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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
[cascardo/linux.git] / drivers / pci / quirks.c
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 53a786f..bd80f63 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -533,6 +533,17 @@ static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,  PCI_DEVICE_ID_INTEL_82371AB_3,  quirk_piix4_acpi);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,  PCI_DEVICE_ID_INTEL_82443MX_3,  quirk_piix4_acpi);
 
+#define ICH_PMBASE     0x40
+#define ICH_ACPI_CNTL  0x44
+#define  ICH4_ACPI_EN  0x10
+#define  ICH6_ACPI_EN  0x80
+#define ICH4_GPIOBASE  0x58
+#define ICH4_GPIO_CNTL 0x5c
+#define  ICH4_GPIO_EN  0x10
+#define ICH6_GPIOBASE  0x48
+#define ICH6_GPIO_CNTL 0x4c
+#define  ICH6_GPIO_EN  0x10
+
 /*
  * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
  *     0x40 (128 bytes of ACPI, GPIO & TCO registers)
@@ -541,12 +552,33 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,     PCI_DEVICE_ID_INTEL_82443MX_3,  qui
 static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
 {
        u32 region;
+       u8 enable;
 
-       pci_read_config_dword(dev, 0x40, &region);
-       quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO");
+       /*
+        * The check for PCIBIOS_MIN_IO is to ensure we won't create a conflict
+        * with low legacy (and fixed) ports. We don't know the decoding
+        * priority and can't tell whether the legacy device or the one created
+        * here is really at that address.  This happens on boards with broken
+        * BIOSes.
+       */
+
+       pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
+       if (enable & ICH4_ACPI_EN) {
+               pci_read_config_dword(dev, ICH_PMBASE, &region);
+               region &= PCI_BASE_ADDRESS_IO_MASK;
+               if (region >= PCIBIOS_MIN_IO)
+                       quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES,
+                                       "ICH4 ACPI/GPIO/TCO");
+       }
 
-       pci_read_config_dword(dev, 0x58, &region);
-       quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO");
+       pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable);
+       if (enable & ICH4_GPIO_EN) {
+               pci_read_config_dword(dev, ICH4_GPIOBASE, &region);
+               region &= PCI_BASE_ADDRESS_IO_MASK;
+               if (region >= PCIBIOS_MIN_IO)
+                       quirk_io_region(dev, region, 64,
+                                       PCI_BRIDGE_RESOURCES + 1, "ICH4 GPIO");
+       }
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_82801AA_0,                quirk_ich4_lpc_acpi);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_82801AB_0,                quirk_ich4_lpc_acpi);
@@ -562,12 +594,25 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_ESB_1,               qui
 static void __devinit ich6_lpc_acpi_gpio(struct pci_dev *dev)
 {
        u32 region;
+       u8 enable;
 
-       pci_read_config_dword(dev, 0x40, &region);
-       quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH6 ACPI/GPIO/TCO");
+       pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
+       if (enable & ICH6_ACPI_EN) {
+               pci_read_config_dword(dev, ICH_PMBASE, &region);
+               region &= PCI_BASE_ADDRESS_IO_MASK;
+               if (region >= PCIBIOS_MIN_IO)
+                       quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES,
+                                       "ICH6 ACPI/GPIO/TCO");
+       }
 
-       pci_read_config_dword(dev, 0x48, &region);
-       quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO");
+       pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable);
+       if (enable & ICH4_GPIO_EN) {
+               pci_read_config_dword(dev, ICH6_GPIOBASE, &region);
+               region &= PCI_BASE_ADDRESS_IO_MASK;
+               if (region >= PCIBIOS_MIN_IO)
+                       quirk_io_region(dev, region, 64,
+                                       PCI_BRIDGE_RESOURCES + 1, "ICH6 GPIO");
+       }
 }
 
 static void __devinit ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize)
@@ -2618,58 +2663,6 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
 
 #endif /* CONFIG_PCI_MSI */
 
-#ifdef CONFIG_PCI_IOV
-
-/*
- * For Intel 82576 SR-IOV NIC, if BIOS doesn't allocate resources for the
- * SR-IOV BARs, zero the Flash BAR and program the SR-IOV BARs to use the
- * old Flash Memory Space.
- */
-static void __devinit quirk_i82576_sriov(struct pci_dev *dev)
-{
-       int pos, flags;
-       u32 bar, start, size;
-
-       if (PAGE_SIZE > 0x10000)
-               return;
-
-       flags = pci_resource_flags(dev, 0);
-       if ((flags & PCI_BASE_ADDRESS_SPACE) !=
-                       PCI_BASE_ADDRESS_SPACE_MEMORY ||
-           (flags & PCI_BASE_ADDRESS_MEM_TYPE_MASK) !=
-                       PCI_BASE_ADDRESS_MEM_TYPE_32)
-               return;
-
-       pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV);
-       if (!pos)
-               return;
-
-       pci_read_config_dword(dev, pos + PCI_SRIOV_BAR, &bar);
-       if (bar & PCI_BASE_ADDRESS_MEM_MASK)
-               return;
-
-       start = pci_resource_start(dev, 1);
-       size = pci_resource_len(dev, 1);
-       if (!start || size != 0x400000 || start & (size - 1))
-               return;
-
-       pci_resource_flags(dev, 1) = 0;
-       pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, 0);
-       pci_write_config_dword(dev, pos + PCI_SRIOV_BAR, start);
-       pci_write_config_dword(dev, pos + PCI_SRIOV_BAR + 12, start + size / 2);
-
-       dev_info(&dev->dev, "use Flash Memory Space for SR-IOV BARs\n");
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x10c9, quirk_i82576_sriov);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x10e6, quirk_i82576_sriov);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x10e7, quirk_i82576_sriov);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x10e8, quirk_i82576_sriov);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x150a, quirk_i82576_sriov);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x150d, quirk_i82576_sriov);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1518, quirk_i82576_sriov);
-
-#endif /* CONFIG_PCI_IOV */
-
 /* Allow manual resource allocation for PCI hotplug bridges
  * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For
  * some PCI-PCI hotplug bridges, like PLX 6254 (former HINT HB6),
Unnamed repository; edit this file 'description' to name the repository.