quirks.c 84 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 <linux/ioport.h>
  27. #include "pci.h"
  28. int isa_dma_bridge_buggy;
  29. EXPORT_SYMBOL(isa_dma_bridge_buggy);
  30. int pci_pci_problems;
  31. EXPORT_SYMBOL(pci_pci_problems);
  32. int pcie_mch_quirk;
  33. EXPORT_SYMBOL(pcie_mch_quirk);
  34. #ifdef CONFIG_PCI_QUIRKS
  35. /*
  36. * This quirk function disables the device and releases resources
  37. * which is specified by kernel's boot parameter 'pci=resource_alignment='.
  38. * It also rounds up size to specified alignment.
  39. * Later on, the kernel will assign page-aligned memory resource back
  40. * to that device.
  41. */
  42. static void __devinit quirk_resource_alignment(struct pci_dev *dev)
  43. {
  44. int i;
  45. struct resource *r;
  46. resource_size_t align, size;
  47. if (!pci_is_reassigndev(dev))
  48. return;
  49. if (dev->hdr_type == PCI_HEADER_TYPE_NORMAL &&
  50. (dev->class >> 8) == PCI_CLASS_BRIDGE_HOST) {
  51. dev_warn(&dev->dev,
  52. "Can't reassign resources to host bridge.\n");
  53. return;
  54. }
  55. dev_info(&dev->dev, "Disabling device and release resources.\n");
  56. pci_disable_device(dev);
  57. align = pci_specified_resource_alignment(dev);
  58. for (i=0; i < PCI_BRIDGE_RESOURCES; i++) {
  59. r = &dev->resource[i];
  60. if (!(r->flags & IORESOURCE_MEM))
  61. continue;
  62. size = resource_size(r);
  63. if (size < align) {
  64. size = align;
  65. dev_info(&dev->dev,
  66. "Rounding up size of resource #%d to %#llx.\n",
  67. i, (unsigned long long)size);
  68. }
  69. r->end = size - 1;
  70. r->start = 0;
  71. }
  72. /* Need to disable bridge's resource window,
  73. * to enable the kernel to reassign new resource
  74. * window later on.
  75. */
  76. if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE &&
  77. (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
  78. for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
  79. r = &dev->resource[i];
  80. if (!(r->flags & IORESOURCE_MEM))
  81. continue;
  82. r->end = resource_size(r) - 1;
  83. r->start = 0;
  84. }
  85. pci_disable_bridge_window(dev);
  86. }
  87. }
  88. DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, quirk_resource_alignment);
  89. /* The Mellanox Tavor device gives false positive parity errors
  90. * Mark this device with a broken_parity_status, to allow
  91. * PCI scanning code to "skip" this now blacklisted device.
  92. */
  93. static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
  94. {
  95. dev->broken_parity_status = 1; /* This device gives false positives */
  96. }
  97. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
  98. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
  99. /* Deal with broken BIOS'es that neglect to enable passive release,
  100. which can cause problems in combination with the 82441FX/PPro MTRRs */
  101. static void quirk_passive_release(struct pci_dev *dev)
  102. {
  103. struct pci_dev *d = NULL;
  104. unsigned char dlc;
  105. /* We have to make sure a particular bit is set in the PIIX3
  106. ISA bridge, so we have to go out and find it. */
  107. while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) {
  108. pci_read_config_byte(d, 0x82, &dlc);
  109. if (!(dlc & 1<<1)) {
  110. dev_info(&d->dev, "PIIX3: Enabling Passive Release\n");
  111. dlc |= 1<<1;
  112. pci_write_config_byte(d, 0x82, dlc);
  113. }
  114. }
  115. }
  116. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
  117. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release);
  118. /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
  119. but VIA don't answer queries. If you happen to have good contacts at VIA
  120. ask them for me please -- Alan
  121. This appears to be BIOS not version dependent. So presumably there is a
  122. chipset level fix */
  123. static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
  124. {
  125. if (!isa_dma_bridge_buggy) {
  126. isa_dma_bridge_buggy=1;
  127. dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n");
  128. }
  129. }
  130. /*
  131. * Its not totally clear which chipsets are the problematic ones
  132. * We know 82C586 and 82C596 variants are affected.
  133. */
  134. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs);
  135. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs);
  136. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs);
  137. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs);
  138. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs);
  139. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs);
  140. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs);
  141. /*
  142. * Chipsets where PCI->PCI transfers vanish or hang
  143. */
  144. static void __devinit quirk_nopcipci(struct pci_dev *dev)
  145. {
  146. if ((pci_pci_problems & PCIPCI_FAIL)==0) {
  147. dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n");
  148. pci_pci_problems |= PCIPCI_FAIL;
  149. }
  150. }
  151. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci);
  152. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci);
  153. static void __devinit quirk_nopciamd(struct pci_dev *dev)
  154. {
  155. u8 rev;
  156. pci_read_config_byte(dev, 0x08, &rev);
  157. if (rev == 0x13) {
  158. /* Erratum 24 */
  159. dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n");
  160. pci_pci_problems |= PCIAGP_FAIL;
  161. }
  162. }
  163. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd);
  164. /*
  165. * Triton requires workarounds to be used by the drivers
  166. */
  167. static void __devinit quirk_triton(struct pci_dev *dev)
  168. {
  169. if ((pci_pci_problems&PCIPCI_TRITON)==0) {
  170. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  171. pci_pci_problems |= PCIPCI_TRITON;
  172. }
  173. }
  174. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton);
  175. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton);
  176. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton);
  177. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton);
  178. /*
  179. * VIA Apollo KT133 needs PCI latency patch
  180. * Made according to a windows driver based patch by George E. Breese
  181. * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm
  182. * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for
  183. * the info on which Mr Breese based his work.
  184. *
  185. * Updated based on further information from the site and also on
  186. * information provided by VIA
  187. */
  188. static void quirk_vialatency(struct pci_dev *dev)
  189. {
  190. struct pci_dev *p;
  191. u8 busarb;
  192. /* Ok we have a potential problem chipset here. Now see if we have
  193. a buggy southbridge */
  194. p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
  195. if (p!=NULL) {
  196. /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
  197. /* Check for buggy part revisions */
  198. if (p->revision < 0x40 || p->revision > 0x42)
  199. goto exit;
  200. } else {
  201. p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL);
  202. if (p==NULL) /* No problem parts */
  203. goto exit;
  204. /* Check for buggy part revisions */
  205. if (p->revision < 0x10 || p->revision > 0x12)
  206. goto exit;
  207. }
  208. /*
  209. * Ok we have the problem. Now set the PCI master grant to
  210. * occur every master grant. The apparent bug is that under high
  211. * PCI load (quite common in Linux of course) you can get data
  212. * loss when the CPU is held off the bus for 3 bus master requests
  213. * This happens to include the IDE controllers....
  214. *
  215. * VIA only apply this fix when an SB Live! is present but under
  216. * both Linux and Windows this isnt enough, and we have seen
  217. * corruption without SB Live! but with things like 3 UDMA IDE
  218. * controllers. So we ignore that bit of the VIA recommendation..
  219. */
  220. pci_read_config_byte(dev, 0x76, &busarb);
  221. /* Set bit 4 and bi 5 of byte 76 to 0x01
  222. "Master priority rotation on every PCI master grant */
  223. busarb &= ~(1<<5);
  224. busarb |= (1<<4);
  225. pci_write_config_byte(dev, 0x76, busarb);
  226. dev_info(&dev->dev, "Applying VIA southbridge workaround\n");
  227. exit:
  228. pci_dev_put(p);
  229. }
  230. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
  231. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
  232. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
  233. /* Must restore this on a resume from RAM */
  234. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency);
  235. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency);
  236. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency);
  237. /*
  238. * VIA Apollo VP3 needs ETBF on BT848/878
  239. */
  240. static void __devinit quirk_viaetbf(struct pci_dev *dev)
  241. {
  242. if ((pci_pci_problems&PCIPCI_VIAETBF)==0) {
  243. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  244. pci_pci_problems |= PCIPCI_VIAETBF;
  245. }
  246. }
  247. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf);
  248. static void __devinit quirk_vsfx(struct pci_dev *dev)
  249. {
  250. if ((pci_pci_problems&PCIPCI_VSFX)==0) {
  251. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  252. pci_pci_problems |= PCIPCI_VSFX;
  253. }
  254. }
  255. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx);
  256. /*
  257. * Ali Magik requires workarounds to be used by the drivers
  258. * that DMA to AGP space. Latency must be set to 0xA and triton
  259. * workaround applied too
  260. * [Info kindly provided by ALi]
  261. */
  262. static void __init quirk_alimagik(struct pci_dev *dev)
  263. {
  264. if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
  265. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  266. pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
  267. }
  268. }
  269. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik);
  270. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik);
  271. /*
  272. * Natoma has some interesting boundary conditions with Zoran stuff
  273. * at least
  274. */
  275. static void __devinit quirk_natoma(struct pci_dev *dev)
  276. {
  277. if ((pci_pci_problems&PCIPCI_NATOMA)==0) {
  278. dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n");
  279. pci_pci_problems |= PCIPCI_NATOMA;
  280. }
  281. }
  282. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma);
  283. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma);
  284. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma);
  285. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma);
  286. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma);
  287. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma);
  288. /*
  289. * This chip can cause PCI parity errors if config register 0xA0 is read
  290. * while DMAs are occurring.
  291. */
  292. static void __devinit quirk_citrine(struct pci_dev *dev)
  293. {
  294. dev->cfg_size = 0xA0;
  295. }
  296. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine);
  297. /*
  298. * S3 868 and 968 chips report region size equal to 32M, but they decode 64M.
  299. * If it's needed, re-allocate the region.
  300. */
  301. static void __devinit quirk_s3_64M(struct pci_dev *dev)
  302. {
  303. struct resource *r = &dev->resource[0];
  304. if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
  305. r->start = 0;
  306. r->end = 0x3ffffff;
  307. }
  308. }
  309. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M);
  310. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M);
  311. static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
  312. unsigned size, int nr, const char *name)
  313. {
  314. region &= ~(size-1);
  315. if (region) {
  316. struct pci_bus_region bus_region;
  317. struct resource *res = dev->resource + nr;
  318. res->name = pci_name(dev);
  319. res->start = region;
  320. res->end = region + size - 1;
  321. res->flags = IORESOURCE_IO;
  322. /* Convert from PCI bus to resource space. */
  323. bus_region.start = res->start;
  324. bus_region.end = res->end;
  325. pcibios_bus_to_resource(dev, res, &bus_region);
  326. pci_claim_resource(dev, nr);
  327. dev_info(&dev->dev, "quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
  328. }
  329. }
  330. /*
  331. * ATI Northbridge setups MCE the processor if you even
  332. * read somewhere between 0x3b0->0x3bb or read 0x3d3
  333. */
  334. static void __devinit quirk_ati_exploding_mce(struct pci_dev *dev)
  335. {
  336. dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n");
  337. /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */
  338. request_region(0x3b0, 0x0C, "RadeonIGP");
  339. request_region(0x3d3, 0x01, "RadeonIGP");
  340. }
  341. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce);
  342. /*
  343. * Let's make the southbridge information explicit instead
  344. * of having to worry about people probing the ACPI areas,
  345. * for example.. (Yes, it happens, and if you read the wrong
  346. * ACPI register it will put the machine to sleep with no
  347. * way of waking it up again. Bummer).
  348. *
  349. * ALI M7101: Two IO regions pointed to by words at
  350. * 0xE0 (64 bytes of ACPI registers)
  351. * 0xE2 (32 bytes of SMB registers)
  352. */
  353. static void __devinit quirk_ali7101_acpi(struct pci_dev *dev)
  354. {
  355. u16 region;
  356. pci_read_config_word(dev, 0xE0, &region);
  357. quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI");
  358. pci_read_config_word(dev, 0xE2, &region);
  359. quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB");
  360. }
  361. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi);
  362. static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
  363. {
  364. u32 devres;
  365. u32 mask, size, base;
  366. pci_read_config_dword(dev, port, &devres);
  367. if ((devres & enable) != enable)
  368. return;
  369. mask = (devres >> 16) & 15;
  370. base = devres & 0xffff;
  371. size = 16;
  372. for (;;) {
  373. unsigned bit = size >> 1;
  374. if ((bit & mask) == bit)
  375. break;
  376. size = bit;
  377. }
  378. /*
  379. * For now we only print it out. Eventually we'll want to
  380. * reserve it (at least if it's in the 0x1000+ range), but
  381. * let's get enough confirmation reports first.
  382. */
  383. base &= -size;
  384. dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
  385. }
  386. static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable)
  387. {
  388. u32 devres;
  389. u32 mask, size, base;
  390. pci_read_config_dword(dev, port, &devres);
  391. if ((devres & enable) != enable)
  392. return;
  393. base = devres & 0xffff0000;
  394. mask = (devres & 0x3f) << 16;
  395. size = 128 << 16;
  396. for (;;) {
  397. unsigned bit = size >> 1;
  398. if ((bit & mask) == bit)
  399. break;
  400. size = bit;
  401. }
  402. /*
  403. * For now we only print it out. Eventually we'll want to
  404. * reserve it, but let's get enough confirmation reports first.
  405. */
  406. base &= -size;
  407. dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
  408. }
  409. /*
  410. * PIIX4 ACPI: Two IO regions pointed to by longwords at
  411. * 0x40 (64 bytes of ACPI registers)
  412. * 0x90 (16 bytes of SMB registers)
  413. * and a few strange programmable PIIX4 device resources.
  414. */
  415. static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
  416. {
  417. u32 region, res_a;
  418. pci_read_config_dword(dev, 0x40, &region);
  419. quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");
  420. pci_read_config_dword(dev, 0x90, &region);
  421. quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");
  422. /* Device resource A has enables for some of the other ones */
  423. pci_read_config_dword(dev, 0x5c, &res_a);
  424. piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21);
  425. piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21);
  426. /* Device resource D is just bitfields for static resources */
  427. /* Device 12 enabled? */
  428. if (res_a & (1 << 29)) {
  429. piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20);
  430. piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7);
  431. }
  432. /* Device 13 enabled? */
  433. if (res_a & (1 << 30)) {
  434. piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20);
  435. piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7);
  436. }
  437. piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20);
  438. piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20);
  439. }
  440. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi);
  441. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi);
  442. /*
  443. * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at
  444. * 0x40 (128 bytes of ACPI, GPIO & TCO registers)
  445. * 0x58 (64 bytes of GPIO I/O space)
  446. */
  447. static void __devinit quirk_ich4_lpc_acpi(struct pci_dev *dev)
  448. {
  449. u32 region;
  450. pci_read_config_dword(dev, 0x40, &region);
  451. quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH4 ACPI/GPIO/TCO");
  452. pci_read_config_dword(dev, 0x58, &region);
  453. quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH4 GPIO");
  454. }
  455. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi);
  456. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi);
  457. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi);
  458. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi);
  459. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi);
  460. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi);
  461. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi);
  462. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi);
  463. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi);
  464. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi);
  465. static void __devinit ich6_lpc_acpi_gpio(struct pci_dev *dev)
  466. {
  467. u32 region;
  468. pci_read_config_dword(dev, 0x40, &region);
  469. quirk_io_region(dev, region, 128, PCI_BRIDGE_RESOURCES, "ICH6 ACPI/GPIO/TCO");
  470. pci_read_config_dword(dev, 0x48, &region);
  471. quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES+1, "ICH6 GPIO");
  472. }
  473. static void __devinit ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize)
  474. {
  475. u32 val;
  476. u32 size, base;
  477. pci_read_config_dword(dev, reg, &val);
  478. /* Enabled? */
  479. if (!(val & 1))
  480. return;
  481. base = val & 0xfffc;
  482. if (dynsize) {
  483. /*
  484. * This is not correct. It is 16, 32 or 64 bytes depending on
  485. * register D31:F0:ADh bits 5:4.
  486. *
  487. * But this gets us at least _part_ of it.
  488. */
  489. size = 16;
  490. } else {
  491. size = 128;
  492. }
  493. base &= ~(size-1);
  494. /* Just print it out for now. We should reserve it after more debugging */
  495. dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base+size-1);
  496. }
  497. static void __devinit quirk_ich6_lpc(struct pci_dev *dev)
  498. {
  499. /* Shared ACPI/GPIO decode with all ICH6+ */
  500. ich6_lpc_acpi_gpio(dev);
  501. /* ICH6-specific generic IO decode */
  502. ich6_lpc_generic_decode(dev, 0x84, "LPC Generic IO decode 1", 0);
  503. ich6_lpc_generic_decode(dev, 0x88, "LPC Generic IO decode 2", 1);
  504. }
  505. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc);
  506. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc);
  507. static void __devinit ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name)
  508. {
  509. u32 val;
  510. u32 mask, base;
  511. pci_read_config_dword(dev, reg, &val);
  512. /* Enabled? */
  513. if (!(val & 1))
  514. return;
  515. /*
  516. * IO base in bits 15:2, mask in bits 23:18, both
  517. * are dword-based
  518. */
  519. base = val & 0xfffc;
  520. mask = (val >> 16) & 0xfc;
  521. mask |= 3;
  522. /* Just print it out for now. We should reserve it after more debugging */
  523. dev_info(&dev->dev, "%s PIO at %04x (mask %04x)\n", name, base, mask);
  524. }
  525. /* ICH7-10 has the same common LPC generic IO decode registers */
  526. static void __devinit quirk_ich7_lpc(struct pci_dev *dev)
  527. {
  528. /* We share the common ACPI/DPIO decode with ICH6 */
  529. ich6_lpc_acpi_gpio(dev);
  530. /* And have 4 ICH7+ generic decodes */
  531. ich7_lpc_generic_decode(dev, 0x84, "ICH7 LPC Generic IO decode 1");
  532. ich7_lpc_generic_decode(dev, 0x88, "ICH7 LPC Generic IO decode 2");
  533. ich7_lpc_generic_decode(dev, 0x8c, "ICH7 LPC Generic IO decode 3");
  534. ich7_lpc_generic_decode(dev, 0x90, "ICH7 LPC Generic IO decode 4");
  535. }
  536. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich7_lpc);
  537. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich7_lpc);
  538. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich7_lpc);
  539. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich7_lpc);
  540. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich7_lpc);
  541. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich7_lpc);
  542. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich7_lpc);
  543. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich7_lpc);
  544. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich7_lpc);
  545. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich7_lpc);
  546. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich7_lpc);
  547. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich7_lpc);
  548. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1, quirk_ich7_lpc);
  549. /*
  550. * VIA ACPI: One IO region pointed to by longword at
  551. * 0x48 or 0x20 (256 bytes of ACPI registers)
  552. */
  553. static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev)
  554. {
  555. u32 region;
  556. if (dev->revision & 0x10) {
  557. pci_read_config_dword(dev, 0x48, &region);
  558. region &= PCI_BASE_ADDRESS_IO_MASK;
  559. quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI");
  560. }
  561. }
  562. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi);
  563. /*
  564. * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at
  565. * 0x48 (256 bytes of ACPI registers)
  566. * 0x70 (128 bytes of hardware monitoring register)
  567. * 0x90 (16 bytes of SMB registers)
  568. */
  569. static void __devinit quirk_vt82c686_acpi(struct pci_dev *dev)
  570. {
  571. u16 hm;
  572. u32 smb;
  573. quirk_vt82c586_acpi(dev);
  574. pci_read_config_word(dev, 0x70, &hm);
  575. hm &= PCI_BASE_ADDRESS_IO_MASK;
  576. quirk_io_region(dev, hm, 128, PCI_BRIDGE_RESOURCES + 1, "vt82c686 HW-mon");
  577. pci_read_config_dword(dev, 0x90, &smb);
  578. smb &= PCI_BASE_ADDRESS_IO_MASK;
  579. quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 2, "vt82c686 SMB");
  580. }
  581. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi);
  582. /*
  583. * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at
  584. * 0x88 (128 bytes of power management registers)
  585. * 0xd0 (16 bytes of SMB registers)
  586. */
  587. static void __devinit quirk_vt8235_acpi(struct pci_dev *dev)
  588. {
  589. u16 pm, smb;
  590. pci_read_config_word(dev, 0x88, &pm);
  591. pm &= PCI_BASE_ADDRESS_IO_MASK;
  592. quirk_io_region(dev, pm, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM");
  593. pci_read_config_word(dev, 0xd0, &smb);
  594. smb &= PCI_BASE_ADDRESS_IO_MASK;
  595. quirk_io_region(dev, smb, 16, PCI_BRIDGE_RESOURCES + 1, "vt8235 SMB");
  596. }
  597. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi);
  598. #ifdef CONFIG_X86_IO_APIC
  599. #include <asm/io_apic.h>
  600. /*
  601. * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip
  602. * devices to the external APIC.
  603. *
  604. * TODO: When we have device-specific interrupt routers,
  605. * this code will go away from quirks.
  606. */
  607. static void quirk_via_ioapic(struct pci_dev *dev)
  608. {
  609. u8 tmp;
  610. if (nr_ioapics < 1)
  611. tmp = 0; /* nothing routed to external APIC */
  612. else
  613. tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
  614. dev_info(&dev->dev, "%sbling VIA external APIC routing\n",
  615. tmp == 0 ? "Disa" : "Ena");
  616. /* Offset 0x58: External APIC IRQ output control */
  617. pci_write_config_byte (dev, 0x58, tmp);
  618. }
  619. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
  620. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic);
  621. /*
  622. * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
  623. * This leads to doubled level interrupt rates.
  624. * Set this bit to get rid of cycle wastage.
  625. * Otherwise uncritical.
  626. */
  627. static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev)
  628. {
  629. u8 misc_control2;
  630. #define BYPASS_APIC_DEASSERT 8
  631. pci_read_config_byte(dev, 0x5B, &misc_control2);
  632. if (!(misc_control2 & BYPASS_APIC_DEASSERT)) {
  633. dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n");
  634. pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT);
  635. }
  636. }
  637. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
  638. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert);
  639. /*
  640. * The AMD io apic can hang the box when an apic irq is masked.
  641. * We check all revs >= B0 (yet not in the pre production!) as the bug
  642. * is currently marked NoFix
  643. *
  644. * We have multiple reports of hangs with this chipset that went away with
  645. * noapic specified. For the moment we assume it's the erratum. We may be wrong
  646. * of course. However the advice is demonstrably good even if so..
  647. */
  648. static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
  649. {
  650. if (dev->revision >= 0x02) {
  651. dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
  652. dev_warn(&dev->dev, " : booting with the \"noapic\" option\n");
  653. }
  654. }
  655. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
  656. static void __init quirk_ioapic_rmw(struct pci_dev *dev)
  657. {
  658. if (dev->devfn == 0 && dev->bus->number == 0)
  659. sis_apic_bug = 1;
  660. }
  661. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw);
  662. #endif /* CONFIG_X86_IO_APIC */
  663. /*
  664. * Some settings of MMRBC can lead to data corruption so block changes.
  665. * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide
  666. */
  667. static void __init quirk_amd_8131_mmrbc(struct pci_dev *dev)
  668. {
  669. if (dev->subordinate && dev->revision <= 0x12) {
  670. dev_info(&dev->dev, "AMD8131 rev %x detected; "
  671. "disabling PCI-X MMRBC\n", dev->revision);
  672. dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC;
  673. }
  674. }
  675. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc);
  676. /*
  677. * FIXME: it is questionable that quirk_via_acpi
  678. * is needed. It shows up as an ISA bridge, and does not
  679. * support the PCI_INTERRUPT_LINE register at all. Therefore
  680. * it seems like setting the pci_dev's 'irq' to the
  681. * value of the ACPI SCI interrupt is only done for convenience.
  682. * -jgarzik
  683. */
  684. static void __devinit quirk_via_acpi(struct pci_dev *d)
  685. {
  686. /*
  687. * VIA ACPI device: SCI IRQ line in PCI config byte 0x42
  688. */
  689. u8 irq;
  690. pci_read_config_byte(d, 0x42, &irq);
  691. irq &= 0xf;
  692. if (irq && (irq != 2))
  693. d->irq = irq;
  694. }
  695. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi);
  696. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi);
  697. /*
  698. * VIA bridges which have VLink
  699. */
  700. static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18;
  701. static void quirk_via_bridge(struct pci_dev *dev)
  702. {
  703. /* See what bridge we have and find the device ranges */
  704. switch (dev->device) {
  705. case PCI_DEVICE_ID_VIA_82C686:
  706. /* The VT82C686 is special, it attaches to PCI and can have
  707. any device number. All its subdevices are functions of
  708. that single device. */
  709. via_vlink_dev_lo = PCI_SLOT(dev->devfn);
  710. via_vlink_dev_hi = PCI_SLOT(dev->devfn);
  711. break;
  712. case PCI_DEVICE_ID_VIA_8237:
  713. case PCI_DEVICE_ID_VIA_8237A:
  714. via_vlink_dev_lo = 15;
  715. break;
  716. case PCI_DEVICE_ID_VIA_8235:
  717. via_vlink_dev_lo = 16;
  718. break;
  719. case PCI_DEVICE_ID_VIA_8231:
  720. case PCI_DEVICE_ID_VIA_8233_0:
  721. case PCI_DEVICE_ID_VIA_8233A:
  722. case PCI_DEVICE_ID_VIA_8233C_0:
  723. via_vlink_dev_lo = 17;
  724. break;
  725. }
  726. }
  727. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge);
  728. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge);
  729. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge);
  730. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge);
  731. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge);
  732. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge);
  733. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge);
  734. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge);
  735. /**
  736. * quirk_via_vlink - VIA VLink IRQ number update
  737. * @dev: PCI device
  738. *
  739. * If the device we are dealing with is on a PIC IRQ we need to
  740. * ensure that the IRQ line register which usually is not relevant
  741. * for PCI cards, is actually written so that interrupts get sent
  742. * to the right place.
  743. * We only do this on systems where a VIA south bridge was detected,
  744. * and only for VIA devices on the motherboard (see quirk_via_bridge
  745. * above).
  746. */
  747. static void quirk_via_vlink(struct pci_dev *dev)
  748. {
  749. u8 irq, new_irq;
  750. /* Check if we have VLink at all */
  751. if (via_vlink_dev_lo == -1)
  752. return;
  753. new_irq = dev->irq;
  754. /* Don't quirk interrupts outside the legacy IRQ range */
  755. if (!new_irq || new_irq > 15)
  756. return;
  757. /* Internal device ? */
  758. if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi ||
  759. PCI_SLOT(dev->devfn) < via_vlink_dev_lo)
  760. return;
  761. /* This is an internal VLink device on a PIC interrupt. The BIOS
  762. ought to have set this but may not have, so we redo it */
  763. pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
  764. if (new_irq != irq) {
  765. dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n",
  766. irq, new_irq);
  767. udelay(15); /* unknown if delay really needed */
  768. pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
  769. }
  770. }
  771. DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink);
  772. /*
  773. * VIA VT82C598 has its device ID settable and many BIOSes
  774. * set it to the ID of VT82C597 for backward compatibility.
  775. * We need to switch it off to be able to recognize the real
  776. * type of the chip.
  777. */
  778. static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
  779. {
  780. pci_write_config_byte(dev, 0xfc, 0);
  781. pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
  782. }
  783. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id);
  784. /*
  785. * CardBus controllers have a legacy base address that enables them
  786. * to respond as i82365 pcmcia controllers. We don't want them to
  787. * do this even if the Linux CardBus driver is not loaded, because
  788. * the Linux i82365 driver does not (and should not) handle CardBus.
  789. */
  790. static void quirk_cardbus_legacy(struct pci_dev *dev)
  791. {
  792. if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
  793. return;
  794. pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
  795. }
  796. DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
  797. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
  798. /*
  799. * Following the PCI ordering rules is optional on the AMD762. I'm not
  800. * sure what the designers were smoking but let's not inhale...
  801. *
  802. * To be fair to AMD, it follows the spec by default, its BIOS people
  803. * who turn it off!
  804. */
  805. static void quirk_amd_ordering(struct pci_dev *dev)
  806. {
  807. u32 pcic;
  808. pci_read_config_dword(dev, 0x4C, &pcic);
  809. if ((pcic&6)!=6) {
  810. pcic |= 6;
  811. dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n");
  812. pci_write_config_dword(dev, 0x4C, pcic);
  813. pci_read_config_dword(dev, 0x84, &pcic);
  814. pcic |= (1<<23); /* Required in this mode */
  815. pci_write_config_dword(dev, 0x84, pcic);
  816. }
  817. }
  818. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
  819. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering);
  820. /*
  821. * DreamWorks provided workaround for Dunord I-3000 problem
  822. *
  823. * This card decodes and responds to addresses not apparently
  824. * assigned to it. We force a larger allocation to ensure that
  825. * nothing gets put too close to it.
  826. */
  827. static void __devinit quirk_dunord ( struct pci_dev * dev )
  828. {
  829. struct resource *r = &dev->resource [1];
  830. r->start = 0;
  831. r->end = 0xffffff;
  832. }
  833. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord);
  834. /*
  835. * i82380FB mobile docking controller: its PCI-to-PCI bridge
  836. * is subtractive decoding (transparent), and does indicate this
  837. * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80
  838. * instead of 0x01.
  839. */
  840. static void __devinit quirk_transparent_bridge(struct pci_dev *dev)
  841. {
  842. dev->transparent = 1;
  843. }
  844. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge);
  845. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge);
  846. /*
  847. * Common misconfiguration of the MediaGX/Geode PCI master that will
  848. * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1
  849. * datasheets found at http://www.national.com/ds/GX for info on what
  850. * these bits do. <christer@weinigel.se>
  851. */
  852. static void quirk_mediagx_master(struct pci_dev *dev)
  853. {
  854. u8 reg;
  855. pci_read_config_byte(dev, 0x41, &reg);
  856. if (reg & 2) {
  857. reg &= ~2;
  858. dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg);
  859. pci_write_config_byte(dev, 0x41, reg);
  860. }
  861. }
  862. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
  863. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master);
  864. /*
  865. * Ensure C0 rev restreaming is off. This is normally done by
  866. * the BIOS but in the odd case it is not the results are corruption
  867. * hence the presence of a Linux check
  868. */
  869. static void quirk_disable_pxb(struct pci_dev *pdev)
  870. {
  871. u16 config;
  872. if (pdev->revision != 0x04) /* Only C0 requires this */
  873. return;
  874. pci_read_config_word(pdev, 0x40, &config);
  875. if (config & (1<<6)) {
  876. config &= ~(1<<6);
  877. pci_write_config_word(pdev, 0x40, config);
  878. dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n");
  879. }
  880. }
  881. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
  882. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb);
  883. static void __devinit quirk_amd_ide_mode(struct pci_dev *pdev)
  884. {
  885. /* set sb600/sb700/sb800 sata to ahci mode */
  886. u8 tmp;
  887. pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
  888. if (tmp == 0x01) {
  889. pci_read_config_byte(pdev, 0x40, &tmp);
  890. pci_write_config_byte(pdev, 0x40, tmp|1);
  891. pci_write_config_byte(pdev, 0x9, 1);
  892. pci_write_config_byte(pdev, 0xa, 6);
  893. pci_write_config_byte(pdev, 0x40, tmp);
  894. pdev->class = PCI_CLASS_STORAGE_SATA_AHCI;
  895. dev_info(&pdev->dev, "set SATA to AHCI mode\n");
  896. }
  897. }
  898. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
  899. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode);
  900. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
  901. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode);
  902. /*
  903. * Serverworks CSB5 IDE does not fully support native mode
  904. */
  905. static void __devinit quirk_svwks_csb5ide(struct pci_dev *pdev)
  906. {
  907. u8 prog;
  908. pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
  909. if (prog & 5) {
  910. prog &= ~5;
  911. pdev->class &= ~5;
  912. pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
  913. /* PCI layer will sort out resources */
  914. }
  915. }
  916. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide);
  917. /*
  918. * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same
  919. */
  920. static void __init quirk_ide_samemode(struct pci_dev *pdev)
  921. {
  922. u8 prog;
  923. pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
  924. if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) {
  925. dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n");
  926. prog &= ~5;
  927. pdev->class &= ~5;
  928. pci_write_config_byte(pdev, PCI_CLASS_PROG, prog);
  929. }
  930. }
  931. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode);
  932. /*
  933. * Some ATA devices break if put into D3
  934. */
  935. static void __devinit quirk_no_ata_d3(struct pci_dev *pdev)
  936. {
  937. /* Quirk the legacy ATA devices only. The AHCI ones are ok */
  938. if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE)
  939. pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
  940. }
  941. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, quirk_no_ata_d3);
  942. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_no_ata_d3);
  943. /* This was originally an Alpha specific thing, but it really fits here.
  944. * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
  945. */
  946. static void __init quirk_eisa_bridge(struct pci_dev *dev)
  947. {
  948. dev->class = PCI_CLASS_BRIDGE_EISA << 8;
  949. }
  950. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge);
  951. /*
  952. * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
  953. * is not activated. The myth is that Asus said that they do not want the
  954. * users to be irritated by just another PCI Device in the Win98 device
  955. * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
  956. * package 2.7.0 for details)
  957. *
  958. * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
  959. * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
  960. * becomes necessary to do this tweak in two steps -- the chosen trigger
  961. * is either the Host bridge (preferred) or on-board VGA controller.
  962. *
  963. * Note that we used to unhide the SMBus that way on Toshiba laptops
  964. * (Satellite A40 and Tecra M2) but then found that the thermal management
  965. * was done by SMM code, which could cause unsynchronized concurrent
  966. * accesses to the SMBus registers, with potentially bad effects. Thus you
  967. * should be very careful when adding new entries: if SMM is accessing the
  968. * Intel SMBus, this is a very good reason to leave it hidden.
  969. *
  970. * Likewise, many recent laptops use ACPI for thermal management. If the
  971. * ACPI DSDT code accesses the SMBus, then Linux should not access it
  972. * natively, and keeping the SMBus hidden is the right thing to do. If you
  973. * are about to add an entry in the table below, please first disassemble
  974. * the DSDT and double-check that there is no code accessing the SMBus.
  975. */
  976. static int asus_hides_smbus;
  977. static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
  978. {
  979. if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
  980. if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB)
  981. switch(dev->subsystem_device) {
  982. case 0x8025: /* P4B-LX */
  983. case 0x8070: /* P4B */
  984. case 0x8088: /* P4B533 */
  985. case 0x1626: /* L3C notebook */
  986. asus_hides_smbus = 1;
  987. }
  988. else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB)
  989. switch(dev->subsystem_device) {
  990. case 0x80b1: /* P4GE-V */
  991. case 0x80b2: /* P4PE */
  992. case 0x8093: /* P4B533-V */
  993. asus_hides_smbus = 1;
  994. }
  995. else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB)
  996. switch(dev->subsystem_device) {
  997. case 0x8030: /* P4T533 */
  998. asus_hides_smbus = 1;
  999. }
  1000. else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0)
  1001. switch (dev->subsystem_device) {
  1002. case 0x8070: /* P4G8X Deluxe */
  1003. asus_hides_smbus = 1;
  1004. }
  1005. else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH)
  1006. switch (dev->subsystem_device) {
  1007. case 0x80c9: /* PU-DLS */
  1008. asus_hides_smbus = 1;
  1009. }
  1010. else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB)
  1011. switch (dev->subsystem_device) {
  1012. case 0x1751: /* M2N notebook */
  1013. case 0x1821: /* M5N notebook */
  1014. asus_hides_smbus = 1;
  1015. }
  1016. else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
  1017. switch (dev->subsystem_device) {
  1018. case 0x184b: /* W1N notebook */
  1019. case 0x186a: /* M6Ne notebook */
  1020. asus_hides_smbus = 1;
  1021. }
  1022. else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
  1023. switch (dev->subsystem_device) {
  1024. case 0x80f2: /* P4P800-X */
  1025. asus_hides_smbus = 1;
  1026. }
  1027. else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
  1028. switch (dev->subsystem_device) {
  1029. case 0x1882: /* M6V notebook */
  1030. case 0x1977: /* A6VA notebook */
  1031. asus_hides_smbus = 1;
  1032. }
  1033. } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) {
  1034. if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
  1035. switch(dev->subsystem_device) {
  1036. case 0x088C: /* HP Compaq nc8000 */
  1037. case 0x0890: /* HP Compaq nc6000 */
  1038. asus_hides_smbus = 1;
  1039. }
  1040. else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB)
  1041. switch (dev->subsystem_device) {
  1042. case 0x12bc: /* HP D330L */
  1043. case 0x12bd: /* HP D530 */
  1044. asus_hides_smbus = 1;
  1045. }
  1046. else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB)
  1047. switch (dev->subsystem_device) {
  1048. case 0x12bf: /* HP xw4100 */
  1049. asus_hides_smbus = 1;
  1050. }
  1051. } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
  1052. if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
  1053. switch(dev->subsystem_device) {
  1054. case 0xC00C: /* Samsung P35 notebook */
  1055. asus_hides_smbus = 1;
  1056. }
  1057. } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) {
  1058. if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB)
  1059. switch(dev->subsystem_device) {
  1060. case 0x0058: /* Compaq Evo N620c */
  1061. asus_hides_smbus = 1;
  1062. }
  1063. else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
  1064. switch(dev->subsystem_device) {
  1065. case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
  1066. /* Motherboard doesn't have Host bridge
  1067. * subvendor/subdevice IDs, therefore checking
  1068. * its on-board VGA controller */
  1069. asus_hides_smbus = 1;
  1070. }
  1071. else if (dev->device == PCI_DEVICE_ID_INTEL_82801DB_2)
  1072. switch(dev->subsystem_device) {
  1073. case 0x00b8: /* Compaq Evo D510 CMT */
  1074. case 0x00b9: /* Compaq Evo D510 SFF */
  1075. /* Motherboard doesn't have Host bridge
  1076. * subvendor/subdevice IDs and on-board VGA
  1077. * controller is disabled if an AGP card is
  1078. * inserted, therefore checking USB UHCI
  1079. * Controller #1 */
  1080. asus_hides_smbus = 1;
  1081. }
  1082. else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC)
  1083. switch (dev->subsystem_device) {
  1084. case 0x001A: /* Compaq Deskpro EN SSF P667 815E */
  1085. /* Motherboard doesn't have host bridge
  1086. * subvendor/subdevice IDs, therefore checking
  1087. * its on-board VGA controller */
  1088. asus_hides_smbus = 1;
  1089. }
  1090. }
  1091. }
  1092. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge);
  1093. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge);
  1094. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge);
  1095. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge);
  1096. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge);
  1097. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge);
  1098. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge);
  1099. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge);
  1100. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge);
  1101. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge);
  1102. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge);
  1103. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_2, asus_hides_smbus_hostbridge);
  1104. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge);
  1105. static void asus_hides_smbus_lpc(struct pci_dev *dev)
  1106. {
  1107. u16 val;
  1108. if (likely(!asus_hides_smbus))
  1109. return;
  1110. pci_read_config_word(dev, 0xF2, &val);
  1111. if (val & 0x8) {
  1112. pci_write_config_word(dev, 0xF2, val & (~0x8));
  1113. pci_read_config_word(dev, 0xF2, &val);
  1114. if (val & 0x8)
  1115. dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val);
  1116. else
  1117. dev_info(&dev->dev, "Enabled i801 SMBus device\n");
  1118. }
  1119. }
  1120. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
  1121. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
  1122. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
  1123. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
  1124. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
  1125. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
  1126. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
  1127. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc);
  1128. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc);
  1129. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc);
  1130. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc);
  1131. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc);
  1132. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc);
  1133. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc);
  1134. /* It appears we just have one such device. If not, we have a warning */
  1135. static void __iomem *asus_rcba_base;
  1136. static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev)
  1137. {
  1138. u32 rcba;
  1139. if (likely(!asus_hides_smbus))
  1140. return;
  1141. WARN_ON(asus_rcba_base);
  1142. pci_read_config_dword(dev, 0xF0, &rcba);
  1143. /* use bits 31:14, 16 kB aligned */
  1144. asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000);
  1145. if (asus_rcba_base == NULL)
  1146. return;
  1147. }
  1148. static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev)
  1149. {
  1150. u32 val;
  1151. if (likely(!asus_hides_smbus || !asus_rcba_base))
  1152. return;
  1153. /* read the Function Disable register, dword mode only */
  1154. val = readl(asus_rcba_base + 0x3418);
  1155. writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */
  1156. }
  1157. static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev)
  1158. {
  1159. if (likely(!asus_hides_smbus || !asus_rcba_base))
  1160. return;
  1161. iounmap(asus_rcba_base);
  1162. asus_rcba_base = NULL;
  1163. dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n");
  1164. }
  1165. static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
  1166. {
  1167. asus_hides_smbus_lpc_ich6_suspend(dev);
  1168. asus_hides_smbus_lpc_ich6_resume_early(dev);
  1169. asus_hides_smbus_lpc_ich6_resume(dev);
  1170. }
  1171. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6);
  1172. DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend);
  1173. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume);
  1174. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early);
  1175. /*
  1176. * SiS 96x south bridge: BIOS typically hides SMBus device...
  1177. */
  1178. static void quirk_sis_96x_smbus(struct pci_dev *dev)
  1179. {
  1180. u8 val = 0;
  1181. pci_read_config_byte(dev, 0x77, &val);
  1182. if (val & 0x10) {
  1183. dev_info(&dev->dev, "Enabling SiS 96x SMBus\n");
  1184. pci_write_config_byte(dev, 0x77, val & ~0x10);
  1185. }
  1186. }
  1187. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
  1188. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
  1189. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
  1190. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
  1191. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus);
  1192. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus);
  1193. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus);
  1194. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus);
  1195. /*
  1196. * ... This is further complicated by the fact that some SiS96x south
  1197. * bridges pretend to be 85C503/5513 instead. In that case see if we
  1198. * spotted a compatible north bridge to make sure.
  1199. * (pci_find_device doesn't work yet)
  1200. *
  1201. * We can also enable the sis96x bit in the discovery register..
  1202. */
  1203. #define SIS_DETECT_REGISTER 0x40
  1204. static void quirk_sis_503(struct pci_dev *dev)
  1205. {
  1206. u8 reg;
  1207. u16 devid;
  1208. pci_read_config_byte(dev, SIS_DETECT_REGISTER, &reg);
  1209. pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6));
  1210. pci_read_config_word(dev, PCI_DEVICE_ID, &devid);
  1211. if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) {
  1212. pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg);
  1213. return;
  1214. }
  1215. /*
  1216. * Ok, it now shows up as a 96x.. run the 96x quirk by
  1217. * hand in case it has already been processed.
  1218. * (depends on link order, which is apparently not guaranteed)
  1219. */
  1220. dev->device = devid;
  1221. quirk_sis_96x_smbus(dev);
  1222. }
  1223. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
  1224. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503);
  1225. /*
  1226. * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
  1227. * and MC97 modem controller are disabled when a second PCI soundcard is
  1228. * present. This patch, tweaking the VT8237 ISA bridge, enables them.
  1229. * -- bjd
  1230. */
  1231. static void asus_hides_ac97_lpc(struct pci_dev *dev)
  1232. {
  1233. u8 val;
  1234. int asus_hides_ac97 = 0;
  1235. if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) {
  1236. if (dev->device == PCI_DEVICE_ID_VIA_8237)
  1237. asus_hides_ac97 = 1;
  1238. }
  1239. if (!asus_hides_ac97)
  1240. return;
  1241. pci_read_config_byte(dev, 0x50, &val);
  1242. if (val & 0xc0) {
  1243. pci_write_config_byte(dev, 0x50, val & (~0xc0));
  1244. pci_read_config_byte(dev, 0x50, &val);
  1245. if (val & 0xc0)
  1246. dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val);
  1247. else
  1248. dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n");
  1249. }
  1250. }
  1251. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
  1252. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc);
  1253. #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE)
  1254. /*
  1255. * If we are using libata we can drive this chip properly but must
  1256. * do this early on to make the additional device appear during
  1257. * the PCI scanning.
  1258. */
  1259. static void quirk_jmicron_ata(struct pci_dev *pdev)
  1260. {
  1261. u32 conf1, conf5, class;
  1262. u8 hdr;
  1263. /* Only poke fn 0 */
  1264. if (PCI_FUNC(pdev->devfn))
  1265. return;
  1266. pci_read_config_dword(pdev, 0x40, &conf1);
  1267. pci_read_config_dword(pdev, 0x80, &conf5);
  1268. conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */
  1269. conf5 &= ~(1 << 24); /* Clear bit 24 */
  1270. switch (pdev->device) {
  1271. case PCI_DEVICE_ID_JMICRON_JMB360:
  1272. /* The controller should be in single function ahci mode */
  1273. conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */
  1274. break;
  1275. case PCI_DEVICE_ID_JMICRON_JMB365:
  1276. case PCI_DEVICE_ID_JMICRON_JMB366:
  1277. /* Redirect IDE second PATA port to the right spot */
  1278. conf5 |= (1 << 24);
  1279. /* Fall through */
  1280. case PCI_DEVICE_ID_JMICRON_JMB361:
  1281. case PCI_DEVICE_ID_JMICRON_JMB363:
  1282. /* Enable dual function mode, AHCI on fn 0, IDE fn1 */
  1283. /* Set the class codes correctly and then direct IDE 0 */
  1284. conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */
  1285. break;
  1286. case PCI_DEVICE_ID_JMICRON_JMB368:
  1287. /* The controller should be in single function IDE mode */
  1288. conf1 |= 0x00C00000; /* Set 22, 23 */
  1289. break;
  1290. }
  1291. pci_write_config_dword(pdev, 0x40, conf1);
  1292. pci_write_config_dword(pdev, 0x80, conf5);
  1293. /* Update pdev accordingly */
  1294. pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr);
  1295. pdev->hdr_type = hdr & 0x7f;
  1296. pdev->multifunction = !!(hdr & 0x80);
  1297. pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class);
  1298. pdev->class = class >> 8;
  1299. }
  1300. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
  1301. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
  1302. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
  1303. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
  1304. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
  1305. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
  1306. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata);
  1307. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata);
  1308. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata);
  1309. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata);
  1310. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata);
  1311. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata);
  1312. #endif
  1313. #ifdef CONFIG_X86_IO_APIC
  1314. static void __init quirk_alder_ioapic(struct pci_dev *pdev)
  1315. {
  1316. int i;
  1317. if ((pdev->class >> 8) != 0xff00)
  1318. return;
  1319. /* the first BAR is the location of the IO APIC...we must
  1320. * not touch this (and it's already covered by the fixmap), so
  1321. * forcibly insert it into the resource tree */
  1322. if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0))
  1323. insert_resource(&iomem_resource, &pdev->resource[0]);
  1324. /* The next five BARs all seem to be rubbish, so just clean
  1325. * them out */
  1326. for (i=1; i < 6; i++) {
  1327. memset(&pdev->resource[i], 0, sizeof(pdev->resource[i]));
  1328. }
  1329. }
  1330. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic);
  1331. #endif
  1332. static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
  1333. {
  1334. pcie_mch_quirk = 1;
  1335. }
  1336. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch);
  1337. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch);
  1338. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch);
  1339. /*
  1340. * It's possible for the MSI to get corrupted if shpc and acpi
  1341. * are used together on certain PXH-based systems.
  1342. */
  1343. static void __devinit quirk_pcie_pxh(struct pci_dev *dev)
  1344. {
  1345. pci_msi_off(dev);
  1346. dev->no_msi = 1;
  1347. dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n");
  1348. }
  1349. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh);
  1350. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh);
  1351. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh);
  1352. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh);
  1353. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh);
  1354. /*
  1355. * Some Intel PCI Express chipsets have trouble with downstream
  1356. * device power management.
  1357. */
  1358. static void quirk_intel_pcie_pm(struct pci_dev * dev)
  1359. {
  1360. pci_pm_d3_delay = 120;
  1361. dev->no_d1d2 = 1;
  1362. }
  1363. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm);
  1364. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm);
  1365. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm);
  1366. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm);
  1367. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm);
  1368. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm);
  1369. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm);
  1370. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm);
  1371. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm);
  1372. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm);
  1373. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm);
  1374. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm);
  1375. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm);
  1376. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm);
  1377. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm);
  1378. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm);
  1379. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm);
  1380. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm);
  1381. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
  1382. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
  1383. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
  1384. #ifdef CONFIG_X86_IO_APIC
  1385. /*
  1386. * Boot interrupts on some chipsets cannot be turned off. For these chipsets,
  1387. * remap the original interrupt in the linux kernel to the boot interrupt, so
  1388. * that a PCI device's interrupt handler is installed on the boot interrupt
  1389. * line instead.
  1390. */
  1391. static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev)
  1392. {
  1393. if (noioapicquirk || noioapicreroute)
  1394. return;
  1395. dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT;
  1396. printk(KERN_INFO "PCI quirk: reroute interrupts for 0x%04x:0x%04x\n",
  1397. dev->vendor, dev->device);
  1398. return;
  1399. }
  1400. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
  1401. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
  1402. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
  1403. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
  1404. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
  1405. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
  1406. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
  1407. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
  1408. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel);
  1409. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel);
  1410. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel);
  1411. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel);
  1412. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel);
  1413. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel);
  1414. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel);
  1415. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel);
  1416. /*
  1417. * On some chipsets we can disable the generation of legacy INTx boot
  1418. * interrupts.
  1419. */
  1420. /*
  1421. * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no
  1422. * 300641-004US, section 5.7.3.
  1423. */
  1424. #define INTEL_6300_IOAPIC_ABAR 0x40
  1425. #define INTEL_6300_DISABLE_BOOT_IRQ (1<<14)
  1426. static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
  1427. {
  1428. u16 pci_config_word;
  1429. if (noioapicquirk)
  1430. return;
  1431. pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word);
  1432. pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ;
  1433. pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word);
  1434. printk(KERN_INFO "disabled boot interrupt on device 0x%04x:0x%04x\n",
  1435. dev->vendor, dev->device);
  1436. }
  1437. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
  1438. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt);
  1439. /*
  1440. * disable boot interrupts on HT-1000
  1441. */
  1442. #define BC_HT1000_FEATURE_REG 0x64
  1443. #define BC_HT1000_PIC_REGS_ENABLE (1<<0)
  1444. #define BC_HT1000_MAP_IDX 0xC00
  1445. #define BC_HT1000_MAP_DATA 0xC01
  1446. static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
  1447. {
  1448. u32 pci_config_dword;
  1449. u8 irq;
  1450. if (noioapicquirk)
  1451. return;
  1452. pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword);
  1453. pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword |
  1454. BC_HT1000_PIC_REGS_ENABLE);
  1455. for (irq = 0x10; irq < 0x10 + 32; irq++) {
  1456. outb(irq, BC_HT1000_MAP_IDX);
  1457. outb(0x00, BC_HT1000_MAP_DATA);
  1458. }
  1459. pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword);
  1460. printk(KERN_INFO "disabled boot interrupts on PCI device"
  1461. "0x%04x:0x%04x\n", dev->vendor, dev->device);
  1462. }
  1463. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
  1464. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt);
  1465. /*
  1466. * disable boot interrupts on AMD and ATI chipsets
  1467. */
  1468. /*
  1469. * NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131
  1470. * rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode
  1471. * (due to an erratum).
  1472. */
  1473. #define AMD_813X_MISC 0x40
  1474. #define AMD_813X_NOIOAMODE (1<<0)
  1475. #define AMD_813X_REV_B2 0x13
  1476. static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
  1477. {
  1478. u32 pci_config_dword;
  1479. if (noioapicquirk)
  1480. return;
  1481. if (dev->revision == AMD_813X_REV_B2)
  1482. return;
  1483. pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
  1484. pci_config_dword &= ~AMD_813X_NOIOAMODE;
  1485. pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword);
  1486. printk(KERN_INFO "disabled boot interrupts on PCI device "
  1487. "0x%04x:0x%04x\n", dev->vendor, dev->device);
  1488. }
  1489. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
  1490. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
  1491. #define AMD_8111_PCI_IRQ_ROUTING 0x56
  1492. static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev)
  1493. {
  1494. u16 pci_config_word;
  1495. if (noioapicquirk)
  1496. return;
  1497. pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word);
  1498. if (!pci_config_word) {
  1499. printk(KERN_INFO "boot interrupts on PCI device 0x%04x:0x%04x "
  1500. "already disabled\n",
  1501. dev->vendor, dev->device);
  1502. return;
  1503. }
  1504. pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0);
  1505. printk(KERN_INFO "disabled boot interrupts on PCI device "
  1506. "0x%04x:0x%04x\n", dev->vendor, dev->device);
  1507. }
  1508. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
  1509. DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt);
  1510. #endif /* CONFIG_X86_IO_APIC */
  1511. /*
  1512. * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size
  1513. * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes.
  1514. * Re-allocate the region if needed...
  1515. */
  1516. static void __init quirk_tc86c001_ide(struct pci_dev *dev)
  1517. {
  1518. struct resource *r = &dev->resource[0];
  1519. if (r->start & 0x8) {
  1520. r->start = 0;
  1521. r->end = 0xf;
  1522. }
  1523. }
  1524. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2,
  1525. PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
  1526. quirk_tc86c001_ide);
  1527. static void __devinit quirk_netmos(struct pci_dev *dev)
  1528. {
  1529. unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
  1530. unsigned int num_serial = dev->subsystem_device & 0xf;
  1531. /*
  1532. * These Netmos parts are multiport serial devices with optional
  1533. * parallel ports. Even when parallel ports are present, they
  1534. * are identified as class SERIAL, which means the serial driver
  1535. * will claim them. To prevent this, mark them as class OTHER.
  1536. * These combo devices should be claimed by parport_serial.
  1537. *
  1538. * The subdevice ID is of the form 0x00PS, where <P> is the number
  1539. * of parallel ports and <S> is the number of serial ports.
  1540. */
  1541. switch (dev->device) {
  1542. case PCI_DEVICE_ID_NETMOS_9835:
  1543. /* Well, this rule doesn't hold for the following 9835 device */
  1544. if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
  1545. dev->subsystem_device == 0x0299)
  1546. return;
  1547. case PCI_DEVICE_ID_NETMOS_9735:
  1548. case PCI_DEVICE_ID_NETMOS_9745:
  1549. case PCI_DEVICE_ID_NETMOS_9845:
  1550. case PCI_DEVICE_ID_NETMOS_9855:
  1551. if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
  1552. num_parallel) {
  1553. dev_info(&dev->dev, "Netmos %04x (%u parallel, "
  1554. "%u serial); changing class SERIAL to OTHER "
  1555. "(use parport_serial)\n",
  1556. dev->device, num_parallel, num_serial);
  1557. dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) |
  1558. (dev->class & 0xff);
  1559. }
  1560. }
  1561. }
  1562. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
  1563. static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
  1564. {
  1565. u16 command, pmcsr;
  1566. u8 __iomem *csr;
  1567. u8 cmd_hi;
  1568. int pm;
  1569. switch (dev->device) {
  1570. /* PCI IDs taken from drivers/net/e100.c */
  1571. case 0x1029:
  1572. case 0x1030 ... 0x1034:
  1573. case 0x1038 ... 0x103E:
  1574. case 0x1050 ... 0x1057:
  1575. case 0x1059:
  1576. case 0x1064 ... 0x106B:
  1577. case 0x1091 ... 0x1095:
  1578. case 0x1209:
  1579. case 0x1229:
  1580. case 0x2449:
  1581. case 0x2459:
  1582. case 0x245D:
  1583. case 0x27DC:
  1584. break;
  1585. default:
  1586. return;
  1587. }
  1588. /*
  1589. * Some firmware hands off the e100 with interrupts enabled,
  1590. * which can cause a flood of interrupts if packets are
  1591. * received before the driver attaches to the device. So
  1592. * disable all e100 interrupts here. The driver will
  1593. * re-enable them when it's ready.
  1594. */
  1595. pci_read_config_word(dev, PCI_COMMAND, &command);
  1596. if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
  1597. return;
  1598. /*
  1599. * Check that the device is in the D0 power state. If it's not,
  1600. * there is no point to look any further.
  1601. */
  1602. pm = pci_find_capability(dev, PCI_CAP_ID_PM);
  1603. if (pm) {
  1604. pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
  1605. if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0)
  1606. return;
  1607. }
  1608. /* Convert from PCI bus to resource space. */
  1609. csr = ioremap(pci_resource_start(dev, 0), 8);
  1610. if (!csr) {
  1611. dev_warn(&dev->dev, "Can't map e100 registers\n");
  1612. return;
  1613. }
  1614. cmd_hi = readb(csr + 3);
  1615. if (cmd_hi == 0) {
  1616. dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; "
  1617. "disabling\n");
  1618. writeb(1, csr + 3);
  1619. }
  1620. iounmap(csr);
  1621. }
  1622. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
  1623. /*
  1624. * The 82575 and 82598 may experience data corruption issues when transitioning
  1625. * out of L0S. To prevent this we need to disable L0S on the pci-e link
  1626. */
  1627. static void __devinit quirk_disable_aspm_l0s(struct pci_dev *dev)
  1628. {
  1629. dev_info(&dev->dev, "Disabling L0s\n");
  1630. pci_disable_link_state(dev, PCIE_LINK_STATE_L0S);
  1631. }
  1632. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s);
  1633. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s);
  1634. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s);
  1635. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s);
  1636. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s);
  1637. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s);
  1638. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s);
  1639. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s);
  1640. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s);
  1641. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s);
  1642. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s);
  1643. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s);
  1644. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s);
  1645. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s);
  1646. static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
  1647. {
  1648. /* rev 1 ncr53c810 chips don't set the class at all which means
  1649. * they don't get their resources remapped. Fix that here.
  1650. */
  1651. if (dev->class == PCI_CLASS_NOT_DEFINED) {
  1652. dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n");
  1653. dev->class = PCI_CLASS_STORAGE_SCSI;
  1654. }
  1655. }
  1656. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
  1657. /* Enable 1k I/O space granularity on the Intel P64H2 */
  1658. static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
  1659. {
  1660. u16 en1k;
  1661. u8 io_base_lo, io_limit_lo;
  1662. unsigned long base, limit;
  1663. struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
  1664. pci_read_config_word(dev, 0x40, &en1k);
  1665. if (en1k & 0x200) {
  1666. dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n");
  1667. pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
  1668. pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);
  1669. base = (io_base_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
  1670. limit = (io_limit_lo & (PCI_IO_RANGE_MASK | 0x0c)) << 8;
  1671. if (base <= limit) {
  1672. res->start = base;
  1673. res->end = limit + 0x3ff;
  1674. }
  1675. }
  1676. }
  1677. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
  1678. /* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2
  1679. * The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge()
  1680. * in drivers/pci/setup-bus.c
  1681. */
  1682. static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev)
  1683. {
  1684. u16 en1k, iobl_adr, iobl_adr_1k;
  1685. struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES;
  1686. pci_read_config_word(dev, 0x40, &en1k);
  1687. if (en1k & 0x200) {
  1688. pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr);
  1689. iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00);
  1690. if (iobl_adr != iobl_adr_1k) {
  1691. dev_info(&dev->dev, "Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1KB granularity\n",
  1692. iobl_adr,iobl_adr_1k);
  1693. pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k);
  1694. }
  1695. }
  1696. }
  1697. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl);
  1698. /* Under some circumstances, AER is not linked with extended capabilities.
  1699. * Force it to be linked by setting the corresponding control bit in the
  1700. * config space.
  1701. */
  1702. static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
  1703. {
  1704. uint8_t b;
  1705. if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
  1706. if (!(b & 0x20)) {
  1707. pci_write_config_byte(dev, 0xf41, b | 0x20);
  1708. dev_info(&dev->dev,
  1709. "Linking AER extended capability\n");
  1710. }
  1711. }
  1712. }
  1713. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
  1714. quirk_nvidia_ck804_pcie_aer_ext_cap);
  1715. DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
  1716. quirk_nvidia_ck804_pcie_aer_ext_cap);
  1717. static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev)
  1718. {
  1719. /*
  1720. * Disable PCI Bus Parking and PCI Master read caching on CX700
  1721. * which causes unspecified timing errors with a VT6212L on the PCI
  1722. * bus leading to USB2.0 packet loss. The defaults are that these
  1723. * features are turned off but some BIOSes turn them on.
  1724. */
  1725. uint8_t b;
  1726. if (pci_read_config_byte(dev, 0x76, &b) == 0) {
  1727. if (b & 0x40) {
  1728. /* Turn off PCI Bus Parking */
  1729. pci_write_config_byte(dev, 0x76, b ^ 0x40);
  1730. dev_info(&dev->dev,
  1731. "Disabling VIA CX700 PCI parking\n");
  1732. }
  1733. }
  1734. if (pci_read_config_byte(dev, 0x72, &b) == 0) {
  1735. if (b != 0) {
  1736. /* Turn off PCI Master read caching */
  1737. pci_write_config_byte(dev, 0x72, 0x0);
  1738. /* Set PCI Master Bus time-out to "1x16 PCLK" */
  1739. pci_write_config_byte(dev, 0x75, 0x1);
  1740. /* Disable "Read FIFO Timer" */
  1741. pci_write_config_byte(dev, 0x77, 0x0);
  1742. dev_info(&dev->dev,
  1743. "Disabling VIA CX700 PCI caching\n");
  1744. }
  1745. }
  1746. }
  1747. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching);
  1748. /*
  1749. * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
  1750. * VPD end tag will hang the device. This problem was initially
  1751. * observed when a vpd entry was created in sysfs
  1752. * ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry
  1753. * will dump 32k of data. Reading a full 32k will cause an access
  1754. * beyond the VPD end tag causing the device to hang. Once the device
  1755. * is hung, the bnx2 driver will not be able to reset the device.
  1756. * We believe that it is legal to read beyond the end tag and
  1757. * therefore the solution is to limit the read/write length.
  1758. */
  1759. static void __devinit quirk_brcm_570x_limit_vpd(struct pci_dev *dev)
  1760. {
  1761. /*
  1762. * Only disable the VPD capability for 5706, 5706S, 5708,
  1763. * 5708S and 5709 rev. A
  1764. */
  1765. if ((dev->device == PCI_DEVICE_ID_NX2_5706) ||
  1766. (dev->device == PCI_DEVICE_ID_NX2_5706S) ||
  1767. (dev->device == PCI_DEVICE_ID_NX2_5708) ||
  1768. (dev->device == PCI_DEVICE_ID_NX2_5708S) ||
  1769. ((dev->device == PCI_DEVICE_ID_NX2_5709) &&
  1770. (dev->revision & 0xf0) == 0x0)) {
  1771. if (dev->vpd)
  1772. dev->vpd->len = 0x80;
  1773. }
  1774. }
  1775. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1776. PCI_DEVICE_ID_NX2_5706,
  1777. quirk_brcm_570x_limit_vpd);
  1778. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1779. PCI_DEVICE_ID_NX2_5706S,
  1780. quirk_brcm_570x_limit_vpd);
  1781. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1782. PCI_DEVICE_ID_NX2_5708,
  1783. quirk_brcm_570x_limit_vpd);
  1784. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1785. PCI_DEVICE_ID_NX2_5708S,
  1786. quirk_brcm_570x_limit_vpd);
  1787. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1788. PCI_DEVICE_ID_NX2_5709,
  1789. quirk_brcm_570x_limit_vpd);
  1790. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  1791. PCI_DEVICE_ID_NX2_5709S,
  1792. quirk_brcm_570x_limit_vpd);
  1793. #ifdef CONFIG_PCI_MSI
  1794. /* Some chipsets do not support MSI. We cannot easily rely on setting
  1795. * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
  1796. * some other busses controlled by the chipset even if Linux is not
  1797. * aware of it. Instead of setting the flag on all busses in the
  1798. * machine, simply disable MSI globally.
  1799. */
  1800. static void __init quirk_disable_all_msi(struct pci_dev *dev)
  1801. {
  1802. pci_no_msi();
  1803. dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n");
  1804. }
  1805. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi);
  1806. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi);
  1807. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi);
  1808. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi);
  1809. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
  1810. /* Disable MSI on chipsets that are known to not support it */
  1811. static void __devinit quirk_disable_msi(struct pci_dev *dev)
  1812. {
  1813. if (dev->subordinate) {
  1814. dev_warn(&dev->dev, "MSI quirk detected; "
  1815. "subordinate MSI disabled\n");
  1816. dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
  1817. }
  1818. }
  1819. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
  1820. /* Go through the list of Hypertransport capabilities and
  1821. * return 1 if a HT MSI capability is found and enabled */
  1822. static int __devinit msi_ht_cap_enabled(struct pci_dev *dev)
  1823. {
  1824. int pos, ttl = 48;
  1825. pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  1826. while (pos && ttl--) {
  1827. u8 flags;
  1828. if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
  1829. &flags) == 0)
  1830. {
  1831. dev_info(&dev->dev, "Found %s HT MSI Mapping\n",
  1832. flags & HT_MSI_FLAGS_ENABLE ?
  1833. "enabled" : "disabled");
  1834. return (flags & HT_MSI_FLAGS_ENABLE) != 0;
  1835. }
  1836. pos = pci_find_next_ht_capability(dev, pos,
  1837. HT_CAPTYPE_MSI_MAPPING);
  1838. }
  1839. return 0;
  1840. }
  1841. /* Check the hypertransport MSI mapping to know whether MSI is enabled or not */
  1842. static void __devinit quirk_msi_ht_cap(struct pci_dev *dev)
  1843. {
  1844. if (dev->subordinate && !msi_ht_cap_enabled(dev)) {
  1845. dev_warn(&dev->dev, "MSI quirk detected; "
  1846. "subordinate MSI disabled\n");
  1847. dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
  1848. }
  1849. }
  1850. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE,
  1851. quirk_msi_ht_cap);
  1852. /* The nVidia CK804 chipset may have 2 HT MSI mappings.
  1853. * MSI are supported if the MSI capability set in any of these mappings.
  1854. */
  1855. static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
  1856. {
  1857. struct pci_dev *pdev;
  1858. if (!dev->subordinate)
  1859. return;
  1860. /* check HT MSI cap on this chipset and the root one.
  1861. * a single one having MSI is enough to be sure that MSI are supported.
  1862. */
  1863. pdev = pci_get_slot(dev->bus, 0);
  1864. if (!pdev)
  1865. return;
  1866. if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) {
  1867. dev_warn(&dev->dev, "MSI quirk detected; "
  1868. "subordinate MSI disabled\n");
  1869. dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
  1870. }
  1871. pci_dev_put(pdev);
  1872. }
  1873. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
  1874. quirk_nvidia_ck804_msi_ht_cap);
  1875. /* Force enable MSI mapping capability on HT bridges */
  1876. static void __devinit ht_enable_msi_mapping(struct pci_dev *dev)
  1877. {
  1878. int pos, ttl = 48;
  1879. pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  1880. while (pos && ttl--) {
  1881. u8 flags;
  1882. if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
  1883. &flags) == 0) {
  1884. dev_info(&dev->dev, "Enabling HT MSI Mapping\n");
  1885. pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
  1886. flags | HT_MSI_FLAGS_ENABLE);
  1887. }
  1888. pos = pci_find_next_ht_capability(dev, pos,
  1889. HT_CAPTYPE_MSI_MAPPING);
  1890. }
  1891. }
  1892. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
  1893. PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
  1894. ht_enable_msi_mapping);
  1895. DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE,
  1896. ht_enable_msi_mapping);
  1897. /* The P5N32-SLI Premium motherboard from Asus has a problem with msi
  1898. * for the MCP55 NIC. It is not yet determined whether the msi problem
  1899. * also affects other devices. As for now, turn off msi for this device.
  1900. */
  1901. static void __devinit nvenet_msi_disable(struct pci_dev *dev)
  1902. {
  1903. if (dmi_name_in_vendors("P5N32-SLI PREMIUM")) {
  1904. dev_info(&dev->dev,
  1905. "Disabling msi for MCP55 NIC on P5N32-SLI Premium\n");
  1906. dev->no_msi = 1;
  1907. }
  1908. }
  1909. DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
  1910. PCI_DEVICE_ID_NVIDIA_NVENET_15,
  1911. nvenet_msi_disable);
  1912. static void __devinit nv_ht_enable_msi_mapping(struct pci_dev *dev)
  1913. {
  1914. struct pci_dev *host_bridge;
  1915. int pos;
  1916. int i, dev_no;
  1917. int found = 0;
  1918. dev_no = dev->devfn >> 3;
  1919. for (i = dev_no; i >= 0; i--) {
  1920. host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0));
  1921. if (!host_bridge)
  1922. continue;
  1923. pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
  1924. if (pos != 0) {
  1925. found = 1;
  1926. break;
  1927. }
  1928. pci_dev_put(host_bridge);
  1929. }
  1930. if (!found)
  1931. return;
  1932. /* root did that ! */
  1933. if (msi_ht_cap_enabled(host_bridge))
  1934. goto out;
  1935. ht_enable_msi_mapping(dev);
  1936. out:
  1937. pci_dev_put(host_bridge);
  1938. }
  1939. static void __devinit ht_disable_msi_mapping(struct pci_dev *dev)
  1940. {
  1941. int pos, ttl = 48;
  1942. pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  1943. while (pos && ttl--) {
  1944. u8 flags;
  1945. if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
  1946. &flags) == 0) {
  1947. dev_info(&dev->dev, "Disabling HT MSI Mapping\n");
  1948. pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
  1949. flags & ~HT_MSI_FLAGS_ENABLE);
  1950. }
  1951. pos = pci_find_next_ht_capability(dev, pos,
  1952. HT_CAPTYPE_MSI_MAPPING);
  1953. }
  1954. }
  1955. static int __devinit ht_check_msi_mapping(struct pci_dev *dev)
  1956. {
  1957. int pos, ttl = 48;
  1958. int found = 0;
  1959. /* check if there is HT MSI cap or enabled on this device */
  1960. pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
  1961. while (pos && ttl--) {
  1962. u8 flags;
  1963. if (found < 1)
  1964. found = 1;
  1965. if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
  1966. &flags) == 0) {
  1967. if (flags & HT_MSI_FLAGS_ENABLE) {
  1968. if (found < 2) {
  1969. found = 2;
  1970. break;
  1971. }
  1972. }
  1973. }
  1974. pos = pci_find_next_ht_capability(dev, pos,
  1975. HT_CAPTYPE_MSI_MAPPING);
  1976. }
  1977. return found;
  1978. }
  1979. static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
  1980. {
  1981. struct pci_dev *host_bridge;
  1982. int pos;
  1983. int found;
  1984. /* Enabling HT MSI mapping on this device breaks MCP51 */
  1985. if (dev->device == 0x270)
  1986. return;
  1987. /* check if there is HT MSI cap or enabled on this device */
  1988. found = ht_check_msi_mapping(dev);
  1989. /* no HT MSI CAP */
  1990. if (found == 0)
  1991. return;
  1992. /*
  1993. * HT MSI mapping should be disabled on devices that are below
  1994. * a non-Hypertransport host bridge. Locate the host bridge...
  1995. */
  1996. host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
  1997. if (host_bridge == NULL) {
  1998. dev_warn(&dev->dev,
  1999. "nv_msi_ht_cap_quirk didn't locate host bridge\n");
  2000. return;
  2001. }
  2002. pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE);
  2003. if (pos != 0) {
  2004. /* Host bridge is to HT */
  2005. if (found == 1) {
  2006. /* it is not enabled, try to enable it */
  2007. nv_ht_enable_msi_mapping(dev);
  2008. }
  2009. return;
  2010. }
  2011. /* HT MSI is not enabled */
  2012. if (found == 1)
  2013. return;
  2014. /* Host bridge is not to HT, disable HT MSI mapping on this device */
  2015. ht_disable_msi_mapping(dev);
  2016. }
  2017. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk);
  2018. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk);
  2019. static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
  2020. {
  2021. dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
  2022. }
  2023. static void __devinit quirk_msi_intx_disable_ati_bug(struct pci_dev *dev)
  2024. {
  2025. struct pci_dev *p;
  2026. /* SB700 MSI issue will be fixed at HW level from revision A21,
  2027. * we need check PCI REVISION ID of SMBus controller to get SB700
  2028. * revision.
  2029. */
  2030. p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
  2031. NULL);
  2032. if (!p)
  2033. return;
  2034. if ((p->revision < 0x3B) && (p->revision >= 0x30))
  2035. dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG;
  2036. pci_dev_put(p);
  2037. }
  2038. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  2039. PCI_DEVICE_ID_TIGON3_5780,
  2040. quirk_msi_intx_disable_bug);
  2041. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  2042. PCI_DEVICE_ID_TIGON3_5780S,
  2043. quirk_msi_intx_disable_bug);
  2044. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  2045. PCI_DEVICE_ID_TIGON3_5714,
  2046. quirk_msi_intx_disable_bug);
  2047. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  2048. PCI_DEVICE_ID_TIGON3_5714S,
  2049. quirk_msi_intx_disable_bug);
  2050. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  2051. PCI_DEVICE_ID_TIGON3_5715,
  2052. quirk_msi_intx_disable_bug);
  2053. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM,
  2054. PCI_DEVICE_ID_TIGON3_5715S,
  2055. quirk_msi_intx_disable_bug);
  2056. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390,
  2057. quirk_msi_intx_disable_ati_bug);
  2058. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391,
  2059. quirk_msi_intx_disable_ati_bug);
  2060. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392,
  2061. quirk_msi_intx_disable_ati_bug);
  2062. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393,
  2063. quirk_msi_intx_disable_ati_bug);
  2064. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394,
  2065. quirk_msi_intx_disable_ati_bug);
  2066. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373,
  2067. quirk_msi_intx_disable_bug);
  2068. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
  2069. quirk_msi_intx_disable_bug);
  2070. DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
  2071. quirk_msi_intx_disable_bug);
  2072. #endif /* CONFIG_PCI_MSI */
  2073. static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
  2074. struct pci_fixup *end)
  2075. {
  2076. while (f < end) {
  2077. if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
  2078. (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
  2079. dev_dbg(&dev->dev, "calling %pF\n", f->hook);
  2080. f->hook(dev);
  2081. }
  2082. f++;
  2083. }
  2084. }
  2085. extern struct pci_fixup __start_pci_fixups_early[];
  2086. extern struct pci_fixup __end_pci_fixups_early[];
  2087. extern struct pci_fixup __start_pci_fixups_header[];
  2088. extern struct pci_fixup __end_pci_fixups_header[];
  2089. extern struct pci_fixup __start_pci_fixups_final[];
  2090. extern struct pci_fixup __end_pci_fixups_final[];
  2091. extern struct pci_fixup __start_pci_fixups_enable[];
  2092. extern struct pci_fixup __end_pci_fixups_enable[];
  2093. extern struct pci_fixup __start_pci_fixups_resume[];
  2094. extern struct pci_fixup __end_pci_fixups_resume[];
  2095. extern struct pci_fixup __start_pci_fixups_resume_early[];
  2096. extern struct pci_fixup __end_pci_fixups_resume_early[];
  2097. extern struct pci_fixup __start_pci_fixups_suspend[];
  2098. extern struct pci_fixup __end_pci_fixups_suspend[];
  2099. void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
  2100. {
  2101. struct pci_fixup *start, *end;
  2102. switch(pass) {
  2103. case pci_fixup_early:
  2104. start = __start_pci_fixups_early;
  2105. end = __end_pci_fixups_early;
  2106. break;
  2107. case pci_fixup_header:
  2108. start = __start_pci_fixups_header;
  2109. end = __end_pci_fixups_header;
  2110. break;
  2111. case pci_fixup_final:
  2112. start = __start_pci_fixups_final;
  2113. end = __end_pci_fixups_final;
  2114. break;
  2115. case pci_fixup_enable:
  2116. start = __start_pci_fixups_enable;
  2117. end = __end_pci_fixups_enable;
  2118. break;
  2119. case pci_fixup_resume:
  2120. start = __start_pci_fixups_resume;
  2121. end = __end_pci_fixups_resume;
  2122. break;
  2123. case pci_fixup_resume_early:
  2124. start = __start_pci_fixups_resume_early;
  2125. end = __end_pci_fixups_resume_early;
  2126. break;
  2127. case pci_fixup_suspend:
  2128. start = __start_pci_fixups_suspend;
  2129. end = __end_pci_fixups_suspend;
  2130. break;
  2131. default:
  2132. /* stupid compiler warning, you would think with an enum... */
  2133. return;
  2134. }
  2135. pci_do_fixups(dev, start, end);
  2136. }
  2137. #else
  2138. void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) {}
  2139. #endif
  2140. EXPORT_SYMBOL(pci_fixup_device);