quirks.c 82 KB

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  1. /*
  2. * This file contains work-arounds for many known PCI hardware
  3. * bugs. Devices present only on certain architectures (host
  4. * bridges et cetera) should be handled in arch-specific code.
  5. *
  6. * Note: any quirks for hotpluggable devices must _NOT_ be declared __init.
  7. *
  8. * Copyright (c) 1999 Martin Mares <mj@ucw.cz>
  9. *
  10. * Init/reset quirks for USB host controllers should be in the
  11. * USB quirks file, where their drivers can access reuse it.
  12. *
  13. * The bridge optimization stuff has been removed. If you really
  14. * have a silly BIOS which is unable to set your host bridge right,
  15. * use the PowerTweak utility (see http://powertweak.sourceforge.net).
  16. */
  17. #include <linux/types.h>
  18. #include <linux/kernel.h>
  19. #include <linux/pci.h>
  20. #include <linux/init.h>
  21. #include <linux/delay.h>
  22. #include <linux/acpi.h>
  23. #include <linux/kallsyms.h>
  24. #include <linux/dmi.h>
  25. #include <linux/pci-aspm.h>
  26. #include "pci.h"
  27. int isa_dma_bridge_buggy;
  28. EXPORT_SYMBOL(isa_dma_bridge_buggy);
  29. int pci_pci_problems;
  30. EXPORT_SYMBOL(pci_pci_problems);
  31. int pcie_mch_quirk;
  32. EXPORT_SYMBOL(pcie_mch_quirk);
  33. #ifdef CONFIG_PCI_QUIRKS
  34. /* The Mellanox Tavor device gives false positive parity errors
  35. * Mark this device with a broken_parity_status, to allow
  36. * PCI scanning code to "skip" this now blacklisted device.
  37. */
  38. static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
  39. {
  40. dev->broken_parity_status = 1; /* This device gives false positives */
  41. }
  42. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
  43. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
  44. /* Deal with broken BIOS'es that neglect to enable passive release,
  45. which can cause problems in combination with the 82441FX/PPro MTRRs */
  46. static void quirk_passive_release(struct pci_dev *dev)
  47. {
  48. struct pci_dev *d = NULL;
  49. unsigned char dlc;
  50. /* We have to make sure a particular bit is set in the PIIX3
  51. ISA bridge, so we have to go out and find it. */
  52. while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
  53. pci_read_config_byte(d, 0x82, &dlc);
  54. if (!(dlc & 1<<1)) {
  55. dev_info(&d->dev, "PIIX3: Enabling Passive Release\n");
  56. dlc |= 1<<1;
  57. pci_write_config_byte(d, 0x82, dlc);
  58. }
  59. }
  60. }
  61. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
  62. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
  63. /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
  64. but VIA don't answer queries. If you happen to have good contacts at VIA
  65. ask them for me please -- Alan
  66. This appears to be BIOS not version dependent. So presumably there is a
  67. chipset level fix */
  68. static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
  69. {
  70. if (!isa_dma_bridge_buggy) {
  71. isa_dma_bridge_buggy=1;
  72. dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n");
  73. }
  74. }
  75. /*
  76. * Its not totally clear which chipsets are the problematic ones
  77. * We know 82C586 and 82C596 variants are affected.
  78. */
  79. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs);
  80. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs);
  81. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs);
  82. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs);
  83. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs);
  84. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs);
  85. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs);
  86. /*
  87. * Chipsets where PCI->PCI transfers vanish or hang
  88. */
  89. static void __devinit quirk_nopcipci(struct pci_dev *dev)
  90. {
  91. if ((pci_pci_problems & PCIPCI_FAIL)==0) {
  92. dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n");
  93. pci_pci_problems |= PCIPCI_FAIL;
  94. }
  95. }
  96. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci);
  97. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci);
  98. static void __devinit quirk_nopciamd(struct pci_dev *dev)
  99. {
  100. u8 rev;
  101. pci_read_config_byte(dev, 0x08, &rev);
  102. if (rev == 0x13) {
  103. /* Erratum 24 */
  104. dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n");
  105. pci_pci_problems |= PCIAGP_FAIL;
  106. }
  107. }
  108. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
  109. /*
  110. * Triton requires workarounds to be used by the drivers
  111. */
  112. static void __devinit quirk_triton(struct pci_dev *dev)
  113. {
  114. if ((pci_pci_problems&PCIPCI_TRITON)==0) {
  115. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  116. pci_pci_problems |= PCIPCI_TRITON;
  117. }
  118. }
  119. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton);
  120. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton);
  121. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton);
  122. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton);
  123. /*
  124. * VIA Apollo KT133 needs PCI latency patch
  125. * Made according to a windows driver based patch by George E. Breese
  126. * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
  127. * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
  128. * the info on which Mr Breese based his work.
  129. *
  130. * Updated based on further information from the site and also on
  131. * information provided by VIA
  132. */
  133. static void quirk_vialatency(struct pci_dev *dev)
  134. {
  135. struct pci_dev *p;
  136. u8 busarb;
  137. /* Ok we have a potential problem chipset here. Now see if we have
  138. a buggy southbridge */
  139. p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
  140. if (p!=NULL) {
  141. /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
  142. /* Check for buggy part revisions */
  143. if (p->revision < 0x40 || p->revision > 0x42)
  144. goto exit;
  145. } else {
  146. p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
  147. if (p==NULL) /* No problem parts */
  148. goto exit;
  149. /* Check for buggy part revisions */
  150. if (p->revision < 0x10 || p->revision > 0x12)
  151. goto exit;
  152. }
  153. /*
  154. * Ok we have the problem. Now set the PCI master grant to
  155. * occur every master grant. The apparent bug is that under high
  156. * PCI load (quite common in Linux of course) you can get data
  157. * loss when the CPU is held off the bus for 3 bus master requests
  158. * This happens to include the IDE controllers....
  159. *
  160. * VIA only apply this fix when an SB Live! is present but under
  161. * both Linux and Windows this isnt enough, and we have seen
  162. * corruption without SB Live! but with things like 3 UDMA IDE
  163. * controllers. So we ignore that bit of the VIA recommendation..
  164. */
  165. pci_read_config_byte(dev, 0x76, &busarb);
  166. /* Set bit 4 and bi 5 of byte 76 to 0x01
  167. "Master priority rotation on every PCI master grant */
  168. busarb &= ~(1<<5);
  169. busarb |= (1<<4);
  170. pci_write_config_byte(dev, 0x76, busarb);
  171. dev_info(&dev->dev, "Applying VIA southbridge workaround\n");
  172. exit:
  173. pci_dev_put(p);
  174. }
  175. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
  176. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
  177. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
  178. /* Must restore this on a resume from RAM */
  179. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
  180. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
  181. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
  182. /*
  183. * VIA Apollo VP3 needs ETBF on BT848/878
  184. */
  185. static void __devinit quirk_viaetbf(struct pci_dev *dev)
  186. {
  187. if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
  188. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  189. pci_pci_problems |= PCIPCI_VIAETBF;
  190. }
  191. }
  192. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf);
  193. static void __devinit quirk_vsfx(struct pci_dev *dev)
  194. {
  195. if ((pci_pci_problems&PCIPCI_VSFX)==0) {
  196. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  197. pci_pci_problems |= PCIPCI_VSFX;
  198. }
  199. }
  200. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx);
  201. /*
  202. * Ali Magik requires workarounds to be used by the drivers
  203. * that DMA to AGP space. Latency must be set to 0xA and triton
  204. * workaround applied too
  205. * [Info kindly provided by ALi]
  206. */
  207. static void __init quirk_alimagik(struct pci_dev *dev)
  208. {
  209. if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
  210. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  211. pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
  212. }
  213. }
  214. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik);
  215. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik);
  216. /*
  217. * Natoma has some interesting boundary conditions with Zoran stuff
  218. * at least
  219. */
  220. static void __devinit quirk_natoma(struct pci_dev *dev)
  221. {
  222. if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
  223. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  224. pci_pci_problems |= PCIPCI_NATOMA;
  225. }
  226. }
  227. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma);
  228. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma);
  229. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma);
  230. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma);
  231. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma);
  232. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma);
  233. /*
  234. * This chip can cause PCI parity errors if config register 0xA0 is read
  235. * while DMAs are occurring.
  236. */
  237. static void __devinit quirk_citrine(struct pci_dev *dev)
  238. {
  239. dev->cfg_size = 0xA0;
  240. }
  241. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine);
  242. /*
  243. * S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
  244. * If it's needed, re-allocate the region.
  245. */
  246. static void __devinit quirk_s3_64M(struct pci_dev *dev)
  247. {
  248. struct resource *r = &dev->resource[0];
  249. if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
  250. r->start = 0;
  251. r->end = 0x3ffffff;
  252. }
  253. }
  254. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M);
  255. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M);
  256. static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
  257. unsigned size, int nr, const char *name)
  258. {
  259. region &= ~(size-1);
  260. if (region) {
  261. struct pci_bus_region bus_region;
  262. struct resource *res = dev->resource + nr;
  263. res->name = pci_name(dev);
  264. res->start = region;
  265. res->end = region + size - 1;
  266. res->flags = IORESOURCE_IO;
  267. /* Convert from PCI bus to resource space. */
  268. bus_region.start = res->start;
  269. bus_region.end = res->end;
  270. pcibios_bus_to_resource(dev, res, &bus_region);
  271. pci_claim_resource(dev, nr);
  272. dev_info(&dev->dev, "quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
  273. }
  274. }
  275. /*
  276. * ATI Northbridge setups MCE the processor if you even
  277. * read somewhere between 0x3b0->0x3bb or read 0x3d3
  278. */
  279. static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
  280. {
  281. dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
  282. /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
  283. request_region(0x3b0, 0x0C, "RadeonIGP");
  284. request_region(0x3d3, 0x01, "RadeonIGP");
  285. }
  286. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce);
  287. /*
  288. * Let's make the southbridge information explicit instead
  289. * of having to worry about people probing the ACPI areas,
  290. * for example.. (Yes, it happens, and if you read the wrong
  291. * ACPI register it will put the machine to sleep with no
  292. * way of waking it up again. Bummer).
  293. *
  294. * ALI M7101: Two IO regions pointed to by words at
  295. * 0xE0 (64 bytes of ACPI registers)
  296. * 0xE2 (32 bytes of SMB registers)
  297. */
  298. static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
  299. {
  300. u16 region;
  301. pci_read_config_word(dev, 0xE0, &region);
  302. quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
  303. pci_read_config_word(dev, 0xE2, &region);
  304. quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
  305. }
  306. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi);
  307. static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
  308. {
  309. u32 devres;
  310. u32 mask, size, base;
  311. pci_read_config_dword(dev, port, &devres);
  312. if ((devres & enable) != enable)
  313. return;
  314. mask = (devres >> 16) & 15;
  315. base = devres & 0xffff;
  316. size = 16;
  317. for (;;) {
  318. unsigned bit = size >> 1;
  319. if ((bit & mask) == bit)
  320. break;
  321. size = bit;
  322. }
  323. /*
  324. * For now we only print it out. Eventually we'll want to
  325. * reserve it (at least if it's in the 0x1000+ range), but
  326. * let's get enough confirmation reports first.
  327. */
  328. base &= -size;
  329. dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
  330. }
  331. static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
  332. {
  333. u32 devres;
  334. u32 mask, size, base;
  335. pci_read_config_dword(dev, port, &devres);
  336. if ((devres & enable) != enable)
  337. return;
  338. base = devres & 0xffff0000;
  339. mask = (devres & 0x3f) << 16;
  340. size = 128 << 16;
  341. for (;;) {
  342. unsigned bit = size >> 1;
  343. if ((bit & mask) == bit)
  344. break;
  345. size = bit;
  346. }
  347. /*
  348. * For now we only print it out. Eventually we'll want to
  349. * reserve it, but let's get enough confirmation reports first.
  350. */
  351. base &= -size;
  352. dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
  353. }
  354. /*
  355. * PIIX4 ACPI: Two IO regions pointed to by longwords at
  356. * 0x40 (64 bytes of ACPI registers)
  357. * 0x90 (16 bytes of SMB registers)
  358. * and a few strange programmable PIIX4 device resources.
  359. */
  360. static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
  361. {
  362. u32 region, res_a;
  363. pci_read_config_dword(dev, 0x40, &region);
  364. quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
  365. pci_read_config_dword(dev, 0x90, &region);
  366. quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
  367. /* Device resource A has enables for some of the other ones */
  368. pci_read_config_dword(dev, 0x5c, &res_a);
  369. piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
  370. piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
  371. /* Device resource D is just bitfields for static resources */
  372. /* Device 12 enabled? */
  373. if (res_a & (1 << 29)) {
  374. piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
  375. piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
  376. }
  377. /* Device 13 enabled? */
  378. if (res_a & (1 << 30)) {
  379. piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
  380. piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
  381. }
  382. piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
  383. piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
  384. }
  385. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi);
  386. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi);
  387. /*
  388. * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
  389. * 0x40 (128 bytes of ACPI, GPIO & TCO registers)
  390. * 0x58 (64 bytes of GPIO I/O space)
  391. */
  392. static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
  393. {
  394. u32 region;
  395. pci_read_config_dword(dev, 0x40, &region);
  396. quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO");
  397. pci_read_config_dword(dev, 0x58, &region);
  398. quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO");
  399. }
  400. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi);
  401. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi);
  402. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi);
  403. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi);
  404. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi);
  405. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi);
  406. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi);
  407. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi);
  408. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
  409. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
  410. static void __devinit ich6_lpc_acpi_gpio(struct pci_dev *dev)
  411. {
  412. u32 region;
  413. pci_read_config_dword(dev, 0x40, &region);
  414. quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH6 ACPI/GPIO/TCO");
  415. pci_read_config_dword(dev, 0x48, &region);
  416. quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO");
  417. }
  418. static void __devinit ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize)
  419. {
  420. u32 val;
  421. u32 size, base;
  422. pci_read_config_dword(dev, reg, &val);
  423. /* Enabled? */
  424. if (!(val & 1))
  425. return;
  426. base = val & 0xfffc;
  427. if (dynsize) {
  428. /*
  429. * This is not correct. It is 16, 32 or 64 bytes depending on
  430. * register D31:F0:ADh bits 5:4.
  431. *
  432. * But this gets us at least _part_ of it.
  433. */
  434. size = 16;
  435. } else {
  436. size = 128;
  437. }
  438. base &= ~(size-1);
  439. /* Just print it out for now. We should reserve it after more debugging */
  440. dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base+size-1);
  441. }
  442. static void __devinit quirk_ich6_lpc(struct pci_dev *dev)
  443. {
  444. /* Shared ACPI/GPIO decode with all ICH6+ */
  445. ich6_lpc_acpi_gpio(dev);
  446. /* ICH6-specific generic IO decode */
  447. ich6_lpc_generic_decode(dev, 0x84, "LPC Generic IO decode 1", 0);
  448. ich6_lpc_generic_decode(dev, 0x88, "LPC Generic IO decode 2", 1);
  449. }
  450. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc);
  451. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc);
  452. static void __devinit ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name)
  453. {
  454. u32 val;
  455. u32 mask, base;
  456. pci_read_config_dword(dev, reg, &val);
  457. /* Enabled? */
  458. if (!(val & 1))
  459. return;
  460. /*
  461. * IO base in bits 15:2, mask in bits 23:18, both
  462. * are dword-based
  463. */
  464. base = val & 0xfffc;
  465. mask = (val >> 16) & 0xfc;
  466. mask |= 3;
  467. /* Just print it out for now. We should reserve it after more debugging */
  468. dev_info(&dev->dev, "%s PIO at %04x (mask %04x)\n", name, base, mask);
  469. }
  470. /* ICH7-10 has the same common LPC generic IO decode registers */
  471. static void __devinit quirk_ich7_lpc(struct pci_dev *dev)
  472. {
  473. /* We share the common ACPI/DPIO decode with ICH6 */
  474. ich6_lpc_acpi_gpio(dev);
  475. /* And have 4 ICH7+ generic decodes */
  476. ich7_lpc_generic_decode(dev, 0x84, "ICH7 LPC Generic IO decode 1");
  477. ich7_lpc_generic_decode(dev, 0x88, "ICH7 LPC Generic IO decode 2");
  478. ich7_lpc_generic_decode(dev, 0x8c, "ICH7 LPC Generic IO decode 3");
  479. ich7_lpc_generic_decode(dev, 0x90, "ICH7 LPC Generic IO decode 4");
  480. }
  481. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich7_lpc);
  482. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich7_lpc);
  483. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich7_lpc);
  484. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich7_lpc);
  485. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich7_lpc);
  486. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich7_lpc);
  487. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich7_lpc);
  488. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich7_lpc);
  489. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich7_lpc);
  490. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich7_lpc);
  491. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich7_lpc);
  492. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich7_lpc);
  493. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1, quirk_ich7_lpc);
  494. /*
  495. * VIA ACPI: One IO region pointed to by longword at
  496. * 0x48 or 0x20 (256 bytes of ACPI registers)
  497. */
  498. static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
  499. {
  500. u32 region;
  501. if (dev->revision & 0x10) {
  502. pci_read_config_dword(dev, 0x48, &region);
  503. region &= PCI_BASE_ADDRESS_IO_MASK;
  504. quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
  505. }
  506. }
  507. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi);
  508. /*
  509. * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
  510. * 0x48 (256 bytes of ACPI registers)
  511. * 0x70 (128 bytes of hardware monitoring register)
  512. * 0x90 (16 bytes of SMB registers)
  513. */
  514. static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
  515. {
  516. u16 hm;
  517. u32 smb;
  518. quirk_vt82c586_acpi(dev);
  519. pci_read_config_word(dev, 0x70, &hm);
  520. hm &= PCI_BASE_ADDRESS_IO_MASK;
  521. quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
  522. pci_read_config_dword(dev, 0x90, &smb);
  523. smb &= PCI_BASE_ADDRESS_IO_MASK;
  524. quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
  525. }
  526. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi);
  527. /*
  528. * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
  529. * 0x88 (128 bytes of power management registers)
  530. * 0xd0 (16 bytes of SMB registers)
  531. */
  532. static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
  533. {
  534. u16 pm, smb;
  535. pci_read_config_word(dev, 0x88, &pm);
  536. pm &= PCI_BASE_ADDRESS_IO_MASK;
  537. quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
  538. pci_read_config_word(dev, 0xd0, &smb);
  539. smb &= PCI_BASE_ADDRESS_IO_MASK;
  540. quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
  541. }
  542. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
  543. #ifdef CONFIG_X86_IO_APIC
  544. #include <asm/io_apic.h>
  545. /*
  546. * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
  547. * devices to the external APIC.
  548. *
  549. * TODO: When we have device-specific interrupt routers,
  550. * this code will go away from quirks.
  551. */
  552. static void quirk_via_ioapic(struct pci_dev *dev)
  553. {
  554. u8 tmp;
  555. if (nr_ioapics < 1)
  556. tmp = 0; /* nothing routed to external APIC */
  557. else
  558. tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
  559. dev_info(&dev->dev, "%sbling VIA external APIC routing\n",
  560. tmp == 0 ? "Disa" : "Ena");
  561. /* Offset 0x58: External APIC IRQ output control */
  562. pci_write_config_byte (dev, 0x58, tmp);
  563. }
  564. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
  565. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
  566. /*
  567. * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
  568. * This leads to doubled level interrupt rates.
  569. * Set this bit to get rid of cycle wastage.
  570. * Otherwise uncritical.
  571. */
  572. static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
  573. {
  574. u8 misc_control2;
  575. #define BYPASS_APIC_DEASSERT 8
  576. pci_read_config_byte(dev, 0x5B, &misc_control2);
  577. if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
  578. dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
  579. pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
  580. }
  581. }
  582. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
  583. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
  584. /*
  585. * The AMD io apic can hang the box when an apic irq is masked.
  586. * We check all revs >= B0 (yet not in the pre production!) as the bug
  587. * is currently marked NoFix
  588. *
  589. * We have multiple reports of hangs with this chipset that went away with
  590. * noapic specified. For the moment we assume it's the erratum. We may be wrong
  591. * of course. However the advice is demonstrably good even if so..
  592. */
  593. static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
  594. {
  595. if (dev->revision >= 0x02) {
  596. dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
  597. dev_warn(&dev->dev, " : booting with the \"noapic\" option\n");
  598. }
  599. }
  600. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
  601. static void __init quirk_ioapic_rmw(struct pci_dev *dev)
  602. {
  603. if (dev->devfn == 0 && dev->bus->number == 0)
  604. sis_apic_bug = 1;
  605. }
  606. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw);
  607. #endif /* CONFIG_X86_IO_APIC */
  608. /*
  609. * Some settings of MMRBC can lead to data corruption so block changes.
  610. * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
  611. */
  612. static void __init quirk_amd_8131_mmrbc(struct pci_dev *dev)
  613. {
  614. if (dev->subordinate && dev->revision <= 0x12) {
  615. dev_info(&dev->dev, "AMD8131 rev %x detected; "
  616. "disabling PCI-X MMRBC\n", dev->revision);
  617. dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
  618. }
  619. }
  620. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
  621. /*
  622. * FIXME: it is questionable that quirk_via_acpi
  623. * is needed. It shows up as an ISA bridge, and does not
  624. * support the PCI_INTERRUPT_LINE register at all. Therefore
  625. * it seems like setting the pci_dev's 'irq' to the
  626. * value of the ACPI SCI interrupt is only done for convenience.
  627. * -jgarzik
  628. */
  629. static void __devinit quirk_via_acpi(struct pci_dev *d)
  630. {
  631. /*
  632. * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
  633. */
  634. u8 irq;
  635. pci_read_config_byte(d, 0x42, &irq);
  636. irq &= 0xf;
  637. if (irq && (irq != 2))
  638. d->irq = irq;
  639. }
  640. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi);
  641. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi);
  642. /*
  643. * VIA bridges which have VLink
  644. */
  645. static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
  646. static void quirk_via_bridge(struct pci_dev *dev)
  647. {
  648. /* See what bridge we have and find the device ranges */
  649. switch (dev->device) {
  650. case PCI_DEVICE_ID_VIA_82C686:
  651. /* The VT82C686 is special, it attaches to PCI and can have
  652. any device number. All its subdevices are functions of
  653. that single device. */
  654. via_vlink_dev_lo = PCI_SLOT(dev->devfn);
  655. via_vlink_dev_hi = PCI_SLOT(dev->devfn);
  656. break;
  657. case PCI_DEVICE_ID_VIA_8237:
  658. case PCI_DEVICE_ID_VIA_8237A:
  659. via_vlink_dev_lo = 15;
  660. break;
  661. case PCI_DEVICE_ID_VIA_8235:
  662. via_vlink_dev_lo = 16;
  663. break;
  664. case PCI_DEVICE_ID_VIA_8231:
  665. case PCI_DEVICE_ID_VIA_8233_0:
  666. case PCI_DEVICE_ID_VIA_8233A:
  667. case PCI_DEVICE_ID_VIA_8233C_0:
  668. via_vlink_dev_lo = 17;
  669. break;
  670. }
  671. }
  672. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
  673. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
  674. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
  675. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
  676. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
  677. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
  678. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
  679. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
  680. /**
  681. * quirk_via_vlink - VIA VLink IRQ number update
  682. * @dev: PCI device
  683. *
  684. * If the device we are dealing with is on a PIC IRQ we need to
  685. * ensure that the IRQ line register which usually is not relevant
  686. * for PCI cards, is actually written so that interrupts get sent
  687. * to the right place.
  688. * We only do this on systems where a VIA south bridge was detected,
  689. * and only for VIA devices on the motherboard (see quirk_via_bridge
  690. * above).
  691. */
  692. static void quirk_via_vlink(struct pci_dev *dev)
  693. {
  694. u8 irq, new_irq;
  695. /* Check if we have VLink at all */
  696. if (via_vlink_dev_lo == -1)
  697. return;
  698. new_irq = dev->irq;
  699. /* Don't quirk interrupts outside the legacy IRQ range */
  700. if (!new_irq || new_irq > 15)
  701. return;
  702. /* Internal device ? */
  703. if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
  704. PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
  705. return;
  706. /* This is an internal VLink device on a PIC interrupt. The BIOS
  707. ought to have set this but may not have, so we redo it */
  708. pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
  709. if (new_irq != irq) {
  710. dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n",
  711. irq, new_irq);
  712. udelay(15); /* unknown if delay really needed */
  713. pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
  714. }
  715. }
  716. DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
  717. /*
  718. * VIA VT82C598 has its device ID settable and many BIOSes
  719. * set it to the ID of VT82C597 for backward compatibility.
  720. * We need to switch it off to be able to recognize the real
  721. * type of the chip.
  722. */
  723. static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
  724. {
  725. pci_write_config_byte(dev, 0xfc, 0);
  726. pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
  727. }
  728. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id);
  729. /*
  730. * CardBus controllers have a legacy base address that enables them
  731. * to respond as i82365 pcmcia controllers. We don't want them to
  732. * do this even if the Linux CardBus driver is not loaded, because
  733. * the Linux i82365 driver does not (and should not) handle CardBus.
  734. */
  735. static void quirk_cardbus_legacy(struct pci_dev *dev)
  736. {
  737. if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
  738. return;
  739. pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
  740. }
  741. DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
  742. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
  743. /*
  744. * Following the PCI ordering rules is optional on the AMD762. I'm not
  745. * sure what the designers were smoking but let's not inhale...
  746. *
  747. * To be fair to AMD, it follows the spec by default, its BIOS people
  748. * who turn it off!
  749. */
  750. static void quirk_amd_ordering(struct pci_dev *dev)
  751. {
  752. u32 pcic;
  753. pci_read_config_dword(dev, 0x4C, &pcic);
  754. if ((pcic&6)!=6) {
  755. pcic |= 6;
  756. dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n");
  757. pci_write_config_dword(dev, 0x4C, pcic);
  758. pci_read_config_dword(dev, 0x84, &pcic);
  759. pcic |= (1<<23); /* Required in this mode */
  760. pci_write_config_dword(dev, 0x84, pcic);
  761. }
  762. }
  763. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
  764. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
  765. /*
  766. * DreamWorks provided workaround for Dunord I-3000 problem
  767. *
  768. * This card decodes and responds to addresses not apparently
  769. * assigned to it. We force a larger allocation to ensure that
  770. * nothing gets put too close to it.
  771. */
  772. static void __devinit quirk_dunord ( struct pci_dev * dev )
  773. {
  774. struct resource *r = &dev->resource [1];
  775. r->start = 0;
  776. r->end = 0xffffff;
  777. }
  778. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord);
  779. /*
  780. * i82380FB mobile docking controller: its PCI-to-PCI bridge
  781. * is subtractive decoding (transparent), and does indicate this
  782. * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
  783. * instead of 0x01.
  784. */
  785. static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
  786. {
  787. dev->transparent = 1;
  788. }
  789. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge);
  790. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge);
  791. /*
  792. * Common misconfiguration of the MediaGX/Geode PCI master that will
  793. * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
  794. * datasheets found at http://www.national.com/ds/GX for info on what
  795. * these bits do. <christer@weinigel.se>
  796. */
  797. static void quirk_mediagx_master(struct pci_dev *dev)
  798. {
  799. u8 reg;
  800. pci_read_config_byte(dev, 0x41, &reg);
  801. if (reg & 2) {
  802. reg &= ~2;
  803. dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
  804. pci_write_config_byte(dev, 0x41, reg);
  805. }
  806. }
  807. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
  808. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
  809. /*
  810. * Ensure C0 rev restreaming is off. This is normally done by
  811. * the BIOS but in the odd case it is not the results are corruption
  812. * hence the presence of a Linux check
  813. */
  814. static void quirk_disable_pxb(struct pci_dev *pdev)
  815. {
  816. u16 config;
  817. if (pdev->revision != 0x04) /* Only C0 requires this */
  818. return;
  819. pci_read_config_word(pdev, 0x40, &config);
  820. if (config & (1<<6)) {
  821. config &= ~(1<<6);
  822. pci_write_config_word(pdev, 0x40, config);
  823. dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n");
  824. }
  825. }
  826. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
  827. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
  828. static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
  829. {
  830. /* set sb600/sb700/sb800 sata to ahci mode */
  831. u8 tmp;
  832. pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
  833. if (tmp == 0x01) {
  834. pci_read_config_byte(pdev, 0x40, &tmp);
  835. pci_write_config_byte(pdev, 0x40, tmp|1);
  836. pci_write_config_byte(pdev, 0x9, 1);
  837. pci_write_config_byte(pdev, 0xa, 6);
  838. pci_write_config_byte(pdev, 0x40, tmp);
  839. pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
  840. dev_info(&pdev->dev, "set SATA to AHCI mode\n");
  841. }
  842. }
  843. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
  844. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
  845. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
  846. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
  847. /*
  848. * Serverworks CSB5 IDE does not fully support native mode
  849. */
  850. static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
  851. {
  852. u8 prog;
  853. pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
  854. if (prog & 5) {
  855. prog &= ~5;
  856. pdev->class &= ~5;
  857. pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
  858. /* PCI layer will sort out resources */
  859. }
  860. }
  861. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
  862. /*
  863. * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
  864. */
  865. static void __init quirk_ide_samemode(struct pci_dev *pdev)
  866. {
  867. u8 prog;
  868. pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
  869. if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
  870. dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n");
  871. prog &= ~5;
  872. pdev->class &= ~5;
  873. pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
  874. }
  875. }
  876. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
  877. /*
  878. * Some ATA devices break if put into D3
  879. */
  880. static void __devinit quirk_no_ata_d3(struct pci_dev *pdev)
  881. {
  882. /* Quirk the legacy ATA devices only. The AHCI ones are ok */
  883. if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE)
  884. pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
  885. }
  886. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, quirk_no_ata_d3);
  887. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_no_ata_d3);
  888. /* This was originally an Alpha specific thing, but it really fits here.
  889. * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
  890. */
  891. static void __init quirk_eisa_bridge(struct pci_dev *dev)
  892. {
  893. dev->class = PCI_CLASS_BRIDGE_EISA << 8;
  894. }
  895. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge);
  896. /*
  897. * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
  898. * is not activated. The myth is that Asus said that they do not want the
  899. * users to be irritated by just another PCI Device in the Win98 device
  900. * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
  901. * package 2.7.0 for details)
  902. *
  903. * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
  904. * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
  905. * becomes necessary to do this tweak in two steps -- the chosen trigger
  906. * is either the Host bridge (preferred) or on-board VGA controller.
  907. *
  908. * Note that we used to unhide the SMBus that way on Toshiba laptops
  909. * (Satellite A40 and Tecra M2) but then found that the thermal management
  910. * was done by SMM code, which could cause unsynchronized concurrent
  911. * accesses to the SMBus registers, with potentially bad effects. Thus you
  912. * should be very careful when adding new entries: if SMM is accessing the
  913. * Intel SMBus, this is a very good reason to leave it hidden.
  914. *
  915. * Likewise, many recent laptops use ACPI for thermal management. If the
  916. * ACPI DSDT code accesses the SMBus, then Linux should not access it
  917. * natively, and keeping the SMBus hidden is the right thing to do. If you
  918. * are about to add an entry in the table below, please first disassemble
  919. * the DSDT and double-check that there is no code accessing the SMBus.
  920. */
  921. static int asus_hides_smbus;
  922. static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
  923. {
  924. if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
  925. if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
  926. switch(dev->subsystem_device) {
  927. case 0x8025: /* P4B-LX */
  928. case 0x8070: /* P4B */
  929. case 0x8088: /* P4B533 */
  930. case 0x1626: /* L3C notebook */
  931. asus_hides_smbus = 1;
  932. }
  933. else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
  934. switch(dev->subsystem_device) {
  935. case 0x80b1: /* P4GE-V */
  936. case 0x80b2: /* P4PE */
  937. case 0x8093: /* P4B533-V */
  938. asus_hides_smbus = 1;
  939. }
  940. else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
  941. switch(dev->subsystem_device) {
  942. case 0x8030: /* P4T533 */
  943. asus_hides_smbus = 1;
  944. }
  945. else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
  946. switch (dev->subsystem_device) {
  947. case 0x8070: /* P4G8X Deluxe */
  948. asus_hides_smbus = 1;
  949. }
  950. else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
  951. switch (dev->subsystem_device) {
  952. case 0x80c9: /* PU-DLS */
  953. asus_hides_smbus = 1;
  954. }
  955. else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
  956. switch (dev->subsystem_device) {
  957. case 0x1751: /* M2N notebook */
  958. case 0x1821: /* M5N notebook */
  959. asus_hides_smbus = 1;
  960. }
  961. else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
  962. switch (dev->subsystem_device) {
  963. case 0x184b: /* W1N notebook */
  964. case 0x186a: /* M6Ne notebook */
  965. asus_hides_smbus = 1;
  966. }
  967. else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
  968. switch (dev->subsystem_device) {
  969. case 0x80f2: /* P4P800-X */
  970. asus_hides_smbus = 1;
  971. }
  972. else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
  973. switch (dev->subsystem_device) {
  974. case 0x1882: /* M6V notebook */
  975. case 0x1977: /* A6VA notebook */
  976. asus_hides_smbus = 1;
  977. }
  978. } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
  979. if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
  980. switch(dev->subsystem_device) {
  981. case 0x088C: /* HP Compaq nc8000 */
  982. case 0x0890: /* HP Compaq nc6000 */
  983. asus_hides_smbus = 1;
  984. }
  985. else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
  986. switch (dev->subsystem_device) {
  987. case 0x12bc: /* HP D330L */
  988. case 0x12bd: /* HP D530 */
  989. asus_hides_smbus = 1;
  990. }
  991. else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
  992. switch (dev->subsystem_device) {
  993. case 0x12bf: /* HP xw4100 */
  994. asus_hides_smbus = 1;
  995. }
  996. } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
  997. if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
  998. switch(dev->subsystem_device) {
  999. case 0xC00C: /* Samsung P35 notebook */
  1000. asus_hides_smbus = 1;
  1001. }
  1002. } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
  1003. if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
  1004. switch(dev->subsystem_device) {
  1005. case 0x0058: /* Compaq Evo N620c */
  1006. asus_hides_smbus = 1;
  1007. }
  1008. else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
  1009. switch(dev->subsystem_device) {
  1010. case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
  1011. /* Motherboard doesn't have Host bridge
  1012. * subvendor/subdevice IDs, therefore checking
  1013. * its on-board VGA controller */
  1014. asus_hides_smbus = 1;
  1015. }
  1016. else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_IG)
  1017. switch(dev->subsystem_device) {
  1018. case 0x00b8: /* Compaq Evo D510 CMT */
  1019. case 0x00b9: /* Compaq Evo D510 SFF */
  1020. asus_hides_smbus = 1;
  1021. }
  1022. else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC)
  1023. switch (dev->subsystem_device) {
  1024. case 0x001A: /* Compaq Deskpro EN SSF P667 815E */
  1025. /* Motherboard doesn't have host bridge
  1026. * subvendor/subdevice IDs, therefore checking
  1027. * its on-board VGA controller */
  1028. asus_hides_smbus = 1;
  1029. }
  1030. }
  1031. }
  1032. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge);
  1033. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge);
  1034. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge);
  1035. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge);
  1036. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge);
  1037. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge);
  1038. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge);
  1039. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge);
  1040. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge);
  1041. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
  1042. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge);
  1043. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_IG, asus_hides_smbus_hostbridge);
  1044. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge);
  1045. static void asus_hides_smbus_lpc(struct pci_dev *dev)
  1046. {
  1047. u16 val;
  1048. if (likely(!asus_hides_smbus))
  1049. return;
  1050. pci_read_config_word(dev, 0xF2, &val);
  1051. if (val & 0x8) {
  1052. pci_write_config_word(dev, 0xF2, val & (~0x8));
  1053. pci_read_config_word(dev, 0xF2, &val);
  1054. if (val & 0x8)
  1055. dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
  1056. else
  1057. dev_info(&dev->dev, "Enabled i801 SMBus device\n");
  1058. }
  1059. }
  1060. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
  1061. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
  1062. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
  1063. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
  1064. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
  1065. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
  1066. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
  1067. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
  1068. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
  1069. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
  1070. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
  1071. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
  1072. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
  1073. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
  1074. /* It appears we just have one such device. If not, we have a warning */
  1075. static void __iomem *asus_rcba_base;
  1076. static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev)
  1077. {
  1078. u32 rcba;
  1079. if (likely(!asus_hides_smbus))
  1080. return;
  1081. WARN_ON(asus_rcba_base);
  1082. pci_read_config_dword(dev, 0xF0, &rcba);
  1083. /* use bits 31:14, 16 kB aligned */
  1084. asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000);
  1085. if (asus_rcba_base == NULL)
  1086. return;
  1087. }
  1088. static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev)
  1089. {
  1090. u32 val;
  1091. if (likely(!asus_hides_smbus || !asus_rcba_base))
  1092. return;
  1093. /* read the Function Disable register, dword mode only */
  1094. val = readl(asus_rcba_base + 0x3418);
  1095. writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */
  1096. }
  1097. static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev)
  1098. {
  1099. if (likely(!asus_hides_smbus || !asus_rcba_base))
  1100. return;
  1101. iounmap(asus_rcba_base);
  1102. asus_rcba_base = NULL;
  1103. dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n");
  1104. }
  1105. static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
  1106. {
  1107. asus_hides_smbus_lpc_ich6_suspend(dev);
  1108. asus_hides_smbus_lpc_ich6_resume_early(dev);
  1109. asus_hides_smbus_lpc_ich6_resume(dev);
  1110. }
  1111. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6);
  1112. DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend);
  1113. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume);
  1114. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early);
  1115. /*
  1116. * SiS 96x south bridge: BIOS typically hides SMBus device...
  1117. */
  1118. static void quirk_sis_96x_smbus(struct pci_dev *dev)
  1119. {
  1120. u8 val = 0;
  1121. pci_read_config_byte(dev, 0x77, &val);
  1122. if (val & 0x10) {
  1123. dev_info(&dev->dev, "Enabling SiS 96x SMBus\n");
  1124. pci_write_config_byte(dev, 0x77, val & ~0x10);
  1125. }
  1126. }
  1127. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
  1128. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
  1129. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
  1130. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
  1131. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
  1132. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
  1133. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
  1134. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
  1135. /*
  1136. * ... This is further complicated by the fact that some SiS96x south
  1137. * bridges pretend to be 85C503/5513 instead. In that case see if we
  1138. * spotted a compatible north bridge to make sure.
  1139. * (pci_find_device doesn't work yet)
  1140. *
  1141. * We can also enable the sis96x bit in the discovery register..
  1142. */
  1143. #define SIS_DETECT_REGISTER 0x40
  1144. static void quirk_sis_503(struct pci_dev *dev)
  1145. {
  1146. u8 reg;
  1147. u16 devid;
  1148. pci_read_config_byte(dev, SIS_DETECT_REGISTER, &reg);
  1149. pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
  1150. pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
  1151. if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
  1152. pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
  1153. return;
  1154. }
  1155. /*
  1156. * Ok, it now shows up as a 96x.. run the 96x quirk by
  1157. * hand in case it has already been processed.
  1158. * (depends on link order, which is apparently not guaranteed)
  1159. */
  1160. dev->device = devid;
  1161. quirk_sis_96x_smbus(dev);
  1162. }
  1163. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
  1164. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
  1165. /*
  1166. * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
  1167. * and MC97 modem controller are disabled when a second PCI soundcard is
  1168. * present. This patch, tweaking the VT8237 ISA bridge, enables them.
  1169. * -- bjd
  1170. */
  1171. static void asus_hides_ac97_lpc(struct pci_dev *dev)
  1172. {
  1173. u8 val;
  1174. int asus_hides_ac97 = 0;
  1175. if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
  1176. if (dev->device == PCI_DEVICE_ID_VIA_8237)
  1177. asus_hides_ac97 = 1;
  1178. }
  1179. if (!asus_hides_ac97)
  1180. return;
  1181. pci_read_config_byte(dev, 0x50, &val);
  1182. if (val & 0xc0) {
  1183. pci_write_config_byte(dev, 0x50, val & (~0xc0));
  1184. pci_read_config_byte(dev, 0x50, &val);
  1185. if (val & 0xc0)
  1186. dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
  1187. else
  1188. dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n");
  1189. }
  1190. }
  1191. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
  1192. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
  1193. #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
  1194. /*
  1195. * If we are using libata we can drive this chip properly but must
  1196. * do this early on to make the additional device appear during
  1197. * the PCI scanning.
  1198. */
  1199. static void quirk_jmicron_ata(struct pci_dev *pdev)
  1200. {
  1201. u32 conf1, conf5, class;
  1202. u8 hdr;
  1203. /* Only poke fn 0 */
  1204. if (PCI_FUNC(pdev->devfn))
  1205. return;
  1206. pci_read_config_dword(pdev, 0x40, &conf1);
  1207. pci_read_config_dword(pdev, 0x80, &conf5);
  1208. conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
  1209. conf5 &= ~(1 << 24); /* Clear bit 24 */
  1210. switch (pdev->device) {
  1211. case PCI_DEVICE_ID_JMICRON_JMB360:
  1212. /* The controller should be in single function ahci mode */
  1213. conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
  1214. break;
  1215. case PCI_DEVICE_ID_JMICRON_JMB365:
  1216. case PCI_DEVICE_ID_JMICRON_JMB366:
  1217. /* Redirect IDE second PATA port to the right spot */
  1218. conf5 |= (1 << 24);
  1219. /* Fall through */
  1220. case PCI_DEVICE_ID_JMICRON_JMB361:
  1221. case PCI_DEVICE_ID_JMICRON_JMB363:
  1222. /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
  1223. /* Set the class codes correctly and then direct IDE 0 */
  1224. conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
  1225. break;
  1226. case PCI_DEVICE_ID_JMICRON_JMB368:
  1227. /* The controller should be in single function IDE mode */
  1228. conf1 |= 0x00C00000; /* Set 22, 23 */
  1229. break;
  1230. }
  1231. pci_write_config_dword(pdev, 0x40, conf1);
  1232. pci_write_config_dword(pdev, 0x80, conf5);
  1233. /* Update pdev accordingly */
  1234. pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
  1235. pdev->hdr_type = hdr & 0x7f;
  1236. pdev->multifunction = !!(hdr & 0x80);
  1237. pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
  1238. pdev->class = class >> 8;
  1239. }
  1240. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
  1241. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
  1242. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
  1243. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
  1244. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
  1245. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
  1246. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
  1247. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
  1248. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
  1249. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
  1250. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
  1251. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
  1252. #endif
  1253. #ifdef CONFIG_X86_IO_APIC
  1254. static void __init quirk_alder_ioapic(struct pci_dev *pdev)
  1255. {
  1256. int i;
  1257. if ((pdev->class >> 8) != 0xff00)
  1258. return;
  1259. /* the first BAR is the location of the IO APIC...we must
  1260. * not touch this (and it's already covered by the fixmap), so
  1261. * forcibly insert it into the resource tree */
  1262. if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
  1263. insert_resource(&iomem_resource, &pdev->resource[0]);
  1264. /* The next five BARs all seem to be rubbish, so just clean
  1265. * them out */
  1266. for (i=1; i < 6; i++) {
  1267. memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
  1268. }
  1269. }
  1270. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
  1271. #endif
  1272. static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
  1273. {
  1274. pcie_mch_quirk = 1;
  1275. }
  1276. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
  1277. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
  1278. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
  1279. /*
  1280. * It's possible for the MSI to get corrupted if shpc and acpi
  1281. * are used together on certain PXH-based systems.
  1282. */
  1283. static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
  1284. {
  1285. pci_msi_off(dev);
  1286. dev->no_msi = 1;
  1287. dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n");
  1288. }
  1289. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
  1290. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
  1291. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
  1292. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
  1293. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
  1294. /*
  1295. * Some Intel PCI Express chipsets have trouble with downstream
  1296. * device power management.
  1297. */
  1298. static void quirk_intel_pcie_pm(struct pci_dev * dev)
  1299. {
  1300. pci_pm_d3_delay = 120;
  1301. dev->no_d1d2 = 1;
  1302. }
  1303. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
  1304. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
  1305. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
  1306. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
  1307. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
  1308. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
  1309. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
  1310. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
  1311. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
  1312. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
  1313. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
  1314. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
  1315. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
  1316. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
  1317. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
  1318. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
  1319. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
  1320. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
  1321. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
  1322. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
  1323. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
  1324. #ifdef CONFIG_X86_IO_APIC
  1325. /*
  1326. * Boot interrupts on some chipsets cannot be turned off. For these chipsets,
  1327. * remap the original interrupt in the linux kernel to the boot interrupt, so
  1328. * that a PCI device's interrupt handler is installed on the boot interrupt
  1329. * line instead.
  1330. */
  1331. static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev)
  1332. {
  1333. if (noioapicquirk || noioapicreroute)
  1334. return;
  1335. dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT;
  1336. printk(KERN_INFO "PCI quirk: reroute interrupts for 0x%04x:0x%04x\n",
  1337. dev->vendor, dev->device);
  1338. return;
  1339. }
  1340. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
  1341. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
  1342. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
  1343. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
  1344. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
  1345. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
  1346. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
  1347. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
  1348. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
  1349. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
  1350. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
  1351. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
  1352. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
  1353. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
  1354. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
  1355. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
  1356. /*
  1357. * On some chipsets we can disable the generation of legacy INTx boot
  1358. * interrupts.
  1359. */
  1360. /*
  1361. * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no
  1362. * 300641-004US, section 5.7.3.
  1363. */
  1364. #define INTEL_6300_IOAPIC_ABAR 0x40
  1365. #define INTEL_6300_DISABLE_BOOT_IRQ (1<<14)
  1366. static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
  1367. {
  1368. u16 pci_config_word;
  1369. if (noioapicquirk)
  1370. return;
  1371. pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word);
  1372. pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ;
  1373. pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word);
  1374. printk(KERN_INFO "disabled boot interrupt on device 0x%04x:0x%04x\n",
  1375. dev->vendor, dev->device);
  1376. }
  1377. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
  1378. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
  1379. /*
  1380. * disable boot interrupts on HT-1000
  1381. */
  1382. #define BC_HT1000_FEATURE_REG 0x64
  1383. #define BC_HT1000_PIC_REGS_ENABLE (1<<0)
  1384. #define BC_HT1000_MAP_IDX 0xC00
  1385. #define BC_HT1000_MAP_DATA 0xC01
  1386. static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
  1387. {
  1388. u32 pci_config_dword;
  1389. u8 irq;
  1390. if (noioapicquirk)
  1391. return;
  1392. pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
  1393. pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
  1394. BC_HT1000_PIC_REGS_ENABLE);
  1395. for (irq = 0x10; irq < 0x10 + 32; irq++) {
  1396. outb(irq, BC_HT1000_MAP_IDX);
  1397. outb(0x00, BC_HT1000_MAP_DATA);
  1398. }
  1399. pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
  1400. printk(KERN_INFO "disabled boot interrupts on PCI device"
  1401. "0x%04x:0x%04x\n", dev->vendor, dev->device);
  1402. }
  1403. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
  1404. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
  1405. /*
  1406. * disable boot interrupts on AMD and ATI chipsets
  1407. */
  1408. /*
  1409. * NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131
  1410. * rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode
  1411. * (due to an erratum).
  1412. */
  1413. #define AMD_813X_MISC 0x40
  1414. #define AMD_813X_NOIOAMODE (1<<0)
  1415. #define AMD_813X_REV_B2 0x13
  1416. static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
  1417. {
  1418. u32 pci_config_dword;
  1419. if (noioapicquirk)
  1420. return;
  1421. if (dev->revision == AMD_813X_REV_B2)
  1422. return;
  1423. pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
  1424. pci_config_dword &= ~AMD_813X_NOIOAMODE;
  1425. pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword);
  1426. printk(KERN_INFO "disabled boot interrupts on PCI device "
  1427. "0x%04x:0x%04x\n", dev->vendor, dev->device);
  1428. }
  1429. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
  1430. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
  1431. #define AMD_8111_PCI_IRQ_ROUTING 0x56
  1432. static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev)
  1433. {
  1434. u16 pci_config_word;
  1435. if (noioapicquirk)
  1436. return;
  1437. pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word);
  1438. if (!pci_config_word) {
  1439. printk(KERN_INFO "boot interrupts on PCI device 0x%04x:0x%04x "
  1440. "already disabled\n",
  1441. dev->vendor, dev->device);
  1442. return;
  1443. }
  1444. pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0);
  1445. printk(KERN_INFO "disabled boot interrupts on PCI device "
  1446. "0x%04x:0x%04x\n", dev->vendor, dev->device);
  1447. }
  1448. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
  1449. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
  1450. #endif /* CONFIG_X86_IO_APIC */
  1451. /*
  1452. * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
  1453. * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
  1454. * Re-allocate the region if needed...
  1455. */
  1456. static void __init quirk_tc86c001_ide(struct pci_dev *dev)
  1457. {
  1458. struct resource *r = &dev->resource[0];
  1459. if (r->start & 0x8) {
  1460. r->start = 0;
  1461. r->end = 0xf;
  1462. }
  1463. }
  1464. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
  1465. PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
  1466. quirk_tc86c001_ide);
  1467. static void __devinit quirk_netmos(struct pci_dev *dev)
  1468. {
  1469. unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
  1470. unsigned int num_serial = dev->subsystem_device & 0xf;
  1471. /*
  1472. * These Netmos parts are multiport serial devices with optional
  1473. * parallel ports. Even when parallel ports are present, they
  1474. * are identified as class SERIAL, which means the serial driver
  1475. * will claim them. To prevent this, mark them as class OTHER.
  1476. * These combo devices should be claimed by parport_serial.
  1477. *
  1478. * The subdevice ID is of the form 0x00PS, where <P> is the number
  1479. * of parallel ports and <S> is the number of serial ports.
  1480. */
  1481. switch (dev->device) {
  1482. case PCI_DEVICE_ID_NETMOS_9735:
  1483. case PCI_DEVICE_ID_NETMOS_9745:
  1484. case PCI_DEVICE_ID_NETMOS_9835:
  1485. case PCI_DEVICE_ID_NETMOS_9845:
  1486. case PCI_DEVICE_ID_NETMOS_9855:
  1487. if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
  1488. num_parallel) {
  1489. dev_info(&dev->dev, "Netmos %04x (%u parallel, "
  1490. "%u serial); changing class SERIAL to OTHER "
  1491. "(use parport_serial)\n",
  1492. dev->device, num_parallel, num_serial);
  1493. dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
  1494. (dev->class & 0xff);
  1495. }
  1496. }
  1497. }
  1498. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
  1499. static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
  1500. {
  1501. u16 command, pmcsr;
  1502. u8 __iomem *csr;
  1503. u8 cmd_hi;
  1504. int pm;
  1505. switch (dev->device) {
  1506. /* PCI IDs taken from drivers/net/e100.c */
  1507. case 0x1029:
  1508. case 0x1030 ... 0x1034:
  1509. case 0x1038 ... 0x103E:
  1510. case 0x1050 ... 0x1057:
  1511. case 0x1059:
  1512. case 0x1064 ... 0x106B:
  1513. case 0x1091 ... 0x1095:
  1514. case 0x1209:
  1515. case 0x1229:
  1516. case 0x2449:
  1517. case 0x2459:
  1518. case 0x245D:
  1519. case 0x27DC:
  1520. break;
  1521. default:
  1522. return;
  1523. }
  1524. /*
  1525. * Some firmware hands off the e100 with interrupts enabled,
  1526. * which can cause a flood of interrupts if packets are
  1527. * received before the driver attaches to the device. So
  1528. * disable all e100 interrupts here. The driver will
  1529. * re-enable them when it's ready.
  1530. */
  1531. pci_read_config_word(dev, PCI_COMMAND, &command);
  1532. if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
  1533. return;
  1534. /*
  1535. * Check that the device is in the D0 power state. If it's not,
  1536. * there is no point to look any further.
  1537. */
  1538. pm = pci_find_capability(dev, PCI_CAP_ID_PM);
  1539. if (pm) {
  1540. pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
  1541. if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
  1542. return;
  1543. }
  1544. /* Convert from PCI bus to resource space. */
  1545. csr = ioremap(pci_resource_start(dev, 0), 8);
  1546. if (!csr) {
  1547. dev_warn(&dev->dev, "Can't map e100 registers\n");
  1548. return;
  1549. }
  1550. cmd_hi = readb(csr + 3);
  1551. if (cmd_hi == 0) {
  1552. dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; "
  1553. "disabling\n");
  1554. writeb(1, csr + 3);
  1555. }
  1556. iounmap(csr);
  1557. }
  1558. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
  1559. /*
  1560. * The 82575 and 82598 may experience data corruption issues when transitioning
  1561. * out of L0S. To prevent this we need to disable L0S on the pci-e link
  1562. */
  1563. static void __devinit quirk_disable_aspm_l0s(struct pci_dev *dev)
  1564. {
  1565. dev_info(&dev->dev, "Disabling L0s\n");
  1566. pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
  1567. }
  1568. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s);
  1569. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s);
  1570. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s);
  1571. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s);
  1572. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s);
  1573. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s);
  1574. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s);
  1575. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s);
  1576. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s);
  1577. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s);
  1578. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s);
  1579. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
  1580. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
  1581. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
  1582. static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
  1583. {
  1584. /* rev 1 ncr53c810 chips don't set the class at all which means
  1585. * they don't get their resources remapped. Fix that here.
  1586. */
  1587. if (dev->class == PCI_CLASS_NOT_DEFINED) {
  1588. dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n");
  1589. dev->class = PCI_CLASS_STORAGE_SCSI;
  1590. }
  1591. }
  1592. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
  1593. /* Enable 1k I/O space granularity on the Intel P64H2 */
  1594. static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
  1595. {
  1596. u16 en1k;
  1597. u8 io_base_lo, io_limit_lo;
  1598. unsigned long base, limit;
  1599. struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
  1600. pci_read_config_word(dev, 0x40, &en1k);
  1601. if (en1k & 0x200) {
  1602. dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n");
  1603. pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
  1604. pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
  1605. base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
  1606. limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
  1607. if (base <= limit) {
  1608. res->start = base;
  1609. res->end = limit + 0x3ff;
  1610. }
  1611. }
  1612. }
  1613. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
  1614. /* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
  1615. * The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
  1616. * in drivers/pci/setup-bus.c
  1617. */
  1618. static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
  1619. {
  1620. u16 en1k, iobl_adr, iobl_adr_1k;
  1621. struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
  1622. pci_read_config_word(dev, 0x40, &en1k);
  1623. if (en1k & 0x200) {
  1624. pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
  1625. iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
  1626. if (iobl_adr != iobl_adr_1k) {
  1627. dev_info(&dev->dev, "Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1KB granularity\n",
  1628. iobl_adr,iobl_adr_1k);
  1629. pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
  1630. }
  1631. }
  1632. }
  1633. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
  1634. /* Under some circumstances, AER is not linked with extended capabilities.
  1635. * Force it to be linked by setting the corresponding control bit in the
  1636. * config space.
  1637. */
  1638. static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
  1639. {
  1640. uint8_t b;
  1641. if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
  1642. if (!(b & 0x20)) {
  1643. pci_write_config_byte(dev, 0xf41, b | 0x20);
  1644. dev_info(&dev->dev,
  1645. "Linking AER extended capability\n");
  1646. }
  1647. }
  1648. }
  1649. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
  1650. quirk_nvidia_ck804_pcie_aer_ext_cap);
  1651. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
  1652. quirk_nvidia_ck804_pcie_aer_ext_cap);
  1653. static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
  1654. {
  1655. /*
  1656. * Disable PCI Bus Parking and PCI Master read caching on CX700
  1657. * which causes unspecified timing errors with a VT6212L on the PCI
  1658. * bus leading to USB2.0 packet loss. The defaults are that these
  1659. * features are turned off but some BIOSes turn them on.
  1660. */
  1661. uint8_t b;
  1662. if (pci_read_config_byte(dev, 0x76, &b) == 0) {
  1663. if (b & 0x40) {
  1664. /* Turn off PCI Bus Parking */
  1665. pci_write_config_byte(dev, 0x76, b ^ 0x40);
  1666. dev_info(&dev->dev,
  1667. "Disabling VIA CX700 PCI parking\n");
  1668. }
  1669. }
  1670. if (pci_read_config_byte(dev, 0x72, &b) == 0) {
  1671. if (b != 0) {
  1672. /* Turn off PCI Master read caching */
  1673. pci_write_config_byte(dev, 0x72, 0x0);
  1674. /* Set PCI Master Bus time-out to "1x16 PCLK" */
  1675. pci_write_config_byte(dev, 0x75, 0x1);
  1676. /* Disable "Read FIFO Timer" */
  1677. pci_write_config_byte(dev, 0x77, 0x0);
  1678. dev_info(&dev->dev,
  1679. "Disabling VIA CX700 PCI caching\n");
  1680. }
  1681. }
  1682. }
  1683. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
  1684. /*
  1685. * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
  1686. * VPD end tag will hang the device. This problem was initially
  1687. * observed when a vpd entry was created in sysfs
  1688. * ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry
  1689. * will dump 32k of data. Reading a full 32k will cause an access
  1690. * beyond the VPD end tag causing the device to hang. Once the device
  1691. * is hung, the bnx2 driver will not be able to reset the device.
  1692. * We believe that it is legal to read beyond the end tag and
  1693. * therefore the solution is to limit the read/write length.
  1694. */
  1695. static void __devinit quirk_brcm_570x_limit_vpd(struct pci_dev *dev)
  1696. {
  1697. /*
  1698. * Only disable the VPD capability for 5706, 5706S, 5708,
  1699. * 5708S and 5709 rev. A
  1700. */
  1701. if ((dev->device == PCI_DEVICE_ID_NX2_5706) ||
  1702. (dev->device == PCI_DEVICE_ID_NX2_5706S) ||
  1703. (dev->device == PCI_DEVICE_ID_NX2_5708) ||
  1704. (dev->device == PCI_DEVICE_ID_NX2_5708S) ||
  1705. ((dev->device == PCI_DEVICE_ID_NX2_5709) &&
  1706. (dev->revision & 0xf0) == 0x0)) {
  1707. if (dev->vpd)
  1708. dev->vpd->len = 0x80;
  1709. }
  1710. }
  1711. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1712. PCI_DEVICE_ID_NX2_5706,
  1713. quirk_brcm_570x_limit_vpd);
  1714. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1715. PCI_DEVICE_ID_NX2_5706S,
  1716. quirk_brcm_570x_limit_vpd);
  1717. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1718. PCI_DEVICE_ID_NX2_5708,
  1719. quirk_brcm_570x_limit_vpd);
  1720. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1721. PCI_DEVICE_ID_NX2_5708S,
  1722. quirk_brcm_570x_limit_vpd);
  1723. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1724. PCI_DEVICE_ID_NX2_5709,
  1725. quirk_brcm_570x_limit_vpd);
  1726. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1727. PCI_DEVICE_ID_NX2_5709S,
  1728. quirk_brcm_570x_limit_vpd);
  1729. #ifdef CONFIG_PCI_MSI
  1730. /* Some chipsets do not support MSI. We cannot easily rely on setting
  1731. * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
  1732. * some other busses controlled by the chipset even if Linux is not
  1733. * aware of it. Instead of setting the flag on all busses in the
  1734. * machine, simply disable MSI globally.
  1735. */
  1736. static void __init quirk_disable_all_msi(struct pci_dev *dev)
  1737. {
  1738. pci_no_msi();
  1739. dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n");
  1740. }
  1741. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
  1742. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
  1743. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
  1744. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
  1745. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
  1746. /* Disable MSI on chipsets that are known to not support it */
  1747. static void __devinit quirk_disable_msi(struct pci_dev *dev)
  1748. {
  1749. if (dev->subordinate) {
  1750. dev_warn(&dev->dev, "MSI quirk detected; "
  1751. "subordinate MSI disabled\n");
  1752. dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
  1753. }
  1754. }
  1755. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
  1756. /* Go through the list of Hypertransport capabilities and
  1757. * return 1 if a HT MSI capability is found and enabled */
  1758. static int __devinit msi_ht_cap_enabled(struct pci_dev *dev)
  1759. {
  1760. int pos, ttl = 48;
  1761. pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  1762. while (pos && ttl--) {
  1763. u8 flags;
  1764. if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
  1765. &flags) == 0)
  1766. {
  1767. dev_info(&dev->dev, "Found %s HT MSI Mapping\n",
  1768. flags & HT_MSI_FLAGS_ENABLE ?
  1769. "enabled" : "disabled");
  1770. return (flags & HT_MSI_FLAGS_ENABLE) != 0;
  1771. }
  1772. pos = pci_find_next_ht_capability(dev, pos,
  1773. HT_CAPTYPE_MSI_MAPPING);
  1774. }
  1775. return 0;
  1776. }
  1777. /* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
  1778. static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
  1779. {
  1780. if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
  1781. dev_warn(&dev->dev, "MSI quirk detected; "
  1782. "subordinate MSI disabled\n");
  1783. dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
  1784. }
  1785. }
  1786. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
  1787. quirk_msi_ht_cap);
  1788. /* The nVidia CK804 chipset may have 2 HT MSI mappings.
  1789. * MSI are supported if the MSI capability set in any of these mappings.
  1790. */
  1791. static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
  1792. {
  1793. struct pci_dev *pdev;
  1794. if (!dev->subordinate)
  1795. return;
  1796. /* check HT MSI cap on this chipset and the root one.
  1797. * a single one having MSI is enough to be sure that MSI are supported.
  1798. */
  1799. pdev = pci_get_slot(dev->bus, 0);
  1800. if (!pdev)
  1801. return;
  1802. if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
  1803. dev_warn(&dev->dev, "MSI quirk detected; "
  1804. "subordinate MSI disabled\n");
  1805. dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
  1806. }
  1807. pci_dev_put(pdev);
  1808. }
  1809. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
  1810. quirk_nvidia_ck804_msi_ht_cap);
  1811. /* Force enable MSI mapping capability on HT bridges */
  1812. static void __devinit ht_enable_msi_mapping(struct pci_dev *dev)
  1813. {
  1814. int pos, ttl = 48;
  1815. pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  1816. while (pos && ttl--) {
  1817. u8 flags;
  1818. if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
  1819. &flags) == 0) {
  1820. dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
  1821. pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
  1822. flags | HT_MSI_FLAGS_ENABLE);
  1823. }
  1824. pos = pci_find_next_ht_capability(dev, pos,
  1825. HT_CAPTYPE_MSI_MAPPING);
  1826. }
  1827. }
  1828. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
  1829. PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
  1830. ht_enable_msi_mapping);
  1831. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
  1832. ht_enable_msi_mapping);
  1833. /* The P5N32-SLI Premium motherboard from Asus has a problem with msi
  1834. * for the MCP55 NIC. It is not yet determined whether the msi problem
  1835. * also affects other devices. As for now, turn off msi for this device.
  1836. */
  1837. static void __devinit nvenet_msi_disable(struct pci_dev *dev)
  1838. {
  1839. if (dmi_name_in_vendors("P5N32-SLI PREMIUM")) {
  1840. dev_info(&dev->dev,
  1841. "Disabling msi for MCP55 NIC on P5N32-SLI Premium\n");
  1842. dev->no_msi = 1;
  1843. }
  1844. }
  1845. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
  1846. PCI_DEVICE_ID_NVIDIA_NVENET_15,
  1847. nvenet_msi_disable);
  1848. static void __devinit nv_ht_enable_msi_mapping(struct pci_dev *dev)
  1849. {
  1850. struct pci_dev *host_bridge;
  1851. int pos;
  1852. int i, dev_no;
  1853. int found = 0;
  1854. dev_no = dev->devfn >> 3;
  1855. for (i = dev_no; i >= 0; i--) {
  1856. host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0));
  1857. if (!host_bridge)
  1858. continue;
  1859. pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
  1860. if (pos != 0) {
  1861. found = 1;
  1862. break;
  1863. }
  1864. pci_dev_put(host_bridge);
  1865. }
  1866. if (!found)
  1867. return;
  1868. /* root did that ! */
  1869. if (msi_ht_cap_enabled(host_bridge))
  1870. goto out;
  1871. ht_enable_msi_mapping(dev);
  1872. out:
  1873. pci_dev_put(host_bridge);
  1874. }
  1875. static void __devinit ht_disable_msi_mapping(struct pci_dev *dev)
  1876. {
  1877. int pos, ttl = 48;
  1878. pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  1879. while (pos && ttl--) {
  1880. u8 flags;
  1881. if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
  1882. &flags) == 0) {
  1883. dev_info(&dev->dev, "Disabling HT MSI Mapping\n");
  1884. pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
  1885. flags & ~HT_MSI_FLAGS_ENABLE);
  1886. }
  1887. pos = pci_find_next_ht_capability(dev, pos,
  1888. HT_CAPTYPE_MSI_MAPPING);
  1889. }
  1890. }
  1891. static int __devinit ht_check_msi_mapping(struct pci_dev *dev)
  1892. {
  1893. int pos, ttl = 48;
  1894. int found = 0;
  1895. /* check if there is HT MSI cap or enabled on this device */
  1896. pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  1897. while (pos && ttl--) {
  1898. u8 flags;
  1899. if (found < 1)
  1900. found = 1;
  1901. if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
  1902. &flags) == 0) {
  1903. if (flags & HT_MSI_FLAGS_ENABLE) {
  1904. if (found < 2) {
  1905. found = 2;
  1906. break;
  1907. }
  1908. }
  1909. }
  1910. pos = pci_find_next_ht_capability(dev, pos,
  1911. HT_CAPTYPE_MSI_MAPPING);
  1912. }
  1913. return found;
  1914. }
  1915. static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
  1916. {
  1917. struct pci_dev *host_bridge;
  1918. int pos;
  1919. int found;
  1920. /* Enabling HT MSI mapping on this device breaks MCP51 */
  1921. if (dev->device == 0x270)
  1922. return;
  1923. /* check if there is HT MSI cap or enabled on this device */
  1924. found = ht_check_msi_mapping(dev);
  1925. /* no HT MSI CAP */
  1926. if (found == 0)
  1927. return;
  1928. /*
  1929. * HT MSI mapping should be disabled on devices that are below
  1930. * a non-Hypertransport host bridge. Locate the host bridge...
  1931. */
  1932. host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
  1933. if (host_bridge == NULL) {
  1934. dev_warn(&dev->dev,
  1935. "nv_msi_ht_cap_quirk didn't locate host bridge\n");
  1936. return;
  1937. }
  1938. pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
  1939. if (pos != 0) {
  1940. /* Host bridge is to HT */
  1941. if (found == 1) {
  1942. /* it is not enabled, try to enable it */
  1943. nv_ht_enable_msi_mapping(dev);
  1944. }
  1945. return;
  1946. }
  1947. /* HT MSI is not enabled */
  1948. if (found == 1)
  1949. return;
  1950. /* Host bridge is not to HT, disable HT MSI mapping on this device */
  1951. ht_disable_msi_mapping(dev);
  1952. }
  1953. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk);
  1954. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk);
  1955. static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
  1956. {
  1957. dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
  1958. }
  1959. static void __devinit quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
  1960. {
  1961. struct pci_dev *p;
  1962. /* SB700 MSI issue will be fixed at HW level from revision A21,
  1963. * we need check PCI REVISION ID of SMBus controller to get SB700
  1964. * revision.
  1965. */
  1966. p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
  1967. NULL);
  1968. if (!p)
  1969. return;
  1970. if ((p->revision < 0x3B) && (p->revision >= 0x30))
  1971. dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
  1972. pci_dev_put(p);
  1973. }
  1974. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1975. PCI_DEVICE_ID_TIGON3_5780,
  1976. quirk_msi_intx_disable_bug);
  1977. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1978. PCI_DEVICE_ID_TIGON3_5780S,
  1979. quirk_msi_intx_disable_bug);
  1980. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1981. PCI_DEVICE_ID_TIGON3_5714,
  1982. quirk_msi_intx_disable_bug);
  1983. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1984. PCI_DEVICE_ID_TIGON3_5714S,
  1985. quirk_msi_intx_disable_bug);
  1986. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1987. PCI_DEVICE_ID_TIGON3_5715,
  1988. quirk_msi_intx_disable_bug);
  1989. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1990. PCI_DEVICE_ID_TIGON3_5715S,
  1991. quirk_msi_intx_disable_bug);
  1992. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
  1993. quirk_msi_intx_disable_ati_bug);
  1994. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
  1995. quirk_msi_intx_disable_ati_bug);
  1996. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
  1997. quirk_msi_intx_disable_ati_bug);
  1998. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
  1999. quirk_msi_intx_disable_ati_bug);
  2000. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
  2001. quirk_msi_intx_disable_ati_bug);
  2002. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
  2003. quirk_msi_intx_disable_bug);
  2004. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
  2005. quirk_msi_intx_disable_bug);
  2006. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
  2007. quirk_msi_intx_disable_bug);
  2008. #endif /* CONFIG_PCI_MSI */
  2009. static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
  2010. struct pci_fixup *end)
  2011. {
  2012. while (f < end) {
  2013. if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
  2014. (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
  2015. dev_dbg(&dev->dev, "calling %pF\n", f->hook);
  2016. f->hook(dev);
  2017. }
  2018. f++;
  2019. }
  2020. }
  2021. extern struct pci_fixup __start_pci_fixups_early[];
  2022. extern struct pci_fixup __end_pci_fixups_early[];
  2023. extern struct pci_fixup __start_pci_fixups_header[];
  2024. extern struct pci_fixup __end_pci_fixups_header[];
  2025. extern struct pci_fixup __start_pci_fixups_final[];
  2026. extern struct pci_fixup __end_pci_fixups_final[];
  2027. extern struct pci_fixup __start_pci_fixups_enable[];
  2028. extern struct pci_fixup __end_pci_fixups_enable[];
  2029. extern struct pci_fixup __start_pci_fixups_resume[];
  2030. extern struct pci_fixup __end_pci_fixups_resume[];
  2031. extern struct pci_fixup __start_pci_fixups_resume_early[];
  2032. extern struct pci_fixup __end_pci_fixups_resume_early[];
  2033. extern struct pci_fixup __start_pci_fixups_suspend[];
  2034. extern struct pci_fixup __end_pci_fixups_suspend[];
  2035. void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
  2036. {
  2037. struct pci_fixup *start, *end;
  2038. switch(pass) {
  2039. case pci_fixup_early:
  2040. start = __start_pci_fixups_early;
  2041. end = __end_pci_fixups_early;
  2042. break;
  2043. case pci_fixup_header:
  2044. start = __start_pci_fixups_header;
  2045. end = __end_pci_fixups_header;
  2046. break;
  2047. case pci_fixup_final:
  2048. start = __start_pci_fixups_final;
  2049. end = __end_pci_fixups_final;
  2050. break;
  2051. case pci_fixup_enable:
  2052. start = __start_pci_fixups_enable;
  2053. end = __end_pci_fixups_enable;
  2054. break;
  2055. case pci_fixup_resume:
  2056. start = __start_pci_fixups_resume;
  2057. end = __end_pci_fixups_resume;
  2058. break;
  2059. case pci_fixup_resume_early:
  2060. start = __start_pci_fixups_resume_early;
  2061. end = __end_pci_fixups_resume_early;
  2062. break;
  2063. case pci_fixup_suspend:
  2064. start = __start_pci_fixups_suspend;
  2065. end = __end_pci_fixups_suspend;
  2066. break;
  2067. default:
  2068. /* stupid compiler warning, you would think with an enum... */
  2069. return;
  2070. }
  2071. pci_do_fixups(dev, start, end);
  2072. }
  2073. #else
  2074. void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) {}
  2075. #endif
  2076. EXPORT_SYMBOL(pci_fixup_device);