clockevent: sun4i: Fix race condition in the probe code

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / ata / ahci.c

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index c81d809..e662f14 100644 (file)
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -61,6 +61,7 @@ enum board_ids {
        /* board IDs by feature in alphabetical order */
        board_ahci,
        board_ahci_ign_iferr,
+       board_ahci_nomsi,
        board_ahci_noncq,
        board_ahci_nosntf,
        board_ahci_yes_fbs,
@@ -122,6 +123,13 @@ static const struct ata_port_info ahci_port_info[] = {
                .udma_mask      = ATA_UDMA6,
                .port_ops       = &ahci_ops,
        },
+       [board_ahci_nomsi] = {
+               AHCI_HFLAGS     (AHCI_HFLAG_NO_MSI),
+               .flags          = AHCI_FLAG_COMMON,
+               .pio_mask       = ATA_PIO4,
+               .udma_mask      = ATA_UDMA6,
+               .port_ops       = &ahci_ops,
+       },
        [board_ahci_noncq] = {
                AHCI_HFLAGS     (AHCI_HFLAG_NO_NCQ),
                .flags          = AHCI_FLAG_COMMON,
@@ -306,6 +314,19 @@ static const struct pci_device_id ahci_pci_tbl[] = {
        { PCI_VDEVICE(INTEL, 0x9c85), board_ahci }, /* Wildcat Point-LP RAID */
        { PCI_VDEVICE(INTEL, 0x9c87), board_ahci }, /* Wildcat Point-LP RAID */
        { PCI_VDEVICE(INTEL, 0x9c8f), board_ahci }, /* Wildcat Point-LP RAID */
+       { PCI_VDEVICE(INTEL, 0x8c82), board_ahci }, /* 9 Series AHCI */
+       { PCI_VDEVICE(INTEL, 0x8c83), board_ahci }, /* 9 Series AHCI */
+       { PCI_VDEVICE(INTEL, 0x8c84), board_ahci }, /* 9 Series RAID */
+       { PCI_VDEVICE(INTEL, 0x8c85), board_ahci }, /* 9 Series RAID */
+       { PCI_VDEVICE(INTEL, 0x8c86), board_ahci }, /* 9 Series RAID */
+       { PCI_VDEVICE(INTEL, 0x8c87), board_ahci }, /* 9 Series RAID */
+       { PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
+       { PCI_VDEVICE(INTEL, 0x8c8f), board_ahci }, /* 9 Series RAID */
+       { PCI_VDEVICE(INTEL, 0xa103), board_ahci }, /* Sunrise Point-H AHCI */
+       { PCI_VDEVICE(INTEL, 0xa103), board_ahci }, /* Sunrise Point-H RAID */
+       { PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
+       { PCI_VDEVICE(INTEL, 0xa107), board_ahci }, /* Sunrise Point-H RAID */
+       { PCI_VDEVICE(INTEL, 0xa10f), board_ahci }, /* Sunrise Point-H RAID */
 
        /* JMicron 360/1/3/5/6, match class to avoid IDE function */
        { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
@@ -443,16 +464,23 @@ static const struct pci_device_id ahci_pci_tbl[] = {
        { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a),
          .driver_data = board_ahci_yes_fbs },                  /* 88se9172 */
        { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172),
+         .driver_data = board_ahci_yes_fbs },                  /* 88se9182 */
+       { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9182),
          .driver_data = board_ahci_yes_fbs },                  /* 88se9172 */
        { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192),
          .driver_data = board_ahci_yes_fbs },                  /* 88se9172 on some Gigabyte */
+       { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0),
+         .driver_data = board_ahci_yes_fbs },
        { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
          .driver_data = board_ahci_yes_fbs },
        { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
          .driver_data = board_ahci_yes_fbs },
+       { PCI_DEVICE(PCI_VENDOR_ID_TTI, 0x0642),
+         .driver_data = board_ahci_yes_fbs },
 
        /* Promise */
        { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },   /* PDC42819 */
+       { PCI_VDEVICE(PROMISE, 0x3781), board_ahci },   /* FastTrak TX8660 ahci-mode */
 
        /* Asmedia */
        { PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci },   /* ASM1060 */
@@ -461,10 +489,10 @@ static const struct pci_device_id ahci_pci_tbl[] = {
        { PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },   /* ASM1062 */
 
        /*
-        * Samsung SSDs found on some macbooks.  NCQ times out.
-        * https://bugzilla.kernel.org/show_bug.cgi?id=60731
+        * Samsung SSDs found on some macbooks.  NCQ times out if MSI is
+        * enabled.  https://bugzilla.kernel.org/show_bug.cgi?id=60731
         */
-       { PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_noncq },
+       { PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
 
        /* Enmotus */
        { PCI_DEVICE(0x1c44, 0x8000), board_ahci },
@@ -1163,7 +1191,7 @@ static inline void ahci_gtf_filter_workaround(struct ata_host *host)
 #endif
 
 static int ahci_init_interrupts(struct pci_dev *pdev, unsigned int n_ports,
-                        struct ahci_host_priv *hpriv)
+                               struct ahci_host_priv *hpriv)
 {
        int rc, nvec;
 
@@ -1189,6 +1217,13 @@ static int ahci_init_interrupts(struct pci_dev *pdev, unsigned int n_ports,
        else if (rc > 0)
                goto single_msi;
 
+       /* fallback to single MSI mode if the controller enforced MRSM mode */
+       if (readl(hpriv->mmio + HOST_CTL) & HOST_MRSM) {
+               pci_disable_msi(pdev);
+               printk(KERN_INFO "ahci: MRSM is on, fallback to single MSI\n");
+               goto single_msi;
+       }
+
        return nvec;
 
 single_msi:
@@ -1233,18 +1268,18 @@ int ahci_host_activate(struct ata_host *host, int irq, unsigned int n_msis)
                return rc;
 
        for (i = 0; i < host->n_ports; i++) {
-               const char* desc;
                struct ahci_port_priv *pp = host->ports[i]->private_data;
 
-               /* pp is NULL for dummy ports */
-               if (pp)
-                       desc = pp->irq_desc;
-               else
-                       desc = dev_driver_string(host->dev);
+               /* Do not receive interrupts sent by dummy ports */
+               if (!pp) {
+                       disable_irq(irq + i);
+                       continue;
+               }
 
-               rc = devm_request_threaded_irq(host->dev,
-                       irq + i, ahci_hw_interrupt, ahci_thread_fn, IRQF_SHARED,
-                       desc, host->ports[i]);
+               rc = devm_request_threaded_irq(host->dev, irq + i,
+                                              ahci_hw_interrupt,
+                                              ahci_thread_fn, IRQF_SHARED,
+                                              pp->irq_desc, host->ports[i]);
                if (rc)
                        goto out_free_irqs;
        }