blob: 2472df8a903fab7e3b61b45fb437e0ad35b949d2 [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 */
40static void __devinit quirk_mmio_always_on(struct pci_dev *dev)
41{
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 */
51static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
52{
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070058/* Deal with broken BIOS'es that neglect to enable passive release,
59 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
81 ask them for me please -- Alan
82
83 This appears to be BIOS not version dependent. So presumably there is a
84 chipset level fix */
Linus Torvalds1da177e2005-04-16 15:20:36 -070085
86static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
87{
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);
100DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs);
101DECLARE_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 */
109static void __devinit quirk_tigerpoint_bm_sts(struct pci_dev *dev)
110{
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 */
128static void __devinit quirk_nopcipci(struct pci_dev *dev)
129{
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
138static void __devinit quirk_nopciamd(struct pci_dev *dev)
139{
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 */
153static void __devinit quirk_triton(struct pci_dev *dev)
154{
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}
Andrew Morton652c5382007-11-21 15:07:13 -0800160DECLARE_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
174 * information provided by VIA
175 */
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 */
182
183 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 }
197
198 /*
199 * Ok we have the problem. Now set the PCI master grant to
200 * 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);
212 /* Set bit 4 and bi 5 of byte 76 to 0x01
213 "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 */
232static void __devinit quirk_viaetbf(struct pci_dev *dev)
233{
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
241static void __devinit quirk_vsfx(struct pci_dev *dev)
242{
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]
255 */
Myron Stowe3274c8e2012-07-09 15:36:39 -0600256static void __devinit 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}
Andrew Morton652c5382007-11-21 15:07:13 -0800263DECLARE_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 */
270static void __devinit quirk_natoma(struct pci_dev *dev)
271{
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}
Andrew Morton652c5382007-11-21 15:07:13 -0800277DECLARE_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 */
288static void __devinit quirk_citrine(struct pci_dev *dev)
289{
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 */
298static void __devinit quirk_s3_64M(struct pci_dev *dev)
299{
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 */
316static void __devinit quirk_cs5536_vsa(struct pci_dev *dev)
317{
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
Linus Torvalds6693e742005-10-25 20:40:09 -0700327static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
328 unsigned size, int nr, const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329{
330 region &= ~(size-1);
331 if (region) {
David S. Miller085ae412005-08-08 13:19:08 -0700332 struct pci_bus_region bus_region;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 struct resource *res = dev->resource + nr;
334
335 res->name = pci_name(dev);
336 res->start = region;
337 res->end = region + size - 1;
338 res->flags = IORESOURCE_IO;
David S. Miller085ae412005-08-08 13:19:08 -0700339
340 /* Convert from PCI bus to resource space. */
341 bus_region.start = res->start;
342 bus_region.end = res->end;
343 pcibios_bus_to_resource(dev, res, &bus_region);
344
Bjorn Helgaasf967a442010-03-22 16:34:05 -0600345 if (pci_claim_resource(dev, nr) == 0)
346 dev_info(&dev->dev, "quirk: %pR claimed by %s\n",
347 res, name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 }
349}
350
351/*
352 * ATI Northbridge setups MCE the processor if you even
353 * read somewhere between 0x3b0->0x3bb or read 0x3d3
354 */
355static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
356{
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700357 dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358 /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
359 request_region(0x3b0, 0x0C, "RadeonIGP");
360 request_region(0x3d3, 0x01, "RadeonIGP");
361}
Andrew Morton652c5382007-11-21 15:07:13 -0800362DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363
364/*
365 * Let's make the southbridge information explicit instead
366 * of having to worry about people probing the ACPI areas,
367 * for example.. (Yes, it happens, and if you read the wrong
368 * ACPI register it will put the machine to sleep with no
369 * way of waking it up again. Bummer).
370 *
371 * ALI M7101: Two IO regions pointed to by words at
372 * 0xE0 (64 bytes of ACPI registers)
373 * 0xE2 (32 bytes of SMB registers)
374 */
375static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
376{
377 u16 region;
378
379 pci_read_config_word(dev, 0xE0, &region);
Linus Torvalds6693e742005-10-25 20:40:09 -0700380 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381 pci_read_config_word(dev, 0xE2, &region);
Linus Torvalds6693e742005-10-25 20:40:09 -0700382 quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383}
Andrew Morton652c5382007-11-21 15:07:13 -0800384DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385
Linus Torvalds6693e742005-10-25 20:40:09 -0700386static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
387{
388 u32 devres;
389 u32 mask, size, base;
390
391 pci_read_config_dword(dev, port, &devres);
392 if ((devres & enable) != enable)
393 return;
394 mask = (devres >> 16) & 15;
395 base = devres & 0xffff;
396 size = 16;
397 for (;;) {
398 unsigned bit = size >> 1;
399 if ((bit & mask) == bit)
400 break;
401 size = bit;
402 }
403 /*
404 * For now we only print it out. Eventually we'll want to
405 * reserve it (at least if it's in the 0x1000+ range), but
406 * let's get enough confirmation reports first.
407 */
408 base &= -size;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700409 dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
Linus Torvalds6693e742005-10-25 20:40:09 -0700410}
411
412static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
413{
414 u32 devres;
415 u32 mask, size, base;
416
417 pci_read_config_dword(dev, port, &devres);
418 if ((devres & enable) != enable)
419 return;
420 base = devres & 0xffff0000;
421 mask = (devres & 0x3f) << 16;
422 size = 128 << 16;
423 for (;;) {
424 unsigned bit = size >> 1;
425 if ((bit & mask) == bit)
426 break;
427 size = bit;
428 }
429 /*
430 * For now we only print it out. Eventually we'll want to
431 * reserve it, but let's get enough confirmation reports first.
432 */
433 base &= -size;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700434 dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
Linus Torvalds6693e742005-10-25 20:40:09 -0700435}
436
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437/*
438 * PIIX4 ACPI: Two IO regions pointed to by longwords at
439 * 0x40 (64 bytes of ACPI registers)
Linus Torvalds08db2a72005-10-30 14:40:07 -0800440 * 0x90 (16 bytes of SMB registers)
Linus Torvalds6693e742005-10-25 20:40:09 -0700441 * and a few strange programmable PIIX4 device resources.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 */
443static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
444{
Linus Torvalds6693e742005-10-25 20:40:09 -0700445 u32 region, res_a;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446
447 pci_read_config_dword(dev, 0x40, &region);
Linus Torvalds6693e742005-10-25 20:40:09 -0700448 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449 pci_read_config_dword(dev, 0x90, &region);
Linus Torvalds08db2a72005-10-30 14:40:07 -0800450 quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
Linus Torvalds6693e742005-10-25 20:40:09 -0700451
452 /* Device resource A has enables for some of the other ones */
453 pci_read_config_dword(dev, 0x5c, &res_a);
454
455 piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
456 piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
457
458 /* Device resource D is just bitfields for static resources */
459
460 /* Device 12 enabled? */
461 if (res_a & (1 << 29)) {
462 piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
463 piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
464 }
465 /* Device 13 enabled? */
466 if (res_a & (1 << 30)) {
467 piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
468 piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
469 }
470 piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
471 piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472}
Andrew Morton652c5382007-11-21 15:07:13 -0800473DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi);
474DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475
Jiri Slabycdb97552011-02-28 10:45:09 +0100476#define ICH_PMBASE 0x40
477#define ICH_ACPI_CNTL 0x44
478#define ICH4_ACPI_EN 0x10
479#define ICH6_ACPI_EN 0x80
480#define ICH4_GPIOBASE 0x58
481#define ICH4_GPIO_CNTL 0x5c
482#define ICH4_GPIO_EN 0x10
483#define ICH6_GPIOBASE 0x48
484#define ICH6_GPIO_CNTL 0x4c
485#define ICH6_GPIO_EN 0x10
486
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487/*
488 * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
489 * 0x40 (128 bytes of ACPI, GPIO & TCO registers)
490 * 0x58 (64 bytes of GPIO I/O space)
491 */
492static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
493{
494 u32 region;
Jiri Slabycdb97552011-02-28 10:45:09 +0100495 u8 enable;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496
Jiri Slaby87e3dc32011-02-28 10:45:10 +0100497 /*
498 * The check for PCIBIOS_MIN_IO is to ensure we won't create a conflict
499 * with low legacy (and fixed) ports. We don't know the decoding
500 * priority and can't tell whether the legacy device or the one created
501 * here is really at that address. This happens on boards with broken
502 * BIOSes.
503 */
504
Jiri Slabycdb97552011-02-28 10:45:09 +0100505 pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
506 if (enable & ICH4_ACPI_EN) {
507 pci_read_config_dword(dev, ICH_PMBASE, &region);
Jiri Slaby87e3dc32011-02-28 10:45:10 +0100508 region &= PCI_BASE_ADDRESS_IO_MASK;
509 if (region >= PCIBIOS_MIN_IO)
510 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES,
511 "ICH4 ACPI/GPIO/TCO");
Jiri Slabycdb97552011-02-28 10:45:09 +0100512 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513
Jiri Slabycdb97552011-02-28 10:45:09 +0100514 pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable);
515 if (enable & ICH4_GPIO_EN) {
516 pci_read_config_dword(dev, ICH4_GPIOBASE, &region);
Jiri Slaby87e3dc32011-02-28 10:45:10 +0100517 region &= PCI_BASE_ADDRESS_IO_MASK;
518 if (region >= PCIBIOS_MIN_IO)
519 quirk_io_region(dev, region, 64,
520 PCI_BRIDGE_RESOURCES + 1, "ICH4 GPIO");
Jiri Slabycdb97552011-02-28 10:45:09 +0100521 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522}
Andrew Morton652c5382007-11-21 15:07:13 -0800523DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi);
524DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi);
525DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi);
526DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi);
527DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi);
528DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi);
529DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi);
530DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi);
531DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
532DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533
Linus Torvalds894886e2008-12-06 10:10:10 -0800534static void __devinit ich6_lpc_acpi_gpio(struct pci_dev *dev)
R.Marek@sh.cvut.cz2cea7522005-09-27 21:54:51 +0000535{
536 u32 region;
Jiri Slabycdb97552011-02-28 10:45:09 +0100537 u8 enable;
R.Marek@sh.cvut.cz2cea7522005-09-27 21:54:51 +0000538
Jiri Slabycdb97552011-02-28 10:45:09 +0100539 pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
540 if (enable & ICH6_ACPI_EN) {
541 pci_read_config_dword(dev, ICH_PMBASE, &region);
Jiri Slaby87e3dc32011-02-28 10:45:10 +0100542 region &= PCI_BASE_ADDRESS_IO_MASK;
543 if (region >= PCIBIOS_MIN_IO)
544 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES,
545 "ICH6 ACPI/GPIO/TCO");
Jiri Slabycdb97552011-02-28 10:45:09 +0100546 }
R.Marek@sh.cvut.cz2cea7522005-09-27 21:54:51 +0000547
Jiri Slabycdb97552011-02-28 10:45:09 +0100548 pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable);
Jean Delvareb6d95bb2011-04-15 10:24:07 +0200549 if (enable & ICH6_GPIO_EN) {
Jiri Slabycdb97552011-02-28 10:45:09 +0100550 pci_read_config_dword(dev, ICH6_GPIOBASE, &region);
Jiri Slaby87e3dc32011-02-28 10:45:10 +0100551 region &= PCI_BASE_ADDRESS_IO_MASK;
552 if (region >= PCIBIOS_MIN_IO)
553 quirk_io_region(dev, region, 64,
554 PCI_BRIDGE_RESOURCES + 1, "ICH6 GPIO");
Jiri Slabycdb97552011-02-28 10:45:09 +0100555 }
R.Marek@sh.cvut.cz2cea7522005-09-27 21:54:51 +0000556}
Linus Torvalds894886e2008-12-06 10:10:10 -0800557
558static void __devinit ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize)
559{
560 u32 val;
561 u32 size, base;
562
563 pci_read_config_dword(dev, reg, &val);
564
565 /* Enabled? */
566 if (!(val & 1))
567 return;
568 base = val & 0xfffc;
569 if (dynsize) {
570 /*
571 * This is not correct. It is 16, 32 or 64 bytes depending on
572 * register D31:F0:ADh bits 5:4.
573 *
574 * But this gets us at least _part_ of it.
575 */
576 size = 16;
577 } else {
578 size = 128;
579 }
580 base &= ~(size-1);
581
582 /* Just print it out for now. We should reserve it after more debugging */
583 dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base+size-1);
584}
585
586static void __devinit quirk_ich6_lpc(struct pci_dev *dev)
587{
588 /* Shared ACPI/GPIO decode with all ICH6+ */
589 ich6_lpc_acpi_gpio(dev);
590
591 /* ICH6-specific generic IO decode */
592 ich6_lpc_generic_decode(dev, 0x84, "LPC Generic IO decode 1", 0);
593 ich6_lpc_generic_decode(dev, 0x88, "LPC Generic IO decode 2", 1);
594}
595DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc);
596DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc);
597
598static void __devinit ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name)
599{
600 u32 val;
601 u32 mask, base;
602
603 pci_read_config_dword(dev, reg, &val);
604
605 /* Enabled? */
606 if (!(val & 1))
607 return;
608
609 /*
610 * IO base in bits 15:2, mask in bits 23:18, both
611 * are dword-based
612 */
613 base = val & 0xfffc;
614 mask = (val >> 16) & 0xfc;
615 mask |= 3;
616
617 /* Just print it out for now. We should reserve it after more debugging */
618 dev_info(&dev->dev, "%s PIO at %04x (mask %04x)\n", name, base, mask);
619}
620
621/* ICH7-10 has the same common LPC generic IO decode registers */
622static void __devinit quirk_ich7_lpc(struct pci_dev *dev)
623{
Jean Delvare5d9c0a72011-04-15 10:03:53 +0200624 /* We share the common ACPI/GPIO decode with ICH6 */
Linus Torvalds894886e2008-12-06 10:10:10 -0800625 ich6_lpc_acpi_gpio(dev);
626
627 /* And have 4 ICH7+ generic decodes */
628 ich7_lpc_generic_decode(dev, 0x84, "ICH7 LPC Generic IO decode 1");
629 ich7_lpc_generic_decode(dev, 0x88, "ICH7 LPC Generic IO decode 2");
630 ich7_lpc_generic_decode(dev, 0x8c, "ICH7 LPC Generic IO decode 3");
631 ich7_lpc_generic_decode(dev, 0x90, "ICH7 LPC Generic IO decode 4");
632}
633DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich7_lpc);
634DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich7_lpc);
635DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich7_lpc);
636DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich7_lpc);
637DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich7_lpc);
638DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich7_lpc);
639DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich7_lpc);
640DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich7_lpc);
641DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich7_lpc);
642DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich7_lpc);
643DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich7_lpc);
644DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich7_lpc);
645DECLARE_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 +0000646
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647/*
648 * VIA ACPI: One IO region pointed to by longword at
649 * 0x48 or 0x20 (256 bytes of ACPI registers)
650 */
651static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
652{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653 u32 region;
654
Auke Kok651472f2007-08-27 16:18:10 -0700655 if (dev->revision & 0x10) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656 pci_read_config_dword(dev, 0x48, &region);
657 region &= PCI_BASE_ADDRESS_IO_MASK;
Linus Torvalds6693e742005-10-25 20:40:09 -0700658 quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659 }
660}
Andrew Morton652c5382007-11-21 15:07:13 -0800661DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700662
663/*
664 * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
665 * 0x48 (256 bytes of ACPI registers)
666 * 0x70 (128 bytes of hardware monitoring register)
667 * 0x90 (16 bytes of SMB registers)
668 */
669static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
670{
671 u16 hm;
672 u32 smb;
673
674 quirk_vt82c586_acpi(dev);
675
676 pci_read_config_word(dev, 0x70, &hm);
677 hm &= PCI_BASE_ADDRESS_IO_MASK;
Meelis Roos02f313b2005-10-29 13:31:49 +0300678 quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679
680 pci_read_config_dword(dev, 0x90, &smb);
681 smb &= PCI_BASE_ADDRESS_IO_MASK;
Meelis Roos02f313b2005-10-29 13:31:49 +0300682 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683}
Andrew Morton652c5382007-11-21 15:07:13 -0800684DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685
Ivan Kokshaysky6d85f292005-08-08 12:55:54 +0400686/*
687 * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
688 * 0x88 (128 bytes of power management registers)
689 * 0xd0 (16 bytes of SMB registers)
690 */
691static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
692{
693 u16 pm, smb;
694
695 pci_read_config_word(dev, 0x88, &pm);
696 pm &= PCI_BASE_ADDRESS_IO_MASK;
Linus Torvalds6693e742005-10-25 20:40:09 -0700697 quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
Ivan Kokshaysky6d85f292005-08-08 12:55:54 +0400698
699 pci_read_config_word(dev, 0xd0, &smb);
700 smb &= PCI_BASE_ADDRESS_IO_MASK;
Linus Torvalds6693e742005-10-25 20:40:09 -0700701 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
Ivan Kokshaysky6d85f292005-08-08 12:55:54 +0400702}
703DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
704
Gabe Black1f56f4a2009-10-06 09:19:45 -0500705/*
706 * TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back:
707 * Disable fast back-to-back on the secondary bus segment
708 */
709static void __devinit quirk_xio2000a(struct pci_dev *dev)
710{
711 struct pci_dev *pdev;
712 u16 command;
713
714 dev_warn(&dev->dev, "TI XIO2000a quirk detected; "
715 "secondary bus fast back-to-back transfers disabled\n");
716 list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) {
717 pci_read_config_word(pdev, PCI_COMMAND, &command);
718 if (command & PCI_COMMAND_FAST_BACK)
719 pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK);
720 }
721}
722DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A,
723 quirk_xio2000a);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724
725#ifdef CONFIG_X86_IO_APIC
726
727#include <asm/io_apic.h>
728
729/*
730 * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
731 * devices to the external APIC.
732 *
733 * TODO: When we have device-specific interrupt routers,
734 * this code will go away from quirks.
735 */
Alan Cox1597cac2006-12-04 15:14:45 -0800736static void quirk_via_ioapic(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737{
738 u8 tmp;
739
740 if (nr_ioapics < 1)
741 tmp = 0; /* nothing routed to external APIC */
742 else
743 tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
744
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700745 dev_info(&dev->dev, "%sbling VIA external APIC routing\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746 tmp == 0 ? "Disa" : "Ena");
747
748 /* Offset 0x58: External APIC IRQ output control */
749 pci_write_config_byte (dev, 0x58, tmp);
750}
Andrew Morton652c5382007-11-21 15:07:13 -0800751DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +0200752DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753
754/*
Karsten Wiesea1740912005-09-03 15:56:33 -0700755 * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
756 * This leads to doubled level interrupt rates.
757 * Set this bit to get rid of cycle wastage.
758 * Otherwise uncritical.
759 */
Alan Cox1597cac2006-12-04 15:14:45 -0800760static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
Karsten Wiesea1740912005-09-03 15:56:33 -0700761{
762 u8 misc_control2;
763#define BYPASS_APIC_DEASSERT 8
764
765 pci_read_config_byte(dev, 0x5B, &misc_control2);
766 if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700767 dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
Karsten Wiesea1740912005-09-03 15:56:33 -0700768 pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
769 }
770}
771DECLARE_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 +0200772DECLARE_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 -0700773
774/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775 * The AMD io apic can hang the box when an apic irq is masked.
776 * We check all revs >= B0 (yet not in the pre production!) as the bug
777 * is currently marked NoFix
778 *
779 * We have multiple reports of hangs with this chipset that went away with
Alan Cox236561e2006-09-30 23:27:03 -0700780 * noapic specified. For the moment we assume it's the erratum. We may be wrong
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781 * of course. However the advice is demonstrably good even if so..
782 */
783static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
784{
Auke Kok44c10132007-06-08 15:46:36 -0700785 if (dev->revision >= 0x02) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700786 dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
787 dev_warn(&dev->dev, " : booting with the \"noapic\" option\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788 }
789}
Andrew Morton652c5382007-11-21 15:07:13 -0800790DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700791
Myron Stowe3274c8e2012-07-09 15:36:39 -0600792static void __devinit quirk_ioapic_rmw(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793{
794 if (dev->devfn == 0 && dev->bus->number == 0)
795 sis_apic_bug = 1;
796}
Andrew Morton652c5382007-11-21 15:07:13 -0800797DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798#endif /* CONFIG_X86_IO_APIC */
799
Peter Orubad556ad42007-05-15 13:59:13 +0200800/*
801 * Some settings of MMRBC can lead to data corruption so block changes.
802 * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
803 */
Myron Stowe3274c8e2012-07-09 15:36:39 -0600804static void __devinit quirk_amd_8131_mmrbc(struct pci_dev *dev)
Peter Orubad556ad42007-05-15 13:59:13 +0200805{
Auke Kokaa288d42007-08-27 16:17:47 -0700806 if (dev->subordinate && dev->revision <= 0x12) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700807 dev_info(&dev->dev, "AMD8131 rev %x detected; "
808 "disabling PCI-X MMRBC\n", dev->revision);
Peter Orubad556ad42007-05-15 13:59:13 +0200809 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
810 }
811}
812DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700813
814/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700815 * FIXME: it is questionable that quirk_via_acpi
816 * is needed. It shows up as an ISA bridge, and does not
817 * support the PCI_INTERRUPT_LINE register at all. Therefore
818 * it seems like setting the pci_dev's 'irq' to the
819 * value of the ACPI SCI interrupt is only done for convenience.
820 * -jgarzik
821 */
822static void __devinit quirk_via_acpi(struct pci_dev *d)
823{
824 /*
825 * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
826 */
827 u8 irq;
828 pci_read_config_byte(d, 0x42, &irq);
829 irq &= 0xf;
830 if (irq && (irq != 2))
831 d->irq = irq;
832}
Andrew Morton652c5382007-11-21 15:07:13 -0800833DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi);
834DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835
Daniel Drake09d60292006-09-25 16:52:19 -0700836
837/*
Alan Cox1597cac2006-12-04 15:14:45 -0800838 * VIA bridges which have VLink
Daniel Drake09d60292006-09-25 16:52:19 -0700839 */
Alan Cox1597cac2006-12-04 15:14:45 -0800840
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800841static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
842
843static void quirk_via_bridge(struct pci_dev *dev)
844{
845 /* See what bridge we have and find the device ranges */
846 switch (dev->device) {
847 case PCI_DEVICE_ID_VIA_82C686:
Jean Delvarecb7468e2007-01-31 23:48:12 -0800848 /* The VT82C686 is special, it attaches to PCI and can have
849 any device number. All its subdevices are functions of
850 that single device. */
851 via_vlink_dev_lo = PCI_SLOT(dev->devfn);
852 via_vlink_dev_hi = PCI_SLOT(dev->devfn);
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800853 break;
854 case PCI_DEVICE_ID_VIA_8237:
855 case PCI_DEVICE_ID_VIA_8237A:
856 via_vlink_dev_lo = 15;
857 break;
858 case PCI_DEVICE_ID_VIA_8235:
859 via_vlink_dev_lo = 16;
860 break;
861 case PCI_DEVICE_ID_VIA_8231:
862 case PCI_DEVICE_ID_VIA_8233_0:
863 case PCI_DEVICE_ID_VIA_8233A:
864 case PCI_DEVICE_ID_VIA_8233C_0:
865 via_vlink_dev_lo = 17;
866 break;
867 }
868}
869DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
870DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
871DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
872DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
873DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
874DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
875DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
876DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
Daniel Drake09d60292006-09-25 16:52:19 -0700877
Alan Cox1597cac2006-12-04 15:14:45 -0800878/**
879 * quirk_via_vlink - VIA VLink IRQ number update
880 * @dev: PCI device
881 *
882 * If the device we are dealing with is on a PIC IRQ we need to
883 * ensure that the IRQ line register which usually is not relevant
884 * for PCI cards, is actually written so that interrupts get sent
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800885 * to the right place.
886 * We only do this on systems where a VIA south bridge was detected,
887 * and only for VIA devices on the motherboard (see quirk_via_bridge
888 * above).
Alan Cox1597cac2006-12-04 15:14:45 -0800889 */
890
891static void quirk_via_vlink(struct pci_dev *dev)
Len Brown25be5e62005-05-27 04:21:50 -0400892{
893 u8 irq, new_irq;
894
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800895 /* Check if we have VLink at all */
896 if (via_vlink_dev_lo == -1)
Daniel Drake09d60292006-09-25 16:52:19 -0700897 return;
898
899 new_irq = dev->irq;
900
901 /* Don't quirk interrupts outside the legacy IRQ range */
902 if (!new_irq || new_irq > 15)
903 return;
904
Alan Cox1597cac2006-12-04 15:14:45 -0800905 /* Internal device ? */
Jean Delvarec06bb5d2007-01-30 14:36:09 -0800906 if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
907 PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
Alan Cox1597cac2006-12-04 15:14:45 -0800908 return;
909
910 /* This is an internal VLink device on a PIC interrupt. The BIOS
911 ought to have set this but may not have, so we redo it */
912
Len Brown25be5e62005-05-27 04:21:50 -0400913 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
914 if (new_irq != irq) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700915 dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n",
916 irq, new_irq);
Len Brown25be5e62005-05-27 04:21:50 -0400917 udelay(15); /* unknown if delay really needed */
918 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
919 }
920}
Alan Cox1597cac2006-12-04 15:14:45 -0800921DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
Len Brown25be5e62005-05-27 04:21:50 -0400922
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924 * VIA VT82C598 has its device ID settable and many BIOSes
925 * set it to the ID of VT82C597 for backward compatibility.
926 * We need to switch it off to be able to recognize the real
927 * type of the chip.
928 */
929static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
930{
931 pci_write_config_byte(dev, 0xfc, 0);
932 pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
933}
Andrew Morton652c5382007-11-21 15:07:13 -0800934DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935
936/*
937 * CardBus controllers have a legacy base address that enables them
938 * to respond as i82365 pcmcia controllers. We don't want them to
939 * do this even if the Linux CardBus driver is not loaded, because
940 * the Linux i82365 driver does not (and should not) handle CardBus.
941 */
Alan Cox1597cac2006-12-04 15:14:45 -0800942static void quirk_cardbus_legacy(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944 pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
945}
Yinghai Luae9de562012-02-23 23:46:54 -0800946DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
947 PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy);
948DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID,
949 PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950
951/*
952 * Following the PCI ordering rules is optional on the AMD762. I'm not
953 * sure what the designers were smoking but let's not inhale...
954 *
955 * To be fair to AMD, it follows the spec by default, its BIOS people
956 * who turn it off!
957 */
Alan Cox1597cac2006-12-04 15:14:45 -0800958static void quirk_amd_ordering(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959{
960 u32 pcic;
961 pci_read_config_dword(dev, 0x4C, &pcic);
962 if ((pcic&6)!=6) {
963 pcic |= 6;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -0700964 dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965 pci_write_config_dword(dev, 0x4C, pcic);
966 pci_read_config_dword(dev, 0x84, &pcic);
967 pcic |= (1<<23); /* Required in this mode */
968 pci_write_config_dword(dev, 0x84, pcic);
969 }
970}
Andrew Morton652c5382007-11-21 15:07:13 -0800971DECLARE_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 +0200972DECLARE_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 -0700973
974/*
975 * DreamWorks provided workaround for Dunord I-3000 problem
976 *
977 * This card decodes and responds to addresses not apparently
978 * assigned to it. We force a larger allocation to ensure that
979 * nothing gets put too close to it.
980 */
981static void __devinit quirk_dunord ( struct pci_dev * dev )
982{
983 struct resource *r = &dev->resource [1];
984 r->start = 0;
985 r->end = 0xffffff;
986}
Andrew Morton652c5382007-11-21 15:07:13 -0800987DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988
989/*
990 * i82380FB mobile docking controller: its PCI-to-PCI bridge
991 * is subtractive decoding (transparent), and does indicate this
992 * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
993 * instead of 0x01.
994 */
995static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
996{
997 dev->transparent = 1;
998}
Andrew Morton652c5382007-11-21 15:07:13 -0800999DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge);
1000DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
1002/*
1003 * Common misconfiguration of the MediaGX/Geode PCI master that will
1004 * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
Justin P. Mattock631dd1a2010-10-18 11:03:14 +02001005 * datasheets found at http://www.national.com/analog for info on what
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006 * these bits do. <christer@weinigel.se>
1007 */
Alan Cox1597cac2006-12-04 15:14:45 -08001008static void quirk_mediagx_master(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009{
1010 u8 reg;
1011 pci_read_config_byte(dev, 0x41, &reg);
1012 if (reg & 2) {
1013 reg &= ~2;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001014 dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015 pci_write_config_byte(dev, 0x41, reg);
1016 }
1017}
Andrew Morton652c5382007-11-21 15:07:13 -08001018DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
1019DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020
1021/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022 * Ensure C0 rev restreaming is off. This is normally done by
1023 * the BIOS but in the odd case it is not the results are corruption
1024 * hence the presence of a Linux check
1025 */
Alan Cox1597cac2006-12-04 15:14:45 -08001026static void quirk_disable_pxb(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027{
1028 u16 config;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029
Auke Kok44c10132007-06-08 15:46:36 -07001030 if (pdev->revision != 0x04) /* Only C0 requires this */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031 return;
1032 pci_read_config_word(pdev, 0x40, &config);
1033 if (config & (1<<6)) {
1034 config &= ~(1<<6);
1035 pci_write_config_word(pdev, 0x40, config);
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001036 dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037 }
1038}
Andrew Morton652c5382007-11-21 15:07:13 -08001039DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001040DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041
Myron Stowe25e742b2012-07-09 15:36:14 -06001042static void quirk_amd_ide_mode(struct pci_dev *pdev)
Conke Huab174432006-12-19 13:11:37 -08001043{
Shane Huang5deab532009-10-13 11:14:00 +08001044 /* set SBX00/Hudson-2 SATA in IDE mode to AHCI mode */
Crane Cai05a7d222008-02-02 13:56:56 +08001045 u8 tmp;
Conke Huab174432006-12-19 13:11:37 -08001046
Crane Cai05a7d222008-02-02 13:56:56 +08001047 pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
1048 if (tmp == 0x01) {
Conke Huab174432006-12-19 13:11:37 -08001049 pci_read_config_byte(pdev, 0x40, &tmp);
1050 pci_write_config_byte(pdev, 0x40, tmp|1);
1051 pci_write_config_byte(pdev, 0x9, 1);
1052 pci_write_config_byte(pdev, 0xa, 6);
1053 pci_write_config_byte(pdev, 0x40, tmp);
1054
Conke Huc9f89472007-01-09 05:32:51 -05001055 pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
Crane Cai05a7d222008-02-02 13:56:56 +08001056 dev_info(&pdev->dev, "set SATA to AHCI mode\n");
Conke Huab174432006-12-19 13:11:37 -08001057 }
1058}
Crane Cai05a7d222008-02-02 13:56:56 +08001059DECLARE_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 +02001060DECLARE_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 +08001061DECLARE_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 +02001062DECLARE_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 +08001063DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
1064DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
Conke Huab174432006-12-19 13:11:37 -08001065
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066/*
1067 * Serverworks CSB5 IDE does not fully support native mode
1068 */
1069static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
1070{
1071 u8 prog;
1072 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
1073 if (prog & 5) {
1074 prog &= ~5;
1075 pdev->class &= ~5;
1076 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
Alan Cox368c73d2006-10-04 00:41:26 +01001077 /* PCI layer will sort out resources */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078 }
1079}
Andrew Morton652c5382007-11-21 15:07:13 -08001080DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081
1082/*
1083 * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
1084 */
1085static void __init quirk_ide_samemode(struct pci_dev *pdev)
1086{
1087 u8 prog;
1088
1089 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
1090
1091 if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001092 dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093 prog &= ~5;
1094 pdev->class &= ~5;
1095 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001096 }
1097}
Alan Cox368c73d2006-10-04 00:41:26 +01001098DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099
Alan Cox979b1792008-07-24 17:18:38 +01001100/*
1101 * Some ATA devices break if put into D3
1102 */
1103
1104static void __devinit quirk_no_ata_d3(struct pci_dev *pdev)
1105{
Yinghai Lufaa738b2012-02-23 23:46:55 -08001106 pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
Alan Cox979b1792008-07-24 17:18:38 +01001107}
Yinghai Lufaa738b2012-02-23 23:46:55 -08001108/* Quirk the legacy ATA devices only. The AHCI ones are ok */
1109DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID,
1110 PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
1111DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
1112 PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
Alan Cox7a661c62009-06-24 16:02:27 +01001113/* ALi loses some register settings that we cannot then restore */
Yinghai Lufaa738b2012-02-23 23:46:55 -08001114DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID,
1115 PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
Alan Cox7a661c62009-06-24 16:02:27 +01001116/* VIA comes back fine but we need to keep it alive or ACPI GTM failures
1117 occur when mode detecting */
Yinghai Lufaa738b2012-02-23 23:46:55 -08001118DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID,
1119 PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
Alan Cox979b1792008-07-24 17:18:38 +01001120
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121/* This was originally an Alpha specific thing, but it really fits here.
1122 * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
1123 */
1124static void __init quirk_eisa_bridge(struct pci_dev *dev)
1125{
1126 dev->class = PCI_CLASS_BRIDGE_EISA << 8;
1127}
Andrew Morton652c5382007-11-21 15:07:13 -08001128DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129
Johannes Goecke7daa0c42006-04-20 02:43:17 -07001130
1131/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132 * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
1133 * is not activated. The myth is that Asus said that they do not want the
1134 * users to be irritated by just another PCI Device in the Win98 device
1135 * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
1136 * package 2.7.0 for details)
1137 *
1138 * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
1139 * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
gw.kernel@tnode.comd7698ed2007-08-23 21:22:04 +02001140 * becomes necessary to do this tweak in two steps -- the chosen trigger
1141 * is either the Host bridge (preferred) or on-board VGA controller.
Jean Delvare9208ee82007-03-24 16:56:44 +01001142 *
1143 * Note that we used to unhide the SMBus that way on Toshiba laptops
1144 * (Satellite A40 and Tecra M2) but then found that the thermal management
1145 * was done by SMM code, which could cause unsynchronized concurrent
1146 * accesses to the SMBus registers, with potentially bad effects. Thus you
1147 * should be very careful when adding new entries: if SMM is accessing the
1148 * Intel SMBus, this is a very good reason to leave it hidden.
Jean Delvarea99acc82008-03-28 14:16:04 -07001149 *
1150 * Likewise, many recent laptops use ACPI for thermal management. If the
1151 * ACPI DSDT code accesses the SMBus, then Linux should not access it
1152 * natively, and keeping the SMBus hidden is the right thing to do. If you
1153 * are about to add an entry in the table below, please first disassemble
1154 * the DSDT and double-check that there is no code accessing the SMBus.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155 */
Vivek Goyal9d24a812007-01-11 01:52:44 +01001156static int asus_hides_smbus;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157
1158static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
1159{
1160 if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1161 if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
1162 switch(dev->subsystem_device) {
Jean Delvarea00db372005-06-29 17:04:06 +02001163 case 0x8025: /* P4B-LX */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001164 case 0x8070: /* P4B */
1165 case 0x8088: /* P4B533 */
1166 case 0x1626: /* L3C notebook */
1167 asus_hides_smbus = 1;
1168 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001169 else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170 switch(dev->subsystem_device) {
1171 case 0x80b1: /* P4GE-V */
1172 case 0x80b2: /* P4PE */
1173 case 0x8093: /* P4B533-V */
1174 asus_hides_smbus = 1;
1175 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001176 else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177 switch(dev->subsystem_device) {
1178 case 0x8030: /* P4T533 */
1179 asus_hides_smbus = 1;
1180 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001181 else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182 switch (dev->subsystem_device) {
1183 case 0x8070: /* P4G8X Deluxe */
1184 asus_hides_smbus = 1;
1185 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001186 else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
Jean Delvare321311a2006-07-31 08:53:15 +02001187 switch (dev->subsystem_device) {
1188 case 0x80c9: /* PU-DLS */
1189 asus_hides_smbus = 1;
1190 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001191 else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001192 switch (dev->subsystem_device) {
1193 case 0x1751: /* M2N notebook */
1194 case 0x1821: /* M5N notebook */
Mats Erik Andersson4096ed02009-05-12 12:05:23 +02001195 case 0x1897: /* A6L notebook */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196 asus_hides_smbus = 1;
1197 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001198 else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199 switch (dev->subsystem_device) {
1200 case 0x184b: /* W1N notebook */
1201 case 0x186a: /* M6Ne notebook */
1202 asus_hides_smbus = 1;
1203 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001204 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
Jean Delvare2e457852007-01-05 09:17:56 +01001205 switch (dev->subsystem_device) {
1206 case 0x80f2: /* P4P800-X */
1207 asus_hides_smbus = 1;
1208 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001209 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001210 switch (dev->subsystem_device) {
1211 case 0x1882: /* M6V notebook */
Jean Delvare2d1e1c72006-04-01 16:46:35 +02001212 case 0x1977: /* A6VA notebook */
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001213 asus_hides_smbus = 1;
1214 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001215 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
1216 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1217 switch(dev->subsystem_device) {
1218 case 0x088C: /* HP Compaq nc8000 */
1219 case 0x0890: /* HP Compaq nc6000 */
1220 asus_hides_smbus = 1;
1221 }
Jean Delvare2f2d39d2007-01-05 11:23:15 +01001222 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001223 switch (dev->subsystem_device) {
1224 case 0x12bc: /* HP D330L */
Jean Delvaree3b1bd52005-09-21 22:26:31 +02001225 case 0x12bd: /* HP D530 */
Michal Miroslaw74c57422009-05-12 13:49:25 -07001226 case 0x006a: /* HP Compaq nx9500 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001227 asus_hides_smbus = 1;
1228 }
Jean Delvare677cc642007-11-21 18:29:06 +01001229 else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
1230 switch (dev->subsystem_device) {
1231 case 0x12bf: /* HP xw4100 */
1232 asus_hides_smbus = 1;
1233 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001234 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
1235 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1236 switch(dev->subsystem_device) {
1237 case 0xC00C: /* Samsung P35 notebook */
1238 asus_hides_smbus = 1;
1239 }
Rumen Ivanov Zarevc87f8832005-09-06 13:39:32 -07001240 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
1241 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1242 switch(dev->subsystem_device) {
1243 case 0x0058: /* Compaq Evo N620c */
1244 asus_hides_smbus = 1;
1245 }
gw.kernel@tnode.comd7698ed2007-08-23 21:22:04 +02001246 else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
1247 switch(dev->subsystem_device) {
1248 case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
1249 /* Motherboard doesn't have Host bridge
1250 * subvendor/subdevice IDs, therefore checking
1251 * its on-board VGA controller */
1252 asus_hides_smbus = 1;
1253 }
David O'Shea8293b0f2009-03-02 09:51:13 +01001254 else if (dev->device == PCI_DEVICE_ID_INTEL_82801DB_2)
Jean Delvare10260d92008-06-04 13:53:31 +02001255 switch(dev->subsystem_device) {
1256 case 0x00b8: /* Compaq Evo D510 CMT */
1257 case 0x00b9: /* Compaq Evo D510 SFF */
Jean Delvare6b5096e2009-07-28 11:49:19 +02001258 case 0x00ba: /* Compaq Evo D510 USDT */
David O'Shea8293b0f2009-03-02 09:51:13 +01001259 /* Motherboard doesn't have Host bridge
1260 * subvendor/subdevice IDs and on-board VGA
1261 * controller is disabled if an AGP card is
1262 * inserted, therefore checking USB UHCI
1263 * Controller #1 */
Jean Delvare10260d92008-06-04 13:53:31 +02001264 asus_hides_smbus = 1;
1265 }
Krzysztof Helt27e46852008-06-08 13:47:02 +02001266 else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC)
1267 switch (dev->subsystem_device) {
1268 case 0x001A: /* Compaq Deskpro EN SSF P667 815E */
1269 /* Motherboard doesn't have host bridge
1270 * subvendor/subdevice IDs, therefore checking
1271 * its on-board VGA controller */
1272 asus_hides_smbus = 1;
1273 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274 }
1275}
Andrew Morton652c5382007-11-21 15:07:13 -08001276DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge);
1277DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge);
1278DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge);
1279DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge);
Jean Delvare677cc642007-11-21 18:29:06 +01001280DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge);
Andrew Morton652c5382007-11-21 15:07:13 -08001281DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge);
1282DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge);
1283DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge);
1284DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge);
1285DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001286
Andrew Morton652c5382007-11-21 15:07:13 -08001287DECLARE_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 +01001288DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_2, asus_hides_smbus_hostbridge);
Krzysztof Helt27e46852008-06-08 13:47:02 +02001289DECLARE_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 +02001290
Alan Cox1597cac2006-12-04 15:14:45 -08001291static void asus_hides_smbus_lpc(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292{
1293 u16 val;
1294
1295 if (likely(!asus_hides_smbus))
1296 return;
1297
1298 pci_read_config_word(dev, 0xF2, &val);
1299 if (val & 0x8) {
1300 pci_write_config_word(dev, 0xF2, val & (~0x8));
1301 pci_read_config_word(dev, 0xF2, &val);
1302 if (val & 0x8)
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001303 dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001304 else
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001305 dev_info(&dev->dev, "Enabled i801 SMBus device\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306 }
1307}
Andrew Morton652c5382007-11-21 15:07:13 -08001308DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1309DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1310DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1311DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1312DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1313DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1314DECLARE_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 +02001315DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1316DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1317DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1318DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1319DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1320DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1321DECLARE_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 -07001322
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001323/* It appears we just have one such device. If not, we have a warning */
1324static void __iomem *asus_rcba_base;
1325static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev)
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001326{
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001327 u32 rcba;
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001328
1329 if (likely(!asus_hides_smbus))
1330 return;
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001331 WARN_ON(asus_rcba_base);
1332
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001333 pci_read_config_dword(dev, 0xF0, &rcba);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001334 /* use bits 31:14, 16 kB aligned */
1335 asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000);
1336 if (asus_rcba_base == NULL)
1337 return;
1338}
1339
1340static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev)
1341{
1342 u32 val;
1343
1344 if (likely(!asus_hides_smbus || !asus_rcba_base))
1345 return;
1346 /* read the Function Disable register, dword mode only */
1347 val = readl(asus_rcba_base + 0x3418);
1348 writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */
1349}
1350
1351static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev)
1352{
1353 if (likely(!asus_hides_smbus || !asus_rcba_base))
1354 return;
1355 iounmap(asus_rcba_base);
1356 asus_rcba_base = NULL;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001357 dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n");
R.Marek@sh.cvut.czacc06632005-09-29 08:35:41 +00001358}
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001359
1360static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
1361{
1362 asus_hides_smbus_lpc_ich6_suspend(dev);
1363 asus_hides_smbus_lpc_ich6_resume_early(dev);
1364 asus_hides_smbus_lpc_ich6_resume(dev);
1365}
Andrew Morton652c5382007-11-21 15:07:13 -08001366DECLARE_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 +02001367DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend);
1368DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume);
1369DECLARE_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 -07001370
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371/*
1372 * SiS 96x south bridge: BIOS typically hides SMBus device...
1373 */
Alan Cox1597cac2006-12-04 15:14:45 -08001374static void quirk_sis_96x_smbus(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001375{
1376 u8 val = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377 pci_read_config_byte(dev, 0x77, &val);
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001378 if (val & 0x10) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001379 dev_info(&dev->dev, "Enabling SiS 96x SMBus\n");
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001380 pci_write_config_byte(dev, 0x77, val & ~0x10);
1381 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382}
Andrew Morton652c5382007-11-21 15:07:13 -08001383DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1384DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1385DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1386DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001387DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1388DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1389DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1390DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392/*
1393 * ... This is further complicated by the fact that some SiS96x south
1394 * bridges pretend to be 85C503/5513 instead. In that case see if we
1395 * spotted a compatible north bridge to make sure.
1396 * (pci_find_device doesn't work yet)
1397 *
1398 * We can also enable the sis96x bit in the discovery register..
1399 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400#define SIS_DETECT_REGISTER 0x40
1401
Alan Cox1597cac2006-12-04 15:14:45 -08001402static void quirk_sis_503(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403{
1404 u8 reg;
1405 u16 devid;
1406
1407 pci_read_config_byte(dev, SIS_DETECT_REGISTER, &reg);
1408 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
1409 pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
1410 if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
1411 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
1412 return;
1413 }
1414
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415 /*
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001416 * Ok, it now shows up as a 96x.. run the 96x quirk by
1417 * hand in case it has already been processed.
1418 * (depends on link order, which is apparently not guaranteed)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419 */
1420 dev->device = devid;
Mark M. Hoffman2f5c33b2007-01-08 22:11:29 -05001421 quirk_sis_96x_smbus(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422}
Andrew Morton652c5382007-11-21 15:07:13 -08001423DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001424DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001425
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426
Bauke Jan Doumae5548e92006-02-28 21:44:36 +01001427/*
1428 * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
1429 * and MC97 modem controller are disabled when a second PCI soundcard is
1430 * present. This patch, tweaking the VT8237 ISA bridge, enables them.
1431 * -- bjd
1432 */
Alan Cox1597cac2006-12-04 15:14:45 -08001433static void asus_hides_ac97_lpc(struct pci_dev *dev)
Bauke Jan Doumae5548e92006-02-28 21:44:36 +01001434{
1435 u8 val;
1436 int asus_hides_ac97 = 0;
1437
1438 if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1439 if (dev->device == PCI_DEVICE_ID_VIA_8237)
1440 asus_hides_ac97 = 1;
1441 }
1442
1443 if (!asus_hides_ac97)
1444 return;
1445
1446 pci_read_config_byte(dev, 0x50, &val);
1447 if (val & 0xc0) {
1448 pci_write_config_byte(dev, 0x50, val & (~0xc0));
1449 pci_read_config_byte(dev, 0x50, &val);
1450 if (val & 0xc0)
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001451 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 +01001452 else
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001453 dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n");
Bauke Jan Doumae5548e92006-02-28 21:44:36 +01001454 }
1455}
Andrew Morton652c5382007-11-21 15:07:13 -08001456DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001457DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
Alan Cox1597cac2006-12-04 15:14:45 -08001458
Tejun Heo77967052006-08-19 03:54:39 +09001459#if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
Alan Cox15e0c692006-07-12 15:05:41 +01001460
1461/*
1462 * If we are using libata we can drive this chip properly but must
1463 * do this early on to make the additional device appear during
1464 * the PCI scanning.
1465 */
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001466static void quirk_jmicron_ata(struct pci_dev *pdev)
Alan Cox15e0c692006-07-12 15:05:41 +01001467{
Tejun Heoe34bb372007-02-26 20:24:03 +09001468 u32 conf1, conf5, class;
Alan Cox15e0c692006-07-12 15:05:41 +01001469 u8 hdr;
1470
1471 /* Only poke fn 0 */
1472 if (PCI_FUNC(pdev->devfn))
1473 return;
1474
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001475 pci_read_config_dword(pdev, 0x40, &conf1);
1476 pci_read_config_dword(pdev, 0x80, &conf5);
Alan Cox15e0c692006-07-12 15:05:41 +01001477
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001478 conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
1479 conf5 &= ~(1 << 24); /* Clear bit 24 */
Alan Cox15e0c692006-07-12 15:05:41 +01001480
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001481 switch (pdev->device) {
Tejun Heo4daedcf2010-06-03 11:57:04 +02001482 case PCI_DEVICE_ID_JMICRON_JMB360: /* SATA single port */
1483 case PCI_DEVICE_ID_JMICRON_JMB362: /* SATA dual ports */
Tejun Heo5b6ae5b2010-07-30 11:42:42 +02001484 case PCI_DEVICE_ID_JMICRON_JMB364: /* SATA dual ports */
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001485 /* The controller should be in single function ahci mode */
1486 conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
1487 break;
Alan Cox15e0c692006-07-12 15:05:41 +01001488
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001489 case PCI_DEVICE_ID_JMICRON_JMB365:
1490 case PCI_DEVICE_ID_JMICRON_JMB366:
1491 /* Redirect IDE second PATA port to the right spot */
1492 conf5 |= (1 << 24);
1493 /* Fall through */
1494 case PCI_DEVICE_ID_JMICRON_JMB361:
1495 case PCI_DEVICE_ID_JMICRON_JMB363:
Tejun Heo5b6ae5b2010-07-30 11:42:42 +02001496 case PCI_DEVICE_ID_JMICRON_JMB369:
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001497 /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
1498 /* Set the class codes correctly and then direct IDE 0 */
Tejun Heo3a9e3a52007-10-23 15:27:31 +09001499 conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001500 break;
1501
1502 case PCI_DEVICE_ID_JMICRON_JMB368:
1503 /* The controller should be in single function IDE mode */
1504 conf1 |= 0x00C00000; /* Set 22, 23 */
1505 break;
Alan Cox15e0c692006-07-12 15:05:41 +01001506 }
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001507
1508 pci_write_config_dword(pdev, 0x40, conf1);
1509 pci_write_config_dword(pdev, 0x80, conf5);
1510
1511 /* Update pdev accordingly */
1512 pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
1513 pdev->hdr_type = hdr & 0x7f;
1514 pdev->multifunction = !!(hdr & 0x80);
Tejun Heoe34bb372007-02-26 20:24:03 +09001515
1516 pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
1517 pdev->class = class >> 8;
Alan Cox15e0c692006-07-12 15:05:41 +01001518}
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001519DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1520DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
Tejun Heo4daedcf2010-06-03 11:57:04 +02001521DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001522DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
Tejun Heo5b6ae5b2010-07-30 11:42:42 +02001523DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata);
Tejun Heo5ee2ae72007-02-26 20:16:13 +09001524DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1525DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1526DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
Tejun Heo5b6ae5b2010-07-30 11:42:42 +02001527DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001528DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1529DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
Tejun Heo4daedcf2010-06-03 11:57:04 +02001530DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001531DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
Tejun Heo5b6ae5b2010-07-30 11:42:42 +02001532DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02001533DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1534DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1535DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
Tejun Heo5b6ae5b2010-07-30 11:42:42 +02001536DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata);
Alan Cox15e0c692006-07-12 15:05:41 +01001537
1538#endif
1539
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540#ifdef CONFIG_X86_IO_APIC
1541static void __init quirk_alder_ioapic(struct pci_dev *pdev)
1542{
1543 int i;
1544
1545 if ((pdev->class >> 8) != 0xff00)
1546 return;
1547
1548 /* the first BAR is the location of the IO APIC...we must
1549 * not touch this (and it's already covered by the fixmap), so
1550 * forcibly insert it into the resource tree */
1551 if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
1552 insert_resource(&iomem_resource, &pdev->resource[0]);
1553
1554 /* The next five BARs all seem to be rubbish, so just clean
1555 * them out */
1556 for (i=1; i < 6; i++) {
1557 memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
1558 }
1559
1560}
Andrew Morton652c5382007-11-21 15:07:13 -08001561DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001562#endif
1563
Linus Torvalds1da177e2005-04-16 15:20:36 -07001564static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
1565{
Eric W. Biederman0ba379e2009-09-06 21:48:35 -07001566 pci_msi_off(pdev);
1567 pdev->no_msi = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001568}
Andrew Morton652c5382007-11-21 15:07:13 -08001569DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
1570DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
1571DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001572
Kristen Accardi4602b882005-08-16 15:15:58 -07001573
1574/*
1575 * It's possible for the MSI to get corrupted if shpc and acpi
1576 * are used together on certain PXH-based systems.
1577 */
1578static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
1579{
Eric W. Biedermanf5f2b132007-03-05 00:30:07 -08001580 pci_msi_off(dev);
Kristen Accardi4602b882005-08-16 15:15:58 -07001581 dev->no_msi = 1;
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001582 dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n");
Kristen Accardi4602b882005-08-16 15:15:58 -07001583}
1584DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
1585DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
1586DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
1587DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
1588DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
1589
Kristen Carlson Accardiffadcc22006-07-12 08:59:00 -07001590/*
1591 * Some Intel PCI Express chipsets have trouble with downstream
1592 * device power management.
1593 */
1594static void quirk_intel_pcie_pm(struct pci_dev * dev)
1595{
1596 pci_pm_d3_delay = 120;
1597 dev->no_d1d2 = 1;
1598}
1599
1600DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
1601DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
1602DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
1603DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
1604DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
1605DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
1606DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
1607DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
1608DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
1609DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
1610DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
1611DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
1612DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
1613DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
1614DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
1615DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
1616DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
1617DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
1618DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
1619DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
1620DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
Kristen Accardi4602b882005-08-16 15:15:58 -07001621
Stefan Assmann426b3b82008-06-11 16:35:16 +02001622#ifdef CONFIG_X86_IO_APIC
1623/*
Stefan Assmanne1d3a902008-06-11 16:35:17 +02001624 * Boot interrupts on some chipsets cannot be turned off. For these chipsets,
1625 * remap the original interrupt in the linux kernel to the boot interrupt, so
1626 * that a PCI device's interrupt handler is installed on the boot interrupt
1627 * line instead.
1628 */
1629static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev)
1630{
Stefan Assmann41b9eb22008-07-15 13:48:55 +02001631 if (noioapicquirk || noioapicreroute)
Stefan Assmanne1d3a902008-06-11 16:35:17 +02001632 return;
1633
1634 dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT;
Bjorn Helgaasfdcdaf62009-09-14 14:36:41 -06001635 dev_info(&dev->dev, "rerouting interrupts for [%04x:%04x]\n",
1636 dev->vendor, dev->device);
Stefan Assmanne1d3a902008-06-11 16:35:17 +02001637}
Olaf Dabrunz88d1dce2008-07-08 15:59:48 +02001638DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1639DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1640DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1641DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1642DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1643DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1644DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1645DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
1646DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1647DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1648DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1649DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1650DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1651DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1652DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1653DECLARE_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 +02001654
1655/*
Stefan Assmann426b3b82008-06-11 16:35:16 +02001656 * On some chipsets we can disable the generation of legacy INTx boot
1657 * interrupts.
1658 */
1659
1660/*
1661 * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no
1662 * 300641-004US, section 5.7.3.
1663 */
1664#define INTEL_6300_IOAPIC_ABAR 0x40
1665#define INTEL_6300_DISABLE_BOOT_IRQ (1<<14)
1666
1667static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
1668{
1669 u16 pci_config_word;
1670
1671 if (noioapicquirk)
1672 return;
1673
1674 pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word);
1675 pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ;
1676 pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word);
1677
Bjorn Helgaasfdcdaf62009-09-14 14:36:41 -06001678 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1679 dev->vendor, dev->device);
Stefan Assmann426b3b82008-06-11 16:35:16 +02001680}
Olaf Dabrunz88d1dce2008-07-08 15:59:48 +02001681DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
1682DECLARE_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 +02001683
1684/*
1685 * disable boot interrupts on HT-1000
1686 */
1687#define BC_HT1000_FEATURE_REG 0x64
1688#define BC_HT1000_PIC_REGS_ENABLE (1<<0)
1689#define BC_HT1000_MAP_IDX 0xC00
1690#define BC_HT1000_MAP_DATA 0xC01
1691
1692static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
1693{
1694 u32 pci_config_dword;
1695 u8 irq;
1696
1697 if (noioapicquirk)
1698 return;
1699
1700 pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
1701 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
1702 BC_HT1000_PIC_REGS_ENABLE);
1703
1704 for (irq = 0x10; irq < 0x10 + 32; irq++) {
1705 outb(irq, BC_HT1000_MAP_IDX);
1706 outb(0x00, BC_HT1000_MAP_DATA);
1707 }
1708
1709 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
1710
Bjorn Helgaasfdcdaf62009-09-14 14:36:41 -06001711 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1712 dev->vendor, dev->device);
Olaf Dabrunz77251182008-07-08 15:59:47 +02001713}
Olaf Dabrunz88d1dce2008-07-08 15:59:48 +02001714DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
1715DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001716
1717/*
1718 * disable boot interrupts on AMD and ATI chipsets
1719 */
1720/*
1721 * NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131
1722 * rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode
1723 * (due to an erratum).
1724 */
1725#define AMD_813X_MISC 0x40
1726#define AMD_813X_NOIOAMODE (1<<0)
Stefan Assmann4fd8bdc2009-10-27 08:57:42 +01001727#define AMD_813X_REV_B1 0x12
Stefan Assmannbbe19442009-02-26 10:46:48 -08001728#define AMD_813X_REV_B2 0x13
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001729
1730static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
1731{
1732 u32 pci_config_dword;
1733
1734 if (noioapicquirk)
1735 return;
Stefan Assmann4fd8bdc2009-10-27 08:57:42 +01001736 if ((dev->revision == AMD_813X_REV_B1) ||
1737 (dev->revision == AMD_813X_REV_B2))
Stefan Assmannbbe19442009-02-26 10:46:48 -08001738 return;
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001739
1740 pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
1741 pci_config_dword &= ~AMD_813X_NOIOAMODE;
1742 pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword);
1743
Bjorn Helgaasfdcdaf62009-09-14 14:36:41 -06001744 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1745 dev->vendor, dev->device);
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001746}
Stefan Assmann4fd8bdc2009-10-27 08:57:42 +01001747DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1748DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1749DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1750DECLARE_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 +02001751
1752#define AMD_8111_PCI_IRQ_ROUTING 0x56
1753
1754static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev)
1755{
1756 u16 pci_config_word;
1757
1758 if (noioapicquirk)
1759 return;
1760
1761 pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word);
1762 if (!pci_config_word) {
Bjorn Helgaasfdcdaf62009-09-14 14:36:41 -06001763 dev_info(&dev->dev, "boot interrupts on device [%04x:%04x] "
1764 "already disabled\n", dev->vendor, dev->device);
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001765 return;
1766 }
1767 pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0);
Bjorn Helgaasfdcdaf62009-09-14 14:36:41 -06001768 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1769 dev->vendor, dev->device);
Olaf Dabrunz542622d2008-07-08 15:59:48 +02001770}
Olaf Dabrunz88d1dce2008-07-08 15:59:48 +02001771DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
1772DECLARE_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 +02001773#endif /* CONFIG_X86_IO_APIC */
1774
Sergei Shtylyov33dced22007-02-07 18:18:45 +01001775/*
1776 * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
1777 * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
1778 * Re-allocate the region if needed...
1779 */
1780static void __init quirk_tc86c001_ide(struct pci_dev *dev)
1781{
1782 struct resource *r = &dev->resource[0];
1783
1784 if (r->start & 0x8) {
1785 r->start = 0;
1786 r->end = 0xf;
1787 }
1788}
1789DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
1790 PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
1791 quirk_tc86c001_ide);
1792
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793static void __devinit quirk_netmos(struct pci_dev *dev)
1794{
1795 unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
1796 unsigned int num_serial = dev->subsystem_device & 0xf;
1797
1798 /*
1799 * These Netmos parts are multiport serial devices with optional
1800 * parallel ports. Even when parallel ports are present, they
1801 * are identified as class SERIAL, which means the serial driver
1802 * will claim them. To prevent this, mark them as class OTHER.
1803 * These combo devices should be claimed by parport_serial.
1804 *
1805 * The subdevice ID is of the form 0x00PS, where <P> is the number
1806 * of parallel ports and <S> is the number of serial ports.
1807 */
1808 switch (dev->device) {
Jiri Slaby4c9c1682008-12-08 16:19:14 +01001809 case PCI_DEVICE_ID_NETMOS_9835:
1810 /* Well, this rule doesn't hold for the following 9835 device */
1811 if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
1812 dev->subsystem_device == 0x0299)
1813 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001814 case PCI_DEVICE_ID_NETMOS_9735:
1815 case PCI_DEVICE_ID_NETMOS_9745:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001816 case PCI_DEVICE_ID_NETMOS_9845:
1817 case PCI_DEVICE_ID_NETMOS_9855:
Yinghai Lu08803ef2012-02-23 23:46:56 -08001818 if (num_parallel) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001819 dev_info(&dev->dev, "Netmos %04x (%u parallel, "
Linus Torvalds1da177e2005-04-16 15:20:36 -07001820 "%u serial); changing class SERIAL to OTHER "
1821 "(use parport_serial)\n",
1822 dev->device, num_parallel, num_serial);
1823 dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
1824 (dev->class & 0xff);
1825 }
1826 }
1827}
Yinghai Lu08803ef2012-02-23 23:46:56 -08001828DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID,
1829 PCI_CLASS_COMMUNICATION_SERIAL, 8, quirk_netmos);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001830
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001831static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
1832{
Ivan Kokshayskye64aecc2007-12-18 00:39:27 +03001833 u16 command, pmcsr;
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001834 u8 __iomem *csr;
1835 u8 cmd_hi;
Ivan Kokshayskye64aecc2007-12-18 00:39:27 +03001836 int pm;
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001837
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 */
1874 pm = pci_find_capability(dev, PCI_CAP_ID_PM);
1875 if (pm) {
1876 pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
1877 if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
1878 return;
1879 }
1880
Benjamin Herrenschmidt1bef7dc2007-09-29 09:06:21 +10001881 /* Convert from PCI bus to resource space. */
1882 csr = ioremap(pci_resource_start(dev, 0), 8);
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001883 if (!csr) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001884 dev_warn(&dev->dev, "Can't map e100 registers\n");
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001885 return;
1886 }
1887
1888 cmd_hi = readb(csr + 3);
1889 if (cmd_hi == 0) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001890 dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; "
1891 "disabling\n");
Bjorn Helgaas16a74742006-04-05 08:47:00 -04001892 writeb(1, csr + 3);
1893 }
1894
1895 iounmap(csr);
1896}
Yinghai Lu4c5b28e2012-02-23 23:46:57 -08001897DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
1898 PCI_CLASS_NETWORK_ETHERNET, 8, quirk_e100_interrupt);
Ivan Kokshayskya5312e22005-11-01 01:43:56 +03001899
Alexander Duyck649426e2009-03-05 13:57:28 -05001900/*
1901 * The 82575 and 82598 may experience data corruption issues when transitioning
1902 * out of L0S. To prevent this we need to disable L0S on the pci-e link
1903 */
1904static void __devinit quirk_disable_aspm_l0s(struct pci_dev *dev)
1905{
1906 dev_info(&dev->dev, "Disabling L0s\n");
1907 pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
1908}
1909DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s);
1910DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s);
1911DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s);
1912DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s);
1913DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s);
1914DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s);
1915DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s);
1916DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s);
1917DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s);
1918DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s);
1919DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s);
1920DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
1921DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
1922DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
1923
Ivan Kokshayskya5312e22005-11-01 01:43:56 +03001924static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
1925{
1926 /* rev 1 ncr53c810 chips don't set the class at all which means
1927 * they don't get their resources remapped. Fix that here.
1928 */
1929
1930 if (dev->class == PCI_CLASS_NOT_DEFINED) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001931 dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n");
Ivan Kokshayskya5312e22005-11-01 01:43:56 +03001932 dev->class = PCI_CLASS_STORAGE_SCSI;
1933 }
1934}
1935DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
1936
Daniel Yeisley9d265122005-12-05 07:06:43 -05001937/* Enable 1k I/O space granularity on the Intel P64H2 */
1938static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
1939{
1940 u16 en1k;
1941 u8 io_base_lo, io_limit_lo;
1942 unsigned long base, limit;
1943 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1944
1945 pci_read_config_word(dev, 0x40, &en1k);
1946
1947 if (en1k & 0x200) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001948 dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n");
Daniel Yeisley9d265122005-12-05 07:06:43 -05001949
1950 pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
1951 pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
1952 base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1953 limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1954
1955 if (base <= limit) {
1956 res->start = base;
1957 res->end = limit + 0x3ff;
1958 }
1959 }
1960}
1961DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
1962
Daniel Yeisley15a260d2006-12-21 14:34:57 -05001963/* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
1964 * The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
1965 * in drivers/pci/setup-bus.c
1966 */
1967static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
1968{
1969 u16 en1k, iobl_adr, iobl_adr_1k;
1970 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1971
1972 pci_read_config_word(dev, 0x40, &en1k);
1973
1974 if (en1k & 0x200) {
1975 pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
1976
1977 iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
1978
1979 if (iobl_adr != iobl_adr_1k) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001980 dev_info(&dev->dev, "Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1KB granularity\n",
Daniel Yeisley15a260d2006-12-21 14:34:57 -05001981 iobl_adr,iobl_adr_1k);
1982 pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
1983 }
1984 }
1985}
1986DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
1987
Brice Goglincf34a8e2006-06-13 14:35:42 -04001988/* Under some circumstances, AER is not linked with extended capabilities.
1989 * Force it to be linked by setting the corresponding control bit in the
1990 * config space.
1991 */
Alan Cox1597cac2006-12-04 15:14:45 -08001992static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
Brice Goglincf34a8e2006-06-13 14:35:42 -04001993{
1994 uint8_t b;
1995 if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
1996 if (!(b & 0x20)) {
1997 pci_write_config_byte(dev, 0xf41, b | 0x20);
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07001998 dev_info(&dev->dev,
1999 "Linking AER extended capability\n");
Brice Goglincf34a8e2006-06-13 14:35:42 -04002000 }
2001 }
2002}
2003DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2004 quirk_nvidia_ck804_pcie_aer_ext_cap);
Rafael J. Wysockie1a2a512008-05-15 21:51:31 +02002005DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
Alan Cox1597cac2006-12-04 15:14:45 -08002006 quirk_nvidia_ck804_pcie_aer_ext_cap);
Brice Goglincf34a8e2006-06-13 14:35:42 -04002007
Tim Yamin53a9bf42007-11-01 23:14:54 +00002008static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
2009{
2010 /*
2011 * Disable PCI Bus Parking and PCI Master read caching on CX700
2012 * which causes unspecified timing errors with a VT6212L on the PCI
Tim Yaminca846392010-03-19 14:22:58 -07002013 * bus leading to USB2.0 packet loss.
2014 *
2015 * This quirk is only enabled if a second (on the external PCI bus)
2016 * VT6212L is found -- the CX700 core itself also contains a USB
2017 * host controller with the same PCI ID as the VT6212L.
Tim Yamin53a9bf42007-11-01 23:14:54 +00002018 */
2019
Tim Yaminca846392010-03-19 14:22:58 -07002020 /* Count VT6212L instances */
2021 struct pci_dev *p = pci_get_device(PCI_VENDOR_ID_VIA,
2022 PCI_DEVICE_ID_VIA_8235_USB_2, NULL);
Tim Yamin53a9bf42007-11-01 23:14:54 +00002023 uint8_t b;
Tim Yaminca846392010-03-19 14:22:58 -07002024
2025 /* p should contain the first (internal) VT6212L -- see if we have
2026 an external one by searching again */
2027 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235_USB_2, p);
2028 if (!p)
2029 return;
2030 pci_dev_put(p);
2031
Tim Yamin53a9bf42007-11-01 23:14:54 +00002032 if (pci_read_config_byte(dev, 0x76, &b) == 0) {
2033 if (b & 0x40) {
2034 /* Turn off PCI Bus Parking */
2035 pci_write_config_byte(dev, 0x76, b ^ 0x40);
2036
Tim Yaminbc043272008-03-30 20:58:59 +01002037 dev_info(&dev->dev,
2038 "Disabling VIA CX700 PCI parking\n");
2039 }
2040 }
2041
2042 if (pci_read_config_byte(dev, 0x72, &b) == 0) {
2043 if (b != 0) {
Tim Yamin53a9bf42007-11-01 23:14:54 +00002044 /* Turn off PCI Master read caching */
2045 pci_write_config_byte(dev, 0x72, 0x0);
Tim Yaminbc043272008-03-30 20:58:59 +01002046
2047 /* Set PCI Master Bus time-out to "1x16 PCLK" */
Tim Yamin53a9bf42007-11-01 23:14:54 +00002048 pci_write_config_byte(dev, 0x75, 0x1);
Tim Yaminbc043272008-03-30 20:58:59 +01002049
2050 /* Disable "Read FIFO Timer" */
Tim Yamin53a9bf42007-11-01 23:14:54 +00002051 pci_write_config_byte(dev, 0x77, 0x0);
2052
Bjorn Helgaasd6505a52008-02-29 16:12:18 -07002053 dev_info(&dev->dev,
Tim Yaminbc043272008-03-30 20:58:59 +01002054 "Disabling VIA CX700 PCI caching\n");
Tim Yamin53a9bf42007-11-01 23:14:54 +00002055 }
2056 }
2057}
Tim Yaminca846392010-03-19 14:22:58 -07002058DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
Tim Yamin53a9bf42007-11-01 23:14:54 +00002059
Benjamin Li99cb233d2008-07-02 10:59:04 -07002060/*
2061 * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
2062 * VPD end tag will hang the device. This problem was initially
2063 * observed when a vpd entry was created in sysfs
2064 * ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry
2065 * will dump 32k of data. Reading a full 32k will cause an access
2066 * beyond the VPD end tag causing the device to hang. Once the device
2067 * is hung, the bnx2 driver will not be able to reset the device.
2068 * We believe that it is legal to read beyond the end tag and
2069 * therefore the solution is to limit the read/write length.
2070 */
2071static void __devinit quirk_brcm_570x_limit_vpd(struct pci_dev *dev)
2072{
Eric Dumazet9d82d8e2008-07-31 20:27:31 +02002073 /*
Dean Hildebrand35405f22008-08-07 17:31:45 -07002074 * Only disable the VPD capability for 5706, 5706S, 5708,
2075 * 5708S and 5709 rev. A
Eric Dumazet9d82d8e2008-07-31 20:27:31 +02002076 */
Benjamin Li99cb233d2008-07-02 10:59:04 -07002077 if ((dev->device == PCI_DEVICE_ID_NX2_5706) ||
Dean Hildebrand35405f22008-08-07 17:31:45 -07002078 (dev->device == PCI_DEVICE_ID_NX2_5706S) ||
Benjamin Li99cb233d2008-07-02 10:59:04 -07002079 (dev->device == PCI_DEVICE_ID_NX2_5708) ||
Eric Dumazet9d82d8e2008-07-31 20:27:31 +02002080 (dev->device == PCI_DEVICE_ID_NX2_5708S) ||
Benjamin Li99cb233d2008-07-02 10:59:04 -07002081 ((dev->device == PCI_DEVICE_ID_NX2_5709) &&
2082 (dev->revision & 0xf0) == 0x0)) {
2083 if (dev->vpd)
2084 dev->vpd->len = 0x80;
2085 }
2086}
2087
Yu Zhaobffadff2008-10-28 14:44:11 +08002088DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2089 PCI_DEVICE_ID_NX2_5706,
2090 quirk_brcm_570x_limit_vpd);
2091DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2092 PCI_DEVICE_ID_NX2_5706S,
2093 quirk_brcm_570x_limit_vpd);
2094DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2095 PCI_DEVICE_ID_NX2_5708,
2096 quirk_brcm_570x_limit_vpd);
2097DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2098 PCI_DEVICE_ID_NX2_5708S,
2099 quirk_brcm_570x_limit_vpd);
2100DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2101 PCI_DEVICE_ID_NX2_5709,
2102 quirk_brcm_570x_limit_vpd);
2103DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2104 PCI_DEVICE_ID_NX2_5709S,
2105 quirk_brcm_570x_limit_vpd);
Benjamin Li99cb233d2008-07-02 10:59:04 -07002106
Myron Stowe25e742b2012-07-09 15:36:14 -06002107static void quirk_brcm_5719_limit_mrrs(struct pci_dev *dev)
Matt Carlson0b471502012-02-27 09:44:48 +00002108{
2109 u32 rev;
2110
2111 pci_read_config_dword(dev, 0xf4, &rev);
2112
2113 /* Only CAP the MRRS if the device is a 5719 A0 */
2114 if (rev == 0x05719000) {
2115 int readrq = pcie_get_readrq(dev);
2116 if (readrq > 2048)
2117 pcie_set_readrq(dev, 2048);
2118 }
2119}
2120
2121DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_BROADCOM,
2122 PCI_DEVICE_ID_TIGON3_5719,
2123 quirk_brcm_5719_limit_mrrs);
2124
Michal Miroslaw26c56dc2009-05-12 13:49:26 -07002125/* Originally in EDAC sources for i82875P:
2126 * Intel tells BIOS developers to hide device 6 which
2127 * configures the overflow device access containing
2128 * the DRBs - this is where we expose device 6.
2129 * http://www.x86-secret.com/articles/tweak/pat/patsecrets-2.htm
2130 */
2131static void __devinit quirk_unhide_mch_dev6(struct pci_dev *dev)
2132{
2133 u8 reg;
2134
2135 if (pci_read_config_byte(dev, 0xF4, &reg) == 0 && !(reg & 0x02)) {
2136 dev_info(&dev->dev, "Enabling MCH 'Overflow' Device\n");
2137 pci_write_config_byte(dev, 0xF4, reg | 0x02);
2138 }
2139}
2140
2141DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB,
2142 quirk_unhide_mch_dev6);
2143DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB,
2144 quirk_unhide_mch_dev6);
2145
Chris Metcalff02cbbe2010-11-02 12:05:10 -04002146#ifdef CONFIG_TILE
2147/*
2148 * The Tilera TILEmpower platform needs to set the link speed
2149 * to 2.5GT(Giga-Transfers)/s (Gen 1). The default link speed
2150 * setting is 5GT/s (Gen 2). 0x98 is the Link Control2 PCIe
2151 * capability register of the PEX8624 PCIe switch. The switch
2152 * supports link speed auto negotiation, but falsely sets
2153 * the link speed to 5GT/s.
2154 */
2155static void __devinit quirk_tile_plx_gen1(struct pci_dev *dev)
2156{
2157 if (tile_plx_gen1) {
2158 pci_write_config_dword(dev, 0x98, 0x1);
2159 mdelay(50);
2160 }
2161}
2162DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8624, quirk_tile_plx_gen1);
2163#endif /* CONFIG_TILE */
Michal Miroslaw26c56dc2009-05-12 13:49:26 -07002164
Brice Goglin3f79e102006-08-31 01:54:56 -04002165#ifdef CONFIG_PCI_MSI
Tejun Heoebdf7d32007-05-31 00:40:48 -07002166/* Some chipsets do not support MSI. We cannot easily rely on setting
2167 * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
2168 * some other busses controlled by the chipset even if Linux is not
2169 * aware of it. Instead of setting the flag on all busses in the
2170 * machine, simply disable MSI globally.
Brice Goglin3f79e102006-08-31 01:54:56 -04002171 */
Myron Stowe3274c8e2012-07-09 15:36:39 -06002172static void __devinit quirk_disable_all_msi(struct pci_dev *dev)
Brice Goglin3f79e102006-08-31 01:54:56 -04002173{
Michael Ellerman88187df2007-01-25 19:34:07 +11002174 pci_no_msi();
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07002175 dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n");
Brice Goglin3f79e102006-08-31 01:54:56 -04002176}
Tejun Heoebdf7d32007-05-31 00:40:48 -07002177DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
2178DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
2179DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
Tejun Heo66d715c2008-07-04 09:59:32 -07002180DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
Jay Cliburn184b8122007-05-26 17:01:04 -05002181DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
Thomas Renninger162dedd2009-04-03 06:34:00 -07002182DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi);
Tejun Heo549e1562010-05-23 10:22:55 +02002183DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi);
Brice Goglin3f79e102006-08-31 01:54:56 -04002184
2185/* Disable MSI on chipsets that are known to not support it */
2186static void __devinit quirk_disable_msi(struct pci_dev *dev)
2187{
2188 if (dev->subordinate) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07002189 dev_warn(&dev->dev, "MSI quirk detected; "
2190 "subordinate MSI disabled\n");
Brice Goglin3f79e102006-08-31 01:54:56 -04002191 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2192 }
2193}
2194DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
Matthew Wilcox134b3452010-03-24 07:11:01 -06002195DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0xa238, quirk_disable_msi);
Alex Deucher9313ff42010-05-18 10:42:53 -04002196DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x5a3f, quirk_disable_msi);
Brice Goglin6397c752006-08-31 01:55:32 -04002197
Clemens Ladischaff61362010-05-26 12:21:10 +02002198/*
2199 * The APC bridge device in AMD 780 family northbridges has some random
2200 * OEM subsystem ID in its vendor ID register (erratum 18), so instead
2201 * we use the possible vendor/device IDs of the host bridge for the
2202 * declared quirk, and search for the APC bridge by slot number.
2203 */
2204static void __devinit quirk_amd_780_apc_msi(struct pci_dev *host_bridge)
2205{
2206 struct pci_dev *apc_bridge;
2207
2208 apc_bridge = pci_get_slot(host_bridge->bus, PCI_DEVFN(1, 0));
2209 if (apc_bridge) {
2210 if (apc_bridge->device == 0x9602)
2211 quirk_disable_msi(apc_bridge);
2212 pci_dev_put(apc_bridge);
2213 }
2214}
2215DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9600, quirk_amd_780_apc_msi);
2216DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9601, quirk_amd_780_apc_msi);
2217
Brice Goglin6397c752006-08-31 01:55:32 -04002218/* Go through the list of Hypertransport capabilities and
2219 * return 1 if a HT MSI capability is found and enabled */
Myron Stowe25e742b2012-07-09 15:36:14 -06002220static int msi_ht_cap_enabled(struct pci_dev *dev)
Brice Goglin6397c752006-08-31 01:55:32 -04002221{
Michael Ellerman7a380502006-11-22 18:26:21 +11002222 int pos, ttl = 48;
2223
2224 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2225 while (pos && ttl--) {
2226 u8 flags;
2227
2228 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2229 &flags) == 0)
2230 {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07002231 dev_info(&dev->dev, "Found %s HT MSI Mapping\n",
Michael Ellerman7a380502006-11-22 18:26:21 +11002232 flags & HT_MSI_FLAGS_ENABLE ?
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07002233 "enabled" : "disabled");
Michael Ellerman7a380502006-11-22 18:26:21 +11002234 return (flags & HT_MSI_FLAGS_ENABLE) != 0;
Brice Goglin6397c752006-08-31 01:55:32 -04002235 }
Michael Ellerman7a380502006-11-22 18:26:21 +11002236
2237 pos = pci_find_next_ht_capability(dev, pos,
2238 HT_CAPTYPE_MSI_MAPPING);
Brice Goglin6397c752006-08-31 01:55:32 -04002239 }
2240 return 0;
2241}
2242
2243/* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
Myron Stowe25e742b2012-07-09 15:36:14 -06002244static void quirk_msi_ht_cap(struct pci_dev *dev)
Brice Goglin6397c752006-08-31 01:55:32 -04002245{
2246 if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07002247 dev_warn(&dev->dev, "MSI quirk detected; "
2248 "subordinate MSI disabled\n");
Brice Goglin6397c752006-08-31 01:55:32 -04002249 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2250 }
2251}
2252DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
2253 quirk_msi_ht_cap);
Sebastien Dugue6bae1d92007-12-13 16:09:25 -08002254
Brice Goglin6397c752006-08-31 01:55:32 -04002255/* The nVidia CK804 chipset may have 2 HT MSI mappings.
2256 * MSI are supported if the MSI capability set in any of these mappings.
2257 */
Myron Stowe25e742b2012-07-09 15:36:14 -06002258static void quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
Brice Goglin6397c752006-08-31 01:55:32 -04002259{
2260 struct pci_dev *pdev;
2261
2262 if (!dev->subordinate)
2263 return;
2264
2265 /* check HT MSI cap on this chipset and the root one.
2266 * a single one having MSI is enough to be sure that MSI are supported.
2267 */
Alan Cox11f242f2006-10-10 14:39:00 -07002268 pdev = pci_get_slot(dev->bus, 0);
Jesper Juhl9ac0ce82006-12-04 15:14:48 -08002269 if (!pdev)
2270 return;
David Rientjes0c875c22006-12-03 11:55:34 -08002271 if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
bjorn.helgaas@hp.comf0fda802007-12-17 14:09:39 -07002272 dev_warn(&dev->dev, "MSI quirk detected; "
2273 "subordinate MSI disabled\n");
Brice Goglin6397c752006-08-31 01:55:32 -04002274 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2275 }
Alan Cox11f242f2006-10-10 14:39:00 -07002276 pci_dev_put(pdev);
Brice Goglin6397c752006-08-31 01:55:32 -04002277}
2278DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2279 quirk_nvidia_ck804_msi_ht_cap);
David Millerba698ad2007-10-25 01:16:30 -07002280
Bjorn Helgaas415b6d02008-02-29 16:04:39 -07002281/* Force enable MSI mapping capability on HT bridges */
Myron Stowe25e742b2012-07-09 15:36:14 -06002282static void ht_enable_msi_mapping(struct pci_dev *dev)
Peer Chen9dc625e2008-02-04 23:50:13 -08002283{
2284 int pos, ttl = 48;
2285
2286 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2287 while (pos && ttl--) {
2288 u8 flags;
2289
2290 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2291 &flags) == 0) {
2292 dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
2293
2294 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2295 flags | HT_MSI_FLAGS_ENABLE);
2296 }
2297 pos = pci_find_next_ht_capability(dev, pos,
2298 HT_CAPTYPE_MSI_MAPPING);
2299 }
2300}
Bjorn Helgaas415b6d02008-02-29 16:04:39 -07002301DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
2302 PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
2303 ht_enable_msi_mapping);
Peer Chen9dc625e2008-02-04 23:50:13 -08002304
Yinghai Lue0ae4f52009-02-17 20:40:09 -08002305DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
2306 ht_enable_msi_mapping);
2307
Ben Hutchingse4146bb2010-05-16 02:28:49 +01002308/* The P5N32-SLI motherboards from Asus have a problem with msi
Andreas Petlund75e07fc2008-11-20 20:42:25 -08002309 * for the MCP55 NIC. It is not yet determined whether the msi problem
2310 * also affects other devices. As for now, turn off msi for this device.
2311 */
2312static void __devinit nvenet_msi_disable(struct pci_dev *dev)
2313{
Jean Delvare9251bac2011-05-15 18:13:46 +02002314 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
2315
2316 if (board_name &&
2317 (strstr(board_name, "P5N32-SLI PREMIUM") ||
2318 strstr(board_name, "P5N32-E SLI"))) {
Andreas Petlund75e07fc2008-11-20 20:42:25 -08002319 dev_info(&dev->dev,
Ben Hutchingse4146bb2010-05-16 02:28:49 +01002320 "Disabling msi for MCP55 NIC on P5N32-SLI\n");
Andreas Petlund75e07fc2008-11-20 20:42:25 -08002321 dev->no_msi = 1;
2322 }
2323}
2324DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2325 PCI_DEVICE_ID_NVIDIA_NVENET_15,
2326 nvenet_msi_disable);
2327
Neil Horman66db60e2010-09-21 13:54:39 -04002328/*
2329 * Some versions of the MCP55 bridge from nvidia have a legacy irq routing
2330 * config register. This register controls the routing of legacy interrupts
2331 * from devices that route through the MCP55. If this register is misprogramed
2332 * interrupts are only sent to the bsp, unlike conventional systems where the
2333 * irq is broadxast to all online cpus. Not having this register set
2334 * properly prevents kdump from booting up properly, so lets make sure that
2335 * we have it set correctly.
2336 * Note this is an undocumented register.
2337 */
2338static void __devinit nvbridge_check_legacy_irq_routing(struct pci_dev *dev)
2339{
2340 u32 cfg;
2341
Neil Horman49c2fa082010-12-08 09:47:48 -05002342 if (!pci_find_capability(dev, PCI_CAP_ID_HT))
2343 return;
2344
Neil Horman66db60e2010-09-21 13:54:39 -04002345 pci_read_config_dword(dev, 0x74, &cfg);
2346
2347 if (cfg & ((1 << 2) | (1 << 15))) {
2348 printk(KERN_INFO "Rewriting irq routing register on MCP55\n");
2349 cfg &= ~((1 << 2) | (1 << 15));
2350 pci_write_config_dword(dev, 0x74, cfg);
2351 }
2352}
2353
2354DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2355 PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V0,
2356 nvbridge_check_legacy_irq_routing);
2357
2358DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2359 PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V4,
2360 nvbridge_check_legacy_irq_routing);
2361
Myron Stowe25e742b2012-07-09 15:36:14 -06002362static int ht_check_msi_mapping(struct pci_dev *dev)
Yinghai Lude745302009-03-20 19:29:41 -07002363{
2364 int pos, ttl = 48;
2365 int found = 0;
2366
2367 /* check if there is HT MSI cap or enabled on this device */
2368 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2369 while (pos && ttl--) {
2370 u8 flags;
2371
2372 if (found < 1)
2373 found = 1;
2374 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2375 &flags) == 0) {
2376 if (flags & HT_MSI_FLAGS_ENABLE) {
2377 if (found < 2) {
2378 found = 2;
2379 break;
2380 }
2381 }
2382 }
2383 pos = pci_find_next_ht_capability(dev, pos,
2384 HT_CAPTYPE_MSI_MAPPING);
2385 }
2386
2387 return found;
2388}
2389
Myron Stowe25e742b2012-07-09 15:36:14 -06002390static int host_bridge_with_leaf(struct pci_dev *host_bridge)
Yinghai Lude745302009-03-20 19:29:41 -07002391{
2392 struct pci_dev *dev;
2393 int pos;
2394 int i, dev_no;
2395 int found = 0;
2396
2397 dev_no = host_bridge->devfn >> 3;
2398 for (i = dev_no + 1; i < 0x20; i++) {
2399 dev = pci_get_slot(host_bridge->bus, PCI_DEVFN(i, 0));
2400 if (!dev)
2401 continue;
2402
2403 /* found next host bridge ?*/
2404 pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
2405 if (pos != 0) {
2406 pci_dev_put(dev);
2407 break;
2408 }
2409
2410 if (ht_check_msi_mapping(dev)) {
2411 found = 1;
2412 pci_dev_put(dev);
2413 break;
2414 }
2415 pci_dev_put(dev);
2416 }
2417
2418 return found;
2419}
2420
Yinghai Lueeafda72009-03-29 12:30:05 -07002421#define PCI_HT_CAP_SLAVE_CTRL0 4 /* link control */
2422#define PCI_HT_CAP_SLAVE_CTRL1 8 /* link control to */
2423
Myron Stowe25e742b2012-07-09 15:36:14 -06002424static int is_end_of_ht_chain(struct pci_dev *dev)
Yinghai Lueeafda72009-03-29 12:30:05 -07002425{
2426 int pos, ctrl_off;
2427 int end = 0;
2428 u16 flags, ctrl;
2429
2430 pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
2431
2432 if (!pos)
2433 goto out;
2434
2435 pci_read_config_word(dev, pos + PCI_CAP_FLAGS, &flags);
2436
2437 ctrl_off = ((flags >> 10) & 1) ?
2438 PCI_HT_CAP_SLAVE_CTRL0 : PCI_HT_CAP_SLAVE_CTRL1;
2439 pci_read_config_word(dev, pos + ctrl_off, &ctrl);
2440
2441 if (ctrl & (1 << 6))
2442 end = 1;
2443
2444out:
2445 return end;
2446}
2447
Myron Stowe25e742b2012-07-09 15:36:14 -06002448static void nv_ht_enable_msi_mapping(struct pci_dev *dev)
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002449{
2450 struct pci_dev *host_bridge;
2451 int pos;
2452 int i, dev_no;
2453 int found = 0;
2454
2455 dev_no = dev->devfn >> 3;
2456 for (i = dev_no; i >= 0; i--) {
2457 host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0));
2458 if (!host_bridge)
2459 continue;
2460
2461 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
2462 if (pos != 0) {
2463 found = 1;
2464 break;
2465 }
2466 pci_dev_put(host_bridge);
2467 }
2468
2469 if (!found)
2470 return;
2471
Yinghai Lueeafda72009-03-29 12:30:05 -07002472 /* don't enable end_device/host_bridge with leaf directly here */
2473 if (host_bridge == dev && is_end_of_ht_chain(host_bridge) &&
2474 host_bridge_with_leaf(host_bridge))
Yinghai Lude745302009-03-20 19:29:41 -07002475 goto out;
2476
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002477 /* root did that ! */
2478 if (msi_ht_cap_enabled(host_bridge))
2479 goto out;
2480
2481 ht_enable_msi_mapping(dev);
2482
2483out:
2484 pci_dev_put(host_bridge);
2485}
2486
Myron Stowe25e742b2012-07-09 15:36:14 -06002487static void ht_disable_msi_mapping(struct pci_dev *dev)
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002488{
2489 int pos, ttl = 48;
2490
2491 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2492 while (pos && ttl--) {
2493 u8 flags;
2494
2495 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2496 &flags) == 0) {
Prakash Punnoor6a958d52009-03-06 10:10:35 +01002497 dev_info(&dev->dev, "Disabling HT MSI Mapping\n");
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002498
2499 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2500 flags & ~HT_MSI_FLAGS_ENABLE);
2501 }
2502 pos = pci_find_next_ht_capability(dev, pos,
2503 HT_CAPTYPE_MSI_MAPPING);
2504 }
2505}
2506
Myron Stowe25e742b2012-07-09 15:36:14 -06002507static void __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all)
Peer Chen9dc625e2008-02-04 23:50:13 -08002508{
2509 struct pci_dev *host_bridge;
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002510 int pos;
2511 int found;
2512
Rafael J. Wysocki3d2a5312010-07-23 22:19:55 +02002513 if (!pci_msi_enabled())
2514 return;
2515
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002516 /* check if there is HT MSI cap or enabled on this device */
2517 found = ht_check_msi_mapping(dev);
2518
2519 /* no HT MSI CAP */
2520 if (found == 0)
2521 return;
Peer Chen9dc625e2008-02-04 23:50:13 -08002522
2523 /*
2524 * HT MSI mapping should be disabled on devices that are below
2525 * a non-Hypertransport host bridge. Locate the host bridge...
2526 */
2527 host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
2528 if (host_bridge == NULL) {
2529 dev_warn(&dev->dev,
2530 "nv_msi_ht_cap_quirk didn't locate host bridge\n");
2531 return;
2532 }
2533
2534 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
2535 if (pos != 0) {
2536 /* Host bridge is to HT */
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002537 if (found == 1) {
2538 /* it is not enabled, try to enable it */
Yinghai Lude745302009-03-20 19:29:41 -07002539 if (all)
2540 ht_enable_msi_mapping(dev);
2541 else
2542 nv_ht_enable_msi_mapping(dev);
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002543 }
Myron Stowedff3aef2012-07-09 15:36:08 -06002544 goto out;
Peer Chen9dc625e2008-02-04 23:50:13 -08002545 }
2546
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002547 /* HT MSI is not enabled */
2548 if (found == 1)
Myron Stowedff3aef2012-07-09 15:36:08 -06002549 goto out;
Peer Chen9dc625e2008-02-04 23:50:13 -08002550
Yinghai Lu1dec6b02009-02-23 11:51:59 -08002551 /* Host bridge is not to HT, disable HT MSI mapping on this device */
2552 ht_disable_msi_mapping(dev);
Myron Stowedff3aef2012-07-09 15:36:08 -06002553
2554out:
2555 pci_dev_put(host_bridge);
Peer Chen9dc625e2008-02-04 23:50:13 -08002556}
Yinghai Lude745302009-03-20 19:29:41 -07002557
Myron Stowe25e742b2012-07-09 15:36:14 -06002558static void nv_msi_ht_cap_quirk_all(struct pci_dev *dev)
Yinghai Lude745302009-03-20 19:29:41 -07002559{
2560 return __nv_msi_ht_cap_quirk(dev, 1);
2561}
2562
Myron Stowe25e742b2012-07-09 15:36:14 -06002563static void nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev)
Yinghai Lude745302009-03-20 19:29:41 -07002564{
2565 return __nv_msi_ht_cap_quirk(dev, 0);
2566}
2567
2568DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
Tejun Heo6dab62e2009-07-21 16:08:43 -07002569DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
Yinghai Lude745302009-03-20 19:29:41 -07002570
2571DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
Tejun Heo6dab62e2009-07-21 16:08:43 -07002572DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
Peer Chen9dc625e2008-02-04 23:50:13 -08002573
David Millerba698ad2007-10-25 01:16:30 -07002574static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
2575{
2576 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2577}
Shane Huang4600c9d2008-01-25 15:46:24 +09002578static void __devinit quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
2579{
2580 struct pci_dev *p;
2581
2582 /* SB700 MSI issue will be fixed at HW level from revision A21,
2583 * we need check PCI REVISION ID of SMBus controller to get SB700
2584 * revision.
2585 */
2586 p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
2587 NULL);
2588 if (!p)
2589 return;
2590
2591 if ((p->revision < 0x3B) && (p->revision >= 0x30))
2592 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2593 pci_dev_put(p);
2594}
David Millerba698ad2007-10-25 01:16:30 -07002595DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2596 PCI_DEVICE_ID_TIGON3_5780,
2597 quirk_msi_intx_disable_bug);
2598DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2599 PCI_DEVICE_ID_TIGON3_5780S,
2600 quirk_msi_intx_disable_bug);
2601DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2602 PCI_DEVICE_ID_TIGON3_5714,
2603 quirk_msi_intx_disable_bug);
2604DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2605 PCI_DEVICE_ID_TIGON3_5714S,
2606 quirk_msi_intx_disable_bug);
2607DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2608 PCI_DEVICE_ID_TIGON3_5715,
2609 quirk_msi_intx_disable_bug);
2610DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2611 PCI_DEVICE_ID_TIGON3_5715S,
2612 quirk_msi_intx_disable_bug);
2613
David Millerbc38b412007-10-25 01:16:52 -07002614DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
Shane Huang4600c9d2008-01-25 15:46:24 +09002615 quirk_msi_intx_disable_ati_bug);
David Millerbc38b412007-10-25 01:16:52 -07002616DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
Shane Huang4600c9d2008-01-25 15:46:24 +09002617 quirk_msi_intx_disable_ati_bug);
David Millerbc38b412007-10-25 01:16:52 -07002618DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
Shane Huang4600c9d2008-01-25 15:46:24 +09002619 quirk_msi_intx_disable_ati_bug);
David Millerbc38b412007-10-25 01:16:52 -07002620DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
Shane Huang4600c9d2008-01-25 15:46:24 +09002621 quirk_msi_intx_disable_ati_bug);
David Millerbc38b412007-10-25 01:16:52 -07002622DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
Shane Huang4600c9d2008-01-25 15:46:24 +09002623 quirk_msi_intx_disable_ati_bug);
David Millerbc38b412007-10-25 01:16:52 -07002624
2625DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
2626 quirk_msi_intx_disable_bug);
2627DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
2628 quirk_msi_intx_disable_bug);
2629DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
2630 quirk_msi_intx_disable_bug);
2631
Huang, Xiong7cb6a292012-04-30 15:38:49 +00002632DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1062,
2633 quirk_msi_intx_disable_bug);
2634DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1063,
2635 quirk_msi_intx_disable_bug);
2636DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2060,
2637 quirk_msi_intx_disable_bug);
2638DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2062,
2639 quirk_msi_intx_disable_bug);
2640DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1073,
2641 quirk_msi_intx_disable_bug);
2642DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1083,
2643 quirk_msi_intx_disable_bug);
Brice Goglin3f79e102006-08-31 01:54:56 -04002644#endif /* CONFIG_PCI_MSI */
Thomas Petazzoni3d137312008-08-19 10:28:24 +02002645
Felix Radensky33223402010-03-28 16:02:02 +03002646/* Allow manual resource allocation for PCI hotplug bridges
2647 * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For
2648 * some PCI-PCI hotplug bridges, like PLX 6254 (former HINT HB6),
2649 * kernel fails to allocate resources when hotplug device is
2650 * inserted and PCI bus is rescanned.
2651 */
2652static void __devinit quirk_hotplug_bridge(struct pci_dev *dev)
2653{
2654 dev->is_hotplug_bridge = 1;
2655}
2656
2657DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0020, quirk_hotplug_bridge);
2658
Maxim Levitsky03cd8f72010-03-05 13:43:20 -08002659/*
2660 * This is a quirk for the Ricoh MMC controller found as a part of
2661 * some mulifunction chips.
2662
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002663 * This is very similar and based on the ricoh_mmc driver written by
Maxim Levitsky03cd8f72010-03-05 13:43:20 -08002664 * Philip Langdale. Thank you for these magic sequences.
2665 *
2666 * These chips implement the four main memory card controllers (SD, MMC, MS, xD)
2667 * and one or both of cardbus or firewire.
2668 *
2669 * It happens that they implement SD and MMC
2670 * support as separate controllers (and PCI functions). The linux SDHCI
2671 * driver supports MMC cards but the chip detects MMC cards in hardware
2672 * and directs them to the MMC controller - so the SDHCI driver never sees
2673 * them.
2674 *
2675 * To get around this, we must disable the useless MMC controller.
2676 * At that point, the SDHCI controller will start seeing them
2677 * It seems to be the case that the relevant PCI registers to deactivate the
2678 * MMC controller live on PCI function 0, which might be the cardbus controller
2679 * or the firewire controller, depending on the particular chip in question
2680 *
2681 * This has to be done early, because as soon as we disable the MMC controller
2682 * other pci functions shift up one level, e.g. function #2 becomes function
2683 * #1, and this will confuse the pci core.
2684 */
2685
2686#ifdef CONFIG_MMC_RICOH_MMC
2687static void ricoh_mmc_fixup_rl5c476(struct pci_dev *dev)
2688{
2689 /* disable via cardbus interface */
2690 u8 write_enable;
2691 u8 write_target;
2692 u8 disable;
2693
2694 /* disable must be done via function #0 */
2695 if (PCI_FUNC(dev->devfn))
2696 return;
2697
2698 pci_read_config_byte(dev, 0xB7, &disable);
2699 if (disable & 0x02)
2700 return;
2701
2702 pci_read_config_byte(dev, 0x8E, &write_enable);
2703 pci_write_config_byte(dev, 0x8E, 0xAA);
2704 pci_read_config_byte(dev, 0x8D, &write_target);
2705 pci_write_config_byte(dev, 0x8D, 0xB7);
2706 pci_write_config_byte(dev, 0xB7, disable | 0x02);
2707 pci_write_config_byte(dev, 0x8E, write_enable);
2708 pci_write_config_byte(dev, 0x8D, write_target);
2709
2710 dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via cardbus function)\n");
2711 dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller\n");
2712}
2713DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476);
2714DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476);
2715
2716static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev)
2717{
2718 /* disable via firewire interface */
2719 u8 write_enable;
2720 u8 disable;
2721
2722 /* disable must be done via function #0 */
2723 if (PCI_FUNC(dev->devfn))
2724 return;
Manoj Iyer15bed0f2011-07-11 16:28:35 -05002725 /*
2726 * RICOH 0xe823 SD/MMC card reader fails to recognize
2727 * certain types of SD/MMC cards. Lowering the SD base
2728 * clock frequency from 200Mhz to 50Mhz fixes this issue.
2729 *
2730 * 0x150 - SD2.0 mode enable for changing base clock
2731 * frequency to 50Mhz
2732 * 0xe1 - Base clock frequency
2733 * 0x32 - 50Mhz new clock frequency
2734 * 0xf9 - Key register for 0x150
2735 * 0xfc - key register for 0xe1
2736 */
2737 if (dev->device == PCI_DEVICE_ID_RICOH_R5CE823) {
2738 pci_write_config_byte(dev, 0xf9, 0xfc);
2739 pci_write_config_byte(dev, 0x150, 0x10);
2740 pci_write_config_byte(dev, 0xf9, 0x00);
2741 pci_write_config_byte(dev, 0xfc, 0x01);
2742 pci_write_config_byte(dev, 0xe1, 0x32);
2743 pci_write_config_byte(dev, 0xfc, 0x00);
2744
2745 dev_notice(&dev->dev, "MMC controller base frequency changed to 50Mhz.\n");
2746 }
Josh Boyer3e309cd2011-10-05 11:44:50 -04002747
2748 pci_read_config_byte(dev, 0xCB, &disable);
2749
2750 if (disable & 0x02)
2751 return;
2752
2753 pci_read_config_byte(dev, 0xCA, &write_enable);
2754 pci_write_config_byte(dev, 0xCA, 0x57);
2755 pci_write_config_byte(dev, 0xCB, disable | 0x02);
2756 pci_write_config_byte(dev, 0xCA, write_enable);
2757
2758 dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via firewire function)\n");
2759 dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller\n");
2760
Maxim Levitsky03cd8f72010-03-05 13:43:20 -08002761}
2762DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
2763DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
Manoj Iyerbe98ca62011-05-26 11:19:05 -05002764DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
2765DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
Maxim Levitsky03cd8f72010-03-05 13:43:20 -08002766#endif /*CONFIG_MMC_RICOH_MMC*/
2767
Suresh Siddhad3f13812011-08-23 17:05:25 -07002768#ifdef CONFIG_DMAR_TABLE
Suresh Siddha254e42002010-12-06 12:26:30 -08002769#define VTUNCERRMSK_REG 0x1ac
2770#define VTD_MSK_SPEC_ERRORS (1 << 31)
2771/*
2772 * This is a quirk for masking vt-d spec defined errors to platform error
2773 * handling logic. With out this, platforms using Intel 7500, 5500 chipsets
2774 * (and the derivative chipsets like X58 etc) seem to generate NMI/SMI (based
2775 * on the RAS config settings of the platform) when a vt-d fault happens.
2776 * The resulting SMI caused the system to hang.
2777 *
2778 * VT-d spec related errors are already handled by the VT-d OS code, so no
2779 * need to report the same error through other channels.
2780 */
2781static void vtd_mask_spec_errors(struct pci_dev *dev)
2782{
2783 u32 word;
2784
2785 pci_read_config_dword(dev, VTUNCERRMSK_REG, &word);
2786 pci_write_config_dword(dev, VTUNCERRMSK_REG, word | VTD_MSK_SPEC_ERRORS);
2787}
2788DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors);
2789DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors);
2790#endif
Maxim Levitsky03cd8f72010-03-05 13:43:20 -08002791
Hemant Pedanekar63c44082011-04-05 12:32:50 +05302792static void __devinit fixup_ti816x_class(struct pci_dev* dev)
2793{
2794 /* TI 816x devices do not have class code set when in PCIe boot mode */
Yinghai Lu40c96232012-02-23 23:46:58 -08002795 dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n");
2796 dev->class = PCI_CLASS_MULTIMEDIA_VIDEO;
Hemant Pedanekar63c44082011-04-05 12:32:50 +05302797}
Yinghai Lu40c96232012-02-23 23:46:58 -08002798DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_TI, 0xb800,
2799 PCI_CLASS_NOT_DEFINED, 0, fixup_ti816x_class);
Hemant Pedanekar63c44082011-04-05 12:32:50 +05302800
Ben Hutchingsa94d0722011-10-05 22:35:03 +01002801/* Some PCIe devices do not work reliably with the claimed maximum
2802 * payload size supported.
2803 */
2804static void __devinit fixup_mpss_256(struct pci_dev *dev)
2805{
2806 dev->pcie_mpss = 1; /* 256 bytes */
2807}
2808DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
2809 PCI_DEVICE_ID_SOLARFLARE_SFC4000A_0, fixup_mpss_256);
2810DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
2811 PCI_DEVICE_ID_SOLARFLARE_SFC4000A_1, fixup_mpss_256);
2812DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
2813 PCI_DEVICE_ID_SOLARFLARE_SFC4000B, fixup_mpss_256);
2814
Jon Masond387a8d2011-10-14 14:56:13 -05002815/* Intel 5000 and 5100 Memory controllers have an errata with read completion
2816 * coalescing (which is enabled by default on some BIOSes) and MPS of 256B.
2817 * Since there is no way of knowing what the PCIE MPS on each fabric will be
2818 * until all of the devices are discovered and buses walked, read completion
2819 * coalescing must be disabled. Unfortunately, it cannot be re-enabled because
2820 * it is possible to hotplug a device with MPS of 256B.
2821 */
2822static void __devinit quirk_intel_mc_errata(struct pci_dev *dev)
2823{
2824 int err;
2825 u16 rcc;
2826
2827 if (pcie_bus_config == PCIE_BUS_TUNE_OFF)
2828 return;
2829
2830 /* Intel errata specifies bits to change but does not say what they are.
2831 * Keeping them magical until such time as the registers and values can
2832 * be explained.
2833 */
2834 err = pci_read_config_word(dev, 0x48, &rcc);
2835 if (err) {
2836 dev_err(&dev->dev, "Error attempting to read the read "
2837 "completion coalescing register.\n");
2838 return;
2839 }
2840
2841 if (!(rcc & (1 << 10)))
2842 return;
2843
2844 rcc &= ~(1 << 10);
2845
2846 err = pci_write_config_word(dev, 0x48, rcc);
2847 if (err) {
2848 dev_err(&dev->dev, "Error attempting to write the read "
2849 "completion coalescing register.\n");
2850 return;
2851 }
2852
2853 pr_info_once("Read completion coalescing disabled due to hardware "
2854 "errata relating to 256B MPS.\n");
2855}
2856/* Intel 5000 series memory controllers and ports 2-7 */
2857DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25c0, quirk_intel_mc_errata);
2858DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d0, quirk_intel_mc_errata);
2859DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d4, quirk_intel_mc_errata);
2860DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d8, quirk_intel_mc_errata);
2861DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_mc_errata);
2862DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_mc_errata);
2863DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_mc_errata);
2864DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_mc_errata);
2865DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_mc_errata);
2866DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_mc_errata);
2867DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_mc_errata);
2868DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_mc_errata);
2869DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_mc_errata);
2870DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_mc_errata);
2871/* Intel 5100 series memory controllers and ports 2-7 */
2872DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65c0, quirk_intel_mc_errata);
2873DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e2, quirk_intel_mc_errata);
2874DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e3, quirk_intel_mc_errata);
2875DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e4, quirk_intel_mc_errata);
2876DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e5, quirk_intel_mc_errata);
2877DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e6, quirk_intel_mc_errata);
2878DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e7, quirk_intel_mc_errata);
2879DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f7, quirk_intel_mc_errata);
2880DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f8, quirk_intel_mc_errata);
2881DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata);
2882DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata);
2883
Arjan van de Ven32098742012-01-30 20:52:07 -08002884
Myron Stowe2729d5b2012-07-09 15:36:02 -06002885static ktime_t fixup_debug_start(struct pci_dev *dev,
2886 void (*fn)(struct pci_dev *dev))
Arjan van de Ven32098742012-01-30 20:52:07 -08002887{
Myron Stowe2729d5b2012-07-09 15:36:02 -06002888 ktime_t calltime = ktime_set(0, 0);
2889
2890 dev_dbg(&dev->dev, "calling %pF\n", fn);
2891 if (initcall_debug) {
2892 pr_debug("calling %pF @ %i for %s\n",
2893 fn, task_pid_nr(current), dev_name(&dev->dev));
2894 calltime = ktime_get();
2895 }
2896
2897 return calltime;
2898}
2899
2900static void fixup_debug_report(struct pci_dev *dev, ktime_t calltime,
2901 void (*fn)(struct pci_dev *dev))
2902{
2903 ktime_t delta, rettime;
Arjan van de Ven32098742012-01-30 20:52:07 -08002904 unsigned long long duration;
2905
Myron Stowe2729d5b2012-07-09 15:36:02 -06002906 if (initcall_debug) {
2907 rettime = ktime_get();
2908 delta = ktime_sub(rettime, calltime);
2909 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2910 pr_debug("pci fixup %pF returned after %lld usecs for %s\n",
2911 fn, duration, dev_name(&dev->dev));
2912 }
Arjan van de Ven32098742012-01-30 20:52:07 -08002913}
2914
Thomas Jaroschf67fd552011-12-07 22:08:11 +01002915/*
2916 * Some BIOS implementations leave the Intel GPU interrupts enabled,
2917 * even though no one is handling them (f.e. i915 driver is never loaded).
2918 * Additionally the interrupt destination is not set up properly
2919 * and the interrupt ends up -somewhere-.
2920 *
2921 * These spurious interrupts are "sticky" and the kernel disables
2922 * the (shared) interrupt line after 100.000+ generated interrupts.
2923 *
2924 * Fix it by disabling the still enabled interrupts.
2925 * This resolves crashes often seen on monitor unplug.
2926 */
2927#define I915_DEIER_REG 0x4400c
2928static void __devinit disable_igfx_irq(struct pci_dev *dev)
2929{
2930 void __iomem *regs = pci_iomap(dev, 0, 0);
2931 if (regs == NULL) {
2932 dev_warn(&dev->dev, "igfx quirk: Can't iomap PCI device\n");
2933 return;
2934 }
2935
2936 /* Check if any interrupt line is still enabled */
2937 if (readl(regs + I915_DEIER_REG) != 0) {
2938 dev_warn(&dev->dev, "BIOS left Intel GPU interrupts enabled; "
2939 "disabling\n");
2940
2941 writel(0, regs + I915_DEIER_REG);
2942 }
2943
2944 pci_iounmap(dev, regs);
2945}
2946DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
2947DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
2948
Jesse Barnesbfb0f332008-10-27 17:50:21 -07002949static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
2950 struct pci_fixup *end)
Thomas Petazzoni3d137312008-08-19 10:28:24 +02002951{
Myron Stowe2729d5b2012-07-09 15:36:02 -06002952 ktime_t calltime;
2953
Yinghai Luf4ca5c62012-02-23 23:46:49 -08002954 for (; f < end; f++)
2955 if ((f->class == (u32) (dev->class >> f->class_shift) ||
2956 f->class == (u32) PCI_ANY_ID) &&
2957 (f->vendor == dev->vendor ||
2958 f->vendor == (u16) PCI_ANY_ID) &&
2959 (f->device == dev->device ||
2960 f->device == (u16) PCI_ANY_ID)) {
Myron Stowe2729d5b2012-07-09 15:36:02 -06002961 calltime = fixup_debug_start(dev, f->hook);
2962 f->hook(dev);
2963 fixup_debug_report(dev, calltime, f->hook);
Thomas Petazzoni3d137312008-08-19 10:28:24 +02002964 }
Thomas Petazzoni3d137312008-08-19 10:28:24 +02002965}
2966
2967extern struct pci_fixup __start_pci_fixups_early[];
2968extern struct pci_fixup __end_pci_fixups_early[];
2969extern struct pci_fixup __start_pci_fixups_header[];
2970extern struct pci_fixup __end_pci_fixups_header[];
2971extern struct pci_fixup __start_pci_fixups_final[];
2972extern struct pci_fixup __end_pci_fixups_final[];
2973extern struct pci_fixup __start_pci_fixups_enable[];
2974extern struct pci_fixup __end_pci_fixups_enable[];
2975extern struct pci_fixup __start_pci_fixups_resume[];
2976extern struct pci_fixup __end_pci_fixups_resume[];
2977extern struct pci_fixup __start_pci_fixups_resume_early[];
2978extern struct pci_fixup __end_pci_fixups_resume_early[];
2979extern struct pci_fixup __start_pci_fixups_suspend[];
2980extern struct pci_fixup __end_pci_fixups_suspend[];
2981
Myron Stowe95df8b82012-07-13 14:29:00 -06002982static bool pci_apply_fixup_final_quirks;
Thomas Petazzoni3d137312008-08-19 10:28:24 +02002983
2984void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
2985{
2986 struct pci_fixup *start, *end;
2987
2988 switch(pass) {
2989 case pci_fixup_early:
2990 start = __start_pci_fixups_early;
2991 end = __end_pci_fixups_early;
2992 break;
2993
2994 case pci_fixup_header:
2995 start = __start_pci_fixups_header;
2996 end = __end_pci_fixups_header;
2997 break;
2998
2999 case pci_fixup_final:
Myron Stowe95df8b82012-07-13 14:29:00 -06003000 if (!pci_apply_fixup_final_quirks)
3001 return;
Thomas Petazzoni3d137312008-08-19 10:28:24 +02003002 start = __start_pci_fixups_final;
3003 end = __end_pci_fixups_final;
3004 break;
3005
3006 case pci_fixup_enable:
3007 start = __start_pci_fixups_enable;
3008 end = __end_pci_fixups_enable;
3009 break;
3010
3011 case pci_fixup_resume:
3012 start = __start_pci_fixups_resume;
3013 end = __end_pci_fixups_resume;
3014 break;
3015
3016 case pci_fixup_resume_early:
3017 start = __start_pci_fixups_resume_early;
3018 end = __end_pci_fixups_resume_early;
3019 break;
3020
3021 case pci_fixup_suspend:
3022 start = __start_pci_fixups_suspend;
3023 end = __end_pci_fixups_suspend;
3024 break;
3025
3026 default:
3027 /* stupid compiler warning, you would think with an enum... */
3028 return;
3029 }
3030 pci_do_fixups(dev, start, end);
3031}
Rafael J. Wysocki93177a72010-01-02 22:57:24 +01003032EXPORT_SYMBOL(pci_fixup_device);
David Woodhouse8d86fb22009-10-12 12:48:43 +01003033
Myron Stowe735bff12012-07-09 15:36:46 -06003034
David Woodhouse00010262009-10-12 12:50:34 +01003035static int __init pci_apply_final_quirks(void)
David Woodhouse8d86fb22009-10-12 12:48:43 +01003036{
3037 struct pci_dev *dev = NULL;
Jesse Barnesac1aa472009-10-26 13:20:44 -07003038 u8 cls = 0;
3039 u8 tmp;
3040
3041 if (pci_cache_line_size)
3042 printk(KERN_DEBUG "PCI: CLS %u bytes\n",
3043 pci_cache_line_size << 2);
David Woodhouse8d86fb22009-10-12 12:48:43 +01003044
Myron Stowe95df8b82012-07-13 14:29:00 -06003045 pci_apply_fixup_final_quirks = true;
Kulikov Vasiliy4e344b12010-07-03 20:04:39 +04003046 for_each_pci_dev(dev) {
David Woodhouse8d86fb22009-10-12 12:48:43 +01003047 pci_fixup_device(pci_fixup_final, dev);
Jesse Barnesac1aa472009-10-26 13:20:44 -07003048 /*
3049 * If arch hasn't set it explicitly yet, use the CLS
3050 * value shared by all PCI devices. If there's a
3051 * mismatch, fall back to the default value.
3052 */
3053 if (!pci_cache_line_size) {
3054 pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &tmp);
3055 if (!cls)
3056 cls = tmp;
3057 if (!tmp || cls == tmp)
3058 continue;
3059
3060 printk(KERN_DEBUG "PCI: CLS mismatch (%u != %u), "
3061 "using %u bytes\n", cls << 2, tmp << 2,
3062 pci_dfl_cache_line_size << 2);
3063 pci_cache_line_size = pci_dfl_cache_line_size;
3064 }
3065 }
Myron Stowe735bff12012-07-09 15:36:46 -06003066
Jesse Barnesac1aa472009-10-26 13:20:44 -07003067 if (!pci_cache_line_size) {
3068 printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n",
3069 cls << 2, pci_dfl_cache_line_size << 2);
Csaba Henk2820f332009-12-15 17:55:25 +05303070 pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size;
David Woodhouse8d86fb22009-10-12 12:48:43 +01003071 }
3072
3073 return 0;
3074}
3075
David Woodhousecf6f3bf2009-10-12 12:51:22 +01003076fs_initcall_sync(pci_apply_final_quirks);
Dexuan Cuib9c3b262009-12-07 13:03:21 +08003077
3078/*
3079 * Followings are device-specific reset methods which can be used to
3080 * reset a single function if other methods (e.g. FLR, PM D0->D3) are
3081 * not available.
3082 */
Dexuan Cuiaeb30012009-12-07 13:03:22 +08003083static int reset_intel_generic_dev(struct pci_dev *dev, int probe)
3084{
3085 int pos;
3086
3087 /* only implement PCI_CLASS_SERIAL_USB at present */
3088 if (dev->class == PCI_CLASS_SERIAL_USB) {
3089 pos = pci_find_capability(dev, PCI_CAP_ID_VNDR);
3090 if (!pos)
3091 return -ENOTTY;
3092
3093 if (probe)
3094 return 0;
3095
3096 pci_write_config_byte(dev, pos + 0x4, 1);
3097 msleep(100);
3098
3099 return 0;
3100 } else {
3101 return -ENOTTY;
3102 }
3103}
3104
Dexuan Cuic763e7b2009-12-07 13:03:23 +08003105static int reset_intel_82599_sfp_virtfn(struct pci_dev *dev, int probe)
3106{
3107 int pos;
3108
3109 pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
3110 if (!pos)
3111 return -ENOTTY;
3112
3113 if (probe)
3114 return 0;
3115
3116 pci_write_config_word(dev, pos + PCI_EXP_DEVCTL,
3117 PCI_EXP_DEVCTL_BCR_FLR);
3118 msleep(100);
3119
3120 return 0;
3121}
3122
Xudong Haodf558de2012-04-27 09:16:46 -06003123#include "../gpu/drm/i915/i915_reg.h"
3124#define MSG_CTL 0x45010
3125#define NSDE_PWR_STATE 0xd0100
3126#define IGD_OPERATION_TIMEOUT 10000 /* set timeout 10 seconds */
3127
3128static int reset_ivb_igd(struct pci_dev *dev, int probe)
3129{
3130 void __iomem *mmio_base;
3131 unsigned long timeout;
3132 u32 val;
3133
3134 if (probe)
3135 return 0;
3136
3137 mmio_base = pci_iomap(dev, 0, 0);
3138 if (!mmio_base)
3139 return -ENOMEM;
3140
3141 iowrite32(0x00000002, mmio_base + MSG_CTL);
3142
3143 /*
3144 * Clobbering SOUTH_CHICKEN2 register is fine only if the next
3145 * driver loaded sets the right bits. However, this's a reset and
3146 * the bits have been set by i915 previously, so we clobber
3147 * SOUTH_CHICKEN2 register directly here.
3148 */
3149 iowrite32(0x00000005, mmio_base + SOUTH_CHICKEN2);
3150
3151 val = ioread32(mmio_base + PCH_PP_CONTROL) & 0xfffffffe;
3152 iowrite32(val, mmio_base + PCH_PP_CONTROL);
3153
3154 timeout = jiffies + msecs_to_jiffies(IGD_OPERATION_TIMEOUT);
3155 do {
3156 val = ioread32(mmio_base + PCH_PP_STATUS);
3157 if ((val & 0xb0000000) == 0)
3158 goto reset_complete;
3159 msleep(10);
3160 } while (time_before(jiffies, timeout));
3161 dev_warn(&dev->dev, "timeout during reset\n");
3162
3163reset_complete:
3164 iowrite32(0x00000002, mmio_base + NSDE_PWR_STATE);
3165
3166 pci_iounmap(dev, mmio_base);
3167 return 0;
3168}
3169
Dexuan Cuic763e7b2009-12-07 13:03:23 +08003170#define PCI_DEVICE_ID_INTEL_82599_SFP_VF 0x10ed
Xudong Haodf558de2012-04-27 09:16:46 -06003171#define PCI_DEVICE_ID_INTEL_IVB_M_VGA 0x0156
3172#define PCI_DEVICE_ID_INTEL_IVB_M2_VGA 0x0166
Dexuan Cuic763e7b2009-12-07 13:03:23 +08003173
Rafael J. Wysocki5b889bf2009-12-31 19:06:35 +01003174static const struct pci_dev_reset_methods pci_dev_reset_methods[] = {
Dexuan Cuic763e7b2009-12-07 13:03:23 +08003175 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82599_SFP_VF,
3176 reset_intel_82599_sfp_virtfn },
Xudong Haodf558de2012-04-27 09:16:46 -06003177 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_M_VGA,
3178 reset_ivb_igd },
3179 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_M2_VGA,
3180 reset_ivb_igd },
Dexuan Cuiaeb30012009-12-07 13:03:22 +08003181 { PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
3182 reset_intel_generic_dev },
Dexuan Cuib9c3b262009-12-07 13:03:21 +08003183 { 0 }
3184};
Rafael J. Wysocki5b889bf2009-12-31 19:06:35 +01003185
Xudong Haodf558de2012-04-27 09:16:46 -06003186/*
3187 * These device-specific reset methods are here rather than in a driver
3188 * because when a host assigns a device to a guest VM, the host may need
3189 * to reset the device but probably doesn't have a driver for it.
3190 */
Rafael J. Wysocki5b889bf2009-12-31 19:06:35 +01003191int pci_dev_specific_reset(struct pci_dev *dev, int probe)
3192{
Linus Torvaldsdf9d1e82009-12-31 16:44:43 -08003193 const struct pci_dev_reset_methods *i;
Rafael J. Wysocki5b889bf2009-12-31 19:06:35 +01003194
3195 for (i = pci_dev_reset_methods; i->reset; i++) {
3196 if ((i->vendor == dev->vendor ||
3197 i->vendor == (u16)PCI_ANY_ID) &&
3198 (i->device == dev->device ||
3199 i->device == (u16)PCI_ANY_ID))
3200 return i->reset(dev, probe);
3201 }
3202
3203 return -ENOTTY;
3204}