nouveau_bios.c revision 9855e584d296a32bbcc1bb3d29b7e0ed078b03cc
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 "drmP.h" 26#define NV_DEBUG_NOTRACE 27#include "nouveau_drv.h" 28#include "nouveau_hw.h" 29 30/* these defines are made up */ 31#define NV_CIO_CRE_44_HEADA 0x0 32#define NV_CIO_CRE_44_HEADB 0x3 33#define FEATURE_MOBILE 0x10 /* also FEATURE_QUADRO for BMP */ 34#define LEGACY_I2C_CRT 0x80 35#define LEGACY_I2C_PANEL 0x81 36#define LEGACY_I2C_TV 0x82 37 38#define EDID1_LEN 128 39 40#define BIOSLOG(sip, fmt, arg...) NV_DEBUG(sip->dev, fmt, ##arg) 41#define LOG_OLD_VALUE(x) 42 43#define ROM16(x) le16_to_cpu(*(uint16_t *)&(x)) 44#define ROM32(x) le32_to_cpu(*(uint32_t *)&(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 int 70score_vbios(struct drm_device *dev, const uint8_t *data, const bool writeable) 71{ 72 if (!(data[0] == 0x55 && data[1] == 0xAA)) { 73 NV_TRACEWARN(dev, "... BIOS signature not found\n"); 74 return 0; 75 } 76 77 if (nv_cksum(data, data[2] * 512)) { 78 NV_TRACEWARN(dev, "... BIOS checksum invalid\n"); 79 /* if a ro image is somewhat bad, it's probably all rubbish */ 80 return writeable ? 2 : 1; 81 } else 82 NV_TRACE(dev, "... appears to be valid\n"); 83 84 return 3; 85} 86 87static void load_vbios_prom(struct drm_device *dev, uint8_t *data) 88{ 89 struct drm_nouveau_private *dev_priv = dev->dev_private; 90 uint32_t pci_nv_20, save_pci_nv_20; 91 int pcir_ptr; 92 int i; 93 94 if (dev_priv->card_type >= NV_50) 95 pci_nv_20 = 0x88050; 96 else 97 pci_nv_20 = NV_PBUS_PCI_NV_20; 98 99 /* enable ROM access */ 100 save_pci_nv_20 = nvReadMC(dev, pci_nv_20); 101 nvWriteMC(dev, pci_nv_20, 102 save_pci_nv_20 & ~NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED); 103 104 /* bail if no rom signature */ 105 if (nv_rd08(dev, NV_PROM_OFFSET) != 0x55 || 106 nv_rd08(dev, NV_PROM_OFFSET + 1) != 0xaa) 107 goto out; 108 109 /* additional check (see note below) - read PCI record header */ 110 pcir_ptr = nv_rd08(dev, NV_PROM_OFFSET + 0x18) | 111 nv_rd08(dev, NV_PROM_OFFSET + 0x19) << 8; 112 if (nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr) != 'P' || 113 nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 1) != 'C' || 114 nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 2) != 'I' || 115 nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 3) != 'R') 116 goto out; 117 118 /* on some 6600GT/6800LE prom reads are messed up. nvclock alleges a 119 * a good read may be obtained by waiting or re-reading (cargocult: 5x) 120 * each byte. we'll hope pramin has something usable instead 121 */ 122 for (i = 0; i < NV_PROM_SIZE; i++) 123 data[i] = nv_rd08(dev, NV_PROM_OFFSET + i); 124 125out: 126 /* disable ROM access */ 127 nvWriteMC(dev, pci_nv_20, 128 save_pci_nv_20 | NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED); 129} 130 131static void load_vbios_pramin(struct drm_device *dev, uint8_t *data) 132{ 133 struct drm_nouveau_private *dev_priv = dev->dev_private; 134 uint32_t old_bar0_pramin = 0; 135 int i; 136 137 if (dev_priv->card_type >= NV_50) { 138 uint32_t vbios_vram = (nv_rd32(dev, 0x619f04) & ~0xff) << 8; 139 140 if (!vbios_vram) 141 vbios_vram = (nv_rd32(dev, 0x1700) << 16) + 0xf0000; 142 143 old_bar0_pramin = nv_rd32(dev, 0x1700); 144 nv_wr32(dev, 0x1700, vbios_vram >> 16); 145 } 146 147 /* bail if no rom signature */ 148 if (nv_rd08(dev, NV_PRAMIN_OFFSET) != 0x55 || 149 nv_rd08(dev, NV_PRAMIN_OFFSET + 1) != 0xaa) 150 goto out; 151 152 for (i = 0; i < NV_PROM_SIZE; i++) 153 data[i] = nv_rd08(dev, NV_PRAMIN_OFFSET + i); 154 155out: 156 if (dev_priv->card_type >= NV_50) 157 nv_wr32(dev, 0x1700, old_bar0_pramin); 158} 159 160static void load_vbios_pci(struct drm_device *dev, uint8_t *data) 161{ 162 void __iomem *rom = NULL; 163 size_t rom_len; 164 int ret; 165 166 ret = pci_enable_rom(dev->pdev); 167 if (ret) 168 return; 169 170 rom = pci_map_rom(dev->pdev, &rom_len); 171 if (!rom) 172 goto out; 173 memcpy_fromio(data, rom, rom_len); 174 pci_unmap_rom(dev->pdev, rom); 175 176out: 177 pci_disable_rom(dev->pdev); 178} 179 180struct methods { 181 const char desc[8]; 182 void (*loadbios)(struct drm_device *, uint8_t *); 183 const bool rw; 184}; 185 186static struct methods nv04_methods[] = { 187 { "PROM", load_vbios_prom, false }, 188 { "PRAMIN", load_vbios_pramin, true }, 189 { "PCIROM", load_vbios_pci, true }, 190}; 191 192static struct methods nv50_methods[] = { 193 { "PRAMIN", load_vbios_pramin, true }, 194 { "PROM", load_vbios_prom, false }, 195 { "PCIROM", load_vbios_pci, true }, 196}; 197 198#define METHODCNT 3 199 200static bool NVShadowVBIOS(struct drm_device *dev, uint8_t *data) 201{ 202 struct drm_nouveau_private *dev_priv = dev->dev_private; 203 struct methods *methods; 204 int i; 205 int testscore = 3; 206 int scores[METHODCNT]; 207 208 if (nouveau_vbios) { 209 methods = nv04_methods; 210 for (i = 0; i < METHODCNT; i++) 211 if (!strcasecmp(nouveau_vbios, methods[i].desc)) 212 break; 213 214 if (i < METHODCNT) { 215 NV_INFO(dev, "Attempting to use BIOS image from %s\n", 216 methods[i].desc); 217 218 methods[i].loadbios(dev, data); 219 if (score_vbios(dev, data, methods[i].rw)) 220 return true; 221 } 222 223 NV_ERROR(dev, "VBIOS source \'%s\' invalid\n", nouveau_vbios); 224 } 225 226 if (dev_priv->card_type < NV_50) 227 methods = nv04_methods; 228 else 229 methods = nv50_methods; 230 231 for (i = 0; i < METHODCNT; i++) { 232 NV_TRACE(dev, "Attempting to load BIOS image from %s\n", 233 methods[i].desc); 234 data[0] = data[1] = 0; /* avoid reuse of previous image */ 235 methods[i].loadbios(dev, data); 236 scores[i] = score_vbios(dev, data, methods[i].rw); 237 if (scores[i] == testscore) 238 return true; 239 } 240 241 while (--testscore > 0) { 242 for (i = 0; i < METHODCNT; i++) { 243 if (scores[i] == testscore) { 244 NV_TRACE(dev, "Using BIOS image from %s\n", 245 methods[i].desc); 246 methods[i].loadbios(dev, data); 247 return true; 248 } 249 } 250 } 251 252 NV_ERROR(dev, "No valid BIOS image found\n"); 253 return false; 254} 255 256struct init_tbl_entry { 257 char *name; 258 uint8_t id; 259 int (*handler)(struct nvbios *, uint16_t, struct init_exec *); 260}; 261 262struct bit_entry { 263 uint8_t id[2]; 264 uint16_t length; 265 uint16_t offset; 266}; 267 268static int parse_init_table(struct nvbios *, unsigned int, struct init_exec *); 269 270#define MACRO_INDEX_SIZE 2 271#define MACRO_SIZE 8 272#define CONDITION_SIZE 12 273#define IO_FLAG_CONDITION_SIZE 9 274#define IO_CONDITION_SIZE 5 275#define MEM_INIT_SIZE 66 276 277static void still_alive(void) 278{ 279#if 0 280 sync(); 281 msleep(2); 282#endif 283} 284 285static uint32_t 286munge_reg(struct nvbios *bios, uint32_t reg) 287{ 288 struct drm_nouveau_private *dev_priv = bios->dev->dev_private; 289 struct dcb_entry *dcbent = bios->display.output; 290 291 if (dev_priv->card_type < NV_50) 292 return reg; 293 294 if (reg & 0x40000000) { 295 BUG_ON(!dcbent); 296 297 reg += (ffs(dcbent->or) - 1) * 0x800; 298 if ((reg & 0x20000000) && !(dcbent->sorconf.link & 1)) 299 reg += 0x00000080; 300 } 301 302 reg &= ~0x60000000; 303 return reg; 304} 305 306static int 307valid_reg(struct nvbios *bios, uint32_t reg) 308{ 309 struct drm_nouveau_private *dev_priv = bios->dev->dev_private; 310 struct drm_device *dev = bios->dev; 311 312 /* C51 has misaligned regs on purpose. Marvellous */ 313 if (reg & 0x2 || 314 (reg & 0x1 && dev_priv->VBIOS.pub.chip_version != 0x51)) 315 NV_ERROR(dev, "======= misaligned reg 0x%08X =======\n", reg); 316 317 /* warn on C51 regs that haven't been verified accessible in tracing */ 318 if (reg & 0x1 && dev_priv->VBIOS.pub.chip_version == 0x51 && 319 reg != 0x130d && reg != 0x1311 && reg != 0x60081d) 320 NV_WARN(dev, "=== C51 misaligned reg 0x%08X not verified ===\n", 321 reg); 322 323 if (reg >= (8*1024*1024)) { 324 NV_ERROR(dev, "=== reg 0x%08x out of mapped bounds ===\n", reg); 325 return 0; 326 } 327 328 return 1; 329} 330 331static bool 332valid_idx_port(struct nvbios *bios, uint16_t port) 333{ 334 struct drm_nouveau_private *dev_priv = bios->dev->dev_private; 335 struct drm_device *dev = bios->dev; 336 337 /* 338 * If adding more ports here, the read/write functions below will need 339 * updating so that the correct mmio range (PRMCIO, PRMDIO, PRMVIO) is 340 * used for the port in question 341 */ 342 if (dev_priv->card_type < NV_50) { 343 if (port == NV_CIO_CRX__COLOR) 344 return true; 345 if (port == NV_VIO_SRX) 346 return true; 347 } else { 348 if (port == NV_CIO_CRX__COLOR) 349 return true; 350 } 351 352 NV_ERROR(dev, "========== unknown indexed io port 0x%04X ==========\n", 353 port); 354 355 return false; 356} 357 358static bool 359valid_port(struct nvbios *bios, uint16_t port) 360{ 361 struct drm_device *dev = bios->dev; 362 363 /* 364 * If adding more ports here, the read/write functions below will need 365 * updating so that the correct mmio range (PRMCIO, PRMDIO, PRMVIO) is 366 * used for the port in question 367 */ 368 if (port == NV_VIO_VSE2) 369 return true; 370 371 NV_ERROR(dev, "========== unknown io port 0x%04X ==========\n", port); 372 373 return false; 374} 375 376static uint32_t 377bios_rd32(struct nvbios *bios, uint32_t reg) 378{ 379 uint32_t data; 380 381 reg = munge_reg(bios, reg); 382 if (!valid_reg(bios, reg)) 383 return 0; 384 385 /* 386 * C51 sometimes uses regs with bit0 set in the address. For these 387 * cases there should exist a translation in a BIOS table to an IO 388 * port address which the BIOS uses for accessing the reg 389 * 390 * These only seem to appear for the power control regs to a flat panel, 391 * and the GPIO regs at 0x60081*. In C51 mmio traces the normal regs 392 * for 0x1308 and 0x1310 are used - hence the mask below. An S3 393 * suspend-resume mmio trace from a C51 will be required to see if this 394 * is true for the power microcode in 0x14.., or whether the direct IO 395 * port access method is needed 396 */ 397 if (reg & 0x1) 398 reg &= ~0x1; 399 400 data = nv_rd32(bios->dev, reg); 401 402 BIOSLOG(bios, " Read: Reg: 0x%08X, Data: 0x%08X\n", reg, data); 403 404 return data; 405} 406 407static void 408bios_wr32(struct nvbios *bios, uint32_t reg, uint32_t data) 409{ 410 struct drm_nouveau_private *dev_priv = bios->dev->dev_private; 411 412 reg = munge_reg(bios, reg); 413 if (!valid_reg(bios, reg)) 414 return; 415 416 /* see note in bios_rd32 */ 417 if (reg & 0x1) 418 reg &= 0xfffffffe; 419 420 LOG_OLD_VALUE(bios_rd32(bios, reg)); 421 BIOSLOG(bios, " Write: Reg: 0x%08X, Data: 0x%08X\n", reg, data); 422 423 if (dev_priv->VBIOS.execute) { 424 still_alive(); 425 nv_wr32(bios->dev, reg, data); 426 } 427} 428 429static uint8_t 430bios_idxprt_rd(struct nvbios *bios, uint16_t port, uint8_t index) 431{ 432 struct drm_nouveau_private *dev_priv = bios->dev->dev_private; 433 struct drm_device *dev = bios->dev; 434 uint8_t data; 435 436 if (!valid_idx_port(bios, port)) 437 return 0; 438 439 if (dev_priv->card_type < NV_50) { 440 if (port == NV_VIO_SRX) 441 data = NVReadVgaSeq(dev, bios->state.crtchead, index); 442 else /* assume NV_CIO_CRX__COLOR */ 443 data = NVReadVgaCrtc(dev, bios->state.crtchead, index); 444 } else { 445 uint32_t data32; 446 447 data32 = bios_rd32(bios, NV50_PDISPLAY_VGACRTC(index & ~3)); 448 data = (data32 >> ((index & 3) << 3)) & 0xff; 449 } 450 451 BIOSLOG(bios, " Indexed IO read: Port: 0x%04X, Index: 0x%02X, " 452 "Head: 0x%02X, Data: 0x%02X\n", 453 port, index, bios->state.crtchead, data); 454 return data; 455} 456 457static void 458bios_idxprt_wr(struct nvbios *bios, uint16_t port, uint8_t index, uint8_t data) 459{ 460 struct drm_nouveau_private *dev_priv = bios->dev->dev_private; 461 struct drm_device *dev = bios->dev; 462 463 if (!valid_idx_port(bios, port)) 464 return; 465 466 /* 467 * The current head is maintained in the nvbios member state.crtchead. 468 * We trap changes to CR44 and update the head variable and hence the 469 * register set written. 470 * As CR44 only exists on CRTC0, we update crtchead to head0 in advance 471 * of the write, and to head1 after the write 472 */ 473 if (port == NV_CIO_CRX__COLOR && index == NV_CIO_CRE_44 && 474 data != NV_CIO_CRE_44_HEADB) 475 bios->state.crtchead = 0; 476 477 LOG_OLD_VALUE(bios_idxprt_rd(bios, port, index)); 478 BIOSLOG(bios, " Indexed IO write: Port: 0x%04X, Index: 0x%02X, " 479 "Head: 0x%02X, Data: 0x%02X\n", 480 port, index, bios->state.crtchead, data); 481 482 if (bios->execute && dev_priv->card_type < NV_50) { 483 still_alive(); 484 if (port == NV_VIO_SRX) 485 NVWriteVgaSeq(dev, bios->state.crtchead, index, data); 486 else /* assume NV_CIO_CRX__COLOR */ 487 NVWriteVgaCrtc(dev, bios->state.crtchead, index, data); 488 } else 489 if (bios->execute) { 490 uint32_t data32, shift = (index & 3) << 3; 491 492 still_alive(); 493 494 data32 = bios_rd32(bios, NV50_PDISPLAY_VGACRTC(index & ~3)); 495 data32 &= ~(0xff << shift); 496 data32 |= (data << shift); 497 bios_wr32(bios, NV50_PDISPLAY_VGACRTC(index & ~3), data32); 498 } 499 500 if (port == NV_CIO_CRX__COLOR && 501 index == NV_CIO_CRE_44 && data == NV_CIO_CRE_44_HEADB) 502 bios->state.crtchead = 1; 503} 504 505static uint8_t 506bios_port_rd(struct nvbios *bios, uint16_t port) 507{ 508 uint8_t data, head = bios->state.crtchead; 509 510 if (!valid_port(bios, port)) 511 return 0; 512 513 data = NVReadPRMVIO(bios->dev, head, NV_PRMVIO0_OFFSET + port); 514 515 BIOSLOG(bios, " IO read: Port: 0x%04X, Head: 0x%02X, Data: 0x%02X\n", 516 port, head, data); 517 518 return data; 519} 520 521static void 522bios_port_wr(struct nvbios *bios, uint16_t port, uint8_t data) 523{ 524 int head = bios->state.crtchead; 525 526 if (!valid_port(bios, port)) 527 return; 528 529 LOG_OLD_VALUE(bios_port_rd(bios, port)); 530 BIOSLOG(bios, " IO write: Port: 0x%04X, Head: 0x%02X, Data: 0x%02X\n", 531 port, head, data); 532 533 if (!bios->execute) 534 return; 535 536 still_alive(); 537 NVWritePRMVIO(bios->dev, head, NV_PRMVIO0_OFFSET + port, data); 538} 539 540static bool 541io_flag_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond) 542{ 543 /* 544 * The IO flag condition entry has 2 bytes for the CRTC port; 1 byte 545 * for the CRTC index; 1 byte for the mask to apply to the value 546 * retrieved from the CRTC; 1 byte for the shift right to apply to the 547 * masked CRTC value; 2 bytes for the offset to the flag array, to 548 * which the shifted value is added; 1 byte for the mask applied to the 549 * value read from the flag array; and 1 byte for the value to compare 550 * against the masked byte from the flag table. 551 */ 552 553 uint16_t condptr = bios->io_flag_condition_tbl_ptr + cond * IO_FLAG_CONDITION_SIZE; 554 uint16_t crtcport = ROM16(bios->data[condptr]); 555 uint8_t crtcindex = bios->data[condptr + 2]; 556 uint8_t mask = bios->data[condptr + 3]; 557 uint8_t shift = bios->data[condptr + 4]; 558 uint16_t flagarray = ROM16(bios->data[condptr + 5]); 559 uint8_t flagarraymask = bios->data[condptr + 7]; 560 uint8_t cmpval = bios->data[condptr + 8]; 561 uint8_t data; 562 563 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, " 564 "Shift: 0x%02X, FlagArray: 0x%04X, FAMask: 0x%02X, " 565 "Cmpval: 0x%02X\n", 566 offset, crtcport, crtcindex, mask, shift, flagarray, flagarraymask, cmpval); 567 568 data = bios_idxprt_rd(bios, crtcport, crtcindex); 569 570 data = bios->data[flagarray + ((data & mask) >> shift)]; 571 data &= flagarraymask; 572 573 BIOSLOG(bios, "0x%04X: Checking if 0x%02X equals 0x%02X\n", 574 offset, data, cmpval); 575 576 return (data == cmpval); 577} 578 579static bool 580bios_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond) 581{ 582 /* 583 * The condition table entry has 4 bytes for the address of the 584 * register to check, 4 bytes for a mask to apply to the register and 585 * 4 for a test comparison value 586 */ 587 588 uint16_t condptr = bios->condition_tbl_ptr + cond * CONDITION_SIZE; 589 uint32_t reg = ROM32(bios->data[condptr]); 590 uint32_t mask = ROM32(bios->data[condptr + 4]); 591 uint32_t cmpval = ROM32(bios->data[condptr + 8]); 592 uint32_t data; 593 594 BIOSLOG(bios, "0x%04X: Cond: 0x%02X, Reg: 0x%08X, Mask: 0x%08X\n", 595 offset, cond, reg, mask); 596 597 data = bios_rd32(bios, reg) & mask; 598 599 BIOSLOG(bios, "0x%04X: Checking if 0x%08X equals 0x%08X\n", 600 offset, data, cmpval); 601 602 return (data == cmpval); 603} 604 605static bool 606io_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond) 607{ 608 /* 609 * The IO condition entry has 2 bytes for the IO port address; 1 byte 610 * for the index to write to io_port; 1 byte for the mask to apply to 611 * the byte read from io_port+1; and 1 byte for the value to compare 612 * against the masked byte. 613 */ 614 615 uint16_t condptr = bios->io_condition_tbl_ptr + cond * IO_CONDITION_SIZE; 616 uint16_t io_port = ROM16(bios->data[condptr]); 617 uint8_t port_index = bios->data[condptr + 2]; 618 uint8_t mask = bios->data[condptr + 3]; 619 uint8_t cmpval = bios->data[condptr + 4]; 620 621 uint8_t data = bios_idxprt_rd(bios, io_port, port_index) & mask; 622 623 BIOSLOG(bios, "0x%04X: Checking if 0x%02X equals 0x%02X\n", 624 offset, data, cmpval); 625 626 return (data == cmpval); 627} 628 629static int 630nv50_pll_set(struct drm_device *dev, uint32_t reg, uint32_t clk) 631{ 632 struct drm_nouveau_private *dev_priv = dev->dev_private; 633 uint32_t reg0 = nv_rd32(dev, reg + 0); 634 uint32_t reg1 = nv_rd32(dev, reg + 4); 635 struct nouveau_pll_vals pll; 636 struct pll_lims pll_limits; 637 int ret; 638 639 ret = get_pll_limits(dev, reg, &pll_limits); 640 if (ret) 641 return ret; 642 643 clk = nouveau_calc_pll_mnp(dev, &pll_limits, clk, &pll); 644 if (!clk) 645 return -ERANGE; 646 647 reg0 = (reg0 & 0xfff8ffff) | (pll.log2P << 16); 648 reg1 = (reg1 & 0xffff0000) | (pll.N1 << 8) | pll.M1; 649 650 if (dev_priv->VBIOS.execute) { 651 still_alive(); 652 nv_wr32(dev, reg + 4, reg1); 653 nv_wr32(dev, reg + 0, reg0); 654 } 655 656 return 0; 657} 658 659static int 660setPLL(struct nvbios *bios, uint32_t reg, uint32_t clk) 661{ 662 struct drm_device *dev = bios->dev; 663 struct drm_nouveau_private *dev_priv = dev->dev_private; 664 /* clk in kHz */ 665 struct pll_lims pll_lim; 666 struct nouveau_pll_vals pllvals; 667 int ret; 668 669 if (dev_priv->card_type >= NV_50) 670 return nv50_pll_set(dev, reg, clk); 671 672 /* high regs (such as in the mac g5 table) are not -= 4 */ 673 ret = get_pll_limits(dev, reg > 0x405c ? reg : reg - 4, &pll_lim); 674 if (ret) 675 return ret; 676 677 clk = nouveau_calc_pll_mnp(dev, &pll_lim, clk, &pllvals); 678 if (!clk) 679 return -ERANGE; 680 681 if (bios->execute) { 682 still_alive(); 683 nouveau_hw_setpll(dev, reg, &pllvals); 684 } 685 686 return 0; 687} 688 689static int dcb_entry_idx_from_crtchead(struct drm_device *dev) 690{ 691 struct drm_nouveau_private *dev_priv = dev->dev_private; 692 struct nvbios *bios = &dev_priv->VBIOS; 693 694 /* 695 * For the results of this function to be correct, CR44 must have been 696 * set (using bios_idxprt_wr to set crtchead), CR58 set for CR57 = 0, 697 * and the DCB table parsed, before the script calling the function is 698 * run. run_digital_op_script is example of how to do such setup 699 */ 700 701 uint8_t dcb_entry = NVReadVgaCrtc5758(dev, bios->state.crtchead, 0); 702 703 if (dcb_entry > bios->bdcb.dcb.entries) { 704 NV_ERROR(dev, "CR58 doesn't have a valid DCB entry currently " 705 "(%02X)\n", dcb_entry); 706 dcb_entry = 0x7f; /* unused / invalid marker */ 707 } 708 709 return dcb_entry; 710} 711 712static struct nouveau_i2c_chan * 713init_i2c_device_find(struct drm_device *dev, int i2c_index) 714{ 715 struct drm_nouveau_private *dev_priv = dev->dev_private; 716 struct bios_parsed_dcb *bdcb = &dev_priv->VBIOS.bdcb; 717 718 if (i2c_index == 0xff) { 719 /* note: dcb_entry_idx_from_crtchead needs pre-script set-up */ 720 int idx = dcb_entry_idx_from_crtchead(dev), shift = 0; 721 int default_indices = bdcb->i2c_default_indices; 722 723 if (idx != 0x7f && bdcb->dcb.entry[idx].i2c_upper_default) 724 shift = 4; 725 726 i2c_index = (default_indices >> shift) & 0xf; 727 } 728 if (i2c_index == 0x80) /* g80+ */ 729 i2c_index = bdcb->i2c_default_indices & 0xf; 730 731 return nouveau_i2c_find(dev, i2c_index); 732} 733 734static uint32_t get_tmds_index_reg(struct drm_device *dev, uint8_t mlv) 735{ 736 /* 737 * For mlv < 0x80, it is an index into a table of TMDS base addresses. 738 * For mlv == 0x80 use the "or" value of the dcb_entry indexed by 739 * CR58 for CR57 = 0 to index a table of offsets to the basic 740 * 0x6808b0 address. 741 * For mlv == 0x81 use the "or" value of the dcb_entry indexed by 742 * CR58 for CR57 = 0 to index a table of offsets to the basic 743 * 0x6808b0 address, and then flip the offset by 8. 744 */ 745 746 struct drm_nouveau_private *dev_priv = dev->dev_private; 747 const int pramdac_offset[13] = { 748 0, 0, 0x8, 0, 0x2000, 0, 0, 0, 0x2008, 0, 0, 0, 0x2000 }; 749 const uint32_t pramdac_table[4] = { 750 0x6808b0, 0x6808b8, 0x6828b0, 0x6828b8 }; 751 752 if (mlv >= 0x80) { 753 int dcb_entry, dacoffset; 754 755 /* note: dcb_entry_idx_from_crtchead needs pre-script set-up */ 756 dcb_entry = dcb_entry_idx_from_crtchead(dev); 757 if (dcb_entry == 0x7f) 758 return 0; 759 dacoffset = pramdac_offset[ 760 dev_priv->VBIOS.bdcb.dcb.entry[dcb_entry].or]; 761 if (mlv == 0x81) 762 dacoffset ^= 8; 763 return 0x6808b0 + dacoffset; 764 } else { 765 if (mlv > ARRAY_SIZE(pramdac_table)) { 766 NV_ERROR(dev, "Magic Lookup Value too big (%02X)\n", 767 mlv); 768 return 0; 769 } 770 return pramdac_table[mlv]; 771 } 772} 773 774static int 775init_io_restrict_prog(struct nvbios *bios, uint16_t offset, 776 struct init_exec *iexec) 777{ 778 /* 779 * INIT_IO_RESTRICT_PROG opcode: 0x32 ('2') 780 * 781 * offset (8 bit): opcode 782 * offset + 1 (16 bit): CRTC port 783 * offset + 3 (8 bit): CRTC index 784 * offset + 4 (8 bit): mask 785 * offset + 5 (8 bit): shift 786 * offset + 6 (8 bit): count 787 * offset + 7 (32 bit): register 788 * offset + 11 (32 bit): configuration 1 789 * ... 790 * 791 * Starting at offset + 11 there are "count" 32 bit values. 792 * To find out which value to use read index "CRTC index" on "CRTC 793 * port", AND this value with "mask" and then bit shift right "shift" 794 * bits. Read the appropriate value using this index and write to 795 * "register" 796 */ 797 798 uint16_t crtcport = ROM16(bios->data[offset + 1]); 799 uint8_t crtcindex = bios->data[offset + 3]; 800 uint8_t mask = bios->data[offset + 4]; 801 uint8_t shift = bios->data[offset + 5]; 802 uint8_t count = bios->data[offset + 6]; 803 uint32_t reg = ROM32(bios->data[offset + 7]); 804 uint8_t config; 805 uint32_t configval; 806 int len = 11 + count * 4; 807 808 if (!iexec->execute) 809 return len; 810 811 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, " 812 "Shift: 0x%02X, Count: 0x%02X, Reg: 0x%08X\n", 813 offset, crtcport, crtcindex, mask, shift, count, reg); 814 815 config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift; 816 if (config > count) { 817 NV_ERROR(bios->dev, 818 "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n", 819 offset, config, count); 820 return 0; 821 } 822 823 configval = ROM32(bios->data[offset + 11 + config * 4]); 824 825 BIOSLOG(bios, "0x%04X: Writing config %02X\n", offset, config); 826 827 bios_wr32(bios, reg, configval); 828 829 return len; 830} 831 832static int 833init_repeat(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 834{ 835 /* 836 * INIT_REPEAT opcode: 0x33 ('3') 837 * 838 * offset (8 bit): opcode 839 * offset + 1 (8 bit): count 840 * 841 * Execute script following this opcode up to INIT_REPEAT_END 842 * "count" times 843 */ 844 845 uint8_t count = bios->data[offset + 1]; 846 uint8_t i; 847 848 /* no iexec->execute check by design */ 849 850 BIOSLOG(bios, "0x%04X: Repeating following segment %d times\n", 851 offset, count); 852 853 iexec->repeat = true; 854 855 /* 856 * count - 1, as the script block will execute once when we leave this 857 * opcode -- this is compatible with bios behaviour as: 858 * a) the block is always executed at least once, even if count == 0 859 * b) the bios interpreter skips to the op following INIT_END_REPEAT, 860 * while we don't 861 */ 862 for (i = 0; i < count - 1; i++) 863 parse_init_table(bios, offset + 2, iexec); 864 865 iexec->repeat = false; 866 867 return 2; 868} 869 870static int 871init_io_restrict_pll(struct nvbios *bios, uint16_t offset, 872 struct init_exec *iexec) 873{ 874 /* 875 * INIT_IO_RESTRICT_PLL opcode: 0x34 ('4') 876 * 877 * offset (8 bit): opcode 878 * offset + 1 (16 bit): CRTC port 879 * offset + 3 (8 bit): CRTC index 880 * offset + 4 (8 bit): mask 881 * offset + 5 (8 bit): shift 882 * offset + 6 (8 bit): IO flag condition index 883 * offset + 7 (8 bit): count 884 * offset + 8 (32 bit): register 885 * offset + 12 (16 bit): frequency 1 886 * ... 887 * 888 * Starting at offset + 12 there are "count" 16 bit frequencies (10kHz). 889 * Set PLL register "register" to coefficients for frequency n, 890 * selected by reading index "CRTC index" of "CRTC port" ANDed with 891 * "mask" and shifted right by "shift". 892 * 893 * If "IO flag condition index" > 0, and condition met, double 894 * frequency before setting it. 895 */ 896 897 uint16_t crtcport = ROM16(bios->data[offset + 1]); 898 uint8_t crtcindex = bios->data[offset + 3]; 899 uint8_t mask = bios->data[offset + 4]; 900 uint8_t shift = bios->data[offset + 5]; 901 int8_t io_flag_condition_idx = bios->data[offset + 6]; 902 uint8_t count = bios->data[offset + 7]; 903 uint32_t reg = ROM32(bios->data[offset + 8]); 904 uint8_t config; 905 uint16_t freq; 906 int len = 12 + count * 2; 907 908 if (!iexec->execute) 909 return len; 910 911 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, " 912 "Shift: 0x%02X, IO Flag Condition: 0x%02X, " 913 "Count: 0x%02X, Reg: 0x%08X\n", 914 offset, crtcport, crtcindex, mask, shift, 915 io_flag_condition_idx, count, reg); 916 917 config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift; 918 if (config > count) { 919 NV_ERROR(bios->dev, 920 "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n", 921 offset, config, count); 922 return 0; 923 } 924 925 freq = ROM16(bios->data[offset + 12 + config * 2]); 926 927 if (io_flag_condition_idx > 0) { 928 if (io_flag_condition_met(bios, offset, io_flag_condition_idx)) { 929 BIOSLOG(bios, "0x%04X: Condition fulfilled -- " 930 "frequency doubled\n", offset); 931 freq *= 2; 932 } else 933 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- " 934 "frequency unchanged\n", offset); 935 } 936 937 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Config: 0x%02X, Freq: %d0kHz\n", 938 offset, reg, config, freq); 939 940 setPLL(bios, reg, freq * 10); 941 942 return len; 943} 944 945static int 946init_end_repeat(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 947{ 948 /* 949 * INIT_END_REPEAT opcode: 0x36 ('6') 950 * 951 * offset (8 bit): opcode 952 * 953 * Marks the end of the block for INIT_REPEAT to repeat 954 */ 955 956 /* no iexec->execute check by design */ 957 958 /* 959 * iexec->repeat flag necessary to go past INIT_END_REPEAT opcode when 960 * we're not in repeat mode 961 */ 962 if (iexec->repeat) 963 return 0; 964 965 return 1; 966} 967 968static int 969init_copy(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 970{ 971 /* 972 * INIT_COPY opcode: 0x37 ('7') 973 * 974 * offset (8 bit): opcode 975 * offset + 1 (32 bit): register 976 * offset + 5 (8 bit): shift 977 * offset + 6 (8 bit): srcmask 978 * offset + 7 (16 bit): CRTC port 979 * offset + 9 (8 bit): CRTC index 980 * offset + 10 (8 bit): mask 981 * 982 * Read index "CRTC index" on "CRTC port", AND with "mask", OR with 983 * (REGVAL("register") >> "shift" & "srcmask") and write-back to CRTC 984 * port 985 */ 986 987 uint32_t reg = ROM32(bios->data[offset + 1]); 988 uint8_t shift = bios->data[offset + 5]; 989 uint8_t srcmask = bios->data[offset + 6]; 990 uint16_t crtcport = ROM16(bios->data[offset + 7]); 991 uint8_t crtcindex = bios->data[offset + 9]; 992 uint8_t mask = bios->data[offset + 10]; 993 uint32_t data; 994 uint8_t crtcdata; 995 996 if (!iexec->execute) 997 return 11; 998 999 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Shift: 0x%02X, SrcMask: 0x%02X, " 1000 "Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X\n", 1001 offset, reg, shift, srcmask, crtcport, crtcindex, mask); 1002 1003 data = bios_rd32(bios, reg); 1004 1005 if (shift < 0x80) 1006 data >>= shift; 1007 else 1008 data <<= (0x100 - shift); 1009 1010 data &= srcmask; 1011 1012 crtcdata = bios_idxprt_rd(bios, crtcport, crtcindex) & mask; 1013 crtcdata |= (uint8_t)data; 1014 bios_idxprt_wr(bios, crtcport, crtcindex, crtcdata); 1015 1016 return 11; 1017} 1018 1019static int 1020init_not(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1021{ 1022 /* 1023 * INIT_NOT opcode: 0x38 ('8') 1024 * 1025 * offset (8 bit): opcode 1026 * 1027 * Invert the current execute / no-execute condition (i.e. "else") 1028 */ 1029 if (iexec->execute) 1030 BIOSLOG(bios, "0x%04X: ------ Skipping following commands ------\n", offset); 1031 else 1032 BIOSLOG(bios, "0x%04X: ------ Executing following commands ------\n", offset); 1033 1034 iexec->execute = !iexec->execute; 1035 return 1; 1036} 1037 1038static int 1039init_io_flag_condition(struct nvbios *bios, uint16_t offset, 1040 struct init_exec *iexec) 1041{ 1042 /* 1043 * INIT_IO_FLAG_CONDITION opcode: 0x39 ('9') 1044 * 1045 * offset (8 bit): opcode 1046 * offset + 1 (8 bit): condition number 1047 * 1048 * Check condition "condition number" in the IO flag condition table. 1049 * If condition not met skip subsequent opcodes until condition is 1050 * inverted (INIT_NOT), or we hit INIT_RESUME 1051 */ 1052 1053 uint8_t cond = bios->data[offset + 1]; 1054 1055 if (!iexec->execute) 1056 return 2; 1057 1058 if (io_flag_condition_met(bios, offset, cond)) 1059 BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset); 1060 else { 1061 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset); 1062 iexec->execute = false; 1063 } 1064 1065 return 2; 1066} 1067 1068static int 1069init_idx_addr_latched(struct nvbios *bios, uint16_t offset, 1070 struct init_exec *iexec) 1071{ 1072 /* 1073 * INIT_INDEX_ADDRESS_LATCHED opcode: 0x49 ('I') 1074 * 1075 * offset (8 bit): opcode 1076 * offset + 1 (32 bit): control register 1077 * offset + 5 (32 bit): data register 1078 * offset + 9 (32 bit): mask 1079 * offset + 13 (32 bit): data 1080 * offset + 17 (8 bit): count 1081 * offset + 18 (8 bit): address 1 1082 * offset + 19 (8 bit): data 1 1083 * ... 1084 * 1085 * For each of "count" address and data pairs, write "data n" to 1086 * "data register", read the current value of "control register", 1087 * and write it back once ANDed with "mask", ORed with "data", 1088 * and ORed with "address n" 1089 */ 1090 1091 uint32_t controlreg = ROM32(bios->data[offset + 1]); 1092 uint32_t datareg = ROM32(bios->data[offset + 5]); 1093 uint32_t mask = ROM32(bios->data[offset + 9]); 1094 uint32_t data = ROM32(bios->data[offset + 13]); 1095 uint8_t count = bios->data[offset + 17]; 1096 int len = 18 + count * 2; 1097 uint32_t value; 1098 int i; 1099 1100 if (!iexec->execute) 1101 return len; 1102 1103 BIOSLOG(bios, "0x%04X: ControlReg: 0x%08X, DataReg: 0x%08X, " 1104 "Mask: 0x%08X, Data: 0x%08X, Count: 0x%02X\n", 1105 offset, controlreg, datareg, mask, data, count); 1106 1107 for (i = 0; i < count; i++) { 1108 uint8_t instaddress = bios->data[offset + 18 + i * 2]; 1109 uint8_t instdata = bios->data[offset + 19 + i * 2]; 1110 1111 BIOSLOG(bios, "0x%04X: Address: 0x%02X, Data: 0x%02X\n", 1112 offset, instaddress, instdata); 1113 1114 bios_wr32(bios, datareg, instdata); 1115 value = bios_rd32(bios, controlreg) & mask; 1116 value |= data; 1117 value |= instaddress; 1118 bios_wr32(bios, controlreg, value); 1119 } 1120 1121 return len; 1122} 1123 1124static int 1125init_io_restrict_pll2(struct nvbios *bios, uint16_t offset, 1126 struct init_exec *iexec) 1127{ 1128 /* 1129 * INIT_IO_RESTRICT_PLL2 opcode: 0x4A ('J') 1130 * 1131 * offset (8 bit): opcode 1132 * offset + 1 (16 bit): CRTC port 1133 * offset + 3 (8 bit): CRTC index 1134 * offset + 4 (8 bit): mask 1135 * offset + 5 (8 bit): shift 1136 * offset + 6 (8 bit): count 1137 * offset + 7 (32 bit): register 1138 * offset + 11 (32 bit): frequency 1 1139 * ... 1140 * 1141 * Starting at offset + 11 there are "count" 32 bit frequencies (kHz). 1142 * Set PLL register "register" to coefficients for frequency n, 1143 * selected by reading index "CRTC index" of "CRTC port" ANDed with 1144 * "mask" and shifted right by "shift". 1145 */ 1146 1147 uint16_t crtcport = ROM16(bios->data[offset + 1]); 1148 uint8_t crtcindex = bios->data[offset + 3]; 1149 uint8_t mask = bios->data[offset + 4]; 1150 uint8_t shift = bios->data[offset + 5]; 1151 uint8_t count = bios->data[offset + 6]; 1152 uint32_t reg = ROM32(bios->data[offset + 7]); 1153 int len = 11 + count * 4; 1154 uint8_t config; 1155 uint32_t freq; 1156 1157 if (!iexec->execute) 1158 return len; 1159 1160 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, " 1161 "Shift: 0x%02X, Count: 0x%02X, Reg: 0x%08X\n", 1162 offset, crtcport, crtcindex, mask, shift, count, reg); 1163 1164 if (!reg) 1165 return len; 1166 1167 config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift; 1168 if (config > count) { 1169 NV_ERROR(bios->dev, 1170 "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n", 1171 offset, config, count); 1172 return 0; 1173 } 1174 1175 freq = ROM32(bios->data[offset + 11 + config * 4]); 1176 1177 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Config: 0x%02X, Freq: %dkHz\n", 1178 offset, reg, config, freq); 1179 1180 setPLL(bios, reg, freq); 1181 1182 return len; 1183} 1184 1185static int 1186init_pll2(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1187{ 1188 /* 1189 * INIT_PLL2 opcode: 0x4B ('K') 1190 * 1191 * offset (8 bit): opcode 1192 * offset + 1 (32 bit): register 1193 * offset + 5 (32 bit): freq 1194 * 1195 * Set PLL register "register" to coefficients for frequency "freq" 1196 */ 1197 1198 uint32_t reg = ROM32(bios->data[offset + 1]); 1199 uint32_t freq = ROM32(bios->data[offset + 5]); 1200 1201 if (!iexec->execute) 1202 return 9; 1203 1204 BIOSLOG(bios, "0x%04X: Reg: 0x%04X, Freq: %dkHz\n", 1205 offset, reg, freq); 1206 1207 setPLL(bios, reg, freq); 1208 return 9; 1209} 1210 1211static int 1212init_i2c_byte(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1213{ 1214 /* 1215 * INIT_I2C_BYTE opcode: 0x4C ('L') 1216 * 1217 * offset (8 bit): opcode 1218 * offset + 1 (8 bit): DCB I2C table entry index 1219 * offset + 2 (8 bit): I2C slave address 1220 * offset + 3 (8 bit): count 1221 * offset + 4 (8 bit): I2C register 1 1222 * offset + 5 (8 bit): mask 1 1223 * offset + 6 (8 bit): data 1 1224 * ... 1225 * 1226 * For each of "count" registers given by "I2C register n" on the device 1227 * addressed by "I2C slave address" on the I2C bus given by 1228 * "DCB I2C table entry index", read the register, AND the result with 1229 * "mask n" and OR it with "data n" before writing it back to the device 1230 */ 1231 1232 uint8_t i2c_index = bios->data[offset + 1]; 1233 uint8_t i2c_address = bios->data[offset + 2]; 1234 uint8_t count = bios->data[offset + 3]; 1235 int len = 4 + count * 3; 1236 struct nouveau_i2c_chan *chan; 1237 struct i2c_msg msg; 1238 int i; 1239 1240 if (!iexec->execute) 1241 return len; 1242 1243 BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, " 1244 "Count: 0x%02X\n", 1245 offset, i2c_index, i2c_address, count); 1246 1247 chan = init_i2c_device_find(bios->dev, i2c_index); 1248 if (!chan) 1249 return 0; 1250 1251 for (i = 0; i < count; i++) { 1252 uint8_t i2c_reg = bios->data[offset + 4 + i * 3]; 1253 uint8_t mask = bios->data[offset + 5 + i * 3]; 1254 uint8_t data = bios->data[offset + 6 + i * 3]; 1255 uint8_t value; 1256 1257 msg.addr = i2c_address; 1258 msg.flags = I2C_M_RD; 1259 msg.len = 1; 1260 msg.buf = &value; 1261 if (i2c_transfer(&chan->adapter, &msg, 1) != 1) 1262 return 0; 1263 1264 BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Value: 0x%02X, " 1265 "Mask: 0x%02X, Data: 0x%02X\n", 1266 offset, i2c_reg, value, mask, data); 1267 1268 value = (value & mask) | data; 1269 1270 if (bios->execute) { 1271 msg.addr = i2c_address; 1272 msg.flags = 0; 1273 msg.len = 1; 1274 msg.buf = &value; 1275 if (i2c_transfer(&chan->adapter, &msg, 1) != 1) 1276 return 0; 1277 } 1278 } 1279 1280 return len; 1281} 1282 1283static int 1284init_zm_i2c_byte(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1285{ 1286 /* 1287 * INIT_ZM_I2C_BYTE opcode: 0x4D ('M') 1288 * 1289 * offset (8 bit): opcode 1290 * offset + 1 (8 bit): DCB I2C table entry index 1291 * offset + 2 (8 bit): I2C slave address 1292 * offset + 3 (8 bit): count 1293 * offset + 4 (8 bit): I2C register 1 1294 * offset + 5 (8 bit): data 1 1295 * ... 1296 * 1297 * For each of "count" registers given by "I2C register n" on the device 1298 * addressed by "I2C slave address" on the I2C bus given by 1299 * "DCB I2C table entry index", set the register to "data n" 1300 */ 1301 1302 uint8_t i2c_index = bios->data[offset + 1]; 1303 uint8_t i2c_address = bios->data[offset + 2]; 1304 uint8_t count = bios->data[offset + 3]; 1305 int len = 4 + count * 2; 1306 struct nouveau_i2c_chan *chan; 1307 struct i2c_msg msg; 1308 int i; 1309 1310 if (!iexec->execute) 1311 return len; 1312 1313 BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, " 1314 "Count: 0x%02X\n", 1315 offset, i2c_index, i2c_address, count); 1316 1317 chan = init_i2c_device_find(bios->dev, i2c_index); 1318 if (!chan) 1319 return 0; 1320 1321 for (i = 0; i < count; i++) { 1322 uint8_t i2c_reg = bios->data[offset + 4 + i * 2]; 1323 uint8_t data = bios->data[offset + 5 + i * 2]; 1324 1325 BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Data: 0x%02X\n", 1326 offset, i2c_reg, data); 1327 1328 if (bios->execute) { 1329 msg.addr = i2c_address; 1330 msg.flags = 0; 1331 msg.len = 1; 1332 msg.buf = &data; 1333 if (i2c_transfer(&chan->adapter, &msg, 1) != 1) 1334 return 0; 1335 } 1336 } 1337 1338 return len; 1339} 1340 1341static int 1342init_zm_i2c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1343{ 1344 /* 1345 * INIT_ZM_I2C opcode: 0x4E ('N') 1346 * 1347 * offset (8 bit): opcode 1348 * offset + 1 (8 bit): DCB I2C table entry index 1349 * offset + 2 (8 bit): I2C slave address 1350 * offset + 3 (8 bit): count 1351 * offset + 4 (8 bit): data 1 1352 * ... 1353 * 1354 * Send "count" bytes ("data n") to the device addressed by "I2C slave 1355 * address" on the I2C bus given by "DCB I2C table entry index" 1356 */ 1357 1358 uint8_t i2c_index = bios->data[offset + 1]; 1359 uint8_t i2c_address = bios->data[offset + 2]; 1360 uint8_t count = bios->data[offset + 3]; 1361 int len = 4 + count; 1362 struct nouveau_i2c_chan *chan; 1363 struct i2c_msg msg; 1364 uint8_t data[256]; 1365 int i; 1366 1367 if (!iexec->execute) 1368 return len; 1369 1370 BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, " 1371 "Count: 0x%02X\n", 1372 offset, i2c_index, i2c_address, count); 1373 1374 chan = init_i2c_device_find(bios->dev, i2c_index); 1375 if (!chan) 1376 return 0; 1377 1378 for (i = 0; i < count; i++) { 1379 data[i] = bios->data[offset + 4 + i]; 1380 1381 BIOSLOG(bios, "0x%04X: Data: 0x%02X\n", offset, data[i]); 1382 } 1383 1384 if (bios->execute) { 1385 msg.addr = i2c_address; 1386 msg.flags = 0; 1387 msg.len = count; 1388 msg.buf = data; 1389 if (i2c_transfer(&chan->adapter, &msg, 1) != 1) 1390 return 0; 1391 } 1392 1393 return len; 1394} 1395 1396static int 1397init_tmds(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1398{ 1399 /* 1400 * INIT_TMDS opcode: 0x4F ('O') (non-canon name) 1401 * 1402 * offset (8 bit): opcode 1403 * offset + 1 (8 bit): magic lookup value 1404 * offset + 2 (8 bit): TMDS address 1405 * offset + 3 (8 bit): mask 1406 * offset + 4 (8 bit): data 1407 * 1408 * Read the data reg for TMDS address "TMDS address", AND it with mask 1409 * and OR it with data, then write it back 1410 * "magic lookup value" determines which TMDS base address register is 1411 * used -- see get_tmds_index_reg() 1412 */ 1413 1414 uint8_t mlv = bios->data[offset + 1]; 1415 uint32_t tmdsaddr = bios->data[offset + 2]; 1416 uint8_t mask = bios->data[offset + 3]; 1417 uint8_t data = bios->data[offset + 4]; 1418 uint32_t reg, value; 1419 1420 if (!iexec->execute) 1421 return 5; 1422 1423 BIOSLOG(bios, "0x%04X: MagicLookupValue: 0x%02X, TMDSAddr: 0x%02X, " 1424 "Mask: 0x%02X, Data: 0x%02X\n", 1425 offset, mlv, tmdsaddr, mask, data); 1426 1427 reg = get_tmds_index_reg(bios->dev, mlv); 1428 if (!reg) 1429 return 0; 1430 1431 bios_wr32(bios, reg, 1432 tmdsaddr | NV_PRAMDAC_FP_TMDS_CONTROL_WRITE_DISABLE); 1433 value = (bios_rd32(bios, reg + 4) & mask) | data; 1434 bios_wr32(bios, reg + 4, value); 1435 bios_wr32(bios, reg, tmdsaddr); 1436 1437 return 5; 1438} 1439 1440static int 1441init_zm_tmds_group(struct nvbios *bios, uint16_t offset, 1442 struct init_exec *iexec) 1443{ 1444 /* 1445 * INIT_ZM_TMDS_GROUP opcode: 0x50 ('P') (non-canon name) 1446 * 1447 * offset (8 bit): opcode 1448 * offset + 1 (8 bit): magic lookup value 1449 * offset + 2 (8 bit): count 1450 * offset + 3 (8 bit): addr 1 1451 * offset + 4 (8 bit): data 1 1452 * ... 1453 * 1454 * For each of "count" TMDS address and data pairs write "data n" to 1455 * "addr n". "magic lookup value" determines which TMDS base address 1456 * register is used -- see get_tmds_index_reg() 1457 */ 1458 1459 uint8_t mlv = bios->data[offset + 1]; 1460 uint8_t count = bios->data[offset + 2]; 1461 int len = 3 + count * 2; 1462 uint32_t reg; 1463 int i; 1464 1465 if (!iexec->execute) 1466 return len; 1467 1468 BIOSLOG(bios, "0x%04X: MagicLookupValue: 0x%02X, Count: 0x%02X\n", 1469 offset, mlv, count); 1470 1471 reg = get_tmds_index_reg(bios->dev, mlv); 1472 if (!reg) 1473 return 0; 1474 1475 for (i = 0; i < count; i++) { 1476 uint8_t tmdsaddr = bios->data[offset + 3 + i * 2]; 1477 uint8_t tmdsdata = bios->data[offset + 4 + i * 2]; 1478 1479 bios_wr32(bios, reg + 4, tmdsdata); 1480 bios_wr32(bios, reg, tmdsaddr); 1481 } 1482 1483 return len; 1484} 1485 1486static int 1487init_cr_idx_adr_latch(struct nvbios *bios, uint16_t offset, 1488 struct init_exec *iexec) 1489{ 1490 /* 1491 * INIT_CR_INDEX_ADDRESS_LATCHED opcode: 0x51 ('Q') 1492 * 1493 * offset (8 bit): opcode 1494 * offset + 1 (8 bit): CRTC index1 1495 * offset + 2 (8 bit): CRTC index2 1496 * offset + 3 (8 bit): baseaddr 1497 * offset + 4 (8 bit): count 1498 * offset + 5 (8 bit): data 1 1499 * ... 1500 * 1501 * For each of "count" address and data pairs, write "baseaddr + n" to 1502 * "CRTC index1" and "data n" to "CRTC index2" 1503 * Once complete, restore initial value read from "CRTC index1" 1504 */ 1505 uint8_t crtcindex1 = bios->data[offset + 1]; 1506 uint8_t crtcindex2 = bios->data[offset + 2]; 1507 uint8_t baseaddr = bios->data[offset + 3]; 1508 uint8_t count = bios->data[offset + 4]; 1509 int len = 5 + count; 1510 uint8_t oldaddr, data; 1511 int i; 1512 1513 if (!iexec->execute) 1514 return len; 1515 1516 BIOSLOG(bios, "0x%04X: Index1: 0x%02X, Index2: 0x%02X, " 1517 "BaseAddr: 0x%02X, Count: 0x%02X\n", 1518 offset, crtcindex1, crtcindex2, baseaddr, count); 1519 1520 oldaddr = bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, crtcindex1); 1521 1522 for (i = 0; i < count; i++) { 1523 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex1, 1524 baseaddr + i); 1525 data = bios->data[offset + 5 + i]; 1526 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex2, data); 1527 } 1528 1529 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex1, oldaddr); 1530 1531 return len; 1532} 1533 1534static int 1535init_cr(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1536{ 1537 /* 1538 * INIT_CR opcode: 0x52 ('R') 1539 * 1540 * offset (8 bit): opcode 1541 * offset + 1 (8 bit): CRTC index 1542 * offset + 2 (8 bit): mask 1543 * offset + 3 (8 bit): data 1544 * 1545 * Assign the value of at "CRTC index" ANDed with mask and ORed with 1546 * data back to "CRTC index" 1547 */ 1548 1549 uint8_t crtcindex = bios->data[offset + 1]; 1550 uint8_t mask = bios->data[offset + 2]; 1551 uint8_t data = bios->data[offset + 3]; 1552 uint8_t value; 1553 1554 if (!iexec->execute) 1555 return 4; 1556 1557 BIOSLOG(bios, "0x%04X: Index: 0x%02X, Mask: 0x%02X, Data: 0x%02X\n", 1558 offset, crtcindex, mask, data); 1559 1560 value = bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, crtcindex) & mask; 1561 value |= data; 1562 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex, value); 1563 1564 return 4; 1565} 1566 1567static int 1568init_zm_cr(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1569{ 1570 /* 1571 * INIT_ZM_CR opcode: 0x53 ('S') 1572 * 1573 * offset (8 bit): opcode 1574 * offset + 1 (8 bit): CRTC index 1575 * offset + 2 (8 bit): value 1576 * 1577 * Assign "value" to CRTC register with index "CRTC index". 1578 */ 1579 1580 uint8_t crtcindex = ROM32(bios->data[offset + 1]); 1581 uint8_t data = bios->data[offset + 2]; 1582 1583 if (!iexec->execute) 1584 return 3; 1585 1586 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex, data); 1587 1588 return 3; 1589} 1590 1591static int 1592init_zm_cr_group(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1593{ 1594 /* 1595 * INIT_ZM_CR_GROUP opcode: 0x54 ('T') 1596 * 1597 * offset (8 bit): opcode 1598 * offset + 1 (8 bit): count 1599 * offset + 2 (8 bit): CRTC index 1 1600 * offset + 3 (8 bit): value 1 1601 * ... 1602 * 1603 * For "count", assign "value n" to CRTC register with index 1604 * "CRTC index n". 1605 */ 1606 1607 uint8_t count = bios->data[offset + 1]; 1608 int len = 2 + count * 2; 1609 int i; 1610 1611 if (!iexec->execute) 1612 return len; 1613 1614 for (i = 0; i < count; i++) 1615 init_zm_cr(bios, offset + 2 + 2 * i - 1, iexec); 1616 1617 return len; 1618} 1619 1620static int 1621init_condition_time(struct nvbios *bios, uint16_t offset, 1622 struct init_exec *iexec) 1623{ 1624 /* 1625 * INIT_CONDITION_TIME opcode: 0x56 ('V') 1626 * 1627 * offset (8 bit): opcode 1628 * offset + 1 (8 bit): condition number 1629 * offset + 2 (8 bit): retries / 50 1630 * 1631 * Check condition "condition number" in the condition table. 1632 * Bios code then sleeps for 2ms if the condition is not met, and 1633 * repeats up to "retries" times, but on one C51 this has proved 1634 * insufficient. In mmiotraces the driver sleeps for 20ms, so we do 1635 * this, and bail after "retries" times, or 2s, whichever is less. 1636 * If still not met after retries, clear execution flag for this table. 1637 */ 1638 1639 uint8_t cond = bios->data[offset + 1]; 1640 uint16_t retries = bios->data[offset + 2] * 50; 1641 unsigned cnt; 1642 1643 if (!iexec->execute) 1644 return 3; 1645 1646 if (retries > 100) 1647 retries = 100; 1648 1649 BIOSLOG(bios, "0x%04X: Condition: 0x%02X, Retries: 0x%02X\n", 1650 offset, cond, retries); 1651 1652 if (!bios->execute) /* avoid 2s delays when "faking" execution */ 1653 retries = 1; 1654 1655 for (cnt = 0; cnt < retries; cnt++) { 1656 if (bios_condition_met(bios, offset, cond)) { 1657 BIOSLOG(bios, "0x%04X: Condition met, continuing\n", 1658 offset); 1659 break; 1660 } else { 1661 BIOSLOG(bios, "0x%04X: " 1662 "Condition not met, sleeping for 20ms\n", 1663 offset); 1664 msleep(20); 1665 } 1666 } 1667 1668 if (!bios_condition_met(bios, offset, cond)) { 1669 NV_WARN(bios->dev, 1670 "0x%04X: Condition still not met after %dms, " 1671 "skipping following opcodes\n", offset, 20 * retries); 1672 iexec->execute = false; 1673 } 1674 1675 return 3; 1676} 1677 1678static int 1679init_zm_reg_sequence(struct nvbios *bios, uint16_t offset, 1680 struct init_exec *iexec) 1681{ 1682 /* 1683 * INIT_ZM_REG_SEQUENCE opcode: 0x58 ('X') 1684 * 1685 * offset (8 bit): opcode 1686 * offset + 1 (32 bit): base register 1687 * offset + 5 (8 bit): count 1688 * offset + 6 (32 bit): value 1 1689 * ... 1690 * 1691 * Starting at offset + 6 there are "count" 32 bit values. 1692 * For "count" iterations set "base register" + 4 * current_iteration 1693 * to "value current_iteration" 1694 */ 1695 1696 uint32_t basereg = ROM32(bios->data[offset + 1]); 1697 uint32_t count = bios->data[offset + 5]; 1698 int len = 6 + count * 4; 1699 int i; 1700 1701 if (!iexec->execute) 1702 return len; 1703 1704 BIOSLOG(bios, "0x%04X: BaseReg: 0x%08X, Count: 0x%02X\n", 1705 offset, basereg, count); 1706 1707 for (i = 0; i < count; i++) { 1708 uint32_t reg = basereg + i * 4; 1709 uint32_t data = ROM32(bios->data[offset + 6 + i * 4]); 1710 1711 bios_wr32(bios, reg, data); 1712 } 1713 1714 return len; 1715} 1716 1717static int 1718init_sub_direct(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1719{ 1720 /* 1721 * INIT_SUB_DIRECT opcode: 0x5B ('[') 1722 * 1723 * offset (8 bit): opcode 1724 * offset + 1 (16 bit): subroutine offset (in bios) 1725 * 1726 * Calls a subroutine that will execute commands until INIT_DONE 1727 * is found. 1728 */ 1729 1730 uint16_t sub_offset = ROM16(bios->data[offset + 1]); 1731 1732 if (!iexec->execute) 1733 return 3; 1734 1735 BIOSLOG(bios, "0x%04X: Executing subroutine at 0x%04X\n", 1736 offset, sub_offset); 1737 1738 parse_init_table(bios, sub_offset, iexec); 1739 1740 BIOSLOG(bios, "0x%04X: End of 0x%04X subroutine\n", offset, sub_offset); 1741 1742 return 3; 1743} 1744 1745static int 1746init_copy_nv_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1747{ 1748 /* 1749 * INIT_COPY_NV_REG opcode: 0x5F ('_') 1750 * 1751 * offset (8 bit): opcode 1752 * offset + 1 (32 bit): src reg 1753 * offset + 5 (8 bit): shift 1754 * offset + 6 (32 bit): src mask 1755 * offset + 10 (32 bit): xor 1756 * offset + 14 (32 bit): dst reg 1757 * offset + 18 (32 bit): dst mask 1758 * 1759 * Shift REGVAL("src reg") right by (signed) "shift", AND result with 1760 * "src mask", then XOR with "xor". Write this OR'd with 1761 * (REGVAL("dst reg") AND'd with "dst mask") to "dst reg" 1762 */ 1763 1764 uint32_t srcreg = *((uint32_t *)(&bios->data[offset + 1])); 1765 uint8_t shift = bios->data[offset + 5]; 1766 uint32_t srcmask = *((uint32_t *)(&bios->data[offset + 6])); 1767 uint32_t xor = *((uint32_t *)(&bios->data[offset + 10])); 1768 uint32_t dstreg = *((uint32_t *)(&bios->data[offset + 14])); 1769 uint32_t dstmask = *((uint32_t *)(&bios->data[offset + 18])); 1770 uint32_t srcvalue, dstvalue; 1771 1772 if (!iexec->execute) 1773 return 22; 1774 1775 BIOSLOG(bios, "0x%04X: SrcReg: 0x%08X, Shift: 0x%02X, SrcMask: 0x%08X, " 1776 "Xor: 0x%08X, DstReg: 0x%08X, DstMask: 0x%08X\n", 1777 offset, srcreg, shift, srcmask, xor, dstreg, dstmask); 1778 1779 srcvalue = bios_rd32(bios, srcreg); 1780 1781 if (shift < 0x80) 1782 srcvalue >>= shift; 1783 else 1784 srcvalue <<= (0x100 - shift); 1785 1786 srcvalue = (srcvalue & srcmask) ^ xor; 1787 1788 dstvalue = bios_rd32(bios, dstreg) & dstmask; 1789 1790 bios_wr32(bios, dstreg, dstvalue | srcvalue); 1791 1792 return 22; 1793} 1794 1795static int 1796init_zm_index_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1797{ 1798 /* 1799 * INIT_ZM_INDEX_IO opcode: 0x62 ('b') 1800 * 1801 * offset (8 bit): opcode 1802 * offset + 1 (16 bit): CRTC port 1803 * offset + 3 (8 bit): CRTC index 1804 * offset + 4 (8 bit): data 1805 * 1806 * Write "data" to index "CRTC index" of "CRTC port" 1807 */ 1808 uint16_t crtcport = ROM16(bios->data[offset + 1]); 1809 uint8_t crtcindex = bios->data[offset + 3]; 1810 uint8_t data = bios->data[offset + 4]; 1811 1812 if (!iexec->execute) 1813 return 5; 1814 1815 bios_idxprt_wr(bios, crtcport, crtcindex, data); 1816 1817 return 5; 1818} 1819 1820static int 1821init_compute_mem(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1822{ 1823 /* 1824 * INIT_COMPUTE_MEM opcode: 0x63 ('c') 1825 * 1826 * offset (8 bit): opcode 1827 * 1828 * This opcode is meant to set NV_PFB_CFG0 (0x100200) appropriately so 1829 * that the hardware can correctly calculate how much VRAM it has 1830 * (and subsequently report that value in NV_PFB_CSTATUS (0x10020C)) 1831 * 1832 * The implementation of this opcode in general consists of two parts: 1833 * 1) determination of the memory bus width 1834 * 2) determination of how many of the card's RAM pads have ICs attached 1835 * 1836 * 1) is done by a cunning combination of writes to offsets 0x1c and 1837 * 0x3c in the framebuffer, and seeing whether the written values are 1838 * read back correctly. This then affects bits 4-7 of NV_PFB_CFG0 1839 * 1840 * 2) is done by a cunning combination of writes to an offset slightly 1841 * less than the maximum memory reported by NV_PFB_CSTATUS, then seeing 1842 * if the test pattern can be read back. This then affects bits 12-15 of 1843 * NV_PFB_CFG0 1844 * 1845 * In this context a "cunning combination" may include multiple reads 1846 * and writes to varying locations, often alternating the test pattern 1847 * and 0, doubtless to make sure buffers are filled, residual charges 1848 * on tracks are removed etc. 1849 * 1850 * Unfortunately, the "cunning combination"s mentioned above, and the 1851 * changes to the bits in NV_PFB_CFG0 differ with nearly every bios 1852 * trace I have. 1853 * 1854 * Therefore, we cheat and assume the value of NV_PFB_CFG0 with which 1855 * we started was correct, and use that instead 1856 */ 1857 1858 /* no iexec->execute check by design */ 1859 1860 /* 1861 * This appears to be a NOP on G8x chipsets, both io logs of the VBIOS 1862 * and kmmio traces of the binary driver POSTing the card show nothing 1863 * being done for this opcode. why is it still listed in the table?! 1864 */ 1865 1866 struct drm_nouveau_private *dev_priv = bios->dev->dev_private; 1867 1868 if (dev_priv->card_type >= NV_50) 1869 return 1; 1870 1871 /* 1872 * On every card I've seen, this step gets done for us earlier in 1873 * the init scripts 1874 uint8_t crdata = bios_idxprt_rd(dev, NV_VIO_SRX, 0x01); 1875 bios_idxprt_wr(dev, NV_VIO_SRX, 0x01, crdata | 0x20); 1876 */ 1877 1878 /* 1879 * This also has probably been done in the scripts, but an mmio trace of 1880 * s3 resume shows nvidia doing it anyway (unlike the NV_VIO_SRX write) 1881 */ 1882 bios_wr32(bios, NV_PFB_REFCTRL, NV_PFB_REFCTRL_VALID_1); 1883 1884 /* write back the saved configuration value */ 1885 bios_wr32(bios, NV_PFB_CFG0, bios->state.saved_nv_pfb_cfg0); 1886 1887 return 1; 1888} 1889 1890static int 1891init_reset(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 1892{ 1893 /* 1894 * INIT_RESET opcode: 0x65 ('e') 1895 * 1896 * offset (8 bit): opcode 1897 * offset + 1 (32 bit): register 1898 * offset + 5 (32 bit): value1 1899 * offset + 9 (32 bit): value2 1900 * 1901 * Assign "value1" to "register", then assign "value2" to "register" 1902 */ 1903 1904 uint32_t reg = ROM32(bios->data[offset + 1]); 1905 uint32_t value1 = ROM32(bios->data[offset + 5]); 1906 uint32_t value2 = ROM32(bios->data[offset + 9]); 1907 uint32_t pci_nv_19, pci_nv_20; 1908 1909 /* no iexec->execute check by design */ 1910 1911 pci_nv_19 = bios_rd32(bios, NV_PBUS_PCI_NV_19); 1912 bios_wr32(bios, NV_PBUS_PCI_NV_19, 0); 1913 bios_wr32(bios, reg, value1); 1914 1915 udelay(10); 1916 1917 bios_wr32(bios, reg, value2); 1918 bios_wr32(bios, NV_PBUS_PCI_NV_19, pci_nv_19); 1919 1920 pci_nv_20 = bios_rd32(bios, NV_PBUS_PCI_NV_20); 1921 pci_nv_20 &= ~NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED; /* 0xfffffffe */ 1922 bios_wr32(bios, NV_PBUS_PCI_NV_20, pci_nv_20); 1923 1924 return 13; 1925} 1926 1927static int 1928init_configure_mem(struct nvbios *bios, uint16_t offset, 1929 struct init_exec *iexec) 1930{ 1931 /* 1932 * INIT_CONFIGURE_MEM opcode: 0x66 ('f') 1933 * 1934 * offset (8 bit): opcode 1935 * 1936 * Equivalent to INIT_DONE on bios version 3 or greater. 1937 * For early bios versions, sets up the memory registers, using values 1938 * taken from the memory init table 1939 */ 1940 1941 /* no iexec->execute check by design */ 1942 1943 uint16_t meminitoffs = bios->legacy.mem_init_tbl_ptr + MEM_INIT_SIZE * (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_SCRATCH4__INDEX) >> 4); 1944 uint16_t seqtbloffs = bios->legacy.sdr_seq_tbl_ptr, meminitdata = meminitoffs + 6; 1945 uint32_t reg, data; 1946 1947 if (bios->major_version > 2) 1948 return 0; 1949 1950 bios_idxprt_wr(bios, NV_VIO_SRX, NV_VIO_SR_CLOCK_INDEX, bios_idxprt_rd( 1951 bios, NV_VIO_SRX, NV_VIO_SR_CLOCK_INDEX) | 0x20); 1952 1953 if (bios->data[meminitoffs] & 1) 1954 seqtbloffs = bios->legacy.ddr_seq_tbl_ptr; 1955 1956 for (reg = ROM32(bios->data[seqtbloffs]); 1957 reg != 0xffffffff; 1958 reg = ROM32(bios->data[seqtbloffs += 4])) { 1959 1960 switch (reg) { 1961 case NV_PFB_PRE: 1962 data = NV_PFB_PRE_CMD_PRECHARGE; 1963 break; 1964 case NV_PFB_PAD: 1965 data = NV_PFB_PAD_CKE_NORMAL; 1966 break; 1967 case NV_PFB_REF: 1968 data = NV_PFB_REF_CMD_REFRESH; 1969 break; 1970 default: 1971 data = ROM32(bios->data[meminitdata]); 1972 meminitdata += 4; 1973 if (data == 0xffffffff) 1974 continue; 1975 } 1976 1977 bios_wr32(bios, reg, data); 1978 } 1979 1980 return 1; 1981} 1982 1983static int 1984init_configure_clk(struct nvbios *bios, uint16_t offset, 1985 struct init_exec *iexec) 1986{ 1987 /* 1988 * INIT_CONFIGURE_CLK opcode: 0x67 ('g') 1989 * 1990 * offset (8 bit): opcode 1991 * 1992 * Equivalent to INIT_DONE on bios version 3 or greater. 1993 * For early bios versions, sets up the NVClk and MClk PLLs, using 1994 * values taken from the memory init table 1995 */ 1996 1997 /* no iexec->execute check by design */ 1998 1999 uint16_t meminitoffs = bios->legacy.mem_init_tbl_ptr + MEM_INIT_SIZE * (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_SCRATCH4__INDEX) >> 4); 2000 int clock; 2001 2002 if (bios->major_version > 2) 2003 return 0; 2004 2005 clock = ROM16(bios->data[meminitoffs + 4]) * 10; 2006 setPLL(bios, NV_PRAMDAC_NVPLL_COEFF, clock); 2007 2008 clock = ROM16(bios->data[meminitoffs + 2]) * 10; 2009 if (bios->data[meminitoffs] & 1) /* DDR */ 2010 clock *= 2; 2011 setPLL(bios, NV_PRAMDAC_MPLL_COEFF, clock); 2012 2013 return 1; 2014} 2015 2016static int 2017init_configure_preinit(struct nvbios *bios, uint16_t offset, 2018 struct init_exec *iexec) 2019{ 2020 /* 2021 * INIT_CONFIGURE_PREINIT opcode: 0x68 ('h') 2022 * 2023 * offset (8 bit): opcode 2024 * 2025 * Equivalent to INIT_DONE on bios version 3 or greater. 2026 * For early bios versions, does early init, loading ram and crystal 2027 * configuration from straps into CR3C 2028 */ 2029 2030 /* no iexec->execute check by design */ 2031 2032 uint32_t straps = bios_rd32(bios, NV_PEXTDEV_BOOT_0); 2033 uint8_t cr3c = ((straps << 2) & 0xf0) | (straps & (1 << 6)); 2034 2035 if (bios->major_version > 2) 2036 return 0; 2037 2038 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, 2039 NV_CIO_CRE_SCRATCH4__INDEX, cr3c); 2040 2041 return 1; 2042} 2043 2044static int 2045init_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2046{ 2047 /* 2048 * INIT_IO opcode: 0x69 ('i') 2049 * 2050 * offset (8 bit): opcode 2051 * offset + 1 (16 bit): CRTC port 2052 * offset + 3 (8 bit): mask 2053 * offset + 4 (8 bit): data 2054 * 2055 * Assign ((IOVAL("crtc port") & "mask") | "data") to "crtc port" 2056 */ 2057 2058 struct drm_nouveau_private *dev_priv = bios->dev->dev_private; 2059 uint16_t crtcport = ROM16(bios->data[offset + 1]); 2060 uint8_t mask = bios->data[offset + 3]; 2061 uint8_t data = bios->data[offset + 4]; 2062 2063 if (!iexec->execute) 2064 return 5; 2065 2066 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Mask: 0x%02X, Data: 0x%02X\n", 2067 offset, crtcport, mask, data); 2068 2069 /* 2070 * I have no idea what this does, but NVIDIA do this magic sequence 2071 * in the places where this INIT_IO happens.. 2072 */ 2073 if (dev_priv->card_type >= NV_50 && crtcport == 0x3c3 && data == 1) { 2074 int i; 2075 2076 bios_wr32(bios, 0x614100, (bios_rd32( 2077 bios, 0x614100) & 0x0fffffff) | 0x00800000); 2078 2079 bios_wr32(bios, 0x00e18c, bios_rd32( 2080 bios, 0x00e18c) | 0x00020000); 2081 2082 bios_wr32(bios, 0x614900, (bios_rd32( 2083 bios, 0x614900) & 0x0fffffff) | 0x00800000); 2084 2085 bios_wr32(bios, 0x000200, bios_rd32( 2086 bios, 0x000200) & ~0x40000000); 2087 2088 mdelay(10); 2089 2090 bios_wr32(bios, 0x00e18c, bios_rd32( 2091 bios, 0x00e18c) & ~0x00020000); 2092 2093 bios_wr32(bios, 0x000200, bios_rd32( 2094 bios, 0x000200) | 0x40000000); 2095 2096 bios_wr32(bios, 0x614100, 0x00800018); 2097 bios_wr32(bios, 0x614900, 0x00800018); 2098 2099 mdelay(10); 2100 2101 bios_wr32(bios, 0x614100, 0x10000018); 2102 bios_wr32(bios, 0x614900, 0x10000018); 2103 2104 for (i = 0; i < 3; i++) 2105 bios_wr32(bios, 0x614280 + (i*0x800), bios_rd32( 2106 bios, 0x614280 + (i*0x800)) & 0xf0f0f0f0); 2107 2108 for (i = 0; i < 2; i++) 2109 bios_wr32(bios, 0x614300 + (i*0x800), bios_rd32( 2110 bios, 0x614300 + (i*0x800)) & 0xfffff0f0); 2111 2112 for (i = 0; i < 3; i++) 2113 bios_wr32(bios, 0x614380 + (i*0x800), bios_rd32( 2114 bios, 0x614380 + (i*0x800)) & 0xfffff0f0); 2115 2116 for (i = 0; i < 2; i++) 2117 bios_wr32(bios, 0x614200 + (i*0x800), bios_rd32( 2118 bios, 0x614200 + (i*0x800)) & 0xfffffff0); 2119 2120 for (i = 0; i < 2; i++) 2121 bios_wr32(bios, 0x614108 + (i*0x800), bios_rd32( 2122 bios, 0x614108 + (i*0x800)) & 0x0fffffff); 2123 return 5; 2124 } 2125 2126 bios_port_wr(bios, crtcport, (bios_port_rd(bios, crtcport) & mask) | 2127 data); 2128 return 5; 2129} 2130 2131static int 2132init_sub(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2133{ 2134 /* 2135 * INIT_SUB opcode: 0x6B ('k') 2136 * 2137 * offset (8 bit): opcode 2138 * offset + 1 (8 bit): script number 2139 * 2140 * Execute script number "script number", as a subroutine 2141 */ 2142 2143 uint8_t sub = bios->data[offset + 1]; 2144 2145 if (!iexec->execute) 2146 return 2; 2147 2148 BIOSLOG(bios, "0x%04X: Calling script %d\n", offset, sub); 2149 2150 parse_init_table(bios, 2151 ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]), 2152 iexec); 2153 2154 BIOSLOG(bios, "0x%04X: End of script %d\n", offset, sub); 2155 2156 return 2; 2157} 2158 2159static int 2160init_ram_condition(struct nvbios *bios, uint16_t offset, 2161 struct init_exec *iexec) 2162{ 2163 /* 2164 * INIT_RAM_CONDITION opcode: 0x6D ('m') 2165 * 2166 * offset (8 bit): opcode 2167 * offset + 1 (8 bit): mask 2168 * offset + 2 (8 bit): cmpval 2169 * 2170 * Test if (NV_PFB_BOOT_0 & "mask") equals "cmpval". 2171 * If condition not met skip subsequent opcodes until condition is 2172 * inverted (INIT_NOT), or we hit INIT_RESUME 2173 */ 2174 2175 uint8_t mask = bios->data[offset + 1]; 2176 uint8_t cmpval = bios->data[offset + 2]; 2177 uint8_t data; 2178 2179 if (!iexec->execute) 2180 return 3; 2181 2182 data = bios_rd32(bios, NV_PFB_BOOT_0) & mask; 2183 2184 BIOSLOG(bios, "0x%04X: Checking if 0x%08X equals 0x%08X\n", 2185 offset, data, cmpval); 2186 2187 if (data == cmpval) 2188 BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset); 2189 else { 2190 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset); 2191 iexec->execute = false; 2192 } 2193 2194 return 3; 2195} 2196 2197static int 2198init_nv_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2199{ 2200 /* 2201 * INIT_NV_REG opcode: 0x6E ('n') 2202 * 2203 * offset (8 bit): opcode 2204 * offset + 1 (32 bit): register 2205 * offset + 5 (32 bit): mask 2206 * offset + 9 (32 bit): data 2207 * 2208 * Assign ((REGVAL("register") & "mask") | "data") to "register" 2209 */ 2210 2211 uint32_t reg = ROM32(bios->data[offset + 1]); 2212 uint32_t mask = ROM32(bios->data[offset + 5]); 2213 uint32_t data = ROM32(bios->data[offset + 9]); 2214 2215 if (!iexec->execute) 2216 return 13; 2217 2218 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Mask: 0x%08X, Data: 0x%08X\n", 2219 offset, reg, mask, data); 2220 2221 bios_wr32(bios, reg, (bios_rd32(bios, reg) & mask) | data); 2222 2223 return 13; 2224} 2225 2226static int 2227init_macro(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2228{ 2229 /* 2230 * INIT_MACRO opcode: 0x6F ('o') 2231 * 2232 * offset (8 bit): opcode 2233 * offset + 1 (8 bit): macro number 2234 * 2235 * Look up macro index "macro number" in the macro index table. 2236 * The macro index table entry has 1 byte for the index in the macro 2237 * table, and 1 byte for the number of times to repeat the macro. 2238 * The macro table entry has 4 bytes for the register address and 2239 * 4 bytes for the value to write to that register 2240 */ 2241 2242 uint8_t macro_index_tbl_idx = bios->data[offset + 1]; 2243 uint16_t tmp = bios->macro_index_tbl_ptr + (macro_index_tbl_idx * MACRO_INDEX_SIZE); 2244 uint8_t macro_tbl_idx = bios->data[tmp]; 2245 uint8_t count = bios->data[tmp + 1]; 2246 uint32_t reg, data; 2247 int i; 2248 2249 if (!iexec->execute) 2250 return 2; 2251 2252 BIOSLOG(bios, "0x%04X: Macro: 0x%02X, MacroTableIndex: 0x%02X, " 2253 "Count: 0x%02X\n", 2254 offset, macro_index_tbl_idx, macro_tbl_idx, count); 2255 2256 for (i = 0; i < count; i++) { 2257 uint16_t macroentryptr = bios->macro_tbl_ptr + (macro_tbl_idx + i) * MACRO_SIZE; 2258 2259 reg = ROM32(bios->data[macroentryptr]); 2260 data = ROM32(bios->data[macroentryptr + 4]); 2261 2262 bios_wr32(bios, reg, data); 2263 } 2264 2265 return 2; 2266} 2267 2268static int 2269init_done(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2270{ 2271 /* 2272 * INIT_DONE opcode: 0x71 ('q') 2273 * 2274 * offset (8 bit): opcode 2275 * 2276 * End the current script 2277 */ 2278 2279 /* mild retval abuse to stop parsing this table */ 2280 return 0; 2281} 2282 2283static int 2284init_resume(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2285{ 2286 /* 2287 * INIT_RESUME opcode: 0x72 ('r') 2288 * 2289 * offset (8 bit): opcode 2290 * 2291 * End the current execute / no-execute condition 2292 */ 2293 2294 if (iexec->execute) 2295 return 1; 2296 2297 iexec->execute = true; 2298 BIOSLOG(bios, "0x%04X: ---- Executing following commands ----\n", offset); 2299 2300 return 1; 2301} 2302 2303static int 2304init_time(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2305{ 2306 /* 2307 * INIT_TIME opcode: 0x74 ('t') 2308 * 2309 * offset (8 bit): opcode 2310 * offset + 1 (16 bit): time 2311 * 2312 * Sleep for "time" microseconds. 2313 */ 2314 2315 unsigned time = ROM16(bios->data[offset + 1]); 2316 2317 if (!iexec->execute) 2318 return 3; 2319 2320 BIOSLOG(bios, "0x%04X: Sleeping for 0x%04X microseconds\n", 2321 offset, time); 2322 2323 if (time < 1000) 2324 udelay(time); 2325 else 2326 msleep((time + 900) / 1000); 2327 2328 return 3; 2329} 2330 2331static int 2332init_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2333{ 2334 /* 2335 * INIT_CONDITION opcode: 0x75 ('u') 2336 * 2337 * offset (8 bit): opcode 2338 * offset + 1 (8 bit): condition number 2339 * 2340 * Check condition "condition number" in the condition table. 2341 * If condition not met skip subsequent opcodes until condition is 2342 * inverted (INIT_NOT), or we hit INIT_RESUME 2343 */ 2344 2345 uint8_t cond = bios->data[offset + 1]; 2346 2347 if (!iexec->execute) 2348 return 2; 2349 2350 BIOSLOG(bios, "0x%04X: Condition: 0x%02X\n", offset, cond); 2351 2352 if (bios_condition_met(bios, offset, cond)) 2353 BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset); 2354 else { 2355 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset); 2356 iexec->execute = false; 2357 } 2358 2359 return 2; 2360} 2361 2362static int 2363init_io_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2364{ 2365 /* 2366 * INIT_IO_CONDITION opcode: 0x76 2367 * 2368 * offset (8 bit): opcode 2369 * offset + 1 (8 bit): condition number 2370 * 2371 * Check condition "condition number" in the io condition table. 2372 * If condition not met skip subsequent opcodes until condition is 2373 * inverted (INIT_NOT), or we hit INIT_RESUME 2374 */ 2375 2376 uint8_t cond = bios->data[offset + 1]; 2377 2378 if (!iexec->execute) 2379 return 2; 2380 2381 BIOSLOG(bios, "0x%04X: IO condition: 0x%02X\n", offset, cond); 2382 2383 if (io_condition_met(bios, offset, cond)) 2384 BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset); 2385 else { 2386 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset); 2387 iexec->execute = false; 2388 } 2389 2390 return 2; 2391} 2392 2393static int 2394init_index_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2395{ 2396 /* 2397 * INIT_INDEX_IO opcode: 0x78 ('x') 2398 * 2399 * offset (8 bit): opcode 2400 * offset + 1 (16 bit): CRTC port 2401 * offset + 3 (8 bit): CRTC index 2402 * offset + 4 (8 bit): mask 2403 * offset + 5 (8 bit): data 2404 * 2405 * Read value at index "CRTC index" on "CRTC port", AND with "mask", 2406 * OR with "data", write-back 2407 */ 2408 2409 uint16_t crtcport = ROM16(bios->data[offset + 1]); 2410 uint8_t crtcindex = bios->data[offset + 3]; 2411 uint8_t mask = bios->data[offset + 4]; 2412 uint8_t data = bios->data[offset + 5]; 2413 uint8_t value; 2414 2415 if (!iexec->execute) 2416 return 6; 2417 2418 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, " 2419 "Data: 0x%02X\n", 2420 offset, crtcport, crtcindex, mask, data); 2421 2422 value = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) | data; 2423 bios_idxprt_wr(bios, crtcport, crtcindex, value); 2424 2425 return 6; 2426} 2427 2428static int 2429init_pll(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2430{ 2431 /* 2432 * INIT_PLL opcode: 0x79 ('y') 2433 * 2434 * offset (8 bit): opcode 2435 * offset + 1 (32 bit): register 2436 * offset + 5 (16 bit): freq 2437 * 2438 * Set PLL register "register" to coefficients for frequency (10kHz) 2439 * "freq" 2440 */ 2441 2442 uint32_t reg = ROM32(bios->data[offset + 1]); 2443 uint16_t freq = ROM16(bios->data[offset + 5]); 2444 2445 if (!iexec->execute) 2446 return 7; 2447 2448 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Freq: %d0kHz\n", offset, reg, freq); 2449 2450 setPLL(bios, reg, freq * 10); 2451 2452 return 7; 2453} 2454 2455static int 2456init_zm_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2457{ 2458 /* 2459 * INIT_ZM_REG opcode: 0x7A ('z') 2460 * 2461 * offset (8 bit): opcode 2462 * offset + 1 (32 bit): register 2463 * offset + 5 (32 bit): value 2464 * 2465 * Assign "value" to "register" 2466 */ 2467 2468 uint32_t reg = ROM32(bios->data[offset + 1]); 2469 uint32_t value = ROM32(bios->data[offset + 5]); 2470 2471 if (!iexec->execute) 2472 return 9; 2473 2474 if (reg == 0x000200) 2475 value |= 1; 2476 2477 bios_wr32(bios, reg, value); 2478 2479 return 9; 2480} 2481 2482static int 2483init_ram_restrict_pll(struct nvbios *bios, uint16_t offset, 2484 struct init_exec *iexec) 2485{ 2486 /* 2487 * INIT_RAM_RESTRICT_PLL opcode: 0x87 ('') 2488 * 2489 * offset (8 bit): opcode 2490 * offset + 1 (8 bit): PLL type 2491 * offset + 2 (32 bit): frequency 0 2492 * 2493 * Uses the RAMCFG strap of PEXTDEV_BOOT as an index into the table at 2494 * ram_restrict_table_ptr. The value read from there is used to select 2495 * a frequency from the table starting at 'frequency 0' to be 2496 * programmed into the PLL corresponding to 'type'. 2497 * 2498 * The PLL limits table on cards using this opcode has a mapping of 2499 * 'type' to the relevant registers. 2500 */ 2501 2502 struct drm_device *dev = bios->dev; 2503 uint32_t strap = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) & 0x0000003c) >> 2; 2504 uint8_t index = bios->data[bios->ram_restrict_tbl_ptr + strap]; 2505 uint8_t type = bios->data[offset + 1]; 2506 uint32_t freq = ROM32(bios->data[offset + 2 + (index * 4)]); 2507 uint8_t *pll_limits = &bios->data[bios->pll_limit_tbl_ptr], *entry; 2508 int len = 2 + bios->ram_restrict_group_count * 4; 2509 int i; 2510 2511 if (!iexec->execute) 2512 return len; 2513 2514 if (!bios->pll_limit_tbl_ptr || (pll_limits[0] & 0xf0) != 0x30) { 2515 NV_ERROR(dev, "PLL limits table not version 3.x\n"); 2516 return len; /* deliberate, allow default clocks to remain */ 2517 } 2518 2519 entry = pll_limits + pll_limits[1]; 2520 for (i = 0; i < pll_limits[3]; i++, entry += pll_limits[2]) { 2521 if (entry[0] == type) { 2522 uint32_t reg = ROM32(entry[3]); 2523 2524 BIOSLOG(bios, "0x%04X: " 2525 "Type %02x Reg 0x%08x Freq %dKHz\n", 2526 offset, type, reg, freq); 2527 2528 setPLL(bios, reg, freq); 2529 return len; 2530 } 2531 } 2532 2533 NV_ERROR(dev, "PLL type 0x%02x not found in PLL limits table", type); 2534 return len; 2535} 2536 2537static int 2538init_8c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2539{ 2540 /* 2541 * INIT_8C opcode: 0x8C ('') 2542 * 2543 * NOP so far.... 2544 * 2545 */ 2546 2547 return 1; 2548} 2549 2550static int 2551init_8d(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2552{ 2553 /* 2554 * INIT_8D opcode: 0x8D ('') 2555 * 2556 * NOP so far.... 2557 * 2558 */ 2559 2560 return 1; 2561} 2562 2563static int 2564init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2565{ 2566 /* 2567 * INIT_GPIO opcode: 0x8E ('') 2568 * 2569 * offset (8 bit): opcode 2570 * 2571 * Loop over all entries in the DCB GPIO table, and initialise 2572 * each GPIO according to various values listed in each entry 2573 */ 2574 2575 const uint32_t nv50_gpio_reg[4] = { 0xe104, 0xe108, 0xe280, 0xe284 }; 2576 const uint32_t nv50_gpio_ctl[2] = { 0xe100, 0xe28c }; 2577 const uint8_t *gpio_table = &bios->data[bios->bdcb.gpio_table_ptr]; 2578 const uint8_t *gpio_entry; 2579 int i; 2580 2581 if (!iexec->execute) 2582 return 1; 2583 2584 if (bios->bdcb.version != 0x40) { 2585 NV_ERROR(bios->dev, "DCB table not version 4.0\n"); 2586 return 0; 2587 } 2588 2589 if (!bios->bdcb.gpio_table_ptr) { 2590 NV_WARN(bios->dev, "Invalid pointer to INIT_8E table\n"); 2591 return 0; 2592 } 2593 2594 gpio_entry = gpio_table + gpio_table[1]; 2595 for (i = 0; i < gpio_table[2]; i++, gpio_entry += gpio_table[3]) { 2596 uint32_t entry = ROM32(gpio_entry[0]), r, s, v; 2597 int line = (entry & 0x0000001f); 2598 2599 BIOSLOG(bios, "0x%04X: Entry: 0x%08X\n", offset, entry); 2600 2601 if ((entry & 0x0000ff00) == 0x0000ff00) 2602 continue; 2603 2604 r = nv50_gpio_reg[line >> 3]; 2605 s = (line & 0x07) << 2; 2606 v = bios_rd32(bios, r) & ~(0x00000003 << s); 2607 if (entry & 0x01000000) 2608 v |= (((entry & 0x60000000) >> 29) ^ 2) << s; 2609 else 2610 v |= (((entry & 0x18000000) >> 27) ^ 2) << s; 2611 bios_wr32(bios, r, v); 2612 2613 r = nv50_gpio_ctl[line >> 4]; 2614 s = (line & 0x0f); 2615 v = bios_rd32(bios, r) & ~(0x00010001 << s); 2616 switch ((entry & 0x06000000) >> 25) { 2617 case 1: 2618 v |= (0x00000001 << s); 2619 break; 2620 case 2: 2621 v |= (0x00010000 << s); 2622 break; 2623 default: 2624 break; 2625 } 2626 bios_wr32(bios, r, v); 2627 } 2628 2629 return 1; 2630} 2631 2632static int 2633init_ram_restrict_zm_reg_group(struct nvbios *bios, uint16_t offset, 2634 struct init_exec *iexec) 2635{ 2636 /* 2637 * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode: 0x8F ('') 2638 * 2639 * offset (8 bit): opcode 2640 * offset + 1 (32 bit): reg 2641 * offset + 5 (8 bit): regincrement 2642 * offset + 6 (8 bit): count 2643 * offset + 7 (32 bit): value 1,1 2644 * ... 2645 * 2646 * Use the RAMCFG strap of PEXTDEV_BOOT as an index into the table at 2647 * ram_restrict_table_ptr. The value read from here is 'n', and 2648 * "value 1,n" gets written to "reg". This repeats "count" times and on 2649 * each iteration 'm', "reg" increases by "regincrement" and 2650 * "value m,n" is used. The extent of n is limited by a number read 2651 * from the 'M' BIT table, herein called "blocklen" 2652 */ 2653 2654 uint32_t reg = ROM32(bios->data[offset + 1]); 2655 uint8_t regincrement = bios->data[offset + 5]; 2656 uint8_t count = bios->data[offset + 6]; 2657 uint32_t strap_ramcfg, data; 2658 /* previously set by 'M' BIT table */ 2659 uint16_t blocklen = bios->ram_restrict_group_count * 4; 2660 int len = 7 + count * blocklen; 2661 uint8_t index; 2662 int i; 2663 2664 2665 if (!iexec->execute) 2666 return len; 2667 2668 if (!blocklen) { 2669 NV_ERROR(bios->dev, 2670 "0x%04X: Zero block length - has the M table " 2671 "been parsed?\n", offset); 2672 return 0; 2673 } 2674 2675 strap_ramcfg = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 2) & 0xf; 2676 index = bios->data[bios->ram_restrict_tbl_ptr + strap_ramcfg]; 2677 2678 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, RegIncrement: 0x%02X, " 2679 "Count: 0x%02X, StrapRamCfg: 0x%02X, Index: 0x%02X\n", 2680 offset, reg, regincrement, count, strap_ramcfg, index); 2681 2682 for (i = 0; i < count; i++) { 2683 data = ROM32(bios->data[offset + 7 + index * 4 + blocklen * i]); 2684 2685 bios_wr32(bios, reg, data); 2686 2687 reg += regincrement; 2688 } 2689 2690 return len; 2691} 2692 2693static int 2694init_copy_zm_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2695{ 2696 /* 2697 * INIT_COPY_ZM_REG opcode: 0x90 ('') 2698 * 2699 * offset (8 bit): opcode 2700 * offset + 1 (32 bit): src reg 2701 * offset + 5 (32 bit): dst reg 2702 * 2703 * Put contents of "src reg" into "dst reg" 2704 */ 2705 2706 uint32_t srcreg = ROM32(bios->data[offset + 1]); 2707 uint32_t dstreg = ROM32(bios->data[offset + 5]); 2708 2709 if (!iexec->execute) 2710 return 9; 2711 2712 bios_wr32(bios, dstreg, bios_rd32(bios, srcreg)); 2713 2714 return 9; 2715} 2716 2717static int 2718init_zm_reg_group_addr_latched(struct nvbios *bios, uint16_t offset, 2719 struct init_exec *iexec) 2720{ 2721 /* 2722 * INIT_ZM_REG_GROUP_ADDRESS_LATCHED opcode: 0x91 ('') 2723 * 2724 * offset (8 bit): opcode 2725 * offset + 1 (32 bit): dst reg 2726 * offset + 5 (8 bit): count 2727 * offset + 6 (32 bit): data 1 2728 * ... 2729 * 2730 * For each of "count" values write "data n" to "dst reg" 2731 */ 2732 2733 uint32_t reg = ROM32(bios->data[offset + 1]); 2734 uint8_t count = bios->data[offset + 5]; 2735 int len = 6 + count * 4; 2736 int i; 2737 2738 if (!iexec->execute) 2739 return len; 2740 2741 for (i = 0; i < count; i++) { 2742 uint32_t data = ROM32(bios->data[offset + 6 + 4 * i]); 2743 bios_wr32(bios, reg, data); 2744 } 2745 2746 return len; 2747} 2748 2749static int 2750init_reserved(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2751{ 2752 /* 2753 * INIT_RESERVED opcode: 0x92 ('') 2754 * 2755 * offset (8 bit): opcode 2756 * 2757 * Seemingly does nothing 2758 */ 2759 2760 return 1; 2761} 2762 2763static int 2764init_96(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2765{ 2766 /* 2767 * INIT_96 opcode: 0x96 ('') 2768 * 2769 * offset (8 bit): opcode 2770 * offset + 1 (32 bit): sreg 2771 * offset + 5 (8 bit): sshift 2772 * offset + 6 (8 bit): smask 2773 * offset + 7 (8 bit): index 2774 * offset + 8 (32 bit): reg 2775 * offset + 12 (32 bit): mask 2776 * offset + 16 (8 bit): shift 2777 * 2778 */ 2779 2780 uint16_t xlatptr = bios->init96_tbl_ptr + (bios->data[offset + 7] * 2); 2781 uint32_t reg = ROM32(bios->data[offset + 8]); 2782 uint32_t mask = ROM32(bios->data[offset + 12]); 2783 uint32_t val; 2784 2785 val = bios_rd32(bios, ROM32(bios->data[offset + 1])); 2786 if (bios->data[offset + 5] < 0x80) 2787 val >>= bios->data[offset + 5]; 2788 else 2789 val <<= (0x100 - bios->data[offset + 5]); 2790 val &= bios->data[offset + 6]; 2791 2792 val = bios->data[ROM16(bios->data[xlatptr]) + val]; 2793 val <<= bios->data[offset + 16]; 2794 2795 if (!iexec->execute) 2796 return 17; 2797 2798 bios_wr32(bios, reg, (bios_rd32(bios, reg) & mask) | val); 2799 return 17; 2800} 2801 2802static int 2803init_97(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2804{ 2805 /* 2806 * INIT_97 opcode: 0x97 ('') 2807 * 2808 * offset (8 bit): opcode 2809 * offset + 1 (32 bit): register 2810 * offset + 5 (32 bit): mask 2811 * offset + 9 (32 bit): value 2812 * 2813 * Adds "value" to "register" preserving the fields specified 2814 * by "mask" 2815 */ 2816 2817 uint32_t reg = ROM32(bios->data[offset + 1]); 2818 uint32_t mask = ROM32(bios->data[offset + 5]); 2819 uint32_t add = ROM32(bios->data[offset + 9]); 2820 uint32_t val; 2821 2822 val = bios_rd32(bios, reg); 2823 val = (val & mask) | ((val + add) & ~mask); 2824 2825 if (!iexec->execute) 2826 return 13; 2827 2828 bios_wr32(bios, reg, val); 2829 return 13; 2830} 2831 2832static int 2833init_auxch(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2834{ 2835 /* 2836 * INIT_AUXCH opcode: 0x98 ('') 2837 * 2838 * offset (8 bit): opcode 2839 * offset + 1 (32 bit): address 2840 * offset + 5 (8 bit): count 2841 * offset + 6 (8 bit): mask 0 2842 * offset + 7 (8 bit): data 0 2843 * ... 2844 * 2845 */ 2846 2847 struct drm_device *dev = bios->dev; 2848 struct nouveau_i2c_chan *auxch; 2849 uint32_t addr = ROM32(bios->data[offset + 1]); 2850 uint8_t count = bios->data[offset + 5]; 2851 int len = 6 + count * 2; 2852 int ret, i; 2853 2854 if (!bios->display.output) { 2855 NV_ERROR(dev, "INIT_AUXCH: no active output\n"); 2856 return 0; 2857 } 2858 2859 auxch = init_i2c_device_find(dev, bios->display.output->i2c_index); 2860 if (!auxch) { 2861 NV_ERROR(dev, "INIT_AUXCH: couldn't get auxch %d\n", 2862 bios->display.output->i2c_index); 2863 return 0; 2864 } 2865 2866 if (!iexec->execute) 2867 return len; 2868 2869 offset += 6; 2870 for (i = 0; i < count; i++, offset += 2) { 2871 uint8_t data; 2872 2873 ret = nouveau_dp_auxch(auxch, 9, addr, &data, 1); 2874 if (ret) { 2875 NV_ERROR(dev, "INIT_AUXCH: rd auxch fail %d\n", ret); 2876 return 0; 2877 } 2878 2879 data &= bios->data[offset + 0]; 2880 data |= bios->data[offset + 1]; 2881 2882 ret = nouveau_dp_auxch(auxch, 8, addr, &data, 1); 2883 if (ret) { 2884 NV_ERROR(dev, "INIT_AUXCH: wr auxch fail %d\n", ret); 2885 return 0; 2886 } 2887 } 2888 2889 return len; 2890} 2891 2892static int 2893init_zm_auxch(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) 2894{ 2895 /* 2896 * INIT_ZM_AUXCH opcode: 0x99 ('') 2897 * 2898 * offset (8 bit): opcode 2899 * offset + 1 (32 bit): address 2900 * offset + 5 (8 bit): count 2901 * offset + 6 (8 bit): data 0 2902 * ... 2903 * 2904 */ 2905 2906 struct drm_device *dev = bios->dev; 2907 struct nouveau_i2c_chan *auxch; 2908 uint32_t addr = ROM32(bios->data[offset + 1]); 2909 uint8_t count = bios->data[offset + 5]; 2910 int len = 6 + count; 2911 int ret, i; 2912 2913 if (!bios->display.output) { 2914 NV_ERROR(dev, "INIT_ZM_AUXCH: no active output\n"); 2915 return 0; 2916 } 2917 2918 auxch = init_i2c_device_find(dev, bios->display.output->i2c_index); 2919 if (!auxch) { 2920 NV_ERROR(dev, "INIT_ZM_AUXCH: couldn't get auxch %d\n", 2921 bios->display.output->i2c_index); 2922 return 0; 2923 } 2924 2925 if (!iexec->execute) 2926 return len; 2927 2928 offset += 6; 2929 for (i = 0; i < count; i++, offset++) { 2930 ret = nouveau_dp_auxch(auxch, 8, addr, &bios->data[offset], 1); 2931 if (ret) { 2932 NV_ERROR(dev, "INIT_ZM_AUXCH: wr auxch fail %d\n", ret); 2933 return 0; 2934 } 2935 } 2936 2937 return len; 2938} 2939 2940static struct init_tbl_entry itbl_entry[] = { 2941 /* command name , id , length , offset , mult , command handler */ 2942 /* INIT_PROG (0x31, 15, 10, 4) removed due to no example of use */ 2943 { "INIT_IO_RESTRICT_PROG" , 0x32, init_io_restrict_prog }, 2944 { "INIT_REPEAT" , 0x33, init_repeat }, 2945 { "INIT_IO_RESTRICT_PLL" , 0x34, init_io_restrict_pll }, 2946 { "INIT_END_REPEAT" , 0x36, init_end_repeat }, 2947 { "INIT_COPY" , 0x37, init_copy }, 2948 { "INIT_NOT" , 0x38, init_not }, 2949 { "INIT_IO_FLAG_CONDITION" , 0x39, init_io_flag_condition }, 2950 { "INIT_INDEX_ADDRESS_LATCHED" , 0x49, init_idx_addr_latched }, 2951 { "INIT_IO_RESTRICT_PLL2" , 0x4A, init_io_restrict_pll2 }, 2952 { "INIT_PLL2" , 0x4B, init_pll2 }, 2953 { "INIT_I2C_BYTE" , 0x4C, init_i2c_byte }, 2954 { "INIT_ZM_I2C_BYTE" , 0x4D, init_zm_i2c_byte }, 2955 { "INIT_ZM_I2C" , 0x4E, init_zm_i2c }, 2956 { "INIT_TMDS" , 0x4F, init_tmds }, 2957 { "INIT_ZM_TMDS_GROUP" , 0x50, init_zm_tmds_group }, 2958 { "INIT_CR_INDEX_ADDRESS_LATCHED" , 0x51, init_cr_idx_adr_latch }, 2959 { "INIT_CR" , 0x52, init_cr }, 2960 { "INIT_ZM_CR" , 0x53, init_zm_cr }, 2961 { "INIT_ZM_CR_GROUP" , 0x54, init_zm_cr_group }, 2962 { "INIT_CONDITION_TIME" , 0x56, init_condition_time }, 2963 { "INIT_ZM_REG_SEQUENCE" , 0x58, init_zm_reg_sequence }, 2964 /* INIT_INDIRECT_REG (0x5A, 7, 0, 0) removed due to no example of use */ 2965 { "INIT_SUB_DIRECT" , 0x5B, init_sub_direct }, 2966 { "INIT_COPY_NV_REG" , 0x5F, init_copy_nv_reg }, 2967 { "INIT_ZM_INDEX_IO" , 0x62, init_zm_index_io }, 2968 { "INIT_COMPUTE_MEM" , 0x63, init_compute_mem }, 2969 { "INIT_RESET" , 0x65, init_reset }, 2970 { "INIT_CONFIGURE_MEM" , 0x66, init_configure_mem }, 2971 { "INIT_CONFIGURE_CLK" , 0x67, init_configure_clk }, 2972 { "INIT_CONFIGURE_PREINIT" , 0x68, init_configure_preinit }, 2973 { "INIT_IO" , 0x69, init_io }, 2974 { "INIT_SUB" , 0x6B, init_sub }, 2975 { "INIT_RAM_CONDITION" , 0x6D, init_ram_condition }, 2976 { "INIT_NV_REG" , 0x6E, init_nv_reg }, 2977 { "INIT_MACRO" , 0x6F, init_macro }, 2978 { "INIT_DONE" , 0x71, init_done }, 2979 { "INIT_RESUME" , 0x72, init_resume }, 2980 /* INIT_RAM_CONDITION2 (0x73, 9, 0, 0) removed due to no example of use */ 2981 { "INIT_TIME" , 0x74, init_time }, 2982 { "INIT_CONDITION" , 0x75, init_condition }, 2983 { "INIT_IO_CONDITION" , 0x76, init_io_condition }, 2984 { "INIT_INDEX_IO" , 0x78, init_index_io }, 2985 { "INIT_PLL" , 0x79, init_pll }, 2986 { "INIT_ZM_REG" , 0x7A, init_zm_reg }, 2987 { "INIT_RAM_RESTRICT_PLL" , 0x87, init_ram_restrict_pll }, 2988 { "INIT_8C" , 0x8C, init_8c }, 2989 { "INIT_8D" , 0x8D, init_8d }, 2990 { "INIT_GPIO" , 0x8E, init_gpio }, 2991 { "INIT_RAM_RESTRICT_ZM_REG_GROUP" , 0x8F, init_ram_restrict_zm_reg_group }, 2992 { "INIT_COPY_ZM_REG" , 0x90, init_copy_zm_reg }, 2993 { "INIT_ZM_REG_GROUP_ADDRESS_LATCHED" , 0x91, init_zm_reg_group_addr_latched }, 2994 { "INIT_RESERVED" , 0x92, init_reserved }, 2995 { "INIT_96" , 0x96, init_96 }, 2996 { "INIT_97" , 0x97, init_97 }, 2997 { "INIT_AUXCH" , 0x98, init_auxch }, 2998 { "INIT_ZM_AUXCH" , 0x99, init_zm_auxch }, 2999 { NULL , 0 , NULL } 3000}; 3001 3002#define MAX_TABLE_OPS 1000 3003 3004static int 3005parse_init_table(struct nvbios *bios, unsigned int offset, 3006 struct init_exec *iexec) 3007{ 3008 /* 3009 * Parses all commands in an init table. 3010 * 3011 * We start out executing all commands found in the init table. Some 3012 * opcodes may change the status of iexec->execute to SKIP, which will 3013 * cause the following opcodes to perform no operation until the value 3014 * is changed back to EXECUTE. 3015 */ 3016 3017 int count = 0, i, res; 3018 uint8_t id; 3019 3020 /* 3021 * Loop until INIT_DONE causes us to break out of the loop 3022 * (or until offset > bios length just in case... ) 3023 * (and no more than MAX_TABLE_OPS iterations, just in case... ) 3024 */ 3025 while ((offset < bios->length) && (count++ < MAX_TABLE_OPS)) { 3026 id = bios->data[offset]; 3027 3028 /* Find matching id in itbl_entry */ 3029 for (i = 0; itbl_entry[i].name && (itbl_entry[i].id != id); i++) 3030 ; 3031 3032 if (itbl_entry[i].name) { 3033 BIOSLOG(bios, "0x%04X: [ (0x%02X) - %s ]\n", 3034 offset, itbl_entry[i].id, itbl_entry[i].name); 3035 3036 /* execute eventual command handler */ 3037 res = (*itbl_entry[i].handler)(bios, offset, iexec); 3038 if (!res) 3039 break; 3040 /* 3041 * Add the offset of the current command including all data 3042 * of that command. The offset will then be pointing on the 3043 * next op code. 3044 */ 3045 offset += res; 3046 } else { 3047 NV_ERROR(bios->dev, 3048 "0x%04X: Init table command not found: " 3049 "0x%02X\n", offset, id); 3050 return -ENOENT; 3051 } 3052 } 3053 3054 if (offset >= bios->length) 3055 NV_WARN(bios->dev, 3056 "Offset 0x%04X greater than known bios image length. " 3057 "Corrupt image?\n", offset); 3058 if (count >= MAX_TABLE_OPS) 3059 NV_WARN(bios->dev, 3060 "More than %d opcodes to a table is unlikely, " 3061 "is the bios image corrupt?\n", MAX_TABLE_OPS); 3062 3063 return 0; 3064} 3065 3066static void 3067parse_init_tables(struct nvbios *bios) 3068{ 3069 /* Loops and calls parse_init_table() for each present table. */ 3070 3071 int i = 0; 3072 uint16_t table; 3073 struct init_exec iexec = {true, false}; 3074 3075 if (bios->old_style_init) { 3076 if (bios->init_script_tbls_ptr) 3077 parse_init_table(bios, bios->init_script_tbls_ptr, &iexec); 3078 if (bios->extra_init_script_tbl_ptr) 3079 parse_init_table(bios, bios->extra_init_script_tbl_ptr, &iexec); 3080 3081 return; 3082 } 3083 3084 while ((table = ROM16(bios->data[bios->init_script_tbls_ptr + i]))) { 3085 NV_INFO(bios->dev, 3086 "Parsing VBIOS init table %d at offset 0x%04X\n", 3087 i / 2, table); 3088 BIOSLOG(bios, "0x%04X: ------ Executing following commands ------\n", table); 3089 3090 parse_init_table(bios, table, &iexec); 3091 i += 2; 3092 } 3093} 3094 3095static uint16_t clkcmptable(struct nvbios *bios, uint16_t clktable, int pxclk) 3096{ 3097 int compare_record_len, i = 0; 3098 uint16_t compareclk, scriptptr = 0; 3099 3100 if (bios->major_version < 5) /* pre BIT */ 3101 compare_record_len = 3; 3102 else 3103 compare_record_len = 4; 3104 3105 do { 3106 compareclk = ROM16(bios->data[clktable + compare_record_len * i]); 3107 if (pxclk >= compareclk * 10) { 3108 if (bios->major_version < 5) { 3109 uint8_t tmdssub = bios->data[clktable + 2 + compare_record_len * i]; 3110 scriptptr = ROM16(bios->data[bios->init_script_tbls_ptr + tmdssub * 2]); 3111 } else 3112 scriptptr = ROM16(bios->data[clktable + 2 + compare_record_len * i]); 3113 break; 3114 } 3115 i++; 3116 } while (compareclk); 3117 3118 return scriptptr; 3119} 3120 3121static void 3122run_digital_op_script(struct drm_device *dev, uint16_t scriptptr, 3123 struct dcb_entry *dcbent, int head, bool dl) 3124{ 3125 struct drm_nouveau_private *dev_priv = dev->dev_private; 3126 struct nvbios *bios = &dev_priv->VBIOS; 3127 struct init_exec iexec = {true, false}; 3128 3129 NV_TRACE(dev, "0x%04X: Parsing digital output script table\n", 3130 scriptptr); 3131 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_44, 3132 head ? NV_CIO_CRE_44_HEADB : NV_CIO_CRE_44_HEADA); 3133 /* note: if dcb entries have been merged, index may be misleading */ 3134 NVWriteVgaCrtc5758(dev, head, 0, dcbent->index); 3135 parse_init_table(bios, scriptptr, &iexec); 3136 3137 nv04_dfp_bind_head(dev, dcbent, head, dl); 3138} 3139 3140static int call_lvds_manufacturer_script(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script) 3141{ 3142 struct drm_nouveau_private *dev_priv = dev->dev_private; 3143 struct nvbios *bios = &dev_priv->VBIOS; 3144 uint8_t sub = bios->data[bios->fp.xlated_entry + script] + (bios->fp.link_c_increment && dcbent->or & OUTPUT_C ? 1 : 0); 3145 uint16_t scriptofs = ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]); 3146 3147 if (!bios->fp.xlated_entry || !sub || !scriptofs) 3148 return -EINVAL; 3149 3150 run_digital_op_script(dev, scriptofs, dcbent, head, bios->fp.dual_link); 3151 3152 if (script == LVDS_PANEL_OFF) { 3153 /* off-on delay in ms */ 3154 msleep(ROM16(bios->data[bios->fp.xlated_entry + 7])); 3155 } 3156#ifdef __powerpc__ 3157 /* Powerbook specific quirks */ 3158 if (script == LVDS_RESET && ((dev->pci_device & 0xffff) == 0x0179 || (dev->pci_device & 0xffff) == 0x0329)) 3159 nv_write_tmds(dev, dcbent->or, 0, 0x02, 0x72); 3160 if ((dev->pci_device & 0xffff) == 0x0179 || (dev->pci_device & 0xffff) == 0x0189 || (dev->pci_device & 0xffff) == 0x0329) { 3161 if (script == LVDS_PANEL_ON) { 3162 bios_wr32(bios, NV_PBUS_DEBUG_DUALHEAD_CTL, bios_rd32(bios, NV_PBUS_DEBUG_DUALHEAD_CTL) | (1 << 31)); 3163 bios_wr32(bios, NV_PCRTC_GPIO_EXT, bios_rd32(bios, NV_PCRTC_GPIO_EXT) | 1); 3164 } 3165 if (script == LVDS_PANEL_OFF) { 3166 bios_wr32(bios, NV_PBUS_DEBUG_DUALHEAD_CTL, bios_rd32(bios, NV_PBUS_DEBUG_DUALHEAD_CTL) & ~(1 << 31)); 3167 bios_wr32(bios, NV_PCRTC_GPIO_EXT, bios_rd32(bios, NV_PCRTC_GPIO_EXT) & ~3); 3168 } 3169 } 3170#endif 3171 3172 return 0; 3173} 3174 3175static int run_lvds_table(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script, int pxclk) 3176{ 3177 /* 3178 * The BIT LVDS table's header has the information to setup the 3179 * necessary registers. Following the standard 4 byte header are: 3180 * A bitmask byte and a dual-link transition pxclk value for use in 3181 * selecting the init script when not using straps; 4 script pointers 3182 * for panel power, selected by output and on/off; and 8 table pointers 3183 * for panel init, the needed one determined by output, and bits in the 3184 * conf byte. These tables are similar to the TMDS tables, consisting 3185 * of a list of pxclks and script pointers. 3186 */ 3187 struct drm_nouveau_private *dev_priv = dev->dev_private; 3188 struct nvbios *bios = &dev_priv->VBIOS; 3189 unsigned int outputset = (dcbent->or == 4) ? 1 : 0; 3190 uint16_t scriptptr = 0, clktable; 3191 uint8_t clktableptr = 0; 3192 3193 /* 3194 * For now we assume version 3.0 table - g80 support will need some 3195 * changes 3196 */ 3197 3198 switch (script) { 3199 case LVDS_INIT: 3200 return -ENOSYS; 3201 case LVDS_BACKLIGHT_ON: 3202 case LVDS_PANEL_ON: 3203 scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 7 + outputset * 2]); 3204 break; 3205 case LVDS_BACKLIGHT_OFF: 3206 case LVDS_PANEL_OFF: 3207 scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 11 + outputset * 2]); 3208 break; 3209 case LVDS_RESET: 3210 if (dcbent->lvdsconf.use_straps_for_mode) { 3211 if (bios->fp.dual_link) 3212 clktableptr += 2; 3213 if (bios->fp.BITbit1) 3214 clktableptr++; 3215 } else { 3216 /* using EDID */ 3217 uint8_t fallback = bios->data[bios->fp.lvdsmanufacturerpointer + 4]; 3218 int fallbackcmpval = (dcbent->or == 4) ? 4 : 1; 3219 3220 if (bios->fp.dual_link) { 3221 clktableptr += 2; 3222 fallbackcmpval *= 2; 3223 } 3224 if (fallbackcmpval & fallback) 3225 clktableptr++; 3226 } 3227 3228 /* adding outputset * 8 may not be correct */ 3229 clktable = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 15 + clktableptr * 2 + outputset * 8]); 3230 if (!clktable) { 3231 NV_ERROR(dev, "Pixel clock comparison table not found\n"); 3232 return -ENOENT; 3233 } 3234 scriptptr = clkcmptable(bios, clktable, pxclk); 3235 } 3236 3237 if (!scriptptr) { 3238 NV_ERROR(dev, "LVDS output init script not found\n"); 3239 return -ENOENT; 3240 } 3241 run_digital_op_script(dev, scriptptr, dcbent, head, bios->fp.dual_link); 3242 3243 return 0; 3244} 3245 3246int call_lvds_script(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script, int pxclk) 3247{ 3248 /* 3249 * LVDS operations are multiplexed in an effort to present a single API 3250 * which works with two vastly differing underlying structures. 3251 * This acts as the demux 3252 */ 3253 3254 struct drm_nouveau_private *dev_priv = dev->dev_private; 3255 struct nvbios *bios = &dev_priv->VBIOS; 3256 uint8_t lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer]; 3257 uint32_t sel_clk_binding, sel_clk; 3258 int ret; 3259 3260 if (bios->fp.last_script_invoc == (script << 1 | head) || !lvds_ver || 3261 (lvds_ver >= 0x30 && script == LVDS_INIT)) 3262 return 0; 3263 3264 if (!bios->fp.lvds_init_run) { 3265 bios->fp.lvds_init_run = true; 3266 call_lvds_script(dev, dcbent, head, LVDS_INIT, pxclk); 3267 } 3268 3269 if (script == LVDS_PANEL_ON && bios->fp.reset_after_pclk_change) 3270 call_lvds_script(dev, dcbent, head, LVDS_RESET, pxclk); 3271 if (script == LVDS_RESET && bios->fp.power_off_for_reset) 3272 call_lvds_script(dev, dcbent, head, LVDS_PANEL_OFF, pxclk); 3273 3274 NV_TRACE(dev, "Calling LVDS script %d:\n", script); 3275 3276 /* don't let script change pll->head binding */ 3277 sel_clk_binding = bios_rd32(bios, NV_PRAMDAC_SEL_CLK) & 0x50000; 3278 3279 if (lvds_ver < 0x30) 3280 ret = call_lvds_manufacturer_script(dev, dcbent, head, script); 3281 else 3282 ret = run_lvds_table(dev, dcbent, head, script, pxclk); 3283 3284 bios->fp.last_script_invoc = (script << 1 | head); 3285 3286 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000; 3287 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding); 3288 /* some scripts set a value in NV_PBUS_POWERCTRL_2 and break video overlay */ 3289 nvWriteMC(dev, NV_PBUS_POWERCTRL_2, 0); 3290 3291 return ret; 3292} 3293 3294struct lvdstableheader { 3295 uint8_t lvds_ver, headerlen, recordlen; 3296}; 3297 3298static int parse_lvds_manufacturer_table_header(struct drm_device *dev, struct nvbios *bios, struct lvdstableheader *lth) 3299{ 3300 /* 3301 * BMP version (0xa) LVDS table has a simple header of version and 3302 * record length. The BIT LVDS table has the typical BIT table header: 3303 * version byte, header length byte, record length byte, and a byte for 3304 * the maximum number of records that can be held in the table. 3305 */ 3306 3307 uint8_t lvds_ver, headerlen, recordlen; 3308 3309 memset(lth, 0, sizeof(struct lvdstableheader)); 3310 3311 if (bios->fp.lvdsmanufacturerpointer == 0x0) { 3312 NV_ERROR(dev, "Pointer to LVDS manufacturer table invalid\n"); 3313 return -EINVAL; 3314 } 3315 3316 lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer]; 3317 3318 switch (lvds_ver) { 3319 case 0x0a: /* pre NV40 */ 3320 headerlen = 2; 3321 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1]; 3322 break; 3323 case 0x30: /* NV4x */ 3324 headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1]; 3325 if (headerlen < 0x1f) { 3326 NV_ERROR(dev, "LVDS table header not understood\n"); 3327 return -EINVAL; 3328 } 3329 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2]; 3330 break; 3331 case 0x40: /* G80/G90 */ 3332 headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1]; 3333 if (headerlen < 0x7) { 3334 NV_ERROR(dev, "LVDS table header not understood\n"); 3335 return -EINVAL; 3336 } 3337 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2]; 3338 break; 3339 default: 3340 NV_ERROR(dev, 3341 "LVDS table revision %d.%d not currently supported\n", 3342 lvds_ver >> 4, lvds_ver & 0xf); 3343 return -ENOSYS; 3344 } 3345 3346 lth->lvds_ver = lvds_ver; 3347 lth->headerlen = headerlen; 3348 lth->recordlen = recordlen; 3349 3350 return 0; 3351} 3352 3353static int 3354get_fp_strap(struct drm_device *dev, struct nvbios *bios) 3355{ 3356 struct drm_nouveau_private *dev_priv = dev->dev_private; 3357 3358 /* 3359 * The fp strap is normally dictated by the "User Strap" in 3360 * PEXTDEV_BOOT_0[20:16], but on BMP cards when bit 2 of the 3361 * Internal_Flags struct at 0x48 is set, the user strap gets overriden 3362 * by the PCI subsystem ID during POST, but not before the previous user 3363 * strap has been committed to CR58 for CR57=0xf on head A, which may be 3364 * read and used instead 3365 */ 3366 3367 if (bios->major_version < 5 && bios->data[0x48] & 0x4) 3368 return NVReadVgaCrtc5758(dev, 0, 0xf) & 0xf; 3369 3370 if (dev_priv->card_type >= NV_50) 3371 return (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 24) & 0xf; 3372 else 3373 return (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 16) & 0xf; 3374} 3375 3376static int parse_fp_mode_table(struct drm_device *dev, struct nvbios *bios) 3377{ 3378 uint8_t *fptable; 3379 uint8_t fptable_ver, headerlen = 0, recordlen, fpentries = 0xf, fpindex; 3380 int ret, ofs, fpstrapping; 3381 struct lvdstableheader lth; 3382 3383 if (bios->fp.fptablepointer == 0x0) { 3384 /* Apple cards don't have the fp table; the laptops use DDC */ 3385 /* The table is also missing on some x86 IGPs */ 3386#ifndef __powerpc__ 3387 NV_ERROR(dev, "Pointer to flat panel table invalid\n"); 3388#endif 3389 bios->pub.digital_min_front_porch = 0x4b; 3390 return 0; 3391 } 3392 3393 fptable = &bios->data[bios->fp.fptablepointer]; 3394 fptable_ver = fptable[0]; 3395 3396 switch (fptable_ver) { 3397 /* 3398 * BMP version 0x5.0x11 BIOSen have version 1 like tables, but no 3399 * version field, and miss one of the spread spectrum/PWM bytes. 3400 * This could affect early GF2Go parts (not seen any appropriate ROMs 3401 * though). Here we assume that a version of 0x05 matches this case 3402 * (combining with a BMP version check would be better), as the 3403 * common case for the panel type field is 0x0005, and that is in 3404 * fact what we are reading the first byte of. 3405 */ 3406 case 0x05: /* some NV10, 11, 15, 16 */ 3407 recordlen = 42; 3408 ofs = -1; 3409 break; 3410 case 0x10: /* some NV15/16, and NV11+ */ 3411 recordlen = 44; 3412 ofs = 0; 3413 break; 3414 case 0x20: /* NV40+ */ 3415 headerlen = fptable[1]; 3416 recordlen = fptable[2]; 3417 fpentries = fptable[3]; 3418 /* 3419 * fptable[4] is the minimum 3420 * RAMDAC_FP_HCRTC -> RAMDAC_FP_HSYNC_START gap 3421 */ 3422 bios->pub.digital_min_front_porch = fptable[4]; 3423 ofs = -7; 3424 break; 3425 default: 3426 NV_ERROR(dev, 3427 "FP table revision %d.%d not currently supported\n", 3428 fptable_ver >> 4, fptable_ver & 0xf); 3429 return -ENOSYS; 3430 } 3431 3432 if (!bios->is_mobile) /* !mobile only needs digital_min_front_porch */ 3433 return 0; 3434 3435 ret = parse_lvds_manufacturer_table_header(dev, bios, <h); 3436 if (ret) 3437 return ret; 3438 3439 if (lth.lvds_ver == 0x30 || lth.lvds_ver == 0x40) { 3440 bios->fp.fpxlatetableptr = bios->fp.lvdsmanufacturerpointer + 3441 lth.headerlen + 1; 3442 bios->fp.xlatwidth = lth.recordlen; 3443 } 3444 if (bios->fp.fpxlatetableptr == 0x0) { 3445 NV_ERROR(dev, "Pointer to flat panel xlat table invalid\n"); 3446 return -EINVAL; 3447 } 3448 3449 fpstrapping = get_fp_strap(dev, bios); 3450 3451 fpindex = bios->data[bios->fp.fpxlatetableptr + 3452 fpstrapping * bios->fp.xlatwidth]; 3453 3454 if (fpindex > fpentries) { 3455 NV_ERROR(dev, "Bad flat panel table index\n"); 3456 return -ENOENT; 3457 } 3458 3459 /* nv4x cards need both a strap value and fpindex of 0xf to use DDC */ 3460 if (lth.lvds_ver > 0x10) 3461 bios->pub.fp_no_ddc = fpstrapping != 0xf || fpindex != 0xf; 3462 3463 /* 3464 * If either the strap or xlated fpindex value are 0xf there is no 3465 * panel using a strap-derived bios mode present. this condition 3466 * includes, but is different from, the DDC panel indicator above 3467 */ 3468 if (fpstrapping == 0xf || fpindex == 0xf) 3469 return 0; 3470 3471 bios->fp.mode_ptr = bios->fp.fptablepointer + headerlen + 3472 recordlen * fpindex + ofs; 3473 3474 NV_TRACE(dev, "BIOS FP mode: %dx%d (%dkHz pixel clock)\n", 3475 ROM16(bios->data[bios->fp.mode_ptr + 11]) + 1, 3476 ROM16(bios->data[bios->fp.mode_ptr + 25]) + 1, 3477 ROM16(bios->data[bios->fp.mode_ptr + 7]) * 10); 3478 3479 return 0; 3480} 3481 3482bool nouveau_bios_fp_mode(struct drm_device *dev, struct drm_display_mode *mode) 3483{ 3484 struct drm_nouveau_private *dev_priv = dev->dev_private; 3485 struct nvbios *bios = &dev_priv->VBIOS; 3486 uint8_t *mode_entry = &bios->data[bios->fp.mode_ptr]; 3487 3488 if (!mode) /* just checking whether we can produce a mode */ 3489 return bios->fp.mode_ptr; 3490 3491 memset(mode, 0, sizeof(struct drm_display_mode)); 3492 /* 3493 * For version 1.0 (version in byte 0): 3494 * bytes 1-2 are "panel type", including bits on whether Colour/mono, 3495 * single/dual link, and type (TFT etc.) 3496 * bytes 3-6 are bits per colour in RGBX 3497 */ 3498 mode->clock = ROM16(mode_entry[7]) * 10; 3499 /* bytes 9-10 is HActive */ 3500 mode->hdisplay = ROM16(mode_entry[11]) + 1; 3501 /* 3502 * bytes 13-14 is HValid Start 3503 * bytes 15-16 is HValid End 3504 */ 3505 mode->hsync_start = ROM16(mode_entry[17]) + 1; 3506 mode->hsync_end = ROM16(mode_entry[19]) + 1; 3507 mode->htotal = ROM16(mode_entry[21]) + 1; 3508 /* bytes 23-24, 27-30 similarly, but vertical */ 3509 mode->vdisplay = ROM16(mode_entry[25]) + 1; 3510 mode->vsync_start = ROM16(mode_entry[31]) + 1; 3511 mode->vsync_end = ROM16(mode_entry[33]) + 1; 3512 mode->vtotal = ROM16(mode_entry[35]) + 1; 3513 mode->flags |= (mode_entry[37] & 0x10) ? 3514 DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC; 3515 mode->flags |= (mode_entry[37] & 0x1) ? 3516 DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC; 3517 /* 3518 * bytes 38-39 relate to spread spectrum settings 3519 * bytes 40-43 are something to do with PWM 3520 */ 3521 3522 mode->status = MODE_OK; 3523 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; 3524 drm_mode_set_name(mode); 3525 return bios->fp.mode_ptr; 3526} 3527 3528int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, bool *if_is_24bit) 3529{ 3530 /* 3531 * The LVDS table header is (mostly) described in 3532 * parse_lvds_manufacturer_table_header(): the BIT header additionally 3533 * contains the dual-link transition pxclk (in 10s kHz), at byte 5 - if 3534 * straps are not being used for the panel, this specifies the frequency 3535 * at which modes should be set up in the dual link style. 3536 * 3537 * Following the header, the BMP (ver 0xa) table has several records, 3538 * indexed by a seperate xlat table, indexed in turn by the fp strap in 3539 * EXTDEV_BOOT. Each record had a config byte, followed by 6 script 3540 * numbers for use by INIT_SUB which controlled panel init and power, 3541 * and finally a dword of ms to sleep between power off and on 3542 * operations. 3543 * 3544 * In the BIT versions, the table following the header serves as an 3545 * integrated config and xlat table: the records in the table are 3546 * indexed by the FP strap nibble in EXTDEV_BOOT, and each record has 3547 * two bytes - the first as a config byte, the second for indexing the 3548 * fp mode table pointed to by the BIT 'D' table 3549 * 3550 * DDC is not used until after card init, so selecting the correct table 3551 * entry and setting the dual link flag for EDID equipped panels, 3552 * requiring tests against the native-mode pixel clock, cannot be done 3553 * until later, when this function should be called with non-zero pxclk 3554 */ 3555 struct drm_nouveau_private *dev_priv = dev->dev_private; 3556 struct nvbios *bios = &dev_priv->VBIOS; 3557 int fpstrapping = get_fp_strap(dev, bios), lvdsmanufacturerindex = 0; 3558 struct lvdstableheader lth; 3559 uint16_t lvdsofs; 3560 int ret, chip_version = bios->pub.chip_version; 3561 3562 ret = parse_lvds_manufacturer_table_header(dev, bios, <h); 3563 if (ret) 3564 return ret; 3565 3566 switch (lth.lvds_ver) { 3567 case 0x0a: /* pre NV40 */ 3568 lvdsmanufacturerindex = bios->data[ 3569 bios->fp.fpxlatemanufacturertableptr + 3570 fpstrapping]; 3571 3572 /* we're done if this isn't the EDID panel case */ 3573 if (!pxclk) 3574 break; 3575 3576 if (chip_version < 0x25) { 3577 /* nv17 behaviour 3578 * 3579 * It seems the old style lvds script pointer is reused 3580 * to select 18/24 bit colour depth for EDID panels. 3581 */ 3582 lvdsmanufacturerindex = 3583 (bios->legacy.lvds_single_a_script_ptr & 1) ? 3584 2 : 0; 3585 if (pxclk >= bios->fp.duallink_transition_clk) 3586 lvdsmanufacturerindex++; 3587 } else if (chip_version < 0x30) { 3588 /* nv28 behaviour (off-chip encoder) 3589 * 3590 * nv28 does a complex dance of first using byte 121 of 3591 * the EDID to choose the lvdsmanufacturerindex, then 3592 * later attempting to match the EDID manufacturer and 3593 * product IDs in a table (signature 'pidt' (panel id 3594 * table?)), setting an lvdsmanufacturerindex of 0 and 3595 * an fp strap of the match index (or 0xf if none) 3596 */ 3597 lvdsmanufacturerindex = 0; 3598 } else { 3599 /* nv31, nv34 behaviour */ 3600 lvdsmanufacturerindex = 0; 3601 if (pxclk >= bios->fp.duallink_transition_clk) 3602 lvdsmanufacturerindex = 2; 3603 if (pxclk >= 140000) 3604 lvdsmanufacturerindex = 3; 3605 } 3606 3607 /* 3608 * nvidia set the high nibble of (cr57=f, cr58) to 3609 * lvdsmanufacturerindex in this case; we don't 3610 */ 3611 break; 3612 case 0x30: /* NV4x */ 3613 case 0x40: /* G80/G90 */ 3614 lvdsmanufacturerindex = fpstrapping; 3615 break; 3616 default: 3617 NV_ERROR(dev, "LVDS table revision not currently supported\n"); 3618 return -ENOSYS; 3619 } 3620 3621 lvdsofs = bios->fp.xlated_entry = bios->fp.lvdsmanufacturerpointer + lth.headerlen + lth.recordlen * lvdsmanufacturerindex; 3622 switch (lth.lvds_ver) { 3623 case 0x0a: 3624 bios->fp.power_off_for_reset = bios->data[lvdsofs] & 1; 3625 bios->fp.reset_after_pclk_change = bios->data[lvdsofs] & 2; 3626 bios->fp.dual_link = bios->data[lvdsofs] & 4; 3627 bios->fp.link_c_increment = bios->data[lvdsofs] & 8; 3628 *if_is_24bit = bios->data[lvdsofs] & 16; 3629 break; 3630 case 0x30: 3631 /* 3632 * My money would be on there being a 24 bit interface bit in 3633 * this table, but I have no example of a laptop bios with a 3634 * 24 bit panel to confirm that. Hence we shout loudly if any 3635 * bit other than bit 0 is set (I've not even seen bit 1) 3636 */ 3637 if (bios->data[lvdsofs] > 1) 3638 NV_ERROR(dev, 3639 "You have a very unusual laptop display; please report it\n"); 3640 /* 3641 * No sign of the "power off for reset" or "reset for panel 3642 * on" bits, but it's safer to assume we should 3643 */ 3644 bios->fp.power_off_for_reset = true; 3645 bios->fp.reset_after_pclk_change = true; 3646 /* 3647 * It's ok lvdsofs is wrong for nv4x edid case; dual_link is 3648 * over-written, and BITbit1 isn't used 3649 */ 3650 bios->fp.dual_link = bios->data[lvdsofs] & 1; 3651 bios->fp.BITbit1 = bios->data[lvdsofs] & 2; 3652 bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5]) * 10; 3653 break; 3654 case 0x40: 3655 bios->fp.dual_link = bios->data[lvdsofs] & 1; 3656 bios->fp.if_is_24bit = bios->data[lvdsofs] & 2; 3657 bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4]; 3658 bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5]) * 10; 3659 break; 3660 } 3661 3662 /* set dual_link flag for EDID case */ 3663 if (pxclk && (chip_version < 0x25 || chip_version > 0x28)) 3664 bios->fp.dual_link = (pxclk >= bios->fp.duallink_transition_clk); 3665 3666 *dl = bios->fp.dual_link; 3667 3668 return 0; 3669} 3670 3671static uint8_t * 3672bios_output_config_match(struct drm_device *dev, struct dcb_entry *dcbent, 3673 uint16_t record, int record_len, int record_nr) 3674{ 3675 struct drm_nouveau_private *dev_priv = dev->dev_private; 3676 struct nvbios *bios = &dev_priv->VBIOS; 3677 uint32_t entry; 3678 uint16_t table; 3679 int i, v; 3680 3681 for (i = 0; i < record_nr; i++, record += record_len) { 3682 table = ROM16(bios->data[record]); 3683 if (!table) 3684 continue; 3685 entry = ROM32(bios->data[table]); 3686 3687 v = (entry & 0x000f0000) >> 16; 3688 if (!(v & dcbent->or)) 3689 continue; 3690 3691 v = (entry & 0x000000f0) >> 4; 3692 if (v != dcbent->location) 3693 continue; 3694 3695 v = (entry & 0x0000000f); 3696 if (v != dcbent->type) 3697 continue; 3698 3699 return &bios->data[table]; 3700 } 3701 3702 return NULL; 3703} 3704 3705void * 3706nouveau_bios_dp_table(struct drm_device *dev, struct dcb_entry *dcbent, 3707 int *length) 3708{ 3709 struct drm_nouveau_private *dev_priv = dev->dev_private; 3710 struct nvbios *bios = &dev_priv->VBIOS; 3711 uint8_t *table; 3712 3713 if (!bios->display.dp_table_ptr) { 3714 NV_ERROR(dev, "No pointer to DisplayPort table\n"); 3715 return NULL; 3716 } 3717 table = &bios->data[bios->display.dp_table_ptr]; 3718 3719 if (table[0] != 0x21) { 3720 NV_ERROR(dev, "DisplayPort table version 0x%02x unknown\n", 3721 table[0]); 3722 return NULL; 3723 } 3724 3725 *length = table[4]; 3726 return bios_output_config_match(dev, dcbent, 3727 bios->display.dp_table_ptr + table[1], 3728 table[2], table[3]); 3729} 3730 3731int 3732nouveau_bios_run_display_table(struct drm_device *dev, struct dcb_entry *dcbent, 3733 uint32_t sub, int pxclk) 3734{ 3735 /* 3736 * The display script table is located by the BIT 'U' table. 3737 * 3738 * It contains an array of pointers to various tables describing 3739 * a particular output type. The first 32-bits of the output 3740 * tables contains similar information to a DCB entry, and is 3741 * used to decide whether that particular table is suitable for 3742 * the output you want to access. 3743 * 3744 * The "record header length" field here seems to indicate the 3745 * offset of the first configuration entry in the output tables. 3746 * This is 10 on most cards I've seen, but 12 has been witnessed 3747 * on DP cards, and there's another script pointer within the 3748 * header. 3749 * 3750 * offset + 0 ( 8 bits): version 3751 * offset + 1 ( 8 bits): header length 3752 * offset + 2 ( 8 bits): record length 3753 * offset + 3 ( 8 bits): number of records 3754 * offset + 4 ( 8 bits): record header length 3755 * offset + 5 (16 bits): pointer to first output script table 3756 */ 3757 3758 struct drm_nouveau_private *dev_priv = dev->dev_private; 3759 struct init_exec iexec = {true, false}; 3760 struct nvbios *bios = &dev_priv->VBIOS; 3761 uint8_t *table = &bios->data[bios->display.script_table_ptr]; 3762 uint8_t *otable = NULL; 3763 uint16_t script; 3764 int i = 0; 3765 3766 if (!bios->display.script_table_ptr) { 3767 NV_ERROR(dev, "No pointer to output script table\n"); 3768 return 1; 3769 } 3770 3771 /* 3772 * Nothing useful has been in any of the pre-2.0 tables I've seen, 3773 * so until they are, we really don't need to care. 3774 */ 3775 if (table[0] < 0x20) 3776 return 1; 3777 3778 if (table[0] != 0x20 && table[0] != 0x21) { 3779 NV_ERROR(dev, "Output script table version 0x%02x unknown\n", 3780 table[0]); 3781 return 1; 3782 } 3783 3784 /* 3785 * The output script tables describing a particular output type 3786 * look as follows: 3787 * 3788 * offset + 0 (32 bits): output this table matches (hash of DCB) 3789 * offset + 4 ( 8 bits): unknown 3790 * offset + 5 ( 8 bits): number of configurations 3791 * offset + 6 (16 bits): pointer to some script 3792 * offset + 8 (16 bits): pointer to some script 3793 * 3794 * headerlen == 10 3795 * offset + 10 : configuration 0 3796 * 3797 * headerlen == 12 3798 * offset + 10 : pointer to some script 3799 * offset + 12 : configuration 0 3800 * 3801 * Each config entry is as follows: 3802 * 3803 * offset + 0 (16 bits): unknown, assumed to be a match value 3804 * offset + 2 (16 bits): pointer to script table (clock set?) 3805 * offset + 4 (16 bits): pointer to script table (reset?) 3806 * 3807 * There doesn't appear to be a count value to say how many 3808 * entries exist in each script table, instead, a 0 value in 3809 * the first 16-bit word seems to indicate both the end of the 3810 * list and the default entry. The second 16-bit word in the 3811 * script tables is a pointer to the script to execute. 3812 */ 3813 3814 NV_DEBUG_KMS(dev, "Searching for output entry for %d %d %d\n", 3815 dcbent->type, dcbent->location, dcbent->or); 3816 otable = bios_output_config_match(dev, dcbent, table[1] + 3817 bios->display.script_table_ptr, 3818 table[2], table[3]); 3819 if (!otable) { 3820 NV_ERROR(dev, "Couldn't find matching output script table\n"); 3821 return 1; 3822 } 3823 3824 if (pxclk < -2 || pxclk > 0) { 3825 /* Try to find matching script table entry */ 3826 for (i = 0; i < otable[5]; i++) { 3827 if (ROM16(otable[table[4] + i*6]) == sub) 3828 break; 3829 } 3830 3831 if (i == otable[5]) { 3832 NV_ERROR(dev, "Table 0x%04x not found for %d/%d, " 3833 "using first\n", 3834 sub, dcbent->type, dcbent->or); 3835 i = 0; 3836 } 3837 } 3838 3839 bios->display.output = dcbent; 3840 3841 if (pxclk == 0) { 3842 script = ROM16(otable[6]); 3843 if (!script) { 3844 NV_DEBUG_KMS(dev, "output script 0 not found\n"); 3845 return 1; 3846 } 3847 3848 NV_TRACE(dev, "0x%04X: parsing output script 0\n", script); 3849 parse_init_table(bios, script, &iexec); 3850 } else 3851 if (pxclk == -1) { 3852 script = ROM16(otable[8]); 3853 if (!script) { 3854 NV_DEBUG_KMS(dev, "output script 1 not found\n"); 3855 return 1; 3856 } 3857 3858 NV_TRACE(dev, "0x%04X: parsing output script 1\n", script); 3859 parse_init_table(bios, script, &iexec); 3860 } else 3861 if (pxclk == -2) { 3862 if (table[4] >= 12) 3863 script = ROM16(otable[10]); 3864 else 3865 script = 0; 3866 if (!script) { 3867 NV_DEBUG_KMS(dev, "output script 2 not found\n"); 3868 return 1; 3869 } 3870 3871 NV_TRACE(dev, "0x%04X: parsing output script 2\n", script); 3872 parse_init_table(bios, script, &iexec); 3873 } else 3874 if (pxclk > 0) { 3875 script = ROM16(otable[table[4] + i*6 + 2]); 3876 if (script) 3877 script = clkcmptable(bios, script, pxclk); 3878 if (!script) { 3879 NV_ERROR(dev, "clock script 0 not found\n"); 3880 return 1; 3881 } 3882 3883 NV_TRACE(dev, "0x%04X: parsing clock script 0\n", script); 3884 parse_init_table(bios, script, &iexec); 3885 } else 3886 if (pxclk < 0) { 3887 script = ROM16(otable[table[4] + i*6 + 4]); 3888 if (script) 3889 script = clkcmptable(bios, script, -pxclk); 3890 if (!script) { 3891 NV_DEBUG_KMS(dev, "clock script 1 not found\n"); 3892 return 1; 3893 } 3894 3895 NV_TRACE(dev, "0x%04X: parsing clock script 1\n", script); 3896 parse_init_table(bios, script, &iexec); 3897 } 3898 3899 return 0; 3900} 3901 3902 3903int run_tmds_table(struct drm_device *dev, struct dcb_entry *dcbent, int head, int pxclk) 3904{ 3905 /* 3906 * the pxclk parameter is in kHz 3907 * 3908 * This runs the TMDS regs setting code found on BIT bios cards 3909 * 3910 * For ffs(or) == 1 use the first table, for ffs(or) == 2 and 3911 * ffs(or) == 3, use the second. 3912 */ 3913 3914 struct drm_nouveau_private *dev_priv = dev->dev_private; 3915 struct nvbios *bios = &dev_priv->VBIOS; 3916 int cv = bios->pub.chip_version; 3917 uint16_t clktable = 0, scriptptr; 3918 uint32_t sel_clk_binding, sel_clk; 3919 3920 /* pre-nv17 off-chip tmds uses scripts, post nv17 doesn't */ 3921 if (cv >= 0x17 && cv != 0x1a && cv != 0x20 && 3922 dcbent->location != DCB_LOC_ON_CHIP) 3923 return 0; 3924 3925 switch (ffs(dcbent->or)) { 3926 case 1: 3927 clktable = bios->tmds.output0_script_ptr; 3928 break; 3929 case 2: 3930 case 3: 3931 clktable = bios->tmds.output1_script_ptr; 3932 break; 3933 } 3934 3935 if (!clktable) { 3936 NV_ERROR(dev, "Pixel clock comparison table not found\n"); 3937 return -EINVAL; 3938 } 3939 3940 scriptptr = clkcmptable(bios, clktable, pxclk); 3941 3942 if (!scriptptr) { 3943 NV_ERROR(dev, "TMDS output init script not found\n"); 3944 return -ENOENT; 3945 } 3946 3947 /* don't let script change pll->head binding */ 3948 sel_clk_binding = bios_rd32(bios, NV_PRAMDAC_SEL_CLK) & 0x50000; 3949 run_digital_op_script(dev, scriptptr, dcbent, head, pxclk >= 165000); 3950 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000; 3951 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding); 3952 3953 return 0; 3954} 3955 3956int get_pll_limits(struct drm_device *dev, uint32_t limit_match, struct pll_lims *pll_lim) 3957{ 3958 /* 3959 * PLL limits table 3960 * 3961 * Version 0x10: NV30, NV31 3962 * One byte header (version), one record of 24 bytes 3963 * Version 0x11: NV36 - Not implemented 3964 * Seems to have same record style as 0x10, but 3 records rather than 1 3965 * Version 0x20: Found on Geforce 6 cards 3966 * Trivial 4 byte BIT header. 31 (0x1f) byte record length 3967 * Version 0x21: Found on Geforce 7, 8 and some Geforce 6 cards 3968 * 5 byte header, fifth byte of unknown purpose. 35 (0x23) byte record 3969 * length in general, some (integrated) have an extra configuration byte 3970 * Version 0x30: Found on Geforce 8, separates the register mapping 3971 * from the limits tables. 3972 */ 3973 3974 struct drm_nouveau_private *dev_priv = dev->dev_private; 3975 struct nvbios *bios = &dev_priv->VBIOS; 3976 int cv = bios->pub.chip_version, pllindex = 0; 3977 uint8_t pll_lim_ver = 0, headerlen = 0, recordlen = 0, entries = 0; 3978 uint32_t crystal_strap_mask, crystal_straps; 3979 3980 if (!bios->pll_limit_tbl_ptr) { 3981 if (cv == 0x30 || cv == 0x31 || cv == 0x35 || cv == 0x36 || 3982 cv >= 0x40) { 3983 NV_ERROR(dev, "Pointer to PLL limits table invalid\n"); 3984 return -EINVAL; 3985 } 3986 } else 3987 pll_lim_ver = bios->data[bios->pll_limit_tbl_ptr]; 3988 3989 crystal_strap_mask = 1 << 6; 3990 /* open coded dev->twoHeads test */ 3991 if (cv > 0x10 && cv != 0x15 && cv != 0x1a && cv != 0x20) 3992 crystal_strap_mask |= 1 << 22; 3993 crystal_straps = nvReadEXTDEV(dev, NV_PEXTDEV_BOOT_0) & 3994 crystal_strap_mask; 3995 3996 switch (pll_lim_ver) { 3997 /* 3998 * We use version 0 to indicate a pre limit table bios (single stage 3999 * pll) and load the hard coded limits instead. 4000 */ 4001 case 0: 4002 break; 4003 case 0x10: 4004 case 0x11: 4005 /* 4006 * Strictly v0x11 has 3 entries, but the last two don't seem 4007 * to get used. 4008 */ 4009 headerlen = 1; 4010 recordlen = 0x18; 4011 entries = 1; 4012 pllindex = 0; 4013 break; 4014 case 0x20: 4015 case 0x21: 4016 case 0x30: 4017 case 0x40: 4018 headerlen = bios->data[bios->pll_limit_tbl_ptr + 1]; 4019 recordlen = bios->data[bios->pll_limit_tbl_ptr + 2]; 4020 entries = bios->data[bios->pll_limit_tbl_ptr + 3]; 4021 break; 4022 default: 4023 NV_ERROR(dev, "PLL limits table revision 0x%X not currently " 4024 "supported\n", pll_lim_ver); 4025 return -ENOSYS; 4026 } 4027 4028 /* initialize all members to zero */ 4029 memset(pll_lim, 0, sizeof(struct pll_lims)); 4030 4031 if (pll_lim_ver == 0x10 || pll_lim_ver == 0x11) { 4032 uint8_t *pll_rec = &bios->data[bios->pll_limit_tbl_ptr + headerlen + recordlen * pllindex]; 4033 4034 pll_lim->vco1.minfreq = ROM32(pll_rec[0]); 4035 pll_lim->vco1.maxfreq = ROM32(pll_rec[4]); 4036 pll_lim->vco2.minfreq = ROM32(pll_rec[8]); 4037 pll_lim->vco2.maxfreq = ROM32(pll_rec[12]); 4038 pll_lim->vco1.min_inputfreq = ROM32(pll_rec[16]); 4039 pll_lim->vco2.min_inputfreq = ROM32(pll_rec[20]); 4040 pll_lim->vco1.max_inputfreq = pll_lim->vco2.max_inputfreq = INT_MAX; 4041 4042 /* these values taken from nv30/31/36 */ 4043 pll_lim->vco1.min_n = 0x1; 4044 if (cv == 0x36) 4045 pll_lim->vco1.min_n = 0x5; 4046 pll_lim->vco1.max_n = 0xff; 4047 pll_lim->vco1.min_m = 0x1; 4048 pll_lim->vco1.max_m = 0xd; 4049 pll_lim->vco2.min_n = 0x4; 4050 /* 4051 * On nv30, 31, 36 (i.e. all cards with two stage PLLs with this 4052 * table version (apart from nv35)), N2 is compared to 4053 * maxN2 (0x46) and 10 * maxM2 (0x4), so set maxN2 to 0x28 and 4054 * save a comparison 4055 */ 4056 pll_lim->vco2.max_n = 0x28; 4057 if (cv == 0x30 || cv == 0x35) 4058 /* only 5 bits available for N2 on nv30/35 */ 4059 pll_lim->vco2.max_n = 0x1f; 4060 pll_lim->vco2.min_m = 0x1; 4061 pll_lim->vco2.max_m = 0x4; 4062 pll_lim->max_log2p = 0x7; 4063 pll_lim->max_usable_log2p = 0x6; 4064 } else if (pll_lim_ver == 0x20 || pll_lim_ver == 0x21) { 4065 uint16_t plloffs = bios->pll_limit_tbl_ptr + headerlen; 4066 uint32_t reg = 0; /* default match */ 4067 uint8_t *pll_rec; 4068 int i; 4069 4070 /* 4071 * First entry is default match, if nothing better. warn if 4072 * reg field nonzero 4073 */ 4074 if (ROM32(bios->data[plloffs])) 4075 NV_WARN(dev, "Default PLL limit entry has non-zero " 4076 "register field\n"); 4077 4078 if (limit_match > MAX_PLL_TYPES) 4079 /* we've been passed a reg as the match */ 4080 reg = limit_match; 4081 else /* limit match is a pll type */ 4082 for (i = 1; i < entries && !reg; i++) { 4083 uint32_t cmpreg = ROM32(bios->data[plloffs + recordlen * i]); 4084 4085 if (limit_match == NVPLL && 4086 (cmpreg == NV_PRAMDAC_NVPLL_COEFF || cmpreg == 0x4000)) 4087 reg = cmpreg; 4088 if (limit_match == MPLL && 4089 (cmpreg == NV_PRAMDAC_MPLL_COEFF || cmpreg == 0x4020)) 4090 reg = cmpreg; 4091 if (limit_match == VPLL1 && 4092 (cmpreg == NV_PRAMDAC_VPLL_COEFF || cmpreg == 0x4010)) 4093 reg = cmpreg; 4094 if (limit_match == VPLL2 && 4095 (cmpreg == NV_RAMDAC_VPLL2 || cmpreg == 0x4018)) 4096 reg = cmpreg; 4097 } 4098 4099 for (i = 1; i < entries; i++) 4100 if (ROM32(bios->data[plloffs + recordlen * i]) == reg) { 4101 pllindex = i; 4102 break; 4103 } 4104 4105 pll_rec = &bios->data[plloffs + recordlen * pllindex]; 4106 4107 BIOSLOG(bios, "Loading PLL limits for reg 0x%08x\n", 4108 pllindex ? reg : 0); 4109 4110 /* 4111 * Frequencies are stored in tables in MHz, kHz are more 4112 * useful, so we convert. 4113 */ 4114 4115 /* What output frequencies can each VCO generate? */ 4116 pll_lim->vco1.minfreq = ROM16(pll_rec[4]) * 1000; 4117 pll_lim->vco1.maxfreq = ROM16(pll_rec[6]) * 1000; 4118 pll_lim->vco2.minfreq = ROM16(pll_rec[8]) * 1000; 4119 pll_lim->vco2.maxfreq = ROM16(pll_rec[10]) * 1000; 4120 4121 /* What input frequencies they accept (past the m-divider)? */ 4122 pll_lim->vco1.min_inputfreq = ROM16(pll_rec[12]) * 1000; 4123 pll_lim->vco2.min_inputfreq = ROM16(pll_rec[14]) * 1000; 4124 pll_lim->vco1.max_inputfreq = ROM16(pll_rec[16]) * 1000; 4125 pll_lim->vco2.max_inputfreq = ROM16(pll_rec[18]) * 1000; 4126 4127 /* What values are accepted as multiplier and divider? */ 4128 pll_lim->vco1.min_n = pll_rec[20]; 4129 pll_lim->vco1.max_n = pll_rec[21]; 4130 pll_lim->vco1.min_m = pll_rec[22]; 4131 pll_lim->vco1.max_m = pll_rec[23]; 4132 pll_lim->vco2.min_n = pll_rec[24]; 4133 pll_lim->vco2.max_n = pll_rec[25]; 4134 pll_lim->vco2.min_m = pll_rec[26]; 4135 pll_lim->vco2.max_m = pll_rec[27]; 4136 4137 pll_lim->max_usable_log2p = pll_lim->max_log2p = pll_rec[29]; 4138 if (pll_lim->max_log2p > 0x7) 4139 /* pll decoding in nv_hw.c assumes never > 7 */ 4140 NV_WARN(dev, "Max log2 P value greater than 7 (%d)\n", 4141 pll_lim->max_log2p); 4142 if (cv < 0x60) 4143 pll_lim->max_usable_log2p = 0x6; 4144 pll_lim->log2p_bias = pll_rec[30]; 4145 4146 if (recordlen > 0x22) 4147 pll_lim->refclk = ROM32(pll_rec[31]); 4148 4149 if (recordlen > 0x23 && pll_rec[35]) 4150 NV_WARN(dev, 4151 "Bits set in PLL configuration byte (%x)\n", 4152 pll_rec[35]); 4153 4154 /* C51 special not seen elsewhere */ 4155 if (cv == 0x51 && !pll_lim->refclk) { 4156 uint32_t sel_clk = bios_rd32(bios, NV_PRAMDAC_SEL_CLK); 4157 4158 if (((limit_match == NV_PRAMDAC_VPLL_COEFF || limit_match == VPLL1) && sel_clk & 0x20) || 4159 ((limit_match == NV_RAMDAC_VPLL2 || limit_match == VPLL2) && sel_clk & 0x80)) { 4160 if (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_CHIP_ID_INDEX) < 0xa3) 4161 pll_lim->refclk = 200000; 4162 else 4163 pll_lim->refclk = 25000; 4164 } 4165 } 4166 } else if (pll_lim_ver == 0x30) { /* ver 0x30 */ 4167 uint8_t *entry = &bios->data[bios->pll_limit_tbl_ptr + headerlen]; 4168 uint8_t *record = NULL; 4169 int i; 4170 4171 BIOSLOG(bios, "Loading PLL limits for register 0x%08x\n", 4172 limit_match); 4173 4174 for (i = 0; i < entries; i++, entry += recordlen) { 4175 if (ROM32(entry[3]) == limit_match) { 4176 record = &bios->data[ROM16(entry[1])]; 4177 break; 4178 } 4179 } 4180 4181 if (!record) { 4182 NV_ERROR(dev, "Register 0x%08x not found in PLL " 4183 "limits table", limit_match); 4184 return -ENOENT; 4185 } 4186 4187 pll_lim->vco1.minfreq = ROM16(record[0]) * 1000; 4188 pll_lim->vco1.maxfreq = ROM16(record[2]) * 1000; 4189 pll_lim->vco2.minfreq = ROM16(record[4]) * 1000; 4190 pll_lim->vco2.maxfreq = ROM16(record[6]) * 1000; 4191 pll_lim->vco1.min_inputfreq = ROM16(record[8]) * 1000; 4192 pll_lim->vco2.min_inputfreq = ROM16(record[10]) * 1000; 4193 pll_lim->vco1.max_inputfreq = ROM16(record[12]) * 1000; 4194 pll_lim->vco2.max_inputfreq = ROM16(record[14]) * 1000; 4195 pll_lim->vco1.min_n = record[16]; 4196 pll_lim->vco1.max_n = record[17]; 4197 pll_lim->vco1.min_m = record[18]; 4198 pll_lim->vco1.max_m = record[19]; 4199 pll_lim->vco2.min_n = record[20]; 4200 pll_lim->vco2.max_n = record[21]; 4201 pll_lim->vco2.min_m = record[22]; 4202 pll_lim->vco2.max_m = record[23]; 4203 pll_lim->max_usable_log2p = pll_lim->max_log2p = record[25]; 4204 pll_lim->log2p_bias = record[27]; 4205 pll_lim->refclk = ROM32(record[28]); 4206 } else if (pll_lim_ver) { /* ver 0x40 */ 4207 uint8_t *entry = &bios->data[bios->pll_limit_tbl_ptr + headerlen]; 4208 uint8_t *record = NULL; 4209 int i; 4210 4211 BIOSLOG(bios, "Loading PLL limits for register 0x%08x\n", 4212 limit_match); 4213 4214 for (i = 0; i < entries; i++, entry += recordlen) { 4215 if (ROM32(entry[3]) == limit_match) { 4216 record = &bios->data[ROM16(entry[1])]; 4217 break; 4218 } 4219 } 4220 4221 if (!record) { 4222 NV_ERROR(dev, "Register 0x%08x not found in PLL " 4223 "limits table", limit_match); 4224 return -ENOENT; 4225 } 4226 4227 pll_lim->vco1.minfreq = ROM16(record[0]) * 1000; 4228 pll_lim->vco1.maxfreq = ROM16(record[2]) * 1000; 4229 pll_lim->vco1.min_inputfreq = ROM16(record[4]) * 1000; 4230 pll_lim->vco1.max_inputfreq = ROM16(record[6]) * 1000; 4231 pll_lim->vco1.min_m = record[8]; 4232 pll_lim->vco1.max_m = record[9]; 4233 pll_lim->vco1.min_n = record[10]; 4234 pll_lim->vco1.max_n = record[11]; 4235 pll_lim->min_p = record[12]; 4236 pll_lim->max_p = record[13]; 4237 /* where did this go to?? */ 4238 if (limit_match == 0x00614100 || limit_match == 0x00614900) 4239 pll_lim->refclk = 27000; 4240 else 4241 pll_lim->refclk = 100000; 4242 } 4243 4244 /* 4245 * By now any valid limit table ought to have set a max frequency for 4246 * vco1, so if it's zero it's either a pre limit table bios, or one 4247 * with an empty limit table (seen on nv18) 4248 */ 4249 if (!pll_lim->vco1.maxfreq) { 4250 pll_lim->vco1.minfreq = bios->fminvco; 4251 pll_lim->vco1.maxfreq = bios->fmaxvco; 4252 pll_lim->vco1.min_inputfreq = 0; 4253 pll_lim->vco1.max_inputfreq = INT_MAX; 4254 pll_lim->vco1.min_n = 0x1; 4255 pll_lim->vco1.max_n = 0xff; 4256 pll_lim->vco1.min_m = 0x1; 4257 if (crystal_straps == 0) { 4258 /* nv05 does this, nv11 doesn't, nv10 unknown */ 4259 if (cv < 0x11) 4260 pll_lim->vco1.min_m = 0x7; 4261 pll_lim->vco1.max_m = 0xd; 4262 } else { 4263 if (cv < 0x11) 4264 pll_lim->vco1.min_m = 0x8; 4265 pll_lim->vco1.max_m = 0xe; 4266 } 4267 if (cv < 0x17 || cv == 0x1a || cv == 0x20) 4268 pll_lim->max_log2p = 4; 4269 else 4270 pll_lim->max_log2p = 5; 4271 pll_lim->max_usable_log2p = pll_lim->max_log2p; 4272 } 4273 4274 if (!pll_lim->refclk) 4275 switch (crystal_straps) { 4276 case 0: 4277 pll_lim->refclk = 13500; 4278 break; 4279 case (1 << 6): 4280 pll_lim->refclk = 14318; 4281 break; 4282 case (1 << 22): 4283 pll_lim->refclk = 27000; 4284 break; 4285 case (1 << 22 | 1 << 6): 4286 pll_lim->refclk = 25000; 4287 break; 4288 } 4289 4290#if 0 /* for easy debugging */ 4291 ErrorF("pll.vco1.minfreq: %d\n", pll_lim->vco1.minfreq); 4292 ErrorF("pll.vco1.maxfreq: %d\n", pll_lim->vco1.maxfreq); 4293 ErrorF("pll.vco2.minfreq: %d\n", pll_lim->vco2.minfreq); 4294 ErrorF("pll.vco2.maxfreq: %d\n", pll_lim->vco2.maxfreq); 4295 4296 ErrorF("pll.vco1.min_inputfreq: %d\n", pll_lim->vco1.min_inputfreq); 4297 ErrorF("pll.vco1.max_inputfreq: %d\n", pll_lim->vco1.max_inputfreq); 4298 ErrorF("pll.vco2.min_inputfreq: %d\n", pll_lim->vco2.min_inputfreq); 4299 ErrorF("pll.vco2.max_inputfreq: %d\n", pll_lim->vco2.max_inputfreq); 4300 4301 ErrorF("pll.vco1.min_n: %d\n", pll_lim->vco1.min_n); 4302 ErrorF("pll.vco1.max_n: %d\n", pll_lim->vco1.max_n); 4303 ErrorF("pll.vco1.min_m: %d\n", pll_lim->vco1.min_m); 4304 ErrorF("pll.vco1.max_m: %d\n", pll_lim->vco1.max_m); 4305 ErrorF("pll.vco2.min_n: %d\n", pll_lim->vco2.min_n); 4306 ErrorF("pll.vco2.max_n: %d\n", pll_lim->vco2.max_n); 4307 ErrorF("pll.vco2.min_m: %d\n", pll_lim->vco2.min_m); 4308 ErrorF("pll.vco2.max_m: %d\n", pll_lim->vco2.max_m); 4309 4310 ErrorF("pll.max_log2p: %d\n", pll_lim->max_log2p); 4311 ErrorF("pll.log2p_bias: %d\n", pll_lim->log2p_bias); 4312 4313 ErrorF("pll.refclk: %d\n", pll_lim->refclk); 4314#endif 4315 4316 return 0; 4317} 4318 4319static void parse_bios_version(struct drm_device *dev, struct nvbios *bios, uint16_t offset) 4320{ 4321 /* 4322 * offset + 0 (8 bits): Micro version 4323 * offset + 1 (8 bits): Minor version 4324 * offset + 2 (8 bits): Chip version 4325 * offset + 3 (8 bits): Major version 4326 */ 4327 4328 bios->major_version = bios->data[offset + 3]; 4329 bios->pub.chip_version = bios->data[offset + 2]; 4330 NV_TRACE(dev, "Bios version %02x.%02x.%02x.%02x\n", 4331 bios->data[offset + 3], bios->data[offset + 2], 4332 bios->data[offset + 1], bios->data[offset]); 4333} 4334 4335static void parse_script_table_pointers(struct nvbios *bios, uint16_t offset) 4336{ 4337 /* 4338 * Parses the init table segment for pointers used in script execution. 4339 * 4340 * offset + 0 (16 bits): init script tables pointer 4341 * offset + 2 (16 bits): macro index table pointer 4342 * offset + 4 (16 bits): macro table pointer 4343 * offset + 6 (16 bits): condition table pointer 4344 * offset + 8 (16 bits): io condition table pointer 4345 * offset + 10 (16 bits): io flag condition table pointer 4346 * offset + 12 (16 bits): init function table pointer 4347 */ 4348 4349 bios->init_script_tbls_ptr = ROM16(bios->data[offset]); 4350 bios->macro_index_tbl_ptr = ROM16(bios->data[offset + 2]); 4351 bios->macro_tbl_ptr = ROM16(bios->data[offset + 4]); 4352 bios->condition_tbl_ptr = ROM16(bios->data[offset + 6]); 4353 bios->io_condition_tbl_ptr = ROM16(bios->data[offset + 8]); 4354 bios->io_flag_condition_tbl_ptr = ROM16(bios->data[offset + 10]); 4355 bios->init_function_tbl_ptr = ROM16(bios->data[offset + 12]); 4356} 4357 4358static int parse_bit_A_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 4359{ 4360 /* 4361 * Parses the load detect values for g80 cards. 4362 * 4363 * offset + 0 (16 bits): loadval table pointer 4364 */ 4365 4366 uint16_t load_table_ptr; 4367 uint8_t version, headerlen, entrylen, num_entries; 4368 4369 if (bitentry->length != 3) { 4370 NV_ERROR(dev, "Do not understand BIT A table\n"); 4371 return -EINVAL; 4372 } 4373 4374 load_table_ptr = ROM16(bios->data[bitentry->offset]); 4375 4376 if (load_table_ptr == 0x0) { 4377 NV_ERROR(dev, "Pointer to BIT loadval table invalid\n"); 4378 return -EINVAL; 4379 } 4380 4381 version = bios->data[load_table_ptr]; 4382 4383 if (version != 0x10) { 4384 NV_ERROR(dev, "BIT loadval table version %d.%d not supported\n", 4385 version >> 4, version & 0xF); 4386 return -ENOSYS; 4387 } 4388 4389 headerlen = bios->data[load_table_ptr + 1]; 4390 entrylen = bios->data[load_table_ptr + 2]; 4391 num_entries = bios->data[load_table_ptr + 3]; 4392 4393 if (headerlen != 4 || entrylen != 4 || num_entries != 2) { 4394 NV_ERROR(dev, "Do not understand BIT loadval table\n"); 4395 return -EINVAL; 4396 } 4397 4398 /* First entry is normal dac, 2nd tv-out perhaps? */ 4399 bios->pub.dactestval = ROM32(bios->data[load_table_ptr + headerlen]) & 0x3ff; 4400 4401 return 0; 4402} 4403 4404static int parse_bit_C_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 4405{ 4406 /* 4407 * offset + 8 (16 bits): PLL limits table pointer 4408 * 4409 * There's more in here, but that's unknown. 4410 */ 4411 4412 if (bitentry->length < 10) { 4413 NV_ERROR(dev, "Do not understand BIT C table\n"); 4414 return -EINVAL; 4415 } 4416 4417 bios->pll_limit_tbl_ptr = ROM16(bios->data[bitentry->offset + 8]); 4418 4419 return 0; 4420} 4421 4422static int parse_bit_display_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 4423{ 4424 /* 4425 * Parses the flat panel table segment that the bit entry points to. 4426 * Starting at bitentry->offset: 4427 * 4428 * offset + 0 (16 bits): ??? table pointer - seems to have 18 byte 4429 * records beginning with a freq. 4430 * offset + 2 (16 bits): mode table pointer 4431 */ 4432 4433 if (bitentry->length != 4) { 4434 NV_ERROR(dev, "Do not understand BIT display table\n"); 4435 return -EINVAL; 4436 } 4437 4438 bios->fp.fptablepointer = ROM16(bios->data[bitentry->offset + 2]); 4439 4440 return 0; 4441} 4442 4443static int parse_bit_init_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 4444{ 4445 /* 4446 * Parses the init table segment that the bit entry points to. 4447 * 4448 * See parse_script_table_pointers for layout 4449 */ 4450 4451 if (bitentry->length < 14) { 4452 NV_ERROR(dev, "Do not understand init table\n"); 4453 return -EINVAL; 4454 } 4455 4456 parse_script_table_pointers(bios, bitentry->offset); 4457 4458 if (bitentry->length >= 16) 4459 bios->some_script_ptr = ROM16(bios->data[bitentry->offset + 14]); 4460 if (bitentry->length >= 18) 4461 bios->init96_tbl_ptr = ROM16(bios->data[bitentry->offset + 16]); 4462 4463 return 0; 4464} 4465 4466static int parse_bit_i_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 4467{ 4468 /* 4469 * BIT 'i' (info?) table 4470 * 4471 * offset + 0 (32 bits): BIOS version dword (as in B table) 4472 * offset + 5 (8 bits): BIOS feature byte (same as for BMP?) 4473 * offset + 13 (16 bits): pointer to table containing DAC load 4474 * detection comparison values 4475 * 4476 * There's other things in the table, purpose unknown 4477 */ 4478 4479 uint16_t daccmpoffset; 4480 uint8_t dacver, dacheaderlen; 4481 4482 if (bitentry->length < 6) { 4483 NV_ERROR(dev, "BIT i table too short for needed information\n"); 4484 return -EINVAL; 4485 } 4486 4487 parse_bios_version(dev, bios, bitentry->offset); 4488 4489 /* 4490 * bit 4 seems to indicate a mobile bios (doesn't suffer from BMP's 4491 * Quadro identity crisis), other bits possibly as for BMP feature byte 4492 */ 4493 bios->feature_byte = bios->data[bitentry->offset + 5]; 4494 bios->is_mobile = bios->feature_byte & FEATURE_MOBILE; 4495 4496 if (bitentry->length < 15) { 4497 NV_WARN(dev, "BIT i table not long enough for DAC load " 4498 "detection comparison table\n"); 4499 return -EINVAL; 4500 } 4501 4502 daccmpoffset = ROM16(bios->data[bitentry->offset + 13]); 4503 4504 /* doesn't exist on g80 */ 4505 if (!daccmpoffset) 4506 return 0; 4507 4508 /* 4509 * The first value in the table, following the header, is the 4510 * comparison value, the second entry is a comparison value for 4511 * TV load detection. 4512 */ 4513 4514 dacver = bios->data[daccmpoffset]; 4515 dacheaderlen = bios->data[daccmpoffset + 1]; 4516 4517 if (dacver != 0x00 && dacver != 0x10) { 4518 NV_WARN(dev, "DAC load detection comparison table version " 4519 "%d.%d not known\n", dacver >> 4, dacver & 0xf); 4520 return -ENOSYS; 4521 } 4522 4523 bios->pub.dactestval = ROM32(bios->data[daccmpoffset + dacheaderlen]); 4524 bios->pub.tvdactestval = ROM32(bios->data[daccmpoffset + dacheaderlen + 4]); 4525 4526 return 0; 4527} 4528 4529static int parse_bit_lvds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 4530{ 4531 /* 4532 * Parses the LVDS table segment that the bit entry points to. 4533 * Starting at bitentry->offset: 4534 * 4535 * offset + 0 (16 bits): LVDS strap xlate table pointer 4536 */ 4537 4538 if (bitentry->length != 2) { 4539 NV_ERROR(dev, "Do not understand BIT LVDS table\n"); 4540 return -EINVAL; 4541 } 4542 4543 /* 4544 * No idea if it's still called the LVDS manufacturer table, but 4545 * the concept's close enough. 4546 */ 4547 bios->fp.lvdsmanufacturerpointer = ROM16(bios->data[bitentry->offset]); 4548 4549 return 0; 4550} 4551 4552static int 4553parse_bit_M_tbl_entry(struct drm_device *dev, struct nvbios *bios, 4554 struct bit_entry *bitentry) 4555{ 4556 /* 4557 * offset + 2 (8 bits): number of options in an 4558 * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode option set 4559 * offset + 3 (16 bits): pointer to strap xlate table for RAM 4560 * restrict option selection 4561 * 4562 * There's a bunch of bits in this table other than the RAM restrict 4563 * stuff that we don't use - their use currently unknown 4564 */ 4565 4566 /* 4567 * Older bios versions don't have a sufficiently long table for 4568 * what we want 4569 */ 4570 if (bitentry->length < 0x5) 4571 return 0; 4572 4573 if (bitentry->id[1] < 2) { 4574 bios->ram_restrict_group_count = bios->data[bitentry->offset + 2]; 4575 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 3]); 4576 } else { 4577 bios->ram_restrict_group_count = bios->data[bitentry->offset + 0]; 4578 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 1]); 4579 } 4580 4581 return 0; 4582} 4583 4584static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry) 4585{ 4586 /* 4587 * Parses the pointer to the TMDS table 4588 * 4589 * Starting at bitentry->offset: 4590 * 4591 * offset + 0 (16 bits): TMDS table pointer 4592 * 4593 * The TMDS table is typically found just before the DCB table, with a 4594 * characteristic signature of 0x11,0x13 (1.1 being version, 0x13 being 4595 * length?) 4596 * 4597 * At offset +7 is a pointer to a script, which I don't know how to 4598 * run yet. 4599 * At offset +9 is a pointer to another script, likewise 4600 * Offset +11 has a pointer to a table where the first word is a pxclk 4601 * frequency and the second word a pointer to a script, which should be 4602 * run if the comparison pxclk frequency is less than the pxclk desired. 4603 * This repeats for decreasing comparison frequencies 4604 * Offset +13 has a pointer to a similar table 4605 * The selection of table (and possibly +7/+9 script) is dictated by 4606 * "or" from the DCB. 4607 */ 4608 4609 uint16_t tmdstableptr, script1, script2; 4610 4611 if (bitentry->length != 2) { 4612 NV_ERROR(dev, "Do not understand BIT TMDS table\n"); 4613 return -EINVAL; 4614 } 4615 4616 tmdstableptr = ROM16(bios->data[bitentry->offset]); 4617 4618 if (tmdstableptr == 0x0) { 4619 NV_ERROR(dev, "Pointer to TMDS table invalid\n"); 4620 return -EINVAL; 4621 } 4622 4623 /* nv50+ has v2.0, but we don't parse it atm */ 4624 if (bios->data[tmdstableptr] != 0x11) { 4625 NV_WARN(dev, 4626 "TMDS table revision %d.%d not currently supported\n", 4627 bios->data[tmdstableptr] >> 4, bios->data[tmdstableptr] & 0xf); 4628 return -ENOSYS; 4629 } 4630 4631 /* 4632 * These two scripts are odd: they don't seem to get run even when 4633 * they are not stubbed. 4634 */ 4635 script1 = ROM16(bios->data[tmdstableptr + 7]); 4636 script2 = ROM16(bios->data[tmdstableptr + 9]); 4637 if (bios->data[script1] != 'q' || bios->data[script2] != 'q') 4638 NV_WARN(dev, "TMDS table script pointers not stubbed\n"); 4639 4640 bios->tmds.output0_script_ptr = ROM16(bios->data[tmdstableptr + 11]); 4641 bios->tmds.output1_script_ptr = ROM16(bios->data[tmdstableptr + 13]); 4642 4643 return 0; 4644} 4645 4646static int 4647parse_bit_U_tbl_entry(struct drm_device *dev, struct nvbios *bios, 4648 struct bit_entry *bitentry) 4649{ 4650 /* 4651 * Parses the pointer to the G80 output script tables 4652 * 4653 * Starting at bitentry->offset: 4654 * 4655 * offset + 0 (16 bits): output script table pointer 4656 */ 4657 4658 uint16_t outputscripttableptr; 4659 4660 if (bitentry->length != 3) { 4661 NV_ERROR(dev, "Do not understand BIT U table\n"); 4662 return -EINVAL; 4663 } 4664 4665 outputscripttableptr = ROM16(bios->data[bitentry->offset]); 4666 bios->display.script_table_ptr = outputscripttableptr; 4667 return 0; 4668} 4669 4670static int 4671parse_bit_displayport_tbl_entry(struct drm_device *dev, struct nvbios *bios, 4672 struct bit_entry *bitentry) 4673{ 4674 bios->display.dp_table_ptr = ROM16(bios->data[bitentry->offset]); 4675 return 0; 4676} 4677 4678struct bit_table { 4679 const char id; 4680 int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *); 4681}; 4682 4683#define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry }) 4684 4685static int 4686parse_bit_table(struct nvbios *bios, const uint16_t bitoffset, 4687 struct bit_table *table) 4688{ 4689 struct drm_device *dev = bios->dev; 4690 uint8_t maxentries = bios->data[bitoffset + 4]; 4691 int i, offset; 4692 struct bit_entry bitentry; 4693 4694 for (i = 0, offset = bitoffset + 6; i < maxentries; i++, offset += 6) { 4695 bitentry.id[0] = bios->data[offset]; 4696 4697 if (bitentry.id[0] != table->id) 4698 continue; 4699 4700 bitentry.id[1] = bios->data[offset + 1]; 4701 bitentry.length = ROM16(bios->data[offset + 2]); 4702 bitentry.offset = ROM16(bios->data[offset + 4]); 4703 4704 return table->parse_fn(dev, bios, &bitentry); 4705 } 4706 4707 NV_INFO(dev, "BIT table '%c' not found\n", table->id); 4708 return -ENOSYS; 4709} 4710 4711static int 4712parse_bit_structure(struct nvbios *bios, const uint16_t bitoffset) 4713{ 4714 int ret; 4715 4716 /* 4717 * The only restriction on parsing order currently is having 'i' first 4718 * for use of bios->*_version or bios->feature_byte while parsing; 4719 * functions shouldn't be actually *doing* anything apart from pulling 4720 * data from the image into the bios struct, thus no interdependencies 4721 */ 4722 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('i', i)); 4723 if (ret) /* info? */ 4724 return ret; 4725 if (bios->major_version >= 0x60) /* g80+ */ 4726 parse_bit_table(bios, bitoffset, &BIT_TABLE('A', A)); 4727 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('C', C)); 4728 if (ret) 4729 return ret; 4730 parse_bit_table(bios, bitoffset, &BIT_TABLE('D', display)); 4731 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('I', init)); 4732 if (ret) 4733 return ret; 4734 parse_bit_table(bios, bitoffset, &BIT_TABLE('M', M)); /* memory? */ 4735 parse_bit_table(bios, bitoffset, &BIT_TABLE('L', lvds)); 4736 parse_bit_table(bios, bitoffset, &BIT_TABLE('T', tmds)); 4737 parse_bit_table(bios, bitoffset, &BIT_TABLE('U', U)); 4738 parse_bit_table(bios, bitoffset, &BIT_TABLE('d', displayport)); 4739 4740 return 0; 4741} 4742 4743static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsigned int offset) 4744{ 4745 /* 4746 * Parses the BMP structure for useful things, but does not act on them 4747 * 4748 * offset + 5: BMP major version 4749 * offset + 6: BMP minor version 4750 * offset + 9: BMP feature byte 4751 * offset + 10: BCD encoded BIOS version 4752 * 4753 * offset + 18: init script table pointer (for bios versions < 5.10h) 4754 * offset + 20: extra init script table pointer (for bios 4755 * versions < 5.10h) 4756 * 4757 * offset + 24: memory init table pointer (used on early bios versions) 4758 * offset + 26: SDR memory sequencing setup data table 4759 * offset + 28: DDR memory sequencing setup data table 4760 * 4761 * offset + 54: index of I2C CRTC pair to use for CRT output 4762 * offset + 55: index of I2C CRTC pair to use for TV output 4763 * offset + 56: index of I2C CRTC pair to use for flat panel output 4764 * offset + 58: write CRTC index for I2C pair 0 4765 * offset + 59: read CRTC index for I2C pair 0 4766 * offset + 60: write CRTC index for I2C pair 1 4767 * offset + 61: read CRTC index for I2C pair 1 4768 * 4769 * offset + 67: maximum internal PLL frequency (single stage PLL) 4770 * offset + 71: minimum internal PLL frequency (single stage PLL) 4771 * 4772 * offset + 75: script table pointers, as described in 4773 * parse_script_table_pointers 4774 * 4775 * offset + 89: TMDS single link output A table pointer 4776 * offset + 91: TMDS single link output B table pointer 4777 * offset + 95: LVDS single link output A table pointer 4778 * offset + 105: flat panel timings table pointer 4779 * offset + 107: flat panel strapping translation table pointer 4780 * offset + 117: LVDS manufacturer panel config table pointer 4781 * offset + 119: LVDS manufacturer strapping translation table pointer 4782 * 4783 * offset + 142: PLL limits table pointer 4784 * 4785 * offset + 156: minimum pixel clock for LVDS dual link 4786 */ 4787 4788 uint8_t *bmp = &bios->data[offset], bmp_version_major, bmp_version_minor; 4789 uint16_t bmplength; 4790 uint16_t legacy_scripts_offset, legacy_i2c_offset; 4791 4792 /* load needed defaults in case we can't parse this info */ 4793 bios->bdcb.dcb.i2c[0].write = NV_CIO_CRE_DDC_WR__INDEX; 4794 bios->bdcb.dcb.i2c[0].read = NV_CIO_CRE_DDC_STATUS__INDEX; 4795 bios->bdcb.dcb.i2c[1].write = NV_CIO_CRE_DDC0_WR__INDEX; 4796 bios->bdcb.dcb.i2c[1].read = NV_CIO_CRE_DDC0_STATUS__INDEX; 4797 bios->pub.digital_min_front_porch = 0x4b; 4798 bios->fmaxvco = 256000; 4799 bios->fminvco = 128000; 4800 bios->fp.duallink_transition_clk = 90000; 4801 4802 bmp_version_major = bmp[5]; 4803 bmp_version_minor = bmp[6]; 4804 4805 NV_TRACE(dev, "BMP version %d.%d\n", 4806 bmp_version_major, bmp_version_minor); 4807 4808 /* 4809 * Make sure that 0x36 is blank and can't be mistaken for a DCB 4810 * pointer on early versions 4811 */ 4812 if (bmp_version_major < 5) 4813 *(uint16_t *)&bios->data[0x36] = 0; 4814 4815 /* 4816 * Seems that the minor version was 1 for all major versions prior 4817 * to 5. Version 6 could theoretically exist, but I suspect BIT 4818 * happened instead. 4819 */ 4820 if ((bmp_version_major < 5 && bmp_version_minor != 1) || bmp_version_major > 5) { 4821 NV_ERROR(dev, "You have an unsupported BMP version. " 4822 "Please send in your bios\n"); 4823 return -ENOSYS; 4824 } 4825 4826 if (bmp_version_major == 0) 4827 /* nothing that's currently useful in this version */ 4828 return 0; 4829 else if (bmp_version_major == 1) 4830 bmplength = 44; /* exact for 1.01 */ 4831 else if (bmp_version_major == 2) 4832 bmplength = 48; /* exact for 2.01 */ 4833 else if (bmp_version_major == 3) 4834 bmplength = 54; 4835 /* guessed - mem init tables added in this version */ 4836 else if (bmp_version_major == 4 || bmp_version_minor < 0x1) 4837 /* don't know if 5.0 exists... */ 4838 bmplength = 62; 4839 /* guessed - BMP I2C indices added in version 4*/ 4840 else if (bmp_version_minor < 0x6) 4841 bmplength = 67; /* exact for 5.01 */ 4842 else if (bmp_version_minor < 0x10) 4843 bmplength = 75; /* exact for 5.06 */ 4844 else if (bmp_version_minor == 0x10) 4845 bmplength = 89; /* exact for 5.10h */ 4846 else if (bmp_version_minor < 0x14) 4847 bmplength = 118; /* exact for 5.11h */ 4848 else if (bmp_version_minor < 0x24) 4849 /* 4850 * Not sure of version where pll limits came in; 4851 * certainly exist by 0x24 though. 4852 */ 4853 /* length not exact: this is long enough to get lvds members */ 4854 bmplength = 123; 4855 else if (bmp_version_minor < 0x27) 4856 /* 4857 * Length not exact: this is long enough to get pll limit 4858 * member 4859 */ 4860 bmplength = 144; 4861 else 4862 /* 4863 * Length not exact: this is long enough to get dual link 4864 * transition clock. 4865 */ 4866 bmplength = 158; 4867 4868 /* checksum */ 4869 if (nv_cksum(bmp, 8)) { 4870 NV_ERROR(dev, "Bad BMP checksum\n"); 4871 return -EINVAL; 4872 } 4873 4874 /* 4875 * Bit 4 seems to indicate either a mobile bios or a quadro card -- 4876 * mobile behaviour consistent (nv11+), quadro only seen nv18gl-nv36gl 4877 * (not nv10gl), bit 5 that the flat panel tables are present, and 4878 * bit 6 a tv bios. 4879 */ 4880 bios->feature_byte = bmp[9]; 4881 4882 parse_bios_version(dev, bios, offset + 10); 4883 4884 if (bmp_version_major < 5 || bmp_version_minor < 0x10) 4885 bios->old_style_init = true; 4886 legacy_scripts_offset = 18; 4887 if (bmp_version_major < 2) 4888 legacy_scripts_offset -= 4; 4889 bios->init_script_tbls_ptr = ROM16(bmp[legacy_scripts_offset]); 4890 bios->extra_init_script_tbl_ptr = ROM16(bmp[legacy_scripts_offset + 2]); 4891 4892 if (bmp_version_major > 2) { /* appears in BMP 3 */ 4893 bios->legacy.mem_init_tbl_ptr = ROM16(bmp[24]); 4894 bios->legacy.sdr_seq_tbl_ptr = ROM16(bmp[26]); 4895 bios->legacy.ddr_seq_tbl_ptr = ROM16(bmp[28]); 4896 } 4897 4898 legacy_i2c_offset = 0x48; /* BMP version 2 & 3 */ 4899 if (bmplength > 61) 4900 legacy_i2c_offset = offset + 54; 4901 bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset]; 4902 bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1]; 4903 bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2]; 4904 bios->bdcb.dcb.i2c[0].write = bios->data[legacy_i2c_offset + 4]; 4905 bios->bdcb.dcb.i2c[0].read = bios->data[legacy_i2c_offset + 5]; 4906 bios->bdcb.dcb.i2c[1].write = bios->data[legacy_i2c_offset + 6]; 4907 bios->bdcb.dcb.i2c[1].read = bios->data[legacy_i2c_offset + 7]; 4908 4909 if (bmplength > 74) { 4910 bios->fmaxvco = ROM32(bmp[67]); 4911 bios->fminvco = ROM32(bmp[71]); 4912 } 4913 if (bmplength > 88) 4914 parse_script_table_pointers(bios, offset + 75); 4915 if (bmplength > 94) { 4916 bios->tmds.output0_script_ptr = ROM16(bmp[89]); 4917 bios->tmds.output1_script_ptr = ROM16(bmp[91]); 4918 /* 4919 * Never observed in use with lvds scripts, but is reused for 4920 * 18/24 bit panel interface default for EDID equipped panels 4921 * (if_is_24bit not set directly to avoid any oscillation). 4922 */ 4923 bios->legacy.lvds_single_a_script_ptr = ROM16(bmp[95]); 4924 } 4925 if (bmplength > 108) { 4926 bios->fp.fptablepointer = ROM16(bmp[105]); 4927 bios->fp.fpxlatetableptr = ROM16(bmp[107]); 4928 bios->fp.xlatwidth = 1; 4929 } 4930 if (bmplength > 120) { 4931 bios->fp.lvdsmanufacturerpointer = ROM16(bmp[117]); 4932 bios->fp.fpxlatemanufacturertableptr = ROM16(bmp[119]); 4933 } 4934 if (bmplength > 143) 4935 bios->pll_limit_tbl_ptr = ROM16(bmp[142]); 4936 4937 if (bmplength > 157) 4938 bios->fp.duallink_transition_clk = ROM16(bmp[156]) * 10; 4939 4940 return 0; 4941} 4942 4943static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len) 4944{ 4945 int i, j; 4946 4947 for (i = 0; i <= (n - len); i++) { 4948 for (j = 0; j < len; j++) 4949 if (data[i + j] != str[j]) 4950 break; 4951 if (j == len) 4952 return i; 4953 } 4954 4955 return 0; 4956} 4957 4958static int 4959read_dcb_i2c_entry(struct drm_device *dev, int dcb_version, uint8_t *i2ctable, int index, struct dcb_i2c_entry *i2c) 4960{ 4961 uint8_t dcb_i2c_ver = dcb_version, headerlen = 0, entry_len = 4; 4962 int i2c_entries = DCB_MAX_NUM_I2C_ENTRIES; 4963 int recordoffset = 0, rdofs = 1, wrofs = 0; 4964 uint8_t port_type = 0; 4965 4966 if (!i2ctable) 4967 return -EINVAL; 4968 4969 if (dcb_version >= 0x30) { 4970 if (i2ctable[0] != dcb_version) /* necessary? */ 4971 NV_WARN(dev, 4972 "DCB I2C table version mismatch (%02X vs %02X)\n", 4973 i2ctable[0], dcb_version); 4974 dcb_i2c_ver = i2ctable[0]; 4975 headerlen = i2ctable[1]; 4976 if (i2ctable[2] <= DCB_MAX_NUM_I2C_ENTRIES) 4977 i2c_entries = i2ctable[2]; 4978 else 4979 NV_WARN(dev, 4980 "DCB I2C table has more entries than indexable " 4981 "(%d entries, max index 15)\n", i2ctable[2]); 4982 entry_len = i2ctable[3]; 4983 /* [4] is i2c_default_indices, read in parse_dcb_table() */ 4984 } 4985 /* 4986 * It's your own fault if you call this function on a DCB 1.1 BIOS -- 4987 * the test below is for DCB 1.2 4988 */ 4989 if (dcb_version < 0x14) { 4990 recordoffset = 2; 4991 rdofs = 0; 4992 wrofs = 1; 4993 } 4994 4995 if (index == 0xf) 4996 return 0; 4997 if (index > i2c_entries) { 4998 NV_ERROR(dev, "DCB I2C index too big (%d > %d)\n", 4999 index, i2ctable[2]); 5000 return -ENOENT; 5001 } 5002 if (i2ctable[headerlen + entry_len * index + 3] == 0xff) { 5003 NV_ERROR(dev, "DCB I2C entry invalid\n"); 5004 return -EINVAL; 5005 } 5006 5007 if (dcb_i2c_ver >= 0x30) { 5008 port_type = i2ctable[headerlen + recordoffset + 3 + entry_len * index]; 5009 5010 /* 5011 * Fixup for chips using same address offset for read and 5012 * write. 5013 */ 5014 if (port_type == 4) /* seen on C51 */ 5015 rdofs = wrofs = 1; 5016 if (port_type >= 5) /* G80+ */ 5017 rdofs = wrofs = 0; 5018 } 5019 5020 if (dcb_i2c_ver >= 0x40 && port_type != 5 && port_type != 6) 5021 NV_WARN(dev, "DCB I2C table has port type %d\n", port_type); 5022 5023 i2c->port_type = port_type; 5024 i2c->read = i2ctable[headerlen + recordoffset + rdofs + entry_len * index]; 5025 i2c->write = i2ctable[headerlen + recordoffset + wrofs + entry_len * index]; 5026 5027 return 0; 5028} 5029 5030static struct dcb_gpio_entry * 5031new_gpio_entry(struct nvbios *bios) 5032{ 5033 struct parsed_dcb_gpio *gpio = &bios->bdcb.gpio; 5034 5035 return &gpio->entry[gpio->entries++]; 5036} 5037 5038struct dcb_gpio_entry * 5039nouveau_bios_gpio_entry(struct drm_device *dev, enum dcb_gpio_tag tag) 5040{ 5041 struct drm_nouveau_private *dev_priv = dev->dev_private; 5042 struct nvbios *bios = &dev_priv->VBIOS; 5043 int i; 5044 5045 for (i = 0; i < bios->bdcb.gpio.entries; i++) { 5046 if (bios->bdcb.gpio.entry[i].tag != tag) 5047 continue; 5048 5049 return &bios->bdcb.gpio.entry[i]; 5050 } 5051 5052 return NULL; 5053} 5054 5055static void 5056parse_dcb30_gpio_entry(struct nvbios *bios, uint16_t offset) 5057{ 5058 struct dcb_gpio_entry *gpio; 5059 uint16_t ent = ROM16(bios->data[offset]); 5060 uint8_t line = ent & 0x1f, 5061 tag = ent >> 5 & 0x3f, 5062 flags = ent >> 11 & 0x1f; 5063 5064 if (tag == 0x3f) 5065 return; 5066 5067 gpio = new_gpio_entry(bios); 5068 5069 gpio->tag = tag; 5070 gpio->line = line; 5071 gpio->invert = flags != 4; 5072} 5073 5074static void 5075parse_dcb40_gpio_entry(struct nvbios *bios, uint16_t offset) 5076{ 5077 struct dcb_gpio_entry *gpio; 5078 uint32_t ent = ROM32(bios->data[offset]); 5079 uint8_t line = ent & 0x1f, 5080 tag = ent >> 8 & 0xff; 5081 5082 if (tag == 0xff) 5083 return; 5084 5085 gpio = new_gpio_entry(bios); 5086 5087 /* Currently unused, we may need more fields parsed at some 5088 * point. */ 5089 gpio->tag = tag; 5090 gpio->line = line; 5091} 5092 5093static void 5094parse_dcb_gpio_table(struct nvbios *bios) 5095{ 5096 struct drm_device *dev = bios->dev; 5097 uint16_t gpio_table_ptr = bios->bdcb.gpio_table_ptr; 5098 uint8_t *gpio_table = &bios->data[gpio_table_ptr]; 5099 int header_len = gpio_table[1], 5100 entries = gpio_table[2], 5101 entry_len = gpio_table[3]; 5102 void (*parse_entry)(struct nvbios *, uint16_t) = NULL; 5103 int i; 5104 5105 if (bios->bdcb.version >= 0x40) { 5106 if (gpio_table_ptr && entry_len != 4) { 5107 NV_WARN(dev, "Invalid DCB GPIO table entry length.\n"); 5108 return; 5109 } 5110 5111 parse_entry = parse_dcb40_gpio_entry; 5112 5113 } else if (bios->bdcb.version >= 0x30) { 5114 if (gpio_table_ptr && entry_len != 2) { 5115 NV_WARN(dev, "Invalid DCB GPIO table entry length.\n"); 5116 return; 5117 } 5118 5119 parse_entry = parse_dcb30_gpio_entry; 5120 5121 } else if (bios->bdcb.version >= 0x22) { 5122 /* 5123 * DCBs older than v3.0 don't really have a GPIO 5124 * table, instead they keep some GPIO info at fixed 5125 * locations. 5126 */ 5127 uint16_t dcbptr = ROM16(bios->data[0x36]); 5128 uint8_t *tvdac_gpio = &bios->data[dcbptr - 5]; 5129 5130 if (tvdac_gpio[0] & 1) { 5131 struct dcb_gpio_entry *gpio = new_gpio_entry(bios); 5132 5133 gpio->tag = DCB_GPIO_TVDAC0; 5134 gpio->line = tvdac_gpio[1] >> 4; 5135 gpio->invert = tvdac_gpio[0] & 2; 5136 } 5137 } 5138 5139 if (!gpio_table_ptr) 5140 return; 5141 5142 if (entries > DCB_MAX_NUM_GPIO_ENTRIES) { 5143 NV_WARN(dev, "Too many entries in the DCB GPIO table.\n"); 5144 entries = DCB_MAX_NUM_GPIO_ENTRIES; 5145 } 5146 5147 for (i = 0; i < entries; i++) 5148 parse_entry(bios, gpio_table_ptr + header_len + entry_len * i); 5149} 5150 5151struct dcb_connector_table_entry * 5152nouveau_bios_connector_entry(struct drm_device *dev, int index) 5153{ 5154 struct drm_nouveau_private *dev_priv = dev->dev_private; 5155 struct nvbios *bios = &dev_priv->VBIOS; 5156 struct dcb_connector_table_entry *cte; 5157 5158 if (index >= bios->bdcb.connector.entries) 5159 return NULL; 5160 5161 cte = &bios->bdcb.connector.entry[index]; 5162 if (cte->type == 0xff) 5163 return NULL; 5164 5165 return cte; 5166} 5167 5168static void 5169parse_dcb_connector_table(struct nvbios *bios) 5170{ 5171 struct drm_device *dev = bios->dev; 5172 struct dcb_connector_table *ct = &bios->bdcb.connector; 5173 struct dcb_connector_table_entry *cte; 5174 uint8_t *conntab = &bios->data[bios->bdcb.connector_table_ptr]; 5175 uint8_t *entry; 5176 int i; 5177 5178 if (!bios->bdcb.connector_table_ptr) { 5179 NV_DEBUG_KMS(dev, "No DCB connector table present\n"); 5180 return; 5181 } 5182 5183 NV_INFO(dev, "DCB connector table: VHER 0x%02x %d %d %d\n", 5184 conntab[0], conntab[1], conntab[2], conntab[3]); 5185 if ((conntab[0] != 0x30 && conntab[0] != 0x40) || 5186 (conntab[3] != 2 && conntab[3] != 4)) { 5187 NV_ERROR(dev, " Unknown! Please report.\n"); 5188 return; 5189 } 5190 5191 ct->entries = conntab[2]; 5192 5193 entry = conntab + conntab[1]; 5194 cte = &ct->entry[0]; 5195 for (i = 0; i < conntab[2]; i++, entry += conntab[3], cte++) { 5196 if (conntab[3] == 2) 5197 cte->entry = ROM16(entry[0]); 5198 else 5199 cte->entry = ROM32(entry[0]); 5200 cte->type = (cte->entry & 0x000000ff) >> 0; 5201 cte->index = (cte->entry & 0x00000f00) >> 8; 5202 switch (cte->entry & 0x00033000) { 5203 case 0x00001000: 5204 cte->gpio_tag = 0x07; 5205 break; 5206 case 0x00002000: 5207 cte->gpio_tag = 0x08; 5208 break; 5209 case 0x00010000: 5210 cte->gpio_tag = 0x51; 5211 break; 5212 case 0x00020000: 5213 cte->gpio_tag = 0x52; 5214 break; 5215 default: 5216 cte->gpio_tag = 0xff; 5217 break; 5218 } 5219 5220 if (cte->type == 0xff) 5221 continue; 5222 5223 NV_INFO(dev, " %d: 0x%08x: type 0x%02x idx %d tag 0x%02x\n", 5224 i, cte->entry, cte->type, cte->index, cte->gpio_tag); 5225 } 5226} 5227 5228static struct dcb_entry *new_dcb_entry(struct parsed_dcb *dcb) 5229{ 5230 struct dcb_entry *entry = &dcb->entry[dcb->entries]; 5231 5232 memset(entry, 0, sizeof(struct dcb_entry)); 5233 entry->index = dcb->entries++; 5234 5235 return entry; 5236} 5237 5238static void fabricate_vga_output(struct parsed_dcb *dcb, int i2c, int heads) 5239{ 5240 struct dcb_entry *entry = new_dcb_entry(dcb); 5241 5242 entry->type = 0; 5243 entry->i2c_index = i2c; 5244 entry->heads = heads; 5245 entry->location = DCB_LOC_ON_CHIP; 5246 /* "or" mostly unused in early gen crt modesetting, 0 is fine */ 5247} 5248 5249static void fabricate_dvi_i_output(struct parsed_dcb *dcb, bool twoHeads) 5250{ 5251 struct dcb_entry *entry = new_dcb_entry(dcb); 5252 5253 entry->type = 2; 5254 entry->i2c_index = LEGACY_I2C_PANEL; 5255 entry->heads = twoHeads ? 3 : 1; 5256 entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */ 5257 entry->or = 1; /* means |0x10 gets set on CRE_LCD__INDEX */ 5258 entry->duallink_possible = false; /* SiI164 and co. are single link */ 5259 5260#if 0 5261 /* 5262 * For dvi-a either crtc probably works, but my card appears to only 5263 * support dvi-d. "nvidia" still attempts to program it for dvi-a, 5264 * doing the full fp output setup (program 0x6808.. fp dimension regs, 5265 * setting 0x680848 to 0x10000111 to enable, maybe setting 0x680880); 5266 * the monitor picks up the mode res ok and lights up, but no pixel 5267 * data appears, so the board manufacturer probably connected up the 5268 * sync lines, but missed the video traces / components 5269 * 5270 * with this introduction, dvi-a left as an exercise for the reader. 5271 */ 5272 fabricate_vga_output(dcb, LEGACY_I2C_PANEL, entry->heads); 5273#endif 5274} 5275 5276static void fabricate_tv_output(struct parsed_dcb *dcb, bool twoHeads) 5277{ 5278 struct dcb_entry *entry = new_dcb_entry(dcb); 5279 5280 entry->type = 1; 5281 entry->i2c_index = LEGACY_I2C_TV; 5282 entry->heads = twoHeads ? 3 : 1; 5283 entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */ 5284} 5285 5286static bool 5287parse_dcb20_entry(struct drm_device *dev, struct bios_parsed_dcb *bdcb, 5288 uint32_t conn, uint32_t conf, struct dcb_entry *entry) 5289{ 5290 entry->type = conn & 0xf; 5291 entry->i2c_index = (conn >> 4) & 0xf; 5292 entry->heads = (conn >> 8) & 0xf; 5293 if (bdcb->version >= 0x40) 5294 entry->connector = (conn >> 12) & 0xf; 5295 entry->bus = (conn >> 16) & 0xf; 5296 entry->location = (conn >> 20) & 0x3; 5297 entry->or = (conn >> 24) & 0xf; 5298 /* 5299 * Normal entries consist of a single bit, but dual link has the 5300 * next most significant bit set too 5301 */ 5302 entry->duallink_possible = 5303 ((1 << (ffs(entry->or) - 1)) * 3 == entry->or); 5304 5305 switch (entry->type) { 5306 case OUTPUT_ANALOG: 5307 /* 5308 * Although the rest of a CRT conf dword is usually 5309 * zeros, mac biosen have stuff there so we must mask 5310 */ 5311 entry->crtconf.maxfreq = (bdcb->version < 0x30) ? 5312 (conf & 0xffff) * 10 : 5313 (conf & 0xff) * 10000; 5314 break; 5315 case OUTPUT_LVDS: 5316 { 5317 uint32_t mask; 5318 if (conf & 0x1) 5319 entry->lvdsconf.use_straps_for_mode = true; 5320 if (bdcb->version < 0x22) { 5321 mask = ~0xd; 5322 /* 5323 * The laptop in bug 14567 lies and claims to not use 5324 * straps when it does, so assume all DCB 2.0 laptops 5325 * use straps, until a broken EDID using one is produced 5326 */ 5327 entry->lvdsconf.use_straps_for_mode = true; 5328 /* 5329 * Both 0x4 and 0x8 show up in v2.0 tables; assume they 5330 * mean the same thing (probably wrong, but might work) 5331 */ 5332 if (conf & 0x4 || conf & 0x8) 5333 entry->lvdsconf.use_power_scripts = true; 5334 } else { 5335 mask = ~0x5; 5336 if (conf & 0x4) 5337 entry->lvdsconf.use_power_scripts = true; 5338 } 5339 if (conf & mask) { 5340 /* 5341 * Until we even try to use these on G8x, it's 5342 * useless reporting unknown bits. They all are. 5343 */ 5344 if (bdcb->version >= 0x40) 5345 break; 5346 5347 NV_ERROR(dev, "Unknown LVDS configuration bits, " 5348 "please report\n"); 5349 } 5350 break; 5351 } 5352 case OUTPUT_TV: 5353 { 5354 if (bdcb->version >= 0x30) 5355 entry->tvconf.has_component_output = conf & (0x8 << 4); 5356 else 5357 entry->tvconf.has_component_output = false; 5358 5359 break; 5360 } 5361 case OUTPUT_DP: 5362 entry->dpconf.sor.link = (conf & 0x00000030) >> 4; 5363 entry->dpconf.link_bw = (conf & 0x00e00000) >> 21; 5364 switch ((conf & 0x0f000000) >> 24) { 5365 case 0xf: 5366 entry->dpconf.link_nr = 4; 5367 break; 5368 case 0x3: 5369 entry->dpconf.link_nr = 2; 5370 break; 5371 default: 5372 entry->dpconf.link_nr = 1; 5373 break; 5374 } 5375 break; 5376 case OUTPUT_TMDS: 5377 entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4; 5378 break; 5379 case 0xe: 5380 /* weird g80 mobile type that "nv" treats as a terminator */ 5381 bdcb->dcb.entries--; 5382 return false; 5383 } 5384 5385 /* unsure what DCB version introduces this, 3.0? */ 5386 if (conf & 0x100000) 5387 entry->i2c_upper_default = true; 5388 5389 return true; 5390} 5391 5392static bool 5393parse_dcb15_entry(struct drm_device *dev, struct parsed_dcb *dcb, 5394 uint32_t conn, uint32_t conf, struct dcb_entry *entry) 5395{ 5396 if (conn != 0xf0003f00 && conn != 0xf2247f10 && conn != 0xf2204001 && 5397 conn != 0xf2204301 && conn != 0xf2204311 && conn != 0xf2208001 && 5398 conn != 0xf2244001 && conn != 0xf2244301 && conn != 0xf2244311 && 5399 conn != 0xf4204011 && conn != 0xf4208011 && conn != 0xf4248011 && 5400 conn != 0xf2045ff2 && conn != 0xf2045f14 && conn != 0xf207df14 && 5401 conn != 0xf2205004 && conn != 0xf2209004) { 5402 NV_ERROR(dev, "Unknown DCB 1.5 entry, please report\n"); 5403 5404 /* cause output setting to fail for !TV, so message is seen */ 5405 if ((conn & 0xf) != 0x1) 5406 dcb->entries = 0; 5407 5408 return false; 5409 } 5410 /* most of the below is a "best guess" atm */ 5411 entry->type = conn & 0xf; 5412 if (entry->type == 2) 5413 /* another way of specifying straps based lvds... */ 5414 entry->type = OUTPUT_LVDS; 5415 if (entry->type == 4) { /* digital */ 5416 if (conn & 0x10) 5417 entry->type = OUTPUT_LVDS; 5418 else 5419 entry->type = OUTPUT_TMDS; 5420 } 5421 /* what's in bits 5-13? could be some encoder maker thing, in tv case */ 5422 entry->i2c_index = (conn >> 14) & 0xf; 5423 /* raw heads field is in range 0-1, so move to 1-2 */ 5424 entry->heads = ((conn >> 18) & 0x7) + 1; 5425 entry->location = (conn >> 21) & 0xf; 5426 /* unused: entry->bus = (conn >> 25) & 0x7; */ 5427 /* set or to be same as heads -- hopefully safe enough */ 5428 entry->or = entry->heads; 5429 entry->duallink_possible = false; 5430 5431 switch (entry->type) { 5432 case OUTPUT_ANALOG: 5433 entry->crtconf.maxfreq = (conf & 0xffff) * 10; 5434 break; 5435 case OUTPUT_LVDS: 5436 /* 5437 * This is probably buried in conn's unknown bits. 5438 * This will upset EDID-ful models, if they exist 5439 */ 5440 entry->lvdsconf.use_straps_for_mode = true; 5441 entry->lvdsconf.use_power_scripts = true; 5442 break; 5443 case OUTPUT_TMDS: 5444 /* 5445 * Invent a DVI-A output, by copying the fields of the DVI-D 5446 * output; reported to work by math_b on an NV20(!). 5447 */ 5448 fabricate_vga_output(dcb, entry->i2c_index, entry->heads); 5449 break; 5450 case OUTPUT_TV: 5451 entry->tvconf.has_component_output = false; 5452 break; 5453 } 5454 5455 return true; 5456} 5457 5458static bool parse_dcb_entry(struct drm_device *dev, struct bios_parsed_dcb *bdcb, 5459 uint32_t conn, uint32_t conf) 5460{ 5461 struct dcb_entry *entry = new_dcb_entry(&bdcb->dcb); 5462 bool ret; 5463 5464 if (bdcb->version >= 0x20) 5465 ret = parse_dcb20_entry(dev, bdcb, conn, conf, entry); 5466 else 5467 ret = parse_dcb15_entry(dev, &bdcb->dcb, conn, conf, entry); 5468 if (!ret) 5469 return ret; 5470 5471 read_dcb_i2c_entry(dev, bdcb->version, bdcb->i2c_table, 5472 entry->i2c_index, &bdcb->dcb.i2c[entry->i2c_index]); 5473 5474 return true; 5475} 5476 5477static 5478void merge_like_dcb_entries(struct drm_device *dev, struct parsed_dcb *dcb) 5479{ 5480 /* 5481 * DCB v2.0 lists each output combination separately. 5482 * Here we merge compatible entries to have fewer outputs, with 5483 * more options 5484 */ 5485 5486 int i, newentries = 0; 5487 5488 for (i = 0; i < dcb->entries; i++) { 5489 struct dcb_entry *ient = &dcb->entry[i]; 5490 int j; 5491 5492 for (j = i + 1; j < dcb->entries; j++) { 5493 struct dcb_entry *jent = &dcb->entry[j]; 5494 5495 if (jent->type == 100) /* already merged entry */ 5496 continue; 5497 5498 /* merge heads field when all other fields the same */ 5499 if (jent->i2c_index == ient->i2c_index && 5500 jent->type == ient->type && 5501 jent->location == ient->location && 5502 jent->or == ient->or) { 5503 NV_TRACE(dev, "Merging DCB entries %d and %d\n", 5504 i, j); 5505 ient->heads |= jent->heads; 5506 jent->type = 100; /* dummy value */ 5507 } 5508 } 5509 } 5510 5511 /* Compact entries merged into others out of dcb */ 5512 for (i = 0; i < dcb->entries; i++) { 5513 if (dcb->entry[i].type == 100) 5514 continue; 5515 5516 if (newentries != i) { 5517 dcb->entry[newentries] = dcb->entry[i]; 5518 dcb->entry[newentries].index = newentries; 5519 } 5520 newentries++; 5521 } 5522 5523 dcb->entries = newentries; 5524} 5525 5526static int parse_dcb_table(struct drm_device *dev, struct nvbios *bios, bool twoHeads) 5527{ 5528 struct bios_parsed_dcb *bdcb = &bios->bdcb; 5529 struct parsed_dcb *dcb; 5530 uint16_t dcbptr, i2ctabptr = 0; 5531 uint8_t *dcbtable; 5532 uint8_t headerlen = 0x4, entries = DCB_MAX_NUM_ENTRIES; 5533 bool configblock = true; 5534 int recordlength = 8, confofs = 4; 5535 int i; 5536 5537 dcb = bios->pub.dcb = &bdcb->dcb; 5538 dcb->entries = 0; 5539 5540 /* get the offset from 0x36 */ 5541 dcbptr = ROM16(bios->data[0x36]); 5542 5543 if (dcbptr == 0x0) { 5544 NV_WARN(dev, "No output data (DCB) found in BIOS, " 5545 "assuming a CRT output exists\n"); 5546 /* this situation likely means a really old card, pre DCB */ 5547 fabricate_vga_output(dcb, LEGACY_I2C_CRT, 1); 5548 5549 if (nv04_tv_identify(dev, 5550 bios->legacy.i2c_indices.tv) >= 0) 5551 fabricate_tv_output(dcb, twoHeads); 5552 5553 return 0; 5554 } 5555 5556 dcbtable = &bios->data[dcbptr]; 5557 5558 /* get DCB version */ 5559 bdcb->version = dcbtable[0]; 5560 NV_TRACE(dev, "Found Display Configuration Block version %d.%d\n", 5561 bdcb->version >> 4, bdcb->version & 0xf); 5562 5563 if (bdcb->version >= 0x20) { /* NV17+ */ 5564 uint32_t sig; 5565 5566 if (bdcb->version >= 0x30) { /* NV40+ */ 5567 headerlen = dcbtable[1]; 5568 entries = dcbtable[2]; 5569 recordlength = dcbtable[3]; 5570 i2ctabptr = ROM16(dcbtable[4]); 5571 sig = ROM32(dcbtable[6]); 5572 bdcb->gpio_table_ptr = ROM16(dcbtable[10]); 5573 bdcb->connector_table_ptr = ROM16(dcbtable[20]); 5574 } else { 5575 i2ctabptr = ROM16(dcbtable[2]); 5576 sig = ROM32(dcbtable[4]); 5577 headerlen = 8; 5578 } 5579 5580 if (sig != 0x4edcbdcb) { 5581 NV_ERROR(dev, "Bad Display Configuration Block " 5582 "signature (%08X)\n", sig); 5583 return -EINVAL; 5584 } 5585 } else if (bdcb->version >= 0x15) { /* some NV11 and NV20 */ 5586 char sig[8] = { 0 }; 5587 5588 strncpy(sig, (char *)&dcbtable[-7], 7); 5589 i2ctabptr = ROM16(dcbtable[2]); 5590 recordlength = 10; 5591 confofs = 6; 5592 5593 if (strcmp(sig, "DEV_REC")) { 5594 NV_ERROR(dev, "Bad Display Configuration Block " 5595 "signature (%s)\n", sig); 5596 return -EINVAL; 5597 } 5598 } else { 5599 /* 5600 * v1.4 (some NV15/16, NV11+) seems the same as v1.5, but always 5601 * has the same single (crt) entry, even when tv-out present, so 5602 * the conclusion is this version cannot really be used. 5603 * v1.2 tables (some NV6/10, and NV15+) normally have the same 5604 * 5 entries, which are not specific to the card and so no use. 5605 * v1.2 does have an I2C table that read_dcb_i2c_table can 5606 * handle, but cards exist (nv11 in #14821) with a bad i2c table 5607 * pointer, so use the indices parsed in parse_bmp_structure. 5608 * v1.1 (NV5+, maybe some NV4) is entirely unhelpful 5609 */ 5610 NV_TRACEWARN(dev, "No useful information in BIOS output table; " 5611 "adding all possible outputs\n"); 5612 fabricate_vga_output(dcb, LEGACY_I2C_CRT, 1); 5613 5614 /* 5615 * Attempt to detect TV before DVI because the test 5616 * for the former is more accurate and it rules the 5617 * latter out. 5618 */ 5619 if (nv04_tv_identify(dev, 5620 bios->legacy.i2c_indices.tv) >= 0) 5621 fabricate_tv_output(dcb, twoHeads); 5622 5623 else if (bios->tmds.output0_script_ptr || 5624 bios->tmds.output1_script_ptr) 5625 fabricate_dvi_i_output(dcb, twoHeads); 5626 5627 return 0; 5628 } 5629 5630 if (!i2ctabptr) 5631 NV_WARN(dev, "No pointer to DCB I2C port table\n"); 5632 else { 5633 bdcb->i2c_table = &bios->data[i2ctabptr]; 5634 if (bdcb->version >= 0x30) 5635 bdcb->i2c_default_indices = bdcb->i2c_table[4]; 5636 } 5637 5638 parse_dcb_gpio_table(bios); 5639 parse_dcb_connector_table(bios); 5640 5641 if (entries > DCB_MAX_NUM_ENTRIES) 5642 entries = DCB_MAX_NUM_ENTRIES; 5643 5644 for (i = 0; i < entries; i++) { 5645 uint32_t connection, config = 0; 5646 5647 connection = ROM32(dcbtable[headerlen + recordlength * i]); 5648 if (configblock) 5649 config = ROM32(dcbtable[headerlen + confofs + recordlength * i]); 5650 5651 /* seen on an NV11 with DCB v1.5 */ 5652 if (connection == 0x00000000) 5653 break; 5654 5655 /* seen on an NV17 with DCB v2.0 */ 5656 if (connection == 0xffffffff) 5657 break; 5658 5659 if ((connection & 0x0000000f) == 0x0000000f) 5660 continue; 5661 5662 NV_TRACEWARN(dev, "Raw DCB entry %d: %08x %08x\n", 5663 dcb->entries, connection, config); 5664 5665 if (!parse_dcb_entry(dev, bdcb, connection, config)) 5666 break; 5667 } 5668 5669 /* 5670 * apart for v2.1+ not being known for requiring merging, this 5671 * guarantees dcbent->index is the index of the entry in the rom image 5672 */ 5673 if (bdcb->version < 0x21) 5674 merge_like_dcb_entries(dev, dcb); 5675 5676 return dcb->entries ? 0 : -ENXIO; 5677} 5678 5679static void 5680fixup_legacy_connector(struct nvbios *bios) 5681{ 5682 struct bios_parsed_dcb *bdcb = &bios->bdcb; 5683 struct parsed_dcb *dcb = &bdcb->dcb; 5684 int high = 0, i; 5685 5686 /* 5687 * DCB 3.0 also has the table in most cases, but there are some cards 5688 * where the table is filled with stub entries, and the DCB entriy 5689 * indices are all 0. We don't need the connector indices on pre-G80 5690 * chips (yet?) so limit the use to DCB 4.0 and above. 5691 */ 5692 if (bdcb->version >= 0x40) 5693 return; 5694 5695 /* 5696 * No known connector info before v3.0, so make it up. the rule here 5697 * is: anything on the same i2c bus is considered to be on the same 5698 * connector. any output without an associated i2c bus is assigned 5699 * its own unique connector index. 5700 */ 5701 for (i = 0; i < dcb->entries; i++) { 5702 if (dcb->entry[i].i2c_index == 0xf) 5703 continue; 5704 5705 /* 5706 * Ignore the I2C index for on-chip TV-out, as there 5707 * are cards with bogus values (nv31m in bug 23212), 5708 * and it's otherwise useless. 5709 */ 5710 if (dcb->entry[i].type == OUTPUT_TV && 5711 dcb->entry[i].location == DCB_LOC_ON_CHIP) { 5712 dcb->entry[i].i2c_index = 0xf; 5713 continue; 5714 } 5715 5716 dcb->entry[i].connector = dcb->entry[i].i2c_index; 5717 if (dcb->entry[i].connector > high) 5718 high = dcb->entry[i].connector; 5719 } 5720 5721 for (i = 0; i < dcb->entries; i++) { 5722 if (dcb->entry[i].i2c_index != 0xf) 5723 continue; 5724 5725 dcb->entry[i].connector = ++high; 5726 } 5727} 5728 5729static void 5730fixup_legacy_i2c(struct nvbios *bios) 5731{ 5732 struct parsed_dcb *dcb = &bios->bdcb.dcb; 5733 int i; 5734 5735 for (i = 0; i < dcb->entries; i++) { 5736 if (dcb->entry[i].i2c_index == LEGACY_I2C_CRT) 5737 dcb->entry[i].i2c_index = bios->legacy.i2c_indices.crt; 5738 if (dcb->entry[i].i2c_index == LEGACY_I2C_PANEL) 5739 dcb->entry[i].i2c_index = bios->legacy.i2c_indices.panel; 5740 if (dcb->entry[i].i2c_index == LEGACY_I2C_TV) 5741 dcb->entry[i].i2c_index = bios->legacy.i2c_indices.tv; 5742 } 5743} 5744 5745static int load_nv17_hwsq_ucode_entry(struct drm_device *dev, struct nvbios *bios, uint16_t hwsq_offset, int entry) 5746{ 5747 /* 5748 * The header following the "HWSQ" signature has the number of entries, 5749 * and the entry size 5750 * 5751 * An entry consists of a dword to write to the sequencer control reg 5752 * (0x00001304), followed by the ucode bytes, written sequentially, 5753 * starting at reg 0x00001400 5754 */ 5755 5756 uint8_t bytes_to_write; 5757 uint16_t hwsq_entry_offset; 5758 int i; 5759 5760 if (bios->data[hwsq_offset] <= entry) { 5761 NV_ERROR(dev, "Too few entries in HW sequencer table for " 5762 "requested entry\n"); 5763 return -ENOENT; 5764 } 5765 5766 bytes_to_write = bios->data[hwsq_offset + 1]; 5767 5768 if (bytes_to_write != 36) { 5769 NV_ERROR(dev, "Unknown HW sequencer entry size\n"); 5770 return -EINVAL; 5771 } 5772 5773 NV_TRACE(dev, "Loading NV17 power sequencing microcode\n"); 5774 5775 hwsq_entry_offset = hwsq_offset + 2 + entry * bytes_to_write; 5776 5777 /* set sequencer control */ 5778 bios_wr32(bios, 0x00001304, ROM32(bios->data[hwsq_entry_offset])); 5779 bytes_to_write -= 4; 5780 5781 /* write ucode */ 5782 for (i = 0; i < bytes_to_write; i += 4) 5783 bios_wr32(bios, 0x00001400 + i, ROM32(bios->data[hwsq_entry_offset + i + 4])); 5784 5785 /* twiddle NV_PBUS_DEBUG_4 */ 5786 bios_wr32(bios, NV_PBUS_DEBUG_4, bios_rd32(bios, NV_PBUS_DEBUG_4) | 0x18); 5787 5788 return 0; 5789} 5790 5791static int load_nv17_hw_sequencer_ucode(struct drm_device *dev, 5792 struct nvbios *bios) 5793{ 5794 /* 5795 * BMP based cards, from NV17, need a microcode loading to correctly 5796 * control the GPIO etc for LVDS panels 5797 * 5798 * BIT based cards seem to do this directly in the init scripts 5799 * 5800 * The microcode entries are found by the "HWSQ" signature. 5801 */ 5802 5803 const uint8_t hwsq_signature[] = { 'H', 'W', 'S', 'Q' }; 5804 const int sz = sizeof(hwsq_signature); 5805 int hwsq_offset; 5806 5807 hwsq_offset = findstr(bios->data, bios->length, hwsq_signature, sz); 5808 if (!hwsq_offset) 5809 return 0; 5810 5811 /* always use entry 0? */ 5812 return load_nv17_hwsq_ucode_entry(dev, bios, hwsq_offset + sz, 0); 5813} 5814 5815uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev) 5816{ 5817 struct drm_nouveau_private *dev_priv = dev->dev_private; 5818 struct nvbios *bios = &dev_priv->VBIOS; 5819 const uint8_t edid_sig[] = { 5820 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 }; 5821 uint16_t offset = 0; 5822 uint16_t newoffset; 5823 int searchlen = NV_PROM_SIZE; 5824 5825 if (bios->fp.edid) 5826 return bios->fp.edid; 5827 5828 while (searchlen) { 5829 newoffset = findstr(&bios->data[offset], searchlen, 5830 edid_sig, 8); 5831 if (!newoffset) 5832 return NULL; 5833 offset += newoffset; 5834 if (!nv_cksum(&bios->data[offset], EDID1_LEN)) 5835 break; 5836 5837 searchlen -= offset; 5838 offset++; 5839 } 5840 5841 NV_TRACE(dev, "Found EDID in BIOS\n"); 5842 5843 return bios->fp.edid = &bios->data[offset]; 5844} 5845 5846void 5847nouveau_bios_run_init_table(struct drm_device *dev, uint16_t table, 5848 struct dcb_entry *dcbent) 5849{ 5850 struct drm_nouveau_private *dev_priv = dev->dev_private; 5851 struct nvbios *bios = &dev_priv->VBIOS; 5852 struct init_exec iexec = { true, false }; 5853 5854 bios->display.output = dcbent; 5855 parse_init_table(bios, table, &iexec); 5856 bios->display.output = NULL; 5857} 5858 5859static bool NVInitVBIOS(struct drm_device *dev) 5860{ 5861 struct drm_nouveau_private *dev_priv = dev->dev_private; 5862 struct nvbios *bios = &dev_priv->VBIOS; 5863 5864 memset(bios, 0, sizeof(struct nvbios)); 5865 bios->dev = dev; 5866 5867 if (!NVShadowVBIOS(dev, bios->data)) 5868 return false; 5869 5870 bios->length = NV_PROM_SIZE; 5871 return true; 5872} 5873 5874static int nouveau_parse_vbios_struct(struct drm_device *dev) 5875{ 5876 struct drm_nouveau_private *dev_priv = dev->dev_private; 5877 struct nvbios *bios = &dev_priv->VBIOS; 5878 const uint8_t bit_signature[] = { 0xff, 0xb8, 'B', 'I', 'T' }; 5879 const uint8_t bmp_signature[] = { 0xff, 0x7f, 'N', 'V', 0x0 }; 5880 int offset; 5881 5882 offset = findstr(bios->data, bios->length, 5883 bit_signature, sizeof(bit_signature)); 5884 if (offset) { 5885 NV_TRACE(dev, "BIT BIOS found\n"); 5886 return parse_bit_structure(bios, offset + 6); 5887 } 5888 5889 offset = findstr(bios->data, bios->length, 5890 bmp_signature, sizeof(bmp_signature)); 5891 if (offset) { 5892 NV_TRACE(dev, "BMP BIOS found\n"); 5893 return parse_bmp_structure(dev, bios, offset); 5894 } 5895 5896 NV_ERROR(dev, "No known BIOS signature found\n"); 5897 return -ENODEV; 5898} 5899 5900int 5901nouveau_run_vbios_init(struct drm_device *dev) 5902{ 5903 struct drm_nouveau_private *dev_priv = dev->dev_private; 5904 struct nvbios *bios = &dev_priv->VBIOS; 5905 int i, ret = 0; 5906 5907 NVLockVgaCrtcs(dev, false); 5908 if (nv_two_heads(dev)) 5909 NVSetOwner(dev, bios->state.crtchead); 5910 5911 if (bios->major_version < 5) /* BMP only */ 5912 load_nv17_hw_sequencer_ucode(dev, bios); 5913 5914 if (bios->execute) { 5915 bios->fp.last_script_invoc = 0; 5916 bios->fp.lvds_init_run = false; 5917 } 5918 5919 parse_init_tables(bios); 5920 5921 /* 5922 * Runs some additional script seen on G8x VBIOSen. The VBIOS' 5923 * parser will run this right after the init tables, the binary 5924 * driver appears to run it at some point later. 5925 */ 5926 if (bios->some_script_ptr) { 5927 struct init_exec iexec = {true, false}; 5928 5929 NV_INFO(dev, "Parsing VBIOS init table at offset 0x%04X\n", 5930 bios->some_script_ptr); 5931 parse_init_table(bios, bios->some_script_ptr, &iexec); 5932 } 5933 5934 if (dev_priv->card_type >= NV_50) { 5935 for (i = 0; i < bios->bdcb.dcb.entries; i++) { 5936 nouveau_bios_run_display_table(dev, 5937 &bios->bdcb.dcb.entry[i], 5938 0, 0); 5939 } 5940 } 5941 5942 NVLockVgaCrtcs(dev, true); 5943 5944 return ret; 5945} 5946 5947static void 5948nouveau_bios_i2c_devices_takedown(struct drm_device *dev) 5949{ 5950 struct drm_nouveau_private *dev_priv = dev->dev_private; 5951 struct nvbios *bios = &dev_priv->VBIOS; 5952 struct dcb_i2c_entry *entry; 5953 int i; 5954 5955 entry = &bios->bdcb.dcb.i2c[0]; 5956 for (i = 0; i < DCB_MAX_NUM_I2C_ENTRIES; i++, entry++) 5957 nouveau_i2c_fini(dev, entry); 5958} 5959 5960int 5961nouveau_bios_init(struct drm_device *dev) 5962{ 5963 struct drm_nouveau_private *dev_priv = dev->dev_private; 5964 struct nvbios *bios = &dev_priv->VBIOS; 5965 uint32_t saved_nv_pextdev_boot_0; 5966 bool was_locked; 5967 int ret; 5968 5969 dev_priv->vbios = &bios->pub; 5970 5971 if (!NVInitVBIOS(dev)) 5972 return -ENODEV; 5973 5974 ret = nouveau_parse_vbios_struct(dev); 5975 if (ret) 5976 return ret; 5977 5978 ret = parse_dcb_table(dev, bios, nv_two_heads(dev)); 5979 if (ret) 5980 return ret; 5981 5982 fixup_legacy_i2c(bios); 5983 fixup_legacy_connector(bios); 5984 5985 if (!bios->major_version) /* we don't run version 0 bios */ 5986 return 0; 5987 5988 /* these will need remembering across a suspend */ 5989 saved_nv_pextdev_boot_0 = bios_rd32(bios, NV_PEXTDEV_BOOT_0); 5990 bios->state.saved_nv_pfb_cfg0 = bios_rd32(bios, NV_PFB_CFG0); 5991 5992 /* init script execution disabled */ 5993 bios->execute = false; 5994 5995 /* ... unless card isn't POSTed already */ 5996 if (dev_priv->card_type >= NV_10 && 5997 NVReadVgaCrtc(dev, 0, 0x00) == 0 && 5998 NVReadVgaCrtc(dev, 0, 0x1a) == 0) { 5999 NV_INFO(dev, "Adaptor not initialised\n"); 6000 if (dev_priv->card_type < NV_50) { 6001 NV_ERROR(dev, "Unable to POST this chipset\n"); 6002 return -ENODEV; 6003 } 6004 6005 NV_INFO(dev, "Running VBIOS init tables\n"); 6006 bios->execute = true; 6007 } 6008 6009 bios_wr32(bios, NV_PEXTDEV_BOOT_0, saved_nv_pextdev_boot_0); 6010 6011 ret = nouveau_run_vbios_init(dev); 6012 if (ret) { 6013 dev_priv->vbios = NULL; 6014 return ret; 6015 } 6016 6017 /* feature_byte on BMP is poor, but init always sets CR4B */ 6018 was_locked = NVLockVgaCrtcs(dev, false); 6019 if (bios->major_version < 5) 6020 bios->is_mobile = NVReadVgaCrtc(dev, 0, NV_CIO_CRE_4B) & 0x40; 6021 6022 /* all BIT systems need p_f_m_t for digital_min_front_porch */ 6023 if (bios->is_mobile || bios->major_version >= 5) 6024 ret = parse_fp_mode_table(dev, bios); 6025 NVLockVgaCrtcs(dev, was_locked); 6026 6027 /* allow subsequent scripts to execute */ 6028 bios->execute = true; 6029 6030 return 0; 6031} 6032 6033void 6034nouveau_bios_takedown(struct drm_device *dev) 6035{ 6036 nouveau_bios_i2c_devices_takedown(dev); 6037} 6038