From dc34e7e1a701134c2639dc7af78dc91055616477 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Mon, 1 Jul 2013 00:01:32 +0400 Subject: libata: move 'struct ata_taskfile' and friends from ata.h to libata.h Move 'struct ata_taskfile', ata_prot_flags() and their friends from to . They were misplaced from the beginning, as should cover ATA/ATAPI and related standards only -- to which the aforementioned structure and function have only remote relation. I would have moved 'enum ata_tf_protocols' closely related to 'struct ata_taskfile' but it unfortunately gets used by 'drivers/ide/ide-ioctls.c'... Signed-off-by: Sergei Shtylyov Signed-off-by: Tejun Heo diff --git a/include/linux/ata.h b/include/linux/ata.h index ee0bd95..f63fb1a 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -446,22 +446,6 @@ enum { SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */ SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */ SERR_DEV_XCHG = (1 << 26), /* device exchanged */ - - /* struct ata_taskfile flags */ - ATA_TFLAG_LBA48 = (1 << 0), /* enable 48-bit LBA and "HOB" */ - ATA_TFLAG_ISADDR = (1 << 1), /* enable r/w to nsect/lba regs */ - ATA_TFLAG_DEVICE = (1 << 2), /* enable r/w to device reg */ - ATA_TFLAG_WRITE = (1 << 3), /* data dir: host->dev==1 (write) */ - ATA_TFLAG_LBA = (1 << 4), /* enable LBA */ - ATA_TFLAG_FUA = (1 << 5), /* enable FUA */ - ATA_TFLAG_POLLING = (1 << 6), /* set nIEN to 1 and use polling */ - - /* protocol flags */ - ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ - ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ - ATA_PROT_FLAG_DATA = ATA_PROT_FLAG_PIO | ATA_PROT_FLAG_DMA, - ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ - ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ }; enum ata_tf_protocols { @@ -488,83 +472,6 @@ struct ata_bmdma_prd { __le32 flags_len; }; -struct ata_taskfile { - unsigned long flags; /* ATA_TFLAG_xxx */ - u8 protocol; /* ATA_PROT_xxx */ - - u8 ctl; /* control reg */ - - u8 hob_feature; /* additional data */ - u8 hob_nsect; /* to support LBA48 */ - u8 hob_lbal; - u8 hob_lbam; - u8 hob_lbah; - - u8 feature; - u8 nsect; - u8 lbal; - u8 lbam; - u8 lbah; - - u8 device; - - u8 command; /* IO operation */ -}; - -/* - * protocol tests - */ -static inline unsigned int ata_prot_flags(u8 prot) -{ - switch (prot) { - case ATA_PROT_NODATA: - return 0; - case ATA_PROT_PIO: - return ATA_PROT_FLAG_PIO; - case ATA_PROT_DMA: - return ATA_PROT_FLAG_DMA; - case ATA_PROT_NCQ: - return ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ; - case ATAPI_PROT_NODATA: - return ATA_PROT_FLAG_ATAPI; - case ATAPI_PROT_PIO: - return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO; - case ATAPI_PROT_DMA: - return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA; - } - return 0; -} - -static inline int ata_is_atapi(u8 prot) -{ - return ata_prot_flags(prot) & ATA_PROT_FLAG_ATAPI; -} - -static inline int ata_is_nodata(u8 prot) -{ - return !(ata_prot_flags(prot) & ATA_PROT_FLAG_DATA); -} - -static inline int ata_is_pio(u8 prot) -{ - return ata_prot_flags(prot) & ATA_PROT_FLAG_PIO; -} - -static inline int ata_is_dma(u8 prot) -{ - return ata_prot_flags(prot) & ATA_PROT_FLAG_DMA; -} - -static inline int ata_is_ncq(u8 prot) -{ - return ata_prot_flags(prot) & ATA_PROT_FLAG_NCQ; -} - -static inline int ata_is_data(u8 prot) -{ - return ata_prot_flags(prot) & ATA_PROT_FLAG_DATA; -} - /* * id tests */ @@ -1060,15 +967,6 @@ static inline unsigned ata_set_lba_range_entries(void *_buffer, return used_bytes; } -static inline int is_multi_taskfile(struct ata_taskfile *tf) -{ - return (tf->command == ATA_CMD_READ_MULTI) || - (tf->command == ATA_CMD_WRITE_MULTI) || - (tf->command == ATA_CMD_READ_MULTI_EXT) || - (tf->command == ATA_CMD_WRITE_MULTI_EXT) || - (tf->command == ATA_CMD_WRITE_MULTI_FUA_EXT); -} - static inline bool ata_ok(u8 status) { return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) diff --git a/include/linux/libata.h b/include/linux/libata.h index 4ea55bb..283d66b 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -138,6 +138,22 @@ enum { ATA_SHT_THIS_ID = -1, ATA_SHT_USE_CLUSTERING = 1, + /* struct ata_taskfile flags */ + ATA_TFLAG_LBA48 = (1 << 0), /* enable 48-bit LBA and "HOB" */ + ATA_TFLAG_ISADDR = (1 << 1), /* enable r/w to nsect/lba regs */ + ATA_TFLAG_DEVICE = (1 << 2), /* enable r/w to device reg */ + ATA_TFLAG_WRITE = (1 << 3), /* data dir: host->dev==1 (write) */ + ATA_TFLAG_LBA = (1 << 4), /* enable LBA */ + ATA_TFLAG_FUA = (1 << 5), /* enable FUA */ + ATA_TFLAG_POLLING = (1 << 6), /* set nIEN to 1 and use polling */ + + /* protocol flags */ + ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */ + ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */ + ATA_PROT_FLAG_DATA = ATA_PROT_FLAG_PIO | ATA_PROT_FLAG_DMA, + ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */ + ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */ + /* struct ata_device stuff */ ATA_DFLAG_LBA = (1 << 0), /* device supports LBA */ ATA_DFLAG_LBA48 = (1 << 1), /* device supports LBA48 */ @@ -518,6 +534,29 @@ enum sw_activity { BLINK_OFF, }; +struct ata_taskfile { + unsigned long flags; /* ATA_TFLAG_xxx */ + u8 protocol; /* ATA_PROT_xxx */ + + u8 ctl; /* control reg */ + + u8 hob_feature; /* additional data */ + u8 hob_nsect; /* to support LBA48 */ + u8 hob_lbal; + u8 hob_lbam; + u8 hob_lbah; + + u8 feature; + u8 nsect; + u8 lbal; + u8 lbam; + u8 lbah; + + u8 device; + + u8 command; /* IO operation */ +}; + #ifdef CONFIG_ATA_SFF struct ata_ioports { void __iomem *cmd_addr; @@ -959,6 +998,69 @@ extern const unsigned long sata_deb_timing_long[]; extern struct ata_port_operations ata_dummy_port_ops; extern const struct ata_port_info ata_dummy_port_info; +/* + * protocol tests + */ +static inline unsigned int ata_prot_flags(u8 prot) +{ + switch (prot) { + case ATA_PROT_NODATA: + return 0; + case ATA_PROT_PIO: + return ATA_PROT_FLAG_PIO; + case ATA_PROT_DMA: + return ATA_PROT_FLAG_DMA; + case ATA_PROT_NCQ: + return ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ; + case ATAPI_PROT_NODATA: + return ATA_PROT_FLAG_ATAPI; + case ATAPI_PROT_PIO: + return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO; + case ATAPI_PROT_DMA: + return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA; + } + return 0; +} + +static inline int ata_is_atapi(u8 prot) +{ + return ata_prot_flags(prot) & ATA_PROT_FLAG_ATAPI; +} + +static inline int ata_is_nodata(u8 prot) +{ + return !(ata_prot_flags(prot) & ATA_PROT_FLAG_DATA); +} + +static inline int ata_is_pio(u8 prot) +{ + return ata_prot_flags(prot) & ATA_PROT_FLAG_PIO; +} + +static inline int ata_is_dma(u8 prot) +{ + return ata_prot_flags(prot) & ATA_PROT_FLAG_DMA; +} + +static inline int ata_is_ncq(u8 prot) +{ + return ata_prot_flags(prot) & ATA_PROT_FLAG_NCQ; +} + +static inline int ata_is_data(u8 prot) +{ + return ata_prot_flags(prot) & ATA_PROT_FLAG_DATA; +} + +static inline int is_multi_taskfile(struct ata_taskfile *tf) +{ + return (tf->command == ATA_CMD_READ_MULTI) || + (tf->command == ATA_CMD_WRITE_MULTI) || + (tf->command == ATA_CMD_READ_MULTI_EXT) || + (tf->command == ATA_CMD_WRITE_MULTI_EXT) || + (tf->command == ATA_CMD_WRITE_MULTI_FUA_EXT); +} + static inline const unsigned long * sata_ehc_deb_timing(struct ata_eh_context *ehc) { -- cgit v0.10.2 From 88ba5478837098b71573bb7d6002be33156ea7e4 Mon Sep 17 00:00:00 2001 From: Aaron Lu Date: Thu, 25 Jul 2013 13:47:02 +0800 Subject: libata: acpi: remove dead code for ata_acpi_(un)bind Commit 7381fe737 "libata-acpi: remove redundent code for power resource handling" removed ata_acpi_(un)bind but left their prototypes in libata.h, so remove them. Signed-off-by: Aaron Lu Signed-off-by: Tejun Heo diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 577d902..cc8a6e8 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -120,8 +120,6 @@ extern void ata_acpi_on_disable(struct ata_device *dev); extern void ata_acpi_set_state(struct ata_port *ap, pm_message_t state); extern int ata_acpi_register(void); extern void ata_acpi_unregister(void); -extern void ata_acpi_bind(struct ata_device *dev); -extern void ata_acpi_unbind(struct ata_device *dev); extern void ata_acpi_hotplug_init(struct ata_host *host); #else static inline void ata_acpi_dissociate(struct ata_host *host) { } @@ -133,8 +131,6 @@ static inline void ata_acpi_set_state(struct ata_port *ap, pm_message_t state) { } static inline int ata_acpi_register(void) { return 0; } static inline void ata_acpi_unregister(void) { } -static inline void ata_acpi_bind(struct ata_device *dev) { } -static inline void ata_acpi_unbind(struct ata_device *dev) { } static inline void ata_acpi_hotplug_init(struct ata_host *host) {} #endif -- cgit v0.10.2 From e8038ebbd51df65bf5f4728c190397041a42e903 Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Mon, 29 Jul 2013 12:21:21 -0300 Subject: sata_mv: Remove unneeded forward declaration These forward declarations are no longer needed, and are probably historical left-over. Signed-off-by: Ezequiel Garcia Signed-off-by: Tejun Heo diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 35c6b6d..10ea99a 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -4428,9 +4428,6 @@ static int mv_pci_device_resume(struct pci_dev *pdev) #endif #endif -static int mv_platform_probe(struct platform_device *pdev); -static int mv_platform_remove(struct platform_device *pdev); - static int __init mv_init(void) { int rc = -ENODEV; -- cgit v0.10.2 From 61b8c345aa8c50c6a99a90560a107d02124f0293 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Tue, 30 Jul 2013 17:16:05 +0900 Subject: ata: use dev_get_platdata() Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han Signed-off-by: Tejun Heo diff --git a/drivers/ata/pata_at32.c b/drivers/ata/pata_at32.c index 8d493b4..d59d523 100644 --- a/drivers/ata/pata_at32.c +++ b/drivers/ata/pata_at32.c @@ -271,7 +271,7 @@ static int __init pata_at32_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct at32_ide_info *info; - struct ide_platform_data *board = pdev->dev.platform_data; + struct ide_platform_data *board = dev_get_platdata(&pdev->dev); struct resource *res; int irq; diff --git a/drivers/ata/pata_at91.c b/drivers/ata/pata_at91.c index 5364f97..d63ee8f 100644 --- a/drivers/ata/pata_at91.c +++ b/drivers/ata/pata_at91.c @@ -315,7 +315,7 @@ static struct ata_port_operations pata_at91_port_ops = { static int pata_at91_probe(struct platform_device *pdev) { - struct at91_cf_data *board = pdev->dev.platform_data; + struct at91_cf_data *board = dev_get_platdata(&pdev->dev); struct device *dev = &pdev->dev; struct at91_ide_info *info; struct resource *mem_res; diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c index dcc6b24..1ec53f8 100644 --- a/drivers/ata/pata_ixp4xx_cf.c +++ b/drivers/ata/pata_ixp4xx_cf.c @@ -48,7 +48,7 @@ static unsigned int ixp4xx_mmio_data_xfer(struct ata_device *dev, u16 *buf16 = (u16 *) buf; struct ata_port *ap = dev->link->ap; void __iomem *mmio = ap->ioaddr.data_addr; - struct ixp4xx_pata_data *data = ap->host->dev->platform_data; + struct ixp4xx_pata_data *data = dev_get_platdata(ap->host->dev); /* set the expansion bus in 16bit mode and restore * 8 bit mode after the transaction. @@ -143,7 +143,7 @@ static int ixp4xx_pata_probe(struct platform_device *pdev) struct resource *cs0, *cs1; struct ata_host *host; struct ata_port *ap; - struct ixp4xx_pata_data *data = pdev->dev.platform_data; + struct ixp4xx_pata_data *data = dev_get_platdata(&pdev->dev); cs0 = platform_get_resource(pdev, IORESOURCE_MEM, 0); cs1 = platform_get_resource(pdev, IORESOURCE_MEM, 1); diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c index e73bef3..c51bbb9 100644 --- a/drivers/ata/pata_octeon_cf.c +++ b/drivers/ata/pata_octeon_cf.c @@ -1037,7 +1037,7 @@ static void octeon_cf_shutdown(struct device *dev) union cvmx_mio_boot_dma_cfgx dma_cfg; union cvmx_mio_boot_dma_intx dma_int; - struct octeon_cf_port *cf_port = dev->platform_data; + struct octeon_cf_port *cf_port = dev_get_platdata(dev); if (cf_port->dma_base) { /* Stop and clear the dma engine. */ diff --git a/drivers/ata/pata_platform.c b/drivers/ata/pata_platform.c index 71e0937..0279488 100644 --- a/drivers/ata/pata_platform.c +++ b/drivers/ata/pata_platform.c @@ -180,7 +180,7 @@ static int pata_platform_probe(struct platform_device *pdev) struct resource *io_res; struct resource *ctl_res; struct resource *irq_res; - struct pata_platform_info *pp_info = pdev->dev.platform_data; + struct pata_platform_info *pp_info = dev_get_platdata(&pdev->dev); /* * Simple resource validation .. diff --git a/drivers/ata/pata_pxa.c b/drivers/ata/pata_pxa.c index 942ef94..a6f05ac 100644 --- a/drivers/ata/pata_pxa.c +++ b/drivers/ata/pata_pxa.c @@ -238,7 +238,7 @@ static int pxa_ata_probe(struct platform_device *pdev) struct resource *ctl_res; struct resource *dma_res; struct resource *irq_res; - struct pata_pxa_pdata *pdata = pdev->dev.platform_data; + struct pata_pxa_pdata *pdata = dev_get_platdata(&pdev->dev); int ret = 0; /* diff --git a/drivers/ata/pata_samsung_cf.c b/drivers/ata/pata_samsung_cf.c index 6ef27e9..951aa95 100644 --- a/drivers/ata/pata_samsung_cf.c +++ b/drivers/ata/pata_samsung_cf.c @@ -475,7 +475,7 @@ static void pata_s3c_hwinit(struct s3c_ide_info *info, static int __init pata_s3c_probe(struct platform_device *pdev) { - struct s3c_ide_platdata *pdata = pdev->dev.platform_data; + struct s3c_ide_platdata *pdata = dev_get_platdata(&pdev->dev); struct device *dev = &pdev->dev; struct s3c_ide_info *info; struct resource *res; @@ -617,7 +617,7 @@ static int pata_s3c_resume(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct ata_host *host = platform_get_drvdata(pdev); - struct s3c_ide_platdata *pdata = pdev->dev.platform_data; + struct s3c_ide_platdata *pdata = dev_get_platdata(&pdev->dev); struct s3c_ide_info *info = host->private_data; pata_s3c_hwinit(info, pdata); diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 10ea99a..88e0851 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -4058,7 +4058,7 @@ static int mv_platform_probe(struct platform_device *pdev) of_property_read_u32(pdev->dev.of_node, "nr-ports", &n_ports); irq = irq_of_parse_and_map(pdev->dev.of_node, 0); } else { - mv_platform_data = pdev->dev.platform_data; + mv_platform_data = dev_get_platdata(&pdev->dev); n_ports = mv_platform_data->n_ports; irq = platform_get_irq(pdev, 0); } -- cgit v0.10.2 From e0067f0b71a2b5d1c5d8df556830db253aa1b264 Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Mon, 29 Jul 2013 23:46:03 -0300 Subject: sata_mv: Remove unneeded CONFIG_HAVE_CLK ifdefs If CONFIG_HAVE_CLK is not selected, then all the clk API turn out into no-ops. In other words, there's no need to have the ifdefs. The only side-effect of this patch is the extra tiny kmalloc, but that's not enough reason to have such ugly ifdefs all around the code. tj: Slightly massaged comment as per Andrew Lunn. Signed-off-by: Ezequiel Garcia Acked-by: Andrew Lunn Signed-off-by: Tejun Heo diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 88e0851..56be3181 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -553,10 +553,15 @@ struct mv_host_priv { u32 irq_mask_offset; u32 unmask_all_irqs; -#if defined(CONFIG_HAVE_CLK) + /* + * Needed on some devices that require their clocks to be enabled. + * These are optional: if the platform device does not have any + * clocks, they won't be used. Also, if the underlying hardware + * does not support the common clock framework (CONFIG_HAVE_CLK=n), + * all the clock operations become no-ops (see clk.h). + */ struct clk *clk; struct clk **port_clks; -#endif /* * These consistent DMA memory pools give us guaranteed * alignment for hardware-accessed data structures, @@ -4032,9 +4037,7 @@ static int mv_platform_probe(struct platform_device *pdev) struct resource *res; int n_ports = 0, irq = 0; int rc; -#if defined(CONFIG_HAVE_CLK) int port; -#endif ata_print_version_once(&pdev->dev, DRV_VERSION); @@ -4068,13 +4071,11 @@ static int mv_platform_probe(struct platform_device *pdev) if (!host || !hpriv) return -ENOMEM; -#if defined(CONFIG_HAVE_CLK) hpriv->port_clks = devm_kzalloc(&pdev->dev, sizeof(struct clk *) * n_ports, GFP_KERNEL); if (!hpriv->port_clks) return -ENOMEM; -#endif host->private_data = hpriv; hpriv->n_ports = n_ports; hpriv->board_idx = chip_soc; @@ -4084,7 +4085,6 @@ static int mv_platform_probe(struct platform_device *pdev) resource_size(res)); hpriv->base -= SATAHC0_REG_BASE; -#if defined(CONFIG_HAVE_CLK) hpriv->clk = clk_get(&pdev->dev, NULL); if (IS_ERR(hpriv->clk)) dev_notice(&pdev->dev, "cannot get optional clkdev\n"); @@ -4098,7 +4098,6 @@ static int mv_platform_probe(struct platform_device *pdev) if (!IS_ERR(hpriv->port_clks[port])) clk_prepare_enable(hpriv->port_clks[port]); } -#endif /* * (Re-)program MBUS remapping windows if we are asked to. @@ -4124,7 +4123,6 @@ static int mv_platform_probe(struct platform_device *pdev) return 0; err: -#if defined(CONFIG_HAVE_CLK) if (!IS_ERR(hpriv->clk)) { clk_disable_unprepare(hpriv->clk); clk_put(hpriv->clk); @@ -4135,7 +4133,6 @@ err: clk_put(hpriv->port_clks[port]); } } -#endif return rc; } @@ -4151,13 +4148,10 @@ err: static int mv_platform_remove(struct platform_device *pdev) { struct ata_host *host = platform_get_drvdata(pdev); -#if defined(CONFIG_HAVE_CLK) struct mv_host_priv *hpriv = host->private_data; int port; -#endif ata_host_detach(host); -#if defined(CONFIG_HAVE_CLK) if (!IS_ERR(hpriv->clk)) { clk_disable_unprepare(hpriv->clk); clk_put(hpriv->clk); @@ -4168,7 +4162,6 @@ static int mv_platform_remove(struct platform_device *pdev) clk_put(hpriv->port_clks[port]); } } -#endif return 0; } -- cgit v0.10.2 From b91bb0da07808f4a489a328d21dee2264001e179 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Fri, 9 Aug 2013 14:35:00 +0900 Subject: ata: pata_arasan: Staticize local symbols These local symbols are used only in this file. Fix the following sparse warnings: drivers/ata/pata_arasan_cf.c:657:6: warning: symbol 'arasan_cf_error_handler' was not declared. Should it be static? drivers/ata/pata_arasan_cf.c:686:14: warning: symbol 'arasan_cf_qc_issue' was not declared. Should it be static? Signed-off-by: Jingoo Han Acked-by: Viresh Kumar Signed-off-by: Tejun Heo diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c index 848ed32..853f610 100644 --- a/drivers/ata/pata_arasan_cf.c +++ b/drivers/ata/pata_arasan_cf.c @@ -654,7 +654,7 @@ static void arasan_cf_freeze(struct ata_port *ap) ata_sff_freeze(ap); } -void arasan_cf_error_handler(struct ata_port *ap) +static void arasan_cf_error_handler(struct ata_port *ap) { struct arasan_cf_dev *acdev = ap->host->private_data; @@ -683,7 +683,7 @@ static void arasan_cf_dma_start(struct arasan_cf_dev *acdev) ata_sff_queue_work(&acdev->work); } -unsigned int arasan_cf_qc_issue(struct ata_queued_cmd *qc) +static unsigned int arasan_cf_qc_issue(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; struct arasan_cf_dev *acdev = ap->host->private_data; -- cgit v0.10.2 From 3d70a363d965ddb34678e33d5ab8d19ac5969aed Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Fri, 9 Aug 2013 14:24:35 +0900 Subject: ata: pata_samsung_cf: add missing __iomem annotation Added missing __iomem annotation and staticized local symbol in order to fix the following sparse warnings: drivers/ata/pata_samsung_cf.c:244:14: warning: symbol 'pata_s3c_data_xfer' was not declared. Should it be static? drivers/ata/pata_samsung_cf.c:423:20: warning: incorrect type in argument 1 (different address spaces) drivers/ata/pata_samsung_cf.c:423:20: expected void const volatile [noderef] *addr drivers/ata/pata_samsung_cf.c:423:20: got void * drivers/ata/pata_samsung_cf.c:425:9: warning: incorrect type in argument 2 (different address spaces) drivers/ata/pata_samsung_cf.c:425:9: expected void volatile [noderef] *addr drivers/ata/pata_samsung_cf.c:425:9: got void * drivers/ata/pata_samsung_cf.c:448:37: warning: incorrect type in argument 1 (different address spaces) drivers/ata/pata_samsung_cf.c:448:37: expected void *s3c_ide_regbase drivers/ata/pata_samsung_cf.c:448:37: got void [noderef] *ide_addr drivers/ata/pata_samsung_cf.c:463:37: warning: incorrect type in argument 1 (different address spaces) drivers/ata/pata_samsung_cf.c:463:37: expected void *s3c_ide_regbase drivers/ata/pata_samsung_cf.c:463:37: got void [noderef] *ide_addr Signed-off-by: Jingoo Han Signed-off-by: Tejun Heo diff --git a/drivers/ata/pata_samsung_cf.c b/drivers/ata/pata_samsung_cf.c index 951aa95..898e544 100644 --- a/drivers/ata/pata_samsung_cf.c +++ b/drivers/ata/pata_samsung_cf.c @@ -241,8 +241,8 @@ static u8 pata_s3c_check_altstatus(struct ata_port *ap) /* * pata_s3c_data_xfer - Transfer data by PIO */ -unsigned int pata_s3c_data_xfer(struct ata_device *dev, unsigned char *buf, - unsigned int buflen, int rw) +static unsigned int pata_s3c_data_xfer(struct ata_device *dev, + unsigned char *buf, unsigned int buflen, int rw) { struct ata_port *ap = dev->link->ap; struct s3c_ide_info *info = ap->host->private_data; @@ -418,7 +418,7 @@ static struct ata_port_operations pata_s5p_port_ops = { .set_piomode = pata_s3c_set_piomode, }; -static void pata_s3c_enable(void *s3c_ide_regbase, bool state) +static void pata_s3c_enable(void __iomem *s3c_ide_regbase, bool state) { u32 temp = readl(s3c_ide_regbase + S3C_ATA_CTRL); temp = state ? (temp | 1) : (temp & ~1); -- cgit v0.10.2 From 404eafe137f858b21e2b57e3f980057ec8919fea Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Wed, 7 Aug 2013 10:52:35 -0500 Subject: sata highbank: enable 64-bit DMA mask when using LPAE Signed-off-by: Rob Herring Signed-off-by: Mark Langsdorf Signed-off-by: Tejun Heo diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c index d047d92..5eb93de 100644 --- a/drivers/ata/sata_highbank.c +++ b/drivers/ata/sata_highbank.c @@ -479,6 +479,9 @@ static int ahci_highbank_probe(struct platform_device *pdev) if (hpriv->cap & HOST_CAP_PMP) pi.flags |= ATA_FLAG_PMP; + if (hpriv->cap & HOST_CAP_64) + dma_set_coherent_mask(dev, DMA_BIT_MASK(64)); + /* CAP.NP sometimes indicate the index of the last enabled * port, at other times, that of the last possible port, so * determining the maximum port number requires looking at -- cgit v0.10.2 From 4a9b7f9f2704405c05b213f8f51e9f7f1fe02d1a Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Wed, 14 Aug 2013 11:11:31 +0200 Subject: drivers/ata/sata_rcar.c: simplify use of devm_ioremap_resource Remove unneeded error handling on the result of a call to platform_get_resource when the value is passed to devm_ioremap_resource. Move the call to platform_get_resource adjacent to the call to devm_ioremap_resource to make the connection between them more clear. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // @@ expression pdev,res,n,e,e1; expression ret != 0; identifier l; @@ - res = platform_get_resource(pdev, IORESOURCE_MEM, n); ... when != res - if (res == NULL) { ... \(goto l;\|return ret;\) } ... when != res + res = platform_get_resource(pdev, IORESOURCE_MEM, n); e = devm_ioremap_resource(e1, res); // Signed-off-by: Julia Lawall Signed-off-by: Tejun Heo diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c index 8108eb0..c2d95e9 100644 --- a/drivers/ata/sata_rcar.c +++ b/drivers/ata/sata_rcar.c @@ -778,10 +778,6 @@ static int sata_rcar_probe(struct platform_device *pdev) int irq; int ret = 0; - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (mem == NULL) - return -EINVAL; - irq = platform_get_irq(pdev, 0); if (irq <= 0) return -EINVAL; @@ -807,6 +803,7 @@ static int sata_rcar_probe(struct platform_device *pdev) host->private_data = priv; + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); priv->base = devm_ioremap_resource(&pdev->dev, mem); if (IS_ERR(priv->base)) { ret = PTR_ERR(priv->base); -- cgit v0.10.2 From 91c2095021acc6264288d58fc9f0b5b78984ac85 Mon Sep 17 00:00:00 2001 From: Mark Langsdorf Date: Wed, 14 Aug 2013 15:40:11 -0500 Subject: devicetree: create a separate binding description for sata_highbank The Calxeda sata_highbank driver has been adding its descriptions to the ahci driver. Separate them properly. This patch only affects documentation and has no functional component. Signed-off-by: Mark Langsdorf Acked-by: Rob Herring Signed-off-by: Tejun Heo diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt index 3ec0c5c..89de156 100644 --- a/Documentation/devicetree/bindings/ata/ahci-platform.txt +++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt @@ -4,27 +4,17 @@ SATA nodes are defined to describe on-chip Serial ATA controllers. Each SATA controller should have its own node. Required properties: -- compatible : compatible list, contains "calxeda,hb-ahci" or "snps,spear-ahci" +- compatible : compatible list, contains "snps,spear-ahci" - interrupts : - reg : Optional properties: -- calxeda,port-phys: phandle-combophy and lane assignment, which maps each - SATA port to a combophy and a lane within that - combophy -- calxeda,sgpio-gpio: phandle-gpio bank, bit offset, and default on or off, - which indicates that the driver supports SGPIO - indicator lights using the indicated GPIOs -- calxeda,led-order : a u32 array that map port numbers to offsets within the - SGPIO bitstream. - dma-coherent : Present if dma operations are coherent Example: sata@ffe08000 { - compatible = "calxeda,hb-ahci"; - reg = <0xffe08000 0x1000>; - interrupts = <115>; - calxeda,port-phys = <&combophy5 0 &combophy0 0 &combophy0 1 - &combophy0 2 &combophy0 3>; + compatible = "snps,spear-ahci"; + reg = <0xffe08000 0x1000>; + interrupts = <115>; }; diff --git a/Documentation/devicetree/bindings/ata/sata_highbank.txt b/Documentation/devicetree/bindings/ata/sata_highbank.txt new file mode 100644 index 0000000..e7a6f28 --- /dev/null +++ b/Documentation/devicetree/bindings/ata/sata_highbank.txt @@ -0,0 +1,34 @@ +* Calxeda AHCI SATA Controller + +SATA nodes are defined to describe on-chip Serial ATA controllers. +The Calxeda SATA controller mostly conforms to the AHCI interface +with some special extensions to add functionality. +Each SATA controller should have its own node. + +Required properties: +- compatible : compatible list, contains "calxeda,hb-ahci" +- interrupts : +- reg : + +Optional properties: +- dma-coherent : Present if dma operations are coherent +- calxeda,port-phys : phandle-combophy and lane assignment, which maps each + SATA port to a combophy and a lane within that + combophy +- calxeda,sgpio-gpio: phandle-gpio bank, bit offset, and default on or off, + which indicates that the driver supports SGPIO + indicator lights using the indicated GPIOs +- calxeda,led-order : a u32 array that map port numbers to offsets within the + SGPIO bitstream. + +Example: + sata@ffe08000 { + compatible = "calxeda,hb-ahci"; + reg = <0xffe08000 0x1000>; + interrupts = <115>; + dma-coherent; + calxeda,port-phys = <&combophy5 0 &combophy0 0 &combophy0 1 + &combophy0 2 &combophy0 3>; + calxeda,sgpio-gpio =<&gpioh 5 1 &gpioh 6 1 &gpioh 7 1>; + calxeda,led-order = <4 0 1 2 3>; + }; -- cgit v0.10.2 From b2e4c7b94e2826bea435aa3107e7c44f3e68515b Mon Sep 17 00:00:00 2001 From: Mark Langsdorf Date: Wed, 14 Aug 2013 13:23:31 -0500 Subject: sata, highbank: set tx_atten override bits Some board designs do not drive the SATA transmit lines within the specification. The ECME can provide override settings, on a per board basis, to bring the transmit lines within spec. Read those settings from the DTB and program them in. At the time of submission, no production hardware requires this patch. Signed-off-by: Mark Langsdorf Signed-off-by: Tejun Heo diff --git a/Documentation/devicetree/bindings/ata/sata_highbank.txt b/Documentation/devicetree/bindings/ata/sata_highbank.txt index e7a6f28..c84833e 100644 --- a/Documentation/devicetree/bindings/ata/sata_highbank.txt +++ b/Documentation/devicetree/bindings/ata/sata_highbank.txt @@ -20,6 +20,9 @@ Optional properties: indicator lights using the indicated GPIOs - calxeda,led-order : a u32 array that map port numbers to offsets within the SGPIO bitstream. +- calxeda,tx-atten : a u32 array that contains TX attenuation override + codes, one per port. The upper 3 bytes are always + 0 and thus ignored. Example: sata@ffe08000 { @@ -31,4 +34,5 @@ Example: &combophy0 2 &combophy0 3>; calxeda,sgpio-gpio =<&gpioh 5 1 &gpioh 6 1 &gpioh 7 1>; calxeda,led-order = <4 0 1 2 3>; + calxeda,tx-atten = <0xff 22 0xff 0xff 23>; }; diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c index 5eb93de..ba43c72 100644 --- a/drivers/ata/sata_highbank.c +++ b/drivers/ata/sata_highbank.c @@ -46,14 +46,19 @@ #define CR_BUSY 0x0001 #define CR_START 0x0001 #define CR_WR_RDN 0x0002 +#define CPHY_TX_INPUT_STS 0x2001 #define CPHY_RX_INPUT_STS 0x2002 -#define CPHY_SATA_OVERRIDE 0x4000 -#define CPHY_OVERRIDE 0x2005 +#define CPHY_SATA_TX_OVERRIDE 0x8000 +#define CPHY_SATA_RX_OVERRIDE 0x4000 +#define CPHY_TX_OVERRIDE 0x2004 +#define CPHY_RX_OVERRIDE 0x2005 #define SPHY_LANE 0x100 #define SPHY_HALF_RATE 0x0001 #define CPHY_SATA_DPLL_MODE 0x0700 #define CPHY_SATA_DPLL_SHIFT 8 #define CPHY_SATA_DPLL_RESET (1 << 11) +#define CPHY_SATA_TX_ATTEN 0x1c00 +#define CPHY_SATA_TX_ATTEN_SHIFT 10 #define CPHY_PHY_COUNT 6 #define CPHY_LANE_COUNT 4 #define CPHY_PORT_COUNT (CPHY_PHY_COUNT * CPHY_LANE_COUNT) @@ -66,6 +71,7 @@ struct phy_lane_info { void __iomem *phy_base; u8 lane_mapping; u8 phy_devs; + u8 tx_atten; }; static struct phy_lane_info port_data[CPHY_PORT_COUNT]; @@ -76,7 +82,6 @@ static DEFINE_SPINLOCK(sgpio_lock); #define SGPIO_PINS 3 #define SGPIO_PORTS 8 -/* can be cast as an ahci_host_priv for compatibility with most functions */ struct ecx_plat_data { u32 n_ports; unsigned sgpio_gpio[SGPIO_PINS]; @@ -259,8 +264,27 @@ static void highbank_cphy_disable_overrides(u8 sata_port) if (unlikely(port_data[sata_port].phy_base == NULL)) return; tmp = combo_phy_read(sata_port, CPHY_RX_INPUT_STS + lane * SPHY_LANE); - tmp &= ~CPHY_SATA_OVERRIDE; - combo_phy_write(sata_port, CPHY_OVERRIDE + lane * SPHY_LANE, tmp); + tmp &= ~CPHY_SATA_RX_OVERRIDE; + combo_phy_write(sata_port, CPHY_RX_OVERRIDE + lane * SPHY_LANE, tmp); +} + +static void cphy_override_tx_attenuation(u8 sata_port, u32 val) +{ + u8 lane = port_data[sata_port].lane_mapping; + u32 tmp; + + if (val & 0x8) + return; + + tmp = combo_phy_read(sata_port, CPHY_TX_INPUT_STS + lane * SPHY_LANE); + tmp &= ~CPHY_SATA_TX_OVERRIDE; + combo_phy_write(sata_port, CPHY_TX_OVERRIDE + lane * SPHY_LANE, tmp); + + tmp |= CPHY_SATA_TX_OVERRIDE; + combo_phy_write(sata_port, CPHY_TX_OVERRIDE + lane * SPHY_LANE, tmp); + + tmp |= (val << CPHY_SATA_TX_ATTEN_SHIFT) & CPHY_SATA_TX_ATTEN; + combo_phy_write(sata_port, CPHY_TX_OVERRIDE + lane * SPHY_LANE, tmp); } static void cphy_override_rx_mode(u8 sata_port, u32 val) @@ -268,21 +292,21 @@ static void cphy_override_rx_mode(u8 sata_port, u32 val) u8 lane = port_data[sata_port].lane_mapping; u32 tmp; tmp = combo_phy_read(sata_port, CPHY_RX_INPUT_STS + lane * SPHY_LANE); - tmp &= ~CPHY_SATA_OVERRIDE; - combo_phy_write(sata_port, CPHY_OVERRIDE + lane * SPHY_LANE, tmp); + tmp &= ~CPHY_SATA_RX_OVERRIDE; + combo_phy_write(sata_port, CPHY_RX_OVERRIDE + lane * SPHY_LANE, tmp); - tmp |= CPHY_SATA_OVERRIDE; - combo_phy_write(sata_port, CPHY_OVERRIDE + lane * SPHY_LANE, tmp); + tmp |= CPHY_SATA_RX_OVERRIDE; + combo_phy_write(sata_port, CPHY_RX_OVERRIDE + lane * SPHY_LANE, tmp); tmp &= ~CPHY_SATA_DPLL_MODE; tmp |= val << CPHY_SATA_DPLL_SHIFT; - combo_phy_write(sata_port, CPHY_OVERRIDE + lane * SPHY_LANE, tmp); + combo_phy_write(sata_port, CPHY_RX_OVERRIDE + lane * SPHY_LANE, tmp); tmp |= CPHY_SATA_DPLL_RESET; - combo_phy_write(sata_port, CPHY_OVERRIDE + lane * SPHY_LANE, tmp); + combo_phy_write(sata_port, CPHY_RX_OVERRIDE + lane * SPHY_LANE, tmp); tmp &= ~CPHY_SATA_DPLL_RESET; - combo_phy_write(sata_port, CPHY_OVERRIDE + lane * SPHY_LANE, tmp); + combo_phy_write(sata_port, CPHY_RX_OVERRIDE + lane * SPHY_LANE, tmp); msleep(15); } @@ -299,16 +323,20 @@ static void highbank_cphy_override_lane(u8 sata_port) lane * SPHY_LANE); } while ((tmp & SPHY_HALF_RATE) && (k++ < 1000)); cphy_override_rx_mode(sata_port, 3); + cphy_override_tx_attenuation(sata_port, port_data[sata_port].tx_atten); } static int highbank_initialize_phys(struct device *dev, void __iomem *addr) { struct device_node *sata_node = dev->of_node; - int phy_count = 0, phy, port = 0; + int phy_count = 0, phy, port = 0, i; void __iomem *cphy_base[CPHY_PHY_COUNT]; struct device_node *phy_nodes[CPHY_PHY_COUNT]; + u32 tx_atten[CPHY_PORT_COUNT]; + memset(port_data, 0, sizeof(struct phy_lane_info) * CPHY_PORT_COUNT); memset(phy_nodes, 0, sizeof(struct device_node*) * CPHY_PHY_COUNT); + memset(tx_atten, 0xff, CPHY_PORT_COUNT); do { u32 tmp; @@ -336,6 +364,10 @@ static int highbank_initialize_phys(struct device *dev, void __iomem *addr) of_node_put(phy_data.np); port += 1; } while (port < CPHY_PORT_COUNT); + of_property_read_u32_array(sata_node, "calxeda,tx-atten", + tx_atten, port); + for (i = 0; i < port; i++) + port_data[i].tx_atten = (u8) tx_atten[i]; return 0; } -- cgit v0.10.2 From 2b79c56fb41d3956f672990fe83e342a809c89ab Mon Sep 17 00:00:00 2001 From: Mark Langsdorf Date: Wed, 14 Aug 2013 13:23:32 -0500 Subject: sata, highbank: send extra clock cycles in SGPIO patterns Some SGPIO PICs don't follow the standard very well and expect a certain number of clock cycles or port frames in each SGPIO pattern. Add two optional parameters in the DTB that can provide the number of extra clock cycles to be sent before and after SGPIO pattern. Read those parameters from the DTB and send the extra clock cycles. Signed-off-by: Mark Langsdorf Acked-by: Rob Herring Signed-off-by: Tejun Heo diff --git a/Documentation/devicetree/bindings/ata/sata_highbank.txt b/Documentation/devicetree/bindings/ata/sata_highbank.txt index c84833e..aa83407 100644 --- a/Documentation/devicetree/bindings/ata/sata_highbank.txt +++ b/Documentation/devicetree/bindings/ata/sata_highbank.txt @@ -23,6 +23,10 @@ Optional properties: - calxeda,tx-atten : a u32 array that contains TX attenuation override codes, one per port. The upper 3 bytes are always 0 and thus ignored. +- calxeda,pre-clocks : a u32 that indicates the number of additional clock + cycles to transmit before sending an SGPIO pattern +- calxeda,post-clocks: a u32 that indicates the number of additional clock + cycles to transmit after sending an SGPIO pattern Example: sata@ffe08000 { @@ -35,4 +39,6 @@ Example: calxeda,sgpio-gpio =<&gpioh 5 1 &gpioh 6 1 &gpioh 7 1>; calxeda,led-order = <4 0 1 2 3>; calxeda,tx-atten = <0xff 22 0xff 0xff 23>; + calxeda,pre-clocks = <10>; + calxeda,post-clocks = <0>; }; diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c index ba43c72..0849672 100644 --- a/drivers/ata/sata_highbank.c +++ b/drivers/ata/sata_highbank.c @@ -84,6 +84,9 @@ static DEFINE_SPINLOCK(sgpio_lock); struct ecx_plat_data { u32 n_ports; + /* number of extra clocks that the SGPIO PIC controller expects */ + u32 pre_clocks; + u32 post_clocks; unsigned sgpio_gpio[SGPIO_PINS]; u32 sgpio_pattern; u32 port_to_sgpio[SGPIO_PORTS]; @@ -160,6 +163,9 @@ static ssize_t ecx_transmit_led_message(struct ata_port *ap, u32 state, spin_lock_irqsave(&sgpio_lock, flags); ecx_parse_sgpio(pdata, ap->port_no, state); sgpio_out = pdata->sgpio_pattern; + for (i = 0; i < pdata->pre_clocks; i++) + ecx_led_cycle_clock(pdata); + gpio_set_value(pdata->sgpio_gpio[SLOAD], 1); ecx_led_cycle_clock(pdata); gpio_set_value(pdata->sgpio_gpio[SLOAD], 0); @@ -172,6 +178,8 @@ static ssize_t ecx_transmit_led_message(struct ata_port *ap, u32 state, sgpio_out >>= 1; ecx_led_cycle_clock(pdata); } + for (i = 0; i < pdata->post_clocks; i++) + ecx_led_cycle_clock(pdata); /* save off new led state for port/slot */ emp->led_state = state; @@ -206,6 +214,11 @@ static void highbank_set_em_messages(struct device *dev, of_property_read_u32_array(np, "calxeda,led-order", pdata->port_to_sgpio, pdata->n_ports); + if (of_property_read_u32(np, "calxeda,pre-clocks", &pdata->pre_clocks)) + pdata->pre_clocks = 0; + if (of_property_read_u32(np, "calxeda,post-clocks", + &pdata->post_clocks)) + pdata->post_clocks = 0; /* store em_loc */ hpriv->em_loc = 0; -- cgit v0.10.2 From f1bc1e4c44b1b78fe34431936c60759b5aad5e3f Mon Sep 17 00:00:00 2001 From: Aaron Lu Date: Fri, 23 Aug 2013 10:17:54 +0800 Subject: ata: acpi: rework the ata acpi bind support Binding ACPI handle to SCSI device has several drawbacks, namely: 1 During ATA device initialization time, ACPI handle will be needed while SCSI devices are not created yet. So each time ACPI handle is needed, instead of retrieving the handle by ACPI_HANDLE macro, a namespace scan is performed to find the handle for the corresponding ATA device. This is inefficient, and also expose a restriction on calling path not holding any lock. 2 The binding to SCSI device tree makes code complex, while at the same time doesn't bring us any benefit. All ACPI handlings are still done in ATA module, not in SCSI. Rework the ATA ACPI binding code to bind ACPI handle to ATA transport devices(ATA port and ATA device). The binding needs to be done only once, since the ATA transport devices do not go away with hotplug. And due to this, the flush_work call in hotplug handler for ATA bay is no longer needed. Tested on an Intel test platform for binding and runtime power off for ODD(ZPODD) and hard disk; on an ASUS S400C for binding and normal boot and S3, where its SATA port node has _SDD and _GTF control methods when configured as an AHCI controller and its PATA device node has _GTF control method when configured as an IDE controller. SATA PMP binding and ATA hotplug is not tested. Signed-off-by: Aaron Lu Tested-by: Dirk Griesbach Signed-off-by: Tejun Heo diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index cf4e702..2377a32 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -34,14 +34,6 @@ struct ata_acpi_gtf { u8 tf[REGS_PER_GTF]; /* regs. 0x1f1 - 0x1f7 */ } __packed; -/* - * Helper - belongs in the PCI layer somewhere eventually - */ -static int is_pci_dev(struct device *dev) -{ - return (dev->bus == &pci_bus_type); -} - static void ata_acpi_clear_gtf(struct ata_device *dev) { kfree(dev->gtf_cache); @@ -49,47 +41,18 @@ static void ata_acpi_clear_gtf(struct ata_device *dev) } /** - * ata_ap_acpi_handle - provide the acpi_handle for an ata_port - * @ap: the acpi_handle returned will correspond to this port - * - * Returns the acpi_handle for the ACPI namespace object corresponding to - * the ata_port passed into the function, or NULL if no such object exists - */ -acpi_handle ata_ap_acpi_handle(struct ata_port *ap) -{ - if (ap->flags & ATA_FLAG_ACPI_SATA) - return NULL; - - return ap->scsi_host ? - DEVICE_ACPI_HANDLE(&ap->scsi_host->shost_gendev) : NULL; -} -EXPORT_SYMBOL(ata_ap_acpi_handle); - -/** * ata_dev_acpi_handle - provide the acpi_handle for an ata_device - * @dev: the acpi_device returned will correspond to this port + * @dev: the acpi_handle returned will correspond to this device * * Returns the acpi_handle for the ACPI namespace object corresponding to * the ata_device passed into the function, or NULL if no such object exists + * or ACPI is disabled for this device due to consecutive errors. */ acpi_handle ata_dev_acpi_handle(struct ata_device *dev) { - acpi_integer adr; - struct ata_port *ap = dev->link->ap; - - if (libata_noacpi || dev->flags & ATA_DFLAG_ACPI_DISABLED) - return NULL; - - if (ap->flags & ATA_FLAG_ACPI_SATA) { - if (!sata_pmp_attached(ap)) - adr = SATA_ADR(ap->port_no, NO_PORT_MULT); - else - adr = SATA_ADR(ap->port_no, dev->link->pmp); - return acpi_get_child(DEVICE_ACPI_HANDLE(ap->host->dev), adr); - } else - return acpi_get_child(ata_ap_acpi_handle(ap), dev->devno); + return dev->flags & ATA_DFLAG_ACPI_DISABLED ? + NULL : ACPI_HANDLE(&dev->tdev); } -EXPORT_SYMBOL(ata_dev_acpi_handle); /* @ap and @dev are the same as ata_acpi_handle_hotplug() */ static void ata_acpi_detach_device(struct ata_port *ap, struct ata_device *dev) @@ -156,10 +119,8 @@ static void ata_acpi_handle_hotplug(struct ata_port *ap, struct ata_device *dev, spin_unlock_irqrestore(ap->lock, flags); - if (wait) { + if (wait) ata_port_wait_eh(ap); - flush_work(&ap->hotplug_task.work); - } } static void ata_acpi_dev_notify_dock(acpi_handle handle, u32 event, void *data) @@ -216,37 +177,55 @@ static const struct acpi_dock_ops ata_acpi_ap_dock_ops = { .uevent = ata_acpi_ap_uevent, }; -void ata_acpi_hotplug_init(struct ata_host *host) +/* bind acpi handle to pata port */ +void ata_acpi_bind_port(struct ata_port *ap) { - int i; + acpi_handle host_handle = ACPI_HANDLE(ap->host->dev); - for (i = 0; i < host->n_ports; i++) { - struct ata_port *ap = host->ports[i]; - acpi_handle handle; - struct ata_device *dev; + if (libata_noacpi || ap->flags & ATA_FLAG_ACPI_SATA || !host_handle) + return; - if (!ap) - continue; + ACPI_HANDLE_SET(&ap->tdev, acpi_get_child(host_handle, ap->port_no)); - handle = ata_ap_acpi_handle(ap); - if (handle) { - /* we might be on a docking station */ - register_hotplug_dock_device(handle, - &ata_acpi_ap_dock_ops, ap, - NULL, NULL); - } + if (ata_acpi_gtm(ap, &ap->__acpi_init_gtm) == 0) + ap->pflags |= ATA_PFLAG_INIT_GTM_VALID; - ata_for_each_dev(dev, &ap->link, ALL) { - handle = ata_dev_acpi_handle(dev); - if (!handle) - continue; + /* we might be on a docking station */ + register_hotplug_dock_device(ACPI_HANDLE(&ap->tdev), + &ata_acpi_ap_dock_ops, ap, NULL, NULL); +} - /* we might be on a docking station */ - register_hotplug_dock_device(handle, - &ata_acpi_dev_dock_ops, - dev, NULL, NULL); - } +void ata_acpi_bind_dev(struct ata_device *dev) +{ + struct ata_port *ap = dev->link->ap; + acpi_handle port_handle = ACPI_HANDLE(&ap->tdev); + acpi_handle host_handle = ACPI_HANDLE(ap->host->dev); + acpi_handle parent_handle; + u64 adr; + + /* + * For both sata/pata devices, host handle is required. + * For pata device, port handle is also required. + */ + if (libata_noacpi || !host_handle || + (!(ap->flags & ATA_FLAG_ACPI_SATA) && !port_handle)) + return; + + if (ap->flags & ATA_FLAG_ACPI_SATA) { + if (!sata_pmp_attached(ap)) + adr = SATA_ADR(ap->port_no, NO_PORT_MULT); + else + adr = SATA_ADR(ap->port_no, dev->link->pmp); + parent_handle = host_handle; + } else { + adr = dev->devno; + parent_handle = port_handle; } + + ACPI_HANDLE_SET(&dev->tdev, acpi_get_child(parent_handle, adr)); + + register_hotplug_dock_device(ata_dev_acpi_handle(dev), + &ata_acpi_dev_dock_ops, dev, NULL, NULL); } /** @@ -270,18 +249,34 @@ void ata_acpi_dissociate(struct ata_host *host) struct ata_port *ap = host->ports[i]; const struct ata_acpi_gtm *gtm = ata_acpi_init_gtm(ap); - if (ata_ap_acpi_handle(ap) && gtm) + if (ACPI_HANDLE(&ap->tdev) && gtm) ata_acpi_stm(ap, gtm); } } -static int __ata_acpi_gtm(struct ata_port *ap, acpi_handle handle, - struct ata_acpi_gtm *gtm) +/** + * ata_acpi_gtm - execute _GTM + * @ap: target ATA port + * @gtm: out parameter for _GTM result + * + * Evaluate _GTM and store the result in @gtm. + * + * LOCKING: + * EH context. + * + * RETURNS: + * 0 on success, -ENOENT if _GTM doesn't exist, -errno on failure. + */ +int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *gtm) { struct acpi_buffer output = { .length = ACPI_ALLOCATE_BUFFER }; union acpi_object *out_obj; acpi_status status; int rc = 0; + acpi_handle handle = ACPI_HANDLE(&ap->tdev); + + if (!handle) + return -EINVAL; status = acpi_evaluate_object(handle, "_GTM", NULL, &output); @@ -317,27 +312,6 @@ static int __ata_acpi_gtm(struct ata_port *ap, acpi_handle handle, return rc; } -/** - * ata_acpi_gtm - execute _GTM - * @ap: target ATA port - * @gtm: out parameter for _GTM result - * - * Evaluate _GTM and store the result in @gtm. - * - * LOCKING: - * EH context. - * - * RETURNS: - * 0 on success, -ENOENT if _GTM doesn't exist, -errno on failure. - */ -int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *gtm) -{ - if (ata_ap_acpi_handle(ap)) - return __ata_acpi_gtm(ap, ata_ap_acpi_handle(ap), gtm); - else - return -EINVAL; -} - EXPORT_SYMBOL_GPL(ata_acpi_gtm); /** @@ -374,8 +348,8 @@ int ata_acpi_stm(struct ata_port *ap, const struct ata_acpi_gtm *stm) input.count = 3; input.pointer = in_params; - status = acpi_evaluate_object(ata_ap_acpi_handle(ap), "_STM", &input, - NULL); + status = acpi_evaluate_object(ACPI_HANDLE(&ap->tdev), "_STM", + &input, NULL); if (status == AE_NOT_FOUND) return -ENOENT; @@ -850,7 +824,7 @@ void ata_acpi_on_resume(struct ata_port *ap) const struct ata_acpi_gtm *gtm = ata_acpi_init_gtm(ap); struct ata_device *dev; - if (ata_ap_acpi_handle(ap) && gtm) { + if (ACPI_HANDLE(&ap->tdev) && gtm) { /* _GTM valid */ /* restore timing parameters */ @@ -894,8 +868,7 @@ static int ata_acpi_choose_suspend_state(struct ata_device *dev, bool runtime) d_max_in = ACPI_STATE_D3_HOT; out: - return acpi_pm_device_sleep_state(&dev->sdev->sdev_gendev, - NULL, d_max_in); + return acpi_pm_device_sleep_state(&dev->tdev, NULL, d_max_in); } static void sata_acpi_set_state(struct ata_port *ap, pm_message_t state) @@ -932,7 +905,7 @@ static void pata_acpi_set_state(struct ata_port *ap, pm_message_t state) struct ata_device *dev; acpi_handle port_handle; - port_handle = ata_ap_acpi_handle(ap); + port_handle = ACPI_HANDLE(&ap->tdev); if (!port_handle) return; @@ -1063,109 +1036,16 @@ void ata_acpi_on_disable(struct ata_device *dev) ata_acpi_clear_gtf(dev); } -static int compat_pci_ata(struct ata_port *ap) -{ - struct device *dev = ap->tdev.parent; - struct pci_dev *pdev; - - if (!is_pci_dev(dev)) - return 0; - - pdev = to_pci_dev(dev); - - if ((pdev->class >> 8) != PCI_CLASS_STORAGE_SATA && - (pdev->class >> 8) != PCI_CLASS_STORAGE_IDE) - return 0; - - return 1; -} - -static int ata_acpi_bind_host(struct ata_port *ap, acpi_handle *handle) -{ - if (libata_noacpi || ap->flags & ATA_FLAG_ACPI_SATA) - return -ENODEV; - - *handle = acpi_get_child(DEVICE_ACPI_HANDLE(ap->tdev.parent), - ap->port_no); - - if (!*handle) - return -ENODEV; - - if (__ata_acpi_gtm(ap, *handle, &ap->__acpi_init_gtm) == 0) - ap->pflags |= ATA_PFLAG_INIT_GTM_VALID; - - return 0; -} - -static int ata_acpi_bind_device(struct ata_port *ap, struct scsi_device *sdev, - acpi_handle *handle) -{ - struct ata_device *ata_dev; - - if (ap->flags & ATA_FLAG_ACPI_SATA) { - if (!sata_pmp_attached(ap)) - ata_dev = &ap->link.device[sdev->id]; - else - ata_dev = &ap->pmp_link[sdev->channel].device[sdev->id]; - } - else { - ata_dev = &ap->link.device[sdev->id]; - } - - *handle = ata_dev_acpi_handle(ata_dev); - - if (!*handle) - return -ENODEV; - - return 0; -} - -static int is_ata_port(const struct device *dev) -{ - return dev->type == &ata_port_type; -} - -static struct ata_port *dev_to_ata_port(struct device *dev) -{ - while (!is_ata_port(dev)) { - if (!dev->parent) - return NULL; - dev = dev->parent; - } - return to_ata_port(dev); -} - -static int ata_acpi_find_device(struct device *dev, acpi_handle *handle) -{ - struct ata_port *ap = dev_to_ata_port(dev); - - if (!ap) - return -ENODEV; - - if (!compat_pci_ata(ap)) - return -ENODEV; - - if (scsi_is_host_device(dev)) - return ata_acpi_bind_host(ap, handle); - else if (scsi_is_sdev_device(dev)) { - struct scsi_device *sdev = to_scsi_device(dev); - - return ata_acpi_bind_device(ap, sdev, handle); - } else - return -ENODEV; -} - -static struct acpi_bus_type ata_acpi_bus = { - .name = "ATA", - .find_device = ata_acpi_find_device, -}; - -int ata_acpi_register(void) +void ata_scsi_acpi_bind(struct ata_device *dev) { - return scsi_register_acpi_bus_type(&ata_acpi_bus); + acpi_handle handle = ata_dev_acpi_handle(dev); + if (handle) + acpi_dev_pm_add_dependent(handle, &dev->sdev->sdev_gendev); } -void ata_acpi_unregister(void) +void ata_scsi_acpi_unbind(struct ata_device *dev) { - scsi_unregister_acpi_bus_type(&ata_acpi_bus); + acpi_handle handle = ata_dev_acpi_handle(dev); + if (handle) + acpi_dev_pm_remove_dependent(handle, &dev->sdev->sdev_gendev); } diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index c24354d..39e78e4 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -6150,8 +6150,6 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht) if (rc) goto err_tadd; - ata_acpi_hotplug_init(host); - /* set cable, sata_spd_limit and report */ for (i = 0; i < host->n_ports; i++) { struct ata_port *ap = host->ports[i]; @@ -6632,8 +6630,6 @@ static int __init ata_init(void) ata_parse_force_param(); - ata_acpi_register(); - rc = ata_sff_init(); if (rc) { kfree(ata_force_tbl); @@ -6660,7 +6656,6 @@ static void __exit ata_exit(void) ata_release_transport(ata_scsi_transport_template); libata_transport_exit(); ata_sff_exit(); - ata_acpi_unregister(); kfree(ata_force_tbl); } diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 83c0890..f177ad6b 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -49,7 +49,6 @@ #include #include #include -#include #include #include "libata.h" @@ -3665,9 +3664,7 @@ void ata_scsi_scan_host(struct ata_port *ap, int sync) if (!IS_ERR(sdev)) { dev->sdev = sdev; scsi_device_put(sdev); - if (zpodd_dev_enabled(dev)) - dev_pm_qos_expose_flags( - &sdev->sdev_gendev, 0); + ata_scsi_acpi_bind(dev); } else { dev->sdev = NULL; } @@ -3755,6 +3752,8 @@ static void ata_scsi_remove_dev(struct ata_device *dev) struct scsi_device *sdev; unsigned long flags; + ata_scsi_acpi_unbind(dev); + /* Alas, we need to grab scan_mutex to ensure SCSI device * state doesn't change underneath us and thus * scsi_device_get() always succeeds. The mutex locking can @@ -3764,9 +3763,6 @@ static void ata_scsi_remove_dev(struct ata_device *dev) mutex_lock(&ap->scsi_host->scan_mutex); spin_lock_irqsave(ap->lock, flags); - if (zpodd_dev_enabled(dev)) - zpodd_exit(dev); - /* clearing dev->sdev is protected by host lock */ sdev = dev->sdev; dev->sdev = NULL; @@ -3816,6 +3812,9 @@ static void ata_scsi_handle_link_detach(struct ata_link *link) dev->flags &= ~ATA_DFLAG_DETACHED; spin_unlock_irqrestore(ap->lock, flags); + if (zpodd_dev_enabled(dev)) + zpodd_exit(dev); + ata_scsi_remove_dev(dev); } } diff --git a/drivers/ata/libata-transport.c b/drivers/ata/libata-transport.c index 077a856..150a917 100644 --- a/drivers/ata/libata-transport.c +++ b/drivers/ata/libata-transport.c @@ -287,6 +287,7 @@ int ata_tport_add(struct device *parent, dev->release = ata_tport_release; dev_set_name(dev, "ata%d", ap->print_id); transport_setup_device(dev); + ata_acpi_bind_port(ap); error = device_add(dev); if (error) { goto tport_err; @@ -644,6 +645,7 @@ static int ata_tdev_add(struct ata_device *ata_dev) dev_set_name(dev, "dev%d.%d.0", ap->print_id, link->pmp); transport_setup_device(dev); + ata_acpi_bind_dev(ata_dev); error = device_add(dev); if (error) { ata_tdev_free(ata_dev); diff --git a/drivers/ata/libata-zpodd.c b/drivers/ata/libata-zpodd.c index cd8daf4..68f9e32 100644 --- a/drivers/ata/libata-zpodd.c +++ b/drivers/ata/libata-zpodd.c @@ -2,6 +2,7 @@ #include #include #include +#include #include #include "libata.h" @@ -190,8 +191,8 @@ void zpodd_enable_run_wake(struct ata_device *dev) sdev_disable_disk_events(dev->sdev); zpodd->powered_off = true; - device_set_run_wake(&dev->sdev->sdev_gendev, true); - acpi_pm_device_run_wake(&dev->sdev->sdev_gendev, true); + device_set_run_wake(&dev->tdev, true); + acpi_pm_device_run_wake(&dev->tdev, true); } /* Disable runtime wake capability if it is enabled */ @@ -200,8 +201,8 @@ void zpodd_disable_run_wake(struct ata_device *dev) struct zpodd *zpodd = dev->zpodd; if (zpodd->powered_off) { - acpi_pm_device_run_wake(&dev->sdev->sdev_gendev, false); - device_set_run_wake(&dev->sdev->sdev_gendev, false); + acpi_pm_device_run_wake(&dev->tdev, false); + device_set_run_wake(&dev->tdev, false); } } @@ -262,7 +263,7 @@ static void ata_acpi_add_pm_notifier(struct ata_device *dev) static void ata_acpi_remove_pm_notifier(struct ata_device *dev) { - acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->sdev->sdev_gendev); + acpi_handle handle = ata_dev_acpi_handle(dev); acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY, zpodd_wake_dev); } @@ -290,6 +291,7 @@ void zpodd_init(struct ata_device *dev) ata_acpi_add_pm_notifier(dev); zpodd->dev = dev; dev->zpodd = zpodd; + dev_pm_qos_expose_flags(&dev->tdev, 0); } void zpodd_exit(struct ata_device *dev) diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index cc8a6e8..3e9cc95 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -118,9 +118,11 @@ extern void ata_acpi_on_resume(struct ata_port *ap); extern int ata_acpi_on_devcfg(struct ata_device *dev); extern void ata_acpi_on_disable(struct ata_device *dev); extern void ata_acpi_set_state(struct ata_port *ap, pm_message_t state); -extern int ata_acpi_register(void); -extern void ata_acpi_unregister(void); -extern void ata_acpi_hotplug_init(struct ata_host *host); +extern void ata_acpi_bind_port(struct ata_port *ap); +extern void ata_acpi_bind_dev(struct ata_device *dev); +extern acpi_handle ata_dev_acpi_handle(struct ata_device *dev); +extern void ata_scsi_acpi_bind(struct ata_device *dev); +extern void ata_scsi_acpi_unbind(struct ata_device *dev); #else static inline void ata_acpi_dissociate(struct ata_host *host) { } static inline int ata_acpi_on_suspend(struct ata_port *ap) { return 0; } @@ -129,9 +131,11 @@ static inline int ata_acpi_on_devcfg(struct ata_device *dev) { return 0; } static inline void ata_acpi_on_disable(struct ata_device *dev) { } static inline void ata_acpi_set_state(struct ata_port *ap, pm_message_t state) { } -static inline int ata_acpi_register(void) { return 0; } -static inline void ata_acpi_unregister(void) { } -static inline void ata_acpi_hotplug_init(struct ata_host *host) {} +static inline void ata_acpi_bind_port(struct ata_port *ap) {} +static inline void ata_acpi_bind_dev(struct ata_device *dev) {} +static inline acpi_handle ata_dev_acpi_handle(struct ata_device *dev) { return NULL; } +static inline void ata_scsi_acpi_bind(struct ata_device *dev) {} +static inline void ata_scsi_acpi_unbind(struct ata_device *dev) {} #endif /* libata-scsi.c */ diff --git a/drivers/ata/pata_acpi.c b/drivers/ata/pata_acpi.c index 09723b7..73212c9 100644 --- a/drivers/ata/pata_acpi.c +++ b/drivers/ata/pata_acpi.c @@ -39,7 +39,7 @@ static int pacpi_pre_reset(struct ata_link *link, unsigned long deadline) { struct ata_port *ap = link->ap; struct pata_acpi *acpi = ap->private_data; - if (ata_ap_acpi_handle(ap) == NULL || ata_acpi_gtm(ap, &acpi->gtm) < 0) + if (ACPI_HANDLE(&ap->tdev) == NULL || ata_acpi_gtm(ap, &acpi->gtm) < 0) return -ENODEV; return ata_sff_prereset(link, deadline); @@ -195,7 +195,7 @@ static int pacpi_port_start(struct ata_port *ap) struct pci_dev *pdev = to_pci_dev(ap->host->dev); struct pata_acpi *acpi; - if (ata_ap_acpi_handle(ap) == NULL) + if (ACPI_HANDLE(&ap->tdev) == NULL) return -ENODEV; acpi = ap->private_data = devm_kzalloc(&pdev->dev, sizeof(struct pata_acpi), GFP_KERNEL); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 124392f..f0ddc7d 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -68,28 +68,6 @@ static struct scsi_host_sg_pool scsi_sg_pools[] = { struct kmem_cache *scsi_sdb_cache; -#ifdef CONFIG_ACPI -#include - -static bool acpi_scsi_bus_match(struct device *dev) -{ - return dev->bus == &scsi_bus_type; -} - -int scsi_register_acpi_bus_type(struct acpi_bus_type *bus) -{ - bus->match = acpi_scsi_bus_match; - return register_acpi_bus_type(bus); -} -EXPORT_SYMBOL_GPL(scsi_register_acpi_bus_type); - -void scsi_unregister_acpi_bus_type(struct acpi_bus_type *bus) -{ - unregister_acpi_bus_type(bus); -} -EXPORT_SYMBOL_GPL(scsi_unregister_acpi_bus_type); -#endif - /* * When to reinvoke queueing after a resource shortage. It's 3 msecs to * not change behaviour from the previous unplug mechanism, experimentation diff --git a/include/linux/libata.h b/include/linux/libata.h index 283d66b..3198617 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1244,8 +1244,6 @@ int ata_acpi_stm(struct ata_port *ap, const struct ata_acpi_gtm *stm); int ata_acpi_gtm(struct ata_port *ap, struct ata_acpi_gtm *stm); unsigned long ata_acpi_gtm_xfermask(struct ata_device *dev, const struct ata_acpi_gtm *gtm); -acpi_handle ata_ap_acpi_handle(struct ata_port *ap); -acpi_handle ata_dev_acpi_handle(struct ata_device *dev); int ata_acpi_cbl_80wire(struct ata_port *ap, const struct ata_acpi_gtm *gtm); #else static inline const struct ata_acpi_gtm *ata_acpi_init_gtm(struct ata_port *ap) -- cgit v0.10.2 From 8be5ad9acb7c11b9d717bcdbe3d6de0dab081a39 Mon Sep 17 00:00:00 2001 From: Marc Carino Date: Sat, 24 Aug 2013 23:22:48 -0700 Subject: libata: Populate host-to-device FIS "auxiliary" field SATA 3.1 added an "auxiliary" field to the host-to-device FIS. Populate the host-to-device FIS with the new field via the taskfile struct. Signed-off-by: Marc Carino Signed-off-by: Tejun Heo diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 39e78e4..2b4e925 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -546,6 +546,8 @@ int atapi_cmd_type(u8 opcode) */ void ata_tf_to_fis(const struct ata_taskfile *tf, u8 pmp, int is_cmd, u8 *fis) { + const __le32 aux = cpu_to_le32(tf->auxiliary); + fis[0] = 0x27; /* Register - Host to Device FIS */ fis[1] = pmp & 0xf; /* Port multiplier number*/ if (is_cmd) @@ -569,10 +571,10 @@ void ata_tf_to_fis(const struct ata_taskfile *tf, u8 pmp, int is_cmd, u8 *fis) fis[14] = 0; fis[15] = tf->ctl; - fis[16] = 0; - fis[17] = 0; - fis[18] = 0; - fis[19] = 0; + fis[16] = aux & 0xff; + fis[17] = (aux >> 8) & 0xff; + fis[18] = (aux >> 16) & 0xff; + fis[19] = (aux >> 24) & 0xff; } /** diff --git a/include/linux/libata.h b/include/linux/libata.h index 3198617..9b6ba19 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -555,6 +555,10 @@ struct ata_taskfile { u8 device; u8 command; /* IO operation */ + + u32 auxiliary; /* auxiliary field */ + /* from SATA 3.1 and */ + /* ATA-8 ACS-3 */ }; #ifdef CONFIG_ATA_SFF -- cgit v0.10.2 From 40fb59e75ad197a1c4ca2fbccef85432d8d103f8 Mon Sep 17 00:00:00 2001 From: Marc Carino Date: Sat, 24 Aug 2013 23:22:49 -0700 Subject: libata: Add H2D FIS "auxiliary" port flag Add a new port flag, ATA_FLAG_FPDMA_AUX, used to indicate support for transmission of the H2D FIS 'auxiliary' field. Signed-off-by: Marc Carino Signed-off-by: Tejun Heo diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 5064f3e..8d41c57 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1288,6 +1288,14 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) */ if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA)) pi.flags |= ATA_FLAG_FPDMA_AA; + + /* + * All AHCI controllers should be forward-compatible + * with the new auxiliary field. This code should be + * conditionalized if any buggy AHCI controllers are + * encountered. + */ + pi.flags |= ATA_FLAG_FPDMA_AUX; } if (hpriv->cap & HOST_CAP_PMP) diff --git a/include/linux/libata.h b/include/linux/libata.h index 9b6ba19..578f98c 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -223,6 +223,7 @@ enum { ATA_FLAG_ACPI_SATA = (1 << 17), /* need native SATA ACPI layout */ ATA_FLAG_AN = (1 << 18), /* controller supports AN */ ATA_FLAG_PMP = (1 << 19), /* controller supports PMP */ + ATA_FLAG_FPDMA_AUX = (1 << 20), /* controller supports H2DFIS aux field */ ATA_FLAG_EM = (1 << 21), /* driver supports enclosure * management */ ATA_FLAG_SW_ACTIVITY = (1 << 22), /* driver supports sw activity -- cgit v0.10.2 From ed36911c747c18525691c0aa0fbe6b918c8eac19 Mon Sep 17 00:00:00 2001 From: Marc Carino Date: Sat, 24 Aug 2013 23:22:50 -0700 Subject: libata: Add support for SEND/RECEIVE FPDMA QUEUED Add support for the following ATA opcodes, which are present in SATA 3.1 and T13 ATA ACS-3: SEND FPDMA QUEUED RECEIVE FPDMA QUEUED Signed-off-by: Marc Carino Signed-off-by: Tejun Heo diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 2b4e925..a044be9 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -2141,6 +2141,22 @@ static int ata_dev_config_ncq(struct ata_device *dev, else snprintf(desc, desc_sz, "NCQ (depth %d/%d)%s", hdepth, ddepth, aa_desc); + + if ((ap->flags & ATA_FLAG_FPDMA_AUX) && + ata_id_has_ncq_send_and_recv(dev->id)) { + err_mask = ata_read_log_page(dev, ATA_LOG_NCQ_SEND_RECV, + 0, ap->sector_buf, 1); + if (err_mask) { + ata_dev_dbg(dev, + "failed to get NCQ Send/Recv Log Emask 0x%x\n", + err_mask); + } else { + dev->flags |= ATA_DFLAG_NCQ_SEND_RECV; + memcpy(dev->ncq_send_recv_cmds, ap->sector_buf, + ATA_LOG_NCQ_SEND_RECV_SIZE); + } + } + return 0; } diff --git a/include/linux/ata.h b/include/linux/ata.h index f63fb1a..bf4c69c 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -239,6 +239,8 @@ enum { ATA_CMD_WRITE_QUEUED_FUA_EXT = 0x3E, ATA_CMD_FPDMA_READ = 0x60, ATA_CMD_FPDMA_WRITE = 0x61, + ATA_CMD_FPDMA_SEND = 0x64, + ATA_CMD_FPDMA_RECV = 0x65, ATA_CMD_PIO_READ = 0x20, ATA_CMD_PIO_READ_EXT = 0x24, ATA_CMD_PIO_WRITE = 0x30, @@ -293,8 +295,13 @@ enum { /* marked obsolete in the ATA/ATAPI-7 spec */ ATA_CMD_RESTORE = 0x10, + /* Subcmds for ATA_CMD_FPDMA_SEND */ + ATA_SUBCMD_FPDMA_SEND_DSM = 0x00, + ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT = 0x02, + /* READ_LOG_EXT pages */ ATA_LOG_SATA_NCQ = 0x10, + ATA_LOG_NCQ_SEND_RECV = 0x13, ATA_LOG_SATA_ID_DEV_DATA = 0x30, ATA_LOG_SATA_SETTINGS = 0x08, ATA_LOG_DEVSLP_OFFSET = 0x30, @@ -305,6 +312,15 @@ enum { ATA_LOG_DEVSLP_VALID = 0x07, ATA_LOG_DEVSLP_VALID_MASK = 0x80, + /* NCQ send and receive log */ + ATA_LOG_NCQ_SEND_RECV_SUBCMDS_OFFSET = 0x00, + ATA_LOG_NCQ_SEND_RECV_SUBCMDS_DSM = (1 << 0), + ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET = 0x04, + ATA_LOG_NCQ_SEND_RECV_DSM_TRIM = (1 << 0), + ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET = 0x08, + ATA_LOG_NCQ_SEND_RECV_WR_LOG_OFFSET = 0x0C, + ATA_LOG_NCQ_SEND_RECV_SIZE = 0x10, + /* READ/WRITE LONG (obsolete) */ ATA_CMD_READ_LONG = 0x22, ATA_CMD_READ_LONG_ONCE = 0x23, @@ -772,6 +788,11 @@ static inline int ata_id_rotation_rate(const u16 *id) return val; } +static inline bool ata_id_has_ncq_send_and_recv(const u16 *id) +{ + return id[ATA_ID_SATA_CAPABILITY_2] & BIT(6); +} + static inline bool ata_id_has_trim(const u16 *id) { if (ata_id_major_version(id) >= 7 && diff --git a/include/linux/libata.h b/include/linux/libata.h index 578f98c..a988c2d 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -172,6 +172,7 @@ enum { ATA_DFLAG_DUBIOUS_XFER = (1 << 16), /* data transfer not verified */ ATA_DFLAG_NO_UNLOAD = (1 << 17), /* device doesn't support unload */ ATA_DFLAG_UNLOCK_HPA = (1 << 18), /* unlock HPA */ + ATA_DFLAG_NCQ_SEND_RECV = (1 << 19), /* device supports NCQ SEND and RECV */ ATA_DFLAG_INIT_MASK = (1 << 24) - 1, ATA_DFLAG_DETACH = (1 << 24), @@ -704,6 +705,9 @@ struct ata_device { /* DEVSLP Timing Variables from Identify Device Data Log */ u8 devslp_timing[ATA_LOG_DEVSLP_SIZE]; + /* NCQ send and receive log subcommand support */ + u8 ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_SIZE]; + /* error history */ int spdn_cnt; /* ering is CLEAR_END, read comment above CLEAR_END */ -- cgit v0.10.2 From 87fb6c31b9ef9ccab9a822b01fc3911f026a29bb Mon Sep 17 00:00:00 2001 From: Marc Carino Date: Sat, 24 Aug 2013 23:22:51 -0700 Subject: libata: Add support for queued DSM TRIM Some new SSDs support the queued version of the DSM TRIM command. Let the driver use the new command if supported. Signed-off-by: Marc Carino Signed-off-by: Tejun Heo diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index f177ad6b..5802610 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3097,12 +3097,25 @@ static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc) buf = page_address(sg_page(scsi_sglist(scmd))); size = ata_set_lba_range_entries(buf, 512, block, n_block); - tf->protocol = ATA_PROT_DMA; - tf->hob_feature = 0; - tf->feature = ATA_DSM_TRIM; - tf->hob_nsect = (size / 512) >> 8; - tf->nsect = size / 512; - tf->command = ATA_CMD_DSM; + if (ata_ncq_enabled(dev) && ata_fpdma_dsm_supported(dev)) { + /* Newer devices support queued TRIM commands */ + tf->protocol = ATA_PROT_NCQ; + tf->command = ATA_CMD_FPDMA_SEND; + tf->hob_nsect = ATA_SUBCMD_FPDMA_SEND_DSM & 0x1f; + tf->nsect = qc->tag << 3; + tf->hob_feature = (size / 512) >> 8; + tf->feature = size / 512; + + tf->auxiliary = 1; + } else { + tf->protocol = ATA_PROT_DMA; + tf->hob_feature = 0; + tf->feature = ATA_DSM_TRIM; + tf->hob_nsect = (size / 512) >> 8; + tf->nsect = size / 512; + tf->command = ATA_CMD_DSM; + } + tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE | ATA_TFLAG_LBA48 | ATA_TFLAG_WRITE; diff --git a/include/linux/libata.h b/include/linux/libata.h index a988c2d..0e23c26 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1606,6 +1606,13 @@ static inline int ata_ncq_enabled(struct ata_device *dev) ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ; } +static inline bool ata_fpdma_dsm_supported(struct ata_device *dev) +{ + return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) && + (dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET] & + ATA_LOG_NCQ_SEND_RECV_DSM_TRIM); +} + static inline void ata_qc_set_polling(struct ata_queued_cmd *qc) { qc->tf.ctl |= ATA_NIEN; -- cgit v0.10.2 From 03f7b802b876904971f23f00f562061309e95e08 Mon Sep 17 00:00:00 2001 From: Aaron Lu Date: Tue, 27 Aug 2013 14:07:12 -0400 Subject: libata: acpi: Remove ata_dev_acpi_handle stub in libata.h The ata_dev_acpi_handle is defined in libata-acpi.c and the only external user is libata-zpodd.c, which is built when CONFIG_ATA_ACPI is set, so there is no need to make an empty stub function for ONFIG_ATA_ACPI case in libata.h. It also causes compile errors due to acpi_handle is not defined when !CONFIG_ACPI. This patch fixes this problem by removing the empty stub. Reported-by: Stephen Rothwell Signed-off-by: Aaron Lu Signed-off-by: Tejun Heo diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 3e9cc95..eeeb778 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -133,7 +133,6 @@ static inline void ata_acpi_set_state(struct ata_port *ap, pm_message_t state) { } static inline void ata_acpi_bind_port(struct ata_port *ap) {} static inline void ata_acpi_bind_dev(struct ata_device *dev) {} -static inline acpi_handle ata_dev_acpi_handle(struct ata_device *dev) { return NULL; } static inline void ata_scsi_acpi_bind(struct ata_device *dev) {} static inline void ata_scsi_acpi_unbind(struct ata_device *dev) {} #endif -- cgit v0.10.2 From 86a565e61bcb9574bae3b622799682fef2d855bb Mon Sep 17 00:00:00 2001 From: Marc Carino Date: Sun, 1 Sep 2013 08:59:01 -0700 Subject: libata: bugfix: Remove __le32 in ata_tf_to_fis() The endianness attribute on the 'aux' local variable is wrong, and can lead to wrong endianness on big-endian machines, Signed-off-by: Marc Carino Signed-off-by: Tejun Heo diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index a044be9..83b1a9f 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -546,8 +546,6 @@ int atapi_cmd_type(u8 opcode) */ void ata_tf_to_fis(const struct ata_taskfile *tf, u8 pmp, int is_cmd, u8 *fis) { - const __le32 aux = cpu_to_le32(tf->auxiliary); - fis[0] = 0x27; /* Register - Host to Device FIS */ fis[1] = pmp & 0xf; /* Port multiplier number*/ if (is_cmd) @@ -571,10 +569,10 @@ void ata_tf_to_fis(const struct ata_taskfile *tf, u8 pmp, int is_cmd, u8 *fis) fis[14] = 0; fis[15] = tf->ctl; - fis[16] = aux & 0xff; - fis[17] = (aux >> 8) & 0xff; - fis[18] = (aux >> 16) & 0xff; - fis[19] = (aux >> 24) & 0xff; + fis[16] = tf->auxiliary & 0xff; + fis[17] = (tf->auxiliary >> 8) & 0xff; + fis[18] = (tf->auxiliary >> 16) & 0xff; + fis[19] = (tf->auxiliary >> 24) & 0xff; } /** -- cgit v0.10.2