quirks.c 66.6 KB
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/*
 *  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>
 *
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 *  Init/reset quirks for USB host controllers should be in the
 *  USB quirks file, where their drivers can access reuse it.
 *
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 *  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>
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#include <linux/acpi.h>
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#include <linux/kallsyms.h>
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#include "pci.h"
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/* 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);

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/* Deal with broken BIOS'es that neglect to enable passive release,
   which can cause problems in combination with the 82441FX/PPro MTRRs */
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static void quirk_passive_release(struct pci_dev *dev)
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{
	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)) {
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			dev_err(&d->dev, "PIIX3: Enabling Passive Release\n");
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			dlc |= 1<<1;
			pci_write_config_byte(d, 0x82, dlc);
		}
	}
}
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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);
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/*  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 */
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int isa_dma_bridge_buggy;
EXPORT_SYMBOL(isa_dma_bridge_buggy);
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static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
{
	if (!isa_dma_bridge_buggy) {
		isa_dma_bridge_buggy=1;
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		dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n");
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	}
}
	/*
	 * Its not totally clear which chipsets are the problematic ones
	 * We know 82C586 and 82C596 variants are affected.
	 */
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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);
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int pci_pci_problems;
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EXPORT_SYMBOL(pci_pci_problems);
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/*
 *	Chipsets where PCI->PCI transfers vanish or hang
 */
static void __devinit quirk_nopcipci(struct pci_dev *dev)
{
	if ((pci_pci_problems & PCIPCI_FAIL)==0) {
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		dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n");
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		pci_pci_problems |= PCIPCI_FAIL;
	}
}
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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);
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static void __devinit quirk_nopciamd(struct pci_dev *dev)
{
	u8 rev;
	pci_read_config_byte(dev, 0x08, &rev);
	if (rev == 0x13) {
		/* Erratum 24 */
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		dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n");
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		pci_pci_problems |= PCIAGP_FAIL;
	}
}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD,	PCI_DEVICE_ID_AMD_8151_0,	quirk_nopciamd);
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/*
 *	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) {
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		dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
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		pci_pci_problems |= PCIPCI_TRITON;
	}
}
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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);
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/*
 *	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 
 */
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static void quirk_vialatency(struct pci_dev *dev)
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{
	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 */
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		if (p->revision < 0x40 || p->revision > 0x42)
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			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 */
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		if (p->revision < 0x10 || p->revision > 0x12)
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			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);
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	dev_info(&dev->dev, "Applying VIA southbridge workaround\n");
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exit:
	pci_dev_put(p);
}
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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);
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/* Must restore this on a resume from RAM */
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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);
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/*
 *	VIA Apollo VP3 needs ETBF on BT848/878
 */
static void __devinit quirk_viaetbf(struct pci_dev *dev)
{
	if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
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		dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
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		pci_pci_problems |= PCIPCI_VIAETBF;
	}
}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C597_0,	quirk_viaetbf);
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static void __devinit quirk_vsfx(struct pci_dev *dev)
{
	if ((pci_pci_problems&PCIPCI_VSFX)==0) {
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		dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
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		pci_pci_problems |= PCIPCI_VSFX;
	}
}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C576,	quirk_vsfx);
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/*
 *	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) {
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		dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
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		pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
	}
}
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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);
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/*
 *	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) {
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		dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
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		pci_pci_problems |= PCIPCI_NATOMA;
	}
}
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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);
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/*
 *  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;
}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM,	PCI_DEVICE_ID_IBM_CITRINE,	quirk_citrine);
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/*
 *  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;
	}
}
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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);
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static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
	unsigned size, int nr, const char *name)
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{
	region &= ~(size-1);
	if (region) {
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		struct pci_bus_region bus_region;
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		struct resource *res = dev->resource + nr;

		res->name = pci_name(dev);
		res->start = region;
		res->end = region + size - 1;
		res->flags = IORESOURCE_IO;
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		/* 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);

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		pci_claim_resource(dev, nr);
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		dev_info(&dev->dev, "quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
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	}
}	

/*
 *	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)
{
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	dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
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	/* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
	request_region(0x3b0, 0x0C, "RadeonIGP");
	request_region(0x3d3, 0x01, "RadeonIGP");
}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI,	PCI_DEVICE_ID_ATI_RS100,   quirk_ati_exploding_mce);
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/*
 * 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);
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	quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
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	pci_read_config_word(dev, 0xE2, &region);
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	quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL,	PCI_DEVICE_ID_AL_M7101,		quirk_ali7101_acpi);
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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;
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	dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
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}

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;
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	dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
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}

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/*
 * PIIX4 ACPI: Two IO regions pointed to by longwords at
 *	0x40 (64 bytes of ACPI registers)
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 *	0x90 (16 bytes of SMB registers)
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 * and a few strange programmable PIIX4 device resources.
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 */
static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
{
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	u32 region, res_a;
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	pci_read_config_dword(dev, 0x40, &region);
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	quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
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	pci_read_config_dword(dev, 0x90, &region);
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	quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
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	/* 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);
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}
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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);
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/*
 * 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);
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	quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO");
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	pci_read_config_dword(dev, 0x58, &region);
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	quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO");
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}
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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);
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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");
}
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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);
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/*
 * 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;

481
	if (dev->revision & 0x10) {
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		pci_read_config_dword(dev, 0x48, &region);
		region &= PCI_BASE_ADDRESS_IO_MASK;
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		quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
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	}
}
487
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C586_3,	quirk_vt82c586_acpi);
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/*
 * 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;
504
	quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
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	pci_read_config_dword(dev, 0x90, &smb);
	smb &= PCI_BASE_ADDRESS_IO_MASK;
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	quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C686_4,	quirk_vt82c686_acpi);
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/*
 * 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;
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	quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
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	pci_read_config_word(dev, 0xd0, &smb);
	smb &= PCI_BASE_ADDRESS_IO_MASK;
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	quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
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}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_8235,	quirk_vt8235_acpi);

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#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.
 */
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static void quirk_via_ioapic(struct pci_dev *dev)
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{
	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 */
		
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	dev_info(&dev->dev, "%sbling VIA external APIC routing\n",
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	       tmp == 0 ? "Disa" : "Ena");

	/* Offset 0x58: External APIC IRQ output control */
	pci_write_config_byte (dev, 0x58, tmp);
}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C686,	quirk_via_ioapic);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C686,	quirk_via_ioapic);
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/*
 * 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.
 */
567
static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
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{
	u8 misc_control2;
#define BYPASS_APIC_DEASSERT 8

	pci_read_config_byte(dev, 0x5B, &misc_control2);
	if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
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		dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
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		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);
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DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_8237,		quirk_via_vt8237_bypass_apic_deassert);
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/*
 * 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
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 * noapic specified. For the moment we assume it's the erratum. We may be wrong
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 * of course. However the advice is demonstrably good even if so..
 */
static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
{
592
	if (dev->revision >= 0x02) {
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		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");
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	}
}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD,	PCI_DEVICE_ID_AMD_VIPER_7410,	quirk_amd_ioapic);
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static void __init quirk_ioapic_rmw(struct pci_dev *dev)
{
	if (dev->devfn == 0 && dev->bus->number == 0)
		sis_apic_bug = 1;
}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI,	PCI_ANY_ID,			quirk_ioapic_rmw);
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#define AMD8131_revA0        0x01
#define AMD8131_revB0        0x11
#define AMD8131_MISC         0x40
#define AMD8131_NIOAMODE_BIT 0
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static void quirk_amd_8131_ioapic(struct pci_dev *dev)
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{ 
612
        unsigned char tmp;
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        if (nr_ioapics == 0) 
                return;

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        if (dev->revision == AMD8131_revA0 || dev->revision == AMD8131_revB0) {
618
                dev_info(&dev->dev, "Fixing up AMD8131 IOAPIC mode\n");
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                pci_read_config_byte( dev, AMD8131_MISC, &tmp);
                tmp &= ~(1 << AMD8131_NIOAMODE_BIT);
                pci_write_config_byte( dev, AMD8131_MISC, tmp);
        }
} 
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
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DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
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#endif /* CONFIG_X86_IO_APIC */

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/*
 * 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)
{
634
	if (dev->subordinate && dev->revision <= 0x12) {
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		dev_info(&dev->dev, "AMD8131 rev %x detected; "
			"disabling PCI-X MMRBC\n", dev->revision);
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		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);
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/*
 * 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;
}
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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);
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/*
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 *	VIA bridges which have VLink
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 */
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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:
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		/* 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);
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		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);
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/**
 *	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
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 *	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).
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 */

static void quirk_via_vlink(struct pci_dev *dev)
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{
	u8 irq, new_irq;

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	/* Check if we have VLink at all */
	if (via_vlink_dev_lo == -1)
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		return;

	new_irq = dev->irq;

	/* Don't quirk interrupts outside the legacy IRQ range */
	if (!new_irq || new_irq > 15)
		return;

733
	/* Internal device ? */
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	if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
	    PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
736 737 738 739 740
		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 */

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	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
	if (new_irq != irq) {
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		dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n",
			irq, new_irq);
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		udelay(15);	/* unknown if delay really needed */
		pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
	}
}
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DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
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/*
 * 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);
}
762
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C597_0,	quirk_vt82c598_id);
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/*
 * 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.
 */
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static void quirk_cardbus_legacy(struct pci_dev *dev)
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{
	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);
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DECLARE_PCI_FIXUP_RESUME(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
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/*
 * 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!
 */
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static void quirk_amd_ordering(struct pci_dev *dev)
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{
	u32 pcic;
	pci_read_config_dword(dev, 0x4C, &pcic);
	if ((pcic&6)!=6) {
		pcic |= 6;
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		dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n");
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		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);
	}
}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD,	PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD,	PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
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/*
 *	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;
}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD,	PCI_DEVICE_ID_DUNORD_I3000,	quirk_dunord);
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/*
 * 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;
}
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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);
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/*
 * 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>
 */
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static void quirk_mediagx_master(struct pci_dev *dev)
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{
	u8 reg;
	pci_read_config_byte(dev, 0x41, &reg);
	if (reg & 2) {
		reg &= ~2;
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		dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
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                pci_write_config_byte(dev, 0x41, reg);
	}
}
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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);
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/*
 *	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
 */
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static void quirk_disable_pxb(struct pci_dev *pdev)
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{
	u16 config;
	
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	if (pdev->revision != 0x04)		/* Only C0 requires this */
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		return;
	pci_read_config_word(pdev, 0x40, &config);
	if (config & (1<<6)) {
		config &= ~(1<<6);
		pci_write_config_word(pdev, 0x40, config);
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		dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n");
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	}
}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82454NX,	quirk_disable_pxb);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82454NX,	quirk_disable_pxb);
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static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
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{
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	/* set sb600/sb700/sb800 sata to ahci mode */
	u8 tmp;
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	pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
	if (tmp == 0x01) {
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		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);

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		pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
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		dev_info(&pdev->dev, "set SATA to AHCI mode\n");
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	}
}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
DECLARE_PCI_FIXUP_RESUME(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(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
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/*
 *	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);
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		/* PCI layer will sort out resources */
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	}
}
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DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
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/*
 *	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))) {
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		dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n");
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		prog &= ~5;
		pdev->class &= ~5;
		pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
	}
}
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DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
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/* 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;
}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82375,	quirk_eisa_bridge);
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/*
 * 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 
945 946
 * becomes necessary to do this tweak in two steps -- the chosen trigger
 * is either the Host bridge (preferred) or on-board VGA controller.
947 948 949 950 951 952 953
 *
 * 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.
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 *
 * 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.
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 */
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static int asus_hides_smbus;
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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) {
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			case 0x8025: /* P4B-LX */
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			case 0x8070: /* P4B */
			case 0x8088: /* P4B533 */
			case 0x1626: /* L3C notebook */
				asus_hides_smbus = 1;
			}
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		else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
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			switch(dev->subsystem_device) {
			case 0x80b1: /* P4GE-V */
			case 0x80b2: /* P4PE */
			case 0x8093: /* P4B533-V */
				asus_hides_smbus = 1;
			}
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		else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
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			switch(dev->subsystem_device) {
			case 0x8030: /* P4T533 */
				asus_hides_smbus = 1;
			}
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		else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
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			switch (dev->subsystem_device) {
			case 0x8070: /* P4G8X Deluxe */
				asus_hides_smbus = 1;
			}
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		else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
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			switch (dev->subsystem_device) {
			case 0x80c9: /* PU-DLS */
				asus_hides_smbus = 1;
			}
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		else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
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			switch (dev->subsystem_device) {
			case 0x1751: /* M2N notebook */
			case 0x1821: /* M5N notebook */
				asus_hides_smbus = 1;
			}
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		else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
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			switch (dev->subsystem_device) {
			case 0x184b: /* W1N notebook */
			case 0x186a: /* M6Ne notebook */
				asus_hides_smbus = 1;
			}
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		else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
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			switch (dev->subsystem_device) {
			case 0x80f2: /* P4P800-X */
				asus_hides_smbus = 1;
			}
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		else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
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			switch (dev->subsystem_device) {
			case 0x1882: /* M6V notebook */
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			case 0x1977: /* A6VA notebook */
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				asus_hides_smbus = 1;
			}
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	} 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;
			}
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		else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
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			switch (dev->subsystem_device) {
			case 0x12bc: /* HP D330L */
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			case 0x12bd: /* HP D530 */
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				asus_hides_smbus = 1;
			}
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		else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
			switch (dev->subsystem_device) {
			case 0x12bf: /* HP xw4100 */
				asus_hides_smbus = 1;
			}
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       } 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;
                       }
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	} 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;
			}
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		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;
			}
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	}
}
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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);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82875_HB,	asus_hides_smbus_hostbridge);
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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);
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static void asus_hides_smbus_lpc(struct pci_dev *dev)
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{
	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)
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			dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
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		else
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			dev_info(&dev->dev, "Enabled i801 SMBus device\n");
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	}
}
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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(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82801AA_0,	asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82801DB_0,	asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82801BA_0,	asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82801CA_0,	asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82801CA_12,	asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82801DB_12,	asus_hides_smbus_lpc);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82801EB_0,	asus_hides_smbus_lpc);
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static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116
{
	u32 val, rcba;
	void __iomem *base;

	if (likely(!asus_hides_smbus))
		return;
	pci_read_config_dword(dev, 0xF0, &rcba);
	base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); /* use bits 31:14, 16 kB aligned */
	if (base == NULL) return;
	val=readl(base + 0x3418); /* read the Function Disable register, dword mode only */
	writel(val & 0xFFFFFFF7, base + 0x3418); /* enable the SMBus device */
	iounmap(base);
1117
	dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n");
1118
}
1119 1120
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH6_1,	asus_hides_smbus_lpc_ich6);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH6_1,	asus_hides_smbus_lpc_ich6);
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/*
 * SiS 96x south bridge: BIOS typically hides SMBus device...
 */
1125
static void quirk_sis_96x_smbus(struct pci_dev *dev)
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{
	u8 val = 0;
	pci_read_config_byte(dev, 0x77, &val);
1129
	if (val & 0x10) {
1130
		dev_info(&dev->dev, "Enabling SiS 96x SMBus\n");
1131 1132
		pci_write_config_byte(dev, 0x77, val & ~0x10);
	}
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}
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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(PCI_VENDOR_ID_SI,	PCI_DEVICE_ID_SI_961,		quirk_sis_96x_smbus);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI,	PCI_DEVICE_ID_SI_962,		quirk_sis_96x_smbus);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI,	PCI_DEVICE_ID_SI_963,		quirk_sis_96x_smbus);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI,	PCI_DEVICE_ID_SI_LPC,		quirk_sis_96x_smbus);
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/*
 * ... 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

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static void quirk_sis_503(struct pci_dev *dev)
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{
	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;
	}

	/*
1167 1168 1169
	 * 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)
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	 */
	dev->device = devid;
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	quirk_sis_96x_smbus(dev);
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI,	PCI_DEVICE_ID_SI_503,		quirk_sis_503);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI,	PCI_DEVICE_ID_SI_503,		quirk_sis_503);
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/*
 * 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
 */
1184
static void asus_hides_ac97_lpc(struct pci_dev *dev)
1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201
{
	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)
1202
			dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
1203
		else
1204
			dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n");
1205 1206
	}
}
1207 1208
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
1209

1210
#if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
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Alan Cox 已提交
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/*
 *	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.
 */
1217
static void quirk_jmicron_ata(struct pci_dev *pdev)
A
Alan Cox 已提交
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{
1219
	u32 conf1, conf5, class;
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	u8 hdr;

	/* Only poke fn 0 */
	if (PCI_FUNC(pdev->devfn))
		return;

1226 1227
	pci_read_config_dword(pdev, 0x40, &conf1);
	pci_read_config_dword(pdev, 0x80, &conf5);
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1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246
	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 */
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Tejun Heo 已提交
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		conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
1248 1249 1250 1251 1252 1253
		break;

	case PCI_DEVICE_ID_JMICRON_JMB368:
		/* The controller should be in single function IDE mode */
		conf1 |= 0x00C00000; /* Set 22, 23 */
		break;
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	}
1255 1256 1257 1258 1259 1260 1261 1262

	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);
1263 1264 1265

	pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
	pdev->class = class >> 8;
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}
1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278
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(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
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#endif

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Linus Torvalds 已提交
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#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]));
	}

}
1303
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_EESSC,	quirk_alder_ioapic);
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#endif

int pcie_mch_quirk;
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Adrian Bunk 已提交
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EXPORT_SYMBOL(pcie_mch_quirk);
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static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
{
	pcie_mch_quirk = 1;
}
1313 1314 1315
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);
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Linus Torvalds 已提交
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1317 1318 1319 1320 1321 1322 1323

/*
 * 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)
{
1324
	pci_msi_off(dev);
1325
	dev->no_msi = 1;
1326
	dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n");
1327 1328 1329 1330 1331 1332 1333
}
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);

1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364
/*
 * 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);
1365

1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383
/*
 * 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);

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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) {
1407
			dev_info(&dev->dev, "Netmos %04x (%u parallel, "
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Linus Torvalds 已提交
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				"%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);

1418 1419
static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
{
1420
	u16 command, pmcsr;
1421 1422
	u8 __iomem *csr;
	u8 cmd_hi;
1423
	int pm;
1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453

	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);

1454
	if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
1455 1456
		return;

1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467
	/*
	 * 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;
	}

1468 1469
	/* Convert from PCI bus to resource space.  */
	csr = ioremap(pci_resource_start(dev, 0), 8);
1470
	if (!csr) {
1471
		dev_warn(&dev->dev, "Can't map e100 registers\n");
1472 1473 1474 1475 1476
		return;
	}

	cmd_hi = readb(csr + 3);
	if (cmd_hi == 0) {
1477 1478
		dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; "
			"disabling\n");
1479 1480 1481 1482 1483
		writeb(1, csr + 3);
	}

	iounmap(csr);
}
1484
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
I
Ivan Kokshaysky 已提交
1485 1486 1487 1488 1489 1490 1491 1492

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) {
1493
		dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n");
I
Ivan Kokshaysky 已提交
1494 1495 1496 1497 1498
		dev->class = PCI_CLASS_STORAGE_SCSI;
	}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);

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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)) {
1504
#ifdef DEBUG
B
Bjorn Helgaas 已提交
1505
			dev_dbg(&dev->dev, "calling ");
1506
			print_fn_descriptor_symbol("%s\n", f->hook);
1507
#endif
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			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[];
1522 1523
extern struct pci_fixup __start_pci_fixups_resume[];
extern struct pci_fixup __end_pci_fixups_resume[];
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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;

1551 1552 1553 1554 1555
	case pci_fixup_resume:
		start = __start_pci_fixups_resume;
		end = __end_pci_fixups_resume;
		break;

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	default:
		/* stupid compiler warning, you would think with an enum... */
		return;
	}
	pci_do_fixups(dev, start, end);
}
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Adrian Bunk 已提交
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EXPORT_SYMBOL(pci_fixup_device);
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1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574
/* 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) {
1575
		dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n");
1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589

		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);

1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606
/* 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) {
1607
			dev_info(&dev->dev, "Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1KB granularity\n",
1608 1609 1610 1611 1612 1613 1614
				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);

1615 1616 1617 1618
/* 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.
 */
1619
static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
1620 1621 1622 1623 1624
{
	uint8_t b;
	if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
		if (!(b & 0x20)) {
			pci_write_config_byte(dev, 0xf41, b | 0x20);
1625 1626
			dev_info(&dev->dev,
			       "Linking AER extended capability\n");
1627 1628 1629 1630 1631
		}
	}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA,  PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
			quirk_nvidia_ck804_pcie_aer_ext_cap);
1632 1633
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_NVIDIA,  PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
			quirk_nvidia_ck804_pcie_aer_ext_cap);
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1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649
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);

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			dev_info(&dev->dev,
				"Disabling VIA CX700 PCI parking\n");
		}
	}

	if (pci_read_config_byte(dev, 0x72, &b) == 0) {
		if (b != 0) {
1657 1658
			/* Turn off PCI Master read caching */
			pci_write_config_byte(dev, 0x72, 0x0);
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			/* Set PCI Master Bus time-out to "1x16 PCLK" */
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			pci_write_config_byte(dev, 0x75, 0x1);
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			/* Disable "Read FIFO Timer" */
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			pci_write_config_byte(dev, 0x77, 0x0);

1666
			dev_info(&dev->dev,
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				"Disabling VIA CX700 PCI caching\n");
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		}
	}
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);

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#ifdef CONFIG_PCI_MSI
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/* 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.
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 */
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static void __init quirk_disable_all_msi(struct pci_dev *dev)
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{
1682
	pci_no_msi();
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	dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n");
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}
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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);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
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/* Disable MSI on chipsets that are known to not support it */
static void __devinit quirk_disable_msi(struct pci_dev *dev)
{
	if (dev->subordinate) {
1694 1695
		dev_warn(&dev->dev, "MSI quirk detected; "
			"subordinate MSI disabled\n");
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		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);
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/* 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)
{
1705 1706 1707 1708 1709 1710 1711 1712 1713
	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)
		{
1714
			dev_info(&dev->dev, "Found %s HT MSI Mapping\n",
1715
				flags & HT_MSI_FLAGS_ENABLE ?
1716
				"enabled" : "disabled");
1717
			return (flags & HT_MSI_FLAGS_ENABLE) != 0;
1718
		}
1719 1720 1721

		pos = pci_find_next_ht_capability(dev, pos,
						  HT_CAPTYPE_MSI_MAPPING);
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	}
	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)) {
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		dev_warn(&dev->dev, "MSI quirk detected; "
			"subordinate MSI disabled\n");
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		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);
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1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751
/* 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.
	 */
1752
	pdev = pci_get_slot(dev->bus, 0);
1753 1754
	if (!pdev)
		return;
1755
	if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
1756 1757
		dev_warn(&dev->dev, "MSI quirk detected; "
			"subordinate MSI disabled\n");
1758 1759
		dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
	}
1760
	pci_dev_put(pdev);
1761 1762 1763
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
			quirk_nvidia_ck804_msi_ht_cap);
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1765 1766
/* Force enable MSI mapping capability on HT bridges */
static void __devinit ht_enable_msi_mapping(struct pci_dev *dev)
1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784
{
	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);
	}
}
1785 1786 1787
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
			 PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
			 ht_enable_msi_mapping);
1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818

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) {
1819
			dev_info(&dev->dev, "Disabling HT MSI mapping");
1820 1821 1822 1823 1824 1825 1826 1827
			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);
1828
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk);
1829

1830 1831 1832 1833
static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
{
	dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
}
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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);
}
1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869
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);

1870
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
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			quirk_msi_intx_disable_ati_bug);
1872
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
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			quirk_msi_intx_disable_ati_bug);
1874
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
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			quirk_msi_intx_disable_ati_bug);
1876
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
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			quirk_msi_intx_disable_ati_bug);
1878
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
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			quirk_msi_intx_disable_ati_bug);
1880 1881 1882 1883 1884 1885 1886 1887

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);

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#endif /* CONFIG_PCI_MSI */