Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 Red Hat Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 20 | * OTHER DEALINGS IN THE SOFTWARE. |
| 21 | * |
| 22 | * Authors: Ben Skeggs |
| 23 | */ |
| 24 | |
| 25 | #include <core/object.h> |
| 26 | #include <core/device.h> |
| 27 | #include <core/subdev.h> |
| 28 | #include <core/option.h> |
| 29 | |
| 30 | #include <subdev/bios.h> |
| 31 | #include <subdev/bios/bmp.h> |
| 32 | #include <subdev/bios/bit.h> |
| 33 | |
| 34 | u8 |
| 35 | nvbios_checksum(const u8 *data, int size) |
| 36 | { |
| 37 | u8 sum = 0; |
| 38 | while (size--) |
| 39 | sum += *data++; |
| 40 | return sum; |
| 41 | } |
| 42 | |
| 43 | u16 |
| 44 | nvbios_findstr(const u8 *data, int size, const char *str, int len) |
| 45 | { |
| 46 | int i, j; |
| 47 | |
| 48 | for (i = 0; i <= (size - len); i++) { |
| 49 | for (j = 0; j < len; j++) |
| 50 | if ((char)data[i + j] != str[j]) |
| 51 | break; |
| 52 | if (j == len) |
| 53 | return i; |
| 54 | } |
| 55 | |
| 56 | return 0; |
| 57 | } |
| 58 | |
Ben Skeggs | 77145f1 | 2012-07-31 16:16:21 +1000 | [diff] [blame] | 59 | #if defined(__powerpc__) |
| 60 | static void |
| 61 | nouveau_bios_shadow_of(struct nouveau_bios *bios) |
| 62 | { |
| 63 | struct pci_dev *pdev = nv_device(bios)->pdev; |
| 64 | struct device_node *dn; |
| 65 | const u32 *data; |
Marcin Slusarz | fced4b2 | 2012-11-11 19:57:35 +0100 | [diff] [blame] | 66 | int size; |
Ben Skeggs | 77145f1 | 2012-07-31 16:16:21 +1000 | [diff] [blame] | 67 | |
| 68 | dn = pci_device_to_OF_node(pdev); |
| 69 | if (!dn) { |
| 70 | nv_info(bios, "Unable to get the OF node\n"); |
| 71 | return; |
| 72 | } |
| 73 | |
| 74 | data = of_get_property(dn, "NVDA,BMP", &size); |
Marcin Slusarz | 00e4845 | 2012-10-22 09:59:20 +1000 | [diff] [blame] | 75 | if (data && size) { |
Ben Skeggs | 77145f1 | 2012-07-31 16:16:21 +1000 | [diff] [blame] | 76 | bios->size = size; |
| 77 | bios->data = kmalloc(bios->size, GFP_KERNEL); |
| 78 | if (bios->data) |
| 79 | memcpy(bios->data, data, size); |
| 80 | } |
| 81 | } |
| 82 | #endif |
| 83 | |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 84 | static void |
| 85 | nouveau_bios_shadow_pramin(struct nouveau_bios *bios) |
| 86 | { |
| 87 | struct nouveau_device *device = nv_device(bios); |
Maarten Lankhorst | 791dc143 | 2013-06-27 17:35:53 +1000 | [diff] [blame] | 88 | u64 addr = 0; |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 89 | u32 bar0 = 0; |
| 90 | int i; |
| 91 | |
| 92 | if (device->card_type >= NV_50) { |
Ben Skeggs | 13a49a1 | 2014-02-24 12:30:06 +1000 | [diff] [blame^] | 93 | if (device->card_type >= NV_C0 && device->card_type < GM100) { |
| 94 | if (nv_rd32(bios, 0x022500) & 0x00000001) |
| 95 | return; |
| 96 | } else |
| 97 | if (device->card_type >= GM100) { |
| 98 | if (nv_rd32(bios, 0x021c04) & 0x00000001) |
| 99 | return; |
| 100 | } |
Maarten Lankhorst | 791dc143 | 2013-06-27 17:35:53 +1000 | [diff] [blame] | 101 | |
Ben Skeggs | 13a49a1 | 2014-02-24 12:30:06 +1000 | [diff] [blame^] | 102 | addr = (u64)(nv_rd32(bios, 0x619f04) & 0xffffff00) << 8; |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 103 | if (!addr) { |
| 104 | addr = (u64)nv_rd32(bios, 0x001700) << 16; |
| 105 | addr += 0xf0000; |
| 106 | } |
| 107 | |
| 108 | bar0 = nv_mask(bios, 0x001700, 0xffffffff, addr >> 16); |
| 109 | } |
| 110 | |
| 111 | /* bail if no rom signature */ |
| 112 | if (nv_rd08(bios, 0x700000) != 0x55 || |
| 113 | nv_rd08(bios, 0x700001) != 0xaa) |
| 114 | goto out; |
| 115 | |
| 116 | bios->size = nv_rd08(bios, 0x700002) * 512; |
Marcin Slusarz | 00e4845 | 2012-10-22 09:59:20 +1000 | [diff] [blame] | 117 | if (!bios->size) |
| 118 | goto out; |
| 119 | |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 120 | bios->data = kmalloc(bios->size, GFP_KERNEL); |
| 121 | if (bios->data) { |
| 122 | for (i = 0; i < bios->size; i++) |
| 123 | nv_wo08(bios, i, nv_rd08(bios, 0x700000 + i)); |
| 124 | } |
| 125 | |
| 126 | out: |
| 127 | if (device->card_type >= NV_50) |
| 128 | nv_wr32(bios, 0x001700, bar0); |
| 129 | } |
| 130 | |
| 131 | static void |
| 132 | nouveau_bios_shadow_prom(struct nouveau_bios *bios) |
| 133 | { |
| 134 | struct nouveau_device *device = nv_device(bios); |
| 135 | u32 pcireg, access; |
| 136 | u16 pcir; |
| 137 | int i; |
| 138 | |
Ilia Mirkin | 5ac607e | 2014-02-05 14:33:04 -0500 | [diff] [blame] | 139 | /* there is no prom on nv4x IGP's */ |
| 140 | if (device->card_type == NV_40 && device->chipset >= 0x4c) |
| 141 | return; |
| 142 | |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 143 | /* enable access to rom */ |
| 144 | if (device->card_type >= NV_50) |
| 145 | pcireg = 0x088050; |
| 146 | else |
| 147 | pcireg = 0x001850; |
| 148 | access = nv_mask(bios, pcireg, 0x00000001, 0x00000000); |
| 149 | |
| 150 | /* bail if no rom signature, with a workaround for a PROM reading |
| 151 | * issue on some chipsets. the first read after a period of |
| 152 | * inactivity returns the wrong result, so retry the first header |
| 153 | * byte a few times before giving up as a workaround |
| 154 | */ |
| 155 | i = 16; |
| 156 | do { |
| 157 | if (nv_rd08(bios, 0x300000) == 0x55) |
| 158 | break; |
| 159 | } while (i--); |
| 160 | |
| 161 | if (!i || nv_rd08(bios, 0x300001) != 0xaa) |
| 162 | goto out; |
| 163 | |
| 164 | /* additional check (see note below) - read PCI record header */ |
| 165 | pcir = nv_rd08(bios, 0x300018) | |
| 166 | nv_rd08(bios, 0x300019) << 8; |
| 167 | if (nv_rd08(bios, 0x300000 + pcir) != 'P' || |
| 168 | nv_rd08(bios, 0x300001 + pcir) != 'C' || |
| 169 | nv_rd08(bios, 0x300002 + pcir) != 'I' || |
| 170 | nv_rd08(bios, 0x300003 + pcir) != 'R') |
| 171 | goto out; |
| 172 | |
| 173 | /* read entire bios image to system memory */ |
| 174 | bios->size = nv_rd08(bios, 0x300002) * 512; |
Marcin Slusarz | 00e4845 | 2012-10-22 09:59:20 +1000 | [diff] [blame] | 175 | if (!bios->size) |
| 176 | goto out; |
| 177 | |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 178 | bios->data = kmalloc(bios->size, GFP_KERNEL); |
| 179 | if (bios->data) { |
| 180 | for (i = 0; i < bios->size; i++) |
| 181 | nv_wo08(bios, i, nv_rd08(bios, 0x300000 + i)); |
| 182 | } |
| 183 | |
| 184 | out: |
| 185 | /* disable access to rom */ |
| 186 | nv_wr32(bios, pcireg, access); |
| 187 | } |
| 188 | |
Ben Hutchings | a91ed42 | 2013-02-20 02:57:32 +0000 | [diff] [blame] | 189 | #if defined(CONFIG_ACPI) && defined(CONFIG_X86) |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 190 | int nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len); |
| 191 | bool nouveau_acpi_rom_supported(struct pci_dev *pdev); |
| 192 | #else |
| 193 | static inline bool |
| 194 | nouveau_acpi_rom_supported(struct pci_dev *pdev) { |
| 195 | return false; |
| 196 | } |
| 197 | |
| 198 | static inline int |
| 199 | nouveau_acpi_get_bios_chunk(uint8_t *bios, int offset, int len) { |
| 200 | return -EINVAL; |
| 201 | } |
| 202 | #endif |
| 203 | |
| 204 | static void |
| 205 | nouveau_bios_shadow_acpi(struct nouveau_bios *bios) |
| 206 | { |
| 207 | struct pci_dev *pdev = nv_device(bios)->pdev; |
Ben Skeggs | 9a334cd | 2012-10-09 12:21:36 +1000 | [diff] [blame] | 208 | int ret, cnt, i; |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 209 | |
Martin Peres | 90e2889 | 2012-10-20 11:03:36 +0200 | [diff] [blame] | 210 | if (!nouveau_acpi_rom_supported(pdev)) { |
| 211 | bios->data = NULL; |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 212 | return; |
Martin Peres | 90e2889 | 2012-10-20 11:03:36 +0200 | [diff] [blame] | 213 | } |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 214 | |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 215 | bios->size = 0; |
Ben Skeggs | d1626a9 | 2012-10-22 10:08:19 +1000 | [diff] [blame] | 216 | bios->data = kmalloc(4096, GFP_KERNEL); |
| 217 | if (bios->data) { |
| 218 | if (nouveau_acpi_get_bios_chunk(bios->data, 0, 4096) == 4096) |
| 219 | bios->size = bios->data[2] * 512; |
| 220 | kfree(bios->data); |
| 221 | } |
| 222 | |
Marcin Slusarz | 00e4845 | 2012-10-22 09:59:20 +1000 | [diff] [blame] | 223 | if (!bios->size) |
| 224 | return; |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 225 | |
Ben Skeggs | 9a334cd | 2012-10-09 12:21:36 +1000 | [diff] [blame] | 226 | bios->data = kmalloc(bios->size, GFP_KERNEL); |
Ben Skeggs | de2b8b8 | 2012-10-11 22:45:15 -0400 | [diff] [blame] | 227 | if (bios->data) { |
| 228 | /* disobey the acpi spec - much faster on at least w530 ... */ |
| 229 | ret = nouveau_acpi_get_bios_chunk(bios->data, 0, bios->size); |
| 230 | if (ret != bios->size || |
| 231 | nvbios_checksum(bios->data, bios->size)) { |
| 232 | /* ... that didn't work, ok, i'll be good now */ |
| 233 | for (i = 0; i < bios->size; i += cnt) { |
| 234 | cnt = min((bios->size - i), (u32)4096); |
| 235 | ret = nouveau_acpi_get_bios_chunk(bios->data, i, cnt); |
| 236 | if (ret != cnt) |
| 237 | break; |
| 238 | } |
| 239 | } |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 240 | } |
| 241 | } |
| 242 | |
| 243 | static void |
| 244 | nouveau_bios_shadow_pci(struct nouveau_bios *bios) |
| 245 | { |
| 246 | struct pci_dev *pdev = nv_device(bios)->pdev; |
| 247 | size_t size; |
| 248 | |
| 249 | if (!pci_enable_rom(pdev)) { |
| 250 | void __iomem *rom = pci_map_rom(pdev, &size); |
| 251 | if (rom && size) { |
| 252 | bios->data = kmalloc(size, GFP_KERNEL); |
| 253 | if (bios->data) { |
| 254 | memcpy_fromio(bios->data, rom, size); |
| 255 | bios->size = size; |
| 256 | } |
| 257 | } |
| 258 | if (rom) |
| 259 | pci_unmap_rom(pdev, rom); |
| 260 | |
| 261 | pci_disable_rom(pdev); |
| 262 | } |
| 263 | } |
| 264 | |
Matthew Garrett | 121cdf0 | 2013-03-26 17:25:55 -0400 | [diff] [blame] | 265 | static void |
| 266 | nouveau_bios_shadow_platform(struct nouveau_bios *bios) |
| 267 | { |
| 268 | struct pci_dev *pdev = nv_device(bios)->pdev; |
| 269 | size_t size; |
| 270 | |
| 271 | void __iomem *rom = pci_platform_rom(pdev, &size); |
| 272 | if (rom && size) { |
| 273 | bios->data = kmalloc(size, GFP_KERNEL); |
| 274 | if (bios->data) { |
| 275 | memcpy_fromio(bios->data, rom, size); |
| 276 | bios->size = size; |
| 277 | } |
| 278 | } |
| 279 | } |
| 280 | |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 281 | static int |
| 282 | nouveau_bios_score(struct nouveau_bios *bios, const bool writeable) |
| 283 | { |
Marcin Slusarz | 00e4845 | 2012-10-22 09:59:20 +1000 | [diff] [blame] | 284 | if (bios->size < 3 || !bios->data || bios->data[0] != 0x55 || |
| 285 | bios->data[1] != 0xAA) { |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 286 | nv_info(bios, "... signature not found\n"); |
| 287 | return 0; |
| 288 | } |
| 289 | |
Marcin Slusarz | 00e4845 | 2012-10-22 09:59:20 +1000 | [diff] [blame] | 290 | if (nvbios_checksum(bios->data, |
| 291 | min_t(u32, bios->data[2] * 512, bios->size))) { |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 292 | nv_info(bios, "... checksum invalid\n"); |
| 293 | /* if a ro image is somewhat bad, it's probably all rubbish */ |
| 294 | return writeable ? 2 : 1; |
| 295 | } |
| 296 | |
| 297 | nv_info(bios, "... appears to be valid\n"); |
| 298 | return 3; |
| 299 | } |
| 300 | |
| 301 | struct methods { |
Ben Skeggs | 77145f1 | 2012-07-31 16:16:21 +1000 | [diff] [blame] | 302 | const char desc[16]; |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 303 | void (*shadow)(struct nouveau_bios *); |
| 304 | const bool rw; |
| 305 | int score; |
| 306 | u32 size; |
| 307 | u8 *data; |
| 308 | }; |
| 309 | |
| 310 | static int |
| 311 | nouveau_bios_shadow(struct nouveau_bios *bios) |
| 312 | { |
| 313 | struct methods shadow_methods[] = { |
Ben Skeggs | 77145f1 | 2012-07-31 16:16:21 +1000 | [diff] [blame] | 314 | #if defined(__powerpc__) |
| 315 | { "OpenFirmware", nouveau_bios_shadow_of, true, 0, 0, NULL }, |
| 316 | #endif |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 317 | { "PRAMIN", nouveau_bios_shadow_pramin, true, 0, 0, NULL }, |
| 318 | { "PROM", nouveau_bios_shadow_prom, false, 0, 0, NULL }, |
| 319 | { "ACPI", nouveau_bios_shadow_acpi, true, 0, 0, NULL }, |
| 320 | { "PCIROM", nouveau_bios_shadow_pci, true, 0, 0, NULL }, |
Matthew Garrett | 121cdf0 | 2013-03-26 17:25:55 -0400 | [diff] [blame] | 321 | { "PLATFORM", nouveau_bios_shadow_platform, true, 0, 0, NULL }, |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 322 | {} |
| 323 | }; |
| 324 | struct methods *mthd, *best; |
| 325 | const struct firmware *fw; |
| 326 | const char *optarg; |
| 327 | int optlen, ret; |
| 328 | char *source; |
| 329 | |
| 330 | optarg = nouveau_stropt(nv_device(bios)->cfgopt, "NvBios", &optlen); |
| 331 | source = optarg ? kstrndup(optarg, optlen, GFP_KERNEL) : NULL; |
| 332 | if (source) { |
| 333 | /* try to match one of the built-in methods */ |
| 334 | mthd = shadow_methods; |
| 335 | do { |
| 336 | if (strcasecmp(source, mthd->desc)) |
| 337 | continue; |
| 338 | nv_info(bios, "source: %s\n", mthd->desc); |
| 339 | |
| 340 | mthd->shadow(bios); |
| 341 | mthd->score = nouveau_bios_score(bios, mthd->rw); |
| 342 | if (mthd->score) { |
| 343 | kfree(source); |
| 344 | return 0; |
| 345 | } |
| 346 | } while ((++mthd)->shadow); |
| 347 | |
| 348 | /* attempt to load firmware image */ |
| 349 | ret = request_firmware(&fw, source, &nv_device(bios)->pdev->dev); |
| 350 | if (ret == 0) { |
| 351 | bios->size = fw->size; |
| 352 | bios->data = kmemdup(fw->data, fw->size, GFP_KERNEL); |
| 353 | release_firmware(fw); |
| 354 | |
| 355 | nv_info(bios, "image: %s\n", source); |
| 356 | if (nouveau_bios_score(bios, 1)) { |
| 357 | kfree(source); |
| 358 | return 0; |
| 359 | } |
| 360 | |
| 361 | kfree(bios->data); |
| 362 | bios->data = NULL; |
| 363 | } |
| 364 | |
| 365 | nv_error(bios, "source \'%s\' invalid\n", source); |
| 366 | kfree(source); |
| 367 | } |
| 368 | |
| 369 | mthd = shadow_methods; |
| 370 | do { |
| 371 | nv_info(bios, "checking %s for image...\n", mthd->desc); |
| 372 | mthd->shadow(bios); |
| 373 | mthd->score = nouveau_bios_score(bios, mthd->rw); |
| 374 | mthd->size = bios->size; |
| 375 | mthd->data = bios->data; |
| 376 | bios->data = NULL; |
| 377 | } while (mthd->score != 3 && (++mthd)->shadow); |
| 378 | |
| 379 | mthd = shadow_methods; |
| 380 | best = mthd; |
| 381 | do { |
| 382 | if (mthd->score > best->score) { |
| 383 | kfree(best->data); |
| 384 | best = mthd; |
| 385 | } |
| 386 | } while ((++mthd)->shadow); |
| 387 | |
| 388 | if (best->score) { |
| 389 | nv_info(bios, "using image from %s\n", best->desc); |
| 390 | bios->size = best->size; |
| 391 | bios->data = best->data; |
| 392 | return 0; |
| 393 | } |
| 394 | |
| 395 | nv_error(bios, "unable to locate usable image\n"); |
| 396 | return -EINVAL; |
| 397 | } |
| 398 | |
| 399 | static u8 |
Ben Skeggs | 0a32241 | 2012-11-17 21:51:30 +1000 | [diff] [blame] | 400 | nouveau_bios_rd08(struct nouveau_object *object, u64 addr) |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 401 | { |
| 402 | struct nouveau_bios *bios = (void *)object; |
| 403 | return bios->data[addr]; |
| 404 | } |
| 405 | |
| 406 | static u16 |
Ben Skeggs | 0a32241 | 2012-11-17 21:51:30 +1000 | [diff] [blame] | 407 | nouveau_bios_rd16(struct nouveau_object *object, u64 addr) |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 408 | { |
| 409 | struct nouveau_bios *bios = (void *)object; |
| 410 | return get_unaligned_le16(&bios->data[addr]); |
| 411 | } |
| 412 | |
| 413 | static u32 |
Ben Skeggs | 0a32241 | 2012-11-17 21:51:30 +1000 | [diff] [blame] | 414 | nouveau_bios_rd32(struct nouveau_object *object, u64 addr) |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 415 | { |
| 416 | struct nouveau_bios *bios = (void *)object; |
| 417 | return get_unaligned_le32(&bios->data[addr]); |
| 418 | } |
| 419 | |
| 420 | static void |
Ben Skeggs | 0a32241 | 2012-11-17 21:51:30 +1000 | [diff] [blame] | 421 | nouveau_bios_wr08(struct nouveau_object *object, u64 addr, u8 data) |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 422 | { |
| 423 | struct nouveau_bios *bios = (void *)object; |
| 424 | bios->data[addr] = data; |
| 425 | } |
| 426 | |
| 427 | static void |
Ben Skeggs | 0a32241 | 2012-11-17 21:51:30 +1000 | [diff] [blame] | 428 | nouveau_bios_wr16(struct nouveau_object *object, u64 addr, u16 data) |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 429 | { |
| 430 | struct nouveau_bios *bios = (void *)object; |
| 431 | put_unaligned_le16(data, &bios->data[addr]); |
| 432 | } |
| 433 | |
| 434 | static void |
Ben Skeggs | 0a32241 | 2012-11-17 21:51:30 +1000 | [diff] [blame] | 435 | nouveau_bios_wr32(struct nouveau_object *object, u64 addr, u32 data) |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 436 | { |
| 437 | struct nouveau_bios *bios = (void *)object; |
| 438 | put_unaligned_le32(data, &bios->data[addr]); |
| 439 | } |
| 440 | |
| 441 | static int |
| 442 | nouveau_bios_ctor(struct nouveau_object *parent, |
| 443 | struct nouveau_object *engine, |
| 444 | struct nouveau_oclass *oclass, void *data, u32 size, |
| 445 | struct nouveau_object **pobject) |
| 446 | { |
| 447 | struct nouveau_bios *bios; |
| 448 | struct bit_entry bit_i; |
| 449 | int ret; |
| 450 | |
| 451 | ret = nouveau_subdev_create(parent, engine, oclass, 0, |
| 452 | "VBIOS", "bios", &bios); |
| 453 | *pobject = nv_object(bios); |
| 454 | if (ret) |
| 455 | return ret; |
| 456 | |
| 457 | ret = nouveau_bios_shadow(bios); |
| 458 | if (ret) |
| 459 | return ret; |
| 460 | |
| 461 | /* detect type of vbios we're dealing with */ |
| 462 | bios->bmp_offset = nvbios_findstr(bios->data, bios->size, |
| 463 | "\xff\x7f""NV\0", 5); |
| 464 | if (bios->bmp_offset) { |
| 465 | nv_info(bios, "BMP version %x.%x\n", |
| 466 | bmp_version(bios) >> 8, |
| 467 | bmp_version(bios) & 0xff); |
| 468 | } |
| 469 | |
| 470 | bios->bit_offset = nvbios_findstr(bios->data, bios->size, |
| 471 | "\xff\xb8""BIT", 5); |
| 472 | if (bios->bit_offset) |
| 473 | nv_info(bios, "BIT signature found\n"); |
| 474 | |
| 475 | /* determine the vbios version number */ |
| 476 | if (!bit_entry(bios, 'i', &bit_i) && bit_i.length >= 4) { |
| 477 | bios->version.major = nv_ro08(bios, bit_i.offset + 3); |
| 478 | bios->version.chip = nv_ro08(bios, bit_i.offset + 2); |
| 479 | bios->version.minor = nv_ro08(bios, bit_i.offset + 1); |
| 480 | bios->version.micro = nv_ro08(bios, bit_i.offset + 0); |
Ben Skeggs | 0dd660d | 2012-12-11 12:49:18 +1000 | [diff] [blame] | 481 | bios->version.patch = nv_ro08(bios, bit_i.offset + 4); |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 482 | } else |
| 483 | if (bmp_version(bios)) { |
| 484 | bios->version.major = nv_ro08(bios, bios->bmp_offset + 13); |
| 485 | bios->version.chip = nv_ro08(bios, bios->bmp_offset + 12); |
| 486 | bios->version.minor = nv_ro08(bios, bios->bmp_offset + 11); |
| 487 | bios->version.micro = nv_ro08(bios, bios->bmp_offset + 10); |
| 488 | } |
| 489 | |
Ben Skeggs | 0dd660d | 2012-12-11 12:49:18 +1000 | [diff] [blame] | 490 | nv_info(bios, "version %02x.%02x.%02x.%02x.%02x\n", |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 491 | bios->version.major, bios->version.chip, |
Ben Skeggs | 0dd660d | 2012-12-11 12:49:18 +1000 | [diff] [blame] | 492 | bios->version.minor, bios->version.micro, bios->version.patch); |
Ben Skeggs | 70c0f26 | 2012-07-10 10:49:22 +1000 | [diff] [blame] | 493 | |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | static void |
| 498 | nouveau_bios_dtor(struct nouveau_object *object) |
| 499 | { |
| 500 | struct nouveau_bios *bios = (void *)object; |
| 501 | kfree(bios->data); |
| 502 | nouveau_subdev_destroy(&bios->base); |
| 503 | } |
| 504 | |
| 505 | static int |
| 506 | nouveau_bios_init(struct nouveau_object *object) |
| 507 | { |
| 508 | struct nouveau_bios *bios = (void *)object; |
| 509 | return nouveau_subdev_init(&bios->base); |
| 510 | } |
| 511 | |
| 512 | static int |
| 513 | nouveau_bios_fini(struct nouveau_object *object, bool suspend) |
| 514 | { |
| 515 | struct nouveau_bios *bios = (void *)object; |
| 516 | return nouveau_subdev_fini(&bios->base, suspend); |
| 517 | } |
| 518 | |
| 519 | struct nouveau_oclass |
| 520 | nouveau_bios_oclass = { |
| 521 | .handle = NV_SUBDEV(VBIOS, 0x00), |
| 522 | .ofuncs = &(struct nouveau_ofuncs) { |
| 523 | .ctor = nouveau_bios_ctor, |
| 524 | .dtor = nouveau_bios_dtor, |
| 525 | .init = nouveau_bios_init, |
| 526 | .fini = nouveau_bios_fini, |
| 527 | .rd08 = nouveau_bios_rd08, |
| 528 | .rd16 = nouveau_bios_rd16, |
| 529 | .rd32 = nouveau_bios_rd32, |
| 530 | .wr08 = nouveau_bios_wr08, |
| 531 | .wr16 = nouveau_bios_wr16, |
| 532 | .wr32 = nouveau_bios_wr32, |
| 533 | }, |
| 534 | }; |