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gerrit-public.fairphone.software / kernel / msm / 2debb4d2019fa05a0896f1591dea0e0dc21bc046 / . / drivers / pci / quirks.c
blob: e915a17b36c3870c5b36cfcb42360f08521bfeb1 [file] [log] [blame]
/*
* This file contains work-arounds for many known PCI hardware
* bugs. Devices present only on certain architectures (host
* bridges et cetera) should be handled in arch-specific code.
*
* Note: any quirks for hotpluggable devices must _NOT_ be declared __init.
*
* Copyright (c) 1999 Martin Mares <mj@ucw.cz>
*
* Init/reset quirks for USB host controllers should be in the
* USB quirks file, where their drivers can access reuse it.
*
* The bridge optimization stuff has been removed. If you really
* have a silly BIOS which is unable to set your host bridge right,
* use the PowerTweak utility (see http://powertweak.sourceforge.net).
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/acpi.h>
#include <linux/kallsyms.h>
#include <linux/dmi.h>
#include "pci.h"
int isa_dma_bridge_buggy;
EXPORT_SYMBOL(isa_dma_bridge_buggy);
int pci_pci_problems;
EXPORT_SYMBOL(pci_pci_problems);
int pcie_mch_quirk;
EXPORT_SYMBOL(pcie_mch_quirk);
#ifdef CONFIG_PCI_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.
*/
static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
{
dev->broken_parity_status = 1; /* This device gives false positives */
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
/* Deal with broken BIOS'es that neglect to enable passive release,
which can cause problems in combination with the 82441FX/PPro MTRRs */
static void quirk_passive_release(struct pci_dev *dev)
{
struct pci_dev *d = NULL;
unsigned char dlc;
/* We have to make sure a particular bit is set in the PIIX3
ISA bridge, so we have to go out and find it. */
while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
pci_read_config_byte(d, 0x82, &dlc);
if (!(dlc & 1<<1)) {
dev_err(&d->dev, "PIIX3: Enabling Passive Release\n");
dlc |= 1<<1;
pci_write_config_byte(d, 0x82, dlc);
}
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
/* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
but VIA don't answer queries. If you happen to have good contacts at VIA
ask them for me please -- Alan
This appears to be BIOS not version dependent. So presumably there is a
chipset level fix */
static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
{
if (!isa_dma_bridge_buggy) {
isa_dma_bridge_buggy=1;
dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n");
}
}
/*
* Its not totally clear which chipsets are the problematic ones
* We know 82C586 and 82C596 variants are affected.
*/
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs);
/*
* Chipsets where PCI->PCI transfers vanish or hang
*/
static void __devinit quirk_nopcipci(struct pci_dev *dev)
{
if ((pci_pci_problems & PCIPCI_FAIL)==0) {
dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n");
pci_pci_problems |= PCIPCI_FAIL;
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci);
static void __devinit quirk_nopciamd(struct pci_dev *dev)
{
u8 rev;
pci_read_config_byte(dev, 0x08, &rev);
if (rev == 0x13) {
/* Erratum 24 */
dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n");
pci_pci_problems |= PCIAGP_FAIL;
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
/*
* Triton requires workarounds to be used by the drivers
*/
static void __devinit quirk_triton(struct pci_dev *dev)
{
if ((pci_pci_problems&PCIPCI_TRITON)==0) {
dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
pci_pci_problems |= PCIPCI_TRITON;
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton);
/*
* VIA Apollo KT133 needs PCI latency patch
* Made according to a windows driver based patch by George E. Breese
* see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
* Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
* the info on which Mr Breese based his work.
*
* Updated based on further information from the site and also on
* information provided by VIA
*/
static void quirk_vialatency(struct pci_dev *dev)
{
struct pci_dev *p;
u8 busarb;
/* Ok we have a potential problem chipset here. Now see if we have
a buggy southbridge */
p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
if (p!=NULL) {
/* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
/* Check for buggy part revisions */
if (p->revision < 0x40 || p->revision > 0x42)
goto exit;
} else {
p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
if (p==NULL) /* No problem parts */
goto exit;
/* Check for buggy part revisions */
if (p->revision < 0x10 || p->revision > 0x12)
goto exit;
}
/*
* Ok we have the problem. Now set the PCI master grant to
* occur every master grant. The apparent bug is that under high
* PCI load (quite common in Linux of course) you can get data
* loss when the CPU is held off the bus for 3 bus master requests
* This happens to include the IDE controllers....
*
* VIA only apply this fix when an SB Live! is present but under
* both Linux and Windows this isnt enough, and we have seen
* corruption without SB Live! but with things like 3 UDMA IDE
* controllers. So we ignore that bit of the VIA recommendation..
*/
pci_read_config_byte(dev, 0x76, &busarb);
/* Set bit 4 and bi 5 of byte 76 to 0x01
"Master priority rotation on every PCI master grant */
busarb &= ~(1<<5);
busarb |= (1<<4);
pci_write_config_byte(dev, 0x76, busarb);
dev_info(&dev->dev, "Applying VIA southbridge workaround\n");
exit:
pci_dev_put(p);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
/* Must restore this on a resume from RAM */
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
/*
* VIA Apollo VP3 needs ETBF on BT848/878
*/
static void __devinit quirk_viaetbf(struct pci_dev *dev)
{
if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
pci_pci_problems |= PCIPCI_VIAETBF;
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf);
static void __devinit quirk_vsfx(struct pci_dev *dev)
{
if ((pci_pci_problems&PCIPCI_VSFX)==0) {
dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
pci_pci_problems |= PCIPCI_VSFX;
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx);
/*
* Ali Magik requires workarounds to be used by the drivers
* that DMA to AGP space. Latency must be set to 0xA and triton
* workaround applied too
* [Info kindly provided by ALi]
*/
static void __init quirk_alimagik(struct pci_dev *dev)
{
if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik);
/*
* Natoma has some interesting boundary conditions with Zoran stuff
* at least
*/
static void __devinit quirk_natoma(struct pci_dev *dev)
{
if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
pci_pci_problems |= PCIPCI_NATOMA;
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma);
/*
* This chip can cause PCI parity errors if config register 0xA0 is read
* while DMAs are occurring.
*/
static void __devinit quirk_citrine(struct pci_dev *dev)
{
dev->cfg_size = 0xA0;
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine);
/*
* S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
* If it's needed, re-allocate the region.
*/
static void __devinit quirk_s3_64M(struct pci_dev *dev)
{
struct resource *r = &dev->resource[0];
if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
r->start = 0;
r->end = 0x3ffffff;
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M);
static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
unsigned size, int nr, const char *name)
{
region &= ~(size-1);
if (region) {
struct pci_bus_region bus_region;
struct resource *res = dev->resource + nr;
res->name = pci_name(dev);
res->start = region;
res->end = region + size - 1;
res->flags = IORESOURCE_IO;
/* Convert from PCI bus to resource space. */
bus_region.start = res->start;
bus_region.end = res->end;
pcibios_bus_to_resource(dev, res, &bus_region);
pci_claim_resource(dev, nr);
dev_info(&dev->dev, "quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
}
}
/*
* ATI Northbridge setups MCE the processor if you even
* read somewhere between 0x3b0->0x3bb or read 0x3d3
*/
static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
{
dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
/* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
request_region(0x3b0, 0x0C, "RadeonIGP");
request_region(0x3d3, 0x01, "RadeonIGP");
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce);
/*
* Let's make the southbridge information explicit instead
* of having to worry about people probing the ACPI areas,
* for example.. (Yes, it happens, and if you read the wrong
* ACPI register it will put the machine to sleep with no
* way of waking it up again. Bummer).
*
* ALI M7101: Two IO regions pointed to by words at
* 0xE0 (64 bytes of ACPI registers)
* 0xE2 (32 bytes of SMB registers)
*/
static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
{
u16 region;
pci_read_config_word(dev, 0xE0, &region);
quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
pci_read_config_word(dev, 0xE2, &region);
quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi);
static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
{
u32 devres;
u32 mask, size, base;
pci_read_config_dword(dev, port, &devres);
if ((devres & enable) != enable)
return;
mask = (devres >> 16) & 15;
base = devres & 0xffff;
size = 16;
for (;;) {
unsigned bit = size >> 1;
if ((bit & mask) == bit)
break;
size = bit;
}
/*
* For now we only print it out. Eventually we'll want to
* reserve it (at least if it's in the 0x1000+ range), but
* let's get enough confirmation reports first.
*/
base &= -size;
dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
}
static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
{
u32 devres;
u32 mask, size, base;
pci_read_config_dword(dev, port, &devres);
if ((devres & enable) != enable)
return;
base = devres & 0xffff0000;
mask = (devres & 0x3f) << 16;
size = 128 << 16;
for (;;) {
unsigned bit = size >> 1;
if ((bit & mask) == bit)
break;
size = bit;
}
/*
* For now we only print it out. Eventually we'll want to
* reserve it, but let's get enough confirmation reports first.
*/
base &= -size;
dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
}
/*
* PIIX4 ACPI: Two IO regions pointed to by longwords at
* 0x40 (64 bytes of ACPI registers)
* 0x90 (16 bytes of SMB registers)
* and a few strange programmable PIIX4 device resources.
*/
static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
{
u32 region, res_a;
pci_read_config_dword(dev, 0x40, &region);
quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
pci_read_config_dword(dev, 0x90, &region);
quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
/* Device resource A has enables for some of the other ones */
pci_read_config_dword(dev, 0x5c, &res_a);
piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
/* Device resource D is just bitfields for static resources */
/* Device 12 enabled? */
if (res_a & (1 << 29)) {
piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
}
/* Device 13 enabled? */
if (res_a & (1 << 30)) {
piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
}
piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
}
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);
/*
* ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
* 0x40 (128 bytes of ACPI, GPIO & TCO registers)
* 0x58 (64 bytes of GPIO I/O space)
*/
static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
{
u32 region;
pci_read_config_dword(dev, 0x40, &region);
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");
}
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);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev)
{
u32 region;
pci_read_config_dword(dev, 0x40, &region);
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");
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich6_lpc_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich6_lpc_acpi);
/*
* VIA ACPI: One IO region pointed to by longword at
* 0x48 or 0x20 (256 bytes of ACPI registers)
*/
static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
{
u32 region;
if (dev->revision & 0x10) {
pci_read_config_dword(dev, 0x48, &region);
region &= PCI_BASE_ADDRESS_IO_MASK;
quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi);
/*
* VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
* 0x48 (256 bytes of ACPI registers)
* 0x70 (128 bytes of hardware monitoring register)
* 0x90 (16 bytes of SMB registers)
*/
static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
{
u16 hm;
u32 smb;
quirk_vt82c586_acpi(dev);
pci_read_config_word(dev, 0x70, &hm);
hm &= PCI_BASE_ADDRESS_IO_MASK;
quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
pci_read_config_dword(dev, 0x90, &smb);
smb &= PCI_BASE_ADDRESS_IO_MASK;
quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi);
/*
* VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
* 0x88 (128 bytes of power management registers)
* 0xd0 (16 bytes of SMB registers)
*/
static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
{
u16 pm, smb;
pci_read_config_word(dev, 0x88, &pm);
pm &= PCI_BASE_ADDRESS_IO_MASK;
quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
pci_read_config_word(dev, 0xd0, &smb);
smb &= PCI_BASE_ADDRESS_IO_MASK;
quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
#ifdef CONFIG_X86_IO_APIC
#include <asm/io_apic.h>
/*
* VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
* devices to the external APIC.
*
* TODO: When we have device-specific interrupt routers,
* this code will go away from quirks.
*/
static void quirk_via_ioapic(struct pci_dev *dev)
{
u8 tmp;
if (nr_ioapics < 1)
tmp = 0; /* nothing routed to external APIC */
else
tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
dev_info(&dev->dev, "%sbling VIA external APIC routing\n",
tmp == 0 ? "Disa" : "Ena");
/* Offset 0x58: External APIC IRQ output control */
pci_write_config_byte (dev, 0x58, tmp);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
/*
* VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
* This leads to doubled level interrupt rates.
* Set this bit to get rid of cycle wastage.
* Otherwise uncritical.
*/
static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
{
u8 misc_control2;
#define BYPASS_APIC_DEASSERT 8
pci_read_config_byte(dev, 0x5B, &misc_control2);
if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
/*
* The AMD io apic can hang the box when an apic irq is masked.
* We check all revs >= B0 (yet not in the pre production!) as the bug
* is currently marked NoFix
*
* We have multiple reports of hangs with this chipset that went away with
* noapic specified. For the moment we assume it's the erratum. We may be wrong
* of course. However the advice is demonstrably good even if so..
*/
static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
{
if (dev->revision >= 0x02) {
dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
dev_warn(&dev->dev, " : booting with the \"noapic\" option\n");
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
static void __init quirk_ioapic_rmw(struct pci_dev *dev)
{
if (dev->devfn == 0 && dev->bus->number == 0)
sis_apic_bug = 1;
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw);
#endif /* CONFIG_X86_IO_APIC */
/*
* Some settings of MMRBC can lead to data corruption so block changes.
* See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
*/
static void __init quirk_amd_8131_mmrbc(struct pci_dev *dev)
{
if (dev->subordinate && dev->revision <= 0x12) {
dev_info(&dev->dev, "AMD8131 rev %x detected; "
"disabling PCI-X MMRBC\n", dev->revision);
dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
/*
* FIXME: it is questionable that quirk_via_acpi
* is needed. It shows up as an ISA bridge, and does not
* support the PCI_INTERRUPT_LINE register at all. Therefore
* it seems like setting the pci_dev's 'irq' to the
* value of the ACPI SCI interrupt is only done for convenience.
* -jgarzik
*/
static void __devinit quirk_via_acpi(struct pci_dev *d)
{
/*
* VIA ACPI device: SCI IRQ line in PCI config byte 0x42
*/
u8 irq;
pci_read_config_byte(d, 0x42, &irq);
irq &= 0xf;
if (irq && (irq != 2))
d->irq = irq;
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi);
/*
* VIA bridges which have VLink
*/
static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
static void quirk_via_bridge(struct pci_dev *dev)
{
/* See what bridge we have and find the device ranges */
switch (dev->device) {
case PCI_DEVICE_ID_VIA_82C686:
/* The VT82C686 is special, it attaches to PCI and can have
any device number. All its subdevices are functions of
that single device. */
via_vlink_dev_lo = PCI_SLOT(dev->devfn);
via_vlink_dev_hi = PCI_SLOT(dev->devfn);
break;
case PCI_DEVICE_ID_VIA_8237:
case PCI_DEVICE_ID_VIA_8237A:
via_vlink_dev_lo = 15;
break;
case PCI_DEVICE_ID_VIA_8235:
via_vlink_dev_lo = 16;
break;
case PCI_DEVICE_ID_VIA_8231:
case PCI_DEVICE_ID_VIA_8233_0:
case PCI_DEVICE_ID_VIA_8233A:
case PCI_DEVICE_ID_VIA_8233C_0:
via_vlink_dev_lo = 17;
break;
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
/**
* quirk_via_vlink - VIA VLink IRQ number update
* @dev: PCI device
*
* If the device we are dealing with is on a PIC IRQ we need to
* ensure that the IRQ line register which usually is not relevant
* for PCI cards, is actually written so that interrupts get sent
* to the right place.
* We only do this on systems where a VIA south bridge was detected,
* and only for VIA devices on the motherboard (see quirk_via_bridge
* above).
*/
static void quirk_via_vlink(struct pci_dev *dev)
{
u8 irq, new_irq;
/* Check if we have VLink at all */
if (via_vlink_dev_lo == -1)
return;
new_irq = dev->irq;
/* Don't quirk interrupts outside the legacy IRQ range */
if (!new_irq || new_irq > 15)
return;
/* Internal device ? */
if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
return;
/* This is an internal VLink device on a PIC interrupt. The BIOS
ought to have set this but may not have, so we redo it */
pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
if (new_irq != irq) {
dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n",
irq, new_irq);
udelay(15); /* unknown if delay really needed */
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
}
}
DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
/*
* VIA VT82C598 has its device ID settable and many BIOSes
* set it to the ID of VT82C597 for backward compatibility.
* We need to switch it off to be able to recognize the real
* type of the chip.
*/
static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
{
pci_write_config_byte(dev, 0xfc, 0);
pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id);
/*
* CardBus controllers have a legacy base address that enables them
* to respond as i82365 pcmcia controllers. We don't want them to
* do this even if the Linux CardBus driver is not loaded, because
* the Linux i82365 driver does not (and should not) handle CardBus.
*/
static void quirk_cardbus_legacy(struct pci_dev *dev)
{
if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
return;
pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
}
DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
/*
* Following the PCI ordering rules is optional on the AMD762. I'm not
* sure what the designers were smoking but let's not inhale...
*
* To be fair to AMD, it follows the spec by default, its BIOS people
* who turn it off!
*/
static void quirk_amd_ordering(struct pci_dev *dev)
{
u32 pcic;
pci_read_config_dword(dev, 0x4C, &pcic);
if ((pcic&6)!=6) {
pcic |= 6;
dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n");
pci_write_config_dword(dev, 0x4C, pcic);
pci_read_config_dword(dev, 0x84, &pcic);
pcic |= (1<<23); /* Required in this mode */
pci_write_config_dword(dev, 0x84, pcic);
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
/*
* DreamWorks provided workaround for Dunord I-3000 problem
*
* This card decodes and responds to addresses not apparently
* assigned to it. We force a larger allocation to ensure that
* nothing gets put too close to it.
*/
static void __devinit quirk_dunord ( struct pci_dev * dev )
{
struct resource *r = &dev->resource [1];
r->start = 0;
r->end = 0xffffff;
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord);
/*
* i82380FB mobile docking controller: its PCI-to-PCI bridge
* is subtractive decoding (transparent), and does indicate this
* in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
* instead of 0x01.
*/
static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
{
dev->transparent = 1;
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge);
/*
* Common misconfiguration of the MediaGX/Geode PCI master that will
* reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
* datasheets found at http://www.national.com/ds/GX for info on what
* these bits do. <christer@weinigel.se>
*/
static void quirk_mediagx_master(struct pci_dev *dev)
{
u8 reg;
pci_read_config_byte(dev, 0x41, &reg);
if (reg & 2) {
reg &= ~2;
dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
pci_write_config_byte(dev, 0x41, reg);
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
/*
* Ensure C0 rev restreaming is off. This is normally done by
* the BIOS but in the odd case it is not the results are corruption
* hence the presence of a Linux check
*/
static void quirk_disable_pxb(struct pci_dev *pdev)
{
u16 config;
if (pdev->revision != 0x04) /* Only C0 requires this */
return;
pci_read_config_word(pdev, 0x40, &config);
if (config & (1<<6)) {
config &= ~(1<<6);
pci_write_config_word(pdev, 0x40, config);
dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n");
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
{
/* set sb600/sb700/sb800 sata to ahci mode */
u8 tmp;
pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
if (tmp == 0x01) {
pci_read_config_byte(pdev, 0x40, &tmp);
pci_write_config_byte(pdev, 0x40, tmp|1);
pci_write_config_byte(pdev, 0x9, 1);
pci_write_config_byte(pdev, 0xa, 6);
pci_write_config_byte(pdev, 0x40, tmp);
pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
dev_info(&pdev->dev, "set SATA to AHCI mode\n");
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
/*
* Serverworks CSB5 IDE does not fully support native mode
*/
static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
{
u8 prog;
pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
if (prog & 5) {
prog &= ~5;
pdev->class &= ~5;
pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
/* PCI layer will sort out resources */
}
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
/*
* Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
*/
static void __init quirk_ide_samemode(struct pci_dev *pdev)
{
u8 prog;
pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n");
prog &= ~5;
pdev->class &= ~5;
pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
}
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
/*
* Some ATA devices break if put into D3
*/
static void __devinit quirk_no_ata_d3(struct pci_dev *pdev)
{
/* Quirk the legacy ATA devices only. The AHCI ones are ok */
if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE)
pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, quirk_no_ata_d3);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_no_ata_d3);
/* This was originally an Alpha specific thing, but it really fits here.
* The i82375 PCI/EISA bridge appears as non-classified. Fix that.
*/
static void __init quirk_eisa_bridge(struct pci_dev *dev)
{
dev->class = PCI_CLASS_BRIDGE_EISA << 8;
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge);
/*
* On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
* is not activated. The myth is that Asus said that they do not want the
* users to be irritated by just another PCI Device in the Win98 device
* manager. (see the file prog/hotplug/README.p4b in the lm_sensors
* package 2.7.0 for details)
*
* The SMBus PCI Device can be activated by setting a bit in the ICH LPC
* bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
* becomes necessary to do this tweak in two steps -- the chosen trigger
* is either the Host bridge (preferred) or on-board VGA controller.
*
* Note that we used to unhide the SMBus that way on Toshiba laptops
* (Satellite A40 and Tecra M2) but then found that the thermal management
* was done by SMM code, which could cause unsynchronized concurrent
* 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;
static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
{
if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
switch(dev->subsystem_device) {
case 0x8025: /* P4B-LX */
case 0x8070: /* P4B */
case 0x8088: /* P4B533 */
case 0x1626: /* L3C notebook */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
switch(dev->subsystem_device) {
case 0x80b1: /* P4GE-V */
case 0x80b2: /* P4PE */
case 0x8093: /* P4B533-V */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
switch(dev->subsystem_device) {
case 0x8030: /* P4T533 */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
switch (dev->subsystem_device) {
case 0x8070: /* P4G8X Deluxe */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
switch (dev->subsystem_device) {
case 0x80c9: /* PU-DLS */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
switch (dev->subsystem_device) {
case 0x1751: /* M2N notebook */
case 0x1821: /* M5N notebook */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
switch (dev->subsystem_device) {
case 0x184b: /* W1N notebook */
case 0x186a: /* M6Ne notebook */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
switch (dev->subsystem_device) {
case 0x80f2: /* P4P800-X */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
switch (dev->subsystem_device) {
case 0x1882: /* M6V notebook */
case 0x1977: /* A6VA notebook */
asus_hides_smbus = 1;
}
} else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
switch(dev->subsystem_device) {
case 0x088C: /* HP Compaq nc8000 */
case 0x0890: /* HP Compaq nc6000 */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
switch (dev->subsystem_device) {
case 0x12bc: /* HP D330L */
case 0x12bd: /* HP D530 */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
switch (dev->subsystem_device) {
case 0x12bf: /* HP xw4100 */
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) {
case 0xC00C: /* Samsung P35 notebook */
asus_hides_smbus = 1;
}
} else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
switch(dev->subsystem_device) {
case 0x0058: /* Compaq Evo N620c */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
switch(dev->subsystem_device) {
case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
/* Motherboard doesn't have Host bridge
* subvendor/subdevice IDs, therefore checking
* its on-board VGA controller */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_IG)
switch(dev->subsystem_device) {
case 0x00b8: /* Compaq Evo D510 CMT */
case 0x00b9: /* Compaq Evo D510 SFF */
asus_hides_smbus = 1;
}
else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC)
switch (dev->subsystem_device) {
case 0x001A: /* Compaq Deskpro EN SSF P667 815E */
/* Motherboard doesn't have host bridge
* subvendor/subdevice IDs, therefore checking
* its on-board VGA controller */
asus_hides_smbus = 1;
}
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_IG, asus_hides_smbus_hostbridge);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge);
static void asus_hides_smbus_lpc(struct pci_dev *dev)
{
u16 val;
if (likely(!asus_hides_smbus))
return;
pci_read_config_word(dev, 0xF2, &val);
if (val & 0x8) {
pci_write_config_word(dev, 0xF2, val & (~0x8));
pci_read_config_word(dev, 0xF2, &val);
if (val & 0x8)
dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
else
dev_info(&dev->dev, "Enabled i801 SMBus device\n");
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
/* It appears we just have one such device. If not, we have a warning */
static void __iomem *asus_rcba_base;
static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev)
{
u32 rcba;
if (likely(!asus_hides_smbus))
return;
WARN_ON(asus_rcba_base);
pci_read_config_dword(dev, 0xF0, &rcba);
/* use bits 31:14, 16 kB aligned */
asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000);
if (asus_rcba_base == NULL)
return;
}
static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev)
{
u32 val;
if (likely(!asus_hides_smbus || !asus_rcba_base))
return;
/* read the Function Disable register, dword mode only */
val = readl(asus_rcba_base + 0x3418);
writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */
}
static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev)
{
if (likely(!asus_hides_smbus || !asus_rcba_base))
return;
iounmap(asus_rcba_base);
asus_rcba_base = NULL;
dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n");
}
static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
{
asus_hides_smbus_lpc_ich6_suspend(dev);
asus_hides_smbus_lpc_ich6_resume_early(dev);
asus_hides_smbus_lpc_ich6_resume(dev);
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6);
DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early);
/*
* SiS 96x south bridge: BIOS typically hides SMBus device...
*/
static void quirk_sis_96x_smbus(struct pci_dev *dev)
{
u8 val = 0;
pci_read_config_byte(dev, 0x77, &val);
if (val & 0x10) {
dev_info(&dev->dev, "Enabling SiS 96x SMBus\n");
pci_write_config_byte(dev, 0x77, val & ~0x10);
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
/*
* ... This is further complicated by the fact that some SiS96x south
* bridges pretend to be 85C503/5513 instead. In that case see if we
* spotted a compatible north bridge to make sure.
* (pci_find_device doesn't work yet)
*
* We can also enable the sis96x bit in the discovery register..
*/
#define SIS_DETECT_REGISTER 0x40
static void quirk_sis_503(struct pci_dev *dev)
{
u8 reg;
u16 devid;
pci_read_config_byte(dev, SIS_DETECT_REGISTER, &reg);
pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
return;
}
/*
* Ok, it now shows up as a 96x.. run the 96x quirk by
* hand in case it has already been processed.
* (depends on link order, which is apparently not guaranteed)
*/
dev->device = devid;
quirk_sis_96x_smbus(dev);
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
/*
* On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
* and MC97 modem controller are disabled when a second PCI soundcard is
* present. This patch, tweaking the VT8237 ISA bridge, enables them.
* -- bjd
*/
static void asus_hides_ac97_lpc(struct pci_dev *dev)
{
u8 val;
int asus_hides_ac97 = 0;
if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
if (dev->device == PCI_DEVICE_ID_VIA_8237)
asus_hides_ac97 = 1;
}
if (!asus_hides_ac97)
return;
pci_read_config_byte(dev, 0x50, &val);
if (val & 0xc0) {
pci_write_config_byte(dev, 0x50, val & (~0xc0));
pci_read_config_byte(dev, 0x50, &val);
if (val & 0xc0)
dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
else
dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n");
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
#if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
/*
* If we are using libata we can drive this chip properly but must
* do this early on to make the additional device appear during
* the PCI scanning.
*/
static void quirk_jmicron_ata(struct pci_dev *pdev)
{
u32 conf1, conf5, class;
u8 hdr;
/* Only poke fn 0 */
if (PCI_FUNC(pdev->devfn))
return;
pci_read_config_dword(pdev, 0x40, &conf1);
pci_read_config_dword(pdev, 0x80, &conf5);
conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
conf5 &= ~(1 << 24); /* Clear bit 24 */
switch (pdev->device) {
case PCI_DEVICE_ID_JMICRON_JMB360:
/* The controller should be in single function ahci mode */
conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
break;
case PCI_DEVICE_ID_JMICRON_JMB365:
case PCI_DEVICE_ID_JMICRON_JMB366:
/* Redirect IDE second PATA port to the right spot */
conf5 |= (1 << 24);
/* Fall through */
case PCI_DEVICE_ID_JMICRON_JMB361:
case PCI_DEVICE_ID_JMICRON_JMB363:
/* Enable dual function mode, AHCI on fn 0, IDE fn1 */
/* Set the class codes correctly and then direct IDE 0 */
conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
break;
case PCI_DEVICE_ID_JMICRON_JMB368:
/* The controller should be in single function IDE mode */
conf1 |= 0x00C00000; /* Set 22, 23 */
break;
}
pci_write_config_dword(pdev, 0x40, conf1);
pci_write_config_dword(pdev, 0x80, conf5);
/* Update pdev accordingly */
pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
pdev->hdr_type = hdr & 0x7f;
pdev->multifunction = !!(hdr & 0x80);
pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
pdev->class = class >> 8;
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
#endif
#ifdef CONFIG_X86_IO_APIC
static void __init quirk_alder_ioapic(struct pci_dev *pdev)
{
int i;
if ((pdev->class >> 8) != 0xff00)
return;
/* the first BAR is the location of the IO APIC...we must
* not touch this (and it's already covered by the fixmap), so
* forcibly insert it into the resource tree */
if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
insert_resource(&iomem_resource, &pdev->resource[0]);
/* The next five BARs all seem to be rubbish, so just clean
* them out */
for (i=1; i < 6; i++) {
memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
#endif
static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
{
pcie_mch_quirk = 1;
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
/*
* It's possible for the MSI to get corrupted if shpc and acpi
* are used together on certain PXH-based systems.
*/
static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
{
pci_msi_off(dev);
dev->no_msi = 1;
dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n");
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
/*
* Some Intel PCI Express chipsets have trouble with downstream
* device power management.
*/
static void quirk_intel_pcie_pm(struct pci_dev * dev)
{
pci_pm_d3_delay = 120;
dev->no_d1d2 = 1;
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
#ifdef CONFIG_X86_IO_APIC
/*
* Boot interrupts on some chipsets cannot be turned off. For these chipsets,
* remap the original interrupt in the linux kernel to the boot interrupt, so
* that a PCI device's interrupt handler is installed on the boot interrupt
* line instead.
*/
static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev)
{
if (noioapicquirk || noioapicreroute)
return;
dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT;
printk(KERN_INFO "PCI quirk: reroute interrupts for 0x%04x:0x%04x\n",
dev->vendor, dev->device);
return;
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
/*
* On some chipsets we can disable the generation of legacy INTx boot
* interrupts.
*/
/*
* IO-APIC1 on 6300ESB generates boot interrupts, see intel order no
* 300641-004US, section 5.7.3.
*/
#define INTEL_6300_IOAPIC_ABAR 0x40
#define INTEL_6300_DISABLE_BOOT_IRQ (1<<14)
static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
{
u16 pci_config_word;
if (noioapicquirk)
return;
pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word);
pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ;
pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word);
printk(KERN_INFO "disabled boot interrupt on device 0x%04x:0x%04x\n",
dev->vendor, dev->device);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
/*
* disable boot interrupts on HT-1000
*/
#define BC_HT1000_FEATURE_REG 0x64
#define BC_HT1000_PIC_REGS_ENABLE (1<<0)
#define BC_HT1000_MAP_IDX 0xC00
#define BC_HT1000_MAP_DATA 0xC01
static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
{
u32 pci_config_dword;
u8 irq;
if (noioapicquirk)
return;
pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
BC_HT1000_PIC_REGS_ENABLE);
for (irq = 0x10; irq < 0x10 + 32; irq++) {
outb(irq, BC_HT1000_MAP_IDX);
outb(0x00, BC_HT1000_MAP_DATA);
}
pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
printk(KERN_INFO "disabled boot interrupts on PCI device"
"0x%04x:0x%04x\n", dev->vendor, dev->device);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
/*
* disable boot interrupts on AMD and ATI chipsets
*/
/*
* NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131
* rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode
* (due to an erratum).
*/
#define AMD_813X_MISC 0x40
#define AMD_813X_NOIOAMODE (1<<0)
static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
{
u32 pci_config_dword;
if (noioapicquirk)
return;
pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
pci_config_dword &= ~AMD_813X_NOIOAMODE;
pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword);
printk(KERN_INFO "disabled boot interrupts on PCI device "
"0x%04x:0x%04x\n", dev->vendor, dev->device);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
#define AMD_8111_PCI_IRQ_ROUTING 0x56
static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev)
{
u16 pci_config_word;
if (noioapicquirk)
return;
pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word);
if (!pci_config_word) {
printk(KERN_INFO "boot interrupts on PCI device 0x%04x:0x%04x "
"already disabled\n",
dev->vendor, dev->device);
return;
}
pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0);
printk(KERN_INFO "disabled boot interrupts on PCI device "
"0x%04x:0x%04x\n", dev->vendor, dev->device);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
#endif /* CONFIG_X86_IO_APIC */
/*
* Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
* but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
* Re-allocate the region if needed...
*/
static void __init quirk_tc86c001_ide(struct pci_dev *dev)
{
struct resource *r = &dev->resource[0];
if (r->start & 0x8) {
r->start = 0;
r->end = 0xf;
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
quirk_tc86c001_ide);
static void __devinit quirk_netmos(struct pci_dev *dev)
{
unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
unsigned int num_serial = dev->subsystem_device & 0xf;
/*
* These Netmos parts are multiport serial devices with optional
* parallel ports. Even when parallel ports are present, they
* are identified as class SERIAL, which means the serial driver
* will claim them. To prevent this, mark them as class OTHER.
* These combo devices should be claimed by parport_serial.
*
* The subdevice ID is of the form 0x00PS, where <P> is the number
* of parallel ports and <S> is the number of serial ports.
*/
switch (dev->device) {
case PCI_DEVICE_ID_NETMOS_9735:
case PCI_DEVICE_ID_NETMOS_9745:
case PCI_DEVICE_ID_NETMOS_9835:
case PCI_DEVICE_ID_NETMOS_9845:
case PCI_DEVICE_ID_NETMOS_9855:
if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
num_parallel) {
dev_info(&dev->dev, "Netmos %04x (%u parallel, "
"%u serial); changing class SERIAL to OTHER "
"(use parport_serial)\n",
dev->device, num_parallel, num_serial);
dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
(dev->class & 0xff);
}
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
{
u16 command, pmcsr;
u8 __iomem *csr;
u8 cmd_hi;
int pm;
switch (dev->device) {
/* PCI IDs taken from drivers/net/e100.c */
case 0x1029:
case 0x1030 ... 0x1034:
case 0x1038 ... 0x103E:
case 0x1050 ... 0x1057:
case 0x1059:
case 0x1064 ... 0x106B:
case 0x1091 ... 0x1095:
case 0x1209:
case 0x1229:
case 0x2449:
case 0x2459:
case 0x245D:
case 0x27DC:
break;
default:
return;
}
/*
* Some firmware hands off the e100 with interrupts enabled,
* which can cause a flood of interrupts if packets are
* received before the driver attaches to the device. So
* disable all e100 interrupts here. The driver will
* re-enable them when it's ready.
*/
pci_read_config_word(dev, PCI_COMMAND, &command);
if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
return;
/*
* Check that the device is in the D0 power state. If it's not,
* there is no point to look any further.
*/
pm = pci_find_capability(dev, PCI_CAP_ID_PM);
if (pm) {
pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
return;
}
/* Convert from PCI bus to resource space. */
csr = ioremap(pci_resource_start(dev, 0), 8);
if (!csr) {
dev_warn(&dev->dev, "Can't map e100 registers\n");
return;
}
cmd_hi = readb(csr + 3);
if (cmd_hi == 0) {
dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; "
"disabling\n");
writeb(1, csr + 3);
}
iounmap(csr);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
{
/* rev 1 ncr53c810 chips don't set the class at all which means
* they don't get their resources remapped. Fix that here.
*/
if (dev->class == PCI_CLASS_NOT_DEFINED) {
dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n");
dev->class = PCI_CLASS_STORAGE_SCSI;
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
/* Enable 1k I/O space granularity on the Intel P64H2 */
static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
{
u16 en1k;
u8 io_base_lo, io_limit_lo;
unsigned long base, limit;
struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
pci_read_config_word(dev, 0x40, &en1k);
if (en1k & 0x200) {
dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n");
pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
if (base <= limit) {
res->start = base;
res->end = limit + 0x3ff;
}
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
/* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
* The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
* in drivers/pci/setup-bus.c
*/
static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
{
u16 en1k, iobl_adr, iobl_adr_1k;
struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
pci_read_config_word(dev, 0x40, &en1k);
if (en1k & 0x200) {
pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
if (iobl_adr != iobl_adr_1k) {
dev_info(&dev->dev, "Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1KB granularity\n",
iobl_adr,iobl_adr_1k);
pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
}
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
/* Under some circumstances, AER is not linked with extended capabilities.
* Force it to be linked by setting the corresponding control bit in the
* config space.
*/
static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
{
uint8_t b;
if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
if (!(b & 0x20)) {
pci_write_config_byte(dev, 0xf41, b | 0x20);
dev_info(&dev->dev,
"Linking AER extended capability\n");
}
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
quirk_nvidia_ck804_pcie_aer_ext_cap);
DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
quirk_nvidia_ck804_pcie_aer_ext_cap);
static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
{
/*
* Disable PCI Bus Parking and PCI Master read caching on CX700
* which causes unspecified timing errors with a VT6212L on the PCI
* bus leading to USB2.0 packet loss. The defaults are that these
* features are turned off but some BIOSes turn them on.
*/
uint8_t b;
if (pci_read_config_byte(dev, 0x76, &b) == 0) {
if (b & 0x40) {
/* 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 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, 5706S, 5708,
* 5708S and 5709 rev. A
*/
if ((dev->device == PCI_DEVICE_ID_NX2_5706) ||
(dev->device == PCI_DEVICE_ID_NX2_5706S) ||
(dev->device == PCI_DEVICE_ID_NX2_5708) ||
(dev->device == PCI_DEVICE_ID_NX2_5708S) ||
((dev->device == PCI_DEVICE_ID_NX2_5709) &&
(dev->revision & 0xf0) == 0x0)) {
if (dev->vpd)
dev->vpd->len = 0x80;
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_NX2_5706,
quirk_brcm_570x_limit_vpd);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_NX2_5706S,
quirk_brcm_570x_limit_vpd);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_NX2_5708,
quirk_brcm_570x_limit_vpd);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_NX2_5708S,
quirk_brcm_570x_limit_vpd);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_NX2_5709,
quirk_brcm_570x_limit_vpd);
DECLARE_PCI_FIXUP_FINAL(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
* some other busses controlled by the chipset even if Linux is not
* aware of it. Instead of setting the flag on all busses in the
* machine, simply disable MSI globally.
*/
static void __init quirk_disable_all_msi(struct pci_dev *dev)
{
pci_no_msi();
dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n");
}
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 */
static void __devinit quirk_disable_msi(struct pci_dev *dev)
{
if (dev->subordinate) {
dev_warn(&dev->dev, "MSI quirk detected; "
"subordinate MSI disabled\n");
dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
/* Go through the list of Hypertransport capabilities and
* return 1 if a HT MSI capability is found and enabled */
static int __devinit msi_ht_cap_enabled(struct pci_dev *dev)
{
int pos, ttl = 48;
pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
while (pos && ttl--) {
u8 flags;
if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
&flags) == 0)
{
dev_info(&dev->dev, "Found %s HT MSI Mapping\n",
flags & HT_MSI_FLAGS_ENABLE ?
"enabled" : "disabled");
return (flags & HT_MSI_FLAGS_ENABLE) != 0;
}
pos = pci_find_next_ht_capability(dev, pos,
HT_CAPTYPE_MSI_MAPPING);
}
return 0;
}
/* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
{
if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
dev_warn(&dev->dev, "MSI quirk detected; "
"subordinate MSI disabled\n");
dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
quirk_msi_ht_cap);
/* The nVidia CK804 chipset may have 2 HT MSI mappings.
* MSI are supported if the MSI capability set in any of these mappings.
*/
static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
{
struct pci_dev *pdev;
if (!dev->subordinate)
return;
/* check HT MSI cap on this chipset and the root one.
* a single one having MSI is enough to be sure that MSI are supported.
*/
pdev = pci_get_slot(dev->bus, 0);
if (!pdev)
return;
if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
dev_warn(&dev->dev, "MSI quirk detected; "
"subordinate MSI disabled\n");
dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
}
pci_dev_put(pdev);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
quirk_nvidia_ck804_msi_ht_cap);
/* Force enable MSI mapping capability on HT bridges */
static void __devinit ht_enable_msi_mapping(struct pci_dev *dev)
{
int pos, ttl = 48;
pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
while (pos && ttl--) {
u8 flags;
if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
&flags) == 0) {
dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
flags | HT_MSI_FLAGS_ENABLE);
}
pos = pci_find_next_ht_capability(dev, pos,
HT_CAPTYPE_MSI_MAPPING);
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
ht_enable_msi_mapping);
/* The P5N32-SLI Premium motherboard from Asus has a problem with msi
* for the MCP55 NIC. It is not yet determined whether the msi problem
* also affects other devices. As for now, turn off msi for this device.
*/
static void __devinit nvenet_msi_disable(struct pci_dev *dev)
{
if (dmi_name_in_vendors("P5N32-SLI PREMIUM")) {
dev_info(&dev->dev,
"Disabling msi for MCP55 NIC on P5N32-SLI Premium\n");
dev->no_msi = 1;
}
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
PCI_DEVICE_ID_NVIDIA_NVENET_15,
nvenet_msi_disable);
static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
{
struct pci_dev *host_bridge;
int pos, ttl = 48;
/*
* HT MSI mapping should be disabled on devices that are below
* a non-Hypertransport host bridge. Locate the host bridge...
*/
host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
if (host_bridge == NULL) {
dev_warn(&dev->dev,
"nv_msi_ht_cap_quirk didn't locate host bridge\n");
return;
}
pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
if (pos != 0) {
/* Host bridge is to HT */
ht_enable_msi_mapping(dev);
return;
}
/* Host bridge is not to HT, disable HT MSI mapping on this device */
pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
while (pos && ttl--) {
u8 flags;
if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
&flags) == 0) {
dev_info(&dev->dev, "Disabling HT MSI mapping");
pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
flags & ~HT_MSI_FLAGS_ENABLE);
}
pos = pci_find_next_ht_capability(dev, pos,
HT_CAPTYPE_MSI_MAPPING);
}
}
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)
{
dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
}
static void __devinit quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
{
struct pci_dev *p;
/* SB700 MSI issue will be fixed at HW level from revision A21,
* we need check PCI REVISION ID of SMBus controller to get SB700
* revision.
*/
p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
NULL);
if (!p)
return;
if ((p->revision < 0x3B) && (p->revision >= 0x30))
dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
pci_dev_put(p);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5780,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5780S,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5714,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5714S,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5715,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
PCI_DEVICE_ID_TIGON3_5715S,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
quirk_msi_intx_disable_ati_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
quirk_msi_intx_disable_ati_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
quirk_msi_intx_disable_ati_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
quirk_msi_intx_disable_ati_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
quirk_msi_intx_disable_ati_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
quirk_msi_intx_disable_bug);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
quirk_msi_intx_disable_bug);
#endif /* CONFIG_PCI_MSI */
static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
struct pci_fixup *end)
{
while (f < end) {
if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
(f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
dev_dbg(&dev->dev, "calling %pF\n", f->hook);
f->hook(dev);
}
f++;
}
}
extern struct pci_fixup __start_pci_fixups_early[];
extern struct pci_fixup __end_pci_fixups_early[];
extern struct pci_fixup __start_pci_fixups_header[];
extern struct pci_fixup __end_pci_fixups_header[];
extern struct pci_fixup __start_pci_fixups_final[];
extern struct pci_fixup __end_pci_fixups_final[];
extern struct pci_fixup __start_pci_fixups_enable[];
extern struct pci_fixup __end_pci_fixups_enable[];
extern struct pci_fixup __start_pci_fixups_resume[];
extern struct pci_fixup __end_pci_fixups_resume[];
extern struct pci_fixup __start_pci_fixups_resume_early[];
extern struct pci_fixup __end_pci_fixups_resume_early[];
extern struct pci_fixup __start_pci_fixups_suspend[];
extern struct pci_fixup __end_pci_fixups_suspend[];
void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
{
struct pci_fixup *start, *end;
switch(pass) {
case pci_fixup_early:
start = __start_pci_fixups_early;
end = __end_pci_fixups_early;
break;
case pci_fixup_header:
start = __start_pci_fixups_header;
end = __end_pci_fixups_header;
break;
case pci_fixup_final:
start = __start_pci_fixups_final;
end = __end_pci_fixups_final;
break;
case pci_fixup_enable:
start = __start_pci_fixups_enable;
end = __end_pci_fixups_enable;
break;
case pci_fixup_resume:
start = __start_pci_fixups_resume;
end = __end_pci_fixups_resume;
break;
case pci_fixup_resume_early:
start = __start_pci_fixups_resume_early;
end = __end_pci_fixups_resume_early;
break;
case pci_fixup_suspend:
start = __start_pci_fixups_suspend;
end = __end_pci_fixups_suspend;
break;
default:
/* stupid compiler warning, you would think with an enum... */
return;
}
pci_do_fixups(dev, start, end);
}
#else
void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) {}
#endif
EXPORT_SYMBOL(pci_fixup_device);