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Diffstat (limited to 'drivers/ata/ata_piix.c')
-rw-r--r--drivers/ata/ata_piix.c461
1 files changed, 228 insertions, 233 deletions
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index ef773e12af79..174eca609b42 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -164,28 +164,6 @@ struct piix_host_priv {
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);
-static void ich_set_dmamode(struct ata_port *ap, struct ata_device *adev);
-static int ich_pata_cable_detect(struct ata_port *ap);
-static u8 piix_vmw_bmdma_status(struct ata_port *ap);
-static int piix_sidpr_scr_read(struct ata_link *link,
- unsigned int reg, u32 *val);
-static int piix_sidpr_scr_write(struct ata_link *link,
- unsigned int reg, u32 val);
-static int piix_sidpr_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
- unsigned hints);
-static bool piix_irq_check(struct ata_port *ap);
-static int piix_port_start(struct ata_port *ap);
-#ifdef CONFIG_PM
-static int piix_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
-static int piix_pci_device_resume(struct pci_dev *pdev);
-#endif
-
static unsigned int in_module_init = 1;
static const struct pci_device_id piix_pci_tbl[] = {
@@ -342,64 +320,6 @@ static const struct pci_device_id piix_pci_tbl[] = {
{ } /* terminate list */
};
-static struct pci_driver piix_pci_driver = {
- .name = DRV_NAME,
- .id_table = piix_pci_tbl,
- .probe = piix_init_one,
- .remove = piix_remove_one,
-#ifdef CONFIG_PM
- .suspend = piix_pci_device_suspend,
- .resume = piix_pci_device_resume,
-#endif
-};
-
-static struct scsi_host_template piix_sht = {
- ATA_BMDMA_SHT(DRV_NAME),
-};
-
-static struct ata_port_operations piix_sata_ops = {
- .inherits = &ata_bmdma32_port_ops,
- .sff_irq_check = piix_irq_check,
- .port_start = piix_port_start,
-};
-
-static struct ata_port_operations piix_pata_ops = {
- .inherits = &piix_sata_ops,
- .cable_detect = ata_cable_40wire,
- .set_piomode = piix_set_piomode,
- .set_dmamode = piix_set_dmamode,
- .prereset = piix_pata_prereset,
-};
-
-static struct ata_port_operations piix_vmw_ops = {
- .inherits = &piix_pata_ops,
- .bmdma_status = piix_vmw_bmdma_status,
-};
-
-static struct ata_port_operations ich_pata_ops = {
- .inherits = &piix_pata_ops,
- .cable_detect = ich_pata_cable_detect,
- .set_dmamode = ich_set_dmamode,
-};
-
-static struct device_attribute *piix_sidpr_shost_attrs[] = {
- &dev_attr_link_power_management_policy,
- NULL
-};
-
-static struct scsi_host_template piix_sidpr_sht = {
- ATA_BMDMA_SHT(DRV_NAME),
- .shost_attrs = piix_sidpr_shost_attrs,
-};
-
-static struct ata_port_operations piix_sidpr_sata_ops = {
- .inherits = &piix_sata_ops,
- .hardreset = sata_std_hardreset,
- .scr_read = piix_sidpr_scr_read,
- .scr_write = piix_sidpr_scr_write,
- .set_lpm = piix_sidpr_set_lpm,
-};
-
static const struct piix_map_db ich5_map_db = {
.mask = 0x7,
.port_enable = 0x3,
@@ -504,147 +424,6 @@ static const struct piix_map_db *piix_map_db_table[] = {
[ich8_sata_snb] = &ich8_map_db,
};
-static struct ata_port_info piix_port_info[] = {
- [piix_pata_mwdma] = /* PIIX3 MWDMA only */
- {
- .flags = PIIX_PATA_FLAGS,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA12_ONLY, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
- .port_ops = &piix_pata_ops,
- },
-
- [piix_pata_33] = /* PIIX4 at 33MHz */
- {
- .flags = PIIX_PATA_FLAGS,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA12_ONLY, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
- .udma_mask = ATA_UDMA2,
- .port_ops = &piix_pata_ops,
- },
-
- [ich_pata_33] = /* ICH0 - ICH at 33Mhz*/
- {
- .flags = PIIX_PATA_FLAGS,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA12_ONLY, /* Check: maybe MWDMA0 is ok */
- .udma_mask = ATA_UDMA2,
- .port_ops = &ich_pata_ops,
- },
-
- [ich_pata_66] = /* ICH controllers up to 66MHz */
- {
- .flags = PIIX_PATA_FLAGS,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA12_ONLY, /* MWDMA0 is broken on chip */
- .udma_mask = ATA_UDMA4,
- .port_ops = &ich_pata_ops,
- },
-
- [ich_pata_100] =
- {
- .flags = PIIX_PATA_FLAGS | PIIX_FLAG_CHECKINTR,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA12_ONLY,
- .udma_mask = ATA_UDMA5,
- .port_ops = &ich_pata_ops,
- },
-
- [ich_pata_100_nomwdma1] =
- {
- .flags = PIIX_PATA_FLAGS | PIIX_FLAG_CHECKINTR,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA2_ONLY,
- .udma_mask = ATA_UDMA5,
- .port_ops = &ich_pata_ops,
- },
-
- [ich5_sata] =
- {
- .flags = PIIX_SATA_FLAGS,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA2,
- .udma_mask = ATA_UDMA6,
- .port_ops = &piix_sata_ops,
- },
-
- [ich6_sata] =
- {
- .flags = PIIX_SATA_FLAGS,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA2,
- .udma_mask = ATA_UDMA6,
- .port_ops = &piix_sata_ops,
- },
-
- [ich6m_sata] =
- {
- .flags = PIIX_SATA_FLAGS,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA2,
- .udma_mask = ATA_UDMA6,
- .port_ops = &piix_sata_ops,
- },
-
- [ich8_sata] =
- {
- .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA2,
- .udma_mask = ATA_UDMA6,
- .port_ops = &piix_sata_ops,
- },
-
- [ich8_2port_sata] =
- {
- .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA2,
- .udma_mask = ATA_UDMA6,
- .port_ops = &piix_sata_ops,
- },
-
- [tolapai_sata] =
- {
- .flags = PIIX_SATA_FLAGS,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA2,
- .udma_mask = ATA_UDMA6,
- .port_ops = &piix_sata_ops,
- },
-
- [ich8m_apple_sata] =
- {
- .flags = PIIX_SATA_FLAGS,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA2,
- .udma_mask = ATA_UDMA6,
- .port_ops = &piix_sata_ops,
- },
-
- [piix_pata_vmw] =
- {
- .flags = PIIX_PATA_FLAGS,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA12_ONLY, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
- .udma_mask = ATA_UDMA2,
- .port_ops = &piix_vmw_ops,
- },
-
- /*
- * some Sandybridge chipsets have broken 32 mode up to now,
- * see https://bugzilla.kernel.org/show_bug.cgi?id=40592
- */
- [ich8_sata_snb] =
- {
- .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR | PIIX_FLAG_PIO16,
- .pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA2,
- .udma_mask = ATA_UDMA6,
- .port_ops = &piix_sata_ops,
- },
-
-};
-
static struct pci_bits piix_enable_bits[] = {
{ 0x41U, 1U, 0x80UL, 0x80UL }, /* port 0 */
{ 0x43U, 1U, 0x80UL, 0x80UL }, /* port 1 */
@@ -1261,6 +1040,193 @@ static u8 piix_vmw_bmdma_status(struct ata_port *ap)
return ata_bmdma_status(ap) & ~ATA_DMA_ERR;
}
+static struct scsi_host_template piix_sht = {
+ ATA_BMDMA_SHT(DRV_NAME),
+};
+
+static struct ata_port_operations piix_sata_ops = {
+ .inherits = &ata_bmdma32_port_ops,
+ .sff_irq_check = piix_irq_check,
+ .port_start = piix_port_start,
+};
+
+static struct ata_port_operations piix_pata_ops = {
+ .inherits = &piix_sata_ops,
+ .cable_detect = ata_cable_40wire,
+ .set_piomode = piix_set_piomode,
+ .set_dmamode = piix_set_dmamode,
+ .prereset = piix_pata_prereset,
+};
+
+static struct ata_port_operations piix_vmw_ops = {
+ .inherits = &piix_pata_ops,
+ .bmdma_status = piix_vmw_bmdma_status,
+};
+
+static struct ata_port_operations ich_pata_ops = {
+ .inherits = &piix_pata_ops,
+ .cable_detect = ich_pata_cable_detect,
+ .set_dmamode = ich_set_dmamode,
+};
+
+static struct device_attribute *piix_sidpr_shost_attrs[] = {
+ &dev_attr_link_power_management_policy,
+ NULL
+};
+
+static struct scsi_host_template piix_sidpr_sht = {
+ ATA_BMDMA_SHT(DRV_NAME),
+ .shost_attrs = piix_sidpr_shost_attrs,
+};
+
+static struct ata_port_operations piix_sidpr_sata_ops = {
+ .inherits = &piix_sata_ops,
+ .hardreset = sata_std_hardreset,
+ .scr_read = piix_sidpr_scr_read,
+ .scr_write = piix_sidpr_scr_write,
+ .set_lpm = piix_sidpr_set_lpm,
+};
+
+static struct ata_port_info piix_port_info[] = {
+ [piix_pata_mwdma] = /* PIIX3 MWDMA only */
+ {
+ .flags = PIIX_PATA_FLAGS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA12_ONLY, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
+ .port_ops = &piix_pata_ops,
+ },
+
+ [piix_pata_33] = /* PIIX4 at 33MHz */
+ {
+ .flags = PIIX_PATA_FLAGS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA12_ONLY, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
+ .udma_mask = ATA_UDMA2,
+ .port_ops = &piix_pata_ops,
+ },
+
+ [ich_pata_33] = /* ICH0 - ICH at 33Mhz*/
+ {
+ .flags = PIIX_PATA_FLAGS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA12_ONLY, /* Check: maybe MWDMA0 is ok */
+ .udma_mask = ATA_UDMA2,
+ .port_ops = &ich_pata_ops,
+ },
+
+ [ich_pata_66] = /* ICH controllers up to 66MHz */
+ {
+ .flags = PIIX_PATA_FLAGS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA12_ONLY, /* MWDMA0 is broken on chip */
+ .udma_mask = ATA_UDMA4,
+ .port_ops = &ich_pata_ops,
+ },
+
+ [ich_pata_100] =
+ {
+ .flags = PIIX_PATA_FLAGS | PIIX_FLAG_CHECKINTR,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA12_ONLY,
+ .udma_mask = ATA_UDMA5,
+ .port_ops = &ich_pata_ops,
+ },
+
+ [ich_pata_100_nomwdma1] =
+ {
+ .flags = PIIX_PATA_FLAGS | PIIX_FLAG_CHECKINTR,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2_ONLY,
+ .udma_mask = ATA_UDMA5,
+ .port_ops = &ich_pata_ops,
+ },
+
+ [ich5_sata] =
+ {
+ .flags = PIIX_SATA_FLAGS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &piix_sata_ops,
+ },
+
+ [ich6_sata] =
+ {
+ .flags = PIIX_SATA_FLAGS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &piix_sata_ops,
+ },
+
+ [ich6m_sata] =
+ {
+ .flags = PIIX_SATA_FLAGS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &piix_sata_ops,
+ },
+
+ [ich8_sata] =
+ {
+ .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &piix_sata_ops,
+ },
+
+ [ich8_2port_sata] =
+ {
+ .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &piix_sata_ops,
+ },
+
+ [tolapai_sata] =
+ {
+ .flags = PIIX_SATA_FLAGS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &piix_sata_ops,
+ },
+
+ [ich8m_apple_sata] =
+ {
+ .flags = PIIX_SATA_FLAGS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &piix_sata_ops,
+ },
+
+ [piix_pata_vmw] =
+ {
+ .flags = PIIX_PATA_FLAGS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA12_ONLY, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
+ .udma_mask = ATA_UDMA2,
+ .port_ops = &piix_vmw_ops,
+ },
+
+ /*
+ * some Sandybridge chipsets have broken 32 mode up to now,
+ * see https://bugzilla.kernel.org/show_bug.cgi?id=40592
+ */
+ [ich8_sata_snb] =
+ {
+ .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR | PIIX_FLAG_PIO16,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &piix_sata_ops,
+ },
+};
+
#define AHCI_PCI_BAR 5
#define AHCI_GLOBAL_CTL 0x04
#define AHCI_ENABLE (1 << 31)
@@ -1304,7 +1270,7 @@ static int piix_disable_ahci(struct pci_dev *pdev)
* they are found return an error code so we can turn off DMA
*/
-static int __devinit piix_check_450nx_errata(struct pci_dev *ata_dev)
+static int piix_check_450nx_errata(struct pci_dev *ata_dev)
{
struct pci_dev *pdev = NULL;
u16 cfg;
@@ -1330,8 +1296,8 @@ static int __devinit piix_check_450nx_errata(struct pci_dev *ata_dev)
return no_piix_dma;
}
-static void __devinit piix_init_pcs(struct ata_host *host,
- const struct piix_map_db *map_db)
+static void piix_init_pcs(struct ata_host *host,
+ const struct piix_map_db *map_db)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
u16 pcs, new_pcs;
@@ -1347,9 +1313,9 @@ static void __devinit piix_init_pcs(struct ata_host *host,
}
}
-static const int *__devinit piix_init_sata_map(struct pci_dev *pdev,
- struct ata_port_info *pinfo,
- const struct piix_map_db *map_db)
+static const int *piix_init_sata_map(struct pci_dev *pdev,
+ struct ata_port_info *pinfo,
+ const struct piix_map_db *map_db)
{
const int *map;
int i, invalid_map = 0;
@@ -1426,7 +1392,7 @@ static bool piix_no_sidpr(struct ata_host *host)
return false;
}
-static int __devinit piix_init_sidpr(struct ata_host *host)
+static int piix_init_sidpr(struct ata_host *host)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
struct piix_host_priv *hpriv = host->private_data;
@@ -1585,12 +1551,31 @@ static void piix_ignore_devices_quirk(struct ata_host *host)
},
{ } /* terminate list */
};
- const struct dmi_system_id *dmi = dmi_first_match(ignore_hyperv);
+ static const struct dmi_system_id allow_virtual_pc[] = {
+ {
+ /* In MS Virtual PC guests the DMI ident is nearly
+ * identical to a Hyper-V guest. One difference is the
+ * product version which is used here to identify
+ * a Virtual PC guest. This entry allows ata_piix to
+ * drive the emulated hardware.
+ */
+ .ident = "MS Virtual PC 2007",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR,
+ "Microsoft Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "VS2005R2"),
+ },
+ },
+ { } /* terminate list */
+ };
+ const struct dmi_system_id *ignore = dmi_first_match(ignore_hyperv);
+ const struct dmi_system_id *allow = dmi_first_match(allow_virtual_pc);
- if (dmi && prefer_ms_hyperv) {
+ if (ignore && !allow && prefer_ms_hyperv) {
host->flags |= ATA_HOST_IGNORE_ATA;
dev_info(host->dev, "%s detected, ATA device ignore set\n",
- dmi->ident);
+ ignore->ident);
}
#endif
}
@@ -1610,8 +1595,7 @@ static void piix_ignore_devices_quirk(struct ata_host *host)
* Zero on success, or -ERRNO value.
*/
-static int __devinit piix_init_one(struct pci_dev *pdev,
- const struct pci_device_id *ent)
+static int piix_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct device *dev = &pdev->dev;
struct ata_port_info port_info[2];
@@ -1727,6 +1711,17 @@ static void piix_remove_one(struct pci_dev *pdev)
ata_pci_remove_one(pdev);
}
+static struct pci_driver piix_pci_driver = {
+ .name = DRV_NAME,
+ .id_table = piix_pci_tbl,
+ .probe = piix_init_one,
+ .remove = piix_remove_one,
+#ifdef CONFIG_PM
+ .suspend = piix_pci_device_suspend,
+ .resume = piix_pci_device_resume,
+#endif
+};
+
static int __init piix_init(void)
{
int rc;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 14:06:19 +0100