From 26047e2d6bde5b2e1b791e0ec1c3234894fdf3fa Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Fri, 30 Nov 2012 11:28:55 +0100 Subject: ASoC: cs4271: fix sparse warning Make the flag in the pdata of type bool to fix a sparse warning. Signed-off-by: Daniel Mack Reported-by: Fengguang Wu Signed-off-by: Mark Brown diff --git a/include/sound/cs4271.h b/include/sound/cs4271.h index 6d9e15e..dd8c48d 100644 --- a/include/sound/cs4271.h +++ b/include/sound/cs4271.h @@ -19,7 +19,7 @@ struct cs4271_platform_data { int gpio_nreset; /* GPIO driving Reset pin, if any */ - int amutec_eq_bmutec:1; /* flag to enable AMUTEC=BMUTEC */ + bool amutec_eq_bmutec; /* flag to enable AMUTEC=BMUTEC */ }; #endif /* __CS4271_H */ diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c index 2ac5fe6..f07d1b7 100644 --- a/sound/soc/codecs/cs4271.c +++ b/sound/soc/codecs/cs4271.c @@ -474,7 +474,7 @@ static int cs4271_probe(struct snd_soc_codec *codec) struct cs4271_platform_data *cs4271plat = codec->dev->platform_data; int ret; int gpio_nreset = -EINVAL; - int amutec_eq_bmutec = 0; + bool amutec_eq_bmutec = false; #ifdef CONFIG_OF if (of_match_device(cs4271_dt_ids, codec->dev)) { @@ -483,7 +483,7 @@ static int cs4271_probe(struct snd_soc_codec *codec) if (!of_get_property(codec->dev->of_node, "cirrus,amutec-eq-bmutec", NULL)) - amutec_eq_bmutec = 1; + amutec_eq_bmutec = true; } #endif -- cgit v0.10.2 From b8455c9f6f661fb9bcb791370478d6d15c9bf2b3 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Fri, 30 Nov 2012 11:28:56 +0100 Subject: ASoC: cs4271: fix property check The driver had the property check for 'cirrus,amutec_eq_bmutec' the wrong way around. That happens if you misspell the property in the bindings during tests. Signed-off-by: Daniel Mack Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c index f07d1b7..449a98b 100644 --- a/sound/soc/codecs/cs4271.c +++ b/sound/soc/codecs/cs4271.c @@ -481,7 +481,7 @@ static int cs4271_probe(struct snd_soc_codec *codec) gpio_nreset = of_get_named_gpio(codec->dev->of_node, "reset-gpio", 0); - if (!of_get_property(codec->dev->of_node, + if (of_get_property(codec->dev->of_node, "cirrus,amutec-eq-bmutec", NULL)) amutec_eq_bmutec = true; } -- cgit v0.10.2 From 1604c1e760119ab3fe9f71679ebaeb058d3d8ae1 Mon Sep 17 00:00:00 2001 From: Jack Pham Date: Mon, 10 Dec 2012 14:28:13 -0800 Subject: usb: dwc3: debugfs: fix regdump offset As with dwc_readl/writel, the global registers are specified as offsets starting from the beginning of the xHCI address space, but the memory region pointed to by dwc->regs already maps to the start of the global addresses. Fix by offsetting each of the regs relative to DWC3_GLOBALS_REGS_START. Signed-off-by: Jack Pham Signed-off-by: Felipe Balbi diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c index 92604b4..5945aad 100644 --- a/drivers/usb/dwc3/debugfs.c +++ b/drivers/usb/dwc3/debugfs.c @@ -56,7 +56,7 @@ #define dump_register(nm) \ { \ .name = __stringify(nm), \ - .offset = DWC3_ ##nm, \ + .offset = DWC3_ ##nm - DWC3_GLOBALS_REGS_START, \ } static const struct debugfs_reg32 dwc3_regs[] = { -- cgit v0.10.2 From 584829459bd4421f0f57d11a6ceeef096ec81d08 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 10 Dec 2012 22:43:45 -0800 Subject: usb: renesas_usbhs: gadget: remove usbhsg_uep_init() Current driver always initialized uep->pipe to NULL on usbhsg_try_start(). But it breaks relationship with usb_ep_ops :: enable/disable functions when suspend/resume. This patch solved this issue by initializing uep->pipe on probe() Signed-off-by: Kuninori Morimoto Signed-off-by: Felipe Balbi diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index dd41f61..c6942d7 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -545,15 +545,6 @@ static int usbhsg_pipe_disable(struct usbhsg_uep *uep) return 0; } -static void usbhsg_uep_init(struct usbhsg_gpriv *gpriv) -{ - int i; - struct usbhsg_uep *uep; - - usbhsg_for_each_uep_with_dcp(uep, gpriv, i) - uep->pipe = NULL; -} - /* * * usb_ep_ops @@ -761,7 +752,6 @@ static int usbhsg_try_start(struct usbhs_priv *priv, u32 status) usbhs_pipe_init(priv, usbhsg_dma_map_ctrl); usbhs_fifo_init(priv); - usbhsg_uep_init(gpriv); /* dcp init */ dcp->pipe = usbhs_dcp_malloc(priv); @@ -998,6 +988,7 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv) */ usbhsg_for_each_uep_with_dcp(uep, gpriv, i) { uep->gpriv = gpriv; + uep->pipe = NULL; snprintf(uep->ep_name, EP_NAME_SIZE, "ep%d", i); uep->ep.name = uep->ep_name; -- cgit v0.10.2 From b33d74db39aae32e7d57265e25c94a488c42e37b Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Tue, 4 Dec 2012 14:26:11 +0100 Subject: USB: fix fsl_otg config dependency USB_GADGET_FSL_USB2 has been changed to USB_FSL_USB2 by commit 193ab2a6070039e7ee2b9b9bebea754a7c52fd1b (usb: gadget: allow multiple gadgets to be built). But old USB_GADGET_FSL_USB2 is still listed as dependency for fsl_otg driver, so the driver cannot be selected in the configuration currently. Fix it. Signed-off-by: Anatolij Gustschin Signed-off-by: Felipe Balbi diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig index 6223062..37962c9 100644 --- a/drivers/usb/otg/Kconfig +++ b/drivers/usb/otg/Kconfig @@ -110,7 +110,7 @@ config AB8500_USB config FSL_USB2_OTG bool "Freescale USB OTG Transceiver Driver" - depends on USB_EHCI_FSL && USB_GADGET_FSL_USB2 && USB_SUSPEND + depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_SUSPEND select USB_OTG select USB_OTG_UTILS help -- cgit v0.10.2 From e887786a466f36720fde5d4a1bc3c7dacd400bd1 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Tue, 27 Nov 2012 22:06:02 -0500 Subject: usb: gadget: mv_udc: fix the clk APIs the clock common driver changes, and arch-mmp will make use of the common clock driver instead of its own. So for enable clock. first prepare the clock then enable the clock. for disable clock first disable the clock then unprepare the clock Signed-off-by: Chao Xie Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c index 379aac7..6e8b127 100644 --- a/drivers/usb/gadget/mv_udc_core.c +++ b/drivers/usb/gadget/mv_udc_core.c @@ -1012,7 +1012,7 @@ static void udc_clock_enable(struct mv_udc *udc) unsigned int i; for (i = 0; i < udc->clknum; i++) - clk_enable(udc->clk[i]); + clk_prepare_enable(udc->clk[i]); } static void udc_clock_disable(struct mv_udc *udc) @@ -1020,7 +1020,7 @@ static void udc_clock_disable(struct mv_udc *udc) unsigned int i; for (i = 0; i < udc->clknum; i++) - clk_disable(udc->clk[i]); + clk_disable_unprepare(udc->clk[i]); } static void udc_stop(struct mv_udc *udc) -- cgit v0.10.2 From c1a96ebd315f82fa0f47adce264adb126cf72764 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Tue, 27 Nov 2012 22:06:05 -0500 Subject: usb: host: ehci-mv: fix clk APIs the clock common driver changes, and arch-mmp will make use of the common clock driver instead of its own. So for enable clock. first prepare the clock then enable the clock. for disable clock first disable the clock then unprepare the clock Signed-off-by: Chao Xie Acked-by: Alan Stern Signed-off-by: Felipe Balbi diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index f7bfc0b..6c56297 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -43,7 +43,7 @@ static void ehci_clock_enable(struct ehci_hcd_mv *ehci_mv) unsigned int i; for (i = 0; i < ehci_mv->clknum; i++) - clk_enable(ehci_mv->clk[i]); + clk_prepare_enable(ehci_mv->clk[i]); } static void ehci_clock_disable(struct ehci_hcd_mv *ehci_mv) @@ -51,7 +51,7 @@ static void ehci_clock_disable(struct ehci_hcd_mv *ehci_mv) unsigned int i; for (i = 0; i < ehci_mv->clknum; i++) - clk_disable(ehci_mv->clk[i]); + clk_disable_unprepare(ehci_mv->clk[i]); } static int mv_ehci_enable(struct ehci_hcd_mv *ehci_mv) -- cgit v0.10.2 From 69f5165ebef1d90bd58e9ce5db018218ea4d089c Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Thu, 22 Nov 2012 13:55:16 +0530 Subject: usb: gadget: s3c-hsotg: Fix invalid free of devm_ allocated data Since hsotg object is allocated using devm_kzalloc() API, there is no need to free this explicitly. But we need to keep the release API to prevent warnings. Signed-off-by: Tushar Behera Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 141971d..439c3f9 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -3477,12 +3477,11 @@ static void s3c_hsotg_delete_debug(struct s3c_hsotg *hsotg) /** * s3c_hsotg_release - release callback for hsotg device * @dev: Device to for which release is called + * + * Nothing to do as the resource is allocated using devm_ API. */ static void s3c_hsotg_release(struct device *dev) { - struct s3c_hsotg *hsotg = dev_get_drvdata(dev); - - kfree(hsotg); } /** -- cgit v0.10.2 From d9fa298f215e050dbb28a6f75fe76459ebd2e7f0 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 10 Dec 2012 22:44:07 -0800 Subject: usb: renesas_usbhs: gadget: usbhsg_ep_disable() care pipe settings Current usbhsg_ep_disable() didn't care uep->pipe and pipe->mod_private variable which is used on usbhsg_ep_enable(). It breaks renesas_usbhs gadget when resume. This patch fixes it. Signed-off-by: Kuninori Morimoto Signed-off-by: Felipe Balbi diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index c6942d7..f2985cd 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -601,7 +601,12 @@ static int usbhsg_ep_disable(struct usb_ep *ep) { struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep); - return usbhsg_pipe_disable(uep); + usbhsg_pipe_disable(uep); + + uep->pipe->mod_private = NULL; + uep->pipe = NULL; + + return 0; } static struct usb_request *usbhsg_ep_alloc_request(struct usb_ep *ep, @@ -753,7 +758,7 @@ static int usbhsg_try_start(struct usbhs_priv *priv, u32 status) usbhsg_dma_map_ctrl); usbhs_fifo_init(priv); - /* dcp init */ + /* dcp init instead of usbhsg_ep_enable() */ dcp->pipe = usbhs_dcp_malloc(priv); dcp->pipe->mod_private = dcp; usbhs_pipe_config_update(dcp->pipe, 0, 0, 64); @@ -815,7 +820,7 @@ static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status) usbhs_sys_set_test_mode(priv, 0); usbhs_sys_function_ctrl(priv, 0); - usbhsg_pipe_disable(dcp); + usbhsg_ep_disable(&dcp->ep); dev_dbg(dev, "stop gadget\n"); -- cgit v0.10.2 From e0b64ce6fe0a9d4ce8cf97fea7fe5ec7125dea30 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Sun, 9 Dec 2012 21:06:37 -0800 Subject: usb: renesas_usbhs: mod_host: fixup usbhsh_ureq_free() timing usbhsh_ureq_free() free ureq which includes ubshs_pkt. But current driver used usbhs_pkt after freed ureq. This patch fixup this bug. Special thanks to Chen Reported-by: Chen Gang Signed-off-by: Kuninori Morimoto Signed-off-by: Felipe Balbi diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c index 3d3cd6c..b868154 100644 --- a/drivers/usb/renesas_usbhs/mod_host.c +++ b/drivers/usb/renesas_usbhs/mod_host.c @@ -661,9 +661,10 @@ static void usbhsh_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt) status = -ESHUTDOWN; urb->actual_length = pkt->actual; - usbhsh_ureq_free(hpriv, ureq); usbhsh_endpoint_sequence_save(hpriv, urb, pkt); + usbhsh_ureq_free(hpriv, ureq); + usbhsh_pipe_detach(hpriv, usbhsh_ep_to_uep(urb->ep)); usb_hcd_unlink_urb_from_ep(hcd, urb); -- cgit v0.10.2 From e3f1dbd21ddfaa22649b93212d5ac4b052c1e4a7 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Tue, 27 Nov 2012 22:06:04 -0500 Subject: usb: otg: mv_otg: fix the clk APIs the clock common driver changes, and arch-mmp will make use of the common clock driver instead of its own. So for enable clock. first prepare the clock then enable the clock. for disable clock first disable the clock then unprepare the clock Signed-off-by: Chao Xie Signed-off-by: Felipe Balbi diff --git a/drivers/usb/otg/mv_otg.c b/drivers/usb/otg/mv_otg.c index 1dd5750..eace975 100644 --- a/drivers/usb/otg/mv_otg.c +++ b/drivers/usb/otg/mv_otg.c @@ -240,7 +240,7 @@ static void otg_clock_enable(struct mv_otg *mvotg) unsigned int i; for (i = 0; i < mvotg->clknum; i++) - clk_enable(mvotg->clk[i]); + clk_prepare_enable(mvotg->clk[i]); } static void otg_clock_disable(struct mv_otg *mvotg) @@ -248,7 +248,7 @@ static void otg_clock_disable(struct mv_otg *mvotg) unsigned int i; for (i = 0; i < mvotg->clknum; i++) - clk_disable(mvotg->clk[i]); + clk_disable_unprepare(mvotg->clk[i]); } static int mv_otg_enable_internal(struct mv_otg *mvotg) -- cgit v0.10.2 From 1d16638e3b9cc195bac18a8fcbca748f33c1bc24 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Tue, 20 Nov 2012 13:23:15 +0100 Subject: usb: gadget: dummy: fix enumeration with g_multi If we do have endpoints named like "ep-a" then bEndpointAddress is counted internally by the gadget framework. If we do have endpoints named like "ep-1" then bEndpointAddress is assigned from the digit after "ep-". If we do have both, then it is likely that after we used up the "generic" endpoints we will use the digits and thus assign one bEndpointAddress to multiple endpoints. This theory can be proofed by using the completely enabled g_multi. Without this patch, the mass storage won't enumerate and times out because it shares endpoints with RNDIS. This patch also adds fills up the endpoints list so we have in total endpoints 1 to 15 in + out available while some of them are restricted to certain types like BULK or ISO. Without this change the nokia gadget won't load because the system does not provide enough (BULK) endpoints but it did before ep-a - ep-f were removed. Cc: stable@vger.kernel.org Signed-off-by: Sebastian Andrzej Siewior Acked-by: Alan Stern Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 95d584d..8cf0c0f 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -130,10 +130,7 @@ static const char ep0name[] = "ep0"; static const char *const ep_name[] = { ep0name, /* everyone has ep0 */ - /* act like a net2280: high speed, six configurable endpoints */ - "ep-a", "ep-b", "ep-c", "ep-d", "ep-e", "ep-f", - - /* or like pxa250: fifteen fixed function endpoints */ + /* act like a pxa250: fifteen fixed function endpoints */ "ep1in-bulk", "ep2out-bulk", "ep3in-iso", "ep4out-iso", "ep5in-int", "ep6in-bulk", "ep7out-bulk", "ep8in-iso", "ep9out-iso", "ep10in-int", "ep11in-bulk", "ep12out-bulk", "ep13in-iso", "ep14out-iso", @@ -141,6 +138,10 @@ static const char *const ep_name[] = { /* or like sa1100: two fixed function endpoints */ "ep1out-bulk", "ep2in-bulk", + + /* and now some generic EPs so we have enough in multi config */ + "ep3out", "ep4in", "ep5out", "ep6out", "ep7in", "ep8out", "ep9in", + "ep10out", "ep11out", "ep12in", "ep13out", "ep14in", "ep15out", }; #define DUMMY_ENDPOINTS ARRAY_SIZE(ep_name) -- cgit v0.10.2 From deeeb9ee1ed5b06864f530c6123976209badd489 Mon Sep 17 00:00:00 2001 From: Afzal Mohammed Date: Tue, 27 Nov 2012 20:15:22 +0530 Subject: usb: musb: dsps: header movement build error fix "54db6ee ARM: OMAP2+: Introduce local usb.h" moved control module bit definitions from plat/usb.h (which dsps glue was using) to a local header in mach-omap2. And in parallel, "c68bb4c usb: musb: dsps: control module handling (quirk)" added control module handling capability to dsps glue driver that used those control module bit definitions. Integration of above two changes would cause build error in musb dsps glue driver (they go through different trees upstream) as is seen now in linux-next. Fix it by adding necessary definitions in dsps glue driver. Signed-off-by: Afzal Mohammed Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index e6f2ae8..f7d764d 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -134,6 +134,11 @@ static const resource_size_t dsps_control_module_phys[] = { DSPS_AM33XX_CONTROL_MODULE_PHYS_1, }; +#define USBPHY_CM_PWRDN (1 << 0) +#define USBPHY_OTG_PWRDN (1 << 1) +#define USBPHY_OTGVDET_EN (1 << 19) +#define USBPHY_OTGSESSEND_EN (1 << 20) + /** * musb_dsps_phy_control - phy on/off * @glue: struct dsps_glue * -- cgit v0.10.2 From 25e14c1fcce5c66b0d2d5e35fad35d044dc320ae Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Thu, 15 Nov 2012 04:21:01 -0500 Subject: usb: gadget: amd5536udc: avoid NULL pointer dereference in udc_pci_probe() dev->pdev is NULL before `dev->pdev = pdev'; use pdev instead. Signed-off-by: Xi Wang Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index fc0ec5e..d9f6b93 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -3231,7 +3231,7 @@ static int udc_pci_probe( } if (!pdev->irq) { - dev_err(&dev->pdev->dev, "irq not set\n"); + dev_err(&pdev->dev, "irq not set\n"); kfree(dev); dev = NULL; retval = -ENODEV; @@ -3250,7 +3250,7 @@ static int udc_pci_probe( dev->txfifo = (u32 __iomem *)(dev->virt_addr + UDC_TXFIFO_ADDR); if (request_irq(pdev->irq, udc_irq, IRQF_SHARED, name, dev) != 0) { - dev_dbg(&dev->pdev->dev, "request_irq(%d) fail\n", pdev->irq); + dev_dbg(&pdev->dev, "request_irq(%d) fail\n", pdev->irq); kfree(dev); dev = NULL; retval = -EBUSY; -- cgit v0.10.2 From 5dbd693576726bd7d3228ee614060e0817305dde Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 14 Nov 2012 13:47:23 +0800 Subject: usb: gadget: tcm_usb_gadge: fix to return error or 0 in tcm_usbg_drop_nexus() In the error handling case of tcm_usbg_drop_nexus(), the error code is assigned to 'ret', but it is ignored. We'd better return 'ret' instead of always return 0. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/tcm_usb_gadget.c b/drivers/usb/gadget/tcm_usb_gadget.c index 4f7f76f..7cacd6a 100644 --- a/drivers/usb/gadget/tcm_usb_gadget.c +++ b/drivers/usb/gadget/tcm_usb_gadget.c @@ -1794,9 +1794,10 @@ static int tcm_usbg_drop_nexus(struct usbg_tpg *tpg) tpg->tpg_nexus = NULL; kfree(tv_nexus); + ret = 0; out: mutex_unlock(&tpg->tpg_mutex); - return 0; + return ret; } static ssize_t tcm_usbg_tpg_store_nexus( -- cgit v0.10.2 From 484ca3a35b43a5127f0ef8e8c816f1b2ab6ce323 Mon Sep 17 00:00:00 2001 From: Haipeng YU Date: Wed, 14 Nov 2012 15:40:01 +0100 Subject: usb: gadget: u_serial: fix switch off blocked When a device is switched off by software, gserial_cleanup will be called, and switch off will be blocked in this function because wake_up_interruptible() in gs_close() can not wake_up the wait_event() in gserial_cleanup(), it should be changed to wake_up() to match the wait_event(). Signed-off-by: Haipeng YU Signed-off-by: Linus Walleij Signed-off-by: Felipe Balbi diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c index d0f9548..598dcc1 100644 --- a/drivers/usb/gadget/u_serial.c +++ b/drivers/usb/gadget/u_serial.c @@ -887,7 +887,7 @@ static void gs_close(struct tty_struct *tty, struct file *file) pr_debug("gs_close: ttyGS%d (%p,%p) done!\n", port->port_num, tty, file); - wake_up_interruptible(&port->port.close_wait); + wake_up(&port->port.close_wait); exit: spin_unlock_irq(&port->port_lock); } -- cgit v0.10.2 From 2ac788f705e5118dd45204e7a5bc8d5bb6873835 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Wed, 14 Nov 2012 18:49:50 +0300 Subject: usb: musb: core: print new line in the driver banner again Commit 5c8a86e10a7c164f44537fabdc169fd8b4e7a440 (usb: musb: drop unneeded musb_debug trickery) erroneously removed '\n' from the driver's banner. Concatenate all the banner substrings while adding it back... Signed-off-by: Sergei Shtylyov Cc: stable@vger.kernel.org # 3.0+ Signed-off-by: Felipe Balbi diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 57cc9c6..766dbda 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -2298,10 +2298,7 @@ static int __init musb_init(void) if (usb_disabled()) return 0; - pr_info("%s: version " MUSB_VERSION ", " - "?dma?" - ", " - "otg (peripheral+host)", + pr_info("%s: version " MUSB_VERSION ", ?dma?, otg (peripheral+host)\n", musb_driver_name); return platform_driver_register(&musb_driver); } -- cgit v0.10.2 From 9b132fbe5419d789f1ef396bed5eb66a365dd1e9 Mon Sep 17 00:00:00 2001 From: Li Zhong Date: Tue, 4 Dec 2012 10:35:13 +0800 Subject: Add rcu user eqs exception hooks for async page fault This patch adds user eqs exception hooks for async page fault page not present code path, to exit the user eqs and re-enter it as necessary. Async page fault is different from other exceptions that it may be triggered from idle process, so we still need rcu_irq_enter() and rcu_irq_exit() to exit cpu idle eqs when needed, to protect the code that needs use rcu. As Frederic pointed out it would be safest and simplest to protect the whole kvm_async_pf_task_wait(). Otherwise, "we need to check all the code there deeply for potential RCU uses and ensure it will never be extended later to use RCU.". However, We'd better re-enter the cpu idle eqs if we get the exception in cpu idle eqs, by calling rcu_irq_exit() before native_safe_halt(). So the patch does what Frederic suggested for rcu_irq_*() API usage here, except that I moved the rcu_irq_*() pair originally in do_async_page_fault() into kvm_async_pf_task_wait(). That's because, I think it's better to have rcu_irq_*() pairs to be in one function ( rcu_irq_exit() after rcu_irq_enter() ), especially here, kvm_async_pf_task_wait() has other callers, which might cause rcu_irq_exit() be called without a matching rcu_irq_enter() before it, which is illegal if the cpu happens to be in rcu idle state. Signed-off-by: Li Zhong Signed-off-by: Gleb Natapov diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 08b973f..9c2bd8b 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -43,6 +43,7 @@ #include #include #include +#include static int kvmapf = 1; @@ -121,6 +122,8 @@ void kvm_async_pf_task_wait(u32 token) struct kvm_task_sleep_node n, *e; DEFINE_WAIT(wait); + rcu_irq_enter(); + spin_lock(&b->lock); e = _find_apf_task(b, token); if (e) { @@ -128,6 +131,8 @@ void kvm_async_pf_task_wait(u32 token) hlist_del(&e->link); kfree(e); spin_unlock(&b->lock); + + rcu_irq_exit(); return; } @@ -152,13 +157,16 @@ void kvm_async_pf_task_wait(u32 token) /* * We cannot reschedule. So halt. */ + rcu_irq_exit(); native_safe_halt(); + rcu_irq_enter(); local_irq_disable(); } } if (!n.halted) finish_wait(&n.wq, &wait); + rcu_irq_exit(); return; } EXPORT_SYMBOL_GPL(kvm_async_pf_task_wait); @@ -252,10 +260,10 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code) break; case KVM_PV_REASON_PAGE_NOT_PRESENT: /* page is swapped out by the host. */ - rcu_irq_enter(); + exception_enter(regs); exit_idle(); kvm_async_pf_task_wait((u32)read_cr2()); - rcu_irq_exit(); + exception_exit(regs); break; case KVM_PV_REASON_PAGE_READY: rcu_irq_enter(); -- cgit v0.10.2 From 1509ae56cdc19a12f76000e31602e4119fffc571 Mon Sep 17 00:00:00 2001 From: Bharat Bhushan Date: Tue, 18 Dec 2012 01:21:28 +0000 Subject: powerpc: Corrected include header path in kvm_para.h The include/uapi/asm/kvm_para.h includes but the correct reference should be as this is the place where make install_header installs the header files for userspace. Signed-off-by: Bharat Bhushan CC: stable@vger.kernel.org Signed-off-by: Alexander Graf diff --git a/arch/powerpc/include/uapi/asm/kvm_para.h b/arch/powerpc/include/uapi/asm/kvm_para.h index ed0e025..e3af328 100644 --- a/arch/powerpc/include/uapi/asm/kvm_para.h +++ b/arch/powerpc/include/uapi/asm/kvm_para.h @@ -78,7 +78,7 @@ struct kvm_vcpu_arch_shared { #define KVM_HCALL_TOKEN(num) _EV_HCALL_TOKEN(EV_KVM_VENDOR_ID, num) -#include +#include #define KVM_FEATURE_MAGIC_PAGE 1 -- cgit v0.10.2 From 08b27848da620f206a8b6d80f26184485dd7aa40 Mon Sep 17 00:00:00 2001 From: Patrick Lai Date: Wed, 19 Dec 2012 19:36:02 -0800 Subject: ASoC: pcm: allow backend hardware to be freed in pause state When front-end PCM session is in paused state, back-end PCM session will be put in paused state as well if given front-end PCM session is the only client of given back-end. Then, application closes front-end PCM session, DPCM framework will not allow back-end enters HW_FREE state so back-end will never get shutdown completely. Signed-off-by: Patrick Lai Acked-by: Liam Girdwood Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index d7711fc..cf191e6 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1243,6 +1243,7 @@ static int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream) if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && + (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) && (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) continue; -- cgit v0.10.2 From ad1937cdd59c412097ec2bb8f38c12a5640f1f9a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 20 Dec 2012 16:17:25 +0800 Subject: ASoC: sta529: Fix update register bits in sta529_set_dai_fmt Both the mask and mode settings are wrong in current code. According to the datasheet: S2PCFG0 (0x0A) BIT[3:1] DATA_FORMAT serial interface protocol format: 000: left Justified 001: I2S (default) 010: right justified 100: PCM no delay 101: PCM delay 111: DSP Thus fixes the defines for LEFT_J_DATA_FORMAT, I2S_DATA_FORMAT, and RIGHT_J_DATA_FORMAT. Also adds define for DATA_FORMAT_MSK. Signed-off-by: Axel Lin Acked-by: Rajeev Kumar Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/sta529.c b/sound/soc/codecs/sta529.c index ab355c4..40c07be 100644 --- a/sound/soc/codecs/sta529.c +++ b/sound/soc/codecs/sta529.c @@ -74,9 +74,10 @@ SNDRV_PCM_FMTBIT_S32_LE) #define S2PC_VALUE 0x98 #define CLOCK_OUT 0x60 -#define LEFT_J_DATA_FORMAT 0x10 -#define I2S_DATA_FORMAT 0x12 -#define RIGHT_J_DATA_FORMAT 0x14 +#define DATA_FORMAT_MSK 0x0E +#define LEFT_J_DATA_FORMAT 0x00 +#define I2S_DATA_FORMAT 0x02 +#define RIGHT_J_DATA_FORMAT 0x04 #define CODEC_MUTE_VAL 0x80 #define POWER_CNTLMSAK 0x40 @@ -289,7 +290,7 @@ static int sta529_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt) return -EINVAL; } - snd_soc_update_bits(codec, STA529_S2PCFG0, 0x0D, mode); + snd_soc_update_bits(codec, STA529_S2PCFG0, DATA_FORMAT_MSK, mode); return 0; } -- cgit v0.10.2 From 9bde4f0b1c83d1129a9fc8ec5b2611ba6dab1215 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 19 Dec 2012 16:05:00 +0000 Subject: ASoC: core: Fix SOC_DOUBLE_RANGE() macros Although we've had macros defining double _RANGE controls for a while now they've not actually been backed up properly by the implementation, it's treated everything as mono. Fix that by implementing the handling in the stereo controls, ensuring that the mono controls don't mistakenly get treated as stereo. Signed-off-by: Mark Brown Acked-by: Liam Girdwood diff --git a/include/sound/soc.h b/include/sound/soc.h index 769e27c..bc56738 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -58,8 +58,9 @@ .info = snd_soc_info_volsw_range, .get = snd_soc_get_volsw_range, \ .put = snd_soc_put_volsw_range, \ .private_value = (unsigned long)&(struct soc_mixer_control) \ - {.reg = xreg, .shift = xshift, .min = xmin,\ - .max = xmax, .platform_max = xmax, .invert = xinvert} } + {.reg = xreg, .rreg = xreg, .shift = xshift, \ + .rshift = xshift, .min = xmin, .max = xmax, \ + .platform_max = xmax, .invert = xinvert} } #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ @@ -88,8 +89,9 @@ .info = snd_soc_info_volsw_range, \ .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \ .private_value = (unsigned long)&(struct soc_mixer_control) \ - {.reg = xreg, .shift = xshift, .min = xmin,\ - .max = xmax, .platform_max = xmax, .invert = xinvert} } + {.reg = xreg, .rreg = xreg, .shift = xshift, \ + .rshift = xshift, .min = xmin, .max = xmax, \ + .platform_max = xmax, .invert = xinvert} } #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 91d592f..e0d4630 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2917,7 +2917,7 @@ int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol, platform_max = mc->platform_max; uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = 1; + uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = platform_max - min; @@ -2941,12 +2941,14 @@ int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, (struct soc_mixer_control *)kcontrol->private_value; struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); unsigned int reg = mc->reg; + unsigned int rreg = mc->rreg; unsigned int shift = mc->shift; int min = mc->min; int max = mc->max; unsigned int mask = (1 << fls(max)) - 1; unsigned int invert = mc->invert; unsigned int val, val_mask; + int ret; val = ((ucontrol->value.integer.value[0] + min) & mask); if (invert) @@ -2954,7 +2956,21 @@ int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, val_mask = mask << shift; val = val << shift; - return snd_soc_update_bits_locked(codec, reg, val_mask, val); + ret = snd_soc_update_bits_locked(codec, reg, val_mask, val); + if (ret != 0) + return ret; + + if (snd_soc_volsw_is_stereo(mc)) { + val = ((ucontrol->value.integer.value[1] + min) & mask); + if (invert) + val = max - val; + val_mask = mask << shift; + val = val << shift; + + ret = snd_soc_update_bits_locked(codec, rreg, val_mask, val); + } + + return ret; } EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range); @@ -2974,11 +2990,13 @@ int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, (struct soc_mixer_control *)kcontrol->private_value; struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); unsigned int reg = mc->reg; + unsigned int rreg = mc->rreg; unsigned int shift = mc->shift; int min = mc->min; int max = mc->max; unsigned int mask = (1 << fls(max)) - 1; unsigned int invert = mc->invert; + int ret; ucontrol->value.integer.value[0] = (snd_soc_read(codec, reg) >> shift) & mask; @@ -2988,6 +3006,16 @@ int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, ucontrol->value.integer.value[0] = ucontrol->value.integer.value[0] - min; + if (snd_soc_volsw_is_stereo(mc)) { + ucontrol->value.integer.value[1] = + (snd_soc_read(codec, rreg) >> shift) & mask; + if (invert) + ucontrol->value.integer.value[1] = + max - ucontrol->value.integer.value[1]; + ucontrol->value.integer.value[1] = + ucontrol->value.integer.value[1] - min; + } + return 0; } EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range); -- cgit v0.10.2 From 886d751a2ea99a160f2d0a472231566d9cb0cf58 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Thu, 20 Dec 2012 14:11:33 -0500 Subject: x86, efi: correct precedence of operators in setup_efi_pci With the current code, the condition in the if() doesn't make much sense due to precedence of operators. Signed-off-by: Sasha Levin Link: http://lkml.kernel.org/r/1356030701-16284-25-git-send-email-sasha.levin@oracle.com Cc: Matt Fleming Cc: Matthew Garrett Cc: Bjorn Helgaas Cc: Seth Forshee Signed-off-by: H. Peter Anvin diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c index b1942e2..18e329c 100644 --- a/arch/x86/boot/compressed/eboot.c +++ b/arch/x86/boot/compressed/eboot.c @@ -302,7 +302,7 @@ static efi_status_t setup_efi_pci(struct boot_params *params) if (status != EFI_SUCCESS) continue; - if (!attributes & EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM) + if (!(attributes & EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM)) continue; if (!pci->romimage || !pci->romsize) -- cgit v0.10.2 From 2a5f431592343b78896013b055582f94c12a5049 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 21 Dec 2012 16:28:37 +0800 Subject: ASoC: wm2200: Fix setting dai format in wm2200_set_fmt According to the defines in wm2200.h: /* * R1284 (0x504) - Audio IF 1_5 */ We should not left shift 1 bit for fmt_val when setting dai format. Signed-off-by: Axel Lin Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/wm2200.c b/sound/soc/codecs/wm2200.c index afcf31d..a12fc2f 100644 --- a/sound/soc/codecs/wm2200.c +++ b/sound/soc/codecs/wm2200.c @@ -1626,7 +1626,7 @@ static int wm2200_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) WM2200_AIF1TX_LRCLK_MSTR | WM2200_AIF1TX_LRCLK_INV, lrclk); snd_soc_update_bits(codec, WM2200_AUDIO_IF_1_5, - WM2200_AIF1_FMT_MASK << 1, fmt_val << 1); + WM2200_AIF1_FMT_MASK, fmt_val); return 0; } -- cgit v0.10.2 From 5db1bc1892aa70d378ea7563852ae87f3772519b Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sat, 22 Dec 2012 10:38:14 -0200 Subject: ASoC: soc-core: Remove unused 'ret' variable commit 9bde4f0b1c (ASoC: core: Fix SOC_DOUBLE_RANGE() macros) introduced the following build warning: sound/soc/soc-core.c:2999:6: warning: unused variable 'ret' [-Wunused-variable] Remove the unused 'ret' variable. Signed-off-by: Fabio Estevam Signed-off-by: Mark Brown diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index e0d4630..29046e7 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2996,7 +2996,6 @@ int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, int max = mc->max; unsigned int mask = (1 << fls(max)) - 1; unsigned int invert = mc->invert; - int ret; ucontrol->value.integer.value[0] = (snd_soc_read(codec, reg) >> shift) & mask; -- cgit v0.10.2 From b50684da6cd5a9ec47ea5556bc9f5461c1d7017c Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sun, 23 Dec 2012 15:45:31 -0200 Subject: ASoC: sgtl5000: Fix maximum value for microphone gain sgtl5000 microphone gain only has 2 bits of resolution, so maximum value is 3. From Eric Nelson: "We also found that for the microphones we have here (commodity PC boom mics) a default value of 2 for the gain gives the best results." So change the default microphone gain as well. Signed-off-by: Eric Nelson Signed-off-by: Fabio Estevam Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index cb1675c..92bbfec 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -401,7 +401,7 @@ static const struct snd_kcontrol_new sgtl5000_snd_controls[] = { 5, 1, 0), SOC_SINGLE_TLV("Mic Volume", SGTL5000_CHIP_MIC_CTRL, - 0, 4, 0, mic_gain_tlv), + 0, 3, 0, mic_gain_tlv), }; /* mute the codec used by alsa core */ @@ -1344,7 +1344,7 @@ static int sgtl5000_probe(struct snd_soc_codec *codec) SGTL5000_HP_ZCD_EN | SGTL5000_ADC_ZCD_EN); - snd_soc_write(codec, SGTL5000_CHIP_MIC_CTRL, 0); + snd_soc_write(codec, SGTL5000_CHIP_MIC_CTRL, 2); /* * disable DAP -- cgit v0.10.2 From ec20f2f8d3714cfb491a138eb4c0c720577d49e6 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 21 Dec 2012 09:19:20 +0800 Subject: ASoC: lm49453: Fix mask for setting mode bit in lm49453_set_dai_fmt() The mode variable is either 0 or 1. To update mode setting, the mask should be BIT(0) rather than BIT(1). Signed-off-by: Axel Lin Tested-by: Omair M. Abdullah Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/lm49453.c b/sound/soc/codecs/lm49453.c index d75257d..c0d203b 100644 --- a/sound/soc/codecs/lm49453.c +++ b/sound/soc/codecs/lm49453.c @@ -1218,7 +1218,7 @@ static int lm49453_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) } snd_soc_update_bits(codec, LM49453_P0_AUDIO_PORT1_BASIC_REG, - LM49453_AUDIO_PORT1_BASIC_FMT_MASK|BIT(1)|BIT(5), + LM49453_AUDIO_PORT1_BASIC_FMT_MASK|BIT(0)|BIT(5), (aif_val | mode | clk_phase)); snd_soc_write(codec, LM49453_P0_AUDIO_PORT1_RX_MSB_REG, clk_shift); -- cgit v0.10.2 From 7110a287ff2b1f3780905d1686a1a4edccb95133 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 20 Dec 2012 23:29:42 +0800 Subject: ASoC: arizona: Do proper shift for setting AIF rate ARIZONA_AIF1_RATE_MASK is 0x7800 /* AIF1_RATE - [14:11] */ Thus we need left shift ARIZONA_AIF1_RATE_SHIFT when setting aif1 rate. Signed-off-by: Axel Lin Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index adf397b..38248a7 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -714,7 +714,8 @@ static int arizona_hw_params(struct snd_pcm_substream *substream, snd_soc_update_bits(codec, ARIZONA_ASYNC_SAMPLE_RATE_1, ARIZONA_ASYNC_SAMPLE_RATE_MASK, sr_val); snd_soc_update_bits(codec, base + ARIZONA_AIF_RATE_CTRL, - ARIZONA_AIF1_RATE_MASK, 8); + ARIZONA_AIF1_RATE_MASK, + 8 << ARIZONA_AIF1_RATE_SHIFT); break; default: arizona_aif_err(dai, "Invalid clock %d\n", dai_priv->clk); -- cgit v0.10.2 From a8c02db029385fb4426e0396e108ab23cd08f384 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 18 Dec 2012 14:05:01 +0000 Subject: ASoC: arizona: Correct FLL source definitions The FLL source constants were numbered as a simple enumeration but were being used in the code as direct values to be written to the registers. Renumber the constants to reflect the usage. Reported-by: Ryo Tsutsui Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/arizona.h b/sound/soc/codecs/arizona.h index 41dae1e..4deebeb 100644 --- a/sound/soc/codecs/arizona.h +++ b/sound/soc/codecs/arizona.h @@ -34,15 +34,15 @@ #define ARIZONA_FLL_SRC_MCLK1 0 #define ARIZONA_FLL_SRC_MCLK2 1 -#define ARIZONA_FLL_SRC_SLIMCLK 2 -#define ARIZONA_FLL_SRC_FLL1 3 -#define ARIZONA_FLL_SRC_FLL2 4 -#define ARIZONA_FLL_SRC_AIF1BCLK 5 -#define ARIZONA_FLL_SRC_AIF2BCLK 6 -#define ARIZONA_FLL_SRC_AIF3BCLK 7 -#define ARIZONA_FLL_SRC_AIF1LRCLK 8 -#define ARIZONA_FLL_SRC_AIF2LRCLK 9 -#define ARIZONA_FLL_SRC_AIF3LRCLK 10 +#define ARIZONA_FLL_SRC_SLIMCLK 3 +#define ARIZONA_FLL_SRC_FLL1 4 +#define ARIZONA_FLL_SRC_FLL2 5 +#define ARIZONA_FLL_SRC_AIF1BCLK 8 +#define ARIZONA_FLL_SRC_AIF2BCLK 9 +#define ARIZONA_FLL_SRC_AIF3BCLK 10 +#define ARIZONA_FLL_SRC_AIF1LRCLK 12 +#define ARIZONA_FLL_SRC_AIF2LRCLK 13 +#define ARIZONA_FLL_SRC_AIF3LRCLK 14 #define ARIZONA_MIXER_VOL_MASK 0x00FE #define ARIZONA_MIXER_VOL_SHIFT 1 -- cgit v0.10.2 From 88ac43924b396e524288570ed3b11e8c94c1191f Mon Sep 17 00:00:00 2001 From: "MR.Swami.Reddy@ti.com" Date: Fri, 7 Dec 2012 17:00:10 +0530 Subject: ASoC: lm49453: Fix adc, mic and sidetone volume ranges Add adc, mic, sidetone volume ranges and appropriately added the controls. Fix the DAC HP/EP/LS/LO/HA maximum gain values. Signed-off-by: MR Swami Reddy Tested-by: Vinod Koul -- sound/soc/codecs/lm49453.c | 43 ++++++++++++++++++++++++------------------- 1 files changed, 24 insertions(+), 19 deletions(-) Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/lm49453.c b/sound/soc/codecs/lm49453.c index c0d203b..f348328 100644 --- a/sound/soc/codecs/lm49453.c +++ b/sound/soc/codecs/lm49453.c @@ -525,36 +525,41 @@ SOC_DAPM_SINGLE("Port2_2 Switch", LM49453_P0_PORT2_TX2_REG, 7, 1, 0), }; /* TLV Declarations */ -static const DECLARE_TLV_DB_SCALE(digital_tlv, -7650, 150, 1); -static const DECLARE_TLV_DB_SCALE(port_tlv, 0, 600, 0); +static const DECLARE_TLV_DB_SCALE(adc_dac_tlv, -7650, 150, 1); +static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 200, 1); +static const DECLARE_TLV_DB_SCALE(port_tlv, -1800, 600, 0); +static const DECLARE_TLV_DB_SCALE(stn_tlv, -7200, 150, 0); static const struct snd_kcontrol_new lm49453_sidetone_mixer_controls[] = { /* Sidetone supports mono only */ SOC_DAPM_SINGLE_TLV("Sidetone ADCL Volume", LM49453_P0_STN_VOL_ADCL_REG, - 0, 0x3F, 0, digital_tlv), + 0, 0x3F, 0, stn_tlv), SOC_DAPM_SINGLE_TLV("Sidetone ADCR Volume", LM49453_P0_STN_VOL_ADCR_REG, - 0, 0x3F, 0, digital_tlv), + 0, 0x3F, 0, stn_tlv), SOC_DAPM_SINGLE_TLV("Sidetone DMIC1L Volume", LM49453_P0_STN_VOL_DMIC1L_REG, - 0, 0x3F, 0, digital_tlv), + 0, 0x3F, 0, stn_tlv), SOC_DAPM_SINGLE_TLV("Sidetone DMIC1R Volume", LM49453_P0_STN_VOL_DMIC1R_REG, - 0, 0x3F, 0, digital_tlv), + 0, 0x3F, 0, stn_tlv), SOC_DAPM_SINGLE_TLV("Sidetone DMIC2L Volume", LM49453_P0_STN_VOL_DMIC2L_REG, - 0, 0x3F, 0, digital_tlv), + 0, 0x3F, 0, stn_tlv), SOC_DAPM_SINGLE_TLV("Sidetone DMIC2R Volume", LM49453_P0_STN_VOL_DMIC2R_REG, - 0, 0x3F, 0, digital_tlv), + 0, 0x3F, 0, stn_tlv), }; static const struct snd_kcontrol_new lm49453_snd_controls[] = { /* mic1 and mic2 supports mono only */ - SOC_SINGLE_TLV("Mic1 Volume", LM49453_P0_ADC_LEVELL_REG, 0, 6, - 0, digital_tlv), - SOC_SINGLE_TLV("Mic2 Volume", LM49453_P0_ADC_LEVELR_REG, 0, 6, - 0, digital_tlv), + SOC_SINGLE_TLV("Mic1 Volume", LM49453_P0_MICL_REG, 0, 15, 0, mic_tlv), + SOC_SINGLE_TLV("Mic2 Volume", LM49453_P0_MICR_REG, 0, 15, 0, mic_tlv), + + SOC_SINGLE_TLV("ADCL Volume", LM49453_P0_ADC_LEVELL_REG, 0, 63, + 0, adc_dac_tlv), + SOC_SINGLE_TLV("ADCR Volume", LM49453_P0_ADC_LEVELR_REG, 0, 63, + 0, adc_dac_tlv), SOC_DOUBLE_R_TLV("DMIC1 Volume", LM49453_P0_DMIC1_LEVELL_REG, - LM49453_P0_DMIC1_LEVELR_REG, 0, 6, 0, digital_tlv), + LM49453_P0_DMIC1_LEVELR_REG, 0, 63, 0, adc_dac_tlv), SOC_DOUBLE_R_TLV("DMIC2 Volume", LM49453_P0_DMIC2_LEVELL_REG, - LM49453_P0_DMIC2_LEVELR_REG, 0, 6, 0, digital_tlv), + LM49453_P0_DMIC2_LEVELR_REG, 0, 63, 0, adc_dac_tlv), SOC_DAPM_ENUM("Mic2Mode", lm49453_mic2mode_enum), SOC_DAPM_ENUM("DMIC12 SRC", lm49453_dmic12_cfg_enum), @@ -569,16 +574,16 @@ static const struct snd_kcontrol_new lm49453_snd_controls[] = { 2, 1, 0), SOC_DOUBLE_R_TLV("DAC HP Volume", LM49453_P0_DAC_HP_LEVELL_REG, - LM49453_P0_DAC_HP_LEVELR_REG, 0, 6, 0, digital_tlv), + LM49453_P0_DAC_HP_LEVELR_REG, 0, 63, 0, adc_dac_tlv), SOC_DOUBLE_R_TLV("DAC LO Volume", LM49453_P0_DAC_LO_LEVELL_REG, - LM49453_P0_DAC_LO_LEVELR_REG, 0, 6, 0, digital_tlv), + LM49453_P0_DAC_LO_LEVELR_REG, 0, 63, 0, adc_dac_tlv), SOC_DOUBLE_R_TLV("DAC LS Volume", LM49453_P0_DAC_LS_LEVELL_REG, - LM49453_P0_DAC_LS_LEVELR_REG, 0, 6, 0, digital_tlv), + LM49453_P0_DAC_LS_LEVELR_REG, 0, 63, 0, adc_dac_tlv), SOC_DOUBLE_R_TLV("DAC HA Volume", LM49453_P0_DAC_HA_LEVELL_REG, - LM49453_P0_DAC_HA_LEVELR_REG, 0, 6, 0, digital_tlv), + LM49453_P0_DAC_HA_LEVELR_REG, 0, 63, 0, adc_dac_tlv), SOC_SINGLE_TLV("EP Volume", LM49453_P0_DAC_LS_LEVELL_REG, - 0, 6, 0, digital_tlv), + 0, 63, 0, adc_dac_tlv), SOC_SINGLE_TLV("PORT1_1_RX_LVL Volume", LM49453_P0_PORT1_RX_LVL1_REG, 0, 3, 0, port_tlv), -- cgit v0.10.2 From 9dc754dfa78ca4ef9a117245e5ae3b9b7312d59d Mon Sep 17 00:00:00 2001 From: "MR.Swami.Reddy@ti.com" Date: Fri, 7 Dec 2012 17:06:54 +0530 Subject: ASoC: lm49453: Update lm49453_reg_defs values as per LM49453 HW revision-B Update lm49453_reg_defs values as per LM49453 HW revision-B Signed-off-by: M R Swami Reddy Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/lm49453.c b/sound/soc/codecs/lm49453.c index f348328..e19490c 100644 --- a/sound/soc/codecs/lm49453.c +++ b/sound/soc/codecs/lm49453.c @@ -111,9 +111,9 @@ static struct reg_default lm49453_reg_defs[] = { { 101, 0x00 }, { 102, 0x00 }, { 103, 0x01 }, - { 105, 0x01 }, - { 106, 0x00 }, - { 107, 0x01 }, + { 104, 0x01 }, + { 105, 0x00 }, + { 106, 0x01 }, { 107, 0x00 }, { 108, 0x00 }, { 109, 0x00 }, @@ -163,56 +163,25 @@ static struct reg_default lm49453_reg_defs[] = { { 184, 0x00 }, { 185, 0x00 }, { 186, 0x00 }, - { 189, 0x00 }, + { 187, 0x00 }, { 188, 0x00 }, - { 194, 0x00 }, - { 195, 0x00 }, - { 196, 0x00 }, - { 197, 0x00 }, - { 200, 0x00 }, - { 201, 0x00 }, - { 202, 0x00 }, - { 203, 0x00 }, - { 204, 0x00 }, - { 205, 0x00 }, - { 208, 0x00 }, + { 189, 0x00 }, + { 208, 0x06 }, { 209, 0x00 }, - { 210, 0x00 }, - { 211, 0x00 }, - { 213, 0x00 }, - { 214, 0x00 }, - { 215, 0x00 }, - { 216, 0x00 }, - { 217, 0x00 }, - { 218, 0x00 }, - { 219, 0x00 }, + { 210, 0x08 }, + { 211, 0x54 }, + { 212, 0x14 }, + { 213, 0x0d }, + { 214, 0x0d }, + { 215, 0x14 }, + { 216, 0x60 }, { 221, 0x00 }, { 222, 0x00 }, + { 223, 0x00 }, { 224, 0x00 }, - { 225, 0x00 }, - { 226, 0x00 }, - { 227, 0x00 }, - { 228, 0x00 }, - { 229, 0x00 }, - { 230, 0x13 }, - { 231, 0x00 }, - { 232, 0x80 }, - { 233, 0x0C }, - { 234, 0xDD }, - { 235, 0x00 }, - { 236, 0x04 }, - { 237, 0x00 }, - { 238, 0x00 }, - { 239, 0x00 }, - { 240, 0x00 }, - { 241, 0x00 }, - { 242, 0x00 }, - { 243, 0x00 }, - { 244, 0x00 }, - { 245, 0x00 }, { 248, 0x00 }, { 249, 0x00 }, - { 254, 0x00 }, + { 250, 0x00 }, { 255, 0x00 }, }; -- cgit v0.10.2 From 3271a4fc7daeb489bfe1730023c166065e6fb0e7 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 20 Dec 2012 16:53:16 +0800 Subject: ASoC: cs42l52: Catch no-match case in cs42l52_get_clk In the case of no-match, return -EINVAL instead of 0. Since we assign i to ret in the for loop, ret always less than ARRAY_SIZE(clk_map_table). Thus remove the boundary checking for ret. Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c index 99bb1c6..9811a54 100644 --- a/sound/soc/codecs/cs42l52.c +++ b/sound/soc/codecs/cs42l52.c @@ -737,7 +737,7 @@ static const struct cs42l52_clk_para clk_map_table[] = { static int cs42l52_get_clk(int mclk, int rate) { - int i, ret = 0; + int i, ret = -EINVAL; u_int mclk1, mclk2 = 0; for (i = 0; i < ARRAY_SIZE(clk_map_table); i++) { @@ -749,8 +749,6 @@ static int cs42l52_get_clk(int mclk, int rate) } } } - if (ret > ARRAY_SIZE(clk_map_table)) - return -EINVAL; return ret; } -- cgit v0.10.2 From 3ef303988cfcb35922f550892cf476e861377f0b Mon Sep 17 00:00:00 2001 From: Inderpal Singh Date: Wed, 12 Dec 2012 08:57:00 +0530 Subject: regulator: s5m8767: Fix probe failure due to stack corruption The function sec_reg_read invokes regmap_read which expects unsigned int * as the destination address. The existing driver is passing address of local variable "val" which is u8. This causes the stack corruption and following dump is observed during probe. Hence change "val" from u8 to unsigned int. Unable to handle kernel paging request at virtual address 02410020 pgd = c0004000 [02410020] *pgd=00000000 Internal error: Oops: 80000005 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 Not tainted (3.6.0-00696-g98a28b18-dirty #27) PC is at 0x2410020 LR is at _regulator_get_voltage+0x3c/0x70 pc : [<02410020>] lr : [] psr: 20000013 sp : cf839b68 ip : 00000000 fp : cf92d410 r10: 0000cfd0 r9 : c06d9878 r8 : 0000f0a0 r7 : cf839b70 r6 : cf92d400 r5 : 00000011 r4 : cf000000 r3 : 02410020 r2 : 00000000 r1 : 00000048 r0 : cf000000 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel ........................... ................................. [] (_regulator_get_voltage+0x3c/0x70) from [] (print_constraints+0x50/0x36c) [] (print_constraints+0x50/0x36c) from [] (set_machine_constraints+0xe8/0x2b0) [] (set_machine_constraints+0xe8/0x2b0) from [] (regulator_register+0x2fc/0x604) [] (regulator_register+0x2fc/0x604) from [] (s5m8767_pmic_probe+0x688/0x718) [] (s5m8767_pmic_probe+0x688/0x718) from [] (platform_drv_probe+0x18/0x1c) [] (platform_drv_probe+0x18/0x1c) from [] (really_probe+0x68/0x1f4) [] (really_probe+0x68/0x1f4) from [] (driver_probe_device+0x30/0x48) Signed-off-by: Inderpal Singh Signed-off-by: Mark Brown diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c index 9f991f2..33b65c9 100644 --- a/drivers/regulator/s5m8767.c +++ b/drivers/regulator/s5m8767.c @@ -214,7 +214,7 @@ static int s5m8767_reg_is_enabled(struct regulator_dev *rdev) struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); int ret, reg; int mask = 0xc0, enable_ctrl; - u8 val; + unsigned int val; ret = s5m8767_get_register(rdev, ®, &enable_ctrl); if (ret == -EINVAL) @@ -306,7 +306,7 @@ static int s5m8767_get_voltage_sel(struct regulator_dev *rdev) struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); int reg, mask, ret; int reg_id = rdev_get_id(rdev); - u8 val; + unsigned int val; ret = s5m8767_get_voltage_register(rdev, ®); if (ret) -- cgit v0.10.2 From 19280e40714c9a3c55ab47f76df110072f6cde5e Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 12 Dec 2012 09:22:46 +0800 Subject: regulator: core: Fix continuous_voltage_range case in regulator_can_change_voltage Regulator drivers with continuous_voltage_range flag set allows not setting n_voltages. Thus if continuous_voltage_range is set, check the constraint range instead. Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 0f65b24..d7448ad 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1885,9 +1885,15 @@ int regulator_can_change_voltage(struct regulator *regulator) struct regulator_dev *rdev = regulator->rdev; if (rdev->constraints && - rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE && - (rdev->desc->n_voltages - rdev->desc->linear_min_sel) > 1) - return 1; + (rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) { + if (rdev->desc->n_voltages - rdev->desc->linear_min_sel > 1) + return 1; + + if (rdev->desc->continuous_voltage_range && + rdev->constraints->min_uV && rdev->constraints->max_uV && + rdev->constraints->min_uV != rdev->constraints->max_uV) + return 1; + } return 0; } -- cgit v0.10.2 From 1690970d0d28051e2652d9bae2f73288e017e142 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Thu, 6 Dec 2012 16:09:00 +0000 Subject: iio:adf4350: Fix typo There is a typo in the adf4350 driver turning a shift into a compare. This patch fixes it. Signed-off-by: Michael Hennerich Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c index e35bb8f..c7de8b5 100644 --- a/drivers/iio/frequency/adf4350.c +++ b/drivers/iio/frequency/adf4350.c @@ -173,7 +173,7 @@ static int adf4350_set_freq(struct adf4350_state *st, unsigned long long freq) } while ((st->r1_mod > ADF4350_MAX_MODULUS) && r_cnt); } while (r_cnt == 0); - tmp = freq * (u64)st->r1_mod + (st->fpfd > 1); + tmp = freq * (u64)st->r1_mod + (st->fpfd >> 1); do_div(tmp, st->fpfd); /* Div round closest (n + d/2)/d */ st->r0_fract = do_div(tmp, st->r1_mod); st->r0_int = tmp; -- cgit v0.10.2 From 31ad70ea585f744ba8d1310807dcf99043d4f3c4 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Thu, 6 Dec 2012 13:48:00 +0000 Subject: staging:iio:adis16260: Select adislib Commit 9d5e9fdf ("staging:iio:adis16260: Use adis library") switched over the adis16260 driver to use the common adis library but neglected to update the Kconfig entry to reflect the change. This leads to the following compile error if no other driver selects the adis library: drivers/built-in.o: In function `adis16260_write_frequency': adis16260_core.c:(.text+0x5a83bf): undefined reference to `adis_write_reg_8' drivers/built-in.o: In function `adis16260_read_frequency': adis16260_core.c:(.text+0x5a8433): undefined reference to `adis_read_reg_16' drivers/built-in.o: In function `adis16260_write_raw': adis16260_core.c:(.text+0x5a8538): undefined reference to `adis_write_reg_16' adis16260_core.c:(.text+0x5a856b): undefined reference to `adis_write_reg_16' drivers/built-in.o: In function `adis16260_read_raw': adis16260_core.c:(.text+0x5a85d3): undefined reference to `adis_single_conversion' adis16260_core.c:(.text+0x5a873e): undefined reference to `adis_read_reg_16' adis16260_core.c:(.text+0x5a87fb): undefined reference to `adis_read_reg_16' drivers/built-in.o: In function `adis16260_probe': adis16260_core.c:(.devinit.text+0x5c6b8): undefined reference to `adis_init' adis16260_core.c:(.devinit.text+0x5c799): undefined reference to `adis_initial_startup' drivers/built-in.o: In function `adis16260_remove': adis16260_core.c:(.devexit.text+0x9943): undefined reference to `adis_write_reg_16' This patch updates the adis16260 Kconfig entry to select the adis library. Reported-by: Fengguang Wu Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/gyro/Kconfig b/drivers/staging/iio/gyro/Kconfig index ea295b2..87979a0 100644 --- a/drivers/staging/iio/gyro/Kconfig +++ b/drivers/staging/iio/gyro/Kconfig @@ -27,8 +27,8 @@ config ADIS16130 config ADIS16260 tristate "Analog Devices ADIS16260 Digital Gyroscope Sensor SPI driver" depends on SPI - select IIO_TRIGGER if IIO_BUFFER - select IIO_SW_RING if IIO_BUFFER + select IIO_ADIS_LIB + select IIO_ADIS_LIB_BUFFER if IIO_BUFFER help Say yes here to build support for Analog Devices ADIS16260 ADIS16265 ADIS16250 ADIS16255 and ADIS16251 programmable digital gyroscope sensors. -- cgit v0.10.2 From 116797672ffdd3635eafa25db5bd312e65c5ad01 Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Wed, 12 Dec 2012 15:17:00 +0000 Subject: iio: at91: fix dev var name in at91_adc_trigger_handler /opt/work/linux-2.6/drivers/iio/adc/at91_adc.c: In function 'at91_adc_trigger_handler': /opt/work/linux-2.6/drivers/iio/adc/at91_adc.c:83:22: error: 'indio_dev' undeclared (first use in this function) /opt/work/linux-2.6/drivers/iio/adc/at91_adc.c:83:22: note: each undeclared identifier is reported only once for each function it appears in Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Cc: linux-iio@vger.kernel.org Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index 03b8594..315bed1 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -80,7 +80,7 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p) *timestamp = pf->timestamp; } - iio_push_to_buffers(indio_dev, (u8 *)st->buffer); + iio_push_to_buffers(idev, (u8 *)st->buffer); iio_trigger_notify_done(idev->trig); -- cgit v0.10.2 From 9541cc39a6381b76dac30c8e05078eb0a543f113 Mon Sep 17 00:00:00 2001 From: Alexander Holler Date: Tue, 11 Dec 2012 18:21:00 +0000 Subject: iio: hid-sensors: respect CONFIG_IIO_TRIGGER Not much to say, without that change, hid-sensor-trigger will be always compiled if HID_SENSOR_IIO_COMMON is selected which fails if CONFIG_IIO_TRIGGER is not set because CONFIG_IIO_CONSUMERS_PER_TRIGGER will not be defined. Signed-off-by: Alexander Holler Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig index fe4bcd7..05e996f 100644 --- a/drivers/iio/accel/Kconfig +++ b/drivers/iio/accel/Kconfig @@ -8,6 +8,7 @@ config HID_SENSOR_ACCEL_3D select IIO_BUFFER select IIO_TRIGGERED_BUFFER select HID_SENSOR_IIO_COMMON + select HID_SENSOR_IIO_TRIGGER tristate "HID Accelerometers 3D" help Say yes here to build support for the HID SENSOR diff --git a/drivers/iio/common/hid-sensors/Kconfig b/drivers/iio/common/hid-sensors/Kconfig index ae10778..1178121 100644 --- a/drivers/iio/common/hid-sensors/Kconfig +++ b/drivers/iio/common/hid-sensors/Kconfig @@ -6,7 +6,7 @@ menu "Hid Sensor IIO Common" config HID_SENSOR_IIO_COMMON tristate "Common modules for all HID Sensor IIO drivers" depends on HID_SENSOR_HUB - select IIO_TRIGGER if IIO_BUFFER + select HID_SENSOR_IIO_TRIGGER if IIO_BUFFER help Say yes here to build support for HID sensor to use HID sensor common processing for attributes and IIO triggers. @@ -14,6 +14,17 @@ config HID_SENSOR_IIO_COMMON HID sensor drivers, this module contains processing for those attributes. +config HID_SENSOR_IIO_TRIGGER + tristate "Common module (trigger) for all HID Sensor IIO drivers" + depends on HID_SENSOR_HUB && HID_SENSOR_IIO_COMMON + select IIO_TRIGGER + help + Say yes here to build trigger support for HID sensors. + Triggers will be send if all requested attributes were read. + + If this driver is compiled as a module, it will be named + hid-sensor-trigger. + config HID_SENSOR_ENUM_BASE_QUIRKS bool "ENUM base quirks for HID Sensor IIO drivers" depends on HID_SENSOR_IIO_COMMON diff --git a/drivers/iio/common/hid-sensors/Makefile b/drivers/iio/common/hid-sensors/Makefile index 1f463e0..22e7c5a 100644 --- a/drivers/iio/common/hid-sensors/Makefile +++ b/drivers/iio/common/hid-sensors/Makefile @@ -3,4 +3,5 @@ # obj-$(CONFIG_HID_SENSOR_IIO_COMMON) += hid-sensor-iio-common.o -hid-sensor-iio-common-y := hid-sensor-attributes.o hid-sensor-trigger.o +obj-$(CONFIG_HID_SENSOR_IIO_TRIGGER) += hid-sensor-trigger.o +hid-sensor-iio-common-y := hid-sensor-attributes.o diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig index 48ed148..96b68f6 100644 --- a/drivers/iio/gyro/Kconfig +++ b/drivers/iio/gyro/Kconfig @@ -17,6 +17,7 @@ config HID_SENSOR_GYRO_3D select IIO_BUFFER select IIO_TRIGGERED_BUFFER select HID_SENSOR_IIO_COMMON + select HID_SENSOR_IIO_TRIGGER tristate "HID Gyroscope 3D" help Say yes here to build support for the HID SENSOR diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index 1763c9b..dbf80ab 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -47,6 +47,7 @@ config HID_SENSOR_ALS select IIO_BUFFER select IIO_TRIGGERED_BUFFER select HID_SENSOR_IIO_COMMON + select HID_SENSOR_IIO_TRIGGER tristate "HID ALS" help Say yes here to build support for the HID SENSOR diff --git a/drivers/iio/magnetometer/Kconfig b/drivers/iio/magnetometer/Kconfig index c1f0cdd..ff11d68 100644 --- a/drivers/iio/magnetometer/Kconfig +++ b/drivers/iio/magnetometer/Kconfig @@ -8,6 +8,7 @@ config HID_SENSOR_MAGNETOMETER_3D select IIO_BUFFER select IIO_TRIGGERED_BUFFER select HID_SENSOR_IIO_COMMON + select HID_SENSOR_IIO_TRIGGER tristate "HID Magenetometer 3D" help Say yes here to build support for the HID SENSOR -- cgit v0.10.2 From 36ce0c1c3ab7ea54fa6c2b3a0803c7ab0adcefbf Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 14 Dec 2012 07:47:00 +0000 Subject: iio: adc: ad7266: Don't set error code to st->vref_uv regulator_get_voltage() may return negative error code. Add error checking to avoid setting error code to st->vref_uv. Signed-off-by: Axel Lin Acked-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c index a6f4fc5..e36107d 100644 --- a/drivers/iio/adc/ad7266.c +++ b/drivers/iio/adc/ad7266.c @@ -411,7 +411,11 @@ static int __devinit ad7266_probe(struct spi_device *spi) if (ret) goto error_put_reg; - st->vref_uv = regulator_get_voltage(st->reg); + ret = regulator_get_voltage(st->reg); + if (ret < 0) + goto error_disable_reg; + + st->vref_uv = ret; } else { /* Use internal reference */ st->vref_uv = 2500000; -- cgit v0.10.2 From 272cc9c8b5d0dffe9fb03e6c0ab3da2fde9c20e9 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 14 Dec 2012 07:48:00 +0000 Subject: iio: dac: ad5380: Don't set error code to st->vref regulator_get_voltage() may return negative error code. Add error checking to avoid setting error code to st->vref_uv. Signed-off-by: Axel Lin Acked-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c index 14991ac..4aca189 100644 --- a/drivers/iio/dac/ad5380.c +++ b/drivers/iio/dac/ad5380.c @@ -406,7 +406,11 @@ static int __devinit ad5380_probe(struct device *dev, struct regmap *regmap, goto error_free_reg; } - st->vref = regulator_get_voltage(st->vref_reg); + ret = regulator_get_voltage(st->vref_reg); + if (ret < 0) + goto error_disable_reg; + + st->vref = ret; } else { st->vref = st->chip_info->int_vref; ctrl |= AD5380_CTRL_INT_VREF_EN; -- cgit v0.10.2 From 7e2dcc69824288916b55f90cd6db4992a0d95374 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 14 Dec 2012 07:55:00 +0000 Subject: iio: dac: ad5791: Don't set error code to [pos|neg]_voltage_uv regulator_get_voltage() may return negative error code. Don't set error code to to pos_voltage_uv and neg_voltage_uv. Signed-off-by: Axel Lin Acked-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c index 2bd2e37..6efe83e 100644 --- a/drivers/iio/dac/ad5791.c +++ b/drivers/iio/dac/ad5791.c @@ -365,7 +365,11 @@ static int __devinit ad5791_probe(struct spi_device *spi) if (ret) goto error_put_reg_pos; - pos_voltage_uv = regulator_get_voltage(st->reg_vdd); + ret = regulator_get_voltage(st->reg_vdd); + if (ret < 0) + goto error_disable_reg_pos; + + pos_voltage_uv = ret; } st->reg_vss = regulator_get(&spi->dev, "vss"); @@ -374,7 +378,11 @@ static int __devinit ad5791_probe(struct spi_device *spi) if (ret) goto error_put_reg_neg; - neg_voltage_uv = regulator_get_voltage(st->reg_vss); + ret = regulator_get_voltage(st->reg_vss); + if (ret < 0) + goto error_disable_reg_neg; + + neg_voltage_uv = ret; } st->pwr_down = true; @@ -428,6 +436,7 @@ error_put_reg_neg: if (!IS_ERR(st->reg_vss)) regulator_put(st->reg_vss); +error_disable_reg_pos: if (!IS_ERR(st->reg_vdd)) regulator_disable(st->reg_vdd); error_put_reg_pos: -- cgit v0.10.2 From 0ce2fdaa97c6a8d84e9fce3d920a45a493145623 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 14 Dec 2012 12:06:00 +0000 Subject: iio: dac: ad5504: Don't set error code to voltage_uv regulator_get_voltage() may return negative error code. Add error checking to avoid setting error code to voltage_uv. Signed-off-by: Axel Lin Acked-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c index 242bdc7..7f7c026 100644 --- a/drivers/iio/dac/ad5504.c +++ b/drivers/iio/dac/ad5504.c @@ -296,7 +296,11 @@ static int __devinit ad5504_probe(struct spi_device *spi) if (ret) goto error_put_reg; - voltage_uv = regulator_get_voltage(reg); + ret = regulator_get_voltage(reg); + if (ret < 0) + goto error_disable_reg; + + voltage_uv = ret; } spi_set_drvdata(spi, indio_dev); -- cgit v0.10.2 From 8434e7856551015650f62afa48e8f9e9b4bf80f2 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 14 Dec 2012 12:07:00 +0000 Subject: iio: dac: ad5624r_spi: Don't set error code to voltage_uv regulator_get_voltage() may return negative error code. Add error checking to avoid setting error code to voltage_uv. Signed-off-by: Axel Lin Acked-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/dac/ad5624r_spi.c b/drivers/iio/dac/ad5624r_spi.c index 6a7d6a4..14ea3db 100644 --- a/drivers/iio/dac/ad5624r_spi.c +++ b/drivers/iio/dac/ad5624r_spi.c @@ -238,7 +238,11 @@ static int __devinit ad5624r_probe(struct spi_device *spi) if (ret) goto error_put_reg; - voltage_uv = regulator_get_voltage(st->reg); + ret = regulator_get_voltage(st->reg); + if (ret < 0) + goto error_disable_reg; + + voltage_uv = ret; } spi_set_drvdata(spi, indio_dev); -- cgit v0.10.2 From 359570ad3fcfcc3a3031b3a5e01bfb616233eca0 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 14 Dec 2012 12:08:00 +0000 Subject: iio: dac: ad5686: Don't set error code to voltage_uv regulator_get_voltage() may return negative error code. Add error checking to avoid setting error code to voltage_uv. Signed-off-by: Axel Lin Acked-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c index bc92ff9..01eb1d0 100644 --- a/drivers/iio/dac/ad5686.c +++ b/drivers/iio/dac/ad5686.c @@ -332,7 +332,11 @@ static int __devinit ad5686_probe(struct spi_device *spi) if (ret) goto error_put_reg; - voltage_uv = regulator_get_voltage(st->reg); + ret = regulator_get_voltage(st->reg); + if (ret < 0) + goto error_disable_reg; + + voltage_uv = ret; } st->chip_info = -- cgit v0.10.2 From 13e57ee2056221296f1926d49d00edd224058bea Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 18 Dec 2012 03:33:00 +0000 Subject: iio: dac: ad5446: Don't set error code to voltage_uv regulator_get_voltage() may return negative error code. Add error checking to avoid setting error code to voltage_uv. Signed-off-by: Axel Lin Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c index 3310cbb..ecb6395 100644 --- a/drivers/iio/dac/ad5446.c +++ b/drivers/iio/dac/ad5446.c @@ -226,7 +226,11 @@ static int __devinit ad5446_probe(struct device *dev, const char *name, if (ret) goto error_put_reg; - voltage_uv = regulator_get_voltage(reg); + ret = regulator_get_voltage(reg); + if (ret < 0) + goto error_disable_reg; + + voltage_uv = ret; } indio_dev = iio_device_alloc(sizeof(*st)); -- cgit v0.10.2 From 678fb42e2b2c815c3475884017aac4da22124d0d Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Mon, 24 Dec 2012 06:24:00 +0000 Subject: iio: (max1363) Fix probe error path Instantiating the driver with no available regulator results in: [39711.686393] i2c i2c-7: new_device: Instantiated device max1139 at 0x35 [39711.688687] BUG: unable to handle kernel paging request at fffffffffffffe13 [39711.688734] IP: [] regulator_disable+0x1b/0x80 [39711.688788] PGD 1c0e067 PUD 1c0f067 PMD 0 [39711.688835] Oops: 0000 [#1] SMP Caused by bad probe error path. Fix it. Driver should also not attempt to free the interrupt in its error path if none was allocated. Fix that problem as well. Finally, testing if the regulator was allocated is not necessary in the remove function, since the probe function bails out if this is the case. Remove that check. Signed-off-by: Guenter Roeck Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c index 1e84b5b..31f3485 100644 --- a/drivers/iio/adc/max1363.c +++ b/drivers/iio/adc/max1363.c @@ -1605,19 +1605,20 @@ static int __devinit max1363_probe(struct i2c_client *client, return 0; error_free_irq: - free_irq(st->client->irq, indio_dev); + if (client->irq) + free_irq(st->client->irq, indio_dev); error_uninit_buffer: iio_buffer_unregister(indio_dev); error_cleanup_buffer: max1363_buffer_cleanup(indio_dev); error_free_available_scan_masks: kfree(indio_dev->available_scan_masks); -error_unregister_map: - iio_map_array_unregister(indio_dev, client->dev.platform_data); error_disable_reg: regulator_disable(st->reg); error_put_reg: regulator_put(st->reg); +error_unregister_map: + iio_map_array_unregister(indio_dev, client->dev.platform_data); error_free_device: iio_device_free(indio_dev); error_out: @@ -1635,10 +1636,8 @@ static int __devexit max1363_remove(struct i2c_client *client) iio_buffer_unregister(indio_dev); max1363_buffer_cleanup(indio_dev); kfree(indio_dev->available_scan_masks); - if (!IS_ERR(st->reg)) { - regulator_disable(st->reg); - regulator_put(st->reg); - } + regulator_disable(st->reg); + regulator_put(st->reg); iio_map_array_unregister(indio_dev, client->dev.platform_data); iio_device_free(indio_dev); -- cgit v0.10.2 From 865df9cb122d9e5ecbbb7056f2c9c64933bf8dd0 Mon Sep 17 00:00:00 2001 From: Chuansheng Liu Date: Wed, 26 Dec 2012 00:56:05 +0800 Subject: ASoC: core: fix the memory leak in case of device_add() failure After called device_initialize(), even device_add() returns error, we still need use the put_device() to release the reference to call rtd_release(), which will do the free() action. Signed-off-by: liu chuansheng Signed-off-by: Mark Brown diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 29046e7..f7551c1 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1255,6 +1255,8 @@ static int soc_post_component_init(struct snd_soc_card *card, INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients); ret = device_add(rtd->dev); if (ret < 0) { + /* calling put_device() here to free the rtd->dev */ + put_device(rtd->dev); dev_err(card->dev, "ASoC: failed to register runtime device: %d\n", ret); return ret; -- cgit v0.10.2 From d3bf1561253383a3dbcc40afdb2b039d56093a3e Mon Sep 17 00:00:00 2001 From: Chuansheng Liu Date: Wed, 26 Dec 2012 00:57:32 +0800 Subject: ASoC: core: fix the memory leak in case of remove_aux_dev() When probing aux_dev, initializing is as below: device_initialize() device_add() So when remove aux_dev, we need do as below: device_del() device_put() Otherwise, the rtd_release() will not be called. So here using device_unregister() to replace device_del(), like the action in soc_remove_link_dais(). Signed-off-by: liu chuansheng Signed-off-by: Mark Brown diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index f7551c1..2370063 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1556,7 +1556,7 @@ static void soc_remove_aux_dev(struct snd_soc_card *card, int num) /* unregister the rtd device */ if (rtd->dev_registered) { device_remove_file(rtd->dev, &dev_attr_codec_reg); - device_del(rtd->dev); + device_unregister(rtd->dev); rtd->dev_registered = 0; } -- cgit v0.10.2 From 4e4d78f1c1a08f085a1972b9af92960af70a07c6 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 28 Dec 2012 22:38:51 -0800 Subject: sparc: Hook up finit_module syscall. Signed-off-by: David S. Miller diff --git a/arch/sparc/include/uapi/asm/unistd.h b/arch/sparc/include/uapi/asm/unistd.h index cac719d..62ced58 100644 --- a/arch/sparc/include/uapi/asm/unistd.h +++ b/arch/sparc/include/uapi/asm/unistd.h @@ -407,8 +407,9 @@ #define __NR_process_vm_writev 339 #define __NR_kern_features 340 #define __NR_kcmp 341 +#define __NR_finit_module 342 -#define NR_syscalls 342 +#define NR_syscalls 343 /* Bitmask values returned from kern_features system call. */ #define KERN_FEATURE_MIXED_MODE_STACK 0x00000001 diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S index 5147f57..6ac43c3 100644 --- a/arch/sparc/kernel/systbls_32.S +++ b/arch/sparc/kernel/systbls_32.S @@ -85,4 +85,4 @@ sys_call_table: /*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init /*330*/ .long sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime /*335*/ .long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev -/*340*/ .long sys_ni_syscall, sys_kcmp +/*340*/ .long sys_ni_syscall, sys_kcmp, sys_finit_module diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index cdbd9b8..1009ecb 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -86,7 +86,7 @@ sys_call_table32: .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open, compat_sys_recvmmsg, sys_fanotify_init /*330*/ .word sys32_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime .word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev -/*340*/ .word sys_kern_features, sys_kcmp +/*340*/ .word sys_kern_features, sys_kcmp, sys_finit_module #endif /* CONFIG_COMPAT */ @@ -164,4 +164,4 @@ sys_call_table: .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init /*330*/ .word sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime .word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev -/*340*/ .word sys_kern_features, sys_kcmp +/*340*/ .word sys_kern_features, sys_kcmp, sys_finit_module -- cgit v0.10.2 From 1b8d52e63c53fd271846a56b7b1e3f622fd6a0a8 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 4 Dec 2012 13:14:24 +0900 Subject: ASoC: wm5102: Improve speaker enable performance Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/wm5102.c b/sound/soc/codecs/wm5102.c index 688ade0..7a9048d 100644 --- a/sound/soc/codecs/wm5102.c +++ b/sound/soc/codecs/wm5102.c @@ -36,6 +36,9 @@ struct wm5102_priv { struct arizona_priv core; struct arizona_fll fll[2]; + + unsigned int spk_ena:2; + unsigned int spk_ena_pending:1; }; static DECLARE_TLV_DB_SCALE(ana_tlv, 0, 100, 0); @@ -787,6 +790,47 @@ ARIZONA_MIXER_CONTROLS("AIF3TX1", ARIZONA_AIF3TX1MIX_INPUT_1_SOURCE), ARIZONA_MIXER_CONTROLS("AIF3TX2", ARIZONA_AIF3TX2MIX_INPUT_1_SOURCE), }; +static int wm5102_spk_ev(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, + int event) +{ + struct snd_soc_codec *codec = w->codec; + struct arizona *arizona = dev_get_drvdata(codec->dev->parent); + struct wm5102_priv *wm5102 = snd_soc_codec_get_drvdata(codec); + + if (arizona->rev < 1) + return 0; + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + if (!wm5102->spk_ena) { + snd_soc_write(codec, 0x4f5, 0x25a); + wm5102->spk_ena_pending = true; + } + break; + case SND_SOC_DAPM_POST_PMU: + if (wm5102->spk_ena_pending) { + msleep(75); + snd_soc_write(codec, 0x4f5, 0xda); + wm5102->spk_ena_pending = false; + wm5102->spk_ena++; + } + break; + case SND_SOC_DAPM_PRE_PMD: + wm5102->spk_ena--; + if (!wm5102->spk_ena) + snd_soc_write(codec, 0x4f5, 0x25a); + break; + case SND_SOC_DAPM_POST_PMD: + if (!wm5102->spk_ena) + snd_soc_write(codec, 0x4f5, 0x0da); + break; + } + + return 0; +} + + ARIZONA_MIXER_ENUMS(EQ1, ARIZONA_EQ1MIX_INPUT_1_SOURCE); ARIZONA_MIXER_ENUMS(EQ2, ARIZONA_EQ2MIX_INPUT_1_SOURCE); ARIZONA_MIXER_ENUMS(EQ3, ARIZONA_EQ3MIX_INPUT_1_SOURCE); @@ -1034,10 +1078,10 @@ SND_SOC_DAPM_PGA_E("OUT3L", ARIZONA_OUTPUT_ENABLES_1, ARIZONA_OUT3L_ENA_SHIFT, 0, NULL, 0, arizona_out_ev, SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_PGA_E("OUT4L", ARIZONA_OUTPUT_ENABLES_1, - ARIZONA_OUT4L_ENA_SHIFT, 0, NULL, 0, arizona_out_ev, + ARIZONA_OUT4L_ENA_SHIFT, 0, NULL, 0, wm5102_spk_ev, SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_PGA_E("OUT4R", ARIZONA_OUTPUT_ENABLES_1, - ARIZONA_OUT4R_ENA_SHIFT, 0, NULL, 0, arizona_out_ev, + ARIZONA_OUT4R_ENA_SHIFT, 0, NULL, 0, wm5102_spk_ev, SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_PGA_E("OUT5L", ARIZONA_OUTPUT_ENABLES_1, ARIZONA_OUT5L_ENA_SHIFT, 0, NULL, 0, arizona_out_ev, -- cgit v0.10.2 From 34bcf71502413f8903ade93746f2d0f04b937a78 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Tue, 11 Dec 2012 10:48:23 +0100 Subject: mac80211: fix ibss scanning Do not scan on no-IBSS and disabled channels in IBSS mode. Doing this can trigger Microcode errors on iwlwifi and iwlegacy drivers. Also rename ieee80211_request_internal_scan() function since it is only used in IBSS mode and simplify calling it from ieee80211_sta_find_ibss(). This patch should address: https://bugzilla.redhat.com/show_bug.cgi?id=883414 https://bugzilla.kernel.org/show_bug.cgi?id=49411 Reported-by: Jesse Kahtava Reported-by: Mikko Rapeli Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka Signed-off-by: Johannes Berg diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 8881fc7..6b7644e 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -703,8 +703,8 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata) sdata_info(sdata, "No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge)\n"); - ieee80211_request_internal_scan(sdata, - ifibss->ssid, ifibss->ssid_len, NULL); + ieee80211_request_ibss_scan(sdata, ifibss->ssid, ifibss->ssid_len, + NULL); } static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata) @@ -802,9 +802,8 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) IEEE80211_SCAN_INTERVAL)) { sdata_info(sdata, "Trigger new scan to find an IBSS to join\n"); - ieee80211_request_internal_scan(sdata, - ifibss->ssid, ifibss->ssid_len, - ifibss->fixed_channel ? ifibss->channel : NULL); + ieee80211_request_ibss_scan(sdata, ifibss->ssid, + ifibss->ssid_len, chan); } else { int interval = IEEE80211_SCAN_INTERVAL; diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 42d0d02..112bb61 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1329,9 +1329,9 @@ void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, /* scan/BSS handling */ void ieee80211_scan_work(struct work_struct *work); -int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata, - const u8 *ssid, u8 ssid_len, - struct ieee80211_channel *chan); +int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, + const u8 *ssid, u8 ssid_len, + struct ieee80211_channel *chan); int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, struct cfg80211_scan_request *req); void ieee80211_scan_cancel(struct ieee80211_local *local); diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 8ed83dc..de3532d 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -832,9 +832,9 @@ int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, return res; } -int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata, - const u8 *ssid, u8 ssid_len, - struct ieee80211_channel *chan) +int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, + const u8 *ssid, u8 ssid_len, + struct ieee80211_channel *chan) { struct ieee80211_local *local = sdata->local; int ret = -EBUSY; @@ -848,22 +848,36 @@ int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata, /* fill internal scan request */ if (!chan) { - int i, nchan = 0; + int i, max_n; + int n_ch = 0; for (band = 0; band < IEEE80211_NUM_BANDS; band++) { if (!local->hw.wiphy->bands[band]) continue; - for (i = 0; - i < local->hw.wiphy->bands[band]->n_channels; - i++) { - local->int_scan_req->channels[nchan] = + + max_n = local->hw.wiphy->bands[band]->n_channels; + for (i = 0; i < max_n; i++) { + struct ieee80211_channel *tmp_ch = &local->hw.wiphy->bands[band]->channels[i]; - nchan++; + + if (tmp_ch->flags & (IEEE80211_CHAN_NO_IBSS | + IEEE80211_CHAN_DISABLED)) + continue; + + local->int_scan_req->channels[n_ch] = tmp_ch; + n_ch++; } } - local->int_scan_req->n_channels = nchan; + if (WARN_ON_ONCE(n_ch == 0)) + goto unlock; + + local->int_scan_req->n_channels = n_ch; } else { + if (WARN_ON_ONCE(chan->flags & (IEEE80211_CHAN_NO_IBSS | + IEEE80211_CHAN_DISABLED))) + goto unlock; + local->int_scan_req->channels[0] = chan; local->int_scan_req->n_channels = 1; } -- cgit v0.10.2 From 2d4072a5470621c552f46d51cd54965aeb033893 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 10 Dec 2012 20:02:34 +0100 Subject: mac80211: flush AP_VLAN stations when tearing down the BSS AP Signed-off-by: Felix Fietkau [change to flush stations with AP flush in second loop] Signed-off-by: Johannes Berg diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 5c61677..47e0aca 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1009,6 +1009,8 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) if (old_probe_resp) kfree_rcu(old_probe_resp, rcu_head); + list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) + sta_info_flush(local, vlan); sta_info_flush(local, sdata); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); -- cgit v0.10.2 From 4d76d21bd700fcf72a030ad75c71c816707039b8 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 11 Dec 2012 20:38:41 +0100 Subject: mac80211: assign VLAN channel contexts Make AP_VLAN type interfaces track the AP master channel context so they have one assigned for the various lookups. Don't give them their own refcount etc. since they're just slaves to the AP master. Signed-off-by: Johannes Berg diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 53f0312..80e5552 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -4,6 +4,7 @@ #include #include +#include #include #include "ieee80211_i.h" #include "driver-ops.h" @@ -197,6 +198,15 @@ static void __ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata) ctx = container_of(conf, struct ieee80211_chanctx, conf); + if (sdata->vif.type == NL80211_IFTYPE_AP) { + struct ieee80211_sub_if_data *vlan; + + /* for the VLAN list */ + ASSERT_RTNL(); + list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) + rcu_assign_pointer(vlan->vif.chanctx_conf, NULL); + } + ieee80211_unassign_vif_chanctx(sdata, ctx); if (ctx->refcount == 0) ieee80211_free_chanctx(local, ctx); @@ -316,6 +326,15 @@ int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, goto out; } + if (sdata->vif.type == NL80211_IFTYPE_AP) { + struct ieee80211_sub_if_data *vlan; + + /* for the VLAN list */ + ASSERT_RTNL(); + list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) + rcu_assign_pointer(vlan->vif.chanctx_conf, &ctx->conf); + } + ieee80211_recalc_smps_chanctx(local, ctx); out: mutex_unlock(&local->chanctx_mtx); @@ -331,6 +350,25 @@ void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata) mutex_unlock(&sdata->local->chanctx_mtx); } +void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_sub_if_data *ap; + struct ieee80211_chanctx_conf *conf; + + if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_AP_VLAN || !sdata->bss)) + return; + + ap = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap); + + mutex_lock(&local->chanctx_mtx); + + conf = rcu_dereference_protected(ap->vif.chanctx_conf, + lockdep_is_held(&local->chanctx_mtx)); + rcu_assign_pointer(sdata->vif.chanctx_conf, conf); + mutex_unlock(&local->chanctx_mtx); +} + void ieee80211_iter_chan_contexts_atomic( struct ieee80211_hw *hw, void (*iter)(struct ieee80211_hw *hw, diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 112bb61..28fc987 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1628,6 +1628,7 @@ ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, const struct cfg80211_chan_def *chandef, enum ieee80211_chanctx_mode mode); void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata); +void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata); void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, struct ieee80211_chanctx *chanctx); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 09a80b5..54fb7f9 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -586,11 +586,13 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up) switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: - /* no need to tell driver, but set carrier */ - if (rtnl_dereference(sdata->bss->beacon)) + /* no need to tell driver, but set carrier and chanctx */ + if (rtnl_dereference(sdata->bss->beacon)) { + ieee80211_vif_vlan_copy_chanctx(sdata); netif_carrier_on(dev); - else + } else { netif_carrier_off(dev); + } break; case NL80211_IFTYPE_MONITOR: if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) { @@ -839,6 +841,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: list_del(&sdata->u.vlan.list); + rcu_assign_pointer(sdata->vif.chanctx_conf, NULL); /* no need to tell driver */ break; case NL80211_IFTYPE_MONITOR: -- cgit v0.10.2 From b7cfcd113ac2a1e6b02afc7d283295729fc178a9 Mon Sep 17 00:00:00 2001 From: Thomas Pedersen Date: Mon, 17 Dec 2012 18:41:57 -0800 Subject: mac80211: RMC buckets are just list heads The array of rmc_entrys is redundant since only the list_head is used. Make this an array of list_heads instead and save ~6k per vif at runtime :D Signed-off-by: Thomas Pedersen Signed-off-by: Johannes Berg diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 1bf03f9..649ad51 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -163,7 +163,7 @@ int mesh_rmc_init(struct ieee80211_sub_if_data *sdata) return -ENOMEM; sdata->u.mesh.rmc->idx_mask = RMC_BUCKETS - 1; for (i = 0; i < RMC_BUCKETS; i++) - INIT_LIST_HEAD(&sdata->u.mesh.rmc->bucket[i].list); + INIT_LIST_HEAD(&sdata->u.mesh.rmc->bucket[i]); return 0; } @@ -177,7 +177,7 @@ void mesh_rmc_free(struct ieee80211_sub_if_data *sdata) return; for (i = 0; i < RMC_BUCKETS; i++) - list_for_each_entry_safe(p, n, &rmc->bucket[i].list, list) { + list_for_each_entry_safe(p, n, &rmc->bucket[i], list) { list_del(&p->list); kmem_cache_free(rm_cache, p); } @@ -210,7 +210,7 @@ int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr, /* Don't care about endianness since only match matters */ memcpy(&seqnum, &mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum)); idx = le32_to_cpu(mesh_hdr->seqnum) & rmc->idx_mask; - list_for_each_entry_safe(p, n, &rmc->bucket[idx].list, list) { + list_for_each_entry_safe(p, n, &rmc->bucket[idx], list) { ++entries; if (time_after(jiffies, p->exp_time) || (entries == RMC_QUEUE_MAX_LEN)) { @@ -229,7 +229,7 @@ int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr, p->seqnum = seqnum; p->exp_time = jiffies + RMC_TIMEOUT; memcpy(p->sa, sa, ETH_ALEN); - list_add(&p->list, &rmc->bucket[idx].list); + list_add(&p->list, &rmc->bucket[idx]); return 0; } diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 7c9215f..84c28c6 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -184,7 +184,7 @@ struct rmc_entry { }; struct mesh_rmc { - struct rmc_entry bucket[RMC_BUCKETS]; + struct list_head bucket[RMC_BUCKETS]; u32 idx_mask; }; -- cgit v0.10.2 From 97f97b1f5fe0878b35c8e314f98591771696321b Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 13 Dec 2012 22:54:58 +0100 Subject: mac80211: fix station destruction in AP/mesh modes Unfortunately, commit b22cfcfcae5b, intended to speed up roaming by avoiding the synchronize_rcu() broke AP/mesh modes as it moved some code into that work item that will still call into the driver at a time where it's no longer expected to handle this: after the AP or mesh has been stopped. To fix this problem remove the per-station work struct, maintain a station cleanup list instead and flush this list when stations are flushed. To keep this patch smaller for stable, do this when the stations are flushed (sta_info_flush()). This unfortunately brings back the original roaming delay; I'll fix that again in a separate patch. Also, Ben reported that the original commit could sometimes (with many interfaces) cause long delays when an interface is set down, due to blocking on flush_workqueue(). Since we now maintain the cleanup list, this particular change of the original patch can be reverted. Cc: stable@vger.kernel.org [3.7] Reported-by: Ben Greear Tested-by: Ben Greear Signed-off-by: Johannes Berg diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 28fc987..2fcd274 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -773,6 +773,10 @@ struct ieee80211_sub_if_data { u32 mntr_flags; } u; + spinlock_t cleanup_stations_lock; + struct list_head cleanup_stations; + struct work_struct cleanup_stations_wk; + #ifdef CONFIG_MAC80211_DEBUGFS struct { struct dentry *dir; diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 54fb7f9..0f2a9f9 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -868,20 +868,11 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, cancel_work_sync(&sdata->work); /* * When we get here, the interface is marked down. - * Call rcu_barrier() to wait both for the RX path + * Call synchronize_rcu() to wait for the RX path * should it be using the interface and enqueuing - * frames at this very time on another CPU, and - * for the sta free call_rcu callbacks. + * frames at this very time on another CPU. */ - rcu_barrier(); - - /* - * free_sta_rcu() enqueues a work for the actual - * sta cleanup, so we need to flush it while - * sdata is still valid. - */ - flush_workqueue(local->workqueue); - + synchronize_rcu(); skb_queue_purge(&sdata->skb_queue); /* @@ -1501,6 +1492,15 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local, mutex_unlock(&local->iflist_mtx); } +static void ieee80211_cleanup_sdata_stas_wk(struct work_struct *wk) +{ + struct ieee80211_sub_if_data *sdata; + + sdata = container_of(wk, struct ieee80211_sub_if_data, cleanup_stations_wk); + + ieee80211_cleanup_sdata_stas(sdata); +} + int ieee80211_if_add(struct ieee80211_local *local, const char *name, struct wireless_dev **new_wdev, enum nl80211_iftype type, struct vif_params *params) @@ -1576,6 +1576,10 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, INIT_LIST_HEAD(&sdata->key_list); + spin_lock_init(&sdata->cleanup_stations_lock); + INIT_LIST_HEAD(&sdata->cleanup_stations); + INIT_WORK(&sdata->cleanup_stations_wk, ieee80211_cleanup_sdata_stas_wk); + for (i = 0; i < IEEE80211_NUM_BANDS; i++) { struct ieee80211_supported_band *sband; sband = local->hw.wiphy->bands[i]; diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index f3e5025..8bbd3b0 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -91,9 +91,8 @@ static int sta_info_hash_del(struct ieee80211_local *local, return -ENOENT; } -static void free_sta_work(struct work_struct *wk) +static void cleanup_single_sta(struct sta_info *sta) { - struct sta_info *sta = container_of(wk, struct sta_info, free_sta_wk); int ac, i; struct tid_ampdu_tx *tid_tx; struct ieee80211_sub_if_data *sdata = sta->sdata; @@ -153,11 +152,35 @@ static void free_sta_work(struct work_struct *wk) sta_info_free(local, sta); } +void ieee80211_cleanup_sdata_stas(struct ieee80211_sub_if_data *sdata) +{ + struct sta_info *sta; + + spin_lock_bh(&sdata->cleanup_stations_lock); + while (!list_empty(&sdata->cleanup_stations)) { + sta = list_first_entry(&sdata->cleanup_stations, + struct sta_info, list); + list_del(&sta->list); + spin_unlock_bh(&sdata->cleanup_stations_lock); + + cleanup_single_sta(sta); + + spin_lock_bh(&sdata->cleanup_stations_lock); + } + + spin_unlock_bh(&sdata->cleanup_stations_lock); +} + static void free_sta_rcu(struct rcu_head *h) { struct sta_info *sta = container_of(h, struct sta_info, rcu_head); + struct ieee80211_sub_if_data *sdata = sta->sdata; - ieee80211_queue_work(&sta->local->hw, &sta->free_sta_wk); + spin_lock(&sdata->cleanup_stations_lock); + list_add_tail(&sta->list, &sdata->cleanup_stations); + spin_unlock(&sdata->cleanup_stations_lock); + + ieee80211_queue_work(&sdata->local->hw, &sdata->cleanup_stations_wk); } /* protected by RCU */ @@ -310,7 +333,6 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, spin_lock_init(&sta->lock); INIT_WORK(&sta->drv_unblock_wk, sta_unblock); - INIT_WORK(&sta->free_sta_wk, free_sta_work); INIT_WORK(&sta->ampdu_mlme.work, ieee80211_ba_session_work); mutex_init(&sta->ampdu_mlme.mtx); @@ -891,6 +913,20 @@ int sta_info_flush(struct ieee80211_local *local, } mutex_unlock(&local->sta_mtx); + rcu_barrier(); + + if (sdata) { + ieee80211_cleanup_sdata_stas(sdata); + cancel_work_sync(&sdata->cleanup_stations_wk); + } else { + mutex_lock(&local->iflist_mtx); + list_for_each_entry(sdata, &local->interfaces, list) { + ieee80211_cleanup_sdata_stas(sdata); + cancel_work_sync(&sdata->cleanup_stations_wk); + } + mutex_unlock(&local->iflist_mtx); + } + return ret; } diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 1489bca..37c1889 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -299,7 +299,6 @@ struct sta_info { spinlock_t lock; struct work_struct drv_unblock_wk; - struct work_struct free_sta_wk; u16 listen_interval; @@ -563,4 +562,6 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta); void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta); void ieee80211_sta_ps_deliver_uapsd(struct sta_info *sta); +void ieee80211_cleanup_sdata_stas(struct ieee80211_sub_if_data *sdata); + #endif /* STA_INFO_H */ -- cgit v0.10.2 From a56f992cdabc63f56b4b142885deebebf936ff76 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 13 Dec 2012 23:08:52 +0100 Subject: mac80211: use del_timer_sync for final sta cleanup timer deletion This is a very old bug, but there's nothing that prevents the timer from running while the module is being removed when we only do del_timer() instead of del_timer_sync(). The timer should normally not be running at this point, but it's not clearly impossible (or we could just remove this.) Cc: stable@vger.kernel.org Tested-by: Ben Greear Signed-off-by: Johannes Berg diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 8bbd3b0..ca9fde1 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -884,7 +884,7 @@ void sta_info_init(struct ieee80211_local *local) void sta_info_stop(struct ieee80211_local *local) { - del_timer(&local->sta_cleanup); + del_timer_sync(&local->sta_cleanup); sta_info_flush(local, NULL); } -- cgit v0.10.2 From 826262c3d23743cb032a9e1a65a0f9be75091a5e Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 10 Dec 2012 16:38:14 +0200 Subject: mac80211: fix dtim_period in hidden SSID AP association When AP's SSID is hidden the BSS can appear several times in cfg80211's BSS list: once with a zero-length SSID that comes from the beacon, and once for each SSID from probe reponses. Since the mac80211 stores its data in ieee80211_bss which is embedded into cfg80211_bss, mac80211's data will be duplicated too. This becomes a problem when a driver needs the dtim_period since this data exists only in the beacon's instance in cfg80211 bss table which isn't the instance that is used when associating. Remove the DTIM period from the BSS table and track it explicitly to avoid this problem. Cc: stable@vger.kernel.org Tested-by: Efi Tubul Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 2fcd274..8563b9a 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -92,8 +92,6 @@ struct ieee80211_bss { u32 device_ts; - u8 dtim_period; - bool wmm_used; bool uapsd_supported; @@ -140,7 +138,6 @@ enum ieee80211_bss_corrupt_data_flags { /** * enum ieee80211_valid_data_flags - BSS valid data flags - * @IEEE80211_BSS_VALID_DTIM: DTIM data was gathered from non-corrupt IE * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE @@ -151,7 +148,6 @@ enum ieee80211_bss_corrupt_data_flags { * beacon/probe response. */ enum ieee80211_bss_valid_data_flags { - IEEE80211_BSS_VALID_DTIM = BIT(0), IEEE80211_BSS_VALID_WMM = BIT(1), IEEE80211_BSS_VALID_RATES = BIT(2), IEEE80211_BSS_VALID_ERP = BIT(3) @@ -440,6 +436,7 @@ struct ieee80211_if_managed { unsigned long timers_running; /* used for quiesce/restart */ bool powersave; /* powersave requested for this iface */ bool broken_ap; /* AP is broken -- turn off powersave */ + u8 dtim_period; enum ieee80211_smps_mode req_smps, /* requested smps mode */ driver_smps_mode; /* smps mode request */ diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 7753a9c..a355292 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1074,12 +1074,8 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) if (beaconint_us > latency) { local->ps_sdata = NULL; } else { - struct ieee80211_bss *bss; int maxslp = 1; - u8 dtimper; - - bss = (void *)found->u.mgd.associated->priv; - dtimper = bss->dtim_period; + u8 dtimper = found->u.mgd.dtim_period; /* If the TIM IE is invalid, pretend the value is 1 */ if (!dtimper) @@ -1410,10 +1406,17 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, ieee80211_led_assoc(local, 1); - if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) - bss_conf->dtim_period = bss->dtim_period; - else + if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) { + /* + * If the AP is buggy we may get here with no DTIM period + * known, so assume it's 1 which is the only safe assumption + * in that case, although if the TIM IE is broken powersave + * probably just won't work at all. + */ + bss_conf->dtim_period = sdata->u.mgd.dtim_period ?: 1; + } else { bss_conf->dtim_period = 0; + } bss_conf->assoc = 1; @@ -1562,6 +1565,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, sdata->u.mgd.timers_running = 0; + sdata->vif.bss_conf.dtim_period = 0; + ifmgd->flags = 0; ieee80211_vif_release_channel(sdata); } @@ -2373,11 +2378,18 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, struct ieee80211_channel *channel; bool need_ps = false; - if (sdata->u.mgd.associated && - ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid)) { - bss = (void *)sdata->u.mgd.associated->priv; + if ((sdata->u.mgd.associated && + ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid)) || + (sdata->u.mgd.assoc_data && + ether_addr_equal(mgmt->bssid, + sdata->u.mgd.assoc_data->bss->bssid))) { /* not previously set so we may need to recalc */ - need_ps = !bss->dtim_period; + need_ps = sdata->u.mgd.associated && !sdata->u.mgd.dtim_period; + + if (elems->tim && !elems->parse_error) { + struct ieee80211_tim_ie *tim_ie = elems->tim; + sdata->u.mgd.dtim_period = tim_ie->dtim_period; + } } if (elems->ds_params && elems->ds_params_len == 1) @@ -3896,20 +3908,41 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, /* kick off associate process */ ifmgd->assoc_data = assoc_data; + ifmgd->dtim_period = 0; err = ieee80211_prep_connection(sdata, req->bss, true); if (err) goto err_clear; - if (!bss->dtim_period && - sdata->local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) { - /* - * Wait up to one beacon interval ... - * should this be more if we miss one? - */ - sdata_info(sdata, "waiting for beacon from %pM\n", - ifmgd->bssid); - assoc_data->timeout = TU_TO_EXP_TIME(req->bss->beacon_interval); + if (sdata->local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) { + const struct cfg80211_bss_ies *beacon_ies; + + rcu_read_lock(); + beacon_ies = rcu_dereference(req->bss->beacon_ies); + if (!beacon_ies) { + /* + * Wait up to one beacon interval ... + * should this be more if we miss one? + */ + sdata_info(sdata, "waiting for beacon from %pM\n", + ifmgd->bssid); + assoc_data->timeout = + TU_TO_EXP_TIME(req->bss->beacon_interval); + } else { + const u8 *tim_ie = cfg80211_find_ie(WLAN_EID_TIM, + beacon_ies->data, + beacon_ies->len); + if (tim_ie && tim_ie[1] >= + sizeof(struct ieee80211_tim_ie)) { + const struct ieee80211_tim_ie *tim; + tim = (void *)(tim_ie + 2); + ifmgd->dtim_period = tim->dtim_period; + } + assoc_data->have_beacon = true; + assoc_data->sent_assoc = false; + assoc_data->timeout = jiffies; + } + rcu_read_unlock(); } else { assoc_data->have_beacon = true; assoc_data->sent_assoc = false; diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index de3532d..d59fc68 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -113,18 +113,6 @@ ieee80211_bss_info_update(struct ieee80211_local *local, bss->valid_data |= IEEE80211_BSS_VALID_ERP; } - if (elems->tim && (!elems->parse_error || - !(bss->valid_data & IEEE80211_BSS_VALID_DTIM))) { - struct ieee80211_tim_ie *tim_ie = elems->tim; - bss->dtim_period = tim_ie->dtim_period; - if (!elems->parse_error) - bss->valid_data |= IEEE80211_BSS_VALID_DTIM; - } - - /* If the beacon had no TIM IE, or it was invalid, use 1 */ - if (beacon && !bss->dtim_period) - bss->dtim_period = 1; - /* replace old supported rates if we get new values */ if (!elems->parse_error || !(bss->valid_data & IEEE80211_BSS_VALID_RATES)) { -- cgit v0.10.2 From 09b1426e7fcec510aba55a761da5004e47a11ce3 Mon Sep 17 00:00:00 2001 From: Chaitanya Date: Fri, 21 Dec 2012 17:15:17 +0530 Subject: mac80211: fix maximum MTU The maximum MTU shouldn't take the headers into account, the maximum MSDU size is exactly the maximum MTU. Signed-off-by: T Krishna Chaitanya Signed-off-by: Johannes Berg diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 0f2a9f9..8be854e 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -207,17 +207,8 @@ void ieee80211_recalc_idle(struct ieee80211_local *local) static int ieee80211_change_mtu(struct net_device *dev, int new_mtu) { - int meshhdrlen; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - meshhdrlen = (sdata->vif.type == NL80211_IFTYPE_MESH_POINT) ? 5 : 0; - - /* FIX: what would be proper limits for MTU? - * This interface uses 802.3 frames. */ - if (new_mtu < 256 || - new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6 - meshhdrlen) { + if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN) return -EINVAL; - } dev->mtu = new_mtu; return 0; -- cgit v0.10.2 From 0384618a79ccfafd05ca1538867764f7c4b7916b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jan 2013 21:01:47 +0800 Subject: regulator: core: Fix comment for regulator_register() regulator_register() does not return 0 on success, fix the comment. Signed-off-by: Axel Lin Signed-off-by: Mark Brown diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index d7448ad..2785843 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -3321,7 +3321,8 @@ static void rdev_init_debugfs(struct regulator_dev *rdev) * @config: runtime configuration for regulator * * Called by regulator drivers to register a regulator. - * Returns 0 on success. + * Returns a valid pointer to struct regulator_dev on success + * or an ERR_PTR() on error. */ struct regulator_dev * regulator_register(const struct regulator_desc *regulator_desc, -- cgit v0.10.2 From 392d4cad7907f6cb4ffc85e135a01abfddc89027 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 27 Dec 2012 21:37:04 +0100 Subject: iwlwifi: fix PCIe interrupt handle return value By accident, commit eb6476441bc2fecf6232a87d0313a85f8e3da7f4 ("iwlwifi: protect use_ict with irq_lock") changed the return value of the iwl_pcie_isr() function in case it handles an interrupt -- it now returns IRQ_NONE instead of IRQ_HANDLED. Put back the correct return value. Cc: stable@vger.kernel.org Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c index dad4c4a..8389cd3 100644 --- a/drivers/net/wireless/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/iwlwifi/pcie/rx.c @@ -1166,6 +1166,7 @@ static irqreturn_t iwl_pcie_isr(int irq, void *data) else if (test_bit(STATUS_INT_ENABLED, &trans_pcie->status) && !trans_pcie->inta) iwl_enable_interrupts(trans); + return IRQ_HANDLED; none: /* re-enable interrupts here since we don't have anything to service. */ -- cgit v0.10.2 From f590dcec944552f9a4a61155810f3abd17d6465d Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Mon, 31 Dec 2012 09:26:10 +0200 Subject: iwlwifi: fix the reclaimed packet tracking upon flush queue There's a bug in the currently released firmware version, the sequence control in the Tx response isn't updated in all cases. Take it from the packet as a workaround. Cc: stable@vger.kernel.org Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c index da21328..a790599 100644 --- a/drivers/net/wireless/iwlwifi/dvm/tx.c +++ b/drivers/net/wireless/iwlwifi/dvm/tx.c @@ -1151,13 +1151,6 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb, next_reclaimed = ssn; } - if (tid != IWL_TID_NON_QOS) { - priv->tid_data[sta_id][tid].next_reclaimed = - next_reclaimed; - IWL_DEBUG_TX_REPLY(priv, "Next reclaimed packet:%d\n", - next_reclaimed); - } - iwl_trans_reclaim(priv->trans, txq_id, ssn, &skbs); iwlagn_check_ratid_empty(priv, sta_id, tid); @@ -1208,11 +1201,28 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb, if (!is_agg) iwlagn_non_agg_tx_status(priv, ctx, hdr->addr1); + /* + * W/A for FW bug - the seq_ctl isn't updated when the + * queues are flushed. Fetch it from the packet itself + */ + if (!is_agg && status == TX_STATUS_FAIL_FIFO_FLUSHED) { + next_reclaimed = le16_to_cpu(hdr->seq_ctrl); + next_reclaimed = + SEQ_TO_SN(next_reclaimed + 0x10); + } + is_offchannel_skb = (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN); freed++; } + if (tid != IWL_TID_NON_QOS) { + priv->tid_data[sta_id][tid].next_reclaimed = + next_reclaimed; + IWL_DEBUG_TX_REPLY(priv, "Next reclaimed packet:%d\n", + next_reclaimed); + } + WARN_ON(!is_agg && freed != 1); /* -- cgit v0.10.2 From 55c1945edaac94c5338a3647bc2e85ff75d9cf36 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Mon, 17 Dec 2012 14:12:35 -0800 Subject: xhci: Handle HS bulk/ctrl endpoints that don't NAK. A high speed control or bulk endpoint may have bInterval set to zero, which means it does not NAK. If bInterval is non-zero, it means the endpoint NAKs at a rate of 2^(bInterval - 1). The xHCI code to compute the NAK interval does not handle the special case of zero properly. The current code unconditionally subtracts one from bInterval and uses it as an exponent. This causes a very large bInterval to be used, and warning messages like these will be printed: usb 1-1: ep 0x1 - rounding interval to 32768 microframes, ep desc says 0 microframes This may cause the xHCI host hardware to reject the Configure Endpoint command, which means the HS device will be unusable under xHCI ports. This patch should be backported to kernels as old as 2.6.31, that contain commit dfa49c4ad120a784ef1ff0717168aa79f55a483a "USB: xhci - fix math in xhci_get_endpoint_interval()". Reported-by: Vincent Pelletier Suggested-by: Alan Stern Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index fb51c70..35616ff 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1250,6 +1250,8 @@ static unsigned int xhci_microframes_to_exponent(struct usb_device *udev, static unsigned int xhci_parse_microframe_interval(struct usb_device *udev, struct usb_host_endpoint *ep) { + if (ep->desc.bInterval == 0) + return 0; return xhci_microframes_to_exponent(udev, ep, ep->desc.bInterval, 0, 15); } -- cgit v0.10.2 From 1c7439c61fa6516419c32a9824976334ea969d47 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Wed, 14 Nov 2012 15:58:52 -0800 Subject: USB: Handle auto-transition from hot to warm reset. USB 3.0 hubs and roothubs will automatically transition a failed hot reset to a warm (BH) reset. In that case, the warm reset change bit will be set, and the link state change bit may also be set. Change hub_port_finish_reset to unconditionally clear those change bits for USB 3.0 hubs. If these bits are not cleared, we may lose port change events from the roothub. This commit should be backported to kernels as old as 3.2, that contain the commit 75d7cf72ab9fa01dc70877aa5c68e8ef477229dc "usbcore: refine warm reset logic". Signed-off-by: Sarah Sharp Acked-by: Alan Stern Cc: stable@vger.kernel.org diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index a815fd2..7f8f10e 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2580,16 +2580,16 @@ static void hub_port_finish_reset(struct usb_hub *hub, int port1, clear_port_feature(hub->hdev, port1, USB_PORT_FEAT_C_RESET); /* FIXME need disconnect() for NOTATTACHED device */ - if (warm) { + if (hub_is_superspeed(hub->hdev)) { clear_port_feature(hub->hdev, port1, USB_PORT_FEAT_C_BH_PORT_RESET); clear_port_feature(hub->hdev, port1, USB_PORT_FEAT_C_PORT_LINK_STATE); - } else { + } + if (!warm) usb_set_device_state(udev, *status ? USB_STATE_NOTATTACHED : USB_STATE_DEFAULT); - } break; } } -- cgit v0.10.2 From 8b8132bc3d1cc3d4c0687e4d638a482fa920d98a Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Wed, 14 Nov 2012 16:10:49 -0800 Subject: USB: Ignore xHCI Reset Device status. When the USB core finishes reseting a USB device, the xHCI driver sends a Reset Device command to the host. The xHC then updates its internal representation of the USB device to the 'Default' device state. If the device was already in the Default state, the xHC will complete the command with an error status. If a device needs to be reset several times during enumeration, the second reset will always fail because of the xHCI Reset Device command. This can cause issues during enumeration. For example, usb_reset_and_verify_device calls into hub_port_init in a loop. Say that on the first call into hub_port_init, the device is successfully reset, but doesn't respond to several set address control transfers. Then the port will be disabled, but the udev will remain in tact. usb_reset_and_verify_device will call into hub_port_init again. On the second call into hub_port_init, the device will be reset, and the xHCI driver will issue a Reset Device command. This command will fail (because the device is already in the Default state), and usb_reset_and_verify_device will fail. The port will be disabled, and the device won't be able to enumerate. Fix this by ignoring the return value of the HCD reset_device callback. This commit should be backported to kernels as old as 3.2, that contain the commit 75d7cf72ab9fa01dc70877aa5c68e8ef477229dc "usbcore: refine warm reset logic". Signed-off-by: Sarah Sharp Acked-by: Alan Stern Cc: stable@vger.kernel.org diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 7f8f10e..3bc50fc 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2565,14 +2565,11 @@ static void hub_port_finish_reset(struct usb_hub *hub, int port1, msleep(10 + 40); update_devnum(udev, 0); hcd = bus_to_hcd(udev->bus); - if (hcd->driver->reset_device) { - *status = hcd->driver->reset_device(hcd, udev); - if (*status < 0) { - dev_err(&udev->dev, "Cannot reset " - "HCD device state\n"); - break; - } - } + /* The xHC may think the device is already reset, + * so ignore the status. + */ + if (hcd->driver->reset_device) + hcd->driver->reset_device(hcd, udev); } /* FALL THROUGH */ case -ENOTCONN: -- cgit v0.10.2 From 41e7e056cdc662f704fa9262e5c6e213b4ab45dd Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Wed, 14 Nov 2012 16:42:32 -0800 Subject: USB: Allow USB 3.0 ports to be disabled. If hot and warm reset fails, or a port remains in the Compliance Mode, the USB core needs to be able to disable a USB 3.0 port. Unlike USB 2.0 ports, once the port is placed into the Disabled link state, it will not report any new device connects. To get device connect notifications, we need to put the link into the Disabled state, and then the RxDetect state. The xHCI driver needs to atomically clear all change bits on USB 3.0 port disable, so that we get Port Status Change Events for future port changes. We could technically do this in the USB core instead of in the xHCI roothub code, since the port state machine can't advance out of the disabled state until we set the link state to RxDetect. However, external USB 3.0 hubs don't need this code. They are level-triggered, not edge-triggered like xHCI, so they will continue to send interrupt events when any change bit is set. Therefore it doesn't make sense to put this code in the USB core. This patch is part of a series to fix several reports of infinite loops on device enumeration failure. This includes John, when he boots with a USB 3.0 device (Roseweil eusb3 enclosure) attached to his NEC 0.96 host controller. The fix requires warm reset support, so it does not make sense to backport this patch to stable kernels without warm reset support. This patch should be backported to kernels as old as 3.2, contain the commit ID 75d7cf72ab9fa01dc70877aa5c68e8ef477229dc "usbcore: refine warm reset logic" Signed-off-by: Sarah Sharp Acked-by: Alan Stern Reported-by: John Covici Cc: stable@vger.kernel.org diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 3bc50fc..968ec37 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -877,6 +877,60 @@ static int hub_hub_status(struct usb_hub *hub, return ret; } +static int hub_set_port_link_state(struct usb_hub *hub, int port1, + unsigned int link_status) +{ + return set_port_feature(hub->hdev, + port1 | (link_status << 3), + USB_PORT_FEAT_LINK_STATE); +} + +/* + * If USB 3.0 ports are placed into the Disabled state, they will no longer + * detect any device connects or disconnects. This is generally not what the + * USB core wants, since it expects a disabled port to produce a port status + * change event when a new device connects. + * + * Instead, set the link state to Disabled, wait for the link to settle into + * that state, clear any change bits, and then put the port into the RxDetect + * state. + */ +static int hub_usb3_port_disable(struct usb_hub *hub, int port1) +{ + int ret; + int total_time; + u16 portchange, portstatus; + + if (!hub_is_superspeed(hub->hdev)) + return -EINVAL; + + ret = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_SS_DISABLED); + if (ret) { + dev_err(hub->intfdev, "cannot disable port %d (err = %d)\n", + port1, ret); + return ret; + } + + /* Wait for the link to enter the disabled state. */ + for (total_time = 0; ; total_time += HUB_DEBOUNCE_STEP) { + ret = hub_port_status(hub, port1, &portstatus, &portchange); + if (ret < 0) + return ret; + + if ((portstatus & USB_PORT_STAT_LINK_STATE) == + USB_SS_PORT_LS_SS_DISABLED) + break; + if (total_time >= HUB_DEBOUNCE_TIMEOUT) + break; + msleep(HUB_DEBOUNCE_STEP); + } + if (total_time >= HUB_DEBOUNCE_TIMEOUT) + dev_warn(hub->intfdev, "Could not disable port %d after %d ms\n", + port1, total_time); + + return hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_RX_DETECT); +} + static int hub_port_disable(struct usb_hub *hub, int port1, int set_state) { struct usb_device *hdev = hub->hdev; @@ -885,8 +939,13 @@ static int hub_port_disable(struct usb_hub *hub, int port1, int set_state) if (hub->ports[port1 - 1]->child && set_state) usb_set_device_state(hub->ports[port1 - 1]->child, USB_STATE_NOTATTACHED); - if (!hub->error && !hub_is_superspeed(hub->hdev)) - ret = clear_port_feature(hdev, port1, USB_PORT_FEAT_ENABLE); + if (!hub->error) { + if (hub_is_superspeed(hub->hdev)) + ret = hub_usb3_port_disable(hub, port1); + else + ret = clear_port_feature(hdev, port1, + USB_PORT_FEAT_ENABLE); + } if (ret) dev_err(hub->intfdev, "cannot disable port %d (err = %d)\n", port1, ret); diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index a686cf4..a7dd4f3 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -761,12 +761,39 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, break; case USB_PORT_FEAT_LINK_STATE: temp = xhci_readl(xhci, port_array[wIndex]); + + /* Disable port */ + if (link_state == USB_SS_PORT_LS_SS_DISABLED) { + xhci_dbg(xhci, "Disable port %d\n", wIndex); + temp = xhci_port_state_to_neutral(temp); + /* + * Clear all change bits, so that we get a new + * connection event. + */ + temp |= PORT_CSC | PORT_PEC | PORT_WRC | + PORT_OCC | PORT_RC | PORT_PLC | + PORT_CEC; + xhci_writel(xhci, temp | PORT_PE, + port_array[wIndex]); + temp = xhci_readl(xhci, port_array[wIndex]); + break; + } + + /* Put link in RxDetect (enable port) */ + if (link_state == USB_SS_PORT_LS_RX_DETECT) { + xhci_dbg(xhci, "Enable port %d\n", wIndex); + xhci_set_link_state(xhci, port_array, wIndex, + link_state); + temp = xhci_readl(xhci, port_array[wIndex]); + break; + } + /* Software should not attempt to set - * port link state above '5' (Rx.Detect) and the port + * port link state above '3' (U3) and the port * must be enabled. */ if ((temp & PORT_PE) == 0 || - (link_state > USB_SS_PORT_LS_RX_DETECT)) { + (link_state > USB_SS_PORT_LS_U3)) { xhci_warn(xhci, "Cannot set link state.\n"); goto error; } -- cgit v0.10.2 From 77c7f072c87fa951e9a74805febf26466f31170c Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Wed, 14 Nov 2012 17:16:52 -0800 Subject: USB: Increase reset timeout. John's NEC 0.96 xHCI host controller needs a longer timeout for a warm reset to complete. The logs show it takes 650ms to complete the warm reset, so extend the hub reset timeout to 800ms to be on the safe side. This commit should be backported to kernels as old as 3.2, that contain the commit 75d7cf72ab9fa01dc70877aa5c68e8ef477229dc "usbcore: refine warm reset logic". Signed-off-by: Sarah Sharp Acked-by: Alan Stern Reported-by: John Covici Cc: stable@vger.kernel.org diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 968ec37..b9ce5e8 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2499,7 +2499,7 @@ static unsigned hub_is_wusb(struct usb_hub *hub) #define HUB_SHORT_RESET_TIME 10 #define HUB_BH_RESET_TIME 50 #define HUB_LONG_RESET_TIME 200 -#define HUB_RESET_TIMEOUT 500 +#define HUB_RESET_TIMEOUT 800 static int hub_port_reset(struct usb_hub *hub, int port1, struct usb_device *udev, unsigned int delay, bool warm); -- cgit v0.10.2 From 4f43447e62b37ee19c82a13f72f35b1ca60a74d3 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Thu, 15 Nov 2012 14:58:04 -0800 Subject: USB: Ignore port state until reset completes. The port reset code bails out early if the current connect status is cleared (device disconnected). If we're issuing a hot reset, it may also look at the link state before the reset is finished. Section 10.14.2.6 of the USB 3.0 spec says that when a port enters the Error state or Resetting state, the port connection bit retains the value from the previous state. Therefore we can't trust it until the reset finishes. Also, the xHCI spec section 4.19.1.2.5 says software shall ignore the link state while the port is resetting, as it can be in an unknown state. The port state during reset is also unknown for USB 2.0 hubs. The hub sends a reset signal by driving the bus into an SE0 state. This overwhelms the "connect" signal from the device, so the port can't tell whether anything is connected or not. Fix the port reset code to ignore the port link state and current connect bit until the reset finishes, and USB_PORT_STAT_RESET is cleared. Remove the check for USB_PORT_STAT_C_BH_RESET in the warm reset case, because it's redundant. When the warm reset finishes, the port reset bit will be cleared at the same time USB_PORT_STAT_C_BH_RESET is set. Remove the now-redundant check for a cleared USB_PORT_STAT_RESET bit in the code to deal with the finished reset. This patch should be backported to all stable kernels. Signed-off-by: Sarah Sharp Acked-by: Alan Stern Cc: stable@vger.kernel.org diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index b9ce5e8..42566d7 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2534,6 +2534,10 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1, if (ret < 0) return ret; + /* The port state is unknown until the reset completes. */ + if ((portstatus & USB_PORT_STAT_RESET)) + goto delay; + /* * Some buggy devices require a warm reset to be issued even * when the port appears not to be connected. @@ -2579,11 +2583,7 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1, if ((portchange & USB_PORT_STAT_C_CONNECTION)) return -ENOTCONN; - /* if we`ve finished resetting, then break out of - * the loop - */ - if (!(portstatus & USB_PORT_STAT_RESET) && - (portstatus & USB_PORT_STAT_ENABLE)) { + if ((portstatus & USB_PORT_STAT_ENABLE)) { if (hub_is_wusb(hub)) udev->speed = USB_SPEED_WIRELESS; else if (hub_is_superspeed(hub->hdev)) @@ -2597,10 +2597,10 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1, return 0; } } else { - if (portchange & USB_PORT_STAT_C_BH_RESET) - return 0; + return 0; } +delay: /* switch to the long delay after two short delay failures */ if (delay_time >= 2 * HUB_SHORT_RESET_TIME) delay = HUB_LONG_RESET_TIME; -- cgit v0.10.2 From 65bdac5effd15d6af619b3b7218627ef4d84ed6a Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Wed, 14 Nov 2012 17:58:04 -0800 Subject: USB: Handle warm reset failure on empty port. An empty port can transition to either Inactive or Compliance Mode if a newly connected USB 3.0 device fails to link train. In that case, we issue a warm reset. Some devices, such as John's Roseweil eusb3 enclosure, slip back into Compliance Mode after the warm reset. The current warm reset code does not check for device connect status on warm reset completion, and it incorrectly reports the warm reset succeeded. This causes the USB core to attempt to send a Set Address control transfer to a port in Compliance Mode, which will always fail. Make hub_port_wait_reset check the current connect status and link state after the warm reset completes. Return a failure status if the device is disconnected or the link state is Compliance Mode or SS.Inactive. Make hub_events disable the port if warm reset fails. This will disable the port, and then bring it back into the RxDetect state. Make the USB core ignore the connect change until the device reconnects. Note that this patch does NOT handle connected devices slipping into the Inactive state very well. This is a concern, because devices can go into the Inactive state on U1/U2 exit failure. However, the fix for that case is too large for stable, so it will be submitted in a separate patch. This patch should be backported to kernels as old as 3.2, contain the commit ID 75d7cf72ab9fa01dc70877aa5c68e8ef477229dc "usbcore: refine warm reset logic" Signed-off-by: Sarah Sharp Acked-by: Alan Stern Reported-by: John Covici Cc: stable@vger.kernel.org diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 42566d7..9641e9c 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2597,6 +2597,11 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1, return 0; } } else { + if (!(portstatus & USB_PORT_STAT_CONNECTION) || + hub_port_warm_reset_required(hub, + portstatus)) + return -ENOTCONN; + return 0; } @@ -4694,9 +4699,14 @@ static void hub_events(void) * SS.Inactive state. */ if (hub_port_warm_reset_required(hub, portstatus)) { + int status; + dev_dbg(hub_dev, "warm reset port %d\n", i); - hub_port_reset(hub, i, NULL, + status = hub_port_reset(hub, i, NULL, HUB_BH_RESET_TIME, true); + if (status < 0) + hub_port_disable(hub, i, 1); + connect_change = 0; } if (connect_change) -- cgit v0.10.2 From c52804a472649b2e5005342308739434cbd51119 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Tue, 27 Nov 2012 12:30:23 -0800 Subject: xhci: Avoid "dead ports", add roothub port polling. The USB core hub thread (khubd) is designed with external USB hubs in mind. It expects that if a port status change bit is set, the hub will continue to send a notification through the hub status data transfer. Basically, it expects hub notifications to be level-triggered. The xHCI host controller is designed to be edge-triggered on the logical 'OR' of all the port status change bits. When all port status change bits are clear, and a new change bit is set, the xHC will generate a Port Status Change Event. If another change bit is set in the same port status register before the first bit is cleared, it will not send another event. This means that the hub code may lose port status changes because of race conditions between clearing change bits. The user sees this as a "dead port" that doesn't react to device connects. The fix is to turn on port polling whenever a new change bit is set. Once the USB core issues a hub status request that shows that no change bits are set in any USB ports, turn off port polling. We can't allow the USB core to poll the roothub for port events during host suspend because if the PCI host is in D3cold, the port registers will be all f's. Instead, stop the port polling timer, and unconditionally restart it when the host resumes. If there are no port change bits set after the resume, the first call to hub_status_data will disable polling. This patch should be backported to stable kernels with the first xHCI support, 2.6.31 and newer, that include the commit 0f2a79300a1471cf92ab43af165ea13555c8b0a5 "USB: xhci: Root hub support." There will be merge conflicts because the check for HC_STATE_SUSPENDED was moved into xhci_suspend in 3.8. Signed-off-by: Sarah Sharp Acked-by: Alan Stern Cc: stable@vger.kernel.org diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index a7dd4f3..6891442 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -984,6 +984,7 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf) int max_ports; __le32 __iomem **port_array; struct xhci_bus_state *bus_state; + bool reset_change = false; max_ports = xhci_get_ports(hcd, &port_array); bus_state = &xhci->bus_state[hcd_index(hcd)]; @@ -1015,6 +1016,12 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf) buf[(i + 1) / 8] |= 1 << (i + 1) % 8; status = 1; } + if ((temp & PORT_RC)) + reset_change = true; + } + if (!status && !reset_change) { + xhci_dbg(xhci, "%s: stopping port polling.\n", __func__); + clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); } spin_unlock_irqrestore(&xhci->lock, flags); return status ? retval : 0; diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index cbb44b7..59fb5c6 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1725,6 +1725,15 @@ cleanup: if (bogus_port_status) return; + /* + * xHCI port-status-change events occur when the "or" of all the + * status-change bits in the portsc register changes from 0 to 1. + * New status changes won't cause an event if any other change + * bits are still set. When an event occurs, switch over to + * polling to avoid losing status changes. + */ + xhci_dbg(xhci, "%s: starting port polling.\n", __func__); + set_bit(HCD_FLAG_POLL_RH, &hcd->flags); spin_unlock(&xhci->lock); /* Pass this up to the core */ usb_hcd_poll_rh_status(hcd); diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 5c72c43..f1f01a8 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -884,6 +884,11 @@ int xhci_suspend(struct xhci_hcd *xhci) xhci->shared_hcd->state != HC_STATE_SUSPENDED) return -EINVAL; + /* Don't poll the roothubs on bus suspend. */ + xhci_dbg(xhci, "%s: stopping port polling.\n", __func__); + clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); + del_timer_sync(&hcd->rh_timer); + spin_lock_irq(&xhci->lock); clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); clear_bit(HCD_FLAG_HW_ACCESSIBLE, &xhci->shared_hcd->flags); @@ -1069,6 +1074,11 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) if (xhci->quirks & XHCI_COMP_MODE_QUIRK) compliance_mode_recovery_timer_init(xhci); + /* Re-enable port polling. */ + xhci_dbg(xhci, "%s: starting port polling.\n", __func__); + set_bit(HCD_FLAG_POLL_RH, &hcd->flags); + usb_hcd_poll_rh_status(hcd); + return retval; } #endif /* CONFIG_PM */ -- cgit v0.10.2 From 0cc411b934c4317b363d1af993549f391852b980 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 4 Jan 2013 10:48:10 +0000 Subject: ASoC: wm2200: Remove DSP B and left justified AIF modes These are not supported. Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/wm2200.c b/sound/soc/codecs/wm2200.c index a12fc2f..e6cefe1 100644 --- a/sound/soc/codecs/wm2200.c +++ b/sound/soc/codecs/wm2200.c @@ -1566,15 +1566,9 @@ static int wm2200_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) case SND_SOC_DAIFMT_DSP_A: fmt_val = 0; break; - case SND_SOC_DAIFMT_DSP_B: - fmt_val = 1; - break; case SND_SOC_DAIFMT_I2S: fmt_val = 2; break; - case SND_SOC_DAIFMT_LEFT_J: - fmt_val = 3; - break; default: dev_err(codec->dev, "Unsupported DAI format %d\n", fmt & SND_SOC_DAIFMT_FORMAT_MASK); -- cgit v0.10.2 From d71753e22b24548911b377db28f80870cf50d07b Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 4 Jan 2013 10:48:02 +0000 Subject: ASoC: arizona: Remove DSP B and left justified AIF modes These are not supported. Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index 38248a7..1d8bb59 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -446,15 +446,9 @@ static int arizona_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) case SND_SOC_DAIFMT_DSP_A: mode = 0; break; - case SND_SOC_DAIFMT_DSP_B: - mode = 1; - break; case SND_SOC_DAIFMT_I2S: mode = 2; break; - case SND_SOC_DAIFMT_LEFT_J: - mode = 3; - break; default: arizona_aif_err(dai, "Unsupported DAI format %d\n", fmt & SND_SOC_DAIFMT_FORMAT_MASK); -- cgit v0.10.2 From 5f960294e2031d12f10c8488c3446fecbf59628d Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 4 Jan 2013 21:06:08 +0000 Subject: ASoC: wm5100: Remove DSP B and left justified formats These are not supported Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/wm5100.c b/sound/soc/codecs/wm5100.c index 5a5f369..54397a5 100644 --- a/sound/soc/codecs/wm5100.c +++ b/sound/soc/codecs/wm5100.c @@ -1279,15 +1279,9 @@ static int wm5100_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) case SND_SOC_DAIFMT_DSP_A: mask = 0; break; - case SND_SOC_DAIFMT_DSP_B: - mask = 1; - break; case SND_SOC_DAIFMT_I2S: mask = 2; break; - case SND_SOC_DAIFMT_LEFT_J: - mask = 3; - break; default: dev_err(codec->dev, "Unsupported DAI format %d\n", fmt & SND_SOC_DAIFMT_FORMAT_MASK); -- cgit v0.10.2 From 9c969d8ccb1e17bd20742f4ac9f00c1a64487234 Mon Sep 17 00:00:00 2001 From: Bing Zhao Date: Wed, 2 Jan 2013 16:07:35 -0800 Subject: mwifiex: check wait_event_interruptible return value wait_event_interruptible function returns -ERESTARTSYS if it's interrupted by a signal. Driver should check the return value and handle this case properly. In mwifiex_wait_queue_complete() routine, as we are now checking wait_event_interruptible return value, the condition check is not required. Also, we have removed mwifiex_cancel_pending_ioctl() call to avoid a chance of sending second command to FW by other path as soon as we clear current command node. FW can not handle two commands simultaneously. Cc: "3.6+" Signed-off-by: Bing Zhao Signed-off-by: Amitkumar Karwar Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c index cb68256..60e88b5 100644 --- a/drivers/net/wireless/mwifiex/sta_ioctl.c +++ b/drivers/net/wireless/mwifiex/sta_ioctl.c @@ -56,7 +56,6 @@ int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist, */ int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter) { - bool cancel_flag = false; int status; struct cmd_ctrl_node *cmd_queued; @@ -70,14 +69,11 @@ int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter) atomic_inc(&adapter->cmd_pending); /* Wait for completion */ - wait_event_interruptible(adapter->cmd_wait_q.wait, - *(cmd_queued->condition)); - if (!*(cmd_queued->condition)) - cancel_flag = true; - - if (cancel_flag) { - mwifiex_cancel_pending_ioctl(adapter); - dev_dbg(adapter->dev, "cmd cancel\n"); + status = wait_event_interruptible(adapter->cmd_wait_q.wait, + *(cmd_queued->condition)); + if (status) { + dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status); + return status; } status = adapter->cmd_wait_q.status; @@ -496,8 +492,11 @@ int mwifiex_enable_hs(struct mwifiex_adapter *adapter) return false; } - wait_event_interruptible(adapter->hs_activate_wait_q, - adapter->hs_activate_wait_q_woken); + if (wait_event_interruptible(adapter->hs_activate_wait_q, + adapter->hs_activate_wait_q_woken)) { + dev_err(adapter->dev, "hs_activate_wait_q terminated\n"); + return false; + } return true; } -- cgit v0.10.2 From c3ff0b2dff5b6c63f2deda8f934c0a21fb74850d Mon Sep 17 00:00:00 2001 From: Amitkumar Karwar Date: Wed, 2 Jan 2013 17:32:19 -0800 Subject: mwifiex: fix typo in setting up ibss network parameters commit 683b6d3... "cfg80211: pass a channel definition struct" accidentally changed "==" to "!=". Signed-off-by: Amitkumar Karwar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index a875499..efe525b 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -1709,7 +1709,7 @@ static int mwifiex_set_ibss_params(struct mwifiex_private *priv, NL80211_CHAN_NO_HT) config_bands |= BAND_GN; } else { - if (cfg80211_get_chandef_type(¶ms->chandef) != + if (cfg80211_get_chandef_type(¶ms->chandef) == NL80211_CHAN_NO_HT) config_bands = BAND_A; else -- cgit v0.10.2 From 2be7d22f062535de59babdb4b5e9de9ff31e817e Mon Sep 17 00:00:00 2001 From: Vladimir Kondratiev Date: Thu, 20 Dec 2012 13:13:19 -0800 Subject: wireless: add new wil6210 802.11ad 60GHz driver This adds support for the 60 GHz 802.11ad Wilocity card through a new driver, wil6210. Wilocity implemented the firmware, QCA maintains the device driver. Currently supported: - STA: with security - AP: limited to 1 connected STA, security disabled - Monitor: due to a hardware/firmware limitation either control or non-control frames are monitored Using a STA and AP with this drive, one can assemble a fully functional BSS. Throughput of 1.2Gbps is achieved with iperf. The wil6210 cards have on-board flash memory for the firmware, the cards comes pre-flashed and no firmware download is required. For more details see: http://wireless.kernel.org/en/users/Drivers/wil6210 Signed-off-by: Vladimir Kondratiev Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville diff --git a/MAINTAINERS b/MAINTAINERS index 4e2a1f6..16c3506 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1353,6 +1353,14 @@ W: http://wireless.kernel.org/en/users/Drivers/ath9k S: Supported F: drivers/net/wireless/ath/ath9k/ +WILOCITY WIL6210 WIRELESS DRIVER +M: Vladimir Kondratiev +L: linux-wireless@vger.kernel.org +L: wil6210@qca.qualcomm.com +S: Supported +W: http://wireless.kernel.org/en/users/Drivers/wil6210 +F: drivers/net/wireless/ath/wil6210/ + CARL9170 LINUX COMMUNITY WIRELESS DRIVER M: Christian Lamparter L: linux-wireless@vger.kernel.org diff --git a/drivers/net/wireless/ath/Kconfig b/drivers/net/wireless/ath/Kconfig index 1a67a4f..2c02b4e 100644 --- a/drivers/net/wireless/ath/Kconfig +++ b/drivers/net/wireless/ath/Kconfig @@ -30,5 +30,6 @@ source "drivers/net/wireless/ath/ath9k/Kconfig" source "drivers/net/wireless/ath/carl9170/Kconfig" source "drivers/net/wireless/ath/ath6kl/Kconfig" source "drivers/net/wireless/ath/ar5523/Kconfig" +source "drivers/net/wireless/ath/wil6210/Kconfig" endif diff --git a/drivers/net/wireless/ath/Makefile b/drivers/net/wireless/ath/Makefile index 1e18621..97b964d 100644 --- a/drivers/net/wireless/ath/Makefile +++ b/drivers/net/wireless/ath/Makefile @@ -3,6 +3,7 @@ obj-$(CONFIG_ATH9K_HW) += ath9k/ obj-$(CONFIG_CARL9170) += carl9170/ obj-$(CONFIG_ATH6KL) += ath6kl/ obj-$(CONFIG_AR5523) += ar5523/ +obj-$(CONFIG_WIL6210) += wil6210/ obj-$(CONFIG_ATH_COMMON) += ath.o diff --git a/drivers/net/wireless/ath/wil6210/Kconfig b/drivers/net/wireless/ath/wil6210/Kconfig new file mode 100644 index 0000000..bac3d98 --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/Kconfig @@ -0,0 +1,29 @@ +config WIL6210 + tristate "Wilocity 60g WiFi card wil6210 support" + depends on CFG80211 + depends on PCI + default n + ---help--- + This module adds support for wireless adapter based on + wil6210 chip by Wilocity. It supports operation on the + 60 GHz band, covered by the IEEE802.11ad standard. + + http://wireless.kernel.org/en/users/Drivers/wil6210 + + If you choose to build it as a module, it will be called + wil6210 + +config WIL6210_ISR_COR + bool "Use Clear-On-Read mode for ISR registers for wil6210" + depends on WIL6210 + default y + ---help--- + ISR registers on wil6210 chip may operate in either + COR (Clear-On-Read) or W1C (Write-1-to-Clear) mode. + For production code, use COR (say y); is default since + it saves extra target transaction; + For ISR debug, use W1C (say n); is allows to monitor ISR + registers with debugfs. If COR were used, ISR would + self-clear when accessed for debug purposes, it makes + such monitoring impossible. + Say y unless you debug interrupts diff --git a/drivers/net/wireless/ath/wil6210/Makefile b/drivers/net/wireless/ath/wil6210/Makefile new file mode 100644 index 0000000..9396dc9 --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/Makefile @@ -0,0 +1,13 @@ +obj-$(CONFIG_WIL6210) += wil6210.o + +wil6210-objs := main.o +wil6210-objs += netdev.o +wil6210-objs += cfg80211.o +wil6210-objs += pcie_bus.o +wil6210-objs += debugfs.o +wil6210-objs += wmi.o +wil6210-objs += interrupt.o +wil6210-objs += txrx.o + +subdir-ccflags-y += -Werror +subdir-ccflags-y += -D__CHECK_ENDIAN__ diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c new file mode 100644 index 0000000..116f4e8 --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/cfg80211.c @@ -0,0 +1,573 @@ +/* + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "wil6210.h" +#include "wmi.h" + +#define CHAN60G(_channel, _flags) { \ + .band = IEEE80211_BAND_60GHZ, \ + .center_freq = 56160 + (2160 * (_channel)), \ + .hw_value = (_channel), \ + .flags = (_flags), \ + .max_antenna_gain = 0, \ + .max_power = 40, \ +} + +static struct ieee80211_channel wil_60ghz_channels[] = { + CHAN60G(1, 0), + CHAN60G(2, 0), + CHAN60G(3, 0), +/* channel 4 not supported yet */ +}; + +static struct ieee80211_supported_band wil_band_60ghz = { + .channels = wil_60ghz_channels, + .n_channels = ARRAY_SIZE(wil_60ghz_channels), + .ht_cap = { + .ht_supported = true, + .cap = 0, /* TODO */ + .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, /* TODO */ + .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, /* TODO */ + .mcs = { + /* MCS 1..12 - SC PHY */ + .rx_mask = {0xfe, 0x1f}, /* 1..12 */ + .tx_params = IEEE80211_HT_MCS_TX_DEFINED, /* TODO */ + }, + }, +}; + +static const struct ieee80211_txrx_stypes +wil_mgmt_stypes[NUM_NL80211_IFTYPES] = { + [NL80211_IFTYPE_STATION] = { + .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_RESP >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) + }, + [NL80211_IFTYPE_AP] = { + .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_RESP >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) + }, + [NL80211_IFTYPE_P2P_CLIENT] = { + .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_RESP >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) + }, + [NL80211_IFTYPE_P2P_GO] = { + .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_RESP >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) + }, +}; + +static const u32 wil_cipher_suites[] = { + WLAN_CIPHER_SUITE_GCMP, +}; + +int wil_iftype_nl2wmi(enum nl80211_iftype type) +{ + static const struct { + enum nl80211_iftype nl; + enum wmi_network_type wmi; + } __nl2wmi[] = { + {NL80211_IFTYPE_ADHOC, WMI_NETTYPE_ADHOC}, + {NL80211_IFTYPE_STATION, WMI_NETTYPE_INFRA}, + {NL80211_IFTYPE_AP, WMI_NETTYPE_AP}, + {NL80211_IFTYPE_P2P_CLIENT, WMI_NETTYPE_P2P}, + {NL80211_IFTYPE_P2P_GO, WMI_NETTYPE_P2P}, + {NL80211_IFTYPE_MONITOR, WMI_NETTYPE_ADHOC}, /* FIXME */ + }; + uint i; + + for (i = 0; i < ARRAY_SIZE(__nl2wmi); i++) { + if (__nl2wmi[i].nl == type) + return __nl2wmi[i].wmi; + } + + return -EOPNOTSUPP; +} + +static int wil_cfg80211_get_station(struct wiphy *wiphy, + struct net_device *ndev, + u8 *mac, struct station_info *sinfo) +{ + struct wil6210_priv *wil = wiphy_to_wil(wiphy); + int rc; + struct wmi_notify_req_cmd cmd = { + .cid = 0, + .interval_usec = 0, + }; + + if (memcmp(mac, wil->dst_addr[0], ETH_ALEN)) + return -ENOENT; + + /* WMI_NOTIFY_REQ_DONE_EVENTID handler fills wil->stats.bf_mcs */ + rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd), + WMI_NOTIFY_REQ_DONE_EVENTID, NULL, 0, 20); + if (rc) + return rc; + + sinfo->generation = wil->sinfo_gen; + + sinfo->filled |= STATION_INFO_TX_BITRATE; + sinfo->txrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G; + sinfo->txrate.mcs = wil->stats.bf_mcs; + sinfo->filled |= STATION_INFO_RX_BITRATE; + sinfo->rxrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G; + sinfo->rxrate.mcs = wil->stats.last_mcs_rx; + + if (test_bit(wil_status_fwconnected, &wil->status)) { + sinfo->filled |= STATION_INFO_SIGNAL; + sinfo->signal = 12; /* TODO: provide real value */ + } + + return 0; +} + +static int wil_cfg80211_change_iface(struct wiphy *wiphy, + struct net_device *ndev, + enum nl80211_iftype type, u32 *flags, + struct vif_params *params) +{ + struct wil6210_priv *wil = wiphy_to_wil(wiphy); + struct wireless_dev *wdev = wil->wdev; + + switch (type) { + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_P2P_GO: + break; + case NL80211_IFTYPE_MONITOR: + if (flags) + wil->monitor_flags = *flags; + else + wil->monitor_flags = 0; + + break; + default: + return -EOPNOTSUPP; + } + + wdev->iftype = type; + + return 0; +} + +static int wil_cfg80211_scan(struct wiphy *wiphy, + struct cfg80211_scan_request *request) +{ + struct wil6210_priv *wil = wiphy_to_wil(wiphy); + struct wireless_dev *wdev = wil->wdev; + struct { + struct wmi_start_scan_cmd cmd; + u16 chnl[4]; + } __packed cmd; + uint i, n; + + if (wil->scan_request) { + wil_err(wil, "Already scanning\n"); + return -EAGAIN; + } + + /* check we are client side */ + switch (wdev->iftype) { + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_P2P_CLIENT: + break; + default: + return -EOPNOTSUPP; + + } + + /* FW don't support scan after connection attempt */ + if (test_bit(wil_status_dontscan, &wil->status)) { + wil_err(wil, "Scan after connect attempt not supported\n"); + return -EBUSY; + } + + wil->scan_request = request; + + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd.num_channels = 0; + n = min(request->n_channels, 4U); + for (i = 0; i < n; i++) { + int ch = request->channels[i]->hw_value; + if (ch == 0) { + wil_err(wil, + "Scan requested for unknown frequency %dMhz\n", + request->channels[i]->center_freq); + continue; + } + /* 0-based channel indexes */ + cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1; + wil_dbg(wil, "Scan for ch %d : %d MHz\n", ch, + request->channels[i]->center_freq); + } + + return wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) + + cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0])); +} + +static int wil_cfg80211_connect(struct wiphy *wiphy, + struct net_device *ndev, + struct cfg80211_connect_params *sme) +{ + struct wil6210_priv *wil = wiphy_to_wil(wiphy); + struct cfg80211_bss *bss; + struct wmi_connect_cmd conn; + const u8 *ssid_eid; + const u8 *rsn_eid; + int ch; + int rc = 0; + + bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid, + sme->ssid, sme->ssid_len, + WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); + if (!bss) { + wil_err(wil, "Unable to find BSS\n"); + return -ENOENT; + } + + ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID); + if (!ssid_eid) { + wil_err(wil, "No SSID\n"); + rc = -ENOENT; + goto out; + } + + rsn_eid = sme->ie ? + cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) : + NULL; + if (rsn_eid) { + if (sme->ie_len > WMI_MAX_IE_LEN) { + rc = -ERANGE; + wil_err(wil, "IE too large (%td bytes)\n", + sme->ie_len); + goto out; + } + /* + * For secure assoc, send: + * (1) WMI_DELETE_CIPHER_KEY_CMD + * (2) WMI_SET_APPIE_CMD + */ + rc = wmi_del_cipher_key(wil, 0, bss->bssid); + if (rc) { + wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD failed\n"); + goto out; + } + /* WMI_SET_APPIE_CMD */ + rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie); + if (rc) { + wil_err(wil, "WMI_SET_APPIE_CMD failed\n"); + goto out; + } + } + + /* WMI_CONNECT_CMD */ + memset(&conn, 0, sizeof(conn)); + switch (bss->capability & 0x03) { + case WLAN_CAPABILITY_DMG_TYPE_AP: + conn.network_type = WMI_NETTYPE_INFRA; + break; + case WLAN_CAPABILITY_DMG_TYPE_PBSS: + conn.network_type = WMI_NETTYPE_P2P; + break; + default: + wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n", + bss->capability); + goto out; + } + if (rsn_eid) { + conn.dot11_auth_mode = WMI_AUTH11_SHARED; + conn.auth_mode = WMI_AUTH_WPA2_PSK; + conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP; + conn.pairwise_crypto_len = 16; + } else { + conn.dot11_auth_mode = WMI_AUTH11_OPEN; + conn.auth_mode = WMI_AUTH_NONE; + } + + conn.ssid_len = min_t(u8, ssid_eid[1], 32); + memcpy(conn.ssid, ssid_eid+2, conn.ssid_len); + + ch = bss->channel->hw_value; + if (ch == 0) { + wil_err(wil, "BSS at unknown frequency %dMhz\n", + bss->channel->center_freq); + rc = -EOPNOTSUPP; + goto out; + } + conn.channel = ch - 1; + + memcpy(conn.bssid, bss->bssid, 6); + memcpy(conn.dst_mac, bss->bssid, 6); + /* + * FW don't support scan after connection attempt + */ + set_bit(wil_status_dontscan, &wil->status); + + rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn)); + if (rc == 0) { + /* Connect can take lots of time */ + mod_timer(&wil->connect_timer, + jiffies + msecs_to_jiffies(2000)); + } + + out: + cfg80211_put_bss(bss); + + return rc; +} + +static int wil_cfg80211_disconnect(struct wiphy *wiphy, + struct net_device *ndev, + u16 reason_code) +{ + int rc; + struct wil6210_priv *wil = wiphy_to_wil(wiphy); + + rc = wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0); + + return rc; +} + +static int wil_cfg80211_set_channel(struct wiphy *wiphy, + struct cfg80211_chan_def *chandef) +{ + struct wil6210_priv *wil = wiphy_to_wil(wiphy); + struct wireless_dev *wdev = wil->wdev; + + wdev->preset_chandef = *chandef; + + return 0; +} + +static int wil_cfg80211_add_key(struct wiphy *wiphy, + struct net_device *ndev, + u8 key_index, bool pairwise, + const u8 *mac_addr, + struct key_params *params) +{ + struct wil6210_priv *wil = wiphy_to_wil(wiphy); + + /* group key is not used */ + if (!pairwise) + return 0; + + return wmi_add_cipher_key(wil, key_index, mac_addr, + params->key_len, params->key); +} + +static int wil_cfg80211_del_key(struct wiphy *wiphy, + struct net_device *ndev, + u8 key_index, bool pairwise, + const u8 *mac_addr) +{ + struct wil6210_priv *wil = wiphy_to_wil(wiphy); + + /* group key is not used */ + if (!pairwise) + return 0; + + return wmi_del_cipher_key(wil, key_index, mac_addr); +} + +/* Need to be present or wiphy_new() will WARN */ +static int wil_cfg80211_set_default_key(struct wiphy *wiphy, + struct net_device *ndev, + u8 key_index, bool unicast, + bool multicast) +{ + return 0; +} + +static int wil_cfg80211_start_ap(struct wiphy *wiphy, + struct net_device *ndev, + struct cfg80211_ap_settings *info) +{ + int rc = 0; + struct wil6210_priv *wil = wiphy_to_wil(wiphy); + struct wireless_dev *wdev = ndev->ieee80211_ptr; + struct ieee80211_channel *channel = info->chandef.chan; + struct cfg80211_beacon_data *bcon = &info->beacon; + u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype); + + if (!channel) { + wil_err(wil, "AP: No channel???\n"); + return -EINVAL; + } + + wil_dbg(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value, + channel->center_freq, info->privacy ? "secure" : "open"); + print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET, + info->ssid, info->ssid_len); + + rc = wil_reset(wil); + if (rc) + return rc; + + rc = wmi_set_ssid(wil, info->ssid_len, info->ssid); + if (rc) + return rc; + + rc = wmi_set_channel(wil, channel->hw_value); + if (rc) + return rc; + + /* MAC address - pre-requisite for other commands */ + wmi_set_mac_address(wil, ndev->dev_addr); + + /* IE's */ + /* bcon 'head IE's are not relevant for 60g band */ + wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->beacon_ies_len, + bcon->beacon_ies); + wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, bcon->proberesp_ies_len, + bcon->proberesp_ies); + wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, bcon->assocresp_ies_len, + bcon->assocresp_ies); + + wil->secure_pcp = info->privacy; + + rc = wmi_set_bcon(wil, info->beacon_interval, wmi_nettype); + if (rc) + return rc; + + /* Rx VRING. After MAC and beacon */ + rc = wil_rx_init(wil); + + netif_carrier_on(ndev); + + return rc; +} + +static int wil_cfg80211_stop_ap(struct wiphy *wiphy, + struct net_device *ndev) +{ + int rc = 0; + struct wil6210_priv *wil = wiphy_to_wil(wiphy); + struct wireless_dev *wdev = ndev->ieee80211_ptr; + u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype); + + /* To stop beaconing, set BI to 0 */ + rc = wmi_set_bcon(wil, 0, wmi_nettype); + + return rc; +} + +static struct cfg80211_ops wil_cfg80211_ops = { + .scan = wil_cfg80211_scan, + .connect = wil_cfg80211_connect, + .disconnect = wil_cfg80211_disconnect, + .change_virtual_intf = wil_cfg80211_change_iface, + .get_station = wil_cfg80211_get_station, + .set_monitor_channel = wil_cfg80211_set_channel, + .add_key = wil_cfg80211_add_key, + .del_key = wil_cfg80211_del_key, + .set_default_key = wil_cfg80211_set_default_key, + /* AP mode */ + .start_ap = wil_cfg80211_start_ap, + .stop_ap = wil_cfg80211_stop_ap, +}; + +static void wil_wiphy_init(struct wiphy *wiphy) +{ + /* TODO: set real value */ + wiphy->max_scan_ssids = 10; + wiphy->max_num_pmkids = 0 /* TODO: */; + wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_MONITOR); + /* TODO: enable P2P when integrated with supplicant: + * BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO) + */ + wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | + WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; + dev_warn(wiphy_dev(wiphy), "%s : flags = 0x%08x\n", + __func__, wiphy->flags); + wiphy->probe_resp_offload = + NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | + NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | + NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; + + wiphy->bands[IEEE80211_BAND_60GHZ] = &wil_band_60ghz; + + /* TODO: figure this out */ + wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; + + wiphy->cipher_suites = wil_cipher_suites; + wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites); + wiphy->mgmt_stypes = wil_mgmt_stypes; +} + +struct wireless_dev *wil_cfg80211_init(struct device *dev) +{ + int rc = 0; + struct wireless_dev *wdev; + + wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); + if (!wdev) + return ERR_PTR(-ENOMEM); + + wdev->wiphy = wiphy_new(&wil_cfg80211_ops, + sizeof(struct wil6210_priv)); + if (!wdev->wiphy) { + rc = -ENOMEM; + goto out; + } + + set_wiphy_dev(wdev->wiphy, dev); + wil_wiphy_init(wdev->wiphy); + + rc = wiphy_register(wdev->wiphy); + if (rc < 0) + goto out_failed_reg; + + return wdev; + +out_failed_reg: + wiphy_free(wdev->wiphy); +out: + kfree(wdev); + + return ERR_PTR(rc); +} + +void wil_wdev_free(struct wil6210_priv *wil) +{ + struct wireless_dev *wdev = wil_to_wdev(wil); + + if (!wdev) + return; + + wiphy_unregister(wdev->wiphy); + wiphy_free(wdev->wiphy); + kfree(wdev); +} diff --git a/drivers/net/wireless/ath/wil6210/dbg_hexdump.h b/drivers/net/wireless/ath/wil6210/dbg_hexdump.h new file mode 100644 index 0000000..6a315ba --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/dbg_hexdump.h @@ -0,0 +1,30 @@ +#ifndef WIL_DBG_HEXDUMP_H_ +#define WIL_DBG_HEXDUMP_H_ + +#if defined(CONFIG_DYNAMIC_DEBUG) +#define wil_dynamic_hex_dump(prefix_str, prefix_type, rowsize, \ + groupsize, buf, len, ascii) \ +do { \ + DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, \ + __builtin_constant_p(prefix_str) ? prefix_str : "hexdump");\ + if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \ + print_hex_dump(KERN_DEBUG, prefix_str, \ + prefix_type, rowsize, groupsize, \ + buf, len, ascii); \ +} while (0) + +#define wil_print_hex_dump_debug(prefix_str, prefix_type, rowsize, \ + groupsize, buf, len, ascii) \ + wil_dynamic_hex_dump(prefix_str, prefix_type, rowsize, \ + groupsize, buf, len, ascii) + +#define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \ + wil_dynamic_hex_dump(prefix_str, prefix_type, 16, 1, buf, len, true) +#else /* defined(CONFIG_DYNAMIC_DEBUG) */ +#define wil_print_hex_dump_debug(prefix_str, prefix_type, rowsize, \ + groupsize, buf, len, ascii) \ + print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize, \ + groupsize, buf, len, ascii) +#endif /* defined(CONFIG_DYNAMIC_DEBUG) */ + +#endif /* WIL_DBG_HEXDUMP_H_ */ diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c new file mode 100644 index 0000000..65fc968 --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/debugfs.c @@ -0,0 +1,603 @@ +/* + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include +#include +#include + +#include "wil6210.h" +#include "txrx.h" + +/* Nasty hack. Better have per device instances */ +static u32 mem_addr; +static u32 dbg_txdesc_index; + +static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil, + const char *name, struct vring *vring) +{ + void __iomem *x = wmi_addr(wil, vring->hwtail); + + seq_printf(s, "VRING %s = {\n", name); + seq_printf(s, " pa = 0x%016llx\n", (unsigned long long)vring->pa); + seq_printf(s, " va = 0x%p\n", vring->va); + seq_printf(s, " size = %d\n", vring->size); + seq_printf(s, " swtail = %d\n", vring->swtail); + seq_printf(s, " swhead = %d\n", vring->swhead); + seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail); + if (x) + seq_printf(s, "0x%08x\n", ioread32(x)); + else + seq_printf(s, "???\n"); + + if (vring->va && (vring->size < 1025)) { + uint i; + for (i = 0; i < vring->size; i++) { + volatile struct vring_tx_desc *d = &vring->va[i].tx; + if ((i % 64) == 0 && (i != 0)) + seq_printf(s, "\n"); + seq_printf(s, "%s", (d->dma.status & BIT(0)) ? + "S" : (vring->ctx[i] ? "H" : "h")); + } + seq_printf(s, "\n"); + } + seq_printf(s, "}\n"); +} + +static int wil_vring_debugfs_show(struct seq_file *s, void *data) +{ + uint i; + struct wil6210_priv *wil = s->private; + + wil_print_vring(s, wil, "rx", &wil->vring_rx); + + for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { + struct vring *vring = &(wil->vring_tx[i]); + if (vring->va) { + char name[10]; + snprintf(name, sizeof(name), "tx_%2d", i); + wil_print_vring(s, wil, name, vring); + } + } + + return 0; +} + +static int wil_vring_seq_open(struct inode *inode, struct file *file) +{ + return single_open(file, wil_vring_debugfs_show, inode->i_private); +} + +static const struct file_operations fops_vring = { + .open = wil_vring_seq_open, + .release = single_release, + .read = seq_read, + .llseek = seq_lseek, +}; + +static void wil_print_ring(struct seq_file *s, const char *prefix, + void __iomem *off) +{ + struct wil6210_priv *wil = s->private; + struct wil6210_mbox_ring r; + int rsize; + uint i; + + wil_memcpy_fromio_32(&r, off, sizeof(r)); + wil_mbox_ring_le2cpus(&r); + /* + * we just read memory block from NIC. This memory may be + * garbage. Check validity before using it. + */ + rsize = r.size / sizeof(struct wil6210_mbox_ring_desc); + + seq_printf(s, "ring %s = {\n", prefix); + seq_printf(s, " base = 0x%08x\n", r.base); + seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize); + seq_printf(s, " tail = 0x%08x\n", r.tail); + seq_printf(s, " head = 0x%08x\n", r.head); + seq_printf(s, " entry size = %d\n", r.entry_size); + + if (r.size % sizeof(struct wil6210_mbox_ring_desc)) { + seq_printf(s, " ??? size is not multiple of %zd, garbage?\n", + sizeof(struct wil6210_mbox_ring_desc)); + goto out; + } + + if (!wmi_addr(wil, r.base) || + !wmi_addr(wil, r.tail) || + !wmi_addr(wil, r.head)) { + seq_printf(s, " ??? pointers are garbage?\n"); + goto out; + } + + for (i = 0; i < rsize; i++) { + struct wil6210_mbox_ring_desc d; + struct wil6210_mbox_hdr hdr; + size_t delta = i * sizeof(d); + void __iomem *x = wil->csr + HOSTADDR(r.base) + delta; + + wil_memcpy_fromio_32(&d, x, sizeof(d)); + + seq_printf(s, " [%2x] %s %s%s 0x%08x", i, + d.sync ? "F" : "E", + (r.tail - r.base == delta) ? "t" : " ", + (r.head - r.base == delta) ? "h" : " ", + le32_to_cpu(d.addr)); + if (0 == wmi_read_hdr(wil, d.addr, &hdr)) { + u16 len = le16_to_cpu(hdr.len); + seq_printf(s, " -> %04x %04x %04x %02x\n", + le16_to_cpu(hdr.seq), len, + le16_to_cpu(hdr.type), hdr.flags); + if (len <= MAX_MBOXITEM_SIZE) { + int n = 0; + unsigned char printbuf[16 * 3 + 2]; + unsigned char databuf[MAX_MBOXITEM_SIZE]; + void __iomem *src = wmi_buffer(wil, d.addr) + + sizeof(struct wil6210_mbox_hdr); + /* + * No need to check @src for validity - + * we already validated @d.addr while + * reading header + */ + wil_memcpy_fromio_32(databuf, src, len); + while (n < len) { + int l = min(len - n, 16); + hex_dump_to_buffer(databuf + n, l, + 16, 1, printbuf, + sizeof(printbuf), + false); + seq_printf(s, " : %s\n", printbuf); + n += l; + } + } + } else { + seq_printf(s, "\n"); + } + } + out: + seq_printf(s, "}\n"); +} + +static int wil_mbox_debugfs_show(struct seq_file *s, void *data) +{ + struct wil6210_priv *wil = s->private; + + wil_print_ring(s, "tx", wil->csr + HOST_MBOX + + offsetof(struct wil6210_mbox_ctl, tx)); + wil_print_ring(s, "rx", wil->csr + HOST_MBOX + + offsetof(struct wil6210_mbox_ctl, rx)); + + return 0; +} + +static int wil_mbox_seq_open(struct inode *inode, struct file *file) +{ + return single_open(file, wil_mbox_debugfs_show, inode->i_private); +} + +static const struct file_operations fops_mbox = { + .open = wil_mbox_seq_open, + .release = single_release, + .read = seq_read, + .llseek = seq_lseek, +}; + +static int wil_debugfs_iomem_x32_set(void *data, u64 val) +{ + iowrite32(val, (void __iomem *)data); + wmb(); /* make sure write propagated to HW */ + + return 0; +} + +static int wil_debugfs_iomem_x32_get(void *data, u64 *val) +{ + *val = ioread32((void __iomem *)data); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get, + wil_debugfs_iomem_x32_set, "0x%08llx\n"); + +static struct dentry *wil_debugfs_create_iomem_x32(const char *name, + mode_t mode, + struct dentry *parent, + void __iomem *value) +{ + return debugfs_create_file(name, mode, parent, (void * __force)value, + &fops_iomem_x32); +} + +static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil, + const char *name, + struct dentry *parent, u32 off) +{ + struct dentry *d = debugfs_create_dir(name, parent); + + if (IS_ERR_OR_NULL(d)) + return -ENODEV; + + wil_debugfs_create_iomem_x32("ICC", S_IRUGO | S_IWUSR, d, + wil->csr + off); + wil_debugfs_create_iomem_x32("ICR", S_IRUGO | S_IWUSR, d, + wil->csr + off + 4); + wil_debugfs_create_iomem_x32("ICM", S_IRUGO | S_IWUSR, d, + wil->csr + off + 8); + wil_debugfs_create_iomem_x32("ICS", S_IWUSR, d, + wil->csr + off + 12); + wil_debugfs_create_iomem_x32("IMV", S_IRUGO | S_IWUSR, d, + wil->csr + off + 16); + wil_debugfs_create_iomem_x32("IMS", S_IWUSR, d, + wil->csr + off + 20); + wil_debugfs_create_iomem_x32("IMC", S_IWUSR, d, + wil->csr + off + 24); + + return 0; +} + +static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil, + struct dentry *parent) +{ + struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent); + + if (IS_ERR_OR_NULL(d)) + return -ENODEV; + + wil_debugfs_create_iomem_x32("CAUSE", S_IRUGO, d, wil->csr + + HOSTADDR(RGF_DMA_PSEUDO_CAUSE)); + wil_debugfs_create_iomem_x32("MASK_SW", S_IRUGO, d, wil->csr + + HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW)); + wil_debugfs_create_iomem_x32("MASK_FW", S_IRUGO, d, wil->csr + + HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW)); + + return 0; +} + +static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil, + struct dentry *parent) +{ + struct dentry *d = debugfs_create_dir("ITR_CNT", parent); + + if (IS_ERR_OR_NULL(d)) + return -ENODEV; + + wil_debugfs_create_iomem_x32("TRSH", S_IRUGO, d, wil->csr + + HOSTADDR(RGF_DMA_ITR_CNT_TRSH)); + wil_debugfs_create_iomem_x32("DATA", S_IRUGO, d, wil->csr + + HOSTADDR(RGF_DMA_ITR_CNT_DATA)); + wil_debugfs_create_iomem_x32("CTL", S_IRUGO, d, wil->csr + + HOSTADDR(RGF_DMA_ITR_CNT_CRL)); + + return 0; +} + +static int wil_memread_debugfs_show(struct seq_file *s, void *data) +{ + struct wil6210_priv *wil = s->private; + void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr)); + + if (a) + seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, ioread32(a)); + else + seq_printf(s, "[0x%08x] = INVALID\n", mem_addr); + + return 0; +} + +static int wil_memread_seq_open(struct inode *inode, struct file *file) +{ + return single_open(file, wil_memread_debugfs_show, inode->i_private); +} + +static const struct file_operations fops_memread = { + .open = wil_memread_seq_open, + .release = single_release, + .read = seq_read, + .llseek = seq_lseek, +}; + +static int wil_default_open(struct inode *inode, struct file *file) +{ + if (inode->i_private) + file->private_data = inode->i_private; + + return 0; +} + +static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + enum { max_count = 4096 }; + struct debugfs_blob_wrapper *blob = file->private_data; + loff_t pos = *ppos; + size_t available = blob->size; + void *buf; + size_t ret; + + if (pos < 0) + return -EINVAL; + + if (pos >= available || !count) + return 0; + + if (count > available - pos) + count = available - pos; + if (count > max_count) + count = max_count; + + buf = kmalloc(count, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data + + pos, count); + + ret = copy_to_user(user_buf, buf, count); + kfree(buf); + if (ret == count) + return -EFAULT; + + count -= ret; + *ppos = pos + count; + + return count; +} + +static const struct file_operations fops_ioblob = { + .read = wil_read_file_ioblob, + .open = wil_default_open, + .llseek = default_llseek, +}; + +static +struct dentry *wil_debugfs_create_ioblob(const char *name, + mode_t mode, + struct dentry *parent, + struct debugfs_blob_wrapper *blob) +{ + return debugfs_create_file(name, mode, parent, blob, &fops_ioblob); +} +/*---reset---*/ +static ssize_t wil_write_file_reset(struct file *file, const char __user *buf, + size_t len, loff_t *ppos) +{ + struct wil6210_priv *wil = file->private_data; + struct net_device *ndev = wil_to_ndev(wil); + + /** + * BUG: + * this code does NOT sync device state with the rest of system + * use with care, debug only!!! + */ + rtnl_lock(); + dev_close(ndev); + ndev->flags &= ~IFF_UP; + rtnl_unlock(); + wil_reset(wil); + + return len; +} + +static const struct file_operations fops_reset = { + .write = wil_write_file_reset, + .open = wil_default_open, +}; +/*---------Tx descriptor------------*/ + +static int wil_txdesc_debugfs_show(struct seq_file *s, void *data) +{ + struct wil6210_priv *wil = s->private; + struct vring *vring = &(wil->vring_tx[0]); + + if (!vring->va) { + seq_printf(s, "No Tx VRING\n"); + return 0; + } + + if (dbg_txdesc_index < vring->size) { + volatile struct vring_tx_desc *d = + &(vring->va[dbg_txdesc_index].tx); + volatile u32 *u = (volatile u32 *)d; + struct sk_buff *skb = vring->ctx[dbg_txdesc_index]; + + seq_printf(s, "Tx[%3d] = {\n", dbg_txdesc_index); + seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n", + u[0], u[1], u[2], u[3]); + seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n", + u[4], u[5], u[6], u[7]); + seq_printf(s, " SKB = %p\n", skb); + + if (skb) { + unsigned char printbuf[16 * 3 + 2]; + int i = 0; + int len = skb_headlen(skb); + void *p = skb->data; + + seq_printf(s, " len = %d\n", len); + + while (i < len) { + int l = min(len - i, 16); + hex_dump_to_buffer(p + i, l, 16, 1, printbuf, + sizeof(printbuf), false); + seq_printf(s, " : %s\n", printbuf); + i += l; + } + } + seq_printf(s, "}\n"); + } else { + seq_printf(s, "TxDesc index (%d) >= size (%d)\n", + dbg_txdesc_index, vring->size); + } + + return 0; +} + +static int wil_txdesc_seq_open(struct inode *inode, struct file *file) +{ + return single_open(file, wil_txdesc_debugfs_show, inode->i_private); +} + +static const struct file_operations fops_txdesc = { + .open = wil_txdesc_seq_open, + .release = single_release, + .read = seq_read, + .llseek = seq_lseek, +}; + +/*---------beamforming------------*/ +static int wil_bf_debugfs_show(struct seq_file *s, void *data) +{ + struct wil6210_priv *wil = s->private; + seq_printf(s, + "TSF : 0x%016llx\n" + "TxMCS : %d\n" + "Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n", + wil->stats.tsf, wil->stats.bf_mcs, + wil->stats.my_rx_sector, wil->stats.my_tx_sector, + wil->stats.peer_rx_sector, wil->stats.peer_tx_sector); + return 0; +} + +static int wil_bf_seq_open(struct inode *inode, struct file *file) +{ + return single_open(file, wil_bf_debugfs_show, inode->i_private); +} + +static const struct file_operations fops_bf = { + .open = wil_bf_seq_open, + .release = single_release, + .read = seq_read, + .llseek = seq_lseek, +}; +/*---------SSID------------*/ +static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct wil6210_priv *wil = file->private_data; + struct wireless_dev *wdev = wil_to_wdev(wil); + + return simple_read_from_buffer(user_buf, count, ppos, + wdev->ssid, wdev->ssid_len); +} + +static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct wil6210_priv *wil = file->private_data; + struct wireless_dev *wdev = wil_to_wdev(wil); + struct net_device *ndev = wil_to_ndev(wil); + + if (*ppos != 0) { + wil_err(wil, "Unable to set SSID substring from [%d]\n", + (int)*ppos); + return -EINVAL; + } + + if (count > sizeof(wdev->ssid)) { + wil_err(wil, "SSID too long, len = %d\n", (int)count); + return -EINVAL; + } + if (netif_running(ndev)) { + wil_err(wil, "Unable to change SSID on running interface\n"); + return -EINVAL; + } + + wdev->ssid_len = count; + return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos, + buf, count); +} + +static const struct file_operations fops_ssid = { + .read = wil_read_file_ssid, + .write = wil_write_file_ssid, + .open = wil_default_open, +}; + +/*----------------*/ +int wil6210_debugfs_init(struct wil6210_priv *wil) +{ + struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME, + wil_to_wiphy(wil)->debugfsdir); + + if (IS_ERR_OR_NULL(dbg)) + return -ENODEV; + + debugfs_create_file("mbox", S_IRUGO, dbg, wil, &fops_mbox); + debugfs_create_file("vrings", S_IRUGO, dbg, wil, &fops_vring); + debugfs_create_file("txdesc", S_IRUGO, dbg, wil, &fops_txdesc); + debugfs_create_u32("txdesc_index", S_IRUGO | S_IWUSR, dbg, + &dbg_txdesc_index); + debugfs_create_file("bf", S_IRUGO, dbg, wil, &fops_bf); + debugfs_create_file("ssid", S_IRUGO | S_IWUSR, dbg, wil, &fops_ssid); + debugfs_create_u32("secure_pcp", S_IRUGO | S_IWUSR, dbg, + &wil->secure_pcp); + + wil6210_debugfs_create_ISR(wil, "USER_ICR", dbg, + HOSTADDR(RGF_USER_USER_ICR)); + wil6210_debugfs_create_ISR(wil, "DMA_EP_TX_ICR", dbg, + HOSTADDR(RGF_DMA_EP_TX_ICR)); + wil6210_debugfs_create_ISR(wil, "DMA_EP_RX_ICR", dbg, + HOSTADDR(RGF_DMA_EP_RX_ICR)); + wil6210_debugfs_create_ISR(wil, "DMA_EP_MISC_ICR", dbg, + HOSTADDR(RGF_DMA_EP_MISC_ICR)); + wil6210_debugfs_create_pseudo_ISR(wil, dbg); + wil6210_debugfs_create_ITR_CNT(wil, dbg); + + debugfs_create_u32("mem_addr", S_IRUGO | S_IWUSR, dbg, &mem_addr); + debugfs_create_file("mem_val", S_IRUGO, dbg, wil, &fops_memread); + + debugfs_create_file("reset", S_IWUSR, dbg, wil, &fops_reset); + + wil->rgf_blob.data = (void * __force)wil->csr + 0; + wil->rgf_blob.size = 0xa000; + wil_debugfs_create_ioblob("blob_rgf", S_IRUGO, dbg, &wil->rgf_blob); + + wil->fw_code_blob.data = (void * __force)wil->csr + 0x40000; + wil->fw_code_blob.size = 0x40000; + wil_debugfs_create_ioblob("blob_fw_code", S_IRUGO, dbg, + &wil->fw_code_blob); + + wil->fw_data_blob.data = (void * __force)wil->csr + 0x80000; + wil->fw_data_blob.size = 0x8000; + wil_debugfs_create_ioblob("blob_fw_data", S_IRUGO, dbg, + &wil->fw_data_blob); + + wil->fw_peri_blob.data = (void * __force)wil->csr + 0x88000; + wil->fw_peri_blob.size = 0x18000; + wil_debugfs_create_ioblob("blob_fw_peri", S_IRUGO, dbg, + &wil->fw_peri_blob); + + wil->uc_code_blob.data = (void * __force)wil->csr + 0xa0000; + wil->uc_code_blob.size = 0x10000; + wil_debugfs_create_ioblob("blob_uc_code", S_IRUGO, dbg, + &wil->uc_code_blob); + + wil->uc_data_blob.data = (void * __force)wil->csr + 0xb0000; + wil->uc_data_blob.size = 0x4000; + wil_debugfs_create_ioblob("blob_uc_data", S_IRUGO, dbg, + &wil->uc_data_blob); + + return 0; +} + +void wil6210_debugfs_remove(struct wil6210_priv *wil) +{ + debugfs_remove_recursive(wil->debug); + wil->debug = NULL; +} diff --git a/drivers/net/wireless/ath/wil6210/interrupt.c b/drivers/net/wireless/ath/wil6210/interrupt.c new file mode 100644 index 0000000..38049da --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/interrupt.c @@ -0,0 +1,471 @@ +/* + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include + +#include "wil6210.h" + +/** + * Theory of operation: + * + * There is ISR pseudo-cause register, + * dma_rgf->DMA_RGF.PSEUDO_CAUSE.PSEUDO_CAUSE + * Its bits represents OR'ed bits from 3 real ISR registers: + * TX, RX, and MISC. + * + * Registers may be configured to either "write 1 to clear" or + * "clear on read" mode + * + * When handling interrupt, one have to mask/unmask interrupts for the + * real ISR registers, or hardware may malfunction. + * + */ + +#define WIL6210_IRQ_DISABLE (0xFFFFFFFFUL) +#define WIL6210_IMC_RX BIT_DMA_EP_RX_ICR_RX_DONE +#define WIL6210_IMC_TX (BIT_DMA_EP_TX_ICR_TX_DONE | \ + BIT_DMA_EP_TX_ICR_TX_DONE_N(0)) +#define WIL6210_IMC_MISC (ISR_MISC_FW_READY | ISR_MISC_MBOX_EVT) + +#define WIL6210_IRQ_PSEUDO_MASK (u32)(~(BIT_DMA_PSEUDO_CAUSE_RX | \ + BIT_DMA_PSEUDO_CAUSE_TX | \ + BIT_DMA_PSEUDO_CAUSE_MISC)) + +#if defined(CONFIG_WIL6210_ISR_COR) +/* configure to Clear-On-Read mode */ +#define WIL_ICR_ICC_VALUE (0xFFFFFFFFUL) + +static inline void wil_icr_clear(u32 x, void __iomem *addr) +{ + +} +#else /* defined(CONFIG_WIL6210_ISR_COR) */ +/* configure to Write-1-to-Clear mode */ +#define WIL_ICR_ICC_VALUE (0UL) + +static inline void wil_icr_clear(u32 x, void __iomem *addr) +{ + iowrite32(x, addr); +} +#endif /* defined(CONFIG_WIL6210_ISR_COR) */ + +static inline u32 wil_ioread32_and_clear(void __iomem *addr) +{ + u32 x = ioread32(addr); + + wil_icr_clear(x, addr); + + return x; +} + +static void wil6210_mask_irq_tx(struct wil6210_priv *wil) +{ + iowrite32(WIL6210_IRQ_DISABLE, wil->csr + + HOSTADDR(RGF_DMA_EP_TX_ICR) + + offsetof(struct RGF_ICR, IMS)); +} + +static void wil6210_mask_irq_rx(struct wil6210_priv *wil) +{ + iowrite32(WIL6210_IRQ_DISABLE, wil->csr + + HOSTADDR(RGF_DMA_EP_RX_ICR) + + offsetof(struct RGF_ICR, IMS)); +} + +static void wil6210_mask_irq_misc(struct wil6210_priv *wil) +{ + iowrite32(WIL6210_IRQ_DISABLE, wil->csr + + HOSTADDR(RGF_DMA_EP_MISC_ICR) + + offsetof(struct RGF_ICR, IMS)); +} + +static void wil6210_mask_irq_pseudo(struct wil6210_priv *wil) +{ + wil_dbg_IRQ(wil, "%s()\n", __func__); + + iowrite32(WIL6210_IRQ_DISABLE, wil->csr + + HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW)); + + clear_bit(wil_status_irqen, &wil->status); +} + +static void wil6210_unmask_irq_tx(struct wil6210_priv *wil) +{ + iowrite32(WIL6210_IMC_TX, wil->csr + + HOSTADDR(RGF_DMA_EP_TX_ICR) + + offsetof(struct RGF_ICR, IMC)); +} + +static void wil6210_unmask_irq_rx(struct wil6210_priv *wil) +{ + iowrite32(WIL6210_IMC_RX, wil->csr + + HOSTADDR(RGF_DMA_EP_RX_ICR) + + offsetof(struct RGF_ICR, IMC)); +} + +static void wil6210_unmask_irq_misc(struct wil6210_priv *wil) +{ + iowrite32(WIL6210_IMC_MISC, wil->csr + + HOSTADDR(RGF_DMA_EP_MISC_ICR) + + offsetof(struct RGF_ICR, IMC)); +} + +static void wil6210_unmask_irq_pseudo(struct wil6210_priv *wil) +{ + wil_dbg_IRQ(wil, "%s()\n", __func__); + + set_bit(wil_status_irqen, &wil->status); + + iowrite32(WIL6210_IRQ_PSEUDO_MASK, wil->csr + + HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW)); +} + +void wil6210_disable_irq(struct wil6210_priv *wil) +{ + wil_dbg_IRQ(wil, "%s()\n", __func__); + + wil6210_mask_irq_tx(wil); + wil6210_mask_irq_rx(wil); + wil6210_mask_irq_misc(wil); + wil6210_mask_irq_pseudo(wil); +} + +void wil6210_enable_irq(struct wil6210_priv *wil) +{ + wil_dbg_IRQ(wil, "%s()\n", __func__); + + iowrite32(WIL_ICR_ICC_VALUE, wil->csr + HOSTADDR(RGF_DMA_EP_RX_ICR) + + offsetof(struct RGF_ICR, ICC)); + iowrite32(WIL_ICR_ICC_VALUE, wil->csr + HOSTADDR(RGF_DMA_EP_TX_ICR) + + offsetof(struct RGF_ICR, ICC)); + iowrite32(WIL_ICR_ICC_VALUE, wil->csr + HOSTADDR(RGF_DMA_EP_MISC_ICR) + + offsetof(struct RGF_ICR, ICC)); + + wil6210_unmask_irq_pseudo(wil); + wil6210_unmask_irq_tx(wil); + wil6210_unmask_irq_rx(wil); + wil6210_unmask_irq_misc(wil); +} + +static irqreturn_t wil6210_irq_rx(int irq, void *cookie) +{ + struct wil6210_priv *wil = cookie; + u32 isr = wil_ioread32_and_clear(wil->csr + + HOSTADDR(RGF_DMA_EP_RX_ICR) + + offsetof(struct RGF_ICR, ICR)); + + wil_dbg_IRQ(wil, "ISR RX 0x%08x\n", isr); + + if (!isr) { + wil_err(wil, "spurious IRQ: RX\n"); + return IRQ_NONE; + } + + wil6210_mask_irq_rx(wil); + + if (isr & BIT_DMA_EP_RX_ICR_RX_DONE) { + wil_dbg_IRQ(wil, "RX done\n"); + isr &= ~BIT_DMA_EP_RX_ICR_RX_DONE; + wil_rx_handle(wil); + } + + if (isr) + wil_err(wil, "un-handled RX ISR bits 0x%08x\n", isr); + + wil6210_unmask_irq_rx(wil); + + return IRQ_HANDLED; +} + +static irqreturn_t wil6210_irq_tx(int irq, void *cookie) +{ + struct wil6210_priv *wil = cookie; + u32 isr = wil_ioread32_and_clear(wil->csr + + HOSTADDR(RGF_DMA_EP_TX_ICR) + + offsetof(struct RGF_ICR, ICR)); + + wil_dbg_IRQ(wil, "ISR TX 0x%08x\n", isr); + + if (!isr) { + wil_err(wil, "spurious IRQ: TX\n"); + return IRQ_NONE; + } + + wil6210_mask_irq_tx(wil); + + if (isr & BIT_DMA_EP_TX_ICR_TX_DONE) { + uint i; + wil_dbg_IRQ(wil, "TX done\n"); + isr &= ~BIT_DMA_EP_TX_ICR_TX_DONE; + for (i = 0; i < 24; i++) { + u32 mask = BIT_DMA_EP_TX_ICR_TX_DONE_N(i); + if (isr & mask) { + isr &= ~mask; + wil_dbg_IRQ(wil, "TX done(%i)\n", i); + wil_tx_complete(wil, i); + } + } + } + + if (isr) + wil_err(wil, "un-handled TX ISR bits 0x%08x\n", isr); + + wil6210_unmask_irq_tx(wil); + + return IRQ_HANDLED; +} + +static irqreturn_t wil6210_irq_misc(int irq, void *cookie) +{ + struct wil6210_priv *wil = cookie; + u32 isr = wil_ioread32_and_clear(wil->csr + + HOSTADDR(RGF_DMA_EP_MISC_ICR) + + offsetof(struct RGF_ICR, ICR)); + + wil_dbg_IRQ(wil, "ISR MISC 0x%08x\n", isr); + + if (!isr) { + wil_err(wil, "spurious IRQ: MISC\n"); + return IRQ_NONE; + } + + wil6210_mask_irq_misc(wil); + + if (isr & ISR_MISC_FW_READY) { + wil_dbg_IRQ(wil, "IRQ: FW ready\n"); + /** + * Actual FW ready indicated by the + * WMI_FW_READY_EVENTID + */ + isr &= ~ISR_MISC_FW_READY; + } + + wil->isr_misc = isr; + + if (isr) { + return IRQ_WAKE_THREAD; + } else { + wil6210_unmask_irq_misc(wil); + return IRQ_HANDLED; + } +} + +static irqreturn_t wil6210_irq_misc_thread(int irq, void *cookie) +{ + struct wil6210_priv *wil = cookie; + u32 isr = wil->isr_misc; + + wil_dbg_IRQ(wil, "Thread ISR MISC 0x%08x\n", isr); + + if (isr & ISR_MISC_MBOX_EVT) { + wil_dbg_IRQ(wil, "MBOX event\n"); + wmi_recv_cmd(wil); + isr &= ~ISR_MISC_MBOX_EVT; + } + + if (isr) + wil_err(wil, "un-handled MISC ISR bits 0x%08x\n", isr); + + wil->isr_misc = 0; + + wil6210_unmask_irq_misc(wil); + + return IRQ_HANDLED; +} + +/** + * thread IRQ handler + */ +static irqreturn_t wil6210_thread_irq(int irq, void *cookie) +{ + struct wil6210_priv *wil = cookie; + + wil_dbg_IRQ(wil, "Thread IRQ\n"); + /* Discover real IRQ cause */ + if (wil->isr_misc) + wil6210_irq_misc_thread(irq, cookie); + + wil6210_unmask_irq_pseudo(wil); + + return IRQ_HANDLED; +} + +/* DEBUG + * There is subtle bug in hardware that causes IRQ to raise when it should be + * masked. It is quite rare and hard to debug. + * + * Catch irq issue if it happens and print all I can. + */ +static int wil6210_debug_irq_mask(struct wil6210_priv *wil, u32 pseudo_cause) +{ + if (!test_bit(wil_status_irqen, &wil->status)) { + u32 icm_rx = wil_ioread32_and_clear(wil->csr + + HOSTADDR(RGF_DMA_EP_RX_ICR) + + offsetof(struct RGF_ICR, ICM)); + u32 icr_rx = wil_ioread32_and_clear(wil->csr + + HOSTADDR(RGF_DMA_EP_RX_ICR) + + offsetof(struct RGF_ICR, ICR)); + u32 imv_rx = ioread32(wil->csr + + HOSTADDR(RGF_DMA_EP_RX_ICR) + + offsetof(struct RGF_ICR, IMV)); + u32 icm_tx = wil_ioread32_and_clear(wil->csr + + HOSTADDR(RGF_DMA_EP_TX_ICR) + + offsetof(struct RGF_ICR, ICM)); + u32 icr_tx = wil_ioread32_and_clear(wil->csr + + HOSTADDR(RGF_DMA_EP_TX_ICR) + + offsetof(struct RGF_ICR, ICR)); + u32 imv_tx = ioread32(wil->csr + + HOSTADDR(RGF_DMA_EP_TX_ICR) + + offsetof(struct RGF_ICR, IMV)); + u32 icm_misc = wil_ioread32_and_clear(wil->csr + + HOSTADDR(RGF_DMA_EP_MISC_ICR) + + offsetof(struct RGF_ICR, ICM)); + u32 icr_misc = wil_ioread32_and_clear(wil->csr + + HOSTADDR(RGF_DMA_EP_MISC_ICR) + + offsetof(struct RGF_ICR, ICR)); + u32 imv_misc = ioread32(wil->csr + + HOSTADDR(RGF_DMA_EP_MISC_ICR) + + offsetof(struct RGF_ICR, IMV)); + wil_err(wil, "IRQ when it should be masked: pseudo 0x%08x\n" + "Rx icm:icr:imv 0x%08x 0x%08x 0x%08x\n" + "Tx icm:icr:imv 0x%08x 0x%08x 0x%08x\n" + "Misc icm:icr:imv 0x%08x 0x%08x 0x%08x\n", + pseudo_cause, + icm_rx, icr_rx, imv_rx, + icm_tx, icr_tx, imv_tx, + icm_misc, icr_misc, imv_misc); + + return -EINVAL; + } + + return 0; +} + +static irqreturn_t wil6210_hardirq(int irq, void *cookie) +{ + irqreturn_t rc = IRQ_HANDLED; + struct wil6210_priv *wil = cookie; + u32 pseudo_cause = ioread32(wil->csr + HOSTADDR(RGF_DMA_PSEUDO_CAUSE)); + + /** + * pseudo_cause is Clear-On-Read, no need to ACK + */ + if ((pseudo_cause == 0) || ((pseudo_cause & 0xff) == 0xff)) + return IRQ_NONE; + + /* FIXME: IRQ mask debug */ + if (wil6210_debug_irq_mask(wil, pseudo_cause)) + return IRQ_NONE; + + wil6210_mask_irq_pseudo(wil); + + /* Discover real IRQ cause + * There are 2 possible phases for every IRQ: + * - hard IRQ handler called right here + * - threaded handler called later + * + * Hard IRQ handler reads and clears ISR. + * + * If threaded handler requested, hard IRQ handler + * returns IRQ_WAKE_THREAD and saves ISR register value + * for the threaded handler use. + * + * voting for wake thread - need at least 1 vote + */ + if ((pseudo_cause & BIT_DMA_PSEUDO_CAUSE_RX) && + (wil6210_irq_rx(irq, cookie) == IRQ_WAKE_THREAD)) + rc = IRQ_WAKE_THREAD; + + if ((pseudo_cause & BIT_DMA_PSEUDO_CAUSE_TX) && + (wil6210_irq_tx(irq, cookie) == IRQ_WAKE_THREAD)) + rc = IRQ_WAKE_THREAD; + + if ((pseudo_cause & BIT_DMA_PSEUDO_CAUSE_MISC) && + (wil6210_irq_misc(irq, cookie) == IRQ_WAKE_THREAD)) + rc = IRQ_WAKE_THREAD; + + /* if thread is requested, it will unmask IRQ */ + if (rc != IRQ_WAKE_THREAD) + wil6210_unmask_irq_pseudo(wil); + + wil_dbg_IRQ(wil, "Hard IRQ 0x%08x\n", pseudo_cause); + + return rc; +} + +static int wil6210_request_3msi(struct wil6210_priv *wil, int irq) +{ + int rc; + /* + * IRQ's are in the following order: + * - Tx + * - Rx + * - Misc + */ + + rc = request_irq(irq, wil6210_irq_tx, IRQF_SHARED, + WIL_NAME"_tx", wil); + if (rc) + return rc; + + rc = request_irq(irq + 1, wil6210_irq_rx, IRQF_SHARED, + WIL_NAME"_rx", wil); + if (rc) + goto free0; + + rc = request_threaded_irq(irq + 2, wil6210_irq_misc, + wil6210_irq_misc_thread, + IRQF_SHARED, WIL_NAME"_misc", wil); + if (rc) + goto free1; + + return 0; + /* error branch */ +free1: + free_irq(irq + 1, wil); +free0: + free_irq(irq, wil); + + return rc; +} + +int wil6210_init_irq(struct wil6210_priv *wil, int irq) +{ + int rc; + if (wil->n_msi == 3) + rc = wil6210_request_3msi(wil, irq); + else + rc = request_threaded_irq(irq, wil6210_hardirq, + wil6210_thread_irq, + wil->n_msi ? 0 : IRQF_SHARED, + WIL_NAME, wil); + if (rc) + return rc; + + wil6210_enable_irq(wil); + + return 0; +} + +void wil6210_fini_irq(struct wil6210_priv *wil, int irq) +{ + wil6210_disable_irq(wil); + free_irq(irq, wil); + if (wil->n_msi == 3) { + free_irq(irq + 1, wil); + free_irq(irq + 2, wil); + } +} diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c new file mode 100644 index 0000000..95fcd36 --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/main.c @@ -0,0 +1,407 @@ +/* + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "wil6210.h" + +/* + * Due to a hardware issue, + * one has to read/write to/from NIC in 32-bit chunks; + * regular memcpy_fromio and siblings will + * not work on 64-bit platform - it uses 64-bit transactions + * + * Force 32-bit transactions to enable NIC on 64-bit platforms + * + * To avoid byte swap on big endian host, __raw_{read|write}l + * should be used - {read|write}l would swap bytes to provide + * little endian on PCI value in host endianness. + */ +void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src, + size_t count) +{ + u32 *d = dst; + const volatile u32 __iomem *s = src; + + /* size_t is unsigned, if (count%4 != 0) it will wrap */ + for (count += 4; count > 4; count -= 4) + *d++ = __raw_readl(s++); +} + +void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src, + size_t count) +{ + volatile u32 __iomem *d = dst; + const u32 *s = src; + + for (count += 4; count > 4; count -= 4) + __raw_writel(*s++, d++); +} + +static void _wil6210_disconnect(struct wil6210_priv *wil, void *bssid) +{ + uint i; + struct net_device *ndev = wil_to_ndev(wil); + struct wireless_dev *wdev = wil->wdev; + + wil_dbg(wil, "%s()\n", __func__); + + wil_link_off(wil); + clear_bit(wil_status_fwconnected, &wil->status); + + switch (wdev->sme_state) { + case CFG80211_SME_CONNECTED: + cfg80211_disconnected(ndev, WLAN_STATUS_UNSPECIFIED_FAILURE, + NULL, 0, GFP_KERNEL); + break; + case CFG80211_SME_CONNECTING: + cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0, + WLAN_STATUS_UNSPECIFIED_FAILURE, + GFP_KERNEL); + break; + default: + ; + } + + for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) + wil_vring_fini_tx(wil, i); +} + +static void wil_disconnect_worker(struct work_struct *work) +{ + struct wil6210_priv *wil = container_of(work, + struct wil6210_priv, disconnect_worker); + + _wil6210_disconnect(wil, NULL); +} + +static void wil_connect_timer_fn(ulong x) +{ + struct wil6210_priv *wil = (void *)x; + + wil_dbg(wil, "Connect timeout\n"); + + /* reschedule to thread context - disconnect won't + * run from atomic context + */ + schedule_work(&wil->disconnect_worker); +} + +int wil_priv_init(struct wil6210_priv *wil) +{ + wil_dbg(wil, "%s()\n", __func__); + + mutex_init(&wil->mutex); + mutex_init(&wil->wmi_mutex); + + init_completion(&wil->wmi_ready); + + wil->pending_connect_cid = -1; + setup_timer(&wil->connect_timer, wil_connect_timer_fn, (ulong)wil); + + INIT_WORK(&wil->wmi_connect_worker, wmi_connect_worker); + INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker); + INIT_WORK(&wil->wmi_event_worker, wmi_event_worker); + + INIT_LIST_HEAD(&wil->pending_wmi_ev); + spin_lock_init(&wil->wmi_ev_lock); + + wil->wmi_wq = create_singlethread_workqueue(WIL_NAME"_wmi"); + if (!wil->wmi_wq) + return -EAGAIN; + + wil->wmi_wq_conn = create_singlethread_workqueue(WIL_NAME"_connect"); + if (!wil->wmi_wq_conn) { + destroy_workqueue(wil->wmi_wq); + return -EAGAIN; + } + + /* make shadow copy of registers that should not change on run time */ + wil_memcpy_fromio_32(&wil->mbox_ctl, wil->csr + HOST_MBOX, + sizeof(struct wil6210_mbox_ctl)); + wil_mbox_ring_le2cpus(&wil->mbox_ctl.rx); + wil_mbox_ring_le2cpus(&wil->mbox_ctl.tx); + + return 0; +} + +void wil6210_disconnect(struct wil6210_priv *wil, void *bssid) +{ + del_timer_sync(&wil->connect_timer); + _wil6210_disconnect(wil, bssid); +} + +void wil_priv_deinit(struct wil6210_priv *wil) +{ + cancel_work_sync(&wil->disconnect_worker); + wil6210_disconnect(wil, NULL); + wmi_event_flush(wil); + destroy_workqueue(wil->wmi_wq_conn); + destroy_workqueue(wil->wmi_wq); +} + +static void wil_target_reset(struct wil6210_priv *wil) +{ + wil_dbg(wil, "Resetting...\n"); + + /* register write */ +#define W(a, v) iowrite32(v, wil->csr + HOSTADDR(a)) + /* register set = read, OR, write */ +#define S(a, v) iowrite32(ioread32(wil->csr + HOSTADDR(a)) | v, \ + wil->csr + HOSTADDR(a)) + + /* hpal_perst_from_pad_src_n_mask */ + S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT(6)); + /* car_perst_rst_src_n_mask */ + S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT(7)); + + W(RGF_USER_MAC_CPU_0, BIT(1)); /* mac_cpu_man_rst */ + W(RGF_USER_USER_CPU_0, BIT(1)); /* user_cpu_man_rst */ + + msleep(100); + + W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0xFE000000); + W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003F); + W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000170); + W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xFFE7FC00); + + msleep(100); + + W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0); + W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0); + W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0); + W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); + + W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000001); + W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00000080); + W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); + + msleep(2000); + + W(RGF_USER_USER_CPU_0, BIT(0)); /* user_cpu_man_de_rst */ + + msleep(2000); + + wil_dbg(wil, "Reset completed\n"); + +#undef W +#undef S +} + +void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r) +{ + le32_to_cpus(&r->base); + le16_to_cpus(&r->entry_size); + le16_to_cpus(&r->size); + le32_to_cpus(&r->tail); + le32_to_cpus(&r->head); +} + +static int wil_wait_for_fw_ready(struct wil6210_priv *wil) +{ + ulong to = msecs_to_jiffies(1000); + ulong left = wait_for_completion_timeout(&wil->wmi_ready, to); + if (0 == left) { + wil_err(wil, "Firmware not ready\n"); + return -ETIME; + } else { + wil_dbg(wil, "FW ready after %d ms\n", + jiffies_to_msecs(to-left)); + } + return 0; +} + +/* + * We reset all the structures, and we reset the UMAC. + * After calling this routine, you're expected to reload + * the firmware. + */ +int wil_reset(struct wil6210_priv *wil) +{ + int rc; + + cancel_work_sync(&wil->disconnect_worker); + wil6210_disconnect(wil, NULL); + + wmi_event_flush(wil); + + flush_workqueue(wil->wmi_wq); + flush_workqueue(wil->wmi_wq_conn); + + wil6210_disable_irq(wil); + wil->status = 0; + + /* TODO: put MAC in reset */ + wil_target_reset(wil); + + /* init after reset */ + wil->pending_connect_cid = -1; + INIT_COMPLETION(wil->wmi_ready); + + /* make shadow copy of registers that should not change on run time */ + wil_memcpy_fromio_32(&wil->mbox_ctl, wil->csr + HOST_MBOX, + sizeof(struct wil6210_mbox_ctl)); + wil_mbox_ring_le2cpus(&wil->mbox_ctl.rx); + wil_mbox_ring_le2cpus(&wil->mbox_ctl.tx); + + /* TODO: release MAC reset */ + wil6210_enable_irq(wil); + + /* we just started MAC, wait for FW ready */ + rc = wil_wait_for_fw_ready(wil); + + return rc; +} + + +void wil_link_on(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil_to_ndev(wil); + + wil_dbg(wil, "%s()\n", __func__); + + netif_carrier_on(ndev); + netif_tx_wake_all_queues(ndev); +} + +void wil_link_off(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil_to_ndev(wil); + + wil_dbg(wil, "%s()\n", __func__); + + netif_tx_stop_all_queues(ndev); + netif_carrier_off(ndev); +} + +static int __wil_up(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil_to_ndev(wil); + struct wireless_dev *wdev = wil->wdev; + struct ieee80211_channel *channel = wdev->preset_chandef.chan; + int rc; + int bi; + u16 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype); + + rc = wil_reset(wil); + if (rc) + return rc; + + /* FIXME Firmware works now in PBSS mode(ToDS=0, FromDS=0) */ + wmi_nettype = wil_iftype_nl2wmi(NL80211_IFTYPE_ADHOC); + switch (wdev->iftype) { + case NL80211_IFTYPE_STATION: + wil_dbg(wil, "type: STATION\n"); + bi = 0; + ndev->type = ARPHRD_ETHER; + break; + case NL80211_IFTYPE_AP: + wil_dbg(wil, "type: AP\n"); + bi = 100; + ndev->type = ARPHRD_ETHER; + break; + case NL80211_IFTYPE_P2P_CLIENT: + wil_dbg(wil, "type: P2P_CLIENT\n"); + bi = 0; + ndev->type = ARPHRD_ETHER; + break; + case NL80211_IFTYPE_P2P_GO: + wil_dbg(wil, "type: P2P_GO\n"); + bi = 100; + ndev->type = ARPHRD_ETHER; + break; + case NL80211_IFTYPE_MONITOR: + wil_dbg(wil, "type: Monitor\n"); + bi = 0; + ndev->type = ARPHRD_IEEE80211_RADIOTAP; + /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */ + break; + default: + return -EOPNOTSUPP; + } + + /* Apply profile in the following order: */ + /* SSID and channel for the AP */ + switch (wdev->iftype) { + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_P2P_GO: + if (wdev->ssid_len == 0) { + wil_err(wil, "SSID not set\n"); + return -EINVAL; + } + wmi_set_ssid(wil, wdev->ssid_len, wdev->ssid); + if (channel) + wmi_set_channel(wil, channel->hw_value); + break; + default: + ; + } + + /* MAC address - pre-requisite for other commands */ + wmi_set_mac_address(wil, ndev->dev_addr); + + /* Set up beaconing if required. */ + rc = wmi_set_bcon(wil, bi, wmi_nettype); + if (rc) + return rc; + + /* Rx VRING. After MAC and beacon */ + wil_rx_init(wil); + + return 0; +} + +int wil_up(struct wil6210_priv *wil) +{ + int rc; + + mutex_lock(&wil->mutex); + rc = __wil_up(wil); + mutex_unlock(&wil->mutex); + + return rc; +} + +static int __wil_down(struct wil6210_priv *wil) +{ + if (wil->scan_request) { + cfg80211_scan_done(wil->scan_request, true); + wil->scan_request = NULL; + } + + wil6210_disconnect(wil, NULL); + wil_rx_fini(wil); + + return 0; +} + +int wil_down(struct wil6210_priv *wil) +{ + int rc; + + mutex_lock(&wil->mutex); + rc = __wil_down(wil); + mutex_unlock(&wil->mutex); + + return rc; +} diff --git a/drivers/net/wireless/ath/wil6210/netdev.c b/drivers/net/wireless/ath/wil6210/netdev.c new file mode 100644 index 0000000..3068b5c --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/netdev.c @@ -0,0 +1,157 @@ +/* + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include +#include + +#include "wil6210.h" + +static int wil_open(struct net_device *ndev) +{ + struct wil6210_priv *wil = ndev_to_wil(ndev); + + return wil_up(wil); +} + +static int wil_stop(struct net_device *ndev) +{ + struct wil6210_priv *wil = ndev_to_wil(ndev); + + return wil_down(wil); +} + +/* + * AC to queue mapping + * + * AC_VO -> queue 3 + * AC_VI -> queue 2 + * AC_BE -> queue 1 + * AC_BK -> queue 0 + */ +static u16 wil_select_queue(struct net_device *ndev, struct sk_buff *skb) +{ + static const u16 wil_1d_to_queue[8] = { 1, 0, 0, 1, 2, 2, 3, 3 }; + struct wil6210_priv *wil = ndev_to_wil(ndev); + u16 rc; + + skb->priority = cfg80211_classify8021d(skb); + + rc = wil_1d_to_queue[skb->priority]; + + wil_dbg_TXRX(wil, "%s() %d -> %d\n", __func__, (int)skb->priority, + (int)rc); + + return rc; +} + +static const struct net_device_ops wil_netdev_ops = { + .ndo_open = wil_open, + .ndo_stop = wil_stop, + .ndo_start_xmit = wil_start_xmit, + .ndo_select_queue = wil_select_queue, + .ndo_set_mac_address = eth_mac_addr, + .ndo_validate_addr = eth_validate_addr, +}; + +void *wil_if_alloc(struct device *dev, void __iomem *csr) +{ + struct net_device *ndev; + struct wireless_dev *wdev; + struct wil6210_priv *wil; + struct ieee80211_channel *ch; + int rc = 0; + + wdev = wil_cfg80211_init(dev); + if (IS_ERR(wdev)) { + dev_err(dev, "wil_cfg80211_init failed\n"); + return wdev; + } + + wil = wdev_to_wil(wdev); + wil->csr = csr; + wil->wdev = wdev; + + rc = wil_priv_init(wil); + if (rc) { + dev_err(dev, "wil_priv_init failed\n"); + goto out_wdev; + } + + wdev->iftype = NL80211_IFTYPE_STATION; /* TODO */ + /* default monitor channel */ + ch = wdev->wiphy->bands[IEEE80211_BAND_60GHZ]->channels; + cfg80211_chandef_create(&wdev->preset_chandef, ch, NL80211_CHAN_NO_HT); + + ndev = alloc_netdev_mqs(0, "wlan%d", ether_setup, WIL6210_TX_QUEUES, 1); + if (!ndev) { + dev_err(dev, "alloc_netdev_mqs failed\n"); + rc = -ENOMEM; + goto out_priv; + } + + ndev->netdev_ops = &wil_netdev_ops; + ndev->ieee80211_ptr = wdev; + SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy)); + wdev->netdev = ndev; + + wil_link_off(wil); + + return wil; + + out_priv: + wil_priv_deinit(wil); + + out_wdev: + wil_wdev_free(wil); + + return ERR_PTR(rc); +} + +void wil_if_free(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil_to_ndev(wil); + if (!ndev) + return; + + free_netdev(ndev); + wil_priv_deinit(wil); + wil_wdev_free(wil); +} + +int wil_if_add(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil_to_ndev(wil); + int rc; + + rc = register_netdev(ndev); + if (rc < 0) { + dev_err(&ndev->dev, "Failed to register netdev: %d\n", rc); + return rc; + } + + wil_link_off(wil); + + return 0; +} + +void wil_if_remove(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil_to_ndev(wil); + + unregister_netdev(ndev); +} diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c new file mode 100644 index 0000000..0fc83ed --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c @@ -0,0 +1,223 @@ +/* + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "wil6210.h" + +static int use_msi = 1; +module_param(use_msi, int, S_IRUGO); +MODULE_PARM_DESC(use_msi, + " Use MSI interrupt: " + "0 - don't, 1 - (default) - single, or 3"); + +/* Bus ops */ +static int wil_if_pcie_enable(struct wil6210_priv *wil) +{ + struct pci_dev *pdev = wil->pdev; + int rc; + + pci_set_master(pdev); + + /* + * how many MSI interrupts to request? + */ + switch (use_msi) { + case 3: + case 1: + case 0: + break; + default: + wil_err(wil, "Invalid use_msi=%d, default to 1\n", + use_msi); + use_msi = 1; + } + wil->n_msi = use_msi; + if (wil->n_msi) { + wil_dbg(wil, "Setup %d MSI interrupts\n", use_msi); + rc = pci_enable_msi_block(pdev, wil->n_msi); + if (rc && (wil->n_msi == 3)) { + wil_err(wil, "3 MSI mode failed, try 1 MSI\n"); + wil->n_msi = 1; + rc = pci_enable_msi_block(pdev, wil->n_msi); + } + if (rc) { + wil_err(wil, "pci_enable_msi failed, use INTx\n"); + wil->n_msi = 0; + } + } else { + wil_dbg(wil, "MSI interrupts disabled, use INTx\n"); + } + + rc = wil6210_init_irq(wil, pdev->irq); + if (rc) + goto stop_master; + + /* need reset here to obtain MAC */ + rc = wil_reset(wil); + if (rc) + goto release_irq; + + return 0; + + release_irq: + wil6210_fini_irq(wil, pdev->irq); + /* safe to call if no MSI */ + pci_disable_msi(pdev); + stop_master: + pci_clear_master(pdev); + return rc; +} + +static int wil_if_pcie_disable(struct wil6210_priv *wil) +{ + struct pci_dev *pdev = wil->pdev; + + pci_clear_master(pdev); + /* disable and release IRQ */ + wil6210_fini_irq(wil, pdev->irq); + /* safe to call if no MSI */ + pci_disable_msi(pdev); + /* TODO: disable HW */ + + return 0; +} + +static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + struct wil6210_priv *wil; + struct device *dev = &pdev->dev; + void __iomem *csr; + int rc; + + /* check HW */ + dev_info(&pdev->dev, WIL_NAME " device found [%04x:%04x] (rev %x)\n", + (int)pdev->vendor, (int)pdev->device, (int)pdev->revision); + + if (pci_resource_len(pdev, 0) != WIL6210_MEM_SIZE) { + dev_err(&pdev->dev, "Not " WIL_NAME "? " + "BAR0 size is %lu while expecting %lu\n", + (ulong)pci_resource_len(pdev, 0), WIL6210_MEM_SIZE); + return -ENODEV; + } + + rc = pci_enable_device(pdev); + if (rc) { + dev_err(&pdev->dev, "pci_enable_device failed\n"); + return -ENODEV; + } + /* rollback to err_disable_pdev */ + + rc = pci_request_region(pdev, 0, WIL_NAME); + if (rc) { + dev_err(&pdev->dev, "pci_request_region failed\n"); + goto err_disable_pdev; + } + /* rollback to err_release_reg */ + + csr = pci_ioremap_bar(pdev, 0); + if (!csr) { + dev_err(&pdev->dev, "pci_ioremap_bar failed\n"); + rc = -ENODEV; + goto err_release_reg; + } + /* rollback to err_iounmap */ + dev_info(&pdev->dev, "CSR at %pR -> %p\n", &pdev->resource[0], csr); + + wil = wil_if_alloc(dev, csr); + if (IS_ERR(wil)) { + rc = (int)PTR_ERR(wil); + dev_err(dev, "wil_if_alloc failed: %d\n", rc); + goto err_iounmap; + } + /* rollback to if_free */ + + pci_set_drvdata(pdev, wil); + wil->pdev = pdev; + + /* FW should raise IRQ when ready */ + rc = wil_if_pcie_enable(wil); + if (rc) { + wil_err(wil, "Enable device failed\n"); + goto if_free; + } + /* rollback to bus_disable */ + + rc = wil_if_add(wil); + if (rc) { + wil_err(wil, "wil_if_add failed: %d\n", rc); + goto bus_disable; + } + + wil6210_debugfs_init(wil); + + /* check FW is alive */ + wmi_echo(wil); + + return 0; + + bus_disable: + wil_if_pcie_disable(wil); + if_free: + wil_if_free(wil); + err_iounmap: + pci_iounmap(pdev, csr); + err_release_reg: + pci_release_region(pdev, 0); + err_disable_pdev: + pci_disable_device(pdev); + + return rc; +} + +static void wil_pcie_remove(struct pci_dev *pdev) +{ + struct wil6210_priv *wil = pci_get_drvdata(pdev); + + wil6210_debugfs_remove(wil); + wil_if_pcie_disable(wil); + wil_if_remove(wil); + wil_if_free(wil); + pci_iounmap(pdev, wil->csr); + pci_release_region(pdev, 0); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); +} + +static DEFINE_PCI_DEVICE_TABLE(wil6210_pcie_ids) = { + { PCI_DEVICE(0x1ae9, 0x0301) }, + { /* end: all zeroes */ }, +}; +MODULE_DEVICE_TABLE(pci, wil6210_pcie_ids); + +static struct pci_driver wil6210_driver = { + .probe = wil_pcie_probe, + .remove = wil_pcie_remove, + .id_table = wil6210_pcie_ids, + .name = WIL_NAME, +}; + +module_pci_driver(wil6210_driver); + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_AUTHOR("Qualcomm Atheros "); +MODULE_DESCRIPTION("Driver for 60g WiFi WIL6210 card"); diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c new file mode 100644 index 0000000..f29c294 --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/txrx.c @@ -0,0 +1,871 @@ +/* + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "wil6210.h" +#include "wmi.h" +#include "txrx.h" + +static bool rtap_include_phy_info; +module_param(rtap_include_phy_info, bool, S_IRUGO); +MODULE_PARM_DESC(rtap_include_phy_info, + " Include PHY info in the radiotap header, default - no"); + +static inline int wil_vring_is_empty(struct vring *vring) +{ + return vring->swhead == vring->swtail; +} + +static inline u32 wil_vring_next_tail(struct vring *vring) +{ + return (vring->swtail + 1) % vring->size; +} + +static inline void wil_vring_advance_head(struct vring *vring, int n) +{ + vring->swhead = (vring->swhead + n) % vring->size; +} + +static inline int wil_vring_is_full(struct vring *vring) +{ + return wil_vring_next_tail(vring) == vring->swhead; +} +/* + * Available space in Tx Vring + */ +static inline int wil_vring_avail_tx(struct vring *vring) +{ + u32 swhead = vring->swhead; + u32 swtail = vring->swtail; + int used = (vring->size + swhead - swtail) % vring->size; + + return vring->size - used - 1; +} + +static int wil_vring_alloc(struct wil6210_priv *wil, struct vring *vring) +{ + struct device *dev = wil_to_dev(wil); + size_t sz = vring->size * sizeof(vring->va[0]); + uint i; + + BUILD_BUG_ON(sizeof(vring->va[0]) != 32); + + vring->swhead = 0; + vring->swtail = 0; + vring->ctx = kzalloc(vring->size * sizeof(vring->ctx[0]), GFP_KERNEL); + if (!vring->ctx) { + wil_err(wil, "vring_alloc [%d] failed to alloc ctx mem\n", + vring->size); + vring->va = NULL; + return -ENOMEM; + } + /* + * vring->va should be aligned on its size rounded up to power of 2 + * This is granted by the dma_alloc_coherent + */ + vring->va = dma_alloc_coherent(dev, sz, &vring->pa, GFP_KERNEL); + if (!vring->va) { + wil_err(wil, "vring_alloc [%d] failed to alloc DMA mem\n", + vring->size); + kfree(vring->ctx); + vring->ctx = NULL; + return -ENOMEM; + } + /* initially, all descriptors are SW owned + * For Tx and Rx, ownership bit is at the same location, thus + * we can use any + */ + for (i = 0; i < vring->size; i++) { + volatile struct vring_tx_desc *d = &(vring->va[i].tx); + d->dma.status = TX_DMA_STATUS_DU; + } + + wil_dbg(wil, "vring[%d] 0x%p:0x%016llx 0x%p\n", vring->size, + vring->va, (unsigned long long)vring->pa, vring->ctx); + + return 0; +} + +static void wil_vring_free(struct wil6210_priv *wil, struct vring *vring, + int tx) +{ + struct device *dev = wil_to_dev(wil); + size_t sz = vring->size * sizeof(vring->va[0]); + + while (!wil_vring_is_empty(vring)) { + if (tx) { + volatile struct vring_tx_desc *d = + &vring->va[vring->swtail].tx; + dma_addr_t pa = d->dma.addr_low | + ((u64)d->dma.addr_high << 32); + struct sk_buff *skb = vring->ctx[vring->swtail]; + if (skb) { + dma_unmap_single(dev, pa, d->dma.length, + DMA_TO_DEVICE); + dev_kfree_skb_any(skb); + vring->ctx[vring->swtail] = NULL; + } else { + dma_unmap_page(dev, pa, d->dma.length, + DMA_TO_DEVICE); + } + vring->swtail = wil_vring_next_tail(vring); + } else { /* rx */ + volatile struct vring_rx_desc *d = + &vring->va[vring->swtail].rx; + dma_addr_t pa = d->dma.addr_low | + ((u64)d->dma.addr_high << 32); + struct sk_buff *skb = vring->ctx[vring->swhead]; + dma_unmap_single(dev, pa, d->dma.length, + DMA_FROM_DEVICE); + kfree_skb(skb); + wil_vring_advance_head(vring, 1); + } + } + dma_free_coherent(dev, sz, (void *)vring->va, vring->pa); + kfree(vring->ctx); + vring->pa = 0; + vring->va = NULL; + vring->ctx = NULL; +} + +/** + * Allocate one skb for Rx VRING + * + * Safe to call from IRQ + */ +static int wil_vring_alloc_skb(struct wil6210_priv *wil, struct vring *vring, + u32 i, int headroom) +{ + struct device *dev = wil_to_dev(wil); + unsigned int sz = RX_BUF_LEN; + volatile struct vring_rx_desc *d = &(vring->va[i].rx); + dma_addr_t pa; + + /* TODO align */ + struct sk_buff *skb = dev_alloc_skb(sz + headroom); + if (unlikely(!skb)) + return -ENOMEM; + + skb_reserve(skb, headroom); + skb_put(skb, sz); + + pa = dma_map_single(dev, skb->data, skb->len, DMA_FROM_DEVICE); + if (unlikely(dma_mapping_error(dev, pa))) { + kfree_skb(skb); + return -ENOMEM; + } + + d->dma.d0 = BIT(9) | RX_DMA_D0_CMD_DMA_IT; + d->dma.addr_low = lower_32_bits(pa); + d->dma.addr_high = (u16)upper_32_bits(pa); + /* ip_length don't care */ + /* b11 don't care */ + /* error don't care */ + d->dma.status = 0; /* BIT(0) should be 0 for HW_OWNED */ + d->dma.length = sz; + vring->ctx[i] = skb; + + return 0; +} + +/** + * Adds radiotap header + * + * Any error indicated as "Bad FCS" + * + * Vendor data for 04:ce:14-1 (Wilocity-1) consists of: + * - Rx descriptor: 32 bytes + * - Phy info + */ +static void wil_rx_add_radiotap_header(struct wil6210_priv *wil, + struct sk_buff *skb, + volatile struct vring_rx_desc *d) +{ + struct wireless_dev *wdev = wil->wdev; + struct wil6210_rtap { + struct ieee80211_radiotap_header rthdr; + /* fields should be in the order of bits in rthdr.it_present */ + /* flags */ + u8 flags; + /* channel */ + __le16 chnl_freq __aligned(2); + __le16 chnl_flags; + /* MCS */ + u8 mcs_present; + u8 mcs_flags; + u8 mcs_index; + } __packed; + struct wil6210_rtap_vendor { + struct wil6210_rtap rtap; + /* vendor */ + u8 vendor_oui[3] __aligned(2); + u8 vendor_ns; + __le16 vendor_skip; + u8 vendor_data[0]; + } __packed; + struct wil6210_rtap_vendor *rtap_vendor; + int rtap_len = sizeof(struct wil6210_rtap); + int phy_length = 0; /* phy info header size, bytes */ + static char phy_data[128]; + struct ieee80211_channel *ch = wdev->preset_chandef.chan; + + if (rtap_include_phy_info) { + rtap_len = sizeof(*rtap_vendor) + sizeof(*d); + /* calculate additional length */ + if (d->dma.status & RX_DMA_STATUS_PHY_INFO) { + /** + * PHY info starts from 8-byte boundary + * there are 8-byte lines, last line may be partially + * written (HW bug), thus FW configures for last line + * to be excessive. Driver skips this last line. + */ + int len = min_t(int, 8 + sizeof(phy_data), + wil_rxdesc_phy_length(d)); + if (len > 8) { + void *p = skb_tail_pointer(skb); + void *pa = PTR_ALIGN(p, 8); + if (skb_tailroom(skb) >= len + (pa - p)) { + phy_length = len - 8; + memcpy(phy_data, pa, phy_length); + } + } + } + rtap_len += phy_length; + } + + if (skb_headroom(skb) < rtap_len && + pskb_expand_head(skb, rtap_len, 0, GFP_ATOMIC)) { + wil_err(wil, "Unable to expand headrom to %d\n", rtap_len); + return; + } + + rtap_vendor = (void *)skb_push(skb, rtap_len); + memset(rtap_vendor, 0, rtap_len); + + rtap_vendor->rtap.rthdr.it_version = PKTHDR_RADIOTAP_VERSION; + rtap_vendor->rtap.rthdr.it_len = cpu_to_le16(rtap_len); + rtap_vendor->rtap.rthdr.it_present = cpu_to_le32( + (1 << IEEE80211_RADIOTAP_FLAGS) | + (1 << IEEE80211_RADIOTAP_CHANNEL) | + (1 << IEEE80211_RADIOTAP_MCS)); + if (d->dma.status & RX_DMA_STATUS_ERROR) + rtap_vendor->rtap.flags |= IEEE80211_RADIOTAP_F_BADFCS; + + rtap_vendor->rtap.chnl_freq = cpu_to_le16(ch ? ch->center_freq : 58320); + rtap_vendor->rtap.chnl_flags = cpu_to_le16(0); + + rtap_vendor->rtap.mcs_present = IEEE80211_RADIOTAP_MCS_HAVE_MCS; + rtap_vendor->rtap.mcs_flags = 0; + rtap_vendor->rtap.mcs_index = wil_rxdesc_mcs(d); + + if (rtap_include_phy_info) { + rtap_vendor->rtap.rthdr.it_present |= cpu_to_le32(1 << + IEEE80211_RADIOTAP_VENDOR_NAMESPACE); + /* OUI for Wilocity 04:ce:14 */ + rtap_vendor->vendor_oui[0] = 0x04; + rtap_vendor->vendor_oui[1] = 0xce; + rtap_vendor->vendor_oui[2] = 0x14; + rtap_vendor->vendor_ns = 1; + /* Rx descriptor + PHY data */ + rtap_vendor->vendor_skip = cpu_to_le16(sizeof(*d) + + phy_length); + memcpy(rtap_vendor->vendor_data, (void *)d, sizeof(*d)); + memcpy(rtap_vendor->vendor_data + sizeof(*d), phy_data, + phy_length); + } +} + +/* + * Fast swap in place between 2 registers + */ +static void wil_swap_u16(u16 *a, u16 *b) +{ + *a ^= *b; + *b ^= *a; + *a ^= *b; +} + +static void wil_swap_ethaddr(void *data) +{ + struct ethhdr *eth = data; + u16 *s = (u16 *)eth->h_source; + u16 *d = (u16 *)eth->h_dest; + + wil_swap_u16(s++, d++); + wil_swap_u16(s++, d++); + wil_swap_u16(s, d); +} + +/** + * reap 1 frame from @swhead + * + * Safe to call from IRQ + */ +static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil, + struct vring *vring) +{ + struct device *dev = wil_to_dev(wil); + struct net_device *ndev = wil_to_ndev(wil); + volatile struct vring_rx_desc *d; + struct sk_buff *skb; + dma_addr_t pa; + unsigned int sz = RX_BUF_LEN; + u8 ftype; + u8 ds_bits; + + if (wil_vring_is_empty(vring)) + return NULL; + + d = &(vring->va[vring->swhead].rx); + if (!(d->dma.status & RX_DMA_STATUS_DU)) { + /* it is not error, we just reached end of Rx done area */ + return NULL; + } + + pa = d->dma.addr_low | ((u64)d->dma.addr_high << 32); + skb = vring->ctx[vring->swhead]; + dma_unmap_single(dev, pa, sz, DMA_FROM_DEVICE); + skb_trim(skb, d->dma.length); + + wil->stats.last_mcs_rx = wil_rxdesc_mcs(d); + + /* use radiotap header only if required */ + if (ndev->type == ARPHRD_IEEE80211_RADIOTAP) + wil_rx_add_radiotap_header(wil, skb, d); + + wil_dbg_TXRX(wil, "Rx[%3d] : %d bytes\n", vring->swhead, d->dma.length); + wil_hex_dump_TXRX("Rx ", DUMP_PREFIX_NONE, 32, 4, + (const void *)d, sizeof(*d), false); + + wil_vring_advance_head(vring, 1); + + /* no extra checks if in sniffer mode */ + if (ndev->type != ARPHRD_ETHER) + return skb; + /* + * Non-data frames may be delivered through Rx DMA channel (ex: BAR) + * Driver should recognize it by frame type, that is found + * in Rx descriptor. If type is not data, it is 802.11 frame as is + */ + ftype = wil_rxdesc_ftype(d) << 2; + if (ftype != IEEE80211_FTYPE_DATA) { + wil_dbg_TXRX(wil, "Non-data frame ftype 0x%08x\n", ftype); + /* TODO: process it */ + kfree_skb(skb); + return NULL; + } + + if (skb->len < ETH_HLEN) { + wil_err(wil, "Short frame, len = %d\n", skb->len); + /* TODO: process it (i.e. BAR) */ + kfree_skb(skb); + return NULL; + } + + ds_bits = wil_rxdesc_ds_bits(d); + if (ds_bits == 1) { + /* + * HW bug - in ToDS mode, i.e. Rx on AP side, + * addresses get swapped + */ + wil_swap_ethaddr(skb->data); + } + + return skb; +} + +/** + * allocate and fill up to @count buffers in rx ring + * buffers posted at @swtail + */ +static int wil_rx_refill(struct wil6210_priv *wil, int count) +{ + struct net_device *ndev = wil_to_ndev(wil); + struct vring *v = &wil->vring_rx; + u32 next_tail; + int rc = 0; + int headroom = ndev->type == ARPHRD_IEEE80211_RADIOTAP ? + WIL6210_RTAP_SIZE : 0; + + for (; next_tail = wil_vring_next_tail(v), + (next_tail != v->swhead) && (count-- > 0); + v->swtail = next_tail) { + rc = wil_vring_alloc_skb(wil, v, v->swtail, headroom); + if (rc) { + wil_err(wil, "Error %d in wil_rx_refill[%d]\n", + rc, v->swtail); + break; + } + } + iowrite32(v->swtail, wil->csr + HOSTADDR(v->hwtail)); + + return rc; +} + +/* + * Pass Rx packet to the netif. Update statistics. + */ +static void wil_netif_rx_any(struct sk_buff *skb, struct net_device *ndev) +{ + int rc; + unsigned int len = skb->len; + + if (in_interrupt()) + rc = netif_rx(skb); + else + rc = netif_rx_ni(skb); + + if (likely(rc == NET_RX_SUCCESS)) { + ndev->stats.rx_packets++; + ndev->stats.rx_bytes += len; + + } else { + ndev->stats.rx_dropped++; + } +} + +/** + * Proceed all completed skb's from Rx VRING + * + * Safe to call from IRQ + */ +void wil_rx_handle(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil_to_ndev(wil); + struct vring *v = &wil->vring_rx; + struct sk_buff *skb; + + if (!v->va) { + wil_err(wil, "Rx IRQ while Rx not yet initialized\n"); + return; + } + wil_dbg_TXRX(wil, "%s()\n", __func__); + while (NULL != (skb = wil_vring_reap_rx(wil, v))) { + wil_hex_dump_TXRX("Rx ", DUMP_PREFIX_OFFSET, 16, 1, + skb->data, skb_headlen(skb), false); + + skb_orphan(skb); + + if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR) { + skb->dev = ndev; + skb_reset_mac_header(skb); + skb->ip_summed = CHECKSUM_UNNECESSARY; + skb->pkt_type = PACKET_OTHERHOST; + skb->protocol = htons(ETH_P_802_2); + + } else { + skb->protocol = eth_type_trans(skb, ndev); + } + + wil_netif_rx_any(skb, ndev); + } + wil_rx_refill(wil, v->size); +} + +int wil_rx_init(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil_to_ndev(wil); + struct wireless_dev *wdev = wil->wdev; + struct vring *vring = &wil->vring_rx; + int rc; + struct wmi_cfg_rx_chain_cmd cmd = { + .action = WMI_RX_CHAIN_ADD, + .rx_sw_ring = { + .max_mpdu_size = cpu_to_le16(RX_BUF_LEN), + }, + .mid = 0, /* TODO - what is it? */ + .decap_trans_type = WMI_DECAP_TYPE_802_3, + }; + struct { + struct wil6210_mbox_hdr_wmi wmi; + struct wmi_cfg_rx_chain_done_event evt; + } __packed evt; + + vring->size = WIL6210_RX_RING_SIZE; + rc = wil_vring_alloc(wil, vring); + if (rc) + return rc; + + cmd.rx_sw_ring.ring_mem_base = cpu_to_le64(vring->pa); + cmd.rx_sw_ring.ring_size = cpu_to_le16(vring->size); + if (wdev->iftype == NL80211_IFTYPE_MONITOR) { + struct ieee80211_channel *ch = wdev->preset_chandef.chan; + + cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON); + if (ch) + cmd.sniffer_cfg.channel = ch->hw_value - 1; + cmd.sniffer_cfg.phy_info_mode = + cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP); + cmd.sniffer_cfg.phy_support = + cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL) + ? WMI_SNIFFER_CP : WMI_SNIFFER_DP); + } + /* typical time for secure PCP is 840ms */ + rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), + WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000); + if (rc) + goto err_free; + + vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr); + + wil_dbg(wil, "Rx init: status %d tail 0x%08x\n", + le32_to_cpu(evt.evt.status), vring->hwtail); + + rc = wil_rx_refill(wil, vring->size); + if (rc) + goto err_free; + + return 0; + err_free: + wil_vring_free(wil, vring, 0); + + return rc; +} + +void wil_rx_fini(struct wil6210_priv *wil) +{ + struct vring *vring = &wil->vring_rx; + + if (vring->va) { + int rc; + struct wmi_cfg_rx_chain_cmd cmd = { + .action = cpu_to_le32(WMI_RX_CHAIN_DEL), + .rx_sw_ring = { + .max_mpdu_size = cpu_to_le16(RX_BUF_LEN), + }, + }; + struct { + struct wil6210_mbox_hdr_wmi wmi; + struct wmi_cfg_rx_chain_done_event cfg; + } __packed wmi_rx_cfg_reply; + + rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd), + WMI_CFG_RX_CHAIN_DONE_EVENTID, + &wmi_rx_cfg_reply, sizeof(wmi_rx_cfg_reply), + 100); + wil_vring_free(wil, vring, 0); + } +} + +int wil_vring_init_tx(struct wil6210_priv *wil, int id, int size, + int cid, int tid) +{ + int rc; + struct wmi_vring_cfg_cmd cmd = { + .action = cpu_to_le32(WMI_VRING_CMD_ADD), + .vring_cfg = { + .tx_sw_ring = { + .max_mpdu_size = cpu_to_le16(TX_BUF_LEN), + }, + .ringid = id, + .cidxtid = (cid & 0xf) | ((tid & 0xf) << 4), + .encap_trans_type = WMI_VRING_ENC_TYPE_802_3, + .mac_ctrl = 0, + .to_resolution = 0, + .agg_max_wsize = 16, + .schd_params = { + .priority = cpu_to_le16(0), + .timeslot_us = cpu_to_le16(0xfff), + }, + }, + }; + struct { + struct wil6210_mbox_hdr_wmi wmi; + struct wmi_vring_cfg_done_event cmd; + } __packed reply; + struct vring *vring = &wil->vring_tx[id]; + + if (vring->va) { + wil_err(wil, "Tx ring [%d] already allocated\n", id); + rc = -EINVAL; + goto out; + } + + vring->size = size; + rc = wil_vring_alloc(wil, vring); + if (rc) + goto out; + + cmd.vring_cfg.tx_sw_ring.ring_mem_base = cpu_to_le64(vring->pa); + cmd.vring_cfg.tx_sw_ring.ring_size = cpu_to_le16(vring->size); + + rc = wmi_call(wil, WMI_VRING_CFG_CMDID, &cmd, sizeof(cmd), + WMI_VRING_CFG_DONE_EVENTID, &reply, sizeof(reply), 100); + if (rc) + goto out_free; + + if (reply.cmd.status != WMI_VRING_CFG_SUCCESS) { + wil_err(wil, "Tx config failed, status 0x%02x\n", + reply.cmd.status); + goto out_free; + } + vring->hwtail = le32_to_cpu(reply.cmd.tx_vring_tail_ptr); + + return 0; + out_free: + wil_vring_free(wil, vring, 1); + out: + + return rc; +} + +void wil_vring_fini_tx(struct wil6210_priv *wil, int id) +{ + struct vring *vring = &wil->vring_tx[id]; + + if (!vring->va) + return; + + wil_vring_free(wil, vring, 1); +} + +static struct vring *wil_find_tx_vring(struct wil6210_priv *wil, + struct sk_buff *skb) +{ + struct vring *v = &wil->vring_tx[0]; + + if (v->va) + return v; + + return NULL; +} + +static int wil_tx_desc_map(volatile struct vring_tx_desc *d, + dma_addr_t pa, u32 len) +{ + d->dma.addr_low = lower_32_bits(pa); + d->dma.addr_high = (u16)upper_32_bits(pa); + d->dma.ip_length = 0; + /* 0..6: mac_length; 7:ip_version 0-IP6 1-IP4*/ + d->dma.b11 = 0/*14 | BIT(7)*/; + d->dma.error = 0; + d->dma.status = 0; /* BIT(0) should be 0 for HW_OWNED */ + d->dma.length = len; + d->dma.d0 = 0; + d->mac.d[0] = 0; + d->mac.d[1] = 0; + d->mac.d[2] = 0; + d->mac.ucode_cmd = 0; + /* use dst index 0 */ + d->mac.d[1] |= BIT(MAC_CFG_DESC_TX_1_DST_INDEX_EN_POS) | + (0 << MAC_CFG_DESC_TX_1_DST_INDEX_POS); + /* translation type: 0 - bypass; 1 - 802.3; 2 - native wifi */ + d->mac.d[2] = BIT(MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_POS) | + (1 << MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_POS); + + return 0; +} + +static int wil_tx_vring(struct wil6210_priv *wil, struct vring *vring, + struct sk_buff *skb) +{ + struct device *dev = wil_to_dev(wil); + volatile struct vring_tx_desc *d; + u32 swhead = vring->swhead; + int avail = wil_vring_avail_tx(vring); + int nr_frags = skb_shinfo(skb)->nr_frags; + uint f; + int vring_index = vring - wil->vring_tx; + uint i = swhead; + dma_addr_t pa; + + wil_dbg_TXRX(wil, "%s()\n", __func__); + + if (avail < vring->size/8) + netif_tx_stop_all_queues(wil_to_ndev(wil)); + if (avail < 1 + nr_frags) { + wil_err(wil, "Tx ring full. No space for %d fragments\n", + 1 + nr_frags); + return -ENOMEM; + } + d = &(vring->va[i].tx); + + /* FIXME FW can accept only unicast frames for the peer */ + memcpy(skb->data, wil->dst_addr[vring_index], ETH_ALEN); + + pa = dma_map_single(dev, skb->data, + skb_headlen(skb), DMA_TO_DEVICE); + + wil_dbg_TXRX(wil, "Tx skb %d bytes %p -> %#08llx\n", skb_headlen(skb), + skb->data, (unsigned long long)pa); + wil_hex_dump_TXRX("Tx ", DUMP_PREFIX_OFFSET, 16, 1, + skb->data, skb_headlen(skb), false); + + if (unlikely(dma_mapping_error(dev, pa))) + return -EINVAL; + /* 1-st segment */ + wil_tx_desc_map(d, pa, skb_headlen(skb)); + d->mac.d[2] |= ((nr_frags + 1) << + MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_POS); + /* middle segments */ + for (f = 0; f < nr_frags; f++) { + const struct skb_frag_struct *frag = + &skb_shinfo(skb)->frags[f]; + int len = skb_frag_size(frag); + i = (swhead + f + 1) % vring->size; + d = &(vring->va[i].tx); + pa = skb_frag_dma_map(dev, frag, 0, skb_frag_size(frag), + DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev, pa))) + goto dma_error; + wil_tx_desc_map(d, pa, len); + vring->ctx[i] = NULL; + } + /* for the last seg only */ + d->dma.d0 |= BIT(DMA_CFG_DESC_TX_0_CMD_EOP_POS); + d->dma.d0 |= BIT(9); /* BUG: undocumented bit */ + d->dma.d0 |= BIT(DMA_CFG_DESC_TX_0_CMD_DMA_IT_POS); + d->dma.d0 |= (vring_index << DMA_CFG_DESC_TX_0_QID_POS); + + wil_hex_dump_TXRX("Tx ", DUMP_PREFIX_NONE, 32, 4, + (const void *)d, sizeof(*d), false); + + /* advance swhead */ + wil_vring_advance_head(vring, nr_frags + 1); + wil_dbg_TXRX(wil, "Tx swhead %d -> %d\n", swhead, vring->swhead); + iowrite32(vring->swhead, wil->csr + HOSTADDR(vring->hwtail)); + /* hold reference to skb + * to prevent skb release before accounting + * in case of immediate "tx done" + */ + vring->ctx[i] = skb_get(skb); + + return 0; + dma_error: + /* unmap what we have mapped */ + /* Note: increment @f to operate with positive index */ + for (f++; f > 0; f--) { + i = (swhead + f) % vring->size; + d = &(vring->va[i].tx); + d->dma.status = TX_DMA_STATUS_DU; + pa = d->dma.addr_low | ((u64)d->dma.addr_high << 32); + if (vring->ctx[i]) + dma_unmap_single(dev, pa, d->dma.length, DMA_TO_DEVICE); + else + dma_unmap_page(dev, pa, d->dma.length, DMA_TO_DEVICE); + } + + return -EINVAL; +} + + +netdev_tx_t wil_start_xmit(struct sk_buff *skb, struct net_device *ndev) +{ + struct wil6210_priv *wil = ndev_to_wil(ndev); + struct vring *vring; + int rc; + + wil_dbg_TXRX(wil, "%s()\n", __func__); + if (!test_bit(wil_status_fwready, &wil->status)) { + wil_err(wil, "FW not ready\n"); + goto drop; + } + if (!test_bit(wil_status_fwconnected, &wil->status)) { + wil_err(wil, "FW not connected\n"); + goto drop; + } + if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR) { + wil_err(wil, "Xmit in monitor mode not supported\n"); + goto drop; + } + if (skb->protocol == cpu_to_be16(ETH_P_PAE)) { + rc = wmi_tx_eapol(wil, skb); + } else { + /* find vring */ + vring = wil_find_tx_vring(wil, skb); + if (!vring) { + wil_err(wil, "No Tx VRING available\n"); + goto drop; + } + /* set up vring entry */ + rc = wil_tx_vring(wil, vring, skb); + } + switch (rc) { + case 0: + ndev->stats.tx_packets++; + ndev->stats.tx_bytes += skb->len; + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + case -ENOMEM: + return NETDEV_TX_BUSY; + default: + ; /* goto drop; */ + break; + } + drop: + netif_tx_stop_all_queues(ndev); + ndev->stats.tx_dropped++; + dev_kfree_skb_any(skb); + + return NET_XMIT_DROP; +} + +/** + * Clean up transmitted skb's from the Tx VRING + * + * Safe to call from IRQ + */ +void wil_tx_complete(struct wil6210_priv *wil, int ringid) +{ + struct device *dev = wil_to_dev(wil); + struct vring *vring = &wil->vring_tx[ringid]; + + if (!vring->va) { + wil_err(wil, "Tx irq[%d]: vring not initialized\n", ringid); + return; + } + + wil_dbg_TXRX(wil, "%s(%d)\n", __func__, ringid); + + while (!wil_vring_is_empty(vring)) { + volatile struct vring_tx_desc *d = &vring->va[vring->swtail].tx; + dma_addr_t pa; + struct sk_buff *skb; + if (!(d->dma.status & TX_DMA_STATUS_DU)) + break; + + wil_dbg_TXRX(wil, + "Tx[%3d] : %d bytes, status 0x%02x err 0x%02x\n", + vring->swtail, d->dma.length, d->dma.status, + d->dma.error); + wil_hex_dump_TXRX("TxC ", DUMP_PREFIX_NONE, 32, 4, + (const void *)d, sizeof(*d), false); + + pa = d->dma.addr_low | ((u64)d->dma.addr_high << 32); + skb = vring->ctx[vring->swtail]; + if (skb) { + dma_unmap_single(dev, pa, d->dma.length, DMA_TO_DEVICE); + dev_kfree_skb_any(skb); + vring->ctx[vring->swtail] = NULL; + } else { + dma_unmap_page(dev, pa, d->dma.length, DMA_TO_DEVICE); + } + d->dma.addr_low = 0; + d->dma.addr_high = 0; + d->dma.length = 0; + d->dma.status = TX_DMA_STATUS_DU; + vring->swtail = wil_vring_next_tail(vring); + } + if (wil_vring_avail_tx(vring) > vring->size/4) + netif_tx_wake_all_queues(wil_to_ndev(wil)); +} diff --git a/drivers/net/wireless/ath/wil6210/txrx.h b/drivers/net/wireless/ath/wil6210/txrx.h new file mode 100644 index 0000000..45a61f5 --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/txrx.h @@ -0,0 +1,362 @@ +/* + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef WIL6210_TXRX_H +#define WIL6210_TXRX_H + +#define BUF_SW_OWNED (1) +#define BUF_HW_OWNED (0) + +/* size of max. Rx packet */ +#define RX_BUF_LEN (2048) +#define TX_BUF_LEN (2048) +/* how many bytes to reserve for rtap header? */ +#define WIL6210_RTAP_SIZE (128) + +/* Tx/Rx path */ +/* + * Tx descriptor - MAC part + * [dword 0] + * bit 0.. 9 : lifetime_expiry_value:10 + * bit 10 : interrup_en:1 + * bit 11 : status_en:1 + * bit 12..13 : txss_override:2 + * bit 14 : timestamp_insertion:1 + * bit 15 : duration_preserve:1 + * bit 16..21 : reserved0:6 + * bit 22..26 : mcs_index:5 + * bit 27 : mcs_en:1 + * bit 28..29 : reserved1:2 + * bit 30 : reserved2:1 + * bit 31 : sn_preserved:1 + * [dword 1] + * bit 0.. 3 : pkt_mode:4 + * bit 4 : pkt_mode_en:1 + * bit 5.. 7 : reserved0:3 + * bit 8..13 : reserved1:6 + * bit 14 : reserved2:1 + * bit 15 : ack_policy_en:1 + * bit 16..19 : dst_index:4 + * bit 20 : dst_index_en:1 + * bit 21..22 : ack_policy:2 + * bit 23 : lifetime_en:1 + * bit 24..30 : max_retry:7 + * bit 31 : max_retry_en:1 + * [dword 2] + * bit 0.. 7 : num_of_descriptors:8 + * bit 8..17 : reserved:10 + * bit 18..19 : l2_translation_type:2 + * bit 20 : snap_hdr_insertion_en:1 + * bit 21 : vlan_removal_en:1 + * bit 22..31 : reserved0:10 + * [dword 3] + * bit 0.. 31: ucode_cmd:32 + */ +struct vring_tx_mac { + u32 d[3]; + u32 ucode_cmd; +} __packed; + +/* TX MAC Dword 0 */ +#define MAC_CFG_DESC_TX_0_LIFETIME_EXPIRY_VALUE_POS 0 +#define MAC_CFG_DESC_TX_0_LIFETIME_EXPIRY_VALUE_LEN 10 +#define MAC_CFG_DESC_TX_0_LIFETIME_EXPIRY_VALUE_MSK 0x3FF + +#define MAC_CFG_DESC_TX_0_INTERRUP_EN_POS 10 +#define MAC_CFG_DESC_TX_0_INTERRUP_EN_LEN 1 +#define MAC_CFG_DESC_TX_0_INTERRUP_EN_MSK 0x400 + +#define MAC_CFG_DESC_TX_0_STATUS_EN_POS 11 +#define MAC_CFG_DESC_TX_0_STATUS_EN_LEN 1 +#define MAC_CFG_DESC_TX_0_STATUS_EN_MSK 0x800 + +#define MAC_CFG_DESC_TX_0_TXSS_OVERRIDE_POS 12 +#define MAC_CFG_DESC_TX_0_TXSS_OVERRIDE_LEN 2 +#define MAC_CFG_DESC_TX_0_TXSS_OVERRIDE_MSK 0x3000 + +#define MAC_CFG_DESC_TX_0_TIMESTAMP_INSERTION_POS 14 +#define MAC_CFG_DESC_TX_0_TIMESTAMP_INSERTION_LEN 1 +#define MAC_CFG_DESC_TX_0_TIMESTAMP_INSERTION_MSK 0x4000 + +#define MAC_CFG_DESC_TX_0_DURATION_PRESERVE_POS 15 +#define MAC_CFG_DESC_TX_0_DURATION_PRESERVE_LEN 1 +#define MAC_CFG_DESC_TX_0_DURATION_PRESERVE_MSK 0x8000 + +#define MAC_CFG_DESC_TX_0_MCS_INDEX_POS 22 +#define MAC_CFG_DESC_TX_0_MCS_INDEX_LEN 5 +#define MAC_CFG_DESC_TX_0_MCS_INDEX_MSK 0x7C00000 + +#define MAC_CFG_DESC_TX_0_MCS_EN_POS 27 +#define MAC_CFG_DESC_TX_0_MCS_EN_LEN 1 +#define MAC_CFG_DESC_TX_0_MCS_EN_MSK 0x8000000 + +#define MAC_CFG_DESC_TX_0_SN_PRESERVED_POS 31 +#define MAC_CFG_DESC_TX_0_SN_PRESERVED_LEN 1 +#define MAC_CFG_DESC_TX_0_SN_PRESERVED_MSK 0x80000000 + +/* TX MAC Dword 1 */ +#define MAC_CFG_DESC_TX_1_PKT_MODE_POS 0 +#define MAC_CFG_DESC_TX_1_PKT_MODE_LEN 4 +#define MAC_CFG_DESC_TX_1_PKT_MODE_MSK 0xF + +#define MAC_CFG_DESC_TX_1_PKT_MODE_EN_POS 4 +#define MAC_CFG_DESC_TX_1_PKT_MODE_EN_LEN 1 +#define MAC_CFG_DESC_TX_1_PKT_MODE_EN_MSK 0x10 + +#define MAC_CFG_DESC_TX_1_ACK_POLICY_EN_POS 15 +#define MAC_CFG_DESC_TX_1_ACK_POLICY_EN_LEN 1 +#define MAC_CFG_DESC_TX_1_ACK_POLICY_EN_MSK 0x8000 + +#define MAC_CFG_DESC_TX_1_DST_INDEX_POS 16 +#define MAC_CFG_DESC_TX_1_DST_INDEX_LEN 4 +#define MAC_CFG_DESC_TX_1_DST_INDEX_MSK 0xF0000 + +#define MAC_CFG_DESC_TX_1_DST_INDEX_EN_POS 20 +#define MAC_CFG_DESC_TX_1_DST_INDEX_EN_LEN 1 +#define MAC_CFG_DESC_TX_1_DST_INDEX_EN_MSK 0x100000 + +#define MAC_CFG_DESC_TX_1_ACK_POLICY_POS 21 +#define MAC_CFG_DESC_TX_1_ACK_POLICY_LEN 2 +#define MAC_CFG_DESC_TX_1_ACK_POLICY_MSK 0x600000 + +#define MAC_CFG_DESC_TX_1_LIFETIME_EN_POS 23 +#define MAC_CFG_DESC_TX_1_LIFETIME_EN_LEN 1 +#define MAC_CFG_DESC_TX_1_LIFETIME_EN_MSK 0x800000 + +#define MAC_CFG_DESC_TX_1_MAX_RETRY_POS 24 +#define MAC_CFG_DESC_TX_1_MAX_RETRY_LEN 7 +#define MAC_CFG_DESC_TX_1_MAX_RETRY_MSK 0x7F000000 + +#define MAC_CFG_DESC_TX_1_MAX_RETRY_EN_POS 31 +#define MAC_CFG_DESC_TX_1_MAX_RETRY_EN_LEN 1 +#define MAC_CFG_DESC_TX_1_MAX_RETRY_EN_MSK 0x80000000 + +/* TX MAC Dword 2 */ +#define MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_POS 0 +#define MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_LEN 8 +#define MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_MSK 0xFF + +#define MAC_CFG_DESC_TX_2_RESERVED_POS 8 +#define MAC_CFG_DESC_TX_2_RESERVED_LEN 10 +#define MAC_CFG_DESC_TX_2_RESERVED_MSK 0x3FF00 + +#define MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_POS 18 +#define MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_LEN 2 +#define MAC_CFG_DESC_TX_2_L2_TRANSLATION_TYPE_MSK 0xC0000 + +#define MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_POS 20 +#define MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_LEN 1 +#define MAC_CFG_DESC_TX_2_SNAP_HDR_INSERTION_EN_MSK 0x100000 + +#define MAC_CFG_DESC_TX_2_VLAN_REMOVAL_EN_POS 21 +#define MAC_CFG_DESC_TX_2_VLAN_REMOVAL_EN_LEN 1 +#define MAC_CFG_DESC_TX_2_VLAN_REMOVAL_EN_MSK 0x200000 + +/* TX MAC Dword 3 */ +#define MAC_CFG_DESC_TX_3_UCODE_CMD_POS 0 +#define MAC_CFG_DESC_TX_3_UCODE_CMD_LEN 32 +#define MAC_CFG_DESC_TX_3_UCODE_CMD_MSK 0xFFFFFFFF + +/* TX DMA Dword 0 */ +#define DMA_CFG_DESC_TX_0_L4_LENGTH_POS 0 +#define DMA_CFG_DESC_TX_0_L4_LENGTH_LEN 8 +#define DMA_CFG_DESC_TX_0_L4_LENGTH_MSK 0xFF + +#define DMA_CFG_DESC_TX_0_CMD_EOP_POS 8 +#define DMA_CFG_DESC_TX_0_CMD_EOP_LEN 1 +#define DMA_CFG_DESC_TX_0_CMD_EOP_MSK 0x100 + +#define DMA_CFG_DESC_TX_0_CMD_DMA_IT_POS 10 +#define DMA_CFG_DESC_TX_0_CMD_DMA_IT_LEN 1 +#define DMA_CFG_DESC_TX_0_CMD_DMA_IT_MSK 0x400 + +#define DMA_CFG_DESC_TX_0_SEGMENT_BUF_DETAILS_POS 11 +#define DMA_CFG_DESC_TX_0_SEGMENT_BUF_DETAILS_LEN 2 +#define DMA_CFG_DESC_TX_0_SEGMENT_BUF_DETAILS_MSK 0x1800 + +#define DMA_CFG_DESC_TX_0_TCP_SEG_EN_POS 13 +#define DMA_CFG_DESC_TX_0_TCP_SEG_EN_LEN 1 +#define DMA_CFG_DESC_TX_0_TCP_SEG_EN_MSK 0x2000 + +#define DMA_CFG_DESC_TX_0_IPV4_CHECKSUM_EN_POS 14 +#define DMA_CFG_DESC_TX_0_IPV4_CHECKSUM_EN_LEN 1 +#define DMA_CFG_DESC_TX_0_IPV4_CHECKSUM_EN_MSK 0x4000 + +#define DMA_CFG_DESC_TX_0_TCP_UDP_CHECKSUM_EN_POS 15 +#define DMA_CFG_DESC_TX_0_TCP_UDP_CHECKSUM_EN_LEN 1 +#define DMA_CFG_DESC_TX_0_TCP_UDP_CHECKSUM_EN_MSK 0x8000 + +#define DMA_CFG_DESC_TX_0_QID_POS 16 +#define DMA_CFG_DESC_TX_0_QID_LEN 5 +#define DMA_CFG_DESC_TX_0_QID_MSK 0x1F0000 + +#define DMA_CFG_DESC_TX_0_PSEUDO_HEADER_CALC_EN_POS 21 +#define DMA_CFG_DESC_TX_0_PSEUDO_HEADER_CALC_EN_LEN 1 +#define DMA_CFG_DESC_TX_0_PSEUDO_HEADER_CALC_EN_MSK 0x200000 + +#define DMA_CFG_DESC_TX_0_L4_TYPE_POS 30 +#define DMA_CFG_DESC_TX_0_L4_TYPE_LEN 2 +#define DMA_CFG_DESC_TX_0_L4_TYPE_MSK 0xC0000000 + + +#define TX_DMA_STATUS_DU BIT(0) + +struct vring_tx_dma { + u32 d0; + u32 addr_low; + u16 addr_high; + u8 ip_length; + u8 b11; /* 0..6: mac_length; 7:ip_version */ + u8 error; /* 0..2: err; 3..7: reserved; */ + u8 status; /* 0: used; 1..7; reserved */ + u16 length; +} __packed; + +/* + * Rx descriptor - MAC part + * [dword 0] + * bit 0.. 3 : tid:4 The QoS (b3-0) TID Field + * bit 4.. 6 : connection_id:3 :The Source index that was found during + * Parsing the TA. This field is used to define the source of the packet + * bit 7 : reserved:1 + * bit 8.. 9 : mac_id:2 : The MAC virtual Ring number (always zero) + * bit 10..11 : frame_type:2 : The FC Control (b3-2) - MPDU Type + * (management, data, control and extension) + * bit 12..15 : frame_subtype:4 : The FC Control (b7-4) - Frame Subtype + * bit 16..27 : seq_number:12 The received Sequence number field + * bit 28..31 : extended:4 extended subtype + * [dword 1] + * bit 0.. 3 : reserved + * bit 4.. 5 : key_id:2 + * bit 6 : decrypt_bypass:1 + * bit 7 : security:1 + * bit 8.. 9 : ds_bits:2 + * bit 10 : a_msdu_present:1 from qos header + * bit 11 : a_msdu_type:1 from qos header + * bit 12 : a_mpdu:1 part of AMPDU aggregation + * bit 13 : broadcast:1 + * bit 14 : mutlicast:1 + * bit 15 : reserved:1 + * bit 16..20 : rx_mac_qid:5 The Queue Identifier that the packet + * is received from + * bit 21..24 : mcs:4 + * bit 25..28 : mic_icr:4 + * bit 29..31 : reserved:3 + * [dword 2] + * bit 0.. 2 : time_slot:3 The timeslot that the MPDU is received + * bit 3 : fc_protocol_ver:1 The FC Control (b0) - Protocol Version + * bit 4 : fc_order:1 The FC Control (b15) -Order + * bit 5.. 7 : qos_ack_policy:3 The QoS (b6-5) ack policy Field + * bit 8 : esop:1 The QoS (b4) ESOP field + * bit 9 : qos_rdg_more_ppdu:1 The QoS (b9) RDG field + * bit 10..14 : qos_reserved:5 The QoS (b14-10) Reserved field + * bit 15 : qos_ac_constraint:1 + * bit 16..31 : pn_15_0:16 low 2 bytes of PN + * [dword 3] + * bit 0..31 : pn_47_16:32 high 4 bytes of PN + */ +struct vring_rx_mac { + u32 d0; + u32 d1; + u16 w4; + u16 pn_15_0; + u32 pn_47_16; +} __packed; + +/* + * Rx descriptor - DMA part + * [dword 0] + * bit 0.. 7 : l4_length:8 layer 4 length + * bit 8.. 9 : reserved:2 + * bit 10 : cmd_dma_it:1 + * bit 11..15 : reserved:5 + * bit 16..29 : phy_info_length:14 + * bit 30..31 : l4_type:2 valid if the L4I bit is set in the status field + * [dword 1] + * bit 0..31 : addr_low:32 The payload buffer low address + * [dword 2] + * bit 0..15 : addr_high:16 The payload buffer high address + * bit 16..23 : ip_length:8 + * bit 24..30 : mac_length:7 + * bit 31 : ip_version:1 + * [dword 3] + * [byte 12] error + * [byte 13] status + * bit 0 : du:1 + * bit 1 : eop:1 + * bit 2 : error:1 + * bit 3 : mi:1 + * bit 4 : l3_identified:1 + * bit 5 : l4_identified:1 + * bit 6 : phy_info_included:1 + * bit 7 : reserved:1 + * [word 7] length + * + */ + +#define RX_DMA_D0_CMD_DMA_IT BIT(10) + +#define RX_DMA_STATUS_DU BIT(0) +#define RX_DMA_STATUS_ERROR BIT(2) +#define RX_DMA_STATUS_PHY_INFO BIT(6) + +struct vring_rx_dma { + u32 d0; + u32 addr_low; + u16 addr_high; + u8 ip_length; + u8 b11; + u8 error; + u8 status; + u16 length; +} __packed; + +struct vring_tx_desc { + struct vring_tx_mac mac; + struct vring_tx_dma dma; +} __packed; + +struct vring_rx_desc { + struct vring_rx_mac mac; + struct vring_rx_dma dma; +} __packed; + +union vring_desc { + struct vring_tx_desc tx; + struct vring_rx_desc rx; +} __packed; + +static inline int wil_rxdesc_phy_length(volatile struct vring_rx_desc *d) +{ + return WIL_GET_BITS(d->dma.d0, 16, 29); +} + +static inline int wil_rxdesc_mcs(volatile struct vring_rx_desc *d) +{ + return WIL_GET_BITS(d->mac.d1, 21, 24); +} + +static inline int wil_rxdesc_ds_bits(volatile struct vring_rx_desc *d) +{ + return WIL_GET_BITS(d->mac.d1, 8, 9); +} + +static inline int wil_rxdesc_ftype(volatile struct vring_rx_desc *d) +{ + return WIL_GET_BITS(d->mac.d0, 10, 11); +} + +#endif /* WIL6210_TXRX_H */ diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h new file mode 100644 index 0000000..9bcfffa --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/wil6210.h @@ -0,0 +1,363 @@ +/* + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef __WIL6210_H__ +#define __WIL6210_H__ + +#include +#include +#include + +#include "dbg_hexdump.h" + +#define WIL_NAME "wil6210" + +/** + * extract bits [@b0:@b1] (inclusive) from the value @x + * it should be @b0 <= @b1, or result is incorrect + */ +static inline u32 WIL_GET_BITS(u32 x, int b0, int b1) +{ + return (x >> b0) & ((1 << (b1 - b0 + 1)) - 1); +} + +#define WIL6210_MEM_SIZE (2*1024*1024UL) + +#define WIL6210_TX_QUEUES (4) + +#define WIL6210_RX_RING_SIZE (128) +#define WIL6210_TX_RING_SIZE (128) +#define WIL6210_MAX_TX_RINGS (24) + +/* Hardware definitions begin */ + +/* + * Mapping + * RGF File | Host addr | FW addr + * | | + * user_rgf | 0x000000 | 0x880000 + * dma_rgf | 0x001000 | 0x881000 + * pcie_rgf | 0x002000 | 0x882000 + * | | + */ + +/* Where various structures placed in host address space */ +#define WIL6210_FW_HOST_OFF (0x880000UL) + +#define HOSTADDR(fwaddr) (fwaddr - WIL6210_FW_HOST_OFF) + +/* + * Interrupt control registers block + * + * each interrupt controlled by the same bit in all registers + */ +struct RGF_ICR { + u32 ICC; /* Cause Control, RW: 0 - W1C, 1 - COR */ + u32 ICR; /* Cause, W1C/COR depending on ICC */ + u32 ICM; /* Cause masked (ICR & ~IMV), W1C/COR depending on ICC */ + u32 ICS; /* Cause Set, WO */ + u32 IMV; /* Mask, RW+S/C */ + u32 IMS; /* Mask Set, write 1 to set */ + u32 IMC; /* Mask Clear, write 1 to clear */ +} __packed; + +/* registers - FW addresses */ +#define RGF_USER_USER_SCRATCH_PAD (0x8802bc) +#define RGF_USER_USER_ICR (0x880b4c) /* struct RGF_ICR */ + #define BIT_USER_USER_ICR_SW_INT_2 BIT(18) +#define RGF_USER_CLKS_CTL_SW_RST_MASK_0 (0x880b14) +#define RGF_USER_MAC_CPU_0 (0x8801fc) +#define RGF_USER_USER_CPU_0 (0x8801e0) +#define RGF_USER_CLKS_CTL_SW_RST_VEC_0 (0x880b04) +#define RGF_USER_CLKS_CTL_SW_RST_VEC_1 (0x880b08) +#define RGF_USER_CLKS_CTL_SW_RST_VEC_2 (0x880b0c) +#define RGF_USER_CLKS_CTL_SW_RST_VEC_3 (0x880b10) + +#define RGF_DMA_PSEUDO_CAUSE (0x881c68) +#define RGF_DMA_PSEUDO_CAUSE_MASK_SW (0x881c6c) +#define RGF_DMA_PSEUDO_CAUSE_MASK_FW (0x881c70) + #define BIT_DMA_PSEUDO_CAUSE_RX BIT(0) + #define BIT_DMA_PSEUDO_CAUSE_TX BIT(1) + #define BIT_DMA_PSEUDO_CAUSE_MISC BIT(2) + +#define RGF_DMA_EP_TX_ICR (0x881bb4) /* struct RGF_ICR */ + #define BIT_DMA_EP_TX_ICR_TX_DONE BIT(0) + #define BIT_DMA_EP_TX_ICR_TX_DONE_N(n) BIT(n+1) /* n = [0..23] */ +#define RGF_DMA_EP_RX_ICR (0x881bd0) /* struct RGF_ICR */ + #define BIT_DMA_EP_RX_ICR_RX_DONE BIT(0) +#define RGF_DMA_EP_MISC_ICR (0x881bec) /* struct RGF_ICR */ + #define BIT_DMA_EP_MISC_ICR_RX_HTRSH BIT(0) + #define BIT_DMA_EP_MISC_ICR_TX_NO_ACT BIT(1) + #define BIT_DMA_EP_MISC_ICR_FW_INT0 BIT(28) + #define BIT_DMA_EP_MISC_ICR_FW_INT1 BIT(29) + +/* Interrupt moderation control */ +#define RGF_DMA_ITR_CNT_TRSH (0x881c5c) +#define RGF_DMA_ITR_CNT_DATA (0x881c60) +#define RGF_DMA_ITR_CNT_CRL (0x881C64) + #define BIT_DMA_ITR_CNT_CRL_EN BIT(0) + #define BIT_DMA_ITR_CNT_CRL_EXT_TICK BIT(1) + #define BIT_DMA_ITR_CNT_CRL_FOREVER BIT(2) + #define BIT_DMA_ITR_CNT_CRL_CLR BIT(3) + #define BIT_DMA_ITR_CNT_CRL_REACH_TRSH BIT(4) + +/* popular locations */ +#define HOST_MBOX HOSTADDR(RGF_USER_USER_SCRATCH_PAD) +#define HOST_SW_INT (HOSTADDR(RGF_USER_USER_ICR) + \ + offsetof(struct RGF_ICR, ICS)) +#define SW_INT_MBOX BIT_USER_USER_ICR_SW_INT_2 + +/* ISR register bits */ +#define ISR_MISC_FW_READY BIT_DMA_EP_MISC_ICR_FW_INT0 +#define ISR_MISC_MBOX_EVT BIT_DMA_EP_MISC_ICR_FW_INT1 + +/* Hardware definitions end */ + +struct wil6210_mbox_ring { + u32 base; + u16 entry_size; /* max. size of mbox entry, incl. all headers */ + u16 size; + u32 tail; + u32 head; +} __packed; + +struct wil6210_mbox_ring_desc { + __le32 sync; + __le32 addr; +} __packed; + +/* at HOST_OFF_WIL6210_MBOX_CTL */ +struct wil6210_mbox_ctl { + struct wil6210_mbox_ring tx; + struct wil6210_mbox_ring rx; +} __packed; + +struct wil6210_mbox_hdr { + __le16 seq; + __le16 len; /* payload, bytes after this header */ + __le16 type; + u8 flags; + u8 reserved; +} __packed; + +#define WIL_MBOX_HDR_TYPE_WMI (0) + +/* max. value for wil6210_mbox_hdr.len */ +#define MAX_MBOXITEM_SIZE (240) + +struct wil6210_mbox_hdr_wmi { + u8 reserved0[2]; + __le16 id; + __le16 info1; /* bits [0..3] - device_id, rest - unused */ + u8 reserved1[2]; +} __packed; + +struct pending_wmi_event { + struct list_head list; + struct { + struct wil6210_mbox_hdr hdr; + struct wil6210_mbox_hdr_wmi wmi; + u8 data[0]; + } __packed event; +}; + +union vring_desc; + +struct vring { + dma_addr_t pa; + volatile union vring_desc *va; /* vring_desc[size], WriteBack by DMA */ + u16 size; /* number of vring_desc elements */ + u32 swtail; + u32 swhead; + u32 hwtail; /* write here to inform hw */ + void **ctx; /* void *ctx[size] - software context */ +}; + +enum { /* for wil6210_priv.status */ + wil_status_fwready = 0, + wil_status_fwconnected, + wil_status_dontscan, + wil_status_irqen, /* FIXME: interrupts enabled - for debug */ +}; + +struct pci_dev; + +struct wil6210_stats { + u64 tsf; + u32 snr; + u16 last_mcs_rx; + u16 bf_mcs; /* last BF, used for Tx */ + u16 my_rx_sector; + u16 my_tx_sector; + u16 peer_rx_sector; + u16 peer_tx_sector; +}; + +struct wil6210_priv { + struct pci_dev *pdev; + int n_msi; + struct wireless_dev *wdev; + void __iomem *csr; + ulong status; + /* profile */ + u32 monitor_flags; + u32 secure_pcp; /* create secure PCP? */ + int sinfo_gen; + /* cached ISR registers */ + u32 isr_misc; + /* mailbox related */ + struct mutex wmi_mutex; + struct wil6210_mbox_ctl mbox_ctl; + struct completion wmi_ready; + u16 wmi_seq; + u16 reply_id; /**< wait for this WMI event */ + void *reply_buf; + u16 reply_size; + struct workqueue_struct *wmi_wq; /* for deferred calls */ + struct work_struct wmi_event_worker; + struct workqueue_struct *wmi_wq_conn; /* for connect worker */ + struct work_struct wmi_connect_worker; + struct work_struct disconnect_worker; + struct timer_list connect_timer; + int pending_connect_cid; + struct list_head pending_wmi_ev; + /* + * protect pending_wmi_ev + * - fill in IRQ from wil6210_irq_misc, + * - consumed in thread by wmi_event_worker + */ + spinlock_t wmi_ev_lock; + /* DMA related */ + struct vring vring_rx; + struct vring vring_tx[WIL6210_MAX_TX_RINGS]; + u8 dst_addr[WIL6210_MAX_TX_RINGS][ETH_ALEN]; + /* scan */ + struct cfg80211_scan_request *scan_request; + + struct mutex mutex; /* for wil6210_priv access in wil_{up|down} */ + /* statistics */ + struct wil6210_stats stats; + /* debugfs */ + struct dentry *debug; + struct debugfs_blob_wrapper fw_code_blob; + struct debugfs_blob_wrapper fw_data_blob; + struct debugfs_blob_wrapper fw_peri_blob; + struct debugfs_blob_wrapper uc_code_blob; + struct debugfs_blob_wrapper uc_data_blob; + struct debugfs_blob_wrapper rgf_blob; +}; + +#define wil_to_wiphy(i) (i->wdev->wiphy) +#define wil_to_dev(i) (wiphy_dev(wil_to_wiphy(i))) +#define wiphy_to_wil(w) (struct wil6210_priv *)(wiphy_priv(w)) +#define wil_to_wdev(i) (i->wdev) +#define wdev_to_wil(w) (struct wil6210_priv *)(wdev_priv(w)) +#define wil_to_ndev(i) (wil_to_wdev(i)->netdev) +#define ndev_to_wil(n) (wdev_to_wil(n->ieee80211_ptr)) + +#define wil_dbg(wil, fmt, arg...) netdev_dbg(wil_to_ndev(wil), fmt, ##arg) +#define wil_info(wil, fmt, arg...) netdev_info(wil_to_ndev(wil), fmt, ##arg) +#define wil_err(wil, fmt, arg...) netdev_err(wil_to_ndev(wil), fmt, ##arg) + +#define wil_dbg_IRQ(wil, fmt, arg...) wil_dbg(wil, "DBG[ IRQ]" fmt, ##arg) +#define wil_dbg_TXRX(wil, fmt, arg...) wil_dbg(wil, "DBG[TXRX]" fmt, ##arg) +#define wil_dbg_WMI(wil, fmt, arg...) wil_dbg(wil, "DBG[ WMI]" fmt, ##arg) + +#define wil_hex_dump_TXRX(prefix_str, prefix_type, rowsize, \ + groupsize, buf, len, ascii) \ + wil_print_hex_dump_debug("DBG[TXRX]" prefix_str,\ + prefix_type, rowsize, \ + groupsize, buf, len, ascii) + +#define wil_hex_dump_WMI(prefix_str, prefix_type, rowsize, \ + groupsize, buf, len, ascii) \ + wil_print_hex_dump_debug("DBG[ WMI]" prefix_str,\ + prefix_type, rowsize, \ + groupsize, buf, len, ascii) + +void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src, + size_t count); +void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src, + size_t count); + +void *wil_if_alloc(struct device *dev, void __iomem *csr); +void wil_if_free(struct wil6210_priv *wil); +int wil_if_add(struct wil6210_priv *wil); +void wil_if_remove(struct wil6210_priv *wil); +int wil_priv_init(struct wil6210_priv *wil); +void wil_priv_deinit(struct wil6210_priv *wil); +int wil_reset(struct wil6210_priv *wil); +void wil_link_on(struct wil6210_priv *wil); +void wil_link_off(struct wil6210_priv *wil); +int wil_up(struct wil6210_priv *wil); +int wil_down(struct wil6210_priv *wil); +void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r); + +void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr); +void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr); +int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr, + struct wil6210_mbox_hdr *hdr); +int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len); +void wmi_recv_cmd(struct wil6210_priv *wil); +int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, + u16 reply_id, void *reply, u8 reply_size, int to_msec); +void wmi_connect_worker(struct work_struct *work); +void wmi_event_worker(struct work_struct *work); +void wmi_event_flush(struct wil6210_priv *wil); +int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid); +int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid); +int wmi_set_channel(struct wil6210_priv *wil, int channel); +int wmi_get_channel(struct wil6210_priv *wil, int *channel); +int wmi_tx_eapol(struct wil6210_priv *wil, struct sk_buff *skb); +int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, + const void *mac_addr); +int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, + const void *mac_addr, int key_len, const void *key); +int wmi_echo(struct wil6210_priv *wil); +int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie); + +int wil6210_init_irq(struct wil6210_priv *wil, int irq); +void wil6210_fini_irq(struct wil6210_priv *wil, int irq); +void wil6210_disable_irq(struct wil6210_priv *wil); +void wil6210_enable_irq(struct wil6210_priv *wil); + +int wil6210_debugfs_init(struct wil6210_priv *wil); +void wil6210_debugfs_remove(struct wil6210_priv *wil); + +struct wireless_dev *wil_cfg80211_init(struct device *dev); +void wil_wdev_free(struct wil6210_priv *wil); + +int wmi_set_mac_address(struct wil6210_priv *wil, void *addr); +int wmi_set_bcon(struct wil6210_priv *wil, int bi, u8 wmi_nettype); +void wil6210_disconnect(struct wil6210_priv *wil, void *bssid); + +int wil_rx_init(struct wil6210_priv *wil); +void wil_rx_fini(struct wil6210_priv *wil); + +/* TX API */ +int wil_vring_init_tx(struct wil6210_priv *wil, int id, int size, + int cid, int tid); +void wil_vring_fini_tx(struct wil6210_priv *wil, int id); + +netdev_tx_t wil_start_xmit(struct sk_buff *skb, struct net_device *ndev); +void wil_tx_complete(struct wil6210_priv *wil, int ringid); + +/* RX API */ +void wil_rx_handle(struct wil6210_priv *wil); + +int wil_iftype_nl2wmi(enum nl80211_iftype type); + +#endif /* __WIL6210_H__ */ diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c new file mode 100644 index 0000000..12915f6 --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/wmi.c @@ -0,0 +1,975 @@ +/* + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include +#include + +#include "wil6210.h" +#include "wmi.h" + +/** + * WMI event receiving - theory of operations + * + * When firmware about to report WMI event, it fills memory area + * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for + * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler. + * + * @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the + * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up + * and handles events within the @wmi_event_worker. Every event get detached + * from list, processed and deleted. + * + * Purpose for this mechanism is to release IRQ thread; otherwise, + * if WMI event handling involves another WMI command flow, this 2-nd flow + * won't be completed because of blocked IRQ thread. + */ + +/** + * Addressing - theory of operations + * + * There are several buses present on the WIL6210 card. + * Same memory areas are visible at different address on + * the different busses. There are 3 main bus masters: + * - MAC CPU (ucode) + * - User CPU (firmware) + * - AHB (host) + * + * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing + * AHB addresses starting from 0x880000 + * + * Internally, firmware uses addresses that allows faster access but + * are invisible from the host. To read from these addresses, alternative + * AHB address must be used. + * + * Memory mapping + * Linker address PCI/Host address + * 0x880000 .. 0xa80000 2Mb BAR0 + * 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM + * 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH + */ + +/** + * @fw_mapping provides memory remapping table + */ +static const struct { + u32 from; /* linker address - from, inclusive */ + u32 to; /* linker address - to, exclusive */ + u32 host; /* PCI/Host address - BAR0 + 0x880000 */ +} fw_mapping[] = { + {0x000000, 0x040000, 0x8c0000}, /* FW code RAM 256k */ + {0x800000, 0x808000, 0x900000}, /* FW data RAM 32k */ + {0x840000, 0x860000, 0x908000}, /* peripheral data RAM 128k/96k used */ + {0x880000, 0x88a000, 0x880000}, /* various RGF */ + {0x8c0000, 0x932000, 0x8c0000}, /* trivial mapping for upper area */ + /* + * 920000..930000 ucode code RAM + * 930000..932000 ucode data RAM + */ +}; + +/** + * return AHB address for given firmware/ucode internal (linker) address + * @x - internal address + * If address have no valid AHB mapping, return 0 + */ +static u32 wmi_addr_remap(u32 x) +{ + uint i; + + for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { + if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to)) + return x + fw_mapping[i].host - fw_mapping[i].from; + } + + return 0; +} + +/** + * Check address validity for WMI buffer; remap if needed + * @ptr - internal (linker) fw/ucode address + * + * Valid buffer should be DWORD aligned + * + * return address for accessing buffer from the host; + * if buffer is not valid, return NULL. + */ +void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_) +{ + u32 off; + u32 ptr = le32_to_cpu(ptr_); + + if (ptr % 4) + return NULL; + + ptr = wmi_addr_remap(ptr); + if (ptr < WIL6210_FW_HOST_OFF) + return NULL; + + off = HOSTADDR(ptr); + if (off > WIL6210_MEM_SIZE - 4) + return NULL; + + return wil->csr + off; +} + +/** + * Check address validity + */ +void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr) +{ + u32 off; + + if (ptr % 4) + return NULL; + + if (ptr < WIL6210_FW_HOST_OFF) + return NULL; + + off = HOSTADDR(ptr); + if (off > WIL6210_MEM_SIZE - 4) + return NULL; + + return wil->csr + off; +} + +int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr, + struct wil6210_mbox_hdr *hdr) +{ + void __iomem *src = wmi_buffer(wil, ptr); + if (!src) + return -EINVAL; + + wil_memcpy_fromio_32(hdr, src, sizeof(*hdr)); + + return 0; +} + +static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) +{ + struct { + struct wil6210_mbox_hdr hdr; + struct wil6210_mbox_hdr_wmi wmi; + } __packed cmd = { + .hdr = { + .type = WIL_MBOX_HDR_TYPE_WMI, + .flags = 0, + .len = cpu_to_le16(sizeof(cmd.wmi) + len), + }, + .wmi = { + .id = cpu_to_le16(cmdid), + .info1 = 0, + }, + }; + struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx; + struct wil6210_mbox_ring_desc d_head; + u32 next_head; + void __iomem *dst; + void __iomem *head = wmi_addr(wil, r->head); + uint retry; + + if (sizeof(cmd) + len > r->entry_size) { + wil_err(wil, "WMI size too large: %d bytes, max is %d\n", + (int)(sizeof(cmd) + len), r->entry_size); + return -ERANGE; + + } + + might_sleep(); + + if (!test_bit(wil_status_fwready, &wil->status)) { + wil_err(wil, "FW not ready\n"); + return -EAGAIN; + } + + if (!head) { + wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head); + return -EINVAL; + } + /* read Tx head till it is not busy */ + for (retry = 5; retry > 0; retry--) { + wil_memcpy_fromio_32(&d_head, head, sizeof(d_head)); + if (d_head.sync == 0) + break; + msleep(20); + } + if (d_head.sync != 0) { + wil_err(wil, "WMI head busy\n"); + return -EBUSY; + } + /* next head */ + next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size); + wil_dbg_WMI(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head); + /* wait till FW finish with previous command */ + for (retry = 5; retry > 0; retry--) { + r->tail = ioread32(wil->csr + HOST_MBOX + + offsetof(struct wil6210_mbox_ctl, tx.tail)); + if (next_head != r->tail) + break; + msleep(20); + } + if (next_head == r->tail) { + wil_err(wil, "WMI ring full\n"); + return -EBUSY; + } + dst = wmi_buffer(wil, d_head.addr); + if (!dst) { + wil_err(wil, "invalid WMI buffer: 0x%08x\n", + le32_to_cpu(d_head.addr)); + return -EINVAL; + } + cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq); + /* set command */ + wil_dbg_WMI(wil, "WMI command 0x%04x [%d]\n", cmdid, len); + wil_hex_dump_WMI("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd, + sizeof(cmd), true); + wil_hex_dump_WMI("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf, + len, true); + wil_memcpy_toio_32(dst, &cmd, sizeof(cmd)); + wil_memcpy_toio_32(dst + sizeof(cmd), buf, len); + /* mark entry as full */ + iowrite32(1, wil->csr + HOSTADDR(r->head) + + offsetof(struct wil6210_mbox_ring_desc, sync)); + /* advance next ptr */ + iowrite32(r->head = next_head, wil->csr + HOST_MBOX + + offsetof(struct wil6210_mbox_ctl, tx.head)); + + /* interrupt to FW */ + iowrite32(SW_INT_MBOX, wil->csr + HOST_SW_INT); + + return 0; +} + +int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len) +{ + int rc; + + mutex_lock(&wil->wmi_mutex); + rc = __wmi_send(wil, cmdid, buf, len); + mutex_unlock(&wil->wmi_mutex); + + return rc; +} + +/*=== Event handlers ===*/ +static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len) +{ + struct net_device *ndev = wil_to_ndev(wil); + struct wireless_dev *wdev = wil->wdev; + struct wmi_ready_event *evt = d; + u32 ver = le32_to_cpu(evt->sw_version); + + wil_dbg_WMI(wil, "FW ver. %d; MAC %pM\n", ver, evt->mac); + + if (!is_valid_ether_addr(ndev->dev_addr)) { + memcpy(ndev->dev_addr, evt->mac, ETH_ALEN); + memcpy(ndev->perm_addr, evt->mac, ETH_ALEN); + } + snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version), + "%d", ver); +} + +static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d, + int len) +{ + wil_dbg_WMI(wil, "WMI: FW ready\n"); + + set_bit(wil_status_fwready, &wil->status); + /* reuse wmi_ready for the firmware ready indication */ + complete(&wil->wmi_ready); +} + +static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len) +{ + struct wmi_rx_mgmt_packet_event *data = d; + struct wiphy *wiphy = wil_to_wiphy(wil); + struct ieee80211_mgmt *rx_mgmt_frame = + (struct ieee80211_mgmt *)data->payload; + int ch_no = data->info.channel+1; + u32 freq = ieee80211_channel_to_frequency(ch_no, + IEEE80211_BAND_60GHZ); + struct ieee80211_channel *channel = ieee80211_get_channel(wiphy, freq); + /* TODO convert LE to CPU */ + s32 signal = 0; /* TODO */ + __le16 fc = rx_mgmt_frame->frame_control; + u32 d_len = le32_to_cpu(data->info.len); + u16 d_status = le16_to_cpu(data->info.status); + + wil_dbg_WMI(wil, "MGMT: channel %d MCS %d SNR %d\n", + data->info.channel, data->info.mcs, data->info.snr); + wil_dbg_WMI(wil, "status 0x%04x len %d stype %04x\n", d_status, d_len, + le16_to_cpu(data->info.stype)); + wil_dbg_WMI(wil, "qid %d mid %d cid %d\n", + data->info.qid, data->info.mid, data->info.cid); + + if (!channel) { + wil_err(wil, "Frame on unsupported channel\n"); + return; + } + + if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) { + struct cfg80211_bss *bss; + u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp); + u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info); + u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int); + const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable; + size_t ie_len = d_len - offsetof(struct ieee80211_mgmt, + u.beacon.variable); + wil_dbg_WMI(wil, "Capability info : 0x%04x\n", cap); + + bss = cfg80211_inform_bss(wiphy, channel, rx_mgmt_frame->bssid, + tsf, cap, bi, ie_buf, ie_len, + signal, GFP_KERNEL); + if (bss) { + wil_dbg_WMI(wil, "Added BSS %pM\n", + rx_mgmt_frame->bssid); + cfg80211_put_bss(bss); + } else { + wil_err(wil, "cfg80211_inform_bss() failed\n"); + } + } +} + +static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id, + void *d, int len) +{ + if (wil->scan_request) { + struct wmi_scan_complete_event *data = d; + bool aborted = (data->status != 0); + + wil_dbg_WMI(wil, "SCAN_COMPLETE(0x%08x)\n", data->status); + cfg80211_scan_done(wil->scan_request, aborted); + wil->scan_request = NULL; + } else { + wil_err(wil, "SCAN_COMPLETE while not scanning\n"); + } +} + +static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len) +{ + struct net_device *ndev = wil_to_ndev(wil); + struct wireless_dev *wdev = wil->wdev; + struct wmi_connect_event *evt = d; + int ch; /* channel number */ + struct station_info sinfo; + u8 *assoc_req_ie, *assoc_resp_ie; + size_t assoc_req_ielen, assoc_resp_ielen; + /* capinfo(u16) + listen_interval(u16) + IEs */ + const size_t assoc_req_ie_offset = sizeof(u16) * 2; + /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */ + const size_t assoc_resp_ie_offset = sizeof(u16) * 3; + + if (len < sizeof(*evt)) { + wil_err(wil, "Connect event too short : %d bytes\n", len); + return; + } + if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len + + evt->assoc_resp_len) { + wil_err(wil, + "Connect event corrupted : %d != %d + %d + %d + %d\n", + len, (int)sizeof(*evt), evt->beacon_ie_len, + evt->assoc_req_len, evt->assoc_resp_len); + return; + } + ch = evt->channel + 1; + wil_dbg_WMI(wil, "Connect %pM channel [%d] cid %d\n", + evt->bssid, ch, evt->cid); + wil_hex_dump_WMI("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1, + evt->assoc_info, len - sizeof(*evt), true); + + /* figure out IE's */ + assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len + + assoc_req_ie_offset]; + assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset; + if (evt->assoc_req_len <= assoc_req_ie_offset) { + assoc_req_ie = NULL; + assoc_req_ielen = 0; + } + + assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len + + evt->assoc_req_len + + assoc_resp_ie_offset]; + assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset; + if (evt->assoc_resp_len <= assoc_resp_ie_offset) { + assoc_resp_ie = NULL; + assoc_resp_ielen = 0; + } + + if ((wdev->iftype == NL80211_IFTYPE_STATION) || + (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) { + if (wdev->sme_state != CFG80211_SME_CONNECTING) { + wil_err(wil, "Not in connecting state\n"); + return; + } + del_timer_sync(&wil->connect_timer); + cfg80211_connect_result(ndev, evt->bssid, + assoc_req_ie, assoc_req_ielen, + assoc_resp_ie, assoc_resp_ielen, + WLAN_STATUS_SUCCESS, GFP_KERNEL); + + } else if ((wdev->iftype == NL80211_IFTYPE_AP) || + (wdev->iftype == NL80211_IFTYPE_P2P_GO)) { + memset(&sinfo, 0, sizeof(sinfo)); + + sinfo.generation = wil->sinfo_gen++; + + if (assoc_req_ie) { + sinfo.assoc_req_ies = assoc_req_ie; + sinfo.assoc_req_ies_len = assoc_req_ielen; + sinfo.filled |= STATION_INFO_ASSOC_REQ_IES; + } + + cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL); + } + set_bit(wil_status_fwconnected, &wil->status); + + /* FIXME FW can transmit only ucast frames to peer */ + /* FIXME real ring_id instead of hard coded 0 */ + memcpy(wil->dst_addr[0], evt->bssid, ETH_ALEN); + + wil->pending_connect_cid = evt->cid; + queue_work(wil->wmi_wq_conn, &wil->wmi_connect_worker); +} + +static void wmi_evt_disconnect(struct wil6210_priv *wil, int id, + void *d, int len) +{ + struct wmi_disconnect_event *evt = d; + + wil_dbg_WMI(wil, "Disconnect %pM reason %d proto %d wmi\n", + evt->bssid, + evt->protocol_reason_status, evt->disconnect_reason); + + wil->sinfo_gen++; + + wil6210_disconnect(wil, evt->bssid); + clear_bit(wil_status_dontscan, &wil->status); +} + +static void wmi_evt_notify(struct wil6210_priv *wil, int id, void *d, int len) +{ + struct wmi_notify_req_done_event *evt = d; + + if (len < sizeof(*evt)) { + wil_err(wil, "Short NOTIFY event\n"); + return; + } + + wil->stats.tsf = le64_to_cpu(evt->tsf); + wil->stats.snr = le32_to_cpu(evt->snr_val); + wil->stats.bf_mcs = le16_to_cpu(evt->bf_mcs); + wil->stats.my_rx_sector = le16_to_cpu(evt->my_rx_sector); + wil->stats.my_tx_sector = le16_to_cpu(evt->my_tx_sector); + wil->stats.peer_rx_sector = le16_to_cpu(evt->other_rx_sector); + wil->stats.peer_tx_sector = le16_to_cpu(evt->other_tx_sector); + wil_dbg_WMI(wil, "Link status, MCS %d TSF 0x%016llx\n" + "BF status 0x%08x SNR 0x%08x\n" + "Tx Tpt %d goodput %d Rx goodput %d\n" + "Sectors(rx:tx) my %d:%d peer %d:%d\n", + wil->stats.bf_mcs, wil->stats.tsf, evt->status, + wil->stats.snr, le32_to_cpu(evt->tx_tpt), + le32_to_cpu(evt->tx_goodput), le32_to_cpu(evt->rx_goodput), + wil->stats.my_rx_sector, wil->stats.my_tx_sector, + wil->stats.peer_rx_sector, wil->stats.peer_tx_sector); +} + +/* + * Firmware reports EAPOL frame using WME event. + * Reconstruct Ethernet frame and deliver it via normal Rx + */ +static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id, + void *d, int len) +{ + struct net_device *ndev = wil_to_ndev(wil); + struct wmi_eapol_rx_event *evt = d; + u16 eapol_len = le16_to_cpu(evt->eapol_len); + int sz = eapol_len + ETH_HLEN; + struct sk_buff *skb; + struct ethhdr *eth; + + wil_dbg_WMI(wil, "EAPOL len %d from %pM\n", eapol_len, + evt->src_mac); + + if (eapol_len > 196) { /* TODO: revisit size limit */ + wil_err(wil, "EAPOL too large\n"); + return; + } + + skb = alloc_skb(sz, GFP_KERNEL); + if (!skb) { + wil_err(wil, "Failed to allocate skb\n"); + return; + } + eth = (struct ethhdr *)skb_put(skb, ETH_HLEN); + memcpy(eth->h_dest, ndev->dev_addr, ETH_ALEN); + memcpy(eth->h_source, evt->src_mac, ETH_ALEN); + eth->h_proto = cpu_to_be16(ETH_P_PAE); + memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len); + skb->protocol = eth_type_trans(skb, ndev); + if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) { + ndev->stats.rx_packets++; + ndev->stats.rx_bytes += skb->len; + } else { + ndev->stats.rx_dropped++; + } +} + +static const struct { + int eventid; + void (*handler)(struct wil6210_priv *wil, int eventid, + void *data, int data_len); +} wmi_evt_handlers[] = { + {WMI_READY_EVENTID, wmi_evt_ready}, + {WMI_FW_READY_EVENTID, wmi_evt_fw_ready}, + {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt}, + {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete}, + {WMI_CONNECT_EVENTID, wmi_evt_connect}, + {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect}, + {WMI_NOTIFY_REQ_DONE_EVENTID, wmi_evt_notify}, + {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx}, +}; + +/* + * Run in IRQ context + * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev + * that will be eventually handled by the @wmi_event_worker in the thread + * context of thread "wil6210_wmi" + */ +void wmi_recv_cmd(struct wil6210_priv *wil) +{ + struct wil6210_mbox_ring_desc d_tail; + struct wil6210_mbox_hdr hdr; + struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx; + struct pending_wmi_event *evt; + u8 *cmd; + void __iomem *src; + ulong flags; + + for (;;) { + u16 len; + + r->head = ioread32(wil->csr + HOST_MBOX + + offsetof(struct wil6210_mbox_ctl, rx.head)); + if (r->tail == r->head) + return; + + /* read cmd from tail */ + wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail), + sizeof(struct wil6210_mbox_ring_desc)); + if (d_tail.sync == 0) { + wil_err(wil, "Mbox evt not owned by FW?\n"); + return; + } + + if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) { + wil_err(wil, "Mbox evt at 0x%08x?\n", + le32_to_cpu(d_tail.addr)); + return; + } + + len = le16_to_cpu(hdr.len); + src = wmi_buffer(wil, d_tail.addr) + + sizeof(struct wil6210_mbox_hdr); + evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event, + event.wmi) + len, 4), + GFP_KERNEL); + if (!evt) { + wil_err(wil, "kmalloc for WMI event (%d) failed\n", + len); + return; + } + evt->event.hdr = hdr; + cmd = (void *)&evt->event.wmi; + wil_memcpy_fromio_32(cmd, src, len); + /* mark entry as empty */ + iowrite32(0, wil->csr + HOSTADDR(r->tail) + + offsetof(struct wil6210_mbox_ring_desc, sync)); + /* indicate */ + wil_dbg_WMI(wil, "Mbox evt %04x %04x %04x %02x\n", + le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type), + hdr.flags); + if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) && + (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { + wil_dbg_WMI(wil, "WMI event 0x%04x\n", + evt->event.wmi.id); + } + wil_hex_dump_WMI("evt ", DUMP_PREFIX_OFFSET, 16, 1, + &evt->event.hdr, sizeof(hdr) + len, true); + + /* advance tail */ + r->tail = r->base + ((r->tail - r->base + + sizeof(struct wil6210_mbox_ring_desc)) % r->size); + iowrite32(r->tail, wil->csr + HOST_MBOX + + offsetof(struct wil6210_mbox_ctl, rx.tail)); + + /* add to the pending list */ + spin_lock_irqsave(&wil->wmi_ev_lock, flags); + list_add_tail(&evt->list, &wil->pending_wmi_ev); + spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); + { + int q = queue_work(wil->wmi_wq, + &wil->wmi_event_worker); + wil_dbg_WMI(wil, "queue_work -> %d\n", q); + } + } +} + +int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len, + u16 reply_id, void *reply, u8 reply_size, int to_msec) +{ + int rc; + int remain; + + mutex_lock(&wil->wmi_mutex); + + rc = __wmi_send(wil, cmdid, buf, len); + if (rc) + goto out; + + wil->reply_id = reply_id; + wil->reply_buf = reply; + wil->reply_size = reply_size; + remain = wait_for_completion_timeout(&wil->wmi_ready, + msecs_to_jiffies(to_msec)); + if (0 == remain) { + wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n", + cmdid, reply_id, to_msec); + rc = -ETIME; + } else { + wil_dbg_WMI(wil, + "wmi_call(0x%04x->0x%04x) completed in %d msec\n", + cmdid, reply_id, + to_msec - jiffies_to_msecs(remain)); + } + wil->reply_id = 0; + wil->reply_buf = NULL; + wil->reply_size = 0; + out: + mutex_unlock(&wil->wmi_mutex); + + return rc; +} + +int wmi_echo(struct wil6210_priv *wil) +{ + struct wmi_echo_cmd cmd = { + .value = cpu_to_le32(0x12345678), + }; + + return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd), + WMI_ECHO_RSP_EVENTID, NULL, 0, 20); +} + +int wmi_set_mac_address(struct wil6210_priv *wil, void *addr) +{ + struct wmi_set_mac_address_cmd cmd; + + memcpy(cmd.mac, addr, ETH_ALEN); + + wil_dbg_WMI(wil, "Set MAC %pM\n", addr); + + return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd)); +} + +int wmi_set_bcon(struct wil6210_priv *wil, int bi, u8 wmi_nettype) +{ + struct wmi_bcon_ctrl_cmd cmd = { + .bcon_interval = cpu_to_le16(bi), + .network_type = wmi_nettype, + .disable_sec_offload = 1, + }; + + if (!wil->secure_pcp) + cmd.disable_sec = 1; + + return wmi_send(wil, WMI_BCON_CTRL_CMDID, &cmd, sizeof(cmd)); +} + +int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid) +{ + struct wmi_set_ssid_cmd cmd = { + .ssid_len = cpu_to_le32(ssid_len), + }; + + if (ssid_len > sizeof(cmd.ssid)) + return -EINVAL; + + memcpy(cmd.ssid, ssid, ssid_len); + + return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd)); +} + +int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid) +{ + int rc; + struct { + struct wil6210_mbox_hdr_wmi wmi; + struct wmi_set_ssid_cmd cmd; + } __packed reply; + int len; /* reply.cmd.ssid_len in CPU order */ + + rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID, + &reply, sizeof(reply), 20); + if (rc) + return rc; + + len = le32_to_cpu(reply.cmd.ssid_len); + if (len > sizeof(reply.cmd.ssid)) + return -EINVAL; + + *ssid_len = len; + memcpy(ssid, reply.cmd.ssid, len); + + return 0; +} + +int wmi_set_channel(struct wil6210_priv *wil, int channel) +{ + struct wmi_set_pcp_channel_cmd cmd = { + .channel = channel - 1, + }; + + return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd)); +} + +int wmi_get_channel(struct wil6210_priv *wil, int *channel) +{ + int rc; + struct { + struct wil6210_mbox_hdr_wmi wmi; + struct wmi_set_pcp_channel_cmd cmd; + } __packed reply; + + rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0, + WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20); + if (rc) + return rc; + + if (reply.cmd.channel > 3) + return -EINVAL; + + *channel = reply.cmd.channel + 1; + + return 0; +} + +int wmi_tx_eapol(struct wil6210_priv *wil, struct sk_buff *skb) +{ + struct wmi_eapol_tx_cmd *cmd; + struct ethhdr *eth; + u16 eapol_len = skb->len - ETH_HLEN; + void *eapol = skb->data + ETH_HLEN; + uint i; + int rc; + + skb_set_mac_header(skb, 0); + eth = eth_hdr(skb); + wil_dbg_WMI(wil, "EAPOL %d bytes to %pM\n", eapol_len, eth->h_dest); + for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { + if (memcmp(wil->dst_addr[i], eth->h_dest, ETH_ALEN) == 0) + goto found_dest; + } + + return -EINVAL; + + found_dest: + /* find out eapol data & len */ + cmd = kzalloc(sizeof(*cmd) + eapol_len, GFP_KERNEL); + if (!cmd) + return -EINVAL; + + memcpy(cmd->dst_mac, eth->h_dest, ETH_ALEN); + cmd->eapol_len = cpu_to_le16(eapol_len); + memcpy(cmd->eapol, eapol, eapol_len); + rc = wmi_send(wil, WMI_EAPOL_TX_CMDID, cmd, sizeof(*cmd) + eapol_len); + kfree(cmd); + + return rc; +} + +int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index, + const void *mac_addr) +{ + struct wmi_delete_cipher_key_cmd cmd = { + .key_index = key_index, + }; + + if (mac_addr) + memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); + + return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); +} + +int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index, + const void *mac_addr, int key_len, const void *key) +{ + struct wmi_add_cipher_key_cmd cmd = { + .key_index = key_index, + .key_usage = WMI_KEY_USE_PAIRWISE, + .key_len = key_len, + }; + + if (!key || (key_len > sizeof(cmd.key))) + return -EINVAL; + + memcpy(cmd.key, key, key_len); + if (mac_addr) + memcpy(cmd.mac, mac_addr, WMI_MAC_LEN); + + return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd)); +} + +int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie) +{ + int rc; + u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len; + struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL); + if (!cmd) { + wil_err(wil, "kmalloc(%d) failed\n", len); + return -ENOMEM; + } + + cmd->mgmt_frm_type = type; + /* BUG: FW API define ieLen as u8. Will fix FW */ + cmd->ie_len = cpu_to_le16(ie_len); + memcpy(cmd->ie_info, ie, ie_len); + rc = wmi_send(wil, WMI_SET_APPIE_CMDID, &cmd, len); + kfree(cmd); + + return rc; +} + +void wmi_event_flush(struct wil6210_priv *wil) +{ + struct pending_wmi_event *evt, *t; + + wil_dbg_WMI(wil, "%s()\n", __func__); + + list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) { + list_del(&evt->list); + kfree(evt); + } +} + +static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id, + void *d, int len) +{ + uint i; + + for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) { + if (wmi_evt_handlers[i].eventid == id) { + wmi_evt_handlers[i].handler(wil, id, d, len); + return true; + } + } + + return false; +} + +static void wmi_event_handle(struct wil6210_priv *wil, + struct wil6210_mbox_hdr *hdr) +{ + u16 len = le16_to_cpu(hdr->len); + + if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) && + (len >= sizeof(struct wil6210_mbox_hdr_wmi))) { + struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]); + void *evt_data = (void *)(&wmi[1]); + u16 id = le16_to_cpu(wmi->id); + /* check if someone waits for this event */ + if (wil->reply_id && wil->reply_id == id) { + if (wil->reply_buf) { + memcpy(wil->reply_buf, wmi, + min(len, wil->reply_size)); + } else { + wmi_evt_call_handler(wil, id, evt_data, + len - sizeof(*wmi)); + } + wil_dbg_WMI(wil, "Complete WMI 0x%04x\n", id); + complete(&wil->wmi_ready); + return; + } + /* unsolicited event */ + /* search for handler */ + if (!wmi_evt_call_handler(wil, id, evt_data, + len - sizeof(*wmi))) { + wil_err(wil, "Unhandled event 0x%04x\n", id); + } + } else { + wil_err(wil, "Unknown event type\n"); + print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1, + hdr, sizeof(*hdr) + len, true); + } +} + +/* + * Retrieve next WMI event from the pending list + */ +static struct list_head *next_wmi_ev(struct wil6210_priv *wil) +{ + ulong flags; + struct list_head *ret = NULL; + + spin_lock_irqsave(&wil->wmi_ev_lock, flags); + + if (!list_empty(&wil->pending_wmi_ev)) { + ret = wil->pending_wmi_ev.next; + list_del(ret); + } + + spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); + + return ret; +} + +/* + * Handler for the WMI events + */ +void wmi_event_worker(struct work_struct *work) +{ + struct wil6210_priv *wil = container_of(work, struct wil6210_priv, + wmi_event_worker); + struct pending_wmi_event *evt; + struct list_head *lh; + + while ((lh = next_wmi_ev(wil)) != NULL) { + evt = list_entry(lh, struct pending_wmi_event, list); + wmi_event_handle(wil, &evt->event.hdr); + kfree(evt); + } +} + +void wmi_connect_worker(struct work_struct *work) +{ + int rc; + struct wil6210_priv *wil = container_of(work, struct wil6210_priv, + wmi_connect_worker); + + if (wil->pending_connect_cid < 0) { + wil_err(wil, "No connection pending\n"); + return; + } + + wil_dbg_WMI(wil, "Configure for connection CID %d\n", + wil->pending_connect_cid); + + rc = wil_vring_init_tx(wil, 0, WIL6210_TX_RING_SIZE, + wil->pending_connect_cid, 0); + wil->pending_connect_cid = -1; + if (rc == 0) + wil_link_on(wil); +} diff --git a/drivers/net/wireless/ath/wil6210/wmi.h b/drivers/net/wireless/ath/wil6210/wmi.h new file mode 100644 index 0000000..3bbf875 --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/wmi.h @@ -0,0 +1,1116 @@ +/* + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * Copyright (c) 2006-2012 Wilocity . + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * This file contains the definitions of the WMI protocol specified in the + * Wireless Module Interface (WMI) for the Wilocity + * MARLON 60 Gigabit wireless solution. + * It includes definitions of all the commands and events. + * Commands are messages from the host to the WM. + * Events are messages from the WM to the host. + */ + +#ifndef __WILOCITY_WMI_H__ +#define __WILOCITY_WMI_H__ + +/* General */ + +#define WMI_MAC_LEN (6) +#define WMI_PROX_RANGE_NUM (3) + +/* List of Commands */ +enum wmi_command_id { + WMI_CONNECT_CMDID = 0x0001, + WMI_DISCONNECT_CMDID = 0x0003, + WMI_START_SCAN_CMDID = 0x0007, + WMI_SET_BSS_FILTER_CMDID = 0x0009, + WMI_SET_PROBED_SSID_CMDID = 0x000a, + WMI_SET_LISTEN_INT_CMDID = 0x000b, + WMI_BCON_CTRL_CMDID = 0x000f, + WMI_ADD_CIPHER_KEY_CMDID = 0x0016, + WMI_DELETE_CIPHER_KEY_CMDID = 0x0017, + WMI_SET_APPIE_CMDID = 0x003f, + WMI_GET_APPIE_CMDID = 0x0040, + WMI_SET_WSC_STATUS_CMDID = 0x0041, + WMI_PXMT_RANGE_CFG_CMDID = 0x0042, + WMI_PXMT_SNR2_RANGE_CFG_CMDID = 0x0043, + WMI_FAST_MEM_ACC_MODE_CMDID = 0x0300, + WMI_MEM_READ_CMDID = 0x0800, + WMI_MEM_WR_CMDID = 0x0801, + WMI_ECHO_CMDID = 0x0803, + WMI_DEEP_ECHO_CMDID = 0x0804, + WMI_CONFIG_MAC_CMDID = 0x0805, + WMI_CONFIG_PHY_DEBUG_CMDID = 0x0806, + WMI_ADD_STATION_CMDID = 0x0807, + WMI_ADD_DEBUG_TX_PCKT_CMDID = 0x0808, + WMI_PHY_GET_STATISTICS_CMDID = 0x0809, + WMI_FS_TUNE_CMDID = 0x080a, + WMI_CORR_MEASURE_CMDID = 0x080b, + WMI_TEMP_SENSE_CMDID = 0x080e, + WMI_DC_CALIB_CMDID = 0x080f, + WMI_SEND_TONE_CMDID = 0x0810, + WMI_IQ_TX_CALIB_CMDID = 0x0811, + WMI_IQ_RX_CALIB_CMDID = 0x0812, + WMI_SET_UCODE_IDLE_CMDID = 0x0813, + WMI_SET_WORK_MODE_CMDID = 0x0815, + WMI_LO_LEAKAGE_CALIB_CMDID = 0x0816, + WMI_MARLON_R_ACTIVATE_CMDID = 0x0817, + WMI_MARLON_R_READ_CMDID = 0x0818, + WMI_MARLON_R_WRITE_CMDID = 0x0819, + WMI_MARLON_R_TXRX_SEL_CMDID = 0x081a, + MAC_IO_STATIC_PARAMS_CMDID = 0x081b, + MAC_IO_DYNAMIC_PARAMS_CMDID = 0x081c, + WMI_SILENT_RSSI_CALIB_CMDID = 0x081d, + WMI_CFG_RX_CHAIN_CMDID = 0x0820, + WMI_VRING_CFG_CMDID = 0x0821, + WMI_RX_ON_CMDID = 0x0822, + WMI_VRING_BA_EN_CMDID = 0x0823, + WMI_VRING_BA_DIS_CMDID = 0x0824, + WMI_RCP_ADDBA_RESP_CMDID = 0x0825, + WMI_RCP_DELBA_CMDID = 0x0826, + WMI_SET_SSID_CMDID = 0x0827, + WMI_GET_SSID_CMDID = 0x0828, + WMI_SET_PCP_CHANNEL_CMDID = 0x0829, + WMI_GET_PCP_CHANNEL_CMDID = 0x082a, + WMI_SW_TX_REQ_CMDID = 0x082b, + WMI_RX_OFF_CMDID = 0x082c, + WMI_READ_MAC_RXQ_CMDID = 0x0830, + WMI_READ_MAC_TXQ_CMDID = 0x0831, + WMI_WRITE_MAC_RXQ_CMDID = 0x0832, + WMI_WRITE_MAC_TXQ_CMDID = 0x0833, + WMI_WRITE_MAC_XQ_FIELD_CMDID = 0x0834, + WMI_MLME_PUSH_CMDID = 0x0835, + WMI_BEAMFORMING_MGMT_CMDID = 0x0836, + WMI_BF_TXSS_MGMT_CMDID = 0x0837, + WMI_BF_SM_MGMT_CMDID = 0x0838, + WMI_BF_RXSS_MGMT_CMDID = 0x0839, + WMI_SET_SECTORS_CMDID = 0x0849, + WMI_MAINTAIN_PAUSE_CMDID = 0x0850, + WMI_MAINTAIN_RESUME_CMDID = 0x0851, + WMI_RS_MGMT_CMDID = 0x0852, + WMI_RF_MGMT_CMDID = 0x0853, + /* Performance monitoring commands */ + WMI_BF_CTRL_CMDID = 0x0862, + WMI_NOTIFY_REQ_CMDID = 0x0863, + WMI_GET_STATUS_CMDID = 0x0864, + WMI_UNIT_TEST_CMDID = 0x0900, + WMI_HICCUP_CMDID = 0x0901, + WMI_FLASH_READ_CMDID = 0x0902, + WMI_FLASH_WRITE_CMDID = 0x0903, + WMI_SECURITY_UNIT_TEST_CMDID = 0x0904, + + WMI_SET_MAC_ADDRESS_CMDID = 0xf003, + WMI_ABORT_SCAN_CMDID = 0xf007, + WMI_SET_PMK_CMDID = 0xf028, + + WMI_SET_PROMISCUOUS_MODE_CMDID = 0xf041, + WMI_GET_PMK_CMDID = 0xf048, + WMI_SET_PASSPHRASE_CMDID = 0xf049, + WMI_SEND_ASSOC_RES_CMDID = 0xf04a, + WMI_SET_ASSOC_REQ_RELAY_CMDID = 0xf04b, + WMI_EAPOL_TX_CMDID = 0xf04c, + WMI_MAC_ADDR_REQ_CMDID = 0xf04d, + WMI_FW_VER_CMDID = 0xf04e, +}; + +/* + * Commands data structures + */ + +/* + * Frame Types + */ +enum wmi_mgmt_frame_type { + WMI_FRAME_BEACON = 0, + WMI_FRAME_PROBE_REQ = 1, + WMI_FRAME_PROBE_RESP = 2, + WMI_FRAME_ASSOC_REQ = 3, + WMI_FRAME_ASSOC_RESP = 4, + WMI_NUM_MGMT_FRAME, +}; + +/* + * WMI_CONNECT_CMDID + */ +enum wmi_network_type { + WMI_NETTYPE_INFRA = 0x01, + WMI_NETTYPE_ADHOC = 0x02, + WMI_NETTYPE_ADHOC_CREATOR = 0x04, + WMI_NETTYPE_AP = 0x10, + WMI_NETTYPE_P2P = 0x20, + WMI_NETTYPE_WBE = 0x40, /* PCIE over 60g */ +}; + +enum wmi_dot11_auth_mode { + WMI_AUTH11_OPEN = 0x01, + WMI_AUTH11_SHARED = 0x02, + WMI_AUTH11_LEAP = 0x04, + WMI_AUTH11_WSC = 0x08, +}; + +enum wmi_auth_mode { + WMI_AUTH_NONE = 0x01, + WMI_AUTH_WPA = 0x02, + WMI_AUTH_WPA2 = 0x04, + WMI_AUTH_WPA_PSK = 0x08, + WMI_AUTH_WPA2_PSK = 0x10, + WMI_AUTH_WPA_CCKM = 0x20, + WMI_AUTH_WPA2_CCKM = 0x40, +}; + +enum wmi_crypto_type { + WMI_CRYPT_NONE = 0x01, + WMI_CRYPT_WEP = 0x02, + WMI_CRYPT_TKIP = 0x04, + WMI_CRYPT_AES = 0x08, + WMI_CRYPT_AES_GCMP = 0x20, +}; + + +enum wmi_connect_ctrl_flag_bits { + WMI_CONNECT_ASSOC_POLICY_USER = 0x0001, + WMI_CONNECT_SEND_REASSOC = 0x0002, + WMI_CONNECT_IGNORE_WPAx_GROUP_CIPHER = 0x0004, + WMI_CONNECT_PROFILE_MATCH_DONE = 0x0008, + WMI_CONNECT_IGNORE_AAC_BEACON = 0x0010, + WMI_CONNECT_CSA_FOLLOW_BSS = 0x0020, + WMI_CONNECT_DO_WPA_OFFLOAD = 0x0040, + WMI_CONNECT_DO_NOT_DEAUTH = 0x0080, +}; + +#define WMI_MAX_SSID_LEN (32) + +struct wmi_connect_cmd { + u8 network_type; + u8 dot11_auth_mode; + u8 auth_mode; + u8 pairwise_crypto_type; + u8 pairwise_crypto_len; + u8 group_crypto_type; + u8 group_crypto_len; + u8 ssid_len; + u8 ssid[WMI_MAX_SSID_LEN]; + u8 channel; + u8 reserved0; + u8 bssid[WMI_MAC_LEN]; + __le32 ctrl_flags; + u8 dst_mac[WMI_MAC_LEN]; + u8 reserved1[2]; +} __packed; + + +/* + * WMI_RECONNECT_CMDID + */ +struct wmi_reconnect_cmd { + u8 channel; /* hint */ + u8 reserved; + u8 bssid[WMI_MAC_LEN]; /* mandatory if set */ +} __packed; + + +/* + * WMI_SET_PMK_CMDID + */ + +#define WMI_MIN_KEY_INDEX (0) +#define WMI_MAX_KEY_INDEX (3) +#define WMI_MAX_KEY_LEN (32) +#define WMI_PASSPHRASE_LEN (64) +#define WMI_PMK_LEN (32) + +struct wmi_set_pmk_cmd { + u8 pmk[WMI_PMK_LEN]; +} __packed; + + +/* + * WMI_SET_PASSPHRASE_CMDID + */ +struct wmi_set_passphrase_cmd { + u8 ssid[WMI_MAX_SSID_LEN]; + u8 passphrase[WMI_PASSPHRASE_LEN]; + u8 ssid_len; + u8 passphrase_len; +} __packed; + +/* + * WMI_ADD_CIPHER_KEY_CMDID + */ +enum wmi_key_usage { + WMI_KEY_USE_PAIRWISE = 0, + WMI_KEY_USE_GROUP = 1, + WMI_KEY_USE_TX = 2, /* default Tx Key - Static WEP only */ +}; + +struct wmi_add_cipher_key_cmd { + u8 key_index; + u8 key_type; + u8 key_usage; /* enum wmi_key_usage */ + u8 key_len; + u8 key_rsc[8]; /* key replay sequence counter */ + u8 key[WMI_MAX_KEY_LEN]; + u8 key_op_ctrl; /* Additional Key Control information */ + u8 mac[WMI_MAC_LEN]; +} __packed; + +/* + * WMI_DELETE_CIPHER_KEY_CMDID + */ +struct wmi_delete_cipher_key_cmd { + u8 key_index; + u8 mac[WMI_MAC_LEN]; +} __packed; + + +/* + * WMI_START_SCAN_CMDID + * + * Start L1 scan operation + * + * Returned events: + * - WMI_RX_MGMT_PACKET_EVENTID - for every probe resp. + * - WMI_SCAN_COMPLETE_EVENTID + */ +enum wmi_scan_type { + WMI_LONG_SCAN = 0, + WMI_SHORT_SCAN = 1, +}; + +struct wmi_start_scan_cmd { + u8 reserved[8]; + __le32 home_dwell_time; /* Max duration in the home channel(ms) */ + __le32 force_scan_interval; /* Time interval between scans (ms)*/ + u8 scan_type; /* wmi_scan_type */ + u8 num_channels; /* how many channels follow */ + struct { + u8 channel; + u8 reserved; + } channel_list[0]; /* channels ID's */ + /* 0 - 58320 MHz */ + /* 1 - 60480 MHz */ + /* 2 - 62640 MHz */ +} __packed; + +/* + * WMI_SET_PROBED_SSID_CMDID + */ +#define MAX_PROBED_SSID_INDEX (15) + +enum wmi_ssid_flag { + WMI_SSID_FLAG_DISABLE = 0, /* disables entry */ + WMI_SSID_FLAG_SPECIFIC = 1, /* probes specified ssid */ + WMI_SSID_FLAG_ANY = 2, /* probes for any ssid */ +}; + +struct wmi_probed_ssid_cmd { + u8 entry_index; /* 0 to MAX_PROBED_SSID_INDEX */ + u8 flag; /* enum wmi_ssid_flag */ + u8 ssid_len; + u8 ssid[WMI_MAX_SSID_LEN]; +} __packed; + +/* + * WMI_SET_APPIE_CMDID + * Add Application specified IE to a management frame + */ +struct wmi_set_appie_cmd { + u8 mgmt_frm_type; /* enum wmi_mgmt_frame_type */ + u8 reserved; + __le16 ie_len; /* Length of the IE to be added to MGMT frame */ + u8 ie_info[0]; +} __packed; + +#define WMI_MAX_IE_LEN (1024) + +struct wmi_pxmt_range_cfg_cmd { + u8 dst_mac[WMI_MAC_LEN]; + __le16 range; +} __packed; + +struct wmi_pxmt_snr2_range_cfg_cmd { + s8 snr2range_arr[WMI_PROX_RANGE_NUM-1]; +} __packed; + +/* + * WMI_RF_MGMT_CMDID + */ +enum wmi_rf_mgmt_type { + WMI_RF_MGMT_W_DISABLE = 0, + WMI_RF_MGMT_W_ENABLE = 1, + WMI_RF_MGMT_GET_STATUS = 2, +}; + +struct wmi_rf_mgmt_cmd { + __le32 rf_mgmt_type; +} __packed; + +/* + * WMI_SET_SSID_CMDID + */ +struct wmi_set_ssid_cmd { + __le32 ssid_len; + u8 ssid[WMI_MAX_SSID_LEN]; +} __packed; + +/* + * WMI_SET_PCP_CHANNEL_CMDID + */ +struct wmi_set_pcp_channel_cmd { + u8 channel; + u8 reserved[3]; +} __packed; + +/* + * WMI_BCON_CTRL_CMDID + */ +struct wmi_bcon_ctrl_cmd { + __le16 bcon_interval; + __le16 frag_num; + __le64 ss_mask; + u8 network_type; + u8 reserved; + u8 disable_sec_offload; + u8 disable_sec; +} __packed; + +/* + * WMI_SW_TX_REQ_CMDID + */ +struct wmi_sw_tx_req_cmd { + u8 dst_mac[WMI_MAC_LEN]; + __le16 len; + u8 payload[0]; +} __packed; + +/* + * WMI_VRING_CFG_CMDID + */ + +struct wmi_sw_ring_cfg { + __le64 ring_mem_base; + __le16 ring_size; + __le16 max_mpdu_size; +} __packed; + +struct wmi_vring_cfg_schd { + __le16 priority; + __le16 timeslot_us; +} __packed; + +enum wmi_vring_cfg_encap_trans_type { + WMI_VRING_ENC_TYPE_802_3 = 0, + WMI_VRING_ENC_TYPE_NATIVE_WIFI = 1, +}; + +enum wmi_vring_cfg_ds_cfg { + WMI_VRING_DS_PBSS = 0, + WMI_VRING_DS_STATION = 1, + WMI_VRING_DS_AP = 2, + WMI_VRING_DS_ADDR4 = 3, +}; + +enum wmi_vring_cfg_nwifi_ds_trans_type { + WMI_NWIFI_TX_TRANS_MODE_NO = 0, + WMI_NWIFI_TX_TRANS_MODE_AP2PBSS = 1, + WMI_NWIFI_TX_TRANS_MODE_STA2PBSS = 2, +}; + +enum wmi_vring_cfg_schd_params_priority { + WMI_SCH_PRIO_REGULAR = 0, + WMI_SCH_PRIO_HIGH = 1, +}; + +struct wmi_vring_cfg { + struct wmi_sw_ring_cfg tx_sw_ring; + u8 ringid; /* 0-23 vrings */ + + #define CIDXTID_CID_POS (0) + #define CIDXTID_CID_LEN (4) + #define CIDXTID_CID_MSK (0xF) + #define CIDXTID_TID_POS (4) + #define CIDXTID_TID_LEN (4) + #define CIDXTID_TID_MSK (0xF0) + u8 cidxtid; + + u8 encap_trans_type; + u8 ds_cfg; /* 802.3 DS cfg */ + u8 nwifi_ds_trans_type; + + #define VRING_CFG_MAC_CTRL_LIFETIME_EN_POS (0) + #define VRING_CFG_MAC_CTRL_LIFETIME_EN_LEN (1) + #define VRING_CFG_MAC_CTRL_LIFETIME_EN_MSK (0x1) + #define VRING_CFG_MAC_CTRL_AGGR_EN_POS (1) + #define VRING_CFG_MAC_CTRL_AGGR_EN_LEN (1) + #define VRING_CFG_MAC_CTRL_AGGR_EN_MSK (0x2) + u8 mac_ctrl; + + #define VRING_CFG_TO_RESOLUTION_VALUE_POS (0) + #define VRING_CFG_TO_RESOLUTION_VALUE_LEN (6) + #define VRING_CFG_TO_RESOLUTION_VALUE_MSK (0x3F) + u8 to_resolution; + u8 agg_max_wsize; + struct wmi_vring_cfg_schd schd_params; +} __packed; + +enum wmi_vring_cfg_cmd_action { + WMI_VRING_CMD_ADD = 0, + WMI_VRING_CMD_MODIFY = 1, + WMI_VRING_CMD_DELETE = 2, +}; + +struct wmi_vring_cfg_cmd { + __le32 action; + struct wmi_vring_cfg vring_cfg; +} __packed; + +/* + * WMI_VRING_BA_EN_CMDID + */ +struct wmi_vring_ba_en_cmd { + u8 ringid; + u8 agg_max_wsize; + __le16 ba_timeout; +} __packed; + +/* + * WMI_VRING_BA_DIS_CMDID + */ +struct wmi_vring_ba_dis_cmd { + u8 ringid; + u8 reserved; + __le16 reason; +} __packed; + +/* + * WMI_NOTIFY_REQ_CMDID + */ +struct wmi_notify_req_cmd { + u8 cid; + u8 reserved[3]; + __le32 interval_usec; +} __packed; + +/* + * WMI_CFG_RX_CHAIN_CMDID + */ +enum wmi_sniffer_cfg_mode { + WMI_SNIFFER_OFF = 0, + WMI_SNIFFER_ON = 1, +}; + +enum wmi_sniffer_cfg_phy_info_mode { + WMI_SNIFFER_PHY_INFO_DISABLED = 0, + WMI_SNIFFER_PHY_INFO_ENABLED = 1, +}; + +enum wmi_sniffer_cfg_phy_support { + WMI_SNIFFER_CP = 0, + WMI_SNIFFER_DP = 1, + WMI_SNIFFER_BOTH_PHYS = 2, +}; + +struct wmi_sniffer_cfg { + __le32 mode; /* enum wmi_sniffer_cfg_mode */ + __le32 phy_info_mode; /* enum wmi_sniffer_cfg_phy_info_mode */ + __le32 phy_support; /* enum wmi_sniffer_cfg_phy_support */ + u8 channel; + u8 reserved[3]; +} __packed; + +enum wmi_cfg_rx_chain_cmd_action { + WMI_RX_CHAIN_ADD = 0, + WMI_RX_CHAIN_DEL = 1, +}; + +enum wmi_cfg_rx_chain_cmd_decap_trans_type { + WMI_DECAP_TYPE_802_3 = 0, + WMI_DECAP_TYPE_NATIVE_WIFI = 1, +}; + +enum wmi_cfg_rx_chain_cmd_nwifi_ds_trans_type { + WMI_NWIFI_RX_TRANS_MODE_NO = 0, + WMI_NWIFI_RX_TRANS_MODE_PBSS2AP = 1, + WMI_NWIFI_RX_TRANS_MODE_PBSS2STA = 2, +}; + +struct wmi_cfg_rx_chain_cmd { + __le32 action; + struct wmi_sw_ring_cfg rx_sw_ring; + u8 mid; + u8 decap_trans_type; + + #define L2_802_3_OFFLOAD_CTRL_VLAN_TAG_INSERTION_POS (0) + #define L2_802_3_OFFLOAD_CTRL_VLAN_TAG_INSERTION_LEN (1) + #define L2_802_3_OFFLOAD_CTRL_VLAN_TAG_INSERTION_MSK (0x1) + u8 l2_802_3_offload_ctrl; + + #define L2_NWIFI_OFFLOAD_CTRL_REMOVE_QOS_POS (0) + #define L2_NWIFI_OFFLOAD_CTRL_REMOVE_QOS_LEN (1) + #define L2_NWIFI_OFFLOAD_CTRL_REMOVE_QOS_MSK (0x1) + #define L2_NWIFI_OFFLOAD_CTRL_REMOVE_PN_POS (1) + #define L2_NWIFI_OFFLOAD_CTRL_REMOVE_PN_LEN (1) + #define L2_NWIFI_OFFLOAD_CTRL_REMOVE_PN_MSK (0x2) + u8 l2_nwifi_offload_ctrl; + + u8 vlan_id; + u8 nwifi_ds_trans_type; + + #define L3_L4_CTRL_IPV4_CHECKSUM_EN_POS (0) + #define L3_L4_CTRL_IPV4_CHECKSUM_EN_LEN (1) + #define L3_L4_CTRL_IPV4_CHECKSUM_EN_MSK (0x1) + #define L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS (1) + #define L3_L4_CTRL_TCPIP_CHECKSUM_EN_LEN (1) + #define L3_L4_CTRL_TCPIP_CHECKSUM_EN_MSK (0x2) + u8 l3_l4_ctrl; + + #define RING_CTRL_OVERRIDE_PREFETCH_THRSH_POS (0) + #define RING_CTRL_OVERRIDE_PREFETCH_THRSH_LEN (1) + #define RING_CTRL_OVERRIDE_PREFETCH_THRSH_MSK (0x1) + #define RING_CTRL_OVERRIDE_WB_THRSH_POS (1) + #define RING_CTRL_OVERRIDE_WB_THRSH_LEN (1) + #define RING_CTRL_OVERRIDE_WB_THRSH_MSK (0x2) + #define RING_CTRL_OVERRIDE_ITR_THRSH_POS (2) + #define RING_CTRL_OVERRIDE_ITR_THRSH_LEN (1) + #define RING_CTRL_OVERRIDE_ITR_THRSH_MSK (0x4) + #define RING_CTRL_OVERRIDE_HOST_THRSH_POS (3) + #define RING_CTRL_OVERRIDE_HOST_THRSH_LEN (1) + #define RING_CTRL_OVERRIDE_HOST_THRSH_MSK (0x8) + u8 ring_ctrl; + + __le16 prefetch_thrsh; + __le16 wb_thrsh; + __le32 itr_value; + __le16 host_thrsh; + u8 reserved[2]; + struct wmi_sniffer_cfg sniffer_cfg; +} __packed; + +/* + * WMI_RCP_ADDBA_RESP_CMDID + */ +struct wmi_rcp_addba_resp_cmd { + + #define CIDXTID_CID_POS (0) + #define CIDXTID_CID_LEN (4) + #define CIDXTID_CID_MSK (0xF) + #define CIDXTID_TID_POS (4) + #define CIDXTID_TID_LEN (4) + #define CIDXTID_TID_MSK (0xF0) + u8 cidxtid; + + u8 dialog_token; + __le16 status_code; + __le16 ba_param_set; /* ieee80211_ba_parameterset field to send */ + __le16 ba_timeout; +} __packed; + +/* + * WMI_RCP_DELBA_CMDID + */ +struct wmi_rcp_delba_cmd { + + #define CIDXTID_CID_POS (0) + #define CIDXTID_CID_LEN (4) + #define CIDXTID_CID_MSK (0xF) + #define CIDXTID_TID_POS (4) + #define CIDXTID_TID_LEN (4) + #define CIDXTID_TID_MSK (0xF0) + u8 cidxtid; + + u8 reserved; + __le16 reason; +} __packed; + +/* + * WMI_RCP_ADDBA_REQ_CMDID + */ +struct wmi_rcp_addba_req_cmd { + + #define CIDXTID_CID_POS (0) + #define CIDXTID_CID_LEN (4) + #define CIDXTID_CID_MSK (0xF) + #define CIDXTID_TID_POS (4) + #define CIDXTID_TID_LEN (4) + #define CIDXTID_TID_MSK (0xF0) + u8 cidxtid; + + u8 dialog_token; + /* ieee80211_ba_parameterset field as it received */ + __le16 ba_param_set; + __le16 ba_timeout; + /* ieee80211_ba_seqstrl field as it received */ + __le16 ba_seq_ctrl; +} __packed; + +/* + * WMI_SET_MAC_ADDRESS_CMDID + */ +struct wmi_set_mac_address_cmd { + u8 mac[WMI_MAC_LEN]; + u8 reserved[2]; +} __packed; + + +/* +* WMI_EAPOL_TX_CMDID +*/ +struct wmi_eapol_tx_cmd { + u8 dst_mac[WMI_MAC_LEN]; + __le16 eapol_len; + u8 eapol[0]; +} __packed; + +/* + * WMI_ECHO_CMDID + * + * Check FW is alive + * + * WMI_DEEP_ECHO_CMDID + * + * Check FW and ucode are alive + * + * Returned event: WMI_ECHO_RSP_EVENTID + * same event for both commands + */ +struct wmi_echo_cmd { + __le32 value; +} __packed; + +/* + * WMI Events + */ + +/* + * List of Events (target to host) + */ +enum wmi_event_id { + WMI_IMM_RSP_EVENTID = 0x0000, + WMI_READY_EVENTID = 0x1001, + WMI_CONNECT_EVENTID = 0x1002, + WMI_DISCONNECT_EVENTID = 0x1003, + WMI_SCAN_COMPLETE_EVENTID = 0x100a, + WMI_REPORT_STATISTICS_EVENTID = 0x100b, + WMI_RD_MEM_RSP_EVENTID = 0x1800, + WMI_FW_READY_EVENTID = 0x1801, + WMI_EXIT_FAST_MEM_ACC_MODE_EVENTID = 0x0200, + WMI_ECHO_RSP_EVENTID = 0x1803, + WMI_CONFIG_MAC_DONE_EVENTID = 0x1805, + WMI_CONFIG_PHY_DEBUG_DONE_EVENTID = 0x1806, + WMI_ADD_STATION_DONE_EVENTID = 0x1807, + WMI_ADD_DEBUG_TX_PCKT_DONE_EVENTID = 0x1808, + WMI_PHY_GET_STATISTICS_EVENTID = 0x1809, + WMI_FS_TUNE_DONE_EVENTID = 0x180a, + WMI_CORR_MEASURE_DONE_EVENTID = 0x180b, + WMI_TEMP_SENSE_DONE_EVENTID = 0x180e, + WMI_DC_CALIB_DONE_EVENTID = 0x180f, + WMI_IQ_TX_CALIB_DONE_EVENTID = 0x1811, + WMI_IQ_RX_CALIB_DONE_EVENTID = 0x1812, + WMI_SET_WORK_MODE_DONE_EVENTID = 0x1815, + WMI_LO_LEAKAGE_CALIB_DONE_EVENTID = 0x1816, + WMI_MARLON_R_ACTIVATE_DONE_EVENTID = 0x1817, + WMI_MARLON_R_READ_DONE_EVENTID = 0x1818, + WMI_MARLON_R_WRITE_DONE_EVENTID = 0x1819, + WMI_MARLON_R_TXRX_SEL_DONE_EVENTID = 0x181a, + WMI_SILENT_RSSI_CALIB_DONE_EVENTID = 0x181d, + + WMI_CFG_RX_CHAIN_DONE_EVENTID = 0x1820, + WMI_VRING_CFG_DONE_EVENTID = 0x1821, + WMI_RX_ON_DONE_EVENTID = 0x1822, + WMI_BA_STATUS_EVENTID = 0x1823, + WMI_RCP_ADDBA_REQ_EVENTID = 0x1824, + WMI_ADDBA_RESP_SENT_EVENTID = 0x1825, + WMI_DELBA_EVENTID = 0x1826, + WMI_GET_SSID_EVENTID = 0x1828, + WMI_GET_PCP_CHANNEL_EVENTID = 0x182a, + WMI_SW_TX_COMPLETE_EVENTID = 0x182b, + WMI_RX_OFF_DONE_EVENTID = 0x182c, + + WMI_READ_MAC_RXQ_EVENTID = 0x1830, + WMI_READ_MAC_TXQ_EVENTID = 0x1831, + WMI_WRITE_MAC_RXQ_EVENTID = 0x1832, + WMI_WRITE_MAC_TXQ_EVENTID = 0x1833, + WMI_WRITE_MAC_XQ_FIELD_EVENTID = 0x1834, + + WMI_BEAFORMING_MGMT_DONE_EVENTID = 0x1836, + WMI_BF_TXSS_MGMT_DONE_EVENTID = 0x1837, + WMI_BF_RXSS_MGMT_DONE_EVENTID = 0x1839, + WMI_RS_MGMT_DONE_EVENTID = 0x1852, + WMI_RF_MGMT_STATUS_EVENTID = 0x1853, + WMI_BF_SM_MGMT_DONE_EVENTID = 0x1838, + WMI_RX_MGMT_PACKET_EVENTID = 0x1840, + + /* Performance monitoring events */ + WMI_DATA_PORT_OPEN_EVENTID = 0x1860, + WMI_WBE_LINKDOWN_EVENTID = 0x1861, + + WMI_BF_CTRL_DONE_EVENTID = 0x1862, + WMI_NOTIFY_REQ_DONE_EVENTID = 0x1863, + WMI_GET_STATUS_DONE_EVENTID = 0x1864, + + WMI_UNIT_TEST_EVENTID = 0x1900, + WMI_FLASH_READ_DONE_EVENTID = 0x1902, + WMI_FLASH_WRITE_DONE_EVENTID = 0x1903, + + WMI_SET_CHANNEL_EVENTID = 0x9000, + WMI_ASSOC_REQ_EVENTID = 0x9001, + WMI_EAPOL_RX_EVENTID = 0x9002, + WMI_MAC_ADDR_RESP_EVENTID = 0x9003, + WMI_FW_VER_EVENTID = 0x9004, +}; + +/* + * Events data structures + */ + +/* + * WMI_RF_MGMT_STATUS_EVENTID + */ +enum wmi_rf_status { + WMI_RF_ENABLED = 0, + WMI_RF_DISABLED_HW = 1, + WMI_RF_DISABLED_SW = 2, + WMI_RF_DISABLED_HW_SW = 3, +}; + +struct wmi_rf_mgmt_status_event { + __le32 rf_status; +} __packed; + +/* + * WMI_GET_STATUS_DONE_EVENTID + */ +struct wmi_get_status_done_event { + __le32 is_associated; + u8 cid; + u8 reserved0[3]; + u8 bssid[WMI_MAC_LEN]; + u8 channel; + u8 reserved1; + u8 network_type; + u8 reserved2[3]; + __le32 ssid_len; + u8 ssid[WMI_MAX_SSID_LEN]; + __le32 rf_status; + __le32 is_secured; +} __packed; + +/* + * WMI_FW_VER_EVENTID + */ +struct wmi_fw_ver_event { + u8 major; + u8 minor; + __le16 subminor; + __le16 build; +} __packed; + +/* +* WMI_MAC_ADDR_RESP_EVENTID +*/ +struct wmi_mac_addr_resp_event { + u8 mac[WMI_MAC_LEN]; + u8 auth_mode; + u8 crypt_mode; + __le32 offload_mode; +} __packed; + +/* +* WMI_EAPOL_RX_EVENTID +*/ +struct wmi_eapol_rx_event { + u8 src_mac[WMI_MAC_LEN]; + __le16 eapol_len; + u8 eapol[0]; +} __packed; + +/* +* WMI_READY_EVENTID +*/ +enum wmi_phy_capability { + WMI_11A_CAPABILITY = 1, + WMI_11G_CAPABILITY = 2, + WMI_11AG_CAPABILITY = 3, + WMI_11NA_CAPABILITY = 4, + WMI_11NG_CAPABILITY = 5, + WMI_11NAG_CAPABILITY = 6, + WMI_11AD_CAPABILITY = 7, + WMI_11N_CAPABILITY_OFFSET = WMI_11NA_CAPABILITY - WMI_11A_CAPABILITY, +}; + +struct wmi_ready_event { + __le32 sw_version; + __le32 abi_version; + u8 mac[WMI_MAC_LEN]; + u8 phy_capability; /* enum wmi_phy_capability */ + u8 reserved; +} __packed; + +/* + * WMI_NOTIFY_REQ_DONE_EVENTID + */ +struct wmi_notify_req_done_event { + __le32 status; + __le64 tsf; + __le32 snr_val; + __le32 tx_tpt; + __le32 tx_goodput; + __le32 rx_goodput; + __le16 bf_mcs; + __le16 my_rx_sector; + __le16 my_tx_sector; + __le16 other_rx_sector; + __le16 other_tx_sector; + __le16 range; +} __packed; + +/* + * WMI_CONNECT_EVENTID + */ +struct wmi_connect_event { + u8 channel; + u8 reserved0; + u8 bssid[WMI_MAC_LEN]; + __le16 listen_interval; + __le16 beacon_interval; + u8 network_type; + u8 reserved1[3]; + u8 beacon_ie_len; + u8 assoc_req_len; + u8 assoc_resp_len; + u8 cid; + u8 reserved2[3]; + u8 assoc_info[0]; +} __packed; + +/* + * WMI_DISCONNECT_EVENTID + */ +enum wmi_disconnect_reason { + WMI_DIS_REASON_NO_NETWORK_AVAIL = 1, + WMI_DIS_REASON_LOST_LINK = 2, /* bmiss */ + WMI_DIS_REASON_DISCONNECT_CMD = 3, + WMI_DIS_REASON_BSS_DISCONNECTED = 4, + WMI_DIS_REASON_AUTH_FAILED = 5, + WMI_DIS_REASON_ASSOC_FAILED = 6, + WMI_DIS_REASON_NO_RESOURCES_AVAIL = 7, + WMI_DIS_REASON_CSERV_DISCONNECT = 8, + WMI_DIS_REASON_INVALID_PROFILE = 10, + WMI_DIS_REASON_DOT11H_CHANNEL_SWITCH = 11, + WMI_DIS_REASON_PROFILE_MISMATCH = 12, + WMI_DIS_REASON_CONNECTION_EVICTED = 13, + WMI_DIS_REASON_IBSS_MERGE = 14, +}; + +struct wmi_disconnect_event { + __le16 protocol_reason_status; /* reason code, see 802.11 spec. */ + u8 bssid[WMI_MAC_LEN]; /* set if known */ + u8 disconnect_reason; /* see wmi_disconnect_reason_e */ + u8 assoc_resp_len; + u8 assoc_info[0]; +} __packed; + +/* + * WMI_SCAN_COMPLETE_EVENTID + */ +struct wmi_scan_complete_event { + __le32 status; +} __packed; + +/* + * WMI_BA_STATUS_EVENTID + */ +enum wmi_vring_ba_status { + WMI_BA_AGREED = 0, + WMI_BA_NON_AGREED = 1, +}; + +struct wmi_vring_ba_status_event { + __le16 status; + u8 reserved[2]; + u8 ringid; + u8 agg_wsize; + __le16 ba_timeout; +} __packed; + +/* + * WMI_DELBA_EVENTID + */ +struct wmi_delba_event { + + #define CIDXTID_CID_POS (0) + #define CIDXTID_CID_LEN (4) + #define CIDXTID_CID_MSK (0xF) + #define CIDXTID_TID_POS (4) + #define CIDXTID_TID_LEN (4) + #define CIDXTID_TID_MSK (0xF0) + u8 cidxtid; + + u8 from_initiator; + __le16 reason; +} __packed; + +/* + * WMI_VRING_CFG_DONE_EVENTID + */ +enum wmi_vring_cfg_done_event_status { + WMI_VRING_CFG_SUCCESS = 0, + WMI_VRING_CFG_FAILURE = 1, +}; + +struct wmi_vring_cfg_done_event { + u8 ringid; + u8 status; + u8 reserved[2]; + __le32 tx_vring_tail_ptr; +} __packed; + +/* + * WMI_ADDBA_RESP_SENT_EVENTID + */ +enum wmi_rcp_addba_resp_sent_event_status { + WMI_ADDBA_SUCCESS = 0, + WMI_ADDBA_FAIL = 1, +}; + +struct wmi_rcp_addba_resp_sent_event { + + #define CIDXTID_CID_POS (0) + #define CIDXTID_CID_LEN (4) + #define CIDXTID_CID_MSK (0xF) + #define CIDXTID_TID_POS (4) + #define CIDXTID_TID_LEN (4) + #define CIDXTID_TID_MSK (0xF0) + u8 cidxtid; + + u8 reserved; + __le16 status; +} __packed; + +/* + * WMI_RCP_ADDBA_REQ_EVENTID + */ +struct wmi_rcp_addba_req_event { + + #define CIDXTID_CID_POS (0) + #define CIDXTID_CID_LEN (4) + #define CIDXTID_CID_MSK (0xF) + #define CIDXTID_TID_POS (4) + #define CIDXTID_TID_LEN (4) + #define CIDXTID_TID_MSK (0xF0) + u8 cidxtid; + + u8 dialog_token; + __le16 ba_param_set; /* ieee80211_ba_parameterset as it received */ + __le16 ba_timeout; + __le16 ba_seq_ctrl; /* ieee80211_ba_seqstrl field as it received */ +} __packed; + +/* + * WMI_CFG_RX_CHAIN_DONE_EVENTID + */ +enum wmi_cfg_rx_chain_done_event_status { + WMI_CFG_RX_CHAIN_SUCCESS = 1, +}; + +struct wmi_cfg_rx_chain_done_event { + __le32 rx_ring_tail_ptr; /* Rx V-Ring Tail pointer */ + __le32 status; +} __packed; + +/* + * WMI_WBE_LINKDOWN_EVENTID + */ +enum wmi_wbe_link_down_event_reason { + WMI_WBE_REASON_USER_REQUEST = 0, + WMI_WBE_REASON_RX_DISASSOC = 1, + WMI_WBE_REASON_BAD_PHY_LINK = 2, +}; + +struct wmi_wbe_link_down_event { + u8 cid; + u8 reserved[3]; + __le32 reason; +} __packed; + +/* + * WMI_DATA_PORT_OPEN_EVENTID + */ +struct wmi_data_port_open_event { + u8 cid; + u8 reserved[3]; +} __packed; + +/* + * WMI_GET_PCP_CHANNEL_EVENTID + */ +struct wmi_get_pcp_channel_event { + u8 channel; + u8 reserved[3]; +} __packed; + +/* + * WMI_SW_TX_COMPLETE_EVENTID + */ +enum wmi_sw_tx_status { + WMI_TX_SW_STATUS_SUCCESS = 0, + WMI_TX_SW_STATUS_FAILED_NO_RESOURCES = 1, + WMI_TX_SW_STATUS_FAILED_TX = 2, +}; + +struct wmi_sw_tx_complete_event { + u8 status; /* enum wmi_sw_tx_status */ + u8 reserved[3]; +} __packed; + +/* + * WMI_GET_SSID_EVENTID + */ +struct wmi_get_ssid_event { + __le32 ssid_len; + u8 ssid[WMI_MAX_SSID_LEN]; +} __packed; + +/* + * WMI_RX_MGMT_PACKET_EVENTID + */ +struct wmi_rx_mgmt_info { + u8 mcs; + s8 snr; + __le16 range; + __le16 stype; + __le16 status; + __le32 len; + u8 qid; + u8 mid; + u8 cid; + u8 channel; /* From Radio MNGR */ +} __packed; + +struct wmi_rx_mgmt_packet_event { + struct wmi_rx_mgmt_info info; + u8 payload[0]; +} __packed; + +/* + * WMI_ECHO_RSP_EVENTID + */ +struct wmi_echo_event { + __le32 echoed_value; +} __packed; + +#endif /* __WILOCITY_WMI_H__ */ -- cgit v0.10.2 From 267f8fa2e1eef0612b2007e1f1846bcbc35cc1fa Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 4 Jan 2013 21:18:12 +0000 Subject: ASoC: wm2000: Fix sense of speech clarity enable Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c index 1cbe88f..12bcae6 100644 --- a/sound/soc/codecs/wm2000.c +++ b/sound/soc/codecs/wm2000.c @@ -209,9 +209,9 @@ static int wm2000_power_up(struct i2c_client *i2c, int analogue) ret = wm2000_read(i2c, WM2000_REG_SPEECH_CLARITY); if (wm2000->speech_clarity) - ret &= ~WM2000_SPEECH_CLARITY; - else ret |= WM2000_SPEECH_CLARITY; + else + ret &= ~WM2000_SPEECH_CLARITY; wm2000_write(i2c, WM2000_REG_SPEECH_CLARITY, ret); wm2000_write(i2c, WM2000_REG_SYS_START0, 0x33); -- cgit v0.10.2 From d591390da94234d5b8eb1bbd9f2a25d2e780d528 Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Sat, 22 Dec 2012 04:09:17 +0000 Subject: KVM: PPC: Book3S HV: Fix compilation without CONFIG_PPC_POWERNV MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixes this build breakage: arch/powerpc/kvm/book3s_hv_ras.c: In function ‘kvmppc_realmode_mc_power7’: arch/powerpc/kvm/book3s_hv_ras.c:126:23: error: ‘struct paca_struct’ has no member named ‘opal_mc_evt’ Signed-off-by: Andreas Schwab Signed-off-by: Alexander Graf diff --git a/arch/powerpc/kvm/book3s_hv_ras.c b/arch/powerpc/kvm/book3s_hv_ras.c index 35f3cf0..a353c48 100644 --- a/arch/powerpc/kvm/book3s_hv_ras.c +++ b/arch/powerpc/kvm/book3s_hv_ras.c @@ -79,7 +79,9 @@ static void flush_tlb_power7(struct kvm_vcpu *vcpu) static long kvmppc_realmode_mc_power7(struct kvm_vcpu *vcpu) { unsigned long srr1 = vcpu->arch.shregs.msr; +#ifdef CONFIG_PPC_POWERNV struct opal_machine_check_event *opal_evt; +#endif long handled = 1; if (srr1 & SRR1_MC_LDSTERR) { @@ -117,6 +119,7 @@ static long kvmppc_realmode_mc_power7(struct kvm_vcpu *vcpu) handled = 0; } +#ifdef CONFIG_PPC_POWERNV /* * See if OPAL has already handled the condition. * We assume that if the condition is recovered then OPAL @@ -131,6 +134,7 @@ static long kvmppc_realmode_mc_power7(struct kvm_vcpu *vcpu) if (handled) opal_evt->in_use = 0; +#endif return handled; } -- cgit v0.10.2 From 93be8788e648817d62fda33e2998eb6ca6ebf3a3 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 2 Jan 2013 10:31:22 +0000 Subject: drm/i915; Only increment the user-pin-count after successfully pinning the bo As along the error path we do not correct the user pin-count for the failure, we may end up with userspace believing that it has a pinned object at offset 0 (when interrupted by a signal for example). Signed-off-by: Chris Wilson Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index da3c82e3..5791ecd 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3522,14 +3522,15 @@ i915_gem_pin_ioctl(struct drm_device *dev, void *data, goto out; } - obj->user_pin_count++; - obj->pin_filp = file; - if (obj->user_pin_count == 1) { + if (obj->user_pin_count == 0) { ret = i915_gem_object_pin(obj, args->alignment, true, false); if (ret) goto out; } + obj->user_pin_count++; + obj->pin_filp = file; + /* XXX - flush the CPU caches for pinned objects * as the X server doesn't manage domains yet */ -- cgit v0.10.2 From 48e858340dae43189a4e55647f6eac736766f828 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Mon, 7 Jan 2013 10:27:13 +0100 Subject: Revert "drm/i915: no lvds quirk for Zotac ZDBOX SD ID12/ID13" This reverts commit 9756fe38d10b2bf90c81dc4d2f17d5632e135364. The bogus lvds output is actually a lvds->hdmi bridge, which we don't really support. But unconditionally disabling it breaks some existing setups. Reported-by: John Tapsell References: http://permalink.gmane.org/gmane.comp.freedesktop.xorg.drivers.intel/17237 Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index b9a660a..17aee74 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -776,14 +776,6 @@ static const struct dmi_system_id intel_no_lvds[] = { }, { .callback = intel_no_lvds_dmi_callback, - .ident = "ZOTAC ZBOXSD-ID12/ID13", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "ZOTAC"), - DMI_MATCH(DMI_BOARD_NAME, "ZBOXSD-ID12/ID13"), - }, - }, - { - .callback = intel_no_lvds_dmi_callback, .ident = "Gigabyte GA-D525TUD", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."), -- cgit v0.10.2 From 3490ea5de6ac4af309c3df8a26a5cca61306334c Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 7 Jan 2013 10:11:40 +0000 Subject: drm/i915: Treat crtc->mode.clock == 0 as disabled Prevent a divide-by-zero by consistently treating an 'active' CRTC without a mode set as actually disabled. This looks to have been first introduced with commit 24929352481f085c5f85d4d4cbc919ddf106d381 Author: Daniel Vetter Date: Mon Jul 2 20:28:59 2012 +0200 drm/i915: read out the modeset hw state at load and resume time but then combined with commit b0a2658acb5bf9ca86b4aab011b7106de3af0add Author: Daniel Vetter Date: Tue Dec 18 09:37:54 2012 +0100 drm/i915: don't disable disconnected outputs it finally started oopsing. Signed-off-by: Chris Wilson Reported-and-tested-by: Alexey Zaytsev Tested-by: Sedat Dilek Cc: Daniel Vetter Cc: Jesse Barnes Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index e6f54ff..e83a117 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -44,6 +44,14 @@ * i915.i915_enable_fbc parameter */ +static bool intel_crtc_active(struct drm_crtc *crtc) +{ + /* Be paranoid as we can arrive here with only partial + * state retrieved from the hardware during setup. + */ + return to_intel_crtc(crtc)->active && crtc->fb && crtc->mode.clock; +} + static void i8xx_disable_fbc(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -405,9 +413,8 @@ void intel_update_fbc(struct drm_device *dev) * - going to an unsupported config (interlace, pixel multiply, etc.) */ list_for_each_entry(tmp_crtc, &dev->mode_config.crtc_list, head) { - if (to_intel_crtc(tmp_crtc)->active && - !to_intel_crtc(tmp_crtc)->primary_disabled && - tmp_crtc->fb) { + if (intel_crtc_active(tmp_crtc) && + !to_intel_crtc(tmp_crtc)->primary_disabled) { if (crtc) { DRM_DEBUG_KMS("more than one pipe active, disabling compression\n"); dev_priv->no_fbc_reason = FBC_MULTIPLE_PIPES; @@ -992,7 +999,7 @@ static struct drm_crtc *single_enabled_crtc(struct drm_device *dev) struct drm_crtc *crtc, *enabled = NULL; list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - if (to_intel_crtc(crtc)->active && crtc->fb) { + if (intel_crtc_active(crtc)) { if (enabled) return NULL; enabled = crtc; @@ -1086,7 +1093,7 @@ static bool g4x_compute_wm0(struct drm_device *dev, int entries, tlb_miss; crtc = intel_get_crtc_for_plane(dev, plane); - if (crtc->fb == NULL || !to_intel_crtc(crtc)->active) { + if (!intel_crtc_active(crtc)) { *cursor_wm = cursor->guard_size; *plane_wm = display->guard_size; return false; @@ -1215,7 +1222,7 @@ static bool vlv_compute_drain_latency(struct drm_device *dev, int entries; crtc = intel_get_crtc_for_plane(dev, plane); - if (crtc->fb == NULL || !to_intel_crtc(crtc)->active) + if (!intel_crtc_active(crtc)) return false; clock = crtc->mode.clock; /* VESA DOT Clock */ @@ -1476,7 +1483,7 @@ static void i9xx_update_wm(struct drm_device *dev) fifo_size = dev_priv->display.get_fifo_size(dev, 0); crtc = intel_get_crtc_for_plane(dev, 0); - if (to_intel_crtc(crtc)->active && crtc->fb) { + if (intel_crtc_active(crtc)) { int cpp = crtc->fb->bits_per_pixel / 8; if (IS_GEN2(dev)) cpp = 4; @@ -1490,7 +1497,7 @@ static void i9xx_update_wm(struct drm_device *dev) fifo_size = dev_priv->display.get_fifo_size(dev, 1); crtc = intel_get_crtc_for_plane(dev, 1); - if (to_intel_crtc(crtc)->active && crtc->fb) { + if (intel_crtc_active(crtc)) { int cpp = crtc->fb->bits_per_pixel / 8; if (IS_GEN2(dev)) cpp = 4; @@ -2044,7 +2051,7 @@ sandybridge_compute_sprite_wm(struct drm_device *dev, int plane, int entries, tlb_miss; crtc = intel_get_crtc_for_plane(dev, plane); - if (crtc->fb == NULL || !to_intel_crtc(crtc)->active) { + if (!intel_crtc_active(crtc)) { *sprite_wm = display->guard_size; return false; } -- cgit v0.10.2 From 182ae55c1285080086cf4ef969ad09d84e00237f Mon Sep 17 00:00:00 2001 From: "Lee, Chun-Yi" Date: Fri, 14 Dec 2012 16:14:24 +0800 Subject: MAINTAINERS: change the mail address of acer-wmi/msi-laptop maintainer Due to I moved to use suse.com mail address, so, add patch to change the mail address in MAINTAINERS file. Cc: Matthew Garrett Signed-off-by: Lee, Chun-Yi Signed-off-by: Matthew Garrett diff --git a/MAINTAINERS b/MAINTAINERS index 915564e..3a21fe7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -228,7 +228,7 @@ S: Maintained F: drivers/platform/x86/acerhdf.c ACER WMI LAPTOP EXTRAS -M: Joey Lee +M: "Lee, Chun-Yi" L: platform-driver-x86@vger.kernel.org S: Maintained F: drivers/platform/x86/acer-wmi.c @@ -5077,7 +5077,7 @@ S: Maintained F: drivers/media/radio/radio-mr800.c MSI LAPTOP SUPPORT -M: "Lee, Chun-Yi" +M: "Lee, Chun-Yi" L: platform-driver-x86@vger.kernel.org S: Maintained F: drivers/platform/x86/msi-laptop.c -- cgit v0.10.2 From f20aaba9819d0801fb1314363f97239da0100bac Mon Sep 17 00:00:00 2001 From: "Lee, Chun-Yi" Date: Fri, 14 Dec 2012 16:14:26 +0800 Subject: acer-wmi: fix obj is NULL but dereferenced Fengguang Wu run coccinelle and warns about: drivers/platform/x86/acer-wmi.c:1200:17-21: ERROR: obj is NULL but dereferenced. drivers/platform/x86/acer-wmi.c:891:17-21: ERROR: obj is NULL but dereferenced. drivers/platform/x86/acer-wmi.c:1953:17-21: ERROR: obj is NULL but dereferenced. It causes by the code in patch 987dfbaa65b2c3568b85e29d2598da08a011ee09 doesn't check obj variable should not be NULL. There have risk for dereference a NULL obj, so add this patch to fix. Cc: Carlos Corbacho Cc: Matthew Garrett Cc: Dmitry Torokhov Cc: Corentin Chary Cc: Thomas Renninger Signed-off-by: Lee, Chun-Yi Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 06f4eb7..ff0a866 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -875,7 +875,7 @@ WMI_execute_u32(u32 method_id, u32 in, u32 *out) struct acpi_buffer input = { (acpi_size) sizeof(u32), (void *)(&in) }; struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object *obj; - u32 tmp; + u32 tmp = 0; acpi_status status; status = wmi_evaluate_method(WMID_GUID1, 1, method_id, &input, &result); @@ -884,14 +884,14 @@ WMI_execute_u32(u32 method_id, u32 in, u32 *out) return status; obj = (union acpi_object *) result.pointer; - if (obj && obj->type == ACPI_TYPE_BUFFER && - (obj->buffer.length == sizeof(u32) || - obj->buffer.length == sizeof(u64))) { - tmp = *((u32 *) obj->buffer.pointer); - } else if (obj->type == ACPI_TYPE_INTEGER) { - tmp = (u32) obj->integer.value; - } else { - tmp = 0; + if (obj) { + if (obj->type == ACPI_TYPE_BUFFER && + (obj->buffer.length == sizeof(u32) || + obj->buffer.length == sizeof(u64))) { + tmp = *((u32 *) obj->buffer.pointer); + } else if (obj->type == ACPI_TYPE_INTEGER) { + tmp = (u32) obj->integer.value; + } } if (out) @@ -1193,12 +1193,14 @@ static acpi_status WMID_set_capabilities(void) return status; obj = (union acpi_object *) out.pointer; - if (obj && obj->type == ACPI_TYPE_BUFFER && - (obj->buffer.length == sizeof(u32) || - obj->buffer.length == sizeof(u64))) { - devices = *((u32 *) obj->buffer.pointer); - } else if (obj->type == ACPI_TYPE_INTEGER) { - devices = (u32) obj->integer.value; + if (obj) { + if (obj->type == ACPI_TYPE_BUFFER && + (obj->buffer.length == sizeof(u32) || + obj->buffer.length == sizeof(u64))) { + devices = *((u32 *) obj->buffer.pointer); + } else if (obj->type == ACPI_TYPE_INTEGER) { + devices = (u32) obj->integer.value; + } } else { kfree(out.pointer); return AE_ERROR; @@ -1946,12 +1948,14 @@ static u32 get_wmid_devices(void) return 0; obj = (union acpi_object *) out.pointer; - if (obj && obj->type == ACPI_TYPE_BUFFER && - (obj->buffer.length == sizeof(u32) || - obj->buffer.length == sizeof(u64))) { - devices = *((u32 *) obj->buffer.pointer); - } else if (obj->type == ACPI_TYPE_INTEGER) { - devices = (u32) obj->integer.value; + if (obj) { + if (obj->type == ACPI_TYPE_BUFFER && + (obj->buffer.length == sizeof(u32) || + obj->buffer.length == sizeof(u64))) { + devices = *((u32 *) obj->buffer.pointer); + } else if (obj->type == ACPI_TYPE_INTEGER) { + devices = (u32) obj->integer.value; + } } kfree(out.pointer); -- cgit v0.10.2 From 8e2286ce073f8f40794669956de8fe92da1d9da0 Mon Sep 17 00:00:00 2001 From: "Lee, Chun-Yi" Date: Fri, 14 Dec 2012 16:14:27 +0800 Subject: acer-wmi: change to emit touchpad on off key KEY_TOUCHPAD_TOOGLE key is for notice userland change touchpad state via xf86-input-synaptics on the machine that don't toggle touchpad in hardware. But, acer laptop actually toggle touchpad in hardware. So, this patch change to emit KEY_TOUCHPAD_ON/OFF key when acer-wmi grab device state of touchpad. Reference: brc#848270 https://bugzilla.redhat.com/show_bug.cgi?id=848270 Tested-by: Nathanael Noblet Cc: Carlos Corbacho Cc: Matthew Garrett Cc: Dmitry Torokhov Cc: Corentin Chary Cc: Thomas Renninger Signed-off-by: Lee, Chun-Yi Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index ff0a866..44f62b2 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -125,7 +125,9 @@ static const struct key_entry acer_wmi_keymap[] = { {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} }, {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */ {KE_IGNORE, 0x81, {KEY_SLEEP} }, - {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad On/Off */ + {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */ + {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} }, + {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} }, {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} }, {KE_END, 0} }; @@ -147,6 +149,7 @@ struct event_return_value { #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */ #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */ #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */ +#define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */ struct lm_input_params { u8 function_num; /* Function Number */ @@ -1678,6 +1681,7 @@ static void acer_wmi_notify(u32 value, void *context) acpi_status status; u16 device_state; const struct key_entry *key; + u32 scancode; status = wmi_get_event_data(value, &response); if (status != AE_OK) { @@ -1714,6 +1718,7 @@ static void acer_wmi_notify(u32 value, void *context) pr_warn("Unknown key number - 0x%x\n", return_value.key_num); } else { + scancode = return_value.key_num; switch (key->keycode) { case KEY_WLAN: case KEY_BLUETOOTH: @@ -1727,9 +1732,11 @@ static void acer_wmi_notify(u32 value, void *context) rfkill_set_sw_state(bluetooth_rfkill, !(device_state & ACER_WMID3_GDS_BLUETOOTH)); break; + case KEY_TOUCHPAD_TOGGLE: + scancode = (device_state & ACER_WMID3_GDS_TOUCHPAD) ? + KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF; } - sparse_keymap_report_entry(acer_wmi_input_dev, key, - 1, true); + sparse_keymap_report_event(acer_wmi_input_dev, scancode, 1, true); } break; case WMID_ACCEL_EVENT: -- cgit v0.10.2 From 68825ce20e81e2165ec4654c3296e5e8c1dae765 Mon Sep 17 00:00:00 2001 From: Sergey Senozhatsky Date: Mon, 26 Nov 2012 21:35:02 +0300 Subject: acer-wmi: add Aspire 5741G touchpad toggle key Add Aspire 5741G KEY_TOUCHPAD_TOGGLE to wmi keymap, preventing "acer_wmi: Unknown key number - 0x85" error. Signed-off-by: Sergey Senozhatsky Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 44f62b2..afed701 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -129,6 +129,7 @@ static const struct key_entry acer_wmi_keymap[] = { {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} }, {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} }, {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} }, + {KE_KEY, 0x85, {KEY_TOUCHPAD_TOGGLE} }, {KE_END, 0} }; -- cgit v0.10.2 From e04c200f1f2de8eaa2f5af6d97e7e213a1abb424 Mon Sep 17 00:00:00 2001 From: Seth Forshee Date: Wed, 5 Dec 2012 16:08:33 -0600 Subject: samsung-laptop: Add quirk for broken acpi_video backlight on N250P BugLink: http://bugs.launchpad.net/bugs/1086921 Cc: stable@vger.kernel.org # v3.4+ Signed-off-by: Seth Forshee Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c index dd90d15..71623a2 100644 --- a/drivers/platform/x86/samsung-laptop.c +++ b/drivers/platform/x86/samsung-laptop.c @@ -1523,6 +1523,16 @@ static struct dmi_system_id __initdata samsung_dmi_table[] = { }, .driver_data = &samsung_broken_acpi_video, }, + { + .callback = samsung_dmi_matched, + .ident = "N250P", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), + DMI_MATCH(DMI_PRODUCT_NAME, "N250P"), + DMI_MATCH(DMI_BOARD_NAME, "N250P"), + }, + .driver_data = &samsung_broken_acpi_video, + }, { }, }; MODULE_DEVICE_TABLE(dmi, samsung_dmi_table); -- cgit v0.10.2 From dcbeec264d73b7228ffdfe767eab69b2353099b1 Mon Sep 17 00:00:00 2001 From: Mattia Dongili Date: Fri, 21 Dec 2012 07:21:09 +0900 Subject: sony-laptop: fix SNC buffer calls when SN06 returns Integers SN06 in some cases returns an Integer instead of a buffer. While the code handling the return value was trying to cope with the difference, the memcpy call was not making any difference between the two types of acpi_object union. This regression was introduced in 3.5. While there also rework the return value logic to improve readability. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=48671 Cc: Cc: Fabrizio Narni Cc: Signed-off-by: Mattia Dongili Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index daaddec..b8ad71f 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -786,28 +786,29 @@ static int sony_nc_int_call(acpi_handle handle, char *name, int *value, static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value, void *buffer, size_t buflen) { + int ret = 0; size_t len = len; union acpi_object *object = __call_snc_method(handle, name, value); if (!object) return -EINVAL; - if (object->type == ACPI_TYPE_BUFFER) + if (object->type == ACPI_TYPE_BUFFER) { len = MIN(buflen, object->buffer.length); + memcpy(buffer, object->buffer.pointer, len); - else if (object->type == ACPI_TYPE_INTEGER) + } else if (object->type == ACPI_TYPE_INTEGER) { len = MIN(buflen, sizeof(object->integer.value)); + memcpy(buffer, &object->integer.value, len); - else { + } else { pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n", ACPI_TYPE_BUFFER, object->type); - kfree(object); - return -EINVAL; + ret = -EINVAL; } - memcpy(buffer, object->buffer.pointer, len); kfree(object); - return 0; + return ret; } struct sony_nc_handles { -- cgit v0.10.2 From db210312f77b8e0e3652bbbaafe879c24c8ba604 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 13 Dec 2012 19:57:55 -0500 Subject: staging: Make SystemBase PCI Multiport UART only for x86 The sb105x SystemBase PCI UART driver in staging has code specific for x86. This breaks allyesconfig builds for other archs. For now, the quick fix is simply to make this driver depend on x86. When I get time, I'll swap this card out of my main machine and put it into my PowerPC64 box, and get it working there. Then it may become a good samaritan and play nice with other archs. Reported-by: Stephen Rothwell Signed-off-by: Steven Rostedt Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/sb105x/Kconfig b/drivers/staging/sb105x/Kconfig index ac87c5e..1facad6 100644 --- a/drivers/staging/sb105x/Kconfig +++ b/drivers/staging/sb105x/Kconfig @@ -2,6 +2,7 @@ config SB105X tristate "SystemBase PCI Multiport UART" select SERIAL_CORE depends on PCI + depends on X86 help A driver for the SystemBase Multi-2/PCI serial card -- cgit v0.10.2 From b1255fb989e1d11295cd7e530848b6a05baa9331 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 14 Dec 2012 11:45:42 -0500 Subject: staging: Enable parport sb105x drivers if parport is configured Some of the drivers that the sb105x SystemBase handles are for parallel port cards. If PARPORT isn't configured, the build fails. Only initialize the parallel port cards if PARPORT is configured in. Reported-by: Wu Fengguang Signed-off-by: Steven Rostedt Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/sb105x/sb_pci_mp.c b/drivers/staging/sb105x/sb_pci_mp.c index edb2a85..131afd0c 100644 --- a/drivers/staging/sb105x/sb_pci_mp.c +++ b/drivers/staging/sb105x/sb_pci_mp.c @@ -3054,6 +3054,7 @@ static int init_mp_dev(struct pci_dev *pcidev, mppcibrd_t brd) sbdev->nr_ports = ((portnum_hex/16)*10) + (portnum_hex % 16); } break; +#ifdef CONFIG_PARPORT case PCI_DEVICE_ID_MP2S1P : sbdev->nr_ports = 2; @@ -3073,6 +3074,7 @@ static int init_mp_dev(struct pci_dev *pcidev, mppcibrd_t brd) /* add PC compatible parallel port */ parport_pc_probe_port(pcidev->resource[2].start, pcidev->resource[3].start, PARPORT_IRQ_NONE, PARPORT_DMA_NONE, &pcidev->dev, 0); break; +#endif } ret = request_region(sbdev->uart_access_addr, (8*sbdev->nr_ports), sbdev->name); -- cgit v0.10.2 From cb7da022450cdaaebd33078b6b32fb7dd2aaf6db Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 29 Nov 2012 09:12:37 +0100 Subject: asus-laptop: Do not call HWRS on init Since commit 8871e99f89b7 ('asus-laptop: HRWS/HWRS typo'), module initialisation is very slow on the Asus UL30A. The HWRS method takes about 12 seconds to run, and subsequent initialisation also seems to be delayed. Since we don't really need the result, don't bother calling it on init. Those who are curious can still get the result through the 'infos' device attribute. Update the comment about HWRS in show_infos(). Reported-by: ryan References: http://bugs.debian.org/692436 Signed-off-by: Ben Hutchings Signed-off-by: Corentin Chary Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index ec1d3bc..d0c5197 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -860,8 +860,10 @@ static ssize_t show_infos(struct device *dev, /* * The HWRS method return informations about the hardware. * 0x80 bit is for WLAN, 0x100 for Bluetooth. + * 0x40 for WWAN, 0x10 for WIMAX. * The significance of others is yet to be found. - * If we don't find the method, we assume the device are present. + * We don't currently use this for device detection, and it + * takes several seconds to run on some systems. */ rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp); if (!ACPI_FAILURE(rv)) @@ -1682,7 +1684,7 @@ static int asus_laptop_get_info(struct asus_laptop *asus) { struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object *model = NULL; - unsigned long long bsts_result, hwrs_result; + unsigned long long bsts_result; char *string = NULL; acpi_status status; @@ -1744,17 +1746,6 @@ static int asus_laptop_get_info(struct asus_laptop *asus) if (*string) pr_notice(" %s model detected\n", string); - /* - * The HWRS method return informations about the hardware. - * 0x80 bit is for WLAN, 0x100 for Bluetooth, - * 0x40 for WWAN, 0x10 for WIMAX. - * The significance of others is yet to be found. - */ - status = - acpi_evaluate_integer(asus->handle, "HWRS", NULL, &hwrs_result); - if (!ACPI_FAILURE(status)) - pr_notice(" HWRS returned %x", (int)hwrs_result); - if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL)) asus->have_rsts = true; -- cgit v0.10.2 From f7cb13b3f27f70caacf1a0a0b4f1f9b86420ee03 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Wed, 26 Dec 2012 12:22:25 -0500 Subject: Update MAINTAINERS entry New job, new address. Signed-off-by: Matthew Garrett diff --git a/MAINTAINERS b/MAINTAINERS index 3a21fe7..3ab0949 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8526,7 +8526,7 @@ F: Documentation/x86/ F: arch/x86/ X86 PLATFORM DRIVERS -M: Matthew Garrett +M: Matthew Garrett L: platform-driver-x86@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86.git S: Maintained -- cgit v0.10.2 From 9f89748463f13c9657496b12820f09a988ce77ff Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Fri, 28 Dec 2012 10:54:42 -0500 Subject: asus-laptop: Fix potential invalid pointer dereference The 0-day build testing backend noticed that a string could be dereferenced without validation. Fix that. Signed-off-by: Matthew Garrett diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index d0c5197..fcde4e5 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -1743,7 +1743,7 @@ static int asus_laptop_get_info(struct asus_laptop *asus) return -ENOMEM; } - if (*string) + if (string) pr_notice(" %s model detected\n", string); if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL)) -- cgit v0.10.2 From 5f3b361a12e121f52fae586798a775606a3bab6b Mon Sep 17 00:00:00 2001 From: Emil Goode Date: Sat, 29 Dec 2012 16:27:17 +0100 Subject: Staging: wlan-ng: Add missing argument MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The commit c8442118 introduced a struct wireless_dev pointer as a second argument of the function pointers set_tx_power and get_tx_power. This patch adds the missing arguments for the wlan-ng driver. Sparse warnings: drivers/staging/wlan-ng/cfg80211.c:735:25: warning: incorrect type in initializer (incompatible argument 2 (different base types)) drivers/staging/wlan-ng/cfg80211.c:735:25: expected int ( *set_tx_power )( ... ) drivers/staging/wlan-ng/cfg80211.c:735:25: got int ( extern [toplevel] * )( ... ) drivers/staging/wlan-ng/cfg80211.c:736:25: warning: incorrect type in initializer (incompatible argument 2 (different base types)) drivers/staging/wlan-ng/cfg80211.c:736:25: expected int ( *get_tx_power )( ... ) drivers/staging/wlan-ng/cfg80211.c:736:25: got int ( extern [toplevel] * )( ... ) drivers/staging/wlan-ng/cfg80211.c:735:2: warning: initialization from incompatible pointer type [enabled by default] drivers/staging/wlan-ng/cfg80211.c:735:2: warning: (near initialization for ‘prism2_usb_cfg_ops.set_tx_power’) [enabled by default] drivers/staging/wlan-ng/cfg80211.c:736:2: warning: initialization from incompatible pointer type [enabled by default] drivers/staging/wlan-ng/cfg80211.c:736:2: warning: (near initialization for ‘prism2_usb_cfg_ops.get_tx_power’) [enabled by default] Signed-off-by: Emil Goode Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wlan-ng/cfg80211.c b/drivers/staging/wlan-ng/cfg80211.c index 18c06a5..1d31eab 100644 --- a/drivers/staging/wlan-ng/cfg80211.c +++ b/drivers/staging/wlan-ng/cfg80211.c @@ -638,8 +638,8 @@ int prism2_leave_ibss(struct wiphy *wiphy, struct net_device *dev) } -int prism2_set_tx_power(struct wiphy *wiphy, enum nl80211_tx_power_setting type, - int mbm) +int prism2_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, + enum nl80211_tx_power_setting type, int mbm) { struct prism2_wiphy_private *priv = wiphy_priv(wiphy); wlandevice_t *wlandev = priv->wlandev; @@ -665,7 +665,8 @@ exit: return err; } -int prism2_get_tx_power(struct wiphy *wiphy, int *dbm) +int prism2_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, + int *dbm) { struct prism2_wiphy_private *priv = wiphy_priv(wiphy); wlandevice_t *wlandev = priv->wlandev; -- cgit v0.10.2 From da849a92d3bafaf24d770e971c2c9e5c3f60b5d1 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sat, 29 Dec 2012 11:36:53 -0600 Subject: staging: r8712u: Add new device ID The ISY IWL 1000 USB WLAN stick with USB ID 050d:11f1 is a clone of the Belkin F7D1101 V1 device. Reported-by: Thomas Hartmann Signed-off-by: Larry Finger Cc: Thomas Hartmann Cc: Stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c index 6b73843..a96cd06 100644 --- a/drivers/staging/rtl8712/usb_intf.c +++ b/drivers/staging/rtl8712/usb_intf.c @@ -63,6 +63,8 @@ static struct usb_device_id rtl871x_usb_id_tbl[] = { {USB_DEVICE(0x0B05, 0x1791)}, /* 11n mode disable */ /* Belkin */ {USB_DEVICE(0x050D, 0x945A)}, + /* ISY IWL - Belkin clone */ + {USB_DEVICE(0x050D, 0x11F1)}, /* Corega */ {USB_DEVICE(0x07AA, 0x0047)}, /* D-Link */ -- cgit v0.10.2 From e6028db0146cf5a68dbd1508225ea49840997880 Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Sat, 22 Dec 2012 01:44:16 +0400 Subject: mei: fix mismatch in mutex unlock-lock in mei_amthif_read() Users of mei_amthif_read() expect it leaves dev->device_lock held, while there is a path where mei_amthif_read() unlocks device_lock and returns -ERESTARTSYS. The patch move code locking device_lock back before the return. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Cc: Sedat Dilek Acked-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c index 18794ae..e40ffd9 100644 --- a/drivers/misc/mei/amthif.c +++ b/drivers/misc/mei/amthif.c @@ -187,13 +187,13 @@ int mei_amthif_read(struct mei_device *dev, struct file *file, wait_ret = wait_event_interruptible(dev->iamthif_cl.wait, (cb = mei_amthif_find_read_list_entry(dev, file))); + /* Locking again the Mutex */ + mutex_lock(&dev->device_lock); + if (wait_ret) return -ERESTARTSYS; dev_dbg(&dev->pdev->dev, "woke up from sleep\n"); - - /* Locking again the Mutex */ - mutex_lock(&dev->device_lock); } -- cgit v0.10.2 From 2cb5000057fbd2237c19b8b8bd4f6948fd11f5f8 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 2 Jan 2013 13:58:18 -0500 Subject: USB: usbtest: fix test number in log message This patch (as1639) fixes a minor bug in the usbtest driver. Due to concurrent changes, a test originally written as number 17 got changed to number 24, but the corresponding change was not made in the log message. This updates the log message. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 7667b12..268148d 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -2179,7 +2179,7 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) if (dev->out_pipe == 0 || !param->length || param->sglen < 4) break; retval = 0; - dev_info(&intf->dev, "TEST 17: unlink from %d queues of " + dev_info(&intf->dev, "TEST 24: unlink from %d queues of " "%d %d-byte writes\n", param->iterations, param->sglen, param->length); for (i = param->iterations; retval == 0 && i > 0; --i) { -- cgit v0.10.2 From 75e1a2ae1f61ce1ae640410ba757bba84bd9fefe Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 19 Dec 2012 16:15:56 +0000 Subject: USB: ehci: make debug port in-use detection functional again Debug port in-use determination must be done before the controller gets reset the first time, i.e. before the call to ehci_setup() as of commit 1a49e2ac9651df7349867a5cf44e2c83de1046af. That commit effectively rendered commit 9fa5780beea1274d498a224822397100022da7d4 useless. While moving that code around, also fix the BAR determination - the respective capability field is a 3- rather than a 2-bit one -, and use PCI_CAP_ID_DBG instead of the literal 0x0a. It's unclear to me whether the debug port functionality is important enough to warrant fixing this in stable kernels too. Signed-off-by: Jan Beulich Cc: Konrad Rzeszutek Wilk Cc: stable Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index dabb204..170b939 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -200,6 +200,26 @@ static int ehci_pci_setup(struct usb_hcd *hcd) break; } + /* optional debug port, normally in the first BAR */ + temp = pci_find_capability(pdev, PCI_CAP_ID_DBG); + if (temp) { + pci_read_config_dword(pdev, temp, &temp); + temp >>= 16; + if (((temp >> 13) & 7) == 1) { + u32 hcs_params = ehci_readl(ehci, + &ehci->caps->hcs_params); + + temp &= 0x1fff; + ehci->debug = hcd->regs + temp; + temp = ehci_readl(ehci, &ehci->debug->control); + ehci_info(ehci, "debug port %d%s\n", + HCS_DEBUG_PORT(hcs_params), + (temp & DBGP_ENABLED) ? " IN USE" : ""); + if (!(temp & DBGP_ENABLED)) + ehci->debug = NULL; + } + } + retval = ehci_setup(hcd); if (retval) return retval; @@ -228,25 +248,6 @@ static int ehci_pci_setup(struct usb_hcd *hcd) break; } - /* optional debug port, normally in the first BAR */ - temp = pci_find_capability(pdev, 0x0a); - if (temp) { - pci_read_config_dword(pdev, temp, &temp); - temp >>= 16; - if ((temp & (3 << 13)) == (1 << 13)) { - temp &= 0x1fff; - ehci->debug = hcd->regs + temp; - temp = ehci_readl(ehci, &ehci->debug->control); - ehci_info(ehci, "debug port %d%s\n", - HCS_DEBUG_PORT(ehci->hcs_params), - (temp & DBGP_ENABLED) - ? " IN USE" - : ""); - if (!(temp & DBGP_ENABLED)) - ehci->debug = NULL; - } - } - /* at least the Genesys GL880S needs fixup here */ temp = HCS_N_CC(ehci->hcs_params) * HCS_N_PCC(ehci->hcs_params); temp &= 0x0f; -- cgit v0.10.2 From a76fefab5c82d0f51c1330e275476b2066fe7d73 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 7 Jan 2013 19:03:17 +0000 Subject: ASoC: wm_adsp: Ensure that block writes are from DMA aligned addresses Otherwise we won't run correctly on systems that require this for larger data transfers. Signed-off-by: Mark Brown diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index ffc89fa..7b198c3 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -169,6 +169,7 @@ static int wm_adsp_load(struct wm_adsp *dsp) const struct wm_adsp_region *mem; const char *region_name; char *file, *text; + void *buf; unsigned int reg; int regions = 0; int ret, offset, type, sizes; @@ -322,8 +323,18 @@ static int wm_adsp_load(struct wm_adsp *dsp) } if (reg) { - ret = regmap_raw_write(regmap, reg, region->data, + buf = kmemdup(region->data, le32_to_cpu(region->len), + GFP_KERNEL); + if (!buf) { + adsp_err(dsp, "Out of memory\n"); + return -ENOMEM; + } + + ret = regmap_raw_write(regmap, reg, buf, le32_to_cpu(region->len)); + + kfree(buf); + if (ret != 0) { adsp_err(dsp, "%s.%d: Failed to write %d bytes at %d in %s: %d\n", @@ -359,6 +370,7 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp) const char *region_name; int ret, pos, blocks, type, offset, reg; char *file; + void *buf; file = kzalloc(PAGE_SIZE, GFP_KERNEL); if (file == NULL) @@ -426,6 +438,13 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp) } if (reg) { + buf = kmemdup(blk->data, le32_to_cpu(blk->len), + GFP_KERNEL); + if (!buf) { + adsp_err(dsp, "Out of memory\n"); + return -ENOMEM; + } + ret = regmap_raw_write(regmap, reg, blk->data, le32_to_cpu(blk->len)); if (ret != 0) { @@ -433,6 +452,8 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp) "%s.%d: Failed to write to %x in %s\n", file, blocks, reg, region_name); } + + kfree(buf); } pos += le32_to_cpu(blk->len) + sizeof(*blk); -- cgit v0.10.2 From 9929362348096bd9396c523338127fc9b7487c42 Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Wed, 28 Nov 2012 14:51:22 -0500 Subject: staging/fwserial: Refine Kconfig help text Users should be informed upfront that this is a Linux-only affair currently. Signed-off-by: Peter Hurley Acked-by: Stefan Richter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fwserial/Kconfig b/drivers/staging/fwserial/Kconfig index 580406c..b2f8331 100644 --- a/drivers/staging/fwserial/Kconfig +++ b/drivers/staging/fwserial/Kconfig @@ -3,7 +3,9 @@ config FIREWIRE_SERIAL depends on FIREWIRE help This enables TTY over IEEE 1394, providing high-speed serial - connectivity to cabled peers. + connectivity to cabled peers. This driver implements a + ad-hoc transport protocol and is currently limited to + Linux-to-Linux communication. To compile this driver as a module, say M here: the module will be called firewire-serial. -- cgit v0.10.2 From 0555cb987ae76b53dc19e33c308e747b43622741 Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Wed, 28 Nov 2012 14:51:23 -0500 Subject: staging/fwserial: Limit tx/rx to 1394-2008 spec maximum Per this conversation https://lkml.org/lkml/2012/11/27/587 limit the maximum transmission to the IEEE 1394-2008 specification maximum size of 4096 bytes for asynchronous packets. Signed-off-by: Peter Hurley Acked-by: Stefan Richter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fwserial/TODO b/drivers/staging/fwserial/TODO index 7269005..ffe47d1 100644 --- a/drivers/staging/fwserial/TODO +++ b/drivers/staging/fwserial/TODO @@ -12,9 +12,6 @@ TODOs 1. This driver uses the same unregistered vendor id that the firewire core does (0xd00d1e). Perhaps this could be exposed as a define in firewire-constants.h? -2. MAX_ASYNC_PAYLOAD needs to be publicly exposed by core/ohci - - otherwise how will this driver know the max size of address window to - open for one packet write? 3. Maybe device_max_receive() and link_speed_to_max_payload() should be taken up by the firewire core? 4. To avoid dropping rx data while still limiting the maximum buffering, diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c index 61ee290..d03a7f5 100644 --- a/drivers/staging/fwserial/fwserial.c +++ b/drivers/staging/fwserial/fwserial.c @@ -179,7 +179,7 @@ static void dump_profile(struct seq_file *m, struct stats *stats) /* Returns the max receive packet size for the given card */ static inline int device_max_receive(struct fw_device *fw_device) { - return 1 << (clamp_t(int, fw_device->max_rec, 8U, 13U) + 1); + return 1 << (clamp_t(int, fw_device->max_rec, 8U, 11U) + 1); } static void fwtty_log_tx_error(struct fwtty_port *port, int rcode) diff --git a/drivers/staging/fwserial/fwserial.h b/drivers/staging/fwserial/fwserial.h index 8b572ed..caa1c1e 100644 --- a/drivers/staging/fwserial/fwserial.h +++ b/drivers/staging/fwserial/fwserial.h @@ -374,10 +374,10 @@ static inline void fwtty_bind_console(struct fwtty_port *port, */ static inline int link_speed_to_max_payload(unsigned speed) { - static const int max_async[] = { 307, 614, 1229, 2458, 4916, 9832, }; - BUILD_BUG_ON(ARRAY_SIZE(max_async) - 1 != SCODE_3200); + static const int max_async[] = { 307, 614, 1229, 2458, }; + BUILD_BUG_ON(ARRAY_SIZE(max_async) - 1 != SCODE_800); - speed = clamp(speed, (unsigned) SCODE_100, (unsigned) SCODE_3200); + speed = clamp(speed, (unsigned) SCODE_100, (unsigned) SCODE_800); if (limit_bw) return max_async[speed]; else -- cgit v0.10.2 From 3c8c21e63a44de815e924b1605ee8351c5703d0b Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Wed, 28 Nov 2012 14:51:24 -0500 Subject: staging/fwserial: Update TODO file per reviewer comments Pursuant to this review https://lkml.org/lkml/2012/11/12/500 by Stefan Richter, update the TODO file. - Clarify purpose of TODO file - Remove firewire item #4. As discussed in this conversation https://lkml.org/lkml/2012/11/13/564 knowing the AR buffer size is not a hard requirement. The required rx buffer size can be determined experimentally. - Remove firewire item #5. This was a private note for further experimentation. - Change firewire item #1. Change suggested header from uapi header to kernel-only header. Signed-off-by: Peter Hurley Acked-by: Stefan Richter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fwserial/TODO b/drivers/staging/fwserial/TODO index ffe47d1..8dae8fb 100644 --- a/drivers/staging/fwserial/TODO +++ b/drivers/staging/fwserial/TODO @@ -1,5 +1,5 @@ -TODOs ------ +TODOs prior to this driver moving out of staging +------------------------------------------------ 1. Implement retries for RCODE_BUSY, RCODE_NO_ACK and RCODE_SEND_ERROR - I/O is handled asynchronously which presents some issues when error conditions occur. @@ -11,14 +11,9 @@ TODOs -- Issues with firewire stack -- 1. This driver uses the same unregistered vendor id that the firewire core does (0xd00d1e). Perhaps this could be exposed as a define in - firewire-constants.h? + firewire.h? 3. Maybe device_max_receive() and link_speed_to_max_payload() should be taken up by the firewire core? -4. To avoid dropping rx data while still limiting the maximum buffering, - the size of the AR context must be known. How to expose this to drivers? -5. Explore if bigger AR context will reduce RCODE_BUSY responses - (or auto-grow to certain max size -- but this would require major surgery - as the current AR is contiguously mapped) -- Issues with TTY core -- 1. Hack for alternate device name scheme -- cgit v0.10.2 From 111b72a2f09e1958a6078a8b1c3feded6a3b450e Mon Sep 17 00:00:00 2001 From: Julian Wollrath Date: Wed, 2 Jan 2013 15:21:56 +0100 Subject: rtlwifi: Fix typo in debug output of rtl8192c and rtl8723ae Signed-off-by: Julian Wollrath Acked-by: Larry Finger Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c index 1d5d360..246e535 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c +++ b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c @@ -692,7 +692,7 @@ u8 rtl92c_phy_sw_chnl(struct ieee80211_hw *hw) if (!(is_hal_stop(rtlhal)) && !(RT_CANNOT_IO(hw))) { rtl92c_phy_sw_chnl_callback(hw); RT_TRACE(rtlpriv, COMP_CHAN, DBG_LOUD, - "sw_chnl_inprogress false schdule workitem\n"); + "sw_chnl_inprogress false schedule workitem\n"); rtlphy->sw_chnl_inprogress = false; } else { RT_TRACE(rtlpriv, COMP_CHAN, DBG_LOUD, diff --git a/drivers/net/wireless/rtlwifi/rtl8723ae/phy.c b/drivers/net/wireless/rtlwifi/rtl8723ae/phy.c index 39cc793..3d8536b 100644 --- a/drivers/net/wireless/rtlwifi/rtl8723ae/phy.c +++ b/drivers/net/wireless/rtlwifi/rtl8723ae/phy.c @@ -1106,7 +1106,7 @@ u8 rtl8723ae_phy_sw_chnl(struct ieee80211_hw *hw) if (!(is_hal_stop(rtlhal)) && !(RT_CANNOT_IO(hw))) { rtl8723ae_phy_sw_chnl_callback(hw); RT_TRACE(rtlpriv, COMP_CHAN, DBG_LOUD, - "sw_chnl_inprogress false schdule workitem\n"); + "sw_chnl_inprogress false schedule workitem\n"); rtlphy->sw_chnl_inprogress = false; } else { RT_TRACE(rtlpriv, COMP_CHAN, DBG_LOUD, -- cgit v0.10.2 From c4f74d35cac7cbc44877313b69550e2f5aeae77d Mon Sep 17 00:00:00 2001 From: Nickolai Zeldovich Date: Sun, 6 Jan 2013 20:27:22 -0500 Subject: drivers/net/wireless/mwl8k.c: avoid use-after-free Do not dereference p->station_id after kfree(cmd) because p points into the cmd data structure. Signed-off-by: Nickolai Zeldovich Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index f221b95..83564d3 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -4250,9 +4250,11 @@ static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw, p->amsdu_enabled = 0; rc = mwl8k_post_cmd(hw, &cmd->header); + if (!rc) + rc = p->station_id; kfree(cmd); - return rc ? rc : p->station_id; + return rc; } static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw *hw, -- cgit v0.10.2 From 407ee23725bba0f273963bb744fea6cb3cf78bf4 Mon Sep 17 00:00:00 2001 From: Chen Gang Date: Mon, 7 Jan 2013 12:42:46 +0800 Subject: drivers/net/wireless/iwlegacy: use strlcpy instead of strncpy The fields must be null-terminated, or simple_strtoul will cause issue. Signed-off-by: Chen Gang Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c index d604b40..3726cd6 100644 --- a/drivers/net/wireless/iwlegacy/3945-mac.c +++ b/drivers/net/wireless/iwlegacy/3945-mac.c @@ -3273,7 +3273,7 @@ il3945_store_measurement(struct device *d, struct device_attribute *attr, if (count) { char *p = buffer; - strncpy(buffer, buf, min(sizeof(buffer), count)); + strlcpy(buffer, buf, sizeof(buffer)); channel = simple_strtoul(p, NULL, 0); if (channel) params.channel = channel; -- cgit v0.10.2 From 5e20a4b53094651d80f856ff55a916b999dbb57a Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Thu, 20 Dec 2012 15:55:01 -0600 Subject: b43: Fix firmware loading when driver is built into the kernel Recent versions of udev cause synchronous firmware loading from the probe routine to fail because the request to user space would time out. The original fix for b43 (commit 6b6fa58) moved the firmware load from the probe routine to a work queue, but it still used synchronous firmware loading. This method is OK when b43 is built as a module; however, it fails when the driver is compiled into the kernel. This version changes the code to load the initial firmware file using request_firmware_nowait(). A completion event is used to hold the work queue until that file is available. This driver reads several firmware files - the remainder can be read synchronously. On some test systems, the async read fails; however, a following synch read works, thus the async failure falls through to the sync try. Reported-and-Tested by: Felix Janda Signed-off-by: Larry Finger Cc: Stable (V3.4+) Signed-off-by: John W. Linville diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index b298e5d..10e288d 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -7,6 +7,7 @@ #include #include #include +#include #include #include "debugfs.h" @@ -722,6 +723,10 @@ enum b43_firmware_file_type { struct b43_request_fw_context { /* The device we are requesting the fw for. */ struct b43_wldev *dev; + /* a completion event structure needed if this call is asynchronous */ + struct completion fw_load_complete; + /* a pointer to the firmware object */ + const struct firmware *blob; /* The type of firmware to request. */ enum b43_firmware_file_type req_type; /* Error messages for each firmware type. */ diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 16ab280..806e34c 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -2088,11 +2088,18 @@ static void b43_print_fw_helptext(struct b43_wl *wl, bool error) b43warn(wl, text); } +static void b43_fw_cb(const struct firmware *firmware, void *context) +{ + struct b43_request_fw_context *ctx = context; + + ctx->blob = firmware; + complete(&ctx->fw_load_complete); +} + int b43_do_request_fw(struct b43_request_fw_context *ctx, const char *name, - struct b43_firmware_file *fw) + struct b43_firmware_file *fw, bool async) { - const struct firmware *blob; struct b43_fw_header *hdr; u32 size; int err; @@ -2131,11 +2138,31 @@ int b43_do_request_fw(struct b43_request_fw_context *ctx, B43_WARN_ON(1); return -ENOSYS; } - err = request_firmware(&blob, ctx->fwname, ctx->dev->dev->dev); + if (async) { + /* do this part asynchronously */ + init_completion(&ctx->fw_load_complete); + err = request_firmware_nowait(THIS_MODULE, 1, ctx->fwname, + ctx->dev->dev->dev, GFP_KERNEL, + ctx, b43_fw_cb); + if (err < 0) { + pr_err("Unable to load firmware\n"); + return err; + } + /* stall here until fw ready */ + wait_for_completion(&ctx->fw_load_complete); + if (ctx->blob) + goto fw_ready; + /* On some ARM systems, the async request will fail, but the next sync + * request works. For this reason, we dall through here + */ + } + err = request_firmware(&ctx->blob, ctx->fwname, + ctx->dev->dev->dev); if (err == -ENOENT) { snprintf(ctx->errors[ctx->req_type], sizeof(ctx->errors[ctx->req_type]), - "Firmware file \"%s\" not found\n", ctx->fwname); + "Firmware file \"%s\" not found\n", + ctx->fwname); return err; } else if (err) { snprintf(ctx->errors[ctx->req_type], @@ -2144,14 +2171,15 @@ int b43_do_request_fw(struct b43_request_fw_context *ctx, ctx->fwname, err); return err; } - if (blob->size < sizeof(struct b43_fw_header)) +fw_ready: + if (ctx->blob->size < sizeof(struct b43_fw_header)) goto err_format; - hdr = (struct b43_fw_header *)(blob->data); + hdr = (struct b43_fw_header *)(ctx->blob->data); switch (hdr->type) { case B43_FW_TYPE_UCODE: case B43_FW_TYPE_PCM: size = be32_to_cpu(hdr->size); - if (size != blob->size - sizeof(struct b43_fw_header)) + if (size != ctx->blob->size - sizeof(struct b43_fw_header)) goto err_format; /* fallthrough */ case B43_FW_TYPE_IV: @@ -2162,7 +2190,7 @@ int b43_do_request_fw(struct b43_request_fw_context *ctx, goto err_format; } - fw->data = blob; + fw->data = ctx->blob; fw->filename = name; fw->type = ctx->req_type; @@ -2172,7 +2200,7 @@ err_format: snprintf(ctx->errors[ctx->req_type], sizeof(ctx->errors[ctx->req_type]), "Firmware file \"%s\" format error.\n", ctx->fwname); - release_firmware(blob); + release_firmware(ctx->blob); return -EPROTO; } @@ -2223,7 +2251,7 @@ static int b43_try_request_fw(struct b43_request_fw_context *ctx) goto err_no_ucode; } } - err = b43_do_request_fw(ctx, filename, &fw->ucode); + err = b43_do_request_fw(ctx, filename, &fw->ucode, true); if (err) goto err_load; @@ -2235,7 +2263,7 @@ static int b43_try_request_fw(struct b43_request_fw_context *ctx) else goto err_no_pcm; fw->pcm_request_failed = false; - err = b43_do_request_fw(ctx, filename, &fw->pcm); + err = b43_do_request_fw(ctx, filename, &fw->pcm, false); if (err == -ENOENT) { /* We did not find a PCM file? Not fatal, but * core rev <= 10 must do without hwcrypto then. */ @@ -2296,7 +2324,7 @@ static int b43_try_request_fw(struct b43_request_fw_context *ctx) default: goto err_no_initvals; } - err = b43_do_request_fw(ctx, filename, &fw->initvals); + err = b43_do_request_fw(ctx, filename, &fw->initvals, false); if (err) goto err_load; @@ -2355,7 +2383,7 @@ static int b43_try_request_fw(struct b43_request_fw_context *ctx) default: goto err_no_initvals; } - err = b43_do_request_fw(ctx, filename, &fw->initvals_band); + err = b43_do_request_fw(ctx, filename, &fw->initvals_band, false); if (err) goto err_load; diff --git a/drivers/net/wireless/b43/main.h b/drivers/net/wireless/b43/main.h index 8c684cd..abac25e 100644 --- a/drivers/net/wireless/b43/main.h +++ b/drivers/net/wireless/b43/main.h @@ -137,9 +137,8 @@ void b43_mac_phy_clock_set(struct b43_wldev *dev, bool on); struct b43_request_fw_context; -int b43_do_request_fw(struct b43_request_fw_context *ctx, - const char *name, - struct b43_firmware_file *fw); +int b43_do_request_fw(struct b43_request_fw_context *ctx, const char *name, + struct b43_firmware_file *fw, bool async); void b43_do_release_fw(struct b43_firmware_file *fw); #endif /* B43_MAIN_H_ */ -- cgit v0.10.2 From f5f9454c2145fa018c9808597739abce67114ac7 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Tue, 4 Dec 2012 13:59:12 -0600 Subject: staging: drm/omap: use omapdss low level API This patch changes the omapdrm KMS to bypass the omapdss "compat" layer and use the core omapdss API directly. This solves some layering issues that would cause unpin confusion vs GO bit status, because we would not know whether a particular pageflip or overlay update has hit the screen or not. Now instead we explicitly manage the GO bits in dispc and handle the vblank/framedone interrupts ourself so that we always know which buffers are being scanned out at any given time, and so on. As an added bonus, we no longer leave the last overlay buffer pinned when the display is disabled, and have been able to add the previously missing vblank event handling. v1: original v2: rebased on latest staging-next and omapdss patches from Tomi and review comments from Archit Taneja Signed-off-by: Rob Clark Reviewed-by: Archit Taneja Reviewed-by: Sumit Semwal Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/omapdrm/Makefile b/drivers/staging/omapdrm/Makefile index 1ca0e00..d85e058 100644 --- a/drivers/staging/omapdrm/Makefile +++ b/drivers/staging/omapdrm/Makefile @@ -5,6 +5,7 @@ ccflags-y := -Iinclude/drm -Werror omapdrm-y := omap_drv.o \ + omap_irq.o \ omap_debugfs.o \ omap_crtc.o \ omap_plane.o \ diff --git a/drivers/staging/omapdrm/TODO b/drivers/staging/omapdrm/TODO index 938c788..abeeb00 100644 --- a/drivers/staging/omapdrm/TODO +++ b/drivers/staging/omapdrm/TODO @@ -17,9 +17,6 @@ TODO . Revisit GEM sync object infrastructure.. TTM has some framework for this already. Possibly this could be refactored out and made more common? There should be some way to do this with less wheel-reinvention. -. Review DSS vs KMS mismatches. The omap_dss_device is sort of part encoder, - part connector. Which results in a bit of duct tape to fwd calls from - encoder to connector. Possibly this could be done a bit better. . Solve PM sequencing on resume. DMM/TILER must be reloaded before any access is made from any component in the system. Which means on suspend CRTC's should be disabled, and on resume the LUT should be reprogrammed diff --git a/drivers/staging/omapdrm/omap_connector.c b/drivers/staging/omapdrm/omap_connector.c index 91edb3f..4cc9ee7 100644 --- a/drivers/staging/omapdrm/omap_connector.c +++ b/drivers/staging/omapdrm/omap_connector.c @@ -31,9 +31,10 @@ struct omap_connector { struct drm_connector base; struct omap_dss_device *dssdev; + struct drm_encoder *encoder; }; -static inline void copy_timings_omap_to_drm(struct drm_display_mode *mode, +void copy_timings_omap_to_drm(struct drm_display_mode *mode, struct omap_video_timings *timings) { mode->clock = timings->pixel_clock; @@ -64,7 +65,7 @@ static inline void copy_timings_omap_to_drm(struct drm_display_mode *mode, mode->flags |= DRM_MODE_FLAG_NVSYNC; } -static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, +void copy_timings_drm_to_omap(struct omap_video_timings *timings, struct drm_display_mode *mode) { timings->pixel_clock = mode->clock; @@ -96,48 +97,7 @@ static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings, timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES; } -static void omap_connector_dpms(struct drm_connector *connector, int mode) -{ - struct omap_connector *omap_connector = to_omap_connector(connector); - struct omap_dss_device *dssdev = omap_connector->dssdev; - int old_dpms; - - DBG("%s: %d", dssdev->name, mode); - - old_dpms = connector->dpms; - - /* from off to on, do from crtc to connector */ - if (mode < old_dpms) - drm_helper_connector_dpms(connector, mode); - - if (mode == DRM_MODE_DPMS_ON) { - /* store resume info for suspended displays */ - switch (dssdev->state) { - case OMAP_DSS_DISPLAY_SUSPENDED: - dssdev->activate_after_resume = true; - break; - case OMAP_DSS_DISPLAY_DISABLED: { - int ret = dssdev->driver->enable(dssdev); - if (ret) { - DBG("%s: failed to enable: %d", - dssdev->name, ret); - dssdev->driver->disable(dssdev); - } - break; - } - default: - break; - } - } else { - /* TODO */ - } - - /* from on to off, do from connector to crtc */ - if (mode > old_dpms) - drm_helper_connector_dpms(connector, mode); -} - -enum drm_connector_status omap_connector_detect( +static enum drm_connector_status omap_connector_detect( struct drm_connector *connector, bool force) { struct omap_connector *omap_connector = to_omap_connector(connector); @@ -164,8 +124,6 @@ static void omap_connector_destroy(struct drm_connector *connector) struct omap_connector *omap_connector = to_omap_connector(connector); struct omap_dss_device *dssdev = omap_connector->dssdev; - dssdev->driver->disable(dssdev); - DBG("%s", omap_connector->dssdev->name); drm_sysfs_connector_remove(connector); drm_connector_cleanup(connector); @@ -261,36 +219,12 @@ static int omap_connector_mode_valid(struct drm_connector *connector, struct drm_encoder *omap_connector_attached_encoder( struct drm_connector *connector) { - int i; struct omap_connector *omap_connector = to_omap_connector(connector); - - for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { - struct drm_mode_object *obj; - - if (connector->encoder_ids[i] == 0) - break; - - obj = drm_mode_object_find(connector->dev, - connector->encoder_ids[i], - DRM_MODE_OBJECT_ENCODER); - - if (obj) { - struct drm_encoder *encoder = obj_to_encoder(obj); - struct omap_overlay_manager *mgr = - omap_encoder_get_manager(encoder); - DBG("%s: found %s", omap_connector->dssdev->name, - mgr->name); - return encoder; - } - } - - DBG("%s: no encoder", omap_connector->dssdev->name); - - return NULL; + return omap_connector->encoder; } static const struct drm_connector_funcs omap_connector_funcs = { - .dpms = omap_connector_dpms, + .dpms = drm_helper_connector_dpms, .detect = omap_connector_detect, .fill_modes = drm_helper_probe_single_connector_modes, .destroy = omap_connector_destroy, @@ -302,34 +236,6 @@ static const struct drm_connector_helper_funcs omap_connector_helper_funcs = { .best_encoder = omap_connector_attached_encoder, }; -/* called from encoder when mode is set, to propagate settings to the dssdev */ -void omap_connector_mode_set(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - struct drm_device *dev = connector->dev; - struct omap_connector *omap_connector = to_omap_connector(connector); - struct omap_dss_device *dssdev = omap_connector->dssdev; - struct omap_dss_driver *dssdrv = dssdev->driver; - struct omap_video_timings timings = {0}; - - copy_timings_drm_to_omap(&timings, mode); - - DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x", - omap_connector->dssdev->name, - mode->base.id, mode->name, mode->vrefresh, mode->clock, - mode->hdisplay, mode->hsync_start, - mode->hsync_end, mode->htotal, - mode->vdisplay, mode->vsync_start, - mode->vsync_end, mode->vtotal, mode->type, mode->flags); - - if (dssdrv->check_timings(dssdev, &timings)) { - dev_err(dev->dev, "could not set timings\n"); - return; - } - - dssdrv->set_timings(dssdev, &timings); -} - /* flush an area of the framebuffer (in case of manual update display that * is not automatically flushed) */ @@ -344,7 +250,8 @@ void omap_connector_flush(struct drm_connector *connector, /* initialize connector */ struct drm_connector *omap_connector_init(struct drm_device *dev, - int connector_type, struct omap_dss_device *dssdev) + int connector_type, struct omap_dss_device *dssdev, + struct drm_encoder *encoder) { struct drm_connector *connector = NULL; struct omap_connector *omap_connector; @@ -360,6 +267,8 @@ struct drm_connector *omap_connector_init(struct drm_device *dev, } omap_connector->dssdev = dssdev; + omap_connector->encoder = encoder; + connector = &omap_connector->base; drm_connector_init(dev, connector, &omap_connector_funcs, diff --git a/drivers/staging/omapdrm/omap_crtc.c b/drivers/staging/omapdrm/omap_crtc.c index d87bd84..5c6ed60 100644 --- a/drivers/staging/omapdrm/omap_crtc.c +++ b/drivers/staging/omapdrm/omap_crtc.c @@ -28,19 +28,131 @@ struct omap_crtc { struct drm_crtc base; struct drm_plane *plane; + const char *name; - int id; + int pipe; + enum omap_channel channel; + struct omap_overlay_manager_info info; + + /* + * Temporary: eventually this will go away, but it is needed + * for now to keep the output's happy. (They only need + * mgr->id.) Eventually this will be replaced w/ something + * more common-panel-framework-y + */ + struct omap_overlay_manager mgr; + + struct omap_video_timings timings; + bool enabled; + bool full_update; + + struct omap_drm_apply apply; + + struct omap_drm_irq apply_irq; + struct omap_drm_irq error_irq; + + /* list of in-progress apply's: */ + struct list_head pending_applies; + + /* list of queued apply's: */ + struct list_head queued_applies; + + /* for handling queued and in-progress applies: */ + struct work_struct apply_work; /* if there is a pending flip, these will be non-null: */ struct drm_pending_vblank_event *event; struct drm_framebuffer *old_fb; + + /* for handling page flips without caring about what + * the callback is called from. Possibly we should just + * make omap_gem always call the cb from the worker so + * we don't have to care about this.. + * + * XXX maybe fold into apply_work?? + */ + struct work_struct page_flip_work; +}; + +/* + * Manager-ops, callbacks from output when they need to configure + * the upstream part of the video pipe. + * + * Most of these we can ignore until we add support for command-mode + * panels.. for video-mode the crtc-helpers already do an adequate + * job of sequencing the setup of the video pipe in the proper order + */ + +/* we can probably ignore these until we support command-mode panels: */ +static void omap_crtc_start_update(struct omap_overlay_manager *mgr) +{ +} + +static int omap_crtc_enable(struct omap_overlay_manager *mgr) +{ + return 0; +} + +static void omap_crtc_disable(struct omap_overlay_manager *mgr) +{ +} + +static void omap_crtc_set_timings(struct omap_overlay_manager *mgr, + const struct omap_video_timings *timings) +{ + struct omap_crtc *omap_crtc = container_of(mgr, struct omap_crtc, mgr); + DBG("%s", omap_crtc->name); + omap_crtc->timings = *timings; + omap_crtc->full_update = true; +} + +static void omap_crtc_set_lcd_config(struct omap_overlay_manager *mgr, + const struct dss_lcd_mgr_config *config) +{ + struct omap_crtc *omap_crtc = container_of(mgr, struct omap_crtc, mgr); + DBG("%s", omap_crtc->name); + dispc_mgr_set_lcd_config(omap_crtc->channel, config); +} + +static int omap_crtc_register_framedone_handler( + struct omap_overlay_manager *mgr, + void (*handler)(void *), void *data) +{ + return 0; +} + +static void omap_crtc_unregister_framedone_handler( + struct omap_overlay_manager *mgr, + void (*handler)(void *), void *data) +{ +} + +static const struct dss_mgr_ops mgr_ops = { + .start_update = omap_crtc_start_update, + .enable = omap_crtc_enable, + .disable = omap_crtc_disable, + .set_timings = omap_crtc_set_timings, + .set_lcd_config = omap_crtc_set_lcd_config, + .register_framedone_handler = omap_crtc_register_framedone_handler, + .unregister_framedone_handler = omap_crtc_unregister_framedone_handler, }; +/* + * CRTC funcs: + */ + static void omap_crtc_destroy(struct drm_crtc *crtc) { struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + + DBG("%s", omap_crtc->name); + + WARN_ON(omap_crtc->apply_irq.registered); + omap_irq_unregister(crtc->dev, &omap_crtc->error_irq); + omap_crtc->plane->funcs->destroy(omap_crtc->plane); drm_crtc_cleanup(crtc); + kfree(omap_crtc); } @@ -48,14 +160,25 @@ static void omap_crtc_dpms(struct drm_crtc *crtc, int mode) { struct omap_drm_private *priv = crtc->dev->dev_private; struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + bool enabled = (mode == DRM_MODE_DPMS_ON); int i; - WARN_ON(omap_plane_dpms(omap_crtc->plane, mode)); + DBG("%s: %d", omap_crtc->name, mode); + + if (enabled != omap_crtc->enabled) { + omap_crtc->enabled = enabled; + omap_crtc->full_update = true; + omap_crtc_apply(crtc, &omap_crtc->apply); - for (i = 0; i < priv->num_planes; i++) { - struct drm_plane *plane = priv->planes[i]; - if (plane->crtc == crtc) - WARN_ON(omap_plane_dpms(plane, mode)); + /* also enable our private plane: */ + WARN_ON(omap_plane_dpms(omap_crtc->plane, mode)); + + /* and any attached overlay planes: */ + for (i = 0; i < priv->num_planes; i++) { + struct drm_plane *plane = priv->planes[i]; + if (plane->crtc == crtc) + WARN_ON(omap_plane_dpms(plane, mode)); + } } } @@ -73,12 +196,26 @@ static int omap_crtc_mode_set(struct drm_crtc *crtc, struct drm_framebuffer *old_fb) { struct omap_crtc *omap_crtc = to_omap_crtc(crtc); - struct drm_plane *plane = omap_crtc->plane; - return omap_plane_mode_set(plane, crtc, crtc->fb, + mode = adjusted_mode; + + DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x", + omap_crtc->name, mode->base.id, mode->name, + mode->vrefresh, mode->clock, + mode->hdisplay, mode->hsync_start, + mode->hsync_end, mode->htotal, + mode->vdisplay, mode->vsync_start, + mode->vsync_end, mode->vtotal, + mode->type, mode->flags); + + copy_timings_drm_to_omap(&omap_crtc->timings, mode); + omap_crtc->full_update = true; + + return omap_plane_mode_set(omap_crtc->plane, crtc, crtc->fb, 0, 0, mode->hdisplay, mode->vdisplay, x << 16, y << 16, - mode->hdisplay << 16, mode->vdisplay << 16); + mode->hdisplay << 16, mode->vdisplay << 16, + NULL, NULL); } static void omap_crtc_prepare(struct drm_crtc *crtc) @@ -102,10 +239,11 @@ static int omap_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, struct drm_plane *plane = omap_crtc->plane; struct drm_display_mode *mode = &crtc->mode; - return plane->funcs->update_plane(plane, crtc, crtc->fb, + return omap_plane_mode_set(plane, crtc, crtc->fb, 0, 0, mode->hdisplay, mode->vdisplay, x << 16, y << 16, - mode->hdisplay << 16, mode->vdisplay << 16); + mode->hdisplay << 16, mode->vdisplay << 16, + NULL, NULL); } static void omap_crtc_load_lut(struct drm_crtc *crtc) @@ -114,63 +252,54 @@ static void omap_crtc_load_lut(struct drm_crtc *crtc) static void vblank_cb(void *arg) { - static uint32_t sequence; struct drm_crtc *crtc = arg; struct drm_device *dev = crtc->dev; struct omap_crtc *omap_crtc = to_omap_crtc(crtc); - struct drm_pending_vblank_event *event = omap_crtc->event; unsigned long flags; - struct timeval now; - WARN_ON(!event); + spin_lock_irqsave(&dev->event_lock, flags); + + /* wakeup userspace */ + if (omap_crtc->event) + drm_send_vblank_event(dev, omap_crtc->pipe, omap_crtc->event); omap_crtc->event = NULL; + omap_crtc->old_fb = NULL; - /* wakeup userspace */ - if (event) { - do_gettimeofday(&now); - - spin_lock_irqsave(&dev->event_lock, flags); - /* TODO: we can't yet use the vblank time accounting, - * because omapdss lower layer is the one that knows - * the irq # and registers the handler, which more or - * less defeats how drm_irq works.. for now just fake - * the sequence number and use gettimeofday.. - * - event->event.sequence = drm_vblank_count_and_time( - dev, omap_crtc->id, &now); - */ - event->event.sequence = sequence++; - event->event.tv_sec = now.tv_sec; - event->event.tv_usec = now.tv_usec; - list_add_tail(&event->base.link, - &event->base.file_priv->event_list); - wake_up_interruptible(&event->base.file_priv->event_wait); - spin_unlock_irqrestore(&dev->event_lock, flags); - } + spin_unlock_irqrestore(&dev->event_lock, flags); } -static void page_flip_cb(void *arg) +static void page_flip_worker(struct work_struct *work) { - struct drm_crtc *crtc = arg; - struct omap_crtc *omap_crtc = to_omap_crtc(crtc); - struct drm_framebuffer *old_fb = omap_crtc->old_fb; + struct omap_crtc *omap_crtc = + container_of(work, struct omap_crtc, page_flip_work); + struct drm_crtc *crtc = &omap_crtc->base; + struct drm_device *dev = crtc->dev; + struct drm_display_mode *mode = &crtc->mode; struct drm_gem_object *bo; - omap_crtc->old_fb = NULL; - - omap_crtc_mode_set_base(crtc, crtc->x, crtc->y, old_fb); - - /* really we'd like to setup the callback atomically w/ setting the - * new scanout buffer to avoid getting stuck waiting an extra vblank - * cycle.. for now go for correctness and later figure out speed.. - */ - omap_plane_on_endwin(omap_crtc->plane, vblank_cb, crtc); + mutex_lock(&dev->mode_config.mutex); + omap_plane_mode_set(omap_crtc->plane, crtc, crtc->fb, + 0, 0, mode->hdisplay, mode->vdisplay, + crtc->x << 16, crtc->y << 16, + mode->hdisplay << 16, mode->vdisplay << 16, + vblank_cb, crtc); + mutex_unlock(&dev->mode_config.mutex); bo = omap_framebuffer_bo(crtc->fb, 0); drm_gem_object_unreference_unlocked(bo); } +static void page_flip_cb(void *arg) +{ + struct drm_crtc *crtc = arg; + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + struct omap_drm_private *priv = crtc->dev->dev_private; + + /* avoid assumptions about what ctxt we are called from: */ + queue_work(priv->wq, &omap_crtc->page_flip_work); +} + static int omap_crtc_page_flip_locked(struct drm_crtc *crtc, struct drm_framebuffer *fb, struct drm_pending_vblank_event *event) @@ -179,14 +308,14 @@ static int omap_crtc_page_flip_locked(struct drm_crtc *crtc, struct omap_crtc *omap_crtc = to_omap_crtc(crtc); struct drm_gem_object *bo; - DBG("%d -> %d", crtc->fb ? crtc->fb->base.id : -1, fb->base.id); + DBG("%d -> %d (event=%p)", crtc->fb ? crtc->fb->base.id : -1, + fb->base.id, event); - if (omap_crtc->event) { + if (omap_crtc->old_fb) { dev_err(dev->dev, "already a pending flip\n"); return -EINVAL; } - omap_crtc->old_fb = crtc->fb; omap_crtc->event = event; crtc->fb = fb; @@ -234,14 +363,244 @@ static const struct drm_crtc_helper_funcs omap_crtc_helper_funcs = { .load_lut = omap_crtc_load_lut, }; +const struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + return &omap_crtc->timings; +} + +enum omap_channel omap_crtc_channel(struct drm_crtc *crtc) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + return omap_crtc->channel; +} + +static void omap_crtc_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus) +{ + struct omap_crtc *omap_crtc = + container_of(irq, struct omap_crtc, error_irq); + struct drm_crtc *crtc = &omap_crtc->base; + DRM_ERROR("%s: errors: %08x\n", omap_crtc->name, irqstatus); + /* avoid getting in a flood, unregister the irq until next vblank */ + omap_irq_unregister(crtc->dev, &omap_crtc->error_irq); +} + +static void omap_crtc_apply_irq(struct omap_drm_irq *irq, uint32_t irqstatus) +{ + struct omap_crtc *omap_crtc = + container_of(irq, struct omap_crtc, apply_irq); + struct drm_crtc *crtc = &omap_crtc->base; + + if (!omap_crtc->error_irq.registered) + omap_irq_register(crtc->dev, &omap_crtc->error_irq); + + if (!dispc_mgr_go_busy(omap_crtc->channel)) { + struct omap_drm_private *priv = + crtc->dev->dev_private; + DBG("%s: apply done", omap_crtc->name); + omap_irq_unregister(crtc->dev, &omap_crtc->apply_irq); + queue_work(priv->wq, &omap_crtc->apply_work); + } +} + +static void apply_worker(struct work_struct *work) +{ + struct omap_crtc *omap_crtc = + container_of(work, struct omap_crtc, apply_work); + struct drm_crtc *crtc = &omap_crtc->base; + struct drm_device *dev = crtc->dev; + struct omap_drm_apply *apply, *n; + bool need_apply; + + /* + * Synchronize everything on mode_config.mutex, to keep + * the callbacks and list modification all serialized + * with respect to modesetting ioctls from userspace. + */ + mutex_lock(&dev->mode_config.mutex); + dispc_runtime_get(); + + /* + * If we are still pending a previous update, wait.. when the + * pending update completes, we get kicked again. + */ + if (omap_crtc->apply_irq.registered) + goto out; + + /* finish up previous apply's: */ + list_for_each_entry_safe(apply, n, + &omap_crtc->pending_applies, pending_node) { + apply->post_apply(apply); + list_del(&apply->pending_node); + } + + need_apply = !list_empty(&omap_crtc->queued_applies); + + /* then handle the next round of of queued apply's: */ + list_for_each_entry_safe(apply, n, + &omap_crtc->queued_applies, queued_node) { + apply->pre_apply(apply); + list_del(&apply->queued_node); + apply->queued = false; + list_add_tail(&apply->pending_node, + &omap_crtc->pending_applies); + } + + if (need_apply) { + enum omap_channel channel = omap_crtc->channel; + + DBG("%s: GO", omap_crtc->name); + + if (dispc_mgr_is_enabled(channel)) { + omap_irq_register(dev, &omap_crtc->apply_irq); + dispc_mgr_go(channel); + } else { + struct omap_drm_private *priv = dev->dev_private; + queue_work(priv->wq, &omap_crtc->apply_work); + } + } + +out: + dispc_runtime_put(); + mutex_unlock(&dev->mode_config.mutex); +} + +int omap_crtc_apply(struct drm_crtc *crtc, + struct omap_drm_apply *apply) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + struct drm_device *dev = crtc->dev; + + WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); + + /* no need to queue it again if it is already queued: */ + if (apply->queued) + return 0; + + apply->queued = true; + list_add_tail(&apply->queued_node, &omap_crtc->queued_applies); + + /* + * If there are no currently pending updates, then go ahead and + * kick the worker immediately, otherwise it will run again when + * the current update finishes. + */ + if (list_empty(&omap_crtc->pending_applies)) { + struct omap_drm_private *priv = crtc->dev->dev_private; + queue_work(priv->wq, &omap_crtc->apply_work); + } + + return 0; +} + +/* called only from apply */ +static void set_enabled(struct drm_crtc *crtc, bool enable) +{ + struct drm_device *dev = crtc->dev; + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + enum omap_channel channel = omap_crtc->channel; + struct omap_irq_wait *wait = NULL; + + if (dispc_mgr_is_enabled(channel) == enable) + return; + + /* ignore sync-lost irqs during enable/disable */ + omap_irq_unregister(crtc->dev, &omap_crtc->error_irq); + + if (dispc_mgr_get_framedone_irq(channel)) { + if (!enable) { + wait = omap_irq_wait_init(dev, + dispc_mgr_get_framedone_irq(channel), 1); + } + } else { + /* + * When we disable digit output, we need to wait until fields + * are done. Otherwise the DSS is still working, and turning + * off the clocks prevents DSS from going to OFF mode. And when + * enabling, we need to wait for the extra sync losts + */ + wait = omap_irq_wait_init(dev, + dispc_mgr_get_vsync_irq(channel), 2); + } + + dispc_mgr_enable(channel, enable); + + if (wait) { + int ret = omap_irq_wait(dev, wait, msecs_to_jiffies(100)); + if (ret) { + dev_err(dev->dev, "%s: timeout waiting for %s\n", + omap_crtc->name, enable ? "enable" : "disable"); + } + } + + omap_irq_register(crtc->dev, &omap_crtc->error_irq); +} + +static void omap_crtc_pre_apply(struct omap_drm_apply *apply) +{ + struct omap_crtc *omap_crtc = + container_of(apply, struct omap_crtc, apply); + struct drm_crtc *crtc = &omap_crtc->base; + struct drm_encoder *encoder = NULL; + + DBG("%s: enabled=%d, full=%d", omap_crtc->name, + omap_crtc->enabled, omap_crtc->full_update); + + if (omap_crtc->full_update) { + struct omap_drm_private *priv = crtc->dev->dev_private; + int i; + for (i = 0; i < priv->num_encoders; i++) { + if (priv->encoders[i]->crtc == crtc) { + encoder = priv->encoders[i]; + break; + } + } + } + + if (!omap_crtc->enabled) { + set_enabled(&omap_crtc->base, false); + if (encoder) + omap_encoder_set_enabled(encoder, false); + } else { + if (encoder) { + omap_encoder_set_enabled(encoder, false); + omap_encoder_update(encoder, &omap_crtc->mgr, + &omap_crtc->timings); + omap_encoder_set_enabled(encoder, true); + omap_crtc->full_update = false; + } + + dispc_mgr_setup(omap_crtc->channel, &omap_crtc->info); + dispc_mgr_set_timings(omap_crtc->channel, + &omap_crtc->timings); + set_enabled(&omap_crtc->base, true); + } + + omap_crtc->full_update = false; +} + +static void omap_crtc_post_apply(struct omap_drm_apply *apply) +{ + /* nothing needed for post-apply */ +} + +static const char *channel_names[] = { + [OMAP_DSS_CHANNEL_LCD] = "lcd", + [OMAP_DSS_CHANNEL_DIGIT] = "tv", + [OMAP_DSS_CHANNEL_LCD2] = "lcd2", +}; + /* initialize crtc */ struct drm_crtc *omap_crtc_init(struct drm_device *dev, - struct omap_overlay *ovl, int id) + struct drm_plane *plane, enum omap_channel channel, int id) { struct drm_crtc *crtc = NULL; - struct omap_crtc *omap_crtc = kzalloc(sizeof(*omap_crtc), GFP_KERNEL); + struct omap_crtc *omap_crtc; + struct omap_overlay_manager_info *info; + + DBG("%s", channel_names[channel]); - DBG("%s", ovl->name); + omap_crtc = kzalloc(sizeof(*omap_crtc), GFP_KERNEL); if (!omap_crtc) { dev_err(dev->dev, "could not allocate CRTC\n"); @@ -250,10 +609,40 @@ struct drm_crtc *omap_crtc_init(struct drm_device *dev, crtc = &omap_crtc->base; - omap_crtc->plane = omap_plane_init(dev, ovl, (1 << id), true); + INIT_WORK(&omap_crtc->page_flip_work, page_flip_worker); + INIT_WORK(&omap_crtc->apply_work, apply_worker); + + INIT_LIST_HEAD(&omap_crtc->pending_applies); + INIT_LIST_HEAD(&omap_crtc->queued_applies); + + omap_crtc->apply.pre_apply = omap_crtc_pre_apply; + omap_crtc->apply.post_apply = omap_crtc_post_apply; + + omap_crtc->apply_irq.irqmask = pipe2vbl(id); + omap_crtc->apply_irq.irq = omap_crtc_apply_irq; + + omap_crtc->error_irq.irqmask = + dispc_mgr_get_sync_lost_irq(channel); + omap_crtc->error_irq.irq = omap_crtc_error_irq; + omap_irq_register(dev, &omap_crtc->error_irq); + + omap_crtc->channel = channel; + omap_crtc->plane = plane; omap_crtc->plane->crtc = crtc; - omap_crtc->name = ovl->name; - omap_crtc->id = id; + omap_crtc->name = channel_names[channel]; + omap_crtc->pipe = id; + + /* temporary: */ + omap_crtc->mgr.id = channel; + + dss_install_mgr_ops(&mgr_ops); + + /* TODO: fix hard-coded setup.. add properties! */ + info = &omap_crtc->info; + info->default_color = 0x00000000; + info->trans_key = 0x00000000; + info->trans_key_type = OMAP_DSS_COLOR_KEY_GFX_DST; + info->trans_enabled = false; drm_crtc_init(dev, crtc, &omap_crtc_funcs); drm_crtc_helper_add(crtc, &omap_crtc_helper_funcs); diff --git a/drivers/staging/omapdrm/omap_drv.c b/drivers/staging/omapdrm/omap_drv.c index 84943e5..ae5ecc2 100644 --- a/drivers/staging/omapdrm/omap_drv.c +++ b/drivers/staging/omapdrm/omap_drv.c @@ -74,320 +74,99 @@ static int get_connector_type(struct omap_dss_device *dssdev) } } -#if 0 /* enable when dss2 supports hotplug */ -static int omap_drm_notifier(struct notifier_block *nb, - unsigned long evt, void *arg) -{ - switch (evt) { - case OMAP_DSS_SIZE_CHANGE: - case OMAP_DSS_HOTPLUG_CONNECT: - case OMAP_DSS_HOTPLUG_DISCONNECT: { - struct drm_device *dev = drm_device; - DBG("hotplug event: evt=%d, dev=%p", evt, dev); - if (dev) - drm_sysfs_hotplug_event(dev); - - return NOTIFY_OK; - } - default: /* don't care about other events for now */ - return NOTIFY_DONE; - } -} -#endif - -static void dump_video_chains(void) -{ - int i; - - DBG("dumping video chains: "); - for (i = 0; i < omap_dss_get_num_overlays(); i++) { - struct omap_overlay *ovl = omap_dss_get_overlay(i); - struct omap_overlay_manager *mgr = ovl->manager; - struct omap_dss_device *dssdev = mgr ? - mgr->get_device(mgr) : NULL; - if (dssdev) { - DBG("%d: %s -> %s -> %s", i, ovl->name, mgr->name, - dssdev->name); - } else if (mgr) { - DBG("%d: %s -> %s", i, ovl->name, mgr->name); - } else { - DBG("%d: %s", i, ovl->name); - } - } -} - -/* create encoders for each manager */ -static int create_encoder(struct drm_device *dev, - struct omap_overlay_manager *mgr) -{ - struct omap_drm_private *priv = dev->dev_private; - struct drm_encoder *encoder = omap_encoder_init(dev, mgr); - - if (!encoder) { - dev_err(dev->dev, "could not create encoder: %s\n", - mgr->name); - return -ENOMEM; - } - - BUG_ON(priv->num_encoders >= ARRAY_SIZE(priv->encoders)); - - priv->encoders[priv->num_encoders++] = encoder; - - return 0; -} - -/* create connectors for each display device */ -static int create_connector(struct drm_device *dev, - struct omap_dss_device *dssdev) +static int omap_modeset_init(struct drm_device *dev) { struct omap_drm_private *priv = dev->dev_private; - static struct notifier_block *notifier; - struct drm_connector *connector; - int j; - - if (!dssdev->driver) { - dev_warn(dev->dev, "%s has no driver.. skipping it\n", - dssdev->name); - return 0; - } + struct omap_dss_device *dssdev = NULL; + int num_ovls = dss_feat_get_num_ovls(); + int id; - if (!(dssdev->driver->get_timings || - dssdev->driver->read_edid)) { - dev_warn(dev->dev, "%s driver does not support " - "get_timings or read_edid.. skipping it!\n", - dssdev->name); - return 0; - } + drm_mode_config_init(dev); - connector = omap_connector_init(dev, - get_connector_type(dssdev), dssdev); + omap_drm_irq_install(dev); - if (!connector) { - dev_err(dev->dev, "could not create connector: %s\n", - dssdev->name); - return -ENOMEM; - } - - BUG_ON(priv->num_connectors >= ARRAY_SIZE(priv->connectors)); + /* + * Create private planes and CRTCs for the last NUM_CRTCs overlay + * plus manager: + */ + for (id = 0; id < min(num_crtc, num_ovls); id++) { + struct drm_plane *plane; + struct drm_crtc *crtc; - priv->connectors[priv->num_connectors++] = connector; + plane = omap_plane_init(dev, id, true); + crtc = omap_crtc_init(dev, plane, pipe2chan(id), id); -#if 0 /* enable when dss2 supports hotplug */ - notifier = kzalloc(sizeof(struct notifier_block), GFP_KERNEL); - notifier->notifier_call = omap_drm_notifier; - omap_dss_add_notify(dssdev, notifier); -#else - notifier = NULL; -#endif + BUG_ON(priv->num_crtcs >= ARRAY_SIZE(priv->crtcs)); + priv->crtcs[id] = crtc; + priv->num_crtcs++; - for (j = 0; j < priv->num_encoders; j++) { - struct omap_overlay_manager *mgr = - omap_encoder_get_manager(priv->encoders[j]); - if (mgr->get_device(mgr) == dssdev) { - drm_mode_connector_attach_encoder(connector, - priv->encoders[j]); - } + priv->planes[id] = plane; + priv->num_planes++; } - return 0; -} - -/* create up to max_overlays CRTCs mapping to overlays.. by default, - * connect the overlays to different managers/encoders, giving priority - * to encoders connected to connectors with a detected connection - */ -static int create_crtc(struct drm_device *dev, struct omap_overlay *ovl, - int *j, unsigned int connected_connectors) -{ - struct omap_drm_private *priv = dev->dev_private; - struct omap_overlay_manager *mgr = NULL; - struct drm_crtc *crtc; - - /* find next best connector, ones with detected connection first + /* + * Create normal planes for the remaining overlays: */ - while (*j < priv->num_connectors && !mgr) { - if (connected_connectors & (1 << *j)) { - struct drm_encoder *encoder = - omap_connector_attached_encoder( - priv->connectors[*j]); - if (encoder) - mgr = omap_encoder_get_manager(encoder); + for (; id < num_ovls; id++) { + struct drm_plane *plane = omap_plane_init(dev, id, false); - } - (*j)++; + BUG_ON(priv->num_planes >= ARRAY_SIZE(priv->planes)); + priv->planes[priv->num_planes++] = plane; } - /* if we couldn't find another connected connector, lets start - * looking at the unconnected connectors: - * - * note: it might not be immediately apparent, but thanks to - * the !mgr check in both this loop and the one above, the only - * way to enter this loop is with *j == priv->num_connectors, - * so idx can never go negative. - */ - while (*j < 2 * priv->num_connectors && !mgr) { - int idx = *j - priv->num_connectors; - if (!(connected_connectors & (1 << idx))) { - struct drm_encoder *encoder = - omap_connector_attached_encoder( - priv->connectors[idx]); - if (encoder) - mgr = omap_encoder_get_manager(encoder); + for_each_dss_dev(dssdev) { + struct drm_connector *connector; + struct drm_encoder *encoder; + if (!dssdev->driver) { + dev_warn(dev->dev, "%s has no driver.. skipping it\n", + dssdev->name); + return 0; } - (*j)++; - } - - crtc = omap_crtc_init(dev, ovl, priv->num_crtcs); - - if (!crtc) { - dev_err(dev->dev, "could not create CRTC: %s\n", - ovl->name); - return -ENOMEM; - } - BUG_ON(priv->num_crtcs >= ARRAY_SIZE(priv->crtcs)); - - priv->crtcs[priv->num_crtcs++] = crtc; - - return 0; -} - -static int create_plane(struct drm_device *dev, struct omap_overlay *ovl, - unsigned int possible_crtcs) -{ - struct omap_drm_private *priv = dev->dev_private; - struct drm_plane *plane = - omap_plane_init(dev, ovl, possible_crtcs, false); - - if (!plane) { - dev_err(dev->dev, "could not create plane: %s\n", - ovl->name); - return -ENOMEM; - } - - BUG_ON(priv->num_planes >= ARRAY_SIZE(priv->planes)); - - priv->planes[priv->num_planes++] = plane; - - return 0; -} - -static int match_dev_name(struct omap_dss_device *dssdev, void *data) -{ - return !strcmp(dssdev->name, data); -} - -static unsigned int detect_connectors(struct drm_device *dev) -{ - struct omap_drm_private *priv = dev->dev_private; - unsigned int connected_connectors = 0; - int i; - - for (i = 0; i < priv->num_connectors; i++) { - struct drm_connector *connector = priv->connectors[i]; - if (omap_connector_detect(connector, true) == - connector_status_connected) { - connected_connectors |= (1 << i); + if (!(dssdev->driver->get_timings || + dssdev->driver->read_edid)) { + dev_warn(dev->dev, "%s driver does not support " + "get_timings or read_edid.. skipping it!\n", + dssdev->name); + return 0; } - } - - return connected_connectors; -} -static int omap_modeset_init(struct drm_device *dev) -{ - const struct omap_drm_platform_data *pdata = dev->dev->platform_data; - struct omap_kms_platform_data *kms_pdata = NULL; - struct omap_drm_private *priv = dev->dev_private; - struct omap_dss_device *dssdev = NULL; - int i, j; - unsigned int connected_connectors = 0; + encoder = omap_encoder_init(dev, dssdev); - drm_mode_config_init(dev); - - if (pdata && pdata->kms_pdata) { - kms_pdata = pdata->kms_pdata; - - /* if platform data is provided by the board file, use it to - * control which overlays, managers, and devices we own. - */ - for (i = 0; i < kms_pdata->mgr_cnt; i++) { - struct omap_overlay_manager *mgr = - omap_dss_get_overlay_manager( - kms_pdata->mgr_ids[i]); - create_encoder(dev, mgr); - } - - for (i = 0; i < kms_pdata->dev_cnt; i++) { - struct omap_dss_device *dssdev = - omap_dss_find_device( - (void *)kms_pdata->dev_names[i], - match_dev_name); - if (!dssdev) { - dev_warn(dev->dev, "no such dssdev: %s\n", - kms_pdata->dev_names[i]); - continue; - } - create_connector(dev, dssdev); + if (!encoder) { + dev_err(dev->dev, "could not create encoder: %s\n", + dssdev->name); + return -ENOMEM; } - connected_connectors = detect_connectors(dev); + connector = omap_connector_init(dev, + get_connector_type(dssdev), dssdev, encoder); - j = 0; - for (i = 0; i < kms_pdata->ovl_cnt; i++) { - struct omap_overlay *ovl = - omap_dss_get_overlay(kms_pdata->ovl_ids[i]); - create_crtc(dev, ovl, &j, connected_connectors); + if (!connector) { + dev_err(dev->dev, "could not create connector: %s\n", + dssdev->name); + return -ENOMEM; } - for (i = 0; i < kms_pdata->pln_cnt; i++) { - struct omap_overlay *ovl = - omap_dss_get_overlay(kms_pdata->pln_ids[i]); - create_plane(dev, ovl, (1 << priv->num_crtcs) - 1); - } - } else { - /* otherwise just grab up to CONFIG_DRM_OMAP_NUM_CRTCS and try - * to make educated guesses about everything else - */ - int max_overlays = min(omap_dss_get_num_overlays(), num_crtc); + BUG_ON(priv->num_encoders >= ARRAY_SIZE(priv->encoders)); + BUG_ON(priv->num_connectors >= ARRAY_SIZE(priv->connectors)); - for (i = 0; i < omap_dss_get_num_overlay_managers(); i++) - create_encoder(dev, omap_dss_get_overlay_manager(i)); - - for_each_dss_dev(dssdev) { - create_connector(dev, dssdev); - } + priv->encoders[priv->num_encoders++] = encoder; + priv->connectors[priv->num_connectors++] = connector; - connected_connectors = detect_connectors(dev); + drm_mode_connector_attach_encoder(connector, encoder); - j = 0; - for (i = 0; i < max_overlays; i++) { - create_crtc(dev, omap_dss_get_overlay(i), - &j, connected_connectors); - } - - /* use any remaining overlays as drm planes */ - for (; i < omap_dss_get_num_overlays(); i++) { - struct omap_overlay *ovl = omap_dss_get_overlay(i); - create_plane(dev, ovl, (1 << priv->num_crtcs) - 1); + /* figure out which crtc's we can connect the encoder to: */ + encoder->possible_crtcs = 0; + for (id = 0; id < priv->num_crtcs; id++) { + enum omap_dss_output_id supported_outputs = + dss_feat_get_supported_outputs(pipe2chan(id)); + if (supported_outputs & dssdev->output->id) + encoder->possible_crtcs |= (1 << id); } } - /* for now keep the mapping of CRTCs and encoders static.. */ - for (i = 0; i < priv->num_encoders; i++) { - struct drm_encoder *encoder = priv->encoders[i]; - struct omap_overlay_manager *mgr = - omap_encoder_get_manager(encoder); - - encoder->possible_crtcs = (1 << priv->num_crtcs) - 1; - - DBG("%s: possible_crtcs=%08x", mgr->name, - encoder->possible_crtcs); - } - - dump_video_chains(); - dev->mode_config.min_width = 32; dev->mode_config.min_height = 32; @@ -450,7 +229,7 @@ static int ioctl_gem_new(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_omap_gem_new *args = data; - DBG("%p:%p: size=0x%08x, flags=%08x", dev, file_priv, + VERB("%p:%p: size=0x%08x, flags=%08x", dev, file_priv, args->size.bytes, args->flags); return omap_gem_new_handle(dev, file_priv, args->size, args->flags, &args->handle); @@ -510,7 +289,7 @@ static int ioctl_gem_info(struct drm_device *dev, void *data, struct drm_gem_object *obj; int ret = 0; - DBG("%p:%p: handle=%d", dev, file_priv, args->handle); + VERB("%p:%p: handle=%d", dev, file_priv, args->handle); obj = drm_gem_object_lookup(dev, file_priv, args->handle); if (!obj) @@ -565,14 +344,6 @@ static int dev_load(struct drm_device *dev, unsigned long flags) dev->dev_private = priv; - ret = omapdss_compat_init(); - if (ret) { - dev_err(dev->dev, "coult not init omapdss\n"); - dev->dev_private = NULL; - kfree(priv); - return ret; - } - priv->wq = alloc_ordered_workqueue("omapdrm", 0); INIT_LIST_HEAD(&priv->obj_list); @@ -584,10 +355,13 @@ static int dev_load(struct drm_device *dev, unsigned long flags) dev_err(dev->dev, "omap_modeset_init failed: ret=%d\n", ret); dev->dev_private = NULL; kfree(priv); - omapdss_compat_uninit(); return ret; } + ret = drm_vblank_init(dev, priv->num_crtcs); + if (ret) + dev_warn(dev->dev, "could not init vblank\n"); + priv->fbdev = omap_fbdev_init(dev); if (!priv->fbdev) { dev_warn(dev->dev, "omap_fbdev_init failed\n"); @@ -596,10 +370,6 @@ static int dev_load(struct drm_device *dev, unsigned long flags) drm_kms_helper_poll_init(dev); - ret = drm_vblank_init(dev, priv->num_crtcs); - if (ret) - dev_warn(dev->dev, "could not init vblank\n"); - return 0; } @@ -609,8 +379,9 @@ static int dev_unload(struct drm_device *dev) DBG("unload: dev=%p", dev); - drm_vblank_cleanup(dev); drm_kms_helper_poll_fini(dev); + drm_vblank_cleanup(dev); + omap_drm_irq_uninstall(dev); omap_fbdev_free(dev); omap_modeset_free(dev); @@ -619,8 +390,6 @@ static int dev_unload(struct drm_device *dev) flush_workqueue(priv->wq); destroy_workqueue(priv->wq); - omapdss_compat_uninit(); - kfree(dev->dev_private); dev->dev_private = NULL; @@ -680,7 +449,9 @@ static void dev_lastclose(struct drm_device *dev) } } + mutex_lock(&dev->mode_config.mutex); ret = drm_fb_helper_restore_fbdev_mode(priv->fbdev); + mutex_unlock(&dev->mode_config.mutex); if (ret) DBG("failed to restore crtc mode"); } @@ -695,60 +466,6 @@ static void dev_postclose(struct drm_device *dev, struct drm_file *file) DBG("postclose: dev=%p, file=%p", dev, file); } -/** - * enable_vblank - enable vblank interrupt events - * @dev: DRM device - * @crtc: which irq to enable - * - * Enable vblank interrupts for @crtc. If the device doesn't have - * a hardware vblank counter, this routine should be a no-op, since - * interrupts will have to stay on to keep the count accurate. - * - * RETURNS - * Zero on success, appropriate errno if the given @crtc's vblank - * interrupt cannot be enabled. - */ -static int dev_enable_vblank(struct drm_device *dev, int crtc) -{ - DBG("enable_vblank: dev=%p, crtc=%d", dev, crtc); - return 0; -} - -/** - * disable_vblank - disable vblank interrupt events - * @dev: DRM device - * @crtc: which irq to enable - * - * Disable vblank interrupts for @crtc. If the device doesn't have - * a hardware vblank counter, this routine should be a no-op, since - * interrupts will have to stay on to keep the count accurate. - */ -static void dev_disable_vblank(struct drm_device *dev, int crtc) -{ - DBG("disable_vblank: dev=%p, crtc=%d", dev, crtc); -} - -static irqreturn_t dev_irq_handler(DRM_IRQ_ARGS) -{ - return IRQ_HANDLED; -} - -static void dev_irq_preinstall(struct drm_device *dev) -{ - DBG("irq_preinstall: dev=%p", dev); -} - -static int dev_irq_postinstall(struct drm_device *dev) -{ - DBG("irq_postinstall: dev=%p", dev); - return 0; -} - -static void dev_irq_uninstall(struct drm_device *dev) -{ - DBG("irq_uninstall: dev=%p", dev); -} - static const struct vm_operations_struct omap_gem_vm_ops = { .fault = omap_gem_fault, .open = drm_gem_vm_open, @@ -778,12 +495,12 @@ static struct drm_driver omap_drm_driver = { .preclose = dev_preclose, .postclose = dev_postclose, .get_vblank_counter = drm_vblank_count, - .enable_vblank = dev_enable_vblank, - .disable_vblank = dev_disable_vblank, - .irq_preinstall = dev_irq_preinstall, - .irq_postinstall = dev_irq_postinstall, - .irq_uninstall = dev_irq_uninstall, - .irq_handler = dev_irq_handler, + .enable_vblank = omap_irq_enable_vblank, + .disable_vblank = omap_irq_disable_vblank, + .irq_preinstall = omap_irq_preinstall, + .irq_postinstall = omap_irq_postinstall, + .irq_uninstall = omap_irq_uninstall, + .irq_handler = omap_irq_handler, #ifdef CONFIG_DEBUG_FS .debugfs_init = omap_debugfs_init, .debugfs_cleanup = omap_debugfs_cleanup, diff --git a/drivers/staging/omapdrm/omap_drv.h b/drivers/staging/omapdrm/omap_drv.h index 1d4aea5..cd1f22b 100644 --- a/drivers/staging/omapdrm/omap_drv.h +++ b/drivers/staging/omapdrm/omap_drv.h @@ -28,6 +28,7 @@ #include #include "omap_drm.h" + #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt, ##__VA_ARGS__) /* verbose debug */ @@ -39,6 +40,51 @@ */ #define MAX_MAPPERS 2 +/* parameters which describe (unrotated) coordinates of scanout within a fb: */ +struct omap_drm_window { + uint32_t rotation; + int32_t crtc_x, crtc_y; /* signed because can be offscreen */ + uint32_t crtc_w, crtc_h; + uint32_t src_x, src_y; + uint32_t src_w, src_h; +}; + +/* Once GO bit is set, we can't make further updates to shadowed registers + * until the GO bit is cleared. So various parts in the kms code that need + * to update shadowed registers queue up a pair of callbacks, pre_apply + * which is called before setting GO bit, and post_apply that is called + * after GO bit is cleared. The crtc manages the queuing, and everyone + * else goes thru omap_crtc_apply() using these callbacks so that the + * code which has to deal w/ GO bit state is centralized. + */ +struct omap_drm_apply { + struct list_head pending_node, queued_node; + bool queued; + void (*pre_apply)(struct omap_drm_apply *apply); + void (*post_apply)(struct omap_drm_apply *apply); +}; + +/* For transiently registering for different DSS irqs that various parts + * of the KMS code need during setup/configuration. We these are not + * necessarily the same as what drm_vblank_get/put() are requesting, and + * the hysteresis in drm_vblank_put() is not necessarily desirable for + * internal housekeeping related irq usage. + */ +struct omap_drm_irq { + struct list_head node; + uint32_t irqmask; + bool registered; + void (*irq)(struct omap_drm_irq *irq, uint32_t irqstatus); +}; + +/* For KMS code that needs to wait for a certain # of IRQs: + */ +struct omap_irq_wait; +struct omap_irq_wait * omap_irq_wait_init(struct drm_device *dev, + uint32_t irqmask, int count); +int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait, + unsigned long timeout); + struct omap_drm_private { uint32_t omaprev; @@ -58,6 +104,7 @@ struct omap_drm_private { struct workqueue_struct *wq; + /* list of GEM objects: */ struct list_head obj_list; bool has_dmm; @@ -65,6 +112,11 @@ struct omap_drm_private { /* properties: */ struct drm_property *rotation_prop; struct drm_property *zorder_prop; + + /* irq handling: */ + struct list_head irq_list; /* list of omap_drm_irq */ + uint32_t vblank_mask; /* irq bits set for userspace vblank */ + struct omap_drm_irq error_handler; }; /* this should probably be in drm-core to standardize amongst drivers */ @@ -75,15 +127,6 @@ struct omap_drm_private { #define DRM_REFLECT_X 4 #define DRM_REFLECT_Y 5 -/* parameters which describe (unrotated) coordinates of scanout within a fb: */ -struct omap_drm_window { - uint32_t rotation; - int32_t crtc_x, crtc_y; /* signed because can be offscreen */ - uint32_t crtc_w, crtc_h; - uint32_t src_x, src_y; - uint32_t src_w, src_h; -}; - #ifdef CONFIG_DEBUG_FS int omap_debugfs_init(struct drm_minor *minor); void omap_debugfs_cleanup(struct drm_minor *minor); @@ -92,23 +135,36 @@ void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m); void omap_gem_describe_objects(struct list_head *list, struct seq_file *m); #endif +int omap_irq_enable_vblank(struct drm_device *dev, int crtc); +void omap_irq_disable_vblank(struct drm_device *dev, int crtc); +irqreturn_t omap_irq_handler(DRM_IRQ_ARGS); +void omap_irq_preinstall(struct drm_device *dev); +int omap_irq_postinstall(struct drm_device *dev); +void omap_irq_uninstall(struct drm_device *dev); +void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq); +void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq); +int omap_drm_irq_uninstall(struct drm_device *dev); +int omap_drm_irq_install(struct drm_device *dev); + struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev); void omap_fbdev_free(struct drm_device *dev); +const struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc); +enum omap_channel omap_crtc_channel(struct drm_crtc *crtc); +int omap_crtc_apply(struct drm_crtc *crtc, + struct omap_drm_apply *apply); struct drm_crtc *omap_crtc_init(struct drm_device *dev, - struct omap_overlay *ovl, int id); + struct drm_plane *plane, enum omap_channel channel, int id); struct drm_plane *omap_plane_init(struct drm_device *dev, - struct omap_overlay *ovl, unsigned int possible_crtcs, - bool priv); + int plane_id, bool private_plane); int omap_plane_dpms(struct drm_plane *plane, int mode); int omap_plane_mode_set(struct drm_plane *plane, struct drm_crtc *crtc, struct drm_framebuffer *fb, int crtc_x, int crtc_y, unsigned int crtc_w, unsigned int crtc_h, uint32_t src_x, uint32_t src_y, - uint32_t src_w, uint32_t src_h); -void omap_plane_on_endwin(struct drm_plane *plane, + uint32_t src_w, uint32_t src_h, void (*fxn)(void *), void *arg); void omap_plane_install_properties(struct drm_plane *plane, struct drm_mode_object *obj); @@ -116,21 +172,25 @@ int omap_plane_set_property(struct drm_plane *plane, struct drm_property *property, uint64_t val); struct drm_encoder *omap_encoder_init(struct drm_device *dev, - struct omap_overlay_manager *mgr); -struct omap_overlay_manager *omap_encoder_get_manager( + struct omap_dss_device *dssdev); +int omap_encoder_set_enabled(struct drm_encoder *encoder, bool enabled); +int omap_encoder_update(struct drm_encoder *encoder, + struct omap_overlay_manager *mgr, + struct omap_video_timings *timings); + +struct drm_connector *omap_connector_init(struct drm_device *dev, + int connector_type, struct omap_dss_device *dssdev, struct drm_encoder *encoder); struct drm_encoder *omap_connector_attached_encoder( struct drm_connector *connector); -enum drm_connector_status omap_connector_detect( - struct drm_connector *connector, bool force); - -struct drm_connector *omap_connector_init(struct drm_device *dev, - int connector_type, struct omap_dss_device *dssdev); -void omap_connector_mode_set(struct drm_connector *connector, - struct drm_display_mode *mode); void omap_connector_flush(struct drm_connector *connector, int x, int y, int w, int h); +void copy_timings_omap_to_drm(struct drm_display_mode *mode, + struct omap_video_timings *timings); +void copy_timings_drm_to_omap(struct omap_video_timings *timings, + struct drm_display_mode *mode); + uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats, uint32_t max_formats, enum omap_color_mode supported_modes); struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev, @@ -207,6 +267,40 @@ static inline int align_pitch(int pitch, int width, int bpp) return ALIGN(pitch, 8 * bytespp); } +static inline enum omap_channel pipe2chan(int pipe) +{ + int num_mgrs = dss_feat_get_num_mgrs(); + + /* + * We usually don't want to create a CRTC for each manager, + * at least not until we have a way to expose private planes + * to userspace. Otherwise there would not be enough video + * pipes left for drm planes. The higher #'d managers tend + * to have more features so start in reverse order. + */ + return num_mgrs - pipe - 1; +} + +/* map crtc to vblank mask */ +static inline uint32_t pipe2vbl(int crtc) +{ + enum omap_channel channel = pipe2chan(crtc); + return dispc_mgr_get_vsync_irq(channel); +} + +static inline int crtc2pipe(struct drm_device *dev, struct drm_crtc *crtc) +{ + struct omap_drm_private *priv = dev->dev_private; + int i; + + for (i = 0; i < ARRAY_SIZE(priv->crtcs); i++) + if (priv->crtcs[i] == crtc) + return i; + + BUG(); /* bogus CRTC ptr */ + return -1; +} + /* should these be made into common util helpers? */ diff --git a/drivers/staging/omapdrm/omap_encoder.c b/drivers/staging/omapdrm/omap_encoder.c index 5341d5e..e053160 100644 --- a/drivers/staging/omapdrm/omap_encoder.c +++ b/drivers/staging/omapdrm/omap_encoder.c @@ -22,37 +22,56 @@ #include "drm_crtc.h" #include "drm_crtc_helper.h" +#include + + /* * encoder funcs */ #define to_omap_encoder(x) container_of(x, struct omap_encoder, base) +/* The encoder and connector both map to same dssdev.. the encoder + * handles the 'active' parts, ie. anything the modifies the state + * of the hw, and the connector handles the 'read-only' parts, like + * detecting connection and reading edid. + */ struct omap_encoder { struct drm_encoder base; - struct omap_overlay_manager *mgr; + struct omap_dss_device *dssdev; }; static void omap_encoder_destroy(struct drm_encoder *encoder) { struct omap_encoder *omap_encoder = to_omap_encoder(encoder); - DBG("%s", omap_encoder->mgr->name); drm_encoder_cleanup(encoder); kfree(omap_encoder); } +static const struct drm_encoder_funcs omap_encoder_funcs = { + .destroy = omap_encoder_destroy, +}; + +/* + * The CRTC drm_crtc_helper_set_mode() doesn't really give us the right + * order.. the easiest way to work around this for now is to make all + * the encoder-helper's no-op's and have the omap_crtc code take care + * of the sequencing and call us in the right points. + * + * Eventually to handle connecting CRTCs to different encoders properly, + * either the CRTC helpers need to change or we need to replace + * drm_crtc_helper_set_mode(), but lets wait until atomic-modeset for + * that. + */ + static void omap_encoder_dpms(struct drm_encoder *encoder, int mode) { - struct omap_encoder *omap_encoder = to_omap_encoder(encoder); - DBG("%s: %d", omap_encoder->mgr->name, mode); } static bool omap_encoder_mode_fixup(struct drm_encoder *encoder, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { - struct omap_encoder *omap_encoder = to_omap_encoder(encoder); - DBG("%s", omap_encoder->mgr->name); return true; } @@ -60,47 +79,16 @@ static void omap_encoder_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { - struct omap_encoder *omap_encoder = to_omap_encoder(encoder); - struct drm_device *dev = encoder->dev; - struct omap_drm_private *priv = dev->dev_private; - int i; - - mode = adjusted_mode; - - DBG("%s: set mode: %dx%d", omap_encoder->mgr->name, - mode->hdisplay, mode->vdisplay); - - for (i = 0; i < priv->num_connectors; i++) { - struct drm_connector *connector = priv->connectors[i]; - if (connector->encoder == encoder) - omap_connector_mode_set(connector, mode); - - } } static void omap_encoder_prepare(struct drm_encoder *encoder) { - struct omap_encoder *omap_encoder = to_omap_encoder(encoder); - struct drm_encoder_helper_funcs *encoder_funcs = - encoder->helper_private; - DBG("%s", omap_encoder->mgr->name); - encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF); } static void omap_encoder_commit(struct drm_encoder *encoder) { - struct omap_encoder *omap_encoder = to_omap_encoder(encoder); - struct drm_encoder_helper_funcs *encoder_funcs = - encoder->helper_private; - DBG("%s", omap_encoder->mgr->name); - omap_encoder->mgr->apply(omap_encoder->mgr); - encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); } -static const struct drm_encoder_funcs omap_encoder_funcs = { - .destroy = omap_encoder_destroy, -}; - static const struct drm_encoder_helper_funcs omap_encoder_helper_funcs = { .dpms = omap_encoder_dpms, .mode_fixup = omap_encoder_mode_fixup, @@ -109,23 +97,54 @@ static const struct drm_encoder_helper_funcs omap_encoder_helper_funcs = { .commit = omap_encoder_commit, }; -struct omap_overlay_manager *omap_encoder_get_manager( - struct drm_encoder *encoder) +/* + * Instead of relying on the helpers for modeset, the omap_crtc code + * calls these functions in the proper sequence. + */ + +int omap_encoder_set_enabled(struct drm_encoder *encoder, bool enabled) { struct omap_encoder *omap_encoder = to_omap_encoder(encoder); - return omap_encoder->mgr; + struct omap_dss_device *dssdev = omap_encoder->dssdev; + struct omap_dss_driver *dssdrv = dssdev->driver; + + if (enabled) { + return dssdrv->enable(dssdev); + } else { + dssdrv->disable(dssdev); + return 0; + } +} + +int omap_encoder_update(struct drm_encoder *encoder, + struct omap_overlay_manager *mgr, + struct omap_video_timings *timings) +{ + struct drm_device *dev = encoder->dev; + struct omap_encoder *omap_encoder = to_omap_encoder(encoder); + struct omap_dss_device *dssdev = omap_encoder->dssdev; + struct omap_dss_driver *dssdrv = dssdev->driver; + int ret; + + dssdev->output->manager = mgr; + + ret = dssdrv->check_timings(dssdev, timings); + if (ret) { + dev_err(dev->dev, "could not set timings: %d\n", ret); + return ret; + } + + dssdrv->set_timings(dssdev, timings); + + return 0; } /* initialize encoder */ struct drm_encoder *omap_encoder_init(struct drm_device *dev, - struct omap_overlay_manager *mgr) + struct omap_dss_device *dssdev) { struct drm_encoder *encoder = NULL; struct omap_encoder *omap_encoder; - struct omap_overlay_manager_info info; - int ret; - - DBG("%s", mgr->name); omap_encoder = kzalloc(sizeof(*omap_encoder), GFP_KERNEL); if (!omap_encoder) { @@ -133,33 +152,14 @@ struct drm_encoder *omap_encoder_init(struct drm_device *dev, goto fail; } - omap_encoder->mgr = mgr; + omap_encoder->dssdev = dssdev; + encoder = &omap_encoder->base; drm_encoder_init(dev, encoder, &omap_encoder_funcs, DRM_MODE_ENCODER_TMDS); drm_encoder_helper_add(encoder, &omap_encoder_helper_funcs); - mgr->get_manager_info(mgr, &info); - - /* TODO: fix hard-coded setup.. */ - info.default_color = 0x00000000; - info.trans_key = 0x00000000; - info.trans_key_type = OMAP_DSS_COLOR_KEY_GFX_DST; - info.trans_enabled = false; - - ret = mgr->set_manager_info(mgr, &info); - if (ret) { - dev_err(dev->dev, "could not set manager info\n"); - goto fail; - } - - ret = mgr->apply(mgr); - if (ret) { - dev_err(dev->dev, "could not apply\n"); - goto fail; - } - return encoder; fail: diff --git a/drivers/staging/omapdrm/omap_irq.c b/drivers/staging/omapdrm/omap_irq.c new file mode 100644 index 0000000..2629ba7 --- /dev/null +++ b/drivers/staging/omapdrm/omap_irq.c @@ -0,0 +1,322 @@ +/* + * drivers/staging/omapdrm/omap_irq.c + * + * Copyright (C) 2012 Texas Instruments + * Author: Rob Clark + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include "omap_drv.h" + +static DEFINE_SPINLOCK(list_lock); + +static void omap_irq_error_handler(struct omap_drm_irq *irq, + uint32_t irqstatus) +{ + DRM_ERROR("errors: %08x\n", irqstatus); +} + +/* call with list_lock and dispc runtime held */ +static void omap_irq_update(struct drm_device *dev) +{ + struct omap_drm_private *priv = dev->dev_private; + struct omap_drm_irq *irq; + uint32_t irqmask = priv->vblank_mask; + + BUG_ON(!spin_is_locked(&list_lock)); + + list_for_each_entry(irq, &priv->irq_list, node) + irqmask |= irq->irqmask; + + DBG("irqmask=%08x", irqmask); + + dispc_write_irqenable(irqmask); + dispc_read_irqenable(); /* flush posted write */ +} + +void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq) +{ + struct omap_drm_private *priv = dev->dev_private; + unsigned long flags; + + dispc_runtime_get(); + spin_lock_irqsave(&list_lock, flags); + + if (!WARN_ON(irq->registered)) { + irq->registered = true; + list_add(&irq->node, &priv->irq_list); + omap_irq_update(dev); + } + + spin_unlock_irqrestore(&list_lock, flags); + dispc_runtime_put(); +} + +void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq) +{ + unsigned long flags; + + dispc_runtime_get(); + spin_lock_irqsave(&list_lock, flags); + + if (!WARN_ON(!irq->registered)) { + irq->registered = false; + list_del(&irq->node); + omap_irq_update(dev); + } + + spin_unlock_irqrestore(&list_lock, flags); + dispc_runtime_put(); +} + +struct omap_irq_wait { + struct omap_drm_irq irq; + int count; +}; + +static DECLARE_WAIT_QUEUE_HEAD(wait_event); + +static void wait_irq(struct omap_drm_irq *irq, uint32_t irqstatus) +{ + struct omap_irq_wait *wait = + container_of(irq, struct omap_irq_wait, irq); + wait->count--; + wake_up_all(&wait_event); +} + +struct omap_irq_wait * omap_irq_wait_init(struct drm_device *dev, + uint32_t irqmask, int count) +{ + struct omap_irq_wait *wait = kzalloc(sizeof(*wait), GFP_KERNEL); + wait->irq.irq = wait_irq; + wait->irq.irqmask = irqmask; + wait->count = count; + omap_irq_register(dev, &wait->irq); + return wait; +} + +int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait, + unsigned long timeout) +{ + int ret = wait_event_timeout(wait_event, (wait->count <= 0), timeout); + omap_irq_unregister(dev, &wait->irq); + kfree(wait); + if (ret == 0) + return -1; + return 0; +} + +/** + * enable_vblank - enable vblank interrupt events + * @dev: DRM device + * @crtc: which irq to enable + * + * Enable vblank interrupts for @crtc. If the device doesn't have + * a hardware vblank counter, this routine should be a no-op, since + * interrupts will have to stay on to keep the count accurate. + * + * RETURNS + * Zero on success, appropriate errno if the given @crtc's vblank + * interrupt cannot be enabled. + */ +int omap_irq_enable_vblank(struct drm_device *dev, int crtc) +{ + struct omap_drm_private *priv = dev->dev_private; + unsigned long flags; + + DBG("dev=%p, crtc=%d", dev, crtc); + + dispc_runtime_get(); + spin_lock_irqsave(&list_lock, flags); + priv->vblank_mask |= pipe2vbl(crtc); + omap_irq_update(dev); + spin_unlock_irqrestore(&list_lock, flags); + dispc_runtime_put(); + + return 0; +} + +/** + * disable_vblank - disable vblank interrupt events + * @dev: DRM device + * @crtc: which irq to enable + * + * Disable vblank interrupts for @crtc. If the device doesn't have + * a hardware vblank counter, this routine should be a no-op, since + * interrupts will have to stay on to keep the count accurate. + */ +void omap_irq_disable_vblank(struct drm_device *dev, int crtc) +{ + struct omap_drm_private *priv = dev->dev_private; + unsigned long flags; + + DBG("dev=%p, crtc=%d", dev, crtc); + + dispc_runtime_get(); + spin_lock_irqsave(&list_lock, flags); + priv->vblank_mask &= ~pipe2vbl(crtc); + omap_irq_update(dev); + spin_unlock_irqrestore(&list_lock, flags); + dispc_runtime_put(); +} + +irqreturn_t omap_irq_handler(DRM_IRQ_ARGS) +{ + struct drm_device *dev = (struct drm_device *) arg; + struct omap_drm_private *priv = dev->dev_private; + struct omap_drm_irq *handler, *n; + unsigned long flags; + unsigned int id; + u32 irqstatus; + + irqstatus = dispc_read_irqstatus(); + dispc_clear_irqstatus(irqstatus); + dispc_read_irqstatus(); /* flush posted write */ + + VERB("irqs: %08x", irqstatus); + + for (id = 0; id < priv->num_crtcs; id++) + if (irqstatus & pipe2vbl(id)) + drm_handle_vblank(dev, id); + + spin_lock_irqsave(&list_lock, flags); + list_for_each_entry_safe(handler, n, &priv->irq_list, node) { + if (handler->irqmask & irqstatus) { + spin_unlock_irqrestore(&list_lock, flags); + handler->irq(handler, handler->irqmask & irqstatus); + spin_lock_irqsave(&list_lock, flags); + } + } + spin_unlock_irqrestore(&list_lock, flags); + + return IRQ_HANDLED; +} + +void omap_irq_preinstall(struct drm_device *dev) +{ + DBG("dev=%p", dev); + dispc_runtime_get(); + dispc_clear_irqstatus(0xffffffff); + dispc_runtime_put(); +} + +int omap_irq_postinstall(struct drm_device *dev) +{ + struct omap_drm_private *priv = dev->dev_private; + struct omap_drm_irq *error_handler = &priv->error_handler; + + DBG("dev=%p", dev); + + INIT_LIST_HEAD(&priv->irq_list); + + error_handler->irq = omap_irq_error_handler; + error_handler->irqmask = DISPC_IRQ_OCP_ERR; + + /* for now ignore DISPC_IRQ_SYNC_LOST_DIGIT.. really I think + * we just need to ignore it while enabling tv-out + */ + error_handler->irqmask &= ~DISPC_IRQ_SYNC_LOST_DIGIT; + + omap_irq_register(dev, error_handler); + + return 0; +} + +void omap_irq_uninstall(struct drm_device *dev) +{ + DBG("dev=%p", dev); + // TODO prolly need to call drm_irq_uninstall() somewhere too +} + +/* + * We need a special version, instead of just using drm_irq_install(), + * because we need to register the irq via omapdss. Once omapdss and + * omapdrm are merged together we can assign the dispc hwmod data to + * ourselves and drop these and just use drm_irq_{install,uninstall}() + */ + +int omap_drm_irq_install(struct drm_device *dev) +{ + int ret; + + mutex_lock(&dev->struct_mutex); + + if (dev->irq_enabled) { + mutex_unlock(&dev->struct_mutex); + return -EBUSY; + } + dev->irq_enabled = 1; + mutex_unlock(&dev->struct_mutex); + + /* Before installing handler */ + if (dev->driver->irq_preinstall) + dev->driver->irq_preinstall(dev); + + ret = dispc_request_irq(dev->driver->irq_handler, dev); + + if (ret < 0) { + mutex_lock(&dev->struct_mutex); + dev->irq_enabled = 0; + mutex_unlock(&dev->struct_mutex); + return ret; + } + + /* After installing handler */ + if (dev->driver->irq_postinstall) + ret = dev->driver->irq_postinstall(dev); + + if (ret < 0) { + mutex_lock(&dev->struct_mutex); + dev->irq_enabled = 0; + mutex_unlock(&dev->struct_mutex); + dispc_free_irq(dev); + } + + return ret; +} + +int omap_drm_irq_uninstall(struct drm_device *dev) +{ + unsigned long irqflags; + int irq_enabled, i; + + mutex_lock(&dev->struct_mutex); + irq_enabled = dev->irq_enabled; + dev->irq_enabled = 0; + mutex_unlock(&dev->struct_mutex); + + /* + * Wake up any waiters so they don't hang. + */ + if (dev->num_crtcs) { + spin_lock_irqsave(&dev->vbl_lock, irqflags); + for (i = 0; i < dev->num_crtcs; i++) { + DRM_WAKEUP(&dev->vbl_queue[i]); + dev->vblank_enabled[i] = 0; + dev->last_vblank[i] = + dev->driver->get_vblank_counter(dev, i); + } + spin_unlock_irqrestore(&dev->vbl_lock, irqflags); + } + + if (!irq_enabled) + return -EINVAL; + + if (dev->driver->irq_uninstall) + dev->driver->irq_uninstall(dev); + + dispc_free_irq(dev); + + return 0; +} diff --git a/drivers/staging/omapdrm/omap_plane.c b/drivers/staging/omapdrm/omap_plane.c index 2a8e5ba..bb989d7 100644 --- a/drivers/staging/omapdrm/omap_plane.c +++ b/drivers/staging/omapdrm/omap_plane.c @@ -41,12 +41,14 @@ struct callback { struct omap_plane { struct drm_plane base; - struct omap_overlay *ovl; + int id; /* TODO rename omap_plane -> omap_plane_id in omapdss so I can use the enum */ + const char *name; struct omap_overlay_info info; + struct omap_drm_apply apply; /* position/orientation of scanout within the fb: */ struct omap_drm_window win; - + bool enabled; /* last fb that we pinned: */ struct drm_framebuffer *pinned_fb; @@ -54,189 +56,15 @@ struct omap_plane { uint32_t nformats; uint32_t formats[32]; - /* for synchronizing access to unpins fifo */ - struct mutex unpin_mutex; + struct omap_drm_irq error_irq; - /* set of bo's pending unpin until next END_WIN irq */ + /* set of bo's pending unpin until next post_apply() */ DECLARE_KFIFO_PTR(unpin_fifo, struct drm_gem_object *); - int num_unpins, pending_num_unpins; - - /* for deferred unpin when we need to wait for scanout complete irq */ - struct work_struct work; - - /* callback on next endwin irq */ - struct callback endwin; -}; -/* map from ovl->id to the irq we are interested in for scanout-done */ -static const uint32_t id2irq[] = { - [OMAP_DSS_GFX] = DISPC_IRQ_GFX_END_WIN, - [OMAP_DSS_VIDEO1] = DISPC_IRQ_VID1_END_WIN, - [OMAP_DSS_VIDEO2] = DISPC_IRQ_VID2_END_WIN, - [OMAP_DSS_VIDEO3] = DISPC_IRQ_VID3_END_WIN, + // XXX maybe get rid of this and handle vblank in crtc too? + struct callback apply_done_cb; }; -static void dispc_isr(void *arg, uint32_t mask) -{ - struct drm_plane *plane = arg; - struct omap_plane *omap_plane = to_omap_plane(plane); - struct omap_drm_private *priv = plane->dev->dev_private; - - omap_dispc_unregister_isr(dispc_isr, plane, - id2irq[omap_plane->ovl->id]); - - queue_work(priv->wq, &omap_plane->work); -} - -static void unpin_worker(struct work_struct *work) -{ - struct omap_plane *omap_plane = - container_of(work, struct omap_plane, work); - struct callback endwin; - - mutex_lock(&omap_plane->unpin_mutex); - DBG("unpinning %d of %d", omap_plane->num_unpins, - omap_plane->num_unpins + omap_plane->pending_num_unpins); - while (omap_plane->num_unpins > 0) { - struct drm_gem_object *bo = NULL; - int ret = kfifo_get(&omap_plane->unpin_fifo, &bo); - WARN_ON(!ret); - omap_gem_put_paddr(bo); - drm_gem_object_unreference_unlocked(bo); - omap_plane->num_unpins--; - } - endwin = omap_plane->endwin; - omap_plane->endwin.fxn = NULL; - mutex_unlock(&omap_plane->unpin_mutex); - - if (endwin.fxn) - endwin.fxn(endwin.arg); -} - -static void install_irq(struct drm_plane *plane) -{ - struct omap_plane *omap_plane = to_omap_plane(plane); - struct omap_overlay *ovl = omap_plane->ovl; - int ret; - - ret = omap_dispc_register_isr(dispc_isr, plane, id2irq[ovl->id]); - - /* - * omapdss has upper limit on # of registered irq handlers, - * which we shouldn't hit.. but if we do the limit should - * be raised or bad things happen: - */ - WARN_ON(ret == -EBUSY); -} - -/* push changes down to dss2 */ -static int commit(struct drm_plane *plane) -{ - struct drm_device *dev = plane->dev; - struct omap_plane *omap_plane = to_omap_plane(plane); - struct omap_overlay *ovl = omap_plane->ovl; - struct omap_overlay_info *info = &omap_plane->info; - int ret; - - DBG("%s", ovl->name); - DBG("%dx%d -> %dx%d (%d)", info->width, info->height, info->out_width, - info->out_height, info->screen_width); - DBG("%d,%d %08x %08x", info->pos_x, info->pos_y, - info->paddr, info->p_uv_addr); - - /* NOTE: do we want to do this at all here, or just wait - * for dpms(ON) since other CRTC's may not have their mode - * set yet, so fb dimensions may still change.. - */ - ret = ovl->set_overlay_info(ovl, info); - if (ret) { - dev_err(dev->dev, "could not set overlay info\n"); - return ret; - } - - mutex_lock(&omap_plane->unpin_mutex); - omap_plane->num_unpins += omap_plane->pending_num_unpins; - omap_plane->pending_num_unpins = 0; - mutex_unlock(&omap_plane->unpin_mutex); - - /* our encoder doesn't necessarily get a commit() after this, in - * particular in the dpms() and mode_set_base() cases, so force the - * manager to update: - * - * could this be in the encoder somehow? - */ - if (ovl->manager) { - ret = ovl->manager->apply(ovl->manager); - if (ret) { - dev_err(dev->dev, "could not apply settings\n"); - return ret; - } - - /* - * NOTE: really this should be atomic w/ mgr->apply() but - * omapdss does not expose such an API - */ - if (omap_plane->num_unpins > 0) - install_irq(plane); - - } else { - struct omap_drm_private *priv = dev->dev_private; - queue_work(priv->wq, &omap_plane->work); - } - - - if (ovl->is_enabled(ovl)) { - omap_framebuffer_flush(plane->fb, info->pos_x, info->pos_y, - info->out_width, info->out_height); - } - - return 0; -} - -/* when CRTC that we are attached to has potentially changed, this checks - * if we are attached to proper manager, and if necessary updates. - */ -static void update_manager(struct drm_plane *plane) -{ - struct omap_drm_private *priv = plane->dev->dev_private; - struct omap_plane *omap_plane = to_omap_plane(plane); - struct omap_overlay *ovl = omap_plane->ovl; - struct omap_overlay_manager *mgr = NULL; - int i; - - if (plane->crtc) { - for (i = 0; i < priv->num_encoders; i++) { - struct drm_encoder *encoder = priv->encoders[i]; - if (encoder->crtc == plane->crtc) { - mgr = omap_encoder_get_manager(encoder); - break; - } - } - } - - if (ovl->manager != mgr) { - bool enabled = ovl->is_enabled(ovl); - - /* don't switch things around with enabled overlays: */ - if (enabled) - omap_plane_dpms(plane, DRM_MODE_DPMS_OFF); - - if (ovl->manager) { - DBG("disconnecting %s from %s", ovl->name, - ovl->manager->name); - ovl->unset_manager(ovl); - } - - if (mgr) { - DBG("connecting %s to %s", ovl->name, mgr->name); - ovl->set_manager(ovl, mgr); - } - - if (enabled && mgr) - omap_plane_dpms(plane, DRM_MODE_DPMS_ON); - } -} - static void unpin(void *arg, struct drm_gem_object *bo) { struct drm_plane *plane = arg; @@ -244,7 +72,6 @@ static void unpin(void *arg, struct drm_gem_object *bo) if (kfifo_put(&omap_plane->unpin_fifo, (const struct drm_gem_object **)&bo)) { - omap_plane->pending_num_unpins++; /* also hold a ref so it isn't free'd while pinned */ drm_gem_object_reference(bo); } else { @@ -264,13 +91,19 @@ static int update_pin(struct drm_plane *plane, struct drm_framebuffer *fb) DBG("%p -> %p", pinned_fb, fb); - mutex_lock(&omap_plane->unpin_mutex); + if (fb) + drm_framebuffer_reference(fb); + ret = omap_framebuffer_replace(pinned_fb, fb, plane, unpin); - mutex_unlock(&omap_plane->unpin_mutex); + + if (pinned_fb) + drm_framebuffer_unreference(pinned_fb); if (ret) { dev_err(plane->dev->dev, "could not swap %p -> %p\n", omap_plane->pinned_fb, fb); + if (fb) + drm_framebuffer_unreference(fb); omap_plane->pinned_fb = NULL; return ret; } @@ -281,31 +114,90 @@ static int update_pin(struct drm_plane *plane, struct drm_framebuffer *fb) return 0; } -/* update parameters that are dependent on the framebuffer dimensions and - * position within the fb that this plane scans out from. This is called - * when framebuffer or x,y base may have changed. - */ -static void update_scanout(struct drm_plane *plane) +static void omap_plane_pre_apply(struct omap_drm_apply *apply) { - struct omap_plane *omap_plane = to_omap_plane(plane); - struct omap_overlay_info *info = &omap_plane->info; + struct omap_plane *omap_plane = + container_of(apply, struct omap_plane, apply); struct omap_drm_window *win = &omap_plane->win; + struct drm_plane *plane = &omap_plane->base; + struct drm_device *dev = plane->dev; + struct omap_overlay_info *info = &omap_plane->info; + struct drm_crtc *crtc = plane->crtc; + enum omap_channel channel; + bool enabled = omap_plane->enabled && crtc; + bool ilace, replication; int ret; - ret = update_pin(plane, plane->fb); - if (ret) { - dev_err(plane->dev->dev, - "could not pin fb: %d\n", ret); - omap_plane_dpms(plane, DRM_MODE_DPMS_OFF); + DBG("%s, enabled=%d", omap_plane->name, enabled); + + /* if fb has changed, pin new fb: */ + update_pin(plane, enabled ? plane->fb : NULL); + + if (!enabled) { + dispc_ovl_enable(omap_plane->id, false); return; } + channel = omap_crtc_channel(crtc); + + /* update scanout: */ omap_framebuffer_update_scanout(plane->fb, win, info); - DBG("%s: %d,%d: %08x %08x (%d)", omap_plane->ovl->name, - win->src_x, win->src_y, - (u32)info->paddr, (u32)info->p_uv_addr, + DBG("%dx%d -> %dx%d (%d)", info->width, info->height, + info->out_width, info->out_height, info->screen_width); + DBG("%d,%d %08x %08x", info->pos_x, info->pos_y, + info->paddr, info->p_uv_addr); + + /* TODO: */ + ilace = false; + replication = false; + + /* and finally, update omapdss: */ + ret = dispc_ovl_setup(omap_plane->id, info, + replication, omap_crtc_timings(crtc), false); + if (ret) { + dev_err(dev->dev, "dispc_ovl_setup failed: %d\n", ret); + return; + } + + dispc_ovl_enable(omap_plane->id, true); + dispc_ovl_set_channel_out(omap_plane->id, channel); +} + +static void omap_plane_post_apply(struct omap_drm_apply *apply) +{ + struct omap_plane *omap_plane = + container_of(apply, struct omap_plane, apply); + struct drm_plane *plane = &omap_plane->base; + struct omap_overlay_info *info = &omap_plane->info; + struct drm_gem_object *bo = NULL; + struct callback cb; + + cb = omap_plane->apply_done_cb; + omap_plane->apply_done_cb.fxn = NULL; + + while (kfifo_get(&omap_plane->unpin_fifo, &bo)) { + omap_gem_put_paddr(bo); + drm_gem_object_unreference_unlocked(bo); + } + + if (cb.fxn) + cb.fxn(cb.arg); + + if (omap_plane->enabled) { + omap_framebuffer_flush(plane->fb, info->pos_x, info->pos_y, + info->out_width, info->out_height); + } +} + +static int apply(struct drm_plane *plane) +{ + if (plane->crtc) { + struct omap_plane *omap_plane = to_omap_plane(plane); + return omap_crtc_apply(plane->crtc, &omap_plane->apply); + } + return 0; } int omap_plane_mode_set(struct drm_plane *plane, @@ -313,7 +205,8 @@ int omap_plane_mode_set(struct drm_plane *plane, int crtc_x, int crtc_y, unsigned int crtc_w, unsigned int crtc_h, uint32_t src_x, uint32_t src_y, - uint32_t src_w, uint32_t src_h) + uint32_t src_w, uint32_t src_h, + void (*fxn)(void *), void *arg) { struct omap_plane *omap_plane = to_omap_plane(plane); struct omap_drm_window *win = &omap_plane->win; @@ -329,17 +222,20 @@ int omap_plane_mode_set(struct drm_plane *plane, win->src_w = src_w >> 16; win->src_h = src_h >> 16; - /* note: this is done after this fxn returns.. but if we need - * to do a commit/update_scanout, etc before this returns we - * need the current value. - */ + if (fxn) { + /* omap_crtc should ensure that a new page flip + * isn't permitted while there is one pending: + */ + BUG_ON(omap_plane->apply_done_cb.fxn); + + omap_plane->apply_done_cb.fxn = fxn; + omap_plane->apply_done_cb.arg = arg; + } + plane->fb = fb; plane->crtc = crtc; - update_scanout(plane); - update_manager(plane); - - return 0; + return apply(plane); } static int omap_plane_update(struct drm_plane *plane, @@ -349,9 +245,12 @@ static int omap_plane_update(struct drm_plane *plane, uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h) { - omap_plane_mode_set(plane, crtc, fb, crtc_x, crtc_y, crtc_w, crtc_h, - src_x, src_y, src_w, src_h); - return omap_plane_dpms(plane, DRM_MODE_DPMS_ON); + struct omap_plane *omap_plane = to_omap_plane(plane); + omap_plane->enabled = true; + return omap_plane_mode_set(plane, crtc, fb, + crtc_x, crtc_y, crtc_w, crtc_h, + src_x, src_y, src_w, src_h, + NULL, NULL); } static int omap_plane_disable(struct drm_plane *plane) @@ -364,48 +263,32 @@ static int omap_plane_disable(struct drm_plane *plane) static void omap_plane_destroy(struct drm_plane *plane) { struct omap_plane *omap_plane = to_omap_plane(plane); - DBG("%s", omap_plane->ovl->name); + + DBG("%s", omap_plane->name); + + omap_irq_unregister(plane->dev, &omap_plane->error_irq); + omap_plane_disable(plane); drm_plane_cleanup(plane); - WARN_ON(omap_plane->pending_num_unpins + omap_plane->num_unpins > 0); + + WARN_ON(!kfifo_is_empty(&omap_plane->unpin_fifo)); kfifo_free(&omap_plane->unpin_fifo); + kfree(omap_plane); } int omap_plane_dpms(struct drm_plane *plane, int mode) { struct omap_plane *omap_plane = to_omap_plane(plane); - struct omap_overlay *ovl = omap_plane->ovl; - int r; + bool enabled = (mode == DRM_MODE_DPMS_ON); + int ret = 0; - DBG("%s: %d", omap_plane->ovl->name, mode); - - if (mode == DRM_MODE_DPMS_ON) { - update_scanout(plane); - r = commit(plane); - if (!r) - r = ovl->enable(ovl); - } else { - struct omap_drm_private *priv = plane->dev->dev_private; - r = ovl->disable(ovl); - update_pin(plane, NULL); - queue_work(priv->wq, &omap_plane->work); + if (enabled != omap_plane->enabled) { + omap_plane->enabled = enabled; + ret = apply(plane); } - return r; -} - -void omap_plane_on_endwin(struct drm_plane *plane, - void (*fxn)(void *), void *arg) -{ - struct omap_plane *omap_plane = to_omap_plane(plane); - - mutex_lock(&omap_plane->unpin_mutex); - omap_plane->endwin.fxn = fxn; - omap_plane->endwin.arg = arg; - mutex_unlock(&omap_plane->unpin_mutex); - - install_irq(plane); + return ret; } /* helper to install properties which are common to planes and crtcs */ @@ -454,25 +337,13 @@ int omap_plane_set_property(struct drm_plane *plane, int ret = -EINVAL; if (property == priv->rotation_prop) { - struct omap_overlay *ovl = omap_plane->ovl; - - DBG("%s: rotation: %02x", ovl->name, (uint32_t)val); + DBG("%s: rotation: %02x", omap_plane->name, (uint32_t)val); omap_plane->win.rotation = val; - - if (ovl->is_enabled(ovl)) - ret = omap_plane_dpms(plane, DRM_MODE_DPMS_ON); - else - ret = 0; + ret = apply(plane); } else if (property == priv->zorder_prop) { - struct omap_overlay *ovl = omap_plane->ovl; - - DBG("%s: zorder: %d", ovl->name, (uint32_t)val); + DBG("%s: zorder: %02x", omap_plane->name, (uint32_t)val); omap_plane->info.zorder = val; - - if (ovl->is_enabled(ovl)) - ret = omap_plane_dpms(plane, DRM_MODE_DPMS_ON); - else - ret = 0; + ret = apply(plane); } return ret; @@ -485,20 +356,38 @@ static const struct drm_plane_funcs omap_plane_funcs = { .set_property = omap_plane_set_property, }; +static void omap_plane_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus) +{ + struct omap_plane *omap_plane = + container_of(irq, struct omap_plane, error_irq); + DRM_ERROR("%s: errors: %08x\n", omap_plane->name, irqstatus); +} + +static const char *plane_names[] = { + [OMAP_DSS_GFX] = "gfx", + [OMAP_DSS_VIDEO1] = "vid1", + [OMAP_DSS_VIDEO2] = "vid2", + [OMAP_DSS_VIDEO3] = "vid3", +}; + +static const uint32_t error_irqs[] = { + [OMAP_DSS_GFX] = DISPC_IRQ_GFX_FIFO_UNDERFLOW, + [OMAP_DSS_VIDEO1] = DISPC_IRQ_VID1_FIFO_UNDERFLOW, + [OMAP_DSS_VIDEO2] = DISPC_IRQ_VID2_FIFO_UNDERFLOW, + [OMAP_DSS_VIDEO3] = DISPC_IRQ_VID3_FIFO_UNDERFLOW, +}; + /* initialize plane */ struct drm_plane *omap_plane_init(struct drm_device *dev, - struct omap_overlay *ovl, unsigned int possible_crtcs, - bool priv) + int id, bool private_plane) { + struct omap_drm_private *priv = dev->dev_private; struct drm_plane *plane = NULL; struct omap_plane *omap_plane; + struct omap_overlay_info *info; int ret; - DBG("%s: possible_crtcs=%08x, priv=%d", ovl->name, - possible_crtcs, priv); - - /* friendly reminder to update table for future hw: */ - WARN_ON(ovl->id >= ARRAY_SIZE(id2irq)); + DBG("%s: priv=%d", plane_names[id], private_plane); omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL); if (!omap_plane) { @@ -506,47 +395,50 @@ struct drm_plane *omap_plane_init(struct drm_device *dev, goto fail; } - mutex_init(&omap_plane->unpin_mutex); - ret = kfifo_alloc(&omap_plane->unpin_fifo, 16, GFP_KERNEL); if (ret) { dev_err(dev->dev, "could not allocate unpin FIFO\n"); goto fail; } - INIT_WORK(&omap_plane->work, unpin_worker); - omap_plane->nformats = omap_framebuffer_get_formats( omap_plane->formats, ARRAY_SIZE(omap_plane->formats), - ovl->supported_modes); - omap_plane->ovl = ovl; + dss_feat_get_supported_color_modes(id)); + omap_plane->id = id; + omap_plane->name = plane_names[id]; + plane = &omap_plane->base; - drm_plane_init(dev, plane, possible_crtcs, &omap_plane_funcs, - omap_plane->formats, omap_plane->nformats, priv); + omap_plane->apply.pre_apply = omap_plane_pre_apply; + omap_plane->apply.post_apply = omap_plane_post_apply; + + omap_plane->error_irq.irqmask = error_irqs[id]; + omap_plane->error_irq.irq = omap_plane_error_irq; + omap_irq_register(dev, &omap_plane->error_irq); + + drm_plane_init(dev, plane, (1 << priv->num_crtcs) - 1, &omap_plane_funcs, + omap_plane->formats, omap_plane->nformats, private_plane); omap_plane_install_properties(plane, &plane->base); /* get our starting configuration, set defaults for parameters * we don't currently use, etc: */ - ovl->get_overlay_info(ovl, &omap_plane->info); - omap_plane->info.rotation_type = OMAP_DSS_ROT_DMA; - omap_plane->info.rotation = OMAP_DSS_ROT_0; - omap_plane->info.global_alpha = 0xff; - omap_plane->info.mirror = 0; + info = &omap_plane->info; + info->rotation_type = OMAP_DSS_ROT_DMA; + info->rotation = OMAP_DSS_ROT_0; + info->global_alpha = 0xff; + info->mirror = 0; /* Set defaults depending on whether we are a CRTC or overlay * layer. * TODO add ioctl to give userspace an API to change this.. this * will come in a subsequent patch. */ - if (priv) + if (private_plane) omap_plane->info.zorder = 0; else - omap_plane->info.zorder = ovl->id; - - update_manager(plane); + omap_plane->info.zorder = id; return plane; -- cgit v0.10.2 From 412fc87093df7d40d187f6f167524221ae8080b2 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Thu, 20 Dec 2012 08:30:03 -0600 Subject: staging: drm/omap: fix flags in dma buf exporting This patch fixes flags passed to dma buf exporting. Signed-off-by: Seung-Woo Kim Signed-off-by: Rob Clark Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/omapdrm/omap_gem_dmabuf.c b/drivers/staging/omapdrm/omap_gem_dmabuf.c index 9a30206..eabb8b5 100644 --- a/drivers/staging/omapdrm/omap_gem_dmabuf.c +++ b/drivers/staging/omapdrm/omap_gem_dmabuf.c @@ -194,7 +194,7 @@ struct dma_buf_ops omap_dmabuf_ops = { struct dma_buf *omap_gem_prime_export(struct drm_device *dev, struct drm_gem_object *obj, int flags) { - return dma_buf_export(obj, &omap_dmabuf_ops, obj->size, 0600); + return dma_buf_export(obj, &omap_dmabuf_ops, obj->size, flags); } struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev, -- cgit v0.10.2 From 4d27b2ca154eff58f4d7f34e4cd374c1070a56fc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lothar=20Wa=C3=9Fmann?= Date: Tue, 25 Dec 2012 15:58:37 +0100 Subject: staging: drm/imx: check return value of ipu_reset() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ipu_reset() can fail with a timeout. Check the return value and act appropriately. Signed-off-by: Lothar Waßmann Acked-by: Sascha Hauer Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c index 677e665..f7059cd 100644 --- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c +++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c @@ -1104,7 +1104,9 @@ static int ipu_probe(struct platform_device *pdev) if (ret) goto out_failed_irq; - ipu_reset(ipu); + ret = ipu_reset(ipu); + if (ret) + goto out_failed_reset; /* Set MCU_T to divide MCU access window into 2 */ ipu_cm_write(ipu, 0x00400000L | (IPU_MCU_T_DEFAULT << 18), @@ -1129,6 +1131,7 @@ failed_add_clients: ipu_submodules_exit(ipu); failed_submodules_init: ipu_irq_exit(ipu); +out_failed_reset: out_failed_irq: clk_disable_unprepare(ipu->clk); failed_clk_get: -- cgit v0.10.2 From 9a8f3f4490922dd62556a8004aa06bc3f1054894 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lothar=20Wa=C3=9Fmann?= Date: Tue, 25 Dec 2012 15:58:38 +0100 Subject: staging: drm/imx: several bug fixes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit - convert bogus IS_ERR_OR_NULL() to IS_ERR() - fix copy/paste error - check return value of ipu_crtc_init() Signed-off-by: Lothar Waßmann Acked-by: Sascha Hauer Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c index 1892006..4b3a019 100644 --- a/drivers/staging/imx-drm/ipuv3-crtc.c +++ b/drivers/staging/imx-drm/ipuv3-crtc.c @@ -452,7 +452,7 @@ static int ipu_get_resources(struct ipu_crtc *ipu_crtc, int ret; ipu_crtc->ipu_ch = ipu_idmac_get(ipu, pdata->dma[0]); - if (IS_ERR_OR_NULL(ipu_crtc->ipu_ch)) { + if (IS_ERR(ipu_crtc->ipu_ch)) { ret = PTR_ERR(ipu_crtc->ipu_ch); goto err_out; } @@ -472,7 +472,7 @@ static int ipu_get_resources(struct ipu_crtc *ipu_crtc, if (pdata->dp >= 0) { ipu_crtc->dp = ipu_dp_get(ipu, pdata->dp); if (IS_ERR(ipu_crtc->dp)) { - ret = PTR_ERR(ipu_crtc->ipu_ch); + ret = PTR_ERR(ipu_crtc->dp); goto err_out; } } @@ -548,6 +548,8 @@ static int ipu_drm_probe(struct platform_device *pdev) ipu_crtc->dev = &pdev->dev; ret = ipu_crtc_init(ipu_crtc, pdata); + if (ret) + return ret; platform_set_drvdata(pdev, ipu_crtc); -- cgit v0.10.2 From efe57d5977fa62b8fdf3a38c236d1aa5351228be Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lothar=20Wa=C3=9Fmann?= Date: Tue, 25 Dec 2012 15:58:39 +0100 Subject: staging: drm/imx: fix double free bug in error path MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit kfree(imx_drm_encoder) is already being called at the label 'err_register'. Signed-off-by: Lothar Waßmann Acked-by: Sascha Hauer Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c index ecf0f44..cec19f1 100644 --- a/drivers/staging/imx-drm/imx-drm-core.c +++ b/drivers/staging/imx-drm/imx-drm-core.c @@ -584,7 +584,6 @@ int imx_drm_add_encoder(struct drm_encoder *encoder, ret = imx_drm_encoder_register(imx_drm_encoder); if (ret) { - kfree(imx_drm_encoder); ret = -ENOMEM; goto err_register; } -- cgit v0.10.2 From 0d826c3919ceede3c6afc3e87fc7087e0c863e7e Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Wed, 26 Dec 2012 20:51:13 -0600 Subject: staging: rtl8187se: Fix failure to check pci_map_single() Beginning with kernel 3.8, the DMA mapping routines issue a warning for the first call to pci_map_single() that is not checked with a pci_dma_mapping_error() call. Signed-off-by: Larry Finger Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c index ae38475..d10d75e 100644 --- a/drivers/staging/rtl8187se/r8180_core.c +++ b/drivers/staging/rtl8187se/r8180_core.c @@ -937,7 +937,8 @@ short alloc_rx_desc_ring(struct net_device *dev, u16 bufsize, int count) dma_tmp = pci_map_single(pdev, buf, bufsize * sizeof(u8), PCI_DMA_FROMDEVICE); - + if (pci_dma_mapping_error(pdev, dma_tmp)) + return -1; if (-1 == buffer_add(&(priv->rxbuffer), buf, dma_tmp, &(priv->rxbufferhead))) { DMESGE("Unable to allocate mem RX buf"); -- cgit v0.10.2 From 2dcb4a298cd9ffdd5b53437430863c80a868dc90 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Wed, 26 Dec 2012 20:51:12 -0600 Subject: staging: rtl8192e: Fix failure to check pci_map_single() Beginning with kernel 3.8, the DMA mapping routines issue a warning for the first call to pci_map_single() that is not checked with a pci_dma_mapping_error() call. Signed-off-by: Larry Finger Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c index 808aab6..a9d78e9 100644 --- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c +++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c @@ -1183,6 +1183,8 @@ void rtl8192_tx_fill_desc(struct net_device *dev, struct tx_desc *pdesc, pTxFwInfo->TxRate, cb_desc); + if (pci_dma_mapping_error(priv->pdev, mapping)) + RT_TRACE(COMP_ERR, "DMA Mapping error\n");; if (cb_desc->bAMPDUEnable) { pTxFwInfo->AllowAggregation = 1; pTxFwInfo->RxMF = cb_desc->ampdu_factor; @@ -1280,6 +1282,8 @@ void rtl8192_tx_fill_cmd_desc(struct net_device *dev, dma_addr_t mapping = pci_map_single(priv->pdev, skb->data, skb->len, PCI_DMA_TODEVICE); + if (pci_dma_mapping_error(priv->pdev, mapping)) + RT_TRACE(COMP_ERR, "DMA Mapping error\n");; memset(entry, 0, 12); entry->LINIP = cb_desc->bLastIniPkt; entry->FirstSeg = 1; diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c index 1a70f32..4ebf99b 100644 --- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c +++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c @@ -2104,7 +2104,10 @@ static short rtl8192_alloc_rx_desc_ring(struct net_device *dev) skb_tail_pointer_rsl(skb), priv->rxbuffersize, PCI_DMA_FROMDEVICE); - + if (pci_dma_mapping_error(priv->pdev, *mapping)) { + dev_kfree_skb_any(skb); + return -1; + } entry->BufferAddress = cpu_to_le32(*mapping); entry->Length = priv->rxbuffersize; @@ -2397,7 +2400,11 @@ static void rtl8192_rx_normal(struct net_device *dev) skb_tail_pointer_rsl(skb), priv->rxbuffersize, PCI_DMA_FROMDEVICE); - + if (pci_dma_mapping_error(priv->pdev, + *((dma_addr_t *)skb->cb))) { + dev_kfree_skb_any(skb); + return; + } } done: pdesc->BufferAddress = cpu_to_le32(*((dma_addr_t *)skb->cb)); -- cgit v0.10.2 From ae428655b826f2755a8101b27beda42a275ef8ad Mon Sep 17 00:00:00 2001 From: Nickolai Zeldovich Date: Sat, 5 Jan 2013 14:17:45 -0500 Subject: staging: speakup: avoid out-of-range access in synth_init() Check that array index is in-bounds before accessing the synths[] array. Signed-off-by: Nickolai Zeldovich Cc: stable Cc: Samuel Thibault Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c index df95337..b91d22b 100644 --- a/drivers/staging/speakup/synth.c +++ b/drivers/staging/speakup/synth.c @@ -342,7 +342,7 @@ int synth_init(char *synth_name) mutex_lock(&spk_mutex); /* First, check if we already have it loaded. */ - for (i = 0; synths[i] != NULL && i < MAXSYNTHS; i++) + for (i = 0; i < MAXSYNTHS && synths[i] != NULL; i++) if (strcmp(synths[i]->name, synth_name) == 0) synth = synths[i]; -- cgit v0.10.2 From 6102c48bd421074a33e102f2ebda3724e8d275f9 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Mon, 7 Jan 2013 22:03:51 +0100 Subject: staging: speakup: avoid out-of-range access in synth_add() Check that array index is in-bounds before accessing the synths[] array. Signed-off-by: Samuel Thibault Cc: stable Cc: Nickolai Zeldovich Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c index b91d22b..7616f05 100644 --- a/drivers/staging/speakup/synth.c +++ b/drivers/staging/speakup/synth.c @@ -423,7 +423,7 @@ int synth_add(struct spk_synth *in_synth) int i; int status = 0; mutex_lock(&spk_mutex); - for (i = 0; synths[i] != NULL && i < MAXSYNTHS; i++) + for (i = 0; i < MAXSYNTHS && synths[i] != NULL; i++) /* synth_remove() is responsible for rotating the array down */ if (in_synth == synths[i]) { mutex_unlock(&spk_mutex); -- cgit v0.10.2 From 9349f8af28ea89639b3c97da583d60631ed10398 Mon Sep 17 00:00:00 2001 From: Konstantin Khlebnikov Date: Fri, 14 Dec 2012 15:02:44 +0400 Subject: staging: vme_pio2: fix oops on module unloading This patch forbids loading vme_pio2 module without specifing "num_bus" parameter. Otherwise on module unloading pio2_exit() calls vme_unregister_driver() for not registered pio2_driver. Signed-off-by: Konstantin Khlebnikov Cc: Manohar Vanga Acked-by: Martyn Welch Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/vme/devices/vme_pio2_core.c b/drivers/staging/vme/devices/vme_pio2_core.c index 0331178..bf73ba2 100644 --- a/drivers/staging/vme/devices/vme_pio2_core.c +++ b/drivers/staging/vme/devices/vme_pio2_core.c @@ -162,11 +162,9 @@ static struct vme_driver pio2_driver = { static int __init pio2_init(void) { - int retval = 0; - if (bus_num == 0) { pr_err("No cards, skipping registration\n"); - goto err_nocard; + return -ENODEV; } if (bus_num > PIO2_CARDS_MAX) { @@ -176,15 +174,7 @@ static int __init pio2_init(void) } /* Register the PIO2 driver */ - retval = vme_register_driver(&pio2_driver, bus_num); - if (retval != 0) - goto err_reg; - - return retval; - -err_reg: -err_nocard: - return retval; + return vme_register_driver(&pio2_driver, bus_num); } static int pio2_match(struct vme_dev *vdev) -- cgit v0.10.2 From 34b55d8c48f4f76044d8f4d6ec3dc786cf210312 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=89ric=20Piel?= Date: Wed, 19 Dec 2012 13:03:13 +0100 Subject: staging: comedi: fix minimum AO period for NI 625x and NI 628x MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The minimum period was set to 357 ns, while the divider for these boards is 50 ns. This prevented to output at maximum speed as ni_ao_cmdtest() would return 357 but would not accept it. Not sure why it was set to 357 ns (this was done before the git history, which starts 5 years ago). My guess is that it comes from reading the specification stating a 2.8 MHz rate (~ 357 ns). The latest specification states a 2.86 MHz rate (~ 350 ns), which makes a lot more sense. Tested on a pci-6251. Signed-off-by: Éric Piel Acked-By: Ian Abbott Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c index aaac0b2..fd1662b 100644 --- a/drivers/staging/comedi/drivers/ni_pcimio.c +++ b/drivers/staging/comedi/drivers/ni_pcimio.c @@ -963,7 +963,7 @@ static const struct ni_board_struct ni_boards[] = { .ao_range_table = &range_ni_M_625x_ao, .reg_type = ni_reg_625x, .ao_unipolar = 0, - .ao_speed = 357, + .ao_speed = 350, .num_p0_dio_channels = 8, .caldac = {caldac_none}, .has_8255 = 0, @@ -982,7 +982,7 @@ static const struct ni_board_struct ni_boards[] = { .ao_range_table = &range_ni_M_625x_ao, .reg_type = ni_reg_625x, .ao_unipolar = 0, - .ao_speed = 357, + .ao_speed = 350, .num_p0_dio_channels = 8, .caldac = {caldac_none}, .has_8255 = 0, @@ -1001,7 +1001,7 @@ static const struct ni_board_struct ni_boards[] = { .ao_range_table = &range_ni_M_625x_ao, .reg_type = ni_reg_625x, .ao_unipolar = 0, - .ao_speed = 357, + .ao_speed = 350, .num_p0_dio_channels = 8, .caldac = {caldac_none}, .has_8255 = 0, @@ -1037,7 +1037,7 @@ static const struct ni_board_struct ni_boards[] = { .ao_range_table = &range_ni_M_625x_ao, .reg_type = ni_reg_625x, .ao_unipolar = 0, - .ao_speed = 357, + .ao_speed = 350, .num_p0_dio_channels = 32, .caldac = {caldac_none}, .has_8255 = 0, @@ -1056,7 +1056,7 @@ static const struct ni_board_struct ni_boards[] = { .ao_range_table = &range_ni_M_625x_ao, .reg_type = ni_reg_625x, .ao_unipolar = 0, - .ao_speed = 357, + .ao_speed = 350, .num_p0_dio_channels = 32, .caldac = {caldac_none}, .has_8255 = 0, @@ -1092,7 +1092,7 @@ static const struct ni_board_struct ni_boards[] = { .ao_range_table = &range_ni_M_628x_ao, .reg_type = ni_reg_628x, .ao_unipolar = 1, - .ao_speed = 357, + .ao_speed = 350, .num_p0_dio_channels = 8, .caldac = {caldac_none}, .has_8255 = 0, @@ -1111,7 +1111,7 @@ static const struct ni_board_struct ni_boards[] = { .ao_range_table = &range_ni_M_628x_ao, .reg_type = ni_reg_628x, .ao_unipolar = 1, - .ao_speed = 357, + .ao_speed = 350, .num_p0_dio_channels = 8, .caldac = {caldac_none}, .has_8255 = 0, @@ -1147,7 +1147,7 @@ static const struct ni_board_struct ni_boards[] = { .ao_range_table = &range_ni_M_628x_ao, .reg_type = ni_reg_628x, .ao_unipolar = 1, - .ao_speed = 357, + .ao_speed = 350, .num_p0_dio_channels = 32, .caldac = {caldac_none}, .has_8255 = 0, -- cgit v0.10.2 From 7d3135af399e92cf4c9bbc5f86b6c140aab3b88c Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Tue, 4 Dec 2012 15:59:55 +0000 Subject: staging: comedi: prevent auto-unconfig of manually configured devices When a low-level comedi driver auto-configures a device, a `struct comedi_dev_file_info` is allocated (as well as a `struct comedi_device`) by `comedi_alloc_board_minor()`. A pointer to the hardware `struct device` is stored as a cookie in the `struct comedi_dev_file_info`. When the low-level comedi driver auto-unconfigures the device, `comedi_auto_unconfig()` uses the cookie to find the `struct comedi_dev_file_info` so it can detach the comedi device from the driver, clean it up and free it. A problem arises if the user manually unconfigures and reconfigures the comedi device using the `COMEDI_DEVCONFIG` ioctl so that is no longer associated with the original hardware device. The problem is that the cookie is not cleared, so that a call to `comedi_auto_unconfig()` from the low-level driver will still find it, detach it, clean it up and free it. Stop this problem occurring by always clearing the `hardware_device` cookie in the `struct comedi_dev_file_info` whenever the `COMEDI_DEVCONFIG` ioctl call is successful. Signed-off-by: Ian Abbott Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index b7bba17..9b038e4 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -1549,6 +1549,9 @@ static long comedi_unlocked_ioctl(struct file *file, unsigned int cmd, if (cmd == COMEDI_DEVCONFIG) { rc = do_devconfig_ioctl(dev, (struct comedi_devconfig __user *)arg); + if (rc == 0) + /* Evade comedi_auto_unconfig(). */ + dev_file_info->hardware_device = NULL; goto done; } -- cgit v0.10.2 From 34ffb33e09132401872fe79e95c30824ce194d23 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Thu, 3 Jan 2013 12:15:26 +0000 Subject: staging: comedi: Kconfig: COMEDI_NI_AT_A2150 should select COMEDI_FC The 'ni_at_a2150' module links to `cfc_write_to_buffer` in the 'comedi_fc' module, so selecting 'COMEDI_NI_AT_A2150' in the kernel config needs to also select 'COMEDI_FC'. Signed-off-by: Ian Abbott Cc: stable # 3.6+ Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig index 7de2a10..36eec32 100644 --- a/drivers/staging/comedi/Kconfig +++ b/drivers/staging/comedi/Kconfig @@ -444,6 +444,7 @@ config COMEDI_ADQ12B config COMEDI_NI_AT_A2150 tristate "NI AT-A2150 ISA card support" + select COMEDI_FC depends on VIRT_TO_BUS ---help--- Enable support for National Instruments AT-A2150 cards -- cgit v0.10.2 From c0729eeefdcd76db338f635162bf0739fd2c5f6f Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Fri, 4 Jan 2013 11:33:21 +0000 Subject: staging: comedi: comedi_test: fix race when cancelling command MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Éric Piel reported a kernel oops in the "comedi_test" module. It was a NULL pointer dereference within `waveform_ai_interrupt()` (actually a timer function) that sometimes occurred when a running asynchronous command is cancelled (either by the `COMEDI_CANCEL` ioctl or by closing the device file). This seems to be a race between the caller of `waveform_ai_cancel()` which on return from that function goes and tears down the running command, and the timer function which uses the command. In particular, `async->cmd.chanlist` gets freed (and the pointer set to NULL) by `do_become_nonbusy()` in "comedi_fops.c" but a previously scheduled `waveform_ai_interrupt()` timer function will dereference that pointer regardless, leading to the oops. Fix it by replacing the `del_timer()` call in `waveform_ai_cancel()` with `del_timer_sync()`. Signed-off-by: Ian Abbott Reported-by: Éric Piel Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c index fb3d093..01de996 100644 --- a/drivers/staging/comedi/drivers/comedi_test.c +++ b/drivers/staging/comedi/drivers/comedi_test.c @@ -345,7 +345,7 @@ static int waveform_ai_cancel(struct comedi_device *dev, struct waveform_private *devpriv = dev->private; devpriv->timer_running = 0; - del_timer(&devpriv->timer); + del_timer_sync(&devpriv->timer); return 0; } -- cgit v0.10.2 From fe02508529a937faa7f978d10c7d0565f3879cb0 Mon Sep 17 00:00:00 2001 From: Enric Balletbo i Serra Date: Wed, 19 Dec 2012 10:48:46 +0100 Subject: staging: tidspbridge: Fix build breakage due to splitting CM functions. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit ff4ae5d (ARM: OMAP2+: CM/hwmod: split CM functions into OMAP2, OMAP3-specific files) resulted in a build breakage for tidspbridge driver. ... CC [M] drivers/staging/tidspbridge/core/tiomap3430.o staging/tidspbridge/core/tiomap3430.c: In function ‘bridge_brd_start’: staging/tidspbridge/core/tiomap3430.c:550:24: error: ‘OMAP3430_CM_AUTOIDLE_PLL’ undeclared (first use in this function) make[3]: *** [drivers/staging/tidspbridge/core/tiomap3430.o] Error 1 ... Fix this by including the appropriate header file. Signed-off-by: Enric Balletbo i Serra Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/tidspbridge/core/_tiomap.h b/drivers/staging/tidspbridge/core/_tiomap.h index 543a127..b783bfa 100644 --- a/drivers/staging/tidspbridge/core/_tiomap.h +++ b/drivers/staging/tidspbridge/core/_tiomap.h @@ -31,7 +31,7 @@ * driver should read or write to PRM/CM registers directly; they * should rely on OMAP core code to do this. */ -#include +#include #include #include #include -- cgit v0.10.2 From e16a922a27ec352537a8027cadc32dc156534ca5 Mon Sep 17 00:00:00 2001 From: Omar Ramirez Luna Date: Mon, 24 Dec 2012 08:10:25 -0600 Subject: staging: tidspbridge: use prepare/unprepare on dsp clocks This solves runtime failures while trying to enable WDT3 related functionality on firmware load, however it does affect other clocks controlled by the driver. Seen on 3.8-rc1. CCF provides clk_prepare and clk_unprepare for enable and disable operations respectively, this needs to be called in the correct order while handling clocks. Code path to enable/disable dsp clocks can still be reached from an atomic context, hence we can't use clk_prepare_enable and clk_disable_unprepare yet. Signed-off-by: Omar Ramirez Luna Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/tidspbridge/core/dsp-clock.c b/drivers/staging/tidspbridge/core/dsp-clock.c index b647207..2f084e18 100644 --- a/drivers/staging/tidspbridge/core/dsp-clock.c +++ b/drivers/staging/tidspbridge/core/dsp-clock.c @@ -121,9 +121,13 @@ void dsp_clk_exit(void) for (i = 0; i < DM_TIMER_CLOCKS; i++) omap_dm_timer_free(timer[i]); + clk_unprepare(iva2_clk); clk_put(iva2_clk); + clk_unprepare(ssi.sst_fck); clk_put(ssi.sst_fck); + clk_unprepare(ssi.ssr_fck); clk_put(ssi.ssr_fck); + clk_unprepare(ssi.ick); clk_put(ssi.ick); } @@ -145,14 +149,21 @@ void dsp_clk_init(void) iva2_clk = clk_get(&dspbridge_device.dev, "iva2_ck"); if (IS_ERR(iva2_clk)) dev_err(bridge, "failed to get iva2 clock %p\n", iva2_clk); + else + clk_prepare(iva2_clk); ssi.sst_fck = clk_get(&dspbridge_device.dev, "ssi_sst_fck"); ssi.ssr_fck = clk_get(&dspbridge_device.dev, "ssi_ssr_fck"); ssi.ick = clk_get(&dspbridge_device.dev, "ssi_ick"); - if (IS_ERR(ssi.sst_fck) || IS_ERR(ssi.ssr_fck) || IS_ERR(ssi.ick)) + if (IS_ERR(ssi.sst_fck) || IS_ERR(ssi.ssr_fck) || IS_ERR(ssi.ick)) { dev_err(bridge, "failed to get ssi: sst %p, ssr %p, ick %p\n", ssi.sst_fck, ssi.ssr_fck, ssi.ick); + } else { + clk_prepare(ssi.sst_fck); + clk_prepare(ssi.ssr_fck); + clk_prepare(ssi.ick); + } } /** diff --git a/drivers/staging/tidspbridge/core/wdt.c b/drivers/staging/tidspbridge/core/wdt.c index 1dce36f..7ff0e6c 100644 --- a/drivers/staging/tidspbridge/core/wdt.c +++ b/drivers/staging/tidspbridge/core/wdt.c @@ -63,11 +63,15 @@ int dsp_wdt_init(void) dsp_wdt.fclk = clk_get(NULL, "wdt3_fck"); if (!IS_ERR(dsp_wdt.fclk)) { + clk_prepare(dsp_wdt.fclk); + dsp_wdt.iclk = clk_get(NULL, "wdt3_ick"); if (IS_ERR(dsp_wdt.iclk)) { clk_put(dsp_wdt.fclk); dsp_wdt.fclk = NULL; ret = -EFAULT; + } else { + clk_prepare(dsp_wdt.iclk); } } else ret = -EFAULT; @@ -95,10 +99,14 @@ void dsp_wdt_exit(void) free_irq(INT_34XX_WDT3_IRQ, &dsp_wdt); tasklet_kill(&dsp_wdt.wdt3_tasklet); - if (dsp_wdt.fclk) + if (dsp_wdt.fclk) { + clk_unprepare(dsp_wdt.fclk); clk_put(dsp_wdt.fclk); - if (dsp_wdt.iclk) + } + if (dsp_wdt.iclk) { + clk_unprepare(dsp_wdt.iclk); clk_put(dsp_wdt.iclk); + } dsp_wdt.fclk = NULL; dsp_wdt.iclk = NULL; -- cgit v0.10.2 From 5a334c082fc91f0c342ba9c111b77cafb5266654 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Thu, 20 Dec 2012 17:30:52 +0100 Subject: s390/debug: Fix s390dbf lockdep problem in debug_(un)register_view() The debug_register/unregister_view() functions call debugfs_remove() while holding the debug_info spinlock. Because debugfs_remove() takes a mutex and therefore can sleep this is not allowed. To fix the problem we give up the debug_info lock before calling debugfs_remove(). The following shows the lockdep message: [ INFO: possible circular locking dependency detected ] ------------------------------------------------------- rmmod/4379 is trying to acquire lock: (&sb->s_type->i_mutex_key#2){+.+.+.}, at: [<00000000003acae2>] debugfs_remove+0x5e/0xa but task is already holding lock: (&(&rc->lock)->rlock){-.-...}, at: [<000000000010a5ae>] debug_unregister_view+0x3a/0xd which lock already depends on the new lock. -> #0 (&sb->s_type->i_mutex_key#2){+.+.+.}: [<00000000001b1644>] validate_chain+0x880/0x1154 [<00000000001b4d6c>] __lock_acquire+0x414/0xc44 [<00000000001b5c16>] lock_acquire+0xbe/0x178 [<0000000000614016>] mutex_lock_nested+0x66/0x36c [<00000000003acae2>] debugfs_remove+0x5e/0xac [<000000000010a620>] debug_unregister_view+0xac/0xd0 [<000003ff8002f140>] qeth_core_exit+0x48/0xf08 [qeth] [<00000000001c35a4>] SyS_delete_module+0x1a4/0x260 [<0000000000618134>] sysc_noemu+0x22/0x28 [<000003fffd4704da>] 0x3fffd4704da Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c index ba500d8..4e8215e 100644 --- a/arch/s390/kernel/debug.c +++ b/arch/s390/kernel/debug.c @@ -1127,13 +1127,14 @@ debug_register_view(debug_info_t * id, struct debug_view *view) if (i == DEBUG_MAX_VIEWS) { pr_err("Registering view %s/%s would exceed the maximum " "number of views %i\n", id->name, view->name, i); - debugfs_remove(pde); rc = -1; } else { id->views[i] = view; id->debugfs_entries[i] = pde; } spin_unlock_irqrestore(&id->lock, flags); + if (rc) + debugfs_remove(pde); out: return rc; } @@ -1146,9 +1147,9 @@ EXPORT_SYMBOL(debug_register_view); int debug_unregister_view(debug_info_t * id, struct debug_view *view) { - int rc = 0; - int i; + struct dentry *dentry = NULL; unsigned long flags; + int i, rc = 0; if (!id) goto out; @@ -1160,10 +1161,12 @@ debug_unregister_view(debug_info_t * id, struct debug_view *view) if (i == DEBUG_MAX_VIEWS) rc = -1; else { - debugfs_remove(id->debugfs_entries[i]); + dentry = id->debugfs_entries[i]; id->views[i] = NULL; + id->debugfs_entries[i] = NULL; } spin_unlock_irqrestore(&id->lock, flags); + debugfs_remove(dentry); out: return rc; } -- cgit v0.10.2 From eba61970b68f9f7680d6c1c269633dcd005b3bd2 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 27 Dec 2012 14:03:36 +0100 Subject: s390/smp: fix section mismatch for smp_add_present_cpu() Fixes this section mismatch: WARNING: vmlinux.o(.text+0x145e4): Section mismatch in reference from the function smp_add_present_cpu() to the function .cpuinit.text:register_cpu() The function smp_add_present_cpu() references the function __cpuinit register_cpu(). This is often because smp_add_present_cpu lacks a __cpuinit annotation or the annotation of register_cpu is wrong. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 0b45baa..82664a3 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -623,9 +623,10 @@ static struct sclp_cpu_info *smp_get_cpu_info(void) return info; } -static int smp_add_present_cpu(int cpu); +static int __cpuinit smp_add_present_cpu(int cpu); -static int __smp_rescan_cpus(struct sclp_cpu_info *info, int sysfs_add) +static int __cpuinit __smp_rescan_cpus(struct sclp_cpu_info *info, + int sysfs_add) { struct pcpu *pcpu; cpumask_t avail; @@ -985,7 +986,7 @@ static int __cpuinit smp_cpu_notify(struct notifier_block *self, return notifier_from_errno(err); } -static int smp_add_present_cpu(int cpu) +static int __cpuinit smp_add_present_cpu(int cpu) { struct cpu *c = &pcpu_devices[cpu].cpu; struct device *s = &c->dev; -- cgit v0.10.2 From b2034e1934c4596ecbad798d0db0fb60c7f5628b Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Fri, 28 Dec 2012 13:15:36 +0100 Subject: s390/pci: remove dead code MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Get rid of these: arch/s390/pci/pci_dma.c:16:29: warning: ‘zpci_ioat_dt’ defined but not used [-Wunused-variable] arch/s390/pci/pci.c:164:12: warning: ‘zpci_store_fib’ defined but not used [-Wunused-function] Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index ff49427..e985744 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -160,35 +160,6 @@ int pci_proc_domain(struct pci_bus *bus) } EXPORT_SYMBOL_GPL(pci_proc_domain); -/* Store PCI function information block */ -static int zpci_store_fib(struct zpci_dev *zdev, u8 *fc) -{ - struct zpci_fib *fib; - u8 status, cc; - - fib = (void *) get_zeroed_page(GFP_KERNEL); - if (!fib) - return -ENOMEM; - - do { - cc = __stpcifc(zdev->fh, 0, fib, &status); - if (cc == 2) { - msleep(ZPCI_INSN_BUSY_DELAY); - memset(fib, 0, PAGE_SIZE); - } - } while (cc == 2); - - if (cc) - pr_err_once("%s: cc: %u status: %u\n", - __func__, cc, status); - - /* Return PCI function controls */ - *fc = fib->fc; - - free_page((unsigned long) fib); - return (cc) ? -EIO : 0; -} - /* Modify PCI: Register adapter interruptions */ static int zpci_register_airq(struct zpci_dev *zdev, unsigned int aisb, u64 aibv) diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c index 6138468..a547419 100644 --- a/arch/s390/pci/pci_dma.c +++ b/arch/s390/pci/pci_dma.c @@ -13,8 +13,6 @@ #include #include -static enum zpci_ioat_dtype zpci_ioat_dt = ZPCI_IOTA_RTTO; - static struct kmem_cache *dma_region_table_cache; static struct kmem_cache *dma_page_table_cache; -- cgit v0.10.2 From 1427add02c90d60692e12ad88ade1e86c7444b38 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 27 Dec 2012 13:03:15 +0100 Subject: s390/syscalls: wire up finit_module syscall Signed-off-by: Heiko Carstens diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h index 63e6078..864f693 100644 --- a/arch/s390/include/uapi/asm/unistd.h +++ b/arch/s390/include/uapi/asm/unistd.h @@ -279,7 +279,8 @@ #define __NR_process_vm_writev 341 #define __NR_s390_runtime_instr 342 #define __NR_kcmp 343 -#define NR_syscalls 344 +#define __NR_finit_module 344 +#define NR_syscalls 345 /* * There are some system calls that are not present on 64 bit, some diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 827e094..9b9a805 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1659,3 +1659,9 @@ ENTRY(sys_kcmp_wrapper) llgfr %r5,%r5 # unsigned long llgfr %r6,%r6 # unsigned long jg sys_kcmp + +ENTRY(sys_finit_module_wrapper) + lgfr %r2,%r2 # int + llgtr %r3,%r3 # const char __user * + lgfr %r4,%r4 # int + jg sys_finit_module diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 4817485..6a6c61f 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -352,3 +352,4 @@ SYSCALL(sys_process_vm_readv,sys_process_vm_readv,compat_sys_process_vm_readv_wr SYSCALL(sys_process_vm_writev,sys_process_vm_writev,compat_sys_process_vm_writev_wrapper) SYSCALL(sys_ni_syscall,sys_s390_runtime_instr,sys_s390_runtime_instr_wrapper) SYSCALL(sys_kcmp,sys_kcmp,sys_kcmp_wrapper) +SYSCALL(sys_finit_module,sys_finit_module,sys_finit_module_wrapper) -- cgit v0.10.2 From add9bde216fefe1b65b41f7c0948cef48aa98c14 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 2 Jan 2013 14:01:23 +0100 Subject: s390/irq: enable irq sum accounting for /proc/stat again For more than two years, since f2c66cd8eeddedb440f33bc0f5cec1ed7ae376cb "/proc/stat: scalability of irq num per cpu" the output of /proc/stat is broken. The first field in the "intr" line should contain the sum of all interrupts, however since the above mentioned change it is always zero. The reason for that is that a per cpu irq sum variable had been introduced which got incremented when calling kstat_incr_irqs_this_cpu(). However on s390 we directly incremented only the per cpu per irq counter by accessing the array element via kstat_cpu(smp_processor_id()).irqs[...]. So fix this and use the kstat_incr_irqs_this_cpu() wrapper which increments both: the per cpu per irq counter and the per cpu irq sum counter. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index bf24293..a8f8ab0 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -222,7 +222,7 @@ void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code, /* Serve timer interrupts first. */ clock_comparator_work(); } - kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++; + kstat_incr_irqs_this_cpu(EXTERNAL_INTERRUPT, NULL); if (ext_code.code != 0x1004) __get_cpu_var(s390_idle).nohz_delay = 1; diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 8e927b9..ebf61d5 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -611,7 +611,7 @@ void __irq_entry do_IRQ(struct pt_regs *regs) tpi_info = (struct tpi_info *)&S390_lowcore.subchannel_id; irb = (struct irb *)&S390_lowcore.irb; do { - kstat_cpu(smp_processor_id()).irqs[IO_INTERRUPT]++; + kstat_incr_irqs_this_cpu(IO_INTERRUPT, NULL); if (tpi_info->adapter_IO) { do_adapter_IO(tpi_info->isc); continue; -- cgit v0.10.2 From 420f42ecf48a926ba775ec7d7294425f004b6ade Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 2 Jan 2013 15:18:18 +0100 Subject: s390/irq: remove split irq fields from /proc/stat Now that irq sum accounting for /proc/stat's "intr" line works again we have the oddity that the sum field (first field) contains only the sum of the second (external irqs) and third field (I/O interrupts). The reason for that is that these two fields are already sums of all other fields. So if we would sum up everything we would count every interrupt twice. This is broken since the split interrupt accounting was merged two years ago: 052ff461c8427629aee887ccc27478fc7373237c "[S390] irq: have detailed statistics for interrupt types". To fix this remove the split interrupt fields from /proc/stat's "intr" line again and only have them in /proc/interrupts. This restores the old behaviour, seems to be the only sane fix and mimics a behaviour from other architectures where /proc/interrupts also contains more than /proc/stat's "intr" line does. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index e6972f8..c98dcac 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -2,43 +2,60 @@ #define _ASM_IRQ_H #include +#include +#include #include -enum interruption_class { +enum interruption_main_class { EXTERNAL_INTERRUPT, IO_INTERRUPT, - EXTINT_CLK, - EXTINT_EXC, - EXTINT_EMS, - EXTINT_TMR, - EXTINT_TLA, - EXTINT_PFL, - EXTINT_DSD, - EXTINT_VRT, - EXTINT_SCP, - EXTINT_IUC, - EXTINT_CMS, - EXTINT_CMC, - EXTINT_CMR, - IOINT_CIO, - IOINT_QAI, - IOINT_DAS, - IOINT_C15, - IOINT_C70, - IOINT_TAP, - IOINT_VMR, - IOINT_LCS, - IOINT_CLW, - IOINT_CTC, - IOINT_APB, - IOINT_ADM, - IOINT_CSC, - IOINT_PCI, - IOINT_MSI, + NR_IRQS +}; + +enum interruption_class { + IRQEXT_CLK, + IRQEXT_EXC, + IRQEXT_EMS, + IRQEXT_TMR, + IRQEXT_TLA, + IRQEXT_PFL, + IRQEXT_DSD, + IRQEXT_VRT, + IRQEXT_SCP, + IRQEXT_IUC, + IRQEXT_CMS, + IRQEXT_CMC, + IRQEXT_CMR, + IRQIO_CIO, + IRQIO_QAI, + IRQIO_DAS, + IRQIO_C15, + IRQIO_C70, + IRQIO_TAP, + IRQIO_VMR, + IRQIO_LCS, + IRQIO_CLW, + IRQIO_CTC, + IRQIO_APB, + IRQIO_ADM, + IRQIO_CSC, + IRQIO_PCI, + IRQIO_MSI, NMI_NMI, - NR_IRQS, + NR_ARCH_IRQS }; +struct irq_stat { + unsigned int irqs[NR_ARCH_IRQS]; +}; + +DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat); + +static __always_inline void inc_irq_stat(enum interruption_class irq) +{ + __get_cpu_var(irq_stat).irqs[irq]++; +} + struct ext_code { unsigned short subcode; unsigned short code; diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index a8f8ab0..5f54624 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -24,42 +24,63 @@ #include #include "entry.h" +DEFINE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat); +EXPORT_PER_CPU_SYMBOL_GPL(irq_stat); + struct irq_class { char *name; char *desc; }; -static const struct irq_class intrclass_names[] = { +/* + * The list of "main" irq classes on s390. This is the list of interrrupts + * that appear both in /proc/stat ("intr" line) and /proc/interrupts. + * Historically only external and I/O interrupts have been part of /proc/stat. + * We can't add the split external and I/O sub classes since the first field + * in the "intr" line in /proc/stat is supposed to be the sum of all other + * fields. + * Since the external and I/O interrupt fields are already sums we would end + * up with having a sum which accounts each interrupt twice. + */ +static const struct irq_class irqclass_main_desc[NR_IRQS] = { [EXTERNAL_INTERRUPT] = {.name = "EXT"}, - [IO_INTERRUPT] = {.name = "I/O"}, - [EXTINT_CLK] = {.name = "CLK", .desc = "[EXT] Clock Comparator"}, - [EXTINT_EXC] = {.name = "EXC", .desc = "[EXT] External Call"}, - [EXTINT_EMS] = {.name = "EMS", .desc = "[EXT] Emergency Signal"}, - [EXTINT_TMR] = {.name = "TMR", .desc = "[EXT] CPU Timer"}, - [EXTINT_TLA] = {.name = "TAL", .desc = "[EXT] Timing Alert"}, - [EXTINT_PFL] = {.name = "PFL", .desc = "[EXT] Pseudo Page Fault"}, - [EXTINT_DSD] = {.name = "DSD", .desc = "[EXT] DASD Diag"}, - [EXTINT_VRT] = {.name = "VRT", .desc = "[EXT] Virtio"}, - [EXTINT_SCP] = {.name = "SCP", .desc = "[EXT] Service Call"}, - [EXTINT_IUC] = {.name = "IUC", .desc = "[EXT] IUCV"}, - [EXTINT_CMS] = {.name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling"}, - [EXTINT_CMC] = {.name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"}, - [EXTINT_CMR] = {.name = "CMR", .desc = "[EXT] CPU-Measurement: RI"}, - [IOINT_CIO] = {.name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt"}, - [IOINT_QAI] = {.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt"}, - [IOINT_DAS] = {.name = "DAS", .desc = "[I/O] DASD"}, - [IOINT_C15] = {.name = "C15", .desc = "[I/O] 3215"}, - [IOINT_C70] = {.name = "C70", .desc = "[I/O] 3270"}, - [IOINT_TAP] = {.name = "TAP", .desc = "[I/O] Tape"}, - [IOINT_VMR] = {.name = "VMR", .desc = "[I/O] Unit Record Devices"}, - [IOINT_LCS] = {.name = "LCS", .desc = "[I/O] LCS"}, - [IOINT_CLW] = {.name = "CLW", .desc = "[I/O] CLAW"}, - [IOINT_CTC] = {.name = "CTC", .desc = "[I/O] CTC"}, - [IOINT_APB] = {.name = "APB", .desc = "[I/O] AP Bus"}, - [IOINT_ADM] = {.name = "ADM", .desc = "[I/O] EADM Subchannel"}, - [IOINT_CSC] = {.name = "CSC", .desc = "[I/O] CHSC Subchannel"}, - [IOINT_PCI] = {.name = "PCI", .desc = "[I/O] PCI Interrupt" }, - [IOINT_MSI] = {.name = "MSI", .desc = "[I/O] MSI Interrupt" }, + [IO_INTERRUPT] = {.name = "I/O"} +}; + +/* + * The list of split external and I/O interrupts that appear only in + * /proc/interrupts. + * In addition this list contains non external / I/O events like NMIs. + */ +static const struct irq_class irqclass_sub_desc[NR_ARCH_IRQS] = { + [IRQEXT_CLK] = {.name = "CLK", .desc = "[EXT] Clock Comparator"}, + [IRQEXT_EXC] = {.name = "EXC", .desc = "[EXT] External Call"}, + [IRQEXT_EMS] = {.name = "EMS", .desc = "[EXT] Emergency Signal"}, + [IRQEXT_TMR] = {.name = "TMR", .desc = "[EXT] CPU Timer"}, + [IRQEXT_TLA] = {.name = "TAL", .desc = "[EXT] Timing Alert"}, + [IRQEXT_PFL] = {.name = "PFL", .desc = "[EXT] Pseudo Page Fault"}, + [IRQEXT_DSD] = {.name = "DSD", .desc = "[EXT] DASD Diag"}, + [IRQEXT_VRT] = {.name = "VRT", .desc = "[EXT] Virtio"}, + [IRQEXT_SCP] = {.name = "SCP", .desc = "[EXT] Service Call"}, + [IRQEXT_IUC] = {.name = "IUC", .desc = "[EXT] IUCV"}, + [IRQEXT_CMS] = {.name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling"}, + [IRQEXT_CMC] = {.name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"}, + [IRQEXT_CMR] = {.name = "CMR", .desc = "[EXT] CPU-Measurement: RI"}, + [IRQIO_CIO] = {.name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt"}, + [IRQIO_QAI] = {.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt"}, + [IRQIO_DAS] = {.name = "DAS", .desc = "[I/O] DASD"}, + [IRQIO_C15] = {.name = "C15", .desc = "[I/O] 3215"}, + [IRQIO_C70] = {.name = "C70", .desc = "[I/O] 3270"}, + [IRQIO_TAP] = {.name = "TAP", .desc = "[I/O] Tape"}, + [IRQIO_VMR] = {.name = "VMR", .desc = "[I/O] Unit Record Devices"}, + [IRQIO_LCS] = {.name = "LCS", .desc = "[I/O] LCS"}, + [IRQIO_CLW] = {.name = "CLW", .desc = "[I/O] CLAW"}, + [IRQIO_CTC] = {.name = "CTC", .desc = "[I/O] CTC"}, + [IRQIO_APB] = {.name = "APB", .desc = "[I/O] AP Bus"}, + [IRQIO_ADM] = {.name = "ADM", .desc = "[I/O] EADM Subchannel"}, + [IRQIO_CSC] = {.name = "CSC", .desc = "[I/O] CHSC Subchannel"}, + [IRQIO_PCI] = {.name = "PCI", .desc = "[I/O] PCI Interrupt" }, + [IRQIO_MSI] = {.name = "MSI", .desc = "[I/O] MSI Interrupt" }, [NMI_NMI] = {.name = "NMI", .desc = "[NMI] Machine Check"}, }; @@ -68,30 +89,34 @@ static const struct irq_class intrclass_names[] = { */ int show_interrupts(struct seq_file *p, void *v) { - int i = *(loff_t *) v, j; + int irq = *(loff_t *) v; + int cpu; get_online_cpus(); - if (i == 0) { + if (irq == 0) { seq_puts(p, " "); - for_each_online_cpu(j) - seq_printf(p, "CPU%d ",j); + for_each_online_cpu(cpu) + seq_printf(p, "CPU%d ", cpu); seq_putc(p, '\n'); } - - if (i < NR_IRQS) { - seq_printf(p, "%s: ", intrclass_names[i].name); -#ifndef CONFIG_SMP - seq_printf(p, "%10u ", kstat_irqs(i)); -#else - for_each_online_cpu(j) - seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]); -#endif - if (intrclass_names[i].desc) - seq_printf(p, " %s", intrclass_names[i].desc); - seq_putc(p, '\n'); - } + if (irq < NR_IRQS) { + seq_printf(p, "%s: ", irqclass_main_desc[irq].name); + for_each_online_cpu(cpu) + seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[irq]); + seq_putc(p, '\n'); + goto skip_arch_irqs; + } + for (irq = 0; irq < NR_ARCH_IRQS; irq++) { + seq_printf(p, "%s: ", irqclass_sub_desc[irq].name); + for_each_online_cpu(cpu) + seq_printf(p, "%10u ", per_cpu(irq_stat, cpu).irqs[irq]); + if (irqclass_sub_desc[irq].desc) + seq_printf(p, " %s", irqclass_sub_desc[irq].desc); + seq_putc(p, '\n'); + } +skip_arch_irqs: put_online_cpus(); - return 0; + return 0; } /* diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c index a6daa5c..7918fbe 100644 --- a/arch/s390/kernel/nmi.c +++ b/arch/s390/kernel/nmi.c @@ -254,7 +254,7 @@ void notrace s390_do_machine_check(struct pt_regs *regs) int umode; nmi_enter(); - kstat_cpu(smp_processor_id()).irqs[NMI_NMI]++; + inc_irq_stat(NMI_NMI); mci = (struct mci *) &S390_lowcore.mcck_interruption_code; mcck = &__get_cpu_var(cpu_mcck); umode = user_mode(regs); diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c index c4e7269..86ec744 100644 --- a/arch/s390/kernel/perf_cpum_cf.c +++ b/arch/s390/kernel/perf_cpum_cf.c @@ -229,7 +229,7 @@ static void cpumf_measurement_alert(struct ext_code ext_code, if (!(alert & CPU_MF_INT_CF_MASK)) return; - kstat_cpu(smp_processor_id()).irqs[EXTINT_CMC]++; + inc_irq_stat(IRQEXT_CMC); cpuhw = &__get_cpu_var(cpu_hw_events); /* Measurement alerts are shared and might happen when the PMU diff --git a/arch/s390/kernel/runtime_instr.c b/arch/s390/kernel/runtime_instr.c index 61066f6..077a993 100644 --- a/arch/s390/kernel/runtime_instr.c +++ b/arch/s390/kernel/runtime_instr.c @@ -71,7 +71,7 @@ static void runtime_instr_int_handler(struct ext_code ext_code, if (!(param32 & CPU_MF_INT_RI_MASK)) return; - kstat_cpu(smp_processor_id()).irqs[EXTINT_CMR]++; + inc_irq_stat(IRQEXT_CMR); if (!current->thread.ri_cb) return; diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 82664a3..4a36d5b 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -433,9 +433,9 @@ static void do_ext_call_interrupt(struct ext_code ext_code, cpu = smp_processor_id(); if (ext_code.code == 0x1202) - kstat_cpu(cpu).irqs[EXTINT_EXC]++; + inc_irq_stat(IRQEXT_EXC); else - kstat_cpu(cpu).irqs[EXTINT_EMS]++; + inc_irq_stat(IRQEXT_EMS); /* * handle bit signal external calls */ diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 7fcd690..aff0e35 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -168,7 +168,7 @@ static void clock_comparator_interrupt(struct ext_code ext_code, unsigned int param32, unsigned long param64) { - kstat_cpu(smp_processor_id()).irqs[EXTINT_CLK]++; + inc_irq_stat(IRQEXT_CLK); if (S390_lowcore.clock_comparator == -1ULL) set_clock_comparator(S390_lowcore.clock_comparator); } @@ -179,7 +179,7 @@ static void stp_timing_alert(struct stp_irq_parm *); static void timing_alert_interrupt(struct ext_code ext_code, unsigned int param32, unsigned long param64) { - kstat_cpu(smp_processor_id()).irqs[EXTINT_TLA]++; + inc_irq_stat(IRQEXT_TLA); if (param32 & 0x00c40000) etr_timing_alert((struct etr_irq_parm *) ¶m32); if (param32 & 0x00038000) diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 42601d6..2fb9e63 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -569,7 +569,7 @@ static void pfault_interrupt(struct ext_code ext_code, subcode = ext_code.subcode; if ((subcode & 0xff00) != __SUBCODE_MASK) return; - kstat_cpu(smp_processor_id()).irqs[EXTINT_PFL]++; + inc_irq_stat(IRQEXT_PFL); /* Get the token (= pid of the affected task). */ pid = sizeof(void *) == 4 ? param32 : param64; rcu_read_lock(); diff --git a/arch/s390/oprofile/hwsampler.c b/arch/s390/oprofile/hwsampler.c index 0cb385d..b5b2916 100644 --- a/arch/s390/oprofile/hwsampler.c +++ b/arch/s390/oprofile/hwsampler.c @@ -233,7 +233,7 @@ static void hws_ext_handler(struct ext_code ext_code, if (!(param32 & CPU_MF_INT_SF_MASK)) return; - kstat_cpu(smp_processor_id()).irqs[EXTINT_CMS]++; + inc_irq_stat(IRQEXT_CMS); atomic_xchg(&cb->ext_params, atomic_read(&cb->ext_params) | param32); if (hws_wq) diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index e985744..60e0372 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -440,7 +440,7 @@ static void zpci_irq_handler(void *dont, void *need) int rescan = 0, max = aisb_max; struct zdev_irq_map *imap; - kstat_cpu(smp_processor_id()).irqs[IOINT_PCI]++; + inc_irq_stat(IRQIO_PCI); sbit = start; scan: @@ -452,7 +452,7 @@ scan: /* find vector bit */ imap = bucket->imap[sbit]; for_each_set_bit_left(mbit, &imap->aibv, imap->msi_vecs) { - kstat_cpu(smp_processor_id()).irqs[IOINT_MSI]++; + inc_irq_stat(IRQIO_MSI); clear_bit(63 - mbit, &imap->aibv); spin_lock(&imap->lock); diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c index 9bd5da3..704488d 100644 --- a/drivers/s390/block/dasd_diag.c +++ b/drivers/s390/block/dasd_diag.c @@ -248,7 +248,7 @@ static void dasd_ext_handler(struct ext_code ext_code, default: return; } - kstat_cpu(smp_processor_id()).irqs[EXTINT_DSD]++; + inc_irq_stat(IRQEXT_DSD); if (!ip) { /* no intparm: unsolicited interrupt */ DBF_EVENT(DBF_NOTICE, "%s", "caught unsolicited " "interrupt"); diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 806fe91..e37bc16 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -4274,7 +4274,7 @@ static struct ccw_driver dasd_eckd_driver = { .thaw = dasd_generic_restore_device, .restore = dasd_generic_restore_device, .uc_handler = dasd_generic_uc_handler, - .int_class = IOINT_DAS, + .int_class = IRQIO_DAS, }; /* diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index eb74850..4146985 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -78,7 +78,7 @@ static struct ccw_driver dasd_fba_driver = { .freeze = dasd_generic_pm_freeze, .thaw = dasd_generic_restore_device, .restore = dasd_generic_restore_device, - .int_class = IOINT_DAS, + .int_class = IRQIO_DAS, }; static void diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index 4008450..1c1dae0 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -805,7 +805,7 @@ static struct ccw_driver raw3215_ccw_driver = { .freeze = &raw3215_pm_stop, .thaw = &raw3215_pm_start, .restore = &raw3215_pm_start, - .int_class = IOINT_C15, + .int_class = IRQIO_C15, }; #ifdef CONFIG_TN3215_CONSOLE diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c index f3b8bb8..9a6c140 100644 --- a/drivers/s390/char/raw3270.c +++ b/drivers/s390/char/raw3270.c @@ -1396,7 +1396,7 @@ static struct ccw_driver raw3270_ccw_driver = { .freeze = &raw3270_pm_stop, .thaw = &raw3270_pm_start, .restore = &raw3270_pm_start, - .int_class = IOINT_C70, + .int_class = IRQIO_C70, }; static int diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c index 4fa21f7..12c16a6 100644 --- a/drivers/s390/char/sclp.c +++ b/drivers/s390/char/sclp.c @@ -400,7 +400,7 @@ static void sclp_interrupt_handler(struct ext_code ext_code, u32 finished_sccb; u32 evbuf_pending; - kstat_cpu(smp_processor_id()).irqs[EXTINT_SCP]++; + inc_irq_stat(IRQEXT_SCP); spin_lock(&sclp_lock); finished_sccb = param32 & 0xfffffff8; evbuf_pending = param32 & 0x3; @@ -813,7 +813,7 @@ static void sclp_check_handler(struct ext_code ext_code, { u32 finished_sccb; - kstat_cpu(smp_processor_id()).irqs[EXTINT_SCP]++; + inc_irq_stat(IRQEXT_SCP); finished_sccb = param32 & 0xfffffff8; /* Is this the interrupt we are waiting for? */ if (finished_sccb == 0) diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c index 6ae929c..9aa7970 100644 --- a/drivers/s390/char/tape_34xx.c +++ b/drivers/s390/char/tape_34xx.c @@ -1193,7 +1193,7 @@ static struct ccw_driver tape_34xx_driver = { .set_online = tape_34xx_online, .set_offline = tape_generic_offline, .freeze = tape_generic_pm_suspend, - .int_class = IOINT_TAP, + .int_class = IRQIO_TAP, }; static int diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c index 1b0eb49..327cb19 100644 --- a/drivers/s390/char/tape_3590.c +++ b/drivers/s390/char/tape_3590.c @@ -1656,7 +1656,7 @@ static struct ccw_driver tape_3590_driver = { .set_offline = tape_generic_offline, .set_online = tape_3590_online, .freeze = tape_generic_pm_suspend, - .int_class = IOINT_TAP, + .int_class = IRQIO_TAP, }; /* diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c index 73bef0b..483f72b 100644 --- a/drivers/s390/char/vmur.c +++ b/drivers/s390/char/vmur.c @@ -74,7 +74,7 @@ static struct ccw_driver ur_driver = { .set_online = ur_set_online, .set_offline = ur_set_offline, .freeze = ur_pm_suspend, - .int_class = IOINT_VMR, + .int_class = IRQIO_VMR, }; static DEFINE_MUTEX(vmur_mutex); diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c index 8f9a1a3..facdf80 100644 --- a/drivers/s390/cio/chsc_sch.c +++ b/drivers/s390/cio/chsc_sch.c @@ -58,7 +58,7 @@ static void chsc_subchannel_irq(struct subchannel *sch) CHSC_LOG(4, "irb"); CHSC_LOG_HEX(4, irb, sizeof(*irb)); - kstat_cpu(smp_processor_id()).irqs[IOINT_CSC]++; + inc_irq_stat(IRQIO_CSC); /* Copy irb to provided request and set done. */ if (!request) { diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index ebf61d5..c8faf62 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -619,7 +619,7 @@ void __irq_entry do_IRQ(struct pt_regs *regs) sch = (struct subchannel *)(unsigned long)tpi_info->intparm; if (!sch) { /* Clear pending interrupt condition. */ - kstat_cpu(smp_processor_id()).irqs[IOINT_CIO]++; + inc_irq_stat(IRQIO_CIO); tsch(tpi_info->schid, irb); continue; } @@ -633,9 +633,9 @@ void __irq_entry do_IRQ(struct pt_regs *regs) if (sch->driver && sch->driver->irq) sch->driver->irq(sch); else - kstat_cpu(smp_processor_id()).irqs[IOINT_CIO]++; + inc_irq_stat(IRQIO_CIO); } else - kstat_cpu(smp_processor_id()).irqs[IOINT_CIO]++; + inc_irq_stat(IRQIO_CIO); spin_unlock(sch->lock); /* * Are more interrupts pending? @@ -678,7 +678,7 @@ static void cio_tsch(struct subchannel *sch) if (sch->driver && sch->driver->irq) sch->driver->irq(sch); else - kstat_cpu(smp_processor_id()).irqs[IOINT_CIO]++; + inc_irq_stat(IRQIO_CIO); if (!irq_context) { irq_exit(); _local_bh_enable(); diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 6995cff..7cd5c68 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -758,7 +758,7 @@ static int io_subchannel_initialize_dev(struct subchannel *sch, struct ccw_device *cdev) { cdev->private->cdev = cdev; - cdev->private->int_class = IOINT_CIO; + cdev->private->int_class = IRQIO_CIO; atomic_set(&cdev->private->onoff, 0); cdev->dev.parent = &sch->dev; cdev->dev.release = ccw_device_release; @@ -1023,7 +1023,7 @@ static void io_subchannel_irq(struct subchannel *sch) if (cdev) dev_fsm_event(cdev, DEV_EVENT_INTERRUPT); else - kstat_cpu(smp_processor_id()).irqs[IOINT_CIO]++; + inc_irq_stat(IRQIO_CIO); } void io_subchannel_init_config(struct subchannel *sch) @@ -1634,7 +1634,7 @@ ccw_device_probe_console(void) memset(&console_private, 0, sizeof(struct ccw_device_private)); console_cdev.private = &console_private; console_private.cdev = &console_cdev; - console_private.int_class = IOINT_CIO; + console_private.int_class = IRQIO_CIO; ret = ccw_device_console_enable(&console_cdev, sch); if (ret) { cio_release_console(); @@ -1715,13 +1715,13 @@ ccw_device_probe (struct device *dev) if (cdrv->int_class != 0) cdev->private->int_class = cdrv->int_class; else - cdev->private->int_class = IOINT_CIO; + cdev->private->int_class = IRQIO_CIO; ret = cdrv->probe ? cdrv->probe(cdev) : -ENODEV; if (ret) { cdev->drv = NULL; - cdev->private->int_class = IOINT_CIO; + cdev->private->int_class = IRQIO_CIO; return ret; } @@ -1755,7 +1755,7 @@ ccw_device_remove (struct device *dev) } ccw_device_set_timeout(cdev, 0); cdev->drv = NULL; - cdev->private->int_class = IOINT_CIO; + cdev->private->int_class = IRQIO_CIO; return 0; } diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h index 2e575cf..7d4ecb6 100644 --- a/drivers/s390/cio/device.h +++ b/drivers/s390/cio/device.h @@ -61,11 +61,10 @@ dev_fsm_event(struct ccw_device *cdev, enum dev_event dev_event) if (dev_event == DEV_EVENT_INTERRUPT) { if (state == DEV_STATE_ONLINE) - kstat_cpu(smp_processor_id()). - irqs[cdev->private->int_class]++; + inc_irq_stat(cdev->private->int_class); else if (state != DEV_STATE_CMFCHANGE && state != DEV_STATE_CMFUPDATE) - kstat_cpu(smp_processor_id()).irqs[IOINT_CIO]++; + inc_irq_stat(IRQIO_CIO); } dev_jumptable[state][dev_event](cdev, dev_event); } diff --git a/drivers/s390/cio/eadm_sch.c b/drivers/s390/cio/eadm_sch.c index 6c96734..d9eddcb 100644 --- a/drivers/s390/cio/eadm_sch.c +++ b/drivers/s390/cio/eadm_sch.c @@ -139,7 +139,7 @@ static void eadm_subchannel_irq(struct subchannel *sch) EADM_LOG(6, "irq"); EADM_LOG_HEX(6, irb, sizeof(*irb)); - kstat_cpu(smp_processor_id()).irqs[IOINT_ADM]++; + inc_irq_stat(IRQIO_ADM); if ((scsw->stctl & (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)) && scsw->eswf == 1 && irb->esw.eadm.erw.r) diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c index bdb394b..bde5255 100644 --- a/drivers/s390/cio/qdio_thinint.c +++ b/drivers/s390/cio/qdio_thinint.c @@ -182,7 +182,7 @@ static void tiqdio_thinint_handler(void *alsi, void *data) struct qdio_q *q; last_ai_time = S390_lowcore.int_clock; - kstat_cpu(smp_processor_id()).irqs[IOINT_QAI]++; + inc_irq_stat(IRQIO_QAI); /* protect tiq_list entries, only changed in activate or shutdown */ rcu_read_lock(); diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 7b865a7..b8b340a 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -1272,7 +1272,7 @@ out: static void ap_interrupt_handler(void *unused1, void *unused2) { - kstat_cpu(smp_processor_id()).irqs[IOINT_APB]++; + inc_irq_stat(IRQIO_APB); tasklet_schedule(&ap_tasklet); } diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index 7dabef6..8491111 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -392,7 +392,7 @@ static void kvm_extint_handler(struct ext_code ext_code, if ((ext_code.subcode & 0xff00) != VIRTIO_SUBCODE_64) return; - kstat_cpu(smp_processor_id()).irqs[EXTINT_VRT]++; + inc_irq_stat(IRQEXT_VRT); /* The LSB might be overloaded, we have to mask it */ vq = (struct virtqueue *)(param64 & ~1UL); diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c index 5c70a65..83bc9c5 100644 --- a/drivers/s390/net/claw.c +++ b/drivers/s390/net/claw.c @@ -282,7 +282,7 @@ static struct ccw_driver claw_ccw_driver = { .ids = claw_ids, .probe = ccwgroup_probe_ccwdev, .remove = ccwgroup_remove_ccwdev, - .int_class = IOINT_CLW, + .int_class = IRQIO_CLW, }; static ssize_t claw_driver_group_store(struct device_driver *ddrv, diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index 817b689..676f120 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -1755,7 +1755,7 @@ static struct ccw_driver ctcm_ccw_driver = { .ids = ctcm_ids, .probe = ccwgroup_probe_ccwdev, .remove = ccwgroup_remove_ccwdev, - .int_class = IOINT_CTC, + .int_class = IRQIO_CTC, }; static struct ccwgroup_driver ctcm_group_driver = { diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index 2ca0f1d..c645dc9 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -2384,7 +2384,7 @@ static struct ccw_driver lcs_ccw_driver = { .ids = lcs_ids, .probe = ccwgroup_probe_ccwdev, .remove = ccwgroup_remove_ccwdev, - .int_class = IOINT_LCS, + .int_class = IRQIO_LCS, }; /** diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c index 3ad1f9d..df08250 100644 --- a/net/iucv/iucv.c +++ b/net/iucv/iucv.c @@ -1806,7 +1806,7 @@ static void iucv_external_interrupt(struct ext_code ext_code, struct iucv_irq_data *p; struct iucv_irq_list *work; - kstat_cpu(smp_processor_id()).irqs[EXTINT_IUC]++; + inc_irq_stat(IRQEXT_IUC); p = iucv_irq_data[smp_processor_id()]; if (p->ippathid >= iucv_max_pathid) { WARN_ON(p->ippathid >= iucv_max_pathid); -- cgit v0.10.2 From 93f3b2ee0abff5438e74cc90cf816429248cc8eb Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 2 Jan 2013 16:54:12 +0100 Subject: s390/irq: count cpu restart events Count CPU Restart events and make them visible via /proc/interrupts. Every CPU hotplug (online) event will increase the per cpu counter. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index c98dcac..7def773 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -42,6 +42,7 @@ enum interruption_class { IRQIO_PCI, IRQIO_MSI, NMI_NMI, + CPU_RST, NR_ARCH_IRQS }; diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 5f54624..9df824e 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -82,6 +82,7 @@ static const struct irq_class irqclass_sub_desc[NR_ARCH_IRQS] = { [IRQIO_PCI] = {.name = "PCI", .desc = "[I/O] PCI Interrupt" }, [IRQIO_MSI] = {.name = "MSI", .desc = "[I/O] MSI Interrupt" }, [NMI_NMI] = {.name = "NMI", .desc = "[NMI] Machine Check"}, + [CPU_RST] = {.name = "RST", .desc = "[CPU] CPU Restart"}, }; /* diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 4a36d5b..7433a2f 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -709,6 +709,7 @@ static void __cpuinit smp_start_secondary(void *cpuvoid) pfault_init(); notify_cpu_starting(smp_processor_id()); set_cpu_online(smp_processor_id(), true); + inc_irq_stat(CPU_RST); local_irq_enable(); /* cpu_idle will call schedule for us */ cpu_idle(); -- cgit v0.10.2 From 6673cd0bdbc802f2b05453a51fbcf2cf7d8be315 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 3 Jan 2013 14:31:53 +0100 Subject: s390/3215: partially revert tty close handling fix Partially revert ae289dc1f "s390/3215: fix tty close handling", since this leads sometimes to hanging agetty processes and therefore systems that get stuck while starting. This was magically fixed (bisected) by a common code patch from Alan Cox: 36b3c070 "tty: Move the handling of the tty release logic", however it was unrelated. Since the removed code worked for a decade, nobody knows anymore why it was in there in the first place and debugging the observed hang is non-trivial (at least for me :) ), let's just re-add the removed code before we see other side effects. Signed-off-by: Heiko Carstens diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index 1c1dae0..33b7141 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -44,6 +44,7 @@ #define RAW3215_NR_CCWS 3 #define RAW3215_TIMEOUT HZ/10 /* time for delayed output */ +#define RAW3215_FIXED 1 /* 3215 console device is not be freed */ #define RAW3215_WORKING 4 /* set if a request is being worked on */ #define RAW3215_THROTTLED 8 /* set if reading is disabled */ #define RAW3215_STOPPED 16 /* set if writing is disabled */ @@ -630,7 +631,8 @@ static void raw3215_shutdown(struct raw3215_info *raw) DECLARE_WAITQUEUE(wait, current); unsigned long flags; - if (!(raw->port.flags & ASYNC_INITIALIZED)) + if (!(raw->port.flags & ASYNC_INITIALIZED) || + (raw->flags & RAW3215_FIXED)) return; /* Wait for outstanding requests, then free irq */ spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); @@ -927,6 +929,8 @@ static int __init con3215_init(void) dev_set_drvdata(&cdev->dev, raw); cdev->handler = raw3215_irq; + raw->flags |= RAW3215_FIXED; + /* Request the console irq */ if (raw3215_startup(raw) != 0) { raw3215_free_info(raw); -- cgit v0.10.2 From 87890f92278dc0c2da4ecdaa196006a3c2cf3687 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 7 Jan 2013 13:52:53 +0100 Subject: s390/pci: define isa_dma_bridge_buggy MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Define isa_dma_bridge_buggy. Needed to make pci quirks compile: drivers/pci/quirks.c: In function ‘quirk_isa_dma_hangs’: drivers/pci/quirks.c:88:7: error: ‘isa_dma_bridge_buggy’ undeclared (first use in this function) Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/dma.h b/arch/s390/include/asm/dma.h index de015d8..bb9bdcd 100644 --- a/arch/s390/include/asm/dma.h +++ b/arch/s390/include/asm/dma.h @@ -10,4 +10,10 @@ */ #define MAX_DMA_ADDRESS 0x80000000 +#ifdef CONFIG_PCI +extern int isa_dma_bridge_buggy; +#else +#define isa_dma_bridge_buggy (0) +#endif + #endif /* _ASM_S390_DMA_H */ -- cgit v0.10.2 From 0872922f5dc24783101a2dd111ee406ea965a094 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 7 Jan 2013 13:56:17 +0100 Subject: s390/pm: export pm_power_off Export pm_power_off symbol. Needed by at least one of the new device drivers that come with CONFIG_PCI. And all other architectures export that symbol as well. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 2568590..a5360de 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -16,7 +16,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include -#include +#include #include #include #include @@ -289,6 +289,7 @@ void machine_power_off(void) * Dummy power off function. */ void (*pm_power_off)(void) = machine_power_off; +EXPORT_SYMBOL_GPL(pm_power_off); static int __init early_parse_mem(char *p) { -- cgit v0.10.2 From 80020fbd65c17d3d9e7d80cfd3fa4c57ae7ff765 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 7 Jan 2013 13:58:38 +0100 Subject: s390/topology: export cpu_topology Export cpu_topology symbol, so it's available for modules. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index f1aba87..4b2e3e3 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -42,6 +43,7 @@ static struct mask_info socket_info; static struct mask_info book_info; struct cpu_topology_s390 cpu_topology[NR_CPUS]; +EXPORT_SYMBOL_GPL(cpu_topology); static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu) { -- cgit v0.10.2 From 478740a14826c50595649b3dafed71576796dd95 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 7 Jan 2013 14:03:34 +0100 Subject: s390/pci: define read*_relaxed functions Just map the read*_relaxed() functions to their corresponding read*() functions. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h index 16c3eb1..27cb321 100644 --- a/arch/s390/include/asm/io.h +++ b/arch/s390/include/asm/io.h @@ -85,6 +85,11 @@ static inline void iounmap(volatile void __iomem *addr) #define __raw_writel zpci_write_u32 #define __raw_writeq zpci_write_u64 +#define readb_relaxed readb +#define readw_relaxed readw +#define readl_relaxed readl +#define readq_relaxed readq + #endif /* CONFIG_PCI */ #include -- cgit v0.10.2 From 901593f2bf221659a605bdc1dcb11376ea934163 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 19 Dec 2012 16:51:06 +0000 Subject: drm: Only evict the blocks required to create the requested hole Avoid clobbering adjacent blocks if they happen to expire earlier and amalgamate together to form the requested hole. In passing this fixes a regression from commit ea7b1dd44867e9cd6bac67e7c9fc3f128b5b255c Author: Daniel Vetter Date: Fri Feb 18 17:59:12 2011 +0100 drm: mm: track free areas implicitly which swaps the end address for size (with a potential overflow) and effectively causes the eviction code to clobber almost all earlier buffers above the evictee. v2: Check the original hole not the adjusted as the coloring may confuse us when later searching for the overlapping nodes. Also make sure that we do apply the range restriction and color adjustment in the same order for both scanning, searching and insertion. v3: Send the version that was actually tested. Note that this seems to be ducttape of decent quality ot paper over some of our unbind related gpu hangs reported since 3.7. It is not fully effective though, and certainly doesn't fix the underlying bug. Signed-off-by: Chris Wilson Cc: Daniel Vetter [danvet: Added note plus bugzilla link and tested-by.] Cc: stable@vger.kernel.org Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=55984 Tested-by: Norbert Preining Acked-by: Dave Airlie diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c index 2bf9670..2aa3314 100644 --- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -221,11 +221,13 @@ static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node, BUG_ON(!hole_node->hole_follows || node->allocated); - if (mm->color_adjust) - mm->color_adjust(hole_node, color, &adj_start, &adj_end); - if (adj_start < start) adj_start = start; + if (adj_end > end) + adj_end = end; + + if (mm->color_adjust) + mm->color_adjust(hole_node, color, &adj_start, &adj_end); if (alignment) { unsigned tmp = adj_start % alignment; @@ -506,7 +508,7 @@ void drm_mm_init_scan(struct drm_mm *mm, mm->scan_size = size; mm->scanned_blocks = 0; mm->scan_hit_start = 0; - mm->scan_hit_size = 0; + mm->scan_hit_end = 0; mm->scan_check_range = 0; mm->prev_scanned_node = NULL; } @@ -533,7 +535,7 @@ void drm_mm_init_scan_with_range(struct drm_mm *mm, mm->scan_size = size; mm->scanned_blocks = 0; mm->scan_hit_start = 0; - mm->scan_hit_size = 0; + mm->scan_hit_end = 0; mm->scan_start = start; mm->scan_end = end; mm->scan_check_range = 1; @@ -552,8 +554,7 @@ int drm_mm_scan_add_block(struct drm_mm_node *node) struct drm_mm *mm = node->mm; struct drm_mm_node *prev_node; unsigned long hole_start, hole_end; - unsigned long adj_start; - unsigned long adj_end; + unsigned long adj_start, adj_end; mm->scanned_blocks++; @@ -570,14 +571,8 @@ int drm_mm_scan_add_block(struct drm_mm_node *node) node->node_list.next = &mm->prev_scanned_node->node_list; mm->prev_scanned_node = node; - hole_start = drm_mm_hole_node_start(prev_node); - hole_end = drm_mm_hole_node_end(prev_node); - - adj_start = hole_start; - adj_end = hole_end; - - if (mm->color_adjust) - mm->color_adjust(prev_node, mm->scan_color, &adj_start, &adj_end); + adj_start = hole_start = drm_mm_hole_node_start(prev_node); + adj_end = hole_end = drm_mm_hole_node_end(prev_node); if (mm->scan_check_range) { if (adj_start < mm->scan_start) @@ -586,11 +581,14 @@ int drm_mm_scan_add_block(struct drm_mm_node *node) adj_end = mm->scan_end; } + if (mm->color_adjust) + mm->color_adjust(prev_node, mm->scan_color, + &adj_start, &adj_end); + if (check_free_hole(adj_start, adj_end, mm->scan_size, mm->scan_alignment)) { mm->scan_hit_start = hole_start; - mm->scan_hit_size = hole_end; - + mm->scan_hit_end = hole_end; return 1; } @@ -626,19 +624,10 @@ int drm_mm_scan_remove_block(struct drm_mm_node *node) node_list); prev_node->hole_follows = node->scanned_preceeds_hole; - INIT_LIST_HEAD(&node->node_list); list_add(&node->node_list, &prev_node->node_list); - /* Only need to check for containement because start&size for the - * complete resulting free block (not just the desired part) is - * stored. */ - if (node->start >= mm->scan_hit_start && - node->start + node->size - <= mm->scan_hit_start + mm->scan_hit_size) { - return 1; - } - - return 0; + return (drm_mm_hole_node_end(node) > mm->scan_hit_start && + node->start < mm->scan_hit_end); } EXPORT_SYMBOL(drm_mm_scan_remove_block); diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h index 0f4a366..3527fb3f 100644 --- a/include/drm/drm_mm.h +++ b/include/drm/drm_mm.h @@ -70,7 +70,7 @@ struct drm_mm { unsigned long scan_color; unsigned long scan_size; unsigned long scan_hit_start; - unsigned scan_hit_size; + unsigned long scan_hit_end; unsigned scanned_blocks; unsigned long scan_start; unsigned long scan_end; -- cgit v0.10.2 From cc7ebb2892197fbf2512063547dfd1702bc936fa Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 18 Dec 2012 22:13:13 +0000 Subject: drm/i915: The sprite scaler on Ironlake also support YUV planes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes a regression from commit 57779d06367a915ee03e6cb918d7575f0a46e419 Author: Ville Syrjälä Date: Wed Oct 31 17:50:14 2012 +0200 drm/i915: Fix display pixel format handling (which even says that they are supported on Ironlake, and then promptly rejects then...) Signed-off-by: Chris Wilson Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a9fb046..5c869cb 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8637,7 +8637,7 @@ int intel_framebuffer_init(struct drm_device *dev, case DRM_FORMAT_UYVY: case DRM_FORMAT_YVYU: case DRM_FORMAT_VYUY: - if (INTEL_INFO(dev)->gen < 6) + if (INTEL_INFO(dev)->gen < 5) return -EINVAL; break; default: -- cgit v0.10.2 From bc3b7756b5ff66828acf7bc24f148d28b8d61108 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 28 Dec 2012 17:09:03 +0800 Subject: regulator: max8997: Use uV in voltage_map_desc Current code does integer division (min_vol = min_uV / 1000) before pass min_vol to max8997_get_voltage_proper_val(). So it is possible min_vol is truncated to a smaller value. For example, if the request min_uV is 800900 for ldo. min_vol = 800900 / 1000 = 800 (mV) Then max8997_get_voltage_proper_val returns 800 mV for this case which is lower than the requested voltage. Use uV rather than mV in voltage_map_desc to prevent truncation by integer division. Signed-off-by: Axel Lin Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997.c index df0eafb..02be7fc 100644 --- a/drivers/regulator/max8997.c +++ b/drivers/regulator/max8997.c @@ -71,26 +71,26 @@ struct voltage_map_desc { int step; }; -/* Voltage maps in mV */ +/* Voltage maps in uV */ static const struct voltage_map_desc ldo_voltage_map_desc = { - .min = 800, .max = 3950, .step = 50, + .min = 800000, .max = 3950000, .step = 50000, }; /* LDO1 ~ 18, 21 all */ static const struct voltage_map_desc buck1245_voltage_map_desc = { - .min = 650, .max = 2225, .step = 25, + .min = 650000, .max = 2225000, .step = 25000, }; /* Buck1, 2, 4, 5 */ static const struct voltage_map_desc buck37_voltage_map_desc = { - .min = 750, .max = 3900, .step = 50, + .min = 750000, .max = 3900000, .step = 50000, }; /* Buck3, 7 */ -/* current map in mA */ +/* current map in uA */ static const struct voltage_map_desc charger_current_map_desc = { - .min = 200, .max = 950, .step = 50, + .min = 200000, .max = 950000, .step = 50000, }; static const struct voltage_map_desc topoff_current_map_desc = { - .min = 50, .max = 200, .step = 10, + .min = 50000, .max = 200000, .step = 10000, }; static const struct voltage_map_desc *reg_voltage_map[] = { @@ -194,7 +194,7 @@ static int max8997_list_voltage(struct regulator_dev *rdev, if (val > desc->max) return -EINVAL; - return val * 1000; + return val; } static int max8997_get_enable_register(struct regulator_dev *rdev, @@ -485,7 +485,6 @@ static int max8997_set_voltage_ldobuck(struct regulator_dev *rdev, { struct max8997_data *max8997 = rdev_get_drvdata(rdev); struct i2c_client *i2c = max8997->iodev->i2c; - int min_vol = min_uV / 1000, max_vol = max_uV / 1000; const struct voltage_map_desc *desc; int rid = rdev_get_id(rdev); int i, reg, shift, mask, ret; @@ -509,7 +508,7 @@ static int max8997_set_voltage_ldobuck(struct regulator_dev *rdev, desc = reg_voltage_map[rid]; - i = max8997_get_voltage_proper_val(desc, min_vol, max_vol); + i = max8997_get_voltage_proper_val(desc, min_uV, max_uV); if (i < 0) return i; @@ -557,7 +556,7 @@ static int max8997_set_voltage_ldobuck_time_sel(struct regulator_dev *rdev, case MAX8997_BUCK4: case MAX8997_BUCK5: return DIV_ROUND_UP(desc->step * (new_selector - old_selector), - max8997->ramp_delay); + max8997->ramp_delay * 1000); } return 0; @@ -656,7 +655,6 @@ static int max8997_set_voltage_buck(struct regulator_dev *rdev, const struct voltage_map_desc *desc; int new_val, new_idx, damage, tmp_val, tmp_idx, tmp_dmg; bool gpio_dvs_mode = false; - int min_vol = min_uV / 1000, max_vol = max_uV / 1000; if (rid < MAX8997_BUCK1 || rid > MAX8997_BUCK7) return -EINVAL; @@ -681,7 +679,7 @@ static int max8997_set_voltage_buck(struct regulator_dev *rdev, selector); desc = reg_voltage_map[rid]; - new_val = max8997_get_voltage_proper_val(desc, min_vol, max_vol); + new_val = max8997_get_voltage_proper_val(desc, min_uV, max_uV); if (new_val < 0) return new_val; @@ -1123,8 +1121,8 @@ static int max8997_pmic_probe(struct platform_device *pdev) max8997->buck1_vol[i] = ret = max8997_get_voltage_proper_val( &buck1245_voltage_map_desc, - pdata->buck1_voltage[i] / 1000, - pdata->buck1_voltage[i] / 1000 + + pdata->buck1_voltage[i], + pdata->buck1_voltage[i] + buck1245_voltage_map_desc.step); if (ret < 0) goto err_out; @@ -1132,8 +1130,8 @@ static int max8997_pmic_probe(struct platform_device *pdev) max8997->buck2_vol[i] = ret = max8997_get_voltage_proper_val( &buck1245_voltage_map_desc, - pdata->buck2_voltage[i] / 1000, - pdata->buck2_voltage[i] / 1000 + + pdata->buck2_voltage[i], + pdata->buck2_voltage[i] + buck1245_voltage_map_desc.step); if (ret < 0) goto err_out; @@ -1141,8 +1139,8 @@ static int max8997_pmic_probe(struct platform_device *pdev) max8997->buck5_vol[i] = ret = max8997_get_voltage_proper_val( &buck1245_voltage_map_desc, - pdata->buck5_voltage[i] / 1000, - pdata->buck5_voltage[i] / 1000 + + pdata->buck5_voltage[i], + pdata->buck5_voltage[i] + buck1245_voltage_map_desc.step); if (ret < 0) goto err_out; -- cgit v0.10.2 From adf6178ad5552a7f2f742a8c85343c50f080c412 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 28 Dec 2012 17:10:20 +0800 Subject: regulator: max8998: Use uV in voltage_map_desc Integer division may truncate. This happens when pdata->buckx_voltagex setting is not align with 1000 uV. Thus use uV in voltage_map_desc, this ensures the selected voltage won't less than pdata buckx_voltagex settings. Signed-off-by: Axel Lin Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c index b821d08..06be8cc 100644 --- a/drivers/regulator/max8998.c +++ b/drivers/regulator/max8998.c @@ -51,39 +51,39 @@ struct voltage_map_desc { int step; }; -/* Voltage maps */ +/* Voltage maps in uV*/ static const struct voltage_map_desc ldo23_voltage_map_desc = { - .min = 800, .step = 50, .max = 1300, + .min = 800000, .step = 50000, .max = 1300000, }; static const struct voltage_map_desc ldo456711_voltage_map_desc = { - .min = 1600, .step = 100, .max = 3600, + .min = 1600000, .step = 100000, .max = 3600000, }; static const struct voltage_map_desc ldo8_voltage_map_desc = { - .min = 3000, .step = 100, .max = 3600, + .min = 3000000, .step = 100000, .max = 3600000, }; static const struct voltage_map_desc ldo9_voltage_map_desc = { - .min = 2800, .step = 100, .max = 3100, + .min = 2800000, .step = 100000, .max = 3100000, }; static const struct voltage_map_desc ldo10_voltage_map_desc = { - .min = 950, .step = 50, .max = 1300, + .min = 95000, .step = 50000, .max = 1300000, }; static const struct voltage_map_desc ldo1213_voltage_map_desc = { - .min = 800, .step = 100, .max = 3300, + .min = 800000, .step = 100000, .max = 3300000, }; static const struct voltage_map_desc ldo1415_voltage_map_desc = { - .min = 1200, .step = 100, .max = 3300, + .min = 1200000, .step = 100000, .max = 3300000, }; static const struct voltage_map_desc ldo1617_voltage_map_desc = { - .min = 1600, .step = 100, .max = 3600, + .min = 1600000, .step = 100000, .max = 3600000, }; static const struct voltage_map_desc buck12_voltage_map_desc = { - .min = 750, .step = 25, .max = 1525, + .min = 750000, .step = 25000, .max = 1525000, }; static const struct voltage_map_desc buck3_voltage_map_desc = { - .min = 1600, .step = 100, .max = 3600, + .min = 1600000, .step = 100000, .max = 3600000, }; static const struct voltage_map_desc buck4_voltage_map_desc = { - .min = 800, .step = 100, .max = 2300, + .min = 800000, .step = 100000, .max = 2300000, }; static const struct voltage_map_desc *ldo_voltage_map[] = { @@ -445,7 +445,7 @@ static int max8998_set_voltage_buck_time_sel(struct regulator_dev *rdev, if (max8998->iodev->type == TYPE_MAX8998 && !(val & MAX8998_ENRAMP)) return 0; - difference = (new_selector - old_selector) * desc->step; + difference = (new_selector - old_selector) * desc->step / 1000; if (difference > 0) return difference / ((val & 0x0f) + 1); @@ -702,7 +702,7 @@ static int max8998_pmic_probe(struct platform_device *pdev) i = 0; while (buck12_voltage_map_desc.min + buck12_voltage_map_desc.step*i - < (pdata->buck1_voltage1 / 1000)) + < pdata->buck1_voltage1) i++; max8998->buck1_vol[0] = i; ret = max8998_write_reg(i2c, MAX8998_REG_BUCK1_VOLTAGE1, i); @@ -713,7 +713,7 @@ static int max8998_pmic_probe(struct platform_device *pdev) i = 0; while (buck12_voltage_map_desc.min + buck12_voltage_map_desc.step*i - < (pdata->buck1_voltage2 / 1000)) + < pdata->buck1_voltage2) i++; max8998->buck1_vol[1] = i; @@ -725,7 +725,7 @@ static int max8998_pmic_probe(struct platform_device *pdev) i = 0; while (buck12_voltage_map_desc.min + buck12_voltage_map_desc.step*i - < (pdata->buck1_voltage3 / 1000)) + < pdata->buck1_voltage3) i++; max8998->buck1_vol[2] = i; @@ -737,7 +737,7 @@ static int max8998_pmic_probe(struct platform_device *pdev) i = 0; while (buck12_voltage_map_desc.min + buck12_voltage_map_desc.step*i - < (pdata->buck1_voltage4 / 1000)) + < pdata->buck1_voltage4) i++; max8998->buck1_vol[3] = i; @@ -763,7 +763,7 @@ static int max8998_pmic_probe(struct platform_device *pdev) i = 0; while (buck12_voltage_map_desc.min + buck12_voltage_map_desc.step*i - < (pdata->buck2_voltage1 / 1000)) + < pdata->buck2_voltage1) i++; max8998->buck2_vol[0] = i; ret = max8998_write_reg(i2c, MAX8998_REG_BUCK2_VOLTAGE1, i); @@ -774,7 +774,7 @@ static int max8998_pmic_probe(struct platform_device *pdev) i = 0; while (buck12_voltage_map_desc.min + buck12_voltage_map_desc.step*i - < (pdata->buck2_voltage2 / 1000)) + < pdata->buck2_voltage2) i++; max8998->buck2_vol[1] = i; ret = max8998_write_reg(i2c, MAX8998_REG_BUCK2_VOLTAGE2, i); @@ -792,8 +792,8 @@ static int max8998_pmic_probe(struct platform_device *pdev) int count = (desc->max - desc->min) / desc->step + 1; regulators[index].n_voltages = count; - regulators[index].min_uV = desc->min * 1000; - regulators[index].uV_step = desc->step * 1000; + regulators[index].min_uV = desc->min; + regulators[index].uV_step = desc->step; } config.dev = max8998->dev; -- cgit v0.10.2 From 41b645c8624df6ace020a8863ad1449d69140f7d Mon Sep 17 00:00:00 2001 From: Mike Dunn Date: Mon, 7 Jan 2013 13:55:12 -0800 Subject: ALSA: pxa27x: fix ac97 cold reset Cold reset on the pxa27x currently fails and pxa2xx_ac97_try_cold_reset: cold reset timeout (GSR=0x44) appears in the kernel log. Through trial-and-error (the pxa270 developer's manual is mostly incoherent on the topic of ac97 reset), I got cold reset to complete by setting the WARM_RST bit in the GCR register (and later noticed that pxa3xx does this for cold reset as well). Also, a timeout loop is needed to wait for the reset to complete. Tested on a palm treo 680 machine. Signed-off-by: Mike Dunn Acked-by: Igor Grinberg Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c index 6fc0ae9..1ecd0a66 100644 --- a/sound/arm/pxa2xx-ac97-lib.c +++ b/sound/arm/pxa2xx-ac97-lib.c @@ -148,6 +148,8 @@ static inline void pxa_ac97_warm_pxa27x(void) static inline void pxa_ac97_cold_pxa27x(void) { + unsigned int timeout; + GCR &= GCR_COLD_RST; /* clear everything but nCRST */ GCR &= ~GCR_COLD_RST; /* then assert nCRST */ @@ -157,8 +159,10 @@ static inline void pxa_ac97_cold_pxa27x(void) clk_enable(ac97conf_clk); udelay(5); clk_disable(ac97conf_clk); - GCR = GCR_COLD_RST; - udelay(50); + GCR = GCR_COLD_RST | GCR_WARM_RST; + timeout = 100; /* wait for the codec-ready bit to be set */ + while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--) + mdelay(1); } #endif -- cgit v0.10.2 From 3b4bc7bccc7857274705b05cf81a0c72cfd0b0dd Mon Sep 17 00:00:00 2001 From: Mike Dunn Date: Mon, 7 Jan 2013 13:55:13 -0800 Subject: ALSA: pxa27x: fix ac97 warm reset This patch fixes some code that implements a work-around to a hardware bug in the ac97 controller on the pxa27x. A bug in the controller's warm reset functionality requires that the mfp used by the controller as the AC97_nRESET line be temporarily reconfigured as a generic output gpio (AF0) and manually held high for the duration of the warm reset cycle. This is what was done in the original code, but it was broken long ago by commit fb1bf8cd ([ARM] pxa: introduce processor specific pxa27x_assert_ac97reset()) which changed the mfp to a GPIO input instead of a high output. The fix requires the ac97 controller to obtain the gpio via gpio_request_one(), with arguments that configure the gpio as an output initially driven high. Tested on a palm treo 680 machine. Reportedly, this broken code only prevents a warm reset on hardware that lacks a pull-up on the line, which appears to be the case for me. Signed-off-by: Mike Dunn Signed-off-by: Igor Grinberg Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h b/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h index a611ad3..b6132aa 100644 --- a/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h +++ b/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h @@ -463,6 +463,9 @@ GPIO76_LCD_PCLK, \ GPIO77_LCD_BIAS +/* these enable a work-around for a hw bug in pxa27x during ac97 warm reset */ +#define GPIO113_AC97_nRESET_GPIO_HIGH MFP_CFG_OUT(GPIO113, AF0, DEFAULT) +#define GPIO95_AC97_nRESET_GPIO_HIGH MFP_CFG_OUT(GPIO95, AF0, DEFAULT) extern int keypad_set_wake(unsigned int on); #endif /* __ASM_ARCH_MFP_PXA27X_H */ diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index 8047ee0..616cb87 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -47,9 +47,9 @@ void pxa27x_clear_otgph(void) EXPORT_SYMBOL(pxa27x_clear_otgph); static unsigned long ac97_reset_config[] = { - GPIO113_GPIO, + GPIO113_AC97_nRESET_GPIO_HIGH, GPIO113_AC97_nRESET, - GPIO95_GPIO, + GPIO95_AC97_nRESET_GPIO_HIGH, GPIO95_AC97_nRESET, }; diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c index 1ecd0a66..fff7753 100644 --- a/sound/arm/pxa2xx-ac97-lib.c +++ b/sound/arm/pxa2xx-ac97-lib.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -344,8 +345,21 @@ int pxa2xx_ac97_hw_probe(struct platform_device *dev) } if (cpu_is_pxa27x()) { - /* Use GPIO 113 as AC97 Reset on Bulverde */ + /* + * This gpio is needed for a work-around to a bug in the ac97 + * controller during warm reset. The direction and level is set + * here so that it is an output driven high when switching from + * AC97_nRESET alt function to generic gpio. + */ + ret = gpio_request_one(reset_gpio, GPIOF_OUT_INIT_HIGH, + "pxa27x ac97 reset"); + if (ret < 0) { + pr_err("%s: gpio_request_one() failed: %d\n", + __func__, ret); + goto err_conf; + } pxa27x_assert_ac97reset(reset_gpio, 0); + ac97conf_clk = clk_get(&dev->dev, "AC97CONFCLK"); if (IS_ERR(ac97conf_clk)) { ret = PTR_ERR(ac97conf_clk); @@ -388,6 +402,8 @@ EXPORT_SYMBOL_GPL(pxa2xx_ac97_hw_probe); void pxa2xx_ac97_hw_remove(struct platform_device *dev) { + if (cpu_is_pxa27x()) + gpio_free(reset_gpio); GCR |= GCR_ACLINK_OFF; free_irq(IRQ_AC97, NULL); if (ac97conf_clk) { -- cgit v0.10.2 From 013f6a5d3dd9e4ebf4b49ca427b9c1f2e2a1b767 Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Thu, 3 Jan 2013 11:41:39 -0200 Subject: KVM: x86: use dynamic percpu allocations for shared msrs area Use dynamic percpu allocations for the shared msrs structure, to avoid using the limited reserved percpu space. Reviewed-by: Gleb Natapov Signed-off-by: Marcelo Tosatti diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 76f5446..c243b81 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -120,7 +120,7 @@ struct kvm_shared_msrs { }; static struct kvm_shared_msrs_global __read_mostly shared_msrs_global; -static DEFINE_PER_CPU(struct kvm_shared_msrs, shared_msrs); +static struct kvm_shared_msrs __percpu *shared_msrs; struct kvm_stats_debugfs_item debugfs_entries[] = { { "pf_fixed", VCPU_STAT(pf_fixed) }, @@ -191,10 +191,10 @@ static void kvm_on_user_return(struct user_return_notifier *urn) static void shared_msr_update(unsigned slot, u32 msr) { - struct kvm_shared_msrs *smsr; u64 value; + unsigned int cpu = smp_processor_id(); + struct kvm_shared_msrs *smsr = per_cpu_ptr(shared_msrs, cpu); - smsr = &__get_cpu_var(shared_msrs); /* only read, and nobody should modify it at this time, * so don't need lock */ if (slot >= shared_msrs_global.nr) { @@ -226,7 +226,8 @@ static void kvm_shared_msr_cpu_online(void) void kvm_set_shared_msr(unsigned slot, u64 value, u64 mask) { - struct kvm_shared_msrs *smsr = &__get_cpu_var(shared_msrs); + unsigned int cpu = smp_processor_id(); + struct kvm_shared_msrs *smsr = per_cpu_ptr(shared_msrs, cpu); if (((value ^ smsr->values[slot].curr) & mask) == 0) return; @@ -242,7 +243,8 @@ EXPORT_SYMBOL_GPL(kvm_set_shared_msr); static void drop_user_return_notifiers(void *ignore) { - struct kvm_shared_msrs *smsr = &__get_cpu_var(shared_msrs); + unsigned int cpu = smp_processor_id(); + struct kvm_shared_msrs *smsr = per_cpu_ptr(shared_msrs, cpu); if (smsr->registered) kvm_on_user_return(&smsr->urn); @@ -5233,9 +5235,16 @@ int kvm_arch_init(void *opaque) goto out; } + r = -ENOMEM; + shared_msrs = alloc_percpu(struct kvm_shared_msrs); + if (!shared_msrs) { + printk(KERN_ERR "kvm: failed to allocate percpu kvm_shared_msrs\n"); + goto out; + } + r = kvm_mmu_module_init(); if (r) - goto out; + goto out_free_percpu; kvm_set_mmio_spte_mask(); kvm_init_msr_list(); @@ -5258,6 +5267,8 @@ int kvm_arch_init(void *opaque) return 0; +out_free_percpu: + free_percpu(shared_msrs); out: return r; } @@ -5275,6 +5286,7 @@ void kvm_arch_exit(void) #endif kvm_x86_ops = NULL; kvm_mmu_module_exit(); + free_percpu(shared_msrs); } int kvm_emulate_halt(struct kvm_vcpu *vcpu) -- cgit v0.10.2 From c16ed4be4c3c691e8c11dc6d22490f79f030d300 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 18 Dec 2012 22:13:14 +0000 Subject: drm/i915: Add DEBUG messages to all intel_create_user_framebuffer error paths This proves to be very useful when investigating why code suddenly started failing. Signed-off-by: Chris Wilson Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 5c869cb..da1ad9c 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8598,19 +8598,30 @@ int intel_framebuffer_init(struct drm_device *dev, { int ret; - if (obj->tiling_mode == I915_TILING_Y) + if (obj->tiling_mode == I915_TILING_Y) { + DRM_DEBUG("hardware does not support tiling Y\n"); return -EINVAL; + } - if (mode_cmd->pitches[0] & 63) + if (mode_cmd->pitches[0] & 63) { + DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n", + mode_cmd->pitches[0]); return -EINVAL; + } /* FIXME <= Gen4 stride limits are bit unclear */ - if (mode_cmd->pitches[0] > 32768) + if (mode_cmd->pitches[0] > 32768) { + DRM_DEBUG("pitch (%d) must be at less than 32768\n", + mode_cmd->pitches[0]); return -EINVAL; + } if (obj->tiling_mode != I915_TILING_NONE && - mode_cmd->pitches[0] != obj->stride) + mode_cmd->pitches[0] != obj->stride) { + DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n", + mode_cmd->pitches[0], obj->stride); return -EINVAL; + } /* Reject formats not supported by any plane early. */ switch (mode_cmd->pixel_format) { @@ -8621,8 +8632,10 @@ int intel_framebuffer_init(struct drm_device *dev, break; case DRM_FORMAT_XRGB1555: case DRM_FORMAT_ARGB1555: - if (INTEL_INFO(dev)->gen > 3) + if (INTEL_INFO(dev)->gen > 3) { + DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format); return -EINVAL; + } break; case DRM_FORMAT_XBGR8888: case DRM_FORMAT_ABGR8888: @@ -8630,18 +8643,22 @@ int intel_framebuffer_init(struct drm_device *dev, case DRM_FORMAT_ARGB2101010: case DRM_FORMAT_XBGR2101010: case DRM_FORMAT_ABGR2101010: - if (INTEL_INFO(dev)->gen < 4) + if (INTEL_INFO(dev)->gen < 4) { + DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format); return -EINVAL; + } break; case DRM_FORMAT_YUYV: case DRM_FORMAT_UYVY: case DRM_FORMAT_YVYU: case DRM_FORMAT_VYUY: - if (INTEL_INFO(dev)->gen < 5) + if (INTEL_INFO(dev)->gen < 5) { + DRM_DEBUG("invalid format: 0x%08x\n", mode_cmd->pixel_format); return -EINVAL; + } break; default: - DRM_DEBUG_KMS("unsupported pixel format 0x%08x\n", mode_cmd->pixel_format); + DRM_DEBUG("unsupported pixel format 0x%08x\n", mode_cmd->pixel_format); return -EINVAL; } -- cgit v0.10.2 From 87ed50036b866db2ec2ba16b2a7aec4a2b0b7c39 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 7 Jan 2013 14:30:46 -0500 Subject: SUNRPC: Ensure we release the socket write lock if the rpc_task exits early If the rpc_task exits while holding the socket write lock before it has allocated an rpc slot, then the usual mechanism for releasing the write lock in xprt_release() is defeated. The problem occurs if the call to xprt_lock_write() initially fails, so that the rpc_task is put on the xprt->sending wait queue. If the task exits after being assigned the lock by __xprt_lock_write_func, but before it has retried the call to xprt_lock_and_alloc_slot(), then it calls xprt_release() while holding the write lock, but will immediately exit due to the test for task->tk_rqstp != NULL. Reported-by: Chris Perl Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org [>= 3.1] diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index b4133bd..bfa3171 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -972,8 +972,7 @@ static void rpc_async_release(struct work_struct *work) static void rpc_release_resources_task(struct rpc_task *task) { - if (task->tk_rqstp) - xprt_release(task); + xprt_release(task); if (task->tk_msg.rpc_cred) { put_rpccred(task->tk_msg.rpc_cred); task->tk_msg.rpc_cred = NULL; diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index bd462a5..33811db 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -1136,10 +1136,18 @@ static void xprt_request_init(struct rpc_task *task, struct rpc_xprt *xprt) void xprt_release(struct rpc_task *task) { struct rpc_xprt *xprt; - struct rpc_rqst *req; + struct rpc_rqst *req = task->tk_rqstp; - if (!(req = task->tk_rqstp)) + if (req == NULL) { + if (task->tk_client) { + rcu_read_lock(); + xprt = rcu_dereference(task->tk_client->cl_xprt); + if (xprt->snd_task == task) + xprt_release_write(xprt, task); + rcu_read_unlock(); + } return; + } xprt = req->rq_xprt; if (task->tk_ops->rpc_count_stats != NULL) -- cgit v0.10.2 From 120f80518125b8c312007a54106759d608487553 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 2 Jan 2013 15:32:00 +0000 Subject: regmap: debugfs: Fix attempts to read nonexistant register blocks Return the start of the last block we tried to read rather than a position, and also make sure we update the byte position while we're at it. Without this reads that go into nonexistant areas get confused. Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index 07aad78..43d51dc 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -108,7 +108,8 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map, return c->base_reg; } - ret = c->max; + *pos = c->min; + ret = c->base_reg; } return ret; -- cgit v0.10.2 From 5a1d6d172bc8a3ecf29add6c84d047025cb71566 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 8 Jan 2013 20:40:19 +0000 Subject: regmap: debugfs: Fix check for block start in cached seeks Check for the block we were asked to start from, not the position we're in. Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index 43d51dc..e8d15db 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -103,7 +103,7 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map, /* Find the relevant block */ list_for_each_entry(c, &map->debugfs_off_cache, list) { - if (*pos >= c->min && *pos <= c->max) { + if (from >= c->min && from <= c->max) { *pos = c->min; return c->base_reg; } -- cgit v0.10.2 From 95f971c745a343255744703dc4ae8d78508519cc Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 8 Jan 2013 13:35:58 +0000 Subject: regmap: debugfs: Discard the cache if we fail to allocate an entry Rather than trying to soldier on with a partially allocated cache just throw the cache away and pretend we don't have one in case we can get a full cache next time around. Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index e8d15db..9099cd3 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -56,6 +56,19 @@ static const struct file_operations regmap_name_fops = { .llseek = default_llseek, }; +static void regmap_debugfs_free_dump_cache(struct regmap *map) +{ + struct regmap_debugfs_off_cache *c; + + while (!list_empty(&map->debugfs_off_cache)) { + c = list_first_entry(&map->debugfs_off_cache, + struct regmap_debugfs_off_cache, + list); + list_del(&c->list); + kfree(c); + } +} + /* * Work out where the start offset maps into register numbers, bearing * in mind that we suppress hidden registers. @@ -91,8 +104,10 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map, /* No cache entry? Start a new one */ if (!c) { c = kzalloc(sizeof(*c), GFP_KERNEL); - if (!c) - break; + if (!c) { + regmap_debugfs_free_dump_cache(map); + return base; + } c->min = p; c->base_reg = i; } @@ -388,16 +403,8 @@ void regmap_debugfs_init(struct regmap *map, const char *name) void regmap_debugfs_exit(struct regmap *map) { - struct regmap_debugfs_off_cache *c; - debugfs_remove_recursive(map->debugfs); - while (!list_empty(&map->debugfs_off_cache)) { - c = list_first_entry(&map->debugfs_off_cache, - struct regmap_debugfs_off_cache, - list); - list_del(&c->list); - kfree(c); - } + regmap_debugfs_free_dump_cache(map); kfree(map->debugfs_name); } -- cgit v0.10.2 From 5bd9f4bb34c16b62725b9486a290c01b1fdfec1c Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 8 Jan 2013 13:44:50 +0000 Subject: regmap: debugfs: Ensure a correct return value for empty caches This should never happen in the real world. Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index 9099cd3..720e1424 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -116,6 +116,16 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map, } } + /* + * This should never happen; we return above if we fail to + * allocate and we should never be in this code if there are + * no registers at all. + */ + if (list_empty(&map->debugfs_off_cache)) { + WARN_ON(list_empty(&map->debugfs_off_cache)); + return base; + } + /* Find the relevant block */ list_for_each_entry(c, &map->debugfs_off_cache, list) { if (from >= c->min && from <= c->max) { -- cgit v0.10.2 From e8d6539c8a94b88fc7ca5d6bdd9eeb0e64b434e4 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 8 Jan 2013 18:47:52 +0000 Subject: regmap: debugfs: Make sure we store the last entry in the offset cache Signed-off-by: Mark Brown diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index 720e1424..46a213a 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -116,6 +116,15 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map, } } + /* Close the last entry off if we didn't scan beyond it */ + if (c) { + c->max = p - 1; + list_add_tail(&c->list, + &map->debugfs_off_cache); + } else { + return base; + } + /* * This should never happen; we return above if we fail to * allocate and we should never be in this code if there are -- cgit v0.10.2 From 18a9df42d53fabfa43b78be1104838cc8b9762e1 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 17 Dec 2012 09:53:32 +0100 Subject: target: use correct sense code for LUN communication failure The ASC/ASCQ code for 'Logical Unit Communication failure' is 0x08/0x00; 0x80/0x00 is vendor specific. Signed-off-by: Hannes Reinecke Cc: Nicholas Bellinger Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index c23c76c..978762d 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -2743,7 +2743,7 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd, /* ILLEGAL REQUEST */ buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST; /* LOGICAL UNIT COMMUNICATION FAILURE */ - buffer[SPC_ASC_KEY_OFFSET] = 0x80; + buffer[SPC_ASC_KEY_OFFSET] = 0x08; break; } /* -- cgit v0.10.2 From c9be4a5c49cf51cc70a993f004c5bb30067a65ce Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Mon, 7 Jan 2013 21:17:00 +0000 Subject: net: prevent setting ttl=0 via IP_TTL A regression is introduced by the following commit: commit 4d52cfbef6266092d535237ba5a4b981458ab171 Author: Eric Dumazet Date: Tue Jun 2 00:42:16 2009 -0700 net: ipv4/ip_sockglue.c cleanups Pure cleanups but it is not a pure cleanup... - if (val != -1 && (val < 1 || val>255)) + if (val != -1 && (val < 0 || val > 255)) Since there is no reason provided to allow ttl=0, change it back. Reported-by: nitin padalia Cc: nitin padalia Cc: Eric Dumazet Cc: David S. Miller Signed-off-by: Cong Wang Acked-by: Eric Dumazet Signed-off-by: David S. Miller diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index 3c9d208..d9c4f11 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -590,7 +590,7 @@ static int do_ip_setsockopt(struct sock *sk, int level, case IP_TTL: if (optlen < 1) goto e_inval; - if (val != -1 && (val < 0 || val > 255)) + if (val != -1 && (val < 1 || val > 255)) goto e_inval; inet->uc_ttl = val; break; -- cgit v0.10.2 From d7dab4dbbb2d1b0c903378d6bade2e4ae161804e Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 8 Jan 2013 13:51:30 +0100 Subject: ALSA: hda - Disable runtime D3 for Intel CPT & co We've got a few bug reports that the runtime D3 results in the dead HD-audio controller. It seems that the problem is in a deeper level than the sound driver itself, so as a temporal solution, disable the feature for these controllers again. Reported-and-tested-by: Vincent Blut Reported-and-tested-by: Maurizio Avogadro Cc: [v3.7] Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index cca8727..0b6aeba 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -573,9 +573,12 @@ enum { #define AZX_DCAPS_PM_RUNTIME (1 << 26) /* runtime PM support */ /* quirks for Intel PCH */ -#define AZX_DCAPS_INTEL_PCH \ +#define AZX_DCAPS_INTEL_PCH_NOPM \ (AZX_DCAPS_SCH_SNOOP | AZX_DCAPS_BUFSIZE | \ - AZX_DCAPS_COUNT_LPIB_DELAY | AZX_DCAPS_PM_RUNTIME) + AZX_DCAPS_COUNT_LPIB_DELAY) + +#define AZX_DCAPS_INTEL_PCH \ + (AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_PM_RUNTIME) /* quirks for ATI SB / AMD Hudson */ #define AZX_DCAPS_PRESET_ATI_SB \ @@ -3586,13 +3589,13 @@ static void azx_remove(struct pci_dev *pci) static DEFINE_PCI_DEVICE_TABLE(azx_ids) = { /* CPT */ { PCI_DEVICE(0x8086, 0x1c20), - .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH }, + .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM }, /* PBG */ { PCI_DEVICE(0x8086, 0x1d20), - .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH }, + .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM }, /* Panther Point */ { PCI_DEVICE(0x8086, 0x1e20), - .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH }, + .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM }, /* Lynx Point */ { PCI_DEVICE(0x8086, 0x8c20), .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH }, -- cgit v0.10.2 From 7ed4165e2d01bdbbb4c1086eb73eadf0f64cbbf0 Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Wed, 19 Dec 2012 09:44:47 +0100 Subject: Revert "ALSA: hda - Shut up pins at power-saving mode with Conexnat codecs" This reverts commit 697c373e34613609cb5450f98b91fefb6e910588. The original patch was meant to remove clicking, but in fact caused even more clicking instead. Thanks to c4pp4 for doing most of the work with this bug. BugLink: https://bugs.launchpad.net/bugs/886975 Signed-off-by: David Henningsson Cc: Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 60890bf..dd798c3 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -558,24 +558,12 @@ static int conexant_build_controls(struct hda_codec *codec) return 0; } -#ifdef CONFIG_PM -static int conexant_suspend(struct hda_codec *codec) -{ - snd_hda_shutup_pins(codec); - return 0; -} -#endif - static const struct hda_codec_ops conexant_patch_ops = { .build_controls = conexant_build_controls, .build_pcms = conexant_build_pcms, .init = conexant_init, .free = conexant_free, .set_power_state = conexant_set_power, -#ifdef CONFIG_PM - .suspend = conexant_suspend, -#endif - .reboot_notify = snd_hda_shutup_pins, }; #ifdef CONFIG_SND_HDA_INPUT_BEEP @@ -4405,10 +4393,6 @@ static const struct hda_codec_ops cx_auto_patch_ops = { .init = cx_auto_init, .free = conexant_free, .unsol_event = snd_hda_jack_unsol_event, -#ifdef CONFIG_PM - .suspend = conexant_suspend, -#endif - .reboot_notify = snd_hda_shutup_pins, }; /* -- cgit v0.10.2 From ca320ac456099c29290568353d924157e626ede9 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 19 Dec 2012 12:14:22 +0000 Subject: drm/i915: Use pixel size for computing linear offsets into a sprite MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes an original bug in the sprite code that miscomputed the source offset into a linear YUV packed framebuffer, that was magnified into an oops with commit 5a35e99e8162d6820013a56ad15ea8bf937af5a6 Author: Damien Lespiau Date: Fri Oct 26 18:20:12 2012 +0100 drm/i915: adjust sprite base address Signed-off-by: Chris Wilson Cc: Daniel Vetter Cc: Damien Lespiau Cc: Ville Syrjälä Reviewed-by: Ville Syrjälä Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index 827dcd4..d7b060e 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -120,11 +120,10 @@ ivb_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb, I915_WRITE(SPRSTRIDE(pipe), fb->pitches[0]); I915_WRITE(SPRPOS(pipe), (crtc_y << 16) | crtc_x); - linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); + linear_offset = y * fb->pitches[0] + x * pixel_size; sprsurf_offset = intel_gen4_compute_offset_xtiled(&x, &y, - fb->bits_per_pixel / 8, - fb->pitches[0]); + pixel_size, fb->pitches[0]); linear_offset -= sprsurf_offset; /* HSW consolidates SPRTILEOFF and SPRLINOFF into a single SPROFFSET @@ -286,11 +285,10 @@ ilk_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb, I915_WRITE(DVSSTRIDE(pipe), fb->pitches[0]); I915_WRITE(DVSPOS(pipe), (crtc_y << 16) | crtc_x); - linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8); + linear_offset = y * fb->pitches[0] + x * pixel_size; dvssurf_offset = intel_gen4_compute_offset_xtiled(&x, &y, - fb->bits_per_pixel / 8, - fb->pitches[0]); + pixel_size, fb->pitches[0]); linear_offset -= dvssurf_offset; if (obj->tiling_mode != I915_TILING_NONE) -- cgit v0.10.2 From 56bde0f328428f2fc6e416510d8b42de6a0cfad5 Mon Sep 17 00:00:00 2001 From: Andre Schramm Date: Wed, 9 Jan 2013 14:40:18 +0100 Subject: ALSA: hdspm - Fix wordclock status on AES32 Use correct bitmask for AES32 cards to determine wordclock lock state, add missing bitmask for sync check and make output of the corresponding control and /proc coherent. Signed-off-by: Andre Schramm Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 6e02e06..223c3d9 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -441,6 +441,7 @@ MODULE_SUPPORTED_DEVICE("{{RME HDSPM-MADI}}"); */ /* status */ #define HDSPM_AES32_wcLock 0x0200000 +#define HDSPM_AES32_wcSync 0x0100000 #define HDSPM_AES32_wcFreq_bit 22 /* (status >> HDSPM_AES32_wcFreq_bit) & 0xF gives WC frequency (cf function HDSPM_bit2freq */ @@ -3467,10 +3468,12 @@ static int hdspm_wc_sync_check(struct hdspm *hdspm) switch (hdspm->io_type) { case AES32: status = hdspm_read(hdspm, HDSPM_statusRegister); - if (status & HDSPM_wcSync) - return 2; - else if (status & HDSPM_wcLock) - return 1; + if (status & HDSPM_AES32_wcLock) { + if (status & HDSPM_AES32_wcSync) + return 2; + else + return 1; + } return 0; break; @@ -4658,6 +4661,7 @@ snd_hdspm_proc_read_aes32(struct snd_info_entry * entry, unsigned int status; unsigned int status2; unsigned int timecode; + unsigned int wcLock, wcSync; int pref_syncref; char *autosync_ref; int x; @@ -4751,8 +4755,11 @@ snd_hdspm_proc_read_aes32(struct snd_info_entry * entry, snd_iprintf(buffer, "--- Status:\n"); + wcLock = status & HDSPM_AES32_wcLock; + wcSync = wcLock && (status & HDSPM_AES32_wcSync); + snd_iprintf(buffer, "Word: %s Frequency: %d\n", - (status & HDSPM_AES32_wcLock) ? "Sync " : "No Lock", + (wcLock) ? (wcSync ? "Sync " : "Lock ") : "No Lock", HDSPM_bit2freq((status >> HDSPM_AES32_wcFreq_bit) & 0xF)); for (x = 0; x < 8; x++) { -- cgit v0.10.2 From a8dd2176a8e988e3744e863ac39647a6f59fa900 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Wed, 9 Jan 2013 20:54:17 -0500 Subject: tracing: Fix regression of trace_options file setting The latest change to allow trace options to be set on the command line also broke the trace_options file. The zeroing of the last byte of the option name that is echoed into the trace_option file was removed with the consolidation of some of the code. The compare between the option and what was written to the trace_options file fails because the string holding the data written doesn't terminate with a null character. A zero needs to be added to the end of the string copied from user space. Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index e512567..1bbfa04 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2899,6 +2899,8 @@ tracing_trace_options_write(struct file *filp, const char __user *ubuf, if (copy_from_user(&buf, ubuf, cnt)) return -EFAULT; + buf[cnt] = 0; + trace_set_options(buf); *ppos += cnt; -- cgit v0.10.2 From 08245ad87e2970ac56987caab5cd5900563db4e1 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Mon, 31 Dec 2012 00:04:59 -0800 Subject: hwmon: (vexpress) Fix build error seen if CONFIG_OF_DEVICE is not set MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: vexpress.c: In function ‘vexpress_hwmon_name_show’: vexpress.c:34:2: error: implicit declaration of function ‘of_get_property’ [-Werror=implicit-function-declaration] vexpress.c:34:27: warning: initialization makes pointer from integer without a cast [enabled by default] vexpress.c: In function ‘vexpress_hwmon_label_show’: vexpress.c:43:22: warning: initialization makes pointer from integer without a cast [enabled by default] Seen if CONFIG_OF_DEVICE is not defined. of_get_property is declared in of.h which is only included by of_device.h if CONFIG_OF_DEVICE is defined. of.h needs to be included directly. Signed-off-by: Guenter Roeck diff --git a/drivers/hwmon/vexpress.c b/drivers/hwmon/vexpress.c index 86d7f6d..d867e6b 100644 --- a/drivers/hwmon/vexpress.c +++ b/drivers/hwmon/vexpress.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include -- cgit v0.10.2 From e8e7da23c9add6f636bcc631aeb4461ffb99f77f Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Thu, 10 Jan 2013 11:19:14 +0530 Subject: ALSA: usb-audio: Make ebox44_table static Fixes the following sparse warning: sound/usb/mixer_quirks.c:1209:23: warning: symbol 'ebox44_table' was not declared. Should it be static? Signed-off-by: Sachin Kamat Signed-off-by: Takashi Iwai diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index 0422b13..15520de 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -1206,7 +1206,7 @@ static int snd_c400_create_mixer(struct usb_mixer_interface *mixer) * are valid they presents mono controls as L and R channels of * stereo. So we provide a good mixer here. */ -struct std_mono_table ebox44_table[] = { +static struct std_mono_table ebox44_table[] = { { .unitid = 4, .control = 1, -- cgit v0.10.2 From 065380f0880dd651eb405430745926dc4747b759 Mon Sep 17 00:00:00 2001 From: Kailang Yang Date: Thu, 10 Jan 2013 10:25:48 +0100 Subject: ALSA: hda - Add support of new codec ALC284 Added the support for a new codec ALC284, which is compatible with ALC269. Also add more codec variants to handle the SSID check properly. Signed-off-by: Kailang Yang Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 71ae23d..f519627 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -5817,6 +5817,9 @@ enum { ALC269_TYPE_ALC269VB, ALC269_TYPE_ALC269VC, ALC269_TYPE_ALC269VD, + ALC269_TYPE_ALC280, + ALC269_TYPE_ALC282, + ALC269_TYPE_ALC284, }; /* @@ -5833,10 +5836,13 @@ static int alc269_parse_auto_config(struct hda_codec *codec) switch (spec->codec_variant) { case ALC269_TYPE_ALC269VA: case ALC269_TYPE_ALC269VC: + case ALC269_TYPE_ALC280: + case ALC269_TYPE_ALC284: ssids = alc269va_ssids; break; case ALC269_TYPE_ALC269VB: case ALC269_TYPE_ALC269VD: + case ALC269_TYPE_ALC282: ssids = alc269_ssids; break; default: @@ -6400,7 +6406,8 @@ static int patch_alc269(struct hda_codec *codec) alc_auto_parse_customize_define(codec); - if (codec->vendor_id == 0x10ec0269) { + switch (codec->vendor_id) { + case 0x10ec0269: spec->codec_variant = ALC269_TYPE_ALC269VA; switch (alc_get_coef0(codec) & 0x00f0) { case 0x0010: @@ -6425,6 +6432,20 @@ static int patch_alc269(struct hda_codec *codec) goto error; spec->init_hook = alc269_fill_coef; alc269_fill_coef(codec); + break; + + case 0x10ec0280: + case 0x10ec0290: + spec->codec_variant = ALC269_TYPE_ALC280; + break; + case 0x10ec0282: + case 0x10ec0283: + spec->codec_variant = ALC269_TYPE_ALC282; + break; + case 0x10ec0284: + case 0x10ec0292: + spec->codec_variant = ALC269_TYPE_ALC284; + break; } /* automatic parse from the BIOS config */ @@ -7129,6 +7150,7 @@ static const struct hda_codec_preset snd_hda_preset_realtek[] = { { .id = 0x10ec0280, .name = "ALC280", .patch = patch_alc269 }, { .id = 0x10ec0282, .name = "ALC282", .patch = patch_alc269 }, { .id = 0x10ec0283, .name = "ALC283", .patch = patch_alc269 }, + { .id = 0x10ec0284, .name = "ALC284", .patch = patch_alc269 }, { .id = 0x10ec0290, .name = "ALC290", .patch = patch_alc269 }, { .id = 0x10ec0292, .name = "ALC292", .patch = patch_alc269 }, { .id = 0x10ec0861, .rev = 0x100340, .name = "ALC660", -- cgit v0.10.2 From bdba0051ebcb3c6372f9cc0b2524c47cc6ce46fd Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Mon, 7 Jan 2013 16:12:31 +0000 Subject: arm64: vdso: remove broken, redundant sequence counting for timezones This patch is an arm64 version of ce73ec6db47a ("powerpc/vdso: Remove redundant locking in update_vsyscall_tz()"). Timezone data is not protected, so the sequence counter is not required to ensure consistency. Furthermore, having multiple paths updating the counter leads to a race between update_vsyscall and update_vsyscall_tz, so remove the timezone sequence counting from both the kernel and the vdso. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c index c958cb8..6a389dc 100644 --- a/arch/arm64/kernel/vdso.c +++ b/arch/arm64/kernel/vdso.c @@ -252,10 +252,6 @@ void update_vsyscall(struct timekeeper *tk) void update_vsyscall_tz(void) { - ++vdso_data->tb_seq_count; - smp_wmb(); vdso_data->tz_minuteswest = sys_tz.tz_minuteswest; vdso_data->tz_dsttime = sys_tz.tz_dsttime; - smp_wmb(); - ++vdso_data->tb_seq_count; } diff --git a/arch/arm64/kernel/vdso/gettimeofday.S b/arch/arm64/kernel/vdso/gettimeofday.S index 8bf658d..f0a6d10 100644 --- a/arch/arm64/kernel/vdso/gettimeofday.S +++ b/arch/arm64/kernel/vdso/gettimeofday.S @@ -73,8 +73,6 @@ ENTRY(__kernel_gettimeofday) /* If tz is NULL, return 0. */ cbz x1, 3f ldp w4, w5, [vdso_data, #VDSO_TZ_MINWEST] - seqcnt_read w9 - seqcnt_check w9, 1b stp w4, w5, [x1, #TZ_MINWEST] 3: mov x0, xzr -- cgit v0.10.2 From 02522463c84748b3b8ad770f9424bcfa70a5b4c4 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 9 Jan 2013 11:08:10 +0000 Subject: arm64: mm: only wrprotect clean ptes if they are present Marking non-present ptes as read-only can corrupt file ptes, breaking things like swap and file mappings. This patch ensures that we only manipulate user pte bits when the pte is marked present. Cc: Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 64b1339..7adf414 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -132,9 +132,8 @@ extern struct page *empty_zero_page; #define pte_write(pte) (!(pte_val(pte) & PTE_RDONLY)) #define pte_exec(pte) (!(pte_val(pte) & PTE_UXN)) -#define pte_present_exec_user(pte) \ - ((pte_val(pte) & (PTE_VALID | PTE_USER | PTE_UXN)) == \ - (PTE_VALID | PTE_USER)) +#define pte_present_user(pte) \ + ((pte_val(pte) & (PTE_VALID | PTE_USER)) == (PTE_VALID | PTE_USER)) #define PTE_BIT_FUNC(fn,op) \ static inline pte_t pte_##fn(pte_t pte) { pte_val(pte) op; return pte; } @@ -157,10 +156,13 @@ extern void __sync_icache_dcache(pte_t pteval, unsigned long addr); static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte) { - if (pte_present_exec_user(pte)) - __sync_icache_dcache(pte, addr); - if (!pte_dirty(pte)) - pte = pte_wrprotect(pte); + if (pte_present_user(pte)) { + if (pte_exec(pte)) + __sync_icache_dcache(pte, addr); + if (!pte_dirty(pte)) + pte = pte_wrprotect(pte); + } + set_pte(ptep, pte); } -- cgit v0.10.2 From a6fadf7e67d3794aae40244f435d281a62736c93 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Tue, 18 Dec 2012 14:15:15 +0000 Subject: arm64: mm: introduce present, faulting entries for PAGE_NONE This is mostly a port of dbf62d50067e ("ARM: mm: introduce L_PTE_VALID for page table entries") and 26ffd0d43b18 ("ARM: mm: introduce present, faulting entries for PAGE_NONE") from ARM, which makes use of present, faulting page table entries for page table entries mapped as PROT_NONE. The main difference with this implementation is that we can make use of the two pte type bits in order to avoid allocating a software bit for identifying PROT_NONE pages, instead reserving the 10b suffix for these types of mappings. This is required to prevent users from accessing such pages via syscalls such as read/write over a pipe. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 7adf414..e333a24 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -24,7 +24,8 @@ /* * Software defined PTE bits definition. */ -#define PTE_VALID (_AT(pteval_t, 1) << 0) /* pte_present() check */ +#define PTE_VALID (_AT(pteval_t, 1) << 0) +#define PTE_PROT_NONE (_AT(pteval_t, 1) << 1) /* only when !PTE_VALID */ #define PTE_FILE (_AT(pteval_t, 1) << 2) /* only when !pte_present() */ #define PTE_DIRTY (_AT(pteval_t, 1) << 55) #define PTE_SPECIAL (_AT(pteval_t, 1) << 56) @@ -60,9 +61,12 @@ extern void __pgd_error(const char *file, int line, unsigned long val); extern pgprot_t pgprot_default; -#define _MOD_PROT(p, b) __pgprot(pgprot_val(p) | (b)) +#define __pgprot_modify(prot,mask,bits) \ + __pgprot((pgprot_val(prot) & ~(mask)) | (bits)) + +#define _MOD_PROT(p, b) __pgprot_modify(p, 0, b) -#define PAGE_NONE _MOD_PROT(pgprot_default, PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY) +#define PAGE_NONE __pgprot_modify(pgprot_default, PTE_TYPE_MASK, PTE_PROT_NONE) #define PAGE_SHARED _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN) #define PAGE_SHARED_EXEC _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN) #define PAGE_COPY _MOD_PROT(pgprot_default, PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY) @@ -72,7 +76,7 @@ extern pgprot_t pgprot_default; #define PAGE_KERNEL _MOD_PROT(pgprot_default, PTE_PXN | PTE_UXN | PTE_DIRTY) #define PAGE_KERNEL_EXEC _MOD_PROT(pgprot_default, PTE_UXN | PTE_DIRTY) -#define __PAGE_NONE __pgprot(_PAGE_DEFAULT | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY) +#define __PAGE_NONE __pgprot(((_PAGE_DEFAULT) & ~PTE_TYPE_MASK) | PTE_PROT_NONE) #define __PAGE_SHARED __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN) #define __PAGE_SHARED_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN) #define __PAGE_COPY __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_RDONLY) @@ -125,14 +129,14 @@ extern struct page *empty_zero_page; /* * The following only work if pte_present(). Undefined behaviour otherwise. */ -#define pte_present(pte) (pte_val(pte) & PTE_VALID) +#define pte_present(pte) (pte_val(pte) & (PTE_VALID | PTE_PROT_NONE)) #define pte_dirty(pte) (pte_val(pte) & PTE_DIRTY) #define pte_young(pte) (pte_val(pte) & PTE_AF) #define pte_special(pte) (pte_val(pte) & PTE_SPECIAL) #define pte_write(pte) (!(pte_val(pte) & PTE_RDONLY)) #define pte_exec(pte) (!(pte_val(pte) & PTE_UXN)) -#define pte_present_user(pte) \ +#define pte_valid_user(pte) \ ((pte_val(pte) & (PTE_VALID | PTE_USER)) == (PTE_VALID | PTE_USER)) #define PTE_BIT_FUNC(fn,op) \ @@ -156,7 +160,7 @@ extern void __sync_icache_dcache(pte_t pteval, unsigned long addr); static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte) { - if (pte_present_user(pte)) { + if (pte_valid_user(pte)) { if (pte_exec(pte)) __sync_icache_dcache(pte, addr); if (!pte_dirty(pte)) @@ -172,9 +176,6 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, #define pte_huge(pte) ((pte_val(pte) & PTE_TYPE_MASK) == PTE_TYPE_HUGEPAGE) #define pte_mkhuge(pte) (__pte((pte_val(pte) & ~PTE_TYPE_MASK) | PTE_TYPE_HUGEPAGE)) -#define __pgprot_modify(prot,mask,bits) \ - __pgprot((pgprot_val(prot) & ~(mask)) | (bits)) - #define __HAVE_ARCH_PTE_SPECIAL /* @@ -266,7 +267,8 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr) static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { - const pteval_t mask = PTE_USER | PTE_PXN | PTE_UXN | PTE_RDONLY; + const pteval_t mask = PTE_USER | PTE_PXN | PTE_UXN | PTE_RDONLY | + PTE_PROT_NONE | PTE_VALID; pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask); return pte; } -- cgit v0.10.2 From 81d0a6ae7befb24c06f4aa4856af7f8d1f612171 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 9 Jan 2013 19:34:57 +0800 Subject: regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel Use DIV_ROUND_UP to prevent truncation by integer division issue. This ensures we return enough delay time. Signed-off-by: Axel Lin Signed-off-by: Mark Brown Cc: stable@vger.kernel.org diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c index 06be8cc..1f0df40 100644 --- a/drivers/regulator/max8998.c +++ b/drivers/regulator/max8998.c @@ -447,7 +447,7 @@ static int max8998_set_voltage_buck_time_sel(struct regulator_dev *rdev, difference = (new_selector - old_selector) * desc->step / 1000; if (difference > 0) - return difference / ((val & 0x0f) + 1); + return DIV_ROUND_UP(difference, (val & 0x0f) + 1); return 0; } -- cgit v0.10.2 From 93927ca52a55c23e0a6a305e7e9082e8411ac9fa Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Thu, 10 Jan 2013 18:03:00 +0100 Subject: drm/i915: Revert shrinker changes from "Track unbound pages" This partially reverts commit 6c085a728cf000ac1865d66f8c9b52935558b328 Author: Chris Wilson Date: Mon Aug 20 11:40:46 2012 +0200 drm/i915: Track unbound pages Closer inspection of that patch revealed a bunch of unrelated changes in the shrinker: - The shrinker count is now in pages instead of objects. - For counting the shrinkable objects the old code only looked at the inactive list, the new code looks at all bounds objects (including pinned ones). That is obviously in addition to the new unbound list. - The shrinker cound is no longer scaled with sysctl_vfs_cache_pressure. Note though that with the default tuning value of vfs_cache_pressue = 100 this doesn't affect the shrinker behaviour. - When actually shrinking objects, the old code first dropped purgeable objects, then normal (inactive) objects. Only then did it, in a last-ditch effort idle the gpu and evict everything. The new code omits the intermediate step of evicting normal inactive objects. Safe for the first change, which seems benign, and the shrinker count scaling, which is a bit a different story, the endresult of all these changes is that the shrinker is _much_ more likely to fall back to the last-ditch resort of idling the gpu and evicting everything. The old code could only do that if something else evicted lots of objects meanwhile (since without any other changes the nr_to_scan will be smaller than the object count). Reverting the vfs_cache_pressure behaviour itself is a bit bogus: Only dentry/inode object caches should scale their shrinker counts with vfs_cache_pressure. Originally I've had that change reverted, too. But Chris Wilson insisted that it's too bogus and shouldn't again see the light of day. Hence revert all these other changes and restore the old shrinker behaviour, with the minor adjustment that we now first scan the unbound list, then the inactive list for each object category (purgeable or normal). A similar patch has been tested by a few people affected by the gen4/5 hangs which started to appear in 3.7, which some people bisected to the "drm/i915: Track unbound pages" commit. But just disabling the unbound logic alone didn't change things at all. Note that this patch doesn't fix the referenced bugs, it only hides the underlying bug(s) well enough to restore pre-3.7 behaviour. The key to achieve that is to massively reduce the likelyhood of going into a full gpu stall and evicting everything. v2: Reword commit message a bit, taking Chris Wilson's comment into account. v3: On Chris Wilson's insistency, do not reinstate the rather bogus vfs_cache_pressure change. Tested-by: Greg KH Tested-by: Dave Kleikamp References: https://bugs.freedesktop.org/show_bug.cgi?id=55984 References: https://bugs.freedesktop.org/show_bug.cgi?id=57122 References: https://bugs.freedesktop.org/show_bug.cgi?id=56916 References: https://bugs.freedesktop.org/show_bug.cgi?id=57136 Cc: Chris Wilson Cc: stable@vger.kernel.org Acked-by: Chris Wilson Signed-off-by: Daniel Vetter diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 5791ecd..8febea6 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1717,7 +1717,8 @@ i915_gem_object_put_pages(struct drm_i915_gem_object *obj) } static long -i915_gem_purge(struct drm_i915_private *dev_priv, long target) +__i915_gem_shrink(struct drm_i915_private *dev_priv, long target, + bool purgeable_only) { struct drm_i915_gem_object *obj, *next; long count = 0; @@ -1725,7 +1726,7 @@ i915_gem_purge(struct drm_i915_private *dev_priv, long target) list_for_each_entry_safe(obj, next, &dev_priv->mm.unbound_list, gtt_list) { - if (i915_gem_object_is_purgeable(obj) && + if ((i915_gem_object_is_purgeable(obj) || !purgeable_only) && i915_gem_object_put_pages(obj) == 0) { count += obj->base.size >> PAGE_SHIFT; if (count >= target) @@ -1736,7 +1737,7 @@ i915_gem_purge(struct drm_i915_private *dev_priv, long target) list_for_each_entry_safe(obj, next, &dev_priv->mm.inactive_list, mm_list) { - if (i915_gem_object_is_purgeable(obj) && + if ((i915_gem_object_is_purgeable(obj) || !purgeable_only) && i915_gem_object_unbind(obj) == 0 && i915_gem_object_put_pages(obj) == 0) { count += obj->base.size >> PAGE_SHIFT; @@ -1748,6 +1749,12 @@ i915_gem_purge(struct drm_i915_private *dev_priv, long target) return count; } +static long +i915_gem_purge(struct drm_i915_private *dev_priv, long target) +{ + return __i915_gem_shrink(dev_priv, target, true); +} + static void i915_gem_shrink_all(struct drm_i915_private *dev_priv) { @@ -4396,6 +4403,9 @@ i915_gem_inactive_shrink(struct shrinker *shrinker, struct shrink_control *sc) if (nr_to_scan) { nr_to_scan -= i915_gem_purge(dev_priv, nr_to_scan); if (nr_to_scan > 0) + nr_to_scan -= __i915_gem_shrink(dev_priv, nr_to_scan, + false); + if (nr_to_scan > 0) i915_gem_shrink_all(dev_priv); } @@ -4403,7 +4413,7 @@ i915_gem_inactive_shrink(struct shrinker *shrinker, struct shrink_control *sc) list_for_each_entry(obj, &dev_priv->mm.unbound_list, gtt_list) if (obj->pages_pin_count == 0) cnt += obj->base.size >> PAGE_SHIFT; - list_for_each_entry(obj, &dev_priv->mm.bound_list, gtt_list) + list_for_each_entry(obj, &dev_priv->mm.inactive_list, gtt_list) if (obj->pin_count == 0 && obj->pages_pin_count == 0) cnt += obj->base.size >> PAGE_SHIFT; -- cgit v0.10.2 From 54b956b903607f8f8878754dd4352da6a54a1da2 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 10 Jan 2013 10:57:01 -0800 Subject: Remove __dev* markings from init.h Now that all in-kernel users of __dev* are gone, let's remove them from init.h to keep them from popping up again and again. Thanks to Bill Pemberton for doing all of the hard work to make removal of this possible. Cc: Bill Pemberton Cc: Stephen Rothwell Signed-off-by: Greg Kroah-Hartman diff --git a/include/linux/init.h b/include/linux/init.h index a799273..10ed4f4 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -93,14 +93,6 @@ #define __exit __section(.exit.text) __exitused __cold notrace -/* Used for HOTPLUG, but that is always enabled now, so just make them noops */ -#define __devinit -#define __devinitdata -#define __devinitconst -#define __devexit -#define __devexitdata -#define __devexitconst - /* Used for HOTPLUG_CPU */ #define __cpuinit __section(.cpuinit.text) __cold notrace #define __cpuinitdata __section(.cpuinit.data) @@ -337,18 +329,6 @@ void __init parse_early_options(char *cmdline); #define __INITRODATA_OR_MODULE __INITRODATA #endif /*CONFIG_MODULES*/ -/* Functions marked as __devexit may be discarded at kernel link time, depending - on config options. Newer versions of binutils detect references from - retained sections to discarded sections and flag an error. Pointers to - __devexit functions must use __devexit_p(function_name), the wrapper will - insert either the function_name or NULL, depending on the config options. - */ -#if defined(MODULE) || defined(CONFIG_HOTPLUG) -#define __devexit_p(x) x -#else -#define __devexit_p(x) NULL -#endif - #ifdef MODULE #define __exit_p(x) x #else -- cgit v0.10.2 From 83987ace22f541964bd0dbf83a3f6b0014ba3e1e Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Tue, 8 Jan 2013 16:23:10 +0100 Subject: s390/kvm: Fix BUG in include/linux/kvm_host.h:745 commit b080935c8638e08134629d0a9ebdf35669bec14d kvm: Directly account vtime to system on guest switch also removed the irq_disable/enable around kvm guest switch, which is correct in itself. Unfortunately, there is a BUG ON that (correctly) checks for preemptible to cover the call to rcu later on. (Introduced with commit 8fa2206821953a50a3a02ea33fcfb3ced2fd9997 KVM: make guest mode entry to be rcu quiescent state) This check might trigger depending on the kernel config. Lets make sure that no preemption happens during kvm_guest_enter. We can enable preemption again after the call to rcu_virt_note_context_switch returns. Please note that we continue to run s390 guests with interrupts enabled. Acked-by: Frederic Weisbecker CC: Gleb Natapov Signed-off-by: Christian Borntraeger Signed-off-by: Marcelo Tosatti diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index c9011bf..f090e81 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -613,7 +613,9 @@ static int __vcpu_run(struct kvm_vcpu *vcpu) kvm_s390_deliver_pending_interrupts(vcpu); vcpu->arch.sie_block->icptcode = 0; + preempt_disable(); kvm_guest_enter(); + preempt_enable(); VCPU_EVENT(vcpu, 6, "entering sie flags %x", atomic_read(&vcpu->arch.sie_block->cpuflags)); trace_kvm_s390_sie_enter(vcpu, -- cgit v0.10.2 From ff4bd0827764e10a428a9d39e6814c5478863f94 Mon Sep 17 00:00:00 2001 From: Ilija Hadzic Date: Mon, 7 Jan 2013 18:21:57 -0500 Subject: drm/radeon: fix NULL pointer dereference in UMS mode In UMS mode parser->rdev is NULL, so dereferencing will cause an oops. Signed-off-by: Ilija Hadzic Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 396baba..45151c4 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -279,7 +279,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) p->chunks[p->chunk_ib_idx].length_dw); return -EINVAL; } - if ((p->rdev->flags & RADEON_IS_AGP)) { + if (p->rdev && (p->rdev->flags & RADEON_IS_AGP)) { p->chunks[p->chunk_ib_idx].kpage[0] = kmalloc(PAGE_SIZE, GFP_KERNEL); p->chunks[p->chunk_ib_idx].kpage[1] = kmalloc(PAGE_SIZE, GFP_KERNEL); if (p->chunks[p->chunk_ib_idx].kpage[0] == NULL || @@ -583,7 +583,8 @@ static int radeon_cs_update_pages(struct radeon_cs_parser *p, int pg_idx) struct radeon_cs_chunk *ibc = &p->chunks[p->chunk_ib_idx]; int i; int size = PAGE_SIZE; - bool copy1 = (p->rdev->flags & RADEON_IS_AGP) ? false : true; + bool copy1 = (p->rdev && (p->rdev->flags & RADEON_IS_AGP)) ? + false : true; for (i = ibc->last_copied_page + 1; i < pg_idx; i++) { if (DRM_COPY_FROM_USER(p->ib.ptr + (i * (PAGE_SIZE/4)), -- cgit v0.10.2 From a6b7e1a02b77ab8fe8775d20a88c53d8ba55482e Mon Sep 17 00:00:00 2001 From: Ilija Hadzic Date: Mon, 7 Jan 2013 18:21:58 -0500 Subject: drm/radeon: fix a bogus kfree parser->chunks[.].kpage[.] is not always kmalloc-ed by the parser initialization, so parser_fini should not try to kfree it if it didn't allocate it. This patch fixes a kernel oops that can be provoked in UMS mode. Signed-off-by: Ilija Hadzic Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c index 03191a5..6858a40 100644 --- a/drivers/gpu/drm/radeon/r600_cs.c +++ b/drivers/gpu/drm/radeon/r600_cs.c @@ -2476,8 +2476,10 @@ static void r600_cs_parser_fini(struct radeon_cs_parser *parser, int error) kfree(parser->relocs); for (i = 0; i < parser->nchunks; i++) { kfree(parser->chunks[i].kdata); - kfree(parser->chunks[i].kpage[0]); - kfree(parser->chunks[i].kpage[1]); + if (parser->rdev && (parser->rdev->flags & RADEON_IS_AGP)) { + kfree(parser->chunks[i].kpage[0]); + kfree(parser->chunks[i].kpage[1]); + } } kfree(parser->chunks); kfree(parser->chunks_array); -- cgit v0.10.2 From 25d8999780f8c1f53928f4a24a09c01550423109 Mon Sep 17 00:00:00 2001 From: Ilija Hadzic Date: Mon, 7 Jan 2013 18:21:59 -0500 Subject: drm/radeon: fix error path in kpage allocation Index into chunks[] array doesn't look right. Signed-off-by: Ilija Hadzic Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 45151c4..469661f 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -284,8 +284,8 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) p->chunks[p->chunk_ib_idx].kpage[1] = kmalloc(PAGE_SIZE, GFP_KERNEL); if (p->chunks[p->chunk_ib_idx].kpage[0] == NULL || p->chunks[p->chunk_ib_idx].kpage[1] == NULL) { - kfree(p->chunks[i].kpage[0]); - kfree(p->chunks[i].kpage[1]); + kfree(p->chunks[p->chunk_ib_idx].kpage[0]); + kfree(p->chunks[p->chunk_ib_idx].kpage[1]); return -ENOMEM; } } -- cgit v0.10.2 From 51861d4eebc2ddc25c77084343d060fa79f6e291 Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Tue, 8 Jan 2013 18:41:01 -0500 Subject: radeon/kms: force rn50 chip to always report connected on analog output Those rn50 chip are often connected to console remoting hw and load detection often fails with those. Just don't try to load detect and report connect. Signed-off-by: Jerome Glisse Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index f5ba224..62cd512 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -640,6 +640,14 @@ static enum drm_connector_status radeon_legacy_primary_dac_detect(struct drm_enc enum drm_connector_status found = connector_status_disconnected; bool color = true; + /* just don't bother on RN50 those chip are often connected to remoting + * console hw and often we get failure to load detect those. So to make + * everyone happy report the encoder as always connected. + */ + if (ASIC_IS_RN50(rdev)) { + return connector_status_connected; + } + /* save the regs we need */ vclk_ecp_cntl = RREG32_PLL(RADEON_VCLK_ECP_CNTL); crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL); -- cgit v0.10.2 From 9305ede6afe2998b391cd225e02a18f37d62028e Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Wed, 9 Jan 2013 16:40:42 -0500 Subject: radeon/kms: fix dma relocation checking We were checking the index against the size of the relocation buffer instead of against the last index. This fix kernel segfault when userspace submit ill formated command stream/relocation buffer pair. Signed-off-by: Jerome Glisse Signed-off-by: Alex Deucher diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c index 6858a40..69ec24a 100644 --- a/drivers/gpu/drm/radeon/r600_cs.c +++ b/drivers/gpu/drm/radeon/r600_cs.c @@ -2563,16 +2563,16 @@ int r600_dma_cs_next_reloc(struct radeon_cs_parser *p, struct radeon_cs_chunk *relocs_chunk; unsigned idx; + *cs_reloc = NULL; if (p->chunk_relocs_idx == -1) { DRM_ERROR("No relocation chunk !\n"); return -EINVAL; } - *cs_reloc = NULL; relocs_chunk = &p->chunks[p->chunk_relocs_idx]; idx = p->dma_reloc_idx; - if (idx >= relocs_chunk->length_dw) { + if (idx >= p->nrelocs) { DRM_ERROR("Relocs at %d after relocations chunk end %d !\n", - idx, relocs_chunk->length_dw); + idx, p->nrelocs); return -EINVAL; } *cs_reloc = p->relocs_ptr[idx]; -- cgit v0.10.2 From ff905b1e4aad8ccbbb0d42f7137f19482742ff07 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 10 Jan 2013 07:06:10 +0000 Subject: tcp: splice: fix an infinite loop in tcp_read_sock() commit 02275a2ee7c0 (tcp: don't abort splice() after small transfers) added a regression. [ 83.843570] INFO: rcu_sched self-detected stall on CPU [ 83.844575] INFO: rcu_sched detected stalls on CPUs/tasks: { 6} (detected by 0, t=21002 jiffies, g=4457, c=4456, q=13132) [ 83.844582] Task dump for CPU 6: [ 83.844584] netperf R running task 0 8966 8952 0x0000000c [ 83.844587] 0000000000000000 0000000000000006 0000000000006c6c 0000000000000000 [ 83.844589] 000000000000006c 0000000000000096 ffffffff819ce2bc ffffffffffffff10 [ 83.844592] ffffffff81088679 0000000000000010 0000000000000246 ffff880c4b9ddcd8 [ 83.844594] Call Trace: [ 83.844596] [] ? vprintk_emit+0x1c9/0x4c0 [ 83.844601] [] ? schedule+0x29/0x70 [ 83.844606] [] ? tcp_splice_data_recv+0x42/0x50 [ 83.844610] [] ? tcp_read_sock+0xda/0x260 [ 83.844613] [] ? tcp_prequeue_process+0xb0/0xb0 [ 83.844615] [] ? tcp_splice_read+0xc0/0x250 [ 83.844618] [] ? sock_splice_read+0x22/0x30 [ 83.844622] [] ? do_splice_to+0x7b/0xa0 [ 83.844627] [] ? sys_splice+0x59c/0x5d0 [ 83.844630] [] ? putname+0x2b/0x40 [ 83.844633] [] ? do_sys_open+0x174/0x1e0 [ 83.844636] [] ? system_call_fastpath+0x16/0x1b if recv_actor() returns 0, we should stop immediately, because looping wont give a chance to drain the pipe. Signed-off-by: Eric Dumazet Cc: Willy Tarreau Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 1ca2536..5f173dc 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1482,7 +1482,7 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc, break; } used = recv_actor(desc, skb, offset, len); - if (used < 0) { + if (used <= 0) { if (!copied) copied = used; break; -- cgit v0.10.2 From f26845b43c75d3f32f98d194c1327b5b1e6b3fb0 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 9 Jan 2013 20:59:09 +0000 Subject: tcp: fix splice() and tcp collapsing interaction Under unusual circumstances, TCP collapse can split a big GRO TCP packet while its being used in a splice(socket->pipe) operation. skb_splice_bits() releases the socket lock before calling splice_to_pipe(). [ 1081.353685] WARNING: at net/ipv4/tcp.c:1330 tcp_cleanup_rbuf+0x4d/0xfc() [ 1081.371956] Hardware name: System x3690 X5 -[7148Z68]- [ 1081.391820] cleanup rbuf bug: copied AD3BCF1 seq AD370AF rcvnxt AD3CF13 To fix this problem, we must eat skbs in tcp_recv_skb(). Remove the inline keyword from tcp_recv_skb() definition since it has three call sites. Reported-by: Christian Becker Cc: Willy Tarreau Signed-off-by: Eric Dumazet Tested-by: Willy Tarreau Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 5f173dc..2aa69c8 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1428,12 +1428,12 @@ static void tcp_service_net_dma(struct sock *sk, bool wait) } #endif -static inline struct sk_buff *tcp_recv_skb(struct sock *sk, u32 seq, u32 *off) +static struct sk_buff *tcp_recv_skb(struct sock *sk, u32 seq, u32 *off) { struct sk_buff *skb; u32 offset; - skb_queue_walk(&sk->sk_receive_queue, skb) { + while ((skb = skb_peek(&sk->sk_receive_queue)) != NULL) { offset = seq - TCP_SKB_CB(skb)->seq; if (tcp_hdr(skb)->syn) offset--; @@ -1441,6 +1441,11 @@ static inline struct sk_buff *tcp_recv_skb(struct sock *sk, u32 seq, u32 *off) *off = offset; return skb; } + /* This looks weird, but this can happen if TCP collapsing + * splitted a fat GRO packet, while we released socket lock + * in skb_splice_bits() + */ + sk_eat_skb(sk, skb, false); } return NULL; } @@ -1520,8 +1525,10 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc, tcp_rcv_space_adjust(sk); /* Clean up data we have read: This will do ACK frames. */ - if (copied > 0) + if (copied > 0) { + tcp_recv_skb(sk, seq, &offset); tcp_cleanup_rbuf(sk, copied); + } return copied; } EXPORT_SYMBOL(tcp_read_sock); -- cgit v0.10.2 From 85da53bf1c336bb07ac038fb951403ab0478d2c5 Mon Sep 17 00:00:00 2001 From: Romain Kuntz Date: Wed, 9 Jan 2013 15:02:26 +0100 Subject: ipv6: fix the noflags test in addrconf_get_prefix_route The tests on the flags in addrconf_get_prefix_route() does no make much sense: the 'noflags' parameter contains the set of flags that must not match with the route flags, so the test must be done against 'noflags', and not against 'flags'. Signed-off-by: Romain Kuntz Acked-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 408cac4a..29ba4ff 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1877,7 +1877,7 @@ static struct rt6_info *addrconf_get_prefix_route(const struct in6_addr *pfx, continue; if ((rt->rt6i_flags & flags) != flags) continue; - if ((noflags != 0) && ((rt->rt6i_flags & flags) != 0)) + if ((rt->rt6i_flags & noflags) != 0) continue; dst_hold(&rt->dst); break; -- cgit v0.10.2 From 21caa6622b36190a32b19dfa734822c2eb93e1fd Mon Sep 17 00:00:00 2001 From: Romain Kuntz Date: Wed, 9 Jan 2013 21:06:03 +0000 Subject: ipv6: use addrconf_get_prefix_route for prefix route lookup [v2] Replace ip6_route_lookup() with addrconf_get_prefix_route() when looking up for a prefix route. This ensures that the connected prefix is looked up in the main table, and avoids the selection of other matching routes located in different tables as well as blackhole or prohibited entries. In addition, this fixes an Opps introduced by commit 64c6d08e (ipv6: del unreachable route when an addr is deleted on lo), that would occur when a blackhole or prohibited entry is selected by ip6_route_lookup(). Such entries have a NULL rt6i_table argument, which is accessed by __ip6_del_rt() when trying to lock rt6i_table->tb6_lock. The function addrconf_is_prefix_route() is not used anymore and is removed. [v2] Minor indentation cleanup and log updates. Signed-off-by: Romain Kuntz Acked-by: Nicolas Dichtel Acked-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 29ba4ff..420e563 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -154,6 +154,11 @@ static void addrconf_type_change(struct net_device *dev, unsigned long event); static int addrconf_ifdown(struct net_device *dev, int how); +static struct rt6_info *addrconf_get_prefix_route(const struct in6_addr *pfx, + int plen, + const struct net_device *dev, + u32 flags, u32 noflags); + static void addrconf_dad_start(struct inet6_ifaddr *ifp); static void addrconf_dad_timer(unsigned long data); static void addrconf_dad_completed(struct inet6_ifaddr *ifp); @@ -250,12 +255,6 @@ static inline bool addrconf_qdisc_ok(const struct net_device *dev) return !qdisc_tx_is_noop(dev); } -/* Check if a route is valid prefix route */ -static inline int addrconf_is_prefix_route(const struct rt6_info *rt) -{ - return (rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0; -} - static void addrconf_del_timer(struct inet6_ifaddr *ifp) { if (del_timer(&ifp->timer)) @@ -941,17 +940,15 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) if ((ifp->flags & IFA_F_PERMANENT) && onlink < 1) { struct in6_addr prefix; struct rt6_info *rt; - struct net *net = dev_net(ifp->idev->dev); - struct flowi6 fl6 = {}; ipv6_addr_prefix(&prefix, &ifp->addr, ifp->prefix_len); - fl6.flowi6_oif = ifp->idev->dev->ifindex; - fl6.daddr = prefix; - rt = (struct rt6_info *)ip6_route_lookup(net, &fl6, - RT6_LOOKUP_F_IFACE); - if (rt != net->ipv6.ip6_null_entry && - addrconf_is_prefix_route(rt)) { + rt = addrconf_get_prefix_route(&prefix, + ifp->prefix_len, + ifp->idev->dev, + 0, RTF_GATEWAY | RTF_DEFAULT); + + if (rt) { if (onlink == 0) { ip6_del_rt(rt); rt = NULL; -- cgit v0.10.2 From 6e331f4c83021e4de2a2fc4981574b5d5b16c425 Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Wed, 9 Jan 2013 21:59:48 +0000 Subject: tuntap: refuse to re-attach to different tun_struct Multiqueue tun devices support detaching a tun_file from its tun_struct and re-attaching at a later point in time. This allows users to disable a specific queue temporarily. ioctl(TUNSETIFF) allows the user to specify the network interface to attach by name. This means the user can attempt to attach to interface "B" after detaching from interface "A". The driver is not designed to support this so check we are re-attaching to the right tun_struct. Failure to do so may lead to oops. Signed-off-by: Stefan Hajnoczi Acked-by: Jason Wang Signed-off-by: David S. Miller diff --git a/drivers/net/tun.c b/drivers/net/tun.c index fbd106e..cf6da6e 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -491,6 +491,8 @@ static int tun_attach(struct tun_struct *tun, struct file *file) err = -EINVAL; if (rcu_dereference_protected(tfile->tun, lockdep_rtnl_is_held())) goto out; + if (tfile->detached && tun != tfile->detached) + goto out; err = -EBUSY; if (!(tun->flags & TUN_TAP_MQ) && tun->numqueues == 1) -- cgit v0.10.2 From 337da3e3f5564c5d8ca0962a0338d8c561c9f9c7 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 9 Jan 2013 22:58:07 +0000 Subject: bnx2x: move debugging code before the return I move the return down a line after the debugging printk. Signed-off-by: Dan Carpenter Acked-by: Ariel Elior Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c index 277f17e..a427b49 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c @@ -2777,10 +2777,10 @@ static int bnx2x_set_rss_flags(struct bnx2x *bp, struct ethtool_rxnfc *info) } else if ((info->flow_type == UDP_V6_FLOW) && (bp->rss_conf_obj.udp_rss_v6 != udp_rss_requested)) { bp->rss_conf_obj.udp_rss_v6 = udp_rss_requested; - return bnx2x_config_rss_pf(bp, &bp->rss_conf_obj, 0); DP(BNX2X_MSG_ETHTOOL, "rss re-configured, UDP 4-tupple %s\n", udp_rss_requested ? "enabled" : "disabled"); + return bnx2x_config_rss_pf(bp, &bp->rss_conf_obj, 0); } else { return 0; } -- cgit v0.10.2 From 9d43a18c6e8f868111b983388feeedaea7594fef Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Thu, 10 Jan 2013 01:31:08 +0000 Subject: tun: avoid owner checks on IFF_ATTACH_QUEUE At the moment, we check owner when we enable queue in tun. This seems redundant and will break some valid uses where fd is passed around: I think TUNSETOWNER is there to prevent others from attaching to a persistent device not owned by them. Here the fd is already attached, enabling/disabling queue is more like read/write. Signed-off-by: Michael S. Tsirkin Reviewed-by: Stefan Hajnoczi Signed-off-by: David S. Miller diff --git a/drivers/net/tun.c b/drivers/net/tun.c index cf6da6e..99b58d86 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1791,8 +1791,6 @@ static int tun_set_queue(struct file *file, struct ifreq *ifr) tun = tfile->detached; if (!tun) ret = -EINVAL; - else if (tun_not_capable(tun)) - ret = -EPERM; else ret = tun_attach(tun, file); } else if (ifr->ifr_flags & IFF_DETACH_QUEUE) { -- cgit v0.10.2 From ec82f94c7cfa7451b487cbda95f92f3c7a78afd8 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Thu, 10 Jan 2013 04:42:28 +0000 Subject: bfin_mac: Restore hardware time-stamping dependency on BF518 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 70ac618c07 ("ptp: fixup Kconfig for two PHC drivers.") removed all dependencies for the blackfin hardware time-stamping Kconfig entry. Hardware time-stamping is only available on BF518 though. Since the Kconfig entry is 'default y', just updateing your kernel source and running `make defconfig` will result in the the following build errors: drivers/net/ethernet/adi/bfin_mac.c:694: error: implicit declaration of function ‘bfin_read_EMAC_PTP_CTL’ drivers/net/ethernet/adi/bfin_mac.c:702: error: implicit declaration of function ‘bfin_write_EMAC_PTP_FV3’ drivers/net/ethernet/adi/bfin_mac.c:712: error: implicit declaration of function ‘bfin_write_EMAC_PTP_CTL’ drivers/net/ethernet/adi/bfin_mac.c:717: error: implicit declaration of function ‘bfin_write_EMAC_PTP_FOFF’ ... This patch adds back the dependency on BF518, and since it does not make sense to expose this config option when the blackfin MAC driver is not enabled also restore the dependency on BFIN_MAC. Signed-off-by: Lars-Peter Clausen Acked-by: Richard Cochran Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/adi/Kconfig b/drivers/net/ethernet/adi/Kconfig index e49c0ef..a948160 100644 --- a/drivers/net/ethernet/adi/Kconfig +++ b/drivers/net/ethernet/adi/Kconfig @@ -61,6 +61,7 @@ config BFIN_RX_DESC_NUM config BFIN_MAC_USE_HWSTAMP bool "Use IEEE 1588 hwstamp" + depends on BFIN_MAC && BF518 select PTP_1588_CLOCK default y ---help--- -- cgit v0.10.2 From 4864a16ae69dd651147aa72584d20d2c24536712 Mon Sep 17 00:00:00 2001 From: Yuval Mintz Date: Thu, 10 Jan 2013 04:53:39 +0000 Subject: bnx2x: Fix fastpath structures when memory allocation fails When allocating Tx queues, if for some reason (e.g., lack of memory) allocation fails, driver will incorrectly calculate the pointers of the various queues. This patch repositions all pointers in such a case to point at sequential structures in memory, allowing the bnx2x macros to be used correctly when accessing them. Signed-off-by: Yuval Mintz Signed-off-by: Ariel Elior Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index 01588b6..f771ddf 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -80,12 +80,37 @@ static inline void bnx2x_move_fp(struct bnx2x *bp, int from, int to) new_txdata_index = new_max_eth_txqs + FCOE_TXQ_IDX_OFFSET; } - memcpy(&bp->bnx2x_txq[old_txdata_index], - &bp->bnx2x_txq[new_txdata_index], + memcpy(&bp->bnx2x_txq[new_txdata_index], + &bp->bnx2x_txq[old_txdata_index], sizeof(struct bnx2x_fp_txdata)); to_fp->txdata_ptr[0] = &bp->bnx2x_txq[new_txdata_index]; } +/** + * bnx2x_shrink_eth_fp - guarantees fastpath structures stay intact + * + * @bp: driver handle + * @delta: number of eth queues which were not allocated + */ +static void bnx2x_shrink_eth_fp(struct bnx2x *bp, int delta) +{ + int i, cos, old_eth_num = BNX2X_NUM_ETH_QUEUES(bp); + + /* Queue pointer cannot be re-set on an fp-basis, as moving pointer + * backward along the array could cause memory to be overriden + */ + for (cos = 1; cos < bp->max_cos; cos++) { + for (i = 0; i < old_eth_num - delta; i++) { + struct bnx2x_fastpath *fp = &bp->fp[i]; + int new_idx = cos * (old_eth_num - delta) + i; + + memcpy(&bp->bnx2x_txq[new_idx], fp->txdata_ptr[cos], + sizeof(struct bnx2x_fp_txdata)); + fp->txdata_ptr[cos] = &bp->bnx2x_txq[new_idx]; + } + } +} + int load_count[2][3] = { {0} }; /* per-path: 0-common, 1-port0, 2-port1 */ /* free skb in the packet ring at pos idx @@ -3863,6 +3888,7 @@ int bnx2x_alloc_fp_mem(struct bnx2x *bp) int delta = BNX2X_NUM_ETH_QUEUES(bp) - i; WARN_ON(delta < 0); + bnx2x_shrink_eth_fp(bp, delta); if (CNIC_SUPPORT(bp)) /* move non eth FPs next to last eth FP * must be done in that order -- cgit v0.10.2 From 1ef1d45a9e54814cc0b471e5377e47bd7e0cd2a8 Mon Sep 17 00:00:00 2001 From: Barak Witkowski Date: Thu, 10 Jan 2013 04:53:40 +0000 Subject: bnx2x: Allow management traffic after boot from SAN As part of the previous driver unload flow, whenever bnx2x is loaded after the UNDI driver it closes all Rx traffic. However, this leads to management traffic also being stopped until the network interface associated with one of its functions gets loaded. To remedy this, management traffic is re-opened once the 'cleaning' after the previous driver ends. Signed-off-by: Barak Witkowski Signed-off-by: Yuval Mintz Signed-off-by: Ariel Elior Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 940ef85..5523da3 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -127,6 +127,17 @@ MODULE_PARM_DESC(debug, " Default debug msglevel"); struct workqueue_struct *bnx2x_wq; +struct bnx2x_mac_vals { + u32 xmac_addr; + u32 xmac_val; + u32 emac_addr; + u32 emac_val; + u32 umac_addr; + u32 umac_val; + u32 bmac_addr; + u32 bmac_val[2]; +}; + enum bnx2x_board_type { BCM57710 = 0, BCM57711, @@ -9420,12 +9431,19 @@ static inline void bnx2x_undi_int_disable(struct bnx2x *bp) bnx2x_undi_int_disable_e1h(bp); } -static void bnx2x_prev_unload_close_mac(struct bnx2x *bp) +static void bnx2x_prev_unload_close_mac(struct bnx2x *bp, + struct bnx2x_mac_vals *vals) { u32 val, base_addr, offset, mask, reset_reg; bool mac_stopped = false; u8 port = BP_PORT(bp); + /* reset addresses as they also mark which values were changed */ + vals->bmac_addr = 0; + vals->umac_addr = 0; + vals->xmac_addr = 0; + vals->emac_addr = 0; + reset_reg = REG_RD(bp, MISC_REG_RESET_REG_2); if (!CHIP_IS_E3(bp)) { @@ -9447,14 +9465,18 @@ static void bnx2x_prev_unload_close_mac(struct bnx2x *bp) */ wb_data[0] = REG_RD(bp, base_addr + offset); wb_data[1] = REG_RD(bp, base_addr + offset + 0x4); + vals->bmac_addr = base_addr + offset; + vals->bmac_val[0] = wb_data[0]; + vals->bmac_val[1] = wb_data[1]; wb_data[0] &= ~BMAC_CONTROL_RX_ENABLE; - REG_WR(bp, base_addr + offset, wb_data[0]); - REG_WR(bp, base_addr + offset + 0x4, wb_data[1]); + REG_WR(bp, vals->bmac_addr, wb_data[0]); + REG_WR(bp, vals->bmac_addr + 0x4, wb_data[1]); } BNX2X_DEV_INFO("Disable emac Rx\n"); - REG_WR(bp, NIG_REG_NIG_EMAC0_EN + BP_PORT(bp)*4, 0); - + vals->emac_addr = NIG_REG_NIG_EMAC0_EN + BP_PORT(bp)*4; + vals->emac_val = REG_RD(bp, vals->emac_addr); + REG_WR(bp, vals->emac_addr, 0); mac_stopped = true; } else { if (reset_reg & MISC_REGISTERS_RESET_REG_2_XMAC) { @@ -9465,14 +9487,18 @@ static void bnx2x_prev_unload_close_mac(struct bnx2x *bp) val & ~(1 << 1)); REG_WR(bp, base_addr + XMAC_REG_PFC_CTRL_HI, val | (1 << 1)); - REG_WR(bp, base_addr + XMAC_REG_CTRL, 0); + vals->xmac_addr = base_addr + XMAC_REG_CTRL; + vals->xmac_val = REG_RD(bp, vals->xmac_addr); + REG_WR(bp, vals->xmac_addr, 0); mac_stopped = true; } mask = MISC_REGISTERS_RESET_REG_2_UMAC0 << port; if (mask & reset_reg) { BNX2X_DEV_INFO("Disable umac Rx\n"); base_addr = BP_PORT(bp) ? GRCBASE_UMAC1 : GRCBASE_UMAC0; - REG_WR(bp, base_addr + UMAC_REG_COMMAND_CONFIG, 0); + vals->umac_addr = base_addr + UMAC_REG_COMMAND_CONFIG; + vals->umac_val = REG_RD(bp, vals->umac_addr); + REG_WR(bp, vals->umac_addr, 0); mac_stopped = true; } } @@ -9664,12 +9690,16 @@ static int bnx2x_prev_unload_common(struct bnx2x *bp) { u32 reset_reg, tmp_reg = 0, rc; bool prev_undi = false; + struct bnx2x_mac_vals mac_vals; + /* It is possible a previous function received 'common' answer, * but hasn't loaded yet, therefore creating a scenario of * multiple functions receiving 'common' on the same path. */ BNX2X_DEV_INFO("Common unload Flow\n"); + memset(&mac_vals, 0, sizeof(mac_vals)); + if (bnx2x_prev_is_path_marked(bp)) return bnx2x_prev_mcp_done(bp); @@ -9680,7 +9710,10 @@ static int bnx2x_prev_unload_common(struct bnx2x *bp) u32 timer_count = 1000; /* Close the MAC Rx to prevent BRB from filling up */ - bnx2x_prev_unload_close_mac(bp); + bnx2x_prev_unload_close_mac(bp, &mac_vals); + + /* close LLH filters towards the BRB */ + bnx2x_set_rx_filter(&bp->link_params, 0); /* Check if the UNDI driver was previously loaded * UNDI driver initializes CID offset for normal bell to 0x7 @@ -9727,6 +9760,17 @@ static int bnx2x_prev_unload_common(struct bnx2x *bp) /* No packets are in the pipeline, path is ready for reset */ bnx2x_reset_common(bp); + if (mac_vals.xmac_addr) + REG_WR(bp, mac_vals.xmac_addr, mac_vals.xmac_val); + if (mac_vals.umac_addr) + REG_WR(bp, mac_vals.umac_addr, mac_vals.umac_val); + if (mac_vals.emac_addr) + REG_WR(bp, mac_vals.emac_addr, mac_vals.emac_val); + if (mac_vals.bmac_addr) { + REG_WR(bp, mac_vals.bmac_addr, mac_vals.bmac_val[0]); + REG_WR(bp, mac_vals.bmac_addr + 4, mac_vals.bmac_val[1]); + } + rc = bnx2x_prev_mark_path(bp, prev_undi); if (rc) { bnx2x_prev_mcp_done(bp); -- cgit v0.10.2 From 94b144a7799e9150ae871330b9b9d8e30401220e Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Thu, 10 Jan 2013 06:58:42 +0000 Subject: net: ethernet: xilinx: Do not use axienet on PPC Axi ethernet can't be used on PPC because it is little endian IP and PPC is big endian. This system can't be designed. Signed-off-by: Michal Simek Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/xilinx/Kconfig b/drivers/net/ethernet/xilinx/Kconfig index 5778a4a..122d60c 100644 --- a/drivers/net/ethernet/xilinx/Kconfig +++ b/drivers/net/ethernet/xilinx/Kconfig @@ -27,7 +27,7 @@ config XILINX_EMACLITE config XILINX_AXI_EMAC tristate "Xilinx 10/100/1000 AXI Ethernet support" - depends on (PPC32 || MICROBLAZE) + depends on MICROBLAZE select PHYLIB ---help--- This driver supports the 10/100/1000 Ethernet from Xilinx for the -- cgit v0.10.2 From cb59c87dbc8be2ffa692c50bd22f89025ba7a342 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Thu, 10 Jan 2013 06:58:43 +0000 Subject: net: ethernet: xilinx: Do not use NO_IRQ in axienet This driver is used on Microblaze and will be used on Arm Zynq. Microblaze doesn't define NO_IRQ and no IRQ is 0. Arm still uses NO_IRQ as -1 and there is no option to connect IRQ to irq 0. That's why <= 0 is only one option how to find out undefined IRQ. Signed-off-by: Michal Simek Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index d9f69b8..6f47100 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -1590,7 +1590,7 @@ static int axienet_of_probe(struct platform_device *op) lp->rx_irq = irq_of_parse_and_map(np, 1); lp->tx_irq = irq_of_parse_and_map(np, 0); of_node_put(np); - if ((lp->rx_irq == NO_IRQ) || (lp->tx_irq == NO_IRQ)) { + if ((lp->rx_irq <= 0) || (lp->tx_irq <= 0)) { dev_err(&op->dev, "could not determine irqs\n"); ret = -ENOMEM; goto err_iounmap_2; -- cgit v0.10.2 From 7144bca6814a79ac86800da9d7f05a8c07bc818c Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 9 Jan 2013 17:12:35 -0800 Subject: nfs: fix sunrpc/clnt.c kernel-doc warnings Fix new kernel-doc warnings in clnt.c: Warning(net/sunrpc/clnt.c:561): No description found for parameter 'flavor' Warning(net/sunrpc/clnt.c:561): Excess function parameter 'auth' description in 'rpc_clone_client_set_auth' Signed-off-by: Randy Dunlap Cc: Trond Myklebust Cc: "J. Bruce Fields" Cc: linux-nfs@vger.kernel.org Signed-off-by: Linus Torvalds diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 1915ffe..507b5e8 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -555,7 +555,7 @@ EXPORT_SYMBOL_GPL(rpc_clone_client); * rpc_clone_client_set_auth - Clone an RPC client structure and set its auth * * @clnt: RPC client whose parameters are copied - * @auth: security flavor for new client + * @flavor: security flavor for new client * * Returns a fresh RPC client or an ERR_PTR. */ -- cgit v0.10.2 From bfbbd96c51b441b7a9a08762aa9ab832f6655b2c Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 9 Jan 2013 17:12:45 -0800 Subject: audit: fix auditfilter.c kernel-doc warnings Fix new kernel-doc warning in auditfilter.c: Warning(kernel/auditfilter.c:1157): Excess function parameter 'uid' description in 'audit_receive_filter' Signed-off-by: Randy Dunlap Cc: Al Viro Cc: Eric Paris Cc: linux-audit@redhat.com (subscribers-only) Signed-off-by: Linus Torvalds diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c index 7f19f23..f9fc54b 100644 --- a/kernel/auditfilter.c +++ b/kernel/auditfilter.c @@ -1144,7 +1144,6 @@ static void audit_log_rule_change(kuid_t loginuid, u32 sessionid, u32 sid, * audit_receive_filter - apply all rules to the specified message type * @type: audit message type * @pid: target pid for netlink audit messages - * @uid: target uid for netlink audit messages * @seq: netlink audit message sequence (serial) number * @data: payload data * @datasz: size of payload data -- cgit v0.10.2 From 2094f167f676f748d205294084828540824f0e3f Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 9 Jan 2013 17:12:52 -0800 Subject: pci: fix iov.c kernel-doc warnings Fix kernel-doc warning in iov.c: Warning(drivers/pci/iov.c:752): No description found for parameter 'numvfs' Signed-off-by: Randy Dunlap Sorry-by: Don Dutile Signed-off-by: Linus Torvalds diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index bafd2bb..c18e5bf 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -739,7 +739,7 @@ EXPORT_SYMBOL_GPL(pci_num_vf); /** * pci_sriov_set_totalvfs -- reduce the TotalVFs available * @dev: the PCI PF device - * numvfs: number that should be used for TotalVFs supported + * @numvfs: number that should be used for TotalVFs supported * * Should be called from PF driver's probe routine with * device's mutex held. -- cgit v0.10.2 From 254adaa465c40151df11fc1f88f93e6e86eb61d4 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 9 Jan 2013 17:13:00 -0800 Subject: seq_file: fix new kernel-doc warnings Fix kernel-doc warnings in fs/seq_file.c: Warning(fs/seq_file.c:304): No description found for parameter 'whence' Warning(fs/seq_file.c:304): Excess function parameter 'origin' description in 'seq_lseek' Signed-off-by: Randy Dunlap Cc: Alexander Viro Signed-off-by: Linus Torvalds diff --git a/fs/seq_file.c b/fs/seq_file.c index 9d863fb..f2bc3df 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -296,7 +296,7 @@ EXPORT_SYMBOL(seq_read); * seq_lseek - ->llseek() method for sequential files. * @file: the file in question * @offset: new position - * @origin: 0 for absolute, 1 for relative position + * @whence: 0 for absolute, 1 for relative position * * Ready-made ->f_op->llseek() */ -- cgit v0.10.2 From ba829137bfd167623363548aa385be769c6b2664 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 17 Dec 2012 09:53:33 +0100 Subject: target: Introduce TCM_NO_SENSE Introduce TCM_NO_SENSE, mapping to sense code 'Not ready, no additional sense information'. Signed-off-by: Hannes Reinecke Cc: Nicholas Bellinger Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 978762d..104bf3b 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -2597,6 +2597,16 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd, * SENSE KEY values from include/scsi/scsi.h */ switch (reason) { + case TCM_NO_SENSE: + /* CURRENT ERROR */ + buffer[0] = 0x70; + buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10; + /* Not Ready */ + buffer[SPC_SENSE_KEY_OFFSET] = NOT_READY; + /* NO ADDITIONAL SENSE INFORMATION */ + buffer[SPC_ASC_KEY_OFFSET] = 0; + buffer[SPC_ASCQ_KEY_OFFSET] = 0; + break; case TCM_NON_EXISTENT_LUN: /* CURRENT ERROR */ buffer[0] = 0x70; diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 7cae236..663e34a 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -174,6 +174,7 @@ typedef unsigned __bitwise__ sense_reason_t; enum tcm_sense_reason_table { #define R(x) (__force sense_reason_t )(x) + TCM_NO_SENSE = R(0x00), TCM_NON_EXISTENT_LUN = R(0x01), TCM_UNSUPPORTED_SCSI_OPCODE = R(0x02), TCM_INCORRECT_AMOUNT_OF_DATA = R(0x03), -- cgit v0.10.2 From a0d50f62c8b7e461f9d53124576d59bc582f3eb3 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 17 Dec 2012 09:53:34 +0100 Subject: target: Use TCM_NO_SENSE for initialisation The compiler complained about uninitialized variables, so use TCM_NO_SENSE here. Signed-off-by: Hannes Reinecke Cc: Nicholas Bellinger Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index 85140f7..7d4ec02 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -212,7 +212,7 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd) struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, *l_tg_pt_gp_mem; unsigned char *buf; unsigned char *ptr; - sense_reason_t rc; + sense_reason_t rc = TCM_NO_SENSE; u32 len = 4; /* Skip over RESERVED area in header */ int alua_access_state, primary = 0; u16 tg_pt_id, rtpi; diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index e35dbf8..8e0290b 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -2053,7 +2053,7 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key, /* Used for APTPL metadata w/ UNREGISTER */ unsigned char *pr_aptpl_buf = NULL; unsigned char isid_buf[PR_REG_ISID_LEN], *isid_ptr = NULL; - sense_reason_t ret; + sense_reason_t ret = TCM_NO_SENSE; int pr_holder = 0, type; if (!se_sess || !se_lun) { -- cgit v0.10.2 From f2eeba214bcd0215b7f558cab6420e5fd153042b Mon Sep 17 00:00:00 2001 From: Mark Rustad Date: Fri, 21 Dec 2012 10:58:14 -0800 Subject: tcm_fc: Do not indicate retry capability to initiators When generating a PRLI response to an initiator, clear the FCP_SPPF_RETRY bit in the response. Signed-off-by: Mark Rustad Reviewed-by: Bhanu Prakash Gollapudi Acked by Robert Love Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c index 12d6fa2..59f2b46 100644 --- a/drivers/target/tcm_fc/tfc_sess.c +++ b/drivers/target/tcm_fc/tfc_sess.c @@ -396,10 +396,10 @@ static int ft_prli_locked(struct fc_rport_priv *rdata, u32 spp_len, /* * OR in our service parameters with other provider (initiator), if any. - * TBD XXX - indicate RETRY capability? */ fill: fcp_parm = ntohl(spp->spp_params); + fcp_parm &= ~FCP_SPPF_RETRY; spp->spp_params = htonl(fcp_parm | FCP_SPPF_TARG_FCN); return FC_SPP_RESP_ACK; } -- cgit v0.10.2 From edec8dfefa1f372b2dd8197da555352e76a10c03 Mon Sep 17 00:00:00 2001 From: Mark Rustad Date: Fri, 21 Dec 2012 10:58:19 -0800 Subject: tcm_fc: Do not report target role when target is not defined Clear the target role when no target is provided for the node performing a PRLI. Signed-off-by: Mark Rustad Reviewed-by: Bhanu Prakash Gollapudi Acked by Robert Love Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c index 59f2b46..6659dd3 100644 --- a/drivers/target/tcm_fc/tfc_sess.c +++ b/drivers/target/tcm_fc/tfc_sess.c @@ -355,11 +355,11 @@ static int ft_prli_locked(struct fc_rport_priv *rdata, u32 spp_len, tport = ft_tport_create(rdata->local_port); if (!tport) - return 0; /* not a target for this local port */ + goto not_target; /* not a target for this local port */ acl = ft_acl_get(tport->tpg, rdata); if (!acl) - return 0; + goto not_target; /* no target for this remote */ if (!rspp) goto fill; @@ -402,6 +402,12 @@ fill: fcp_parm &= ~FCP_SPPF_RETRY; spp->spp_params = htonl(fcp_parm | FCP_SPPF_TARG_FCN); return FC_SPP_RESP_ACK; + +not_target: + fcp_parm = ntohl(spp->spp_params); + fcp_parm &= ~FCP_SPPF_TARG_FCN; + spp->spp_params = htonl(fcp_parm); + return 0; } /** -- cgit v0.10.2 From e627c615553a356f6f70215ebb3933c6e057553e Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 2 Jan 2013 12:47:57 -0800 Subject: target: Fix missing CMD_T_ACTIVE bit regression for pending WRITEs This patch fixes a regression bug introduced during v3.6.x code with the following commit to drop transport_add_cmd_to_queue(), which originally re-set CMD_T_ACTIVE during pending WRITE I/O submission: commit af8772926f019b7bddd7477b8de5f3b0f12bad21 Author: Christoph Hellwig Date: Sun Jul 8 15:58:49 2012 -0400 target: replace the processing thread with a TMR work queue The following sequence happens for write commands (or any other commands with a data out phase): - The transport calls target_submit_cmd(), which sets CMD_T_ACTIVE in cmd->transport_state and sets cmd->t_state to TRANSPORT_NEW_CMD. - Things go on transport_generic_new_cmd(), which notices that the command needs to transfer data, so it sets cmd->t_state to TRANSPORT_WRITE_PENDING and calls transport_cmd_check_stop(). - transport_cmd_check_stop() clears CMD_T_ACTIVE in cmd->transport_state and returns in the normal case. - Then we continue on to call ->se_tfo->write_pending(). - The data comes back from the initiator, and the transport calls target_execute_cmd(), which sets cmd->t_state to TRANSPORT_PROCESSING and calls into the backend to actually write the data. At this point, the backend might take a long time to complete the command, since it has to do real IO. If an abort request comes in for this command at this point, it will not wait for the command to finish since CMD_T_ACTIVE is not set. Then when the command does finally finish, we blow up with use-after-free. Avoid this by setting CMD_T_ACTIVE in target_execute_cmd() so that transport_wait_for_tasks() waits for the command to finish executing. This matches the behavior from before commit 1389533ef944 ("target: remove transport_generic_handle_data"), when data was signaled via transport_generic_handle_data(), which set CMD_T_ACTIVE because it called transport_add_cmd_to_queue(). Signed-off-by: Roland Dreier Reported-by: Martin Svec Cc: Christoph Hellwig Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 104bf3b..1775bda 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1688,6 +1688,7 @@ void target_execute_cmd(struct se_cmd *cmd) } cmd->t_state = TRANSPORT_PROCESSING; + cmd->transport_state |= CMD_T_ACTIVE; spin_unlock_irq(&cmd->t_state_lock); if (!target_handle_task_attr(cmd)) -- cgit v0.10.2 From 72b59d6ee8adaa51f70377db0a1917ed489bead8 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 2 Jan 2013 12:47:58 -0800 Subject: target: Fix use-after-free in LUN RESET handling If a backend IO takes a really long then an initiator might abort a command, and then when it gives up on the abort, send a LUN reset too, all before we process any of the original command or the abort. (The abort will wait for the backend IO to complete too) When the backend IO final completes (or fails), the abort handling will proceed and queue up a "return aborted status" operation. Then, while that's still pending, the LUN reset might find the original command still on the LUN's list of commands and try to return aborted status again, which leads to a use-after free when the first se_tfo->queue_status call frees the command and then the second se_tfo->queue_status call runs. Fix this by removing a command from the LUN state_list when we first are about to queue aborted status; we shouldn't do anything LUN-related after we've started returning status, so this seems like the correct thing to do. Signed-off-by: Roland Dreier Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 1775bda..489bd16 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -541,9 +541,6 @@ static void transport_lun_remove_cmd(struct se_cmd *cmd) void transport_cmd_finish_abort(struct se_cmd *cmd, int remove) { - if (!(cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) - transport_lun_remove_cmd(cmd); - if (transport_cmd_check_stop_to_fabric(cmd)) return; if (remove) @@ -2815,6 +2812,8 @@ void transport_send_task_abort(struct se_cmd *cmd) } cmd->scsi_status = SAM_STAT_TASK_ABORTED; + transport_lun_remove_cmd(cmd); + pr_debug("Setting SAM_STAT_TASK_ABORTED status for CDB: 0x%02x," " ITT: 0x%08x\n", cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd)); -- cgit v0.10.2 From 5a3b6fc0092c5f8dee7820064ee54d2631d48573 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 2 Jan 2013 12:47:59 -0800 Subject: target: Release se_cmd when LUN lookup fails for TMR When transport_lookup_tmr_lun() fails and we return a task management response from target_complete_tmr_failure(), we need to call transport_cmd_check_stop_to_fabric() to release the last ref to the cmd after calling se_tfo->queue_tm_rsp(), or else we will never remove the failed TMR from the session command list (and we'll end up waiting forever when trying to tear down the session). (nab: Fix minor compile breakage) Signed-off-by: Roland Dreier Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 489bd16..bd587b7 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1393,6 +1393,8 @@ static void target_complete_tmr_failure(struct work_struct *work) se_cmd->se_tmr_req->response = TMR_LUN_DOES_NOT_EXIST; se_cmd->se_tfo->queue_tm_rsp(se_cmd); + + transport_cmd_check_stop_to_fabric(se_cmd); } /** -- cgit v0.10.2 From 64fe4f4f181cc2fe97d4176bf6ee6e3725ae33ec Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Mon, 7 Jan 2013 11:45:16 -0800 Subject: iscsi-target: Fix CmdSN comparison (use cmd->cmd_sn instead of cmd->stat_sn) Commit 64c13330a389 ("iscsi-target: Fix bug in handling of ExpStatSN ACK during u32 wrap-around") introduced a bug where we compare the wrong SN against our ExpCmdSN. Reported-by: Ben Hutchings Signed-off-by: Roland Dreier Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger diff --git a/drivers/target/iscsi/iscsi_target_erl2.c b/drivers/target/iscsi/iscsi_target_erl2.c index 9ac4c151..ba6091b 100644 --- a/drivers/target/iscsi/iscsi_target_erl2.c +++ b/drivers/target/iscsi/iscsi_target_erl2.c @@ -372,7 +372,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn) * made generic here. */ if (!(cmd->cmd_flags & ICF_OOO_CMDSN) && !cmd->immediate_cmd && - iscsi_sna_gte(cmd->stat_sn, conn->sess->exp_cmd_sn)) { + iscsi_sna_gte(cmd->cmd_sn, conn->sess->exp_cmd_sn)) { list_del(&cmd->i_conn_node); spin_unlock_bh(&conn->cmd_lock); iscsit_free_cmd(cmd); -- cgit v0.10.2 From 7b514a886ba50e3b99295b00805f0d5ad750ca66 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 10 Jan 2013 16:18:47 +0000 Subject: tcp: accept RST without ACK flag commit c3ae62af8e755 (tcp: should drop incoming frames without ACK flag set) added a regression on the handling of RST messages. RST should be allowed to come even without ACK bit set. We validate the RST by checking the exact sequence, as requested by RFC 793 and 5961 3.2, in tcp_validate_incoming() Reported-by: Eric Wong Signed-off-by: Eric Dumazet Acked-by: Neal Cardwell Tested-by: Eric Wong Signed-off-by: David S. Miller diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index a28e4db..18f97ca 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5543,7 +5543,7 @@ slow_path: if (len < (th->doff << 2) || tcp_checksum_complete_user(sk, skb)) goto csum_error; - if (!th->ack) + if (!th->ack && !th->rst) goto discard; /* @@ -5988,7 +5988,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb, goto discard; } - if (!th->ack) + if (!th->ack && !th->rst) goto discard; if (!tcp_validate_incoming(sk, skb, th, 0)) -- cgit v0.10.2 From 31be5425d795585251a3ee970319c37643e0cda2 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 10 Jan 2013 14:06:38 +0100 Subject: ALSA: usb-audio: Fix NULL dereference by access to non-existing substream The commit [0d9741c0: ALSA: usb-audio: sync ep init fix for audioformat mismatch] introduced the correction of parameters to be set for sync EP. But since the new code assumes that the sync EP is always paired with the data EP of another direction, it triggers Oops when a device only with a single direction is used. This patch adds a proper check of sync EP type and the presence of the paired substream for avoiding the crash. Reported-and-tested-by: Jens Axboe Signed-off-by: Takashi Iwai diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index c659310..d82e378 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -511,6 +511,16 @@ static int configure_sync_endpoint(struct snd_usb_substream *subs) struct snd_usb_substream *sync_subs = &subs->stream->substream[subs->direction ^ 1]; + if (subs->sync_endpoint->type != SND_USB_ENDPOINT_TYPE_DATA || + !subs->stream) + return snd_usb_endpoint_set_params(subs->sync_endpoint, + subs->pcm_format, + subs->channels, + subs->period_bytes, + subs->cur_rate, + subs->cur_audiofmt, + NULL); + /* Try to find the best matching audioformat. */ list_for_each_entry(fp, &sync_subs->fmt_list, list) { int score = match_endpoint_audioformats(fp, subs->cur_audiofmt, -- cgit v0.10.2 From 30c254ff5c6510877c4fa3c3e87bb6d7172a7fcf Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 10 Jan 2013 20:17:35 -0800 Subject: sh: define TASK_UNMAPPED_BASE as a page aligned constant b4265f12340f809447b9a48055e88c444b480c89 (mm: use vm_unmapped_area() on sh architecture) broke sh boot. This patch define TASK_UNMAPPED_BASE as a page aligned constant to solve this issue. Special thanks to Michel Acked-by: Michel Lespinasse Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h index b1320d5..e699a12 100644 --- a/arch/sh/include/asm/processor_32.h +++ b/arch/sh/include/asm/processor_32.h @@ -39,7 +39,7 @@ /* This decides where the kernel will search for a free chunk of vm * space during mmap's. */ -#define TASK_UNMAPPED_BASE (TASK_SIZE / 3) +#define TASK_UNMAPPED_BASE PAGE_ALIGN(TASK_SIZE / 3) /* * Bit of SR register diff --git a/arch/sh/include/asm/processor_64.h b/arch/sh/include/asm/processor_64.h index 1ee8946..1cc7d31 100644 --- a/arch/sh/include/asm/processor_64.h +++ b/arch/sh/include/asm/processor_64.h @@ -47,7 +47,7 @@ pc; }) /* This decides where the kernel will search for a free chunk of vm * space during mmap's. */ -#define TASK_UNMAPPED_BASE (TASK_SIZE / 3) +#define TASK_UNMAPPED_BASE PAGE_ALIGN(TASK_SIZE / 3) /* * Bit of SR register -- cgit v0.10.2 From 5a799b824b6046befa7e10107a3d65f40816f645 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Sun, 25 Nov 2012 22:01:46 -0800 Subject: sh: clkfwk: bugfix: sh_clk_div_enable() care sh_clk_div_set_rate() if div6 764f4e4e33d18cde4dcaf8a0d860b749c6d6d08b (sh: clkfwk: Use shared sh_clk_div_enable/disable()) shared enable/disable funcions for div4/div6. But new sh_clk_div_enable() didn't care sh_clk_div_set_rate() which is required on div6 clock. This patch fixes it. Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt diff --git a/drivers/sh/clk/cpg.c b/drivers/sh/clk/cpg.c index 5aedcdf..1ebe67c 100644 --- a/drivers/sh/clk/cpg.c +++ b/drivers/sh/clk/cpg.c @@ -126,6 +126,12 @@ static int sh_clk_div_set_rate(struct clk *clk, unsigned long rate) static int sh_clk_div_enable(struct clk *clk) { + if (clk->div_mask == SH_CLK_DIV6_MSK) { + int ret = sh_clk_div_set_rate(clk, clk->rate); + if (ret < 0) + return ret; + } + sh_clk_write(sh_clk_read(clk) & ~CPG_CKSTP_BIT, clk); return 0; } -- cgit v0.10.2 From 4a71997a3279a339e7336ea5d0cd27282e2dea44 Mon Sep 17 00:00:00 2001 From: Thomas Schwinge Date: Fri, 16 Nov 2012 10:46:20 +0100 Subject: sh: Fix FDPIC binary loader Ensure that the aux table is properly initialized, even when optional features are missing. Without this, the FDPIC loader did not work. This was meant to be included in commit d5ab780305bb6d60a7b5a74f18cf84eb6ad153b1. Signed-off-by: Thomas Schwinge Cc: stable@vger.kernel.org Signed-off-by: Paul Mundt diff --git a/arch/sh/include/asm/elf.h b/arch/sh/include/asm/elf.h index 37924af..bf9f44f 100644 --- a/arch/sh/include/asm/elf.h +++ b/arch/sh/include/asm/elf.h @@ -203,9 +203,9 @@ extern void __kernel_vsyscall; if (vdso_enabled) \ NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE); \ else \ - NEW_AUX_ENT(AT_IGNORE, 0); + NEW_AUX_ENT(AT_IGNORE, 0) #else -#define VSYSCALL_AUX_ENT +#define VSYSCALL_AUX_ENT NEW_AUX_ENT(AT_IGNORE, 0) #endif /* CONFIG_VSYSCALL */ #ifdef CONFIG_SH_FPU -- cgit v0.10.2 From f1688e0431d3a395388e70fe21da89ed0de0c323 Mon Sep 17 00:00:00 2001 From: Dave Reisner Date: Wed, 2 Jan 2013 08:54:37 -0500 Subject: debugfs: convert gid= argument from decimal, not octal This patch technically breaks userspace, but I suspect that anyone who actually used this flag would have encountered this brokenness, declared it lunacy, and already sent a patch. Signed-off-by: Dave Reisner Reviewed-by: Vasiliy Kulikov Acked-by: Kees Cook Signed-off-by: Greg Kroah-Hartman diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index 153bb1e..a5f12b7 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -176,7 +176,7 @@ static int debugfs_parse_options(char *data, struct debugfs_mount_opts *opts) opts->uid = uid; break; case Opt_gid: - if (match_octal(&args[0], &option)) + if (match_int(&args[0], &option)) return -EINVAL; gid = make_kgid(current_user_ns(), option); if (!gid_valid(gid)) -- cgit v0.10.2 From 47ecfcb7d01418fcbfbc75183ba5e28e98b667b2 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Fri, 11 Jan 2013 09:27:01 +0000 Subject: mm: compaction: Partially revert capture of suitable high-order page Eric Wong reported on 3.7 and 3.8-rc2 that ppoll() got stuck when waiting for POLLIN on a local TCP socket. It was easier to trigger if there was disk IO and dirty pages at the same time and he bisected it to commit 1fb3f8ca0e92 ("mm: compaction: capture a suitable high-order page immediately when it is made available"). The intention of that patch was to improve high-order allocations under memory pressure after changes made to reclaim in 3.6 drastically hurt THP allocations but the approach was flawed. For Eric, the problem was that page->pfmemalloc was not being cleared for captured pages leading to a poor interaction with swap-over-NFS support causing the packets to be dropped. However, I identified a few more problems with the patch including the fact that it can increase contention on zone->lock in some cases which could result in async direct compaction being aborted early. In retrospect the capture patch took the wrong approach. What it should have done is mark the pageblock being migrated as MIGRATE_ISOLATE if it was allocating for THP and avoided races that way. While the patch was showing to improve allocation success rates at the time, the benefit is marginal given the relative complexity and it should be revisited from scratch in the context of the other reclaim-related changes that have taken place since the patch was first written and tested. This patch partially reverts commit 1fb3f8ca "mm: compaction: capture a suitable high-order page immediately when it is made available". Reported-and-tested-by: Eric Wong Tested-by: Eric Dumazet Cc: stable@vger.kernel.org Signed-off-by: Mel Gorman Signed-off-by: Linus Torvalds diff --git a/include/linux/compaction.h b/include/linux/compaction.h index 6ecb6dc..cc7bdde 100644 --- a/include/linux/compaction.h +++ b/include/linux/compaction.h @@ -22,7 +22,7 @@ extern int sysctl_extfrag_handler(struct ctl_table *table, int write, extern int fragmentation_index(struct zone *zone, unsigned int order); extern unsigned long try_to_compact_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *mask, - bool sync, bool *contended, struct page **page); + bool sync, bool *contended); extern int compact_pgdat(pg_data_t *pgdat, int order); extern void reset_isolation_suitable(pg_data_t *pgdat); extern unsigned long compaction_suitable(struct zone *zone, int order); @@ -75,7 +75,7 @@ static inline bool compaction_restarting(struct zone *zone, int order) #else static inline unsigned long try_to_compact_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *nodemask, - bool sync, bool *contended, struct page **page) + bool sync, bool *contended) { return COMPACT_CONTINUE; } diff --git a/include/linux/mm.h b/include/linux/mm.h index 6320407..66e2f7c 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -455,7 +455,6 @@ void put_pages_list(struct list_head *pages); void split_page(struct page *page, unsigned int order); int split_free_page(struct page *page); -int capture_free_page(struct page *page, int alloc_order, int migratetype); /* * Compound pages have a destructor function. Provide a diff --git a/mm/compaction.c b/mm/compaction.c index 6b807e4..2c57043 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -816,6 +816,7 @@ static isolate_migrate_t isolate_migratepages(struct zone *zone, static int compact_finished(struct zone *zone, struct compact_control *cc) { + unsigned int order; unsigned long watermark; if (fatal_signal_pending(current)) @@ -850,22 +851,16 @@ static int compact_finished(struct zone *zone, return COMPACT_CONTINUE; /* Direct compactor: Is a suitable page free? */ - if (cc->page) { - /* Was a suitable page captured? */ - if (*cc->page) + for (order = cc->order; order < MAX_ORDER; order++) { + struct free_area *area = &zone->free_area[order]; + + /* Job done if page is free of the right migratetype */ + if (!list_empty(&area->free_list[cc->migratetype])) + return COMPACT_PARTIAL; + + /* Job done if allocation would set block type */ + if (cc->order >= pageblock_order && area->nr_free) return COMPACT_PARTIAL; - } else { - unsigned int order; - for (order = cc->order; order < MAX_ORDER; order++) { - struct free_area *area = &zone->free_area[cc->order]; - /* Job done if page is free of the right migratetype */ - if (!list_empty(&area->free_list[cc->migratetype])) - return COMPACT_PARTIAL; - - /* Job done if allocation would set block type */ - if (cc->order >= pageblock_order && area->nr_free) - return COMPACT_PARTIAL; - } } return COMPACT_CONTINUE; @@ -921,60 +916,6 @@ unsigned long compaction_suitable(struct zone *zone, int order) return COMPACT_CONTINUE; } -static void compact_capture_page(struct compact_control *cc) -{ - unsigned long flags; - int mtype, mtype_low, mtype_high; - - if (!cc->page || *cc->page) - return; - - /* - * For MIGRATE_MOVABLE allocations we capture a suitable page ASAP - * regardless of the migratetype of the freelist is is captured from. - * This is fine because the order for a high-order MIGRATE_MOVABLE - * allocation is typically at least a pageblock size and overall - * fragmentation is not impaired. Other allocation types must - * capture pages from their own migratelist because otherwise they - * could pollute other pageblocks like MIGRATE_MOVABLE with - * difficult to move pages and making fragmentation worse overall. - */ - if (cc->migratetype == MIGRATE_MOVABLE) { - mtype_low = 0; - mtype_high = MIGRATE_PCPTYPES; - } else { - mtype_low = cc->migratetype; - mtype_high = cc->migratetype + 1; - } - - /* Speculatively examine the free lists without zone lock */ - for (mtype = mtype_low; mtype < mtype_high; mtype++) { - int order; - for (order = cc->order; order < MAX_ORDER; order++) { - struct page *page; - struct free_area *area; - area = &(cc->zone->free_area[order]); - if (list_empty(&area->free_list[mtype])) - continue; - - /* Take the lock and attempt capture of the page */ - if (!compact_trylock_irqsave(&cc->zone->lock, &flags, cc)) - return; - if (!list_empty(&area->free_list[mtype])) { - page = list_entry(area->free_list[mtype].next, - struct page, lru); - if (capture_free_page(page, cc->order, mtype)) { - spin_unlock_irqrestore(&cc->zone->lock, - flags); - *cc->page = page; - return; - } - } - spin_unlock_irqrestore(&cc->zone->lock, flags); - } - } -} - static int compact_zone(struct zone *zone, struct compact_control *cc) { int ret; @@ -1054,9 +995,6 @@ static int compact_zone(struct zone *zone, struct compact_control *cc) goto out; } } - - /* Capture a page now if it is a suitable size */ - compact_capture_page(cc); } out: @@ -1069,8 +1007,7 @@ out: static unsigned long compact_zone_order(struct zone *zone, int order, gfp_t gfp_mask, - bool sync, bool *contended, - struct page **page) + bool sync, bool *contended) { unsigned long ret; struct compact_control cc = { @@ -1080,7 +1017,6 @@ static unsigned long compact_zone_order(struct zone *zone, .migratetype = allocflags_to_migratetype(gfp_mask), .zone = zone, .sync = sync, - .page = page, }; INIT_LIST_HEAD(&cc.freepages); INIT_LIST_HEAD(&cc.migratepages); @@ -1110,7 +1046,7 @@ int sysctl_extfrag_threshold = 500; */ unsigned long try_to_compact_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *nodemask, - bool sync, bool *contended, struct page **page) + bool sync, bool *contended) { enum zone_type high_zoneidx = gfp_zone(gfp_mask); int may_enter_fs = gfp_mask & __GFP_FS; @@ -1136,7 +1072,7 @@ unsigned long try_to_compact_pages(struct zonelist *zonelist, int status; status = compact_zone_order(zone, order, gfp_mask, sync, - contended, page); + contended); rc = max(status, rc); /* If a normal allocation would succeed, stop compacting */ @@ -1192,7 +1128,6 @@ int compact_pgdat(pg_data_t *pgdat, int order) struct compact_control cc = { .order = order, .sync = false, - .page = NULL, }; return __compact_pgdat(pgdat, &cc); @@ -1203,7 +1138,6 @@ static int compact_node(int nid) struct compact_control cc = { .order = -1, .sync = true, - .page = NULL, }; return __compact_pgdat(NODE_DATA(nid), &cc); diff --git a/mm/internal.h b/mm/internal.h index d597f94..9ba2110 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -135,7 +135,6 @@ struct compact_control { int migratetype; /* MOVABLE, RECLAIMABLE etc */ struct zone *zone; bool contended; /* True if a lock was contended */ - struct page **page; /* Page captured of requested size */ }; unsigned long diff --git a/mm/page_alloc.c b/mm/page_alloc.c index bc6cc0e..ece7b8e 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1384,14 +1384,8 @@ void split_page(struct page *page, unsigned int order) set_page_refcounted(page + i); } -/* - * Similar to the split_page family of functions except that the page - * required at the given order and being isolated now to prevent races - * with parallel allocators - */ -int capture_free_page(struct page *page, int alloc_order, int migratetype) +static int __isolate_free_page(struct page *page, unsigned int order) { - unsigned int order; unsigned long watermark; struct zone *zone; int mt; @@ -1399,7 +1393,6 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype) BUG_ON(!PageBuddy(page)); zone = page_zone(page); - order = page_order(page); mt = get_pageblock_migratetype(page); if (mt != MIGRATE_ISOLATE) { @@ -1408,7 +1401,7 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype) if (!zone_watermark_ok(zone, 0, watermark, 0, 0)) return 0; - __mod_zone_freepage_state(zone, -(1UL << alloc_order), mt); + __mod_zone_freepage_state(zone, -(1UL << order), mt); } /* Remove page from free list */ @@ -1416,11 +1409,7 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype) zone->free_area[order].nr_free--; rmv_page_order(page); - if (alloc_order != order) - expand(zone, page, alloc_order, order, - &zone->free_area[order], migratetype); - - /* Set the pageblock if the captured page is at least a pageblock */ + /* Set the pageblock if the isolated page is at least a pageblock */ if (order >= pageblock_order - 1) { struct page *endpage = page + (1 << order) - 1; for (; page < endpage; page += pageblock_nr_pages) { @@ -1431,7 +1420,7 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype) } } - return 1UL << alloc_order; + return 1UL << order; } /* @@ -1449,10 +1438,9 @@ int split_free_page(struct page *page) unsigned int order; int nr_pages; - BUG_ON(!PageBuddy(page)); order = page_order(page); - nr_pages = capture_free_page(page, order, 0); + nr_pages = __isolate_free_page(page, order); if (!nr_pages) return 0; @@ -2136,8 +2124,6 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order, bool *contended_compaction, bool *deferred_compaction, unsigned long *did_some_progress) { - struct page *page = NULL; - if (!order) return NULL; @@ -2149,16 +2135,12 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order, current->flags |= PF_MEMALLOC; *did_some_progress = try_to_compact_pages(zonelist, order, gfp_mask, nodemask, sync_migration, - contended_compaction, &page); + contended_compaction); current->flags &= ~PF_MEMALLOC; - /* If compaction captured a page, prep and use it */ - if (page) { - prep_new_page(page, order, gfp_mask); - goto got_page; - } - if (*did_some_progress != COMPACT_SKIPPED) { + struct page *page; + /* Page migration frees to the PCP lists but we want merging */ drain_pages(get_cpu()); put_cpu(); @@ -2168,7 +2150,6 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order, alloc_flags & ~ALLOC_NO_WATERMARKS, preferred_zone, migratetype); if (page) { -got_page: preferred_zone->compact_blockskip_flush = false; preferred_zone->compact_considered = 0; preferred_zone->compact_defer_shift = 0; -- cgit v0.10.2 From 94a85b633829b946eef53fc1825d526312fb856f Mon Sep 17 00:00:00 2001 From: "Quentin.Li" Date: Wed, 26 Dec 2012 16:58:22 +0800 Subject: USB: option: Add new MEDIATEK PID support In option.c, add some new MEDIATEK PIDs support for MEDIATEK new products. This is a MEDIATEK inc. release patch. Signed-off-by: Quentin.Li Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index e6f87b7..2e8c1c8 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -429,9 +429,12 @@ static void option_instat_callback(struct urb *urb); #define MEDIATEK_VENDOR_ID 0x0e8d #define MEDIATEK_PRODUCT_DC_1COM 0x00a0 #define MEDIATEK_PRODUCT_DC_4COM 0x00a5 +#define MEDIATEK_PRODUCT_DC_4COM2 0x00a7 #define MEDIATEK_PRODUCT_DC_5COM 0x00a4 #define MEDIATEK_PRODUCT_7208_1COM 0x7101 #define MEDIATEK_PRODUCT_7208_2COM 0x7102 +#define MEDIATEK_PRODUCT_7103_2COM 0x7103 +#define MEDIATEK_PRODUCT_7106_2COM 0x7106 #define MEDIATEK_PRODUCT_FP_1COM 0x0003 #define MEDIATEK_PRODUCT_FP_2COM 0x0023 #define MEDIATEK_PRODUCT_FPDC_1COM 0x0043 @@ -1294,6 +1297,10 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FP_2COM, 0x0a, 0x00, 0x00) }, { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FPDC_1COM, 0x0a, 0x00, 0x00) }, { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FPDC_2COM, 0x0a, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_7103_2COM, 0xff, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_7106_2COM, 0x02, 0x02, 0x01) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x02, 0x01) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x00, 0x00) }, { USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) }, { } /* Terminating entry */ }; -- cgit v0.10.2 From bbc0313d6186e1aefd267222201d2512c689e4f4 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 10 Dec 2012 00:58:36 -0200 Subject: usb: imx21-hcd: Include missing linux/module.h Include , so that the following errors are fixed: drivers/usb/host/imx21-hcd.c:1929:20: error: expected declaration specifiers or '...' before string constant drivers/usb/host/imx21-hcd.c:1930:15: error: expected declaration specifiers or '...' before string constant drivers/usb/host/imx21-hcd.c:1931:16: error: expected declaration specifiers or '...' before string constant drivers/usb/host/imx21-hcd.c:1932:14: error: expected declaration specifiers or '...' before string constant Signed-off-by: Fabio Estevam Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c index bd6a744..f0ebe8e 100644 --- a/drivers/usb/host/imx21-hcd.c +++ b/drivers/usb/host/imx21-hcd.c @@ -58,6 +58,7 @@ #include #include #include +#include #include "imx21-hcd.h" -- cgit v0.10.2 From fab38246f318edcd0dcb8fd3852a47cf8938878a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Wed, 19 Dec 2012 15:15:17 +0100 Subject: USB: option: blacklist network interface on ZTE MF880 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The driver description files gives these names to the vendor specific functions on this modem: diag: VID_19D2&PID_0284&MI_00 nmea: VID_19D2&PID_0284&MI_01 at: VID_19D2&PID_0284&MI_02 mdm: VID_19D2&PID_0284&MI_03 net: VID_19D2&PID_0284&MI_04 Signed-off-by: Bjørn Mork Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 2e8c1c8..4d85330 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -926,7 +926,8 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0257, 0xff, 0xff, 0xff), /* ZTE MF821 */ .driver_info = (kernel_ulong_t)&net_intf3_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0265, 0xff, 0xff, 0xff) }, - { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0284, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0284, 0xff, 0xff, 0xff), /* ZTE MF880 */ + .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0317, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0326, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, -- cgit v0.10.2 From 5ec0085440ef8c2cf50002b34d5a504ee12aa2bf Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Fri, 28 Dec 2012 17:29:52 +0100 Subject: USB: option: add Telekom Speedstick LTE II MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit also known as Alcatel One Touch L100V LTE The driver description files gives these names to the vendor specific functions on this modem: Application1: VID_1BBB&PID_011E&MI_00 Application2: VID_1BBB&PID_011E&MI_01 Modem: VID_1BBB&PID_011E&MI_03 Ethernet: VID_1BBB&PID_011E&MI_04 Reported-by: Thomas Schäfer Cc: Signed-off-by: Bjørn Mork Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 4d85330..2c75d50 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -288,6 +288,7 @@ static void option_instat_callback(struct urb *urb); #define ALCATEL_VENDOR_ID 0x1bbb #define ALCATEL_PRODUCT_X060S_X200 0x0000 #define ALCATEL_PRODUCT_X220_X500D 0x0017 +#define ALCATEL_PRODUCT_L100V 0x011e #define PIRELLI_VENDOR_ID 0x1266 #define PIRELLI_PRODUCT_C100_1 0x1002 @@ -1194,6 +1195,8 @@ static const struct usb_device_id option_ids[] = { .driver_info = (kernel_ulong_t)&alcatel_x200_blacklist }, { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X220_X500D) }, + { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_L100V), + .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, { USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) }, { USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) }, { USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14), -- cgit v0.10.2 From ad86e58661b38b279b7519d4e49c7a19dc1654bb Mon Sep 17 00:00:00 2001 From: Dzianis Kahanovich Date: Mon, 3 Dec 2012 16:06:26 +0300 Subject: USB: option: add Nexpring NP10T terminal id Hyundai Petatel Inc. Nexpring NP10T terminal (EV-DO rev.A USB modem) ID Signed-off-by: Denis Kaganovich Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 2c75d50..478adcf 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -445,6 +445,10 @@ static void option_instat_callback(struct urb *urb); #define CELLIENT_VENDOR_ID 0x2692 #define CELLIENT_PRODUCT_MEN200 0x9005 +/* Hyundai Petatel Inc. products */ +#define PETATEL_VENDOR_ID 0x1ff4 +#define PETATEL_PRODUCT_NP10T 0x600e + /* some devices interfaces need special handling due to a number of reasons */ enum option_blacklist_reason { OPTION_BLACKLIST_NONE = 0, @@ -1306,6 +1310,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x02, 0x01) }, { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x00, 0x00) }, { USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) }, + { USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, option_ids); -- cgit v0.10.2 From 036915a7a402753c05b8d0529f5fd08805ab46d0 Mon Sep 17 00:00:00 2001 From: Denis N Ladin Date: Wed, 26 Dec 2012 18:29:44 +0500 Subject: USB: cdc-acm: Add support for "PSC Scanning, Magellan 800i" Adding support "PSC Scanning, Magellan 800i" in cdc-acm Very simple, but very necessary. Suitable for all versions of the kernel > 2.6 Signed-off-by: Denis N Ladin Cc: stable Acked-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 8d809a8..2d92cce 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1602,6 +1602,9 @@ static const struct usb_device_id acm_ids[] = { { USB_DEVICE(0x0572, 0x1340), /* Conexant CX93010-2x UCMxx */ .driver_info = NO_UNION_NORMAL, }, + { USB_DEVICE(0x05f9, 0x4002), /* PSC Scanning, Magellan 800i */ + .driver_info = NO_UNION_NORMAL, + }, { USB_DEVICE(0x1bbb, 0x0003), /* Alcatel OT-I650 */ .driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */ }, -- cgit v0.10.2 From 07e72b95f5038cc82304b9a4a2eb7f9fc391ea68 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Thu, 29 Nov 2012 15:05:57 +0100 Subject: USB: hub: handle claim of enabled remote wakeup after reset Some touchscreens have buggy firmware which claims remote wakeup to be enabled after a reset. They nevertheless crash if the feature is cleared by the host. Add a check for reset resume before checking for an enabled remote wakeup feature. On compliant devices the feature must be cleared after a reset anyway. Signed-off-by: Oliver Neukum Acked-by: Alan Stern Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 9641e9c..957ed2c 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -3000,7 +3000,7 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) static int finish_port_resume(struct usb_device *udev) { int status = 0; - u16 devstatus; + u16 devstatus = 0; /* caller owns the udev device lock */ dev_dbg(&udev->dev, "%s\n", @@ -3045,7 +3045,13 @@ static int finish_port_resume(struct usb_device *udev) if (status) { dev_dbg(&udev->dev, "gone after usb resume? status %d\n", status); - } else if (udev->actconfig) { + /* + * There are a few quirky devices which violate the standard + * by claiming to have remote wakeup enabled after a reset, + * which crash if the feature is cleared, hence check for + * udev->reset_resume + */ + } else if (udev->actconfig && !udev->reset_resume) { le16_to_cpus(&devstatus); if (devstatus & (1 << USB_DEVICE_REMOTE_WAKEUP)) { status = usb_control_msg(udev, -- cgit v0.10.2 From 2df8f8a6a897ebf4c5613b5be6103d33b2a21520 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 11 Jan 2013 16:14:10 -0500 Subject: tracing: Fix regression with irqsoff tracer and tracing_on file Commit 02404baf1b47 "tracing: Remove deprecated tracing_enabled file" removed the tracing_enabled file as it never worked properly and the tracing_on file should be used instead. But the tracing_on file didn't call into the tracers start/stop routines like the tracing_enabled file did. This caused trace-cmd to break when it enabled the irqsoff tracer. If you just did "echo irqsoff > current_tracer" then it would work properly. But the tool trace-cmd disables tracing first by writing "0" into the tracing_on file. Then it writes "irqsoff" into current_tracer and then writes "1" into tracing_on. Unfortunately, the above commit changed the irqsoff tracer to check the tracing_on status instead of the tracing_enabled status. If it's disabled then it does not start the tracer internals. The problem is that writing "1" into tracing_on does not call the tracers "start" routine like writing "1" into tracing_enabled did. This makes the irqsoff tracer not start when using the trace-cmd tool, and is a regression for userspace. Simple fix is to have the tracing_on file call the tracers start() method when being enabled (and the stop() method when disabled). Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 1bbfa04..f3ec1cf 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -4817,10 +4817,17 @@ rb_simple_write(struct file *filp, const char __user *ubuf, return ret; if (buffer) { - if (val) + mutex_lock(&trace_types_lock); + if (val) { ring_buffer_record_on(buffer); - else + if (current_trace->start) + current_trace->start(tr); + } else { ring_buffer_record_off(buffer); + if (current_trace->stop) + current_trace->stop(tr); + } + mutex_unlock(&trace_types_lock); } (*ppos)++; -- cgit v0.10.2 From 392370e7aa387185349946d29a0e17b918e51ae6 Mon Sep 17 00:00:00 2001 From: Krzysztof Mazur Date: Fri, 11 Jan 2013 23:20:09 +0100 Subject: cpuidle: fix number of initialized/destroyed states Commit bf4d1b5ddb78f86078ac6ae0415802d5f0c68f92 (cpuidle: support multiple drivers) changed the number of initialized state kobjects in cpuidle_add_state_sysfs() from device->state_count to drv->state_count, but left device->state_count in cpuidle_remove_state_sysfs(). The values of these two fields may be different, in which case a NULL pointer dereference may happen in cpuidle_remove_state_sysfs(), for example. Fix this problem by making cpuidle_add_state_sysfs() use device->state_count too (which restores the original behavior of it). [rjw: Changelog] Signed-off-by: Krzysztof Mazur Acked-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c index 3409429..428754a 100644 --- a/drivers/cpuidle/sysfs.c +++ b/drivers/cpuidle/sysfs.c @@ -374,7 +374,7 @@ static int cpuidle_add_state_sysfs(struct cpuidle_device *device) struct cpuidle_driver *drv = cpuidle_get_cpu_driver(device); /* state statistics */ - for (i = 0; i < drv->state_count; i++) { + for (i = 0; i < device->state_count; i++) { kobj = kzalloc(sizeof(struct cpuidle_state_kobj), GFP_KERNEL); if (!kobj) goto error_state; -- cgit v0.10.2 From a9acc5365dbda29f7be2884efb63771dc24bd815 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Wed, 14 Nov 2012 20:43:31 +0000 Subject: x86/Sandy Bridge: reserve pages when integrated graphics is present SNB graphics devices have a bug that prevent them from accessing certain memory ranges, namely anything below 1M and in the pages listed in the table. So reserve those at boot if set detect a SNB gfx device on the CPU to avoid GPU hangs. Stephane Marchesin had a similar patch to the page allocator awhile back, but rather than reserving pages up front, it leaked them at allocation time. [ hpa: made a number of stylistic changes, marked arrays as static const, and made less verbose; use "memblock=debug" for full verbosity. ] Signed-off-by: Jesse Barnes Signed-off-by: H. Peter Anvin diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 23ddd55..9dcb325 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -610,6 +610,81 @@ static __init void reserve_ibft_region(void) static unsigned reserve_low = CONFIG_X86_RESERVE_LOW << 10; +static bool __init snb_gfx_workaround_needed(void) +{ + int i; + u16 vendor, devid; + static const u16 snb_ids[] = { + 0x0102, + 0x0112, + 0x0122, + 0x0106, + 0x0116, + 0x0126, + 0x010a, + }; + + /* Assume no if something weird is going on with PCI */ + if (!early_pci_allowed()) + return false; + + vendor = read_pci_config_16(0, 2, 0, PCI_VENDOR_ID); + if (vendor != 0x8086) + return false; + + devid = read_pci_config_16(0, 2, 0, PCI_DEVICE_ID); + for (i = 0; i < ARRAY_SIZE(snb_ids); i++) + if (devid == snb_ids[i]) + return true; + + return false; +} + +/* + * Sandy Bridge graphics has trouble with certain ranges, exclude + * them from allocation. + */ +static void __init trim_snb_memory(void) +{ + static const unsigned long bad_pages[] = { + 0x20050000, + 0x20110000, + 0x20130000, + 0x20138000, + 0x40004000, + }; + int i; + + if (!snb_gfx_workaround_needed()) + return; + + printk(KERN_DEBUG "reserving inaccessible SNB gfx pages\n"); + + /* + * Reserve all memory below the 1 MB mark that has not + * already been reserved. + */ + memblock_reserve(0, 1<<20); + + for (i = 0; i < ARRAY_SIZE(bad_pages); i++) { + if (memblock_reserve(bad_pages[i], PAGE_SIZE)) + printk(KERN_WARNING "failed to reserve 0x%08lx\n", + bad_pages[i]); + } +} + +/* + * Here we put platform-specific memory range workarounds, i.e. + * memory known to be corrupt or otherwise in need to be reserved on + * specific platforms. + * + * If this gets used more widely it could use a real dispatch mechanism. + */ +static void __init trim_platform_memory_ranges(void) +{ + trim_snb_memory(); +} + static void __init trim_bios_range(void) { /* @@ -630,6 +705,7 @@ static void __init trim_bios_range(void) * take them out. */ e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1); + sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map); } @@ -908,6 +984,8 @@ void __init setup_arch(char **cmdline_p) setup_real_mode(); + trim_platform_memory_ranges(); + init_gbpages(); /* max_pfn_mapped is updated here */ -- cgit v0.10.2 From 896f97ea95c1d29c0520ee0766b66b7f64cb967c Mon Sep 17 00:00:00 2001 From: David Decotigny Date: Fri, 11 Jan 2013 14:31:36 -0800 Subject: lib: cpu_rmap: avoid flushing all workqueues In some cases, free_irq_cpu_rmap() is called while holding a lock (eg rtnl). This can lead to deadlocks, because it invokes flush_scheduled_work() which ends up waiting for whole system workqueue to flush, but some pending works might try to acquire the lock we are already holding. This commit uses reference-counting to replace irq_run_affinity_notifiers(). It also removes irq_run_affinity_notifiers() altogether. [akpm@linux-foundation.org: eliminate free_cpu_rmap, rename cpu_rmap_reclaim() to cpu_rmap_release(), propagate kref_put() retval from cpu_rmap_put()] Signed-off-by: David Decotigny Reviewed-by: Ben Hutchings Acked-by: Eric Dumazet Reviewed-by: Josh Triplett Cc: "David S. Miller" Cc: Or Gerlitz Acked-by: Amir Vadai Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/cpu_rmap.h b/include/linux/cpu_rmap.h index ac3bbb5..1739510 100644 --- a/include/linux/cpu_rmap.h +++ b/include/linux/cpu_rmap.h @@ -13,9 +13,11 @@ #include #include #include +#include /** * struct cpu_rmap - CPU affinity reverse-map + * @refcount: kref for object * @size: Number of objects to be reverse-mapped * @used: Number of objects added * @obj: Pointer to array of object pointers @@ -23,6 +25,7 @@ * based on affinity masks */ struct cpu_rmap { + struct kref refcount; u16 size, used; void **obj; struct { @@ -33,15 +36,7 @@ struct cpu_rmap { #define CPU_RMAP_DIST_INF 0xffff extern struct cpu_rmap *alloc_cpu_rmap(unsigned int size, gfp_t flags); - -/** - * free_cpu_rmap - free CPU affinity reverse-map - * @rmap: Reverse-map allocated with alloc_cpu_rmap(), or %NULL - */ -static inline void free_cpu_rmap(struct cpu_rmap *rmap) -{ - kfree(rmap); -} +extern int cpu_rmap_put(struct cpu_rmap *rmap); extern int cpu_rmap_add(struct cpu_rmap *rmap, void *obj); extern int cpu_rmap_update(struct cpu_rmap *rmap, u16 index, diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 5e4e617..5fa5afe 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -268,11 +268,6 @@ struct irq_affinity_notify { extern int irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify); -static inline void irq_run_affinity_notifiers(void) -{ - flush_scheduled_work(); -} - #else /* CONFIG_SMP */ static inline int irq_set_affinity(unsigned int irq, const struct cpumask *m) diff --git a/lib/cpu_rmap.c b/lib/cpu_rmap.c index 145dec5..5fbed5c 100644 --- a/lib/cpu_rmap.c +++ b/lib/cpu_rmap.c @@ -45,6 +45,7 @@ struct cpu_rmap *alloc_cpu_rmap(unsigned int size, gfp_t flags) if (!rmap) return NULL; + kref_init(&rmap->refcount); rmap->obj = (void **)((char *)rmap + obj_offset); /* Initially assign CPUs to objects on a rota, since we have @@ -63,6 +64,35 @@ struct cpu_rmap *alloc_cpu_rmap(unsigned int size, gfp_t flags) } EXPORT_SYMBOL(alloc_cpu_rmap); +/** + * cpu_rmap_release - internal reclaiming helper called from kref_put + * @ref: kref to struct cpu_rmap + */ +static void cpu_rmap_release(struct kref *ref) +{ + struct cpu_rmap *rmap = container_of(ref, struct cpu_rmap, refcount); + kfree(rmap); +} + +/** + * cpu_rmap_get - internal helper to get new ref on a cpu_rmap + * @rmap: reverse-map allocated with alloc_cpu_rmap() + */ +static inline void cpu_rmap_get(struct cpu_rmap *rmap) +{ + kref_get(&rmap->refcount); +} + +/** + * cpu_rmap_put - release ref on a cpu_rmap + * @rmap: reverse-map allocated with alloc_cpu_rmap() + */ +int cpu_rmap_put(struct cpu_rmap *rmap) +{ + return kref_put(&rmap->refcount, cpu_rmap_release); +} +EXPORT_SYMBOL(cpu_rmap_put); + /* Reevaluate nearest object for given CPU, comparing with the given * neighbours at the given distance. */ @@ -197,8 +227,7 @@ struct irq_glue { * free_irq_cpu_rmap - free a CPU affinity reverse-map used for IRQs * @rmap: Reverse-map allocated with alloc_irq_cpu_map(), or %NULL * - * Must be called in process context, before freeing the IRQs, and - * without holding any locks required by global workqueue items. + * Must be called in process context, before freeing the IRQs. */ void free_irq_cpu_rmap(struct cpu_rmap *rmap) { @@ -212,12 +241,18 @@ void free_irq_cpu_rmap(struct cpu_rmap *rmap) glue = rmap->obj[index]; irq_set_affinity_notifier(glue->notify.irq, NULL); } - irq_run_affinity_notifiers(); - kfree(rmap); + cpu_rmap_put(rmap); } EXPORT_SYMBOL(free_irq_cpu_rmap); +/** + * irq_cpu_rmap_notify - callback for IRQ subsystem when IRQ affinity updated + * @notify: struct irq_affinity_notify passed by irq/manage.c + * @mask: cpu mask for new SMP affinity + * + * This is executed in workqueue context. + */ static void irq_cpu_rmap_notify(struct irq_affinity_notify *notify, const cpumask_t *mask) { @@ -230,10 +265,16 @@ irq_cpu_rmap_notify(struct irq_affinity_notify *notify, const cpumask_t *mask) pr_warning("irq_cpu_rmap_notify: update failed: %d\n", rc); } +/** + * irq_cpu_rmap_release - reclaiming callback for IRQ subsystem + * @ref: kref to struct irq_affinity_notify passed by irq/manage.c + */ static void irq_cpu_rmap_release(struct kref *ref) { struct irq_glue *glue = container_of(ref, struct irq_glue, notify.kref); + + cpu_rmap_put(glue->rmap); kfree(glue); } @@ -258,10 +299,13 @@ int irq_cpu_rmap_add(struct cpu_rmap *rmap, int irq) glue->notify.notify = irq_cpu_rmap_notify; glue->notify.release = irq_cpu_rmap_release; glue->rmap = rmap; + cpu_rmap_get(rmap); glue->index = cpu_rmap_add(rmap, glue); rc = irq_set_affinity_notifier(irq, &glue->notify); - if (rc) + if (rc) { + cpu_rmap_put(glue->rmap); kfree(glue); + } return rc; } EXPORT_SYMBOL(irq_cpu_rmap_add); -- cgit v0.10.2 From 0a1af1d61edae189b0a81bc46386ab37eb3d9d4d Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 11 Jan 2013 14:31:39 -0800 Subject: drivers/rtc/rtc-da9055.c: fix cross-section reference Fix the warning WARNING: drivers/rtc/rtc-da9055.o(.text+0xa71): Section mismatch in reference from the function da9055_rtc_probe() to the function .init.text:da9055_rtc_device_init() Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/rtc/rtc-da9055.c b/drivers/rtc/rtc-da9055.c index 96bafc5..8f0dcfe 100644 --- a/drivers/rtc/rtc-da9055.c +++ b/drivers/rtc/rtc-da9055.c @@ -227,7 +227,7 @@ static const struct rtc_class_ops da9055_rtc_ops = { .alarm_irq_enable = da9055_rtc_alarm_irq_enable, }; -static int __init da9055_rtc_device_init(struct da9055 *da9055, +static int da9055_rtc_device_init(struct da9055 *da9055, struct da9055_pdata *pdata) { int ret; -- cgit v0.10.2 From 04fa5d6a6547fbfcf613efd00637666fe19b24ab Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Fri, 11 Jan 2013 14:31:40 -0800 Subject: mm: migrate: check page_count of THP before migrating Hugh Dickins pointed out that migrate_misplaced_transhuge_page() does not check page_count before migrating like base page migration and khugepage. He could not see why this was safe and he is right. The potential impact of the bug is avoided due to the limitations of NUMA balancing. The page_mapcount() check ensures that only a single address space is using this page and as THPs are typically private it should not be possible for another address space to fault it in parallel. If the address space has one associated task then it's difficult to have both a GUP pin and be referencing the page at the same time. If there are multiple tasks then a buggy scenario requires that another thread be accessing the page while the direct IO is in flight. This is dodgy behaviour as there is a possibility of corruption with or without THP migration. It would be While we happen to be safe for the most part it is shoddy to depend on such "safety" so this patch checks the page count similar to anonymous pages. Note that this does not mean that the page_mapcount() check can go away. If we were to remove the page_mapcount() check the the THP would have to be unmapped from all referencing PTEs, replaced with migration PTEs and restored properly afterwards. Signed-off-by: Mel Gorman Reported-by: Hugh Dickins Cc: Ingo Molnar Cc: Andrea Arcangeli Acked-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/migrate.c b/mm/migrate.c index 3b676b0..c387786 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1679,9 +1679,21 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm, page_xchg_last_nid(new_page, page_last_nid(page)); isolated = numamigrate_isolate_page(pgdat, page); - if (!isolated) { + + /* + * Failing to isolate or a GUP pin prevents migration. The expected + * page count is 2. 1 for anonymous pages without a mapping and 1 + * for the callers pin. If the page was isolated, the page will + * need to be put back on the LRU. + */ + if (!isolated || page_count(page) != 2) { count_vm_events(PGMIGRATE_FAIL, HPAGE_PMD_NR); put_page(new_page); + if (isolated) { + putback_lru_page(page); + isolated = 0; + goto out; + } goto out_keep_locked; } -- cgit v0.10.2 From 552f0cc72aadfc8657876ce310e7a8dc37529536 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 11 Jan 2013 14:31:43 -0800 Subject: drivers/video/ssd1307fb.c: fix bit order bug in the byte translation function This was leading to a strange behaviour when using the fbcon driver on top of this one: the letters were in the right order, but each letter had a vertical symmetry. This was because the addressing was right for the byte, but the addressing of each individual bit was inverted. Signed-off-by: Maxime Ripard Cc: Brian Lilly Cc: Greg Kroah-Hartman Cc: Florian Tobias Schandinat Cc: Thomas Petazzoni Cc: Tomi Valkeinen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/drivers/video/ssd1307fb.c b/drivers/video/ssd1307fb.c index 4d99dd7..395cb6a 100644 --- a/drivers/video/ssd1307fb.c +++ b/drivers/video/ssd1307fb.c @@ -145,8 +145,8 @@ static void ssd1307fb_update_display(struct ssd1307fb_par *par) u32 page_length = SSD1307FB_WIDTH * i; u32 index = page_length + (SSD1307FB_WIDTH * k + j) / 8; u8 byte = *(vmem + index); - u8 bit = byte & (1 << (7 - (j % 8))); - bit = bit >> (7 - (j % 8)); + u8 bit = byte & (1 << (j % 8)); + bit = bit >> (j % 8); buf |= bit << k; } ssd1307fb_write_data(par->client, buf); -- cgit v0.10.2 From c0232ae861df679092c15960b6cd9f589d9b7177 Mon Sep 17 00:00:00 2001 From: Lin Feng Date: Fri, 11 Jan 2013 14:31:44 -0800 Subject: mm: memblock: fix wrong memmove size in memblock_merge_regions() The memmove span covers from (next+1) to the end of the array, and the index of next is (i+1), so the index of (next+1) is (i+2). So the size of remaining array elements is (type->cnt - (i + 2)). Since the remaining elements of the memblock array are move forward by one element and there is only one additional element caused by this bug. So there won't be any write overflow here but read overflow. It may read one more element out of the array address if the array happens to be full. Commonly it doesn't matter at all but if the array happens to be located at the end a memblock, it may cause a invalid read operation for the physical address doesn't exist. There are 2 *happens to be* here, so I think the probability is quite low, I don't know if any guy is haunted by this bug before. Mostly I think it's user-invisible. Signed-off-by: Lin Feng Acked-by: Tejun Heo Reviewed-by: Wanpeng Li Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/memblock.c b/mm/memblock.c index 6259055..88adc8a 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -314,7 +314,8 @@ static void __init_memblock memblock_merge_regions(struct memblock_type *type) } this->size += next->size; - memmove(next, next + 1, (type->cnt - (i + 1)) * sizeof(*next)); + /* move forward from next + 1, index of which is i + 2 */ + memmove(next, next + 1, (type->cnt - (i + 2)) * sizeof(*next)); type->cnt--; } } -- cgit v0.10.2 From 7964c06d66c76507d8b6b662bffea770c29ef0ce Mon Sep 17 00:00:00 2001 From: Jason Liu Date: Fri, 11 Jan 2013 14:31:47 -0800 Subject: mm: compaction: fix echo 1 > compact_memory return error issue when run the folloing command under shell, it will return error sh/$ echo 1 > /proc/sys/vm/compact_memory sh/$ sh: write error: Bad address After strace, I found the following log: ... write(1, "1\n", 2) = 3 write(1, "", 4294967295) = -1 EFAULT (Bad address) write(2, "echo: write error: Bad address\n", 31echo: write error: Bad address ) = 31 This tells system return 3(COMPACT_COMPLETE) after write data to compact_memory. The fix is to make the system just return 0 instead 3(COMPACT_COMPLETE) from sysctl_compaction_handler after compaction_nodes finished. Signed-off-by: Jason Liu Suggested-by: David Rientjes Acked-by: Mel Gorman Cc: Rik van Riel Cc: Minchan Kim Cc: KAMEZAWA Hiroyuki Acked-by: David Rientjes Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/compaction.c b/mm/compaction.c index 6b807e4..f8f5c11 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1210,7 +1210,7 @@ static int compact_node(int nid) } /* Compact all nodes in the system */ -static int compact_nodes(void) +static void compact_nodes(void) { int nid; @@ -1219,8 +1219,6 @@ static int compact_nodes(void) for_each_online_node(nid) compact_node(nid); - - return COMPACT_COMPLETE; } /* The written value is actually unused, all memory is compacted */ @@ -1231,7 +1229,7 @@ int sysctl_compaction_handler(struct ctl_table *table, int write, void __user *buffer, size_t *length, loff_t *ppos) { if (write) - return compact_nodes(); + compact_nodes(); return 0; } -- cgit v0.10.2 From 6d92d4f6a74766cc885b18218268e0c47fbca399 Mon Sep 17 00:00:00 2001 From: Xi Wang Date: Fri, 11 Jan 2013 14:31:48 -0800 Subject: fs/exec.c: work around icc miscompilation The tricky problem is this check: if (i++ >= max) icc (mis)optimizes this check as: if (++i > max) The check now becomes a no-op since max is MAX_ARG_STRINGS (0x7FFFFFFF). This is "allowed" by the C standard, assuming i++ never overflows, because signed integer overflow is undefined behavior. This optimization effectively reverts the previous commit 362e6663ef23 ("exec.c, compat.c: fix count(), compat_count() bounds checking") that tries to fix the check. This patch simply moves ++ after the check. Signed-off-by: Xi Wang Cc: Jason Baron Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/fs/exec.c b/fs/exec.c index 18c45ca..20df02c 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -434,8 +434,9 @@ static int count(struct user_arg_ptr argv, int max) if (IS_ERR(p)) return -EFAULT; - if (i++ >= max) + if (i >= max) return -E2BIG; + ++i; if (fatal_signal_pending(current)) return -ERESTARTNOHAND; -- cgit v0.10.2 From c060f943d0929f3e429c5d9522290584f6281d6e Mon Sep 17 00:00:00 2001 From: Laura Abbott Date: Fri, 11 Jan 2013 14:31:51 -0800 Subject: mm: use aligned zone start for pfn_to_bitidx calculation The current calculation in pfn_to_bitidx assumes that (pfn - zone->zone_start_pfn) >> pageblock_order will return the same bit for all pfn in a pageblock. If zone_start_pfn is not aligned to pageblock_nr_pages, this may not always be correct. Consider the following with pageblock order = 10, zone start 2MB: pfn | pfn - zone start | (pfn - zone start) >> page block order ---------------------------------------------------------------- 0x26000 | 0x25e00 | 0x97 0x26100 | 0x25f00 | 0x97 0x26200 | 0x26000 | 0x98 0x26300 | 0x26100 | 0x98 This means that calling {get,set}_pageblock_migratetype on a single page will not set the migratetype for the full block. Fix this by rounding down zone_start_pfn when doing the bitidx calculation. For our use case, the effects of this bug were mostly tied to the fact that CMA allocations would either take a long time or fail to happen. Depending on the driver using CMA, this could result in anything from visual glitches to application failures. Signed-off-by: Laura Abbott Acked-by: Mel Gorman Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/page_alloc.c b/mm/page_alloc.c index bc6cc0e..c957805 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5604,7 +5604,7 @@ static inline int pfn_to_bitidx(struct zone *zone, unsigned long pfn) pfn &= (PAGES_PER_SECTION-1); return (pfn >> pageblock_order) * NR_PAGEBLOCK_BITS; #else - pfn = pfn - zone->zone_start_pfn; + pfn = pfn - round_down(zone->zone_start_pfn, pageblock_nr_pages); return (pfn >> pageblock_order) * NR_PAGEBLOCK_BITS; #endif /* CONFIG_SPARSEMEM */ } -- cgit v0.10.2 From 10d73e655cef6e86ea8589dca3df4e495e4900b0 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Fri, 11 Jan 2013 14:31:52 -0800 Subject: mm: bootmem: fix free_all_bootmem_core() with odd bitmap alignment Currently free_all_bootmem_core ignores that node_min_pfn may be not multiple of BITS_PER_LONG. Eg commit 6dccdcbe2c3e ("mm: bootmem: fix checking the bitmap when finally freeing bootmem") shifts vec by lower bits of start instead of lower bits of idx. Also if (IS_ALIGNED(start, BITS_PER_LONG) && vec == ~0UL) assumes that vec bit 0 corresponds to start pfn, which is only true when node_min_pfn is a multiple of BITS_PER_LONG. Also loop in the else clause can double-free pages (e.g. with node_min_pfn == start == 1, map[0] == ~0 on 32-bit machine page 32 will be double-freed). This bug causes the following message during xtensa kernel boot: bootmem::free_all_bootmem_core nid=0 start=1 end=8000 BUG: Bad page state in process swapper pfn:00001 page:d04bd020 count:0 mapcount:-127 mapping: (null) index:0x2 page flags: 0x0() Call Trace: bad_page+0x8c/0x9c free_pages_prepare+0x5e/0x88 free_hot_cold_page+0xc/0xa0 __free_pages+0x24/0x38 __free_pages_bootmem+0x54/0x56 free_all_bootmem_core$part$11+0xeb/0x138 free_all_bootmem+0x46/0x58 mem_init+0x25/0xa4 start_kernel+0x11e/0x25c should_never_return+0x0/0x3be7 The fix is the following: - always align vec so that its bit 0 corresponds to start - provide BITS_PER_LONG bits in vec, if those bits are available in the map - don't free pages past next start position in the else clause. Signed-off-by: Max Filippov Cc: Gavin Shan Cc: Johannes Weiner Cc: Tejun Heo Cc: Yinghai Lu Cc: Joonsoo Kim Cc: Prasad Koya Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/bootmem.c b/mm/bootmem.c index 1324cd7..b93376c 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -185,10 +185,23 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) while (start < end) { unsigned long *map, idx, vec; + unsigned shift; map = bdata->node_bootmem_map; idx = start - bdata->node_min_pfn; + shift = idx & (BITS_PER_LONG - 1); + /* + * vec holds at most BITS_PER_LONG map bits, + * bit 0 corresponds to start. + */ vec = ~map[idx / BITS_PER_LONG]; + + if (shift) { + vec >>= shift; + if (end - start >= BITS_PER_LONG) + vec |= ~map[idx / BITS_PER_LONG + 1] << + (BITS_PER_LONG - shift); + } /* * If we have a properly aligned and fully unreserved * BITS_PER_LONG block of pages in front of us, free @@ -201,19 +214,18 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) count += BITS_PER_LONG; start += BITS_PER_LONG; } else { - unsigned long off = 0; + unsigned long cur = start; - vec >>= start & (BITS_PER_LONG - 1); - while (vec) { + start = ALIGN(start + 1, BITS_PER_LONG); + while (vec && cur != start) { if (vec & 1) { - page = pfn_to_page(start + off); + page = pfn_to_page(cur); __free_pages_bootmem(page, 0); count++; } vec >>= 1; - off++; + ++cur; } - start = ALIGN(start + 1, BITS_PER_LONG); } } -- cgit v0.10.2 From fef6c12e8874279ebebfa4cd58d735f6adce3ed1 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 11 Jan 2013 14:31:54 -0800 Subject: arch/mn10300/Kconfig: select CONFIG_GENERIC_ATOMIC64 mn10300 doesn't provide its own atomic64 implementation, so it should pull in the generic one. Cc: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index aa03f2e..e70001c 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -6,6 +6,7 @@ config MN10300 select ARCH_WANT_IPC_PARSE_VERSION select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_KGDB + select GENERIC_ATOMIC64 select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER select GENERIC_CLOCKEVENTS select MODULES_USE_ELF_RELA -- cgit v0.10.2 From 1b963c81b14509e330e0fe3218b645ece2738dc5 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Fri, 11 Jan 2013 14:31:56 -0800 Subject: lockdep, rwsem: provide down_write_nest_lock() down_write_nest_lock() provides a means to annotate locking scenario where an outer lock is guaranteed to serialize the order nested locks are being acquired. This is analogoue to already existing mutex_lock_nest_lock() and spin_lock_nest_lock(). Signed-off-by: Jiri Kosina Cc: Rik van Riel Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Mel Gorman Tested-by: Sedat Dilek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h index 00e4637..2bca44b 100644 --- a/include/linux/lockdep.h +++ b/include/linux/lockdep.h @@ -524,14 +524,17 @@ static inline void print_irqtrace_events(struct task_struct *curr) #ifdef CONFIG_DEBUG_LOCK_ALLOC # ifdef CONFIG_PROVE_LOCKING # define rwsem_acquire(l, s, t, i) lock_acquire(l, s, t, 0, 2, NULL, i) +# define rwsem_acquire_nest(l, s, t, n, i) lock_acquire(l, s, t, 0, 2, n, i) # define rwsem_acquire_read(l, s, t, i) lock_acquire(l, s, t, 1, 2, NULL, i) # else # define rwsem_acquire(l, s, t, i) lock_acquire(l, s, t, 0, 1, NULL, i) +# define rwsem_acquire_nest(l, s, t, n, i) lock_acquire(l, s, t, 0, 1, n, i) # define rwsem_acquire_read(l, s, t, i) lock_acquire(l, s, t, 1, 1, NULL, i) # endif # define rwsem_release(l, n, i) lock_release(l, n, i) #else # define rwsem_acquire(l, s, t, i) do { } while (0) +# define rwsem_acquire_nest(l, s, t, n, i) do { } while (0) # define rwsem_acquire_read(l, s, t, i) do { } while (0) # define rwsem_release(l, n, i) do { } while (0) #endif diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 54bd7cd..413cc11 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -125,8 +125,17 @@ extern void downgrade_write(struct rw_semaphore *sem); */ extern void down_read_nested(struct rw_semaphore *sem, int subclass); extern void down_write_nested(struct rw_semaphore *sem, int subclass); +extern void _down_write_nest_lock(struct rw_semaphore *sem, struct lockdep_map *nest_lock); + +# define down_write_nest_lock(sem, nest_lock) \ +do { \ + typecheck(struct lockdep_map *, &(nest_lock)->dep_map); \ + _down_write_nest_lock(sem, &(nest_lock)->dep_map); \ +} while (0); + #else # define down_read_nested(sem, subclass) down_read(sem) +# define down_write_nest_lock(sem, nest_lock) down_read(sem) # define down_write_nested(sem, subclass) down_write(sem) #endif diff --git a/kernel/rwsem.c b/kernel/rwsem.c index 6850f53..b3c6c3f 100644 --- a/kernel/rwsem.c +++ b/kernel/rwsem.c @@ -116,6 +116,16 @@ void down_read_nested(struct rw_semaphore *sem, int subclass) EXPORT_SYMBOL(down_read_nested); +void _down_write_nest_lock(struct rw_semaphore *sem, struct lockdep_map *nest) +{ + might_sleep(); + rwsem_acquire_nest(&sem->dep_map, 0, 0, nest, _RET_IP_); + + LOCK_CONTENDED(sem, __down_write_trylock, __down_write); +} + +EXPORT_SYMBOL(_down_write_nest_lock); + void down_write_nested(struct rw_semaphore *sem, int subclass) { might_sleep(); -- cgit v0.10.2 From 572043c90db65b45a4efd959db7458edcf6411ad Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Fri, 11 Jan 2013 14:31:59 -0800 Subject: mm: mmap: annotate vm_lock_anon_vma locking properly for lockdep Commit 5a505085f043 ("mm/rmap: Convert the struct anon_vma::mutex to an rwsem") turned anon_vma mutex to rwsem. However, the properly annotated nested locking in mm_take_all_locks() has been converted from mutex_lock_nest_lock(&anon_vma->root->mutex, &mm->mmap_sem); to down_write(&anon_vma->root->rwsem); which is incomplete, and causes the false positive report from lockdep below. Annotate the fact that mmap_sem is used as an outter lock to serialize taking of all the anon_vma rwsems at once no matter the order, using the down_write_nest_lock() primitive. This patch fixes this lockdep report: ============================================= [ INFO: possible recursive locking detected ] 3.8.0-rc2-00036-g5f73896 #171 Not tainted --------------------------------------------- qemu-kvm/2315 is trying to acquire lock: (&anon_vma->rwsem){+.+...}, at: mm_take_all_locks+0x149/0x1b0 but task is already holding lock: (&anon_vma->rwsem){+.+...}, at: mm_take_all_locks+0x149/0x1b0 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&anon_vma->rwsem); lock(&anon_vma->rwsem); *** DEADLOCK *** May be due to missing lock nesting notation 4 locks held by qemu-kvm/2315: #0: (&mm->mmap_sem){++++++}, at: do_mmu_notifier_register+0xfc/0x170 #1: (mm_all_locks_mutex){+.+...}, at: mm_take_all_locks+0x36/0x1b0 #2: (&mapping->i_mmap_mutex){+.+...}, at: mm_take_all_locks+0xc9/0x1b0 #3: (&anon_vma->rwsem){+.+...}, at: mm_take_all_locks+0x149/0x1b0 stack backtrace: Pid: 2315, comm: qemu-kvm Not tainted 3.8.0-rc2-00036-g5f73896 #171 Call Trace: print_deadlock_bug+0xf2/0x100 validate_chain+0x4f6/0x720 __lock_acquire+0x359/0x580 lock_acquire+0x121/0x190 down_write+0x3f/0x70 mm_take_all_locks+0x149/0x1b0 do_mmu_notifier_register+0x68/0x170 mmu_notifier_register+0xe/0x10 kvm_create_vm+0x22b/0x330 [kvm] kvm_dev_ioctl+0xf8/0x1a0 [kvm] do_vfs_ioctl+0x9d/0x350 sys_ioctl+0x91/0xb0 system_call_fastpath+0x16/0x1b Signed-off-by: Jiri Kosina Cc: Rik van Riel Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Mel Gorman Tested-by: Sedat Dilek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/mmap.c b/mm/mmap.c index f54b235..35730ee 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -2886,7 +2886,7 @@ static void vm_lock_anon_vma(struct mm_struct *mm, struct anon_vma *anon_vma) * The LSB of head.next can't change from under us * because we hold the mm_all_locks_mutex. */ - down_write(&anon_vma->root->rwsem); + down_write_nest_lock(&anon_vma->root->rwsem, &mm->mmap_sem); /* * We can safely modify head.next after taking the * anon_vma->root->rwsem. If some other vma in this mm shares -- cgit v0.10.2 From 062f1af2170afe817133d358d900a5f33e3856e4 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Fri, 11 Jan 2013 14:32:02 -0800 Subject: mm: thp: acquire the anon_vma rwsem for write during split Zhouping Liu reported the following against 3.8-rc1 when running a mmap testcase from LTP. mapcount 0 page_mapcount 3 ------------[ cut here ]------------ kernel BUG at mm/huge_memory.c:1798! invalid opcode: 0000 [#1] SMP Modules linked in: ip6table_filter ip6_tables ebtable_nat ebtables bnep bluetooth rfkill iptable_mangle ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack iptable_filter ip_tables be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 cxgb3i cxgb3 mdio libcxgbi ib_iser rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi vfat fat dm_mirror dm_region_hash dm_log dm_mod cdc_ether iTCO_wdt i7core_edac coretemp usbnet iTCO_vendor_support mii crc32c_intel edac_core lpc_ich shpchp ioatdma mfd_core i2c_i801 pcspkr serio_raw bnx2 microcode dca vhost_net tun macvtap macvlan kvm_intel kvm uinput mgag200 sr_mod cdrom i2c_algo_bit sd_mod drm_kms_helper crc_t10dif ata_generic pata_acpi ttm ata_piix drm libata i2c_core megaraid_sas CPU 1 Pid: 23217, comm: mmap10 Not tainted 3.8.0-rc1mainline+ #17 IBM IBM System x3400 M3 Server -[7379I08]-/69Y4356 RIP: __split_huge_page+0x677/0x6d0 RSP: 0000:ffff88017a03fc08 EFLAGS: 00010293 RAX: 0000000000000003 RBX: ffff88027a6c22e0 RCX: 00000000000034d2 RDX: 000000000000748b RSI: 0000000000000046 RDI: 0000000000000246 RBP: ffff88017a03fcb8 R08: ffffffff819d2440 R09: 000000000000054a R10: 0000000000aaaaaa R11: 00000000ffffffff R12: 0000000000000000 R13: 00007f4f11a00000 R14: ffff880179e96e00 R15: ffffea0005c08000 FS: 00007f4f11f4a740(0000) GS:ffff88017bc20000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00000037e9ebb404 CR3: 000000017a436000 CR4: 00000000000007e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process mmap10 (pid: 23217, threadinfo ffff88017a03e000, task ffff880172dd32e0) Stack: ffff88017a540ec8 ffff88017a03fc20 ffffffff816017b5 ffff88017a03fc88 ffffffff812fa014 0000000000000000 ffff880279ebd5c0 00000000f4f11a4c 00000007f4f11f49 00000007f4f11a00 ffff88017a540ef0 ffff88017a540ee8 Call Trace: split_huge_page+0x68/0xb0 __split_huge_page_pmd+0x134/0x330 split_huge_page_pmd_mm+0x51/0x60 split_huge_page_address+0x3b/0x50 __vma_adjust_trans_huge+0x9c/0xf0 vma_adjust+0x684/0x750 __split_vma.isra.28+0x1fa/0x220 do_munmap+0xf9/0x420 vm_munmap+0x4e/0x70 sys_munmap+0x2b/0x40 system_call_fastpath+0x16/0x1b Alexander Beregalov and Alex Xu reported similar bugs and Hillf Danton identified that commit 5a505085f043 ("mm/rmap: Convert the struct anon_vma::mutex to an rwsem") and commit 4fc3f1d66b1e ("mm/rmap, migration: Make rmap_walk_anon() and try_to_unmap_anon() more scalable") were likely the problem. Reverting these commits was reported to solve the problem for Alexander. Despite the reason for these commits, NUMA balancing is not the direct source of the problem. split_huge_page() expects the anon_vma lock to be exclusive to serialise the whole split operation. Ordinarily it is expected that the anon_vma lock would only be required when updating the avcs but THP also uses the anon_vma rwsem for collapse and split operations where the page lock or compound lock cannot be used (as the page is changing from base to THP or vice versa) and the page table locks are insufficient. This patch takes the anon_vma lock for write to serialise against parallel split_huge_page as THP expected before the conversion to rwsem. Reported-and-tested-by: Zhouping Liu Reported-by: Alexander Beregalov Reported-by: Alex Xu Signed-off-by: Mel Gorman Cc: Andrea Arcangeli Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 9e894ed..6001ee6 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1819,9 +1819,19 @@ int split_huge_page(struct page *page) BUG_ON(is_huge_zero_pfn(page_to_pfn(page))); BUG_ON(!PageAnon(page)); - anon_vma = page_lock_anon_vma_read(page); + + /* + * The caller does not necessarily hold an mmap_sem that would prevent + * the anon_vma disappearing so we first we take a reference to it + * and then lock the anon_vma for write. This is similar to + * page_lock_anon_vma_read except the write lock is taken to serialise + * against parallel split or collapse operations. + */ + anon_vma = page_get_anon_vma(page); if (!anon_vma) goto out; + anon_vma_lock_write(anon_vma); + ret = 0; if (!PageCompound(page)) goto out_unlock; @@ -1832,7 +1842,8 @@ int split_huge_page(struct page *page) BUG_ON(PageCompound(page)); out_unlock: - page_unlock_anon_vma_read(anon_vma); + anon_vma_unlock(anon_vma); + put_anon_vma(anon_vma); out: return ret; } -- cgit v0.10.2 From 8fc8b12be13a2e8309a14ac44c4be733a76c12f8 Mon Sep 17 00:00:00 2001 From: Zhang Yanfei Date: Fri, 11 Jan 2013 14:32:03 -0800 Subject: MAINTAINERS: fix arch/arm/plat-omap/include/plat/omap_hwmod.h This file was moved to arch/arm/mach-omap2/omap=5Fhwmod.h by commit 2a296c8f89bc ("ARM: OMAP: Make plat/omap=5Fhwmod.h local to mach-omap2"). Signed-off-by: Zhang Yanfei Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index 3ab0949..dfa1ada 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5507,8 +5507,7 @@ M: Benoît Cousson M: Paul Walmsley L: linux-omap@vger.kernel.org S: Maintained -F: arch/arm/mach-omap2/omap_hwmod.c -F: arch/arm/plat-omap/include/plat/omap_hwmod.h +F: arch/arm/mach-omap2/omap_hwmod.* OMAP HWMOD DATA FOR OMAP4-BASED DEVICES M: Benoît Cousson -- cgit v0.10.2 From 56ca9d98772c68368c929ab41d42108319a38da2 Mon Sep 17 00:00:00 2001 From: Zhang Yanfei Date: Fri, 11 Jan 2013 14:32:04 -0800 Subject: MAINTAINERS: fix a status pattern Change MAINTAINED to Maintained. Signed-off-by: Zhang Yanfei Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index dfa1ada..d57ce63 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -648,7 +648,7 @@ F: arch/arm/ ARM SUB-ARCHITECTURES L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) -S: MAINTAINED +S: Maintained F: arch/arm/mach-*/ F: arch/arm/plat-*/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git -- cgit v0.10.2 From 7b9205bd775afc4439ed86d617f9042ee9e76a71 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 11 Jan 2013 14:32:05 -0800 Subject: audit: create explicit AUDIT_SECCOMP event type The seccomp path was using AUDIT_ANOM_ABEND from when seccomp mode 1 could only kill a process. While we still want to make sure an audit record is forced on a kill, this should use a separate record type since seccomp mode 2 introduces other behaviors. In the case of "handled" behaviors (process wasn't killed), only emit a record if the process is under inspection. This change also fixes userspace examination of seccomp audit events, since it was considered malformed due to missing fields of the AUDIT_ANOM_ABEND event type. Signed-off-by: Kees Cook Cc: Al Viro Cc: Eric Paris Cc: Jeff Layton Cc: "Eric W. Biederman" Cc: Julien Tinnes Acked-by: Will Drewry Acked-by: Steve Grubb Cc: Andrea Arcangeli Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/audit.h b/include/linux/audit.h index bce729a..9d5104d 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -157,7 +157,8 @@ void audit_core_dumps(long signr); static inline void audit_seccomp(unsigned long syscall, long signr, int code) { - if (unlikely(!audit_dummy_context())) + /* Force a record to be reported if a signal was delivered. */ + if (signr || unlikely(!audit_dummy_context())) __audit_seccomp(syscall, signr, code); } diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h index 76352ac..09a2d94 100644 --- a/include/uapi/linux/audit.h +++ b/include/uapi/linux/audit.h @@ -106,6 +106,7 @@ #define AUDIT_MMAP 1323 /* Record showing descriptor and flags in mmap */ #define AUDIT_NETFILTER_PKT 1324 /* Packets traversing netfilter chains */ #define AUDIT_NETFILTER_CFG 1325 /* Netfilter chain modifications */ +#define AUDIT_SECCOMP 1326 /* Secure Computing event */ #define AUDIT_AVC 1400 /* SE Linux avc denial or grant */ #define AUDIT_SELINUX_ERR 1401 /* Internal SE Linux Errors */ diff --git a/kernel/auditsc.c b/kernel/auditsc.c index e37e6a1..3e46d1d 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -2675,7 +2675,7 @@ void __audit_mmap_fd(int fd, int flags) context->type = AUDIT_MMAP; } -static void audit_log_abend(struct audit_buffer *ab, char *reason, long signr) +static void audit_log_task(struct audit_buffer *ab) { kuid_t auid, uid; kgid_t gid; @@ -2693,6 +2693,11 @@ static void audit_log_abend(struct audit_buffer *ab, char *reason, long signr) audit_log_task_context(ab); audit_log_format(ab, " pid=%d comm=", current->pid); audit_log_untrustedstring(ab, current->comm); +} + +static void audit_log_abend(struct audit_buffer *ab, char *reason, long signr) +{ + audit_log_task(ab); audit_log_format(ab, " reason="); audit_log_string(ab, reason); audit_log_format(ab, " sig=%ld", signr); @@ -2723,8 +2728,11 @@ void __audit_seccomp(unsigned long syscall, long signr, int code) { struct audit_buffer *ab; - ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_ANOM_ABEND); - audit_log_abend(ab, "seccomp", signr); + ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_SECCOMP); + if (unlikely(!ab)) + return; + audit_log_task(ab); + audit_log_format(ab, " sig=%ld", signr); audit_log_format(ab, " syscall=%ld", syscall); audit_log_format(ab, " compat=%d", is_compat_task()); audit_log_format(ab, " ip=0x%lx", KSTK_EIP(current)); -- cgit v0.10.2 From 0644ec0cc8a33fb654e348897ad7684e22a4b5d8 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 11 Jan 2013 14:32:07 -0800 Subject: audit: catch possible NULL audit buffers It's possible for audit_log_start() to return NULL. Handle it in the various callers. Signed-off-by: Kees Cook Cc: Al Viro Cc: Eric Paris Cc: Jeff Layton Cc: "Eric W. Biederman" Cc: Julien Tinnes Cc: Will Drewry Cc: Steve Grubb Cc: Andrea Arcangeli Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/kernel/audit.c b/kernel/audit.c index 40414e9..a219998 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -272,6 +272,8 @@ static int audit_log_config_change(char *function_name, int new, int old, int rc = 0; ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE); + if (unlikely(!ab)) + return rc; audit_log_format(ab, "%s=%d old=%d auid=%u ses=%u", function_name, new, old, from_kuid(&init_user_ns, loginuid), sessionid); if (sid) { @@ -619,6 +621,8 @@ static int audit_log_common_recv_msg(struct audit_buffer **ab, u16 msg_type, } *ab = audit_log_start(NULL, GFP_KERNEL, msg_type); + if (unlikely(!*ab)) + return rc; audit_log_format(*ab, "pid=%d uid=%u auid=%u ses=%u", task_tgid_vnr(current), from_kuid(&init_user_ns, current_uid()), diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c index e81175e..642a89c 100644 --- a/kernel/audit_tree.c +++ b/kernel/audit_tree.c @@ -449,11 +449,26 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree) return 0; } +static void audit_log_remove_rule(struct audit_krule *rule) +{ + struct audit_buffer *ab; + + ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE); + if (unlikely(!ab)) + return; + audit_log_format(ab, "op="); + audit_log_string(ab, "remove rule"); + audit_log_format(ab, " dir="); + audit_log_untrustedstring(ab, rule->tree->pathname); + audit_log_key(ab, rule->filterkey); + audit_log_format(ab, " list=%d res=1", rule->listnr); + audit_log_end(ab); +} + static void kill_rules(struct audit_tree *tree) { struct audit_krule *rule, *next; struct audit_entry *entry; - struct audit_buffer *ab; list_for_each_entry_safe(rule, next, &tree->rules, rlist) { entry = container_of(rule, struct audit_entry, rule); @@ -461,14 +476,7 @@ static void kill_rules(struct audit_tree *tree) list_del_init(&rule->rlist); if (rule->tree) { /* not a half-baked one */ - ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE); - audit_log_format(ab, "op="); - audit_log_string(ab, "remove rule"); - audit_log_format(ab, " dir="); - audit_log_untrustedstring(ab, rule->tree->pathname); - audit_log_key(ab, rule->filterkey); - audit_log_format(ab, " list=%d res=1", rule->listnr); - audit_log_end(ab); + audit_log_remove_rule(rule); rule->tree = NULL; list_del_rcu(&entry->list); list_del(&entry->rule.list); diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c index 4a599f6..22831c4 100644 --- a/kernel/audit_watch.c +++ b/kernel/audit_watch.c @@ -240,6 +240,8 @@ static void audit_watch_log_rule_change(struct audit_krule *r, struct audit_watc if (audit_enabled) { struct audit_buffer *ab; ab = audit_log_start(NULL, GFP_NOFS, AUDIT_CONFIG_CHANGE); + if (unlikely(!ab)) + return; audit_log_format(ab, "auid=%u ses=%u op=", from_kuid(&init_user_ns, audit_get_loginuid(current)), audit_get_sessionid(current)); diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 3e46d1d..a371f85 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -1464,14 +1464,14 @@ static void show_special(struct audit_context *context, int *call_panic) audit_log_end(ab); ab = audit_log_start(context, GFP_KERNEL, AUDIT_IPC_SET_PERM); + if (unlikely(!ab)) + return; audit_log_format(ab, "qbytes=%lx ouid=%u ogid=%u mode=%#ho", context->ipc.qbytes, context->ipc.perm_uid, context->ipc.perm_gid, context->ipc.perm_mode); - if (!ab) - return; } break; } case AUDIT_MQ_OPEN: { @@ -2720,6 +2720,8 @@ void audit_core_dumps(long signr) return; ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_ANOM_ABEND); + if (unlikely(!ab)) + return; audit_log_abend(ab, "memory violation", signr); audit_log_end(ab); } -- cgit v0.10.2 From 829199197a430dade2519d54f5545c4a094393b8 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 11 Jan 2013 14:32:11 -0800 Subject: kernel/audit.c: avoid negative sleep durations audit_log_start() performs the same jiffies comparison in two places. If sufficient time has elapsed between the two comparisons, the second one produces a negative sleep duration: schedule_timeout: wrong timeout value fffffffffffffff0 Pid: 6606, comm: trinity-child1 Not tainted 3.8.0-rc1+ #43 Call Trace: schedule_timeout+0x305/0x340 audit_log_start+0x311/0x470 audit_log_exit+0x4b/0xfb0 __audit_syscall_exit+0x25f/0x2c0 sysret_audit+0x17/0x21 Fix it by performing the comparison a single time. Reported-by: Dave Jones Cc: Al Viro Cc: Eric Paris Reviewed-by: Kees Cook Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/kernel/audit.c b/kernel/audit.c index a219998..d596e53 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -1101,6 +1101,23 @@ static inline void audit_get_stamp(struct audit_context *ctx, } } +/* + * Wait for auditd to drain the queue a little + */ +static void wait_for_auditd(unsigned long sleep_time) +{ + DECLARE_WAITQUEUE(wait, current); + set_current_state(TASK_INTERRUPTIBLE); + add_wait_queue(&audit_backlog_wait, &wait); + + if (audit_backlog_limit && + skb_queue_len(&audit_skb_queue) > audit_backlog_limit) + schedule_timeout(sleep_time); + + __set_current_state(TASK_RUNNING); + remove_wait_queue(&audit_backlog_wait, &wait); +} + /* Obtain an audit buffer. This routine does locking to obtain the * audit buffer, but then no locking is required for calls to * audit_log_*format. If the tsk is a task that is currently in a @@ -1146,20 +1163,13 @@ struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, while (audit_backlog_limit && skb_queue_len(&audit_skb_queue) > audit_backlog_limit + reserve) { - if (gfp_mask & __GFP_WAIT && audit_backlog_wait_time - && time_before(jiffies, timeout_start + audit_backlog_wait_time)) { - - /* Wait for auditd to drain the queue a little */ - DECLARE_WAITQUEUE(wait, current); - set_current_state(TASK_INTERRUPTIBLE); - add_wait_queue(&audit_backlog_wait, &wait); - - if (audit_backlog_limit && - skb_queue_len(&audit_skb_queue) > audit_backlog_limit) - schedule_timeout(timeout_start + audit_backlog_wait_time - jiffies); + if (gfp_mask & __GFP_WAIT && audit_backlog_wait_time) { + unsigned long sleep_time; - __set_current_state(TASK_RUNNING); - remove_wait_queue(&audit_backlog_wait, &wait); + sleep_time = timeout_start + audit_backlog_wait_time - + jiffies; + if ((long)sleep_time > 0) + wait_for_auditd(sleep_time); continue; } if (audit_rate_check() && printk_ratelimit()) -- cgit v0.10.2 From c0a3a20b6c4b5229ef5d26fd9b1c4b1957632aa7 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Fri, 11 Jan 2013 14:32:13 -0800 Subject: linux/audit.h: move ptrace.h include to kernel header While the kernel internals want pt_regs (and so it includes linux/ptrace.h), the user version of audit.h does not need it. So move the include out of the uapi version. This avoids issues where people want the audit defines and userland ptrace api. Including both the kernel ptrace and the userland ptrace headers can easily lead to failure. Signed-off-by: Mike Frysinger Cc: Eric Paris Cc: Al Viro Reviewed-by: Kees Cook Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/audit.h b/include/linux/audit.h index 9d5104d..5a6d718 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -24,6 +24,7 @@ #define _LINUX_AUDIT_H_ #include +#include #include struct audit_sig_info { diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h index 09a2d94..9f096f1 100644 --- a/include/uapi/linux/audit.h +++ b/include/uapi/linux/audit.h @@ -26,7 +26,6 @@ #include #include -#include /* The netlink messages for the audit system is divided into blocks: * 1000 - 1099 are for commanding the audit system -- cgit v0.10.2 From 8fb74b9fb2b182d54beee592350d9ea1f325917a Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Fri, 11 Jan 2013 14:32:16 -0800 Subject: mm: compaction: partially revert capture of suitable high-order page Eric Wong reported on 3.7 and 3.8-rc2 that ppoll() got stuck when waiting for POLLIN on a local TCP socket. It was easier to trigger if there was disk IO and dirty pages at the same time and he bisected it to commit 1fb3f8ca0e92 ("mm: compaction: capture a suitable high-order page immediately when it is made available"). The intention of that patch was to improve high-order allocations under memory pressure after changes made to reclaim in 3.6 drastically hurt THP allocations but the approach was flawed. For Eric, the problem was that page->pfmemalloc was not being cleared for captured pages leading to a poor interaction with swap-over-NFS support causing the packets to be dropped. However, I identified a few more problems with the patch including the fact that it can increase contention on zone->lock in some cases which could result in async direct compaction being aborted early. In retrospect the capture patch took the wrong approach. What it should have done is mark the pageblock being migrated as MIGRATE_ISOLATE if it was allocating for THP and avoided races that way. While the patch was showing to improve allocation success rates at the time, the benefit is marginal given the relative complexity and it should be revisited from scratch in the context of the other reclaim-related changes that have taken place since the patch was first written and tested. This patch partially reverts commit 1fb3f8ca0e92 ("mm: compaction: capture a suitable high-order page immediately when it is made available"). Reported-and-tested-by: Eric Wong Tested-by: Eric Dumazet Cc: Signed-off-by: Mel Gorman Cc: David Miller Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/compaction.h b/include/linux/compaction.h index 6ecb6dc..cc7bdde 100644 --- a/include/linux/compaction.h +++ b/include/linux/compaction.h @@ -22,7 +22,7 @@ extern int sysctl_extfrag_handler(struct ctl_table *table, int write, extern int fragmentation_index(struct zone *zone, unsigned int order); extern unsigned long try_to_compact_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *mask, - bool sync, bool *contended, struct page **page); + bool sync, bool *contended); extern int compact_pgdat(pg_data_t *pgdat, int order); extern void reset_isolation_suitable(pg_data_t *pgdat); extern unsigned long compaction_suitable(struct zone *zone, int order); @@ -75,7 +75,7 @@ static inline bool compaction_restarting(struct zone *zone, int order) #else static inline unsigned long try_to_compact_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *nodemask, - bool sync, bool *contended, struct page **page) + bool sync, bool *contended) { return COMPACT_CONTINUE; } diff --git a/include/linux/mm.h b/include/linux/mm.h index 6320407..66e2f7c 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -455,7 +455,6 @@ void put_pages_list(struct list_head *pages); void split_page(struct page *page, unsigned int order); int split_free_page(struct page *page); -int capture_free_page(struct page *page, int alloc_order, int migratetype); /* * Compound pages have a destructor function. Provide a diff --git a/mm/compaction.c b/mm/compaction.c index f8f5c11..c62bd06 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -816,6 +816,7 @@ static isolate_migrate_t isolate_migratepages(struct zone *zone, static int compact_finished(struct zone *zone, struct compact_control *cc) { + unsigned int order; unsigned long watermark; if (fatal_signal_pending(current)) @@ -850,22 +851,16 @@ static int compact_finished(struct zone *zone, return COMPACT_CONTINUE; /* Direct compactor: Is a suitable page free? */ - if (cc->page) { - /* Was a suitable page captured? */ - if (*cc->page) + for (order = cc->order; order < MAX_ORDER; order++) { + struct free_area *area = &zone->free_area[order]; + + /* Job done if page is free of the right migratetype */ + if (!list_empty(&area->free_list[cc->migratetype])) + return COMPACT_PARTIAL; + + /* Job done if allocation would set block type */ + if (cc->order >= pageblock_order && area->nr_free) return COMPACT_PARTIAL; - } else { - unsigned int order; - for (order = cc->order; order < MAX_ORDER; order++) { - struct free_area *area = &zone->free_area[cc->order]; - /* Job done if page is free of the right migratetype */ - if (!list_empty(&area->free_list[cc->migratetype])) - return COMPACT_PARTIAL; - - /* Job done if allocation would set block type */ - if (cc->order >= pageblock_order && area->nr_free) - return COMPACT_PARTIAL; - } } return COMPACT_CONTINUE; @@ -921,60 +916,6 @@ unsigned long compaction_suitable(struct zone *zone, int order) return COMPACT_CONTINUE; } -static void compact_capture_page(struct compact_control *cc) -{ - unsigned long flags; - int mtype, mtype_low, mtype_high; - - if (!cc->page || *cc->page) - return; - - /* - * For MIGRATE_MOVABLE allocations we capture a suitable page ASAP - * regardless of the migratetype of the freelist is is captured from. - * This is fine because the order for a high-order MIGRATE_MOVABLE - * allocation is typically at least a pageblock size and overall - * fragmentation is not impaired. Other allocation types must - * capture pages from their own migratelist because otherwise they - * could pollute other pageblocks like MIGRATE_MOVABLE with - * difficult to move pages and making fragmentation worse overall. - */ - if (cc->migratetype == MIGRATE_MOVABLE) { - mtype_low = 0; - mtype_high = MIGRATE_PCPTYPES; - } else { - mtype_low = cc->migratetype; - mtype_high = cc->migratetype + 1; - } - - /* Speculatively examine the free lists without zone lock */ - for (mtype = mtype_low; mtype < mtype_high; mtype++) { - int order; - for (order = cc->order; order < MAX_ORDER; order++) { - struct page *page; - struct free_area *area; - area = &(cc->zone->free_area[order]); - if (list_empty(&area->free_list[mtype])) - continue; - - /* Take the lock and attempt capture of the page */ - if (!compact_trylock_irqsave(&cc->zone->lock, &flags, cc)) - return; - if (!list_empty(&area->free_list[mtype])) { - page = list_entry(area->free_list[mtype].next, - struct page, lru); - if (capture_free_page(page, cc->order, mtype)) { - spin_unlock_irqrestore(&cc->zone->lock, - flags); - *cc->page = page; - return; - } - } - spin_unlock_irqrestore(&cc->zone->lock, flags); - } - } -} - static int compact_zone(struct zone *zone, struct compact_control *cc) { int ret; @@ -1054,9 +995,6 @@ static int compact_zone(struct zone *zone, struct compact_control *cc) goto out; } } - - /* Capture a page now if it is a suitable size */ - compact_capture_page(cc); } out: @@ -1069,8 +1007,7 @@ out: static unsigned long compact_zone_order(struct zone *zone, int order, gfp_t gfp_mask, - bool sync, bool *contended, - struct page **page) + bool sync, bool *contended) { unsigned long ret; struct compact_control cc = { @@ -1080,7 +1017,6 @@ static unsigned long compact_zone_order(struct zone *zone, .migratetype = allocflags_to_migratetype(gfp_mask), .zone = zone, .sync = sync, - .page = page, }; INIT_LIST_HEAD(&cc.freepages); INIT_LIST_HEAD(&cc.migratepages); @@ -1110,7 +1046,7 @@ int sysctl_extfrag_threshold = 500; */ unsigned long try_to_compact_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *nodemask, - bool sync, bool *contended, struct page **page) + bool sync, bool *contended) { enum zone_type high_zoneidx = gfp_zone(gfp_mask); int may_enter_fs = gfp_mask & __GFP_FS; @@ -1136,7 +1072,7 @@ unsigned long try_to_compact_pages(struct zonelist *zonelist, int status; status = compact_zone_order(zone, order, gfp_mask, sync, - contended, page); + contended); rc = max(status, rc); /* If a normal allocation would succeed, stop compacting */ @@ -1192,7 +1128,6 @@ int compact_pgdat(pg_data_t *pgdat, int order) struct compact_control cc = { .order = order, .sync = false, - .page = NULL, }; return __compact_pgdat(pgdat, &cc); @@ -1203,7 +1138,6 @@ static int compact_node(int nid) struct compact_control cc = { .order = -1, .sync = true, - .page = NULL, }; return __compact_pgdat(NODE_DATA(nid), &cc); diff --git a/mm/internal.h b/mm/internal.h index d597f94..9ba2110 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -135,7 +135,6 @@ struct compact_control { int migratetype; /* MOVABLE, RECLAIMABLE etc */ struct zone *zone; bool contended; /* True if a lock was contended */ - struct page **page; /* Page captured of requested size */ }; unsigned long diff --git a/mm/page_alloc.c b/mm/page_alloc.c index c957805..df2022f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1384,14 +1384,8 @@ void split_page(struct page *page, unsigned int order) set_page_refcounted(page + i); } -/* - * Similar to the split_page family of functions except that the page - * required at the given order and being isolated now to prevent races - * with parallel allocators - */ -int capture_free_page(struct page *page, int alloc_order, int migratetype) +static int __isolate_free_page(struct page *page, unsigned int order) { - unsigned int order; unsigned long watermark; struct zone *zone; int mt; @@ -1399,7 +1393,6 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype) BUG_ON(!PageBuddy(page)); zone = page_zone(page); - order = page_order(page); mt = get_pageblock_migratetype(page); if (mt != MIGRATE_ISOLATE) { @@ -1408,7 +1401,7 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype) if (!zone_watermark_ok(zone, 0, watermark, 0, 0)) return 0; - __mod_zone_freepage_state(zone, -(1UL << alloc_order), mt); + __mod_zone_freepage_state(zone, -(1UL << order), mt); } /* Remove page from free list */ @@ -1416,11 +1409,7 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype) zone->free_area[order].nr_free--; rmv_page_order(page); - if (alloc_order != order) - expand(zone, page, alloc_order, order, - &zone->free_area[order], migratetype); - - /* Set the pageblock if the captured page is at least a pageblock */ + /* Set the pageblock if the isolated page is at least a pageblock */ if (order >= pageblock_order - 1) { struct page *endpage = page + (1 << order) - 1; for (; page < endpage; page += pageblock_nr_pages) { @@ -1431,7 +1420,7 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype) } } - return 1UL << alloc_order; + return 1UL << order; } /* @@ -1449,10 +1438,9 @@ int split_free_page(struct page *page) unsigned int order; int nr_pages; - BUG_ON(!PageBuddy(page)); order = page_order(page); - nr_pages = capture_free_page(page, order, 0); + nr_pages = __isolate_free_page(page, order); if (!nr_pages) return 0; @@ -2136,8 +2124,6 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order, bool *contended_compaction, bool *deferred_compaction, unsigned long *did_some_progress) { - struct page *page = NULL; - if (!order) return NULL; @@ -2149,16 +2135,12 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order, current->flags |= PF_MEMALLOC; *did_some_progress = try_to_compact_pages(zonelist, order, gfp_mask, nodemask, sync_migration, - contended_compaction, &page); + contended_compaction); current->flags &= ~PF_MEMALLOC; - /* If compaction captured a page, prep and use it */ - if (page) { - prep_new_page(page, order, gfp_mask); - goto got_page; - } - if (*did_some_progress != COMPACT_SKIPPED) { + struct page *page; + /* Page migration frees to the PCP lists but we want merging */ drain_pages(get_cpu()); put_cpu(); @@ -2168,7 +2150,6 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order, alloc_flags & ~ALLOC_NO_WATERMARKS, preferred_zone, migratetype); if (page) { -got_page: preferred_zone->compact_blockskip_flush = false; preferred_zone->compact_considered = 0; preferred_zone->compact_defer_shift = 0; -- cgit v0.10.2 From a8906b0b673a8a64ae1446a7847def62388f6e46 Mon Sep 17 00:00:00 2001 From: Chen Gang Date: Fri, 11 Jan 2013 14:32:17 -0800 Subject: MAINTAINERS: Omar had moved Signed-off-by: Chen Gang Cc: Omar Ramirez Luna Cc: Omar Ramirez Luna Cc: David Miller Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index d57ce63..51ff2ae 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7333,7 +7333,7 @@ S: Odd Fixes F: drivers/staging/speakup/ STAGING - TI DSP BRIDGE DRIVERS -M: Omar Ramirez Luna +M: Omar Ramirez Luna S: Odd Fixes F: drivers/staging/tidspbridge/ -- cgit v0.10.2 From 3cb7a56344ca45ee56d71c5f8fe9f922306bff1f Mon Sep 17 00:00:00 2001 From: Michel Lespinasse Date: Fri, 11 Jan 2013 14:32:20 -0800 Subject: lib/rbtree.c: avoid the use of non-static __always_inline lib/rbtree.c declared __rb_erase_color() as __always_inline void, and then exported it with EXPORT_SYMBOL. This was because __rb_erase_color() must be exported for augmented rbtree users, but it must also be inlined into rb_erase() so that the dummy callback can get optimized out of that call site. (Actually with a modern compiler, none of the dummy callback functions should even be generated as separate text functions). The above usage is legal C, but it was unusual enough for some compilers to warn about it. This change makes things more explicit, with a static __always_inline ____rb_erase_color function for use in rb_erase(), and a separate non-inline __rb_erase_color function for use in rb_erase_augmented call sites. Signed-off-by: Michel Lespinasse Reported-by: Wu Fengguang Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h index 2ac60c9..fea49b5 100644 --- a/include/linux/rbtree_augmented.h +++ b/include/linux/rbtree_augmented.h @@ -123,9 +123,9 @@ __rb_change_child(struct rb_node *old, struct rb_node *new, extern void __rb_erase_color(struct rb_node *parent, struct rb_root *root, void (*augment_rotate)(struct rb_node *old, struct rb_node *new)); -static __always_inline void -rb_erase_augmented(struct rb_node *node, struct rb_root *root, - const struct rb_augment_callbacks *augment) +static __always_inline struct rb_node * +__rb_erase_augmented(struct rb_node *node, struct rb_root *root, + const struct rb_augment_callbacks *augment) { struct rb_node *child = node->rb_right, *tmp = node->rb_left; struct rb_node *parent, *rebalance; @@ -217,6 +217,14 @@ rb_erase_augmented(struct rb_node *node, struct rb_root *root, } augment->propagate(tmp, NULL); + return rebalance; +} + +static __always_inline void +rb_erase_augmented(struct rb_node *node, struct rb_root *root, + const struct rb_augment_callbacks *augment) +{ + struct rb_node *rebalance = __rb_erase_augmented(node, root, augment); if (rebalance) __rb_erase_color(rebalance, root, augment->rotate); } diff --git a/lib/rbtree.c b/lib/rbtree.c index 4f56a11..c0e31fe 100644 --- a/lib/rbtree.c +++ b/lib/rbtree.c @@ -194,8 +194,12 @@ __rb_insert(struct rb_node *node, struct rb_root *root, } } -__always_inline void -__rb_erase_color(struct rb_node *parent, struct rb_root *root, +/* + * Inline version for rb_erase() use - we want to be able to inline + * and eliminate the dummy_rotate callback there + */ +static __always_inline void +____rb_erase_color(struct rb_node *parent, struct rb_root *root, void (*augment_rotate)(struct rb_node *old, struct rb_node *new)) { struct rb_node *node = NULL, *sibling, *tmp1, *tmp2; @@ -355,6 +359,13 @@ __rb_erase_color(struct rb_node *parent, struct rb_root *root, } } } + +/* Non-inline version for rb_erase_augmented() use */ +void __rb_erase_color(struct rb_node *parent, struct rb_root *root, + void (*augment_rotate)(struct rb_node *old, struct rb_node *new)) +{ + ____rb_erase_color(parent, root, augment_rotate); +} EXPORT_SYMBOL(__rb_erase_color); /* @@ -380,7 +391,10 @@ EXPORT_SYMBOL(rb_insert_color); void rb_erase(struct rb_node *node, struct rb_root *root) { - rb_erase_augmented(node, root, &dummy_callbacks); + struct rb_node *rebalance; + rebalance = __rb_erase_augmented(node, root, &dummy_callbacks); + if (rebalance) + ____rb_erase_color(rebalance, root, dummy_rotate); } EXPORT_SYMBOL(rb_erase); -- cgit v0.10.2 From f7e9e230f41f991a6e3e7cb6096424fdfb626081 Mon Sep 17 00:00:00 2001 From: Amerigo Wang Date: Thu, 10 Jan 2013 22:52:54 +0000 Subject: qlge: remove NETIF_F_TSO6 flag It is werid that qlge driver supports NETIF_F_TSO6 but not NETIF_F_IPV6_CSUM. This also causes some kernel warning [1] when VLAN device setups on a qlge interface. I think the qlge hardware doesn't support NETIF_F_IPV6_CSUM, so we have to just remove the NETIF_F_TSO6 flag. After this patch, the TCP/IPv6 traffic becomes normal again, no kernel warnings any more. NOTE: I only tested it on 2.6.32 kernel, even if the upstream kernel could fix this automatically (it is hard to track NETIF* flags), removing it is also safe. 1. https://bugzilla.redhat.com/show_bug.cgi?id=891839 Cc: Jitendra Kalsaria Cc: Ron Mercer Cc: linux-driver@qlogic.com Cc: David S. Miller Signed-off-by: Cong Wang Acked-by: Jitendra Kalsaria Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c index f80cd97..3e73742 100644 --- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c +++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c @@ -4678,7 +4678,7 @@ static int qlge_probe(struct pci_dev *pdev, qdev = netdev_priv(ndev); SET_NETDEV_DEV(ndev, &pdev->dev); ndev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | - NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN | + NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_HW_VLAN_TX | NETIF_F_RXCSUM; ndev->features = ndev->hw_features | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER; -- cgit v0.10.2 From d07d7507bfb4e23735c9b83e397c43e1e8a173e8 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Thu, 10 Jan 2013 23:19:10 +0000 Subject: net, wireless: overwrite default_ethtool_ops Since: commit 2c60db037034d27f8c636403355d52872da92f81 Author: Eric Dumazet Date: Sun Sep 16 09:17:26 2012 +0000 net: provide a default dev->ethtool_ops wireless core does not correctly assign ethtool_ops. After alloc_netdev*() call, some cfg80211 drivers provide they own ethtool_ops, but some do not. For them, wireless core provide generic cfg80211_ethtool_ops, which is assigned in NETDEV_REGISTER notify call: if (!dev->ethtool_ops) dev->ethtool_ops = &cfg80211_ethtool_ops; But after Eric's commit, dev->ethtool_ops is no longer NULL (on cfg80211 drivers without custom ethtool_ops), but points to &default_ethtool_ops. In order to fix the problem, provide function which will overwrite default_ethtool_ops and use it by wireless core. Signed-off-by: Stanislaw Gruszka Acked-by: Johannes Berg Acked-by: Ben Hutchings Signed-off-by: David S. Miller diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index c599e47..9ef07d0 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -60,6 +60,9 @@ struct wireless_dev; #define SET_ETHTOOL_OPS(netdev,ops) \ ( (netdev)->ethtool_ops = (ops) ) +extern void netdev_set_default_ethtool_ops(struct net_device *dev, + const struct ethtool_ops *ops); + /* hardware address assignment types */ #define NET_ADDR_PERM 0 /* address is permanent (default) */ #define NET_ADDR_RANDOM 1 /* address is generated randomly */ diff --git a/net/core/dev.c b/net/core/dev.c index 515473e..f64e439b 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -6121,6 +6121,14 @@ struct netdev_queue *dev_ingress_queue_create(struct net_device *dev) static const struct ethtool_ops default_ethtool_ops; +void netdev_set_default_ethtool_ops(struct net_device *dev, + const struct ethtool_ops *ops) +{ + if (dev->ethtool_ops == &default_ethtool_ops) + dev->ethtool_ops = ops; +} +EXPORT_SYMBOL_GPL(netdev_set_default_ethtool_ops); + /** * alloc_netdev_mqs - allocate network device * @sizeof_priv: size of private data to allocate space for diff --git a/net/wireless/core.c b/net/wireless/core.c index 14d9904..b677eab 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -866,8 +866,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb, /* allow mac80211 to determine the timeout */ wdev->ps_timeout = -1; - if (!dev->ethtool_ops) - dev->ethtool_ops = &cfg80211_ethtool_ops; + netdev_set_default_ethtool_ops(dev, &cfg80211_ethtool_ops); if ((wdev->iftype == NL80211_IFTYPE_STATION || wdev->iftype == NL80211_IFTYPE_P2P_CLIENT || -- cgit v0.10.2 From 544ae6b2e676c3c37fb8c93ef9327932fc2e5bc2 Mon Sep 17 00:00:00 2001 From: Bo Shen Date: Fri, 11 Jan 2013 15:08:30 +0100 Subject: ARM: at91/dts: add pinctrl support for SSC peripheral Add pinctrl support for SSC on AT91 dtsi files. Signed-off-by: Bo Shen [nicolas.ferre@atmel.com: split dtsi and driver changes] Signed-off-by: Nicolas Ferre Reluctantly-acked-by: Olof Johansson Signed-off-by: Mark Brown diff --git a/arch/arm/boot/dts/at91sam9260.dtsi b/arch/arm/boot/dts/at91sam9260.dtsi index 68bccf4..cb7bcc5 100644 --- a/arch/arm/boot/dts/at91sam9260.dtsi +++ b/arch/arm/boot/dts/at91sam9260.dtsi @@ -306,6 +306,22 @@ }; }; + ssc0 { + pinctrl_ssc0_tx: ssc0_tx-0 { + atmel,pins = + <1 16 0x1 0x0 /* PB16 periph A */ + 1 17 0x1 0x0 /* PB17 periph A */ + 1 18 0x1 0x0>; /* PB18 periph A */ + }; + + pinctrl_ssc0_rx: ssc0_rx-0 { + atmel,pins = + <1 19 0x1 0x0 /* PB19 periph A */ + 1 20 0x1 0x0 /* PB20 periph A */ + 1 21 0x1 0x0>; /* PB21 periph A */ + }; + }; + pioA: gpio@fffff400 { compatible = "atmel,at91rm9200-gpio"; reg = <0xfffff400 0x200>; @@ -450,6 +466,8 @@ compatible = "atmel,at91rm9200-ssc"; reg = <0xfffbc000 0x4000>; interrupts = <14 4 5>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ssc0_tx &pinctrl_ssc0_rx>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi index 32ec62c..271d4de 100644 --- a/arch/arm/boot/dts/at91sam9263.dtsi +++ b/arch/arm/boot/dts/at91sam9263.dtsi @@ -271,6 +271,38 @@ }; }; + ssc0 { + pinctrl_ssc0_tx: ssc0_tx-0 { + atmel,pins = + <1 0 0x2 0x0 /* PB0 periph B */ + 1 1 0x2 0x0 /* PB1 periph B */ + 1 2 0x2 0x0>; /* PB2 periph B */ + }; + + pinctrl_ssc0_rx: ssc0_rx-0 { + atmel,pins = + <1 3 0x2 0x0 /* PB3 periph B */ + 1 4 0x2 0x0 /* PB4 periph B */ + 1 5 0x2 0x0>; /* PB5 periph B */ + }; + }; + + ssc1 { + pinctrl_ssc1_tx: ssc1_tx-0 { + atmel,pins = + <1 6 0x1 0x0 /* PB6 periph A */ + 1 7 0x1 0x0 /* PB7 periph A */ + 1 8 0x1 0x0>; /* PB8 periph A */ + }; + + pinctrl_ssc1_rx: ssc1_rx-0 { + atmel,pins = + <1 9 0x1 0x0 /* PB9 periph A */ + 1 10 0x1 0x0 /* PB10 periph A */ + 1 11 0x1 0x0>; /* PB11 periph A */ + }; + }; + pioA: gpio@fffff200 { compatible = "atmel,at91rm9200-gpio"; reg = <0xfffff200 0x200>; @@ -368,6 +400,8 @@ compatible = "atmel,at91rm9200-ssc"; reg = <0xfff98000 0x4000>; interrupts = <16 4 5>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ssc0_tx &pinctrl_ssc0_rx>; status = "disabled"; }; @@ -375,6 +409,8 @@ compatible = "atmel,at91rm9200-ssc"; reg = <0xfff9c000 0x4000>; interrupts = <17 4 5>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ssc1_tx &pinctrl_ssc1_rx>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi index 231858f..6b1d4ca 100644 --- a/arch/arm/boot/dts/at91sam9g45.dtsi +++ b/arch/arm/boot/dts/at91sam9g45.dtsi @@ -290,6 +290,38 @@ }; }; + ssc0 { + pinctrl_ssc0_tx: ssc0_tx-0 { + atmel,pins = + <3 0 0x1 0x0 /* PD0 periph A */ + 3 1 0x1 0x0 /* PD1 periph A */ + 3 2 0x1 0x0>; /* PD2 periph A */ + }; + + pinctrl_ssc0_rx: ssc0_rx-0 { + atmel,pins = + <3 3 0x1 0x0 /* PD3 periph A */ + 3 4 0x1 0x0 /* PD4 periph A */ + 3 5 0x1 0x0>; /* PD5 periph A */ + }; + }; + + ssc1 { + pinctrl_ssc1_tx: ssc1_tx-0 { + atmel,pins = + <3 10 0x1 0x0 /* PD10 periph A */ + 3 11 0x1 0x0 /* PD11 periph A */ + 3 12 0x1 0x0>; /* PD12 periph A */ + }; + + pinctrl_ssc1_rx: ssc1_rx-0 { + atmel,pins = + <3 13 0x1 0x0 /* PD13 periph A */ + 3 14 0x1 0x0 /* PD14 periph A */ + 3 15 0x1 0x0>; /* PD15 periph A */ + }; + }; + pioA: gpio@fffff200 { compatible = "atmel,at91rm9200-gpio"; reg = <0xfffff200 0x200>; @@ -425,6 +457,8 @@ compatible = "atmel,at91sam9g45-ssc"; reg = <0xfff9c000 0x4000>; interrupts = <16 4 5>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ssc0_tx &pinctrl_ssc0_rx>; status = "disabled"; }; @@ -432,6 +466,8 @@ compatible = "atmel,at91sam9g45-ssc"; reg = <0xfffa0000 0x4000>; interrupts = <17 4 5>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ssc1_tx &pinctrl_ssc1_rx>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi index e9efb34..80e29c6 100644 --- a/arch/arm/boot/dts/at91sam9n12.dtsi +++ b/arch/arm/boot/dts/at91sam9n12.dtsi @@ -28,6 +28,7 @@ tcb1 = &tcb1; i2c0 = &i2c0; i2c1 = &i2c1; + ssc0 = &ssc0; }; cpus { cpu@0 { @@ -244,6 +245,22 @@ }; }; + ssc0 { + pinctrl_ssc0_tx: ssc0_tx-0 { + atmel,pins = + <0 24 0x2 0x0 /* PA24 periph B */ + 0 25 0x2 0x0 /* PA25 periph B */ + 0 26 0x2 0x0>; /* PA26 periph B */ + }; + + pinctrl_ssc0_rx: ssc0_rx-0 { + atmel,pins = + <0 27 0x2 0x0 /* PA27 periph B */ + 0 28 0x2 0x0 /* PA28 periph B */ + 0 29 0x2 0x0>; /* PA29 periph B */ + }; + }; + pioA: gpio@fffff400 { compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio"; reg = <0xfffff400 0x200>; @@ -294,6 +311,15 @@ status = "disabled"; }; + ssc0: ssc@f0010000 { + compatible = "atmel,at91sam9g45-ssc"; + reg = <0xf0010000 0x4000>; + interrupts = <28 4 5>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ssc0_tx &pinctrl_ssc0_rx>; + status = "disabled"; + }; + usart0: serial@f801c000 { compatible = "atmel,at91sam9260-usart"; reg = <0xf801c000 0x4000>; diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi index 40ac3a4..3a47cf9 100644 --- a/arch/arm/boot/dts/at91sam9x5.dtsi +++ b/arch/arm/boot/dts/at91sam9x5.dtsi @@ -88,13 +88,6 @@ interrupts = <1 4 7>; }; - ssc0: ssc@f0010000 { - compatible = "atmel,at91sam9g45-ssc"; - reg = <0xf0010000 0x4000>; - interrupts = <28 4 5>; - status = "disabled"; - }; - tcb0: timer@f8008000 { compatible = "atmel,at91sam9x5-tcb"; reg = <0xf8008000 0x100>; @@ -290,6 +283,22 @@ }; }; + ssc0 { + pinctrl_ssc0_tx: ssc0_tx-0 { + atmel,pins = + <0 24 0x2 0x0 /* PA24 periph B */ + 0 25 0x2 0x0 /* PA25 periph B */ + 0 26 0x2 0x0>; /* PA26 periph B */ + }; + + pinctrl_ssc0_rx: ssc0_rx-0 { + atmel,pins = + <0 27 0x2 0x0 /* PA27 periph B */ + 0 28 0x2 0x0 /* PA28 periph B */ + 0 29 0x2 0x0>; /* PA29 periph B */ + }; + }; + pioA: gpio@fffff400 { compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio"; reg = <0xfffff400 0x200>; @@ -333,6 +342,15 @@ }; }; + ssc0: ssc@f0010000 { + compatible = "atmel,at91sam9g45-ssc"; + reg = <0xf0010000 0x4000>; + interrupts = <28 4 5>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ssc0_tx &pinctrl_ssc0_rx>; + status = "disabled"; + }; + mmc0: mmc@f0008000 { compatible = "atmel,hsmci"; reg = <0xf0008000 0x600>; -- cgit v0.10.2 From ea03c81521bde526570e1dec96eaa21fe5ac84a2 Mon Sep 17 00:00:00 2001 From: Bo Shen Date: Fri, 11 Jan 2013 15:08:31 +0100 Subject: ASoC: atmel-ssc: add pinctrl selection to driver Add default pinctrl selection to atmel-ssc driver. The pinctrl is mandatory. Signed-off-by: Bo Shen [nicolas.ferre@atmel.com: split dtsi and driver changes] Signed-off-by: Nicolas Ferre Signed-off-by: Mark Brown diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c index 158da5a..3c09cbb 100644 --- a/drivers/misc/atmel-ssc.c +++ b/drivers/misc/atmel-ssc.c @@ -19,6 +19,7 @@ #include #include +#include /* Serialize access to ssc_list and user count */ static DEFINE_SPINLOCK(user_lock); @@ -131,6 +132,13 @@ static int ssc_probe(struct platform_device *pdev) struct resource *regs; struct ssc_device *ssc; const struct atmel_ssc_platform_data *plat_dat; + struct pinctrl *pinctrl; + + pinctrl = devm_pinctrl_get_select_default(&pdev->dev); + if (IS_ERR(pinctrl)) { + dev_err(&pdev->dev, "Failed to request pinctrl\n"); + return PTR_ERR(pinctrl); + } ssc = devm_kzalloc(&pdev->dev, sizeof(struct ssc_device), GFP_KERNEL); if (!ssc) { -- cgit v0.10.2 From eb614c8b467f7f309541e6e6be9d27a9cf6badd5 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 11 Jan 2013 18:06:21 +0100 Subject: USB: select USB_ARCH_HAS_EHCI for MXS Commit 09f6ffde (USB: EHCI: fix build error by making ChipIdea host a normal EHCI driver) introduced a dependency on USB_EHCI_HCD for the chipidea USB host driver, that in turns depends on USB_ARCH_HAS_EHCI. If this symbol is not set for MXS, the MXS boards are not able to use the chipidea driver anymore. Signed-off-by: Maxime Ripard Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index 4c90b51..640ae6c 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -37,6 +37,7 @@ config USB_ARCH_HAS_EHCI default y if ARCH_W90X900 default y if ARCH_AT91 default y if ARCH_MXC + default y if ARCH_MXS default y if ARCH_OMAP3 default y if ARCH_CNS3XXX default y if ARCH_VT8500 -- cgit v0.10.2 From 7c1029ba17f3d2596b05a6521d438c9bdc09a673 Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Tue, 4 Dec 2012 14:23:21 +0100 Subject: USB: fsl-mph-dr-of: fix regression on mpc5121e fsl-ehci probing fails on mpc5121e: ... ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1 fsl-ehci fsl-ehci.0: Could not get controller version fsl-ehci fsl-ehci.0: can't setup fsl-ehci fsl-ehci.0: USB bus 1 deregistered fsl-ehci fsl-ehci.0: init fsl-ehci.0 fail, -22 fsl-ehci: probe of fsl-ehci.0 failed with error -22 Fix it by returning appropriate version info for mpc5121, too. Signed-off-by: Anatolij Gustschin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c index 5105127..11e0b79 100644 --- a/drivers/usb/host/fsl-mph-dr-of.c +++ b/drivers/usb/host/fsl-mph-dr-of.c @@ -142,6 +142,9 @@ static int usb_get_ver_info(struct device_node *np) return ver; } + if (of_device_is_compatible(np, "fsl,mpc5121-usb2-dr")) + return FSL_USB_VER_OLD; + if (of_device_is_compatible(np, "fsl-usb2-mph")) { if (of_device_is_compatible(np, "fsl-usb2-mph-v1.6")) ver = FSL_USB_VER_1_6; -- cgit v0.10.2 From 929473ea05db455ad88cdc081f2adc556b8dc48f Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sat, 22 Dec 2012 09:24:11 -0200 Subject: usb: chipidea: Allow disabling streaming not only in udc mode When running a scp transfer using a USB/Ethernet adapter the following crash happens: $ scp test.tar.gz fabio@192.168.1.100:/home/fabio fabio@192.168.1.100's password: test.tar.gz 0% 0 0.0KB/s --:-- ETA ------------[ cut here ]------------ WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0x2cc/0x2f0() NETDEV WATCHDOG: eth0 (asix): transmit queue 0 timed out Modules linked in: Backtrace: [<80011c94>] (dump_backtrace+0x0/0x10c) from [<804d3a5c>] (dump_stack+0x18/0x1c) r6:000000ff r5:80412388 r4:80685dc0 r3:80696cc0 [<804d3a44>] (dump_stack+0x0/0x1c) from [<80021868>] (warn_slowpath_common+0x54/0x6c) [<80021814>] (warn_slowpath_common+0x0/0x6c) from [<80021924>] (warn_slowpath_fmt+0x38/0x40) ... Setting SDIS (Stream Disable Mode- bit 4 of USBMODE register) fixes the problem. However, in current code CI13XXX_DISABLE_STREAMING flag is only set in udc mode, so allow disabling streaming also in host mode. Tested on a mx6qsabrelite board. Suggested-by: Peter Chen Signed-off-by: Fabio Estevam Reviewed-by: Peter Chen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index caecad9..8e9d312 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -70,6 +70,9 @@ static int host_start(struct ci13xxx *ci) else ci->hcd = hcd; + if (ci->platdata->flags & CI13XXX_DISABLE_STREAMING) + hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS); + return ret; } -- cgit v0.10.2 From f66dea709cd9309b2ee9f715697818001fb518de Mon Sep 17 00:00:00 2001 From: Anatolij Gustschin Date: Tue, 4 Dec 2012 14:24:30 +0100 Subject: USB: ehci-fsl: fix regression on mpc5121e mpc5121e doesn't have system interface registers, accessing this register address space cause the machine check exception and a kernel crash: ... Machine check in kernel mode. Caused by (from SRR1=49030): Transfer error ack signal Oops: Machine check, sig: 7 [#1] MPC5121 ADS Modules linked in: NIP: c025fd60 LR: c0265bb4 CTR: 00000000 REGS: df82dac0 TRAP: 0200 Not tainted (3.7.0-rc7-00641-g81e6c91) MSR: 00049030 CR: 42002024 XER: 20000000 TASK = df824b70[1] 'swapper' THREAD: df82c000 GPR00: 00000000 df82db70 df824b70 df3ed0f0 00000003 00000000 00000000 00000000 GPR08: 00000020 32000000 c03550ec 20000000 22002028 00000000 c0003f5c 00000000 GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 c0423898 c0450000 GPR24: 00000077 00000002 e5086180 1c000c00 e5086000 df33ec00 00000003 df34e000 NIP [c025fd60] ehci_fsl_setup_phy+0xd0/0x354 LR [c0265bb4] ehci_fsl_setup+0x220/0x284 ... Fix it by checking 'have_sysif_regs' flag before register access. Signed-off-by: Anatolij Gustschin Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index fd9b542..d81d2fc 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -230,7 +230,7 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd, switch (phy_mode) { case FSL_USB2_PHY_ULPI: - if (pdata->controller_ver) { + if (pdata->have_sysif_regs && pdata->controller_ver) { /* controller version 1.6 or above */ setbits32(non_ehci + FSL_SOC_USB_CTRL, ULPI_PHY_CLK_SEL); @@ -251,7 +251,7 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd, portsc |= PORT_PTS_PTW; /* fall through */ case FSL_USB2_PHY_UTMI: - if (pdata->controller_ver) { + if (pdata->have_sysif_regs && pdata->controller_ver) { /* controller version 1.6 or above */ setbits32(non_ehci + FSL_SOC_USB_CTRL, UTMI_PHY_EN); mdelay(FSL_UTMI_PHY_DLY); /* Delay for UTMI PHY CLK to @@ -267,7 +267,8 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd, break; } - if (pdata->controller_ver && (phy_mode == FSL_USB2_PHY_ULPI)) { + if (pdata->have_sysif_regs && pdata->controller_ver && + (phy_mode == FSL_USB2_PHY_ULPI)) { /* check PHY_CLK_VALID to get phy clk valid */ if (!spin_event_timeout(in_be32(non_ehci + FSL_SOC_USB_CTRL) & PHY_CLK_VALID, FSL_USB_PHY_CLK_TIMEOUT, 0)) { @@ -278,7 +279,7 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd, ehci_writel(ehci, portsc, &ehci->regs->port_status[port_offset]); - if (phy_mode != FSL_USB2_PHY_ULPI) + if (phy_mode != FSL_USB2_PHY_ULPI && pdata->have_sysif_regs) setbits32(non_ehci + FSL_SOC_USB_CTRL, USB_CTRL_USB_EN); return 0; -- cgit v0.10.2 From bc009eca8d539162f7271c2daf0ab5e9e3bb90a0 Mon Sep 17 00:00:00 2001 From: Andreas Fleig Date: Wed, 5 Dec 2012 16:17:49 +0100 Subject: USB: Add device quirk for Microsoft VX700 webcam Add device quirk for Microsoft Lifecam VX700 v2.0 webcams. Fixes squeaking noise of the microphone. Signed-off-by: Andreas Fleig Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index fdefd9c..3113c1d 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -43,6 +43,9 @@ static const struct usb_device_id usb_quirk_list[] = { /* Creative SB Audigy 2 NX */ { USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Microsoft LifeCam-VX700 v2.0 */ + { USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Logitech Quickcam Fusion */ { USB_DEVICE(0x046d, 0x08c1), .driver_info = USB_QUIRK_RESET_RESUME }, -- cgit v0.10.2 From 8e8de5ab37c877e8a40a864de05a18a00b4e74b7 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 10 Jan 2013 14:32:39 +0200 Subject: usb: host: ohci-tmio: fix compile warning Fix the following compile warning: In file included from drivers/usb/host/ohci-hcd.c:1170:0: drivers/usb/host/ohci-tmio.c: In function 'tmio_start_hc': drivers/usb/host/ohci-tmio.c:130:2: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'resource_size_t' [-Wformat] seen on ARM 32-bit builds. Signed-off-by: Felipe Balbi Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c index d370245..5e3a6de 100644 --- a/drivers/usb/host/ohci-tmio.c +++ b/drivers/usb/host/ohci-tmio.c @@ -128,7 +128,8 @@ static void tmio_start_hc(struct platform_device *dev) tmio_iowrite8(2, tmio->ccr + CCR_INTC); dev_info(&dev->dev, "revision %d @ 0x%08llx, irq %d\n", - tmio_ioread8(tmio->ccr + CCR_REVID), hcd->rsrc_start, hcd->irq); + tmio_ioread8(tmio->ccr + CCR_REVID), + (u64) hcd->rsrc_start, hcd->irq); } static int ohci_tmio_start(struct usb_hcd *hcd) -- cgit v0.10.2 From b8deabd3eebaa96cf8d6e290d67b03f36c7f7a41 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Fri, 11 Jan 2013 16:59:32 +0000 Subject: tuntap: switch to use rtnl_dereference() Switch to use rtnl_dereference() instead of the open code, suggested by Eric. Cc: Eric Dumazet Signed-off-by: Jason Wang Signed-off-by: David S. Miller diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 99b58d86..aa963c4 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -404,8 +404,8 @@ static void __tun_detach(struct tun_file *tfile, bool clean) struct tun_struct *tun; struct net_device *dev; - tun = rcu_dereference_protected(tfile->tun, - lockdep_rtnl_is_held()); + tun = rtnl_dereference(tfile->tun); + if (tun) { u16 index = tfile->queue_index; BUG_ON(index >= tun->numqueues); @@ -414,8 +414,7 @@ static void __tun_detach(struct tun_file *tfile, bool clean) rcu_assign_pointer(tun->tfiles[index], tun->tfiles[tun->numqueues - 1]); rcu_assign_pointer(tfile->tun, NULL); - ntfile = rcu_dereference_protected(tun->tfiles[index], - lockdep_rtnl_is_held()); + ntfile = rtnl_dereference(tun->tfiles[index]); ntfile->queue_index = index; --tun->numqueues; @@ -458,8 +457,7 @@ static void tun_detach_all(struct net_device *dev) int i, n = tun->numqueues; for (i = 0; i < n; i++) { - tfile = rcu_dereference_protected(tun->tfiles[i], - lockdep_rtnl_is_held()); + tfile = rtnl_dereference(tun->tfiles[i]); BUG_ON(!tfile); wake_up_all(&tfile->wq.wait); rcu_assign_pointer(tfile->tun, NULL); @@ -469,8 +467,7 @@ static void tun_detach_all(struct net_device *dev) synchronize_net(); for (i = 0; i < n; i++) { - tfile = rcu_dereference_protected(tun->tfiles[i], - lockdep_rtnl_is_held()); + tfile = rtnl_dereference(tun->tfiles[i]); /* Drop read queue */ skb_queue_purge(&tfile->sk.sk_receive_queue); sock_put(&tfile->sk); @@ -489,7 +486,7 @@ static int tun_attach(struct tun_struct *tun, struct file *file) int err; err = -EINVAL; - if (rcu_dereference_protected(tfile->tun, lockdep_rtnl_is_held())) + if (rtnl_dereference(tfile->tun)) goto out; if (tfile->detached && tun != tfile->detached) goto out; @@ -1740,8 +1737,7 @@ static void tun_detach_filter(struct tun_struct *tun, int n) struct tun_file *tfile; for (i = 0; i < n; i++) { - tfile = rcu_dereference_protected(tun->tfiles[i], - lockdep_rtnl_is_held()); + tfile = rtnl_dereference(tun->tfiles[i]); sk_detach_filter(tfile->socket.sk); } @@ -1754,8 +1750,7 @@ static int tun_attach_filter(struct tun_struct *tun) struct tun_file *tfile; for (i = 0; i < tun->numqueues; i++) { - tfile = rcu_dereference_protected(tun->tfiles[i], - lockdep_rtnl_is_held()); + tfile = rtnl_dereference(tun->tfiles[i]); ret = sk_attach_filter(&tun->fprog, tfile->socket.sk); if (ret) { tun_detach_filter(tun, i); @@ -1773,8 +1768,7 @@ static void tun_set_sndbuf(struct tun_struct *tun) int i; for (i = 0; i < tun->numqueues; i++) { - tfile = rcu_dereference_protected(tun->tfiles[i], - lockdep_rtnl_is_held()); + tfile = rtnl_dereference(tun->tfiles[i]); tfile->socket.sk->sk_sndbuf = tun->sndbuf; } } @@ -1794,8 +1788,7 @@ static int tun_set_queue(struct file *file, struct ifreq *ifr) else ret = tun_attach(tun, file); } else if (ifr->ifr_flags & IFF_DETACH_QUEUE) { - tun = rcu_dereference_protected(tfile->tun, - lockdep_rtnl_is_held()); + tun = rtnl_dereference(tfile->tun); if (!tun || !(tun->flags & TUN_TAP_MQ)) ret = -EINVAL; else -- cgit v0.10.2 From 7c0c3b1a8a175437991ccc898ed66ec5e4a96208 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Fri, 11 Jan 2013 16:59:33 +0000 Subject: tuntap: forbid calling TUNSETIFF when detached Michael points out that even after Stefan's fix the TUNSETIFF is still allowed to create a new tap device. This because we only check tfile->tun but the tfile->detached were introduced. Fix this by failing early in tun_set_iff() if the file is detached. After this fix, there's no need to do the check again in tun_set_iff(), so this patch removes it. Cc: Michael S. Tsirkin Cc: Stefan Hajnoczi Signed-off-by: Jason Wang Signed-off-by: David S. Miller diff --git a/drivers/net/tun.c b/drivers/net/tun.c index aa963c4..a36b56f 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -488,8 +488,6 @@ static int tun_attach(struct tun_struct *tun, struct file *file) err = -EINVAL; if (rtnl_dereference(tfile->tun)) goto out; - if (tfile->detached && tun != tfile->detached) - goto out; err = -EBUSY; if (!(tun->flags & TUN_TAP_MQ) && tun->numqueues == 1) @@ -1543,6 +1541,9 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) struct net_device *dev; int err; + if (tfile->detached) + return -EINVAL; + dev = __dev_get_by_name(net, ifr->ifr_name); if (dev) { if (ifr->ifr_flags & IFF_TUN_EXCL) -- cgit v0.10.2 From dd38bd853082355641d0034aaf368e13ef2438f8 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Fri, 11 Jan 2013 16:59:34 +0000 Subject: tuntap: fix leaking reference count Reference count leaking of both module and sock were found: - When a detached file were closed, its sock refcnt from device were not released, solving this by add the sock_put(). - The module were hold or drop unconditionally in TUNSETPERSIST, which means we if we set the persist flag for N times, we need unset it for another N times. Solving this by only hold or drop an reference when there's a flag change and also drop the reference count when the persist device is deleted. Signed-off-by: Jason Wang Signed-off-by: David S. Miller diff --git a/drivers/net/tun.c b/drivers/net/tun.c index a36b56f..af372d0 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -428,8 +428,10 @@ static void __tun_detach(struct tun_file *tfile, bool clean) /* Drop read queue */ skb_queue_purge(&tfile->sk.sk_receive_queue); tun_set_real_num_queues(tun); - } else if (tfile->detached && clean) + } else if (tfile->detached && clean) { tun = tun_enable_queue(tfile); + sock_put(&tfile->sk); + } if (clean) { if (tun && tun->numqueues == 0 && tun->numdisabled == 0 && @@ -478,6 +480,9 @@ static void tun_detach_all(struct net_device *dev) sock_put(&tfile->sk); } BUG_ON(tun->numdisabled != 0); + + if (tun->flags & TUN_PERSIST) + module_put(THIS_MODULE); } static int tun_attach(struct tun_struct *tun, struct file *file) @@ -1874,10 +1879,11 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd, /* Disable/Enable persist mode. Keep an extra reference to the * module to prevent the module being unprobed. */ - if (arg) { + if (arg && !(tun->flags & TUN_PERSIST)) { tun->flags |= TUN_PERSIST; __module_get(THIS_MODULE); - } else { + } + if (!arg && (tun->flags & TUN_PERSIST)) { tun->flags &= ~TUN_PERSIST; module_put(THIS_MODULE); } -- cgit v0.10.2 From a412a11d6a24aebb6a898ed5d4e1c0725b638da3 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Sat, 12 Jan 2013 14:00:06 +0100 Subject: ACPI / glue: Fix build with ACPI_GLUE_DEBUG set If ACPI_GLUE_DEBUG is different from 0 (setting this requires a manual change of glue.c), build breaks because of a leftover reference to dev->acpi_handle in acpi_platform_notify(). Fix this by using ACPI_HANDLE(dev) instead as appropriate. [rjw: Subject and changelog] Signed-off-by: Yinghai Lu Signed-off-by: Rafael J. Wysocki diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 95af6f6..35da181 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -297,7 +297,7 @@ static int acpi_platform_notify(struct device *dev) if (!ret) { struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; - acpi_get_name(dev->acpi_handle, ACPI_FULL_PATHNAME, &buffer); + acpi_get_name(ACPI_HANDLE(dev), ACPI_FULL_PATHNAME, &buffer); DBG("Device %s -> %s\n", dev_name(dev), (char *)buffer.pointer); kfree(buffer.pointer); } else -- cgit v0.10.2 From 171c4006fb1b42a084057a71c86776e9f1b8e62c Mon Sep 17 00:00:00 2001 From: Gerald Schaefer Date: Wed, 9 Jan 2013 18:49:51 +0100 Subject: s390/mm: fix pmd_pfn() for thp The pfn calculation in pmd_pfn() is broken for thp, because it uses HPAGE_SHIFT instead of the normal PAGE_SHIFT. This is fixed by removing the distinction between thp and normal pmds in that function, and always using PAGE_SHIFT. Reported-by: Christian Borntraeger Signed-off-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index c928dc1..c1d7930 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -1387,10 +1387,7 @@ static inline int has_transparent_hugepage(void) static inline unsigned long pmd_pfn(pmd_t pmd) { - if (pmd_trans_huge(pmd)) - return pmd_val(pmd) >> HPAGE_SHIFT; - else - return pmd_val(pmd) >> PAGE_SHIFT; + return pmd_val(pmd) >> PAGE_SHIFT; } #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ -- cgit v0.10.2 From 7bdc229fad1d42beda70f1966042262470660082 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Fri, 11 Jan 2013 15:26:01 +0100 Subject: s390: use -fPIC for module compile The xfs module uses a lot of tracepoint, with TRACEPOINTS=y and a few debugging options the GOT table of the xfs module will get bigger than 4K. To get a working xfs module it needs to be compiled with -fPIC instead of -fpic. To play safe use -fPIC for all modules. Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 4b8e08b..7e3ce78 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -24,8 +24,8 @@ CHECKFLAGS += -D__s390__ -msize-long else LD_BFD := elf64-s390 LDFLAGS := -m elf64_s390 -KBUILD_AFLAGS_MODULE += -fpic -D__PIC__ -KBUILD_CFLAGS_MODULE += -fpic -D__PIC__ +KBUILD_AFLAGS_MODULE += -fPIC +KBUILD_CFLAGS_MODULE += -fPIC KBUILD_CFLAGS += -m64 KBUILD_AFLAGS += -m64 UTS_MACHINE := s390x -- cgit v0.10.2 From b7c13f76fda994284521f6ef996119c25282bdeb Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Tue, 1 Jan 2013 16:02:33 +0100 Subject: sparc: remove __devinit, __devexit annotations __devinit, __devexit annotations are nops - so drop them. Likewise for __devexit_p. Adjusted alignment of arguments when needed. Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller diff --git a/arch/sparc/include/asm/parport.h b/arch/sparc/include/asm/parport.h index cb33608..c55291e 100644 --- a/arch/sparc/include/asm/parport.h +++ b/arch/sparc/include/asm/parport.h @@ -103,7 +103,7 @@ static inline unsigned int get_dma_residue(unsigned int dmanr) return ebus_dma_residue(&sparc_ebus_dmas[dmanr].info); } -static int __devinit ecpp_probe(struct platform_device *op) +static int ecpp_probe(struct platform_device *op) { unsigned long base = op->resource[0].start; unsigned long config = op->resource[1].start; @@ -192,7 +192,7 @@ out_err: return err; } -static int __devexit ecpp_remove(struct platform_device *op) +static int ecpp_remove(struct platform_device *op) { struct parport *p = dev_get_drvdata(&op->dev); int slot = p->dma; @@ -242,7 +242,7 @@ static struct platform_driver ecpp_driver = { .of_match_table = ecpp_match, }, .probe = ecpp_probe, - .remove = __devexit_p(ecpp_remove), + .remove = ecpp_remove, }; static int parport_pc_find_nonpci_ports(int autoirq, int autodma) diff --git a/arch/sparc/include/asm/timer_64.h b/arch/sparc/include/asm/timer_64.h index ef3c368..01197d8 100644 --- a/arch/sparc/include/asm/timer_64.h +++ b/arch/sparc/include/asm/timer_64.h @@ -24,7 +24,7 @@ struct sparc64_tick_ops { extern struct sparc64_tick_ops *tick_ops; extern unsigned long sparc64_get_clock_tick(unsigned int cpu); -extern void __devinit setup_sparc64_timer(void); +extern void setup_sparc64_timer(void); extern void __init time_init(void); #endif /* _SPARC64_TIMER_H */ diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c index 812e10b..348fa1a 100644 --- a/arch/sparc/kernel/apc.c +++ b/arch/sparc/kernel/apc.c @@ -31,7 +31,7 @@ #define APC_DEVNAME "apc" static u8 __iomem *regs; -static int apc_no_idle __devinitdata = 0; +static int apc_no_idle = 0; #define apc_readb(offs) (sbus_readb(regs+offs)) #define apc_writeb(val, offs) (sbus_writeb(val, regs+offs)) @@ -138,7 +138,7 @@ static const struct file_operations apc_fops = { static struct miscdevice apc_miscdev = { APC_MINOR, APC_DEVNAME, &apc_fops }; -static int __devinit apc_probe(struct platform_device *op) +static int apc_probe(struct platform_device *op) { int err; diff --git a/arch/sparc/kernel/auxio_64.c b/arch/sparc/kernel/auxio_64.c index 773091a..86e5577 100644 --- a/arch/sparc/kernel/auxio_64.c +++ b/arch/sparc/kernel/auxio_64.c @@ -102,7 +102,7 @@ static const struct of_device_id auxio_match[] = { MODULE_DEVICE_TABLE(of, auxio_match); -static int __devinit auxio_probe(struct platform_device *dev) +static int auxio_probe(struct platform_device *dev) { struct device_node *dp = dev->dev.of_node; unsigned long size; diff --git a/arch/sparc/kernel/central.c b/arch/sparc/kernel/central.c index 9708851..052b5a4 100644 --- a/arch/sparc/kernel/central.c +++ b/arch/sparc/kernel/central.c @@ -33,7 +33,7 @@ struct fhc { struct platform_device leds_pdev; }; -static int __devinit clock_board_calc_nslots(struct clock_board *p) +static int clock_board_calc_nslots(struct clock_board *p) { u8 reg = upa_readb(p->clock_regs + CLOCK_STAT1) & 0xc0; @@ -60,7 +60,7 @@ static int __devinit clock_board_calc_nslots(struct clock_board *p) } } -static int __devinit clock_board_probe(struct platform_device *op) +static int clock_board_probe(struct platform_device *op) { struct clock_board *p = kzalloc(sizeof(*p), GFP_KERNEL); int err = -ENOMEM; @@ -157,7 +157,7 @@ static struct platform_driver clock_board_driver = { }, }; -static int __devinit fhc_probe(struct platform_device *op) +static int fhc_probe(struct platform_device *op) { struct fhc *p = kzalloc(sizeof(*p), GFP_KERNEL); int err = -ENOMEM; diff --git a/arch/sparc/kernel/chmc.c b/arch/sparc/kernel/chmc.c index 5f45026..dbb210d 100644 --- a/arch/sparc/kernel/chmc.c +++ b/arch/sparc/kernel/chmc.c @@ -336,9 +336,9 @@ static int jbusmc_print_dimm(int syndrome_code, return 0; } -static u64 __devinit jbusmc_dimm_group_size(u64 base, - const struct linux_prom64_registers *mem_regs, - int num_mem_regs) +static u64 jbusmc_dimm_group_size(u64 base, + const struct linux_prom64_registers *mem_regs, + int num_mem_regs) { u64 max = base + (8UL * 1024 * 1024 * 1024); u64 max_seen = base; @@ -363,10 +363,10 @@ static u64 __devinit jbusmc_dimm_group_size(u64 base, return max_seen - base; } -static void __devinit jbusmc_construct_one_dimm_group(struct jbusmc *p, - unsigned long index, - const struct linux_prom64_registers *mem_regs, - int num_mem_regs) +static void jbusmc_construct_one_dimm_group(struct jbusmc *p, + unsigned long index, + const struct linux_prom64_registers *mem_regs, + int num_mem_regs) { struct jbusmc_dimm_group *dp = &p->dimm_groups[index]; @@ -378,9 +378,9 @@ static void __devinit jbusmc_construct_one_dimm_group(struct jbusmc *p, dp->size = jbusmc_dimm_group_size(dp->base_addr, mem_regs, num_mem_regs); } -static void __devinit jbusmc_construct_dimm_groups(struct jbusmc *p, - const struct linux_prom64_registers *mem_regs, - int num_mem_regs) +static void jbusmc_construct_dimm_groups(struct jbusmc *p, + const struct linux_prom64_registers *mem_regs, + int num_mem_regs) { if (p->mc_reg_1 & JB_MC_REG1_DIMM1_BANK0) { jbusmc_construct_one_dimm_group(p, 0, mem_regs, num_mem_regs); @@ -392,7 +392,7 @@ static void __devinit jbusmc_construct_dimm_groups(struct jbusmc *p, } } -static int __devinit jbusmc_probe(struct platform_device *op) +static int jbusmc_probe(struct platform_device *op) { const struct linux_prom64_registers *mem_regs; struct device_node *mem_node; @@ -689,7 +689,7 @@ static void chmc_fetch_decode_regs(struct chmc *p) chmc_read_mcreg(p, CHMCTRL_DECODE4)); } -static int __devinit chmc_probe(struct platform_device *op) +static int chmc_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; unsigned long ver; @@ -763,7 +763,7 @@ out_free: goto out; } -static int __devinit us3mc_probe(struct platform_device *op) +static int us3mc_probe(struct platform_device *op) { if (mc_type == MC_TYPE_SAFARI) return chmc_probe(op); @@ -772,21 +772,21 @@ static int __devinit us3mc_probe(struct platform_device *op) return -ENODEV; } -static void __devexit chmc_destroy(struct platform_device *op, struct chmc *p) +static void chmc_destroy(struct platform_device *op, struct chmc *p) { list_del(&p->list); of_iounmap(&op->resource[0], p->regs, 0x48); kfree(p); } -static void __devexit jbusmc_destroy(struct platform_device *op, struct jbusmc *p) +static void jbusmc_destroy(struct platform_device *op, struct jbusmc *p) { mc_list_del(&p->list); of_iounmap(&op->resource[0], p->regs, JBUSMC_REGS_SIZE); kfree(p); } -static int __devexit us3mc_remove(struct platform_device *op) +static int us3mc_remove(struct platform_device *op) { void *p = dev_get_drvdata(&op->dev); @@ -814,7 +814,7 @@ static struct platform_driver us3mc_driver = { .of_match_table = us3mc_match, }, .probe = us3mc_probe, - .remove = __devexit_p(us3mc_remove), + .remove = us3mc_remove, }; static inline bool us3mc_platform(void) diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c index f09257c..75bb608 100644 --- a/arch/sparc/kernel/ds.c +++ b/arch/sparc/kernel/ds.c @@ -29,7 +29,7 @@ #define DRV_MODULE_VERSION "1.0" #define DRV_MODULE_RELDATE "Jul 11, 2007" -static char version[] __devinitdata = +static char version[] = DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); MODULE_DESCRIPTION("Sun LDOM domain services driver"); @@ -1146,8 +1146,7 @@ static void ds_event(void *arg, int event) spin_unlock_irqrestore(&ds_lock, flags); } -static int __devinit ds_probe(struct vio_dev *vdev, - const struct vio_device_id *id) +static int ds_probe(struct vio_dev *vdev, const struct vio_device_id *id) { static int ds_version_printed; struct ldc_channel_config ds_cfg = { diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c index 81d92fc..9fcc6b4 100644 --- a/arch/sparc/kernel/ldc.c +++ b/arch/sparc/kernel/ldc.c @@ -27,7 +27,7 @@ #define DRV_MODULE_VERSION "1.1" #define DRV_MODULE_RELDATE "July 22, 2008" -static char version[] __devinitdata = +static char version[] = DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; #define LDC_PACKET_SIZE 64 diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c index fc05211..852dc84 100644 --- a/arch/sparc/kernel/leon_pci.c +++ b/arch/sparc/kernel/leon_pci.c @@ -43,7 +43,7 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info) } } -void __devinit pcibios_fixup_bus(struct pci_bus *pbus) +void pcibios_fixup_bus(struct pci_bus *pbus) { struct pci_dev *dev; int i, has_io, has_mem; diff --git a/arch/sparc/kernel/leon_pci_grpci2.c b/arch/sparc/kernel/leon_pci_grpci2.c index b1bc388..fc43208 100644 --- a/arch/sparc/kernel/leon_pci_grpci2.c +++ b/arch/sparc/kernel/leon_pci_grpci2.c @@ -668,7 +668,7 @@ static irqreturn_t grpci2_err_interrupt(int irq, void *arg) return IRQ_HANDLED; } -static int __devinit grpci2_of_probe(struct platform_device *ofdev) +static int grpci2_of_probe(struct platform_device *ofdev) { struct grpci2_regs *regs; struct grpci2_priv *priv; diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 75b31bc..baf4366 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -356,7 +356,7 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, return dev; } -static void __devinit apb_calc_first_last(u8 map, u32 *first_p, u32 *last_p) +static void apb_calc_first_last(u8 map, u32 *first_p, u32 *last_p) { u32 idx, first, last; @@ -378,9 +378,9 @@ static void __devinit apb_calc_first_last(u8 map, u32 *first_p, u32 *last_p) /* Cook up fake bus resources for SUNW,simba PCI bridges which lack * a proper 'ranges' property. */ -static void __devinit apb_fake_ranges(struct pci_dev *dev, - struct pci_bus *bus, - struct pci_pbm_info *pbm) +static void apb_fake_ranges(struct pci_dev *dev, + struct pci_bus *bus, + struct pci_pbm_info *pbm) { struct pci_bus_region region; struct resource *res; @@ -404,15 +404,15 @@ static void __devinit apb_fake_ranges(struct pci_dev *dev, pcibios_bus_to_resource(dev, res, ®ion); } -static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_bus *bus); +static void pci_of_scan_bus(struct pci_pbm_info *pbm, + struct device_node *node, + struct pci_bus *bus); #define GET_64BIT(prop, i) ((((u64) (prop)[(i)]) << 32) | (prop)[(i)+1]) -static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_dev *dev) +static void of_scan_pci_bridge(struct pci_pbm_info *pbm, + struct device_node *node, + struct pci_dev *dev) { struct pci_bus *bus; const u32 *busrange, *ranges; @@ -503,9 +503,9 @@ after_ranges: pci_of_scan_bus(pbm, node, bus); } -static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_bus *bus) +static void pci_of_scan_bus(struct pci_pbm_info *pbm, + struct device_node *node, + struct pci_bus *bus) { struct device_node *child; const u32 *reg; @@ -564,7 +564,7 @@ show_pciobppath_attr(struct device * dev, struct device_attribute * attr, char * static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH, show_pciobppath_attr, NULL); -static void __devinit pci_bus_register_of_sysfs(struct pci_bus *bus) +static void pci_bus_register_of_sysfs(struct pci_bus *bus) { struct pci_dev *dev; struct pci_bus *child_bus; @@ -585,8 +585,8 @@ static void __devinit pci_bus_register_of_sysfs(struct pci_bus *bus) pci_bus_register_of_sysfs(child_bus); } -struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm, - struct device *parent) +struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm, + struct device *parent) { LIST_HEAD(resources); struct device_node *node = pbm->op->dev.of_node; @@ -618,7 +618,7 @@ struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm, return bus; } -void __devinit pcibios_fixup_bus(struct pci_bus *pbus) +void pcibios_fixup_bus(struct pci_bus *pbus) { } @@ -949,8 +949,7 @@ static int __init pcibios_init(void) subsys_initcall(pcibios_init); #ifdef CONFIG_SYSFS -static void __devinit pci_bus_slot_names(struct device_node *node, - struct pci_bus *bus) +static void pci_bus_slot_names(struct device_node *node, struct pci_bus *bus) { const struct pci_slot_names { u32 slot_mask; diff --git a/arch/sparc/kernel/pci_fire.c b/arch/sparc/kernel/pci_fire.c index 188f935..e60fc6a 100644 --- a/arch/sparc/kernel/pci_fire.c +++ b/arch/sparc/kernel/pci_fire.c @@ -408,8 +408,8 @@ static void pci_fire_hw_init(struct pci_pbm_info *pbm) upa_writeq(~(u64)0, pbm->pbm_regs + FIRE_PEC_IENAB); } -static int __devinit pci_fire_pbm_init(struct pci_pbm_info *pbm, - struct platform_device *op, u32 portid) +static int pci_fire_pbm_init(struct pci_pbm_info *pbm, + struct platform_device *op, u32 portid) { const struct linux_prom64_registers *regs; struct device_node *dp = op->dev.of_node; @@ -454,7 +454,7 @@ static int __devinit pci_fire_pbm_init(struct pci_pbm_info *pbm, return 0; } -static int __devinit fire_probe(struct platform_device *op) +static int fire_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; struct pci_pbm_info *pbm; diff --git a/arch/sparc/kernel/pci_psycho.c b/arch/sparc/kernel/pci_psycho.c index f4d29e1..c647634 100644 --- a/arch/sparc/kernel/pci_psycho.c +++ b/arch/sparc/kernel/pci_psycho.c @@ -366,8 +366,8 @@ static void pbm_config_busmastering(struct pci_pbm_info *pbm) pci_config_write8(addr, 64); } -static void __devinit psycho_scan_bus(struct pci_pbm_info *pbm, - struct device *parent) +static void psycho_scan_bus(struct pci_pbm_info *pbm, + struct device *parent) { pbm_config_busmastering(pbm); pbm->is_66mhz_capable = 0; @@ -483,15 +483,15 @@ static void psycho_pbm_strbuf_init(struct pci_pbm_info *pbm, #define PSYCHO_MEMSPACE_B 0x180000000UL #define PSYCHO_MEMSPACE_SIZE 0x07fffffffUL -static void __devinit psycho_pbm_init(struct pci_pbm_info *pbm, - struct platform_device *op, int is_pbm_a) +static void psycho_pbm_init(struct pci_pbm_info *pbm, + struct platform_device *op, int is_pbm_a) { psycho_pbm_init_common(pbm, op, "PSYCHO", PBM_CHIP_TYPE_PSYCHO); psycho_pbm_strbuf_init(pbm, is_pbm_a); psycho_scan_bus(pbm, &op->dev); } -static struct pci_pbm_info * __devinit psycho_find_sibling(u32 upa_portid) +static struct pci_pbm_info *psycho_find_sibling(u32 upa_portid) { struct pci_pbm_info *pbm; @@ -504,7 +504,7 @@ static struct pci_pbm_info * __devinit psycho_find_sibling(u32 upa_portid) #define PSYCHO_CONFIGSPACE 0x001000000UL -static int __devinit psycho_probe(struct platform_device *op) +static int psycho_probe(struct platform_device *op) { const struct linux_prom64_registers *pr_regs; struct device_node *dp = op->dev.of_node; diff --git a/arch/sparc/kernel/pci_sabre.c b/arch/sparc/kernel/pci_sabre.c index 3efaa46..6f00d27 100644 --- a/arch/sparc/kernel/pci_sabre.c +++ b/arch/sparc/kernel/pci_sabre.c @@ -403,8 +403,7 @@ static void apb_init(struct pci_bus *sabre_bus) } } -static void __devinit sabre_scan_bus(struct pci_pbm_info *pbm, - struct device *parent) +static void sabre_scan_bus(struct pci_pbm_info *pbm, struct device *parent) { static int once; @@ -443,8 +442,8 @@ static void __devinit sabre_scan_bus(struct pci_pbm_info *pbm, sabre_register_error_handlers(pbm); } -static void __devinit sabre_pbm_init(struct pci_pbm_info *pbm, - struct platform_device *op) +static void sabre_pbm_init(struct pci_pbm_info *pbm, + struct platform_device *op) { psycho_pbm_init_common(pbm, op, "SABRE", PBM_CHIP_TYPE_SABRE); pbm->pci_afsr = pbm->controller_regs + SABRE_PIOAFSR; @@ -454,7 +453,7 @@ static void __devinit sabre_pbm_init(struct pci_pbm_info *pbm, } static const struct of_device_id sabre_match[]; -static int __devinit sabre_probe(struct platform_device *op) +static int sabre_probe(struct platform_device *op) { const struct of_device_id *match; const struct linux_prom64_registers *pr_regs; diff --git a/arch/sparc/kernel/pci_schizo.c b/arch/sparc/kernel/pci_schizo.c index 13d4aa2..8f76f23 100644 --- a/arch/sparc/kernel/pci_schizo.c +++ b/arch/sparc/kernel/pci_schizo.c @@ -1064,8 +1064,7 @@ static void pbm_config_busmastering(struct pci_pbm_info *pbm) pci_config_write8(addr, 64); } -static void __devinit schizo_scan_bus(struct pci_pbm_info *pbm, - struct device *parent) +static void schizo_scan_bus(struct pci_pbm_info *pbm, struct device *parent) { pbm_config_busmastering(pbm); pbm->is_66mhz_capable = @@ -1307,9 +1306,9 @@ static void schizo_pbm_hw_init(struct pci_pbm_info *pbm) } } -static int __devinit schizo_pbm_init(struct pci_pbm_info *pbm, - struct platform_device *op, u32 portid, - int chip_type) +static int schizo_pbm_init(struct pci_pbm_info *pbm, + struct platform_device *op, u32 portid, + int chip_type) { const struct linux_prom64_registers *regs; struct device_node *dp = op->dev.of_node; @@ -1400,8 +1399,7 @@ static inline int portid_compare(u32 x, u32 y, int chip_type) return (x == y); } -static struct pci_pbm_info * __devinit schizo_find_sibling(u32 portid, - int chip_type) +static struct pci_pbm_info *schizo_find_sibling(u32 portid, int chip_type) { struct pci_pbm_info *pbm; @@ -1412,7 +1410,7 @@ static struct pci_pbm_info * __devinit schizo_find_sibling(u32 portid, return NULL; } -static int __devinit __schizo_init(struct platform_device *op, unsigned long chip_type) +static int __schizo_init(struct platform_device *op, unsigned long chip_type) { struct device_node *dp = op->dev.of_node; struct pci_pbm_info *pbm; @@ -1460,7 +1458,7 @@ out_err: } static const struct of_device_id schizo_match[]; -static int __devinit schizo_probe(struct platform_device *op) +static int schizo_probe(struct platform_device *op) { const struct of_device_id *match; diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c index 051b69c..d07f6b2 100644 --- a/arch/sparc/kernel/pci_sun4v.c +++ b/arch/sparc/kernel/pci_sun4v.c @@ -536,8 +536,7 @@ static struct dma_map_ops sun4v_dma_ops = { .unmap_sg = dma_4v_unmap_sg, }; -static void __devinit pci_sun4v_scan_bus(struct pci_pbm_info *pbm, - struct device *parent) +static void pci_sun4v_scan_bus(struct pci_pbm_info *pbm, struct device *parent) { struct property *prop; struct device_node *dp; @@ -550,8 +549,8 @@ static void __devinit pci_sun4v_scan_bus(struct pci_pbm_info *pbm, /* XXX register error interrupt handlers XXX */ } -static unsigned long __devinit probe_existing_entries(struct pci_pbm_info *pbm, - struct iommu *iommu) +static unsigned long probe_existing_entries(struct pci_pbm_info *pbm, + struct iommu *iommu) { struct iommu_arena *arena = &iommu->arena; unsigned long i, cnt = 0; @@ -578,7 +577,7 @@ static unsigned long __devinit probe_existing_entries(struct pci_pbm_info *pbm, return cnt; } -static int __devinit pci_sun4v_iommu_init(struct pci_pbm_info *pbm) +static int pci_sun4v_iommu_init(struct pci_pbm_info *pbm) { static const u32 vdma_default[] = { 0x80000000, 0x80000000 }; struct iommu *iommu = pbm->iommu; @@ -879,8 +878,8 @@ static void pci_sun4v_msi_init(struct pci_pbm_info *pbm) } #endif /* !(CONFIG_PCI_MSI) */ -static int __devinit pci_sun4v_pbm_init(struct pci_pbm_info *pbm, - struct platform_device *op, u32 devhandle) +static int pci_sun4v_pbm_init(struct pci_pbm_info *pbm, + struct platform_device *op, u32 devhandle) { struct device_node *dp = op->dev.of_node; int err; @@ -919,7 +918,7 @@ static int __devinit pci_sun4v_pbm_init(struct pci_pbm_info *pbm, return 0; } -static int __devinit pci_sun4v_probe(struct platform_device *op) +static int pci_sun4v_probe(struct platform_device *op) { const struct linux_prom64_registers *regs; static int hvapi_negotiated = 0; diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c index 521fdf1..09f4fdd 100644 --- a/arch/sparc/kernel/pcic.c +++ b/arch/sparc/kernel/pcic.c @@ -439,8 +439,7 @@ int pcic_present(void) return pcic0_up; } -static int __devinit pdev_to_pnode(struct linux_pbm_info *pbm, - struct pci_dev *pdev) +static int pdev_to_pnode(struct linux_pbm_info *pbm, struct pci_dev *pdev) { struct linux_prom_pci_registers regs[PROMREG_MAX]; int err; @@ -595,7 +594,7 @@ pcic_fill_irq(struct linux_pcic *pcic, struct pci_dev *dev, int node) /* * Normally called from {do_}pci_scan_bus... */ -void __devinit pcibios_fixup_bus(struct pci_bus *bus) +void pcibios_fixup_bus(struct pci_bus *bus) { struct pci_dev *dev; int i, has_io, has_mem; diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c index 0e32022..dcbb62f 100644 --- a/arch/sparc/kernel/pmc.c +++ b/arch/sparc/kernel/pmc.c @@ -52,7 +52,7 @@ static void pmc_swift_idle(void) #endif } -static int __devinit pmc_probe(struct platform_device *op) +static int pmc_probe(struct platform_device *op) { regs = of_ioremap(&op->resource[0], 0, resource_size(&op->resource[0]), PMC_OBPNAME); diff --git a/arch/sparc/kernel/power.c b/arch/sparc/kernel/power.c index 0d39075..4cb23c4 100644 --- a/arch/sparc/kernel/power.c +++ b/arch/sparc/kernel/power.c @@ -23,7 +23,7 @@ static irqreturn_t power_handler(int irq, void *dev_id) return IRQ_HANDLED; } -static int __devinit has_button_interrupt(unsigned int irq, struct device_node *dp) +static int has_button_interrupt(unsigned int irq, struct device_node *dp) { if (irq == 0xffffffff) return 0; @@ -33,7 +33,7 @@ static int __devinit has_button_interrupt(unsigned int irq, struct device_node * return 1; } -static int __devinit power_probe(struct platform_device *op) +static int power_probe(struct platform_device *op) { struct resource *res = &op->resource[0]; unsigned int irq = op->archdata.irqs[0]; diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index d94b878..537eb66 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -1180,7 +1180,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) { } -void __devinit smp_prepare_boot_cpu(void) +void smp_prepare_boot_cpu(void) { } @@ -1194,7 +1194,7 @@ void __init smp_setup_processor_id(void) xcall_deliver_impl = hypervisor_xcall_deliver; } -void __devinit smp_fill_in_sib_core_maps(void) +void smp_fill_in_sib_core_maps(void) { unsigned int i; diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c index 9536415..c4c27b0 100644 --- a/arch/sparc/kernel/time_32.c +++ b/arch/sparc/kernel/time_32.c @@ -278,7 +278,7 @@ static struct platform_device m48t59_rtc = { }, }; -static int __devinit clock_probe(struct platform_device *op) +static int clock_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; const char *model = of_get_property(dp, "model", NULL); diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c index e861072..c3d82b5 100644 --- a/arch/sparc/kernel/time_64.c +++ b/arch/sparc/kernel/time_64.c @@ -419,7 +419,7 @@ static struct platform_device rtc_cmos_device = { .num_resources = 1, }; -static int __devinit rtc_probe(struct platform_device *op) +static int rtc_probe(struct platform_device *op) { struct resource *r; @@ -477,7 +477,7 @@ static struct platform_device rtc_bq4802_device = { .num_resources = 1, }; -static int __devinit bq4802_probe(struct platform_device *op) +static int bq4802_probe(struct platform_device *op) { printk(KERN_INFO "%s: BQ4802 regs at 0x%llx\n", @@ -534,7 +534,7 @@ static struct platform_device m48t59_rtc = { }, }; -static int __devinit mostek_probe(struct platform_device *op) +static int mostek_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; @@ -746,7 +746,7 @@ void __irq_entry timer_interrupt(int irq, struct pt_regs *regs) set_irq_regs(old_regs); } -void __devinit setup_sparc64_timer(void) +void setup_sparc64_timer(void) { struct clock_event_device *sevt; unsigned long pstate; @@ -844,7 +844,7 @@ unsigned long long sched_clock(void) >> SPARC64_NSEC_PER_CYC_SHIFT; } -int __devinit read_current_timer(unsigned long *timer_val) +int read_current_timer(unsigned long *timer_val) { *timer_val = tick_ops->get_tick(); return 0; diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 85be1ca..c3b7242 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -87,8 +87,8 @@ static unsigned long cpu_pgsz_mask; #define MAX_BANKS 32 -static struct linux_prom64_registers pavail[MAX_BANKS] __devinitdata; -static int pavail_ents __devinitdata; +static struct linux_prom64_registers pavail[MAX_BANKS]; +static int pavail_ents; static int cmp_p64(const void *a, const void *b) { @@ -1931,7 +1931,7 @@ void __init paging_init(void) printk("Booting Linux...\n"); } -int __devinit page_in_phys_avail(unsigned long paddr) +int page_in_phys_avail(unsigned long paddr) { int i; -- cgit v0.10.2 From d0b9cec3e27d0e9fda2fbf6aaacece68c99b1104 Mon Sep 17 00:00:00 2001 From: Sathya Perla Date: Fri, 11 Jan 2013 22:47:02 +0000 Subject: be2net: fix unconditionally returning IRQ_HANDLED in INTx commit e49cc34f introduced an unconditional IRQ_HANDLED return in be_intx() to workaround Lancer and BE2 HW issues. This is bad as it prevents the kernel from detecting interrupt storms due to broken HW. The BE2/Lancer HW issues are: 1) In Lancer, there is no means for the driver to detect if the interrupt belonged to device, other than counting and notifying events. 2) In Lancer de-asserting INTx takes a while, causing the INTx irq handler to be called multiple times till the de-assert happens. 3) In BE2, we see an occasional interrupt even when EQs are unarmed. Issue (1) can cause the notified events to be orphaned, if NAPI was already running. This patch fixes this issue by scheduling NAPI only if it is not scheduled already. Doing this also takes care of possible events_get() race that may be caused due to issue (2) and (3). Also, IRQ_HANDLED is returned only the first time zero events are detected. (Thanks Ben H. for the feedback and suggestions.) Signed-off-by: Sathya Perla Signed-off-by: David S. Miller diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h index 3bc1912..4eba17b 100644 --- a/drivers/net/ethernet/emulex/benet/be.h +++ b/drivers/net/ethernet/emulex/benet/be.h @@ -190,6 +190,7 @@ struct be_eq_obj { u8 idx; /* array index */ u16 tx_budget; + u16 spurious_intr; struct napi_struct napi; struct be_adapter *adapter; } ____cacheline_aligned_in_smp; diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 9dca22b..5c99570 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -2026,19 +2026,30 @@ static irqreturn_t be_intx(int irq, void *dev) struct be_adapter *adapter = eqo->adapter; int num_evts = 0; - /* On Lancer, clear-intr bit of the EQ DB does not work. - * INTx is de-asserted only on notifying num evts. + /* IRQ is not expected when NAPI is scheduled as the EQ + * will not be armed. + * But, this can happen on Lancer INTx where it takes + * a while to de-assert INTx or in BE2 where occasionaly + * an interrupt may be raised even when EQ is unarmed. + * If NAPI is already scheduled, then counting & notifying + * events will orphan them. */ - if (lancer_chip(adapter)) + if (napi_schedule_prep(&eqo->napi)) { num_evts = events_get(eqo); + __napi_schedule(&eqo->napi); + if (num_evts) + eqo->spurious_intr = 0; + } + be_eq_notify(adapter, eqo->q.id, false, true, num_evts); - /* The EQ-notify may not de-assert INTx rightaway, causing - * the ISR to be invoked again. So, return HANDLED even when - * num_evts is zero. + /* Return IRQ_HANDLED only for the the first spurious intr + * after a valid intr to stop the kernel from branding + * this irq as a bad one! */ - be_eq_notify(adapter, eqo->q.id, false, true, num_evts); - napi_schedule(&eqo->napi); - return IRQ_HANDLED; + if (num_evts || eqo->spurious_intr++ == 0) + return IRQ_HANDLED; + else + return IRQ_NONE; } static irqreturn_t be_msix(int irq, void *dev) -- cgit v0.10.2 From 4459146deb9eeabb0adf10d829bd8019d16bb0f4 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Sun, 13 Jan 2013 17:08:01 +1000 Subject: drm/nouveau/devinit: ensure legacy vga control is enabled during post Fixes ACPI backlight control after suspend on some systems. Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c index 2917d55..690ed43 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c @@ -1534,7 +1534,6 @@ init_io(struct nvbios_init *init) mdelay(10); init_wr32(init, 0x614100, 0x10000018); init_wr32(init, 0x614900, 0x10000018); - return; } value = init_rdport(init, port) & mask; -- cgit v0.10.2 From 1a1841d300a1b6cac35b0761755364d6d3e10b2e Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 10 Dec 2012 18:53:43 +1000 Subject: drm/nouveau: do not forcibly power on lvds panels This fix was put in place to fix a bug where the eDP panel on certain laptops fails to respond over the aux channel after suspend. It appears that on some systems (Dell M6600, with LVDS panel) there's a very bad interaction with the eDP init table that causes the SOR to get very confused and not drive the panel correctly, leading to bleed. A DPMS off/on cycle is enough to bring it back, but, this will avoid the problem by not touching the panel GPIOs at times we're not meant to. Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index ac340ba..e620ba8 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -127,12 +127,26 @@ nouveau_connector_ddc_detect(struct drm_connector *connector, struct nouveau_encoder **pnv_encoder) { struct drm_device *dev = connector->dev; + struct nouveau_connector *nv_connector = nouveau_connector(connector); struct nouveau_drm *drm = nouveau_drm(dev); + struct nouveau_gpio *gpio = nouveau_gpio(drm->device); struct nouveau_i2c *i2c = nouveau_i2c(drm->device); - int i; + struct nouveau_i2c_port *port = NULL; + int i, panel = -ENODEV; + + /* eDP panels need powering on by us (if the VBIOS doesn't default it + * to on) before doing any AUX channel transactions. LVDS panel power + * is handled by the SOR itself, and not required for LVDS DDC. + */ + if (nv_connector->type == DCB_CONNECTOR_eDP) { + panel = gpio->get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff); + if (panel == 0) { + gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1); + msleep(300); + } + } for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { - struct nouveau_i2c_port *port = NULL; struct nouveau_encoder *nv_encoder; struct drm_mode_object *obj; int id; @@ -150,11 +164,19 @@ nouveau_connector_ddc_detect(struct drm_connector *connector, port = i2c->find(i2c, nv_encoder->dcb->i2c_index); if (port && nv_probe_i2c(port, 0x50)) { *pnv_encoder = nv_encoder; - return port; + break; } + + port = NULL; } - return NULL; + /* eDP panel not detected, restore panel power GPIO to previous + * state to avoid confusing the SOR for other output types. + */ + if (!port && panel == 0) + gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, panel); + + return port; } static struct nouveau_encoder * diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index e4188f2..508b00a 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -225,15 +225,6 @@ nouveau_display_init(struct drm_device *dev) if (ret) return ret; - /* power on internal panel if it's not already. the init tables of - * some vbios default this to off for some reason, causing the - * panel to not work after resume - */ - if (gpio && gpio->get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff) == 0) { - gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1); - msleep(300); - } - /* enable polling for external displays */ drm_kms_helper_poll_enable(dev); -- cgit v0.10.2 From 4c4101d29fb6c63f78791d02c437702b11e1d4f0 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sun, 2 Dec 2012 12:56:22 +0100 Subject: drm/nouveau: add locking around instobj list operations Fixes memory corruptions, oopses, etc. when multiple gpuobjs are simultaneously created or destroyed. Signed-off-by: Marcin Slusarz Signed-off-by: Ben Skeggs Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/nouveau/core/subdev/instmem/base.c b/drivers/gpu/drm/nouveau/core/subdev/instmem/base.c index 1188227..6565f3d 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/instmem/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/instmem/base.c @@ -40,15 +40,21 @@ nouveau_instobj_create_(struct nouveau_object *parent, if (ret) return ret; + mutex_lock(&imem->base.mutex); list_add(&iobj->head, &imem->list); + mutex_unlock(&imem->base.mutex); return 0; } void nouveau_instobj_destroy(struct nouveau_instobj *iobj) { - if (iobj->head.prev) - list_del(&iobj->head); + struct nouveau_subdev *subdev = nv_subdev(iobj->base.engine); + + mutex_lock(&subdev->mutex); + list_del(&iobj->head); + mutex_unlock(&subdev->mutex); + return nouveau_object_destroy(&iobj->base); } @@ -88,6 +94,8 @@ nouveau_instmem_init(struct nouveau_instmem *imem) if (ret) return ret; + mutex_lock(&imem->base.mutex); + list_for_each_entry(iobj, &imem->list, head) { if (iobj->suspend) { for (i = 0; i < iobj->size; i += 4) @@ -97,6 +105,8 @@ nouveau_instmem_init(struct nouveau_instmem *imem) } } + mutex_unlock(&imem->base.mutex); + return 0; } @@ -104,17 +114,26 @@ int nouveau_instmem_fini(struct nouveau_instmem *imem, bool suspend) { struct nouveau_instobj *iobj; - int i; + int i, ret = 0; if (suspend) { + mutex_lock(&imem->base.mutex); + list_for_each_entry(iobj, &imem->list, head) { iobj->suspend = vmalloc(iobj->size); - if (iobj->suspend) { - for (i = 0; i < iobj->size; i += 4) - iobj->suspend[i / 4] = nv_ro32(iobj, i); - } else - return -ENOMEM; + if (!iobj->suspend) { + ret = -ENOMEM; + break; + } + + for (i = 0; i < iobj->size; i += 4) + iobj->suspend[i / 4] = nv_ro32(iobj, i); } + + mutex_unlock(&imem->base.mutex); + + if (ret) + return ret; } return nouveau_subdev_fini(&imem->base, suspend); -- cgit v0.10.2 From cfd376b6bfccf33782a0748a9c70f7f752f8b869 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Mon, 10 Dec 2012 21:30:51 +0100 Subject: drm/nouveau/vm: fix memory corruption when pgt allocation fails If we return freed vm, nouveau_drm_open will happily call nouveau_cli_destroy, which will try to free it again. Reported-by: Peter Hurley Signed-off-by: Marcin Slusarz Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/base.c b/drivers/gpu/drm/nouveau/core/subdev/vm/base.c index 082c11b..77c67fc 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/vm/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/vm/base.c @@ -352,7 +352,7 @@ nouveau_vm_create(struct nouveau_vmmgr *vmm, u64 offset, u64 length, u64 mm_length = (offset + length) - mm_offset; int ret; - vm = *pvm = kzalloc(sizeof(*vm), GFP_KERNEL); + vm = kzalloc(sizeof(*vm), GFP_KERNEL); if (!vm) return -ENOMEM; @@ -376,6 +376,8 @@ nouveau_vm_create(struct nouveau_vmmgr *vmm, u64 offset, u64 length, return ret; } + *pvm = vm; + return 0; } -- cgit v0.10.2 From 82c805abb20946dcb343cd607327e4d720bf6b28 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Mon, 10 Dec 2012 21:57:20 +0100 Subject: drm/nouveau: don't return freed object from nouveau_handle_create Signed-off-by: Marcin Slusarz Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/core/handle.c b/drivers/gpu/drm/nouveau/core/core/handle.c index b8d2cbf..264c2b3 100644 --- a/drivers/gpu/drm/nouveau/core/core/handle.c +++ b/drivers/gpu/drm/nouveau/core/core/handle.c @@ -109,7 +109,7 @@ nouveau_handle_create(struct nouveau_object *parent, u32 _parent, u32 _handle, while (!nv_iclass(namedb, NV_NAMEDB_CLASS)) namedb = namedb->parent; - handle = *phandle = kzalloc(sizeof(*handle), GFP_KERNEL); + handle = kzalloc(sizeof(*handle), GFP_KERNEL); if (!handle) return -ENOMEM; @@ -146,6 +146,9 @@ nouveau_handle_create(struct nouveau_object *parent, u32 _parent, u32 _handle, } hprintk(handle, TRACE, "created\n"); + + *phandle = handle; + return 0; } -- cgit v0.10.2 From dd5700ea98ad0b375a72525ce7d7edddf15b2693 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Mon, 10 Dec 2012 21:59:52 +0100 Subject: drm/nouveau: fix nouveau_client allocation failure path Depending on the point of failure, freed object would be returned or memory leak would happen. Signed-off-by: Marcin Slusarz Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/core/client.c b/drivers/gpu/drm/nouveau/core/core/client.c index c617f04..8bbb58f 100644 --- a/drivers/gpu/drm/nouveau/core/core/client.c +++ b/drivers/gpu/drm/nouveau/core/core/client.c @@ -66,10 +66,8 @@ nouveau_client_create_(const char *name, u64 devname, const char *cfg, ret = nouveau_handle_create(nv_object(client), ~0, ~0, nv_object(client), &client->root); - if (ret) { - nouveau_namedb_destroy(&client->base); + if (ret) return ret; - } /* prevent init/fini being called, os in in charge of this */ atomic_set(&nv_object(client)->usecount, 2); diff --git a/drivers/gpu/drm/nouveau/core/include/core/client.h b/drivers/gpu/drm/nouveau/core/include/core/client.h index 0193532..63acc03 100644 --- a/drivers/gpu/drm/nouveau/core/include/core/client.h +++ b/drivers/gpu/drm/nouveau/core/include/core/client.h @@ -36,6 +36,9 @@ nouveau_client(void *obj) int nouveau_client_create_(const char *name, u64 device, const char *cfg, const char *dbg, int, void **); +#define nouveau_client_destroy(p) \ + nouveau_namedb_destroy(&(p)->base) + int nouveau_client_init(struct nouveau_client *); int nouveau_client_fini(struct nouveau_client *, bool suspend); diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 01c403d..efcfefa 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -84,11 +84,16 @@ nouveau_cli_create(struct pci_dev *pdev, const char *name, struct nouveau_cli *cli; int ret; + *pcli = NULL; ret = nouveau_client_create_(name, nouveau_name(pdev), nouveau_config, nouveau_debug, size, pcli); cli = *pcli; - if (ret) + if (ret) { + if (cli) + nouveau_client_destroy(&cli->base); + *pcli = NULL; return ret; + } mutex_init(&cli->mutex); return 0; -- cgit v0.10.2 From 92441b2263866c27ef48137be5aa6c8c692652fc Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Tue, 18 Dec 2012 20:30:47 +0100 Subject: drm/nouveau: fix blank LVDS screen regression on pre-nv50 cards Commit 2a44e499 ("drm/nouveau/disp: introduce proper init/fini, separate from create/destroy") started to call display init routines on pre-nv50 hardware on module load. But LVDS init code sets driver state in a way which prevents modesetting code from operating properly. nv04_display_init calls nv04_dfp_restore, which sets encoder->last_dpms to NV_DPMS_CLEARED. drm_crtc_helper_set_mode nv04_dfp_prepare nv04_lvds_dpms(DRM_MODE_DPMS_OFF) nv04_lvds_dpms checks last_dpms mode (which is NV_DPMS_CLEARED) and wrongly assumes it's a "powersaving mode", the new one (DRM_MODE_DPMS_OFF) is too, so it skips calling some crucial lvds scripts. Reported-by: Chris Paulson-Ellis Signed-off-by: Marcin Slusarz Signed-off-by: Ben Skeggs Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/nouveau/nv04_dfp.c b/drivers/gpu/drm/nouveau/nv04_dfp.c index 184cdf8..39ffc07 100644 --- a/drivers/gpu/drm/nouveau/nv04_dfp.c +++ b/drivers/gpu/drm/nouveau/nv04_dfp.c @@ -505,7 +505,7 @@ static void nv04_dfp_update_backlight(struct drm_encoder *encoder, int mode) static inline bool is_powersaving_dpms(int mode) { - return (mode != DRM_MODE_DPMS_ON); + return mode != DRM_MODE_DPMS_ON && mode != NV_DPMS_CLEARED; } static void nv04_lvds_dpms(struct drm_encoder *encoder, int mode) -- cgit v0.10.2 From f20ebd034eab43fd38c58b11c5bb5fb125e5f7d7 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Tue, 25 Dec 2012 18:13:22 +0100 Subject: drm/nv17-50: restore fence buffer on resume Since commit 5e120f6e4b3f35b741c5445dfc755f50128c3c44 "drm/nouveau/fence: convert to exec engine, and improve channel sync" nouveau fence sync implementation for nv17-50 and nvc0+ started to rely on state of fence buffer left by previous sync operation. But as pinned bo's (where fence state is stored) are not saved+restored across suspend/resume, we need to do it manually. nvc0+ was fixed by commit d6ba6d215a538a58f0f0026f0961b0b9125e8042 "drm/nvc0/fence: restore pre-suspend fence buffer context on resume". Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=50121 Signed-off-by: Marcin Slusarz Signed-off-by: Ben Skeggs Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.h b/drivers/gpu/drm/nouveau/nouveau_fence.h index bedafd1..cdb83ac 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fence.h +++ b/drivers/gpu/drm/nouveau/nouveau_fence.h @@ -60,6 +60,7 @@ u32 nv10_fence_read(struct nouveau_channel *); void nv10_fence_context_del(struct nouveau_channel *); void nv10_fence_destroy(struct nouveau_drm *); int nv10_fence_create(struct nouveau_drm *); +void nv17_fence_resume(struct nouveau_drm *drm); int nv50_fence_create(struct nouveau_drm *); int nv84_fence_create(struct nouveau_drm *); diff --git a/drivers/gpu/drm/nouveau/nv10_fence.c b/drivers/gpu/drm/nouveau/nv10_fence.c index 7ae7f97..03017f2 100644 --- a/drivers/gpu/drm/nouveau/nv10_fence.c +++ b/drivers/gpu/drm/nouveau/nv10_fence.c @@ -162,6 +162,13 @@ nv10_fence_destroy(struct nouveau_drm *drm) kfree(priv); } +void nv17_fence_resume(struct nouveau_drm *drm) +{ + struct nv10_fence_priv *priv = drm->fence; + + nouveau_bo_wr32(priv->bo, 0, priv->sequence); +} + int nv10_fence_create(struct nouveau_drm *drm) { @@ -197,6 +204,7 @@ nv10_fence_create(struct nouveau_drm *drm) if (ret == 0) { nouveau_bo_wr32(priv->bo, 0x000, 0x00000000); priv->base.sync = nv17_fence_sync; + priv->base.resume = nv17_fence_resume; } } diff --git a/drivers/gpu/drm/nouveau/nv50_fence.c b/drivers/gpu/drm/nouveau/nv50_fence.c index c20f272..d889f3a 100644 --- a/drivers/gpu/drm/nouveau/nv50_fence.c +++ b/drivers/gpu/drm/nouveau/nv50_fence.c @@ -122,6 +122,7 @@ nv50_fence_create(struct nouveau_drm *drm) if (ret == 0) { nouveau_bo_wr32(priv->bo, 0x000, 0x00000000); priv->base.sync = nv17_fence_sync; + priv->base.resume = nv17_fence_resume; } if (ret) -- cgit v0.10.2 From c684cef795cb5356ae7f6a7ad613946eef14265f Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Thu, 3 Jan 2013 19:38:45 +0100 Subject: drm/nv50/disp: fix selection of bios script for analog outputs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Analog output number was overwritten by value from digital output path. Fix it. Fixes resume from s2ram: https://bugs.freedesktop.org/show_bug.cgi?id=58729 (as stumbled on by J Binder, Pontus Fuchs and me) Fixes blank screen on module load (reported by Sune Mølgaard). Fixes regression from commit 186ecad21c854385823a430b1402053ae7fd59dc ("drm/nv50/disp: move remaining interrupt handling into core"). Reported-by: J Binder Reported-by: Pontus Fuchs Reported-by: Sune Mølgaard Signed-off-by: Marcin Slusarz Tested-by: Marcin Slusarz Tested-by: Sune Mølgaard Signed-off-by: Ben Skeggs diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c index 0f09af1..ca1a7d7 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nv50.c @@ -851,20 +851,23 @@ exec_script(struct nv50_disp_priv *priv, int head, int id) for (i = 0; !(ctrl & (1 << head)) && i < 3; i++) ctrl = nv_rd32(priv, 0x610b5c + (i * 8)); - if (nv_device(priv)->chipset < 0x90 || - nv_device(priv)->chipset == 0x92 || - nv_device(priv)->chipset == 0xa0) { - for (i = 0; !(ctrl & (1 << head)) && i < 2; i++) - ctrl = nv_rd32(priv, 0x610b74 + (i * 8)); - i += 3; - } else { - for (i = 0; !(ctrl & (1 << head)) && i < 4; i++) - ctrl = nv_rd32(priv, 0x610798 + (i * 8)); - i += 3; + if (!(ctrl & (1 << head))) { + if (nv_device(priv)->chipset < 0x90 || + nv_device(priv)->chipset == 0x92 || + nv_device(priv)->chipset == 0xa0) { + for (i = 0; !(ctrl & (1 << head)) && i < 2; i++) + ctrl = nv_rd32(priv, 0x610b74 + (i * 8)); + i += 4; + } else { + for (i = 0; !(ctrl & (1 << head)) && i < 4; i++) + ctrl = nv_rd32(priv, 0x610798 + (i * 8)); + i += 4; + } } if (!(ctrl & (1 << head))) return false; + i--; data = exec_lookup(priv, head, i, ctrl, &dcb, &ver, &hdr, &cnt, &len, &info); if (data) { @@ -898,20 +901,23 @@ exec_clkcmp(struct nv50_disp_priv *priv, int head, int id, u32 pclk, for (i = 0; !(ctrl & (1 << head)) && i < 3; i++) ctrl = nv_rd32(priv, 0x610b58 + (i * 8)); - if (nv_device(priv)->chipset < 0x90 || - nv_device(priv)->chipset == 0x92 || - nv_device(priv)->chipset == 0xa0) { - for (i = 0; !(ctrl & (1 << head)) && i < 2; i++) - ctrl = nv_rd32(priv, 0x610b70 + (i * 8)); - i += 3; - } else { - for (i = 0; !(ctrl & (1 << head)) && i < 4; i++) - ctrl = nv_rd32(priv, 0x610794 + (i * 8)); - i += 3; + if (!(ctrl & (1 << head))) { + if (nv_device(priv)->chipset < 0x90 || + nv_device(priv)->chipset == 0x92 || + nv_device(priv)->chipset == 0xa0) { + for (i = 0; !(ctrl & (1 << head)) && i < 2; i++) + ctrl = nv_rd32(priv, 0x610b70 + (i * 8)); + i += 4; + } else { + for (i = 0; !(ctrl & (1 << head)) && i < 4; i++) + ctrl = nv_rd32(priv, 0x610794 + (i * 8)); + i += 4; + } } if (!(ctrl & (1 << head))) return 0x0000; + i--; data = exec_lookup(priv, head, i, ctrl, outp, &ver, &hdr, &cnt, &len, &info1); if (!data) -- cgit v0.10.2 From d19528a9e4f220519c2cb3f56ef0c84ead3ee440 Mon Sep 17 00:00:00 2001 From: Aleksi Torhamo Date: Fri, 4 Jan 2013 18:39:13 +0200 Subject: drm/nouveau/clock: fix support for more than 2 monitors on nve0 Fixes regression introduced in commit 70790f4f "drm/nouveau/clock: pull in the implementation from all over the place" When code was moved from nv50_crtc_set_clock to nvc0_clock_pll_set, the PLLs it is used for got limited to only the first two VPLLs. nv50_crtc_set_clock was only called to change VPLLs, so it didn't limit what it was used for in any way. Since nvc0_clock_pll_set is used for all PLLs, it has to specify which PLLs the code is used for, and only listed the first two VPLLs. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=58735 This patch is a -stable candidate for 3.7. Signed-off-by: Aleksi Torhamo Tested-by: Aleksi Torhamo Tested-by: Sean Santos Signed-off-by: Ben Skeggs Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/pll.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/pll.h index c345097..b2f3d4d 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/bios/pll.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/bios/pll.h @@ -38,6 +38,8 @@ enum nvbios_pll_type { PLL_UNK42 = 0x42, PLL_VPLL0 = 0x80, PLL_VPLL1 = 0x81, + PLL_VPLL2 = 0x82, + PLL_VPLL3 = 0x83, PLL_MAX = 0xff }; diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c index f6962c9..7c96262 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c @@ -52,6 +52,8 @@ nvc0_clock_pll_set(struct nouveau_clock *clk, u32 type, u32 freq) switch (info.type) { case PLL_VPLL0: case PLL_VPLL1: + case PLL_VPLL2: + case PLL_VPLL3: nv_mask(priv, info.reg + 0x0c, 0x00000000, 0x00000100); nv_wr32(priv, info.reg + 0x04, (P << 16) | (N << 8) | M); nv_wr32(priv, info.reg + 0x10, fN << 16); -- cgit v0.10.2 From 43f789792e2c7ea2bff37195e4c4b4239e9e02b7 Mon Sep 17 00:00:00 2001 From: Aleksi Torhamo Date: Wed, 9 Jan 2013 20:08:48 +0200 Subject: drm/nvc0/fb: fix crash when different mutex is used to protect same list Fixes regression introduced in commit 861d2107 "drm/nouveau/fb: merge fb/vram and port to subdev interfaces" nv50_fb_vram_{new,del} functions were changed to use nouveau_subdev->mutex instead of the old nouveau_mm->mutex. nvc0_fb_vram_new still uses the nouveau_mm->mutex, but nvc0 doesn't have its own fb_vram_del function, using nv50_fb_vram_del instead. Because of this, on nvc0 a different mutex ends up being used to protect additions and deletions to the same list. This patch is a -stable candidate for 3.7. Signed-off-by: Aleksi Torhamo Reported-by: Roy Spliet Tested-by: Roy Spliet Signed-off-by: Ben Skeggs Cc: stable@vger.kernel.org diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c index 306bdf1..7606ed1 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c @@ -145,14 +145,14 @@ nvc0_fb_vram_new(struct nouveau_fb *pfb, u64 size, u32 align, u32 ncmin, mem->memtype = type; mem->size = size; - mutex_lock(&mm->mutex); + mutex_lock(&pfb->base.mutex); do { if (back) ret = nouveau_mm_tail(mm, 1, size, ncmin, align, &r); else ret = nouveau_mm_head(mm, 1, size, ncmin, align, &r); if (ret) { - mutex_unlock(&mm->mutex); + mutex_unlock(&pfb->base.mutex); pfb->ram.put(pfb, &mem); return ret; } @@ -160,7 +160,7 @@ nvc0_fb_vram_new(struct nouveau_fb *pfb, u64 size, u32 align, u32 ncmin, list_add_tail(&r->rl_entry, &mem->regions); size -= r->length; } while (size); - mutex_unlock(&mm->mutex); + mutex_unlock(&pfb->base.mutex); r = list_first_entry(&mem->regions, struct nouveau_mm_node, rl_entry); mem->offset = (u64)r->offset << 12; -- cgit v0.10.2 From 8cf65dc386f3634a43312f436cc7a935476a40c4 Mon Sep 17 00:00:00 2001 From: Tomasz Mloduchowski Date: Sun, 13 Jan 2013 23:32:53 +0100 Subject: usb: ftdi_sio: Crucible Technologies COMET Caller ID - pid added Simple fix to add support for Crucible Technologies COMET Caller ID USB decoder - a device containing FTDI USB/Serial converter chip, handling 1200bps CallerID messages decoded from the phone line - adding correct USB PID is sufficient. Tested to apply cleanly and work flawlessly against 3.6.9, 3.7.0-rc8 and 3.8.0-rc3 on both amd64 and x86 arches. Signed-off-by: Tomasz Mloduchowski Cc: stable Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 0a373b3..ba68835 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -875,6 +875,8 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_DISTORTEC_JTAG_LOCK_PICK_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(FTDI_VID, FTDI_LUMEL_PD12_PID) }, + /* Crucible Devices */ + { USB_DEVICE(FTDI_VID, FTDI_CT_COMET_PID) }, { }, /* Optional parameter entry */ { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 049b6e7..fa5d560 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -1259,3 +1259,9 @@ * ATI command output: Cinterion MC55i */ #define FTDI_CINTERION_MC55I_PID 0xA951 + +/* + * Product: Comet Caller ID decoder + * Manufacturer: Crucible Technologies + */ +#define FTDI_CT_COMET_PID 0x8e08 -- cgit v0.10.2 From c930812fe5ebe725760422c9c351d1f6fde1502d Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 11 Jan 2013 12:08:56 +0100 Subject: udldrmfb: Fix EDID not working with monitors with EDID extension blocks udldrmfb only reads the main EDID block, and if that advertises extensions the drm_edid code expects them to be present, and starts reading beyond the buffer udldrmfb passes it. Although it may be possible to read more EDID info with the udl we simpy don't know how, and even if trial and error gets it working on one device, that is no guarantee it will work on other revisions. So this patch does a simple fix in the form of patching the EDID info to report 0 extension blocks, this fixes udldrmfb only doing 1024x768 on monitors with EDID extension blocks. Signed-off-by: Hans de Goede Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c index 512f44a..3e6208f 100644 --- a/drivers/gpu/drm/udl/udl_connector.c +++ b/drivers/gpu/drm/udl/udl_connector.c @@ -57,6 +57,14 @@ static int udl_get_modes(struct drm_connector *connector) edid = (struct edid *)udl_get_edid(udl); + /* + * We only read the main block, but if the monitor reports extension + * blocks then the drm edid code expects them to be present, so patch + * the extension count to 0. + */ + edid->checksum += edid->extensions; + edid->extensions = 0; + drm_mode_connector_update_edid_property(connector, edid); ret = drm_add_edid_modes(connector, edid); kfree(edid); -- cgit v0.10.2 From 242187b362555849e8c971dfbbfd55f8bd9fa717 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 11 Jan 2013 12:08:57 +0100 Subject: udldrmfb: udl_get_edid: usb_control_msg buffer must not be on the stack The buffer passed to usb_control_msg may end up in scatter-gather list, and may thus not be on the stack. Having it on the stack usually works on x86, but not on other archs. Signed-off-by: Hans de Goede Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c index 3e6208f..353bc1e 100644 --- a/drivers/gpu/drm/udl/udl_connector.c +++ b/drivers/gpu/drm/udl/udl_connector.c @@ -22,13 +22,17 @@ static u8 *udl_get_edid(struct udl_device *udl) { u8 *block; - char rbuf[3]; + char *rbuf; int ret, i; block = kmalloc(EDID_LENGTH, GFP_KERNEL); if (block == NULL) return NULL; + rbuf = kmalloc(2, GFP_KERNEL); + if (rbuf == NULL) + goto error; + for (i = 0; i < EDID_LENGTH; i++) { ret = usb_control_msg(udl->ddev->usbdev, usb_rcvctrlpipe(udl->ddev->usbdev, 0), (0x02), @@ -42,10 +46,12 @@ static u8 *udl_get_edid(struct udl_device *udl) block[i] = rbuf[1]; } + kfree(rbuf); return block; error: kfree(block); + kfree(rbuf); return NULL; } -- cgit v0.10.2 From 7b4cf994e4c6ba48872bb25253cc393b7fb74c82 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 11 Jan 2013 12:08:58 +0100 Subject: udldrmfb: udl_get_edid: drop unneeded i-- This is a left-over from when udl_get_edid returned the amount of bytes successfully read, which it no longer does. Signed-off-by: Hans de Goede Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c index 353bc1e..fe5cdbc 100644 --- a/drivers/gpu/drm/udl/udl_connector.c +++ b/drivers/gpu/drm/udl/udl_connector.c @@ -40,7 +40,6 @@ static u8 *udl_get_edid(struct udl_device *udl) HZ); if (ret < 1) { DRM_ERROR("Read EDID byte %d failed err %x\n", i, ret); - i--; goto error; } block[i] = rbuf[1]; -- cgit v0.10.2 From 397c60668aa5ae7130b5ad4e73870d7b8a787085 Mon Sep 17 00:00:00 2001 From: Nitin Gupta Date: Wed, 2 Jan 2013 08:53:41 -0800 Subject: staging: zram: fix invalid memory references during disk write Fixes a bug introduced by commit c8f2f0db1 ("zram: Fix handling of incompressible pages") which caused invalid memory references during disk write. Invalid references could occur in two cases: - Incoming data expands on compression: In this case, reference was made to kunmap()'ed bio page. - Partial (non PAGE_SIZE) write with incompressible data: In this case, reference was made to a kfree()'ed buffer. Fixes bug 50081: https://bugzilla.kernel.org/show_bug.cgi?id=50081 Signed-off-by: Nitin Gupta Cc: stable Reported-by: Mihail Kasadjikov Reported-by: Tomas M Reviewed-by: Minchan Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index fb4a7c9..f2a73bd 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -265,7 +265,7 @@ out_cleanup: static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index, int offset) { - int ret; + int ret = 0; size_t clen; unsigned long handle; struct page *page; @@ -286,10 +286,8 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index, goto out; } ret = zram_decompress_page(zram, uncmem, index); - if (ret) { - kfree(uncmem); + if (ret) goto out; - } } /* @@ -302,16 +300,18 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index, user_mem = kmap_atomic(page); - if (is_partial_io(bvec)) + if (is_partial_io(bvec)) { memcpy(uncmem + offset, user_mem + bvec->bv_offset, bvec->bv_len); - else + kunmap_atomic(user_mem); + user_mem = NULL; + } else { uncmem = user_mem; + } if (page_zero_filled(uncmem)) { - kunmap_atomic(user_mem); - if (is_partial_io(bvec)) - kfree(uncmem); + if (!is_partial_io(bvec)) + kunmap_atomic(user_mem); zram_stat_inc(&zram->stats.pages_zero); zram_set_flag(zram, index, ZRAM_ZERO); ret = 0; @@ -321,9 +321,11 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index, ret = lzo1x_1_compress(uncmem, PAGE_SIZE, src, &clen, zram->compress_workmem); - kunmap_atomic(user_mem); - if (is_partial_io(bvec)) - kfree(uncmem); + if (!is_partial_io(bvec)) { + kunmap_atomic(user_mem); + user_mem = NULL; + uncmem = NULL; + } if (unlikely(ret != LZO_E_OK)) { pr_err("Compression failed! err=%d\n", ret); @@ -332,8 +334,10 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index, if (unlikely(clen > max_zpage_size)) { zram_stat_inc(&zram->stats.bad_compress); - src = uncmem; clen = PAGE_SIZE; + src = NULL; + if (is_partial_io(bvec)) + src = uncmem; } handle = zs_malloc(zram->mem_pool, clen); @@ -345,7 +349,11 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index, } cmem = zs_map_object(zram->mem_pool, handle, ZS_MM_WO); + if ((clen == PAGE_SIZE) && !is_partial_io(bvec)) + src = kmap_atomic(page); memcpy(cmem, src, clen); + if ((clen == PAGE_SIZE) && !is_partial_io(bvec)) + kunmap_atomic(src); zs_unmap_object(zram->mem_pool, handle); @@ -358,9 +366,10 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec, u32 index, if (clen <= PAGE_SIZE / 2) zram_stat_inc(&zram->stats.good_compress); - return 0; - out: + if (is_partial_io(bvec)) + kfree(uncmem); + if (ret) zram_stat64_inc(zram, &zram->stats.failed_writes); return ret; -- cgit v0.10.2 From ab3cd8670e0b3fcde7f029e1503ed3c5138e9571 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Sun, 13 Jan 2013 20:36:39 -0800 Subject: x86/Sandy Bridge: mark arrays in __init functions as __initconst Mark static arrays as __initconst so they get removed when the init sections are flushed. Reported-by: Mathias Krause Link: http://lkml.kernel.org/r/75F4BEE6-CB0E-4426-B40B-697451677738@googlemail.com Signed-off-by: H. Peter Anvin diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 9dcb325..18182d1 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -614,7 +614,7 @@ static bool __init snb_gfx_workaround_needed(void) { int i; u16 vendor, devid; - static const u16 snb_ids[] = { + static const __initconst u16 snb_ids[] = { 0x0102, 0x0112, 0x0122, @@ -646,7 +646,7 @@ static bool __init snb_gfx_workaround_needed(void) */ static void __init trim_snb_memory(void) { - static const unsigned long bad_pages[] = { + static const __initconst unsigned long bad_pages[] = { 0x20050000, 0x20110000, 0x20130000, -- cgit v0.10.2 From e43b3cec711a61edf047adf6204d542f3a659ef8 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Sun, 13 Jan 2013 20:56:41 -0800 Subject: x86/Sandy Bridge: Sandy Bridge workaround depends on CONFIG_PCI early_pci_allowed() and read_pci_config_16() are only available if CONFIG_PCI is defined. Signed-off-by: H. Peter Anvin Cc: Jesse Barnes diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 18182d1..00f6c14 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -612,6 +612,7 @@ static unsigned reserve_low = CONFIG_X86_RESERVE_LOW << 10; static bool __init snb_gfx_workaround_needed(void) { +#ifdef CONFIG_PCI int i; u16 vendor, devid; static const __initconst u16 snb_ids[] = { @@ -636,6 +637,7 @@ static bool __init snb_gfx_workaround_needed(void) for (i = 0; i < ARRAY_SIZE(snb_ids); i++) if (devid == snb_ids[i]) return true; +#endif return false; } -- cgit v0.10.2 From a246f581fceb2d6c83a74364f4a4c6263e6cdfe4 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 14 Jan 2013 17:59:03 +0900 Subject: sh: wire up finit_module syscall. Signed-off-by: Paul Mundt diff --git a/arch/sh/include/uapi/asm/unistd_32.h b/arch/sh/include/uapi/asm/unistd_32.h index 9e465f2..d13a1d6 100644 --- a/arch/sh/include/uapi/asm/unistd_32.h +++ b/arch/sh/include/uapi/asm/unistd_32.h @@ -379,7 +379,8 @@ #define __NR_process_vm_readv 365 #define __NR_process_vm_writev 366 #define __NR_kcmp 367 +#define __NR_finit_module 368 -#define NR_syscalls 368 +#define NR_syscalls 369 #endif /* __ASM_SH_UNISTD_32_H */ diff --git a/arch/sh/include/uapi/asm/unistd_64.h b/arch/sh/include/uapi/asm/unistd_64.h index 8e3a2ed..e6820c8 100644 --- a/arch/sh/include/uapi/asm/unistd_64.h +++ b/arch/sh/include/uapi/asm/unistd_64.h @@ -399,7 +399,8 @@ #define __NR_process_vm_readv 376 #define __NR_process_vm_writev 377 #define __NR_kcmp 378 +#define __NR_finit_module 379 -#define NR_syscalls 379 +#define NR_syscalls 380 #endif /* __ASM_SH_UNISTD_64_H */ diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S index fe97ae5..734234b 100644 --- a/arch/sh/kernel/syscalls_32.S +++ b/arch/sh/kernel/syscalls_32.S @@ -385,3 +385,4 @@ ENTRY(sys_call_table) .long sys_process_vm_readv /* 365 */ .long sys_process_vm_writev .long sys_kcmp + .long sys_finit_module diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S index 5c7b1c6..579fcb9 100644 --- a/arch/sh/kernel/syscalls_64.S +++ b/arch/sh/kernel/syscalls_64.S @@ -405,3 +405,4 @@ sys_call_table: .long sys_process_vm_readv .long sys_process_vm_writev .long sys_kcmp + .long sys_finit_module -- cgit v0.10.2 From b98ae2729dea161edc96c9d177459b6c28bcbba5 Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Fri, 4 Jan 2013 17:02:18 +0100 Subject: ALSA: usb - fix race in creation of M-Audio Fast track pro driver A patch in the 3.2 kernel caused regression with hotplugging the M-Audio Fast track pro, or sound after suspend. I don't have the device so I haven't done a full analysis, but it seems userspace (both udev and pulseaudio) got confused when a card was created, immediately destroyed, and then created again. However, at least one person in the bug report (martin djfun) reports that this patch resolves the issue for him. It also leaves a message in the log: "snd-usb-audio: probe of 1-1.1:1.1 failed with error -5" which is a bit misleading. It is better than non-working audio, but maybe there's a more elegant solution? BugLink: https://bugs.launchpad.net/bugs/1095315 Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index acc12f0..e71fc8b 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -387,11 +387,13 @@ static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev) * rules */ err = usb_driver_set_configuration(dev, 2); - if (err < 0) { + if (err < 0) snd_printdd("error usb_driver_set_configuration: %d\n", err); - return -ENODEV; - } + /* Always return an error, so that we stop creating a device + that will just be destroyed and recreated with a new + configuration */ + return -ENODEV; } else snd_printk(KERN_INFO "usb-audio: Fast Track Pro config OK\n"); -- cgit v0.10.2 From 2aad272b3f458564f2d505465c88fcde37017ba0 Mon Sep 17 00:00:00 2001 From: Eldad Zack Date: Sun, 13 Jan 2013 23:02:02 +0100 Subject: ALSA: usb-audio: correct M-Audio C400 clock source quirk Taking another look at the C400 descriptors, I see now that there is a clock selector (0x80) for this device. Right now, the clock source points to the internal clock (0x81), which is also valid. When the external clock source (0x82) is selected in the mixer, and the rates mismatch (if it's free-running it is fixed to 48KHz), xruns will occur. Set the clock ID to the clock selector unit (0x81), which then allows the validation code to function correctly. Signed-off-by: Eldad Zack Signed-off-by: Takashi Iwai diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index 78e845e..64d25a7 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -2289,7 +2289,7 @@ YAMAHA_DEVICE(0x7010, "UB99"), .rate_table = (unsigned int[]) { 44100, 48000, 88200, 96000 }, - .clock = 0x81, + .clock = 0x80, } }, /* Capture */ @@ -2315,7 +2315,7 @@ YAMAHA_DEVICE(0x7010, "UB99"), .rate_table = (unsigned int[]) { 44100, 48000, 88200, 96000 }, - .clock = 0x81, + .clock = 0x80, } }, /* MIDI */ -- cgit v0.10.2 From 83e3acd494f47dc5dababfe6156c6178aca5c3a9 Mon Sep 17 00:00:00 2001 From: Eldad Zack Date: Sun, 13 Jan 2013 23:02:03 +0100 Subject: ALSA: usb-audio: M-Audio FT C400 skip packet quirk Attain constant real-world latency by skipping 16 data packets. The number of packets to be skipped was found by trial and error. Signed-off-by: Eldad Zack Signed-off-by: Takashi Iwai diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index e71fc8b..2c97185 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -861,6 +861,17 @@ void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep) if ((le16_to_cpu(ep->chip->dev->descriptor.idVendor) == 0x23ba) && ep->type == SND_USB_ENDPOINT_TYPE_SYNC) ep->skip_packets = 4; + + /* + * M-Audio Fast Track C400 - when packets are not skipped, real world + * latency varies by approx. +/- 50 frames (at 96KHz) each time the + * stream is (re)started. When skipping packets 16 at endpoint start + * up, the real world latency is stable within +/- 1 frame (also + * across power cycles). + */ + if (ep->chip->usb_id == USB_ID(0x0763, 0x2030) && + ep->type == SND_USB_ENDPOINT_TYPE_DATA) + ep->skip_packets = 16; } void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe, -- cgit v0.10.2 From 39e95156b9c778de37f5bf72e50fbdbbbdfb7630 Mon Sep 17 00:00:00 2001 From: Eldad Zack Date: Sun, 13 Jan 2013 23:02:04 +0100 Subject: ALSA: usb-audio: selector map for M-Audio FT C400 Add names of the clock sources for the M-Audio Fast Track C400. Signed-off-by: Eldad Zack Signed-off-by: Takashi Iwai diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c index e71fe55..0e2ed3d 100644 --- a/sound/usb/mixer_maps.c +++ b/sound/usb/mixer_maps.c @@ -179,6 +179,15 @@ static struct usbmix_name_map audigy2nx_map[] = { { 0 } /* terminator */ }; +static struct usbmix_selector_map c400_selectors[] = { + { + .id = 0x80, + .count = 2, + .names = (const char*[]) {"Internal", "SPDIF"} + }, + { 0 } /* terminator */ +}; + static struct usbmix_selector_map audigy2nx_selectors[] = { { .id = 14, /* Capture Source */ @@ -367,6 +376,10 @@ static struct usbmix_ctl_map usbmix_ctl_maps[] = { .map = hercules_usb51_map, }, { + .id = USB_ID(0x0763, 0x2030), + .selector_map = c400_selectors, + }, + { .id = USB_ID(0x08bb, 0x2702), .map = linex_map, .ignore_ctl_error = 1, -- cgit v0.10.2 From 14eae6e9d455a7848a5e45ff193a14925478f6ab Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 14 Jan 2013 18:07:36 +0900 Subject: sh: Fix up stack debugging build. Somewhere along the line the ebss label was taken out, resulting in pcrel branch too far errors. Restore the label to get things building again. Signed-off-by: Paul Mundt diff --git a/arch/sh/lib/mcount.S b/arch/sh/lib/mcount.S index 60164e6..52aa201 100644 --- a/arch/sh/lib/mcount.S +++ b/arch/sh/lib/mcount.S @@ -294,6 +294,8 @@ stack_panic: .align 2 .L_init_thread_union: .long init_thread_union +.L_ebss: + .long __bss_stop .Lpanic: .long panic .Lpanic_s: -- cgit v0.10.2 From d0b6a548f7fc9af9cc0bdea5bcc66bec3581ec37 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 28 Dec 2012 17:42:47 -0700 Subject: arm64: dts: prevent *.dtb from always being rebuilt if_changed (used by the *.dts->*.dtc rule) rebuilds files if they aren't contained in $(targets). (make V=2 indicates this). Add $(dtb-y) to $(targets) to prevent *.dtb from always being rebuilt. Note This fixes a regression introduced by the .dtb rule rework in da4cbc6 "arm64: use new common dtc rule", although since arm64 doesn't actually have any *.dts yet, this isn't a critical issue. Signed-off-by: Stephen Warren Signed-off-by: Rob Herring diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile index 801e2d7..32ac0ae 100644 --- a/arch/arm64/boot/dts/Makefile +++ b/arch/arm64/boot/dts/Makefile @@ -1,4 +1,5 @@ targets += dtbs +targets += $(dtb-y) dtbs: $(addprefix $(obj)/, $(dtb-y)) -- cgit v0.10.2 From 1ab3681271c84b7f926be9ae3be1d769b7e933e9 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 28 Dec 2012 17:42:46 -0700 Subject: ARM: dts: prevent *.dtb from always being rebuilt if_changed (used by the *.dts->*.dtc rule) rebuilds files if they aren't contained in $(targets). (make V=2 indicates this). Add $(dtb-y) to $(targets) to prevent *.dtb from always being rebuilt. This fixes a regression introduced by the .dtb rule rework in 499cd82 "ARM: dt: change .dtb build rules to build in dts directory". Reported-by: Shawn Guo Signed-off-by: Stephen Warren Signed-off-by: Rob Herring diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index e44da40..5ebb44f 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -155,6 +155,7 @@ dtb-$(CONFIG_ARCH_VT8500) += vt8500-bv07.dtb \ dtb-$(CONFIG_ARCH_ZYNQ) += zynq-zc702.dtb targets += dtbs +targets += $(dtb-y) endif # *.dtb used to be generated in the directory above. Clean out the -- cgit v0.10.2 From 250bfd3d8e7e19cb649dd94689f0af2ce3474060 Mon Sep 17 00:00:00 2001 From: Liu Bo Date: Mon, 14 Jan 2013 10:54:11 +0800 Subject: tracing: Fix regression of trace_pipe Commit 0fb9656d "tracing: Make tracing_enabled be equal to tracing_on" changes the behaviour of trace_pipe, ie. it makes trace_pipe return if we've read something and tracing is enabled, and this means that we have to 'cat trace_pipe' again and again while running tests. IMO the right way is if tracing is enabled, we always block and wait for ring buffer, or we may lose what we want since ring buffer's size is limited. Link: http://lkml.kernel.org/r/1358132051-5410-1-git-send-email-bo.li.liu@oracle.com Signed-off-by: Liu Bo Signed-off-by: Steven Rostedt diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index f3ec1cf..3c13e46 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3454,7 +3454,7 @@ static int tracing_wait_pipe(struct file *filp) return -EINTR; /* - * We block until we read something and tracing is enabled. + * We block until we read something and tracing is disabled. * We still block if tracing is disabled, but we have never * read anything. This allows a user to cat this file, and * then enable tracing. But after we have read something, @@ -3462,7 +3462,7 @@ static int tracing_wait_pipe(struct file *filp) * * iter->pos will be 0 if we haven't read anything. */ - if (tracing_is_enabled() && iter->pos) + if (!tracing_is_enabled() && iter->pos) break; } -- cgit v0.10.2 From 6d283dba3721cc43be014b50a1acc2f35860a65a Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 14 Jan 2013 13:17:50 -0800 Subject: vfs: add missing virtual cache flush after editing partial pages Andrew Morton pointed this out a month ago, and then I completely forgot about it. If we read a partial last page of a block device, we will zero out the end of the page, but since that page can then be mapped into user space, we should also make sure to flush the cache on architectures that have virtual caches. We have the flush_dcache_page() function for this, so use it. Now, in practice this really never matters, because nobody sane uses virtual caches to begin with, and they largely exist on old broken RISC arhitectures. And even if you did run on one of those obsolete CPU's, the whole "mmap and access the last partial page of a block device" behavior probably doesn't actually exist. The normal IO functions (read/write) will never see the zeroed-out part of the page that migth not be coherent in the cache, because they honor the size of the device. So I'm marking this for stable (3.7 only), but I'm not sure anybody will ever care. Pointed-out-by: Andrew Morton Cc: stable@vger.kernel.org # 3.7 Signed-off-by: Linus Torvalds diff --git a/fs/buffer.c b/fs/buffer.c index c017a2d..7a75c3e 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -2935,6 +2935,7 @@ static void guard_bh_eod(int rw, struct bio *bio, struct buffer_head *bh) void *kaddr = kmap_atomic(bh->b_page); memset(kaddr + bh_offset(bh) + bytes, 0, bh->b_size - bytes); kunmap_atomic(kaddr); + flush_dcache_page(bh->b_page); } } -- cgit v0.10.2 From 7e2fb2d7e6a3094473f101ae33dd6431ae6d2ed1 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Tue, 18 Dec 2012 11:03:57 -0600 Subject: jbd: don't wake kjournald unnecessarily Don't send an extra wakeup to kjournald in the case where we already have the proper target in j_commit_request, i.e. that commit has already been requested for commit. commit d9b0193 "jbd: fix fsync() tid wraparound bug" changed the logic leading to a wakeup, but it caused some extra wakeups which were found to lead to a measurable performance regression. Signed-off-by: Eric Sandeen Signed-off-by: Jan Kara diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c index a286233..81cc7ea 100644 --- a/fs/jbd/journal.c +++ b/fs/jbd/journal.c @@ -446,7 +446,8 @@ int __log_start_commit(journal_t *journal, tid_t target) * currently running transaction (if it exists). Otherwise, * the target tid must be an old one. */ - if (journal->j_running_transaction && + if (journal->j_commit_request != target && + journal->j_running_transaction && journal->j_running_transaction->t_tid == target) { /* * We want a new commit: OK, mark the request and wakeup the -- cgit v0.10.2 From 1b1baff6e50df855238ce5e6c0e7dbb8a261fb32 Mon Sep 17 00:00:00 2001 From: Namjae Jeon Date: Mon, 14 Jan 2013 22:53:47 +0100 Subject: UDF: Fix a null pointer dereference in udf_sb_free_partitions This patch fixes a regression caused by commit bff943af6fe "udf: Fix memory leak when mounting" due to which it was triggering a kernel null point dereference in case of interrupted mount OR when allocating memory to sbi->s_partmaps failed in function udf_sb_alloc_partition_maps. Reported-and-tested-by: James Hogan Signed-off-by: Namjae Jeon Signed-off-by: Ashish Sangwan Signed-off-by: Jan Kara diff --git a/fs/udf/super.c b/fs/udf/super.c index d44fb56..e9be396 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -307,7 +307,8 @@ static void udf_sb_free_partitions(struct super_block *sb) { struct udf_sb_info *sbi = UDF_SB(sb); int i; - + if (sbi->s_partmaps == NULL) + return; for (i = 0; i < sbi->s_partitions; i++) udf_free_partition(&sbi->s_partmaps[i]); kfree(sbi->s_partmaps); -- cgit v0.10.2 From 8aef33a7cf40ca9da188e8578b2abe7267a38c52 Mon Sep 17 00:00:00 2001 From: Daniel Lezcano Date: Tue, 15 Jan 2013 14:18:04 +0100 Subject: cpuidle: remove the power_specified field in the driver We realized that the power usage field is never filled and when it is filled for tegra, the power_specified flag is not set causing all of these values to be reset when the driver is initialized with set_power_state(). However, the power_specified flag can be simply removed under the assumption that the states are always backward sorted, which is the case with the current code. This change allows the menu governor select function and the cpuidle_play_dead() to be simplified. Moreover, the set_power_states() function can removed as it does not make sense any more. Drop the power_specified flag from struct cpuidle_driver and make the related changes as described above. As a consequence, this also fixes the bug where on the dynamic C-states system, the power fields are not initialized. [rjw: Changelog] References: https://bugzilla.kernel.org/show_bug.cgi?id=42870 References: https://bugzilla.kernel.org/show_bug.cgi?id=43349 References: https://lkml.org/lkml/2012/10/16/518 Signed-off-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index fb4a7dd5..e1f6860 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -69,24 +69,15 @@ int cpuidle_play_dead(void) { struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices); struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev); - int i, dead_state = -1; - int power_usage = INT_MAX; + int i; if (!drv) return -ENODEV; /* Find lowest-power state that supports long-term idle */ - for (i = CPUIDLE_DRIVER_STATE_START; i < drv->state_count; i++) { - struct cpuidle_state *s = &drv->states[i]; - - if (s->power_usage < power_usage && s->enter_dead) { - power_usage = s->power_usage; - dead_state = i; - } - } - - if (dead_state != -1) - return drv->states[dead_state].enter_dead(dev, dead_state); + for (i = drv->state_count - 1; i >= CPUIDLE_DRIVER_STATE_START; i--) + if (drv->states[i].enter_dead) + return drv->states[i].enter_dead(dev, i); return -ENODEV; } diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c index c2b281a..422c7b6 100644 --- a/drivers/cpuidle/driver.c +++ b/drivers/cpuidle/driver.c @@ -19,34 +19,9 @@ DEFINE_SPINLOCK(cpuidle_driver_lock); static void __cpuidle_set_cpu_driver(struct cpuidle_driver *drv, int cpu); static struct cpuidle_driver * __cpuidle_get_cpu_driver(int cpu); -static void set_power_states(struct cpuidle_driver *drv) -{ - int i; - - /* - * cpuidle driver should set the drv->power_specified bit - * before registering if the driver provides - * power_usage numbers. - * - * If power_specified is not set, - * we fill in power_usage with decreasing values as the - * cpuidle code has an implicit assumption that state Cn - * uses less power than C(n-1). - * - * With CONFIG_ARCH_HAS_CPU_RELAX, C0 is already assigned - * an power value of -1. So we use -2, -3, etc, for other - * c-states. - */ - for (i = CPUIDLE_DRIVER_STATE_START; i < drv->state_count; i++) - drv->states[i].power_usage = -1 - i; -} - static void __cpuidle_driver_init(struct cpuidle_driver *drv) { drv->refcnt = 0; - - if (!drv->power_specified) - set_power_states(drv); } static int __cpuidle_register_driver(struct cpuidle_driver *drv, int cpu) diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index 20ea33a..fe343a0 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -312,7 +312,6 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev) { struct menu_device *data = &__get_cpu_var(menu_devices); int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY); - int power_usage = INT_MAX; int i; int multiplier; struct timespec t; @@ -383,11 +382,8 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev) if (s->exit_latency * multiplier > data->predicted_us) continue; - if (s->power_usage < power_usage) { - power_usage = s->power_usage; - data->last_state_idx = i; - data->exit_us = s->exit_latency; - } + data->last_state_idx = i; + data->exit_us = s->exit_latency; } /* not deepest C-state chosen for low predicted residency */ diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 3711b34..24cd1037 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -126,9 +126,9 @@ struct cpuidle_driver { struct module *owner; int refcnt; - unsigned int power_specified:1; /* set to 1 to use the core cpuidle time keeping (for all states). */ unsigned int en_core_tk_irqen:1; + /* states array must be ordered in decreasing power consumption */ struct cpuidle_state states[CPUIDLE_STATE_MAX]; int state_count; int safe_state_index; -- cgit v0.10.2 From 6f54c361329dbb67dac9de174e938992651d12d7 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 15 Jan 2013 14:44:41 +0100 Subject: ALSA: hda/hdmi - Work around "alsactl restore" errors When "alsactl restore" is performed on HDMI codecs, it tries to restore the channel map value since the channel map controls are writable. But hdmi_chmap_ctl_put() returns -EBADFD when no PCM stream is assigned yet, and this results in an error message from alsactl. Although the error is harmless, it's certainly ugly and can be regarded as a regression. As a workaround, this patch changes the return code in such a case to be zero for making others happy. (A slight excuse is: when the chmap is changed through the proper alsa-lib API, the PCM status is checked there anyway, so we don't have to be too strict in the kernel side.) Cc: [v3.7+] Signed-off-by: Takashi Iwai diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index b6c21ea..807a2aa 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1502,7 +1502,7 @@ static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol, ctl_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); substream = snd_pcm_chmap_substream(info, ctl_idx); if (!substream || !substream->runtime) - return -EBADFD; + return 0; /* just for avoiding error from alsactl restore */ switch (substream->runtime->status->state) { case SNDRV_PCM_STATE_OPEN: case SNDRV_PCM_STATE_SETUP: -- cgit v0.10.2 From 72d0ac048f3ded4022cf1cc72f54073f6fcad72f Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Mon, 14 Jan 2013 14:45:46 +0000 Subject: arm64: compat: add syscall table entries for new syscalls There have been a number of new syscalls introduced to arch/arm/ since the compat layer was implemented for arm64, so add pointers to the relevant functions to the compat syscall table. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h index 5843262..5ef47ba 100644 --- a/arch/arm64/include/asm/unistd32.h +++ b/arch/arm64/include/asm/unistd32.h @@ -395,8 +395,13 @@ __SYSCALL(370, sys_name_to_handle_at) __SYSCALL(371, compat_sys_open_by_handle_at) __SYSCALL(372, compat_sys_clock_adjtime) __SYSCALL(373, sys_syncfs) +__SYSCALL(374, compat_sys_sendmmsg) +__SYSCALL(375, sys_setns) +__SYSCALL(376, compat_sys_process_vm_readv) +__SYSCALL(377, compat_sys_process_vm_writev) +__SYSCALL(378, sys_ni_syscall) /* 378 for kcmp */ -#define __NR_compat_syscalls 374 +#define __NR_compat_syscalls 379 /* * Compat syscall numbers used by the AArch64 kernel. -- cgit v0.10.2 From 035688d9c64c61957dd272a1e773f27b0143704d Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 24 Dec 2012 20:04:20 -0800 Subject: sh: ecovec: add sample amixer settings FSI - DA7210 needs amixer settings to use it. This patch adds quick setting guide Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c index 3fede45..a0fa579 100644 --- a/arch/sh/boards/mach-ecovec24/setup.c +++ b/arch/sh/boards/mach-ecovec24/setup.c @@ -70,6 +70,16 @@ * OFF-ON : MMC */ +/* + * FSI - DA7210 + * + * it needs amixer settings for playing + * + * amixer set 'HeadPhone' 80 + * amixer set 'Out Mixer Left DAC Left' on + * amixer set 'Out Mixer Right DAC Right' on + */ + /* Heartbeat */ static unsigned char led_pos[] = { 0, 1, 2, 3 }; -- cgit v0.10.2 From ed4f20943cd4c7b55105c04daedf8d63ab6d499c Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 14 Jan 2013 16:55:55 +0100 Subject: s390/time: fix sched_clock() overflow Converting a 64 Bit TOD format value to nanoseconds means that the value must be divided by 4.096. In order to achieve that we multiply with 125 and divide by 512. When used within sched_clock() this triggers an overflow after appr. 417 days. Resulting in a sched_clock() return value that is much smaller than previously and therefore may cause all sort of weird things in subsystems that rely on a monotonic sched_clock() behaviour. To fix this implement a tod_to_ns() helper function which converts TOD values without overflow and call this function from both places that open coded the conversion: sched_clock() and kvm_s390_handle_wait(). Cc: stable@kernel.org Reviewed-by: Martin Schwidefsky Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h index fba4d66..4c060bb 100644 --- a/arch/s390/include/asm/timex.h +++ b/arch/s390/include/asm/timex.h @@ -128,4 +128,32 @@ static inline unsigned long long get_clock_monotonic(void) return get_clock_xt() - sched_clock_base_cc; } +/** + * tod_to_ns - convert a TOD format value to nanoseconds + * @todval: to be converted TOD format value + * Returns: number of nanoseconds that correspond to the TOD format value + * + * Converting a 64 Bit TOD format value to nanoseconds means that the value + * must be divided by 4.096. In order to achieve that we multiply with 125 + * and divide by 512: + * + * ns = (todval * 125) >> 9; + * + * In order to avoid an overflow with the multiplication we can rewrite this. + * With a split todval == 2^32 * th + tl (th upper 32 bits, tl lower 32 bits) + * we end up with + * + * ns = ((2^32 * th + tl) * 125 ) >> 9; + * -> ns = (2^23 * th * 125) + ((tl * 125) >> 9); + * + */ +static inline unsigned long long tod_to_ns(unsigned long long todval) +{ + unsigned long long ns; + + ns = ((todval >> 32) << 23) * 125; + ns += ((todval & 0xffffffff) * 125) >> 9; + return ns; +} + #endif diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index aff0e35..a5f4f5a 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -63,7 +63,7 @@ static DEFINE_PER_CPU(struct clock_event_device, comparators); */ unsigned long long notrace __kprobes sched_clock(void) { - return (get_clock_monotonic() * 125) >> 9; + return tod_to_ns(get_clock_monotonic()); } /* diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index c30615e..82c481d 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -408,7 +408,7 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu) return 0; } - sltime = ((vcpu->arch.sie_block->ckc - now)*125)>>9; + sltime = tod_to_ns(vcpu->arch.sie_block->ckc - now); hrtimer_start(&vcpu->arch.ckc_timer, ktime_set (0, sltime) , HRTIMER_MODE_REL); VCPU_EVENT(vcpu, 5, "enabled wait via clock comparator: %llx ns", sltime); -- cgit v0.10.2 From 509d97b6f91b51e180ba26ddb1e2b7f6dfa80cba Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Tue, 15 Jan 2013 19:02:01 +0100 Subject: s390/chsc: fix SEI usage cbc0dd1 "s390/pci: CHSC PCI support for error and availability events" introduced a new SEI notification type as part of pci support. The way SEI was called with nt2 and nt0 consecutive broke the nt0 stuff used for channel subsystem notifications. The reason why this was broken with the mentioned patch is that you cannot selectively disable type 0 notifications (so even when asked for type 2 only, type 0 could be presented). The way to do it is to tell SEI which types of notification you can process and -this is the important part- look at the SEI result which notification type you actually received. Reviewed-by: Peter Oberparleiter Tested-by: Michael Holzheu Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 68e80e2..10729bb 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -283,7 +283,7 @@ struct chsc_sei_nt2_area { u8 ccdf[PAGE_SIZE - 24 - 56]; /* content-code dependent field */ } __packed; -#define CHSC_SEI_NT0 0ULL +#define CHSC_SEI_NT0 (1ULL << 63) #define CHSC_SEI_NT2 (1ULL << 61) struct chsc_sei { @@ -291,7 +291,8 @@ struct chsc_sei { u32 reserved1; u64 ntsm; /* notification type mask */ struct chsc_header response; - u32 reserved2; + u32 :24; + u8 nt; union { struct chsc_sei_nt0_area nt0_area; struct chsc_sei_nt2_area nt2_area; @@ -496,17 +497,17 @@ static int __chsc_process_crw(struct chsc_sei *sei, u64 ntsm) css_schedule_eval_all(); } - switch (sei->ntsm) { - case CHSC_SEI_NT0: + switch (sei->nt) { + case 0: chsc_process_sei_nt0(&sei->u.nt0_area); - return 1; - case CHSC_SEI_NT2: + break; + case 2: chsc_process_sei_nt2(&sei->u.nt2_area); - return 1; + break; default: - CIO_CRW_EVENT(2, "chsc: unhandled nt (nt=%08Lx)\n", - sei->ntsm); - return 0; + CIO_CRW_EVENT(2, "chsc: unhandled nt=%d\n", + sei->nt); + break; } } else { CIO_CRW_EVENT(2, "chsc: sei failed (rc=%04x)\n", @@ -537,15 +538,7 @@ static void chsc_process_crw(struct crw *crw0, struct crw *crw1, int overflow) sei = sei_page; CIO_TRACE_EVENT(2, "prcss"); - - /* - * The ntsm does not allow to select NT0 and NT2 together. We need to - * first check for NT2, than additionally for NT0... - */ -#ifdef CONFIG_PCI - if (!__chsc_process_crw(sei, CHSC_SEI_NT2)) -#endif - __chsc_process_crw(sei, CHSC_SEI_NT0); + __chsc_process_crw(sei, CHSC_SEI_NT0 | CHSC_SEI_NT2); } void chsc_chp_online(struct chp_id chpid) -- cgit v0.10.2 From 774a1221e862b343388347bac9b318767336b20b Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 15 Jan 2013 18:52:51 -0800 Subject: module, async: async_synchronize_full() on module init iff async is used If the default iosched is built as module, the kernel may deadlock while trying to load the iosched module on device probe if the probing was running off async. This is because async_synchronize_full() at the end of module init ends up waiting for the async job which initiated the module loading. async A modprobe 1. finds a device 2. registers the block device 3. request_module(default iosched) 4. modprobe in userland 5. load and init module 6. async_synchronize_full() Async A waits for modprobe to finish in request_module() and modprobe waits for async A to finish in async_synchronize_full(). Because there's no easy to track dependency once control goes out to userland, implementing properly nested flushing is difficult. For now, make module init perform async_synchronize_full() iff module init has queued async jobs as suggested by Linus. This avoids the described deadlock because iosched module doesn't use async and thus wouldn't invoke async_synchronize_full(). This is hacky and incomplete. It will deadlock if async module loading nests; however, this works around the known problem case and seems to be the best of bad options. For more details, please refer to the following thread. http://thread.gmane.org/gmane.linux.kernel/1420814 Signed-off-by: Tejun Heo Reported-by: Alex Riesen Tested-by: Ming Lei Tested-by: Alex Riesen Cc: Arjan van de Ven Cc: Jens Axboe Signed-off-by: Linus Torvalds diff --git a/include/linux/sched.h b/include/linux/sched.h index 206bb08..6fc8f45 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1810,6 +1810,7 @@ extern void thread_group_cputime_adjusted(struct task_struct *p, cputime_t *ut, #define PF_MEMALLOC 0x00000800 /* Allocating memory */ #define PF_NPROC_EXCEEDED 0x00001000 /* set_user noticed that RLIMIT_NPROC was exceeded */ #define PF_USED_MATH 0x00002000 /* if unset the fpu must be initialized before use */ +#define PF_USED_ASYNC 0x00004000 /* used async_schedule*(), used by module init */ #define PF_NOFREEZE 0x00008000 /* this thread should not be frozen */ #define PF_FROZEN 0x00010000 /* frozen for system suspend */ #define PF_FSTRANS 0x00020000 /* inside a filesystem transaction */ diff --git a/kernel/async.c b/kernel/async.c index 9d31183..a1d585c 100644 --- a/kernel/async.c +++ b/kernel/async.c @@ -196,6 +196,9 @@ static async_cookie_t __async_schedule(async_func_ptr *ptr, void *data, struct a atomic_inc(&entry_count); spin_unlock_irqrestore(&async_lock, flags); + /* mark that this task has queued an async job, used by module init */ + current->flags |= PF_USED_ASYNC; + /* schedule for execution */ queue_work(system_unbound_wq, &entry->work); diff --git a/kernel/module.c b/kernel/module.c index 250092c..b10b048 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -3013,6 +3013,12 @@ static int do_init_module(struct module *mod) { int ret = 0; + /* + * We want to find out whether @mod uses async during init. Clear + * PF_USED_ASYNC. async_schedule*() will set it. + */ + current->flags &= ~PF_USED_ASYNC; + blocking_notifier_call_chain(&module_notify_list, MODULE_STATE_COMING, mod); @@ -3058,8 +3064,25 @@ static int do_init_module(struct module *mod) blocking_notifier_call_chain(&module_notify_list, MODULE_STATE_LIVE, mod); - /* We need to finish all async code before the module init sequence is done */ - async_synchronize_full(); + /* + * We need to finish all async code before the module init sequence + * is done. This has potential to deadlock. For example, a newly + * detected block device can trigger request_module() of the + * default iosched from async probing task. Once userland helper + * reaches here, async_synchronize_full() will wait on the async + * task waiting on request_module() and deadlock. + * + * This deadlock is avoided by perfomring async_synchronize_full() + * iff module init queued any async jobs. This isn't a full + * solution as it will deadlock the same if module loading from + * async jobs nests more than once; however, due to the various + * constraints, this hack seems to be the best option for now. + * Please refer to the following thread for details. + * + * http://thread.gmane.org/gmane.linux.kernel/1420814 + */ + if (current->flags & PF_USED_ASYNC) + async_synchronize_full(); mutex_lock(&module_mutex); /* Drop initial reference. */ -- cgit v0.10.2 From 4adf07fba3bd64472921a01aae0e116f9f948b77 Mon Sep 17 00:00:00 2001 From: Luciano Coelho Date: Tue, 15 Jan 2013 10:43:43 +0200 Subject: firmware: make sure the fw file size is not 0 If the requested firmware file size is 0 bytes in the filesytem, we will try to vmalloc(0), which causes a warning: vmalloc: allocation failure: 0 bytes kworker/1:1: page allocation failure: order:0, mode:0xd2 __vmalloc_node_range+0x164/0x208 __vmalloc_node+0x4c/0x58 vmalloc+0x38/0x44 _request_firmware_load+0x220/0x6b0 request_firmware+0x64/0xc8 wl18xx_setup+0xb4/0x570 [wl18xx] wlcore_nvs_cb+0x64/0x9f8 [wlcore] request_firmware_work_func+0x94/0x100 process_one_work+0x1d0/0x750 worker_thread+0x184/0x4ac kthread+0xb4/0xc0 To fix this, check whether the file size is less than or equal to zero in fw_read_file_contents(). Cc: stable [3.7] Signed-off-by: Luciano Coelho Acked-by: Ming Lei Signed-off-by: Linus Torvalds diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index d814603..b392b35 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -305,7 +305,7 @@ static bool fw_read_file_contents(struct file *file, struct firmware_buf *fw_buf char *buf; size = fw_file_size(file); - if (size < 0) + if (size <= 0) return false; buf = vmalloc(size); if (!buf) -- cgit v0.10.2 From c4ef9bc4f7e1807d499d3d427712df9f8aa2dcbb Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Tue, 15 Jan 2013 14:19:45 -0600 Subject: MAINTAINERS: update email address for Timur Tabi Timur Tabi no longer works for Freescale, so update the email address and status for all of his maintained projects. Also mark the QE library as orphaned, for lack of interest in maintaining it. The CS4270 driver is marked as "Odd Fixes" because appropriate hardware is no longer available. Signed-off-by: Timur Tabi Signed-off-by: Linus Torvalds diff --git a/MAINTAINERS b/MAINTAINERS index cd5b31f..3105c48 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1972,9 +1972,9 @@ S: Maintained F: drivers/usb/host/ohci-ep93xx.c CIRRUS LOGIC CS4270 SOUND DRIVER -M: Timur Tabi +M: Timur Tabi L: alsa-devel@alsa-project.org (moderated for non-subscribers) -S: Supported +S: Odd Fixes F: sound/soc/codecs/cs4270* CLEANCACHE API @@ -3191,9 +3191,9 @@ F: include/uapi/video/ F: include/uapi/linux/fb.h FREESCALE DIU FRAMEBUFFER DRIVER -M: Timur Tabi +M: Timur Tabi L: linux-fbdev@vger.kernel.org -S: Supported +S: Maintained F: drivers/video/fsl-diu-fb.* FREESCALE DMA DRIVER @@ -3228,9 +3228,8 @@ F: drivers/net/ethernet/freescale/fs_enet/ F: include/linux/fs_enet_pd.h FREESCALE QUICC ENGINE LIBRARY -M: Timur Tabi L: linuxppc-dev@lists.ozlabs.org -S: Supported +S: Orphan F: arch/powerpc/sysdev/qe_lib/ F: arch/powerpc/include/asm/*qe.h @@ -3249,16 +3248,16 @@ S: Maintained F: drivers/net/ethernet/freescale/ucc_geth* FREESCALE QUICC ENGINE UCC UART DRIVER -M: Timur Tabi +M: Timur Tabi L: linuxppc-dev@lists.ozlabs.org -S: Supported +S: Maintained F: drivers/tty/serial/ucc_uart.c FREESCALE SOC SOUND DRIVERS -M: Timur Tabi +M: Timur Tabi L: alsa-devel@alsa-project.org (moderated for non-subscribers) L: linuxppc-dev@lists.ozlabs.org -S: Supported +S: Maintained F: sound/soc/fsl/fsl* F: sound/soc/fsl/mpc8610_hpcd.c -- cgit v0.10.2 From e65b9ad222c280c031bc8d3642cc38dd3026fe06 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Tue, 15 Jan 2013 20:12:37 +0100 Subject: lockdep, rwsem: fix down_write_nest_lock() if !CONFIG_DEBUG_LOCK_ALLOC Commit 1b963c81b145 ("lockdep, rwsem: provide down_write_nest_lock()") contains a bug in a codepath when CONFIG_DEBUG_LOCK_ALLOC is disabled, which causes down_read() to be called instead of down_write() by mistake on such configurations. Fix that. Reported-and-tested-by: Andrew Clayton Reported-and-tested-by: Zlatko Calusic Signed-off-by: Jiri Kosina Reviewed-by: Rik van Riel Signed-off-by: Linus Torvalds diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 413cc11..8da67d6 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -135,7 +135,7 @@ do { \ #else # define down_read_nested(sem, subclass) down_read(sem) -# define down_write_nest_lock(sem, nest_lock) down_read(sem) +# define down_write_nest_lock(sem, nest_lock) down_write(sem) # define down_write_nested(sem, subclass) down_write(sem) #endif -- cgit v0.10.2 From 30a4840a4cd74301058a1f054f335185f978ace8 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 15 Jan 2013 15:27:46 +0100 Subject: drivers/base/cpu.c: Fix typo in comment [ We should make fun of people who can't speel too, but then we'd have no time for any real work at all - Linus ] Signed-off-by: Linus Torvalds diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 6345294..fb10728 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -224,7 +224,7 @@ static void cpu_device_release(struct device *dev) * by the cpu device. * * Never copy this way of doing things, or you too will be made fun of - * on the linux-kerenl list, you have been warned. + * on the linux-kernel list, you have been warned. */ } -- cgit v0.10.2 From fbfc23ef905e41cbf621031a3d560a55a010dd54 Mon Sep 17 00:00:00 2001 From: Chuansheng Liu Date: Mon, 24 Dec 2012 22:19:56 +0800 Subject: mfd, TWL4030: TWL4030 need select REGMAP_I2C Fix the build error: drivers/built-in.o: In function `twl_probe': drivers/mfd/twl-core.c:1256: undefined reference to `devm_regmap_init_i2c' make: *** [vmlinux] Error 1 Signed-off-by: liu chuansheng Acked-by: Peter Ujfalusi [ Samuel is busy, taking it directly - Linus ] Signed-off-by: Linus Torvalds diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 1c0abd4..47ad4e2 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -292,6 +292,7 @@ config TWL4030_CORE bool "Texas Instruments TWL4030/TWL5030/TWL6030/TPS659x0 Support" depends on I2C=y && GENERIC_HARDIRQS select IRQ_DOMAIN + select REGMAP_I2C help Say yes here if you have TWL4030 / TWL6030 family chip on your board. This core driver provides register access and IRQ handling -- cgit v0.10.2 From 3a55fb0d9fe8e2f4594329edd58c5fd6f35a99dd Mon Sep 17 00:00:00 2001 From: Kirill Smelkov Date: Fri, 2 Nov 2012 15:41:01 +0400 Subject: Tell the world we gave up on pushing CC_OPTIMIZE_FOR_SIZE In commit 281dc5c5ec0f ("Give up on pushing CC_OPTIMIZE_FOR_SIZE") we already changed the actual default value, but the help-text still suggested 'y'. Fix the help text too, for all the same reasons. Sadly, -Os keeps on generating some very suboptimal code for certain cases, to the point where any I$ miss upside is swamped by the downside. The main ones are: - using "rep movsb" for memcpy, even on CPU's where that is horrendously bad for performance. - not honoring branch prediction information, so any I$ footprint you win from smaller code, you lose from less code density in the I$. - using divide instructions when that is very expensive. Signed-off-by: Kirill Smelkov Signed-off-by: Linus Torvalds diff --git a/init/Kconfig b/init/Kconfig index 7d30240..be8b7f5 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1182,7 +1182,7 @@ config CC_OPTIMIZE_FOR_SIZE Enabling this option will pass "-Os" instead of "-O2" to gcc resulting in a smaller kernel. - If unsure, say Y. + If unsure, say N. config SYSCTL bool -- cgit v0.10.2 From d44d9bc68e32ad5881b105f82bd259d261d1ef74 Mon Sep 17 00:00:00 2001 From: Mark Tinguely Date: Tue, 4 Dec 2012 17:18:02 -0600 Subject: xfs: use b_maps[] for discontiguous buffers Commits starting at 77c1a08 introduced a multiple segment support to xfs_buf. xfs_trans_buf_item_match() could not find a multi-segment buffer in the transaction because it was looking at the single segment block number rather than the multi-segment b_maps[0].bm.bn. This results on a recursive buffer lock that can never be satisfied. This patch: 1) Changed the remaining b_map accesses to be b_maps[0] accesses. 2) Renames the single segment b_map structure to __b_map to avoid future confusion. Signed-off-by: Mark Tinguely Reviewed-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 26673a0..56d1614 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -175,7 +175,7 @@ xfs_buf_get_maps( bp->b_map_count = map_count; if (map_count == 1) { - bp->b_maps = &bp->b_map; + bp->b_maps = &bp->__b_map; return 0; } @@ -193,7 +193,7 @@ static void xfs_buf_free_maps( struct xfs_buf *bp) { - if (bp->b_maps != &bp->b_map) { + if (bp->b_maps != &bp->__b_map) { kmem_free(bp->b_maps); bp->b_maps = NULL; } @@ -377,8 +377,8 @@ xfs_buf_allocate_memory( } use_alloc_page: - start = BBTOB(bp->b_map.bm_bn) >> PAGE_SHIFT; - end = (BBTOB(bp->b_map.bm_bn + bp->b_length) + PAGE_SIZE - 1) + start = BBTOB(bp->b_maps[0].bm_bn) >> PAGE_SHIFT; + end = (BBTOB(bp->b_maps[0].bm_bn + bp->b_length) + PAGE_SIZE - 1) >> PAGE_SHIFT; page_count = end - start; error = _xfs_buf_get_pages(bp, page_count, flags); @@ -640,7 +640,7 @@ _xfs_buf_read( xfs_buf_flags_t flags) { ASSERT(!(flags & XBF_WRITE)); - ASSERT(bp->b_map.bm_bn != XFS_BUF_DADDR_NULL); + ASSERT(bp->b_maps[0].bm_bn != XFS_BUF_DADDR_NULL); bp->b_flags &= ~(XBF_WRITE | XBF_ASYNC | XBF_READ_AHEAD); bp->b_flags |= flags & (XBF_READ | XBF_ASYNC | XBF_READ_AHEAD); @@ -1709,7 +1709,7 @@ xfs_buf_cmp( struct xfs_buf *bp = container_of(b, struct xfs_buf, b_list); xfs_daddr_t diff; - diff = ap->b_map.bm_bn - bp->b_map.bm_bn; + diff = ap->b_maps[0].bm_bn - bp->b_maps[0].bm_bn; if (diff < 0) return -1; if (diff > 0) diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 23f5642..433a12e 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -151,7 +151,7 @@ typedef struct xfs_buf { struct page **b_pages; /* array of page pointers */ struct page *b_page_array[XB_PAGES]; /* inline pages */ struct xfs_buf_map *b_maps; /* compound buffer map */ - struct xfs_buf_map b_map; /* inline compound buffer map */ + struct xfs_buf_map __b_map; /* inline compound buffer map */ int b_map_count; int b_io_length; /* IO size in BBs */ atomic_t b_pin_count; /* pin count */ @@ -330,8 +330,8 @@ void xfs_buf_stale(struct xfs_buf *bp); * In future, uncached buffers will pass the block number directly to the io * request function and hence these macros will go away at that point. */ -#define XFS_BUF_ADDR(bp) ((bp)->b_map.bm_bn) -#define XFS_BUF_SET_ADDR(bp, bno) ((bp)->b_map.bm_bn = (xfs_daddr_t)(bno)) +#define XFS_BUF_ADDR(bp) ((bp)->b_maps[0].bm_bn) +#define XFS_BUF_SET_ADDR(bp, bno) ((bp)->b_maps[0].bm_bn = (xfs_daddr_t)(bno)) static inline void xfs_buf_set_ref(struct xfs_buf *bp, int lru_ref) { -- cgit v0.10.2 From 0f22f9d0cd8a630b40a9ccc07a8844345b185aae Mon Sep 17 00:00:00 2001 From: Mark Tinguely Date: Tue, 4 Dec 2012 17:18:03 -0600 Subject: xfs: rename bli_format to avoid confusion with bli_formats Rename the bli_format structure to __bli_format to avoid accidently confusing them with the bli_formats pointer. Signed-off-by: Mark Tinguely Reviewed-by: Christoph Hellwig Reviewed-by: Dave Chinner Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index becf4a9..1975b3d 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -71,7 +71,7 @@ xfs_buf_item_log_debug( chunk_num = byte >> XFS_BLF_SHIFT; word_num = chunk_num >> BIT_TO_WORD_SHIFT; bit_num = chunk_num & (NBWORD - 1); - wordp = &(bip->bli_format.blf_data_map[word_num]); + wordp = &(bip->__bli_format.blf_data_map[word_num]); bit_set = *wordp & (1 << bit_num); ASSERT(bit_set); byte++; @@ -237,7 +237,7 @@ xfs_buf_item_size( * cancel flag in it. */ trace_xfs_buf_item_size_stale(bip); - ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL); + ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL); return bip->bli_format_count; } @@ -278,7 +278,7 @@ xfs_buf_item_format_segment( uint buffer_offset; /* copy the flags across from the base format item */ - blfp->blf_flags = bip->bli_format.blf_flags; + blfp->blf_flags = bip->__bli_format.blf_flags; /* * Base size is the actual size of the ondisk structure - it reflects @@ -371,7 +371,7 @@ xfs_buf_item_format_segment( nbits++; } } - bip->bli_format.blf_size = nvecs; + bip->__bli_format.blf_size = nvecs; return vecp; } @@ -405,7 +405,7 @@ xfs_buf_item_format( if (bip->bli_flags & XFS_BLI_INODE_BUF) { if (!((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) && xfs_log_item_in_current_chkpt(lip))) - bip->bli_format.blf_flags |= XFS_BLF_INODE_BUF; + bip->__bli_format.blf_flags |= XFS_BLF_INODE_BUF; bip->bli_flags &= ~XFS_BLI_INODE_BUF; } @@ -485,7 +485,7 @@ xfs_buf_item_unpin( ASSERT(bip->bli_flags & XFS_BLI_STALE); ASSERT(xfs_buf_islocked(bp)); ASSERT(XFS_BUF_ISSTALE(bp)); - ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL); + ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL); trace_xfs_buf_item_unpin_stale(bip); @@ -631,7 +631,7 @@ xfs_buf_item_unlock( */ if (bip->bli_flags & XFS_BLI_STALE) { trace_xfs_buf_item_unlock_stale(bip); - ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL); + ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL); if (!aborted) { atomic_dec(&bip->bli_refcount); return; @@ -644,8 +644,8 @@ xfs_buf_item_unlock( * If the buf item isn't tracking any data, free it, otherwise drop the * reference we hold to it. */ - if (xfs_bitmap_empty(bip->bli_format.blf_data_map, - bip->bli_format.blf_map_size)) + if (xfs_bitmap_empty(bip->__bli_format.blf_data_map, + bip->__bli_format.blf_map_size)) xfs_buf_item_relse(bp); else atomic_dec(&bip->bli_refcount); @@ -716,7 +716,7 @@ xfs_buf_item_get_format( bip->bli_format_count = count; if (count == 1) { - bip->bli_formats = &bip->bli_format; + bip->bli_formats = &bip->__bli_format; return 0; } @@ -731,7 +731,7 @@ STATIC void xfs_buf_item_free_format( struct xfs_buf_log_item *bip) { - if (bip->bli_formats != &bip->bli_format) { + if (bip->bli_formats != &bip->__bli_format) { kmem_free(bip->bli_formats); bip->bli_formats = NULL; } diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h index 6850f49..16def43 100644 --- a/fs/xfs/xfs_buf_item.h +++ b/fs/xfs/xfs_buf_item.h @@ -104,7 +104,7 @@ typedef struct xfs_buf_log_item { #endif int bli_format_count; /* count of headers */ struct xfs_buf_log_format *bli_formats; /* array of in-log header ptrs */ - struct xfs_buf_log_format bli_format; /* embedded in-log header */ + struct xfs_buf_log_format __bli_format; /* embedded in-log header */ } xfs_buf_log_item_t; void xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *); diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index 4fc17d4..f7510bf 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -93,7 +93,7 @@ _xfs_trans_bjoin( xfs_buf_item_init(bp, tp->t_mountp); bip = bp->b_fspriv; ASSERT(!(bip->bli_flags & XFS_BLI_STALE)); - ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL)); + ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_CANCEL)); ASSERT(!(bip->bli_flags & XFS_BLI_LOGGED)); if (reset_recur) bip->bli_recur = 0; @@ -432,7 +432,7 @@ xfs_trans_brelse(xfs_trans_t *tp, bip = bp->b_fspriv; ASSERT(bip->bli_item.li_type == XFS_LI_BUF); ASSERT(!(bip->bli_flags & XFS_BLI_STALE)); - ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL)); + ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_CANCEL)); ASSERT(atomic_read(&bip->bli_refcount) > 0); trace_xfs_trans_brelse(bip); @@ -519,7 +519,7 @@ xfs_trans_bhold(xfs_trans_t *tp, ASSERT(bp->b_transp == tp); ASSERT(bip != NULL); ASSERT(!(bip->bli_flags & XFS_BLI_STALE)); - ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL)); + ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_CANCEL)); ASSERT(atomic_read(&bip->bli_refcount) > 0); bip->bli_flags |= XFS_BLI_HOLD; @@ -539,7 +539,7 @@ xfs_trans_bhold_release(xfs_trans_t *tp, ASSERT(bp->b_transp == tp); ASSERT(bip != NULL); ASSERT(!(bip->bli_flags & XFS_BLI_STALE)); - ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL)); + ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_CANCEL)); ASSERT(atomic_read(&bip->bli_refcount) > 0); ASSERT(bip->bli_flags & XFS_BLI_HOLD); @@ -598,7 +598,7 @@ xfs_trans_log_buf(xfs_trans_t *tp, bip->bli_flags &= ~XFS_BLI_STALE; ASSERT(XFS_BUF_ISSTALE(bp)); XFS_BUF_UNSTALE(bp); - bip->bli_format.blf_flags &= ~XFS_BLF_CANCEL; + bip->__bli_format.blf_flags &= ~XFS_BLF_CANCEL; } tp->t_flags |= XFS_TRANS_DIRTY; @@ -657,8 +657,8 @@ xfs_trans_binval( */ ASSERT(XFS_BUF_ISSTALE(bp)); ASSERT(!(bip->bli_flags & (XFS_BLI_LOGGED | XFS_BLI_DIRTY))); - ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_INODE_BUF)); - ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL); + ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_INODE_BUF)); + ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL); ASSERT(bip->bli_item.li_desc->lid_flags & XFS_LID_DIRTY); ASSERT(tp->t_flags & XFS_TRANS_DIRTY); return; @@ -668,10 +668,10 @@ xfs_trans_binval( bip->bli_flags |= XFS_BLI_STALE; bip->bli_flags &= ~(XFS_BLI_INODE_BUF | XFS_BLI_LOGGED | XFS_BLI_DIRTY); - bip->bli_format.blf_flags &= ~XFS_BLF_INODE_BUF; - bip->bli_format.blf_flags |= XFS_BLF_CANCEL; - memset((char *)(bip->bli_format.blf_data_map), 0, - (bip->bli_format.blf_map_size * sizeof(uint))); + bip->__bli_format.blf_flags &= ~XFS_BLF_INODE_BUF; + bip->__bli_format.blf_flags |= XFS_BLF_CANCEL; + memset((char *)(bip->__bli_format.blf_data_map), 0, + (bip->__bli_format.blf_map_size * sizeof(uint))); bip->bli_item.li_desc->lid_flags |= XFS_LID_DIRTY; tp->t_flags |= XFS_TRANS_DIRTY; } @@ -775,5 +775,5 @@ xfs_trans_dquot_buf( type == XFS_BLF_GDQUOT_BUF); ASSERT(atomic_read(&bip->bli_refcount) > 0); - bip->bli_format.blf_flags |= type; + bip->__bli_format.blf_flags |= type; } -- cgit v0.10.2 From 2d0e9df579029b62adc72b50977182757cc04cd5 Mon Sep 17 00:00:00 2001 From: Mark Tinguely Date: Tue, 4 Dec 2012 17:18:04 -0600 Subject: xfs: fix segment in xfs_buf_item_format_segment Not every segment in a multi-segment buffer is dirty in a transaction and they will not be outputted. The assert in xfs_buf_item_format_segment() that checks for the at least one chunk of data in the segment to be used is not necessary true for multi-segmented buffers. Signed-off-by: Mark Tinguely Reviewed-by: Dave Chinner Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index 1975b3d..c48e60b 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -287,6 +287,17 @@ xfs_buf_item_format_segment( */ base_size = offsetof(struct xfs_buf_log_format, blf_data_map) + (blfp->blf_map_size * sizeof(blfp->blf_data_map[0])); + + nvecs = 0; + first_bit = xfs_next_bit(blfp->blf_data_map, blfp->blf_map_size, 0); + if (!(bip->bli_flags & XFS_BLI_STALE) && first_bit == -1) { + /* + * If the map is not be dirty in the transaction, mark + * the size as zero and do not advance the vector pointer. + */ + goto out; + } + vecp->i_addr = blfp; vecp->i_len = base_size; vecp->i_type = XLOG_REG_TYPE_BFORMAT; @@ -301,15 +312,13 @@ xfs_buf_item_format_segment( */ trace_xfs_buf_item_format_stale(bip); ASSERT(blfp->blf_flags & XFS_BLF_CANCEL); - blfp->blf_size = nvecs; - return vecp; + goto out; } /* * Fill in an iovec for each set of contiguous chunks. */ - first_bit = xfs_next_bit(blfp->blf_data_map, blfp->blf_map_size, 0); - ASSERT(first_bit != -1); + last_bit = first_bit; nbits = 1; for (;;) { @@ -371,7 +380,8 @@ xfs_buf_item_format_segment( nbits++; } } - bip->__bli_format.blf_size = nvecs; +out: + blfp->blf_size = nvecs; return vecp; } -- cgit v0.10.2 From 91e4bac0b72736410c88632906953f14259144b1 Mon Sep 17 00:00:00 2001 From: Mark Tinguely Date: Tue, 4 Dec 2012 17:18:05 -0600 Subject: xfs: fix the multi-segment log buffer format Per Dave Chinner suggestion, this patch: 1) Corrects the detection of whether a multi-segment buffer is still tracking data. 2) Clears all the buffer log formats for a multi-segment buffer. Signed-off-by: Mark Tinguely Reviewed-by: Christoph Hellwig Reviewed-by: Dave Chinner Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index c48e60b..77b0975 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -611,7 +611,7 @@ xfs_buf_item_unlock( { struct xfs_buf_log_item *bip = BUF_ITEM(lip); struct xfs_buf *bp = bip->bli_buf; - int aborted; + int aborted, clean, i; uint hold; /* Clear the buffer's association with this transaction. */ @@ -654,8 +654,15 @@ xfs_buf_item_unlock( * If the buf item isn't tracking any data, free it, otherwise drop the * reference we hold to it. */ - if (xfs_bitmap_empty(bip->__bli_format.blf_data_map, - bip->__bli_format.blf_map_size)) + clean = 1; + for (i = 0; i < bip->bli_format_count; i++) { + if (!xfs_bitmap_empty(bip->bli_formats[i].blf_data_map, + bip->bli_formats[i].blf_map_size)) { + clean = 0; + break; + } + } + if (clean) xfs_buf_item_relse(bp); else atomic_dec(&bip->bli_refcount); diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index f7510bf..3edf5db 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -643,6 +643,7 @@ xfs_trans_binval( xfs_buf_t *bp) { xfs_buf_log_item_t *bip = bp->b_fspriv; + int i; ASSERT(bp->b_transp == tp); ASSERT(bip != NULL); @@ -670,8 +671,10 @@ xfs_trans_binval( bip->bli_flags &= ~(XFS_BLI_INODE_BUF | XFS_BLI_LOGGED | XFS_BLI_DIRTY); bip->__bli_format.blf_flags &= ~XFS_BLF_INODE_BUF; bip->__bli_format.blf_flags |= XFS_BLF_CANCEL; - memset((char *)(bip->__bli_format.blf_data_map), 0, - (bip->__bli_format.blf_map_size * sizeof(uint))); + for (i = 0; i < bip->bli_format_count; i++) { + memset(bip->bli_formats[i].blf_data_map, 0, + (bip->bli_formats[i].blf_map_size * sizeof(uint))); + } bip->bli_item.li_desc->lid_flags |= XFS_LID_DIRTY; tp->t_flags |= XFS_TRANS_DIRTY; } -- cgit v0.10.2 From ab7eac22008f044631c0a3f4be344ebc2cb0e266 Mon Sep 17 00:00:00 2001 From: Brian Foster Date: Fri, 21 Dec 2012 10:45:17 -0500 Subject: xfs: remove int casts from debug dquot soft limit timer asserts The int casts here make it easy to trigger an assert with a large soft limit. For example, set a >4TB soft limit on an empty volume to reproduce a (0 > -x) comparison due to an overflow of d_blk_softlimit. Signed-off-by: Brian Foster Reviewed-by: Ben Myers Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c index 5f53e75..8a59f85 100644 --- a/fs/xfs/xfs_qm_syscalls.c +++ b/fs/xfs/xfs_qm_syscalls.c @@ -784,11 +784,11 @@ xfs_qm_scall_getquota( (XFS_IS_OQUOTA_ENFORCED(mp) && (dst->d_flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)))) && dst->d_id != 0) { - if (((int) dst->d_bcount > (int) dst->d_blk_softlimit) && + if ((dst->d_bcount > dst->d_blk_softlimit) && (dst->d_blk_softlimit > 0)) { ASSERT(dst->d_btimer != 0); } - if (((int) dst->d_icount > (int) dst->d_ino_softlimit) && + if ((dst->d_icount > dst->d_ino_softlimit) && (dst->d_ino_softlimit > 0)) { ASSERT(dst->d_itimer != 0); } -- cgit v0.10.2 From 37f13561de6039b3a916d1510086030d097dea0f Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Thu, 10 Jan 2013 10:41:48 -0600 Subject: xfs: recalculate leaf entry pointer after compacting a dir2 block Dave Jones hit this assert when doing a compile on recent git, with CONFIG_XFS_DEBUG enabled: XFS: Assertion failed: (char *)dup - (char *)hdr == be16_to_cpu(*xfs_dir2_data_unused_tag_p(dup)), file: fs/xfs/xfs_dir2_data.c, line: 828 Upon further digging, the tag found by xfs_dir2_data_unused_tag_p(dup) contained "2" and not the proper offset, and I found that this value was changed after the memmoves under "Use a stale leaf for our new entry." in xfs_dir2_block_addname(), i.e. memmove(&blp[mid + 1], &blp[mid], (highstale - mid) * sizeof(*blp)); overwrote it. What has happened is that the previous call to xfs_dir2_block_compact() has rearranged things; it changes btp->count as well as the blp array. So after we make that call, we must recalculate the proper pointer to the leaf entries by making another call to xfs_dir2_block_leaf_p(). Dave provided a metadump image which led to a simple reproducer (create a particular filename in the affected directory) and this resolves the testcase as well as the bug on his live system. Thanks also to dchinner for looking at this one with me. Signed-off-by: Eric Sandeen Tested-by: Dave Jones Reviewed-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c index 7536faa..12afe07 100644 --- a/fs/xfs/xfs_dir2_block.c +++ b/fs/xfs/xfs_dir2_block.c @@ -355,10 +355,12 @@ xfs_dir2_block_addname( /* * If need to compact the leaf entries, do it now. */ - if (compact) + if (compact) { xfs_dir2_block_compact(tp, bp, hdr, btp, blp, &needlog, &lfloghigh, &lfloglow); - else if (btp->stale) { + /* recalculate blp post-compaction */ + blp = xfs_dir2_block_leaf_p(btp); + } else if (btp->stale) { /* * Set leaf logging boundaries to impossible state. * For the no-stale case they're set explicitly. -- cgit v0.10.2 From 7d1f9aeff1ee4a20b1aeb377dd0f579fe9647619 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 17 Jan 2013 19:25:45 -0800 Subject: Linux 3.8-rc4 diff --git a/Makefile b/Makefile index a1667c4..253a455 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 8 SUBLEVEL = 0 -EXTRAVERSION = -rc3 +EXTRAVERSION = -rc4 NAME = Terrified Chipmunk # *DOCUMENTATION* -- cgit v0.10.2