diff options
Diffstat (limited to 'arch/powerpc/platforms')
87 files changed, 1567 insertions, 1269 deletions
diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig index a392d12..6e287f1 100644 --- a/arch/powerpc/platforms/40x/Kconfig +++ b/arch/powerpc/platforms/40x/Kconfig @@ -20,7 +20,6 @@ config HOTFOOT bool "Hotfoot" depends on 40x default n - select 405EP select PPC40x_SIMPLE select PCI help @@ -105,9 +104,6 @@ config 405GP select IBM405_ERR51 select IBM_EMAC_ZMII -config 405EP - bool - config 405EX bool select IBM_EMAC_EMAC4 @@ -119,9 +115,6 @@ config 405EZ select IBM_EMAC_MAL_CLR_ICINTSTAT select IBM_EMAC_MAL_COMMON_ERR -config 405GPR - bool - config XILINX_VIRTEX bool select DEFAULT_UIMAGE @@ -145,7 +138,6 @@ config PPC4xx_GPIO bool "PPC4xx GPIO support" depends on 40x select ARCH_REQUIRE_GPIOLIB - select GENERIC_GPIO help Enable gpiolib support for ppc40x based boards diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig index 8abf6fb8..d6c7506 100644 --- a/arch/powerpc/platforms/44x/Kconfig +++ b/arch/powerpc/platforms/44x/Kconfig @@ -248,10 +248,17 @@ config PPC4xx_GPIO bool "PPC4xx GPIO support" depends on 44x select ARCH_REQUIRE_GPIOLIB - select GENERIC_GPIO help Enable gpiolib support for ppc440 based boards +config PPC4xx_OCM + bool "PPC4xx On Chip Memory (OCM) support" + depends on 4xx + select PPC_LIB_RHEAP + help + Enable OCM support for PowerPC 4xx platforms with on chip memory, + OCM provides the fast place for memory access to improve performance. + # 44x specific CPU modules, selected based on the board above. config 440EP bool @@ -266,6 +273,8 @@ config 440EPX select IBM_EMAC_EMAC4 select IBM_EMAC_RGMII select IBM_EMAC_ZMII + select USB_EHCI_BIG_ENDIAN_MMIO + select USB_EHCI_BIG_ENDIAN_DESC config 440GRX bool diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig index c169998..fc9c1cb 100644 --- a/arch/powerpc/platforms/512x/Kconfig +++ b/arch/powerpc/platforms/512x/Kconfig @@ -7,6 +7,8 @@ config PPC_MPC512x select PPC_PCI_CHOICE select FSL_PCI if PCI select ARCH_WANT_OPTIONAL_GPIOLIB + select USB_EHCI_BIG_ENDIAN_MMIO + select USB_EHCI_BIG_ENDIAN_DESC config MPC5121_ADS bool "Freescale MPC5121E ADS" @@ -15,16 +17,16 @@ config MPC5121_ADS help This option enables support for the MPC5121E ADS board. -config MPC5121_GENERIC - bool "Generic support for simple MPC5121 based boards" +config MPC512x_GENERIC + bool "Generic support for simple MPC512x based boards" depends on PPC_MPC512x select DEFAULT_UIMAGE help - This option enables support for simple MPC5121 based boards + This option enables support for simple MPC512x based boards which do not need custom platform specific setup. Compatible boards include: Protonic LVT base boards (ZANMCU - and VICVT2). + and VICVT2), Freescale MPC5125 Tower system. config PDM360NG bool "ifm PDM360NG board" diff --git a/arch/powerpc/platforms/512x/Makefile b/arch/powerpc/platforms/512x/Makefile index 4efc1c4..72fb934 100644 --- a/arch/powerpc/platforms/512x/Makefile +++ b/arch/powerpc/platforms/512x/Makefile @@ -3,5 +3,5 @@ # obj-y += clock.o mpc512x_shared.o obj-$(CONFIG_MPC5121_ADS) += mpc5121_ads.o mpc5121_ads_cpld.o -obj-$(CONFIG_MPC5121_GENERIC) += mpc5121_generic.o +obj-$(CONFIG_MPC512x_GENERIC) += mpc512x_generic.o obj-$(CONFIG_PDM360NG) += pdm360ng.o diff --git a/arch/powerpc/platforms/512x/clock.c b/arch/powerpc/platforms/512x/clock.c index 9f771e0..e504166 100644 --- a/arch/powerpc/platforms/512x/clock.c +++ b/arch/powerpc/platforms/512x/clock.c @@ -26,8 +26,11 @@ #include <linux/of_platform.h> #include <asm/mpc5xxx.h> +#include <asm/mpc5121.h> #include <asm/clk_interface.h> +#include "mpc512x.h" + #undef CLK_DEBUG static int clocks_initialized; @@ -122,7 +125,7 @@ struct mpc512x_clockctl { u32 dccr; /* DIU Clk Cnfg Reg */ }; -struct mpc512x_clockctl __iomem *clockctl; +static struct mpc512x_clockctl __iomem *clockctl; static int mpc5121_clk_enable(struct clk *clk) { @@ -184,7 +187,7 @@ static unsigned long spmf_mult(void) 36, 40, 44, 48, 52, 56, 60, 64 }; - int spmf = (clockctl->spmr >> 24) & 0xf; + int spmf = (in_be32(&clockctl->spmr) >> 24) & 0xf; return spmf_to_mult[spmf]; } @@ -206,7 +209,7 @@ static unsigned long sysdiv_div_x_2(void) 52, 56, 58, 62, 60, 64, 66, }; - int sysdiv = (clockctl->scfr2 >> 26) & 0x3f; + int sysdiv = (in_be32(&clockctl->scfr2) >> 26) & 0x3f; return sysdiv_to_div_x_2[sysdiv]; } @@ -230,7 +233,7 @@ static unsigned long sys_to_ref(unsigned long rate) static long ips_to_ref(unsigned long rate) { - int ips_div = (clockctl->scfr1 >> 23) & 0x7; + int ips_div = (in_be32(&clockctl->scfr1) >> 23) & 0x7; rate *= ips_div; /* csb_clk = ips_clk * ips_div */ rate *= 2; /* sys_clk = csb_clk * 2 */ @@ -284,7 +287,7 @@ static struct clk sys_clk = { static void diu_clk_calc(struct clk *clk) { - int diudiv_x_2 = clockctl->scfr1 & 0xff; + int diudiv_x_2 = in_be32(&clockctl->scfr1) & 0xff; unsigned long rate; rate = sys_clk.rate; @@ -311,7 +314,7 @@ static void half_clk_calc(struct clk *clk) static void generic_div_clk_calc(struct clk *clk) { - int div = (clockctl->scfr1 >> clk->div_shift) & 0x7; + int div = (in_be32(&clockctl->scfr1) >> clk->div_shift) & 0x7; clk->rate = clk->parent->rate / div; } @@ -329,7 +332,7 @@ static struct clk csb_clk = { static void e300_clk_calc(struct clk *clk) { - int spmf = (clockctl->spmr >> 16) & 0xf; + int spmf = (in_be32(&clockctl->spmr) >> 16) & 0xf; int ratex2 = clk->parent->rate * spmf; clk->rate = ratex2 / 2; @@ -551,7 +554,7 @@ static struct clk ac97_clk = { .calc = ac97_clk_calc, }; -struct clk *rate_clks[] = { +static struct clk *rate_clks[] = { &ref_clk, &sys_clk, &diu_clk, @@ -607,7 +610,7 @@ static void rate_clks_init(void) * There are two clk enable registers with 32 enable bits each * psc clocks and device clocks are all stored in dev_clks */ -struct clk dev_clks[2][32]; +static struct clk dev_clks[2][32]; /* * Given a psc number return the dev_clk @@ -648,12 +651,12 @@ static void psc_calc_rate(struct clk *clk, int pscnum, struct device_node *np) out_be32(&clockctl->pccr[pscnum], 0x00020000); out_be32(&clockctl->pccr[pscnum], 0x00030000); - if (clockctl->pccr[pscnum] & 0x80) { + if (in_be32(&clockctl->pccr[pscnum]) & 0x80) { clk->rate = spdif_rxclk.rate; return; } - switch ((clockctl->pccr[pscnum] >> 14) & 0x3) { + switch ((in_be32(&clockctl->pccr[pscnum]) >> 14) & 0x3) { case 0: mclk_src = sys_clk.rate; break; @@ -668,7 +671,7 @@ static void psc_calc_rate(struct clk *clk, int pscnum, struct device_node *np) break; } - mclk_div = ((clockctl->pccr[pscnum] >> 17) & 0x7fff) + 1; + mclk_div = ((in_be32(&clockctl->pccr[pscnum]) >> 17) & 0x7fff) + 1; clk->rate = mclk_src / mclk_div; } @@ -680,13 +683,17 @@ static void psc_calc_rate(struct clk *clk, int pscnum, struct device_node *np) static void psc_clks_init(void) { struct device_node *np; - const u32 *cell_index; struct platform_device *ofdev; + u32 reg; + const char *psc_compat; + + psc_compat = mpc512x_select_psc_compat(); + if (!psc_compat) + return; - for_each_compatible_node(np, NULL, "fsl,mpc5121-psc") { - cell_index = of_get_property(np, "cell-index", NULL); - if (cell_index) { - int pscnum = *cell_index; + for_each_compatible_node(np, NULL, psc_compat) { + if (!of_property_read_u32(np, "reg", ®)) { + int pscnum = (reg & 0xf00) >> 8; struct clk *clk = psc_dev_clk(pscnum); clk->flags = CLK_HAS_RATE | CLK_HAS_CTRL; @@ -696,7 +703,7 @@ static void psc_clks_init(void) * AC97 is special rate clock does * not go through normal path */ - if (strcmp("ac97", np->name) == 0) + if (of_device_is_compatible(np, "fsl,mpc5121-psc-ac97")) clk->rate = ac97_clk.rate; else psc_calc_rate(clk, pscnum, np); diff --git a/arch/powerpc/platforms/512x/mpc512x.h b/arch/powerpc/platforms/512x/mpc512x.h index c32b399..0a8e600 100644 --- a/arch/powerpc/platforms/512x/mpc512x.h +++ b/arch/powerpc/platforms/512x/mpc512x.h @@ -15,6 +15,7 @@ extern void __init mpc512x_init_IRQ(void); extern void __init mpc512x_init(void); extern int __init mpc5121_clk_init(void); void __init mpc512x_declare_of_platform_devices(void); +extern const char *mpc512x_select_psc_compat(void); extern void mpc512x_restart(char *cmd); #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) diff --git a/arch/powerpc/platforms/512x/mpc5121_generic.c b/arch/powerpc/platforms/512x/mpc512x_generic.c index ca1ca66..5fb919b 100644 --- a/arch/powerpc/platforms/512x/mpc5121_generic.c +++ b/arch/powerpc/platforms/512x/mpc512x_generic.c @@ -4,7 +4,7 @@ * Author: John Rigby, <jrigby@freescale.com> * * Description: - * MPC5121 SoC setup + * MPC512x SoC setup * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by @@ -28,20 +28,22 @@ */ static const char * const board[] __initconst = { "prt,prtlvt", + "fsl,mpc5125ads", + "ifm,ac14xx", NULL }; /* * Called very early, MMU is off, device-tree isn't unflattened */ -static int __init mpc5121_generic_probe(void) +static int __init mpc512x_generic_probe(void) { return of_flat_dt_match(of_get_flat_dt_root(), board); } -define_machine(mpc5121_generic) { - .name = "MPC5121 generic", - .probe = mpc5121_generic_probe, +define_machine(mpc512x_generic) { + .name = "MPC512x generic", + .probe = mpc512x_generic_probe, .init = mpc512x_init, .init_early = mpc512x_init_diu, .setup_arch = mpc512x_setup_diu, diff --git a/arch/powerpc/platforms/512x/mpc512x_shared.c b/arch/powerpc/platforms/512x/mpc512x_shared.c index c7f47cf..6eb94ab 100644 --- a/arch/powerpc/platforms/512x/mpc512x_shared.c +++ b/arch/powerpc/platforms/512x/mpc512x_shared.c @@ -172,12 +172,9 @@ static struct fsl_diu_shared_fb __attribute__ ((__aligned__(8))) diu_shared_fb; static inline void mpc512x_free_bootmem(struct page *page) { - __ClearPageReserved(page); BUG_ON(PageTail(page)); BUG_ON(atomic_read(&page->_count) > 1); - atomic_set(&page->_count, 1); - __free_page(page); - totalram_pages++; + free_reserved_page(page); } void mpc512x_release_bootmem(void) @@ -330,26 +327,34 @@ void __init mpc512x_init_IRQ(void) static struct of_device_id __initdata of_bus_ids[] = { { .compatible = "fsl,mpc5121-immr", }, { .compatible = "fsl,mpc5121-localbus", }, + { .compatible = "fsl,mpc5121-mbx", }, + { .compatible = "fsl,mpc5121-nfc", }, + { .compatible = "fsl,mpc5121-sram", }, + { .compatible = "fsl,mpc5121-pci", }, + { .compatible = "gpio-leds", }, {}, }; void __init mpc512x_declare_of_platform_devices(void) { - struct device_node *np; - if (of_platform_bus_probe(NULL, of_bus_ids, NULL)) printk(KERN_ERR __FILE__ ": " "Error while probing of_platform bus\n"); - - np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121-nfc"); - if (np) { - of_platform_device_create(np, NULL, NULL); - of_node_put(np); - } } #define DEFAULT_FIFO_SIZE 16 +const char *mpc512x_select_psc_compat(void) +{ + if (of_machine_is_compatible("fsl,mpc5121")) + return "fsl,mpc5121-psc"; + + if (of_machine_is_compatible("fsl,mpc5125")) + return "fsl,mpc5125-psc"; + + return NULL; +} + static unsigned int __init get_fifo_size(struct device_node *np, char *prop_name) { @@ -375,9 +380,16 @@ void __init mpc512x_psc_fifo_init(void) void __iomem *psc; unsigned int tx_fifo_size; unsigned int rx_fifo_size; + const char *psc_compat; int fifobase = 0; /* current fifo address in 32 bit words */ - for_each_compatible_node(np, NULL, "fsl,mpc5121-psc") { + psc_compat = mpc512x_select_psc_compat(); + if (!psc_compat) { + pr_err("%s: no compatible devices found\n", __func__); + return; + } + + for_each_compatible_node(np, NULL, psc_compat) { tx_fifo_size = get_fifo_size(np, "fsl,tx-fifo-size"); rx_fifo_size = get_fifo_size(np, "fsl,rx-fifo-size"); @@ -426,8 +438,38 @@ void __init mpc512x_psc_fifo_init(void) void __init mpc512x_init(void) { - mpc512x_declare_of_platform_devices(); mpc5121_clk_init(); + mpc512x_declare_of_platform_devices(); mpc512x_restart_init(); mpc512x_psc_fifo_init(); } + +/** + * mpc512x_cs_config - Setup chip select configuration + * @cs: chip select number + * @val: chip select configuration value + * + * Perform chip select configuration for devices on LocalPlus Bus. + * Intended to dynamically reconfigure the chip select parameters + * for configurable devices on the bus. + */ +int mpc512x_cs_config(unsigned int cs, u32 val) +{ + static struct mpc512x_lpc __iomem *lpc; + struct device_node *np; + + if (cs > 7) + return -EINVAL; + + if (!lpc) { + np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121-lpc"); + lpc = of_iomap(np, 0); + of_node_put(np); + if (!lpc) + return -ENOMEM; + } + + out_be32(&lpc->cs_cfg[cs], val); + return 0; +} +EXPORT_SYMBOL(mpc512x_cs_config); diff --git a/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c b/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c index f9f4537..be7b1aa 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c @@ -20,9 +20,9 @@ #include <asm/mpc52xx.h> #include <asm/time.h> -#include <sysdev/bestcomm/bestcomm.h> -#include <sysdev/bestcomm/bestcomm_priv.h> -#include <sysdev/bestcomm/gen_bd.h> +#include <linux/fsl/bestcomm/bestcomm.h> +#include <linux/fsl/bestcomm/bestcomm_priv.h> +#include <linux/fsl/bestcomm/gen_bd.h> MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>"); MODULE_DESCRIPTION("MPC5200 LocalPlus FIFO device driver"); diff --git a/arch/powerpc/platforms/82xx/km82xx.c b/arch/powerpc/platforms/82xx/km82xx.c index cf964e1..058cc18 100644 --- a/arch/powerpc/platforms/82xx/km82xx.c +++ b/arch/powerpc/platforms/82xx/km82xx.c @@ -18,11 +18,11 @@ #include <linux/fsl_devices.h> #include <linux/of_platform.h> -#include <asm/io.h> +#include <linux/io.h> #include <asm/cpm2.h> #include <asm/udbg.h> #include <asm/machdep.h> -#include <asm/time.h> +#include <linux/time.h> #include <asm/mpc8260.h> #include <asm/prom.h> @@ -36,7 +36,7 @@ static void __init km82xx_pic_init(void) struct device_node *np = of_find_compatible_node(NULL, NULL, "fsl,pq2-pic"); if (!np) { - printk(KERN_ERR "PIC init: can not find cpm-pic node\n"); + pr_err("PIC init: can not find cpm-pic node\n"); return; } diff --git a/arch/powerpc/platforms/82xx/pq2.c b/arch/powerpc/platforms/82xx/pq2.c index fb94d10..fc8b2d6 100644 --- a/arch/powerpc/platforms/82xx/pq2.c +++ b/arch/powerpc/platforms/82xx/pq2.c @@ -71,11 +71,11 @@ err: void __init pq2_init_pci(void) { - struct device_node *np = NULL; + struct device_node *np; ppc_md.pci_exclude_device = pq2_pci_exclude_device; - while ((np = of_find_compatible_node(np, NULL, "fsl,pq2-pci"))) + for_each_compatible_node(np, NULL, "fsl,pq2-pci") pq2_pci_add_bridge(np); } #endif diff --git a/arch/powerpc/platforms/83xx/km83xx.c b/arch/powerpc/platforms/83xx/km83xx.c index 89923d7..bf4c447 100644 --- a/arch/powerpc/platforms/83xx/km83xx.c +++ b/arch/powerpc/platforms/83xx/km83xx.c @@ -28,8 +28,8 @@ #include <linux/of_device.h> #include <linux/atomic.h> -#include <asm/time.h> -#include <asm/io.h> +#include <linux/time.h> +#include <linux/io.h> #include <asm/machdep.h> #include <asm/ipic.h> #include <asm/irq.h> @@ -43,6 +43,82 @@ #include "mpc83xx.h" #define SVR_REV(svr) (((svr) >> 0) & 0xFFFF) /* Revision field */ + +static void quirk_mpc8360e_qe_enet10(void) +{ + /* + * handle mpc8360E Erratum QE_ENET10: + * RGMII AC values do not meet the specification + */ + uint svid = mfspr(SPRN_SVR); + struct device_node *np_par; + struct resource res; + void __iomem *base; + int ret; + + np_par = of_find_node_by_name(NULL, "par_io"); + if (np_par == NULL) { + pr_warn("%s couldn;t find par_io node\n", __func__); + return; + } + /* Map Parallel I/O ports registers */ + ret = of_address_to_resource(np_par, 0, &res); + if (ret) { + pr_warn("%s couldn;t map par_io registers\n", __func__); + return; + } + + base = ioremap(res.start, res.end - res.start + 1); + + /* + * set output delay adjustments to default values according + * table 5 in Errata Rev. 5, 9/2011: + * + * write 0b01 to UCC1 bits 18:19 + * write 0b01 to UCC2 option 1 bits 4:5 + * write 0b01 to UCC2 option 2 bits 16:17 + */ + clrsetbits_be32((base + 0xa8), 0x0c00f000, 0x04005000); + + /* + * set output delay adjustments to default values according + * table 3-13 in Reference Manual Rev.3 05/2010: + * + * write 0b01 to UCC2 option 2 bits 16:17 + * write 0b0101 to UCC1 bits 20:23 + * write 0b0101 to UCC2 option 1 bits 24:27 + */ + clrsetbits_be32((base + 0xac), 0x0000cff0, 0x00004550); + + if (SVR_REV(svid) == 0x0021) { + /* + * UCC2 option 1: write 0b1010 to bits 24:27 + * at address IMMRBAR+0x14AC + */ + clrsetbits_be32((base + 0xac), 0x000000f0, 0x000000a0); + } else if (SVR_REV(svid) == 0x0020) { + /* + * UCC1: write 0b11 to bits 18:19 + * at address IMMRBAR+0x14A8 + */ + setbits32((base + 0xa8), 0x00003000); + + /* + * UCC2 option 1: write 0b11 to bits 4:5 + * at address IMMRBAR+0x14A8 + */ + setbits32((base + 0xa8), 0x0c000000); + + /* + * UCC2 option 2: write 0b11 to bits 16:17 + * at address IMMRBAR+0x14AC + */ + setbits32((base + 0xac), 0x0000c000); + } + iounmap(base); + of_node_put(np_par); +} + /* ************************************************************************ * * Setup the architecture @@ -72,84 +148,13 @@ static void __init mpc83xx_km_setup_arch(void) for_each_node_by_name(np, "ucc") par_io_of_config(np); - } - - np = of_find_compatible_node(NULL, "network", "ucc_geth"); - if (np != NULL) { - /* - * handle mpc8360E Erratum QE_ENET10: - * RGMII AC values do not meet the specification - */ - uint svid = mfspr(SPRN_SVR); - struct device_node *np_par; - struct resource res; - void __iomem *base; - int ret; - - np_par = of_find_node_by_name(NULL, "par_io"); - if (np_par == NULL) { - printk(KERN_WARNING "%s couldn;t find par_io node\n", - __func__); - return; - } - /* Map Parallel I/O ports registers */ - ret = of_address_to_resource(np_par, 0, &res); - if (ret) { - printk(KERN_WARNING "%s couldn;t map par_io registers\n", - __func__); - return; - } - - base = ioremap(res.start, res.end - res.start + 1); - - /* - * set output delay adjustments to default values according - * table 5 in Errata Rev. 5, 9/2011: - * - * write 0b01 to UCC1 bits 18:19 - * write 0b01 to UCC2 option 1 bits 4:5 - * write 0b01 to UCC2 option 2 bits 16:17 - */ - clrsetbits_be32((base + 0xa8), 0x0c00f000, 0x04005000); - /* - * set output delay adjustments to default values according - * table 3-13 in Reference Manual Rev.3 05/2010: - * - * write 0b01 to UCC2 option 2 bits 16:17 - * write 0b0101 to UCC1 bits 20:23 - * write 0b0101 to UCC2 option 1 bits 24:27 - */ - clrsetbits_be32((base + 0xac), 0x0000cff0, 0x00004550); - - if (SVR_REV(svid) == 0x0021) { - /* - * UCC2 option 1: write 0b1010 to bits 24:27 - * at address IMMRBAR+0x14AC - */ - clrsetbits_be32((base + 0xac), 0x000000f0, 0x000000a0); - } else if (SVR_REV(svid) == 0x0020) { - /* - * UCC1: write 0b11 to bits 18:19 - * at address IMMRBAR+0x14A8 - */ - setbits32((base + 0xa8), 0x00003000); - - /* - * UCC2 option 1: write 0b11 to bits 4:5 - * at address IMMRBAR+0x14A8 - */ - setbits32((base + 0xa8), 0x0c000000); - - /* - * UCC2 option 2: write 0b11 to bits 16:17 - * at address IMMRBAR+0x14AC - */ - setbits32((base + 0xac), 0x0000c000); + /* Only apply this quirk when par_io is available */ + np = of_find_compatible_node(NULL, "network", "ucc_geth"); + if (np != NULL) { + quirk_mpc8360e_qe_enet10(); + of_node_put(np); } - iounmap(base); - of_node_put(np_par); - of_node_put(np); } #endif /* CONFIG_QUICC_ENGINE */ } diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index 48a56fd..60afff1 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -217,12 +217,18 @@ config SBC8548 help This option enables support for the Wind River SBC8548 board +config PPA8548 + bool "Prodrive PPA8548" + help + This option enables support for the Prodrive PPA8548 board. + select DEFAULT_UIMAGE + select HAS_RAPIDIO + config GE_IMP3A bool "GE Intelligent Platforms IMP3A" select DEFAULT_UIMAGE select SWIOTLB select MMIO_NVRAM - select GENERIC_GPIO select ARCH_REQUIRE_GPIOLIB select GE_FPGA help @@ -278,6 +284,14 @@ config P4080_DS help This option enables support for the P4080 DS board +config SGY_CTS1000 + tristate "Servergy CTS-1000 support" + select GPIOLIB + select OF_GPIO + depends on P4080_DS + help + Enable this to support functionality in Servergy's CTS-1000 systems. + endif # PPC32 config P5020_DS @@ -355,7 +369,7 @@ config B4_QDS select PPC_E500MC select PHYS_64BIT select SWIOTLB - select GENERIC_GPIO + select GPIOLIB select ARCH_REQUIRE_GPIOLIB select HAS_RAPIDIO select PPC_EPAPR_HV_PIC diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile index e018200..05ed088 100644 --- a/arch/powerpc/platforms/85xx/Makefile +++ b/arch/powerpc/platforms/85xx/Makefile @@ -34,8 +34,10 @@ obj-$(CONFIG_B4_QDS) += b4_qds.o corenet_ds.o obj-$(CONFIG_STX_GP3) += stx_gp3.o obj-$(CONFIG_TQM85xx) += tqm85xx.o obj-$(CONFIG_SBC8548) += sbc8548.o +obj-$(CONFIG_PPA8548) += ppa8548.o obj-$(CONFIG_SOCRATES) += socrates.o socrates_fpga_pic.o obj-$(CONFIG_KSI8560) += ksi8560.o obj-$(CONFIG_XES_MPC85xx) += xes_mpc85xx.o obj-$(CONFIG_GE_IMP3A) += ge_imp3a.o obj-$(CONFIG_PPC_QEMU_E500) += qemu_e500.o +obj-$(CONFIG_SGY_CTS1000) += sgy_cts1000.o diff --git a/arch/powerpc/platforms/85xx/ppa8548.c b/arch/powerpc/platforms/85xx/ppa8548.c new file mode 100644 index 0000000..6a7704b --- /dev/null +++ b/arch/powerpc/platforms/85xx/ppa8548.c @@ -0,0 +1,98 @@ +/* + * ppa8548 setup and early boot code. + * + * Copyright 2009 Prodrive B.V.. + * + * By Stef van Os (see MAINTAINERS for contact information) + * + * Based on the SBC8548 support - Copyright 2007 Wind River Systems Inc. + * Based on the MPC8548CDS support - Copyright 2005 Freescale Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/stddef.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/reboot.h> +#include <linux/seq_file.h> +#include <linux/of_platform.h> + +#include <asm/machdep.h> +#include <asm/udbg.h> +#include <asm/mpic.h> + +#include <sysdev/fsl_soc.h> + +static void __init ppa8548_pic_init(void) +{ + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN, + 0, 256, " OpenPIC "); + BUG_ON(mpic == NULL); + mpic_init(mpic); +} + +/* + * Setup the architecture + */ +static void __init ppa8548_setup_arch(void) +{ + if (ppc_md.progress) + ppc_md.progress("ppa8548_setup_arch()", 0); +} + +static void ppa8548_show_cpuinfo(struct seq_file *m) +{ + uint32_t svid, phid1; + + svid = mfspr(SPRN_SVR); + + seq_printf(m, "Vendor\t\t: Prodrive B.V.\n"); + seq_printf(m, "SVR\t\t: 0x%x\n", svid); + + /* Display cpu Pll setting */ + phid1 = mfspr(SPRN_HID1); + seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); +} + +static struct of_device_id __initdata of_bus_ids[] = { + { .name = "soc", }, + { .type = "soc", }, + { .compatible = "simple-bus", }, + { .compatible = "gianfar", }, + { .compatible = "fsl,srio", }, + {}, +}; + +static int __init declare_of_platform_devices(void) +{ + of_platform_bus_probe(NULL, of_bus_ids, NULL); + + return 0; +} +machine_device_initcall(ppa8548, declare_of_platform_devices); + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init ppa8548_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "ppa8548"); +} + +define_machine(ppa8548) { + .name = "ppa8548", + .probe = ppa8548_probe, + .setup_arch = ppa8548_setup_arch, + .init_IRQ = ppa8548_pic_init, + .show_cpuinfo = ppa8548_show_cpuinfo, + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; diff --git a/arch/powerpc/platforms/85xx/sgy_cts1000.c b/arch/powerpc/platforms/85xx/sgy_cts1000.c new file mode 100644 index 0000000..7179726 --- /dev/null +++ b/arch/powerpc/platforms/85xx/sgy_cts1000.c @@ -0,0 +1,176 @@ +/* + * Servergy CTS-1000 Setup + * + * Maintained by Ben Collins <ben.c@servergy.com> + * + * Copyright 2012 by Servergy, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/platform_device.h> +#include <linux/device.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/of_gpio.h> +#include <linux/workqueue.h> +#include <linux/reboot.h> +#include <linux/interrupt.h> + +#include <asm/machdep.h> + +static struct device_node *halt_node; + +static struct of_device_id child_match[] = { + { + .compatible = "sgy,gpio-halt", + }, + {}, +}; + +static void gpio_halt_wfn(struct work_struct *work) +{ + /* Likely wont return */ + orderly_poweroff(true); +} +static DECLARE_WORK(gpio_halt_wq, gpio_halt_wfn); + +static void gpio_halt_cb(void) +{ + enum of_gpio_flags flags; + int trigger, gpio; + + if (!halt_node) + return; + + gpio = of_get_gpio_flags(halt_node, 0, &flags); + + if (!gpio_is_valid(gpio)) + return; + + trigger = (flags == OF_GPIO_ACTIVE_LOW); + + printk(KERN_INFO "gpio-halt: triggering GPIO.\n"); + + /* Probably wont return */ + gpio_set_value(gpio, trigger); +} + +/* This IRQ means someone pressed the power button and it is waiting for us + * to handle the shutdown/poweroff. */ +static irqreturn_t gpio_halt_irq(int irq, void *__data) +{ + printk(KERN_INFO "gpio-halt: shutdown due to power button IRQ.\n"); + schedule_work(&gpio_halt_wq); + + return IRQ_HANDLED; +}; + +static int gpio_halt_probe(struct platform_device *pdev) +{ + enum of_gpio_flags flags; + struct device_node *node = pdev->dev.of_node; + int gpio, err, irq; + int trigger; + + if (!node) + return -ENODEV; + + /* If there's no matching child, this isn't really an error */ + halt_node = of_find_matching_node(node, child_match); + if (!halt_node) + return 0; + + /* Technically we could just read the first one, but punish + * DT writers for invalid form. */ + if (of_gpio_count(halt_node) != 1) + return -EINVAL; + + /* Get the gpio number relative to the dynamic base. */ + gpio = of_get_gpio_flags(halt_node, 0, &flags); + if (!gpio_is_valid(gpio)) + return -EINVAL; + + err = gpio_request(gpio, "gpio-halt"); + if (err) { + printk(KERN_ERR "gpio-halt: error requesting GPIO %d.\n", + gpio); + halt_node = NULL; + return err; + } + + trigger = (flags == OF_GPIO_ACTIVE_LOW); + + gpio_direction_output(gpio, !trigger); + + /* Now get the IRQ which tells us when the power button is hit */ + irq = irq_of_parse_and_map(halt_node, 0); + err = request_irq(irq, gpio_halt_irq, IRQF_TRIGGER_RISING | + IRQF_TRIGGER_FALLING, "gpio-halt", halt_node); + if (err) { + printk(KERN_ERR "gpio-halt: error requesting IRQ %d for " + "GPIO %d.\n", irq, gpio); + gpio_free(gpio); + halt_node = NULL; + return err; + } + + /* Register our halt function */ + ppc_md.halt = gpio_halt_cb; + ppc_md.power_off = gpio_halt_cb; + + printk(KERN_INFO "gpio-halt: registered GPIO %d (%d trigger, %d" + " irq).\n", gpio, trigger, irq); + + return 0; +} + +static int gpio_halt_remove(struct platform_device *pdev) +{ + if (halt_node) { + int gpio = of_get_gpio(halt_node, 0); + int irq = irq_of_parse_and_map(halt_node, 0); + + free_irq(irq, halt_node); + + ppc_md.halt = NULL; + ppc_md.power_off = NULL; + + gpio_free(gpio); + + halt_node = NULL; + } + + return 0; +} + +static struct of_device_id gpio_halt_match[] = { + /* We match on the gpio bus itself and scan the children since they + * wont be matched against us. We know the bus wont match until it + * has been registered too. */ + { + .compatible = "fsl,qoriq-gpio", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, gpio_halt_match); + +static struct platform_driver gpio_halt_driver = { + .driver = { + .name = "gpio-halt", + .owner = THIS_MODULE, + .of_match_table = gpio_halt_match, + }, + .probe = gpio_halt_probe, + .remove = gpio_halt_remove, +}; + +module_platform_driver(gpio_halt_driver); + +MODULE_DESCRIPTION("Driver to support GPIO triggered system halt for Servergy CTS-1000 Systems."); +MODULE_VERSION("1.0"); +MODULE_AUTHOR("Ben Collins <ben.c@servergy.com>"); +MODULE_LICENSE("GPL"); diff --git a/arch/powerpc/platforms/85xx/t4240_qds.c b/arch/powerpc/platforms/85xx/t4240_qds.c index c649b48..c68baaa 100644 --- a/arch/powerpc/platforms/85xx/t4240_qds.c +++ b/arch/powerpc/platforms/85xx/t4240_qds.c @@ -5,8 +5,8 @@ * * Copyright 2012 Freescale Semiconductor Inc. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig index 7a6279e..1afd1e4 100644 --- a/arch/powerpc/platforms/86xx/Kconfig +++ b/arch/powerpc/platforms/86xx/Kconfig @@ -37,7 +37,6 @@ config GEF_PPC9A bool "GE PPC9A" select DEFAULT_UIMAGE select MMIO_NVRAM - select GENERIC_GPIO select ARCH_REQUIRE_GPIOLIB select GE_FPGA help @@ -47,7 +46,6 @@ config GEF_SBC310 bool "GE SBC310" select DEFAULT_UIMAGE select MMIO_NVRAM - select GENERIC_GPIO select ARCH_REQUIRE_GPIOLIB select GE_FPGA help @@ -57,7 +55,6 @@ config GEF_SBC610 bool "GE SBC610" select DEFAULT_UIMAGE select MMIO_NVRAM - select GENERIC_GPIO select ARCH_REQUIRE_GPIOLIB select GE_FPGA select HAS_RAPIDIO diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig index 1fb0b3c..8dec3c0 100644 --- a/arch/powerpc/platforms/8xx/Kconfig +++ b/arch/powerpc/platforms/8xx/Kconfig @@ -114,7 +114,6 @@ config 8xx_COPYBACK config 8xx_GPIO bool "GPIO API Support" - select GENERIC_GPIO select ARCH_REQUIRE_GPIOLIB help Saying Y here will cause the ports on an MPC8xx processor to be used diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig index 0cf4d6d..a1c5686 100644 --- a/arch/powerpc/platforms/Kconfig +++ b/arch/powerpc/platforms/Kconfig @@ -6,7 +6,6 @@ source "arch/powerpc/platforms/chrp/Kconfig" source "arch/powerpc/platforms/512x/Kconfig" source "arch/powerpc/platforms/52xx/Kconfig" source "arch/powerpc/platforms/powermac/Kconfig" -source "arch/powerpc/platforms/prep/Kconfig" source "arch/powerpc/platforms/maple/Kconfig" source "arch/powerpc/platforms/pasemi/Kconfig" source "arch/powerpc/platforms/ps3/Kconfig" @@ -150,7 +149,7 @@ config PPC_RTAS_DAEMON config RTAS_PROC bool "Proc interface to RTAS" - depends on PPC_RTAS + depends on PPC_RTAS && PROC_FS default y config RTAS_FLASH @@ -265,7 +264,7 @@ endmenu config PPC601_SYNC_FIX bool "Workarounds for PPC601 bugs" - depends on 6xx && (PPC_PREP || PPC_PMAC) + depends on 6xx && PPC_PMAC help Some versions of the PPC601 (the first PowerPC chip) have bugs which mean that extra synchronization instructions are required near @@ -335,7 +334,6 @@ config QUICC_ENGINE config QE_GPIO bool "QE GPIO support" depends on QUICC_ENGINE - select GENERIC_GPIO select ARCH_REQUIRE_GPIOLIB help Say Y here if you're going to use hardware that connects to the @@ -348,7 +346,6 @@ config CPM2 select PPC_LIB_RHEAP select PPC_PCI_CHOICE select ARCH_REQUIRE_GPIOLIB - select GENERIC_GPIO help The CPM2 (Communications Processor Module) is a coprocessor on embedded CPUs made by Freescale. Selecting this option means that @@ -383,12 +380,9 @@ config OF_RTC Uses information from the OF or flattened device tree to instantiate platform devices for direct mapped RTC chips like the DS1742 or DS1743. -source "arch/powerpc/sysdev/bestcomm/Kconfig" - config SIMPLE_GPIO bool "Support for simple, memory-mapped GPIO controllers" depends on PPC - select GENERIC_GPIO select ARCH_REQUIRE_GPIOLIB help Say Y here to support simple, memory-mapped GPIO controllers. @@ -399,7 +393,6 @@ config SIMPLE_GPIO config MCU_MPC8349EMITX bool "MPC8349E-mITX MCU driver" depends on I2C=y && PPC_83xx - select GENERIC_GPIO select ARCH_REQUIRE_GPIOLIB help Say Y here to enable soft power-off functionality on the Freescale diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 4943a65..57e32a3 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -76,6 +76,7 @@ config PPC_BOOK3E_64 bool "Embedded processors" select PPC_FPU # Make it a choice ? select PPC_SMP_MUXED_IPI + select PPC_DOORBELL endchoice @@ -123,9 +124,8 @@ config 6xx select PPC_HAVE_PMU_SUPPORT config POWER3 - bool depends on PPC64 && PPC_BOOK3S - default y if !POWER4_ONLY + def_bool y config POWER4 depends on PPC64 && PPC_BOOK3S @@ -144,8 +144,7 @@ config TUNE_CELL but somewhat slower on other machines. This option only changes the scheduling of instructions, not the selection of instructions itself, so the resulting kernel will keep running on all other - machines. When building a kernel that is supposed to run only - on Cell, you should also select the POWER4_ONLY option. + machines. # this is temp to handle compat with arch=ppc config 8xx @@ -285,6 +284,7 @@ config PPC_FSL_BOOK3E select FSL_EMB_PERFMON select PPC_SMP_MUXED_IPI select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64 + select PPC_DOORBELL default y if FSL_BOOKE config PTE_64BIT @@ -459,4 +459,8 @@ config NOT_COHERENT_CACHE config CHECK_CACHE_COHERENCY bool +config PPC_DOORBELL + bool + default n + endmenu diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig index 2e7ff0c..9978f59 100644 --- a/arch/powerpc/platforms/cell/Kconfig +++ b/arch/powerpc/platforms/cell/Kconfig @@ -113,34 +113,10 @@ config CBE_THERM default m depends on CBE_RAS && SPU_BASE -config CBE_CPUFREQ - tristate "CBE frequency scaling" - depends on CBE_RAS && CPU_FREQ - default m - help - This adds the cpufreq driver for Cell BE processors. - For details, take a look at <file:Documentation/cpu-freq/>. - If you don't have such processor, say N - -config CBE_CPUFREQ_PMI_ENABLE - bool "CBE frequency scaling using PMI interface" - depends on CBE_CPUFREQ && EXPERIMENTAL - default n - help - Select this, if you want to use the PMI interface - to switch frequencies. Using PMI, the - processor will not only be able to run at lower speed, - but also at lower core voltage. - -config CBE_CPUFREQ_PMI - tristate - depends on CBE_CPUFREQ_PMI_ENABLE - default CBE_CPUFREQ - config PPC_PMI tristate default y - depends on CBE_CPUFREQ_PMI || PPC_IBM_CELL_POWERBUTTON + depends on CPU_FREQ_CBE_PMI || PPC_IBM_CELL_POWERBUTTON help PMI (Platform Management Interrupt) is a way to communicate with the BMC (Baseboard Management Controller). diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile index a4a8935..fe053e7 100644 --- a/arch/powerpc/platforms/cell/Makefile +++ b/arch/powerpc/platforms/cell/Makefile @@ -5,9 +5,6 @@ obj-$(CONFIG_PPC_CELL_NATIVE) += iommu.o setup.o spider-pic.o \ obj-$(CONFIG_CBE_RAS) += ras.o obj-$(CONFIG_CBE_THERM) += cbe_thermal.o -obj-$(CONFIG_CBE_CPUFREQ_PMI) += cbe_cpufreq_pmi.o -obj-$(CONFIG_CBE_CPUFREQ) += cbe-cpufreq.o -cbe-cpufreq-y += cbe_cpufreq_pervasive.o cbe_cpufreq.o obj-$(CONFIG_CBE_CPUFREQ_SPU_GOVERNOR) += cpufreq_spudemand.o obj-$(CONFIG_PPC_IBM_CELL_POWERBUTTON) += cbe_powerbutton.o diff --git a/arch/powerpc/platforms/cell/beat_htab.c b/arch/powerpc/platforms/cell/beat_htab.c index 0f6f839..246e1d8 100644 --- a/arch/powerpc/platforms/cell/beat_htab.c +++ b/arch/powerpc/platforms/cell/beat_htab.c @@ -90,7 +90,7 @@ static inline unsigned int beat_read_mask(unsigned hpte_group) static long beat_lpar_hpte_insert(unsigned long hpte_group, unsigned long vpn, unsigned long pa, unsigned long rflags, unsigned long vflags, - int psize, int ssize) + int psize, int apsize, int ssize) { unsigned long lpar_rc; u64 hpte_v, hpte_r, slot; @@ -103,9 +103,9 @@ static long beat_lpar_hpte_insert(unsigned long hpte_group, "rflags=%lx, vflags=%lx, psize=%d)\n", hpte_group, va, pa, rflags, vflags, psize); - hpte_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M) | + hpte_v = hpte_encode_v(vpn, psize, apsize, MMU_SEGSIZE_256M) | vflags | HPTE_V_VALID; - hpte_r = hpte_encode_r(pa, psize) | rflags; + hpte_r = hpte_encode_r(pa, psize, apsize) | rflags; if (!(vflags & HPTE_V_BOLTED)) DBG_LOW(" hpte_v=%016lx, hpte_r=%016lx\n", hpte_v, hpte_r); @@ -191,7 +191,7 @@ static long beat_lpar_hpte_updatepp(unsigned long slot, u64 dummy0, dummy1; unsigned long want_v; - want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M); + want_v = hpte_encode_avpn(vpn, psize, MMU_SEGSIZE_256M); DBG_LOW(" update: " "avpnv=%016lx, slot=%016lx, psize: %d, newpp %016lx ... ", @@ -228,7 +228,7 @@ static long beat_lpar_hpte_find(unsigned long vpn, int psize) unsigned long want_v, hpte_v; hash = hpt_hash(vpn, mmu_psize_defs[psize].shift, MMU_SEGSIZE_256M); - want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M); + want_v = hpte_encode_avpn(vpn, psize, MMU_SEGSIZE_256M); for (j = 0; j < 2; j++) { slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; @@ -283,7 +283,7 @@ static void beat_lpar_hpte_invalidate(unsigned long slot, unsigned long vpn, DBG_LOW(" inval : slot=%lx, va=%016lx, psize: %d, local: %d\n", slot, va, psize, local); - want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M); + want_v = hpte_encode_avpn(vpn, psize, MMU_SEGSIZE_256M); raw_spin_lock_irqsave(&beat_htab_lock, flags); dummy1 = beat_lpar_hpte_getword0(slot); @@ -314,7 +314,7 @@ void __init hpte_init_beat(void) static long beat_lpar_hpte_insert_v3(unsigned long hpte_group, unsigned long vpn, unsigned long pa, unsigned long rflags, unsigned long vflags, - int psize, int ssize) + int psize, int apsize, int ssize) { unsigned long lpar_rc; u64 hpte_v, hpte_r, slot; @@ -327,9 +327,9 @@ static long beat_lpar_hpte_insert_v3(unsigned long hpte_group, "rflags=%lx, vflags=%lx, psize=%d)\n", hpte_group, vpn, pa, rflags, vflags, psize); - hpte_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M) | + hpte_v = hpte_encode_v(vpn, psize, apsize, MMU_SEGSIZE_256M) | vflags | HPTE_V_VALID; - hpte_r = hpte_encode_r(pa, psize) | rflags; + hpte_r = hpte_encode_r(pa, psize, apsize) | rflags; if (!(vflags & HPTE_V_BOLTED)) DBG_LOW(" hpte_v=%016lx, hpte_r=%016lx\n", hpte_v, hpte_r); @@ -372,8 +372,8 @@ static long beat_lpar_hpte_updatepp_v3(unsigned long slot, unsigned long want_v; unsigned long pss; - want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M); - pss = (psize == MMU_PAGE_4K) ? -1UL : mmu_psize_defs[psize].penc; + want_v = hpte_encode_avpn(vpn, psize, MMU_SEGSIZE_256M); + pss = (psize == MMU_PAGE_4K) ? -1UL : mmu_psize_defs[psize].penc[psize]; DBG_LOW(" update: " "avpnv=%016lx, slot=%016lx, psize: %d, newpp %016lx ... ", @@ -402,8 +402,8 @@ static void beat_lpar_hpte_invalidate_v3(unsigned long slot, unsigned long vpn, DBG_LOW(" inval : slot=%lx, vpn=%016lx, psize: %d, local: %d\n", slot, vpn, psize, local); - want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M); - pss = (psize == MMU_PAGE_4K) ? -1UL : mmu_psize_defs[psize].penc; + want_v = hpte_encode_avpn(vpn, psize, MMU_SEGSIZE_256M); + pss = (psize == MMU_PAGE_4K) ? -1UL : mmu_psize_defs[psize].penc[psize]; lpar_rc = beat_invalidate_htab_entry3(0, slot, want_v, pss); diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq.c b/arch/powerpc/platforms/cell/cbe_cpufreq.c deleted file mode 100644 index d4c39e3..0000000 --- a/arch/powerpc/platforms/cell/cbe_cpufreq.c +++ /dev/null @@ -1,209 +0,0 @@ -/* - * cpufreq driver for the cell processor - * - * (C) Copyright IBM Deutschland Entwicklung GmbH 2005-2007 - * - * Author: Christian Krafft <krafft@de.ibm.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * 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, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/cpufreq.h> -#include <linux/module.h> -#include <linux/of_platform.h> - -#include <asm/machdep.h> -#include <asm/prom.h> -#include <asm/cell-regs.h> -#include "cbe_cpufreq.h" - -static DEFINE_MUTEX(cbe_switch_mutex); - - -/* the CBE supports an 8 step frequency scaling */ -static struct cpufreq_frequency_table cbe_freqs[] = { - {1, 0}, - {2, 0}, - {3, 0}, - {4, 0}, - {5, 0}, - {6, 0}, - {8, 0}, - {10, 0}, - {0, CPUFREQ_TABLE_END}, -}; - -/* - * hardware specific functions - */ - -static int set_pmode(unsigned int cpu, unsigned int slow_mode) -{ - int rc; - - if (cbe_cpufreq_has_pmi) - rc = cbe_cpufreq_set_pmode_pmi(cpu, slow_mode); - else - rc = cbe_cpufreq_set_pmode(cpu, slow_mode); - - pr_debug("register contains slow mode %d\n", cbe_cpufreq_get_pmode(cpu)); - - return rc; -} - -/* - * cpufreq functions - */ - -static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy) -{ - const u32 *max_freqp; - u32 max_freq; - int i, cur_pmode; - struct device_node *cpu; - - cpu = of_get_cpu_node(policy->cpu, NULL); - - if (!cpu) - return -ENODEV; - - pr_debug("init cpufreq on CPU %d\n", policy->cpu); - - /* - * Let's check we can actually get to the CELL regs - */ - if (!cbe_get_cpu_pmd_regs(policy->cpu) || - !cbe_get_cpu_mic_tm_regs(policy->cpu)) { - pr_info("invalid CBE regs pointers for cpufreq\n"); - return -EINVAL; - } - - max_freqp = of_get_property(cpu, "clock-frequency", NULL); - - of_node_put(cpu); - - if (!max_freqp) - return -EINVAL; - - /* we need the freq in kHz */ - max_freq = *max_freqp / 1000; - - pr_debug("max clock-frequency is at %u kHz\n", max_freq); - pr_debug("initializing frequency table\n"); - - /* initialize frequency table */ - for (i=0; cbe_freqs[i].frequency!=CPUFREQ_TABLE_END; i++) { - cbe_freqs[i].frequency = max_freq / cbe_freqs[i].index; - pr_debug("%d: %d\n", i, cbe_freqs[i].frequency); - } - - /* if DEBUG is enabled set_pmode() measures the latency - * of a transition */ - policy->cpuinfo.transition_latency = 25000; - - cur_pmode = cbe_cpufreq_get_pmode(policy->cpu); - pr_debug("current pmode is at %d\n",cur_pmode); - - policy->cur = cbe_freqs[cur_pmode].frequency; - -#ifdef CONFIG_SMP - cpumask_copy(policy->cpus, cpu_sibling_mask(policy->cpu)); -#endif - - cpufreq_frequency_table_get_attr(cbe_freqs, policy->cpu); - - /* this ensures that policy->cpuinfo_min - * and policy->cpuinfo_max are set correctly */ - return cpufreq_frequency_table_cpuinfo(policy, cbe_freqs); -} - -static int cbe_cpufreq_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static int cbe_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, cbe_freqs); -} - -static int cbe_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - int rc; - struct cpufreq_freqs freqs; - unsigned int cbe_pmode_new; - - cpufreq_frequency_table_target(policy, - cbe_freqs, - target_freq, - relation, - &cbe_pmode_new); - - freqs.old = policy->cur; - freqs.new = cbe_freqs[cbe_pmode_new].frequency; - freqs.cpu = policy->cpu; - - mutex_lock(&cbe_switch_mutex); - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - pr_debug("setting frequency for cpu %d to %d kHz, " \ - "1/%d of max frequency\n", - policy->cpu, - cbe_freqs[cbe_pmode_new].frequency, - cbe_freqs[cbe_pmode_new].index); - - rc = set_pmode(policy->cpu, cbe_pmode_new); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - mutex_unlock(&cbe_switch_mutex); - - return rc; -} - -static struct cpufreq_driver cbe_cpufreq_driver = { - .verify = cbe_cpufreq_verify, - .target = cbe_cpufreq_target, - .init = cbe_cpufreq_cpu_init, - .exit = cbe_cpufreq_cpu_exit, - .name = "cbe-cpufreq", - .owner = THIS_MODULE, - .flags = CPUFREQ_CONST_LOOPS, -}; - -/* - * module init and destoy - */ - -static int __init cbe_cpufreq_init(void) -{ - if (!machine_is(cell)) - return -ENODEV; - - return cpufreq_register_driver(&cbe_cpufreq_driver); -} - -static void __exit cbe_cpufreq_exit(void) -{ - cpufreq_unregister_driver(&cbe_cpufreq_driver); -} - -module_init(cbe_cpufreq_init); -module_exit(cbe_cpufreq_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Christian Krafft <krafft@de.ibm.com>"); diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq.h b/arch/powerpc/platforms/cell/cbe_cpufreq.h deleted file mode 100644 index c1d86bf..0000000 --- a/arch/powerpc/platforms/cell/cbe_cpufreq.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * cbe_cpufreq.h - * - * This file contains the definitions used by the cbe_cpufreq driver. - * - * (C) Copyright IBM Deutschland Entwicklung GmbH 2005-2007 - * - * Author: Christian Krafft <krafft@de.ibm.com> - * - */ - -#include <linux/cpufreq.h> -#include <linux/types.h> - -int cbe_cpufreq_set_pmode(int cpu, unsigned int pmode); -int cbe_cpufreq_get_pmode(int cpu); - -int cbe_cpufreq_set_pmode_pmi(int cpu, unsigned int pmode); - -#if defined(CONFIG_CBE_CPUFREQ_PMI) || defined(CONFIG_CBE_CPUFREQ_PMI_MODULE) -extern bool cbe_cpufreq_has_pmi; -#else -#define cbe_cpufreq_has_pmi (0) -#endif diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c b/arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c deleted file mode 100644 index 20472e4..0000000 --- a/arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c +++ /dev/null @@ -1,115 +0,0 @@ -/* - * pervasive backend for the cbe_cpufreq driver - * - * This driver makes use of the pervasive unit to - * engage the desired frequency. - * - * (C) Copyright IBM Deutschland Entwicklung GmbH 2005-2007 - * - * Author: Christian Krafft <krafft@de.ibm.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * 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, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/time.h> -#include <asm/machdep.h> -#include <asm/hw_irq.h> -#include <asm/cell-regs.h> - -#include "cbe_cpufreq.h" - -/* to write to MIC register */ -static u64 MIC_Slow_Fast_Timer_table[] = { - [0 ... 7] = 0x007fc00000000000ull, -}; - -/* more values for the MIC */ -static u64 MIC_Slow_Next_Timer_table[] = { - 0x0000240000000000ull, - 0x0000268000000000ull, - 0x000029C000000000ull, - 0x00002D0000000000ull, - 0x0000300000000000ull, - 0x0000334000000000ull, - 0x000039C000000000ull, - 0x00003FC000000000ull, -}; - - -int cbe_cpufreq_set_pmode(int cpu, unsigned int pmode) -{ - struct cbe_pmd_regs __iomem *pmd_regs; - struct cbe_mic_tm_regs __iomem *mic_tm_regs; - unsigned long flags; - u64 value; -#ifdef DEBUG - long time; -#endif - - local_irq_save(flags); - - mic_tm_regs = cbe_get_cpu_mic_tm_regs(cpu); - pmd_regs = cbe_get_cpu_pmd_regs(cpu); - -#ifdef DEBUG - time = jiffies; -#endif - - out_be64(&mic_tm_regs->slow_fast_timer_0, MIC_Slow_Fast_Timer_table[pmode]); - out_be64(&mic_tm_regs->slow_fast_timer_1, MIC_Slow_Fast_Timer_table[pmode]); - - out_be64(&mic_tm_regs->slow_next_timer_0, MIC_Slow_Next_Timer_table[pmode]); - out_be64(&mic_tm_regs->slow_next_timer_1, MIC_Slow_Next_Timer_table[pmode]); - - value = in_be64(&pmd_regs->pmcr); - /* set bits to zero */ - value &= 0xFFFFFFFFFFFFFFF8ull; - /* set bits to next pmode */ - value |= pmode; - - out_be64(&pmd_regs->pmcr, value); - -#ifdef DEBUG - /* wait until new pmode appears in status register */ - value = in_be64(&pmd_regs->pmsr) & 0x07; - while (value != pmode) { - cpu_relax(); - value = in_be64(&pmd_regs->pmsr) & 0x07; - } - - time = jiffies - time; - time = jiffies_to_msecs(time); - pr_debug("had to wait %lu ms for a transition using " \ - "pervasive unit\n", time); -#endif - local_irq_restore(flags); - - return 0; -} - - -int cbe_cpufreq_get_pmode(int cpu) -{ - int ret; - struct cbe_pmd_regs __iomem *pmd_regs; - - pmd_regs = cbe_get_cpu_pmd_regs(cpu); - ret = in_be64(&pmd_regs->pmsr) & 0x07; - - return ret; -} - diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c b/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c deleted file mode 100644 index 60a07a4..0000000 --- a/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * pmi backend for the cbe_cpufreq driver - * - * (C) Copyright IBM Deutschland Entwicklung GmbH 2005-2007 - * - * Author: Christian Krafft <krafft@de.ibm.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * 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, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/timer.h> -#include <linux/module.h> -#include <linux/of_platform.h> - -#include <asm/processor.h> -#include <asm/prom.h> -#include <asm/pmi.h> -#include <asm/cell-regs.h> - -#ifdef DEBUG -#include <asm/time.h> -#endif - -#include "cbe_cpufreq.h" - -static u8 pmi_slow_mode_limit[MAX_CBE]; - -bool cbe_cpufreq_has_pmi = false; -EXPORT_SYMBOL_GPL(cbe_cpufreq_has_pmi); - -/* - * hardware specific functions - */ - -int cbe_cpufreq_set_pmode_pmi(int cpu, unsigned int pmode) -{ - int ret; - pmi_message_t pmi_msg; -#ifdef DEBUG - long time; -#endif - pmi_msg.type = PMI_TYPE_FREQ_CHANGE; - pmi_msg.data1 = cbe_cpu_to_node(cpu); - pmi_msg.data2 = pmode; - -#ifdef DEBUG - time = jiffies; -#endif - pmi_send_message(pmi_msg); - -#ifdef DEBUG - time = jiffies - time; - time = jiffies_to_msecs(time); - pr_debug("had to wait %lu ms for a transition using " \ - "PMI\n", time); -#endif - ret = pmi_msg.data2; - pr_debug("PMI returned slow mode %d\n", ret); - - return ret; -} -EXPORT_SYMBOL_GPL(cbe_cpufreq_set_pmode_pmi); - - -static void cbe_cpufreq_handle_pmi(pmi_message_t pmi_msg) -{ - u8 node, slow_mode; - - BUG_ON(pmi_msg.type != PMI_TYPE_FREQ_CHANGE); - - node = pmi_msg.data1; - slow_mode = pmi_msg.data2; - - pmi_slow_mode_limit[node] = slow_mode; - - pr_debug("cbe_handle_pmi: node: %d max_freq: %d\n", node, slow_mode); -} - -static int pmi_notifier(struct notifier_block *nb, - unsigned long event, void *data) -{ - struct cpufreq_policy *policy = data; - struct cpufreq_frequency_table *cbe_freqs; - u8 node; - - /* Should this really be called for CPUFREQ_ADJUST, CPUFREQ_INCOMPATIBLE - * and CPUFREQ_NOTIFY policy events?) - */ - if (event == CPUFREQ_START) - return 0; - - cbe_freqs = cpufreq_frequency_get_table(policy->cpu); - node = cbe_cpu_to_node(policy->cpu); - - pr_debug("got notified, event=%lu, node=%u\n", event, node); - - if (pmi_slow_mode_limit[node] != 0) { - pr_debug("limiting node %d to slow mode %d\n", - node, pmi_slow_mode_limit[node]); - - cpufreq_verify_within_limits(policy, 0, - - cbe_freqs[pmi_slow_mode_limit[node]].frequency); - } - - return 0; -} - -static struct notifier_block pmi_notifier_block = { - .notifier_call = pmi_notifier, -}; - -static struct pmi_handler cbe_pmi_handler = { - .type = PMI_TYPE_FREQ_CHANGE, - .handle_pmi_message = cbe_cpufreq_handle_pmi, -}; - - - -static int __init cbe_cpufreq_pmi_init(void) -{ - cbe_cpufreq_has_pmi = pmi_register_handler(&cbe_pmi_handler) == 0; - - if (!cbe_cpufreq_has_pmi) - return -ENODEV; - - cpufreq_register_notifier(&pmi_notifier_block, CPUFREQ_POLICY_NOTIFIER); - - return 0; -} - -static void __exit cbe_cpufreq_pmi_exit(void) -{ - cpufreq_unregister_notifier(&pmi_notifier_block, CPUFREQ_POLICY_NOTIFIER); - pmi_unregister_handler(&cbe_pmi_handler); -} - -module_init(cbe_cpufreq_pmi_init); -module_exit(cbe_cpufreq_pmi_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Christian Krafft <krafft@de.ibm.com>"); diff --git a/arch/powerpc/platforms/cell/celleb_scc_sio.c b/arch/powerpc/platforms/cell/celleb_scc_sio.c index 3a16c5b..9c339ec 100644 --- a/arch/powerpc/platforms/cell/celleb_scc_sio.c +++ b/arch/powerpc/platforms/cell/celleb_scc_sio.c @@ -42,14 +42,13 @@ static struct { static int __init txx9_serial_init(void) { extern int early_serial_txx9_setup(struct uart_port *port); - struct device_node *node = NULL; + struct device_node *node; int i; struct uart_port req; struct of_irq irq; struct resource res; - while ((node = of_find_compatible_node(node, - "serial", "toshiba,sio-scc")) != NULL) { + for_each_compatible_node(node, "serial", "toshiba,sio-scc") { for (i = 0; i < ARRAY_SIZE(txx9_scc_tab); i++) { if (!(txx9_serial_bitmap & (1<<i))) continue; diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index e56bb65..946306b 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -550,7 +550,7 @@ static struct iommu_table *cell_get_iommu_table(struct device *dev) */ iommu = cell_iommu_for_node(dev_to_node(dev)); if (iommu == NULL || list_empty(&iommu->windows)) { - printk(KERN_ERR "iommu: missing iommu for %s (node %d)\n", + dev_err(dev, "iommu: missing iommu for %s (node %d)\n", of_node_full_name(dev->of_node), dev_to_node(dev)); return NULL; } diff --git a/arch/powerpc/platforms/cell/pmu.c b/arch/powerpc/platforms/cell/pmu.c index 59c1a16..348a27b 100644 --- a/arch/powerpc/platforms/cell/pmu.c +++ b/arch/powerpc/platforms/cell/pmu.c @@ -382,7 +382,7 @@ static int __init cbe_init_pm_irq(void) unsigned int irq; int rc, node; - for_each_node(node) { + for_each_online_node(node) { irq = irq_create_mapping(NULL, IIC_IRQ_IOEX_PMI | (node << IIC_IRQ_NODE_SHIFT)); if (irq == NO_IRQ) { diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index 8b12139..f85db3a 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -715,7 +715,7 @@ static ssize_t spu_stat_show(struct device *dev, spu->stats.libassist); } -static DEVICE_ATTR(stat, 0644, spu_stat_show, NULL); +static DEVICE_ATTR(stat, 0444, spu_stat_show, NULL); #ifdef CONFIG_KEXEC diff --git a/arch/powerpc/platforms/cell/spu_callbacks.c b/arch/powerpc/platforms/cell/spu_callbacks.c index 75d6133..b0ec78e 100644 --- a/arch/powerpc/platforms/cell/spu_callbacks.c +++ b/arch/powerpc/platforms/cell/spu_callbacks.c @@ -60,13 +60,12 @@ long spu_sys_callback(struct spu_syscall_block *s) syscall = spu_syscall_table[s->nr_ret]; -#ifdef DEBUG - print_symbol(KERN_DEBUG "SPU-syscall %s:", (unsigned long)syscall); - printk("syscall%ld(%lx, %lx, %lx, %lx, %lx, %lx)\n", - s->nr_ret, - s->parm[0], s->parm[1], s->parm[2], - s->parm[3], s->parm[4], s->parm[5]); -#endif + pr_debug("SPU-syscall " + "%pSR:syscall%lld(%llx, %llx, %llx, %llx, %llx, %llx)\n", + syscall, + s->nr_ret, + s->parm[0], s->parm[1], s->parm[2], + s->parm[3], s->parm[4], s->parm[5]); return syscall(s->parm[0], s->parm[1], s->parm[2], s->parm[3], s->parm[4], s->parm[5]); diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c index 657e3f2..c9500ea 100644 --- a/arch/powerpc/platforms/cell/spufs/coredump.c +++ b/arch/powerpc/platforms/cell/spufs/coredump.c @@ -111,7 +111,7 @@ static int match_context(const void *v, struct file *file, unsigned fd) struct spu_context *ctx; if (file->f_op != &spufs_context_fops) return 0; - ctx = SPUFS_I(file->f_dentry->d_inode)->i_ctx; + ctx = SPUFS_I(file_inode(file))->i_ctx; if (ctx->flags & SPU_CREATE_NOSCHED) return 0; return fd + 1; @@ -137,7 +137,7 @@ static struct spu_context *coredump_next_context(int *fd) return NULL; *fd = n - 1; file = fcheck(*fd); - return SPUFS_I(file->f_dentry->d_inode)->i_ctx; + return SPUFS_I(file_inode(file))->i_ctx; } int spufs_coredump_extra_notes_size(void) diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index 0cfece4..9098692 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -149,7 +149,6 @@ static int __fops ## _open(struct inode *inode, struct file *file) \ return spufs_attr_open(inode, file, __get, __set, __fmt); \ } \ static const struct file_operations __fops = { \ - .owner = THIS_MODULE, \ .open = __fops ## _open, \ .release = spufs_attr_release, \ .read = spufs_attr_read, \ @@ -352,7 +351,7 @@ static unsigned long spufs_get_unmapped_area(struct file *file, /* Else, try to obtain a 64K pages slice */ return slice_get_unmapped_area(addr, len, flags, - MMU_PAGE_64K, 1, 0); + MMU_PAGE_64K, 1); } #endif /* CONFIG_SPU_FS_64K_LS */ @@ -1852,7 +1851,7 @@ out: static int spufs_mfc_fsync(struct file *file, loff_t start, loff_t end, int datasync) { - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = file_inode(file); int err = filemap_write_and_wait_range(inode->i_mapping, start, end); if (!err) { mutex_lock(&inode->i_mutex); @@ -2501,7 +2500,7 @@ static int switch_log_sprint(struct spu_context *ctx, char *tbuf, int n) static ssize_t spufs_switch_log_read(struct file *file, char __user *buf, size_t len, loff_t *ppos) { - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = file_inode(file); struct spu_context *ctx = SPUFS_I(inode)->i_ctx; int error = 0, cnt = 0; @@ -2571,7 +2570,7 @@ static ssize_t spufs_switch_log_read(struct file *file, char __user *buf, static unsigned int spufs_switch_log_poll(struct file *file, poll_table *wait) { - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = file_inode(file); struct spu_context *ctx = SPUFS_I(inode)->i_ctx; unsigned int mask = 0; int rc; @@ -2591,7 +2590,6 @@ static unsigned int spufs_switch_log_poll(struct file *file, poll_table *wait) } static const struct file_operations spufs_switch_log_fops = { - .owner = THIS_MODULE, .open = spufs_switch_log_open, .read = spufs_switch_log_read, .poll = spufs_switch_log_poll, diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index dba1ce2..35f77a4 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -99,6 +99,7 @@ spufs_new_inode(struct super_block *sb, umode_t mode) if (!inode) goto out; + inode->i_ino = get_next_ino(); inode->i_mode = mode; inode->i_uid = current_fsuid(); inode->i_gid = current_fsgid(); @@ -199,37 +200,18 @@ static int spufs_fill_dir(struct dentry *dir, const struct spufs_tree_descr *files, umode_t mode, struct spu_context *ctx) { - struct dentry *dentry, *tmp; - int ret; - while (files->name && files->name[0]) { - ret = -ENOMEM; - dentry = d_alloc_name(dir, files->name); + int ret; + struct dentry *dentry = d_alloc_name(dir, files->name); if (!dentry) - goto out; + return -ENOMEM; ret = spufs_new_file(dir->d_sb, dentry, files->ops, files->mode & mode, files->size, ctx); if (ret) - goto out; + return ret; files++; } return 0; -out: - /* - * remove all children from dir. dir->inode is not set so don't - * just simply use spufs_prune_dir() and panic afterwards :) - * dput() looks like it will do the right thing: - * - dec parent's ref counter - * - remove child from parent's child list - * - free child's inode if possible - * - free child - */ - list_for_each_entry_safe(dentry, tmp, &dir->d_subdirs, d_u.d_child) { - dput(dentry); - } - - shrink_dcache_parent(dir); - return ret; } static int spufs_dir_close(struct inode *inode, struct file *file) @@ -269,10 +251,9 @@ spufs_mkdir(struct inode *dir, struct dentry *dentry, unsigned int flags, struct inode *inode; struct spu_context *ctx; - ret = -ENOSPC; inode = spufs_new_inode(dir->i_sb, mode | S_IFDIR); if (!inode) - goto out; + return -ENOSPC; if (dir->i_mode & S_ISGID) { inode->i_gid = dir->i_gid; @@ -280,40 +261,38 @@ spufs_mkdir(struct inode *dir, struct dentry *dentry, unsigned int flags, } ctx = alloc_spu_context(SPUFS_I(dir)->i_gang); /* XXX gang */ SPUFS_I(inode)->i_ctx = ctx; - if (!ctx) - goto out_iput; + if (!ctx) { + iput(inode); + return -ENOSPC; + } ctx->flags = flags; inode->i_op = &simple_dir_inode_operations; inode->i_fop = &simple_dir_operations; + + mutex_lock(&inode->i_mutex); + + dget(dentry); + inc_nlink(dir); + inc_nlink(inode); + + d_instantiate(dentry, inode); + if (flags & SPU_CREATE_NOSCHED) ret = spufs_fill_dir(dentry, spufs_dir_nosched_contents, mode, ctx); else ret = spufs_fill_dir(dentry, spufs_dir_contents, mode, ctx); - if (ret) - goto out_free_ctx; - - if (spufs_get_sb_info(dir->i_sb)->debug) + if (!ret && spufs_get_sb_info(dir->i_sb)->debug) ret = spufs_fill_dir(dentry, spufs_dir_debug_contents, mode, ctx); if (ret) - goto out_free_ctx; + spufs_rmdir(dir, dentry); - d_instantiate(dentry, inode); - dget(dentry); - inc_nlink(dir); - inc_nlink(dentry->d_inode); - goto out; + mutex_unlock(&inode->i_mutex); -out_free_ctx: - spu_forget(ctx); - put_spu_context(ctx); -out_iput: - iput(inode); -out: return ret; } @@ -368,7 +347,7 @@ spufs_assert_affinity(unsigned int flags, struct spu_gang *gang, return ERR_PTR(-EINVAL); neighbor = get_spu_context( - SPUFS_I(filp->f_dentry->d_inode)->i_ctx); + SPUFS_I(file_inode(filp))->i_ctx); if (!list_empty(&neighbor->aff_list) && !(neighbor->aff_head) && !list_is_last(&neighbor->aff_list, &gang->aff_list_head) && @@ -771,6 +750,7 @@ static struct file_system_type spufs_type = { .mount = spufs_mount, .kill_sb = kill_litter_super, }; +MODULE_ALIAS_FS("spufs"); static int __init spufs_init(void) { diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 25db92a..4931838 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -24,6 +24,7 @@ #include <linux/errno.h> #include <linux/sched.h> +#include <linux/sched/rt.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/slab.h> diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c index baee994..b045fdd 100644 --- a/arch/powerpc/platforms/cell/spufs/syscalls.c +++ b/arch/powerpc/platforms/cell/spufs/syscalls.c @@ -47,7 +47,7 @@ static long do_spu_run(struct file *filp, if (filp->f_op != &spufs_context_fops) goto out; - i = SPUFS_I(filp->f_path.dentry->d_inode); + i = SPUFS_I(file_inode(filp)); ret = spufs_run_spu(i->i_ctx, &npc, &status); if (put_user(npc, unpc)) diff --git a/arch/powerpc/platforms/chrp/pegasos_eth.c b/arch/powerpc/platforms/chrp/pegasos_eth.c index 039fc8e..2b4dc6a 100644 --- a/arch/powerpc/platforms/chrp/pegasos_eth.c +++ b/arch/powerpc/platforms/chrp/pegasos_eth.c @@ -47,6 +47,25 @@ static struct platform_device mv643xx_eth_shared_device = { .resource = mv643xx_eth_shared_resources, }; +/* + * The orion mdio driver only covers shared + 0x4 up to shared + 0x84 - 1 + */ +static struct resource mv643xx_eth_mvmdio_resources[] = { + [0] = { + .name = "ethernet mdio base", + .start = 0xf1000000 + MV643XX_ETH_SHARED_REGS + 0x4, + .end = 0xf1000000 + MV643XX_ETH_SHARED_REGS + 0x83, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device mv643xx_eth_mvmdio_device = { + .name = "orion-mdio", + .id = -1, + .num_resources = ARRAY_SIZE(mv643xx_eth_mvmdio_resources), + .resource = mv643xx_eth_shared_resources, +}; + static struct resource mv643xx_eth_port1_resources[] = { [0] = { .name = "eth port1 irq", @@ -82,6 +101,7 @@ static struct platform_device eth_port1_device = { static struct platform_device *mv643xx_eth_pd_devs[] __initdata = { &mv643xx_eth_shared_device, + &mv643xx_eth_mvmdio_device, ð_port1_device, }; diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig b/arch/powerpc/platforms/embedded6xx/Kconfig index 5a8f50a9..302ba43 100644 --- a/arch/powerpc/platforms/embedded6xx/Kconfig +++ b/arch/powerpc/platforms/embedded6xx/Kconfig @@ -9,7 +9,6 @@ config LINKSTATION select FSL_SOC select PPC_UDBG_16550 if SERIAL_8250 select DEFAULT_UIMAGE - select MPC10X_OPENPIC select MPC10X_BRIDGE help Select LINKSTATION if configuring for one of PPC- (MPC8241) @@ -24,7 +23,6 @@ config STORCENTER select MPIC select FSL_SOC select PPC_UDBG_16550 if SERIAL_8250 - select MPC10X_OPENPIC select MPC10X_BRIDGE help Select STORCENTER if configuring for the iomega StorCenter @@ -84,9 +82,6 @@ config MV64X60 select PPC_INDIRECT_PCI select CHECK_CACHE_COHERENCY -config MPC10X_OPENPIC - bool - config GAMECUBE_COMMON bool diff --git a/arch/powerpc/platforms/embedded6xx/mpc10x.h b/arch/powerpc/platforms/embedded6xx/mpc10x.h index b30a6a3..b290b63 100644 --- a/arch/powerpc/platforms/embedded6xx/mpc10x.h +++ b/arch/powerpc/platforms/embedded6xx/mpc10x.h @@ -81,17 +81,6 @@ #define MPC10X_MAPB_PCI_MEM_OFFSET (MPC10X_MAPB_ISA_MEM_BASE - \ MPC10X_MAPB_PCI_MEM_START) -/* Set hose members to values appropriate for the mem map used */ -#define MPC10X_SETUP_HOSE(hose, map) { \ - (hose)->pci_mem_offset = MPC10X_MAP##map##_PCI_MEM_OFFSET; \ - (hose)->io_space.start = MPC10X_MAP##map##_PCI_IO_START; \ - (hose)->io_space.end = MPC10X_MAP##map##_PCI_IO_END; \ - (hose)->mem_space.start = MPC10X_MAP##map##_PCI_MEM_START; \ - (hose)->mem_space.end = MPC10X_MAP##map##_PCI_MEM_END; \ - (hose)->io_base_virt = (void *)MPC10X_MAP##map##_ISA_IO_BASE; \ -} - - /* Miscellaneous Configuration register offsets */ #define MPC10X_CFG_PIR_REG 0x09 #define MPC10X_CFG_PIR_HOST_BRIDGE 0x00 diff --git a/arch/powerpc/platforms/pasemi/cpufreq.c b/arch/powerpc/platforms/pasemi/cpufreq.c index 890f30e..be1e795 100644 --- a/arch/powerpc/platforms/pasemi/cpufreq.c +++ b/arch/powerpc/platforms/pasemi/cpufreq.c @@ -273,10 +273,9 @@ static int pas_cpufreq_target(struct cpufreq_policy *policy, freqs.old = policy->cur; freqs.new = pas_freqs[pas_astate_new].frequency; - freqs.cpu = policy->cpu; mutex_lock(&pas_switch_mutex); - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); pr_debug("setting frequency for cpu %d to %d kHz, 1/%d of max frequency\n", policy->cpu, @@ -288,7 +287,7 @@ static int pas_cpufreq_target(struct cpufreq_policy *policy, for_each_online_cpu(i) set_astate(i, pas_astate_new); - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); mutex_unlock(&pas_switch_mutex); ppc_proc_freq = freqs.new * 1000ul; diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c index 311b804..3104fad 100644 --- a/arch/powerpc/platforms/powermac/cpufreq_32.c +++ b/arch/powerpc/platforms/powermac/cpufreq_32.c @@ -335,7 +335,8 @@ static int pmu_set_cpu_speed(int low_speed) return 0; } -static int do_set_cpu_speed(int speed_mode, int notify) +static int do_set_cpu_speed(struct cpufreq_policy *policy, int speed_mode, + int notify) { struct cpufreq_freqs freqs; unsigned long l3cr; @@ -343,13 +344,12 @@ static int do_set_cpu_speed(int speed_mode, int notify) freqs.old = cur_freq; freqs.new = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq; - freqs.cpu = smp_processor_id(); if (freqs.old == freqs.new) return 0; if (notify) - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); if (speed_mode == CPUFREQ_LOW && cpu_has_feature(CPU_FTR_L3CR)) { l3cr = _get_L3CR(); @@ -366,7 +366,7 @@ static int do_set_cpu_speed(int speed_mode, int notify) _set_L3CR(prev_l3cr); } if (notify) - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); cur_freq = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq; return 0; @@ -393,7 +393,7 @@ static int pmac_cpufreq_target( struct cpufreq_policy *policy, target_freq, relation, &newstate)) return -EINVAL; - rc = do_set_cpu_speed(newstate, 1); + rc = do_set_cpu_speed(policy, newstate, 1); ppc_proc_freq = cur_freq * 1000ul; return rc; @@ -442,7 +442,7 @@ static int pmac_cpufreq_suspend(struct cpufreq_policy *policy) no_schedule = 1; sleep_freq = cur_freq; if (cur_freq == low_freq && !is_pmu_based) - do_set_cpu_speed(CPUFREQ_HIGH, 0); + do_set_cpu_speed(policy, CPUFREQ_HIGH, 0); return 0; } @@ -458,7 +458,7 @@ static int pmac_cpufreq_resume(struct cpufreq_policy *policy) * is that we force a switch to whatever it was, which is * probably high speed due to our suspend() routine */ - do_set_cpu_speed(sleep_freq == low_freq ? + do_set_cpu_speed(policy, sleep_freq == low_freq ? CPUFREQ_LOW : CPUFREQ_HIGH, 0); ppc_proc_freq = cur_freq * 1000ul; diff --git a/arch/powerpc/platforms/powermac/cpufreq_64.c b/arch/powerpc/platforms/powermac/cpufreq_64.c index 9650c60..7ba4234 100644 --- a/arch/powerpc/platforms/powermac/cpufreq_64.c +++ b/arch/powerpc/platforms/powermac/cpufreq_64.c @@ -339,11 +339,10 @@ static int g5_cpufreq_target(struct cpufreq_policy *policy, freqs.old = g5_cpu_freqs[g5_pmode_cur].frequency; freqs.new = g5_cpu_freqs[newstate].frequency; - freqs.cpu = 0; - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); rc = g5_switch_freq(newstate); - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); mutex_unlock(&g5_switch_mutex); diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c index 2b8af75..cf7009b 100644 --- a/arch/powerpc/platforms/powermac/pci.c +++ b/arch/powerpc/platforms/powermac/pci.c @@ -824,6 +824,7 @@ static void __init parse_region_decode(struct pci_controller *hose, hose->mem_resources[cur].name = hose->dn->full_name; hose->mem_resources[cur].start = base; hose->mem_resources[cur].end = end; + hose->mem_offset[cur] = 0; DBG(" %d: 0x%08lx-0x%08lx\n", cur, base, end); } else { DBG(" : -0x%08lx\n", end); @@ -866,7 +867,6 @@ static void __init setup_u3_ht(struct pci_controller* hose) hose->io_resource.start = 0; hose->io_resource.end = 0x003fffff; hose->io_resource.flags = IORESOURCE_IO; - hose->pci_mem_offset = 0; hose->first_busno = 0; hose->last_busno = 0xef; diff --git a/arch/powerpc/platforms/powernv/Kconfig b/arch/powerpc/platforms/powernv/Kconfig index 74fea5c..c24684c 100644 --- a/arch/powerpc/platforms/powernv/Kconfig +++ b/arch/powerpc/platforms/powernv/Kconfig @@ -6,6 +6,12 @@ config PPC_POWERNV select PPC_ICP_NATIVE select PPC_P7_NAP select PPC_PCI_CHOICE if EMBEDDED + select EPAPR_BOOT + default y + +config POWERNV_MSI + bool "Support PCI MSI on PowerNV platform" + depends on PCI_MSI default y config PPC_POWERNV_RTAS diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S index 3bb07e5..6fabe92 100644 --- a/arch/powerpc/platforms/powernv/opal-wrappers.S +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S @@ -107,3 +107,4 @@ OPAL_CALL(opal_pci_mask_pe_error, OPAL_PCI_MASK_PE_ERROR); OPAL_CALL(opal_set_slot_led_status, OPAL_SET_SLOT_LED_STATUS); OPAL_CALL(opal_get_epow_status, OPAL_GET_EPOW_STATUS); OPAL_CALL(opal_set_system_attention_led, OPAL_SET_SYSTEM_ATTENTION_LED); +OPAL_CALL(opal_pci_msi_eoi, OPAL_PCI_MSI_EOI); diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c index aaa0dba..628c564 100644 --- a/arch/powerpc/platforms/powernv/opal.c +++ b/arch/powerpc/platforms/powernv/opal.c @@ -15,6 +15,7 @@ #include <linux/of.h> #include <linux/of_platform.h> #include <linux/interrupt.h> +#include <linux/slab.h> #include <asm/opal.h> #include <asm/firmware.h> @@ -28,13 +29,14 @@ struct opal { static struct device_node *opal_node; static DEFINE_SPINLOCK(opal_write_lock); extern u64 opal_mc_secondary_handler[]; +static unsigned int *opal_irqs; +static unsigned int opal_irq_count; int __init early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data) { const void *basep, *entryp; unsigned long basesz, entrysz; - u64 glue; if (depth != 1 || strcmp(uname, "ibm,opal") != 0) return 0; @@ -54,13 +56,27 @@ int __init early_init_dt_scan_opal(unsigned long node, opal.entry, entryp, entrysz); powerpc_firmware_features |= FW_FEATURE_OPAL; - if (of_flat_dt_is_compatible(node, "ibm,opal-v2")) { + if (of_flat_dt_is_compatible(node, "ibm,opal-v3")) { + powerpc_firmware_features |= FW_FEATURE_OPALv2; + powerpc_firmware_features |= FW_FEATURE_OPALv3; + printk("OPAL V3 detected !\n"); + } else if (of_flat_dt_is_compatible(node, "ibm,opal-v2")) { powerpc_firmware_features |= FW_FEATURE_OPALv2; printk("OPAL V2 detected !\n"); } else { printk("OPAL V1 detected !\n"); } + return 1; +} + +static int __init opal_register_exception_handlers(void) +{ + u64 glue; + + if (!(powerpc_firmware_features & FW_FEATURE_OPAL)) + return -ENODEV; + /* Hookup some exception handlers. We use the fwnmi area at 0x7000 * to provide the glue space to OPAL */ @@ -74,9 +90,11 @@ int __init early_init_dt_scan_opal(unsigned long node, glue += 128; opal_register_exception_handler(OPAL_SOFTPATCH_HANDLER, 0, glue); - return 1; + return 0; } +early_initcall(opal_register_exception_handlers); + int opal_get_chars(uint32_t vtermno, char *buf, int count) { s64 len, rc; @@ -133,6 +151,13 @@ int opal_put_chars(uint32_t vtermno, const char *data, int total_len) rc == OPAL_BUSY_EVENT || rc == OPAL_SUCCESS)) { len = total_len; rc = opal_console_write(vtermno, &len, data); + + /* Closed or other error drop */ + if (rc != OPAL_SUCCESS && rc != OPAL_BUSY && + rc != OPAL_BUSY_EVENT) { + written = total_len; + break; + } if (rc == OPAL_SUCCESS) { total_len -= len; data += len; @@ -305,6 +330,8 @@ static int __init opal_init(void) irqs = of_get_property(opal_node, "opal-interrupts", &irqlen); pr_debug("opal: Found %d interrupts reserved for OPAL\n", irqs ? (irqlen / 4) : 0); + opal_irq_count = irqlen / 4; + opal_irqs = kzalloc(opal_irq_count * sizeof(unsigned int), GFP_KERNEL); for (i = 0; irqs && i < (irqlen / 4); i++, irqs++) { unsigned int hwirq = be32_to_cpup(irqs); unsigned int irq = irq_create_mapping(NULL, hwirq); @@ -316,7 +343,19 @@ static int __init opal_init(void) if (rc) pr_warning("opal: Error %d requesting irq %d" " (0x%x)\n", rc, irq, hwirq); + opal_irqs[i] = irq; } return 0; } subsys_initcall(opal_init); + +void opal_shutdown(void) +{ + unsigned int i; + + for (i = 0; i < opal_irq_count; i++) { + if (opal_irqs[i]) + free_irq(opal_irqs[i], 0); + opal_irqs[i] = 0; + } +} diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 8e90e89..9c9d15e 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -26,10 +26,12 @@ #include <asm/prom.h> #include <asm/pci-bridge.h> #include <asm/machdep.h> +#include <asm/msi_bitmap.h> #include <asm/ppc-pci.h> #include <asm/opal.h> #include <asm/iommu.h> #include <asm/tce.h> +#include <asm/xics.h> #include "powernv.h" #include "pci.h" @@ -66,16 +68,6 @@ define_pe_printk_level(pe_err, KERN_ERR); define_pe_printk_level(pe_warn, KERN_WARNING); define_pe_printk_level(pe_info, KERN_INFO); -static struct pci_dn *pnv_ioda_get_pdn(struct pci_dev *dev) -{ - struct device_node *np; - - np = pci_device_to_OF_node(dev); - if (!np) - return NULL; - return PCI_DN(np); -} - static int pnv_ioda_alloc_pe(struct pnv_phb *phb) { unsigned long pe; @@ -87,6 +79,7 @@ static int pnv_ioda_alloc_pe(struct pnv_phb *phb) return IODA_INVALID_PE; } while(test_and_set_bit(pe, phb->ioda.pe_alloc)); + phb->ioda.pe_array[pe].phb = phb; phb->ioda.pe_array[pe].pe_number = pe; return pe; } @@ -107,7 +100,7 @@ static struct pnv_ioda_pe *pnv_ioda_get_pe(struct pci_dev *dev) { struct pci_controller *hose = pci_bus_to_host(dev->bus); struct pnv_phb *phb = hose->private_data; - struct pci_dn *pdn = pnv_ioda_get_pdn(dev); + struct pci_dn *pdn = pci_get_pdn(dev); if (!pdn) return NULL; @@ -170,7 +163,7 @@ static int pnv_ioda_configure_pe(struct pnv_phb *phb, struct pnv_ioda_pe *pe) /* Add to all parents PELT-V */ while (parent) { - struct pci_dn *pdn = pnv_ioda_get_pdn(parent); + struct pci_dn *pdn = pci_get_pdn(parent); if (pdn && pdn->pe_number != IODA_INVALID_PE) { rc = opal_pci_set_peltv(phb->opal_id, pdn->pe_number, pe->pe_number, OPAL_ADD_PE_TO_DOMAIN); @@ -249,7 +242,7 @@ static struct pnv_ioda_pe *pnv_ioda_setup_dev_PE(struct pci_dev *dev) { struct pci_controller *hose = pci_bus_to_host(dev->bus); struct pnv_phb *phb = hose->private_data; - struct pci_dn *pdn = pnv_ioda_get_pdn(dev); + struct pci_dn *pdn = pci_get_pdn(dev); struct pnv_ioda_pe *pe; int pe_num; @@ -320,7 +313,7 @@ static void pnv_ioda_setup_same_PE(struct pci_bus *bus, struct pnv_ioda_pe *pe) struct pci_dev *dev; list_for_each_entry(dev, &bus->devices, bus_list) { - struct pci_dn *pdn = pnv_ioda_get_pdn(dev); + struct pci_dn *pdn = pci_get_pdn(dev); if (pdn == NULL) { pr_warn("%s: No device node associated with device !\n", @@ -431,22 +424,102 @@ static void pnv_pci_ioda_setup_PEs(void) } } -static void pnv_pci_ioda_dma_dev_setup(struct pnv_phb *phb, struct pci_dev *dev) +static void pnv_pci_ioda_dma_dev_setup(struct pnv_phb *phb, struct pci_dev *pdev) { - /* We delay DMA setup after we have assigned all PE# */ + struct pci_dn *pdn = pci_get_pdn(pdev); + struct pnv_ioda_pe *pe; + + /* + * The function can be called while the PE# + * hasn't been assigned. Do nothing for the + * case. + */ + if (!pdn || pdn->pe_number == IODA_INVALID_PE) + return; + + pe = &phb->ioda.pe_array[pdn->pe_number]; + set_iommu_table_base(&pdev->dev, &pe->tce32_table); } -static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe, struct pci_bus *bus) +static void pnv_pci_ioda1_tce_invalidate(struct iommu_table *tbl, + u64 *startp, u64 *endp) { - struct pci_dev *dev; + u64 __iomem *invalidate = (u64 __iomem *)tbl->it_index; + unsigned long start, end, inc; + + start = __pa(startp); + end = __pa(endp); + + /* BML uses this case for p6/p7/galaxy2: Shift addr and put in node */ + if (tbl->it_busno) { + start <<= 12; + end <<= 12; + inc = 128 << 12; + start |= tbl->it_busno; + end |= tbl->it_busno; + } else if (tbl->it_type & TCE_PCI_SWINV_PAIR) { + /* p7ioc-style invalidation, 2 TCEs per write */ + start |= (1ull << 63); + end |= (1ull << 63); + inc = 16; + } else { + /* Default (older HW) */ + inc = 128; + } - list_for_each_entry(dev, &bus->devices, bus_list) { - set_iommu_table_base(&dev->dev, &pe->tce32_table); - if (dev->subordinate) - pnv_ioda_setup_bus_dma(pe, dev->subordinate); + end |= inc - 1; /* round up end to be different than start */ + + mb(); /* Ensure above stores are visible */ + while (start <= end) { + __raw_writeq(start, invalidate); + start += inc; + } + + /* + * The iommu layer will do another mb() for us on build() + * and we don't care on free() + */ +} + +static void pnv_pci_ioda2_tce_invalidate(struct pnv_ioda_pe *pe, + struct iommu_table *tbl, + u64 *startp, u64 *endp) +{ + unsigned long start, end, inc; + u64 __iomem *invalidate = (u64 __iomem *)tbl->it_index; + + /* We'll invalidate DMA address in PE scope */ + start = 0x2ul << 60; + start |= (pe->pe_number & 0xFF); + end = start; + + /* Figure out the start, end and step */ + inc = tbl->it_offset + (((u64)startp - tbl->it_base) / sizeof(u64)); + start |= (inc << 12); + inc = tbl->it_offset + (((u64)endp - tbl->it_base) / sizeof(u64)); + end |= (inc << 12); + inc = (0x1ul << 12); + mb(); + + while (start <= end) { + __raw_writeq(start, invalidate); + start += inc; } } +void pnv_pci_ioda_tce_invalidate(struct iommu_table *tbl, + u64 *startp, u64 *endp) +{ + struct pnv_ioda_pe *pe = container_of(tbl, struct pnv_ioda_pe, + tce32_table); + struct pnv_phb *phb = pe->phb; + + if (phb->type == PNV_PHB_IODA1) + pnv_pci_ioda1_tce_invalidate(tbl, startp, endp); + else + pnv_pci_ioda2_tce_invalidate(pe, tbl, startp, endp); +} + static void pnv_pci_ioda_setup_dma_pe(struct pnv_phb *phb, struct pnv_ioda_pe *pe, unsigned int base, unsigned int segs) @@ -518,16 +591,11 @@ static void pnv_pci_ioda_setup_dma_pe(struct pnv_phb *phb, */ tbl->it_busno = 0; tbl->it_index = (unsigned long)ioremap(be64_to_cpup(swinvp), 8); - tbl->it_type = TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE - | TCE_PCI_SWINV_PAIR; + tbl->it_type = TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE | + TCE_PCI_SWINV_PAIR; } iommu_init_table(tbl, phb->hose->node); - if (pe->pdev) - set_iommu_table_base(&pe->pdev->dev, tbl); - else - pnv_ioda_setup_bus_dma(pe, pe->pbus); - return; fail: /* XXX Failure: Try to fallback to 64-bit only ? */ @@ -537,6 +605,76 @@ static void pnv_pci_ioda_setup_dma_pe(struct pnv_phb *phb, __free_pages(tce_mem, get_order(TCE32_TABLE_SIZE * segs)); } +static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb, + struct pnv_ioda_pe *pe) +{ + struct page *tce_mem = NULL; + void *addr; + const __be64 *swinvp; + struct iommu_table *tbl; + unsigned int tce_table_size, end; + int64_t rc; + + /* We shouldn't already have a 32-bit DMA associated */ + if (WARN_ON(pe->tce32_seg >= 0)) + return; + + /* The PE will reserve all possible 32-bits space */ + pe->tce32_seg = 0; + end = (1 << ilog2(phb->ioda.m32_pci_base)); + tce_table_size = (end / 0x1000) * 8; + pe_info(pe, "Setting up 32-bit TCE table at 0..%08x\n", + end); + + /* Allocate TCE table */ + tce_mem = alloc_pages_node(phb->hose->node, GFP_KERNEL, + get_order(tce_table_size)); + if (!tce_mem) { + pe_err(pe, "Failed to allocate a 32-bit TCE memory\n"); + goto fail; + } + addr = page_address(tce_mem); + memset(addr, 0, tce_table_size); + + /* + * Map TCE table through TVT. The TVE index is the PE number + * shifted by 1 bit for 32-bits DMA space. + */ + rc = opal_pci_map_pe_dma_window(phb->opal_id, pe->pe_number, + pe->pe_number << 1, 1, __pa(addr), + tce_table_size, 0x1000); + if (rc) { + pe_err(pe, "Failed to configure 32-bit TCE table," + " err %ld\n", rc); + goto fail; + } + + /* Setup linux iommu table */ + tbl = &pe->tce32_table; + pnv_pci_setup_iommu_table(tbl, addr, tce_table_size, 0); + + /* OPAL variant of PHB3 invalidated TCEs */ + swinvp = of_get_property(phb->hose->dn, "ibm,opal-tce-kill", NULL); + if (swinvp) { + /* We need a couple more fields -- an address and a data + * to or. Since the bus is only printed out on table free + * errors, and on the first pass the data will be a relative + * bus number, print that out instead. + */ + tbl->it_busno = 0; + tbl->it_index = (unsigned long)ioremap(be64_to_cpup(swinvp), 8); + tbl->it_type = TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE; + } + iommu_init_table(tbl, phb->hose->node); + + return; +fail: + if (pe->tce32_seg >= 0) + pe->tce32_seg = -1; + if (tce_mem) + __free_pages(tce_mem, get_order(tce_table_size)); +} + static void pnv_ioda_setup_dma(struct pnv_phb *phb) { struct pci_controller *hose = phb->hose; @@ -579,20 +717,50 @@ static void pnv_ioda_setup_dma(struct pnv_phb *phb) if (segs > remaining) segs = remaining; } - pe_info(pe, "DMA weight %d, assigned %d DMA32 segments\n", - pe->dma_weight, segs); - pnv_pci_ioda_setup_dma_pe(phb, pe, base, segs); + + /* + * For IODA2 compliant PHB3, we needn't care about the weight. + * The all available 32-bits DMA space will be assigned to + * the specific PE. + */ + if (phb->type == PNV_PHB_IODA1) { + pe_info(pe, "DMA weight %d, assigned %d DMA32 segments\n", + pe->dma_weight, segs); + pnv_pci_ioda_setup_dma_pe(phb, pe, base, segs); + } else { + pe_info(pe, "Assign DMA32 space\n"); + segs = 0; + pnv_pci_ioda2_setup_dma_pe(phb, pe); + } + remaining -= segs; base += segs; } } #ifdef CONFIG_PCI_MSI +static void pnv_ioda2_msi_eoi(struct irq_data *d) +{ + unsigned int hw_irq = (unsigned int)irqd_to_hwirq(d); + struct irq_chip *chip = irq_data_get_irq_chip(d); + struct pnv_phb *phb = container_of(chip, struct pnv_phb, + ioda.irq_chip); + int64_t rc; + + rc = opal_pci_msi_eoi(phb->opal_id, hw_irq); + WARN_ON_ONCE(rc); + + icp_native_eoi(d); +} + static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev, - unsigned int hwirq, unsigned int is_64, - struct msi_msg *msg) + unsigned int hwirq, unsigned int virq, + unsigned int is_64, struct msi_msg *msg) { struct pnv_ioda_pe *pe = pnv_ioda_get_pe(dev); + struct pci_dn *pdn = pci_get_pdn(dev); + struct irq_data *idata; + struct irq_chip *ichip; unsigned int xive_num = hwirq - phb->msi_base; uint64_t addr64; uint32_t addr32, data; @@ -606,6 +774,10 @@ static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev, if (pe->mve_number < 0) return -ENXIO; + /* Force 32-bit MSI on some broken devices */ + if (pdn && pdn->force_32bit_msi) + is_64 = 0; + /* Assign XIVE to PE */ rc = opal_pci_set_xive_pe(phb->opal_id, pe->pe_number, xive_num); if (rc) { @@ -637,6 +809,23 @@ static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev, } msg->data = data; + /* + * Change the IRQ chip for the MSI interrupts on PHB3. + * The corresponding IRQ chip should be populated for + * the first time. + */ + if (phb->type == PNV_PHB_IODA2) { + if (!phb->ioda.irq_chip_init) { + idata = irq_get_irq_data(virq); + ichip = irq_data_get_irq_chip(idata); + phb->ioda.irq_chip_init = 1; + phb->ioda.irq_chip = *ichip; + phb->ioda.irq_chip.irq_eoi = pnv_ioda2_msi_eoi; + } + + irq_set_chip(virq, &phb->ioda.irq_chip); + } + pr_devel("%s: %s-bit MSI on hwirq %x (xive #%d)," " address=%x_%08x data=%x PE# %d\n", pci_name(dev), is_64 ? "64" : "32", hwirq, xive_num, @@ -647,7 +836,7 @@ static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev, static void pnv_pci_init_ioda_msis(struct pnv_phb *phb) { - unsigned int bmap_size; + unsigned int count; const __be32 *prop = of_get_property(phb->hose->dn, "ibm,opal-msi-ranges", NULL); if (!prop) { @@ -658,18 +847,17 @@ static void pnv_pci_init_ioda_msis(struct pnv_phb *phb) return; phb->msi_base = be32_to_cpup(prop); - phb->msi_count = be32_to_cpup(prop + 1); - bmap_size = BITS_TO_LONGS(phb->msi_count) * sizeof(unsigned long); - phb->msi_map = zalloc_maybe_bootmem(bmap_size, GFP_KERNEL); - if (!phb->msi_map) { + count = be32_to_cpup(prop + 1); + if (msi_bitmap_alloc(&phb->msi_bmp, count, phb->hose->dn)) { pr_err("PCI %d: Failed to allocate MSI bitmap !\n", phb->hose->global_number); return; } + phb->msi_setup = pnv_pci_ioda_msi_setup; phb->msi32_support = 1; pr_info(" Allocated bitmap for %d MSIs (base IRQ 0x%x)\n", - phb->msi_count, phb->msi_base); + count, phb->msi_base); } #else static void pnv_pci_init_ioda_msis(struct pnv_phb *phb) { } @@ -722,11 +910,14 @@ static void pnv_ioda_setup_pe_seg(struct pci_controller *hose, index++; } } else if (res->flags & IORESOURCE_MEM) { + /* WARNING: Assumes M32 is mem region 0 in PHB. We need to + * harden that algorithm when we start supporting M64 + */ region.start = res->start - - hose->pci_mem_offset - + hose->mem_offset[0] - phb->ioda.m32_pci_base; region.end = res->end - - hose->pci_mem_offset - + hose->mem_offset[0] - phb->ioda.m32_pci_base; index = region.start / phb->ioda.m32_segsize; @@ -839,7 +1030,7 @@ static int pnv_pci_enable_device_hook(struct pci_dev *dev) if (!phb->initialized) return 0; - pdn = pnv_ioda_get_pdn(dev); + pdn = pci_get_pdn(dev); if (!pdn || pdn->pe_number == IODA_INVALID_PE) return -EINVAL; @@ -852,18 +1043,25 @@ static u32 pnv_ioda_bdfn_to_pe(struct pnv_phb *phb, struct pci_bus *bus, return phb->ioda.pe_rmap[(bus->number << 8) | devfn]; } -void __init pnv_pci_init_ioda1_phb(struct device_node *np) +static void pnv_pci_ioda_shutdown(struct pnv_phb *phb) +{ + opal_pci_reset(phb->opal_id, OPAL_PCI_IODA_TABLE_RESET, + OPAL_ASSERT_RESET); +} + +void __init pnv_pci_init_ioda_phb(struct device_node *np, int ioda_type) { struct pci_controller *hose; static int primary = 1; struct pnv_phb *phb; unsigned long size, m32map_off, iomap_off, pemap_off; const u64 *prop64; + const u32 *prop32; u64 phb_id; void *aux; long rc; - pr_info(" Initializing IODA OPAL PHB %s\n", np->full_name); + pr_info(" Initializing IODA%d OPAL PHB %s\n", ioda_type, np->full_name); prop64 = of_get_property(np, "ibm,opal-phbid", NULL); if (!prop64) { @@ -890,47 +1088,46 @@ void __init pnv_pci_init_ioda1_phb(struct device_node *np) hose->last_busno = 0xff; hose->private_data = phb; phb->opal_id = phb_id; - phb->type = PNV_PHB_IODA1; + phb->type = ioda_type; /* Detect specific models for error handling */ if (of_device_is_compatible(np, "ibm,p7ioc-pciex")) phb->model = PNV_PHB_MODEL_P7IOC; + else if (of_device_is_compatible(np, "ibm,power8-pciex")) + phb->model = PNV_PHB_MODEL_PHB3; else phb->model = PNV_PHB_MODEL_UNKNOWN; - /* We parse "ranges" now since we need to deduce the register base - * from the IO base - */ + /* Parse 32-bit and IO ranges (if any) */ pci_process_bridge_OF_ranges(phb->hose, np, primary); primary = 0; - /* Magic formula from Milton */ + /* Get registers */ phb->regs = of_iomap(np, 0); if (phb->regs == NULL) pr_err(" Failed to map registers !\n"); - - /* XXX This is hack-a-thon. This needs to be changed so that: - * - we obtain stuff like PE# etc... from device-tree - * - we properly re-allocate M32 ourselves - * (the OFW one isn't very good) - */ - /* Initialize more IODA stuff */ - phb->ioda.total_pe = 128; + prop32 = of_get_property(np, "ibm,opal-num-pes", NULL); + if (!prop32) + phb->ioda.total_pe = 1; + else + phb->ioda.total_pe = *prop32; phb->ioda.m32_size = resource_size(&hose->mem_resources[0]); - /* OFW Has already off top 64k of M32 space (MSI space) */ + /* FW Has already off top 64k of M32 space (MSI space) */ phb->ioda.m32_size += 0x10000; phb->ioda.m32_segsize = phb->ioda.m32_size / phb->ioda.total_pe; - phb->ioda.m32_pci_base = hose->mem_resources[0].start - - hose->pci_mem_offset; + phb->ioda.m32_pci_base = hose->mem_resources[0].start - hose->mem_offset[0]; phb->ioda.io_size = hose->pci_io_size; phb->ioda.io_segsize = phb->ioda.io_size / phb->ioda.total_pe; phb->ioda.io_pci_base = 0; /* XXX calculate this ? */ - /* Allocate aux data & arrays */ + /* Allocate aux data & arrays + * + * XXX TODO: Don't allocate io segmap on PHB3 + */ size = _ALIGN_UP(phb->ioda.total_pe / 8, sizeof(unsigned long)); m32map_off = size; size += phb->ioda.total_pe * sizeof(phb->ioda.m32_segmap[0]); @@ -960,7 +1157,7 @@ void __init pnv_pci_init_ioda1_phb(struct device_node *np) hose->mem_resources[2].start = 0; hose->mem_resources[2].end = 0; -#if 0 +#if 0 /* We should really do that ... */ rc = opal_pci_set_phb_mem_window(opal->phb_id, window_type, window_num, @@ -974,16 +1171,6 @@ void __init pnv_pci_init_ioda1_phb(struct device_node *np) phb->ioda.m32_size, phb->ioda.m32_segsize, phb->ioda.io_size, phb->ioda.io_segsize); - if (phb->regs) { - pr_devel(" BUID = 0x%016llx\n", in_be64(phb->regs + 0x100)); - pr_devel(" PHB2_CR = 0x%016llx\n", in_be64(phb->regs + 0x160)); - pr_devel(" IO_BAR = 0x%016llx\n", in_be64(phb->regs + 0x170)); - pr_devel(" IO_BAMR = 0x%016llx\n", in_be64(phb->regs + 0x178)); - pr_devel(" IO_SAR = 0x%016llx\n", in_be64(phb->regs + 0x180)); - pr_devel(" M32_BAR = 0x%016llx\n", in_be64(phb->regs + 0x190)); - pr_devel(" M32_BAMR = 0x%016llx\n", in_be64(phb->regs + 0x198)); - pr_devel(" M32_SAR = 0x%016llx\n", in_be64(phb->regs + 0x1a0)); - } phb->hose->ops = &pnv_pci_ops; /* Setup RID -> PE mapping function */ @@ -992,6 +1179,9 @@ void __init pnv_pci_init_ioda1_phb(struct device_node *np) /* Setup TCEs */ phb->dma_dev_setup = pnv_pci_ioda_dma_dev_setup; + /* Setup shutdown function for kexec */ + phb->shutdown = pnv_pci_ioda_shutdown; + /* Setup MSI support */ pnv_pci_init_ioda_msis(phb); @@ -1011,7 +1201,18 @@ void __init pnv_pci_init_ioda1_phb(struct device_node *np) rc = opal_pci_reset(phb_id, OPAL_PCI_IODA_TABLE_RESET, OPAL_ASSERT_RESET); if (rc) pr_warning(" OPAL Error %ld performing IODA table reset !\n", rc); - opal_pci_set_pe(phb_id, 0, 0, 7, 1, 1 , OPAL_MAP_PE); + + /* + * On IODA1 map everything to PE#0, on IODA2 we assume the IODA reset + * has cleared the RTT which has the same effect + */ + if (ioda_type == PNV_PHB_IODA1) + opal_pci_set_pe(phb_id, 0, 0, 7, 1, 1 , OPAL_MAP_PE); +} + +void pnv_pci_init_ioda2_phb(struct device_node *np) +{ + pnv_pci_init_ioda_phb(np, PNV_PHB_IODA2); } void __init pnv_pci_init_ioda_hub(struct device_node *np) @@ -1034,6 +1235,6 @@ void __init pnv_pci_init_ioda_hub(struct device_node *np) for_each_child_of_node(np, phbn) { /* Look for IODA1 PHBs */ if (of_device_is_compatible(phbn, "ibm,ioda-phb")) - pnv_pci_init_ioda1_phb(phbn); + pnv_pci_init_ioda_phb(phbn, PNV_PHB_IODA1); } } diff --git a/arch/powerpc/platforms/powernv/pci-p5ioc2.c b/arch/powerpc/platforms/powernv/pci-p5ioc2.c index 7db8771..92b37a0 100644 --- a/arch/powerpc/platforms/powernv/pci-p5ioc2.c +++ b/arch/powerpc/platforms/powernv/pci-p5ioc2.c @@ -26,6 +26,7 @@ #include <asm/prom.h> #include <asm/pci-bridge.h> #include <asm/machdep.h> +#include <asm/msi_bitmap.h> #include <asm/ppc-pci.h> #include <asm/opal.h> #include <asm/iommu.h> @@ -41,8 +42,8 @@ #ifdef CONFIG_PCI_MSI static int pnv_pci_p5ioc2_msi_setup(struct pnv_phb *phb, struct pci_dev *dev, - unsigned int hwirq, unsigned int is_64, - struct msi_msg *msg) + unsigned int hwirq, unsigned int virq, + unsigned int is_64, struct msi_msg *msg) { if (WARN_ON(!is_64)) return -ENXIO; @@ -55,7 +56,7 @@ static int pnv_pci_p5ioc2_msi_setup(struct pnv_phb *phb, struct pci_dev *dev, static void pnv_pci_init_p5ioc2_msis(struct pnv_phb *phb) { - unsigned int bmap_size; + unsigned int count; const __be32 *prop = of_get_property(phb->hose->dn, "ibm,opal-msi-ranges", NULL); if (!prop) @@ -67,10 +68,8 @@ static void pnv_pci_init_p5ioc2_msis(struct pnv_phb *phb) if (of_device_is_compatible(phb->hose->dn, "ibm,p5ioc2-pcix")) return; phb->msi_base = be32_to_cpup(prop); - phb->msi_count = be32_to_cpup(prop + 1); - bmap_size = BITS_TO_LONGS(phb->msi_count) * sizeof(unsigned long); - phb->msi_map = zalloc_maybe_bootmem(bmap_size, GFP_KERNEL); - if (!phb->msi_map) { + count = be32_to_cpup(prop + 1); + if (msi_bitmap_alloc(&phb->msi_bmp, count, phb->hose->dn)) { pr_err("PCI %d: Failed to allocate MSI bitmap !\n", phb->hose->global_number); return; @@ -78,7 +77,7 @@ static void pnv_pci_init_p5ioc2_msis(struct pnv_phb *phb) phb->msi_setup = pnv_pci_p5ioc2_msi_setup; phb->msi32_support = 0; pr_info(" Allocated bitmap for %d MSIs (base IRQ 0x%x)\n", - phb->msi_count, phb->msi_base); + count, phb->msi_base); } #else static void pnv_pci_init_p5ioc2_msis(struct pnv_phb *phb) { } diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c index b8b8e0b..277343c 100644 --- a/arch/powerpc/platforms/powernv/pci.c +++ b/arch/powerpc/platforms/powernv/pci.c @@ -26,6 +26,7 @@ #include <asm/prom.h> #include <asm/pci-bridge.h> #include <asm/machdep.h> +#include <asm/msi_bitmap.h> #include <asm/ppc-pci.h> #include <asm/opal.h> #include <asm/iommu.h> @@ -46,44 +47,12 @@ static int pnv_msi_check_device(struct pci_dev* pdev, int nvec, int type) { struct pci_controller *hose = pci_bus_to_host(pdev->bus); struct pnv_phb *phb = hose->private_data; + struct pci_dn *pdn = pci_get_pdn(pdev); - return (phb && phb->msi_map) ? 0 : -ENODEV; -} - -static unsigned int pnv_get_one_msi(struct pnv_phb *phb) -{ - unsigned long flags; - unsigned int id, rc; - - spin_lock_irqsave(&phb->lock, flags); - - id = find_next_zero_bit(phb->msi_map, phb->msi_count, phb->msi_next); - if (id >= phb->msi_count && phb->msi_next) - id = find_next_zero_bit(phb->msi_map, phb->msi_count, 0); - if (id >= phb->msi_count) { - rc = 0; - goto out; - } - __set_bit(id, phb->msi_map); - rc = id + phb->msi_base; -out: - spin_unlock_irqrestore(&phb->lock, flags); - return rc; -} - -static void pnv_put_msi(struct pnv_phb *phb, unsigned int hwirq) -{ - unsigned long flags; - unsigned int id; - - if (WARN_ON(hwirq < phb->msi_base || - hwirq >= (phb->msi_base + phb->msi_count))) - return; - id = hwirq - phb->msi_base; + if (pdn && pdn->force_32bit_msi && !phb->msi32_support) + return -ENODEV; - spin_lock_irqsave(&phb->lock, flags); - __clear_bit(id, phb->msi_map); - spin_unlock_irqrestore(&phb->lock, flags); + return (phb && phb->msi_bmp.bitmap) ? 0 : -ENODEV; } static int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) @@ -92,7 +61,8 @@ static int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) struct pnv_phb *phb = hose->private_data; struct msi_desc *entry; struct msi_msg msg; - unsigned int hwirq, virq; + int hwirq; + unsigned int virq; int rc; if (WARN_ON(!phb)) @@ -104,25 +74,25 @@ static int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) pci_name(pdev)); return -ENXIO; } - hwirq = pnv_get_one_msi(phb); - if (!hwirq) { + hwirq = msi_bitmap_alloc_hwirqs(&phb->msi_bmp, 1); + if (hwirq < 0) { pr_warn("%s: Failed to find a free MSI\n", pci_name(pdev)); return -ENOSPC; } - virq = irq_create_mapping(NULL, hwirq); + virq = irq_create_mapping(NULL, phb->msi_base + hwirq); if (virq == NO_IRQ) { pr_warn("%s: Failed to map MSI to linux irq\n", pci_name(pdev)); - pnv_put_msi(phb, hwirq); + msi_bitmap_free_hwirqs(&phb->msi_bmp, hwirq, 1); return -ENOMEM; } - rc = phb->msi_setup(phb, pdev, hwirq, entry->msi_attrib.is_64, - &msg); + rc = phb->msi_setup(phb, pdev, phb->msi_base + hwirq, + virq, entry->msi_attrib.is_64, &msg); if (rc) { pr_warn("%s: Failed to setup MSI\n", pci_name(pdev)); irq_dispose_mapping(virq); - pnv_put_msi(phb, hwirq); + msi_bitmap_free_hwirqs(&phb->msi_bmp, hwirq, 1); return rc; } irq_set_msi_desc(virq, entry); @@ -144,7 +114,8 @@ static void pnv_teardown_msi_irqs(struct pci_dev *pdev) if (entry->irq == NO_IRQ) continue; irq_set_msi_desc(entry->irq, NULL); - pnv_put_msi(phb, virq_to_hw(entry->irq)); + msi_bitmap_free_hwirqs(&phb->msi_bmp, + virq_to_hw(entry->irq) - phb->msi_base, 1); irq_dispose_mapping(entry->irq); } } @@ -362,48 +333,6 @@ struct pci_ops pnv_pci_ops = { .write = pnv_pci_write_config, }; - -static void pnv_tce_invalidate(struct iommu_table *tbl, - u64 *startp, u64 *endp) -{ - u64 __iomem *invalidate = (u64 __iomem *)tbl->it_index; - unsigned long start, end, inc; - - start = __pa(startp); - end = __pa(endp); - - - /* BML uses this case for p6/p7/galaxy2: Shift addr and put in node */ - if (tbl->it_busno) { - start <<= 12; - end <<= 12; - inc = 128 << 12; - start |= tbl->it_busno; - end |= tbl->it_busno; - } - /* p7ioc-style invalidation, 2 TCEs per write */ - else if (tbl->it_type & TCE_PCI_SWINV_PAIR) { - start |= (1ull << 63); - end |= (1ull << 63); - inc = 16; - } - /* Default (older HW) */ - else - inc = 128; - - end |= inc - 1; /* round up end to be different than start */ - - mb(); /* Ensure above stores are visible */ - while (start <= end) { - __raw_writeq(start, invalidate); - start += inc; - } - /* The iommu layer will do another mb() for us on build() and - * we don't care on free() - */ -} - - static int pnv_tce_build(struct iommu_table *tbl, long index, long npages, unsigned long uaddr, enum dma_data_direction direction, struct dma_attrs *attrs) @@ -428,7 +357,7 @@ static int pnv_tce_build(struct iommu_table *tbl, long index, long npages, * of flags if that becomes the case */ if (tbl->it_type & TCE_PCI_SWINV_CREATE) - pnv_tce_invalidate(tbl, tces, tcep - 1); + pnv_pci_ioda_tce_invalidate(tbl, tces, tcep - 1); return 0; } @@ -443,7 +372,7 @@ static void pnv_tce_free(struct iommu_table *tbl, long index, long npages) *(tcep++) = 0; if (tbl->it_type & TCE_PCI_SWINV_FREE) - pnv_tce_invalidate(tbl, tces, tcep - 1); + pnv_pci_ioda_tce_invalidate(tbl, tces, tcep - 1); } static unsigned long pnv_tce_get(struct iommu_table *tbl, long index) @@ -525,7 +454,19 @@ static void pnv_pci_dma_dev_setup(struct pci_dev *pdev) pnv_pci_dma_fallback_setup(hose, pdev); } -/* Fixup wrong class code in p7ioc root complex */ +void pnv_pci_shutdown(void) +{ + struct pci_controller *hose; + + list_for_each_entry(hose, &hose_list, list_node) { + struct pnv_phb *phb = hose->private_data; + + if (phb && phb->shutdown) + phb->shutdown(phb); + } +} + +/* Fixup wrong class code in p7ioc and p8 root complex */ static void pnv_p7ioc_rc_quirk(struct pci_dev *dev) { dev->class = PCI_CLASS_BRIDGE_PCI << 8; @@ -591,6 +532,10 @@ void __init pnv_pci_init(void) if (!found_ioda) for_each_compatible_node(np, NULL, "ibm,p5ioc2") pnv_pci_init_p5ioc2_hub(np); + + /* Look for ioda2 built-in PHB3's */ + for_each_compatible_node(np, NULL, "ibm,ioda2-phb") + pnv_pci_init_ioda2_phb(np); } /* Setup the linkage between OF nodes and PHBs */ diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h index 7cfb7c8..25d76c4 100644 --- a/arch/powerpc/platforms/powernv/pci.h +++ b/arch/powerpc/platforms/powernv/pci.h @@ -4,9 +4,9 @@ struct pci_dn; enum pnv_phb_type { - PNV_PHB_P5IOC2, - PNV_PHB_IODA1, - PNV_PHB_IODA2, + PNV_PHB_P5IOC2 = 0, + PNV_PHB_IODA1 = 1, + PNV_PHB_IODA2 = 2, }; /* Precise PHB model for error management */ @@ -14,6 +14,7 @@ enum pnv_phb_model { PNV_PHB_MODEL_UNKNOWN, PNV_PHB_MODEL_P5IOC2, PNV_PHB_MODEL_P7IOC, + PNV_PHB_MODEL_PHB3, }; #define PNV_PCI_DIAG_BUF_SIZE 4096 @@ -22,8 +23,10 @@ enum pnv_phb_model { #define PNV_IODA_PE_BUS_ALL (1 << 2) /* PE has subordinate buses */ /* Data associated with a PE, including IOMMU tracking etc.. */ +struct pnv_phb; struct pnv_ioda_pe { unsigned long flags; + struct pnv_phb *phb; /* A PE can be associated with a single device or an * entire bus (& children). In the former case, pdev @@ -73,18 +76,17 @@ struct pnv_phb { spinlock_t lock; #ifdef CONFIG_PCI_MSI - unsigned long *msi_map; unsigned int msi_base; - unsigned int msi_count; - unsigned int msi_next; unsigned int msi32_support; + struct msi_bitmap msi_bmp; #endif int (*msi_setup)(struct pnv_phb *phb, struct pci_dev *dev, - unsigned int hwirq, unsigned int is_64, - struct msi_msg *msg); + unsigned int hwirq, unsigned int virq, + unsigned int is_64, struct msi_msg *msg); void (*dma_dev_setup)(struct pnv_phb *phb, struct pci_dev *pdev); void (*fixup_phb)(struct pci_controller *hose); u32 (*bdfn_to_pe)(struct pnv_phb *phb, struct pci_bus *bus, u32 devfn); + void (*shutdown)(struct pnv_phb *phb); union { struct { @@ -109,6 +111,10 @@ struct pnv_phb { unsigned int *io_segmap; struct pnv_ioda_pe *pe_array; + /* IRQ chip */ + int irq_chip_init; + struct irq_chip irq_chip; + /* Sorted list of used PE's based * on the sequence of creation */ @@ -150,6 +156,8 @@ extern void pnv_pci_setup_iommu_table(struct iommu_table *tbl, u64 dma_offset); extern void pnv_pci_init_p5ioc2_hub(struct device_node *np); extern void pnv_pci_init_ioda_hub(struct device_node *np); - +extern void pnv_pci_init_ioda2_phb(struct device_node *np); +extern void pnv_pci_ioda_tce_invalidate(struct iommu_table *tbl, + u64 *startp, u64 *endp); #endif /* __POWERNV_PCI_H */ diff --git a/arch/powerpc/platforms/powernv/powernv.h b/arch/powerpc/platforms/powernv/powernv.h index 8a9df7f..a1c6f83 100644 --- a/arch/powerpc/platforms/powernv/powernv.h +++ b/arch/powerpc/platforms/powernv/powernv.h @@ -9,8 +9,10 @@ static inline void pnv_smp_init(void) { } #ifdef CONFIG_PCI extern void pnv_pci_init(void); +extern void pnv_pci_shutdown(void); #else static inline void pnv_pci_init(void) { } +static inline void pnv_pci_shutdown(void) { } #endif #endif /* _POWERNV_H */ diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index db1ad1c..d4459bf 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -78,7 +78,9 @@ static void pnv_show_cpuinfo(struct seq_file *m) if (root) model = of_get_property(root, "model", NULL); seq_printf(m, "machine\t\t: PowerNV %s\n", model); - if (firmware_has_feature(FW_FEATURE_OPALv2)) + if (firmware_has_feature(FW_FEATURE_OPALv3)) + seq_printf(m, "firmware\t: OPAL v3\n"); + else if (firmware_has_feature(FW_FEATURE_OPALv2)) seq_printf(m, "firmware\t: OPAL v2\n"); else if (firmware_has_feature(FW_FEATURE_OPAL)) seq_printf(m, "firmware\t: OPAL v1\n"); @@ -126,6 +128,17 @@ static void pnv_progress(char *s, unsigned short hex) { } +static void pnv_shutdown(void) +{ + /* Let the PCI code clear up IODA tables */ + pnv_pci_shutdown(); + + /* And unregister all OPAL interrupts so they don't fire + * up while we kexec + */ + opal_shutdown(); +} + #ifdef CONFIG_KEXEC static void pnv_kexec_cpu_down(int crash_shutdown, int secondary) { @@ -187,6 +200,7 @@ define_machine(powernv) { .init_IRQ = pnv_init_IRQ, .show_cpuinfo = pnv_show_cpuinfo, .progress = pnv_progress, + .machine_shutdown = pnv_shutdown, .power_save = power7_idle, .calibrate_decr = generic_calibrate_decr, #ifdef CONFIG_KEXEC diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c index c916432..8cbaa59 100644 --- a/arch/powerpc/platforms/powernv/smp.c +++ b/arch/powerpc/platforms/powernv/smp.c @@ -55,16 +55,68 @@ int pnv_smp_kick_cpu(int nr) BUG_ON(nr < 0 || nr >= NR_CPUS); - /* On OPAL v2 the CPU are still spinning inside OPAL itself, - * get them back now + /* + * If we already started or OPALv2 is not supported, we just + * kick the CPU via the PACA */ - if (!paca[nr].cpu_start && firmware_has_feature(FW_FEATURE_OPALv2)) { - pr_devel("OPAL: Starting CPU %d (HW 0x%x)...\n", nr, pcpu); - rc = opal_start_cpu(pcpu, start_here); - if (rc != OPAL_SUCCESS) - pr_warn("OPAL Error %ld starting CPU %d\n", + if (paca[nr].cpu_start || !firmware_has_feature(FW_FEATURE_OPALv2)) + goto kick; + + /* + * At this point, the CPU can either be spinning on the way in + * from kexec or be inside OPAL waiting to be started for the + * first time. OPAL v3 allows us to query OPAL to know if it + * has the CPUs, so we do that + */ + if (firmware_has_feature(FW_FEATURE_OPALv3)) { + uint8_t status; + + rc = opal_query_cpu_status(pcpu, &status); + if (rc != OPAL_SUCCESS) { + pr_warn("OPAL Error %ld querying CPU %d state\n", rc, nr); + return -ENODEV; + } + + /* + * Already started, just kick it, probably coming from + * kexec and spinning + */ + if (status == OPAL_THREAD_STARTED) + goto kick; + + /* + * Available/inactive, let's kick it + */ + if (status == OPAL_THREAD_INACTIVE) { + pr_devel("OPAL: Starting CPU %d (HW 0x%x)...\n", + nr, pcpu); + rc = opal_start_cpu(pcpu, start_here); + if (rc != OPAL_SUCCESS) { + pr_warn("OPAL Error %ld starting CPU %d\n", + rc, nr); + return -ENODEV; + } + } else { + /* + * An unavailable CPU (or any other unknown status) + * shouldn't be started. It should also + * not be in the possible map but currently it can + * happen + */ + pr_devel("OPAL: CPU %d (HW 0x%x) is unavailable" + " (status %d)...\n", nr, pcpu, status); + return -ENODEV; + } + } else { + /* + * On OPAL v2, we just kick it and hope for the best, + * we must not test the error from opal_start_cpu() or + * we would fail to get CPUs from kexec. + */ + opal_start_cpu(pcpu, start_here); } + kick: return smp_generic_kick_cpu(nr); } diff --git a/arch/powerpc/platforms/prep/Kconfig b/arch/powerpc/platforms/prep/Kconfig deleted file mode 100644 index 1547f66..0000000 --- a/arch/powerpc/platforms/prep/Kconfig +++ /dev/null @@ -1,23 +0,0 @@ -config PPC_PREP - bool "PowerPC Reference Platform (PReP) based machines" - depends on 6xx && BROKEN - select HAVE_PCSPKR_PLATFORM - select MPIC - select PPC_I8259 - select PPC_INDIRECT_PCI - select PPC_UDBG_16550 - select PPC_NATIVE - default n - -config PREP_RESIDUAL - bool "Support for PReP Residual Data" - depends on PPC_PREP - help - Some PReP systems have residual data passed to the kernel by the - firmware. This allows detection of memory size, devices present and - other useful pieces of information. Sometimes this information is - not present or incorrect, in which case it could lead to the machine - behaving incorrectly. If this happens, either disable PREP_RESIDUAL - or pass the 'noresidual' option to the kernel. - - If you are running a PReP system, say Y here, otherwise say N. diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig index 46b7f02..e87c194 100644 --- a/arch/powerpc/platforms/ps3/Kconfig +++ b/arch/powerpc/platforms/ps3/Kconfig @@ -48,7 +48,7 @@ config PS3_HTAB_SIZE system will have optimal runtime performance. config PS3_DYNAMIC_DMA - depends on PPC_PS3 && EXPERIMENTAL + depends on PPC_PS3 bool "PS3 Platform dynamic DMA page table management" default n help diff --git a/arch/powerpc/platforms/ps3/htab.c b/arch/powerpc/platforms/ps3/htab.c index d00d7b0..177a2f7 100644 --- a/arch/powerpc/platforms/ps3/htab.c +++ b/arch/powerpc/platforms/ps3/htab.c @@ -27,6 +27,7 @@ #include <asm/lv1call.h> #include <asm/ps3fb.h> +#define PS3_VERBOSE_RESULT #include "platform.h" /** @@ -45,7 +46,7 @@ static DEFINE_SPINLOCK(ps3_htab_lock); static long ps3_hpte_insert(unsigned long hpte_group, unsigned long vpn, unsigned long pa, unsigned long rflags, unsigned long vflags, - int psize, int ssize) + int psize, int apsize, int ssize) { int result; u64 hpte_v, hpte_r; @@ -61,8 +62,8 @@ static long ps3_hpte_insert(unsigned long hpte_group, unsigned long vpn, */ vflags &= ~HPTE_V_SECONDARY; - hpte_v = hpte_encode_v(vpn, psize, ssize) | vflags | HPTE_V_VALID; - hpte_r = hpte_encode_r(ps3_mm_phys_to_lpar(pa), psize) | rflags; + hpte_v = hpte_encode_v(vpn, psize, apsize, ssize) | vflags | HPTE_V_VALID; + hpte_r = hpte_encode_r(ps3_mm_phys_to_lpar(pa), psize, apsize) | rflags; spin_lock_irqsave(&ps3_htab_lock, flags); @@ -75,8 +76,9 @@ static long ps3_hpte_insert(unsigned long hpte_group, unsigned long vpn, if (result) { /* all entries bolted !*/ - pr_info("%s:result=%d vpn=%lx pa=%lx ix=%lx v=%llx r=%llx\n", - __func__, result, vpn, pa, hpte_group, hpte_v, hpte_r); + pr_info("%s:result=%s vpn=%lx pa=%lx ix=%lx v=%llx r=%llx\n", + __func__, ps3_result(result), vpn, pa, hpte_group, + hpte_v, hpte_r); BUG(); } @@ -115,7 +117,7 @@ static long ps3_hpte_updatepp(unsigned long slot, unsigned long newpp, unsigned long flags; long ret; - want_v = hpte_encode_v(vpn, psize, ssize); + want_v = hpte_encode_avpn(vpn, psize, ssize); spin_lock_irqsave(&ps3_htab_lock, flags); @@ -125,8 +127,8 @@ static long ps3_hpte_updatepp(unsigned long slot, unsigned long newpp, &hpte_rs); if (result) { - pr_info("%s: res=%d read vpn=%lx slot=%lx psize=%d\n", - __func__, result, vpn, slot, psize); + pr_info("%s: result=%s read vpn=%lx slot=%lx psize=%d\n", + __func__, ps3_result(result), vpn, slot, psize); BUG(); } @@ -170,8 +172,8 @@ static void ps3_hpte_invalidate(unsigned long slot, unsigned long vpn, result = lv1_write_htab_entry(PS3_LPAR_VAS_ID_CURRENT, slot, 0, 0); if (result) { - pr_info("%s: res=%d vpn=%lx slot=%lx psize=%d\n", - __func__, result, vpn, slot, psize); + pr_info("%s: result=%s vpn=%lx slot=%lx psize=%d\n", + __func__, ps3_result(result), vpn, slot, psize); BUG(); } diff --git a/arch/powerpc/platforms/ps3/time.c b/arch/powerpc/platforms/ps3/time.c index 40b5cb4..cba1e6b 100644 --- a/arch/powerpc/platforms/ps3/time.c +++ b/arch/powerpc/platforms/ps3/time.c @@ -89,10 +89,8 @@ static int __init ps3_rtc_init(void) return -ENODEV; pdev = platform_device_register_simple("rtc-ps3", -1, NULL, 0); - if (IS_ERR(pdev)) - return PTR_ERR(pdev); - return 0; + return PTR_RET(pdev); } module_init(ps3_rtc_init); diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index 837cf49..4459eff 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -17,6 +17,10 @@ config PPC_PSERIES select PPC_NATIVE select PPC_PCI_CHOICE if EXPERT select ZLIB_DEFLATE + select PPC_DOORBELL + select HAVE_CONTEXT_TRACKING + select HOTPLUG if SMP + select HOTPLUG_CPU if SMP default y config PPC_SPLPAR diff --git a/arch/powerpc/platforms/pseries/dtl.c b/arch/powerpc/platforms/pseries/dtl.c index a764854..0cc0ac0 100644 --- a/arch/powerpc/platforms/pseries/dtl.c +++ b/arch/powerpc/platforms/pseries/dtl.c @@ -57,7 +57,7 @@ static u8 dtl_event_mask = 0x7; */ static int dtl_buf_entries = N_DISPATCH_LOG; -#ifdef CONFIG_VIRT_CPU_ACCOUNTING +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE struct dtl_ring { u64 write_index; struct dtl_entry *write_ptr; @@ -142,7 +142,7 @@ static u64 dtl_current_index(struct dtl *dtl) return per_cpu(dtl_rings, dtl->cpu).write_index; } -#else /* CONFIG_VIRT_CPU_ACCOUNTING */ +#else /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ static int dtl_start(struct dtl *dtl) { @@ -188,7 +188,7 @@ static u64 dtl_current_index(struct dtl *dtl) { return lppaca_of(dtl->cpu).dtl_idx; } -#endif /* CONFIG_VIRT_CPU_ACCOUNTING */ +#endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ static int dtl_enable(struct dtl *dtl) { diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 9a04322..6b73d6c 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -788,7 +788,6 @@ static void eeh_add_device_late(struct pci_dev *dev) dev->dev.archdata.edev = edev; eeh_addr_cache_insert_dev(dev); - eeh_sysfs_add_device(dev); } /** @@ -815,6 +814,29 @@ void eeh_add_device_tree_late(struct pci_bus *bus) EXPORT_SYMBOL_GPL(eeh_add_device_tree_late); /** + * eeh_add_sysfs_files - Add EEH sysfs files for the indicated PCI bus + * @bus: PCI bus + * + * This routine must be used to add EEH sysfs files for PCI + * devices which are attached to the indicated PCI bus. The PCI bus + * is added after system boot through hotplug or dlpar. + */ +void eeh_add_sysfs_files(struct pci_bus *bus) +{ + struct pci_dev *dev; + + list_for_each_entry(dev, &bus->devices, bus_list) { + eeh_sysfs_add_device(dev); + if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { + struct pci_bus *subbus = dev->subordinate; + if (subbus) + eeh_add_sysfs_files(subbus); + } + } +} +EXPORT_SYMBOL_GPL(eeh_add_sysfs_files); + +/** * eeh_remove_device - Undo EEH setup for the indicated pci device * @dev: pci device to be removed * @purge_pe: remove the PE or not diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c index 5a4c879..5ce3ba7 100644 --- a/arch/powerpc/platforms/pseries/eeh_cache.c +++ b/arch/powerpc/platforms/pseries/eeh_cache.c @@ -294,8 +294,6 @@ void __init eeh_addr_cache_build(void) spin_lock_init(&pci_io_addr_cache_root.piar_lock); for_each_pci_dev(dev) { - eeh_addr_cache_insert_dev(dev); - dn = pci_device_to_OF_node(dev); if (!dn) continue; @@ -308,6 +306,8 @@ void __init eeh_addr_cache_build(void) dev->dev.archdata.edev = edev; edev->pdev = dev; + eeh_addr_cache_insert_dev(dev); + eeh_sysfs_add_device(dev); } diff --git a/arch/powerpc/platforms/pseries/eeh_pe.c b/arch/powerpc/platforms/pseries/eeh_pe.c index fe43d1a..9d4a9e8 100644 --- a/arch/powerpc/platforms/pseries/eeh_pe.c +++ b/arch/powerpc/platforms/pseries/eeh_pe.c @@ -639,7 +639,8 @@ struct pci_bus *eeh_pe_bus_get(struct eeh_pe *pe) if (pe->type & EEH_PE_PHB) { bus = pe->phb->bus; - } else if (pe->type & EEH_PE_BUS) { + } else if (pe->type & EEH_PE_BUS || + pe->type & EEH_PE_DEVICE) { edev = list_first_entry(&pe->edevs, struct eeh_dev, list); pdev = eeh_dev_to_pci_dev(edev); if (pdev) diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c index 19506f9..b456b15 100644 --- a/arch/powerpc/platforms/pseries/eeh_pseries.c +++ b/arch/powerpc/platforms/pseries/eeh_pseries.c @@ -83,7 +83,11 @@ static int pseries_eeh_init(void) ibm_configure_pe = rtas_token("ibm,configure-pe"); ibm_configure_bridge = rtas_token("ibm,configure-bridge"); - /* necessary sanity check */ + /* + * Necessary sanity check. We needn't check "get-config-addr-info" + * and its variant since the old firmware probably support address + * of domain/bus/slot/function for EEH RTAS operations. + */ if (ibm_set_eeh_option == RTAS_UNKNOWN_SERVICE) { pr_warning("%s: RTAS service <ibm,set-eeh-option> invalid\n", __func__); @@ -102,12 +106,6 @@ static int pseries_eeh_init(void) pr_warning("%s: RTAS service <ibm,slot-error-detail> invalid\n", __func__); return -EINVAL; - } else if (ibm_get_config_addr_info2 == RTAS_UNKNOWN_SERVICE && - ibm_get_config_addr_info == RTAS_UNKNOWN_SERVICE) { - pr_warning("%s: RTAS service <ibm,get-config-addr-info2> and " - "<ibm,get-config-addr-info> invalid\n", - __func__); - return -EINVAL; } else if (ibm_configure_pe == RTAS_UNKNOWN_SERVICE && ibm_configure_bridge == RTAS_UNKNOWN_SERVICE) { pr_warning("%s: RTAS service <ibm,configure-pe> and " diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c index 7b56118..8c80588 100644 --- a/arch/powerpc/platforms/pseries/firmware.c +++ b/arch/powerpc/platforms/pseries/firmware.c @@ -28,13 +28,18 @@ #include "pseries.h" -typedef struct { +struct hypertas_fw_feature { unsigned long val; char * name; -} firmware_feature_t; +}; -static __initdata firmware_feature_t -firmware_features_table[FIRMWARE_MAX_FEATURES] = { +/* + * The names in this table match names in rtas/ibm,hypertas-functions. If the + * entry ends in a '*', only upto the '*' is matched. Otherwise the entire + * string must match. + */ +static __initdata struct hypertas_fw_feature +hypertas_fw_features_table[] = { {FW_FEATURE_PFT, "hcall-pft"}, {FW_FEATURE_TCE, "hcall-tce"}, {FW_FEATURE_SPRG0, "hcall-sprg0"}, @@ -57,32 +62,72 @@ firmware_features_table[FIRMWARE_MAX_FEATURES] = { {FW_FEATURE_SPLPAR, "hcall-splpar"}, {FW_FEATURE_VPHN, "hcall-vphn"}, {FW_FEATURE_SET_MODE, "hcall-set-mode"}, + {FW_FEATURE_BEST_ENERGY, "hcall-best-energy-1*"}, }; /* Build up the firmware features bitmask using the contents of * device-tree/ibm,hypertas-functions. Ultimately this functionality may * be moved into prom.c prom_init(). */ -void __init fw_feature_init(const char *hypertas, unsigned long len) +void __init fw_hypertas_feature_init(const char *hypertas, unsigned long len) { const char *s; int i; - pr_debug(" -> fw_feature_init()\n"); + pr_debug(" -> fw_hypertas_feature_init()\n"); for (s = hypertas; s < hypertas + len; s += strlen(s) + 1) { - for (i = 0; i < FIRMWARE_MAX_FEATURES; i++) { - /* check value against table of strings */ - if (!firmware_features_table[i].name || - strcmp(firmware_features_table[i].name, s)) + for (i = 0; i < ARRAY_SIZE(hypertas_fw_features_table); i++) { + const char *name = hypertas_fw_features_table[i].name; + size_t size; + + /* + * If there is a '*' at the end of name, only check + * upto there + */ + size = strlen(name); + if (size && name[size - 1] == '*') { + if (strncmp(name, s, size - 1)) + continue; + } else if (strcmp(name, s)) continue; /* we have a match */ powerpc_firmware_features |= - firmware_features_table[i].val; + hypertas_fw_features_table[i].val; break; } } - pr_debug(" <- fw_feature_init()\n"); + pr_debug(" <- fw_hypertas_feature_init()\n"); +} + +struct vec5_fw_feature { + unsigned long val; + unsigned int feature; +}; + +static __initdata struct vec5_fw_feature +vec5_fw_features_table[] = { + {FW_FEATURE_TYPE1_AFFINITY, OV5_TYPE1_AFFINITY}, + {FW_FEATURE_PRRN, OV5_PRRN}, +}; + +void __init fw_vec5_feature_init(const char *vec5, unsigned long len) +{ + unsigned int index, feat; + int i; + + pr_debug(" -> fw_vec5_feature_init()\n"); + + for (i = 0; i < ARRAY_SIZE(vec5_fw_features_table); i++) { + index = OV5_INDX(vec5_fw_features_table[i].feature); + feat = OV5_FEAT(vec5_fw_features_table[i].feature); + + if (vec5[index] & feat) + powerpc_firmware_features |= + vec5_fw_features_table[i].val; + } + + pr_debug(" <- fw_vec5_feature_init()\n"); } diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c index a389562..217ca5c 100644 --- a/arch/powerpc/platforms/pseries/hotplug-cpu.c +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c @@ -127,9 +127,16 @@ static void pseries_mach_cpu_die(void) get_lppaca()->donate_dedicated_cpu = 1; while (get_preferred_offline_state(cpu) == CPU_STATE_INACTIVE) { + while (!prep_irq_for_idle()) { + local_irq_enable(); + local_irq_disable(); + } + extended_cede_processor(cede_latency_hint); } + local_irq_disable(); + if (!get_lppaca()->shared_proc) get_lppaca()->donate_dedicated_cpu = 0; get_lppaca()->idle = 0; @@ -137,6 +144,7 @@ static void pseries_mach_cpu_die(void) if (get_preferred_offline_state(cpu) == CPU_STATE_ONLINE) { unregister_slb_shadow(hwcpu); + hard_irq_disable(); /* * Call to start_secondary_resume() will not return. * Kernel stack will be reset and start_secondary() diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c index 2372c60..9a432de 100644 --- a/arch/powerpc/platforms/pseries/hotplug-memory.c +++ b/arch/powerpc/platforms/pseries/hotplug-memory.c @@ -72,6 +72,7 @@ unsigned long memory_block_size_bytes(void) return get_memblock_size(); } +#ifdef CONFIG_MEMORY_HOTREMOVE static int pseries_remove_memblock(unsigned long base, unsigned int memblock_size) { unsigned long start, start_pfn; @@ -153,6 +154,17 @@ static int pseries_remove_memory(struct device_node *np) ret = pseries_remove_memblock(base, lmb_size); return ret; } +#else +static inline int pseries_remove_memblock(unsigned long base, + unsigned int memblock_size) +{ + return -EOPNOTSUPP; +} +static inline int pseries_remove_memory(struct device_node *np) +{ + return -EOPNOTSUPP; +} +#endif /* CONFIG_MEMORY_HOTREMOVE */ static int pseries_add_memory(struct device_node *np) { diff --git a/arch/powerpc/platforms/pseries/hvCall_inst.c b/arch/powerpc/platforms/pseries/hvCall_inst.c index c9311cf..cf4e773 100644 --- a/arch/powerpc/platforms/pseries/hvCall_inst.c +++ b/arch/powerpc/platforms/pseries/hvCall_inst.c @@ -86,7 +86,7 @@ static int hcall_inst_seq_open(struct inode *inode, struct file *file) rc = seq_open(file, &hcall_inst_seq_ops); seq = file->private_data; - seq->private = file->f_path.dentry->d_inode->i_private; + seq->private = file_inode(file)->i_private; return rc; } diff --git a/arch/powerpc/platforms/pseries/hvcserver.c b/arch/powerpc/platforms/pseries/hvcserver.c index fcf4b4c..4557e91 100644 --- a/arch/powerpc/platforms/pseries/hvcserver.c +++ b/arch/powerpc/platforms/pseries/hvcserver.c @@ -23,6 +23,7 @@ #include <linux/list.h> #include <linux/module.h> #include <linux/slab.h> +#include <linux/string.h> #include <asm/hvcall.h> #include <asm/hvcserver.h> @@ -188,9 +189,9 @@ int hvcs_get_partner_info(uint32_t unit_address, struct list_head *head, = (unsigned int)last_p_partition_ID; /* copy the Null-term char too */ - strncpy(&next_partner_info->location_code[0], + strlcpy(&next_partner_info->location_code[0], (char *)&pi_buff[2], - strlen((char *)&pi_buff[2]) + 1); + sizeof(next_partner_info->location_code)); list_add_tail(&(next_partner_info->node), head); next_partner_info = NULL; diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index e2685ba..86ae364 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -382,6 +382,7 @@ static int tce_clearrange_multi_pSeriesLP(unsigned long start_pfn, rc = plpar_tce_stuff((u64)be32_to_cpu(maprange->liobn), dma_offset, 0, limit); + next += limit * tce_size; num_tce -= limit; } while (num_tce > 0 && !rc); @@ -786,33 +787,68 @@ static u64 find_existing_ddw(struct device_node *pdn) return dma_addr; } +static void __restore_default_window(struct eeh_dev *edev, + u32 ddw_restore_token) +{ + u32 cfg_addr; + u64 buid; + int ret; + + /* + * Get the config address and phb buid of the PE window. + * Rely on eeh to retrieve this for us. + * Retrieve them from the pci device, not the node with the + * dma-window property + */ + cfg_addr = edev->config_addr; + if (edev->pe_config_addr) + cfg_addr = edev->pe_config_addr; + buid = edev->phb->buid; + + do { + ret = rtas_call(ddw_restore_token, 3, 1, NULL, cfg_addr, + BUID_HI(buid), BUID_LO(buid)); + } while (rtas_busy_delay(ret)); + pr_info("ibm,reset-pe-dma-windows(%x) %x %x %x returned %d\n", + ddw_restore_token, cfg_addr, BUID_HI(buid), BUID_LO(buid), ret); +} + static int find_existing_ddw_windows(void) { - int len; struct device_node *pdn; - struct direct_window *window; const struct dynamic_dma_window_prop *direct64; + const u32 *ddw_extensions; if (!firmware_has_feature(FW_FEATURE_LPAR)) return 0; for_each_node_with_property(pdn, DIRECT64_PROPNAME) { - direct64 = of_get_property(pdn, DIRECT64_PROPNAME, &len); + direct64 = of_get_property(pdn, DIRECT64_PROPNAME, NULL); if (!direct64) continue; - window = kzalloc(sizeof(*window), GFP_KERNEL); - if (!window || len < sizeof(struct dynamic_dma_window_prop)) { - kfree(window); - remove_ddw(pdn); - continue; - } + /* + * We need to ensure the IOMMU table is active when we + * return from the IOMMU setup so that the common code + * can clear the table or find the holes. To that end, + * first, remove any existing DDW configuration. + */ + remove_ddw(pdn); - window->device = pdn; - window->prop = direct64; - spin_lock(&direct_window_list_lock); - list_add(&window->list, &direct_window_list); - spin_unlock(&direct_window_list_lock); + /* + * Second, if we are running on a new enough level of + * firmware where the restore API is present, use it to + * restore the 32-bit window, which was removed in + * create_ddw. + * If the API is not present, then create_ddw couldn't + * have removed the 32-bit window in the first place, so + * removing the DDW configuration should be sufficient. + */ + ddw_extensions = of_get_property(pdn, "ibm,ddw-extensions", + NULL); + if (ddw_extensions && ddw_extensions[0] > 0) + __restore_default_window(of_node_to_eeh_dev(pdn), + ddw_extensions[1]); } return 0; @@ -883,33 +919,17 @@ static int create_ddw(struct pci_dev *dev, const u32 *ddw_avail, } static void restore_default_window(struct pci_dev *dev, - u32 ddw_restore_token, unsigned long liobn) + u32 ddw_restore_token) { - struct eeh_dev *edev; - u32 cfg_addr; - u64 buid; - int ret; + __restore_default_window(pci_dev_to_eeh_dev(dev), ddw_restore_token); +} - /* - * Get the config address and phb buid of the PE window. - * Rely on eeh to retrieve this for us. - * Retrieve them from the pci device, not the node with the - * dma-window property - */ - edev = pci_dev_to_eeh_dev(dev); - cfg_addr = edev->config_addr; - if (edev->pe_config_addr) - cfg_addr = edev->pe_config_addr; - buid = edev->phb->buid; +struct failed_ddw_pdn { + struct device_node *pdn; + struct list_head list; +}; - do { - ret = rtas_call(ddw_restore_token, 3, 1, NULL, cfg_addr, - BUID_HI(buid), BUID_LO(buid)); - } while (rtas_busy_delay(ret)); - dev_info(&dev->dev, - "ibm,reset-pe-dma-windows(%x) %x %x %x returned %d\n", - ddw_restore_token, cfg_addr, BUID_HI(buid), BUID_LO(buid), ret); -} +static LIST_HEAD(failed_ddw_pdn_list); /* * If the PE supports dynamic dma windows, and there is space for a table @@ -938,6 +958,7 @@ static u64 enable_ddw(struct pci_dev *dev, struct device_node *pdn) struct dynamic_dma_window_prop *ddwprop; const void *dma_window = NULL; unsigned long liobn, offset, size; + struct failed_ddw_pdn *fpdn; mutex_lock(&direct_window_init_mutex); @@ -946,6 +967,18 @@ static u64 enable_ddw(struct pci_dev *dev, struct device_node *pdn) goto out_unlock; /* + * If we already went through this for a previous function of + * the same device and failed, we don't want to muck with the + * DMA window again, as it will race with in-flight operations + * and can lead to EEHs. The above mutex protects access to the + * list. + */ + list_for_each_entry(fpdn, &failed_ddw_pdn_list, list) { + if (!strcmp(fpdn->pdn->full_name, pdn->full_name)) + goto out_unlock; + } + + /* * the ibm,ddw-applicable property holds the tokens for: * ibm,query-pe-dma-window * ibm,create-pe-dma-window @@ -1099,7 +1132,13 @@ out_free_prop: out_restore_window: if (ddw_restore_token) - restore_default_window(dev, ddw_restore_token, liobn); + restore_default_window(dev, ddw_restore_token); + + fpdn = kzalloc(sizeof(*fpdn), GFP_KERNEL); + if (!fpdn) + goto out_unlock; + fpdn->pdn = pdn; + list_add(&fpdn->list, &failed_ddw_pdn_list); out_unlock: mutex_unlock(&direct_window_init_mutex); @@ -1295,6 +1334,7 @@ static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long acti switch (action) { case OF_RECONFIG_DETACH_NODE: + remove_ddw(np); if (pci && pci->iommu_table) iommu_free_table(pci->iommu_table, np->full_name); @@ -1307,16 +1347,6 @@ static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long acti } } spin_unlock(&direct_window_list_lock); - - /* - * Because the notifier runs after isolation of the - * slot, we are guaranteed any DMA window has already - * been revoked and the TCEs have been marked invalid, - * so we don't need a call to remove_ddw(np). However, - * if an additional notifier action is added before the - * isolate call, we should update this code for - * completeness with such a call. - */ break; default: err = NOTIFY_DONE; diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 0da39fe..6d62072 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -109,7 +109,7 @@ void vpa_init(int cpu) static long pSeries_lpar_hpte_insert(unsigned long hpte_group, unsigned long vpn, unsigned long pa, unsigned long rflags, unsigned long vflags, - int psize, int ssize) + int psize, int apsize, int ssize) { unsigned long lpar_rc; unsigned long flags; @@ -121,8 +121,8 @@ static long pSeries_lpar_hpte_insert(unsigned long hpte_group, "pa=%016lx, rflags=%lx, vflags=%lx, psize=%d)\n", hpte_group, vpn, pa, rflags, vflags, psize); - hpte_v = hpte_encode_v(vpn, psize, ssize) | vflags | HPTE_V_VALID; - hpte_r = hpte_encode_r(pa, psize) | rflags; + hpte_v = hpte_encode_v(vpn, psize, apsize, ssize) | vflags | HPTE_V_VALID; + hpte_r = hpte_encode_r(pa, psize, apsize) | rflags; if (!(vflags & HPTE_V_BOLTED)) pr_devel(" hpte_v=%016lx, hpte_r=%016lx\n", hpte_v, hpte_r); @@ -155,7 +155,7 @@ static long pSeries_lpar_hpte_insert(unsigned long hpte_group, */ if (unlikely(lpar_rc != H_SUCCESS)) { if (!(vflags & HPTE_V_BOLTED)) - pr_devel(" lpar err %lu\n", lpar_rc); + pr_devel(" lpar err %ld\n", lpar_rc); return -2; } if (!(vflags & HPTE_V_BOLTED)) @@ -186,7 +186,13 @@ static long pSeries_lpar_hpte_remove(unsigned long hpte_group) (0x1UL << 4), &dummy1, &dummy2); if (lpar_rc == H_SUCCESS) return i; - BUG_ON(lpar_rc != H_NOT_FOUND); + + /* + * The test for adjunct partition is performed before the + * ANDCOND test. H_RESOURCE may be returned, so we need to + * check for that as well. + */ + BUG_ON(lpar_rc != H_NOT_FOUND && lpar_rc != H_RESOURCE); slot_offset++; slot_offset &= 0x7; diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c index 6573808..3d01eee 100644 --- a/arch/powerpc/platforms/pseries/mobility.c +++ b/arch/powerpc/platforms/pseries/mobility.c @@ -37,14 +37,16 @@ struct update_props_workarea { #define UPDATE_DT_NODE 0x02000000 #define ADD_DT_NODE 0x03000000 -static int mobility_rtas_call(int token, char *buf) +#define MIGRATION_SCOPE (1) + +static int mobility_rtas_call(int token, char *buf, s32 scope) { int rc; spin_lock(&rtas_data_buf_lock); memcpy(rtas_data_buf, buf, RTAS_DATA_BUF_SIZE); - rc = rtas_call(token, 2, 1, NULL, rtas_data_buf, 1); + rc = rtas_call(token, 2, 1, NULL, rtas_data_buf, scope); memcpy(buf, rtas_data_buf, RTAS_DATA_BUF_SIZE); spin_unlock(&rtas_data_buf_lock); @@ -123,7 +125,7 @@ static int update_dt_property(struct device_node *dn, struct property **prop, return 0; } -static int update_dt_node(u32 phandle) +static int update_dt_node(u32 phandle, s32 scope) { struct update_props_workarea *upwa; struct device_node *dn; @@ -132,6 +134,7 @@ static int update_dt_node(u32 phandle) char *prop_data; char *rtas_buf; int update_properties_token; + u32 vd; update_properties_token = rtas_token("ibm,update-properties"); if (update_properties_token == RTAS_UNKNOWN_SERVICE) @@ -151,19 +154,31 @@ static int update_dt_node(u32 phandle) upwa->phandle = phandle; do { - rc = mobility_rtas_call(update_properties_token, rtas_buf); + rc = mobility_rtas_call(update_properties_token, rtas_buf, + scope); if (rc < 0) break; prop_data = rtas_buf + sizeof(*upwa); - for (i = 0; i < upwa->nprops; i++) { + /* The first element of the buffer is the path of the node + * being updated in the form of a 8 byte string length + * followed by the string. Skip past this to get to the + * properties being updated. + */ + vd = *prop_data++; + prop_data += vd; + + /* The path we skipped over is counted as one of the elements + * returned so start counting at one. + */ + for (i = 1; i < upwa->nprops; i++) { char *prop_name; - u32 vd; - prop_name = prop_data + 1; + prop_name = prop_data; prop_data += strlen(prop_name) + 1; - vd = *prop_data++; + vd = *(u32 *)prop_data; + prop_data += sizeof(vd); switch (vd) { case 0x00000000: @@ -219,7 +234,7 @@ static int add_dt_node(u32 parent_phandle, u32 drc_index) return rc; } -static int pseries_devicetree_update(void) +int pseries_devicetree_update(s32 scope) { char *rtas_buf; u32 *data; @@ -235,7 +250,7 @@ static int pseries_devicetree_update(void) return -ENOMEM; do { - rc = mobility_rtas_call(update_nodes_token, rtas_buf); + rc = mobility_rtas_call(update_nodes_token, rtas_buf, scope); if (rc && rc != 1) break; @@ -256,7 +271,7 @@ static int pseries_devicetree_update(void) delete_dt_node(phandle); break; case UPDATE_DT_NODE: - update_dt_node(phandle); + update_dt_node(phandle, scope); break; case ADD_DT_NODE: drc_index = *data++; @@ -276,7 +291,7 @@ void post_mobility_fixup(void) int rc; int activate_fw_token; - rc = pseries_devicetree_update(); + rc = pseries_devicetree_update(MIGRATION_SCOPE); if (rc) { printk(KERN_ERR "Initial post-mobility device tree update " "failed: %d\n", rc); @@ -292,7 +307,7 @@ void post_mobility_fixup(void) rc = rtas_call(activate_fw_token, 0, 1, NULL); if (!rc) { - rc = pseries_devicetree_update(); + rc = pseries_devicetree_update(MIGRATION_SCOPE); if (rc) printk(KERN_ERR "Secondary post-mobility device tree " "update failed: %d\n", rc); diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c index e5b0847..6d2f0ab 100644 --- a/arch/powerpc/platforms/pseries/msi.c +++ b/arch/powerpc/platforms/pseries/msi.c @@ -24,26 +24,7 @@ static int query_token, change_token; #define RTAS_RESET_FN 2 #define RTAS_CHANGE_MSI_FN 3 #define RTAS_CHANGE_MSIX_FN 4 - -static struct pci_dn *get_pdn(struct pci_dev *pdev) -{ - struct device_node *dn; - struct pci_dn *pdn; - - dn = pci_device_to_OF_node(pdev); - if (!dn) { - dev_dbg(&pdev->dev, "rtas_msi: No OF device node\n"); - return NULL; - } - - pdn = PCI_DN(dn); - if (!pdn) { - dev_dbg(&pdev->dev, "rtas_msi: No PCI DN\n"); - return NULL; - } - - return pdn; -} +#define RTAS_CHANGE_32MSI_FN 5 /* RTAS Helpers */ @@ -58,7 +39,8 @@ static int rtas_change_msi(struct pci_dn *pdn, u32 func, u32 num_irqs) seq_num = 1; do { - if (func == RTAS_CHANGE_MSI_FN || func == RTAS_CHANGE_MSIX_FN) + if (func == RTAS_CHANGE_MSI_FN || func == RTAS_CHANGE_MSIX_FN || + func == RTAS_CHANGE_32MSI_FN) rc = rtas_call(change_token, 6, 4, rtas_ret, addr, BUID_HI(buid), BUID_LO(buid), func, num_irqs, seq_num); @@ -89,7 +71,7 @@ static void rtas_disable_msi(struct pci_dev *pdev) { struct pci_dn *pdn; - pdn = get_pdn(pdev); + pdn = pci_get_pdn(pdev); if (!pdn) return; @@ -150,7 +132,7 @@ static int check_req(struct pci_dev *pdev, int nvec, char *prop_name) struct pci_dn *pdn; const u32 *req_msi; - pdn = get_pdn(pdev); + pdn = pci_get_pdn(pdev); if (!pdn) return -ENODEV; @@ -392,6 +374,23 @@ static int check_msix_entries(struct pci_dev *pdev) return 0; } +static void rtas_hack_32bit_msi_gen2(struct pci_dev *pdev) +{ + u32 addr_hi, addr_lo; + + /* + * We should only get in here for IODA1 configs. This is based on the + * fact that we using RTAS for MSIs, we don't have the 32 bit MSI RTAS + * support, and we are in a PCIe Gen2 slot. + */ + dev_info(&pdev->dev, + "rtas_msi: No 32 bit MSI firmware support, forcing 32 bit MSI\n"); + pci_read_config_dword(pdev, pdev->msi_cap + PCI_MSI_ADDRESS_HI, &addr_hi); + addr_lo = 0xffff0000 | ((addr_hi >> (48 - 32)) << 4); + pci_write_config_dword(pdev, pdev->msi_cap + PCI_MSI_ADDRESS_LO, addr_lo); + pci_write_config_dword(pdev, pdev->msi_cap + PCI_MSI_ADDRESS_HI, 0); +} + static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec_in, int type) { struct pci_dn *pdn; @@ -399,8 +398,9 @@ static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec_in, int type) struct msi_desc *entry; struct msi_msg msg; int nvec = nvec_in; + int use_32bit_msi_hack = 0; - pdn = get_pdn(pdev); + pdn = pci_get_pdn(pdev); if (!pdn) return -ENODEV; @@ -426,12 +426,31 @@ static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec_in, int type) */ again: if (type == PCI_CAP_ID_MSI) { - rc = rtas_change_msi(pdn, RTAS_CHANGE_MSI_FN, nvec); + if (pdn->force_32bit_msi) { + rc = rtas_change_msi(pdn, RTAS_CHANGE_32MSI_FN, nvec); + if (rc < 0) { + /* + * We only want to run the 32 bit MSI hack below if + * the max bus speed is Gen2 speed + */ + if (pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) + return rc; + + use_32bit_msi_hack = 1; + } + } else + rc = -1; + + if (rc < 0) + rc = rtas_change_msi(pdn, RTAS_CHANGE_MSI_FN, nvec); if (rc < 0) { pr_debug("rtas_msi: trying the old firmware call.\n"); rc = rtas_change_msi(pdn, RTAS_CHANGE_FN, nvec); } + + if (use_32bit_msi_hack && rc > 0) + rtas_hack_32bit_msi_gen2(pdev); } else rc = rtas_change_msi(pdn, RTAS_CHANGE_MSIX_FN, nvec); @@ -512,3 +531,4 @@ static int rtas_msi_init(void) return 0; } arch_initcall(rtas_msi_init); + diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c index 56b864d..5f93856 100644 --- a/arch/powerpc/platforms/pseries/pci.c +++ b/arch/powerpc/platforms/pseries/pci.c @@ -40,7 +40,8 @@ void pcibios_name_device(struct pci_dev *dev) */ dn = pci_device_to_OF_node(dev); if (dn) { - const char *loc_code = of_get_property(dn, "ibm,loc-code", 0); + const char *loc_code = of_get_property(dn, "ibm,loc-code", + NULL); if (loc_code) { int loc_len = strlen(loc_code); if (loc_len < sizeof(dev->dev.name)) { @@ -107,3 +108,56 @@ static void fixup_winbond_82c105(struct pci_dev* dev) } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105, fixup_winbond_82c105); + +int pseries_root_bridge_prepare(struct pci_host_bridge *bridge) +{ + struct device_node *dn, *pdn; + struct pci_bus *bus; + const uint32_t *pcie_link_speed_stats; + + bus = bridge->bus; + + dn = pcibios_get_phb_of_node(bus); + if (!dn) + return 0; + + for (pdn = dn; pdn != NULL; pdn = of_get_next_parent(pdn)) { + pcie_link_speed_stats = (const uint32_t *) of_get_property(pdn, + "ibm,pcie-link-speed-stats", NULL); + if (pcie_link_speed_stats) + break; + } + + of_node_put(pdn); + + if (!pcie_link_speed_stats) { + pr_err("no ibm,pcie-link-speed-stats property\n"); + return 0; + } + + switch (pcie_link_speed_stats[0]) { + case 0x01: + bus->max_bus_speed = PCIE_SPEED_2_5GT; + break; + case 0x02: + bus->max_bus_speed = PCIE_SPEED_5_0GT; + break; + default: + bus->max_bus_speed = PCI_SPEED_UNKNOWN; + break; + } + + switch (pcie_link_speed_stats[1]) { + case 0x01: + bus->cur_bus_speed = PCIE_SPEED_2_5GT; + break; + case 0x02: + bus->cur_bus_speed = PCIE_SPEED_5_0GT; + break; + default: + bus->cur_bus_speed = PCI_SPEED_UNKNOWN; + break; + } + + return 0; +} diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h index e6cc34a..f35787b 100644 --- a/arch/powerpc/platforms/pseries/plpar_wrappers.h +++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h @@ -2,6 +2,7 @@ #define _PSERIES_PLPAR_WRAPPERS_H #include <linux/string.h> +#include <linux/irqflags.h> #include <asm/hvcall.h> #include <asm/paca.h> @@ -41,7 +42,14 @@ static inline long extended_cede_processor(unsigned long latency_hint) u8 old_latency_hint = get_cede_latency_hint(); set_cede_latency_hint(latency_hint); + rc = cede_processor(); +#ifdef CONFIG_TRACE_IRQFLAGS + /* Ensure that H_CEDE returns with IRQs on */ + if (WARN_ON(!(mfmsr() & MSR_EE))) + __hard_irq_enable(); +#endif + set_cede_latency_hint(old_latency_hint); return rc; @@ -50,40 +58,39 @@ static inline long extended_cede_processor(unsigned long latency_hint) static inline long vpa_call(unsigned long flags, unsigned long cpu, unsigned long vpa) { - /* flags are in bits 16-18 (counting from most significant bit) */ - flags = flags << (63 - 18); + flags = flags << H_VPA_FUNC_SHIFT; return plpar_hcall_norets(H_REGISTER_VPA, flags, cpu, vpa); } static inline long unregister_vpa(unsigned long cpu) { - return vpa_call(0x5, cpu, 0); + return vpa_call(H_VPA_DEREG_VPA, cpu, 0); } static inline long register_vpa(unsigned long cpu, unsigned long vpa) { - return vpa_call(0x1, cpu, vpa); + return vpa_call(H_VPA_REG_VPA, cpu, vpa); } static inline long unregister_slb_shadow(unsigned long cpu) { - return vpa_call(0x7, cpu, 0); + return vpa_call(H_VPA_DEREG_SLB, cpu, 0); } static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa) { - return vpa_call(0x3, cpu, vpa); + return vpa_call(H_VPA_REG_SLB, cpu, vpa); } static inline long unregister_dtl(unsigned long cpu) { - return vpa_call(0x6, cpu, 0); + return vpa_call(H_VPA_DEREG_DTL, cpu, 0); } static inline long register_dtl(unsigned long cpu, unsigned long vpa) { - return vpa_call(0x2, cpu, vpa); + return vpa_call(H_VPA_REG_DTL, cpu, vpa); } static inline long plpar_page_set_loaned(unsigned long vpa) @@ -304,4 +311,14 @@ static inline long disable_reloc_on_exceptions(void) { return plpar_set_mode(0, 3, 0, 0); } +static inline long plapr_set_ciabr(unsigned long ciabr) +{ + return plpar_set_mode(0, 1, ciabr, 0); +} + +static inline long plapr_set_watchpoint0(unsigned long dawr0, unsigned long dawrx0) +{ + return plpar_set_mode(0, 2, dawr0, dawrx0); +} + #endif /* _PSERIES_PLPAR_WRAPPERS_H */ diff --git a/arch/powerpc/platforms/pseries/processor_idle.c b/arch/powerpc/platforms/pseries/processor_idle.c index 4d806b4..4644efa0 100644 --- a/arch/powerpc/platforms/pseries/processor_idle.c +++ b/arch/powerpc/platforms/pseries/processor_idle.c @@ -23,8 +23,8 @@ #include "pseries.h" struct cpuidle_driver pseries_idle_driver = { - .name = "pseries_idle", - .owner = THIS_MODULE, + .name = "pseries_idle", + .owner = THIS_MODULE, }; #define MAX_IDLE_STATE_COUNT 2 @@ -33,10 +33,8 @@ static int max_idle_state = MAX_IDLE_STATE_COUNT - 1; static struct cpuidle_device __percpu *pseries_cpuidle_devices; static struct cpuidle_state *cpuidle_state_table; -static inline void idle_loop_prolog(unsigned long *in_purr, ktime_t *kt_before) +static inline void idle_loop_prolog(unsigned long *in_purr) { - - *kt_before = ktime_get(); *in_purr = mfspr(SPRN_PURR); /* * Indicate to the HV that we are idle. Now would be @@ -45,12 +43,10 @@ static inline void idle_loop_prolog(unsigned long *in_purr, ktime_t *kt_before) get_lppaca()->idle = 1; } -static inline s64 idle_loop_epilog(unsigned long in_purr, ktime_t kt_before) +static inline void idle_loop_epilog(unsigned long in_purr) { get_lppaca()->wait_state_cycles += mfspr(SPRN_PURR) - in_purr; get_lppaca()->idle = 0; - - return ktime_to_us(ktime_sub(ktime_get(), kt_before)); } static int snooze_loop(struct cpuidle_device *dev, @@ -58,10 +54,9 @@ static int snooze_loop(struct cpuidle_device *dev, int index) { unsigned long in_purr; - ktime_t kt_before; int cpu = dev->cpu; - idle_loop_prolog(&in_purr, &kt_before); + idle_loop_prolog(&in_purr); local_irq_enable(); set_thread_flag(TIF_POLLING_NRFLAG); @@ -75,8 +70,8 @@ static int snooze_loop(struct cpuidle_device *dev, clear_thread_flag(TIF_POLLING_NRFLAG); smp_mb(); - dev->last_residency = - (int)idle_loop_epilog(in_purr, kt_before); + idle_loop_epilog(in_purr); + return index; } @@ -102,9 +97,8 @@ static int dedicated_cede_loop(struct cpuidle_device *dev, int index) { unsigned long in_purr; - ktime_t kt_before; - idle_loop_prolog(&in_purr, &kt_before); + idle_loop_prolog(&in_purr); get_lppaca()->donate_dedicated_cpu = 1; ppc64_runlatch_off(); @@ -112,8 +106,9 @@ static int dedicated_cede_loop(struct cpuidle_device *dev, check_and_cede_processor(); get_lppaca()->donate_dedicated_cpu = 0; - dev->last_residency = - (int)idle_loop_epilog(in_purr, kt_before); + + idle_loop_epilog(in_purr); + return index; } @@ -122,9 +117,8 @@ static int shared_cede_loop(struct cpuidle_device *dev, int index) { unsigned long in_purr; - ktime_t kt_before; - idle_loop_prolog(&in_purr, &kt_before); + idle_loop_prolog(&in_purr); /* * Yield the processor to the hypervisor. We return if @@ -135,8 +129,8 @@ static int shared_cede_loop(struct cpuidle_device *dev, */ check_and_cede_processor(); - dev->last_residency = - (int)idle_loop_epilog(in_purr, kt_before); + idle_loop_epilog(in_purr); + return index; } diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h index 9a3dda0..c2a3a25 100644 --- a/arch/powerpc/platforms/pseries/pseries.h +++ b/arch/powerpc/platforms/pseries/pseries.h @@ -19,7 +19,10 @@ extern void request_event_sources_irqs(struct device_node *np, #include <linux/of.h> -extern void __init fw_feature_init(const char *hypertas, unsigned long len); +extern void __init fw_hypertas_feature_init(const char *hypertas, + unsigned long len); +extern void __init fw_vec5_feature_init(const char *hypertas, + unsigned long len); struct pt_regs; @@ -60,4 +63,8 @@ extern int dlpar_detach_node(struct device_node *); /* Snooze Delay, pseries_idle */ DECLARE_PER_CPU(long, smt_snooze_delay); +/* PCI root bridge prepare function override for pseries */ +struct pci_host_bridge; +int pseries_root_bridge_prepare(struct pci_host_bridge *bridge); + #endif /* _PSERIES_PSERIES_H */ diff --git a/arch/powerpc/platforms/pseries/pseries_energy.c b/arch/powerpc/platforms/pseries/pseries_energy.c index af281dc..a91e6da 100644 --- a/arch/powerpc/platforms/pseries/pseries_energy.c +++ b/arch/powerpc/platforms/pseries/pseries_energy.c @@ -21,6 +21,7 @@ #include <asm/cputhreads.h> #include <asm/page.h> #include <asm/hvcall.h> +#include <asm/firmware.h> #define MODULE_VERS "1.0" @@ -32,40 +33,6 @@ static int sysfs_entries; /* Helper routines */ -/* - * Routine to detect firmware support for hcall - * return 1 if H_BEST_ENERGY is supported - * else return 0 - */ - -static int check_for_h_best_energy(void) -{ - struct device_node *rtas = NULL; - const char *hypertas, *s; - int length; - int rc = 0; - - rtas = of_find_node_by_path("/rtas"); - if (!rtas) - return 0; - - hypertas = of_get_property(rtas, "ibm,hypertas-functions", &length); - if (!hypertas) { - of_node_put(rtas); - return 0; - } - - /* hypertas will have list of strings with hcall names */ - for (s = hypertas; s < hypertas + length; s += strlen(s) + 1) { - if (!strncmp("hcall-best-energy-1", s, 19)) { - rc = 1; /* Found the string */ - break; - } - } - of_node_put(rtas); - return rc; -} - /* Helper Routines to convert between drc_index to cpu numbers */ static u32 cpu_to_drc_index(int cpu) @@ -262,7 +229,7 @@ static int __init pseries_energy_init(void) int cpu, err; struct device *cpu_dev; - if (!check_for_h_best_energy()) { + if (!firmware_has_feature(FW_FEATURE_BEST_ENERGY)) { printk(KERN_INFO "Hypercall H_BEST_ENERGY not supported\n"); return 0; } diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c index d6491bd..f93cdf5 100644 --- a/arch/powerpc/platforms/pseries/reconfig.c +++ b/arch/powerpc/platforms/pseries/reconfig.c @@ -452,7 +452,7 @@ static int proc_ppc64_create_ofdt(void) ent = proc_create("powerpc/ofdt", S_IWUSR, NULL, &ofdt_fops); if (ent) - ent->size = 0; + proc_set_size(ent, 0); return 0; } diff --git a/arch/powerpc/platforms/pseries/scanlog.c b/arch/powerpc/platforms/pseries/scanlog.c index 5544572..b502ab6 100644 --- a/arch/powerpc/platforms/pseries/scanlog.c +++ b/arch/powerpc/platforms/pseries/scanlog.c @@ -41,21 +41,16 @@ static unsigned int ibm_scan_log_dump; /* RTAS token */ -static struct proc_dir_entry *proc_ppc64_scan_log_dump; /* The proc file */ +static unsigned int *scanlog_buffer; /* The data buffer */ static ssize_t scanlog_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct inode * inode = file->f_path.dentry->d_inode; - struct proc_dir_entry *dp; - unsigned int *data; + unsigned int *data = scanlog_buffer; int status; unsigned long len, off; unsigned int wait_time; - dp = PDE(inode); - data = (unsigned int *)dp->data; - if (count > RTAS_DATA_BUF_SIZE) count = RTAS_DATA_BUF_SIZE; @@ -139,8 +134,7 @@ static ssize_t scanlog_write(struct file * file, const char __user * buf, static int scanlog_open(struct inode * inode, struct file * file) { - struct proc_dir_entry *dp = PDE(inode); - unsigned int *data = (unsigned int *)dp->data; + unsigned int *data = scanlog_buffer; if (data[0] != 0) { /* This imperfect test stops a second copy of the @@ -156,11 +150,9 @@ static int scanlog_open(struct inode * inode, struct file * file) static int scanlog_release(struct inode * inode, struct file * file) { - struct proc_dir_entry *dp = PDE(inode); - unsigned int *data = (unsigned int *)dp->data; + unsigned int *data = scanlog_buffer; data[0] = 0; - return 0; } @@ -176,7 +168,6 @@ const struct file_operations scanlog_fops = { static int __init scanlog_init(void) { struct proc_dir_entry *ent; - void *data; int err = -ENOMEM; ibm_scan_log_dump = rtas_token("ibm,scan-log-dump"); @@ -184,29 +175,24 @@ static int __init scanlog_init(void) return -ENODEV; /* Ideally we could allocate a buffer < 4G */ - data = kzalloc(RTAS_DATA_BUF_SIZE, GFP_KERNEL); - if (!data) + scanlog_buffer = kzalloc(RTAS_DATA_BUF_SIZE, GFP_KERNEL); + if (!scanlog_buffer) goto err; - ent = proc_create_data("powerpc/rtas/scan-log-dump", S_IRUSR, NULL, - &scanlog_fops, data); + ent = proc_create("powerpc/rtas/scan-log-dump", S_IRUSR, NULL, + &scanlog_fops); if (!ent) goto err; - - proc_ppc64_scan_log_dump = ent; - return 0; err: - kfree(data); + kfree(scanlog_buffer); return err; } static void __exit scanlog_cleanup(void) { - if (proc_ppc64_scan_log_dump) { - kfree(proc_ppc64_scan_log_dump->data); - remove_proc_entry("scan-log-dump", proc_ppc64_scan_log_dump->parent); - } + remove_proc_entry("powerpc/rtas/scan-log-dump", NULL); + kfree(scanlog_buffer); } module_init(scanlog_init); diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index ca55882..c11c823 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -65,6 +65,7 @@ #include <asm/smp.h> #include <asm/firmware.h> #include <asm/eeh.h> +#include <asm/reg.h> #include "plpar_wrappers.h" #include "pseries.h" @@ -281,7 +282,7 @@ static struct notifier_block pci_dn_reconfig_nb = { struct kmem_cache *dtl_cache; -#ifdef CONFIG_VIRT_CPU_ACCOUNTING +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE /* * Allocate space for the dispatch trace log for all possible cpus * and register the buffers with the hypervisor. This is used for @@ -332,12 +333,12 @@ static int alloc_dispatch_logs(void) return 0; } -#else /* !CONFIG_VIRT_CPU_ACCOUNTING */ +#else /* !CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ static inline int alloc_dispatch_logs(void) { return 0; } -#endif /* CONFIG_VIRT_CPU_ACCOUNTING */ +#endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ static int alloc_dispatch_log_kmem_cache(void) { @@ -375,7 +376,7 @@ static void pSeries_idle(void) * to ever be a problem in practice we can move this into a kernel thread to * finish off the process later in boot. */ -static int __init pSeries_enable_reloc_on_exc(void) +long pSeries_enable_reloc_on_exc(void) { long rc; unsigned int delay, total_delay = 0; @@ -397,9 +398,9 @@ static int __init pSeries_enable_reloc_on_exc(void) mdelay(delay); } } +EXPORT_SYMBOL(pSeries_enable_reloc_on_exc); -#ifdef CONFIG_KEXEC -static long pSeries_disable_reloc_on_exc(void) +long pSeries_disable_reloc_on_exc(void) { long rc; @@ -410,7 +411,9 @@ static long pSeries_disable_reloc_on_exc(void) mdelay(get_longbusy_msecs(rc)); } } +EXPORT_SYMBOL(pSeries_disable_reloc_on_exc); +#ifdef CONFIG_KEXEC static void pSeries_machine_kexec(struct kimage *image) { long rc; @@ -463,6 +466,8 @@ static void __init pSeries_setup_arch(void) else ppc_md.enable_pmcs = power4_enable_pmcs; + ppc_md.pcibios_root_bridge_prepare = pseries_root_bridge_prepare; + if (firmware_has_feature(FW_FEATURE_SET_MODE)) { long rc; if ((rc = pSeries_enable_reloc_on_exc()) != H_SUCCESS) { @@ -498,6 +503,14 @@ static int pseries_set_xdabr(unsigned long dabr, unsigned long dabrx) return plpar_hcall_norets(H_SET_XDABR, dabr, dabrx); } +static int pseries_set_dawr(unsigned long dawr, unsigned long dawrx) +{ + /* PAPR says we can't set HYP */ + dawrx &= ~DAWRX_HYP; + + return plapr_set_watchpoint0(dawr, dawrx); +} + #define CMO_CHARACTERISTICS_TOKEN 44 #define CMO_MAXLENGTH 1026 @@ -604,6 +617,9 @@ static void __init pSeries_init_early(void) else if (firmware_has_feature(FW_FEATURE_DABR)) ppc_md.set_dabr = pseries_set_dabr; + if (firmware_has_feature(FW_FEATURE_SET_MODE)) + ppc_md.set_dawr = pseries_set_dawr; + pSeries_cmo_feature_init(); iommu_init_early_pSeries(); @@ -614,25 +630,39 @@ static void __init pSeries_init_early(void) * Called very early, MMU is off, device-tree isn't unflattened */ -static int __init pSeries_probe_hypertas(unsigned long node, - const char *uname, int depth, - void *data) +static int __init pseries_probe_fw_features(unsigned long node, + const char *uname, int depth, + void *data) { - const char *hypertas; + const char *prop; unsigned long len; + static int hypertas_found; + static int vec5_found; - if (depth != 1 || - (strcmp(uname, "rtas") != 0 && strcmp(uname, "rtas@0") != 0)) + if (depth != 1) return 0; - hypertas = of_get_flat_dt_prop(node, "ibm,hypertas-functions", &len); - if (!hypertas) - return 1; + if (!strcmp(uname, "rtas") || !strcmp(uname, "rtas@0")) { + prop = of_get_flat_dt_prop(node, "ibm,hypertas-functions", + &len); + if (prop) { + powerpc_firmware_features |= FW_FEATURE_LPAR; + fw_hypertas_feature_init(prop, len); + } - powerpc_firmware_features |= FW_FEATURE_LPAR; - fw_feature_init(hypertas, len); + hypertas_found = 1; + } - return 1; + if (!strcmp(uname, "chosen")) { + prop = of_get_flat_dt_prop(node, "ibm,architecture-vec-5", + &len); + if (prop) + fw_vec5_feature_init(prop, len); + + vec5_found = 1; + } + + return hypertas_found && vec5_found; } static int __init pSeries_probe(void) @@ -655,7 +685,7 @@ static int __init pSeries_probe(void) pr_debug("pSeries detected, looking for LPAR capability...\n"); /* Now try to figure out if we are running on LPAR */ - of_scan_flat_dt(pSeries_probe_hypertas, NULL); + of_scan_flat_dt(pseries_probe_fw_features, NULL); if (firmware_has_feature(FW_FEATURE_LPAR)) hpte_init_lpar(); diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index ffd15e8..ca2d1f6 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -42,6 +42,7 @@ #include <asm/vdso_datapage.h> #include <asm/cputhreads.h> #include <asm/xics.h> +#include <asm/dbell.h> #include "plpar_wrappers.h" #include "pseries.h" @@ -54,6 +55,11 @@ */ static cpumask_var_t of_spin_mask; +/* + * If we multiplex IPI mechanisms, store the appropriate XICS IPI mechanism here + */ +static void (*xics_cause_ipi)(int cpu, unsigned long data); + /* Query where a cpu is now. Return codes #defined in plpar_wrappers.h */ int smp_query_cpu_stopped(unsigned int pcpu) { @@ -137,6 +143,8 @@ static void smp_xics_setup_cpu(int cpu) { if (cpu != boot_cpuid) xics_setup_cpu(); + if (cpu_has_feature(CPU_FTR_DBELL)) + doorbell_setup_this_cpu(); if (firmware_has_feature(FW_FEATURE_SPLPAR)) vpa_init(cpu); @@ -179,6 +187,27 @@ static int smp_pSeries_kick_cpu(int nr) return 0; } +/* Only used on systems that support multiple IPI mechanisms */ +static void pSeries_cause_ipi_mux(int cpu, unsigned long data) +{ + if (cpumask_test_cpu(cpu, cpu_sibling_mask(smp_processor_id()))) + doorbell_cause_ipi(cpu, data); + else + xics_cause_ipi(cpu, data); +} + +static __init int pSeries_smp_probe(void) +{ + int ret = xics_smp_probe(); + + if (cpu_has_feature(CPU_FTR_DBELL)) { + xics_cause_ipi = smp_ops->cause_ipi; + smp_ops->cause_ipi = pSeries_cause_ipi_mux; + } + + return ret; +} + static struct smp_ops_t pSeries_mpic_smp_ops = { .message_pass = smp_mpic_message_pass, .probe = smp_mpic_probe, @@ -188,8 +217,8 @@ static struct smp_ops_t pSeries_mpic_smp_ops = { static struct smp_ops_t pSeries_xics_smp_ops = { .message_pass = NULL, /* Use smp_muxed_ipi_message_pass */ - .cause_ipi = NULL, /* Filled at runtime by xics_smp_probe() */ - .probe = xics_smp_probe, + .cause_ipi = NULL, /* Filled at runtime by pSeries_smp_probe() */ + .probe = pSeries_smp_probe, .kick_cpu = smp_pSeries_kick_cpu, .setup_cpu = smp_xics_setup_cpu, .cpu_bootable = smp_generic_cpu_bootable, diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c index 47226e0..5f997e7 100644 --- a/arch/powerpc/platforms/pseries/suspend.c +++ b/arch/powerpc/platforms/pseries/suspend.c @@ -16,6 +16,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include <linux/cpu.h> #include <linux/delay.h> #include <linux/suspend.h> #include <linux/stat.h> @@ -126,11 +127,15 @@ static ssize_t store_hibernate(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { + cpumask_var_t offline_mask; int rc; if (!capable(CAP_SYS_ADMIN)) return -EPERM; + if (!alloc_cpumask_var(&offline_mask, GFP_TEMPORARY)) + return -ENOMEM; + stream_id = simple_strtoul(buf, NULL, 16); do { @@ -140,15 +145,32 @@ static ssize_t store_hibernate(struct device *dev, } while (rc == -EAGAIN); if (!rc) { + /* All present CPUs must be online */ + cpumask_andnot(offline_mask, cpu_present_mask, + cpu_online_mask); + rc = rtas_online_cpus_mask(offline_mask); + if (rc) { + pr_err("%s: Could not bring present CPUs online.\n", + __func__); + goto out; + } + stop_topology_update(); rc = pm_suspend(PM_SUSPEND_MEM); start_topology_update(); + + /* Take down CPUs not online prior to suspend */ + if (!rtas_offline_cpus_mask(offline_mask)) + pr_warn("%s: Could not restore CPUs to offline " + "state.\n", __func__); } stream_id = 0; if (!rc) rc = count; +out: + free_cpumask_var(offline_mask); return rc; } diff --git a/arch/powerpc/platforms/wsp/Kconfig b/arch/powerpc/platforms/wsp/Kconfig index a07da1e..8066ddf 100644 --- a/arch/powerpc/platforms/wsp/Kconfig +++ b/arch/powerpc/platforms/wsp/Kconfig @@ -9,7 +9,6 @@ config PPC_WSP select PCI select PPC_IO_WORKAROUNDS if PCI select PPC_INDIRECT_PIO if PCI - select PPC_WSP_COPRO default n menu "WSP platform selection" @@ -27,7 +26,3 @@ config PPC_CHROMA select OF_DYNAMIC endmenu - -config PPC_A2_DD2 - bool "Support for DD2 based A2/WSP systems" - depends on PPC_A2 diff --git a/arch/powerpc/platforms/wsp/ics.c b/arch/powerpc/platforms/wsp/ics.c index 97fe82e..2d3b1dd 100644 --- a/arch/powerpc/platforms/wsp/ics.c +++ b/arch/powerpc/platforms/wsp/ics.c @@ -361,7 +361,7 @@ static int wsp_chip_set_affinity(struct irq_data *d, xive = xive_set_server(xive, get_irq_server(ics, hw_irq)); wsp_ics_set_xive(ics, hw_irq, xive); - return 0; + return IRQ_SET_MASK_OK; } static struct irq_chip wsp_irq_chip = { diff --git a/arch/powerpc/platforms/wsp/wsp_pci.c b/arch/powerpc/platforms/wsp/wsp_pci.c index 8e22f56..62cb527 100644 --- a/arch/powerpc/platforms/wsp/wsp_pci.c +++ b/arch/powerpc/platforms/wsp/wsp_pci.c @@ -502,7 +502,7 @@ static void __init wsp_pcie_configure_hw(struct pci_controller *hose) (~(hose->mem_resources[0].end - hose->mem_resources[0].start)) & 0x3ffffff0000ul); out_be64(hose->cfg_data + PCIE_REG_M32A_START_ADDR, - (hose->mem_resources[0].start - hose->pci_mem_offset) | 1); + (hose->mem_resources[0].start - hose->mem_offset[0]) | 1); /* Clear all TVT entries * |