diff options
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/ata/Makefile | 1 | ||||
| -rw-r--r-- | drivers/ata/ahci.c | 13 | ||||
| -rw-r--r-- | drivers/ata/ata_piix.c | 51 | ||||
| -rw-r--r-- | drivers/ata/libata-acpi.c | 6 | ||||
| -rw-r--r-- | drivers/ata/libata-core.c | 201 | ||||
| -rw-r--r-- | drivers/ata/libata-scsi.c | 17 | ||||
| -rw-r--r-- | drivers/ata/libata-sff.c | 216 | ||||
| -rw-r--r-- | drivers/ata/pata_acpi.c | 6 | ||||
| -rw-r--r-- | drivers/ata/pata_ali.c | 111 | ||||
| -rw-r--r-- | drivers/ata/pata_amd.c | 4 | ||||
| -rw-r--r-- | drivers/ata/pata_atiixp.c | 32 | ||||
| -rw-r--r-- | drivers/ata/pata_hpt366.c | 109 | ||||
| -rw-r--r-- | drivers/ata/pata_hpt3x3.c | 49 | ||||
| -rw-r--r-- | drivers/ata/pata_it821x.c | 17 | ||||
| -rw-r--r-- | drivers/ata/pata_mpiix.c | 3 | ||||
| -rw-r--r-- | drivers/ata/pata_octeon_cf.c | 965 | ||||
| -rw-r--r-- | drivers/ata/pata_platform.c | 2 | ||||
| -rw-r--r-- | drivers/ata/pata_sil680.c | 4 | ||||
| -rw-r--r-- | drivers/ata/sata_fsl.c | 2 | ||||
| -rw-r--r-- | drivers/ata/sata_sil24.c | 7 | ||||
| -rw-r--r-- | drivers/ata/sata_via.c | 2 |
22 files changed, 1479 insertions, 348 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 1a7be96d627b..503a908afc80 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -698,6 +698,15 @@ config PATA_IXP4XX_CF If unsure, say N. +config PATA_OCTEON_CF + tristate "OCTEON Boot Bus Compact Flash support" + depends on CPU_CAVIUM_OCTEON + help + This option enables a polled compact flash driver for use with + compact flash cards attached to the OCTEON boot bus. + + If unsure, say N. + config PATA_SCC tristate "Toshiba's Cell Reference Set IDE support" depends on PCI && PPC_CELLEB diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index 674965fa326d..7f1ecf99528c 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -69,6 +69,7 @@ obj-$(CONFIG_PATA_IXP4XX_CF) += pata_ixp4xx_cf.o obj-$(CONFIG_PATA_SCC) += pata_scc.o obj-$(CONFIG_PATA_SCH) += pata_sch.o obj-$(CONFIG_PATA_BF54X) += pata_bf54x.o +obj-$(CONFIG_PATA_OCTEON_CF) += pata_octeon_cf.o obj-$(CONFIG_PATA_PLATFORM) += pata_platform.o obj-$(CONFIG_PATA_OF_PLATFORM) += pata_of_platform.o obj-$(CONFIG_PATA_ICSIDE) += pata_icside.o diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 656448c7fef9..96039671e3b9 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -105,7 +105,7 @@ enum { board_ahci_ign_iferr = 2, board_ahci_sb600 = 3, board_ahci_mv = 4, - board_ahci_sb700 = 5, + board_ahci_sb700 = 5, /* for SB700 and SB800 */ board_ahci_mcp65 = 6, board_ahci_nopmp = 7, @@ -439,7 +439,7 @@ static const struct ata_port_info ahci_port_info[] = { .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, - /* board_ahci_sb700 */ + /* board_ahci_sb700, for SB700 and SB800 */ { AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL), .flags = AHCI_FLAG_COMMON, @@ -2446,6 +2446,8 @@ static void ahci_print_info(struct ata_host *host) speed_s = "1.5"; else if (speed == 2) speed_s = "3"; + else if (speed == 3) + speed_s = "6"; else speed_s = "?"; @@ -2610,6 +2612,10 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) (pdev->revision == 0xa1 || pdev->revision == 0xa2)) hpriv->flags |= AHCI_HFLAG_NO_MSI; + /* SB800 does NOT need the workaround to ignore SERR_INTERNAL */ + if (board_id == board_ahci_sb700 && pdev->revision >= 0x40) + hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL; + if ((hpriv->flags & AHCI_HFLAG_NO_MSI) || pci_enable_msi(pdev)) pci_intx(pdev, 1); @@ -2654,6 +2660,9 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) host->iomap = pcim_iomap_table(pdev); host->private_data = hpriv; + if (!(hpriv->cap & HOST_CAP_SSS)) + host->flags |= ATA_HOST_PARALLEL_SCAN; + if (pi.flags & ATA_FLAG_EM) ahci_reset_em(host); diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 5fdf1678d0cc..887d8f46a287 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -154,11 +154,13 @@ struct piix_map_db { struct piix_host_priv { const int *map; + u32 saved_iocfg; void __iomem *sidpr; }; static int piix_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); +static void piix_remove_one(struct pci_dev *pdev); static int piix_pata_prereset(struct ata_link *link, unsigned long deadline); static void piix_set_piomode(struct ata_port *ap, struct ata_device *adev); static void piix_set_dmamode(struct ata_port *ap, struct ata_device *adev); @@ -296,7 +298,7 @@ static struct pci_driver piix_pci_driver = { .name = DRV_NAME, .id_table = piix_pci_tbl, .probe = piix_init_one, - .remove = ata_pci_remove_one, + .remove = piix_remove_one, #ifdef CONFIG_PM .suspend = piix_pci_device_suspend, .resume = piix_pci_device_resume, @@ -308,7 +310,7 @@ static struct scsi_host_template piix_sht = { }; static struct ata_port_operations piix_pata_ops = { - .inherits = &ata_bmdma_port_ops, + .inherits = &ata_bmdma32_port_ops, .cable_detect = ata_cable_40wire, .set_piomode = piix_set_piomode, .set_dmamode = piix_set_dmamode, @@ -610,8 +612,9 @@ static const struct ich_laptop ich_laptop[] = { static int ich_pata_cable_detect(struct ata_port *ap) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); + struct piix_host_priv *hpriv = ap->host->private_data; const struct ich_laptop *lap = &ich_laptop[0]; - u8 tmp, mask; + u8 mask; /* Check for specials - Acer Aspire 5602WLMi */ while (lap->device) { @@ -625,8 +628,7 @@ static int ich_pata_cable_detect(struct ata_port *ap) /* check BIOS cable detect results */ mask = ap->port_no == 0 ? PIIX_80C_PRI : PIIX_80C_SEC; - pci_read_config_byte(pdev, PIIX_IOCFG, &tmp); - if ((tmp & mask) == 0) + if ((hpriv->saved_iocfg & mask) == 0) return ATA_CBL_PATA40; return ATA_CBL_PATA80; } @@ -1350,7 +1352,7 @@ static int __devinit piix_init_sidpr(struct ata_host *host) return 0; } -static void piix_iocfg_bit18_quirk(struct pci_dev *pdev) +static void piix_iocfg_bit18_quirk(struct ata_host *host) { static const struct dmi_system_id sysids[] = { { @@ -1367,7 +1369,8 @@ static void piix_iocfg_bit18_quirk(struct pci_dev *pdev) { } /* terminate list */ }; - u32 iocfg; + struct pci_dev *pdev = to_pci_dev(host->dev); + struct piix_host_priv *hpriv = host->private_data; if (!dmi_check_system(sysids)) return; @@ -1376,12 +1379,11 @@ static void piix_iocfg_bit18_quirk(struct pci_dev *pdev) * seem to use it to disable a channel. Clear the bit on the * affected systems. */ - pci_read_config_dword(pdev, PIIX_IOCFG, &iocfg); - if (iocfg & (1 << 18)) { + if (hpriv->saved_iocfg & (1 << 18)) { dev_printk(KERN_INFO, &pdev->dev, "applying IOCFG bit18 quirk\n"); - iocfg &= ~(1 << 18); - pci_write_config_dword(pdev, PIIX_IOCFG, iocfg); + pci_write_config_dword(pdev, PIIX_IOCFG, + hpriv->saved_iocfg & ~(1 << 18)); } } @@ -1430,6 +1432,17 @@ static int __devinit piix_init_one(struct pci_dev *pdev, if (rc) return rc; + hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL); + if (!hpriv) + return -ENOMEM; + + /* Save IOCFG, this will be used for cable detection, quirk + * detection and restoration on detach. This is necessary + * because some ACPI implementations mess up cable related + * bits on _STM. Reported on kernel bz#11879. + */ + pci_read_config_dword(pdev, PIIX_IOCFG, &hpriv->saved_iocfg); + /* ICH6R may be driven by either ata_piix or ahci driver * regardless of BIOS configuration. Make sure AHCI mode is * off. @@ -1441,10 +1454,6 @@ static int __devinit piix_init_one(struct pci_dev *pdev, } /* SATA map init can change port_info, do it before prepping host */ - hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL); - if (!hpriv) - return -ENOMEM; - if (port_flags & ATA_FLAG_SATA) hpriv->map = piix_init_sata_map(pdev, port_info, piix_map_db_table[ent->driver_data]); @@ -1463,7 +1472,7 @@ static int __devinit piix_init_one(struct pci_dev *pdev, } /* apply IOCFG bit18 quirk */ - piix_iocfg_bit18_quirk(pdev); + piix_iocfg_bit18_quirk(host); /* On ICH5, some BIOSen disable the interrupt using the * PCI_COMMAND_INTX_DISABLE bit added in PCI 2.3. @@ -1488,6 +1497,16 @@ static int __devinit piix_init_one(struct pci_dev *pdev, return ata_pci_sff_activate_host(host, ata_sff_interrupt, &piix_sht); } +static void piix_remove_one(struct pci_dev *pdev) +{ + struct ata_host *host = dev_get_drvdata(&pdev->dev); + struct piix_host_priv *hpriv = host->private_data; + + pci_write_config_dword(pdev, PIIX_IOCFG, hpriv->saved_iocfg); + + ata_pci_remove_one(pdev); +} + static int __init piix_init(void) { int rc; diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index ef02e488d468..6273d98d00eb 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -19,12 +19,6 @@ #include "libata.h" #include <acpi/acpi_bus.h> -#include <acpi/acnames.h> -#include <acpi/acnamesp.h> -#include <acpi/acparser.h> -#include <acpi/acexcep.h> -#include <acpi/acmacros.h> -#include <acpi/actypes.h> enum { ATA_ACPI_FILTER_SETXFER = 1 << 0, diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index fecca4223f8e..88c242856dae 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -56,6 +56,7 @@ #include <linux/workqueue.h> #include <linux/scatterlist.h> #include <linux/io.h> +#include <linux/async.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> #include <scsi/scsi_host.h> @@ -1006,6 +1007,7 @@ static const char *sata_spd_string(unsigned int spd) static const char * const spd_str[] = { "1.5 Gbps", "3.0 Gbps", + "6.0 Gbps", }; if (spd == 0 || (spd - 1) >= ARRAY_SIZE(spd_str)) @@ -1999,6 +2001,10 @@ unsigned int ata_pio_need_iordy(const struct ata_device *adev) as the caller should know this */ if (adev->link->ap->flags & ATA_FLAG_NO_IORDY) return 0; + /* CF spec. r4.1 Table 22 says no iordy on PIO5 and PIO6. */ + if (ata_id_is_cfa(adev->id) + && (adev->pio_mode == XFER_PIO_5 || adev->pio_mode == XFER_PIO_6)) + return 0; /* PIO3 and higher it is mandatory */ if (adev->pio_mode > XFER_PIO_2) return 1; @@ -3023,33 +3029,33 @@ int sata_set_spd(struct ata_link *link) */ static const struct ata_timing ata_timing[] = { -/* { XFER_PIO_SLOW, 120, 290, 240, 960, 290, 240, 960, 0 }, */ - { XFER_PIO_0, 70, 290, 240, 600, 165, 150, 600, 0 }, - { XFER_PIO_1, 50, 290, 93, 383, 125, 100, 383, 0 }, - { XFER_PIO_2, 30, 290, 40, 330, 100, 90, 240, 0 }, - { XFER_PIO_3, 30, 80, 70, 180, 80, 70, 180, 0 }, - { XFER_PIO_4, 25, 70, 25, 120, 70, 25, 120, 0 }, - { XFER_PIO_5, 15, 65, 25, 100, 65, 25, 100, 0 }, - { XFER_PIO_6, 10, 55, 20, 80, 55, 20, 80, 0 }, - - { XFER_SW_DMA_0, 120, 0, 0, 0, 480, 480, 960, 0 }, - { XFER_SW_DMA_1, 90, 0, 0, 0, 240, 240, 480, 0 }, - { XFER_SW_DMA_2, 60, 0, 0, 0, 120, 120, 240, 0 }, - - { XFER_MW_DMA_0, 60, 0, 0, 0, 215, 215, 480, 0 }, - { XFER_MW_DMA_1, 45, 0, 0, 0, 80, 50, 150, 0 }, - { XFER_MW_DMA_2, 25, 0, 0, 0, 70, 25, 120, 0 }, - { XFER_MW_DMA_3, 25, 0, 0, 0, 65, 25, 100, 0 }, - { XFER_MW_DMA_4, 25, 0, 0, 0, 55, 20, 80, 0 }, - -/* { XFER_UDMA_SLOW, 0, 0, 0, 0, 0, 0, 0, 150 }, */ - { XFER_UDMA_0, 0, 0, 0, 0, 0, 0, 0, 120 }, - { XFER_UDMA_1, 0, 0, 0, 0, 0, 0, 0, 80 }, - { XFER_UDMA_2, 0, 0, 0, 0, 0, 0, 0, 60 }, - { XFER_UDMA_3, 0, 0, 0, 0, 0, 0, 0, 45 }, - { XFER_UDMA_4, 0, 0, 0, 0, 0, 0, 0, 30 }, - { XFER_UDMA_5, 0, 0, 0, 0, 0, 0, 0, 20 }, - { XFER_UDMA_6, 0, 0, 0, 0, 0, 0, 0, 15 }, +/* { XFER_PIO_SLOW, 120, 290, 240, 960, 290, 240, 0, 960, 0 }, */ + { XFER_PIO_0, 70, 290, 240, 600, 165, 150, 0, 600, 0 }, + { XFER_PIO_1, 50, 290, 93, 383, 125, 100, 0, 383, 0 }, + { XFER_PIO_2, 30, 290, 40, 330, 100, 90, 0, 240, 0 }, + { XFER_PIO_3, 30, 80, 70, 180, 80, 70, 0, 180, 0 }, + { XFER_PIO_4, 25, 70, 25, 120, 70, 25, 0, 120, 0 }, + { XFER_PIO_5, 15, 65, 25, 100, 65, 25, 0, 100, 0 }, + { XFER_PIO_6, 10, 55, 20, 80, 55, 20, 0, 80, 0 }, + + { XFER_SW_DMA_0, 120, 0, 0, 0, 480, 480, 50, 960, 0 }, + { XFER_SW_DMA_1, 90, 0, 0, 0, 240, 240, 30, 480, 0 }, + { XFER_SW_DMA_2, 60, 0, 0, 0, 120, 120, 20, 240, 0 }, + + { XFER_MW_DMA_0, 60, 0, 0, 0, 215, 215, 20, 480, 0 }, + { XFER_MW_DMA_1, 45, 0, 0, 0, 80, 50, 5, 150, 0 }, + { XFER_MW_DMA_2, 25, 0, 0, 0, 70, 25, 5, 120, 0 }, + { XFER_MW_DMA_3, 25, 0, 0, 0, 65, 25, 5, 100, 0 }, + { XFER_MW_DMA_4, 25, 0, 0, 0, 55, 20, 5, 80, 0 }, + +/* { XFER_UDMA_SLOW, 0, 0, 0, 0, 0, 0, 0, 0, 150 }, */ + { XFER_UDMA_0, 0, 0, 0, 0, 0, 0, 0, 0, 120 }, + { XFER_UDMA_1, 0, 0, 0, 0, 0, 0, 0, 0, 80 }, + { XFER_UDMA_2, 0, 0, 0, 0, 0, 0, 0, 0, 60 }, + { XFER_UDMA_3, 0, 0, 0, 0, 0, 0, 0, 0, 45 }, + { XFER_UDMA_4, 0, 0, 0, 0, 0, 0, 0, 0, 30 }, + { XFER_UDMA_5, 0, 0, 0, 0, 0, 0, 0, 0, 20 }, + { XFER_UDMA_6, 0, 0, 0, 0, 0, 0, 0, 0, 15 }, { 0xFF } }; @@ -3059,14 +3065,15 @@ static const struct ata_timing ata_timing[] = { static void ata_timing_quantize(const struct ata_timing *t, struct ata_timing *q, int T, int UT) { - q->setup = EZ(t->setup * 1000, T); - q->act8b = EZ(t->act8b * 1000, T); - q->rec8b = EZ(t->rec8b * 1000, T); - q->cyc8b = EZ(t->cyc8b * 1000, T); - q->active = EZ(t->active * 1000, T); - q->recover = EZ(t->recover * 1000, T); - q->cycle = EZ(t->cycle * 1000, T); - q->udma = EZ(t->udma * 1000, UT); + q->setup = EZ(t->setup * 1000, T); + q->act8b = EZ(t->act8b * 1000, T); + q->rec8b = EZ(t->rec8b * 1000, T); + q->cyc8b = EZ(t->cyc8b * 1000, T); + q->active = EZ(t->active * 1000, T); + q->recover = EZ(t->recover * 1000, T); + q->dmack_hold = EZ(t->dmack_hold * 1000, T); + q->cycle = EZ(t->cycle * 1000, T); + q->udma = EZ(t->udma * 1000, UT); } void ata_timing_merge(const struct ata_timing *a, const struct ata_timing *b, @@ -3078,6 +3085,7 @@ void ata_timing_merge(const struct ata_timing *a, const struct ata_timing *b, if (what & ATA_TIMING_CYC8B ) m->cyc8b = max(a->cyc8b, b->cyc8b); if (what & ATA_TIMING_ACTIVE ) m->active = max(a->active, b->active); if (what & ATA_TIMING_RECOVER) m->recover = max(a->recover, b->recover); + if (what & ATA_TIMING_DMACK_HOLD) m->dmack_hold = max(a->dmack_hold, b->dmack_hold); if (what & ATA_TIMING_CYCLE ) m->cycle = max(a->cycle, b->cycle); if (what & ATA_TIMING_UDMA ) m->udma = max(a->udma, b->udma); } @@ -4550,7 +4558,7 @@ void ata_sg_clean(struct ata_queued_cmd *qc) struct scatterlist *sg = qc->sg; int dir = qc->dma_dir; - WARN_ON(sg == NULL); + WARN_ON_ONCE(sg == NULL); VPRINTK("unmapping %u sg elements\n", qc->n_elem); @@ -4770,7 +4778,7 @@ void ata_qc_free(struct ata_queued_cmd *qc) struct ata_port *ap = qc->ap; unsigned int tag; - WARN_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ + WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ qc->flags = 0; tag = qc->tag; @@ -4785,8 +4793,8 @@ void __ata_qc_complete(struct ata_queued_cmd *qc) struct ata_port *ap = qc->ap; struct ata_link *link = qc->dev->link; - WARN_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ - WARN_ON(!(qc->flags & ATA_QCFLAG_ACTIVE)); + WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ + WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE)); if (likely(qc->flags & ATA_QCFLAG_DMAMAP)) ata_sg_clean(qc); @@ -4872,7 +4880,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc) struct ata_device *dev = qc->dev; struct ata_eh_info *ehi = &dev->link->eh_info; - WARN_ON(ap->pflags & ATA_PFLAG_FROZEN); + WARN_ON_ONCE(ap->pflags & ATA_PFLAG_FROZEN); if (unlikely(qc->err_mask)) qc->flags |= ATA_QCFLAG_FAILED; @@ -4994,16 +5002,16 @@ void ata_qc_issue(struct ata_queued_cmd *qc) * check is skipped for old EH because it reuses active qc to * request ATAPI sense. */ - WARN_ON(ap->ops->error_handler && ata_tag_valid(link->active_tag)); + WARN_ON_ONCE(ap->ops->error_handler && ata_tag_valid(link->active_tag)); if (ata_is_ncq(prot)) { - WARN_ON(link->sactive & (1 << qc->tag)); + WARN_ON_ONCE(link->sactive & (1 << qc->tag)); if (!link->sactive) ap->nr_active_links++; link->sactive |= 1 << qc->tag; } else { - WARN_ON(link->sactive); + WARN_ON_ONCE(link->sactive); ap->nr_active_links++; link->active_tag = qc->tag; @@ -5909,6 +5917,65 @@ void ata_host_init(struct ata_host *host, struct device *dev, host->ops = ops; } + +static void async_port_probe(void *data, async_cookie_t cookie) +{ + int rc; + struct ata_port *ap = data; + + /* + * If we're not allowed to scan this host in parallel, + * we need to wait until all previous scans have completed + * before going further. + * Jeff Garzik says this is only within a controller, so we + * don't need to wait for port 0, only for later ports. + */ + if (!(ap->host->flags & ATA_HOST_PARALLEL_SCAN) && ap->port_no != 0) + async_synchronize_cookie(cookie); + + /* probe */ + if (ap->ops->error_handler) { + struct ata_eh_info *ehi = &ap->link.eh_info; + unsigned long flags; + + ata_port_probe(ap); + + /* kick EH for boot probing */ + spin_lock_irqsave(ap->lock, flags); + + ehi->probe_mask |= ATA_ALL_DEVICES; + ehi->action |= ATA_EH_RESET | ATA_EH_LPM; + ehi->flags |= ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET; + + ap->pflags &= ~ATA_PFLAG_INITIALIZING; + ap->pflags |= ATA_PFLAG_LOADING; + ata_port_schedule_eh(ap); + + spin_unlock_irqrestore(ap->lock, flags); + + /* wait for EH to finish */ + ata_port_wait_eh(ap); + } else { + DPRINTK("ata%u: bus probe begin\n", ap->print_id); + rc = ata_bus_probe(ap); + DPRINTK("ata%u: bus probe end\n", ap->print_id); + + if (rc) { + /* FIXME: do something useful here? + * Current libata behavior will + * tear down everything when + * the module is removed + * or the h/w is unplugged. + */ + } + } + + /* in order to keep device order, we need to synchronize at this point */ + async_synchronize_cookie(cookie); + + ata_scsi_scan_host(ap, 1); + +} /** * ata_host_register - register initialized ATA host * @host: ATA host to register @@ -5988,52 +6055,9 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht) DPRINTK("probe begin\n"); for (i = 0; i < host->n_ports; i++) { struct ata_port *ap = host->ports[i]; - - /* probe */ - if (ap->ops->error_handler) { - struct ata_eh_info *ehi = &ap->link.eh_info; - unsigned long flags; - - ata_port_probe(ap); - - /* kick EH for boot probing */ - spin_lock_irqsave(ap->lock, flags); - - ehi->probe_mask |= ATA_ALL_DEVICES; - ehi->action |= ATA_EH_RESET | ATA_EH_LPM; - ehi->flags |= ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET; - - ap->pflags &= ~ATA_PFLAG_INITIALIZING; - ap->pflags |= ATA_PFLAG_LOADING; - ata_port_schedule_eh(ap); - - spin_unlock_irqrestore(ap->lock, flags); - - /* wait for EH to finish */ - ata_port_wait_eh(ap); - } else { - DPRINTK("ata%u: bus probe begin\n", ap->print_id); - rc = ata_bus_probe(ap); - DPRINTK("ata%u: bus probe end\n", ap->print_id); - - if (rc) { - /* FIXME: do something useful here? - * Current libata behavior will - * tear down everything when - * the module is removed - * or the h/w is unplugged. - */ - } - } - } - - /* probes are done, now scan each port's disk(s) */ - DPRINTK("host probe begin\n"); - for (i = 0; i < host->n_ports; i++) { - struct ata_port *ap = host->ports[i]; - - ata_scsi_scan_host(ap, 1); + async_schedule(async_port_probe, ap); } + DPRINTK("probe end\n"); return 0; } @@ -6616,7 +6640,6 @@ EXPORT_SYMBOL_GPL(ata_dev_pair); EXPORT_SYMBOL_GPL(ata_port_disable); EXPORT_SYMBOL_GPL(ata_ratelimit); EXPORT_SYMBOL_GPL(ata_wait_register); -EXPORT_SYMBOL_GPL(ata_scsi_ioctl); EXPORT_SYMBOL_GPL(ata_scsi_queuecmd); EXPORT_SYMBOL_GPL(ata_scsi_slave_config); EXPORT_SYMBOL_GPL(ata_scsi_slave_destroy); diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 9e92107691f2..a1a6e6298c33 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -423,9 +423,9 @@ int ata_std_bios_param(struct scsi_device *sdev, struct block_device *bdev, * RETURNS: * Zero on success, negative errno on error. */ -static int ata_get_identity(struct scsi_device *sdev, void __user *arg) +static int ata_get_identity(struct ata_port *ap, struct scsi_device *sdev, + void __user *arg) { - struct ata_port *ap = ata_shost_to_port(sdev->host); struct ata_device *dev = ata_scsi_find_dev(ap, sdev); u16 __user *dst = arg; char buf[40]; @@ -645,7 +645,8 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg) return rc; } -int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg) +int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *scsidev, + int cmd, void __user *arg) { int val = -EINVAL, rc = -EINVAL; @@ -663,7 +664,7 @@ int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg) return 0; case HDIO_GET_IDENTITY: - return ata_get_identity(scsidev, arg); + return ata_get_identity(ap, scsidev, arg); case HDIO_DRIVE_CMD: if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) @@ -682,6 +683,14 @@ int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg) return rc; } +EXPORT_SYMBOL_GPL(ata_sas_scsi_ioctl); + +int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg) +{ + return ata_sas_scsi_ioctl(ata_shost_to_port(scsidev->host), + scsidev, cmd, arg); +} +EXPORT_SYMBOL_GPL(ata_scsi_ioctl); /** * ata_scsi_qc_new - acquire new ata_queued_cmd reference diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 9033d164c4ec..5a4aad123c42 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -66,6 +66,7 @@ const struct ata_port_operations ata_sff_port_ops = { .port_start = ata_sff_port_start, }; +EXPORT_SYMBOL_GPL(ata_sff_port_ops); const struct ata_port_operations ata_bmdma_port_ops = { .inherits = &ata_sff_port_ops, @@ -77,6 +78,14 @@ const struct ata_port_operations ata_bmdma_port_ops = { .bmdma_stop = ata_bmdma_stop, .bmdma_status = ata_bmdma_status, }; +EXPORT_SYMBOL_GPL(ata_bmdma_port_ops); + +const struct ata_port_operations ata_bmdma32_port_ops = { + .inherits = &ata_bmdma_port_ops, + + .sff_data_xfer = ata_sff_data_xfer32, +}; +EXPORT_SYMBOL_GPL(ata_bmdma32_port_ops); /** * ata_fill_sg - Fill PCI IDE PRD table @@ -166,8 +175,9 @@ static void ata_fill_sg_dumb(struct ata_queued_cmd *qc) blen = len & 0xffff; ap->prd[pi].addr = cpu_to_le32(addr); if (blen == 0) { - /* Some PATA chipsets like the CS5530 can't - cope with 0x0000 meaning 64K as the spec says */ + /* Some PATA chipsets like the CS5530 can't + cope with 0x0000 meaning 64K as the spec + says */ ap->prd[pi].flags_len = cpu_to_le32(0x8000); blen = 0x8000; ap->prd[++pi].addr = cpu_to_le32(addr + 0x8000); @@ -200,6 +210,7 @@ void ata_sff_qc_prep(struct ata_queued_cmd *qc) ata_fill_sg(qc); } +EXPORT_SYMBOL_GPL(ata_sff_qc_prep); /** * ata_sff_dumb_qc_prep - Prepare taskfile for submission @@ -217,6 +228,7 @@ void ata_sff_dumb_qc_prep(struct ata_queued_cmd *qc) ata_fill_sg_dumb(qc); } +EXPORT_SYMBOL_GPL(ata_sff_dumb_qc_prep); /** * ata_sff_check_status - Read device status reg & clear interrupt @@ -233,6 +245,7 @@ u8 ata_sff_check_status(struct ata_port *ap) { return ioread8(ap->ioaddr.status_addr); } +EXPORT_SYMBOL_GPL(ata_sff_check_status); /** * ata_sff_altstatus - Read device alternate status reg @@ -275,7 +288,7 @@ static u8 ata_sff_irq_status(struct ata_port *ap) status = ata_sff_altstatus(ap); /* Not us: We are busy */ if (status & ATA_BUSY) - return status; + return status; } /* Clear INTRQ latch */ status = ap->ops->sff_check_status(ap); @@ -319,6 +332,7 @@ void ata_sff_pause(struct ata_port *ap) ata_sff_sync(ap); ndelay(400); } +EXPORT_SYMBOL_GPL(ata_sff_pause); /** * ata_sff_dma_pause - Pause before commencing DMA @@ -327,7 +341,7 @@ void ata_sff_pause(struct ata_port *ap) * Perform I/O fencing and ensure sufficient cycle delays occur * for the HDMA1:0 transition */ - + void ata_sff_dma_pause(struct ata_port *ap) { if (ap->ops->sff_check_altstatus || ap->ioaddr.altstatus_addr) { @@ -341,6 +355,7 @@ void ata_sff_dma_pause(struct ata_port *ap) corruption. */ BUG(); } +EXPORT_SYMBOL_GPL(ata_sff_dma_pause); /** * ata_sff_busy_sleep - sleep until BSY clears, or timeout @@ -396,6 +411,7 @@ int ata_sff_busy_sleep(struct ata_port *ap, return 0; } +EXPORT_SYMBOL_GPL(ata_sff_busy_sleep); static int ata_sff_check_ready(struct ata_link *link) { @@ -422,6 +438,7 @@ int ata_sff_wait_ready(struct ata_link *link, unsigned long deadline) { return ata_wait_ready(link, deadline, ata_sff_check_ready); } +EXPORT_SYMBOL_GPL(ata_sff_wait_ready); /** * ata_sff_dev_select - Select device 0/1 on ATA bus @@ -449,6 +466,7 @@ void ata_sff_dev_select(struct ata_port *ap, unsigned int device) iowrite8(tmp, ap->ioaddr.device_addr); ata_sff_pause(ap); /* needed; also flushes, for mmio */ } +EXPORT_SYMBOL_GPL(ata_sff_dev_select); /** * ata_dev_select - Select device 0/1 on ATA bus @@ -513,6 +531,7 @@ u8 ata_sff_irq_on(struct ata_port *ap) return tmp; } +EXPORT_SYMBOL_GPL(ata_sff_irq_on); /** * ata_sff_irq_clear - Clear PCI IDE BMDMA interrupt. @@ -534,6 +553,7 @@ void ata_sff_irq_clear(struct ata_port *ap) iowrite8(ioread8(mmio + ATA_DMA_STATUS), mmio + ATA_DMA_STATUS); } +EXPORT_SYMBOL_GPL(ata_sff_irq_clear); /** * ata_sff_tf_load - send taskfile registers to host controller @@ -558,7 +578,7 @@ void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) } if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) { - WARN_ON(!ioaddr->ctl_addr); + WARN_ON_ONCE(!ioaddr->ctl_addr); iowrite8(tf->hob_feature, ioaddr->feature_addr); iowrite8(tf->hob_nsect, ioaddr->nsect_addr); iowrite8(tf->hob_lbal, ioaddr->lbal_addr); @@ -593,6 +613,7 @@ void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) ata_wait_idle(ap); } +EXPORT_SYMBOL_GPL(ata_sff_tf_load); /** * ata_sff_tf_read - input device's ATA taskfile shadow registers @@ -630,9 +651,10 @@ void ata_sff_tf_read(struct ata_port *ap, struct ata_taskfile *tf) iowrite8(tf->ctl, ioaddr->ctl_addr); ap->last_ctl = tf->ctl; } else - WARN_ON(1); + WARN_ON_ONCE(1); } } +EXPORT_SYMBOL_GPL(ata_sff_tf_read); /** * ata_sff_exec_command - issue ATA command to host controller @@ -652,6 +674,7 @@ void ata_sff_exec_command(struct ata_port *ap, const struct ata_taskfile *tf) iowrite8(tf->command, ap->ioaddr.command_addr); ata_sff_pause(ap); } +EXPORT_SYMBOL_GPL(ata_sff_exec_command); /** * ata_tf_to_host - issue ATA taskfile to host controller @@ -717,6 +740,53 @@ unsigned int ata_sff_data_xfer(struct ata_device *dev, unsigned char *buf, return words << 1; } +EXPORT_SYMBOL_GPL(ata_sff_data_xfer); + +/** + * ata_sff_data_xfer32 - Transfer data by PIO + * @dev: device to target + * @buf: data buffer + * @buflen: buffer length + * @rw: read/write + * + * Transfer data from/to the device data register by PIO using 32bit + * I/O operations. + * + * LOCKING: + * Inherited from caller. + * + * RETURNS: + * Bytes consumed. + */ + +unsigned int ata_sff_data_xfer32(struct ata_device *dev, unsigned char *buf, + unsigned int buflen, int rw) +{ + struct ata_port *ap = dev->link->ap; + void __iomem *data_addr = ap->ioaddr.data_addr; + unsigned int words = buflen >> 2; + int slop = buflen & 3; + + /* Transfer multiple of 4 bytes */ + if (rw == READ) + ioread32_rep(data_addr, buf, words); + else + iowrite32_rep(data_addr, buf, words); + + if (unlikely(slop)) { + __le32 pad; + if (rw == READ) { + pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr)); + memcpy(buf + buflen - slop, &pad, slop); + } else { + memcpy(&pad, buf + buflen - slop, slop); + iowrite32(le32_to_cpu(pad), ap->ioaddr.data_addr); + } + words++; + } + return words << 2; +} +EXPORT_SYMBOL_GPL(ata_sff_data_xfer32); /** * ata_sff_data_xfer_noirq - Transfer data by PIO @@ -746,6 +816,7 @@ unsigned int ata_sff_data_xfer_noirq(struct ata_device *dev, unsigned char *buf, return consumed; } +EXPORT_SYMBOL_GPL(ata_sff_data_xfer_noirq); /** * ata_pio_sector - Transfer a sector of data. @@ -820,7 +891,7 @@ static void ata_pio_sectors(struct ata_queued_cmd *qc) /* READ/WRITE MULTIPLE */ unsigned int nsect; - WARN_ON(qc->dev->multi_count == 0); + WARN_ON_ONCE(qc->dev->multi_count == 0); nsect = min((qc->nbytes - qc->curbytes) / qc->sect_size, qc->dev->multi_count); @@ -847,7 +918,7 @@ static void atapi_send_cdb(struct ata_port *ap, struct ata_queued_cmd *qc) { /* send SCSI cdb */ DPRINTK("send cdb\n"); - WARN_ON(qc->dev->cdb_len < 12); + WARN_ON_ONCE(qc->dev->cdb_len < 12); ap->ops->sff_data_xfer(qc->dev, qc->cdb, qc->dev->cdb_len, 1); ata_sff_sync(ap); @@ -922,13 +993,15 @@ next_sg: buf = kmap_atomic(page, KM_IRQ0); /* do the actual data transfer */ - consumed = ap->ops->sff_data_xfer(dev, buf + offset, count, rw); + consumed = ap->ops->sff_data_xfer(dev, buf + offset, + count, rw); kunmap_atomic(buf, KM_IRQ0); local_irq_restore(flags); } else { buf = page_address(page); - consumed = ap->ops->sff_data_xfer(dev, buf + offset, count, rw); + consumed = ap->ops->sff_data_xfer(dev, buf + offset, + count, rw); } bytes -= min(bytes, consumed); @@ -940,9 +1013,12 @@ next_sg: qc->cursg_ofs = 0; } - /* consumed can be larger than count only for the last transfer */ - WARN_ON(qc->cursg && count != consumed); - + /* + * There used to be a WARN_ON_ONCE(qc->cursg && count != consumed); + * Unfortunately __atapi_pio_bytes doesn't know enough to do the WARN + * check correctly as it doesn't know if it is the last request being + * made. Somebody should implement a proper sanity check. + */ if (bytes) goto next_sg; return 0; @@ -1013,18 +1089,19 @@ static void atapi_pio_bytes(struct ata_queued_cmd *qc) * RETURNS: * 1 if ok in workqueue, 0 otherwise. */ -static inline int ata_hsm_ok_in_wq(struct ata_port *ap, struct ata_queued_cmd *qc) +static inline int ata_hsm_ok_in_wq(struct ata_port *ap, + struct ata_queued_cmd *qc) { if (qc->tf.flags & ATA_TFLAG_POLLING) return 1; if (ap->hsm_task_state == HSM_ST_FIRST) { if (qc->tf.protocol == ATA_PROT_PIO && - (qc->tf.flags & ATA_TFLAG_WRITE)) + (qc->tf.flags & ATA_TFLAG_WRITE)) return 1; if (ata_is_atapi(qc->tf.protocol) && - !(qc->dev->flags & ATA_DFLAG_CDB_INTR)) + !(qc->dev->flags & ATA_DFLAG_CDB_INTR)) return 1; } @@ -1098,13 +1175,13 @@ int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, unsigned long flags = 0; int poll_next; - WARN_ON((qc->flags & ATA_QCFLAG_ACTIVE) == 0); + WARN_ON_ONCE((qc->flags & ATA_QCFLAG_ACTIVE) == 0); /* Make sure ata_sff_qc_issue() does not throw things * like DMA polling into the workqueue. Notice that * in_wq is not equivalent to (qc->tf.flags & ATA_TFLAG_POLLING). */ - WARN_ON(in_wq != ata_hsm_ok_in_wq(ap, qc)); + WARN_ON_ONCE(in_wq != ata_hsm_ok_in_wq(ap, qc)); fsm_start: DPRINTK("ata%u: protocol %d task_state %d (dev_stat 0x%X)\n", @@ -1313,7 +1390,7 @@ fsm_start: DPRINTK("ata%u: dev %u command complete, drv_stat 0x%x\n", ap->print_id, qc->dev->devno, status); - WARN_ON(qc->err_mask & (AC_ERR_DEV | AC_ERR_HSM)); + WARN_ON_ONCE(qc->err_mask & (AC_ERR_DEV | AC_ERR_HSM)); ap->hsm_task_state = HSM_ST_IDLE; @@ -1338,6 +1415,7 @@ fsm_start: return poll_next; } +EXPORT_SYMBOL_GPL(ata_sff_hsm_move); void ata_pio_task(struct work_struct *work) { @@ -1348,7 +1426,7 @@ void ata_pio_task(struct work_struct *work) int poll_next; fsm_start: - WARN_ON(ap->hsm_task_state == HSM_ST_IDLE); + WARN_ON_ONCE(ap->hsm_task_state == HSM_ST_IDLE); /* * This is purely heuristic. This is a fast path. @@ -1437,7 +1515,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc) break; case ATA_PROT_DMA: - WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING); + WARN_ON_ONCE(qc->tf.flags & ATA_TFLAG_POLLING); ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */ ap->ops->bmdma_setup(qc); /* set up bmdma */ @@ -1489,7 +1567,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc) break; case ATAPI_PROT_DMA: - WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING); + WARN_ON_ONCE(qc->tf.flags & ATA_TFLAG_POLLING); ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */ ap->ops->bmdma_setup(qc); /* set up bmdma */ @@ -1501,12 +1579,13 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc) break; default: - WARN_ON(1); + WARN_ON_ONCE(1); return AC_ERR_SYSTEM; } return 0; } +EXPORT_SYMBOL_GPL(ata_sff_qc_issue); /** * ata_sff_qc_fill_rtf - fill result TF using ->sff_tf_read @@ -1526,6 +1605,7 @@ bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc) qc->ap->ops->sff_tf_read(qc->ap, &qc->result_tf); return true; } +EXPORT_SYMBOL_GPL(ata_sff_qc_fill_rtf); /** * ata_sff_host_intr - Handle host interrupt for given (port, task) @@ -1623,6 +1703,7 @@ idle_irq: #endif return 0; /* irq not handled */ } +EXPORT_SYMBOL_GPL(ata_sff_host_intr); /** * ata_sff_interrupt - Default ATA host interrupt handler @@ -1667,6 +1748,7 @@ irqreturn_t ata_sff_interrupt(int irq, void *dev_instance) return IRQ_RETVAL(handled); } +EXPORT_SYMBOL_GPL(ata_sff_interrupt); /** * ata_sff_freeze - Freeze SFF controller port @@ -1695,6 +1777,7 @@ void ata_sff_freeze(struct ata_port *ap) ap->ops->sff_irq_clear(ap); } +EXPORT_SYMBOL_GPL(ata_sff_freeze); /** * ata_sff_thaw - Thaw SFF controller port @@ -1712,6 +1795,7 @@ void ata_sff_thaw(struct ata_port *ap) ap->ops->sff_irq_clear(ap); ap->ops->sff_irq_on(ap); } +EXPORT_SYMBOL_GPL(ata_sff_thaw); /** * ata_sff_prereset - prepare SFF link for reset @@ -1753,6 +1837,7 @@ int ata_sff_prereset(struct ata_link *link, unsigned long deadline) return 0; } +EXPORT_SYMBOL_GPL(ata_sff_prereset); /** * ata_devchk - PATA device presence detection @@ -1865,6 +1950,7 @@ unsigned int ata_sff_dev_classify(struct ata_device *dev, int present, return class; } +EXPORT_SYMBOL_GPL(ata_sff_dev_classify); /** * ata_sff_wait_after_reset - wait for devices to become ready after reset @@ -1941,6 +2027,7 @@ int ata_sff_wait_after_reset(struct ata_link *link, unsigned int devmask, return ret; } +EXPORT_SYMBOL_GPL(ata_sff_wait_after_reset); static int ata_bus_softreset(struct ata_port *ap, unsigned int devmask, unsigned long deadline) @@ -2013,6 +2100,7 @@ int ata_sff_softreset(struct ata_link *link, unsigned int *classes, DPRINTK("EXIT, classes[0]=%u [1]=%u\n", classes[0], classes[1]); return 0; } +EXPORT_SYMBOL_GPL(ata_sff_softreset); /** * sata_sff_hardreset - reset host port via SATA phy reset @@ -2045,6 +2133,7 @@ int sata_sff_hardreset(struct ata_link *link, unsigned int *class, DPRINTK("EXIT, class=%u\n", *class); return rc; } +EXPORT_SYMBOL_GPL(sata_sff_hardreset); /** * ata_sff_postreset - SFF postreset callback @@ -2080,6 +2169,7 @@ void ata_sff_postreset(struct ata_link *link, unsigned int *classes) if (ap->ioaddr.ctl_addr) iowrite8(ap->ctl, ap->ioaddr.ctl_addr); } +EXPORT_SYMBOL_GPL(ata_sff_postreset); /** * ata_sff_error_handler - Stock error handler for BMDMA controller @@ -2152,6 +2242,7 @@ void ata_sff_error_handler(struct ata_port *ap) ata_do_eh(ap, ap->ops->prereset, softreset, hardreset, ap->ops->postreset); } +EXPORT_SYMBOL_GPL(ata_sff_error_handler); /** * ata_sff_post_internal_cmd - Stock post_internal_cmd for SFF controller @@ -2174,6 +2265,7 @@ void ata_sff_post_internal_cmd(struct ata_queued_cmd *qc) spin_unlock_irqrestore(ap->lock, flags); } +EXPORT_SYMBOL_GPL(ata_sff_post_internal_cmd); /** * ata_sff_port_start - Set port up for dma. @@ -2194,6 +2286,7 @@ int ata_sff_port_start(struct ata_port *ap) return ata_port_start(ap); return 0; } +EXPORT_SYMBOL_GPL(ata_sff_port_start); /** * ata_sff_std_ports - initialize ioaddr with standard port offsets. @@ -2219,6 +2312,7 @@ void ata_sff_std_ports(struct ata_ioports *ioaddr) ioaddr->status_addr = ioaddr->cmd_addr + ATA_REG_STATUS; ioaddr->command_addr = ioaddr->cmd_addr + ATA_REG_CMD; } +EXPORT_SYMBOL_GPL(ata_sff_std_ports); unsigned long ata_bmdma_mode_filter(struct ata_device *adev, unsigned long xfer_mask) @@ -2230,6 +2324,7 @@ unsigned long ata_bmdma_mode_filter(struct ata_device *adev, xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA); return xfer_mask; } +EXPORT_SYMBOL_GPL(ata_bmdma_mode_filter); /** * ata_bmdma_setup - Set up PCI IDE BMDMA transaction @@ -2258,6 +2353,7 @@ void ata_bmdma_setup(struct ata_queued_cmd *qc) /* issue r/w command */ ap->ops->sff_exec_command(ap, &qc->tf); } +EXPORT_SYMBOL_GPL(ata_bmdma_setup); /** * ata_bmdma_start - Start a PCI IDE BMDMA transaction @@ -2290,6 +2386,7 @@ void ata_bmdma_start(struct ata_queued_cmd *qc) * unneccessarily delayed for MMIO */ } +EXPORT_SYMBOL_GPL(ata_bmdma_start); /** * ata_bmdma_stop - Stop PCI IDE BMDMA transfer @@ -2314,6 +2411,7 @@ void ata_bmdma_stop(struct ata_queued_cmd *qc) /* one-PIO-cycle guaranteed wait, per spec, for HDMA1:0 transition */ ata_sff_dma_pause(ap); } +EXPORT_SYMBOL_GPL(ata_bmdma_stop); /** * ata_bmdma_status - Read PCI IDE BMDMA status @@ -2330,6 +2428,7 @@ u8 ata_bmdma_status(struct ata_port *ap) { return ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS); } +EXPORT_SYMBOL_GPL(ata_bmdma_status); /** * ata_bus_reset - reset host port and associated ATA channel @@ -2422,6 +2521,7 @@ err_out: DPRINTK("EXIT\n"); } +EXPORT_SYMBOL_GPL(ata_bus_reset); #ifdef CONFIG_PCI @@ -2449,6 +2549,7 @@ int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev) return -EOPNOTSUPP; return 0; } +EXPORT_SYMBOL_GPL(ata_pci_bmdma_clear_simplex); /** * ata_pci_bmdma_init - acquire PCI BMDMA resources and init ATA host @@ -2501,11 +2602,12 @@ int ata_pci_bmdma_init(struct ata_host *host) host->flags |= ATA_HOST_SIMPLEX; ata_port_desc(ap, "bmdma 0x%llx", - (unsigned long long)pci_resource_start(pdev, 4) + 8 * i); + (unsigned long long)pci_resource_start(pdev, 4) + 8 * i); } return 0; } +EXPORT_SYMBOL_GPL(ata_pci_bmdma_init); static int ata_resources_present(struct pci_dev *pdev, int port) { @@ -2513,7 +2615,7 @@ static int ata_resources_present(struct pci_dev *pdev, int port) /* Check the PCI resources for this channel are enabled */ port = port * 2; - for (i = 0; i < 2; i ++) { + for (i = 0; i < 2; i++) { if (pci_resource_start(pdev, port + i) == 0 || pci_resource_len(pdev, port + i) == 0) return 0; @@ -2598,6 +2700,7 @@ int ata_pci_sff_init_host(struct ata_host *host) return 0; } +EXPORT_SYMBOL_GPL(ata_pci_sff_init_host); /** * ata_pci_sff_prepare_host - helper to prepare native PCI ATA host @@ -2615,7 +2718,7 @@ int ata_pci_sff_init_host(struct ata_host *host) * 0 on success, -errno otherwise. */ int ata_pci_sff_prepare_host(struct pci_dev *pdev, - const struct ata_port_info * const * ppi, + const struct ata_port_info * const *ppi, struct ata_host **r_host) { struct ata_host *host; @@ -2645,17 +2748,18 @@ int ata_pci_sff_prepare_host(struct pci_dev *pdev, *r_host = host; return 0; - err_bmdma: +err_bmdma: /* This is necessary because PCI and iomap resources are * merged and releasing the top group won't release the * acquired resources if some of those have been acquired * before entering this function. */ pcim_iounmap_regions(pdev, 0xf); - err_out: +err_out: devres_release_group(&pdev->dev, NULL); return rc; } +EXPORT_SYMBOL_GPL(ata_pci_sff_prepare_host); /** * ata_pci_sff_activate_host - start SFF host, request IRQ and register it @@ -2741,7 +2845,7 @@ int ata_pci_sff_activate_host(struct ata_host *host, } rc = ata_host_register(host, sht); - out: +out: if (rc == 0) devres_remove_group(dev, NULL); else @@ -2749,6 +2853,7 @@ int ata_pci_sff_activate_host(struct ata_host *host, return rc; } +EXPORT_SYMBOL_GPL(ata_pci_sff_activate_host); /** * ata_pci_sff_init_one - Initialize/register PCI IDE host controller @@ -2776,7 +2881,7 @@ int ata_pci_sff_activate_host(struct ata_host *host, * Zero on success, negative on errno-based value on error. */ int ata_pci_sff_init_one(struct pci_dev *pdev, - const struct ata_port_info * const * ppi, + const struct ata_port_info * const *ppi, struct scsi_host_template *sht, void *host_priv) { struct device *dev = &pdev->dev; @@ -2815,7 +2920,7 @@ int ata_pci_sff_init_one(struct pci_dev *pdev, pci_set_master(pdev); rc = ata_pci_sff_activate_host(host, ata_sff_interrupt, sht); - out: +out: if (rc == 0) devres_remove_group(&pdev->dev, NULL); else @@ -2823,54 +2928,7 @@ int ata_pci_sff_init_one(struct pci_dev *pdev, return rc; } +EXPORT_SYMBOL_GPL(ata_pci_sff_init_one); #endif /* CONFIG_PCI */ -EXPORT_SYMBOL_GPL(ata_sff_port_ops); -EXPORT_SYMBOL_GPL(ata_bmdma_port_ops); -EXPORT_SYMBOL_GPL(ata_sff_qc_prep); -EXPORT_SYMBOL_GPL(ata_sff_dumb_qc_prep); -EXPORT_SYMBOL_GPL(ata_sff_dev_select); -EXPORT_SYMBOL_GPL(ata_sff_check_status); -EXPORT_SYMBOL_GPL(ata_sff_dma_pause); -EXPORT_SYMBOL_GPL(ata_sff_pause); -EXPORT_SYMBOL_GPL(ata_sff_busy_sleep); -EXPORT_SYMBOL_GPL(ata_sff_wait_ready); -EXPORT_SYMBOL_GPL(ata_sff_tf_load); -EXPORT_SYMBOL_GPL(ata_sff_tf_read); -EXPORT_SYMBOL_GPL(ata_sff_exec_command); -EXPORT_SYMBOL_GPL(ata_sff_data_xfer); -EXPORT_SYMBOL_GPL(ata_sff_data_xfer_noirq); -EXPORT_SYMBOL_GPL(ata_sff_irq_on); -EXPORT_SYMBOL_GPL(ata_sff_irq_clear); -EXPORT_SYMBOL_GPL(ata_sff_hsm_move); -EXPORT_SYMBOL_GPL(ata_sff_qc_issue); -EXPORT_SYMBOL_GPL(ata_sff_qc_fill_rtf); -EXPORT_SYMBOL_GPL(ata_sff_host_intr); -EXPORT_SYMBOL_GPL(ata_sff_interrupt); -EXPORT_SYMBOL_GPL(ata_sff_freeze); -EXPORT_SYMBOL_GPL(ata_sff_thaw); -EXPORT_SYMBOL_GPL(ata_sff_prereset); -EXPORT_SYMBOL_GPL(ata_sff_dev_classify); -EXPORT_SYMBOL_GPL(ata_sff_wait_after_reset); -EXPORT_SYMBOL_GPL(ata_sff_softreset); -EXPORT_SYMBOL_GPL(sata_sff_hardreset); -EXPORT_SYMBOL_GPL(ata_sff_postreset); -EXPORT_SYMBOL_GPL(ata_sff_error_handler); -EXPORT_SYMBOL_GPL(ata_sff_post_internal_cmd); -EXPORT_SYMBOL_GPL(ata_sff_port_start); -EXPORT_SYMBOL_GPL(ata_sff_std_ports); -EXPORT_SYMBOL_GPL(ata_bmdma_mode_filter); -EXPORT_SYMBOL_GPL(ata_bmdma_setup); -EXPORT_SYMBOL_GPL(ata_bmdma_start); -EXPORT_SYMBOL_GPL(ata_bmdma_stop); -EXPORT_SYMBOL_GPL(ata_bmdma_status); -EXPORT_SYMBOL_GPL(ata_bus_reset); -#ifdef CONFIG_PCI -EXPORT_SYMBOL_GPL(ata_pci_bmdma_clear_simplex); -EXPORT_SYMBOL_GPL(ata_pci_bmdma_init); -EXPORT_SYMBOL_GPL(ata_pci_sff_init_host); -EXPORT_SYMBOL_GPL(ata_pci_sff_prepare_host); -EXPORT_SYMBOL_GPL(ata_pci_sff_activate_host); -EXPORT_SYMBOL_GPL(ata_pci_sff_init_one); -#endif /* CONFIG_PCI */ diff --git a/drivers/ata/pata_acpi.c b/drivers/ata/pata_acpi.c index e2e332d8ff95..8b77a9802df1 100644 --- a/drivers/ata/pata_acpi.c +++ b/drivers/ata/pata_acpi.c @@ -13,12 +13,6 @@ #include <linux/device.h> #include <scsi/scsi_host.h> #include <acpi/acpi_bus.h> -#include <acpi/acnames.h> -#include <acpi/acnamesp.h> -#include <acpi/acparser.h> -#include <acpi/acexcep.h> -#include <acpi/acmacros.h> -#include <acpi/actypes.h> #include <linux/libata.h> #include <linux/ata.h> diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c index 73c466e452ca..eb99dbe78081 100644 --- a/drivers/ata/pata_ali.c +++ b/drivers/ata/pata_ali.c @@ -19,7 +19,9 @@ * * TODO/CHECK * Cannot have ATAPI on both master & slave for rev < c2 (???) but - * otherwise should do atapi DMA. + * otherwise should do atapi DMA (For now for old we do PIO only for + * ATAPI) + * Review Sunblade workaround. */ #include <linux/kernel.h> @@ -33,12 +35,14 @@ #include <linux/dmi.h> #define DRV_NAME "pata_ali" -#define DRV_VERSION "0.7.5" +#define DRV_VERSION "0.7.8" static int ali_atapi_dma = 0; module_param_named(atapi_dma, ali_atapi_dma, int, 0644); MODULE_PARM_DESC(atapi_dma, "Enable ATAPI DMA (0=disable, 1=enable)"); +static struct pci_dev *ali_isa_bridge; + /* * Cable special cases */ @@ -147,8 +151,7 @@ static void ali_fifo_control(struct ata_port *ap, struct ata_device *adev, int o pci_read_config_byte(pdev, pio_fifo, &fifo); fifo &= ~(0x0F << shift); - if (on) - fifo |= (on << shift); + fifo |= (on << shift); pci_write_config_byte(pdev, pio_fifo, fifo); } @@ -337,6 +340,23 @@ static int ali_check_atapi_dma(struct ata_queued_cmd *qc) return 0; } +static void ali_c2_c3_postreset(struct ata_link *link, unsigned int *classes) +{ + u8 r; + int port_bit = 4 << link->ap->port_no; + + /* If our bridge is an ALI 1533 then do the extra work */ + if (ali_isa_bridge) { + /* Tristate and re-enable the bus signals */ + pci_read_config_byte(ali_isa_bridge, 0x58, &r); + r &= ~port_bit; + pci_write_config_byte(ali_isa_bridge, 0x58, r); + r |= port_bit; + pci_write_config_byte(ali_isa_bridge, 0x58, r); + } + ata_sff_postreset(link, classes); +} + static struct scsi_host_template ali_sht = { ATA_BMDMA_SHT(DRV_NAME), }; @@ -349,10 +369,11 @@ static struct ata_port_operations ali_early_port_ops = { .inherits = &ata_sff_port_ops, .cable_detect = ata_cable_40wire, .set_piomode = ali_set_piomode, + .sff_data_xfer = ata_sff_data_xfer32, }; static const struct ata_port_operations ali_dma_base_ops = { - .inherits = &ata_bmdma_port_ops, + .inherits = &ata_bmdma32_port_ops, .set_piomode = ali_set_piomode, .set_dmamode = ali_set_dmamode, }; @@ -377,6 +398,17 @@ static struct ata_port_operations ali_c2_port_ops = { .check_atapi_dma = ali_check_atapi_dma, .cable_detect = ali_c2_cable_detect, .dev_config = ali_lock_sectors, + .postreset = ali_c2_c3_postreset, +}; + +/* + * Port operations for DMA capable ALi with cable detect + */ +static struct ata_port_operations ali_c4_port_ops = { + .inherits = &ali_dma_base_ops, + .check_atapi_dma = ali_check_atapi_dma, + .cable_detect = ali_c2_cable_detect, + .dev_config = ali_lock_sectors, }; /* @@ -401,52 +433,49 @@ static struct ata_port_operations ali_c5_port_ops = { static void ali_init_chipset(struct pci_dev *pdev) { u8 tmp; - struct pci_dev *north, *isa_bridge; + struct pci_dev *north; /* * The chipset revision selects the driver operations and * mode data. */ - if (pdev->revision >= 0x20 && pdev->revision < 0xC2) { - /* 1543-E/F, 1543C-C, 1543C-D, 1543C-E */ - pci_read_config_byte(pdev, 0x4B, &tmp); - /* Clear CD-ROM DMA write bit */ - tmp &= 0x7F; - pci_write_config_byte(pdev, 0x4B, tmp); - } else if (pdev->revision >= 0xC2) { - /* Enable cable detection logic */ + if (pdev->revision <= 0x20) { + pci_read_config_byte(pdev, 0x53, &tmp); + tmp |= 0x03; + pci_write_config_byte(pdev, 0x53, tmp); + } else { + pci_read_config_byte(pdev, 0x4a, &tmp); + pci_write_config_byte(pdev, 0x4a, tmp | 0x20); pci_read_config_byte(pdev, 0x4B, &tmp); - pci_write_config_byte(pdev, 0x4B, tmp | 0x08); - } - north = pci_get_bus_and_slot(0, PCI_DEVFN(0,0)); - isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); - - if (north && north->vendor == PCI_VENDOR_ID_AL && isa_bridge) { - /* Configure the ALi bridge logic. For non ALi rely on BIOS. - Set the south bridge enable bit */ - pci_read_config_byte(isa_bridge, 0x79, &tmp); - if (pdev->revision == 0xC2) - pci_write_config_byte(isa_bridge, 0x79, tmp | 0x04); - else if (pdev->revision > 0xC2 && pdev->revision < 0xC5) - pci_write_config_byte(isa_bridge, 0x79, tmp | 0x02); - } - if (pdev->revision >= 0x20) { + if (pdev->revision < 0xC2) + /* 1543-E/F, 1543C-C, 1543C-D, 1543C-E */ + /* Clear CD-ROM DMA write bit */ + tmp &= 0x7F; + /* Cable and UDMA */ + pci_write_config_byte(pdev, 0x4B, tmp | 0x09); /* * CD_ROM DMA on (0x53 bit 0). Enable this even if we want * to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control * via 0x54/55. */ pci_read_config_byte(pdev, 0x53, &tmp); - if (pdev->revision <= 0x20) - tmp &= ~0x02; if (pdev->revision >= 0xc7) tmp |= 0x03; else tmp |= 0x01; /* CD_ROM enable for DMA */ pci_write_config_byte(pdev, 0x53, tmp); } - pci_dev_put(isa_bridge); + north = pci_get_bus_and_slot(0, PCI_DEVFN(0,0)); + if (north && north->vendor == PCI_VENDOR_ID_AL && ali_isa_bridge) { + /* Configure the ALi bridge logic. For non ALi rely on BIOS. + Set the south bridge enable bit */ + pci_read_config_byte(ali_isa_bridge, 0x79, &tmp); + if (pdev->revision == 0xC2) + pci_write_config_byte(ali_isa_bridge, 0x79, tmp | 0x04); + else if (pdev->revision > 0xC2 && pdev->revision < 0xC5) + pci_write_config_byte(ali_isa_bridge, 0x79, tmp | 0x02); + } pci_dev_put(north); ata_pci_bmdma_clear_simplex(pdev); } @@ -503,7 +532,7 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) .pio_mask = 0x1f, .mwdma_mask = 0x07, .udma_mask = ATA_UDMA5, - .port_ops = &ali_c2_port_ops + .port_ops = &ali_c4_port_ops }; /* Revision 0xC5 is UDMA133 with LBA48 DMA */ static const struct ata_port_info info_c5 = { @@ -516,7 +545,6 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) const struct ata_port_info *ppi[] = { NULL, NULL }; u8 tmp; - struct pci_dev *isa_bridge; int rc; rc = pcim_enable_device(pdev); @@ -543,14 +571,12 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) ali_init_chipset(pdev); - isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); - if (isa_bridge && pdev->revision >= 0x20 && pdev->revision < 0xC2) { + if (ali_isa_bridge && pdev->revision >= 0x20 && pdev->revision < 0xC2) { /* Are we paired with a UDMA capable chip */ - pci_read_config_byte(isa_bridge, 0x5E, &tmp); + pci_read_config_byte(ali_isa_bridge, 0x5E, &tmp); if ((tmp & 0x1E) == 0x12) ppi[0] = &info_20_udma; } - pci_dev_put(isa_bridge); return ata_pci_sff_init_one(pdev, ppi, &ali_sht, NULL); } @@ -590,13 +616,20 @@ static struct pci_driver ali_pci_driver = { static int __init ali_init(void) { - return pci_register_driver(&ali_pci_driver); + int ret; + ali_isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); + + ret = pci_register_driver(&ali_pci_driver); + if (ret < 0) + pci_dev_put(ali_isa_bridge); + return ret; } static void __exit ali_exit(void) { pci_unregister_driver(&ali_pci_driver); + pci_dev_put(ali_isa_bridge); } diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c index 0ec9c7d9fe9d..63719ab9ea44 100644 --- a/drivers/ata/pata_amd.c +++ b/drivers/ata/pata_amd.c @@ -24,7 +24,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_amd" -#define DRV_VERSION "0.3.10" +#define DRV_VERSION "0.3.11" /** * timing_setup - shared timing computation and load @@ -345,7 +345,7 @@ static struct scsi_host_template amd_sht = { }; static const struct ata_port_operations amd_base_port_ops = { - .inherits = &ata_bmdma_port_ops, + .inherits = &ata_bmdma32_port_ops, .prereset = amd_pre_reset, }; diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c index 0e2cde8f9973..506adde8ebb3 100644 --- a/drivers/ata/pata_atiixp.c +++ b/drivers/ata/pata_atiixp.c @@ -32,21 +32,6 @@ enum { ATIIXP_IDE_UDMA_MODE = 0x56 }; -static int atiixp_pre_reset(struct ata_link *link, unsigned long deadline) -{ - struct ata_port *ap = link->ap; - static const struct pci_bits atiixp_enable_bits[] = { - { 0x48, 1, 0x01, 0x00 }, - { 0x48, 1, 0x08, 0x00 } - }; - struct pci_dev *pdev = to_pci_dev(ap->host->dev); - - if (!pci_test_config_bits(pdev, &atiixp_enable_bits[ap->port_no])) - return -ENOENT; - - return ata_sff_prereset(link, deadline); -} - static int atiixp_cable_detect(struct ata_port *ap) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); @@ -229,10 +214,9 @@ static struct ata_port_operations atiixp_port_ops = { .cable_detect = atiixp_cable_detect, .set_piomode = atiixp_set_piomode, .set_dmamode = atiixp_set_dmamode, - .prereset = atiixp_pre_reset, }; -static int atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id) +static int atiixp_init_one(struct pci_dev *pdev, const struct pci_device_id *id) { static const struct ata_port_info info = { .flags = ATA_FLAG_SLAVE_POSS, @@ -241,8 +225,18 @@ static int atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id) .udma_mask = 0x3F, .port_ops = &atiixp_port_ops }; - const struct ata_port_info *ppi[] = { &info, NULL }; - return ata_pci_sff_init_one(dev, ppi, &atiixp_sht, NULL); + static const struct pci_bits atiixp_enable_bits[] = { + { 0x48, 1, 0x01, 0x00 }, + { 0x48, 1, 0x08, 0x00 } + }; + const struct ata_port_info *ppi[] = { &info, &info }; + int i; + + for (i = 0; i < 2; i++) + if (!pci_test_config_bits(pdev, &atiixp_enable_bits[i])) + ppi[i] = &ata_dummy_port_info; + + return ata_pci_sff_init_one(pdev, ppi, &atiixp_sht, NULL); } static const struct pci_device_id atiixp[] = { diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c index e0c4f05d7d57..65c28e5a6cd7 100644 --- a/drivers/ata/pata_hpt366.c +++ b/drivers/ata/pata_hpt366.c @@ -30,7 +30,7 @@ #define DRV_VERSION "0.6.2" struct hpt_clock { - u8 xfer_speed; + u8 xfer_mode; u32 timing; }; @@ -189,28 +189,6 @@ static unsigned long hpt366_filter(struct ata_device *adev, unsigned long mask) return ata_bmdma_mode_filter(adev, mask); } -/** - * hpt36x_find_mode - reset the hpt36x bus - * @ap: ATA port - * @speed: transfer mode - * - * Return the 32bit register programming information for this channel - * that matches the speed provided. - */ - -static u32 hpt36x_find_mode(struct ata_port *ap, int speed) -{ - struct hpt_clock *clocks = ap->host->private_data; - - while(clocks->xfer_speed) { - if (clocks->xfer_speed == speed) - return clocks->timing; - clocks++; - } - BUG(); - return 0xffffffffU; /* silence compiler warning */ -} - static int hpt36x_cable_detect(struct ata_port *ap) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); @@ -226,25 +204,16 @@ static int hpt36x_cable_detect(struct ata_port *ap) return ATA_CBL_PATA80; } -/** - * hpt366_set_piomode - PIO setup - * @ap: ATA interface - * @adev: device on the interface - * - * Perform PIO mode setup. - */ - -static void hpt366_set_piomode(struct ata_port *ap, struct ata_device *adev) +static void hpt366_set_mode(struct ata_port *ap, struct ata_device *adev, + u8 mode) { + struct hpt_clock *clocks = ap->host->private_data; struct pci_dev *pdev = to_pci_dev(ap->host->dev); - u32 addr1, addr2; - u32 reg; - u32 mode; + u32 addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no); + u32 addr2 = 0x51 + 4 * ap->port_no; + u32 mask, reg; u8 fast; - addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no); - addr2 = 0x51 + 4 * ap->port_no; - /* Fast interrupt prediction disable, hold off interrupt disable */ pci_read_config_byte(pdev, addr2, &fast); if (fast & 0x80) { @@ -252,12 +221,43 @@ static void hpt366_set_piomode(struct ata_port *ap, struct ata_device *adev) pci_write_config_byte(pdev, addr2, fast); } + /* determine timing mask and find matching clock entry */ + if (mode < XFER_MW_DMA_0) + mask = 0xc1f8ffff; + else if (mode < XFER_UDMA_0) + mask = 0x303800ff; + else + mask = 0x30070000; + + while (clocks->xfer_mode) { + if (clocks->xfer_mode == mode) + break; + clocks++; + } + if (!clocks->xfer_mode) + BUG(); + + /* + * Combine new mode bits with old config bits and disable + * on-chip PIO FIFO/buffer (and PIO MST mode as well) to avoid + * problems handling I/O errors later. + */ pci_read_config_dword(pdev, addr1, ®); - mode = hpt36x_find_mode(ap, adev->pio_mode); - mode &= ~0x8000000; /* No FIFO in PIO */ - mode &= ~0x30070000; /* Leave config bits alone */ - reg &= 0x30070000; /* Strip timing bits */ - pci_write_config_dword(pdev, addr1, reg | mode); + reg = ((reg & ~mask) | (clocks->timing & mask)) & ~0xc0000000; + pci_write_config_dword(pdev, addr1, reg); +} + +/** + * hpt366_set_piomode - PIO setup + * @ap: ATA interface + * @adev: device on the interface + * + * Perform PIO mode setup. + */ + +static void hpt366_set_piomode(struct ata_port *ap, struct ata_device *adev) +{ + hpt366_set_mode(ap, adev, adev->pio_mode); } /** @@ -271,28 +271,7 @@ static void hpt366_set_piomode(struct ata_port *ap, struct ata_device *adev) static void hpt366_set_dmamode(struct ata_port *ap, struct ata_device *adev) { - struct pci_dev *pdev = to_pci_dev(ap->host->dev); - u32 addr1, addr2; - u32 reg; - u32 mode; - u8 fast; - - addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no); - addr2 = 0x51 + 4 * ap->port_no; - - /* Fast interrupt prediction disable, hold off interrupt disable */ - pci_read_config_byte(pdev, addr2, &fast); - if (fast & 0x80) { - fast &= ~0x80; - pci_write_config_byte(pdev, addr2, fast); - } - - pci_read_config_dword(pdev, addr1, ®); - mode = hpt36x_find_mode(ap, adev->dma_mode); - mode |= 0x8000000; /* FIFO in MWDMA or UDMA */ - mode &= ~0xC0000000; /* Leave config bits alone */ - reg &= 0xC0000000; /* Strip timing bits */ - pci_write_config_dword(pdev, addr1, reg | mode); + hpt366_set_mode(ap, adev, adev->dma_mode); } static struct scsi_host_template hpt36x_sht = { diff --git a/drivers/ata/pata_hpt3x3.c b/drivers/ata/pata_hpt3x3.c index f11a320337c0..f19cc645881a 100644 --- a/drivers/ata/pata_hpt3x3.c +++ b/drivers/ata/pata_hpt3x3.c @@ -23,7 +23,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_hpt3x3" -#define DRV_VERSION "0.5.3" +#define DRV_VERSION "0.6.1" /** * hpt3x3_set_piomode - PIO setup @@ -80,14 +80,48 @@ static void hpt3x3_set_dmamode(struct ata_port *ap, struct ata_device *adev) r2 &= ~(0x11 << dn); /* Clear MWDMA and UDMA bits */ if (adev->dma_mode >= XFER_UDMA_0) - r2 |= (0x10 << dn); /* Ultra mode */ + r2 |= (0x01 << dn); /* Ultra mode */ else - r2 |= (0x01 << dn); /* MWDMA */ + r2 |= (0x10 << dn); /* MWDMA */ pci_write_config_dword(pdev, 0x44, r1); pci_write_config_dword(pdev, 0x48, r2); } -#endif /* CONFIG_PATA_HPT3X3_DMA */ + +/** + * hpt3x3_freeze - DMA workaround + * @ap: port to freeze + * + * When freezing an HPT3x3 we must stop any pending DMA before + * writing to the control register or the chip will hang + */ + +static void hpt3x3_freeze(struct ata_port *ap) +{ + void __iomem *mmio = ap->ioaddr.bmdma_addr; + + iowrite8(ioread8(mmio + ATA_DMA_CMD) & ~ ATA_DMA_START, + mmio + ATA_DMA_CMD); + ata_sff_dma_pause(ap); + ata_sff_freeze(ap); +} + +/** + * hpt3x3_bmdma_setup - DMA workaround + * @qc: Queued command + * + * When issuing BMDMA we must clean up the error/active bits in + * software on this device + */ + +static void hpt3x3_bmdma_setup(struct ata_queued_cmd *qc) +{ + struct ata_port *ap = qc->ap; + u8 r = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS); + r |= ATA_DMA_INTR | ATA_DMA_ERR; + iowrite8(r, ap->ioaddr.bmdma_addr + ATA_DMA_STATUS); + return ata_bmdma_setup(qc); +} /** * hpt3x3_atapi_dma - ATAPI DMA check @@ -101,18 +135,23 @@ static int hpt3x3_atapi_dma(struct ata_queued_cmd *qc) return 1; } +#endif /* CONFIG_PATA_HPT3X3_DMA */ + static struct scsi_host_template hpt3x3_sht = { ATA_BMDMA_SHT(DRV_NAME), }; static struct ata_port_operations hpt3x3_port_ops = { .inherits = &ata_bmdma_port_ops, - .check_atapi_dma= hpt3x3_atapi_dma, .cable_detect = ata_cable_40wire, .set_piomode = hpt3x3_set_piomode, #if defined(CONFIG_PATA_HPT3X3_DMA) .set_dmamode = hpt3x3_set_dmamode, + .bmdma_setup = hpt3x3_bmdma_setup, + .check_atapi_dma= hpt3x3_atapi_dma, + .freeze = hpt3x3_freeze, #endif + }; /** diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c index f828a29d7756..f1bb2f9fecbf 100644 --- a/drivers/ata/pata_it821x.c +++ b/drivers/ata/pata_it821x.c @@ -80,7 +80,7 @@ #define DRV_NAME "pata_it821x" -#define DRV_VERSION "0.4.0" +#define DRV_VERSION "0.4.2" struct it821x_dev { @@ -494,8 +494,6 @@ static int it821x_smart_set_mode(struct ata_link *link, struct ata_device **unus * special. In our case we need to lock the sector count to avoid * blowing the brains out of the firmware with large LBA48 requests * - * FIXME: When FUA appears we need to block FUA too. And SMART and - * basically we need to filter commands for this chip. */ static void it821x_dev_config(struct ata_device *adev) @@ -890,6 +888,13 @@ static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id) .flags = ATA_FLAG_SLAVE_POSS, .pio_mask = 0x1f, .mwdma_mask = 0x07, + .udma_mask = ATA_UDMA6, + .port_ops = &it821x_rdc_port_ops + }; + static const struct ata_port_info info_rdc_11 = { + .flags = ATA_FLAG_SLAVE_POSS, + .pio_mask = 0x1f, + .mwdma_mask = 0x07, /* No UDMA */ .port_ops = &it821x_rdc_port_ops }; @@ -903,7 +908,11 @@ static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id) return rc; if (pdev->vendor == PCI_VENDOR_ID_RDC) { - ppi[0] = &info_rdc; + /* Deal with Vortex86SX */ + if (pdev->revision == 0x11) + ppi[0] = &info_rdc_11; + else + ppi[0] = &info_rdc; } else { /* Force the card into bypass mode if so requested */ if (it8212_noraid) { diff --git a/drivers/ata/pata_mpiix.c b/drivers/ata/pata_mpiix.c index 7c8faa48b5f3..aa576cac4d17 100644 --- a/drivers/ata/pata_mpiix.c +++ b/drivers/ata/pata_mpiix.c @@ -35,7 +35,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_mpiix" -#define DRV_VERSION "0.7.6" +#define DRV_VERSION "0.7.7" enum { IDETIM = 0x6C, /* IDE control register */ @@ -146,6 +146,7 @@ static struct ata_port_operations mpiix_port_ops = { .cable_detect = ata_cable_40wire, .set_piomode = mpiix_set_piomode, .prereset = mpiix_pre_reset, + .sff_data_xfer = ata_sff_data_xfer32, }; static int mpiix_init_one(struct pci_dev *dev, const struct pci_device_id *id) diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c new file mode 100644 index 000000000000..0fe4ef309c62 --- /dev/null +++ b/drivers/ata/pata_octeon_cf.c @@ -0,0 +1,965 @@ +/* + * Driver for the Octeon bootbus compact flash. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2005 - 2009 Cavium Networks + * Copyright (C) 2008 Wind River Systems + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/libata.h> +#include <linux/irq.h> +#include <linux/platform_device.h> +#include <linux/workqueue.h> +#include <scsi/scsi_host.h> + +#include <asm/octeon/octeon.h> + +/* + * The Octeon bootbus compact flash interface is connected in at least + * 3 different configurations on various evaluation boards: + * + * -- 8 bits no irq, no DMA + * -- 16 bits no irq, no DMA + * -- 16 bits True IDE mode with DMA, but no irq. + * + * In the last case the DMA engine can generate an interrupt when the + * transfer is complete. For the first two cases only PIO is supported. + * + */ + +#define DRV_NAME "pata_octeon_cf" +#define DRV_VERSION "2.1" + + +struct octeon_cf_port { + struct workqueue_struct *wq; + struct delayed_work delayed_finish; + struct ata_port *ap; + int dma_finished; +}; + +static struct scsi_host_template octeon_cf_sht = { + ATA_PIO_SHT(DRV_NAME), +}; + +/** + * Convert nanosecond based time to setting used in the + * boot bus timing register, based on timing multiple + */ +static unsigned int ns_to_tim_reg(unsigned int tim_mult, unsigned int nsecs) +{ + unsigned int val; + + /* + * Compute # of eclock periods to get desired duration in + * nanoseconds. + */ + val = DIV_ROUND_UP(nsecs * (octeon_get_clock_rate() / 1000000), + 1000 * tim_mult); + + return val; +} + +static void octeon_cf_set_boot_reg_cfg(int cs) +{ + union cvmx_mio_boot_reg_cfgx reg_cfg; + reg_cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_REG_CFGX(cs)); + reg_cfg.s.dmack = 0; /* Don't assert DMACK on access */ + reg_cfg.s.tim_mult = 2; /* Timing mutiplier 2x */ + reg_cfg.s.rd_dly = 0; /* Sample on falling edge of BOOT_OE */ + reg_cfg.s.sam = 0; /* Don't combine write and output enable */ + reg_cfg.s.we_ext = 0; /* No write enable extension */ + reg_cfg.s.oe_ext = 0; /* No read enable extension */ + reg_cfg.s.en = 1; /* Enable this region */ + reg_cfg.s.orbit = 0; /* Don't combine with previous region */ + reg_cfg.s.ale = 0; /* Don't do address multiplexing */ + cvmx_write_csr(CVMX_MIO_BOOT_REG_CFGX(cs), reg_cfg.u64); +} + +/** + * Called after libata determines the needed PIO mode. This + * function programs the Octeon bootbus regions to support the + * timing requirements of the PIO mode. + * + * @ap: ATA port information + * @dev: ATA device + */ +static void octeon_cf_set_piomode(struct ata_port *ap, struct ata_device *dev) +{ + struct octeon_cf_data *ocd = ap->dev->platform_data; + union cvmx_mio_boot_reg_timx reg_tim; + int cs = ocd->base_region; + int T; + struct ata_timing timing; + + int use_iordy; + int trh; + int pause; + /* These names are timing parameters from the ATA spec */ + int t1; + int t2; + int t2i; + + T = (int)(2000000000000LL / octeon_get_clock_rate()); + + if (ata_timing_compute(dev, dev->pio_mode, &timing, T, T)) + BUG(); + + t1 = timing.setup; + if (t1) + t1--; + t2 = timing.active; + if (t2) + t2--; + t2i = timing.act8b; + if (t2i) + t2i--; + + trh = ns_to_tim_reg(2, 20); + if (trh) + trh--; + + pause = timing.cycle - timing.active - timing.setup - trh; + if (pause) + pause--; + + octeon_cf_set_boot_reg_cfg(cs); + if (ocd->dma_engine >= 0) + /* True IDE mode, program both chip selects. */ + octeon_cf_set_boot_reg_cfg(cs + 1); + + + use_iordy = ata_pio_need_iordy(dev); + + reg_tim.u64 = cvmx_read_csr(CVMX_MIO_BOOT_REG_TIMX(cs)); + /* Disable page mode */ + reg_tim.s.pagem = 0; + /* Enable dynamic timing */ + reg_tim.s.waitm = use_iordy; + /* Pages are disabled */ + reg_tim.s.pages = 0; + /* We don't use multiplexed address mode */ + reg_tim.s.ale = 0; + /* Not used */ + reg_tim.s.page = 0; + /* Time after IORDY to coninue to assert the data */ + reg_tim.s.wait = 0; + /* Time to wait to complete the cycle. */ + reg_tim.s.pause = pause; + /* How long to hold after a write to de-assert CE. */ + reg_tim.s.wr_hld = trh; + /* How long to wait after a read to de-assert CE. */ + reg_tim.s.rd_hld = trh; + /* How long write enable is asserted */ + reg_tim.s.we = t2; + /* How long read enable is asserted */ + reg_tim.s.oe = t2; + /* Time after CE that read/write starts */ + reg_tim.s.ce = ns_to_tim_reg(2, 5); + /* Time before CE that address is valid */ + reg_tim.s.adr = 0; + + /* Program the bootbus region timing for the data port chip select. */ + cvmx_write_csr(CVMX_MIO_BOOT_REG_TIMX(cs), reg_tim.u64); + if (ocd->dma_engine >= 0) + /* True IDE mode, program both chip selects. */ + cvmx_write_csr(CVMX_MIO_BOOT_REG_TIMX(cs + 1), reg_tim.u64); +} + +static void octeon_cf_set_dmamode(struct ata_port *ap, struct ata_device *dev) +{ + struct octeon_cf_data *ocd = dev->link->ap->dev->platform_data; + union cvmx_mio_boot_dma_timx dma_tim; + unsigned int oe_a; + unsigned int oe_n; + unsigned int dma_ackh; + unsigned int dma_arq; + unsigned int pause; + unsigned int T0, Tkr, Td; + unsigned int tim_mult; + + const struct ata_timing *timing; + + timing = ata_timing_find_mode(dev->dma_mode); + T0 = timing->cycle; + Td = timing->active; + Tkr = timing->recover; + dma_ackh = timing->dmack_hold; + + dma_tim.u64 = 0; + /* dma_tim.s.tim_mult = 0 --> 4x */ + tim_mult = 4; + + /* not spec'ed, value in eclocks, not affected by tim_mult */ + dma_arq = 8; + pause = 25 - dma_arq * 1000 / + (octeon_get_clock_rate() / 1000000); /* Tz */ + + oe_a = Td; + /* Tkr from cf spec, lengthened to meet T0 */ + oe_n = max(T0 - oe_a, Tkr); + + dma_tim.s.dmack_pi = 1; + + dma_tim.s.oe_n = ns_to_tim_reg(tim_mult, oe_n); + dma_tim.s.oe_a = ns_to_tim_reg(tim_mult, oe_a); + + /* + * This is tI, C.F. spec. says 0, but Sony CF card requires + * more, we use 20 nS. + */ + dma_tim.s.dmack_s = ns_to_tim_reg(tim_mult, 20);; + dma_tim.s.dmack_h = ns_to_tim_reg(tim_mult, dma_ackh); + + dma_tim.s.dmarq = dma_arq; + dma_tim.s.pause = ns_to_tim_reg(tim_mult, pause); + + dma_tim.s.rd_dly = 0; /* Sample right on edge */ + + /* writes only */ + dma_tim.s.we_n = ns_to_tim_reg(tim_mult, oe_n); + dma_tim.s.we_a = ns_to_tim_reg(tim_mult, oe_a); + + pr_debug("ns to ticks (mult %d) of %d is: %d\n", tim_mult, 60, + ns_to_tim_reg(tim_mult, 60)); + pr_debug("oe_n: %d, oe_a: %d, dmack_s: %d, dmack_h: " + "%d, dmarq: %d, pause: %d\n", + dma_tim.s.oe_n, dma_tim.s.oe_a, dma_tim.s.dmack_s, + dma_tim.s.dmack_h, dma_tim.s.dmarq, dma_tim.s.pause); + + cvmx_write_csr(CVMX_MIO_BOOT_DMA_TIMX(ocd->dma_engine), + dma_tim.u64); + +} + +/** + * Handle an 8 bit I/O request. + * + * @dev: Device to access + * @buffer: Data buffer + * @buflen: Length of the buffer. + * @rw: True to write. + */ +static unsigned int octeon_cf_data_xfer8(struct ata_device *dev, + unsigned char *buffer, + unsigned int buflen, + int rw) +{ + struct ata_port *ap = dev->link->ap; + void __iomem *data_addr = ap->ioaddr.data_addr; + unsigned long words; + int count; + + words = buflen; + if (rw) { + count = 16; + while (words--) { + iowrite8(*buffer, data_addr); + buffer++; + /* + * Every 16 writes do a read so the bootbus + * FIFO doesn't fill up. + */ + if (--count == 0) { + ioread8(ap->ioaddr.altstatus_addr); + count = 16; + } + } + } else { + ioread8_rep(data_addr, buffer, words); + } + return buflen; +} + +/** + * Handle a 16 bit I/O request. + * + * @dev: Device to access + * @buffer: Data buffer + * @buflen: Length of the buffer. + * @rw: True to write. + */ +static unsigned int octeon_cf_data_xfer16(struct ata_device *dev, + unsigned char *buffer, + unsigned int buflen, + int rw) +{ + struct ata_port *ap = dev->link->ap; + void __iomem *data_addr = ap->ioaddr.data_addr; + unsigned long words; + int count; + + words = buflen / 2; + if (rw) { + count = 16; + while (words--) { + iowrite16(*(uint16_t *)buffer, data_addr); + buffer += sizeof(uint16_t); + /* + * Every 16 writes do a read so the bootbus + * FIFO doesn't fill up. + */ + if (--count == 0) { + ioread8(ap->ioaddr.altstatus_addr); + count = 16; + } + } + } else { + while (words--) { + *(uint16_t *)buffer = ioread16(data_addr); + buffer += sizeof(uint16_t); + } + } + /* Transfer trailing 1 byte, if any. */ + if (unlikely(buflen & 0x01)) { + __le16 align_buf[1] = { 0 }; + + if (rw == READ) { + align_buf[0] = cpu_to_le16(ioread16(data_addr)); + memcpy(buffer, align_buf, 1); + } else { + memcpy(align_buf, buffer, 1); + iowrite16(le16_to_cpu(align_buf[0]), data_addr); + } + words++; + } + return buflen; +} + +/** + * Read the taskfile for 16bit non-True IDE only. + */ +static void octeon_cf_tf_read16(struct ata_port *ap, struct ata_taskfile *tf) +{ + u16 blob; + /* The base of the registers is at ioaddr.data_addr. */ + void __iomem *base = ap->ioaddr.data_addr; + + blob = __raw_readw(base + 0xc); + tf->feature = blob >> 8; + + blob = __raw_readw(base + 2); + tf->nsect = blob & 0xff; + tf->lbal = blob >> 8; + + blob = __raw_readw(base + 4); + tf->lbam = blob & 0xff; + tf->lbah = blob >> 8; + + blob = __raw_readw(base + 6); + tf->device = blob & 0xff; + tf->command = blob >> 8; + + if (tf->flags & ATA_TFLAG_LBA48) { + if (likely(ap->ioaddr.ctl_addr)) { + iowrite8(tf->ctl | ATA_HOB, ap->ioaddr.ctl_addr); + + blob = __raw_readw(base + 0xc); + tf->hob_feature = blob >> 8; + + blob = __raw_readw(base + 2); + tf->hob_nsect = blob & 0xff; + tf->hob_lbal = blob >> 8; + + blob = __raw_readw(base + 4); + tf->hob_lbam = blob & 0xff; + tf->hob_lbah = blob >> 8; + + iowrite8(tf->ctl, ap->ioaddr.ctl_addr); + ap->last_ctl = tf->ctl; + } else { + WARN_ON(1); + } + } +} + +static u8 octeon_cf_check_status16(struct ata_port *ap) +{ + u16 blob; + void __iomem *base = ap->ioaddr.data_addr; + + blob = __raw_readw(base + 6); + return blob >> 8; +} + +static int octeon_cf_softreset16(struct ata_link *link, unsigned int *classes, + unsigned long deadline) +{ + struct ata_port *ap = link->ap; + void __iomem *base = ap->ioaddr.data_addr; + int rc; + u8 err; + + DPRINTK("about to softreset\n"); + __raw_writew(ap->ctl, base + 0xe); + udelay(20); + __raw_writew(ap->ctl | ATA_SRST, base + 0xe); + udelay(20); + __raw_writew(ap->ctl, base + 0xe); + + rc = ata_sff_wait_after_reset(link, 1, deadline); + if (rc) { + ata_link_printk(link, KERN_ERR, "SRST failed (errno=%d)\n", rc); + return rc; + } + + /* determine by signature whether we have ATA or ATAPI devices */ + classes[0] = ata_sff_dev_classify(&link->device[0], 1, &err); + DPRINTK("EXIT, classes[0]=%u [1]=%u\n", classes[0], classes[1]); + return 0; +} + +/** + * Load the taskfile for 16bit non-True IDE only. The device_addr is + * not loaded, we do this as part of octeon_cf_exec_command16. + */ +static void octeon_cf_tf_load16(struct ata_port *ap, + const struct ata_taskfile *tf) +{ + unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR; + /* The base of the registers is at ioaddr.data_addr. */ + void __iomem *base = ap->ioaddr.data_addr; + + if (tf->ctl != ap->last_ctl) { + iowrite8(tf->ctl, ap->ioaddr.ctl_addr); + ap->last_ctl = tf->ctl; + ata_wait_idle(ap); + } + if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) { + __raw_writew(tf->hob_feature << 8, base + 0xc); + __raw_writew(tf->hob_nsect | tf->hob_lbal << 8, base + 2); + __raw_writew(tf->hob_lbam | tf->hob_lbah << 8, base + 4); + VPRINTK("hob: feat 0x%X nsect 0x%X, lba 0x%X 0x%X 0x%X\n", + tf->hob_feature, + tf->hob_nsect, + tf->hob_lbal, + tf->hob_lbam, + tf->hob_lbah); + } + if (is_addr) { + __raw_writew(tf->feature << 8, base + 0xc); + __raw_writew(tf->nsect | tf->lbal << 8, base + 2); + __raw_writew(tf->lbam | tf->lbah << 8, base + 4); + VPRINTK("feat 0x%X nsect 0x%X, lba 0x%X 0x%X 0x%X\n", + tf->feature, + tf->nsect, + tf->lbal, + tf->lbam, + tf->lbah); + } + ata_wait_idle(ap); +} + + +static void octeon_cf_dev_select(struct ata_port *ap, unsigned int device) +{ +/* There is only one device, do nothing. */ + return; +} + +/* + * Issue ATA command to host controller. The device_addr is also sent + * as it must be written in a combined write with the command. + */ +static void octeon_cf_exec_command16(struct ata_port *ap, + const struct ata_taskfile *tf) +{ + /* The base of the registers is at ioaddr.data_addr. */ + void __iomem *base = ap->ioaddr.data_addr; + u16 blob; + + if (tf->flags & ATA_TFLAG_DEVICE) { + VPRINTK("device 0x%X\n", tf->device); + blob = tf->device; + } else { + blob = 0; + } + + DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command); + blob |= (tf->command << 8); + __raw_writew(blob, base + 6); + + + ata_wait_idle(ap); +} + +static u8 octeon_cf_irq_on(struct ata_port *ap) +{ + return 0; +} + +static void octeon_cf_irq_clear(struct ata_port *ap) +{ + return; +} + +static void octeon_cf_dma_setup(struct ata_queued_cmd *qc) +{ + struct ata_port *ap = qc->ap; + struct octeon_cf_port *cf_port; + + cf_port = (struct octeon_cf_port *)ap->private_data; + DPRINTK("ENTER\n"); + /* issue r/w command */ + qc->cursg = qc->sg; + cf_port->dma_finished = 0; + ap->ops->sff_exec_command(ap, &qc->tf); + DPRINTK("EXIT\n"); +} + +/** + * Start a DMA transfer that was already setup + * + * @qc: Information about the DMA + */ +static void octeon_cf_dma_start(struct ata_queued_cmd *qc) +{ + struct octeon_cf_data *ocd = qc->ap->dev->platform_data; + union cvmx_mio_boot_dma_cfgx mio_boot_dma_cfg; + union cvmx_mio_boot_dma_intx mio_boot_dma_int; + struct scatterlist *sg; + + VPRINTK("%d scatterlists\n", qc->n_elem); + + /* Get the scatter list entry we need to DMA into */ + sg = qc->cursg; + BUG_ON(!sg); + + /* + * Clear the DMA complete status. + */ + mio_boot_dma_int.u64 = 0; + mio_boot_dma_int.s.done = 1; + cvmx_write_csr(CVMX_MIO_BOOT_DMA_INTX(ocd->dma_engine), + mio_boot_dma_int.u64); + + /* Enable the interrupt. */ + cvmx_write_csr(CVMX_MIO_BOOT_DMA_INT_ENX(ocd->dma_engine), + mio_boot_dma_int.u64); + + /* Set the direction of the DMA */ + mio_boot_dma_cfg.u64 = 0; + mio_boot_dma_cfg.s.en = 1; + mio_boot_dma_cfg.s.rw = ((qc->tf.flags & ATA_TFLAG_WRITE) != 0); + + /* + * Don't stop the DMA if the device deasserts DMARQ. Many + * compact flashes deassert DMARQ for a short time between + * sectors. Instead of stopping and restarting the DMA, we'll + * let the hardware do it. If the DMA is really stopped early + * due to an error condition, a later timeout will force us to + * stop. + */ + mio_boot_dma_cfg.s.clr = 0; + + /* Size is specified in 16bit words and minus one notation */ + mio_boot_dma_cfg.s.size = sg_dma_len(sg) / 2 - 1; + + /* We need to swap the high and low bytes of every 16 bits */ + mio_boot_dma_cfg.s.swap8 = 1; + + mio_boot_dma_cfg.s.adr = sg_dma_address(sg); + + VPRINTK("%s %d bytes address=%p\n", + (mio_boot_dma_cfg.s.rw) ? "write" : "read", sg->length, + (void *)(unsigned long)mio_boot_dma_cfg.s.adr); + + cvmx_write_csr(CVMX_MIO_BOOT_DMA_CFGX(ocd->dma_engine), + mio_boot_dma_cfg.u64); +} + +/** + * + * LOCKING: + * spin_lock_irqsave(host lock) + * + */ +static unsigned int octeon_cf_dma_finished(struct ata_port *ap, + struct ata_queued_cmd *qc) +{ + struct ata_eh_info *ehi = &ap->link.eh_info; + struct octeon_cf_data *ocd = ap->dev->platform_data; + union cvmx_mio_boot_dma_cfgx dma_cfg; + union cvmx_mio_boot_dma_intx dma_int; + struct octeon_cf_port *cf_port; + u8 status; + + VPRINTK("ata%u: protocol %d task_state %d\n", + ap->print_id, qc->tf.protocol, ap->hsm_task_state); + + + if (ap->hsm_task_state != HSM_ST_LAST) + return 0; + + cf_port = (struct octeon_cf_port *)ap->private_data; + + dma_cfg.u64 = cvmx_read_csr(CVMX_MIO_BOOT_DMA_CFGX(ocd->dma_engine)); + if (dma_cfg.s.size != 0xfffff) { + /* Error, the transfer was not complete. */ + qc->err_mask |= AC_ERR_HOST_BUS; + ap->hsm_task_state = HSM_ST_ERR; + } + + /* Stop and clear the dma engine. */ + dma_cfg.u64 = 0; + dma_cfg.s.size = -1; + cvmx_write_csr(CVMX_MIO_BOOT_DMA_CFGX(ocd->dma_engine), dma_cfg.u64); + + /* Disable the interrupt. */ + dma_int.u64 = 0; + cvmx_write_csr(CVMX_MIO_BOOT_DMA_INT_ENX(ocd->dma_engine), dma_int.u64); + + /* Clear the DMA complete status */ + dma_int.s.done = 1; + cvmx_write_csr(CVMX_MIO_BOOT_DMA_INTX(ocd->dma_engine), dma_int.u64); + + status = ap->ops->sff_check_status(ap); + + ata_sff_hsm_move(ap, qc, status, 0); + + if (unlikely(qc->err_mask) && (qc->tf.protocol == ATA_PROT_DMA)) + ata_ehi_push_desc(ehi, "DMA stat 0x%x", status); + + return 1; +} + +/* + * Check if any queued commands have more DMAs, if so start the next + * transfer, else do end of transfer handling. + */ +static irqreturn_t octeon_cf_interrupt(int irq, void *dev_instance) +{ + struct ata_host *host = dev_instance; + struct octeon_cf_port *cf_port; + int i; + unsigned int handled = 0; + unsigned long flags; + + spin_lock_irqsave(&host->lock, flags); + + DPRINTK("ENTER\n"); + for (i = 0; i < host->n_ports; i++) { + u8 status; + struct ata_port *ap; + struct ata_queued_cmd *qc; + union cvmx_mio_boot_dma_intx dma_int; + union cvmx_mio_boot_dma_cfgx dma_cfg; + struct octeon_cf_data *ocd; + + ap = host->ports[i]; + ocd = ap->dev->platform_data; + if (!ap || (ap->flags & ATA_FLAG_DISABLED)) + continue; + + ocd = ap->dev->platform_data; + cf_port = (struct octeon_cf_port *)ap->private_data; + dma_int.u64 = + cvmx_read_csr(CVMX_MIO_BOOT_DMA_INTX(ocd->dma_engine)); + dma_cfg.u64 = + cvmx_read_csr(CVMX_MIO_BOOT_DMA_CFGX(ocd->dma_engine)); + + qc = ata_qc_from_tag(ap, ap->link.active_tag); + + if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)) && + (qc->flags & ATA_QCFLAG_ACTIVE)) { + if (dma_int.s.done && !dma_cfg.s.en) { + if (!sg_is_last(qc->cursg)) { + qc->cursg = sg_next(qc->cursg); + handled = 1; + octeon_cf_dma_start(qc); + continue; + } else { + cf_port->dma_finished = 1; + } + } + if (!cf_port->dma_finished) + continue; + status = ioread8(ap->ioaddr.altstatus_addr); + if (status & (ATA_BUSY | ATA_DRQ)) { + /* + * We are busy, try to handle it + * later. This is the DMA finished + * interrupt, and it could take a + * little while for the card to be + * ready for more commands. + */ + /* Clear DMA irq. */ + dma_int.u64 = 0; + dma_int.s.done = 1; + cvmx_write_csr(CVMX_MIO_BOOT_DMA_INTX(ocd->dma_engine), + dma_int.u64); + + queue_delayed_work(cf_port->wq, + &cf_port->delayed_finish, 1); + handled = 1; + } else { + handled |= octeon_cf_dma_finished(ap, qc); + } + } + } + spin_unlock_irqrestore(&host->lock, flags); + DPRINTK("EXIT\n"); + return IRQ_RETVAL(handled); +} + +static void octeon_cf_delayed_finish(struct work_struct *work) +{ + struct octeon_cf_port *cf_port = container_of(work, + struct octeon_cf_port, + delayed_finish.work); + struct ata_port *ap = cf_port->ap; + struct ata_host *host = ap->host; + struct ata_queued_cmd *qc; + unsigned long flags; + u8 status; + + spin_lock_irqsave(&host->lock, flags); + + /* + * If the port is not waiting for completion, it must have + * handled it previously. The hsm_task_state is + * protected by host->lock. + */ + if (ap->hsm_task_state != HSM_ST_LAST || !cf_port->dma_finished) + goto out; + + status = ioread8(ap->ioaddr.altstatus_addr); + if (status & (ATA_BUSY | ATA_DRQ)) { + /* Still busy, try again. */ + queue_delayed_work(cf_port->wq, + &cf_port->delayed_finish, 1); + goto out; + } + qc = ata_qc_from_tag(ap, ap->link.active_tag); + if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)) && + (qc->flags & ATA_QCFLAG_ACTIVE)) + octeon_cf_dma_finished(ap, qc); +out: + spin_unlock_irqrestore(&host->lock, flags); +} + +static void octeon_cf_dev_config(struct ata_device *dev) +{ + /* + * A maximum of 2^20 - 1 16 bit transfers are possible with + * the bootbus DMA. So we need to throttle max_sectors to + * (2^12 - 1 == 4095) to assure that this can never happen. + */ + dev->max_sectors = min(dev->max_sectors, 4095U); +} + +/* + * Trap if driver tries to do standard bmdma commands. They are not + * supported. + */ +static void unreachable_qc(struct ata_queued_cmd *qc) +{ + BUG(); +} + +static u8 unreachable_port(struct ata_port *ap) +{ + BUG(); +} + +/* + * We don't do ATAPI DMA so return 0. + */ +static int octeon_cf_check_atapi_dma(struct ata_queued_cmd *qc) +{ + return 0; +} + +static unsigned int octeon_cf_qc_issue(struct ata_queued_cmd *qc) +{ + struct ata_port *ap = qc->ap; + + switch (qc->tf.protocol) { + case ATA_PROT_DMA: + WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING); + + ap->ops->sff_tf_load(ap, &qc->tf); /* load tf registers */ + octeon_cf_dma_setup(qc); /* set up dma */ + octeon_cf_dma_start(qc); /* initiate dma */ + ap->hsm_task_state = HSM_ST_LAST; + break; + + case ATAPI_PROT_DMA: + dev_err(ap->dev, "Error, ATAPI not supported\n"); + BUG(); + + default: + return ata_sff_qc_issue(qc); + } + + return 0; +} + +static struct ata_port_operations octeon_cf_ops = { + .inherits = &ata_sff_port_ops, + .check_atapi_dma = octeon_cf_check_atapi_dma, + .qc_prep = ata_noop_qc_prep, + .qc_issue = octeon_cf_qc_issue, + .sff_dev_select = octeon_cf_dev_select, + .sff_irq_on = octeon_cf_irq_on, + .sff_irq_clear = octeon_cf_irq_clear, + .bmdma_setup = unreachable_qc, + .bmdma_start = unreachable_qc, + .bmdma_stop = unreachable_qc, + .bmdma_status = unreachable_port, + .cable_detect = ata_cable_40wire, + .set_piomode = octeon_cf_set_piomode, + .set_dmamode = octeon_cf_set_dmamode, + .dev_config = octeon_cf_dev_config, +}; + +static int __devinit octeon_cf_probe(struct platform_device *pdev) +{ + struct resource *res_cs0, *res_cs1; + + void __iomem *cs0; + void __iomem *cs1 = NULL; + struct ata_host *host; + struct ata_port *ap; + struct octeon_cf_data *ocd; + int irq = 0; + irq_handler_t irq_handler = NULL; + void __iomem *base; + struct octeon_cf_port *cf_port; + + res_cs0 = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + if (!res_cs0) + return -EINVAL; + + ocd = pdev->dev.platform_data; + + cs0 = devm_ioremap_nocache(&pdev->dev, res_cs0->start, + res_cs0->end - res_cs0->start + 1); + + if (!cs0) + return -ENOMEM; + + /* Determine from availability of DMA if True IDE mode or not */ + if (ocd->dma_engine >= 0) { + res_cs1 = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res_cs1) + return -EINVAL; + + cs1 = devm_ioremap_nocache(&pdev->dev, res_cs1->start, + res_cs0->end - res_cs1->start + 1); + + if (!cs1) + return -ENOMEM; + } + + cf_port = kzalloc(sizeof(*cf_port), GFP_KERNEL); + if (!cf_port) + return -ENOMEM; + + /* allocate host */ + host = ata_host_alloc(&pdev->dev, 1); + if (!host) + goto free_cf_port; + + ap = host->ports[0]; + ap->private_data = cf_port; + cf_port->ap = ap; + ap->ops = &octeon_cf_ops; + ap->pio_mask = 0x7f; /* Support PIO 0-6 */ + ap->flags |= ATA_FLAG_MMIO | ATA_FLAG_NO_LEGACY + | ATA_FLAG_NO_ATAPI | ATA_FLAG_PIO_POLLING; + + base = cs0 + ocd->base_region_bias; + if (!ocd->is16bit) { + ap->ioaddr.cmd_addr = base; + ata_sff_std_ports(&ap->ioaddr); + + ap->ioaddr.altstatus_addr = base + 0xe; + ap->ioaddr.ctl_addr = base + 0xe; + octeon_cf_ops.sff_data_xfer = octeon_cf_data_xfer8; + } else if (cs1) { + /* Presence of cs1 indicates True IDE mode. */ + ap->ioaddr.cmd_addr = base + (ATA_REG_CMD << 1) + 1; + ap->ioaddr.data_addr = base + (ATA_REG_DATA << 1); + ap->ioaddr.error_addr = base + (ATA_REG_ERR << 1) + 1; + ap->ioaddr.feature_addr = base + (ATA_REG_FEATURE << 1) + 1; + ap->ioaddr.nsect_addr = base + (ATA_REG_NSECT << 1) + 1; + ap->ioaddr.lbal_addr = base + (ATA_REG_LBAL << 1) + 1; + ap->ioaddr.lbam_addr = base + (ATA_REG_LBAM << 1) + 1; + ap->ioaddr.lbah_addr = base + (ATA_REG_LBAH << 1) + 1; + ap->ioaddr.device_addr = base + (ATA_REG_DEVICE << 1) + 1; + ap->ioaddr.status_addr = base + (ATA_REG_STATUS << 1) + 1; + ap->ioaddr.command_addr = base + (ATA_REG_CMD << 1) + 1; + ap->ioaddr.altstatus_addr = cs1 + (6 << 1) + 1; + ap->ioaddr.ctl_addr = cs1 + (6 << 1) + 1; + octeon_cf_ops.sff_data_xfer = octeon_cf_data_xfer16; + + ap->mwdma_mask = 0x1f; /* Support MWDMA 0-4 */ + irq = platform_get_irq(pdev, 0); + irq_handler = octeon_cf_interrupt; + + /* True IDE mode needs delayed work to poll for not-busy. */ + cf_port->wq = create_singlethread_workqueue(DRV_NAME); + if (!cf_port->wq) + goto free_cf_port; + INIT_DELAYED_WORK(&cf_port->delayed_finish, + octeon_cf_delayed_finish); + + } else { + /* 16 bit but not True IDE */ + octeon_cf_ops.sff_data_xfer = octeon_cf_data_xfer16; + octeon_cf_ops.softreset = octeon_cf_softreset16; + octeon_cf_ops.sff_check_status = octeon_cf_check_status16; + octeon_cf_ops.sff_tf_read = octeon_cf_tf_read16; + octeon_cf_ops.sff_tf_load = octeon_cf_tf_load16; + octeon_cf_ops.sff_exec_command = octeon_cf_exec_command16; + + ap->ioaddr.data_addr = base + ATA_REG_DATA; + ap->ioaddr.nsect_addr = base + ATA_REG_NSECT; + ap->ioaddr.lbal_addr = base + ATA_REG_LBAL; + ap->ioaddr.ctl_addr = base + 0xe; + ap->ioaddr.altstatus_addr = base + 0xe; + } + + ata_port_desc(ap, "cmd %p ctl %p", base, ap->ioaddr.ctl_addr); + + + dev_info(&pdev->dev, "version " DRV_VERSION" %d bit%s.\n", + (ocd->is16bit) ? 16 : 8, + (cs1) ? ", True IDE" : ""); + + + return ata_host_activate(host, irq, irq_handler, 0, &octeon_cf_sht); + +free_cf_port: + kfree(cf_port); + return -ENOMEM; +} + +static struct platform_driver octeon_cf_driver = { + .probe = octeon_cf_probe, + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + }, +}; + +static int __init octeon_cf_init(void) +{ + return platform_driver_register(&octeon_cf_driver); +} + + +MODULE_AUTHOR("David Daney <ddaney@caviumnetworks.com>"); +MODULE_DESCRIPTION("low-level driver for Cavium OCTEON Compact Flash PATA"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); +MODULE_ALIAS("platform:" DRV_NAME); + +module_init(octeon_cf_init); diff --git a/drivers/ata/pata_platform.c b/drivers/ata/pata_platform.c index 6afa07a37648..d8d743af3225 100644 --- a/drivers/ata/pata_platform.c +++ b/drivers/ata/pata_platform.c @@ -186,7 +186,7 @@ EXPORT_SYMBOL_GPL(__pata_platform_probe); * A platform bus ATA device has been unplugged. Perform the needed * cleanup. Also called on module unload for any active devices. */ -int __devexit __pata_platform_remove(struct device *dev) +int __pata_platform_remove(struct device *dev) { struct ata_host *host = dev_get_drvdata(dev); diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c index 83580a59db58..9e764e5747e6 100644 --- a/drivers/ata/pata_sil680.c +++ b/drivers/ata/pata_sil680.c @@ -32,7 +32,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_sil680" -#define DRV_VERSION "0.4.8" +#define DRV_VERSION "0.4.9" #define SIL680_MMIO_BAR 5 @@ -195,7 +195,7 @@ static struct scsi_host_template sil680_sht = { }; static struct ata_port_operations sil680_port_ops = { - .inherits = &ata_bmdma_port_ops, + .inherits = &ata_bmdma32_port_ops, .cable_detect = sil680_cable_detect, .set_piomode = sil680_set_piomode, .set_dmamode = sil680_set_dmamode, diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c index 1a56db92ff7a..55bc88c1707b 100644 --- a/drivers/ata/sata_fsl.c +++ b/drivers/ata/sata_fsl.c @@ -1288,7 +1288,7 @@ static const struct ata_port_info sata_fsl_port_info[] = { static int sata_fsl_probe(struct of_device *ofdev, const struct of_device_id *match) { - int retval = 0; + int retval = -ENXIO; void __iomem *hcr_base = NULL; void __iomem *ssr_base = NULL; void __iomem *csr_base = NULL; diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c index ccee930f1e12..2590c2279fa7 100644 --- a/drivers/ata/sata_sil24.c +++ b/drivers/ata/sata_sil24.c @@ -51,13 +51,6 @@ struct sil24_sge { __le32 flags; }; -/* - * Port multiplier - */ -struct sil24_port_multiplier { - __le32 diag; - __le32 sactive; -}; enum { SIL24_HOST_BAR = 0, diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index c18935f0bda2..5c62da9cd491 100644 --- a/drivers/ata/sata_via.c +++ b/drivers/ata/sata_via.c @@ -92,6 +92,8 @@ static const struct pci_device_id svia_pci_tbl[] = { { PCI_VDEVICE(VIA, 0x5372), vt6420 }, { PCI_VDEVICE(VIA, 0x7372), vt6420 }, { PCI_VDEVICE(VIA, 0x5287), vt8251 }, /* 2 sata chnls (Master/Slave) */ + { PCI_VDEVICE(VIA, 0x9000), vt8251 }, + { PCI_VDEVICE(VIA, 0x9040), vt8251 }, { } /* terminate list */ }; |