Commit | Line | Data |
---|---|---|
1da177e4 LT |
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 | * | |
7586269c DB |
10 | * Init/reset quirks for USB host controllers should be in the |
11 | * USB quirks file, where their drivers can access reuse it. | |
1da177e4 LT |
12 | */ |
13 | ||
1da177e4 LT |
14 | #include <linux/types.h> |
15 | #include <linux/kernel.h> | |
363c75db | 16 | #include <linux/export.h> |
1da177e4 LT |
17 | #include <linux/pci.h> |
18 | #include <linux/init.h> | |
19 | #include <linux/delay.h> | |
25be5e6c | 20 | #include <linux/acpi.h> |
9f23ed3b | 21 | #include <linux/kallsyms.h> |
75e07fc3 | 22 | #include <linux/dmi.h> |
649426ef | 23 | #include <linux/pci-aspm.h> |
32a9a682 | 24 | #include <linux/ioport.h> |
3209874a AV |
25 | #include <linux/sched.h> |
26 | #include <linux/ktime.h> | |
93177a74 | 27 | #include <asm/dma.h> /* isa_dma_bridge_buggy */ |
bc56b9e0 | 28 | #include "pci.h" |
1da177e4 | 29 | |
253d2e54 JP |
30 | /* |
31 | * Decoding should be disabled for a PCI device during BAR sizing to avoid | |
32 | * conflict. But doing so may cause problems on host bridge and perhaps other | |
33 | * key system devices. For devices that need to have mmio decoding always-on, | |
34 | * we need to set the dev->mmio_always_on bit. | |
35 | */ | |
15856ad5 | 36 | static void quirk_mmio_always_on(struct pci_dev *dev) |
253d2e54 | 37 | { |
52d21b5e | 38 | dev->mmio_always_on = 1; |
253d2e54 | 39 | } |
52d21b5e YL |
40 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_ANY_ID, PCI_ANY_ID, |
41 | PCI_CLASS_BRIDGE_HOST, 8, quirk_mmio_always_on); | |
253d2e54 | 42 | |
bd8481e1 DT |
43 | /* The Mellanox Tavor device gives false positive parity errors |
44 | * Mark this device with a broken_parity_status, to allow | |
45 | * PCI scanning code to "skip" this now blacklisted device. | |
46 | */ | |
15856ad5 | 47 | static void quirk_mellanox_tavor(struct pci_dev *dev) |
bd8481e1 DT |
48 | { |
49 | dev->broken_parity_status = 1; /* This device gives false positives */ | |
50 | } | |
51 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor); | |
52 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor); | |
53 | ||
f7625980 | 54 | /* Deal with broken BIOSes that neglect to enable passive release, |
1da177e4 | 55 | which can cause problems in combination with the 82441FX/PPro MTRRs */ |
1597cacb | 56 | static void quirk_passive_release(struct pci_dev *dev) |
1da177e4 LT |
57 | { |
58 | struct pci_dev *d = NULL; | |
59 | unsigned char dlc; | |
60 | ||
61 | /* We have to make sure a particular bit is set in the PIIX3 | |
62 | ISA bridge, so we have to go out and find it. */ | |
63 | while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) { | |
64 | pci_read_config_byte(d, 0x82, &dlc); | |
65 | if (!(dlc & 1<<1)) { | |
999da9fd | 66 | dev_info(&d->dev, "PIIX3: Enabling Passive Release\n"); |
1da177e4 LT |
67 | dlc |= 1<<1; |
68 | pci_write_config_byte(d, 0x82, dlc); | |
69 | } | |
70 | } | |
71 | } | |
652c538e AM |
72 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release); |
73 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release); | |
1da177e4 LT |
74 | |
75 | /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround | |
76 | but VIA don't answer queries. If you happen to have good contacts at VIA | |
f7625980 BH |
77 | ask them for me please -- Alan |
78 | ||
79 | This appears to be BIOS not version dependent. So presumably there is a | |
1da177e4 | 80 | chipset level fix */ |
f7625980 | 81 | |
15856ad5 | 82 | static void quirk_isa_dma_hangs(struct pci_dev *dev) |
1da177e4 LT |
83 | { |
84 | if (!isa_dma_bridge_buggy) { | |
85 | isa_dma_bridge_buggy=1; | |
f0fda801 | 86 | dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n"); |
1da177e4 LT |
87 | } |
88 | } | |
89 | /* | |
90 | * Its not totally clear which chipsets are the problematic ones | |
91 | * We know 82C586 and 82C596 variants are affected. | |
92 | */ | |
652c538e AM |
93 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs); |
94 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs); | |
95 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs); | |
f7625980 | 96 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs); |
652c538e AM |
97 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs); |
98 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs); | |
99 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs); | |
1da177e4 | 100 | |
4731fdcf LB |
101 | /* |
102 | * Intel NM10 "TigerPoint" LPC PM1a_STS.BM_STS must be clear | |
103 | * for some HT machines to use C4 w/o hanging. | |
104 | */ | |
15856ad5 | 105 | static void quirk_tigerpoint_bm_sts(struct pci_dev *dev) |
4731fdcf LB |
106 | { |
107 | u32 pmbase; | |
108 | u16 pm1a; | |
109 | ||
110 | pci_read_config_dword(dev, 0x40, &pmbase); | |
111 | pmbase = pmbase & 0xff80; | |
112 | pm1a = inw(pmbase); | |
113 | ||
114 | if (pm1a & 0x10) { | |
115 | dev_info(&dev->dev, FW_BUG "TigerPoint LPC.BM_STS cleared\n"); | |
116 | outw(0x10, pmbase); | |
117 | } | |
118 | } | |
119 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGP_LPC, quirk_tigerpoint_bm_sts); | |
120 | ||
1da177e4 LT |
121 | /* |
122 | * Chipsets where PCI->PCI transfers vanish or hang | |
123 | */ | |
15856ad5 | 124 | static void quirk_nopcipci(struct pci_dev *dev) |
1da177e4 LT |
125 | { |
126 | if ((pci_pci_problems & PCIPCI_FAIL)==0) { | |
f0fda801 | 127 | dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n"); |
1da177e4 LT |
128 | pci_pci_problems |= PCIPCI_FAIL; |
129 | } | |
130 | } | |
652c538e AM |
131 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci); |
132 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci); | |
236561e5 | 133 | |
15856ad5 | 134 | static void quirk_nopciamd(struct pci_dev *dev) |
236561e5 AC |
135 | { |
136 | u8 rev; | |
137 | pci_read_config_byte(dev, 0x08, &rev); | |
138 | if (rev == 0x13) { | |
139 | /* Erratum 24 */ | |
f0fda801 | 140 | dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n"); |
236561e5 AC |
141 | pci_pci_problems |= PCIAGP_FAIL; |
142 | } | |
143 | } | |
652c538e | 144 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd); |
1da177e4 LT |
145 | |
146 | /* | |
147 | * Triton requires workarounds to be used by the drivers | |
148 | */ | |
15856ad5 | 149 | static void quirk_triton(struct pci_dev *dev) |
1da177e4 LT |
150 | { |
151 | if ((pci_pci_problems&PCIPCI_TRITON)==0) { | |
f0fda801 | 152 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
1da177e4 LT |
153 | pci_pci_problems |= PCIPCI_TRITON; |
154 | } | |
155 | } | |
f7625980 BH |
156 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton); |
157 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton); | |
158 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton); | |
159 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton); | |
1da177e4 LT |
160 | |
161 | /* | |
162 | * VIA Apollo KT133 needs PCI latency patch | |
163 | * Made according to a windows driver based patch by George E. Breese | |
164 | * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm | |
631dd1a8 | 165 | * and http://www.georgebreese.com/net/software/#PCI |
1da177e4 LT |
166 | * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for |
167 | * the info on which Mr Breese based his work. | |
168 | * | |
169 | * Updated based on further information from the site and also on | |
f7625980 | 170 | * information provided by VIA |
1da177e4 | 171 | */ |
1597cacb | 172 | static void quirk_vialatency(struct pci_dev *dev) |
1da177e4 LT |
173 | { |
174 | struct pci_dev *p; | |
1da177e4 LT |
175 | u8 busarb; |
176 | /* Ok we have a potential problem chipset here. Now see if we have | |
177 | a buggy southbridge */ | |
f7625980 | 178 | |
1da177e4 LT |
179 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL); |
180 | if (p!=NULL) { | |
1da177e4 LT |
181 | /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */ |
182 | /* Check for buggy part revisions */ | |
2b1afa87 | 183 | if (p->revision < 0x40 || p->revision > 0x42) |
1da177e4 LT |
184 | goto exit; |
185 | } else { | |
186 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL); | |
187 | if (p==NULL) /* No problem parts */ | |
188 | goto exit; | |
1da177e4 | 189 | /* Check for buggy part revisions */ |
2b1afa87 | 190 | if (p->revision < 0x10 || p->revision > 0x12) |
1da177e4 LT |
191 | goto exit; |
192 | } | |
f7625980 | 193 | |
1da177e4 | 194 | /* |
f7625980 | 195 | * Ok we have the problem. Now set the PCI master grant to |
1da177e4 LT |
196 | * occur every master grant. The apparent bug is that under high |
197 | * PCI load (quite common in Linux of course) you can get data | |
198 | * loss when the CPU is held off the bus for 3 bus master requests | |
199 | * This happens to include the IDE controllers.... | |
200 | * | |
201 | * VIA only apply this fix when an SB Live! is present but under | |
25985edc | 202 | * both Linux and Windows this isn't enough, and we have seen |
1da177e4 LT |
203 | * corruption without SB Live! but with things like 3 UDMA IDE |
204 | * controllers. So we ignore that bit of the VIA recommendation.. | |
205 | */ | |
206 | ||
207 | pci_read_config_byte(dev, 0x76, &busarb); | |
f7625980 | 208 | /* Set bit 4 and bi 5 of byte 76 to 0x01 |
1da177e4 LT |
209 | "Master priority rotation on every PCI master grant */ |
210 | busarb &= ~(1<<5); | |
211 | busarb |= (1<<4); | |
212 | pci_write_config_byte(dev, 0x76, busarb); | |
f0fda801 | 213 | dev_info(&dev->dev, "Applying VIA southbridge workaround\n"); |
1da177e4 LT |
214 | exit: |
215 | pci_dev_put(p); | |
216 | } | |
652c538e AM |
217 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency); |
218 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency); | |
219 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency); | |
1597cacb | 220 | /* Must restore this on a resume from RAM */ |
652c538e AM |
221 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency); |
222 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency); | |
223 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency); | |
1da177e4 LT |
224 | |
225 | /* | |
226 | * VIA Apollo VP3 needs ETBF on BT848/878 | |
227 | */ | |
15856ad5 | 228 | static void quirk_viaetbf(struct pci_dev *dev) |
1da177e4 LT |
229 | { |
230 | if ((pci_pci_problems&PCIPCI_VIAETBF)==0) { | |
f0fda801 | 231 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
1da177e4 LT |
232 | pci_pci_problems |= PCIPCI_VIAETBF; |
233 | } | |
234 | } | |
652c538e | 235 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf); |
1da177e4 | 236 | |
15856ad5 | 237 | static void quirk_vsfx(struct pci_dev *dev) |
1da177e4 LT |
238 | { |
239 | if ((pci_pci_problems&PCIPCI_VSFX)==0) { | |
f0fda801 | 240 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
1da177e4 LT |
241 | pci_pci_problems |= PCIPCI_VSFX; |
242 | } | |
243 | } | |
652c538e | 244 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx); |
1da177e4 LT |
245 | |
246 | /* | |
247 | * Ali Magik requires workarounds to be used by the drivers | |
248 | * that DMA to AGP space. Latency must be set to 0xA and triton | |
249 | * workaround applied too | |
250 | * [Info kindly provided by ALi] | |
f7625980 | 251 | */ |
15856ad5 | 252 | static void quirk_alimagik(struct pci_dev *dev) |
1da177e4 LT |
253 | { |
254 | if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) { | |
f0fda801 | 255 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
1da177e4 LT |
256 | pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON; |
257 | } | |
258 | } | |
f7625980 BH |
259 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik); |
260 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik); | |
1da177e4 LT |
261 | |
262 | /* | |
263 | * Natoma has some interesting boundary conditions with Zoran stuff | |
264 | * at least | |
265 | */ | |
15856ad5 | 266 | static void quirk_natoma(struct pci_dev *dev) |
1da177e4 LT |
267 | { |
268 | if ((pci_pci_problems&PCIPCI_NATOMA)==0) { | |
f0fda801 | 269 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
1da177e4 LT |
270 | pci_pci_problems |= PCIPCI_NATOMA; |
271 | } | |
272 | } | |
f7625980 BH |
273 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma); |
274 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma); | |
275 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma); | |
276 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma); | |
277 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma); | |
278 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma); | |
1da177e4 LT |
279 | |
280 | /* | |
281 | * This chip can cause PCI parity errors if config register 0xA0 is read | |
282 | * while DMAs are occurring. | |
283 | */ | |
15856ad5 | 284 | static void quirk_citrine(struct pci_dev *dev) |
1da177e4 LT |
285 | { |
286 | dev->cfg_size = 0xA0; | |
287 | } | |
652c538e | 288 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine); |
1da177e4 LT |
289 | |
290 | /* | |
291 | * S3 868 and 968 chips report region size equal to 32M, but they decode 64M. | |
292 | * If it's needed, re-allocate the region. | |
293 | */ | |
15856ad5 | 294 | static void quirk_s3_64M(struct pci_dev *dev) |
1da177e4 LT |
295 | { |
296 | struct resource *r = &dev->resource[0]; | |
297 | ||
298 | if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) { | |
299 | r->start = 0; | |
300 | r->end = 0x3ffffff; | |
301 | } | |
302 | } | |
652c538e AM |
303 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M); |
304 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M); | |
1da177e4 | 305 | |
73d2eaac AS |
306 | /* |
307 | * Some CS5536 BIOSes (for example, the Soekris NET5501 board w/ comBIOS | |
308 | * ver. 1.33 20070103) don't set the correct ISA PCI region header info. | |
309 | * BAR0 should be 8 bytes; instead, it may be set to something like 8k | |
310 | * (which conflicts w/ BAR1's memory range). | |
311 | */ | |
15856ad5 | 312 | static void quirk_cs5536_vsa(struct pci_dev *dev) |
73d2eaac AS |
313 | { |
314 | if (pci_resource_len(dev, 0) != 8) { | |
315 | struct resource *res = &dev->resource[0]; | |
316 | res->end = res->start + 8 - 1; | |
317 | dev_info(&dev->dev, "CS5536 ISA bridge bug detected " | |
318 | "(incorrect header); workaround applied.\n"); | |
319 | } | |
320 | } | |
321 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_cs5536_vsa); | |
322 | ||
65195c76 YL |
323 | static void quirk_io_region(struct pci_dev *dev, int port, |
324 | unsigned size, int nr, const char *name) | |
325 | { | |
326 | u16 region; | |
327 | struct pci_bus_region bus_region; | |
328 | struct resource *res = dev->resource + nr; | |
329 | ||
330 | pci_read_config_word(dev, port, ®ion); | |
331 | region &= ~(size - 1); | |
332 | ||
333 | if (!region) | |
334 | return; | |
335 | ||
336 | res->name = pci_name(dev); | |
337 | res->flags = IORESOURCE_IO; | |
338 | ||
339 | /* Convert from PCI bus to resource space */ | |
340 | bus_region.start = region; | |
341 | bus_region.end = region + size - 1; | |
342 | pcibios_bus_to_resource(dev, res, &bus_region); | |
343 | ||
344 | if (!pci_claim_resource(dev, nr)) | |
345 | dev_info(&dev->dev, "quirk: %pR claimed by %s\n", res, name); | |
346 | } | |
1da177e4 LT |
347 | |
348 | /* | |
349 | * ATI Northbridge setups MCE the processor if you even | |
350 | * read somewhere between 0x3b0->0x3bb or read 0x3d3 | |
351 | */ | |
15856ad5 | 352 | static void quirk_ati_exploding_mce(struct pci_dev *dev) |
1da177e4 | 353 | { |
f0fda801 | 354 | dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n"); |
1da177e4 LT |
355 | /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */ |
356 | request_region(0x3b0, 0x0C, "RadeonIGP"); | |
357 | request_region(0x3d3, 0x01, "RadeonIGP"); | |
358 | } | |
652c538e | 359 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce); |
1da177e4 LT |
360 | |
361 | /* | |
362 | * Let's make the southbridge information explicit instead | |
363 | * of having to worry about people probing the ACPI areas, | |
364 | * for example.. (Yes, it happens, and if you read the wrong | |
365 | * ACPI register it will put the machine to sleep with no | |
366 | * way of waking it up again. Bummer). | |
367 | * | |
368 | * ALI M7101: Two IO regions pointed to by words at | |
369 | * 0xE0 (64 bytes of ACPI registers) | |
370 | * 0xE2 (32 bytes of SMB registers) | |
371 | */ | |
15856ad5 | 372 | static void quirk_ali7101_acpi(struct pci_dev *dev) |
1da177e4 | 373 | { |
65195c76 YL |
374 | quirk_io_region(dev, 0xE0, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI"); |
375 | quirk_io_region(dev, 0xE2, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB"); | |
1da177e4 | 376 | } |
652c538e | 377 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi); |
1da177e4 | 378 | |
6693e74a LT |
379 | static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable) |
380 | { | |
381 | u32 devres; | |
382 | u32 mask, size, base; | |
383 | ||
384 | pci_read_config_dword(dev, port, &devres); | |
385 | if ((devres & enable) != enable) | |
386 | return; | |
387 | mask = (devres >> 16) & 15; | |
388 | base = devres & 0xffff; | |
389 | size = 16; | |
390 | for (;;) { | |
391 | unsigned bit = size >> 1; | |
392 | if ((bit & mask) == bit) | |
393 | break; | |
394 | size = bit; | |
395 | } | |
396 | /* | |
397 | * For now we only print it out. Eventually we'll want to | |
398 | * reserve it (at least if it's in the 0x1000+ range), but | |
f7625980 | 399 | * let's get enough confirmation reports first. |
6693e74a LT |
400 | */ |
401 | base &= -size; | |
f0fda801 | 402 | dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1); |
6693e74a LT |
403 | } |
404 | ||
405 | static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable) | |
406 | { | |
407 | u32 devres; | |
408 | u32 mask, size, base; | |
409 | ||
410 | pci_read_config_dword(dev, port, &devres); | |
411 | if ((devres & enable) != enable) | |
412 | return; | |
413 | base = devres & 0xffff0000; | |
414 | mask = (devres & 0x3f) << 16; | |
415 | size = 128 << 16; | |
416 | for (;;) { | |
417 | unsigned bit = size >> 1; | |
418 | if ((bit & mask) == bit) | |
419 | break; | |
420 | size = bit; | |
421 | } | |
422 | /* | |
423 | * For now we only print it out. Eventually we'll want to | |
f7625980 | 424 | * reserve it, but let's get enough confirmation reports first. |
6693e74a LT |
425 | */ |
426 | base &= -size; | |
f0fda801 | 427 | dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1); |
6693e74a LT |
428 | } |
429 | ||
1da177e4 LT |
430 | /* |
431 | * PIIX4 ACPI: Two IO regions pointed to by longwords at | |
432 | * 0x40 (64 bytes of ACPI registers) | |
08db2a70 | 433 | * 0x90 (16 bytes of SMB registers) |
6693e74a | 434 | * and a few strange programmable PIIX4 device resources. |
1da177e4 | 435 | */ |
15856ad5 | 436 | static void quirk_piix4_acpi(struct pci_dev *dev) |
1da177e4 | 437 | { |
65195c76 | 438 | u32 res_a; |
1da177e4 | 439 | |
65195c76 YL |
440 | quirk_io_region(dev, 0x40, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI"); |
441 | quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB"); | |
6693e74a LT |
442 | |
443 | /* Device resource A has enables for some of the other ones */ | |
444 | pci_read_config_dword(dev, 0x5c, &res_a); | |
445 | ||
446 | piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21); | |
447 | piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21); | |
448 | ||
449 | /* Device resource D is just bitfields for static resources */ | |
450 | ||
451 | /* Device 12 enabled? */ | |
452 | if (res_a & (1 << 29)) { | |
453 | piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20); | |
454 | piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7); | |
455 | } | |
456 | /* Device 13 enabled? */ | |
457 | if (res_a & (1 << 30)) { | |
458 | piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20); | |
459 | piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7); | |
460 | } | |
461 | piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20); | |
462 | piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20); | |
1da177e4 | 463 | } |
652c538e AM |
464 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi); |
465 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi); | |
1da177e4 | 466 | |
cdb97558 JS |
467 | #define ICH_PMBASE 0x40 |
468 | #define ICH_ACPI_CNTL 0x44 | |
469 | #define ICH4_ACPI_EN 0x10 | |
470 | #define ICH6_ACPI_EN 0x80 | |
471 | #define ICH4_GPIOBASE 0x58 | |
472 | #define ICH4_GPIO_CNTL 0x5c | |
473 | #define ICH4_GPIO_EN 0x10 | |
474 | #define ICH6_GPIOBASE 0x48 | |
475 | #define ICH6_GPIO_CNTL 0x4c | |
476 | #define ICH6_GPIO_EN 0x10 | |
477 | ||
1da177e4 LT |
478 | /* |
479 | * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at | |
480 | * 0x40 (128 bytes of ACPI, GPIO & TCO registers) | |
481 | * 0x58 (64 bytes of GPIO I/O space) | |
482 | */ | |
15856ad5 | 483 | static void quirk_ich4_lpc_acpi(struct pci_dev *dev) |
1da177e4 | 484 | { |
cdb97558 | 485 | u8 enable; |
1da177e4 | 486 | |
87e3dc38 JS |
487 | /* |
488 | * The check for PCIBIOS_MIN_IO is to ensure we won't create a conflict | |
489 | * with low legacy (and fixed) ports. We don't know the decoding | |
490 | * priority and can't tell whether the legacy device or the one created | |
491 | * here is really at that address. This happens on boards with broken | |
492 | * BIOSes. | |
493 | */ | |
494 | ||
cdb97558 | 495 | pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable); |
65195c76 YL |
496 | if (enable & ICH4_ACPI_EN) |
497 | quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES, | |
498 | "ICH4 ACPI/GPIO/TCO"); | |
1da177e4 | 499 | |
cdb97558 | 500 | pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable); |
65195c76 YL |
501 | if (enable & ICH4_GPIO_EN) |
502 | quirk_io_region(dev, ICH4_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1, | |
503 | "ICH4 GPIO"); | |
1da177e4 | 504 | } |
652c538e AM |
505 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi); |
506 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi); | |
507 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi); | |
508 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi); | |
509 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi); | |
510 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi); | |
511 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi); | |
512 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi); | |
513 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi); | |
514 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi); | |
1da177e4 | 515 | |
15856ad5 | 516 | static void ich6_lpc_acpi_gpio(struct pci_dev *dev) |
2cea752f | 517 | { |
cdb97558 | 518 | u8 enable; |
2cea752f | 519 | |
cdb97558 | 520 | pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable); |
65195c76 YL |
521 | if (enable & ICH6_ACPI_EN) |
522 | quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES, | |
523 | "ICH6 ACPI/GPIO/TCO"); | |
2cea752f | 524 | |
cdb97558 | 525 | pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable); |
65195c76 YL |
526 | if (enable & ICH6_GPIO_EN) |
527 | quirk_io_region(dev, ICH6_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1, | |
528 | "ICH6 GPIO"); | |
2cea752f | 529 | } |
894886e5 | 530 | |
15856ad5 | 531 | static void ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize) |
894886e5 LT |
532 | { |
533 | u32 val; | |
534 | u32 size, base; | |
535 | ||
536 | pci_read_config_dword(dev, reg, &val); | |
537 | ||
538 | /* Enabled? */ | |
539 | if (!(val & 1)) | |
540 | return; | |
541 | base = val & 0xfffc; | |
542 | if (dynsize) { | |
543 | /* | |
544 | * This is not correct. It is 16, 32 or 64 bytes depending on | |
545 | * register D31:F0:ADh bits 5:4. | |
546 | * | |
547 | * But this gets us at least _part_ of it. | |
548 | */ | |
549 | size = 16; | |
550 | } else { | |
551 | size = 128; | |
552 | } | |
553 | base &= ~(size-1); | |
554 | ||
555 | /* Just print it out for now. We should reserve it after more debugging */ | |
556 | dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base+size-1); | |
557 | } | |
558 | ||
15856ad5 | 559 | static void quirk_ich6_lpc(struct pci_dev *dev) |
894886e5 LT |
560 | { |
561 | /* Shared ACPI/GPIO decode with all ICH6+ */ | |
562 | ich6_lpc_acpi_gpio(dev); | |
563 | ||
564 | /* ICH6-specific generic IO decode */ | |
565 | ich6_lpc_generic_decode(dev, 0x84, "LPC Generic IO decode 1", 0); | |
566 | ich6_lpc_generic_decode(dev, 0x88, "LPC Generic IO decode 2", 1); | |
567 | } | |
568 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc); | |
569 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc); | |
570 | ||
15856ad5 | 571 | static void ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name) |
894886e5 LT |
572 | { |
573 | u32 val; | |
574 | u32 mask, base; | |
575 | ||
576 | pci_read_config_dword(dev, reg, &val); | |
577 | ||
578 | /* Enabled? */ | |
579 | if (!(val & 1)) | |
580 | return; | |
581 | ||
582 | /* | |
583 | * IO base in bits 15:2, mask in bits 23:18, both | |
584 | * are dword-based | |
585 | */ | |
586 | base = val & 0xfffc; | |
587 | mask = (val >> 16) & 0xfc; | |
588 | mask |= 3; | |
589 | ||
590 | /* Just print it out for now. We should reserve it after more debugging */ | |
591 | dev_info(&dev->dev, "%s PIO at %04x (mask %04x)\n", name, base, mask); | |
592 | } | |
593 | ||
594 | /* ICH7-10 has the same common LPC generic IO decode registers */ | |
15856ad5 | 595 | static void quirk_ich7_lpc(struct pci_dev *dev) |
894886e5 | 596 | { |
5d9c0a79 | 597 | /* We share the common ACPI/GPIO decode with ICH6 */ |
894886e5 LT |
598 | ich6_lpc_acpi_gpio(dev); |
599 | ||
600 | /* And have 4 ICH7+ generic decodes */ | |
601 | ich7_lpc_generic_decode(dev, 0x84, "ICH7 LPC Generic IO decode 1"); | |
602 | ich7_lpc_generic_decode(dev, 0x88, "ICH7 LPC Generic IO decode 2"); | |
603 | ich7_lpc_generic_decode(dev, 0x8c, "ICH7 LPC Generic IO decode 3"); | |
604 | ich7_lpc_generic_decode(dev, 0x90, "ICH7 LPC Generic IO decode 4"); | |
605 | } | |
606 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich7_lpc); | |
607 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich7_lpc); | |
608 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich7_lpc); | |
609 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich7_lpc); | |
610 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich7_lpc); | |
611 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich7_lpc); | |
612 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich7_lpc); | |
613 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich7_lpc); | |
614 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich7_lpc); | |
615 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich7_lpc); | |
616 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich7_lpc); | |
617 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich7_lpc); | |
618 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1, quirk_ich7_lpc); | |
2cea752f | 619 | |
1da177e4 LT |
620 | /* |
621 | * VIA ACPI: One IO region pointed to by longword at | |
622 | * 0x48 or 0x20 (256 bytes of ACPI registers) | |
623 | */ | |
15856ad5 | 624 | static void quirk_vt82c586_acpi(struct pci_dev *dev) |
1da177e4 | 625 | { |
65195c76 YL |
626 | if (dev->revision & 0x10) |
627 | quirk_io_region(dev, 0x48, 256, PCI_BRIDGE_RESOURCES, | |
628 | "vt82c586 ACPI"); | |
1da177e4 | 629 | } |
652c538e | 630 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi); |
1da177e4 LT |
631 | |
632 | /* | |
633 | * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at | |
634 | * 0x48 (256 bytes of ACPI registers) | |
635 | * 0x70 (128 bytes of hardware monitoring register) | |
636 | * 0x90 (16 bytes of SMB registers) | |
637 | */ | |
15856ad5 | 638 | static void quirk_vt82c686_acpi(struct pci_dev *dev) |
1da177e4 | 639 | { |
1da177e4 LT |
640 | quirk_vt82c586_acpi(dev); |
641 | ||
65195c76 YL |
642 | quirk_io_region(dev, 0x70, 128, PCI_BRIDGE_RESOURCES+1, |
643 | "vt82c686 HW-mon"); | |
1da177e4 | 644 | |
65195c76 | 645 | quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+2, "vt82c686 SMB"); |
1da177e4 | 646 | } |
652c538e | 647 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi); |
1da177e4 | 648 | |
6d85f29b IK |
649 | /* |
650 | * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at | |
651 | * 0x88 (128 bytes of power management registers) | |
652 | * 0xd0 (16 bytes of SMB registers) | |
653 | */ | |
15856ad5 | 654 | static void quirk_vt8235_acpi(struct pci_dev *dev) |
6d85f29b | 655 | { |
65195c76 YL |
656 | quirk_io_region(dev, 0x88, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM"); |
657 | quirk_io_region(dev, 0xd0, 16, PCI_BRIDGE_RESOURCES+1, "vt8235 SMB"); | |
6d85f29b IK |
658 | } |
659 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi); | |
660 | ||
1f56f4a2 GB |
661 | /* |
662 | * TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back: | |
663 | * Disable fast back-to-back on the secondary bus segment | |
664 | */ | |
15856ad5 | 665 | static void quirk_xio2000a(struct pci_dev *dev) |
1f56f4a2 GB |
666 | { |
667 | struct pci_dev *pdev; | |
668 | u16 command; | |
669 | ||
670 | dev_warn(&dev->dev, "TI XIO2000a quirk detected; " | |
671 | "secondary bus fast back-to-back transfers disabled\n"); | |
672 | list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) { | |
673 | pci_read_config_word(pdev, PCI_COMMAND, &command); | |
674 | if (command & PCI_COMMAND_FAST_BACK) | |
675 | pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK); | |
676 | } | |
677 | } | |
678 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A, | |
679 | quirk_xio2000a); | |
1da177e4 | 680 | |
f7625980 | 681 | #ifdef CONFIG_X86_IO_APIC |
1da177e4 LT |
682 | |
683 | #include <asm/io_apic.h> | |
684 | ||
685 | /* | |
686 | * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip | |
687 | * devices to the external APIC. | |
688 | * | |
689 | * TODO: When we have device-specific interrupt routers, | |
690 | * this code will go away from quirks. | |
691 | */ | |
1597cacb | 692 | static void quirk_via_ioapic(struct pci_dev *dev) |
1da177e4 LT |
693 | { |
694 | u8 tmp; | |
f7625980 | 695 | |
1da177e4 LT |
696 | if (nr_ioapics < 1) |
697 | tmp = 0; /* nothing routed to external APIC */ | |
698 | else | |
699 | tmp = 0x1f; /* all known bits (4-0) routed to external APIC */ | |
f7625980 | 700 | |
f0fda801 | 701 | dev_info(&dev->dev, "%sbling VIA external APIC routing\n", |
1da177e4 LT |
702 | tmp == 0 ? "Disa" : "Ena"); |
703 | ||
704 | /* Offset 0x58: External APIC IRQ output control */ | |
705 | pci_write_config_byte (dev, 0x58, tmp); | |
706 | } | |
652c538e | 707 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic); |
e1a2a51e | 708 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic); |
1da177e4 | 709 | |
a1740913 | 710 | /* |
f7625980 | 711 | * VIA 8237: Some BIOSes don't set the 'Bypass APIC De-Assert Message' Bit. |
a1740913 KW |
712 | * This leads to doubled level interrupt rates. |
713 | * Set this bit to get rid of cycle wastage. | |
714 | * Otherwise uncritical. | |
715 | */ | |
1597cacb | 716 | static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev) |
a1740913 KW |
717 | { |
718 | u8 misc_control2; | |
719 | #define BYPASS_APIC_DEASSERT 8 | |
720 | ||
721 | pci_read_config_byte(dev, 0x5B, &misc_control2); | |
722 | if (!(misc_control2 & BYPASS_APIC_DEASSERT)) { | |
f0fda801 | 723 | dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n"); |
a1740913 KW |
724 | pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT); |
725 | } | |
726 | } | |
727 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); | |
e1a2a51e | 728 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); |
a1740913 | 729 | |
1da177e4 LT |
730 | /* |
731 | * The AMD io apic can hang the box when an apic irq is masked. | |
732 | * We check all revs >= B0 (yet not in the pre production!) as the bug | |
733 | * is currently marked NoFix | |
734 | * | |
735 | * We have multiple reports of hangs with this chipset that went away with | |
236561e5 | 736 | * noapic specified. For the moment we assume it's the erratum. We may be wrong |
1da177e4 LT |
737 | * of course. However the advice is demonstrably good even if so.. |
738 | */ | |
15856ad5 | 739 | static void quirk_amd_ioapic(struct pci_dev *dev) |
1da177e4 | 740 | { |
44c10138 | 741 | if (dev->revision >= 0x02) { |
f0fda801 | 742 | dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n"); |
743 | dev_warn(&dev->dev, " : booting with the \"noapic\" option\n"); | |
1da177e4 LT |
744 | } |
745 | } | |
652c538e | 746 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic); |
1da177e4 | 747 | |
15856ad5 | 748 | static void quirk_ioapic_rmw(struct pci_dev *dev) |
1da177e4 LT |
749 | { |
750 | if (dev->devfn == 0 && dev->bus->number == 0) | |
751 | sis_apic_bug = 1; | |
752 | } | |
652c538e | 753 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw); |
1da177e4 LT |
754 | #endif /* CONFIG_X86_IO_APIC */ |
755 | ||
d556ad4b PO |
756 | /* |
757 | * Some settings of MMRBC can lead to data corruption so block changes. | |
758 | * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide | |
759 | */ | |
15856ad5 | 760 | static void quirk_amd_8131_mmrbc(struct pci_dev *dev) |
d556ad4b | 761 | { |
aa288d4d | 762 | if (dev->subordinate && dev->revision <= 0x12) { |
f0fda801 | 763 | dev_info(&dev->dev, "AMD8131 rev %x detected; " |
764 | "disabling PCI-X MMRBC\n", dev->revision); | |
d556ad4b PO |
765 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC; |
766 | } | |
767 | } | |
768 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc); | |
1da177e4 | 769 | |
1da177e4 LT |
770 | /* |
771 | * FIXME: it is questionable that quirk_via_acpi | |
772 | * is needed. It shows up as an ISA bridge, and does not | |
773 | * support the PCI_INTERRUPT_LINE register at all. Therefore | |
774 | * it seems like setting the pci_dev's 'irq' to the | |
775 | * value of the ACPI SCI interrupt is only done for convenience. | |
776 | * -jgarzik | |
777 | */ | |
15856ad5 | 778 | static void quirk_via_acpi(struct pci_dev *d) |
1da177e4 LT |
779 | { |
780 | /* | |
781 | * VIA ACPI device: SCI IRQ line in PCI config byte 0x42 | |
782 | */ | |
783 | u8 irq; | |
784 | pci_read_config_byte(d, 0x42, &irq); | |
785 | irq &= 0xf; | |
786 | if (irq && (irq != 2)) | |
787 | d->irq = irq; | |
788 | } | |
652c538e AM |
789 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi); |
790 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi); | |
1da177e4 | 791 | |
09d6029f DD |
792 | |
793 | /* | |
1597cacb | 794 | * VIA bridges which have VLink |
09d6029f | 795 | */ |
1597cacb | 796 | |
c06bb5d4 JD |
797 | static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18; |
798 | ||
799 | static void quirk_via_bridge(struct pci_dev *dev) | |
800 | { | |
801 | /* See what bridge we have and find the device ranges */ | |
802 | switch (dev->device) { | |
803 | case PCI_DEVICE_ID_VIA_82C686: | |
cb7468ef JD |
804 | /* The VT82C686 is special, it attaches to PCI and can have |
805 | any device number. All its subdevices are functions of | |
806 | that single device. */ | |
807 | via_vlink_dev_lo = PCI_SLOT(dev->devfn); | |
808 | via_vlink_dev_hi = PCI_SLOT(dev->devfn); | |
c06bb5d4 JD |
809 | break; |
810 | case PCI_DEVICE_ID_VIA_8237: | |
811 | case PCI_DEVICE_ID_VIA_8237A: | |
812 | via_vlink_dev_lo = 15; | |
813 | break; | |
814 | case PCI_DEVICE_ID_VIA_8235: | |
815 | via_vlink_dev_lo = 16; | |
816 | break; | |
817 | case PCI_DEVICE_ID_VIA_8231: | |
818 | case PCI_DEVICE_ID_VIA_8233_0: | |
819 | case PCI_DEVICE_ID_VIA_8233A: | |
820 | case PCI_DEVICE_ID_VIA_8233C_0: | |
821 | via_vlink_dev_lo = 17; | |
822 | break; | |
823 | } | |
824 | } | |
825 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge); | |
826 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge); | |
827 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge); | |
828 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge); | |
829 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge); | |
830 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge); | |
831 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge); | |
832 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge); | |
09d6029f | 833 | |
1597cacb AC |
834 | /** |
835 | * quirk_via_vlink - VIA VLink IRQ number update | |
836 | * @dev: PCI device | |
837 | * | |
838 | * If the device we are dealing with is on a PIC IRQ we need to | |
839 | * ensure that the IRQ line register which usually is not relevant | |
840 | * for PCI cards, is actually written so that interrupts get sent | |
c06bb5d4 JD |
841 | * to the right place. |
842 | * We only do this on systems where a VIA south bridge was detected, | |
843 | * and only for VIA devices on the motherboard (see quirk_via_bridge | |
844 | * above). | |
1597cacb AC |
845 | */ |
846 | ||
847 | static void quirk_via_vlink(struct pci_dev *dev) | |
25be5e6c LB |
848 | { |
849 | u8 irq, new_irq; | |
850 | ||
c06bb5d4 JD |
851 | /* Check if we have VLink at all */ |
852 | if (via_vlink_dev_lo == -1) | |
09d6029f DD |
853 | return; |
854 | ||
855 | new_irq = dev->irq; | |
856 | ||
857 | /* Don't quirk interrupts outside the legacy IRQ range */ | |
858 | if (!new_irq || new_irq > 15) | |
859 | return; | |
860 | ||
1597cacb | 861 | /* Internal device ? */ |
c06bb5d4 JD |
862 | if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi || |
863 | PCI_SLOT(dev->devfn) < via_vlink_dev_lo) | |
1597cacb AC |
864 | return; |
865 | ||
866 | /* This is an internal VLink device on a PIC interrupt. The BIOS | |
867 | ought to have set this but may not have, so we redo it */ | |
868 | ||
25be5e6c LB |
869 | pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq); |
870 | if (new_irq != irq) { | |
f0fda801 | 871 | dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n", |
872 | irq, new_irq); | |
25be5e6c LB |
873 | udelay(15); /* unknown if delay really needed */ |
874 | pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq); | |
875 | } | |
876 | } | |
1597cacb | 877 | DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink); |
25be5e6c | 878 | |
1da177e4 LT |
879 | /* |
880 | * VIA VT82C598 has its device ID settable and many BIOSes | |
881 | * set it to the ID of VT82C597 for backward compatibility. | |
882 | * We need to switch it off to be able to recognize the real | |
883 | * type of the chip. | |
884 | */ | |
15856ad5 | 885 | static void quirk_vt82c598_id(struct pci_dev *dev) |
1da177e4 LT |
886 | { |
887 | pci_write_config_byte(dev, 0xfc, 0); | |
888 | pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device); | |
889 | } | |
652c538e | 890 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id); |
1da177e4 LT |
891 | |
892 | /* | |
893 | * CardBus controllers have a legacy base address that enables them | |
894 | * to respond as i82365 pcmcia controllers. We don't want them to | |
895 | * do this even if the Linux CardBus driver is not loaded, because | |
896 | * the Linux i82365 driver does not (and should not) handle CardBus. | |
897 | */ | |
1597cacb | 898 | static void quirk_cardbus_legacy(struct pci_dev *dev) |
1da177e4 | 899 | { |
1da177e4 LT |
900 | pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0); |
901 | } | |
ae9de56b YL |
902 | DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID, |
903 | PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy); | |
904 | DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, | |
905 | PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy); | |
1da177e4 LT |
906 | |
907 | /* | |
908 | * Following the PCI ordering rules is optional on the AMD762. I'm not | |
909 | * sure what the designers were smoking but let's not inhale... | |
910 | * | |
911 | * To be fair to AMD, it follows the spec by default, its BIOS people | |
912 | * who turn it off! | |
913 | */ | |
1597cacb | 914 | static void quirk_amd_ordering(struct pci_dev *dev) |
1da177e4 LT |
915 | { |
916 | u32 pcic; | |
917 | pci_read_config_dword(dev, 0x4C, &pcic); | |
918 | if ((pcic&6)!=6) { | |
919 | pcic |= 6; | |
f0fda801 | 920 | dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n"); |
1da177e4 LT |
921 | pci_write_config_dword(dev, 0x4C, pcic); |
922 | pci_read_config_dword(dev, 0x84, &pcic); | |
923 | pcic |= (1<<23); /* Required in this mode */ | |
924 | pci_write_config_dword(dev, 0x84, pcic); | |
925 | } | |
926 | } | |
652c538e | 927 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering); |
e1a2a51e | 928 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering); |
1da177e4 LT |
929 | |
930 | /* | |
931 | * DreamWorks provided workaround for Dunord I-3000 problem | |
932 | * | |
933 | * This card decodes and responds to addresses not apparently | |
934 | * assigned to it. We force a larger allocation to ensure that | |
935 | * nothing gets put too close to it. | |
936 | */ | |
15856ad5 | 937 | static void quirk_dunord(struct pci_dev *dev) |
1da177e4 LT |
938 | { |
939 | struct resource *r = &dev->resource [1]; | |
940 | r->start = 0; | |
941 | r->end = 0xffffff; | |
942 | } | |
652c538e | 943 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord); |
1da177e4 LT |
944 | |
945 | /* | |
946 | * i82380FB mobile docking controller: its PCI-to-PCI bridge | |
947 | * is subtractive decoding (transparent), and does indicate this | |
948 | * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80 | |
949 | * instead of 0x01. | |
950 | */ | |
15856ad5 | 951 | static void quirk_transparent_bridge(struct pci_dev *dev) |
1da177e4 LT |
952 | { |
953 | dev->transparent = 1; | |
954 | } | |
652c538e AM |
955 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge); |
956 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge); | |
1da177e4 LT |
957 | |
958 | /* | |
959 | * Common misconfiguration of the MediaGX/Geode PCI master that will | |
960 | * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1 | |
631dd1a8 | 961 | * datasheets found at http://www.national.com/analog for info on what |
1da177e4 LT |
962 | * these bits do. <christer@weinigel.se> |
963 | */ | |
1597cacb | 964 | static void quirk_mediagx_master(struct pci_dev *dev) |
1da177e4 LT |
965 | { |
966 | u8 reg; | |
967 | pci_read_config_byte(dev, 0x41, ®); | |
968 | if (reg & 2) { | |
969 | reg &= ~2; | |
f0fda801 | 970 | dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", reg); |
1da177e4 LT |
971 | pci_write_config_byte(dev, 0x41, reg); |
972 | } | |
973 | } | |
652c538e AM |
974 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master); |
975 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master); | |
1da177e4 | 976 | |
1da177e4 LT |
977 | /* |
978 | * Ensure C0 rev restreaming is off. This is normally done by | |
979 | * the BIOS but in the odd case it is not the results are corruption | |
980 | * hence the presence of a Linux check | |
981 | */ | |
1597cacb | 982 | static void quirk_disable_pxb(struct pci_dev *pdev) |
1da177e4 LT |
983 | { |
984 | u16 config; | |
f7625980 | 985 | |
44c10138 | 986 | if (pdev->revision != 0x04) /* Only C0 requires this */ |
1da177e4 LT |
987 | return; |
988 | pci_read_config_word(pdev, 0x40, &config); | |
989 | if (config & (1<<6)) { | |
990 | config &= ~(1<<6); | |
991 | pci_write_config_word(pdev, 0x40, config); | |
f0fda801 | 992 | dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n"); |
1da177e4 LT |
993 | } |
994 | } | |
652c538e | 995 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb); |
e1a2a51e | 996 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb); |
1da177e4 | 997 | |
25e742b2 | 998 | static void quirk_amd_ide_mode(struct pci_dev *pdev) |
ab17443a | 999 | { |
5deab536 | 1000 | /* set SBX00/Hudson-2 SATA in IDE mode to AHCI mode */ |
05a7d22b | 1001 | u8 tmp; |
ab17443a | 1002 | |
05a7d22b CC |
1003 | pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp); |
1004 | if (tmp == 0x01) { | |
ab17443a CH |
1005 | pci_read_config_byte(pdev, 0x40, &tmp); |
1006 | pci_write_config_byte(pdev, 0x40, tmp|1); | |
1007 | pci_write_config_byte(pdev, 0x9, 1); | |
1008 | pci_write_config_byte(pdev, 0xa, 6); | |
1009 | pci_write_config_byte(pdev, 0x40, tmp); | |
1010 | ||
c9f89475 | 1011 | pdev->class = PCI_CLASS_STORAGE_SATA_AHCI; |
05a7d22b | 1012 | dev_info(&pdev->dev, "set SATA to AHCI mode\n"); |
ab17443a CH |
1013 | } |
1014 | } | |
05a7d22b | 1015 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode); |
e1a2a51e | 1016 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode); |
05a7d22b | 1017 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode); |
e1a2a51e | 1018 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode); |
5deab536 SH |
1019 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode); |
1020 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode); | |
fafe5c3d SH |
1021 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode); |
1022 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode); | |
ab17443a | 1023 | |
1da177e4 LT |
1024 | /* |
1025 | * Serverworks CSB5 IDE does not fully support native mode | |
1026 | */ | |
15856ad5 | 1027 | static void quirk_svwks_csb5ide(struct pci_dev *pdev) |
1da177e4 LT |
1028 | { |
1029 | u8 prog; | |
1030 | pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog); | |
1031 | if (prog & 5) { | |
1032 | prog &= ~5; | |
1033 | pdev->class &= ~5; | |
1034 | pci_write_config_byte(pdev, PCI_CLASS_PROG, prog); | |
368c73d4 | 1035 | /* PCI layer will sort out resources */ |
1da177e4 LT |
1036 | } |
1037 | } | |
652c538e | 1038 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide); |
1da177e4 LT |
1039 | |
1040 | /* | |
1041 | * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same | |
1042 | */ | |
15856ad5 | 1043 | static void quirk_ide_samemode(struct pci_dev *pdev) |
1da177e4 LT |
1044 | { |
1045 | u8 prog; | |
1046 | ||
1047 | pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog); | |
1048 | ||
1049 | if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) { | |
f0fda801 | 1050 | dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n"); |
1da177e4 LT |
1051 | prog &= ~5; |
1052 | pdev->class &= ~5; | |
1053 | pci_write_config_byte(pdev, PCI_CLASS_PROG, prog); | |
1da177e4 LT |
1054 | } |
1055 | } | |
368c73d4 | 1056 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode); |
1da177e4 | 1057 | |
979b1791 AC |
1058 | /* |
1059 | * Some ATA devices break if put into D3 | |
1060 | */ | |
1061 | ||
15856ad5 | 1062 | static void quirk_no_ata_d3(struct pci_dev *pdev) |
979b1791 | 1063 | { |
faa738bb | 1064 | pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3; |
979b1791 | 1065 | } |
faa738bb YL |
1066 | /* Quirk the legacy ATA devices only. The AHCI ones are ok */ |
1067 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, | |
1068 | PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3); | |
1069 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, | |
1070 | PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3); | |
7a661c6f | 1071 | /* ALi loses some register settings that we cannot then restore */ |
faa738bb YL |
1072 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, |
1073 | PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3); | |
7a661c6f AC |
1074 | /* VIA comes back fine but we need to keep it alive or ACPI GTM failures |
1075 | occur when mode detecting */ | |
faa738bb YL |
1076 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID, |
1077 | PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3); | |
979b1791 | 1078 | |
1da177e4 LT |
1079 | /* This was originally an Alpha specific thing, but it really fits here. |
1080 | * The i82375 PCI/EISA bridge appears as non-classified. Fix that. | |
1081 | */ | |
15856ad5 | 1082 | static void quirk_eisa_bridge(struct pci_dev *dev) |
1da177e4 LT |
1083 | { |
1084 | dev->class = PCI_CLASS_BRIDGE_EISA << 8; | |
1085 | } | |
652c538e | 1086 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge); |
1da177e4 | 1087 | |
7daa0c4f | 1088 | |
1da177e4 LT |
1089 | /* |
1090 | * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge | |
1091 | * is not activated. The myth is that Asus said that they do not want the | |
1092 | * users to be irritated by just another PCI Device in the Win98 device | |
f7625980 | 1093 | * manager. (see the file prog/hotplug/README.p4b in the lm_sensors |
1da177e4 LT |
1094 | * package 2.7.0 for details) |
1095 | * | |
f7625980 BH |
1096 | * The SMBus PCI Device can be activated by setting a bit in the ICH LPC |
1097 | * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it | |
d7698edc | 1098 | * becomes necessary to do this tweak in two steps -- the chosen trigger |
1099 | * is either the Host bridge (preferred) or on-board VGA controller. | |
9208ee82 JD |
1100 | * |
1101 | * Note that we used to unhide the SMBus that way on Toshiba laptops | |
1102 | * (Satellite A40 and Tecra M2) but then found that the thermal management | |
1103 | * was done by SMM code, which could cause unsynchronized concurrent | |
1104 | * accesses to the SMBus registers, with potentially bad effects. Thus you | |
1105 | * should be very careful when adding new entries: if SMM is accessing the | |
1106 | * Intel SMBus, this is a very good reason to leave it hidden. | |
a99acc83 JD |
1107 | * |
1108 | * Likewise, many recent laptops use ACPI for thermal management. If the | |
1109 | * ACPI DSDT code accesses the SMBus, then Linux should not access it | |
1110 | * natively, and keeping the SMBus hidden is the right thing to do. If you | |
1111 | * are about to add an entry in the table below, please first disassemble | |
1112 | * the DSDT and double-check that there is no code accessing the SMBus. | |
1da177e4 | 1113 | */ |
9d24a81e | 1114 | static int asus_hides_smbus; |
1da177e4 | 1115 | |
15856ad5 | 1116 | static void asus_hides_smbus_hostbridge(struct pci_dev *dev) |
1da177e4 LT |
1117 | { |
1118 | if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) { | |
1119 | if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB) | |
1120 | switch(dev->subsystem_device) { | |
a00db371 | 1121 | case 0x8025: /* P4B-LX */ |
1da177e4 LT |
1122 | case 0x8070: /* P4B */ |
1123 | case 0x8088: /* P4B533 */ | |
1124 | case 0x1626: /* L3C notebook */ | |
1125 | asus_hides_smbus = 1; | |
1126 | } | |
2f2d39d2 | 1127 | else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) |
1da177e4 LT |
1128 | switch(dev->subsystem_device) { |
1129 | case 0x80b1: /* P4GE-V */ | |
1130 | case 0x80b2: /* P4PE */ | |
1131 | case 0x8093: /* P4B533-V */ | |
1132 | asus_hides_smbus = 1; | |
1133 | } | |
2f2d39d2 | 1134 | else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB) |
1da177e4 LT |
1135 | switch(dev->subsystem_device) { |
1136 | case 0x8030: /* P4T533 */ | |
1137 | asus_hides_smbus = 1; | |
1138 | } | |
2f2d39d2 | 1139 | else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0) |
1da177e4 LT |
1140 | switch (dev->subsystem_device) { |
1141 | case 0x8070: /* P4G8X Deluxe */ | |
1142 | asus_hides_smbus = 1; | |
1143 | } | |
2f2d39d2 | 1144 | else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH) |
321311af JD |
1145 | switch (dev->subsystem_device) { |
1146 | case 0x80c9: /* PU-DLS */ | |
1147 | asus_hides_smbus = 1; | |
1148 | } | |
2f2d39d2 | 1149 | else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB) |
1da177e4 LT |
1150 | switch (dev->subsystem_device) { |
1151 | case 0x1751: /* M2N notebook */ | |
1152 | case 0x1821: /* M5N notebook */ | |
4096ed0f | 1153 | case 0x1897: /* A6L notebook */ |
1da177e4 LT |
1154 | asus_hides_smbus = 1; |
1155 | } | |
2f2d39d2 | 1156 | else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) |
1da177e4 LT |
1157 | switch (dev->subsystem_device) { |
1158 | case 0x184b: /* W1N notebook */ | |
1159 | case 0x186a: /* M6Ne notebook */ | |
1160 | asus_hides_smbus = 1; | |
1161 | } | |
2f2d39d2 | 1162 | else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) |
2e45785c JD |
1163 | switch (dev->subsystem_device) { |
1164 | case 0x80f2: /* P4P800-X */ | |
1165 | asus_hides_smbus = 1; | |
1166 | } | |
2f2d39d2 | 1167 | else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB) |
acc06632 M |
1168 | switch (dev->subsystem_device) { |
1169 | case 0x1882: /* M6V notebook */ | |
2d1e1c75 | 1170 | case 0x1977: /* A6VA notebook */ |
acc06632 M |
1171 | asus_hides_smbus = 1; |
1172 | } | |
1da177e4 LT |
1173 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) { |
1174 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
1175 | switch(dev->subsystem_device) { | |
1176 | case 0x088C: /* HP Compaq nc8000 */ | |
1177 | case 0x0890: /* HP Compaq nc6000 */ | |
1178 | asus_hides_smbus = 1; | |
1179 | } | |
2f2d39d2 | 1180 | else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) |
1da177e4 LT |
1181 | switch (dev->subsystem_device) { |
1182 | case 0x12bc: /* HP D330L */ | |
e3b1bd57 | 1183 | case 0x12bd: /* HP D530 */ |
74c57428 | 1184 | case 0x006a: /* HP Compaq nx9500 */ |
1da177e4 LT |
1185 | asus_hides_smbus = 1; |
1186 | } | |
677cc644 JD |
1187 | else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB) |
1188 | switch (dev->subsystem_device) { | |
1189 | case 0x12bf: /* HP xw4100 */ | |
1190 | asus_hides_smbus = 1; | |
1191 | } | |
1da177e4 LT |
1192 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) { |
1193 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
1194 | switch(dev->subsystem_device) { | |
1195 | case 0xC00C: /* Samsung P35 notebook */ | |
1196 | asus_hides_smbus = 1; | |
1197 | } | |
c87f883e RIZ |
1198 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) { |
1199 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
1200 | switch(dev->subsystem_device) { | |
1201 | case 0x0058: /* Compaq Evo N620c */ | |
1202 | asus_hides_smbus = 1; | |
1203 | } | |
d7698edc | 1204 | else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3) |
1205 | switch(dev->subsystem_device) { | |
1206 | case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */ | |
1207 | /* Motherboard doesn't have Host bridge | |
1208 | * subvendor/subdevice IDs, therefore checking | |
1209 | * its on-board VGA controller */ | |
1210 | asus_hides_smbus = 1; | |
1211 | } | |
8293b0f6 | 1212 | else if (dev->device == PCI_DEVICE_ID_INTEL_82801DB_2) |
10260d9a JD |
1213 | switch(dev->subsystem_device) { |
1214 | case 0x00b8: /* Compaq Evo D510 CMT */ | |
1215 | case 0x00b9: /* Compaq Evo D510 SFF */ | |
6b5096e4 | 1216 | case 0x00ba: /* Compaq Evo D510 USDT */ |
8293b0f6 DS |
1217 | /* Motherboard doesn't have Host bridge |
1218 | * subvendor/subdevice IDs and on-board VGA | |
1219 | * controller is disabled if an AGP card is | |
1220 | * inserted, therefore checking USB UHCI | |
1221 | * Controller #1 */ | |
10260d9a JD |
1222 | asus_hides_smbus = 1; |
1223 | } | |
27e46859 KH |
1224 | else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC) |
1225 | switch (dev->subsystem_device) { | |
1226 | case 0x001A: /* Compaq Deskpro EN SSF P667 815E */ | |
1227 | /* Motherboard doesn't have host bridge | |
1228 | * subvendor/subdevice IDs, therefore checking | |
1229 | * its on-board VGA controller */ | |
1230 | asus_hides_smbus = 1; | |
1231 | } | |
1da177e4 LT |
1232 | } |
1233 | } | |
652c538e AM |
1234 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge); |
1235 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge); | |
1236 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge); | |
1237 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge); | |
677cc644 | 1238 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge); |
652c538e AM |
1239 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge); |
1240 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge); | |
1241 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge); | |
1242 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge); | |
1243 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge); | |
1244 | ||
1245 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge); | |
8293b0f6 | 1246 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_2, asus_hides_smbus_hostbridge); |
27e46859 | 1247 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge); |
d7698edc | 1248 | |
1597cacb | 1249 | static void asus_hides_smbus_lpc(struct pci_dev *dev) |
1da177e4 LT |
1250 | { |
1251 | u16 val; | |
f7625980 | 1252 | |
1da177e4 LT |
1253 | if (likely(!asus_hides_smbus)) |
1254 | return; | |
1255 | ||
1256 | pci_read_config_word(dev, 0xF2, &val); | |
1257 | if (val & 0x8) { | |
1258 | pci_write_config_word(dev, 0xF2, val & (~0x8)); | |
1259 | pci_read_config_word(dev, 0xF2, &val); | |
1260 | if (val & 0x8) | |
f0fda801 | 1261 | dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", val); |
1da177e4 | 1262 | else |
f0fda801 | 1263 | dev_info(&dev->dev, "Enabled i801 SMBus device\n"); |
1da177e4 LT |
1264 | } |
1265 | } | |
652c538e AM |
1266 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc); |
1267 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc); | |
1268 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc); | |
1269 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc); | |
1270 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc); | |
1271 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc); | |
1272 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc); | |
e1a2a51e RW |
1273 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc); |
1274 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc); | |
1275 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc); | |
1276 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc); | |
1277 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc); | |
1278 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc); | |
1279 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc); | |
1597cacb | 1280 | |
e1a2a51e RW |
1281 | /* It appears we just have one such device. If not, we have a warning */ |
1282 | static void __iomem *asus_rcba_base; | |
1283 | static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev) | |
acc06632 | 1284 | { |
e1a2a51e | 1285 | u32 rcba; |
acc06632 M |
1286 | |
1287 | if (likely(!asus_hides_smbus)) | |
1288 | return; | |
e1a2a51e RW |
1289 | WARN_ON(asus_rcba_base); |
1290 | ||
acc06632 | 1291 | pci_read_config_dword(dev, 0xF0, &rcba); |
e1a2a51e RW |
1292 | /* use bits 31:14, 16 kB aligned */ |
1293 | asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); | |
1294 | if (asus_rcba_base == NULL) | |
1295 | return; | |
1296 | } | |
1297 | ||
1298 | static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev) | |
1299 | { | |
1300 | u32 val; | |
1301 | ||
1302 | if (likely(!asus_hides_smbus || !asus_rcba_base)) | |
1303 | return; | |
1304 | /* read the Function Disable register, dword mode only */ | |
1305 | val = readl(asus_rcba_base + 0x3418); | |
1306 | writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */ | |
1307 | } | |
1308 | ||
1309 | static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev) | |
1310 | { | |
1311 | if (likely(!asus_hides_smbus || !asus_rcba_base)) | |
1312 | return; | |
1313 | iounmap(asus_rcba_base); | |
1314 | asus_rcba_base = NULL; | |
f0fda801 | 1315 | dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n"); |
acc06632 | 1316 | } |
e1a2a51e RW |
1317 | |
1318 | static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev) | |
1319 | { | |
1320 | asus_hides_smbus_lpc_ich6_suspend(dev); | |
1321 | asus_hides_smbus_lpc_ich6_resume_early(dev); | |
1322 | asus_hides_smbus_lpc_ich6_resume(dev); | |
1323 | } | |
652c538e | 1324 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6); |
e1a2a51e RW |
1325 | DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend); |
1326 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume); | |
1327 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early); | |
ce007ea5 | 1328 | |
1da177e4 LT |
1329 | /* |
1330 | * SiS 96x south bridge: BIOS typically hides SMBus device... | |
1331 | */ | |
1597cacb | 1332 | static void quirk_sis_96x_smbus(struct pci_dev *dev) |
1da177e4 LT |
1333 | { |
1334 | u8 val = 0; | |
1da177e4 | 1335 | pci_read_config_byte(dev, 0x77, &val); |
2f5c33b3 | 1336 | if (val & 0x10) { |
f0fda801 | 1337 | dev_info(&dev->dev, "Enabling SiS 96x SMBus\n"); |
2f5c33b3 MH |
1338 | pci_write_config_byte(dev, 0x77, val & ~0x10); |
1339 | } | |
1da177e4 | 1340 | } |
652c538e AM |
1341 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus); |
1342 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus); | |
1343 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus); | |
1344 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus); | |
e1a2a51e RW |
1345 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus); |
1346 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus); | |
1347 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus); | |
1348 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus); | |
1da177e4 | 1349 | |
1da177e4 LT |
1350 | /* |
1351 | * ... This is further complicated by the fact that some SiS96x south | |
1352 | * bridges pretend to be 85C503/5513 instead. In that case see if we | |
1353 | * spotted a compatible north bridge to make sure. | |
1354 | * (pci_find_device doesn't work yet) | |
1355 | * | |
1356 | * We can also enable the sis96x bit in the discovery register.. | |
1357 | */ | |
1da177e4 LT |
1358 | #define SIS_DETECT_REGISTER 0x40 |
1359 | ||
1597cacb | 1360 | static void quirk_sis_503(struct pci_dev *dev) |
1da177e4 LT |
1361 | { |
1362 | u8 reg; | |
1363 | u16 devid; | |
1364 | ||
1365 | pci_read_config_byte(dev, SIS_DETECT_REGISTER, ®); | |
1366 | pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6)); | |
1367 | pci_read_config_word(dev, PCI_DEVICE_ID, &devid); | |
1368 | if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) { | |
1369 | pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg); | |
1370 | return; | |
1371 | } | |
1372 | ||
1da177e4 | 1373 | /* |
2f5c33b3 MH |
1374 | * Ok, it now shows up as a 96x.. run the 96x quirk by |
1375 | * hand in case it has already been processed. | |
1376 | * (depends on link order, which is apparently not guaranteed) | |
1da177e4 LT |
1377 | */ |
1378 | dev->device = devid; | |
2f5c33b3 | 1379 | quirk_sis_96x_smbus(dev); |
1da177e4 | 1380 | } |
652c538e | 1381 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503); |
e1a2a51e | 1382 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503); |
1da177e4 | 1383 | |
1da177e4 | 1384 | |
e5548e96 BJD |
1385 | /* |
1386 | * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller | |
1387 | * and MC97 modem controller are disabled when a second PCI soundcard is | |
1388 | * present. This patch, tweaking the VT8237 ISA bridge, enables them. | |
1389 | * -- bjd | |
1390 | */ | |
1597cacb | 1391 | static void asus_hides_ac97_lpc(struct pci_dev *dev) |
e5548e96 BJD |
1392 | { |
1393 | u8 val; | |
1394 | int asus_hides_ac97 = 0; | |
1395 | ||
1396 | if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) { | |
1397 | if (dev->device == PCI_DEVICE_ID_VIA_8237) | |
1398 | asus_hides_ac97 = 1; | |
1399 | } | |
1400 | ||
1401 | if (!asus_hides_ac97) | |
1402 | return; | |
1403 | ||
1404 | pci_read_config_byte(dev, 0x50, &val); | |
1405 | if (val & 0xc0) { | |
1406 | pci_write_config_byte(dev, 0x50, val & (~0xc0)); | |
1407 | pci_read_config_byte(dev, 0x50, &val); | |
1408 | if (val & 0xc0) | |
f0fda801 | 1409 | dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", val); |
e5548e96 | 1410 | else |
f0fda801 | 1411 | dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n"); |
e5548e96 BJD |
1412 | } |
1413 | } | |
652c538e | 1414 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc); |
e1a2a51e | 1415 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc); |
1597cacb | 1416 | |
77967052 | 1417 | #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE) |
15e0c694 AC |
1418 | |
1419 | /* | |
1420 | * If we are using libata we can drive this chip properly but must | |
1421 | * do this early on to make the additional device appear during | |
1422 | * the PCI scanning. | |
1423 | */ | |
5ee2ae7f | 1424 | static void quirk_jmicron_ata(struct pci_dev *pdev) |
15e0c694 | 1425 | { |
e34bb370 | 1426 | u32 conf1, conf5, class; |
15e0c694 AC |
1427 | u8 hdr; |
1428 | ||
1429 | /* Only poke fn 0 */ | |
1430 | if (PCI_FUNC(pdev->devfn)) | |
1431 | return; | |
1432 | ||
5ee2ae7f TH |
1433 | pci_read_config_dword(pdev, 0x40, &conf1); |
1434 | pci_read_config_dword(pdev, 0x80, &conf5); | |
15e0c694 | 1435 | |
5ee2ae7f TH |
1436 | conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */ |
1437 | conf5 &= ~(1 << 24); /* Clear bit 24 */ | |
1438 | ||
1439 | switch (pdev->device) { | |
4daedcfe TH |
1440 | case PCI_DEVICE_ID_JMICRON_JMB360: /* SATA single port */ |
1441 | case PCI_DEVICE_ID_JMICRON_JMB362: /* SATA dual ports */ | |
5b6ae5ba | 1442 | case PCI_DEVICE_ID_JMICRON_JMB364: /* SATA dual ports */ |
5ee2ae7f TH |
1443 | /* The controller should be in single function ahci mode */ |
1444 | conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */ | |
1445 | break; | |
1446 | ||
1447 | case PCI_DEVICE_ID_JMICRON_JMB365: | |
1448 | case PCI_DEVICE_ID_JMICRON_JMB366: | |
1449 | /* Redirect IDE second PATA port to the right spot */ | |
1450 | conf5 |= (1 << 24); | |
1451 | /* Fall through */ | |
1452 | case PCI_DEVICE_ID_JMICRON_JMB361: | |
1453 | case PCI_DEVICE_ID_JMICRON_JMB363: | |
5b6ae5ba | 1454 | case PCI_DEVICE_ID_JMICRON_JMB369: |
5ee2ae7f TH |
1455 | /* Enable dual function mode, AHCI on fn 0, IDE fn1 */ |
1456 | /* Set the class codes correctly and then direct IDE 0 */ | |
3a9e3a51 | 1457 | conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */ |
5ee2ae7f TH |
1458 | break; |
1459 | ||
1460 | case PCI_DEVICE_ID_JMICRON_JMB368: | |
1461 | /* The controller should be in single function IDE mode */ | |
1462 | conf1 |= 0x00C00000; /* Set 22, 23 */ | |
1463 | break; | |
15e0c694 | 1464 | } |
5ee2ae7f TH |
1465 | |
1466 | pci_write_config_dword(pdev, 0x40, conf1); | |
1467 | pci_write_config_dword(pdev, 0x80, conf5); | |
1468 | ||
1469 | /* Update pdev accordingly */ | |
1470 | pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr); | |
1471 | pdev->hdr_type = hdr & 0x7f; | |
1472 | pdev->multifunction = !!(hdr & 0x80); | |
e34bb370 TH |
1473 | |
1474 | pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class); | |
1475 | pdev->class = class >> 8; | |
15e0c694 | 1476 | } |
5ee2ae7f TH |
1477 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata); |
1478 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata); | |
4daedcfe | 1479 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata); |
5ee2ae7f | 1480 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata); |
5b6ae5ba | 1481 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata); |
5ee2ae7f TH |
1482 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata); |
1483 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata); | |
1484 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata); | |
5b6ae5ba | 1485 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata); |
e1a2a51e RW |
1486 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata); |
1487 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata); | |
4daedcfe | 1488 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata); |
e1a2a51e | 1489 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata); |
5b6ae5ba | 1490 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata); |
e1a2a51e RW |
1491 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata); |
1492 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata); | |
1493 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata); | |
5b6ae5ba | 1494 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata); |
15e0c694 AC |
1495 | |
1496 | #endif | |
1497 | ||
1da177e4 | 1498 | #ifdef CONFIG_X86_IO_APIC |
15856ad5 | 1499 | static void quirk_alder_ioapic(struct pci_dev *pdev) |
1da177e4 LT |
1500 | { |
1501 | int i; | |
1502 | ||
1503 | if ((pdev->class >> 8) != 0xff00) | |
1504 | return; | |
1505 | ||
1506 | /* the first BAR is the location of the IO APIC...we must | |
1507 | * not touch this (and it's already covered by the fixmap), so | |
1508 | * forcibly insert it into the resource tree */ | |
1509 | if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0)) | |
1510 | insert_resource(&iomem_resource, &pdev->resource[0]); | |
1511 | ||
1512 | /* The next five BARs all seem to be rubbish, so just clean | |
1513 | * them out */ | |
1514 | for (i=1; i < 6; i++) { | |
1515 | memset(&pdev->resource[i], 0, sizeof(pdev->resource[i])); | |
1516 | } | |
1517 | ||
1518 | } | |
652c538e | 1519 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic); |
1da177e4 LT |
1520 | #endif |
1521 | ||
15856ad5 | 1522 | static void quirk_pcie_mch(struct pci_dev *pdev) |
1da177e4 | 1523 | { |
0ba379ec EB |
1524 | pci_msi_off(pdev); |
1525 | pdev->no_msi = 1; | |
1da177e4 | 1526 | } |
652c538e AM |
1527 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch); |
1528 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch); | |
1529 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch); | |
1da177e4 | 1530 | |
4602b88d KA |
1531 | |
1532 | /* | |
1533 | * It's possible for the MSI to get corrupted if shpc and acpi | |
1534 | * are used together on certain PXH-based systems. | |
1535 | */ | |
15856ad5 | 1536 | static void quirk_pcie_pxh(struct pci_dev *dev) |
4602b88d | 1537 | { |
f5f2b131 | 1538 | pci_msi_off(dev); |
4602b88d | 1539 | dev->no_msi = 1; |
f0fda801 | 1540 | dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n"); |
4602b88d KA |
1541 | } |
1542 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh); | |
1543 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh); | |
1544 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh); | |
1545 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh); | |
1546 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh); | |
1547 | ||
ffadcc2f KCA |
1548 | /* |
1549 | * Some Intel PCI Express chipsets have trouble with downstream | |
1550 | * device power management. | |
1551 | */ | |
1552 | static void quirk_intel_pcie_pm(struct pci_dev * dev) | |
1553 | { | |
1554 | pci_pm_d3_delay = 120; | |
1555 | dev->no_d1d2 = 1; | |
1556 | } | |
1557 | ||
1558 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm); | |
1559 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm); | |
1560 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm); | |
1561 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm); | |
1562 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm); | |
1563 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm); | |
1564 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm); | |
1565 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm); | |
1566 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm); | |
1567 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm); | |
1568 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm); | |
1569 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm); | |
1570 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm); | |
1571 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm); | |
1572 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm); | |
1573 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm); | |
1574 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm); | |
1575 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm); | |
1576 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm); | |
1577 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm); | |
1578 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm); | |
4602b88d | 1579 | |
426b3b8d | 1580 | #ifdef CONFIG_X86_IO_APIC |
e1d3a908 SA |
1581 | /* |
1582 | * Boot interrupts on some chipsets cannot be turned off. For these chipsets, | |
1583 | * remap the original interrupt in the linux kernel to the boot interrupt, so | |
1584 | * that a PCI device's interrupt handler is installed on the boot interrupt | |
1585 | * line instead. | |
1586 | */ | |
1587 | static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev) | |
1588 | { | |
41b9eb26 | 1589 | if (noioapicquirk || noioapicreroute) |
e1d3a908 SA |
1590 | return; |
1591 | ||
1592 | dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT; | |
fdcdaf6c BH |
1593 | dev_info(&dev->dev, "rerouting interrupts for [%04x:%04x]\n", |
1594 | dev->vendor, dev->device); | |
e1d3a908 | 1595 | } |
88d1dce3 OD |
1596 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel); |
1597 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel); | |
1598 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel); | |
1599 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel); | |
1600 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel); | |
1601 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel); | |
1602 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel); | |
1603 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel); | |
1604 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel); | |
1605 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel); | |
1606 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel); | |
1607 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel); | |
1608 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel); | |
1609 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel); | |
1610 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel); | |
1611 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel); | |
e1d3a908 | 1612 | |
426b3b8d SA |
1613 | /* |
1614 | * On some chipsets we can disable the generation of legacy INTx boot | |
1615 | * interrupts. | |
1616 | */ | |
1617 | ||
1618 | /* | |
1619 | * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no | |
1620 | * 300641-004US, section 5.7.3. | |
1621 | */ | |
1622 | #define INTEL_6300_IOAPIC_ABAR 0x40 | |
1623 | #define INTEL_6300_DISABLE_BOOT_IRQ (1<<14) | |
1624 | ||
1625 | static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev) | |
1626 | { | |
1627 | u16 pci_config_word; | |
1628 | ||
1629 | if (noioapicquirk) | |
1630 | return; | |
1631 | ||
1632 | pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word); | |
1633 | pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ; | |
1634 | pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word); | |
1635 | ||
fdcdaf6c BH |
1636 | dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", |
1637 | dev->vendor, dev->device); | |
426b3b8d | 1638 | } |
f7625980 BH |
1639 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt); |
1640 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt); | |
77251188 OD |
1641 | |
1642 | /* | |
1643 | * disable boot interrupts on HT-1000 | |
1644 | */ | |
1645 | #define BC_HT1000_FEATURE_REG 0x64 | |
1646 | #define BC_HT1000_PIC_REGS_ENABLE (1<<0) | |
1647 | #define BC_HT1000_MAP_IDX 0xC00 | |
1648 | #define BC_HT1000_MAP_DATA 0xC01 | |
1649 | ||
1650 | static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev) | |
1651 | { | |
1652 | u32 pci_config_dword; | |
1653 | u8 irq; | |
1654 | ||
1655 | if (noioapicquirk) | |
1656 | return; | |
1657 | ||
1658 | pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword); | |
1659 | pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword | | |
1660 | BC_HT1000_PIC_REGS_ENABLE); | |
1661 | ||
1662 | for (irq = 0x10; irq < 0x10 + 32; irq++) { | |
1663 | outb(irq, BC_HT1000_MAP_IDX); | |
1664 | outb(0x00, BC_HT1000_MAP_DATA); | |
1665 | } | |
1666 | ||
1667 | pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword); | |
1668 | ||
fdcdaf6c BH |
1669 | dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", |
1670 | dev->vendor, dev->device); | |
77251188 | 1671 | } |
f7625980 BH |
1672 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt); |
1673 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt); | |
542622da OD |
1674 | |
1675 | /* | |
1676 | * disable boot interrupts on AMD and ATI chipsets | |
1677 | */ | |
1678 | /* | |
1679 | * NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131 | |
1680 | * rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode | |
1681 | * (due to an erratum). | |
1682 | */ | |
1683 | #define AMD_813X_MISC 0x40 | |
1684 | #define AMD_813X_NOIOAMODE (1<<0) | |
4fd8bdc5 | 1685 | #define AMD_813X_REV_B1 0x12 |
bbe19443 | 1686 | #define AMD_813X_REV_B2 0x13 |
542622da OD |
1687 | |
1688 | static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev) | |
1689 | { | |
1690 | u32 pci_config_dword; | |
1691 | ||
1692 | if (noioapicquirk) | |
1693 | return; | |
4fd8bdc5 SA |
1694 | if ((dev->revision == AMD_813X_REV_B1) || |
1695 | (dev->revision == AMD_813X_REV_B2)) | |
bbe19443 | 1696 | return; |
542622da OD |
1697 | |
1698 | pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword); | |
1699 | pci_config_dword &= ~AMD_813X_NOIOAMODE; | |
1700 | pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword); | |
1701 | ||
fdcdaf6c BH |
1702 | dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", |
1703 | dev->vendor, dev->device); | |
542622da | 1704 | } |
4fd8bdc5 SA |
1705 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt); |
1706 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt); | |
1707 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt); | |
1708 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt); | |
542622da OD |
1709 | |
1710 | #define AMD_8111_PCI_IRQ_ROUTING 0x56 | |
1711 | ||
1712 | static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev) | |
1713 | { | |
1714 | u16 pci_config_word; | |
1715 | ||
1716 | if (noioapicquirk) | |
1717 | return; | |
1718 | ||
1719 | pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word); | |
1720 | if (!pci_config_word) { | |
fdcdaf6c BH |
1721 | dev_info(&dev->dev, "boot interrupts on device [%04x:%04x] " |
1722 | "already disabled\n", dev->vendor, dev->device); | |
542622da OD |
1723 | return; |
1724 | } | |
1725 | pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0); | |
fdcdaf6c BH |
1726 | dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", |
1727 | dev->vendor, dev->device); | |
542622da | 1728 | } |
f7625980 BH |
1729 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt); |
1730 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt); | |
426b3b8d SA |
1731 | #endif /* CONFIG_X86_IO_APIC */ |
1732 | ||
33dced2e SS |
1733 | /* |
1734 | * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size | |
1735 | * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes. | |
1736 | * Re-allocate the region if needed... | |
1737 | */ | |
15856ad5 | 1738 | static void quirk_tc86c001_ide(struct pci_dev *dev) |
33dced2e SS |
1739 | { |
1740 | struct resource *r = &dev->resource[0]; | |
1741 | ||
1742 | if (r->start & 0x8) { | |
1743 | r->start = 0; | |
1744 | r->end = 0xf; | |
1745 | } | |
1746 | } | |
1747 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2, | |
1748 | PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE, | |
1749 | quirk_tc86c001_ide); | |
1750 | ||
21c5fd97 IA |
1751 | /* |
1752 | * PLX PCI 9050 PCI Target bridge controller has an errata that prevents the | |
1753 | * local configuration registers accessible via BAR0 (memory) or BAR1 (i/o) | |
1754 | * being read correctly if bit 7 of the base address is set. | |
1755 | * The BAR0 or BAR1 region may be disabled (size 0) or enabled (size 128). | |
1756 | * Re-allocate the regions to a 256-byte boundary if necessary. | |
1757 | */ | |
193c0d68 | 1758 | static void quirk_plx_pci9050(struct pci_dev *dev) |
21c5fd97 IA |
1759 | { |
1760 | unsigned int bar; | |
1761 | ||
1762 | /* Fixed in revision 2 (PCI 9052). */ | |
1763 | if (dev->revision >= 2) | |
1764 | return; | |
1765 | for (bar = 0; bar <= 1; bar++) | |
1766 | if (pci_resource_len(dev, bar) == 0x80 && | |
1767 | (pci_resource_start(dev, bar) & 0x80)) { | |
1768 | struct resource *r = &dev->resource[bar]; | |
1769 | dev_info(&dev->dev, | |
1770 | "Re-allocating PLX PCI 9050 BAR %u to length 256 to avoid bit 7 bug\n", | |
1771 | bar); | |
1772 | r->start = 0; | |
1773 | r->end = 0xff; | |
1774 | } | |
1775 | } | |
1776 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050, | |
1777 | quirk_plx_pci9050); | |
2794bb28 IA |
1778 | /* |
1779 | * The following Meilhaus (vendor ID 0x1402) device IDs (amongst others) | |
1780 | * may be using the PLX PCI 9050: 0x0630, 0x0940, 0x0950, 0x0960, 0x100b, | |
1781 | * 0x1400, 0x140a, 0x140b, 0x14e0, 0x14ea, 0x14eb, 0x1604, 0x1608, 0x160c, | |
1782 | * 0x168f, 0x2000, 0x2600, 0x3000, 0x810a, 0x810b. | |
1783 | * | |
1784 | * Currently, device IDs 0x2000 and 0x2600 are used by the Comedi "me_daq" | |
1785 | * driver. | |
1786 | */ | |
1787 | DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2000, quirk_plx_pci9050); | |
1788 | DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2600, quirk_plx_pci9050); | |
21c5fd97 | 1789 | |
15856ad5 | 1790 | static void quirk_netmos(struct pci_dev *dev) |
1da177e4 LT |
1791 | { |
1792 | unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4; | |
1793 | unsigned int num_serial = dev->subsystem_device & 0xf; | |
1794 | ||
1795 | /* | |
1796 | * These Netmos parts are multiport serial devices with optional | |
1797 | * parallel ports. Even when parallel ports are present, they | |
1798 | * are identified as class SERIAL, which means the serial driver | |
1799 | * will claim them. To prevent this, mark them as class OTHER. | |
1800 | * These combo devices should be claimed by parport_serial. | |
1801 | * | |
1802 | * The subdevice ID is of the form 0x00PS, where <P> is the number | |
1803 | * of parallel ports and <S> is the number of serial ports. | |
1804 | */ | |
1805 | switch (dev->device) { | |
4c9c1686 JS |
1806 | case PCI_DEVICE_ID_NETMOS_9835: |
1807 | /* Well, this rule doesn't hold for the following 9835 device */ | |
1808 | if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM && | |
1809 | dev->subsystem_device == 0x0299) | |
1810 | return; | |
1da177e4 LT |
1811 | case PCI_DEVICE_ID_NETMOS_9735: |
1812 | case PCI_DEVICE_ID_NETMOS_9745: | |
1da177e4 LT |
1813 | case PCI_DEVICE_ID_NETMOS_9845: |
1814 | case PCI_DEVICE_ID_NETMOS_9855: | |
08803efe | 1815 | if (num_parallel) { |
f0fda801 | 1816 | dev_info(&dev->dev, "Netmos %04x (%u parallel, " |
1da177e4 LT |
1817 | "%u serial); changing class SERIAL to OTHER " |
1818 | "(use parport_serial)\n", | |
1819 | dev->device, num_parallel, num_serial); | |
1820 | dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) | | |
1821 | (dev->class & 0xff); | |
1822 | } | |
1823 | } | |
1824 | } | |
08803efe YL |
1825 | DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, |
1826 | PCI_CLASS_COMMUNICATION_SERIAL, 8, quirk_netmos); | |
1da177e4 | 1827 | |
15856ad5 | 1828 | static void quirk_e100_interrupt(struct pci_dev *dev) |
16a74744 | 1829 | { |
e64aeccb | 1830 | u16 command, pmcsr; |
16a74744 BH |
1831 | u8 __iomem *csr; |
1832 | u8 cmd_hi; | |
1833 | ||
1834 | switch (dev->device) { | |
1835 | /* PCI IDs taken from drivers/net/e100.c */ | |
1836 | case 0x1029: | |
1837 | case 0x1030 ... 0x1034: | |
1838 | case 0x1038 ... 0x103E: | |
1839 | case 0x1050 ... 0x1057: | |
1840 | case 0x1059: | |
1841 | case 0x1064 ... 0x106B: | |
1842 | case 0x1091 ... 0x1095: | |
1843 | case 0x1209: | |
1844 | case 0x1229: | |
1845 | case 0x2449: | |
1846 | case 0x2459: | |
1847 | case 0x245D: | |
1848 | case 0x27DC: | |
1849 | break; | |
1850 | default: | |
1851 | return; | |
1852 | } | |
1853 | ||
1854 | /* | |
1855 | * Some firmware hands off the e100 with interrupts enabled, | |
1856 | * which can cause a flood of interrupts if packets are | |
1857 | * received before the driver attaches to the device. So | |
1858 | * disable all e100 interrupts here. The driver will | |
1859 | * re-enable them when it's ready. | |
1860 | */ | |
1861 | pci_read_config_word(dev, PCI_COMMAND, &command); | |
16a74744 | 1862 | |
1bef7dc0 | 1863 | if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0)) |
16a74744 BH |
1864 | return; |
1865 | ||
e64aeccb IK |
1866 | /* |
1867 | * Check that the device is in the D0 power state. If it's not, | |
1868 | * there is no point to look any further. | |
1869 | */ | |
728cdb75 YW |
1870 | if (dev->pm_cap) { |
1871 | pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr); | |
e64aeccb IK |
1872 | if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0) |
1873 | return; | |
1874 | } | |
1875 | ||
1bef7dc0 BH |
1876 | /* Convert from PCI bus to resource space. */ |
1877 | csr = ioremap(pci_resource_start(dev, 0), 8); | |
16a74744 | 1878 | if (!csr) { |
f0fda801 | 1879 | dev_warn(&dev->dev, "Can't map e100 registers\n"); |
16a74744 BH |
1880 | return; |
1881 | } | |
1882 | ||
1883 | cmd_hi = readb(csr + 3); | |
1884 | if (cmd_hi == 0) { | |
f0fda801 | 1885 | dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; " |
1886 | "disabling\n"); | |
16a74744 BH |
1887 | writeb(1, csr + 3); |
1888 | } | |
1889 | ||
1890 | iounmap(csr); | |
1891 | } | |
4c5b28e2 YL |
1892 | DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, |
1893 | PCI_CLASS_NETWORK_ETHERNET, 8, quirk_e100_interrupt); | |
a5312e28 | 1894 | |
649426ef AD |
1895 | /* |
1896 | * The 82575 and 82598 may experience data corruption issues when transitioning | |
1897 | * out of L0S. To prevent this we need to disable L0S on the pci-e link | |
1898 | */ | |
15856ad5 | 1899 | static void quirk_disable_aspm_l0s(struct pci_dev *dev) |
649426ef AD |
1900 | { |
1901 | dev_info(&dev->dev, "Disabling L0s\n"); | |
1902 | pci_disable_link_state(dev, PCIE_LINK_STATE_L0S); | |
1903 | } | |
1904 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s); | |
1905 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s); | |
1906 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s); | |
1907 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s); | |
1908 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s); | |
1909 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s); | |
1910 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s); | |
1911 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s); | |
1912 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s); | |
1913 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s); | |
1914 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s); | |
1915 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s); | |
1916 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s); | |
1917 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s); | |
1918 | ||
15856ad5 | 1919 | static void fixup_rev1_53c810(struct pci_dev *dev) |
a5312e28 IK |
1920 | { |
1921 | /* rev 1 ncr53c810 chips don't set the class at all which means | |
1922 | * they don't get their resources remapped. Fix that here. | |
1923 | */ | |
1924 | ||
1925 | if (dev->class == PCI_CLASS_NOT_DEFINED) { | |
f0fda801 | 1926 | dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n"); |
a5312e28 IK |
1927 | dev->class = PCI_CLASS_STORAGE_SCSI; |
1928 | } | |
1929 | } | |
1930 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810); | |
1931 | ||
9d265124 | 1932 | /* Enable 1k I/O space granularity on the Intel P64H2 */ |
15856ad5 | 1933 | static void quirk_p64h2_1k_io(struct pci_dev *dev) |
9d265124 DY |
1934 | { |
1935 | u16 en1k; | |
9d265124 DY |
1936 | |
1937 | pci_read_config_word(dev, 0x40, &en1k); | |
1938 | ||
1939 | if (en1k & 0x200) { | |
f0fda801 | 1940 | dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n"); |
2b28ae19 | 1941 | dev->io_window_1k = 1; |
9d265124 DY |
1942 | } |
1943 | } | |
1944 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io); | |
1945 | ||
cf34a8e0 BG |
1946 | /* Under some circumstances, AER is not linked with extended capabilities. |
1947 | * Force it to be linked by setting the corresponding control bit in the | |
1948 | * config space. | |
1949 | */ | |
1597cacb | 1950 | static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev) |
cf34a8e0 BG |
1951 | { |
1952 | uint8_t b; | |
1953 | if (pci_read_config_byte(dev, 0xf41, &b) == 0) { | |
1954 | if (!(b & 0x20)) { | |
1955 | pci_write_config_byte(dev, 0xf41, b | 0x20); | |
f0fda801 | 1956 | dev_info(&dev->dev, |
1957 | "Linking AER extended capability\n"); | |
cf34a8e0 BG |
1958 | } |
1959 | } | |
1960 | } | |
1961 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, | |
1962 | quirk_nvidia_ck804_pcie_aer_ext_cap); | |
e1a2a51e | 1963 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, |
1597cacb | 1964 | quirk_nvidia_ck804_pcie_aer_ext_cap); |
cf34a8e0 | 1965 | |
15856ad5 | 1966 | static void quirk_via_cx700_pci_parking_caching(struct pci_dev *dev) |
53a9bf42 TY |
1967 | { |
1968 | /* | |
1969 | * Disable PCI Bus Parking and PCI Master read caching on CX700 | |
1970 | * which causes unspecified timing errors with a VT6212L on the PCI | |
ca846392 TY |
1971 | * bus leading to USB2.0 packet loss. |
1972 | * | |
1973 | * This quirk is only enabled if a second (on the external PCI bus) | |
1974 | * VT6212L is found -- the CX700 core itself also contains a USB | |
1975 | * host controller with the same PCI ID as the VT6212L. | |
53a9bf42 TY |
1976 | */ |
1977 | ||
ca846392 TY |
1978 | /* Count VT6212L instances */ |
1979 | struct pci_dev *p = pci_get_device(PCI_VENDOR_ID_VIA, | |
1980 | PCI_DEVICE_ID_VIA_8235_USB_2, NULL); | |
53a9bf42 | 1981 | uint8_t b; |
ca846392 TY |
1982 | |
1983 | /* p should contain the first (internal) VT6212L -- see if we have | |
1984 | an external one by searching again */ | |
1985 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235_USB_2, p); | |
1986 | if (!p) | |
1987 | return; | |
1988 | pci_dev_put(p); | |
1989 | ||
53a9bf42 TY |
1990 | if (pci_read_config_byte(dev, 0x76, &b) == 0) { |
1991 | if (b & 0x40) { | |
1992 | /* Turn off PCI Bus Parking */ | |
1993 | pci_write_config_byte(dev, 0x76, b ^ 0x40); | |
1994 | ||
bc043274 TY |
1995 | dev_info(&dev->dev, |
1996 | "Disabling VIA CX700 PCI parking\n"); | |
1997 | } | |
1998 | } | |
1999 | ||
2000 | if (pci_read_config_byte(dev, 0x72, &b) == 0) { | |
2001 | if (b != 0) { | |
53a9bf42 TY |
2002 | /* Turn off PCI Master read caching */ |
2003 | pci_write_config_byte(dev, 0x72, 0x0); | |
bc043274 TY |
2004 | |
2005 | /* Set PCI Master Bus time-out to "1x16 PCLK" */ | |
53a9bf42 | 2006 | pci_write_config_byte(dev, 0x75, 0x1); |
bc043274 TY |
2007 | |
2008 | /* Disable "Read FIFO Timer" */ | |
53a9bf42 TY |
2009 | pci_write_config_byte(dev, 0x77, 0x0); |
2010 | ||
d6505a52 | 2011 | dev_info(&dev->dev, |
bc043274 | 2012 | "Disabling VIA CX700 PCI caching\n"); |
53a9bf42 TY |
2013 | } |
2014 | } | |
2015 | } | |
ca846392 | 2016 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching); |
53a9bf42 | 2017 | |
99cb233d BL |
2018 | /* |
2019 | * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the | |
2020 | * VPD end tag will hang the device. This problem was initially | |
2021 | * observed when a vpd entry was created in sysfs | |
2022 | * ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry | |
2023 | * will dump 32k of data. Reading a full 32k will cause an access | |
2024 | * beyond the VPD end tag causing the device to hang. Once the device | |
2025 | * is hung, the bnx2 driver will not be able to reset the device. | |
2026 | * We believe that it is legal to read beyond the end tag and | |
2027 | * therefore the solution is to limit the read/write length. | |
2028 | */ | |
15856ad5 | 2029 | static void quirk_brcm_570x_limit_vpd(struct pci_dev *dev) |
99cb233d | 2030 | { |
9d82d8ea | 2031 | /* |
35405f25 DH |
2032 | * Only disable the VPD capability for 5706, 5706S, 5708, |
2033 | * 5708S and 5709 rev. A | |
9d82d8ea | 2034 | */ |
99cb233d | 2035 | if ((dev->device == PCI_DEVICE_ID_NX2_5706) || |
35405f25 | 2036 | (dev->device == PCI_DEVICE_ID_NX2_5706S) || |
99cb233d | 2037 | (dev->device == PCI_DEVICE_ID_NX2_5708) || |
9d82d8ea | 2038 | (dev->device == PCI_DEVICE_ID_NX2_5708S) || |
99cb233d BL |
2039 | ((dev->device == PCI_DEVICE_ID_NX2_5709) && |
2040 | (dev->revision & 0xf0) == 0x0)) { | |
2041 | if (dev->vpd) | |
2042 | dev->vpd->len = 0x80; | |
2043 | } | |
2044 | } | |
2045 | ||
bffadffd YZ |
2046 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
2047 | PCI_DEVICE_ID_NX2_5706, | |
2048 | quirk_brcm_570x_limit_vpd); | |
2049 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2050 | PCI_DEVICE_ID_NX2_5706S, | |
2051 | quirk_brcm_570x_limit_vpd); | |
2052 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2053 | PCI_DEVICE_ID_NX2_5708, | |
2054 | quirk_brcm_570x_limit_vpd); | |
2055 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2056 | PCI_DEVICE_ID_NX2_5708S, | |
2057 | quirk_brcm_570x_limit_vpd); | |
2058 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2059 | PCI_DEVICE_ID_NX2_5709, | |
2060 | quirk_brcm_570x_limit_vpd); | |
2061 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2062 | PCI_DEVICE_ID_NX2_5709S, | |
2063 | quirk_brcm_570x_limit_vpd); | |
99cb233d | 2064 | |
25e742b2 | 2065 | static void quirk_brcm_5719_limit_mrrs(struct pci_dev *dev) |
0b471506 MC |
2066 | { |
2067 | u32 rev; | |
2068 | ||
2069 | pci_read_config_dword(dev, 0xf4, &rev); | |
2070 | ||
2071 | /* Only CAP the MRRS if the device is a 5719 A0 */ | |
2072 | if (rev == 0x05719000) { | |
2073 | int readrq = pcie_get_readrq(dev); | |
2074 | if (readrq > 2048) | |
2075 | pcie_set_readrq(dev, 2048); | |
2076 | } | |
2077 | } | |
2078 | ||
2079 | DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_BROADCOM, | |
2080 | PCI_DEVICE_ID_TIGON3_5719, | |
2081 | quirk_brcm_5719_limit_mrrs); | |
2082 | ||
26c56dc0 MM |
2083 | /* Originally in EDAC sources for i82875P: |
2084 | * Intel tells BIOS developers to hide device 6 which | |
2085 | * configures the overflow device access containing | |
2086 | * the DRBs - this is where we expose device 6. | |
2087 | * http://www.x86-secret.com/articles/tweak/pat/patsecrets-2.htm | |
2088 | */ | |
15856ad5 | 2089 | static void quirk_unhide_mch_dev6(struct pci_dev *dev) |
26c56dc0 MM |
2090 | { |
2091 | u8 reg; | |
2092 | ||
2093 | if (pci_read_config_byte(dev, 0xF4, ®) == 0 && !(reg & 0x02)) { | |
2094 | dev_info(&dev->dev, "Enabling MCH 'Overflow' Device\n"); | |
2095 | pci_write_config_byte(dev, 0xF4, reg | 0x02); | |
2096 | } | |
2097 | } | |
2098 | ||
2099 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, | |
2100 | quirk_unhide_mch_dev6); | |
2101 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, | |
2102 | quirk_unhide_mch_dev6); | |
2103 | ||
12962267 | 2104 | #ifdef CONFIG_TILEPRO |
f02cbbe6 | 2105 | /* |
12962267 | 2106 | * The Tilera TILEmpower tilepro platform needs to set the link speed |
f02cbbe6 CM |
2107 | * to 2.5GT(Giga-Transfers)/s (Gen 1). The default link speed |
2108 | * setting is 5GT/s (Gen 2). 0x98 is the Link Control2 PCIe | |
2109 | * capability register of the PEX8624 PCIe switch. The switch | |
2110 | * supports link speed auto negotiation, but falsely sets | |
2111 | * the link speed to 5GT/s. | |
2112 | */ | |
15856ad5 | 2113 | static void quirk_tile_plx_gen1(struct pci_dev *dev) |
f02cbbe6 CM |
2114 | { |
2115 | if (tile_plx_gen1) { | |
2116 | pci_write_config_dword(dev, 0x98, 0x1); | |
2117 | mdelay(50); | |
2118 | } | |
2119 | } | |
2120 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8624, quirk_tile_plx_gen1); | |
12962267 | 2121 | #endif /* CONFIG_TILEPRO */ |
26c56dc0 | 2122 | |
3f79e107 | 2123 | #ifdef CONFIG_PCI_MSI |
ebdf7d39 TH |
2124 | /* Some chipsets do not support MSI. We cannot easily rely on setting |
2125 | * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually | |
f7625980 BH |
2126 | * some other buses controlled by the chipset even if Linux is not |
2127 | * aware of it. Instead of setting the flag on all buses in the | |
ebdf7d39 | 2128 | * machine, simply disable MSI globally. |
3f79e107 | 2129 | */ |
15856ad5 | 2130 | static void quirk_disable_all_msi(struct pci_dev *dev) |
3f79e107 | 2131 | { |
88187dfa | 2132 | pci_no_msi(); |
f0fda801 | 2133 | dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n"); |
3f79e107 | 2134 | } |
ebdf7d39 TH |
2135 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi); |
2136 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi); | |
2137 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi); | |
66d715c9 | 2138 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi); |
184b812f | 2139 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi); |
162dedd3 | 2140 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi); |
549e1561 | 2141 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi); |
3f79e107 BG |
2142 | |
2143 | /* Disable MSI on chipsets that are known to not support it */ | |
15856ad5 | 2144 | static void quirk_disable_msi(struct pci_dev *dev) |
3f79e107 BG |
2145 | { |
2146 | if (dev->subordinate) { | |
f0fda801 | 2147 | dev_warn(&dev->dev, "MSI quirk detected; " |
2148 | "subordinate MSI disabled\n"); | |
3f79e107 BG |
2149 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; |
2150 | } | |
2151 | } | |
2152 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi); | |
134b3450 | 2153 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0xa238, quirk_disable_msi); |
9313ff45 | 2154 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x5a3f, quirk_disable_msi); |
6397c75c | 2155 | |
aff61369 CL |
2156 | /* |
2157 | * The APC bridge device in AMD 780 family northbridges has some random | |
2158 | * OEM subsystem ID in its vendor ID register (erratum 18), so instead | |
2159 | * we use the possible vendor/device IDs of the host bridge for the | |
2160 | * declared quirk, and search for the APC bridge by slot number. | |
2161 | */ | |
15856ad5 | 2162 | static void quirk_amd_780_apc_msi(struct pci_dev *host_bridge) |
aff61369 CL |
2163 | { |
2164 | struct pci_dev *apc_bridge; | |
2165 | ||
2166 | apc_bridge = pci_get_slot(host_bridge->bus, PCI_DEVFN(1, 0)); | |
2167 | if (apc_bridge) { | |
2168 | if (apc_bridge->device == 0x9602) | |
2169 | quirk_disable_msi(apc_bridge); | |
2170 | pci_dev_put(apc_bridge); | |
2171 | } | |
2172 | } | |
2173 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9600, quirk_amd_780_apc_msi); | |
2174 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9601, quirk_amd_780_apc_msi); | |
2175 | ||
6397c75c BG |
2176 | /* Go through the list of Hypertransport capabilities and |
2177 | * return 1 if a HT MSI capability is found and enabled */ | |
25e742b2 | 2178 | static int msi_ht_cap_enabled(struct pci_dev *dev) |
6397c75c | 2179 | { |
7a380507 ME |
2180 | int pos, ttl = 48; |
2181 | ||
2182 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); | |
2183 | while (pos && ttl--) { | |
2184 | u8 flags; | |
2185 | ||
2186 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, | |
2187 | &flags) == 0) | |
2188 | { | |
f0fda801 | 2189 | dev_info(&dev->dev, "Found %s HT MSI Mapping\n", |
7a380507 | 2190 | flags & HT_MSI_FLAGS_ENABLE ? |
f0fda801 | 2191 | "enabled" : "disabled"); |
7a380507 | 2192 | return (flags & HT_MSI_FLAGS_ENABLE) != 0; |
6397c75c | 2193 | } |
7a380507 ME |
2194 | |
2195 | pos = pci_find_next_ht_capability(dev, pos, | |
2196 | HT_CAPTYPE_MSI_MAPPING); | |
6397c75c BG |
2197 | } |
2198 | return 0; | |
2199 | } | |
2200 | ||
2201 | /* Check the hypertransport MSI mapping to know whether MSI is enabled or not */ | |
25e742b2 | 2202 | static void quirk_msi_ht_cap(struct pci_dev *dev) |
6397c75c BG |
2203 | { |
2204 | if (dev->subordinate && !msi_ht_cap_enabled(dev)) { | |
f0fda801 | 2205 | dev_warn(&dev->dev, "MSI quirk detected; " |
2206 | "subordinate MSI disabled\n"); | |
6397c75c BG |
2207 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; |
2208 | } | |
2209 | } | |
2210 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE, | |
2211 | quirk_msi_ht_cap); | |
6bae1d96 | 2212 | |
6397c75c BG |
2213 | /* The nVidia CK804 chipset may have 2 HT MSI mappings. |
2214 | * MSI are supported if the MSI capability set in any of these mappings. | |
2215 | */ | |
25e742b2 | 2216 | static void quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev) |
6397c75c BG |
2217 | { |
2218 | struct pci_dev *pdev; | |
2219 | ||
2220 | if (!dev->subordinate) | |
2221 | return; | |
2222 | ||
2223 | /* check HT MSI cap on this chipset and the root one. | |
2224 | * a single one having MSI is enough to be sure that MSI are supported. | |
2225 | */ | |
11f242f0 | 2226 | pdev = pci_get_slot(dev->bus, 0); |
9ac0ce85 JJ |
2227 | if (!pdev) |
2228 | return; | |
0c875c28 | 2229 | if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) { |
f0fda801 | 2230 | dev_warn(&dev->dev, "MSI quirk detected; " |
2231 | "subordinate MSI disabled\n"); | |
6397c75c BG |
2232 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; |
2233 | } | |
11f242f0 | 2234 | pci_dev_put(pdev); |
6397c75c BG |
2235 | } |
2236 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, | |
2237 | quirk_nvidia_ck804_msi_ht_cap); | |
ba698ad4 | 2238 | |
415b6d0e | 2239 | /* Force enable MSI mapping capability on HT bridges */ |
25e742b2 | 2240 | static void ht_enable_msi_mapping(struct pci_dev *dev) |
9dc625e7 PC |
2241 | { |
2242 | int pos, ttl = 48; | |
2243 | ||
2244 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); | |
2245 | while (pos && ttl--) { | |
2246 | u8 flags; | |
2247 | ||
2248 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, | |
2249 | &flags) == 0) { | |
2250 | dev_info(&dev->dev, "Enabling HT MSI Mapping\n"); | |
2251 | ||
2252 | pci_write_config_byte(dev, pos + HT_MSI_FLAGS, | |
2253 | flags | HT_MSI_FLAGS_ENABLE); | |
2254 | } | |
2255 | pos = pci_find_next_ht_capability(dev, pos, | |
2256 | HT_CAPTYPE_MSI_MAPPING); | |
2257 | } | |
2258 | } | |
415b6d0e BH |
2259 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS, |
2260 | PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB, | |
2261 | ht_enable_msi_mapping); | |
9dc625e7 | 2262 | |
e0ae4f55 YL |
2263 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, |
2264 | ht_enable_msi_mapping); | |
2265 | ||
e4146bb9 | 2266 | /* The P5N32-SLI motherboards from Asus have a problem with msi |
75e07fc3 AP |
2267 | * for the MCP55 NIC. It is not yet determined whether the msi problem |
2268 | * also affects other devices. As for now, turn off msi for this device. | |
2269 | */ | |
15856ad5 | 2270 | static void nvenet_msi_disable(struct pci_dev *dev) |
75e07fc3 | 2271 | { |
9251bac9 JD |
2272 | const char *board_name = dmi_get_system_info(DMI_BOARD_NAME); |
2273 | ||
2274 | if (board_name && | |
2275 | (strstr(board_name, "P5N32-SLI PREMIUM") || | |
2276 | strstr(board_name, "P5N32-E SLI"))) { | |
75e07fc3 | 2277 | dev_info(&dev->dev, |
e4146bb9 | 2278 | "Disabling msi for MCP55 NIC on P5N32-SLI\n"); |
75e07fc3 AP |
2279 | dev->no_msi = 1; |
2280 | } | |
2281 | } | |
2282 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA, | |
2283 | PCI_DEVICE_ID_NVIDIA_NVENET_15, | |
2284 | nvenet_msi_disable); | |
2285 | ||
66db60ea | 2286 | /* |
f7625980 BH |
2287 | * Some versions of the MCP55 bridge from Nvidia have a legacy IRQ routing |
2288 | * config register. This register controls the routing of legacy | |
2289 | * interrupts from devices that route through the MCP55. If this register | |
2290 | * is misprogrammed, interrupts are only sent to the BSP, unlike | |
2291 | * conventional systems where the IRQ is broadcast to all online CPUs. Not | |
2292 | * having this register set properly prevents kdump from booting up | |
2293 | * properly, so let's make sure that we have it set correctly. | |
2294 | * Note that this is an undocumented register. | |
66db60ea | 2295 | */ |
15856ad5 | 2296 | static void nvbridge_check_legacy_irq_routing(struct pci_dev *dev) |
66db60ea NH |
2297 | { |
2298 | u32 cfg; | |
2299 | ||
49c2fa08 NH |
2300 | if (!pci_find_capability(dev, PCI_CAP_ID_HT)) |
2301 | return; | |
2302 | ||
66db60ea NH |
2303 | pci_read_config_dword(dev, 0x74, &cfg); |
2304 | ||
2305 | if (cfg & ((1 << 2) | (1 << 15))) { | |
2306 | printk(KERN_INFO "Rewriting irq routing register on MCP55\n"); | |
2307 | cfg &= ~((1 << 2) | (1 << 15)); | |
2308 | pci_write_config_dword(dev, 0x74, cfg); | |
2309 | } | |
2310 | } | |
2311 | ||
2312 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA, | |
2313 | PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V0, | |
2314 | nvbridge_check_legacy_irq_routing); | |
2315 | ||
2316 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA, | |
2317 | PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V4, | |
2318 | nvbridge_check_legacy_irq_routing); | |
2319 | ||
25e742b2 | 2320 | static int ht_check_msi_mapping(struct pci_dev *dev) |
de745306 YL |
2321 | { |
2322 | int pos, ttl = 48; | |
2323 | int found = 0; | |
2324 | ||
2325 | /* check if there is HT MSI cap or enabled on this device */ | |
2326 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); | |
2327 | while (pos && ttl--) { | |
2328 | u8 flags; | |
2329 | ||
2330 | if (found < 1) | |
2331 | found = 1; | |
2332 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, | |
2333 | &flags) == 0) { | |
2334 | if (flags & HT_MSI_FLAGS_ENABLE) { | |
2335 | if (found < 2) { | |
2336 | found = 2; | |
2337 | break; | |
2338 | } | |
2339 | } | |
2340 | } | |
2341 | pos = pci_find_next_ht_capability(dev, pos, | |
2342 | HT_CAPTYPE_MSI_MAPPING); | |
2343 | } | |
2344 | ||
2345 | return found; | |
2346 | } | |
2347 | ||
25e742b2 | 2348 | static int host_bridge_with_leaf(struct pci_dev *host_bridge) |
de745306 YL |
2349 | { |
2350 | struct pci_dev *dev; | |
2351 | int pos; | |
2352 | int i, dev_no; | |
2353 | int found = 0; | |
2354 | ||
2355 | dev_no = host_bridge->devfn >> 3; | |
2356 | for (i = dev_no + 1; i < 0x20; i++) { | |
2357 | dev = pci_get_slot(host_bridge->bus, PCI_DEVFN(i, 0)); | |
2358 | if (!dev) | |
2359 | continue; | |
2360 | ||
2361 | /* found next host bridge ?*/ | |
2362 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE); | |
2363 | if (pos != 0) { | |
2364 | pci_dev_put(dev); | |
2365 | break; | |
2366 | } | |
2367 | ||
2368 | if (ht_check_msi_mapping(dev)) { | |
2369 | found = 1; | |
2370 | pci_dev_put(dev); | |
2371 | break; | |
2372 | } | |
2373 | pci_dev_put(dev); | |
2374 | } | |
2375 | ||
2376 | return found; | |
2377 | } | |
2378 | ||
eeafda70 YL |
2379 | #define PCI_HT_CAP_SLAVE_CTRL0 4 /* link control */ |
2380 | #define PCI_HT_CAP_SLAVE_CTRL1 8 /* link control to */ | |
2381 | ||
25e742b2 | 2382 | static int is_end_of_ht_chain(struct pci_dev *dev) |
eeafda70 YL |
2383 | { |
2384 | int pos, ctrl_off; | |
2385 | int end = 0; | |
2386 | u16 flags, ctrl; | |
2387 | ||
2388 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE); | |
2389 | ||
2390 | if (!pos) | |
2391 | goto out; | |
2392 | ||
2393 | pci_read_config_word(dev, pos + PCI_CAP_FLAGS, &flags); | |
2394 | ||
2395 | ctrl_off = ((flags >> 10) & 1) ? | |
2396 | PCI_HT_CAP_SLAVE_CTRL0 : PCI_HT_CAP_SLAVE_CTRL1; | |
2397 | pci_read_config_word(dev, pos + ctrl_off, &ctrl); | |
2398 | ||
2399 | if (ctrl & (1 << 6)) | |
2400 | end = 1; | |
2401 | ||
2402 | out: | |
2403 | return end; | |
2404 | } | |
2405 | ||
25e742b2 | 2406 | static void nv_ht_enable_msi_mapping(struct pci_dev *dev) |
9dc625e7 PC |
2407 | { |
2408 | struct pci_dev *host_bridge; | |
1dec6b05 YL |
2409 | int pos; |
2410 | int i, dev_no; | |
2411 | int found = 0; | |
2412 | ||
2413 | dev_no = dev->devfn >> 3; | |
2414 | for (i = dev_no; i >= 0; i--) { | |
2415 | host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0)); | |
2416 | if (!host_bridge) | |
2417 | continue; | |
2418 | ||
2419 | pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE); | |
2420 | if (pos != 0) { | |
2421 | found = 1; | |
2422 | break; | |
2423 | } | |
2424 | pci_dev_put(host_bridge); | |
2425 | } | |
2426 | ||
2427 | if (!found) | |
2428 | return; | |
2429 | ||
eeafda70 YL |
2430 | /* don't enable end_device/host_bridge with leaf directly here */ |
2431 | if (host_bridge == dev && is_end_of_ht_chain(host_bridge) && | |
2432 | host_bridge_with_leaf(host_bridge)) | |
de745306 YL |
2433 | goto out; |
2434 | ||
1dec6b05 YL |
2435 | /* root did that ! */ |
2436 | if (msi_ht_cap_enabled(host_bridge)) | |
2437 | goto out; | |
2438 | ||
2439 | ht_enable_msi_mapping(dev); | |
2440 | ||
2441 | out: | |
2442 | pci_dev_put(host_bridge); | |
2443 | } | |
2444 | ||
25e742b2 | 2445 | static void ht_disable_msi_mapping(struct pci_dev *dev) |
1dec6b05 YL |
2446 | { |
2447 | int pos, ttl = 48; | |
2448 | ||
2449 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); | |
2450 | while (pos && ttl--) { | |
2451 | u8 flags; | |
2452 | ||
2453 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, | |
2454 | &flags) == 0) { | |
6a958d5b | 2455 | dev_info(&dev->dev, "Disabling HT MSI Mapping\n"); |
1dec6b05 YL |
2456 | |
2457 | pci_write_config_byte(dev, pos + HT_MSI_FLAGS, | |
2458 | flags & ~HT_MSI_FLAGS_ENABLE); | |
2459 | } | |
2460 | pos = pci_find_next_ht_capability(dev, pos, | |
2461 | HT_CAPTYPE_MSI_MAPPING); | |
2462 | } | |
2463 | } | |
2464 | ||
25e742b2 | 2465 | static void __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all) |
1dec6b05 YL |
2466 | { |
2467 | struct pci_dev *host_bridge; | |
2468 | int pos; | |
2469 | int found; | |
2470 | ||
3d2a5318 RW |
2471 | if (!pci_msi_enabled()) |
2472 | return; | |
2473 | ||
1dec6b05 YL |
2474 | /* check if there is HT MSI cap or enabled on this device */ |
2475 | found = ht_check_msi_mapping(dev); | |
2476 | ||
2477 | /* no HT MSI CAP */ | |
2478 | if (found == 0) | |
2479 | return; | |
9dc625e7 PC |
2480 | |
2481 | /* | |
2482 | * HT MSI mapping should be disabled on devices that are below | |
2483 | * a non-Hypertransport host bridge. Locate the host bridge... | |
2484 | */ | |
2485 | host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0)); | |
2486 | if (host_bridge == NULL) { | |
2487 | dev_warn(&dev->dev, | |
2488 | "nv_msi_ht_cap_quirk didn't locate host bridge\n"); | |
2489 | return; | |
2490 | } | |
2491 | ||
2492 | pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE); | |
2493 | if (pos != 0) { | |
2494 | /* Host bridge is to HT */ | |
1dec6b05 YL |
2495 | if (found == 1) { |
2496 | /* it is not enabled, try to enable it */ | |
de745306 YL |
2497 | if (all) |
2498 | ht_enable_msi_mapping(dev); | |
2499 | else | |
2500 | nv_ht_enable_msi_mapping(dev); | |
1dec6b05 | 2501 | } |
dff3aef7 | 2502 | goto out; |
9dc625e7 PC |
2503 | } |
2504 | ||
1dec6b05 YL |
2505 | /* HT MSI is not enabled */ |
2506 | if (found == 1) | |
dff3aef7 | 2507 | goto out; |
9dc625e7 | 2508 | |
1dec6b05 YL |
2509 | /* Host bridge is not to HT, disable HT MSI mapping on this device */ |
2510 | ht_disable_msi_mapping(dev); | |
dff3aef7 MS |
2511 | |
2512 | out: | |
2513 | pci_dev_put(host_bridge); | |
9dc625e7 | 2514 | } |
de745306 | 2515 | |
25e742b2 | 2516 | static void nv_msi_ht_cap_quirk_all(struct pci_dev *dev) |
de745306 YL |
2517 | { |
2518 | return __nv_msi_ht_cap_quirk(dev, 1); | |
2519 | } | |
2520 | ||
25e742b2 | 2521 | static void nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev) |
de745306 YL |
2522 | { |
2523 | return __nv_msi_ht_cap_quirk(dev, 0); | |
2524 | } | |
2525 | ||
2526 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf); | |
6dab62ee | 2527 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf); |
de745306 YL |
2528 | |
2529 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all); | |
6dab62ee | 2530 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all); |
9dc625e7 | 2531 | |
15856ad5 | 2532 | static void quirk_msi_intx_disable_bug(struct pci_dev *dev) |
ba698ad4 DM |
2533 | { |
2534 | dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG; | |
2535 | } | |
15856ad5 | 2536 | static void quirk_msi_intx_disable_ati_bug(struct pci_dev *dev) |
4600c9d7 SH |
2537 | { |
2538 | struct pci_dev *p; | |
2539 | ||
2540 | /* SB700 MSI issue will be fixed at HW level from revision A21, | |
2541 | * we need check PCI REVISION ID of SMBus controller to get SB700 | |
2542 | * revision. | |
2543 | */ | |
2544 | p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS, | |
2545 | NULL); | |
2546 | if (!p) | |
2547 | return; | |
2548 | ||
2549 | if ((p->revision < 0x3B) && (p->revision >= 0x30)) | |
2550 | dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG; | |
2551 | pci_dev_put(p); | |
2552 | } | |
70588818 XH |
2553 | static void quirk_msi_intx_disable_qca_bug(struct pci_dev *dev) |
2554 | { | |
2555 | /* AR816X/AR817X/E210X MSI is fixed at HW level from revision 0x18 */ | |
2556 | if (dev->revision < 0x18) { | |
2557 | dev_info(&dev->dev, "set MSI_INTX_DISABLE_BUG flag\n"); | |
2558 | dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG; | |
2559 | } | |
2560 | } | |
ba698ad4 DM |
2561 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
2562 | PCI_DEVICE_ID_TIGON3_5780, | |
2563 | quirk_msi_intx_disable_bug); | |
2564 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2565 | PCI_DEVICE_ID_TIGON3_5780S, | |
2566 | quirk_msi_intx_disable_bug); | |
2567 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2568 | PCI_DEVICE_ID_TIGON3_5714, | |
2569 | quirk_msi_intx_disable_bug); | |
2570 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2571 | PCI_DEVICE_ID_TIGON3_5714S, | |
2572 | quirk_msi_intx_disable_bug); | |
2573 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2574 | PCI_DEVICE_ID_TIGON3_5715, | |
2575 | quirk_msi_intx_disable_bug); | |
2576 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2577 | PCI_DEVICE_ID_TIGON3_5715S, | |
2578 | quirk_msi_intx_disable_bug); | |
2579 | ||
bc38b411 | 2580 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390, |
4600c9d7 | 2581 | quirk_msi_intx_disable_ati_bug); |
bc38b411 | 2582 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391, |
4600c9d7 | 2583 | quirk_msi_intx_disable_ati_bug); |
bc38b411 | 2584 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392, |
4600c9d7 | 2585 | quirk_msi_intx_disable_ati_bug); |
bc38b411 | 2586 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393, |
4600c9d7 | 2587 | quirk_msi_intx_disable_ati_bug); |
bc38b411 | 2588 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394, |
4600c9d7 | 2589 | quirk_msi_intx_disable_ati_bug); |
bc38b411 DM |
2590 | |
2591 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373, | |
2592 | quirk_msi_intx_disable_bug); | |
2593 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374, | |
2594 | quirk_msi_intx_disable_bug); | |
2595 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375, | |
2596 | quirk_msi_intx_disable_bug); | |
2597 | ||
7cb6a291 HX |
2598 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1062, |
2599 | quirk_msi_intx_disable_bug); | |
2600 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1063, | |
2601 | quirk_msi_intx_disable_bug); | |
2602 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2060, | |
2603 | quirk_msi_intx_disable_bug); | |
2604 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2062, | |
2605 | quirk_msi_intx_disable_bug); | |
2606 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1073, | |
2607 | quirk_msi_intx_disable_bug); | |
2608 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1083, | |
2609 | quirk_msi_intx_disable_bug); | |
70588818 XH |
2610 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1090, |
2611 | quirk_msi_intx_disable_qca_bug); | |
2612 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1091, | |
2613 | quirk_msi_intx_disable_qca_bug); | |
2614 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a0, | |
2615 | quirk_msi_intx_disable_qca_bug); | |
2616 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a1, | |
2617 | quirk_msi_intx_disable_qca_bug); | |
2618 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0xe091, | |
2619 | quirk_msi_intx_disable_qca_bug); | |
3f79e107 | 2620 | #endif /* CONFIG_PCI_MSI */ |
3d137310 | 2621 | |
3322340a FR |
2622 | /* Allow manual resource allocation for PCI hotplug bridges |
2623 | * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For | |
2624 | * some PCI-PCI hotplug bridges, like PLX 6254 (former HINT HB6), | |
f7625980 | 2625 | * kernel fails to allocate resources when hotplug device is |
3322340a FR |
2626 | * inserted and PCI bus is rescanned. |
2627 | */ | |
15856ad5 | 2628 | static void quirk_hotplug_bridge(struct pci_dev *dev) |
3322340a FR |
2629 | { |
2630 | dev->is_hotplug_bridge = 1; | |
2631 | } | |
2632 | ||
2633 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0020, quirk_hotplug_bridge); | |
2634 | ||
03cd8f7e ML |
2635 | /* |
2636 | * This is a quirk for the Ricoh MMC controller found as a part of | |
2637 | * some mulifunction chips. | |
2638 | ||
25985edc | 2639 | * This is very similar and based on the ricoh_mmc driver written by |
03cd8f7e ML |
2640 | * Philip Langdale. Thank you for these magic sequences. |
2641 | * | |
2642 | * These chips implement the four main memory card controllers (SD, MMC, MS, xD) | |
2643 | * and one or both of cardbus or firewire. | |
2644 | * | |
2645 | * It happens that they implement SD and MMC | |
2646 | * support as separate controllers (and PCI functions). The linux SDHCI | |
2647 | * driver supports MMC cards but the chip detects MMC cards in hardware | |
2648 | * and directs them to the MMC controller - so the SDHCI driver never sees | |
2649 | * them. | |
2650 | * | |
2651 | * To get around this, we must disable the useless MMC controller. | |
2652 | * At that point, the SDHCI controller will start seeing them | |
2653 | * It seems to be the case that the relevant PCI registers to deactivate the | |
2654 | * MMC controller live on PCI function 0, which might be the cardbus controller | |
2655 | * or the firewire controller, depending on the particular chip in question | |
2656 | * | |
2657 | * This has to be done early, because as soon as we disable the MMC controller | |
2658 | * other pci functions shift up one level, e.g. function #2 becomes function | |
2659 | * #1, and this will confuse the pci core. | |
2660 | */ | |
2661 | ||
2662 | #ifdef CONFIG_MMC_RICOH_MMC | |
2663 | static void ricoh_mmc_fixup_rl5c476(struct pci_dev *dev) | |
2664 | { | |
2665 | /* disable via cardbus interface */ | |
2666 | u8 write_enable; | |
2667 | u8 write_target; | |
2668 | u8 disable; | |
2669 | ||
2670 | /* disable must be done via function #0 */ | |
2671 | if (PCI_FUNC(dev->devfn)) | |
2672 | return; | |
2673 | ||
2674 | pci_read_config_byte(dev, 0xB7, &disable); | |
2675 | if (disable & 0x02) | |
2676 | return; | |
2677 | ||
2678 | pci_read_config_byte(dev, 0x8E, &write_enable); | |
2679 | pci_write_config_byte(dev, 0x8E, 0xAA); | |
2680 | pci_read_config_byte(dev, 0x8D, &write_target); | |
2681 | pci_write_config_byte(dev, 0x8D, 0xB7); | |
2682 | pci_write_config_byte(dev, 0xB7, disable | 0x02); | |
2683 | pci_write_config_byte(dev, 0x8E, write_enable); | |
2684 | pci_write_config_byte(dev, 0x8D, write_target); | |
2685 | ||
2686 | dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via cardbus function)\n"); | |
2687 | dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller\n"); | |
2688 | } | |
2689 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476); | |
2690 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476); | |
2691 | ||
2692 | static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev) | |
2693 | { | |
2694 | /* disable via firewire interface */ | |
2695 | u8 write_enable; | |
2696 | u8 disable; | |
2697 | ||
2698 | /* disable must be done via function #0 */ | |
2699 | if (PCI_FUNC(dev->devfn)) | |
2700 | return; | |
15bed0f2 | 2701 | /* |
812089e0 | 2702 | * RICOH 0xe822 and 0xe823 SD/MMC card readers fail to recognize |
15bed0f2 MI |
2703 | * certain types of SD/MMC cards. Lowering the SD base |
2704 | * clock frequency from 200Mhz to 50Mhz fixes this issue. | |
2705 | * | |
2706 | * 0x150 - SD2.0 mode enable for changing base clock | |
2707 | * frequency to 50Mhz | |
2708 | * 0xe1 - Base clock frequency | |
2709 | * 0x32 - 50Mhz new clock frequency | |
2710 | * 0xf9 - Key register for 0x150 | |
2711 | * 0xfc - key register for 0xe1 | |
2712 | */ | |
812089e0 AL |
2713 | if (dev->device == PCI_DEVICE_ID_RICOH_R5CE822 || |
2714 | dev->device == PCI_DEVICE_ID_RICOH_R5CE823) { | |
15bed0f2 MI |
2715 | pci_write_config_byte(dev, 0xf9, 0xfc); |
2716 | pci_write_config_byte(dev, 0x150, 0x10); | |
2717 | pci_write_config_byte(dev, 0xf9, 0x00); | |
2718 | pci_write_config_byte(dev, 0xfc, 0x01); | |
2719 | pci_write_config_byte(dev, 0xe1, 0x32); | |
2720 | pci_write_config_byte(dev, 0xfc, 0x00); | |
2721 | ||
2722 | dev_notice(&dev->dev, "MMC controller base frequency changed to 50Mhz.\n"); | |
2723 | } | |
3e309cdf JB |
2724 | |
2725 | pci_read_config_byte(dev, 0xCB, &disable); | |
2726 | ||
2727 | if (disable & 0x02) | |
2728 | return; | |
2729 | ||
2730 | pci_read_config_byte(dev, 0xCA, &write_enable); | |
2731 | pci_write_config_byte(dev, 0xCA, 0x57); | |
2732 | pci_write_config_byte(dev, 0xCB, disable | 0x02); | |
2733 | pci_write_config_byte(dev, 0xCA, write_enable); | |
2734 | ||
2735 | dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via firewire function)\n"); | |
2736 | dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller\n"); | |
2737 | ||
03cd8f7e ML |
2738 | } |
2739 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832); | |
2740 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832); | |
812089e0 AL |
2741 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832); |
2742 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832); | |
be98ca65 MI |
2743 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832); |
2744 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832); | |
03cd8f7e ML |
2745 | #endif /*CONFIG_MMC_RICOH_MMC*/ |
2746 | ||
d3f13810 | 2747 | #ifdef CONFIG_DMAR_TABLE |
254e4200 SS |
2748 | #define VTUNCERRMSK_REG 0x1ac |
2749 | #define VTD_MSK_SPEC_ERRORS (1 << 31) | |
2750 | /* | |
2751 | * This is a quirk for masking vt-d spec defined errors to platform error | |
2752 | * handling logic. With out this, platforms using Intel 7500, 5500 chipsets | |
2753 | * (and the derivative chipsets like X58 etc) seem to generate NMI/SMI (based | |
2754 | * on the RAS config settings of the platform) when a vt-d fault happens. | |
2755 | * The resulting SMI caused the system to hang. | |
2756 | * | |
2757 | * VT-d spec related errors are already handled by the VT-d OS code, so no | |
2758 | * need to report the same error through other channels. | |
2759 | */ | |
2760 | static void vtd_mask_spec_errors(struct pci_dev *dev) | |
2761 | { | |
2762 | u32 word; | |
2763 | ||
2764 | pci_read_config_dword(dev, VTUNCERRMSK_REG, &word); | |
2765 | pci_write_config_dword(dev, VTUNCERRMSK_REG, word | VTD_MSK_SPEC_ERRORS); | |
2766 | } | |
2767 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors); | |
2768 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors); | |
2769 | #endif | |
03cd8f7e | 2770 | |
15856ad5 | 2771 | static void fixup_ti816x_class(struct pci_dev *dev) |
63c44080 HP |
2772 | { |
2773 | /* TI 816x devices do not have class code set when in PCIe boot mode */ | |
40c96236 YL |
2774 | dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n"); |
2775 | dev->class = PCI_CLASS_MULTIMEDIA_VIDEO; | |
63c44080 | 2776 | } |
40c96236 YL |
2777 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_TI, 0xb800, |
2778 | PCI_CLASS_NOT_DEFINED, 0, fixup_ti816x_class); | |
63c44080 | 2779 | |
a94d072b BH |
2780 | /* Some PCIe devices do not work reliably with the claimed maximum |
2781 | * payload size supported. | |
2782 | */ | |
15856ad5 | 2783 | static void fixup_mpss_256(struct pci_dev *dev) |
a94d072b BH |
2784 | { |
2785 | dev->pcie_mpss = 1; /* 256 bytes */ | |
2786 | } | |
2787 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE, | |
2788 | PCI_DEVICE_ID_SOLARFLARE_SFC4000A_0, fixup_mpss_256); | |
2789 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE, | |
2790 | PCI_DEVICE_ID_SOLARFLARE_SFC4000A_1, fixup_mpss_256); | |
2791 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE, | |
2792 | PCI_DEVICE_ID_SOLARFLARE_SFC4000B, fixup_mpss_256); | |
2793 | ||
d387a8d6 JM |
2794 | /* Intel 5000 and 5100 Memory controllers have an errata with read completion |
2795 | * coalescing (which is enabled by default on some BIOSes) and MPS of 256B. | |
2796 | * Since there is no way of knowing what the PCIE MPS on each fabric will be | |
2797 | * until all of the devices are discovered and buses walked, read completion | |
2798 | * coalescing must be disabled. Unfortunately, it cannot be re-enabled because | |
2799 | * it is possible to hotplug a device with MPS of 256B. | |
2800 | */ | |
15856ad5 | 2801 | static void quirk_intel_mc_errata(struct pci_dev *dev) |
d387a8d6 JM |
2802 | { |
2803 | int err; | |
2804 | u16 rcc; | |
2805 | ||
2806 | if (pcie_bus_config == PCIE_BUS_TUNE_OFF) | |
2807 | return; | |
2808 | ||
2809 | /* Intel errata specifies bits to change but does not say what they are. | |
2810 | * Keeping them magical until such time as the registers and values can | |
2811 | * be explained. | |
2812 | */ | |
2813 | err = pci_read_config_word(dev, 0x48, &rcc); | |
2814 | if (err) { | |
2815 | dev_err(&dev->dev, "Error attempting to read the read " | |
2816 | "completion coalescing register.\n"); | |
2817 | return; | |
2818 | } | |
2819 | ||
2820 | if (!(rcc & (1 << 10))) | |
2821 | return; | |
2822 | ||
2823 | rcc &= ~(1 << 10); | |
2824 | ||
2825 | err = pci_write_config_word(dev, 0x48, rcc); | |
2826 | if (err) { | |
2827 | dev_err(&dev->dev, "Error attempting to write the read " | |
2828 | "completion coalescing register.\n"); | |
2829 | return; | |
2830 | } | |
2831 | ||
2832 | pr_info_once("Read completion coalescing disabled due to hardware " | |
2833 | "errata relating to 256B MPS.\n"); | |
2834 | } | |
2835 | /* Intel 5000 series memory controllers and ports 2-7 */ | |
2836 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25c0, quirk_intel_mc_errata); | |
2837 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d0, quirk_intel_mc_errata); | |
2838 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d4, quirk_intel_mc_errata); | |
2839 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d8, quirk_intel_mc_errata); | |
2840 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_mc_errata); | |
2841 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_mc_errata); | |
2842 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_mc_errata); | |
2843 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_mc_errata); | |
2844 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_mc_errata); | |
2845 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_mc_errata); | |
2846 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_mc_errata); | |
2847 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_mc_errata); | |
2848 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_mc_errata); | |
2849 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_mc_errata); | |
2850 | /* Intel 5100 series memory controllers and ports 2-7 */ | |
2851 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65c0, quirk_intel_mc_errata); | |
2852 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e2, quirk_intel_mc_errata); | |
2853 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e3, quirk_intel_mc_errata); | |
2854 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e4, quirk_intel_mc_errata); | |
2855 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e5, quirk_intel_mc_errata); | |
2856 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e6, quirk_intel_mc_errata); | |
2857 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e7, quirk_intel_mc_errata); | |
2858 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f7, quirk_intel_mc_errata); | |
2859 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f8, quirk_intel_mc_errata); | |
2860 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata); | |
2861 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata); | |
2862 | ||
3209874a | 2863 | |
12b03188 JM |
2864 | /* |
2865 | * Ivytown NTB BAR sizes are misreported by the hardware due to an erratum. To | |
2866 | * work around this, query the size it should be configured to by the device and | |
2867 | * modify the resource end to correspond to this new size. | |
2868 | */ | |
2869 | static void quirk_intel_ntb(struct pci_dev *dev) | |
2870 | { | |
2871 | int rc; | |
2872 | u8 val; | |
2873 | ||
2874 | rc = pci_read_config_byte(dev, 0x00D0, &val); | |
2875 | if (rc) | |
2876 | return; | |
2877 | ||
2878 | dev->resource[2].end = dev->resource[2].start + ((u64) 1 << val) - 1; | |
2879 | ||
2880 | rc = pci_read_config_byte(dev, 0x00D1, &val); | |
2881 | if (rc) | |
2882 | return; | |
2883 | ||
2884 | dev->resource[4].end = dev->resource[4].start + ((u64) 1 << val) - 1; | |
2885 | } | |
2886 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e08, quirk_intel_ntb); | |
2887 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e0d, quirk_intel_ntb); | |
2888 | ||
2729d5b1 MS |
2889 | static ktime_t fixup_debug_start(struct pci_dev *dev, |
2890 | void (*fn)(struct pci_dev *dev)) | |
3209874a | 2891 | { |
2729d5b1 MS |
2892 | ktime_t calltime = ktime_set(0, 0); |
2893 | ||
2894 | dev_dbg(&dev->dev, "calling %pF\n", fn); | |
2895 | if (initcall_debug) { | |
2896 | pr_debug("calling %pF @ %i for %s\n", | |
2897 | fn, task_pid_nr(current), dev_name(&dev->dev)); | |
2898 | calltime = ktime_get(); | |
2899 | } | |
2900 | ||
2901 | return calltime; | |
2902 | } | |
2903 | ||
2904 | static void fixup_debug_report(struct pci_dev *dev, ktime_t calltime, | |
2905 | void (*fn)(struct pci_dev *dev)) | |
3209874a | 2906 | { |
2729d5b1 | 2907 | ktime_t delta, rettime; |
3209874a AV |
2908 | unsigned long long duration; |
2909 | ||
2729d5b1 MS |
2910 | if (initcall_debug) { |
2911 | rettime = ktime_get(); | |
2912 | delta = ktime_sub(rettime, calltime); | |
2913 | duration = (unsigned long long) ktime_to_ns(delta) >> 10; | |
2914 | pr_debug("pci fixup %pF returned after %lld usecs for %s\n", | |
2915 | fn, duration, dev_name(&dev->dev)); | |
2916 | } | |
3209874a AV |
2917 | } |
2918 | ||
f67fd55f TJ |
2919 | /* |
2920 | * Some BIOS implementations leave the Intel GPU interrupts enabled, | |
2921 | * even though no one is handling them (f.e. i915 driver is never loaded). | |
2922 | * Additionally the interrupt destination is not set up properly | |
2923 | * and the interrupt ends up -somewhere-. | |
2924 | * | |
2925 | * These spurious interrupts are "sticky" and the kernel disables | |
2926 | * the (shared) interrupt line after 100.000+ generated interrupts. | |
2927 | * | |
2928 | * Fix it by disabling the still enabled interrupts. | |
2929 | * This resolves crashes often seen on monitor unplug. | |
2930 | */ | |
2931 | #define I915_DEIER_REG 0x4400c | |
15856ad5 | 2932 | static void disable_igfx_irq(struct pci_dev *dev) |
f67fd55f TJ |
2933 | { |
2934 | void __iomem *regs = pci_iomap(dev, 0, 0); | |
2935 | if (regs == NULL) { | |
2936 | dev_warn(&dev->dev, "igfx quirk: Can't iomap PCI device\n"); | |
2937 | return; | |
2938 | } | |
2939 | ||
2940 | /* Check if any interrupt line is still enabled */ | |
2941 | if (readl(regs + I915_DEIER_REG) != 0) { | |
2942 | dev_warn(&dev->dev, "BIOS left Intel GPU interrupts enabled; " | |
2943 | "disabling\n"); | |
2944 | ||
2945 | writel(0, regs + I915_DEIER_REG); | |
2946 | } | |
2947 | ||
2948 | pci_iounmap(dev, regs); | |
2949 | } | |
2950 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq); | |
2951 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq); | |
2952 | ||
b8cac70a TB |
2953 | /* |
2954 | * PCI devices which are on Intel chips can skip the 10ms delay | |
2955 | * before entering D3 mode. | |
2956 | */ | |
2957 | static void quirk_remove_d3_delay(struct pci_dev *dev) | |
2958 | { | |
2959 | dev->d3_delay = 0; | |
2960 | } | |
2961 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay); | |
2962 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0412, quirk_remove_d3_delay); | |
2963 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c0c, quirk_remove_d3_delay); | |
2964 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay); | |
2965 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay); | |
2966 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay); | |
2967 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay); | |
2968 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay); | |
2969 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c18, quirk_remove_d3_delay); | |
2970 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c1c, quirk_remove_d3_delay); | |
2971 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3_delay); | |
2972 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3_delay); | |
2973 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay); | |
2974 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay); | |
2975 | ||
fbebb9fd BH |
2976 | /* |
2977 | * Some devices may pass our check in pci_intx_mask_supported if | |
2978 | * PCI_COMMAND_INTX_DISABLE works though they actually do not properly | |
2979 | * support this feature. | |
2980 | */ | |
15856ad5 | 2981 | static void quirk_broken_intx_masking(struct pci_dev *dev) |
fbebb9fd BH |
2982 | { |
2983 | dev->broken_intx_masking = 1; | |
2984 | } | |
de509f9f JK |
2985 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CHELSIO, 0x0030, |
2986 | quirk_broken_intx_masking); | |
0bdb3b21 AW |
2987 | DECLARE_PCI_FIXUP_HEADER(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */ |
2988 | quirk_broken_intx_masking); | |
fbebb9fd | 2989 | |
bfb0f330 JB |
2990 | static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, |
2991 | struct pci_fixup *end) | |
3d137310 | 2992 | { |
2729d5b1 MS |
2993 | ktime_t calltime; |
2994 | ||
f4ca5c6a YL |
2995 | for (; f < end; f++) |
2996 | if ((f->class == (u32) (dev->class >> f->class_shift) || | |
2997 | f->class == (u32) PCI_ANY_ID) && | |
2998 | (f->vendor == dev->vendor || | |
2999 | f->vendor == (u16) PCI_ANY_ID) && | |
3000 | (f->device == dev->device || | |
3001 | f->device == (u16) PCI_ANY_ID)) { | |
2729d5b1 MS |
3002 | calltime = fixup_debug_start(dev, f->hook); |
3003 | f->hook(dev); | |
3004 | fixup_debug_report(dev, calltime, f->hook); | |
3d137310 | 3005 | } |
3d137310 TP |
3006 | } |
3007 | ||
3008 | extern struct pci_fixup __start_pci_fixups_early[]; | |
3009 | extern struct pci_fixup __end_pci_fixups_early[]; | |
3010 | extern struct pci_fixup __start_pci_fixups_header[]; | |
3011 | extern struct pci_fixup __end_pci_fixups_header[]; | |
3012 | extern struct pci_fixup __start_pci_fixups_final[]; | |
3013 | extern struct pci_fixup __end_pci_fixups_final[]; | |
3014 | extern struct pci_fixup __start_pci_fixups_enable[]; | |
3015 | extern struct pci_fixup __end_pci_fixups_enable[]; | |
3016 | extern struct pci_fixup __start_pci_fixups_resume[]; | |
3017 | extern struct pci_fixup __end_pci_fixups_resume[]; | |
3018 | extern struct pci_fixup __start_pci_fixups_resume_early[]; | |
3019 | extern struct pci_fixup __end_pci_fixups_resume_early[]; | |
3020 | extern struct pci_fixup __start_pci_fixups_suspend[]; | |
3021 | extern struct pci_fixup __end_pci_fixups_suspend[]; | |
3022 | ||
95df8b87 | 3023 | static bool pci_apply_fixup_final_quirks; |
3d137310 TP |
3024 | |
3025 | void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) | |
3026 | { | |
3027 | struct pci_fixup *start, *end; | |
3028 | ||
3029 | switch(pass) { | |
3030 | case pci_fixup_early: | |
3031 | start = __start_pci_fixups_early; | |
3032 | end = __end_pci_fixups_early; | |
3033 | break; | |
3034 | ||
3035 | case pci_fixup_header: | |
3036 | start = __start_pci_fixups_header; | |
3037 | end = __end_pci_fixups_header; | |
3038 | break; | |
3039 | ||
3040 | case pci_fixup_final: | |
95df8b87 MS |
3041 | if (!pci_apply_fixup_final_quirks) |
3042 | return; | |
3d137310 TP |
3043 | start = __start_pci_fixups_final; |
3044 | end = __end_pci_fixups_final; | |
3045 | break; | |
3046 | ||
3047 | case pci_fixup_enable: | |
3048 | start = __start_pci_fixups_enable; | |
3049 | end = __end_pci_fixups_enable; | |
3050 | break; | |
3051 | ||
3052 | case pci_fixup_resume: | |
3053 | start = __start_pci_fixups_resume; | |
3054 | end = __end_pci_fixups_resume; | |
3055 | break; | |
3056 | ||
3057 | case pci_fixup_resume_early: | |
3058 | start = __start_pci_fixups_resume_early; | |
3059 | end = __end_pci_fixups_resume_early; | |
3060 | break; | |
3061 | ||
3062 | case pci_fixup_suspend: | |
3063 | start = __start_pci_fixups_suspend; | |
3064 | end = __end_pci_fixups_suspend; | |
3065 | break; | |
3066 | ||
3067 | default: | |
3068 | /* stupid compiler warning, you would think with an enum... */ | |
3069 | return; | |
3070 | } | |
3071 | pci_do_fixups(dev, start, end); | |
3072 | } | |
93177a74 | 3073 | EXPORT_SYMBOL(pci_fixup_device); |
8d86fb2c | 3074 | |
735bff10 | 3075 | |
00010268 | 3076 | static int __init pci_apply_final_quirks(void) |
8d86fb2c DW |
3077 | { |
3078 | struct pci_dev *dev = NULL; | |
ac1aa47b JB |
3079 | u8 cls = 0; |
3080 | u8 tmp; | |
3081 | ||
3082 | if (pci_cache_line_size) | |
3083 | printk(KERN_DEBUG "PCI: CLS %u bytes\n", | |
3084 | pci_cache_line_size << 2); | |
8d86fb2c | 3085 | |
95df8b87 | 3086 | pci_apply_fixup_final_quirks = true; |
4e344b1c | 3087 | for_each_pci_dev(dev) { |
8d86fb2c | 3088 | pci_fixup_device(pci_fixup_final, dev); |
ac1aa47b JB |
3089 | /* |
3090 | * If arch hasn't set it explicitly yet, use the CLS | |
3091 | * value shared by all PCI devices. If there's a | |
3092 | * mismatch, fall back to the default value. | |
3093 | */ | |
3094 | if (!pci_cache_line_size) { | |
3095 | pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &tmp); | |
3096 | if (!cls) | |
3097 | cls = tmp; | |
3098 | if (!tmp || cls == tmp) | |
3099 | continue; | |
3100 | ||
3101 | printk(KERN_DEBUG "PCI: CLS mismatch (%u != %u), " | |
3102 | "using %u bytes\n", cls << 2, tmp << 2, | |
3103 | pci_dfl_cache_line_size << 2); | |
3104 | pci_cache_line_size = pci_dfl_cache_line_size; | |
3105 | } | |
3106 | } | |
735bff10 | 3107 | |
ac1aa47b JB |
3108 | if (!pci_cache_line_size) { |
3109 | printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n", | |
3110 | cls << 2, pci_dfl_cache_line_size << 2); | |
2820f333 | 3111 | pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size; |
8d86fb2c DW |
3112 | } |
3113 | ||
3114 | return 0; | |
3115 | } | |
3116 | ||
cf6f3bf7 | 3117 | fs_initcall_sync(pci_apply_final_quirks); |
b9c3b266 DC |
3118 | |
3119 | /* | |
3120 | * Followings are device-specific reset methods which can be used to | |
3121 | * reset a single function if other methods (e.g. FLR, PM D0->D3) are | |
3122 | * not available. | |
3123 | */ | |
aeb30016 DC |
3124 | static int reset_intel_generic_dev(struct pci_dev *dev, int probe) |
3125 | { | |
3126 | int pos; | |
3127 | ||
3128 | /* only implement PCI_CLASS_SERIAL_USB at present */ | |
3129 | if (dev->class == PCI_CLASS_SERIAL_USB) { | |
3130 | pos = pci_find_capability(dev, PCI_CAP_ID_VNDR); | |
3131 | if (!pos) | |
3132 | return -ENOTTY; | |
3133 | ||
3134 | if (probe) | |
3135 | return 0; | |
3136 | ||
3137 | pci_write_config_byte(dev, pos + 0x4, 1); | |
3138 | msleep(100); | |
3139 | ||
3140 | return 0; | |
3141 | } else { | |
3142 | return -ENOTTY; | |
3143 | } | |
3144 | } | |
3145 | ||
c763e7b5 DC |
3146 | static int reset_intel_82599_sfp_virtfn(struct pci_dev *dev, int probe) |
3147 | { | |
76b57c67 BH |
3148 | /* |
3149 | * http://www.intel.com/content/dam/doc/datasheet/82599-10-gbe-controller-datasheet.pdf | |
3150 | * | |
3151 | * The 82599 supports FLR on VFs, but FLR support is reported only | |
3152 | * in the PF DEVCAP (sec 9.3.10.4), not in the VF DEVCAP (sec 9.5). | |
3153 | * Therefore, we can't use pcie_flr(), which checks the VF DEVCAP. | |
3154 | */ | |
3155 | ||
c763e7b5 DC |
3156 | if (probe) |
3157 | return 0; | |
3158 | ||
4d708ab0 CL |
3159 | if (!pci_wait_for_pending_transaction(dev)) |
3160 | dev_err(&dev->dev, "transaction is not cleared; proceeding with reset anyway\n"); | |
76b57c67 | 3161 | |
76b57c67 BH |
3162 | pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR); |
3163 | ||
c763e7b5 DC |
3164 | msleep(100); |
3165 | ||
3166 | return 0; | |
3167 | } | |
3168 | ||
df558de1 XH |
3169 | #include "../gpu/drm/i915/i915_reg.h" |
3170 | #define MSG_CTL 0x45010 | |
3171 | #define NSDE_PWR_STATE 0xd0100 | |
3172 | #define IGD_OPERATION_TIMEOUT 10000 /* set timeout 10 seconds */ | |
3173 | ||
3174 | static int reset_ivb_igd(struct pci_dev *dev, int probe) | |
3175 | { | |
3176 | void __iomem *mmio_base; | |
3177 | unsigned long timeout; | |
3178 | u32 val; | |
3179 | ||
3180 | if (probe) | |
3181 | return 0; | |
3182 | ||
3183 | mmio_base = pci_iomap(dev, 0, 0); | |
3184 | if (!mmio_base) | |
3185 | return -ENOMEM; | |
3186 | ||
3187 | iowrite32(0x00000002, mmio_base + MSG_CTL); | |
3188 | ||
3189 | /* | |
3190 | * Clobbering SOUTH_CHICKEN2 register is fine only if the next | |
3191 | * driver loaded sets the right bits. However, this's a reset and | |
3192 | * the bits have been set by i915 previously, so we clobber | |
3193 | * SOUTH_CHICKEN2 register directly here. | |
3194 | */ | |
3195 | iowrite32(0x00000005, mmio_base + SOUTH_CHICKEN2); | |
3196 | ||
3197 | val = ioread32(mmio_base + PCH_PP_CONTROL) & 0xfffffffe; | |
3198 | iowrite32(val, mmio_base + PCH_PP_CONTROL); | |
3199 | ||
3200 | timeout = jiffies + msecs_to_jiffies(IGD_OPERATION_TIMEOUT); | |
3201 | do { | |
3202 | val = ioread32(mmio_base + PCH_PP_STATUS); | |
3203 | if ((val & 0xb0000000) == 0) | |
3204 | goto reset_complete; | |
3205 | msleep(10); | |
3206 | } while (time_before(jiffies, timeout)); | |
3207 | dev_warn(&dev->dev, "timeout during reset\n"); | |
3208 | ||
3209 | reset_complete: | |
3210 | iowrite32(0x00000002, mmio_base + NSDE_PWR_STATE); | |
3211 | ||
3212 | pci_iounmap(dev, mmio_base); | |
3213 | return 0; | |
3214 | } | |
3215 | ||
2c6217e0 CL |
3216 | /* |
3217 | * Device-specific reset method for Chelsio T4-based adapters. | |
3218 | */ | |
3219 | static int reset_chelsio_generic_dev(struct pci_dev *dev, int probe) | |
3220 | { | |
3221 | u16 old_command; | |
3222 | u16 msix_flags; | |
3223 | ||
3224 | /* | |
3225 | * If this isn't a Chelsio T4-based device, return -ENOTTY indicating | |
3226 | * that we have no device-specific reset method. | |
3227 | */ | |
3228 | if ((dev->device & 0xf000) != 0x4000) | |
3229 | return -ENOTTY; | |
3230 | ||
3231 | /* | |
3232 | * If this is the "probe" phase, return 0 indicating that we can | |
3233 | * reset this device. | |
3234 | */ | |
3235 | if (probe) | |
3236 | return 0; | |
3237 | ||
3238 | /* | |
3239 | * T4 can wedge if there are DMAs in flight within the chip and Bus | |
3240 | * Master has been disabled. We need to have it on till the Function | |
3241 | * Level Reset completes. (BUS_MASTER is disabled in | |
3242 | * pci_reset_function()). | |
3243 | */ | |
3244 | pci_read_config_word(dev, PCI_COMMAND, &old_command); | |
3245 | pci_write_config_word(dev, PCI_COMMAND, | |
3246 | old_command | PCI_COMMAND_MASTER); | |
3247 | ||
3248 | /* | |
3249 | * Perform the actual device function reset, saving and restoring | |
3250 | * configuration information around the reset. | |
3251 | */ | |
3252 | pci_save_state(dev); | |
3253 | ||
3254 | /* | |
3255 | * T4 also suffers a Head-Of-Line blocking problem if MSI-X interrupts | |
3256 | * are disabled when an MSI-X interrupt message needs to be delivered. | |
3257 | * So we briefly re-enable MSI-X interrupts for the duration of the | |
3258 | * FLR. The pci_restore_state() below will restore the original | |
3259 | * MSI-X state. | |
3260 | */ | |
3261 | pci_read_config_word(dev, dev->msix_cap+PCI_MSIX_FLAGS, &msix_flags); | |
3262 | if ((msix_flags & PCI_MSIX_FLAGS_ENABLE) == 0) | |
3263 | pci_write_config_word(dev, dev->msix_cap+PCI_MSIX_FLAGS, | |
3264 | msix_flags | | |
3265 | PCI_MSIX_FLAGS_ENABLE | | |
3266 | PCI_MSIX_FLAGS_MASKALL); | |
3267 | ||
3268 | /* | |
3269 | * Start of pcie_flr() code sequence. This reset code is a copy of | |
3270 | * the guts of pcie_flr() because that's not an exported function. | |
3271 | */ | |
3272 | ||
3273 | if (!pci_wait_for_pending_transaction(dev)) | |
3274 | dev_err(&dev->dev, "transaction is not cleared; proceeding with reset anyway\n"); | |
3275 | ||
3276 | pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR); | |
3277 | msleep(100); | |
3278 | ||
3279 | /* | |
3280 | * End of pcie_flr() code sequence. | |
3281 | */ | |
3282 | ||
3283 | /* | |
3284 | * Restore the configuration information (BAR values, etc.) including | |
3285 | * the original PCI Configuration Space Command word, and return | |
3286 | * success. | |
3287 | */ | |
3288 | pci_restore_state(dev); | |
3289 | pci_write_config_word(dev, PCI_COMMAND, old_command); | |
3290 | return 0; | |
3291 | } | |
3292 | ||
c763e7b5 | 3293 | #define PCI_DEVICE_ID_INTEL_82599_SFP_VF 0x10ed |
df558de1 XH |
3294 | #define PCI_DEVICE_ID_INTEL_IVB_M_VGA 0x0156 |
3295 | #define PCI_DEVICE_ID_INTEL_IVB_M2_VGA 0x0166 | |
c763e7b5 | 3296 | |
5b889bf2 | 3297 | static const struct pci_dev_reset_methods pci_dev_reset_methods[] = { |
c763e7b5 DC |
3298 | { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82599_SFP_VF, |
3299 | reset_intel_82599_sfp_virtfn }, | |
df558de1 XH |
3300 | { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_M_VGA, |
3301 | reset_ivb_igd }, | |
3302 | { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_M2_VGA, | |
3303 | reset_ivb_igd }, | |
aeb30016 DC |
3304 | { PCI_VENDOR_ID_INTEL, PCI_ANY_ID, |
3305 | reset_intel_generic_dev }, | |
2c6217e0 CL |
3306 | { PCI_VENDOR_ID_CHELSIO, PCI_ANY_ID, |
3307 | reset_chelsio_generic_dev }, | |
b9c3b266 DC |
3308 | { 0 } |
3309 | }; | |
5b889bf2 | 3310 | |
df558de1 XH |
3311 | /* |
3312 | * These device-specific reset methods are here rather than in a driver | |
3313 | * because when a host assigns a device to a guest VM, the host may need | |
3314 | * to reset the device but probably doesn't have a driver for it. | |
3315 | */ | |
5b889bf2 RW |
3316 | int pci_dev_specific_reset(struct pci_dev *dev, int probe) |
3317 | { | |
df9d1e8a | 3318 | const struct pci_dev_reset_methods *i; |
5b889bf2 RW |
3319 | |
3320 | for (i = pci_dev_reset_methods; i->reset; i++) { | |
3321 | if ((i->vendor == dev->vendor || | |
3322 | i->vendor == (u16)PCI_ANY_ID) && | |
3323 | (i->device == dev->device || | |
3324 | i->device == (u16)PCI_ANY_ID)) | |
3325 | return i->reset(dev, probe); | |
3326 | } | |
3327 | ||
3328 | return -ENOTTY; | |
3329 | } | |
12ea6cad AW |
3330 | |
3331 | static struct pci_dev *pci_func_0_dma_source(struct pci_dev *dev) | |
3332 | { | |
3333 | if (!PCI_FUNC(dev->devfn)) | |
3334 | return pci_dev_get(dev); | |
3335 | ||
3336 | return pci_get_slot(dev->bus, PCI_DEVFN(PCI_SLOT(dev->devfn), 0)); | |
3337 | } | |
3338 | ||
3339 | static const struct pci_dev_dma_source { | |
3340 | u16 vendor; | |
3341 | u16 device; | |
3342 | struct pci_dev *(*dma_source)(struct pci_dev *dev); | |
3343 | } pci_dev_dma_source[] = { | |
3344 | /* | |
3345 | * https://bugzilla.redhat.com/show_bug.cgi?id=605888 | |
3346 | * | |
3347 | * Some Ricoh devices use the function 0 source ID for DMA on | |
3348 | * other functions of a multifunction device. The DMA devices | |
3349 | * is therefore function 0, which will have implications of the | |
3350 | * iommu grouping of these devices. | |
3351 | */ | |
3352 | { PCI_VENDOR_ID_RICOH, 0xe822, pci_func_0_dma_source }, | |
3353 | { PCI_VENDOR_ID_RICOH, 0xe230, pci_func_0_dma_source }, | |
3354 | { PCI_VENDOR_ID_RICOH, 0xe832, pci_func_0_dma_source }, | |
3355 | { PCI_VENDOR_ID_RICOH, 0xe476, pci_func_0_dma_source }, | |
3356 | { 0 } | |
3357 | }; | |
3358 | ||
3359 | /* | |
3360 | * IOMMUs with isolation capabilities need to be programmed with the | |
3361 | * correct source ID of a device. In most cases, the source ID matches | |
3362 | * the device doing the DMA, but sometimes hardware is broken and will | |
3363 | * tag the DMA as being sourced from a different device. This function | |
3364 | * allows that translation. Note that the reference count of the | |
3365 | * returned device is incremented on all paths. | |
3366 | */ | |
3367 | struct pci_dev *pci_get_dma_source(struct pci_dev *dev) | |
3368 | { | |
3369 | const struct pci_dev_dma_source *i; | |
3370 | ||
3371 | for (i = pci_dev_dma_source; i->dma_source; i++) { | |
3372 | if ((i->vendor == dev->vendor || | |
3373 | i->vendor == (u16)PCI_ANY_ID) && | |
3374 | (i->device == dev->device || | |
3375 | i->device == (u16)PCI_ANY_ID)) | |
3376 | return i->dma_source(dev); | |
3377 | } | |
3378 | ||
3379 | return pci_dev_get(dev); | |
3380 | } | |
ad805758 | 3381 | |
15b100df AW |
3382 | /* |
3383 | * AMD has indicated that the devices below do not support peer-to-peer | |
3384 | * in any system where they are found in the southbridge with an AMD | |
3385 | * IOMMU in the system. Multifunction devices that do not support | |
3386 | * peer-to-peer between functions can claim to support a subset of ACS. | |
3387 | * Such devices effectively enable request redirect (RR) and completion | |
3388 | * redirect (CR) since all transactions are redirected to the upstream | |
3389 | * root complex. | |
3390 | * | |
3391 | * http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/94086 | |
3392 | * http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/94102 | |
3393 | * http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/99402 | |
3394 | * | |
3395 | * 1002:4385 SBx00 SMBus Controller | |
3396 | * 1002:439c SB7x0/SB8x0/SB9x0 IDE Controller | |
3397 | * 1002:4383 SBx00 Azalia (Intel HDA) | |
3398 | * 1002:439d SB7x0/SB8x0/SB9x0 LPC host controller | |
3399 | * 1002:4384 SBx00 PCI to PCI Bridge | |
3400 | * 1002:4399 SB7x0/SB8x0/SB9x0 USB OHCI2 Controller | |
3401 | */ | |
3402 | static int pci_quirk_amd_sb_acs(struct pci_dev *dev, u16 acs_flags) | |
3403 | { | |
3404 | #ifdef CONFIG_ACPI | |
3405 | struct acpi_table_header *header = NULL; | |
3406 | acpi_status status; | |
3407 | ||
3408 | /* Targeting multifunction devices on the SB (appears on root bus) */ | |
3409 | if (!dev->multifunction || !pci_is_root_bus(dev->bus)) | |
3410 | return -ENODEV; | |
3411 | ||
3412 | /* The IVRS table describes the AMD IOMMU */ | |
3413 | status = acpi_get_table("IVRS", 0, &header); | |
3414 | if (ACPI_FAILURE(status)) | |
3415 | return -ENODEV; | |
3416 | ||
3417 | /* Filter out flags not applicable to multifunction */ | |
3418 | acs_flags &= (PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_EC | PCI_ACS_DT); | |
3419 | ||
3420 | return acs_flags & ~(PCI_ACS_RR | PCI_ACS_CR) ? 0 : 1; | |
3421 | #else | |
3422 | return -ENODEV; | |
3423 | #endif | |
3424 | } | |
3425 | ||
ad805758 AW |
3426 | static const struct pci_dev_acs_enabled { |
3427 | u16 vendor; | |
3428 | u16 device; | |
3429 | int (*acs_enabled)(struct pci_dev *dev, u16 acs_flags); | |
3430 | } pci_dev_acs_enabled[] = { | |
15b100df AW |
3431 | { PCI_VENDOR_ID_ATI, 0x4385, pci_quirk_amd_sb_acs }, |
3432 | { PCI_VENDOR_ID_ATI, 0x439c, pci_quirk_amd_sb_acs }, | |
3433 | { PCI_VENDOR_ID_ATI, 0x4383, pci_quirk_amd_sb_acs }, | |
3434 | { PCI_VENDOR_ID_ATI, 0x439d, pci_quirk_amd_sb_acs }, | |
3435 | { PCI_VENDOR_ID_ATI, 0x4384, pci_quirk_amd_sb_acs }, | |
3436 | { PCI_VENDOR_ID_ATI, 0x4399, pci_quirk_amd_sb_acs }, | |
ad805758 AW |
3437 | { 0 } |
3438 | }; | |
3439 | ||
3440 | int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags) | |
3441 | { | |
3442 | const struct pci_dev_acs_enabled *i; | |
3443 | int ret; | |
3444 | ||
3445 | /* | |
3446 | * Allow devices that do not expose standard PCIe ACS capabilities | |
3447 | * or control to indicate their support here. Multi-function express | |
3448 | * devices which do not allow internal peer-to-peer between functions, | |
3449 | * but do not implement PCIe ACS may wish to return true here. | |
3450 | */ | |
3451 | for (i = pci_dev_acs_enabled; i->acs_enabled; i++) { | |
3452 | if ((i->vendor == dev->vendor || | |
3453 | i->vendor == (u16)PCI_ANY_ID) && | |
3454 | (i->device == dev->device || | |
3455 | i->device == (u16)PCI_ANY_ID)) { | |
3456 | ret = i->acs_enabled(dev, acs_flags); | |
3457 | if (ret >= 0) | |
3458 | return ret; | |
3459 | } | |
3460 | } | |
3461 | ||
3462 | return -ENOTTY; | |
3463 | } |