1 // SPDX-License-Identifier: GPL-2.0
3 * This file contains work-arounds for many known PCI hardware bugs.
4 * Devices present only on certain architectures (host bridges et cetera)
5 * should be handled in arch-specific code.
7 * Note: any quirks for hotpluggable devices must _NOT_ be declared __init.
9 * Copyright (c) 1999 Martin Mares <mj@ucw.cz>
11 * Init/reset quirks for USB host controllers should be in the USB quirks
12 * file, where their drivers can use them.
15 #include <linux/types.h>
16 #include <linux/kernel.h>
17 #include <linux/export.h>
18 #include <linux/pci.h>
19 #include <linux/init.h>
20 #include <linux/delay.h>
21 #include <linux/acpi.h>
22 #include <linux/dmi.h>
23 #include <linux/pci-aspm.h>
24 #include <linux/ioport.h>
25 #include <linux/sched.h>
26 #include <linux/ktime.h>
28 #include <linux/platform_data/x86/apple.h>
29 #include <asm/dma.h> /* isa_dma_bridge_buggy */
33 * Decoding should be disabled for a PCI device during BAR sizing to avoid
34 * conflict. But doing so may cause problems on host bridge and perhaps other
35 * key system devices. For devices that need to have mmio decoding always-on,
36 * we need to set the dev->mmio_always_on bit.
38 static void quirk_mmio_always_on(struct pci_dev *dev)
40 dev->mmio_always_on = 1;
42 DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_ANY_ID, PCI_ANY_ID,
43 PCI_CLASS_BRIDGE_HOST, 8, quirk_mmio_always_on);
45 /* The Mellanox Tavor device gives false positive parity errors
46 * Mark this device with a broken_parity_status, to allow
47 * PCI scanning code to "skip" this now blacklisted device.
49 static void quirk_mellanox_tavor(struct pci_dev *dev)
51 dev->broken_parity_status = 1; /* This device gives false positives */
53 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR, quirk_mellanox_tavor);
54 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE, quirk_mellanox_tavor);
56 /* Deal with broken BIOSes that neglect to enable passive release,
57 which can cause problems in combination with the 82441FX/PPro MTRRs */
58 static void quirk_passive_release(struct pci_dev *dev)
60 struct pci_dev *d = NULL;
63 /* We have to make sure a particular bit is set in the PIIX3
64 ISA bridge, so we have to go out and find it. */
65 while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
66 pci_read_config_byte(d, 0x82, &dlc);
68 pci_info(d, "PIIX3: Enabling Passive Release\n");
70 pci_write_config_byte(d, 0x82, dlc);
74 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
75 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
77 /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
78 but VIA don't answer queries. If you happen to have good contacts at VIA
79 ask them for me please -- Alan
81 This appears to be BIOS not version dependent. So presumably there is a
84 static void quirk_isa_dma_hangs(struct pci_dev *dev)
86 if (!isa_dma_bridge_buggy) {
87 isa_dma_bridge_buggy = 1;
88 pci_info(dev, "Activating ISA DMA hang workarounds\n");
92 * Its not totally clear which chipsets are the problematic ones
93 * We know 82C586 and 82C596 variants are affected.
95 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs);
96 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs);
97 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs);
98 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs);
99 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs);
100 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs);
101 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs);
104 * Intel NM10 "TigerPoint" LPC PM1a_STS.BM_STS must be clear
105 * for some HT machines to use C4 w/o hanging.
107 static void quirk_tigerpoint_bm_sts(struct pci_dev *dev)
112 pci_read_config_dword(dev, 0x40, &pmbase);
113 pmbase = pmbase & 0xff80;
117 pci_info(dev, FW_BUG "TigerPoint LPC.BM_STS cleared\n");
121 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGP_LPC, quirk_tigerpoint_bm_sts);
124 * Chipsets where PCI->PCI transfers vanish or hang
126 static void quirk_nopcipci(struct pci_dev *dev)
128 if ((pci_pci_problems & PCIPCI_FAIL) == 0) {
129 pci_info(dev, "Disabling direct PCI/PCI transfers\n");
130 pci_pci_problems |= PCIPCI_FAIL;
133 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci);
134 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci);
136 static void quirk_nopciamd(struct pci_dev *dev)
139 pci_read_config_byte(dev, 0x08, &rev);
142 pci_info(dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n");
143 pci_pci_problems |= PCIAGP_FAIL;
146 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
149 * Triton requires workarounds to be used by the drivers
151 static void quirk_triton(struct pci_dev *dev)
153 if ((pci_pci_problems&PCIPCI_TRITON) == 0) {
154 pci_info(dev, "Limiting direct PCI/PCI transfers\n");
155 pci_pci_problems |= PCIPCI_TRITON;
158 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton);
159 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton);
160 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton);
161 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton);
164 * VIA Apollo KT133 needs PCI latency patch
165 * Made according to a windows driver based patch by George E. Breese
166 * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
167 * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
168 * the info on which Mr Breese based his work.
170 * Updated based on further information from the site and also on
171 * information provided by VIA
173 static void quirk_vialatency(struct pci_dev *dev)
177 /* Ok we have a potential problem chipset here. Now see if we have
178 a buggy southbridge */
180 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
182 /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
183 /* Check for buggy part revisions */
184 if (p->revision < 0x40 || p->revision > 0x42)
187 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
188 if (p == NULL) /* No problem parts */
190 /* Check for buggy part revisions */
191 if (p->revision < 0x10 || p->revision > 0x12)
196 * Ok we have the problem. Now set the PCI master grant to
197 * occur every master grant. The apparent bug is that under high
198 * PCI load (quite common in Linux of course) you can get data
199 * loss when the CPU is held off the bus for 3 bus master requests
200 * This happens to include the IDE controllers....
202 * VIA only apply this fix when an SB Live! is present but under
203 * both Linux and Windows this isn't enough, and we have seen
204 * corruption without SB Live! but with things like 3 UDMA IDE
205 * controllers. So we ignore that bit of the VIA recommendation..
208 pci_read_config_byte(dev, 0x76, &busarb);
209 /* Set bit 4 and bi 5 of byte 76 to 0x01
210 "Master priority rotation on every PCI master grant */
213 pci_write_config_byte(dev, 0x76, busarb);
214 pci_info(dev, "Applying VIA southbridge workaround\n");
218 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
219 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
220 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
221 /* Must restore this on a resume from RAM */
222 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
223 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
224 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
227 * VIA Apollo VP3 needs ETBF on BT848/878
229 static void quirk_viaetbf(struct pci_dev *dev)
231 if ((pci_pci_problems&PCIPCI_VIAETBF) == 0) {
232 pci_info(dev, "Limiting direct PCI/PCI transfers\n");
233 pci_pci_problems |= PCIPCI_VIAETBF;
236 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf);
238 static void quirk_vsfx(struct pci_dev *dev)
240 if ((pci_pci_problems&PCIPCI_VSFX) == 0) {
241 pci_info(dev, "Limiting direct PCI/PCI transfers\n");
242 pci_pci_problems |= PCIPCI_VSFX;
245 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx);
248 * Ali Magik requires workarounds to be used by the drivers
249 * that DMA to AGP space. Latency must be set to 0xA and triton
250 * workaround applied too
251 * [Info kindly provided by ALi]
253 static void quirk_alimagik(struct pci_dev *dev)
255 if ((pci_pci_problems&PCIPCI_ALIMAGIK) == 0) {
256 pci_info(dev, "Limiting direct PCI/PCI transfers\n");
257 pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
260 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik);
261 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik);
264 * Natoma has some interesting boundary conditions with Zoran stuff
267 static void quirk_natoma(struct pci_dev *dev)
269 if ((pci_pci_problems&PCIPCI_NATOMA) == 0) {
270 pci_info(dev, "Limiting direct PCI/PCI transfers\n");
271 pci_pci_problems |= PCIPCI_NATOMA;
274 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma);
275 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma);
276 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma);
277 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma);
278 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma);
279 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma);
282 * This chip can cause PCI parity errors if config register 0xA0 is read
283 * while DMAs are occurring.
285 static void quirk_citrine(struct pci_dev *dev)
287 dev->cfg_size = 0xA0;
289 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine);
292 * This chip can cause bus lockups if config addresses above 0x600
293 * are read or written.
295 static void quirk_nfp6000(struct pci_dev *dev)
297 dev->cfg_size = 0x600;
299 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP4000, quirk_nfp6000);
300 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP6000, quirk_nfp6000);
301 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP6000_VF, quirk_nfp6000);
303 /* On IBM Crocodile ipr SAS adapters, expand BAR to system page size */
304 static void quirk_extend_bar_to_page(struct pci_dev *dev)
308 for (i = 0; i <= PCI_STD_RESOURCE_END; i++) {
309 struct resource *r = &dev->resource[i];
311 if (r->flags & IORESOURCE_MEM && resource_size(r) < PAGE_SIZE) {
312 r->end = PAGE_SIZE - 1;
314 r->flags |= IORESOURCE_UNSET;
315 pci_info(dev, "expanded BAR %d to page size: %pR\n",
320 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, 0x034a, quirk_extend_bar_to_page);
323 * S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
324 * If it's needed, re-allocate the region.
326 static void quirk_s3_64M(struct pci_dev *dev)
328 struct resource *r = &dev->resource[0];
330 if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
331 r->flags |= IORESOURCE_UNSET;
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 quirk_io(struct pci_dev *dev, int pos, unsigned size,
343 struct pci_bus_region bus_region;
344 struct resource *res = dev->resource + pos;
346 pci_read_config_dword(dev, PCI_BASE_ADDRESS_0 + (pos << 2), ®ion);
351 res->name = pci_name(dev);
352 res->flags = region & ~PCI_BASE_ADDRESS_IO_MASK;
354 (IORESOURCE_IO | IORESOURCE_PCI_FIXED | IORESOURCE_SIZEALIGN);
355 region &= ~(size - 1);
357 /* Convert from PCI bus to resource space */
358 bus_region.start = region;
359 bus_region.end = region + size - 1;
360 pcibios_bus_to_resource(dev->bus, res, &bus_region);
362 pci_info(dev, FW_BUG "%s quirk: reg 0x%x: %pR\n",
363 name, PCI_BASE_ADDRESS_0 + (pos << 2), res);
367 * Some CS5536 BIOSes (for example, the Soekris NET5501 board w/ comBIOS
368 * ver. 1.33 20070103) don't set the correct ISA PCI region header info.
369 * BAR0 should be 8 bytes; instead, it may be set to something like 8k
370 * (which conflicts w/ BAR1's memory range).
372 * CS553x's ISA PCI BARs may also be read-only (ref:
373 * https://bugzilla.kernel.org/show_bug.cgi?id=85991 - Comment #4 forward).
375 static void quirk_cs5536_vsa(struct pci_dev *dev)
377 static char *name = "CS5536 ISA bridge";
379 if (pci_resource_len(dev, 0) != 8) {
380 quirk_io(dev, 0, 8, name); /* SMB */
381 quirk_io(dev, 1, 256, name); /* GPIO */
382 quirk_io(dev, 2, 64, name); /* MFGPT */
383 pci_info(dev, "%s bug detected (incorrect header); workaround applied\n",
387 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_cs5536_vsa);
389 static void quirk_io_region(struct pci_dev *dev, int port,
390 unsigned size, int nr, const char *name)
393 struct pci_bus_region bus_region;
394 struct resource *res = dev->resource + nr;
396 pci_read_config_word(dev, port, ®ion);
397 region &= ~(size - 1);
402 res->name = pci_name(dev);
403 res->flags = IORESOURCE_IO;
405 /* Convert from PCI bus to resource space */
406 bus_region.start = region;
407 bus_region.end = region + size - 1;
408 pcibios_bus_to_resource(dev->bus, res, &bus_region);
410 if (!pci_claim_resource(dev, nr))
411 pci_info(dev, "quirk: %pR claimed by %s\n", res, name);
415 * ATI Northbridge setups MCE the processor if you even
416 * read somewhere between 0x3b0->0x3bb or read 0x3d3
418 static void quirk_ati_exploding_mce(struct pci_dev *dev)
420 pci_info(dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
421 /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
422 request_region(0x3b0, 0x0C, "RadeonIGP");
423 request_region(0x3d3, 0x01, "RadeonIGP");
425 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce);
428 * In the AMD NL platform, this device ([1022:7912]) has a class code of
429 * PCI_CLASS_SERIAL_USB_XHCI (0x0c0330), which means the xhci driver will
431 * But the dwc3 driver is a more specific driver for this device, and we'd
432 * prefer to use it instead of xhci. To prevent xhci from claiming the
433 * device, change the class code to 0x0c03fe, which the PCI r3.0 spec
434 * defines as "USB device (not host controller)". The dwc3 driver can then
435 * claim it based on its Vendor and Device ID.
437 static void quirk_amd_nl_class(struct pci_dev *pdev)
439 u32 class = pdev->class;
441 /* Use "USB Device (not host controller)" class */
442 pdev->class = PCI_CLASS_SERIAL_USB_DEVICE;
443 pci_info(pdev, "PCI class overridden (%#08x -> %#08x) so dwc3 driver can claim this instead of xhci\n",
446 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB,
450 * Let's make the southbridge information explicit instead
451 * of having to worry about people probing the ACPI areas,
452 * for example.. (Yes, it happens, and if you read the wrong
453 * ACPI register it will put the machine to sleep with no
454 * way of waking it up again. Bummer).
456 * ALI M7101: Two IO regions pointed to by words at
457 * 0xE0 (64 bytes of ACPI registers)
458 * 0xE2 (32 bytes of SMB registers)
460 static void quirk_ali7101_acpi(struct pci_dev *dev)
462 quirk_io_region(dev, 0xE0, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
463 quirk_io_region(dev, 0xE2, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
465 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi);
467 static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
470 u32 mask, size, base;
472 pci_read_config_dword(dev, port, &devres);
473 if ((devres & enable) != enable)
475 mask = (devres >> 16) & 15;
476 base = devres & 0xffff;
479 unsigned bit = size >> 1;
480 if ((bit & mask) == bit)
485 * For now we only print it out. Eventually we'll want to
486 * reserve it (at least if it's in the 0x1000+ range), but
487 * let's get enough confirmation reports first.
490 pci_info(dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
493 static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
496 u32 mask, size, base;
498 pci_read_config_dword(dev, port, &devres);
499 if ((devres & enable) != enable)
501 base = devres & 0xffff0000;
502 mask = (devres & 0x3f) << 16;
505 unsigned bit = size >> 1;
506 if ((bit & mask) == bit)
511 * For now we only print it out. Eventually we'll want to
512 * reserve it, but let's get enough confirmation reports first.
515 pci_info(dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
519 * PIIX4 ACPI: Two IO regions pointed to by longwords at
520 * 0x40 (64 bytes of ACPI registers)
521 * 0x90 (16 bytes of SMB registers)
522 * and a few strange programmable PIIX4 device resources.
524 static void quirk_piix4_acpi(struct pci_dev *dev)
528 quirk_io_region(dev, 0x40, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
529 quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
531 /* Device resource A has enables for some of the other ones */
532 pci_read_config_dword(dev, 0x5c, &res_a);
534 piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
535 piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
537 /* Device resource D is just bitfields for static resources */
539 /* Device 12 enabled? */
540 if (res_a & (1 << 29)) {
541 piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
542 piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
544 /* Device 13 enabled? */
545 if (res_a & (1 << 30)) {
546 piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
547 piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
549 piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
550 piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
552 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi);
553 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi);
555 #define ICH_PMBASE 0x40
556 #define ICH_ACPI_CNTL 0x44
557 #define ICH4_ACPI_EN 0x10
558 #define ICH6_ACPI_EN 0x80
559 #define ICH4_GPIOBASE 0x58
560 #define ICH4_GPIO_CNTL 0x5c
561 #define ICH4_GPIO_EN 0x10
562 #define ICH6_GPIOBASE 0x48
563 #define ICH6_GPIO_CNTL 0x4c
564 #define ICH6_GPIO_EN 0x10
567 * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
568 * 0x40 (128 bytes of ACPI, GPIO & TCO registers)
569 * 0x58 (64 bytes of GPIO I/O space)
571 static void quirk_ich4_lpc_acpi(struct pci_dev *dev)
576 * The check for PCIBIOS_MIN_IO is to ensure we won't create a conflict
577 * with low legacy (and fixed) ports. We don't know the decoding
578 * priority and can't tell whether the legacy device or the one created
579 * here is really at that address. This happens on boards with broken
583 pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
584 if (enable & ICH4_ACPI_EN)
585 quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES,
586 "ICH4 ACPI/GPIO/TCO");
588 pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable);
589 if (enable & ICH4_GPIO_EN)
590 quirk_io_region(dev, ICH4_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1,
593 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi);
594 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi);
595 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi);
596 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi);
597 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi);
598 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi);
599 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi);
600 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi);
601 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
602 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
604 static void ich6_lpc_acpi_gpio(struct pci_dev *dev)
608 pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable);
609 if (enable & ICH6_ACPI_EN)
610 quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES,
611 "ICH6 ACPI/GPIO/TCO");
613 pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable);
614 if (enable & ICH6_GPIO_EN)
615 quirk_io_region(dev, ICH6_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1,
619 static void 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 pci_info(dev, "%s PIO at %04x-%04x\n", name, base, base+size-1);
647 static void 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 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 pci_info(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 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 quirk_vt82c586_acpi(struct pci_dev *dev)
714 if (dev->revision & 0x10)
715 quirk_io_region(dev, 0x48, 256, PCI_BRIDGE_RESOURCES,
718 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi);
721 * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
722 * 0x48 (256 bytes of ACPI registers)
723 * 0x70 (128 bytes of hardware monitoring register)
724 * 0x90 (16 bytes of SMB registers)
726 static void quirk_vt82c686_acpi(struct pci_dev *dev)
728 quirk_vt82c586_acpi(dev);
730 quirk_io_region(dev, 0x70, 128, PCI_BRIDGE_RESOURCES+1,
733 quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+2, "vt82c686 SMB");
735 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi);
738 * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
739 * 0x88 (128 bytes of power management registers)
740 * 0xd0 (16 bytes of SMB registers)
742 static void quirk_vt8235_acpi(struct pci_dev *dev)
744 quirk_io_region(dev, 0x88, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
745 quirk_io_region(dev, 0xd0, 16, PCI_BRIDGE_RESOURCES+1, "vt8235 SMB");
747 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
750 * TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back:
751 * Disable fast back-to-back on the secondary bus segment
753 static void quirk_xio2000a(struct pci_dev *dev)
755 struct pci_dev *pdev;
758 pci_warn(dev, "TI XIO2000a quirk detected; secondary bus fast back-to-back transfers disabled\n");
759 list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) {
760 pci_read_config_word(pdev, PCI_COMMAND, &command);
761 if (command & PCI_COMMAND_FAST_BACK)
762 pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK);
765 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A,
768 #ifdef CONFIG_X86_IO_APIC
770 #include <asm/io_apic.h>
773 * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
774 * devices to the external APIC.
776 * TODO: When we have device-specific interrupt routers,
777 * this code will go away from quirks.
779 static void quirk_via_ioapic(struct pci_dev *dev)
784 tmp = 0; /* nothing routed to external APIC */
786 tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
788 pci_info(dev, "%sbling VIA external APIC routing\n",
789 tmp == 0 ? "Disa" : "Ena");
791 /* Offset 0x58: External APIC IRQ output control */
792 pci_write_config_byte(dev, 0x58, tmp);
794 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
795 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
798 * VIA 8237: Some BIOSes don't set the 'Bypass APIC De-Assert Message' Bit.
799 * This leads to doubled level interrupt rates.
800 * Set this bit to get rid of cycle wastage.
801 * Otherwise uncritical.
803 static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
806 #define BYPASS_APIC_DEASSERT 8
808 pci_read_config_byte(dev, 0x5B, &misc_control2);
809 if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
810 pci_info(dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
811 pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
814 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
815 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
818 * The AMD io apic can hang the box when an apic irq is masked.
819 * We check all revs >= B0 (yet not in the pre production!) as the bug
820 * is currently marked NoFix
822 * We have multiple reports of hangs with this chipset that went away with
823 * noapic specified. For the moment we assume it's the erratum. We may be wrong
824 * of course. However the advice is demonstrably good even if so..
826 static void quirk_amd_ioapic(struct pci_dev *dev)
828 if (dev->revision >= 0x02) {
829 pci_warn(dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
830 pci_warn(dev, " : booting with the \"noapic\" option\n");
833 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
834 #endif /* CONFIG_X86_IO_APIC */
836 #if defined(CONFIG_ARM64) && defined(CONFIG_PCI_ATS)
838 static void quirk_cavium_sriov_rnm_link(struct pci_dev *dev)
840 /* Fix for improper SRIOV configuration on Cavium cn88xx RNM device */
841 if (dev->subsystem_device == 0xa118)
842 dev->sriov->link = dev->devfn;
844 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CAVIUM, 0xa018, quirk_cavium_sriov_rnm_link);
848 * Some settings of MMRBC can lead to data corruption so block changes.
849 * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
851 static void quirk_amd_8131_mmrbc(struct pci_dev *dev)
853 if (dev->subordinate && dev->revision <= 0x12) {
854 pci_info(dev, "AMD8131 rev %x detected; disabling PCI-X MMRBC\n",
856 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
859 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
862 * FIXME: it is questionable that quirk_via_acpi
863 * is needed. It shows up as an ISA bridge, and does not
864 * support the PCI_INTERRUPT_LINE register at all. Therefore
865 * it seems like setting the pci_dev's 'irq' to the
866 * value of the ACPI SCI interrupt is only done for convenience.
869 static void quirk_via_acpi(struct pci_dev *d)
872 * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
875 pci_read_config_byte(d, 0x42, &irq);
877 if (irq && (irq != 2))
880 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi);
881 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi);
885 * VIA bridges which have VLink
888 static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
890 static void quirk_via_bridge(struct pci_dev *dev)
892 /* See what bridge we have and find the device ranges */
893 switch (dev->device) {
894 case PCI_DEVICE_ID_VIA_82C686:
895 /* The VT82C686 is special, it attaches to PCI and can have
896 any device number. All its subdevices are functions of
897 that single device. */
898 via_vlink_dev_lo = PCI_SLOT(dev->devfn);
899 via_vlink_dev_hi = PCI_SLOT(dev->devfn);
901 case PCI_DEVICE_ID_VIA_8237:
902 case PCI_DEVICE_ID_VIA_8237A:
903 via_vlink_dev_lo = 15;
905 case PCI_DEVICE_ID_VIA_8235:
906 via_vlink_dev_lo = 16;
908 case PCI_DEVICE_ID_VIA_8231:
909 case PCI_DEVICE_ID_VIA_8233_0:
910 case PCI_DEVICE_ID_VIA_8233A:
911 case PCI_DEVICE_ID_VIA_8233C_0:
912 via_vlink_dev_lo = 17;
916 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
917 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
918 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
919 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
920 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
921 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
922 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
923 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
926 * quirk_via_vlink - VIA VLink IRQ number update
929 * If the device we are dealing with is on a PIC IRQ we need to
930 * ensure that the IRQ line register which usually is not relevant
931 * for PCI cards, is actually written so that interrupts get sent
932 * to the right place.
933 * We only do this on systems where a VIA south bridge was detected,
934 * and only for VIA devices on the motherboard (see quirk_via_bridge
938 static void quirk_via_vlink(struct pci_dev *dev)
942 /* Check if we have VLink at all */
943 if (via_vlink_dev_lo == -1)
948 /* Don't quirk interrupts outside the legacy IRQ range */
949 if (!new_irq || new_irq > 15)
952 /* Internal device ? */
953 if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
954 PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
957 /* This is an internal VLink device on a PIC interrupt. The BIOS
958 ought to have set this but may not have, so we redo it */
960 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
961 if (new_irq != irq) {
962 pci_info(dev, "VIA VLink IRQ fixup, from %d to %d\n",
964 udelay(15); /* unknown if delay really needed */
965 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
968 DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
971 * VIA VT82C598 has its device ID settable and many BIOSes
972 * set it to the ID of VT82C597 for backward compatibility.
973 * We need to switch it off to be able to recognize the real
976 static void quirk_vt82c598_id(struct pci_dev *dev)
978 pci_write_config_byte(dev, 0xfc, 0);
979 pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
981 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id);
984 * CardBus controllers have a legacy base address that enables them
985 * to respond as i82365 pcmcia controllers. We don't want them to
986 * do this even if the Linux CardBus driver is not loaded, because
987 * the Linux i82365 driver does not (and should not) handle CardBus.
989 static void quirk_cardbus_legacy(struct pci_dev *dev)
991 pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
993 DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
994 PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy);
995 DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID,
996 PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy);
999 * Following the PCI ordering rules is optional on the AMD762. I'm not
1000 * sure what the designers were smoking but let's not inhale...
1002 * To be fair to AMD, it follows the spec by default, its BIOS people
1005 static void quirk_amd_ordering(struct pci_dev *dev)
1008 pci_read_config_dword(dev, 0x4C, &pcic);
1009 if ((pcic & 6) != 6) {
1011 pci_warn(dev, "BIOS failed to enable PCI standards compliance; fixing this error\n");
1012 pci_write_config_dword(dev, 0x4C, pcic);
1013 pci_read_config_dword(dev, 0x84, &pcic);
1014 pcic |= (1 << 23); /* Required in this mode */
1015 pci_write_config_dword(dev, 0x84, pcic);
1018 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
1019 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
1022 * DreamWorks provided workaround for Dunord I-3000 problem
1024 * This card decodes and responds to addresses not apparently
1025 * assigned to it. We force a larger allocation to ensure that
1026 * nothing gets put too close to it.
1028 static void quirk_dunord(struct pci_dev *dev)
1030 struct resource *r = &dev->resource[1];
1032 r->flags |= IORESOURCE_UNSET;
1036 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord);
1039 * i82380FB mobile docking controller: its PCI-to-PCI bridge
1040 * is subtractive decoding (transparent), and does indicate this
1041 * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
1044 static void quirk_transparent_bridge(struct pci_dev *dev)
1046 dev->transparent = 1;
1048 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge);
1049 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge);
1052 * Common misconfiguration of the MediaGX/Geode PCI master that will
1053 * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
1054 * datasheets found at http://www.national.com/analog for info on what
1055 * these bits do. <christer@weinigel.se>
1057 static void quirk_mediagx_master(struct pci_dev *dev)
1061 pci_read_config_byte(dev, 0x41, ®);
1064 pci_info(dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n",
1066 pci_write_config_byte(dev, 0x41, reg);
1069 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
1070 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
1073 * Ensure C0 rev restreaming is off. This is normally done by
1074 * the BIOS but in the odd case it is not the results are corruption
1075 * hence the presence of a Linux check
1077 static void quirk_disable_pxb(struct pci_dev *pdev)
1081 if (pdev->revision != 0x04) /* Only C0 requires this */
1083 pci_read_config_word(pdev, 0x40, &config);
1084 if (config & (1<<6)) {
1086 pci_write_config_word(pdev, 0x40, config);
1087 pci_info(pdev, "C0 revision 450NX. Disabling PCI restreaming\n");
1090 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
1091 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
1093 static void quirk_amd_ide_mode(struct pci_dev *pdev)
1095 /* set SBX00/Hudson-2 SATA in IDE mode to AHCI mode */
1098 pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
1100 pci_read_config_byte(pdev, 0x40, &tmp);
1101 pci_write_config_byte(pdev, 0x40, tmp|1);
1102 pci_write_config_byte(pdev, 0x9, 1);
1103 pci_write_config_byte(pdev, 0xa, 6);
1104 pci_write_config_byte(pdev, 0x40, tmp);
1106 pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
1107 pci_info(pdev, "set SATA to AHCI mode\n");
1110 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
1111 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
1112 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
1113 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
1114 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
1115 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode);
1116 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode);
1117 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode);
1120 * Serverworks CSB5 IDE does not fully support native mode
1122 static void quirk_svwks_csb5ide(struct pci_dev *pdev)
1125 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
1129 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
1130 /* PCI layer will sort out resources */
1133 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
1136 * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
1138 static void quirk_ide_samemode(struct pci_dev *pdev)
1142 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
1144 if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
1145 pci_info(pdev, "IDE mode mismatch; forcing legacy mode\n");
1148 pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
1151 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
1154 * Some ATA devices break if put into D3
1157 static void quirk_no_ata_d3(struct pci_dev *pdev)
1159 pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
1161 /* Quirk the legacy ATA devices only. The AHCI ones are ok */
1162 DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID,
1163 PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
1164 DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
1165 PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
1166 /* ALi loses some register settings that we cannot then restore */
1167 DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID,
1168 PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
1169 /* VIA comes back fine but we need to keep it alive or ACPI GTM failures
1170 occur when mode detecting */
1171 DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID,
1172 PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
1174 /* This was originally an Alpha specific thing, but it really fits here.
1175 * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
1177 static void quirk_eisa_bridge(struct pci_dev *dev)
1179 dev->class = PCI_CLASS_BRIDGE_EISA << 8;
1181 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge);
1185 * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
1186 * is not activated. The myth is that Asus said that they do not want the
1187 * users to be irritated by just another PCI Device in the Win98 device
1188 * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
1189 * package 2.7.0 for details)
1191 * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
1192 * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
1193 * becomes necessary to do this tweak in two steps -- the chosen trigger
1194 * is either the Host bridge (preferred) or on-board VGA controller.
1196 * Note that we used to unhide the SMBus that way on Toshiba laptops
1197 * (Satellite A40 and Tecra M2) but then found that the thermal management
1198 * was done by SMM code, which could cause unsynchronized concurrent
1199 * accesses to the SMBus registers, with potentially bad effects. Thus you
1200 * should be very careful when adding new entries: if SMM is accessing the
1201 * Intel SMBus, this is a very good reason to leave it hidden.
1203 * Likewise, many recent laptops use ACPI for thermal management. If the
1204 * ACPI DSDT code accesses the SMBus, then Linux should not access it
1205 * natively, and keeping the SMBus hidden is the right thing to do. If you
1206 * are about to add an entry in the table below, please first disassemble
1207 * the DSDT and double-check that there is no code accessing the SMBus.
1209 static int asus_hides_smbus;
1211 static void asus_hides_smbus_hostbridge(struct pci_dev *dev)
1213 if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1214 if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
1215 switch (dev->subsystem_device) {
1216 case 0x8025: /* P4B-LX */
1217 case 0x8070: /* P4B */
1218 case 0x8088: /* P4B533 */
1219 case 0x1626: /* L3C notebook */
1220 asus_hides_smbus = 1;
1222 else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
1223 switch (dev->subsystem_device) {
1224 case 0x80b1: /* P4GE-V */
1225 case 0x80b2: /* P4PE */
1226 case 0x8093: /* P4B533-V */
1227 asus_hides_smbus = 1;
1229 else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
1230 switch (dev->subsystem_device) {
1231 case 0x8030: /* P4T533 */
1232 asus_hides_smbus = 1;
1234 else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
1235 switch (dev->subsystem_device) {
1236 case 0x8070: /* P4G8X Deluxe */
1237 asus_hides_smbus = 1;
1239 else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
1240 switch (dev->subsystem_device) {
1241 case 0x80c9: /* PU-DLS */
1242 asus_hides_smbus = 1;
1244 else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
1245 switch (dev->subsystem_device) {
1246 case 0x1751: /* M2N notebook */
1247 case 0x1821: /* M5N notebook */
1248 case 0x1897: /* A6L notebook */
1249 asus_hides_smbus = 1;
1251 else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1252 switch (dev->subsystem_device) {
1253 case 0x184b: /* W1N notebook */
1254 case 0x186a: /* M6Ne notebook */
1255 asus_hides_smbus = 1;
1257 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
1258 switch (dev->subsystem_device) {
1259 case 0x80f2: /* P4P800-X */
1260 asus_hides_smbus = 1;
1262 else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
1263 switch (dev->subsystem_device) {
1264 case 0x1882: /* M6V notebook */
1265 case 0x1977: /* A6VA notebook */
1266 asus_hides_smbus = 1;
1268 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
1269 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1270 switch (dev->subsystem_device) {
1271 case 0x088C: /* HP Compaq nc8000 */
1272 case 0x0890: /* HP Compaq nc6000 */
1273 asus_hides_smbus = 1;
1275 else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
1276 switch (dev->subsystem_device) {
1277 case 0x12bc: /* HP D330L */
1278 case 0x12bd: /* HP D530 */
1279 case 0x006a: /* HP Compaq nx9500 */
1280 asus_hides_smbus = 1;
1282 else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
1283 switch (dev->subsystem_device) {
1284 case 0x12bf: /* HP xw4100 */
1285 asus_hides_smbus = 1;
1287 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
1288 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1289 switch (dev->subsystem_device) {
1290 case 0xC00C: /* Samsung P35 notebook */
1291 asus_hides_smbus = 1;
1293 } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
1294 if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
1295 switch (dev->subsystem_device) {
1296 case 0x0058: /* Compaq Evo N620c */
1297 asus_hides_smbus = 1;
1299 else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
1300 switch (dev->subsystem_device) {
1301 case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
1302 /* Motherboard doesn't have Host bridge
1303 * subvendor/subdevice IDs, therefore checking
1304 * its on-board VGA controller */
1305 asus_hides_smbus = 1;
1307 else if (dev->device == PCI_DEVICE_ID_INTEL_82801DB_2)
1308 switch (dev->subsystem_device) {
1309 case 0x00b8: /* Compaq Evo D510 CMT */
1310 case 0x00b9: /* Compaq Evo D510 SFF */
1311 case 0x00ba: /* Compaq Evo D510 USDT */
1312 /* Motherboard doesn't have Host bridge
1313 * subvendor/subdevice IDs and on-board VGA
1314 * controller is disabled if an AGP card is
1315 * inserted, therefore checking USB UHCI
1317 asus_hides_smbus = 1;
1319 else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC)
1320 switch (dev->subsystem_device) {
1321 case 0x001A: /* Compaq Deskpro EN SSF P667 815E */
1322 /* Motherboard doesn't have host bridge
1323 * subvendor/subdevice IDs, therefore checking
1324 * its on-board VGA controller */
1325 asus_hides_smbus = 1;
1329 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge);
1330 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge);
1331 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge);
1332 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge);
1333 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge);
1334 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge);
1335 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge);
1336 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge);
1337 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge);
1338 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
1340 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge);
1341 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_2, asus_hides_smbus_hostbridge);
1342 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge);
1344 static void asus_hides_smbus_lpc(struct pci_dev *dev)
1348 if (likely(!asus_hides_smbus))
1351 pci_read_config_word(dev, 0xF2, &val);
1353 pci_write_config_word(dev, 0xF2, val & (~0x8));
1354 pci_read_config_word(dev, 0xF2, &val);
1356 pci_info(dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n",
1359 pci_info(dev, "Enabled i801 SMBus device\n");
1362 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1363 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1364 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1365 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1366 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1367 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1368 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
1369 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
1370 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
1371 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
1372 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
1373 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
1374 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
1375 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
1377 /* It appears we just have one such device. If not, we have a warning */
1378 static void __iomem *asus_rcba_base;
1379 static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev)
1383 if (likely(!asus_hides_smbus))
1385 WARN_ON(asus_rcba_base);
1387 pci_read_config_dword(dev, 0xF0, &rcba);
1388 /* use bits 31:14, 16 kB aligned */
1389 asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000);
1390 if (asus_rcba_base == NULL)
1394 static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev)
1398 if (likely(!asus_hides_smbus || !asus_rcba_base))
1400 /* read the Function Disable register, dword mode only */
1401 val = readl(asus_rcba_base + 0x3418);
1402 writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */
1405 static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev)
1407 if (likely(!asus_hides_smbus || !asus_rcba_base))
1409 iounmap(asus_rcba_base);
1410 asus_rcba_base = NULL;
1411 pci_info(dev, "Enabled ICH6/i801 SMBus device\n");
1414 static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
1416 asus_hides_smbus_lpc_ich6_suspend(dev);
1417 asus_hides_smbus_lpc_ich6_resume_early(dev);
1418 asus_hides_smbus_lpc_ich6_resume(dev);
1420 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6);
1421 DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend);
1422 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume);
1423 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early);
1426 * SiS 96x south bridge: BIOS typically hides SMBus device...
1428 static void quirk_sis_96x_smbus(struct pci_dev *dev)
1431 pci_read_config_byte(dev, 0x77, &val);
1433 pci_info(dev, "Enabling SiS 96x SMBus\n");
1434 pci_write_config_byte(dev, 0x77, val & ~0x10);
1437 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1438 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1439 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1440 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
1441 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
1442 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
1443 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
1444 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
1447 * ... This is further complicated by the fact that some SiS96x south
1448 * bridges pretend to be 85C503/5513 instead. In that case see if we
1449 * spotted a compatible north bridge to make sure.
1450 * (pci_find_device doesn't work yet)
1452 * We can also enable the sis96x bit in the discovery register..
1454 #define SIS_DETECT_REGISTER 0x40
1456 static void quirk_sis_503(struct pci_dev *dev)
1461 pci_read_config_byte(dev, SIS_DETECT_REGISTER, ®);
1462 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
1463 pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
1464 if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
1465 pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
1470 * Ok, it now shows up as a 96x.. run the 96x quirk by
1471 * hand in case it has already been processed.
1472 * (depends on link order, which is apparently not guaranteed)
1474 dev->device = devid;
1475 quirk_sis_96x_smbus(dev);
1477 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
1478 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
1482 * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
1483 * and MC97 modem controller are disabled when a second PCI soundcard is
1484 * present. This patch, tweaking the VT8237 ISA bridge, enables them.
1487 static void asus_hides_ac97_lpc(struct pci_dev *dev)
1490 int asus_hides_ac97 = 0;
1492 if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
1493 if (dev->device == PCI_DEVICE_ID_VIA_8237)
1494 asus_hides_ac97 = 1;
1497 if (!asus_hides_ac97)
1500 pci_read_config_byte(dev, 0x50, &val);
1502 pci_write_config_byte(dev, 0x50, val & (~0xc0));
1503 pci_read_config_byte(dev, 0x50, &val);
1505 pci_info(dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n",
1508 pci_info(dev, "Enabled onboard AC97/MC97 devices\n");
1511 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
1512 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
1514 #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
1517 * If we are using libata we can drive this chip properly but must
1518 * do this early on to make the additional device appear during
1521 static void quirk_jmicron_ata(struct pci_dev *pdev)
1523 u32 conf1, conf5, class;
1526 /* Only poke fn 0 */
1527 if (PCI_FUNC(pdev->devfn))
1530 pci_read_config_dword(pdev, 0x40, &conf1);
1531 pci_read_config_dword(pdev, 0x80, &conf5);
1533 conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
1534 conf5 &= ~(1 << 24); /* Clear bit 24 */
1536 switch (pdev->device) {
1537 case PCI_DEVICE_ID_JMICRON_JMB360: /* SATA single port */
1538 case PCI_DEVICE_ID_JMICRON_JMB362: /* SATA dual ports */
1539 case PCI_DEVICE_ID_JMICRON_JMB364: /* SATA dual ports */
1540 /* The controller should be in single function ahci mode */
1541 conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
1544 case PCI_DEVICE_ID_JMICRON_JMB365:
1545 case PCI_DEVICE_ID_JMICRON_JMB366:
1546 /* Redirect IDE second PATA port to the right spot */
1549 case PCI_DEVICE_ID_JMICRON_JMB361:
1550 case PCI_DEVICE_ID_JMICRON_JMB363:
1551 case PCI_DEVICE_ID_JMICRON_JMB369:
1552 /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
1553 /* Set the class codes correctly and then direct IDE 0 */
1554 conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
1557 case PCI_DEVICE_ID_JMICRON_JMB368:
1558 /* The controller should be in single function IDE mode */
1559 conf1 |= 0x00C00000; /* Set 22, 23 */
1563 pci_write_config_dword(pdev, 0x40, conf1);
1564 pci_write_config_dword(pdev, 0x80, conf5);
1566 /* Update pdev accordingly */
1567 pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
1568 pdev->hdr_type = hdr & 0x7f;
1569 pdev->multifunction = !!(hdr & 0x80);
1571 pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
1572 pdev->class = class >> 8;
1574 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1575 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1576 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
1577 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1578 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata);
1579 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1580 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1581 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1582 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata);
1583 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
1584 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
1585 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata);
1586 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
1587 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata);
1588 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
1589 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
1590 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
1591 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata);
1595 static void quirk_jmicron_async_suspend(struct pci_dev *dev)
1597 if (dev->multifunction) {
1598 device_disable_async_suspend(&dev->dev);
1599 pci_info(dev, "async suspend disabled to avoid multi-function power-on ordering issue\n");
1602 DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE, 8, quirk_jmicron_async_suspend);
1603 DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_CLASS_STORAGE_SATA_AHCI, 0, quirk_jmicron_async_suspend);
1604 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_JMICRON, 0x2362, quirk_jmicron_async_suspend);
1605 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_JMICRON, 0x236f, quirk_jmicron_async_suspend);
1607 #ifdef CONFIG_X86_IO_APIC
1608 static void quirk_alder_ioapic(struct pci_dev *pdev)
1612 if ((pdev->class >> 8) != 0xff00)
1615 /* the first BAR is the location of the IO APIC...we must
1616 * not touch this (and it's already covered by the fixmap), so
1617 * forcibly insert it into the resource tree */
1618 if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
1619 insert_resource(&iomem_resource, &pdev->resource[0]);
1621 /* The next five BARs all seem to be rubbish, so just clean
1623 for (i = 1; i < 6; i++)
1624 memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
1626 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
1629 static void quirk_pcie_mch(struct pci_dev *pdev)
1633 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
1634 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
1635 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
1637 DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_HUAWEI, 0x1610, PCI_CLASS_BRIDGE_PCI, 8, quirk_pcie_mch);
1640 * It's possible for the MSI to get corrupted if shpc and acpi
1641 * are used together on certain PXH-based systems.
1643 static void quirk_pcie_pxh(struct pci_dev *dev)
1646 pci_warn(dev, "PXH quirk detected; SHPC device MSI disabled\n");
1648 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
1649 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
1650 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
1651 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
1652 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
1655 * Some Intel PCI Express chipsets have trouble with downstream
1656 * device power management.
1658 static void quirk_intel_pcie_pm(struct pci_dev *dev)
1660 pci_pm_d3_delay = 120;
1664 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
1665 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
1666 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
1667 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
1668 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
1669 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
1670 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
1671 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
1672 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
1673 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
1674 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
1675 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
1676 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
1677 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
1678 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
1679 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
1680 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
1681 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
1682 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
1683 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
1684 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
1686 static void quirk_radeon_pm(struct pci_dev *dev)
1688 if (dev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
1689 dev->subsystem_device == 0x00e2) {
1690 if (dev->d3_delay < 20) {
1692 pci_info(dev, "extending delay after power-on from D3 to %d msec\n",
1697 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6741, quirk_radeon_pm);
1699 #ifdef CONFIG_X86_IO_APIC
1700 static int dmi_disable_ioapicreroute(const struct dmi_system_id *d)
1702 noioapicreroute = 1;
1703 pr_info("%s detected: disable boot interrupt reroute\n", d->ident);
1708 static const struct dmi_system_id boot_interrupt_dmi_table[] = {
1710 * Systems to exclude from boot interrupt reroute quirks
1713 .callback = dmi_disable_ioapicreroute,
1714 .ident = "ASUSTek Computer INC. M2N-LR",
1716 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTek Computer INC."),
1717 DMI_MATCH(DMI_PRODUCT_NAME, "M2N-LR"),
1724 * Boot interrupts on some chipsets cannot be turned off. For these chipsets,
1725 * remap the original interrupt in the linux kernel to the boot interrupt, so
1726 * that a PCI device's interrupt handler is installed on the boot interrupt
1729 static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev)
1731 dmi_check_system(boot_interrupt_dmi_table);
1732 if (noioapicquirk || noioapicreroute)
1735 dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT;
1736 pci_info(dev, "rerouting interrupts for [%04x:%04x]\n",
1737 dev->vendor, dev->device);
1739 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1740 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1741 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1742 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1743 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1744 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1745 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1746 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
1747 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
1748 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
1749 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
1750 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
1751 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
1752 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
1753 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
1754 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
1757 * On some chipsets we can disable the generation of legacy INTx boot
1762 * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no
1763 * 300641-004US, section 5.7.3.
1765 #define INTEL_6300_IOAPIC_ABAR 0x40
1766 #define INTEL_6300_DISABLE_BOOT_IRQ (1<<14)
1768 static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
1770 u16 pci_config_word;
1775 pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word);
1776 pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ;
1777 pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word);
1779 pci_info(dev, "disabled boot interrupts on device [%04x:%04x]\n",
1780 dev->vendor, dev->device);
1782 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
1783 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
1786 * disable boot interrupts on HT-1000
1788 #define BC_HT1000_FEATURE_REG 0x64
1789 #define BC_HT1000_PIC_REGS_ENABLE (1<<0)
1790 #define BC_HT1000_MAP_IDX 0xC00
1791 #define BC_HT1000_MAP_DATA 0xC01
1793 static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
1795 u32 pci_config_dword;
1801 pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
1802 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
1803 BC_HT1000_PIC_REGS_ENABLE);
1805 for (irq = 0x10; irq < 0x10 + 32; irq++) {
1806 outb(irq, BC_HT1000_MAP_IDX);
1807 outb(0x00, BC_HT1000_MAP_DATA);
1810 pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
1812 pci_info(dev, "disabled boot interrupts on device [%04x:%04x]\n",
1813 dev->vendor, dev->device);
1815 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
1816 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
1819 * disable boot interrupts on AMD and ATI chipsets
1822 * NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131
1823 * rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode
1824 * (due to an erratum).
1826 #define AMD_813X_MISC 0x40
1827 #define AMD_813X_NOIOAMODE (1<<0)
1828 #define AMD_813X_REV_B1 0x12
1829 #define AMD_813X_REV_B2 0x13
1831 static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
1833 u32 pci_config_dword;
1837 if ((dev->revision == AMD_813X_REV_B1) ||
1838 (dev->revision == AMD_813X_REV_B2))
1841 pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
1842 pci_config_dword &= ~AMD_813X_NOIOAMODE;
1843 pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword);
1845 pci_info(dev, "disabled boot interrupts on device [%04x:%04x]\n",
1846 dev->vendor, dev->device);
1848 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1849 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1850 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1851 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
1853 #define AMD_8111_PCI_IRQ_ROUTING 0x56
1855 static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev)
1857 u16 pci_config_word;
1862 pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word);
1863 if (!pci_config_word) {
1864 pci_info(dev, "boot interrupts on device [%04x:%04x] already disabled\n",
1865 dev->vendor, dev->device);
1868 pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0);
1869 pci_info(dev, "disabled boot interrupts on device [%04x:%04x]\n",
1870 dev->vendor, dev->device);
1872 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
1873 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
1874 #endif /* CONFIG_X86_IO_APIC */
1877 * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
1878 * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
1879 * Re-allocate the region if needed...
1881 static void quirk_tc86c001_ide(struct pci_dev *dev)
1883 struct resource *r = &dev->resource[0];
1885 if (r->start & 0x8) {
1886 r->flags |= IORESOURCE_UNSET;
1891 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
1892 PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
1893 quirk_tc86c001_ide);
1896 * PLX PCI 9050 PCI Target bridge controller has an errata that prevents the
1897 * local configuration registers accessible via BAR0 (memory) or BAR1 (i/o)
1898 * being read correctly if bit 7 of the base address is set.
1899 * The BAR0 or BAR1 region may be disabled (size 0) or enabled (size 128).
1900 * Re-allocate the regions to a 256-byte boundary if necessary.
1902 static void quirk_plx_pci9050(struct pci_dev *dev)
1906 /* Fixed in revision 2 (PCI 9052). */
1907 if (dev->revision >= 2)
1909 for (bar = 0; bar <= 1; bar++)
1910 if (pci_resource_len(dev, bar) == 0x80 &&
1911 (pci_resource_start(dev, bar) & 0x80)) {
1912 struct resource *r = &dev->resource[bar];
1913 pci_info(dev, "Re-allocating PLX PCI 9050 BAR %u to length 256 to avoid bit 7 bug\n",
1915 r->flags |= IORESOURCE_UNSET;
1920 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
1923 * The following Meilhaus (vendor ID 0x1402) device IDs (amongst others)
1924 * may be using the PLX PCI 9050: 0x0630, 0x0940, 0x0950, 0x0960, 0x100b,
1925 * 0x1400, 0x140a, 0x140b, 0x14e0, 0x14ea, 0x14eb, 0x1604, 0x1608, 0x160c,
1926 * 0x168f, 0x2000, 0x2600, 0x3000, 0x810a, 0x810b.
1928 * Currently, device IDs 0x2000 and 0x2600 are used by the Comedi "me_daq"
1931 DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2000, quirk_plx_pci9050);
1932 DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2600, quirk_plx_pci9050);
1934 static void quirk_netmos(struct pci_dev *dev)
1936 unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
1937 unsigned int num_serial = dev->subsystem_device & 0xf;
1940 * These Netmos parts are multiport serial devices with optional
1941 * parallel ports. Even when parallel ports are present, they
1942 * are identified as class SERIAL, which means the serial driver
1943 * will claim them. To prevent this, mark them as class OTHER.
1944 * These combo devices should be claimed by parport_serial.
1946 * The subdevice ID is of the form 0x00PS, where <P> is the number
1947 * of parallel ports and <S> is the number of serial ports.
1949 switch (dev->device) {
1950 case PCI_DEVICE_ID_NETMOS_9835:
1951 /* Well, this rule doesn't hold for the following 9835 device */
1952 if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
1953 dev->subsystem_device == 0x0299)
1955 case PCI_DEVICE_ID_NETMOS_9735:
1956 case PCI_DEVICE_ID_NETMOS_9745:
1957 case PCI_DEVICE_ID_NETMOS_9845:
1958 case PCI_DEVICE_ID_NETMOS_9855:
1960 pci_info(dev, "Netmos %04x (%u parallel, %u serial); changing class SERIAL to OTHER (use parport_serial)\n",
1961 dev->device, num_parallel, num_serial);
1962 dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
1963 (dev->class & 0xff);
1967 DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID,
1968 PCI_CLASS_COMMUNICATION_SERIAL, 8, quirk_netmos);
1970 static void quirk_e100_interrupt(struct pci_dev *dev)
1976 switch (dev->device) {
1977 /* PCI IDs taken from drivers/net/e100.c */
1979 case 0x1030 ... 0x1034:
1980 case 0x1038 ... 0x103E:
1981 case 0x1050 ... 0x1057:
1983 case 0x1064 ... 0x106B:
1984 case 0x1091 ... 0x1095:
1997 * Some firmware hands off the e100 with interrupts enabled,
1998 * which can cause a flood of interrupts if packets are
1999 * received before the driver attaches to the device. So
2000 * disable all e100 interrupts here. The driver will
2001 * re-enable them when it's ready.
2003 pci_read_config_word(dev, PCI_COMMAND, &command);
2005 if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
2009 * Check that the device is in the D0 power state. If it's not,
2010 * there is no point to look any further.
2013 pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr);
2014 if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
2018 /* Convert from PCI bus to resource space. */
2019 csr = ioremap(pci_resource_start(dev, 0), 8);
2021 pci_warn(dev, "Can't map e100 registers\n");
2025 cmd_hi = readb(csr + 3);
2027 pci_warn(dev, "Firmware left e100 interrupts enabled; disabling\n");
2033 DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
2034 PCI_CLASS_NETWORK_ETHERNET, 8, quirk_e100_interrupt);
2037 * The 82575 and 82598 may experience data corruption issues when transitioning
2038 * out of L0S. To prevent this we need to disable L0S on the PCIe link.
2040 static void quirk_disable_aspm_l0s(struct pci_dev *dev)
2042 pci_info(dev, "Disabling L0s\n");
2043 pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
2045 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s);
2046 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s);
2047 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s);
2048 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s);
2049 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s);
2050 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s);
2051 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s);
2052 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s);
2053 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s);
2054 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s);
2055 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s);
2056 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
2057 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
2058 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
2060 static void fixup_rev1_53c810(struct pci_dev *dev)
2062 u32 class = dev->class;
2065 * rev 1 ncr53c810 chips don't set the class at all which means
2066 * they don't get their resources remapped. Fix that here.
2071 dev->class = PCI_CLASS_STORAGE_SCSI << 8;
2072 pci_info(dev, "NCR 53c810 rev 1 PCI class overridden (%#08x -> %#08x)\n",
2075 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
2077 /* Enable 1k I/O space granularity on the Intel P64H2 */
2078 static void quirk_p64h2_1k_io(struct pci_dev *dev)
2082 pci_read_config_word(dev, 0x40, &en1k);
2085 pci_info(dev, "Enable I/O Space to 1KB granularity\n");
2086 dev->io_window_1k = 1;
2089 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
2091 /* Under some circumstances, AER is not linked with extended capabilities.
2092 * Force it to be linked by setting the corresponding control bit in the
2095 static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
2098 if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
2100 pci_write_config_byte(dev, 0xf41, b | 0x20);
2101 pci_info(dev, "Linking AER extended capability\n");
2105 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2106 quirk_nvidia_ck804_pcie_aer_ext_cap);
2107 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2108 quirk_nvidia_ck804_pcie_aer_ext_cap);
2110 static void quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
2113 * Disable PCI Bus Parking and PCI Master read caching on CX700
2114 * which causes unspecified timing errors with a VT6212L on the PCI
2115 * bus leading to USB2.0 packet loss.
2117 * This quirk is only enabled if a second (on the external PCI bus)
2118 * VT6212L is found -- the CX700 core itself also contains a USB
2119 * host controller with the same PCI ID as the VT6212L.
2122 /* Count VT6212L instances */
2123 struct pci_dev *p = pci_get_device(PCI_VENDOR_ID_VIA,
2124 PCI_DEVICE_ID_VIA_8235_USB_2, NULL);
2127 /* p should contain the first (internal) VT6212L -- see if we have
2128 an external one by searching again */
2129 p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235_USB_2, p);
2134 if (pci_read_config_byte(dev, 0x76, &b) == 0) {
2136 /* Turn off PCI Bus Parking */
2137 pci_write_config_byte(dev, 0x76, b ^ 0x40);
2139 pci_info(dev, "Disabling VIA CX700 PCI parking\n");
2143 if (pci_read_config_byte(dev, 0x72, &b) == 0) {
2145 /* Turn off PCI Master read caching */
2146 pci_write_config_byte(dev, 0x72, 0x0);
2148 /* Set PCI Master Bus time-out to "1x16 PCLK" */
2149 pci_write_config_byte(dev, 0x75, 0x1);
2151 /* Disable "Read FIFO Timer" */
2152 pci_write_config_byte(dev, 0x77, 0x0);
2154 pci_info(dev, "Disabling VIA CX700 PCI caching\n");
2158 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
2160 static void quirk_brcm_5719_limit_mrrs(struct pci_dev *dev)
2164 pci_read_config_dword(dev, 0xf4, &rev);
2166 /* Only CAP the MRRS if the device is a 5719 A0 */
2167 if (rev == 0x05719000) {
2168 int readrq = pcie_get_readrq(dev);
2170 pcie_set_readrq(dev, 2048);
2174 DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_BROADCOM,
2175 PCI_DEVICE_ID_TIGON3_5719,
2176 quirk_brcm_5719_limit_mrrs);
2178 #ifdef CONFIG_PCIE_IPROC_PLATFORM
2179 static void quirk_paxc_bridge(struct pci_dev *pdev)
2181 /* The PCI config space is shared with the PAXC root port and the first
2182 * Ethernet device. So, we need to workaround this by telling the PCI
2183 * code that the bridge is not an Ethernet device.
2185 if (pdev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
2186 pdev->class = PCI_CLASS_BRIDGE_PCI << 8;
2188 /* MPSS is not being set properly (as it is currently 0). This is
2189 * because that area of the PCI config space is hard coded to zero, and
2190 * is not modifiable by firmware. Set this to 2 (e.g., 512 byte MPS)
2191 * so that the MPS can be set to the real max value.
2193 pdev->pcie_mpss = 2;
2195 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x16cd, quirk_paxc_bridge);
2196 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x16f0, quirk_paxc_bridge);
2199 /* Originally in EDAC sources for i82875P:
2200 * Intel tells BIOS developers to hide device 6 which
2201 * configures the overflow device access containing
2202 * the DRBs - this is where we expose device 6.
2203 * http://www.x86-secret.com/articles/tweak/pat/patsecrets-2.htm
2205 static void quirk_unhide_mch_dev6(struct pci_dev *dev)
2209 if (pci_read_config_byte(dev, 0xF4, ®) == 0 && !(reg & 0x02)) {
2210 pci_info(dev, "Enabling MCH 'Overflow' Device\n");
2211 pci_write_config_byte(dev, 0xF4, reg | 0x02);
2215 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB,
2216 quirk_unhide_mch_dev6);
2217 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB,
2218 quirk_unhide_mch_dev6);
2220 #ifdef CONFIG_TILEPRO
2222 * The Tilera TILEmpower tilepro platform needs to set the link speed
2223 * to 2.5GT(Giga-Transfers)/s (Gen 1). The default link speed
2224 * setting is 5GT/s (Gen 2). 0x98 is the Link Control2 PCIe
2225 * capability register of the PEX8624 PCIe switch. The switch
2226 * supports link speed auto negotiation, but falsely sets
2227 * the link speed to 5GT/s.
2229 static void quirk_tile_plx_gen1(struct pci_dev *dev)
2231 if (tile_plx_gen1) {
2232 pci_write_config_dword(dev, 0x98, 0x1);
2236 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8624, quirk_tile_plx_gen1);
2237 #endif /* CONFIG_TILEPRO */
2239 #ifdef CONFIG_PCI_MSI
2240 /* Some chipsets do not support MSI. We cannot easily rely on setting
2241 * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
2242 * some other buses controlled by the chipset even if Linux is not
2243 * aware of it. Instead of setting the flag on all buses in the
2244 * machine, simply disable MSI globally.
2246 static void quirk_disable_all_msi(struct pci_dev *dev)
2249 pci_warn(dev, "MSI quirk detected; MSI disabled\n");
2251 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
2252 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
2253 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
2254 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
2255 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
2256 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi);
2257 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi);
2258 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, 0x0761, quirk_disable_all_msi);
2260 /* Disable MSI on chipsets that are known to not support it */
2261 static void quirk_disable_msi(struct pci_dev *dev)
2263 if (dev->subordinate) {
2264 pci_warn(dev, "MSI quirk detected; subordinate MSI disabled\n");
2265 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2268 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
2269 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0xa238, quirk_disable_msi);
2270 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x5a3f, quirk_disable_msi);
2273 * The APC bridge device in AMD 780 family northbridges has some random
2274 * OEM subsystem ID in its vendor ID register (erratum 18), so instead
2275 * we use the possible vendor/device IDs of the host bridge for the
2276 * declared quirk, and search for the APC bridge by slot number.
2278 static void quirk_amd_780_apc_msi(struct pci_dev *host_bridge)
2280 struct pci_dev *apc_bridge;
2282 apc_bridge = pci_get_slot(host_bridge->bus, PCI_DEVFN(1, 0));
2284 if (apc_bridge->device == 0x9602)
2285 quirk_disable_msi(apc_bridge);
2286 pci_dev_put(apc_bridge);
2289 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9600, quirk_amd_780_apc_msi);
2290 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9601, quirk_amd_780_apc_msi);
2292 /* Go through the list of Hypertransport capabilities and
2293 * return 1 if a HT MSI capability is found and enabled */
2294 static int msi_ht_cap_enabled(struct pci_dev *dev)
2296 int pos, ttl = PCI_FIND_CAP_TTL;
2298 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2299 while (pos && ttl--) {
2302 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2304 pci_info(dev, "Found %s HT MSI Mapping\n",
2305 flags & HT_MSI_FLAGS_ENABLE ?
2306 "enabled" : "disabled");
2307 return (flags & HT_MSI_FLAGS_ENABLE) != 0;
2310 pos = pci_find_next_ht_capability(dev, pos,
2311 HT_CAPTYPE_MSI_MAPPING);
2316 /* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
2317 static void quirk_msi_ht_cap(struct pci_dev *dev)
2319 if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
2320 pci_warn(dev, "MSI quirk detected; subordinate MSI disabled\n");
2321 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2324 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
2327 /* The nVidia CK804 chipset may have 2 HT MSI mappings.
2328 * MSI are supported if the MSI capability set in any of these mappings.
2330 static void quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
2332 struct pci_dev *pdev;
2334 if (!dev->subordinate)
2337 /* check HT MSI cap on this chipset and the root one.
2338 * a single one having MSI is enough to be sure that MSI are supported.
2340 pdev = pci_get_slot(dev->bus, 0);
2343 if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
2344 pci_warn(dev, "MSI quirk detected; subordinate MSI disabled\n");
2345 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2349 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
2350 quirk_nvidia_ck804_msi_ht_cap);
2352 /* Force enable MSI mapping capability on HT bridges */
2353 static void ht_enable_msi_mapping(struct pci_dev *dev)
2355 int pos, ttl = PCI_FIND_CAP_TTL;
2357 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2358 while (pos && ttl--) {
2361 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2363 pci_info(dev, "Enabling HT MSI Mapping\n");
2365 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2366 flags | HT_MSI_FLAGS_ENABLE);
2368 pos = pci_find_next_ht_capability(dev, pos,
2369 HT_CAPTYPE_MSI_MAPPING);
2372 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
2373 PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
2374 ht_enable_msi_mapping);
2376 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
2377 ht_enable_msi_mapping);
2379 /* The P5N32-SLI motherboards from Asus have a problem with msi
2380 * for the MCP55 NIC. It is not yet determined whether the msi problem
2381 * also affects other devices. As for now, turn off msi for this device.
2383 static void nvenet_msi_disable(struct pci_dev *dev)
2385 const char *board_name = dmi_get_system_info(DMI_BOARD_NAME);
2388 (strstr(board_name, "P5N32-SLI PREMIUM") ||
2389 strstr(board_name, "P5N32-E SLI"))) {
2390 pci_info(dev, "Disabling MSI for MCP55 NIC on P5N32-SLI\n");
2394 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2395 PCI_DEVICE_ID_NVIDIA_NVENET_15,
2396 nvenet_msi_disable);
2399 * Some versions of the MCP55 bridge from Nvidia have a legacy IRQ routing
2400 * config register. This register controls the routing of legacy
2401 * interrupts from devices that route through the MCP55. If this register
2402 * is misprogrammed, interrupts are only sent to the BSP, unlike
2403 * conventional systems where the IRQ is broadcast to all online CPUs. Not
2404 * having this register set properly prevents kdump from booting up
2405 * properly, so let's make sure that we have it set correctly.
2406 * Note that this is an undocumented register.
2408 static void nvbridge_check_legacy_irq_routing(struct pci_dev *dev)
2412 if (!pci_find_capability(dev, PCI_CAP_ID_HT))
2415 pci_read_config_dword(dev, 0x74, &cfg);
2417 if (cfg & ((1 << 2) | (1 << 15))) {
2418 printk(KERN_INFO "Rewriting irq routing register on MCP55\n");
2419 cfg &= ~((1 << 2) | (1 << 15));
2420 pci_write_config_dword(dev, 0x74, cfg);
2424 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2425 PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V0,
2426 nvbridge_check_legacy_irq_routing);
2428 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
2429 PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V4,
2430 nvbridge_check_legacy_irq_routing);
2432 static int ht_check_msi_mapping(struct pci_dev *dev)
2434 int pos, ttl = PCI_FIND_CAP_TTL;
2437 /* check if there is HT MSI cap or enabled on this device */
2438 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2439 while (pos && ttl--) {
2444 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2446 if (flags & HT_MSI_FLAGS_ENABLE) {
2453 pos = pci_find_next_ht_capability(dev, pos,
2454 HT_CAPTYPE_MSI_MAPPING);
2460 static int host_bridge_with_leaf(struct pci_dev *host_bridge)
2462 struct pci_dev *dev;
2467 dev_no = host_bridge->devfn >> 3;
2468 for (i = dev_no + 1; i < 0x20; i++) {
2469 dev = pci_get_slot(host_bridge->bus, PCI_DEVFN(i, 0));
2473 /* found next host bridge ?*/
2474 pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
2480 if (ht_check_msi_mapping(dev)) {
2491 #define PCI_HT_CAP_SLAVE_CTRL0 4 /* link control */
2492 #define PCI_HT_CAP_SLAVE_CTRL1 8 /* link control to */
2494 static int is_end_of_ht_chain(struct pci_dev *dev)
2500 pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE);
2505 pci_read_config_word(dev, pos + PCI_CAP_FLAGS, &flags);
2507 ctrl_off = ((flags >> 10) & 1) ?
2508 PCI_HT_CAP_SLAVE_CTRL0 : PCI_HT_CAP_SLAVE_CTRL1;
2509 pci_read_config_word(dev, pos + ctrl_off, &ctrl);
2511 if (ctrl & (1 << 6))
2518 static void nv_ht_enable_msi_mapping(struct pci_dev *dev)
2520 struct pci_dev *host_bridge;
2525 dev_no = dev->devfn >> 3;
2526 for (i = dev_no; i >= 0; i--) {
2527 host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0));
2531 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
2536 pci_dev_put(host_bridge);
2542 /* don't enable end_device/host_bridge with leaf directly here */
2543 if (host_bridge == dev && is_end_of_ht_chain(host_bridge) &&
2544 host_bridge_with_leaf(host_bridge))
2547 /* root did that ! */
2548 if (msi_ht_cap_enabled(host_bridge))
2551 ht_enable_msi_mapping(dev);
2554 pci_dev_put(host_bridge);
2557 static void ht_disable_msi_mapping(struct pci_dev *dev)
2559 int pos, ttl = PCI_FIND_CAP_TTL;
2561 pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
2562 while (pos && ttl--) {
2565 if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
2567 pci_info(dev, "Disabling HT MSI Mapping\n");
2569 pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
2570 flags & ~HT_MSI_FLAGS_ENABLE);
2572 pos = pci_find_next_ht_capability(dev, pos,
2573 HT_CAPTYPE_MSI_MAPPING);
2577 static void __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all)
2579 struct pci_dev *host_bridge;
2583 if (!pci_msi_enabled())
2586 /* check if there is HT MSI cap or enabled on this device */
2587 found = ht_check_msi_mapping(dev);
2594 * HT MSI mapping should be disabled on devices that are below
2595 * a non-Hypertransport host bridge. Locate the host bridge...
2597 host_bridge = pci_get_domain_bus_and_slot(pci_domain_nr(dev->bus), 0,
2599 if (host_bridge == NULL) {
2600 pci_warn(dev, "nv_msi_ht_cap_quirk didn't locate host bridge\n");
2604 pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
2606 /* Host bridge is to HT */
2608 /* it is not enabled, try to enable it */
2610 ht_enable_msi_mapping(dev);
2612 nv_ht_enable_msi_mapping(dev);
2617 /* HT MSI is not enabled */
2621 /* Host bridge is not to HT, disable HT MSI mapping on this device */
2622 ht_disable_msi_mapping(dev);
2625 pci_dev_put(host_bridge);
2628 static void nv_msi_ht_cap_quirk_all(struct pci_dev *dev)
2630 return __nv_msi_ht_cap_quirk(dev, 1);
2633 static void nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev)
2635 return __nv_msi_ht_cap_quirk(dev, 0);
2638 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
2639 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf);
2641 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
2642 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all);
2644 static void quirk_msi_intx_disable_bug(struct pci_dev *dev)
2646 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2648 static void quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
2652 /* SB700 MSI issue will be fixed at HW level from revision A21,
2653 * we need check PCI REVISION ID of SMBus controller to get SB700
2656 p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
2661 if ((p->revision < 0x3B) && (p->revision >= 0x30))
2662 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2665 static void quirk_msi_intx_disable_qca_bug(struct pci_dev *dev)
2667 /* AR816X/AR817X/E210X MSI is fixed at HW level from revision 0x18 */
2668 if (dev->revision < 0x18) {
2669 pci_info(dev, "set MSI_INTX_DISABLE_BUG flag\n");
2670 dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
2673 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2674 PCI_DEVICE_ID_TIGON3_5780,
2675 quirk_msi_intx_disable_bug);
2676 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2677 PCI_DEVICE_ID_TIGON3_5780S,
2678 quirk_msi_intx_disable_bug);
2679 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2680 PCI_DEVICE_ID_TIGON3_5714,
2681 quirk_msi_intx_disable_bug);
2682 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2683 PCI_DEVICE_ID_TIGON3_5714S,
2684 quirk_msi_intx_disable_bug);
2685 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2686 PCI_DEVICE_ID_TIGON3_5715,
2687 quirk_msi_intx_disable_bug);
2688 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
2689 PCI_DEVICE_ID_TIGON3_5715S,
2690 quirk_msi_intx_disable_bug);
2692 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
2693 quirk_msi_intx_disable_ati_bug);
2694 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
2695 quirk_msi_intx_disable_ati_bug);
2696 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
2697 quirk_msi_intx_disable_ati_bug);
2698 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
2699 quirk_msi_intx_disable_ati_bug);
2700 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
2701 quirk_msi_intx_disable_ati_bug);
2703 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
2704 quirk_msi_intx_disable_bug);
2705 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
2706 quirk_msi_intx_disable_bug);
2707 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
2708 quirk_msi_intx_disable_bug);
2710 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1062,
2711 quirk_msi_intx_disable_bug);
2712 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1063,
2713 quirk_msi_intx_disable_bug);
2714 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2060,
2715 quirk_msi_intx_disable_bug);
2716 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2062,
2717 quirk_msi_intx_disable_bug);
2718 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1073,
2719 quirk_msi_intx_disable_bug);
2720 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1083,
2721 quirk_msi_intx_disable_bug);
2722 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1090,
2723 quirk_msi_intx_disable_qca_bug);
2724 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1091,
2725 quirk_msi_intx_disable_qca_bug);
2726 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a0,
2727 quirk_msi_intx_disable_qca_bug);
2728 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a1,
2729 quirk_msi_intx_disable_qca_bug);
2730 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0xe091,
2731 quirk_msi_intx_disable_qca_bug);
2732 #endif /* CONFIG_PCI_MSI */
2734 /* Allow manual resource allocation for PCI hotplug bridges
2735 * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For
2736 * some PCI-PCI hotplug bridges, like PLX 6254 (former HINT HB6),
2737 * kernel fails to allocate resources when hotplug device is
2738 * inserted and PCI bus is rescanned.
2740 static void quirk_hotplug_bridge(struct pci_dev *dev)
2742 dev->is_hotplug_bridge = 1;
2745 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0020, quirk_hotplug_bridge);
2748 * This is a quirk for the Ricoh MMC controller found as a part of
2749 * some mulifunction chips.
2751 * This is very similar and based on the ricoh_mmc driver written by
2752 * Philip Langdale. Thank you for these magic sequences.
2754 * These chips implement the four main memory card controllers (SD, MMC, MS, xD)
2755 * and one or both of cardbus or firewire.
2757 * It happens that they implement SD and MMC
2758 * support as separate controllers (and PCI functions). The linux SDHCI
2759 * driver supports MMC cards but the chip detects MMC cards in hardware
2760 * and directs them to the MMC controller - so the SDHCI driver never sees
2763 * To get around this, we must disable the useless MMC controller.
2764 * At that point, the SDHCI controller will start seeing them
2765 * It seems to be the case that the relevant PCI registers to deactivate the
2766 * MMC controller live on PCI function 0, which might be the cardbus controller
2767 * or the firewire controller, depending on the particular chip in question
2769 * This has to be done early, because as soon as we disable the MMC controller
2770 * other pci functions shift up one level, e.g. function #2 becomes function
2771 * #1, and this will confuse the pci core.
2774 #ifdef CONFIG_MMC_RICOH_MMC
2775 static void ricoh_mmc_fixup_rl5c476(struct pci_dev *dev)
2777 /* disable via cardbus interface */
2782 /* disable must be done via function #0 */
2783 if (PCI_FUNC(dev->devfn))
2786 pci_read_config_byte(dev, 0xB7, &disable);
2790 pci_read_config_byte(dev, 0x8E, &write_enable);
2791 pci_write_config_byte(dev, 0x8E, 0xAA);
2792 pci_read_config_byte(dev, 0x8D, &write_target);
2793 pci_write_config_byte(dev, 0x8D, 0xB7);
2794 pci_write_config_byte(dev, 0xB7, disable | 0x02);
2795 pci_write_config_byte(dev, 0x8E, write_enable);
2796 pci_write_config_byte(dev, 0x8D, write_target);
2798 pci_notice(dev, "proprietary Ricoh MMC controller disabled (via cardbus function)\n");
2799 pci_notice(dev, "MMC cards are now supported by standard SDHCI controller\n");
2801 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476);
2802 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476);
2804 static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev)
2806 /* disable via firewire interface */
2810 /* disable must be done via function #0 */
2811 if (PCI_FUNC(dev->devfn))
2814 * RICOH 0xe822 and 0xe823 SD/MMC card readers fail to recognize
2815 * certain types of SD/MMC cards. Lowering the SD base
2816 * clock frequency from 200Mhz to 50Mhz fixes this issue.
2818 * 0x150 - SD2.0 mode enable for changing base clock
2819 * frequency to 50Mhz
2820 * 0xe1 - Base clock frequency
2821 * 0x32 - 50Mhz new clock frequency
2822 * 0xf9 - Key register for 0x150
2823 * 0xfc - key register for 0xe1
2825 if (dev->device == PCI_DEVICE_ID_RICOH_R5CE822 ||
2826 dev->device == PCI_DEVICE_ID_RICOH_R5CE823) {
2827 pci_write_config_byte(dev, 0xf9, 0xfc);
2828 pci_write_config_byte(dev, 0x150, 0x10);
2829 pci_write_config_byte(dev, 0xf9, 0x00);
2830 pci_write_config_byte(dev, 0xfc, 0x01);
2831 pci_write_config_byte(dev, 0xe1, 0x32);
2832 pci_write_config_byte(dev, 0xfc, 0x00);
2834 pci_notice(dev, "MMC controller base frequency changed to 50Mhz.\n");
2837 pci_read_config_byte(dev, 0xCB, &disable);
2842 pci_read_config_byte(dev, 0xCA, &write_enable);
2843 pci_write_config_byte(dev, 0xCA, 0x57);
2844 pci_write_config_byte(dev, 0xCB, disable | 0x02);
2845 pci_write_config_byte(dev, 0xCA, write_enable);
2847 pci_notice(dev, "proprietary Ricoh MMC controller disabled (via firewire function)\n");
2848 pci_notice(dev, "MMC cards are now supported by standard SDHCI controller\n");
2851 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
2852 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832);
2853 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
2854 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832);
2855 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
2856 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832);
2857 #endif /*CONFIG_MMC_RICOH_MMC*/
2859 #ifdef CONFIG_DMAR_TABLE
2860 #define VTUNCERRMSK_REG 0x1ac
2861 #define VTD_MSK_SPEC_ERRORS (1 << 31)
2863 * This is a quirk for masking vt-d spec defined errors to platform error
2864 * handling logic. With out this, platforms using Intel 7500, 5500 chipsets
2865 * (and the derivative chipsets like X58 etc) seem to generate NMI/SMI (based
2866 * on the RAS config settings of the platform) when a vt-d fault happens.
2867 * The resulting SMI caused the system to hang.
2869 * VT-d spec related errors are already handled by the VT-d OS code, so no
2870 * need to report the same error through other channels.
2872 static void vtd_mask_spec_errors(struct pci_dev *dev)
2876 pci_read_config_dword(dev, VTUNCERRMSK_REG, &word);
2877 pci_write_config_dword(dev, VTUNCERRMSK_REG, word | VTD_MSK_SPEC_ERRORS);
2879 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors);
2880 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors);
2883 static void fixup_ti816x_class(struct pci_dev *dev)
2885 u32 class = dev->class;
2887 /* TI 816x devices do not have class code set when in PCIe boot mode */
2888 dev->class = PCI_CLASS_MULTIMEDIA_VIDEO << 8;
2889 pci_info(dev, "PCI class overridden (%#08x -> %#08x)\n",
2892 DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_TI, 0xb800,
2893 PCI_CLASS_NOT_DEFINED, 8, fixup_ti816x_class);
2895 /* Some PCIe devices do not work reliably with the claimed maximum
2896 * payload size supported.
2898 static void fixup_mpss_256(struct pci_dev *dev)
2900 dev->pcie_mpss = 1; /* 256 bytes */
2902 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
2903 PCI_DEVICE_ID_SOLARFLARE_SFC4000A_0, fixup_mpss_256);
2904 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
2905 PCI_DEVICE_ID_SOLARFLARE_SFC4000A_1, fixup_mpss_256);
2906 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE,
2907 PCI_DEVICE_ID_SOLARFLARE_SFC4000B, fixup_mpss_256);
2909 /* Intel 5000 and 5100 Memory controllers have an errata with read completion
2910 * coalescing (which is enabled by default on some BIOSes) and MPS of 256B.
2911 * Since there is no way of knowing what the PCIE MPS on each fabric will be
2912 * until all of the devices are discovered and buses walked, read completion
2913 * coalescing must be disabled. Unfortunately, it cannot be re-enabled because
2914 * it is possible to hotplug a device with MPS of 256B.
2916 static void quirk_intel_mc_errata(struct pci_dev *dev)
2921 if (pcie_bus_config == PCIE_BUS_TUNE_OFF ||
2922 pcie_bus_config == PCIE_BUS_DEFAULT)
2925 /* Intel errata specifies bits to change but does not say what they are.
2926 * Keeping them magical until such time as the registers and values can
2929 err = pci_read_config_word(dev, 0x48, &rcc);
2931 pci_err(dev, "Error attempting to read the read completion coalescing register\n");
2935 if (!(rcc & (1 << 10)))
2940 err = pci_write_config_word(dev, 0x48, rcc);
2942 pci_err(dev, "Error attempting to write the read completion coalescing register\n");
2946 pr_info_once("Read completion coalescing disabled due to hardware errata relating to 256B MPS\n");
2948 /* Intel 5000 series memory controllers and ports 2-7 */
2949 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25c0, quirk_intel_mc_errata);
2950 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d0, quirk_intel_mc_errata);
2951 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d4, quirk_intel_mc_errata);
2952 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d8, quirk_intel_mc_errata);
2953 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_mc_errata);
2954 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_mc_errata);
2955 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_mc_errata);
2956 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_mc_errata);
2957 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_mc_errata);
2958 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_mc_errata);
2959 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_mc_errata);
2960 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_mc_errata);
2961 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_mc_errata);
2962 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_mc_errata);
2963 /* Intel 5100 series memory controllers and ports 2-7 */
2964 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65c0, quirk_intel_mc_errata);
2965 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e2, quirk_intel_mc_errata);
2966 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e3, quirk_intel_mc_errata);
2967 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e4, quirk_intel_mc_errata);
2968 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e5, quirk_intel_mc_errata);
2969 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e6, quirk_intel_mc_errata);
2970 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e7, quirk_intel_mc_errata);
2971 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f7, quirk_intel_mc_errata);
2972 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f8, quirk_intel_mc_errata);
2973 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata);
2974 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata);
2978 * Ivytown NTB BAR sizes are misreported by the hardware due to an erratum. To
2979 * work around this, query the size it should be configured to by the device and
2980 * modify the resource end to correspond to this new size.
2982 static void quirk_intel_ntb(struct pci_dev *dev)
2987 rc = pci_read_config_byte(dev, 0x00D0, &val);
2991 dev->resource[2].end = dev->resource[2].start + ((u64) 1 << val) - 1;
2993 rc = pci_read_config_byte(dev, 0x00D1, &val);
2997 dev->resource[4].end = dev->resource[4].start + ((u64) 1 << val) - 1;
2999 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e08, quirk_intel_ntb);
3000 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e0d, quirk_intel_ntb);
3002 static ktime_t fixup_debug_start(struct pci_dev *dev,
3003 void (*fn)(struct pci_dev *dev))
3006 pci_info(dev, "calling %pF @ %i\n", fn, task_pid_nr(current));
3011 static void fixup_debug_report(struct pci_dev *dev, ktime_t calltime,
3012 void (*fn)(struct pci_dev *dev))
3014 ktime_t delta, rettime;
3015 unsigned long long duration;
3017 rettime = ktime_get();
3018 delta = ktime_sub(rettime, calltime);
3019 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
3020 if (initcall_debug || duration > 10000)
3021 pci_info(dev, "%pF took %lld usecs\n", fn, duration);
3025 * Some BIOS implementations leave the Intel GPU interrupts enabled,
3026 * even though no one is handling them (f.e. i915 driver is never loaded).
3027 * Additionally the interrupt destination is not set up properly
3028 * and the interrupt ends up -somewhere-.
3030 * These spurious interrupts are "sticky" and the kernel disables
3031 * the (shared) interrupt line after 100.000+ generated interrupts.
3033 * Fix it by disabling the still enabled interrupts.
3034 * This resolves crashes often seen on monitor unplug.
3036 #define I915_DEIER_REG 0x4400c
3037 static void disable_igfx_irq(struct pci_dev *dev)
3039 void __iomem *regs = pci_iomap(dev, 0, 0);
3041 pci_warn(dev, "igfx quirk: Can't iomap PCI device\n");
3045 /* Check if any interrupt line is still enabled */
3046 if (readl(regs + I915_DEIER_REG) != 0) {
3047 pci_warn(dev, "BIOS left Intel GPU interrupts enabled; disabling\n");
3049 writel(0, regs + I915_DEIER_REG);
3052 pci_iounmap(dev, regs);
3054 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
3055 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
3056 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0152, disable_igfx_irq);
3059 * PCI devices which are on Intel chips can skip the 10ms delay
3060 * before entering D3 mode.
3062 static void quirk_remove_d3_delay(struct pci_dev *dev)
3066 /* C600 Series devices do not need 10ms d3_delay */
3067 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0412, quirk_remove_d3_delay);
3068 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay);
3069 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c0c, quirk_remove_d3_delay);
3070 /* Lynxpoint-H PCH devices do not need 10ms d3_delay */
3071 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay);
3072 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c18, quirk_remove_d3_delay);
3073 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c1c, quirk_remove_d3_delay);
3074 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay);
3075 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay);
3076 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3_delay);
3077 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay);
3078 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay);
3079 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay);
3080 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay);
3081 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3_delay);
3082 /* Intel Cherrytrail devices do not need 10ms d3_delay */
3083 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2280, quirk_remove_d3_delay);
3084 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2298, quirk_remove_d3_delay);
3085 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x229c, quirk_remove_d3_delay);
3086 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b0, quirk_remove_d3_delay);
3087 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b5, quirk_remove_d3_delay);
3088 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b7, quirk_remove_d3_delay);
3089 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b8, quirk_remove_d3_delay);
3090 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22d8, quirk_remove_d3_delay);
3091 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22dc, quirk_remove_d3_delay);
3094 * Some devices may pass our check in pci_intx_mask_supported() if
3095 * PCI_COMMAND_INTX_DISABLE works though they actually do not properly
3096 * support this feature.
3098 static void quirk_broken_intx_masking(struct pci_dev *dev)
3100 dev->broken_intx_masking = 1;
3102 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x0030,
3103 quirk_broken_intx_masking);
3104 DECLARE_PCI_FIXUP_FINAL(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */
3105 quirk_broken_intx_masking);
3106 DECLARE_PCI_FIXUP_FINAL(0x1b7c, 0x0004, /* Ceton InfiniTV4 */
3107 quirk_broken_intx_masking);
3110 * Realtek RTL8169 PCI Gigabit Ethernet Controller (rev 10)
3111 * Subsystem: Realtek RTL8169/8110 Family PCI Gigabit Ethernet NIC
3113 * RTL8110SC - Fails under PCI device assignment using DisINTx masking.
3115 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_REALTEK, 0x8169,
3116 quirk_broken_intx_masking);
3119 * Intel i40e (XL710/X710) 10/20/40GbE NICs all have broken INTx masking,
3120 * DisINTx can be set but the interrupt status bit is non-functional.
3122 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1572,
3123 quirk_broken_intx_masking);
3124 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1574,
3125 quirk_broken_intx_masking);
3126 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1580,
3127 quirk_broken_intx_masking);
3128 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1581,
3129 quirk_broken_intx_masking);
3130 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1583,
3131 quirk_broken_intx_masking);
3132 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1584,
3133 quirk_broken_intx_masking);
3134 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1585,
3135 quirk_broken_intx_masking);
3136 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1586,
3137 quirk_broken_intx_masking);
3138 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1587,
3139 quirk_broken_intx_masking);
3140 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1588,
3141 quirk_broken_intx_masking);
3142 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1589,
3143 quirk_broken_intx_masking);
3144 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x158a,
3145 quirk_broken_intx_masking);
3146 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x158b,
3147 quirk_broken_intx_masking);
3148 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x37d0,
3149 quirk_broken_intx_masking);
3150 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x37d1,
3151 quirk_broken_intx_masking);
3152 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x37d2,
3153 quirk_broken_intx_masking);
3155 static u16 mellanox_broken_intx_devs[] = {
3156 PCI_DEVICE_ID_MELLANOX_HERMON_SDR,
3157 PCI_DEVICE_ID_MELLANOX_HERMON_DDR,
3158 PCI_DEVICE_ID_MELLANOX_HERMON_QDR,
3159 PCI_DEVICE_ID_MELLANOX_HERMON_DDR_GEN2,
3160 PCI_DEVICE_ID_MELLANOX_HERMON_QDR_GEN2,
3161 PCI_DEVICE_ID_MELLANOX_HERMON_EN,
3162 PCI_DEVICE_ID_MELLANOX_HERMON_EN_GEN2,
3163 PCI_DEVICE_ID_MELLANOX_CONNECTX_EN,
3164 PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_T_GEN2,
3165 PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_GEN2,
3166 PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_5_GEN2,
3167 PCI_DEVICE_ID_MELLANOX_CONNECTX2,
3168 PCI_DEVICE_ID_MELLANOX_CONNECTX3,
3169 PCI_DEVICE_ID_MELLANOX_CONNECTX3_PRO,
3172 #define CONNECTX_4_CURR_MAX_MINOR 99
3173 #define CONNECTX_4_INTX_SUPPORT_MINOR 14
3176 * Check ConnectX-4/LX FW version to see if it supports legacy interrupts.
3177 * If so, don't mark it as broken.
3178 * FW minor > 99 means older FW version format and no INTx masking support.
3179 * FW minor < 14 means new FW version format and no INTx masking support.
3181 static void mellanox_check_broken_intx_masking(struct pci_dev *pdev)
3183 __be32 __iomem *fw_ver;
3191 for (i = 0; i < ARRAY_SIZE(mellanox_broken_intx_devs); i++) {
3192 if (pdev->device == mellanox_broken_intx_devs[i]) {
3193 pdev->broken_intx_masking = 1;
3198 /* Getting here means Connect-IB cards and up. Connect-IB has no INTx
3199 * support so shouldn't be checked further
3201 if (pdev->device == PCI_DEVICE_ID_MELLANOX_CONNECTIB)
3204 if (pdev->device != PCI_DEVICE_ID_MELLANOX_CONNECTX4 &&
3205 pdev->device != PCI_DEVICE_ID_MELLANOX_CONNECTX4_LX)
3208 /* For ConnectX-4 and ConnectX-4LX, need to check FW support */
3209 if (pci_enable_device_mem(pdev)) {
3210 pci_warn(pdev, "Can't enable device memory\n");
3214 fw_ver = ioremap(pci_resource_start(pdev, 0), 4);
3216 pci_warn(pdev, "Can't map ConnectX-4 initialization segment\n");
3220 /* Reading from resource space should be 32b aligned */
3221 fw_maj_min = ioread32be(fw_ver);
3222 fw_sub_min = ioread32be(fw_ver + 1);
3223 fw_major = fw_maj_min & 0xffff;
3224 fw_minor = fw_maj_min >> 16;
3225 fw_subminor = fw_sub_min & 0xffff;
3226 if (fw_minor > CONNECTX_4_CURR_MAX_MINOR ||
3227 fw_minor < CONNECTX_4_INTX_SUPPORT_MINOR) {
3228 pci_warn(pdev, "ConnectX-4: FW %u.%u.%u doesn't support INTx masking, disabling. Please upgrade FW to %d.14.1100 and up for INTx support\n",
3229 fw_major, fw_minor, fw_subminor, pdev->device ==
3230 PCI_DEVICE_ID_MELLANOX_CONNECTX4 ? 12 : 14);
3231 pdev->broken_intx_masking = 1;
3237 pci_disable_device(pdev);
3239 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX, PCI_ANY_ID,
3240 mellanox_check_broken_intx_masking);
3242 static void quirk_no_bus_reset(struct pci_dev *dev)
3244 dev->dev_flags |= PCI_DEV_FLAGS_NO_BUS_RESET;
3248 * Some Atheros AR9xxx and QCA988x chips do not behave after a bus reset.
3249 * The device will throw a Link Down error on AER-capable systems and
3250 * regardless of AER, config space of the device is never accessible again
3251 * and typically causes the system to hang or reset when access is attempted.
3252 * http://www.spinics.net/lists/linux-pci/msg34797.html
3254 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
3255 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);
3256 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
3257 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset);
3260 * Root port on some Cavium CN8xxx chips do not successfully complete a bus
3261 * reset when used with certain child devices. After the reset, config
3262 * accesses to the child may fail.
3264 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CAVIUM, 0xa100, quirk_no_bus_reset);
3266 static void quirk_no_pm_reset(struct pci_dev *dev)
3269 * We can't do a bus reset on root bus devices, but an ineffective
3270 * PM reset may be better than nothing.
3272 if (!pci_is_root_bus(dev->bus))
3273 dev->dev_flags |= PCI_DEV_FLAGS_NO_PM_RESET;
3277 * Some AMD/ATI GPUS (HD8570 - Oland) report that a D3hot->D0 transition
3278 * causes a reset (i.e., they advertise NoSoftRst-). This transition seems
3279 * to have no effect on the device: it retains the framebuffer contents and
3280 * monitor sync. Advertising this support makes other layers, like VFIO,
3281 * assume pci_reset_function() is viable for this device. Mark it as
3282 * unavailable to skip it when testing reset methods.
3284 DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
3285 PCI_CLASS_DISPLAY_VGA, 8, quirk_no_pm_reset);
3288 * Thunderbolt controllers with broken MSI hotplug signaling:
3289 * Entire 1st generation (Light Ridge, Eagle Ridge, Light Peak) and part
3290 * of the 2nd generation (Cactus Ridge 4C up to revision 1, Port Ridge).
3292 static void quirk_thunderbolt_hotplug_msi(struct pci_dev *pdev)
3294 if (pdev->is_hotplug_bridge &&
3295 (pdev->device != PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C ||
3296 pdev->revision <= 1))
3299 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LIGHT_RIDGE,
3300 quirk_thunderbolt_hotplug_msi);
3301 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EAGLE_RIDGE,
3302 quirk_thunderbolt_hotplug_msi);
3303 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LIGHT_PEAK,
3304 quirk_thunderbolt_hotplug_msi);
3305 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C,
3306 quirk_thunderbolt_hotplug_msi);
3307 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PORT_RIDGE,
3308 quirk_thunderbolt_hotplug_msi);
3312 * Apple: Shutdown Cactus Ridge Thunderbolt controller.
3314 * On Apple hardware the Cactus Ridge Thunderbolt controller needs to be
3315 * shutdown before suspend. Otherwise the native host interface (NHI) will not
3316 * be present after resume if a device was plugged in before suspend.
3318 * The thunderbolt controller consists of a pcie switch with downstream
3319 * bridges leading to the NHI and to the tunnel pci bridges.
3321 * This quirk cuts power to the whole chip. Therefore we have to apply it
3322 * during suspend_noirq of the upstream bridge.
3324 * Power is automagically restored before resume. No action is needed.
3326 static void quirk_apple_poweroff_thunderbolt(struct pci_dev *dev)
3328 acpi_handle bridge, SXIO, SXFP, SXLV;
3330 if (!x86_apple_machine)
3332 if (pci_pcie_type(dev) != PCI_EXP_TYPE_UPSTREAM)
3334 bridge = ACPI_HANDLE(&dev->dev);
3338 * SXIO and SXLV are present only on machines requiring this quirk.
3339 * TB bridges in external devices might have the same device id as those
3340 * on the host, but they will not have the associated ACPI methods. This
3341 * implicitly checks that we are at the right bridge.
3343 if (ACPI_FAILURE(acpi_get_handle(bridge, "DSB0.NHI0.SXIO", &SXIO))
3344 || ACPI_FAILURE(acpi_get_handle(bridge, "DSB0.NHI0.SXFP", &SXFP))
3345 || ACPI_FAILURE(acpi_get_handle(bridge, "DSB0.NHI0.SXLV", &SXLV)))
3347 pci_info(dev, "quirk: cutting power to thunderbolt controller...\n");
3349 /* magic sequence */
3350 acpi_execute_simple_method(SXIO, NULL, 1);
3351 acpi_execute_simple_method(SXFP, NULL, 0);
3353 acpi_execute_simple_method(SXLV, NULL, 0);
3354 acpi_execute_simple_method(SXIO, NULL, 0);
3355 acpi_execute_simple_method(SXLV, NULL, 0);
3357 DECLARE_PCI_FIXUP_SUSPEND_LATE(PCI_VENDOR_ID_INTEL,
3358 PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C,
3359 quirk_apple_poweroff_thunderbolt);
3362 * Apple: Wait for the thunderbolt controller to reestablish pci tunnels.
3364 * During suspend the thunderbolt controller is reset and all pci
3365 * tunnels are lost. The NHI driver will try to reestablish all tunnels
3366 * during resume. We have to manually wait for the NHI since there is
3367 * no parent child relationship between the NHI and the tunneled
3370 static void quirk_apple_wait_for_thunderbolt(struct pci_dev *dev)
3372 struct pci_dev *sibling = NULL;
3373 struct pci_dev *nhi = NULL;
3375 if (!x86_apple_machine)
3377 if (pci_pcie_type(dev) != PCI_EXP_TYPE_DOWNSTREAM)
3380 * Find the NHI and confirm that we are a bridge on the tb host
3381 * controller and not on a tb endpoint.
3383 sibling = pci_get_slot(dev->bus, 0x0);
3385 goto out; /* we are the downstream bridge to the NHI */
3386 if (!sibling || !sibling->subordinate)
3388 nhi = pci_get_slot(sibling->subordinate, 0x0);
3391 if (nhi->vendor != PCI_VENDOR_ID_INTEL
3392 || (nhi->device != PCI_DEVICE_ID_INTEL_LIGHT_RIDGE &&
3393 nhi->device != PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C &&
3394 nhi->device != PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_NHI &&
3395 nhi->device != PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_NHI)
3396 || nhi->class != PCI_CLASS_SYSTEM_OTHER << 8)
3398 pci_info(dev, "quirk: waiting for thunderbolt to reestablish PCI tunnels...\n");
3399 device_pm_wait_for_dev(&dev->dev, &nhi->dev);
3402 pci_dev_put(sibling);
3404 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL,
3405 PCI_DEVICE_ID_INTEL_LIGHT_RIDGE,
3406 quirk_apple_wait_for_thunderbolt);
3407 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL,
3408 PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C,
3409 quirk_apple_wait_for_thunderbolt);
3410 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL,
3411 PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_BRIDGE,
3412 quirk_apple_wait_for_thunderbolt);
3413 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL,
3414 PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_BRIDGE,
3415 quirk_apple_wait_for_thunderbolt);
3418 static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
3419 struct pci_fixup *end)
3423 for (; f < end; f++)
3424 if ((f->class == (u32) (dev->class >> f->class_shift) ||
3425 f->class == (u32) PCI_ANY_ID) &&
3426 (f->vendor == dev->vendor ||
3427 f->vendor == (u16) PCI_ANY_ID) &&
3428 (f->device == dev->device ||
3429 f->device == (u16) PCI_ANY_ID)) {
3430 calltime = fixup_debug_start(dev, f->hook);
3432 fixup_debug_report(dev, calltime, f->hook);
3436 extern struct pci_fixup __start_pci_fixups_early[];
3437 extern struct pci_fixup __end_pci_fixups_early[];
3438 extern struct pci_fixup __start_pci_fixups_header[];
3439 extern struct pci_fixup __end_pci_fixups_header[];
3440 extern struct pci_fixup __start_pci_fixups_final[];
3441 extern struct pci_fixup __end_pci_fixups_final[];
3442 extern struct pci_fixup __start_pci_fixups_enable[];
3443 extern struct pci_fixup __end_pci_fixups_enable[];
3444 extern struct pci_fixup __start_pci_fixups_resume[];
3445 extern struct pci_fixup __end_pci_fixups_resume[];
3446 extern struct pci_fixup __start_pci_fixups_resume_early[];
3447 extern struct pci_fixup __end_pci_fixups_resume_early[];
3448 extern struct pci_fixup __start_pci_fixups_suspend[];
3449 extern struct pci_fixup __end_pci_fixups_suspend[];
3450 extern struct pci_fixup __start_pci_fixups_suspend_late[];
3451 extern struct pci_fixup __end_pci_fixups_suspend_late[];
3453 static bool pci_apply_fixup_final_quirks;
3455 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
3457 struct pci_fixup *start, *end;