1 /* 2 * Copyright 2005-2006 Erik Waling 3 * Copyright 2006 Stephane Marchesin 4 * Copyright 2007-2009 Stuart Bennett 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 21 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 25 #include <subdev/bios.h> 26 27 #include <drm/drmP.h> 28 29 #include "nouveau_drm.h" 30 #include "nouveau_reg.h" 31 #include "nouveau_hw.h" 32 #include "nouveau_encoder.h" 33 34 #include <linux/io-mapping.h> 35 #include <linux/firmware.h> 36 37 /* these defines are made up */ 38 #define NV_CIO_CRE_44_HEADA 0x0 39 #define NV_CIO_CRE_44_HEADB 0x3 40 #define FEATURE_MOBILE 0x10 /* also FEATURE_QUADRO for BMP */ 41 42 #define EDID1_LEN 128 43 44 #define BIOSLOG(sip, fmt, arg...) NV_DEBUG(sip->dev, fmt, ##arg) 45 #define LOG_OLD_VALUE(x) 46 47 struct init_exec { 48 bool execute; 49 bool repeat; 50 }; 51 52 static bool nv_cksum(const uint8_t *data, unsigned int length) 53 { 54 /* 55 * There's a few checksums in the BIOS, so here's a generic checking 56 * function. 57 */ 58 int i; 59 uint8_t sum = 0; 60 61 for (i = 0; i < length; i++) 62 sum += data[i]; 63 64 if (sum) 65 return true; 66 67 return false; 68 } 69 70 static uint16_t clkcmptable(struct nvbios *bios, uint16_t clktable, int pxclk) 71 { 72 int compare_record_len, i = 0; 73 uint16_t compareclk, scriptptr = 0; 74 75 if (bios->major_version < 5) /* pre BIT */ 76 compare_record_len = 3; 77 else 78 compare_record_len = 4; 79 80 do { 81 compareclk = ROM16(bios->data[clktable + compare_record_len * i]); 82 if (pxclk >= compareclk * 10) { 83 if (bios->major_version < 5) { 84 uint8_t tmdssub = bios->data[clktable + 2 + compare_record_len * i]; 85 scriptptr = ROM16(bios->data[bios->init_script_tbls_ptr + tmdssub * 2]); 86 } else 87 scriptptr = ROM16(bios->data[clktable + 2 + compare_record_len * i]); 88 break; 89 } 90 i++; 91 } while (compareclk); 92 93 return scriptptr; 94 } 95 96 static void 97 run_digital_op_script(struct drm_device *dev, uint16_t scriptptr, 98 struct dcb_output *dcbent, int head, bool dl) 99 { 100 struct nouveau_drm *drm = nouveau_drm(dev); 101 102 NV_INFO(drm, "0x%04X: Parsing digital output script table\n", 103 scriptptr); 104 NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_44, head ? NV_CIO_CRE_44_HEADB : 105 NV_CIO_CRE_44_HEADA); 106 nouveau_bios_run_init_table(dev, scriptptr, dcbent, head); 107 108 nv04_dfp_bind_head(dev, dcbent, head, dl); 109 } 110 111 static int call_lvds_manufacturer_script(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script) 112 { 113 struct nouveau_drm *drm = nouveau_drm(dev); 114 struct nvbios *bios = &drm->vbios; 115 uint8_t sub = bios->data[bios->fp.xlated_entry + script] + (bios->fp.link_c_increment && dcbent->or & DCB_OUTPUT_C ? 1 : 0); 116 uint16_t scriptofs = ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]); 117 118 if (!bios->fp.xlated_entry || !sub || !scriptofs) 119 return -EINVAL; 120 121 run_digital_op_script(dev, scriptofs, dcbent, head, bios->fp.dual_link); 122 123 if (script == LVDS_PANEL_OFF) { 124 /* off-on delay in ms */ 125 mdelay(ROM16(bios->data[bios->fp.xlated_entry + 7])); 126 } 127 #ifdef __powerpc__ 128 /* Powerbook specific quirks */ 129 if (script == LVDS_RESET && 130 (dev->pci_device == 0x0179 || dev->pci_device == 0x0189 || 131 dev->pci_device == 0x0329)) 132 nv_write_tmds(dev, dcbent->or, 0, 0x02, 0x72); 133 #endif 134 135 return 0; 136 } 137 138 static int run_lvds_table(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script, int pxclk) 139 { 140 /* 141 * The BIT LVDS table's header has the information to setup the 142 * necessary registers. Following the standard 4 byte header are: 143 * A bitmask byte and a dual-link transition pxclk value for use in 144 * selecting the init script when not using straps; 4 script pointers 145 * for panel power, selected by output and on/off; and 8 table pointers 146 * for panel init, the needed one determined by output, and bits in the 147 * conf byte. These tables are similar to the TMDS tables, consisting 148 * of a list of pxclks and script pointers. 149 */ 150 struct nouveau_drm *drm = nouveau_drm(dev); 151 struct nvbios *bios = &drm->vbios; 152 unsigned int outputset = (dcbent->or == 4) ? 1 : 0; 153 uint16_t scriptptr = 0, clktable; 154 155 /* 156 * For now we assume version 3.0 table - g80 support will need some 157 * changes 158 */ 159 160 switch (script) { 161 case LVDS_INIT: 162 return -ENOSYS; 163 case LVDS_BACKLIGHT_ON: 164 case LVDS_PANEL_ON: 165 scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 7 + outputset * 2]); 166 break; 167 case LVDS_BACKLIGHT_OFF: 168 case LVDS_PANEL_OFF: 169 scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 11 + outputset * 2]); 170 break; 171 case LVDS_RESET: 172 clktable = bios->fp.lvdsmanufacturerpointer + 15; 173 if (dcbent->or == 4) 174 clktable += 8; 175 176 if (dcbent->lvdsconf.use_straps_for_mode) { 177 if (bios->fp.dual_link) 178 clktable += 4; 179 if (bios->fp.if_is_24bit) 180 clktable += 2; 181 } else { 182 /* using EDID */ 183 int cmpval_24bit = (dcbent->or == 4) ? 4 : 1; 184 185 if (bios->fp.dual_link) { 186 clktable += 4; 187 cmpval_24bit <<= 1; 188 } 189 190 if (bios->fp.strapless_is_24bit & cmpval_24bit) 191 clktable += 2; 192 } 193 194 clktable = ROM16(bios->data[clktable]); 195 if (!clktable) { 196 NV_ERROR(drm, "Pixel clock comparison table not found\n"); 197 return -ENOENT; 198 } 199 scriptptr = clkcmptable(bios, clktable, pxclk); 200 } 201 202 if (!scriptptr) { 203 NV_ERROR(drm, "LVDS output init script not found\n"); 204 return -ENOENT; 205 } 206 run_digital_op_script(dev, scriptptr, dcbent, head, bios->fp.dual_link); 207 208 return 0; 209 } 210 211 int call_lvds_script(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script, int pxclk) 212 { 213 /* 214 * LVDS operations are multiplexed in an effort to present a single API 215 * which works with two vastly differing underlying structures. 216 * This acts as the demux 217 */ 218 219 struct nouveau_drm *drm = nouveau_drm(dev); 220 struct nouveau_device *device = nv_device(drm->device); 221 struct nvbios *bios = &drm->vbios; 222 uint8_t lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer]; 223 uint32_t sel_clk_binding, sel_clk; 224 int ret; 225 226 if (bios->fp.last_script_invoc == (script << 1 | head) || !lvds_ver || 227 (lvds_ver >= 0x30 && script == LVDS_INIT)) 228 return 0; 229 230 if (!bios->fp.lvds_init_run) { 231 bios->fp.lvds_init_run = true; 232 call_lvds_script(dev, dcbent, head, LVDS_INIT, pxclk); 233 } 234 235 if (script == LVDS_PANEL_ON && bios->fp.reset_after_pclk_change) 236 call_lvds_script(dev, dcbent, head, LVDS_RESET, pxclk); 237 if (script == LVDS_RESET && bios->fp.power_off_for_reset) 238 call_lvds_script(dev, dcbent, head, LVDS_PANEL_OFF, pxclk); 239 240 NV_INFO(drm, "Calling LVDS script %d:\n", script); 241 242 /* don't let script change pll->head binding */ 243 sel_clk_binding = nv_rd32(device, NV_PRAMDAC_SEL_CLK) & 0x50000; 244 245 if (lvds_ver < 0x30) 246 ret = call_lvds_manufacturer_script(dev, dcbent, head, script); 247 else 248 ret = run_lvds_table(dev, dcbent, head, script, pxclk); 249 250 bios->fp.last_script_invoc = (script << 1 | head); 251 252 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000; 253 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding); 254 /* some scripts set a value in NV_PBUS_POWERCTRL_2 and break video overlay */ 255 nv_wr32(device, NV_PBUS_POWERCTRL_2, 0); 256 257 return ret; 258 } 259 260 struct lvdstableheader { 261 uint8_t lvds_ver, headerlen, recordlen; 262 }; 263 264 static int parse_lvds_manufacturer_table_header(struct drm_device *dev, struct nvbios *bios, struct lvdstableheader *lth) 265 { 266 /* 267 * BMP version (0xa) LVDS table has a simple header of version and 268 * record length. The BIT LVDS table has the typical BIT table header: 269 * version byte, header length byte, record length byte, and a byte for 270 * the maximum number of records that can be held in the table. 271 */ 272 273 struct nouveau_drm *drm = nouveau_drm(dev); 274 uint8_t lvds_ver, headerlen, recordlen; 275 276 memset(lth, 0, sizeof(struct lvdstableheader)); 277 278 if (bios->fp.lvdsmanufacturerpointer == 0x0) { 279 NV_ERROR(drm, "Pointer to LVDS manufacturer table invalid\n"); 280 return -EINVAL; 281 } 282 283 lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer]; 284 285 switch (lvds_ver) { 286 case 0x0a: /* pre NV40 */ 287 headerlen = 2; 288 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1]; 289 break; 290 case 0x30: /* NV4x */ 291 headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1]; 292 if (headerlen < 0x1f) { 293 NV_ERROR(drm, "LVDS table header not understood\n"); 294 return -EINVAL; 295 } 296 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2]; 297 break; 298 case 0x40: /* G80/G90 */ 299 headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1]; 300 if (headerlen < 0x7) { 301 NV_ERROR(drm, "LVDS table header not understood\n"); 302 return -EINVAL; 303 } 304 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2]; 305 break; 306 default: 307 NV_ERROR(drm, 308 "LVDS table revision %d.%d not currently supported\n", 309 lvds_ver >> 4, lvds_ver & 0xf); 310 return -ENOSYS; 311 } 312 313 lth->lvds_ver = lvds_ver; 314 lth->headerlen = headerlen; 315 lth->recordlen = recordlen; 316 317 return 0; 318 } 319 320 static int 321 get_fp_strap(struct drm_device *dev, struct nvbios *bios) 322 { 323 struct nouveau_device *device = nouveau_dev(dev); 324 325 /* 326 * The fp strap is normally dictated by the "User Strap" in 327 * PEXTDEV_BOOT_0[20:16], but on BMP cards when bit 2 of the 328 * Internal_Flags struct at 0x48 is set, the user strap gets overriden 329 * by the PCI subsystem ID during POST, but not before the previous user 330 * strap has been committed to CR58 for CR57=0xf on head A, which may be 331 * read and used instead 332 */ 333 334 if (bios->major_version < 5 && bios->data[0x48] & 0x4) 335 return NVReadVgaCrtc5758(dev, 0, 0xf) & 0xf; 336 337 if (device->card_type >= NV_50) 338 return (nv_rd32(device, NV_PEXTDEV_BOOT_0) >> 24) & 0xf; 339 else 340 return (nv_rd32(device, NV_PEXTDEV_BOOT_0) >> 16) & 0xf; 341 } 342 343 static int parse_fp_mode_table(struct drm_device *dev, struct nvbios *bios) 344 { 345 struct nouveau_drm *drm = nouveau_drm(dev); 346 uint8_t *fptable; 347 uint8_t fptable_ver, headerlen = 0, recordlen, fpentries = 0xf, fpindex; 348 int ret, ofs, fpstrapping; 349 struct lvdstableheader lth; 350 351 if (bios->fp.fptablepointer == 0x0) { 352 /* Apple cards don't have the fp table; the laptops use DDC */ 353 /* The table is also missing on some x86 IGPs */ 354 #ifndef __powerpc__ 355 NV_ERROR(drm, "Pointer to flat panel table invalid\n"); 356 #endif 357 bios->digital_min_front_porch = 0x4b; 358 return 0; 359 } 360 361 fptable = &bios->data[bios->fp.fptablepointer]; 362 fptable_ver = fptable[0]; 363 364 switch (fptable_ver) { 365 /* 366 * BMP version 0x5.0x11 BIOSen have version 1 like tables, but no 367 * version field, and miss one of the spread spectrum/PWM bytes. 368 * This could affect early GF2Go parts (not seen any appropriate ROMs 369 * though). Here we assume that a version of 0x05 matches this case 370 * (combining with a BMP version check would be better), as the 371 * common case for the panel type field is 0x0005, and that is in 372 * fact what we are reading the first byte of. 373 */ 374 case 0x05: /* some NV10, 11, 15, 16 */ 375 recordlen = 42; 376 ofs = -1; 377 break; 378 case 0x10: /* some NV15/16, and NV11+ */ 379 recordlen = 44; 380 ofs = 0; 381 break; 382 case 0x20: /* NV40+ */ 383 headerlen = fptable[1]; 384 recordlen = fptable[2]; 385 fpentries = fptable[3]; 386 /* 387 * fptable[4] is the minimum 388 * RAMDAC_FP_HCRTC -> RAMDAC_FP_HSYNC_START gap 389 */ 390 bios->digital_min_front_porch = fptable[4]; 391 ofs = -7; 392 break; 393 default: 394 NV_ERROR(drm, 395 "FP table revision %d.%d not currently supported\n", 396 fptable_ver >> 4, fptable_ver & 0xf); 397 return -ENOSYS; 398 } 399 400 if (!bios->is_mobile) /* !mobile only needs digital_min_front_porch */ 401 return 0; 402 403 ret = parse_lvds_manufacturer_table_header(dev, bios, <h); 404 if (ret) 405 return ret; 406 407 if (lth.lvds_ver == 0x30 || lth.lvds_ver == 0x40) { 408 bios->fp.fpxlatetableptr = bios->fp.lvdsmanufacturerpointer + 409 lth.headerlen + 1; 410 bios->fp.xlatwidth = lth.recordlen; 411 } 412 if (bios->fp.fpxlatetableptr == 0x0) { 413 NV_ERROR(drm, "Pointer to flat panel xlat table invalid\n"); 414 return -EINVAL; 415 } 416 417 fpstrapping = get_fp_strap(dev, bios); 418 419 fpindex = bios->data[bios->fp.fpxlatetableptr + 420 fpstrapping * bios->fp.xlatwidth]; 421 422 if (fpindex > fpentries) { 423 NV_ERROR(drm, "Bad flat panel table index\n"); 424 return -ENOENT; 425 } 426 427 /* nv4x cards need both a strap value and fpindex of 0xf to use DDC */ 428 if (lth.lvds_ver > 0x10) 429 bios->fp_no_ddc = fpstrapping != 0xf || fpindex != 0xf; 430 431 /* 432 * If either the strap or xlated fpindex value are 0xf there is no 433 * panel using a strap-derived bios mode present. this condition 434 * includes, but is different from, the DDC panel indicator above 435 */ 436 if (fpstrapping == 0xf || fpindex == 0xf) 437 return 0; 438 439 bios->fp.mode_ptr = bios->fp.fptablepointer + headerlen + 440 recordlen * fpindex + ofs; 441 442 NV_INFO(drm, "BIOS FP mode: %dx%d (%dkHz pixel clock)\n", 443 ROM16(bios->data[bios->fp.mode_ptr + 11]) + 1, 444 ROM16(bios->data[bios->fp.mode_ptr + 25]) + 1, 445 ROM16(bios->data[bios->fp.mode_ptr + 7]) * 10); 446 447 return 0; 448 } 449 450 bool nouveau_bios_fp_mode(struct drm_device *dev, struct drm_display_mode *mode) 451 { 452 struct nouveau_drm *drm = nouveau_drm(dev); 453 struct nvbios *bios = &drm->vbios; 454 uint8_t *mode_entry = &bios->data[bios->fp.mode_ptr]; 455 456 if (!mode) /* just checking whether we can produce a mode */ 457 return bios->fp.mode_ptr; 458 459 memset(mode, 0, sizeof(struct drm_display_mode)); 460 /* 461 * For version 1.0 (version in byte 0): 462 * bytes 1-2 are "panel type", including bits on whether Colour/mono, 463 * single/dual link, and type (TFT etc.) 464 * bytes 3-6 are bits per colour in RGBX 465 */ 466 mode->clock = ROM16(mode_entry[7]) * 10; 467 /* bytes 9-10 is HActive */ 468 mode->hdisplay = ROM16(mode_entry[11]) + 1; 469 /* 470 * bytes 13-14 is HValid Start 471 * bytes 15-16 is HValid End 472 */ 473 mode->hsync_start = ROM16(mode_entry[17]) + 1; 474 mode->hsync_end = ROM16(mode_entry[19]) + 1; 475 mode->htotal = ROM16(mode_entry[21]) + 1; 476 /* bytes 23-24, 27-30 similarly, but vertical */ 477 mode->vdisplay = ROM16(mode_entry[25]) + 1; 478 mode->vsync_start = ROM16(mode_entry[31]) + 1; 479 mode->vsync_end = ROM16(mode_entry[33]) + 1; 480 mode->vtotal = ROM16(mode_entry[35]) + 1; 481 mode->flags |= (mode_entry[37] & 0x10) ? 482 DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC; 483 mode->flags |= (mode_entry[37] & 0x1) ? 484 DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC; 485 /* 486 * bytes 38-39 relate to spread spectrum settings 487 * bytes 40-43 are something to do with PWM 488 */ 489 490 mode->status = MODE_OK; 491 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; 492 drm_mode_set_name(mode); 493 return bios->fp.mode_ptr; 494 } 495 496 int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, bool *if_is_24bit) 497 { 498 /* 499 * The LVDS table header is (mostly) described in 500 * parse_lvds_manufacturer_table_header(): the BIT header additionally 501 * contains the dual-link transition pxclk (in 10s kHz), at byte 5 - if 502 * straps are not being used for the panel, this specifies the frequency 503 * at which modes should be set up in the dual link style. 504 * 505 * Following the header, the BMP (ver 0xa) table has several records, 506 * indexed by a separate xlat table, indexed in turn by the fp strap in 507 * EXTDEV_BOOT. Each record had a config byte, followed by 6 script 508 * numbers for use by INIT_SUB which controlled panel init and power, 509 * and finally a dword of ms to sleep between power off and on 510 * operations. 511 * 512 * In the BIT versions, the table following the header serves as an 513 * integrated config and xlat table: the records in the table are 514 * indexed by the FP strap nibble in EXTDEV_BOOT, and each record has 515 * two bytes - the first as a config byte, the second for indexing the 516 * fp mode table pointed to by the BIT 'D' table 517 * 518 * DDC is not used until after card init, so selecting the correct table 519 * entry and setting the dual link flag for EDID equipped panels, 520 * requiring tests against the native-mode pixel clock, cannot be done 521 * until later, when this function should be called with non-zero pxclk 522 */ 523 struct nouveau_drm *drm = nouveau_drm(dev); 524 struct nvbios *bios = &drm->vbios; 525 int fpstrapping = get_fp_strap(dev, bios), lvdsmanufacturerindex = 0; 526 struct lvdstableheader lth; 527 uint16_t lvdsofs; 528 int ret, chip_version = bios->chip_version; 529 530 ret = parse_lvds_manufacturer_table_header(dev, bios, <h); 531 if (ret) 532 return ret; 533 534 switch (lth.lvds_ver) { 535 case 0x0a: /* pre NV40 */ 536 lvdsmanufacturerindex = bios->data[ 537 bios->fp.fpxlatemanufacturertableptr + 538 fpstrapping]; 539 540 /* we're done if this isn't the EDID panel case */ 541 if (!pxclk) 542 break; 543 544 if (chip_version < 0x25) { 545 /* nv17 behaviour 546 * 547 * It seems the old style lvds script pointer is reused 548 * to select 18/24 bit colour depth for EDID panels. 549 */ 550 lvdsmanufacturerindex = 551 (bios->legacy.lvds_single_a_script_ptr & 1) ? 552 2 : 0; 553 if (pxclk >= bios->fp.duallink_transition_clk) 554 lvdsmanufacturerindex++; 555 } else if (chip_version < 0x30) { 556 /* nv28 behaviour (off-chip encoder) 557 * 558 * nv28 does a complex dance of first using byte 121 of 559 * the EDID to choose the lvdsmanufacturerindex, then 560 * later attempting to match the EDID manufacturer and 561 * product IDs in a table (signature 'pidt' (panel id 562 * table?)), setting an lvdsmanufacturerindex of 0 and 563 * an fp strap of the match index (or 0xf if none) 564 */ 565 lvdsmanufacturerindex = 0; 566 } else { 567 /* nv31, nv34 behaviour */ 568 lvdsmanufacturerindex = 0; 569 if (pxclk >= bios->fp.duallink_transition_clk) 570 lvdsmanufacturerindex = 2; 571 if (pxclk >= 140000) 572 lvdsmanufacturerindex = 3; 573 } 574 575 /* 576 * nvidia set the high nibble of (cr57=f, cr58) to 577 * lvdsmanufacturerindex in this case; we don't 578 */ 579 break; 580 case 0x30: /* NV4x */ 581 case 0x40: /* G80/G90 */ 582 lvdsmanufacturerindex = fpstrapping; 583 break; 584 default: 585 NV_ERROR(drm, "LVDS table revision not currently supported\n"); 586 return -ENOSYS; 587 } 588 589 lvdsofs = bios->fp.xlated_entry = bios->fp.lvdsmanufacturerpointer + lth.headerlen + lth.recordlen * lvdsmanufacturerindex; 590 switch (lth.lvds_ver) { 591 case 0x0a: 592 bios->fp.power_off_for_reset = bios->data[lvdsofs] & 1; 593 bios->fp.reset_after_pclk_change = bios->data[lvdsofs] & 2; 594 bios->fp.dual_link = bios->data[lvdsofs] & 4; 595 bios->fp.link_c_increment = bios->data[lvdsofs] & 8; 596 *if_is_24bit = bios->data[lvdsofs] & 16; 597 break; 598 case 0x30: 599 case 0x40: 600 /* 601 * No sign of the "power off for reset" or "reset for panel 602 * on" bits, but it's safer to assume we should 603 */ 604 bios->fp.power_off_for_reset = true; 605 bios->fp.reset_after_pclk_change = true; 606 607 /* 608 * It's ok lvdsofs is wrong for nv4x edid case; dual_link is 609 * over-written, and if_is_24bit isn't used 610 */ 611 bios->fp.dual_link = bios->data[lvdsofs] & 1; 612 bios->fp.if_is_24bit = bios->data[lvdsofs] & 2; 613 bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4]; 614 bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5]) * 10; 615 break; 616 } 617 618 /* set dual_link flag for EDID case */ 619 if (pxclk && (chip_version < 0x25 || chip_version > 0x28)) 620 bios->fp.dual_link = (pxclk >= bios->fp.duallink_transition_clk); 621 622 *dl = bios->fp.dual_link; 623 624 return 0; 625 } 626 627 /* BIT 'U'/'d' table encoder subtables have hashes matching them to 628 * a particular set of encoders. 629 * 630 * This function returns true if a particular DCB entry matches. 631 */ 632 bool 633 bios_encoder_match(struct dcb_output *dcb, u32 hash) 634 { 635 if ((hash & 0x000000f0) != (dcb->location << 4)) 636 return false; 637 if ((hash & 0x0000000f) != dcb->type) 638 return false; 639 if (!(hash & (dcb->or << 16))) 640 return false; 641 642 switch (dcb->type) { 643 case DCB_OUTPUT_TMDS: 644 case DCB_OUTPUT_LVDS: 645 case DCB_OUTPUT_DP: 646 if (hash & 0x00c00000) { 647 if (!(hash & (dcb->sorconf.link << 22))) 648 return false; 649 } 650 default: 651 return true; 652 } 653 } 654 655 int 656 nouveau_bios_run_display_table(struct drm_device *dev, u16 type, int pclk, 657 struct dcb_output *dcbent, int crtc) 658 { 659 /* 660 * The display script table is located by the BIT 'U' table. 661 * 662 * It contains an array of pointers to various tables describing 663 * a particular output type. The first 32-bits of the output 664 * tables contains similar information to a DCB entry, and is 665 * used to decide whether that particular table is suitable for 666 * the output you want to access. 667 * 668 * The "record header length" field here seems to indicate the 669 * offset of the first configuration entry in the output tables. 670 * This is 10 on most cards I've seen, but 12 has been witnessed 671 * on DP cards, and there's another script pointer within the 672 * header. 673 * 674 * offset + 0 ( 8 bits): version 675 * offset + 1 ( 8 bits): header length 676 * offset + 2 ( 8 bits): record length 677 * offset + 3 ( 8 bits): number of records 678 * offset + 4 ( 8 bits): record header length 679 * offset + 5 (16 bits): pointer to first output script table 680 */ 681 682 struct nouveau_drm *drm = nouveau_drm(dev); 683 struct nvbios *bios = &drm->vbios; 684 uint8_t *table = &bios->data[bios->display.script_table_ptr]; 685 uint8_t *otable = NULL; 686 uint16_t script; 687 int i; 688 689 if (!bios->display.script_table_ptr) { 690 NV_ERROR(drm, "No pointer to output script table\n"); 691 return 1; 692 } 693 694 /* 695 * Nothing useful has been in any of the pre-2.0 tables I've seen, 696 * so until they are, we really don't need to care. 697 */ 698 if (table[0] < 0x20) 699 return 1; 700 701 if (table[0] != 0x20 && table[0] != 0x21) { 702 NV_ERROR(drm, "Output script table version 0x%02x unknown\n", 703 table[0]); 704 return 1; 705 } 706 707 /* 708 * The output script tables describing a particular output type 709 * look as follows: 710 * 711 * offset + 0 (32 bits): output this table matches (hash of DCB) 712 * offset + 4 ( 8 bits): unknown 713 * offset + 5 ( 8 bits): number of configurations 714 * offset + 6 (16 bits): pointer to some script 715 * offset + 8 (16 bits): pointer to some script 716 * 717 * headerlen == 10 718 * offset + 10 : configuration 0 719 * 720 * headerlen == 12 721 * offset + 10 : pointer to some script 722 * offset + 12 : configuration 0 723 * 724 * Each config entry is as follows: 725 * 726 * offset + 0 (16 bits): unknown, assumed to be a match value 727 * offset + 2 (16 bits): pointer to script table (clock set?) 728 * offset + 4 (16 bits): pointer to script table (reset?) 729 * 730 * There doesn't appear to be a count value to say how many 731 * entries exist in each script table, instead, a 0 value in 732 * the first 16-bit word seems to indicate both the end of the 733 * list and the default entry. The second 16-bit word in the 734 * script tables is a pointer to the script to execute. 735 */ 736 737 NV_DEBUG(drm, "Searching for output entry for %d %d %d\n", 738 dcbent->type, dcbent->location, dcbent->or); 739 for (i = 0; i < table[3]; i++) { 740 otable = ROMPTR(dev, table[table[1] + (i * table[2])]); 741 if (otable && bios_encoder_match(dcbent, ROM32(otable[0]))) 742 break; 743 } 744 745 if (!otable) { 746 NV_DEBUG(drm, "failed to match any output table\n"); 747 return 1; 748 } 749 750 if (pclk < -2 || pclk > 0) { 751 /* Try to find matching script table entry */ 752 for (i = 0; i < otable[5]; i++) { 753 if (ROM16(otable[table[4] + i*6]) == type) 754 break; 755 } 756 757 if (i == otable[5]) { 758 NV_ERROR(drm, "Table 0x%04x not found for %d/%d, " 759 "using first\n", 760 type, dcbent->type, dcbent->or); 761 i = 0; 762 } 763 } 764 765 if (pclk == 0) { 766 script = ROM16(otable[6]); 767 if (!script) { 768 NV_DEBUG(drm, "output script 0 not found\n"); 769 return 1; 770 } 771 772 NV_DEBUG(drm, "0x%04X: parsing output script 0\n", script); 773 nouveau_bios_run_init_table(dev, script, dcbent, crtc); 774 } else 775 if (pclk == -1) { 776 script = ROM16(otable[8]); 777 if (!script) { 778 NV_DEBUG(drm, "output script 1 not found\n"); 779 return 1; 780 } 781 782 NV_DEBUG(drm, "0x%04X: parsing output script 1\n", script); 783 nouveau_bios_run_init_table(dev, script, dcbent, crtc); 784 } else 785 if (pclk == -2) { 786 if (table[4] >= 12) 787 script = ROM16(otable[10]); 788 else 789 script = 0; 790 if (!script) { 791 NV_DEBUG(drm, "output script 2 not found\n"); 792 return 1; 793 } 794 795 NV_DEBUG(drm, "0x%04X: parsing output script 2\n", script); 796 nouveau_bios_run_init_table(dev, script, dcbent, crtc); 797 } else 798 if (pclk > 0) { 799 script = ROM16(otable[table[4] + i*6 + 2]); 800 if (script) 801 script = clkcmptable(bios, script, pclk); 802 if (!script) { 803 NV_DEBUG(drm, "clock script 0 not found\n"); 804 return 1; 805 } 806 807 NV_DEBUG(drm, "0x%04X: parsing clock script 0\n", script); 808 nouveau_bios_run_init_table(dev, script, dcbent, crtc); 809 } else 810 if (pclk < 0) { 811 script = ROM16(otable[table[4] + i*6 + 4]); 812 if (script) 813 script = clkcmptable(bios, script, -pclk); 814 if (!script) { 815 NV_DEBUG(drm, "clock script 1 not found\n"); 816 return 1; 817 } 818 819 NV_DEBUG(drm, "0x%04X: parsing clock script 1\n", script); 820 nouveau_bios_run_init_table(dev, script, dcbent, crtc); 821 } 822 823 return 0; 824 } 825 826 827 int run_tmds_table(struct drm_device *dev, struct dcb_output *dcbent, int head, int pxclk) 828 { 829 /* 830 * the pxclk parameter is in kHz 831 * 832 * This runs the TMDS regs setting code found on BIT bios cards 833 * 834 * For ffs(or) == 1 use the first table, for ffs(or) == 2 and 835 * ffs(or) == 3, use the second. 836 */ 837 838 struct nouveau_drm *drm = nouveau_drm(dev); 839 struct nouveau_device *device = nv_device(drm->device); 840 struct nvbios *bios = &drm->vbios; 841 int cv = bios->chip_version; 842 uint16_t clktable = 0, scriptptr; 843 uint32_t sel_clk_binding, sel_clk; 844 845 /* pre-nv17 off-chip tmds uses scripts, post nv17 doesn't */ 846 if (cv >= 0x17 && cv != 0x1a && cv != 0x20 && 847 dcbent->location != DCB_LOC_ON_CHIP) 848 return 0; 849 850 switch (ffs(dcbent->or)) { 851 case 1: 852 clktable = bios->tmds.output0_script_ptr; 853 break; 854 case 2: 855 case 3: 856 clktable = bios->tmds.output1_script_ptr; 857 break; 858 } 859 860 if (!clktable) { 861 NV_ERROR(drm, "Pixel clock comparison table not found\n"); 862 return -EINVAL; 863 } 864 865 scriptptr = clkcmptable(bios, clktable, pxclk); 866 867 if (!scriptptr) { 868 NV_ERROR(drm, "TMDS output init script not found\n"); 869 return -ENOENT; 870 } 871 872 /* don't let script change pll->head binding */ 873 sel_clk_binding = nv_rd32(device, NV_PRAMDAC_SEL_CLK) & 0x50000; 874 run_digital_op_script(dev, scriptptr, dcbent, head, pxclk >= 165000); 875 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000; 876 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding); 877 878 return 0; 879 } 880 881 static void parse_bios_version(struct drm_device *dev, struct nvbios *bios, uint16_t offset) 882 { 883 /* 884 * offset + 0 (8 bits): Micro version 885 * offset + 1 (8 bits): Minor version 886 * offset + 2 (8 bits): Chip version 887 * offset + 3 (8 bits): Major version 888 */ 889 struct nouveau_drm *drm = nouveau_drm(dev); 890 891 bios->major_version = bios->data[offset + 3]; 892 bios->chip_version = bios->data[offset + 2]; 893 NV_INFO(drm, "Bios version %02x.%02x.%02x.%02x\n", 894 bios->data[offset + 3], bios->data[offset + 2], 895 bios->data[offset + 1], bios->data[offset]); 896 } 897 898 static void parse_script_table_pointers(struct nvbios *bios, uint16_t offset) 899 { 900 /* 901 * Parses the init table segment for pointers used in script execution. 902 * 903 * offset + 0 (16 bits): init script tables pointer 904 * offset + 2 (16 bits): macro index table pointer 905 * offset + 4 (16 bits): macro table pointer 906 * offset + 6 (16 bits): condition table pointer 907 * offset + 8 (16 bits): io condition table pointer 908 * offset + 10 (16 bits): io flag condition table pointer 909 * offset + 12 (16 bits): init function table pointer 910 */ 911 912 bios->init_script_tbls_ptr = ROM16(bios->data[offset]); 913 bios->macro_index_tbl_ptr = ROM16(bios->data[offset + 2]); 914 bios->macro_tbl_ptr = ROM16(bios->data[offset + 4]); 915 bios->condition_tbl_ptr = ROM16(bios->data[offset + 6]); 916 bios->io_condition_tbl_ptr = ROM16(bios->data[offset + 8]); 917 bios->io_flag_condition_tbl_ptr = ROM16(bios->data[offset + 10]); 918 bios->init_function_tbl_ptr = ROM16(bios->data[offset + 12]); 919 } 920 921 static int parse_bit_A_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 922 { 923 /* 924 * Parses the load detect values for g80 cards. 925 * 926 * offset + 0 (16 bits): loadval table pointer 927 */ 928 929 struct nouveau_drm *drm = nouveau_drm(dev); 930 uint16_t load_table_ptr; 931 uint8_t version, headerlen, entrylen, num_entries; 932 933 if (bitentry->length != 3) { 934 NV_ERROR(drm, "Do not understand BIT A table\n"); 935 return -EINVAL; 936 } 937 938 load_table_ptr = ROM16(bios->data[bitentry->offset]); 939 940 if (load_table_ptr == 0x0) { 941 NV_DEBUG(drm, "Pointer to BIT loadval table invalid\n"); 942 return -EINVAL; 943 } 944 945 version = bios->data[load_table_ptr]; 946 947 if (version != 0x10) { 948 NV_ERROR(drm, "BIT loadval table version %d.%d not supported\n", 949 version >> 4, version & 0xF); 950 return -ENOSYS; 951 } 952 953 headerlen = bios->data[load_table_ptr + 1]; 954 entrylen = bios->data[load_table_ptr + 2]; 955 num_entries = bios->data[load_table_ptr + 3]; 956 957 if (headerlen != 4 || entrylen != 4 || num_entries != 2) { 958 NV_ERROR(drm, "Do not understand BIT loadval table\n"); 959 return -EINVAL; 960 } 961 962 /* First entry is normal dac, 2nd tv-out perhaps? */ 963 bios->dactestval = ROM32(bios->data[load_table_ptr + headerlen]) & 0x3ff; 964 965 return 0; 966 } 967 968 static int parse_bit_C_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 969 { 970 /* 971 * offset + 8 (16 bits): PLL limits table pointer 972 * 973 * There's more in here, but that's unknown. 974 */ 975 struct nouveau_drm *drm = nouveau_drm(dev); 976 977 if (bitentry->length < 10) { 978 NV_ERROR(drm, "Do not understand BIT C table\n"); 979 return -EINVAL; 980 } 981 982 bios->pll_limit_tbl_ptr = ROM16(bios->data[bitentry->offset + 8]); 983 984 return 0; 985 } 986 987 static int parse_bit_display_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 988 { 989 /* 990 * Parses the flat panel table segment that the bit entry points to. 991 * Starting at bitentry->offset: 992 * 993 * offset + 0 (16 bits): ??? table pointer - seems to have 18 byte 994 * records beginning with a freq. 995 * offset + 2 (16 bits): mode table pointer 996 */ 997 struct nouveau_drm *drm = nouveau_drm(dev); 998 999 if (bitentry->length != 4) { 1000 NV_ERROR(drm, "Do not understand BIT display table\n"); 1001 return -EINVAL; 1002 } 1003 1004 bios->fp.fptablepointer = ROM16(bios->data[bitentry->offset + 2]); 1005 1006 return 0; 1007 } 1008 1009 static int parse_bit_init_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 1010 { 1011 /* 1012 * Parses the init table segment that the bit entry points to. 1013 * 1014 * See parse_script_table_pointers for layout 1015 */ 1016 struct nouveau_drm *drm = nouveau_drm(dev); 1017 1018 if (bitentry->length < 14) { 1019 NV_ERROR(drm, "Do not understand init table\n"); 1020 return -EINVAL; 1021 } 1022 1023 parse_script_table_pointers(bios, bitentry->offset); 1024 1025 if (bitentry->length >= 16) 1026 bios->some_script_ptr = ROM16(bios->data[bitentry->offset + 14]); 1027 if (bitentry->length >= 18) 1028 bios->init96_tbl_ptr = ROM16(bios->data[bitentry->offset + 16]); 1029 1030 return 0; 1031 } 1032 1033 static int parse_bit_i_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 1034 { 1035 /* 1036 * BIT 'i' (info?) table 1037 * 1038 * offset + 0 (32 bits): BIOS version dword (as in B table) 1039 * offset + 5 (8 bits): BIOS feature byte (same as for BMP?) 1040 * offset + 13 (16 bits): pointer to table containing DAC load 1041 * detection comparison values 1042 * 1043 * There's other things in the table, purpose unknown 1044 */ 1045 1046 struct nouveau_drm *drm = nouveau_drm(dev); 1047 uint16_t daccmpoffset; 1048 uint8_t dacver, dacheaderlen; 1049 1050 if (bitentry->length < 6) { 1051 NV_ERROR(drm, "BIT i table too short for needed information\n"); 1052 return -EINVAL; 1053 } 1054 1055 parse_bios_version(dev, bios, bitentry->offset); 1056 1057 /* 1058 * bit 4 seems to indicate a mobile bios (doesn't suffer from BMP's 1059 * Quadro identity crisis), other bits possibly as for BMP feature byte 1060 */ 1061 bios->feature_byte = bios->data[bitentry->offset + 5]; 1062 bios->is_mobile = bios->feature_byte & FEATURE_MOBILE; 1063 1064 if (bitentry->length < 15) { 1065 NV_WARN(drm, "BIT i table not long enough for DAC load " 1066 "detection comparison table\n"); 1067 return -EINVAL; 1068 } 1069 1070 daccmpoffset = ROM16(bios->data[bitentry->offset + 13]); 1071 1072 /* doesn't exist on g80 */ 1073 if (!daccmpoffset) 1074 return 0; 1075 1076 /* 1077 * The first value in the table, following the header, is the 1078 * comparison value, the second entry is a comparison value for 1079 * TV load detection. 1080 */ 1081 1082 dacver = bios->data[daccmpoffset]; 1083 dacheaderlen = bios->data[daccmpoffset + 1]; 1084 1085 if (dacver != 0x00 && dacver != 0x10) { 1086 NV_WARN(drm, "DAC load detection comparison table version " 1087 "%d.%d not known\n", dacver >> 4, dacver & 0xf); 1088 return -ENOSYS; 1089 } 1090 1091 bios->dactestval = ROM32(bios->data[daccmpoffset + dacheaderlen]); 1092 bios->tvdactestval = ROM32(bios->data[daccmpoffset + dacheaderlen + 4]); 1093 1094 return 0; 1095 } 1096 1097 static int parse_bit_lvds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 1098 { 1099 /* 1100 * Parses the LVDS table segment that the bit entry points to. 1101 * Starting at bitentry->offset: 1102 * 1103 * offset + 0 (16 bits): LVDS strap xlate table pointer 1104 */ 1105 1106 struct nouveau_drm *drm = nouveau_drm(dev); 1107 1108 if (bitentry->length != 2) { 1109 NV_ERROR(drm, "Do not understand BIT LVDS table\n"); 1110 return -EINVAL; 1111 } 1112 1113 /* 1114 * No idea if it's still called the LVDS manufacturer table, but 1115 * the concept's close enough. 1116 */ 1117 bios->fp.lvdsmanufacturerpointer = ROM16(bios->data[bitentry->offset]); 1118 1119 return 0; 1120 } 1121 1122 static int 1123 parse_bit_M_tbl_entry(struct drm_device *dev, struct nvbios *bios, 1124 struct bit_entry *bitentry) 1125 { 1126 /* 1127 * offset + 2 (8 bits): number of options in an 1128 * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode option set 1129 * offset + 3 (16 bits): pointer to strap xlate table for RAM 1130 * restrict option selection 1131 * 1132 * There's a bunch of bits in this table other than the RAM restrict 1133 * stuff that we don't use - their use currently unknown 1134 */ 1135 1136 /* 1137 * Older bios versions don't have a sufficiently long table for 1138 * what we want 1139 */ 1140 if (bitentry->length < 0x5) 1141 return 0; 1142 1143 if (bitentry->version < 2) { 1144 bios->ram_restrict_group_count = bios->data[bitentry->offset + 2]; 1145 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 3]); 1146 } else { 1147 bios->ram_restrict_group_count = bios->data[bitentry->offset + 0]; 1148 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 1]); 1149 } 1150 1151 return 0; 1152 } 1153 1154 static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 1155 { 1156 /* 1157 * Parses the pointer to the TMDS table 1158 * 1159 * Starting at bitentry->offset: 1160 * 1161 * offset + 0 (16 bits): TMDS table pointer 1162 * 1163 * The TMDS table is typically found just before the DCB table, with a 1164 * characteristic signature of 0x11,0x13 (1.1 being version, 0x13 being 1165 * length?) 1166 * 1167 * At offset +7 is a pointer to a script, which I don't know how to 1168 * run yet. 1169 * At offset +9 is a pointer to another script, likewise 1170 * Offset +11 has a pointer to a table where the first word is a pxclk 1171 * frequency and the second word a pointer to a script, which should be 1172 * run if the comparison pxclk frequency is less than the pxclk desired. 1173 * This repeats for decreasing comparison frequencies 1174 * Offset +13 has a pointer to a similar table 1175 * The selection of table (and possibly +7/+9 script) is dictated by 1176 * "or" from the DCB. 1177 */ 1178 1179 struct nouveau_drm *drm = nouveau_drm(dev); 1180 uint16_t tmdstableptr, script1, script2; 1181 1182 if (bitentry->length != 2) { 1183 NV_ERROR(drm, "Do not understand BIT TMDS table\n"); 1184 return -EINVAL; 1185 } 1186 1187 tmdstableptr = ROM16(bios->data[bitentry->offset]); 1188 if (!tmdstableptr) { 1189 NV_ERROR(drm, "Pointer to TMDS table invalid\n"); 1190 return -EINVAL; 1191 } 1192 1193 NV_INFO(drm, "TMDS table version %d.%d\n", 1194 bios->data[tmdstableptr] >> 4, bios->data[tmdstableptr] & 0xf); 1195 1196 /* nv50+ has v2.0, but we don't parse it atm */ 1197 if (bios->data[tmdstableptr] != 0x11) 1198 return -ENOSYS; 1199 1200 /* 1201 * These two scripts are odd: they don't seem to get run even when 1202 * they are not stubbed. 1203 */ 1204 script1 = ROM16(bios->data[tmdstableptr + 7]); 1205 script2 = ROM16(bios->data[tmdstableptr + 9]); 1206 if (bios->data[script1] != 'q' || bios->data[script2] != 'q') 1207 NV_WARN(drm, "TMDS table script pointers not stubbed\n"); 1208 1209 bios->tmds.output0_script_ptr = ROM16(bios->data[tmdstableptr + 11]); 1210 bios->tmds.output1_script_ptr = ROM16(bios->data[tmdstableptr + 13]); 1211 1212 return 0; 1213 } 1214 1215 static int 1216 parse_bit_U_tbl_entry(struct drm_device *dev, struct nvbios *bios, 1217 struct bit_entry *bitentry) 1218 { 1219 /* 1220 * Parses the pointer to the G80 output script tables 1221 * 1222 * Starting at bitentry->offset: 1223 * 1224 * offset + 0 (16 bits): output script table pointer 1225 */ 1226 1227 struct nouveau_drm *drm = nouveau_drm(dev); 1228 uint16_t outputscripttableptr; 1229 1230 if (bitentry->length != 3) { 1231 NV_ERROR(drm, "Do not understand BIT U table\n"); 1232 return -EINVAL; 1233 } 1234 1235 outputscripttableptr = ROM16(bios->data[bitentry->offset]); 1236 bios->display.script_table_ptr = outputscripttableptr; 1237 return 0; 1238 } 1239 1240 struct bit_table { 1241 const char id; 1242 int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *); 1243 }; 1244 1245 #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry }) 1246 1247 int 1248 bit_table(struct drm_device *dev, u8 id, struct bit_entry *bit) 1249 { 1250 struct nouveau_drm *drm = nouveau_drm(dev); 1251 struct nvbios *bios = &drm->vbios; 1252 u8 entries, *entry; 1253 1254 if (bios->type != NVBIOS_BIT) 1255 return -ENODEV; 1256 1257 entries = bios->data[bios->offset + 10]; 1258 entry = &bios->data[bios->offset + 12]; 1259 while (entries--) { 1260 if (entry[0] == id) { 1261 bit->id = entry[0]; 1262 bit->version = entry[1]; 1263 bit->length = ROM16(entry[2]); 1264 bit->offset = ROM16(entry[4]); 1265 bit->data = ROMPTR(dev, entry[4]); 1266 return 0; 1267 } 1268 1269 entry += bios->data[bios->offset + 9]; 1270 } 1271 1272 return -ENOENT; 1273 } 1274 1275 static int 1276 parse_bit_table(struct nvbios *bios, const uint16_t bitoffset, 1277 struct bit_table *table) 1278 { 1279 struct drm_device *dev = bios->dev; 1280 struct nouveau_drm *drm = nouveau_drm(dev); 1281 struct bit_entry bitentry; 1282 1283 if (bit_table(dev, table->id, &bitentry) == 0) 1284 return table->parse_fn(dev, bios, &bitentry); 1285 1286 NV_INFO(drm, "BIT table '%c' not found\n", table->id); 1287 return -ENOSYS; 1288 } 1289 1290 static int 1291 parse_bit_structure(struct nvbios *bios, const uint16_t bitoffset) 1292 { 1293 int ret; 1294 1295 /* 1296 * The only restriction on parsing order currently is having 'i' first 1297 * for use of bios->*_version or bios->feature_byte while parsing; 1298 * functions shouldn't be actually *doing* anything apart from pulling 1299 * data from the image into the bios struct, thus no interdependencies 1300 */ 1301 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('i', i)); 1302 if (ret) /* info? */ 1303 return ret; 1304 if (bios->major_version >= 0x60) /* g80+ */ 1305 parse_bit_table(bios, bitoffset, &BIT_TABLE('A', A)); 1306 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('C', C)); 1307 if (ret) 1308 return ret; 1309 parse_bit_table(bios, bitoffset, &BIT_TABLE('D', display)); 1310 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('I', init)); 1311 if (ret) 1312 return ret; 1313 parse_bit_table(bios, bitoffset, &BIT_TABLE('M', M)); /* memory? */ 1314 parse_bit_table(bios, bitoffset, &BIT_TABLE('L', lvds)); 1315 parse_bit_table(bios, bitoffset, &BIT_TABLE('T', tmds)); 1316 parse_bit_table(bios, bitoffset, &BIT_TABLE('U', U)); 1317 1318 return 0; 1319 } 1320 1321 static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsigned int offset) 1322 { 1323 /* 1324 * Parses the BMP structure for useful things, but does not act on them 1325 * 1326 * offset + 5: BMP major version 1327 * offset + 6: BMP minor version 1328 * offset + 9: BMP feature byte 1329 * offset + 10: BCD encoded BIOS version 1330 * 1331 * offset + 18: init script table pointer (for bios versions < 5.10h) 1332 * offset + 20: extra init script table pointer (for bios 1333 * versions < 5.10h) 1334 * 1335 * offset + 24: memory init table pointer (used on early bios versions) 1336 * offset + 26: SDR memory sequencing setup data table 1337 * offset + 28: DDR memory sequencing setup data table 1338 * 1339 * offset + 54: index of I2C CRTC pair to use for CRT output 1340 * offset + 55: index of I2C CRTC pair to use for TV output 1341 * offset + 56: index of I2C CRTC pair to use for flat panel output 1342 * offset + 58: write CRTC index for I2C pair 0 1343 * offset + 59: read CRTC index for I2C pair 0 1344 * offset + 60: write CRTC index for I2C pair 1 1345 * offset + 61: read CRTC index for I2C pair 1 1346 * 1347 * offset + 67: maximum internal PLL frequency (single stage PLL) 1348 * offset + 71: minimum internal PLL frequency (single stage PLL) 1349 * 1350 * offset + 75: script table pointers, as described in 1351 * parse_script_table_pointers 1352 * 1353 * offset + 89: TMDS single link output A table pointer 1354 * offset + 91: TMDS single link output B table pointer 1355 * offset + 95: LVDS single link output A table pointer 1356 * offset + 105: flat panel timings table pointer 1357 * offset + 107: flat panel strapping translation table pointer 1358 * offset + 117: LVDS manufacturer panel config table pointer 1359 * offset + 119: LVDS manufacturer strapping translation table pointer 1360 * 1361 * offset + 142: PLL limits table pointer 1362 * 1363 * offset + 156: minimum pixel clock for LVDS dual link 1364 */ 1365 1366 struct nouveau_drm *drm = nouveau_drm(dev); 1367 uint8_t *bmp = &bios->data[offset], bmp_version_major, bmp_version_minor; 1368 uint16_t bmplength; 1369 uint16_t legacy_scripts_offset, legacy_i2c_offset; 1370 1371 /* load needed defaults in case we can't parse this info */ 1372 bios->digital_min_front_porch = 0x4b; 1373 bios->fmaxvco = 256000; 1374 bios->fminvco = 128000; 1375 bios->fp.duallink_transition_clk = 90000; 1376 1377 bmp_version_major = bmp[5]; 1378 bmp_version_minor = bmp[6]; 1379 1380 NV_INFO(drm, "BMP version %d.%d\n", 1381 bmp_version_major, bmp_version_minor); 1382 1383 /* 1384 * Make sure that 0x36 is blank and can't be mistaken for a DCB 1385 * pointer on early versions 1386 */ 1387 if (bmp_version_major < 5) 1388 *(uint16_t *)&bios->data[0x36] = 0; 1389 1390 /* 1391 * Seems that the minor version was 1 for all major versions prior 1392 * to 5. Version 6 could theoretically exist, but I suspect BIT 1393 * happened instead. 1394 */ 1395 if ((bmp_version_major < 5 && bmp_version_minor != 1) || bmp_version_major > 5) { 1396 NV_ERROR(drm, "You have an unsupported BMP version. " 1397 "Please send in your bios\n"); 1398 return -ENOSYS; 1399 } 1400 1401 if (bmp_version_major == 0) 1402 /* nothing that's currently useful in this version */ 1403 return 0; 1404 else if (bmp_version_major == 1) 1405 bmplength = 44; /* exact for 1.01 */ 1406 else if (bmp_version_major == 2) 1407 bmplength = 48; /* exact for 2.01 */ 1408 else if (bmp_version_major == 3) 1409 bmplength = 54; 1410 /* guessed - mem init tables added in this version */ 1411 else if (bmp_version_major == 4 || bmp_version_minor < 0x1) 1412 /* don't know if 5.0 exists... */ 1413 bmplength = 62; 1414 /* guessed - BMP I2C indices added in version 4*/ 1415 else if (bmp_version_minor < 0x6) 1416 bmplength = 67; /* exact for 5.01 */ 1417 else if (bmp_version_minor < 0x10) 1418 bmplength = 75; /* exact for 5.06 */ 1419 else if (bmp_version_minor == 0x10) 1420 bmplength = 89; /* exact for 5.10h */ 1421 else if (bmp_version_minor < 0x14) 1422 bmplength = 118; /* exact for 5.11h */ 1423 else if (bmp_version_minor < 0x24) 1424 /* 1425 * Not sure of version where pll limits came in; 1426 * certainly exist by 0x24 though. 1427 */ 1428 /* length not exact: this is long enough to get lvds members */ 1429 bmplength = 123; 1430 else if (bmp_version_minor < 0x27) 1431 /* 1432 * Length not exact: this is long enough to get pll limit 1433 * member 1434 */ 1435 bmplength = 144; 1436 else 1437 /* 1438 * Length not exact: this is long enough to get dual link 1439 * transition clock. 1440 */ 1441 bmplength = 158; 1442 1443 /* checksum */ 1444 if (nv_cksum(bmp, 8)) { 1445 NV_ERROR(drm, "Bad BMP checksum\n"); 1446 return -EINVAL; 1447 } 1448 1449 /* 1450 * Bit 4 seems to indicate either a mobile bios or a quadro card -- 1451 * mobile behaviour consistent (nv11+), quadro only seen nv18gl-nv36gl 1452 * (not nv10gl), bit 5 that the flat panel tables are present, and 1453 * bit 6 a tv bios. 1454 */ 1455 bios->feature_byte = bmp[9]; 1456 1457 parse_bios_version(dev, bios, offset + 10); 1458 1459 if (bmp_version_major < 5 || bmp_version_minor < 0x10) 1460 bios->old_style_init = true; 1461 legacy_scripts_offset = 18; 1462 if (bmp_version_major < 2) 1463 legacy_scripts_offset -= 4; 1464 bios->init_script_tbls_ptr = ROM16(bmp[legacy_scripts_offset]); 1465 bios->extra_init_script_tbl_ptr = ROM16(bmp[legacy_scripts_offset + 2]); 1466 1467 if (bmp_version_major > 2) { /* appears in BMP 3 */ 1468 bios->legacy.mem_init_tbl_ptr = ROM16(bmp[24]); 1469 bios->legacy.sdr_seq_tbl_ptr = ROM16(bmp[26]); 1470 bios->legacy.ddr_seq_tbl_ptr = ROM16(bmp[28]); 1471 } 1472 1473 legacy_i2c_offset = 0x48; /* BMP version 2 & 3 */ 1474 if (bmplength > 61) 1475 legacy_i2c_offset = offset + 54; 1476 bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset]; 1477 bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1]; 1478 bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2]; 1479 1480 if (bmplength > 74) { 1481 bios->fmaxvco = ROM32(bmp[67]); 1482 bios->fminvco = ROM32(bmp[71]); 1483 } 1484 if (bmplength > 88) 1485 parse_script_table_pointers(bios, offset + 75); 1486 if (bmplength > 94) { 1487 bios->tmds.output0_script_ptr = ROM16(bmp[89]); 1488 bios->tmds.output1_script_ptr = ROM16(bmp[91]); 1489 /* 1490 * Never observed in use with lvds scripts, but is reused for 1491 * 18/24 bit panel interface default for EDID equipped panels 1492 * (if_is_24bit not set directly to avoid any oscillation). 1493 */ 1494 bios->legacy.lvds_single_a_script_ptr = ROM16(bmp[95]); 1495 } 1496 if (bmplength > 108) { 1497 bios->fp.fptablepointer = ROM16(bmp[105]); 1498 bios->fp.fpxlatetableptr = ROM16(bmp[107]); 1499 bios->fp.xlatwidth = 1; 1500 } 1501 if (bmplength > 120) { 1502 bios->fp.lvdsmanufacturerpointer = ROM16(bmp[117]); 1503 bios->fp.fpxlatemanufacturertableptr = ROM16(bmp[119]); 1504 } 1505 if (bmplength > 143) 1506 bios->pll_limit_tbl_ptr = ROM16(bmp[142]); 1507 1508 if (bmplength > 157) 1509 bios->fp.duallink_transition_clk = ROM16(bmp[156]) * 10; 1510 1511 return 0; 1512 } 1513 1514 static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len) 1515 { 1516 int i, j; 1517 1518 for (i = 0; i <= (n - len); i++) { 1519 for (j = 0; j < len; j++) 1520 if (data[i + j] != str[j]) 1521 break; 1522 if (j == len) 1523 return i; 1524 } 1525 1526 return 0; 1527 } 1528 1529 void * 1530 olddcb_table(struct drm_device *dev) 1531 { 1532 struct nouveau_drm *drm = nouveau_drm(dev); 1533 u8 *dcb = NULL; 1534 1535 if (nv_device(drm->device)->card_type > NV_04) 1536 dcb = ROMPTR(dev, drm->vbios.data[0x36]); 1537 if (!dcb) { 1538 NV_WARN(drm, "No DCB data found in VBIOS\n"); 1539 return NULL; 1540 } 1541 1542 if (dcb[0] >= 0x41) { 1543 NV_WARN(drm, "DCB version 0x%02x unknown\n", dcb[0]); 1544 return NULL; 1545 } else 1546 if (dcb[0] >= 0x30) { 1547 if (ROM32(dcb[6]) == 0x4edcbdcb) 1548 return dcb; 1549 } else 1550 if (dcb[0] >= 0x20) { 1551 if (ROM32(dcb[4]) == 0x4edcbdcb) 1552 return dcb; 1553 } else 1554 if (dcb[0] >= 0x15) { 1555 if (!memcmp(&dcb[-7], "DEV_REC", 7)) 1556 return dcb; 1557 } else { 1558 /* 1559 * v1.4 (some NV15/16, NV11+) seems the same as v1.5, but 1560 * always has the same single (crt) entry, even when tv-out 1561 * present, so the conclusion is this version cannot really 1562 * be used. 1563 * 1564 * v1.2 tables (some NV6/10, and NV15+) normally have the 1565 * same 5 entries, which are not specific to the card and so 1566 * no use. 1567 * 1568 * v1.2 does have an I2C table that read_dcb_i2c_table can 1569 * handle, but cards exist (nv11 in #14821) with a bad i2c 1570 * table pointer, so use the indices parsed in 1571 * parse_bmp_structure. 1572 * 1573 * v1.1 (NV5+, maybe some NV4) is entirely unhelpful 1574 */ 1575 NV_WARN(drm, "No useful DCB data in VBIOS\n"); 1576 return NULL; 1577 } 1578 1579 NV_WARN(drm, "DCB header validation failed\n"); 1580 return NULL; 1581 } 1582 1583 void * 1584 olddcb_outp(struct drm_device *dev, u8 idx) 1585 { 1586 u8 *dcb = olddcb_table(dev); 1587 if (dcb && dcb[0] >= 0x30) { 1588 if (idx < dcb[2]) 1589 return dcb + dcb[1] + (idx * dcb[3]); 1590 } else 1591 if (dcb && dcb[0] >= 0x20) { 1592 u8 *i2c = ROMPTR(dev, dcb[2]); 1593 u8 *ent = dcb + 8 + (idx * 8); 1594 if (i2c && ent < i2c) 1595 return ent; 1596 } else 1597 if (dcb && dcb[0] >= 0x15) { 1598 u8 *i2c = ROMPTR(dev, dcb[2]); 1599 u8 *ent = dcb + 4 + (idx * 10); 1600 if (i2c && ent < i2c) 1601 return ent; 1602 } 1603 1604 return NULL; 1605 } 1606 1607 int 1608 olddcb_outp_foreach(struct drm_device *dev, void *data, 1609 int (*exec)(struct drm_device *, void *, int idx, u8 *outp)) 1610 { 1611 int ret, idx = -1; 1612 u8 *outp = NULL; 1613 while ((outp = olddcb_outp(dev, ++idx))) { 1614 if (ROM32(outp[0]) == 0x00000000) 1615 break; /* seen on an NV11 with DCB v1.5 */ 1616 if (ROM32(outp[0]) == 0xffffffff) 1617 break; /* seen on an NV17 with DCB v2.0 */ 1618 1619 if ((outp[0] & 0x0f) == DCB_OUTPUT_UNUSED) 1620 continue; 1621 if ((outp[0] & 0x0f) == DCB_OUTPUT_EOL) 1622 break; 1623 1624 ret = exec(dev, data, idx, outp); 1625 if (ret) 1626 return ret; 1627 } 1628 1629 return 0; 1630 } 1631 1632 u8 * 1633 olddcb_conntab(struct drm_device *dev) 1634 { 1635 u8 *dcb = olddcb_table(dev); 1636 if (dcb && dcb[0] >= 0x30 && dcb[1] >= 0x16) { 1637 u8 *conntab = ROMPTR(dev, dcb[0x14]); 1638 if (conntab && conntab[0] >= 0x30 && conntab[0] <= 0x40) 1639 return conntab; 1640 } 1641 return NULL; 1642 } 1643 1644 u8 * 1645 olddcb_conn(struct drm_device *dev, u8 idx) 1646 { 1647 u8 *conntab = olddcb_conntab(dev); 1648 if (conntab && idx < conntab[2]) 1649 return conntab + conntab[1] + (idx * conntab[3]); 1650 return NULL; 1651 } 1652 1653 static struct dcb_output *new_dcb_entry(struct dcb_table *dcb) 1654 { 1655 struct dcb_output *entry = &dcb->entry[dcb->entries]; 1656 1657 memset(entry, 0, sizeof(struct dcb_output)); 1658 entry->index = dcb->entries++; 1659 1660 return entry; 1661 } 1662 1663 static void fabricate_dcb_output(struct dcb_table *dcb, int type, int i2c, 1664 int heads, int or) 1665 { 1666 struct dcb_output *entry = new_dcb_entry(dcb); 1667 1668 entry->type = type; 1669 entry->i2c_index = i2c; 1670 entry->heads = heads; 1671 if (type != DCB_OUTPUT_ANALOG) 1672 entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */ 1673 entry->or = or; 1674 } 1675 1676 static bool 1677 parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb, 1678 uint32_t conn, uint32_t conf, struct dcb_output *entry) 1679 { 1680 struct nouveau_drm *drm = nouveau_drm(dev); 1681 1682 entry->type = conn & 0xf; 1683 entry->i2c_index = (conn >> 4) & 0xf; 1684 entry->heads = (conn >> 8) & 0xf; 1685 entry->connector = (conn >> 12) & 0xf; 1686 entry->bus = (conn >> 16) & 0xf; 1687 entry->location = (conn >> 20) & 0x3; 1688 entry->or = (conn >> 24) & 0xf; 1689 1690 switch (entry->type) { 1691 case DCB_OUTPUT_ANALOG: 1692 /* 1693 * Although the rest of a CRT conf dword is usually 1694 * zeros, mac biosen have stuff there so we must mask 1695 */ 1696 entry->crtconf.maxfreq = (dcb->version < 0x30) ? 1697 (conf & 0xffff) * 10 : 1698 (conf & 0xff) * 10000; 1699 break; 1700 case DCB_OUTPUT_LVDS: 1701 { 1702 uint32_t mask; 1703 if (conf & 0x1) 1704 entry->lvdsconf.use_straps_for_mode = true; 1705 if (dcb->version < 0x22) { 1706 mask = ~0xd; 1707 /* 1708 * The laptop in bug 14567 lies and claims to not use 1709 * straps when it does, so assume all DCB 2.0 laptops 1710 * use straps, until a broken EDID using one is produced 1711 */ 1712 entry->lvdsconf.use_straps_for_mode = true; 1713 /* 1714 * Both 0x4 and 0x8 show up in v2.0 tables; assume they 1715 * mean the same thing (probably wrong, but might work) 1716 */ 1717 if (conf & 0x4 || conf & 0x8) 1718 entry->lvdsconf.use_power_scripts = true; 1719 } else { 1720 mask = ~0x7; 1721 if (conf & 0x2) 1722 entry->lvdsconf.use_acpi_for_edid = true; 1723 if (conf & 0x4) 1724 entry->lvdsconf.use_power_scripts = true; 1725 entry->lvdsconf.sor.link = (conf & 0x00000030) >> 4; 1726 } 1727 if (conf & mask) { 1728 /* 1729 * Until we even try to use these on G8x, it's 1730 * useless reporting unknown bits. They all are. 1731 */ 1732 if (dcb->version >= 0x40) 1733 break; 1734 1735 NV_ERROR(drm, "Unknown LVDS configuration bits, " 1736 "please report\n"); 1737 } 1738 break; 1739 } 1740 case DCB_OUTPUT_TV: 1741 { 1742 if (dcb->version >= 0x30) 1743 entry->tvconf.has_component_output = conf & (0x8 << 4); 1744 else 1745 entry->tvconf.has_component_output = false; 1746 1747 break; 1748 } 1749 case DCB_OUTPUT_DP: 1750 entry->dpconf.sor.link = (conf & 0x00000030) >> 4; 1751 switch ((conf & 0x00e00000) >> 21) { 1752 case 0: 1753 entry->dpconf.link_bw = 162000; 1754 break; 1755 default: 1756 entry->dpconf.link_bw = 270000; 1757 break; 1758 } 1759 switch ((conf & 0x0f000000) >> 24) { 1760 case 0xf: 1761 entry->dpconf.link_nr = 4; 1762 break; 1763 case 0x3: 1764 entry->dpconf.link_nr = 2; 1765 break; 1766 default: 1767 entry->dpconf.link_nr = 1; 1768 break; 1769 } 1770 break; 1771 case DCB_OUTPUT_TMDS: 1772 if (dcb->version >= 0x40) 1773 entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4; 1774 else if (dcb->version >= 0x30) 1775 entry->tmdsconf.slave_addr = (conf & 0x00000700) >> 8; 1776 else if (dcb->version >= 0x22) 1777 entry->tmdsconf.slave_addr = (conf & 0x00000070) >> 4; 1778 1779 break; 1780 case DCB_OUTPUT_EOL: 1781 /* weird g80 mobile type that "nv" treats as a terminator */ 1782 dcb->entries--; 1783 return false; 1784 default: 1785 break; 1786 } 1787 1788 if (dcb->version < 0x40) { 1789 /* Normal entries consist of a single bit, but dual link has 1790 * the next most significant bit set too 1791 */ 1792 entry->duallink_possible = 1793 ((1 << (ffs(entry->or) - 1)) * 3 == entry->or); 1794 } else { 1795 entry->duallink_possible = (entry->sorconf.link == 3); 1796 } 1797 1798 /* unsure what DCB version introduces this, 3.0? */ 1799 if (conf & 0x100000) 1800 entry->i2c_upper_default = true; 1801 1802 return true; 1803 } 1804 1805 static bool 1806 parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb, 1807 uint32_t conn, uint32_t conf, struct dcb_output *entry) 1808 { 1809 struct nouveau_drm *drm = nouveau_drm(dev); 1810 1811 switch (conn & 0x0000000f) { 1812 case 0: 1813 entry->type = DCB_OUTPUT_ANALOG; 1814 break; 1815 case 1: 1816 entry->type = DCB_OUTPUT_TV; 1817 break; 1818 case 2: 1819 case 4: 1820 if (conn & 0x10) 1821 entry->type = DCB_OUTPUT_LVDS; 1822 else 1823 entry->type = DCB_OUTPUT_TMDS; 1824 break; 1825 case 3: 1826 entry->type = DCB_OUTPUT_LVDS; 1827 break; 1828 default: 1829 NV_ERROR(drm, "Unknown DCB type %d\n", conn & 0x0000000f); 1830 return false; 1831 } 1832 1833 entry->i2c_index = (conn & 0x0003c000) >> 14; 1834 entry->heads = ((conn & 0x001c0000) >> 18) + 1; 1835 entry->or = entry->heads; /* same as heads, hopefully safe enough */ 1836 entry->location = (conn & 0x01e00000) >> 21; 1837 entry->bus = (conn & 0x0e000000) >> 25; 1838 entry->duallink_possible = false; 1839 1840 switch (entry->type) { 1841 case DCB_OUTPUT_ANALOG: 1842 entry->crtconf.maxfreq = (conf & 0xffff) * 10; 1843 break; 1844 case DCB_OUTPUT_TV: 1845 entry->tvconf.has_component_output = false; 1846 break; 1847 case DCB_OUTPUT_LVDS: 1848 if ((conn & 0x00003f00) >> 8 != 0x10) 1849 entry->lvdsconf.use_straps_for_mode = true; 1850 entry->lvdsconf.use_power_scripts = true; 1851 break; 1852 default: 1853 break; 1854 } 1855 1856 return true; 1857 } 1858 1859 static 1860 void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb) 1861 { 1862 /* 1863 * DCB v2.0 lists each output combination separately. 1864 * Here we merge compatible entries to have fewer outputs, with 1865 * more options 1866 */ 1867 1868 struct nouveau_drm *drm = nouveau_drm(dev); 1869 int i, newentries = 0; 1870 1871 for (i = 0; i < dcb->entries; i++) { 1872 struct dcb_output *ient = &dcb->entry[i]; 1873 int j; 1874 1875 for (j = i + 1; j < dcb->entries; j++) { 1876 struct dcb_output *jent = &dcb->entry[j]; 1877 1878 if (jent->type == 100) /* already merged entry */ 1879 continue; 1880 1881 /* merge heads field when all other fields the same */ 1882 if (jent->i2c_index == ient->i2c_index && 1883 jent->type == ient->type && 1884 jent->location == ient->location && 1885 jent->or == ient->or) { 1886 NV_INFO(drm, "Merging DCB entries %d and %d\n", 1887 i, j); 1888 ient->heads |= jent->heads; 1889 jent->type = 100; /* dummy value */ 1890 } 1891 } 1892 } 1893 1894 /* Compact entries merged into others out of dcb */ 1895 for (i = 0; i < dcb->entries; i++) { 1896 if (dcb->entry[i].type == 100) 1897 continue; 1898 1899 if (newentries != i) { 1900 dcb->entry[newentries] = dcb->entry[i]; 1901 dcb->entry[newentries].index = newentries; 1902 } 1903 newentries++; 1904 } 1905 1906 dcb->entries = newentries; 1907 } 1908 1909 static bool 1910 apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf) 1911 { 1912 struct nouveau_drm *drm = nouveau_drm(dev); 1913 struct dcb_table *dcb = &drm->vbios.dcb; 1914 1915 /* Dell Precision M6300 1916 * DCB entry 2: 02025312 00000010 1917 * DCB entry 3: 02026312 00000020 1918 * 1919 * Identical, except apparently a different connector on a 1920 * different SOR link. Not a clue how we're supposed to know 1921 * which one is in use if it even shares an i2c line... 1922 * 1923 * Ignore the connector on the second SOR link to prevent 1924 * nasty problems until this is sorted (assuming it's not a 1925 * VBIOS bug). 1926 */ 1927 if (nv_match_device(dev, 0x040d, 0x1028, 0x019b)) { 1928 if (*conn == 0x02026312 && *conf == 0x00000020) 1929 return false; 1930 } 1931 1932 /* GeForce3 Ti 200 1933 * 1934 * DCB reports an LVDS output that should be TMDS: 1935 * DCB entry 1: f2005014 ffffffff 1936 */ 1937 if (nv_match_device(dev, 0x0201, 0x1462, 0x8851)) { 1938 if (*conn == 0xf2005014 && *conf == 0xffffffff) { 1939 fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, 1, 1); 1940 return false; 1941 } 1942 } 1943 1944 /* XFX GT-240X-YA 1945 * 1946 * So many things wrong here, replace the entire encoder table.. 1947 */ 1948 if (nv_match_device(dev, 0x0ca3, 0x1682, 0x3003)) { 1949 if (idx == 0) { 1950 *conn = 0x02001300; /* VGA, connector 1 */ 1951 *conf = 0x00000028; 1952 } else 1953 if (idx == 1) { 1954 *conn = 0x01010312; /* DVI, connector 0 */ 1955 *conf = 0x00020030; 1956 } else 1957 if (idx == 2) { 1958 *conn = 0x01010310; /* VGA, connector 0 */ 1959 *conf = 0x00000028; 1960 } else 1961 if (idx == 3) { 1962 *conn = 0x02022362; /* HDMI, connector 2 */ 1963 *conf = 0x00020010; 1964 } else { 1965 *conn = 0x0000000e; /* EOL */ 1966 *conf = 0x00000000; 1967 } 1968 } 1969 1970 /* Some other twisted XFX board (rhbz#694914) 1971 * 1972 * The DVI/VGA encoder combo that's supposed to represent the 1973 * DVI-I connector actually point at two different ones, and 1974 * the HDMI connector ends up paired with the VGA instead. 1975 * 1976 * Connector table is missing anything for VGA at all, pointing it 1977 * an invalid conntab entry 2 so we figure it out ourself. 1978 */ 1979 if (nv_match_device(dev, 0x0615, 0x1682, 0x2605)) { 1980 if (idx == 0) { 1981 *conn = 0x02002300; /* VGA, connector 2 */ 1982 *conf = 0x00000028; 1983 } else 1984 if (idx == 1) { 1985 *conn = 0x01010312; /* DVI, connector 0 */ 1986 *conf = 0x00020030; 1987 } else 1988 if (idx == 2) { 1989 *conn = 0x04020310; /* VGA, connector 0 */ 1990 *conf = 0x00000028; 1991 } else 1992 if (idx == 3) { 1993 *conn = 0x02021322; /* HDMI, connector 1 */ 1994 *conf = 0x00020010; 1995 } else { 1996 *conn = 0x0000000e; /* EOL */ 1997 *conf = 0x00000000; 1998 } 1999 } 2000 2001 /* fdo#50830: connector indices for VGA and DVI-I are backwards */ 2002 if (nv_match_device(dev, 0x0421, 0x3842, 0xc793)) { 2003 if (idx == 0 && *conn == 0x02000300) 2004 *conn = 0x02011300; 2005 else 2006 if (idx == 1 && *conn == 0x04011310) 2007 *conn = 0x04000310; 2008 else 2009 if (idx == 2 && *conn == 0x02011312) 2010 *conn = 0x02000312; 2011 } 2012 2013 return true; 2014 } 2015 2016 static void 2017 fabricate_dcb_encoder_table(struct drm_device *dev, struct nvbios *bios) 2018 { 2019 struct dcb_table *dcb = &bios->dcb; 2020 int all_heads = (nv_two_heads(dev) ? 3 : 1); 2021 2022 #ifdef __powerpc__ 2023 /* Apple iMac G4 NV17 */ 2024 if (of_machine_is_compatible("PowerMac4,5")) { 2025 fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 0, all_heads, 1); 2026 fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG, 1, all_heads, 2); 2027 return; 2028 } 2029 #endif 2030 2031 /* Make up some sane defaults */ 2032 fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG, 2033 bios->legacy.i2c_indices.crt, 1, 1); 2034 2035 if (nv04_tv_identify(dev, bios->legacy.i2c_indices.tv) >= 0) 2036 fabricate_dcb_output(dcb, DCB_OUTPUT_TV, 2037 bios->legacy.i2c_indices.tv, 2038 all_heads, 0); 2039 2040 else if (bios->tmds.output0_script_ptr || 2041 bios->tmds.output1_script_ptr) 2042 fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 2043 bios->legacy.i2c_indices.panel, 2044 all_heads, 1); 2045 } 2046 2047 static int 2048 parse_dcb_entry(struct drm_device *dev, void *data, int idx, u8 *outp) 2049 { 2050 struct nouveau_drm *drm = nouveau_drm(dev); 2051 struct dcb_table *dcb = &drm->vbios.dcb; 2052 u32 conf = (dcb->version >= 0x20) ? ROM32(outp[4]) : ROM32(outp[6]); 2053 u32 conn = ROM32(outp[0]); 2054 bool ret; 2055 2056 if (apply_dcb_encoder_quirks(dev, idx, &conn, &conf)) { 2057 struct dcb_output *entry = new_dcb_entry(dcb); 2058 2059 NV_INFO(drm, "DCB outp %02d: %08x %08x\n", idx, conn, conf); 2060 2061 if (dcb->version >= 0x20) 2062 ret = parse_dcb20_entry(dev, dcb, conn, conf, entry); 2063 else 2064 ret = parse_dcb15_entry(dev, dcb, conn, conf, entry); 2065 if (!ret) 2066 return 1; /* stop parsing */ 2067 2068 /* Ignore the I2C index for on-chip TV-out, as there 2069 * are cards with bogus values (nv31m in bug 23212), 2070 * and it's otherwise useless. 2071 */ 2072 if (entry->type == DCB_OUTPUT_TV && 2073 entry->location == DCB_LOC_ON_CHIP) 2074 entry->i2c_index = 0x0f; 2075 } 2076 2077 return 0; 2078 } 2079 2080 static void 2081 dcb_fake_connectors(struct nvbios *bios) 2082 { 2083 struct dcb_table *dcbt = &bios->dcb; 2084 u8 map[16] = { }; 2085 int i, idx = 0; 2086 2087 /* heuristic: if we ever get a non-zero connector field, assume 2088 * that all the indices are valid and we don't need fake them. 2089 * 2090 * and, as usual, a blacklist of boards with bad bios data.. 2091 */ 2092 if (!nv_match_device(bios->dev, 0x0392, 0x107d, 0x20a2)) { 2093 for (i = 0; i < dcbt->entries; i++) { 2094 if (dcbt->entry[i].connector) 2095 return; 2096 } 2097 } 2098 2099 /* no useful connector info available, we need to make it up 2100 * ourselves. the rule here is: anything on the same i2c bus 2101 * is considered to be on the same connector. any output 2102 * without an associated i2c bus is assigned its own unique 2103 * connector index. 2104 */ 2105 for (i = 0; i < dcbt->entries; i++) { 2106 u8 i2c = dcbt->entry[i].i2c_index; 2107 if (i2c == 0x0f) { 2108 dcbt->entry[i].connector = idx++; 2109 } else { 2110 if (!map[i2c]) 2111 map[i2c] = ++idx; 2112 dcbt->entry[i].connector = map[i2c] - 1; 2113 } 2114 } 2115 2116 /* if we created more than one connector, destroy the connector 2117 * table - just in case it has random, rather than stub, entries. 2118 */ 2119 if (i > 1) { 2120 u8 *conntab = olddcb_conntab(bios->dev); 2121 if (conntab) 2122 conntab[0] = 0x00; 2123 } 2124 } 2125 2126 static int 2127 parse_dcb_table(struct drm_device *dev, struct nvbios *bios) 2128 { 2129 struct nouveau_drm *drm = nouveau_drm(dev); 2130 struct dcb_table *dcb = &bios->dcb; 2131 u8 *dcbt, *conn; 2132 int idx; 2133 2134 dcbt = olddcb_table(dev); 2135 if (!dcbt) { 2136 /* handle pre-DCB boards */ 2137 if (bios->type == NVBIOS_BMP) { 2138 fabricate_dcb_encoder_table(dev, bios); 2139 return 0; 2140 } 2141 2142 return -EINVAL; 2143 } 2144 2145 NV_INFO(drm, "DCB version %d.%d\n", dcbt[0] >> 4, dcbt[0] & 0xf); 2146 2147 dcb->version = dcbt[0]; 2148 olddcb_outp_foreach(dev, NULL, parse_dcb_entry); 2149 2150 /* 2151 * apart for v2.1+ not being known for requiring merging, this 2152 * guarantees dcbent->index is the index of the entry in the rom image 2153 */ 2154 if (dcb->version < 0x21) 2155 merge_like_dcb_entries(dev, dcb); 2156 2157 if (!dcb->entries) 2158 return -ENXIO; 2159 2160 /* dump connector table entries to log, if any exist */ 2161 idx = -1; 2162 while ((conn = olddcb_conn(dev, ++idx))) { 2163 if (conn[0] != 0xff) { 2164 NV_INFO(drm, "DCB conn %02d: ", idx); 2165 if (olddcb_conntab(dev)[3] < 4) 2166 printk("%04x\n", ROM16(conn[0])); 2167 else 2168 printk("%08x\n", ROM32(conn[0])); 2169 } 2170 } 2171 dcb_fake_connectors(bios); 2172 return 0; 2173 } 2174 2175 static int load_nv17_hwsq_ucode_entry(struct drm_device *dev, struct nvbios *bios, uint16_t hwsq_offset, int entry) 2176 { 2177 /* 2178 * The header following the "HWSQ" signature has the number of entries, 2179 * and the entry size 2180 * 2181 * An entry consists of a dword to write to the sequencer control reg 2182 * (0x00001304), followed by the ucode bytes, written sequentially, 2183 * starting at reg 0x00001400 2184 */ 2185 2186 struct nouveau_drm *drm = nouveau_drm(dev); 2187 struct nouveau_device *device = nv_device(drm->device); 2188 uint8_t bytes_to_write; 2189 uint16_t hwsq_entry_offset; 2190 int i; 2191 2192 if (bios->data[hwsq_offset] <= entry) { 2193 NV_ERROR(drm, "Too few entries in HW sequencer table for " 2194 "requested entry\n"); 2195 return -ENOENT; 2196 } 2197 2198 bytes_to_write = bios->data[hwsq_offset + 1]; 2199 2200 if (bytes_to_write != 36) { 2201 NV_ERROR(drm, "Unknown HW sequencer entry size\n"); 2202 return -EINVAL; 2203 } 2204 2205 NV_INFO(drm, "Loading NV17 power sequencing microcode\n"); 2206 2207 hwsq_entry_offset = hwsq_offset + 2 + entry * bytes_to_write; 2208 2209 /* set sequencer control */ 2210 nv_wr32(device, 0x00001304, ROM32(bios->data[hwsq_entry_offset])); 2211 bytes_to_write -= 4; 2212 2213 /* write ucode */ 2214 for (i = 0; i < bytes_to_write; i += 4) 2215 nv_wr32(device, 0x00001400 + i, ROM32(bios->data[hwsq_entry_offset + i + 4])); 2216 2217 /* twiddle NV_PBUS_DEBUG_4 */ 2218 nv_wr32(device, NV_PBUS_DEBUG_4, nv_rd32(device, NV_PBUS_DEBUG_4) | 0x18); 2219 2220 return 0; 2221 } 2222 2223 static int load_nv17_hw_sequencer_ucode(struct drm_device *dev, 2224 struct nvbios *bios) 2225 { 2226 /* 2227 * BMP based cards, from NV17, need a microcode loading to correctly 2228 * control the GPIO etc for LVDS panels 2229 * 2230 * BIT based cards seem to do this directly in the init scripts 2231 * 2232 * The microcode entries are found by the "HWSQ" signature. 2233 */ 2234 2235 const uint8_t hwsq_signature[] = { 'H', 'W', 'S', 'Q' }; 2236 const int sz = sizeof(hwsq_signature); 2237 int hwsq_offset; 2238 2239 hwsq_offset = findstr(bios->data, bios->length, hwsq_signature, sz); 2240 if (!hwsq_offset) 2241 return 0; 2242 2243 /* always use entry 0? */ 2244 return load_nv17_hwsq_ucode_entry(dev, bios, hwsq_offset + sz, 0); 2245 } 2246 2247 uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev) 2248 { 2249 struct nouveau_drm *drm = nouveau_drm(dev); 2250 struct nvbios *bios = &drm->vbios; 2251 const uint8_t edid_sig[] = { 2252 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 }; 2253 uint16_t offset = 0; 2254 uint16_t newoffset; 2255 int searchlen = NV_PROM_SIZE; 2256 2257 if (bios->fp.edid) 2258 return bios->fp.edid; 2259 2260 while (searchlen) { 2261 newoffset = findstr(&bios->data[offset], searchlen, 2262 edid_sig, 8); 2263 if (!newoffset) 2264 return NULL; 2265 offset += newoffset; 2266 if (!nv_cksum(&bios->data[offset], EDID1_LEN)) 2267 break; 2268 2269 searchlen -= offset; 2270 offset++; 2271 } 2272 2273 NV_INFO(drm, "Found EDID in BIOS\n"); 2274 2275 return bios->fp.edid = &bios->data[offset]; 2276 } 2277 2278 static bool NVInitVBIOS(struct drm_device *dev) 2279 { 2280 struct nouveau_drm *drm = nouveau_drm(dev); 2281 struct nvbios *bios = &drm->vbios; 2282 2283 memset(bios, 0, sizeof(struct nvbios)); 2284 spin_lock_init(&bios->lock); 2285 bios->dev = dev; 2286 2287 bios->data = nouveau_bios(drm->device)->data; 2288 bios->length = nouveau_bios(drm->device)->size; 2289 return true; 2290 } 2291 2292 static int nouveau_parse_vbios_struct(struct drm_device *dev) 2293 { 2294 struct nouveau_drm *drm = nouveau_drm(dev); 2295 struct nvbios *bios = &drm->vbios; 2296 const uint8_t bit_signature[] = { 0xff, 0xb8, 'B', 'I', 'T' }; 2297 const uint8_t bmp_signature[] = { 0xff, 0x7f, 'N', 'V', 0x0 }; 2298 int offset; 2299 2300 offset = findstr(bios->data, bios->length, 2301 bit_signature, sizeof(bit_signature)); 2302 if (offset) { 2303 NV_INFO(drm, "BIT BIOS found\n"); 2304 bios->type = NVBIOS_BIT; 2305 bios->offset = offset; 2306 return parse_bit_structure(bios, offset + 6); 2307 } 2308 2309 offset = findstr(bios->data, bios->length, 2310 bmp_signature, sizeof(bmp_signature)); 2311 if (offset) { 2312 NV_INFO(drm, "BMP BIOS found\n"); 2313 bios->type = NVBIOS_BMP; 2314 bios->offset = offset; 2315 return parse_bmp_structure(dev, bios, offset); 2316 } 2317 2318 NV_ERROR(drm, "No known BIOS signature found\n"); 2319 return -ENODEV; 2320 } 2321 2322 int 2323 nouveau_run_vbios_init(struct drm_device *dev) 2324 { 2325 struct nouveau_drm *drm = nouveau_drm(dev); 2326 struct nvbios *bios = &drm->vbios; 2327 int i, ret = 0; 2328 2329 /* Reset the BIOS head to 0. */ 2330 bios->state.crtchead = 0; 2331 2332 if (bios->major_version < 5) /* BMP only */ 2333 load_nv17_hw_sequencer_ucode(dev, bios); 2334 2335 if (bios->execute) { 2336 bios->fp.last_script_invoc = 0; 2337 bios->fp.lvds_init_run = false; 2338 } 2339 2340 if (nv_device(drm->device)->card_type >= NV_50) { 2341 for (i = 0; bios->execute && i < bios->dcb.entries; i++) { 2342 nouveau_bios_run_display_table(dev, 0, 0, 2343 &bios->dcb.entry[i], -1); 2344 } 2345 } 2346 2347 return ret; 2348 } 2349 2350 static bool 2351 nouveau_bios_posted(struct drm_device *dev) 2352 { 2353 struct nouveau_drm *drm = nouveau_drm(dev); 2354 unsigned htotal; 2355 2356 if (nv_device(drm->device)->card_type >= NV_50) { 2357 if (NVReadVgaCrtc(dev, 0, 0x00) == 0 && 2358 NVReadVgaCrtc(dev, 0, 0x1a) == 0) 2359 return false; 2360 return true; 2361 } 2362 2363 htotal = NVReadVgaCrtc(dev, 0, 0x06); 2364 htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x01) << 8; 2365 htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x20) << 4; 2366 htotal |= (NVReadVgaCrtc(dev, 0, 0x25) & 0x01) << 10; 2367 htotal |= (NVReadVgaCrtc(dev, 0, 0x41) & 0x01) << 11; 2368 2369 return (htotal != 0); 2370 } 2371 2372 int 2373 nouveau_bios_init(struct drm_device *dev) 2374 { 2375 struct nouveau_drm *drm = nouveau_drm(dev); 2376 struct nvbios *bios = &drm->vbios; 2377 int ret; 2378 2379 if (!NVInitVBIOS(dev)) 2380 return -ENODEV; 2381 2382 ret = nouveau_parse_vbios_struct(dev); 2383 if (ret) 2384 return ret; 2385 2386 ret = parse_dcb_table(dev, bios); 2387 if (ret) 2388 return ret; 2389 2390 if (!bios->major_version) /* we don't run version 0 bios */ 2391 return 0; 2392 2393 /* init script execution disabled */ 2394 bios->execute = false; 2395 2396 /* ... unless card isn't POSTed already */ 2397 if (!nouveau_bios_posted(dev)) { 2398 NV_INFO(drm, "Adaptor not initialised, " 2399 "running VBIOS init tables.\n"); 2400 bios->execute = true; 2401 } 2402 2403 ret = nouveau_run_vbios_init(dev); 2404 if (ret) 2405 return ret; 2406 2407 /* feature_byte on BMP is poor, but init always sets CR4B */ 2408 if (bios->major_version < 5) 2409 bios->is_mobile = NVReadVgaCrtc(dev, 0, NV_CIO_CRE_4B) & 0x40; 2410 2411 /* all BIT systems need p_f_m_t for digital_min_front_porch */ 2412 if (bios->is_mobile || bios->major_version >= 5) 2413 ret = parse_fp_mode_table(dev, bios); 2414 2415 /* allow subsequent scripts to execute */ 2416 bios->execute = true; 2417 2418 return 0; 2419 } 2420 2421 void 2422 nouveau_bios_takedown(struct drm_device *dev) 2423 { 2424 } 2425