atom.c revision 771fe6b912fca54f03e8a72eb63058b582775362
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 28#define ATOM_DEBUG 29 30#include "atom.h" 31#include "atom-names.h" 32#include "atom-bits.h" 33 34#define ATOM_COND_ABOVE 0 35#define ATOM_COND_ABOVEOREQUAL 1 36#define ATOM_COND_ALWAYS 2 37#define ATOM_COND_BELOW 3 38#define ATOM_COND_BELOWOREQUAL 4 39#define ATOM_COND_EQUAL 5 40#define ATOM_COND_NOTEQUAL 6 41 42#define ATOM_PORT_ATI 0 43#define ATOM_PORT_PCI 1 44#define ATOM_PORT_SYSIO 2 45 46#define ATOM_UNIT_MICROSEC 0 47#define ATOM_UNIT_MILLISEC 1 48 49#define PLL_INDEX 2 50#define PLL_DATA 3 51 52typedef struct { 53 struct atom_context *ctx; 54 55 uint32_t *ps, *ws; 56 int ps_shift; 57 uint16_t start; 58} atom_exec_context; 59 60int atom_debug = 0; 61void atom_execute_table(struct atom_context *ctx, int index, uint32_t * params); 62 63static uint32_t atom_arg_mask[8] = 64 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000, 650xFF000000 }; 66static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 }; 67 68static int atom_dst_to_src[8][4] = { 69 /* translate destination alignment field to the source alignment encoding */ 70 {0, 0, 0, 0}, 71 {1, 2, 3, 0}, 72 {1, 2, 3, 0}, 73 {1, 2, 3, 0}, 74 {4, 5, 6, 7}, 75 {4, 5, 6, 7}, 76 {4, 5, 6, 7}, 77 {4, 5, 6, 7}, 78}; 79static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 }; 80 81static int debug_depth = 0; 82#ifdef ATOM_DEBUG 83static void debug_print_spaces(int n) 84{ 85 while (n--) 86 printk(" "); 87} 88 89#define DEBUG(...) do if (atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0) 90#define SDEBUG(...) do if (atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0) 91#else 92#define DEBUG(...) do { } while (0) 93#define SDEBUG(...) do { } while (0) 94#endif 95 96static uint32_t atom_iio_execute(struct atom_context *ctx, int base, 97 uint32_t index, uint32_t data) 98{ 99 uint32_t temp = 0xCDCDCDCD; 100 while (1) 101 switch (CU8(base)) { 102 case ATOM_IIO_NOP: 103 base++; 104 break; 105 case ATOM_IIO_READ: 106 temp = ctx->card->reg_read(ctx->card, CU16(base + 1)); 107 base += 3; 108 break; 109 case ATOM_IIO_WRITE: 110 ctx->card->reg_write(ctx->card, CU16(base + 1), temp); 111 base += 3; 112 break; 113 case ATOM_IIO_CLEAR: 114 temp &= 115 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 116 CU8(base + 2)); 117 base += 3; 118 break; 119 case ATOM_IIO_SET: 120 temp |= 121 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base + 122 2); 123 base += 3; 124 break; 125 case ATOM_IIO_MOVE_INDEX: 126 temp &= 127 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 128 CU8(base + 2)); 129 temp |= 130 ((index >> CU8(base + 2)) & 131 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 132 3); 133 base += 4; 134 break; 135 case ATOM_IIO_MOVE_DATA: 136 temp &= 137 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 138 CU8(base + 2)); 139 temp |= 140 ((data >> CU8(base + 2)) & 141 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 142 3); 143 base += 4; 144 break; 145 case ATOM_IIO_MOVE_ATTR: 146 temp &= 147 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 148 CU8(base + 2)); 149 temp |= 150 ((ctx-> 151 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 - 152 CU8 153 (base 154 + 155 1)))) 156 << CU8(base + 3); 157 base += 4; 158 break; 159 case ATOM_IIO_END: 160 return temp; 161 default: 162 printk(KERN_INFO "Unknown IIO opcode.\n"); 163 return 0; 164 } 165} 166 167static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr, 168 int *ptr, uint32_t *saved, int print) 169{ 170 uint32_t idx, val = 0xCDCDCDCD, align, arg; 171 struct atom_context *gctx = ctx->ctx; 172 arg = attr & 7; 173 align = (attr >> 3) & 7; 174 switch (arg) { 175 case ATOM_ARG_REG: 176 idx = U16(*ptr); 177 (*ptr) += 2; 178 if (print) 179 DEBUG("REG[0x%04X]", idx); 180 idx += gctx->reg_block; 181 switch (gctx->io_mode) { 182 case ATOM_IO_MM: 183 val = gctx->card->reg_read(gctx->card, idx); 184 break; 185 case ATOM_IO_PCI: 186 printk(KERN_INFO 187 "PCI registers are not implemented.\n"); 188 return 0; 189 case ATOM_IO_SYSIO: 190 printk(KERN_INFO 191 "SYSIO registers are not implemented.\n"); 192 return 0; 193 default: 194 if (!(gctx->io_mode & 0x80)) { 195 printk(KERN_INFO "Bad IO mode.\n"); 196 return 0; 197 } 198 if (!gctx->iio[gctx->io_mode & 0x7F]) { 199 printk(KERN_INFO 200 "Undefined indirect IO read method %d.\n", 201 gctx->io_mode & 0x7F); 202 return 0; 203 } 204 val = 205 atom_iio_execute(gctx, 206 gctx->iio[gctx->io_mode & 0x7F], 207 idx, 0); 208 } 209 break; 210 case ATOM_ARG_PS: 211 idx = U8(*ptr); 212 (*ptr)++; 213 val = le32_to_cpu(ctx->ps[idx]); 214 if (print) 215 DEBUG("PS[0x%02X,0x%04X]", idx, val); 216 break; 217 case ATOM_ARG_WS: 218 idx = U8(*ptr); 219 (*ptr)++; 220 if (print) 221 DEBUG("WS[0x%02X]", idx); 222 switch (idx) { 223 case ATOM_WS_QUOTIENT: 224 val = gctx->divmul[0]; 225 break; 226 case ATOM_WS_REMAINDER: 227 val = gctx->divmul[1]; 228 break; 229 case ATOM_WS_DATAPTR: 230 val = gctx->data_block; 231 break; 232 case ATOM_WS_SHIFT: 233 val = gctx->shift; 234 break; 235 case ATOM_WS_OR_MASK: 236 val = 1 << gctx->shift; 237 break; 238 case ATOM_WS_AND_MASK: 239 val = ~(1 << gctx->shift); 240 break; 241 case ATOM_WS_FB_WINDOW: 242 val = gctx->fb_base; 243 break; 244 case ATOM_WS_ATTRIBUTES: 245 val = gctx->io_attr; 246 break; 247 default: 248 val = ctx->ws[idx]; 249 } 250 break; 251 case ATOM_ARG_ID: 252 idx = U16(*ptr); 253 (*ptr) += 2; 254 if (print) { 255 if (gctx->data_block) 256 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block); 257 else 258 DEBUG("ID[0x%04X]", idx); 259 } 260 val = U32(idx + gctx->data_block); 261 break; 262 case ATOM_ARG_FB: 263 idx = U8(*ptr); 264 (*ptr)++; 265 if (print) 266 DEBUG("FB[0x%02X]", idx); 267 printk(KERN_INFO "FB access is not implemented.\n"); 268 return 0; 269 case ATOM_ARG_IMM: 270 switch (align) { 271 case ATOM_SRC_DWORD: 272 val = U32(*ptr); 273 (*ptr) += 4; 274 if (print) 275 DEBUG("IMM 0x%08X\n", val); 276 return val; 277 case ATOM_SRC_WORD0: 278 case ATOM_SRC_WORD8: 279 case ATOM_SRC_WORD16: 280 val = U16(*ptr); 281 (*ptr) += 2; 282 if (print) 283 DEBUG("IMM 0x%04X\n", val); 284 return val; 285 case ATOM_SRC_BYTE0: 286 case ATOM_SRC_BYTE8: 287 case ATOM_SRC_BYTE16: 288 case ATOM_SRC_BYTE24: 289 val = U8(*ptr); 290 (*ptr)++; 291 if (print) 292 DEBUG("IMM 0x%02X\n", val); 293 return val; 294 } 295 return 0; 296 case ATOM_ARG_PLL: 297 idx = U8(*ptr); 298 (*ptr)++; 299 if (print) 300 DEBUG("PLL[0x%02X]", idx); 301 val = gctx->card->pll_read(gctx->card, idx); 302 break; 303 case ATOM_ARG_MC: 304 idx = U8(*ptr); 305 (*ptr)++; 306 if (print) 307 DEBUG("MC[0x%02X]", idx); 308 val = gctx->card->mc_read(gctx->card, idx); 309 break; 310 } 311 if (saved) 312 *saved = val; 313 val &= atom_arg_mask[align]; 314 val >>= atom_arg_shift[align]; 315 if (print) 316 switch (align) { 317 case ATOM_SRC_DWORD: 318 DEBUG(".[31:0] -> 0x%08X\n", val); 319 break; 320 case ATOM_SRC_WORD0: 321 DEBUG(".[15:0] -> 0x%04X\n", val); 322 break; 323 case ATOM_SRC_WORD8: 324 DEBUG(".[23:8] -> 0x%04X\n", val); 325 break; 326 case ATOM_SRC_WORD16: 327 DEBUG(".[31:16] -> 0x%04X\n", val); 328 break; 329 case ATOM_SRC_BYTE0: 330 DEBUG(".[7:0] -> 0x%02X\n", val); 331 break; 332 case ATOM_SRC_BYTE8: 333 DEBUG(".[15:8] -> 0x%02X\n", val); 334 break; 335 case ATOM_SRC_BYTE16: 336 DEBUG(".[23:16] -> 0x%02X\n", val); 337 break; 338 case ATOM_SRC_BYTE24: 339 DEBUG(".[31:24] -> 0x%02X\n", val); 340 break; 341 } 342 return val; 343} 344 345static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr) 346{ 347 uint32_t align = (attr >> 3) & 7, arg = attr & 7; 348 switch (arg) { 349 case ATOM_ARG_REG: 350 case ATOM_ARG_ID: 351 (*ptr) += 2; 352 break; 353 case ATOM_ARG_PLL: 354 case ATOM_ARG_MC: 355 case ATOM_ARG_PS: 356 case ATOM_ARG_WS: 357 case ATOM_ARG_FB: 358 (*ptr)++; 359 break; 360 case ATOM_ARG_IMM: 361 switch (align) { 362 case ATOM_SRC_DWORD: 363 (*ptr) += 4; 364 return; 365 case ATOM_SRC_WORD0: 366 case ATOM_SRC_WORD8: 367 case ATOM_SRC_WORD16: 368 (*ptr) += 2; 369 return; 370 case ATOM_SRC_BYTE0: 371 case ATOM_SRC_BYTE8: 372 case ATOM_SRC_BYTE16: 373 case ATOM_SRC_BYTE24: 374 (*ptr)++; 375 return; 376 } 377 return; 378 } 379} 380 381static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr) 382{ 383 return atom_get_src_int(ctx, attr, ptr, NULL, 1); 384} 385 386static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr, 387 int *ptr, uint32_t *saved, int print) 388{ 389 return atom_get_src_int(ctx, 390 arg | atom_dst_to_src[(attr >> 3) & 391 7][(attr >> 6) & 3] << 3, 392 ptr, saved, print); 393} 394 395static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr) 396{ 397 atom_skip_src_int(ctx, 398 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 399 3] << 3, ptr); 400} 401 402static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr, 403 int *ptr, uint32_t val, uint32_t saved) 404{ 405 uint32_t align = 406 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val = 407 val, idx; 408 struct atom_context *gctx = ctx->ctx; 409 old_val &= atom_arg_mask[align] >> atom_arg_shift[align]; 410 val <<= atom_arg_shift[align]; 411 val &= atom_arg_mask[align]; 412 saved &= ~atom_arg_mask[align]; 413 val |= saved; 414 switch (arg) { 415 case ATOM_ARG_REG: 416 idx = U16(*ptr); 417 (*ptr) += 2; 418 DEBUG("REG[0x%04X]", idx); 419 idx += gctx->reg_block; 420 switch (gctx->io_mode) { 421 case ATOM_IO_MM: 422 if (idx == 0) 423 gctx->card->reg_write(gctx->card, idx, 424 val << 2); 425 else 426 gctx->card->reg_write(gctx->card, idx, val); 427 break; 428 case ATOM_IO_PCI: 429 printk(KERN_INFO 430 "PCI registers are not implemented.\n"); 431 return; 432 case ATOM_IO_SYSIO: 433 printk(KERN_INFO 434 "SYSIO registers are not implemented.\n"); 435 return; 436 default: 437 if (!(gctx->io_mode & 0x80)) { 438 printk(KERN_INFO "Bad IO mode.\n"); 439 return; 440 } 441 if (!gctx->iio[gctx->io_mode & 0xFF]) { 442 printk(KERN_INFO 443 "Undefined indirect IO write method %d.\n", 444 gctx->io_mode & 0x7F); 445 return; 446 } 447 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF], 448 idx, val); 449 } 450 break; 451 case ATOM_ARG_PS: 452 idx = U8(*ptr); 453 (*ptr)++; 454 DEBUG("PS[0x%02X]", idx); 455 ctx->ps[idx] = cpu_to_le32(val); 456 break; 457 case ATOM_ARG_WS: 458 idx = U8(*ptr); 459 (*ptr)++; 460 DEBUG("WS[0x%02X]", idx); 461 switch (idx) { 462 case ATOM_WS_QUOTIENT: 463 gctx->divmul[0] = val; 464 break; 465 case ATOM_WS_REMAINDER: 466 gctx->divmul[1] = val; 467 break; 468 case ATOM_WS_DATAPTR: 469 gctx->data_block = val; 470 break; 471 case ATOM_WS_SHIFT: 472 gctx->shift = val; 473 break; 474 case ATOM_WS_OR_MASK: 475 case ATOM_WS_AND_MASK: 476 break; 477 case ATOM_WS_FB_WINDOW: 478 gctx->fb_base = val; 479 break; 480 case ATOM_WS_ATTRIBUTES: 481 gctx->io_attr = val; 482 break; 483 default: 484 ctx->ws[idx] = val; 485 } 486 break; 487 case ATOM_ARG_FB: 488 idx = U8(*ptr); 489 (*ptr)++; 490 DEBUG("FB[0x%02X]", idx); 491 printk(KERN_INFO "FB access is not implemented.\n"); 492 return; 493 case ATOM_ARG_PLL: 494 idx = U8(*ptr); 495 (*ptr)++; 496 DEBUG("PLL[0x%02X]", idx); 497 gctx->card->pll_write(gctx->card, idx, val); 498 break; 499 case ATOM_ARG_MC: 500 idx = U8(*ptr); 501 (*ptr)++; 502 DEBUG("MC[0x%02X]", idx); 503 gctx->card->mc_write(gctx->card, idx, val); 504 return; 505 } 506 switch (align) { 507 case ATOM_SRC_DWORD: 508 DEBUG(".[31:0] <- 0x%08X\n", old_val); 509 break; 510 case ATOM_SRC_WORD0: 511 DEBUG(".[15:0] <- 0x%04X\n", old_val); 512 break; 513 case ATOM_SRC_WORD8: 514 DEBUG(".[23:8] <- 0x%04X\n", old_val); 515 break; 516 case ATOM_SRC_WORD16: 517 DEBUG(".[31:16] <- 0x%04X\n", old_val); 518 break; 519 case ATOM_SRC_BYTE0: 520 DEBUG(".[7:0] <- 0x%02X\n", old_val); 521 break; 522 case ATOM_SRC_BYTE8: 523 DEBUG(".[15:8] <- 0x%02X\n", old_val); 524 break; 525 case ATOM_SRC_BYTE16: 526 DEBUG(".[23:16] <- 0x%02X\n", old_val); 527 break; 528 case ATOM_SRC_BYTE24: 529 DEBUG(".[31:24] <- 0x%02X\n", old_val); 530 break; 531 } 532} 533 534static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg) 535{ 536 uint8_t attr = U8((*ptr)++); 537 uint32_t dst, src, saved; 538 int dptr = *ptr; 539 SDEBUG(" dst: "); 540 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 541 SDEBUG(" src: "); 542 src = atom_get_src(ctx, attr, ptr); 543 dst += src; 544 SDEBUG(" dst: "); 545 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 546} 547 548static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg) 549{ 550 uint8_t attr = U8((*ptr)++); 551 uint32_t dst, src, saved; 552 int dptr = *ptr; 553 SDEBUG(" dst: "); 554 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 555 SDEBUG(" src: "); 556 src = atom_get_src(ctx, attr, ptr); 557 dst &= src; 558 SDEBUG(" dst: "); 559 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 560} 561 562static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg) 563{ 564 printk("ATOM BIOS beeped!\n"); 565} 566 567static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg) 568{ 569 int idx = U8((*ptr)++); 570 if (idx < ATOM_TABLE_NAMES_CNT) 571 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]); 572 else 573 SDEBUG(" table: %d\n", idx); 574 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx)) 575 atom_execute_table(ctx->ctx, idx, ctx->ps + ctx->ps_shift); 576} 577 578static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg) 579{ 580 uint8_t attr = U8((*ptr)++); 581 uint32_t saved; 582 int dptr = *ptr; 583 attr &= 0x38; 584 attr |= atom_def_dst[attr >> 3] << 6; 585 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 586 SDEBUG(" dst: "); 587 atom_put_dst(ctx, arg, attr, &dptr, 0, saved); 588} 589 590static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg) 591{ 592 uint8_t attr = U8((*ptr)++); 593 uint32_t dst, src; 594 SDEBUG(" src1: "); 595 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 596 SDEBUG(" src2: "); 597 src = atom_get_src(ctx, attr, ptr); 598 ctx->ctx->cs_equal = (dst == src); 599 ctx->ctx->cs_above = (dst > src); 600 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE", 601 ctx->ctx->cs_above ? "GT" : "LE"); 602} 603 604static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg) 605{ 606 uint8_t count = U8((*ptr)++); 607 SDEBUG(" count: %d\n", count); 608 if (arg == ATOM_UNIT_MICROSEC) 609 schedule_timeout_uninterruptible(usecs_to_jiffies(count)); 610 else 611 schedule_timeout_uninterruptible(msecs_to_jiffies(count)); 612} 613 614static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg) 615{ 616 uint8_t attr = U8((*ptr)++); 617 uint32_t dst, src; 618 SDEBUG(" src1: "); 619 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 620 SDEBUG(" src2: "); 621 src = atom_get_src(ctx, attr, ptr); 622 if (src != 0) { 623 ctx->ctx->divmul[0] = dst / src; 624 ctx->ctx->divmul[1] = dst % src; 625 } else { 626 ctx->ctx->divmul[0] = 0; 627 ctx->ctx->divmul[1] = 0; 628 } 629} 630 631static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg) 632{ 633 /* functionally, a nop */ 634} 635 636static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg) 637{ 638 int execute = 0, target = U16(*ptr); 639 (*ptr) += 2; 640 switch (arg) { 641 case ATOM_COND_ABOVE: 642 execute = ctx->ctx->cs_above; 643 break; 644 case ATOM_COND_ABOVEOREQUAL: 645 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal; 646 break; 647 case ATOM_COND_ALWAYS: 648 execute = 1; 649 break; 650 case ATOM_COND_BELOW: 651 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal); 652 break; 653 case ATOM_COND_BELOWOREQUAL: 654 execute = !ctx->ctx->cs_above; 655 break; 656 case ATOM_COND_EQUAL: 657 execute = ctx->ctx->cs_equal; 658 break; 659 case ATOM_COND_NOTEQUAL: 660 execute = !ctx->ctx->cs_equal; 661 break; 662 } 663 if (arg != ATOM_COND_ALWAYS) 664 SDEBUG(" taken: %s\n", execute ? "yes" : "no"); 665 SDEBUG(" target: 0x%04X\n", target); 666 if (execute) 667 *ptr = ctx->start + target; 668} 669 670static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg) 671{ 672 uint8_t attr = U8((*ptr)++); 673 uint32_t dst, src1, src2, saved; 674 int dptr = *ptr; 675 SDEBUG(" dst: "); 676 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 677 SDEBUG(" src1: "); 678 src1 = atom_get_src(ctx, attr, ptr); 679 SDEBUG(" src2: "); 680 src2 = atom_get_src(ctx, attr, ptr); 681 dst &= src1; 682 dst |= src2; 683 SDEBUG(" dst: "); 684 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 685} 686 687static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg) 688{ 689 uint8_t attr = U8((*ptr)++); 690 uint32_t src, saved; 691 int dptr = *ptr; 692 if (((attr >> 3) & 7) != ATOM_SRC_DWORD) 693 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 694 else { 695 atom_skip_dst(ctx, arg, attr, ptr); 696 saved = 0xCDCDCDCD; 697 } 698 SDEBUG(" src: "); 699 src = atom_get_src(ctx, attr, ptr); 700 SDEBUG(" dst: "); 701 atom_put_dst(ctx, arg, attr, &dptr, src, saved); 702} 703 704static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg) 705{ 706 uint8_t attr = U8((*ptr)++); 707 uint32_t dst, src; 708 SDEBUG(" src1: "); 709 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 710 SDEBUG(" src2: "); 711 src = atom_get_src(ctx, attr, ptr); 712 ctx->ctx->divmul[0] = dst * src; 713} 714 715static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg) 716{ 717 /* nothing */ 718} 719 720static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg) 721{ 722 uint8_t attr = U8((*ptr)++); 723 uint32_t dst, src, saved; 724 int dptr = *ptr; 725 SDEBUG(" dst: "); 726 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 727 SDEBUG(" src: "); 728 src = atom_get_src(ctx, attr, ptr); 729 dst |= src; 730 SDEBUG(" dst: "); 731 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 732} 733 734static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg) 735{ 736 uint8_t val = U8((*ptr)++); 737 SDEBUG("POST card output: 0x%02X\n", val); 738} 739 740static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg) 741{ 742 printk(KERN_INFO "unimplemented!\n"); 743} 744 745static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg) 746{ 747 printk(KERN_INFO "unimplemented!\n"); 748} 749 750static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg) 751{ 752 printk(KERN_INFO "unimplemented!\n"); 753} 754 755static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg) 756{ 757 int idx = U8(*ptr); 758 (*ptr)++; 759 SDEBUG(" block: %d\n", idx); 760 if (!idx) 761 ctx->ctx->data_block = 0; 762 else if (idx == 255) 763 ctx->ctx->data_block = ctx->start; 764 else 765 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx); 766 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block); 767} 768 769static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg) 770{ 771 uint8_t attr = U8((*ptr)++); 772 SDEBUG(" fb_base: "); 773 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr); 774} 775 776static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg) 777{ 778 int port; 779 switch (arg) { 780 case ATOM_PORT_ATI: 781 port = U16(*ptr); 782 if (port < ATOM_IO_NAMES_CNT) 783 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]); 784 else 785 SDEBUG(" port: %d\n", port); 786 if (!port) 787 ctx->ctx->io_mode = ATOM_IO_MM; 788 else 789 ctx->ctx->io_mode = ATOM_IO_IIO | port; 790 (*ptr) += 2; 791 break; 792 case ATOM_PORT_PCI: 793 ctx->ctx->io_mode = ATOM_IO_PCI; 794 (*ptr)++; 795 break; 796 case ATOM_PORT_SYSIO: 797 ctx->ctx->io_mode = ATOM_IO_SYSIO; 798 (*ptr)++; 799 break; 800 } 801} 802 803static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg) 804{ 805 ctx->ctx->reg_block = U16(*ptr); 806 (*ptr) += 2; 807 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block); 808} 809 810static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg) 811{ 812 uint8_t attr = U8((*ptr)++), shift; 813 uint32_t saved, dst; 814 int dptr = *ptr; 815 attr &= 0x38; 816 attr |= atom_def_dst[attr >> 3] << 6; 817 SDEBUG(" dst: "); 818 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 819 shift = U8((*ptr)++); 820 SDEBUG(" shift: %d\n", shift); 821 dst <<= shift; 822 SDEBUG(" dst: "); 823 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 824} 825 826static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg) 827{ 828 uint8_t attr = U8((*ptr)++), shift; 829 uint32_t saved, dst; 830 int dptr = *ptr; 831 attr &= 0x38; 832 attr |= atom_def_dst[attr >> 3] << 6; 833 SDEBUG(" dst: "); 834 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 835 shift = U8((*ptr)++); 836 SDEBUG(" shift: %d\n", shift); 837 dst >>= shift; 838 SDEBUG(" dst: "); 839 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 840} 841 842static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg) 843{ 844 uint8_t attr = U8((*ptr)++); 845 uint32_t dst, src, saved; 846 int dptr = *ptr; 847 SDEBUG(" dst: "); 848 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 849 SDEBUG(" src: "); 850 src = atom_get_src(ctx, attr, ptr); 851 dst -= src; 852 SDEBUG(" dst: "); 853 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 854} 855 856static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg) 857{ 858 uint8_t attr = U8((*ptr)++); 859 uint32_t src, val, target; 860 SDEBUG(" switch: "); 861 src = atom_get_src(ctx, attr, ptr); 862 while (U16(*ptr) != ATOM_CASE_END) 863 if (U8(*ptr) == ATOM_CASE_MAGIC) { 864 (*ptr)++; 865 SDEBUG(" case: "); 866 val = 867 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM, 868 ptr); 869 target = U16(*ptr); 870 if (val == src) { 871 SDEBUG(" target: %04X\n", target); 872 *ptr = ctx->start + target; 873 return; 874 } 875 (*ptr) += 2; 876 } else { 877 printk(KERN_INFO "Bad case.\n"); 878 return; 879 } 880 (*ptr) += 2; 881} 882 883static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg) 884{ 885 uint8_t attr = U8((*ptr)++); 886 uint32_t dst, src; 887 SDEBUG(" src1: "); 888 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 889 SDEBUG(" src2: "); 890 src = atom_get_src(ctx, attr, ptr); 891 ctx->ctx->cs_equal = ((dst & src) == 0); 892 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE"); 893} 894 895static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg) 896{ 897 uint8_t attr = U8((*ptr)++); 898 uint32_t dst, src, saved; 899 int dptr = *ptr; 900 SDEBUG(" dst: "); 901 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 902 SDEBUG(" src: "); 903 src = atom_get_src(ctx, attr, ptr); 904 dst ^= src; 905 SDEBUG(" dst: "); 906 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 907} 908 909static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg) 910{ 911 printk(KERN_INFO "unimplemented!\n"); 912} 913 914static struct { 915 void (*func) (atom_exec_context *, int *, int); 916 int arg; 917} opcode_table[ATOM_OP_CNT] = { 918 { 919 NULL, 0}, { 920 atom_op_move, ATOM_ARG_REG}, { 921 atom_op_move, ATOM_ARG_PS}, { 922 atom_op_move, ATOM_ARG_WS}, { 923 atom_op_move, ATOM_ARG_FB}, { 924 atom_op_move, ATOM_ARG_PLL}, { 925 atom_op_move, ATOM_ARG_MC}, { 926 atom_op_and, ATOM_ARG_REG}, { 927 atom_op_and, ATOM_ARG_PS}, { 928 atom_op_and, ATOM_ARG_WS}, { 929 atom_op_and, ATOM_ARG_FB}, { 930 atom_op_and, ATOM_ARG_PLL}, { 931 atom_op_and, ATOM_ARG_MC}, { 932 atom_op_or, ATOM_ARG_REG}, { 933 atom_op_or, ATOM_ARG_PS}, { 934 atom_op_or, ATOM_ARG_WS}, { 935 atom_op_or, ATOM_ARG_FB}, { 936 atom_op_or, ATOM_ARG_PLL}, { 937 atom_op_or, ATOM_ARG_MC}, { 938 atom_op_shl, ATOM_ARG_REG}, { 939 atom_op_shl, ATOM_ARG_PS}, { 940 atom_op_shl, ATOM_ARG_WS}, { 941 atom_op_shl, ATOM_ARG_FB}, { 942 atom_op_shl, ATOM_ARG_PLL}, { 943 atom_op_shl, ATOM_ARG_MC}, { 944 atom_op_shr, ATOM_ARG_REG}, { 945 atom_op_shr, ATOM_ARG_PS}, { 946 atom_op_shr, ATOM_ARG_WS}, { 947 atom_op_shr, ATOM_ARG_FB}, { 948 atom_op_shr, ATOM_ARG_PLL}, { 949 atom_op_shr, ATOM_ARG_MC}, { 950 atom_op_mul, ATOM_ARG_REG}, { 951 atom_op_mul, ATOM_ARG_PS}, { 952 atom_op_mul, ATOM_ARG_WS}, { 953 atom_op_mul, ATOM_ARG_FB}, { 954 atom_op_mul, ATOM_ARG_PLL}, { 955 atom_op_mul, ATOM_ARG_MC}, { 956 atom_op_div, ATOM_ARG_REG}, { 957 atom_op_div, ATOM_ARG_PS}, { 958 atom_op_div, ATOM_ARG_WS}, { 959 atom_op_div, ATOM_ARG_FB}, { 960 atom_op_div, ATOM_ARG_PLL}, { 961 atom_op_div, ATOM_ARG_MC}, { 962 atom_op_add, ATOM_ARG_REG}, { 963 atom_op_add, ATOM_ARG_PS}, { 964 atom_op_add, ATOM_ARG_WS}, { 965 atom_op_add, ATOM_ARG_FB}, { 966 atom_op_add, ATOM_ARG_PLL}, { 967 atom_op_add, ATOM_ARG_MC}, { 968 atom_op_sub, ATOM_ARG_REG}, { 969 atom_op_sub, ATOM_ARG_PS}, { 970 atom_op_sub, ATOM_ARG_WS}, { 971 atom_op_sub, ATOM_ARG_FB}, { 972 atom_op_sub, ATOM_ARG_PLL}, { 973 atom_op_sub, ATOM_ARG_MC}, { 974 atom_op_setport, ATOM_PORT_ATI}, { 975 atom_op_setport, ATOM_PORT_PCI}, { 976 atom_op_setport, ATOM_PORT_SYSIO}, { 977 atom_op_setregblock, 0}, { 978 atom_op_setfbbase, 0}, { 979 atom_op_compare, ATOM_ARG_REG}, { 980 atom_op_compare, ATOM_ARG_PS}, { 981 atom_op_compare, ATOM_ARG_WS}, { 982 atom_op_compare, ATOM_ARG_FB}, { 983 atom_op_compare, ATOM_ARG_PLL}, { 984 atom_op_compare, ATOM_ARG_MC}, { 985 atom_op_switch, 0}, { 986 atom_op_jump, ATOM_COND_ALWAYS}, { 987 atom_op_jump, ATOM_COND_EQUAL}, { 988 atom_op_jump, ATOM_COND_BELOW}, { 989 atom_op_jump, ATOM_COND_ABOVE}, { 990 atom_op_jump, ATOM_COND_BELOWOREQUAL}, { 991 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, { 992 atom_op_jump, ATOM_COND_NOTEQUAL}, { 993 atom_op_test, ATOM_ARG_REG}, { 994 atom_op_test, ATOM_ARG_PS}, { 995 atom_op_test, ATOM_ARG_WS}, { 996 atom_op_test, ATOM_ARG_FB}, { 997 atom_op_test, ATOM_ARG_PLL}, { 998 atom_op_test, ATOM_ARG_MC}, { 999 atom_op_delay, ATOM_UNIT_MILLISEC}, { 1000 atom_op_delay, ATOM_UNIT_MICROSEC}, { 1001 atom_op_calltable, 0}, { 1002 atom_op_repeat, 0}, { 1003 atom_op_clear, ATOM_ARG_REG}, { 1004 atom_op_clear, ATOM_ARG_PS}, { 1005 atom_op_clear, ATOM_ARG_WS}, { 1006 atom_op_clear, ATOM_ARG_FB}, { 1007 atom_op_clear, ATOM_ARG_PLL}, { 1008 atom_op_clear, ATOM_ARG_MC}, { 1009 atom_op_nop, 0}, { 1010 atom_op_eot, 0}, { 1011 atom_op_mask, ATOM_ARG_REG}, { 1012 atom_op_mask, ATOM_ARG_PS}, { 1013 atom_op_mask, ATOM_ARG_WS}, { 1014 atom_op_mask, ATOM_ARG_FB}, { 1015 atom_op_mask, ATOM_ARG_PLL}, { 1016 atom_op_mask, ATOM_ARG_MC}, { 1017 atom_op_postcard, 0}, { 1018 atom_op_beep, 0}, { 1019 atom_op_savereg, 0}, { 1020 atom_op_restorereg, 0}, { 1021 atom_op_setdatablock, 0}, { 1022 atom_op_xor, ATOM_ARG_REG}, { 1023 atom_op_xor, ATOM_ARG_PS}, { 1024 atom_op_xor, ATOM_ARG_WS}, { 1025 atom_op_xor, ATOM_ARG_FB}, { 1026 atom_op_xor, ATOM_ARG_PLL}, { 1027 atom_op_xor, ATOM_ARG_MC}, { 1028 atom_op_shl, ATOM_ARG_REG}, { 1029 atom_op_shl, ATOM_ARG_PS}, { 1030 atom_op_shl, ATOM_ARG_WS}, { 1031 atom_op_shl, ATOM_ARG_FB}, { 1032 atom_op_shl, ATOM_ARG_PLL}, { 1033 atom_op_shl, ATOM_ARG_MC}, { 1034 atom_op_shr, ATOM_ARG_REG}, { 1035 atom_op_shr, ATOM_ARG_PS}, { 1036 atom_op_shr, ATOM_ARG_WS}, { 1037 atom_op_shr, ATOM_ARG_FB}, { 1038 atom_op_shr, ATOM_ARG_PLL}, { 1039 atom_op_shr, ATOM_ARG_MC}, { 1040atom_op_debug, 0},}; 1041 1042void atom_execute_table(struct atom_context *ctx, int index, uint32_t * params) 1043{ 1044 int base = CU16(ctx->cmd_table + 4 + 2 * index); 1045 int len, ws, ps, ptr; 1046 unsigned char op; 1047 atom_exec_context ectx; 1048 1049 if (!base) 1050 return; 1051 1052 len = CU16(base + ATOM_CT_SIZE_PTR); 1053 ws = CU8(base + ATOM_CT_WS_PTR); 1054 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK; 1055 ptr = base + ATOM_CT_CODE_PTR; 1056 1057 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps); 1058 1059 /* reset reg block */ 1060 ctx->reg_block = 0; 1061 ectx.ctx = ctx; 1062 ectx.ps_shift = ps / 4; 1063 ectx.start = base; 1064 ectx.ps = params; 1065 if (ws) 1066 ectx.ws = kzalloc(4 * ws, GFP_KERNEL); 1067 else 1068 ectx.ws = NULL; 1069 1070 debug_depth++; 1071 while (1) { 1072 op = CU8(ptr++); 1073 if (op < ATOM_OP_NAMES_CNT) 1074 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1); 1075 else 1076 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1); 1077 1078 if (op < ATOM_OP_CNT && op > 0) 1079 opcode_table[op].func(&ectx, &ptr, 1080 opcode_table[op].arg); 1081 else 1082 break; 1083 1084 if (op == ATOM_OP_EOT) 1085 break; 1086 } 1087 debug_depth--; 1088 SDEBUG("<<\n"); 1089 1090 if (ws) 1091 kfree(ectx.ws); 1092} 1093 1094static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 }; 1095 1096static void atom_index_iio(struct atom_context *ctx, int base) 1097{ 1098 ctx->iio = kzalloc(2 * 256, GFP_KERNEL); 1099 while (CU8(base) == ATOM_IIO_START) { 1100 ctx->iio[CU8(base + 1)] = base + 2; 1101 base += 2; 1102 while (CU8(base) != ATOM_IIO_END) 1103 base += atom_iio_len[CU8(base)]; 1104 base += 3; 1105 } 1106} 1107 1108struct atom_context *atom_parse(struct card_info *card, void *bios) 1109{ 1110 int base; 1111 struct atom_context *ctx = 1112 kzalloc(sizeof(struct atom_context), GFP_KERNEL); 1113 char *str; 1114 char name[512]; 1115 int i; 1116 1117 ctx->card = card; 1118 ctx->bios = bios; 1119 1120 if (CU16(0) != ATOM_BIOS_MAGIC) { 1121 printk(KERN_INFO "Invalid BIOS magic.\n"); 1122 kfree(ctx); 1123 return NULL; 1124 } 1125 if (strncmp 1126 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC, 1127 strlen(ATOM_ATI_MAGIC))) { 1128 printk(KERN_INFO "Invalid ATI magic.\n"); 1129 kfree(ctx); 1130 return NULL; 1131 } 1132 1133 base = CU16(ATOM_ROM_TABLE_PTR); 1134 if (strncmp 1135 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC, 1136 strlen(ATOM_ROM_MAGIC))) { 1137 printk(KERN_INFO "Invalid ATOM magic.\n"); 1138 kfree(ctx); 1139 return NULL; 1140 } 1141 1142 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR); 1143 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR); 1144 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4); 1145 1146 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR)); 1147 while (*str && ((*str == '\n') || (*str == '\r'))) 1148 str++; 1149 /* name string isn't always 0 terminated */ 1150 for (i = 0; i < 511; i++) { 1151 name[i] = str[i]; 1152 if (name[i] < '.' || name[i] > 'z') { 1153 name[i] = 0; 1154 break; 1155 } 1156 } 1157 printk(KERN_INFO "ATOM BIOS: %s\n", name); 1158 1159 return ctx; 1160} 1161 1162int atom_asic_init(struct atom_context *ctx) 1163{ 1164 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR); 1165 uint32_t ps[16]; 1166 memset(ps, 0, 64); 1167 1168 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR)); 1169 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR)); 1170 if (!ps[0] || !ps[1]) 1171 return 1; 1172 1173 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT)) 1174 return 1; 1175 atom_execute_table(ctx, ATOM_CMD_INIT, ps); 1176 1177 return 0; 1178} 1179 1180void atom_destroy(struct atom_context *ctx) 1181{ 1182 if (ctx->iio) 1183 kfree(ctx->iio); 1184 kfree(ctx); 1185} 1186 1187void atom_parse_data_header(struct atom_context *ctx, int index, 1188 uint16_t * size, uint8_t * frev, uint8_t * crev, 1189 uint16_t * data_start) 1190{ 1191 int offset = index * 2 + 4; 1192 int idx = CU16(ctx->data_table + offset); 1193 1194 if (size) 1195 *size = CU16(idx); 1196 if (frev) 1197 *frev = CU8(idx + 2); 1198 if (crev) 1199 *crev = CU8(idx + 3); 1200 *data_start = idx; 1201 return; 1202} 1203 1204void atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev, 1205 uint8_t * crev) 1206{ 1207 int offset = index * 2 + 4; 1208 int idx = CU16(ctx->cmd_table + offset); 1209 1210 if (frev) 1211 *frev = CU8(idx + 2); 1212 if (crev) 1213 *crev = CU8(idx + 3); 1214 return; 1215} 1216