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[net-next-2.6.git] / drivers / pci / quirks.c
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1da177e4
LT		 1/*
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 *
7586269c
DB		 10 * Init/reset quirks for USB host controllers should be in the
11 * USB quirks file, where their drivers can access reuse it.
12 *
1da177e4
LT		 13 * 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
1da177e4
LT		 18#include <linux/types.h>
19#include <linux/kernel.h>
20#include <linux/pci.h>
21#include <linux/init.h>
22#include <linux/delay.h>
25be5e6c 23#include <linux/acpi.h>
bc56b9e0 24#include "pci.h"
1da177e4 25
bd8481e1
DT		 26/* The Mellanox Tavor device gives false positive parity errors
27 * Mark this device with a broken_parity_status, to allow
28 * PCI scanning code to "skip" this now blacklisted device.
29 */
30static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
31{
32 dev->broken_parity_status = 1; /* This device gives false positives */
33}
34DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
35DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
36
1da177e4
LT		 37/* Deal with broken BIOS'es that neglect to enable passive release,
38 which can cause problems in combination with the 82441FX/PPro MTRRs */
1597cacb 39static void quirk_passive_release(struct pci_dev *dev)
1da177e4
LT		 40{
41 struct pci_dev *d = NULL;
42 unsigned char dlc;
43
44 /* We have to make sure a particular bit is set in the PIIX3
45 ISA bridge, so we have to go out and find it. */
46 while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
47 pci_read_config_byte(d, 0x82, &dlc);
48 if (!(dlc & 1<<1)) {
49 printk(KERN_ERR "PCI: PIIX3: Enabling Passive Release on %s\n", pci_name(d));
50 dlc |= 1<<1;
51 pci_write_config_byte(d, 0x82, dlc);
52 }
53 }
54}
55DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release );
1597cacb 56DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release );
1da177e4
LT		 57
58/* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
59 but VIA don't answer queries. If you happen to have good contacts at VIA
60 ask them for me please -- Alan
61
62 This appears to be BIOS not version dependent. So presumably there is a
63 chipset level fix */
c30ca1db
AB		 64int isa_dma_bridge_buggy;
65EXPORT_SYMBOL(isa_dma_bridge_buggy);
1da177e4
LT		 66
67static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
68{
69 if (!isa_dma_bridge_buggy) {
70 isa_dma_bridge_buggy=1;
71 printk(KERN_INFO "Activating ISA DMA hang workarounds.\n");
72 }
73}
74 /*
75 * Its not totally clear which chipsets are the problematic ones
76 * We know 82C586 and 82C596 variants are affected.
77 */
78DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs );
79DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs );
80DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs );
81DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs );
82DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs );
83DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs );
84DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs );
85
86int pci_pci_problems;
c30ca1db 87EXPORT_SYMBOL(pci_pci_problems);
1da177e4
LT		 88
89/*
90 * Chipsets where PCI->PCI transfers vanish or hang
91 */
92static void __devinit quirk_nopcipci(struct pci_dev *dev)
93{
94 if ((pci_pci_problems & PCIPCI_FAIL)==0) {
95 printk(KERN_INFO "Disabling direct PCI/PCI transfers.\n");
96 pci_pci_problems |= PCIPCI_FAIL;
97 }
98}
c30ca1db
AB		 99DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci );
100DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci );
236561e5
AC		 101
102static void __devinit quirk_nopciamd(struct pci_dev *dev)
103{
104 u8 rev;
105 pci_read_config_byte(dev, 0x08, &rev);
106 if (rev == 0x13) {
107 /* Erratum 24 */
108 printk(KERN_INFO "Chipset erratum: Disabling direct PCI/AGP transfers.\n");
109 pci_pci_problems |= PCIAGP_FAIL;
110 }
111}
236561e5 112DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd );
1da177e4
LT		 113
114/*
115 * Triton requires workarounds to be used by the drivers
116 */
117static void __devinit quirk_triton(struct pci_dev *dev)
118{
119 if ((pci_pci_problems&PCIPCI_TRITON)==0) {
120 printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
121 pci_pci_problems |= PCIPCI_TRITON;
122 }
123}
124DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton );
125DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton );
126DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton );
127DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton );
128
129/*
130 * VIA Apollo KT133 needs PCI latency patch
131 * Made according to a windows driver based patch by George E. Breese
132 * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
133 * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
134 * the info on which Mr Breese based his work.
135 *
136 * Updated based on further information from the site and also on
137 * information provided by VIA
138 */
1597cacb 139static void quirk_vialatency(struct pci_dev *dev)
1da177e4
LT		 140{
141 struct pci_dev *p;
142 u8 rev;
143 u8 busarb;
144 /* Ok we have a potential problem chipset here. Now see if we have
145 a buggy southbridge */
146
147 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
148 if (p!=NULL) {
149 pci_read_config_byte(p, PCI_CLASS_REVISION, &rev);
150 /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
151 /* Check for buggy part revisions */
152 if (rev < 0x40 || rev > 0x42)
153 goto exit;
154 } else {
155 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
156 if (p==NULL) /* No problem parts */
157 goto exit;
158 pci_read_config_byte(p, PCI_CLASS_REVISION, &rev);
159 /* Check for buggy part revisions */
160 if (rev < 0x10 || rev > 0x12)
161 goto exit;
162 }
163
164 /*
165 * Ok we have the problem. Now set the PCI master grant to
166 * occur every master grant. The apparent bug is that under high
167 * PCI load (quite common in Linux of course) you can get data
168 * loss when the CPU is held off the bus for 3 bus master requests
169 * This happens to include the IDE controllers....
170 *
171 * VIA only apply this fix when an SB Live! is present but under
172 * both Linux and Windows this isnt enough, and we have seen
173 * corruption without SB Live! but with things like 3 UDMA IDE
174 * controllers. So we ignore that bit of the VIA recommendation..
175 */
176
177 pci_read_config_byte(dev, 0x76, &busarb);
178 /* Set bit 4 and bi 5 of byte 76 to 0x01
179 "Master priority rotation on every PCI master grant */
180 busarb &= ~(1<<5);
181 busarb |= (1<<4);
182 pci_write_config_byte(dev, 0x76, busarb);
183 printk(KERN_INFO "Applying VIA southbridge workaround.\n");
184exit:
185 pci_dev_put(p);
186}
187DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency );
188DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency );
189DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency );
1597cacb
AC		 190/* Must restore this on a resume from RAM */
191DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency );
192DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency );
193DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency );
1da177e4
LT		 194
195/*
196 * VIA Apollo VP3 needs ETBF on BT848/878
197 */
198static void __devinit quirk_viaetbf(struct pci_dev *dev)
199{
200 if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
201 printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
202 pci_pci_problems |= PCIPCI_VIAETBF;
203 }
204}
205DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf );
206
207static void __devinit quirk_vsfx(struct pci_dev *dev)
208{
209 if ((pci_pci_problems&PCIPCI_VSFX)==0) {
210 printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
211 pci_pci_problems |= PCIPCI_VSFX;
212 }
213}
214DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx );
215
216/*
217 * Ali Magik requires workarounds to be used by the drivers
218 * that DMA to AGP space. Latency must be set to 0xA and triton
219 * workaround applied too
220 * [Info kindly provided by ALi]
221 */
222static void __init quirk_alimagik(struct pci_dev *dev)
223{
224 if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
225 printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
226 pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
227 }
228}
229DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik );
230DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik );
231
232/*
233 * Natoma has some interesting boundary conditions with Zoran stuff
234 * at least
235 */
236static void __devinit quirk_natoma(struct pci_dev *dev)
237{
238 if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
239 printk(KERN_INFO "Limiting direct PCI/PCI transfers.\n");
240 pci_pci_problems |= PCIPCI_NATOMA;
241 }
242}
243DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma );
244DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma );
245DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma );
246DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma );
247DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma );
248DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma );
249
250/*
251 * This chip can cause PCI parity errors if config register 0xA0 is read
252 * while DMAs are occurring.
253 */
254static void __devinit quirk_citrine(struct pci_dev *dev)
255{
256 dev->cfg_size = 0xA0;
257}
258DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine );
259
260/*
261 * S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
262 * If it's needed, re-allocate the region.
263 */
264static void __devinit quirk_s3_64M(struct pci_dev *dev)
265{
266 struct resource *r = &dev->resource[0];
267
268 if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
269 r->start = 0;
270 r->end = 0x3ffffff;
271 }
272}
273DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M );
274DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M );
275
6693e74a
LT		 276static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
277 unsigned size, int nr, const char *name)
1da177e4
LT		 278{
279 region &= ~(size-1);
280 if (region) {
085ae41f 281 struct pci_bus_region bus_region;
1da177e4
LT		 282 struct resource *res = dev->resource + nr;
283
284 res->name = pci_name(dev);
285 res->start = region;
286 res->end = region + size - 1;
287 res->flags = IORESOURCE_IO;
085ae41f
DM		 288
289 /* Convert from PCI bus to resource space. */
290 bus_region.start = res->start;
291 bus_region.end = res->end;
292 pcibios_bus_to_resource(dev, res, &bus_region);
293
1da177e4 294 pci_claim_resource(dev, nr);
6693e74a 295 printk("PCI quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
1da177e4
LT		 296 }
297}
298
299/*
300 * ATI Northbridge setups MCE the processor if you even
301 * read somewhere between 0x3b0->0x3bb or read 0x3d3
302 */
303static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
304{
305 printk(KERN_INFO "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb.\n");
306 /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
307 request_region(0x3b0, 0x0C, "RadeonIGP");
308 request_region(0x3d3, 0x01, "RadeonIGP");
309}
310DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce );
311
312/*
313 * Let's make the southbridge information explicit instead
314 * of having to worry about people probing the ACPI areas,
315 * for example.. (Yes, it happens, and if you read the wrong
316 * ACPI register it will put the machine to sleep with no
317 * way of waking it up again. Bummer).
318 *
319 * ALI M7101: Two IO regions pointed to by words at
320 * 0xE0 (64 bytes of ACPI registers)
321 * 0xE2 (32 bytes of SMB registers)
322 */
323static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
324{
325 u16 region;
326
327 pci_read_config_word(dev, 0xE0, &region);
6693e74a 328 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
1da177e4 329 pci_read_config_word(dev, 0xE2, &region);
6693e74a 330 quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
1da177e4
LT		 331}
332DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi );
333
6693e74a
LT		 334static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
335{
336 u32 devres;
337 u32 mask, size, base;
338
339 pci_read_config_dword(dev, port, &devres);
340 if ((devres & enable) != enable)
341 return;
342 mask = (devres >> 16) & 15;
343 base = devres & 0xffff;
344 size = 16;
345 for (;;) {
346 unsigned bit = size >> 1;
347 if ((bit & mask) == bit)
348 break;
349 size = bit;
350 }
351 /*
352 * For now we only print it out. Eventually we'll want to
353 * reserve it (at least if it's in the 0x1000+ range), but
354 * let's get enough confirmation reports first.
355 */
356 base &= -size;
357 printk("%s PIO at %04x-%04x\n", name, base, base + size - 1);
358}
359
360static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
361{
362 u32 devres;
363 u32 mask, size, base;
364
365 pci_read_config_dword(dev, port, &devres);
366 if ((devres & enable) != enable)
367 return;
368 base = devres & 0xffff0000;
369 mask = (devres & 0x3f) << 16;
370 size = 128 << 16;
371 for (;;) {
372 unsigned bit = size >> 1;
373 if ((bit & mask) == bit)
374 break;
375 size = bit;
376 }
377 /*
378 * For now we only print it out. Eventually we'll want to
379 * reserve it, but let's get enough confirmation reports first.
380 */
381 base &= -size;
382 printk("%s MMIO at %04x-%04x\n", name, base, base + size - 1);
383}
384
1da177e4
LT		 385/*
386 * PIIX4 ACPI: Two IO regions pointed to by longwords at
387 * 0x40 (64 bytes of ACPI registers)
08db2a70 388 * 0x90 (16 bytes of SMB registers)
6693e74a 389 * and a few strange programmable PIIX4 device resources.
1da177e4
LT		 390 */
391static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
392{
6693e74a 393 u32 region, res_a;
1da177e4
LT		 394
395 pci_read_config_dword(dev, 0x40, &region);
6693e74a 396 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
1da177e4 397 pci_read_config_dword(dev, 0x90, &region);
08db2a70 398 quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
6693e74a
LT		 399
400 /* Device resource A has enables for some of the other ones */
401 pci_read_config_dword(dev, 0x5c, &res_a);
402
403 piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
404 piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
405
406 /* Device resource D is just bitfields for static resources */
407
408 /* Device 12 enabled? */
409 if (res_a & (1 << 29)) {
410 piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
411 piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
412 }
413 /* Device 13 enabled? */
414 if (res_a & (1 << 30)) {
415 piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
416 piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
417 }
418 piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
419 piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
1da177e4
LT		 420}
421DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi );
c6764664 422DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi );
1da177e4
LT		 423
424/*
425 * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
426 * 0x40 (128 bytes of ACPI, GPIO & TCO registers)
427 * 0x58 (64 bytes of GPIO I/O space)
428 */
429static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
430{
431 u32 region;
432
433 pci_read_config_dword(dev, 0x40, &region);
6693e74a 434 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO");
1da177e4
LT		 435
436 pci_read_config_dword(dev, 0x58, &region);
6693e74a 437 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO");
1da177e4
LT		 438}
439DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi );
440DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi );
441DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi );
442DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi );
443DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi );
444DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi );
445DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi );
446DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi );
447DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi );
3aa8c4fe 448DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi );
1da177e4 449
2cea752f
RM		 450static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev)
451{
452 u32 region;
453
454 pci_read_config_dword(dev, 0x40, &region);
455 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH6 ACPI/GPIO/TCO");
456
457 pci_read_config_dword(dev, 0x48, &region);
458 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO");
459}
65ae4ddd 460DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi );
2cea752f 461DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi );
bacedce3
DR		 462DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich6_lpc_acpi );
463DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich6_lpc_acpi );
464DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich6_lpc_acpi );
465DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich6_lpc_acpi );
466DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich6_lpc_acpi );
467DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich6_lpc_acpi );
d1ec7298
ZY		 468DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich6_lpc_acpi );
469DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich6_lpc_acpi );
470DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich6_lpc_acpi );
471DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich6_lpc_acpi );
472DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich6_lpc_acpi );
473DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich6_lpc_acpi );
2cea752f 474
1da177e4
LT		 475/*
476 * VIA ACPI: One IO region pointed to by longword at
477 * 0x48 or 0x20 (256 bytes of ACPI registers)
478 */
479static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
480{
1da177e4
LT		 481 u32 region;
482
651472fb 483 if (dev->revision & 0x10) {
1da177e4
LT		 484 pci_read_config_dword(dev, 0x48, &region);
485 region &= PCI_BASE_ADDRESS_IO_MASK;
6693e74a 486 quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
1da177e4
LT		 487 }
488}
489DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi );
490
491/*
492 * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
493 * 0x48 (256 bytes of ACPI registers)
494 * 0x70 (128 bytes of hardware monitoring register)
495 * 0x90 (16 bytes of SMB registers)
496 */
497static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
498{
499 u16 hm;
500 u32 smb;
501
502 quirk_vt82c586_acpi(dev);
503
504 pci_read_config_word(dev, 0x70, &hm);
505 hm &= PCI_BASE_ADDRESS_IO_MASK;
02f313b2 506 quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
1da177e4
LT		 507
508 pci_read_config_dword(dev, 0x90, &smb);
509 smb &= PCI_BASE_ADDRESS_IO_MASK;
02f313b2 510 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
1da177e4
LT		 511}
512DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi );
513
6d85f29b
IK		 514/*
515 * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
516 * 0x88 (128 bytes of power management registers)
517 * 0xd0 (16 bytes of SMB registers)
518 */
519static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
520{
521 u16 pm, smb;
522
523 pci_read_config_word(dev, 0x88, &pm);
524 pm &= PCI_BASE_ADDRESS_IO_MASK;
6693e74a 525 quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
6d85f29b
IK		 526
527 pci_read_config_word(dev, 0xd0, &smb);
528 smb &= PCI_BASE_ADDRESS_IO_MASK;
6693e74a 529 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
6d85f29b
IK		 530}
531DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
532
1da177e4
LT		 533
534#ifdef CONFIG_X86_IO_APIC
535
536#include <asm/io_apic.h>
537
538/*
539 * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
540 * devices to the external APIC.
541 *
542 * TODO: When we have device-specific interrupt routers,
543 * this code will go away from quirks.
544 */
1597cacb 545static void quirk_via_ioapic(struct pci_dev *dev)
1da177e4
LT		 546{
547 u8 tmp;
548
549 if (nr_ioapics < 1)
550 tmp = 0; /* nothing routed to external APIC */
551 else
552 tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
553
554 printk(KERN_INFO "PCI: %sbling Via external APIC routing\n",
555 tmp == 0 ? "Disa" : "Ena");
556
557 /* Offset 0x58: External APIC IRQ output control */
558 pci_write_config_byte (dev, 0x58, tmp);
559}
560DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic );
1597cacb 561DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic );
1da177e4 562
a1740913
KW		 563/*
564 * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
565 * This leads to doubled level interrupt rates.
566 * Set this bit to get rid of cycle wastage.
567 * Otherwise uncritical.
568 */
1597cacb 569static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
a1740913
KW		 570{
571 u8 misc_control2;
572#define BYPASS_APIC_DEASSERT 8
573
574 pci_read_config_byte(dev, 0x5B, &misc_control2);
575 if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
576 printk(KERN_INFO "PCI: Bypassing VIA 8237 APIC De-Assert Message\n");
577 pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
578 }
579}
580DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
1597cacb 581DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
a1740913 582
1da177e4
LT		 583/*
584 * The AMD io apic can hang the box when an apic irq is masked.
585 * We check all revs >= B0 (yet not in the pre production!) as the bug
586 * is currently marked NoFix
587 *
588 * We have multiple reports of hangs with this chipset that went away with
236561e5 589 * noapic specified. For the moment we assume it's the erratum. We may be wrong
1da177e4
LT		 590 * of course. However the advice is demonstrably good even if so..
591 */
592static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
593{
44c10138 594 if (dev->revision >= 0x02) {
236561e5 595 printk(KERN_WARNING "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
1da177e4
LT		 596 printk(KERN_WARNING " : booting with the \"noapic\" option.\n");
597 }
598}
599DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic );
600
601static void __init quirk_ioapic_rmw(struct pci_dev *dev)
602{
603 if (dev->devfn == 0 && dev->bus->number == 0)
604 sis_apic_bug = 1;
605}
606DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw );
607
1da177e4
LT		 608#define AMD8131_revA0 0x01
609#define AMD8131_revB0 0x11
610#define AMD8131_MISC 0x40
611#define AMD8131_NIOAMODE_BIT 0
1597cacb 612static void quirk_amd_8131_ioapic(struct pci_dev *dev)
1da177e4 613{
44c10138 614 unsigned char tmp;
1da177e4 615
1da177e4
LT		 616 if (nr_ioapics == 0)
617 return;
618
44c10138 619 if (dev->revision == AMD8131_revA0 || dev->revision == AMD8131_revB0) {
1da177e4
LT		 620 printk(KERN_INFO "Fixing up AMD8131 IOAPIC mode\n");
621 pci_read_config_byte( dev, AMD8131_MISC, &tmp);
622 tmp &= ~(1 << AMD8131_NIOAMODE_BIT);
623 pci_write_config_byte( dev, AMD8131_MISC, tmp);
624 }
625}
5da594b1 626DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
1597cacb 627DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
1da177e4
LT		 628#endif /* CONFIG_X86_IO_APIC */
629
d556ad4b
PO		 630/*
631 * Some settings of MMRBC can lead to data corruption so block changes.
632 * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
633 */
634static void __init quirk_amd_8131_mmrbc(struct pci_dev *dev)
635{
aa288d4d 636 if (dev->subordinate && dev->revision <= 0x12) {
b7b095c1 637 printk(KERN_INFO "AMD8131 rev %x detected, disabling PCI-X "
aa288d4d 638 "MMRBC\n", dev->revision);
d556ad4b
PO		 639 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
640 }
641}
642DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
1da177e4 643
1da177e4
LT		 644/*
645 * FIXME: it is questionable that quirk_via_acpi
646 * is needed. It shows up as an ISA bridge, and does not
647 * support the PCI_INTERRUPT_LINE register at all. Therefore
648 * it seems like setting the pci_dev's 'irq' to the
649 * value of the ACPI SCI interrupt is only done for convenience.
650 * -jgarzik
651 */
652static void __devinit quirk_via_acpi(struct pci_dev *d)
653{
654 /*
655 * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
656 */
657 u8 irq;
658 pci_read_config_byte(d, 0x42, &irq);
659 irq &= 0xf;
660 if (irq && (irq != 2))
661 d->irq = irq;
662}
663DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi );
664DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi );
665
09d6029f
DD		 666
667/*
1597cacb 668 * VIA bridges which have VLink
09d6029f 669 */
1597cacb 670
c06bb5d4
JD		 671static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
672
673static void quirk_via_bridge(struct pci_dev *dev)
674{
675 /* See what bridge we have and find the device ranges */
676 switch (dev->device) {
677 case PCI_DEVICE_ID_VIA_82C686:
cb7468ef
JD		 678 /* The VT82C686 is special, it attaches to PCI and can have
679 any device number. All its subdevices are functions of
680 that single device. */
681 via_vlink_dev_lo = PCI_SLOT(dev->devfn);
682 via_vlink_dev_hi = PCI_SLOT(dev->devfn);
c06bb5d4
JD		 683 break;
684 case PCI_DEVICE_ID_VIA_8237:
685 case PCI_DEVICE_ID_VIA_8237A:
686 via_vlink_dev_lo = 15;
687 break;
688 case PCI_DEVICE_ID_VIA_8235:
689 via_vlink_dev_lo = 16;
690 break;
691 case PCI_DEVICE_ID_VIA_8231:
692 case PCI_DEVICE_ID_VIA_8233_0:
693 case PCI_DEVICE_ID_VIA_8233A:
694 case PCI_DEVICE_ID_VIA_8233C_0:
695 via_vlink_dev_lo = 17;
696 break;
697 }
698}
699DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
700DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
701DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
702DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
703DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
704DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
705DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
706DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
09d6029f 707
1597cacb
AC		 708/**
709 * quirk_via_vlink - VIA VLink IRQ number update
710 * @dev: PCI device
711 *
712 * If the device we are dealing with is on a PIC IRQ we need to
713 * ensure that the IRQ line register which usually is not relevant
714 * for PCI cards, is actually written so that interrupts get sent
c06bb5d4
JD		 715 * to the right place.
716 * We only do this on systems where a VIA south bridge was detected,
717 * and only for VIA devices on the motherboard (see quirk_via_bridge
718 * above).
1597cacb
AC		 719 */
720
721static void quirk_via_vlink(struct pci_dev *dev)
25be5e6c
LB		 722{
723 u8 irq, new_irq;
724
c06bb5d4
JD		 725 /* Check if we have VLink at all */
726 if (via_vlink_dev_lo == -1)
09d6029f
DD		 727 return;
728
729 new_irq = dev->irq;
730
731 /* Don't quirk interrupts outside the legacy IRQ range */
732 if (!new_irq || new_irq > 15)
733 return;
734
1597cacb 735 /* Internal device ? */
c06bb5d4
JD		 736 if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
737 PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
1597cacb
AC		 738 return;
739
740 /* This is an internal VLink device on a PIC interrupt. The BIOS
741 ought to have set this but may not have, so we redo it */
742
25be5e6c
LB		 743 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
744 if (new_irq != irq) {
1597cacb 745 printk(KERN_INFO "PCI: VIA VLink IRQ fixup for %s, from %d to %d\n",
25be5e6c
LB		 746 pci_name(dev), irq, new_irq);
747 udelay(15); /* unknown if delay really needed */
748 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
749 }
750}
1597cacb 751DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
25be5e6c 752
1da177e4
LT		 753/*
754 * VIA VT82C598 has its device ID settable and many BIOSes
755 * set it to the ID of VT82C597 for backward compatibility.
756 * We need to switch it off to be able to recognize the real
757 * type of the chip.
758 */
759static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
760{
761 pci_write_config_byte(dev, 0xfc, 0);
762 pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
763}
764DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id );
765
766/*
767 * CardBus controllers have a legacy base address that enables them
768 * to respond as i82365 pcmcia controllers. We don't want them to
769 * do this even if the Linux CardBus driver is not loaded, because
770 * the Linux i82365 driver does not (and should not) handle CardBus.
771 */
1597cacb 772static void quirk_cardbus_legacy(struct pci_dev *dev)
1da177e4
LT		 773{
774 if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
775 return;
776 pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
777}
778DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
1597cacb 779DECLARE_PCI_FIXUP_RESUME(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
1da177e4
LT		 780
781/*
782 * Following the PCI ordering rules is optional on the AMD762. I'm not
783 * sure what the designers were smoking but let's not inhale...
784 *
785 * To be fair to AMD, it follows the spec by default, its BIOS people
786 * who turn it off!
787 */
1597cacb 788static void quirk_amd_ordering(struct pci_dev *dev)
1da177e4
LT		 789{
790 u32 pcic;
791 pci_read_config_dword(dev, 0x4C, &pcic);
792 if ((pcic&6)!=6) {
793 pcic |= 6;
794 printk(KERN_WARNING "BIOS failed to enable PCI standards compliance, fixing this error.\n");
795 pci_write_config_dword(dev, 0x4C, pcic);
796 pci_read_config_dword(dev, 0x84, &pcic);
797 pcic |= (1<<23); /* Required in this mode */
798 pci_write_config_dword(dev, 0x84, pcic);
799 }
800}
801DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering );
1597cacb 802DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering );
1da177e4
LT		 803
804/*
805 * DreamWorks provided workaround for Dunord I-3000 problem
806 *
807 * This card decodes and responds to addresses not apparently
808 * assigned to it. We force a larger allocation to ensure that
809 * nothing gets put too close to it.
810 */
811static void __devinit quirk_dunord ( struct pci_dev * dev )
812{
813 struct resource *r = &dev->resource [1];
814 r->start = 0;
815 r->end = 0xffffff;
816}
817DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord );
818
819/*
820 * i82380FB mobile docking controller: its PCI-to-PCI bridge
821 * is subtractive decoding (transparent), and does indicate this
822 * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
823 * instead of 0x01.
824 */
825static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
826{
827 dev->transparent = 1;
828}
829DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge );
830DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge );
831
832/*
833 * Common misconfiguration of the MediaGX/Geode PCI master that will
834 * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
835 * datasheets found at http://www.national.com/ds/GX for info on what
836 * these bits do. <christer@weinigel.se>
837 */
1597cacb 838static void quirk_mediagx_master(struct pci_dev *dev)
1da177e4
LT		 839{
840 u8 reg;
841 pci_read_config_byte(dev, 0x41, &reg);
842 if (reg & 2) {
843 reg &= ~2;
844 printk(KERN_INFO "PCI: Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
845 pci_write_config_byte(dev, 0x41, reg);
846 }
847}
848DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master );
1597cacb 849DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master );
1da177e4 850
1da177e4
LT		 851/*
852 * Ensure C0 rev restreaming is off. This is normally done by
853 * the BIOS but in the odd case it is not the results are corruption
854 * hence the presence of a Linux check
855 */
1597cacb 856static void quirk_disable_pxb(struct pci_dev *pdev)
1da177e4
LT		 857{
858 u16 config;
1da177e4 859
44c10138 860 if (pdev->revision != 0x04) /* Only C0 requires this */
1da177e4
LT		 861 return;
862 pci_read_config_word(pdev, 0x40, &config);
863 if (config & (1<<6)) {
864 config &= ~(1<<6);
865 pci_write_config_word(pdev, 0x40, config);
866 printk(KERN_INFO "PCI: C0 revision 450NX. Disabling PCI restreaming.\n");
867 }
868}
869DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb );
1597cacb 870DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb );
1da177e4 871
1da177e4 872
ab17443a
CH		 873static void __devinit quirk_sb600_sata(struct pci_dev *pdev)
874{
875 /* set sb600 sata to ahci mode */
876 if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
877 u8 tmp;
878
879 pci_read_config_byte(pdev, 0x40, &tmp);
880 pci_write_config_byte(pdev, 0x40, tmp|1);
881 pci_write_config_byte(pdev, 0x9, 1);
882 pci_write_config_byte(pdev, 0xa, 6);
883 pci_write_config_byte(pdev, 0x40, tmp);
884
c9f89475 885 pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
ab17443a
CH		 886 }
887}
888DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_sb600_sata);
82377718 889DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_sb600_sata);
ab17443a 890
1da177e4
LT		 891/*
892 * Serverworks CSB5 IDE does not fully support native mode
893 */
894static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
895{
896 u8 prog;
897 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
898 if (prog & 5) {
899 prog &= ~5;
900 pdev->class &= ~5;
901 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
368c73d4 902 /* PCI layer will sort out resources */
1da177e4
LT		 903 }
904}
368c73d4 905DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide );
1da177e4
LT		 906
907/*
908 * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
909 */
910static void __init quirk_ide_samemode(struct pci_dev *pdev)
911{
912 u8 prog;
913
914 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
915
916 if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
917 printk(KERN_INFO "PCI: IDE mode mismatch; forcing legacy mode\n");
918 prog &= ~5;
919 pdev->class &= ~5;
920 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
1da177e4
LT		 921 }
922}
368c73d4 923DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
1da177e4
LT		 924
925/* This was originally an Alpha specific thing, but it really fits here.
926 * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
927 */
928static void __init quirk_eisa_bridge(struct pci_dev *dev)
929{
930 dev->class = PCI_CLASS_BRIDGE_EISA << 8;
931}
932DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge );
933
7daa0c4f 934
1da177e4
LT		 935/*
936 * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
937 * is not activated. The myth is that Asus said that they do not want the
938 * users to be irritated by just another PCI Device in the Win98 device
939 * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
940 * package 2.7.0 for details)
941 *
942 * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
943 * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
d7698edc 944 * becomes necessary to do this tweak in two steps -- the chosen trigger
945 * is either the Host bridge (preferred) or on-board VGA controller.
9208ee82
JD		 946 *
947 * Note that we used to unhide the SMBus that way on Toshiba laptops
948 * (Satellite A40 and Tecra M2) but then found that the thermal management
949 * was done by SMM code, which could cause unsynchronized concurrent
950 * accesses to the SMBus registers, with potentially bad effects. Thus you
951 * should be very careful when adding new entries: if SMM is accessing the
952 * Intel SMBus, this is a very good reason to leave it hidden.
1da177e4 953 */
9d24a81e 954static int asus_hides_smbus;
1da177e4
LT		 955
956static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
957{
958 if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
959 if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
960 switch(dev->subsystem_device) {
a00db371 961 case 0x8025: /* P4B-LX */
1da177e4
LT		 962 case 0x8070: /* P4B */
963 case 0x8088: /* P4B533 */
964 case 0x1626: /* L3C notebook */
965 asus_hides_smbus = 1;
966 }
2f2d39d2 967 else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
1da177e4
LT		 968 switch(dev->subsystem_device) {
969 case 0x80b1: /* P4GE-V */
970 case 0x80b2: /* P4PE */
971 case 0x8093: /* P4B533-V */
972 asus_hides_smbus = 1;
973 }
2f2d39d2 974 else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
1da177e4
LT		 975 switch(dev->subsystem_device) {
976 case 0x8030: /* P4T533 */
977 asus_hides_smbus = 1;
978 }
2f2d39d2 979 else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
1da177e4
LT		 980 switch (dev->subsystem_device) {
981 case 0x8070: /* P4G8X Deluxe */
982 asus_hides_smbus = 1;
983 }
2f2d39d2 984 else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
321311af
JD		 985 switch (dev->subsystem_device) {
986 case 0x80c9: /* PU-DLS */
987 asus_hides_smbus = 1;
988 }
2f2d39d2 989 else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
1da177e4
LT		 990 switch (dev->subsystem_device) {
991 case 0x1751: /* M2N notebook */
992 case 0x1821: /* M5N notebook */
993 asus_hides_smbus = 1;
994 }
2f2d39d2 995 else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1da177e4
LT		 996 switch (dev->subsystem_device) {
997 case 0x184b: /* W1N notebook */
998 case 0x186a: /* M6Ne notebook */
999 asus_hides_smbus = 1;
1000 }
2f2d39d2 1001 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
2e45785c
JD		 1002 switch (dev->subsystem_device) {
1003 case 0x80f2: /* P4P800-X */
1004 asus_hides_smbus = 1;
1005 }
2f2d39d2 1006 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
acc06632
RM		 1007 switch (dev->subsystem_device) {
1008 case 0x1882: /* M6V notebook */
2d1e1c75 1009 case 0x1977: /* A6VA notebook */
acc06632
RM		 1010 asus_hides_smbus = 1;
1011 }
1da177e4
LT		 1012 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
1013 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1014 switch(dev->subsystem_device) {
1015 case 0x088C: /* HP Compaq nc8000 */
1016 case 0x0890: /* HP Compaq nc6000 */
1017 asus_hides_smbus = 1;
1018 }
2f2d39d2 1019 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
1da177e4
LT		 1020 switch (dev->subsystem_device) {
1021 case 0x12bc: /* HP D330L */
e3b1bd57 1022 case 0x12bd: /* HP D530 */
1da177e4
LT		 1023 asus_hides_smbus = 1;
1024 }
2f2d39d2 1025 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
3c0a654e 1026 switch (dev->subsystem_device) {
1027 case 0x099c: /* HP Compaq nx6110 */
1028 asus_hides_smbus = 1;
1029 }
1da177e4
LT		 1030 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
1031 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1032 switch(dev->subsystem_device) {
1033 case 0xC00C: /* Samsung P35 notebook */
1034 asus_hides_smbus = 1;
1035 }
c87f883e
RIZ		 1036 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
1037 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1038 switch(dev->subsystem_device) {
1039 case 0x0058: /* Compaq Evo N620c */
1040 asus_hides_smbus = 1;
1041 }
d7698edc 1042 else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
1043 switch(dev->subsystem_device) {
1044 case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
1045 /* Motherboard doesn't have Host bridge
1046 * subvendor/subdevice IDs, therefore checking
1047 * its on-board VGA controller */
1048 asus_hides_smbus = 1;
1049 }
1da177e4
LT		 1050 }
1051}
1052DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge );
1053DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge );
1054DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge );
1055DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge );
1056DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge );
321311af 1057DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge );
1da177e4
LT		 1058DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge );
1059DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge );
acc06632 1060DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge );
1da177e4 1061
d7698edc 1062DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge );
1063
1597cacb 1064static void asus_hides_smbus_lpc(struct pci_dev *dev)
1da177e4
LT		 1065{
1066 u16 val;
1067
1068 if (likely(!asus_hides_smbus))
1069 return;
1070
1071 pci_read_config_word(dev, 0xF2, &val);
1072 if (val & 0x8) {
1073 pci_write_config_word(dev, 0xF2, val & (~0x8));
1074 pci_read_config_word(dev, 0xF2, &val);
1075 if (val & 0x8)
1076 printk(KERN_INFO "PCI: i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
1077 else
1078 printk(KERN_INFO "PCI: Enabled i801 SMBus device\n");
1079 }
1080}
d7698edc 1081DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc );
1da177e4
LT		 1082DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc );
1083DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc );
321311af 1084DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc );
1da177e4
LT		 1085DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc );
1086DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc );
1087DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc );
d7698edc 1088DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc );
1597cacb
AC		 1089DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc );
1090DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc );
1091DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc );
1092DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc );
1093DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc );
1094DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc );
1095
1096static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
acc06632
RM		 1097{
1098 u32 val, rcba;
1099 void __iomem *base;
1100
1101 if (likely(!asus_hides_smbus))
1102 return;
1103 pci_read_config_dword(dev, 0xF0, &rcba);
1104 base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); /* use bits 31:14, 16 kB aligned */
1105 if (base == NULL) return;
1106 val=readl(base + 0x3418); /* read the Function Disable register, dword mode only */
1107 writel(val & 0xFFFFFFF7, base + 0x3418); /* enable the SMBus device */
1108 iounmap(base);
1109 printk(KERN_INFO "PCI: Enabled ICH6/i801 SMBus device\n");
1110}
1111DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6 );
1597cacb 1112DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6 );
ce007ea5 1113
1da177e4
LT		 1114/*
1115 * SiS 96x south bridge: BIOS typically hides SMBus device...
1116 */
1597cacb 1117static void quirk_sis_96x_smbus(struct pci_dev *dev)
1da177e4
LT		 1118{
1119 u8 val = 0;
1da177e4 1120 pci_read_config_byte(dev, 0x77, &val);
2f5c33b3
MH		 1121 if (val & 0x10) {
1122 printk(KERN_INFO "Enabling SiS 96x SMBus.\n");
1123 pci_write_config_byte(dev, 0x77, val & ~0x10);
1124 }
1da177e4 1125}
c30ca1db
AB		 1126DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus );
1127DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus );
1128DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus );
1129DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus );
1130DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus );
1131DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus );
1132DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus );
1133DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus );
1da177e4 1134
1da177e4
LT		 1135/*
1136 * ... This is further complicated by the fact that some SiS96x south
1137 * bridges pretend to be 85C503/5513 instead. In that case see if we
1138 * spotted a compatible north bridge to make sure.
1139 * (pci_find_device doesn't work yet)
1140 *
1141 * We can also enable the sis96x bit in the discovery register..
1142 */
1da177e4
LT		 1143#define SIS_DETECT_REGISTER 0x40
1144
1597cacb 1145static void quirk_sis_503(struct pci_dev *dev)
1da177e4
LT		 1146{
1147 u8 reg;
1148 u16 devid;
1149
1150 pci_read_config_byte(dev, SIS_DETECT_REGISTER, &reg);
1151 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
1152 pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
1153 if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
1154 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
1155 return;
1156 }
1157
1da177e4 1158 /*
2f5c33b3
MH		 1159 * Ok, it now shows up as a 96x.. run the 96x quirk by
1160 * hand in case it has already been processed.
1161 * (depends on link order, which is apparently not guaranteed)
1da177e4
LT		 1162 */
1163 dev->device = devid;
2f5c33b3 1164 quirk_sis_96x_smbus(dev);
1da177e4 1165}
c30ca1db
AB		 1166DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 );
1167DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 );
1da177e4 1168
1da177e4 1169
e5548e96
BJD		 1170/*
1171 * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
1172 * and MC97 modem controller are disabled when a second PCI soundcard is
1173 * present. This patch, tweaking the VT8237 ISA bridge, enables them.
1174 * -- bjd
1175 */
1597cacb 1176static void asus_hides_ac97_lpc(struct pci_dev *dev)
e5548e96
BJD		 1177{
1178 u8 val;
1179 int asus_hides_ac97 = 0;
1180
1181 if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1182 if (dev->device == PCI_DEVICE_ID_VIA_8237)
1183 asus_hides_ac97 = 1;
1184 }
1185
1186 if (!asus_hides_ac97)
1187 return;
1188
1189 pci_read_config_byte(dev, 0x50, &val);
1190 if (val & 0xc0) {
1191 pci_write_config_byte(dev, 0x50, val & (~0xc0));
1192 pci_read_config_byte(dev, 0x50, &val);
1193 if (val & 0xc0)
1194 printk(KERN_INFO "PCI: onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
1195 else
1196 printk(KERN_INFO "PCI: enabled onboard AC97/MC97 devices\n");
1197 }
1198}
1199DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc );
1597cacb
AC		 1200DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc );
1201
77967052 1202#if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
15e0c694
AC		 1203
1204/*
1205 * If we are using libata we can drive this chip properly but must
1206 * do this early on to make the additional device appear during
1207 * the PCI scanning.
1208 */
5ee2ae7f 1209static void quirk_jmicron_ata(struct pci_dev *pdev)
15e0c694 1210{
e34bb370 1211 u32 conf1, conf5, class;
15e0c694
AC		 1212 u8 hdr;
1213
1214 /* Only poke fn 0 */
1215 if (PCI_FUNC(pdev->devfn))
1216 return;
1217
5ee2ae7f
TH		 1218 pci_read_config_dword(pdev, 0x40, &conf1);
1219 pci_read_config_dword(pdev, 0x80, &conf5);
15e0c694 1220
5ee2ae7f
TH		 1221 conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
1222 conf5 &= ~(1 << 24); /* Clear bit 24 */
1223
1224 switch (pdev->device) {
1225 case PCI_DEVICE_ID_JMICRON_JMB360:
1226 /* The controller should be in single function ahci mode */
1227 conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
1228 break;
1229
1230 case PCI_DEVICE_ID_JMICRON_JMB365:
1231 case PCI_DEVICE_ID_JMICRON_JMB366:
1232 /* Redirect IDE second PATA port to the right spot */
1233 conf5 |= (1 << 24);
1234 /* Fall through */
1235 case PCI_DEVICE_ID_JMICRON_JMB361:
1236 case PCI_DEVICE_ID_JMICRON_JMB363:
1237 /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
1238 /* Set the class codes correctly and then direct IDE 0 */
3a9e3a51 1239 conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
5ee2ae7f
TH		 1240 break;
1241
1242 case PCI_DEVICE_ID_JMICRON_JMB368:
1243 /* The controller should be in single function IDE mode */
1244 conf1 |= 0x00C00000; /* Set 22, 23 */
1245 break;
15e0c694 1246 }
5ee2ae7f
TH		 1247
1248 pci_write_config_dword(pdev, 0x40, conf1);
1249 pci_write_config_dword(pdev, 0x80, conf5);
1250
1251 /* Update pdev accordingly */
1252 pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
1253 pdev->hdr_type = hdr & 0x7f;
1254 pdev->multifunction = !!(hdr & 0x80);
e34bb370
TH		 1255
1256 pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
1257 pdev->class = class >> 8;
15e0c694 1258}
5ee2ae7f
TH		 1259DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1260DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1261DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1262DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1263DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1264DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1265DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1266DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1267DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1268DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1269DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1270DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
15e0c694
AC		 1271
1272#endif
1273
1da177e4
LT		 1274#ifdef CONFIG_X86_IO_APIC
1275static void __init quirk_alder_ioapic(struct pci_dev *pdev)
1276{
1277 int i;
1278
1279 if ((pdev->class >> 8) != 0xff00)
1280 return;
1281
1282 /* the first BAR is the location of the IO APIC...we must
1283 * not touch this (and it's already covered by the fixmap), so
1284 * forcibly insert it into the resource tree */
1285 if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
1286 insert_resource(&iomem_resource, &pdev->resource[0]);
1287
1288 /* The next five BARs all seem to be rubbish, so just clean
1289 * them out */
1290 for (i=1; i < 6; i++) {
1291 memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
1292 }
1293
1294}
1295DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic );
1296#endif
1297
1da177e4 1298int pcie_mch_quirk;
c30ca1db 1299EXPORT_SYMBOL(pcie_mch_quirk);
1da177e4
LT		 1300
1301static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
1302{
1303 pcie_mch_quirk = 1;
1304}
1305DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch );
1306DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch );
1307DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch );
1308
4602b88d
KA		 1309
1310/*
1311 * It's possible for the MSI to get corrupted if shpc and acpi
1312 * are used together on certain PXH-based systems.
1313 */
1314static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
1315{
f5f2b131
EB		 1316 pci_msi_off(dev);
1317
4602b88d
KA		 1318 dev->no_msi = 1;
1319
1320 printk(KERN_WARNING "PCI: PXH quirk detected, "
1321 "disabling MSI for SHPC device\n");
1322}
1323DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
1324DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
1325DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
1326DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
1327DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
1328
ffadcc2f
KCA		 1329/*
1330 * Some Intel PCI Express chipsets have trouble with downstream
1331 * device power management.
1332 */
1333static void quirk_intel_pcie_pm(struct pci_dev * dev)
1334{
1335 pci_pm_d3_delay = 120;
1336 dev->no_d1d2 = 1;
1337}
1338
1339DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
1340DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
1341DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
1342DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
1343DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
1344DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
1345DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
1346DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
1347DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
1348DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
1349DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
1350DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
1351DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
1352DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
1353DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
1354DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
1355DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
1356DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
1357DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
1358DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
1359DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
4602b88d 1360
33dced2e
SS		 1361/*
1362 * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
1363 * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
1364 * Re-allocate the region if needed...
1365 */
1366static void __init quirk_tc86c001_ide(struct pci_dev *dev)
1367{
1368 struct resource *r = &dev->resource[0];
1369
1370 if (r->start & 0x8) {
1371 r->start = 0;
1372 r->end = 0xf;
1373 }
1374}
1375DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
1376 PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
1377 quirk_tc86c001_ide);
1378
1da177e4
LT		 1379static void __devinit quirk_netmos(struct pci_dev *dev)
1380{
1381 unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
1382 unsigned int num_serial = dev->subsystem_device & 0xf;
1383
1384 /*
1385 * These Netmos parts are multiport serial devices with optional
1386 * parallel ports. Even when parallel ports are present, they
1387 * are identified as class SERIAL, which means the serial driver
1388 * will claim them. To prevent this, mark them as class OTHER.
1389 * These combo devices should be claimed by parport_serial.
1390 *
1391 * The subdevice ID is of the form 0x00PS, where <P> is the number
1392 * of parallel ports and <S> is the number of serial ports.
1393 */
1394 switch (dev->device) {
1395 case PCI_DEVICE_ID_NETMOS_9735:
1396 case PCI_DEVICE_ID_NETMOS_9745:
1397 case PCI_DEVICE_ID_NETMOS_9835:
1398 case PCI_DEVICE_ID_NETMOS_9845:
1399 case PCI_DEVICE_ID_NETMOS_9855:
1400 if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
1401 num_parallel) {
1402 printk(KERN_INFO "PCI: Netmos %04x (%u parallel, "
1403 "%u serial); changing class SERIAL to OTHER "
1404 "(use parport_serial)\n",
1405 dev->device, num_parallel, num_serial);
1406 dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
1407 (dev->class & 0xff);
1408 }
1409 }
1410}
1411DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
1412
16a74744
BH		 1413static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
1414{
1415 u16 command;
16a74744
BH		 1416 u8 __iomem *csr;
1417 u8 cmd_hi;
1418
1419 switch (dev->device) {
1420 /* PCI IDs taken from drivers/net/e100.c */
1421 case 0x1029:
1422 case 0x1030 ... 0x1034:
1423 case 0x1038 ... 0x103E:
1424 case 0x1050 ... 0x1057:
1425 case 0x1059:
1426 case 0x1064 ... 0x106B:
1427 case 0x1091 ... 0x1095:
1428 case 0x1209:
1429 case 0x1229:
1430 case 0x2449:
1431 case 0x2459:
1432 case 0x245D:
1433 case 0x27DC:
1434 break;
1435 default:
1436 return;
1437 }
1438
1439 /*
1440 * Some firmware hands off the e100 with interrupts enabled,
1441 * which can cause a flood of interrupts if packets are
1442 * received before the driver attaches to the device. So
1443 * disable all e100 interrupts here. The driver will
1444 * re-enable them when it's ready.
1445 */
1446 pci_read_config_word(dev, PCI_COMMAND, &command);
16a74744 1447
1bef7dc0 1448 if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
16a74744
BH		 1449 return;
1450
1bef7dc0
BH		 1451 /* Convert from PCI bus to resource space. */
1452 csr = ioremap(pci_resource_start(dev, 0), 8);
16a74744
BH		 1453 if (!csr) {
1454 printk(KERN_WARNING "PCI: Can't map %s e100 registers\n",
1455 pci_name(dev));
1456 return;
1457 }
1458
1459 cmd_hi = readb(csr + 3);
1460 if (cmd_hi == 0) {
1461 printk(KERN_WARNING "PCI: Firmware left %s e100 interrupts "
1462 "enabled, disabling\n", pci_name(dev));
1463 writeb(1, csr + 3);
1464 }
1465
1466 iounmap(csr);
1467}
4e68fc97 1468DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
a5312e28
IK		 1469
1470static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
1471{
1472 /* rev 1 ncr53c810 chips don't set the class at all which means
1473 * they don't get their resources remapped. Fix that here.
1474 */
1475
1476 if (dev->class == PCI_CLASS_NOT_DEFINED) {
1477 printk(KERN_INFO "NCR 53c810 rev 1 detected, setting PCI class.\n");
1478 dev->class = PCI_CLASS_STORAGE_SCSI;
1479 }
1480}
1481DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
1482
1da177e4
LT		 1483static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end)
1484{
1485 while (f < end) {
1486 if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
1487 (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
1488 pr_debug("PCI: Calling quirk %p for %s\n", f->hook, pci_name(dev));
1489 f->hook(dev);
1490 }
1491 f++;
1492 }
1493}
1494
1495extern struct pci_fixup __start_pci_fixups_early[];
1496extern struct pci_fixup __end_pci_fixups_early[];
1497extern struct pci_fixup __start_pci_fixups_header[];
1498extern struct pci_fixup __end_pci_fixups_header[];
1499extern struct pci_fixup __start_pci_fixups_final[];
1500extern struct pci_fixup __end_pci_fixups_final[];
1501extern struct pci_fixup __start_pci_fixups_enable[];
1502extern struct pci_fixup __end_pci_fixups_enable[];
1597cacb
AC		 1503extern struct pci_fixup __start_pci_fixups_resume[];
1504extern struct pci_fixup __end_pci_fixups_resume[];
1da177e4
LT		 1505
1506
1507void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
1508{
1509 struct pci_fixup *start, *end;
1510
1511 switch(pass) {
1512 case pci_fixup_early:
1513 start = __start_pci_fixups_early;
1514 end = __end_pci_fixups_early;
1515 break;
1516
1517 case pci_fixup_header:
1518 start = __start_pci_fixups_header;
1519 end = __end_pci_fixups_header;
1520 break;
1521
1522 case pci_fixup_final:
1523 start = __start_pci_fixups_final;
1524 end = __end_pci_fixups_final;
1525 break;
1526
1527 case pci_fixup_enable:
1528 start = __start_pci_fixups_enable;
1529 end = __end_pci_fixups_enable;
1530 break;
1531
1597cacb
AC		 1532 case pci_fixup_resume:
1533 start = __start_pci_fixups_resume;
1534 end = __end_pci_fixups_resume;
1535 break;
1536
1da177e4
LT		 1537 default:
1538 /* stupid compiler warning, you would think with an enum... */
1539 return;
1540 }
1541 pci_do_fixups(dev, start, end);
1542}
c30ca1db 1543EXPORT_SYMBOL(pci_fixup_device);
1da177e4 1544
9d265124
DY		 1545/* Enable 1k I/O space granularity on the Intel P64H2 */
1546static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
1547{
1548 u16 en1k;
1549 u8 io_base_lo, io_limit_lo;
1550 unsigned long base, limit;
1551 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1552
1553 pci_read_config_word(dev, 0x40, &en1k);
1554
1555 if (en1k & 0x200) {
1556 printk(KERN_INFO "PCI: Enable I/O Space to 1 KB Granularity\n");
1557
1558 pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
1559 pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
1560 base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1561 limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1562
1563 if (base <= limit) {
1564 res->start = base;
1565 res->end = limit + 0x3ff;
1566 }
1567 }
1568}
1569DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
1570
15a260d5
DY		 1571/* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
1572 * The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
1573 * in drivers/pci/setup-bus.c
1574 */
1575static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
1576{
1577 u16 en1k, iobl_adr, iobl_adr_1k;
1578 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1579
1580 pci_read_config_word(dev, 0x40, &en1k);
1581
1582 if (en1k & 0x200) {
1583 pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
1584
1585 iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
1586
1587 if (iobl_adr != iobl_adr_1k) {
1588 printk(KERN_INFO "PCI: Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1 KB Granularity\n",
1589 iobl_adr,iobl_adr_1k);
1590 pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
1591 }
1592 }
1593}
1594DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
1595
cf34a8e0
BG		 1596/* Under some circumstances, AER is not linked with extended capabilities.
1597 * Force it to be linked by setting the corresponding control bit in the
1598 * config space.
1599 */
1597cacb 1600static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
cf34a8e0
BG		 1601{
1602 uint8_t b;
1603 if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
1604 if (!(b & 0x20)) {
1605 pci_write_config_byte(dev, 0xf41, b | 0x20);
1606 printk(KERN_INFO
1607 "PCI: Linking AER extended capability on %s\n",
1608 pci_name(dev));
1609 }
1610 }
1611}
1612DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1613 quirk_nvidia_ck804_pcie_aer_ext_cap);
1597cacb
AC		 1614DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1615 quirk_nvidia_ck804_pcie_aer_ext_cap);
cf34a8e0 1616
3f79e107 1617#ifdef CONFIG_PCI_MSI
ebdf7d39
TH		 1618/* Some chipsets do not support MSI. We cannot easily rely on setting
1619 * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
1620 * some other busses controlled by the chipset even if Linux is not
1621 * aware of it. Instead of setting the flag on all busses in the
1622 * machine, simply disable MSI globally.
3f79e107 1623 */
ebdf7d39 1624static void __init quirk_disable_all_msi(struct pci_dev *dev)
3f79e107 1625{
88187dfa
ME		 1626 pci_no_msi();
1627 printk(KERN_WARNING "PCI: MSI quirk detected. MSI deactivated.\n");
3f79e107 1628}
ebdf7d39
TH		 1629DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
1630DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
1631DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
184b812f 1632DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
3f79e107
BG		 1633
1634/* Disable MSI on chipsets that are known to not support it */
1635static void __devinit quirk_disable_msi(struct pci_dev *dev)
1636{
1637 if (dev->subordinate) {
1638 printk(KERN_WARNING "PCI: MSI quirk detected. "
1639 "PCI_BUS_FLAGS_NO_MSI set for %s subordinate bus.\n",
1640 pci_name(dev));
1641 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1642 }
1643}
1644DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
6397c75c
BG		 1645
1646/* Go through the list of Hypertransport capabilities and
1647 * return 1 if a HT MSI capability is found and enabled */
1648static int __devinit msi_ht_cap_enabled(struct pci_dev *dev)
1649{
7a380507
ME		 1650 int pos, ttl = 48;
1651
1652 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
1653 while (pos && ttl--) {
1654 u8 flags;
1655
1656 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
1657 &flags) == 0)
1658 {
1659 printk(KERN_INFO "PCI: Found %s HT MSI Mapping on %s\n",
1660 flags & HT_MSI_FLAGS_ENABLE ?
1661 "enabled" : "disabled", pci_name(dev));
1662 return (flags & HT_MSI_FLAGS_ENABLE) != 0;
6397c75c 1663 }
7a380507
ME		 1664
1665 pos = pci_find_next_ht_capability(dev, pos,
1666 HT_CAPTYPE_MSI_MAPPING);
6397c75c
BG		 1667 }
1668 return 0;
1669}
1670
1671/* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
1672static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
1673{
1674 if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
1675 printk(KERN_WARNING "PCI: MSI quirk detected. "
1676 "MSI disabled on chipset %s.\n",
1677 pci_name(dev));
1678 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1679 }
1680}
1681DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
1682 quirk_msi_ht_cap);
1d84b542
DM		 1683DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS,
1684 PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
1685 quirk_msi_ht_cap);
6397c75c
BG		 1686
1687/* The nVidia CK804 chipset may have 2 HT MSI mappings.
1688 * MSI are supported if the MSI capability set in any of these mappings.
1689 */
1690static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
1691{
1692 struct pci_dev *pdev;
1693
1694 if (!dev->subordinate)
1695 return;
1696
1697 /* check HT MSI cap on this chipset and the root one.
1698 * a single one having MSI is enough to be sure that MSI are supported.
1699 */
11f242f0 1700 pdev = pci_get_slot(dev->bus, 0);
9ac0ce85
JJ		 1701 if (!pdev)
1702 return;
0c875c28 1703 if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
6397c75c
BG		 1704 printk(KERN_WARNING "PCI: MSI quirk detected. "
1705 "MSI disabled on chipset %s.\n",
1706 pci_name(dev));
1707 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1708 }
11f242f0 1709 pci_dev_put(pdev);
6397c75c
BG		 1710}
1711DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1712 quirk_nvidia_ck804_msi_ht_cap);
ba698ad4
DM		 1713
1714static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
1715{
1716 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
1717}
1718DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
1719 PCI_DEVICE_ID_TIGON3_5780,
1720 quirk_msi_intx_disable_bug);
1721DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
1722 PCI_DEVICE_ID_TIGON3_5780S,
1723 quirk_msi_intx_disable_bug);
1724DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
1725 PCI_DEVICE_ID_TIGON3_5714,
1726 quirk_msi_intx_disable_bug);
1727DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
1728 PCI_DEVICE_ID_TIGON3_5714S,
1729 quirk_msi_intx_disable_bug);
1730DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
1731 PCI_DEVICE_ID_TIGON3_5715,
1732 quirk_msi_intx_disable_bug);
1733DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
1734 PCI_DEVICE_ID_TIGON3_5715S,
1735 quirk_msi_intx_disable_bug);
1736
bc38b411
DM		 1737DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
1738 quirk_msi_intx_disable_bug);
1739DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
1740 quirk_msi_intx_disable_bug);
1741DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
1742 quirk_msi_intx_disable_bug);
1743DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
1744 quirk_msi_intx_disable_bug);
1745DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
1746 quirk_msi_intx_disable_bug);
1747DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4395,
1748 quirk_msi_intx_disable_bug);
1749
1750DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
1751 quirk_msi_intx_disable_bug);
1752DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
1753 quirk_msi_intx_disable_bug);
1754DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
1755 quirk_msi_intx_disable_bug);
1756
3f79e107 1757#endif /* CONFIG_PCI_MSI */
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