1 /* 2 * Copyright 2008 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Author: Stanislaw Skowronek 23 */ 24 25 #include <linux/module.h> 26 #include <linux/sched.h> 27 #include <asm/unaligned.h> 28 29 #define ATOM_DEBUG 30 31 #include "atom.h" 32 #include "atom-names.h" 33 #include "atom-bits.h" 34 #include "radeon.h" 35 #include <linux/delay.h> 36 37 #define ATOM_COND_ABOVE 0 38 #define ATOM_COND_ABOVEOREQUAL 1 39 #define ATOM_COND_ALWAYS 2 40 #define ATOM_COND_BELOW 3 41 #define ATOM_COND_BELOWOREQUAL 4 42 #define ATOM_COND_EQUAL 5 43 #define ATOM_COND_NOTEQUAL 6 44 45 #define ATOM_PORT_ATI 0 46 #define ATOM_PORT_PCI 1 47 #define ATOM_PORT_SYSIO 2 48 49 #define ATOM_UNIT_MICROSEC 0 50 #define ATOM_UNIT_MILLISEC 1 51 52 #define PLL_INDEX 2 53 #define PLL_DATA 3 54 55 typedef struct { 56 struct atom_context *ctx; 57 uint32_t *ps, *ws; 58 int ps_shift; 59 uint16_t start; 60 unsigned last_jump; 61 unsigned long last_jump_jiffies; 62 bool abort; 63 } atom_exec_context; 64 65 int atom_debug = 0; 66 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params); 67 68 static uint32_t atom_arg_mask[8] = { 69 0xFFFFFFFF, 0x0000FFFF, 0x00FFFF00, 0xFFFF0000, 70 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 71 }; 72 static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 }; 73 74 static int atom_dst_to_src[8][4] = { 75 /* translate destination alignment field to the source alignment encoding */ 76 {0, 0, 0, 0}, 77 {1, 2, 3, 0}, 78 {1, 2, 3, 0}, 79 {1, 2, 3, 0}, 80 {4, 5, 6, 7}, 81 {4, 5, 6, 7}, 82 {4, 5, 6, 7}, 83 {4, 5, 6, 7}, 84 }; 85 static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 }; 86 87 static int debug_depth = 0; 88 #ifdef ATOM_DEBUG 89 static void debug_print_spaces(int n) 90 { 91 while (n--) 92 kprintf(" "); 93 } 94 95 #ifdef DEBUG 96 #undef DEBUG 97 #endif 98 #ifdef SDEBUG 99 #undef SDEBUG 100 #endif 101 102 #define DEBUG(...) do if (atom_debug) { kprintf(__FILE__ __VA_ARGS__); } while (0) 103 #define SDEBUG(...) do if (atom_debug) { kprintf(__FILE__); debug_print_spaces(debug_depth); kprintf(__VA_ARGS__); } while (0) 104 105 #else /* !ATOM_DEBUG */ 106 107 #define DEBUG(...) do { } while (0) 108 #define SDEBUG(...) do { } while (0) 109 110 #endif /* ATOM_DEBUG */ 111 112 static uint32_t atom_iio_execute(struct atom_context *ctx, int base, 113 uint32_t index, uint32_t data) 114 { 115 struct radeon_device *rdev = ctx->card->dev->dev_private; 116 uint32_t temp = 0xCDCDCDCD; 117 118 while (1) 119 switch (CU8(base)) { 120 case ATOM_IIO_NOP: 121 base++; 122 break; 123 case ATOM_IIO_READ: 124 temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1)); 125 base += 3; 126 break; 127 case ATOM_IIO_WRITE: 128 if (rdev->family == CHIP_RV515) 129 (void)ctx->card->ioreg_read(ctx->card, CU16(base + 1)); 130 ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp); 131 base += 3; 132 break; 133 case ATOM_IIO_CLEAR: 134 temp &= 135 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 136 CU8(base + 2)); 137 base += 3; 138 break; 139 case ATOM_IIO_SET: 140 temp |= 141 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base + 142 2); 143 base += 3; 144 break; 145 case ATOM_IIO_MOVE_INDEX: 146 temp &= 147 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 148 CU8(base + 3)); 149 temp |= 150 ((index >> CU8(base + 2)) & 151 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 152 3); 153 base += 4; 154 break; 155 case ATOM_IIO_MOVE_DATA: 156 temp &= 157 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 158 CU8(base + 3)); 159 temp |= 160 ((data >> CU8(base + 2)) & 161 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 162 3); 163 base += 4; 164 break; 165 case ATOM_IIO_MOVE_ATTR: 166 temp &= 167 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 168 CU8(base + 3)); 169 temp |= 170 ((ctx-> 171 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 - 172 CU8 173 (base 174 + 175 1)))) 176 << CU8(base + 3); 177 base += 4; 178 break; 179 case ATOM_IIO_END: 180 return temp; 181 default: 182 DRM_INFO("Unknown IIO opcode.\n"); 183 return 0; 184 } 185 } 186 187 static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr, 188 int *ptr, uint32_t *saved, int print) 189 { 190 uint32_t idx, val = 0xCDCDCDCD, align, arg; 191 struct atom_context *gctx = ctx->ctx; 192 arg = attr & 7; 193 align = (attr >> 3) & 7; 194 195 if (saved) 196 *saved = 0; /* avoid bogus gcc warning */ 197 198 switch (arg) { 199 case ATOM_ARG_REG: 200 idx = U16(*ptr); 201 (*ptr) += 2; 202 if (print) 203 DEBUG("REG[0x%04X]", idx); 204 idx += gctx->reg_block; 205 switch (gctx->io_mode) { 206 case ATOM_IO_MM: 207 val = gctx->card->reg_read(gctx->card, idx); 208 break; 209 case ATOM_IO_PCI: 210 DRM_INFO( 211 "PCI registers are not implemented.\n"); 212 return 0; 213 case ATOM_IO_SYSIO: 214 DRM_INFO( 215 "SYSIO registers are not implemented.\n"); 216 return 0; 217 default: 218 if (!(gctx->io_mode & 0x80)) { 219 DRM_INFO("Bad IO mode.\n"); 220 return 0; 221 } 222 if (!gctx->iio[gctx->io_mode & 0x7F]) { 223 DRM_INFO( 224 "Undefined indirect IO read method %d.\n", 225 gctx->io_mode & 0x7F); 226 return 0; 227 } 228 val = 229 atom_iio_execute(gctx, 230 gctx->iio[gctx->io_mode & 0x7F], 231 idx, 0); 232 } 233 break; 234 case ATOM_ARG_PS: 235 idx = U8(*ptr); 236 (*ptr)++; 237 /* get_unaligned_le32 avoids unaligned accesses from atombios 238 * tables, noticed on a DEC Alpha. */ 239 val = get_unaligned_le32((u32 *)&ctx->ps[idx]); 240 if (print) 241 DEBUG("PS[0x%02X,0x%04X]", idx, val); 242 break; 243 case ATOM_ARG_WS: 244 idx = U8(*ptr); 245 (*ptr)++; 246 if (print) 247 DEBUG("WS[0x%02X]", idx); 248 switch (idx) { 249 case ATOM_WS_QUOTIENT: 250 val = gctx->divmul[0]; 251 break; 252 case ATOM_WS_REMAINDER: 253 val = gctx->divmul[1]; 254 break; 255 case ATOM_WS_DATAPTR: 256 val = gctx->data_block; 257 break; 258 case ATOM_WS_SHIFT: 259 val = gctx->shift; 260 break; 261 case ATOM_WS_OR_MASK: 262 val = 1 << gctx->shift; 263 break; 264 case ATOM_WS_AND_MASK: 265 val = ~(1 << gctx->shift); 266 break; 267 case ATOM_WS_FB_WINDOW: 268 val = gctx->fb_base; 269 break; 270 case ATOM_WS_ATTRIBUTES: 271 val = gctx->io_attr; 272 break; 273 case ATOM_WS_REGPTR: 274 val = gctx->reg_block; 275 break; 276 default: 277 val = ctx->ws[idx]; 278 } 279 break; 280 case ATOM_ARG_ID: 281 idx = U16(*ptr); 282 (*ptr) += 2; 283 if (print) { 284 if (gctx->data_block) 285 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block); 286 else 287 DEBUG("ID[0x%04X]", idx); 288 } 289 val = U32(idx + gctx->data_block); 290 break; 291 case ATOM_ARG_FB: 292 idx = U8(*ptr); 293 (*ptr)++; 294 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) { 295 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n", 296 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes); 297 val = 0; 298 } else 299 val = gctx->scratch[(gctx->fb_base / 4) + idx]; 300 if (print) 301 DEBUG("FB[0x%02X]", idx); 302 break; 303 case ATOM_ARG_IMM: 304 switch (align) { 305 case ATOM_SRC_DWORD: 306 val = U32(*ptr); 307 (*ptr) += 4; 308 if (print) 309 DEBUG("IMM 0x%08X\n", val); 310 return val; 311 case ATOM_SRC_WORD0: 312 case ATOM_SRC_WORD8: 313 case ATOM_SRC_WORD16: 314 val = U16(*ptr); 315 (*ptr) += 2; 316 if (print) 317 DEBUG("IMM 0x%04X\n", val); 318 return val; 319 case ATOM_SRC_BYTE0: 320 case ATOM_SRC_BYTE8: 321 case ATOM_SRC_BYTE16: 322 case ATOM_SRC_BYTE24: 323 val = U8(*ptr); 324 (*ptr)++; 325 if (print) 326 DEBUG("IMM 0x%02X\n", val); 327 return val; 328 } 329 return 0; 330 case ATOM_ARG_PLL: 331 idx = U8(*ptr); 332 (*ptr)++; 333 if (print) 334 DEBUG("PLL[0x%02X]", idx); 335 val = gctx->card->pll_read(gctx->card, idx); 336 break; 337 case ATOM_ARG_MC: 338 idx = U8(*ptr); 339 (*ptr)++; 340 if (print) 341 DEBUG("MC[0x%02X]", idx); 342 val = gctx->card->mc_read(gctx->card, idx); 343 break; 344 } 345 if (saved) 346 *saved = val; 347 val &= atom_arg_mask[align]; 348 val >>= atom_arg_shift[align]; 349 if (print) 350 switch (align) { 351 case ATOM_SRC_DWORD: 352 DEBUG(".[31:0] -> 0x%08X\n", val); 353 break; 354 case ATOM_SRC_WORD0: 355 DEBUG(".[15:0] -> 0x%04X\n", val); 356 break; 357 case ATOM_SRC_WORD8: 358 DEBUG(".[23:8] -> 0x%04X\n", val); 359 break; 360 case ATOM_SRC_WORD16: 361 DEBUG(".[31:16] -> 0x%04X\n", val); 362 break; 363 case ATOM_SRC_BYTE0: 364 DEBUG(".[7:0] -> 0x%02X\n", val); 365 break; 366 case ATOM_SRC_BYTE8: 367 DEBUG(".[15:8] -> 0x%02X\n", val); 368 break; 369 case ATOM_SRC_BYTE16: 370 DEBUG(".[23:16] -> 0x%02X\n", val); 371 break; 372 case ATOM_SRC_BYTE24: 373 DEBUG(".[31:24] -> 0x%02X\n", val); 374 break; 375 } 376 return val; 377 } 378 379 static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr) 380 { 381 uint32_t align = (attr >> 3) & 7, arg = attr & 7; 382 switch (arg) { 383 case ATOM_ARG_REG: 384 case ATOM_ARG_ID: 385 (*ptr) += 2; 386 break; 387 case ATOM_ARG_PLL: 388 case ATOM_ARG_MC: 389 case ATOM_ARG_PS: 390 case ATOM_ARG_WS: 391 case ATOM_ARG_FB: 392 (*ptr)++; 393 break; 394 case ATOM_ARG_IMM: 395 switch (align) { 396 case ATOM_SRC_DWORD: 397 (*ptr) += 4; 398 return; 399 case ATOM_SRC_WORD0: 400 case ATOM_SRC_WORD8: 401 case ATOM_SRC_WORD16: 402 (*ptr) += 2; 403 return; 404 case ATOM_SRC_BYTE0: 405 case ATOM_SRC_BYTE8: 406 case ATOM_SRC_BYTE16: 407 case ATOM_SRC_BYTE24: 408 (*ptr)++; 409 return; 410 } 411 return; 412 } 413 } 414 415 static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr) 416 { 417 return atom_get_src_int(ctx, attr, ptr, NULL, 1); 418 } 419 420 static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr) 421 { 422 uint32_t val = 0xCDCDCDCD; 423 424 switch (align) { 425 case ATOM_SRC_DWORD: 426 val = U32(*ptr); 427 (*ptr) += 4; 428 break; 429 case ATOM_SRC_WORD0: 430 case ATOM_SRC_WORD8: 431 case ATOM_SRC_WORD16: 432 val = U16(*ptr); 433 (*ptr) += 2; 434 break; 435 case ATOM_SRC_BYTE0: 436 case ATOM_SRC_BYTE8: 437 case ATOM_SRC_BYTE16: 438 case ATOM_SRC_BYTE24: 439 val = U8(*ptr); 440 (*ptr)++; 441 break; 442 } 443 return val; 444 } 445 446 static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr, 447 int *ptr, uint32_t *saved, int print) 448 { 449 return atom_get_src_int(ctx, 450 arg | atom_dst_to_src[(attr >> 3) & 451 7][(attr >> 6) & 3] << 3, 452 ptr, saved, print); 453 } 454 455 static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr) 456 { 457 atom_skip_src_int(ctx, 458 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 459 3] << 3, ptr); 460 } 461 462 static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr, 463 int *ptr, uint32_t val, uint32_t saved) 464 { 465 uint32_t align = 466 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val = 467 val, idx; 468 struct atom_context *gctx = ctx->ctx; 469 old_val &= atom_arg_mask[align] >> atom_arg_shift[align]; 470 val <<= atom_arg_shift[align]; 471 val &= atom_arg_mask[align]; 472 saved &= ~atom_arg_mask[align]; 473 val |= saved; 474 switch (arg) { 475 case ATOM_ARG_REG: 476 idx = U16(*ptr); 477 (*ptr) += 2; 478 DEBUG("REG[0x%04X]", idx); 479 idx += gctx->reg_block; 480 switch (gctx->io_mode) { 481 case ATOM_IO_MM: 482 if (idx == 0) 483 gctx->card->reg_write(gctx->card, idx, 484 val << 2); 485 else 486 gctx->card->reg_write(gctx->card, idx, val); 487 break; 488 case ATOM_IO_PCI: 489 DRM_INFO( 490 "PCI registers are not implemented.\n"); 491 return; 492 case ATOM_IO_SYSIO: 493 DRM_INFO( 494 "SYSIO registers are not implemented.\n"); 495 return; 496 default: 497 if (!(gctx->io_mode & 0x80)) { 498 DRM_INFO("Bad IO mode.\n"); 499 return; 500 } 501 if (!gctx->iio[gctx->io_mode & 0xFF]) { 502 DRM_INFO( 503 "Undefined indirect IO write method %d.\n", 504 gctx->io_mode & 0x7F); 505 return; 506 } 507 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF], 508 idx, val); 509 } 510 break; 511 case ATOM_ARG_PS: 512 idx = U8(*ptr); 513 (*ptr)++; 514 DEBUG("PS[0x%02X]", idx); 515 ctx->ps[idx] = cpu_to_le32(val); 516 break; 517 case ATOM_ARG_WS: 518 idx = U8(*ptr); 519 (*ptr)++; 520 DEBUG("WS[0x%02X]", idx); 521 switch (idx) { 522 case ATOM_WS_QUOTIENT: 523 gctx->divmul[0] = val; 524 break; 525 case ATOM_WS_REMAINDER: 526 gctx->divmul[1] = val; 527 break; 528 case ATOM_WS_DATAPTR: 529 gctx->data_block = val; 530 break; 531 case ATOM_WS_SHIFT: 532 gctx->shift = val; 533 break; 534 case ATOM_WS_OR_MASK: 535 case ATOM_WS_AND_MASK: 536 break; 537 case ATOM_WS_FB_WINDOW: 538 gctx->fb_base = val; 539 break; 540 case ATOM_WS_ATTRIBUTES: 541 gctx->io_attr = val; 542 break; 543 case ATOM_WS_REGPTR: 544 gctx->reg_block = val; 545 break; 546 default: 547 ctx->ws[idx] = val; 548 } 549 break; 550 case ATOM_ARG_FB: 551 idx = U8(*ptr); 552 (*ptr)++; 553 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) { 554 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n", 555 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes); 556 } else 557 gctx->scratch[(gctx->fb_base / 4) + idx] = val; 558 DEBUG("FB[0x%02X]", idx); 559 break; 560 case ATOM_ARG_PLL: 561 idx = U8(*ptr); 562 (*ptr)++; 563 DEBUG("PLL[0x%02X]", idx); 564 gctx->card->pll_write(gctx->card, idx, val); 565 break; 566 case ATOM_ARG_MC: 567 idx = U8(*ptr); 568 (*ptr)++; 569 DEBUG("MC[0x%02X]", idx); 570 gctx->card->mc_write(gctx->card, idx, val); 571 return; 572 } 573 switch (align) { 574 case ATOM_SRC_DWORD: 575 DEBUG(".[31:0] <- 0x%08X\n", old_val); 576 break; 577 case ATOM_SRC_WORD0: 578 DEBUG(".[15:0] <- 0x%04X\n", old_val); 579 break; 580 case ATOM_SRC_WORD8: 581 DEBUG(".[23:8] <- 0x%04X\n", old_val); 582 break; 583 case ATOM_SRC_WORD16: 584 DEBUG(".[31:16] <- 0x%04X\n", old_val); 585 break; 586 case ATOM_SRC_BYTE0: 587 DEBUG(".[7:0] <- 0x%02X\n", old_val); 588 break; 589 case ATOM_SRC_BYTE8: 590 DEBUG(".[15:8] <- 0x%02X\n", old_val); 591 break; 592 case ATOM_SRC_BYTE16: 593 DEBUG(".[23:16] <- 0x%02X\n", old_val); 594 break; 595 case ATOM_SRC_BYTE24: 596 DEBUG(".[31:24] <- 0x%02X\n", old_val); 597 break; 598 } 599 } 600 601 static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg) 602 { 603 uint8_t attr = U8((*ptr)++); 604 uint32_t dst, src, saved; 605 int dptr = *ptr; 606 SDEBUG(" dst: "); 607 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 608 SDEBUG(" src: "); 609 src = atom_get_src(ctx, attr, ptr); 610 dst += src; 611 SDEBUG(" dst: "); 612 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 613 } 614 615 static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg) 616 { 617 uint8_t attr = U8((*ptr)++); 618 uint32_t dst, src, saved; 619 int dptr = *ptr; 620 SDEBUG(" dst: "); 621 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 622 SDEBUG(" src: "); 623 src = atom_get_src(ctx, attr, ptr); 624 dst &= src; 625 SDEBUG(" dst: "); 626 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 627 } 628 629 static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg) 630 { 631 DRM_INFO("ATOM BIOS beeped!\n"); 632 } 633 634 static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg) 635 { 636 int idx = U8((*ptr)++); 637 int r = 0; 638 639 if (idx < ATOM_TABLE_NAMES_CNT) 640 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]); 641 else 642 SDEBUG(" table: %d\n", idx); 643 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx)) 644 r = atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift); 645 if (r) { 646 ctx->abort = true; 647 } 648 } 649 650 static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg) 651 { 652 uint8_t attr = U8((*ptr)++); 653 uint32_t saved; 654 int dptr = *ptr; 655 attr &= 0x38; 656 attr |= atom_def_dst[attr >> 3] << 6; 657 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 658 SDEBUG(" dst: "); 659 atom_put_dst(ctx, arg, attr, &dptr, 0, saved); 660 } 661 662 static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg) 663 { 664 uint8_t attr = U8((*ptr)++); 665 uint32_t dst, src; 666 SDEBUG(" src1: "); 667 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 668 SDEBUG(" src2: "); 669 src = atom_get_src(ctx, attr, ptr); 670 ctx->ctx->cs_equal = (dst == src); 671 ctx->ctx->cs_above = (dst > src); 672 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE", 673 ctx->ctx->cs_above ? "GT" : "LE"); 674 } 675 676 static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg) 677 { 678 unsigned count = U8((*ptr)++); 679 SDEBUG(" count: %d\n", count); 680 if (arg == ATOM_UNIT_MICROSEC) 681 udelay(count); 682 else if (!drm_can_sleep()) 683 mdelay(count); 684 else 685 msleep(count); 686 } 687 688 static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg) 689 { 690 uint8_t attr = U8((*ptr)++); 691 uint32_t dst, src; 692 SDEBUG(" src1: "); 693 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 694 SDEBUG(" src2: "); 695 src = atom_get_src(ctx, attr, ptr); 696 if (src != 0) { 697 ctx->ctx->divmul[0] = dst / src; 698 ctx->ctx->divmul[1] = dst % src; 699 } else { 700 ctx->ctx->divmul[0] = 0; 701 ctx->ctx->divmul[1] = 0; 702 } 703 } 704 705 static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg) 706 { 707 /* functionally, a nop */ 708 } 709 710 static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg) 711 { 712 int execute = 0, target = U16(*ptr); 713 unsigned long cjiffies; 714 715 (*ptr) += 2; 716 switch (arg) { 717 case ATOM_COND_ABOVE: 718 execute = ctx->ctx->cs_above; 719 break; 720 case ATOM_COND_ABOVEOREQUAL: 721 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal; 722 break; 723 case ATOM_COND_ALWAYS: 724 execute = 1; 725 break; 726 case ATOM_COND_BELOW: 727 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal); 728 break; 729 case ATOM_COND_BELOWOREQUAL: 730 execute = !ctx->ctx->cs_above; 731 break; 732 case ATOM_COND_EQUAL: 733 execute = ctx->ctx->cs_equal; 734 break; 735 case ATOM_COND_NOTEQUAL: 736 execute = !ctx->ctx->cs_equal; 737 break; 738 } 739 if (arg != ATOM_COND_ALWAYS) 740 SDEBUG(" taken: %s\n", execute ? "yes" : "no"); 741 SDEBUG(" target: 0x%04X\n", target); 742 if (execute) { 743 if (ctx->last_jump == (ctx->start + target)) { 744 cjiffies = jiffies; 745 if (time_after(cjiffies, ctx->last_jump_jiffies)) { 746 cjiffies -= ctx->last_jump_jiffies; 747 if ((jiffies_to_msecs(cjiffies) > 5000)) { 748 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n"); 749 ctx->abort = true; 750 } 751 } else { 752 /* jiffies wrap around we will just wait a little longer */ 753 ctx->last_jump_jiffies = jiffies; 754 } 755 } else { 756 ctx->last_jump = ctx->start + target; 757 ctx->last_jump_jiffies = jiffies; 758 } 759 *ptr = ctx->start + target; 760 } 761 } 762 763 static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg) 764 { 765 uint8_t attr = U8((*ptr)++); 766 uint32_t dst, mask, src, saved; 767 int dptr = *ptr; 768 SDEBUG(" dst: "); 769 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 770 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr); 771 SDEBUG(" mask: 0x%08x", mask); 772 SDEBUG(" src: "); 773 src = atom_get_src(ctx, attr, ptr); 774 dst &= mask; 775 dst |= src; 776 SDEBUG(" dst: "); 777 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 778 } 779 780 static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg) 781 { 782 uint8_t attr = U8((*ptr)++); 783 uint32_t src, saved; 784 int dptr = *ptr; 785 if (((attr >> 3) & 7) != ATOM_SRC_DWORD) 786 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 787 else { 788 atom_skip_dst(ctx, arg, attr, ptr); 789 saved = 0xCDCDCDCD; 790 } 791 SDEBUG(" src: "); 792 src = atom_get_src(ctx, attr, ptr); 793 SDEBUG(" dst: "); 794 atom_put_dst(ctx, arg, attr, &dptr, src, saved); 795 } 796 797 static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg) 798 { 799 uint8_t attr = U8((*ptr)++); 800 uint32_t dst, src; 801 SDEBUG(" src1: "); 802 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 803 SDEBUG(" src2: "); 804 src = atom_get_src(ctx, attr, ptr); 805 ctx->ctx->divmul[0] = dst * src; 806 } 807 808 static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg) 809 { 810 /* nothing */ 811 } 812 813 static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg) 814 { 815 uint8_t attr = U8((*ptr)++); 816 uint32_t dst, src, saved; 817 int dptr = *ptr; 818 SDEBUG(" dst: "); 819 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 820 SDEBUG(" src: "); 821 src = atom_get_src(ctx, attr, ptr); 822 dst |= src; 823 SDEBUG(" dst: "); 824 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 825 } 826 827 static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg) 828 { 829 uint8_t val = U8((*ptr)++); 830 SDEBUG("POST card output: 0x%02X\n", val); 831 } 832 833 static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg) 834 { 835 DRM_INFO("unimplemented!\n"); 836 } 837 838 static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg) 839 { 840 DRM_INFO("unimplemented!\n"); 841 } 842 843 static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg) 844 { 845 DRM_INFO("unimplemented!\n"); 846 } 847 848 static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg) 849 { 850 int idx = U8(*ptr); 851 (*ptr)++; 852 SDEBUG(" block: %d\n", idx); 853 if (!idx) 854 ctx->ctx->data_block = 0; 855 else if (idx == 255) 856 ctx->ctx->data_block = ctx->start; 857 else 858 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx); 859 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block); 860 } 861 862 static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg) 863 { 864 uint8_t attr = U8((*ptr)++); 865 SDEBUG(" fb_base: "); 866 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr); 867 } 868 869 static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg) 870 { 871 int port; 872 switch (arg) { 873 case ATOM_PORT_ATI: 874 port = U16(*ptr); 875 if (port < ATOM_IO_NAMES_CNT) 876 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]); 877 else 878 SDEBUG(" port: %d\n", port); 879 if (!port) 880 ctx->ctx->io_mode = ATOM_IO_MM; 881 else 882 ctx->ctx->io_mode = ATOM_IO_IIO | port; 883 (*ptr) += 2; 884 break; 885 case ATOM_PORT_PCI: 886 ctx->ctx->io_mode = ATOM_IO_PCI; 887 (*ptr)++; 888 break; 889 case ATOM_PORT_SYSIO: 890 ctx->ctx->io_mode = ATOM_IO_SYSIO; 891 (*ptr)++; 892 break; 893 } 894 } 895 896 static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg) 897 { 898 ctx->ctx->reg_block = U16(*ptr); 899 (*ptr) += 2; 900 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block); 901 } 902 903 static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg) 904 { 905 uint8_t attr = U8((*ptr)++), shift; 906 uint32_t saved, dst; 907 int dptr = *ptr; 908 attr &= 0x38; 909 attr |= atom_def_dst[attr >> 3] << 6; 910 SDEBUG(" dst: "); 911 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 912 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr); 913 SDEBUG(" shift: %d\n", shift); 914 dst <<= shift; 915 SDEBUG(" dst: "); 916 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 917 } 918 919 static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg) 920 { 921 uint8_t attr = U8((*ptr)++), shift; 922 uint32_t saved, dst; 923 int dptr = *ptr; 924 attr &= 0x38; 925 attr |= atom_def_dst[attr >> 3] << 6; 926 SDEBUG(" dst: "); 927 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 928 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr); 929 SDEBUG(" shift: %d\n", shift); 930 dst >>= shift; 931 SDEBUG(" dst: "); 932 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 933 } 934 935 static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg) 936 { 937 uint8_t attr = U8((*ptr)++), shift; 938 uint32_t saved, dst; 939 int dptr = *ptr; 940 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3]; 941 SDEBUG(" dst: "); 942 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 943 /* op needs to full dst value */ 944 dst = saved; 945 shift = atom_get_src(ctx, attr, ptr); 946 SDEBUG(" shift: %d\n", shift); 947 dst <<= shift; 948 dst &= atom_arg_mask[dst_align]; 949 dst >>= atom_arg_shift[dst_align]; 950 SDEBUG(" dst: "); 951 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 952 } 953 954 static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg) 955 { 956 uint8_t attr = U8((*ptr)++), shift; 957 uint32_t saved, dst; 958 int dptr = *ptr; 959 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3]; 960 SDEBUG(" dst: "); 961 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 962 /* op needs to full dst value */ 963 dst = saved; 964 shift = atom_get_src(ctx, attr, ptr); 965 SDEBUG(" shift: %d\n", shift); 966 dst >>= shift; 967 dst &= atom_arg_mask[dst_align]; 968 dst >>= atom_arg_shift[dst_align]; 969 SDEBUG(" dst: "); 970 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 971 } 972 973 static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg) 974 { 975 uint8_t attr = U8((*ptr)++); 976 uint32_t dst, src, saved; 977 int dptr = *ptr; 978 SDEBUG(" dst: "); 979 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 980 SDEBUG(" src: "); 981 src = atom_get_src(ctx, attr, ptr); 982 dst -= src; 983 SDEBUG(" dst: "); 984 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 985 } 986 987 static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg) 988 { 989 uint8_t attr = U8((*ptr)++); 990 uint32_t src, val, target; 991 SDEBUG(" switch: "); 992 src = atom_get_src(ctx, attr, ptr); 993 while (U16(*ptr) != ATOM_CASE_END) 994 if (U8(*ptr) == ATOM_CASE_MAGIC) { 995 (*ptr)++; 996 SDEBUG(" case: "); 997 val = 998 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM, 999 ptr); 1000 target = U16(*ptr); 1001 if (val == src) { 1002 SDEBUG(" target: %04X\n", target); 1003 *ptr = ctx->start + target; 1004 return; 1005 } 1006 (*ptr) += 2; 1007 } else { 1008 DRM_INFO("Bad case.\n"); 1009 return; 1010 } 1011 (*ptr) += 2; 1012 } 1013 1014 static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg) 1015 { 1016 uint8_t attr = U8((*ptr)++); 1017 uint32_t dst, src; 1018 SDEBUG(" src1: "); 1019 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 1020 SDEBUG(" src2: "); 1021 src = atom_get_src(ctx, attr, ptr); 1022 ctx->ctx->cs_equal = ((dst & src) == 0); 1023 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE"); 1024 } 1025 1026 static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg) 1027 { 1028 uint8_t attr = U8((*ptr)++); 1029 uint32_t dst, src, saved; 1030 int dptr = *ptr; 1031 SDEBUG(" dst: "); 1032 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 1033 SDEBUG(" src: "); 1034 src = atom_get_src(ctx, attr, ptr); 1035 dst ^= src; 1036 SDEBUG(" dst: "); 1037 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 1038 } 1039 1040 static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg) 1041 { 1042 DRM_INFO("unimplemented!\n"); 1043 } 1044 1045 static struct { 1046 void (*func) (atom_exec_context *, int *, int); 1047 int arg; 1048 } opcode_table[ATOM_OP_CNT] = { 1049 { 1050 NULL, 0}, { 1051 atom_op_move, ATOM_ARG_REG}, { 1052 atom_op_move, ATOM_ARG_PS}, { 1053 atom_op_move, ATOM_ARG_WS}, { 1054 atom_op_move, ATOM_ARG_FB}, { 1055 atom_op_move, ATOM_ARG_PLL}, { 1056 atom_op_move, ATOM_ARG_MC}, { 1057 atom_op_and, ATOM_ARG_REG}, { 1058 atom_op_and, ATOM_ARG_PS}, { 1059 atom_op_and, ATOM_ARG_WS}, { 1060 atom_op_and, ATOM_ARG_FB}, { 1061 atom_op_and, ATOM_ARG_PLL}, { 1062 atom_op_and, ATOM_ARG_MC}, { 1063 atom_op_or, ATOM_ARG_REG}, { 1064 atom_op_or, ATOM_ARG_PS}, { 1065 atom_op_or, ATOM_ARG_WS}, { 1066 atom_op_or, ATOM_ARG_FB}, { 1067 atom_op_or, ATOM_ARG_PLL}, { 1068 atom_op_or, ATOM_ARG_MC}, { 1069 atom_op_shift_left, ATOM_ARG_REG}, { 1070 atom_op_shift_left, ATOM_ARG_PS}, { 1071 atom_op_shift_left, ATOM_ARG_WS}, { 1072 atom_op_shift_left, ATOM_ARG_FB}, { 1073 atom_op_shift_left, ATOM_ARG_PLL}, { 1074 atom_op_shift_left, ATOM_ARG_MC}, { 1075 atom_op_shift_right, ATOM_ARG_REG}, { 1076 atom_op_shift_right, ATOM_ARG_PS}, { 1077 atom_op_shift_right, ATOM_ARG_WS}, { 1078 atom_op_shift_right, ATOM_ARG_FB}, { 1079 atom_op_shift_right, ATOM_ARG_PLL}, { 1080 atom_op_shift_right, ATOM_ARG_MC}, { 1081 atom_op_mul, ATOM_ARG_REG}, { 1082 atom_op_mul, ATOM_ARG_PS}, { 1083 atom_op_mul, ATOM_ARG_WS}, { 1084 atom_op_mul, ATOM_ARG_FB}, { 1085 atom_op_mul, ATOM_ARG_PLL}, { 1086 atom_op_mul, ATOM_ARG_MC}, { 1087 atom_op_div, ATOM_ARG_REG}, { 1088 atom_op_div, ATOM_ARG_PS}, { 1089 atom_op_div, ATOM_ARG_WS}, { 1090 atom_op_div, ATOM_ARG_FB}, { 1091 atom_op_div, ATOM_ARG_PLL}, { 1092 atom_op_div, ATOM_ARG_MC}, { 1093 atom_op_add, ATOM_ARG_REG}, { 1094 atom_op_add, ATOM_ARG_PS}, { 1095 atom_op_add, ATOM_ARG_WS}, { 1096 atom_op_add, ATOM_ARG_FB}, { 1097 atom_op_add, ATOM_ARG_PLL}, { 1098 atom_op_add, ATOM_ARG_MC}, { 1099 atom_op_sub, ATOM_ARG_REG}, { 1100 atom_op_sub, ATOM_ARG_PS}, { 1101 atom_op_sub, ATOM_ARG_WS}, { 1102 atom_op_sub, ATOM_ARG_FB}, { 1103 atom_op_sub, ATOM_ARG_PLL}, { 1104 atom_op_sub, ATOM_ARG_MC}, { 1105 atom_op_setport, ATOM_PORT_ATI}, { 1106 atom_op_setport, ATOM_PORT_PCI}, { 1107 atom_op_setport, ATOM_PORT_SYSIO}, { 1108 atom_op_setregblock, 0}, { 1109 atom_op_setfbbase, 0}, { 1110 atom_op_compare, ATOM_ARG_REG}, { 1111 atom_op_compare, ATOM_ARG_PS}, { 1112 atom_op_compare, ATOM_ARG_WS}, { 1113 atom_op_compare, ATOM_ARG_FB}, { 1114 atom_op_compare, ATOM_ARG_PLL}, { 1115 atom_op_compare, ATOM_ARG_MC}, { 1116 atom_op_switch, 0}, { 1117 atom_op_jump, ATOM_COND_ALWAYS}, { 1118 atom_op_jump, ATOM_COND_EQUAL}, { 1119 atom_op_jump, ATOM_COND_BELOW}, { 1120 atom_op_jump, ATOM_COND_ABOVE}, { 1121 atom_op_jump, ATOM_COND_BELOWOREQUAL}, { 1122 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, { 1123 atom_op_jump, ATOM_COND_NOTEQUAL}, { 1124 atom_op_test, ATOM_ARG_REG}, { 1125 atom_op_test, ATOM_ARG_PS}, { 1126 atom_op_test, ATOM_ARG_WS}, { 1127 atom_op_test, ATOM_ARG_FB}, { 1128 atom_op_test, ATOM_ARG_PLL}, { 1129 atom_op_test, ATOM_ARG_MC}, { 1130 atom_op_delay, ATOM_UNIT_MILLISEC}, { 1131 atom_op_delay, ATOM_UNIT_MICROSEC}, { 1132 atom_op_calltable, 0}, { 1133 atom_op_repeat, 0}, { 1134 atom_op_clear, ATOM_ARG_REG}, { 1135 atom_op_clear, ATOM_ARG_PS}, { 1136 atom_op_clear, ATOM_ARG_WS}, { 1137 atom_op_clear, ATOM_ARG_FB}, { 1138 atom_op_clear, ATOM_ARG_PLL}, { 1139 atom_op_clear, ATOM_ARG_MC}, { 1140 atom_op_nop, 0}, { 1141 atom_op_eot, 0}, { 1142 atom_op_mask, ATOM_ARG_REG}, { 1143 atom_op_mask, ATOM_ARG_PS}, { 1144 atom_op_mask, ATOM_ARG_WS}, { 1145 atom_op_mask, ATOM_ARG_FB}, { 1146 atom_op_mask, ATOM_ARG_PLL}, { 1147 atom_op_mask, ATOM_ARG_MC}, { 1148 atom_op_postcard, 0}, { 1149 atom_op_beep, 0}, { 1150 atom_op_savereg, 0}, { 1151 atom_op_restorereg, 0}, { 1152 atom_op_setdatablock, 0}, { 1153 atom_op_xor, ATOM_ARG_REG}, { 1154 atom_op_xor, ATOM_ARG_PS}, { 1155 atom_op_xor, ATOM_ARG_WS}, { 1156 atom_op_xor, ATOM_ARG_FB}, { 1157 atom_op_xor, ATOM_ARG_PLL}, { 1158 atom_op_xor, ATOM_ARG_MC}, { 1159 atom_op_shl, ATOM_ARG_REG}, { 1160 atom_op_shl, ATOM_ARG_PS}, { 1161 atom_op_shl, ATOM_ARG_WS}, { 1162 atom_op_shl, ATOM_ARG_FB}, { 1163 atom_op_shl, ATOM_ARG_PLL}, { 1164 atom_op_shl, ATOM_ARG_MC}, { 1165 atom_op_shr, ATOM_ARG_REG}, { 1166 atom_op_shr, ATOM_ARG_PS}, { 1167 atom_op_shr, ATOM_ARG_WS}, { 1168 atom_op_shr, ATOM_ARG_FB}, { 1169 atom_op_shr, ATOM_ARG_PLL}, { 1170 atom_op_shr, ATOM_ARG_MC}, { 1171 atom_op_debug, 0},}; 1172 1173 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params) 1174 { 1175 int base = CU16(ctx->cmd_table + 4 + 2 * index); 1176 int len, ws, ps, ptr; 1177 unsigned char op; 1178 atom_exec_context ectx; 1179 int ret = 0; 1180 1181 if (!base) 1182 return -EINVAL; 1183 1184 len = CU16(base + ATOM_CT_SIZE_PTR); 1185 ws = CU8(base + ATOM_CT_WS_PTR); 1186 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK; 1187 ptr = base + ATOM_CT_CODE_PTR; 1188 1189 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps); 1190 1191 ectx.ctx = ctx; 1192 ectx.ps_shift = ps / 4; 1193 ectx.start = base; 1194 ectx.ps = params; 1195 ectx.abort = false; 1196 ectx.last_jump = 0; 1197 if (ws) 1198 ectx.ws = kzalloc(4 * ws, GFP_KERNEL); 1199 else 1200 ectx.ws = NULL; 1201 1202 debug_depth++; 1203 while (1) { 1204 op = CU8(ptr++); 1205 if (op < ATOM_OP_NAMES_CNT) 1206 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1); 1207 else 1208 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1); 1209 if (ectx.abort) { 1210 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n", 1211 base, len, ws, ps, ptr - 1); 1212 ret = -EINVAL; 1213 goto free; 1214 } 1215 1216 if (op < ATOM_OP_CNT && op > 0) 1217 opcode_table[op].func(&ectx, &ptr, 1218 opcode_table[op].arg); 1219 else 1220 break; 1221 1222 if (op == ATOM_OP_EOT) 1223 break; 1224 } 1225 debug_depth--; 1226 SDEBUG("<<\n"); 1227 1228 free: 1229 if (ws) 1230 kfree(ectx.ws); 1231 return ret; 1232 } 1233 1234 int atom_execute_table_scratch_unlocked(struct atom_context *ctx, int index, uint32_t * params) 1235 { 1236 int r; 1237 1238 mutex_lock(&ctx->mutex); 1239 /* reset data block */ 1240 ctx->data_block = 0; 1241 /* reset reg block */ 1242 ctx->reg_block = 0; 1243 /* reset fb window */ 1244 ctx->fb_base = 0; 1245 /* reset io mode */ 1246 ctx->io_mode = ATOM_IO_MM; 1247 /* reset divmul */ 1248 ctx->divmul[0] = 0; 1249 ctx->divmul[1] = 0; 1250 r = atom_execute_table_locked(ctx, index, params); 1251 mutex_unlock(&ctx->mutex); 1252 return r; 1253 } 1254 1255 int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params) 1256 { 1257 int r; 1258 mutex_lock(&ctx->scratch_mutex); 1259 r = atom_execute_table_scratch_unlocked(ctx, index, params); 1260 mutex_unlock(&ctx->scratch_mutex); 1261 return r; 1262 } 1263 1264 static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 }; 1265 1266 static void atom_index_iio(struct atom_context *ctx, int base) 1267 { 1268 ctx->iio = kzalloc(2 * 256, GFP_KERNEL); 1269 if (!ctx->iio) 1270 return; 1271 while (CU8(base) == ATOM_IIO_START) { 1272 ctx->iio[CU8(base + 1)] = base + 2; 1273 base += 2; 1274 while (CU8(base) != ATOM_IIO_END) 1275 base += atom_iio_len[CU8(base)]; 1276 base += 3; 1277 } 1278 } 1279 1280 struct atom_context *atom_parse(struct card_info *card, void *bios) 1281 { 1282 int base; 1283 struct atom_context *ctx = 1284 kzalloc(sizeof(struct atom_context), GFP_KERNEL); 1285 char *str; 1286 char name[512]; 1287 int i; 1288 1289 if (!ctx) 1290 return NULL; 1291 1292 ctx->card = card; 1293 ctx->bios = bios; 1294 1295 if (CU16(0) != ATOM_BIOS_MAGIC) { 1296 DRM_INFO("Invalid BIOS magic.\n"); 1297 kfree(ctx); 1298 return NULL; 1299 } 1300 if (strncmp 1301 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC, 1302 strlen(ATOM_ATI_MAGIC))) { 1303 DRM_INFO("Invalid ATI magic.\n"); 1304 kfree(ctx); 1305 return NULL; 1306 } 1307 1308 base = CU16(ATOM_ROM_TABLE_PTR); 1309 if (strncmp 1310 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC, 1311 strlen(ATOM_ROM_MAGIC))) { 1312 DRM_INFO("Invalid ATOM magic.\n"); 1313 kfree(ctx); 1314 return NULL; 1315 } 1316 1317 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR); 1318 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR); 1319 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4); 1320 if (!ctx->iio) { 1321 atom_destroy(ctx); 1322 return NULL; 1323 } 1324 1325 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR)); 1326 while (*str && ((*str == '\n') || (*str == '\r'))) 1327 str++; 1328 /* name string isn't always 0 terminated */ 1329 for (i = 0; i < 511; i++) { 1330 name[i] = str[i]; 1331 if (name[i] < '.' || name[i] > 'z') { 1332 name[i] = 0; 1333 break; 1334 } 1335 } 1336 DRM_INFO("ATOM BIOS: %s\n", name); 1337 1338 return ctx; 1339 } 1340 1341 int atom_asic_init(struct atom_context *ctx) 1342 { 1343 struct radeon_device *rdev = ctx->card->dev->dev_private; 1344 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR); 1345 uint32_t ps[16]; 1346 int ret; 1347 1348 memset(ps, 0, 64); 1349 1350 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR)); 1351 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR)); 1352 if (!ps[0] || !ps[1]) 1353 return 1; 1354 1355 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT)) 1356 return 1; 1357 ret = atom_execute_table(ctx, ATOM_CMD_INIT, ps); 1358 if (ret) 1359 return ret; 1360 1361 memset(ps, 0, 64); 1362 1363 if (rdev->family < CHIP_R600) { 1364 if (CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_SPDFANCNTL)) 1365 atom_execute_table(ctx, ATOM_CMD_SPDFANCNTL, ps); 1366 } 1367 return ret; 1368 } 1369 1370 void atom_destroy(struct atom_context *ctx) 1371 { 1372 kfree(ctx->iio); 1373 kfree(ctx); 1374 } 1375 1376 bool atom_parse_data_header(struct atom_context *ctx, int index, 1377 uint16_t * size, uint8_t * frev, uint8_t * crev, 1378 uint16_t * data_start) 1379 { 1380 int offset = index * 2 + 4; 1381 int idx = CU16(ctx->data_table + offset); 1382 u16 *mdt = (u16 *)((char *)ctx->bios + ctx->data_table + 4); 1383 1384 if (!mdt[index]) 1385 return false; 1386 1387 if (size) 1388 *size = CU16(idx); 1389 if (frev) 1390 *frev = CU8(idx + 2); 1391 if (crev) 1392 *crev = CU8(idx + 3); 1393 *data_start = idx; 1394 return true; 1395 } 1396 1397 bool atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev, 1398 uint8_t * crev) 1399 { 1400 int offset = index * 2 + 4; 1401 int idx = CU16(ctx->cmd_table + offset); 1402 u16 *mct = (u16 *)((char *)ctx->bios + ctx->cmd_table + 4); 1403 1404 if (!mct[index]) 1405 return false; 1406 1407 if (frev) 1408 *frev = CU8(idx + 2); 1409 if (crev) 1410 *crev = CU8(idx + 3); 1411 return true; 1412 } 1413 1414 int atom_allocate_fb_scratch(struct atom_context *ctx) 1415 { 1416 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware); 1417 uint16_t data_offset; 1418 int usage_bytes = 0; 1419 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage; 1420 1421 if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) { 1422 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)((char *)ctx->bios + data_offset); 1423 1424 DRM_DEBUG("atom firmware requested %08x %dkb\n", 1425 le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware), 1426 le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb)); 1427 1428 usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024; 1429 } 1430 ctx->scratch_size_bytes = 0; 1431 if (usage_bytes == 0) 1432 usage_bytes = 20 * 1024; 1433 /* allocate some scratch memory */ 1434 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL); 1435 if (!ctx->scratch) 1436 return -ENOMEM; 1437 ctx->scratch_size_bytes = usage_bytes; 1438 return 0; 1439 } 1440