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, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000, 70 0xFF000000 }; 71 static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 }; 72 73 static int atom_dst_to_src[8][4] = { 74 /* translate destination alignment field to the source alignment encoding */ 75 {0, 0, 0, 0}, 76 {1, 2, 3, 0}, 77 {1, 2, 3, 0}, 78 {1, 2, 3, 0}, 79 {4, 5, 6, 7}, 80 {4, 5, 6, 7}, 81 {4, 5, 6, 7}, 82 {4, 5, 6, 7}, 83 }; 84 static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 }; 85 86 static int debug_depth = 0; 87 #ifdef ATOM_DEBUG 88 static void debug_print_spaces(int n) 89 { 90 while (n--) 91 kprintf(" "); 92 } 93 94 #define ATOM_DEBUG_PRINT(...) do if (atom_debug) { kprintf(__FILE__ __VA_ARGS__); } while (0) 95 #define ATOM_SDEBUG_PRINT(...) do if (atom_debug) { kprintf(__FILE__); debug_print_spaces(debug_depth); kprintf(__VA_ARGS__); } while (0) 96 #else 97 #define ATOM_DEBUG_PRINT(...) do { } while (0) 98 #define ATOM_SDEBUG_PRINT(...) do { } while (0) 99 #endif 100 101 static uint32_t atom_iio_execute(struct atom_context *ctx, int base, 102 uint32_t index, uint32_t data) 103 { 104 struct radeon_device *rdev = ctx->card->dev->dev_private; 105 uint32_t temp = 0xCDCDCDCD; 106 107 while (1) 108 switch (CU8(base)) { 109 case ATOM_IIO_NOP: 110 base++; 111 break; 112 case ATOM_IIO_READ: 113 temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1)); 114 base += 3; 115 break; 116 case ATOM_IIO_WRITE: 117 if (rdev->family == CHIP_RV515) 118 (void)ctx->card->ioreg_read(ctx->card, CU16(base + 1)); 119 ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp); 120 base += 3; 121 break; 122 case ATOM_IIO_CLEAR: 123 temp &= 124 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 125 CU8(base + 2)); 126 base += 3; 127 break; 128 case ATOM_IIO_SET: 129 temp |= 130 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base + 131 2); 132 base += 3; 133 break; 134 case ATOM_IIO_MOVE_INDEX: 135 temp &= 136 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 137 CU8(base + 3)); 138 temp |= 139 ((index >> CU8(base + 2)) & 140 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 141 3); 142 base += 4; 143 break; 144 case ATOM_IIO_MOVE_DATA: 145 temp &= 146 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 147 CU8(base + 3)); 148 temp |= 149 ((data >> CU8(base + 2)) & 150 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 151 3); 152 base += 4; 153 break; 154 case ATOM_IIO_MOVE_ATTR: 155 temp &= 156 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 157 CU8(base + 3)); 158 temp |= 159 ((ctx-> 160 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 - 161 CU8 162 (base 163 + 164 1)))) 165 << CU8(base + 3); 166 base += 4; 167 break; 168 case ATOM_IIO_END: 169 return temp; 170 default: 171 DRM_INFO("Unknown IIO opcode.\n"); 172 return 0; 173 } 174 } 175 176 static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr, 177 int *ptr, uint32_t *saved, int print) 178 { 179 uint32_t idx, val = 0xCDCDCDCD, align, arg; 180 struct atom_context *gctx = ctx->ctx; 181 arg = attr & 7; 182 align = (attr >> 3) & 7; 183 switch (arg) { 184 case ATOM_ARG_REG: 185 idx = U16(*ptr); 186 (*ptr) += 2; 187 if (print) 188 ATOM_DEBUG_PRINT("REG[0x%04X]", idx); 189 idx += gctx->reg_block; 190 switch (gctx->io_mode) { 191 case ATOM_IO_MM: 192 val = gctx->card->reg_read(gctx->card, idx); 193 break; 194 case ATOM_IO_PCI: 195 DRM_INFO( 196 "PCI registers are not implemented.\n"); 197 return 0; 198 case ATOM_IO_SYSIO: 199 DRM_INFO( 200 "SYSIO registers are not implemented.\n"); 201 return 0; 202 default: 203 if (!(gctx->io_mode & 0x80)) { 204 DRM_INFO("Bad IO mode.\n"); 205 return 0; 206 } 207 if (!gctx->iio[gctx->io_mode & 0x7F]) { 208 DRM_INFO( 209 "Undefined indirect IO read method %d.\n", 210 gctx->io_mode & 0x7F); 211 return 0; 212 } 213 val = 214 atom_iio_execute(gctx, 215 gctx->iio[gctx->io_mode & 0x7F], 216 idx, 0); 217 } 218 break; 219 case ATOM_ARG_PS: 220 idx = U8(*ptr); 221 (*ptr)++; 222 /* get_unaligned_le32 avoids unaligned accesses from atombios 223 * tables, noticed on a DEC Alpha. */ 224 val = get_unaligned_le32((u32 *)&ctx->ps[idx]); 225 if (print) 226 ATOM_DEBUG_PRINT("PS[0x%02X,0x%04X]", idx, val); 227 break; 228 case ATOM_ARG_WS: 229 idx = U8(*ptr); 230 (*ptr)++; 231 if (print) 232 ATOM_DEBUG_PRINT("WS[0x%02X]", idx); 233 switch (idx) { 234 case ATOM_WS_QUOTIENT: 235 val = gctx->divmul[0]; 236 break; 237 case ATOM_WS_REMAINDER: 238 val = gctx->divmul[1]; 239 break; 240 case ATOM_WS_DATAPTR: 241 val = gctx->data_block; 242 break; 243 case ATOM_WS_SHIFT: 244 val = gctx->shift; 245 break; 246 case ATOM_WS_OR_MASK: 247 val = 1 << gctx->shift; 248 break; 249 case ATOM_WS_AND_MASK: 250 val = ~(1 << gctx->shift); 251 break; 252 case ATOM_WS_FB_WINDOW: 253 val = gctx->fb_base; 254 break; 255 case ATOM_WS_ATTRIBUTES: 256 val = gctx->io_attr; 257 break; 258 case ATOM_WS_REGPTR: 259 val = gctx->reg_block; 260 break; 261 default: 262 val = ctx->ws[idx]; 263 } 264 break; 265 case ATOM_ARG_ID: 266 idx = U16(*ptr); 267 (*ptr) += 2; 268 if (print) { 269 if (gctx->data_block) 270 ATOM_DEBUG_PRINT("ID[0x%04X+%04X]", idx, gctx->data_block); 271 else 272 ATOM_DEBUG_PRINT("ID[0x%04X]", idx); 273 } 274 val = U32(idx + gctx->data_block); 275 break; 276 case ATOM_ARG_FB: 277 idx = U8(*ptr); 278 (*ptr)++; 279 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) { 280 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n", 281 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes); 282 val = 0; 283 } else 284 val = gctx->scratch[(gctx->fb_base / 4) + idx]; 285 if (print) 286 ATOM_DEBUG_PRINT("FB[0x%02X]", idx); 287 break; 288 case ATOM_ARG_IMM: 289 switch (align) { 290 case ATOM_SRC_DWORD: 291 val = U32(*ptr); 292 (*ptr) += 4; 293 if (print) 294 ATOM_DEBUG_PRINT("IMM 0x%08X\n", val); 295 return val; 296 case ATOM_SRC_WORD0: 297 case ATOM_SRC_WORD8: 298 case ATOM_SRC_WORD16: 299 val = U16(*ptr); 300 (*ptr) += 2; 301 if (print) 302 ATOM_DEBUG_PRINT("IMM 0x%04X\n", val); 303 return val; 304 case ATOM_SRC_BYTE0: 305 case ATOM_SRC_BYTE8: 306 case ATOM_SRC_BYTE16: 307 case ATOM_SRC_BYTE24: 308 val = U8(*ptr); 309 (*ptr)++; 310 if (print) 311 ATOM_DEBUG_PRINT("IMM 0x%02X\n", val); 312 return val; 313 } 314 return 0; 315 case ATOM_ARG_PLL: 316 idx = U8(*ptr); 317 (*ptr)++; 318 if (print) 319 ATOM_DEBUG_PRINT("PLL[0x%02X]", idx); 320 val = gctx->card->pll_read(gctx->card, idx); 321 break; 322 case ATOM_ARG_MC: 323 idx = U8(*ptr); 324 (*ptr)++; 325 if (print) 326 ATOM_DEBUG_PRINT("MC[0x%02X]", idx); 327 val = gctx->card->mc_read(gctx->card, idx); 328 break; 329 } 330 if (saved) 331 *saved = val; 332 val &= atom_arg_mask[align]; 333 val >>= atom_arg_shift[align]; 334 if (print) 335 switch (align) { 336 case ATOM_SRC_DWORD: 337 ATOM_DEBUG_PRINT(".[31:0] -> 0x%08X\n", val); 338 break; 339 case ATOM_SRC_WORD0: 340 ATOM_DEBUG_PRINT(".[15:0] -> 0x%04X\n", val); 341 break; 342 case ATOM_SRC_WORD8: 343 ATOM_DEBUG_PRINT(".[23:8] -> 0x%04X\n", val); 344 break; 345 case ATOM_SRC_WORD16: 346 ATOM_DEBUG_PRINT(".[31:16] -> 0x%04X\n", val); 347 break; 348 case ATOM_SRC_BYTE0: 349 ATOM_DEBUG_PRINT(".[7:0] -> 0x%02X\n", val); 350 break; 351 case ATOM_SRC_BYTE8: 352 ATOM_DEBUG_PRINT(".[15:8] -> 0x%02X\n", val); 353 break; 354 case ATOM_SRC_BYTE16: 355 ATOM_DEBUG_PRINT(".[23:16] -> 0x%02X\n", val); 356 break; 357 case ATOM_SRC_BYTE24: 358 ATOM_DEBUG_PRINT(".[31:24] -> 0x%02X\n", val); 359 break; 360 } 361 return val; 362 } 363 364 static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr) 365 { 366 uint32_t align = (attr >> 3) & 7, arg = attr & 7; 367 switch (arg) { 368 case ATOM_ARG_REG: 369 case ATOM_ARG_ID: 370 (*ptr) += 2; 371 break; 372 case ATOM_ARG_PLL: 373 case ATOM_ARG_MC: 374 case ATOM_ARG_PS: 375 case ATOM_ARG_WS: 376 case ATOM_ARG_FB: 377 (*ptr)++; 378 break; 379 case ATOM_ARG_IMM: 380 switch (align) { 381 case ATOM_SRC_DWORD: 382 (*ptr) += 4; 383 return; 384 case ATOM_SRC_WORD0: 385 case ATOM_SRC_WORD8: 386 case ATOM_SRC_WORD16: 387 (*ptr) += 2; 388 return; 389 case ATOM_SRC_BYTE0: 390 case ATOM_SRC_BYTE8: 391 case ATOM_SRC_BYTE16: 392 case ATOM_SRC_BYTE24: 393 (*ptr)++; 394 return; 395 } 396 return; 397 } 398 } 399 400 static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr) 401 { 402 return atom_get_src_int(ctx, attr, ptr, NULL, 1); 403 } 404 405 static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr) 406 { 407 uint32_t val = 0xCDCDCDCD; 408 409 switch (align) { 410 case ATOM_SRC_DWORD: 411 val = U32(*ptr); 412 (*ptr) += 4; 413 break; 414 case ATOM_SRC_WORD0: 415 case ATOM_SRC_WORD8: 416 case ATOM_SRC_WORD16: 417 val = U16(*ptr); 418 (*ptr) += 2; 419 break; 420 case ATOM_SRC_BYTE0: 421 case ATOM_SRC_BYTE8: 422 case ATOM_SRC_BYTE16: 423 case ATOM_SRC_BYTE24: 424 val = U8(*ptr); 425 (*ptr)++; 426 break; 427 } 428 return val; 429 } 430 431 static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr, 432 int *ptr, uint32_t *saved, int print) 433 { 434 return atom_get_src_int(ctx, 435 arg | atom_dst_to_src[(attr >> 3) & 436 7][(attr >> 6) & 3] << 3, 437 ptr, saved, print); 438 } 439 440 static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr) 441 { 442 atom_skip_src_int(ctx, 443 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 444 3] << 3, ptr); 445 } 446 447 static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr, 448 int *ptr, uint32_t val, uint32_t saved) 449 { 450 uint32_t align = 451 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val = 452 val, idx; 453 struct atom_context *gctx = ctx->ctx; 454 old_val &= atom_arg_mask[align] >> atom_arg_shift[align]; 455 val <<= atom_arg_shift[align]; 456 val &= atom_arg_mask[align]; 457 saved &= ~atom_arg_mask[align]; 458 val |= saved; 459 switch (arg) { 460 case ATOM_ARG_REG: 461 idx = U16(*ptr); 462 (*ptr) += 2; 463 ATOM_DEBUG_PRINT("REG[0x%04X]", idx); 464 idx += gctx->reg_block; 465 switch (gctx->io_mode) { 466 case ATOM_IO_MM: 467 if (idx == 0) 468 gctx->card->reg_write(gctx->card, idx, 469 val << 2); 470 else 471 gctx->card->reg_write(gctx->card, idx, val); 472 break; 473 case ATOM_IO_PCI: 474 DRM_INFO( 475 "PCI registers are not implemented.\n"); 476 return; 477 case ATOM_IO_SYSIO: 478 DRM_INFO( 479 "SYSIO registers are not implemented.\n"); 480 return; 481 default: 482 if (!(gctx->io_mode & 0x80)) { 483 DRM_INFO("Bad IO mode.\n"); 484 return; 485 } 486 if (!gctx->iio[gctx->io_mode & 0xFF]) { 487 DRM_INFO( 488 "Undefined indirect IO write method %d.\n", 489 gctx->io_mode & 0x7F); 490 return; 491 } 492 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF], 493 idx, val); 494 } 495 break; 496 case ATOM_ARG_PS: 497 idx = U8(*ptr); 498 (*ptr)++; 499 ATOM_DEBUG_PRINT("PS[0x%02X]", idx); 500 ctx->ps[idx] = cpu_to_le32(val); 501 break; 502 case ATOM_ARG_WS: 503 idx = U8(*ptr); 504 (*ptr)++; 505 ATOM_DEBUG_PRINT("WS[0x%02X]", idx); 506 switch (idx) { 507 case ATOM_WS_QUOTIENT: 508 gctx->divmul[0] = val; 509 break; 510 case ATOM_WS_REMAINDER: 511 gctx->divmul[1] = val; 512 break; 513 case ATOM_WS_DATAPTR: 514 gctx->data_block = val; 515 break; 516 case ATOM_WS_SHIFT: 517 gctx->shift = val; 518 break; 519 case ATOM_WS_OR_MASK: 520 case ATOM_WS_AND_MASK: 521 break; 522 case ATOM_WS_FB_WINDOW: 523 gctx->fb_base = val; 524 break; 525 case ATOM_WS_ATTRIBUTES: 526 gctx->io_attr = val; 527 break; 528 case ATOM_WS_REGPTR: 529 gctx->reg_block = val; 530 break; 531 default: 532 ctx->ws[idx] = val; 533 } 534 break; 535 case ATOM_ARG_FB: 536 idx = U8(*ptr); 537 (*ptr)++; 538 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) { 539 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n", 540 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes); 541 } else 542 gctx->scratch[(gctx->fb_base / 4) + idx] = val; 543 ATOM_DEBUG_PRINT("FB[0x%02X]", idx); 544 break; 545 case ATOM_ARG_PLL: 546 idx = U8(*ptr); 547 (*ptr)++; 548 ATOM_DEBUG_PRINT("PLL[0x%02X]", idx); 549 gctx->card->pll_write(gctx->card, idx, val); 550 break; 551 case ATOM_ARG_MC: 552 idx = U8(*ptr); 553 (*ptr)++; 554 ATOM_DEBUG_PRINT("MC[0x%02X]", idx); 555 gctx->card->mc_write(gctx->card, idx, val); 556 return; 557 } 558 switch (align) { 559 case ATOM_SRC_DWORD: 560 ATOM_DEBUG_PRINT(".[31:0] <- 0x%08X\n", old_val); 561 break; 562 case ATOM_SRC_WORD0: 563 ATOM_DEBUG_PRINT(".[15:0] <- 0x%04X\n", old_val); 564 break; 565 case ATOM_SRC_WORD8: 566 ATOM_DEBUG_PRINT(".[23:8] <- 0x%04X\n", old_val); 567 break; 568 case ATOM_SRC_WORD16: 569 ATOM_DEBUG_PRINT(".[31:16] <- 0x%04X\n", old_val); 570 break; 571 case ATOM_SRC_BYTE0: 572 ATOM_DEBUG_PRINT(".[7:0] <- 0x%02X\n", old_val); 573 break; 574 case ATOM_SRC_BYTE8: 575 ATOM_DEBUG_PRINT(".[15:8] <- 0x%02X\n", old_val); 576 break; 577 case ATOM_SRC_BYTE16: 578 ATOM_DEBUG_PRINT(".[23:16] <- 0x%02X\n", old_val); 579 break; 580 case ATOM_SRC_BYTE24: 581 ATOM_DEBUG_PRINT(".[31:24] <- 0x%02X\n", old_val); 582 break; 583 } 584 } 585 586 static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg) 587 { 588 uint8_t attr = U8((*ptr)++); 589 uint32_t dst, src, saved; 590 int dptr = *ptr; 591 ATOM_SDEBUG_PRINT(" dst: "); 592 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 593 ATOM_SDEBUG_PRINT(" src: "); 594 src = atom_get_src(ctx, attr, ptr); 595 dst += src; 596 ATOM_SDEBUG_PRINT(" dst: "); 597 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 598 } 599 600 static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg) 601 { 602 uint8_t attr = U8((*ptr)++); 603 uint32_t dst, src, saved; 604 int dptr = *ptr; 605 ATOM_SDEBUG_PRINT(" dst: "); 606 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 607 ATOM_SDEBUG_PRINT(" src: "); 608 src = atom_get_src(ctx, attr, ptr); 609 dst &= src; 610 ATOM_SDEBUG_PRINT(" dst: "); 611 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 612 } 613 614 static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg) 615 { 616 DRM_INFO("ATOM BIOS beeped!\n"); 617 } 618 619 static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg) 620 { 621 int idx = U8((*ptr)++); 622 int r = 0; 623 624 if (idx < ATOM_TABLE_NAMES_CNT) 625 ATOM_SDEBUG_PRINT(" table: %d (%s)\n", idx, atom_table_names[idx]); 626 else 627 ATOM_SDEBUG_PRINT(" table: %d\n", idx); 628 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx)) 629 r = atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift); 630 if (r) { 631 ctx->abort = true; 632 } 633 } 634 635 static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg) 636 { 637 uint8_t attr = U8((*ptr)++); 638 uint32_t saved; 639 int dptr = *ptr; 640 attr &= 0x38; 641 attr |= atom_def_dst[attr >> 3] << 6; 642 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 643 ATOM_SDEBUG_PRINT(" dst: "); 644 atom_put_dst(ctx, arg, attr, &dptr, 0, saved); 645 } 646 647 static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg) 648 { 649 uint8_t attr = U8((*ptr)++); 650 uint32_t dst, src; 651 ATOM_SDEBUG_PRINT(" src1: "); 652 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 653 ATOM_SDEBUG_PRINT(" src2: "); 654 src = atom_get_src(ctx, attr, ptr); 655 ctx->ctx->cs_equal = (dst == src); 656 ctx->ctx->cs_above = (dst > src); 657 ATOM_SDEBUG_PRINT(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE", 658 ctx->ctx->cs_above ? "GT" : "LE"); 659 } 660 661 static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg) 662 { 663 unsigned count = U8((*ptr)++); 664 ATOM_SDEBUG_PRINT(" count: %d\n", count); 665 if (arg == ATOM_UNIT_MICROSEC) 666 udelay(count); 667 else if (!drm_can_sleep()) 668 mdelay(count); 669 else 670 msleep(count); 671 } 672 673 static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg) 674 { 675 uint8_t attr = U8((*ptr)++); 676 uint32_t dst, src; 677 ATOM_SDEBUG_PRINT(" src1: "); 678 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 679 ATOM_SDEBUG_PRINT(" src2: "); 680 src = atom_get_src(ctx, attr, ptr); 681 if (src != 0) { 682 ctx->ctx->divmul[0] = dst / src; 683 ctx->ctx->divmul[1] = dst % src; 684 } else { 685 ctx->ctx->divmul[0] = 0; 686 ctx->ctx->divmul[1] = 0; 687 } 688 } 689 690 static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg) 691 { 692 /* functionally, a nop */ 693 } 694 695 static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg) 696 { 697 int execute = 0, target = U16(*ptr); 698 unsigned long cjiffies; 699 700 (*ptr) += 2; 701 switch (arg) { 702 case ATOM_COND_ABOVE: 703 execute = ctx->ctx->cs_above; 704 break; 705 case ATOM_COND_ABOVEOREQUAL: 706 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal; 707 break; 708 case ATOM_COND_ALWAYS: 709 execute = 1; 710 break; 711 case ATOM_COND_BELOW: 712 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal); 713 break; 714 case ATOM_COND_BELOWOREQUAL: 715 execute = !ctx->ctx->cs_above; 716 break; 717 case ATOM_COND_EQUAL: 718 execute = ctx->ctx->cs_equal; 719 break; 720 case ATOM_COND_NOTEQUAL: 721 execute = !ctx->ctx->cs_equal; 722 break; 723 } 724 if (arg != ATOM_COND_ALWAYS) 725 ATOM_SDEBUG_PRINT(" taken: %s\n", execute ? "yes" : "no"); 726 ATOM_SDEBUG_PRINT(" target: 0x%04X\n", target); 727 if (execute) { 728 if (ctx->last_jump == (ctx->start + target)) { 729 cjiffies = jiffies; 730 if (time_after(cjiffies, ctx->last_jump_jiffies)) { 731 cjiffies -= ctx->last_jump_jiffies; 732 if ((jiffies_to_msecs(cjiffies) > 5000)) { 733 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n"); 734 ctx->abort = true; 735 } 736 } else { 737 /* jiffies wrap around we will just wait a little longer */ 738 ctx->last_jump_jiffies = jiffies; 739 } 740 } else { 741 ctx->last_jump = ctx->start + target; 742 ctx->last_jump_jiffies = jiffies; 743 } 744 *ptr = ctx->start + target; 745 } 746 } 747 748 static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg) 749 { 750 uint8_t attr = U8((*ptr)++); 751 uint32_t dst, mask, src, saved; 752 int dptr = *ptr; 753 ATOM_SDEBUG_PRINT(" dst: "); 754 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 755 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr); 756 ATOM_SDEBUG_PRINT(" mask: 0x%08x", mask); 757 ATOM_SDEBUG_PRINT(" src: "); 758 src = atom_get_src(ctx, attr, ptr); 759 dst &= mask; 760 dst |= src; 761 ATOM_SDEBUG_PRINT(" dst: "); 762 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 763 } 764 765 static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg) 766 { 767 uint8_t attr = U8((*ptr)++); 768 uint32_t src, saved; 769 int dptr = *ptr; 770 if (((attr >> 3) & 7) != ATOM_SRC_DWORD) 771 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 772 else { 773 atom_skip_dst(ctx, arg, attr, ptr); 774 saved = 0xCDCDCDCD; 775 } 776 ATOM_SDEBUG_PRINT(" src: "); 777 src = atom_get_src(ctx, attr, ptr); 778 ATOM_SDEBUG_PRINT(" dst: "); 779 atom_put_dst(ctx, arg, attr, &dptr, src, saved); 780 } 781 782 static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg) 783 { 784 uint8_t attr = U8((*ptr)++); 785 uint32_t dst, src; 786 ATOM_SDEBUG_PRINT(" src1: "); 787 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 788 ATOM_SDEBUG_PRINT(" src2: "); 789 src = atom_get_src(ctx, attr, ptr); 790 ctx->ctx->divmul[0] = dst * src; 791 } 792 793 static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg) 794 { 795 /* nothing */ 796 } 797 798 static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg) 799 { 800 uint8_t attr = U8((*ptr)++); 801 uint32_t dst, src, saved; 802 int dptr = *ptr; 803 ATOM_SDEBUG_PRINT(" dst: "); 804 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 805 ATOM_SDEBUG_PRINT(" src: "); 806 src = atom_get_src(ctx, attr, ptr); 807 dst |= src; 808 ATOM_SDEBUG_PRINT(" dst: "); 809 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 810 } 811 812 static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg) 813 { 814 uint8_t val = U8((*ptr)++); 815 ATOM_SDEBUG_PRINT("POST card output: 0x%02X\n", val); 816 } 817 818 static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg) 819 { 820 DRM_INFO("unimplemented!\n"); 821 } 822 823 static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg) 824 { 825 DRM_INFO("unimplemented!\n"); 826 } 827 828 static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg) 829 { 830 DRM_INFO("unimplemented!\n"); 831 } 832 833 static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg) 834 { 835 int idx = U8(*ptr); 836 (*ptr)++; 837 ATOM_SDEBUG_PRINT(" block: %d\n", idx); 838 if (!idx) 839 ctx->ctx->data_block = 0; 840 else if (idx == 255) 841 ctx->ctx->data_block = ctx->start; 842 else 843 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx); 844 ATOM_SDEBUG_PRINT(" base: 0x%04X\n", ctx->ctx->data_block); 845 } 846 847 static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg) 848 { 849 uint8_t attr = U8((*ptr)++); 850 ATOM_SDEBUG_PRINT(" fb_base: "); 851 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr); 852 } 853 854 static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg) 855 { 856 int port; 857 switch (arg) { 858 case ATOM_PORT_ATI: 859 port = U16(*ptr); 860 if (port < ATOM_IO_NAMES_CNT) 861 ATOM_SDEBUG_PRINT(" port: %d (%s)\n", port, atom_io_names[port]); 862 else 863 ATOM_SDEBUG_PRINT(" port: %d\n", port); 864 if (!port) 865 ctx->ctx->io_mode = ATOM_IO_MM; 866 else 867 ctx->ctx->io_mode = ATOM_IO_IIO | port; 868 (*ptr) += 2; 869 break; 870 case ATOM_PORT_PCI: 871 ctx->ctx->io_mode = ATOM_IO_PCI; 872 (*ptr)++; 873 break; 874 case ATOM_PORT_SYSIO: 875 ctx->ctx->io_mode = ATOM_IO_SYSIO; 876 (*ptr)++; 877 break; 878 } 879 } 880 881 static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg) 882 { 883 ctx->ctx->reg_block = U16(*ptr); 884 (*ptr) += 2; 885 ATOM_SDEBUG_PRINT(" base: 0x%04X\n", ctx->ctx->reg_block); 886 } 887 888 static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg) 889 { 890 uint8_t attr = U8((*ptr)++), shift; 891 uint32_t saved, dst; 892 int dptr = *ptr; 893 attr &= 0x38; 894 attr |= atom_def_dst[attr >> 3] << 6; 895 ATOM_SDEBUG_PRINT(" dst: "); 896 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 897 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr); 898 ATOM_SDEBUG_PRINT(" shift: %d\n", shift); 899 dst <<= shift; 900 ATOM_SDEBUG_PRINT(" dst: "); 901 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 902 } 903 904 static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg) 905 { 906 uint8_t attr = U8((*ptr)++), shift; 907 uint32_t saved, dst; 908 int dptr = *ptr; 909 attr &= 0x38; 910 attr |= atom_def_dst[attr >> 3] << 6; 911 ATOM_SDEBUG_PRINT(" dst: "); 912 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 913 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr); 914 ATOM_SDEBUG_PRINT(" shift: %d\n", shift); 915 dst >>= shift; 916 ATOM_SDEBUG_PRINT(" dst: "); 917 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 918 } 919 920 static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg) 921 { 922 uint8_t attr = U8((*ptr)++), shift; 923 uint32_t saved, dst; 924 int dptr = *ptr; 925 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3]; 926 ATOM_SDEBUG_PRINT(" dst: "); 927 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 928 /* op needs to full dst value */ 929 dst = saved; 930 shift = atom_get_src(ctx, attr, ptr); 931 ATOM_SDEBUG_PRINT(" shift: %d\n", shift); 932 dst <<= shift; 933 dst &= atom_arg_mask[dst_align]; 934 dst >>= atom_arg_shift[dst_align]; 935 ATOM_SDEBUG_PRINT(" dst: "); 936 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 937 } 938 939 static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg) 940 { 941 uint8_t attr = U8((*ptr)++), shift; 942 uint32_t saved, dst; 943 int dptr = *ptr; 944 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3]; 945 ATOM_SDEBUG_PRINT(" dst: "); 946 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 947 /* op needs to full dst value */ 948 dst = saved; 949 shift = atom_get_src(ctx, attr, ptr); 950 ATOM_SDEBUG_PRINT(" shift: %d\n", shift); 951 dst >>= shift; 952 dst &= atom_arg_mask[dst_align]; 953 dst >>= atom_arg_shift[dst_align]; 954 ATOM_SDEBUG_PRINT(" dst: "); 955 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 956 } 957 958 static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg) 959 { 960 uint8_t attr = U8((*ptr)++); 961 uint32_t dst, src, saved; 962 int dptr = *ptr; 963 ATOM_SDEBUG_PRINT(" dst: "); 964 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 965 ATOM_SDEBUG_PRINT(" src: "); 966 src = atom_get_src(ctx, attr, ptr); 967 dst -= src; 968 ATOM_SDEBUG_PRINT(" dst: "); 969 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 970 } 971 972 static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg) 973 { 974 uint8_t attr = U8((*ptr)++); 975 uint32_t src, val, target; 976 ATOM_SDEBUG_PRINT(" switch: "); 977 src = atom_get_src(ctx, attr, ptr); 978 while (U16(*ptr) != ATOM_CASE_END) 979 if (U8(*ptr) == ATOM_CASE_MAGIC) { 980 (*ptr)++; 981 ATOM_SDEBUG_PRINT(" case: "); 982 val = 983 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM, 984 ptr); 985 target = U16(*ptr); 986 if (val == src) { 987 ATOM_SDEBUG_PRINT(" target: %04X\n", target); 988 *ptr = ctx->start + target; 989 return; 990 } 991 (*ptr) += 2; 992 } else { 993 DRM_INFO("Bad case.\n"); 994 return; 995 } 996 (*ptr) += 2; 997 } 998 999 static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg) 1000 { 1001 uint8_t attr = U8((*ptr)++); 1002 uint32_t dst, src; 1003 ATOM_SDEBUG_PRINT(" src1: "); 1004 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 1005 ATOM_SDEBUG_PRINT(" src2: "); 1006 src = atom_get_src(ctx, attr, ptr); 1007 ctx->ctx->cs_equal = ((dst & src) == 0); 1008 ATOM_SDEBUG_PRINT(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE"); 1009 } 1010 1011 static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg) 1012 { 1013 uint8_t attr = U8((*ptr)++); 1014 uint32_t dst, src, saved; 1015 int dptr = *ptr; 1016 ATOM_SDEBUG_PRINT(" dst: "); 1017 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 1018 ATOM_SDEBUG_PRINT(" src: "); 1019 src = atom_get_src(ctx, attr, ptr); 1020 dst ^= src; 1021 ATOM_SDEBUG_PRINT(" dst: "); 1022 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 1023 } 1024 1025 static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg) 1026 { 1027 DRM_INFO("unimplemented!\n"); 1028 } 1029 1030 static struct { 1031 void (*func) (atom_exec_context *, int *, int); 1032 int arg; 1033 } opcode_table[ATOM_OP_CNT] = { 1034 { 1035 NULL, 0}, { 1036 atom_op_move, ATOM_ARG_REG}, { 1037 atom_op_move, ATOM_ARG_PS}, { 1038 atom_op_move, ATOM_ARG_WS}, { 1039 atom_op_move, ATOM_ARG_FB}, { 1040 atom_op_move, ATOM_ARG_PLL}, { 1041 atom_op_move, ATOM_ARG_MC}, { 1042 atom_op_and, ATOM_ARG_REG}, { 1043 atom_op_and, ATOM_ARG_PS}, { 1044 atom_op_and, ATOM_ARG_WS}, { 1045 atom_op_and, ATOM_ARG_FB}, { 1046 atom_op_and, ATOM_ARG_PLL}, { 1047 atom_op_and, ATOM_ARG_MC}, { 1048 atom_op_or, ATOM_ARG_REG}, { 1049 atom_op_or, ATOM_ARG_PS}, { 1050 atom_op_or, ATOM_ARG_WS}, { 1051 atom_op_or, ATOM_ARG_FB}, { 1052 atom_op_or, ATOM_ARG_PLL}, { 1053 atom_op_or, ATOM_ARG_MC}, { 1054 atom_op_shift_left, ATOM_ARG_REG}, { 1055 atom_op_shift_left, ATOM_ARG_PS}, { 1056 atom_op_shift_left, ATOM_ARG_WS}, { 1057 atom_op_shift_left, ATOM_ARG_FB}, { 1058 atom_op_shift_left, ATOM_ARG_PLL}, { 1059 atom_op_shift_left, ATOM_ARG_MC}, { 1060 atom_op_shift_right, ATOM_ARG_REG}, { 1061 atom_op_shift_right, ATOM_ARG_PS}, { 1062 atom_op_shift_right, ATOM_ARG_WS}, { 1063 atom_op_shift_right, ATOM_ARG_FB}, { 1064 atom_op_shift_right, ATOM_ARG_PLL}, { 1065 atom_op_shift_right, ATOM_ARG_MC}, { 1066 atom_op_mul, ATOM_ARG_REG}, { 1067 atom_op_mul, ATOM_ARG_PS}, { 1068 atom_op_mul, ATOM_ARG_WS}, { 1069 atom_op_mul, ATOM_ARG_FB}, { 1070 atom_op_mul, ATOM_ARG_PLL}, { 1071 atom_op_mul, ATOM_ARG_MC}, { 1072 atom_op_div, ATOM_ARG_REG}, { 1073 atom_op_div, ATOM_ARG_PS}, { 1074 atom_op_div, ATOM_ARG_WS}, { 1075 atom_op_div, ATOM_ARG_FB}, { 1076 atom_op_div, ATOM_ARG_PLL}, { 1077 atom_op_div, ATOM_ARG_MC}, { 1078 atom_op_add, ATOM_ARG_REG}, { 1079 atom_op_add, ATOM_ARG_PS}, { 1080 atom_op_add, ATOM_ARG_WS}, { 1081 atom_op_add, ATOM_ARG_FB}, { 1082 atom_op_add, ATOM_ARG_PLL}, { 1083 atom_op_add, ATOM_ARG_MC}, { 1084 atom_op_sub, ATOM_ARG_REG}, { 1085 atom_op_sub, ATOM_ARG_PS}, { 1086 atom_op_sub, ATOM_ARG_WS}, { 1087 atom_op_sub, ATOM_ARG_FB}, { 1088 atom_op_sub, ATOM_ARG_PLL}, { 1089 atom_op_sub, ATOM_ARG_MC}, { 1090 atom_op_setport, ATOM_PORT_ATI}, { 1091 atom_op_setport, ATOM_PORT_PCI}, { 1092 atom_op_setport, ATOM_PORT_SYSIO}, { 1093 atom_op_setregblock, 0}, { 1094 atom_op_setfbbase, 0}, { 1095 atom_op_compare, ATOM_ARG_REG}, { 1096 atom_op_compare, ATOM_ARG_PS}, { 1097 atom_op_compare, ATOM_ARG_WS}, { 1098 atom_op_compare, ATOM_ARG_FB}, { 1099 atom_op_compare, ATOM_ARG_PLL}, { 1100 atom_op_compare, ATOM_ARG_MC}, { 1101 atom_op_switch, 0}, { 1102 atom_op_jump, ATOM_COND_ALWAYS}, { 1103 atom_op_jump, ATOM_COND_EQUAL}, { 1104 atom_op_jump, ATOM_COND_BELOW}, { 1105 atom_op_jump, ATOM_COND_ABOVE}, { 1106 atom_op_jump, ATOM_COND_BELOWOREQUAL}, { 1107 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, { 1108 atom_op_jump, ATOM_COND_NOTEQUAL}, { 1109 atom_op_test, ATOM_ARG_REG}, { 1110 atom_op_test, ATOM_ARG_PS}, { 1111 atom_op_test, ATOM_ARG_WS}, { 1112 atom_op_test, ATOM_ARG_FB}, { 1113 atom_op_test, ATOM_ARG_PLL}, { 1114 atom_op_test, ATOM_ARG_MC}, { 1115 atom_op_delay, ATOM_UNIT_MILLISEC}, { 1116 atom_op_delay, ATOM_UNIT_MICROSEC}, { 1117 atom_op_calltable, 0}, { 1118 atom_op_repeat, 0}, { 1119 atom_op_clear, ATOM_ARG_REG}, { 1120 atom_op_clear, ATOM_ARG_PS}, { 1121 atom_op_clear, ATOM_ARG_WS}, { 1122 atom_op_clear, ATOM_ARG_FB}, { 1123 atom_op_clear, ATOM_ARG_PLL}, { 1124 atom_op_clear, ATOM_ARG_MC}, { 1125 atom_op_nop, 0}, { 1126 atom_op_eot, 0}, { 1127 atom_op_mask, ATOM_ARG_REG}, { 1128 atom_op_mask, ATOM_ARG_PS}, { 1129 atom_op_mask, ATOM_ARG_WS}, { 1130 atom_op_mask, ATOM_ARG_FB}, { 1131 atom_op_mask, ATOM_ARG_PLL}, { 1132 atom_op_mask, ATOM_ARG_MC}, { 1133 atom_op_postcard, 0}, { 1134 atom_op_beep, 0}, { 1135 atom_op_savereg, 0}, { 1136 atom_op_restorereg, 0}, { 1137 atom_op_setdatablock, 0}, { 1138 atom_op_xor, ATOM_ARG_REG}, { 1139 atom_op_xor, ATOM_ARG_PS}, { 1140 atom_op_xor, ATOM_ARG_WS}, { 1141 atom_op_xor, ATOM_ARG_FB}, { 1142 atom_op_xor, ATOM_ARG_PLL}, { 1143 atom_op_xor, ATOM_ARG_MC}, { 1144 atom_op_shl, ATOM_ARG_REG}, { 1145 atom_op_shl, ATOM_ARG_PS}, { 1146 atom_op_shl, ATOM_ARG_WS}, { 1147 atom_op_shl, ATOM_ARG_FB}, { 1148 atom_op_shl, ATOM_ARG_PLL}, { 1149 atom_op_shl, ATOM_ARG_MC}, { 1150 atom_op_shr, ATOM_ARG_REG}, { 1151 atom_op_shr, ATOM_ARG_PS}, { 1152 atom_op_shr, ATOM_ARG_WS}, { 1153 atom_op_shr, ATOM_ARG_FB}, { 1154 atom_op_shr, ATOM_ARG_PLL}, { 1155 atom_op_shr, ATOM_ARG_MC}, { 1156 atom_op_debug, 0},}; 1157 1158 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params) 1159 { 1160 int base = CU16(ctx->cmd_table + 4 + 2 * index); 1161 int len, ws, ps, ptr; 1162 unsigned char op; 1163 atom_exec_context ectx; 1164 int ret = 0; 1165 1166 if (!base) 1167 return -EINVAL; 1168 1169 len = CU16(base + ATOM_CT_SIZE_PTR); 1170 ws = CU8(base + ATOM_CT_WS_PTR); 1171 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK; 1172 ptr = base + ATOM_CT_CODE_PTR; 1173 1174 ATOM_SDEBUG_PRINT(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps); 1175 1176 ectx.ctx = ctx; 1177 ectx.ps_shift = ps / 4; 1178 ectx.start = base; 1179 ectx.ps = params; 1180 ectx.abort = false; 1181 ectx.last_jump = 0; 1182 if (ws) 1183 ectx.ws = kzalloc(4 * ws, GFP_KERNEL); 1184 else 1185 ectx.ws = NULL; 1186 1187 debug_depth++; 1188 while (1) { 1189 op = CU8(ptr++); 1190 if (op < ATOM_OP_NAMES_CNT) 1191 ATOM_SDEBUG_PRINT("%s @ 0x%04X\n", atom_op_names[op], ptr - 1); 1192 else 1193 ATOM_SDEBUG_PRINT("[%d] @ 0x%04X\n", op, ptr - 1); 1194 if (ectx.abort) { 1195 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n", 1196 base, len, ws, ps, ptr - 1); 1197 ret = -EINVAL; 1198 goto free; 1199 } 1200 1201 if (op < ATOM_OP_CNT && op > 0) 1202 opcode_table[op].func(&ectx, &ptr, 1203 opcode_table[op].arg); 1204 else 1205 break; 1206 1207 if (op == ATOM_OP_EOT) 1208 break; 1209 } 1210 debug_depth--; 1211 ATOM_SDEBUG_PRINT("<<\n"); 1212 1213 free: 1214 if (ws) 1215 kfree(ectx.ws); 1216 return ret; 1217 } 1218 1219 int atom_execute_table_scratch_unlocked(struct atom_context *ctx, int index, uint32_t * params) 1220 { 1221 int r; 1222 1223 lockmgr(&ctx->mutex, LK_EXCLUSIVE); 1224 /* reset data block */ 1225 ctx->data_block = 0; 1226 /* reset reg block */ 1227 ctx->reg_block = 0; 1228 /* reset fb window */ 1229 ctx->fb_base = 0; 1230 /* reset io mode */ 1231 ctx->io_mode = ATOM_IO_MM; 1232 /* reset divmul */ 1233 ctx->divmul[0] = 0; 1234 ctx->divmul[1] = 0; 1235 r = atom_execute_table_locked(ctx, index, params); 1236 lockmgr(&ctx->mutex, LK_RELEASE); 1237 return r; 1238 } 1239 1240 int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params) 1241 { 1242 int r; 1243 lockmgr(&ctx->scratch_mutex, LK_EXCLUSIVE); 1244 r = atom_execute_table_scratch_unlocked(ctx, index, params); 1245 lockmgr(&ctx->scratch_mutex, LK_RELEASE); 1246 return r; 1247 } 1248 1249 static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 }; 1250 1251 static void atom_index_iio(struct atom_context *ctx, int base) 1252 { 1253 ctx->iio = kzalloc(2 * 256, GFP_KERNEL); 1254 if (!ctx->iio) 1255 return; 1256 while (CU8(base) == ATOM_IIO_START) { 1257 ctx->iio[CU8(base + 1)] = base + 2; 1258 base += 2; 1259 while (CU8(base) != ATOM_IIO_END) 1260 base += atom_iio_len[CU8(base)]; 1261 base += 3; 1262 } 1263 } 1264 1265 struct atom_context *atom_parse(struct card_info *card, void *bios) 1266 { 1267 int base; 1268 struct atom_context *ctx = 1269 kzalloc(sizeof(struct atom_context), GFP_KERNEL); 1270 char *str; 1271 char name[512]; 1272 int i; 1273 1274 if (!ctx) 1275 return NULL; 1276 1277 ctx->card = card; 1278 ctx->bios = bios; 1279 1280 if (CU16(0) != ATOM_BIOS_MAGIC) { 1281 DRM_INFO("Invalid BIOS magic.\n"); 1282 kfree(ctx); 1283 return NULL; 1284 } 1285 if (strncmp 1286 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC, 1287 strlen(ATOM_ATI_MAGIC))) { 1288 DRM_INFO("Invalid ATI magic.\n"); 1289 kfree(ctx); 1290 return NULL; 1291 } 1292 1293 base = CU16(ATOM_ROM_TABLE_PTR); 1294 if (strncmp 1295 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC, 1296 strlen(ATOM_ROM_MAGIC))) { 1297 DRM_INFO("Invalid ATOM magic.\n"); 1298 kfree(ctx); 1299 return NULL; 1300 } 1301 1302 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR); 1303 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR); 1304 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4); 1305 if (!ctx->iio) { 1306 atom_destroy(ctx); 1307 return NULL; 1308 } 1309 1310 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR)); 1311 while (*str && ((*str == '\n') || (*str == '\r'))) 1312 str++; 1313 /* name string isn't always 0 terminated */ 1314 for (i = 0; i < 511; i++) { 1315 name[i] = str[i]; 1316 if (name[i] < '.' || name[i] > 'z') { 1317 name[i] = 0; 1318 break; 1319 } 1320 } 1321 DRM_INFO("ATOM BIOS: %s\n", name); 1322 1323 return ctx; 1324 } 1325 1326 int atom_asic_init(struct atom_context *ctx) 1327 { 1328 struct radeon_device *rdev = ctx->card->dev->dev_private; 1329 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR); 1330 uint32_t ps[16]; 1331 int ret; 1332 1333 memset(ps, 0, 64); 1334 1335 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR)); 1336 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR)); 1337 if (!ps[0] || !ps[1]) 1338 return 1; 1339 1340 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT)) 1341 return 1; 1342 ret = atom_execute_table(ctx, ATOM_CMD_INIT, ps); 1343 if (ret) 1344 return ret; 1345 1346 memset(ps, 0, 64); 1347 1348 if (rdev->family < CHIP_R600) { 1349 if (CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_SPDFANCNTL)) 1350 atom_execute_table(ctx, ATOM_CMD_SPDFANCNTL, ps); 1351 } 1352 return ret; 1353 } 1354 1355 void atom_destroy(struct atom_context *ctx) 1356 { 1357 kfree(ctx->iio); 1358 kfree(ctx); 1359 } 1360 1361 bool atom_parse_data_header(struct atom_context *ctx, int index, 1362 uint16_t * size, uint8_t * frev, uint8_t * crev, 1363 uint16_t * data_start) 1364 { 1365 int offset = index * 2 + 4; 1366 int idx = CU16(ctx->data_table + offset); 1367 u16 *mdt = (u16 *)((char *)ctx->bios + ctx->data_table + 4); 1368 1369 if (!mdt[index]) 1370 return false; 1371 1372 if (size) 1373 *size = CU16(idx); 1374 if (frev) 1375 *frev = CU8(idx + 2); 1376 if (crev) 1377 *crev = CU8(idx + 3); 1378 *data_start = idx; 1379 return true; 1380 } 1381 1382 bool atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev, 1383 uint8_t * crev) 1384 { 1385 int offset = index * 2 + 4; 1386 int idx = CU16(ctx->cmd_table + offset); 1387 u16 *mct = (u16 *)((char *)ctx->bios + ctx->cmd_table + 4); 1388 1389 if (!mct[index]) 1390 return false; 1391 1392 if (frev) 1393 *frev = CU8(idx + 2); 1394 if (crev) 1395 *crev = CU8(idx + 3); 1396 return true; 1397 } 1398 1399 int atom_allocate_fb_scratch(struct atom_context *ctx) 1400 { 1401 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware); 1402 uint16_t data_offset; 1403 int usage_bytes = 0; 1404 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage; 1405 1406 if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) { 1407 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)((char *)ctx->bios + data_offset); 1408 1409 DRM_DEBUG("atom firmware requested %08x %dkb\n", 1410 le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware), 1411 le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb)); 1412 1413 usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024; 1414 } 1415 ctx->scratch_size_bytes = 0; 1416 if (usage_bytes == 0) 1417 usage_bytes = 20 * 1024; 1418 /* allocate some scratch memory */ 1419 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL); 1420 if (!ctx->scratch) 1421 return -ENOMEM; 1422 ctx->scratch_size_bytes = usage_bytes; 1423 return 0; 1424 } 1425