target/linux/generic/pending-3.18/810-pci_disable_common_quirks.patch

   1 --- a/drivers/pci/Kconfig
   2 +++ b/drivers/pci/Kconfig
   3 @@ -58,6 +58,12 @@ config XEN_PCIDEV_FRONTEND
   4            The PCI device frontend driver allows the kernel to import arbitrary
   5            PCI devices from a PCI backend to support PCI driver domains.
   6
   7 +config PCI_DISABLE_COMMON_QUIRKS
   8 +       bool "PCI disable common quirks"
   9 +       depends on PCI
  10 +       help
  11 +         If you don't know what to do here, say N.
  12 +
  13  config HT_IRQ
  14         bool "Interrupts on hypertransport devices"
  15         default y
  16 --- a/drivers/pci/quirks.c
  17 +++ b/drivers/pci/quirks.c
  18 @@ -41,6 +41,7 @@ static void quirk_mmio_always_on(struct
  19  DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_ANY_ID, PCI_ANY_ID,
  20                                 PCI_CLASS_BRIDGE_HOST, 8, quirk_mmio_always_on);
  21
  22 +#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS
  23  /* The Mellanox Tavor device gives false positive parity errors
  24   * Mark this device with a broken_parity_status, to allow
  25   * PCI scanning code to "skip" this now blacklisted device.
  26 @@ -2929,6 +2930,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_I
  27  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata);
  28  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata);
  29
  30 +#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */
  31
  32  /*
  33   * Ivytown NTB BAR sizes are misreported by the hardware due to an erratum.  To
  34 @@ -2985,6 +2987,8 @@ static void fixup_debug_report(struct pc
  35         }
  36  }
  37
  38 +#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS
  39 +
  40  /*
  41   * Some BIOS implementations leave the Intel GPU interrupts enabled,
  42   * even though no one is handling them (f.e. i915 driver is never loaded).
  43 @@ -3019,6 +3023,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_IN
  44  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
  45  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0152, disable_igfx_irq);
  46
  47 +#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */
  48 +
  49  /*
  50   * PCI devices which are on Intel chips can skip the 10ms delay
  51   * before entering D3 mode.