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1811 lines
62 KiB
C
1811 lines
62 KiB
C
/*
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* This file contains work-arounds for many known PCI hardware
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* bugs. Devices present only on certain architectures (host
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* bridges et cetera) should be handled in arch-specific code.
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*
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* Note: any quirks for hotpluggable devices must _NOT_ be declared __init.
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*
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* Copyright (c) 1999 Martin Mares <mj@ucw.cz>
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*
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* Init/reset quirks for USB host controllers should be in the
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* USB quirks file, where their drivers can access reuse it.
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*
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* The bridge optimization stuff has been removed. If you really
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* have a silly BIOS which is unable to set your host bridge right,
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* use the PowerTweak utility (see http://powertweak.sourceforge.net).
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/acpi.h>
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#include "pci.h"
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/* The Mellanox Tavor device gives false positive parity errors
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* Mark this device with a broken_parity_status, to allow
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* PCI scanning code to "skip" this now blacklisted device.
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*/
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static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
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{
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dev->broken_parity_status = 1; /* This device gives false positives */
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
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/* Deal with broken BIOS'es that neglect to enable passive release,
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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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{
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struct pci_dev *d = NULL;
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unsigned char dlc;
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/* We have to make sure a particular bit is set in the PIIX3
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ISA bridge, so we have to go out and find it. */
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while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
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pci_read_config_byte(d, 0x82, &dlc);
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if (!(dlc & 1<<1)) {
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printk(KERN_ERR "PCI: PIIX3: Enabling Passive Release on %s\n", pci_name(d));
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dlc |= 1<<1;
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pci_write_config_byte(d, 0x82, dlc);
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}
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release );
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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
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but VIA don't answer queries. If you happen to have good contacts at VIA
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ask them for me please -- Alan
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This appears to be BIOS not version dependent. So presumably there is a
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chipset level fix */
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int isa_dma_bridge_buggy;
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EXPORT_SYMBOL(isa_dma_bridge_buggy);
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static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
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{
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if (!isa_dma_bridge_buggy) {
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isa_dma_bridge_buggy=1;
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printk(KERN_INFO "Activating ISA DMA hang workarounds.\n");
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}
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}
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/*
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* Its not totally clear which chipsets are the problematic ones
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* We know 82C586 and 82C596 variants are affected.
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*/
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs );
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int pci_pci_problems;
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EXPORT_SYMBOL(pci_pci_problems);
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/*
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* Chipsets where PCI->PCI transfers vanish or hang
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*/
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static void __devinit quirk_nopcipci(struct pci_dev *dev)
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{
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if ((pci_pci_problems & PCIPCI_FAIL)==0) {
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printk(KERN_INFO "Disabling direct PCI/PCI transfers.\n");
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pci_pci_problems |= PCIPCI_FAIL;
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci );
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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)
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{
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u8 rev;
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pci_read_config_byte(dev, 0x08, &rev);
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if (rev == 0x13) {
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/* Erratum 24 */
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printk(KERN_INFO "Chipset erratum: Disabling direct PCI/AGP transfers.\n");
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pci_pci_problems |= PCIAGP_FAIL;
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd );
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/*
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* Triton requires workarounds to be used by the drivers
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*/
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static void __devinit quirk_triton(struct pci_dev *dev)
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{
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if ((pci_pci_problems&PCIPCI_TRITON)==0) {
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printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
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pci_pci_problems |= PCIPCI_TRITON;
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton );
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/*
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* VIA Apollo KT133 needs PCI latency patch
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* Made according to a windows driver based patch by George E. Breese
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* see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
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* Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
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* the info on which Mr Breese based his work.
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*
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* Updated based on further information from the site and also on
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* information provided by VIA
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*/
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static void quirk_vialatency(struct pci_dev *dev)
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{
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struct pci_dev *p;
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u8 rev;
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u8 busarb;
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/* Ok we have a potential problem chipset here. Now see if we have
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a buggy southbridge */
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p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
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if (p!=NULL) {
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pci_read_config_byte(p, PCI_CLASS_REVISION, &rev);
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/* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
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/* Check for buggy part revisions */
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if (rev < 0x40 || rev > 0x42)
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goto exit;
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} else {
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p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
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if (p==NULL) /* No problem parts */
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goto exit;
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pci_read_config_byte(p, PCI_CLASS_REVISION, &rev);
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/* Check for buggy part revisions */
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if (rev < 0x10 || rev > 0x12)
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goto exit;
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}
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/*
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* Ok we have the problem. Now set the PCI master grant to
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* occur every master grant. The apparent bug is that under high
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* PCI load (quite common in Linux of course) you can get data
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* loss when the CPU is held off the bus for 3 bus master requests
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* This happens to include the IDE controllers....
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*
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* VIA only apply this fix when an SB Live! is present but under
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* both Linux and Windows this isnt enough, and we have seen
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* corruption without SB Live! but with things like 3 UDMA IDE
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* controllers. So we ignore that bit of the VIA recommendation..
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*/
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pci_read_config_byte(dev, 0x76, &busarb);
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/* Set bit 4 and bi 5 of byte 76 to 0x01
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"Master priority rotation on every PCI master grant */
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busarb &= ~(1<<5);
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busarb |= (1<<4);
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pci_write_config_byte(dev, 0x76, busarb);
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printk(KERN_INFO "Applying VIA southbridge workaround.\n");
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exit:
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pci_dev_put(p);
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency );
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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 );
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DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency );
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DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency );
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/*
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* VIA Apollo VP3 needs ETBF on BT848/878
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*/
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static void __devinit quirk_viaetbf(struct pci_dev *dev)
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{
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if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
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printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
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pci_pci_problems |= PCIPCI_VIAETBF;
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}
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}
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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)
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{
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if ((pci_pci_problems&PCIPCI_VSFX)==0) {
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printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
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pci_pci_problems |= PCIPCI_VSFX;
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx );
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/*
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* Ali Magik requires workarounds to be used by the drivers
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* that DMA to AGP space. Latency must be set to 0xA and triton
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* workaround applied too
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* [Info kindly provided by ALi]
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*/
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static void __init quirk_alimagik(struct pci_dev *dev)
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{
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if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
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printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
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pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik );
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/*
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* Natoma has some interesting boundary conditions with Zoran stuff
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* at least
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*/
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static void __devinit quirk_natoma(struct pci_dev *dev)
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{
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if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
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printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
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pci_pci_problems |= PCIPCI_NATOMA;
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}
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma );
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma );
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/*
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* This chip can cause PCI parity errors if config register 0xA0 is read
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* while DMAs are occurring.
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*/
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static void __devinit quirk_citrine(struct pci_dev *dev)
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{
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dev->cfg_size = 0xA0;
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine );
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/*
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* S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
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* If it's needed, re-allocate the region.
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*/
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static void __devinit quirk_s3_64M(struct pci_dev *dev)
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{
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struct resource *r = &dev->resource[0];
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if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
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r->start = 0;
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r->end = 0x3ffffff;
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}
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M );
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M );
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static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
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unsigned size, int nr, const char *name)
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{
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region &= ~(size-1);
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if (region) {
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struct pci_bus_region bus_region;
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struct resource *res = dev->resource + nr;
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res->name = pci_name(dev);
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res->start = region;
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res->end = region + size - 1;
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res->flags = IORESOURCE_IO;
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/* Convert from PCI bus to resource space. */
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bus_region.start = res->start;
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bus_region.end = res->end;
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pcibios_bus_to_resource(dev, res, &bus_region);
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pci_claim_resource(dev, nr);
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printk("PCI quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
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}
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}
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/*
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* ATI Northbridge setups MCE the processor if you even
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* read somewhere between 0x3b0->0x3bb or read 0x3d3
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*/
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static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
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{
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printk(KERN_INFO "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb.\n");
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/* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
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request_region(0x3b0, 0x0C, "RadeonIGP");
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request_region(0x3d3, 0x01, "RadeonIGP");
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}
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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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/*
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* Let's make the southbridge information explicit instead
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* of having to worry about people probing the ACPI areas,
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* for example.. (Yes, it happens, and if you read the wrong
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* ACPI register it will put the machine to sleep with no
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* way of waking it up again. Bummer).
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*
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* ALI M7101: Two IO regions pointed to by words at
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* 0xE0 (64 bytes of ACPI registers)
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* 0xE2 (32 bytes of SMB registers)
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*/
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static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
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{
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u16 region;
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pci_read_config_word(dev, 0xE0, ®ion);
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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, ®ion);
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quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
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}
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi );
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|
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static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
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{
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u32 devres;
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u32 mask, size, base;
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|
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pci_read_config_dword(dev, port, &devres);
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if ((devres & enable) != enable)
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return;
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mask = (devres >> 16) & 15;
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base = devres & 0xffff;
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size = 16;
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for (;;) {
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unsigned bit = size >> 1;
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if ((bit & mask) == bit)
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break;
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size = bit;
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}
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/*
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* For now we only print it out. Eventually we'll want to
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* reserve it (at least if it's in the 0x1000+ range), but
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* let's get enough confirmation reports first.
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*/
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base &= -size;
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printk("%s PIO at %04x-%04x\n", name, base, base + size - 1);
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}
|
|
|
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static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
|
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{
|
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u32 devres;
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u32 mask, size, base;
|
|
|
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pci_read_config_dword(dev, port, &devres);
|
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if ((devres & enable) != enable)
|
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return;
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base = devres & 0xffff0000;
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mask = (devres & 0x3f) << 16;
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size = 128 << 16;
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for (;;) {
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unsigned bit = size >> 1;
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if ((bit & mask) == bit)
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break;
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size = bit;
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}
|
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/*
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* For now we only print it out. Eventually we'll want to
|
|
* reserve it, but let's get enough confirmation reports first.
|
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*/
|
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base &= -size;
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printk("%s MMIO at %04x-%04x\n", name, base, base + size - 1);
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}
|
|
|
|
/*
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|
* PIIX4 ACPI: Two IO regions pointed to by longwords at
|
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* 0x40 (64 bytes of ACPI registers)
|
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* 0x90 (16 bytes of SMB registers)
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|
* and a few strange programmable PIIX4 device resources.
|
|
*/
|
|
static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
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{
|
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u32 region, res_a;
|
|
|
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pci_read_config_dword(dev, 0x40, ®ion);
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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, ®ion);
|
|
quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
|
|
|
|
/* Device resource A has enables for some of the other ones */
|
|
pci_read_config_dword(dev, 0x5c, &res_a);
|
|
|
|
piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
|
|
piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
|
|
|
|
/* Device resource D is just bitfields for static resources */
|
|
|
|
/* Device 12 enabled? */
|
|
if (res_a & (1 << 29)) {
|
|
piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
|
|
piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
|
|
}
|
|
/* Device 13 enabled? */
|
|
if (res_a & (1 << 30)) {
|
|
piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
|
|
piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
|
|
}
|
|
piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
|
|
piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi );
|
|
|
|
/*
|
|
* ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
|
|
* 0x40 (128 bytes of ACPI, GPIO & TCO registers)
|
|
* 0x58 (64 bytes of GPIO I/O space)
|
|
*/
|
|
static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
|
|
{
|
|
u32 region;
|
|
|
|
pci_read_config_dword(dev, 0x40, ®ion);
|
|
quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO");
|
|
|
|
pci_read_config_dword(dev, 0x58, ®ion);
|
|
quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO");
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi );
|
|
|
|
static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev)
|
|
{
|
|
u32 region;
|
|
|
|
pci_read_config_dword(dev, 0x40, ®ion);
|
|
quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH6 ACPI/GPIO/TCO");
|
|
|
|
pci_read_config_dword(dev, 0x48, ®ion);
|
|
quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO");
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich6_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich6_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich6_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich6_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich6_lpc_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich6_lpc_acpi );
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
u8 rev;
|
|
u32 region;
|
|
|
|
pci_read_config_byte(dev, PCI_CLASS_REVISION, &rev);
|
|
if (rev & 0x10) {
|
|
pci_read_config_dword(dev, 0x48, ®ion);
|
|
region &= PCI_BASE_ADDRESS_IO_MASK;
|
|
quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi );
|
|
|
|
/*
|
|
* VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
|
|
* 0x48 (256 bytes of ACPI registers)
|
|
* 0x70 (128 bytes of hardware monitoring register)
|
|
* 0x90 (16 bytes of SMB registers)
|
|
*/
|
|
static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
|
|
{
|
|
u16 hm;
|
|
u32 smb;
|
|
|
|
quirk_vt82c586_acpi(dev);
|
|
|
|
pci_read_config_word(dev, 0x70, &hm);
|
|
hm &= PCI_BASE_ADDRESS_IO_MASK;
|
|
quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
|
|
|
|
pci_read_config_dword(dev, 0x90, &smb);
|
|
smb &= PCI_BASE_ADDRESS_IO_MASK;
|
|
quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi );
|
|
|
|
/*
|
|
* VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
|
|
* 0x88 (128 bytes of power management registers)
|
|
* 0xd0 (16 bytes of SMB registers)
|
|
*/
|
|
static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
|
|
{
|
|
u16 pm, smb;
|
|
|
|
pci_read_config_word(dev, 0x88, &pm);
|
|
pm &= PCI_BASE_ADDRESS_IO_MASK;
|
|
quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
|
|
|
|
pci_read_config_word(dev, 0xd0, &smb);
|
|
smb &= PCI_BASE_ADDRESS_IO_MASK;
|
|
quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
|
|
|
|
|
|
#ifdef CONFIG_X86_IO_APIC
|
|
|
|
#include <asm/io_apic.h>
|
|
|
|
/*
|
|
* VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
|
|
* devices to the external APIC.
|
|
*
|
|
* TODO: When we have device-specific interrupt routers,
|
|
* this code will go away from quirks.
|
|
*/
|
|
static void quirk_via_ioapic(struct pci_dev *dev)
|
|
{
|
|
u8 tmp;
|
|
|
|
if (nr_ioapics < 1)
|
|
tmp = 0; /* nothing routed to external APIC */
|
|
else
|
|
tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
|
|
|
|
printk(KERN_INFO "PCI: %sbling Via external APIC routing\n",
|
|
tmp == 0 ? "Disa" : "Ena");
|
|
|
|
/* Offset 0x58: External APIC IRQ output control */
|
|
pci_write_config_byte (dev, 0x58, tmp);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic );
|
|
|
|
/*
|
|
* VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
|
|
* This leads to doubled level interrupt rates.
|
|
* Set this bit to get rid of cycle wastage.
|
|
* Otherwise uncritical.
|
|
*/
|
|
static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
|
|
{
|
|
u8 misc_control2;
|
|
#define BYPASS_APIC_DEASSERT 8
|
|
|
|
pci_read_config_byte(dev, 0x5B, &misc_control2);
|
|
if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
|
|
printk(KERN_INFO "PCI: Bypassing VIA 8237 APIC De-Assert Message\n");
|
|
pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
|
|
|
|
/*
|
|
* The AMD io apic can hang the box when an apic irq is masked.
|
|
* We check all revs >= B0 (yet not in the pre production!) as the bug
|
|
* is currently marked NoFix
|
|
*
|
|
* We have multiple reports of hangs with this chipset that went away with
|
|
* noapic specified. For the moment we assume it's the erratum. We may be wrong
|
|
* of course. However the advice is demonstrably good even if so..
|
|
*/
|
|
static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
|
|
{
|
|
u8 rev;
|
|
|
|
pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
|
|
if (rev >= 0x02) {
|
|
printk(KERN_WARNING "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
|
|
printk(KERN_WARNING " : booting with the \"noapic\" option.\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic );
|
|
|
|
static void __init quirk_ioapic_rmw(struct pci_dev *dev)
|
|
{
|
|
if (dev->devfn == 0 && dev->bus->number == 0)
|
|
sis_apic_bug = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw );
|
|
|
|
#define AMD8131_revA0 0x01
|
|
#define AMD8131_revB0 0x11
|
|
#define AMD8131_MISC 0x40
|
|
#define AMD8131_NIOAMODE_BIT 0
|
|
static void quirk_amd_8131_ioapic(struct pci_dev *dev)
|
|
{
|
|
unsigned char revid, tmp;
|
|
|
|
if (nr_ioapics == 0)
|
|
return;
|
|
|
|
pci_read_config_byte(dev, PCI_REVISION_ID, &revid);
|
|
if (revid == AMD8131_revA0 || revid == AMD8131_revB0) {
|
|
printk(KERN_INFO "Fixing up AMD8131 IOAPIC mode\n");
|
|
pci_read_config_byte( dev, AMD8131_MISC, &tmp);
|
|
tmp &= ~(1 << AMD8131_NIOAMODE_BIT);
|
|
pci_write_config_byte( dev, AMD8131_MISC, tmp);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
|
|
#endif /* CONFIG_X86_IO_APIC */
|
|
|
|
|
|
/*
|
|
* FIXME: it is questionable that quirk_via_acpi
|
|
* is needed. It shows up as an ISA bridge, and does not
|
|
* support the PCI_INTERRUPT_LINE register at all. Therefore
|
|
* it seems like setting the pci_dev's 'irq' to the
|
|
* value of the ACPI SCI interrupt is only done for convenience.
|
|
* -jgarzik
|
|
*/
|
|
static void __devinit quirk_via_acpi(struct pci_dev *d)
|
|
{
|
|
/*
|
|
* VIA ACPI device: SCI IRQ line in PCI config byte 0x42
|
|
*/
|
|
u8 irq;
|
|
pci_read_config_byte(d, 0x42, &irq);
|
|
irq &= 0xf;
|
|
if (irq && (irq != 2))
|
|
d->irq = irq;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi );
|
|
|
|
|
|
/*
|
|
* VIA bridges which have VLink
|
|
*/
|
|
|
|
static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
|
|
|
|
static void quirk_via_bridge(struct pci_dev *dev)
|
|
{
|
|
/* See what bridge we have and find the device ranges */
|
|
switch (dev->device) {
|
|
case PCI_DEVICE_ID_VIA_82C686:
|
|
/* The VT82C686 is special, it attaches to PCI and can have
|
|
any device number. All its subdevices are functions of
|
|
that single device. */
|
|
via_vlink_dev_lo = PCI_SLOT(dev->devfn);
|
|
via_vlink_dev_hi = PCI_SLOT(dev->devfn);
|
|
break;
|
|
case PCI_DEVICE_ID_VIA_8237:
|
|
case PCI_DEVICE_ID_VIA_8237A:
|
|
via_vlink_dev_lo = 15;
|
|
break;
|
|
case PCI_DEVICE_ID_VIA_8235:
|
|
via_vlink_dev_lo = 16;
|
|
break;
|
|
case PCI_DEVICE_ID_VIA_8231:
|
|
case PCI_DEVICE_ID_VIA_8233_0:
|
|
case PCI_DEVICE_ID_VIA_8233A:
|
|
case PCI_DEVICE_ID_VIA_8233C_0:
|
|
via_vlink_dev_lo = 17;
|
|
break;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
|
|
|
|
/**
|
|
* quirk_via_vlink - VIA VLink IRQ number update
|
|
* @dev: PCI device
|
|
*
|
|
* If the device we are dealing with is on a PIC IRQ we need to
|
|
* ensure that the IRQ line register which usually is not relevant
|
|
* for PCI cards, is actually written so that interrupts get sent
|
|
* to the right place.
|
|
* We only do this on systems where a VIA south bridge was detected,
|
|
* and only for VIA devices on the motherboard (see quirk_via_bridge
|
|
* above).
|
|
*/
|
|
|
|
static void quirk_via_vlink(struct pci_dev *dev)
|
|
{
|
|
u8 irq, new_irq;
|
|
|
|
/* Check if we have VLink at all */
|
|
if (via_vlink_dev_lo == -1)
|
|
return;
|
|
|
|
new_irq = dev->irq;
|
|
|
|
/* Don't quirk interrupts outside the legacy IRQ range */
|
|
if (!new_irq || new_irq > 15)
|
|
return;
|
|
|
|
/* Internal device ? */
|
|
if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
|
|
PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
|
|
return;
|
|
|
|
/* This is an internal VLink device on a PIC interrupt. The BIOS
|
|
ought to have set this but may not have, so we redo it */
|
|
|
|
pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
|
|
if (new_irq != irq) {
|
|
printk(KERN_INFO "PCI: VIA VLink IRQ fixup for %s, from %d to %d\n",
|
|
pci_name(dev), irq, new_irq);
|
|
udelay(15); /* unknown if delay really needed */
|
|
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
|
|
|
|
/*
|
|
* VIA VT82C598 has its device ID settable and many BIOSes
|
|
* set it to the ID of VT82C597 for backward compatibility.
|
|
* We need to switch it off to be able to recognize the real
|
|
* type of the chip.
|
|
*/
|
|
static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
|
|
{
|
|
pci_write_config_byte(dev, 0xfc, 0);
|
|
pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id );
|
|
|
|
/*
|
|
* CardBus controllers have a legacy base address that enables them
|
|
* to respond as i82365 pcmcia controllers. We don't want them to
|
|
* do this even if the Linux CardBus driver is not loaded, because
|
|
* the Linux i82365 driver does not (and should not) handle CardBus.
|
|
*/
|
|
static void quirk_cardbus_legacy(struct pci_dev *dev)
|
|
{
|
|
if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
|
|
return;
|
|
pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
|
|
|
|
/*
|
|
* Following the PCI ordering rules is optional on the AMD762. I'm not
|
|
* sure what the designers were smoking but let's not inhale...
|
|
*
|
|
* To be fair to AMD, it follows the spec by default, its BIOS people
|
|
* who turn it off!
|
|
*/
|
|
static void quirk_amd_ordering(struct pci_dev *dev)
|
|
{
|
|
u32 pcic;
|
|
pci_read_config_dword(dev, 0x4C, &pcic);
|
|
if ((pcic&6)!=6) {
|
|
pcic |= 6;
|
|
printk(KERN_WARNING "BIOS failed to enable PCI standards compliance, fixing this error.\n");
|
|
pci_write_config_dword(dev, 0x4C, pcic);
|
|
pci_read_config_dword(dev, 0x84, &pcic);
|
|
pcic |= (1<<23); /* Required in this mode */
|
|
pci_write_config_dword(dev, 0x84, pcic);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering );
|
|
|
|
/*
|
|
* DreamWorks provided workaround for Dunord I-3000 problem
|
|
*
|
|
* This card decodes and responds to addresses not apparently
|
|
* assigned to it. We force a larger allocation to ensure that
|
|
* nothing gets put too close to it.
|
|
*/
|
|
static void __devinit quirk_dunord ( struct pci_dev * dev )
|
|
{
|
|
struct resource *r = &dev->resource [1];
|
|
r->start = 0;
|
|
r->end = 0xffffff;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord );
|
|
|
|
/*
|
|
* i82380FB mobile docking controller: its PCI-to-PCI bridge
|
|
* is subtractive decoding (transparent), and does indicate this
|
|
* in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
|
|
* instead of 0x01.
|
|
*/
|
|
static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
|
|
{
|
|
dev->transparent = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge );
|
|
|
|
/*
|
|
* Common misconfiguration of the MediaGX/Geode PCI master that will
|
|
* reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
|
|
* datasheets found at http://www.national.com/ds/GX for info on what
|
|
* these bits do. <christer@weinigel.se>
|
|
*/
|
|
static void quirk_mediagx_master(struct pci_dev *dev)
|
|
{
|
|
u8 reg;
|
|
pci_read_config_byte(dev, 0x41, ®);
|
|
if (reg & 2) {
|
|
reg &= ~2;
|
|
printk(KERN_INFO "PCI: Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
|
|
pci_write_config_byte(dev, 0x41, reg);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master );
|
|
|
|
/*
|
|
* Ensure C0 rev restreaming is off. This is normally done by
|
|
* the BIOS but in the odd case it is not the results are corruption
|
|
* hence the presence of a Linux check
|
|
*/
|
|
static void quirk_disable_pxb(struct pci_dev *pdev)
|
|
{
|
|
u16 config;
|
|
u8 rev;
|
|
|
|
pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
|
|
if (rev != 0x04) /* Only C0 requires this */
|
|
return;
|
|
pci_read_config_word(pdev, 0x40, &config);
|
|
if (config & (1<<6)) {
|
|
config &= ~(1<<6);
|
|
pci_write_config_word(pdev, 0x40, config);
|
|
printk(KERN_INFO "PCI: C0 revision 450NX. Disabling PCI restreaming.\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb );
|
|
|
|
|
|
static void __devinit quirk_sb600_sata(struct pci_dev *pdev)
|
|
{
|
|
/* set sb600 sata to ahci mode */
|
|
if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
|
|
u8 tmp;
|
|
|
|
pci_read_config_byte(pdev, 0x40, &tmp);
|
|
pci_write_config_byte(pdev, 0x40, tmp|1);
|
|
pci_write_config_byte(pdev, 0x9, 1);
|
|
pci_write_config_byte(pdev, 0xa, 6);
|
|
pci_write_config_byte(pdev, 0x40, tmp);
|
|
|
|
pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_sb600_sata);
|
|
|
|
/*
|
|
* Serverworks CSB5 IDE does not fully support native mode
|
|
*/
|
|
static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
|
|
{
|
|
u8 prog;
|
|
pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
|
|
if (prog & 5) {
|
|
prog &= ~5;
|
|
pdev->class &= ~5;
|
|
pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
|
|
/* PCI layer will sort out resources */
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide );
|
|
|
|
/*
|
|
* Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
|
|
*/
|
|
static void __init quirk_ide_samemode(struct pci_dev *pdev)
|
|
{
|
|
u8 prog;
|
|
|
|
pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
|
|
|
|
if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
|
|
printk(KERN_INFO "PCI: IDE mode mismatch; forcing legacy mode\n");
|
|
prog &= ~5;
|
|
pdev->class &= ~5;
|
|
pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
|
|
|
|
/* This was originally an Alpha specific thing, but it really fits here.
|
|
* The i82375 PCI/EISA bridge appears as non-classified. Fix that.
|
|
*/
|
|
static void __init quirk_eisa_bridge(struct pci_dev *dev)
|
|
{
|
|
dev->class = PCI_CLASS_BRIDGE_EISA << 8;
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge );
|
|
|
|
/*
|
|
* On the MSI-K8T-Neo2Fir Board, the internal Soundcard is disabled
|
|
* when a PCI-Soundcard is added. The BIOS only gives Options
|
|
* "Disabled" and "AUTO". This Quirk Sets the corresponding
|
|
* Register-Value to enable the Soundcard.
|
|
*
|
|
* FIXME: Presently this quirk will run on anything that has an 8237
|
|
* which isn't correct, we need to check DMI tables or something in
|
|
* order to make sure it only runs on the MSI-K8T-Neo2Fir. Because it
|
|
* runs everywhere at present we suppress the printk output in most
|
|
* irrelevant cases.
|
|
*/
|
|
static void k8t_sound_hostbridge(struct pci_dev *dev)
|
|
{
|
|
unsigned char val;
|
|
|
|
pci_read_config_byte(dev, 0x50, &val);
|
|
if (val == 0x88 || val == 0xc8) {
|
|
/* Assume it's probably a MSI-K8T-Neo2Fir */
|
|
printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, attempting to turn soundcard ON\n");
|
|
pci_write_config_byte(dev, 0x50, val & (~0x40));
|
|
|
|
/* Verify the Change for Status output */
|
|
pci_read_config_byte(dev, 0x50, &val);
|
|
if (val & 0x40)
|
|
printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard still off\n");
|
|
else
|
|
printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard on\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge);
|
|
|
|
/*
|
|
* On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
|
|
* is not activated. The myth is that Asus said that they do not want the
|
|
* users to be irritated by just another PCI Device in the Win98 device
|
|
* manager. (see the file prog/hotplug/README.p4b in the lm_sensors
|
|
* package 2.7.0 for details)
|
|
*
|
|
* The SMBus PCI Device can be activated by setting a bit in the ICH LPC
|
|
* bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
|
|
* becomes necessary to do this tweak in two steps -- I've chosen the Host
|
|
* bridge as trigger.
|
|
*/
|
|
static int asus_hides_smbus;
|
|
|
|
static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
|
|
{
|
|
if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
|
|
if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
|
|
switch(dev->subsystem_device) {
|
|
case 0x8025: /* P4B-LX */
|
|
case 0x8070: /* P4B */
|
|
case 0x8088: /* P4B533 */
|
|
case 0x1626: /* L3C notebook */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
|
|
switch(dev->subsystem_device) {
|
|
case 0x80b1: /* P4GE-V */
|
|
case 0x80b2: /* P4PE */
|
|
case 0x8093: /* P4B533-V */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
|
|
switch(dev->subsystem_device) {
|
|
case 0x8030: /* P4T533 */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
|
|
switch (dev->subsystem_device) {
|
|
case 0x8070: /* P4G8X Deluxe */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
|
|
switch (dev->subsystem_device) {
|
|
case 0x80c9: /* PU-DLS */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x1751: /* M2N notebook */
|
|
case 0x1821: /* M5N notebook */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x184b: /* W1N notebook */
|
|
case 0x186a: /* M6Ne notebook */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x80f2: /* P4P800-X */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x1882: /* M6V notebook */
|
|
case 0x1977: /* A6VA notebook */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
} else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
|
|
if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
|
|
switch(dev->subsystem_device) {
|
|
case 0x088C: /* HP Compaq nc8000 */
|
|
case 0x0890: /* HP Compaq nc6000 */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x12bc: /* HP D330L */
|
|
case 0x12bd: /* HP D530 */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
|
|
switch (dev->subsystem_device) {
|
|
case 0x099c: /* HP Compaq nx6110 */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
} else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_TOSHIBA)) {
|
|
if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
|
|
switch(dev->subsystem_device) {
|
|
case 0x0001: /* Toshiba Satellite A40 */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
|
|
switch(dev->subsystem_device) {
|
|
case 0x0001: /* Toshiba Tecra M2 */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
} else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
|
|
if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
|
|
switch(dev->subsystem_device) {
|
|
case 0xC00C: /* Samsung P35 notebook */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
} else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
|
|
if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
|
|
switch(dev->subsystem_device) {
|
|
case 0x0058: /* Compaq Evo N620c */
|
|
asus_hides_smbus = 1;
|
|
}
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_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 );
|
|
|
|
static void asus_hides_smbus_lpc(struct pci_dev *dev)
|
|
{
|
|
u16 val;
|
|
|
|
if (likely(!asus_hides_smbus))
|
|
return;
|
|
|
|
pci_read_config_word(dev, 0xF2, &val);
|
|
if (val & 0x8) {
|
|
pci_write_config_word(dev, 0xF2, val & (~0x8));
|
|
pci_read_config_word(dev, 0xF2, &val);
|
|
if (val & 0x8)
|
|
printk(KERN_INFO "PCI: i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
|
|
else
|
|
printk(KERN_INFO "PCI: Enabled i801 SMBus device\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc );
|
|
|
|
static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
|
|
{
|
|
u32 val, rcba;
|
|
void __iomem *base;
|
|
|
|
if (likely(!asus_hides_smbus))
|
|
return;
|
|
pci_read_config_dword(dev, 0xF0, &rcba);
|
|
base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); /* use bits 31:14, 16 kB aligned */
|
|
if (base == NULL) return;
|
|
val=readl(base + 0x3418); /* read the Function Disable register, dword mode only */
|
|
writel(val & 0xFFFFFFF7, base + 0x3418); /* enable the SMBus device */
|
|
iounmap(base);
|
|
printk(KERN_INFO "PCI: Enabled ICH6/i801 SMBus device\n");
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6 );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6 );
|
|
|
|
/*
|
|
* SiS 96x south bridge: BIOS typically hides SMBus device...
|
|
*/
|
|
static void quirk_sis_96x_smbus(struct pci_dev *dev)
|
|
{
|
|
u8 val = 0;
|
|
pci_read_config_byte(dev, 0x77, &val);
|
|
if (val & 0x10) {
|
|
printk(KERN_INFO "Enabling SiS 96x SMBus.\n");
|
|
pci_write_config_byte(dev, 0x77, val & ~0x10);
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus );
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus );
|
|
|
|
/*
|
|
* ... This is further complicated by the fact that some SiS96x south
|
|
* bridges pretend to be 85C503/5513 instead. In that case see if we
|
|
* spotted a compatible north bridge to make sure.
|
|
* (pci_find_device doesn't work yet)
|
|
*
|
|
* We can also enable the sis96x bit in the discovery register..
|
|
*/
|
|
#define SIS_DETECT_REGISTER 0x40
|
|
|
|
static void quirk_sis_503(struct pci_dev *dev)
|
|
{
|
|
u8 reg;
|
|
u16 devid;
|
|
|
|
pci_read_config_byte(dev, SIS_DETECT_REGISTER, ®);
|
|
pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
|
|
pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
|
|
if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
|
|
pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Ok, it now shows up as a 96x.. run the 96x quirk by
|
|
* hand in case it has already been processed.
|
|
* (depends on link order, which is apparently not guaranteed)
|
|
*/
|
|
dev->device = devid;
|
|
quirk_sis_96x_smbus(dev);
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 );
|
|
|
|
|
|
/*
|
|
* On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
|
|
* and MC97 modem controller are disabled when a second PCI soundcard is
|
|
* present. This patch, tweaking the VT8237 ISA bridge, enables them.
|
|
* -- bjd
|
|
*/
|
|
static void asus_hides_ac97_lpc(struct pci_dev *dev)
|
|
{
|
|
u8 val;
|
|
int asus_hides_ac97 = 0;
|
|
|
|
if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
|
|
if (dev->device == PCI_DEVICE_ID_VIA_8237)
|
|
asus_hides_ac97 = 1;
|
|
}
|
|
|
|
if (!asus_hides_ac97)
|
|
return;
|
|
|
|
pci_read_config_byte(dev, 0x50, &val);
|
|
if (val & 0xc0) {
|
|
pci_write_config_byte(dev, 0x50, val & (~0xc0));
|
|
pci_read_config_byte(dev, 0x50, &val);
|
|
if (val & 0xc0)
|
|
printk(KERN_INFO "PCI: onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
|
|
else
|
|
printk(KERN_INFO "PCI: enabled onboard AC97/MC97 devices\n");
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc );
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc );
|
|
|
|
#if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
|
|
|
|
/*
|
|
* If we are using libata we can drive this chip properly but must
|
|
* do this early on to make the additional device appear during
|
|
* the PCI scanning.
|
|
*/
|
|
|
|
static void quirk_jmicron_dualfn(struct pci_dev *pdev)
|
|
{
|
|
u32 conf;
|
|
u8 hdr;
|
|
|
|
/* Only poke fn 0 */
|
|
if (PCI_FUNC(pdev->devfn))
|
|
return;
|
|
|
|
switch(pdev->device) {
|
|
case PCI_DEVICE_ID_JMICRON_JMB365:
|
|
case PCI_DEVICE_ID_JMICRON_JMB366:
|
|
/* Redirect IDE second PATA port to the right spot */
|
|
pci_read_config_dword(pdev, 0x80, &conf);
|
|
conf |= (1 << 24);
|
|
/* Fall through */
|
|
pci_write_config_dword(pdev, 0x80, conf);
|
|
case PCI_DEVICE_ID_JMICRON_JMB361:
|
|
case PCI_DEVICE_ID_JMICRON_JMB363:
|
|
pci_read_config_dword(pdev, 0x40, &conf);
|
|
/* Enable dual function mode, AHCI on fn 0, IDE fn1 */
|
|
/* Set the class codes correctly and then direct IDE 0 */
|
|
conf &= ~0x000FF200; /* Clear bit 9 and 12-19 */
|
|
conf |= 0x00C2A102; /* Set 1, 8, 13, 15, 17, 22, 23 */
|
|
pci_write_config_dword(pdev, 0x40, conf);
|
|
|
|
/* Reconfigure so that the PCI scanner discovers the
|
|
device is now multifunction */
|
|
|
|
pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
|
|
pdev->hdr_type = hdr & 0x7f;
|
|
pdev->multifunction = !!(hdr & 0x80);
|
|
|
|
break;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, quirk_jmicron_dualfn);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, quirk_jmicron_dualfn);
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_X86_IO_APIC
|
|
static void __init quirk_alder_ioapic(struct pci_dev *pdev)
|
|
{
|
|
int i;
|
|
|
|
if ((pdev->class >> 8) != 0xff00)
|
|
return;
|
|
|
|
/* the first BAR is the location of the IO APIC...we must
|
|
* not touch this (and it's already covered by the fixmap), so
|
|
* forcibly insert it into the resource tree */
|
|
if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
|
|
insert_resource(&iomem_resource, &pdev->resource[0]);
|
|
|
|
/* The next five BARs all seem to be rubbish, so just clean
|
|
* them out */
|
|
for (i=1; i < 6; i++) {
|
|
memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
|
|
}
|
|
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic );
|
|
#endif
|
|
|
|
enum ide_combined_type { COMBINED = 0, IDE = 1, LIBATA = 2 };
|
|
/* Defaults to combined */
|
|
static enum ide_combined_type combined_mode;
|
|
|
|
static int __init combined_setup(char *str)
|
|
{
|
|
if (!strncmp(str, "ide", 3))
|
|
combined_mode = IDE;
|
|
else if (!strncmp(str, "libata", 6))
|
|
combined_mode = LIBATA;
|
|
else /* "combined" or anything else defaults to old behavior */
|
|
combined_mode = COMBINED;
|
|
|
|
return 1;
|
|
}
|
|
__setup("combined_mode=", combined_setup);
|
|
|
|
#ifdef CONFIG_SATA_INTEL_COMBINED
|
|
static void __devinit quirk_intel_ide_combined(struct pci_dev *pdev)
|
|
{
|
|
u8 prog, comb, tmp;
|
|
int ich = 0;
|
|
|
|
/*
|
|
* Narrow down to Intel SATA PCI devices.
|
|
*/
|
|
switch (pdev->device) {
|
|
/* PCI ids taken from drivers/scsi/ata_piix.c */
|
|
case 0x24d1:
|
|
case 0x24df:
|
|
case 0x25a3:
|
|
case 0x25b0:
|
|
ich = 5;
|
|
break;
|
|
case 0x2651:
|
|
case 0x2652:
|
|
case 0x2653:
|
|
case 0x2680: /* ESB2 */
|
|
ich = 6;
|
|
break;
|
|
case 0x27c0:
|
|
case 0x27c4:
|
|
ich = 7;
|
|
break;
|
|
case 0x2828: /* ICH8M */
|
|
ich = 8;
|
|
break;
|
|
default:
|
|
/* we do not handle this PCI device */
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Read combined mode register.
|
|
*/
|
|
pci_read_config_byte(pdev, 0x90, &tmp); /* combined mode reg */
|
|
|
|
if (ich == 5) {
|
|
tmp &= 0x6; /* interesting bits 2:1, PATA primary/secondary */
|
|
if (tmp == 0x4) /* bits 10x */
|
|
comb = (1 << 0); /* SATA port 0, PATA port 1 */
|
|
else if (tmp == 0x6) /* bits 11x */
|
|
comb = (1 << 2); /* PATA port 0, SATA port 1 */
|
|
else
|
|
return; /* not in combined mode */
|
|
} else {
|
|
WARN_ON((ich != 6) && (ich != 7) && (ich != 8));
|
|
tmp &= 0x3; /* interesting bits 1:0 */
|
|
if (tmp & (1 << 0))
|
|
comb = (1 << 2); /* PATA port 0, SATA port 1 */
|
|
else if (tmp & (1 << 1))
|
|
comb = (1 << 0); /* SATA port 0, PATA port 1 */
|
|
else
|
|
return; /* not in combined mode */
|
|
}
|
|
|
|
/*
|
|
* Read programming interface register.
|
|
* (Tells us if it's legacy or native mode)
|
|
*/
|
|
pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
|
|
|
|
/* if SATA port is in native mode, we're ok. */
|
|
if (prog & comb)
|
|
return;
|
|
|
|
/* Don't reserve any so the IDE driver can get them (but only if
|
|
* combined_mode=ide).
|
|
*/
|
|
if (combined_mode == IDE)
|
|
return;
|
|
|
|
/* Grab them both for libata if combined_mode=libata. */
|
|
if (combined_mode == LIBATA) {
|
|
request_region(0x1f0, 8, "libata"); /* port 0 */
|
|
request_region(0x170, 8, "libata"); /* port 1 */
|
|
return;
|
|
}
|
|
|
|
/* SATA port is in legacy mode. Reserve port so that
|
|
* IDE driver does not attempt to use it. If request_region
|
|
* fails, it will be obvious at boot time, so we don't bother
|
|
* checking return values.
|
|
*/
|
|
if (comb == (1 << 0))
|
|
request_region(0x1f0, 8, "libata"); /* port 0 */
|
|
else
|
|
request_region(0x170, 8, "libata"); /* port 1 */
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_intel_ide_combined );
|
|
#endif /* CONFIG_SATA_INTEL_COMBINED */
|
|
|
|
|
|
int pcie_mch_quirk;
|
|
EXPORT_SYMBOL(pcie_mch_quirk);
|
|
|
|
static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
|
|
{
|
|
pcie_mch_quirk = 1;
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch );
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch );
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch );
|
|
|
|
|
|
/*
|
|
* It's possible for the MSI to get corrupted if shpc and acpi
|
|
* are used together on certain PXH-based systems.
|
|
*/
|
|
static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
|
|
{
|
|
disable_msi_mode(dev, pci_find_capability(dev, PCI_CAP_ID_MSI),
|
|
PCI_CAP_ID_MSI);
|
|
dev->no_msi = 1;
|
|
|
|
printk(KERN_WARNING "PCI: PXH quirk detected, "
|
|
"disabling MSI for SHPC device\n");
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
|
|
|
|
/*
|
|
* Some Intel PCI Express chipsets have trouble with downstream
|
|
* device power management.
|
|
*/
|
|
static void quirk_intel_pcie_pm(struct pci_dev * dev)
|
|
{
|
|
pci_pm_d3_delay = 120;
|
|
dev->no_d1d2 = 1;
|
|
}
|
|
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
|
|
|
|
/*
|
|
* Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
|
|
* but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
|
|
* Re-allocate the region if needed...
|
|
*/
|
|
static void __init quirk_tc86c001_ide(struct pci_dev *dev)
|
|
{
|
|
struct resource *r = &dev->resource[0];
|
|
|
|
if (r->start & 0x8) {
|
|
r->start = 0;
|
|
r->end = 0xf;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
|
|
PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
|
|
quirk_tc86c001_ide);
|
|
|
|
static void __devinit quirk_netmos(struct pci_dev *dev)
|
|
{
|
|
unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
|
|
unsigned int num_serial = dev->subsystem_device & 0xf;
|
|
|
|
/*
|
|
* These Netmos parts are multiport serial devices with optional
|
|
* parallel ports. Even when parallel ports are present, they
|
|
* are identified as class SERIAL, which means the serial driver
|
|
* will claim them. To prevent this, mark them as class OTHER.
|
|
* These combo devices should be claimed by parport_serial.
|
|
*
|
|
* The subdevice ID is of the form 0x00PS, where <P> is the number
|
|
* of parallel ports and <S> is the number of serial ports.
|
|
*/
|
|
switch (dev->device) {
|
|
case PCI_DEVICE_ID_NETMOS_9735:
|
|
case PCI_DEVICE_ID_NETMOS_9745:
|
|
case PCI_DEVICE_ID_NETMOS_9835:
|
|
case PCI_DEVICE_ID_NETMOS_9845:
|
|
case PCI_DEVICE_ID_NETMOS_9855:
|
|
if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
|
|
num_parallel) {
|
|
printk(KERN_INFO "PCI: Netmos %04x (%u parallel, "
|
|
"%u serial); changing class SERIAL to OTHER "
|
|
"(use parport_serial)\n",
|
|
dev->device, num_parallel, num_serial);
|
|
dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
|
|
(dev->class & 0xff);
|
|
}
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
|
|
|
|
static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
|
|
{
|
|
u16 command;
|
|
u32 bar;
|
|
u8 __iomem *csr;
|
|
u8 cmd_hi;
|
|
|
|
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);
|
|
pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar);
|
|
|
|
if (!(command & PCI_COMMAND_MEMORY) || !bar)
|
|
return;
|
|
|
|
csr = ioremap(bar, 8);
|
|
if (!csr) {
|
|
printk(KERN_WARNING "PCI: Can't map %s e100 registers\n",
|
|
pci_name(dev));
|
|
return;
|
|
}
|
|
|
|
cmd_hi = readb(csr + 3);
|
|
if (cmd_hi == 0) {
|
|
printk(KERN_WARNING "PCI: Firmware left %s e100 interrupts "
|
|
"enabled, disabling\n", pci_name(dev));
|
|
writeb(1, csr + 3);
|
|
}
|
|
|
|
iounmap(csr);
|
|
}
|
|
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
|
|
|
|
static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
|
|
{
|
|
/* rev 1 ncr53c810 chips don't set the class at all which means
|
|
* they don't get their resources remapped. Fix that here.
|
|
*/
|
|
|
|
if (dev->class == PCI_CLASS_NOT_DEFINED) {
|
|
printk(KERN_INFO "NCR 53c810 rev 1 detected, setting PCI class.\n");
|
|
dev->class = PCI_CLASS_STORAGE_SCSI;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
|
|
|
|
static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end)
|
|
{
|
|
while (f < end) {
|
|
if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
|
|
(f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
|
|
pr_debug("PCI: Calling quirk %p for %s\n", f->hook, pci_name(dev));
|
|
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[];
|
|
|
|
|
|
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;
|
|
|
|
default:
|
|
/* stupid compiler warning, you would think with an enum... */
|
|
return;
|
|
}
|
|
pci_do_fixups(dev, start, end);
|
|
}
|
|
EXPORT_SYMBOL(pci_fixup_device);
|
|
|
|
/* 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) {
|
|
printk(KERN_INFO "PCI: Enable I/O Space to 1 KB Granularity\n");
|
|
|
|
pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
|
|
pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
|
|
base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
|
|
limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
|
|
|
|
if (base <= limit) {
|
|
res->start = base;
|
|
res->end = limit + 0x3ff;
|
|
}
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
|
|
|
|
/* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
|
|
* The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
|
|
* in drivers/pci/setup-bus.c
|
|
*/
|
|
static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
|
|
{
|
|
u16 en1k, iobl_adr, iobl_adr_1k;
|
|
struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
|
|
|
|
pci_read_config_word(dev, 0x40, &en1k);
|
|
|
|
if (en1k & 0x200) {
|
|
pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
|
|
|
|
iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
|
|
|
|
if (iobl_adr != iobl_adr_1k) {
|
|
printk(KERN_INFO "PCI: Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1 KB Granularity\n",
|
|
iobl_adr,iobl_adr_1k);
|
|
pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
|
|
}
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
|
|
|
|
/* Under some circumstances, AER is not linked with extended capabilities.
|
|
* Force it to be linked by setting the corresponding control bit in the
|
|
* config space.
|
|
*/
|
|
static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
|
|
{
|
|
uint8_t b;
|
|
if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
|
|
if (!(b & 0x20)) {
|
|
pci_write_config_byte(dev, 0xf41, b | 0x20);
|
|
printk(KERN_INFO
|
|
"PCI: Linking AER extended capability on %s\n",
|
|
pci_name(dev));
|
|
}
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
|
|
quirk_nvidia_ck804_pcie_aer_ext_cap);
|
|
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
|
|
quirk_nvidia_ck804_pcie_aer_ext_cap);
|
|
|
|
#ifdef CONFIG_PCI_MSI
|
|
/* The Serverworks PCI-X chipset does not support MSI. We cannot easily rely
|
|
* on setting PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
|
|
* some other busses controlled by the chipset even if Linux is not aware of it.
|
|
* Instead of setting the flag on all busses in the machine, simply disable MSI
|
|
* globally.
|
|
*/
|
|
static void __init quirk_svw_msi(struct pci_dev *dev)
|
|
{
|
|
pci_no_msi();
|
|
printk(KERN_WARNING "PCI: MSI quirk detected. MSI deactivated.\n");
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_svw_msi);
|
|
|
|
/* Disable MSI on chipsets that are known to not support it */
|
|
static void __devinit quirk_disable_msi(struct pci_dev *dev)
|
|
{
|
|
if (dev->subordinate) {
|
|
printk(KERN_WARNING "PCI: MSI quirk detected. "
|
|
"PCI_BUS_FLAGS_NO_MSI set for %s subordinate bus.\n",
|
|
pci_name(dev));
|
|
dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
|
|
|
|
/* Go through the list of Hypertransport capabilities and
|
|
* return 1 if a HT MSI capability is found and enabled */
|
|
static int __devinit msi_ht_cap_enabled(struct pci_dev *dev)
|
|
{
|
|
int pos, ttl = 48;
|
|
|
|
pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
|
|
while (pos && ttl--) {
|
|
u8 flags;
|
|
|
|
if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
|
|
&flags) == 0)
|
|
{
|
|
printk(KERN_INFO "PCI: Found %s HT MSI Mapping on %s\n",
|
|
flags & HT_MSI_FLAGS_ENABLE ?
|
|
"enabled" : "disabled", pci_name(dev));
|
|
return (flags & HT_MSI_FLAGS_ENABLE) != 0;
|
|
}
|
|
|
|
pos = pci_find_next_ht_capability(dev, pos,
|
|
HT_CAPTYPE_MSI_MAPPING);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
|
|
static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
|
|
{
|
|
if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
|
|
printk(KERN_WARNING "PCI: MSI quirk detected. "
|
|
"MSI disabled on chipset %s.\n",
|
|
pci_name(dev));
|
|
dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
|
|
}
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
|
|
quirk_msi_ht_cap);
|
|
|
|
/* The nVidia CK804 chipset may have 2 HT MSI mappings.
|
|
* MSI are supported if the MSI capability set in any of these mappings.
|
|
*/
|
|
static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
|
|
{
|
|
struct pci_dev *pdev;
|
|
|
|
if (!dev->subordinate)
|
|
return;
|
|
|
|
/* check HT MSI cap on this chipset and the root one.
|
|
* a single one having MSI is enough to be sure that MSI are supported.
|
|
*/
|
|
pdev = pci_get_slot(dev->bus, 0);
|
|
if (!pdev)
|
|
return;
|
|
if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
|
|
printk(KERN_WARNING "PCI: MSI quirk detected. "
|
|
"MSI disabled on chipset %s.\n",
|
|
pci_name(dev));
|
|
dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
|
|
}
|
|
pci_dev_put(pdev);
|
|
}
|
|
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
|
|
quirk_nvidia_ck804_msi_ht_cap);
|
|
#endif /* CONFIG_PCI_MSI */
|