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/export.h>
21 #include <linux/pci.h>
22 #include <linux/init.h>
23 #include <linux/delay.h>
24 #include <linux/acpi.h>
25 #include <linux/kallsyms.h>
26 #include <linux/dmi.h>
27 #include <linux/pci-aspm.h>
28 #include <linux/ioport.h>
29 #include <asm/dma.h> /* isa_dma_bridge_buggy */
33 * This quirk function disables memory decoding and releases memory resources
34 * of the device specified by kernel's boot parameter 'pci=resource_alignment='.
35 * It also rounds up size to specified alignment.
36 * Later on, the kernel will assign page-aligned memory resource back
39 static void __devinit quirk_resource_alignment(struct pci_dev *dev)
43 resource_size_t align, size;
46 if (!pci_is_reassigndev(dev))
49 if (dev->hdr_type == PCI_HEADER_TYPE_NORMAL &&
50 (dev->class >> 8) == PCI_CLASS_BRIDGE_HOST) {
52 "Can't reassign resources to host bridge.\n");
57 "Disabling memory decoding and releasing memory resources.\n");
58 pci_read_config_word(dev, PCI_COMMAND, &command);
59 command &= ~PCI_COMMAND_MEMORY;
60 pci_write_config_word(dev, PCI_COMMAND, command);
62 align = pci_specified_resource_alignment(dev);
63 for (i=0; i < PCI_BRIDGE_RESOURCES; i++) {
64 r = &dev->resource[i];
65 if (!(r->flags & IORESOURCE_MEM))
67 size = resource_size(r);
71 "Rounding up size of resource #%d to %#llx.\n",
72 i, (unsigned long long)size);
77 /* Need to disable bridge's resource window,
78 * to enable the kernel to reassign new resource
81 if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE &&
82 (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
83 for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
84 r = &dev->resource[i];
85 if (!(r->flags & IORESOURCE_MEM))
87 r->end = resource_size(r) - 1;
90 pci_disable_bridge_window(dev);
93 DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, quirk_resource_alignment);
96 * Decoding should be disabled for a PCI device during BAR sizing to avoid
97 * conflict. But doing so may cause problems on host bridge and perhaps other
98 * key system devices. For devices that need to have mmio decoding always-on,
99 * we need to set the dev->mmio_always_on bit.
101 static void __devinit quirk_mmio_always_on(struct pci_dev *dev)
103 if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST)
104 dev->mmio_always_on = 1;
106 DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_mmio_always_on);
108 /* The Mellanox Tavor device gives false positive parity errors
109 * Mark this device with a broken_parity_status, to allow
110 * PCI scanning code to "skip" this now blacklisted device.
112 static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
114 dev->broken_parity_status = 1; /* This device gives false positives */
116 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
117 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
119 /* Deal with broken BIOS'es that neglect to enable passive release,
120 which can cause problems in combination with the 82441FX/PPro MTRRs */
121 static void quirk_passive_release(struct pci_dev *dev)
123 struct pci_dev *d = NULL;
126 /* We have to make sure a particular bit is set in the PIIX3
127 ISA bridge, so we have to go out and find it. */
128 while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
129 pci_read_config_byte(d, 0x82, &dlc);
131 dev_info(&d->dev, "PIIX3: Enabling Passive Release\n");
133 pci_write_config_byte(d, 0x82, dlc);
137 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
138 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
140 /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
141 but VIA don't answer queries. If you happen to have good contacts at VIA
142 ask them for me please -- Alan
144 This appears to be BIOS not version dependent. So presumably there is a
147 static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
149 if (!isa_dma_bridge_buggy) {
150 isa_dma_bridge_buggy=1;
151 dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n");
155 * Its not totally clear which chipsets are the problematic ones
156 * We know 82C586 and 82C596 variants are affected.
158 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs);
159 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs);
160 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs);
161 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs);
162 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs);
163 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs);
164 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs);
167 * Intel NM10 "TigerPoint" LPC PM1a_STS.BM_STS must be clear
168 * for some HT machines to use C4 w/o hanging.
170 static void __devinit quirk_tigerpoint_bm_sts(struct pci_dev *dev)
175 pci_read_config_dword(dev, 0x40, &pmbase);
176 pmbase = pmbase & 0xff80;
180 dev_info(&dev->dev, FW_BUG "TigerPoint LPC.BM_STS cleared\n");
184 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGP_LPC, quirk_tigerpoint_bm_sts);
187 * Chipsets where PCI->PCI transfers vanish or hang
189 static void __devinit quirk_nopcipci(struct pci_dev *dev)
191 if ((pci_pci_problems & PCIPCI_FAIL)==0) {
192 dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n");
193 pci_pci_problems |= PCIPCI_FAIL;
196 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci);
197 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci);
199 static void __devinit quirk_nopciamd(struct pci_dev *dev)
202 pci_read_config_byte(dev, 0x08, &rev);
205 dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n");
206 pci_pci_problems |= PCIAGP_FAIL;
209 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
212 * Triton requires workarounds to be used by the drivers
214 static void __devinit quirk_triton(struct pci_dev *dev)
216 if ((pci_pci_problems&PCIPCI_TRITON)==0) {
217 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
218 pci_pci_problems |= PCIPCI_TRITON;
221 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton);
222 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton);
223 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton);
224 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton);
227 * VIA Apollo KT133 needs PCI latency patch
228 * Made according to a windows driver based patch by George E. Breese
229 * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
230 * and http://www.georgebreese.com/net/software/#PCI
231 * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
232 * the info on which Mr Breese based his work.
234 * Updated based on further information from the site and also on
235 * information provided by VIA
237 static void quirk_vialatency(struct pci_dev *dev)
241 /* Ok we have a potential problem chipset here. Now see if we have
242 a buggy southbridge */
244 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
246 /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
247 /* Check for buggy part revisions */
248 if (p->revision < 0x40 || p->revision > 0x42)
251 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
252 if (p==NULL) /* No problem parts */
254 /* Check for buggy part revisions */
255 if (p->revision < 0x10 || p->revision > 0x12)
260 * Ok we have the problem. Now set the PCI master grant to
261 * occur every master grant. The apparent bug is that under high
262 * PCI load (quite common in Linux of course) you can get data
263 * loss when the CPU is held off the bus for 3 bus master requests
264 * This happens to include the IDE controllers....
266 * VIA only apply this fix when an SB Live! is present but under
267 * both Linux and Windows this isn't enough, and we have seen
268 * corruption without SB Live! but with things like 3 UDMA IDE
269 * controllers. So we ignore that bit of the VIA recommendation..
272 pci_read_config_byte(dev, 0x76, &busarb);
273 /* Set bit 4 and bi 5 of byte 76 to 0x01
274 "Master priority rotation on every PCI master grant */
277 pci_write_config_byte(dev, 0x76, busarb);
278 dev_info(&dev->dev, "Applying VIA southbridge workaround\n");
282 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
283 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
284 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
285 /* Must restore this on a resume from RAM */
286 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
287 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
288 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
291 * VIA Apollo VP3 needs ETBF on BT848/878
293 static void __devinit quirk_viaetbf(struct pci_dev *dev)
295 if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
296 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
297 pci_pci_problems |= PCIPCI_VIAETBF;
300 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf);
302 static void __devinit quirk_vsfx(struct pci_dev *dev)
304 if ((pci_pci_problems&PCIPCI_VSFX)==0) {
305 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
306 pci_pci_problems |= PCIPCI_VSFX;
309 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx);
312 * Ali Magik requires workarounds to be used by the drivers
313 * that DMA to AGP space. Latency must be set to 0xA and triton
314 * workaround applied too
315 * [Info kindly provided by ALi]
317 static void __init quirk_alimagik(struct pci_dev *dev)
319 if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
320 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
321 pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
324 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik);
325 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik);
328 * Natoma has some interesting boundary conditions with Zoran stuff
331 static void __devinit quirk_natoma(struct pci_dev *dev)
333 if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
334 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
335 pci_pci_problems |= PCIPCI_NATOMA;
338 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma);
339 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma);
340 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma);
341 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma);
342 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma);
343 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma);
346 * This chip can cause PCI parity errors if config register 0xA0 is read
347 * while DMAs are occurring.
349 static void __devinit quirk_citrine(struct pci_dev *dev)
351 dev->cfg_size = 0xA0;
353 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine);
356 * S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
357 * If it's needed, re-allocate the region.
359 static void __devinit quirk_s3_64M(struct pci_dev *dev)
361 struct resource *r = &dev->resource[0];
363 if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
368 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M);
369 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M);
372 * Some CS5536 BIOSes (for example, the Soekris NET5501 board w/ comBIOS
373 * ver. 1.33 20070103) don't set the correct ISA PCI region header info.
374 * BAR0 should be 8 bytes; instead, it may be set to something like 8k
375 * (which conflicts w/ BAR1's memory range).
377 static void __devinit quirk_cs5536_vsa(struct pci_dev *dev)
379 if (pci_resource_len(dev, 0) != 8) {
380 struct resource *res = &dev->resource[0];
381 res->end = res->start + 8 - 1;
382 dev_info(&dev->dev, "CS5536 ISA bridge bug detected "
383 "(incorrect header); workaround applied.\n");
386 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_cs5536_vsa);
388 static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
389 unsigned size, int nr, const char *name)
393 struct pci_bus_region bus_region;
394 struct resource *res = dev->resource + nr;
396 res->name = pci_name(dev);
398 res->end = region + size - 1;
399 res->flags = IORESOURCE_IO;
401 /* Convert from PCI bus to resource space. */
402 bus_region.start = res->start;
403 bus_region.end = res->end;
404 pcibios_bus_to_resource(dev, res, &bus_region);
406 if (pci_claim_resource(dev, nr) == 0)
407 dev_info(&dev->dev, "quirk: %pR claimed by %s\n",
413 * ATI Northbridge setups MCE the processor if you even
414 * read somewhere between 0x3b0->0x3bb or read 0x3d3
416 static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
418 dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
419 /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
420 request_region(0x3b0, 0x0C, "RadeonIGP");
421 request_region(0x3d3, 0x01, "RadeonIGP");
423 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce);
426 * Let's make the southbridge information explicit instead
427 * of having to worry about people probing the ACPI areas,
428 * for example.. (Yes, it happens, and if you read the wrong
429 * ACPI register it will put the machine to sleep with no
430 * way of waking it up again. Bummer).
432 * ALI M7101: Two IO regions pointed to by words at
433 * 0xE0 (64 bytes of ACPI registers)
434 * 0xE2 (32 bytes of SMB registers)
436 static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
440 pci_read_config_word(dev, 0xE0, ®ion);
441 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
442 pci_read_config_word(dev, 0xE2, ®ion);
443 quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
445 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi);
447 static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
450 u32 mask, size, base;
452 pci_read_config_dword(dev, port, &devres);
453 if ((devres & enable) != enable)
455 mask = (devres >> 16) & 15;
456 base = devres & 0xffff;
459 unsigned bit = size >> 1;
460 if ((bit & mask) == bit)
465 * For now we only print it out. Eventually we'll want to
466 * reserve it (at least if it's in the 0x1000+ range), but
467 * let's get enough confirmation reports first.
470 dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
473 static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
476 u32 mask, size, base;
478 pci_read_config_dword(dev, port, &devres);
479 if ((devres & enable) != enable)
481 base = devres & 0xffff0000;
482 mask = (devres & 0x3f) << 16;
485 unsigned bit = size >> 1;
486 if ((bit & mask) == bit)
491 * For now we only print it out. Eventually we'll want to
492 * reserve it, but let's get enough confirmation reports first.
495 dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
499 * PIIX4 ACPI: Two IO regions pointed to by longwords at
500 * 0x40 (64 bytes of ACPI registers)
501 * 0x90 (16 bytes of SMB registers)
502 * and a few strange programmable PIIX4 device resources.
504 static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
508 pci_read_config_dword(dev, 0x40, ®ion);
509 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
510 pci_read_config_dword(dev, 0x90, ®ion);
511 quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
513 /* Device resource A has enables for some of the other ones */
514 pci_read_config_dword(dev, 0x5c, &res_a);
516 piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
517 piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
519 /* Device resource D is just bitfields for static resources */
521 /* Device 12 enabled? */
522 if (res_a & (1 << 29)) {
523 piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
524 piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
526 /* Device 13 enabled? */
527 if (res_a & (1 << 30)) {
528 piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
529 piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
531 piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
532 piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
534 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi);
535 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi);
537 #define ICH_PMBASE 0x40
538 #define ICH_ACPI_CNTL 0x44
539 #define ICH4_ACPI_EN 0x10
540 #define ICH6_ACPI_EN 0x80
541 #define ICH4_GPIOBASE 0x58
542 #define ICH4_GPIO_CNTL 0x5c
543 #define ICH4_GPIO_EN 0x10
544 #define ICH6_GPIOBASE 0x48
545 #define ICH6_GPIO_CNTL 0x4c
546 #define ICH6_GPIO_EN 0x10
549 * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
550 * 0x40 (128 bytes of ACPI, GPIO & TCO registers)
551 * 0x58 (64 bytes of GPIO I/O space)
553 static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
559 * The check for PCIBIOS_MIN_IO is to ensure we won't create a conflict
560 * with low legacy (and fixed) ports. We don't know the decoding
561 * priority and can't tell whether the legacy device or the one created
562 * here is really at that address. This happens on boards with broken
566 pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
567 if (enable & ICH4_ACPI_EN) {
568 pci_read_config_dword(dev, ICH_PMBASE, ®ion);
569 region &= PCI_BASE_ADDRESS_IO_MASK;
570 if (region >= PCIBIOS_MIN_IO)
571 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES,
572 "ICH4 ACPI/GPIO/TCO");
575 pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable);
576 if (enable & ICH4_GPIO_EN) {
577 pci_read_config_dword(dev, ICH4_GPIOBASE, ®ion);
578 region &= PCI_BASE_ADDRESS_IO_MASK;
579 if (region >= PCIBIOS_MIN_IO)
580 quirk_io_region(dev, region, 64,
581 PCI_BRIDGE_RESOURCES + 1, "ICH4 GPIO");
584 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi);
585 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi);
586 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi);
587 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi);
588 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi);
589 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi);
590 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi);
591 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi);
592 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
593 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
595 static void __devinit ich6_lpc_acpi_gpio(struct pci_dev *dev)
600 pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
601 if (enable & ICH6_ACPI_EN) {
602 pci_read_config_dword(dev, ICH_PMBASE, ®ion);
603 region &= PCI_BASE_ADDRESS_IO_MASK;
604 if (region >= PCIBIOS_MIN_IO)
605 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES,
606 "ICH6 ACPI/GPIO/TCO");
609 pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable);
610 if (enable & ICH6_GPIO_EN) {
611 pci_read_config_dword(dev, ICH6_GPIOBASE, ®ion);
612 region &= PCI_BASE_ADDRESS_IO_MASK;
613 if (region >= PCIBIOS_MIN_IO)
614 quirk_io_region(dev, region, 64,
615 PCI_BRIDGE_RESOURCES + 1, "ICH6 GPIO");
619 static void __devinit ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize)
624 pci_read_config_dword(dev, reg, &val);
632 * This is not correct. It is 16, 32 or 64 bytes depending on
633 * register D31:F0:ADh bits 5:4.
635 * But this gets us at least _part_ of it.
643 /* Just print it out for now. We should reserve it after more debugging */
644 dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base+size-1);
647 static void __devinit quirk_ich6_lpc(struct pci_dev *dev)
649 /* Shared ACPI/GPIO decode with all ICH6+ */
650 ich6_lpc_acpi_gpio(dev);
652 /* ICH6-specific generic IO decode */
653 ich6_lpc_generic_decode(dev, 0x84, "LPC Generic IO decode 1", 0);
654 ich6_lpc_generic_decode(dev, 0x88, "LPC Generic IO decode 2", 1);
656 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc);
657 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc);
659 static void __devinit ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name)
664 pci_read_config_dword(dev, reg, &val);
671 * IO base in bits 15:2, mask in bits 23:18, both
675 mask = (val >> 16) & 0xfc;
678 /* Just print it out for now. We should reserve it after more debugging */
679 dev_info(&dev->dev, "%s PIO at %04x (mask %04x)\n", name, base, mask);
682 /* ICH7-10 has the same common LPC generic IO decode registers */
683 static void __devinit quirk_ich7_lpc(struct pci_dev *dev)
685 /* We share the common ACPI/GPIO decode with ICH6 */
686 ich6_lpc_acpi_gpio(dev);
688 /* And have 4 ICH7+ generic decodes */
689 ich7_lpc_generic_decode(dev, 0x84, "ICH7 LPC Generic IO decode 1");
690 ich7_lpc_generic_decode(dev, 0x88, "ICH7 LPC Generic IO decode 2");
691 ich7_lpc_generic_decode(dev, 0x8c, "ICH7 LPC Generic IO decode 3");
692 ich7_lpc_generic_decode(dev, 0x90, "ICH7 LPC Generic IO decode 4");
694 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich7_lpc);
695 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich7_lpc);
696 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich7_lpc);
697 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich7_lpc);
698 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich7_lpc);
699 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich7_lpc);
700 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich7_lpc);
701 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich7_lpc);
702 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich7_lpc);
703 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich7_lpc);
704 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich7_lpc);
705 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich7_lpc);
706 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1, quirk_ich7_lpc);
709 * VIA ACPI: One IO region pointed to by longword at
710 * 0x48 or 0x20 (256 bytes of ACPI registers)
712 static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
716 if (dev->revision & 0x10) {
717 pci_read_config_dword(dev, 0x48, ®ion);
718 region &= PCI_BASE_ADDRESS_IO_MASK;
719 quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
722 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi);
725 * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
726 * 0x48 (256 bytes of ACPI registers)
727 * 0x70 (128 bytes of hardware monitoring register)
728 * 0x90 (16 bytes of SMB registers)
730 static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
735 quirk_vt82c586_acpi(dev);
737 pci_read_config_word(dev, 0x70, &hm);
738 hm &= PCI_BASE_ADDRESS_IO_MASK;
739 quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
741 pci_read_config_dword(dev, 0x90, &smb);
742 smb &= PCI_BASE_ADDRESS_IO_MASK;
743 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
745 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi);
748 * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
749 * 0x88 (128 bytes of power management registers)
750 * 0xd0 (16 bytes of SMB registers)
752 static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
756 pci_read_config_word(dev, 0x88, &pm);
757 pm &= PCI_BASE_ADDRESS_IO_MASK;
758 quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
760 pci_read_config_word(dev, 0xd0, &smb);
761 smb &= PCI_BASE_ADDRESS_IO_MASK;
762 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
764 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
767 * TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back:
768 * Disable fast back-to-back on the secondary bus segment
770 static void __devinit quirk_xio2000a(struct pci_dev *dev)
772 struct pci_dev *pdev;
775 dev_warn(&dev->dev, "TI XIO2000a quirk detected; "
776 "secondary bus fast back-to-back transfers disabled\n");
777 list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) {
778 pci_read_config_word(pdev, PCI_COMMAND, &command);
779 if (command & PCI_COMMAND_FAST_BACK)
780 pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK);
783 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A,
786 #ifdef CONFIG_X86_IO_APIC
788 #include <asm/io_apic.h>
791 * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
792 * devices to the external APIC.
794 * TODO: When we have device-specific interrupt routers,
795 * this code will go away from quirks.
797 static void quirk_via_ioapic(struct pci_dev *dev)
802 tmp = 0; /* nothing routed to external APIC */
804 tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
806 dev_info(&dev->dev, "%sbling VIA external APIC routing\n",
807 tmp == 0 ? "Disa" : "Ena");
809 /* Offset 0x58: External APIC IRQ output control */
810 pci_write_config_byte (dev, 0x58, tmp);
812 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
813 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
816 * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
817 * This leads to doubled level interrupt rates.
818 * Set this bit to get rid of cycle wastage.
819 * Otherwise uncritical.
821 static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
824 #define BYPASS_APIC_DEASSERT 8
826 pci_read_config_byte(dev, 0x5B, &misc_control2);
827 if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
828 dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
829 pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
832 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
833 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
836 * The AMD io apic can hang the box when an apic irq is masked.
837 * We check all revs >= B0 (yet not in the pre production!) as the bug
838 * is currently marked NoFix
840 * We have multiple reports of hangs with this chipset that went away with
841 * noapic specified. For the moment we assume it's the erratum. We may be wrong
842 * of course. However the advice is demonstrably good even if so..
844 static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
846 if (dev->revision >= 0x02) {
847 dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
848 dev_warn(&dev->dev, " : booting with the \"noapic\" option\n");
851 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
853 static void __init quirk_ioapic_rmw(struct pci_dev *dev)
855 if (dev->devfn == 0 && dev->bus->number == 0)
858 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw);
859 #endif /* CONFIG_X86_IO_APIC */
862 * Some settings of MMRBC can lead to data corruption so block changes.
863 * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
865 static void __init quirk_amd_8131_mmrbc(struct pci_dev *dev)
867 if (dev->subordinate && dev->revision <= 0x12) {
868 dev_info(&dev->dev, "AMD8131 rev %x detected; "
869 "disabling PCI-X MMRBC\n", dev->revision);
870 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
873 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
876 * FIXME: it is questionable that quirk_via_acpi
877 * is needed. It shows up as an ISA bridge, and does not
878 * support the PCI_INTERRUPT_LINE register at all. Therefore
879 * it seems like setting the pci_dev's 'irq' to the
880 * value of the ACPI SCI interrupt is only done for convenience.
883 static void __devinit quirk_via_acpi(struct pci_dev *d)
886 * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
889 pci_read_config_byte(d, 0x42, &irq);
891 if (irq && (irq != 2))
894 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi);
895 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi);
899 * VIA bridges which have VLink
902 static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
904 static void quirk_via_bridge(struct pci_dev *dev)
906 /* See what bridge we have and find the device ranges */
907 switch (dev->device) {
908 case PCI_DEVICE_ID_VIA_82C686:
909 /* The VT82C686 is special, it attaches to PCI and can have
910 any device number. All its subdevices are functions of
911 that single device. */
912 via_vlink_dev_lo = PCI_SLOT(dev->devfn);
913 via_vlink_dev_hi = PCI_SLOT(dev->devfn);
915 case PCI_DEVICE_ID_VIA_8237:
916 case PCI_DEVICE_ID_VIA_8237A:
917 via_vlink_dev_lo = 15;
919 case PCI_DEVICE_ID_VIA_8235:
920 via_vlink_dev_lo = 16;
922 case PCI_DEVICE_ID_VIA_8231:
923 case PCI_DEVICE_ID_VIA_8233_0:
924 case PCI_DEVICE_ID_VIA_8233A:
925 case PCI_DEVICE_ID_VIA_8233C_0:
926 via_vlink_dev_lo = 17;
930 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
931 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
932 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
933 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
934 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
935 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
936 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
937 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
940 * quirk_via_vlink - VIA VLink IRQ number update
943 * If the device we are dealing with is on a PIC IRQ we need to
944 * ensure that the IRQ line register which usually is not relevant
945 * for PCI cards, is actually written so that interrupts get sent
946 * to the right place.
947 * We only do this on systems where a VIA south bridge was detected,
948 * and only for VIA devices on the motherboard (see quirk_via_bridge
952 static void quirk_via_vlink(struct pci_dev *dev)
956 /* Check if we have VLink at all */
957 if (via_vlink_dev_lo == -1)
962 /* Don't quirk interrupts outside the legacy IRQ range */
963 if (!new_irq || new_irq > 15)
966 /* Internal device ? */
967 if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
968 PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
971 /* This is an internal VLink device on a PIC interrupt. The BIOS
972 ought to have set this but may not have, so we redo it */
974 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
975 if (new_irq != irq) {
976 dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n",
978 udelay(15); /* unknown if delay really needed */
979 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
982 DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
985 * VIA VT82C598 has its device ID settable and many BIOSes
986 * set it to the ID of VT82C597 for backward compatibility.
987 * We need to switch it off to be able to recognize the real
990 static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
992 pci_write_config_byte(dev, 0xfc, 0);
993 pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
995 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id);
998 * CardBus controllers have a legacy base address that enables them
999 * to respond as i82365 pcmcia controllers. We don't want them to
1000 * do this even if the Linux CardBus driver is not loaded, because
1001 * the Linux i82365 driver does not (and should not) handle CardBus.
1003 static void quirk_cardbus_legacy(struct pci_dev *dev)
1005 if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
1007 pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
1009 DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
1010 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
1013 * Following the PCI ordering rules is optional on the AMD762. I'm not
1014 * sure what the designers were smoking but let's not inhale...
1016 * To be fair to AMD, it follows the spec by default, its BIOS people
1019 static void quirk_amd_ordering(struct pci_dev *dev)
1022 pci_read_config_dword(dev, 0x4C, &pcic);
1025 dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n");
1026 pci_write_config_dword(dev, 0x4C, pcic);
1027 pci_read_config_dword(dev, 0x84, &pcic);
1028 pcic |= (1<<23); /* Required in this mode */
1029 pci_write_config_dword(dev, 0x84, pcic);
1032 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
1033 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
1036 * DreamWorks provided workaround for Dunord I-3000 problem
1038 * This card decodes and responds to addresses not apparently
1039 * assigned to it. We force a larger allocation to ensure that
1040 * nothing gets put too close to it.
1042 static void __devinit quirk_dunord ( struct pci_dev * dev )
1044 struct resource *r = &dev->resource [1];
1048 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord);
1051 * i82380FB mobile docking controller: its PCI-to-PCI bridge
1052 * is subtractive decoding (transparent), and does indicate this
1053 * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
1056 static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
1058 dev->transparent = 1;
1060 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge);
1061 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge);
1064 * Common misconfiguration of the MediaGX/Geode PCI master that will
1065 * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
1066 * datasheets found at http://www.national.com/analog for info on what
1067 * these bits do. <christer@weinigel.se>
1069 static void quirk_mediagx_master(struct pci_dev *dev)
1072 pci_read_config_byte(dev, 0x41, ®);
1075 dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
1076 pci_write_config_byte(dev, 0x41, reg);
1079 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
1080 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
1083 * Ensure C0 rev restreaming is off. This is normally done by
1084 * the BIOS but in the odd case it is not the results are corruption
1085 * hence the presence of a Linux check
1087 static void quirk_disable_pxb(struct pci_dev *pdev)
1091 if (pdev->revision != 0x04) /* Only C0 requires this */
1093 pci_read_config_word(pdev, 0x40, &config);
1094 if (config & (1<<6)) {
1096 pci_write_config_word(pdev, 0x40, config);
1097 dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n");
1100 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
1101 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
1103 static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
1105 /* set SBX00/Hudson-2 SATA in IDE mode to AHCI mode */
1108 pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
1110 pci_read_config_byte(pdev, 0x40, &tmp);
1111 pci_write_config_byte(pdev, 0x40, tmp|1);
1112 pci_write_config_byte(pdev, 0x9, 1);
1113 pci_write_config_byte(pdev, 0xa, 6);
1114 pci_write_config_byte(pdev, 0x40, tmp);
1116 pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
1117 dev_info(&pdev->dev, "set SATA to AHCI mode\n");
1120 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
1121 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
1122 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
1123 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
1124 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
1125 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
1126 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode);
1127 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode);
1130 * Serverworks CSB5 IDE does not fully support native mode
1132 static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
1135 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
1139 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
1140 /* PCI layer will sort out resources */
1143 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
1146 * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
1148 static void __init quirk_ide_samemode(struct pci_dev *pdev)
1152 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
1154 if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
1155 dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n");
1158 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
1161 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
1164 * Some ATA devices break if put into D3
1167 static void __devinit quirk_no_ata_d3(struct pci_dev *pdev)
1169 /* Quirk the legacy ATA devices only. The AHCI ones are ok */
1170 if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE)
1171 pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
1173 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, quirk_no_ata_d3);
1174 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_no_ata_d3);
1175 /* ALi loses some register settings that we cannot then restore */
1176 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, quirk_no_ata_d3);
1177 /* VIA comes back fine but we need to keep it alive or ACPI GTM failures
1178 occur when mode detecting */
1179 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_no_ata_d3);
1181 /* This was originally an Alpha specific thing, but it really fits here.
1182 * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
1184 static void __init quirk_eisa_bridge(struct pci_dev *dev)
1186 dev->class = PCI_CLASS_BRIDGE_EISA << 8;
1188 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge);
1192 * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
1193 * is not activated. The myth is that Asus said that they do not want the
1194 * users to be irritated by just another PCI Device in the Win98 device
1195 * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
1196 * package 2.7.0 for details)
1198 * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
1199 * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
1200 * becomes necessary to do this tweak in two steps -- the chosen trigger
1201 * is either the Host bridge (preferred) or on-board VGA controller.
1203 * Note that we used to unhide the SMBus that way on Toshiba laptops
1204 * (Satellite A40 and Tecra M2) but then found that the thermal management
1205 * was done by SMM code, which could cause unsynchronized concurrent
1206 * accesses to the SMBus registers, with potentially bad effects. Thus you
1207 * should be very careful when adding new entries: if SMM is accessing the
1208 * Intel SMBus, this is a very good reason to leave it hidden.
1210 * Likewise, many recent laptops use ACPI for thermal management. If the
1211 * ACPI DSDT code accesses the SMBus, then Linux should not access it
1212 * natively, and keeping the SMBus hidden is the right thing to do. If you
1213 * are about to add an entry in the table below, please first disassemble
1214 * the DSDT and double-check that there is no code accessing the SMBus.
1216 static int asus_hides_smbus;
1218 static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
1220 if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1221 if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
1222 switch(dev->subsystem_device) {
1223 case 0x8025: /* P4B-LX */
1224 case 0x8070: /* P4B */
1225 case 0x8088: /* P4B533 */
1226 case 0x1626: /* L3C notebook */
1227 asus_hides_smbus = 1;
1229 else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
1230 switch(dev->subsystem_device) {
1231 case 0x80b1: /* P4GE-V */
1232 case 0x80b2: /* P4PE */
1233 case 0x8093: /* P4B533-V */
1234 asus_hides_smbus = 1;
1236 else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
1237 switch(dev->subsystem_device) {
1238 case 0x8030: /* P4T533 */
1239 asus_hides_smbus = 1;
1241 else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
1242 switch (dev->subsystem_device) {
1243 case 0x8070: /* P4G8X Deluxe */
1244 asus_hides_smbus = 1;
1246 else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
1247 switch (dev->subsystem_device) {
1248 case 0x80c9: /* PU-DLS */
1249 asus_hides_smbus = 1;
1251 else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
1252 switch (dev->subsystem_device) {
1253 case 0x1751: /* M2N notebook */
1254 case 0x1821: /* M5N notebook */
1255 case 0x1897: /* A6L notebook */
1256 asus_hides_smbus = 1;
1258 else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1259 switch (dev->subsystem_device) {
1260 case 0x184b: /* W1N notebook */
1261 case 0x186a: /* M6Ne notebook */
1262 asus_hides_smbus = 1;
1264 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
1265 switch (dev->subsystem_device) {
1266 case 0x80f2: /* P4P800-X */
1267 asus_hides_smbus = 1;
1269 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
1270 switch (dev->subsystem_device) {
1271 case 0x1882: /* M6V notebook */
1272 case 0x1977: /* A6VA notebook */
1273 asus_hides_smbus = 1;
1275 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
1276 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1277 switch(dev->subsystem_device) {
1278 case 0x088C: /* HP Compaq nc8000 */
1279 case 0x0890: /* HP Compaq nc6000 */
1280 asus_hides_smbus = 1;
1282 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
1283 switch (dev->subsystem_device) {
1284 case 0x12bc: /* HP D330L */
1285 case 0x12bd: /* HP D530 */
1286 case 0x006a: /* HP Compaq nx9500 */
1287 asus_hides_smbus = 1;
1289 else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
1290 switch (dev->subsystem_device) {
1291 case 0x12bf: /* HP xw4100 */
1292 asus_hides_smbus = 1;
1294 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
1295 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1296 switch(dev->subsystem_device) {
1297 case 0xC00C: /* Samsung P35 notebook */
1298 asus_hides_smbus = 1;
1300 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
1301 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1302 switch(dev->subsystem_device) {
1303 case 0x0058: /* Compaq Evo N620c */
1304 asus_hides_smbus = 1;
1306 else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
1307 switch(dev->subsystem_device) {
1308 case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
1309 /* Motherboard doesn't have Host bridge
1310 * subvendor/subdevice IDs, therefore checking
1311 * its on-board VGA controller */
1312 asus_hides_smbus = 1;
1314 else if (dev->device == PCI_DEVICE_ID_INTEL_82801DB_2)
1315 switch(dev->subsystem_device) {
1316 case 0x00b8: /* Compaq Evo D510 CMT */
1317 case 0x00b9: /* Compaq Evo D510 SFF */
1318 case 0x00ba: /* Compaq Evo D510 USDT */
1319 /* Motherboard doesn't have Host bridge
1320 * subvendor/subdevice IDs and on-board VGA
1321 * controller is disabled if an AGP card is
1322 * inserted, therefore checking USB UHCI
1324 asus_hides_smbus = 1;
1326 else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC)
1327 switch (dev->subsystem_device) {
1328 case 0x001A: /* Compaq Deskpro EN SSF P667 815E */
1329 /* Motherboard doesn't have host bridge
1330 * subvendor/subdevice IDs, therefore checking
1331 * its on-board VGA controller */
1332 asus_hides_smbus = 1;
1336 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge);
1337 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge);
1338 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge);
1339 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge);
1340 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge);
1341 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge);
1342 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge);
1343 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge);
1344 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge);
1345 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
1347 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge);
1348 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_2, asus_hides_smbus_hostbridge);
1349 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge);
1351 static void asus_hides_smbus_lpc(struct pci_dev *dev)
1355 if (likely(!asus_hides_smbus))
1358 pci_read_config_word(dev, 0xF2, &val);
1360 pci_write_config_word(dev, 0xF2, val & (~0x8));
1361 pci_read_config_word(dev, 0xF2, &val);
1363 dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
1365 dev_info(&dev->dev, "Enabled i801 SMBus device\n");
1368 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1369 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1370 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1371 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1372 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1373 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1374 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
1375 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1376 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1377 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1378 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1379 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1380 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1381 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
1383 /* It appears we just have one such device. If not, we have a warning */
1384 static void __iomem *asus_rcba_base;
1385 static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev)
1389 if (likely(!asus_hides_smbus))
1391 WARN_ON(asus_rcba_base);
1393 pci_read_config_dword(dev, 0xF0, &rcba);
1394 /* use bits 31:14, 16 kB aligned */
1395 asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000);
1396 if (asus_rcba_base == NULL)
1400 static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev)
1404 if (likely(!asus_hides_smbus || !asus_rcba_base))
1406 /* read the Function Disable register, dword mode only */
1407 val = readl(asus_rcba_base + 0x3418);
1408 writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */
1411 static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev)
1413 if (likely(!asus_hides_smbus || !asus_rcba_base))
1415 iounmap(asus_rcba_base);
1416 asus_rcba_base = NULL;
1417 dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n");
1420 static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
1422 asus_hides_smbus_lpc_ich6_suspend(dev);
1423 asus_hides_smbus_lpc_ich6_resume_early(dev);
1424 asus_hides_smbus_lpc_ich6_resume(dev);
1426 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6);
1427 DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend);
1428 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume);
1429 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early);
1432 * SiS 96x south bridge: BIOS typically hides SMBus device...
1434 static void quirk_sis_96x_smbus(struct pci_dev *dev)
1437 pci_read_config_byte(dev, 0x77, &val);
1439 dev_info(&dev->dev, "Enabling SiS 96x SMBus\n");
1440 pci_write_config_byte(dev, 0x77, val & ~0x10);
1443 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1444 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1445 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1446 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
1447 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1448 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1449 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1450 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
1453 * ... This is further complicated by the fact that some SiS96x south
1454 * bridges pretend to be 85C503/5513 instead. In that case see if we
1455 * spotted a compatible north bridge to make sure.
1456 * (pci_find_device doesn't work yet)
1458 * We can also enable the sis96x bit in the discovery register..
1460 #define SIS_DETECT_REGISTER 0x40
1462 static void quirk_sis_503(struct pci_dev *dev)
1467 pci_read_config_byte(dev, SIS_DETECT_REGISTER, ®);
1468 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
1469 pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
1470 if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
1471 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
1476 * Ok, it now shows up as a 96x.. run the 96x quirk by
1477 * hand in case it has already been processed.
1478 * (depends on link order, which is apparently not guaranteed)
1480 dev->device = devid;
1481 quirk_sis_96x_smbus(dev);
1483 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
1484 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
1488 * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
1489 * and MC97 modem controller are disabled when a second PCI soundcard is
1490 * present. This patch, tweaking the VT8237 ISA bridge, enables them.
1493 static void asus_hides_ac97_lpc(struct pci_dev *dev)
1496 int asus_hides_ac97 = 0;
1498 if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1499 if (dev->device == PCI_DEVICE_ID_VIA_8237)
1500 asus_hides_ac97 = 1;
1503 if (!asus_hides_ac97)
1506 pci_read_config_byte(dev, 0x50, &val);
1508 pci_write_config_byte(dev, 0x50, val & (~0xc0));
1509 pci_read_config_byte(dev, 0x50, &val);
1511 dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
1513 dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n");
1516 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
1517 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
1519 #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
1522 * If we are using libata we can drive this chip properly but must
1523 * do this early on to make the additional device appear during
1526 static void quirk_jmicron_ata(struct pci_dev *pdev)
1528 u32 conf1, conf5, class;
1531 /* Only poke fn 0 */
1532 if (PCI_FUNC(pdev->devfn))
1535 pci_read_config_dword(pdev, 0x40, &conf1);
1536 pci_read_config_dword(pdev, 0x80, &conf5);
1538 conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
1539 conf5 &= ~(1 << 24); /* Clear bit 24 */
1541 switch (pdev->device) {
1542 case PCI_DEVICE_ID_JMICRON_JMB360: /* SATA single port */
1543 case PCI_DEVICE_ID_JMICRON_JMB362: /* SATA dual ports */
1544 case PCI_DEVICE_ID_JMICRON_JMB364: /* SATA dual ports */
1545 /* The controller should be in single function ahci mode */
1546 conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
1549 case PCI_DEVICE_ID_JMICRON_JMB365:
1550 case PCI_DEVICE_ID_JMICRON_JMB366:
1551 /* Redirect IDE second PATA port to the right spot */
1554 case PCI_DEVICE_ID_JMICRON_JMB361:
1555 case PCI_DEVICE_ID_JMICRON_JMB363:
1556 case PCI_DEVICE_ID_JMICRON_JMB369:
1557 /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
1558 /* Set the class codes correctly and then direct IDE 0 */
1559 conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
1562 case PCI_DEVICE_ID_JMICRON_JMB368:
1563 /* The controller should be in single function IDE mode */
1564 conf1 |= 0x00C00000; /* Set 22, 23 */
1568 pci_write_config_dword(pdev, 0x40, conf1);
1569 pci_write_config_dword(pdev, 0x80, conf5);
1571 /* Update pdev accordingly */
1572 pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
1573 pdev->hdr_type = hdr & 0x7f;
1574 pdev->multifunction = !!(hdr & 0x80);
1576 pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
1577 pdev->class = class >> 8;
1579 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1580 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1581 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
1582 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1583 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata);
1584 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1585 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1586 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1587 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata);
1588 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1589 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1590 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
1591 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1592 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata);
1593 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1594 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1595 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1596 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata);
1600 #ifdef CONFIG_X86_IO_APIC
1601 static void __init quirk_alder_ioapic(struct pci_dev *pdev)
1605 if ((pdev->class >> 8) != 0xff00)
1608 /* the first BAR is the location of the IO APIC...we must
1609 * not touch this (and it's already covered by the fixmap), so
1610 * forcibly insert it into the resource tree */
1611 if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
1612 insert_resource(&iomem_resource, &pdev->resource[0]);
1614 /* The next five BARs all seem to be rubbish, so just clean
1616 for (i=1; i < 6; i++) {
1617 memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
1621 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
1624 static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
1629 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
1630 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
1631 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
1635 * It's possible for the MSI to get corrupted if shpc and acpi
1636 * are used together on certain PXH-based systems.
1638 static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
1642 dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n");
1644 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
1645 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
1646 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
1647 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
1648 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
1651 * Some Intel PCI Express chipsets have trouble with downstream
1652 * device power management.
1654 static void quirk_intel_pcie_pm(struct pci_dev * dev)
1656 pci_pm_d3_delay = 120;
1660 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
1661 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
1662 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
1663 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
1664 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
1665 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
1666 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
1667 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
1668 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
1669 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
1670 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
1671 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
1672 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
1673 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
1674 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
1675 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
1676 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
1677 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
1678 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
1679 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
1680 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
1682 #ifdef CONFIG_X86_IO_APIC
1684 * Boot interrupts on some chipsets cannot be turned off. For these chipsets,
1685 * remap the original interrupt in the linux kernel to the boot interrupt, so
1686 * that a PCI device's interrupt handler is installed on the boot interrupt
1689 static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev)
1691 if (noioapicquirk || noioapicreroute)
1694 dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT;
1695 dev_info(&dev->dev, "rerouting interrupts for [%04x:%04x]\n",
1696 dev->vendor, dev->device);
1698 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1699 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1700 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1701 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1702 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1703 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1704 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1705 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
1706 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1707 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1708 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1709 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1710 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1711 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1712 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1713 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
1716 * On some chipsets we can disable the generation of legacy INTx boot
1721 * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no
1722 * 300641-004US, section 5.7.3.
1724 #define INTEL_6300_IOAPIC_ABAR 0x40
1725 #define INTEL_6300_DISABLE_BOOT_IRQ (1<<14)
1727 static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
1729 u16 pci_config_word;
1734 pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word);
1735 pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ;
1736 pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word);
1738 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1739 dev->vendor, dev->device);
1741 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
1742 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
1745 * disable boot interrupts on HT-1000
1747 #define BC_HT1000_FEATURE_REG 0x64
1748 #define BC_HT1000_PIC_REGS_ENABLE (1<<0)
1749 #define BC_HT1000_MAP_IDX 0xC00
1750 #define BC_HT1000_MAP_DATA 0xC01
1752 static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
1754 u32 pci_config_dword;
1760 pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
1761 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
1762 BC_HT1000_PIC_REGS_ENABLE);
1764 for (irq = 0x10; irq < 0x10 + 32; irq++) {
1765 outb(irq, BC_HT1000_MAP_IDX);
1766 outb(0x00, BC_HT1000_MAP_DATA);
1769 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
1771 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1772 dev->vendor, dev->device);
1774 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
1775 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
1778 * disable boot interrupts on AMD and ATI chipsets
1781 * NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131
1782 * rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode
1783 * (due to an erratum).
1785 #define AMD_813X_MISC 0x40
1786 #define AMD_813X_NOIOAMODE (1<<0)
1787 #define AMD_813X_REV_B1 0x12
1788 #define AMD_813X_REV_B2 0x13
1790 static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
1792 u32 pci_config_dword;
1796 if ((dev->revision == AMD_813X_REV_B1) ||
1797 (dev->revision == AMD_813X_REV_B2))
1800 pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
1801 pci_config_dword &= ~AMD_813X_NOIOAMODE;
1802 pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword);
1804 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1805 dev->vendor, dev->device);
1807 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1808 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1809 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1810 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1812 #define AMD_8111_PCI_IRQ_ROUTING 0x56
1814 static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev)
1816 u16 pci_config_word;
1821 pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word);
1822 if (!pci_config_word) {
1823 dev_info(&dev->dev, "boot interrupts on device [%04x:%04x] "
1824 "already disabled\n", dev->vendor, dev->device);
1827 pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0);
1828 dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
1829 dev->vendor, dev->device);
1831 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
1832 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
1833 #endif /* CONFIG_X86_IO_APIC */
1836 * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
1837 * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
1838 * Re-allocate the region if needed...
1840 static void __init quirk_tc86c001_ide(struct pci_dev *dev)
1842 struct resource *r = &dev->resource[0];
1844 if (r->start & 0x8) {
1849 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
1850 PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
1851 quirk_tc86c001_ide);
1853 static void __devinit quirk_netmos(struct pci_dev *dev)
1855 unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
1856 unsigned int num_serial = dev->subsystem_device & 0xf;
1859 * These Netmos parts are multiport serial devices with optional
1860 * parallel ports. Even when parallel ports are present, they
1861 * are identified as class SERIAL, which means the serial driver
1862 * will claim them. To prevent this, mark them as class OTHER.
1863 * These combo devices should be claimed by parport_serial.
1865 * The subdevice ID is of the form 0x00PS, where <P> is the number
1866 * of parallel ports and <S> is the number of serial ports.
1868 switch (dev->device) {
1869 case PCI_DEVICE_ID_NETMOS_9835:
1870 /* Well, this rule doesn't hold for the following 9835 device */
1871 if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
1872 dev->subsystem_device == 0x0299)
1874 case PCI_DEVICE_ID_NETMOS_9735:
1875 case PCI_DEVICE_ID_NETMOS_9745:
1876 case PCI_DEVICE_ID_NETMOS_9845:
1877 case PCI_DEVICE_ID_NETMOS_9855:
1878 if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
1880 dev_info(&dev->dev, "Netmos %04x (%u parallel, "
1881 "%u serial); changing class SERIAL to OTHER "
1882 "(use parport_serial)\n",
1883 dev->device, num_parallel, num_serial);
1884 dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
1885 (dev->class & 0xff);
1889 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
1891 static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
1898 switch (dev->device) {
1899 /* PCI IDs taken from drivers/net/e100.c */
1901 case 0x1030 ... 0x1034:
1902 case 0x1038 ... 0x103E:
1903 case 0x1050 ... 0x1057:
1905 case 0x1064 ... 0x106B:
1906 case 0x1091 ... 0x1095:
1919 * Some firmware hands off the e100 with interrupts enabled,
1920 * which can cause a flood of interrupts if packets are
1921 * received before the driver attaches to the device. So
1922 * disable all e100 interrupts here. The driver will
1923 * re-enable them when it's ready.
1925 pci_read_config_word(dev, PCI_COMMAND, &command);
1927 if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
1931 * Check that the device is in the D0 power state. If it's not,
1932 * there is no point to look any further.
1934 pm = pci_find_capability(dev, PCI_CAP_ID_PM);
1936 pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
1937 if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
1941 /* Convert from PCI bus to resource space. */
1942 csr = ioremap(pci_resource_start(dev, 0), 8);
1944 dev_warn(&dev->dev, "Can't map e100 registers\n");
1948 cmd_hi = readb(csr + 3);
1950 dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; "
1957 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
1960 * The 82575 and 82598 may experience data corruption issues when transitioning
1961 * out of L0S. To prevent this we need to disable L0S on the pci-e link
1963 static void __devinit quirk_disable_aspm_l0s(struct pci_dev *dev)
1965 dev_info(&dev->dev, "Disabling L0s\n");
1966 pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
1968 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s);
1969 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s);
1970 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s);
1971 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s);
1972 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s);
1973 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s);
1974 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s);
1975 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s);
1976 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s);
1977 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s);
1978 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s);
1979 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
1980 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
1981 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
1983 static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
1985 /* rev 1 ncr53c810 chips don't set the class at all which means
1986 * they don't get their resources remapped. Fix that here.
1989 if (dev->class == PCI_CLASS_NOT_DEFINED) {
1990 dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n");
1991 dev->class = PCI_CLASS_STORAGE_SCSI;
1994 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
1996 /* Enable 1k I/O space granularity on the Intel P64H2 */
1997 static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
2000 u8 io_base_lo, io_limit_lo;
2001 unsigned long base, limit;
2002 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
2004 pci_read_config_word(dev, 0x40, &en1k);
2007 dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n");
2009 pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
2010 pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
2011 base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
2012 limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
2014 if (base <= limit) {
2016 res->end = limit + 0x3ff;
2020 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
2022 /* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
2023 * The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
2024 * in drivers/pci/setup-bus.c
2026 static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
2028 u16 en1k, iobl_adr, iobl_adr_1k;
2029 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
2031 pci_read_config_word(dev, 0x40, &en1k);
2034 pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
2036 iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
2038 if (iobl_adr != iobl_adr_1k) {
2039 dev_info(&dev->dev, "Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1KB granularity\n",
2040 iobl_adr,iobl_adr_1k);
2041 pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
2045 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
2047 /* Under some circumstances, AER is not linked with extended capabilities.
2048 * Force it to be linked by setting the corresponding control bit in the
2051 static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
2054 if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
2056 pci_write_config_byte(dev, 0xf41, b | 0x20);
2058 "Linking AER extended capability\n");
2062 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2063 quirk_nvidia_ck804_pcie_aer_ext_cap);
2064 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2065 quirk_nvidia_ck804_pcie_aer_ext_cap);
2067 static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
2070 * Disable PCI Bus Parking and PCI Master read caching on CX700
2071 * which causes unspecified timing errors with a VT6212L on the PCI
2072 * bus leading to USB2.0 packet loss.
2074 * This quirk is only enabled if a second (on the external PCI bus)
2075 * VT6212L is found -- the CX700 core itself also contains a USB
2076 * host controller with the same PCI ID as the VT6212L.
2079 /* Count VT6212L instances */
2080 struct pci_dev *p = pci_get_device(PCI_VENDOR_ID_VIA,
2081 PCI_DEVICE_ID_VIA_8235_USB_2, NULL);
2084 /* p should contain the first (internal) VT6212L -- see if we have
2085 an external one by searching again */
2086 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235_USB_2, p);
2091 if (pci_read_config_byte(dev, 0x76, &b) == 0) {
2093 /* Turn off PCI Bus Parking */
2094 pci_write_config_byte(dev, 0x76, b ^ 0x40);
2097 "Disabling VIA CX700 PCI parking\n");
2101 if (pci_read_config_byte(dev, 0x72, &b) == 0) {
2103 /* Turn off PCI Master read caching */
2104 pci_write_config_byte(dev, 0x72, 0x0);
2106 /* Set PCI Master Bus time-out to "1x16 PCLK" */
2107 pci_write_config_byte(dev, 0x75, 0x1);
2109 /* Disable "Read FIFO Timer" */
2110 pci_write_config_byte(dev, 0x77, 0x0);
2113 "Disabling VIA CX700 PCI caching\n");
2117 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
2120 * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
2121 * VPD end tag will hang the device. This problem was initially
2122 * observed when a vpd entry was created in sysfs
2123 * ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry
2124 * will dump 32k of data. Reading a full 32k will cause an access
2125 * beyond the VPD end tag causing the device to hang. Once the device
2126 * is hung, the bnx2 driver will not be able to reset the device.
2127 * We believe that it is legal to read beyond the end tag and
2128 * therefore the solution is to limit the read/write length.
2130 static void __devinit quirk_brcm_570x_limit_vpd(struct pci_dev *dev)
2133 * Only disable the VPD capability for 5706, 5706S, 5708,
2134 * 5708S and 5709 rev. A
2136 if ((dev->device == PCI_DEVICE_ID_NX2_5706) ||
2137 (dev->device == PCI_DEVICE_ID_NX2_5706S) ||
2138 (dev->device == PCI_DEVICE_ID_NX2_5708) ||
2139 (dev->device == PCI_DEVICE_ID_NX2_5708S) ||
2140 ((dev->device == PCI_DEVICE_ID_NX2_5709) &&
2141 (dev->revision & 0xf0) == 0x0)) {
2143 dev->vpd->len = 0x80;
2147 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2148 PCI_DEVICE_ID_NX2_5706,
2149 quirk_brcm_570x_limit_vpd);
2150 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2151 PCI_DEVICE_ID_NX2_5706S,
2152 quirk_brcm_570x_limit_vpd);
2153 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2154 PCI_DEVICE_ID_NX2_5708,
2155 quirk_brcm_570x_limit_vpd);
2156 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2157 PCI_DEVICE_ID_NX2_5708S,
2158 quirk_brcm_570x_limit_vpd);
2159 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2160 PCI_DEVICE_ID_NX2_5709,
2161 quirk_brcm_570x_limit_vpd);
2162 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2163 PCI_DEVICE_ID_NX2_5709S,
2164 quirk_brcm_570x_limit_vpd);
2166 /* Originally in EDAC sources for i82875P:
2167 * Intel tells BIOS developers to hide device 6 which
2168 * configures the overflow device access containing
2169 * the DRBs - this is where we expose device 6.
2170 * http://www.x86-secret.com/articles/tweak/pat/patsecrets-2.htm
2172 static void __devinit quirk_unhide_mch_dev6(struct pci_dev *dev)
2176 if (pci_read_config_byte(dev, 0xF4, ®) == 0 && !(reg & 0x02)) {
2177 dev_info(&dev->dev, "Enabling MCH 'Overflow' Device\n");
2178 pci_write_config_byte(dev, 0xF4, reg | 0x02);
2182 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB,
2183 quirk_unhide_mch_dev6);
2184 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB,
2185 quirk_unhide_mch_dev6);
2189 * The Tilera TILEmpower platform needs to set the link speed
2190 * to 2.5GT(Giga-Transfers)/s (Gen 1). The default link speed
2191 * setting is 5GT/s (Gen 2). 0x98 is the Link Control2 PCIe
2192 * capability register of the PEX8624 PCIe switch. The switch
2193 * supports link speed auto negotiation, but falsely sets
2194 * the link speed to 5GT/s.
2196 static void __devinit quirk_tile_plx_gen1(struct pci_dev *dev)
2198 if (tile_plx_gen1) {
2199 pci_write_config_dword(dev, 0x98, 0x1);
2203 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8624, quirk_tile_plx_gen1);
2204 #endif /* CONFIG_TILE */
2206 #ifdef CONFIG_PCI_MSI
2207 /* Some chipsets do not support MSI. We cannot easily rely on setting
2208 * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
2209 * some other busses controlled by the chipset even if Linux is not
2210 * aware of it. Instead of setting the flag on all busses in the
2211 * machine, simply disable MSI globally.
2213 static void __init quirk_disable_all_msi(struct pci_dev *dev)
2216 dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n");
2218 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
2219 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
2220 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
2221 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
2222 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
2223 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi);
2224 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi);
2226 /* Disable MSI on chipsets that are known to not support it */
2227 static void __devinit quirk_disable_msi(struct pci_dev *dev)
2229 if (dev->subordinate) {
2230 dev_warn(&dev->dev, "MSI quirk detected; "
2231 "subordinate MSI disabled\n");
2232 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2235 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
2236 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0xa238, quirk_disable_msi);
2237 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x5a3f, quirk_disable_msi);
2240 * The APC bridge device in AMD 780 family northbridges has some random
2241 * OEM subsystem ID in its vendor ID register (erratum 18), so instead
2242 * we use the possible vendor/device IDs of the host bridge for the
2243 * declared quirk, and search for the APC bridge by slot number.
2245 static void __devinit quirk_amd_780_apc_msi(struct pci_dev *host_bridge)
2247 struct pci_dev *apc_bridge;
2249 apc_bridge = pci_get_slot(host_bridge->bus, PCI_DEVFN(1, 0));
2251 if (apc_bridge->device == 0x9602)
2252 quirk_disable_msi(apc_bridge);
2253 pci_dev_put(apc_bridge);
2256 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9600, quirk_amd_780_apc_msi);
2257 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9601, quirk_amd_780_apc_msi);
2259 /* Go through the list of Hypertransport capabilities and
2260 * return 1 if a HT MSI capability is found and enabled */
2261 static int __devinit msi_ht_cap_enabled(struct pci_dev *dev)
2265 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2266 while (pos && ttl--) {
2269 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2272 dev_info(&dev->dev, "Found %s HT MSI Mapping\n",
2273 flags & HT_MSI_FLAGS_ENABLE ?
2274 "enabled" : "disabled");
2275 return (flags & HT_MSI_FLAGS_ENABLE) != 0;
2278 pos = pci_find_next_ht_capability(dev, pos,
2279 HT_CAPTYPE_MSI_MAPPING);
2284 /* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
2285 static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
2287 if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
2288 dev_warn(&dev->dev, "MSI quirk detected; "
2289 "subordinate MSI disabled\n");
2290 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2293 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
2296 /* The nVidia CK804 chipset may have 2 HT MSI mappings.
2297 * MSI are supported if the MSI capability set in any of these mappings.
2299 static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
2301 struct pci_dev *pdev;
2303 if (!dev->subordinate)
2306 /* check HT MSI cap on this chipset and the root one.
2307 * a single one having MSI is enough to be sure that MSI are supported.
2309 pdev = pci_get_slot(dev->bus, 0);
2312 if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
2313 dev_warn(&dev->dev, "MSI quirk detected; "
2314 "subordinate MSI disabled\n");
2315 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2319 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2320 quirk_nvidia_ck804_msi_ht_cap);
2322 /* Force enable MSI mapping capability on HT bridges */
2323 static void __devinit ht_enable_msi_mapping(struct pci_dev *dev)
2327 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2328 while (pos && ttl--) {
2331 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2333 dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
2335 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2336 flags | HT_MSI_FLAGS_ENABLE);
2338 pos = pci_find_next_ht_capability(dev, pos,
2339 HT_CAPTYPE_MSI_MAPPING);
2342 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
2343 PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
2344 ht_enable_msi_mapping);
2346 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
2347 ht_enable_msi_mapping);
2349 /* The P5N32-SLI motherboards from Asus have a problem with msi
2350 * for the MCP55 NIC. It is not yet determined whether the msi problem
2351 * also affects other devices. As for now, turn off msi for this device.
2353 static void __devinit nvenet_msi_disable(struct pci_dev *dev)
2355 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
2358 (strstr(board_name, "P5N32-SLI PREMIUM") ||
2359 strstr(board_name, "P5N32-E SLI"))) {
2361 "Disabling msi for MCP55 NIC on P5N32-SLI\n");
2365 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2366 PCI_DEVICE_ID_NVIDIA_NVENET_15,
2367 nvenet_msi_disable);
2370 * Some versions of the MCP55 bridge from nvidia have a legacy irq routing
2371 * config register. This register controls the routing of legacy interrupts
2372 * from devices that route through the MCP55. If this register is misprogramed
2373 * interrupts are only sent to the bsp, unlike conventional systems where the
2374 * irq is broadxast to all online cpus. Not having this register set
2375 * properly prevents kdump from booting up properly, so lets make sure that
2376 * we have it set correctly.
2377 * Note this is an undocumented register.
2379 static void __devinit nvbridge_check_legacy_irq_routing(struct pci_dev *dev)
2383 if (!pci_find_capability(dev, PCI_CAP_ID_HT))
2386 pci_read_config_dword(dev, 0x74, &cfg);
2388 if (cfg & ((1 << 2) | (1 << 15))) {
2389 printk(KERN_INFO "Rewriting irq routing register on MCP55\n");
2390 cfg &= ~((1 << 2) | (1 << 15));
2391 pci_write_config_dword(dev, 0x74, cfg);
2395 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2396 PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V0,
2397 nvbridge_check_legacy_irq_routing);
2399 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2400 PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V4,
2401 nvbridge_check_legacy_irq_routing);
2403 static int __devinit ht_check_msi_mapping(struct pci_dev *dev)
2408 /* check if there is HT MSI cap or enabled on this device */
2409 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2410 while (pos && ttl--) {
2415 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2417 if (flags & HT_MSI_FLAGS_ENABLE) {
2424 pos = pci_find_next_ht_capability(dev, pos,
2425 HT_CAPTYPE_MSI_MAPPING);
2431 static int __devinit host_bridge_with_leaf(struct pci_dev *host_bridge)
2433 struct pci_dev *dev;
2438 dev_no = host_bridge->devfn >> 3;
2439 for (i = dev_no + 1; i < 0x20; i++) {
2440 dev = pci_get_slot(host_bridge->bus, PCI_DEVFN(i, 0));
2444 /* found next host bridge ?*/
2445 pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
2451 if (ht_check_msi_mapping(dev)) {
2462 #define PCI_HT_CAP_SLAVE_CTRL0 4 /* link control */
2463 #define PCI_HT_CAP_SLAVE_CTRL1 8 /* link control to */
2465 static int __devinit is_end_of_ht_chain(struct pci_dev *dev)
2471 pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
2476 pci_read_config_word(dev, pos + PCI_CAP_FLAGS, &flags);
2478 ctrl_off = ((flags >> 10) & 1) ?
2479 PCI_HT_CAP_SLAVE_CTRL0 : PCI_HT_CAP_SLAVE_CTRL1;
2480 pci_read_config_word(dev, pos + ctrl_off, &ctrl);
2482 if (ctrl & (1 << 6))
2489 static void __devinit nv_ht_enable_msi_mapping(struct pci_dev *dev)
2491 struct pci_dev *host_bridge;
2496 dev_no = dev->devfn >> 3;
2497 for (i = dev_no; i >= 0; i--) {
2498 host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0));
2502 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
2507 pci_dev_put(host_bridge);
2513 /* don't enable end_device/host_bridge with leaf directly here */
2514 if (host_bridge == dev && is_end_of_ht_chain(host_bridge) &&
2515 host_bridge_with_leaf(host_bridge))
2518 /* root did that ! */
2519 if (msi_ht_cap_enabled(host_bridge))
2522 ht_enable_msi_mapping(dev);
2525 pci_dev_put(host_bridge);
2528 static void __devinit ht_disable_msi_mapping(struct pci_dev *dev)
2532 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2533 while (pos && ttl--) {
2536 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2538 dev_info(&dev->dev, "Disabling HT MSI Mapping\n");
2540 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2541 flags & ~HT_MSI_FLAGS_ENABLE);
2543 pos = pci_find_next_ht_capability(dev, pos,
2544 HT_CAPTYPE_MSI_MAPPING);
2548 static void __devinit __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all)
2550 struct pci_dev *host_bridge;
2554 if (!pci_msi_enabled())
2557 /* check if there is HT MSI cap or enabled on this device */
2558 found = ht_check_msi_mapping(dev);
2565 * HT MSI mapping should be disabled on devices that are below
2566 * a non-Hypertransport host bridge. Locate the host bridge...
2568 host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
2569 if (host_bridge == NULL) {
2571 "nv_msi_ht_cap_quirk didn't locate host bridge\n");
2575 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
2577 /* Host bridge is to HT */
2579 /* it is not enabled, try to enable it */
2581 ht_enable_msi_mapping(dev);
2583 nv_ht_enable_msi_mapping(dev);
2588 /* HT MSI is not enabled */
2592 /* Host bridge is not to HT, disable HT MSI mapping on this device */
2593 ht_disable_msi_mapping(dev);
2596 static void __devinit nv_msi_ht_cap_quirk_all(struct pci_dev *dev)
2598 return __nv_msi_ht_cap_quirk(dev, 1);
2601 static void __devinit nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev)
2603 return __nv_msi_ht_cap_quirk(dev, 0);
2606 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
2607 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
2609 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
2610 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
2612 static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
2614 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2616 static void __devinit quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
2620 /* SB700 MSI issue will be fixed at HW level from revision A21,
2621 * we need check PCI REVISION ID of SMBus controller to get SB700
2624 p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
2629 if ((p->revision < 0x3B) && (p->revision >= 0x30))
2630 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2633 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2634 PCI_DEVICE_ID_TIGON3_5780,
2635 quirk_msi_intx_disable_bug);
2636 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2637 PCI_DEVICE_ID_TIGON3_5780S,
2638 quirk_msi_intx_disable_bug);
2639 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2640 PCI_DEVICE_ID_TIGON3_5714,
2641 quirk_msi_intx_disable_bug);
2642 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2643 PCI_DEVICE_ID_TIGON3_5714S,
2644 quirk_msi_intx_disable_bug);
2645 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2646 PCI_DEVICE_ID_TIGON3_5715,
2647 quirk_msi_intx_disable_bug);
2648 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2649 PCI_DEVICE_ID_TIGON3_5715S,
2650 quirk_msi_intx_disable_bug);
2652 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
2653 quirk_msi_intx_disable_ati_bug);
2654 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
2655 quirk_msi_intx_disable_ati_bug);
2656 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
2657 quirk_msi_intx_disable_ati_bug);
2658 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
2659 quirk_msi_intx_disable_ati_bug);
2660 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
2661 quirk_msi_intx_disable_ati_bug);
2663 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
2664 quirk_msi_intx_disable_bug);
2665 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
2666 quirk_msi_intx_disable_bug);
2667 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
2668 quirk_msi_intx_disable_bug);
2670 #endif /* CONFIG_PCI_MSI */
2672 /* Allow manual resource allocation for PCI hotplug bridges
2673 * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For
2674 * some PCI-PCI hotplug bridges, like PLX 6254 (former HINT HB6),
2675 * kernel fails to allocate resources when hotplug device is
2676 * inserted and PCI bus is rescanned.
2678 static void __devinit quirk_hotplug_bridge(struct pci_dev *dev)
2680 dev->is_hotplug_bridge = 1;
2683 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0020, quirk_hotplug_bridge);
2686 * This is a quirk for the Ricoh MMC controller found as a part of
2687 * some mulifunction chips.
2689 * This is very similar and based on the ricoh_mmc driver written by
2690 * Philip Langdale. Thank you for these magic sequences.
2692 * These chips implement the four main memory card controllers (SD, MMC, MS, xD)
2693 * and one or both of cardbus or firewire.
2695 * It happens that they implement SD and MMC
2696 * support as separate controllers (and PCI functions). The linux SDHCI
2697 * driver supports MMC cards but the chip detects MMC cards in hardware
2698 * and directs them to the MMC controller - so the SDHCI driver never sees
2701 * To get around this, we must disable the useless MMC controller.
2702 * At that point, the SDHCI controller will start seeing them
2703 * It seems to be the case that the relevant PCI registers to deactivate the
2704 * MMC controller live on PCI function 0, which might be the cardbus controller
2705 * or the firewire controller, depending on the particular chip in question
2707 * This has to be done early, because as soon as we disable the MMC controller
2708 * other pci functions shift up one level, e.g. function #2 becomes function
2709 * #1, and this will confuse the pci core.
2712 #ifdef CONFIG_MMC_RICOH_MMC
2713 static void ricoh_mmc_fixup_rl5c476(struct pci_dev *dev)
2715 /* disable via cardbus interface */
2720 /* disable must be done via function #0 */
2721 if (PCI_FUNC(dev->devfn))
2724 pci_read_config_byte(dev, 0xB7, &disable);
2728 pci_read_config_byte(dev, 0x8E, &write_enable);
2729 pci_write_config_byte(dev, 0x8E, 0xAA);
2730 pci_read_config_byte(dev, 0x8D, &write_target);
2731 pci_write_config_byte(dev, 0x8D, 0xB7);
2732 pci_write_config_byte(dev, 0xB7, disable | 0x02);
2733 pci_write_config_byte(dev, 0x8E, write_enable);
2734 pci_write_config_byte(dev, 0x8D, write_target);
2736 dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via cardbus function)\n");
2737 dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller\n");
2739 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476);
2740 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476);
2742 static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev)
2744 /* disable via firewire interface */
2748 /* disable must be done via function #0 */
2749 if (PCI_FUNC(dev->devfn))
2752 * RICOH 0xe822 and 0xe823 SD/MMC card readers fail to recognize
2753 * certain types of SD/MMC cards. Lowering the SD base
2754 * clock frequency from 200Mhz to 50Mhz fixes this issue.
2756 * 0x150 - SD2.0 mode enable for changing base clock
2757 * frequency to 50Mhz
2758 * 0xe1 - Base clock frequency
2759 * 0x32 - 50Mhz new clock frequency
2760 * 0xf9 - Key register for 0x150
2761 * 0xfc - key register for 0xe1
2763 if (dev->device == PCI_DEVICE_ID_RICOH_R5CE822 ||
2764 dev->device == PCI_DEVICE_ID_RICOH_R5CE823) {
2765 pci_write_config_byte(dev, 0xf9, 0xfc);
2766 pci_write_config_byte(dev, 0x150, 0x10);
2767 pci_write_config_byte(dev, 0xf9, 0x00);
2768 pci_write_config_byte(dev, 0xfc, 0x01);
2769 pci_write_config_byte(dev, 0xe1, 0x32);
2770 pci_write_config_byte(dev, 0xfc, 0x00);
2772 dev_notice(&dev->dev, "MMC controller base frequency changed to 50Mhz.\n");
2775 pci_read_config_byte(dev, 0xCB, &disable);
2780 pci_read_config_byte(dev, 0xCA, &write_enable);
2781 pci_write_config_byte(dev, 0xCA, 0x57);
2782 pci_write_config_byte(dev, 0xCB, disable | 0x02);
2783 pci_write_config_byte(dev, 0xCA, write_enable);
2785 dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via firewire function)\n");
2786 dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller\n");
2789 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
2790 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
2791 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
2792 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
2793 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
2794 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
2795 #endif /*CONFIG_MMC_RICOH_MMC*/
2797 #ifdef CONFIG_DMAR_TABLE
2798 #define VTUNCERRMSK_REG 0x1ac
2799 #define VTD_MSK_SPEC_ERRORS (1 << 31)
2801 * This is a quirk for masking vt-d spec defined errors to platform error
2802 * handling logic. With out this, platforms using Intel 7500, 5500 chipsets
2803 * (and the derivative chipsets like X58 etc) seem to generate NMI/SMI (based
2804 * on the RAS config settings of the platform) when a vt-d fault happens.
2805 * The resulting SMI caused the system to hang.
2807 * VT-d spec related errors are already handled by the VT-d OS code, so no
2808 * need to report the same error through other channels.
2810 static void vtd_mask_spec_errors(struct pci_dev *dev)
2814 pci_read_config_dword(dev, VTUNCERRMSK_REG, &word);
2815 pci_write_config_dword(dev, VTUNCERRMSK_REG, word | VTD_MSK_SPEC_ERRORS);
2817 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors);
2818 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors);
2821 static void __devinit fixup_ti816x_class(struct pci_dev* dev)
2823 /* TI 816x devices do not have class code set when in PCIe boot mode */
2824 if (dev->class == PCI_CLASS_NOT_DEFINED) {
2825 dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n");
2826 dev->class = PCI_CLASS_MULTIMEDIA_VIDEO;
2829 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_TI, 0xb800, fixup_ti816x_class);
2831 /* Some PCIe devices do not work reliably with the claimed maximum
2832 * payload size supported.
2834 static void __devinit fixup_mpss_256(struct pci_dev *dev)
2836 dev->pcie_mpss = 1; /* 256 bytes */
2838 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
2839 PCI_DEVICE_ID_SOLARFLARE_SFC4000A_0, fixup_mpss_256);
2840 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
2841 PCI_DEVICE_ID_SOLARFLARE_SFC4000A_1, fixup_mpss_256);
2842 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
2843 PCI_DEVICE_ID_SOLARFLARE_SFC4000B, fixup_mpss_256);
2845 /* Intel 5000 and 5100 Memory controllers have an errata with read completion
2846 * coalescing (which is enabled by default on some BIOSes) and MPS of 256B.
2847 * Since there is no way of knowing what the PCIE MPS on each fabric will be
2848 * until all of the devices are discovered and buses walked, read completion
2849 * coalescing must be disabled. Unfortunately, it cannot be re-enabled because
2850 * it is possible to hotplug a device with MPS of 256B.
2852 static void __devinit quirk_intel_mc_errata(struct pci_dev *dev)
2857 if (pcie_bus_config == PCIE_BUS_TUNE_OFF)
2860 /* Intel errata specifies bits to change but does not say what they are.
2861 * Keeping them magical until such time as the registers and values can
2864 err = pci_read_config_word(dev, 0x48, &rcc);
2866 dev_err(&dev->dev, "Error attempting to read the read "
2867 "completion coalescing register.\n");
2871 if (!(rcc & (1 << 10)))
2876 err = pci_write_config_word(dev, 0x48, rcc);
2878 dev_err(&dev->dev, "Error attempting to write the read "
2879 "completion coalescing register.\n");
2883 pr_info_once("Read completion coalescing disabled due to hardware "
2884 "errata relating to 256B MPS.\n");
2886 /* Intel 5000 series memory controllers and ports 2-7 */
2887 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25c0, quirk_intel_mc_errata);
2888 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d0, quirk_intel_mc_errata);
2889 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d4, quirk_intel_mc_errata);
2890 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d8, quirk_intel_mc_errata);
2891 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_mc_errata);
2892 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_mc_errata);
2893 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_mc_errata);
2894 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_mc_errata);
2895 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_mc_errata);
2896 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_mc_errata);
2897 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_mc_errata);
2898 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_mc_errata);
2899 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_mc_errata);
2900 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_mc_errata);
2901 /* Intel 5100 series memory controllers and ports 2-7 */
2902 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65c0, quirk_intel_mc_errata);
2903 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e2, quirk_intel_mc_errata);
2904 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e3, quirk_intel_mc_errata);
2905 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e4, quirk_intel_mc_errata);
2906 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e5, quirk_intel_mc_errata);
2907 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e6, quirk_intel_mc_errata);
2908 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e7, quirk_intel_mc_errata);
2909 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f7, quirk_intel_mc_errata);
2910 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f8, quirk_intel_mc_errata);
2911 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata);
2912 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata);
2915 * Some BIOS implementations leave the Intel GPU interrupts enabled,
2916 * even though no one is handling them (f.e. i915 driver is never loaded).
2917 * Additionally the interrupt destination is not set up properly
2918 * and the interrupt ends up -somewhere-.
2920 * These spurious interrupts are "sticky" and the kernel disables
2921 * the (shared) interrupt line after 100.000+ generated interrupts.
2923 * Fix it by disabling the still enabled interrupts.
2924 * This resolves crashes often seen on monitor unplug.
2926 #define I915_DEIER_REG 0x4400c
2927 static void __devinit disable_igfx_irq(struct pci_dev *dev)
2929 void __iomem *regs = pci_iomap(dev, 0, 0);
2931 dev_warn(&dev->dev, "igfx quirk: Can't iomap PCI device\n");
2935 /* Check if any interrupt line is still enabled */
2936 if (readl(regs + I915_DEIER_REG) != 0) {
2937 dev_warn(&dev->dev, "BIOS left Intel GPU interrupts enabled; "
2940 writel(0, regs + I915_DEIER_REG);
2943 pci_iounmap(dev, regs);
2945 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
2946 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
2948 static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
2949 struct pci_fixup *end)
2952 if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
2953 (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
2954 dev_dbg(&dev->dev, "calling %pF\n", f->hook);
2961 extern struct pci_fixup __start_pci_fixups_early[];
2962 extern struct pci_fixup __end_pci_fixups_early[];
2963 extern struct pci_fixup __start_pci_fixups_header[];
2964 extern struct pci_fixup __end_pci_fixups_header[];
2965 extern struct pci_fixup __start_pci_fixups_final[];
2966 extern struct pci_fixup __end_pci_fixups_final[];
2967 extern struct pci_fixup __start_pci_fixups_enable[];
2968 extern struct pci_fixup __end_pci_fixups_enable[];
2969 extern struct pci_fixup __start_pci_fixups_resume[];
2970 extern struct pci_fixup __end_pci_fixups_resume[];
2971 extern struct pci_fixup __start_pci_fixups_resume_early[];
2972 extern struct pci_fixup __end_pci_fixups_resume_early[];
2973 extern struct pci_fixup __start_pci_fixups_suspend[];
2974 extern struct pci_fixup __end_pci_fixups_suspend[];
2977 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
2979 struct pci_fixup *start, *end;
2982 case pci_fixup_early:
2983 start = __start_pci_fixups_early;
2984 end = __end_pci_fixups_early;
2987 case pci_fixup_header:
2988 start = __start_pci_fixups_header;
2989 end = __end_pci_fixups_header;
2992 case pci_fixup_final:
2993 start = __start_pci_fixups_final;
2994 end = __end_pci_fixups_final;
2997 case pci_fixup_enable:
2998 start = __start_pci_fixups_enable;
2999 end = __end_pci_fixups_enable;
3002 case pci_fixup_resume:
3003 start = __start_pci_fixups_resume;
3004 end = __end_pci_fixups_resume;
3007 case pci_fixup_resume_early:
3008 start = __start_pci_fixups_resume_early;
3009 end = __end_pci_fixups_resume_early;
3012 case pci_fixup_suspend:
3013 start = __start_pci_fixups_suspend;
3014 end = __end_pci_fixups_suspend;
3018 /* stupid compiler warning, you would think with an enum... */
3021 pci_do_fixups(dev, start, end);
3023 EXPORT_SYMBOL(pci_fixup_device);
3025 static int __init pci_apply_final_quirks(void)
3027 struct pci_dev *dev = NULL;
3031 if (pci_cache_line_size)
3032 printk(KERN_DEBUG "PCI: CLS %u bytes\n",
3033 pci_cache_line_size << 2);
3035 for_each_pci_dev(dev) {
3036 pci_fixup_device(pci_fixup_final, dev);
3038 * If arch hasn't set it explicitly yet, use the CLS
3039 * value shared by all PCI devices. If there's a
3040 * mismatch, fall back to the default value.
3042 if (!pci_cache_line_size) {
3043 pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &tmp);
3046 if (!tmp || cls == tmp)
3049 printk(KERN_DEBUG "PCI: CLS mismatch (%u != %u), "
3050 "using %u bytes\n", cls << 2, tmp << 2,
3051 pci_dfl_cache_line_size << 2);
3052 pci_cache_line_size = pci_dfl_cache_line_size;
3055 if (!pci_cache_line_size) {
3056 printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n",
3057 cls << 2, pci_dfl_cache_line_size << 2);
3058 pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size;
3064 fs_initcall_sync(pci_apply_final_quirks);
3067 * Followings are device-specific reset methods which can be used to
3068 * reset a single function if other methods (e.g. FLR, PM D0->D3) are
3071 static int reset_intel_generic_dev(struct pci_dev *dev, int probe)
3075 /* only implement PCI_CLASS_SERIAL_USB at present */
3076 if (dev->class == PCI_CLASS_SERIAL_USB) {
3077 pos = pci_find_capability(dev, PCI_CAP_ID_VNDR);
3084 pci_write_config_byte(dev, pos + 0x4, 1);
3093 static int reset_intel_82599_sfp_virtfn(struct pci_dev *dev, int probe)
3097 pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
3104 pci_write_config_word(dev, pos + PCI_EXP_DEVCTL,
3105 PCI_EXP_DEVCTL_BCR_FLR);
3111 #define PCI_DEVICE_ID_INTEL_82599_SFP_VF 0x10ed
3113 static const struct pci_dev_reset_methods pci_dev_reset_methods[] = {
3114 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82599_SFP_VF,
3115 reset_intel_82599_sfp_virtfn },
3116 { PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
3117 reset_intel_generic_dev },
3121 int pci_dev_specific_reset(struct pci_dev *dev, int probe)
3123 const struct pci_dev_reset_methods *i;
3125 for (i = pci_dev_reset_methods; i->reset; i++) {
3126 if ((i->vendor == dev->vendor ||
3127 i->vendor == (u16)PCI_ANY_ID) &&
3128 (i->device == dev->device ||
3129 i->device == (u16)PCI_ANY_ID))
3130 return i->reset(dev, probe);