Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...

[linux-2.6-omap-h63xx.git] / drivers / pci / quirks.c

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f20d55368edb7edfb5d0a6bc9ef1a8746da6b8cb..92b9efe9bcaf628faa260c0e919eece0d2610e9f 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -23,6 +23,7 @@
 #include <linux/acpi.h>
 #include <linux/kallsyms.h>
 #include <linux/dmi.h>
+#include <linux/pci-aspm.h>
 #include "pci.h"
 
 int isa_dma_bridge_buggy;
@@ -1749,6 +1750,30 @@ static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
 }
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
 
+/*
+ * The 82575 and 82598 may experience data corruption issues when transitioning
+ * out of L0S.  To prevent this we need to disable L0S on the pci-e link
+ */
+static void __devinit quirk_disable_aspm_l0s(struct pci_dev *dev)
+{
+       dev_info(&dev->dev, "Disabling L0s\n");
+       pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
+
 static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
 {
        /* rev 1 ncr53c810 chips don't set the class at all which means
@@ -2097,7 +2122,7 @@ static void __devinit ht_disable_msi_mapping(struct pci_dev *dev)
 
                if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
                                         &flags) == 0) {
-                       dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
+                       dev_info(&dev->dev, "Disabling HT MSI Mapping\n");
 
                        pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
                                              flags & ~HT_MSI_FLAGS_ENABLE);
@@ -2141,6 +2166,10 @@ static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
        int pos;
        int found;
 
+       /* Enabling HT MSI mapping on this device breaks MCP51 */
+       if (dev->device == 0x270)
+               return;
+
        /* check if there is HT MSI cap or enabled on this device */
        found = ht_check_msi_mapping(dev);