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.
6 * Note: any quirks for hotpluggable devices must _NOT_ be declared __init.
8 * Copyright (c) 1999 Martin Mares <mj@ucw.cz>
10 * Init/reset quirks for USB host controllers should be in the
11 * USB quirks file, where their drivers can access reuse it.
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).
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>
23 #include <linux/acpi.h>
24 #include <linux/kallsyms.h>
25 #include <linux/dmi.h>
26 #include <linux/pci-aspm.h>
27 #include <linux/ioport.h>
30 int isa_dma_bridge_buggy;
31 EXPORT_SYMBOL(isa_dma_bridge_buggy);
33 EXPORT_SYMBOL(pci_pci_problems);
35 #ifdef CONFIG_PCI_QUIRKS
37 * This quirk function disables memory decoding and releases memory resources
38 * of the device specified by kernel's boot parameter 'pci=resource_alignment='.
39 * It also rounds up size to specified alignment.
40 * Later on, the kernel will assign page-aligned memory resource back
43 static void __devinit quirk_resource_alignment(struct pci_dev *dev)
47 resource_size_t align, size;
50 if (!pci_is_reassigndev(dev))
53 if (dev->hdr_type == PCI_HEADER_TYPE_NORMAL &&
54 (dev->class >> 8) == PCI_CLASS_BRIDGE_HOST) {
56 "Can't reassign resources to host bridge.\n");
61 "Disabling memory decoding and releasing memory resources.\n");
62 pci_read_config_word(dev, PCI_COMMAND, &command);
63 command &= ~PCI_COMMAND_MEMORY;
64 pci_write_config_word(dev, PCI_COMMAND, command);
66 align = pci_specified_resource_alignment(dev);
67 for (i=0; i < PCI_BRIDGE_RESOURCES; i++) {
68 r = &dev->resource[i];
69 if (!(r->flags & IORESOURCE_MEM))
71 size = resource_size(r);
75 "Rounding up size of resource #%d to %#llx.\n",
76 i, (unsigned long long)size);
81 /* Need to disable bridge's resource window,
82 * to enable the kernel to reassign new resource
85 if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE &&
86 (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
87 for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
88 r = &dev->resource[i];
89 if (!(r->flags & IORESOURCE_MEM))
91 r->end = resource_size(r) - 1;
94 pci_disable_bridge_window(dev);
97 DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, quirk_resource_alignment);
99 /* The Mellanox Tavor device gives false positive parity errors
100 * Mark this device with a broken_parity_status, to allow
101 * PCI scanning code to "skip" this now blacklisted device.
103 static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
105 dev->broken_parity_status = 1; /* This device gives false positives */
107 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
108 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
110 /* Deal with broken BIOS'es that neglect to enable passive release,
111 which can cause problems in combination with the 82441FX/PPro MTRRs */
112 static void quirk_passive_release(struct pci_dev *dev)
114 struct pci_dev *d = NULL;
117 /* We have to make sure a particular bit is set in the PIIX3
118 ISA bridge, so we have to go out and find it. */
119 while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
120 pci_read_config_byte(d, 0x82, &dlc);
122 dev_info(&d->dev, "PIIX3: Enabling Passive Release\n");
124 pci_write_config_byte(d, 0x82, dlc);
128 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
129 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
131 /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
132 but VIA don't answer queries. If you happen to have good contacts at VIA
133 ask them for me please -- Alan
135 This appears to be BIOS not version dependent. So presumably there is a
138 static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
140 if (!isa_dma_bridge_buggy) {
141 isa_dma_bridge_buggy=1;
142 dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n");
146 * Its not totally clear which chipsets are the problematic ones
147 * We know 82C586 and 82C596 variants are affected.
149 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs);
150 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs);
151 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs);
152 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs);
153 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs);
154 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs);
155 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs);
158 * Intel NM10 "TigerPoint" LPC PM1a_STS.BM_STS must be clear
159 * for some HT machines to use C4 w/o hanging.
161 static void __devinit quirk_tigerpoint_bm_sts(struct pci_dev *dev)
166 pci_read_config_dword(dev, 0x40, &pmbase);
167 pmbase = pmbase & 0xff80;
171 dev_info(&dev->dev, FW_BUG "TigerPoint LPC.BM_STS cleared\n");
175 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGP_LPC, quirk_tigerpoint_bm_sts);
178 * Chipsets where PCI->PCI transfers vanish or hang
180 static void __devinit quirk_nopcipci(struct pci_dev *dev)
182 if ((pci_pci_problems & PCIPCI_FAIL)==0) {
183 dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n");
184 pci_pci_problems |= PCIPCI_FAIL;
187 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci);
188 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci);
190 static void __devinit quirk_nopciamd(struct pci_dev *dev)
193 pci_read_config_byte(dev, 0x08, &rev);
196 dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n");
197 pci_pci_problems |= PCIAGP_FAIL;
200 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
203 * Triton requires workarounds to be used by the drivers
205 static void __devinit quirk_triton(struct pci_dev *dev)
207 if ((pci_pci_problems&PCIPCI_TRITON)==0) {
208 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
209 pci_pci_problems |= PCIPCI_TRITON;
212 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton);
213 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton);
214 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton);
215 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton);
218 * VIA Apollo KT133 needs PCI latency patch
219 * Made according to a windows driver based patch by George E. Breese
220 * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
221 * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
222 * the info on which Mr Breese based his work.
224 * Updated based on further information from the site and also on
225 * information provided by VIA
227 static void quirk_vialatency(struct pci_dev *dev)
231 /* Ok we have a potential problem chipset here. Now see if we have
232 a buggy southbridge */
234 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
236 /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
237 /* Check for buggy part revisions */
238 if (p->revision < 0x40 || p->revision > 0x42)
241 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
242 if (p==NULL) /* No problem parts */
244 /* Check for buggy part revisions */
245 if (p->revision < 0x10 || p->revision > 0x12)
250 * Ok we have the problem. Now set the PCI master grant to
251 * occur every master grant. The apparent bug is that under high
252 * PCI load (quite common in Linux of course) you can get data
253 * loss when the CPU is held off the bus for 3 bus master requests
254 * This happens to include the IDE controllers....
256 * VIA only apply this fix when an SB Live! is present but under
257 * both Linux and Windows this isnt enough, and we have seen
258 * corruption without SB Live! but with things like 3 UDMA IDE
259 * controllers. So we ignore that bit of the VIA recommendation..
262 pci_read_config_byte(dev, 0x76, &busarb);
263 /* Set bit 4 and bi 5 of byte 76 to 0x01
264 "Master priority rotation on every PCI master grant */
267 pci_write_config_byte(dev, 0x76, busarb);
268 dev_info(&dev->dev, "Applying VIA southbridge workaround\n");
272 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
273 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
274 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
275 /* Must restore this on a resume from RAM */
276 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
277 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
278 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
281 * VIA Apollo VP3 needs ETBF on BT848/878
283 static void __devinit quirk_viaetbf(struct pci_dev *dev)
285 if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
286 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
287 pci_pci_problems |= PCIPCI_VIAETBF;
290 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf);
292 static void __devinit quirk_vsfx(struct pci_dev *dev)
294 if ((pci_pci_problems&PCIPCI_VSFX)==0) {
295 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
296 pci_pci_problems |= PCIPCI_VSFX;
299 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx);
302 * Ali Magik requires workarounds to be used by the drivers
303 * that DMA to AGP space. Latency must be set to 0xA and triton
304 * workaround applied too
305 * [Info kindly provided by ALi]
307 static void __init quirk_alimagik(struct pci_dev *dev)
309 if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
310 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
311 pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
314 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik);
315 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik);
318 * Natoma has some interesting boundary conditions with Zoran stuff
321 static void __devinit quirk_natoma(struct pci_dev *dev)
323 if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
324 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
325 pci_pci_problems |= PCIPCI_NATOMA;
328 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma);
329 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma);
330 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma);
331 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma);
332 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma);
333 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma);
336 * This chip can cause PCI parity errors if config register 0xA0 is read
337 * while DMAs are occurring.
339 static void __devinit quirk_citrine(struct pci_dev *dev)
341 dev->cfg_size = 0xA0;
343 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine);
346 * S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
347 * If it's needed, re-allocate the region.
349 static void __devinit quirk_s3_64M(struct pci_dev *dev)
351 struct resource *r = &dev->resource[0];
353 if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
358 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M);
359 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M);
361 static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
362 unsigned size, int nr, const char *name)
366 struct pci_bus_region bus_region;
367 struct resource *res = dev->resource + nr;
369 res->name = pci_name(dev);
371 res->end = region + size - 1;
372 res->flags = IORESOURCE_IO;
374 /* Convert from PCI bus to resource space. */
375 bus_region.start = res->start;
376 bus_region.end = res->end;
377 pcibios_bus_to_resource(dev, res, &bus_region);
379 pci_claim_resource(dev, nr);
380 dev_info(&dev->dev, "quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
385 * ATI Northbridge setups MCE the processor if you even
386 * read somewhere between 0x3b0->0x3bb or read 0x3d3
388 static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
390 dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
391 /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
392 request_region(0x3b0, 0x0C, "RadeonIGP");
393 request_region(0x3d3, 0x01, "RadeonIGP");
395 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce);
398 * Let's make the southbridge information explicit instead
399 * of having to worry about people probing the ACPI areas,
400 * for example.. (Yes, it happens, and if you read the wrong
401 * ACPI register it will put the machine to sleep with no
402 * way of waking it up again. Bummer).
404 * ALI M7101: Two IO regions pointed to by words at
405 * 0xE0 (64 bytes of ACPI registers)
406 * 0xE2 (32 bytes of SMB registers)
408 static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
412 pci_read_config_word(dev, 0xE0, ®ion);
413 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
414 pci_read_config_word(dev, 0xE2, ®ion);
415 quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
417 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi);
419 static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
422 u32 mask, size, base;
424 pci_read_config_dword(dev, port, &devres);
425 if ((devres & enable) != enable)
427 mask = (devres >> 16) & 15;
428 base = devres & 0xffff;
431 unsigned bit = size >> 1;
432 if ((bit & mask) == bit)
437 * For now we only print it out. Eventually we'll want to
438 * reserve it (at least if it's in the 0x1000+ range), but
439 * let's get enough confirmation reports first.
442 dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
445 static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
448 u32 mask, size, base;
450 pci_read_config_dword(dev, port, &devres);
451 if ((devres & enable) != enable)
453 base = devres & 0xffff0000;
454 mask = (devres & 0x3f) << 16;
457 unsigned bit = size >> 1;
458 if ((bit & mask) == bit)
463 * For now we only print it out. Eventually we'll want to
464 * reserve it, but let's get enough confirmation reports first.
467 dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
471 * PIIX4 ACPI: Two IO regions pointed to by longwords at
472 * 0x40 (64 bytes of ACPI registers)
473 * 0x90 (16 bytes of SMB registers)
474 * and a few strange programmable PIIX4 device resources.
476 static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
480 pci_read_config_dword(dev, 0x40, ®ion);
481 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
482 pci_read_config_dword(dev, 0x90, ®ion);
483 quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
485 /* Device resource A has enables for some of the other ones */
486 pci_read_config_dword(dev, 0x5c, &res_a);
488 piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
489 piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
491 /* Device resource D is just bitfields for static resources */
493 /* Device 12 enabled? */
494 if (res_a & (1 << 29)) {
495 piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
496 piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
498 /* Device 13 enabled? */
499 if (res_a & (1 << 30)) {
500 piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
501 piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
503 piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
504 piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
506 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi);
507 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi);
509 #define ICH_PMBASE 0x40
510 #define ICH_ACPI_CNTL 0x44
511 #define ICH4_ACPI_EN 0x10
512 #define ICH6_ACPI_EN 0x80
513 #define ICH4_GPIOBASE 0x58
514 #define ICH4_GPIO_CNTL 0x5c
515 #define ICH4_GPIO_EN 0x10
516 #define ICH6_GPIOBASE 0x48
517 #define ICH6_GPIO_CNTL 0x4c
518 #define ICH6_GPIO_EN 0x10
521 * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
522 * 0x40 (128 bytes of ACPI, GPIO & TCO registers)
523 * 0x58 (64 bytes of GPIO I/O space)
525 static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
530 pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
531 if (enable & ICH4_ACPI_EN) {
532 pci_read_config_dword(dev, ICH_PMBASE, ®ion);
533 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES,
534 "ICH4 ACPI/GPIO/TCO");
537 pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable);
538 if (enable & ICH4_GPIO_EN) {
539 pci_read_config_dword(dev, ICH4_GPIOBASE, ®ion);
540 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES + 1,
544 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi);
545 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi);
546 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi);
547 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi);
548 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi);
549 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi);
550 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi);
551 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi);
552 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
553 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
555 static void __devinit ich6_lpc_acpi_gpio(struct pci_dev *dev)
560 pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
561 if (enable & ICH6_ACPI_EN) {
562 pci_read_config_dword(dev, ICH_PMBASE, ®ion);
563 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES,
564 "ICH6 ACPI/GPIO/TCO");
567 pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable);
568 if (enable & ICH4_GPIO_EN) {
569 pci_read_config_dword(dev, ICH6_GPIOBASE, ®ion);
570 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES + 1,
575 static void __devinit ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize)
580 pci_read_config_dword(dev, reg, &val);
588 * This is not correct. It is 16, 32 or 64 bytes depending on
589 * register D31:F0:ADh bits 5:4.
591 * But this gets us at least _part_ of it.
599 /* Just print it out for now. We should reserve it after more debugging */
600 dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base+size-1);
603 static void __devinit quirk_ich6_lpc(struct pci_dev *dev)
605 /* Shared ACPI/GPIO decode with all ICH6+ */
606 ich6_lpc_acpi_gpio(dev);
608 /* ICH6-specific generic IO decode */
609 ich6_lpc_generic_decode(dev, 0x84, "LPC Generic IO decode 1", 0);
610 ich6_lpc_generic_decode(dev, 0x88, "LPC Generic IO decode 2", 1);
612 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc);
613 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc);
615 static void __devinit ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name)
620 pci_read_config_dword(dev, reg, &val);
627 * IO base in bits 15:2, mask in bits 23:18, both
631 mask = (val >> 16) & 0xfc;
634 /* Just print it out for now. We should reserve it after more debugging */
635 dev_info(&dev->dev, "%s PIO at %04x (mask %04x)\n", name, base, mask);
638 /* ICH7-10 has the same common LPC generic IO decode registers */
639 static void __devinit quirk_ich7_lpc(struct pci_dev *dev)
641 /* We share the common ACPI/DPIO decode with ICH6 */
642 ich6_lpc_acpi_gpio(dev);
644 /* And have 4 ICH7+ generic decodes */
645 ich7_lpc_generic_decode(dev, 0x84, "ICH7 LPC Generic IO decode 1");
646 ich7_lpc_generic_decode(dev, 0x88, "ICH7 LPC Generic IO decode 2");
647 ich7_lpc_generic_decode(dev, 0x8c, "ICH7 LPC Generic IO decode 3");
648 ich7_lpc_generic_decode(dev, 0x90, "ICH7 LPC Generic IO decode 4");
650 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich7_lpc);
651 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich7_lpc);
652 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich7_lpc);
653 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich7_lpc);
654 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich7_lpc);
655 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich7_lpc);
656 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich7_lpc);
657 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich7_lpc);
658 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich7_lpc);
659 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich7_lpc);
660 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich7_lpc);
661 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich7_lpc);
662 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1, quirk_ich7_lpc);
665 * VIA ACPI: One IO region pointed to by longword at
666 * 0x48 or 0x20 (256 bytes of ACPI registers)
668 static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
672 if (dev->revision & 0x10) {
673 pci_read_config_dword(dev, 0x48, ®ion);
674 region &= PCI_BASE_ADDRESS_IO_MASK;
675 quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
678 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi);
681 * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
682 * 0x48 (256 bytes of ACPI registers)
683 * 0x70 (128 bytes of hardware monitoring register)
684 * 0x90 (16 bytes of SMB registers)
686 static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
691 quirk_vt82c586_acpi(dev);
693 pci_read_config_word(dev, 0x70, &hm);
694 hm &= PCI_BASE_ADDRESS_IO_MASK;
695 quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
697 pci_read_config_dword(dev, 0x90, &smb);
698 smb &= PCI_BASE_ADDRESS_IO_MASK;
699 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
701 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi);
704 * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
705 * 0x88 (128 bytes of power management registers)
706 * 0xd0 (16 bytes of SMB registers)
708 static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
712 pci_read_config_word(dev, 0x88, &pm);
713 pm &= PCI_BASE_ADDRESS_IO_MASK;
714 quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
716 pci_read_config_word(dev, 0xd0, &smb);
717 smb &= PCI_BASE_ADDRESS_IO_MASK;
718 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
720 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
723 * TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back:
724 * Disable fast back-to-back on the secondary bus segment
726 static void __devinit quirk_xio2000a(struct pci_dev *dev)
728 struct pci_dev *pdev;
731 dev_warn(&dev->dev, "TI XIO2000a quirk detected; "
732 "secondary bus fast back-to-back transfers disabled\n");
733 list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) {
734 pci_read_config_word(pdev, PCI_COMMAND, &command);
735 if (command & PCI_COMMAND_FAST_BACK)
736 pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK);
739 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A,
742 #ifdef CONFIG_X86_IO_APIC
744 #include <asm/io_apic.h>
747 * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
748 * devices to the external APIC.
750 * TODO: When we have device-specific interrupt routers,
751 * this code will go away from quirks.
753 static void quirk_via_ioapic(struct pci_dev *dev)
758 tmp = 0; /* nothing routed to external APIC */
760 tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
762 dev_info(&dev->dev, "%sbling VIA external APIC routing\n",
763 tmp == 0 ? "Disa" : "Ena");
765 /* Offset 0x58: External APIC IRQ output control */
766 pci_write_config_byte (dev, 0x58, tmp);
768 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
769 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
772 * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
773 * This leads to doubled level interrupt rates.
774 * Set this bit to get rid of cycle wastage.
775 * Otherwise uncritical.
777 static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
780 #define BYPASS_APIC_DEASSERT 8
782 pci_read_config_byte(dev, 0x5B, &misc_control2);
783 if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
784 dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
785 pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
788 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
789 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
792 * The AMD io apic can hang the box when an apic irq is masked.
793 * We check all revs >= B0 (yet not in the pre production!) as the bug
794 * is currently marked NoFix
796 * We have multiple reports of hangs with this chipset that went away with
797 * noapic specified. For the moment we assume it's the erratum. We may be wrong
798 * of course. However the advice is demonstrably good even if so..
800 static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
802 if (dev->revision >= 0x02) {
803 dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
804 dev_warn(&dev->dev, " : booting with the \"noapic\" option\n");
807 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
809 static void __init quirk_ioapic_rmw(struct pci_dev *dev)
811 if (dev->devfn == 0 && dev->bus->number == 0)
814 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw);
815 #endif /* CONFIG_X86_IO_APIC */
818 * Some settings of MMRBC can lead to data corruption so block changes.
819 * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
821 static void __init quirk_amd_8131_mmrbc(struct pci_dev *dev)
823 if (dev->subordinate && dev->revision <= 0x12) {
824 dev_info(&dev->dev, "AMD8131 rev %x detected; "
825 "disabling PCI-X MMRBC\n", dev->revision);
826 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
829 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
832 * FIXME: it is questionable that quirk_via_acpi
833 * is needed. It shows up as an ISA bridge, and does not
834 * support the PCI_INTERRUPT_LINE register at all. Therefore
835 * it seems like setting the pci_dev's 'irq' to the
836 * value of the ACPI SCI interrupt is only done for convenience.
839 static void __devinit quirk_via_acpi(struct pci_dev *d)
842 * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
845 pci_read_config_byte(d, 0x42, &irq);
847 if (irq && (irq != 2))
850 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi);
851 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi);
855 * VIA bridges which have VLink
858 static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
860 static void quirk_via_bridge(struct pci_dev *dev)
862 /* See what bridge we have and find the device ranges */
863 switch (dev->device) {
864 case PCI_DEVICE_ID_VIA_82C686:
865 /* The VT82C686 is special, it attaches to PCI and can have
866 any device number. All its subdevices are functions of
867 that single device. */
868 via_vlink_dev_lo = PCI_SLOT(dev->devfn);
869 via_vlink_dev_hi = PCI_SLOT(dev->devfn);
871 case PCI_DEVICE_ID_VIA_8237:
872 case PCI_DEVICE_ID_VIA_8237A:
873 via_vlink_dev_lo = 15;
875 case PCI_DEVICE_ID_VIA_8235:
876 via_vlink_dev_lo = 16;
878 case PCI_DEVICE_ID_VIA_8231:
879 case PCI_DEVICE_ID_VIA_8233_0:
880 case PCI_DEVICE_ID_VIA_8233A:
881 case PCI_DEVICE_ID_VIA_8233C_0:
882 via_vlink_dev_lo = 17;
886 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
887 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
888 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
889 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
890 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
891 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
892 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
893 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
896 * quirk_via_vlink - VIA VLink IRQ number update
899 * If the device we are dealing with is on a PIC IRQ we need to
900 * ensure that the IRQ line register which usually is not relevant
901 * for PCI cards, is actually written so that interrupts get sent
902 * to the right place.
903 * We only do this on systems where a VIA south bridge was detected,
904 * and only for VIA devices on the motherboard (see quirk_via_bridge
908 static void quirk_via_vlink(struct pci_dev *dev)
912 /* Check if we have VLink at all */
913 if (via_vlink_dev_lo == -1)
918 /* Don't quirk interrupts outside the legacy IRQ range */
919 if (!new_irq || new_irq > 15)
922 /* Internal device ? */
923 if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
924 PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
927 /* This is an internal VLink device on a PIC interrupt. The BIOS
928 ought to have set this but may not have, so we redo it */
930 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
931 if (new_irq != irq) {
932 dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n",
934 udelay(15); /* unknown if delay really needed */
935 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
938 DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
941 * VIA VT82C598 has its device ID settable and many BIOSes
942 * set it to the ID of VT82C597 for backward compatibility.
943 * We need to switch it off to be able to recognize the real
946 static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
948 pci_write_config_byte(dev, 0xfc, 0);
949 pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
951 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id);
954 * CardBus controllers have a legacy base address that enables them
955 * to respond as i82365 pcmcia controllers. We don't want them to
956 * do this even if the Linux CardBus driver is not loaded, because
957 * the Linux i82365 driver does not (and should not) handle CardBus.
959 static void quirk_cardbus_legacy(struct pci_dev *dev)
961 if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
963 pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
965 DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
966 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
969 * Following the PCI ordering rules is optional on the AMD762. I'm not
970 * sure what the designers were smoking but let's not inhale...
972 * To be fair to AMD, it follows the spec by default, its BIOS people
975 static void quirk_amd_ordering(struct pci_dev *dev)
978 pci_read_config_dword(dev, 0x4C, &pcic);
981 dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n");
982 pci_write_config_dword(dev, 0x4C, pcic);
983 pci_read_config_dword(dev, 0x84, &pcic);
984 pcic |= (1<<23); /* Required in this mode */
985 pci_write_config_dword(dev, 0x84, pcic);
988 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
989 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
992 * DreamWorks provided workaround for Dunord I-3000 problem
994 * This card decodes and responds to addresses not apparently
995 * assigned to it. We force a larger allocation to ensure that
996 * nothing gets put too close to it.
998 static void __devinit quirk_dunord ( struct pci_dev * dev )
1000 struct resource *r = &dev->resource [1];
1004 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord);
1007 * i82380FB mobile docking controller: its PCI-to-PCI bridge
1008 * is subtractive decoding (transparent), and does indicate this
1009 * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
1012 static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
1014 dev->transparent = 1;
1016 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge);
1017 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge);
1020 * Common misconfiguration of the MediaGX/Geode PCI master that will
1021 * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
1022 * datasheets found at http://www.national.com/ds/GX for info on what
1023 * these bits do. <christer@weinigel.se>
1025 static void quirk_mediagx_master(struct pci_dev *dev)
1028 pci_read_config_byte(dev, 0x41, ®);
1031 dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
1032 pci_write_config_byte(dev, 0x41, reg);
1035 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
1036 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
1039 * Ensure C0 rev restreaming is off. This is normally done by
1040 * the BIOS but in the odd case it is not the results are corruption
1041 * hence the presence of a Linux check
1043 static void quirk_disable_pxb(struct pci_dev *pdev)
1047 if (pdev->revision != 0x04) /* Only C0 requires this */
1049 pci_read_config_word(pdev, 0x40, &config);
1050 if (config & (1<<6)) {
1052 pci_write_config_word(pdev, 0x40, config);
1053 dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n");
1056 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
1057 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
1059 static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
1061 /* set SBX00/Hudson-2 SATA in IDE mode to AHCI mode */
1064 pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
1066 pci_read_config_byte(pdev, 0x40, &tmp);
1067 pci_write_config_byte(pdev, 0x40, tmp|1);
1068 pci_write_config_byte(pdev, 0x9, 1);
1069 pci_write_config_byte(pdev, 0xa, 6);
1070 pci_write_config_byte(pdev, 0x40, tmp);
1072 pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
1073 dev_info(&pdev->dev, "set SATA to AHCI mode\n");
1076 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
1077 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
1078 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
1079 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
1080 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
1081 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
1084 * Serverworks CSB5 IDE does not fully support native mode
1086 static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
1089 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
1093 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
1094 /* PCI layer will sort out resources */
1097 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
1100 * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
1102 static void __init quirk_ide_samemode(struct pci_dev *pdev)
1106 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
1108 if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
1109 dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n");
1112 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
1115 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
1118 * Some ATA devices break if put into D3
1121 static void __devinit quirk_no_ata_d3(struct pci_dev *pdev)
1123 /* Quirk the legacy ATA devices only. The AHCI ones are ok */
1124 if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE)
1125 pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
1127 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, quirk_no_ata_d3);
1128 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_no_ata_d3);
1129 /* ALi loses some register settings that we cannot then restore */
1130 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, quirk_no_ata_d3);
1131 /* VIA comes back fine but we need to keep it alive or ACPI GTM failures
1132 occur when mode detecting */
1133 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_no_ata_d3);
1135 /* This was originally an Alpha specific thing, but it really fits here.
1136 * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
1138 static void __init quirk_eisa_bridge(struct pci_dev *dev)
1140 dev->class = PCI_CLASS_BRIDGE_EISA << 8;
1142 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge);
1146 * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
1147 * is not activated. The myth is that Asus said that they do not want the
1148 * users to be irritated by just another PCI Device in the Win98 device
1149 * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
1150 * package 2.7.0 for details)
1152 * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
1153 * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
1154 * becomes necessary to do this tweak in two steps -- the chosen trigger
1155 * is either the Host bridge (preferred) or on-board VGA controller.
1157 * Note that we used to unhide the SMBus that way on Toshiba laptops
1158 * (Satellite A40 and Tecra M2) but then found that the thermal management
1159 * was done by SMM code, which could cause unsynchronized concurrent
1160 * accesses to the SMBus registers, with potentially bad effects. Thus you
1161 * should be very careful when adding new entries: if SMM is accessing the
1162 * Intel SMBus, this is a very good reason to leave it hidden.
1164 * Likewise, many recent laptops use ACPI for thermal management. If the
1165 * ACPI DSDT code accesses the SMBus, then Linux should not access it
1166 * natively, and keeping the SMBus hidden is the right thing to do. If you
1167 * are about to add an entry in the table below, please first disassemble
1168 * the DSDT and double-check that there is no code accessing the SMBus.
1170 static int asus_hides_smbus;
1172 static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
1174 if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1175 if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
1176 switch(dev->subsystem_device) {
1177 case 0x8025: /* P4B-LX */
1178 case 0x8070: /* P4B */
1179 case 0x8088: /* P4B533 */
1180 case 0x1626: /* L3C notebook */
1181 asus_hides_smbus = 1;
1183 else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
1184 switch(dev->subsystem_device) {
1185 case 0x80b1: /* P4GE-V */
1186 case 0x80b2: /* P4PE */
1187 case 0x8093: /* P4B533-V */
1188 asus_hides_smbus = 1;
1190 else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
1191 switch(dev->subsystem_device) {
1192 case 0x8030: /* P4T533 */
1193 asus_hides_smbus = 1;
1195 else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
1196 switch (dev->subsystem_device) {
1197 case 0x8070: /* P4G8X Deluxe */
1198 asus_hides_smbus = 1;
1200 else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
1201 switch (dev->subsystem_device) {
1202 case 0x80c9: /* PU-DLS */
1203 asus_hides_smbus = 1;
1205 else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
1206 switch (dev->subsystem_device) {
1207 case 0x1751: /* M2N notebook */
1208 case 0x1821: /* M5N notebook */
1209 case 0x1897: /* A6L notebook */
1210 asus_hides_smbus = 1;
1212 else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1213 switch (dev->subsystem_device) {
1214 case 0x184b: /* W1N notebook */
1215 case 0x186a: /* M6Ne notebook */
1216 asus_hides_smbus = 1;
1218 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
1219 switch (dev->subsystem_device) {
1220 case 0x80f2: /* P4P800-X */
1221 asus_hides_smbus = 1;
1223 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
1224 switch (dev->subsystem_device) {
1225 case 0x1882: /* M6V notebook */
1226 case 0x1977: /* A6VA notebook */
1227 asus_hides_smbus = 1;
1229 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
1230 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1231 switch(dev->subsystem_device) {
1232 case 0x088C: /* HP Compaq nc8000 */
1233 case 0x0890: /* HP Compaq nc6000 */
1234 asus_hides_smbus = 1;
1236 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
1237 switch (dev->subsystem_device) {
1238 case 0x12bc: /* HP D330L */
1239 case 0x12bd: /* HP D530 */
1240 case 0x006a: /* HP Compaq nx9500 */
1241 asus_hides_smbus = 1;
1243 else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
1244 switch (dev->subsystem_device) {
1245 case 0x12bf: /* HP xw4100 */
1246 asus_hides_smbus = 1;
1248 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
1249 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1250 switch(dev->subsystem_device) {
1251 case 0xC00C: /* Samsung P35 notebook */
1252 asus_hides_smbus = 1;
1254 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
1255 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1256 switch(dev->subsystem_device) {
1257 case 0x0058: /* Compaq Evo N620c */
1258 asus_hides_smbus = 1;
1260 else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
1261 switch(dev->subsystem_device) {
1262 case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
1263 /* Motherboard doesn't have Host bridge
1264 * subvendor/subdevice IDs, therefore checking
1265 * its on-board VGA controller */
1266 asus_hides_smbus = 1;
1268 else if (dev->device == PCI_DEVICE_ID_INTEL_82801DB_2)
1269 switch(dev->subsystem_device) {
1270 case 0x00b8: /* Compaq Evo D510 CMT */
1271 case 0x00b9: /* Compaq Evo D510 SFF */
1272 case 0x00ba: /* Compaq Evo D510 USDT */
1273 /* Motherboard doesn't have Host bridge
1274 * subvendor/subdevice IDs and on-board VGA
1275 * controller is disabled if an AGP card is
1276 * inserted, therefore checking USB UHCI
1278 asus_hides_smbus = 1;
1280 else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC)
1281 switch (dev->subsystem_device) {
1282 case 0x001A: /* Compaq Deskpro EN SSF P667 815E */
1283 /* Motherboard doesn't have host bridge
1284 * subvendor/subdevice IDs, therefore checking
1285 * its on-board VGA controller */
1286 asus_hides_smbus = 1;
1290 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge);
1291 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge);
1292 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge);
1293 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge);
1294 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge);
1295 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge);
1296 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge);
1297 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge);
1298 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge);
1299 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
1301 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge);
1302 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_2, asus_hides_smbus_hostbridge);
1303 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge);
1305 static void asus_hides_smbus_lpc(struct pci_dev *dev)
1309 if (likely(!asus_hides_smbus))
1312 pci_read_config_word(dev, 0xF2, &val);
1314 pci_write_config_word(dev, 0xF2, val & (~0x8));
1315 pci_read_config_word(dev, 0xF2, &val);
1317 dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
1319 dev_info(&dev->dev, "Enabled i801 SMBus device\n");
1322 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1323 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1324 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1325 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1326 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1327 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1328 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
1329 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1330 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1331 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1332 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1333 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1334 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1335 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
1337 /* It appears we just have one such device. If not, we have a warning */
1338 static void __iomem *asus_rcba_base;
1339 static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev)
1343 if (likely(!asus_hides_smbus))
1345 WARN_ON(asus_rcba_base);
1347 pci_read_config_dword(dev, 0xF0, &rcba);
1348 /* use bits 31:14, 16 kB aligned */
1349 asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000);
1350 if (asus_rcba_base == NULL)
1354 static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev)
1358 if (likely(!asus_hides_smbus || !asus_rcba_base))
1360 /* read the Function Disable register, dword mode only */
1361 val = readl(asus_rcba_base + 0x3418);
1362 writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */
1365 static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev)
1367 if (likely(!asus_hides_smbus || !asus_rcba_base))
1369 iounmap(asus_rcba_base);
1370 asus_rcba_base = NULL;
1371 dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n");
1374 static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
1376 asus_hides_smbus_lpc_ich6_suspend(dev);
1377 asus_hides_smbus_lpc_ich6_resume_early(dev);
1378 asus_hides_smbus_lpc_ich6_resume(dev);
1380 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6);
1381 DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend);
1382 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume);
1383 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early);
1386 * SiS 96x south bridge: BIOS typically hides SMBus device...
1388 static void quirk_sis_96x_smbus(struct pci_dev *dev)
1391 pci_read_config_byte(dev, 0x77, &val);
1393 dev_info(&dev->dev, "Enabling SiS 96x SMBus\n");
1394 pci_write_config_byte(dev, 0x77, val & ~0x10);
1397 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1398 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1399 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1400 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
1401 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1402 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1403 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1404 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
1407 * ... This is further complicated by the fact that some SiS96x south
1408 * bridges pretend to be 85C503/5513 instead. In that case see if we
1409 * spotted a compatible north bridge to make sure.
1410 * (pci_find_device doesn't work yet)
1412 * We can also enable the sis96x bit in the discovery register..
1414 #define SIS_DETECT_REGISTER 0x40
1416 static void quirk_sis_503(struct pci_dev *dev)
1421 pci_read_config_byte(dev, SIS_DETECT_REGISTER, ®);
1422 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
1423 pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
1424 if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
1425 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
1430 * Ok, it now shows up as a 96x.. run the 96x quirk by
1431 * hand in case it has already been processed.
1432 * (depends on link order, which is apparently not guaranteed)
1434 dev->device = devid;
1435 quirk_sis_96x_smbus(dev);
1437 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
1438 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
1442 * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
1443 * and MC97 modem controller are disabled when a second PCI soundcard is
1444 * present. This patch, tweaking the VT8237 ISA bridge, enables them.
1447 static void asus_hides_ac97_lpc(struct pci_dev *dev)
1450 int asus_hides_ac97 = 0;
1452 if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1453 if (dev->device == PCI_DEVICE_ID_VIA_8237)
1454 asus_hides_ac97 = 1;
1457 if (!asus_hides_ac97)
1460 pci_read_config_byte(dev, 0x50, &val);
1462 pci_write_config_byte(dev, 0x50, val & (~0xc0));
1463 pci_read_config_byte(dev, 0x50, &val);
1465 dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
1467 dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n");
1470 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
1471 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
1473 #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
1476 * If we are using libata we can drive this chip properly but must
1477 * do this early on to make the additional device appear during
1480 static void quirk_jmicron_ata(struct pci_dev *pdev)
1482 u32 conf1, conf5, class;
1485 /* Only poke fn 0 */
1486 if (PCI_FUNC(pdev->devfn))
1489 pci_read_config_dword(pdev, 0x40, &conf1);
1490 pci_read_config_dword(pdev, 0x80, &conf5);
1492 conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
1493 conf5 &= ~(1 << 24); /* Clear bit 24 */
1495 switch (pdev->device) {
1496 case PCI_DEVICE_ID_JMICRON_JMB360: /* SATA single port */
1497 case PCI_DEVICE_ID_JMICRON_JMB362: /* SATA dual ports */
1498 /* The controller should be in single function ahci mode */
1499 conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
1502 case PCI_DEVICE_ID_JMICRON_JMB365:
1503 case PCI_DEVICE_ID_JMICRON_JMB366:
1504 /* Redirect IDE second PATA port to the right spot */
1507 case PCI_DEVICE_ID_JMICRON_JMB361:
1508 case PCI_DEVICE_ID_JMICRON_JMB363:
1509 /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
1510 /* Set the class codes correctly and then direct IDE 0 */
1511 conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
1514 case PCI_DEVICE_ID_JMICRON_JMB368:
1515 /* The controller should be in single function IDE mode */
1516 conf1 |= 0x00C00000; /* Set 22, 23 */
1520 pci_write_config_dword(pdev, 0x40, conf1);
1521 pci_write_config_dword(pdev, 0x80, conf5);
1523 /* Update pdev accordingly */
1524 pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
1525 pdev->hdr_type = hdr & 0x7f;
1526 pdev->multifunction = !!(hdr & 0x80);
1528 pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
1529 pdev->class = class >> 8;
1531 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1532 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1533 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
1534 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1535 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1536 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1537 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1538 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1539 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1540 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
1541 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1542 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1543 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1544 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1548 #ifdef CONFIG_X86_IO_APIC
1549 static void __init quirk_alder_ioapic(struct pci_dev *pdev)
1553 if ((pdev->class >> 8) != 0xff00)
1556 /* the first BAR is the location of the IO APIC...we must
1557 * not touch this (and it's already covered by the fixmap), so
1558 * forcibly insert it into the resource tree */
1559 if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
1560 insert_resource(&iomem_resource, &pdev->resource[0]);
1562 /* The next five BARs all seem to be rubbish, so just clean
1564 for (i=1; i < 6; i++) {
1565 memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
1569 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
1572 static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
1577 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
1578 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
1579 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
1583 * It's possible for the MSI to get corrupted if shpc and acpi
1584 * are used together on certain PXH-based systems.
1586 static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
1590 dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n");
1592 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
1593 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
1594 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
1595 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
1596 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
1599 * Some Intel PCI Express chipsets have trouble with downstream
1600 * device power management.
1602 static void quirk_intel_pcie_pm(struct pci_dev * dev)
1604 pci_pm_d3_delay = 120;
1608 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
1609 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
1610 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
1611 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
1612 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
1613 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
1614 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
1615 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
1616 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
1617 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
1618 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
1619 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
1620 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
1621 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
1622 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
1623 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
1624 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
1625 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
1626 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
1627 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
1628 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
1630 #ifdef CONFIG_X86_IO_APIC
1632 * Boot interrupts on some chipsets cannot be turned off. For these chipsets,
1633 * remap the original interrupt in the linux kernel to the boot interrupt, so
1634 * that a PCI device's interrupt handler is installed on the boot interrupt
1637 static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev)
1639 if (noioapicquirk || noioapicreroute)
1642 dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT;
1643 dev_info(&dev->dev, "rerouting interrupts for [%04x:%04x]\n",
1644 dev->vendor, dev->device);
1646 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1647 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1648 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1649 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1650 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1651 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1652 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1653 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
1654 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1655 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1656 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1657 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1658 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1659 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1660 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1661 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
1664 * On some chipsets we can disable the generation of legacy INTx boot
1669 * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no
1670 * 300641-004US, section 5.7.3.
1672 #define INTEL_6300_IOAPIC_ABAR 0x40
1673 #define INTEL_6300_DISABLE_BOOT_IRQ (1<<14)
1675 static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
1677 u16 pci_config_word;
1682 pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word);
1683 pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ;
1684 pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word);
1686 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1687 dev->vendor, dev->device);
1689 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
1690 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
1693 * disable boot interrupts on HT-1000
1695 #define BC_HT1000_FEATURE_REG 0x64
1696 #define BC_HT1000_PIC_REGS_ENABLE (1<<0)
1697 #define BC_HT1000_MAP_IDX 0xC00
1698 #define BC_HT1000_MAP_DATA 0xC01
1700 static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
1702 u32 pci_config_dword;
1708 pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
1709 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
1710 BC_HT1000_PIC_REGS_ENABLE);
1712 for (irq = 0x10; irq < 0x10 + 32; irq++) {
1713 outb(irq, BC_HT1000_MAP_IDX);
1714 outb(0x00, BC_HT1000_MAP_DATA);
1717 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
1719 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1720 dev->vendor, dev->device);
1722 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
1723 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
1726 * disable boot interrupts on AMD and ATI chipsets
1729 * NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131
1730 * rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode
1731 * (due to an erratum).
1733 #define AMD_813X_MISC 0x40
1734 #define AMD_813X_NOIOAMODE (1<<0)
1735 #define AMD_813X_REV_B2 0x13
1737 static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
1739 u32 pci_config_dword;
1743 if (dev->revision == AMD_813X_REV_B2)
1746 pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
1747 pci_config_dword &= ~AMD_813X_NOIOAMODE;
1748 pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword);
1750 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1751 dev->vendor, dev->device);
1753 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1754 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1756 #define AMD_8111_PCI_IRQ_ROUTING 0x56
1758 static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev)
1760 u16 pci_config_word;
1765 pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word);
1766 if (!pci_config_word) {
1767 dev_info(&dev->dev, "boot interrupts on device [%04x:%04x] "
1768 "already disabled\n", dev->vendor, dev->device);
1771 pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0);
1772 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1773 dev->vendor, dev->device);
1775 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
1776 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
1777 #endif /* CONFIG_X86_IO_APIC */
1780 * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
1781 * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
1782 * Re-allocate the region if needed...
1784 static void __init quirk_tc86c001_ide(struct pci_dev *dev)
1786 struct resource *r = &dev->resource[0];
1788 if (r->start & 0x8) {
1793 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
1794 PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
1795 quirk_tc86c001_ide);
1797 static void __devinit quirk_netmos(struct pci_dev *dev)
1799 unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
1800 unsigned int num_serial = dev->subsystem_device & 0xf;
1803 * These Netmos parts are multiport serial devices with optional
1804 * parallel ports. Even when parallel ports are present, they
1805 * are identified as class SERIAL, which means the serial driver
1806 * will claim them. To prevent this, mark them as class OTHER.
1807 * These combo devices should be claimed by parport_serial.
1809 * The subdevice ID is of the form 0x00PS, where <P> is the number
1810 * of parallel ports and <S> is the number of serial ports.
1812 switch (dev->device) {
1813 case PCI_DEVICE_ID_NETMOS_9835:
1814 /* Well, this rule doesn't hold for the following 9835 device */
1815 if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
1816 dev->subsystem_device == 0x0299)
1818 case PCI_DEVICE_ID_NETMOS_9735:
1819 case PCI_DEVICE_ID_NETMOS_9745:
1820 case PCI_DEVICE_ID_NETMOS_9845:
1821 case PCI_DEVICE_ID_NETMOS_9855:
1822 if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
1824 dev_info(&dev->dev, "Netmos %04x (%u parallel, "
1825 "%u serial); changing class SERIAL to OTHER "
1826 "(use parport_serial)\n",
1827 dev->device, num_parallel, num_serial);
1828 dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
1829 (dev->class & 0xff);
1833 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
1835 static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
1842 switch (dev->device) {
1843 /* PCI IDs taken from drivers/net/e100.c */
1845 case 0x1030 ... 0x1034:
1846 case 0x1038 ... 0x103E:
1847 case 0x1050 ... 0x1057:
1849 case 0x1064 ... 0x106B:
1850 case 0x1091 ... 0x1095:
1863 * Some firmware hands off the e100 with interrupts enabled,
1864 * which can cause a flood of interrupts if packets are
1865 * received before the driver attaches to the device. So
1866 * disable all e100 interrupts here. The driver will
1867 * re-enable them when it's ready.
1869 pci_read_config_word(dev, PCI_COMMAND, &command);
1871 if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
1875 * Check that the device is in the D0 power state. If it's not,
1876 * there is no point to look any further.
1878 pm = pci_find_capability(dev, PCI_CAP_ID_PM);
1880 pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
1881 if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
1885 /* Convert from PCI bus to resource space. */
1886 csr = ioremap(pci_resource_start(dev, 0), 8);
1888 dev_warn(&dev->dev, "Can't map e100 registers\n");
1892 cmd_hi = readb(csr + 3);
1894 dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; "
1901 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
1904 * The 82575 and 82598 may experience data corruption issues when transitioning
1905 * out of L0S. To prevent this we need to disable L0S on the pci-e link
1907 static void __devinit quirk_disable_aspm_l0s(struct pci_dev *dev)
1909 dev_info(&dev->dev, "Disabling L0s\n");
1910 pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
1912 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s);
1913 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s);
1914 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s);
1915 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s);
1916 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s);
1917 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s);
1918 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s);
1919 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s);
1920 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s);
1921 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s);
1922 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s);
1923 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
1924 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
1925 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
1927 static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
1929 /* rev 1 ncr53c810 chips don't set the class at all which means
1930 * they don't get their resources remapped. Fix that here.
1933 if (dev->class == PCI_CLASS_NOT_DEFINED) {
1934 dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n");
1935 dev->class = PCI_CLASS_STORAGE_SCSI;
1938 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
1940 /* Enable 1k I/O space granularity on the Intel P64H2 */
1941 static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
1944 u8 io_base_lo, io_limit_lo;
1945 unsigned long base, limit;
1946 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1948 pci_read_config_word(dev, 0x40, &en1k);
1951 dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n");
1953 pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
1954 pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
1955 base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1956 limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1958 if (base <= limit) {
1960 res->end = limit + 0x3ff;
1964 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
1966 /* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
1967 * The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
1968 * in drivers/pci/setup-bus.c
1970 static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
1972 u16 en1k, iobl_adr, iobl_adr_1k;
1973 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1975 pci_read_config_word(dev, 0x40, &en1k);
1978 pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
1980 iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
1982 if (iobl_adr != iobl_adr_1k) {
1983 dev_info(&dev->dev, "Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1KB granularity\n",
1984 iobl_adr,iobl_adr_1k);
1985 pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
1989 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
1991 /* Under some circumstances, AER is not linked with extended capabilities.
1992 * Force it to be linked by setting the corresponding control bit in the
1995 static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
1998 if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
2000 pci_write_config_byte(dev, 0xf41, b | 0x20);
2002 "Linking AER extended capability\n");
2006 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2007 quirk_nvidia_ck804_pcie_aer_ext_cap);
2008 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2009 quirk_nvidia_ck804_pcie_aer_ext_cap);
2011 static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
2014 * Disable PCI Bus Parking and PCI Master read caching on CX700
2015 * which causes unspecified timing errors with a VT6212L on the PCI
2016 * bus leading to USB2.0 packet loss. The defaults are that these
2017 * features are turned off but some BIOSes turn them on.
2021 if (pci_read_config_byte(dev, 0x76, &b) == 0) {
2023 /* Turn off PCI Bus Parking */
2024 pci_write_config_byte(dev, 0x76, b ^ 0x40);
2027 "Disabling VIA CX700 PCI parking\n");
2031 if (pci_read_config_byte(dev, 0x72, &b) == 0) {
2033 /* Turn off PCI Master read caching */
2034 pci_write_config_byte(dev, 0x72, 0x0);
2036 /* Set PCI Master Bus time-out to "1x16 PCLK" */
2037 pci_write_config_byte(dev, 0x75, 0x1);
2039 /* Disable "Read FIFO Timer" */
2040 pci_write_config_byte(dev, 0x77, 0x0);
2043 "Disabling VIA CX700 PCI caching\n");
2047 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
2050 * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
2051 * VPD end tag will hang the device. This problem was initially
2052 * observed when a vpd entry was created in sysfs
2053 * ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry
2054 * will dump 32k of data. Reading a full 32k will cause an access
2055 * beyond the VPD end tag causing the device to hang. Once the device
2056 * is hung, the bnx2 driver will not be able to reset the device.
2057 * We believe that it is legal to read beyond the end tag and
2058 * therefore the solution is to limit the read/write length.
2060 static void __devinit quirk_brcm_570x_limit_vpd(struct pci_dev *dev)
2063 * Only disable the VPD capability for 5706, 5706S, 5708,
2064 * 5708S and 5709 rev. A
2066 if ((dev->device == PCI_DEVICE_ID_NX2_5706) ||
2067 (dev->device == PCI_DEVICE_ID_NX2_5706S) ||
2068 (dev->device == PCI_DEVICE_ID_NX2_5708) ||
2069 (dev->device == PCI_DEVICE_ID_NX2_5708S) ||
2070 ((dev->device == PCI_DEVICE_ID_NX2_5709) &&
2071 (dev->revision & 0xf0) == 0x0)) {
2073 dev->vpd->len = 0x80;
2077 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2078 PCI_DEVICE_ID_NX2_5706,
2079 quirk_brcm_570x_limit_vpd);
2080 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2081 PCI_DEVICE_ID_NX2_5706S,
2082 quirk_brcm_570x_limit_vpd);
2083 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2084 PCI_DEVICE_ID_NX2_5708,
2085 quirk_brcm_570x_limit_vpd);
2086 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2087 PCI_DEVICE_ID_NX2_5708S,
2088 quirk_brcm_570x_limit_vpd);
2089 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2090 PCI_DEVICE_ID_NX2_5709,
2091 quirk_brcm_570x_limit_vpd);
2092 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2093 PCI_DEVICE_ID_NX2_5709S,
2094 quirk_brcm_570x_limit_vpd);
2096 /* Originally in EDAC sources for i82875P:
2097 * Intel tells BIOS developers to hide device 6 which
2098 * configures the overflow device access containing
2099 * the DRBs - this is where we expose device 6.
2100 * http://www.x86-secret.com/articles/tweak/pat/patsecrets-2.htm
2102 static void __devinit quirk_unhide_mch_dev6(struct pci_dev *dev)
2106 if (pci_read_config_byte(dev, 0xF4, ®) == 0 && !(reg & 0x02)) {
2107 dev_info(&dev->dev, "Enabling MCH 'Overflow' Device\n");
2108 pci_write_config_byte(dev, 0xF4, reg | 0x02);
2112 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB,
2113 quirk_unhide_mch_dev6);
2114 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB,
2115 quirk_unhide_mch_dev6);
2118 #ifdef CONFIG_PCI_MSI
2119 /* Some chipsets do not support MSI. We cannot easily rely on setting
2120 * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
2121 * some other busses controlled by the chipset even if Linux is not
2122 * aware of it. Instead of setting the flag on all busses in the
2123 * machine, simply disable MSI globally.
2125 static void __init quirk_disable_all_msi(struct pci_dev *dev)
2128 dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n");
2130 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
2131 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
2132 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
2133 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
2134 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
2135 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi);
2136 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi);
2138 /* Disable MSI on chipsets that are known to not support it */
2139 static void __devinit quirk_disable_msi(struct pci_dev *dev)
2141 if (dev->subordinate) {
2142 dev_warn(&dev->dev, "MSI quirk detected; "
2143 "subordinate MSI disabled\n");
2144 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2147 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
2148 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0xa238, quirk_disable_msi);
2149 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x5a3f, quirk_disable_msi);
2151 /* Go through the list of Hypertransport capabilities and
2152 * return 1 if a HT MSI capability is found and enabled */
2153 static int __devinit msi_ht_cap_enabled(struct pci_dev *dev)
2157 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2158 while (pos && ttl--) {
2161 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2164 dev_info(&dev->dev, "Found %s HT MSI Mapping\n",
2165 flags & HT_MSI_FLAGS_ENABLE ?
2166 "enabled" : "disabled");
2167 return (flags & HT_MSI_FLAGS_ENABLE) != 0;
2170 pos = pci_find_next_ht_capability(dev, pos,
2171 HT_CAPTYPE_MSI_MAPPING);
2176 /* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
2177 static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
2179 if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
2180 dev_warn(&dev->dev, "MSI quirk detected; "
2181 "subordinate MSI disabled\n");
2182 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2185 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
2188 /* The nVidia CK804 chipset may have 2 HT MSI mappings.
2189 * MSI are supported if the MSI capability set in any of these mappings.
2191 static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
2193 struct pci_dev *pdev;
2195 if (!dev->subordinate)
2198 /* check HT MSI cap on this chipset and the root one.
2199 * a single one having MSI is enough to be sure that MSI are supported.
2201 pdev = pci_get_slot(dev->bus, 0);
2204 if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
2205 dev_warn(&dev->dev, "MSI quirk detected; "
2206 "subordinate MSI disabled\n");
2207 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2211 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2212 quirk_nvidia_ck804_msi_ht_cap);
2214 /* Force enable MSI mapping capability on HT bridges */
2215 static void __devinit ht_enable_msi_mapping(struct pci_dev *dev)
2219 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2220 while (pos && ttl--) {
2223 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2225 dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
2227 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2228 flags | HT_MSI_FLAGS_ENABLE);
2230 pos = pci_find_next_ht_capability(dev, pos,
2231 HT_CAPTYPE_MSI_MAPPING);
2234 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
2235 PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
2236 ht_enable_msi_mapping);
2238 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
2239 ht_enable_msi_mapping);
2241 /* The P5N32-SLI motherboards from Asus have a problem with msi
2242 * for the MCP55 NIC. It is not yet determined whether the msi problem
2243 * also affects other devices. As for now, turn off msi for this device.
2245 static void __devinit nvenet_msi_disable(struct pci_dev *dev)
2247 if (dmi_name_in_vendors("P5N32-SLI PREMIUM") ||
2248 dmi_name_in_vendors("P5N32-E SLI")) {
2250 "Disabling msi for MCP55 NIC on P5N32-SLI\n");
2254 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2255 PCI_DEVICE_ID_NVIDIA_NVENET_15,
2256 nvenet_msi_disable);
2258 static int __devinit ht_check_msi_mapping(struct pci_dev *dev)
2263 /* check if there is HT MSI cap or enabled on this device */
2264 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2265 while (pos && ttl--) {
2270 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2272 if (flags & HT_MSI_FLAGS_ENABLE) {
2279 pos = pci_find_next_ht_capability(dev, pos,
2280 HT_CAPTYPE_MSI_MAPPING);
2286 static int __devinit host_bridge_with_leaf(struct pci_dev *host_bridge)
2288 struct pci_dev *dev;
2293 dev_no = host_bridge->devfn >> 3;
2294 for (i = dev_no + 1; i < 0x20; i++) {
2295 dev = pci_get_slot(host_bridge->bus, PCI_DEVFN(i, 0));
2299 /* found next host bridge ?*/
2300 pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
2306 if (ht_check_msi_mapping(dev)) {
2317 #define PCI_HT_CAP_SLAVE_CTRL0 4 /* link control */
2318 #define PCI_HT_CAP_SLAVE_CTRL1 8 /* link control to */
2320 static int __devinit is_end_of_ht_chain(struct pci_dev *dev)
2326 pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
2331 pci_read_config_word(dev, pos + PCI_CAP_FLAGS, &flags);
2333 ctrl_off = ((flags >> 10) & 1) ?
2334 PCI_HT_CAP_SLAVE_CTRL0 : PCI_HT_CAP_SLAVE_CTRL1;
2335 pci_read_config_word(dev, pos + ctrl_off, &ctrl);
2337 if (ctrl & (1 << 6))
2344 static void __devinit nv_ht_enable_msi_mapping(struct pci_dev *dev)
2346 struct pci_dev *host_bridge;
2351 dev_no = dev->devfn >> 3;
2352 for (i = dev_no; i >= 0; i--) {
2353 host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0));
2357 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
2362 pci_dev_put(host_bridge);
2368 /* don't enable end_device/host_bridge with leaf directly here */
2369 if (host_bridge == dev && is_end_of_ht_chain(host_bridge) &&
2370 host_bridge_with_leaf(host_bridge))
2373 /* root did that ! */
2374 if (msi_ht_cap_enabled(host_bridge))
2377 ht_enable_msi_mapping(dev);
2380 pci_dev_put(host_bridge);
2383 static void __devinit ht_disable_msi_mapping(struct pci_dev *dev)
2387 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2388 while (pos && ttl--) {
2391 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2393 dev_info(&dev->dev, "Disabling HT MSI Mapping\n");
2395 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2396 flags & ~HT_MSI_FLAGS_ENABLE);
2398 pos = pci_find_next_ht_capability(dev, pos,
2399 HT_CAPTYPE_MSI_MAPPING);
2403 static void __devinit __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all)
2405 struct pci_dev *host_bridge;
2409 if (!pci_msi_enabled())
2412 /* check if there is HT MSI cap or enabled on this device */
2413 found = ht_check_msi_mapping(dev);
2420 * HT MSI mapping should be disabled on devices that are below
2421 * a non-Hypertransport host bridge. Locate the host bridge...
2423 host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
2424 if (host_bridge == NULL) {
2426 "nv_msi_ht_cap_quirk didn't locate host bridge\n");
2430 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
2432 /* Host bridge is to HT */
2434 /* it is not enabled, try to enable it */
2436 ht_enable_msi_mapping(dev);
2438 nv_ht_enable_msi_mapping(dev);
2443 /* HT MSI is not enabled */
2447 /* Host bridge is not to HT, disable HT MSI mapping on this device */
2448 ht_disable_msi_mapping(dev);
2451 static void __devinit nv_msi_ht_cap_quirk_all(struct pci_dev *dev)
2453 return __nv_msi_ht_cap_quirk(dev, 1);
2456 static void __devinit nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev)
2458 return __nv_msi_ht_cap_quirk(dev, 0);
2461 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
2462 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
2464 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
2465 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
2467 static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
2469 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2471 static void __devinit quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
2475 /* SB700 MSI issue will be fixed at HW level from revision A21,
2476 * we need check PCI REVISION ID of SMBus controller to get SB700
2479 p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
2484 if ((p->revision < 0x3B) && (p->revision >= 0x30))
2485 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2488 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2489 PCI_DEVICE_ID_TIGON3_5780,
2490 quirk_msi_intx_disable_bug);
2491 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2492 PCI_DEVICE_ID_TIGON3_5780S,
2493 quirk_msi_intx_disable_bug);
2494 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2495 PCI_DEVICE_ID_TIGON3_5714,
2496 quirk_msi_intx_disable_bug);
2497 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2498 PCI_DEVICE_ID_TIGON3_5714S,
2499 quirk_msi_intx_disable_bug);
2500 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2501 PCI_DEVICE_ID_TIGON3_5715,
2502 quirk_msi_intx_disable_bug);
2503 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2504 PCI_DEVICE_ID_TIGON3_5715S,
2505 quirk_msi_intx_disable_bug);
2507 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
2508 quirk_msi_intx_disable_ati_bug);
2509 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
2510 quirk_msi_intx_disable_ati_bug);
2511 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
2512 quirk_msi_intx_disable_ati_bug);
2513 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
2514 quirk_msi_intx_disable_ati_bug);
2515 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
2516 quirk_msi_intx_disable_ati_bug);
2518 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
2519 quirk_msi_intx_disable_bug);
2520 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
2521 quirk_msi_intx_disable_bug);
2522 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
2523 quirk_msi_intx_disable_bug);
2525 #endif /* CONFIG_PCI_MSI */
2527 static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
2528 struct pci_fixup *end)
2531 if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
2532 (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
2533 dev_dbg(&dev->dev, "calling %pF\n", f->hook);
2540 extern struct pci_fixup __start_pci_fixups_early[];
2541 extern struct pci_fixup __end_pci_fixups_early[];
2542 extern struct pci_fixup __start_pci_fixups_header[];
2543 extern struct pci_fixup __end_pci_fixups_header[];
2544 extern struct pci_fixup __start_pci_fixups_final[];
2545 extern struct pci_fixup __end_pci_fixups_final[];
2546 extern struct pci_fixup __start_pci_fixups_enable[];
2547 extern struct pci_fixup __end_pci_fixups_enable[];
2548 extern struct pci_fixup __start_pci_fixups_resume[];
2549 extern struct pci_fixup __end_pci_fixups_resume[];
2550 extern struct pci_fixup __start_pci_fixups_resume_early[];
2551 extern struct pci_fixup __end_pci_fixups_resume_early[];
2552 extern struct pci_fixup __start_pci_fixups_suspend[];
2553 extern struct pci_fixup __end_pci_fixups_suspend[];
2555 #if defined(CONFIG_DMAR) || defined(CONFIG_INTR_REMAP)
2556 #define VTUNCERRMSK_REG 0x1ac
2557 #define VTD_MSK_SPEC_ERRORS (1 << 31)
2559 * This is a quirk for masking vt-d spec defined errors to platform error
2560 * handling logic. With out this, platforms using Intel 7500, 5500 chipsets
2561 * (and the derivative chipsets like X58 etc) seem to generate NMI/SMI (based
2562 * on the RAS config settings of the platform) when a vt-d fault happens.
2563 * The resulting SMI caused the system to hang.
2565 * VT-d spec related errors are already handled by the VT-d OS code, so no
2566 * need to report the same error through other channels.
2568 static void vtd_mask_spec_errors(struct pci_dev *dev)
2572 pci_read_config_dword(dev, VTUNCERRMSK_REG, &word);
2573 pci_write_config_dword(dev, VTUNCERRMSK_REG, word | VTD_MSK_SPEC_ERRORS);
2575 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors);
2576 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors);
2579 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
2581 struct pci_fixup *start, *end;
2584 case pci_fixup_early:
2585 start = __start_pci_fixups_early;
2586 end = __end_pci_fixups_early;
2589 case pci_fixup_header:
2590 start = __start_pci_fixups_header;
2591 end = __end_pci_fixups_header;
2594 case pci_fixup_final:
2595 start = __start_pci_fixups_final;
2596 end = __end_pci_fixups_final;
2599 case pci_fixup_enable:
2600 start = __start_pci_fixups_enable;
2601 end = __end_pci_fixups_enable;
2604 case pci_fixup_resume:
2605 start = __start_pci_fixups_resume;
2606 end = __end_pci_fixups_resume;
2609 case pci_fixup_resume_early:
2610 start = __start_pci_fixups_resume_early;
2611 end = __end_pci_fixups_resume_early;
2614 case pci_fixup_suspend:
2615 start = __start_pci_fixups_suspend;
2616 end = __end_pci_fixups_suspend;
2620 /* stupid compiler warning, you would think with an enum... */
2623 pci_do_fixups(dev, start, end);
2626 static int __init pci_apply_final_quirks(void)
2628 struct pci_dev *dev = NULL;
2630 while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
2631 pci_fixup_device(pci_fixup_final, dev);
2637 fs_initcall_sync(pci_apply_final_quirks);
2639 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) {}
2641 EXPORT_SYMBOL(pci_fixup_device);