blob: b3b1b9aa8863817e16812fdb65a26cb6dd1c27fd [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * This file contains work-arounds for many known PCI hardware
3 * bugs. Devices present only on certain architectures (host
4 * bridges et cetera) should be handled in arch-specific code.
5 *
6 * Note: any quirks for hotpluggable devices must _NOT_ be declared __init.
7 *
8 * Copyright (c) 1999 Martin Mares <mj@ucw.cz>
9 *
David Brownell75862692005-09-23 17:14:37 -070010 * Init/reset quirks for USB host controllers should be in the
11 * USB quirks file, where their drivers can access reuse it.
12 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 * The bridge optimization stuff has been removed. If you really
14 * have a silly BIOS which is unable to set your host bridge right,
15 * use the PowerTweak utility (see http://powertweak.sourceforge.net).
16 */
17
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include <linux/types.h>
19#include <linux/kernel.h>
Paul Gortmaker363c75d2011-05-27 09:37:25 -040020#include <linux/export.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include <linux/pci.h>
22#include <linux/init.h>
23#include <linux/delay.h>
Len Brown25be5e62005-05-27 04:21:50 -040024#include <linux/acpi.h>
bjorn.helgaas@hp.com9f23ed32007-12-17 14:09:38 -070025#include <linux/kallsyms.h>
Andreas Petlund75e07fc2008-11-20 20:42:25 -080026#include <linux/dmi.h>
Alexander Duyck649426e2009-03-05 13:57:28 -050027#include <linux/pci-aspm.h>
Yuji Shimada32a9a6822009-03-16 17:13:39 +090028#include <linux/ioport.h>
Arjan van de Ven32098742012-01-30 20:52:07 -080029#include <linux/sched.h>
30#include <linux/ktime.h>
Rafael J. Wysocki93177a72010-01-02 22:57:24 +010031#include <asm/dma.h> /* isa_dma_bridge_buggy */
Greg KHbc56b9e2005-04-08 14:53:31 +090032#include "pci.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070033
Yuji Shimada32a9a6822009-03-16 17:13:39 +090034/*
Jacob Pan253d2e52010-07-16 10:19:22 -070035 * Decoding should be disabled for a PCI device during BAR sizing to avoid
36 * conflict. But doing so may cause problems on host bridge and perhaps other
37 * key system devices. For devices that need to have mmio decoding always-on,
38 * we need to set the dev->mmio_always_on bit.
39 */
Bill Pemberton15856ad2012-11-21 15:35:00 -050040static void quirk_mmio_always_on(struct pci_dev *dev)
Jacob Pan253d2e52010-07-16 10:19:22 -070041{
Yinghai Lu52d21b52012-02-23 23:46:53 -080042 dev->mmio_always_on = 1;
Jacob Pan253d2e52010-07-16 10:19:22 -070043}
Yinghai Lu52d21b52012-02-23 23:46:53 -080044DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_ANY_ID, PCI_ANY_ID,
45 PCI_CLASS_BRIDGE_HOST, 8, quirk_mmio_always_on);
Jacob Pan253d2e52010-07-16 10:19:22 -070046
Doug Thompsonbd8481e2006-05-08 17:06:09 -070047/* The Mellanox Tavor device gives false positive parity errors
48 * Mark this device with a broken_parity_status, to allow
49 * PCI scanning code to "skip" this now blacklisted device.
50 */
Bill Pemberton15856ad2012-11-21 15:35:00 -050051static void quirk_mellanox_tavor(struct pci_dev *dev)
Doug Thompsonbd8481e2006-05-08 17:06:09 -070052{
53 dev->broken_parity_status = 1; /* This device gives false positives */
54}
55DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
56DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
57
Bjorn Helgaasf7625982013-11-14 11:28:18 -070058/* Deal with broken BIOSes that neglect to enable passive release,
Linus Torvalds1da177e2005-04-16 15:20:36 -070059 which can cause problems in combination with the 82441FX/PPro MTRRs */
Alan Cox1597cac2006-12-04 15:14:45 -080060static void quirk_passive_release(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -070061{
62 struct pci_dev *d = NULL;
63 unsigned char dlc;
64
65 /* We have to make sure a particular bit is set in the PIIX3
66 ISA bridge, so we have to go out and find it. */
67 while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
68 pci_read_config_byte(d, 0x82, &dlc);
69 if (!(dlc & 1<<1)) {
Adam Jackson999da9f2008-12-01 14:30:29 -080070 dev_info(&d->dev, "PIIX3: Enabling Passive Release\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 dlc |= 1<<1;
72 pci_write_config_byte(d, 0x82, dlc);
73 }
74 }
75}
Andrew Morton652c5382007-11-21 15:07:13 -080076DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
77DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
Linus Torvalds1da177e2005-04-16 15:20:36 -070078
79/* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
80 but VIA don't answer queries. If you happen to have good contacts at VIA
Bjorn Helgaasf7625982013-11-14 11:28:18 -070081 ask them for me please -- Alan
82
83 This appears to be BIOS not version dependent. So presumably there is a
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 chipset level fix */
Bjorn Helgaasf7625982013-11-14 11:28:18 -070085
Bill Pemberton15856ad2012-11-21 15:35:00 -050086static void quirk_isa_dma_hangs(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -070087{
88 if (!isa_dma_bridge_buggy) {
89 isa_dma_bridge_buggy=1;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -070090 dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -070091 }
92}
93 /*
94 * Its not totally clear which chipsets are the problematic ones
95 * We know 82C586 and 82C596 variants are affected.
96 */
Andrew Morton652c5382007-11-21 15:07:13 -080097DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs);
98DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs);
99DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs);
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700100DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs);
Andrew Morton652c5382007-11-21 15:07:13 -0800101DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs);
102DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs);
103DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105/*
Len Brown4731fdc2010-09-24 21:02:27 -0400106 * Intel NM10 "TigerPoint" LPC PM1a_STS.BM_STS must be clear
107 * for some HT machines to use C4 w/o hanging.
108 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500109static void quirk_tigerpoint_bm_sts(struct pci_dev *dev)
Len Brown4731fdc2010-09-24 21:02:27 -0400110{
111 u32 pmbase;
112 u16 pm1a;
113
114 pci_read_config_dword(dev, 0x40, &pmbase);
115 pmbase = pmbase & 0xff80;
116 pm1a = inw(pmbase);
117
118 if (pm1a & 0x10) {
119 dev_info(&dev->dev, FW_BUG "TigerPoint LPC.BM_STS cleared\n");
120 outw(0x10, pmbase);
121 }
122}
123DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGP_LPC, quirk_tigerpoint_bm_sts);
124
125/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126 * Chipsets where PCI->PCI transfers vanish or hang
127 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500128static void quirk_nopcipci(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129{
130 if ((pci_pci_problems & PCIPCI_FAIL)==0) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700131 dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132 pci_pci_problems |= PCIPCI_FAIL;
133 }
134}
Andrew Morton652c5382007-11-21 15:07:13 -0800135DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci);
136DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci);
Alan Cox236561e2006-09-30 23:27:03 -0700137
Bill Pemberton15856ad2012-11-21 15:35:00 -0500138static void quirk_nopciamd(struct pci_dev *dev)
Alan Cox236561e2006-09-30 23:27:03 -0700139{
140 u8 rev;
141 pci_read_config_byte(dev, 0x08, &rev);
142 if (rev == 0x13) {
143 /* Erratum 24 */
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700144 dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n");
Alan Cox236561e2006-09-30 23:27:03 -0700145 pci_pci_problems |= PCIAGP_FAIL;
146 }
147}
Andrew Morton652c5382007-11-21 15:07:13 -0800148DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149
150/*
151 * Triton requires workarounds to be used by the drivers
152 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500153static void quirk_triton(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154{
155 if ((pci_pci_problems&PCIPCI_TRITON)==0) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700156 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157 pci_pci_problems |= PCIPCI_TRITON;
158 }
159}
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700160DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton);
161DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton);
162DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton);
163DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164
165/*
166 * VIA Apollo KT133 needs PCI latency patch
167 * Made according to a windows driver based patch by George E. Breese
168 * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
Justin P. Mattock631dd1a2010-10-18 11:03:14 +0200169 * and http://www.georgebreese.com/net/software/#PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
171 * the info on which Mr Breese based his work.
172 *
173 * Updated based on further information from the site and also on
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700174 * information provided by VIA
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175 */
Alan Cox1597cac2006-12-04 15:14:45 -0800176static void quirk_vialatency(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177{
178 struct pci_dev *p;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 u8 busarb;
180 /* Ok we have a potential problem chipset here. Now see if we have
181 a buggy southbridge */
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
184 if (p!=NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
186 /* Check for buggy part revisions */
Auke Kok2b1afa82007-10-29 14:55:02 -0700187 if (p->revision < 0x40 || p->revision > 0x42)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188 goto exit;
189 } else {
190 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
191 if (p==NULL) /* No problem parts */
192 goto exit;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193 /* Check for buggy part revisions */
Auke Kok2b1afa82007-10-29 14:55:02 -0700194 if (p->revision < 0x10 || p->revision > 0x12)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 goto exit;
196 }
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198 /*
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700199 * Ok we have the problem. Now set the PCI master grant to
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200 * occur every master grant. The apparent bug is that under high
201 * PCI load (quite common in Linux of course) you can get data
202 * loss when the CPU is held off the bus for 3 bus master requests
203 * This happens to include the IDE controllers....
204 *
205 * VIA only apply this fix when an SB Live! is present but under
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300206 * both Linux and Windows this isn't enough, and we have seen
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 * corruption without SB Live! but with things like 3 UDMA IDE
208 * controllers. So we ignore that bit of the VIA recommendation..
209 */
210
211 pci_read_config_byte(dev, 0x76, &busarb);
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700212 /* Set bit 4 and bi 5 of byte 76 to 0x01
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213 "Master priority rotation on every PCI master grant */
214 busarb &= ~(1<<5);
215 busarb |= (1<<4);
216 pci_write_config_byte(dev, 0x76, busarb);
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700217 dev_info(&dev->dev, "Applying VIA southbridge workaround\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218exit:
219 pci_dev_put(p);
220}
Andrew Morton652c5382007-11-21 15:07:13 -0800221DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
222DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
223DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
Alan Cox1597cac2006-12-04 15:14:45 -0800224/* Must restore this on a resume from RAM */
Andrew Morton652c5382007-11-21 15:07:13 -0800225DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
226DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
227DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228
229/*
230 * VIA Apollo VP3 needs ETBF on BT848/878
231 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500232static void quirk_viaetbf(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233{
234 if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700235 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 pci_pci_problems |= PCIPCI_VIAETBF;
237 }
238}
Andrew Morton652c5382007-11-21 15:07:13 -0800239DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240
Bill Pemberton15856ad2012-11-21 15:35:00 -0500241static void quirk_vsfx(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242{
243 if ((pci_pci_problems&PCIPCI_VSFX)==0) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700244 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245 pci_pci_problems |= PCIPCI_VSFX;
246 }
247}
Andrew Morton652c5382007-11-21 15:07:13 -0800248DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249
250/*
251 * Ali Magik requires workarounds to be used by the drivers
252 * that DMA to AGP space. Latency must be set to 0xA and triton
253 * workaround applied too
254 * [Info kindly provided by ALi]
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700255 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500256static void quirk_alimagik(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257{
258 if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700259 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260 pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
261 }
262}
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700263DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik);
264DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265
266/*
267 * Natoma has some interesting boundary conditions with Zoran stuff
268 * at least
269 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500270static void quirk_natoma(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271{
272 if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700273 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274 pci_pci_problems |= PCIPCI_NATOMA;
275 }
276}
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700277DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma);
278DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma);
279DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma);
280DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma);
281DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma);
282DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283
284/*
285 * This chip can cause PCI parity errors if config register 0xA0 is read
286 * while DMAs are occurring.
287 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500288static void quirk_citrine(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289{
290 dev->cfg_size = 0xA0;
291}
Andrew Morton652c5382007-11-21 15:07:13 -0800292DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293
294/*
295 * S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
296 * If it's needed, re-allocate the region.
297 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500298static void quirk_s3_64M(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299{
300 struct resource *r = &dev->resource[0];
301
302 if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
303 r->start = 0;
304 r->end = 0x3ffffff;
305 }
306}
Andrew Morton652c5382007-11-21 15:07:13 -0800307DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M);
308DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309
Andres Salomon73d2eaa2010-02-05 01:42:43 -0500310/*
311 * Some CS5536 BIOSes (for example, the Soekris NET5501 board w/ comBIOS
312 * ver. 1.33 20070103) don't set the correct ISA PCI region header info.
313 * BAR0 should be 8 bytes; instead, it may be set to something like 8k
314 * (which conflicts w/ BAR1's memory range).
315 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500316static void quirk_cs5536_vsa(struct pci_dev *dev)
Andres Salomon73d2eaa2010-02-05 01:42:43 -0500317{
318 if (pci_resource_len(dev, 0) != 8) {
319 struct resource *res = &dev->resource[0];
320 res->end = res->start + 8 - 1;
321 dev_info(&dev->dev, "CS5536 ISA bridge bug detected "
322 "(incorrect header); workaround applied.\n");
323 }
324}
325DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_cs5536_vsa);
326
Yinghai Lu65195c72013-04-12 12:44:15 +0000327static void quirk_io_region(struct pci_dev *dev, int port,
328 unsigned size, int nr, const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329{
Yinghai Lu65195c72013-04-12 12:44:15 +0000330 u16 region;
331 struct pci_bus_region bus_region;
332 struct resource *res = dev->resource + nr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333
Yinghai Lu65195c72013-04-12 12:44:15 +0000334 pci_read_config_word(dev, port, &region);
335 region &= ~(size - 1);
David S. Miller085ae412005-08-08 13:19:08 -0700336
Yinghai Lu65195c72013-04-12 12:44:15 +0000337 if (!region)
338 return;
David S. Miller085ae412005-08-08 13:19:08 -0700339
Yinghai Lu65195c72013-04-12 12:44:15 +0000340 res->name = pci_name(dev);
341 res->flags = IORESOURCE_IO;
342
343 /* Convert from PCI bus to resource space */
344 bus_region.start = region;
345 bus_region.end = region + size - 1;
346 pcibios_bus_to_resource(dev, res, &bus_region);
347
348 if (!pci_claim_resource(dev, nr))
349 dev_info(&dev->dev, "quirk: %pR claimed by %s\n", res, name);
350}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351
352/*
353 * ATI Northbridge setups MCE the processor if you even
354 * read somewhere between 0x3b0->0x3bb or read 0x3d3
355 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500356static void quirk_ati_exploding_mce(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357{
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700358 dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
360 request_region(0x3b0, 0x0C, "RadeonIGP");
361 request_region(0x3d3, 0x01, "RadeonIGP");
362}
Andrew Morton652c5382007-11-21 15:07:13 -0800363DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364
365/*
366 * Let's make the southbridge information explicit instead
367 * of having to worry about people probing the ACPI areas,
368 * for example.. (Yes, it happens, and if you read the wrong
369 * ACPI register it will put the machine to sleep with no
370 * way of waking it up again. Bummer).
371 *
372 * ALI M7101: Two IO regions pointed to by words at
373 * 0xE0 (64 bytes of ACPI registers)
374 * 0xE2 (32 bytes of SMB registers)
375 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500376static void quirk_ali7101_acpi(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377{
Yinghai Lu65195c72013-04-12 12:44:15 +0000378 quirk_io_region(dev, 0xE0, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
379 quirk_io_region(dev, 0xE2, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380}
Andrew Morton652c5382007-11-21 15:07:13 -0800381DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382
Linus Torvalds6693e742005-10-25 20:40:09 -0700383static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
384{
385 u32 devres;
386 u32 mask, size, base;
387
388 pci_read_config_dword(dev, port, &devres);
389 if ((devres & enable) != enable)
390 return;
391 mask = (devres >> 16) & 15;
392 base = devres & 0xffff;
393 size = 16;
394 for (;;) {
395 unsigned bit = size >> 1;
396 if ((bit & mask) == bit)
397 break;
398 size = bit;
399 }
400 /*
401 * For now we only print it out. Eventually we'll want to
402 * reserve it (at least if it's in the 0x1000+ range), but
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700403 * let's get enough confirmation reports first.
Linus Torvalds6693e742005-10-25 20:40:09 -0700404 */
405 base &= -size;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700406 dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
Linus Torvalds6693e742005-10-25 20:40:09 -0700407}
408
409static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
410{
411 u32 devres;
412 u32 mask, size, base;
413
414 pci_read_config_dword(dev, port, &devres);
415 if ((devres & enable) != enable)
416 return;
417 base = devres & 0xffff0000;
418 mask = (devres & 0x3f) << 16;
419 size = 128 << 16;
420 for (;;) {
421 unsigned bit = size >> 1;
422 if ((bit & mask) == bit)
423 break;
424 size = bit;
425 }
426 /*
427 * For now we only print it out. Eventually we'll want to
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700428 * reserve it, but let's get enough confirmation reports first.
Linus Torvalds6693e742005-10-25 20:40:09 -0700429 */
430 base &= -size;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700431 dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
Linus Torvalds6693e742005-10-25 20:40:09 -0700432}
433
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434/*
435 * PIIX4 ACPI: Two IO regions pointed to by longwords at
436 * 0x40 (64 bytes of ACPI registers)
Linus Torvalds08db2a72005-10-30 14:40:07 -0800437 * 0x90 (16 bytes of SMB registers)
Linus Torvalds6693e742005-10-25 20:40:09 -0700438 * and a few strange programmable PIIX4 device resources.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500440static void quirk_piix4_acpi(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441{
Yinghai Lu65195c72013-04-12 12:44:15 +0000442 u32 res_a;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443
Yinghai Lu65195c72013-04-12 12:44:15 +0000444 quirk_io_region(dev, 0x40, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
445 quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
Linus Torvalds6693e742005-10-25 20:40:09 -0700446
447 /* Device resource A has enables for some of the other ones */
448 pci_read_config_dword(dev, 0x5c, &res_a);
449
450 piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
451 piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
452
453 /* Device resource D is just bitfields for static resources */
454
455 /* Device 12 enabled? */
456 if (res_a & (1 << 29)) {
457 piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
458 piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
459 }
460 /* Device 13 enabled? */
461 if (res_a & (1 << 30)) {
462 piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
463 piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
464 }
465 piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
466 piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467}
Andrew Morton652c5382007-11-21 15:07:13 -0800468DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi);
469DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470
Jiri Slabycdb97552011-02-28 10:45:09 +0100471#define ICH_PMBASE 0x40
472#define ICH_ACPI_CNTL 0x44
473#define ICH4_ACPI_EN 0x10
474#define ICH6_ACPI_EN 0x80
475#define ICH4_GPIOBASE 0x58
476#define ICH4_GPIO_CNTL 0x5c
477#define ICH4_GPIO_EN 0x10
478#define ICH6_GPIOBASE 0x48
479#define ICH6_GPIO_CNTL 0x4c
480#define ICH6_GPIO_EN 0x10
481
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482/*
483 * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
484 * 0x40 (128 bytes of ACPI, GPIO & TCO registers)
485 * 0x58 (64 bytes of GPIO I/O space)
486 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500487static void quirk_ich4_lpc_acpi(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488{
Jiri Slabycdb97552011-02-28 10:45:09 +0100489 u8 enable;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490
Jiri Slaby87e3dc32011-02-28 10:45:10 +0100491 /*
492 * The check for PCIBIOS_MIN_IO is to ensure we won't create a conflict
493 * with low legacy (and fixed) ports. We don't know the decoding
494 * priority and can't tell whether the legacy device or the one created
495 * here is really at that address. This happens on boards with broken
496 * BIOSes.
497 */
498
Jiri Slabycdb97552011-02-28 10:45:09 +0100499 pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
Yinghai Lu65195c72013-04-12 12:44:15 +0000500 if (enable & ICH4_ACPI_EN)
501 quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES,
502 "ICH4 ACPI/GPIO/TCO");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503
Jiri Slabycdb97552011-02-28 10:45:09 +0100504 pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable);
Yinghai Lu65195c72013-04-12 12:44:15 +0000505 if (enable & ICH4_GPIO_EN)
506 quirk_io_region(dev, ICH4_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1,
507 "ICH4 GPIO");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508}
Andrew Morton652c5382007-11-21 15:07:13 -0800509DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi);
510DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi);
511DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi);
512DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi);
513DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi);
514DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi);
515DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi);
516DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi);
517DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
518DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519
Bill Pemberton15856ad2012-11-21 15:35:00 -0500520static void ich6_lpc_acpi_gpio(struct pci_dev *dev)
R.Marek@sh.cvut.cz2cea7522005-09-27 21:54:51 +0000521{
Jiri Slabycdb97552011-02-28 10:45:09 +0100522 u8 enable;
R.Marek@sh.cvut.cz2cea7522005-09-27 21:54:51 +0000523
Jiri Slabycdb97552011-02-28 10:45:09 +0100524 pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
Yinghai Lu65195c72013-04-12 12:44:15 +0000525 if (enable & ICH6_ACPI_EN)
526 quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES,
527 "ICH6 ACPI/GPIO/TCO");
R.Marek@sh.cvut.cz2cea7522005-09-27 21:54:51 +0000528
Jiri Slabycdb97552011-02-28 10:45:09 +0100529 pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable);
Yinghai Lu65195c72013-04-12 12:44:15 +0000530 if (enable & ICH6_GPIO_EN)
531 quirk_io_region(dev, ICH6_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1,
532 "ICH6 GPIO");
R.Marek@sh.cvut.cz2cea7522005-09-27 21:54:51 +0000533}
Linus Torvalds894886e2008-12-06 10:10:10 -0800534
Bill Pemberton15856ad2012-11-21 15:35:00 -0500535static void ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize)
Linus Torvalds894886e2008-12-06 10:10:10 -0800536{
537 u32 val;
538 u32 size, base;
539
540 pci_read_config_dword(dev, reg, &val);
541
542 /* Enabled? */
543 if (!(val & 1))
544 return;
545 base = val & 0xfffc;
546 if (dynsize) {
547 /*
548 * This is not correct. It is 16, 32 or 64 bytes depending on
549 * register D31:F0:ADh bits 5:4.
550 *
551 * But this gets us at least _part_ of it.
552 */
553 size = 16;
554 } else {
555 size = 128;
556 }
557 base &= ~(size-1);
558
559 /* Just print it out for now. We should reserve it after more debugging */
560 dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base+size-1);
561}
562
Bill Pemberton15856ad2012-11-21 15:35:00 -0500563static void quirk_ich6_lpc(struct pci_dev *dev)
Linus Torvalds894886e2008-12-06 10:10:10 -0800564{
565 /* Shared ACPI/GPIO decode with all ICH6+ */
566 ich6_lpc_acpi_gpio(dev);
567
568 /* ICH6-specific generic IO decode */
569 ich6_lpc_generic_decode(dev, 0x84, "LPC Generic IO decode 1", 0);
570 ich6_lpc_generic_decode(dev, 0x88, "LPC Generic IO decode 2", 1);
571}
572DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc);
573DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc);
574
Bill Pemberton15856ad2012-11-21 15:35:00 -0500575static void ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name)
Linus Torvalds894886e2008-12-06 10:10:10 -0800576{
577 u32 val;
578 u32 mask, base;
579
580 pci_read_config_dword(dev, reg, &val);
581
582 /* Enabled? */
583 if (!(val & 1))
584 return;
585
586 /*
587 * IO base in bits 15:2, mask in bits 23:18, both
588 * are dword-based
589 */
590 base = val & 0xfffc;
591 mask = (val >> 16) & 0xfc;
592 mask |= 3;
593
594 /* Just print it out for now. We should reserve it after more debugging */
595 dev_info(&dev->dev, "%s PIO at %04x (mask %04x)\n", name, base, mask);
596}
597
598/* ICH7-10 has the same common LPC generic IO decode registers */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500599static void quirk_ich7_lpc(struct pci_dev *dev)
Linus Torvalds894886e2008-12-06 10:10:10 -0800600{
Jean Delvare5d9c0a72011-04-15 10:03:53 +0200601 /* We share the common ACPI/GPIO decode with ICH6 */
Linus Torvalds894886e2008-12-06 10:10:10 -0800602 ich6_lpc_acpi_gpio(dev);
603
604 /* And have 4 ICH7+ generic decodes */
605 ich7_lpc_generic_decode(dev, 0x84, "ICH7 LPC Generic IO decode 1");
606 ich7_lpc_generic_decode(dev, 0x88, "ICH7 LPC Generic IO decode 2");
607 ich7_lpc_generic_decode(dev, 0x8c, "ICH7 LPC Generic IO decode 3");
608 ich7_lpc_generic_decode(dev, 0x90, "ICH7 LPC Generic IO decode 4");
609}
610DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich7_lpc);
611DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich7_lpc);
612DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich7_lpc);
613DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich7_lpc);
614DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich7_lpc);
615DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich7_lpc);
616DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich7_lpc);
617DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich7_lpc);
618DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich7_lpc);
619DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich7_lpc);
620DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich7_lpc);
621DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich7_lpc);
622DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1, quirk_ich7_lpc);
R.Marek@sh.cvut.cz2cea7522005-09-27 21:54:51 +0000623
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624/*
625 * VIA ACPI: One IO region pointed to by longword at
626 * 0x48 or 0x20 (256 bytes of ACPI registers)
627 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500628static void quirk_vt82c586_acpi(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629{
Yinghai Lu65195c72013-04-12 12:44:15 +0000630 if (dev->revision & 0x10)
631 quirk_io_region(dev, 0x48, 256, PCI_BRIDGE_RESOURCES,
632 "vt82c586 ACPI");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633}
Andrew Morton652c5382007-11-21 15:07:13 -0800634DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635
636/*
637 * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
638 * 0x48 (256 bytes of ACPI registers)
639 * 0x70 (128 bytes of hardware monitoring register)
640 * 0x90 (16 bytes of SMB registers)
641 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500642static void quirk_vt82c686_acpi(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644 quirk_vt82c586_acpi(dev);
645
Yinghai Lu65195c72013-04-12 12:44:15 +0000646 quirk_io_region(dev, 0x70, 128, PCI_BRIDGE_RESOURCES+1,
647 "vt82c686 HW-mon");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648
Yinghai Lu65195c72013-04-12 12:44:15 +0000649 quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+2, "vt82c686 SMB");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650}
Andrew Morton652c5382007-11-21 15:07:13 -0800651DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652
Ivan Kokshaysky6d85f292005-08-08 12:55:54 +0400653/*
654 * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
655 * 0x88 (128 bytes of power management registers)
656 * 0xd0 (16 bytes of SMB registers)
657 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500658static void quirk_vt8235_acpi(struct pci_dev *dev)
Ivan Kokshaysky6d85f292005-08-08 12:55:54 +0400659{
Yinghai Lu65195c72013-04-12 12:44:15 +0000660 quirk_io_region(dev, 0x88, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
661 quirk_io_region(dev, 0xd0, 16, PCI_BRIDGE_RESOURCES+1, "vt8235 SMB");
Ivan Kokshaysky6d85f292005-08-08 12:55:54 +0400662}
663DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
664
Gabe Black1f56f4a2009-10-06 09:19:45 -0500665/*
666 * TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back:
667 * Disable fast back-to-back on the secondary bus segment
668 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500669static void quirk_xio2000a(struct pci_dev *dev)
Gabe Black1f56f4a2009-10-06 09:19:45 -0500670{
671 struct pci_dev *pdev;
672 u16 command;
673
674 dev_warn(&dev->dev, "TI XIO2000a quirk detected; "
675 "secondary bus fast back-to-back transfers disabled\n");
676 list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) {
677 pci_read_config_word(pdev, PCI_COMMAND, &command);
678 if (command & PCI_COMMAND_FAST_BACK)
679 pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK);
680 }
681}
682DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A,
683 quirk_xio2000a);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700685#ifdef CONFIG_X86_IO_APIC
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686
687#include <asm/io_apic.h>
688
689/*
690 * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
691 * devices to the external APIC.
692 *
693 * TODO: When we have device-specific interrupt routers,
694 * this code will go away from quirks.
695 */
Alan Cox1597cac2006-12-04 15:14:45 -0800696static void quirk_via_ioapic(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697{
698 u8 tmp;
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700699
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700 if (nr_ioapics < 1)
701 tmp = 0; /* nothing routed to external APIC */
702 else
703 tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700704
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700705 dev_info(&dev->dev, "%sbling VIA external APIC routing\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 tmp == 0 ? "Disa" : "Ena");
707
708 /* Offset 0x58: External APIC IRQ output control */
709 pci_write_config_byte (dev, 0x58, tmp);
710}
Andrew Morton652c5382007-11-21 15:07:13 -0800711DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +0200712DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713
714/*
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700715 * VIA 8237: Some BIOSes don't set the 'Bypass APIC De-Assert Message' Bit.
Karsten Wiesea1740912005-09-03 15:56:33 -0700716 * This leads to doubled level interrupt rates.
717 * Set this bit to get rid of cycle wastage.
718 * Otherwise uncritical.
719 */
Alan Cox1597cac2006-12-04 15:14:45 -0800720static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
Karsten Wiesea1740912005-09-03 15:56:33 -0700721{
722 u8 misc_control2;
723#define BYPASS_APIC_DEASSERT 8
724
725 pci_read_config_byte(dev, 0x5B, &misc_control2);
726 if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700727 dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
Karsten Wiesea1740912005-09-03 15:56:33 -0700728 pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
729 }
730}
731DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +0200732DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
Karsten Wiesea1740912005-09-03 15:56:33 -0700733
734/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735 * The AMD io apic can hang the box when an apic irq is masked.
736 * We check all revs >= B0 (yet not in the pre production!) as the bug
737 * is currently marked NoFix
738 *
739 * We have multiple reports of hangs with this chipset that went away with
Alan Cox236561e2006-09-30 23:27:03 -0700740 * noapic specified. For the moment we assume it's the erratum. We may be wrong
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741 * of course. However the advice is demonstrably good even if so..
742 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500743static void quirk_amd_ioapic(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744{
Auke Kok44c10132007-06-08 15:46:36 -0700745 if (dev->revision >= 0x02) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700746 dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
747 dev_warn(&dev->dev, " : booting with the \"noapic\" option\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748 }
749}
Andrew Morton652c5382007-11-21 15:07:13 -0800750DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751
Bill Pemberton15856ad2012-11-21 15:35:00 -0500752static void quirk_ioapic_rmw(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753{
754 if (dev->devfn == 0 && dev->bus->number == 0)
755 sis_apic_bug = 1;
756}
Andrew Morton652c5382007-11-21 15:07:13 -0800757DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758#endif /* CONFIG_X86_IO_APIC */
759
Peter Orubad556ad42007-05-15 13:59:13 +0200760/*
761 * Some settings of MMRBC can lead to data corruption so block changes.
762 * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
763 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500764static void quirk_amd_8131_mmrbc(struct pci_dev *dev)
Peter Orubad556ad42007-05-15 13:59:13 +0200765{
Auke Kokaa288d42007-08-27 16:17:47 -0700766 if (dev->subordinate && dev->revision <= 0x12) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700767 dev_info(&dev->dev, "AMD8131 rev %x detected; "
768 "disabling PCI-X MMRBC\n", dev->revision);
Peter Orubad556ad42007-05-15 13:59:13 +0200769 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
770 }
771}
772DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773
774/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775 * FIXME: it is questionable that quirk_via_acpi
776 * is needed. It shows up as an ISA bridge, and does not
777 * support the PCI_INTERRUPT_LINE register at all. Therefore
778 * it seems like setting the pci_dev's 'irq' to the
779 * value of the ACPI SCI interrupt is only done for convenience.
780 * -jgarzik
781 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500782static void quirk_via_acpi(struct pci_dev *d)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783{
784 /*
785 * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
786 */
787 u8 irq;
788 pci_read_config_byte(d, 0x42, &irq);
789 irq &= 0xf;
790 if (irq && (irq != 2))
791 d->irq = irq;
792}
Andrew Morton652c5382007-11-21 15:07:13 -0800793DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi);
794DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795
Daniel Drake09d60292006-09-25 16:52:19 -0700796
797/*
Alan Cox1597cac2006-12-04 15:14:45 -0800798 * VIA bridges which have VLink
Daniel Drake09d60292006-09-25 16:52:19 -0700799 */
Alan Cox1597cac2006-12-04 15:14:45 -0800800
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800801static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
802
803static void quirk_via_bridge(struct pci_dev *dev)
804{
805 /* See what bridge we have and find the device ranges */
806 switch (dev->device) {
807 case PCI_DEVICE_ID_VIA_82C686:
Jean Delvarecb7468e2007-01-31 23:48:12 -0800808 /* The VT82C686 is special, it attaches to PCI and can have
809 any device number. All its subdevices are functions of
810 that single device. */
811 via_vlink_dev_lo = PCI_SLOT(dev->devfn);
812 via_vlink_dev_hi = PCI_SLOT(dev->devfn);
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800813 break;
814 case PCI_DEVICE_ID_VIA_8237:
815 case PCI_DEVICE_ID_VIA_8237A:
816 via_vlink_dev_lo = 15;
817 break;
818 case PCI_DEVICE_ID_VIA_8235:
819 via_vlink_dev_lo = 16;
820 break;
821 case PCI_DEVICE_ID_VIA_8231:
822 case PCI_DEVICE_ID_VIA_8233_0:
823 case PCI_DEVICE_ID_VIA_8233A:
824 case PCI_DEVICE_ID_VIA_8233C_0:
825 via_vlink_dev_lo = 17;
826 break;
827 }
828}
829DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
830DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
831DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
832DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
833DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
834DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
835DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
836DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
Daniel Drake09d60292006-09-25 16:52:19 -0700837
Alan Cox1597cac2006-12-04 15:14:45 -0800838/**
839 * quirk_via_vlink - VIA VLink IRQ number update
840 * @dev: PCI device
841 *
842 * If the device we are dealing with is on a PIC IRQ we need to
843 * ensure that the IRQ line register which usually is not relevant
844 * for PCI cards, is actually written so that interrupts get sent
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800845 * to the right place.
846 * We only do this on systems where a VIA south bridge was detected,
847 * and only for VIA devices on the motherboard (see quirk_via_bridge
848 * above).
Alan Cox1597cac2006-12-04 15:14:45 -0800849 */
850
851static void quirk_via_vlink(struct pci_dev *dev)
Len Brown25be5e62005-05-27 04:21:50 -0400852{
853 u8 irq, new_irq;
854
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800855 /* Check if we have VLink at all */
856 if (via_vlink_dev_lo == -1)
Daniel Drake09d60292006-09-25 16:52:19 -0700857 return;
858
859 new_irq = dev->irq;
860
861 /* Don't quirk interrupts outside the legacy IRQ range */
862 if (!new_irq || new_irq > 15)
863 return;
864
Alan Cox1597cac2006-12-04 15:14:45 -0800865 /* Internal device ? */
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800866 if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
867 PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
Alan Cox1597cac2006-12-04 15:14:45 -0800868 return;
869
870 /* This is an internal VLink device on a PIC interrupt. The BIOS
871 ought to have set this but may not have, so we redo it */
872
Len Brown25be5e62005-05-27 04:21:50 -0400873 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
874 if (new_irq != irq) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700875 dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n",
876 irq, new_irq);
Len Brown25be5e62005-05-27 04:21:50 -0400877 udelay(15); /* unknown if delay really needed */
878 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
879 }
880}
Alan Cox1597cac2006-12-04 15:14:45 -0800881DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
Len Brown25be5e62005-05-27 04:21:50 -0400882
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884 * VIA VT82C598 has its device ID settable and many BIOSes
885 * set it to the ID of VT82C597 for backward compatibility.
886 * We need to switch it off to be able to recognize the real
887 * type of the chip.
888 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500889static void quirk_vt82c598_id(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890{
891 pci_write_config_byte(dev, 0xfc, 0);
892 pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
893}
Andrew Morton652c5382007-11-21 15:07:13 -0800894DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895
896/*
897 * CardBus controllers have a legacy base address that enables them
898 * to respond as i82365 pcmcia controllers. We don't want them to
899 * do this even if the Linux CardBus driver is not loaded, because
900 * the Linux i82365 driver does not (and should not) handle CardBus.
901 */
Alan Cox1597cac2006-12-04 15:14:45 -0800902static void quirk_cardbus_legacy(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904 pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
905}
Yinghai Luae9de562012-02-23 23:46:54 -0800906DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
907 PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy);
908DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID,
909 PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910
911/*
912 * Following the PCI ordering rules is optional on the AMD762. I'm not
913 * sure what the designers were smoking but let's not inhale...
914 *
915 * To be fair to AMD, it follows the spec by default, its BIOS people
916 * who turn it off!
917 */
Alan Cox1597cac2006-12-04 15:14:45 -0800918static void quirk_amd_ordering(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919{
920 u32 pcic;
921 pci_read_config_dword(dev, 0x4C, &pcic);
922 if ((pcic&6)!=6) {
923 pcic |= 6;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700924 dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 pci_write_config_dword(dev, 0x4C, pcic);
926 pci_read_config_dword(dev, 0x84, &pcic);
927 pcic |= (1<<23); /* Required in this mode */
928 pci_write_config_dword(dev, 0x84, pcic);
929 }
930}
Andrew Morton652c5382007-11-21 15:07:13 -0800931DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +0200932DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933
934/*
935 * DreamWorks provided workaround for Dunord I-3000 problem
936 *
937 * This card decodes and responds to addresses not apparently
938 * assigned to it. We force a larger allocation to ensure that
939 * nothing gets put too close to it.
940 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500941static void quirk_dunord(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942{
943 struct resource *r = &dev->resource [1];
944 r->start = 0;
945 r->end = 0xffffff;
946}
Andrew Morton652c5382007-11-21 15:07:13 -0800947DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948
949/*
950 * i82380FB mobile docking controller: its PCI-to-PCI bridge
951 * is subtractive decoding (transparent), and does indicate this
952 * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
953 * instead of 0x01.
954 */
Bill Pemberton15856ad2012-11-21 15:35:00 -0500955static void quirk_transparent_bridge(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956{
957 dev->transparent = 1;
958}
Andrew Morton652c5382007-11-21 15:07:13 -0800959DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge);
960DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
962/*
963 * Common misconfiguration of the MediaGX/Geode PCI master that will
964 * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
Justin P. Mattock631dd1a2010-10-18 11:03:14 +0200965 * datasheets found at http://www.national.com/analog for info on what
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966 * these bits do. <christer@weinigel.se>
967 */
Alan Cox1597cac2006-12-04 15:14:45 -0800968static void quirk_mediagx_master(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969{
970 u8 reg;
971 pci_read_config_byte(dev, 0x41, &reg);
972 if (reg & 2) {
973 reg &= ~2;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700974 dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975 pci_write_config_byte(dev, 0x41, reg);
976 }
977}
Andrew Morton652c5382007-11-21 15:07:13 -0800978DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
979DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980
981/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982 * Ensure C0 rev restreaming is off. This is normally done by
983 * the BIOS but in the odd case it is not the results are corruption
984 * hence the presence of a Linux check
985 */
Alan Cox1597cac2006-12-04 15:14:45 -0800986static void quirk_disable_pxb(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987{
988 u16 config;
Bjorn Helgaasf7625982013-11-14 11:28:18 -0700989
Auke Kok44c10132007-06-08 15:46:36 -0700990 if (pdev->revision != 0x04) /* Only C0 requires this */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991 return;
992 pci_read_config_word(pdev, 0x40, &config);
993 if (config & (1<<6)) {
994 config &= ~(1<<6);
995 pci_write_config_word(pdev, 0x40, config);
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700996 dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997 }
998}
Andrew Morton652c5382007-11-21 15:07:13 -0800999DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001000DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
Myron Stowe25e742b2012-07-09 15:36:14 -06001002static void quirk_amd_ide_mode(struct pci_dev *pdev)
Conke Huab174432006-12-19 13:11:37 -08001003{
Shane Huang5deab532009-10-13 11:14:00 +08001004 /* set SBX00/Hudson-2 SATA in IDE mode to AHCI mode */
Crane Cai05a7d222008-02-02 13:56:56 +08001005 u8 tmp;
Conke Huab174432006-12-19 13:11:37 -08001006
Crane Cai05a7d222008-02-02 13:56:56 +08001007 pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
1008 if (tmp == 0x01) {
Conke Huab174432006-12-19 13:11:37 -08001009 pci_read_config_byte(pdev, 0x40, &tmp);
1010 pci_write_config_byte(pdev, 0x40, tmp|1);
1011 pci_write_config_byte(pdev, 0x9, 1);
1012 pci_write_config_byte(pdev, 0xa, 6);
1013 pci_write_config_byte(pdev, 0x40, tmp);
1014
Conke Huc9f89472007-01-09 05:32:51 -05001015 pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
Crane Cai05a7d222008-02-02 13:56:56 +08001016 dev_info(&pdev->dev, "set SATA to AHCI mode\n");
Conke Huab174432006-12-19 13:11:37 -08001017 }
1018}
Crane Cai05a7d222008-02-02 13:56:56 +08001019DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001020DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
Crane Cai05a7d222008-02-02 13:56:56 +08001021DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001022DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
Shane Huang5deab532009-10-13 11:14:00 +08001023DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
1024DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
Shane Huangfafe5c3d82013-06-03 18:24:10 +08001025DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode);
1026DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode);
Conke Huab174432006-12-19 13:11:37 -08001027
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028/*
1029 * Serverworks CSB5 IDE does not fully support native mode
1030 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05001031static void quirk_svwks_csb5ide(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032{
1033 u8 prog;
1034 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
1035 if (prog & 5) {
1036 prog &= ~5;
1037 pdev->class &= ~5;
1038 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
Alan Cox368c73d2006-10-04 00:41:26 +01001039 /* PCI layer will sort out resources */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040 }
1041}
Andrew Morton652c5382007-11-21 15:07:13 -08001042DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043
1044/*
1045 * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
1046 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05001047static void quirk_ide_samemode(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048{
1049 u8 prog;
1050
1051 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
1052
1053 if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001054 dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055 prog &= ~5;
1056 pdev->class &= ~5;
1057 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058 }
1059}
Alan Cox368c73d2006-10-04 00:41:26 +01001060DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061
Alan Cox979b1792008-07-24 17:18:38 +01001062/*
1063 * Some ATA devices break if put into D3
1064 */
1065
Bill Pemberton15856ad2012-11-21 15:35:00 -05001066static void quirk_no_ata_d3(struct pci_dev *pdev)
Alan Cox979b1792008-07-24 17:18:38 +01001067{
Yinghai Lufaa738b2012-02-23 23:46:55 -08001068 pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
Alan Cox979b1792008-07-24 17:18:38 +01001069}
Yinghai Lufaa738b2012-02-23 23:46:55 -08001070/* Quirk the legacy ATA devices only. The AHCI ones are ok */
1071DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID,
1072 PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
1073DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
1074 PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
Alan Cox7a661c62009-06-24 16:02:27 +01001075/* ALi loses some register settings that we cannot then restore */
Yinghai Lufaa738b2012-02-23 23:46:55 -08001076DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID,
1077 PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
Alan Cox7a661c62009-06-24 16:02:27 +01001078/* VIA comes back fine but we need to keep it alive or ACPI GTM failures
1079 occur when mode detecting */
Yinghai Lufaa738b2012-02-23 23:46:55 -08001080DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID,
1081 PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
Alan Cox979b1792008-07-24 17:18:38 +01001082
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083/* This was originally an Alpha specific thing, but it really fits here.
1084 * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
1085 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05001086static void quirk_eisa_bridge(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087{
1088 dev->class = PCI_CLASS_BRIDGE_EISA << 8;
1089}
Andrew Morton652c5382007-11-21 15:07:13 -08001090DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091
Johannes Goecke7daa0c42006-04-20 02:43:17 -07001092
1093/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094 * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
1095 * is not activated. The myth is that Asus said that they do not want the
1096 * users to be irritated by just another PCI Device in the Win98 device
Bjorn Helgaasf7625982013-11-14 11:28:18 -07001097 * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098 * package 2.7.0 for details)
1099 *
Bjorn Helgaasf7625982013-11-14 11:28:18 -07001100 * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
1101 * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
gw.kernel@tnode.comd7698ed2007-08-23 21:22:04 +02001102 * becomes necessary to do this tweak in two steps -- the chosen trigger
1103 * is either the Host bridge (preferred) or on-board VGA controller.
Jean Delvare9208ee82007-03-24 16:56:44 +01001104 *
1105 * Note that we used to unhide the SMBus that way on Toshiba laptops
1106 * (Satellite A40 and Tecra M2) but then found that the thermal management
1107 * was done by SMM code, which could cause unsynchronized concurrent
1108 * accesses to the SMBus registers, with potentially bad effects. Thus you
1109 * should be very careful when adding new entries: if SMM is accessing the
1110 * Intel SMBus, this is a very good reason to leave it hidden.
Jean Delvarea99acc82008-03-28 14:16:04 -07001111 *
1112 * Likewise, many recent laptops use ACPI for thermal management. If the
1113 * ACPI DSDT code accesses the SMBus, then Linux should not access it
1114 * natively, and keeping the SMBus hidden is the right thing to do. If you
1115 * are about to add an entry in the table below, please first disassemble
1116 * the DSDT and double-check that there is no code accessing the SMBus.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001117 */
Vivek Goyal9d24a812007-01-11 01:52:44 +01001118static int asus_hides_smbus;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119
Bill Pemberton15856ad2012-11-21 15:35:00 -05001120static void asus_hides_smbus_hostbridge(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121{
1122 if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1123 if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
1124 switch(dev->subsystem_device) {
Jean Delvarea00db372005-06-29 17:04:06 +02001125 case 0x8025: /* P4B-LX */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126 case 0x8070: /* P4B */
1127 case 0x8088: /* P4B533 */
1128 case 0x1626: /* L3C notebook */
1129 asus_hides_smbus = 1;
1130 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001131 else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132 switch(dev->subsystem_device) {
1133 case 0x80b1: /* P4GE-V */
1134 case 0x80b2: /* P4PE */
1135 case 0x8093: /* P4B533-V */
1136 asus_hides_smbus = 1;
1137 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001138 else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001139 switch(dev->subsystem_device) {
1140 case 0x8030: /* P4T533 */
1141 asus_hides_smbus = 1;
1142 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001143 else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144 switch (dev->subsystem_device) {
1145 case 0x8070: /* P4G8X Deluxe */
1146 asus_hides_smbus = 1;
1147 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001148 else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
Jean Delvare321311a2006-07-31 08:53:15 +02001149 switch (dev->subsystem_device) {
1150 case 0x80c9: /* PU-DLS */
1151 asus_hides_smbus = 1;
1152 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001153 else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001154 switch (dev->subsystem_device) {
1155 case 0x1751: /* M2N notebook */
1156 case 0x1821: /* M5N notebook */
Mats Erik Andersson4096ed02009-05-12 12:05:23 +02001157 case 0x1897: /* A6L notebook */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158 asus_hides_smbus = 1;
1159 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001160 else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161 switch (dev->subsystem_device) {
1162 case 0x184b: /* W1N notebook */
1163 case 0x186a: /* M6Ne notebook */
1164 asus_hides_smbus = 1;
1165 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001166 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
Jean Delvare2e457852007-01-05 09:17:56 +01001167 switch (dev->subsystem_device) {
1168 case 0x80f2: /* P4P800-X */
1169 asus_hides_smbus = 1;
1170 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001171 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001172 switch (dev->subsystem_device) {
1173 case 0x1882: /* M6V notebook */
Jean Delvare2d1e1c72006-04-01 16:46:35 +02001174 case 0x1977: /* A6VA notebook */
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001175 asus_hides_smbus = 1;
1176 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
1178 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1179 switch(dev->subsystem_device) {
1180 case 0x088C: /* HP Compaq nc8000 */
1181 case 0x0890: /* HP Compaq nc6000 */
1182 asus_hides_smbus = 1;
1183 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001184 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185 switch (dev->subsystem_device) {
1186 case 0x12bc: /* HP D330L */
Jean Delvaree3b1bd52005-09-21 22:26:31 +02001187 case 0x12bd: /* HP D530 */
Michal Miroslaw74c57422009-05-12 13:49:25 -07001188 case 0x006a: /* HP Compaq nx9500 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189 asus_hides_smbus = 1;
1190 }
Jean Delvare677cc642007-11-21 18:29:06 +01001191 else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
1192 switch (dev->subsystem_device) {
1193 case 0x12bf: /* HP xw4100 */
1194 asus_hides_smbus = 1;
1195 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
1197 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1198 switch(dev->subsystem_device) {
1199 case 0xC00C: /* Samsung P35 notebook */
1200 asus_hides_smbus = 1;
1201 }
Rumen Ivanov Zarevc87f8832005-09-06 13:39:32 -07001202 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
1203 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1204 switch(dev->subsystem_device) {
1205 case 0x0058: /* Compaq Evo N620c */
1206 asus_hides_smbus = 1;
1207 }
gw.kernel@tnode.comd7698ed2007-08-23 21:22:04 +02001208 else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
1209 switch(dev->subsystem_device) {
1210 case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
1211 /* Motherboard doesn't have Host bridge
1212 * subvendor/subdevice IDs, therefore checking
1213 * its on-board VGA controller */
1214 asus_hides_smbus = 1;
1215 }
David O'Shea8293b0f2009-03-02 09:51:13 +01001216 else if (dev->device == PCI_DEVICE_ID_INTEL_82801DB_2)
Jean Delvare10260d92008-06-04 13:53:31 +02001217 switch(dev->subsystem_device) {
1218 case 0x00b8: /* Compaq Evo D510 CMT */
1219 case 0x00b9: /* Compaq Evo D510 SFF */
Jean Delvare6b5096e2009-07-28 11:49:19 +02001220 case 0x00ba: /* Compaq Evo D510 USDT */
David O'Shea8293b0f2009-03-02 09:51:13 +01001221 /* Motherboard doesn't have Host bridge
1222 * subvendor/subdevice IDs and on-board VGA
1223 * controller is disabled if an AGP card is
1224 * inserted, therefore checking USB UHCI
1225 * Controller #1 */
Jean Delvare10260d92008-06-04 13:53:31 +02001226 asus_hides_smbus = 1;
1227 }
Krzysztof Helt27e46852008-06-08 13:47:02 +02001228 else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC)
1229 switch (dev->subsystem_device) {
1230 case 0x001A: /* Compaq Deskpro EN SSF P667 815E */
1231 /* Motherboard doesn't have host bridge
1232 * subvendor/subdevice IDs, therefore checking
1233 * its on-board VGA controller */
1234 asus_hides_smbus = 1;
1235 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001236 }
1237}
Andrew Morton652c5382007-11-21 15:07:13 -08001238DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge);
1239DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge);
1240DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge);
1241DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge);
Jean Delvare677cc642007-11-21 18:29:06 +01001242DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge);
Andrew Morton652c5382007-11-21 15:07:13 -08001243DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge);
1244DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge);
1245DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge);
1246DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge);
1247DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248
Andrew Morton652c5382007-11-21 15:07:13 -08001249DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge);
David O'Shea8293b0f2009-03-02 09:51:13 +01001250DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_2, asus_hides_smbus_hostbridge);
Krzysztof Helt27e46852008-06-08 13:47:02 +02001251DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge);
gw.kernel@tnode.comd7698ed2007-08-23 21:22:04 +02001252
Alan Cox1597cac2006-12-04 15:14:45 -08001253static void asus_hides_smbus_lpc(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254{
1255 u16 val;
Bjorn Helgaasf7625982013-11-14 11:28:18 -07001256
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257 if (likely(!asus_hides_smbus))
1258 return;
1259
1260 pci_read_config_word(dev, 0xF2, &val);
1261 if (val & 0x8) {
1262 pci_write_config_word(dev, 0xF2, val & (~0x8));
1263 pci_read_config_word(dev, 0xF2, &val);
1264 if (val & 0x8)
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001265 dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001266 else
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001267 dev_info(&dev->dev, "Enabled i801 SMBus device\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268 }
1269}
Andrew Morton652c5382007-11-21 15:07:13 -08001270DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1271DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1272DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1273DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1274DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1275DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1276DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001277DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1278DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1279DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1280DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1281DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1282DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1283DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001285/* It appears we just have one such device. If not, we have a warning */
1286static void __iomem *asus_rcba_base;
1287static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev)
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001288{
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001289 u32 rcba;
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001290
1291 if (likely(!asus_hides_smbus))
1292 return;
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001293 WARN_ON(asus_rcba_base);
1294
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001295 pci_read_config_dword(dev, 0xF0, &rcba);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001296 /* use bits 31:14, 16 kB aligned */
1297 asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000);
1298 if (asus_rcba_base == NULL)
1299 return;
1300}
1301
1302static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev)
1303{
1304 u32 val;
1305
1306 if (likely(!asus_hides_smbus || !asus_rcba_base))
1307 return;
1308 /* read the Function Disable register, dword mode only */
1309 val = readl(asus_rcba_base + 0x3418);
1310 writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */
1311}
1312
1313static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev)
1314{
1315 if (likely(!asus_hides_smbus || !asus_rcba_base))
1316 return;
1317 iounmap(asus_rcba_base);
1318 asus_rcba_base = NULL;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001319 dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n");
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001320}
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001321
1322static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
1323{
1324 asus_hides_smbus_lpc_ich6_suspend(dev);
1325 asus_hides_smbus_lpc_ich6_resume_early(dev);
1326 asus_hides_smbus_lpc_ich6_resume(dev);
1327}
Andrew Morton652c5382007-11-21 15:07:13 -08001328DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001329DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend);
1330DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume);
1331DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early);
Carl-Daniel Hailfingerce007ea2006-05-15 09:44:33 -07001332
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333/*
1334 * SiS 96x south bridge: BIOS typically hides SMBus device...
1335 */
Alan Cox1597cac2006-12-04 15:14:45 -08001336static void quirk_sis_96x_smbus(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001337{
1338 u8 val = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339 pci_read_config_byte(dev, 0x77, &val);
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001340 if (val & 0x10) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001341 dev_info(&dev->dev, "Enabling SiS 96x SMBus\n");
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001342 pci_write_config_byte(dev, 0x77, val & ~0x10);
1343 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344}
Andrew Morton652c5382007-11-21 15:07:13 -08001345DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1346DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1347DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1348DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001349DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1350DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1351DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1352DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001353
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354/*
1355 * ... This is further complicated by the fact that some SiS96x south
1356 * bridges pretend to be 85C503/5513 instead. In that case see if we
1357 * spotted a compatible north bridge to make sure.
1358 * (pci_find_device doesn't work yet)
1359 *
1360 * We can also enable the sis96x bit in the discovery register..
1361 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001362#define SIS_DETECT_REGISTER 0x40
1363
Alan Cox1597cac2006-12-04 15:14:45 -08001364static void quirk_sis_503(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365{
1366 u8 reg;
1367 u16 devid;
1368
1369 pci_read_config_byte(dev, SIS_DETECT_REGISTER, &reg);
1370 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
1371 pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
1372 if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
1373 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
1374 return;
1375 }
1376
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377 /*
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001378 * Ok, it now shows up as a 96x.. run the 96x quirk by
1379 * hand in case it has already been processed.
1380 * (depends on link order, which is apparently not guaranteed)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381 */
1382 dev->device = devid;
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001383 quirk_sis_96x_smbus(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384}
Andrew Morton652c5382007-11-21 15:07:13 -08001385DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001386DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388
Bauke Jan Doumae5548e92006-02-28 21:44:36 +01001389/*
1390 * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
1391 * and MC97 modem controller are disabled when a second PCI soundcard is
1392 * present. This patch, tweaking the VT8237 ISA bridge, enables them.
1393 * -- bjd
1394 */
Alan Cox1597cac2006-12-04 15:14:45 -08001395static void asus_hides_ac97_lpc(struct pci_dev *dev)
Bauke Jan Doumae5548e92006-02-28 21:44:36 +01001396{
1397 u8 val;
1398 int asus_hides_ac97 = 0;
1399
1400 if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1401 if (dev->device == PCI_DEVICE_ID_VIA_8237)
1402 asus_hides_ac97 = 1;
1403 }
1404
1405 if (!asus_hides_ac97)
1406 return;
1407
1408 pci_read_config_byte(dev, 0x50, &val);
1409 if (val & 0xc0) {
1410 pci_write_config_byte(dev, 0x50, val & (~0xc0));
1411 pci_read_config_byte(dev, 0x50, &val);
1412 if (val & 0xc0)
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001413 dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
Bauke Jan Doumae5548e92006-02-28 21:44:36 +01001414 else
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001415 dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n");
Bauke Jan Doumae5548e92006-02-28 21:44:36 +01001416 }
1417}
Andrew Morton652c5382007-11-21 15:07:13 -08001418DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001419DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
Alan Cox1597cac2006-12-04 15:14:45 -08001420
Tejun Heo77967052006-08-19 03:54:39 +09001421#if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
Alan Cox15e0c692006-07-12 15:05:41 +01001422
1423/*
1424 * If we are using libata we can drive this chip properly but must
1425 * do this early on to make the additional device appear during
1426 * the PCI scanning.
1427 */
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001428static void quirk_jmicron_ata(struct pci_dev *pdev)
Alan Cox15e0c692006-07-12 15:05:41 +01001429{
Tejun Heoe34bb372007-02-26 20:24:03 +09001430 u32 conf1, conf5, class;
Alan Cox15e0c692006-07-12 15:05:41 +01001431 u8 hdr;
1432
1433 /* Only poke fn 0 */
1434 if (PCI_FUNC(pdev->devfn))
1435 return;
1436
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001437 pci_read_config_dword(pdev, 0x40, &conf1);
1438 pci_read_config_dword(pdev, 0x80, &conf5);
Alan Cox15e0c692006-07-12 15:05:41 +01001439
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001440 conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
1441 conf5 &= ~(1 << 24); /* Clear bit 24 */
Alan Cox15e0c692006-07-12 15:05:41 +01001442
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001443 switch (pdev->device) {
Tejun Heo4daedcf2010-06-03 11:57:04 +02001444 case PCI_DEVICE_ID_JMICRON_JMB360: /* SATA single port */
1445 case PCI_DEVICE_ID_JMICRON_JMB362: /* SATA dual ports */
Tejun Heo5b6ae5b2010-07-30 11:42:42 +02001446 case PCI_DEVICE_ID_JMICRON_JMB364: /* SATA dual ports */
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001447 /* The controller should be in single function ahci mode */
1448 conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
1449 break;
Alan Cox15e0c692006-07-12 15:05:41 +01001450
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001451 case PCI_DEVICE_ID_JMICRON_JMB365:
1452 case PCI_DEVICE_ID_JMICRON_JMB366:
1453 /* Redirect IDE second PATA port to the right spot */
1454 conf5 |= (1 << 24);
1455 /* Fall through */
1456 case PCI_DEVICE_ID_JMICRON_JMB361:
1457 case PCI_DEVICE_ID_JMICRON_JMB363:
Tejun Heo5b6ae5b2010-07-30 11:42:42 +02001458 case PCI_DEVICE_ID_JMICRON_JMB369:
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001459 /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
1460 /* Set the class codes correctly and then direct IDE 0 */
Tejun Heo3a9e3a52007-10-23 15:27:31 +09001461 conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001462 break;
1463
1464 case PCI_DEVICE_ID_JMICRON_JMB368:
1465 /* The controller should be in single function IDE mode */
1466 conf1 |= 0x00C00000; /* Set 22, 23 */
1467 break;
Alan Cox15e0c692006-07-12 15:05:41 +01001468 }
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001469
1470 pci_write_config_dword(pdev, 0x40, conf1);
1471 pci_write_config_dword(pdev, 0x80, conf5);
1472
1473 /* Update pdev accordingly */
1474 pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
1475 pdev->hdr_type = hdr & 0x7f;
1476 pdev->multifunction = !!(hdr & 0x80);
Tejun Heoe34bb372007-02-26 20:24:03 +09001477
1478 pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
1479 pdev->class = class >> 8;
Alan Cox15e0c692006-07-12 15:05:41 +01001480}
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001481DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1482DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
Tejun Heo4daedcf2010-06-03 11:57:04 +02001483DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001484DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
Tejun Heo5b6ae5b2010-07-30 11:42:42 +02001485DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata);
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001486DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1487DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1488DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
Tejun Heo5b6ae5b2010-07-30 11:42:42 +02001489DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001490DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1491DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
Tejun Heo4daedcf2010-06-03 11:57:04 +02001492DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001493DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
Tejun Heo5b6ae5b2010-07-30 11:42:42 +02001494DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001495DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1496DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1497DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
Tejun Heo5b6ae5b2010-07-30 11:42:42 +02001498DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata);
Alan Cox15e0c692006-07-12 15:05:41 +01001499
1500#endif
1501
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502#ifdef CONFIG_X86_IO_APIC
Bill Pemberton15856ad2012-11-21 15:35:00 -05001503static void quirk_alder_ioapic(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504{
1505 int i;
1506
1507 if ((pdev->class >> 8) != 0xff00)
1508 return;
1509
1510 /* the first BAR is the location of the IO APIC...we must
1511 * not touch this (and it's already covered by the fixmap), so
1512 * forcibly insert it into the resource tree */
1513 if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
1514 insert_resource(&iomem_resource, &pdev->resource[0]);
1515
1516 /* The next five BARs all seem to be rubbish, so just clean
1517 * them out */
1518 for (i=1; i < 6; i++) {
1519 memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
1520 }
1521
1522}
Andrew Morton652c5382007-11-21 15:07:13 -08001523DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001524#endif
1525
Bill Pemberton15856ad2012-11-21 15:35:00 -05001526static void quirk_pcie_mch(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527{
Eric W. Biederman0ba379e2009-09-06 21:48:35 -07001528 pci_msi_off(pdev);
1529 pdev->no_msi = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001530}
Andrew Morton652c5382007-11-21 15:07:13 -08001531DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
1532DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
1533DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001534
Kristen Accardi4602b882005-08-16 15:15:58 -07001535
1536/*
1537 * It's possible for the MSI to get corrupted if shpc and acpi
1538 * are used together on certain PXH-based systems.
1539 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05001540static void quirk_pcie_pxh(struct pci_dev *dev)
Kristen Accardi4602b882005-08-16 15:15:58 -07001541{
Eric W. Biedermanf5f2b132007-03-05 00:30:07 -08001542 pci_msi_off(dev);
Kristen Accardi4602b882005-08-16 15:15:58 -07001543 dev->no_msi = 1;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001544 dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n");
Kristen Accardi4602b882005-08-16 15:15:58 -07001545}
1546DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
1547DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
1548DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
1549DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
1550DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
1551
Kristen Carlson Accardiffadcc22006-07-12 08:59:00 -07001552/*
1553 * Some Intel PCI Express chipsets have trouble with downstream
1554 * device power management.
1555 */
1556static void quirk_intel_pcie_pm(struct pci_dev * dev)
1557{
1558 pci_pm_d3_delay = 120;
1559 dev->no_d1d2 = 1;
1560}
1561
1562DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
1563DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
1564DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
1565DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
1566DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
1567DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
1568DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
1569DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
1570DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
1571DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
1572DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
1573DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
1574DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
1575DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
1576DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
1577DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
1578DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
1579DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
1580DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
1581DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
1582DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
Kristen Accardi4602b882005-08-16 15:15:58 -07001583
Stefan Assmann426b3b82008-06-11 16:35:16 +02001584#ifdef CONFIG_X86_IO_APIC
1585/*
Stefan Assmanne1d3a902008-06-11 16:35:17 +02001586 * Boot interrupts on some chipsets cannot be turned off. For these chipsets,
1587 * remap the original interrupt in the linux kernel to the boot interrupt, so
1588 * that a PCI device's interrupt handler is installed on the boot interrupt
1589 * line instead.
1590 */
1591static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev)
1592{
Stefan Assmann41b9eb22008-07-15 13:48:55 +02001593 if (noioapicquirk || noioapicreroute)
Stefan Assmanne1d3a902008-06-11 16:35:17 +02001594 return;
1595
1596 dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT;
Bjorn Helgaasfdcdaf62009-09-14 14:36:41 -06001597 dev_info(&dev->dev, "rerouting interrupts for [%04x:%04x]\n",
1598 dev->vendor, dev->device);
Stefan Assmanne1d3a902008-06-11 16:35:17 +02001599}
Olaf Dabrunz88d1dce2008-07-08 15:59:48 +02001600DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1601DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1602DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1603DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1604DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1605DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1606DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1607DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
1608DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1609DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1610DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1611DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1612DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1613DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1614DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1615DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
Stefan Assmanne1d3a902008-06-11 16:35:17 +02001616
1617/*
Stefan Assmann426b3b82008-06-11 16:35:16 +02001618 * On some chipsets we can disable the generation of legacy INTx boot
1619 * interrupts.
1620 */
1621
1622/*
1623 * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no
1624 * 300641-004US, section 5.7.3.
1625 */
1626#define INTEL_6300_IOAPIC_ABAR 0x40
1627#define INTEL_6300_DISABLE_BOOT_IRQ (1<<14)
1628
1629static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
1630{
1631 u16 pci_config_word;
1632
1633 if (noioapicquirk)
1634 return;
1635
1636 pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word);
1637 pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ;
1638 pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word);
1639
Bjorn Helgaasfdcdaf62009-09-14 14:36:41 -06001640 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1641 dev->vendor, dev->device);
Stefan Assmann426b3b82008-06-11 16:35:16 +02001642}
Bjorn Helgaasf7625982013-11-14 11:28:18 -07001643DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
1644DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
Olaf Dabrunz77251182008-07-08 15:59:47 +02001645
1646/*
1647 * disable boot interrupts on HT-1000
1648 */
1649#define BC_HT1000_FEATURE_REG 0x64
1650#define BC_HT1000_PIC_REGS_ENABLE (1<<0)
1651#define BC_HT1000_MAP_IDX 0xC00
1652#define BC_HT1000_MAP_DATA 0xC01
1653
1654static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
1655{
1656 u32 pci_config_dword;
1657 u8 irq;
1658
1659 if (noioapicquirk)
1660 return;
1661
1662 pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
1663 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
1664 BC_HT1000_PIC_REGS_ENABLE);
1665
1666 for (irq = 0x10; irq < 0x10 + 32; irq++) {
1667 outb(irq, BC_HT1000_MAP_IDX);
1668 outb(0x00, BC_HT1000_MAP_DATA);
1669 }
1670
1671 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
1672
Bjorn Helgaasfdcdaf62009-09-14 14:36:41 -06001673 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1674 dev->vendor, dev->device);
Olaf Dabrunz77251182008-07-08 15:59:47 +02001675}
Bjorn Helgaasf7625982013-11-14 11:28:18 -07001676DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
1677DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001678
1679/*
1680 * disable boot interrupts on AMD and ATI chipsets
1681 */
1682/*
1683 * NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131
1684 * rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode
1685 * (due to an erratum).
1686 */
1687#define AMD_813X_MISC 0x40
1688#define AMD_813X_NOIOAMODE (1<<0)
Stefan Assmann4fd8bdc2009-10-27 08:57:42 +01001689#define AMD_813X_REV_B1 0x12
Stefan Assmannbbe19442009-02-26 10:46:48 -08001690#define AMD_813X_REV_B2 0x13
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001691
1692static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
1693{
1694 u32 pci_config_dword;
1695
1696 if (noioapicquirk)
1697 return;
Stefan Assmann4fd8bdc2009-10-27 08:57:42 +01001698 if ((dev->revision == AMD_813X_REV_B1) ||
1699 (dev->revision == AMD_813X_REV_B2))
Stefan Assmannbbe19442009-02-26 10:46:48 -08001700 return;
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001701
1702 pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
1703 pci_config_dword &= ~AMD_813X_NOIOAMODE;
1704 pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword);
1705
Bjorn Helgaasfdcdaf62009-09-14 14:36:41 -06001706 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1707 dev->vendor, dev->device);
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001708}
Stefan Assmann4fd8bdc2009-10-27 08:57:42 +01001709DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1710DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1711DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1712DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001713
1714#define AMD_8111_PCI_IRQ_ROUTING 0x56
1715
1716static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev)
1717{
1718 u16 pci_config_word;
1719
1720 if (noioapicquirk)
1721 return;
1722
1723 pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word);
1724 if (!pci_config_word) {
Bjorn Helgaasfdcdaf62009-09-14 14:36:41 -06001725 dev_info(&dev->dev, "boot interrupts on device [%04x:%04x] "
1726 "already disabled\n", dev->vendor, dev->device);
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001727 return;
1728 }
1729 pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0);
Bjorn Helgaasfdcdaf62009-09-14 14:36:41 -06001730 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1731 dev->vendor, dev->device);
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001732}
Bjorn Helgaasf7625982013-11-14 11:28:18 -07001733DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
1734DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
Stefan Assmann426b3b82008-06-11 16:35:16 +02001735#endif /* CONFIG_X86_IO_APIC */
1736
Sergei Shtylyov33dced22007-02-07 18:18:45 +01001737/*
1738 * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
1739 * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
1740 * Re-allocate the region if needed...
1741 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05001742static void quirk_tc86c001_ide(struct pci_dev *dev)
Sergei Shtylyov33dced22007-02-07 18:18:45 +01001743{
1744 struct resource *r = &dev->resource[0];
1745
1746 if (r->start & 0x8) {
1747 r->start = 0;
1748 r->end = 0xf;
1749 }
1750}
1751DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
1752 PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
1753 quirk_tc86c001_ide);
1754
Ian Abbott21c5fd92012-10-30 17:25:53 +00001755/*
1756 * PLX PCI 9050 PCI Target bridge controller has an errata that prevents the
1757 * local configuration registers accessible via BAR0 (memory) or BAR1 (i/o)
1758 * being read correctly if bit 7 of the base address is set.
1759 * The BAR0 or BAR1 region may be disabled (size 0) or enabled (size 128).
1760 * Re-allocate the regions to a 256-byte boundary if necessary.
1761 */
Linus Torvalds193c0d62012-12-13 12:14:47 -08001762static void quirk_plx_pci9050(struct pci_dev *dev)
Ian Abbott21c5fd92012-10-30 17:25:53 +00001763{
1764 unsigned int bar;
1765
1766 /* Fixed in revision 2 (PCI 9052). */
1767 if (dev->revision >= 2)
1768 return;
1769 for (bar = 0; bar <= 1; bar++)
1770 if (pci_resource_len(dev, bar) == 0x80 &&
1771 (pci_resource_start(dev, bar) & 0x80)) {
1772 struct resource *r = &dev->resource[bar];
1773 dev_info(&dev->dev,
1774 "Re-allocating PLX PCI 9050 BAR %u to length 256 to avoid bit 7 bug\n",
1775 bar);
1776 r->start = 0;
1777 r->end = 0xff;
1778 }
1779}
1780DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
1781 quirk_plx_pci9050);
Ian Abbott2794bb22012-10-29 14:40:18 +00001782/*
1783 * The following Meilhaus (vendor ID 0x1402) device IDs (amongst others)
1784 * may be using the PLX PCI 9050: 0x0630, 0x0940, 0x0950, 0x0960, 0x100b,
1785 * 0x1400, 0x140a, 0x140b, 0x14e0, 0x14ea, 0x14eb, 0x1604, 0x1608, 0x160c,
1786 * 0x168f, 0x2000, 0x2600, 0x3000, 0x810a, 0x810b.
1787 *
1788 * Currently, device IDs 0x2000 and 0x2600 are used by the Comedi "me_daq"
1789 * driver.
1790 */
1791DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2000, quirk_plx_pci9050);
1792DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2600, quirk_plx_pci9050);
Ian Abbott21c5fd92012-10-30 17:25:53 +00001793
Bill Pemberton15856ad2012-11-21 15:35:00 -05001794static void quirk_netmos(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795{
1796 unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
1797 unsigned int num_serial = dev->subsystem_device & 0xf;
1798
1799 /*
1800 * These Netmos parts are multiport serial devices with optional
1801 * parallel ports. Even when parallel ports are present, they
1802 * are identified as class SERIAL, which means the serial driver
1803 * will claim them. To prevent this, mark them as class OTHER.
1804 * These combo devices should be claimed by parport_serial.
1805 *
1806 * The subdevice ID is of the form 0x00PS, where <P> is the number
1807 * of parallel ports and <S> is the number of serial ports.
1808 */
1809 switch (dev->device) {
Jiri Slaby4c9c1682008-12-08 16:19:14 +01001810 case PCI_DEVICE_ID_NETMOS_9835:
1811 /* Well, this rule doesn't hold for the following 9835 device */
1812 if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
1813 dev->subsystem_device == 0x0299)
1814 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001815 case PCI_DEVICE_ID_NETMOS_9735:
1816 case PCI_DEVICE_ID_NETMOS_9745:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001817 case PCI_DEVICE_ID_NETMOS_9845:
1818 case PCI_DEVICE_ID_NETMOS_9855:
Yinghai Lu08803ef2012-02-23 23:46:56 -08001819 if (num_parallel) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001820 dev_info(&dev->dev, "Netmos %04x (%u parallel, "
Linus Torvalds1da177e2005-04-16 15:20:36 -07001821 "%u serial); changing class SERIAL to OTHER "
1822 "(use parport_serial)\n",
1823 dev->device, num_parallel, num_serial);
1824 dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
1825 (dev->class & 0xff);
1826 }
1827 }
1828}
Yinghai Lu08803ef2012-02-23 23:46:56 -08001829DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID,
1830 PCI_CLASS_COMMUNICATION_SERIAL, 8, quirk_netmos);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001831
Bill Pemberton15856ad2012-11-21 15:35:00 -05001832static void quirk_e100_interrupt(struct pci_dev *dev)
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001833{
Ivan Kokshayskye64aecc2007-12-18 00:39:27 +03001834 u16 command, pmcsr;
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001835 u8 __iomem *csr;
1836 u8 cmd_hi;
1837
1838 switch (dev->device) {
1839 /* PCI IDs taken from drivers/net/e100.c */
1840 case 0x1029:
1841 case 0x1030 ... 0x1034:
1842 case 0x1038 ... 0x103E:
1843 case 0x1050 ... 0x1057:
1844 case 0x1059:
1845 case 0x1064 ... 0x106B:
1846 case 0x1091 ... 0x1095:
1847 case 0x1209:
1848 case 0x1229:
1849 case 0x2449:
1850 case 0x2459:
1851 case 0x245D:
1852 case 0x27DC:
1853 break;
1854 default:
1855 return;
1856 }
1857
1858 /*
1859 * Some firmware hands off the e100 with interrupts enabled,
1860 * which can cause a flood of interrupts if packets are
1861 * received before the driver attaches to the device. So
1862 * disable all e100 interrupts here. The driver will
1863 * re-enable them when it's ready.
1864 */
1865 pci_read_config_word(dev, PCI_COMMAND, &command);
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001866
Benjamin Herrenschmidt1bef7dc2007-09-29 09:06:21 +10001867 if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001868 return;
1869
Ivan Kokshayskye64aecc2007-12-18 00:39:27 +03001870 /*
1871 * Check that the device is in the D0 power state. If it's not,
1872 * there is no point to look any further.
1873 */
Yijing Wang728cdb72013-06-18 16:22:14 +08001874 if (dev->pm_cap) {
1875 pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr);
Ivan Kokshayskye64aecc2007-12-18 00:39:27 +03001876 if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
1877 return;
1878 }
1879
Benjamin Herrenschmidt1bef7dc2007-09-29 09:06:21 +10001880 /* Convert from PCI bus to resource space. */
1881 csr = ioremap(pci_resource_start(dev, 0), 8);
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001882 if (!csr) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001883 dev_warn(&dev->dev, "Can't map e100 registers\n");
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001884 return;
1885 }
1886
1887 cmd_hi = readb(csr + 3);
1888 if (cmd_hi == 0) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001889 dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; "
1890 "disabling\n");
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001891 writeb(1, csr + 3);
1892 }
1893
1894 iounmap(csr);
1895}
Yinghai Lu4c5b28e2012-02-23 23:46:57 -08001896DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
1897 PCI_CLASS_NETWORK_ETHERNET, 8, quirk_e100_interrupt);
Ivan Kokshayskya5312e22005-11-01 01:43:56 +03001898
Alexander Duyck649426e2009-03-05 13:57:28 -05001899/*
1900 * The 82575 and 82598 may experience data corruption issues when transitioning
1901 * out of L0S. To prevent this we need to disable L0S on the pci-e link
1902 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05001903static void quirk_disable_aspm_l0s(struct pci_dev *dev)
Alexander Duyck649426e2009-03-05 13:57:28 -05001904{
1905 dev_info(&dev->dev, "Disabling L0s\n");
1906 pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
1907}
1908DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s);
1909DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s);
1910DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s);
1911DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s);
1912DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s);
1913DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s);
1914DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s);
1915DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s);
1916DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s);
1917DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s);
1918DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s);
1919DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
1920DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
1921DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
1922
Bill Pemberton15856ad2012-11-21 15:35:00 -05001923static void fixup_rev1_53c810(struct pci_dev *dev)
Ivan Kokshayskya5312e22005-11-01 01:43:56 +03001924{
1925 /* rev 1 ncr53c810 chips don't set the class at all which means
1926 * they don't get their resources remapped. Fix that here.
1927 */
1928
1929 if (dev->class == PCI_CLASS_NOT_DEFINED) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001930 dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n");
Ivan Kokshayskya5312e22005-11-01 01:43:56 +03001931 dev->class = PCI_CLASS_STORAGE_SCSI;
1932 }
1933}
1934DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
1935
Daniel Yeisley9d265122005-12-05 07:06:43 -05001936/* Enable 1k I/O space granularity on the Intel P64H2 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05001937static void quirk_p64h2_1k_io(struct pci_dev *dev)
Daniel Yeisley9d265122005-12-05 07:06:43 -05001938{
1939 u16 en1k;
Daniel Yeisley9d265122005-12-05 07:06:43 -05001940
1941 pci_read_config_word(dev, 0x40, &en1k);
1942
1943 if (en1k & 0x200) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001944 dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n");
Bjorn Helgaas2b28ae12012-07-09 13:38:57 -06001945 dev->io_window_1k = 1;
Daniel Yeisley9d265122005-12-05 07:06:43 -05001946 }
1947}
1948DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
1949
Brice Goglincf34a8e2006-06-13 14:35:42 -04001950/* Under some circumstances, AER is not linked with extended capabilities.
1951 * Force it to be linked by setting the corresponding control bit in the
1952 * config space.
1953 */
Alan Cox1597cac2006-12-04 15:14:45 -08001954static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
Brice Goglincf34a8e2006-06-13 14:35:42 -04001955{
1956 uint8_t b;
1957 if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
1958 if (!(b & 0x20)) {
1959 pci_write_config_byte(dev, 0xf41, b | 0x20);
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001960 dev_info(&dev->dev,
1961 "Linking AER extended capability\n");
Brice Goglincf34a8e2006-06-13 14:35:42 -04001962 }
1963 }
1964}
1965DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1966 quirk_nvidia_ck804_pcie_aer_ext_cap);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001967DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
Alan Cox1597cac2006-12-04 15:14:45 -08001968 quirk_nvidia_ck804_pcie_aer_ext_cap);
Brice Goglincf34a8e2006-06-13 14:35:42 -04001969
Bill Pemberton15856ad2012-11-21 15:35:00 -05001970static void quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
Tim Yamin53a9bf42007-11-01 23:14:54 +00001971{
1972 /*
1973 * Disable PCI Bus Parking and PCI Master read caching on CX700
1974 * which causes unspecified timing errors with a VT6212L on the PCI
Tim Yaminca846392010-03-19 14:22:58 -07001975 * bus leading to USB2.0 packet loss.
1976 *
1977 * This quirk is only enabled if a second (on the external PCI bus)
1978 * VT6212L is found -- the CX700 core itself also contains a USB
1979 * host controller with the same PCI ID as the VT6212L.
Tim Yamin53a9bf42007-11-01 23:14:54 +00001980 */
1981
Tim Yaminca846392010-03-19 14:22:58 -07001982 /* Count VT6212L instances */
1983 struct pci_dev *p = pci_get_device(PCI_VENDOR_ID_VIA,
1984 PCI_DEVICE_ID_VIA_8235_USB_2, NULL);
Tim Yamin53a9bf42007-11-01 23:14:54 +00001985 uint8_t b;
Tim Yaminca846392010-03-19 14:22:58 -07001986
1987 /* p should contain the first (internal) VT6212L -- see if we have
1988 an external one by searching again */
1989 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235_USB_2, p);
1990 if (!p)
1991 return;
1992 pci_dev_put(p);
1993
Tim Yamin53a9bf42007-11-01 23:14:54 +00001994 if (pci_read_config_byte(dev, 0x76, &b) == 0) {
1995 if (b & 0x40) {
1996 /* Turn off PCI Bus Parking */
1997 pci_write_config_byte(dev, 0x76, b ^ 0x40);
1998
Tim Yaminbc043272008-03-30 20:58:59 +01001999 dev_info(&dev->dev,
2000 "Disabling VIA CX700 PCI parking\n");
2001 }
2002 }
2003
2004 if (pci_read_config_byte(dev, 0x72, &b) == 0) {
2005 if (b != 0) {
Tim Yamin53a9bf42007-11-01 23:14:54 +00002006 /* Turn off PCI Master read caching */
2007 pci_write_config_byte(dev, 0x72, 0x0);
Tim Yaminbc043272008-03-30 20:58:59 +01002008
2009 /* Set PCI Master Bus time-out to "1x16 PCLK" */
Tim Yamin53a9bf42007-11-01 23:14:54 +00002010 pci_write_config_byte(dev, 0x75, 0x1);
Tim Yaminbc043272008-03-30 20:58:59 +01002011
2012 /* Disable "Read FIFO Timer" */
Tim Yamin53a9bf42007-11-01 23:14:54 +00002013 pci_write_config_byte(dev, 0x77, 0x0);
2014
Bjorn Helgaasd6505a52008-02-29 16:12:18 -07002015 dev_info(&dev->dev,
Tim Yaminbc043272008-03-30 20:58:59 +01002016 "Disabling VIA CX700 PCI caching\n");
Tim Yamin53a9bf42007-11-01 23:14:54 +00002017 }
2018 }
2019}
Tim Yaminca846392010-03-19 14:22:58 -07002020DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
Tim Yamin53a9bf42007-11-01 23:14:54 +00002021
Benjamin Li99cb233d2008-07-02 10:59:04 -07002022/*
2023 * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
2024 * VPD end tag will hang the device. This problem was initially
2025 * observed when a vpd entry was created in sysfs
2026 * ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry
2027 * will dump 32k of data. Reading a full 32k will cause an access
2028 * beyond the VPD end tag causing the device to hang. Once the device
2029 * is hung, the bnx2 driver will not be able to reset the device.
2030 * We believe that it is legal to read beyond the end tag and
2031 * therefore the solution is to limit the read/write length.
2032 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05002033static void quirk_brcm_570x_limit_vpd(struct pci_dev *dev)
Benjamin Li99cb233d2008-07-02 10:59:04 -07002034{
Eric Dumazet9d82d8e2008-07-31 20:27:31 +02002035 /*
Dean Hildebrand35405f22008-08-07 17:31:45 -07002036 * Only disable the VPD capability for 5706, 5706S, 5708,
2037 * 5708S and 5709 rev. A
Eric Dumazet9d82d8e2008-07-31 20:27:31 +02002038 */
Benjamin Li99cb233d2008-07-02 10:59:04 -07002039 if ((dev->device == PCI_DEVICE_ID_NX2_5706) ||
Dean Hildebrand35405f22008-08-07 17:31:45 -07002040 (dev->device == PCI_DEVICE_ID_NX2_5706S) ||
Benjamin Li99cb233d2008-07-02 10:59:04 -07002041 (dev->device == PCI_DEVICE_ID_NX2_5708) ||
Eric Dumazet9d82d8e2008-07-31 20:27:31 +02002042 (dev->device == PCI_DEVICE_ID_NX2_5708S) ||
Benjamin Li99cb233d2008-07-02 10:59:04 -07002043 ((dev->device == PCI_DEVICE_ID_NX2_5709) &&
2044 (dev->revision & 0xf0) == 0x0)) {
2045 if (dev->vpd)
2046 dev->vpd->len = 0x80;
2047 }
2048}
2049
Yu Zhaobffadff2008-10-28 14:44:11 +08002050DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2051 PCI_DEVICE_ID_NX2_5706,
2052 quirk_brcm_570x_limit_vpd);
2053DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2054 PCI_DEVICE_ID_NX2_5706S,
2055 quirk_brcm_570x_limit_vpd);
2056DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2057 PCI_DEVICE_ID_NX2_5708,
2058 quirk_brcm_570x_limit_vpd);
2059DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2060 PCI_DEVICE_ID_NX2_5708S,
2061 quirk_brcm_570x_limit_vpd);
2062DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2063 PCI_DEVICE_ID_NX2_5709,
2064 quirk_brcm_570x_limit_vpd);
2065DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2066 PCI_DEVICE_ID_NX2_5709S,
2067 quirk_brcm_570x_limit_vpd);
Benjamin Li99cb233d2008-07-02 10:59:04 -07002068
Myron Stowe25e742b2012-07-09 15:36:14 -06002069static void quirk_brcm_5719_limit_mrrs(struct pci_dev *dev)
Matt Carlson0b471502012-02-27 09:44:48 +00002070{
2071 u32 rev;
2072
2073 pci_read_config_dword(dev, 0xf4, &rev);
2074
2075 /* Only CAP the MRRS if the device is a 5719 A0 */
2076 if (rev == 0x05719000) {
2077 int readrq = pcie_get_readrq(dev);
2078 if (readrq > 2048)
2079 pcie_set_readrq(dev, 2048);
2080 }
2081}
2082
2083DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_BROADCOM,
2084 PCI_DEVICE_ID_TIGON3_5719,
2085 quirk_brcm_5719_limit_mrrs);
2086
Michal Miroslaw26c56dc2009-05-12 13:49:26 -07002087/* Originally in EDAC sources for i82875P:
2088 * Intel tells BIOS developers to hide device 6 which
2089 * configures the overflow device access containing
2090 * the DRBs - this is where we expose device 6.
2091 * http://www.x86-secret.com/articles/tweak/pat/patsecrets-2.htm
2092 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05002093static void quirk_unhide_mch_dev6(struct pci_dev *dev)
Michal Miroslaw26c56dc2009-05-12 13:49:26 -07002094{
2095 u8 reg;
2096
2097 if (pci_read_config_byte(dev, 0xF4, &reg) == 0 && !(reg & 0x02)) {
2098 dev_info(&dev->dev, "Enabling MCH 'Overflow' Device\n");
2099 pci_write_config_byte(dev, 0xF4, reg | 0x02);
2100 }
2101}
2102
2103DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB,
2104 quirk_unhide_mch_dev6);
2105DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB,
2106 quirk_unhide_mch_dev6);
2107
Chris Metcalf12962262012-04-07 17:10:17 -04002108#ifdef CONFIG_TILEPRO
Chris Metcalff02cbbe2010-11-02 12:05:10 -04002109/*
Chris Metcalf12962262012-04-07 17:10:17 -04002110 * The Tilera TILEmpower tilepro platform needs to set the link speed
Chris Metcalff02cbbe2010-11-02 12:05:10 -04002111 * to 2.5GT(Giga-Transfers)/s (Gen 1). The default link speed
2112 * setting is 5GT/s (Gen 2). 0x98 is the Link Control2 PCIe
2113 * capability register of the PEX8624 PCIe switch. The switch
2114 * supports link speed auto negotiation, but falsely sets
2115 * the link speed to 5GT/s.
2116 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05002117static void quirk_tile_plx_gen1(struct pci_dev *dev)
Chris Metcalff02cbbe2010-11-02 12:05:10 -04002118{
2119 if (tile_plx_gen1) {
2120 pci_write_config_dword(dev, 0x98, 0x1);
2121 mdelay(50);
2122 }
2123}
2124DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8624, quirk_tile_plx_gen1);
Chris Metcalf12962262012-04-07 17:10:17 -04002125#endif /* CONFIG_TILEPRO */
Michal Miroslaw26c56dc2009-05-12 13:49:26 -07002126
Brice Goglin3f79e102006-08-31 01:54:56 -04002127#ifdef CONFIG_PCI_MSI
Tejun Heoebdf7d32007-05-31 00:40:48 -07002128/* Some chipsets do not support MSI. We cannot easily rely on setting
2129 * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
Bjorn Helgaasf7625982013-11-14 11:28:18 -07002130 * some other buses controlled by the chipset even if Linux is not
2131 * aware of it. Instead of setting the flag on all buses in the
Tejun Heoebdf7d32007-05-31 00:40:48 -07002132 * machine, simply disable MSI globally.
Brice Goglin3f79e102006-08-31 01:54:56 -04002133 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05002134static void quirk_disable_all_msi(struct pci_dev *dev)
Brice Goglin3f79e102006-08-31 01:54:56 -04002135{
Michael Ellerman88187df2007-01-25 19:34:07 +11002136 pci_no_msi();
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07002137 dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n");
Brice Goglin3f79e102006-08-31 01:54:56 -04002138}
Tejun Heoebdf7d32007-05-31 00:40:48 -07002139DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
2140DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
2141DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
Tejun Heo66d715c2008-07-04 09:59:32 -07002142DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
Jay Cliburn184b8122007-05-26 17:01:04 -05002143DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
Thomas Renninger162dedd2009-04-03 06:34:00 -07002144DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi);
Tejun Heo549e1562010-05-23 10:22:55 +02002145DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi);
Brice Goglin3f79e102006-08-31 01:54:56 -04002146
2147/* Disable MSI on chipsets that are known to not support it */
Bill Pemberton15856ad2012-11-21 15:35:00 -05002148static void quirk_disable_msi(struct pci_dev *dev)
Brice Goglin3f79e102006-08-31 01:54:56 -04002149{
2150 if (dev->subordinate) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07002151 dev_warn(&dev->dev, "MSI quirk detected; "
2152 "subordinate MSI disabled\n");
Brice Goglin3f79e102006-08-31 01:54:56 -04002153 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2154 }
2155}
2156DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
Matthew Wilcox134b3452010-03-24 07:11:01 -06002157DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0xa238, quirk_disable_msi);
Alex Deucher9313ff42010-05-18 10:42:53 -04002158DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x5a3f, quirk_disable_msi);
Brice Goglin6397c752006-08-31 01:55:32 -04002159
Clemens Ladischaff61362010-05-26 12:21:10 +02002160/*
2161 * The APC bridge device in AMD 780 family northbridges has some random
2162 * OEM subsystem ID in its vendor ID register (erratum 18), so instead
2163 * we use the possible vendor/device IDs of the host bridge for the
2164 * declared quirk, and search for the APC bridge by slot number.
2165 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05002166static void quirk_amd_780_apc_msi(struct pci_dev *host_bridge)
Clemens Ladischaff61362010-05-26 12:21:10 +02002167{
2168 struct pci_dev *apc_bridge;
2169
2170 apc_bridge = pci_get_slot(host_bridge->bus, PCI_DEVFN(1, 0));
2171 if (apc_bridge) {
2172 if (apc_bridge->device == 0x9602)
2173 quirk_disable_msi(apc_bridge);
2174 pci_dev_put(apc_bridge);
2175 }
2176}
2177DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9600, quirk_amd_780_apc_msi);
2178DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9601, quirk_amd_780_apc_msi);
2179
Brice Goglin6397c752006-08-31 01:55:32 -04002180/* Go through the list of Hypertransport capabilities and
2181 * return 1 if a HT MSI capability is found and enabled */
Myron Stowe25e742b2012-07-09 15:36:14 -06002182static int msi_ht_cap_enabled(struct pci_dev *dev)
Brice Goglin6397c752006-08-31 01:55:32 -04002183{
Michael Ellerman7a380502006-11-22 18:26:21 +11002184 int pos, ttl = 48;
2185
2186 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2187 while (pos && ttl--) {
2188 u8 flags;
2189
2190 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2191 &flags) == 0)
2192 {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07002193 dev_info(&dev->dev, "Found %s HT MSI Mapping\n",
Michael Ellerman7a380502006-11-22 18:26:21 +11002194 flags & HT_MSI_FLAGS_ENABLE ?
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07002195 "enabled" : "disabled");
Michael Ellerman7a380502006-11-22 18:26:21 +11002196 return (flags & HT_MSI_FLAGS_ENABLE) != 0;
Brice Goglin6397c752006-08-31 01:55:32 -04002197 }
Michael Ellerman7a380502006-11-22 18:26:21 +11002198
2199 pos = pci_find_next_ht_capability(dev, pos,
2200 HT_CAPTYPE_MSI_MAPPING);
Brice Goglin6397c752006-08-31 01:55:32 -04002201 }
2202 return 0;
2203}
2204
2205/* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
Myron Stowe25e742b2012-07-09 15:36:14 -06002206static void quirk_msi_ht_cap(struct pci_dev *dev)
Brice Goglin6397c752006-08-31 01:55:32 -04002207{
2208 if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07002209 dev_warn(&dev->dev, "MSI quirk detected; "
2210 "subordinate MSI disabled\n");
Brice Goglin6397c752006-08-31 01:55:32 -04002211 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2212 }
2213}
2214DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
2215 quirk_msi_ht_cap);
Sebastien Dugue6bae1d92007-12-13 16:09:25 -08002216
Brice Goglin6397c752006-08-31 01:55:32 -04002217/* The nVidia CK804 chipset may have 2 HT MSI mappings.
2218 * MSI are supported if the MSI capability set in any of these mappings.
2219 */
Myron Stowe25e742b2012-07-09 15:36:14 -06002220static void quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
Brice Goglin6397c752006-08-31 01:55:32 -04002221{
2222 struct pci_dev *pdev;
2223
2224 if (!dev->subordinate)
2225 return;
2226
2227 /* check HT MSI cap on this chipset and the root one.
2228 * a single one having MSI is enough to be sure that MSI are supported.
2229 */
Alan Cox11f242f2006-10-10 14:39:00 -07002230 pdev = pci_get_slot(dev->bus, 0);
Jesper Juhl9ac0ce82006-12-04 15:14:48 -08002231 if (!pdev)
2232 return;
David Rientjes0c875c22006-12-03 11:55:34 -08002233 if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07002234 dev_warn(&dev->dev, "MSI quirk detected; "
2235 "subordinate MSI disabled\n");
Brice Goglin6397c752006-08-31 01:55:32 -04002236 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2237 }
Alan Cox11f242f2006-10-10 14:39:00 -07002238 pci_dev_put(pdev);
Brice Goglin6397c752006-08-31 01:55:32 -04002239}
2240DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2241 quirk_nvidia_ck804_msi_ht_cap);
David Millerba698ad2007-10-25 01:16:30 -07002242
Bjorn Helgaas415b6d02008-02-29 16:04:39 -07002243/* Force enable MSI mapping capability on HT bridges */
Myron Stowe25e742b2012-07-09 15:36:14 -06002244static void ht_enable_msi_mapping(struct pci_dev *dev)
Peer Chen9dc625e2008-02-04 23:50:13 -08002245{
2246 int pos, ttl = 48;
2247
2248 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2249 while (pos && ttl--) {
2250 u8 flags;
2251
2252 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2253 &flags) == 0) {
2254 dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
2255
2256 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2257 flags | HT_MSI_FLAGS_ENABLE);
2258 }
2259 pos = pci_find_next_ht_capability(dev, pos,
2260 HT_CAPTYPE_MSI_MAPPING);
2261 }
2262}
Bjorn Helgaas415b6d02008-02-29 16:04:39 -07002263DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
2264 PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
2265 ht_enable_msi_mapping);
Peer Chen9dc625e2008-02-04 23:50:13 -08002266
Yinghai Lue0ae4f52009-02-17 20:40:09 -08002267DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
2268 ht_enable_msi_mapping);
2269
Ben Hutchingse4146bb2010-05-16 02:28:49 +01002270/* The P5N32-SLI motherboards from Asus have a problem with msi
Andreas Petlund75e07fc2008-11-20 20:42:25 -08002271 * for the MCP55 NIC. It is not yet determined whether the msi problem
2272 * also affects other devices. As for now, turn off msi for this device.
2273 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05002274static void nvenet_msi_disable(struct pci_dev *dev)
Andreas Petlund75e07fc2008-11-20 20:42:25 -08002275{
Jean Delvare9251bac2011-05-15 18:13:46 +02002276 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
2277
2278 if (board_name &&
2279 (strstr(board_name, "P5N32-SLI PREMIUM") ||
2280 strstr(board_name, "P5N32-E SLI"))) {
Andreas Petlund75e07fc2008-11-20 20:42:25 -08002281 dev_info(&dev->dev,
Ben Hutchingse4146bb2010-05-16 02:28:49 +01002282 "Disabling msi for MCP55 NIC on P5N32-SLI\n");
Andreas Petlund75e07fc2008-11-20 20:42:25 -08002283 dev->no_msi = 1;
2284 }
2285}
2286DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2287 PCI_DEVICE_ID_NVIDIA_NVENET_15,
2288 nvenet_msi_disable);
2289
Neil Horman66db60e2010-09-21 13:54:39 -04002290/*
Bjorn Helgaasf7625982013-11-14 11:28:18 -07002291 * Some versions of the MCP55 bridge from Nvidia have a legacy IRQ routing
2292 * config register. This register controls the routing of legacy
2293 * interrupts from devices that route through the MCP55. If this register
2294 * is misprogrammed, interrupts are only sent to the BSP, unlike
2295 * conventional systems where the IRQ is broadcast to all online CPUs. Not
2296 * having this register set properly prevents kdump from booting up
2297 * properly, so let's make sure that we have it set correctly.
2298 * Note that this is an undocumented register.
Neil Horman66db60e2010-09-21 13:54:39 -04002299 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05002300static void nvbridge_check_legacy_irq_routing(struct pci_dev *dev)
Neil Horman66db60e2010-09-21 13:54:39 -04002301{
2302 u32 cfg;
2303
Neil Horman49c2fa082010-12-08 09:47:48 -05002304 if (!pci_find_capability(dev, PCI_CAP_ID_HT))
2305 return;
2306
Neil Horman66db60e2010-09-21 13:54:39 -04002307 pci_read_config_dword(dev, 0x74, &cfg);
2308
2309 if (cfg & ((1 << 2) | (1 << 15))) {
2310 printk(KERN_INFO "Rewriting irq routing register on MCP55\n");
2311 cfg &= ~((1 << 2) | (1 << 15));
2312 pci_write_config_dword(dev, 0x74, cfg);
2313 }
2314}
2315
2316DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2317 PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V0,
2318 nvbridge_check_legacy_irq_routing);
2319
2320DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2321 PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V4,
2322 nvbridge_check_legacy_irq_routing);
2323
Myron Stowe25e742b2012-07-09 15:36:14 -06002324static int ht_check_msi_mapping(struct pci_dev *dev)
Yinghai Lude745302009-03-20 19:29:41 -07002325{
2326 int pos, ttl = 48;
2327 int found = 0;
2328
2329 /* check if there is HT MSI cap or enabled on this device */
2330 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2331 while (pos && ttl--) {
2332 u8 flags;
2333
2334 if (found < 1)
2335 found = 1;
2336 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2337 &flags) == 0) {
2338 if (flags & HT_MSI_FLAGS_ENABLE) {
2339 if (found < 2) {
2340 found = 2;
2341 break;
2342 }
2343 }
2344 }
2345 pos = pci_find_next_ht_capability(dev, pos,
2346 HT_CAPTYPE_MSI_MAPPING);
2347 }
2348
2349 return found;
2350}
2351
Myron Stowe25e742b2012-07-09 15:36:14 -06002352static int host_bridge_with_leaf(struct pci_dev *host_bridge)
Yinghai Lude745302009-03-20 19:29:41 -07002353{
2354 struct pci_dev *dev;
2355 int pos;
2356 int i, dev_no;
2357 int found = 0;
2358
2359 dev_no = host_bridge->devfn >> 3;
2360 for (i = dev_no + 1; i < 0x20; i++) {
2361 dev = pci_get_slot(host_bridge->bus, PCI_DEVFN(i, 0));
2362 if (!dev)
2363 continue;
2364
2365 /* found next host bridge ?*/
2366 pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
2367 if (pos != 0) {
2368 pci_dev_put(dev);
2369 break;
2370 }
2371
2372 if (ht_check_msi_mapping(dev)) {
2373 found = 1;
2374 pci_dev_put(dev);
2375 break;
2376 }
2377 pci_dev_put(dev);
2378 }
2379
2380 return found;
2381}
2382
Yinghai Lueeafda72009-03-29 12:30:05 -07002383#define PCI_HT_CAP_SLAVE_CTRL0 4 /* link control */
2384#define PCI_HT_CAP_SLAVE_CTRL1 8 /* link control to */
2385
Myron Stowe25e742b2012-07-09 15:36:14 -06002386static int is_end_of_ht_chain(struct pci_dev *dev)
Yinghai Lueeafda72009-03-29 12:30:05 -07002387{
2388 int pos, ctrl_off;
2389 int end = 0;
2390 u16 flags, ctrl;
2391
2392 pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
2393
2394 if (!pos)
2395 goto out;
2396
2397 pci_read_config_word(dev, pos + PCI_CAP_FLAGS, &flags);
2398
2399 ctrl_off = ((flags >> 10) & 1) ?
2400 PCI_HT_CAP_SLAVE_CTRL0 : PCI_HT_CAP_SLAVE_CTRL1;
2401 pci_read_config_word(dev, pos + ctrl_off, &ctrl);
2402
2403 if (ctrl & (1 << 6))
2404 end = 1;
2405
2406out:
2407 return end;
2408}
2409
Myron Stowe25e742b2012-07-09 15:36:14 -06002410static void nv_ht_enable_msi_mapping(struct pci_dev *dev)
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002411{
2412 struct pci_dev *host_bridge;
2413 int pos;
2414 int i, dev_no;
2415 int found = 0;
2416
2417 dev_no = dev->devfn >> 3;
2418 for (i = dev_no; i >= 0; i--) {
2419 host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0));
2420 if (!host_bridge)
2421 continue;
2422
2423 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
2424 if (pos != 0) {
2425 found = 1;
2426 break;
2427 }
2428 pci_dev_put(host_bridge);
2429 }
2430
2431 if (!found)
2432 return;
2433
Yinghai Lueeafda72009-03-29 12:30:05 -07002434 /* don't enable end_device/host_bridge with leaf directly here */
2435 if (host_bridge == dev && is_end_of_ht_chain(host_bridge) &&
2436 host_bridge_with_leaf(host_bridge))
Yinghai Lude745302009-03-20 19:29:41 -07002437 goto out;
2438
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002439 /* root did that ! */
2440 if (msi_ht_cap_enabled(host_bridge))
2441 goto out;
2442
2443 ht_enable_msi_mapping(dev);
2444
2445out:
2446 pci_dev_put(host_bridge);
2447}
2448
Myron Stowe25e742b2012-07-09 15:36:14 -06002449static void ht_disable_msi_mapping(struct pci_dev *dev)
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002450{
2451 int pos, ttl = 48;
2452
2453 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2454 while (pos && ttl--) {
2455 u8 flags;
2456
2457 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2458 &flags) == 0) {
Prakash Punnoor6a958d52009-03-06 10:10:35 +01002459 dev_info(&dev->dev, "Disabling HT MSI Mapping\n");
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002460
2461 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2462 flags & ~HT_MSI_FLAGS_ENABLE);
2463 }
2464 pos = pci_find_next_ht_capability(dev, pos,
2465 HT_CAPTYPE_MSI_MAPPING);
2466 }
2467}
2468
Myron Stowe25e742b2012-07-09 15:36:14 -06002469static void __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all)
Peer Chen9dc625e2008-02-04 23:50:13 -08002470{
2471 struct pci_dev *host_bridge;
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002472 int pos;
2473 int found;
2474
Rafael J. Wysocki3d2a5312010-07-23 22:19:55 +02002475 if (!pci_msi_enabled())
2476 return;
2477
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002478 /* check if there is HT MSI cap or enabled on this device */
2479 found = ht_check_msi_mapping(dev);
2480
2481 /* no HT MSI CAP */
2482 if (found == 0)
2483 return;
Peer Chen9dc625e2008-02-04 23:50:13 -08002484
2485 /*
2486 * HT MSI mapping should be disabled on devices that are below
2487 * a non-Hypertransport host bridge. Locate the host bridge...
2488 */
2489 host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
2490 if (host_bridge == NULL) {
2491 dev_warn(&dev->dev,
2492 "nv_msi_ht_cap_quirk didn't locate host bridge\n");
2493 return;
2494 }
2495
2496 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
2497 if (pos != 0) {
2498 /* Host bridge is to HT */
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002499 if (found == 1) {
2500 /* it is not enabled, try to enable it */
Yinghai Lude745302009-03-20 19:29:41 -07002501 if (all)
2502 ht_enable_msi_mapping(dev);
2503 else
2504 nv_ht_enable_msi_mapping(dev);
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002505 }
Myron Stowedff3aef2012-07-09 15:36:08 -06002506 goto out;
Peer Chen9dc625e2008-02-04 23:50:13 -08002507 }
2508
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002509 /* HT MSI is not enabled */
2510 if (found == 1)
Myron Stowedff3aef2012-07-09 15:36:08 -06002511 goto out;
Peer Chen9dc625e2008-02-04 23:50:13 -08002512
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002513 /* Host bridge is not to HT, disable HT MSI mapping on this device */
2514 ht_disable_msi_mapping(dev);
Myron Stowedff3aef2012-07-09 15:36:08 -06002515
2516out:
2517 pci_dev_put(host_bridge);
Peer Chen9dc625e2008-02-04 23:50:13 -08002518}
Yinghai Lude745302009-03-20 19:29:41 -07002519
Myron Stowe25e742b2012-07-09 15:36:14 -06002520static void nv_msi_ht_cap_quirk_all(struct pci_dev *dev)
Yinghai Lude745302009-03-20 19:29:41 -07002521{
2522 return __nv_msi_ht_cap_quirk(dev, 1);
2523}
2524
Myron Stowe25e742b2012-07-09 15:36:14 -06002525static void nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev)
Yinghai Lude745302009-03-20 19:29:41 -07002526{
2527 return __nv_msi_ht_cap_quirk(dev, 0);
2528}
2529
2530DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
Tejun Heo6dab62e2009-07-21 16:08:43 -07002531DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
Yinghai Lude745302009-03-20 19:29:41 -07002532
2533DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
Tejun Heo6dab62e2009-07-21 16:08:43 -07002534DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
Peer Chen9dc625e2008-02-04 23:50:13 -08002535
Bill Pemberton15856ad2012-11-21 15:35:00 -05002536static void quirk_msi_intx_disable_bug(struct pci_dev *dev)
David Millerba698ad2007-10-25 01:16:30 -07002537{
2538 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2539}
Bill Pemberton15856ad2012-11-21 15:35:00 -05002540static void quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
Shane Huang4600c9d2008-01-25 15:46:24 +09002541{
2542 struct pci_dev *p;
2543
2544 /* SB700 MSI issue will be fixed at HW level from revision A21,
2545 * we need check PCI REVISION ID of SMBus controller to get SB700
2546 * revision.
2547 */
2548 p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
2549 NULL);
2550 if (!p)
2551 return;
2552
2553 if ((p->revision < 0x3B) && (p->revision >= 0x30))
2554 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2555 pci_dev_put(p);
2556}
Xiong Huang70588812013-03-07 08:55:16 +00002557static void quirk_msi_intx_disable_qca_bug(struct pci_dev *dev)
2558{
2559 /* AR816X/AR817X/E210X MSI is fixed at HW level from revision 0x18 */
2560 if (dev->revision < 0x18) {
2561 dev_info(&dev->dev, "set MSI_INTX_DISABLE_BUG flag\n");
2562 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2563 }
2564}
David Millerba698ad2007-10-25 01:16:30 -07002565DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2566 PCI_DEVICE_ID_TIGON3_5780,
2567 quirk_msi_intx_disable_bug);
2568DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2569 PCI_DEVICE_ID_TIGON3_5780S,
2570 quirk_msi_intx_disable_bug);
2571DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2572 PCI_DEVICE_ID_TIGON3_5714,
2573 quirk_msi_intx_disable_bug);
2574DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2575 PCI_DEVICE_ID_TIGON3_5714S,
2576 quirk_msi_intx_disable_bug);
2577DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2578 PCI_DEVICE_ID_TIGON3_5715,
2579 quirk_msi_intx_disable_bug);
2580DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2581 PCI_DEVICE_ID_TIGON3_5715S,
2582 quirk_msi_intx_disable_bug);
2583
David Millerbc38b412007-10-25 01:16:52 -07002584DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
Shane Huang4600c9d2008-01-25 15:46:24 +09002585 quirk_msi_intx_disable_ati_bug);
David Millerbc38b412007-10-25 01:16:52 -07002586DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
Shane Huang4600c9d2008-01-25 15:46:24 +09002587 quirk_msi_intx_disable_ati_bug);
David Millerbc38b412007-10-25 01:16:52 -07002588DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
Shane Huang4600c9d2008-01-25 15:46:24 +09002589 quirk_msi_intx_disable_ati_bug);
David Millerbc38b412007-10-25 01:16:52 -07002590DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
Shane Huang4600c9d2008-01-25 15:46:24 +09002591 quirk_msi_intx_disable_ati_bug);
David Millerbc38b412007-10-25 01:16:52 -07002592DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
Shane Huang4600c9d2008-01-25 15:46:24 +09002593 quirk_msi_intx_disable_ati_bug);
David Millerbc38b412007-10-25 01:16:52 -07002594
2595DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
2596 quirk_msi_intx_disable_bug);
2597DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
2598 quirk_msi_intx_disable_bug);
2599DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
2600 quirk_msi_intx_disable_bug);
2601
Huang, Xiong7cb6a292012-04-30 15:38:49 +00002602DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1062,
2603 quirk_msi_intx_disable_bug);
2604DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1063,
2605 quirk_msi_intx_disable_bug);
2606DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2060,
2607 quirk_msi_intx_disable_bug);
2608DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2062,
2609 quirk_msi_intx_disable_bug);
2610DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1073,
2611 quirk_msi_intx_disable_bug);
2612DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1083,
2613 quirk_msi_intx_disable_bug);
Xiong Huang70588812013-03-07 08:55:16 +00002614DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1090,
2615 quirk_msi_intx_disable_qca_bug);
2616DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1091,
2617 quirk_msi_intx_disable_qca_bug);
2618DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a0,
2619 quirk_msi_intx_disable_qca_bug);
2620DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a1,
2621 quirk_msi_intx_disable_qca_bug);
2622DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0xe091,
2623 quirk_msi_intx_disable_qca_bug);
Brice Goglin3f79e102006-08-31 01:54:56 -04002624#endif /* CONFIG_PCI_MSI */
Thomas Petazzoni3d137312008-08-19 10:28:24 +02002625
Felix Radensky33223402010-03-28 16:02:02 +03002626/* Allow manual resource allocation for PCI hotplug bridges
2627 * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For
2628 * some PCI-PCI hotplug bridges, like PLX 6254 (former HINT HB6),
Bjorn Helgaasf7625982013-11-14 11:28:18 -07002629 * kernel fails to allocate resources when hotplug device is
Felix Radensky33223402010-03-28 16:02:02 +03002630 * inserted and PCI bus is rescanned.
2631 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05002632static void quirk_hotplug_bridge(struct pci_dev *dev)
Felix Radensky33223402010-03-28 16:02:02 +03002633{
2634 dev->is_hotplug_bridge = 1;
2635}
2636
2637DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0020, quirk_hotplug_bridge);
2638
Maxim Levitsky03cd8f72010-03-05 13:43:20 -08002639/*
2640 * This is a quirk for the Ricoh MMC controller found as a part of
2641 * some mulifunction chips.
2642
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002643 * This is very similar and based on the ricoh_mmc driver written by
Maxim Levitsky03cd8f72010-03-05 13:43:20 -08002644 * Philip Langdale. Thank you for these magic sequences.
2645 *
2646 * These chips implement the four main memory card controllers (SD, MMC, MS, xD)
2647 * and one or both of cardbus or firewire.
2648 *
2649 * It happens that they implement SD and MMC
2650 * support as separate controllers (and PCI functions). The linux SDHCI
2651 * driver supports MMC cards but the chip detects MMC cards in hardware
2652 * and directs them to the MMC controller - so the SDHCI driver never sees
2653 * them.
2654 *
2655 * To get around this, we must disable the useless MMC controller.
2656 * At that point, the SDHCI controller will start seeing them
2657 * It seems to be the case that the relevant PCI registers to deactivate the
2658 * MMC controller live on PCI function 0, which might be the cardbus controller
2659 * or the firewire controller, depending on the particular chip in question
2660 *
2661 * This has to be done early, because as soon as we disable the MMC controller
2662 * other pci functions shift up one level, e.g. function #2 becomes function
2663 * #1, and this will confuse the pci core.
2664 */
2665
2666#ifdef CONFIG_MMC_RICOH_MMC
2667static void ricoh_mmc_fixup_rl5c476(struct pci_dev *dev)
2668{
2669 /* disable via cardbus interface */
2670 u8 write_enable;
2671 u8 write_target;
2672 u8 disable;
2673
2674 /* disable must be done via function #0 */
2675 if (PCI_FUNC(dev->devfn))
2676 return;
2677
2678 pci_read_config_byte(dev, 0xB7, &disable);
2679 if (disable & 0x02)
2680 return;
2681
2682 pci_read_config_byte(dev, 0x8E, &write_enable);
2683 pci_write_config_byte(dev, 0x8E, 0xAA);
2684 pci_read_config_byte(dev, 0x8D, &write_target);
2685 pci_write_config_byte(dev, 0x8D, 0xB7);
2686 pci_write_config_byte(dev, 0xB7, disable | 0x02);
2687 pci_write_config_byte(dev, 0x8E, write_enable);
2688 pci_write_config_byte(dev, 0x8D, write_target);
2689
2690 dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via cardbus function)\n");
2691 dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller\n");
2692}
2693DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476);
2694DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476);
2695
2696static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev)
2697{
2698 /* disable via firewire interface */
2699 u8 write_enable;
2700 u8 disable;
2701
2702 /* disable must be done via function #0 */
2703 if (PCI_FUNC(dev->devfn))
2704 return;
Manoj Iyer15bed0f2011-07-11 16:28:35 -05002705 /*
Andy Lutomirski812089e2012-12-01 12:37:20 -08002706 * RICOH 0xe822 and 0xe823 SD/MMC card readers fail to recognize
Manoj Iyer15bed0f2011-07-11 16:28:35 -05002707 * certain types of SD/MMC cards. Lowering the SD base
2708 * clock frequency from 200Mhz to 50Mhz fixes this issue.
2709 *
2710 * 0x150 - SD2.0 mode enable for changing base clock
2711 * frequency to 50Mhz
2712 * 0xe1 - Base clock frequency
2713 * 0x32 - 50Mhz new clock frequency
2714 * 0xf9 - Key register for 0x150
2715 * 0xfc - key register for 0xe1
2716 */
Andy Lutomirski812089e2012-12-01 12:37:20 -08002717 if (dev->device == PCI_DEVICE_ID_RICOH_R5CE822 ||
2718 dev->device == PCI_DEVICE_ID_RICOH_R5CE823) {
Manoj Iyer15bed0f2011-07-11 16:28:35 -05002719 pci_write_config_byte(dev, 0xf9, 0xfc);
2720 pci_write_config_byte(dev, 0x150, 0x10);
2721 pci_write_config_byte(dev, 0xf9, 0x00);
2722 pci_write_config_byte(dev, 0xfc, 0x01);
2723 pci_write_config_byte(dev, 0xe1, 0x32);
2724 pci_write_config_byte(dev, 0xfc, 0x00);
2725
2726 dev_notice(&dev->dev, "MMC controller base frequency changed to 50Mhz.\n");
2727 }
Josh Boyer3e309cd2011-10-05 11:44:50 -04002728
2729 pci_read_config_byte(dev, 0xCB, &disable);
2730
2731 if (disable & 0x02)
2732 return;
2733
2734 pci_read_config_byte(dev, 0xCA, &write_enable);
2735 pci_write_config_byte(dev, 0xCA, 0x57);
2736 pci_write_config_byte(dev, 0xCB, disable | 0x02);
2737 pci_write_config_byte(dev, 0xCA, write_enable);
2738
2739 dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via firewire function)\n");
2740 dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller\n");
2741
Maxim Levitsky03cd8f72010-03-05 13:43:20 -08002742}
2743DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
2744DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
Andy Lutomirski812089e2012-12-01 12:37:20 -08002745DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
2746DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
Manoj Iyerbe98ca62011-05-26 11:19:05 -05002747DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
2748DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
Maxim Levitsky03cd8f72010-03-05 13:43:20 -08002749#endif /*CONFIG_MMC_RICOH_MMC*/
2750
Suresh Siddhad3f13812011-08-23 17:05:25 -07002751#ifdef CONFIG_DMAR_TABLE
Suresh Siddha254e42002010-12-06 12:26:30 -08002752#define VTUNCERRMSK_REG 0x1ac
2753#define VTD_MSK_SPEC_ERRORS (1 << 31)
2754/*
2755 * This is a quirk for masking vt-d spec defined errors to platform error
2756 * handling logic. With out this, platforms using Intel 7500, 5500 chipsets
2757 * (and the derivative chipsets like X58 etc) seem to generate NMI/SMI (based
2758 * on the RAS config settings of the platform) when a vt-d fault happens.
2759 * The resulting SMI caused the system to hang.
2760 *
2761 * VT-d spec related errors are already handled by the VT-d OS code, so no
2762 * need to report the same error through other channels.
2763 */
2764static void vtd_mask_spec_errors(struct pci_dev *dev)
2765{
2766 u32 word;
2767
2768 pci_read_config_dword(dev, VTUNCERRMSK_REG, &word);
2769 pci_write_config_dword(dev, VTUNCERRMSK_REG, word | VTD_MSK_SPEC_ERRORS);
2770}
2771DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors);
2772DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors);
2773#endif
Maxim Levitsky03cd8f72010-03-05 13:43:20 -08002774
Bill Pemberton15856ad2012-11-21 15:35:00 -05002775static void fixup_ti816x_class(struct pci_dev *dev)
Hemant Pedanekar63c44082011-04-05 12:32:50 +05302776{
2777 /* TI 816x devices do not have class code set when in PCIe boot mode */
Yinghai Lu40c96232012-02-23 23:46:58 -08002778 dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n");
2779 dev->class = PCI_CLASS_MULTIMEDIA_VIDEO;
Hemant Pedanekar63c44082011-04-05 12:32:50 +05302780}
Yinghai Lu40c96232012-02-23 23:46:58 -08002781DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_TI, 0xb800,
2782 PCI_CLASS_NOT_DEFINED, 0, fixup_ti816x_class);
Hemant Pedanekar63c44082011-04-05 12:32:50 +05302783
Ben Hutchingsa94d0722011-10-05 22:35:03 +01002784/* Some PCIe devices do not work reliably with the claimed maximum
2785 * payload size supported.
2786 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05002787static void fixup_mpss_256(struct pci_dev *dev)
Ben Hutchingsa94d0722011-10-05 22:35:03 +01002788{
2789 dev->pcie_mpss = 1; /* 256 bytes */
2790}
2791DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
2792 PCI_DEVICE_ID_SOLARFLARE_SFC4000A_0, fixup_mpss_256);
2793DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
2794 PCI_DEVICE_ID_SOLARFLARE_SFC4000A_1, fixup_mpss_256);
2795DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
2796 PCI_DEVICE_ID_SOLARFLARE_SFC4000B, fixup_mpss_256);
2797
Jon Masond387a8d2011-10-14 14:56:13 -05002798/* Intel 5000 and 5100 Memory controllers have an errata with read completion
2799 * coalescing (which is enabled by default on some BIOSes) and MPS of 256B.
2800 * Since there is no way of knowing what the PCIE MPS on each fabric will be
2801 * until all of the devices are discovered and buses walked, read completion
2802 * coalescing must be disabled. Unfortunately, it cannot be re-enabled because
2803 * it is possible to hotplug a device with MPS of 256B.
2804 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05002805static void quirk_intel_mc_errata(struct pci_dev *dev)
Jon Masond387a8d2011-10-14 14:56:13 -05002806{
2807 int err;
2808 u16 rcc;
2809
2810 if (pcie_bus_config == PCIE_BUS_TUNE_OFF)
2811 return;
2812
2813 /* Intel errata specifies bits to change but does not say what they are.
2814 * Keeping them magical until such time as the registers and values can
2815 * be explained.
2816 */
2817 err = pci_read_config_word(dev, 0x48, &rcc);
2818 if (err) {
2819 dev_err(&dev->dev, "Error attempting to read the read "
2820 "completion coalescing register.\n");
2821 return;
2822 }
2823
2824 if (!(rcc & (1 << 10)))
2825 return;
2826
2827 rcc &= ~(1 << 10);
2828
2829 err = pci_write_config_word(dev, 0x48, rcc);
2830 if (err) {
2831 dev_err(&dev->dev, "Error attempting to write the read "
2832 "completion coalescing register.\n");
2833 return;
2834 }
2835
2836 pr_info_once("Read completion coalescing disabled due to hardware "
2837 "errata relating to 256B MPS.\n");
2838}
2839/* Intel 5000 series memory controllers and ports 2-7 */
2840DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25c0, quirk_intel_mc_errata);
2841DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d0, quirk_intel_mc_errata);
2842DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d4, quirk_intel_mc_errata);
2843DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d8, quirk_intel_mc_errata);
2844DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_mc_errata);
2845DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_mc_errata);
2846DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_mc_errata);
2847DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_mc_errata);
2848DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_mc_errata);
2849DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_mc_errata);
2850DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_mc_errata);
2851DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_mc_errata);
2852DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_mc_errata);
2853DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_mc_errata);
2854/* Intel 5100 series memory controllers and ports 2-7 */
2855DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65c0, quirk_intel_mc_errata);
2856DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e2, quirk_intel_mc_errata);
2857DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e3, quirk_intel_mc_errata);
2858DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e4, quirk_intel_mc_errata);
2859DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e5, quirk_intel_mc_errata);
2860DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e6, quirk_intel_mc_errata);
2861DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e7, quirk_intel_mc_errata);
2862DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f7, quirk_intel_mc_errata);
2863DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f8, quirk_intel_mc_errata);
2864DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata);
2865DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata);
2866
Arjan van de Ven32098742012-01-30 20:52:07 -08002867
Jon Mason12b03182013-05-06 08:03:33 +00002868/*
2869 * Ivytown NTB BAR sizes are misreported by the hardware due to an erratum. To
2870 * work around this, query the size it should be configured to by the device and
2871 * modify the resource end to correspond to this new size.
2872 */
2873static void quirk_intel_ntb(struct pci_dev *dev)
2874{
2875 int rc;
2876 u8 val;
2877
2878 rc = pci_read_config_byte(dev, 0x00D0, &val);
2879 if (rc)
2880 return;
2881
2882 dev->resource[2].end = dev->resource[2].start + ((u64) 1 << val) - 1;
2883
2884 rc = pci_read_config_byte(dev, 0x00D1, &val);
2885 if (rc)
2886 return;
2887
2888 dev->resource[4].end = dev->resource[4].start + ((u64) 1 << val) - 1;
2889}
2890DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e08, quirk_intel_ntb);
2891DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e0d, quirk_intel_ntb);
2892
Myron Stowe2729d5b2012-07-09 15:36:02 -06002893static ktime_t fixup_debug_start(struct pci_dev *dev,
2894 void (*fn)(struct pci_dev *dev))
Arjan van de Ven32098742012-01-30 20:52:07 -08002895{
Myron Stowe2729d5b2012-07-09 15:36:02 -06002896 ktime_t calltime = ktime_set(0, 0);
2897
2898 dev_dbg(&dev->dev, "calling %pF\n", fn);
2899 if (initcall_debug) {
2900 pr_debug("calling %pF @ %i for %s\n",
2901 fn, task_pid_nr(current), dev_name(&dev->dev));
2902 calltime = ktime_get();
2903 }
2904
2905 return calltime;
2906}
2907
2908static void fixup_debug_report(struct pci_dev *dev, ktime_t calltime,
2909 void (*fn)(struct pci_dev *dev))
2910{
2911 ktime_t delta, rettime;
Arjan van de Ven32098742012-01-30 20:52:07 -08002912 unsigned long long duration;
2913
Myron Stowe2729d5b2012-07-09 15:36:02 -06002914 if (initcall_debug) {
2915 rettime = ktime_get();
2916 delta = ktime_sub(rettime, calltime);
2917 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2918 pr_debug("pci fixup %pF returned after %lld usecs for %s\n",
2919 fn, duration, dev_name(&dev->dev));
2920 }
Arjan van de Ven32098742012-01-30 20:52:07 -08002921}
2922
Thomas Jaroschf67fd552011-12-07 22:08:11 +01002923/*
2924 * Some BIOS implementations leave the Intel GPU interrupts enabled,
2925 * even though no one is handling them (f.e. i915 driver is never loaded).
2926 * Additionally the interrupt destination is not set up properly
2927 * and the interrupt ends up -somewhere-.
2928 *
2929 * These spurious interrupts are "sticky" and the kernel disables
2930 * the (shared) interrupt line after 100.000+ generated interrupts.
2931 *
2932 * Fix it by disabling the still enabled interrupts.
2933 * This resolves crashes often seen on monitor unplug.
2934 */
2935#define I915_DEIER_REG 0x4400c
Bill Pemberton15856ad2012-11-21 15:35:00 -05002936static void disable_igfx_irq(struct pci_dev *dev)
Thomas Jaroschf67fd552011-12-07 22:08:11 +01002937{
2938 void __iomem *regs = pci_iomap(dev, 0, 0);
2939 if (regs == NULL) {
2940 dev_warn(&dev->dev, "igfx quirk: Can't iomap PCI device\n");
2941 return;
2942 }
2943
2944 /* Check if any interrupt line is still enabled */
2945 if (readl(regs + I915_DEIER_REG) != 0) {
2946 dev_warn(&dev->dev, "BIOS left Intel GPU interrupts enabled; "
2947 "disabling\n");
2948
2949 writel(0, regs + I915_DEIER_REG);
2950 }
2951
2952 pci_iounmap(dev, regs);
2953}
2954DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
2955DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
2956
Bjorn Helgaasfbebb9f2012-06-16 14:40:22 -06002957/*
Todd E Brandtb8cac702013-09-10 16:10:43 -07002958 * PCI devices which are on Intel chips can skip the 10ms delay
2959 * before entering D3 mode.
2960 */
2961static void quirk_remove_d3_delay(struct pci_dev *dev)
2962{
2963 dev->d3_delay = 0;
2964}
2965DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay);
2966DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0412, quirk_remove_d3_delay);
2967DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c0c, quirk_remove_d3_delay);
2968DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay);
2969DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay);
2970DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay);
2971DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay);
2972DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay);
2973DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c18, quirk_remove_d3_delay);
2974DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c1c, quirk_remove_d3_delay);
2975DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3_delay);
2976DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3_delay);
2977DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay);
2978DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay);
2979
2980/*
Bjorn Helgaasfbebb9f2012-06-16 14:40:22 -06002981 * Some devices may pass our check in pci_intx_mask_supported if
2982 * PCI_COMMAND_INTX_DISABLE works though they actually do not properly
2983 * support this feature.
2984 */
Bill Pemberton15856ad2012-11-21 15:35:00 -05002985static void quirk_broken_intx_masking(struct pci_dev *dev)
Bjorn Helgaasfbebb9f2012-06-16 14:40:22 -06002986{
2987 dev->broken_intx_masking = 1;
2988}
Jan Kiszkade509f92012-06-07 10:30:59 +02002989DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CHELSIO, 0x0030,
2990 quirk_broken_intx_masking);
Alex Williamson0bdb3b22012-06-07 11:01:59 -06002991DECLARE_PCI_FIXUP_HEADER(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */
2992 quirk_broken_intx_masking);
Bjorn Helgaasfbebb9f2012-06-16 14:40:22 -06002993
Jesse Barnesbfb0f332008-10-27 17:50:21 -07002994static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
2995 struct pci_fixup *end)
Thomas Petazzoni3d137312008-08-19 10:28:24 +02002996{
Myron Stowe2729d5b2012-07-09 15:36:02 -06002997 ktime_t calltime;
2998
Yinghai Luf4ca5c62012-02-23 23:46:49 -08002999 for (; f < end; f++)
3000 if ((f->class == (u32) (dev->class >> f->class_shift) ||
3001 f->class == (u32) PCI_ANY_ID) &&
3002 (f->vendor == dev->vendor ||
3003 f->vendor == (u16) PCI_ANY_ID) &&
3004 (f->device == dev->device ||
3005 f->device == (u16) PCI_ANY_ID)) {
Myron Stowe2729d5b2012-07-09 15:36:02 -06003006 calltime = fixup_debug_start(dev, f->hook);
3007 f->hook(dev);
3008 fixup_debug_report(dev, calltime, f->hook);
Thomas Petazzoni3d137312008-08-19 10:28:24 +02003009 }
Thomas Petazzoni3d137312008-08-19 10:28:24 +02003010}
3011
3012extern struct pci_fixup __start_pci_fixups_early[];
3013extern struct pci_fixup __end_pci_fixups_early[];
3014extern struct pci_fixup __start_pci_fixups_header[];
3015extern struct pci_fixup __end_pci_fixups_header[];
3016extern struct pci_fixup __start_pci_fixups_final[];
3017extern struct pci_fixup __end_pci_fixups_final[];
3018extern struct pci_fixup __start_pci_fixups_enable[];
3019extern struct pci_fixup __end_pci_fixups_enable[];
3020extern struct pci_fixup __start_pci_fixups_resume[];
3021extern struct pci_fixup __end_pci_fixups_resume[];
3022extern struct pci_fixup __start_pci_fixups_resume_early[];
3023extern struct pci_fixup __end_pci_fixups_resume_early[];
3024extern struct pci_fixup __start_pci_fixups_suspend[];
3025extern struct pci_fixup __end_pci_fixups_suspend[];
3026
Myron Stowe95df8b82012-07-13 14:29:00 -06003027static bool pci_apply_fixup_final_quirks;
Thomas Petazzoni3d137312008-08-19 10:28:24 +02003028
3029void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
3030{
3031 struct pci_fixup *start, *end;
3032
3033 switch(pass) {
3034 case pci_fixup_early:
3035 start = __start_pci_fixups_early;
3036 end = __end_pci_fixups_early;
3037 break;
3038
3039 case pci_fixup_header:
3040 start = __start_pci_fixups_header;
3041 end = __end_pci_fixups_header;
3042 break;
3043
3044 case pci_fixup_final:
Myron Stowe95df8b82012-07-13 14:29:00 -06003045 if (!pci_apply_fixup_final_quirks)
3046 return;
Thomas Petazzoni3d137312008-08-19 10:28:24 +02003047 start = __start_pci_fixups_final;
3048 end = __end_pci_fixups_final;
3049 break;
3050
3051 case pci_fixup_enable:
3052 start = __start_pci_fixups_enable;
3053 end = __end_pci_fixups_enable;
3054 break;
3055
3056 case pci_fixup_resume:
3057 start = __start_pci_fixups_resume;
3058 end = __end_pci_fixups_resume;
3059 break;
3060
3061 case pci_fixup_resume_early:
3062 start = __start_pci_fixups_resume_early;
3063 end = __end_pci_fixups_resume_early;
3064 break;
3065
3066 case pci_fixup_suspend:
3067 start = __start_pci_fixups_suspend;
3068 end = __end_pci_fixups_suspend;
3069 break;
3070
3071 default:
3072 /* stupid compiler warning, you would think with an enum... */
3073 return;
3074 }
3075 pci_do_fixups(dev, start, end);
3076}
Rafael J. Wysocki93177a72010-01-02 22:57:24 +01003077EXPORT_SYMBOL(pci_fixup_device);
David Woodhouse8d86fb22009-10-12 12:48:43 +01003078
Myron Stowe735bff12012-07-09 15:36:46 -06003079
David Woodhouse00010262009-10-12 12:50:34 +01003080static int __init pci_apply_final_quirks(void)
David Woodhouse8d86fb22009-10-12 12:48:43 +01003081{
3082 struct pci_dev *dev = NULL;
Jesse Barnesac1aa472009-10-26 13:20:44 -07003083 u8 cls = 0;
3084 u8 tmp;
3085
3086 if (pci_cache_line_size)
3087 printk(KERN_DEBUG "PCI: CLS %u bytes\n",
3088 pci_cache_line_size << 2);
David Woodhouse8d86fb22009-10-12 12:48:43 +01003089
Myron Stowe95df8b82012-07-13 14:29:00 -06003090 pci_apply_fixup_final_quirks = true;
Kulikov Vasiliy4e344b12010-07-03 20:04:39 +04003091 for_each_pci_dev(dev) {
David Woodhouse8d86fb22009-10-12 12:48:43 +01003092 pci_fixup_device(pci_fixup_final, dev);
Jesse Barnesac1aa472009-10-26 13:20:44 -07003093 /*
3094 * If arch hasn't set it explicitly yet, use the CLS
3095 * value shared by all PCI devices. If there's a
3096 * mismatch, fall back to the default value.
3097 */
3098 if (!pci_cache_line_size) {
3099 pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &tmp);
3100 if (!cls)
3101 cls = tmp;
3102 if (!tmp || cls == tmp)
3103 continue;
3104
3105 printk(KERN_DEBUG "PCI: CLS mismatch (%u != %u), "
3106 "using %u bytes\n", cls << 2, tmp << 2,
3107 pci_dfl_cache_line_size << 2);
3108 pci_cache_line_size = pci_dfl_cache_line_size;
3109 }
3110 }
Myron Stowe735bff12012-07-09 15:36:46 -06003111
Jesse Barnesac1aa472009-10-26 13:20:44 -07003112 if (!pci_cache_line_size) {
3113 printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n",
3114 cls << 2, pci_dfl_cache_line_size << 2);
Csaba Henk2820f332009-12-15 17:55:25 +05303115 pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size;
David Woodhouse8d86fb22009-10-12 12:48:43 +01003116 }
3117
3118 return 0;
3119}
3120
David Woodhousecf6f3bf2009-10-12 12:51:22 +01003121fs_initcall_sync(pci_apply_final_quirks);
Dexuan Cuib9c3b262009-12-07 13:03:21 +08003122
3123/*
3124 * Followings are device-specific reset methods which can be used to
3125 * reset a single function if other methods (e.g. FLR, PM D0->D3) are
3126 * not available.
3127 */
Dexuan Cuiaeb30012009-12-07 13:03:22 +08003128static int reset_intel_generic_dev(struct pci_dev *dev, int probe)
3129{
3130 int pos;
3131
3132 /* only implement PCI_CLASS_SERIAL_USB at present */
3133 if (dev->class == PCI_CLASS_SERIAL_USB) {
3134 pos = pci_find_capability(dev, PCI_CAP_ID_VNDR);
3135 if (!pos)
3136 return -ENOTTY;
3137
3138 if (probe)
3139 return 0;
3140
3141 pci_write_config_byte(dev, pos + 0x4, 1);
3142 msleep(100);
3143
3144 return 0;
3145 } else {
3146 return -ENOTTY;
3147 }
3148}
3149
Dexuan Cuic763e7b2009-12-07 13:03:23 +08003150static int reset_intel_82599_sfp_virtfn(struct pci_dev *dev, int probe)
3151{
Bjorn Helgaas76b57c62012-08-22 09:41:27 -06003152 /*
3153 * http://www.intel.com/content/dam/doc/datasheet/82599-10-gbe-controller-datasheet.pdf
3154 *
3155 * The 82599 supports FLR on VFs, but FLR support is reported only
3156 * in the PF DEVCAP (sec 9.3.10.4), not in the VF DEVCAP (sec 9.5).
3157 * Therefore, we can't use pcie_flr(), which checks the VF DEVCAP.
3158 */
3159
Dexuan Cuic763e7b2009-12-07 13:03:23 +08003160 if (probe)
3161 return 0;
3162
Casey Leedom4d708ab2013-08-06 15:48:39 +05303163 if (!pci_wait_for_pending_transaction(dev))
3164 dev_err(&dev->dev, "transaction is not cleared; proceeding with reset anyway\n");
Bjorn Helgaas76b57c62012-08-22 09:41:27 -06003165
Bjorn Helgaas76b57c62012-08-22 09:41:27 -06003166 pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR);
3167
Dexuan Cuic763e7b2009-12-07 13:03:23 +08003168 msleep(100);
3169
3170 return 0;
3171}
3172
Xudong Haodf558de2012-04-27 09:16:46 -06003173#include "../gpu/drm/i915/i915_reg.h"
3174#define MSG_CTL 0x45010
3175#define NSDE_PWR_STATE 0xd0100
3176#define IGD_OPERATION_TIMEOUT 10000 /* set timeout 10 seconds */
3177
3178static int reset_ivb_igd(struct pci_dev *dev, int probe)
3179{
3180 void __iomem *mmio_base;
3181 unsigned long timeout;
3182 u32 val;
3183
3184 if (probe)
3185 return 0;
3186
3187 mmio_base = pci_iomap(dev, 0, 0);
3188 if (!mmio_base)
3189 return -ENOMEM;
3190
3191 iowrite32(0x00000002, mmio_base + MSG_CTL);
3192
3193 /*
3194 * Clobbering SOUTH_CHICKEN2 register is fine only if the next
3195 * driver loaded sets the right bits. However, this's a reset and
3196 * the bits have been set by i915 previously, so we clobber
3197 * SOUTH_CHICKEN2 register directly here.
3198 */
3199 iowrite32(0x00000005, mmio_base + SOUTH_CHICKEN2);
3200
3201 val = ioread32(mmio_base + PCH_PP_CONTROL) & 0xfffffffe;
3202 iowrite32(val, mmio_base + PCH_PP_CONTROL);
3203
3204 timeout = jiffies + msecs_to_jiffies(IGD_OPERATION_TIMEOUT);
3205 do {
3206 val = ioread32(mmio_base + PCH_PP_STATUS);
3207 if ((val & 0xb0000000) == 0)
3208 goto reset_complete;
3209 msleep(10);
3210 } while (time_before(jiffies, timeout));
3211 dev_warn(&dev->dev, "timeout during reset\n");
3212
3213reset_complete:
3214 iowrite32(0x00000002, mmio_base + NSDE_PWR_STATE);
3215
3216 pci_iounmap(dev, mmio_base);
3217 return 0;
3218}
3219
Casey Leedom2c6217e2013-08-06 15:48:37 +05303220/*
3221 * Device-specific reset method for Chelsio T4-based adapters.
3222 */
3223static int reset_chelsio_generic_dev(struct pci_dev *dev, int probe)
3224{
3225 u16 old_command;
3226 u16 msix_flags;
3227
3228 /*
3229 * If this isn't a Chelsio T4-based device, return -ENOTTY indicating
3230 * that we have no device-specific reset method.
3231 */
3232 if ((dev->device & 0xf000) != 0x4000)
3233 return -ENOTTY;
3234
3235 /*
3236 * If this is the "probe" phase, return 0 indicating that we can
3237 * reset this device.
3238 */
3239 if (probe)
3240 return 0;
3241
3242 /*
3243 * T4 can wedge if there are DMAs in flight within the chip and Bus
3244 * Master has been disabled. We need to have it on till the Function
3245 * Level Reset completes. (BUS_MASTER is disabled in
3246 * pci_reset_function()).
3247 */
3248 pci_read_config_word(dev, PCI_COMMAND, &old_command);
3249 pci_write_config_word(dev, PCI_COMMAND,
3250 old_command | PCI_COMMAND_MASTER);
3251
3252 /*
3253 * Perform the actual device function reset, saving and restoring
3254 * configuration information around the reset.
3255 */
3256 pci_save_state(dev);
3257
3258 /*
3259 * T4 also suffers a Head-Of-Line blocking problem if MSI-X interrupts
3260 * are disabled when an MSI-X interrupt message needs to be delivered.
3261 * So we briefly re-enable MSI-X interrupts for the duration of the
3262 * FLR. The pci_restore_state() below will restore the original
3263 * MSI-X state.
3264 */
3265 pci_read_config_word(dev, dev->msix_cap+PCI_MSIX_FLAGS, &msix_flags);
3266 if ((msix_flags & PCI_MSIX_FLAGS_ENABLE) == 0)
3267 pci_write_config_word(dev, dev->msix_cap+PCI_MSIX_FLAGS,
3268 msix_flags |
3269 PCI_MSIX_FLAGS_ENABLE |
3270 PCI_MSIX_FLAGS_MASKALL);
3271
3272 /*
3273 * Start of pcie_flr() code sequence. This reset code is a copy of
3274 * the guts of pcie_flr() because that's not an exported function.
3275 */
3276
3277 if (!pci_wait_for_pending_transaction(dev))
3278 dev_err(&dev->dev, "transaction is not cleared; proceeding with reset anyway\n");
3279
3280 pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR);
3281 msleep(100);
3282
3283 /*
3284 * End of pcie_flr() code sequence.
3285 */
3286
3287 /*
3288 * Restore the configuration information (BAR values, etc.) including
3289 * the original PCI Configuration Space Command word, and return
3290 * success.
3291 */
3292 pci_restore_state(dev);
3293 pci_write_config_word(dev, PCI_COMMAND, old_command);
3294 return 0;
3295}
3296
Dexuan Cuic763e7b2009-12-07 13:03:23 +08003297#define PCI_DEVICE_ID_INTEL_82599_SFP_VF 0x10ed
Xudong Haodf558de2012-04-27 09:16:46 -06003298#define PCI_DEVICE_ID_INTEL_IVB_M_VGA 0x0156
3299#define PCI_DEVICE_ID_INTEL_IVB_M2_VGA 0x0166
Dexuan Cuic763e7b2009-12-07 13:03:23 +08003300
Rafael J. Wysocki5b889bf2009-12-31 19:06:35 +01003301static const struct pci_dev_reset_methods pci_dev_reset_methods[] = {
Dexuan Cuic763e7b2009-12-07 13:03:23 +08003302 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82599_SFP_VF,
3303 reset_intel_82599_sfp_virtfn },
Xudong Haodf558de2012-04-27 09:16:46 -06003304 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_M_VGA,
3305 reset_ivb_igd },
3306 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_M2_VGA,
3307 reset_ivb_igd },
Dexuan Cuiaeb30012009-12-07 13:03:22 +08003308 { PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
3309 reset_intel_generic_dev },
Casey Leedom2c6217e2013-08-06 15:48:37 +05303310 { PCI_VENDOR_ID_CHELSIO, PCI_ANY_ID,
3311 reset_chelsio_generic_dev },
Dexuan Cuib9c3b262009-12-07 13:03:21 +08003312 { 0 }
3313};
Rafael J. Wysocki5b889bf2009-12-31 19:06:35 +01003314
Xudong Haodf558de2012-04-27 09:16:46 -06003315/*
3316 * These device-specific reset methods are here rather than in a driver
3317 * because when a host assigns a device to a guest VM, the host may need
3318 * to reset the device but probably doesn't have a driver for it.
3319 */
Rafael J. Wysocki5b889bf2009-12-31 19:06:35 +01003320int pci_dev_specific_reset(struct pci_dev *dev, int probe)
3321{
Linus Torvaldsdf9d1e82009-12-31 16:44:43 -08003322 const struct pci_dev_reset_methods *i;
Rafael J. Wysocki5b889bf2009-12-31 19:06:35 +01003323
3324 for (i = pci_dev_reset_methods; i->reset; i++) {
3325 if ((i->vendor == dev->vendor ||
3326 i->vendor == (u16)PCI_ANY_ID) &&
3327 (i->device == dev->device ||
3328 i->device == (u16)PCI_ANY_ID))
3329 return i->reset(dev, probe);
3330 }
3331
3332 return -ENOTTY;
3333}
Alex Williamson12ea6ca2012-06-11 05:26:55 +00003334
3335static struct pci_dev *pci_func_0_dma_source(struct pci_dev *dev)
3336{
3337 if (!PCI_FUNC(dev->devfn))
3338 return pci_dev_get(dev);
3339
3340 return pci_get_slot(dev->bus, PCI_DEVFN(PCI_SLOT(dev->devfn), 0));
3341}
3342
3343static const struct pci_dev_dma_source {
3344 u16 vendor;
3345 u16 device;
3346 struct pci_dev *(*dma_source)(struct pci_dev *dev);
3347} pci_dev_dma_source[] = {
3348 /*
3349 * https://bugzilla.redhat.com/show_bug.cgi?id=605888
3350 *
3351 * Some Ricoh devices use the function 0 source ID for DMA on
3352 * other functions of a multifunction device. The DMA devices
3353 * is therefore function 0, which will have implications of the
3354 * iommu grouping of these devices.
3355 */
3356 { PCI_VENDOR_ID_RICOH, 0xe822, pci_func_0_dma_source },
3357 { PCI_VENDOR_ID_RICOH, 0xe230, pci_func_0_dma_source },
3358 { PCI_VENDOR_ID_RICOH, 0xe832, pci_func_0_dma_source },
3359 { PCI_VENDOR_ID_RICOH, 0xe476, pci_func_0_dma_source },
3360 { 0 }
3361};
3362
3363/*
3364 * IOMMUs with isolation capabilities need to be programmed with the
3365 * correct source ID of a device. In most cases, the source ID matches
3366 * the device doing the DMA, but sometimes hardware is broken and will
3367 * tag the DMA as being sourced from a different device. This function
3368 * allows that translation. Note that the reference count of the
3369 * returned device is incremented on all paths.
3370 */
3371struct pci_dev *pci_get_dma_source(struct pci_dev *dev)
3372{
3373 const struct pci_dev_dma_source *i;
3374
3375 for (i = pci_dev_dma_source; i->dma_source; i++) {
3376 if ((i->vendor == dev->vendor ||
3377 i->vendor == (u16)PCI_ANY_ID) &&
3378 (i->device == dev->device ||
3379 i->device == (u16)PCI_ANY_ID))
3380 return i->dma_source(dev);
3381 }
3382
3383 return pci_dev_get(dev);
3384}
Alex Williamsonad805752012-06-11 05:27:07 +00003385
Alex Williamson15b100d2013-06-27 16:40:00 -06003386/*
3387 * AMD has indicated that the devices below do not support peer-to-peer
3388 * in any system where they are found in the southbridge with an AMD
3389 * IOMMU in the system. Multifunction devices that do not support
3390 * peer-to-peer between functions can claim to support a subset of ACS.
3391 * Such devices effectively enable request redirect (RR) and completion
3392 * redirect (CR) since all transactions are redirected to the upstream
3393 * root complex.
3394 *
3395 * http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/94086
3396 * http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/94102
3397 * http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/99402
3398 *
3399 * 1002:4385 SBx00 SMBus Controller
3400 * 1002:439c SB7x0/SB8x0/SB9x0 IDE Controller
3401 * 1002:4383 SBx00 Azalia (Intel HDA)
3402 * 1002:439d SB7x0/SB8x0/SB9x0 LPC host controller
3403 * 1002:4384 SBx00 PCI to PCI Bridge
3404 * 1002:4399 SB7x0/SB8x0/SB9x0 USB OHCI2 Controller
3405 */
3406static int pci_quirk_amd_sb_acs(struct pci_dev *dev, u16 acs_flags)
3407{
3408#ifdef CONFIG_ACPI
3409 struct acpi_table_header *header = NULL;
3410 acpi_status status;
3411
3412 /* Targeting multifunction devices on the SB (appears on root bus) */
3413 if (!dev->multifunction || !pci_is_root_bus(dev->bus))
3414 return -ENODEV;
3415
3416 /* The IVRS table describes the AMD IOMMU */
3417 status = acpi_get_table("IVRS", 0, &header);
3418 if (ACPI_FAILURE(status))
3419 return -ENODEV;
3420
3421 /* Filter out flags not applicable to multifunction */
3422 acs_flags &= (PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_EC | PCI_ACS_DT);
3423
3424 return acs_flags & ~(PCI_ACS_RR | PCI_ACS_CR) ? 0 : 1;
3425#else
3426 return -ENODEV;
3427#endif
3428}
3429
Alex Williamsonad805752012-06-11 05:27:07 +00003430static const struct pci_dev_acs_enabled {
3431 u16 vendor;
3432 u16 device;
3433 int (*acs_enabled)(struct pci_dev *dev, u16 acs_flags);
3434} pci_dev_acs_enabled[] = {
Alex Williamson15b100d2013-06-27 16:40:00 -06003435 { PCI_VENDOR_ID_ATI, 0x4385, pci_quirk_amd_sb_acs },
3436 { PCI_VENDOR_ID_ATI, 0x439c, pci_quirk_amd_sb_acs },
3437 { PCI_VENDOR_ID_ATI, 0x4383, pci_quirk_amd_sb_acs },
3438 { PCI_VENDOR_ID_ATI, 0x439d, pci_quirk_amd_sb_acs },
3439 { PCI_VENDOR_ID_ATI, 0x4384, pci_quirk_amd_sb_acs },
3440 { PCI_VENDOR_ID_ATI, 0x4399, pci_quirk_amd_sb_acs },
Alex Williamsonad805752012-06-11 05:27:07 +00003441 { 0 }
3442};
3443
3444int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags)
3445{
3446 const struct pci_dev_acs_enabled *i;
3447 int ret;
3448
3449 /*
3450 * Allow devices that do not expose standard PCIe ACS capabilities
3451 * or control to indicate their support here. Multi-function express
3452 * devices which do not allow internal peer-to-peer between functions,
3453 * but do not implement PCIe ACS may wish to return true here.
3454 */
3455 for (i = pci_dev_acs_enabled; i->acs_enabled; i++) {
3456 if ((i->vendor == dev->vendor ||
3457 i->vendor == (u16)PCI_ANY_ID) &&
3458 (i->device == dev->device ||
3459 i->device == (u16)PCI_ANY_ID)) {
3460 ret = i->acs_enabled(dev, acs_flags);
3461 if (ret >= 0)
3462 return ret;
3463 }
3464 }
3465
3466 return -ENOTTY;
3467}