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drivers/pci/quirks.c 107 KB
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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).
   */
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  #include <linux/types.h>
  #include <linux/kernel.h>
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  #include <linux/export.h>
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  #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 <linux/dmi.h>
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  #include <linux/pci-aspm.h>
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  #include <linux/ioport.h>
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  #include <asm/dma.h>	/* isa_dma_bridge_buggy */
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  #include "pci.h"
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  /*
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   * This quirk function disables memory decoding and releases memory resources
   * of the device specified by kernel's boot parameter 'pci=resource_alignment='.
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   * It also rounds up size to specified alignment.
   * Later on, the kernel will assign page-aligned memory resource back
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   * to the device.
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   */
  static void __devinit quirk_resource_alignment(struct pci_dev *dev)
  {
  	int i;
  	struct resource *r;
  	resource_size_t align, size;
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  	u16 command;
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  	if (!pci_is_reassigndev(dev))
  		return;
  
  	if (dev->hdr_type == PCI_HEADER_TYPE_NORMAL &&
  	    (dev->class >> 8) == PCI_CLASS_BRIDGE_HOST) {
  		dev_warn(&dev->dev,
  			"Can't reassign resources to host bridge.
  ");
  		return;
  	}
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  	dev_info(&dev->dev,
  		"Disabling memory decoding and releasing memory resources.
  ");
  	pci_read_config_word(dev, PCI_COMMAND, &command);
  	command &= ~PCI_COMMAND_MEMORY;
  	pci_write_config_word(dev, PCI_COMMAND, command);
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  	align = pci_specified_resource_alignment(dev);
  	for (i=0; i < PCI_BRIDGE_RESOURCES; i++) {
  		r = &dev->resource[i];
  		if (!(r->flags & IORESOURCE_MEM))
  			continue;
  		size = resource_size(r);
  		if (size < align) {
  			size = align;
  			dev_info(&dev->dev,
  				"Rounding up size of resource #%d to %#llx.
  ",
  				i, (unsigned long long)size);
  		}
  		r->end = size - 1;
  		r->start = 0;
  	}
  	/* Need to disable bridge's resource window,
  	 * to enable the kernel to reassign new resource
  	 * window later on.
  	 */
  	if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE &&
  	    (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
  		for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
  			r = &dev->resource[i];
  			if (!(r->flags & IORESOURCE_MEM))
  				continue;
  			r->end = resource_size(r) - 1;
  			r->start = 0;
  		}
  		pci_disable_bridge_window(dev);
  	}
  }
  DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, quirk_resource_alignment);
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  /*
   * Decoding should be disabled for a PCI device during BAR sizing to avoid
   * conflict. But doing so may cause problems on host bridge and perhaps other
   * key system devices. For devices that need to have mmio decoding always-on,
   * we need to set the dev->mmio_always_on bit.
   */
  static void __devinit quirk_mmio_always_on(struct pci_dev *dev)
  {
  	if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST)
  		dev->mmio_always_on = 1;
  }
  DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_mmio_always_on);
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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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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_info(&d->dev, "PIIX3: Enabling Passive Release
  ");
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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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  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
  ");
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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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  /*
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   * Intel NM10 "TigerPoint" LPC PM1a_STS.BM_STS must be clear
   * for some HT machines to use C4 w/o hanging.
   */
  static void __devinit quirk_tigerpoint_bm_sts(struct pci_dev *dev)
  {
  	u32 pmbase;
  	u16 pm1a;
  
  	pci_read_config_dword(dev, 0x40, &pmbase);
  	pmbase = pmbase & 0xff80;
  	pm1a = inw(pmbase);
  
  	if (pm1a & 0x10) {
  		dev_info(&dev->dev, FW_BUG "TigerPoint LPC.BM_STS cleared
  ");
  		outw(0x10, pmbase);
  	}
  }
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGP_LPC, quirk_tigerpoint_bm_sts);
  
  /*
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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
  ");
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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
  ");
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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
  ");
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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
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   *	and http://www.georgebreese.com/net/software/#PCI
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   *      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;
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  	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) {
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  		/* 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;
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  		/* 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
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  	 *	both Linux and Windows this isn't enough, and we have seen
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  	 *	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
  ");
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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
  ");
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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
  ");
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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
  ");
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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) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
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  		dev_info(&dev->dev, "Limiting direct PCI/PCI transfers
  ");
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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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  /*
   * Some CS5536 BIOSes (for example, the Soekris NET5501 board w/ comBIOS
   * ver. 1.33  20070103) don't set the correct ISA PCI region header info.
   * BAR0 should be 8 bytes; instead, it may be set to something like 8k
   * (which conflicts w/ BAR1's memory range).
   */
  static void __devinit quirk_cs5536_vsa(struct pci_dev *dev)
  {
  	if (pci_resource_len(dev, 0) != 8) {
  		struct resource *res = &dev->resource[0];
  		res->end = res->start + 8 - 1;
  		dev_info(&dev->dev, "CS5536 ISA bridge bug detected "
  				"(incorrect header); workaround applied.
  ");
  	}
  }
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_cs5536_vsa);
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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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  		if (pci_claim_resource(dev, nr) == 0)
  			dev_info(&dev->dev, "quirk: %pR claimed by %s
  ",
  				 res, 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)
  {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
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  	dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb
  ");
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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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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
  ", 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;
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
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  	dev_info(&dev->dev, "%s MMIO at %04x-%04x
  ", name, base, base + size - 1);
6693e74a1   Linus Torvalds   PCI: be more verb...
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  }
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  /*
   * PIIX4 ACPI: Two IO regions pointed to by longwords at
   *	0x40 (64 bytes of ACPI registers)
08db2a701   Linus Torvalds   Fix PIIX4 SMB reg...
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   *	0x90 (16 bytes of SMB registers)
6693e74a1   Linus Torvalds   PCI: be more verb...
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   * and a few strange programmable PIIX4 device resources.
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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);
08db2a701   Linus Torvalds   Fix PIIX4 SMB reg...
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  	quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
6693e74a1   Linus Torvalds   PCI: be more verb...
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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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
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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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  #define ICH_PMBASE	0x40
  #define ICH_ACPI_CNTL	0x44
  #define  ICH4_ACPI_EN	0x10
  #define  ICH6_ACPI_EN	0x80
  #define ICH4_GPIOBASE	0x58
  #define ICH4_GPIO_CNTL	0x5c
  #define  ICH4_GPIO_EN	0x10
  #define ICH6_GPIOBASE	0x48
  #define ICH6_GPIO_CNTL	0x4c
  #define  ICH6_GPIO_EN	0x10
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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;
cdb975584   Jiri Slaby   PCI: add more che...
566
  	u8 enable;
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
567

87e3dc385   Jiri Slaby   PCI: do not creat...
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  	/*
  	 * The check for PCIBIOS_MIN_IO is to ensure we won't create a conflict
  	 * with low legacy (and fixed) ports. We don't know the decoding
  	 * priority and can't tell whether the legacy device or the one created
  	 * here is really at that address.  This happens on boards with broken
  	 * BIOSes.
  	*/
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  	pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
  	if (enable & ICH4_ACPI_EN) {
  		pci_read_config_dword(dev, ICH_PMBASE, &region);
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  		region &= PCI_BASE_ADDRESS_IO_MASK;
  		if (region >= PCIBIOS_MIN_IO)
  			quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES,
  					"ICH4 ACPI/GPIO/TCO");
cdb975584   Jiri Slaby   PCI: add more che...
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  	}
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  	pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable);
  	if (enable & ICH4_GPIO_EN) {
  		pci_read_config_dword(dev, ICH4_GPIOBASE, &region);
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  		region &= PCI_BASE_ADDRESS_IO_MASK;
  		if (region >= PCIBIOS_MIN_IO)
  			quirk_io_region(dev, region, 64,
  					PCI_BRIDGE_RESOURCES + 1, "ICH4 GPIO");
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  	}
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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894886e5d   Linus Torvalds   PCI: extend on th...
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  static void __devinit ich6_lpc_acpi_gpio(struct pci_dev *dev)
2cea752f6   Rudolf Marek   [PATCH] PCI: ICH6...
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  {
  	u32 region;
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  	u8 enable;
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  	pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
  	if (enable & ICH6_ACPI_EN) {
  		pci_read_config_dword(dev, ICH_PMBASE, &region);
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  		region &= PCI_BASE_ADDRESS_IO_MASK;
  		if (region >= PCIBIOS_MIN_IO)
  			quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES,
  					"ICH6 ACPI/GPIO/TCO");
cdb975584   Jiri Slaby   PCI: add more che...
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  	}
2cea752f6   Rudolf Marek   [PATCH] PCI: ICH6...
617

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  	pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable);
b6d95bb63   Jean Delvare   PCI: Use ICH6_GPI...
619
  	if (enable & ICH6_GPIO_EN) {
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  		pci_read_config_dword(dev, ICH6_GPIOBASE, &region);
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  		region &= PCI_BASE_ADDRESS_IO_MASK;
  		if (region >= PCIBIOS_MIN_IO)
  			quirk_io_region(dev, region, 64,
  					PCI_BRIDGE_RESOURCES + 1, "ICH6 GPIO");
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  	}
2cea752f6   Rudolf Marek   [PATCH] PCI: ICH6...
626
  }
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  static void __devinit ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize)
  {
  	u32 val;
  	u32 size, base;
  
  	pci_read_config_dword(dev, reg, &val);
  
  	/* Enabled? */
  	if (!(val & 1))
  		return;
  	base = val & 0xfffc;
  	if (dynsize) {
  		/*
  		 * This is not correct. It is 16, 32 or 64 bytes depending on
  		 * register D31:F0:ADh bits 5:4.
  		 *
  		 * But this gets us at least _part_ of it.
  		 */
  		size = 16;
  	} else {
  		size = 128;
  	}
  	base &= ~(size-1);
  
  	/* Just print it out for now. We should reserve it after more debugging */
  	dev_info(&dev->dev, "%s PIO at %04x-%04x
  ", name, base, base+size-1);
  }
  
  static void __devinit quirk_ich6_lpc(struct pci_dev *dev)
  {
  	/* Shared ACPI/GPIO decode with all ICH6+ */
  	ich6_lpc_acpi_gpio(dev);
  
  	/* ICH6-specific generic IO decode */
  	ich6_lpc_generic_decode(dev, 0x84, "LPC Generic IO decode 1", 0);
  	ich6_lpc_generic_decode(dev, 0x88, "LPC Generic IO decode 2", 1);
  }
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc);
  
  static void __devinit ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name)
  {
  	u32 val;
  	u32 mask, base;
  
  	pci_read_config_dword(dev, reg, &val);
  
  	/* Enabled? */
  	if (!(val & 1))
  		return;
  
  	/*
  	 * IO base in bits 15:2, mask in bits 23:18, both
  	 * are dword-based
  	 */
  	base = val & 0xfffc;
  	mask = (val >> 16) & 0xfc;
  	mask |= 3;
  
  	/* Just print it out for now. We should reserve it after more debugging */
  	dev_info(&dev->dev, "%s PIO at %04x (mask %04x)
  ", name, base, mask);
  }
  
  /* ICH7-10 has the same common LPC generic IO decode registers */
  static void __devinit quirk_ich7_lpc(struct pci_dev *dev)
  {
5d9c0a795   Jean Delvare   PCI: Fix typo in ...
696
  	/* We share the common ACPI/GPIO decode with ICH6 */
894886e5d   Linus Torvalds   PCI: extend on th...
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  	ich6_lpc_acpi_gpio(dev);
  
  	/* And have 4 ICH7+ generic decodes */
  	ich7_lpc_generic_decode(dev, 0x84, "ICH7 LPC Generic IO decode 1");
  	ich7_lpc_generic_decode(dev, 0x88, "ICH7 LPC Generic IO decode 2");
  	ich7_lpc_generic_decode(dev, 0x8c, "ICH7 LPC Generic IO decode 3");
  	ich7_lpc_generic_decode(dev, 0x90, "ICH7 LPC Generic IO decode 4");
  }
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich7_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich7_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich7_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich7_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich7_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich7_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich7_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich7_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich7_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich7_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich7_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich7_lpc);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_ICH10_1, quirk_ich7_lpc);
2cea752f6   Rudolf Marek   [PATCH] PCI: ICH6...
718

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
719
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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)
  {
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
725
  	u32 region;
651472fbf   Auke Kok   PCI: quirk_vt82c5...
726
  	if (dev->revision & 0x10) {
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
727
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  		pci_read_config_dword(dev, 0x48, &region);
  		region &= PCI_BASE_ADDRESS_IO_MASK;
6693e74a1   Linus Torvalds   PCI: be more verb...
729
  		quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
730
731
  	}
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
732
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C586_3,	quirk_vt82c586_acpi);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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;
02f313b2c   Meelis Roos   [PATCH] PCI: Fix ...
749
  	quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
750
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  	pci_read_config_dword(dev, 0x90, &smb);
  	smb &= PCI_BASE_ADDRESS_IO_MASK;
02f313b2c   Meelis Roos   [PATCH] PCI: Fix ...
753
  	quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
754
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
755
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C686_4,	quirk_vt82c686_acpi);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
756

6d85f29bb   Ivan Kokshaysky   [PATCH] VIA VT823...
757
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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;
6693e74a1   Linus Torvalds   PCI: be more verb...
768
  	quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
6d85f29bb   Ivan Kokshaysky   [PATCH] VIA VT823...
769
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771
  
  	pci_read_config_word(dev, 0xd0, &smb);
  	smb &= PCI_BASE_ADDRESS_IO_MASK;
6693e74a1   Linus Torvalds   PCI: be more verb...
772
  	quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
6d85f29bb   Ivan Kokshaysky   [PATCH] VIA VT823...
773
774
  }
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_8235,	quirk_vt8235_acpi);
1f56f4a2b   Gabe Black   PCI quirk: TI XIO...
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  /*
   * TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back:
   *	Disable fast back-to-back on the secondary bus segment
   */
  static void __devinit quirk_xio2000a(struct pci_dev *dev)
  {
  	struct pci_dev *pdev;
  	u16 command;
  
  	dev_warn(&dev->dev, "TI XIO2000a quirk detected; "
  		"secondary bus fast back-to-back transfers disabled
  ");
  	list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) {
  		pci_read_config_word(pdev, PCI_COMMAND, &command);
  		if (command & PCI_COMMAND_FAST_BACK)
  			pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK);
  	}
  }
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A,
  			quirk_xio2000a);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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.
   */
1597cacbe   Alan Cox   PCI: Fix multiple...
807
  static void quirk_via_ioapic(struct pci_dev *dev)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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 */
  		
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
816
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  	dev_info(&dev->dev, "%sbling VIA external APIC routing
  ",
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  	       tmp == 0 ? "Disa" : "Ena");
  
  	/* Offset 0x58: External APIC IRQ output control */
  	pci_write_config_byte (dev, 0x58, tmp);
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
823
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C686,	quirk_via_ioapic);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
824
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C686,	quirk_via_ioapic);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
825
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  /*
a1740913c   Karsten Wiese   [PATCH] via vt823...
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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.
   */
1597cacbe   Alan Cox   PCI: Fix multiple...
832
  static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
a1740913c   Karsten Wiese   [PATCH] via vt823...
833
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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)) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
839
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  		dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message
  ");
a1740913c   Karsten Wiese   [PATCH] via vt823...
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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);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
845
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_8237,		quirk_via_vt8237_bypass_apic_deassert);
a1740913c   Karsten Wiese   [PATCH] via vt823...
846
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  /*
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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
236561e5d   Alan Cox   [PATCH] PCI quirk...
853
   * noapic specified. For the moment we assume it's the erratum. We may be wrong
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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)
  {
44c10138f   Auke Kok   PCI: Change all d...
858
  	if (dev->revision >= 0x02) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
859
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  		dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try
  ");
  		dev_warn(&dev->dev, "        : booting with the \"noapic\" option
  ");
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
863
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  	}
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
865
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD,	PCI_DEVICE_ID_AMD_VIPER_7410,	quirk_amd_ioapic);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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;
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
872
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI,	PCI_ANY_ID,			quirk_ioapic_rmw);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
873
  #endif /* CONFIG_X86_IO_APIC */
d556ad4bb   Peter Oruba   PCI: add PCI-X/PC...
874
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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)
  {
aa288d4d6   Auke Kok   PCI: quirk amd_81...
880
  	if (dev->subordinate && dev->revision <= 0x12) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
881
882
883
  		dev_info(&dev->dev, "AMD8131 rev %x detected; "
  			"disabling PCI-X MMRBC
  ", dev->revision);
d556ad4bb   Peter Oruba   PCI: add PCI-X/PC...
884
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887
  		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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  /*
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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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;
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
908
909
  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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
910

09d6029f4   Daniel Drake   PCI: VIA IRQ quir...
911
912
  
  /*
1597cacbe   Alan Cox   PCI: Fix multiple...
913
   *	VIA bridges which have VLink
09d6029f4   Daniel Drake   PCI: VIA IRQ quir...
914
   */
1597cacbe   Alan Cox   PCI: Fix multiple...
915

c06bb5d49   Jean Delvare   [PATCH] Fix VIA q...
916
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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:
cb7468ef4   Jean Delvare   [PATCH] via quirk...
923
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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);
c06bb5d49   Jean Delvare   [PATCH] Fix VIA q...
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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);
09d6029f4   Daniel Drake   PCI: VIA IRQ quir...
952

1597cacbe   Alan Cox   PCI: Fix multiple...
953
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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
c06bb5d49   Jean Delvare   [PATCH] Fix VIA q...
960
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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).
1597cacbe   Alan Cox   PCI: Fix multiple...
964
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   */
  
  static void quirk_via_vlink(struct pci_dev *dev)
25be5e6cc   Len Brown   [PATCH] VIA IRQ q...
967
968
  {
  	u8 irq, new_irq;
c06bb5d49   Jean Delvare   [PATCH] Fix VIA q...
969
970
  	/* Check if we have VLink at all */
  	if (via_vlink_dev_lo == -1)
09d6029f4   Daniel Drake   PCI: VIA IRQ quir...
971
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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;
1597cacbe   Alan Cox   PCI: Fix multiple...
978
  	/* Internal device ? */
c06bb5d49   Jean Delvare   [PATCH] Fix VIA q...
979
980
  	if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
  	    PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
1597cacbe   Alan Cox   PCI: Fix multiple...
981
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  		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 */
25be5e6cc   Len Brown   [PATCH] VIA IRQ q...
985
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  	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
  	if (new_irq != irq) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
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988
989
  		dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d
  ",
  			irq, new_irq);
25be5e6cc   Len Brown   [PATCH] VIA IRQ q...
990
991
992
993
  		udelay(15);	/* unknown if delay really needed */
  		pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
  	}
  }
1597cacbe   Alan Cox   PCI: Fix multiple...
994
  DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
25be5e6cc   Len Brown   [PATCH] VIA IRQ q...
995

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
996
  /*
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
997
998
999
1000
1001
1002
1003
1004
1005
1006
   * 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);
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1007
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C597_0,	quirk_vt82c598_id);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1008
1009
1010
1011
1012
1013
1014
  
  /*
   * 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.
   */
1597cacbe   Alan Cox   PCI: Fix multiple...
1015
  static void quirk_cardbus_legacy(struct pci_dev *dev)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1016
1017
1018
1019
1020
1021
  {
  	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);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1022
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1023
1024
1025
1026
1027
1028
1029
1030
  
  /*
   * 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!
   */
1597cacbe   Alan Cox   PCI: Fix multiple...
1031
  static void quirk_amd_ordering(struct pci_dev *dev)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1032
1033
1034
1035
1036
  {
  	u32 pcic;
  	pci_read_config_dword(dev, 0x4C, &pcic);
  	if ((pcic&6)!=6) {
  		pcic |= 6;
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1037
1038
  		dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error
  ");
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1039
1040
1041
1042
1043
1044
  		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);
  	}
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1045
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD,	PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1046
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD,	PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
  
  /*
   *	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;
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1061
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD,	PCI_DEVICE_ID_DUNORD_I3000,	quirk_dunord);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
  
  /*
   * 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;
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1073
1074
  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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1075
1076
1077
1078
  
  /*
   * Common misconfiguration of the MediaGX/Geode PCI master that will
   * reduce PCI bandwidth from 70MB/s to 25MB/s.  See the GXM/GXLV/GX1
631dd1a88   Justin P. Mattock   Update broken web...
1079
   * datasheets found at http://www.national.com/analog for info on what
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1080
1081
   * these bits do.  <christer@weinigel.se>
   */
1597cacbe   Alan Cox   PCI: Fix multiple...
1082
  static void quirk_mediagx_master(struct pci_dev *dev)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1083
1084
1085
1086
1087
  {
  	u8 reg;
  	pci_read_config_byte(dev, 0x41, &reg);
  	if (reg & 2) {
  		reg &= ~2;
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1088
1089
  		dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)
  ", reg);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1090
1091
1092
                  pci_write_config_byte(dev, 0x41, reg);
  	}
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1093
1094
  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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1095
1096
  
  /*
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1097
1098
1099
1100
   *	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
   */
1597cacbe   Alan Cox   PCI: Fix multiple...
1101
  static void quirk_disable_pxb(struct pci_dev *pdev)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1102
1103
  {
  	u16 config;
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1104
  	
44c10138f   Auke Kok   PCI: Change all d...
1105
  	if (pdev->revision != 0x04)		/* Only C0 requires this */
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1106
1107
1108
1109
1110
  		return;
  	pci_read_config_word(pdev, 0x40, &config);
  	if (config & (1<<6)) {
  		config &= ~(1<<6);
  		pci_write_config_word(pdev, 0x40, config);
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1111
1112
  		dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming
  ");
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1113
1114
  	}
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1115
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82454NX,	quirk_disable_pxb);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1116
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82454NX,	quirk_disable_pxb);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1117

05a7d22b9   Crane Cai   PCI: AMD SATA IDE...
1118
  static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
ab17443a3   Conke Hu   PCI: ATI sb600 sa...
1119
  {
5deab5366   Shane Huang   ahci / atiixp / p...
1120
  	/* set SBX00/Hudson-2 SATA in IDE mode to AHCI mode */
05a7d22b9   Crane Cai   PCI: AMD SATA IDE...
1121
  	u8 tmp;
ab17443a3   Conke Hu   PCI: ATI sb600 sa...
1122

05a7d22b9   Crane Cai   PCI: AMD SATA IDE...
1123
1124
  	pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
  	if (tmp == 0x01) {
ab17443a3   Conke Hu   PCI: ATI sb600 sa...
1125
1126
1127
1128
1129
  		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);
c9f89475a   Conke Hu   Add pci class cod...
1130
  		pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
05a7d22b9   Crane Cai   PCI: AMD SATA IDE...
1131
1132
  		dev_info(&pdev->dev, "set SATA to AHCI mode
  ");
ab17443a3   Conke Hu   PCI: ATI sb600 sa...
1133
1134
  	}
  }
05a7d22b9   Crane Cai   PCI: AMD SATA IDE...
1135
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1136
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
05a7d22b9   Crane Cai   PCI: AMD SATA IDE...
1137
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1138
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
5deab5366   Shane Huang   ahci / atiixp / p...
1139
1140
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
ab17443a3   Conke Hu   PCI: ATI sb600 sa...
1141

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
  /*
   *	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);
368c73d4f   Alan Cox   PCI: quirks: fix ...
1153
  		/* PCI layer will sort out resources */
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1154
1155
  	}
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1156
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
  
  /*
   *	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))) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1168
1169
  		dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode
  ");
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1170
1171
1172
  		prog &= ~5;
  		pdev->class &= ~5;
  		pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1173
1174
  	}
  }
368c73d4f   Alan Cox   PCI: quirks: fix ...
1175
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1176

979b1791e   Alan Cox   PCI: add D3 power...
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
  /*
   * 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);
7a661c6f1   Alan Cox   PCI: More PATA qu...
1189
1190
1191
1192
1193
  /* ALi loses some register settings that we cannot then restore */
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, quirk_no_ata_d3);
  /* VIA comes back fine but we need to keep it alive or ACPI GTM failures
     occur when mode detecting */
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_no_ata_d3);
979b1791e   Alan Cox   PCI: add D3 power...
1194

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1195
1196
1197
1198
1199
1200
1201
  /* 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;
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1202
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82375,	quirk_eisa_bridge);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1203

7daa0c4f5   Johannes Goecke   [PATCH] MSI-K8T-N...
1204
1205
  
  /*
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1206
1207
1208
1209
1210
1211
1212
1213
   * 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 
d7698edca   gw.kernel@tnode.com   PCI: unhide SMBus...
1214
1215
   * becomes necessary to do this tweak in two steps -- the chosen trigger
   * is either the Host bridge (preferred) or on-board VGA controller.
9208ee828   Jean Delvare   PCI: Stop unhidin...
1216
1217
1218
1219
1220
1221
1222
   *
   * 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.
a99acc832   Jean Delvare   pci: revert SMBus...
1223
1224
1225
1226
1227
1228
   *
   * 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.
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1229
   */
9d24a81e8   Vivek Goyal   [PATCH] x86-64: p...
1230
  static int asus_hides_smbus;
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1231
1232
1233
1234
1235
1236
  
  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) {
a00db3716   Jean Delvare   [PATCH] PCI: Add ...
1237
  			case 0x8025: /* P4B-LX */
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1238
1239
1240
1241
1242
  			case 0x8070: /* P4B */
  			case 0x8088: /* P4B533 */
  			case 0x1626: /* L3C notebook */
  				asus_hides_smbus = 1;
  			}
2f2d39d28   Jean Delvare   PCI: Speed up the...
1243
  		else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1244
1245
1246
1247
1248
1249
  			switch(dev->subsystem_device) {
  			case 0x80b1: /* P4GE-V */
  			case 0x80b2: /* P4PE */
  			case 0x8093: /* P4B533-V */
  				asus_hides_smbus = 1;
  			}
2f2d39d28   Jean Delvare   PCI: Speed up the...
1250
  		else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1251
1252
1253
1254
  			switch(dev->subsystem_device) {
  			case 0x8030: /* P4T533 */
  				asus_hides_smbus = 1;
  			}
2f2d39d28   Jean Delvare   PCI: Speed up the...
1255
  		else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1256
1257
1258
1259
  			switch (dev->subsystem_device) {
  			case 0x8070: /* P4G8X Deluxe */
  				asus_hides_smbus = 1;
  			}
2f2d39d28   Jean Delvare   PCI: Speed up the...
1260
  		else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
321311af2   Jean Delvare   PCI: Unhide the S...
1261
1262
1263
1264
  			switch (dev->subsystem_device) {
  			case 0x80c9: /* PU-DLS */
  				asus_hides_smbus = 1;
  			}
2f2d39d28   Jean Delvare   PCI: Speed up the...
1265
  		else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1266
1267
1268
  			switch (dev->subsystem_device) {
  			case 0x1751: /* M2N notebook */
  			case 0x1821: /* M5N notebook */
4096ed0fc   Mats Erik Andersson   PCI: expose SMBus...
1269
  			case 0x1897: /* A6L notebook */
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1270
1271
  				asus_hides_smbus = 1;
  			}
2f2d39d28   Jean Delvare   PCI: Speed up the...
1272
  		else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1273
1274
1275
1276
1277
  			switch (dev->subsystem_device) {
  			case 0x184b: /* W1N notebook */
  			case 0x186a: /* M6Ne notebook */
  				asus_hides_smbus = 1;
  			}
2f2d39d28   Jean Delvare   PCI: Speed up the...
1278
  		else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
2e45785c5   Jean Delvare   PCI: Unhide the S...
1279
1280
1281
1282
  			switch (dev->subsystem_device) {
  			case 0x80f2: /* P4P800-X */
  				asus_hides_smbus = 1;
  			}
2f2d39d28   Jean Delvare   PCI: Speed up the...
1283
  		else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
acc06632e   Rudolf Marek   [PATCH] unhide IC...
1284
1285
  			switch (dev->subsystem_device) {
  			case 0x1882: /* M6V notebook */
2d1e1c754   Jean Delvare   [PATCH] PCI: Add ...
1286
  			case 0x1977: /* A6VA notebook */
acc06632e   Rudolf Marek   [PATCH] unhide IC...
1287
1288
  				asus_hides_smbus = 1;
  			}
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1289
1290
1291
1292
1293
1294
1295
  	} 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;
  			}
2f2d39d28   Jean Delvare   PCI: Speed up the...
1296
  		else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1297
1298
  			switch (dev->subsystem_device) {
  			case 0x12bc: /* HP D330L */
e3b1bd572   Jean Delvare   [PATCH] PCI: Add ...
1299
  			case 0x12bd: /* HP D530 */
74c574289   Michal Miroslaw   PCI quirk: HP hid...
1300
  			case 0x006a: /* HP Compaq nx9500 */
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1301
1302
  				asus_hides_smbus = 1;
  			}
677cc6443   Jean Delvare   PCI: Unhide the S...
1303
1304
1305
1306
1307
  		else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
  			switch (dev->subsystem_device) {
  			case 0x12bf: /* HP xw4100 */
  				asus_hides_smbus = 1;
  			}
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1308
1309
1310
1311
1312
1313
         } 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;
                         }
c87f883ed   Rumen Ivanov Zarev   [PATCH] PCI: Unhi...
1314
1315
1316
1317
1318
1319
  	} 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;
  			}
d7698edca   gw.kernel@tnode.com   PCI: unhide SMBus...
1320
1321
1322
1323
1324
1325
1326
1327
  		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;
  			}
8293b0f62   David O'Shea   PCI: Compaq Evo D...
1328
  		else if (dev->device == PCI_DEVICE_ID_INTEL_82801DB_2)
10260d9ab   Jean Delvare   PCI: Unhide the S...
1329
1330
1331
  			switch(dev->subsystem_device) {
  			case 0x00b8: /* Compaq Evo D510 CMT */
  			case 0x00b9: /* Compaq Evo D510 SFF */
6b5096e4d   Jean Delvare   PCI: Unhide the S...
1332
  			case 0x00ba: /* Compaq Evo D510 USDT */
8293b0f62   David O'Shea   PCI: Compaq Evo D...
1333
1334
1335
1336
1337
  				/* Motherboard doesn't have Host bridge
  				 * subvendor/subdevice IDs and on-board VGA
  				 * controller is disabled if an AGP card is
  				 * inserted, therefore checking USB UHCI
  				 * Controller #1 */
10260d9ab   Jean Delvare   PCI: Unhide the S...
1338
1339
  				asus_hides_smbus = 1;
  			}
27e468597   Krzysztof Helt   PCI: unhide the S...
1340
1341
1342
1343
1344
1345
1346
1347
  		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;
  			}
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1348
1349
  	}
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1350
1351
1352
1353
  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);
677cc6443   Jean Delvare   PCI: Unhide the S...
1354
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82875_HB,	asus_hides_smbus_hostbridge);
652c538eb   Andrew Morton   PCI: drivers/pci/...
1355
1356
1357
1358
1359
1360
1361
  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);
8293b0f62   David O'Shea   PCI: Compaq Evo D...
1362
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82801DB_2,	asus_hides_smbus_hostbridge);
27e468597   Krzysztof Helt   PCI: unhide the S...
1363
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82815_CGC,	asus_hides_smbus_hostbridge);
d7698edca   gw.kernel@tnode.com   PCI: unhide SMBus...
1364

1597cacbe   Alan Cox   PCI: Fix multiple...
1365
  static void asus_hides_smbus_lpc(struct pci_dev *dev)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
  {
  	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)
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1377
1378
  			dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x
  ", val);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1379
  		else
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1380
1381
  			dev_info(&dev->dev, "Enabled i801 SMBus device
  ");
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1382
1383
  	}
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1384
1385
1386
1387
1388
1389
1390
  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);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1391
1392
1393
1394
1395
1396
1397
  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);
1597cacbe   Alan Cox   PCI: Fix multiple...
1398

e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1399
1400
1401
  /* 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)
acc06632e   Rudolf Marek   [PATCH] unhide IC...
1402
  {
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1403
  	u32 rcba;
acc06632e   Rudolf Marek   [PATCH] unhide IC...
1404
1405
1406
  
  	if (likely(!asus_hides_smbus))
  		return;
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1407
  	WARN_ON(asus_rcba_base);
acc06632e   Rudolf Marek   [PATCH] unhide IC...
1408
  	pci_read_config_dword(dev, 0xF0, &rcba);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
  	/* 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;
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1432
1433
  	dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device
  ");
acc06632e   Rudolf Marek   [PATCH] unhide IC...
1434
  }
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1435
1436
1437
1438
1439
1440
1441
  
  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);
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1442
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH6_1,	asus_hides_smbus_lpc_ich6);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1443
1444
1445
  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);
ce007ea59   Carl-Daniel Hailfinger   [PATCH] smbus unh...
1446

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1447
1448
1449
  /*
   * SiS 96x south bridge: BIOS typically hides SMBus device...
   */
1597cacbe   Alan Cox   PCI: Fix multiple...
1450
  static void quirk_sis_96x_smbus(struct pci_dev *dev)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1451
1452
  {
  	u8 val = 0;
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1453
  	pci_read_config_byte(dev, 0x77, &val);
2f5c33b31   Mark M. Hoffman   [PATCH] i2c/pci: ...
1454
  	if (val & 0x10) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1455
1456
  		dev_info(&dev->dev, "Enabling SiS 96x SMBus
  ");
2f5c33b31   Mark M. Hoffman   [PATCH] i2c/pci: ...
1457
1458
  		pci_write_config_byte(dev, 0x77, val & ~0x10);
  	}
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1459
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1460
1461
1462
1463
  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);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1464
1465
1466
1467
  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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1468

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1469
1470
1471
1472
1473
1474
1475
1476
  /*
   * ... 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..
   */
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1477
  #define SIS_DETECT_REGISTER 0x40
1597cacbe   Alan Cox   PCI: Fix multiple...
1478
  static void quirk_sis_503(struct pci_dev *dev)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
  {
  	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;
  	}
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1490
  	/*
2f5c33b31   Mark M. Hoffman   [PATCH] i2c/pci: ...
1491
1492
1493
  	 * 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)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1494
1495
  	 */
  	dev->device = devid;
2f5c33b31   Mark M. Hoffman   [PATCH] i2c/pci: ...
1496
  	quirk_sis_96x_smbus(dev);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1497
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1498
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI,	PCI_DEVICE_ID_SI_503,		quirk_sis_503);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1499
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI,	PCI_DEVICE_ID_SI_503,		quirk_sis_503);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1500

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1501

e5548e960   Bauke Jan Douma   [PATCH] PCI: quir...
1502
1503
1504
1505
1506
1507
  /*
   * 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
   */
1597cacbe   Alan Cox   PCI: Fix multiple...
1508
  static void asus_hides_ac97_lpc(struct pci_dev *dev)
e5548e960   Bauke Jan Douma   [PATCH] PCI: quir...
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
  {
  	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)
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1526
1527
  			dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x
  ", val);
e5548e960   Bauke Jan Douma   [PATCH] PCI: quir...
1528
  		else
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1529
1530
  			dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices
  ");
e5548e960   Bauke Jan Douma   [PATCH] PCI: quir...
1531
1532
  	}
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1533
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1534
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
1597cacbe   Alan Cox   PCI: Fix multiple...
1535

779670524   Tejun Heo   [PATCH] libata: s...
1536
  #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
15e0c6943   Alan Cox   [PATCH] ide: fix ...
1537
1538
1539
1540
1541
1542
  
  /*
   *	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.
   */
5ee2ae7fb   Tejun Heo   jmicron ATA: reim...
1543
  static void quirk_jmicron_ata(struct pci_dev *pdev)
15e0c6943   Alan Cox   [PATCH] ide: fix ...
1544
  {
e34bb370d   Tejun Heo   ahci/pata_jmicron...
1545
  	u32 conf1, conf5, class;
15e0c6943   Alan Cox   [PATCH] ide: fix ...
1546
1547
1548
1549
1550
  	u8 hdr;
  
  	/* Only poke fn 0 */
  	if (PCI_FUNC(pdev->devfn))
  		return;
5ee2ae7fb   Tejun Heo   jmicron ATA: reim...
1551
1552
  	pci_read_config_dword(pdev, 0x40, &conf1);
  	pci_read_config_dword(pdev, 0x80, &conf5);
15e0c6943   Alan Cox   [PATCH] ide: fix ...
1553

5ee2ae7fb   Tejun Heo   jmicron ATA: reim...
1554
1555
1556
1557
  	conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
  	conf5 &= ~(1 << 24);  /* Clear bit 24 */
  
  	switch (pdev->device) {
4daedcfe8   Tejun Heo   ahci: add pci qui...
1558
1559
  	case PCI_DEVICE_ID_JMICRON_JMB360: /* SATA single port */
  	case PCI_DEVICE_ID_JMICRON_JMB362: /* SATA dual ports */
5b6ae5ba0   Tejun Heo   libata: more PCI ...
1560
  	case PCI_DEVICE_ID_JMICRON_JMB364: /* SATA dual ports */
5ee2ae7fb   Tejun Heo   jmicron ATA: reim...
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
  		/* 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:
5b6ae5ba0   Tejun Heo   libata: more PCI ...
1572
  	case PCI_DEVICE_ID_JMICRON_JMB369:
5ee2ae7fb   Tejun Heo   jmicron ATA: reim...
1573
1574
  		/* Enable dual function mode, AHCI on fn 0, IDE fn1 */
  		/* Set the class codes correctly and then direct IDE 0 */
3a9e3a51d   Tejun Heo   jmicron: update q...
1575
  		conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
5ee2ae7fb   Tejun Heo   jmicron ATA: reim...
1576
1577
1578
1579
1580
1581
  		break;
  
  	case PCI_DEVICE_ID_JMICRON_JMB368:
  		/* The controller should be in single function IDE mode */
  		conf1 |= 0x00C00000; /* Set 22, 23 */
  		break;
15e0c6943   Alan Cox   [PATCH] ide: fix ...
1582
  	}
5ee2ae7fb   Tejun Heo   jmicron ATA: reim...
1583
1584
1585
1586
1587
1588
1589
1590
  
  	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);
e34bb370d   Tejun Heo   ahci/pata_jmicron...
1591
1592
1593
  
  	pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
  	pdev->class = class >> 8;
15e0c6943   Alan Cox   [PATCH] ide: fix ...
1594
  }
5ee2ae7fb   Tejun Heo   jmicron ATA: reim...
1595
1596
  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);
4daedcfe8   Tejun Heo   ahci: add pci qui...
1597
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
5ee2ae7fb   Tejun Heo   jmicron ATA: reim...
1598
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
5b6ae5ba0   Tejun Heo   libata: more PCI ...
1599
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata);
5ee2ae7fb   Tejun Heo   jmicron ATA: reim...
1600
1601
1602
  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);
5b6ae5ba0   Tejun Heo   libata: more PCI ...
1603
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1604
1605
  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);
4daedcfe8   Tejun Heo   ahci: add pci qui...
1606
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1607
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
5b6ae5ba0   Tejun Heo   libata: more PCI ...
1608
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
1609
1610
1611
  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);
5b6ae5ba0   Tejun Heo   libata: more PCI ...
1612
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata);
15e0c6943   Alan Cox   [PATCH] ide: fix ...
1613
1614
  
  #endif
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
  #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]));
  	}
  
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1636
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_EESSC,	quirk_alder_ioapic);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1637
  #endif
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1638
1639
  static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
  {
0ba379ec0   Eric W. Biederman   PCI: Simplify hot...
1640
1641
  	pci_msi_off(pdev);
  	pdev->no_msi = 1;
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1642
  }
652c538eb   Andrew Morton   PCI: drivers/pci/...
1643
1644
1645
  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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1646

4602b88d9   Kristen Accardi   [PATCH] PCI: 6700...
1647
1648
1649
1650
1651
1652
1653
  
  /*
   * 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)
  {
f5f2b1312   Eric W. Biederman   [PATCH] msi: sane...
1654
  	pci_msi_off(dev);
4602b88d9   Kristen Accardi   [PATCH] PCI: 6700...
1655
  	dev->no_msi = 1;
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1656
1657
  	dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled
  ");
4602b88d9   Kristen Accardi   [PATCH] PCI: 6700...
1658
1659
1660
1661
1662
1663
  }
  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);
ffadcc2ff   Kristen Carlson Accardi   [PATCH] PCI: PCIE...
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
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1678
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1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
  /*
   * 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);
4602b88d9   Kristen Accardi   [PATCH] PCI: 6700...
1695

426b3b8d5   Stefan Assmann   pci: add quirk to...
1696
1697
  #ifdef CONFIG_X86_IO_APIC
  /*
e1d3a9084   Stefan Assmann   pci, acpi: rerout...
1698
1699
1700
1701
1702
1703
1704
   * 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)
  {
41b9eb264   Stefan Assmann   x86, pci: introdu...
1705
  	if (noioapicquirk || noioapicreroute)
e1d3a9084   Stefan Assmann   pci, acpi: rerout...
1706
1707
1708
  		return;
  
  	dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT;
fdcdaf6c4   Bjorn Helgaas   PCI: use dev_prin...
1709
1710
1711
  	dev_info(&dev->dev, "rerouting interrupts for [%04x:%04x]
  ",
  		 dev->vendor, dev->device);
e1d3a9084   Stefan Assmann   pci, acpi: rerout...
1712
  }
88d1dce3a   Olaf Dabrunz   PCI quirks: call ...
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
  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);
e1d3a9084   Stefan Assmann   pci, acpi: rerout...
1729
1730
  
  /*
426b3b8d5   Stefan Assmann   pci: add quirk to...
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
   * 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);
fdcdaf6c4   Bjorn Helgaas   PCI: use dev_prin...
1752
1753
1754
  	dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]
  ",
  		 dev->vendor, dev->device);
426b3b8d5   Stefan Assmann   pci: add quirk to...
1755
  }
88d1dce3a   Olaf Dabrunz   PCI quirks: call ...
1756
1757
  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);
772511881   Olaf Dabrunz   PCI quirks: add q...
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
  
  /*
   * 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);
fdcdaf6c4   Bjorn Helgaas   PCI: use dev_prin...
1785
1786
1787
  	dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]
  ",
  		 dev->vendor, dev->device);
772511881   Olaf Dabrunz   PCI quirks: add q...
1788
  }
88d1dce3a   Olaf Dabrunz   PCI quirks: call ...
1789
1790
  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);
542622da8   Olaf Dabrunz   PCI quirks: disab...
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
  
  /*
   * 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)
4fd8bdc56   Stefan Assmann   PCI: avoid boot i...
1802
  #define AMD_813X_REV_B1			0x12
bbe194433   Stefan Assmann   PCI: AMD 813x B2 ...
1803
  #define AMD_813X_REV_B2			0x13
542622da8   Olaf Dabrunz   PCI quirks: disab...
1804
1805
1806
1807
1808
1809
1810
  
  static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
  {
  	u32 pci_config_dword;
  
  	if (noioapicquirk)
  		return;
4fd8bdc56   Stefan Assmann   PCI: avoid boot i...
1811
1812
  	if ((dev->revision == AMD_813X_REV_B1) ||
  	    (dev->revision == AMD_813X_REV_B2))
bbe194433   Stefan Assmann   PCI: AMD 813x B2 ...
1813
  		return;
542622da8   Olaf Dabrunz   PCI quirks: disab...
1814
1815
1816
1817
  
  	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);
fdcdaf6c4   Bjorn Helgaas   PCI: use dev_prin...
1818
1819
1820
  	dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]
  ",
  		 dev->vendor, dev->device);
542622da8   Olaf Dabrunz   PCI quirks: disab...
1821
  }
4fd8bdc56   Stefan Assmann   PCI: avoid boot i...
1822
1823
1824
1825
  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_8131_BRIDGE,	quirk_disable_amd_813x_boot_interrupt);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD,	PCI_DEVICE_ID_AMD_8132_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);
542622da8   Olaf Dabrunz   PCI quirks: disab...
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
  
  #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) {
fdcdaf6c4   Bjorn Helgaas   PCI: use dev_prin...
1838
1839
1840
  		dev_info(&dev->dev, "boot interrupts on device [%04x:%04x] "
  			 "already disabled
  ", dev->vendor, dev->device);
542622da8   Olaf Dabrunz   PCI quirks: disab...
1841
1842
1843
  		return;
  	}
  	pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0);
fdcdaf6c4   Bjorn Helgaas   PCI: use dev_prin...
1844
1845
1846
  	dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]
  ",
  		 dev->vendor, dev->device);
542622da8   Olaf Dabrunz   PCI quirks: disab...
1847
  }
88d1dce3a   Olaf Dabrunz   PCI quirks: call ...
1848
1849
  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);
426b3b8d5   Stefan Assmann   pci: add quirk to...
1850
  #endif /* CONFIG_X86_IO_APIC */
33dced2ea   Sergei Shtylyov   ide: add Toshiba ...
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
  /*
   * 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);
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
  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) {
4c9c16867   Jiri Slaby   PCI quirk: don't ...
1884
1885
1886
1887
1888
  	case PCI_DEVICE_ID_NETMOS_9835:
  		/* Well, this rule doesn't hold for the following 9835 device */
  		if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
  				dev->subsystem_device == 0x0299)
  			return;
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1889
1890
  	case PCI_DEVICE_ID_NETMOS_9735:
  	case PCI_DEVICE_ID_NETMOS_9745:
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1891
1892
1893
1894
  	case PCI_DEVICE_ID_NETMOS_9845:
  	case PCI_DEVICE_ID_NETMOS_9855:
  		if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
  		    num_parallel) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1895
  			dev_info(&dev->dev, "Netmos %04x (%u parallel, "
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
  				"%u serial); changing class SERIAL to OTHER "
  				"(use parport_serial)
  ",
  				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);
16a747442   Bjorn Helgaas   PCI: quirk to dis...
1906
1907
  static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
  {
e64aeccbe   Ivan Kokshaysky   PCI: fix for quir...
1908
  	u16 command, pmcsr;
16a747442   Bjorn Helgaas   PCI: quirk to dis...
1909
1910
  	u8 __iomem *csr;
  	u8 cmd_hi;
e64aeccbe   Ivan Kokshaysky   PCI: fix for quir...
1911
  	int pm;
16a747442   Bjorn Helgaas   PCI: quirk to dis...
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
  
  	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);
16a747442   Bjorn Helgaas   PCI: quirk to dis...
1941

1bef7dc00   Benjamin Herrenschmidt   Fix bogus PCI qui...
1942
  	if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
16a747442   Bjorn Helgaas   PCI: quirk to dis...
1943
  		return;
e64aeccbe   Ivan Kokshaysky   PCI: fix for quir...
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
  	/*
  	 * 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;
  	}
1bef7dc00   Benjamin Herrenschmidt   Fix bogus PCI qui...
1954
1955
  	/* Convert from PCI bus to resource space.  */
  	csr = ioremap(pci_resource_start(dev, 0), 8);
16a747442   Bjorn Helgaas   PCI: quirk to dis...
1956
  	if (!csr) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1957
1958
  		dev_warn(&dev->dev, "Can't map e100 registers
  ");
16a747442   Bjorn Helgaas   PCI: quirk to dis...
1959
1960
1961
1962
1963
  		return;
  	}
  
  	cmd_hi = readb(csr + 3);
  	if (cmd_hi == 0) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
1964
1965
1966
  		dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; "
  			"disabling
  ");
16a747442   Bjorn Helgaas   PCI: quirk to dis...
1967
1968
1969
1970
1971
  		writeb(1, csr + 3);
  	}
  
  	iounmap(csr);
  }
4e68fc97b   Marian Balakowicz   PCI: quirk_e100_i...
1972
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
a5312e28c   Ivan Kokshaysky   [PATCH] PCI: NCR ...
1973

649426efc   Alexander Duyck   PCI: Add PCI quir...
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
  /*
   * The 82575 and 82598 may experience data corruption issues when transitioning
   * out of L0S.  To prevent this we need to disable L0S on the pci-e link
   */
  static void __devinit quirk_disable_aspm_l0s(struct pci_dev *dev)
  {
  	dev_info(&dev->dev, "Disabling L0s
  ");
  	pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
  }
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
a5312e28c   Ivan Kokshaysky   [PATCH] PCI: NCR ...
1998
1999
2000
2001
2002
2003
2004
  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) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
2005
2006
  		dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class
  ");
a5312e28c   Ivan Kokshaysky   [PATCH] PCI: NCR ...
2007
2008
2009
2010
  		dev->class = PCI_CLASS_STORAGE_SCSI;
  	}
  }
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
9d265124d   Daniel Yeisley   [PATCH] PCI Quirk...
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
  /* 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) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
2022
2023
  		dev_info(&dev->dev, "Enable I/O Space to 1KB granularity
  ");
9d265124d   Daniel Yeisley   [PATCH] PCI Quirk...
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
  
  		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);
15a260d53   Daniel Yeisley   PCI Quirk: 1k I/O...
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
  /* 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) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
2054
2055
  			dev_info(&dev->dev, "Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1KB granularity
  ",
15a260d53   Daniel Yeisley   PCI Quirk: 1k I/O...
2056
2057
2058
2059
2060
2061
  				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);
cf34a8e07   Brice Goglin   [PATCH] PCI: nVid...
2062
2063
2064
2065
  /* 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.
   */
1597cacbe   Alan Cox   PCI: Fix multiple...
2066
  static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
cf34a8e07   Brice Goglin   [PATCH] PCI: nVid...
2067
2068
2069
2070
2071
  {
  	uint8_t b;
  	if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
  		if (!(b & 0x20)) {
  			pci_write_config_byte(dev, 0xf41, b | 0x20);
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
2072
2073
2074
  			dev_info(&dev->dev,
  			       "Linking AER extended capability
  ");
cf34a8e07   Brice Goglin   [PATCH] PCI: nVid...
2075
2076
2077
2078
2079
  		}
  	}
  }
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA,  PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
  			quirk_nvidia_ck804_pcie_aer_ext_cap);
e1a2a51e6   Rafael J. Wysocki   Suspend/Resume bu...
2080
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA,  PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1597cacbe   Alan Cox   PCI: Fix multiple...
2081
  			quirk_nvidia_ck804_pcie_aer_ext_cap);
cf34a8e07   Brice Goglin   [PATCH] PCI: nVid...
2082

53a9bf426   Tim Yamin   PCI: VIA CX700 qu...
2083
2084
2085
2086
2087
  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
ca8463926   Tim Yamin   PCI quirk: only a...
2088
2089
2090
2091
2092
  	 * bus leading to USB2.0 packet loss.
  	 *
  	 * This quirk is only enabled if a second (on the external PCI bus)
  	 * VT6212L is found -- the CX700 core itself also contains a USB
  	 * host controller with the same PCI ID as the VT6212L.
53a9bf426   Tim Yamin   PCI: VIA CX700 qu...
2093
  	 */
ca8463926   Tim Yamin   PCI quirk: only a...
2094
2095
2096
  	/* Count VT6212L instances */
  	struct pci_dev *p = pci_get_device(PCI_VENDOR_ID_VIA,
  		PCI_DEVICE_ID_VIA_8235_USB_2, NULL);
53a9bf426   Tim Yamin   PCI: VIA CX700 qu...
2097
  	uint8_t b;
ca8463926   Tim Yamin   PCI quirk: only a...
2098
2099
2100
2101
2102
2103
2104
  
  	/* p should contain the first (internal) VT6212L -- see if we have
  	   an external one by searching again */
  	p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235_USB_2, p);
  	if (!p)
  		return;
  	pci_dev_put(p);
53a9bf426   Tim Yamin   PCI: VIA CX700 qu...
2105
2106
2107
2108
  	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);
bc0432745   Tim Yamin   PCI: Update VIA C...
2109
2110
2111
2112
2113
2114
2115
2116
  			dev_info(&dev->dev,
  				"Disabling VIA CX700 PCI parking
  ");
  		}
  	}
  
  	if (pci_read_config_byte(dev, 0x72, &b) == 0) {
  		if (b != 0) {
53a9bf426   Tim Yamin   PCI: VIA CX700 qu...
2117
2118
  			/* Turn off PCI Master read caching */
  			pci_write_config_byte(dev, 0x72, 0x0);
bc0432745   Tim Yamin   PCI: Update VIA C...
2119
2120
  
  			/* Set PCI Master Bus time-out to "1x16 PCLK" */
53a9bf426   Tim Yamin   PCI: VIA CX700 qu...
2121
  			pci_write_config_byte(dev, 0x75, 0x1);
bc0432745   Tim Yamin   PCI: Update VIA C...
2122
2123
  
  			/* Disable "Read FIFO Timer" */
53a9bf426   Tim Yamin   PCI: VIA CX700 qu...
2124
  			pci_write_config_byte(dev, 0x77, 0x0);
d6505a523   Bjorn Helgaas   PCI: use dev_prin...
2125
  			dev_info(&dev->dev,
bc0432745   Tim Yamin   PCI: Update VIA C...
2126
2127
  				"Disabling VIA CX700 PCI caching
  ");
53a9bf426   Tim Yamin   PCI: VIA CX700 qu...
2128
2129
2130
  		}
  	}
  }
ca8463926   Tim Yamin   PCI quirk: only a...
2131
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
53a9bf426   Tim Yamin   PCI: VIA CX700 qu...
2132

99cb233d6   Benjamin Li   PCI: Limit VPD re...
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
  /*
   * 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)
  {
9d82d8eae   Eric Dumazet   PCI: add Broadcom...
2146
  	/*
35405f256   Dean Hildebrand   PCI: Limit VPD le...
2147
2148
  	 * Only disable the VPD capability for 5706, 5706S, 5708,
  	 * 5708S and 5709 rev. A
9d82d8eae   Eric Dumazet   PCI: add Broadcom...
2149
  	 */
99cb233d6   Benjamin Li   PCI: Limit VPD re...
2150
  	if ((dev->device == PCI_DEVICE_ID_NX2_5706) ||
35405f256   Dean Hildebrand   PCI: Limit VPD le...
2151
  	    (dev->device == PCI_DEVICE_ID_NX2_5706S) ||
99cb233d6   Benjamin Li   PCI: Limit VPD re...
2152
  	    (dev->device == PCI_DEVICE_ID_NX2_5708) ||
9d82d8eae   Eric Dumazet   PCI: add Broadcom...
2153
  	    (dev->device == PCI_DEVICE_ID_NX2_5708S) ||
99cb233d6   Benjamin Li   PCI: Limit VPD re...
2154
2155
2156
2157
2158
2159
  	    ((dev->device == PCI_DEVICE_ID_NX2_5709) &&
  	     (dev->revision & 0xf0) == 0x0)) {
  		if (dev->vpd)
  			dev->vpd->len = 0x80;
  	}
  }
bffadffd4   Yu Zhao   PCI: fix VPD limi...
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
  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);
99cb233d6   Benjamin Li   PCI: Limit VPD re...
2178

26c56dc0c   Michal Miroslaw   PCI quirk: unhide...
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
  /* Originally in EDAC sources for i82875P:
   * Intel tells BIOS developers to hide device 6 which
   * configures the overflow device access containing
   * the DRBs - this is where we expose device 6.
   * http://www.x86-secret.com/articles/tweak/pat/patsecrets-2.htm
   */
  static void __devinit quirk_unhide_mch_dev6(struct pci_dev *dev)
  {
  	u8 reg;
  
  	if (pci_read_config_byte(dev, 0xF4, &reg) == 0 && !(reg & 0x02)) {
  		dev_info(&dev->dev, "Enabling MCH 'Overflow' Device
  ");
  		pci_write_config_byte(dev, 0xF4, reg | 0x02);
  	}
  }
  
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB,
  			quirk_unhide_mch_dev6);
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB,
  			quirk_unhide_mch_dev6);
f02cbbe65   Chris Metcalf   pci root complex:...
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
  #ifdef CONFIG_TILE
  /*
   * The Tilera TILEmpower platform needs to set the link speed
   * to 2.5GT(Giga-Transfers)/s (Gen 1). The default link speed
   * setting is 5GT/s (Gen 2). 0x98 is the Link Control2 PCIe
   * capability register of the PEX8624 PCIe switch. The switch
   * supports link speed auto negotiation, but falsely sets
   * the link speed to 5GT/s.
   */
  static void __devinit quirk_tile_plx_gen1(struct pci_dev *dev)
  {
  	if (tile_plx_gen1) {
  		pci_write_config_dword(dev, 0x98, 0x1);
  		mdelay(50);
  	}
  }
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8624, quirk_tile_plx_gen1);
  #endif /* CONFIG_TILE */
26c56dc0c   Michal Miroslaw   PCI quirk: unhide...
2218

3f79e107f   Brice Goglin   MSI: Cleanup exis...
2219
  #ifdef CONFIG_PCI_MSI
ebdf7d399   Tejun Heo   pci-quirks: fix M...
2220
2221
2222
2223
2224
  /* 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.
3f79e107f   Brice Goglin   MSI: Cleanup exis...
2225
   */
ebdf7d399   Tejun Heo   pci-quirks: fix M...
2226
  static void __init quirk_disable_all_msi(struct pci_dev *dev)
3f79e107f   Brice Goglin   MSI: Cleanup exis...
2227
  {
88187dfa4   Michael Ellerman   MSI: Replace pci_...
2228
  	pci_no_msi();
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
2229
2230
  	dev_warn(&dev->dev, "MSI quirk detected; MSI disabled
  ");
3f79e107f   Brice Goglin   MSI: Cleanup exis...
2231
  }
ebdf7d399   Tejun Heo   pci-quirks: fix M...
2232
2233
2234
  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);
66d715c95   Tejun Heo   pci: VT3336 can't...
2235
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
184b812f7   Jay Cliburn   PCI: quirk disabl...
2236
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
162dedd39   Thomas Renninger   PCI quirk: disabl...
2237
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi);
549e15611   Tejun Heo   PCI: disable MSI ...
2238
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi);
3f79e107f   Brice Goglin   MSI: Cleanup exis...
2239
2240
2241
2242
2243
  
  /* Disable MSI on chipsets that are known to not support it */
  static void __devinit quirk_disable_msi(struct pci_dev *dev)
  {
  	if (dev->subordinate) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
2244
2245
2246
  		dev_warn(&dev->dev, "MSI quirk detected; "
  			"subordinate MSI disabled
  ");
3f79e107f   Brice Goglin   MSI: Cleanup exis...
2247
2248
2249
2250
  		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);
134b34508   Matthew Wilcox   PCI quirk: Disabl...
2251
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0xa238, quirk_disable_msi);
9313ff450   Alex Deucher   PCI quirks: disab...
2252
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x5a3f, quirk_disable_msi);
6397c75cb   Brice Goglin   MSI: Blacklist PC...
2253

aff613697   Clemens Ladisch   PCI quirk: AMD 78...
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
  /*
   * The APC bridge device in AMD 780 family northbridges has some random
   * OEM subsystem ID in its vendor ID register (erratum 18), so instead
   * we use the possible vendor/device IDs of the host bridge for the
   * declared quirk, and search for the APC bridge by slot number.
   */
  static void __devinit quirk_amd_780_apc_msi(struct pci_dev *host_bridge)
  {
  	struct pci_dev *apc_bridge;
  
  	apc_bridge = pci_get_slot(host_bridge->bus, PCI_DEVFN(1, 0));
  	if (apc_bridge) {
  		if (apc_bridge->device == 0x9602)
  			quirk_disable_msi(apc_bridge);
  		pci_dev_put(apc_bridge);
  	}
  }
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9600, quirk_amd_780_apc_msi);
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9601, quirk_amd_780_apc_msi);
6397c75cb   Brice Goglin   MSI: Blacklist PC...
2273
2274
2275
2276
  /* 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)
  {
7a380507c   Michael Ellerman   PCI: Use pci_find...
2277
2278
2279
2280
2281
2282
2283
2284
2285
  	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)
  		{
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
2286
2287
  			dev_info(&dev->dev, "Found %s HT MSI Mapping
  ",
7a380507c   Michael Ellerman   PCI: Use pci_find...
2288
  				flags & HT_MSI_FLAGS_ENABLE ?
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
2289
  				"enabled" : "disabled");
7a380507c   Michael Ellerman   PCI: Use pci_find...
2290
  			return (flags & HT_MSI_FLAGS_ENABLE) != 0;
6397c75cb   Brice Goglin   MSI: Blacklist PC...
2291
  		}
7a380507c   Michael Ellerman   PCI: Use pci_find...
2292
2293
2294
  
  		pos = pci_find_next_ht_capability(dev, pos,
  						  HT_CAPTYPE_MSI_MAPPING);
6397c75cb   Brice Goglin   MSI: Blacklist PC...
2295
2296
2297
2298
2299
2300
2301
2302
  	}
  	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)) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
2303
2304
2305
  		dev_warn(&dev->dev, "MSI quirk detected; "
  			"subordinate MSI disabled
  ");
6397c75cb   Brice Goglin   MSI: Blacklist PC...
2306
2307
2308
2309
2310
  		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);
6bae1d96c   Sebastien Dugue   PCI: quirk: enabl...
2311

6397c75cb   Brice Goglin   MSI: Blacklist PC...
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
  /* 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.
  	 */
11f242f04   Alan Cox   PCI: quirks: swit...
2325
  	pdev = pci_get_slot(dev->bus, 0);
9ac0ce859   Jesper Juhl   PCI: Be a bit def...
2326
2327
  	if (!pdev)
  		return;
0c875c286   David Rientjes   PCI quirks: remov...
2328
  	if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
f0fda801d   bjorn.helgaas@hp.com   PCI: use dev_prin...
2329
2330
2331
  		dev_warn(&dev->dev, "MSI quirk detected; "
  			"subordinate MSI disabled
  ");
6397c75cb   Brice Goglin   MSI: Blacklist PC...
2332
2333
  		dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
  	}
11f242f04   Alan Cox   PCI: quirks: swit...
2334
  	pci_dev_put(pdev);
6397c75cb   Brice Goglin   MSI: Blacklist PC...
2335
2336
2337
  }
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
  			quirk_nvidia_ck804_msi_ht_cap);
ba698ad4b   David Miller   PCI: Add quirk fo...
2338

415b6d0e8   Bjorn Helgaas   PCI: consolidate ...
2339
2340
  /* Force enable MSI mapping capability on HT bridges */
  static void __devinit ht_enable_msi_mapping(struct pci_dev *dev)
9dc625e72   Peer Chen   PCI: quirks: set ...
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
  {
  	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
  ");
  
  			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);
  	}
  }
415b6d0e8   Bjorn Helgaas   PCI: consolidate ...
2360
2361
2362
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
  			 PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
  			 ht_enable_msi_mapping);
9dc625e72   Peer Chen   PCI: quirks: set ...
2363

e0ae4f550   Yinghai Lu   PCI quirk: enable...
2364
2365
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
  			 ht_enable_msi_mapping);
e4146bb90   Ben Hutchings   PCI: Disable MSI ...
2366
  /* The P5N32-SLI motherboards from Asus have a problem with msi
75e07fc3d   Andreas Petlund   pci: Added quirk ...
2367
2368
2369
2370
2371
   * 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)
  {
9251bac97   Jean Delvare   PCI: Don't use dm...
2372
2373
2374
2375
2376
  	const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
  
  	if (board_name &&
  	    (strstr(board_name, "P5N32-SLI PREMIUM") ||
  	     strstr(board_name, "P5N32-E SLI"))) {
75e07fc3d   Andreas Petlund   pci: Added quirk ...
2377
  		dev_info(&dev->dev,
e4146bb90   Ben Hutchings   PCI: Disable MSI ...
2378
2379
  			 "Disabling msi for MCP55 NIC on P5N32-SLI
  ");
75e07fc3d   Andreas Petlund   pci: Added quirk ...
2380
2381
2382
2383
2384
2385
  		dev->no_msi = 1;
  	}
  }
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
  			PCI_DEVICE_ID_NVIDIA_NVENET_15,
  			nvenet_msi_disable);
66db60eaf   Neil Horman   PCI: add quirk fo...
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
  /*
   * Some versions of the MCP55 bridge from nvidia have a legacy irq routing
   * config register.  This register controls the routing of legacy interrupts
   * from devices that route through the MCP55.  If this register is misprogramed
   * interrupts are only sent to the bsp, unlike conventional systems where the
   * irq is broadxast to all online cpus.  Not having this register set
   * properly prevents kdump from booting up properly, so lets make sure that
   * we have it set correctly.
   * Note this is an undocumented register.
   */
  static void __devinit nvbridge_check_legacy_irq_routing(struct pci_dev *dev)
  {
  	u32 cfg;
49c2fa08a   Neil Horman   PCI: Update MCP55...
2399
2400
  	if (!pci_find_capability(dev, PCI_CAP_ID_HT))
  		return;
66db60eaf   Neil Horman   PCI: add quirk fo...
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
  	pci_read_config_dword(dev, 0x74, &cfg);
  
  	if (cfg & ((1 << 2) | (1 << 15))) {
  		printk(KERN_INFO "Rewriting irq routing register on MCP55
  ");
  		cfg &= ~((1 << 2) | (1 << 15));
  		pci_write_config_dword(dev, 0x74, cfg);
  	}
  }
  
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
  			PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V0,
  			nvbridge_check_legacy_irq_routing);
  
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
  			PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V4,
  			nvbridge_check_legacy_irq_routing);
de7453065   Yinghai Lu   PCI: don't enable...
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
  static int __devinit ht_check_msi_mapping(struct pci_dev *dev)
  {
  	int pos, ttl = 48;
  	int found = 0;
  
  	/* check if there is HT MSI cap or enabled on this device */
  	pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  	while (pos && ttl--) {
  		u8 flags;
  
  		if (found < 1)
  			found = 1;
  		if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
  					 &flags) == 0) {
  			if (flags & HT_MSI_FLAGS_ENABLE) {
  				if (found < 2) {
  					found = 2;
  					break;
  				}
  			}
  		}
  		pos = pci_find_next_ht_capability(dev, pos,
  						  HT_CAPTYPE_MSI_MAPPING);
  	}
  
  	return found;
  }
  
  static int __devinit host_bridge_with_leaf(struct pci_dev *host_bridge)
  {
  	struct pci_dev *dev;
  	int pos;
  	int i, dev_no;
  	int found = 0;
  
  	dev_no = host_bridge->devfn >> 3;
  	for (i = dev_no + 1; i < 0x20; i++) {
  		dev = pci_get_slot(host_bridge->bus, PCI_DEVFN(i, 0));
  		if (!dev)
  			continue;
  
  		/* found next host bridge ?*/
  		pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
  		if (pos != 0) {
  			pci_dev_put(dev);
  			break;
  		}
  
  		if (ht_check_msi_mapping(dev)) {
  			found = 1;
  			pci_dev_put(dev);
  			break;
  		}
  		pci_dev_put(dev);
  	}
  
  	return found;
  }
eeafda70b   Yinghai Lu   PCI: fix HT MSI m...
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
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2487
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2489
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2492
2493
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2495
2496
2497
2498
2499
2500
2501
  #define PCI_HT_CAP_SLAVE_CTRL0     4    /* link control */
  #define PCI_HT_CAP_SLAVE_CTRL1     8    /* link control to */
  
  static int __devinit is_end_of_ht_chain(struct pci_dev *dev)
  {
  	int pos, ctrl_off;
  	int end = 0;
  	u16 flags, ctrl;
  
  	pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
  
  	if (!pos)
  		goto out;
  
  	pci_read_config_word(dev, pos + PCI_CAP_FLAGS, &flags);
  
  	ctrl_off = ((flags >> 10) & 1) ?
  			PCI_HT_CAP_SLAVE_CTRL0 : PCI_HT_CAP_SLAVE_CTRL1;
  	pci_read_config_word(dev, pos + ctrl_off, &ctrl);
  
  	if (ctrl & (1 << 6))
  		end = 1;
  
  out:
  	return end;
  }
1dec6b054   Yinghai Lu   PCI: don't enable...
2502
  static void __devinit nv_ht_enable_msi_mapping(struct pci_dev *dev)
9dc625e72   Peer Chen   PCI: quirks: set ...
2503
2504
  {
  	struct pci_dev *host_bridge;
1dec6b054   Yinghai Lu   PCI: don't enable...
2505
2506
2507
2508
2509
2510
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2512
2513
2514
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2516
2517
2518
2519
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2521
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2523
2524
  	int pos;
  	int i, dev_no;
  	int found = 0;
  
  	dev_no = dev->devfn >> 3;
  	for (i = dev_no; i >= 0; i--) {
  		host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0));
  		if (!host_bridge)
  			continue;
  
  		pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
  		if (pos != 0) {
  			found = 1;
  			break;
  		}
  		pci_dev_put(host_bridge);
  	}
  
  	if (!found)
  		return;
eeafda70b   Yinghai Lu   PCI: fix HT MSI m...
2525
2526
2527
  	/* don't enable end_device/host_bridge with leaf directly here */
  	if (host_bridge == dev && is_end_of_ht_chain(host_bridge) &&
  	    host_bridge_with_leaf(host_bridge))
de7453065   Yinghai Lu   PCI: don't enable...
2528
  		goto out;
1dec6b054   Yinghai Lu   PCI: don't enable...
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
  	/* root did that ! */
  	if (msi_ht_cap_enabled(host_bridge))
  		goto out;
  
  	ht_enable_msi_mapping(dev);
  
  out:
  	pci_dev_put(host_bridge);
  }
  
  static void __devinit ht_disable_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) {
6a958d5b2   Prakash Punnoor   pci: Fix typo in ...
2549
2550
  			dev_info(&dev->dev, "Disabling HT MSI Mapping
  ");
1dec6b054   Yinghai Lu   PCI: don't enable...
2551
2552
2553
2554
2555
2556
2557
2558
  
  			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);
  	}
  }
de7453065   Yinghai Lu   PCI: don't enable...
2559
  static void __devinit __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all)
1dec6b054   Yinghai Lu   PCI: don't enable...
2560
2561
2562
2563
  {
  	struct pci_dev *host_bridge;
  	int pos;
  	int found;
3d2a53180   Rafael J. Wysocki   PCI: Do not run N...
2564
2565
  	if (!pci_msi_enabled())
  		return;
1dec6b054   Yinghai Lu   PCI: don't enable...
2566
2567
2568
2569
2570
2571
  	/* check if there is HT MSI cap or enabled on this device */
  	found = ht_check_msi_mapping(dev);
  
  	/* no HT MSI CAP */
  	if (found == 0)
  		return;
9dc625e72   Peer Chen   PCI: quirks: set ...
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
  
  	/*
  	 * 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
  ");
  		return;
  	}
  
  	pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
  	if (pos != 0) {
  		/* Host bridge is to HT */
1dec6b054   Yinghai Lu   PCI: don't enable...
2588
2589
  		if (found == 1) {
  			/* it is not enabled, try to enable it */
de7453065   Yinghai Lu   PCI: don't enable...
2590
2591
2592
2593
  			if (all)
  				ht_enable_msi_mapping(dev);
  			else
  				nv_ht_enable_msi_mapping(dev);
1dec6b054   Yinghai Lu   PCI: don't enable...
2594
  		}
9dc625e72   Peer Chen   PCI: quirks: set ...
2595
2596
  		return;
  	}
1dec6b054   Yinghai Lu   PCI: don't enable...
2597
2598
2599
  	/* HT MSI is not enabled */
  	if (found == 1)
  		return;
9dc625e72   Peer Chen   PCI: quirks: set ...
2600

1dec6b054   Yinghai Lu   PCI: don't enable...
2601
2602
  	/* Host bridge is not to HT, disable HT MSI mapping on this device */
  	ht_disable_msi_mapping(dev);
9dc625e72   Peer Chen   PCI: quirks: set ...
2603
  }
de7453065   Yinghai Lu   PCI: don't enable...
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
  
  static void __devinit nv_msi_ht_cap_quirk_all(struct pci_dev *dev)
  {
  	return __nv_msi_ht_cap_quirk(dev, 1);
  }
  
  static void __devinit nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev)
  {
  	return __nv_msi_ht_cap_quirk(dev, 0);
  }
  
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
6dab62ee5   Tejun Heo   PCI: apply nv_msi...
2616
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
de7453065   Yinghai Lu   PCI: don't enable...
2617
2618
  
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
6dab62ee5   Tejun Heo   PCI: apply nv_msi...
2619
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
9dc625e72   Peer Chen   PCI: quirks: set ...
2620

ba698ad4b   David Miller   PCI: Add quirk fo...
2621
2622
2623
2624
  static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
  {
  	dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
  }
4600c9d74   Shane Huang   PCI: modify SB700...
2625
2626
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2641
  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);
  }
ba698ad4b   David Miller   PCI: Add quirk fo...
2642
2643
2644
2645
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2647
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2649
2650
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2659
  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);
bc38b411f   David Miller   PCI: Add MSI INTX...
2660
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
4600c9d74   Shane Huang   PCI: modify SB700...
2661
  			quirk_msi_intx_disable_ati_bug);
bc38b411f   David Miller   PCI: Add MSI INTX...
2662
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
4600c9d74   Shane Huang   PCI: modify SB700...
2663
  			quirk_msi_intx_disable_ati_bug);
bc38b411f   David Miller   PCI: Add MSI INTX...
2664
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
4600c9d74   Shane Huang   PCI: modify SB700...
2665
  			quirk_msi_intx_disable_ati_bug);
bc38b411f   David Miller   PCI: Add MSI INTX...
2666
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
4600c9d74   Shane Huang   PCI: modify SB700...
2667
  			quirk_msi_intx_disable_ati_bug);
bc38b411f   David Miller   PCI: Add MSI INTX...
2668
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
4600c9d74   Shane Huang   PCI: modify SB700...
2669
  			quirk_msi_intx_disable_ati_bug);
bc38b411f   David Miller   PCI: Add MSI INTX...
2670
2671
2672
2673
2674
2675
2676
  
  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);
3f79e107f   Brice Goglin   MSI: Cleanup exis...
2677
  #endif /* CONFIG_PCI_MSI */
3d1373102   Thomas Petazzoni   PCI: allow quirks...
2678

3322340a9   Felix Radensky   PCI: Allow manual...
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
  /* Allow manual resource allocation for PCI hotplug bridges
   * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For
   * some PCI-PCI hotplug bridges, like PLX 6254 (former HINT HB6),
   * kernel fails to allocate resources when hotplug device is 
   * inserted and PCI bus is rescanned.
   */
  static void __devinit quirk_hotplug_bridge(struct pci_dev *dev)
  {
  	dev->is_hotplug_bridge = 1;
  }
  
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0020, quirk_hotplug_bridge);
03cd8f7eb   Maxim Levitsky   ricoh_mmc: port f...
2691
2692
2693
  /*
   * This is a quirk for the Ricoh MMC controller found as a part of
   * some mulifunction chips.
25985edce   Lucas De Marchi   Fix common misspe...
2694
   * This is very similar and based on the ricoh_mmc driver written by
03cd8f7eb   Maxim Levitsky   ricoh_mmc: port f...
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
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2745
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2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
   * Philip Langdale. Thank you for these magic sequences.
   *
   * These chips implement the four main memory card controllers (SD, MMC, MS, xD)
   * and one or both of cardbus or firewire.
   *
   * It happens that they implement SD and MMC
   * support as separate controllers (and PCI functions). The linux SDHCI
   * driver supports MMC cards but the chip detects MMC cards in hardware
   * and directs them to the MMC controller - so the SDHCI driver never sees
   * them.
   *
   * To get around this, we must disable the useless MMC controller.
   * At that point, the SDHCI controller will start seeing them
   * It seems to be the case that the relevant PCI registers to deactivate the
   * MMC controller live on PCI function 0, which might be the cardbus controller
   * or the firewire controller, depending on the particular chip in question
   *
   * This has to be done early, because as soon as we disable the MMC controller
   * other pci functions shift up one level, e.g. function #2 becomes function
   * #1, and this will confuse the pci core.
   */
  
  #ifdef CONFIG_MMC_RICOH_MMC
  static void ricoh_mmc_fixup_rl5c476(struct pci_dev *dev)
  {
  	/* disable via cardbus interface */
  	u8 write_enable;
  	u8 write_target;
  	u8 disable;
  
  	/* disable must be done via function #0 */
  	if (PCI_FUNC(dev->devfn))
  		return;
  
  	pci_read_config_byte(dev, 0xB7, &disable);
  	if (disable & 0x02)
  		return;
  
  	pci_read_config_byte(dev, 0x8E, &write_enable);
  	pci_write_config_byte(dev, 0x8E, 0xAA);
  	pci_read_config_byte(dev, 0x8D, &write_target);
  	pci_write_config_byte(dev, 0x8D, 0xB7);
  	pci_write_config_byte(dev, 0xB7, disable | 0x02);
  	pci_write_config_byte(dev, 0x8E, write_enable);
  	pci_write_config_byte(dev, 0x8D, write_target);
  
  	dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via cardbus function)
  ");
  	dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller
  ");
  }
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476);
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476);
  
  static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev)
  {
  	/* disable via firewire interface */
  	u8 write_enable;
  	u8 disable;
  
  	/* disable must be done via function #0 */
  	if (PCI_FUNC(dev->devfn))
  		return;
15bed0f2f   Manoj Iyer   mmc: Added quirks...
2758
2759
2760
2761
2762
2763
2764
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2766
2767
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2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
  	/*
  	 * RICOH 0xe823 SD/MMC card reader fails to recognize
  	 * certain types of SD/MMC cards. Lowering the SD base
  	 * clock frequency from 200Mhz to 50Mhz fixes this issue.
  	 *
  	 * 0x150 - SD2.0 mode enable for changing base clock
  	 *	   frequency to 50Mhz
  	 * 0xe1  - Base clock frequency
  	 * 0x32  - 50Mhz new clock frequency
  	 * 0xf9  - Key register for 0x150
  	 * 0xfc  - key register for 0xe1
  	 */
  	if (dev->device == PCI_DEVICE_ID_RICOH_R5CE823) {
  		pci_write_config_byte(dev, 0xf9, 0xfc);
  		pci_write_config_byte(dev, 0x150, 0x10);
  		pci_write_config_byte(dev, 0xf9, 0x00);
  		pci_write_config_byte(dev, 0xfc, 0x01);
  		pci_write_config_byte(dev, 0xe1, 0x32);
  		pci_write_config_byte(dev, 0xfc, 0x00);
  
  		dev_notice(&dev->dev, "MMC controller base frequency changed to 50Mhz.
  ");
  	}
3e309cdf0   Josh Boyer   PCI quirk: mmc: A...
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
  
  	pci_read_config_byte(dev, 0xCB, &disable);
  
  	if (disable & 0x02)
  		return;
  
  	pci_read_config_byte(dev, 0xCA, &write_enable);
  	pci_write_config_byte(dev, 0xCA, 0x57);
  	pci_write_config_byte(dev, 0xCB, disable | 0x02);
  	pci_write_config_byte(dev, 0xCA, write_enable);
  
  	dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via firewire function)
  ");
  	dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller
  ");
03cd8f7eb   Maxim Levitsky   ricoh_mmc: port f...
2796
2797
2798
  }
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
be98ca652   Manoj Iyer   mmc: Add PCI fixu...
2799
2800
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
  DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
03cd8f7eb   Maxim Levitsky   ricoh_mmc: port f...
2801
  #endif /*CONFIG_MMC_RICOH_MMC*/
d3f138106   Suresh Siddha   iommu: Rename the...
2802
  #ifdef CONFIG_DMAR_TABLE
254e42006   Suresh Siddha   x86, vt-d: Quirk ...
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
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2820
2821
2822
2823
2824
  #define VTUNCERRMSK_REG	0x1ac
  #define VTD_MSK_SPEC_ERRORS	(1 << 31)
  /*
   * This is a quirk for masking vt-d spec defined errors to platform error
   * handling logic. With out this, platforms using Intel 7500, 5500 chipsets
   * (and the derivative chipsets like X58 etc) seem to generate NMI/SMI (based
   * on the RAS config settings of the platform) when a vt-d fault happens.
   * The resulting SMI caused the system to hang.
   *
   * VT-d spec related errors are already handled by the VT-d OS code, so no
   * need to report the same error through other channels.
   */
  static void vtd_mask_spec_errors(struct pci_dev *dev)
  {
  	u32 word;
  
  	pci_read_config_dword(dev, VTUNCERRMSK_REG, &word);
  	pci_write_config_dword(dev, VTUNCERRMSK_REG, word | VTD_MSK_SPEC_ERRORS);
  }
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors);
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors);
  #endif
03cd8f7eb   Maxim Levitsky   ricoh_mmc: port f...
2825

63c440807   Hemant Pedanekar   PCI: Add quirk fo...
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
  static void __devinit fixup_ti816x_class(struct pci_dev* dev)
  {
  	/* TI 816x devices do not have class code set when in PCIe boot mode */
  	if (dev->class == PCI_CLASS_NOT_DEFINED) {
  		dev_info(&dev->dev, "Setting PCI class for 816x PCIe device
  ");
  		dev->class = PCI_CLASS_MULTIMEDIA_VIDEO;
  	}
  }
  DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_TI, 0xb800, fixup_ti816x_class);
a94d072b2   Ben Hutchings   PCI: Add quirk fo...
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  /* Some PCIe devices do not work reliably with the claimed maximum
   * payload size supported.
   */
  static void __devinit fixup_mpss_256(struct pci_dev *dev)
  {
  	dev->pcie_mpss = 1; /* 256 bytes */
  }
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
  			 PCI_DEVICE_ID_SOLARFLARE_SFC4000A_0, fixup_mpss_256);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
  			 PCI_DEVICE_ID_SOLARFLARE_SFC4000A_1, fixup_mpss_256);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
  			 PCI_DEVICE_ID_SOLARFLARE_SFC4000B, fixup_mpss_256);
d387a8d66   Jon Mason   PCI: Workaround f...
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  /* Intel 5000 and 5100 Memory controllers have an errata with read completion
   * coalescing (which is enabled by default on some BIOSes) and MPS of 256B.
   * Since there is no way of knowing what the PCIE MPS on each fabric will be
   * until all of the devices are discovered and buses walked, read completion
   * coalescing must be disabled.  Unfortunately, it cannot be re-enabled because
   * it is possible to hotplug a device with MPS of 256B.
   */
  static void __devinit quirk_intel_mc_errata(struct pci_dev *dev)
  {
  	int err;
  	u16 rcc;
  
  	if (pcie_bus_config == PCIE_BUS_TUNE_OFF)
  		return;
  
  	/* Intel errata specifies bits to change but does not say what they are.
  	 * Keeping them magical until such time as the registers and values can
  	 * be explained.
  	 */
  	err = pci_read_config_word(dev, 0x48, &rcc);
  	if (err) {
  		dev_err(&dev->dev, "Error attempting to read the read "
  			"completion coalescing register.
  ");
  		return;
  	}
  
  	if (!(rcc & (1 << 10)))
  		return;
  
  	rcc &= ~(1 << 10);
  
  	err = pci_write_config_word(dev, 0x48, rcc);
  	if (err) {
  		dev_err(&dev->dev, "Error attempting to write the read "
  			"completion coalescing register.
  ");
  		return;
  	}
  
  	pr_info_once("Read completion coalescing disabled due to hardware "
  		     "errata relating to 256B MPS.
  ");
  }
  /* Intel 5000 series memory controllers and ports 2-7 */
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25c0, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d0, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d4, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d8, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_mc_errata);
  /* Intel 5100 series memory controllers and ports 2-7 */
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65c0, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e2, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e3, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e4, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e5, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e6, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e7, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f7, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f8, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata);
  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata);
bfb0f330a   Jesse Barnes   PCI: fixup whites...
2920
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  static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
  			  struct pci_fixup *end)
3d1373102   Thomas Petazzoni   PCI: allow quirks...
2922
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  {
  	while (f < end) {
  		if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
bfb0f330a   Jesse Barnes   PCI: fixup whites...
2925
  		    (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
c9bbb4abb   Yinghai Lu   PCI: use %pF inst...
2926
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  			dev_dbg(&dev->dev, "calling %pF
  ", f->hook);
3d1373102   Thomas Petazzoni   PCI: allow quirks...
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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[];
  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);
  }
93177a748   Rafael J. Wysocki   PCI: Clean up bui...
2996
  EXPORT_SYMBOL(pci_fixup_device);
8d86fb2c8   David Woodhouse   Rename pci_init()...
2997

000102688   David Woodhouse   Mark pci_apply_fi...
2998
  static int __init pci_apply_final_quirks(void)
8d86fb2c8   David Woodhouse   Rename pci_init()...
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  {
  	struct pci_dev *dev = NULL;
ac1aa47b1   Jesse Barnes   PCI: determine CL...
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  	u8 cls = 0;
  	u8 tmp;
  
  	if (pci_cache_line_size)
  		printk(KERN_DEBUG "PCI: CLS %u bytes
  ",
  		       pci_cache_line_size << 2);
8d86fb2c8   David Woodhouse   Rename pci_init()...
3008

4e344b1cc   Kulikov Vasiliy   PCI: use for_each...
3009
  	for_each_pci_dev(dev) {
8d86fb2c8   David Woodhouse   Rename pci_init()...
3010
  		pci_fixup_device(pci_fixup_final, dev);
ac1aa47b1   Jesse Barnes   PCI: determine CL...
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  		/*
  		 * If arch hasn't set it explicitly yet, use the CLS
  		 * value shared by all PCI devices.  If there's a
  		 * mismatch, fall back to the default value.
  		 */
  		if (!pci_cache_line_size) {
  			pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &tmp);
  			if (!cls)
  				cls = tmp;
  			if (!tmp || cls == tmp)
  				continue;
  
  			printk(KERN_DEBUG "PCI: CLS mismatch (%u != %u), "
  			       "using %u bytes
  ", cls << 2, tmp << 2,
  			       pci_dfl_cache_line_size << 2);
  			pci_cache_line_size = pci_dfl_cache_line_size;
  		}
  	}
  	if (!pci_cache_line_size) {
  		printk(KERN_DEBUG "PCI: CLS %u bytes, default %u
  ",
  		       cls << 2, pci_dfl_cache_line_size << 2);
2820f333e   Csaba Henk   PCI: Handle case ...
3034
  		pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size;
8d86fb2c8   David Woodhouse   Rename pci_init()...
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  	}
  
  	return 0;
  }
cf6f3bf7e   David Woodhouse   Run pci_apply_fin...
3039
  fs_initcall_sync(pci_apply_final_quirks);
b9c3b2664   Dexuan Cui   PCI: support devi...
3040
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  /*
   * Followings are device-specific reset methods which can be used to
   * reset a single function if other methods (e.g. FLR, PM D0->D3) are
   * not available.
   */
aeb30016f   Dexuan Cui   PCI: add Intel US...
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  static int reset_intel_generic_dev(struct pci_dev *dev, int probe)
  {
  	int pos;
  
  	/* only implement PCI_CLASS_SERIAL_USB at present */
  	if (dev->class == PCI_CLASS_SERIAL_USB) {
  		pos = pci_find_capability(dev, PCI_CAP_ID_VNDR);
  		if (!pos)
  			return -ENOTTY;
  
  		if (probe)
  			return 0;
  
  		pci_write_config_byte(dev, pos + 0x4, 1);
  		msleep(100);
  
  		return 0;
  	} else {
  		return -ENOTTY;
  	}
  }
c763e7b58   Dexuan Cui   PCI: add Intel 82...
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  static int reset_intel_82599_sfp_virtfn(struct pci_dev *dev, int probe)
  {
  	int pos;
  
  	pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
  	if (!pos)
  		return -ENOTTY;
  
  	if (probe)
  		return 0;
  
  	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL,
  				PCI_EXP_DEVCTL_BCR_FLR);
  	msleep(100);
  
  	return 0;
  }
  
  #define PCI_DEVICE_ID_INTEL_82599_SFP_VF   0x10ed
5b889bf23   Rafael J. Wysocki   PCI: Fix build if...
3086
  static const struct pci_dev_reset_methods pci_dev_reset_methods[] = {
c763e7b58   Dexuan Cui   PCI: add Intel 82...
3087
3088
  	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82599_SFP_VF,
  		 reset_intel_82599_sfp_virtfn },
aeb30016f   Dexuan Cui   PCI: add Intel US...
3089
3090
  	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
  		reset_intel_generic_dev },
b9c3b2664   Dexuan Cui   PCI: support devi...
3091
3092
  	{ 0 }
  };
5b889bf23   Rafael J. Wysocki   PCI: Fix build if...
3093
3094
3095
  
  int pci_dev_specific_reset(struct pci_dev *dev, int probe)
  {
df9d1e8a4   Linus Torvalds   pci: avoid compil...
3096
  	const struct pci_dev_reset_methods *i;
5b889bf23   Rafael J. Wysocki   PCI: Fix build if...
3097
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3107
  
  	for (i = pci_dev_reset_methods; i->reset; i++) {
  		if ((i->vendor == dev->vendor ||
  		     i->vendor == (u16)PCI_ANY_ID) &&
  		    (i->device == dev->device ||
  		     i->device == (u16)PCI_ANY_ID))
  			return i->reset(dev, probe);
  	}
  
  	return -ENOTTY;
  }