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> | |
9fe373f9 | 27 | #include <linux/mm.h> |
93177a74 | 28 | #include <asm/dma.h> /* isa_dma_bridge_buggy */ |
bc56b9e0 | 29 | #include "pci.h" |
1da177e4 | 30 | |
253d2e54 JP |
31 | /* |
32 | * Decoding should be disabled for a PCI device during BAR sizing to avoid | |
33 | * conflict. But doing so may cause problems on host bridge and perhaps other | |
34 | * key system devices. For devices that need to have mmio decoding always-on, | |
35 | * we need to set the dev->mmio_always_on bit. | |
36 | */ | |
15856ad5 | 37 | static void quirk_mmio_always_on(struct pci_dev *dev) |
253d2e54 | 38 | { |
52d21b5e | 39 | dev->mmio_always_on = 1; |
253d2e54 | 40 | } |
52d21b5e YL |
41 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_ANY_ID, PCI_ANY_ID, |
42 | PCI_CLASS_BRIDGE_HOST, 8, quirk_mmio_always_on); | |
253d2e54 | 43 | |
bd8481e1 DT |
44 | /* The Mellanox Tavor device gives false positive parity errors |
45 | * Mark this device with a broken_parity_status, to allow | |
46 | * PCI scanning code to "skip" this now blacklisted device. | |
47 | */ | |
15856ad5 | 48 | static void quirk_mellanox_tavor(struct pci_dev *dev) |
bd8481e1 DT |
49 | { |
50 | dev->broken_parity_status = 1; /* This device gives false positives */ | |
51 | } | |
3c78bc61 RD |
52 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR, quirk_mellanox_tavor); |
53 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE, quirk_mellanox_tavor); | |
bd8481e1 | 54 | |
f7625980 | 55 | /* Deal with broken BIOSes that neglect to enable passive release, |
1da177e4 | 56 | which can cause problems in combination with the 82441FX/PPro MTRRs */ |
1597cacb | 57 | static void quirk_passive_release(struct pci_dev *dev) |
1da177e4 LT |
58 | { |
59 | struct pci_dev *d = NULL; | |
60 | unsigned char dlc; | |
61 | ||
62 | /* We have to make sure a particular bit is set in the PIIX3 | |
63 | ISA bridge, so we have to go out and find it. */ | |
64 | while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) { | |
65 | pci_read_config_byte(d, 0x82, &dlc); | |
66 | if (!(dlc & 1<<1)) { | |
999da9fd | 67 | dev_info(&d->dev, "PIIX3: Enabling Passive Release\n"); |
1da177e4 LT |
68 | dlc |= 1<<1; |
69 | pci_write_config_byte(d, 0x82, dlc); | |
70 | } | |
71 | } | |
72 | } | |
652c538e AM |
73 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release); |
74 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release); | |
1da177e4 LT |
75 | |
76 | /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround | |
77 | but VIA don't answer queries. If you happen to have good contacts at VIA | |
f7625980 BH |
78 | ask them for me please -- Alan |
79 | ||
80 | This appears to be BIOS not version dependent. So presumably there is a | |
1da177e4 | 81 | chipset level fix */ |
f7625980 | 82 | |
15856ad5 | 83 | static void quirk_isa_dma_hangs(struct pci_dev *dev) |
1da177e4 LT |
84 | { |
85 | if (!isa_dma_bridge_buggy) { | |
3c78bc61 | 86 | isa_dma_bridge_buggy = 1; |
f0fda801 | 87 | dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n"); |
1da177e4 LT |
88 | } |
89 | } | |
90 | /* | |
91 | * Its not totally clear which chipsets are the problematic ones | |
92 | * We know 82C586 and 82C596 variants are affected. | |
93 | */ | |
652c538e AM |
94 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs); |
95 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs); | |
96 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs); | |
f7625980 | 97 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs); |
652c538e AM |
98 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs); |
99 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs); | |
100 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs); | |
1da177e4 | 101 | |
4731fdcf LB |
102 | /* |
103 | * Intel NM10 "TigerPoint" LPC PM1a_STS.BM_STS must be clear | |
104 | * for some HT machines to use C4 w/o hanging. | |
105 | */ | |
15856ad5 | 106 | static void quirk_tigerpoint_bm_sts(struct pci_dev *dev) |
4731fdcf LB |
107 | { |
108 | u32 pmbase; | |
109 | u16 pm1a; | |
110 | ||
111 | pci_read_config_dword(dev, 0x40, &pmbase); | |
112 | pmbase = pmbase & 0xff80; | |
113 | pm1a = inw(pmbase); | |
114 | ||
115 | if (pm1a & 0x10) { | |
116 | dev_info(&dev->dev, FW_BUG "TigerPoint LPC.BM_STS cleared\n"); | |
117 | outw(0x10, pmbase); | |
118 | } | |
119 | } | |
120 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGP_LPC, quirk_tigerpoint_bm_sts); | |
121 | ||
1da177e4 LT |
122 | /* |
123 | * Chipsets where PCI->PCI transfers vanish or hang | |
124 | */ | |
15856ad5 | 125 | static void quirk_nopcipci(struct pci_dev *dev) |
1da177e4 | 126 | { |
3c78bc61 | 127 | if ((pci_pci_problems & PCIPCI_FAIL) == 0) { |
f0fda801 | 128 | dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n"); |
1da177e4 LT |
129 | pci_pci_problems |= PCIPCI_FAIL; |
130 | } | |
131 | } | |
652c538e AM |
132 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci); |
133 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci); | |
236561e5 | 134 | |
15856ad5 | 135 | static void quirk_nopciamd(struct pci_dev *dev) |
236561e5 AC |
136 | { |
137 | u8 rev; | |
138 | pci_read_config_byte(dev, 0x08, &rev); | |
139 | if (rev == 0x13) { | |
140 | /* Erratum 24 */ | |
f0fda801 | 141 | dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n"); |
236561e5 AC |
142 | pci_pci_problems |= PCIAGP_FAIL; |
143 | } | |
144 | } | |
652c538e | 145 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd); |
1da177e4 LT |
146 | |
147 | /* | |
148 | * Triton requires workarounds to be used by the drivers | |
149 | */ | |
15856ad5 | 150 | static void quirk_triton(struct pci_dev *dev) |
1da177e4 | 151 | { |
3c78bc61 | 152 | if ((pci_pci_problems&PCIPCI_TRITON) == 0) { |
f0fda801 | 153 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
1da177e4 LT |
154 | pci_pci_problems |= PCIPCI_TRITON; |
155 | } | |
156 | } | |
f7625980 BH |
157 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton); |
158 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton); | |
159 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton); | |
160 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton); | |
1da177e4 LT |
161 | |
162 | /* | |
163 | * VIA Apollo KT133 needs PCI latency patch | |
164 | * Made according to a windows driver based patch by George E. Breese | |
165 | * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm | |
631dd1a8 | 166 | * and http://www.georgebreese.com/net/software/#PCI |
3c78bc61 RD |
167 | * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for |
168 | * the info on which Mr Breese based his work. | |
1da177e4 LT |
169 | * |
170 | * Updated based on further information from the site and also on | |
f7625980 | 171 | * information provided by VIA |
1da177e4 | 172 | */ |
1597cacb | 173 | static void quirk_vialatency(struct pci_dev *dev) |
1da177e4 LT |
174 | { |
175 | struct pci_dev *p; | |
1da177e4 LT |
176 | u8 busarb; |
177 | /* Ok we have a potential problem chipset here. Now see if we have | |
178 | a buggy southbridge */ | |
f7625980 | 179 | |
1da177e4 | 180 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL); |
3c78bc61 | 181 | if (p != NULL) { |
1da177e4 LT |
182 | /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */ |
183 | /* Check for buggy part revisions */ | |
2b1afa87 | 184 | if (p->revision < 0x40 || p->revision > 0x42) |
1da177e4 LT |
185 | goto exit; |
186 | } else { | |
187 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL); | |
3c78bc61 | 188 | if (p == NULL) /* No problem parts */ |
1da177e4 | 189 | goto exit; |
1da177e4 | 190 | /* Check for buggy part revisions */ |
2b1afa87 | 191 | if (p->revision < 0x10 || p->revision > 0x12) |
1da177e4 LT |
192 | goto exit; |
193 | } | |
f7625980 | 194 | |
1da177e4 | 195 | /* |
f7625980 | 196 | * Ok we have the problem. Now set the PCI master grant to |
1da177e4 LT |
197 | * occur every master grant. The apparent bug is that under high |
198 | * PCI load (quite common in Linux of course) you can get data | |
199 | * loss when the CPU is held off the bus for 3 bus master requests | |
200 | * This happens to include the IDE controllers.... | |
201 | * | |
202 | * VIA only apply this fix when an SB Live! is present but under | |
25985edc | 203 | * both Linux and Windows this isn't enough, and we have seen |
1da177e4 LT |
204 | * corruption without SB Live! but with things like 3 UDMA IDE |
205 | * controllers. So we ignore that bit of the VIA recommendation.. | |
206 | */ | |
207 | ||
208 | pci_read_config_byte(dev, 0x76, &busarb); | |
f7625980 | 209 | /* Set bit 4 and bi 5 of byte 76 to 0x01 |
1da177e4 LT |
210 | "Master priority rotation on every PCI master grant */ |
211 | busarb &= ~(1<<5); | |
212 | busarb |= (1<<4); | |
213 | pci_write_config_byte(dev, 0x76, busarb); | |
f0fda801 | 214 | dev_info(&dev->dev, "Applying VIA southbridge workaround\n"); |
1da177e4 LT |
215 | exit: |
216 | pci_dev_put(p); | |
217 | } | |
652c538e AM |
218 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency); |
219 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency); | |
220 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency); | |
1597cacb | 221 | /* Must restore this on a resume from RAM */ |
652c538e AM |
222 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency); |
223 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency); | |
224 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency); | |
1da177e4 LT |
225 | |
226 | /* | |
227 | * VIA Apollo VP3 needs ETBF on BT848/878 | |
228 | */ | |
15856ad5 | 229 | static void quirk_viaetbf(struct pci_dev *dev) |
1da177e4 | 230 | { |
3c78bc61 | 231 | if ((pci_pci_problems&PCIPCI_VIAETBF) == 0) { |
f0fda801 | 232 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
1da177e4 LT |
233 | pci_pci_problems |= PCIPCI_VIAETBF; |
234 | } | |
235 | } | |
652c538e | 236 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf); |
1da177e4 | 237 | |
15856ad5 | 238 | static void quirk_vsfx(struct pci_dev *dev) |
1da177e4 | 239 | { |
3c78bc61 | 240 | if ((pci_pci_problems&PCIPCI_VSFX) == 0) { |
f0fda801 | 241 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
1da177e4 LT |
242 | pci_pci_problems |= PCIPCI_VSFX; |
243 | } | |
244 | } | |
652c538e | 245 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx); |
1da177e4 LT |
246 | |
247 | /* | |
248 | * Ali Magik requires workarounds to be used by the drivers | |
249 | * that DMA to AGP space. Latency must be set to 0xA and triton | |
250 | * workaround applied too | |
251 | * [Info kindly provided by ALi] | |
f7625980 | 252 | */ |
15856ad5 | 253 | static void quirk_alimagik(struct pci_dev *dev) |
1da177e4 | 254 | { |
3c78bc61 | 255 | if ((pci_pci_problems&PCIPCI_ALIMAGIK) == 0) { |
f0fda801 | 256 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
1da177e4 LT |
257 | pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON; |
258 | } | |
259 | } | |
f7625980 BH |
260 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik); |
261 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik); | |
1da177e4 LT |
262 | |
263 | /* | |
264 | * Natoma has some interesting boundary conditions with Zoran stuff | |
265 | * at least | |
266 | */ | |
15856ad5 | 267 | static void quirk_natoma(struct pci_dev *dev) |
1da177e4 | 268 | { |
3c78bc61 | 269 | if ((pci_pci_problems&PCIPCI_NATOMA) == 0) { |
f0fda801 | 270 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
1da177e4 LT |
271 | pci_pci_problems |= PCIPCI_NATOMA; |
272 | } | |
273 | } | |
f7625980 BH |
274 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma); |
275 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma); | |
276 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma); | |
277 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma); | |
278 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma); | |
279 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma); | |
1da177e4 LT |
280 | |
281 | /* | |
282 | * This chip can cause PCI parity errors if config register 0xA0 is read | |
283 | * while DMAs are occurring. | |
284 | */ | |
15856ad5 | 285 | static void quirk_citrine(struct pci_dev *dev) |
1da177e4 LT |
286 | { |
287 | dev->cfg_size = 0xA0; | |
288 | } | |
652c538e | 289 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine); |
1da177e4 | 290 | |
9fe373f9 DL |
291 | /* On IBM Crocodile ipr SAS adapters, expand BAR to system page size */ |
292 | static void quirk_extend_bar_to_page(struct pci_dev *dev) | |
293 | { | |
294 | int i; | |
295 | ||
296 | for (i = 0; i < PCI_STD_RESOURCE_END; i++) { | |
297 | struct resource *r = &dev->resource[i]; | |
298 | ||
299 | if (r->flags & IORESOURCE_MEM && resource_size(r) < PAGE_SIZE) { | |
300 | r->end = PAGE_SIZE - 1; | |
301 | r->start = 0; | |
302 | r->flags |= IORESOURCE_UNSET; | |
303 | dev_info(&dev->dev, "expanded BAR %d to page size: %pR\n", | |
304 | i, r); | |
305 | } | |
306 | } | |
307 | } | |
308 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, 0x034a, quirk_extend_bar_to_page); | |
309 | ||
1da177e4 LT |
310 | /* |
311 | * S3 868 and 968 chips report region size equal to 32M, but they decode 64M. | |
312 | * If it's needed, re-allocate the region. | |
313 | */ | |
15856ad5 | 314 | static void quirk_s3_64M(struct pci_dev *dev) |
1da177e4 LT |
315 | { |
316 | struct resource *r = &dev->resource[0]; | |
317 | ||
318 | if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) { | |
bd064f0a | 319 | r->flags |= IORESOURCE_UNSET; |
1da177e4 LT |
320 | r->start = 0; |
321 | r->end = 0x3ffffff; | |
322 | } | |
323 | } | |
652c538e AM |
324 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M); |
325 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M); | |
1da177e4 | 326 | |
73d2eaac AS |
327 | /* |
328 | * Some CS5536 BIOSes (for example, the Soekris NET5501 board w/ comBIOS | |
329 | * ver. 1.33 20070103) don't set the correct ISA PCI region header info. | |
330 | * BAR0 should be 8 bytes; instead, it may be set to something like 8k | |
331 | * (which conflicts w/ BAR1's memory range). | |
332 | */ | |
15856ad5 | 333 | static void quirk_cs5536_vsa(struct pci_dev *dev) |
73d2eaac AS |
334 | { |
335 | if (pci_resource_len(dev, 0) != 8) { | |
336 | struct resource *res = &dev->resource[0]; | |
337 | res->end = res->start + 8 - 1; | |
227f0647 | 338 | dev_info(&dev->dev, "CS5536 ISA bridge bug detected (incorrect header); workaround applied\n"); |
73d2eaac AS |
339 | } |
340 | } | |
341 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_cs5536_vsa); | |
342 | ||
65195c76 YL |
343 | static void quirk_io_region(struct pci_dev *dev, int port, |
344 | unsigned size, int nr, const char *name) | |
345 | { | |
346 | u16 region; | |
347 | struct pci_bus_region bus_region; | |
348 | struct resource *res = dev->resource + nr; | |
349 | ||
350 | pci_read_config_word(dev, port, ®ion); | |
351 | region &= ~(size - 1); | |
352 | ||
353 | if (!region) | |
354 | return; | |
355 | ||
356 | res->name = pci_name(dev); | |
357 | res->flags = IORESOURCE_IO; | |
358 | ||
359 | /* Convert from PCI bus to resource space */ | |
360 | bus_region.start = region; | |
361 | bus_region.end = region + size - 1; | |
fc279850 | 362 | pcibios_bus_to_resource(dev->bus, res, &bus_region); |
65195c76 YL |
363 | |
364 | if (!pci_claim_resource(dev, nr)) | |
365 | dev_info(&dev->dev, "quirk: %pR claimed by %s\n", res, name); | |
366 | } | |
1da177e4 LT |
367 | |
368 | /* | |
369 | * ATI Northbridge setups MCE the processor if you even | |
370 | * read somewhere between 0x3b0->0x3bb or read 0x3d3 | |
371 | */ | |
15856ad5 | 372 | static void quirk_ati_exploding_mce(struct pci_dev *dev) |
1da177e4 | 373 | { |
f0fda801 | 374 | dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n"); |
1da177e4 LT |
375 | /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */ |
376 | request_region(0x3b0, 0x0C, "RadeonIGP"); | |
377 | request_region(0x3d3, 0x01, "RadeonIGP"); | |
378 | } | |
652c538e | 379 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce); |
1da177e4 | 380 | |
be6646bf HR |
381 | /* |
382 | * In the AMD NL platform, this device ([1022:7912]) has a class code of | |
383 | * PCI_CLASS_SERIAL_USB_XHCI (0x0c0330), which means the xhci driver will | |
384 | * claim it. | |
385 | * But the dwc3 driver is a more specific driver for this device, and we'd | |
386 | * prefer to use it instead of xhci. To prevent xhci from claiming the | |
387 | * device, change the class code to 0x0c03fe, which the PCI r3.0 spec | |
388 | * defines as "USB device (not host controller)". The dwc3 driver can then | |
389 | * claim it based on its Vendor and Device ID. | |
390 | */ | |
391 | static void quirk_amd_nl_class(struct pci_dev *pdev) | |
392 | { | |
393 | /* | |
394 | * Use 'USB Device' (0x0c03fe) instead of PCI header provided | |
395 | */ | |
396 | pdev->class = 0x0c03fe; | |
397 | } | |
398 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB, | |
399 | quirk_amd_nl_class); | |
400 | ||
1da177e4 LT |
401 | /* |
402 | * Let's make the southbridge information explicit instead | |
403 | * of having to worry about people probing the ACPI areas, | |
404 | * for example.. (Yes, it happens, and if you read the wrong | |
405 | * ACPI register it will put the machine to sleep with no | |
406 | * way of waking it up again. Bummer). | |
407 | * | |
408 | * ALI M7101: Two IO regions pointed to by words at | |
409 | * 0xE0 (64 bytes of ACPI registers) | |
410 | * 0xE2 (32 bytes of SMB registers) | |
411 | */ | |
15856ad5 | 412 | static void quirk_ali7101_acpi(struct pci_dev *dev) |
1da177e4 | 413 | { |
65195c76 YL |
414 | quirk_io_region(dev, 0xE0, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI"); |
415 | quirk_io_region(dev, 0xE2, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB"); | |
1da177e4 | 416 | } |
652c538e | 417 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi); |
1da177e4 | 418 | |
6693e74a LT |
419 | static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable) |
420 | { | |
421 | u32 devres; | |
422 | u32 mask, size, base; | |
423 | ||
424 | pci_read_config_dword(dev, port, &devres); | |
425 | if ((devres & enable) != enable) | |
426 | return; | |
427 | mask = (devres >> 16) & 15; | |
428 | base = devres & 0xffff; | |
429 | size = 16; | |
430 | for (;;) { | |
431 | unsigned bit = size >> 1; | |
432 | if ((bit & mask) == bit) | |
433 | break; | |
434 | size = bit; | |
435 | } | |
436 | /* | |
437 | * For now we only print it out. Eventually we'll want to | |
438 | * reserve it (at least if it's in the 0x1000+ range), but | |
f7625980 | 439 | * let's get enough confirmation reports first. |
6693e74a LT |
440 | */ |
441 | base &= -size; | |
227f0647 RD |
442 | dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, |
443 | base + size - 1); | |
6693e74a LT |
444 | } |
445 | ||
446 | static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable) | |
447 | { | |
448 | u32 devres; | |
449 | u32 mask, size, base; | |
450 | ||
451 | pci_read_config_dword(dev, port, &devres); | |
452 | if ((devres & enable) != enable) | |
453 | return; | |
454 | base = devres & 0xffff0000; | |
455 | mask = (devres & 0x3f) << 16; | |
456 | size = 128 << 16; | |
457 | for (;;) { | |
458 | unsigned bit = size >> 1; | |
459 | if ((bit & mask) == bit) | |
460 | break; | |
461 | size = bit; | |
462 | } | |
463 | /* | |
464 | * For now we only print it out. Eventually we'll want to | |
f7625980 | 465 | * reserve it, but let's get enough confirmation reports first. |
6693e74a LT |
466 | */ |
467 | base &= -size; | |
227f0647 RD |
468 | dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, |
469 | base + size - 1); | |
6693e74a LT |
470 | } |
471 | ||
1da177e4 LT |
472 | /* |
473 | * PIIX4 ACPI: Two IO regions pointed to by longwords at | |
474 | * 0x40 (64 bytes of ACPI registers) | |
08db2a70 | 475 | * 0x90 (16 bytes of SMB registers) |
6693e74a | 476 | * and a few strange programmable PIIX4 device resources. |
1da177e4 | 477 | */ |
15856ad5 | 478 | static void quirk_piix4_acpi(struct pci_dev *dev) |
1da177e4 | 479 | { |
65195c76 | 480 | u32 res_a; |
1da177e4 | 481 | |
65195c76 YL |
482 | quirk_io_region(dev, 0x40, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI"); |
483 | quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB"); | |
6693e74a LT |
484 | |
485 | /* Device resource A has enables for some of the other ones */ | |
486 | pci_read_config_dword(dev, 0x5c, &res_a); | |
487 | ||
488 | piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21); | |
489 | piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21); | |
490 | ||
491 | /* Device resource D is just bitfields for static resources */ | |
492 | ||
493 | /* Device 12 enabled? */ | |
494 | if (res_a & (1 << 29)) { | |
495 | piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20); | |
496 | piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7); | |
497 | } | |
498 | /* Device 13 enabled? */ | |
499 | if (res_a & (1 << 30)) { | |
500 | piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20); | |
501 | piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7); | |
502 | } | |
503 | piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20); | |
504 | piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20); | |
1da177e4 | 505 | } |
652c538e AM |
506 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi); |
507 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi); | |
1da177e4 | 508 | |
cdb97558 JS |
509 | #define ICH_PMBASE 0x40 |
510 | #define ICH_ACPI_CNTL 0x44 | |
511 | #define ICH4_ACPI_EN 0x10 | |
512 | #define ICH6_ACPI_EN 0x80 | |
513 | #define ICH4_GPIOBASE 0x58 | |
514 | #define ICH4_GPIO_CNTL 0x5c | |
515 | #define ICH4_GPIO_EN 0x10 | |
516 | #define ICH6_GPIOBASE 0x48 | |
517 | #define ICH6_GPIO_CNTL 0x4c | |
518 | #define ICH6_GPIO_EN 0x10 | |
519 | ||
1da177e4 LT |
520 | /* |
521 | * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at | |
522 | * 0x40 (128 bytes of ACPI, GPIO & TCO registers) | |
523 | * 0x58 (64 bytes of GPIO I/O space) | |
524 | */ | |
15856ad5 | 525 | static void quirk_ich4_lpc_acpi(struct pci_dev *dev) |
1da177e4 | 526 | { |
cdb97558 | 527 | u8 enable; |
1da177e4 | 528 | |
87e3dc38 JS |
529 | /* |
530 | * The check for PCIBIOS_MIN_IO is to ensure we won't create a conflict | |
531 | * with low legacy (and fixed) ports. We don't know the decoding | |
532 | * priority and can't tell whether the legacy device or the one created | |
533 | * here is really at that address. This happens on boards with broken | |
534 | * BIOSes. | |
535 | */ | |
536 | ||
cdb97558 | 537 | pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable); |
65195c76 YL |
538 | if (enable & ICH4_ACPI_EN) |
539 | quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES, | |
540 | "ICH4 ACPI/GPIO/TCO"); | |
1da177e4 | 541 | |
cdb97558 | 542 | pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable); |
65195c76 YL |
543 | if (enable & ICH4_GPIO_EN) |
544 | quirk_io_region(dev, ICH4_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1, | |
545 | "ICH4 GPIO"); | |
1da177e4 | 546 | } |
652c538e AM |
547 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi); |
548 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi); | |
549 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi); | |
550 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi); | |
551 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi); | |
552 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi); | |
553 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi); | |
554 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi); | |
555 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi); | |
556 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi); | |
1da177e4 | 557 | |
15856ad5 | 558 | static void ich6_lpc_acpi_gpio(struct pci_dev *dev) |
2cea752f | 559 | { |
cdb97558 | 560 | u8 enable; |
2cea752f | 561 | |
cdb97558 | 562 | pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable); |
65195c76 YL |
563 | if (enable & ICH6_ACPI_EN) |
564 | quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES, | |
565 | "ICH6 ACPI/GPIO/TCO"); | |
2cea752f | 566 | |
cdb97558 | 567 | pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable); |
65195c76 YL |
568 | if (enable & ICH6_GPIO_EN) |
569 | quirk_io_region(dev, ICH6_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1, | |
570 | "ICH6 GPIO"); | |
2cea752f | 571 | } |
894886e5 | 572 | |
15856ad5 | 573 | static void ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize) |
894886e5 LT |
574 | { |
575 | u32 val; | |
576 | u32 size, base; | |
577 | ||
578 | pci_read_config_dword(dev, reg, &val); | |
579 | ||
580 | /* Enabled? */ | |
581 | if (!(val & 1)) | |
582 | return; | |
583 | base = val & 0xfffc; | |
584 | if (dynsize) { | |
585 | /* | |
586 | * This is not correct. It is 16, 32 or 64 bytes depending on | |
587 | * register D31:F0:ADh bits 5:4. | |
588 | * | |
589 | * But this gets us at least _part_ of it. | |
590 | */ | |
591 | size = 16; | |
592 | } else { | |
593 | size = 128; | |
594 | } | |
595 | base &= ~(size-1); | |
596 | ||
597 | /* Just print it out for now. We should reserve it after more debugging */ | |
598 | dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base+size-1); | |
599 | } | |
600 | ||
15856ad5 | 601 | static void quirk_ich6_lpc(struct pci_dev *dev) |
894886e5 LT |
602 | { |
603 | /* Shared ACPI/GPIO decode with all ICH6+ */ | |
604 | ich6_lpc_acpi_gpio(dev); | |
605 | ||
606 | /* ICH6-specific generic IO decode */ | |
607 | ich6_lpc_generic_decode(dev, 0x84, "LPC Generic IO decode 1", 0); | |
608 | ich6_lpc_generic_decode(dev, 0x88, "LPC Generic IO decode 2", 1); | |
609 | } | |
610 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc); | |
611 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc); | |
612 | ||
15856ad5 | 613 | static void ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name) |
894886e5 LT |
614 | { |
615 | u32 val; | |
616 | u32 mask, base; | |
617 | ||
618 | pci_read_config_dword(dev, reg, &val); | |
619 | ||
620 | /* Enabled? */ | |
621 | if (!(val & 1)) | |
622 | return; | |
623 | ||
624 | /* | |
625 | * IO base in bits 15:2, mask in bits 23:18, both | |
626 | * are dword-based | |
627 | */ | |
628 | base = val & 0xfffc; | |
629 | mask = (val >> 16) & 0xfc; | |
630 | mask |= 3; | |
631 | ||
632 | /* Just print it out for now. We should reserve it after more debugging */ | |
633 | dev_info(&dev->dev, "%s PIO at %04x (mask %04x)\n", name, base, mask); | |
634 | } | |
635 | ||
636 | /* ICH7-10 has the same common LPC generic IO decode registers */ | |
15856ad5 | 637 | static void quirk_ich7_lpc(struct pci_dev *dev) |
894886e5 | 638 | { |
5d9c0a79 | 639 | /* We share the common ACPI/GPIO decode with ICH6 */ |
894886e5 LT |
640 | ich6_lpc_acpi_gpio(dev); |
641 | ||
642 | /* And have 4 ICH7+ generic decodes */ | |
643 | ich7_lpc_generic_decode(dev, 0x84, "ICH7 LPC Generic IO decode 1"); | |
644 | ich7_lpc_generic_decode(dev, 0x88, "ICH7 LPC Generic IO decode 2"); | |
645 | ich7_lpc_generic_decode(dev, 0x8c, "ICH7 LPC Generic IO decode 3"); | |
646 | ich7_lpc_generic_decode(dev, 0x90, "ICH7 LPC Generic IO decode 4"); | |
647 | } | |
648 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich7_lpc); | |
649 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich7_lpc); | |
650 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich7_lpc); | |
651 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich7_lpc); | |
652 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich7_lpc); | |
653 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich7_lpc); | |
654 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich7_lpc); | |
655 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich7_lpc); | |
656 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich7_lpc); | |
657 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich7_lpc); | |
658 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich7_lpc); | |
659 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich7_lpc); | |
660 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1, quirk_ich7_lpc); | |
2cea752f | 661 | |
1da177e4 LT |
662 | /* |
663 | * VIA ACPI: One IO region pointed to by longword at | |
664 | * 0x48 or 0x20 (256 bytes of ACPI registers) | |
665 | */ | |
15856ad5 | 666 | static void quirk_vt82c586_acpi(struct pci_dev *dev) |
1da177e4 | 667 | { |
65195c76 YL |
668 | if (dev->revision & 0x10) |
669 | quirk_io_region(dev, 0x48, 256, PCI_BRIDGE_RESOURCES, | |
670 | "vt82c586 ACPI"); | |
1da177e4 | 671 | } |
652c538e | 672 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi); |
1da177e4 LT |
673 | |
674 | /* | |
675 | * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at | |
676 | * 0x48 (256 bytes of ACPI registers) | |
677 | * 0x70 (128 bytes of hardware monitoring register) | |
678 | * 0x90 (16 bytes of SMB registers) | |
679 | */ | |
15856ad5 | 680 | static void quirk_vt82c686_acpi(struct pci_dev *dev) |
1da177e4 | 681 | { |
1da177e4 LT |
682 | quirk_vt82c586_acpi(dev); |
683 | ||
65195c76 YL |
684 | quirk_io_region(dev, 0x70, 128, PCI_BRIDGE_RESOURCES+1, |
685 | "vt82c686 HW-mon"); | |
1da177e4 | 686 | |
65195c76 | 687 | quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+2, "vt82c686 SMB"); |
1da177e4 | 688 | } |
652c538e | 689 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi); |
1da177e4 | 690 | |
6d85f29b IK |
691 | /* |
692 | * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at | |
693 | * 0x88 (128 bytes of power management registers) | |
694 | * 0xd0 (16 bytes of SMB registers) | |
695 | */ | |
15856ad5 | 696 | static void quirk_vt8235_acpi(struct pci_dev *dev) |
6d85f29b | 697 | { |
65195c76 YL |
698 | quirk_io_region(dev, 0x88, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM"); |
699 | quirk_io_region(dev, 0xd0, 16, PCI_BRIDGE_RESOURCES+1, "vt8235 SMB"); | |
6d85f29b IK |
700 | } |
701 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi); | |
702 | ||
1f56f4a2 GB |
703 | /* |
704 | * TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back: | |
705 | * Disable fast back-to-back on the secondary bus segment | |
706 | */ | |
15856ad5 | 707 | static void quirk_xio2000a(struct pci_dev *dev) |
1f56f4a2 GB |
708 | { |
709 | struct pci_dev *pdev; | |
710 | u16 command; | |
711 | ||
227f0647 | 712 | dev_warn(&dev->dev, "TI XIO2000a quirk detected; secondary bus fast back-to-back transfers disabled\n"); |
1f56f4a2 GB |
713 | list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) { |
714 | pci_read_config_word(pdev, PCI_COMMAND, &command); | |
715 | if (command & PCI_COMMAND_FAST_BACK) | |
716 | pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK); | |
717 | } | |
718 | } | |
719 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A, | |
720 | quirk_xio2000a); | |
1da177e4 | 721 | |
f7625980 | 722 | #ifdef CONFIG_X86_IO_APIC |
1da177e4 LT |
723 | |
724 | #include <asm/io_apic.h> | |
725 | ||
726 | /* | |
727 | * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip | |
728 | * devices to the external APIC. | |
729 | * | |
730 | * TODO: When we have device-specific interrupt routers, | |
731 | * this code will go away from quirks. | |
732 | */ | |
1597cacb | 733 | static void quirk_via_ioapic(struct pci_dev *dev) |
1da177e4 LT |
734 | { |
735 | u8 tmp; | |
f7625980 | 736 | |
1da177e4 LT |
737 | if (nr_ioapics < 1) |
738 | tmp = 0; /* nothing routed to external APIC */ | |
739 | else | |
740 | tmp = 0x1f; /* all known bits (4-0) routed to external APIC */ | |
f7625980 | 741 | |
f0fda801 | 742 | dev_info(&dev->dev, "%sbling VIA external APIC routing\n", |
1da177e4 LT |
743 | tmp == 0 ? "Disa" : "Ena"); |
744 | ||
745 | /* Offset 0x58: External APIC IRQ output control */ | |
3c78bc61 | 746 | pci_write_config_byte(dev, 0x58, tmp); |
1da177e4 | 747 | } |
652c538e | 748 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic); |
e1a2a51e | 749 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic); |
1da177e4 | 750 | |
a1740913 | 751 | /* |
f7625980 | 752 | * VIA 8237: Some BIOSes don't set the 'Bypass APIC De-Assert Message' Bit. |
a1740913 KW |
753 | * This leads to doubled level interrupt rates. |
754 | * Set this bit to get rid of cycle wastage. | |
755 | * Otherwise uncritical. | |
756 | */ | |
1597cacb | 757 | static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev) |
a1740913 KW |
758 | { |
759 | u8 misc_control2; | |
760 | #define BYPASS_APIC_DEASSERT 8 | |
761 | ||
762 | pci_read_config_byte(dev, 0x5B, &misc_control2); | |
763 | if (!(misc_control2 & BYPASS_APIC_DEASSERT)) { | |
f0fda801 | 764 | dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n"); |
a1740913 KW |
765 | pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT); |
766 | } | |
767 | } | |
768 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); | |
e1a2a51e | 769 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); |
a1740913 | 770 | |
1da177e4 LT |
771 | /* |
772 | * The AMD io apic can hang the box when an apic irq is masked. | |
773 | * We check all revs >= B0 (yet not in the pre production!) as the bug | |
774 | * is currently marked NoFix | |
775 | * | |
776 | * We have multiple reports of hangs with this chipset that went away with | |
236561e5 | 777 | * noapic specified. For the moment we assume it's the erratum. We may be wrong |
1da177e4 LT |
778 | * of course. However the advice is demonstrably good even if so.. |
779 | */ | |
15856ad5 | 780 | static void quirk_amd_ioapic(struct pci_dev *dev) |
1da177e4 | 781 | { |
44c10138 | 782 | if (dev->revision >= 0x02) { |
f0fda801 | 783 | dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n"); |
784 | dev_warn(&dev->dev, " : booting with the \"noapic\" option\n"); | |
1da177e4 LT |
785 | } |
786 | } | |
652c538e | 787 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic); |
1da177e4 | 788 | |
15856ad5 | 789 | static void quirk_ioapic_rmw(struct pci_dev *dev) |
1da177e4 LT |
790 | { |
791 | if (dev->devfn == 0 && dev->bus->number == 0) | |
792 | sis_apic_bug = 1; | |
793 | } | |
652c538e | 794 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw); |
1da177e4 LT |
795 | #endif /* CONFIG_X86_IO_APIC */ |
796 | ||
d556ad4b PO |
797 | /* |
798 | * Some settings of MMRBC can lead to data corruption so block changes. | |
799 | * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide | |
800 | */ | |
15856ad5 | 801 | static void quirk_amd_8131_mmrbc(struct pci_dev *dev) |
d556ad4b | 802 | { |
aa288d4d | 803 | if (dev->subordinate && dev->revision <= 0x12) { |
227f0647 RD |
804 | dev_info(&dev->dev, "AMD8131 rev %x detected; disabling PCI-X MMRBC\n", |
805 | dev->revision); | |
d556ad4b PO |
806 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC; |
807 | } | |
808 | } | |
809 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc); | |
1da177e4 | 810 | |
1da177e4 LT |
811 | /* |
812 | * FIXME: it is questionable that quirk_via_acpi | |
813 | * is needed. It shows up as an ISA bridge, and does not | |
814 | * support the PCI_INTERRUPT_LINE register at all. Therefore | |
815 | * it seems like setting the pci_dev's 'irq' to the | |
816 | * value of the ACPI SCI interrupt is only done for convenience. | |
817 | * -jgarzik | |
818 | */ | |
15856ad5 | 819 | static void quirk_via_acpi(struct pci_dev *d) |
1da177e4 LT |
820 | { |
821 | /* | |
822 | * VIA ACPI device: SCI IRQ line in PCI config byte 0x42 | |
823 | */ | |
824 | u8 irq; | |
825 | pci_read_config_byte(d, 0x42, &irq); | |
826 | irq &= 0xf; | |
827 | if (irq && (irq != 2)) | |
828 | d->irq = irq; | |
829 | } | |
652c538e AM |
830 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi); |
831 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi); | |
1da177e4 | 832 | |
09d6029f DD |
833 | |
834 | /* | |
1597cacb | 835 | * VIA bridges which have VLink |
09d6029f | 836 | */ |
1597cacb | 837 | |
c06bb5d4 JD |
838 | static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18; |
839 | ||
840 | static void quirk_via_bridge(struct pci_dev *dev) | |
841 | { | |
842 | /* See what bridge we have and find the device ranges */ | |
843 | switch (dev->device) { | |
844 | case PCI_DEVICE_ID_VIA_82C686: | |
cb7468ef JD |
845 | /* The VT82C686 is special, it attaches to PCI and can have |
846 | any device number. All its subdevices are functions of | |
847 | that single device. */ | |
848 | via_vlink_dev_lo = PCI_SLOT(dev->devfn); | |
849 | via_vlink_dev_hi = PCI_SLOT(dev->devfn); | |
c06bb5d4 JD |
850 | break; |
851 | case PCI_DEVICE_ID_VIA_8237: | |
852 | case PCI_DEVICE_ID_VIA_8237A: | |
853 | via_vlink_dev_lo = 15; | |
854 | break; | |
855 | case PCI_DEVICE_ID_VIA_8235: | |
856 | via_vlink_dev_lo = 16; | |
857 | break; | |
858 | case PCI_DEVICE_ID_VIA_8231: | |
859 | case PCI_DEVICE_ID_VIA_8233_0: | |
860 | case PCI_DEVICE_ID_VIA_8233A: | |
861 | case PCI_DEVICE_ID_VIA_8233C_0: | |
862 | via_vlink_dev_lo = 17; | |
863 | break; | |
864 | } | |
865 | } | |
866 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge); | |
867 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge); | |
868 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge); | |
869 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge); | |
870 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge); | |
871 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge); | |
872 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge); | |
873 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge); | |
09d6029f | 874 | |
1597cacb AC |
875 | /** |
876 | * quirk_via_vlink - VIA VLink IRQ number update | |
877 | * @dev: PCI device | |
878 | * | |
879 | * If the device we are dealing with is on a PIC IRQ we need to | |
880 | * ensure that the IRQ line register which usually is not relevant | |
881 | * for PCI cards, is actually written so that interrupts get sent | |
c06bb5d4 JD |
882 | * to the right place. |
883 | * We only do this on systems where a VIA south bridge was detected, | |
884 | * and only for VIA devices on the motherboard (see quirk_via_bridge | |
885 | * above). | |
1597cacb AC |
886 | */ |
887 | ||
888 | static void quirk_via_vlink(struct pci_dev *dev) | |
25be5e6c LB |
889 | { |
890 | u8 irq, new_irq; | |
891 | ||
c06bb5d4 JD |
892 | /* Check if we have VLink at all */ |
893 | if (via_vlink_dev_lo == -1) | |
09d6029f DD |
894 | return; |
895 | ||
896 | new_irq = dev->irq; | |
897 | ||
898 | /* Don't quirk interrupts outside the legacy IRQ range */ | |
899 | if (!new_irq || new_irq > 15) | |
900 | return; | |
901 | ||
1597cacb | 902 | /* Internal device ? */ |
c06bb5d4 JD |
903 | if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi || |
904 | PCI_SLOT(dev->devfn) < via_vlink_dev_lo) | |
1597cacb AC |
905 | return; |
906 | ||
907 | /* This is an internal VLink device on a PIC interrupt. The BIOS | |
908 | ought to have set this but may not have, so we redo it */ | |
909 | ||
25be5e6c LB |
910 | pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq); |
911 | if (new_irq != irq) { | |
f0fda801 | 912 | dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n", |
913 | irq, new_irq); | |
25be5e6c LB |
914 | udelay(15); /* unknown if delay really needed */ |
915 | pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq); | |
916 | } | |
917 | } | |
1597cacb | 918 | DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink); |
25be5e6c | 919 | |
1da177e4 LT |
920 | /* |
921 | * VIA VT82C598 has its device ID settable and many BIOSes | |
922 | * set it to the ID of VT82C597 for backward compatibility. | |
923 | * We need to switch it off to be able to recognize the real | |
924 | * type of the chip. | |
925 | */ | |
15856ad5 | 926 | static void quirk_vt82c598_id(struct pci_dev *dev) |
1da177e4 LT |
927 | { |
928 | pci_write_config_byte(dev, 0xfc, 0); | |
929 | pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device); | |
930 | } | |
652c538e | 931 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id); |
1da177e4 LT |
932 | |
933 | /* | |
934 | * CardBus controllers have a legacy base address that enables them | |
935 | * to respond as i82365 pcmcia controllers. We don't want them to | |
936 | * do this even if the Linux CardBus driver is not loaded, because | |
937 | * the Linux i82365 driver does not (and should not) handle CardBus. | |
938 | */ | |
1597cacb | 939 | static void quirk_cardbus_legacy(struct pci_dev *dev) |
1da177e4 | 940 | { |
1da177e4 LT |
941 | pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0); |
942 | } | |
ae9de56b YL |
943 | DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID, |
944 | PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy); | |
945 | DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, | |
946 | PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy); | |
1da177e4 LT |
947 | |
948 | /* | |
949 | * Following the PCI ordering rules is optional on the AMD762. I'm not | |
950 | * sure what the designers were smoking but let's not inhale... | |
951 | * | |
952 | * To be fair to AMD, it follows the spec by default, its BIOS people | |
953 | * who turn it off! | |
954 | */ | |
1597cacb | 955 | static void quirk_amd_ordering(struct pci_dev *dev) |
1da177e4 LT |
956 | { |
957 | u32 pcic; | |
958 | pci_read_config_dword(dev, 0x4C, &pcic); | |
3c78bc61 | 959 | if ((pcic & 6) != 6) { |
1da177e4 | 960 | pcic |= 6; |
f0fda801 | 961 | dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n"); |
1da177e4 LT |
962 | pci_write_config_dword(dev, 0x4C, pcic); |
963 | pci_read_config_dword(dev, 0x84, &pcic); | |
3c78bc61 | 964 | pcic |= (1 << 23); /* Required in this mode */ |
1da177e4 LT |
965 | pci_write_config_dword(dev, 0x84, pcic); |
966 | } | |
967 | } | |
652c538e | 968 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering); |
e1a2a51e | 969 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering); |
1da177e4 LT |
970 | |
971 | /* | |
972 | * DreamWorks provided workaround for Dunord I-3000 problem | |
973 | * | |
974 | * This card decodes and responds to addresses not apparently | |
975 | * assigned to it. We force a larger allocation to ensure that | |
976 | * nothing gets put too close to it. | |
977 | */ | |
15856ad5 | 978 | static void quirk_dunord(struct pci_dev *dev) |
1da177e4 | 979 | { |
3c78bc61 | 980 | struct resource *r = &dev->resource[1]; |
bd064f0a BH |
981 | |
982 | r->flags |= IORESOURCE_UNSET; | |
1da177e4 LT |
983 | r->start = 0; |
984 | r->end = 0xffffff; | |
985 | } | |
652c538e | 986 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord); |
1da177e4 LT |
987 | |
988 | /* | |
989 | * i82380FB mobile docking controller: its PCI-to-PCI bridge | |
990 | * is subtractive decoding (transparent), and does indicate this | |
991 | * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80 | |
992 | * instead of 0x01. | |
993 | */ | |
15856ad5 | 994 | static void quirk_transparent_bridge(struct pci_dev *dev) |
1da177e4 LT |
995 | { |
996 | dev->transparent = 1; | |
997 | } | |
652c538e AM |
998 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge); |
999 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge); | |
1da177e4 LT |
1000 | |
1001 | /* | |
1002 | * Common misconfiguration of the MediaGX/Geode PCI master that will | |
1003 | * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1 | |
631dd1a8 | 1004 | * datasheets found at http://www.national.com/analog for info on what |
1da177e4 LT |
1005 | * these bits do. <christer@weinigel.se> |
1006 | */ | |
1597cacb | 1007 | static void quirk_mediagx_master(struct pci_dev *dev) |
1da177e4 LT |
1008 | { |
1009 | u8 reg; | |
3c78bc61 | 1010 | |
1da177e4 LT |
1011 | pci_read_config_byte(dev, 0x41, ®); |
1012 | if (reg & 2) { | |
1013 | reg &= ~2; | |
227f0647 RD |
1014 | dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", |
1015 | reg); | |
3c78bc61 | 1016 | pci_write_config_byte(dev, 0x41, reg); |
1da177e4 LT |
1017 | } |
1018 | } | |
652c538e AM |
1019 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master); |
1020 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master); | |
1da177e4 | 1021 | |
1da177e4 LT |
1022 | /* |
1023 | * Ensure C0 rev restreaming is off. This is normally done by | |
1024 | * the BIOS but in the odd case it is not the results are corruption | |
1025 | * hence the presence of a Linux check | |
1026 | */ | |
1597cacb | 1027 | static void quirk_disable_pxb(struct pci_dev *pdev) |
1da177e4 LT |
1028 | { |
1029 | u16 config; | |
f7625980 | 1030 | |
44c10138 | 1031 | if (pdev->revision != 0x04) /* Only C0 requires this */ |
1da177e4 LT |
1032 | return; |
1033 | pci_read_config_word(pdev, 0x40, &config); | |
1034 | if (config & (1<<6)) { | |
1035 | config &= ~(1<<6); | |
1036 | pci_write_config_word(pdev, 0x40, config); | |
f0fda801 | 1037 | dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n"); |
1da177e4 LT |
1038 | } |
1039 | } | |
652c538e | 1040 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb); |
e1a2a51e | 1041 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb); |
1da177e4 | 1042 | |
25e742b2 | 1043 | static void quirk_amd_ide_mode(struct pci_dev *pdev) |
ab17443a | 1044 | { |
5deab536 | 1045 | /* set SBX00/Hudson-2 SATA in IDE mode to AHCI mode */ |
05a7d22b | 1046 | u8 tmp; |
ab17443a | 1047 | |
05a7d22b CC |
1048 | pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp); |
1049 | if (tmp == 0x01) { | |
ab17443a CH |
1050 | pci_read_config_byte(pdev, 0x40, &tmp); |
1051 | pci_write_config_byte(pdev, 0x40, tmp|1); | |
1052 | pci_write_config_byte(pdev, 0x9, 1); | |
1053 | pci_write_config_byte(pdev, 0xa, 6); | |
1054 | pci_write_config_byte(pdev, 0x40, tmp); | |
1055 | ||
c9f89475 | 1056 | pdev->class = PCI_CLASS_STORAGE_SATA_AHCI; |
05a7d22b | 1057 | dev_info(&pdev->dev, "set SATA to AHCI mode\n"); |
ab17443a CH |
1058 | } |
1059 | } | |
05a7d22b | 1060 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode); |
e1a2a51e | 1061 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode); |
05a7d22b | 1062 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode); |
e1a2a51e | 1063 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode); |
5deab536 SH |
1064 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode); |
1065 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode); | |
fafe5c3d SH |
1066 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode); |
1067 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode); | |
ab17443a | 1068 | |
1da177e4 LT |
1069 | /* |
1070 | * Serverworks CSB5 IDE does not fully support native mode | |
1071 | */ | |
15856ad5 | 1072 | static void quirk_svwks_csb5ide(struct pci_dev *pdev) |
1da177e4 LT |
1073 | { |
1074 | u8 prog; | |
1075 | pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog); | |
1076 | if (prog & 5) { | |
1077 | prog &= ~5; | |
1078 | pdev->class &= ~5; | |
1079 | pci_write_config_byte(pdev, PCI_CLASS_PROG, prog); | |
368c73d4 | 1080 | /* PCI layer will sort out resources */ |
1da177e4 LT |
1081 | } |
1082 | } | |
652c538e | 1083 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide); |
1da177e4 LT |
1084 | |
1085 | /* | |
1086 | * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same | |
1087 | */ | |
15856ad5 | 1088 | static void quirk_ide_samemode(struct pci_dev *pdev) |
1da177e4 LT |
1089 | { |
1090 | u8 prog; | |
1091 | ||
1092 | pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog); | |
1093 | ||
1094 | if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) { | |
f0fda801 | 1095 | dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n"); |
1da177e4 LT |
1096 | prog &= ~5; |
1097 | pdev->class &= ~5; | |
1098 | pci_write_config_byte(pdev, PCI_CLASS_PROG, prog); | |
1da177e4 LT |
1099 | } |
1100 | } | |
368c73d4 | 1101 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode); |
1da177e4 | 1102 | |
979b1791 AC |
1103 | /* |
1104 | * Some ATA devices break if put into D3 | |
1105 | */ | |
1106 | ||
15856ad5 | 1107 | static void quirk_no_ata_d3(struct pci_dev *pdev) |
979b1791 | 1108 | { |
faa738bb | 1109 | pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3; |
979b1791 | 1110 | } |
faa738bb YL |
1111 | /* Quirk the legacy ATA devices only. The AHCI ones are ok */ |
1112 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, | |
1113 | PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3); | |
1114 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, | |
1115 | PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3); | |
7a661c6f | 1116 | /* ALi loses some register settings that we cannot then restore */ |
faa738bb YL |
1117 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, |
1118 | PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3); | |
7a661c6f AC |
1119 | /* VIA comes back fine but we need to keep it alive or ACPI GTM failures |
1120 | occur when mode detecting */ | |
faa738bb YL |
1121 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID, |
1122 | PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3); | |
979b1791 | 1123 | |
1da177e4 LT |
1124 | /* This was originally an Alpha specific thing, but it really fits here. |
1125 | * The i82375 PCI/EISA bridge appears as non-classified. Fix that. | |
1126 | */ | |
15856ad5 | 1127 | static void quirk_eisa_bridge(struct pci_dev *dev) |
1da177e4 LT |
1128 | { |
1129 | dev->class = PCI_CLASS_BRIDGE_EISA << 8; | |
1130 | } | |
652c538e | 1131 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge); |
1da177e4 | 1132 | |
7daa0c4f | 1133 | |
1da177e4 LT |
1134 | /* |
1135 | * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge | |
1136 | * is not activated. The myth is that Asus said that they do not want the | |
1137 | * users to be irritated by just another PCI Device in the Win98 device | |
f7625980 | 1138 | * manager. (see the file prog/hotplug/README.p4b in the lm_sensors |
1da177e4 LT |
1139 | * package 2.7.0 for details) |
1140 | * | |
f7625980 BH |
1141 | * The SMBus PCI Device can be activated by setting a bit in the ICH LPC |
1142 | * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it | |
d7698edc | 1143 | * becomes necessary to do this tweak in two steps -- the chosen trigger |
1144 | * is either the Host bridge (preferred) or on-board VGA controller. | |
9208ee82 JD |
1145 | * |
1146 | * Note that we used to unhide the SMBus that way on Toshiba laptops | |
1147 | * (Satellite A40 and Tecra M2) but then found that the thermal management | |
1148 | * was done by SMM code, which could cause unsynchronized concurrent | |
1149 | * accesses to the SMBus registers, with potentially bad effects. Thus you | |
1150 | * should be very careful when adding new entries: if SMM is accessing the | |
1151 | * Intel SMBus, this is a very good reason to leave it hidden. | |
a99acc83 JD |
1152 | * |
1153 | * Likewise, many recent laptops use ACPI for thermal management. If the | |
1154 | * ACPI DSDT code accesses the SMBus, then Linux should not access it | |
1155 | * natively, and keeping the SMBus hidden is the right thing to do. If you | |
1156 | * are about to add an entry in the table below, please first disassemble | |
1157 | * the DSDT and double-check that there is no code accessing the SMBus. | |
1da177e4 | 1158 | */ |
9d24a81e | 1159 | static int asus_hides_smbus; |
1da177e4 | 1160 | |
15856ad5 | 1161 | static void asus_hides_smbus_hostbridge(struct pci_dev *dev) |
1da177e4 LT |
1162 | { |
1163 | if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) { | |
1164 | if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB) | |
3c78bc61 | 1165 | switch (dev->subsystem_device) { |
a00db371 | 1166 | case 0x8025: /* P4B-LX */ |
1da177e4 LT |
1167 | case 0x8070: /* P4B */ |
1168 | case 0x8088: /* P4B533 */ | |
1169 | case 0x1626: /* L3C notebook */ | |
1170 | asus_hides_smbus = 1; | |
1171 | } | |
2f2d39d2 | 1172 | else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) |
3c78bc61 | 1173 | switch (dev->subsystem_device) { |
1da177e4 LT |
1174 | case 0x80b1: /* P4GE-V */ |
1175 | case 0x80b2: /* P4PE */ | |
1176 | case 0x8093: /* P4B533-V */ | |
1177 | asus_hides_smbus = 1; | |
1178 | } | |
2f2d39d2 | 1179 | else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB) |
3c78bc61 | 1180 | switch (dev->subsystem_device) { |
1da177e4 LT |
1181 | case 0x8030: /* P4T533 */ |
1182 | asus_hides_smbus = 1; | |
1183 | } | |
2f2d39d2 | 1184 | else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0) |
1da177e4 LT |
1185 | switch (dev->subsystem_device) { |
1186 | case 0x8070: /* P4G8X Deluxe */ | |
1187 | asus_hides_smbus = 1; | |
1188 | } | |
2f2d39d2 | 1189 | else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH) |
321311af JD |
1190 | switch (dev->subsystem_device) { |
1191 | case 0x80c9: /* PU-DLS */ | |
1192 | asus_hides_smbus = 1; | |
1193 | } | |
2f2d39d2 | 1194 | else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB) |
1da177e4 LT |
1195 | switch (dev->subsystem_device) { |
1196 | case 0x1751: /* M2N notebook */ | |
1197 | case 0x1821: /* M5N notebook */ | |
4096ed0f | 1198 | case 0x1897: /* A6L notebook */ |
1da177e4 LT |
1199 | asus_hides_smbus = 1; |
1200 | } | |
2f2d39d2 | 1201 | else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) |
1da177e4 LT |
1202 | switch (dev->subsystem_device) { |
1203 | case 0x184b: /* W1N notebook */ | |
1204 | case 0x186a: /* M6Ne notebook */ | |
1205 | asus_hides_smbus = 1; | |
1206 | } | |
2f2d39d2 | 1207 | else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) |
2e45785c JD |
1208 | switch (dev->subsystem_device) { |
1209 | case 0x80f2: /* P4P800-X */ | |
1210 | asus_hides_smbus = 1; | |
1211 | } | |
2f2d39d2 | 1212 | else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB) |
acc06632 M |
1213 | switch (dev->subsystem_device) { |
1214 | case 0x1882: /* M6V notebook */ | |
2d1e1c75 | 1215 | case 0x1977: /* A6VA notebook */ |
acc06632 M |
1216 | asus_hides_smbus = 1; |
1217 | } | |
1da177e4 LT |
1218 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) { |
1219 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
3c78bc61 | 1220 | switch (dev->subsystem_device) { |
1da177e4 LT |
1221 | case 0x088C: /* HP Compaq nc8000 */ |
1222 | case 0x0890: /* HP Compaq nc6000 */ | |
1223 | asus_hides_smbus = 1; | |
1224 | } | |
2f2d39d2 | 1225 | else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) |
1da177e4 LT |
1226 | switch (dev->subsystem_device) { |
1227 | case 0x12bc: /* HP D330L */ | |
e3b1bd57 | 1228 | case 0x12bd: /* HP D530 */ |
74c57428 | 1229 | case 0x006a: /* HP Compaq nx9500 */ |
1da177e4 LT |
1230 | asus_hides_smbus = 1; |
1231 | } | |
677cc644 JD |
1232 | else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB) |
1233 | switch (dev->subsystem_device) { | |
1234 | case 0x12bf: /* HP xw4100 */ | |
1235 | asus_hides_smbus = 1; | |
1236 | } | |
3c78bc61 RD |
1237 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) { |
1238 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
1239 | switch (dev->subsystem_device) { | |
1240 | case 0xC00C: /* Samsung P35 notebook */ | |
1241 | asus_hides_smbus = 1; | |
1242 | } | |
c87f883e RIZ |
1243 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) { |
1244 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) | |
3c78bc61 | 1245 | switch (dev->subsystem_device) { |
c87f883e RIZ |
1246 | case 0x0058: /* Compaq Evo N620c */ |
1247 | asus_hides_smbus = 1; | |
1248 | } | |
d7698edc | 1249 | else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3) |
3c78bc61 | 1250 | switch (dev->subsystem_device) { |
d7698edc | 1251 | case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */ |
1252 | /* Motherboard doesn't have Host bridge | |
1253 | * subvendor/subdevice IDs, therefore checking | |
1254 | * its on-board VGA controller */ | |
1255 | asus_hides_smbus = 1; | |
1256 | } | |
8293b0f6 | 1257 | else if (dev->device == PCI_DEVICE_ID_INTEL_82801DB_2) |
3c78bc61 | 1258 | switch (dev->subsystem_device) { |
10260d9a JD |
1259 | case 0x00b8: /* Compaq Evo D510 CMT */ |
1260 | case 0x00b9: /* Compaq Evo D510 SFF */ | |
6b5096e4 | 1261 | case 0x00ba: /* Compaq Evo D510 USDT */ |
8293b0f6 DS |
1262 | /* Motherboard doesn't have Host bridge |
1263 | * subvendor/subdevice IDs and on-board VGA | |
1264 | * controller is disabled if an AGP card is | |
1265 | * inserted, therefore checking USB UHCI | |
1266 | * Controller #1 */ | |
10260d9a JD |
1267 | asus_hides_smbus = 1; |
1268 | } | |
27e46859 KH |
1269 | else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC) |
1270 | switch (dev->subsystem_device) { | |
1271 | case 0x001A: /* Compaq Deskpro EN SSF P667 815E */ | |
1272 | /* Motherboard doesn't have host bridge | |
1273 | * subvendor/subdevice IDs, therefore checking | |
1274 | * its on-board VGA controller */ | |
1275 | asus_hides_smbus = 1; | |
1276 | } | |
1da177e4 LT |
1277 | } |
1278 | } | |
652c538e AM |
1279 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge); |
1280 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge); | |
1281 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge); | |
1282 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge); | |
677cc644 | 1283 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge); |
652c538e AM |
1284 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge); |
1285 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge); | |
1286 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge); | |
1287 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge); | |
1288 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge); | |
1289 | ||
1290 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge); | |
8293b0f6 | 1291 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_2, asus_hides_smbus_hostbridge); |
27e46859 | 1292 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge); |
d7698edc | 1293 | |
1597cacb | 1294 | static void asus_hides_smbus_lpc(struct pci_dev *dev) |
1da177e4 LT |
1295 | { |
1296 | u16 val; | |
f7625980 | 1297 | |
1da177e4 LT |
1298 | if (likely(!asus_hides_smbus)) |
1299 | return; | |
1300 | ||
1301 | pci_read_config_word(dev, 0xF2, &val); | |
1302 | if (val & 0x8) { | |
1303 | pci_write_config_word(dev, 0xF2, val & (~0x8)); | |
1304 | pci_read_config_word(dev, 0xF2, &val); | |
1305 | if (val & 0x8) | |
227f0647 RD |
1306 | dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", |
1307 | val); | |
1da177e4 | 1308 | else |
f0fda801 | 1309 | dev_info(&dev->dev, "Enabled i801 SMBus device\n"); |
1da177e4 LT |
1310 | } |
1311 | } | |
652c538e AM |
1312 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc); |
1313 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc); | |
1314 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc); | |
1315 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc); | |
1316 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc); | |
1317 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc); | |
1318 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc); | |
e1a2a51e RW |
1319 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc); |
1320 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc); | |
1321 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc); | |
1322 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc); | |
1323 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc); | |
1324 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc); | |
1325 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc); | |
1597cacb | 1326 | |
e1a2a51e RW |
1327 | /* It appears we just have one such device. If not, we have a warning */ |
1328 | static void __iomem *asus_rcba_base; | |
1329 | static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev) | |
acc06632 | 1330 | { |
e1a2a51e | 1331 | u32 rcba; |
acc06632 M |
1332 | |
1333 | if (likely(!asus_hides_smbus)) | |
1334 | return; | |
e1a2a51e RW |
1335 | WARN_ON(asus_rcba_base); |
1336 | ||
acc06632 | 1337 | pci_read_config_dword(dev, 0xF0, &rcba); |
e1a2a51e RW |
1338 | /* use bits 31:14, 16 kB aligned */ |
1339 | asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); | |
1340 | if (asus_rcba_base == NULL) | |
1341 | return; | |
1342 | } | |
1343 | ||
1344 | static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev) | |
1345 | { | |
1346 | u32 val; | |
1347 | ||
1348 | if (likely(!asus_hides_smbus || !asus_rcba_base)) | |
1349 | return; | |
1350 | /* read the Function Disable register, dword mode only */ | |
1351 | val = readl(asus_rcba_base + 0x3418); | |
1352 | writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */ | |
1353 | } | |
1354 | ||
1355 | static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev) | |
1356 | { | |
1357 | if (likely(!asus_hides_smbus || !asus_rcba_base)) | |
1358 | return; | |
1359 | iounmap(asus_rcba_base); | |
1360 | asus_rcba_base = NULL; | |
f0fda801 | 1361 | dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n"); |
acc06632 | 1362 | } |
e1a2a51e RW |
1363 | |
1364 | static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev) | |
1365 | { | |
1366 | asus_hides_smbus_lpc_ich6_suspend(dev); | |
1367 | asus_hides_smbus_lpc_ich6_resume_early(dev); | |
1368 | asus_hides_smbus_lpc_ich6_resume(dev); | |
1369 | } | |
652c538e | 1370 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6); |
e1a2a51e RW |
1371 | DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend); |
1372 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume); | |
1373 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early); | |
ce007ea5 | 1374 | |
1da177e4 LT |
1375 | /* |
1376 | * SiS 96x south bridge: BIOS typically hides SMBus device... | |
1377 | */ | |
1597cacb | 1378 | static void quirk_sis_96x_smbus(struct pci_dev *dev) |
1da177e4 LT |
1379 | { |
1380 | u8 val = 0; | |
1da177e4 | 1381 | pci_read_config_byte(dev, 0x77, &val); |
2f5c33b3 | 1382 | if (val & 0x10) { |
f0fda801 | 1383 | dev_info(&dev->dev, "Enabling SiS 96x SMBus\n"); |
2f5c33b3 MH |
1384 | pci_write_config_byte(dev, 0x77, val & ~0x10); |
1385 | } | |
1da177e4 | 1386 | } |
652c538e AM |
1387 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus); |
1388 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus); | |
1389 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus); | |
1390 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus); | |
e1a2a51e RW |
1391 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus); |
1392 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus); | |
1393 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus); | |
1394 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus); | |
1da177e4 | 1395 | |
1da177e4 LT |
1396 | /* |
1397 | * ... This is further complicated by the fact that some SiS96x south | |
1398 | * bridges pretend to be 85C503/5513 instead. In that case see if we | |
1399 | * spotted a compatible north bridge to make sure. | |
1400 | * (pci_find_device doesn't work yet) | |
1401 | * | |
1402 | * We can also enable the sis96x bit in the discovery register.. | |
1403 | */ | |
1da177e4 LT |
1404 | #define SIS_DETECT_REGISTER 0x40 |
1405 | ||
1597cacb | 1406 | static void quirk_sis_503(struct pci_dev *dev) |
1da177e4 LT |
1407 | { |
1408 | u8 reg; | |
1409 | u16 devid; | |
1410 | ||
1411 | pci_read_config_byte(dev, SIS_DETECT_REGISTER, ®); | |
1412 | pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6)); | |
1413 | pci_read_config_word(dev, PCI_DEVICE_ID, &devid); | |
1414 | if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) { | |
1415 | pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg); | |
1416 | return; | |
1417 | } | |
1418 | ||
1da177e4 | 1419 | /* |
2f5c33b3 MH |
1420 | * Ok, it now shows up as a 96x.. run the 96x quirk by |
1421 | * hand in case it has already been processed. | |
1422 | * (depends on link order, which is apparently not guaranteed) | |
1da177e4 LT |
1423 | */ |
1424 | dev->device = devid; | |
2f5c33b3 | 1425 | quirk_sis_96x_smbus(dev); |
1da177e4 | 1426 | } |
652c538e | 1427 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503); |
e1a2a51e | 1428 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503); |
1da177e4 | 1429 | |
1da177e4 | 1430 | |
e5548e96 BJD |
1431 | /* |
1432 | * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller | |
1433 | * and MC97 modem controller are disabled when a second PCI soundcard is | |
1434 | * present. This patch, tweaking the VT8237 ISA bridge, enables them. | |
1435 | * -- bjd | |
1436 | */ | |
1597cacb | 1437 | static void asus_hides_ac97_lpc(struct pci_dev *dev) |
e5548e96 BJD |
1438 | { |
1439 | u8 val; | |
1440 | int asus_hides_ac97 = 0; | |
1441 | ||
1442 | if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) { | |
1443 | if (dev->device == PCI_DEVICE_ID_VIA_8237) | |
1444 | asus_hides_ac97 = 1; | |
1445 | } | |
1446 | ||
1447 | if (!asus_hides_ac97) | |
1448 | return; | |
1449 | ||
1450 | pci_read_config_byte(dev, 0x50, &val); | |
1451 | if (val & 0xc0) { | |
1452 | pci_write_config_byte(dev, 0x50, val & (~0xc0)); | |
1453 | pci_read_config_byte(dev, 0x50, &val); | |
1454 | if (val & 0xc0) | |
227f0647 RD |
1455 | dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", |
1456 | val); | |
e5548e96 | 1457 | else |
f0fda801 | 1458 | dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n"); |
e5548e96 BJD |
1459 | } |
1460 | } | |
652c538e | 1461 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc); |
e1a2a51e | 1462 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc); |
1597cacb | 1463 | |
77967052 | 1464 | #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE) |
15e0c694 AC |
1465 | |
1466 | /* | |
1467 | * If we are using libata we can drive this chip properly but must | |
1468 | * do this early on to make the additional device appear during | |
1469 | * the PCI scanning. | |
1470 | */ | |
5ee2ae7f | 1471 | static void quirk_jmicron_ata(struct pci_dev *pdev) |
15e0c694 | 1472 | { |
e34bb370 | 1473 | u32 conf1, conf5, class; |
15e0c694 AC |
1474 | u8 hdr; |
1475 | ||
1476 | /* Only poke fn 0 */ | |
1477 | if (PCI_FUNC(pdev->devfn)) | |
1478 | return; | |
1479 | ||
5ee2ae7f TH |
1480 | pci_read_config_dword(pdev, 0x40, &conf1); |
1481 | pci_read_config_dword(pdev, 0x80, &conf5); | |
15e0c694 | 1482 | |
5ee2ae7f TH |
1483 | conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */ |
1484 | conf5 &= ~(1 << 24); /* Clear bit 24 */ | |
1485 | ||
1486 | switch (pdev->device) { | |
4daedcfe TH |
1487 | case PCI_DEVICE_ID_JMICRON_JMB360: /* SATA single port */ |
1488 | case PCI_DEVICE_ID_JMICRON_JMB362: /* SATA dual ports */ | |
5b6ae5ba | 1489 | case PCI_DEVICE_ID_JMICRON_JMB364: /* SATA dual ports */ |
5ee2ae7f TH |
1490 | /* The controller should be in single function ahci mode */ |
1491 | conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */ | |
1492 | break; | |
1493 | ||
1494 | case PCI_DEVICE_ID_JMICRON_JMB365: | |
1495 | case PCI_DEVICE_ID_JMICRON_JMB366: | |
1496 | /* Redirect IDE second PATA port to the right spot */ | |
1497 | conf5 |= (1 << 24); | |
1498 | /* Fall through */ | |
1499 | case PCI_DEVICE_ID_JMICRON_JMB361: | |
1500 | case PCI_DEVICE_ID_JMICRON_JMB363: | |
5b6ae5ba | 1501 | case PCI_DEVICE_ID_JMICRON_JMB369: |
5ee2ae7f TH |
1502 | /* Enable dual function mode, AHCI on fn 0, IDE fn1 */ |
1503 | /* Set the class codes correctly and then direct IDE 0 */ | |
3a9e3a51 | 1504 | conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */ |
5ee2ae7f TH |
1505 | break; |
1506 | ||
1507 | case PCI_DEVICE_ID_JMICRON_JMB368: | |
1508 | /* The controller should be in single function IDE mode */ | |
1509 | conf1 |= 0x00C00000; /* Set 22, 23 */ | |
1510 | break; | |
15e0c694 | 1511 | } |
5ee2ae7f TH |
1512 | |
1513 | pci_write_config_dword(pdev, 0x40, conf1); | |
1514 | pci_write_config_dword(pdev, 0x80, conf5); | |
1515 | ||
1516 | /* Update pdev accordingly */ | |
1517 | pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr); | |
1518 | pdev->hdr_type = hdr & 0x7f; | |
1519 | pdev->multifunction = !!(hdr & 0x80); | |
e34bb370 TH |
1520 | |
1521 | pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class); | |
1522 | pdev->class = class >> 8; | |
15e0c694 | 1523 | } |
5ee2ae7f TH |
1524 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata); |
1525 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata); | |
4daedcfe | 1526 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata); |
5ee2ae7f | 1527 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata); |
5b6ae5ba | 1528 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata); |
5ee2ae7f TH |
1529 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata); |
1530 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata); | |
1531 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata); | |
5b6ae5ba | 1532 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata); |
e1a2a51e RW |
1533 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata); |
1534 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata); | |
4daedcfe | 1535 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata); |
e1a2a51e | 1536 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata); |
5b6ae5ba | 1537 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata); |
e1a2a51e RW |
1538 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata); |
1539 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata); | |
1540 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata); | |
5b6ae5ba | 1541 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata); |
15e0c694 AC |
1542 | |
1543 | #endif | |
1544 | ||
1da177e4 | 1545 | #ifdef CONFIG_X86_IO_APIC |
15856ad5 | 1546 | static void quirk_alder_ioapic(struct pci_dev *pdev) |
1da177e4 LT |
1547 | { |
1548 | int i; | |
1549 | ||
1550 | if ((pdev->class >> 8) != 0xff00) | |
1551 | return; | |
1552 | ||
1553 | /* the first BAR is the location of the IO APIC...we must | |
1554 | * not touch this (and it's already covered by the fixmap), so | |
1555 | * forcibly insert it into the resource tree */ | |
1556 | if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0)) | |
1557 | insert_resource(&iomem_resource, &pdev->resource[0]); | |
1558 | ||
1559 | /* The next five BARs all seem to be rubbish, so just clean | |
1560 | * them out */ | |
3c78bc61 | 1561 | for (i = 1; i < 6; i++) |
1da177e4 | 1562 | memset(&pdev->resource[i], 0, sizeof(pdev->resource[i])); |
1da177e4 | 1563 | } |
652c538e | 1564 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic); |
1da177e4 LT |
1565 | #endif |
1566 | ||
15856ad5 | 1567 | static void quirk_pcie_mch(struct pci_dev *pdev) |
1da177e4 | 1568 | { |
0ba379ec EB |
1569 | pci_msi_off(pdev); |
1570 | pdev->no_msi = 1; | |
1da177e4 | 1571 | } |
652c538e AM |
1572 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch); |
1573 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch); | |
1574 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch); | |
1da177e4 | 1575 | |
4602b88d KA |
1576 | |
1577 | /* | |
1578 | * It's possible for the MSI to get corrupted if shpc and acpi | |
1579 | * are used together on certain PXH-based systems. | |
1580 | */ | |
15856ad5 | 1581 | static void quirk_pcie_pxh(struct pci_dev *dev) |
4602b88d | 1582 | { |
f5f2b131 | 1583 | pci_msi_off(dev); |
4602b88d | 1584 | dev->no_msi = 1; |
f0fda801 | 1585 | dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n"); |
4602b88d KA |
1586 | } |
1587 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh); | |
1588 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh); | |
1589 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh); | |
1590 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh); | |
1591 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh); | |
1592 | ||
ffadcc2f KCA |
1593 | /* |
1594 | * Some Intel PCI Express chipsets have trouble with downstream | |
1595 | * device power management. | |
1596 | */ | |
3c78bc61 | 1597 | static void quirk_intel_pcie_pm(struct pci_dev *dev) |
ffadcc2f KCA |
1598 | { |
1599 | pci_pm_d3_delay = 120; | |
1600 | dev->no_d1d2 = 1; | |
1601 | } | |
1602 | ||
1603 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm); | |
1604 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm); | |
1605 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm); | |
1606 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm); | |
1607 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm); | |
1608 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm); | |
1609 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm); | |
1610 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm); | |
1611 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm); | |
1612 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm); | |
1613 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm); | |
1614 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm); | |
1615 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm); | |
1616 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm); | |
1617 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm); | |
1618 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm); | |
1619 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm); | |
1620 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm); | |
1621 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm); | |
1622 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm); | |
1623 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm); | |
4602b88d | 1624 | |
426b3b8d | 1625 | #ifdef CONFIG_X86_IO_APIC |
e1d3a908 SA |
1626 | /* |
1627 | * Boot interrupts on some chipsets cannot be turned off. For these chipsets, | |
1628 | * remap the original interrupt in the linux kernel to the boot interrupt, so | |
1629 | * that a PCI device's interrupt handler is installed on the boot interrupt | |
1630 | * line instead. | |
1631 | */ | |
1632 | static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev) | |
1633 | { | |
41b9eb26 | 1634 | if (noioapicquirk || noioapicreroute) |
e1d3a908 SA |
1635 | return; |
1636 | ||
1637 | dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT; | |
fdcdaf6c BH |
1638 | dev_info(&dev->dev, "rerouting interrupts for [%04x:%04x]\n", |
1639 | dev->vendor, dev->device); | |
e1d3a908 | 1640 | } |
88d1dce3 OD |
1641 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel); |
1642 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel); | |
1643 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel); | |
1644 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel); | |
1645 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel); | |
1646 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel); | |
1647 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel); | |
1648 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel); | |
1649 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel); | |
1650 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel); | |
1651 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel); | |
1652 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel); | |
1653 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel); | |
1654 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel); | |
1655 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel); | |
1656 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel); | |
e1d3a908 | 1657 | |
426b3b8d SA |
1658 | /* |
1659 | * On some chipsets we can disable the generation of legacy INTx boot | |
1660 | * interrupts. | |
1661 | */ | |
1662 | ||
1663 | /* | |
1664 | * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no | |
1665 | * 300641-004US, section 5.7.3. | |
1666 | */ | |
1667 | #define INTEL_6300_IOAPIC_ABAR 0x40 | |
1668 | #define INTEL_6300_DISABLE_BOOT_IRQ (1<<14) | |
1669 | ||
1670 | static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev) | |
1671 | { | |
1672 | u16 pci_config_word; | |
1673 | ||
1674 | if (noioapicquirk) | |
1675 | return; | |
1676 | ||
1677 | pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word); | |
1678 | pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ; | |
1679 | pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word); | |
1680 | ||
fdcdaf6c BH |
1681 | dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", |
1682 | dev->vendor, dev->device); | |
426b3b8d | 1683 | } |
f7625980 BH |
1684 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt); |
1685 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt); | |
77251188 OD |
1686 | |
1687 | /* | |
1688 | * disable boot interrupts on HT-1000 | |
1689 | */ | |
1690 | #define BC_HT1000_FEATURE_REG 0x64 | |
1691 | #define BC_HT1000_PIC_REGS_ENABLE (1<<0) | |
1692 | #define BC_HT1000_MAP_IDX 0xC00 | |
1693 | #define BC_HT1000_MAP_DATA 0xC01 | |
1694 | ||
1695 | static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev) | |
1696 | { | |
1697 | u32 pci_config_dword; | |
1698 | u8 irq; | |
1699 | ||
1700 | if (noioapicquirk) | |
1701 | return; | |
1702 | ||
1703 | pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword); | |
1704 | pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword | | |
1705 | BC_HT1000_PIC_REGS_ENABLE); | |
1706 | ||
1707 | for (irq = 0x10; irq < 0x10 + 32; irq++) { | |
1708 | outb(irq, BC_HT1000_MAP_IDX); | |
1709 | outb(0x00, BC_HT1000_MAP_DATA); | |
1710 | } | |
1711 | ||
1712 | pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword); | |
1713 | ||
fdcdaf6c BH |
1714 | dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", |
1715 | dev->vendor, dev->device); | |
77251188 | 1716 | } |
f7625980 BH |
1717 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt); |
1718 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt); | |
542622da OD |
1719 | |
1720 | /* | |
1721 | * disable boot interrupts on AMD and ATI chipsets | |
1722 | */ | |
1723 | /* | |
1724 | * NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131 | |
1725 | * rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode | |
1726 | * (due to an erratum). | |
1727 | */ | |
1728 | #define AMD_813X_MISC 0x40 | |
1729 | #define AMD_813X_NOIOAMODE (1<<0) | |
4fd8bdc5 | 1730 | #define AMD_813X_REV_B1 0x12 |
bbe19443 | 1731 | #define AMD_813X_REV_B2 0x13 |
542622da OD |
1732 | |
1733 | static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev) | |
1734 | { | |
1735 | u32 pci_config_dword; | |
1736 | ||
1737 | if (noioapicquirk) | |
1738 | return; | |
4fd8bdc5 SA |
1739 | if ((dev->revision == AMD_813X_REV_B1) || |
1740 | (dev->revision == AMD_813X_REV_B2)) | |
bbe19443 | 1741 | return; |
542622da OD |
1742 | |
1743 | pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword); | |
1744 | pci_config_dword &= ~AMD_813X_NOIOAMODE; | |
1745 | pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword); | |
1746 | ||
fdcdaf6c BH |
1747 | dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", |
1748 | dev->vendor, dev->device); | |
542622da | 1749 | } |
4fd8bdc5 SA |
1750 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt); |
1751 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt); | |
1752 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt); | |
1753 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt); | |
542622da OD |
1754 | |
1755 | #define AMD_8111_PCI_IRQ_ROUTING 0x56 | |
1756 | ||
1757 | static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev) | |
1758 | { | |
1759 | u16 pci_config_word; | |
1760 | ||
1761 | if (noioapicquirk) | |
1762 | return; | |
1763 | ||
1764 | pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word); | |
1765 | if (!pci_config_word) { | |
227f0647 RD |
1766 | dev_info(&dev->dev, "boot interrupts on device [%04x:%04x] already disabled\n", |
1767 | dev->vendor, dev->device); | |
542622da OD |
1768 | return; |
1769 | } | |
1770 | pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0); | |
fdcdaf6c BH |
1771 | dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", |
1772 | dev->vendor, dev->device); | |
542622da | 1773 | } |
f7625980 BH |
1774 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt); |
1775 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt); | |
426b3b8d SA |
1776 | #endif /* CONFIG_X86_IO_APIC */ |
1777 | ||
33dced2e SS |
1778 | /* |
1779 | * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size | |
1780 | * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes. | |
1781 | * Re-allocate the region if needed... | |
1782 | */ | |
15856ad5 | 1783 | static void quirk_tc86c001_ide(struct pci_dev *dev) |
33dced2e SS |
1784 | { |
1785 | struct resource *r = &dev->resource[0]; | |
1786 | ||
1787 | if (r->start & 0x8) { | |
bd064f0a | 1788 | r->flags |= IORESOURCE_UNSET; |
33dced2e SS |
1789 | r->start = 0; |
1790 | r->end = 0xf; | |
1791 | } | |
1792 | } | |
1793 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2, | |
1794 | PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE, | |
1795 | quirk_tc86c001_ide); | |
1796 | ||
21c5fd97 IA |
1797 | /* |
1798 | * PLX PCI 9050 PCI Target bridge controller has an errata that prevents the | |
1799 | * local configuration registers accessible via BAR0 (memory) or BAR1 (i/o) | |
1800 | * being read correctly if bit 7 of the base address is set. | |
1801 | * The BAR0 or BAR1 region may be disabled (size 0) or enabled (size 128). | |
1802 | * Re-allocate the regions to a 256-byte boundary if necessary. | |
1803 | */ | |
193c0d68 | 1804 | static void quirk_plx_pci9050(struct pci_dev *dev) |
21c5fd97 IA |
1805 | { |
1806 | unsigned int bar; | |
1807 | ||
1808 | /* Fixed in revision 2 (PCI 9052). */ | |
1809 | if (dev->revision >= 2) | |
1810 | return; | |
1811 | for (bar = 0; bar <= 1; bar++) | |
1812 | if (pci_resource_len(dev, bar) == 0x80 && | |
1813 | (pci_resource_start(dev, bar) & 0x80)) { | |
1814 | struct resource *r = &dev->resource[bar]; | |
227f0647 | 1815 | dev_info(&dev->dev, "Re-allocating PLX PCI 9050 BAR %u to length 256 to avoid bit 7 bug\n", |
21c5fd97 | 1816 | bar); |
bd064f0a | 1817 | r->flags |= IORESOURCE_UNSET; |
21c5fd97 IA |
1818 | r->start = 0; |
1819 | r->end = 0xff; | |
1820 | } | |
1821 | } | |
1822 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050, | |
1823 | quirk_plx_pci9050); | |
2794bb28 IA |
1824 | /* |
1825 | * The following Meilhaus (vendor ID 0x1402) device IDs (amongst others) | |
1826 | * may be using the PLX PCI 9050: 0x0630, 0x0940, 0x0950, 0x0960, 0x100b, | |
1827 | * 0x1400, 0x140a, 0x140b, 0x14e0, 0x14ea, 0x14eb, 0x1604, 0x1608, 0x160c, | |
1828 | * 0x168f, 0x2000, 0x2600, 0x3000, 0x810a, 0x810b. | |
1829 | * | |
1830 | * Currently, device IDs 0x2000 and 0x2600 are used by the Comedi "me_daq" | |
1831 | * driver. | |
1832 | */ | |
1833 | DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2000, quirk_plx_pci9050); | |
1834 | DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2600, quirk_plx_pci9050); | |
21c5fd97 | 1835 | |
15856ad5 | 1836 | static void quirk_netmos(struct pci_dev *dev) |
1da177e4 LT |
1837 | { |
1838 | unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4; | |
1839 | unsigned int num_serial = dev->subsystem_device & 0xf; | |
1840 | ||
1841 | /* | |
1842 | * These Netmos parts are multiport serial devices with optional | |
1843 | * parallel ports. Even when parallel ports are present, they | |
1844 | * are identified as class SERIAL, which means the serial driver | |
1845 | * will claim them. To prevent this, mark them as class OTHER. | |
1846 | * These combo devices should be claimed by parport_serial. | |
1847 | * | |
1848 | * The subdevice ID is of the form 0x00PS, where <P> is the number | |
1849 | * of parallel ports and <S> is the number of serial ports. | |
1850 | */ | |
1851 | switch (dev->device) { | |
4c9c1686 JS |
1852 | case PCI_DEVICE_ID_NETMOS_9835: |
1853 | /* Well, this rule doesn't hold for the following 9835 device */ | |
1854 | if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM && | |
1855 | dev->subsystem_device == 0x0299) | |
1856 | return; | |
1da177e4 LT |
1857 | case PCI_DEVICE_ID_NETMOS_9735: |
1858 | case PCI_DEVICE_ID_NETMOS_9745: | |
1da177e4 LT |
1859 | case PCI_DEVICE_ID_NETMOS_9845: |
1860 | case PCI_DEVICE_ID_NETMOS_9855: | |
08803efe | 1861 | if (num_parallel) { |
227f0647 | 1862 | dev_info(&dev->dev, "Netmos %04x (%u parallel, %u serial); changing class SERIAL to OTHER (use parport_serial)\n", |
1da177e4 LT |
1863 | dev->device, num_parallel, num_serial); |
1864 | dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) | | |
1865 | (dev->class & 0xff); | |
1866 | } | |
1867 | } | |
1868 | } | |
08803efe YL |
1869 | DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, |
1870 | PCI_CLASS_COMMUNICATION_SERIAL, 8, quirk_netmos); | |
1da177e4 | 1871 | |
15856ad5 | 1872 | static void quirk_e100_interrupt(struct pci_dev *dev) |
16a74744 | 1873 | { |
e64aeccb | 1874 | u16 command, pmcsr; |
16a74744 BH |
1875 | u8 __iomem *csr; |
1876 | u8 cmd_hi; | |
1877 | ||
1878 | switch (dev->device) { | |
1879 | /* PCI IDs taken from drivers/net/e100.c */ | |
1880 | case 0x1029: | |
1881 | case 0x1030 ... 0x1034: | |
1882 | case 0x1038 ... 0x103E: | |
1883 | case 0x1050 ... 0x1057: | |
1884 | case 0x1059: | |
1885 | case 0x1064 ... 0x106B: | |
1886 | case 0x1091 ... 0x1095: | |
1887 | case 0x1209: | |
1888 | case 0x1229: | |
1889 | case 0x2449: | |
1890 | case 0x2459: | |
1891 | case 0x245D: | |
1892 | case 0x27DC: | |
1893 | break; | |
1894 | default: | |
1895 | return; | |
1896 | } | |
1897 | ||
1898 | /* | |
1899 | * Some firmware hands off the e100 with interrupts enabled, | |
1900 | * which can cause a flood of interrupts if packets are | |
1901 | * received before the driver attaches to the device. So | |
1902 | * disable all e100 interrupts here. The driver will | |
1903 | * re-enable them when it's ready. | |
1904 | */ | |
1905 | pci_read_config_word(dev, PCI_COMMAND, &command); | |
16a74744 | 1906 | |
1bef7dc0 | 1907 | if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0)) |
16a74744 BH |
1908 | return; |
1909 | ||
e64aeccb IK |
1910 | /* |
1911 | * Check that the device is in the D0 power state. If it's not, | |
1912 | * there is no point to look any further. | |
1913 | */ | |
728cdb75 YW |
1914 | if (dev->pm_cap) { |
1915 | pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr); | |
e64aeccb IK |
1916 | if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0) |
1917 | return; | |
1918 | } | |
1919 | ||
1bef7dc0 BH |
1920 | /* Convert from PCI bus to resource space. */ |
1921 | csr = ioremap(pci_resource_start(dev, 0), 8); | |
16a74744 | 1922 | if (!csr) { |
f0fda801 | 1923 | dev_warn(&dev->dev, "Can't map e100 registers\n"); |
16a74744 BH |
1924 | return; |
1925 | } | |
1926 | ||
1927 | cmd_hi = readb(csr + 3); | |
1928 | if (cmd_hi == 0) { | |
227f0647 | 1929 | dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; disabling\n"); |
16a74744 BH |
1930 | writeb(1, csr + 3); |
1931 | } | |
1932 | ||
1933 | iounmap(csr); | |
1934 | } | |
4c5b28e2 YL |
1935 | DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, |
1936 | PCI_CLASS_NETWORK_ETHERNET, 8, quirk_e100_interrupt); | |
a5312e28 | 1937 | |
649426ef AD |
1938 | /* |
1939 | * The 82575 and 82598 may experience data corruption issues when transitioning | |
1940 | * out of L0S. To prevent this we need to disable L0S on the pci-e link | |
1941 | */ | |
15856ad5 | 1942 | static void quirk_disable_aspm_l0s(struct pci_dev *dev) |
649426ef AD |
1943 | { |
1944 | dev_info(&dev->dev, "Disabling L0s\n"); | |
1945 | pci_disable_link_state(dev, PCIE_LINK_STATE_L0S); | |
1946 | } | |
1947 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s); | |
1948 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s); | |
1949 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s); | |
1950 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s); | |
1951 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s); | |
1952 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s); | |
1953 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s); | |
1954 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s); | |
1955 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s); | |
1956 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s); | |
1957 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s); | |
1958 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s); | |
1959 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s); | |
1960 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s); | |
1961 | ||
15856ad5 | 1962 | static void fixup_rev1_53c810(struct pci_dev *dev) |
a5312e28 IK |
1963 | { |
1964 | /* rev 1 ncr53c810 chips don't set the class at all which means | |
1965 | * they don't get their resources remapped. Fix that here. | |
1966 | */ | |
1967 | ||
1968 | if (dev->class == PCI_CLASS_NOT_DEFINED) { | |
f0fda801 | 1969 | dev_info(&dev->dev, "NCR 53c810 rev 1 detected; setting PCI class\n"); |
a5312e28 IK |
1970 | dev->class = PCI_CLASS_STORAGE_SCSI; |
1971 | } | |
1972 | } | |
1973 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810); | |
1974 | ||
9d265124 | 1975 | /* Enable 1k I/O space granularity on the Intel P64H2 */ |
15856ad5 | 1976 | static void quirk_p64h2_1k_io(struct pci_dev *dev) |
9d265124 DY |
1977 | { |
1978 | u16 en1k; | |
9d265124 DY |
1979 | |
1980 | pci_read_config_word(dev, 0x40, &en1k); | |
1981 | ||
1982 | if (en1k & 0x200) { | |
f0fda801 | 1983 | dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n"); |
2b28ae19 | 1984 | dev->io_window_1k = 1; |
9d265124 DY |
1985 | } |
1986 | } | |
1987 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io); | |
1988 | ||
cf34a8e0 BG |
1989 | /* Under some circumstances, AER is not linked with extended capabilities. |
1990 | * Force it to be linked by setting the corresponding control bit in the | |
1991 | * config space. | |
1992 | */ | |
1597cacb | 1993 | static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev) |
cf34a8e0 BG |
1994 | { |
1995 | uint8_t b; | |
1996 | if (pci_read_config_byte(dev, 0xf41, &b) == 0) { | |
1997 | if (!(b & 0x20)) { | |
1998 | pci_write_config_byte(dev, 0xf41, b | 0x20); | |
227f0647 | 1999 | dev_info(&dev->dev, "Linking AER extended capability\n"); |
cf34a8e0 BG |
2000 | } |
2001 | } | |
2002 | } | |
2003 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, | |
2004 | quirk_nvidia_ck804_pcie_aer_ext_cap); | |
e1a2a51e | 2005 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, |
1597cacb | 2006 | quirk_nvidia_ck804_pcie_aer_ext_cap); |
cf34a8e0 | 2007 | |
15856ad5 | 2008 | static void quirk_via_cx700_pci_parking_caching(struct pci_dev *dev) |
53a9bf42 TY |
2009 | { |
2010 | /* | |
2011 | * Disable PCI Bus Parking and PCI Master read caching on CX700 | |
2012 | * which causes unspecified timing errors with a VT6212L on the PCI | |
ca846392 TY |
2013 | * bus leading to USB2.0 packet loss. |
2014 | * | |
2015 | * This quirk is only enabled if a second (on the external PCI bus) | |
2016 | * VT6212L is found -- the CX700 core itself also contains a USB | |
2017 | * host controller with the same PCI ID as the VT6212L. | |
53a9bf42 TY |
2018 | */ |
2019 | ||
ca846392 TY |
2020 | /* Count VT6212L instances */ |
2021 | struct pci_dev *p = pci_get_device(PCI_VENDOR_ID_VIA, | |
2022 | PCI_DEVICE_ID_VIA_8235_USB_2, NULL); | |
53a9bf42 | 2023 | uint8_t b; |
ca846392 TY |
2024 | |
2025 | /* p should contain the first (internal) VT6212L -- see if we have | |
2026 | an external one by searching again */ | |
2027 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235_USB_2, p); | |
2028 | if (!p) | |
2029 | return; | |
2030 | pci_dev_put(p); | |
2031 | ||
53a9bf42 TY |
2032 | if (pci_read_config_byte(dev, 0x76, &b) == 0) { |
2033 | if (b & 0x40) { | |
2034 | /* Turn off PCI Bus Parking */ | |
2035 | pci_write_config_byte(dev, 0x76, b ^ 0x40); | |
2036 | ||
227f0647 | 2037 | dev_info(&dev->dev, "Disabling VIA CX700 PCI parking\n"); |
bc043274 TY |
2038 | } |
2039 | } | |
2040 | ||
2041 | if (pci_read_config_byte(dev, 0x72, &b) == 0) { | |
2042 | if (b != 0) { | |
53a9bf42 TY |
2043 | /* Turn off PCI Master read caching */ |
2044 | pci_write_config_byte(dev, 0x72, 0x0); | |
bc043274 TY |
2045 | |
2046 | /* Set PCI Master Bus time-out to "1x16 PCLK" */ | |
53a9bf42 | 2047 | pci_write_config_byte(dev, 0x75, 0x1); |
bc043274 TY |
2048 | |
2049 | /* Disable "Read FIFO Timer" */ | |
53a9bf42 TY |
2050 | pci_write_config_byte(dev, 0x77, 0x0); |
2051 | ||
227f0647 | 2052 | dev_info(&dev->dev, "Disabling VIA CX700 PCI caching\n"); |
53a9bf42 TY |
2053 | } |
2054 | } | |
2055 | } | |
ca846392 | 2056 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching); |
53a9bf42 | 2057 | |
99cb233d BL |
2058 | /* |
2059 | * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the | |
2060 | * VPD end tag will hang the device. This problem was initially | |
2061 | * observed when a vpd entry was created in sysfs | |
2062 | * ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry | |
2063 | * will dump 32k of data. Reading a full 32k will cause an access | |
2064 | * beyond the VPD end tag causing the device to hang. Once the device | |
2065 | * is hung, the bnx2 driver will not be able to reset the device. | |
2066 | * We believe that it is legal to read beyond the end tag and | |
2067 | * therefore the solution is to limit the read/write length. | |
2068 | */ | |
15856ad5 | 2069 | static void quirk_brcm_570x_limit_vpd(struct pci_dev *dev) |
99cb233d | 2070 | { |
9d82d8ea | 2071 | /* |
35405f25 DH |
2072 | * Only disable the VPD capability for 5706, 5706S, 5708, |
2073 | * 5708S and 5709 rev. A | |
9d82d8ea | 2074 | */ |
99cb233d | 2075 | if ((dev->device == PCI_DEVICE_ID_NX2_5706) || |
35405f25 | 2076 | (dev->device == PCI_DEVICE_ID_NX2_5706S) || |
99cb233d | 2077 | (dev->device == PCI_DEVICE_ID_NX2_5708) || |
9d82d8ea | 2078 | (dev->device == PCI_DEVICE_ID_NX2_5708S) || |
99cb233d BL |
2079 | ((dev->device == PCI_DEVICE_ID_NX2_5709) && |
2080 | (dev->revision & 0xf0) == 0x0)) { | |
2081 | if (dev->vpd) | |
2082 | dev->vpd->len = 0x80; | |
2083 | } | |
2084 | } | |
2085 | ||
bffadffd YZ |
2086 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
2087 | PCI_DEVICE_ID_NX2_5706, | |
2088 | quirk_brcm_570x_limit_vpd); | |
2089 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2090 | PCI_DEVICE_ID_NX2_5706S, | |
2091 | quirk_brcm_570x_limit_vpd); | |
2092 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2093 | PCI_DEVICE_ID_NX2_5708, | |
2094 | quirk_brcm_570x_limit_vpd); | |
2095 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2096 | PCI_DEVICE_ID_NX2_5708S, | |
2097 | quirk_brcm_570x_limit_vpd); | |
2098 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2099 | PCI_DEVICE_ID_NX2_5709, | |
2100 | quirk_brcm_570x_limit_vpd); | |
2101 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2102 | PCI_DEVICE_ID_NX2_5709S, | |
2103 | quirk_brcm_570x_limit_vpd); | |
99cb233d | 2104 | |
25e742b2 | 2105 | static void quirk_brcm_5719_limit_mrrs(struct pci_dev *dev) |
0b471506 MC |
2106 | { |
2107 | u32 rev; | |
2108 | ||
2109 | pci_read_config_dword(dev, 0xf4, &rev); | |
2110 | ||
2111 | /* Only CAP the MRRS if the device is a 5719 A0 */ | |
2112 | if (rev == 0x05719000) { | |
2113 | int readrq = pcie_get_readrq(dev); | |
2114 | if (readrq > 2048) | |
2115 | pcie_set_readrq(dev, 2048); | |
2116 | } | |
2117 | } | |
2118 | ||
2119 | DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_BROADCOM, | |
2120 | PCI_DEVICE_ID_TIGON3_5719, | |
2121 | quirk_brcm_5719_limit_mrrs); | |
2122 | ||
26c56dc0 MM |
2123 | /* Originally in EDAC sources for i82875P: |
2124 | * Intel tells BIOS developers to hide device 6 which | |
2125 | * configures the overflow device access containing | |
2126 | * the DRBs - this is where we expose device 6. | |
2127 | * http://www.x86-secret.com/articles/tweak/pat/patsecrets-2.htm | |
2128 | */ | |
15856ad5 | 2129 | static void quirk_unhide_mch_dev6(struct pci_dev *dev) |
26c56dc0 MM |
2130 | { |
2131 | u8 reg; | |
2132 | ||
2133 | if (pci_read_config_byte(dev, 0xF4, ®) == 0 && !(reg & 0x02)) { | |
2134 | dev_info(&dev->dev, "Enabling MCH 'Overflow' Device\n"); | |
2135 | pci_write_config_byte(dev, 0xF4, reg | 0x02); | |
2136 | } | |
2137 | } | |
2138 | ||
2139 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, | |
2140 | quirk_unhide_mch_dev6); | |
2141 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, | |
2142 | quirk_unhide_mch_dev6); | |
2143 | ||
12962267 | 2144 | #ifdef CONFIG_TILEPRO |
f02cbbe6 | 2145 | /* |
12962267 | 2146 | * The Tilera TILEmpower tilepro platform needs to set the link speed |
f02cbbe6 CM |
2147 | * to 2.5GT(Giga-Transfers)/s (Gen 1). The default link speed |
2148 | * setting is 5GT/s (Gen 2). 0x98 is the Link Control2 PCIe | |
2149 | * capability register of the PEX8624 PCIe switch. The switch | |
2150 | * supports link speed auto negotiation, but falsely sets | |
2151 | * the link speed to 5GT/s. | |
2152 | */ | |
15856ad5 | 2153 | static void quirk_tile_plx_gen1(struct pci_dev *dev) |
f02cbbe6 CM |
2154 | { |
2155 | if (tile_plx_gen1) { | |
2156 | pci_write_config_dword(dev, 0x98, 0x1); | |
2157 | mdelay(50); | |
2158 | } | |
2159 | } | |
2160 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8624, quirk_tile_plx_gen1); | |
12962267 | 2161 | #endif /* CONFIG_TILEPRO */ |
26c56dc0 | 2162 | |
3f79e107 | 2163 | #ifdef CONFIG_PCI_MSI |
ebdf7d39 TH |
2164 | /* Some chipsets do not support MSI. We cannot easily rely on setting |
2165 | * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually | |
f7625980 BH |
2166 | * some other buses controlled by the chipset even if Linux is not |
2167 | * aware of it. Instead of setting the flag on all buses in the | |
ebdf7d39 | 2168 | * machine, simply disable MSI globally. |
3f79e107 | 2169 | */ |
15856ad5 | 2170 | static void quirk_disable_all_msi(struct pci_dev *dev) |
3f79e107 | 2171 | { |
88187dfa | 2172 | pci_no_msi(); |
f0fda801 | 2173 | dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n"); |
3f79e107 | 2174 | } |
ebdf7d39 TH |
2175 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi); |
2176 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi); | |
2177 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi); | |
66d715c9 | 2178 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi); |
184b812f | 2179 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi); |
162dedd3 | 2180 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi); |
549e1561 | 2181 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi); |
3f79e107 BG |
2182 | |
2183 | /* Disable MSI on chipsets that are known to not support it */ | |
15856ad5 | 2184 | static void quirk_disable_msi(struct pci_dev *dev) |
3f79e107 BG |
2185 | { |
2186 | if (dev->subordinate) { | |
227f0647 | 2187 | dev_warn(&dev->dev, "MSI quirk detected; subordinate MSI disabled\n"); |
3f79e107 BG |
2188 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; |
2189 | } | |
2190 | } | |
2191 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi); | |
134b3450 | 2192 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0xa238, quirk_disable_msi); |
9313ff45 | 2193 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x5a3f, quirk_disable_msi); |
6397c75c | 2194 | |
aff61369 CL |
2195 | /* |
2196 | * The APC bridge device in AMD 780 family northbridges has some random | |
2197 | * OEM subsystem ID in its vendor ID register (erratum 18), so instead | |
2198 | * we use the possible vendor/device IDs of the host bridge for the | |
2199 | * declared quirk, and search for the APC bridge by slot number. | |
2200 | */ | |
15856ad5 | 2201 | static void quirk_amd_780_apc_msi(struct pci_dev *host_bridge) |
aff61369 CL |
2202 | { |
2203 | struct pci_dev *apc_bridge; | |
2204 | ||
2205 | apc_bridge = pci_get_slot(host_bridge->bus, PCI_DEVFN(1, 0)); | |
2206 | if (apc_bridge) { | |
2207 | if (apc_bridge->device == 0x9602) | |
2208 | quirk_disable_msi(apc_bridge); | |
2209 | pci_dev_put(apc_bridge); | |
2210 | } | |
2211 | } | |
2212 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9600, quirk_amd_780_apc_msi); | |
2213 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9601, quirk_amd_780_apc_msi); | |
2214 | ||
6397c75c BG |
2215 | /* Go through the list of Hypertransport capabilities and |
2216 | * return 1 if a HT MSI capability is found and enabled */ | |
25e742b2 | 2217 | static int msi_ht_cap_enabled(struct pci_dev *dev) |
6397c75c | 2218 | { |
7a380507 ME |
2219 | int pos, ttl = 48; |
2220 | ||
2221 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); | |
2222 | while (pos && ttl--) { | |
2223 | u8 flags; | |
2224 | ||
2225 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, | |
3c78bc61 | 2226 | &flags) == 0) { |
f0fda801 | 2227 | dev_info(&dev->dev, "Found %s HT MSI Mapping\n", |
7a380507 | 2228 | flags & HT_MSI_FLAGS_ENABLE ? |
f0fda801 | 2229 | "enabled" : "disabled"); |
7a380507 | 2230 | return (flags & HT_MSI_FLAGS_ENABLE) != 0; |
6397c75c | 2231 | } |
7a380507 ME |
2232 | |
2233 | pos = pci_find_next_ht_capability(dev, pos, | |
2234 | HT_CAPTYPE_MSI_MAPPING); | |
6397c75c BG |
2235 | } |
2236 | return 0; | |
2237 | } | |
2238 | ||
2239 | /* Check the hypertransport MSI mapping to know whether MSI is enabled or not */ | |
25e742b2 | 2240 | static void quirk_msi_ht_cap(struct pci_dev *dev) |
6397c75c BG |
2241 | { |
2242 | if (dev->subordinate && !msi_ht_cap_enabled(dev)) { | |
227f0647 | 2243 | dev_warn(&dev->dev, "MSI quirk detected; subordinate MSI disabled\n"); |
6397c75c BG |
2244 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; |
2245 | } | |
2246 | } | |
2247 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE, | |
2248 | quirk_msi_ht_cap); | |
6bae1d96 | 2249 | |
6397c75c BG |
2250 | /* The nVidia CK804 chipset may have 2 HT MSI mappings. |
2251 | * MSI are supported if the MSI capability set in any of these mappings. | |
2252 | */ | |
25e742b2 | 2253 | static void quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev) |
6397c75c BG |
2254 | { |
2255 | struct pci_dev *pdev; | |
2256 | ||
2257 | if (!dev->subordinate) | |
2258 | return; | |
2259 | ||
2260 | /* check HT MSI cap on this chipset and the root one. | |
2261 | * a single one having MSI is enough to be sure that MSI are supported. | |
2262 | */ | |
11f242f0 | 2263 | pdev = pci_get_slot(dev->bus, 0); |
9ac0ce85 JJ |
2264 | if (!pdev) |
2265 | return; | |
0c875c28 | 2266 | if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) { |
227f0647 | 2267 | dev_warn(&dev->dev, "MSI quirk detected; subordinate MSI disabled\n"); |
6397c75c BG |
2268 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; |
2269 | } | |
11f242f0 | 2270 | pci_dev_put(pdev); |
6397c75c BG |
2271 | } |
2272 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, | |
2273 | quirk_nvidia_ck804_msi_ht_cap); | |
ba698ad4 | 2274 | |
415b6d0e | 2275 | /* Force enable MSI mapping capability on HT bridges */ |
25e742b2 | 2276 | static void ht_enable_msi_mapping(struct pci_dev *dev) |
9dc625e7 PC |
2277 | { |
2278 | int pos, ttl = 48; | |
2279 | ||
2280 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); | |
2281 | while (pos && ttl--) { | |
2282 | u8 flags; | |
2283 | ||
2284 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, | |
2285 | &flags) == 0) { | |
2286 | dev_info(&dev->dev, "Enabling HT MSI Mapping\n"); | |
2287 | ||
2288 | pci_write_config_byte(dev, pos + HT_MSI_FLAGS, | |
2289 | flags | HT_MSI_FLAGS_ENABLE); | |
2290 | } | |
2291 | pos = pci_find_next_ht_capability(dev, pos, | |
2292 | HT_CAPTYPE_MSI_MAPPING); | |
2293 | } | |
2294 | } | |
415b6d0e BH |
2295 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS, |
2296 | PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB, | |
2297 | ht_enable_msi_mapping); | |
9dc625e7 | 2298 | |
e0ae4f55 YL |
2299 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, |
2300 | ht_enable_msi_mapping); | |
2301 | ||
e4146bb9 | 2302 | /* The P5N32-SLI motherboards from Asus have a problem with msi |
75e07fc3 AP |
2303 | * for the MCP55 NIC. It is not yet determined whether the msi problem |
2304 | * also affects other devices. As for now, turn off msi for this device. | |
2305 | */ | |
15856ad5 | 2306 | static void nvenet_msi_disable(struct pci_dev *dev) |
75e07fc3 | 2307 | { |
9251bac9 JD |
2308 | const char *board_name = dmi_get_system_info(DMI_BOARD_NAME); |
2309 | ||
2310 | if (board_name && | |
2311 | (strstr(board_name, "P5N32-SLI PREMIUM") || | |
2312 | strstr(board_name, "P5N32-E SLI"))) { | |
227f0647 | 2313 | dev_info(&dev->dev, "Disabling msi for MCP55 NIC on P5N32-SLI\n"); |
75e07fc3 AP |
2314 | dev->no_msi = 1; |
2315 | } | |
2316 | } | |
2317 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA, | |
2318 | PCI_DEVICE_ID_NVIDIA_NVENET_15, | |
2319 | nvenet_msi_disable); | |
2320 | ||
66db60ea | 2321 | /* |
f7625980 BH |
2322 | * Some versions of the MCP55 bridge from Nvidia have a legacy IRQ routing |
2323 | * config register. This register controls the routing of legacy | |
2324 | * interrupts from devices that route through the MCP55. If this register | |
2325 | * is misprogrammed, interrupts are only sent to the BSP, unlike | |
2326 | * conventional systems where the IRQ is broadcast to all online CPUs. Not | |
2327 | * having this register set properly prevents kdump from booting up | |
2328 | * properly, so let's make sure that we have it set correctly. | |
2329 | * Note that this is an undocumented register. | |
66db60ea | 2330 | */ |
15856ad5 | 2331 | static void nvbridge_check_legacy_irq_routing(struct pci_dev *dev) |
66db60ea NH |
2332 | { |
2333 | u32 cfg; | |
2334 | ||
49c2fa08 NH |
2335 | if (!pci_find_capability(dev, PCI_CAP_ID_HT)) |
2336 | return; | |
2337 | ||
66db60ea NH |
2338 | pci_read_config_dword(dev, 0x74, &cfg); |
2339 | ||
2340 | if (cfg & ((1 << 2) | (1 << 15))) { | |
2341 | printk(KERN_INFO "Rewriting irq routing register on MCP55\n"); | |
2342 | cfg &= ~((1 << 2) | (1 << 15)); | |
2343 | pci_write_config_dword(dev, 0x74, cfg); | |
2344 | } | |
2345 | } | |
2346 | ||
2347 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA, | |
2348 | PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V0, | |
2349 | nvbridge_check_legacy_irq_routing); | |
2350 | ||
2351 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA, | |
2352 | PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V4, | |
2353 | nvbridge_check_legacy_irq_routing); | |
2354 | ||
25e742b2 | 2355 | static int ht_check_msi_mapping(struct pci_dev *dev) |
de745306 YL |
2356 | { |
2357 | int pos, ttl = 48; | |
2358 | int found = 0; | |
2359 | ||
2360 | /* check if there is HT MSI cap or enabled on this device */ | |
2361 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); | |
2362 | while (pos && ttl--) { | |
2363 | u8 flags; | |
2364 | ||
2365 | if (found < 1) | |
2366 | found = 1; | |
2367 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, | |
2368 | &flags) == 0) { | |
2369 | if (flags & HT_MSI_FLAGS_ENABLE) { | |
2370 | if (found < 2) { | |
2371 | found = 2; | |
2372 | break; | |
2373 | } | |
2374 | } | |
2375 | } | |
2376 | pos = pci_find_next_ht_capability(dev, pos, | |
2377 | HT_CAPTYPE_MSI_MAPPING); | |
2378 | } | |
2379 | ||
2380 | return found; | |
2381 | } | |
2382 | ||
25e742b2 | 2383 | static int host_bridge_with_leaf(struct pci_dev *host_bridge) |
de745306 YL |
2384 | { |
2385 | struct pci_dev *dev; | |
2386 | int pos; | |
2387 | int i, dev_no; | |
2388 | int found = 0; | |
2389 | ||
2390 | dev_no = host_bridge->devfn >> 3; | |
2391 | for (i = dev_no + 1; i < 0x20; i++) { | |
2392 | dev = pci_get_slot(host_bridge->bus, PCI_DEVFN(i, 0)); | |
2393 | if (!dev) | |
2394 | continue; | |
2395 | ||
2396 | /* found next host bridge ?*/ | |
2397 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE); | |
2398 | if (pos != 0) { | |
2399 | pci_dev_put(dev); | |
2400 | break; | |
2401 | } | |
2402 | ||
2403 | if (ht_check_msi_mapping(dev)) { | |
2404 | found = 1; | |
2405 | pci_dev_put(dev); | |
2406 | break; | |
2407 | } | |
2408 | pci_dev_put(dev); | |
2409 | } | |
2410 | ||
2411 | return found; | |
2412 | } | |
2413 | ||
eeafda70 YL |
2414 | #define PCI_HT_CAP_SLAVE_CTRL0 4 /* link control */ |
2415 | #define PCI_HT_CAP_SLAVE_CTRL1 8 /* link control to */ | |
2416 | ||
25e742b2 | 2417 | static int is_end_of_ht_chain(struct pci_dev *dev) |
eeafda70 YL |
2418 | { |
2419 | int pos, ctrl_off; | |
2420 | int end = 0; | |
2421 | u16 flags, ctrl; | |
2422 | ||
2423 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE); | |
2424 | ||
2425 | if (!pos) | |
2426 | goto out; | |
2427 | ||
2428 | pci_read_config_word(dev, pos + PCI_CAP_FLAGS, &flags); | |
2429 | ||
2430 | ctrl_off = ((flags >> 10) & 1) ? | |
2431 | PCI_HT_CAP_SLAVE_CTRL0 : PCI_HT_CAP_SLAVE_CTRL1; | |
2432 | pci_read_config_word(dev, pos + ctrl_off, &ctrl); | |
2433 | ||
2434 | if (ctrl & (1 << 6)) | |
2435 | end = 1; | |
2436 | ||
2437 | out: | |
2438 | return end; | |
2439 | } | |
2440 | ||
25e742b2 | 2441 | static void nv_ht_enable_msi_mapping(struct pci_dev *dev) |
9dc625e7 PC |
2442 | { |
2443 | struct pci_dev *host_bridge; | |
1dec6b05 YL |
2444 | int pos; |
2445 | int i, dev_no; | |
2446 | int found = 0; | |
2447 | ||
2448 | dev_no = dev->devfn >> 3; | |
2449 | for (i = dev_no; i >= 0; i--) { | |
2450 | host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0)); | |
2451 | if (!host_bridge) | |
2452 | continue; | |
2453 | ||
2454 | pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE); | |
2455 | if (pos != 0) { | |
2456 | found = 1; | |
2457 | break; | |
2458 | } | |
2459 | pci_dev_put(host_bridge); | |
2460 | } | |
2461 | ||
2462 | if (!found) | |
2463 | return; | |
2464 | ||
eeafda70 YL |
2465 | /* don't enable end_device/host_bridge with leaf directly here */ |
2466 | if (host_bridge == dev && is_end_of_ht_chain(host_bridge) && | |
2467 | host_bridge_with_leaf(host_bridge)) | |
de745306 YL |
2468 | goto out; |
2469 | ||
1dec6b05 YL |
2470 | /* root did that ! */ |
2471 | if (msi_ht_cap_enabled(host_bridge)) | |
2472 | goto out; | |
2473 | ||
2474 | ht_enable_msi_mapping(dev); | |
2475 | ||
2476 | out: | |
2477 | pci_dev_put(host_bridge); | |
2478 | } | |
2479 | ||
25e742b2 | 2480 | static void ht_disable_msi_mapping(struct pci_dev *dev) |
1dec6b05 YL |
2481 | { |
2482 | int pos, ttl = 48; | |
2483 | ||
2484 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); | |
2485 | while (pos && ttl--) { | |
2486 | u8 flags; | |
2487 | ||
2488 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, | |
2489 | &flags) == 0) { | |
6a958d5b | 2490 | dev_info(&dev->dev, "Disabling HT MSI Mapping\n"); |
1dec6b05 YL |
2491 | |
2492 | pci_write_config_byte(dev, pos + HT_MSI_FLAGS, | |
2493 | flags & ~HT_MSI_FLAGS_ENABLE); | |
2494 | } | |
2495 | pos = pci_find_next_ht_capability(dev, pos, | |
2496 | HT_CAPTYPE_MSI_MAPPING); | |
2497 | } | |
2498 | } | |
2499 | ||
25e742b2 | 2500 | static void __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all) |
1dec6b05 YL |
2501 | { |
2502 | struct pci_dev *host_bridge; | |
2503 | int pos; | |
2504 | int found; | |
2505 | ||
3d2a5318 RW |
2506 | if (!pci_msi_enabled()) |
2507 | return; | |
2508 | ||
1dec6b05 YL |
2509 | /* check if there is HT MSI cap or enabled on this device */ |
2510 | found = ht_check_msi_mapping(dev); | |
2511 | ||
2512 | /* no HT MSI CAP */ | |
2513 | if (found == 0) | |
2514 | return; | |
9dc625e7 PC |
2515 | |
2516 | /* | |
2517 | * HT MSI mapping should be disabled on devices that are below | |
2518 | * a non-Hypertransport host bridge. Locate the host bridge... | |
2519 | */ | |
2520 | host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0)); | |
2521 | if (host_bridge == NULL) { | |
227f0647 | 2522 | dev_warn(&dev->dev, "nv_msi_ht_cap_quirk didn't locate host bridge\n"); |
9dc625e7 PC |
2523 | return; |
2524 | } | |
2525 | ||
2526 | pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE); | |
2527 | if (pos != 0) { | |
2528 | /* Host bridge is to HT */ | |
1dec6b05 YL |
2529 | if (found == 1) { |
2530 | /* it is not enabled, try to enable it */ | |
de745306 YL |
2531 | if (all) |
2532 | ht_enable_msi_mapping(dev); | |
2533 | else | |
2534 | nv_ht_enable_msi_mapping(dev); | |
1dec6b05 | 2535 | } |
dff3aef7 | 2536 | goto out; |
9dc625e7 PC |
2537 | } |
2538 | ||
1dec6b05 YL |
2539 | /* HT MSI is not enabled */ |
2540 | if (found == 1) | |
dff3aef7 | 2541 | goto out; |
9dc625e7 | 2542 | |
1dec6b05 YL |
2543 | /* Host bridge is not to HT, disable HT MSI mapping on this device */ |
2544 | ht_disable_msi_mapping(dev); | |
dff3aef7 MS |
2545 | |
2546 | out: | |
2547 | pci_dev_put(host_bridge); | |
9dc625e7 | 2548 | } |
de745306 | 2549 | |
25e742b2 | 2550 | static void nv_msi_ht_cap_quirk_all(struct pci_dev *dev) |
de745306 YL |
2551 | { |
2552 | return __nv_msi_ht_cap_quirk(dev, 1); | |
2553 | } | |
2554 | ||
25e742b2 | 2555 | static void nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev) |
de745306 YL |
2556 | { |
2557 | return __nv_msi_ht_cap_quirk(dev, 0); | |
2558 | } | |
2559 | ||
2560 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf); | |
6dab62ee | 2561 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf); |
de745306 YL |
2562 | |
2563 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all); | |
6dab62ee | 2564 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all); |
9dc625e7 | 2565 | |
15856ad5 | 2566 | static void quirk_msi_intx_disable_bug(struct pci_dev *dev) |
ba698ad4 DM |
2567 | { |
2568 | dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG; | |
2569 | } | |
15856ad5 | 2570 | static void quirk_msi_intx_disable_ati_bug(struct pci_dev *dev) |
4600c9d7 SH |
2571 | { |
2572 | struct pci_dev *p; | |
2573 | ||
2574 | /* SB700 MSI issue will be fixed at HW level from revision A21, | |
2575 | * we need check PCI REVISION ID of SMBus controller to get SB700 | |
2576 | * revision. | |
2577 | */ | |
2578 | p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS, | |
2579 | NULL); | |
2580 | if (!p) | |
2581 | return; | |
2582 | ||
2583 | if ((p->revision < 0x3B) && (p->revision >= 0x30)) | |
2584 | dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG; | |
2585 | pci_dev_put(p); | |
2586 | } | |
70588818 XH |
2587 | static void quirk_msi_intx_disable_qca_bug(struct pci_dev *dev) |
2588 | { | |
2589 | /* AR816X/AR817X/E210X MSI is fixed at HW level from revision 0x18 */ | |
2590 | if (dev->revision < 0x18) { | |
2591 | dev_info(&dev->dev, "set MSI_INTX_DISABLE_BUG flag\n"); | |
2592 | dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG; | |
2593 | } | |
2594 | } | |
ba698ad4 DM |
2595 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
2596 | PCI_DEVICE_ID_TIGON3_5780, | |
2597 | quirk_msi_intx_disable_bug); | |
2598 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2599 | PCI_DEVICE_ID_TIGON3_5780S, | |
2600 | quirk_msi_intx_disable_bug); | |
2601 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2602 | PCI_DEVICE_ID_TIGON3_5714, | |
2603 | quirk_msi_intx_disable_bug); | |
2604 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2605 | PCI_DEVICE_ID_TIGON3_5714S, | |
2606 | quirk_msi_intx_disable_bug); | |
2607 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2608 | PCI_DEVICE_ID_TIGON3_5715, | |
2609 | quirk_msi_intx_disable_bug); | |
2610 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, | |
2611 | PCI_DEVICE_ID_TIGON3_5715S, | |
2612 | quirk_msi_intx_disable_bug); | |
2613 | ||
bc38b411 | 2614 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390, |
4600c9d7 | 2615 | quirk_msi_intx_disable_ati_bug); |
bc38b411 | 2616 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391, |
4600c9d7 | 2617 | quirk_msi_intx_disable_ati_bug); |
bc38b411 | 2618 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392, |
4600c9d7 | 2619 | quirk_msi_intx_disable_ati_bug); |
bc38b411 | 2620 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393, |
4600c9d7 | 2621 | quirk_msi_intx_disable_ati_bug); |
bc38b411 | 2622 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394, |
4600c9d7 | 2623 | quirk_msi_intx_disable_ati_bug); |
bc38b411 DM |
2624 | |
2625 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373, | |
2626 | quirk_msi_intx_disable_bug); | |
2627 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374, | |
2628 | quirk_msi_intx_disable_bug); | |
2629 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375, | |
2630 | quirk_msi_intx_disable_bug); | |
2631 | ||
7cb6a291 HX |
2632 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1062, |
2633 | quirk_msi_intx_disable_bug); | |
2634 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1063, | |
2635 | quirk_msi_intx_disable_bug); | |
2636 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2060, | |
2637 | quirk_msi_intx_disable_bug); | |
2638 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2062, | |
2639 | quirk_msi_intx_disable_bug); | |
2640 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1073, | |
2641 | quirk_msi_intx_disable_bug); | |
2642 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1083, | |
2643 | quirk_msi_intx_disable_bug); | |
70588818 XH |
2644 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1090, |
2645 | quirk_msi_intx_disable_qca_bug); | |
2646 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1091, | |
2647 | quirk_msi_intx_disable_qca_bug); | |
2648 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a0, | |
2649 | quirk_msi_intx_disable_qca_bug); | |
2650 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a1, | |
2651 | quirk_msi_intx_disable_qca_bug); | |
2652 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0xe091, | |
2653 | quirk_msi_intx_disable_qca_bug); | |
3f79e107 | 2654 | #endif /* CONFIG_PCI_MSI */ |
3d137310 | 2655 | |
3322340a FR |
2656 | /* Allow manual resource allocation for PCI hotplug bridges |
2657 | * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For | |
2658 | * some PCI-PCI hotplug bridges, like PLX 6254 (former HINT HB6), | |
f7625980 | 2659 | * kernel fails to allocate resources when hotplug device is |
3322340a FR |
2660 | * inserted and PCI bus is rescanned. |
2661 | */ | |
15856ad5 | 2662 | static void quirk_hotplug_bridge(struct pci_dev *dev) |
3322340a FR |
2663 | { |
2664 | dev->is_hotplug_bridge = 1; | |
2665 | } | |
2666 | ||
2667 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0020, quirk_hotplug_bridge); | |
2668 | ||
03cd8f7e ML |
2669 | /* |
2670 | * This is a quirk for the Ricoh MMC controller found as a part of | |
2671 | * some mulifunction chips. | |
2672 | ||
25985edc | 2673 | * This is very similar and based on the ricoh_mmc driver written by |
03cd8f7e ML |
2674 | * Philip Langdale. Thank you for these magic sequences. |
2675 | * | |
2676 | * These chips implement the four main memory card controllers (SD, MMC, MS, xD) | |
2677 | * and one or both of cardbus or firewire. | |
2678 | * | |
2679 | * It happens that they implement SD and MMC | |
2680 | * support as separate controllers (and PCI functions). The linux SDHCI | |
2681 | * driver supports MMC cards but the chip detects MMC cards in hardware | |
2682 | * and directs them to the MMC controller - so the SDHCI driver never sees | |
2683 | * them. | |
2684 | * | |
2685 | * To get around this, we must disable the useless MMC controller. | |
2686 | * At that point, the SDHCI controller will start seeing them | |
2687 | * It seems to be the case that the relevant PCI registers to deactivate the | |
2688 | * MMC controller live on PCI function 0, which might be the cardbus controller | |
2689 | * or the firewire controller, depending on the particular chip in question | |
2690 | * | |
2691 | * This has to be done early, because as soon as we disable the MMC controller | |
2692 | * other pci functions shift up one level, e.g. function #2 becomes function | |
2693 | * #1, and this will confuse the pci core. | |
2694 | */ | |
2695 | ||
2696 | #ifdef CONFIG_MMC_RICOH_MMC | |
2697 | static void ricoh_mmc_fixup_rl5c476(struct pci_dev *dev) | |
2698 | { | |
2699 | /* disable via cardbus interface */ | |
2700 | u8 write_enable; | |
2701 | u8 write_target; | |
2702 | u8 disable; | |
2703 | ||
2704 | /* disable must be done via function #0 */ | |
2705 | if (PCI_FUNC(dev->devfn)) | |
2706 | return; | |
2707 | ||
2708 | pci_read_config_byte(dev, 0xB7, &disable); | |
2709 | if (disable & 0x02) | |
2710 | return; | |
2711 | ||
2712 | pci_read_config_byte(dev, 0x8E, &write_enable); | |
2713 | pci_write_config_byte(dev, 0x8E, 0xAA); | |
2714 | pci_read_config_byte(dev, 0x8D, &write_target); | |
2715 | pci_write_config_byte(dev, 0x8D, 0xB7); | |
2716 | pci_write_config_byte(dev, 0xB7, disable | 0x02); | |
2717 | pci_write_config_byte(dev, 0x8E, write_enable); | |
2718 | pci_write_config_byte(dev, 0x8D, write_target); | |
2719 | ||
2720 | dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via cardbus function)\n"); | |
2721 | dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller\n"); | |
2722 | } | |
2723 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476); | |
2724 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476); | |
2725 | ||
2726 | static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev) | |
2727 | { | |
2728 | /* disable via firewire interface */ | |
2729 | u8 write_enable; | |
2730 | u8 disable; | |
2731 | ||
2732 | /* disable must be done via function #0 */ | |
2733 | if (PCI_FUNC(dev->devfn)) | |
2734 | return; | |
15bed0f2 | 2735 | /* |
812089e0 | 2736 | * RICOH 0xe822 and 0xe823 SD/MMC card readers fail to recognize |
15bed0f2 MI |
2737 | * certain types of SD/MMC cards. Lowering the SD base |
2738 | * clock frequency from 200Mhz to 50Mhz fixes this issue. | |
2739 | * | |
2740 | * 0x150 - SD2.0 mode enable for changing base clock | |
2741 | * frequency to 50Mhz | |
2742 | * 0xe1 - Base clock frequency | |
2743 | * 0x32 - 50Mhz new clock frequency | |
2744 | * 0xf9 - Key register for 0x150 | |
2745 | * 0xfc - key register for 0xe1 | |
2746 | */ | |
812089e0 AL |
2747 | if (dev->device == PCI_DEVICE_ID_RICOH_R5CE822 || |
2748 | dev->device == PCI_DEVICE_ID_RICOH_R5CE823) { | |
15bed0f2 MI |
2749 | pci_write_config_byte(dev, 0xf9, 0xfc); |
2750 | pci_write_config_byte(dev, 0x150, 0x10); | |
2751 | pci_write_config_byte(dev, 0xf9, 0x00); | |
2752 | pci_write_config_byte(dev, 0xfc, 0x01); | |
2753 | pci_write_config_byte(dev, 0xe1, 0x32); | |
2754 | pci_write_config_byte(dev, 0xfc, 0x00); | |
2755 | ||
2756 | dev_notice(&dev->dev, "MMC controller base frequency changed to 50Mhz.\n"); | |
2757 | } | |
3e309cdf JB |
2758 | |
2759 | pci_read_config_byte(dev, 0xCB, &disable); | |
2760 | ||
2761 | if (disable & 0x02) | |
2762 | return; | |
2763 | ||
2764 | pci_read_config_byte(dev, 0xCA, &write_enable); | |
2765 | pci_write_config_byte(dev, 0xCA, 0x57); | |
2766 | pci_write_config_byte(dev, 0xCB, disable | 0x02); | |
2767 | pci_write_config_byte(dev, 0xCA, write_enable); | |
2768 | ||
2769 | dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via firewire function)\n"); | |
2770 | dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller\n"); | |
2771 | ||
03cd8f7e ML |
2772 | } |
2773 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832); | |
2774 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832); | |
812089e0 AL |
2775 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832); |
2776 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832); | |
be98ca65 MI |
2777 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832); |
2778 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832); | |
03cd8f7e ML |
2779 | #endif /*CONFIG_MMC_RICOH_MMC*/ |
2780 | ||
d3f13810 | 2781 | #ifdef CONFIG_DMAR_TABLE |
254e4200 SS |
2782 | #define VTUNCERRMSK_REG 0x1ac |
2783 | #define VTD_MSK_SPEC_ERRORS (1 << 31) | |
2784 | /* | |
2785 | * This is a quirk for masking vt-d spec defined errors to platform error | |
2786 | * handling logic. With out this, platforms using Intel 7500, 5500 chipsets | |
2787 | * (and the derivative chipsets like X58 etc) seem to generate NMI/SMI (based | |
2788 | * on the RAS config settings of the platform) when a vt-d fault happens. | |
2789 | * The resulting SMI caused the system to hang. | |
2790 | * | |
2791 | * VT-d spec related errors are already handled by the VT-d OS code, so no | |
2792 | * need to report the same error through other channels. | |
2793 | */ | |
2794 | static void vtd_mask_spec_errors(struct pci_dev *dev) | |
2795 | { | |
2796 | u32 word; | |
2797 | ||
2798 | pci_read_config_dword(dev, VTUNCERRMSK_REG, &word); | |
2799 | pci_write_config_dword(dev, VTUNCERRMSK_REG, word | VTD_MSK_SPEC_ERRORS); | |
2800 | } | |
2801 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors); | |
2802 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors); | |
2803 | #endif | |
03cd8f7e | 2804 | |
15856ad5 | 2805 | static void fixup_ti816x_class(struct pci_dev *dev) |
63c44080 HP |
2806 | { |
2807 | /* TI 816x devices do not have class code set when in PCIe boot mode */ | |
40c96236 YL |
2808 | dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n"); |
2809 | dev->class = PCI_CLASS_MULTIMEDIA_VIDEO; | |
63c44080 | 2810 | } |
40c96236 YL |
2811 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_TI, 0xb800, |
2812 | PCI_CLASS_NOT_DEFINED, 0, fixup_ti816x_class); | |
63c44080 | 2813 | |
a94d072b BH |
2814 | /* Some PCIe devices do not work reliably with the claimed maximum |
2815 | * payload size supported. | |
2816 | */ | |
15856ad5 | 2817 | static void fixup_mpss_256(struct pci_dev *dev) |
a94d072b BH |
2818 | { |
2819 | dev->pcie_mpss = 1; /* 256 bytes */ | |
2820 | } | |
2821 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE, | |
2822 | PCI_DEVICE_ID_SOLARFLARE_SFC4000A_0, fixup_mpss_256); | |
2823 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE, | |
2824 | PCI_DEVICE_ID_SOLARFLARE_SFC4000A_1, fixup_mpss_256); | |
2825 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE, | |
2826 | PCI_DEVICE_ID_SOLARFLARE_SFC4000B, fixup_mpss_256); | |
2827 | ||
d387a8d6 JM |
2828 | /* Intel 5000 and 5100 Memory controllers have an errata with read completion |
2829 | * coalescing (which is enabled by default on some BIOSes) and MPS of 256B. | |
2830 | * Since there is no way of knowing what the PCIE MPS on each fabric will be | |
2831 | * until all of the devices are discovered and buses walked, read completion | |
2832 | * coalescing must be disabled. Unfortunately, it cannot be re-enabled because | |
2833 | * it is possible to hotplug a device with MPS of 256B. | |
2834 | */ | |
15856ad5 | 2835 | static void quirk_intel_mc_errata(struct pci_dev *dev) |
d387a8d6 JM |
2836 | { |
2837 | int err; | |
2838 | u16 rcc; | |
2839 | ||
2840 | if (pcie_bus_config == PCIE_BUS_TUNE_OFF) | |
2841 | return; | |
2842 | ||
2843 | /* Intel errata specifies bits to change but does not say what they are. | |
2844 | * Keeping them magical until such time as the registers and values can | |
2845 | * be explained. | |
2846 | */ | |
2847 | err = pci_read_config_word(dev, 0x48, &rcc); | |
2848 | if (err) { | |
227f0647 | 2849 | dev_err(&dev->dev, "Error attempting to read the read completion coalescing register\n"); |
d387a8d6 JM |
2850 | return; |
2851 | } | |
2852 | ||
2853 | if (!(rcc & (1 << 10))) | |
2854 | return; | |
2855 | ||
2856 | rcc &= ~(1 << 10); | |
2857 | ||
2858 | err = pci_write_config_word(dev, 0x48, rcc); | |
2859 | if (err) { | |
227f0647 | 2860 | dev_err(&dev->dev, "Error attempting to write the read completion coalescing register\n"); |
d387a8d6 JM |
2861 | return; |
2862 | } | |
2863 | ||
227f0647 | 2864 | pr_info_once("Read completion coalescing disabled due to hardware errata relating to 256B MPS\n"); |
d387a8d6 JM |
2865 | } |
2866 | /* Intel 5000 series memory controllers and ports 2-7 */ | |
2867 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25c0, quirk_intel_mc_errata); | |
2868 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d0, quirk_intel_mc_errata); | |
2869 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d4, quirk_intel_mc_errata); | |
2870 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d8, quirk_intel_mc_errata); | |
2871 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_mc_errata); | |
2872 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_mc_errata); | |
2873 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_mc_errata); | |
2874 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_mc_errata); | |
2875 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_mc_errata); | |
2876 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_mc_errata); | |
2877 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_mc_errata); | |
2878 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_mc_errata); | |
2879 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_mc_errata); | |
2880 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_mc_errata); | |
2881 | /* Intel 5100 series memory controllers and ports 2-7 */ | |
2882 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65c0, quirk_intel_mc_errata); | |
2883 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e2, quirk_intel_mc_errata); | |
2884 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e3, quirk_intel_mc_errata); | |
2885 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e4, quirk_intel_mc_errata); | |
2886 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e5, quirk_intel_mc_errata); | |
2887 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e6, quirk_intel_mc_errata); | |
2888 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e7, quirk_intel_mc_errata); | |
2889 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f7, quirk_intel_mc_errata); | |
2890 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f8, quirk_intel_mc_errata); | |
2891 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata); | |
2892 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata); | |
2893 | ||
3209874a | 2894 | |
12b03188 JM |
2895 | /* |
2896 | * Ivytown NTB BAR sizes are misreported by the hardware due to an erratum. To | |
2897 | * work around this, query the size it should be configured to by the device and | |
2898 | * modify the resource end to correspond to this new size. | |
2899 | */ | |
2900 | static void quirk_intel_ntb(struct pci_dev *dev) | |
2901 | { | |
2902 | int rc; | |
2903 | u8 val; | |
2904 | ||
2905 | rc = pci_read_config_byte(dev, 0x00D0, &val); | |
2906 | if (rc) | |
2907 | return; | |
2908 | ||
2909 | dev->resource[2].end = dev->resource[2].start + ((u64) 1 << val) - 1; | |
2910 | ||
2911 | rc = pci_read_config_byte(dev, 0x00D1, &val); | |
2912 | if (rc) | |
2913 | return; | |
2914 | ||
2915 | dev->resource[4].end = dev->resource[4].start + ((u64) 1 << val) - 1; | |
2916 | } | |
2917 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e08, quirk_intel_ntb); | |
2918 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e0d, quirk_intel_ntb); | |
2919 | ||
2729d5b1 MS |
2920 | static ktime_t fixup_debug_start(struct pci_dev *dev, |
2921 | void (*fn)(struct pci_dev *dev)) | |
3209874a | 2922 | { |
2729d5b1 MS |
2923 | ktime_t calltime = ktime_set(0, 0); |
2924 | ||
2925 | dev_dbg(&dev->dev, "calling %pF\n", fn); | |
2926 | if (initcall_debug) { | |
2927 | pr_debug("calling %pF @ %i for %s\n", | |
2928 | fn, task_pid_nr(current), dev_name(&dev->dev)); | |
2929 | calltime = ktime_get(); | |
2930 | } | |
2931 | ||
2932 | return calltime; | |
2933 | } | |
2934 | ||
2935 | static void fixup_debug_report(struct pci_dev *dev, ktime_t calltime, | |
2936 | void (*fn)(struct pci_dev *dev)) | |
3209874a | 2937 | { |
2729d5b1 | 2938 | ktime_t delta, rettime; |
3209874a AV |
2939 | unsigned long long duration; |
2940 | ||
2729d5b1 MS |
2941 | if (initcall_debug) { |
2942 | rettime = ktime_get(); | |
2943 | delta = ktime_sub(rettime, calltime); | |
2944 | duration = (unsigned long long) ktime_to_ns(delta) >> 10; | |
2945 | pr_debug("pci fixup %pF returned after %lld usecs for %s\n", | |
2946 | fn, duration, dev_name(&dev->dev)); | |
2947 | } | |
3209874a AV |
2948 | } |
2949 | ||
f67fd55f TJ |
2950 | /* |
2951 | * Some BIOS implementations leave the Intel GPU interrupts enabled, | |
2952 | * even though no one is handling them (f.e. i915 driver is never loaded). | |
2953 | * Additionally the interrupt destination is not set up properly | |
2954 | * and the interrupt ends up -somewhere-. | |
2955 | * | |
2956 | * These spurious interrupts are "sticky" and the kernel disables | |
2957 | * the (shared) interrupt line after 100.000+ generated interrupts. | |
2958 | * | |
2959 | * Fix it by disabling the still enabled interrupts. | |
2960 | * This resolves crashes often seen on monitor unplug. | |
2961 | */ | |
2962 | #define I915_DEIER_REG 0x4400c | |
15856ad5 | 2963 | static void disable_igfx_irq(struct pci_dev *dev) |
f67fd55f TJ |
2964 | { |
2965 | void __iomem *regs = pci_iomap(dev, 0, 0); | |
2966 | if (regs == NULL) { | |
2967 | dev_warn(&dev->dev, "igfx quirk: Can't iomap PCI device\n"); | |
2968 | return; | |
2969 | } | |
2970 | ||
2971 | /* Check if any interrupt line is still enabled */ | |
2972 | if (readl(regs + I915_DEIER_REG) != 0) { | |
227f0647 | 2973 | dev_warn(&dev->dev, "BIOS left Intel GPU interrupts enabled; disabling\n"); |
f67fd55f TJ |
2974 | |
2975 | writel(0, regs + I915_DEIER_REG); | |
2976 | } | |
2977 | ||
2978 | pci_iounmap(dev, regs); | |
2979 | } | |
2980 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq); | |
2981 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq); | |
7c82126a | 2982 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0152, disable_igfx_irq); |
f67fd55f | 2983 | |
b8cac70a TB |
2984 | /* |
2985 | * PCI devices which are on Intel chips can skip the 10ms delay | |
2986 | * before entering D3 mode. | |
2987 | */ | |
2988 | static void quirk_remove_d3_delay(struct pci_dev *dev) | |
2989 | { | |
2990 | dev->d3_delay = 0; | |
2991 | } | |
2992 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay); | |
2993 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0412, quirk_remove_d3_delay); | |
2994 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c0c, quirk_remove_d3_delay); | |
2995 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay); | |
2996 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay); | |
2997 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay); | |
2998 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay); | |
2999 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay); | |
3000 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c18, quirk_remove_d3_delay); | |
3001 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c1c, quirk_remove_d3_delay); | |
3002 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3_delay); | |
3003 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3_delay); | |
3004 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay); | |
3005 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay); | |
3006 | ||
fbebb9fd BH |
3007 | /* |
3008 | * Some devices may pass our check in pci_intx_mask_supported if | |
3009 | * PCI_COMMAND_INTX_DISABLE works though they actually do not properly | |
3010 | * support this feature. | |
3011 | */ | |
15856ad5 | 3012 | static void quirk_broken_intx_masking(struct pci_dev *dev) |
fbebb9fd BH |
3013 | { |
3014 | dev->broken_intx_masking = 1; | |
3015 | } | |
de509f9f JK |
3016 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CHELSIO, 0x0030, |
3017 | quirk_broken_intx_masking); | |
0bdb3b21 AW |
3018 | DECLARE_PCI_FIXUP_HEADER(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */ |
3019 | quirk_broken_intx_masking); | |
3cb30b73 AW |
3020 | /* |
3021 | * Realtek RTL8169 PCI Gigabit Ethernet Controller (rev 10) | |
3022 | * Subsystem: Realtek RTL8169/8110 Family PCI Gigabit Ethernet NIC | |
3023 | * | |
3024 | * RTL8110SC - Fails under PCI device assignment using DisINTx masking. | |
3025 | */ | |
3026 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_REALTEK, 0x8169, | |
3027 | quirk_broken_intx_masking); | |
11e42532 GS |
3028 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MELLANOX, PCI_ANY_ID, |
3029 | quirk_broken_intx_masking); | |
fbebb9fd | 3030 | |
c3e59ee4 AW |
3031 | static void quirk_no_bus_reset(struct pci_dev *dev) |
3032 | { | |
3033 | dev->dev_flags |= PCI_DEV_FLAGS_NO_BUS_RESET; | |
3034 | } | |
3035 | ||
3036 | /* | |
3037 | * Atheros AR93xx chips do not behave after a bus reset. The device will | |
3038 | * throw a Link Down error on AER-capable systems and regardless of AER, | |
3039 | * config space of the device is never accessible again and typically | |
3040 | * causes the system to hang or reset when access is attempted. | |
3041 | * http://www.spinics.net/lists/linux-pci/msg34797.html | |
3042 | */ | |
3043 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset); | |
3044 | ||
d84f3174 AW |
3045 | static void quirk_no_pm_reset(struct pci_dev *dev) |
3046 | { | |
3047 | /* | |
3048 | * We can't do a bus reset on root bus devices, but an ineffective | |
3049 | * PM reset may be better than nothing. | |
3050 | */ | |
3051 | if (!pci_is_root_bus(dev->bus)) | |
3052 | dev->dev_flags |= PCI_DEV_FLAGS_NO_PM_RESET; | |
3053 | } | |
3054 | ||
3055 | /* | |
3056 | * Some AMD/ATI GPUS (HD8570 - Oland) report that a D3hot->D0 transition | |
3057 | * causes a reset (i.e., they advertise NoSoftRst-). This transition seems | |
3058 | * to have no effect on the device: it retains the framebuffer contents and | |
3059 | * monitor sync. Advertising this support makes other layers, like VFIO, | |
3060 | * assume pci_reset_function() is viable for this device. Mark it as | |
3061 | * unavailable to skip it when testing reset methods. | |
3062 | */ | |
3063 | DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_ATI, PCI_ANY_ID, | |
3064 | PCI_CLASS_DISPLAY_VGA, 8, quirk_no_pm_reset); | |
3065 | ||
1df5172c AN |
3066 | #ifdef CONFIG_ACPI |
3067 | /* | |
3068 | * Apple: Shutdown Cactus Ridge Thunderbolt controller. | |
3069 | * | |
3070 | * On Apple hardware the Cactus Ridge Thunderbolt controller needs to be | |
3071 | * shutdown before suspend. Otherwise the native host interface (NHI) will not | |
3072 | * be present after resume if a device was plugged in before suspend. | |
3073 | * | |
3074 | * The thunderbolt controller consists of a pcie switch with downstream | |
3075 | * bridges leading to the NHI and to the tunnel pci bridges. | |
3076 | * | |
3077 | * This quirk cuts power to the whole chip. Therefore we have to apply it | |
3078 | * during suspend_noirq of the upstream bridge. | |
3079 | * | |
3080 | * Power is automagically restored before resume. No action is needed. | |
3081 | */ | |
3082 | static void quirk_apple_poweroff_thunderbolt(struct pci_dev *dev) | |
3083 | { | |
3084 | acpi_handle bridge, SXIO, SXFP, SXLV; | |
3085 | ||
3086 | if (!dmi_match(DMI_BOARD_VENDOR, "Apple Inc.")) | |
3087 | return; | |
3088 | if (pci_pcie_type(dev) != PCI_EXP_TYPE_UPSTREAM) | |
3089 | return; | |
3090 | bridge = ACPI_HANDLE(&dev->dev); | |
3091 | if (!bridge) | |
3092 | return; | |
3093 | /* | |
3094 | * SXIO and SXLV are present only on machines requiring this quirk. | |
3095 | * TB bridges in external devices might have the same device id as those | |
3096 | * on the host, but they will not have the associated ACPI methods. This | |
3097 | * implicitly checks that we are at the right bridge. | |
3098 | */ | |
3099 | if (ACPI_FAILURE(acpi_get_handle(bridge, "DSB0.NHI0.SXIO", &SXIO)) | |
3100 | || ACPI_FAILURE(acpi_get_handle(bridge, "DSB0.NHI0.SXFP", &SXFP)) | |
3101 | || ACPI_FAILURE(acpi_get_handle(bridge, "DSB0.NHI0.SXLV", &SXLV))) | |
3102 | return; | |
3103 | dev_info(&dev->dev, "quirk: cutting power to thunderbolt controller...\n"); | |
3104 | ||
3105 | /* magic sequence */ | |
3106 | acpi_execute_simple_method(SXIO, NULL, 1); | |
3107 | acpi_execute_simple_method(SXFP, NULL, 0); | |
3108 | msleep(300); | |
3109 | acpi_execute_simple_method(SXLV, NULL, 0); | |
3110 | acpi_execute_simple_method(SXIO, NULL, 0); | |
3111 | acpi_execute_simple_method(SXLV, NULL, 0); | |
3112 | } | |
3113 | DECLARE_PCI_FIXUP_SUSPEND_LATE(PCI_VENDOR_ID_INTEL, 0x1547, | |
3114 | quirk_apple_poweroff_thunderbolt); | |
3115 | ||
3116 | /* | |
3117 | * Apple: Wait for the thunderbolt controller to reestablish pci tunnels. | |
3118 | * | |
3119 | * During suspend the thunderbolt controller is reset and all pci | |
3120 | * tunnels are lost. The NHI driver will try to reestablish all tunnels | |
3121 | * during resume. We have to manually wait for the NHI since there is | |
3122 | * no parent child relationship between the NHI and the tunneled | |
3123 | * bridges. | |
3124 | */ | |
3125 | static void quirk_apple_wait_for_thunderbolt(struct pci_dev *dev) | |
3126 | { | |
3127 | struct pci_dev *sibling = NULL; | |
3128 | struct pci_dev *nhi = NULL; | |
3129 | ||
3130 | if (!dmi_match(DMI_BOARD_VENDOR, "Apple Inc.")) | |
3131 | return; | |
3132 | if (pci_pcie_type(dev) != PCI_EXP_TYPE_DOWNSTREAM) | |
3133 | return; | |
3134 | /* | |
3135 | * Find the NHI and confirm that we are a bridge on the tb host | |
3136 | * controller and not on a tb endpoint. | |
3137 | */ | |
3138 | sibling = pci_get_slot(dev->bus, 0x0); | |
3139 | if (sibling == dev) | |
3140 | goto out; /* we are the downstream bridge to the NHI */ | |
3141 | if (!sibling || !sibling->subordinate) | |
3142 | goto out; | |
3143 | nhi = pci_get_slot(sibling->subordinate, 0x0); | |
3144 | if (!nhi) | |
3145 | goto out; | |
3146 | if (nhi->vendor != PCI_VENDOR_ID_INTEL | |
3147 | || (nhi->device != 0x1547 && nhi->device != 0x156c) | |
3148 | || nhi->subsystem_vendor != 0x2222 | |
3149 | || nhi->subsystem_device != 0x1111) | |
3150 | goto out; | |
3151 | dev_info(&dev->dev, "quirk: wating for thunderbolt to reestablish pci tunnels...\n"); | |
3152 | device_pm_wait_for_dev(&dev->dev, &nhi->dev); | |
3153 | out: | |
3154 | pci_dev_put(nhi); | |
3155 | pci_dev_put(sibling); | |
3156 | } | |
3157 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, 0x1547, | |
3158 | quirk_apple_wait_for_thunderbolt); | |
3159 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, 0x156d, | |
3160 | quirk_apple_wait_for_thunderbolt); | |
3161 | #endif | |
3162 | ||
bfb0f330 JB |
3163 | static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, |
3164 | struct pci_fixup *end) | |
3d137310 | 3165 | { |
2729d5b1 MS |
3166 | ktime_t calltime; |
3167 | ||
f4ca5c6a YL |
3168 | for (; f < end; f++) |
3169 | if ((f->class == (u32) (dev->class >> f->class_shift) || | |
3170 | f->class == (u32) PCI_ANY_ID) && | |
3171 | (f->vendor == dev->vendor || | |
3172 | f->vendor == (u16) PCI_ANY_ID) && | |
3173 | (f->device == dev->device || | |
3174 | f->device == (u16) PCI_ANY_ID)) { | |
2729d5b1 MS |
3175 | calltime = fixup_debug_start(dev, f->hook); |
3176 | f->hook(dev); | |
3177 | fixup_debug_report(dev, calltime, f->hook); | |
3d137310 | 3178 | } |
3d137310 TP |
3179 | } |
3180 | ||
3181 | extern struct pci_fixup __start_pci_fixups_early[]; | |
3182 | extern struct pci_fixup __end_pci_fixups_early[]; | |
3183 | extern struct pci_fixup __start_pci_fixups_header[]; | |
3184 | extern struct pci_fixup __end_pci_fixups_header[]; | |
3185 | extern struct pci_fixup __start_pci_fixups_final[]; | |
3186 | extern struct pci_fixup __end_pci_fixups_final[]; | |
3187 | extern struct pci_fixup __start_pci_fixups_enable[]; | |
3188 | extern struct pci_fixup __end_pci_fixups_enable[]; | |
3189 | extern struct pci_fixup __start_pci_fixups_resume[]; | |
3190 | extern struct pci_fixup __end_pci_fixups_resume[]; | |
3191 | extern struct pci_fixup __start_pci_fixups_resume_early[]; | |
3192 | extern struct pci_fixup __end_pci_fixups_resume_early[]; | |
3193 | extern struct pci_fixup __start_pci_fixups_suspend[]; | |
3194 | extern struct pci_fixup __end_pci_fixups_suspend[]; | |
7d2a01b8 AN |
3195 | extern struct pci_fixup __start_pci_fixups_suspend_late[]; |
3196 | extern struct pci_fixup __end_pci_fixups_suspend_late[]; | |
3d137310 | 3197 | |
95df8b87 | 3198 | static bool pci_apply_fixup_final_quirks; |
3d137310 TP |
3199 | |
3200 | void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) | |
3201 | { | |
3202 | struct pci_fixup *start, *end; | |
3203 | ||
3c78bc61 | 3204 | switch (pass) { |
3d137310 TP |
3205 | case pci_fixup_early: |
3206 | start = __start_pci_fixups_early; | |
3207 | end = __end_pci_fixups_early; | |
3208 | break; | |
3209 | ||
3210 | case pci_fixup_header: | |
3211 | start = __start_pci_fixups_header; | |
3212 | end = __end_pci_fixups_header; | |
3213 | break; | |
3214 | ||
3215 | case pci_fixup_final: | |
95df8b87 MS |
3216 | if (!pci_apply_fixup_final_quirks) |
3217 | return; | |
3d137310 TP |
3218 | start = __start_pci_fixups_final; |
3219 | end = __end_pci_fixups_final; | |
3220 | break; | |
3221 | ||
3222 | case pci_fixup_enable: | |
3223 | start = __start_pci_fixups_enable; | |
3224 | end = __end_pci_fixups_enable; | |
3225 | break; | |
3226 | ||
3227 | case pci_fixup_resume: | |
3228 | start = __start_pci_fixups_resume; | |
3229 | end = __end_pci_fixups_resume; | |
3230 | break; | |
3231 | ||
3232 | case pci_fixup_resume_early: | |
3233 | start = __start_pci_fixups_resume_early; | |
3234 | end = __end_pci_fixups_resume_early; | |
3235 | break; | |
3236 | ||
3237 | case pci_fixup_suspend: | |
3238 | start = __start_pci_fixups_suspend; | |
3239 | end = __end_pci_fixups_suspend; | |
3240 | break; | |
3241 | ||
7d2a01b8 AN |
3242 | case pci_fixup_suspend_late: |
3243 | start = __start_pci_fixups_suspend_late; | |
3244 | end = __end_pci_fixups_suspend_late; | |
3245 | break; | |
3246 | ||
3d137310 TP |
3247 | default: |
3248 | /* stupid compiler warning, you would think with an enum... */ | |
3249 | return; | |
3250 | } | |
3251 | pci_do_fixups(dev, start, end); | |
3252 | } | |
93177a74 | 3253 | EXPORT_SYMBOL(pci_fixup_device); |
8d86fb2c | 3254 | |
735bff10 | 3255 | |
00010268 | 3256 | static int __init pci_apply_final_quirks(void) |
8d86fb2c DW |
3257 | { |
3258 | struct pci_dev *dev = NULL; | |
ac1aa47b JB |
3259 | u8 cls = 0; |
3260 | u8 tmp; | |
3261 | ||
3262 | if (pci_cache_line_size) | |
3263 | printk(KERN_DEBUG "PCI: CLS %u bytes\n", | |
3264 | pci_cache_line_size << 2); | |
8d86fb2c | 3265 | |
95df8b87 | 3266 | pci_apply_fixup_final_quirks = true; |
4e344b1c | 3267 | for_each_pci_dev(dev) { |
8d86fb2c | 3268 | pci_fixup_device(pci_fixup_final, dev); |
ac1aa47b JB |
3269 | /* |
3270 | * If arch hasn't set it explicitly yet, use the CLS | |
3271 | * value shared by all PCI devices. If there's a | |
3272 | * mismatch, fall back to the default value. | |
3273 | */ | |
3274 | if (!pci_cache_line_size) { | |
3275 | pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &tmp); | |
3276 | if (!cls) | |
3277 | cls = tmp; | |
3278 | if (!tmp || cls == tmp) | |
3279 | continue; | |
3280 | ||
227f0647 RD |
3281 | printk(KERN_DEBUG "PCI: CLS mismatch (%u != %u), using %u bytes\n", |
3282 | cls << 2, tmp << 2, | |
ac1aa47b JB |
3283 | pci_dfl_cache_line_size << 2); |
3284 | pci_cache_line_size = pci_dfl_cache_line_size; | |
3285 | } | |
3286 | } | |
735bff10 | 3287 | |
ac1aa47b JB |
3288 | if (!pci_cache_line_size) { |
3289 | printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n", | |
3290 | cls << 2, pci_dfl_cache_line_size << 2); | |
2820f333 | 3291 | pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size; |
8d86fb2c DW |
3292 | } |
3293 | ||
3294 | return 0; | |
3295 | } | |
3296 | ||
cf6f3bf7 | 3297 | fs_initcall_sync(pci_apply_final_quirks); |
b9c3b266 DC |
3298 | |
3299 | /* | |
3300 | * Followings are device-specific reset methods which can be used to | |
3301 | * reset a single function if other methods (e.g. FLR, PM D0->D3) are | |
3302 | * not available. | |
3303 | */ | |
aeb30016 DC |
3304 | static int reset_intel_generic_dev(struct pci_dev *dev, int probe) |
3305 | { | |
3306 | int pos; | |
3307 | ||
3308 | /* only implement PCI_CLASS_SERIAL_USB at present */ | |
3309 | if (dev->class == PCI_CLASS_SERIAL_USB) { | |
3310 | pos = pci_find_capability(dev, PCI_CAP_ID_VNDR); | |
3311 | if (!pos) | |
3312 | return -ENOTTY; | |
3313 | ||
3314 | if (probe) | |
3315 | return 0; | |
3316 | ||
3317 | pci_write_config_byte(dev, pos + 0x4, 1); | |
3318 | msleep(100); | |
3319 | ||
3320 | return 0; | |
3321 | } else { | |
3322 | return -ENOTTY; | |
3323 | } | |
3324 | } | |
3325 | ||
c763e7b5 DC |
3326 | static int reset_intel_82599_sfp_virtfn(struct pci_dev *dev, int probe) |
3327 | { | |
76b57c67 BH |
3328 | /* |
3329 | * http://www.intel.com/content/dam/doc/datasheet/82599-10-gbe-controller-datasheet.pdf | |
3330 | * | |
3331 | * The 82599 supports FLR on VFs, but FLR support is reported only | |
3332 | * in the PF DEVCAP (sec 9.3.10.4), not in the VF DEVCAP (sec 9.5). | |
3333 | * Therefore, we can't use pcie_flr(), which checks the VF DEVCAP. | |
3334 | */ | |
3335 | ||
c763e7b5 DC |
3336 | if (probe) |
3337 | return 0; | |
3338 | ||
4d708ab0 CL |
3339 | if (!pci_wait_for_pending_transaction(dev)) |
3340 | dev_err(&dev->dev, "transaction is not cleared; proceeding with reset anyway\n"); | |
76b57c67 | 3341 | |
76b57c67 BH |
3342 | pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR); |
3343 | ||
c763e7b5 DC |
3344 | msleep(100); |
3345 | ||
3346 | return 0; | |
3347 | } | |
3348 | ||
df558de1 XH |
3349 | #include "../gpu/drm/i915/i915_reg.h" |
3350 | #define MSG_CTL 0x45010 | |
3351 | #define NSDE_PWR_STATE 0xd0100 | |
3352 | #define IGD_OPERATION_TIMEOUT 10000 /* set timeout 10 seconds */ | |
3353 | ||
3354 | static int reset_ivb_igd(struct pci_dev *dev, int probe) | |
3355 | { | |
3356 | void __iomem *mmio_base; | |
3357 | unsigned long timeout; | |
3358 | u32 val; | |
3359 | ||
3360 | if (probe) | |
3361 | return 0; | |
3362 | ||
3363 | mmio_base = pci_iomap(dev, 0, 0); | |
3364 | if (!mmio_base) | |
3365 | return -ENOMEM; | |
3366 | ||
3367 | iowrite32(0x00000002, mmio_base + MSG_CTL); | |
3368 | ||
3369 | /* | |
3370 | * Clobbering SOUTH_CHICKEN2 register is fine only if the next | |
3371 | * driver loaded sets the right bits. However, this's a reset and | |
3372 | * the bits have been set by i915 previously, so we clobber | |
3373 | * SOUTH_CHICKEN2 register directly here. | |
3374 | */ | |
3375 | iowrite32(0x00000005, mmio_base + SOUTH_CHICKEN2); | |
3376 | ||
3377 | val = ioread32(mmio_base + PCH_PP_CONTROL) & 0xfffffffe; | |
3378 | iowrite32(val, mmio_base + PCH_PP_CONTROL); | |
3379 | ||
3380 | timeout = jiffies + msecs_to_jiffies(IGD_OPERATION_TIMEOUT); | |
3381 | do { | |
3382 | val = ioread32(mmio_base + PCH_PP_STATUS); | |
3383 | if ((val & 0xb0000000) == 0) | |
3384 | goto reset_complete; | |
3385 | msleep(10); | |
3386 | } while (time_before(jiffies, timeout)); | |
3387 | dev_warn(&dev->dev, "timeout during reset\n"); | |
3388 | ||
3389 | reset_complete: | |
3390 | iowrite32(0x00000002, mmio_base + NSDE_PWR_STATE); | |
3391 | ||
3392 | pci_iounmap(dev, mmio_base); | |
3393 | return 0; | |
3394 | } | |
3395 | ||
2c6217e0 CL |
3396 | /* |
3397 | * Device-specific reset method for Chelsio T4-based adapters. | |
3398 | */ | |
3399 | static int reset_chelsio_generic_dev(struct pci_dev *dev, int probe) | |
3400 | { | |
3401 | u16 old_command; | |
3402 | u16 msix_flags; | |
3403 | ||
3404 | /* | |
3405 | * If this isn't a Chelsio T4-based device, return -ENOTTY indicating | |
3406 | * that we have no device-specific reset method. | |
3407 | */ | |
3408 | if ((dev->device & 0xf000) != 0x4000) | |
3409 | return -ENOTTY; | |
3410 | ||
3411 | /* | |
3412 | * If this is the "probe" phase, return 0 indicating that we can | |
3413 | * reset this device. | |
3414 | */ | |
3415 | if (probe) | |
3416 | return 0; | |
3417 | ||
3418 | /* | |
3419 | * T4 can wedge if there are DMAs in flight within the chip and Bus | |
3420 | * Master has been disabled. We need to have it on till the Function | |
3421 | * Level Reset completes. (BUS_MASTER is disabled in | |
3422 | * pci_reset_function()). | |
3423 | */ | |
3424 | pci_read_config_word(dev, PCI_COMMAND, &old_command); | |
3425 | pci_write_config_word(dev, PCI_COMMAND, | |
3426 | old_command | PCI_COMMAND_MASTER); | |
3427 | ||
3428 | /* | |
3429 | * Perform the actual device function reset, saving and restoring | |
3430 | * configuration information around the reset. | |
3431 | */ | |
3432 | pci_save_state(dev); | |
3433 | ||
3434 | /* | |
3435 | * T4 also suffers a Head-Of-Line blocking problem if MSI-X interrupts | |
3436 | * are disabled when an MSI-X interrupt message needs to be delivered. | |
3437 | * So we briefly re-enable MSI-X interrupts for the duration of the | |
3438 | * FLR. The pci_restore_state() below will restore the original | |
3439 | * MSI-X state. | |
3440 | */ | |
3441 | pci_read_config_word(dev, dev->msix_cap+PCI_MSIX_FLAGS, &msix_flags); | |
3442 | if ((msix_flags & PCI_MSIX_FLAGS_ENABLE) == 0) | |
3443 | pci_write_config_word(dev, dev->msix_cap+PCI_MSIX_FLAGS, | |
3444 | msix_flags | | |
3445 | PCI_MSIX_FLAGS_ENABLE | | |
3446 | PCI_MSIX_FLAGS_MASKALL); | |
3447 | ||
3448 | /* | |
3449 | * Start of pcie_flr() code sequence. This reset code is a copy of | |
3450 | * the guts of pcie_flr() because that's not an exported function. | |
3451 | */ | |
3452 | ||
3453 | if (!pci_wait_for_pending_transaction(dev)) | |
3454 | dev_err(&dev->dev, "transaction is not cleared; proceeding with reset anyway\n"); | |
3455 | ||
3456 | pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR); | |
3457 | msleep(100); | |
3458 | ||
3459 | /* | |
3460 | * End of pcie_flr() code sequence. | |
3461 | */ | |
3462 | ||
3463 | /* | |
3464 | * Restore the configuration information (BAR values, etc.) including | |
3465 | * the original PCI Configuration Space Command word, and return | |
3466 | * success. | |
3467 | */ | |
3468 | pci_restore_state(dev); | |
3469 | pci_write_config_word(dev, PCI_COMMAND, old_command); | |
3470 | return 0; | |
3471 | } | |
3472 | ||
c763e7b5 | 3473 | #define PCI_DEVICE_ID_INTEL_82599_SFP_VF 0x10ed |
df558de1 XH |
3474 | #define PCI_DEVICE_ID_INTEL_IVB_M_VGA 0x0156 |
3475 | #define PCI_DEVICE_ID_INTEL_IVB_M2_VGA 0x0166 | |
c763e7b5 | 3476 | |
5b889bf2 | 3477 | static const struct pci_dev_reset_methods pci_dev_reset_methods[] = { |
c763e7b5 DC |
3478 | { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82599_SFP_VF, |
3479 | reset_intel_82599_sfp_virtfn }, | |
df558de1 XH |
3480 | { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_M_VGA, |
3481 | reset_ivb_igd }, | |
3482 | { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_M2_VGA, | |
3483 | reset_ivb_igd }, | |
aeb30016 DC |
3484 | { PCI_VENDOR_ID_INTEL, PCI_ANY_ID, |
3485 | reset_intel_generic_dev }, | |
2c6217e0 CL |
3486 | { PCI_VENDOR_ID_CHELSIO, PCI_ANY_ID, |
3487 | reset_chelsio_generic_dev }, | |
b9c3b266 DC |
3488 | { 0 } |
3489 | }; | |
5b889bf2 | 3490 | |
df558de1 XH |
3491 | /* |
3492 | * These device-specific reset methods are here rather than in a driver | |
3493 | * because when a host assigns a device to a guest VM, the host may need | |
3494 | * to reset the device but probably doesn't have a driver for it. | |
3495 | */ | |
5b889bf2 RW |
3496 | int pci_dev_specific_reset(struct pci_dev *dev, int probe) |
3497 | { | |
df9d1e8a | 3498 | const struct pci_dev_reset_methods *i; |
5b889bf2 RW |
3499 | |
3500 | for (i = pci_dev_reset_methods; i->reset; i++) { | |
3501 | if ((i->vendor == dev->vendor || | |
3502 | i->vendor == (u16)PCI_ANY_ID) && | |
3503 | (i->device == dev->device || | |
3504 | i->device == (u16)PCI_ANY_ID)) | |
3505 | return i->reset(dev, probe); | |
3506 | } | |
3507 | ||
3508 | return -ENOTTY; | |
3509 | } | |
12ea6cad | 3510 | |
ec637fb2 AW |
3511 | static void quirk_dma_func0_alias(struct pci_dev *dev) |
3512 | { | |
3513 | if (PCI_FUNC(dev->devfn) != 0) { | |
3514 | dev->dma_alias_devfn = PCI_DEVFN(PCI_SLOT(dev->devfn), 0); | |
3515 | dev->dev_flags |= PCI_DEV_FLAGS_DMA_ALIAS_DEVFN; | |
3516 | } | |
3517 | } | |
3518 | ||
3519 | /* | |
3520 | * https://bugzilla.redhat.com/show_bug.cgi?id=605888 | |
3521 | * | |
3522 | * Some Ricoh devices use function 0 as the PCIe requester ID for DMA. | |
3523 | */ | |
3524 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe832, quirk_dma_func0_alias); | |
3525 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe476, quirk_dma_func0_alias); | |
3526 | ||
cc346a47 AW |
3527 | static void quirk_dma_func1_alias(struct pci_dev *dev) |
3528 | { | |
3529 | if (PCI_FUNC(dev->devfn) != 1) { | |
3530 | dev->dma_alias_devfn = PCI_DEVFN(PCI_SLOT(dev->devfn), 1); | |
3531 | dev->dev_flags |= PCI_DEV_FLAGS_DMA_ALIAS_DEVFN; | |
3532 | } | |
3533 | } | |
3534 | ||
3535 | /* | |
3536 | * Marvell 88SE9123 uses function 1 as the requester ID for DMA. In some | |
3537 | * SKUs function 1 is present and is a legacy IDE controller, in other | |
3538 | * SKUs this function is not present, making this a ghost requester. | |
3539 | * https://bugzilla.kernel.org/show_bug.cgi?id=42679 | |
3540 | */ | |
3541 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9123, | |
3542 | quirk_dma_func1_alias); | |
3543 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c14 */ | |
3544 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9130, | |
3545 | quirk_dma_func1_alias); | |
3546 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c47 + c57 */ | |
3547 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9172, | |
3548 | quirk_dma_func1_alias); | |
3549 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c59 */ | |
3550 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x917a, | |
3551 | quirk_dma_func1_alias); | |
3552 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c46 */ | |
3553 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0, | |
3554 | quirk_dma_func1_alias); | |
3555 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c49 */ | |
3556 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9230, | |
3557 | quirk_dma_func1_alias); | |
c2e0fb96 JC |
3558 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TTI, 0x0642, |
3559 | quirk_dma_func1_alias); | |
cc346a47 AW |
3560 | /* https://bugs.gentoo.org/show_bug.cgi?id=497630 */ |
3561 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_JMICRON, | |
3562 | PCI_DEVICE_ID_JMICRON_JMB388_ESD, | |
3563 | quirk_dma_func1_alias); | |
3564 | ||
d3d2ab43 AW |
3565 | /* |
3566 | * Some devices DMA with the wrong devfn, not just the wrong function. | |
3567 | * quirk_fixed_dma_alias() uses this table to create fixed aliases, where | |
3568 | * the alias is "fixed" and independent of the device devfn. | |
3569 | * | |
3570 | * For example, the Adaptec 3405 is a PCIe card with an Intel 80333 I/O | |
3571 | * processor. To software, this appears as a PCIe-to-PCI/X bridge with a | |
3572 | * single device on the secondary bus. In reality, the single exposed | |
3573 | * device at 0e.0 is the Address Translation Unit (ATU) of the controller | |
3574 | * that provides a bridge to the internal bus of the I/O processor. The | |
3575 | * controller supports private devices, which can be hidden from PCI config | |
3576 | * space. In the case of the Adaptec 3405, a private device at 01.0 | |
3577 | * appears to be the DMA engine, which therefore needs to become a DMA | |
3578 | * alias for the device. | |
3579 | */ | |
3580 | static const struct pci_device_id fixed_dma_alias_tbl[] = { | |
3581 | { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x0285, | |
3582 | PCI_VENDOR_ID_ADAPTEC2, 0x02bb), /* Adaptec 3405 */ | |
3583 | .driver_data = PCI_DEVFN(1, 0) }, | |
3584 | { 0 } | |
3585 | }; | |
3586 | ||
3587 | static void quirk_fixed_dma_alias(struct pci_dev *dev) | |
3588 | { | |
3589 | const struct pci_device_id *id; | |
3590 | ||
3591 | id = pci_match_id(fixed_dma_alias_tbl, dev); | |
3592 | if (id) { | |
3593 | dev->dma_alias_devfn = id->driver_data; | |
3594 | dev->dev_flags |= PCI_DEV_FLAGS_DMA_ALIAS_DEVFN; | |
3595 | dev_info(&dev->dev, "Enabling fixed DMA alias to %02x.%d\n", | |
3596 | PCI_SLOT(dev->dma_alias_devfn), | |
3597 | PCI_FUNC(dev->dma_alias_devfn)); | |
3598 | } | |
3599 | } | |
3600 | ||
3601 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ADAPTEC2, 0x0285, quirk_fixed_dma_alias); | |
3602 | ||
ebdb51eb AW |
3603 | /* |
3604 | * A few PCIe-to-PCI bridges fail to expose a PCIe capability, resulting in | |
3605 | * using the wrong DMA alias for the device. Some of these devices can be | |
3606 | * used as either forward or reverse bridges, so we need to test whether the | |
3607 | * device is operating in the correct mode. We could probably apply this | |
3608 | * quirk to PCI_ANY_ID, but for now we'll just use known offenders. The test | |
3609 | * is for a non-root, non-PCIe bridge where the upstream device is PCIe and | |
3610 | * is not a PCIe-to-PCI bridge, then @pdev is actually a PCIe-to-PCI bridge. | |
3611 | */ | |
3612 | static void quirk_use_pcie_bridge_dma_alias(struct pci_dev *pdev) | |
3613 | { | |
3614 | if (!pci_is_root_bus(pdev->bus) && | |
3615 | pdev->hdr_type == PCI_HEADER_TYPE_BRIDGE && | |
3616 | !pci_is_pcie(pdev) && pci_is_pcie(pdev->bus->self) && | |
3617 | pci_pcie_type(pdev->bus->self) != PCI_EXP_TYPE_PCI_BRIDGE) | |
3618 | pdev->dev_flags |= PCI_DEV_FLAG_PCIE_BRIDGE_ALIAS; | |
3619 | } | |
3620 | /* ASM1083/1085, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c46 */ | |
3621 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ASMEDIA, 0x1080, | |
3622 | quirk_use_pcie_bridge_dma_alias); | |
3623 | /* Tundra 8113, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c43 */ | |
3624 | DECLARE_PCI_FIXUP_HEADER(0x10e3, 0x8113, quirk_use_pcie_bridge_dma_alias); | |
98ca50db AW |
3625 | /* ITE 8892, https://bugzilla.kernel.org/show_bug.cgi?id=73551 */ |
3626 | DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8892, quirk_use_pcie_bridge_dma_alias); | |
8ab4abbe AW |
3627 | /* Intel 82801, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c49 */ |
3628 | DECLARE_PCI_FIXUP_HEADER(0x8086, 0x244e, quirk_use_pcie_bridge_dma_alias); | |
ebdb51eb | 3629 | |
15b100df AW |
3630 | /* |
3631 | * AMD has indicated that the devices below do not support peer-to-peer | |
3632 | * in any system where they are found in the southbridge with an AMD | |
3633 | * IOMMU in the system. Multifunction devices that do not support | |
3634 | * peer-to-peer between functions can claim to support a subset of ACS. | |
3635 | * Such devices effectively enable request redirect (RR) and completion | |
3636 | * redirect (CR) since all transactions are redirected to the upstream | |
3637 | * root complex. | |
3638 | * | |
3639 | * http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/94086 | |
3640 | * http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/94102 | |
3641 | * http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/99402 | |
3642 | * | |
3643 | * 1002:4385 SBx00 SMBus Controller | |
3644 | * 1002:439c SB7x0/SB8x0/SB9x0 IDE Controller | |
3645 | * 1002:4383 SBx00 Azalia (Intel HDA) | |
3646 | * 1002:439d SB7x0/SB8x0/SB9x0 LPC host controller | |
3647 | * 1002:4384 SBx00 PCI to PCI Bridge | |
3648 | * 1002:4399 SB7x0/SB8x0/SB9x0 USB OHCI2 Controller | |
3587e625 MR |
3649 | * |
3650 | * https://bugzilla.kernel.org/show_bug.cgi?id=81841#c15 | |
3651 | * | |
3652 | * 1022:780f [AMD] FCH PCI Bridge | |
3653 | * 1022:7809 [AMD] FCH USB OHCI Controller | |
15b100df AW |
3654 | */ |
3655 | static int pci_quirk_amd_sb_acs(struct pci_dev *dev, u16 acs_flags) | |
3656 | { | |
3657 | #ifdef CONFIG_ACPI | |
3658 | struct acpi_table_header *header = NULL; | |
3659 | acpi_status status; | |
3660 | ||
3661 | /* Targeting multifunction devices on the SB (appears on root bus) */ | |
3662 | if (!dev->multifunction || !pci_is_root_bus(dev->bus)) | |
3663 | return -ENODEV; | |
3664 | ||
3665 | /* The IVRS table describes the AMD IOMMU */ | |
3666 | status = acpi_get_table("IVRS", 0, &header); | |
3667 | if (ACPI_FAILURE(status)) | |
3668 | return -ENODEV; | |
3669 | ||
3670 | /* Filter out flags not applicable to multifunction */ | |
3671 | acs_flags &= (PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_EC | PCI_ACS_DT); | |
3672 | ||
3673 | return acs_flags & ~(PCI_ACS_RR | PCI_ACS_CR) ? 0 : 1; | |
3674 | #else | |
3675 | return -ENODEV; | |
3676 | #endif | |
3677 | } | |
3678 | ||
d99321b6 AW |
3679 | /* |
3680 | * Many Intel PCH root ports do provide ACS-like features to disable peer | |
3681 | * transactions and validate bus numbers in requests, but do not provide an | |
3682 | * actual PCIe ACS capability. This is the list of device IDs known to fall | |
3683 | * into that category as provided by Intel in Red Hat bugzilla 1037684. | |
3684 | */ | |
3685 | static const u16 pci_quirk_intel_pch_acs_ids[] = { | |
3686 | /* Ibexpeak PCH */ | |
3687 | 0x3b42, 0x3b43, 0x3b44, 0x3b45, 0x3b46, 0x3b47, 0x3b48, 0x3b49, | |
3688 | 0x3b4a, 0x3b4b, 0x3b4c, 0x3b4d, 0x3b4e, 0x3b4f, 0x3b50, 0x3b51, | |
3689 | /* Cougarpoint PCH */ | |
3690 | 0x1c10, 0x1c11, 0x1c12, 0x1c13, 0x1c14, 0x1c15, 0x1c16, 0x1c17, | |
3691 | 0x1c18, 0x1c19, 0x1c1a, 0x1c1b, 0x1c1c, 0x1c1d, 0x1c1e, 0x1c1f, | |
3692 | /* Pantherpoint PCH */ | |
3693 | 0x1e10, 0x1e11, 0x1e12, 0x1e13, 0x1e14, 0x1e15, 0x1e16, 0x1e17, | |
3694 | 0x1e18, 0x1e19, 0x1e1a, 0x1e1b, 0x1e1c, 0x1e1d, 0x1e1e, 0x1e1f, | |
3695 | /* Lynxpoint-H PCH */ | |
3696 | 0x8c10, 0x8c11, 0x8c12, 0x8c13, 0x8c14, 0x8c15, 0x8c16, 0x8c17, | |
3697 | 0x8c18, 0x8c19, 0x8c1a, 0x8c1b, 0x8c1c, 0x8c1d, 0x8c1e, 0x8c1f, | |
3698 | /* Lynxpoint-LP PCH */ | |
3699 | 0x9c10, 0x9c11, 0x9c12, 0x9c13, 0x9c14, 0x9c15, 0x9c16, 0x9c17, | |
3700 | 0x9c18, 0x9c19, 0x9c1a, 0x9c1b, | |
3701 | /* Wildcat PCH */ | |
3702 | 0x9c90, 0x9c91, 0x9c92, 0x9c93, 0x9c94, 0x9c95, 0x9c96, 0x9c97, | |
3703 | 0x9c98, 0x9c99, 0x9c9a, 0x9c9b, | |
1a30fd0d AW |
3704 | /* Patsburg (X79) PCH */ |
3705 | 0x1d10, 0x1d12, 0x1d14, 0x1d16, 0x1d18, 0x1d1a, 0x1d1c, 0x1d1e, | |
d99321b6 AW |
3706 | }; |
3707 | ||
3708 | static bool pci_quirk_intel_pch_acs_match(struct pci_dev *dev) | |
3709 | { | |
3710 | int i; | |
3711 | ||
3712 | /* Filter out a few obvious non-matches first */ | |
3713 | if (!pci_is_pcie(dev) || pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT) | |
3714 | return false; | |
3715 | ||
3716 | for (i = 0; i < ARRAY_SIZE(pci_quirk_intel_pch_acs_ids); i++) | |
3717 | if (pci_quirk_intel_pch_acs_ids[i] == dev->device) | |
3718 | return true; | |
3719 | ||
3720 | return false; | |
3721 | } | |
3722 | ||
3723 | #define INTEL_PCH_ACS_FLAGS (PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_SV) | |
3724 | ||
3725 | static int pci_quirk_intel_pch_acs(struct pci_dev *dev, u16 acs_flags) | |
3726 | { | |
3727 | u16 flags = dev->dev_flags & PCI_DEV_FLAGS_ACS_ENABLED_QUIRK ? | |
3728 | INTEL_PCH_ACS_FLAGS : 0; | |
3729 | ||
3730 | if (!pci_quirk_intel_pch_acs_match(dev)) | |
3731 | return -ENOTTY; | |
3732 | ||
3733 | return acs_flags & ~flags ? 0 : 1; | |
3734 | } | |
3735 | ||
100ebb2c | 3736 | static int pci_quirk_mf_endpoint_acs(struct pci_dev *dev, u16 acs_flags) |
89b51cb5 AW |
3737 | { |
3738 | /* | |
3739 | * SV, TB, and UF are not relevant to multifunction endpoints. | |
3740 | * | |
100ebb2c AW |
3741 | * Multifunction devices are only required to implement RR, CR, and DT |
3742 | * in their ACS capability if they support peer-to-peer transactions. | |
3743 | * Devices matching this quirk have been verified by the vendor to not | |
3744 | * perform peer-to-peer with other functions, allowing us to mask out | |
3745 | * these bits as if they were unimplemented in the ACS capability. | |
89b51cb5 AW |
3746 | */ |
3747 | acs_flags &= ~(PCI_ACS_SV | PCI_ACS_TB | PCI_ACS_RR | | |
3748 | PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_DT); | |
3749 | ||
3750 | return acs_flags ? 0 : 1; | |
3751 | } | |
3752 | ||
ad805758 AW |
3753 | static const struct pci_dev_acs_enabled { |
3754 | u16 vendor; | |
3755 | u16 device; | |
3756 | int (*acs_enabled)(struct pci_dev *dev, u16 acs_flags); | |
3757 | } pci_dev_acs_enabled[] = { | |
15b100df AW |
3758 | { PCI_VENDOR_ID_ATI, 0x4385, pci_quirk_amd_sb_acs }, |
3759 | { PCI_VENDOR_ID_ATI, 0x439c, pci_quirk_amd_sb_acs }, | |
3760 | { PCI_VENDOR_ID_ATI, 0x4383, pci_quirk_amd_sb_acs }, | |
3761 | { PCI_VENDOR_ID_ATI, 0x439d, pci_quirk_amd_sb_acs }, | |
3762 | { PCI_VENDOR_ID_ATI, 0x4384, pci_quirk_amd_sb_acs }, | |
3763 | { PCI_VENDOR_ID_ATI, 0x4399, pci_quirk_amd_sb_acs }, | |
3587e625 MR |
3764 | { PCI_VENDOR_ID_AMD, 0x780f, pci_quirk_amd_sb_acs }, |
3765 | { PCI_VENDOR_ID_AMD, 0x7809, pci_quirk_amd_sb_acs }, | |
100ebb2c AW |
3766 | { PCI_VENDOR_ID_SOLARFLARE, 0x0903, pci_quirk_mf_endpoint_acs }, |
3767 | { PCI_VENDOR_ID_SOLARFLARE, 0x0923, pci_quirk_mf_endpoint_acs }, | |
3768 | { PCI_VENDOR_ID_INTEL, 0x10C6, pci_quirk_mf_endpoint_acs }, | |
3769 | { PCI_VENDOR_ID_INTEL, 0x10DB, pci_quirk_mf_endpoint_acs }, | |
3770 | { PCI_VENDOR_ID_INTEL, 0x10DD, pci_quirk_mf_endpoint_acs }, | |
3771 | { PCI_VENDOR_ID_INTEL, 0x10E1, pci_quirk_mf_endpoint_acs }, | |
3772 | { PCI_VENDOR_ID_INTEL, 0x10F1, pci_quirk_mf_endpoint_acs }, | |
3773 | { PCI_VENDOR_ID_INTEL, 0x10F7, pci_quirk_mf_endpoint_acs }, | |
3774 | { PCI_VENDOR_ID_INTEL, 0x10F8, pci_quirk_mf_endpoint_acs }, | |
3775 | { PCI_VENDOR_ID_INTEL, 0x10F9, pci_quirk_mf_endpoint_acs }, | |
3776 | { PCI_VENDOR_ID_INTEL, 0x10FA, pci_quirk_mf_endpoint_acs }, | |
3777 | { PCI_VENDOR_ID_INTEL, 0x10FB, pci_quirk_mf_endpoint_acs }, | |
3778 | { PCI_VENDOR_ID_INTEL, 0x10FC, pci_quirk_mf_endpoint_acs }, | |
3779 | { PCI_VENDOR_ID_INTEL, 0x1507, pci_quirk_mf_endpoint_acs }, | |
3780 | { PCI_VENDOR_ID_INTEL, 0x1514, pci_quirk_mf_endpoint_acs }, | |
3781 | { PCI_VENDOR_ID_INTEL, 0x151C, pci_quirk_mf_endpoint_acs }, | |
3782 | { PCI_VENDOR_ID_INTEL, 0x1529, pci_quirk_mf_endpoint_acs }, | |
3783 | { PCI_VENDOR_ID_INTEL, 0x152A, pci_quirk_mf_endpoint_acs }, | |
3784 | { PCI_VENDOR_ID_INTEL, 0x154D, pci_quirk_mf_endpoint_acs }, | |
3785 | { PCI_VENDOR_ID_INTEL, 0x154F, pci_quirk_mf_endpoint_acs }, | |
3786 | { PCI_VENDOR_ID_INTEL, 0x1551, pci_quirk_mf_endpoint_acs }, | |
3787 | { PCI_VENDOR_ID_INTEL, 0x1558, pci_quirk_mf_endpoint_acs }, | |
d99321b6 | 3788 | { PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs }, |
6a3763d1 VV |
3789 | { 0x19a2, 0x710, pci_quirk_mf_endpoint_acs }, /* Emulex BE3-R */ |
3790 | { 0x10df, 0x720, pci_quirk_mf_endpoint_acs }, /* Emulex Skyhawk-R */ | |
ad805758 AW |
3791 | { 0 } |
3792 | }; | |
3793 | ||
3794 | int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags) | |
3795 | { | |
3796 | const struct pci_dev_acs_enabled *i; | |
3797 | int ret; | |
3798 | ||
3799 | /* | |
3800 | * Allow devices that do not expose standard PCIe ACS capabilities | |
3801 | * or control to indicate their support here. Multi-function express | |
3802 | * devices which do not allow internal peer-to-peer between functions, | |
3803 | * but do not implement PCIe ACS may wish to return true here. | |
3804 | */ | |
3805 | for (i = pci_dev_acs_enabled; i->acs_enabled; i++) { | |
3806 | if ((i->vendor == dev->vendor || | |
3807 | i->vendor == (u16)PCI_ANY_ID) && | |
3808 | (i->device == dev->device || | |
3809 | i->device == (u16)PCI_ANY_ID)) { | |
3810 | ret = i->acs_enabled(dev, acs_flags); | |
3811 | if (ret >= 0) | |
3812 | return ret; | |
3813 | } | |
3814 | } | |
3815 | ||
3816 | return -ENOTTY; | |
3817 | } | |
2c744244 | 3818 | |
d99321b6 AW |
3819 | /* Config space offset of Root Complex Base Address register */ |
3820 | #define INTEL_LPC_RCBA_REG 0xf0 | |
3821 | /* 31:14 RCBA address */ | |
3822 | #define INTEL_LPC_RCBA_MASK 0xffffc000 | |
3823 | /* RCBA Enable */ | |
3824 | #define INTEL_LPC_RCBA_ENABLE (1 << 0) | |
3825 | ||
3826 | /* Backbone Scratch Pad Register */ | |
3827 | #define INTEL_BSPR_REG 0x1104 | |
3828 | /* Backbone Peer Non-Posted Disable */ | |
3829 | #define INTEL_BSPR_REG_BPNPD (1 << 8) | |
3830 | /* Backbone Peer Posted Disable */ | |
3831 | #define INTEL_BSPR_REG_BPPD (1 << 9) | |
3832 | ||
3833 | /* Upstream Peer Decode Configuration Register */ | |
3834 | #define INTEL_UPDCR_REG 0x1114 | |
3835 | /* 5:0 Peer Decode Enable bits */ | |
3836 | #define INTEL_UPDCR_REG_MASK 0x3f | |
3837 | ||
3838 | static int pci_quirk_enable_intel_lpc_acs(struct pci_dev *dev) | |
3839 | { | |
3840 | u32 rcba, bspr, updcr; | |
3841 | void __iomem *rcba_mem; | |
3842 | ||
3843 | /* | |
3844 | * Read the RCBA register from the LPC (D31:F0). PCH root ports | |
3845 | * are D28:F* and therefore get probed before LPC, thus we can't | |
3846 | * use pci_get_slot/pci_read_config_dword here. | |
3847 | */ | |
3848 | pci_bus_read_config_dword(dev->bus, PCI_DEVFN(31, 0), | |
3849 | INTEL_LPC_RCBA_REG, &rcba); | |
3850 | if (!(rcba & INTEL_LPC_RCBA_ENABLE)) | |
3851 | return -EINVAL; | |
3852 | ||
3853 | rcba_mem = ioremap_nocache(rcba & INTEL_LPC_RCBA_MASK, | |
3854 | PAGE_ALIGN(INTEL_UPDCR_REG)); | |
3855 | if (!rcba_mem) | |
3856 | return -ENOMEM; | |
3857 | ||
3858 | /* | |
3859 | * The BSPR can disallow peer cycles, but it's set by soft strap and | |
3860 | * therefore read-only. If both posted and non-posted peer cycles are | |
3861 | * disallowed, we're ok. If either are allowed, then we need to use | |
3862 | * the UPDCR to disable peer decodes for each port. This provides the | |
3863 | * PCIe ACS equivalent of PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF | |
3864 | */ | |
3865 | bspr = readl(rcba_mem + INTEL_BSPR_REG); | |
3866 | bspr &= INTEL_BSPR_REG_BPNPD | INTEL_BSPR_REG_BPPD; | |
3867 | if (bspr != (INTEL_BSPR_REG_BPNPD | INTEL_BSPR_REG_BPPD)) { | |
3868 | updcr = readl(rcba_mem + INTEL_UPDCR_REG); | |
3869 | if (updcr & INTEL_UPDCR_REG_MASK) { | |
3870 | dev_info(&dev->dev, "Disabling UPDCR peer decodes\n"); | |
3871 | updcr &= ~INTEL_UPDCR_REG_MASK; | |
3872 | writel(updcr, rcba_mem + INTEL_UPDCR_REG); | |
3873 | } | |
3874 | } | |
3875 | ||
3876 | iounmap(rcba_mem); | |
3877 | return 0; | |
3878 | } | |
3879 | ||
3880 | /* Miscellaneous Port Configuration register */ | |
3881 | #define INTEL_MPC_REG 0xd8 | |
3882 | /* MPC: Invalid Receive Bus Number Check Enable */ | |
3883 | #define INTEL_MPC_REG_IRBNCE (1 << 26) | |
3884 | ||
3885 | static void pci_quirk_enable_intel_rp_mpc_acs(struct pci_dev *dev) | |
3886 | { | |
3887 | u32 mpc; | |
3888 | ||
3889 | /* | |
3890 | * When enabled, the IRBNCE bit of the MPC register enables the | |
3891 | * equivalent of PCI ACS Source Validation (PCI_ACS_SV), which | |
3892 | * ensures that requester IDs fall within the bus number range | |
3893 | * of the bridge. Enable if not already. | |
3894 | */ | |
3895 | pci_read_config_dword(dev, INTEL_MPC_REG, &mpc); | |
3896 | if (!(mpc & INTEL_MPC_REG_IRBNCE)) { | |
3897 | dev_info(&dev->dev, "Enabling MPC IRBNCE\n"); | |
3898 | mpc |= INTEL_MPC_REG_IRBNCE; | |
3899 | pci_write_config_word(dev, INTEL_MPC_REG, mpc); | |
3900 | } | |
3901 | } | |
3902 | ||
3903 | static int pci_quirk_enable_intel_pch_acs(struct pci_dev *dev) | |
3904 | { | |
3905 | if (!pci_quirk_intel_pch_acs_match(dev)) | |
3906 | return -ENOTTY; | |
3907 | ||
3908 | if (pci_quirk_enable_intel_lpc_acs(dev)) { | |
3909 | dev_warn(&dev->dev, "Failed to enable Intel PCH ACS quirk\n"); | |
3910 | return 0; | |
3911 | } | |
3912 | ||
3913 | pci_quirk_enable_intel_rp_mpc_acs(dev); | |
3914 | ||
3915 | dev->dev_flags |= PCI_DEV_FLAGS_ACS_ENABLED_QUIRK; | |
3916 | ||
3917 | dev_info(&dev->dev, "Intel PCH root port ACS workaround enabled\n"); | |
3918 | ||
3919 | return 0; | |
3920 | } | |
3921 | ||
2c744244 AW |
3922 | static const struct pci_dev_enable_acs { |
3923 | u16 vendor; | |
3924 | u16 device; | |
3925 | int (*enable_acs)(struct pci_dev *dev); | |
3926 | } pci_dev_enable_acs[] = { | |
d99321b6 | 3927 | { PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_enable_intel_pch_acs }, |
2c744244 AW |
3928 | { 0 } |
3929 | }; | |
3930 | ||
3931 | void pci_dev_specific_enable_acs(struct pci_dev *dev) | |
3932 | { | |
3933 | const struct pci_dev_enable_acs *i; | |
3934 | int ret; | |
3935 | ||
3936 | for (i = pci_dev_enable_acs; i->enable_acs; i++) { | |
3937 | if ((i->vendor == dev->vendor || | |
3938 | i->vendor == (u16)PCI_ANY_ID) && | |
3939 | (i->device == dev->device || | |
3940 | i->device == (u16)PCI_ANY_ID)) { | |
3941 | ret = i->enable_acs(dev); | |
3942 | if (ret >= 0) | |
3943 | return; | |
3944 | } | |
3945 | } | |
3946 | } |