quirks.c 67 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 "pci.h"
  25. /* The Mellanox Tavor device gives false positive parity errors
  26. * Mark this device with a broken_parity_status, to allow
  27. * PCI scanning code to "skip" this now blacklisted device.
  28. */
  29. static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
  30. {
  31. dev->broken_parity_status = 1; /* This device gives false positives */
  32. }
  33. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
  34. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
  35. /* Deal with broken BIOS'es that neglect to enable passive release,
  36. which can cause problems in combination with the 82441FX/PPro MTRRs */
  37. static void quirk_passive_release(struct pci_dev *dev)
  38. {
  39. struct pci_dev *d = NULL;
  40. unsigned char dlc;
  41. /* We have to make sure a particular bit is set in the PIIX3
  42. ISA bridge, so we have to go out and find it. */
  43. while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
  44. pci_read_config_byte(d, 0x82, &dlc);
  45. if (!(dlc & 1<<1)) {
  46. dev_err(&d->dev, "PIIX3: Enabling Passive Release\n");
  47. dlc |= 1<<1;
  48. pci_write_config_byte(d, 0x82, dlc);
  49. }
  50. }
  51. }
  52. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
  53. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
  54. /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
  55. but VIA don't answer queries. If you happen to have good contacts at VIA
  56. ask them for me please -- Alan
  57. This appears to be BIOS not version dependent. So presumably there is a
  58. chipset level fix */
  59. int isa_dma_bridge_buggy;
  60. EXPORT_SYMBOL(isa_dma_bridge_buggy);
  61. static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
  62. {
  63. if (!isa_dma_bridge_buggy) {
  64. isa_dma_bridge_buggy=1;
  65. dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n");
  66. }
  67. }
  68. /*
  69. * Its not totally clear which chipsets are the problematic ones
  70. * We know 82C586 and 82C596 variants are affected.
  71. */
  72. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs);
  73. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs);
  74. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs);
  75. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs);
  76. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs);
  77. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs);
  78. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs);
  79. int pci_pci_problems;
  80. EXPORT_SYMBOL(pci_pci_problems);
  81. /*
  82. * Chipsets where PCI->PCI transfers vanish or hang
  83. */
  84. static void __devinit quirk_nopcipci(struct pci_dev *dev)
  85. {
  86. if ((pci_pci_problems & PCIPCI_FAIL)==0) {
  87. dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n");
  88. pci_pci_problems |= PCIPCI_FAIL;
  89. }
  90. }
  91. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci);
  92. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci);
  93. static void __devinit quirk_nopciamd(struct pci_dev *dev)
  94. {
  95. u8 rev;
  96. pci_read_config_byte(dev, 0x08, &rev);
  97. if (rev == 0x13) {
  98. /* Erratum 24 */
  99. dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n");
  100. pci_pci_problems |= PCIAGP_FAIL;
  101. }
  102. }
  103. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
  104. /*
  105. * Triton requires workarounds to be used by the drivers
  106. */
  107. static void __devinit quirk_triton(struct pci_dev *dev)
  108. {
  109. if ((pci_pci_problems&PCIPCI_TRITON)==0) {
  110. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  111. pci_pci_problems |= PCIPCI_TRITON;
  112. }
  113. }
  114. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton);
  115. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton);
  116. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton);
  117. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton);
  118. /*
  119. * VIA Apollo KT133 needs PCI latency patch
  120. * Made according to a windows driver based patch by George E. Breese
  121. * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
  122. * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
  123. * the info on which Mr Breese based his work.
  124. *
  125. * Updated based on further information from the site and also on
  126. * information provided by VIA
  127. */
  128. static void quirk_vialatency(struct pci_dev *dev)
  129. {
  130. struct pci_dev *p;
  131. u8 busarb;
  132. /* Ok we have a potential problem chipset here. Now see if we have
  133. a buggy southbridge */
  134. p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
  135. if (p!=NULL) {
  136. /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
  137. /* Check for buggy part revisions */
  138. if (p->revision < 0x40 || p->revision > 0x42)
  139. goto exit;
  140. } else {
  141. p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
  142. if (p==NULL) /* No problem parts */
  143. goto exit;
  144. /* Check for buggy part revisions */
  145. if (p->revision < 0x10 || p->revision > 0x12)
  146. goto exit;
  147. }
  148. /*
  149. * Ok we have the problem. Now set the PCI master grant to
  150. * occur every master grant. The apparent bug is that under high
  151. * PCI load (quite common in Linux of course) you can get data
  152. * loss when the CPU is held off the bus for 3 bus master requests
  153. * This happens to include the IDE controllers....
  154. *
  155. * VIA only apply this fix when an SB Live! is present but under
  156. * both Linux and Windows this isnt enough, and we have seen
  157. * corruption without SB Live! but with things like 3 UDMA IDE
  158. * controllers. So we ignore that bit of the VIA recommendation..
  159. */
  160. pci_read_config_byte(dev, 0x76, &busarb);
  161. /* Set bit 4 and bi 5 of byte 76 to 0x01
  162. "Master priority rotation on every PCI master grant */
  163. busarb &= ~(1<<5);
  164. busarb |= (1<<4);
  165. pci_write_config_byte(dev, 0x76, busarb);
  166. dev_info(&dev->dev, "Applying VIA southbridge workaround\n");
  167. exit:
  168. pci_dev_put(p);
  169. }
  170. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
  171. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
  172. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
  173. /* Must restore this on a resume from RAM */
  174. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
  175. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
  176. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
  177. /*
  178. * VIA Apollo VP3 needs ETBF on BT848/878
  179. */
  180. static void __devinit quirk_viaetbf(struct pci_dev *dev)
  181. {
  182. if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
  183. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  184. pci_pci_problems |= PCIPCI_VIAETBF;
  185. }
  186. }
  187. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf);
  188. static void __devinit quirk_vsfx(struct pci_dev *dev)
  189. {
  190. if ((pci_pci_problems&PCIPCI_VSFX)==0) {
  191. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  192. pci_pci_problems |= PCIPCI_VSFX;
  193. }
  194. }
  195. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx);
  196. /*
  197. * Ali Magik requires workarounds to be used by the drivers
  198. * that DMA to AGP space. Latency must be set to 0xA and triton
  199. * workaround applied too
  200. * [Info kindly provided by ALi]
  201. */
  202. static void __init quirk_alimagik(struct pci_dev *dev)
  203. {
  204. if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
  205. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  206. pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
  207. }
  208. }
  209. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik);
  210. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik);
  211. /*
  212. * Natoma has some interesting boundary conditions with Zoran stuff
  213. * at least
  214. */
  215. static void __devinit quirk_natoma(struct pci_dev *dev)
  216. {
  217. if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
  218. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  219. pci_pci_problems |= PCIPCI_NATOMA;
  220. }
  221. }
  222. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma);
  223. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma);
  224. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma);
  225. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma);
  226. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma);
  227. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma);
  228. /*
  229. * This chip can cause PCI parity errors if config register 0xA0 is read
  230. * while DMAs are occurring.
  231. */
  232. static void __devinit quirk_citrine(struct pci_dev *dev)
  233. {
  234. dev->cfg_size = 0xA0;
  235. }
  236. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine);
  237. /*
  238. * S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
  239. * If it's needed, re-allocate the region.
  240. */
  241. static void __devinit quirk_s3_64M(struct pci_dev *dev)
  242. {
  243. struct resource *r = &dev->resource[0];
  244. if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
  245. r->start = 0;
  246. r->end = 0x3ffffff;
  247. }
  248. }
  249. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M);
  250. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M);
  251. static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
  252. unsigned size, int nr, const char *name)
  253. {
  254. region &= ~(size-1);
  255. if (region) {
  256. struct pci_bus_region bus_region;
  257. struct resource *res = dev->resource + nr;
  258. res->name = pci_name(dev);
  259. res->start = region;
  260. res->end = region + size - 1;
  261. res->flags = IORESOURCE_IO;
  262. /* Convert from PCI bus to resource space. */
  263. bus_region.start = res->start;
  264. bus_region.end = res->end;
  265. pcibios_bus_to_resource(dev, res, &bus_region);
  266. pci_claim_resource(dev, nr);
  267. dev_info(&dev->dev, "quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
  268. }
  269. }
  270. /*
  271. * ATI Northbridge setups MCE the processor if you even
  272. * read somewhere between 0x3b0->0x3bb or read 0x3d3
  273. */
  274. static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
  275. {
  276. dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
  277. /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
  278. request_region(0x3b0, 0x0C, "RadeonIGP");
  279. request_region(0x3d3, 0x01, "RadeonIGP");
  280. }
  281. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce);
  282. /*
  283. * Let's make the southbridge information explicit instead
  284. * of having to worry about people probing the ACPI areas,
  285. * for example.. (Yes, it happens, and if you read the wrong
  286. * ACPI register it will put the machine to sleep with no
  287. * way of waking it up again. Bummer).
  288. *
  289. * ALI M7101: Two IO regions pointed to by words at
  290. * 0xE0 (64 bytes of ACPI registers)
  291. * 0xE2 (32 bytes of SMB registers)
  292. */
  293. static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
  294. {
  295. u16 region;
  296. pci_read_config_word(dev, 0xE0, &region);
  297. quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
  298. pci_read_config_word(dev, 0xE2, &region);
  299. quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
  300. }
  301. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi);
  302. static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
  303. {
  304. u32 devres;
  305. u32 mask, size, base;
  306. pci_read_config_dword(dev, port, &devres);
  307. if ((devres & enable) != enable)
  308. return;
  309. mask = (devres >> 16) & 15;
  310. base = devres & 0xffff;
  311. size = 16;
  312. for (;;) {
  313. unsigned bit = size >> 1;
  314. if ((bit & mask) == bit)
  315. break;
  316. size = bit;
  317. }
  318. /*
  319. * For now we only print it out. Eventually we'll want to
  320. * reserve it (at least if it's in the 0x1000+ range), but
  321. * let's get enough confirmation reports first.
  322. */
  323. base &= -size;
  324. dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
  325. }
  326. static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
  327. {
  328. u32 devres;
  329. u32 mask, size, base;
  330. pci_read_config_dword(dev, port, &devres);
  331. if ((devres & enable) != enable)
  332. return;
  333. base = devres & 0xffff0000;
  334. mask = (devres & 0x3f) << 16;
  335. size = 128 << 16;
  336. for (;;) {
  337. unsigned bit = size >> 1;
  338. if ((bit & mask) == bit)
  339. break;
  340. size = bit;
  341. }
  342. /*
  343. * For now we only print it out. Eventually we'll want to
  344. * reserve it, but let's get enough confirmation reports first.
  345. */
  346. base &= -size;
  347. dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
  348. }
  349. /*
  350. * PIIX4 ACPI: Two IO regions pointed to by longwords at
  351. * 0x40 (64 bytes of ACPI registers)
  352. * 0x90 (16 bytes of SMB registers)
  353. * and a few strange programmable PIIX4 device resources.
  354. */
  355. static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
  356. {
  357. u32 region, res_a;
  358. pci_read_config_dword(dev, 0x40, &region);
  359. quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
  360. pci_read_config_dword(dev, 0x90, &region);
  361. quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
  362. /* Device resource A has enables for some of the other ones */
  363. pci_read_config_dword(dev, 0x5c, &res_a);
  364. piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
  365. piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
  366. /* Device resource D is just bitfields for static resources */
  367. /* Device 12 enabled? */
  368. if (res_a & (1 << 29)) {
  369. piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
  370. piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
  371. }
  372. /* Device 13 enabled? */
  373. if (res_a & (1 << 30)) {
  374. piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
  375. piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
  376. }
  377. piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
  378. piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
  379. }
  380. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi);
  381. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi);
  382. /*
  383. * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
  384. * 0x40 (128 bytes of ACPI, GPIO & TCO registers)
  385. * 0x58 (64 bytes of GPIO I/O space)
  386. */
  387. static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
  388. {
  389. u32 region;
  390. pci_read_config_dword(dev, 0x40, &region);
  391. quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO");
  392. pci_read_config_dword(dev, 0x58, &region);
  393. quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO");
  394. }
  395. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi);
  396. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi);
  397. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi);
  398. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi);
  399. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi);
  400. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi);
  401. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi);
  402. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi);
  403. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
  404. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
  405. static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev)
  406. {
  407. u32 region;
  408. pci_read_config_dword(dev, 0x40, &region);
  409. quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH6 ACPI/GPIO/TCO");
  410. pci_read_config_dword(dev, 0x48, &region);
  411. quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO");
  412. }
  413. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi);
  414. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi);
  415. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich6_lpc_acpi);
  416. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich6_lpc_acpi);
  417. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich6_lpc_acpi);
  418. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich6_lpc_acpi);
  419. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich6_lpc_acpi);
  420. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich6_lpc_acpi);
  421. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich6_lpc_acpi);
  422. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich6_lpc_acpi);
  423. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich6_lpc_acpi);
  424. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich6_lpc_acpi);
  425. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich6_lpc_acpi);
  426. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich6_lpc_acpi);
  427. /*
  428. * VIA ACPI: One IO region pointed to by longword at
  429. * 0x48 or 0x20 (256 bytes of ACPI registers)
  430. */
  431. static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
  432. {
  433. u32 region;
  434. if (dev->revision & 0x10) {
  435. pci_read_config_dword(dev, 0x48, &region);
  436. region &= PCI_BASE_ADDRESS_IO_MASK;
  437. quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
  438. }
  439. }
  440. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi);
  441. /*
  442. * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
  443. * 0x48 (256 bytes of ACPI registers)
  444. * 0x70 (128 bytes of hardware monitoring register)
  445. * 0x90 (16 bytes of SMB registers)
  446. */
  447. static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
  448. {
  449. u16 hm;
  450. u32 smb;
  451. quirk_vt82c586_acpi(dev);
  452. pci_read_config_word(dev, 0x70, &hm);
  453. hm &= PCI_BASE_ADDRESS_IO_MASK;
  454. quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
  455. pci_read_config_dword(dev, 0x90, &smb);
  456. smb &= PCI_BASE_ADDRESS_IO_MASK;
  457. quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
  458. }
  459. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi);
  460. /*
  461. * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
  462. * 0x88 (128 bytes of power management registers)
  463. * 0xd0 (16 bytes of SMB registers)
  464. */
  465. static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
  466. {
  467. u16 pm, smb;
  468. pci_read_config_word(dev, 0x88, &pm);
  469. pm &= PCI_BASE_ADDRESS_IO_MASK;
  470. quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
  471. pci_read_config_word(dev, 0xd0, &smb);
  472. smb &= PCI_BASE_ADDRESS_IO_MASK;
  473. quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
  474. }
  475. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
  476. #ifdef CONFIG_X86_IO_APIC
  477. #include <asm/io_apic.h>
  478. /*
  479. * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
  480. * devices to the external APIC.
  481. *
  482. * TODO: When we have device-specific interrupt routers,
  483. * this code will go away from quirks.
  484. */
  485. static void quirk_via_ioapic(struct pci_dev *dev)
  486. {
  487. u8 tmp;
  488. if (nr_ioapics < 1)
  489. tmp = 0; /* nothing routed to external APIC */
  490. else
  491. tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
  492. dev_info(&dev->dev, "%sbling VIA external APIC routing\n",
  493. tmp == 0 ? "Disa" : "Ena");
  494. /* Offset 0x58: External APIC IRQ output control */
  495. pci_write_config_byte (dev, 0x58, tmp);
  496. }
  497. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
  498. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
  499. /*
  500. * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
  501. * This leads to doubled level interrupt rates.
  502. * Set this bit to get rid of cycle wastage.
  503. * Otherwise uncritical.
  504. */
  505. static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
  506. {
  507. u8 misc_control2;
  508. #define BYPASS_APIC_DEASSERT 8
  509. pci_read_config_byte(dev, 0x5B, &misc_control2);
  510. if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
  511. dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
  512. pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
  513. }
  514. }
  515. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
  516. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
  517. /*
  518. * The AMD io apic can hang the box when an apic irq is masked.
  519. * We check all revs >= B0 (yet not in the pre production!) as the bug
  520. * is currently marked NoFix
  521. *
  522. * We have multiple reports of hangs with this chipset that went away with
  523. * noapic specified. For the moment we assume it's the erratum. We may be wrong
  524. * of course. However the advice is demonstrably good even if so..
  525. */
  526. static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
  527. {
  528. if (dev->revision >= 0x02) {
  529. dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
  530. dev_warn(&dev->dev, " : booting with the \"noapic\" option\n");
  531. }
  532. }
  533. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
  534. static void __init quirk_ioapic_rmw(struct pci_dev *dev)
  535. {
  536. if (dev->devfn == 0 && dev->bus->number == 0)
  537. sis_apic_bug = 1;
  538. }
  539. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw);
  540. #define AMD8131_revA0 0x01
  541. #define AMD8131_revB0 0x11
  542. #define AMD8131_MISC 0x40
  543. #define AMD8131_NIOAMODE_BIT 0
  544. static void quirk_amd_8131_ioapic(struct pci_dev *dev)
  545. {
  546. unsigned char tmp;
  547. if (nr_ioapics == 0)
  548. return;
  549. if (dev->revision == AMD8131_revA0 || dev->revision == AMD8131_revB0) {
  550. dev_info(&dev->dev, "Fixing up AMD8131 IOAPIC mode\n");
  551. pci_read_config_byte( dev, AMD8131_MISC, &tmp);
  552. tmp &= ~(1 << AMD8131_NIOAMODE_BIT);
  553. pci_write_config_byte( dev, AMD8131_MISC, tmp);
  554. }
  555. }
  556. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
  557. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
  558. #endif /* CONFIG_X86_IO_APIC */
  559. /*
  560. * Some settings of MMRBC can lead to data corruption so block changes.
  561. * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
  562. */
  563. static void __init quirk_amd_8131_mmrbc(struct pci_dev *dev)
  564. {
  565. if (dev->subordinate && dev->revision <= 0x12) {
  566. dev_info(&dev->dev, "AMD8131 rev %x detected; "
  567. "disabling PCI-X MMRBC\n", dev->revision);
  568. dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
  569. }
  570. }
  571. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
  572. /*
  573. * FIXME: it is questionable that quirk_via_acpi
  574. * is needed. It shows up as an ISA bridge, and does not
  575. * support the PCI_INTERRUPT_LINE register at all. Therefore
  576. * it seems like setting the pci_dev's 'irq' to the
  577. * value of the ACPI SCI interrupt is only done for convenience.
  578. * -jgarzik
  579. */
  580. static void __devinit quirk_via_acpi(struct pci_dev *d)
  581. {
  582. /*
  583. * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
  584. */
  585. u8 irq;
  586. pci_read_config_byte(d, 0x42, &irq);
  587. irq &= 0xf;
  588. if (irq && (irq != 2))
  589. d->irq = irq;
  590. }
  591. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi);
  592. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi);
  593. /*
  594. * VIA bridges which have VLink
  595. */
  596. static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
  597. static void quirk_via_bridge(struct pci_dev *dev)
  598. {
  599. /* See what bridge we have and find the device ranges */
  600. switch (dev->device) {
  601. case PCI_DEVICE_ID_VIA_82C686:
  602. /* The VT82C686 is special, it attaches to PCI and can have
  603. any device number. All its subdevices are functions of
  604. that single device. */
  605. via_vlink_dev_lo = PCI_SLOT(dev->devfn);
  606. via_vlink_dev_hi = PCI_SLOT(dev->devfn);
  607. break;
  608. case PCI_DEVICE_ID_VIA_8237:
  609. case PCI_DEVICE_ID_VIA_8237A:
  610. via_vlink_dev_lo = 15;
  611. break;
  612. case PCI_DEVICE_ID_VIA_8235:
  613. via_vlink_dev_lo = 16;
  614. break;
  615. case PCI_DEVICE_ID_VIA_8231:
  616. case PCI_DEVICE_ID_VIA_8233_0:
  617. case PCI_DEVICE_ID_VIA_8233A:
  618. case PCI_DEVICE_ID_VIA_8233C_0:
  619. via_vlink_dev_lo = 17;
  620. break;
  621. }
  622. }
  623. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
  624. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
  625. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
  626. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
  627. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
  628. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
  629. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
  630. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
  631. /**
  632. * quirk_via_vlink - VIA VLink IRQ number update
  633. * @dev: PCI device
  634. *
  635. * If the device we are dealing with is on a PIC IRQ we need to
  636. * ensure that the IRQ line register which usually is not relevant
  637. * for PCI cards, is actually written so that interrupts get sent
  638. * to the right place.
  639. * We only do this on systems where a VIA south bridge was detected,
  640. * and only for VIA devices on the motherboard (see quirk_via_bridge
  641. * above).
  642. */
  643. static void quirk_via_vlink(struct pci_dev *dev)
  644. {
  645. u8 irq, new_irq;
  646. /* Check if we have VLink at all */
  647. if (via_vlink_dev_lo == -1)
  648. return;
  649. new_irq = dev->irq;
  650. /* Don't quirk interrupts outside the legacy IRQ range */
  651. if (!new_irq || new_irq > 15)
  652. return;
  653. /* Internal device ? */
  654. if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
  655. PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
  656. return;
  657. /* This is an internal VLink device on a PIC interrupt. The BIOS
  658. ought to have set this but may not have, so we redo it */
  659. pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
  660. if (new_irq != irq) {
  661. dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n",
  662. irq, new_irq);
  663. udelay(15); /* unknown if delay really needed */
  664. pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
  665. }
  666. }
  667. DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
  668. /*
  669. * VIA VT82C598 has its device ID settable and many BIOSes
  670. * set it to the ID of VT82C597 for backward compatibility.
  671. * We need to switch it off to be able to recognize the real
  672. * type of the chip.
  673. */
  674. static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
  675. {
  676. pci_write_config_byte(dev, 0xfc, 0);
  677. pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
  678. }
  679. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id);
  680. /*
  681. * CardBus controllers have a legacy base address that enables them
  682. * to respond as i82365 pcmcia controllers. We don't want them to
  683. * do this even if the Linux CardBus driver is not loaded, because
  684. * the Linux i82365 driver does not (and should not) handle CardBus.
  685. */
  686. static void quirk_cardbus_legacy(struct pci_dev *dev)
  687. {
  688. if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
  689. return;
  690. pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
  691. }
  692. DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
  693. DECLARE_PCI_FIXUP_RESUME(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
  694. /*
  695. * Following the PCI ordering rules is optional on the AMD762. I'm not
  696. * sure what the designers were smoking but let's not inhale...
  697. *
  698. * To be fair to AMD, it follows the spec by default, its BIOS people
  699. * who turn it off!
  700. */
  701. static void quirk_amd_ordering(struct pci_dev *dev)
  702. {
  703. u32 pcic;
  704. pci_read_config_dword(dev, 0x4C, &pcic);
  705. if ((pcic&6)!=6) {
  706. pcic |= 6;
  707. dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n");
  708. pci_write_config_dword(dev, 0x4C, pcic);
  709. pci_read_config_dword(dev, 0x84, &pcic);
  710. pcic |= (1<<23); /* Required in this mode */
  711. pci_write_config_dword(dev, 0x84, pcic);
  712. }
  713. }
  714. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
  715. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
  716. /*
  717. * DreamWorks provided workaround for Dunord I-3000 problem
  718. *
  719. * This card decodes and responds to addresses not apparently
  720. * assigned to it. We force a larger allocation to ensure that
  721. * nothing gets put too close to it.
  722. */
  723. static void __devinit quirk_dunord ( struct pci_dev * dev )
  724. {
  725. struct resource *r = &dev->resource [1];
  726. r->start = 0;
  727. r->end = 0xffffff;
  728. }
  729. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord);
  730. /*
  731. * i82380FB mobile docking controller: its PCI-to-PCI bridge
  732. * is subtractive decoding (transparent), and does indicate this
  733. * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
  734. * instead of 0x01.
  735. */
  736. static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
  737. {
  738. dev->transparent = 1;
  739. }
  740. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge);
  741. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge);
  742. /*
  743. * Common misconfiguration of the MediaGX/Geode PCI master that will
  744. * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
  745. * datasheets found at http://www.national.com/ds/GX for info on what
  746. * these bits do. <christer@weinigel.se>
  747. */
  748. static void quirk_mediagx_master(struct pci_dev *dev)
  749. {
  750. u8 reg;
  751. pci_read_config_byte(dev, 0x41, &reg);
  752. if (reg & 2) {
  753. reg &= ~2;
  754. dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
  755. pci_write_config_byte(dev, 0x41, reg);
  756. }
  757. }
  758. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
  759. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
  760. /*
  761. * Ensure C0 rev restreaming is off. This is normally done by
  762. * the BIOS but in the odd case it is not the results are corruption
  763. * hence the presence of a Linux check
  764. */
  765. static void quirk_disable_pxb(struct pci_dev *pdev)
  766. {
  767. u16 config;
  768. if (pdev->revision != 0x04) /* Only C0 requires this */
  769. return;
  770. pci_read_config_word(pdev, 0x40, &config);
  771. if (config & (1<<6)) {
  772. config &= ~(1<<6);
  773. pci_write_config_word(pdev, 0x40, config);
  774. dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n");
  775. }
  776. }
  777. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
  778. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
  779. static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
  780. {
  781. /* set sb600/sb700/sb800 sata to ahci mode */
  782. u8 tmp;
  783. pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
  784. if (tmp == 0x01) {
  785. pci_read_config_byte(pdev, 0x40, &tmp);
  786. pci_write_config_byte(pdev, 0x40, tmp|1);
  787. pci_write_config_byte(pdev, 0x9, 1);
  788. pci_write_config_byte(pdev, 0xa, 6);
  789. pci_write_config_byte(pdev, 0x40, tmp);
  790. pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
  791. dev_info(&pdev->dev, "set SATA to AHCI mode\n");
  792. }
  793. }
  794. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
  795. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
  796. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
  797. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
  798. /*
  799. * Serverworks CSB5 IDE does not fully support native mode
  800. */
  801. static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
  802. {
  803. u8 prog;
  804. pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
  805. if (prog & 5) {
  806. prog &= ~5;
  807. pdev->class &= ~5;
  808. pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
  809. /* PCI layer will sort out resources */
  810. }
  811. }
  812. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
  813. /*
  814. * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
  815. */
  816. static void __init quirk_ide_samemode(struct pci_dev *pdev)
  817. {
  818. u8 prog;
  819. pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
  820. if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
  821. dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n");
  822. prog &= ~5;
  823. pdev->class &= ~5;
  824. pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
  825. }
  826. }
  827. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
  828. /* This was originally an Alpha specific thing, but it really fits here.
  829. * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
  830. */
  831. static void __init quirk_eisa_bridge(struct pci_dev *dev)
  832. {
  833. dev->class = PCI_CLASS_BRIDGE_EISA << 8;
  834. }
  835. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge);
  836. /*
  837. * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
  838. * is not activated. The myth is that Asus said that they do not want the
  839. * users to be irritated by just another PCI Device in the Win98 device
  840. * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
  841. * package 2.7.0 for details)
  842. *
  843. * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
  844. * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
  845. * becomes necessary to do this tweak in two steps -- the chosen trigger
  846. * is either the Host bridge (preferred) or on-board VGA controller.
  847. *
  848. * Note that we used to unhide the SMBus that way on Toshiba laptops
  849. * (Satellite A40 and Tecra M2) but then found that the thermal management
  850. * was done by SMM code, which could cause unsynchronized concurrent
  851. * accesses to the SMBus registers, with potentially bad effects. Thus you
  852. * should be very careful when adding new entries: if SMM is accessing the
  853. * Intel SMBus, this is a very good reason to leave it hidden.
  854. */
  855. static int asus_hides_smbus;
  856. static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
  857. {
  858. if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
  859. if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
  860. switch(dev->subsystem_device) {
  861. case 0x8025: /* P4B-LX */
  862. case 0x8070: /* P4B */
  863. case 0x8088: /* P4B533 */
  864. case 0x1626: /* L3C notebook */
  865. asus_hides_smbus = 1;
  866. }
  867. else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
  868. switch(dev->subsystem_device) {
  869. case 0x80b1: /* P4GE-V */
  870. case 0x80b2: /* P4PE */
  871. case 0x8093: /* P4B533-V */
  872. asus_hides_smbus = 1;
  873. }
  874. else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
  875. switch(dev->subsystem_device) {
  876. case 0x8030: /* P4T533 */
  877. asus_hides_smbus = 1;
  878. }
  879. else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
  880. switch (dev->subsystem_device) {
  881. case 0x8070: /* P4G8X Deluxe */
  882. asus_hides_smbus = 1;
  883. }
  884. else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
  885. switch (dev->subsystem_device) {
  886. case 0x80c9: /* PU-DLS */
  887. asus_hides_smbus = 1;
  888. }
  889. else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
  890. switch (dev->subsystem_device) {
  891. case 0x1751: /* M2N notebook */
  892. case 0x1821: /* M5N notebook */
  893. asus_hides_smbus = 1;
  894. }
  895. else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
  896. switch (dev->subsystem_device) {
  897. case 0x184b: /* W1N notebook */
  898. case 0x186a: /* M6Ne notebook */
  899. asus_hides_smbus = 1;
  900. }
  901. else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
  902. switch (dev->subsystem_device) {
  903. case 0x80f2: /* P4P800-X */
  904. asus_hides_smbus = 1;
  905. }
  906. else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
  907. switch (dev->subsystem_device) {
  908. case 0x1882: /* M6V notebook */
  909. case 0x1977: /* A6VA notebook */
  910. asus_hides_smbus = 1;
  911. }
  912. } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
  913. if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
  914. switch(dev->subsystem_device) {
  915. case 0x088C: /* HP Compaq nc8000 */
  916. case 0x0890: /* HP Compaq nc6000 */
  917. asus_hides_smbus = 1;
  918. }
  919. else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
  920. switch (dev->subsystem_device) {
  921. case 0x12bc: /* HP D330L */
  922. case 0x12bd: /* HP D530 */
  923. asus_hides_smbus = 1;
  924. }
  925. else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
  926. switch (dev->subsystem_device) {
  927. case 0x12bf: /* HP xw4100 */
  928. asus_hides_smbus = 1;
  929. }
  930. else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
  931. switch (dev->subsystem_device) {
  932. case 0x099c: /* HP Compaq nx6110 */
  933. asus_hides_smbus = 1;
  934. }
  935. } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
  936. if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
  937. switch(dev->subsystem_device) {
  938. case 0xC00C: /* Samsung P35 notebook */
  939. asus_hides_smbus = 1;
  940. }
  941. } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
  942. if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
  943. switch(dev->subsystem_device) {
  944. case 0x0058: /* Compaq Evo N620c */
  945. asus_hides_smbus = 1;
  946. }
  947. else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
  948. switch(dev->subsystem_device) {
  949. case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
  950. /* Motherboard doesn't have Host bridge
  951. * subvendor/subdevice IDs, therefore checking
  952. * its on-board VGA controller */
  953. asus_hides_smbus = 1;
  954. }
  955. }
  956. }
  957. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge);
  958. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge);
  959. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge);
  960. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge);
  961. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge);
  962. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge);
  963. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge);
  964. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge);
  965. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge);
  966. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
  967. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge);
  968. static void asus_hides_smbus_lpc(struct pci_dev *dev)
  969. {
  970. u16 val;
  971. if (likely(!asus_hides_smbus))
  972. return;
  973. pci_read_config_word(dev, 0xF2, &val);
  974. if (val & 0x8) {
  975. pci_write_config_word(dev, 0xF2, val & (~0x8));
  976. pci_read_config_word(dev, 0xF2, &val);
  977. if (val & 0x8)
  978. dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
  979. else
  980. dev_info(&dev->dev, "Enabled i801 SMBus device\n");
  981. }
  982. }
  983. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
  984. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
  985. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
  986. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
  987. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
  988. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
  989. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
  990. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
  991. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
  992. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
  993. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
  994. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
  995. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
  996. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
  997. static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
  998. {
  999. u32 val, rcba;
  1000. void __iomem *base;
  1001. if (likely(!asus_hides_smbus))
  1002. return;
  1003. pci_read_config_dword(dev, 0xF0, &rcba);
  1004. base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); /* use bits 31:14, 16 kB aligned */
  1005. if (base == NULL) return;
  1006. val=readl(base + 0x3418); /* read the Function Disable register, dword mode only */
  1007. writel(val & 0xFFFFFFF7, base + 0x3418); /* enable the SMBus device */
  1008. iounmap(base);
  1009. dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n");
  1010. }
  1011. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6);
  1012. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6);
  1013. /*
  1014. * SiS 96x south bridge: BIOS typically hides SMBus device...
  1015. */
  1016. static void quirk_sis_96x_smbus(struct pci_dev *dev)
  1017. {
  1018. u8 val = 0;
  1019. pci_read_config_byte(dev, 0x77, &val);
  1020. if (val & 0x10) {
  1021. dev_info(&dev->dev, "Enabling SiS 96x SMBus\n");
  1022. pci_write_config_byte(dev, 0x77, val & ~0x10);
  1023. }
  1024. }
  1025. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
  1026. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
  1027. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
  1028. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
  1029. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
  1030. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
  1031. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
  1032. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
  1033. /*
  1034. * ... This is further complicated by the fact that some SiS96x south
  1035. * bridges pretend to be 85C503/5513 instead. In that case see if we
  1036. * spotted a compatible north bridge to make sure.
  1037. * (pci_find_device doesn't work yet)
  1038. *
  1039. * We can also enable the sis96x bit in the discovery register..
  1040. */
  1041. #define SIS_DETECT_REGISTER 0x40
  1042. static void quirk_sis_503(struct pci_dev *dev)
  1043. {
  1044. u8 reg;
  1045. u16 devid;
  1046. pci_read_config_byte(dev, SIS_DETECT_REGISTER, &reg);
  1047. pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
  1048. pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
  1049. if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
  1050. pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
  1051. return;
  1052. }
  1053. /*
  1054. * Ok, it now shows up as a 96x.. run the 96x quirk by
  1055. * hand in case it has already been processed.
  1056. * (depends on link order, which is apparently not guaranteed)
  1057. */
  1058. dev->device = devid;
  1059. quirk_sis_96x_smbus(dev);
  1060. }
  1061. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
  1062. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
  1063. /*
  1064. * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
  1065. * and MC97 modem controller are disabled when a second PCI soundcard is
  1066. * present. This patch, tweaking the VT8237 ISA bridge, enables them.
  1067. * -- bjd
  1068. */
  1069. static void asus_hides_ac97_lpc(struct pci_dev *dev)
  1070. {
  1071. u8 val;
  1072. int asus_hides_ac97 = 0;
  1073. if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
  1074. if (dev->device == PCI_DEVICE_ID_VIA_8237)
  1075. asus_hides_ac97 = 1;
  1076. }
  1077. if (!asus_hides_ac97)
  1078. return;
  1079. pci_read_config_byte(dev, 0x50, &val);
  1080. if (val & 0xc0) {
  1081. pci_write_config_byte(dev, 0x50, val & (~0xc0));
  1082. pci_read_config_byte(dev, 0x50, &val);
  1083. if (val & 0xc0)
  1084. dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
  1085. else
  1086. dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n");
  1087. }
  1088. }
  1089. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
  1090. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
  1091. #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
  1092. /*
  1093. * If we are using libata we can drive this chip properly but must
  1094. * do this early on to make the additional device appear during
  1095. * the PCI scanning.
  1096. */
  1097. static void quirk_jmicron_ata(struct pci_dev *pdev)
  1098. {
  1099. u32 conf1, conf5, class;
  1100. u8 hdr;
  1101. /* Only poke fn 0 */
  1102. if (PCI_FUNC(pdev->devfn))
  1103. return;
  1104. pci_read_config_dword(pdev, 0x40, &conf1);
  1105. pci_read_config_dword(pdev, 0x80, &conf5);
  1106. conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
  1107. conf5 &= ~(1 << 24); /* Clear bit 24 */
  1108. switch (pdev->device) {
  1109. case PCI_DEVICE_ID_JMICRON_JMB360:
  1110. /* The controller should be in single function ahci mode */
  1111. conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
  1112. break;
  1113. case PCI_DEVICE_ID_JMICRON_JMB365:
  1114. case PCI_DEVICE_ID_JMICRON_JMB366:
  1115. /* Redirect IDE second PATA port to the right spot */
  1116. conf5 |= (1 << 24);
  1117. /* Fall through */
  1118. case PCI_DEVICE_ID_JMICRON_JMB361:
  1119. case PCI_DEVICE_ID_JMICRON_JMB363:
  1120. /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
  1121. /* Set the class codes correctly and then direct IDE 0 */
  1122. conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
  1123. break;
  1124. case PCI_DEVICE_ID_JMICRON_JMB368:
  1125. /* The controller should be in single function IDE mode */
  1126. conf1 |= 0x00C00000; /* Set 22, 23 */
  1127. break;
  1128. }
  1129. pci_write_config_dword(pdev, 0x40, conf1);
  1130. pci_write_config_dword(pdev, 0x80, conf5);
  1131. /* Update pdev accordingly */
  1132. pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
  1133. pdev->hdr_type = hdr & 0x7f;
  1134. pdev->multifunction = !!(hdr & 0x80);
  1135. pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
  1136. pdev->class = class >> 8;
  1137. }
  1138. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
  1139. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
  1140. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
  1141. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
  1142. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
  1143. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
  1144. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
  1145. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
  1146. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
  1147. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
  1148. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
  1149. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
  1150. #endif
  1151. #ifdef CONFIG_X86_IO_APIC
  1152. static void __init quirk_alder_ioapic(struct pci_dev *pdev)
  1153. {
  1154. int i;
  1155. if ((pdev->class >> 8) != 0xff00)
  1156. return;
  1157. /* the first BAR is the location of the IO APIC...we must
  1158. * not touch this (and it's already covered by the fixmap), so
  1159. * forcibly insert it into the resource tree */
  1160. if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
  1161. insert_resource(&iomem_resource, &pdev->resource[0]);
  1162. /* The next five BARs all seem to be rubbish, so just clean
  1163. * them out */
  1164. for (i=1; i < 6; i++) {
  1165. memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
  1166. }
  1167. }
  1168. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
  1169. #endif
  1170. int pcie_mch_quirk;
  1171. EXPORT_SYMBOL(pcie_mch_quirk);
  1172. static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
  1173. {
  1174. pcie_mch_quirk = 1;
  1175. }
  1176. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
  1177. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
  1178. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
  1179. /*
  1180. * It's possible for the MSI to get corrupted if shpc and acpi
  1181. * are used together on certain PXH-based systems.
  1182. */
  1183. static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
  1184. {
  1185. pci_msi_off(dev);
  1186. dev->no_msi = 1;
  1187. dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n");
  1188. }
  1189. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
  1190. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
  1191. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
  1192. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
  1193. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
  1194. /*
  1195. * Some Intel PCI Express chipsets have trouble with downstream
  1196. * device power management.
  1197. */
  1198. static void quirk_intel_pcie_pm(struct pci_dev * dev)
  1199. {
  1200. pci_pm_d3_delay = 120;
  1201. dev->no_d1d2 = 1;
  1202. }
  1203. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
  1204. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
  1205. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
  1206. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
  1207. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
  1208. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
  1209. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
  1210. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
  1211. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
  1212. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
  1213. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
  1214. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
  1215. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
  1216. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
  1217. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
  1218. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
  1219. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
  1220. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
  1221. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
  1222. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
  1223. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
  1224. /*
  1225. * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
  1226. * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
  1227. * Re-allocate the region if needed...
  1228. */
  1229. static void __init quirk_tc86c001_ide(struct pci_dev *dev)
  1230. {
  1231. struct resource *r = &dev->resource[0];
  1232. if (r->start & 0x8) {
  1233. r->start = 0;
  1234. r->end = 0xf;
  1235. }
  1236. }
  1237. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
  1238. PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
  1239. quirk_tc86c001_ide);
  1240. static void __devinit quirk_netmos(struct pci_dev *dev)
  1241. {
  1242. unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
  1243. unsigned int num_serial = dev->subsystem_device & 0xf;
  1244. /*
  1245. * These Netmos parts are multiport serial devices with optional
  1246. * parallel ports. Even when parallel ports are present, they
  1247. * are identified as class SERIAL, which means the serial driver
  1248. * will claim them. To prevent this, mark them as class OTHER.
  1249. * These combo devices should be claimed by parport_serial.
  1250. *
  1251. * The subdevice ID is of the form 0x00PS, where <P> is the number
  1252. * of parallel ports and <S> is the number of serial ports.
  1253. */
  1254. switch (dev->device) {
  1255. case PCI_DEVICE_ID_NETMOS_9735:
  1256. case PCI_DEVICE_ID_NETMOS_9745:
  1257. case PCI_DEVICE_ID_NETMOS_9835:
  1258. case PCI_DEVICE_ID_NETMOS_9845:
  1259. case PCI_DEVICE_ID_NETMOS_9855:
  1260. if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
  1261. num_parallel) {
  1262. dev_info(&dev->dev, "Netmos %04x (%u parallel, "
  1263. "%u serial); changing class SERIAL to OTHER "
  1264. "(use parport_serial)\n",
  1265. dev->device, num_parallel, num_serial);
  1266. dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
  1267. (dev->class & 0xff);
  1268. }
  1269. }
  1270. }
  1271. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
  1272. static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
  1273. {
  1274. u16 command, pmcsr;
  1275. u8 __iomem *csr;
  1276. u8 cmd_hi;
  1277. int pm;
  1278. switch (dev->device) {
  1279. /* PCI IDs taken from drivers/net/e100.c */
  1280. case 0x1029:
  1281. case 0x1030 ... 0x1034:
  1282. case 0x1038 ... 0x103E:
  1283. case 0x1050 ... 0x1057:
  1284. case 0x1059:
  1285. case 0x1064 ... 0x106B:
  1286. case 0x1091 ... 0x1095:
  1287. case 0x1209:
  1288. case 0x1229:
  1289. case 0x2449:
  1290. case 0x2459:
  1291. case 0x245D:
  1292. case 0x27DC:
  1293. break;
  1294. default:
  1295. return;
  1296. }
  1297. /*
  1298. * Some firmware hands off the e100 with interrupts enabled,
  1299. * which can cause a flood of interrupts if packets are
  1300. * received before the driver attaches to the device. So
  1301. * disable all e100 interrupts here. The driver will
  1302. * re-enable them when it's ready.
  1303. */
  1304. pci_read_config_word(dev, PCI_COMMAND, &command);
  1305. if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
  1306. return;
  1307. /*
  1308. * Check that the device is in the D0 power state. If it's not,
  1309. * there is no point to look any further.
  1310. */
  1311. pm = pci_find_capability(dev, PCI_CAP_ID_PM);
  1312. if (pm) {
  1313. pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
  1314. if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
  1315. return;
  1316. }
  1317. /* Convert from PCI bus to resource space. */
  1318. csr = ioremap(pci_resource_start(dev, 0), 8);
  1319. if (!csr) {
  1320. dev_warn(&dev->dev, "Can't map e100 registers\n");
  1321. return;
  1322. }
  1323. cmd_hi = readb(csr + 3);
  1324. if (cmd_hi == 0) {
  1325. dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; "
  1326. "disabling\n");
  1327. writeb(1, csr + 3);
  1328. }
  1329. iounmap(csr);
  1330. }
  1331. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
  1332. static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
  1333. {
  1334. /* rev 1 ncr53c810 chips don't set the class at all which means
  1335. * they don't get their resources remapped. Fix that here.
  1336. */
  1337. if (dev->class == PCI_CLASS_NOT_DEFINED) {
  1338. dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n");
  1339. dev->class = PCI_CLASS_STORAGE_SCSI;
  1340. }
  1341. }
  1342. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
  1343. static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end)
  1344. {
  1345. while (f < end) {
  1346. if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
  1347. (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
  1348. #ifdef DEBUG
  1349. dev_dbg(&dev->dev, "calling quirk 0x%p", f->hook);
  1350. print_fn_descriptor_symbol(": %s()\n",
  1351. (unsigned long) f->hook);
  1352. #endif
  1353. f->hook(dev);
  1354. }
  1355. f++;
  1356. }
  1357. }
  1358. extern struct pci_fixup __start_pci_fixups_early[];
  1359. extern struct pci_fixup __end_pci_fixups_early[];
  1360. extern struct pci_fixup __start_pci_fixups_header[];
  1361. extern struct pci_fixup __end_pci_fixups_header[];
  1362. extern struct pci_fixup __start_pci_fixups_final[];
  1363. extern struct pci_fixup __end_pci_fixups_final[];
  1364. extern struct pci_fixup __start_pci_fixups_enable[];
  1365. extern struct pci_fixup __end_pci_fixups_enable[];
  1366. extern struct pci_fixup __start_pci_fixups_resume[];
  1367. extern struct pci_fixup __end_pci_fixups_resume[];
  1368. void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
  1369. {
  1370. struct pci_fixup *start, *end;
  1371. switch(pass) {
  1372. case pci_fixup_early:
  1373. start = __start_pci_fixups_early;
  1374. end = __end_pci_fixups_early;
  1375. break;
  1376. case pci_fixup_header:
  1377. start = __start_pci_fixups_header;
  1378. end = __end_pci_fixups_header;
  1379. break;
  1380. case pci_fixup_final:
  1381. start = __start_pci_fixups_final;
  1382. end = __end_pci_fixups_final;
  1383. break;
  1384. case pci_fixup_enable:
  1385. start = __start_pci_fixups_enable;
  1386. end = __end_pci_fixups_enable;
  1387. break;
  1388. case pci_fixup_resume:
  1389. start = __start_pci_fixups_resume;
  1390. end = __end_pci_fixups_resume;
  1391. break;
  1392. default:
  1393. /* stupid compiler warning, you would think with an enum... */
  1394. return;
  1395. }
  1396. pci_do_fixups(dev, start, end);
  1397. }
  1398. EXPORT_SYMBOL(pci_fixup_device);
  1399. /* Enable 1k I/O space granularity on the Intel P64H2 */
  1400. static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
  1401. {
  1402. u16 en1k;
  1403. u8 io_base_lo, io_limit_lo;
  1404. unsigned long base, limit;
  1405. struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
  1406. pci_read_config_word(dev, 0x40, &en1k);
  1407. if (en1k & 0x200) {
  1408. dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n");
  1409. pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
  1410. pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
  1411. base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
  1412. limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
  1413. if (base <= limit) {
  1414. res->start = base;
  1415. res->end = limit + 0x3ff;
  1416. }
  1417. }
  1418. }
  1419. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
  1420. /* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
  1421. * The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
  1422. * in drivers/pci/setup-bus.c
  1423. */
  1424. static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
  1425. {
  1426. u16 en1k, iobl_adr, iobl_adr_1k;
  1427. struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
  1428. pci_read_config_word(dev, 0x40, &en1k);
  1429. if (en1k & 0x200) {
  1430. pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
  1431. iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
  1432. if (iobl_adr != iobl_adr_1k) {
  1433. dev_info(&dev->dev, "Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1KB granularity\n",
  1434. iobl_adr,iobl_adr_1k);
  1435. pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
  1436. }
  1437. }
  1438. }
  1439. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
  1440. /* Under some circumstances, AER is not linked with extended capabilities.
  1441. * Force it to be linked by setting the corresponding control bit in the
  1442. * config space.
  1443. */
  1444. static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
  1445. {
  1446. uint8_t b;
  1447. if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
  1448. if (!(b & 0x20)) {
  1449. pci_write_config_byte(dev, 0xf41, b | 0x20);
  1450. dev_info(&dev->dev,
  1451. "Linking AER extended capability\n");
  1452. }
  1453. }
  1454. }
  1455. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
  1456. quirk_nvidia_ck804_pcie_aer_ext_cap);
  1457. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
  1458. quirk_nvidia_ck804_pcie_aer_ext_cap);
  1459. static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
  1460. {
  1461. /*
  1462. * Disable PCI Bus Parking and PCI Master read caching on CX700
  1463. * which causes unspecified timing errors with a VT6212L on the PCI
  1464. * bus leading to USB2.0 packet loss. The defaults are that these
  1465. * features are turned off but some BIOSes turn them on.
  1466. */
  1467. uint8_t b;
  1468. if (pci_read_config_byte(dev, 0x76, &b) == 0) {
  1469. if (b & 0x40) {
  1470. /* Turn off PCI Bus Parking */
  1471. pci_write_config_byte(dev, 0x76, b ^ 0x40);
  1472. /* Turn off PCI Master read caching */
  1473. pci_write_config_byte(dev, 0x72, 0x0);
  1474. pci_write_config_byte(dev, 0x75, 0x1);
  1475. pci_write_config_byte(dev, 0x77, 0x0);
  1476. printk(KERN_INFO
  1477. "PCI: VIA CX700 PCI parking/caching fixup on %s\n",
  1478. pci_name(dev));
  1479. }
  1480. }
  1481. }
  1482. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
  1483. #ifdef CONFIG_PCI_MSI
  1484. /* Some chipsets do not support MSI. We cannot easily rely on setting
  1485. * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
  1486. * some other busses controlled by the chipset even if Linux is not
  1487. * aware of it. Instead of setting the flag on all busses in the
  1488. * machine, simply disable MSI globally.
  1489. */
  1490. static void __init quirk_disable_all_msi(struct pci_dev *dev)
  1491. {
  1492. pci_no_msi();
  1493. dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n");
  1494. }
  1495. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
  1496. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
  1497. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
  1498. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
  1499. /* Disable MSI on chipsets that are known to not support it */
  1500. static void __devinit quirk_disable_msi(struct pci_dev *dev)
  1501. {
  1502. if (dev->subordinate) {
  1503. dev_warn(&dev->dev, "MSI quirk detected; "
  1504. "subordinate MSI disabled\n");
  1505. dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
  1506. }
  1507. }
  1508. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
  1509. /* Go through the list of Hypertransport capabilities and
  1510. * return 1 if a HT MSI capability is found and enabled */
  1511. static int __devinit msi_ht_cap_enabled(struct pci_dev *dev)
  1512. {
  1513. int pos, ttl = 48;
  1514. pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  1515. while (pos && ttl--) {
  1516. u8 flags;
  1517. if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
  1518. &flags) == 0)
  1519. {
  1520. dev_info(&dev->dev, "Found %s HT MSI Mapping\n",
  1521. flags & HT_MSI_FLAGS_ENABLE ?
  1522. "enabled" : "disabled");
  1523. return (flags & HT_MSI_FLAGS_ENABLE) != 0;
  1524. }
  1525. pos = pci_find_next_ht_capability(dev, pos,
  1526. HT_CAPTYPE_MSI_MAPPING);
  1527. }
  1528. return 0;
  1529. }
  1530. /* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
  1531. static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
  1532. {
  1533. if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
  1534. dev_warn(&dev->dev, "MSI quirk detected; "
  1535. "subordinate MSI disabled\n");
  1536. dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
  1537. }
  1538. }
  1539. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
  1540. quirk_msi_ht_cap);
  1541. /*
  1542. * Force enable MSI mapping capability on HT bridges
  1543. */
  1544. static void __devinit quirk_msi_ht_cap_enable(struct pci_dev *dev)
  1545. {
  1546. int pos, ttl = 48;
  1547. pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  1548. while (pos && ttl--) {
  1549. u8 flags;
  1550. if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, &flags) == 0) {
  1551. printk(KERN_INFO "PCI: Enabling HT MSI Mapping on %s\n",
  1552. pci_name(dev));
  1553. pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
  1554. flags | HT_MSI_FLAGS_ENABLE);
  1555. }
  1556. pos = pci_find_next_ht_capability(dev, pos,
  1557. HT_CAPTYPE_MSI_MAPPING);
  1558. }
  1559. }
  1560. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
  1561. PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
  1562. quirk_msi_ht_cap_enable);
  1563. /* The nVidia CK804 chipset may have 2 HT MSI mappings.
  1564. * MSI are supported if the MSI capability set in any of these mappings.
  1565. */
  1566. static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
  1567. {
  1568. struct pci_dev *pdev;
  1569. if (!dev->subordinate)
  1570. return;
  1571. /* check HT MSI cap on this chipset and the root one.
  1572. * a single one having MSI is enough to be sure that MSI are supported.
  1573. */
  1574. pdev = pci_get_slot(dev->bus, 0);
  1575. if (!pdev)
  1576. return;
  1577. if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
  1578. dev_warn(&dev->dev, "MSI quirk detected; "
  1579. "subordinate MSI disabled\n");
  1580. dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
  1581. }
  1582. pci_dev_put(pdev);
  1583. }
  1584. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
  1585. quirk_nvidia_ck804_msi_ht_cap);
  1586. /*
  1587. * Force enable MSI mapping capability on HT bridges */
  1588. static inline void ht_enable_msi_mapping(struct pci_dev *dev)
  1589. {
  1590. int pos, ttl = 48;
  1591. pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  1592. while (pos && ttl--) {
  1593. u8 flags;
  1594. if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
  1595. &flags) == 0) {
  1596. dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
  1597. pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
  1598. flags | HT_MSI_FLAGS_ENABLE);
  1599. }
  1600. pos = pci_find_next_ht_capability(dev, pos,
  1601. HT_CAPTYPE_MSI_MAPPING);
  1602. }
  1603. }
  1604. static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
  1605. {
  1606. struct pci_dev *host_bridge;
  1607. int pos, ttl = 48;
  1608. /*
  1609. * HT MSI mapping should be disabled on devices that are below
  1610. * a non-Hypertransport host bridge. Locate the host bridge...
  1611. */
  1612. host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
  1613. if (host_bridge == NULL) {
  1614. dev_warn(&dev->dev,
  1615. "nv_msi_ht_cap_quirk didn't locate host bridge\n");
  1616. return;
  1617. }
  1618. pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
  1619. if (pos != 0) {
  1620. /* Host bridge is to HT */
  1621. ht_enable_msi_mapping(dev);
  1622. return;
  1623. }
  1624. /* Host bridge is not to HT, disable HT MSI mapping on this device */
  1625. pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  1626. while (pos && ttl--) {
  1627. u8 flags;
  1628. if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
  1629. &flags) == 0) {
  1630. dev_info(&dev->dev, "Quirk disabling HT MSI mapping");
  1631. pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
  1632. flags & ~HT_MSI_FLAGS_ENABLE);
  1633. }
  1634. pos = pci_find_next_ht_capability(dev, pos,
  1635. HT_CAPTYPE_MSI_MAPPING);
  1636. }
  1637. }
  1638. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk);
  1639. static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
  1640. {
  1641. dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
  1642. }
  1643. static void __devinit quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
  1644. {
  1645. struct pci_dev *p;
  1646. /* SB700 MSI issue will be fixed at HW level from revision A21,
  1647. * we need check PCI REVISION ID of SMBus controller to get SB700
  1648. * revision.
  1649. */
  1650. p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
  1651. NULL);
  1652. if (!p)
  1653. return;
  1654. if ((p->revision < 0x3B) && (p->revision >= 0x30))
  1655. dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
  1656. pci_dev_put(p);
  1657. }
  1658. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1659. PCI_DEVICE_ID_TIGON3_5780,
  1660. quirk_msi_intx_disable_bug);
  1661. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1662. PCI_DEVICE_ID_TIGON3_5780S,
  1663. quirk_msi_intx_disable_bug);
  1664. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1665. PCI_DEVICE_ID_TIGON3_5714,
  1666. quirk_msi_intx_disable_bug);
  1667. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1668. PCI_DEVICE_ID_TIGON3_5714S,
  1669. quirk_msi_intx_disable_bug);
  1670. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1671. PCI_DEVICE_ID_TIGON3_5715,
  1672. quirk_msi_intx_disable_bug);
  1673. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1674. PCI_DEVICE_ID_TIGON3_5715S,
  1675. quirk_msi_intx_disable_bug);
  1676. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
  1677. quirk_msi_intx_disable_ati_bug);
  1678. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
  1679. quirk_msi_intx_disable_ati_bug);
  1680. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
  1681. quirk_msi_intx_disable_ati_bug);
  1682. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
  1683. quirk_msi_intx_disable_ati_bug);
  1684. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
  1685. quirk_msi_intx_disable_ati_bug);
  1686. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
  1687. quirk_msi_intx_disable_bug);
  1688. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
  1689. quirk_msi_intx_disable_bug);
  1690. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
  1691. quirk_msi_intx_disable_bug);
  1692. #endif /* CONFIG_PCI_MSI */