Staging: dst: kconfig update.
[pohmelfs.git] / drivers / pci / quirks.c
blob9b2f0d96900def68ff56606f27e056e6d77dff7d
1 /*
2 * This file contains work-arounds for many known PCI hardware
3 * bugs. Devices present only on certain architectures (host
4 * bridges et cetera) should be handled in arch-specific code.
6 * Note: any quirks for hotpluggable devices must _NOT_ be declared __init.
8 * Copyright (c) 1999 Martin Mares <mj@ucw.cz>
10 * Init/reset quirks for USB host controllers should be in the
11 * USB quirks file, where their drivers can access reuse it.
13 * The bridge optimization stuff has been removed. If you really
14 * have a silly BIOS which is unable to set your host bridge right,
15 * use the PowerTweak utility (see http://powertweak.sourceforge.net).
18 #include <linux/types.h>
19 #include <linux/kernel.h>
20 #include <linux/pci.h>
21 #include <linux/init.h>
22 #include <linux/delay.h>
23 #include <linux/acpi.h>
24 #include <linux/kallsyms.h>
25 #include <linux/dmi.h>
26 #include <linux/pci-aspm.h>
27 #include <linux/ioport.h>
28 #include "pci.h"
30 int isa_dma_bridge_buggy;
31 EXPORT_SYMBOL(isa_dma_bridge_buggy);
32 int pci_pci_problems;
33 EXPORT_SYMBOL(pci_pci_problems);
34 int pcie_mch_quirk;
35 EXPORT_SYMBOL(pcie_mch_quirk);
37 #ifdef CONFIG_PCI_QUIRKS
39 * This quirk function disables the device and releases resources
40 * which is specified by kernel's boot parameter 'pci=resource_alignment='.
41 * It also rounds up size to specified alignment.
42 * Later on, the kernel will assign page-aligned memory resource back
43 * to that device.
45 static void __devinit quirk_resource_alignment(struct pci_dev *dev)
47 int i;
48 struct resource *r;
49 resource_size_t align, size;
51 if (!pci_is_reassigndev(dev))
52 return;
54 if (dev->hdr_type == PCI_HEADER_TYPE_NORMAL &&
55 (dev->class >> 8) == PCI_CLASS_BRIDGE_HOST) {
56 dev_warn(&dev->dev,
57 "Can't reassign resources to host bridge.\n");
58 return;
61 dev_info(&dev->dev, "Disabling device and release resources.\n");
62 pci_disable_device(dev);
64 align = pci_specified_resource_alignment(dev);
65 for (i=0; i < PCI_BRIDGE_RESOURCES; i++) {
66 r = &dev->resource[i];
67 if (!(r->flags & IORESOURCE_MEM))
68 continue;
69 size = resource_size(r);
70 if (size < align) {
71 size = align;
72 dev_info(&dev->dev,
73 "Rounding up size of resource #%d to %#llx.\n",
74 i, (unsigned long long)size);
76 r->end = size - 1;
77 r->start = 0;
79 /* Need to disable bridge's resource window,
80 * to enable the kernel to reassign new resource
81 * window later on.
83 if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE &&
84 (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
85 for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
86 r = &dev->resource[i];
87 if (!(r->flags & IORESOURCE_MEM))
88 continue;
89 r->end = resource_size(r) - 1;
90 r->start = 0;
92 pci_disable_bridge_window(dev);
95 DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, quirk_resource_alignment);
97 /* The Mellanox Tavor device gives false positive parity errors
98 * Mark this device with a broken_parity_status, to allow
99 * PCI scanning code to "skip" this now blacklisted device.
101 static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
103 dev->broken_parity_status = 1; /* This device gives false positives */
105 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
106 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
108 /* Deal with broken BIOS'es that neglect to enable passive release,
109 which can cause problems in combination with the 82441FX/PPro MTRRs */
110 static void quirk_passive_release(struct pci_dev *dev)
112 struct pci_dev *d = NULL;
113 unsigned char dlc;
115 /* We have to make sure a particular bit is set in the PIIX3
116 ISA bridge, so we have to go out and find it. */
117 while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
118 pci_read_config_byte(d, 0x82, &dlc);
119 if (!(dlc & 1<<1)) {
120 dev_info(&d->dev, "PIIX3: Enabling Passive Release\n");
121 dlc |= 1<<1;
122 pci_write_config_byte(d, 0x82, dlc);
126 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
127 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
129 /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
130 but VIA don't answer queries. If you happen to have good contacts at VIA
131 ask them for me please -- Alan
133 This appears to be BIOS not version dependent. So presumably there is a
134 chipset level fix */
136 static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
138 if (!isa_dma_bridge_buggy) {
139 isa_dma_bridge_buggy=1;
140 dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n");
144 * Its not totally clear which chipsets are the problematic ones
145 * We know 82C586 and 82C596 variants are affected.
147 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs);
148 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs);
149 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs);
150 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs);
151 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs);
152 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs);
153 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs);
156 * Chipsets where PCI->PCI transfers vanish or hang
158 static void __devinit quirk_nopcipci(struct pci_dev *dev)
160 if ((pci_pci_problems & PCIPCI_FAIL)==0) {
161 dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n");
162 pci_pci_problems |= PCIPCI_FAIL;
165 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci);
166 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci);
168 static void __devinit quirk_nopciamd(struct pci_dev *dev)
170 u8 rev;
171 pci_read_config_byte(dev, 0x08, &rev);
172 if (rev == 0x13) {
173 /* Erratum 24 */
174 dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n");
175 pci_pci_problems |= PCIAGP_FAIL;
178 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
181 * Triton requires workarounds to be used by the drivers
183 static void __devinit quirk_triton(struct pci_dev *dev)
185 if ((pci_pci_problems&PCIPCI_TRITON)==0) {
186 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
187 pci_pci_problems |= PCIPCI_TRITON;
190 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton);
191 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton);
192 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton);
193 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton);
196 * VIA Apollo KT133 needs PCI latency patch
197 * Made according to a windows driver based patch by George E. Breese
198 * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
199 * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
200 * the info on which Mr Breese based his work.
202 * Updated based on further information from the site and also on
203 * information provided by VIA
205 static void quirk_vialatency(struct pci_dev *dev)
207 struct pci_dev *p;
208 u8 busarb;
209 /* Ok we have a potential problem chipset here. Now see if we have
210 a buggy southbridge */
212 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
213 if (p!=NULL) {
214 /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
215 /* Check for buggy part revisions */
216 if (p->revision < 0x40 || p->revision > 0x42)
217 goto exit;
218 } else {
219 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
220 if (p==NULL) /* No problem parts */
221 goto exit;
222 /* Check for buggy part revisions */
223 if (p->revision < 0x10 || p->revision > 0x12)
224 goto exit;
228 * Ok we have the problem. Now set the PCI master grant to
229 * occur every master grant. The apparent bug is that under high
230 * PCI load (quite common in Linux of course) you can get data
231 * loss when the CPU is held off the bus for 3 bus master requests
232 * This happens to include the IDE controllers....
234 * VIA only apply this fix when an SB Live! is present but under
235 * both Linux and Windows this isnt enough, and we have seen
236 * corruption without SB Live! but with things like 3 UDMA IDE
237 * controllers. So we ignore that bit of the VIA recommendation..
240 pci_read_config_byte(dev, 0x76, &busarb);
241 /* Set bit 4 and bi 5 of byte 76 to 0x01
242 "Master priority rotation on every PCI master grant */
243 busarb &= ~(1<<5);
244 busarb |= (1<<4);
245 pci_write_config_byte(dev, 0x76, busarb);
246 dev_info(&dev->dev, "Applying VIA southbridge workaround\n");
247 exit:
248 pci_dev_put(p);
250 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
251 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
252 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
253 /* Must restore this on a resume from RAM */
254 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
255 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
256 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
259 * VIA Apollo VP3 needs ETBF on BT848/878
261 static void __devinit quirk_viaetbf(struct pci_dev *dev)
263 if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
264 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
265 pci_pci_problems |= PCIPCI_VIAETBF;
268 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf);
270 static void __devinit quirk_vsfx(struct pci_dev *dev)
272 if ((pci_pci_problems&PCIPCI_VSFX)==0) {
273 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
274 pci_pci_problems |= PCIPCI_VSFX;
277 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx);
280 * Ali Magik requires workarounds to be used by the drivers
281 * that DMA to AGP space. Latency must be set to 0xA and triton
282 * workaround applied too
283 * [Info kindly provided by ALi]
285 static void __init quirk_alimagik(struct pci_dev *dev)
287 if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
288 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
289 pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
292 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik);
293 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik);
296 * Natoma has some interesting boundary conditions with Zoran stuff
297 * at least
299 static void __devinit quirk_natoma(struct pci_dev *dev)
301 if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
302 dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
303 pci_pci_problems |= PCIPCI_NATOMA;
306 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma);
307 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma);
308 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma);
309 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma);
310 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma);
311 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma);
314 * This chip can cause PCI parity errors if config register 0xA0 is read
315 * while DMAs are occurring.
317 static void __devinit quirk_citrine(struct pci_dev *dev)
319 dev->cfg_size = 0xA0;
321 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine);
324 * S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
325 * If it's needed, re-allocate the region.
327 static void __devinit quirk_s3_64M(struct pci_dev *dev)
329 struct resource *r = &dev->resource[0];
331 if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
332 r->start = 0;
333 r->end = 0x3ffffff;
336 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M);
337 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M);
339 static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
340 unsigned size, int nr, const char *name)
342 region &= ~(size-1);
343 if (region) {
344 struct pci_bus_region bus_region;
345 struct resource *res = dev->resource + nr;
347 res->name = pci_name(dev);
348 res->start = region;
349 res->end = region + size - 1;
350 res->flags = IORESOURCE_IO;
352 /* Convert from PCI bus to resource space. */
353 bus_region.start = res->start;
354 bus_region.end = res->end;
355 pcibios_bus_to_resource(dev, res, &bus_region);
357 pci_claim_resource(dev, nr);
358 dev_info(&dev->dev, "quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
363 * ATI Northbridge setups MCE the processor if you even
364 * read somewhere between 0x3b0->0x3bb or read 0x3d3
366 static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
368 dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
369 /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
370 request_region(0x3b0, 0x0C, "RadeonIGP");
371 request_region(0x3d3, 0x01, "RadeonIGP");
373 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce);
376 * Let's make the southbridge information explicit instead
377 * of having to worry about people probing the ACPI areas,
378 * for example.. (Yes, it happens, and if you read the wrong
379 * ACPI register it will put the machine to sleep with no
380 * way of waking it up again. Bummer).
382 * ALI M7101: Two IO regions pointed to by words at
383 * 0xE0 (64 bytes of ACPI registers)
384 * 0xE2 (32 bytes of SMB registers)
386 static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
388 u16 region;
390 pci_read_config_word(dev, 0xE0, &region);
391 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
392 pci_read_config_word(dev, 0xE2, &region);
393 quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
395 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi);
397 static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
399 u32 devres;
400 u32 mask, size, base;
402 pci_read_config_dword(dev, port, &devres);
403 if ((devres & enable) != enable)
404 return;
405 mask = (devres >> 16) & 15;
406 base = devres & 0xffff;
407 size = 16;
408 for (;;) {
409 unsigned bit = size >> 1;
410 if ((bit & mask) == bit)
411 break;
412 size = bit;
415 * For now we only print it out. Eventually we'll want to
416 * reserve it (at least if it's in the 0x1000+ range), but
417 * let's get enough confirmation reports first.
419 base &= -size;
420 dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
423 static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
425 u32 devres;
426 u32 mask, size, base;
428 pci_read_config_dword(dev, port, &devres);
429 if ((devres & enable) != enable)
430 return;
431 base = devres & 0xffff0000;
432 mask = (devres & 0x3f) << 16;
433 size = 128 << 16;
434 for (;;) {
435 unsigned bit = size >> 1;
436 if ((bit & mask) == bit)
437 break;
438 size = bit;
441 * For now we only print it out. Eventually we'll want to
442 * reserve it, but let's get enough confirmation reports first.
444 base &= -size;
445 dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
449 * PIIX4 ACPI: Two IO regions pointed to by longwords at
450 * 0x40 (64 bytes of ACPI registers)
451 * 0x90 (16 bytes of SMB registers)
452 * and a few strange programmable PIIX4 device resources.
454 static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
456 u32 region, res_a;
458 pci_read_config_dword(dev, 0x40, &region);
459 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
460 pci_read_config_dword(dev, 0x90, &region);
461 quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
463 /* Device resource A has enables for some of the other ones */
464 pci_read_config_dword(dev, 0x5c, &res_a);
466 piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
467 piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
469 /* Device resource D is just bitfields for static resources */
471 /* Device 12 enabled? */
472 if (res_a & (1 << 29)) {
473 piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
474 piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
476 /* Device 13 enabled? */
477 if (res_a & (1 << 30)) {
478 piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
479 piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
481 piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
482 piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
484 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi);
485 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi);
488 * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
489 * 0x40 (128 bytes of ACPI, GPIO & TCO registers)
490 * 0x58 (64 bytes of GPIO I/O space)
492 static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
494 u32 region;
496 pci_read_config_dword(dev, 0x40, &region);
497 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO");
499 pci_read_config_dword(dev, 0x58, &region);
500 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO");
502 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi);
503 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi);
504 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi);
505 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi);
506 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi);
507 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi);
508 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi);
509 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi);
510 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
511 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
513 static void __devinit ich6_lpc_acpi_gpio(struct pci_dev *dev)
515 u32 region;
517 pci_read_config_dword(dev, 0x40, &region);
518 quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH6 ACPI/GPIO/TCO");
520 pci_read_config_dword(dev, 0x48, &region);
521 quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO");
524 static void __devinit ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize)
526 u32 val;
527 u32 size, base;
529 pci_read_config_dword(dev, reg, &val);
531 /* Enabled? */
532 if (!(val & 1))
533 return;
534 base = val & 0xfffc;
535 if (dynsize) {
537 * This is not correct. It is 16, 32 or 64 bytes depending on
538 * register D31:F0:ADh bits 5:4.
540 * But this gets us at least _part_ of it.
542 size = 16;
543 } else {
544 size = 128;
546 base &= ~(size-1);
548 /* Just print it out for now. We should reserve it after more debugging */
549 dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base+size-1);
552 static void __devinit quirk_ich6_lpc(struct pci_dev *dev)
554 /* Shared ACPI/GPIO decode with all ICH6+ */
555 ich6_lpc_acpi_gpio(dev);
557 /* ICH6-specific generic IO decode */
558 ich6_lpc_generic_decode(dev, 0x84, "LPC Generic IO decode 1", 0);
559 ich6_lpc_generic_decode(dev, 0x88, "LPC Generic IO decode 2", 1);
561 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc);
562 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc);
564 static void __devinit ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name)
566 u32 val;
567 u32 mask, base;
569 pci_read_config_dword(dev, reg, &val);
571 /* Enabled? */
572 if (!(val & 1))
573 return;
576 * IO base in bits 15:2, mask in bits 23:18, both
577 * are dword-based
579 base = val & 0xfffc;
580 mask = (val >> 16) & 0xfc;
581 mask |= 3;
583 /* Just print it out for now. We should reserve it after more debugging */
584 dev_info(&dev->dev, "%s PIO at %04x (mask %04x)\n", name, base, mask);
587 /* ICH7-10 has the same common LPC generic IO decode registers */
588 static void __devinit quirk_ich7_lpc(struct pci_dev *dev)
590 /* We share the common ACPI/DPIO decode with ICH6 */
591 ich6_lpc_acpi_gpio(dev);
593 /* And have 4 ICH7+ generic decodes */
594 ich7_lpc_generic_decode(dev, 0x84, "ICH7 LPC Generic IO decode 1");
595 ich7_lpc_generic_decode(dev, 0x88, "ICH7 LPC Generic IO decode 2");
596 ich7_lpc_generic_decode(dev, 0x8c, "ICH7 LPC Generic IO decode 3");
597 ich7_lpc_generic_decode(dev, 0x90, "ICH7 LPC Generic IO decode 4");
599 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich7_lpc);
600 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich7_lpc);
601 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich7_lpc);
602 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich7_lpc);
603 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich7_lpc);
604 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich7_lpc);
605 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich7_lpc);
606 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich7_lpc);
607 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich7_lpc);
608 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich7_lpc);
609 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich7_lpc);
610 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich7_lpc);
611 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1, quirk_ich7_lpc);
614 * VIA ACPI: One IO region pointed to by longword at
615 * 0x48 or 0x20 (256 bytes of ACPI registers)
617 static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
619 u32 region;
621 if (dev->revision & 0x10) {
622 pci_read_config_dword(dev, 0x48, &region);
623 region &= PCI_BASE_ADDRESS_IO_MASK;
624 quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
627 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi);
630 * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
631 * 0x48 (256 bytes of ACPI registers)
632 * 0x70 (128 bytes of hardware monitoring register)
633 * 0x90 (16 bytes of SMB registers)
635 static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
637 u16 hm;
638 u32 smb;
640 quirk_vt82c586_acpi(dev);
642 pci_read_config_word(dev, 0x70, &hm);
643 hm &= PCI_BASE_ADDRESS_IO_MASK;
644 quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
646 pci_read_config_dword(dev, 0x90, &smb);
647 smb &= PCI_BASE_ADDRESS_IO_MASK;
648 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
650 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi);
653 * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
654 * 0x88 (128 bytes of power management registers)
655 * 0xd0 (16 bytes of SMB registers)
657 static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
659 u16 pm, smb;
661 pci_read_config_word(dev, 0x88, &pm);
662 pm &= PCI_BASE_ADDRESS_IO_MASK;
663 quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
665 pci_read_config_word(dev, 0xd0, &smb);
666 smb &= PCI_BASE_ADDRESS_IO_MASK;
667 quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
669 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
672 #ifdef CONFIG_X86_IO_APIC
674 #include <asm/io_apic.h>
677 * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
678 * devices to the external APIC.
680 * TODO: When we have device-specific interrupt routers,
681 * this code will go away from quirks.
683 static void quirk_via_ioapic(struct pci_dev *dev)
685 u8 tmp;
687 if (nr_ioapics < 1)
688 tmp = 0; /* nothing routed to external APIC */
689 else
690 tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
692 dev_info(&dev->dev, "%sbling VIA external APIC routing\n",
693 tmp == 0 ? "Disa" : "Ena");
695 /* Offset 0x58: External APIC IRQ output control */
696 pci_write_config_byte (dev, 0x58, tmp);
698 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
699 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
702 * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
703 * This leads to doubled level interrupt rates.
704 * Set this bit to get rid of cycle wastage.
705 * Otherwise uncritical.
707 static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
709 u8 misc_control2;
710 #define BYPASS_APIC_DEASSERT 8
712 pci_read_config_byte(dev, 0x5B, &misc_control2);
713 if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
714 dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
715 pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
718 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
719 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
722 * The AMD io apic can hang the box when an apic irq is masked.
723 * We check all revs >= B0 (yet not in the pre production!) as the bug
724 * is currently marked NoFix
726 * We have multiple reports of hangs with this chipset that went away with
727 * noapic specified. For the moment we assume it's the erratum. We may be wrong
728 * of course. However the advice is demonstrably good even if so..
730 static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
732 if (dev->revision >= 0x02) {
733 dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
734 dev_warn(&dev->dev, " : booting with the \"noapic\" option\n");
737 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
739 static void __init quirk_ioapic_rmw(struct pci_dev *dev)
741 if (dev->devfn == 0 && dev->bus->number == 0)
742 sis_apic_bug = 1;
744 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw);
745 #endif /* CONFIG_X86_IO_APIC */
748 * Some settings of MMRBC can lead to data corruption so block changes.
749 * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
751 static void __init quirk_amd_8131_mmrbc(struct pci_dev *dev)
753 if (dev->subordinate && dev->revision <= 0x12) {
754 dev_info(&dev->dev, "AMD8131 rev %x detected; "
755 "disabling PCI-X MMRBC\n", dev->revision);
756 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
759 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
762 * FIXME: it is questionable that quirk_via_acpi
763 * is needed. It shows up as an ISA bridge, and does not
764 * support the PCI_INTERRUPT_LINE register at all. Therefore
765 * it seems like setting the pci_dev's 'irq' to the
766 * value of the ACPI SCI interrupt is only done for convenience.
767 * -jgarzik
769 static void __devinit quirk_via_acpi(struct pci_dev *d)
772 * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
774 u8 irq;
775 pci_read_config_byte(d, 0x42, &irq);
776 irq &= 0xf;
777 if (irq && (irq != 2))
778 d->irq = irq;
780 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi);
781 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi);
785 * VIA bridges which have VLink
788 static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
790 static void quirk_via_bridge(struct pci_dev *dev)
792 /* See what bridge we have and find the device ranges */
793 switch (dev->device) {
794 case PCI_DEVICE_ID_VIA_82C686:
795 /* The VT82C686 is special, it attaches to PCI and can have
796 any device number. All its subdevices are functions of
797 that single device. */
798 via_vlink_dev_lo = PCI_SLOT(dev->devfn);
799 via_vlink_dev_hi = PCI_SLOT(dev->devfn);
800 break;
801 case PCI_DEVICE_ID_VIA_8237:
802 case PCI_DEVICE_ID_VIA_8237A:
803 via_vlink_dev_lo = 15;
804 break;
805 case PCI_DEVICE_ID_VIA_8235:
806 via_vlink_dev_lo = 16;
807 break;
808 case PCI_DEVICE_ID_VIA_8231:
809 case PCI_DEVICE_ID_VIA_8233_0:
810 case PCI_DEVICE_ID_VIA_8233A:
811 case PCI_DEVICE_ID_VIA_8233C_0:
812 via_vlink_dev_lo = 17;
813 break;
816 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
817 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
818 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
819 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
820 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
821 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
822 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
823 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
826 * quirk_via_vlink - VIA VLink IRQ number update
827 * @dev: PCI device
829 * If the device we are dealing with is on a PIC IRQ we need to
830 * ensure that the IRQ line register which usually is not relevant
831 * for PCI cards, is actually written so that interrupts get sent
832 * to the right place.
833 * We only do this on systems where a VIA south bridge was detected,
834 * and only for VIA devices on the motherboard (see quirk_via_bridge
835 * above).
838 static void quirk_via_vlink(struct pci_dev *dev)
840 u8 irq, new_irq;
842 /* Check if we have VLink at all */
843 if (via_vlink_dev_lo == -1)
844 return;
846 new_irq = dev->irq;
848 /* Don't quirk interrupts outside the legacy IRQ range */
849 if (!new_irq || new_irq > 15)
850 return;
852 /* Internal device ? */
853 if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
854 PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
855 return;
857 /* This is an internal VLink device on a PIC interrupt. The BIOS
858 ought to have set this but may not have, so we redo it */
860 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
861 if (new_irq != irq) {
862 dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n",
863 irq, new_irq);
864 udelay(15); /* unknown if delay really needed */
865 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
868 DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
871 * VIA VT82C598 has its device ID settable and many BIOSes
872 * set it to the ID of VT82C597 for backward compatibility.
873 * We need to switch it off to be able to recognize the real
874 * type of the chip.
876 static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
878 pci_write_config_byte(dev, 0xfc, 0);
879 pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
881 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id);
884 * CardBus controllers have a legacy base address that enables them
885 * to respond as i82365 pcmcia controllers. We don't want them to
886 * do this even if the Linux CardBus driver is not loaded, because
887 * the Linux i82365 driver does not (and should not) handle CardBus.
889 static void quirk_cardbus_legacy(struct pci_dev *dev)
891 if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
892 return;
893 pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
895 DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
896 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
899 * Following the PCI ordering rules is optional on the AMD762. I'm not
900 * sure what the designers were smoking but let's not inhale...
902 * To be fair to AMD, it follows the spec by default, its BIOS people
903 * who turn it off!
905 static void quirk_amd_ordering(struct pci_dev *dev)
907 u32 pcic;
908 pci_read_config_dword(dev, 0x4C, &pcic);
909 if ((pcic&6)!=6) {
910 pcic |= 6;
911 dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n");
912 pci_write_config_dword(dev, 0x4C, pcic);
913 pci_read_config_dword(dev, 0x84, &pcic);
914 pcic |= (1<<23); /* Required in this mode */
915 pci_write_config_dword(dev, 0x84, pcic);
918 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
919 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
922 * DreamWorks provided workaround for Dunord I-3000 problem
924 * This card decodes and responds to addresses not apparently
925 * assigned to it. We force a larger allocation to ensure that
926 * nothing gets put too close to it.
928 static void __devinit quirk_dunord ( struct pci_dev * dev )
930 struct resource *r = &dev->resource [1];
931 r->start = 0;
932 r->end = 0xffffff;
934 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord);
937 * i82380FB mobile docking controller: its PCI-to-PCI bridge
938 * is subtractive decoding (transparent), and does indicate this
939 * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
940 * instead of 0x01.
942 static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
944 dev->transparent = 1;
946 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge);
947 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge);
950 * Common misconfiguration of the MediaGX/Geode PCI master that will
951 * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
952 * datasheets found at http://www.national.com/ds/GX for info on what
953 * these bits do. <christer@weinigel.se>
955 static void quirk_mediagx_master(struct pci_dev *dev)
957 u8 reg;
958 pci_read_config_byte(dev, 0x41, &reg);
959 if (reg & 2) {
960 reg &= ~2;
961 dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
962 pci_write_config_byte(dev, 0x41, reg);
965 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
966 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
969 * Ensure C0 rev restreaming is off. This is normally done by
970 * the BIOS but in the odd case it is not the results are corruption
971 * hence the presence of a Linux check
973 static void quirk_disable_pxb(struct pci_dev *pdev)
975 u16 config;
977 if (pdev->revision != 0x04) /* Only C0 requires this */
978 return;
979 pci_read_config_word(pdev, 0x40, &config);
980 if (config & (1<<6)) {
981 config &= ~(1<<6);
982 pci_write_config_word(pdev, 0x40, config);
983 dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n");
986 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
987 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
989 static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
991 /* set sb600/sb700/sb800 sata to ahci mode */
992 u8 tmp;
994 pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
995 if (tmp == 0x01) {
996 pci_read_config_byte(pdev, 0x40, &tmp);
997 pci_write_config_byte(pdev, 0x40, tmp|1);
998 pci_write_config_byte(pdev, 0x9, 1);
999 pci_write_config_byte(pdev, 0xa, 6);
1000 pci_write_config_byte(pdev, 0x40, tmp);
1002 pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
1003 dev_info(&pdev->dev, "set SATA to AHCI mode\n");
1006 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
1007 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
1008 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
1009 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
1012 * Serverworks CSB5 IDE does not fully support native mode
1014 static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
1016 u8 prog;
1017 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
1018 if (prog & 5) {
1019 prog &= ~5;
1020 pdev->class &= ~5;
1021 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
1022 /* PCI layer will sort out resources */
1025 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
1028 * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
1030 static void __init quirk_ide_samemode(struct pci_dev *pdev)
1032 u8 prog;
1034 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
1036 if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
1037 dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n");
1038 prog &= ~5;
1039 pdev->class &= ~5;
1040 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
1043 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
1046 * Some ATA devices break if put into D3
1049 static void __devinit quirk_no_ata_d3(struct pci_dev *pdev)
1051 /* Quirk the legacy ATA devices only. The AHCI ones are ok */
1052 if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE)
1053 pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
1055 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, quirk_no_ata_d3);
1056 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_no_ata_d3);
1058 /* This was originally an Alpha specific thing, but it really fits here.
1059 * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
1061 static void __init quirk_eisa_bridge(struct pci_dev *dev)
1063 dev->class = PCI_CLASS_BRIDGE_EISA << 8;
1065 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge);
1069 * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
1070 * is not activated. The myth is that Asus said that they do not want the
1071 * users to be irritated by just another PCI Device in the Win98 device
1072 * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
1073 * package 2.7.0 for details)
1075 * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
1076 * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
1077 * becomes necessary to do this tweak in two steps -- the chosen trigger
1078 * is either the Host bridge (preferred) or on-board VGA controller.
1080 * Note that we used to unhide the SMBus that way on Toshiba laptops
1081 * (Satellite A40 and Tecra M2) but then found that the thermal management
1082 * was done by SMM code, which could cause unsynchronized concurrent
1083 * accesses to the SMBus registers, with potentially bad effects. Thus you
1084 * should be very careful when adding new entries: if SMM is accessing the
1085 * Intel SMBus, this is a very good reason to leave it hidden.
1087 * Likewise, many recent laptops use ACPI for thermal management. If the
1088 * ACPI DSDT code accesses the SMBus, then Linux should not access it
1089 * natively, and keeping the SMBus hidden is the right thing to do. If you
1090 * are about to add an entry in the table below, please first disassemble
1091 * the DSDT and double-check that there is no code accessing the SMBus.
1093 static int asus_hides_smbus;
1095 static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
1097 if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1098 if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
1099 switch(dev->subsystem_device) {
1100 case 0x8025: /* P4B-LX */
1101 case 0x8070: /* P4B */
1102 case 0x8088: /* P4B533 */
1103 case 0x1626: /* L3C notebook */
1104 asus_hides_smbus = 1;
1106 else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
1107 switch(dev->subsystem_device) {
1108 case 0x80b1: /* P4GE-V */
1109 case 0x80b2: /* P4PE */
1110 case 0x8093: /* P4B533-V */
1111 asus_hides_smbus = 1;
1113 else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
1114 switch(dev->subsystem_device) {
1115 case 0x8030: /* P4T533 */
1116 asus_hides_smbus = 1;
1118 else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
1119 switch (dev->subsystem_device) {
1120 case 0x8070: /* P4G8X Deluxe */
1121 asus_hides_smbus = 1;
1123 else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
1124 switch (dev->subsystem_device) {
1125 case 0x80c9: /* PU-DLS */
1126 asus_hides_smbus = 1;
1128 else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
1129 switch (dev->subsystem_device) {
1130 case 0x1751: /* M2N notebook */
1131 case 0x1821: /* M5N notebook */
1132 asus_hides_smbus = 1;
1134 else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1135 switch (dev->subsystem_device) {
1136 case 0x184b: /* W1N notebook */
1137 case 0x186a: /* M6Ne notebook */
1138 asus_hides_smbus = 1;
1140 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
1141 switch (dev->subsystem_device) {
1142 case 0x80f2: /* P4P800-X */
1143 asus_hides_smbus = 1;
1145 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
1146 switch (dev->subsystem_device) {
1147 case 0x1882: /* M6V notebook */
1148 case 0x1977: /* A6VA notebook */
1149 asus_hides_smbus = 1;
1151 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
1152 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1153 switch(dev->subsystem_device) {
1154 case 0x088C: /* HP Compaq nc8000 */
1155 case 0x0890: /* HP Compaq nc6000 */
1156 asus_hides_smbus = 1;
1158 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
1159 switch (dev->subsystem_device) {
1160 case 0x12bc: /* HP D330L */
1161 case 0x12bd: /* HP D530 */
1162 asus_hides_smbus = 1;
1164 else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
1165 switch (dev->subsystem_device) {
1166 case 0x12bf: /* HP xw4100 */
1167 asus_hides_smbus = 1;
1169 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
1170 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1171 switch(dev->subsystem_device) {
1172 case 0xC00C: /* Samsung P35 notebook */
1173 asus_hides_smbus = 1;
1175 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
1176 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1177 switch(dev->subsystem_device) {
1178 case 0x0058: /* Compaq Evo N620c */
1179 asus_hides_smbus = 1;
1181 else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
1182 switch(dev->subsystem_device) {
1183 case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
1184 /* Motherboard doesn't have Host bridge
1185 * subvendor/subdevice IDs, therefore checking
1186 * its on-board VGA controller */
1187 asus_hides_smbus = 1;
1189 else if (dev->device == PCI_DEVICE_ID_INTEL_82801DB_2)
1190 switch(dev->subsystem_device) {
1191 case 0x00b8: /* Compaq Evo D510 CMT */
1192 case 0x00b9: /* Compaq Evo D510 SFF */
1193 /* Motherboard doesn't have Host bridge
1194 * subvendor/subdevice IDs and on-board VGA
1195 * controller is disabled if an AGP card is
1196 * inserted, therefore checking USB UHCI
1197 * Controller #1 */
1198 asus_hides_smbus = 1;
1200 else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC)
1201 switch (dev->subsystem_device) {
1202 case 0x001A: /* Compaq Deskpro EN SSF P667 815E */
1203 /* Motherboard doesn't have host bridge
1204 * subvendor/subdevice IDs, therefore checking
1205 * its on-board VGA controller */
1206 asus_hides_smbus = 1;
1210 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge);
1211 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge);
1212 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge);
1213 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge);
1214 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge);
1215 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge);
1216 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge);
1217 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge);
1218 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge);
1219 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
1221 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge);
1222 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_2, asus_hides_smbus_hostbridge);
1223 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge);
1225 static void asus_hides_smbus_lpc(struct pci_dev *dev)
1227 u16 val;
1229 if (likely(!asus_hides_smbus))
1230 return;
1232 pci_read_config_word(dev, 0xF2, &val);
1233 if (val & 0x8) {
1234 pci_write_config_word(dev, 0xF2, val & (~0x8));
1235 pci_read_config_word(dev, 0xF2, &val);
1236 if (val & 0x8)
1237 dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
1238 else
1239 dev_info(&dev->dev, "Enabled i801 SMBus device\n");
1242 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1243 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1244 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1245 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1246 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1247 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1248 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
1249 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1250 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1251 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1252 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1253 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1254 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1255 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
1257 /* It appears we just have one such device. If not, we have a warning */
1258 static void __iomem *asus_rcba_base;
1259 static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev)
1261 u32 rcba;
1263 if (likely(!asus_hides_smbus))
1264 return;
1265 WARN_ON(asus_rcba_base);
1267 pci_read_config_dword(dev, 0xF0, &rcba);
1268 /* use bits 31:14, 16 kB aligned */
1269 asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000);
1270 if (asus_rcba_base == NULL)
1271 return;
1274 static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev)
1276 u32 val;
1278 if (likely(!asus_hides_smbus || !asus_rcba_base))
1279 return;
1280 /* read the Function Disable register, dword mode only */
1281 val = readl(asus_rcba_base + 0x3418);
1282 writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */
1285 static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev)
1287 if (likely(!asus_hides_smbus || !asus_rcba_base))
1288 return;
1289 iounmap(asus_rcba_base);
1290 asus_rcba_base = NULL;
1291 dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n");
1294 static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
1296 asus_hides_smbus_lpc_ich6_suspend(dev);
1297 asus_hides_smbus_lpc_ich6_resume_early(dev);
1298 asus_hides_smbus_lpc_ich6_resume(dev);
1300 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6);
1301 DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend);
1302 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume);
1303 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early);
1306 * SiS 96x south bridge: BIOS typically hides SMBus device...
1308 static void quirk_sis_96x_smbus(struct pci_dev *dev)
1310 u8 val = 0;
1311 pci_read_config_byte(dev, 0x77, &val);
1312 if (val & 0x10) {
1313 dev_info(&dev->dev, "Enabling SiS 96x SMBus\n");
1314 pci_write_config_byte(dev, 0x77, val & ~0x10);
1317 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1318 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1319 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1320 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
1321 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1322 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1323 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1324 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
1327 * ... This is further complicated by the fact that some SiS96x south
1328 * bridges pretend to be 85C503/5513 instead. In that case see if we
1329 * spotted a compatible north bridge to make sure.
1330 * (pci_find_device doesn't work yet)
1332 * We can also enable the sis96x bit in the discovery register..
1334 #define SIS_DETECT_REGISTER 0x40
1336 static void quirk_sis_503(struct pci_dev *dev)
1338 u8 reg;
1339 u16 devid;
1341 pci_read_config_byte(dev, SIS_DETECT_REGISTER, &reg);
1342 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
1343 pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
1344 if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
1345 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
1346 return;
1350 * Ok, it now shows up as a 96x.. run the 96x quirk by
1351 * hand in case it has already been processed.
1352 * (depends on link order, which is apparently not guaranteed)
1354 dev->device = devid;
1355 quirk_sis_96x_smbus(dev);
1357 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
1358 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
1362 * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
1363 * and MC97 modem controller are disabled when a second PCI soundcard is
1364 * present. This patch, tweaking the VT8237 ISA bridge, enables them.
1365 * -- bjd
1367 static void asus_hides_ac97_lpc(struct pci_dev *dev)
1369 u8 val;
1370 int asus_hides_ac97 = 0;
1372 if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1373 if (dev->device == PCI_DEVICE_ID_VIA_8237)
1374 asus_hides_ac97 = 1;
1377 if (!asus_hides_ac97)
1378 return;
1380 pci_read_config_byte(dev, 0x50, &val);
1381 if (val & 0xc0) {
1382 pci_write_config_byte(dev, 0x50, val & (~0xc0));
1383 pci_read_config_byte(dev, 0x50, &val);
1384 if (val & 0xc0)
1385 dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
1386 else
1387 dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n");
1390 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
1391 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
1393 #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
1396 * If we are using libata we can drive this chip properly but must
1397 * do this early on to make the additional device appear during
1398 * the PCI scanning.
1400 static void quirk_jmicron_ata(struct pci_dev *pdev)
1402 u32 conf1, conf5, class;
1403 u8 hdr;
1405 /* Only poke fn 0 */
1406 if (PCI_FUNC(pdev->devfn))
1407 return;
1409 pci_read_config_dword(pdev, 0x40, &conf1);
1410 pci_read_config_dword(pdev, 0x80, &conf5);
1412 conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
1413 conf5 &= ~(1 << 24); /* Clear bit 24 */
1415 switch (pdev->device) {
1416 case PCI_DEVICE_ID_JMICRON_JMB360:
1417 /* The controller should be in single function ahci mode */
1418 conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
1419 break;
1421 case PCI_DEVICE_ID_JMICRON_JMB365:
1422 case PCI_DEVICE_ID_JMICRON_JMB366:
1423 /* Redirect IDE second PATA port to the right spot */
1424 conf5 |= (1 << 24);
1425 /* Fall through */
1426 case PCI_DEVICE_ID_JMICRON_JMB361:
1427 case PCI_DEVICE_ID_JMICRON_JMB363:
1428 /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
1429 /* Set the class codes correctly and then direct IDE 0 */
1430 conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
1431 break;
1433 case PCI_DEVICE_ID_JMICRON_JMB368:
1434 /* The controller should be in single function IDE mode */
1435 conf1 |= 0x00C00000; /* Set 22, 23 */
1436 break;
1439 pci_write_config_dword(pdev, 0x40, conf1);
1440 pci_write_config_dword(pdev, 0x80, conf5);
1442 /* Update pdev accordingly */
1443 pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
1444 pdev->hdr_type = hdr & 0x7f;
1445 pdev->multifunction = !!(hdr & 0x80);
1447 pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
1448 pdev->class = class >> 8;
1450 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1451 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1452 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1453 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1454 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1455 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1456 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1457 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1458 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1459 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1460 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1461 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1463 #endif
1465 #ifdef CONFIG_X86_IO_APIC
1466 static void __init quirk_alder_ioapic(struct pci_dev *pdev)
1468 int i;
1470 if ((pdev->class >> 8) != 0xff00)
1471 return;
1473 /* the first BAR is the location of the IO APIC...we must
1474 * not touch this (and it's already covered by the fixmap), so
1475 * forcibly insert it into the resource tree */
1476 if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
1477 insert_resource(&iomem_resource, &pdev->resource[0]);
1479 /* The next five BARs all seem to be rubbish, so just clean
1480 * them out */
1481 for (i=1; i < 6; i++) {
1482 memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
1486 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
1487 #endif
1489 static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
1491 pcie_mch_quirk = 1;
1493 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
1494 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
1495 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
1499 * It's possible for the MSI to get corrupted if shpc and acpi
1500 * are used together on certain PXH-based systems.
1502 static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
1504 pci_msi_off(dev);
1505 dev->no_msi = 1;
1506 dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n");
1508 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
1509 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
1510 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
1511 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
1512 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
1515 * Some Intel PCI Express chipsets have trouble with downstream
1516 * device power management.
1518 static void quirk_intel_pcie_pm(struct pci_dev * dev)
1520 pci_pm_d3_delay = 120;
1521 dev->no_d1d2 = 1;
1524 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
1525 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
1526 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
1527 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
1528 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
1529 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
1530 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
1531 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
1532 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
1533 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
1534 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
1535 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
1536 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
1537 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
1538 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
1539 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
1540 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
1541 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
1542 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
1543 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
1544 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
1546 #ifdef CONFIG_X86_IO_APIC
1548 * Boot interrupts on some chipsets cannot be turned off. For these chipsets,
1549 * remap the original interrupt in the linux kernel to the boot interrupt, so
1550 * that a PCI device's interrupt handler is installed on the boot interrupt
1551 * line instead.
1553 static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev)
1555 if (noioapicquirk || noioapicreroute)
1556 return;
1558 dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT;
1560 printk(KERN_INFO "PCI quirk: reroute interrupts for 0x%04x:0x%04x\n",
1561 dev->vendor, dev->device);
1562 return;
1564 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1565 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1566 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1567 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1568 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1569 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1570 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1571 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
1572 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1573 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1574 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1575 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1576 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1577 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1578 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1579 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
1582 * On some chipsets we can disable the generation of legacy INTx boot
1583 * interrupts.
1587 * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no
1588 * 300641-004US, section 5.7.3.
1590 #define INTEL_6300_IOAPIC_ABAR 0x40
1591 #define INTEL_6300_DISABLE_BOOT_IRQ (1<<14)
1593 static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
1595 u16 pci_config_word;
1597 if (noioapicquirk)
1598 return;
1600 pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word);
1601 pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ;
1602 pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word);
1604 printk(KERN_INFO "disabled boot interrupt on device 0x%04x:0x%04x\n",
1605 dev->vendor, dev->device);
1607 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
1608 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
1611 * disable boot interrupts on HT-1000
1613 #define BC_HT1000_FEATURE_REG 0x64
1614 #define BC_HT1000_PIC_REGS_ENABLE (1<<0)
1615 #define BC_HT1000_MAP_IDX 0xC00
1616 #define BC_HT1000_MAP_DATA 0xC01
1618 static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
1620 u32 pci_config_dword;
1621 u8 irq;
1623 if (noioapicquirk)
1624 return;
1626 pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
1627 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
1628 BC_HT1000_PIC_REGS_ENABLE);
1630 for (irq = 0x10; irq < 0x10 + 32; irq++) {
1631 outb(irq, BC_HT1000_MAP_IDX);
1632 outb(0x00, BC_HT1000_MAP_DATA);
1635 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
1637 printk(KERN_INFO "disabled boot interrupts on PCI device"
1638 "0x%04x:0x%04x\n", dev->vendor, dev->device);
1640 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
1641 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
1644 * disable boot interrupts on AMD and ATI chipsets
1647 * NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131
1648 * rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode
1649 * (due to an erratum).
1651 #define AMD_813X_MISC 0x40
1652 #define AMD_813X_NOIOAMODE (1<<0)
1653 #define AMD_813X_REV_B2 0x13
1655 static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
1657 u32 pci_config_dword;
1659 if (noioapicquirk)
1660 return;
1661 if (dev->revision == AMD_813X_REV_B2)
1662 return;
1664 pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
1665 pci_config_dword &= ~AMD_813X_NOIOAMODE;
1666 pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword);
1668 printk(KERN_INFO "disabled boot interrupts on PCI device "
1669 "0x%04x:0x%04x\n", dev->vendor, dev->device);
1671 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1672 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1674 #define AMD_8111_PCI_IRQ_ROUTING 0x56
1676 static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev)
1678 u16 pci_config_word;
1680 if (noioapicquirk)
1681 return;
1683 pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word);
1684 if (!pci_config_word) {
1685 printk(KERN_INFO "boot interrupts on PCI device 0x%04x:0x%04x "
1686 "already disabled\n",
1687 dev->vendor, dev->device);
1688 return;
1690 pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0);
1691 printk(KERN_INFO "disabled boot interrupts on PCI device "
1692 "0x%04x:0x%04x\n", dev->vendor, dev->device);
1694 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
1695 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
1696 #endif /* CONFIG_X86_IO_APIC */
1699 * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
1700 * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
1701 * Re-allocate the region if needed...
1703 static void __init quirk_tc86c001_ide(struct pci_dev *dev)
1705 struct resource *r = &dev->resource[0];
1707 if (r->start & 0x8) {
1708 r->start = 0;
1709 r->end = 0xf;
1712 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
1713 PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
1714 quirk_tc86c001_ide);
1716 static void __devinit quirk_netmos(struct pci_dev *dev)
1718 unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
1719 unsigned int num_serial = dev->subsystem_device & 0xf;
1722 * These Netmos parts are multiport serial devices with optional
1723 * parallel ports. Even when parallel ports are present, they
1724 * are identified as class SERIAL, which means the serial driver
1725 * will claim them. To prevent this, mark them as class OTHER.
1726 * These combo devices should be claimed by parport_serial.
1728 * The subdevice ID is of the form 0x00PS, where <P> is the number
1729 * of parallel ports and <S> is the number of serial ports.
1731 switch (dev->device) {
1732 case PCI_DEVICE_ID_NETMOS_9835:
1733 /* Well, this rule doesn't hold for the following 9835 device */
1734 if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
1735 dev->subsystem_device == 0x0299)
1736 return;
1737 case PCI_DEVICE_ID_NETMOS_9735:
1738 case PCI_DEVICE_ID_NETMOS_9745:
1739 case PCI_DEVICE_ID_NETMOS_9845:
1740 case PCI_DEVICE_ID_NETMOS_9855:
1741 if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
1742 num_parallel) {
1743 dev_info(&dev->dev, "Netmos %04x (%u parallel, "
1744 "%u serial); changing class SERIAL to OTHER "
1745 "(use parport_serial)\n",
1746 dev->device, num_parallel, num_serial);
1747 dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
1748 (dev->class & 0xff);
1752 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
1754 static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
1756 u16 command, pmcsr;
1757 u8 __iomem *csr;
1758 u8 cmd_hi;
1759 int pm;
1761 switch (dev->device) {
1762 /* PCI IDs taken from drivers/net/e100.c */
1763 case 0x1029:
1764 case 0x1030 ... 0x1034:
1765 case 0x1038 ... 0x103E:
1766 case 0x1050 ... 0x1057:
1767 case 0x1059:
1768 case 0x1064 ... 0x106B:
1769 case 0x1091 ... 0x1095:
1770 case 0x1209:
1771 case 0x1229:
1772 case 0x2449:
1773 case 0x2459:
1774 case 0x245D:
1775 case 0x27DC:
1776 break;
1777 default:
1778 return;
1782 * Some firmware hands off the e100 with interrupts enabled,
1783 * which can cause a flood of interrupts if packets are
1784 * received before the driver attaches to the device. So
1785 * disable all e100 interrupts here. The driver will
1786 * re-enable them when it's ready.
1788 pci_read_config_word(dev, PCI_COMMAND, &command);
1790 if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
1791 return;
1794 * Check that the device is in the D0 power state. If it's not,
1795 * there is no point to look any further.
1797 pm = pci_find_capability(dev, PCI_CAP_ID_PM);
1798 if (pm) {
1799 pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
1800 if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
1801 return;
1804 /* Convert from PCI bus to resource space. */
1805 csr = ioremap(pci_resource_start(dev, 0), 8);
1806 if (!csr) {
1807 dev_warn(&dev->dev, "Can't map e100 registers\n");
1808 return;
1811 cmd_hi = readb(csr + 3);
1812 if (cmd_hi == 0) {
1813 dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; "
1814 "disabling\n");
1815 writeb(1, csr + 3);
1818 iounmap(csr);
1820 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
1823 * The 82575 and 82598 may experience data corruption issues when transitioning
1824 * out of L0S. To prevent this we need to disable L0S on the pci-e link
1826 static void __devinit quirk_disable_aspm_l0s(struct pci_dev *dev)
1828 dev_info(&dev->dev, "Disabling L0s\n");
1829 pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
1831 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s);
1832 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s);
1833 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s);
1834 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s);
1835 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s);
1836 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s);
1837 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s);
1838 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s);
1839 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s);
1840 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s);
1841 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s);
1842 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
1843 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
1844 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
1846 static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
1848 /* rev 1 ncr53c810 chips don't set the class at all which means
1849 * they don't get their resources remapped. Fix that here.
1852 if (dev->class == PCI_CLASS_NOT_DEFINED) {
1853 dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n");
1854 dev->class = PCI_CLASS_STORAGE_SCSI;
1857 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
1859 /* Enable 1k I/O space granularity on the Intel P64H2 */
1860 static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
1862 u16 en1k;
1863 u8 io_base_lo, io_limit_lo;
1864 unsigned long base, limit;
1865 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1867 pci_read_config_word(dev, 0x40, &en1k);
1869 if (en1k & 0x200) {
1870 dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n");
1872 pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
1873 pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
1874 base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1875 limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
1877 if (base <= limit) {
1878 res->start = base;
1879 res->end = limit + 0x3ff;
1883 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
1885 /* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
1886 * The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
1887 * in drivers/pci/setup-bus.c
1889 static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
1891 u16 en1k, iobl_adr, iobl_adr_1k;
1892 struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
1894 pci_read_config_word(dev, 0x40, &en1k);
1896 if (en1k & 0x200) {
1897 pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
1899 iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
1901 if (iobl_adr != iobl_adr_1k) {
1902 dev_info(&dev->dev, "Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1KB granularity\n",
1903 iobl_adr,iobl_adr_1k);
1904 pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
1908 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
1910 /* Under some circumstances, AER is not linked with extended capabilities.
1911 * Force it to be linked by setting the corresponding control bit in the
1912 * config space.
1914 static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
1916 uint8_t b;
1917 if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
1918 if (!(b & 0x20)) {
1919 pci_write_config_byte(dev, 0xf41, b | 0x20);
1920 dev_info(&dev->dev,
1921 "Linking AER extended capability\n");
1925 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1926 quirk_nvidia_ck804_pcie_aer_ext_cap);
1927 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1928 quirk_nvidia_ck804_pcie_aer_ext_cap);
1930 static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
1933 * Disable PCI Bus Parking and PCI Master read caching on CX700
1934 * which causes unspecified timing errors with a VT6212L on the PCI
1935 * bus leading to USB2.0 packet loss. The defaults are that these
1936 * features are turned off but some BIOSes turn them on.
1939 uint8_t b;
1940 if (pci_read_config_byte(dev, 0x76, &b) == 0) {
1941 if (b & 0x40) {
1942 /* Turn off PCI Bus Parking */
1943 pci_write_config_byte(dev, 0x76, b ^ 0x40);
1945 dev_info(&dev->dev,
1946 "Disabling VIA CX700 PCI parking\n");
1950 if (pci_read_config_byte(dev, 0x72, &b) == 0) {
1951 if (b != 0) {
1952 /* Turn off PCI Master read caching */
1953 pci_write_config_byte(dev, 0x72, 0x0);
1955 /* Set PCI Master Bus time-out to "1x16 PCLK" */
1956 pci_write_config_byte(dev, 0x75, 0x1);
1958 /* Disable "Read FIFO Timer" */
1959 pci_write_config_byte(dev, 0x77, 0x0);
1961 dev_info(&dev->dev,
1962 "Disabling VIA CX700 PCI caching\n");
1966 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
1969 * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
1970 * VPD end tag will hang the device. This problem was initially
1971 * observed when a vpd entry was created in sysfs
1972 * ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry
1973 * will dump 32k of data. Reading a full 32k will cause an access
1974 * beyond the VPD end tag causing the device to hang. Once the device
1975 * is hung, the bnx2 driver will not be able to reset the device.
1976 * We believe that it is legal to read beyond the end tag and
1977 * therefore the solution is to limit the read/write length.
1979 static void __devinit quirk_brcm_570x_limit_vpd(struct pci_dev *dev)
1982 * Only disable the VPD capability for 5706, 5706S, 5708,
1983 * 5708S and 5709 rev. A
1985 if ((dev->device == PCI_DEVICE_ID_NX2_5706) ||
1986 (dev->device == PCI_DEVICE_ID_NX2_5706S) ||
1987 (dev->device == PCI_DEVICE_ID_NX2_5708) ||
1988 (dev->device == PCI_DEVICE_ID_NX2_5708S) ||
1989 ((dev->device == PCI_DEVICE_ID_NX2_5709) &&
1990 (dev->revision & 0xf0) == 0x0)) {
1991 if (dev->vpd)
1992 dev->vpd->len = 0x80;
1996 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
1997 PCI_DEVICE_ID_NX2_5706,
1998 quirk_brcm_570x_limit_vpd);
1999 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2000 PCI_DEVICE_ID_NX2_5706S,
2001 quirk_brcm_570x_limit_vpd);
2002 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2003 PCI_DEVICE_ID_NX2_5708,
2004 quirk_brcm_570x_limit_vpd);
2005 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2006 PCI_DEVICE_ID_NX2_5708S,
2007 quirk_brcm_570x_limit_vpd);
2008 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2009 PCI_DEVICE_ID_NX2_5709,
2010 quirk_brcm_570x_limit_vpd);
2011 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2012 PCI_DEVICE_ID_NX2_5709S,
2013 quirk_brcm_570x_limit_vpd);
2015 #ifdef CONFIG_PCI_MSI
2016 /* Some chipsets do not support MSI. We cannot easily rely on setting
2017 * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
2018 * some other busses controlled by the chipset even if Linux is not
2019 * aware of it. Instead of setting the flag on all busses in the
2020 * machine, simply disable MSI globally.
2022 static void __init quirk_disable_all_msi(struct pci_dev *dev)
2024 pci_no_msi();
2025 dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n");
2027 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
2028 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
2029 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
2030 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
2031 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
2033 /* Disable MSI on chipsets that are known to not support it */
2034 static void __devinit quirk_disable_msi(struct pci_dev *dev)
2036 if (dev->subordinate) {
2037 dev_warn(&dev->dev, "MSI quirk detected; "
2038 "subordinate MSI disabled\n");
2039 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2042 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
2044 /* Go through the list of Hypertransport capabilities and
2045 * return 1 if a HT MSI capability is found and enabled */
2046 static int __devinit msi_ht_cap_enabled(struct pci_dev *dev)
2048 int pos, ttl = 48;
2050 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2051 while (pos && ttl--) {
2052 u8 flags;
2054 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2055 &flags) == 0)
2057 dev_info(&dev->dev, "Found %s HT MSI Mapping\n",
2058 flags & HT_MSI_FLAGS_ENABLE ?
2059 "enabled" : "disabled");
2060 return (flags & HT_MSI_FLAGS_ENABLE) != 0;
2063 pos = pci_find_next_ht_capability(dev, pos,
2064 HT_CAPTYPE_MSI_MAPPING);
2066 return 0;
2069 /* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
2070 static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
2072 if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
2073 dev_warn(&dev->dev, "MSI quirk detected; "
2074 "subordinate MSI disabled\n");
2075 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2078 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
2079 quirk_msi_ht_cap);
2081 /* The nVidia CK804 chipset may have 2 HT MSI mappings.
2082 * MSI are supported if the MSI capability set in any of these mappings.
2084 static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
2086 struct pci_dev *pdev;
2088 if (!dev->subordinate)
2089 return;
2091 /* check HT MSI cap on this chipset and the root one.
2092 * a single one having MSI is enough to be sure that MSI are supported.
2094 pdev = pci_get_slot(dev->bus, 0);
2095 if (!pdev)
2096 return;
2097 if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
2098 dev_warn(&dev->dev, "MSI quirk detected; "
2099 "subordinate MSI disabled\n");
2100 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2102 pci_dev_put(pdev);
2104 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2105 quirk_nvidia_ck804_msi_ht_cap);
2107 /* Force enable MSI mapping capability on HT bridges */
2108 static void __devinit ht_enable_msi_mapping(struct pci_dev *dev)
2110 int pos, ttl = 48;
2112 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2113 while (pos && ttl--) {
2114 u8 flags;
2116 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2117 &flags) == 0) {
2118 dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
2120 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2121 flags | HT_MSI_FLAGS_ENABLE);
2123 pos = pci_find_next_ht_capability(dev, pos,
2124 HT_CAPTYPE_MSI_MAPPING);
2127 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
2128 PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
2129 ht_enable_msi_mapping);
2131 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
2132 ht_enable_msi_mapping);
2134 /* The P5N32-SLI Premium motherboard from Asus has a problem with msi
2135 * for the MCP55 NIC. It is not yet determined whether the msi problem
2136 * also affects other devices. As for now, turn off msi for this device.
2138 static void __devinit nvenet_msi_disable(struct pci_dev *dev)
2140 if (dmi_name_in_vendors("P5N32-SLI PREMIUM")) {
2141 dev_info(&dev->dev,
2142 "Disabling msi for MCP55 NIC on P5N32-SLI Premium\n");
2143 dev->no_msi = 1;
2146 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2147 PCI_DEVICE_ID_NVIDIA_NVENET_15,
2148 nvenet_msi_disable);
2150 static int __devinit ht_check_msi_mapping(struct pci_dev *dev)
2152 int pos, ttl = 48;
2153 int found = 0;
2155 /* check if there is HT MSI cap or enabled on this device */
2156 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2157 while (pos && ttl--) {
2158 u8 flags;
2160 if (found < 1)
2161 found = 1;
2162 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2163 &flags) == 0) {
2164 if (flags & HT_MSI_FLAGS_ENABLE) {
2165 if (found < 2) {
2166 found = 2;
2167 break;
2171 pos = pci_find_next_ht_capability(dev, pos,
2172 HT_CAPTYPE_MSI_MAPPING);
2175 return found;
2178 static int __devinit host_bridge_with_leaf(struct pci_dev *host_bridge)
2180 struct pci_dev *dev;
2181 int pos;
2182 int i, dev_no;
2183 int found = 0;
2185 dev_no = host_bridge->devfn >> 3;
2186 for (i = dev_no + 1; i < 0x20; i++) {
2187 dev = pci_get_slot(host_bridge->bus, PCI_DEVFN(i, 0));
2188 if (!dev)
2189 continue;
2191 /* found next host bridge ?*/
2192 pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
2193 if (pos != 0) {
2194 pci_dev_put(dev);
2195 break;
2198 if (ht_check_msi_mapping(dev)) {
2199 found = 1;
2200 pci_dev_put(dev);
2201 break;
2203 pci_dev_put(dev);
2206 return found;
2209 #define PCI_HT_CAP_SLAVE_CTRL0 4 /* link control */
2210 #define PCI_HT_CAP_SLAVE_CTRL1 8 /* link control to */
2212 static int __devinit is_end_of_ht_chain(struct pci_dev *dev)
2214 int pos, ctrl_off;
2215 int end = 0;
2216 u16 flags, ctrl;
2218 pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
2220 if (!pos)
2221 goto out;
2223 pci_read_config_word(dev, pos + PCI_CAP_FLAGS, &flags);
2225 ctrl_off = ((flags >> 10) & 1) ?
2226 PCI_HT_CAP_SLAVE_CTRL0 : PCI_HT_CAP_SLAVE_CTRL1;
2227 pci_read_config_word(dev, pos + ctrl_off, &ctrl);
2229 if (ctrl & (1 << 6))
2230 end = 1;
2232 out:
2233 return end;
2236 static void __devinit nv_ht_enable_msi_mapping(struct pci_dev *dev)
2238 struct pci_dev *host_bridge;
2239 int pos;
2240 int i, dev_no;
2241 int found = 0;
2243 dev_no = dev->devfn >> 3;
2244 for (i = dev_no; i >= 0; i--) {
2245 host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0));
2246 if (!host_bridge)
2247 continue;
2249 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
2250 if (pos != 0) {
2251 found = 1;
2252 break;
2254 pci_dev_put(host_bridge);
2257 if (!found)
2258 return;
2260 /* don't enable end_device/host_bridge with leaf directly here */
2261 if (host_bridge == dev && is_end_of_ht_chain(host_bridge) &&
2262 host_bridge_with_leaf(host_bridge))
2263 goto out;
2265 /* root did that ! */
2266 if (msi_ht_cap_enabled(host_bridge))
2267 goto out;
2269 ht_enable_msi_mapping(dev);
2271 out:
2272 pci_dev_put(host_bridge);
2275 static void __devinit ht_disable_msi_mapping(struct pci_dev *dev)
2277 int pos, ttl = 48;
2279 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2280 while (pos && ttl--) {
2281 u8 flags;
2283 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2284 &flags) == 0) {
2285 dev_info(&dev->dev, "Disabling HT MSI Mapping\n");
2287 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2288 flags & ~HT_MSI_FLAGS_ENABLE);
2290 pos = pci_find_next_ht_capability(dev, pos,
2291 HT_CAPTYPE_MSI_MAPPING);
2295 static void __devinit __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all)
2297 struct pci_dev *host_bridge;
2298 int pos;
2299 int found;
2301 /* check if there is HT MSI cap or enabled on this device */
2302 found = ht_check_msi_mapping(dev);
2304 /* no HT MSI CAP */
2305 if (found == 0)
2306 return;
2309 * HT MSI mapping should be disabled on devices that are below
2310 * a non-Hypertransport host bridge. Locate the host bridge...
2312 host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
2313 if (host_bridge == NULL) {
2314 dev_warn(&dev->dev,
2315 "nv_msi_ht_cap_quirk didn't locate host bridge\n");
2316 return;
2319 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
2320 if (pos != 0) {
2321 /* Host bridge is to HT */
2322 if (found == 1) {
2323 /* it is not enabled, try to enable it */
2324 if (all)
2325 ht_enable_msi_mapping(dev);
2326 else
2327 nv_ht_enable_msi_mapping(dev);
2329 return;
2332 /* HT MSI is not enabled */
2333 if (found == 1)
2334 return;
2336 /* Host bridge is not to HT, disable HT MSI mapping on this device */
2337 ht_disable_msi_mapping(dev);
2340 static void __devinit nv_msi_ht_cap_quirk_all(struct pci_dev *dev)
2342 return __nv_msi_ht_cap_quirk(dev, 1);
2345 static void __devinit nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev)
2347 return __nv_msi_ht_cap_quirk(dev, 0);
2350 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
2352 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
2354 static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
2356 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2358 static void __devinit quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
2360 struct pci_dev *p;
2362 /* SB700 MSI issue will be fixed at HW level from revision A21,
2363 * we need check PCI REVISION ID of SMBus controller to get SB700
2364 * revision.
2366 p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
2367 NULL);
2368 if (!p)
2369 return;
2371 if ((p->revision < 0x3B) && (p->revision >= 0x30))
2372 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2373 pci_dev_put(p);
2375 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2376 PCI_DEVICE_ID_TIGON3_5780,
2377 quirk_msi_intx_disable_bug);
2378 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2379 PCI_DEVICE_ID_TIGON3_5780S,
2380 quirk_msi_intx_disable_bug);
2381 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2382 PCI_DEVICE_ID_TIGON3_5714,
2383 quirk_msi_intx_disable_bug);
2384 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2385 PCI_DEVICE_ID_TIGON3_5714S,
2386 quirk_msi_intx_disable_bug);
2387 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2388 PCI_DEVICE_ID_TIGON3_5715,
2389 quirk_msi_intx_disable_bug);
2390 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2391 PCI_DEVICE_ID_TIGON3_5715S,
2392 quirk_msi_intx_disable_bug);
2394 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
2395 quirk_msi_intx_disable_ati_bug);
2396 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
2397 quirk_msi_intx_disable_ati_bug);
2398 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
2399 quirk_msi_intx_disable_ati_bug);
2400 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
2401 quirk_msi_intx_disable_ati_bug);
2402 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
2403 quirk_msi_intx_disable_ati_bug);
2405 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
2406 quirk_msi_intx_disable_bug);
2407 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
2408 quirk_msi_intx_disable_bug);
2409 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
2410 quirk_msi_intx_disable_bug);
2412 #endif /* CONFIG_PCI_MSI */
2414 static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
2415 struct pci_fixup *end)
2417 while (f < end) {
2418 if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
2419 (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
2420 dev_dbg(&dev->dev, "calling %pF\n", f->hook);
2421 f->hook(dev);
2423 f++;
2427 extern struct pci_fixup __start_pci_fixups_early[];
2428 extern struct pci_fixup __end_pci_fixups_early[];
2429 extern struct pci_fixup __start_pci_fixups_header[];
2430 extern struct pci_fixup __end_pci_fixups_header[];
2431 extern struct pci_fixup __start_pci_fixups_final[];
2432 extern struct pci_fixup __end_pci_fixups_final[];
2433 extern struct pci_fixup __start_pci_fixups_enable[];
2434 extern struct pci_fixup __end_pci_fixups_enable[];
2435 extern struct pci_fixup __start_pci_fixups_resume[];
2436 extern struct pci_fixup __end_pci_fixups_resume[];
2437 extern struct pci_fixup __start_pci_fixups_resume_early[];
2438 extern struct pci_fixup __end_pci_fixups_resume_early[];
2439 extern struct pci_fixup __start_pci_fixups_suspend[];
2440 extern struct pci_fixup __end_pci_fixups_suspend[];
2443 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
2445 struct pci_fixup *start, *end;
2447 switch(pass) {
2448 case pci_fixup_early:
2449 start = __start_pci_fixups_early;
2450 end = __end_pci_fixups_early;
2451 break;
2453 case pci_fixup_header:
2454 start = __start_pci_fixups_header;
2455 end = __end_pci_fixups_header;
2456 break;
2458 case pci_fixup_final:
2459 start = __start_pci_fixups_final;
2460 end = __end_pci_fixups_final;
2461 break;
2463 case pci_fixup_enable:
2464 start = __start_pci_fixups_enable;
2465 end = __end_pci_fixups_enable;
2466 break;
2468 case pci_fixup_resume:
2469 start = __start_pci_fixups_resume;
2470 end = __end_pci_fixups_resume;
2471 break;
2473 case pci_fixup_resume_early:
2474 start = __start_pci_fixups_resume_early;
2475 end = __end_pci_fixups_resume_early;
2476 break;
2478 case pci_fixup_suspend:
2479 start = __start_pci_fixups_suspend;
2480 end = __end_pci_fixups_suspend;
2481 break;
2483 default:
2484 /* stupid compiler warning, you would think with an enum... */
2485 return;
2487 pci_do_fixups(dev, start, end);
2489 #else
2490 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) {}
2491 #endif
2492 EXPORT_SYMBOL(pci_fixup_device);