nouveau_bios.c revision 77145f1cbdf8d28b46ff8070ca749bad821e0774
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 "drmP.h" 28#include "nouveau_drm.h" 29#include "nouveau_reg.h" 30#include "nouveau_hw.h" 31#include "nouveau_encoder.h" 32 33#include <linux/io-mapping.h> 34#include <linux/firmware.h> 35 36/* these defines are made up */ 37#define NV_CIO_CRE_44_HEADA 0x0 38#define NV_CIO_CRE_44_HEADB 0x3 39#define FEATURE_MOBILE 0x10 /* also FEATURE_QUADRO for BMP */ 40 41#define EDID1_LEN 128 42 43#define BIOSLOG(sip, fmt, arg...) NV_DEBUG(sip->dev, fmt, ##arg) 44#define LOG_OLD_VALUE(x) 45 46struct init_exec { 47 bool execute; 48 bool repeat; 49}; 50 51static bool nv_cksum(const uint8_t *data, unsigned int length) 52{ 53 /* 54 * There's a few checksums in the BIOS, so here's a generic checking 55 * function. 56 */ 57 int i; 58 uint8_t sum = 0; 59 60 for (i = 0; i < length; i++) 61 sum += data[i]; 62 63 if (sum) 64 return true; 65 66 return false; 67} 68 69static uint16_t clkcmptable(struct nvbios *bios, uint16_t clktable, int pxclk) 70{ 71 int compare_record_len, i = 0; 72 uint16_t compareclk, scriptptr = 0; 73 74 if (bios->major_version < 5) /* pre BIT */ 75 compare_record_len = 3; 76 else 77 compare_record_len = 4; 78 79 do { 80 compareclk = ROM16(bios->data[clktable + compare_record_len * i]); 81 if (pxclk >= compareclk * 10) { 82 if (bios->major_version < 5) { 83 uint8_t tmdssub = bios->data[clktable + 2 + compare_record_len * i]; 84 scriptptr = ROM16(bios->data[bios->init_script_tbls_ptr + tmdssub * 2]); 85 } else 86 scriptptr = ROM16(bios->data[clktable + 2 + compare_record_len * i]); 87 break; 88 } 89 i++; 90 } while (compareclk); 91 92 return scriptptr; 93} 94 95static void 96run_digital_op_script(struct drm_device *dev, uint16_t scriptptr, 97 struct dcb_output *dcbent, int head, bool dl) 98{ 99 struct nouveau_drm *drm = nouveau_drm(dev); 100 101 NV_INFO(drm, "0x%04X: Parsing digital output script table\n", 102 scriptptr); 103 NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_44, head ? NV_CIO_CRE_44_HEADB : 104 NV_CIO_CRE_44_HEADA); 105 nouveau_bios_run_init_table(dev, scriptptr, dcbent, head); 106 107 nv04_dfp_bind_head(dev, dcbent, head, dl); 108} 109 110static int call_lvds_manufacturer_script(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script) 111{ 112 struct nouveau_drm *drm = nouveau_drm(dev); 113 struct nvbios *bios = &drm->vbios; 114 uint8_t sub = bios->data[bios->fp.xlated_entry + script] + (bios->fp.link_c_increment && dcbent->or & DCB_OUTPUT_C ? 1 : 0); 115 uint16_t scriptofs = ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]); 116 117 if (!bios->fp.xlated_entry || !sub || !scriptofs) 118 return -EINVAL; 119 120 run_digital_op_script(dev, scriptofs, dcbent, head, bios->fp.dual_link); 121 122 if (script == LVDS_PANEL_OFF) { 123 /* off-on delay in ms */ 124 mdelay(ROM16(bios->data[bios->fp.xlated_entry + 7])); 125 } 126#ifdef __powerpc__ 127 /* Powerbook specific quirks */ 128 if (script == LVDS_RESET && 129 (dev->pci_device == 0x0179 || dev->pci_device == 0x0189 || 130 dev->pci_device == 0x0329)) 131 nv_write_tmds(dev, dcbent->or, 0, 0x02, 0x72); 132#endif 133 134 return 0; 135} 136 137static int run_lvds_table(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script, int pxclk) 138{ 139 /* 140 * The BIT LVDS table's header has the information to setup the 141 * necessary registers. Following the standard 4 byte header are: 142 * A bitmask byte and a dual-link transition pxclk value for use in 143 * selecting the init script when not using straps; 4 script pointers 144 * for panel power, selected by output and on/off; and 8 table pointers 145 * for panel init, the needed one determined by output, and bits in the 146 * conf byte. These tables are similar to the TMDS tables, consisting 147 * of a list of pxclks and script pointers. 148 */ 149 struct nouveau_drm *drm = nouveau_drm(dev); 150 struct nvbios *bios = &drm->vbios; 151 unsigned int outputset = (dcbent->or == 4) ? 1 : 0; 152 uint16_t scriptptr = 0, clktable; 153 154 /* 155 * For now we assume version 3.0 table - g80 support will need some 156 * changes 157 */ 158 159 switch (script) { 160 case LVDS_INIT: 161 return -ENOSYS; 162 case LVDS_BACKLIGHT_ON: 163 case LVDS_PANEL_ON: 164 scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 7 + outputset * 2]); 165 break; 166 case LVDS_BACKLIGHT_OFF: 167 case LVDS_PANEL_OFF: 168 scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 11 + outputset * 2]); 169 break; 170 case LVDS_RESET: 171 clktable = bios->fp.lvdsmanufacturerpointer + 15; 172 if (dcbent->or == 4) 173 clktable += 8; 174 175 if (dcbent->lvdsconf.use_straps_for_mode) { 176 if (bios->fp.dual_link) 177 clktable += 4; 178 if (bios->fp.if_is_24bit) 179 clktable += 2; 180 } else { 181 /* using EDID */ 182 int cmpval_24bit = (dcbent->or == 4) ? 4 : 1; 183 184 if (bios->fp.dual_link) { 185 clktable += 4; 186 cmpval_24bit <<= 1; 187 } 188 189 if (bios->fp.strapless_is_24bit & cmpval_24bit) 190 clktable += 2; 191 } 192 193 clktable = ROM16(bios->data[clktable]); 194 if (!clktable) { 195 NV_ERROR(drm, "Pixel clock comparison table not found\n"); 196 return -ENOENT; 197 } 198 scriptptr = clkcmptable(bios, clktable, pxclk); 199 } 200 201 if (!scriptptr) { 202 NV_ERROR(drm, "LVDS output init script not found\n"); 203 return -ENOENT; 204 } 205 run_digital_op_script(dev, scriptptr, dcbent, head, bios->fp.dual_link); 206 207 return 0; 208} 209 210int call_lvds_script(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script, int pxclk) 211{ 212 /* 213 * LVDS operations are multiplexed in an effort to present a single API 214 * which works with two vastly differing underlying structures. 215 * This acts as the demux 216 */ 217 218 struct nouveau_drm *drm = nouveau_drm(dev); 219 struct nouveau_device *device = nv_device(drm->device); 220 struct nvbios *bios = &drm->vbios; 221 uint8_t lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer]; 222 uint32_t sel_clk_binding, sel_clk; 223 int ret; 224 225 if (bios->fp.last_script_invoc == (script << 1 | head) || !lvds_ver || 226 (lvds_ver >= 0x30 && script == LVDS_INIT)) 227 return 0; 228 229 if (!bios->fp.lvds_init_run) { 230 bios->fp.lvds_init_run = true; 231 call_lvds_script(dev, dcbent, head, LVDS_INIT, pxclk); 232 } 233 234 if (script == LVDS_PANEL_ON && bios->fp.reset_after_pclk_change) 235 call_lvds_script(dev, dcbent, head, LVDS_RESET, pxclk); 236 if (script == LVDS_RESET && bios->fp.power_off_for_reset) 237 call_lvds_script(dev, dcbent, head, LVDS_PANEL_OFF, pxclk); 238 239 NV_INFO(drm, "Calling LVDS script %d:\n", script); 240 241 /* don't let script change pll->head binding */ 242 sel_clk_binding = nv_rd32(device, NV_PRAMDAC_SEL_CLK) & 0x50000; 243 244 if (lvds_ver < 0x30) 245 ret = call_lvds_manufacturer_script(dev, dcbent, head, script); 246 else 247 ret = run_lvds_table(dev, dcbent, head, script, pxclk); 248 249 bios->fp.last_script_invoc = (script << 1 | head); 250 251 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000; 252 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding); 253 /* some scripts set a value in NV_PBUS_POWERCTRL_2 and break video overlay */ 254 nv_wr32(device, NV_PBUS_POWERCTRL_2, 0); 255 256 return ret; 257} 258 259struct lvdstableheader { 260 uint8_t lvds_ver, headerlen, recordlen; 261}; 262 263static int parse_lvds_manufacturer_table_header(struct drm_device *dev, struct nvbios *bios, struct lvdstableheader *lth) 264{ 265 /* 266 * BMP version (0xa) LVDS table has a simple header of version and 267 * record length. The BIT LVDS table has the typical BIT table header: 268 * version byte, header length byte, record length byte, and a byte for 269 * the maximum number of records that can be held in the table. 270 */ 271 272 struct nouveau_drm *drm = nouveau_drm(dev); 273 uint8_t lvds_ver, headerlen, recordlen; 274 275 memset(lth, 0, sizeof(struct lvdstableheader)); 276 277 if (bios->fp.lvdsmanufacturerpointer == 0x0) { 278 NV_ERROR(drm, "Pointer to LVDS manufacturer table invalid\n"); 279 return -EINVAL; 280 } 281 282 lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer]; 283 284 switch (lvds_ver) { 285 case 0x0a: /* pre NV40 */ 286 headerlen = 2; 287 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1]; 288 break; 289 case 0x30: /* NV4x */ 290 headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1]; 291 if (headerlen < 0x1f) { 292 NV_ERROR(drm, "LVDS table header not understood\n"); 293 return -EINVAL; 294 } 295 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2]; 296 break; 297 case 0x40: /* G80/G90 */ 298 headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1]; 299 if (headerlen < 0x7) { 300 NV_ERROR(drm, "LVDS table header not understood\n"); 301 return -EINVAL; 302 } 303 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2]; 304 break; 305 default: 306 NV_ERROR(drm, 307 "LVDS table revision %d.%d not currently supported\n", 308 lvds_ver >> 4, lvds_ver & 0xf); 309 return -ENOSYS; 310 } 311 312 lth->lvds_ver = lvds_ver; 313 lth->headerlen = headerlen; 314 lth->recordlen = recordlen; 315 316 return 0; 317} 318 319static int 320get_fp_strap(struct drm_device *dev, struct nvbios *bios) 321{ 322 struct nouveau_device *device = nouveau_dev(dev); 323 324 /* 325 * The fp strap is normally dictated by the "User Strap" in 326 * PEXTDEV_BOOT_0[20:16], but on BMP cards when bit 2 of the 327 * Internal_Flags struct at 0x48 is set, the user strap gets overriden 328 * by the PCI subsystem ID during POST, but not before the previous user 329 * strap has been committed to CR58 for CR57=0xf on head A, which may be 330 * read and used instead 331 */ 332 333 if (bios->major_version < 5 && bios->data[0x48] & 0x4) 334 return NVReadVgaCrtc5758(dev, 0, 0xf) & 0xf; 335 336 if (device->card_type >= NV_50) 337 return (nv_rd32(device, NV_PEXTDEV_BOOT_0) >> 24) & 0xf; 338 else 339 return (nv_rd32(device, NV_PEXTDEV_BOOT_0) >> 16) & 0xf; 340} 341 342static int parse_fp_mode_table(struct drm_device *dev, struct nvbios *bios) 343{ 344 struct nouveau_drm *drm = nouveau_drm(dev); 345 uint8_t *fptable; 346 uint8_t fptable_ver, headerlen = 0, recordlen, fpentries = 0xf, fpindex; 347 int ret, ofs, fpstrapping; 348 struct lvdstableheader lth; 349 350 if (bios->fp.fptablepointer == 0x0) { 351 /* Apple cards don't have the fp table; the laptops use DDC */ 352 /* The table is also missing on some x86 IGPs */ 353#ifndef __powerpc__ 354 NV_ERROR(drm, "Pointer to flat panel table invalid\n"); 355#endif 356 bios->digital_min_front_porch = 0x4b; 357 return 0; 358 } 359 360 fptable = &bios->data[bios->fp.fptablepointer]; 361 fptable_ver = fptable[0]; 362 363 switch (fptable_ver) { 364 /* 365 * BMP version 0x5.0x11 BIOSen have version 1 like tables, but no 366 * version field, and miss one of the spread spectrum/PWM bytes. 367 * This could affect early GF2Go parts (not seen any appropriate ROMs 368 * though). Here we assume that a version of 0x05 matches this case 369 * (combining with a BMP version check would be better), as the 370 * common case for the panel type field is 0x0005, and that is in 371 * fact what we are reading the first byte of. 372 */ 373 case 0x05: /* some NV10, 11, 15, 16 */ 374 recordlen = 42; 375 ofs = -1; 376 break; 377 case 0x10: /* some NV15/16, and NV11+ */ 378 recordlen = 44; 379 ofs = 0; 380 break; 381 case 0x20: /* NV40+ */ 382 headerlen = fptable[1]; 383 recordlen = fptable[2]; 384 fpentries = fptable[3]; 385 /* 386 * fptable[4] is the minimum 387 * RAMDAC_FP_HCRTC -> RAMDAC_FP_HSYNC_START gap 388 */ 389 bios->digital_min_front_porch = fptable[4]; 390 ofs = -7; 391 break; 392 default: 393 NV_ERROR(drm, 394 "FP table revision %d.%d not currently supported\n", 395 fptable_ver >> 4, fptable_ver & 0xf); 396 return -ENOSYS; 397 } 398 399 if (!bios->is_mobile) /* !mobile only needs digital_min_front_porch */ 400 return 0; 401 402 ret = parse_lvds_manufacturer_table_header(dev, bios, <h); 403 if (ret) 404 return ret; 405 406 if (lth.lvds_ver == 0x30 || lth.lvds_ver == 0x40) { 407 bios->fp.fpxlatetableptr = bios->fp.lvdsmanufacturerpointer + 408 lth.headerlen + 1; 409 bios->fp.xlatwidth = lth.recordlen; 410 } 411 if (bios->fp.fpxlatetableptr == 0x0) { 412 NV_ERROR(drm, "Pointer to flat panel xlat table invalid\n"); 413 return -EINVAL; 414 } 415 416 fpstrapping = get_fp_strap(dev, bios); 417 418 fpindex = bios->data[bios->fp.fpxlatetableptr + 419 fpstrapping * bios->fp.xlatwidth]; 420 421 if (fpindex > fpentries) { 422 NV_ERROR(drm, "Bad flat panel table index\n"); 423 return -ENOENT; 424 } 425 426 /* nv4x cards need both a strap value and fpindex of 0xf to use DDC */ 427 if (lth.lvds_ver > 0x10) 428 bios->fp_no_ddc = fpstrapping != 0xf || fpindex != 0xf; 429 430 /* 431 * If either the strap or xlated fpindex value are 0xf there is no 432 * panel using a strap-derived bios mode present. this condition 433 * includes, but is different from, the DDC panel indicator above 434 */ 435 if (fpstrapping == 0xf || fpindex == 0xf) 436 return 0; 437 438 bios->fp.mode_ptr = bios->fp.fptablepointer + headerlen + 439 recordlen * fpindex + ofs; 440 441 NV_INFO(drm, "BIOS FP mode: %dx%d (%dkHz pixel clock)\n", 442 ROM16(bios->data[bios->fp.mode_ptr + 11]) + 1, 443 ROM16(bios->data[bios->fp.mode_ptr + 25]) + 1, 444 ROM16(bios->data[bios->fp.mode_ptr + 7]) * 10); 445 446 return 0; 447} 448 449bool nouveau_bios_fp_mode(struct drm_device *dev, struct drm_display_mode *mode) 450{ 451 struct nouveau_drm *drm = nouveau_drm(dev); 452 struct nvbios *bios = &drm->vbios; 453 uint8_t *mode_entry = &bios->data[bios->fp.mode_ptr]; 454 455 if (!mode) /* just checking whether we can produce a mode */ 456 return bios->fp.mode_ptr; 457 458 memset(mode, 0, sizeof(struct drm_display_mode)); 459 /* 460 * For version 1.0 (version in byte 0): 461 * bytes 1-2 are "panel type", including bits on whether Colour/mono, 462 * single/dual link, and type (TFT etc.) 463 * bytes 3-6 are bits per colour in RGBX 464 */ 465 mode->clock = ROM16(mode_entry[7]) * 10; 466 /* bytes 9-10 is HActive */ 467 mode->hdisplay = ROM16(mode_entry[11]) + 1; 468 /* 469 * bytes 13-14 is HValid Start 470 * bytes 15-16 is HValid End 471 */ 472 mode->hsync_start = ROM16(mode_entry[17]) + 1; 473 mode->hsync_end = ROM16(mode_entry[19]) + 1; 474 mode->htotal = ROM16(mode_entry[21]) + 1; 475 /* bytes 23-24, 27-30 similarly, but vertical */ 476 mode->vdisplay = ROM16(mode_entry[25]) + 1; 477 mode->vsync_start = ROM16(mode_entry[31]) + 1; 478 mode->vsync_end = ROM16(mode_entry[33]) + 1; 479 mode->vtotal = ROM16(mode_entry[35]) + 1; 480 mode->flags |= (mode_entry[37] & 0x10) ? 481 DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC; 482 mode->flags |= (mode_entry[37] & 0x1) ? 483 DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC; 484 /* 485 * bytes 38-39 relate to spread spectrum settings 486 * bytes 40-43 are something to do with PWM 487 */ 488 489 mode->status = MODE_OK; 490 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; 491 drm_mode_set_name(mode); 492 return bios->fp.mode_ptr; 493} 494 495int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, bool *if_is_24bit) 496{ 497 /* 498 * The LVDS table header is (mostly) described in 499 * parse_lvds_manufacturer_table_header(): the BIT header additionally 500 * contains the dual-link transition pxclk (in 10s kHz), at byte 5 - if 501 * straps are not being used for the panel, this specifies the frequency 502 * at which modes should be set up in the dual link style. 503 * 504 * Following the header, the BMP (ver 0xa) table has several records, 505 * indexed by a separate xlat table, indexed in turn by the fp strap in 506 * EXTDEV_BOOT. Each record had a config byte, followed by 6 script 507 * numbers for use by INIT_SUB which controlled panel init and power, 508 * and finally a dword of ms to sleep between power off and on 509 * operations. 510 * 511 * In the BIT versions, the table following the header serves as an 512 * integrated config and xlat table: the records in the table are 513 * indexed by the FP strap nibble in EXTDEV_BOOT, and each record has 514 * two bytes - the first as a config byte, the second for indexing the 515 * fp mode table pointed to by the BIT 'D' table 516 * 517 * DDC is not used until after card init, so selecting the correct table 518 * entry and setting the dual link flag for EDID equipped panels, 519 * requiring tests against the native-mode pixel clock, cannot be done 520 * until later, when this function should be called with non-zero pxclk 521 */ 522 struct nouveau_drm *drm = nouveau_drm(dev); 523 struct nvbios *bios = &drm->vbios; 524 int fpstrapping = get_fp_strap(dev, bios), lvdsmanufacturerindex = 0; 525 struct lvdstableheader lth; 526 uint16_t lvdsofs; 527 int ret, chip_version = bios->chip_version; 528 529 ret = parse_lvds_manufacturer_table_header(dev, bios, <h); 530 if (ret) 531 return ret; 532 533 switch (lth.lvds_ver) { 534 case 0x0a: /* pre NV40 */ 535 lvdsmanufacturerindex = bios->data[ 536 bios->fp.fpxlatemanufacturertableptr + 537 fpstrapping]; 538 539 /* we're done if this isn't the EDID panel case */ 540 if (!pxclk) 541 break; 542 543 if (chip_version < 0x25) { 544 /* nv17 behaviour 545 * 546 * It seems the old style lvds script pointer is reused 547 * to select 18/24 bit colour depth for EDID panels. 548 */ 549 lvdsmanufacturerindex = 550 (bios->legacy.lvds_single_a_script_ptr & 1) ? 551 2 : 0; 552 if (pxclk >= bios->fp.duallink_transition_clk) 553 lvdsmanufacturerindex++; 554 } else if (chip_version < 0x30) { 555 /* nv28 behaviour (off-chip encoder) 556 * 557 * nv28 does a complex dance of first using byte 121 of 558 * the EDID to choose the lvdsmanufacturerindex, then 559 * later attempting to match the EDID manufacturer and 560 * product IDs in a table (signature 'pidt' (panel id 561 * table?)), setting an lvdsmanufacturerindex of 0 and 562 * an fp strap of the match index (or 0xf if none) 563 */ 564 lvdsmanufacturerindex = 0; 565 } else { 566 /* nv31, nv34 behaviour */ 567 lvdsmanufacturerindex = 0; 568 if (pxclk >= bios->fp.duallink_transition_clk) 569 lvdsmanufacturerindex = 2; 570 if (pxclk >= 140000) 571 lvdsmanufacturerindex = 3; 572 } 573 574 /* 575 * nvidia set the high nibble of (cr57=f, cr58) to 576 * lvdsmanufacturerindex in this case; we don't 577 */ 578 break; 579 case 0x30: /* NV4x */ 580 case 0x40: /* G80/G90 */ 581 lvdsmanufacturerindex = fpstrapping; 582 break; 583 default: 584 NV_ERROR(drm, "LVDS table revision not currently supported\n"); 585 return -ENOSYS; 586 } 587 588 lvdsofs = bios->fp.xlated_entry = bios->fp.lvdsmanufacturerpointer + lth.headerlen + lth.recordlen * lvdsmanufacturerindex; 589 switch (lth.lvds_ver) { 590 case 0x0a: 591 bios->fp.power_off_for_reset = bios->data[lvdsofs] & 1; 592 bios->fp.reset_after_pclk_change = bios->data[lvdsofs] & 2; 593 bios->fp.dual_link = bios->data[lvdsofs] & 4; 594 bios->fp.link_c_increment = bios->data[lvdsofs] & 8; 595 *if_is_24bit = bios->data[lvdsofs] & 16; 596 break; 597 case 0x30: 598 case 0x40: 599 /* 600 * No sign of the "power off for reset" or "reset for panel 601 * on" bits, but it's safer to assume we should 602 */ 603 bios->fp.power_off_for_reset = true; 604 bios->fp.reset_after_pclk_change = true; 605 606 /* 607 * It's ok lvdsofs is wrong for nv4x edid case; dual_link is 608 * over-written, and if_is_24bit isn't used 609 */ 610 bios->fp.dual_link = bios->data[lvdsofs] & 1; 611 bios->fp.if_is_24bit = bios->data[lvdsofs] & 2; 612 bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4]; 613 bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5]) * 10; 614 break; 615 } 616 617 /* set dual_link flag for EDID case */ 618 if (pxclk && (chip_version < 0x25 || chip_version > 0x28)) 619 bios->fp.dual_link = (pxclk >= bios->fp.duallink_transition_clk); 620 621 *dl = bios->fp.dual_link; 622 623 return 0; 624} 625 626/* BIT 'U'/'d' table encoder subtables have hashes matching them to 627 * a particular set of encoders. 628 * 629 * This function returns true if a particular DCB entry matches. 630 */ 631bool 632bios_encoder_match(struct dcb_output *dcb, u32 hash) 633{ 634 if ((hash & 0x000000f0) != (dcb->location << 4)) 635 return false; 636 if ((hash & 0x0000000f) != dcb->type) 637 return false; 638 if (!(hash & (dcb->or << 16))) 639 return false; 640 641 switch (dcb->type) { 642 case DCB_OUTPUT_TMDS: 643 case DCB_OUTPUT_LVDS: 644 case DCB_OUTPUT_DP: 645 if (hash & 0x00c00000) { 646 if (!(hash & (dcb->sorconf.link << 22))) 647 return false; 648 } 649 default: 650 return true; 651 } 652} 653 654int 655nouveau_bios_run_display_table(struct drm_device *dev, u16 type, int pclk, 656 struct dcb_output *dcbent, int crtc) 657{ 658 /* 659 * The display script table is located by the BIT 'U' table. 660 * 661 * It contains an array of pointers to various tables describing 662 * a particular output type. The first 32-bits of the output 663 * tables contains similar information to a DCB entry, and is 664 * used to decide whether that particular table is suitable for 665 * the output you want to access. 666 * 667 * The "record header length" field here seems to indicate the 668 * offset of the first configuration entry in the output tables. 669 * This is 10 on most cards I've seen, but 12 has been witnessed 670 * on DP cards, and there's another script pointer within the 671 * header. 672 * 673 * offset + 0 ( 8 bits): version 674 * offset + 1 ( 8 bits): header length 675 * offset + 2 ( 8 bits): record length 676 * offset + 3 ( 8 bits): number of records 677 * offset + 4 ( 8 bits): record header length 678 * offset + 5 (16 bits): pointer to first output script table 679 */ 680 681 struct nouveau_drm *drm = nouveau_drm(dev); 682 struct nvbios *bios = &drm->vbios; 683 uint8_t *table = &bios->data[bios->display.script_table_ptr]; 684 uint8_t *otable = NULL; 685 uint16_t script; 686 int i; 687 688 if (!bios->display.script_table_ptr) { 689 NV_ERROR(drm, "No pointer to output script table\n"); 690 return 1; 691 } 692 693 /* 694 * Nothing useful has been in any of the pre-2.0 tables I've seen, 695 * so until they are, we really don't need to care. 696 */ 697 if (table[0] < 0x20) 698 return 1; 699 700 if (table[0] != 0x20 && table[0] != 0x21) { 701 NV_ERROR(drm, "Output script table version 0x%02x unknown\n", 702 table[0]); 703 return 1; 704 } 705 706 /* 707 * The output script tables describing a particular output type 708 * look as follows: 709 * 710 * offset + 0 (32 bits): output this table matches (hash of DCB) 711 * offset + 4 ( 8 bits): unknown 712 * offset + 5 ( 8 bits): number of configurations 713 * offset + 6 (16 bits): pointer to some script 714 * offset + 8 (16 bits): pointer to some script 715 * 716 * headerlen == 10 717 * offset + 10 : configuration 0 718 * 719 * headerlen == 12 720 * offset + 10 : pointer to some script 721 * offset + 12 : configuration 0 722 * 723 * Each config entry is as follows: 724 * 725 * offset + 0 (16 bits): unknown, assumed to be a match value 726 * offset + 2 (16 bits): pointer to script table (clock set?) 727 * offset + 4 (16 bits): pointer to script table (reset?) 728 * 729 * There doesn't appear to be a count value to say how many 730 * entries exist in each script table, instead, a 0 value in 731 * the first 16-bit word seems to indicate both the end of the 732 * list and the default entry. The second 16-bit word in the 733 * script tables is a pointer to the script to execute. 734 */ 735 736 NV_DEBUG(drm, "Searching for output entry for %d %d %d\n", 737 dcbent->type, dcbent->location, dcbent->or); 738 for (i = 0; i < table[3]; i++) { 739 otable = ROMPTR(dev, table[table[1] + (i * table[2])]); 740 if (otable && bios_encoder_match(dcbent, ROM32(otable[0]))) 741 break; 742 } 743 744 if (!otable) { 745 NV_DEBUG(drm, "failed to match any output table\n"); 746 return 1; 747 } 748 749 if (pclk < -2 || pclk > 0) { 750 /* Try to find matching script table entry */ 751 for (i = 0; i < otable[5]; i++) { 752 if (ROM16(otable[table[4] + i*6]) == type) 753 break; 754 } 755 756 if (i == otable[5]) { 757 NV_ERROR(drm, "Table 0x%04x not found for %d/%d, " 758 "using first\n", 759 type, dcbent->type, dcbent->or); 760 i = 0; 761 } 762 } 763 764 if (pclk == 0) { 765 script = ROM16(otable[6]); 766 if (!script) { 767 NV_DEBUG(drm, "output script 0 not found\n"); 768 return 1; 769 } 770 771 NV_DEBUG(drm, "0x%04X: parsing output script 0\n", script); 772 nouveau_bios_run_init_table(dev, script, dcbent, crtc); 773 } else 774 if (pclk == -1) { 775 script = ROM16(otable[8]); 776 if (!script) { 777 NV_DEBUG(drm, "output script 1 not found\n"); 778 return 1; 779 } 780 781 NV_DEBUG(drm, "0x%04X: parsing output script 1\n", script); 782 nouveau_bios_run_init_table(dev, script, dcbent, crtc); 783 } else 784 if (pclk == -2) { 785 if (table[4] >= 12) 786 script = ROM16(otable[10]); 787 else 788 script = 0; 789 if (!script) { 790 NV_DEBUG(drm, "output script 2 not found\n"); 791 return 1; 792 } 793 794 NV_DEBUG(drm, "0x%04X: parsing output script 2\n", script); 795 nouveau_bios_run_init_table(dev, script, dcbent, crtc); 796 } else 797 if (pclk > 0) { 798 script = ROM16(otable[table[4] + i*6 + 2]); 799 if (script) 800 script = clkcmptable(bios, script, pclk); 801 if (!script) { 802 NV_DEBUG(drm, "clock script 0 not found\n"); 803 return 1; 804 } 805 806 NV_DEBUG(drm, "0x%04X: parsing clock script 0\n", script); 807 nouveau_bios_run_init_table(dev, script, dcbent, crtc); 808 } else 809 if (pclk < 0) { 810 script = ROM16(otable[table[4] + i*6 + 4]); 811 if (script) 812 script = clkcmptable(bios, script, -pclk); 813 if (!script) { 814 NV_DEBUG(drm, "clock script 1 not found\n"); 815 return 1; 816 } 817 818 NV_DEBUG(drm, "0x%04X: parsing clock script 1\n", script); 819 nouveau_bios_run_init_table(dev, script, dcbent, crtc); 820 } 821 822 return 0; 823} 824 825 826int run_tmds_table(struct drm_device *dev, struct dcb_output *dcbent, int head, int pxclk) 827{ 828 /* 829 * the pxclk parameter is in kHz 830 * 831 * This runs the TMDS regs setting code found on BIT bios cards 832 * 833 * For ffs(or) == 1 use the first table, for ffs(or) == 2 and 834 * ffs(or) == 3, use the second. 835 */ 836 837 struct nouveau_drm *drm = nouveau_drm(dev); 838 struct nouveau_device *device = nv_device(drm->device); 839 struct nvbios *bios = &drm->vbios; 840 int cv = bios->chip_version; 841 uint16_t clktable = 0, scriptptr; 842 uint32_t sel_clk_binding, sel_clk; 843 844 /* pre-nv17 off-chip tmds uses scripts, post nv17 doesn't */ 845 if (cv >= 0x17 && cv != 0x1a && cv != 0x20 && 846 dcbent->location != DCB_LOC_ON_CHIP) 847 return 0; 848 849 switch (ffs(dcbent->or)) { 850 case 1: 851 clktable = bios->tmds.output0_script_ptr; 852 break; 853 case 2: 854 case 3: 855 clktable = bios->tmds.output1_script_ptr; 856 break; 857 } 858 859 if (!clktable) { 860 NV_ERROR(drm, "Pixel clock comparison table not found\n"); 861 return -EINVAL; 862 } 863 864 scriptptr = clkcmptable(bios, clktable, pxclk); 865 866 if (!scriptptr) { 867 NV_ERROR(drm, "TMDS output init script not found\n"); 868 return -ENOENT; 869 } 870 871 /* don't let script change pll->head binding */ 872 sel_clk_binding = nv_rd32(device, NV_PRAMDAC_SEL_CLK) & 0x50000; 873 run_digital_op_script(dev, scriptptr, dcbent, head, pxclk >= 165000); 874 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000; 875 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding); 876 877 return 0; 878} 879 880static void parse_bios_version(struct drm_device *dev, struct nvbios *bios, uint16_t offset) 881{ 882 /* 883 * offset + 0 (8 bits): Micro version 884 * offset + 1 (8 bits): Minor version 885 * offset + 2 (8 bits): Chip version 886 * offset + 3 (8 bits): Major version 887 */ 888 struct nouveau_drm *drm = nouveau_drm(dev); 889 890 bios->major_version = bios->data[offset + 3]; 891 bios->chip_version = bios->data[offset + 2]; 892 NV_INFO(drm, "Bios version %02x.%02x.%02x.%02x\n", 893 bios->data[offset + 3], bios->data[offset + 2], 894 bios->data[offset + 1], bios->data[offset]); 895} 896 897static void parse_script_table_pointers(struct nvbios *bios, uint16_t offset) 898{ 899 /* 900 * Parses the init table segment for pointers used in script execution. 901 * 902 * offset + 0 (16 bits): init script tables pointer 903 * offset + 2 (16 bits): macro index table pointer 904 * offset + 4 (16 bits): macro table pointer 905 * offset + 6 (16 bits): condition table pointer 906 * offset + 8 (16 bits): io condition table pointer 907 * offset + 10 (16 bits): io flag condition table pointer 908 * offset + 12 (16 bits): init function table pointer 909 */ 910 911 bios->init_script_tbls_ptr = ROM16(bios->data[offset]); 912 bios->macro_index_tbl_ptr = ROM16(bios->data[offset + 2]); 913 bios->macro_tbl_ptr = ROM16(bios->data[offset + 4]); 914 bios->condition_tbl_ptr = ROM16(bios->data[offset + 6]); 915 bios->io_condition_tbl_ptr = ROM16(bios->data[offset + 8]); 916 bios->io_flag_condition_tbl_ptr = ROM16(bios->data[offset + 10]); 917 bios->init_function_tbl_ptr = ROM16(bios->data[offset + 12]); 918} 919 920static int parse_bit_A_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 921{ 922 /* 923 * Parses the load detect values for g80 cards. 924 * 925 * offset + 0 (16 bits): loadval table pointer 926 */ 927 928 struct nouveau_drm *drm = nouveau_drm(dev); 929 uint16_t load_table_ptr; 930 uint8_t version, headerlen, entrylen, num_entries; 931 932 if (bitentry->length != 3) { 933 NV_ERROR(drm, "Do not understand BIT A table\n"); 934 return -EINVAL; 935 } 936 937 load_table_ptr = ROM16(bios->data[bitentry->offset]); 938 939 if (load_table_ptr == 0x0) { 940 NV_DEBUG(drm, "Pointer to BIT loadval table invalid\n"); 941 return -EINVAL; 942 } 943 944 version = bios->data[load_table_ptr]; 945 946 if (version != 0x10) { 947 NV_ERROR(drm, "BIT loadval table version %d.%d not supported\n", 948 version >> 4, version & 0xF); 949 return -ENOSYS; 950 } 951 952 headerlen = bios->data[load_table_ptr + 1]; 953 entrylen = bios->data[load_table_ptr + 2]; 954 num_entries = bios->data[load_table_ptr + 3]; 955 956 if (headerlen != 4 || entrylen != 4 || num_entries != 2) { 957 NV_ERROR(drm, "Do not understand BIT loadval table\n"); 958 return -EINVAL; 959 } 960 961 /* First entry is normal dac, 2nd tv-out perhaps? */ 962 bios->dactestval = ROM32(bios->data[load_table_ptr + headerlen]) & 0x3ff; 963 964 return 0; 965} 966 967static int parse_bit_C_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 968{ 969 /* 970 * offset + 8 (16 bits): PLL limits table pointer 971 * 972 * There's more in here, but that's unknown. 973 */ 974 struct nouveau_drm *drm = nouveau_drm(dev); 975 976 if (bitentry->length < 10) { 977 NV_ERROR(drm, "Do not understand BIT C table\n"); 978 return -EINVAL; 979 } 980 981 bios->pll_limit_tbl_ptr = ROM16(bios->data[bitentry->offset + 8]); 982 983 return 0; 984} 985 986static int parse_bit_display_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 987{ 988 /* 989 * Parses the flat panel table segment that the bit entry points to. 990 * Starting at bitentry->offset: 991 * 992 * offset + 0 (16 bits): ??? table pointer - seems to have 18 byte 993 * records beginning with a freq. 994 * offset + 2 (16 bits): mode table pointer 995 */ 996 struct nouveau_drm *drm = nouveau_drm(dev); 997 998 if (bitentry->length != 4) { 999 NV_ERROR(drm, "Do not understand BIT display table\n"); 1000 return -EINVAL; 1001 } 1002 1003 bios->fp.fptablepointer = ROM16(bios->data[bitentry->offset + 2]); 1004 1005 return 0; 1006} 1007 1008static int parse_bit_init_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 1009{ 1010 /* 1011 * Parses the init table segment that the bit entry points to. 1012 * 1013 * See parse_script_table_pointers for layout 1014 */ 1015 struct nouveau_drm *drm = nouveau_drm(dev); 1016 1017 if (bitentry->length < 14) { 1018 NV_ERROR(drm, "Do not understand init table\n"); 1019 return -EINVAL; 1020 } 1021 1022 parse_script_table_pointers(bios, bitentry->offset); 1023 1024 if (bitentry->length >= 16) 1025 bios->some_script_ptr = ROM16(bios->data[bitentry->offset + 14]); 1026 if (bitentry->length >= 18) 1027 bios->init96_tbl_ptr = ROM16(bios->data[bitentry->offset + 16]); 1028 1029 return 0; 1030} 1031 1032static int parse_bit_i_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 1033{ 1034 /* 1035 * BIT 'i' (info?) table 1036 * 1037 * offset + 0 (32 bits): BIOS version dword (as in B table) 1038 * offset + 5 (8 bits): BIOS feature byte (same as for BMP?) 1039 * offset + 13 (16 bits): pointer to table containing DAC load 1040 * detection comparison values 1041 * 1042 * There's other things in the table, purpose unknown 1043 */ 1044 1045 struct nouveau_drm *drm = nouveau_drm(dev); 1046 uint16_t daccmpoffset; 1047 uint8_t dacver, dacheaderlen; 1048 1049 if (bitentry->length < 6) { 1050 NV_ERROR(drm, "BIT i table too short for needed information\n"); 1051 return -EINVAL; 1052 } 1053 1054 parse_bios_version(dev, bios, bitentry->offset); 1055 1056 /* 1057 * bit 4 seems to indicate a mobile bios (doesn't suffer from BMP's 1058 * Quadro identity crisis), other bits possibly as for BMP feature byte 1059 */ 1060 bios->feature_byte = bios->data[bitentry->offset + 5]; 1061 bios->is_mobile = bios->feature_byte & FEATURE_MOBILE; 1062 1063 if (bitentry->length < 15) { 1064 NV_WARN(drm, "BIT i table not long enough for DAC load " 1065 "detection comparison table\n"); 1066 return -EINVAL; 1067 } 1068 1069 daccmpoffset = ROM16(bios->data[bitentry->offset + 13]); 1070 1071 /* doesn't exist on g80 */ 1072 if (!daccmpoffset) 1073 return 0; 1074 1075 /* 1076 * The first value in the table, following the header, is the 1077 * comparison value, the second entry is a comparison value for 1078 * TV load detection. 1079 */ 1080 1081 dacver = bios->data[daccmpoffset]; 1082 dacheaderlen = bios->data[daccmpoffset + 1]; 1083 1084 if (dacver != 0x00 && dacver != 0x10) { 1085 NV_WARN(drm, "DAC load detection comparison table version " 1086 "%d.%d not known\n", dacver >> 4, dacver & 0xf); 1087 return -ENOSYS; 1088 } 1089 1090 bios->dactestval = ROM32(bios->data[daccmpoffset + dacheaderlen]); 1091 bios->tvdactestval = ROM32(bios->data[daccmpoffset + dacheaderlen + 4]); 1092 1093 return 0; 1094} 1095 1096static int parse_bit_lvds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 1097{ 1098 /* 1099 * Parses the LVDS table segment that the bit entry points to. 1100 * Starting at bitentry->offset: 1101 * 1102 * offset + 0 (16 bits): LVDS strap xlate table pointer 1103 */ 1104 1105 struct nouveau_drm *drm = nouveau_drm(dev); 1106 1107 if (bitentry->length != 2) { 1108 NV_ERROR(drm, "Do not understand BIT LVDS table\n"); 1109 return -EINVAL; 1110 } 1111 1112 /* 1113 * No idea if it's still called the LVDS manufacturer table, but 1114 * the concept's close enough. 1115 */ 1116 bios->fp.lvdsmanufacturerpointer = ROM16(bios->data[bitentry->offset]); 1117 1118 return 0; 1119} 1120 1121static int 1122parse_bit_M_tbl_entry(struct drm_device *dev, struct nvbios *bios, 1123 struct bit_entry *bitentry) 1124{ 1125 /* 1126 * offset + 2 (8 bits): number of options in an 1127 * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode option set 1128 * offset + 3 (16 bits): pointer to strap xlate table for RAM 1129 * restrict option selection 1130 * 1131 * There's a bunch of bits in this table other than the RAM restrict 1132 * stuff that we don't use - their use currently unknown 1133 */ 1134 1135 /* 1136 * Older bios versions don't have a sufficiently long table for 1137 * what we want 1138 */ 1139 if (bitentry->length < 0x5) 1140 return 0; 1141 1142 if (bitentry->version < 2) { 1143 bios->ram_restrict_group_count = bios->data[bitentry->offset + 2]; 1144 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 3]); 1145 } else { 1146 bios->ram_restrict_group_count = bios->data[bitentry->offset + 0]; 1147 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 1]); 1148 } 1149 1150 return 0; 1151} 1152 1153static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 1154{ 1155 /* 1156 * Parses the pointer to the TMDS table 1157 * 1158 * Starting at bitentry->offset: 1159 * 1160 * offset + 0 (16 bits): TMDS table pointer 1161 * 1162 * The TMDS table is typically found just before the DCB table, with a 1163 * characteristic signature of 0x11,0x13 (1.1 being version, 0x13 being 1164 * length?) 1165 * 1166 * At offset +7 is a pointer to a script, which I don't know how to 1167 * run yet. 1168 * At offset +9 is a pointer to another script, likewise 1169 * Offset +11 has a pointer to a table where the first word is a pxclk 1170 * frequency and the second word a pointer to a script, which should be 1171 * run if the comparison pxclk frequency is less than the pxclk desired. 1172 * This repeats for decreasing comparison frequencies 1173 * Offset +13 has a pointer to a similar table 1174 * The selection of table (and possibly +7/+9 script) is dictated by 1175 * "or" from the DCB. 1176 */ 1177 1178 struct nouveau_drm *drm = nouveau_drm(dev); 1179 uint16_t tmdstableptr, script1, script2; 1180 1181 if (bitentry->length != 2) { 1182 NV_ERROR(drm, "Do not understand BIT TMDS table\n"); 1183 return -EINVAL; 1184 } 1185 1186 tmdstableptr = ROM16(bios->data[bitentry->offset]); 1187 if (!tmdstableptr) { 1188 NV_ERROR(drm, "Pointer to TMDS table invalid\n"); 1189 return -EINVAL; 1190 } 1191 1192 NV_INFO(drm, "TMDS table version %d.%d\n", 1193 bios->data[tmdstableptr] >> 4, bios->data[tmdstableptr] & 0xf); 1194 1195 /* nv50+ has v2.0, but we don't parse it atm */ 1196 if (bios->data[tmdstableptr] != 0x11) 1197 return -ENOSYS; 1198 1199 /* 1200 * These two scripts are odd: they don't seem to get run even when 1201 * they are not stubbed. 1202 */ 1203 script1 = ROM16(bios->data[tmdstableptr + 7]); 1204 script2 = ROM16(bios->data[tmdstableptr + 9]); 1205 if (bios->data[script1] != 'q' || bios->data[script2] != 'q') 1206 NV_WARN(drm, "TMDS table script pointers not stubbed\n"); 1207 1208 bios->tmds.output0_script_ptr = ROM16(bios->data[tmdstableptr + 11]); 1209 bios->tmds.output1_script_ptr = ROM16(bios->data[tmdstableptr + 13]); 1210 1211 return 0; 1212} 1213 1214static int 1215parse_bit_U_tbl_entry(struct drm_device *dev, struct nvbios *bios, 1216 struct bit_entry *bitentry) 1217{ 1218 /* 1219 * Parses the pointer to the G80 output script tables 1220 * 1221 * Starting at bitentry->offset: 1222 * 1223 * offset + 0 (16 bits): output script table pointer 1224 */ 1225 1226 struct nouveau_drm *drm = nouveau_drm(dev); 1227 uint16_t outputscripttableptr; 1228 1229 if (bitentry->length != 3) { 1230 NV_ERROR(drm, "Do not understand BIT U table\n"); 1231 return -EINVAL; 1232 } 1233 1234 outputscripttableptr = ROM16(bios->data[bitentry->offset]); 1235 bios->display.script_table_ptr = outputscripttableptr; 1236 return 0; 1237} 1238 1239struct bit_table { 1240 const char id; 1241 int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *); 1242}; 1243 1244#define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry }) 1245 1246int 1247bit_table(struct drm_device *dev, u8 id, struct bit_entry *bit) 1248{ 1249 struct nouveau_drm *drm = nouveau_drm(dev); 1250 struct nvbios *bios = &drm->vbios; 1251 u8 entries, *entry; 1252 1253 if (bios->type != NVBIOS_BIT) 1254 return -ENODEV; 1255 1256 entries = bios->data[bios->offset + 10]; 1257 entry = &bios->data[bios->offset + 12]; 1258 while (entries--) { 1259 if (entry[0] == id) { 1260 bit->id = entry[0]; 1261 bit->version = entry[1]; 1262 bit->length = ROM16(entry[2]); 1263 bit->offset = ROM16(entry[4]); 1264 bit->data = ROMPTR(dev, entry[4]); 1265 return 0; 1266 } 1267 1268 entry += bios->data[bios->offset + 9]; 1269 } 1270 1271 return -ENOENT; 1272} 1273 1274static int 1275parse_bit_table(struct nvbios *bios, const uint16_t bitoffset, 1276 struct bit_table *table) 1277{ 1278 struct drm_device *dev = bios->dev; 1279 struct nouveau_drm *drm = nouveau_drm(dev); 1280 struct bit_entry bitentry; 1281 1282 if (bit_table(dev, table->id, &bitentry) == 0) 1283 return table->parse_fn(dev, bios, &bitentry); 1284 1285 NV_INFO(drm, "BIT table '%c' not found\n", table->id); 1286 return -ENOSYS; 1287} 1288 1289static int 1290parse_bit_structure(struct nvbios *bios, const uint16_t bitoffset) 1291{ 1292 int ret; 1293 1294 /* 1295 * The only restriction on parsing order currently is having 'i' first 1296 * for use of bios->*_version or bios->feature_byte while parsing; 1297 * functions shouldn't be actually *doing* anything apart from pulling 1298 * data from the image into the bios struct, thus no interdependencies 1299 */ 1300 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('i', i)); 1301 if (ret) /* info? */ 1302 return ret; 1303 if (bios->major_version >= 0x60) /* g80+ */ 1304 parse_bit_table(bios, bitoffset, &BIT_TABLE('A', A)); 1305 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('C', C)); 1306 if (ret) 1307 return ret; 1308 parse_bit_table(bios, bitoffset, &BIT_TABLE('D', display)); 1309 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('I', init)); 1310 if (ret) 1311 return ret; 1312 parse_bit_table(bios, bitoffset, &BIT_TABLE('M', M)); /* memory? */ 1313 parse_bit_table(bios, bitoffset, &BIT_TABLE('L', lvds)); 1314 parse_bit_table(bios, bitoffset, &BIT_TABLE('T', tmds)); 1315 parse_bit_table(bios, bitoffset, &BIT_TABLE('U', U)); 1316 1317 return 0; 1318} 1319 1320static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsigned int offset) 1321{ 1322 /* 1323 * Parses the BMP structure for useful things, but does not act on them 1324 * 1325 * offset + 5: BMP major version 1326 * offset + 6: BMP minor version 1327 * offset + 9: BMP feature byte 1328 * offset + 10: BCD encoded BIOS version 1329 * 1330 * offset + 18: init script table pointer (for bios versions < 5.10h) 1331 * offset + 20: extra init script table pointer (for bios 1332 * versions < 5.10h) 1333 * 1334 * offset + 24: memory init table pointer (used on early bios versions) 1335 * offset + 26: SDR memory sequencing setup data table 1336 * offset + 28: DDR memory sequencing setup data table 1337 * 1338 * offset + 54: index of I2C CRTC pair to use for CRT output 1339 * offset + 55: index of I2C CRTC pair to use for TV output 1340 * offset + 56: index of I2C CRTC pair to use for flat panel output 1341 * offset + 58: write CRTC index for I2C pair 0 1342 * offset + 59: read CRTC index for I2C pair 0 1343 * offset + 60: write CRTC index for I2C pair 1 1344 * offset + 61: read CRTC index for I2C pair 1 1345 * 1346 * offset + 67: maximum internal PLL frequency (single stage PLL) 1347 * offset + 71: minimum internal PLL frequency (single stage PLL) 1348 * 1349 * offset + 75: script table pointers, as described in 1350 * parse_script_table_pointers 1351 * 1352 * offset + 89: TMDS single link output A table pointer 1353 * offset + 91: TMDS single link output B table pointer 1354 * offset + 95: LVDS single link output A table pointer 1355 * offset + 105: flat panel timings table pointer 1356 * offset + 107: flat panel strapping translation table pointer 1357 * offset + 117: LVDS manufacturer panel config table pointer 1358 * offset + 119: LVDS manufacturer strapping translation table pointer 1359 * 1360 * offset + 142: PLL limits table pointer 1361 * 1362 * offset + 156: minimum pixel clock for LVDS dual link 1363 */ 1364 1365 struct nouveau_drm *drm = nouveau_drm(dev); 1366 uint8_t *bmp = &bios->data[offset], bmp_version_major, bmp_version_minor; 1367 uint16_t bmplength; 1368 uint16_t legacy_scripts_offset, legacy_i2c_offset; 1369 1370 /* load needed defaults in case we can't parse this info */ 1371 bios->digital_min_front_porch = 0x4b; 1372 bios->fmaxvco = 256000; 1373 bios->fminvco = 128000; 1374 bios->fp.duallink_transition_clk = 90000; 1375 1376 bmp_version_major = bmp[5]; 1377 bmp_version_minor = bmp[6]; 1378 1379 NV_INFO(drm, "BMP version %d.%d\n", 1380 bmp_version_major, bmp_version_minor); 1381 1382 /* 1383 * Make sure that 0x36 is blank and can't be mistaken for a DCB 1384 * pointer on early versions 1385 */ 1386 if (bmp_version_major < 5) 1387 *(uint16_t *)&bios->data[0x36] = 0; 1388 1389 /* 1390 * Seems that the minor version was 1 for all major versions prior 1391 * to 5. Version 6 could theoretically exist, but I suspect BIT 1392 * happened instead. 1393 */ 1394 if ((bmp_version_major < 5 && bmp_version_minor != 1) || bmp_version_major > 5) { 1395 NV_ERROR(drm, "You have an unsupported BMP version. " 1396 "Please send in your bios\n"); 1397 return -ENOSYS; 1398 } 1399 1400 if (bmp_version_major == 0) 1401 /* nothing that's currently useful in this version */ 1402 return 0; 1403 else if (bmp_version_major == 1) 1404 bmplength = 44; /* exact for 1.01 */ 1405 else if (bmp_version_major == 2) 1406 bmplength = 48; /* exact for 2.01 */ 1407 else if (bmp_version_major == 3) 1408 bmplength = 54; 1409 /* guessed - mem init tables added in this version */ 1410 else if (bmp_version_major == 4 || bmp_version_minor < 0x1) 1411 /* don't know if 5.0 exists... */ 1412 bmplength = 62; 1413 /* guessed - BMP I2C indices added in version 4*/ 1414 else if (bmp_version_minor < 0x6) 1415 bmplength = 67; /* exact for 5.01 */ 1416 else if (bmp_version_minor < 0x10) 1417 bmplength = 75; /* exact for 5.06 */ 1418 else if (bmp_version_minor == 0x10) 1419 bmplength = 89; /* exact for 5.10h */ 1420 else if (bmp_version_minor < 0x14) 1421 bmplength = 118; /* exact for 5.11h */ 1422 else if (bmp_version_minor < 0x24) 1423 /* 1424 * Not sure of version where pll limits came in; 1425 * certainly exist by 0x24 though. 1426 */ 1427 /* length not exact: this is long enough to get lvds members */ 1428 bmplength = 123; 1429 else if (bmp_version_minor < 0x27) 1430 /* 1431 * Length not exact: this is long enough to get pll limit 1432 * member 1433 */ 1434 bmplength = 144; 1435 else 1436 /* 1437 * Length not exact: this is long enough to get dual link 1438 * transition clock. 1439 */ 1440 bmplength = 158; 1441 1442 /* checksum */ 1443 if (nv_cksum(bmp, 8)) { 1444 NV_ERROR(drm, "Bad BMP checksum\n"); 1445 return -EINVAL; 1446 } 1447 1448 /* 1449 * Bit 4 seems to indicate either a mobile bios or a quadro card -- 1450 * mobile behaviour consistent (nv11+), quadro only seen nv18gl-nv36gl 1451 * (not nv10gl), bit 5 that the flat panel tables are present, and 1452 * bit 6 a tv bios. 1453 */ 1454 bios->feature_byte = bmp[9]; 1455 1456 parse_bios_version(dev, bios, offset + 10); 1457 1458 if (bmp_version_major < 5 || bmp_version_minor < 0x10) 1459 bios->old_style_init = true; 1460 legacy_scripts_offset = 18; 1461 if (bmp_version_major < 2) 1462 legacy_scripts_offset -= 4; 1463 bios->init_script_tbls_ptr = ROM16(bmp[legacy_scripts_offset]); 1464 bios->extra_init_script_tbl_ptr = ROM16(bmp[legacy_scripts_offset + 2]); 1465 1466 if (bmp_version_major > 2) { /* appears in BMP 3 */ 1467 bios->legacy.mem_init_tbl_ptr = ROM16(bmp[24]); 1468 bios->legacy.sdr_seq_tbl_ptr = ROM16(bmp[26]); 1469 bios->legacy.ddr_seq_tbl_ptr = ROM16(bmp[28]); 1470 } 1471 1472 legacy_i2c_offset = 0x48; /* BMP version 2 & 3 */ 1473 if (bmplength > 61) 1474 legacy_i2c_offset = offset + 54; 1475 bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset]; 1476 bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1]; 1477 bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2]; 1478 1479 if (bmplength > 74) { 1480 bios->fmaxvco = ROM32(bmp[67]); 1481 bios->fminvco = ROM32(bmp[71]); 1482 } 1483 if (bmplength > 88) 1484 parse_script_table_pointers(bios, offset + 75); 1485 if (bmplength > 94) { 1486 bios->tmds.output0_script_ptr = ROM16(bmp[89]); 1487 bios->tmds.output1_script_ptr = ROM16(bmp[91]); 1488 /* 1489 * Never observed in use with lvds scripts, but is reused for 1490 * 18/24 bit panel interface default for EDID equipped panels 1491 * (if_is_24bit not set directly to avoid any oscillation). 1492 */ 1493 bios->legacy.lvds_single_a_script_ptr = ROM16(bmp[95]); 1494 } 1495 if (bmplength > 108) { 1496 bios->fp.fptablepointer = ROM16(bmp[105]); 1497 bios->fp.fpxlatetableptr = ROM16(bmp[107]); 1498 bios->fp.xlatwidth = 1; 1499 } 1500 if (bmplength > 120) { 1501 bios->fp.lvdsmanufacturerpointer = ROM16(bmp[117]); 1502 bios->fp.fpxlatemanufacturertableptr = ROM16(bmp[119]); 1503 } 1504 if (bmplength > 143) 1505 bios->pll_limit_tbl_ptr = ROM16(bmp[142]); 1506 1507 if (bmplength > 157) 1508 bios->fp.duallink_transition_clk = ROM16(bmp[156]) * 10; 1509 1510 return 0; 1511} 1512 1513static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len) 1514{ 1515 int i, j; 1516 1517 for (i = 0; i <= (n - len); i++) { 1518 for (j = 0; j < len; j++) 1519 if (data[i + j] != str[j]) 1520 break; 1521 if (j == len) 1522 return i; 1523 } 1524 1525 return 0; 1526} 1527 1528void * 1529olddcb_table(struct drm_device *dev) 1530{ 1531 struct nouveau_drm *drm = nouveau_drm(dev); 1532 u8 *dcb = NULL; 1533 1534 if (nv_device(drm->device)->card_type > NV_04) 1535 dcb = ROMPTR(dev, drm->vbios.data[0x36]); 1536 if (!dcb) { 1537 NV_WARN(drm, "No DCB data found in VBIOS\n"); 1538 return NULL; 1539 } 1540 1541 if (dcb[0] >= 0x41) { 1542 NV_WARN(drm, "DCB version 0x%02x unknown\n", dcb[0]); 1543 return NULL; 1544 } else 1545 if (dcb[0] >= 0x30) { 1546 if (ROM32(dcb[6]) == 0x4edcbdcb) 1547 return dcb; 1548 } else 1549 if (dcb[0] >= 0x20) { 1550 if (ROM32(dcb[4]) == 0x4edcbdcb) 1551 return dcb; 1552 } else 1553 if (dcb[0] >= 0x15) { 1554 if (!memcmp(&dcb[-7], "DEV_REC", 7)) 1555 return dcb; 1556 } else { 1557 /* 1558 * v1.4 (some NV15/16, NV11+) seems the same as v1.5, but 1559 * always has the same single (crt) entry, even when tv-out 1560 * present, so the conclusion is this version cannot really 1561 * be used. 1562 * 1563 * v1.2 tables (some NV6/10, and NV15+) normally have the 1564 * same 5 entries, which are not specific to the card and so 1565 * no use. 1566 * 1567 * v1.2 does have an I2C table that read_dcb_i2c_table can 1568 * handle, but cards exist (nv11 in #14821) with a bad i2c 1569 * table pointer, so use the indices parsed in 1570 * parse_bmp_structure. 1571 * 1572 * v1.1 (NV5+, maybe some NV4) is entirely unhelpful 1573 */ 1574 NV_WARN(drm, "No useful DCB data in VBIOS\n"); 1575 return NULL; 1576 } 1577 1578 NV_WARN(drm, "DCB header validation failed\n"); 1579 return NULL; 1580} 1581 1582void * 1583olddcb_outp(struct drm_device *dev, u8 idx) 1584{ 1585 u8 *dcb = olddcb_table(dev); 1586 if (dcb && dcb[0] >= 0x30) { 1587 if (idx < dcb[2]) 1588 return dcb + dcb[1] + (idx * dcb[3]); 1589 } else 1590 if (dcb && dcb[0] >= 0x20) { 1591 u8 *i2c = ROMPTR(dev, dcb[2]); 1592 u8 *ent = dcb + 8 + (idx * 8); 1593 if (i2c && ent < i2c) 1594 return ent; 1595 } else 1596 if (dcb && dcb[0] >= 0x15) { 1597 u8 *i2c = ROMPTR(dev, dcb[2]); 1598 u8 *ent = dcb + 4 + (idx * 10); 1599 if (i2c && ent < i2c) 1600 return ent; 1601 } 1602 1603 return NULL; 1604} 1605 1606int 1607olddcb_outp_foreach(struct drm_device *dev, void *data, 1608 int (*exec)(struct drm_device *, void *, int idx, u8 *outp)) 1609{ 1610 int ret, idx = -1; 1611 u8 *outp = NULL; 1612 while ((outp = olddcb_outp(dev, ++idx))) { 1613 if (ROM32(outp[0]) == 0x00000000) 1614 break; /* seen on an NV11 with DCB v1.5 */ 1615 if (ROM32(outp[0]) == 0xffffffff) 1616 break; /* seen on an NV17 with DCB v2.0 */ 1617 1618 if ((outp[0] & 0x0f) == DCB_OUTPUT_UNUSED) 1619 continue; 1620 if ((outp[0] & 0x0f) == DCB_OUTPUT_EOL) 1621 break; 1622 1623 ret = exec(dev, data, idx, outp); 1624 if (ret) 1625 return ret; 1626 } 1627 1628 return 0; 1629} 1630 1631u8 * 1632olddcb_conntab(struct drm_device *dev) 1633{ 1634 u8 *dcb = olddcb_table(dev); 1635 if (dcb && dcb[0] >= 0x30 && dcb[1] >= 0x16) { 1636 u8 *conntab = ROMPTR(dev, dcb[0x14]); 1637 if (conntab && conntab[0] >= 0x30 && conntab[0] <= 0x40) 1638 return conntab; 1639 } 1640 return NULL; 1641} 1642 1643u8 * 1644olddcb_conn(struct drm_device *dev, u8 idx) 1645{ 1646 u8 *conntab = olddcb_conntab(dev); 1647 if (conntab && idx < conntab[2]) 1648 return conntab + conntab[1] + (idx * conntab[3]); 1649 return NULL; 1650} 1651 1652static struct dcb_output *new_dcb_entry(struct dcb_table *dcb) 1653{ 1654 struct dcb_output *entry = &dcb->entry[dcb->entries]; 1655 1656 memset(entry, 0, sizeof(struct dcb_output)); 1657 entry->index = dcb->entries++; 1658 1659 return entry; 1660} 1661 1662static void fabricate_dcb_output(struct dcb_table *dcb, int type, int i2c, 1663 int heads, int or) 1664{ 1665 struct dcb_output *entry = new_dcb_entry(dcb); 1666 1667 entry->type = type; 1668 entry->i2c_index = i2c; 1669 entry->heads = heads; 1670 if (type != DCB_OUTPUT_ANALOG) 1671 entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */ 1672 entry->or = or; 1673} 1674 1675static bool 1676parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb, 1677 uint32_t conn, uint32_t conf, struct dcb_output *entry) 1678{ 1679 struct nouveau_drm *drm = nouveau_drm(dev); 1680 1681 entry->type = conn & 0xf; 1682 entry->i2c_index = (conn >> 4) & 0xf; 1683 entry->heads = (conn >> 8) & 0xf; 1684 entry->connector = (conn >> 12) & 0xf; 1685 entry->bus = (conn >> 16) & 0xf; 1686 entry->location = (conn >> 20) & 0x3; 1687 entry->or = (conn >> 24) & 0xf; 1688 1689 switch (entry->type) { 1690 case DCB_OUTPUT_ANALOG: 1691 /* 1692 * Although the rest of a CRT conf dword is usually 1693 * zeros, mac biosen have stuff there so we must mask 1694 */ 1695 entry->crtconf.maxfreq = (dcb->version < 0x30) ? 1696 (conf & 0xffff) * 10 : 1697 (conf & 0xff) * 10000; 1698 break; 1699 case DCB_OUTPUT_LVDS: 1700 { 1701 uint32_t mask; 1702 if (conf & 0x1) 1703 entry->lvdsconf.use_straps_for_mode = true; 1704 if (dcb->version < 0x22) { 1705 mask = ~0xd; 1706 /* 1707 * The laptop in bug 14567 lies and claims to not use 1708 * straps when it does, so assume all DCB 2.0 laptops 1709 * use straps, until a broken EDID using one is produced 1710 */ 1711 entry->lvdsconf.use_straps_for_mode = true; 1712 /* 1713 * Both 0x4 and 0x8 show up in v2.0 tables; assume they 1714 * mean the same thing (probably wrong, but might work) 1715 */ 1716 if (conf & 0x4 || conf & 0x8) 1717 entry->lvdsconf.use_power_scripts = true; 1718 } else { 1719 mask = ~0x7; 1720 if (conf & 0x2) 1721 entry->lvdsconf.use_acpi_for_edid = true; 1722 if (conf & 0x4) 1723 entry->lvdsconf.use_power_scripts = true; 1724 entry->lvdsconf.sor.link = (conf & 0x00000030) >> 4; 1725 } 1726 if (conf & mask) { 1727 /* 1728 * Until we even try to use these on G8x, it's 1729 * useless reporting unknown bits. They all are. 1730 */ 1731 if (dcb->version >= 0x40) 1732 break; 1733 1734 NV_ERROR(drm, "Unknown LVDS configuration bits, " 1735 "please report\n"); 1736 } 1737 break; 1738 } 1739 case DCB_OUTPUT_TV: 1740 { 1741 if (dcb->version >= 0x30) 1742 entry->tvconf.has_component_output = conf & (0x8 << 4); 1743 else 1744 entry->tvconf.has_component_output = false; 1745 1746 break; 1747 } 1748 case DCB_OUTPUT_DP: 1749 entry->dpconf.sor.link = (conf & 0x00000030) >> 4; 1750 switch ((conf & 0x00e00000) >> 21) { 1751 case 0: 1752 entry->dpconf.link_bw = 162000; 1753 break; 1754 default: 1755 entry->dpconf.link_bw = 270000; 1756 break; 1757 } 1758 switch ((conf & 0x0f000000) >> 24) { 1759 case 0xf: 1760 entry->dpconf.link_nr = 4; 1761 break; 1762 case 0x3: 1763 entry->dpconf.link_nr = 2; 1764 break; 1765 default: 1766 entry->dpconf.link_nr = 1; 1767 break; 1768 } 1769 break; 1770 case DCB_OUTPUT_TMDS: 1771 if (dcb->version >= 0x40) 1772 entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4; 1773 else if (dcb->version >= 0x30) 1774 entry->tmdsconf.slave_addr = (conf & 0x00000700) >> 8; 1775 else if (dcb->version >= 0x22) 1776 entry->tmdsconf.slave_addr = (conf & 0x00000070) >> 4; 1777 1778 break; 1779 case DCB_OUTPUT_EOL: 1780 /* weird g80 mobile type that "nv" treats as a terminator */ 1781 dcb->entries--; 1782 return false; 1783 default: 1784 break; 1785 } 1786 1787 if (dcb->version < 0x40) { 1788 /* Normal entries consist of a single bit, but dual link has 1789 * the next most significant bit set too 1790 */ 1791 entry->duallink_possible = 1792 ((1 << (ffs(entry->or) - 1)) * 3 == entry->or); 1793 } else { 1794 entry->duallink_possible = (entry->sorconf.link == 3); 1795 } 1796 1797 /* unsure what DCB version introduces this, 3.0? */ 1798 if (conf & 0x100000) 1799 entry->i2c_upper_default = true; 1800 1801 return true; 1802} 1803 1804static bool 1805parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb, 1806 uint32_t conn, uint32_t conf, struct dcb_output *entry) 1807{ 1808 struct nouveau_drm *drm = nouveau_drm(dev); 1809 1810 switch (conn & 0x0000000f) { 1811 case 0: 1812 entry->type = DCB_OUTPUT_ANALOG; 1813 break; 1814 case 1: 1815 entry->type = DCB_OUTPUT_TV; 1816 break; 1817 case 2: 1818 case 4: 1819 if (conn & 0x10) 1820 entry->type = DCB_OUTPUT_LVDS; 1821 else 1822 entry->type = DCB_OUTPUT_TMDS; 1823 break; 1824 case 3: 1825 entry->type = DCB_OUTPUT_LVDS; 1826 break; 1827 default: 1828 NV_ERROR(drm, "Unknown DCB type %d\n", conn & 0x0000000f); 1829 return false; 1830 } 1831 1832 entry->i2c_index = (conn & 0x0003c000) >> 14; 1833 entry->heads = ((conn & 0x001c0000) >> 18) + 1; 1834 entry->or = entry->heads; /* same as heads, hopefully safe enough */ 1835 entry->location = (conn & 0x01e00000) >> 21; 1836 entry->bus = (conn & 0x0e000000) >> 25; 1837 entry->duallink_possible = false; 1838 1839 switch (entry->type) { 1840 case DCB_OUTPUT_ANALOG: 1841 entry->crtconf.maxfreq = (conf & 0xffff) * 10; 1842 break; 1843 case DCB_OUTPUT_TV: 1844 entry->tvconf.has_component_output = false; 1845 break; 1846 case DCB_OUTPUT_LVDS: 1847 if ((conn & 0x00003f00) >> 8 != 0x10) 1848 entry->lvdsconf.use_straps_for_mode = true; 1849 entry->lvdsconf.use_power_scripts = true; 1850 break; 1851 default: 1852 break; 1853 } 1854 1855 return true; 1856} 1857 1858static 1859void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb) 1860{ 1861 /* 1862 * DCB v2.0 lists each output combination separately. 1863 * Here we merge compatible entries to have fewer outputs, with 1864 * more options 1865 */ 1866 1867 struct nouveau_drm *drm = nouveau_drm(dev); 1868 int i, newentries = 0; 1869 1870 for (i = 0; i < dcb->entries; i++) { 1871 struct dcb_output *ient = &dcb->entry[i]; 1872 int j; 1873 1874 for (j = i + 1; j < dcb->entries; j++) { 1875 struct dcb_output *jent = &dcb->entry[j]; 1876 1877 if (jent->type == 100) /* already merged entry */ 1878 continue; 1879 1880 /* merge heads field when all other fields the same */ 1881 if (jent->i2c_index == ient->i2c_index && 1882 jent->type == ient->type && 1883 jent->location == ient->location && 1884 jent->or == ient->or) { 1885 NV_INFO(drm, "Merging DCB entries %d and %d\n", 1886 i, j); 1887 ient->heads |= jent->heads; 1888 jent->type = 100; /* dummy value */ 1889 } 1890 } 1891 } 1892 1893 /* Compact entries merged into others out of dcb */ 1894 for (i = 0; i < dcb->entries; i++) { 1895 if (dcb->entry[i].type == 100) 1896 continue; 1897 1898 if (newentries != i) { 1899 dcb->entry[newentries] = dcb->entry[i]; 1900 dcb->entry[newentries].index = newentries; 1901 } 1902 newentries++; 1903 } 1904 1905 dcb->entries = newentries; 1906} 1907 1908static bool 1909apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf) 1910{ 1911 struct nouveau_drm *drm = nouveau_drm(dev); 1912 struct dcb_table *dcb = &drm->vbios.dcb; 1913 1914 /* Dell Precision M6300 1915 * DCB entry 2: 02025312 00000010 1916 * DCB entry 3: 02026312 00000020 1917 * 1918 * Identical, except apparently a different connector on a 1919 * different SOR link. Not a clue how we're supposed to know 1920 * which one is in use if it even shares an i2c line... 1921 * 1922 * Ignore the connector on the second SOR link to prevent 1923 * nasty problems until this is sorted (assuming it's not a 1924 * VBIOS bug). 1925 */ 1926 if (nv_match_device(dev, 0x040d, 0x1028, 0x019b)) { 1927 if (*conn == 0x02026312 && *conf == 0x00000020) 1928 return false; 1929 } 1930 1931 /* GeForce3 Ti 200 1932 * 1933 * DCB reports an LVDS output that should be TMDS: 1934 * DCB entry 1: f2005014 ffffffff 1935 */ 1936 if (nv_match_device(dev, 0x0201, 0x1462, 0x8851)) { 1937 if (*conn == 0xf2005014 && *conf == 0xffffffff) { 1938 fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, 1, 1); 1939 return false; 1940 } 1941 } 1942 1943 /* XFX GT-240X-YA 1944 * 1945 * So many things wrong here, replace the entire encoder table.. 1946 */ 1947 if (nv_match_device(dev, 0x0ca3, 0x1682, 0x3003)) { 1948 if (idx == 0) { 1949 *conn = 0x02001300; /* VGA, connector 1 */ 1950 *conf = 0x00000028; 1951 } else 1952 if (idx == 1) { 1953 *conn = 0x01010312; /* DVI, connector 0 */ 1954 *conf = 0x00020030; 1955 } else 1956 if (idx == 2) { 1957 *conn = 0x01010310; /* VGA, connector 0 */ 1958 *conf = 0x00000028; 1959 } else 1960 if (idx == 3) { 1961 *conn = 0x02022362; /* HDMI, connector 2 */ 1962 *conf = 0x00020010; 1963 } else { 1964 *conn = 0x0000000e; /* EOL */ 1965 *conf = 0x00000000; 1966 } 1967 } 1968 1969 /* Some other twisted XFX board (rhbz#694914) 1970 * 1971 * The DVI/VGA encoder combo that's supposed to represent the 1972 * DVI-I connector actually point at two different ones, and 1973 * the HDMI connector ends up paired with the VGA instead. 1974 * 1975 * Connector table is missing anything for VGA at all, pointing it 1976 * an invalid conntab entry 2 so we figure it out ourself. 1977 */ 1978 if (nv_match_device(dev, 0x0615, 0x1682, 0x2605)) { 1979 if (idx == 0) { 1980 *conn = 0x02002300; /* VGA, connector 2 */ 1981 *conf = 0x00000028; 1982 } else 1983 if (idx == 1) { 1984 *conn = 0x01010312; /* DVI, connector 0 */ 1985 *conf = 0x00020030; 1986 } else 1987 if (idx == 2) { 1988 *conn = 0x04020310; /* VGA, connector 0 */ 1989 *conf = 0x00000028; 1990 } else 1991 if (idx == 3) { 1992 *conn = 0x02021322; /* HDMI, connector 1 */ 1993 *conf = 0x00020010; 1994 } else { 1995 *conn = 0x0000000e; /* EOL */ 1996 *conf = 0x00000000; 1997 } 1998 } 1999 2000 /* fdo#50830: connector indices for VGA and DVI-I are backwards */ 2001 if (nv_match_device(dev, 0x0421, 0x3842, 0xc793)) { 2002 if (idx == 0 && *conn == 0x02000300) 2003 *conn = 0x02011300; 2004 else 2005 if (idx == 1 && *conn == 0x04011310) 2006 *conn = 0x04000310; 2007 else 2008 if (idx == 2 && *conn == 0x02011312) 2009 *conn = 0x02000312; 2010 } 2011 2012 return true; 2013} 2014 2015static void 2016fabricate_dcb_encoder_table(struct drm_device *dev, struct nvbios *bios) 2017{ 2018 struct dcb_table *dcb = &bios->dcb; 2019 int all_heads = (nv_two_heads(dev) ? 3 : 1); 2020 2021#ifdef __powerpc__ 2022 /* Apple iMac G4 NV17 */ 2023 if (of_machine_is_compatible("PowerMac4,5")) { 2024 fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 0, all_heads, 1); 2025 fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG, 1, all_heads, 2); 2026 return; 2027 } 2028#endif 2029 2030 /* Make up some sane defaults */ 2031 fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG, 2032 bios->legacy.i2c_indices.crt, 1, 1); 2033 2034 if (nv04_tv_identify(dev, bios->legacy.i2c_indices.tv) >= 0) 2035 fabricate_dcb_output(dcb, DCB_OUTPUT_TV, 2036 bios->legacy.i2c_indices.tv, 2037 all_heads, 0); 2038 2039 else if (bios->tmds.output0_script_ptr || 2040 bios->tmds.output1_script_ptr) 2041 fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 2042 bios->legacy.i2c_indices.panel, 2043 all_heads, 1); 2044} 2045 2046static int 2047parse_dcb_entry(struct drm_device *dev, void *data, int idx, u8 *outp) 2048{ 2049 struct nouveau_drm *drm = nouveau_drm(dev); 2050 struct dcb_table *dcb = &drm->vbios.dcb; 2051 u32 conf = (dcb->version >= 0x20) ? ROM32(outp[4]) : ROM32(outp[6]); 2052 u32 conn = ROM32(outp[0]); 2053 bool ret; 2054 2055 if (apply_dcb_encoder_quirks(dev, idx, &conn, &conf)) { 2056 struct dcb_output *entry = new_dcb_entry(dcb); 2057 2058 NV_INFO(drm, "DCB outp %02d: %08x %08x\n", idx, conn, conf); 2059 2060 if (dcb->version >= 0x20) 2061 ret = parse_dcb20_entry(dev, dcb, conn, conf, entry); 2062 else 2063 ret = parse_dcb15_entry(dev, dcb, conn, conf, entry); 2064 if (!ret) 2065 return 1; /* stop parsing */ 2066 2067 /* Ignore the I2C index for on-chip TV-out, as there 2068 * are cards with bogus values (nv31m in bug 23212), 2069 * and it's otherwise useless. 2070 */ 2071 if (entry->type == DCB_OUTPUT_TV && 2072 entry->location == DCB_LOC_ON_CHIP) 2073 entry->i2c_index = 0x0f; 2074 } 2075 2076 return 0; 2077} 2078 2079static void 2080dcb_fake_connectors(struct nvbios *bios) 2081{ 2082 struct dcb_table *dcbt = &bios->dcb; 2083 u8 map[16] = { }; 2084 int i, idx = 0; 2085 2086 /* heuristic: if we ever get a non-zero connector field, assume 2087 * that all the indices are valid and we don't need fake them. 2088 * 2089 * and, as usual, a blacklist of boards with bad bios data.. 2090 */ 2091 if (!nv_match_device(bios->dev, 0x0392, 0x107d, 0x20a2)) { 2092 for (i = 0; i < dcbt->entries; i++) { 2093 if (dcbt->entry[i].connector) 2094 return; 2095 } 2096 } 2097 2098 /* no useful connector info available, we need to make it up 2099 * ourselves. the rule here is: anything on the same i2c bus 2100 * is considered to be on the same connector. any output 2101 * without an associated i2c bus is assigned its own unique 2102 * connector index. 2103 */ 2104 for (i = 0; i < dcbt->entries; i++) { 2105 u8 i2c = dcbt->entry[i].i2c_index; 2106 if (i2c == 0x0f) { 2107 dcbt->entry[i].connector = idx++; 2108 } else { 2109 if (!map[i2c]) 2110 map[i2c] = ++idx; 2111 dcbt->entry[i].connector = map[i2c] - 1; 2112 } 2113 } 2114 2115 /* if we created more than one connector, destroy the connector 2116 * table - just in case it has random, rather than stub, entries. 2117 */ 2118 if (i > 1) { 2119 u8 *conntab = olddcb_conntab(bios->dev); 2120 if (conntab) 2121 conntab[0] = 0x00; 2122 } 2123} 2124 2125static int 2126parse_dcb_table(struct drm_device *dev, struct nvbios *bios) 2127{ 2128 struct nouveau_drm *drm = nouveau_drm(dev); 2129 struct dcb_table *dcb = &bios->dcb; 2130 u8 *dcbt, *conn; 2131 int idx; 2132 2133 dcbt = olddcb_table(dev); 2134 if (!dcbt) { 2135 /* handle pre-DCB boards */ 2136 if (bios->type == NVBIOS_BMP) { 2137 fabricate_dcb_encoder_table(dev, bios); 2138 return 0; 2139 } 2140 2141 return -EINVAL; 2142 } 2143 2144 NV_INFO(drm, "DCB version %d.%d\n", dcbt[0] >> 4, dcbt[0] & 0xf); 2145 2146 dcb->version = dcbt[0]; 2147 olddcb_outp_foreach(dev, NULL, parse_dcb_entry); 2148 2149 /* 2150 * apart for v2.1+ not being known for requiring merging, this 2151 * guarantees dcbent->index is the index of the entry in the rom image 2152 */ 2153 if (dcb->version < 0x21) 2154 merge_like_dcb_entries(dev, dcb); 2155 2156 if (!dcb->entries) 2157 return -ENXIO; 2158 2159 /* dump connector table entries to log, if any exist */ 2160 idx = -1; 2161 while ((conn = olddcb_conn(dev, ++idx))) { 2162 if (conn[0] != 0xff) { 2163 NV_INFO(drm, "DCB conn %02d: ", idx); 2164 if (olddcb_conntab(dev)[3] < 4) 2165 printk("%04x\n", ROM16(conn[0])); 2166 else 2167 printk("%08x\n", ROM32(conn[0])); 2168 } 2169 } 2170 dcb_fake_connectors(bios); 2171 return 0; 2172} 2173 2174static int load_nv17_hwsq_ucode_entry(struct drm_device *dev, struct nvbios *bios, uint16_t hwsq_offset, int entry) 2175{ 2176 /* 2177 * The header following the "HWSQ" signature has the number of entries, 2178 * and the entry size 2179 * 2180 * An entry consists of a dword to write to the sequencer control reg 2181 * (0x00001304), followed by the ucode bytes, written sequentially, 2182 * starting at reg 0x00001400 2183 */ 2184 2185 struct nouveau_drm *drm = nouveau_drm(dev); 2186 struct nouveau_device *device = nv_device(drm->device); 2187 uint8_t bytes_to_write; 2188 uint16_t hwsq_entry_offset; 2189 int i; 2190 2191 if (bios->data[hwsq_offset] <= entry) { 2192 NV_ERROR(drm, "Too few entries in HW sequencer table for " 2193 "requested entry\n"); 2194 return -ENOENT; 2195 } 2196 2197 bytes_to_write = bios->data[hwsq_offset + 1]; 2198 2199 if (bytes_to_write != 36) { 2200 NV_ERROR(drm, "Unknown HW sequencer entry size\n"); 2201 return -EINVAL; 2202 } 2203 2204 NV_INFO(drm, "Loading NV17 power sequencing microcode\n"); 2205 2206 hwsq_entry_offset = hwsq_offset + 2 + entry * bytes_to_write; 2207 2208 /* set sequencer control */ 2209 nv_wr32(device, 0x00001304, ROM32(bios->data[hwsq_entry_offset])); 2210 bytes_to_write -= 4; 2211 2212 /* write ucode */ 2213 for (i = 0; i < bytes_to_write; i += 4) 2214 nv_wr32(device, 0x00001400 + i, ROM32(bios->data[hwsq_entry_offset + i + 4])); 2215 2216 /* twiddle NV_PBUS_DEBUG_4 */ 2217 nv_wr32(device, NV_PBUS_DEBUG_4, nv_rd32(device, NV_PBUS_DEBUG_4) | 0x18); 2218 2219 return 0; 2220} 2221 2222static int load_nv17_hw_sequencer_ucode(struct drm_device *dev, 2223 struct nvbios *bios) 2224{ 2225 /* 2226 * BMP based cards, from NV17, need a microcode loading to correctly 2227 * control the GPIO etc for LVDS panels 2228 * 2229 * BIT based cards seem to do this directly in the init scripts 2230 * 2231 * The microcode entries are found by the "HWSQ" signature. 2232 */ 2233 2234 const uint8_t hwsq_signature[] = { 'H', 'W', 'S', 'Q' }; 2235 const int sz = sizeof(hwsq_signature); 2236 int hwsq_offset; 2237 2238 hwsq_offset = findstr(bios->data, bios->length, hwsq_signature, sz); 2239 if (!hwsq_offset) 2240 return 0; 2241 2242 /* always use entry 0? */ 2243 return load_nv17_hwsq_ucode_entry(dev, bios, hwsq_offset + sz, 0); 2244} 2245 2246uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev) 2247{ 2248 struct nouveau_drm *drm = nouveau_drm(dev); 2249 struct nvbios *bios = &drm->vbios; 2250 const uint8_t edid_sig[] = { 2251 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 }; 2252 uint16_t offset = 0; 2253 uint16_t newoffset; 2254 int searchlen = NV_PROM_SIZE; 2255 2256 if (bios->fp.edid) 2257 return bios->fp.edid; 2258 2259 while (searchlen) { 2260 newoffset = findstr(&bios->data[offset], searchlen, 2261 edid_sig, 8); 2262 if (!newoffset) 2263 return NULL; 2264 offset += newoffset; 2265 if (!nv_cksum(&bios->data[offset], EDID1_LEN)) 2266 break; 2267 2268 searchlen -= offset; 2269 offset++; 2270 } 2271 2272 NV_INFO(drm, "Found EDID in BIOS\n"); 2273 2274 return bios->fp.edid = &bios->data[offset]; 2275} 2276 2277static bool NVInitVBIOS(struct drm_device *dev) 2278{ 2279 struct nouveau_drm *drm = nouveau_drm(dev); 2280 struct nvbios *bios = &drm->vbios; 2281 2282 memset(bios, 0, sizeof(struct nvbios)); 2283 spin_lock_init(&bios->lock); 2284 bios->dev = dev; 2285 2286 bios->data = nouveau_bios(drm->device)->data; 2287 bios->length = nouveau_bios(drm->device)->size; 2288 return true; 2289} 2290 2291static int nouveau_parse_vbios_struct(struct drm_device *dev) 2292{ 2293 struct nouveau_drm *drm = nouveau_drm(dev); 2294 struct nvbios *bios = &drm->vbios; 2295 const uint8_t bit_signature[] = { 0xff, 0xb8, 'B', 'I', 'T' }; 2296 const uint8_t bmp_signature[] = { 0xff, 0x7f, 'N', 'V', 0x0 }; 2297 int offset; 2298 2299 offset = findstr(bios->data, bios->length, 2300 bit_signature, sizeof(bit_signature)); 2301 if (offset) { 2302 NV_INFO(drm, "BIT BIOS found\n"); 2303 bios->type = NVBIOS_BIT; 2304 bios->offset = offset; 2305 return parse_bit_structure(bios, offset + 6); 2306 } 2307 2308 offset = findstr(bios->data, bios->length, 2309 bmp_signature, sizeof(bmp_signature)); 2310 if (offset) { 2311 NV_INFO(drm, "BMP BIOS found\n"); 2312 bios->type = NVBIOS_BMP; 2313 bios->offset = offset; 2314 return parse_bmp_structure(dev, bios, offset); 2315 } 2316 2317 NV_ERROR(drm, "No known BIOS signature found\n"); 2318 return -ENODEV; 2319} 2320 2321int 2322nouveau_run_vbios_init(struct drm_device *dev) 2323{ 2324 struct nouveau_drm *drm = nouveau_drm(dev); 2325 struct nvbios *bios = &drm->vbios; 2326 int i, ret = 0; 2327 2328 /* Reset the BIOS head to 0. */ 2329 bios->state.crtchead = 0; 2330 2331 if (bios->major_version < 5) /* BMP only */ 2332 load_nv17_hw_sequencer_ucode(dev, bios); 2333 2334 if (bios->execute) { 2335 bios->fp.last_script_invoc = 0; 2336 bios->fp.lvds_init_run = false; 2337 } 2338 2339 if (nv_device(drm->device)->card_type >= NV_50) { 2340 for (i = 0; bios->execute && i < bios->dcb.entries; i++) { 2341 nouveau_bios_run_display_table(dev, 0, 0, 2342 &bios->dcb.entry[i], -1); 2343 } 2344 } 2345 2346 return ret; 2347} 2348 2349static bool 2350nouveau_bios_posted(struct drm_device *dev) 2351{ 2352 struct nouveau_drm *drm = nouveau_drm(dev); 2353 unsigned htotal; 2354 2355 if (nv_device(drm->device)->card_type >= NV_50) { 2356 if (NVReadVgaCrtc(dev, 0, 0x00) == 0 && 2357 NVReadVgaCrtc(dev, 0, 0x1a) == 0) 2358 return false; 2359 return true; 2360 } 2361 2362 htotal = NVReadVgaCrtc(dev, 0, 0x06); 2363 htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x01) << 8; 2364 htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x20) << 4; 2365 htotal |= (NVReadVgaCrtc(dev, 0, 0x25) & 0x01) << 10; 2366 htotal |= (NVReadVgaCrtc(dev, 0, 0x41) & 0x01) << 11; 2367 2368 return (htotal != 0); 2369} 2370 2371int 2372nouveau_bios_init(struct drm_device *dev) 2373{ 2374 struct nouveau_drm *drm = nouveau_drm(dev); 2375 struct nvbios *bios = &drm->vbios; 2376 int ret; 2377 2378 if (!NVInitVBIOS(dev)) 2379 return -ENODEV; 2380 2381 ret = nouveau_parse_vbios_struct(dev); 2382 if (ret) 2383 return ret; 2384 2385 ret = parse_dcb_table(dev, bios); 2386 if (ret) 2387 return ret; 2388 2389 if (!bios->major_version) /* we don't run version 0 bios */ 2390 return 0; 2391 2392 /* init script execution disabled */ 2393 bios->execute = false; 2394 2395 /* ... unless card isn't POSTed already */ 2396 if (!nouveau_bios_posted(dev)) { 2397 NV_INFO(drm, "Adaptor not initialised, " 2398 "running VBIOS init tables.\n"); 2399 bios->execute = true; 2400 } 2401 2402 ret = nouveau_run_vbios_init(dev); 2403 if (ret) 2404 return ret; 2405 2406 /* feature_byte on BMP is poor, but init always sets CR4B */ 2407 if (bios->major_version < 5) 2408 bios->is_mobile = NVReadVgaCrtc(dev, 0, NV_CIO_CRE_4B) & 0x40; 2409 2410 /* all BIT systems need p_f_m_t for digital_min_front_porch */ 2411 if (bios->is_mobile || bios->major_version >= 5) 2412 ret = parse_fp_mode_table(dev, bios); 2413 2414 /* allow subsequent scripts to execute */ 2415 bios->execute = true; 2416 2417 return 0; 2418} 2419 2420void 2421nouveau_bios_takedown(struct drm_device *dev) 2422{ 2423} 2424