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 * $FreeBSD: head/sys/dev/drm2/radeon/atom.c 254894 2013-08-26 06:31:57Z dumbbell $ 25 */ 26 27 #define ATOM_DEBUG 28 29 #include "atom.h" 30 #include "atom-names.h" 31 #include "atom-bits.h" 32 #include "radeon.h" 33 #include <linux/delay.h> 34 35 #define ATOM_COND_ABOVE 0 36 #define ATOM_COND_ABOVEOREQUAL 1 37 #define ATOM_COND_ALWAYS 2 38 #define ATOM_COND_BELOW 3 39 #define ATOM_COND_BELOWOREQUAL 4 40 #define ATOM_COND_EQUAL 5 41 #define ATOM_COND_NOTEQUAL 6 42 43 #define ATOM_PORT_ATI 0 44 #define ATOM_PORT_PCI 1 45 #define ATOM_PORT_SYSIO 2 46 47 #define ATOM_UNIT_MICROSEC 0 48 #define ATOM_UNIT_MILLISEC 1 49 50 #define PLL_INDEX 2 51 #define PLL_DATA 3 52 53 typedef struct { 54 struct atom_context *ctx; 55 uint32_t *ps, *ws; 56 int ps_shift; 57 uint16_t start; 58 unsigned last_jump; 59 unsigned long last_jump_jiffies; 60 bool abort; 61 } atom_exec_context; 62 63 int atom_debug = 0; 64 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params); 65 66 static uint32_t atom_arg_mask[8] = 67 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000, 68 0xFF000000 }; 69 static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 }; 70 71 static int atom_dst_to_src[8][4] = { 72 /* translate destination alignment field to the source alignment encoding */ 73 {0, 0, 0, 0}, 74 {1, 2, 3, 0}, 75 {1, 2, 3, 0}, 76 {1, 2, 3, 0}, 77 {4, 5, 6, 7}, 78 {4, 5, 6, 7}, 79 {4, 5, 6, 7}, 80 {4, 5, 6, 7}, 81 }; 82 static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 }; 83 84 static int debug_depth = 0; 85 #ifdef ATOM_DEBUG 86 static void debug_print_spaces(int n) 87 { 88 while (n--) 89 kprintf(" "); 90 } 91 92 #define ATOM_DEBUG_PRINT(...) do if (atom_debug) { kprintf(__FILE__ __VA_ARGS__); } while (0) 93 #define ATOM_SDEBUG_PRINT(...) do if (atom_debug) { kprintf(__FILE__); debug_print_spaces(debug_depth); kprintf(__VA_ARGS__); } while (0) 94 #else 95 #define ATOM_DEBUG_PRINT(...) do { } while (0) 96 #define ATOM_SDEBUG_PRINT(...) do { } while (0) 97 #endif 98 99 static uint32_t atom_iio_execute(struct atom_context *ctx, int base, 100 uint32_t index, uint32_t data) 101 { 102 struct radeon_device *rdev = ctx->card->dev->dev_private; 103 uint32_t temp = 0xCDCDCDCD; 104 105 while (1) 106 switch (CU8(base)) { 107 case ATOM_IIO_NOP: 108 base++; 109 break; 110 case ATOM_IIO_READ: 111 temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1)); 112 base += 3; 113 break; 114 case ATOM_IIO_WRITE: 115 if (rdev->family == CHIP_RV515) 116 (void)ctx->card->ioreg_read(ctx->card, CU16(base + 1)); 117 ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp); 118 base += 3; 119 break; 120 case ATOM_IIO_CLEAR: 121 temp &= 122 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 123 CU8(base + 2)); 124 base += 3; 125 break; 126 case ATOM_IIO_SET: 127 temp |= 128 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base + 129 2); 130 base += 3; 131 break; 132 case ATOM_IIO_MOVE_INDEX: 133 temp &= 134 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 135 CU8(base + 3)); 136 temp |= 137 ((index >> CU8(base + 2)) & 138 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 139 3); 140 base += 4; 141 break; 142 case ATOM_IIO_MOVE_DATA: 143 temp &= 144 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 145 CU8(base + 3)); 146 temp |= 147 ((data >> CU8(base + 2)) & 148 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 149 3); 150 base += 4; 151 break; 152 case ATOM_IIO_MOVE_ATTR: 153 temp &= 154 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 155 CU8(base + 3)); 156 temp |= 157 ((ctx-> 158 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 - 159 CU8 160 (base 161 + 162 1)))) 163 << CU8(base + 3); 164 base += 4; 165 break; 166 case ATOM_IIO_END: 167 return temp; 168 default: 169 DRM_INFO("Unknown IIO opcode.\n"); 170 return 0; 171 } 172 } 173 174 static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr, 175 int *ptr, uint32_t *saved, int print) 176 { 177 uint32_t idx, val = 0xCDCDCDCD, align, arg; 178 struct atom_context *gctx = ctx->ctx; 179 arg = attr & 7; 180 align = (attr >> 3) & 7; 181 switch (arg) { 182 case ATOM_ARG_REG: 183 idx = U16(*ptr); 184 (*ptr) += 2; 185 if (print) 186 ATOM_DEBUG_PRINT("REG[0x%04X]", idx); 187 idx += gctx->reg_block; 188 switch (gctx->io_mode) { 189 case ATOM_IO_MM: 190 val = gctx->card->reg_read(gctx->card, idx); 191 break; 192 case ATOM_IO_PCI: 193 DRM_INFO( 194 "PCI registers are not implemented.\n"); 195 return 0; 196 case ATOM_IO_SYSIO: 197 DRM_INFO( 198 "SYSIO registers are not implemented.\n"); 199 return 0; 200 default: 201 if (!(gctx->io_mode & 0x80)) { 202 DRM_INFO("Bad IO mode.\n"); 203 return 0; 204 } 205 if (!gctx->iio[gctx->io_mode & 0x7F]) { 206 DRM_INFO( 207 "Undefined indirect IO read method %d.\n", 208 gctx->io_mode & 0x7F); 209 return 0; 210 } 211 val = 212 atom_iio_execute(gctx, 213 gctx->iio[gctx->io_mode & 0x7F], 214 idx, 0); 215 } 216 break; 217 case ATOM_ARG_PS: 218 idx = U8(*ptr); 219 (*ptr)++; 220 /* get_unaligned_le32 avoids unaligned accesses from atombios 221 * tables, noticed on a DEC Alpha. */ 222 val = get_unaligned_le32((u32 *)&ctx->ps[idx]); 223 if (print) 224 ATOM_DEBUG_PRINT("PS[0x%02X,0x%04X]", idx, val); 225 break; 226 case ATOM_ARG_WS: 227 idx = U8(*ptr); 228 (*ptr)++; 229 if (print) 230 ATOM_DEBUG_PRINT("WS[0x%02X]", idx); 231 switch (idx) { 232 case ATOM_WS_QUOTIENT: 233 val = gctx->divmul[0]; 234 break; 235 case ATOM_WS_REMAINDER: 236 val = gctx->divmul[1]; 237 break; 238 case ATOM_WS_DATAPTR: 239 val = gctx->data_block; 240 break; 241 case ATOM_WS_SHIFT: 242 val = gctx->shift; 243 break; 244 case ATOM_WS_OR_MASK: 245 val = 1 << gctx->shift; 246 break; 247 case ATOM_WS_AND_MASK: 248 val = ~(1 << gctx->shift); 249 break; 250 case ATOM_WS_FB_WINDOW: 251 val = gctx->fb_base; 252 break; 253 case ATOM_WS_ATTRIBUTES: 254 val = gctx->io_attr; 255 break; 256 case ATOM_WS_REGPTR: 257 val = gctx->reg_block; 258 break; 259 default: 260 val = ctx->ws[idx]; 261 } 262 break; 263 case ATOM_ARG_ID: 264 idx = U16(*ptr); 265 (*ptr) += 2; 266 if (print) { 267 if (gctx->data_block) 268 ATOM_DEBUG_PRINT("ID[0x%04X+%04X]", idx, gctx->data_block); 269 else 270 ATOM_DEBUG_PRINT("ID[0x%04X]", idx); 271 } 272 val = U32(idx + gctx->data_block); 273 break; 274 case ATOM_ARG_FB: 275 idx = U8(*ptr); 276 (*ptr)++; 277 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) { 278 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n", 279 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes); 280 val = 0; 281 } else 282 val = gctx->scratch[(gctx->fb_base / 4) + idx]; 283 if (print) 284 ATOM_DEBUG_PRINT("FB[0x%02X]", idx); 285 break; 286 case ATOM_ARG_IMM: 287 switch (align) { 288 case ATOM_SRC_DWORD: 289 val = U32(*ptr); 290 (*ptr) += 4; 291 if (print) 292 ATOM_DEBUG_PRINT("IMM 0x%08X\n", val); 293 return val; 294 case ATOM_SRC_WORD0: 295 case ATOM_SRC_WORD8: 296 case ATOM_SRC_WORD16: 297 val = U16(*ptr); 298 (*ptr) += 2; 299 if (print) 300 ATOM_DEBUG_PRINT("IMM 0x%04X\n", val); 301 return val; 302 case ATOM_SRC_BYTE0: 303 case ATOM_SRC_BYTE8: 304 case ATOM_SRC_BYTE16: 305 case ATOM_SRC_BYTE24: 306 val = U8(*ptr); 307 (*ptr)++; 308 if (print) 309 ATOM_DEBUG_PRINT("IMM 0x%02X\n", val); 310 return val; 311 } 312 return 0; 313 case ATOM_ARG_PLL: 314 idx = U8(*ptr); 315 (*ptr)++; 316 if (print) 317 ATOM_DEBUG_PRINT("PLL[0x%02X]", idx); 318 val = gctx->card->pll_read(gctx->card, idx); 319 break; 320 case ATOM_ARG_MC: 321 idx = U8(*ptr); 322 (*ptr)++; 323 if (print) 324 ATOM_DEBUG_PRINT("MC[0x%02X]", idx); 325 val = gctx->card->mc_read(gctx->card, idx); 326 break; 327 } 328 if (saved) 329 *saved = val; 330 val &= atom_arg_mask[align]; 331 val >>= atom_arg_shift[align]; 332 if (print) 333 switch (align) { 334 case ATOM_SRC_DWORD: 335 ATOM_DEBUG_PRINT(".[31:0] -> 0x%08X\n", val); 336 break; 337 case ATOM_SRC_WORD0: 338 ATOM_DEBUG_PRINT(".[15:0] -> 0x%04X\n", val); 339 break; 340 case ATOM_SRC_WORD8: 341 ATOM_DEBUG_PRINT(".[23:8] -> 0x%04X\n", val); 342 break; 343 case ATOM_SRC_WORD16: 344 ATOM_DEBUG_PRINT(".[31:16] -> 0x%04X\n", val); 345 break; 346 case ATOM_SRC_BYTE0: 347 ATOM_DEBUG_PRINT(".[7:0] -> 0x%02X\n", val); 348 break; 349 case ATOM_SRC_BYTE8: 350 ATOM_DEBUG_PRINT(".[15:8] -> 0x%02X\n", val); 351 break; 352 case ATOM_SRC_BYTE16: 353 ATOM_DEBUG_PRINT(".[23:16] -> 0x%02X\n", val); 354 break; 355 case ATOM_SRC_BYTE24: 356 ATOM_DEBUG_PRINT(".[31:24] -> 0x%02X\n", val); 357 break; 358 } 359 return val; 360 } 361 362 static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr) 363 { 364 uint32_t align = (attr >> 3) & 7, arg = attr & 7; 365 switch (arg) { 366 case ATOM_ARG_REG: 367 case ATOM_ARG_ID: 368 (*ptr) += 2; 369 break; 370 case ATOM_ARG_PLL: 371 case ATOM_ARG_MC: 372 case ATOM_ARG_PS: 373 case ATOM_ARG_WS: 374 case ATOM_ARG_FB: 375 (*ptr)++; 376 break; 377 case ATOM_ARG_IMM: 378 switch (align) { 379 case ATOM_SRC_DWORD: 380 (*ptr) += 4; 381 return; 382 case ATOM_SRC_WORD0: 383 case ATOM_SRC_WORD8: 384 case ATOM_SRC_WORD16: 385 (*ptr) += 2; 386 return; 387 case ATOM_SRC_BYTE0: 388 case ATOM_SRC_BYTE8: 389 case ATOM_SRC_BYTE16: 390 case ATOM_SRC_BYTE24: 391 (*ptr)++; 392 return; 393 } 394 return; 395 } 396 } 397 398 static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr) 399 { 400 return atom_get_src_int(ctx, attr, ptr, NULL, 1); 401 } 402 403 static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr) 404 { 405 uint32_t val = 0xCDCDCDCD; 406 407 switch (align) { 408 case ATOM_SRC_DWORD: 409 val = U32(*ptr); 410 (*ptr) += 4; 411 break; 412 case ATOM_SRC_WORD0: 413 case ATOM_SRC_WORD8: 414 case ATOM_SRC_WORD16: 415 val = U16(*ptr); 416 (*ptr) += 2; 417 break; 418 case ATOM_SRC_BYTE0: 419 case ATOM_SRC_BYTE8: 420 case ATOM_SRC_BYTE16: 421 case ATOM_SRC_BYTE24: 422 val = U8(*ptr); 423 (*ptr)++; 424 break; 425 } 426 return val; 427 } 428 429 static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr, 430 int *ptr, uint32_t *saved, int print) 431 { 432 return atom_get_src_int(ctx, 433 arg | atom_dst_to_src[(attr >> 3) & 434 7][(attr >> 6) & 3] << 3, 435 ptr, saved, print); 436 } 437 438 static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr) 439 { 440 atom_skip_src_int(ctx, 441 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 442 3] << 3, ptr); 443 } 444 445 static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr, 446 int *ptr, uint32_t val, uint32_t saved) 447 { 448 uint32_t align = 449 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val = 450 val, idx; 451 struct atom_context *gctx = ctx->ctx; 452 old_val &= atom_arg_mask[align] >> atom_arg_shift[align]; 453 val <<= atom_arg_shift[align]; 454 val &= atom_arg_mask[align]; 455 saved &= ~atom_arg_mask[align]; 456 val |= saved; 457 switch (arg) { 458 case ATOM_ARG_REG: 459 idx = U16(*ptr); 460 (*ptr) += 2; 461 ATOM_DEBUG_PRINT("REG[0x%04X]", idx); 462 idx += gctx->reg_block; 463 switch (gctx->io_mode) { 464 case ATOM_IO_MM: 465 if (idx == 0) 466 gctx->card->reg_write(gctx->card, idx, 467 val << 2); 468 else 469 gctx->card->reg_write(gctx->card, idx, val); 470 break; 471 case ATOM_IO_PCI: 472 DRM_INFO( 473 "PCI registers are not implemented.\n"); 474 return; 475 case ATOM_IO_SYSIO: 476 DRM_INFO( 477 "SYSIO registers are not implemented.\n"); 478 return; 479 default: 480 if (!(gctx->io_mode & 0x80)) { 481 DRM_INFO("Bad IO mode.\n"); 482 return; 483 } 484 if (!gctx->iio[gctx->io_mode & 0xFF]) { 485 DRM_INFO( 486 "Undefined indirect IO write method %d.\n", 487 gctx->io_mode & 0x7F); 488 return; 489 } 490 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF], 491 idx, val); 492 } 493 break; 494 case ATOM_ARG_PS: 495 idx = U8(*ptr); 496 (*ptr)++; 497 ATOM_DEBUG_PRINT("PS[0x%02X]", idx); 498 ctx->ps[idx] = cpu_to_le32(val); 499 break; 500 case ATOM_ARG_WS: 501 idx = U8(*ptr); 502 (*ptr)++; 503 ATOM_DEBUG_PRINT("WS[0x%02X]", idx); 504 switch (idx) { 505 case ATOM_WS_QUOTIENT: 506 gctx->divmul[0] = val; 507 break; 508 case ATOM_WS_REMAINDER: 509 gctx->divmul[1] = val; 510 break; 511 case ATOM_WS_DATAPTR: 512 gctx->data_block = val; 513 break; 514 case ATOM_WS_SHIFT: 515 gctx->shift = val; 516 break; 517 case ATOM_WS_OR_MASK: 518 case ATOM_WS_AND_MASK: 519 break; 520 case ATOM_WS_FB_WINDOW: 521 gctx->fb_base = val; 522 break; 523 case ATOM_WS_ATTRIBUTES: 524 gctx->io_attr = val; 525 break; 526 case ATOM_WS_REGPTR: 527 gctx->reg_block = val; 528 break; 529 default: 530 ctx->ws[idx] = val; 531 } 532 break; 533 case ATOM_ARG_FB: 534 idx = U8(*ptr); 535 (*ptr)++; 536 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) { 537 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n", 538 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes); 539 } else 540 gctx->scratch[(gctx->fb_base / 4) + idx] = val; 541 ATOM_DEBUG_PRINT("FB[0x%02X]", idx); 542 break; 543 case ATOM_ARG_PLL: 544 idx = U8(*ptr); 545 (*ptr)++; 546 ATOM_DEBUG_PRINT("PLL[0x%02X]", idx); 547 gctx->card->pll_write(gctx->card, idx, val); 548 break; 549 case ATOM_ARG_MC: 550 idx = U8(*ptr); 551 (*ptr)++; 552 ATOM_DEBUG_PRINT("MC[0x%02X]", idx); 553 gctx->card->mc_write(gctx->card, idx, val); 554 return; 555 } 556 switch (align) { 557 case ATOM_SRC_DWORD: 558 ATOM_DEBUG_PRINT(".[31:0] <- 0x%08X\n", old_val); 559 break; 560 case ATOM_SRC_WORD0: 561 ATOM_DEBUG_PRINT(".[15:0] <- 0x%04X\n", old_val); 562 break; 563 case ATOM_SRC_WORD8: 564 ATOM_DEBUG_PRINT(".[23:8] <- 0x%04X\n", old_val); 565 break; 566 case ATOM_SRC_WORD16: 567 ATOM_DEBUG_PRINT(".[31:16] <- 0x%04X\n", old_val); 568 break; 569 case ATOM_SRC_BYTE0: 570 ATOM_DEBUG_PRINT(".[7:0] <- 0x%02X\n", old_val); 571 break; 572 case ATOM_SRC_BYTE8: 573 ATOM_DEBUG_PRINT(".[15:8] <- 0x%02X\n", old_val); 574 break; 575 case ATOM_SRC_BYTE16: 576 ATOM_DEBUG_PRINT(".[23:16] <- 0x%02X\n", old_val); 577 break; 578 case ATOM_SRC_BYTE24: 579 ATOM_DEBUG_PRINT(".[31:24] <- 0x%02X\n", old_val); 580 break; 581 } 582 } 583 584 static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg) 585 { 586 uint8_t attr = U8((*ptr)++); 587 uint32_t dst, src, saved; 588 int dptr = *ptr; 589 ATOM_SDEBUG_PRINT(" dst: "); 590 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 591 ATOM_SDEBUG_PRINT(" src: "); 592 src = atom_get_src(ctx, attr, ptr); 593 dst += src; 594 ATOM_SDEBUG_PRINT(" dst: "); 595 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 596 } 597 598 static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg) 599 { 600 uint8_t attr = U8((*ptr)++); 601 uint32_t dst, src, saved; 602 int dptr = *ptr; 603 ATOM_SDEBUG_PRINT(" dst: "); 604 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 605 ATOM_SDEBUG_PRINT(" src: "); 606 src = atom_get_src(ctx, attr, ptr); 607 dst &= src; 608 ATOM_SDEBUG_PRINT(" dst: "); 609 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 610 } 611 612 static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg) 613 { 614 DRM_INFO("ATOM BIOS beeped!\n"); 615 } 616 617 static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg) 618 { 619 int idx = U8((*ptr)++); 620 int r = 0; 621 622 if (idx < ATOM_TABLE_NAMES_CNT) 623 ATOM_SDEBUG_PRINT(" table: %d (%s)\n", idx, atom_table_names[idx]); 624 else 625 ATOM_SDEBUG_PRINT(" table: %d\n", idx); 626 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx)) 627 r = atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift); 628 if (r) { 629 ctx->abort = true; 630 } 631 } 632 633 static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg) 634 { 635 uint8_t attr = U8((*ptr)++); 636 uint32_t saved; 637 int dptr = *ptr; 638 attr &= 0x38; 639 attr |= atom_def_dst[attr >> 3] << 6; 640 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 641 ATOM_SDEBUG_PRINT(" dst: "); 642 atom_put_dst(ctx, arg, attr, &dptr, 0, saved); 643 } 644 645 static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg) 646 { 647 uint8_t attr = U8((*ptr)++); 648 uint32_t dst, src; 649 ATOM_SDEBUG_PRINT(" src1: "); 650 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 651 ATOM_SDEBUG_PRINT(" src2: "); 652 src = atom_get_src(ctx, attr, ptr); 653 ctx->ctx->cs_equal = (dst == src); 654 ctx->ctx->cs_above = (dst > src); 655 ATOM_SDEBUG_PRINT(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE", 656 ctx->ctx->cs_above ? "GT" : "LE"); 657 } 658 659 static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg) 660 { 661 unsigned count = U8((*ptr)++); 662 ATOM_SDEBUG_PRINT(" count: %d\n", count); 663 if (arg == ATOM_UNIT_MICROSEC) 664 udelay(count); 665 else if (!drm_can_sleep()) 666 mdelay(count); 667 else 668 msleep(count); 669 } 670 671 static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg) 672 { 673 uint8_t attr = U8((*ptr)++); 674 uint32_t dst, src; 675 ATOM_SDEBUG_PRINT(" src1: "); 676 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 677 ATOM_SDEBUG_PRINT(" src2: "); 678 src = atom_get_src(ctx, attr, ptr); 679 if (src != 0) { 680 ctx->ctx->divmul[0] = dst / src; 681 ctx->ctx->divmul[1] = dst % src; 682 } else { 683 ctx->ctx->divmul[0] = 0; 684 ctx->ctx->divmul[1] = 0; 685 } 686 } 687 688 static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg) 689 { 690 /* functionally, a nop */ 691 } 692 693 static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg) 694 { 695 int execute = 0, target = U16(*ptr); 696 unsigned long cjiffies; 697 698 (*ptr) += 2; 699 switch (arg) { 700 case ATOM_COND_ABOVE: 701 execute = ctx->ctx->cs_above; 702 break; 703 case ATOM_COND_ABOVEOREQUAL: 704 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal; 705 break; 706 case ATOM_COND_ALWAYS: 707 execute = 1; 708 break; 709 case ATOM_COND_BELOW: 710 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal); 711 break; 712 case ATOM_COND_BELOWOREQUAL: 713 execute = !ctx->ctx->cs_above; 714 break; 715 case ATOM_COND_EQUAL: 716 execute = ctx->ctx->cs_equal; 717 break; 718 case ATOM_COND_NOTEQUAL: 719 execute = !ctx->ctx->cs_equal; 720 break; 721 } 722 if (arg != ATOM_COND_ALWAYS) 723 ATOM_SDEBUG_PRINT(" taken: %s\n", execute ? "yes" : "no"); 724 ATOM_SDEBUG_PRINT(" target: 0x%04X\n", target); 725 if (execute) { 726 if (ctx->last_jump == (ctx->start + target)) { 727 cjiffies = jiffies; 728 if (time_after(cjiffies, ctx->last_jump_jiffies)) { 729 cjiffies -= ctx->last_jump_jiffies; 730 if ((jiffies_to_msecs(cjiffies) > 5000)) { 731 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n"); 732 ctx->abort = true; 733 } 734 } else { 735 /* jiffies wrap around we will just wait a little longer */ 736 ctx->last_jump_jiffies = jiffies; 737 } 738 } else { 739 ctx->last_jump = ctx->start + target; 740 ctx->last_jump_jiffies = jiffies; 741 } 742 *ptr = ctx->start + target; 743 } 744 } 745 746 static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg) 747 { 748 uint8_t attr = U8((*ptr)++); 749 uint32_t dst, mask, src, saved; 750 int dptr = *ptr; 751 ATOM_SDEBUG_PRINT(" dst: "); 752 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 753 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr); 754 ATOM_SDEBUG_PRINT(" mask: 0x%08x", mask); 755 ATOM_SDEBUG_PRINT(" src: "); 756 src = atom_get_src(ctx, attr, ptr); 757 dst &= mask; 758 dst |= src; 759 ATOM_SDEBUG_PRINT(" dst: "); 760 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 761 } 762 763 static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg) 764 { 765 uint8_t attr = U8((*ptr)++); 766 uint32_t src, saved; 767 int dptr = *ptr; 768 if (((attr >> 3) & 7) != ATOM_SRC_DWORD) 769 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 770 else { 771 atom_skip_dst(ctx, arg, attr, ptr); 772 saved = 0xCDCDCDCD; 773 } 774 ATOM_SDEBUG_PRINT(" src: "); 775 src = atom_get_src(ctx, attr, ptr); 776 ATOM_SDEBUG_PRINT(" dst: "); 777 atom_put_dst(ctx, arg, attr, &dptr, src, saved); 778 } 779 780 static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg) 781 { 782 uint8_t attr = U8((*ptr)++); 783 uint32_t dst, src; 784 ATOM_SDEBUG_PRINT(" src1: "); 785 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 786 ATOM_SDEBUG_PRINT(" src2: "); 787 src = atom_get_src(ctx, attr, ptr); 788 ctx->ctx->divmul[0] = dst * src; 789 } 790 791 static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg) 792 { 793 /* nothing */ 794 } 795 796 static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg) 797 { 798 uint8_t attr = U8((*ptr)++); 799 uint32_t dst, src, saved; 800 int dptr = *ptr; 801 ATOM_SDEBUG_PRINT(" dst: "); 802 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 803 ATOM_SDEBUG_PRINT(" src: "); 804 src = atom_get_src(ctx, attr, ptr); 805 dst |= src; 806 ATOM_SDEBUG_PRINT(" dst: "); 807 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 808 } 809 810 static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg) 811 { 812 uint8_t val = U8((*ptr)++); 813 ATOM_SDEBUG_PRINT("POST card output: 0x%02X\n", val); 814 } 815 816 static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg) 817 { 818 DRM_INFO("unimplemented!\n"); 819 } 820 821 static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg) 822 { 823 DRM_INFO("unimplemented!\n"); 824 } 825 826 static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg) 827 { 828 DRM_INFO("unimplemented!\n"); 829 } 830 831 static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg) 832 { 833 int idx = U8(*ptr); 834 (*ptr)++; 835 ATOM_SDEBUG_PRINT(" block: %d\n", idx); 836 if (!idx) 837 ctx->ctx->data_block = 0; 838 else if (idx == 255) 839 ctx->ctx->data_block = ctx->start; 840 else 841 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx); 842 ATOM_SDEBUG_PRINT(" base: 0x%04X\n", ctx->ctx->data_block); 843 } 844 845 static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg) 846 { 847 uint8_t attr = U8((*ptr)++); 848 ATOM_SDEBUG_PRINT(" fb_base: "); 849 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr); 850 } 851 852 static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg) 853 { 854 int port; 855 switch (arg) { 856 case ATOM_PORT_ATI: 857 port = U16(*ptr); 858 if (port < ATOM_IO_NAMES_CNT) 859 ATOM_SDEBUG_PRINT(" port: %d (%s)\n", port, atom_io_names[port]); 860 else 861 ATOM_SDEBUG_PRINT(" port: %d\n", port); 862 if (!port) 863 ctx->ctx->io_mode = ATOM_IO_MM; 864 else 865 ctx->ctx->io_mode = ATOM_IO_IIO | port; 866 (*ptr) += 2; 867 break; 868 case ATOM_PORT_PCI: 869 ctx->ctx->io_mode = ATOM_IO_PCI; 870 (*ptr)++; 871 break; 872 case ATOM_PORT_SYSIO: 873 ctx->ctx->io_mode = ATOM_IO_SYSIO; 874 (*ptr)++; 875 break; 876 } 877 } 878 879 static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg) 880 { 881 ctx->ctx->reg_block = U16(*ptr); 882 (*ptr) += 2; 883 ATOM_SDEBUG_PRINT(" base: 0x%04X\n", ctx->ctx->reg_block); 884 } 885 886 static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg) 887 { 888 uint8_t attr = U8((*ptr)++), shift; 889 uint32_t saved, dst; 890 int dptr = *ptr; 891 attr &= 0x38; 892 attr |= atom_def_dst[attr >> 3] << 6; 893 ATOM_SDEBUG_PRINT(" dst: "); 894 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 895 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr); 896 ATOM_SDEBUG_PRINT(" shift: %d\n", shift); 897 dst <<= shift; 898 ATOM_SDEBUG_PRINT(" dst: "); 899 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 900 } 901 902 static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg) 903 { 904 uint8_t attr = U8((*ptr)++), shift; 905 uint32_t saved, dst; 906 int dptr = *ptr; 907 attr &= 0x38; 908 attr |= atom_def_dst[attr >> 3] << 6; 909 ATOM_SDEBUG_PRINT(" dst: "); 910 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 911 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr); 912 ATOM_SDEBUG_PRINT(" shift: %d\n", shift); 913 dst >>= shift; 914 ATOM_SDEBUG_PRINT(" dst: "); 915 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 916 } 917 918 static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg) 919 { 920 uint8_t attr = U8((*ptr)++), shift; 921 uint32_t saved, dst; 922 int dptr = *ptr; 923 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3]; 924 ATOM_SDEBUG_PRINT(" dst: "); 925 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 926 /* op needs to full dst value */ 927 dst = saved; 928 shift = atom_get_src(ctx, attr, ptr); 929 ATOM_SDEBUG_PRINT(" shift: %d\n", shift); 930 dst <<= shift; 931 dst &= atom_arg_mask[dst_align]; 932 dst >>= atom_arg_shift[dst_align]; 933 ATOM_SDEBUG_PRINT(" dst: "); 934 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 935 } 936 937 static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg) 938 { 939 uint8_t attr = U8((*ptr)++), shift; 940 uint32_t saved, dst; 941 int dptr = *ptr; 942 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3]; 943 ATOM_SDEBUG_PRINT(" dst: "); 944 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 945 /* op needs to full dst value */ 946 dst = saved; 947 shift = atom_get_src(ctx, attr, ptr); 948 ATOM_SDEBUG_PRINT(" shift: %d\n", shift); 949 dst >>= shift; 950 dst &= atom_arg_mask[dst_align]; 951 dst >>= atom_arg_shift[dst_align]; 952 ATOM_SDEBUG_PRINT(" dst: "); 953 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 954 } 955 956 static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg) 957 { 958 uint8_t attr = U8((*ptr)++); 959 uint32_t dst, src, saved; 960 int dptr = *ptr; 961 ATOM_SDEBUG_PRINT(" dst: "); 962 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 963 ATOM_SDEBUG_PRINT(" src: "); 964 src = atom_get_src(ctx, attr, ptr); 965 dst -= src; 966 ATOM_SDEBUG_PRINT(" dst: "); 967 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 968 } 969 970 static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg) 971 { 972 uint8_t attr = U8((*ptr)++); 973 uint32_t src, val, target; 974 ATOM_SDEBUG_PRINT(" switch: "); 975 src = atom_get_src(ctx, attr, ptr); 976 while (U16(*ptr) != ATOM_CASE_END) 977 if (U8(*ptr) == ATOM_CASE_MAGIC) { 978 (*ptr)++; 979 ATOM_SDEBUG_PRINT(" case: "); 980 val = 981 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM, 982 ptr); 983 target = U16(*ptr); 984 if (val == src) { 985 ATOM_SDEBUG_PRINT(" target: %04X\n", target); 986 *ptr = ctx->start + target; 987 return; 988 } 989 (*ptr) += 2; 990 } else { 991 DRM_INFO("Bad case.\n"); 992 return; 993 } 994 (*ptr) += 2; 995 } 996 997 static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg) 998 { 999 uint8_t attr = U8((*ptr)++); 1000 uint32_t dst, src; 1001 ATOM_SDEBUG_PRINT(" src1: "); 1002 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 1003 ATOM_SDEBUG_PRINT(" src2: "); 1004 src = atom_get_src(ctx, attr, ptr); 1005 ctx->ctx->cs_equal = ((dst & src) == 0); 1006 ATOM_SDEBUG_PRINT(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE"); 1007 } 1008 1009 static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg) 1010 { 1011 uint8_t attr = U8((*ptr)++); 1012 uint32_t dst, src, saved; 1013 int dptr = *ptr; 1014 ATOM_SDEBUG_PRINT(" dst: "); 1015 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 1016 ATOM_SDEBUG_PRINT(" src: "); 1017 src = atom_get_src(ctx, attr, ptr); 1018 dst ^= src; 1019 ATOM_SDEBUG_PRINT(" dst: "); 1020 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 1021 } 1022 1023 static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg) 1024 { 1025 DRM_INFO("unimplemented!\n"); 1026 } 1027 1028 static struct { 1029 void (*func) (atom_exec_context *, int *, int); 1030 int arg; 1031 } opcode_table[ATOM_OP_CNT] = { 1032 { 1033 NULL, 0}, { 1034 atom_op_move, ATOM_ARG_REG}, { 1035 atom_op_move, ATOM_ARG_PS}, { 1036 atom_op_move, ATOM_ARG_WS}, { 1037 atom_op_move, ATOM_ARG_FB}, { 1038 atom_op_move, ATOM_ARG_PLL}, { 1039 atom_op_move, ATOM_ARG_MC}, { 1040 atom_op_and, ATOM_ARG_REG}, { 1041 atom_op_and, ATOM_ARG_PS}, { 1042 atom_op_and, ATOM_ARG_WS}, { 1043 atom_op_and, ATOM_ARG_FB}, { 1044 atom_op_and, ATOM_ARG_PLL}, { 1045 atom_op_and, ATOM_ARG_MC}, { 1046 atom_op_or, ATOM_ARG_REG}, { 1047 atom_op_or, ATOM_ARG_PS}, { 1048 atom_op_or, ATOM_ARG_WS}, { 1049 atom_op_or, ATOM_ARG_FB}, { 1050 atom_op_or, ATOM_ARG_PLL}, { 1051 atom_op_or, ATOM_ARG_MC}, { 1052 atom_op_shift_left, ATOM_ARG_REG}, { 1053 atom_op_shift_left, ATOM_ARG_PS}, { 1054 atom_op_shift_left, ATOM_ARG_WS}, { 1055 atom_op_shift_left, ATOM_ARG_FB}, { 1056 atom_op_shift_left, ATOM_ARG_PLL}, { 1057 atom_op_shift_left, ATOM_ARG_MC}, { 1058 atom_op_shift_right, ATOM_ARG_REG}, { 1059 atom_op_shift_right, ATOM_ARG_PS}, { 1060 atom_op_shift_right, ATOM_ARG_WS}, { 1061 atom_op_shift_right, ATOM_ARG_FB}, { 1062 atom_op_shift_right, ATOM_ARG_PLL}, { 1063 atom_op_shift_right, ATOM_ARG_MC}, { 1064 atom_op_mul, ATOM_ARG_REG}, { 1065 atom_op_mul, ATOM_ARG_PS}, { 1066 atom_op_mul, ATOM_ARG_WS}, { 1067 atom_op_mul, ATOM_ARG_FB}, { 1068 atom_op_mul, ATOM_ARG_PLL}, { 1069 atom_op_mul, ATOM_ARG_MC}, { 1070 atom_op_div, ATOM_ARG_REG}, { 1071 atom_op_div, ATOM_ARG_PS}, { 1072 atom_op_div, ATOM_ARG_WS}, { 1073 atom_op_div, ATOM_ARG_FB}, { 1074 atom_op_div, ATOM_ARG_PLL}, { 1075 atom_op_div, ATOM_ARG_MC}, { 1076 atom_op_add, ATOM_ARG_REG}, { 1077 atom_op_add, ATOM_ARG_PS}, { 1078 atom_op_add, ATOM_ARG_WS}, { 1079 atom_op_add, ATOM_ARG_FB}, { 1080 atom_op_add, ATOM_ARG_PLL}, { 1081 atom_op_add, ATOM_ARG_MC}, { 1082 atom_op_sub, ATOM_ARG_REG}, { 1083 atom_op_sub, ATOM_ARG_PS}, { 1084 atom_op_sub, ATOM_ARG_WS}, { 1085 atom_op_sub, ATOM_ARG_FB}, { 1086 atom_op_sub, ATOM_ARG_PLL}, { 1087 atom_op_sub, ATOM_ARG_MC}, { 1088 atom_op_setport, ATOM_PORT_ATI}, { 1089 atom_op_setport, ATOM_PORT_PCI}, { 1090 atom_op_setport, ATOM_PORT_SYSIO}, { 1091 atom_op_setregblock, 0}, { 1092 atom_op_setfbbase, 0}, { 1093 atom_op_compare, ATOM_ARG_REG}, { 1094 atom_op_compare, ATOM_ARG_PS}, { 1095 atom_op_compare, ATOM_ARG_WS}, { 1096 atom_op_compare, ATOM_ARG_FB}, { 1097 atom_op_compare, ATOM_ARG_PLL}, { 1098 atom_op_compare, ATOM_ARG_MC}, { 1099 atom_op_switch, 0}, { 1100 atom_op_jump, ATOM_COND_ALWAYS}, { 1101 atom_op_jump, ATOM_COND_EQUAL}, { 1102 atom_op_jump, ATOM_COND_BELOW}, { 1103 atom_op_jump, ATOM_COND_ABOVE}, { 1104 atom_op_jump, ATOM_COND_BELOWOREQUAL}, { 1105 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, { 1106 atom_op_jump, ATOM_COND_NOTEQUAL}, { 1107 atom_op_test, ATOM_ARG_REG}, { 1108 atom_op_test, ATOM_ARG_PS}, { 1109 atom_op_test, ATOM_ARG_WS}, { 1110 atom_op_test, ATOM_ARG_FB}, { 1111 atom_op_test, ATOM_ARG_PLL}, { 1112 atom_op_test, ATOM_ARG_MC}, { 1113 atom_op_delay, ATOM_UNIT_MILLISEC}, { 1114 atom_op_delay, ATOM_UNIT_MICROSEC}, { 1115 atom_op_calltable, 0}, { 1116 atom_op_repeat, 0}, { 1117 atom_op_clear, ATOM_ARG_REG}, { 1118 atom_op_clear, ATOM_ARG_PS}, { 1119 atom_op_clear, ATOM_ARG_WS}, { 1120 atom_op_clear, ATOM_ARG_FB}, { 1121 atom_op_clear, ATOM_ARG_PLL}, { 1122 atom_op_clear, ATOM_ARG_MC}, { 1123 atom_op_nop, 0}, { 1124 atom_op_eot, 0}, { 1125 atom_op_mask, ATOM_ARG_REG}, { 1126 atom_op_mask, ATOM_ARG_PS}, { 1127 atom_op_mask, ATOM_ARG_WS}, { 1128 atom_op_mask, ATOM_ARG_FB}, { 1129 atom_op_mask, ATOM_ARG_PLL}, { 1130 atom_op_mask, ATOM_ARG_MC}, { 1131 atom_op_postcard, 0}, { 1132 atom_op_beep, 0}, { 1133 atom_op_savereg, 0}, { 1134 atom_op_restorereg, 0}, { 1135 atom_op_setdatablock, 0}, { 1136 atom_op_xor, ATOM_ARG_REG}, { 1137 atom_op_xor, ATOM_ARG_PS}, { 1138 atom_op_xor, ATOM_ARG_WS}, { 1139 atom_op_xor, ATOM_ARG_FB}, { 1140 atom_op_xor, ATOM_ARG_PLL}, { 1141 atom_op_xor, ATOM_ARG_MC}, { 1142 atom_op_shl, ATOM_ARG_REG}, { 1143 atom_op_shl, ATOM_ARG_PS}, { 1144 atom_op_shl, ATOM_ARG_WS}, { 1145 atom_op_shl, ATOM_ARG_FB}, { 1146 atom_op_shl, ATOM_ARG_PLL}, { 1147 atom_op_shl, ATOM_ARG_MC}, { 1148 atom_op_shr, ATOM_ARG_REG}, { 1149 atom_op_shr, ATOM_ARG_PS}, { 1150 atom_op_shr, ATOM_ARG_WS}, { 1151 atom_op_shr, ATOM_ARG_FB}, { 1152 atom_op_shr, ATOM_ARG_PLL}, { 1153 atom_op_shr, ATOM_ARG_MC}, { 1154 atom_op_debug, 0},}; 1155 1156 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params) 1157 { 1158 int base = CU16(ctx->cmd_table + 4 + 2 * index); 1159 int len, ws, ps, ptr; 1160 unsigned char op; 1161 atom_exec_context ectx; 1162 int ret = 0; 1163 1164 if (!base) 1165 return -EINVAL; 1166 1167 len = CU16(base + ATOM_CT_SIZE_PTR); 1168 ws = CU8(base + ATOM_CT_WS_PTR); 1169 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK; 1170 ptr = base + ATOM_CT_CODE_PTR; 1171 1172 ATOM_SDEBUG_PRINT(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps); 1173 1174 ectx.ctx = ctx; 1175 ectx.ps_shift = ps / 4; 1176 ectx.start = base; 1177 ectx.ps = params; 1178 ectx.abort = false; 1179 ectx.last_jump = 0; 1180 if (ws) 1181 ectx.ws = kzalloc(4 * ws, GFP_KERNEL); 1182 else 1183 ectx.ws = NULL; 1184 1185 debug_depth++; 1186 while (1) { 1187 op = CU8(ptr++); 1188 if (op < ATOM_OP_NAMES_CNT) 1189 ATOM_SDEBUG_PRINT("%s @ 0x%04X\n", atom_op_names[op], ptr - 1); 1190 else 1191 ATOM_SDEBUG_PRINT("[%d] @ 0x%04X\n", op, ptr - 1); 1192 if (ectx.abort) { 1193 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n", 1194 base, len, ws, ps, ptr - 1); 1195 ret = -EINVAL; 1196 goto free; 1197 } 1198 1199 if (op < ATOM_OP_CNT && op > 0) 1200 opcode_table[op].func(&ectx, &ptr, 1201 opcode_table[op].arg); 1202 else 1203 break; 1204 1205 if (op == ATOM_OP_EOT) 1206 break; 1207 } 1208 debug_depth--; 1209 ATOM_SDEBUG_PRINT("<<\n"); 1210 1211 free: 1212 if (ws) 1213 kfree(ectx.ws); 1214 return ret; 1215 } 1216 1217 int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params) 1218 { 1219 int r; 1220 1221 lockmgr(&ctx->mutex, LK_EXCLUSIVE); 1222 /* reset data block */ 1223 ctx->data_block = 0; 1224 /* reset reg block */ 1225 ctx->reg_block = 0; 1226 /* reset fb window */ 1227 ctx->fb_base = 0; 1228 /* reset io mode */ 1229 ctx->io_mode = ATOM_IO_MM; 1230 /* reset divmul */ 1231 ctx->divmul[0] = 0; 1232 ctx->divmul[1] = 0; 1233 r = atom_execute_table_locked(ctx, index, params); 1234 lockmgr(&ctx->mutex, LK_RELEASE); 1235 return r; 1236 } 1237 1238 static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 }; 1239 1240 static void atom_index_iio(struct atom_context *ctx, int base) 1241 { 1242 ctx->iio = kzalloc(2 * 256, GFP_KERNEL); 1243 if (!ctx->iio) 1244 return; 1245 while (CU8(base) == ATOM_IIO_START) { 1246 ctx->iio[CU8(base + 1)] = base + 2; 1247 base += 2; 1248 while (CU8(base) != ATOM_IIO_END) 1249 base += atom_iio_len[CU8(base)]; 1250 base += 3; 1251 } 1252 } 1253 1254 struct atom_context *atom_parse(struct card_info *card, void *bios) 1255 { 1256 int base; 1257 struct atom_context *ctx = 1258 kzalloc(sizeof(struct atom_context), GFP_KERNEL); 1259 char *str; 1260 char name[512]; 1261 int i; 1262 1263 if (!ctx) 1264 return NULL; 1265 1266 ctx->card = card; 1267 ctx->bios = bios; 1268 1269 if (CU16(0) != ATOM_BIOS_MAGIC) { 1270 DRM_INFO("Invalid BIOS magic.\n"); 1271 kfree(ctx); 1272 return NULL; 1273 } 1274 if (strncmp 1275 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC, 1276 strlen(ATOM_ATI_MAGIC))) { 1277 DRM_INFO("Invalid ATI magic.\n"); 1278 kfree(ctx); 1279 return NULL; 1280 } 1281 1282 base = CU16(ATOM_ROM_TABLE_PTR); 1283 if (strncmp 1284 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC, 1285 strlen(ATOM_ROM_MAGIC))) { 1286 DRM_INFO("Invalid ATOM magic.\n"); 1287 kfree(ctx); 1288 return NULL; 1289 } 1290 1291 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR); 1292 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR); 1293 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4); 1294 if (!ctx->iio) { 1295 atom_destroy(ctx); 1296 return NULL; 1297 } 1298 1299 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR)); 1300 while (*str && ((*str == '\n') || (*str == '\r'))) 1301 str++; 1302 /* name string isn't always 0 terminated */ 1303 for (i = 0; i < 511; i++) { 1304 name[i] = str[i]; 1305 if (name[i] < '.' || name[i] > 'z') { 1306 name[i] = 0; 1307 break; 1308 } 1309 } 1310 DRM_INFO("ATOM BIOS: %s\n", name); 1311 1312 return ctx; 1313 } 1314 1315 int atom_asic_init(struct atom_context *ctx) 1316 { 1317 struct radeon_device *rdev = ctx->card->dev->dev_private; 1318 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR); 1319 uint32_t ps[16]; 1320 int ret; 1321 1322 memset(ps, 0, 64); 1323 1324 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR)); 1325 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR)); 1326 if (!ps[0] || !ps[1]) 1327 return 1; 1328 1329 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT)) 1330 return 1; 1331 ret = atom_execute_table(ctx, ATOM_CMD_INIT, ps); 1332 if (ret) 1333 return ret; 1334 1335 memset(ps, 0, 64); 1336 1337 if (rdev->family < CHIP_R600) { 1338 if (CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_SPDFANCNTL)) 1339 atom_execute_table(ctx, ATOM_CMD_SPDFANCNTL, ps); 1340 } 1341 return ret; 1342 } 1343 1344 void atom_destroy(struct atom_context *ctx) 1345 { 1346 kfree(ctx->iio); 1347 kfree(ctx); 1348 } 1349 1350 bool atom_parse_data_header(struct atom_context *ctx, int index, 1351 uint16_t * size, uint8_t * frev, uint8_t * crev, 1352 uint16_t * data_start) 1353 { 1354 int offset = index * 2 + 4; 1355 int idx = CU16(ctx->data_table + offset); 1356 u16 *mdt = (u16 *)((char *)ctx->bios + ctx->data_table + 4); 1357 1358 if (!mdt[index]) 1359 return false; 1360 1361 if (size) 1362 *size = CU16(idx); 1363 if (frev) 1364 *frev = CU8(idx + 2); 1365 if (crev) 1366 *crev = CU8(idx + 3); 1367 *data_start = idx; 1368 return true; 1369 } 1370 1371 bool atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev, 1372 uint8_t * crev) 1373 { 1374 int offset = index * 2 + 4; 1375 int idx = CU16(ctx->cmd_table + offset); 1376 u16 *mct = (u16 *)((char *)ctx->bios + ctx->cmd_table + 4); 1377 1378 if (!mct[index]) 1379 return false; 1380 1381 if (frev) 1382 *frev = CU8(idx + 2); 1383 if (crev) 1384 *crev = CU8(idx + 3); 1385 return true; 1386 } 1387 1388 int atom_allocate_fb_scratch(struct atom_context *ctx) 1389 { 1390 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware); 1391 uint16_t data_offset; 1392 int usage_bytes = 0; 1393 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage; 1394 1395 if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) { 1396 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)((char *)ctx->bios + data_offset); 1397 1398 DRM_DEBUG("atom firmware requested %08x %dkb\n", 1399 le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware), 1400 le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb)); 1401 1402 usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024; 1403 } 1404 ctx->scratch_size_bytes = 0; 1405 if (usage_bytes == 0) 1406 usage_bytes = 20 * 1024; 1407 /* allocate some scratch memory */ 1408 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL); 1409 if (!ctx->scratch) 1410 return -ENOMEM; 1411 ctx->scratch_size_bytes = usage_bytes; 1412 return 0; 1413 } 1414