Merge commit 'v2.6.32' into next

4 files changed, 85 insertions, 49 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index a06f5d6375a8..a3241a1a710b 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -2718,6 +2718,30 @@ static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
                         },
                         .driver_data = "20071026",      /* yyyymmdd */
                 },
+                /*
+                 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
+                 * support 64bit DMA.
+                 *
+                 * BIOS versions earlier than 1.5 had the Manufacturer DMI
+                 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
+                 * This spelling mistake was fixed in BIOS version 1.5, so
+                 * 1.5 and later have the Manufacturer as
+                 * "MICRO-STAR INTERNATIONAL CO.,LTD".
+                 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
+                 *
+                 * BIOS versions earlier than 1.9 had a Board Product Name
+                 * DMI field of "MS-7376". This was changed to be
+                 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
+                 * match on DMI_BOARD_NAME of "MS-7376".
+                 */
+                {
+                        .ident = "MSI K9A2 Platinum",
+                        .matches = {
+                                DMI_MATCH(DMI_BOARD_VENDOR,
+                                          "MICRO-STAR INTER"),
+                                DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
+                        },
+                },
                 { }
         };
         const struct dmi_system_id *match;
@@ -2729,18 +2753,24 @@ static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
             !match)
                 return false;
 
+        if (!match->driver_data)
+                goto enable_64bit;
+
         dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
         snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
 
-        if (strcmp(buf, match->driver_data) >= 0) {
-                dev_printk(KERN_WARNING, &pdev->dev, "%s: enabling 64bit DMA\n",
-                           match->ident);
-                return true;
-        } else {
+        if (strcmp(buf, match->driver_data) >= 0)
+                goto enable_64bit;
+        else {
                 dev_printk(KERN_WARNING, &pdev->dev, "%s: BIOS too old, "
                            "forcing 32bit DMA, update BIOS\n", match->ident);
                 return false;
         }
+
+enable_64bit:
+        dev_printk(KERN_WARNING, &pdev->dev, "%s: enabling 64bit DMA\n",
+                   match->ident);
+        return true;
 }
 
 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index d7f0f1b1ae3e..dc72690ed5db 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4919,10 +4919,11 @@ struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev)
  */
 void ata_qc_free(struct ata_queued_cmd *qc)
 {
-        struct ata_port *ap = qc->ap;
+        struct ata_port *ap;
         unsigned int tag;
 
         WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
+        ap = qc->ap;
 
         qc->flags = 0;
         tag = qc->tag;
@@ -4934,11 +4935,13 @@ void ata_qc_free(struct ata_queued_cmd *qc)
 
 void __ata_qc_complete(struct ata_queued_cmd *qc)
 {
-        struct ata_port *ap = qc->ap;
-        struct ata_link *link = qc->dev->link;
+        struct ata_port *ap;
+        struct ata_link *link;
 
         WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
         WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE));
+        ap = qc->ap;
+        link = qc->dev->link;
 
         if (likely(qc->flags & ATA_QCFLAG_DMAMAP))
                 ata_sg_clean(qc);
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index d344db42a002..172b57e6543f 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -707,34 +707,17 @@ static unsigned int sata_fsl_dev_classify(struct ata_port *ap)
         return ata_dev_classify(&tf);
 }
 
-static int sata_fsl_prereset(struct ata_link *link, unsigned long deadline)
-{
-        /* FIXME: Never skip softreset, sata_fsl_softreset() is
-         * combination of soft and hard resets.  sata_fsl_softreset()
-         * needs to be splitted into soft and hard resets.
-         */
-        return 0;
-}
-
-static int sata_fsl_softreset(struct ata_link *link, unsigned int *class,
+static int sata_fsl_hardreset(struct ata_link *link, unsigned int *class,
                                         unsigned long deadline)
 {
         struct ata_port *ap = link->ap;
-        struct sata_fsl_port_priv *pp = ap->private_data;
         struct sata_fsl_host_priv *host_priv = ap->host->private_data;
         void __iomem *hcr_base = host_priv->hcr_base;
-        int pmp = sata_srst_pmp(link);
         u32 temp;
-        struct ata_taskfile tf;
-        u8 *cfis;
-        u32 Serror;
         int i = 0;
         unsigned long start_jiffies;
 
-        DPRINTK("in xx_softreset\n");
-
-        if (pmp != SATA_PMP_CTRL_PORT)
-                goto issue_srst;
+        DPRINTK("in xx_hardreset\n");
 
 try_offline_again:
         /*
@@ -749,7 +732,7 @@ try_offline_again:
 
         if (temp & ONLINE) {
                 ata_port_printk(ap, KERN_ERR,
-                                "Softreset failed, not off-lined %d\n", i);
+                                "Hardreset failed, not off-lined %d\n", i);
 
                 /*
                  * Try to offline controller atleast twice
@@ -761,7 +744,7 @@ try_offline_again:
                         goto try_offline_again;
         }
 
-        DPRINTK("softreset, controller off-lined\n");
+        DPRINTK("hardreset, controller off-lined\n");
         VPRINTK("HStatus = 0x%x\n", ioread32(hcr_base + HSTATUS));
         VPRINTK("HControl = 0x%x\n", ioread32(hcr_base + HCONTROL));
 
@@ -786,11 +769,11 @@ try_offline_again:
 
         if (!(temp & ONLINE)) {
                 ata_port_printk(ap, KERN_ERR,
-                                "Softreset failed, not on-lined\n");
+                                "Hardreset failed, not on-lined\n");
                 goto err;
         }
 
-        DPRINTK("softreset, controller off-lined & on-lined\n");
+        DPRINTK("hardreset, controller off-lined & on-lined\n");
         VPRINTK("HStatus = 0x%x\n", ioread32(hcr_base + HSTATUS));
         VPRINTK("HControl = 0x%x\n", ioread32(hcr_base + HCONTROL));
 
@@ -806,7 +789,7 @@ try_offline_again:
                                 "No Device OR PHYRDY change,Hstatus = 0x%x\n",
                                 ioread32(hcr_base + HSTATUS));
                 *class = ATA_DEV_NONE;
-                goto out;
+                return 0;
         }
 
         /*
@@ -819,11 +802,44 @@ try_offline_again:
         if ((temp & 0xFF) != 0x18) {
                 ata_port_printk(ap, KERN_WARNING, "No Signature Update\n");
                 *class = ATA_DEV_NONE;
-                goto out;
+                goto do_followup_srst;
         } else {
                 ata_port_printk(ap, KERN_INFO,
                                 "Signature Update detected @ %d msecs\n",
                                 jiffies_to_msecs(jiffies - start_jiffies));
+                *class = sata_fsl_dev_classify(ap);
+                return 0;
+        }
+
+do_followup_srst:
+        /*
+         * request libATA to perform follow-up softreset
+         */
+        return -EAGAIN;
+
+err:
+        return -EIO;
+}
+
+static int sata_fsl_softreset(struct ata_link *link, unsigned int *class,
+                                        unsigned long deadline)
+{
+        struct ata_port *ap = link->ap;
+        struct sata_fsl_port_priv *pp = ap->private_data;
+        struct sata_fsl_host_priv *host_priv = ap->host->private_data;
+        void __iomem *hcr_base = host_priv->hcr_base;
+        int pmp = sata_srst_pmp(link);
+        u32 temp;
+        struct ata_taskfile tf;
+        u8 *cfis;
+        u32 Serror;
+
+        DPRINTK("in xx_softreset\n");
+
+        if (ata_link_offline(link)) {
+                DPRINTK("PHY reports no device\n");
+                *class = ATA_DEV_NONE;
+                return 0;
         }
 
         /*
@@ -834,7 +850,6 @@ try_offline_again:
          * reached here, we can send a command to the target device
          */
 
-issue_srst:
         DPRINTK("Sending SRST/device reset\n");
 
         ata_tf_init(link->device, &tf);
@@ -860,6 +875,8 @@ issue_srst:
                 ioread32(CA + hcr_base), ioread32(CC + hcr_base));
 
         iowrite32(0xFFFF, CC + hcr_base);
+        if (pmp != SATA_PMP_CTRL_PORT)
+                iowrite32(pmp, CQPMP + hcr_base);
         iowrite32(1, CQ + hcr_base);
 
         temp = ata_wait_register(CQ + hcr_base, 0x1, 0x1, 1, 5000);
@@ -926,7 +943,6 @@ issue_srst:
                 VPRINTK("cereg = 0x%x\n", ioread32(hcr_base + CE));
         }
 
-out:
         return 0;
 
 err:
@@ -988,18 +1004,6 @@ static void sata_fsl_error_intr(struct ata_port *ap)
                 ehi->err_mask |= AC_ERR_ATA_BUS;
                 ehi->action |= ATA_EH_SOFTRESET;
 
-                /*
-                 * Ignore serror in case of fatal errors as we always want
-                 * to do a soft-reset of the FSL SATA controller. Analyzing
-                 * serror may cause libata to schedule a hard-reset action,
-                 * and hard-reset currently does not do controller
-                 * offline/online, causing command timeouts and leads to an
-                 * un-recoverable state, hence make libATA ignore
-                 * autopsy in case of fatal errors.
-                 */
-
-                ehi->flags |= ATA_EHI_NO_AUTOPSY;
-
                 freeze = 1;
         }
 
@@ -1267,8 +1271,8 @@ static struct ata_port_operations sata_fsl_ops = {
 
         .freeze = sata_fsl_freeze,
         .thaw = sata_fsl_thaw,
-        .prereset = sata_fsl_prereset,
         .softreset = sata_fsl_softreset,
+        .hardreset = sata_fsl_hardreset,
         .pmp_softreset = sata_fsl_softreset,
         .error_handler = sata_fsl_error_handler,
         .post_internal_cmd = sata_fsl_post_internal_cmd,
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index bdd43c7f432e..02efd9a83d26 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -93,7 +93,6 @@ static const struct pci_device_id svia_pci_tbl[] = {
         { 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 */
 };