Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-2.6] / drivers / pci / quirks.c

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index e9a333d985526c5a5af22c1e6cc79c3e2dccad10..338a3f94b4d43bdf3d44dd0548e018199a49774a 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -951,6 +951,12 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,      PCI_DEVICE_ID_INTEL_82375,      quirk_e
  * accesses to the SMBus registers, with potentially bad effects. Thus you
  * should be very careful when adding new entries: if SMM is accessing the
  * Intel SMBus, this is a very good reason to leave it hidden.
+ *
+ * Likewise, many recent laptops use ACPI for thermal management. If the
+ * ACPI DSDT code accesses the SMBus, then Linux should not access it
+ * natively, and keeping the SMBus hidden is the right thing to do. If you
+ * are about to add an entry in the table below, please first disassemble
+ * the DSDT and double-check that there is no code accessing the SMBus.
  */
 static int asus_hides_smbus;
 
@@ -1028,11 +1034,6 @@ static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
                        case 0x12bf: /* HP xw4100 */
                                asus_hides_smbus = 1;
                        }
-               else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
-                       switch (dev->subsystem_device) {
-                       case 0x099c: /* HP Compaq nx6110 */
-                               asus_hides_smbus = 1;
-                       }
        } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
                if (dev->device ==  PCI_DEVICE_ID_INTEL_82855PM_HB)
                        switch(dev->subsystem_device) {
@@ -1501,9 +1502,8 @@ static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_f
                if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
                    (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
 #ifdef DEBUG
-                       dev_dbg(&dev->dev, "calling quirk 0x%p", f->hook);
-                       print_fn_descriptor_symbol(": %s()\n",
-                               (unsigned long) f->hook);
+                       dev_dbg(&dev->dev, "calling ");
+                       print_fn_descriptor_symbol("%s\n", f->hook);
 #endif
                        f->hook(dev);
                }
@@ -1647,18 +1647,71 @@ static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
                        /* Turn off PCI Bus Parking */
                        pci_write_config_byte(dev, 0x76, b ^ 0x40);
 
+                       dev_info(&dev->dev,
+                               "Disabling VIA CX700 PCI parking\n");
+               }
+       }
+
+       if (pci_read_config_byte(dev, 0x72, &b) == 0) {
+               if (b != 0) {
                        /* Turn off PCI Master read caching */
                        pci_write_config_byte(dev, 0x72, 0x0);
+
+                       /* Set PCI Master Bus time-out to "1x16 PCLK" */
                        pci_write_config_byte(dev, 0x75, 0x1);
+
+                       /* Disable "Read FIFO Timer" */
                        pci_write_config_byte(dev, 0x77, 0x0);
 
                        dev_info(&dev->dev,
-                               "Disabling VIA CX700 PCI parking/caching\n");
+                               "Disabling VIA CX700 PCI caching\n");
                }
        }
 }
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
 
+/*
+ * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
+ * VPD end tag will hang the device.  This problem was initially
+ * observed when a vpd entry was created in sysfs
+ * ('/sys/bus/pci/devices/<id>/vpd').   A read to this sysfs entry
+ * will dump 32k of data.  Reading a full 32k will cause an access
+ * beyond the VPD end tag causing the device to hang.  Once the device
+ * is hung, the bnx2 driver will not be able to reset the device.
+ * We believe that it is legal to read beyond the end tag and
+ * therefore the solution is to limit the read/write length.
+ */
+static void __devinit quirk_brcm_570x_limit_vpd(struct pci_dev *dev)
+{
+       /*  Only disable the VPD capability for 5706, 5708, and 5709 rev. A */
+       if ((dev->device == PCI_DEVICE_ID_NX2_5706) ||
+           (dev->device == PCI_DEVICE_ID_NX2_5708) ||
+           ((dev->device == PCI_DEVICE_ID_NX2_5709) &&
+            (dev->revision & 0xf0) == 0x0)) {
+               if (dev->vpd)
+                       dev->vpd->len = 0x80;
+       }
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
+                        PCI_DEVICE_ID_NX2_5706,
+                        quirk_brcm_570x_limit_vpd);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
+                        PCI_DEVICE_ID_NX2_5706S,
+                        quirk_brcm_570x_limit_vpd);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
+                        PCI_DEVICE_ID_NX2_5708,
+                        quirk_brcm_570x_limit_vpd);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
+                        PCI_DEVICE_ID_NX2_5708S,
+                        quirk_brcm_570x_limit_vpd);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
+                        PCI_DEVICE_ID_NX2_5709,
+                        quirk_brcm_570x_limit_vpd);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM,
+                        PCI_DEVICE_ID_NX2_5709S,
+                        quirk_brcm_570x_limit_vpd);
+
 #ifdef CONFIG_PCI_MSI
 /* Some chipsets do not support MSI. We cannot easily rely on setting
  * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
@@ -1674,6 +1727,7 @@ static void __init quirk_disable_all_msi(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
 
 /* Disable MSI on chipsets that are known to not support it */
@@ -1814,6 +1868,7 @@ static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
        }
 }
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk);
 
 static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
 {