nouveau_bios.c revision 1a6463425552a8b9960e5a19b25421895846925c
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 "dispnv04/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 47struct init_exec { 48 bool execute; 49 bool repeat; 50}; 51 52static 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 70static 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 96static void 97run_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 111static 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 138static 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 211int 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 260struct lvdstableheader { 261 uint8_t lvds_ver, headerlen, recordlen; 262}; 263 264static 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 320static int 321get_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 343static 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 450bool 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 496int 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 627int run_tmds_table(struct drm_device *dev, struct dcb_output *dcbent, int head, int pxclk) 628{ 629 /* 630 * the pxclk parameter is in kHz 631 * 632 * This runs the TMDS regs setting code found on BIT bios cards 633 * 634 * For ffs(or) == 1 use the first table, for ffs(or) == 2 and 635 * ffs(or) == 3, use the second. 636 */ 637 638 struct nouveau_drm *drm = nouveau_drm(dev); 639 struct nouveau_device *device = nv_device(drm->device); 640 struct nvbios *bios = &drm->vbios; 641 int cv = bios->chip_version; 642 uint16_t clktable = 0, scriptptr; 643 uint32_t sel_clk_binding, sel_clk; 644 645 /* pre-nv17 off-chip tmds uses scripts, post nv17 doesn't */ 646 if (cv >= 0x17 && cv != 0x1a && cv != 0x20 && 647 dcbent->location != DCB_LOC_ON_CHIP) 648 return 0; 649 650 switch (ffs(dcbent->or)) { 651 case 1: 652 clktable = bios->tmds.output0_script_ptr; 653 break; 654 case 2: 655 case 3: 656 clktable = bios->tmds.output1_script_ptr; 657 break; 658 } 659 660 if (!clktable) { 661 NV_ERROR(drm, "Pixel clock comparison table not found\n"); 662 return -EINVAL; 663 } 664 665 scriptptr = clkcmptable(bios, clktable, pxclk); 666 667 if (!scriptptr) { 668 NV_ERROR(drm, "TMDS output init script not found\n"); 669 return -ENOENT; 670 } 671 672 /* don't let script change pll->head binding */ 673 sel_clk_binding = nv_rd32(device, NV_PRAMDAC_SEL_CLK) & 0x50000; 674 run_digital_op_script(dev, scriptptr, dcbent, head, pxclk >= 165000); 675 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000; 676 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding); 677 678 return 0; 679} 680 681static void parse_script_table_pointers(struct nvbios *bios, uint16_t offset) 682{ 683 /* 684 * Parses the init table segment for pointers used in script execution. 685 * 686 * offset + 0 (16 bits): init script tables pointer 687 * offset + 2 (16 bits): macro index table pointer 688 * offset + 4 (16 bits): macro table pointer 689 * offset + 6 (16 bits): condition table pointer 690 * offset + 8 (16 bits): io condition table pointer 691 * offset + 10 (16 bits): io flag condition table pointer 692 * offset + 12 (16 bits): init function table pointer 693 */ 694 695 bios->init_script_tbls_ptr = ROM16(bios->data[offset]); 696} 697 698static int parse_bit_A_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 699{ 700 /* 701 * Parses the load detect values for g80 cards. 702 * 703 * offset + 0 (16 bits): loadval table pointer 704 */ 705 706 struct nouveau_drm *drm = nouveau_drm(dev); 707 uint16_t load_table_ptr; 708 uint8_t version, headerlen, entrylen, num_entries; 709 710 if (bitentry->length != 3) { 711 NV_ERROR(drm, "Do not understand BIT A table\n"); 712 return -EINVAL; 713 } 714 715 load_table_ptr = ROM16(bios->data[bitentry->offset]); 716 717 if (load_table_ptr == 0x0) { 718 NV_DEBUG(drm, "Pointer to BIT loadval table invalid\n"); 719 return -EINVAL; 720 } 721 722 version = bios->data[load_table_ptr]; 723 724 if (version != 0x10) { 725 NV_ERROR(drm, "BIT loadval table version %d.%d not supported\n", 726 version >> 4, version & 0xF); 727 return -ENOSYS; 728 } 729 730 headerlen = bios->data[load_table_ptr + 1]; 731 entrylen = bios->data[load_table_ptr + 2]; 732 num_entries = bios->data[load_table_ptr + 3]; 733 734 if (headerlen != 4 || entrylen != 4 || num_entries != 2) { 735 NV_ERROR(drm, "Do not understand BIT loadval table\n"); 736 return -EINVAL; 737 } 738 739 /* First entry is normal dac, 2nd tv-out perhaps? */ 740 bios->dactestval = ROM32(bios->data[load_table_ptr + headerlen]) & 0x3ff; 741 742 return 0; 743} 744 745static int parse_bit_display_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 746{ 747 /* 748 * Parses the flat panel table segment that the bit entry points to. 749 * Starting at bitentry->offset: 750 * 751 * offset + 0 (16 bits): ??? table pointer - seems to have 18 byte 752 * records beginning with a freq. 753 * offset + 2 (16 bits): mode table pointer 754 */ 755 struct nouveau_drm *drm = nouveau_drm(dev); 756 757 if (bitentry->length != 4) { 758 NV_ERROR(drm, "Do not understand BIT display table\n"); 759 return -EINVAL; 760 } 761 762 bios->fp.fptablepointer = ROM16(bios->data[bitentry->offset + 2]); 763 764 return 0; 765} 766 767static int parse_bit_init_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 768{ 769 /* 770 * Parses the init table segment that the bit entry points to. 771 * 772 * See parse_script_table_pointers for layout 773 */ 774 struct nouveau_drm *drm = nouveau_drm(dev); 775 776 if (bitentry->length < 14) { 777 NV_ERROR(drm, "Do not understand init table\n"); 778 return -EINVAL; 779 } 780 781 parse_script_table_pointers(bios, bitentry->offset); 782 return 0; 783} 784 785static int parse_bit_i_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 786{ 787 /* 788 * BIT 'i' (info?) table 789 * 790 * offset + 0 (32 bits): BIOS version dword (as in B table) 791 * offset + 5 (8 bits): BIOS feature byte (same as for BMP?) 792 * offset + 13 (16 bits): pointer to table containing DAC load 793 * detection comparison values 794 * 795 * There's other things in the table, purpose unknown 796 */ 797 798 struct nouveau_drm *drm = nouveau_drm(dev); 799 uint16_t daccmpoffset; 800 uint8_t dacver, dacheaderlen; 801 802 if (bitentry->length < 6) { 803 NV_ERROR(drm, "BIT i table too short for needed information\n"); 804 return -EINVAL; 805 } 806 807 /* 808 * bit 4 seems to indicate a mobile bios (doesn't suffer from BMP's 809 * Quadro identity crisis), other bits possibly as for BMP feature byte 810 */ 811 bios->feature_byte = bios->data[bitentry->offset + 5]; 812 bios->is_mobile = bios->feature_byte & FEATURE_MOBILE; 813 814 if (bitentry->length < 15) { 815 NV_WARN(drm, "BIT i table not long enough for DAC load " 816 "detection comparison table\n"); 817 return -EINVAL; 818 } 819 820 daccmpoffset = ROM16(bios->data[bitentry->offset + 13]); 821 822 /* doesn't exist on g80 */ 823 if (!daccmpoffset) 824 return 0; 825 826 /* 827 * The first value in the table, following the header, is the 828 * comparison value, the second entry is a comparison value for 829 * TV load detection. 830 */ 831 832 dacver = bios->data[daccmpoffset]; 833 dacheaderlen = bios->data[daccmpoffset + 1]; 834 835 if (dacver != 0x00 && dacver != 0x10) { 836 NV_WARN(drm, "DAC load detection comparison table version " 837 "%d.%d not known\n", dacver >> 4, dacver & 0xf); 838 return -ENOSYS; 839 } 840 841 bios->dactestval = ROM32(bios->data[daccmpoffset + dacheaderlen]); 842 bios->tvdactestval = ROM32(bios->data[daccmpoffset + dacheaderlen + 4]); 843 844 return 0; 845} 846 847static int parse_bit_lvds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 848{ 849 /* 850 * Parses the LVDS table segment that the bit entry points to. 851 * Starting at bitentry->offset: 852 * 853 * offset + 0 (16 bits): LVDS strap xlate table pointer 854 */ 855 856 struct nouveau_drm *drm = nouveau_drm(dev); 857 858 if (bitentry->length != 2) { 859 NV_ERROR(drm, "Do not understand BIT LVDS table\n"); 860 return -EINVAL; 861 } 862 863 /* 864 * No idea if it's still called the LVDS manufacturer table, but 865 * the concept's close enough. 866 */ 867 bios->fp.lvdsmanufacturerpointer = ROM16(bios->data[bitentry->offset]); 868 869 return 0; 870} 871 872static int 873parse_bit_M_tbl_entry(struct drm_device *dev, struct nvbios *bios, 874 struct bit_entry *bitentry) 875{ 876 /* 877 * offset + 2 (8 bits): number of options in an 878 * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode option set 879 * offset + 3 (16 bits): pointer to strap xlate table for RAM 880 * restrict option selection 881 * 882 * There's a bunch of bits in this table other than the RAM restrict 883 * stuff that we don't use - their use currently unknown 884 */ 885 886 /* 887 * Older bios versions don't have a sufficiently long table for 888 * what we want 889 */ 890 if (bitentry->length < 0x5) 891 return 0; 892 893 if (bitentry->version < 2) { 894 bios->ram_restrict_group_count = bios->data[bitentry->offset + 2]; 895 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 3]); 896 } else { 897 bios->ram_restrict_group_count = bios->data[bitentry->offset + 0]; 898 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 1]); 899 } 900 901 return 0; 902} 903 904static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 905{ 906 /* 907 * Parses the pointer to the TMDS table 908 * 909 * Starting at bitentry->offset: 910 * 911 * offset + 0 (16 bits): TMDS table pointer 912 * 913 * The TMDS table is typically found just before the DCB table, with a 914 * characteristic signature of 0x11,0x13 (1.1 being version, 0x13 being 915 * length?) 916 * 917 * At offset +7 is a pointer to a script, which I don't know how to 918 * run yet. 919 * At offset +9 is a pointer to another script, likewise 920 * Offset +11 has a pointer to a table where the first word is a pxclk 921 * frequency and the second word a pointer to a script, which should be 922 * run if the comparison pxclk frequency is less than the pxclk desired. 923 * This repeats for decreasing comparison frequencies 924 * Offset +13 has a pointer to a similar table 925 * The selection of table (and possibly +7/+9 script) is dictated by 926 * "or" from the DCB. 927 */ 928 929 struct nouveau_drm *drm = nouveau_drm(dev); 930 uint16_t tmdstableptr, script1, script2; 931 932 if (bitentry->length != 2) { 933 NV_ERROR(drm, "Do not understand BIT TMDS table\n"); 934 return -EINVAL; 935 } 936 937 tmdstableptr = ROM16(bios->data[bitentry->offset]); 938 if (!tmdstableptr) { 939 NV_ERROR(drm, "Pointer to TMDS table invalid\n"); 940 return -EINVAL; 941 } 942 943 NV_INFO(drm, "TMDS table version %d.%d\n", 944 bios->data[tmdstableptr] >> 4, bios->data[tmdstableptr] & 0xf); 945 946 /* nv50+ has v2.0, but we don't parse it atm */ 947 if (bios->data[tmdstableptr] != 0x11) 948 return -ENOSYS; 949 950 /* 951 * These two scripts are odd: they don't seem to get run even when 952 * they are not stubbed. 953 */ 954 script1 = ROM16(bios->data[tmdstableptr + 7]); 955 script2 = ROM16(bios->data[tmdstableptr + 9]); 956 if (bios->data[script1] != 'q' || bios->data[script2] != 'q') 957 NV_WARN(drm, "TMDS table script pointers not stubbed\n"); 958 959 bios->tmds.output0_script_ptr = ROM16(bios->data[tmdstableptr + 11]); 960 bios->tmds.output1_script_ptr = ROM16(bios->data[tmdstableptr + 13]); 961 962 return 0; 963} 964 965struct bit_table { 966 const char id; 967 int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *); 968}; 969 970#define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry }) 971 972int 973bit_table(struct drm_device *dev, u8 id, struct bit_entry *bit) 974{ 975 struct nouveau_drm *drm = nouveau_drm(dev); 976 struct nvbios *bios = &drm->vbios; 977 u8 entries, *entry; 978 979 if (bios->type != NVBIOS_BIT) 980 return -ENODEV; 981 982 entries = bios->data[bios->offset + 10]; 983 entry = &bios->data[bios->offset + 12]; 984 while (entries--) { 985 if (entry[0] == id) { 986 bit->id = entry[0]; 987 bit->version = entry[1]; 988 bit->length = ROM16(entry[2]); 989 bit->offset = ROM16(entry[4]); 990 bit->data = ROMPTR(dev, entry[4]); 991 return 0; 992 } 993 994 entry += bios->data[bios->offset + 9]; 995 } 996 997 return -ENOENT; 998} 999 1000static int 1001parse_bit_table(struct nvbios *bios, const uint16_t bitoffset, 1002 struct bit_table *table) 1003{ 1004 struct drm_device *dev = bios->dev; 1005 struct nouveau_drm *drm = nouveau_drm(dev); 1006 struct bit_entry bitentry; 1007 1008 if (bit_table(dev, table->id, &bitentry) == 0) 1009 return table->parse_fn(dev, bios, &bitentry); 1010 1011 NV_INFO(drm, "BIT table '%c' not found\n", table->id); 1012 return -ENOSYS; 1013} 1014 1015static int 1016parse_bit_structure(struct nvbios *bios, const uint16_t bitoffset) 1017{ 1018 int ret; 1019 1020 /* 1021 * The only restriction on parsing order currently is having 'i' first 1022 * for use of bios->*_version or bios->feature_byte while parsing; 1023 * functions shouldn't be actually *doing* anything apart from pulling 1024 * data from the image into the bios struct, thus no interdependencies 1025 */ 1026 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('i', i)); 1027 if (ret) /* info? */ 1028 return ret; 1029 if (bios->major_version >= 0x60) /* g80+ */ 1030 parse_bit_table(bios, bitoffset, &BIT_TABLE('A', A)); 1031 parse_bit_table(bios, bitoffset, &BIT_TABLE('D', display)); 1032 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('I', init)); 1033 if (ret) 1034 return ret; 1035 parse_bit_table(bios, bitoffset, &BIT_TABLE('M', M)); /* memory? */ 1036 parse_bit_table(bios, bitoffset, &BIT_TABLE('L', lvds)); 1037 parse_bit_table(bios, bitoffset, &BIT_TABLE('T', tmds)); 1038 1039 return 0; 1040} 1041 1042static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsigned int offset) 1043{ 1044 /* 1045 * Parses the BMP structure for useful things, but does not act on them 1046 * 1047 * offset + 5: BMP major version 1048 * offset + 6: BMP minor version 1049 * offset + 9: BMP feature byte 1050 * offset + 10: BCD encoded BIOS version 1051 * 1052 * offset + 18: init script table pointer (for bios versions < 5.10h) 1053 * offset + 20: extra init script table pointer (for bios 1054 * versions < 5.10h) 1055 * 1056 * offset + 24: memory init table pointer (used on early bios versions) 1057 * offset + 26: SDR memory sequencing setup data table 1058 * offset + 28: DDR memory sequencing setup data table 1059 * 1060 * offset + 54: index of I2C CRTC pair to use for CRT output 1061 * offset + 55: index of I2C CRTC pair to use for TV output 1062 * offset + 56: index of I2C CRTC pair to use for flat panel output 1063 * offset + 58: write CRTC index for I2C pair 0 1064 * offset + 59: read CRTC index for I2C pair 0 1065 * offset + 60: write CRTC index for I2C pair 1 1066 * offset + 61: read CRTC index for I2C pair 1 1067 * 1068 * offset + 67: maximum internal PLL frequency (single stage PLL) 1069 * offset + 71: minimum internal PLL frequency (single stage PLL) 1070 * 1071 * offset + 75: script table pointers, as described in 1072 * parse_script_table_pointers 1073 * 1074 * offset + 89: TMDS single link output A table pointer 1075 * offset + 91: TMDS single link output B table pointer 1076 * offset + 95: LVDS single link output A table pointer 1077 * offset + 105: flat panel timings table pointer 1078 * offset + 107: flat panel strapping translation table pointer 1079 * offset + 117: LVDS manufacturer panel config table pointer 1080 * offset + 119: LVDS manufacturer strapping translation table pointer 1081 * 1082 * offset + 142: PLL limits table pointer 1083 * 1084 * offset + 156: minimum pixel clock for LVDS dual link 1085 */ 1086 1087 struct nouveau_drm *drm = nouveau_drm(dev); 1088 uint8_t *bmp = &bios->data[offset], bmp_version_major, bmp_version_minor; 1089 uint16_t bmplength; 1090 uint16_t legacy_scripts_offset, legacy_i2c_offset; 1091 1092 /* load needed defaults in case we can't parse this info */ 1093 bios->digital_min_front_porch = 0x4b; 1094 bios->fmaxvco = 256000; 1095 bios->fminvco = 128000; 1096 bios->fp.duallink_transition_clk = 90000; 1097 1098 bmp_version_major = bmp[5]; 1099 bmp_version_minor = bmp[6]; 1100 1101 NV_INFO(drm, "BMP version %d.%d\n", 1102 bmp_version_major, bmp_version_minor); 1103 1104 /* 1105 * Make sure that 0x36 is blank and can't be mistaken for a DCB 1106 * pointer on early versions 1107 */ 1108 if (bmp_version_major < 5) 1109 *(uint16_t *)&bios->data[0x36] = 0; 1110 1111 /* 1112 * Seems that the minor version was 1 for all major versions prior 1113 * to 5. Version 6 could theoretically exist, but I suspect BIT 1114 * happened instead. 1115 */ 1116 if ((bmp_version_major < 5 && bmp_version_minor != 1) || bmp_version_major > 5) { 1117 NV_ERROR(drm, "You have an unsupported BMP version. " 1118 "Please send in your bios\n"); 1119 return -ENOSYS; 1120 } 1121 1122 if (bmp_version_major == 0) 1123 /* nothing that's currently useful in this version */ 1124 return 0; 1125 else if (bmp_version_major == 1) 1126 bmplength = 44; /* exact for 1.01 */ 1127 else if (bmp_version_major == 2) 1128 bmplength = 48; /* exact for 2.01 */ 1129 else if (bmp_version_major == 3) 1130 bmplength = 54; 1131 /* guessed - mem init tables added in this version */ 1132 else if (bmp_version_major == 4 || bmp_version_minor < 0x1) 1133 /* don't know if 5.0 exists... */ 1134 bmplength = 62; 1135 /* guessed - BMP I2C indices added in version 4*/ 1136 else if (bmp_version_minor < 0x6) 1137 bmplength = 67; /* exact for 5.01 */ 1138 else if (bmp_version_minor < 0x10) 1139 bmplength = 75; /* exact for 5.06 */ 1140 else if (bmp_version_minor == 0x10) 1141 bmplength = 89; /* exact for 5.10h */ 1142 else if (bmp_version_minor < 0x14) 1143 bmplength = 118; /* exact for 5.11h */ 1144 else if (bmp_version_minor < 0x24) 1145 /* 1146 * Not sure of version where pll limits came in; 1147 * certainly exist by 0x24 though. 1148 */ 1149 /* length not exact: this is long enough to get lvds members */ 1150 bmplength = 123; 1151 else if (bmp_version_minor < 0x27) 1152 /* 1153 * Length not exact: this is long enough to get pll limit 1154 * member 1155 */ 1156 bmplength = 144; 1157 else 1158 /* 1159 * Length not exact: this is long enough to get dual link 1160 * transition clock. 1161 */ 1162 bmplength = 158; 1163 1164 /* checksum */ 1165 if (nv_cksum(bmp, 8)) { 1166 NV_ERROR(drm, "Bad BMP checksum\n"); 1167 return -EINVAL; 1168 } 1169 1170 /* 1171 * Bit 4 seems to indicate either a mobile bios or a quadro card -- 1172 * mobile behaviour consistent (nv11+), quadro only seen nv18gl-nv36gl 1173 * (not nv10gl), bit 5 that the flat panel tables are present, and 1174 * bit 6 a tv bios. 1175 */ 1176 bios->feature_byte = bmp[9]; 1177 1178 if (bmp_version_major < 5 || bmp_version_minor < 0x10) 1179 bios->old_style_init = true; 1180 legacy_scripts_offset = 18; 1181 if (bmp_version_major < 2) 1182 legacy_scripts_offset -= 4; 1183 bios->init_script_tbls_ptr = ROM16(bmp[legacy_scripts_offset]); 1184 bios->extra_init_script_tbl_ptr = ROM16(bmp[legacy_scripts_offset + 2]); 1185 1186 if (bmp_version_major > 2) { /* appears in BMP 3 */ 1187 bios->legacy.mem_init_tbl_ptr = ROM16(bmp[24]); 1188 bios->legacy.sdr_seq_tbl_ptr = ROM16(bmp[26]); 1189 bios->legacy.ddr_seq_tbl_ptr = ROM16(bmp[28]); 1190 } 1191 1192 legacy_i2c_offset = 0x48; /* BMP version 2 & 3 */ 1193 if (bmplength > 61) 1194 legacy_i2c_offset = offset + 54; 1195 bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset]; 1196 bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1]; 1197 bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2]; 1198 1199 if (bmplength > 74) { 1200 bios->fmaxvco = ROM32(bmp[67]); 1201 bios->fminvco = ROM32(bmp[71]); 1202 } 1203 if (bmplength > 88) 1204 parse_script_table_pointers(bios, offset + 75); 1205 if (bmplength > 94) { 1206 bios->tmds.output0_script_ptr = ROM16(bmp[89]); 1207 bios->tmds.output1_script_ptr = ROM16(bmp[91]); 1208 /* 1209 * Never observed in use with lvds scripts, but is reused for 1210 * 18/24 bit panel interface default for EDID equipped panels 1211 * (if_is_24bit not set directly to avoid any oscillation). 1212 */ 1213 bios->legacy.lvds_single_a_script_ptr = ROM16(bmp[95]); 1214 } 1215 if (bmplength > 108) { 1216 bios->fp.fptablepointer = ROM16(bmp[105]); 1217 bios->fp.fpxlatetableptr = ROM16(bmp[107]); 1218 bios->fp.xlatwidth = 1; 1219 } 1220 if (bmplength > 120) { 1221 bios->fp.lvdsmanufacturerpointer = ROM16(bmp[117]); 1222 bios->fp.fpxlatemanufacturertableptr = ROM16(bmp[119]); 1223 } 1224#if 0 1225 if (bmplength > 143) 1226 bios->pll_limit_tbl_ptr = ROM16(bmp[142]); 1227#endif 1228 1229 if (bmplength > 157) 1230 bios->fp.duallink_transition_clk = ROM16(bmp[156]) * 10; 1231 1232 return 0; 1233} 1234 1235static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len) 1236{ 1237 int i, j; 1238 1239 for (i = 0; i <= (n - len); i++) { 1240 for (j = 0; j < len; j++) 1241 if (data[i + j] != str[j]) 1242 break; 1243 if (j == len) 1244 return i; 1245 } 1246 1247 return 0; 1248} 1249 1250void * 1251olddcb_table(struct drm_device *dev) 1252{ 1253 struct nouveau_drm *drm = nouveau_drm(dev); 1254 u8 *dcb = NULL; 1255 1256 if (nv_device(drm->device)->card_type > NV_04) 1257 dcb = ROMPTR(dev, drm->vbios.data[0x36]); 1258 if (!dcb) { 1259 NV_WARN(drm, "No DCB data found in VBIOS\n"); 1260 return NULL; 1261 } 1262 1263 if (dcb[0] >= 0x41) { 1264 NV_WARN(drm, "DCB version 0x%02x unknown\n", dcb[0]); 1265 return NULL; 1266 } else 1267 if (dcb[0] >= 0x30) { 1268 if (ROM32(dcb[6]) == 0x4edcbdcb) 1269 return dcb; 1270 } else 1271 if (dcb[0] >= 0x20) { 1272 if (ROM32(dcb[4]) == 0x4edcbdcb) 1273 return dcb; 1274 } else 1275 if (dcb[0] >= 0x15) { 1276 if (!memcmp(&dcb[-7], "DEV_REC", 7)) 1277 return dcb; 1278 } else { 1279 /* 1280 * v1.4 (some NV15/16, NV11+) seems the same as v1.5, but 1281 * always has the same single (crt) entry, even when tv-out 1282 * present, so the conclusion is this version cannot really 1283 * be used. 1284 * 1285 * v1.2 tables (some NV6/10, and NV15+) normally have the 1286 * same 5 entries, which are not specific to the card and so 1287 * no use. 1288 * 1289 * v1.2 does have an I2C table that read_dcb_i2c_table can 1290 * handle, but cards exist (nv11 in #14821) with a bad i2c 1291 * table pointer, so use the indices parsed in 1292 * parse_bmp_structure. 1293 * 1294 * v1.1 (NV5+, maybe some NV4) is entirely unhelpful 1295 */ 1296 NV_WARN(drm, "No useful DCB data in VBIOS\n"); 1297 return NULL; 1298 } 1299 1300 NV_WARN(drm, "DCB header validation failed\n"); 1301 return NULL; 1302} 1303 1304void * 1305olddcb_outp(struct drm_device *dev, u8 idx) 1306{ 1307 u8 *dcb = olddcb_table(dev); 1308 if (dcb && dcb[0] >= 0x30) { 1309 if (idx < dcb[2]) 1310 return dcb + dcb[1] + (idx * dcb[3]); 1311 } else 1312 if (dcb && dcb[0] >= 0x20) { 1313 u8 *i2c = ROMPTR(dev, dcb[2]); 1314 u8 *ent = dcb + 8 + (idx * 8); 1315 if (i2c && ent < i2c) 1316 return ent; 1317 } else 1318 if (dcb && dcb[0] >= 0x15) { 1319 u8 *i2c = ROMPTR(dev, dcb[2]); 1320 u8 *ent = dcb + 4 + (idx * 10); 1321 if (i2c && ent < i2c) 1322 return ent; 1323 } 1324 1325 return NULL; 1326} 1327 1328int 1329olddcb_outp_foreach(struct drm_device *dev, void *data, 1330 int (*exec)(struct drm_device *, void *, int idx, u8 *outp)) 1331{ 1332 int ret, idx = -1; 1333 u8 *outp = NULL; 1334 while ((outp = olddcb_outp(dev, ++idx))) { 1335 if (ROM32(outp[0]) == 0x00000000) 1336 break; /* seen on an NV11 with DCB v1.5 */ 1337 if (ROM32(outp[0]) == 0xffffffff) 1338 break; /* seen on an NV17 with DCB v2.0 */ 1339 1340 if ((outp[0] & 0x0f) == DCB_OUTPUT_UNUSED) 1341 continue; 1342 if ((outp[0] & 0x0f) == DCB_OUTPUT_EOL) 1343 break; 1344 1345 ret = exec(dev, data, idx, outp); 1346 if (ret) 1347 return ret; 1348 } 1349 1350 return 0; 1351} 1352 1353u8 * 1354olddcb_conntab(struct drm_device *dev) 1355{ 1356 u8 *dcb = olddcb_table(dev); 1357 if (dcb && dcb[0] >= 0x30 && dcb[1] >= 0x16) { 1358 u8 *conntab = ROMPTR(dev, dcb[0x14]); 1359 if (conntab && conntab[0] >= 0x30 && conntab[0] <= 0x40) 1360 return conntab; 1361 } 1362 return NULL; 1363} 1364 1365u8 * 1366olddcb_conn(struct drm_device *dev, u8 idx) 1367{ 1368 u8 *conntab = olddcb_conntab(dev); 1369 if (conntab && idx < conntab[2]) 1370 return conntab + conntab[1] + (idx * conntab[3]); 1371 return NULL; 1372} 1373 1374static struct dcb_output *new_dcb_entry(struct dcb_table *dcb) 1375{ 1376 struct dcb_output *entry = &dcb->entry[dcb->entries]; 1377 1378 memset(entry, 0, sizeof(struct dcb_output)); 1379 entry->index = dcb->entries++; 1380 1381 return entry; 1382} 1383 1384static void fabricate_dcb_output(struct dcb_table *dcb, int type, int i2c, 1385 int heads, int or) 1386{ 1387 struct dcb_output *entry = new_dcb_entry(dcb); 1388 1389 entry->type = type; 1390 entry->i2c_index = i2c; 1391 entry->heads = heads; 1392 if (type != DCB_OUTPUT_ANALOG) 1393 entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */ 1394 entry->or = or; 1395} 1396 1397static bool 1398parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb, 1399 uint32_t conn, uint32_t conf, struct dcb_output *entry) 1400{ 1401 struct nouveau_drm *drm = nouveau_drm(dev); 1402 1403 entry->type = conn & 0xf; 1404 entry->i2c_index = (conn >> 4) & 0xf; 1405 entry->heads = (conn >> 8) & 0xf; 1406 entry->connector = (conn >> 12) & 0xf; 1407 entry->bus = (conn >> 16) & 0xf; 1408 entry->location = (conn >> 20) & 0x3; 1409 entry->or = (conn >> 24) & 0xf; 1410 1411 switch (entry->type) { 1412 case DCB_OUTPUT_ANALOG: 1413 /* 1414 * Although the rest of a CRT conf dword is usually 1415 * zeros, mac biosen have stuff there so we must mask 1416 */ 1417 entry->crtconf.maxfreq = (dcb->version < 0x30) ? 1418 (conf & 0xffff) * 10 : 1419 (conf & 0xff) * 10000; 1420 break; 1421 case DCB_OUTPUT_LVDS: 1422 { 1423 uint32_t mask; 1424 if (conf & 0x1) 1425 entry->lvdsconf.use_straps_for_mode = true; 1426 if (dcb->version < 0x22) { 1427 mask = ~0xd; 1428 /* 1429 * The laptop in bug 14567 lies and claims to not use 1430 * straps when it does, so assume all DCB 2.0 laptops 1431 * use straps, until a broken EDID using one is produced 1432 */ 1433 entry->lvdsconf.use_straps_for_mode = true; 1434 /* 1435 * Both 0x4 and 0x8 show up in v2.0 tables; assume they 1436 * mean the same thing (probably wrong, but might work) 1437 */ 1438 if (conf & 0x4 || conf & 0x8) 1439 entry->lvdsconf.use_power_scripts = true; 1440 } else { 1441 mask = ~0x7; 1442 if (conf & 0x2) 1443 entry->lvdsconf.use_acpi_for_edid = true; 1444 if (conf & 0x4) 1445 entry->lvdsconf.use_power_scripts = true; 1446 entry->lvdsconf.sor.link = (conf & 0x00000030) >> 4; 1447 } 1448 if (conf & mask) { 1449 /* 1450 * Until we even try to use these on G8x, it's 1451 * useless reporting unknown bits. They all are. 1452 */ 1453 if (dcb->version >= 0x40) 1454 break; 1455 1456 NV_ERROR(drm, "Unknown LVDS configuration bits, " 1457 "please report\n"); 1458 } 1459 break; 1460 } 1461 case DCB_OUTPUT_TV: 1462 { 1463 if (dcb->version >= 0x30) 1464 entry->tvconf.has_component_output = conf & (0x8 << 4); 1465 else 1466 entry->tvconf.has_component_output = false; 1467 1468 break; 1469 } 1470 case DCB_OUTPUT_DP: 1471 entry->dpconf.sor.link = (conf & 0x00000030) >> 4; 1472 entry->extdev = (conf & 0x0000ff00) >> 8; 1473 switch ((conf & 0x00e00000) >> 21) { 1474 case 0: 1475 entry->dpconf.link_bw = 162000; 1476 break; 1477 default: 1478 entry->dpconf.link_bw = 270000; 1479 break; 1480 } 1481 switch ((conf & 0x0f000000) >> 24) { 1482 case 0xf: 1483 entry->dpconf.link_nr = 4; 1484 break; 1485 case 0x3: 1486 entry->dpconf.link_nr = 2; 1487 break; 1488 default: 1489 entry->dpconf.link_nr = 1; 1490 break; 1491 } 1492 break; 1493 case DCB_OUTPUT_TMDS: 1494 if (dcb->version >= 0x40) { 1495 entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4; 1496 entry->extdev = (conf & 0x0000ff00) >> 8; 1497 } 1498 else if (dcb->version >= 0x30) 1499 entry->tmdsconf.slave_addr = (conf & 0x00000700) >> 8; 1500 else if (dcb->version >= 0x22) 1501 entry->tmdsconf.slave_addr = (conf & 0x00000070) >> 4; 1502 1503 break; 1504 case DCB_OUTPUT_EOL: 1505 /* weird g80 mobile type that "nv" treats as a terminator */ 1506 dcb->entries--; 1507 return false; 1508 default: 1509 break; 1510 } 1511 1512 if (dcb->version < 0x40) { 1513 /* Normal entries consist of a single bit, but dual link has 1514 * the next most significant bit set too 1515 */ 1516 entry->duallink_possible = 1517 ((1 << (ffs(entry->or) - 1)) * 3 == entry->or); 1518 } else { 1519 entry->duallink_possible = (entry->sorconf.link == 3); 1520 } 1521 1522 /* unsure what DCB version introduces this, 3.0? */ 1523 if (conf & 0x100000) 1524 entry->i2c_upper_default = true; 1525 1526 return true; 1527} 1528 1529static bool 1530parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb, 1531 uint32_t conn, uint32_t conf, struct dcb_output *entry) 1532{ 1533 struct nouveau_drm *drm = nouveau_drm(dev); 1534 1535 switch (conn & 0x0000000f) { 1536 case 0: 1537 entry->type = DCB_OUTPUT_ANALOG; 1538 break; 1539 case 1: 1540 entry->type = DCB_OUTPUT_TV; 1541 break; 1542 case 2: 1543 case 4: 1544 if (conn & 0x10) 1545 entry->type = DCB_OUTPUT_LVDS; 1546 else 1547 entry->type = DCB_OUTPUT_TMDS; 1548 break; 1549 case 3: 1550 entry->type = DCB_OUTPUT_LVDS; 1551 break; 1552 default: 1553 NV_ERROR(drm, "Unknown DCB type %d\n", conn & 0x0000000f); 1554 return false; 1555 } 1556 1557 entry->i2c_index = (conn & 0x0003c000) >> 14; 1558 entry->heads = ((conn & 0x001c0000) >> 18) + 1; 1559 entry->or = entry->heads; /* same as heads, hopefully safe enough */ 1560 entry->location = (conn & 0x01e00000) >> 21; 1561 entry->bus = (conn & 0x0e000000) >> 25; 1562 entry->duallink_possible = false; 1563 1564 switch (entry->type) { 1565 case DCB_OUTPUT_ANALOG: 1566 entry->crtconf.maxfreq = (conf & 0xffff) * 10; 1567 break; 1568 case DCB_OUTPUT_TV: 1569 entry->tvconf.has_component_output = false; 1570 break; 1571 case DCB_OUTPUT_LVDS: 1572 if ((conn & 0x00003f00) >> 8 != 0x10) 1573 entry->lvdsconf.use_straps_for_mode = true; 1574 entry->lvdsconf.use_power_scripts = true; 1575 break; 1576 default: 1577 break; 1578 } 1579 1580 return true; 1581} 1582 1583static 1584void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb) 1585{ 1586 /* 1587 * DCB v2.0 lists each output combination separately. 1588 * Here we merge compatible entries to have fewer outputs, with 1589 * more options 1590 */ 1591 1592 struct nouveau_drm *drm = nouveau_drm(dev); 1593 int i, newentries = 0; 1594 1595 for (i = 0; i < dcb->entries; i++) { 1596 struct dcb_output *ient = &dcb->entry[i]; 1597 int j; 1598 1599 for (j = i + 1; j < dcb->entries; j++) { 1600 struct dcb_output *jent = &dcb->entry[j]; 1601 1602 if (jent->type == 100) /* already merged entry */ 1603 continue; 1604 1605 /* merge heads field when all other fields the same */ 1606 if (jent->i2c_index == ient->i2c_index && 1607 jent->type == ient->type && 1608 jent->location == ient->location && 1609 jent->or == ient->or) { 1610 NV_INFO(drm, "Merging DCB entries %d and %d\n", 1611 i, j); 1612 ient->heads |= jent->heads; 1613 jent->type = 100; /* dummy value */ 1614 } 1615 } 1616 } 1617 1618 /* Compact entries merged into others out of dcb */ 1619 for (i = 0; i < dcb->entries; i++) { 1620 if (dcb->entry[i].type == 100) 1621 continue; 1622 1623 if (newentries != i) { 1624 dcb->entry[newentries] = dcb->entry[i]; 1625 dcb->entry[newentries].index = newentries; 1626 } 1627 newentries++; 1628 } 1629 1630 dcb->entries = newentries; 1631} 1632 1633static bool 1634apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf) 1635{ 1636 struct nouveau_drm *drm = nouveau_drm(dev); 1637 struct dcb_table *dcb = &drm->vbios.dcb; 1638 1639 /* Dell Precision M6300 1640 * DCB entry 2: 02025312 00000010 1641 * DCB entry 3: 02026312 00000020 1642 * 1643 * Identical, except apparently a different connector on a 1644 * different SOR link. Not a clue how we're supposed to know 1645 * which one is in use if it even shares an i2c line... 1646 * 1647 * Ignore the connector on the second SOR link to prevent 1648 * nasty problems until this is sorted (assuming it's not a 1649 * VBIOS bug). 1650 */ 1651 if (nv_match_device(dev, 0x040d, 0x1028, 0x019b)) { 1652 if (*conn == 0x02026312 && *conf == 0x00000020) 1653 return false; 1654 } 1655 1656 /* GeForce3 Ti 200 1657 * 1658 * DCB reports an LVDS output that should be TMDS: 1659 * DCB entry 1: f2005014 ffffffff 1660 */ 1661 if (nv_match_device(dev, 0x0201, 0x1462, 0x8851)) { 1662 if (*conn == 0xf2005014 && *conf == 0xffffffff) { 1663 fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, 1, 1); 1664 return false; 1665 } 1666 } 1667 1668 /* XFX GT-240X-YA 1669 * 1670 * So many things wrong here, replace the entire encoder table.. 1671 */ 1672 if (nv_match_device(dev, 0x0ca3, 0x1682, 0x3003)) { 1673 if (idx == 0) { 1674 *conn = 0x02001300; /* VGA, connector 1 */ 1675 *conf = 0x00000028; 1676 } else 1677 if (idx == 1) { 1678 *conn = 0x01010312; /* DVI, connector 0 */ 1679 *conf = 0x00020030; 1680 } else 1681 if (idx == 2) { 1682 *conn = 0x01010310; /* VGA, connector 0 */ 1683 *conf = 0x00000028; 1684 } else 1685 if (idx == 3) { 1686 *conn = 0x02022362; /* HDMI, connector 2 */ 1687 *conf = 0x00020010; 1688 } else { 1689 *conn = 0x0000000e; /* EOL */ 1690 *conf = 0x00000000; 1691 } 1692 } 1693 1694 /* Some other twisted XFX board (rhbz#694914) 1695 * 1696 * The DVI/VGA encoder combo that's supposed to represent the 1697 * DVI-I connector actually point at two different ones, and 1698 * the HDMI connector ends up paired with the VGA instead. 1699 * 1700 * Connector table is missing anything for VGA at all, pointing it 1701 * an invalid conntab entry 2 so we figure it out ourself. 1702 */ 1703 if (nv_match_device(dev, 0x0615, 0x1682, 0x2605)) { 1704 if (idx == 0) { 1705 *conn = 0x02002300; /* VGA, connector 2 */ 1706 *conf = 0x00000028; 1707 } else 1708 if (idx == 1) { 1709 *conn = 0x01010312; /* DVI, connector 0 */ 1710 *conf = 0x00020030; 1711 } else 1712 if (idx == 2) { 1713 *conn = 0x04020310; /* VGA, connector 0 */ 1714 *conf = 0x00000028; 1715 } else 1716 if (idx == 3) { 1717 *conn = 0x02021322; /* HDMI, connector 1 */ 1718 *conf = 0x00020010; 1719 } else { 1720 *conn = 0x0000000e; /* EOL */ 1721 *conf = 0x00000000; 1722 } 1723 } 1724 1725 /* fdo#50830: connector indices for VGA and DVI-I are backwards */ 1726 if (nv_match_device(dev, 0x0421, 0x3842, 0xc793)) { 1727 if (idx == 0 && *conn == 0x02000300) 1728 *conn = 0x02011300; 1729 else 1730 if (idx == 1 && *conn == 0x04011310) 1731 *conn = 0x04000310; 1732 else 1733 if (idx == 2 && *conn == 0x02011312) 1734 *conn = 0x02000312; 1735 } 1736 1737 return true; 1738} 1739 1740static void 1741fabricate_dcb_encoder_table(struct drm_device *dev, struct nvbios *bios) 1742{ 1743 struct dcb_table *dcb = &bios->dcb; 1744 int all_heads = (nv_two_heads(dev) ? 3 : 1); 1745 1746#ifdef __powerpc__ 1747 /* Apple iMac G4 NV17 */ 1748 if (of_machine_is_compatible("PowerMac4,5")) { 1749 fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 0, all_heads, 1); 1750 fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG, 1, all_heads, 2); 1751 return; 1752 } 1753#endif 1754 1755 /* Make up some sane defaults */ 1756 fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG, 1757 bios->legacy.i2c_indices.crt, 1, 1); 1758 1759 if (nv04_tv_identify(dev, bios->legacy.i2c_indices.tv) >= 0) 1760 fabricate_dcb_output(dcb, DCB_OUTPUT_TV, 1761 bios->legacy.i2c_indices.tv, 1762 all_heads, 0); 1763 1764 else if (bios->tmds.output0_script_ptr || 1765 bios->tmds.output1_script_ptr) 1766 fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1767 bios->legacy.i2c_indices.panel, 1768 all_heads, 1); 1769} 1770 1771static int 1772parse_dcb_entry(struct drm_device *dev, void *data, int idx, u8 *outp) 1773{ 1774 struct nouveau_drm *drm = nouveau_drm(dev); 1775 struct dcb_table *dcb = &drm->vbios.dcb; 1776 u32 conf = (dcb->version >= 0x20) ? ROM32(outp[4]) : ROM32(outp[6]); 1777 u32 conn = ROM32(outp[0]); 1778 bool ret; 1779 1780 if (apply_dcb_encoder_quirks(dev, idx, &conn, &conf)) { 1781 struct dcb_output *entry = new_dcb_entry(dcb); 1782 1783 NV_INFO(drm, "DCB outp %02d: %08x %08x\n", idx, conn, conf); 1784 1785 if (dcb->version >= 0x20) 1786 ret = parse_dcb20_entry(dev, dcb, conn, conf, entry); 1787 else 1788 ret = parse_dcb15_entry(dev, dcb, conn, conf, entry); 1789 if (!ret) 1790 return 1; /* stop parsing */ 1791 1792 /* Ignore the I2C index for on-chip TV-out, as there 1793 * are cards with bogus values (nv31m in bug 23212), 1794 * and it's otherwise useless. 1795 */ 1796 if (entry->type == DCB_OUTPUT_TV && 1797 entry->location == DCB_LOC_ON_CHIP) 1798 entry->i2c_index = 0x0f; 1799 } 1800 1801 return 0; 1802} 1803 1804static void 1805dcb_fake_connectors(struct nvbios *bios) 1806{ 1807 struct dcb_table *dcbt = &bios->dcb; 1808 u8 map[16] = { }; 1809 int i, idx = 0; 1810 1811 /* heuristic: if we ever get a non-zero connector field, assume 1812 * that all the indices are valid and we don't need fake them. 1813 * 1814 * and, as usual, a blacklist of boards with bad bios data.. 1815 */ 1816 if (!nv_match_device(bios->dev, 0x0392, 0x107d, 0x20a2)) { 1817 for (i = 0; i < dcbt->entries; i++) { 1818 if (dcbt->entry[i].connector) 1819 return; 1820 } 1821 } 1822 1823 /* no useful connector info available, we need to make it up 1824 * ourselves. the rule here is: anything on the same i2c bus 1825 * is considered to be on the same connector. any output 1826 * without an associated i2c bus is assigned its own unique 1827 * connector index. 1828 */ 1829 for (i = 0; i < dcbt->entries; i++) { 1830 u8 i2c = dcbt->entry[i].i2c_index; 1831 if (i2c == 0x0f) { 1832 dcbt->entry[i].connector = idx++; 1833 } else { 1834 if (!map[i2c]) 1835 map[i2c] = ++idx; 1836 dcbt->entry[i].connector = map[i2c] - 1; 1837 } 1838 } 1839 1840 /* if we created more than one connector, destroy the connector 1841 * table - just in case it has random, rather than stub, entries. 1842 */ 1843 if (i > 1) { 1844 u8 *conntab = olddcb_conntab(bios->dev); 1845 if (conntab) 1846 conntab[0] = 0x00; 1847 } 1848} 1849 1850static int 1851parse_dcb_table(struct drm_device *dev, struct nvbios *bios) 1852{ 1853 struct nouveau_drm *drm = nouveau_drm(dev); 1854 struct dcb_table *dcb = &bios->dcb; 1855 u8 *dcbt, *conn; 1856 int idx; 1857 1858 dcbt = olddcb_table(dev); 1859 if (!dcbt) { 1860 /* handle pre-DCB boards */ 1861 if (bios->type == NVBIOS_BMP) { 1862 fabricate_dcb_encoder_table(dev, bios); 1863 return 0; 1864 } 1865 1866 return -EINVAL; 1867 } 1868 1869 NV_INFO(drm, "DCB version %d.%d\n", dcbt[0] >> 4, dcbt[0] & 0xf); 1870 1871 dcb->version = dcbt[0]; 1872 olddcb_outp_foreach(dev, NULL, parse_dcb_entry); 1873 1874 /* 1875 * apart for v2.1+ not being known for requiring merging, this 1876 * guarantees dcbent->index is the index of the entry in the rom image 1877 */ 1878 if (dcb->version < 0x21) 1879 merge_like_dcb_entries(dev, dcb); 1880 1881 if (!dcb->entries) 1882 return -ENXIO; 1883 1884 /* dump connector table entries to log, if any exist */ 1885 idx = -1; 1886 while ((conn = olddcb_conn(dev, ++idx))) { 1887 if (conn[0] != 0xff) { 1888 NV_INFO(drm, "DCB conn %02d: ", idx); 1889 if (olddcb_conntab(dev)[3] < 4) 1890 pr_cont("%04x\n", ROM16(conn[0])); 1891 else 1892 pr_cont("%08x\n", ROM32(conn[0])); 1893 } 1894 } 1895 dcb_fake_connectors(bios); 1896 return 0; 1897} 1898 1899static int load_nv17_hwsq_ucode_entry(struct drm_device *dev, struct nvbios *bios, uint16_t hwsq_offset, int entry) 1900{ 1901 /* 1902 * The header following the "HWSQ" signature has the number of entries, 1903 * and the entry size 1904 * 1905 * An entry consists of a dword to write to the sequencer control reg 1906 * (0x00001304), followed by the ucode bytes, written sequentially, 1907 * starting at reg 0x00001400 1908 */ 1909 1910 struct nouveau_drm *drm = nouveau_drm(dev); 1911 struct nouveau_device *device = nv_device(drm->device); 1912 uint8_t bytes_to_write; 1913 uint16_t hwsq_entry_offset; 1914 int i; 1915 1916 if (bios->data[hwsq_offset] <= entry) { 1917 NV_ERROR(drm, "Too few entries in HW sequencer table for " 1918 "requested entry\n"); 1919 return -ENOENT; 1920 } 1921 1922 bytes_to_write = bios->data[hwsq_offset + 1]; 1923 1924 if (bytes_to_write != 36) { 1925 NV_ERROR(drm, "Unknown HW sequencer entry size\n"); 1926 return -EINVAL; 1927 } 1928 1929 NV_INFO(drm, "Loading NV17 power sequencing microcode\n"); 1930 1931 hwsq_entry_offset = hwsq_offset + 2 + entry * bytes_to_write; 1932 1933 /* set sequencer control */ 1934 nv_wr32(device, 0x00001304, ROM32(bios->data[hwsq_entry_offset])); 1935 bytes_to_write -= 4; 1936 1937 /* write ucode */ 1938 for (i = 0; i < bytes_to_write; i += 4) 1939 nv_wr32(device, 0x00001400 + i, ROM32(bios->data[hwsq_entry_offset + i + 4])); 1940 1941 /* twiddle NV_PBUS_DEBUG_4 */ 1942 nv_wr32(device, NV_PBUS_DEBUG_4, nv_rd32(device, NV_PBUS_DEBUG_4) | 0x18); 1943 1944 return 0; 1945} 1946 1947static int load_nv17_hw_sequencer_ucode(struct drm_device *dev, 1948 struct nvbios *bios) 1949{ 1950 /* 1951 * BMP based cards, from NV17, need a microcode loading to correctly 1952 * control the GPIO etc for LVDS panels 1953 * 1954 * BIT based cards seem to do this directly in the init scripts 1955 * 1956 * The microcode entries are found by the "HWSQ" signature. 1957 */ 1958 1959 const uint8_t hwsq_signature[] = { 'H', 'W', 'S', 'Q' }; 1960 const int sz = sizeof(hwsq_signature); 1961 int hwsq_offset; 1962 1963 hwsq_offset = findstr(bios->data, bios->length, hwsq_signature, sz); 1964 if (!hwsq_offset) 1965 return 0; 1966 1967 /* always use entry 0? */ 1968 return load_nv17_hwsq_ucode_entry(dev, bios, hwsq_offset + sz, 0); 1969} 1970 1971uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev) 1972{ 1973 struct nouveau_drm *drm = nouveau_drm(dev); 1974 struct nvbios *bios = &drm->vbios; 1975 const uint8_t edid_sig[] = { 1976 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 }; 1977 uint16_t offset = 0; 1978 uint16_t newoffset; 1979 int searchlen = NV_PROM_SIZE; 1980 1981 if (bios->fp.edid) 1982 return bios->fp.edid; 1983 1984 while (searchlen) { 1985 newoffset = findstr(&bios->data[offset], searchlen, 1986 edid_sig, 8); 1987 if (!newoffset) 1988 return NULL; 1989 offset += newoffset; 1990 if (!nv_cksum(&bios->data[offset], EDID1_LEN)) 1991 break; 1992 1993 searchlen -= offset; 1994 offset++; 1995 } 1996 1997 NV_INFO(drm, "Found EDID in BIOS\n"); 1998 1999 return bios->fp.edid = &bios->data[offset]; 2000} 2001 2002static bool NVInitVBIOS(struct drm_device *dev) 2003{ 2004 struct nouveau_drm *drm = nouveau_drm(dev); 2005 struct nouveau_bios *bios = nouveau_bios(drm->device); 2006 struct nvbios *legacy = &drm->vbios; 2007 2008 memset(legacy, 0, sizeof(struct nvbios)); 2009 spin_lock_init(&legacy->lock); 2010 legacy->dev = dev; 2011 2012 legacy->data = bios->data; 2013 legacy->length = bios->size; 2014 legacy->major_version = bios->version.major; 2015 legacy->chip_version = bios->version.chip; 2016 if (bios->bit_offset) { 2017 legacy->type = NVBIOS_BIT; 2018 legacy->offset = bios->bit_offset; 2019 return !parse_bit_structure(legacy, legacy->offset + 6); 2020 } else 2021 if (bios->bmp_offset) { 2022 legacy->type = NVBIOS_BMP; 2023 legacy->offset = bios->bmp_offset; 2024 return !parse_bmp_structure(dev, legacy, legacy->offset); 2025 } 2026 2027 return false; 2028} 2029 2030int 2031nouveau_run_vbios_init(struct drm_device *dev) 2032{ 2033 struct nouveau_drm *drm = nouveau_drm(dev); 2034 struct nvbios *bios = &drm->vbios; 2035 int ret = 0; 2036 2037 /* Reset the BIOS head to 0. */ 2038 bios->state.crtchead = 0; 2039 2040 if (bios->major_version < 5) /* BMP only */ 2041 load_nv17_hw_sequencer_ucode(dev, bios); 2042 2043 if (bios->execute) { 2044 bios->fp.last_script_invoc = 0; 2045 bios->fp.lvds_init_run = false; 2046 } 2047 2048 return ret; 2049} 2050 2051static bool 2052nouveau_bios_posted(struct drm_device *dev) 2053{ 2054 struct nouveau_drm *drm = nouveau_drm(dev); 2055 unsigned htotal; 2056 2057 if (nv_device(drm->device)->card_type >= NV_50) { 2058 if (NVReadVgaCrtc(dev, 0, 0x00) == 0 && 2059 NVReadVgaCrtc(dev, 0, 0x1a) == 0) 2060 return false; 2061 return true; 2062 } 2063 2064 htotal = NVReadVgaCrtc(dev, 0, 0x06); 2065 htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x01) << 8; 2066 htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x20) << 4; 2067 htotal |= (NVReadVgaCrtc(dev, 0, 0x25) & 0x01) << 10; 2068 htotal |= (NVReadVgaCrtc(dev, 0, 0x41) & 0x01) << 11; 2069 2070 return (htotal != 0); 2071} 2072 2073int 2074nouveau_bios_init(struct drm_device *dev) 2075{ 2076 struct nouveau_drm *drm = nouveau_drm(dev); 2077 struct nvbios *bios = &drm->vbios; 2078 int ret; 2079 2080 if (!NVInitVBIOS(dev)) 2081 return -ENODEV; 2082 2083 ret = parse_dcb_table(dev, bios); 2084 if (ret) 2085 return ret; 2086 2087 if (!bios->major_version) /* we don't run version 0 bios */ 2088 return 0; 2089 2090 /* init script execution disabled */ 2091 bios->execute = false; 2092 2093 /* ... unless card isn't POSTed already */ 2094 if (!nouveau_bios_posted(dev)) { 2095 NV_INFO(drm, "Adaptor not initialised, " 2096 "running VBIOS init tables.\n"); 2097 bios->execute = true; 2098 } 2099 2100 ret = nouveau_run_vbios_init(dev); 2101 if (ret) 2102 return ret; 2103 2104 /* feature_byte on BMP is poor, but init always sets CR4B */ 2105 if (bios->major_version < 5) 2106 bios->is_mobile = NVReadVgaCrtc(dev, 0, NV_CIO_CRE_4B) & 0x40; 2107 2108 /* all BIT systems need p_f_m_t for digital_min_front_porch */ 2109 if (bios->is_mobile || bios->major_version >= 5) 2110 ret = parse_fp_mode_table(dev, bios); 2111 2112 /* allow subsequent scripts to execute */ 2113 bios->execute = true; 2114 2115 return 0; 2116} 2117 2118void 2119nouveau_bios_takedown(struct drm_device *dev) 2120{ 2121} 2122