61 lines
2.1 KiB
Diff
61 lines
2.1 KiB
Diff
From: Gabor Juhos <juhosg@openwrt.org>
|
|
Subject: debloat: add kernel config option to disabling common PCI quirks
|
|
|
|
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
|
|
---
|
|
drivers/pci/Kconfig | 6 ++++++
|
|
drivers/pci/quirks.c | 6 ++++++
|
|
2 files changed, 12 insertions(+)
|
|
|
|
--- a/drivers/pci/Kconfig
|
|
+++ b/drivers/pci/Kconfig
|
|
@@ -71,6 +71,12 @@ config XEN_PCIDEV_FRONTEND
|
|
The PCI device frontend driver allows the kernel to import arbitrary
|
|
PCI devices from a PCI backend to support PCI driver domains.
|
|
|
|
+config PCI_DISABLE_COMMON_QUIRKS
|
|
+ bool "PCI disable common quirks"
|
|
+ depends on PCI
|
|
+ help
|
|
+ If you don't know what to do here, say N.
|
|
+
|
|
config HT_IRQ
|
|
bool "Interrupts on hypertransport devices"
|
|
default y
|
|
--- a/drivers/pci/quirks.c
|
|
+++ b/drivers/pci/quirks.c
|
|
@@ -43,6 +43,7 @@ static void quirk_mmio_always_on(struct
|
|
DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_ANY_ID, PCI_ANY_ID,
|
|
PCI_CLASS_BRIDGE_HOST, 8, quirk_mmio_always_on);
|
|
|
|
+#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS
|
|
/* The Mellanox Tavor device gives false positive parity errors
|
|
* Mark this device with a broken_parity_status, to allow
|
|
* PCI scanning code to "skip" this now blacklisted device.
|
|
@@ -3094,6 +3095,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_I
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata);
|
|
|
|
+#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */
|
|
|
|
/*
|
|
* Ivytown NTB BAR sizes are misreported by the hardware due to an erratum. To
|
|
@@ -3150,6 +3152,8 @@ static void fixup_debug_report(struct pc
|
|
}
|
|
}
|
|
|
|
+#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS
|
|
+
|
|
/*
|
|
* Some BIOS implementations leave the Intel GPU interrupts enabled,
|
|
* even though no one is handling them (f.e. i915 driver is never loaded).
|
|
@@ -3188,6 +3192,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_IN
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0152, disable_igfx_irq);
|
|
|
|
+#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */
|
|
+
|
|
/*
|
|
* PCI devices which are on Intel chips can skip the 10ms delay
|
|
* before entering D3 mode.
|