atom.c revision 6a8a2d702b33c6ed5c789f21b4e89fdf221f01ca
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; 61static void atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params); 62void atom_execute_table(struct atom_context *ctx, int index, uint32_t * params); 63 64static uint32_t atom_arg_mask[8] = 65 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000, 660xFF000000 }; 67static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 }; 68 69static int atom_dst_to_src[8][4] = { 70 /* translate destination alignment field to the source alignment encoding */ 71 {0, 0, 0, 0}, 72 {1, 2, 3, 0}, 73 {1, 2, 3, 0}, 74 {1, 2, 3, 0}, 75 {4, 5, 6, 7}, 76 {4, 5, 6, 7}, 77 {4, 5, 6, 7}, 78 {4, 5, 6, 7}, 79}; 80static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 }; 81 82static int debug_depth = 0; 83#ifdef ATOM_DEBUG 84static void debug_print_spaces(int n) 85{ 86 while (n--) 87 printk(" "); 88} 89 90#define DEBUG(...) do if (atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0) 91#define SDEBUG(...) do if (atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0) 92#else 93#define DEBUG(...) do { } while (0) 94#define SDEBUG(...) do { } while (0) 95#endif 96 97static uint32_t atom_iio_execute(struct atom_context *ctx, int base, 98 uint32_t index, uint32_t data) 99{ 100 uint32_t temp = 0xCDCDCDCD; 101 while (1) 102 switch (CU8(base)) { 103 case ATOM_IIO_NOP: 104 base++; 105 break; 106 case ATOM_IIO_READ: 107 temp = ctx->card->reg_read(ctx->card, CU16(base + 1)); 108 base += 3; 109 break; 110 case ATOM_IIO_WRITE: 111 (void)ctx->card->reg_read(ctx->card, CU16(base + 1)); 112 ctx->card->reg_write(ctx->card, CU16(base + 1), temp); 113 base += 3; 114 break; 115 case ATOM_IIO_CLEAR: 116 temp &= 117 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 118 CU8(base + 2)); 119 base += 3; 120 break; 121 case ATOM_IIO_SET: 122 temp |= 123 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base + 124 2); 125 base += 3; 126 break; 127 case ATOM_IIO_MOVE_INDEX: 128 temp &= 129 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 130 CU8(base + 2)); 131 temp |= 132 ((index >> CU8(base + 2)) & 133 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 134 3); 135 base += 4; 136 break; 137 case ATOM_IIO_MOVE_DATA: 138 temp &= 139 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 140 CU8(base + 2)); 141 temp |= 142 ((data >> CU8(base + 2)) & 143 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 144 3); 145 base += 4; 146 break; 147 case ATOM_IIO_MOVE_ATTR: 148 temp &= 149 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 150 CU8(base + 2)); 151 temp |= 152 ((ctx-> 153 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 - 154 CU8 155 (base 156 + 157 1)))) 158 << CU8(base + 3); 159 base += 4; 160 break; 161 case ATOM_IIO_END: 162 return temp; 163 default: 164 printk(KERN_INFO "Unknown IIO opcode.\n"); 165 return 0; 166 } 167} 168 169static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr, 170 int *ptr, uint32_t *saved, int print) 171{ 172 uint32_t idx, val = 0xCDCDCDCD, align, arg; 173 struct atom_context *gctx = ctx->ctx; 174 arg = attr & 7; 175 align = (attr >> 3) & 7; 176 switch (arg) { 177 case ATOM_ARG_REG: 178 idx = U16(*ptr); 179 (*ptr) += 2; 180 if (print) 181 DEBUG("REG[0x%04X]", idx); 182 idx += gctx->reg_block; 183 switch (gctx->io_mode) { 184 case ATOM_IO_MM: 185 val = gctx->card->reg_read(gctx->card, idx); 186 break; 187 case ATOM_IO_PCI: 188 printk(KERN_INFO 189 "PCI registers are not implemented.\n"); 190 return 0; 191 case ATOM_IO_SYSIO: 192 printk(KERN_INFO 193 "SYSIO registers are not implemented.\n"); 194 return 0; 195 default: 196 if (!(gctx->io_mode & 0x80)) { 197 printk(KERN_INFO "Bad IO mode.\n"); 198 return 0; 199 } 200 if (!gctx->iio[gctx->io_mode & 0x7F]) { 201 printk(KERN_INFO 202 "Undefined indirect IO read method %d.\n", 203 gctx->io_mode & 0x7F); 204 return 0; 205 } 206 val = 207 atom_iio_execute(gctx, 208 gctx->iio[gctx->io_mode & 0x7F], 209 idx, 0); 210 } 211 break; 212 case ATOM_ARG_PS: 213 idx = U8(*ptr); 214 (*ptr)++; 215 val = le32_to_cpu(ctx->ps[idx]); 216 if (print) 217 DEBUG("PS[0x%02X,0x%04X]", idx, val); 218 break; 219 case ATOM_ARG_WS: 220 idx = U8(*ptr); 221 (*ptr)++; 222 if (print) 223 DEBUG("WS[0x%02X]", idx); 224 switch (idx) { 225 case ATOM_WS_QUOTIENT: 226 val = gctx->divmul[0]; 227 break; 228 case ATOM_WS_REMAINDER: 229 val = gctx->divmul[1]; 230 break; 231 case ATOM_WS_DATAPTR: 232 val = gctx->data_block; 233 break; 234 case ATOM_WS_SHIFT: 235 val = gctx->shift; 236 break; 237 case ATOM_WS_OR_MASK: 238 val = 1 << gctx->shift; 239 break; 240 case ATOM_WS_AND_MASK: 241 val = ~(1 << gctx->shift); 242 break; 243 case ATOM_WS_FB_WINDOW: 244 val = gctx->fb_base; 245 break; 246 case ATOM_WS_ATTRIBUTES: 247 val = gctx->io_attr; 248 break; 249 case ATOM_WS_REGPTR: 250 val = gctx->reg_block; 251 break; 252 default: 253 val = ctx->ws[idx]; 254 } 255 break; 256 case ATOM_ARG_ID: 257 idx = U16(*ptr); 258 (*ptr) += 2; 259 if (print) { 260 if (gctx->data_block) 261 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block); 262 else 263 DEBUG("ID[0x%04X]", idx); 264 } 265 val = U32(idx + gctx->data_block); 266 break; 267 case ATOM_ARG_FB: 268 idx = U8(*ptr); 269 (*ptr)++; 270 val = gctx->scratch[((gctx->fb_base + idx) / 4)]; 271 if (print) 272 DEBUG("FB[0x%02X]", idx); 273 break; 274 case ATOM_ARG_IMM: 275 switch (align) { 276 case ATOM_SRC_DWORD: 277 val = U32(*ptr); 278 (*ptr) += 4; 279 if (print) 280 DEBUG("IMM 0x%08X\n", val); 281 return val; 282 case ATOM_SRC_WORD0: 283 case ATOM_SRC_WORD8: 284 case ATOM_SRC_WORD16: 285 val = U16(*ptr); 286 (*ptr) += 2; 287 if (print) 288 DEBUG("IMM 0x%04X\n", val); 289 return val; 290 case ATOM_SRC_BYTE0: 291 case ATOM_SRC_BYTE8: 292 case ATOM_SRC_BYTE16: 293 case ATOM_SRC_BYTE24: 294 val = U8(*ptr); 295 (*ptr)++; 296 if (print) 297 DEBUG("IMM 0x%02X\n", val); 298 return val; 299 } 300 return 0; 301 case ATOM_ARG_PLL: 302 idx = U8(*ptr); 303 (*ptr)++; 304 if (print) 305 DEBUG("PLL[0x%02X]", idx); 306 val = gctx->card->pll_read(gctx->card, idx); 307 break; 308 case ATOM_ARG_MC: 309 idx = U8(*ptr); 310 (*ptr)++; 311 if (print) 312 DEBUG("MC[0x%02X]", idx); 313 val = gctx->card->mc_read(gctx->card, idx); 314 break; 315 } 316 if (saved) 317 *saved = val; 318 val &= atom_arg_mask[align]; 319 val >>= atom_arg_shift[align]; 320 if (print) 321 switch (align) { 322 case ATOM_SRC_DWORD: 323 DEBUG(".[31:0] -> 0x%08X\n", val); 324 break; 325 case ATOM_SRC_WORD0: 326 DEBUG(".[15:0] -> 0x%04X\n", val); 327 break; 328 case ATOM_SRC_WORD8: 329 DEBUG(".[23:8] -> 0x%04X\n", val); 330 break; 331 case ATOM_SRC_WORD16: 332 DEBUG(".[31:16] -> 0x%04X\n", val); 333 break; 334 case ATOM_SRC_BYTE0: 335 DEBUG(".[7:0] -> 0x%02X\n", val); 336 break; 337 case ATOM_SRC_BYTE8: 338 DEBUG(".[15:8] -> 0x%02X\n", val); 339 break; 340 case ATOM_SRC_BYTE16: 341 DEBUG(".[23:16] -> 0x%02X\n", val); 342 break; 343 case ATOM_SRC_BYTE24: 344 DEBUG(".[31:24] -> 0x%02X\n", val); 345 break; 346 } 347 return val; 348} 349 350static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr) 351{ 352 uint32_t align = (attr >> 3) & 7, arg = attr & 7; 353 switch (arg) { 354 case ATOM_ARG_REG: 355 case ATOM_ARG_ID: 356 (*ptr) += 2; 357 break; 358 case ATOM_ARG_PLL: 359 case ATOM_ARG_MC: 360 case ATOM_ARG_PS: 361 case ATOM_ARG_WS: 362 case ATOM_ARG_FB: 363 (*ptr)++; 364 break; 365 case ATOM_ARG_IMM: 366 switch (align) { 367 case ATOM_SRC_DWORD: 368 (*ptr) += 4; 369 return; 370 case ATOM_SRC_WORD0: 371 case ATOM_SRC_WORD8: 372 case ATOM_SRC_WORD16: 373 (*ptr) += 2; 374 return; 375 case ATOM_SRC_BYTE0: 376 case ATOM_SRC_BYTE8: 377 case ATOM_SRC_BYTE16: 378 case ATOM_SRC_BYTE24: 379 (*ptr)++; 380 return; 381 } 382 return; 383 } 384} 385 386static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr) 387{ 388 return atom_get_src_int(ctx, attr, ptr, NULL, 1); 389} 390 391static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr) 392{ 393 uint32_t val = 0xCDCDCDCD; 394 395 switch (align) { 396 case ATOM_SRC_DWORD: 397 val = U32(*ptr); 398 (*ptr) += 4; 399 break; 400 case ATOM_SRC_WORD0: 401 case ATOM_SRC_WORD8: 402 case ATOM_SRC_WORD16: 403 val = U16(*ptr); 404 (*ptr) += 2; 405 break; 406 case ATOM_SRC_BYTE0: 407 case ATOM_SRC_BYTE8: 408 case ATOM_SRC_BYTE16: 409 case ATOM_SRC_BYTE24: 410 val = U8(*ptr); 411 (*ptr)++; 412 break; 413 } 414 return val; 415} 416 417static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr, 418 int *ptr, uint32_t *saved, int print) 419{ 420 return atom_get_src_int(ctx, 421 arg | atom_dst_to_src[(attr >> 3) & 422 7][(attr >> 6) & 3] << 3, 423 ptr, saved, print); 424} 425 426static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr) 427{ 428 atom_skip_src_int(ctx, 429 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 430 3] << 3, ptr); 431} 432 433static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr, 434 int *ptr, uint32_t val, uint32_t saved) 435{ 436 uint32_t align = 437 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val = 438 val, idx; 439 struct atom_context *gctx = ctx->ctx; 440 old_val &= atom_arg_mask[align] >> atom_arg_shift[align]; 441 val <<= atom_arg_shift[align]; 442 val &= atom_arg_mask[align]; 443 saved &= ~atom_arg_mask[align]; 444 val |= saved; 445 switch (arg) { 446 case ATOM_ARG_REG: 447 idx = U16(*ptr); 448 (*ptr) += 2; 449 DEBUG("REG[0x%04X]", idx); 450 idx += gctx->reg_block; 451 switch (gctx->io_mode) { 452 case ATOM_IO_MM: 453 if (idx == 0) 454 gctx->card->reg_write(gctx->card, idx, 455 val << 2); 456 else 457 gctx->card->reg_write(gctx->card, idx, val); 458 break; 459 case ATOM_IO_PCI: 460 printk(KERN_INFO 461 "PCI registers are not implemented.\n"); 462 return; 463 case ATOM_IO_SYSIO: 464 printk(KERN_INFO 465 "SYSIO registers are not implemented.\n"); 466 return; 467 default: 468 if (!(gctx->io_mode & 0x80)) { 469 printk(KERN_INFO "Bad IO mode.\n"); 470 return; 471 } 472 if (!gctx->iio[gctx->io_mode & 0xFF]) { 473 printk(KERN_INFO 474 "Undefined indirect IO write method %d.\n", 475 gctx->io_mode & 0x7F); 476 return; 477 } 478 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF], 479 idx, val); 480 } 481 break; 482 case ATOM_ARG_PS: 483 idx = U8(*ptr); 484 (*ptr)++; 485 DEBUG("PS[0x%02X]", idx); 486 ctx->ps[idx] = cpu_to_le32(val); 487 break; 488 case ATOM_ARG_WS: 489 idx = U8(*ptr); 490 (*ptr)++; 491 DEBUG("WS[0x%02X]", idx); 492 switch (idx) { 493 case ATOM_WS_QUOTIENT: 494 gctx->divmul[0] = val; 495 break; 496 case ATOM_WS_REMAINDER: 497 gctx->divmul[1] = val; 498 break; 499 case ATOM_WS_DATAPTR: 500 gctx->data_block = val; 501 break; 502 case ATOM_WS_SHIFT: 503 gctx->shift = val; 504 break; 505 case ATOM_WS_OR_MASK: 506 case ATOM_WS_AND_MASK: 507 break; 508 case ATOM_WS_FB_WINDOW: 509 gctx->fb_base = val; 510 break; 511 case ATOM_WS_ATTRIBUTES: 512 gctx->io_attr = val; 513 break; 514 case ATOM_WS_REGPTR: 515 gctx->reg_block = val; 516 break; 517 default: 518 ctx->ws[idx] = val; 519 } 520 break; 521 case ATOM_ARG_FB: 522 idx = U8(*ptr); 523 (*ptr)++; 524 gctx->scratch[((gctx->fb_base + idx) / 4)] = val; 525 DEBUG("FB[0x%02X]", idx); 526 break; 527 case ATOM_ARG_PLL: 528 idx = U8(*ptr); 529 (*ptr)++; 530 DEBUG("PLL[0x%02X]", idx); 531 gctx->card->pll_write(gctx->card, idx, val); 532 break; 533 case ATOM_ARG_MC: 534 idx = U8(*ptr); 535 (*ptr)++; 536 DEBUG("MC[0x%02X]", idx); 537 gctx->card->mc_write(gctx->card, idx, val); 538 return; 539 } 540 switch (align) { 541 case ATOM_SRC_DWORD: 542 DEBUG(".[31:0] <- 0x%08X\n", old_val); 543 break; 544 case ATOM_SRC_WORD0: 545 DEBUG(".[15:0] <- 0x%04X\n", old_val); 546 break; 547 case ATOM_SRC_WORD8: 548 DEBUG(".[23:8] <- 0x%04X\n", old_val); 549 break; 550 case ATOM_SRC_WORD16: 551 DEBUG(".[31:16] <- 0x%04X\n", old_val); 552 break; 553 case ATOM_SRC_BYTE0: 554 DEBUG(".[7:0] <- 0x%02X\n", old_val); 555 break; 556 case ATOM_SRC_BYTE8: 557 DEBUG(".[15:8] <- 0x%02X\n", old_val); 558 break; 559 case ATOM_SRC_BYTE16: 560 DEBUG(".[23:16] <- 0x%02X\n", old_val); 561 break; 562 case ATOM_SRC_BYTE24: 563 DEBUG(".[31:24] <- 0x%02X\n", old_val); 564 break; 565 } 566} 567 568static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg) 569{ 570 uint8_t attr = U8((*ptr)++); 571 uint32_t dst, src, saved; 572 int dptr = *ptr; 573 SDEBUG(" dst: "); 574 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 575 SDEBUG(" src: "); 576 src = atom_get_src(ctx, attr, ptr); 577 dst += src; 578 SDEBUG(" dst: "); 579 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 580} 581 582static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg) 583{ 584 uint8_t attr = U8((*ptr)++); 585 uint32_t dst, src, saved; 586 int dptr = *ptr; 587 SDEBUG(" dst: "); 588 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 589 SDEBUG(" src: "); 590 src = atom_get_src(ctx, attr, ptr); 591 dst &= src; 592 SDEBUG(" dst: "); 593 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 594} 595 596static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg) 597{ 598 printk("ATOM BIOS beeped!\n"); 599} 600 601static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg) 602{ 603 int idx = U8((*ptr)++); 604 if (idx < ATOM_TABLE_NAMES_CNT) 605 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]); 606 else 607 SDEBUG(" table: %d\n", idx); 608 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx)) 609 atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift); 610} 611 612static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg) 613{ 614 uint8_t attr = U8((*ptr)++); 615 uint32_t saved; 616 int dptr = *ptr; 617 attr &= 0x38; 618 attr |= atom_def_dst[attr >> 3] << 6; 619 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 620 SDEBUG(" dst: "); 621 atom_put_dst(ctx, arg, attr, &dptr, 0, saved); 622} 623 624static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg) 625{ 626 uint8_t attr = U8((*ptr)++); 627 uint32_t dst, src; 628 SDEBUG(" src1: "); 629 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 630 SDEBUG(" src2: "); 631 src = atom_get_src(ctx, attr, ptr); 632 ctx->ctx->cs_equal = (dst == src); 633 ctx->ctx->cs_above = (dst > src); 634 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE", 635 ctx->ctx->cs_above ? "GT" : "LE"); 636} 637 638static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg) 639{ 640 uint8_t count = U8((*ptr)++); 641 SDEBUG(" count: %d\n", count); 642 if (arg == ATOM_UNIT_MICROSEC) 643 schedule_timeout_uninterruptible(usecs_to_jiffies(count)); 644 else 645 schedule_timeout_uninterruptible(msecs_to_jiffies(count)); 646} 647 648static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg) 649{ 650 uint8_t attr = U8((*ptr)++); 651 uint32_t dst, src; 652 SDEBUG(" src1: "); 653 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 654 SDEBUG(" src2: "); 655 src = atom_get_src(ctx, attr, ptr); 656 if (src != 0) { 657 ctx->ctx->divmul[0] = dst / src; 658 ctx->ctx->divmul[1] = dst % src; 659 } else { 660 ctx->ctx->divmul[0] = 0; 661 ctx->ctx->divmul[1] = 0; 662 } 663} 664 665static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg) 666{ 667 /* functionally, a nop */ 668} 669 670static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg) 671{ 672 int execute = 0, target = U16(*ptr); 673 (*ptr) += 2; 674 switch (arg) { 675 case ATOM_COND_ABOVE: 676 execute = ctx->ctx->cs_above; 677 break; 678 case ATOM_COND_ABOVEOREQUAL: 679 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal; 680 break; 681 case ATOM_COND_ALWAYS: 682 execute = 1; 683 break; 684 case ATOM_COND_BELOW: 685 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal); 686 break; 687 case ATOM_COND_BELOWOREQUAL: 688 execute = !ctx->ctx->cs_above; 689 break; 690 case ATOM_COND_EQUAL: 691 execute = ctx->ctx->cs_equal; 692 break; 693 case ATOM_COND_NOTEQUAL: 694 execute = !ctx->ctx->cs_equal; 695 break; 696 } 697 if (arg != ATOM_COND_ALWAYS) 698 SDEBUG(" taken: %s\n", execute ? "yes" : "no"); 699 SDEBUG(" target: 0x%04X\n", target); 700 if (execute) 701 *ptr = ctx->start + target; 702} 703 704static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg) 705{ 706 uint8_t attr = U8((*ptr)++); 707 uint32_t dst, src1, src2, saved; 708 int dptr = *ptr; 709 SDEBUG(" dst: "); 710 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 711 SDEBUG(" src1: "); 712 src1 = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr); 713 SDEBUG(" src2: "); 714 src2 = atom_get_src(ctx, attr, ptr); 715 dst &= src1; 716 dst |= src2; 717 SDEBUG(" dst: "); 718 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 719} 720 721static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg) 722{ 723 uint8_t attr = U8((*ptr)++); 724 uint32_t src, saved; 725 int dptr = *ptr; 726 if (((attr >> 3) & 7) != ATOM_SRC_DWORD) 727 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 728 else { 729 atom_skip_dst(ctx, arg, attr, ptr); 730 saved = 0xCDCDCDCD; 731 } 732 SDEBUG(" src: "); 733 src = atom_get_src(ctx, attr, ptr); 734 SDEBUG(" dst: "); 735 atom_put_dst(ctx, arg, attr, &dptr, src, saved); 736} 737 738static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg) 739{ 740 uint8_t attr = U8((*ptr)++); 741 uint32_t dst, src; 742 SDEBUG(" src1: "); 743 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 744 SDEBUG(" src2: "); 745 src = atom_get_src(ctx, attr, ptr); 746 ctx->ctx->divmul[0] = dst * src; 747} 748 749static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg) 750{ 751 /* nothing */ 752} 753 754static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg) 755{ 756 uint8_t attr = U8((*ptr)++); 757 uint32_t dst, src, saved; 758 int dptr = *ptr; 759 SDEBUG(" dst: "); 760 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 761 SDEBUG(" src: "); 762 src = atom_get_src(ctx, attr, ptr); 763 dst |= src; 764 SDEBUG(" dst: "); 765 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 766} 767 768static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg) 769{ 770 uint8_t val = U8((*ptr)++); 771 SDEBUG("POST card output: 0x%02X\n", val); 772} 773 774static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg) 775{ 776 printk(KERN_INFO "unimplemented!\n"); 777} 778 779static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg) 780{ 781 printk(KERN_INFO "unimplemented!\n"); 782} 783 784static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg) 785{ 786 printk(KERN_INFO "unimplemented!\n"); 787} 788 789static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg) 790{ 791 int idx = U8(*ptr); 792 (*ptr)++; 793 SDEBUG(" block: %d\n", idx); 794 if (!idx) 795 ctx->ctx->data_block = 0; 796 else if (idx == 255) 797 ctx->ctx->data_block = ctx->start; 798 else 799 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx); 800 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block); 801} 802 803static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg) 804{ 805 uint8_t attr = U8((*ptr)++); 806 SDEBUG(" fb_base: "); 807 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr); 808} 809 810static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg) 811{ 812 int port; 813 switch (arg) { 814 case ATOM_PORT_ATI: 815 port = U16(*ptr); 816 if (port < ATOM_IO_NAMES_CNT) 817 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]); 818 else 819 SDEBUG(" port: %d\n", port); 820 if (!port) 821 ctx->ctx->io_mode = ATOM_IO_MM; 822 else 823 ctx->ctx->io_mode = ATOM_IO_IIO | port; 824 (*ptr) += 2; 825 break; 826 case ATOM_PORT_PCI: 827 ctx->ctx->io_mode = ATOM_IO_PCI; 828 (*ptr)++; 829 break; 830 case ATOM_PORT_SYSIO: 831 ctx->ctx->io_mode = ATOM_IO_SYSIO; 832 (*ptr)++; 833 break; 834 } 835} 836 837static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg) 838{ 839 ctx->ctx->reg_block = U16(*ptr); 840 (*ptr) += 2; 841 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block); 842} 843 844static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg) 845{ 846 uint8_t attr = U8((*ptr)++), shift; 847 uint32_t saved, dst; 848 int dptr = *ptr; 849 attr &= 0x38; 850 attr |= atom_def_dst[attr >> 3] << 6; 851 SDEBUG(" dst: "); 852 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 853 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr); 854 SDEBUG(" shift: %d\n", shift); 855 dst <<= shift; 856 SDEBUG(" dst: "); 857 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 858} 859 860static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg) 861{ 862 uint8_t attr = U8((*ptr)++), shift; 863 uint32_t saved, dst; 864 int dptr = *ptr; 865 attr &= 0x38; 866 attr |= atom_def_dst[attr >> 3] << 6; 867 SDEBUG(" dst: "); 868 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 869 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr); 870 SDEBUG(" shift: %d\n", shift); 871 dst >>= shift; 872 SDEBUG(" dst: "); 873 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 874} 875 876static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg) 877{ 878 uint8_t attr = U8((*ptr)++), shift; 879 uint32_t saved, dst; 880 int dptr = *ptr; 881 SDEBUG(" dst: "); 882 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 883 shift = atom_get_src(ctx, attr, ptr); 884 SDEBUG(" shift: %d\n", shift); 885 dst <<= shift; 886 SDEBUG(" dst: "); 887 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 888} 889 890static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg) 891{ 892 uint8_t attr = U8((*ptr)++), shift; 893 uint32_t saved, dst; 894 int dptr = *ptr; 895 SDEBUG(" dst: "); 896 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 897 shift = atom_get_src(ctx, attr, ptr); 898 SDEBUG(" shift: %d\n", shift); 899 dst >>= shift; 900 SDEBUG(" dst: "); 901 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 902} 903 904static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg) 905{ 906 uint8_t attr = U8((*ptr)++); 907 uint32_t dst, src, saved; 908 int dptr = *ptr; 909 SDEBUG(" dst: "); 910 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 911 SDEBUG(" src: "); 912 src = atom_get_src(ctx, attr, ptr); 913 dst -= src; 914 SDEBUG(" dst: "); 915 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 916} 917 918static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg) 919{ 920 uint8_t attr = U8((*ptr)++); 921 uint32_t src, val, target; 922 SDEBUG(" switch: "); 923 src = atom_get_src(ctx, attr, ptr); 924 while (U16(*ptr) != ATOM_CASE_END) 925 if (U8(*ptr) == ATOM_CASE_MAGIC) { 926 (*ptr)++; 927 SDEBUG(" case: "); 928 val = 929 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM, 930 ptr); 931 target = U16(*ptr); 932 if (val == src) { 933 SDEBUG(" target: %04X\n", target); 934 *ptr = ctx->start + target; 935 return; 936 } 937 (*ptr) += 2; 938 } else { 939 printk(KERN_INFO "Bad case.\n"); 940 return; 941 } 942 (*ptr) += 2; 943} 944 945static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg) 946{ 947 uint8_t attr = U8((*ptr)++); 948 uint32_t dst, src; 949 SDEBUG(" src1: "); 950 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 951 SDEBUG(" src2: "); 952 src = atom_get_src(ctx, attr, ptr); 953 ctx->ctx->cs_equal = ((dst & src) == 0); 954 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE"); 955} 956 957static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg) 958{ 959 uint8_t attr = U8((*ptr)++); 960 uint32_t dst, src, saved; 961 int dptr = *ptr; 962 SDEBUG(" dst: "); 963 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 964 SDEBUG(" src: "); 965 src = atom_get_src(ctx, attr, ptr); 966 dst ^= src; 967 SDEBUG(" dst: "); 968 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 969} 970 971static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg) 972{ 973 printk(KERN_INFO "unimplemented!\n"); 974} 975 976static struct { 977 void (*func) (atom_exec_context *, int *, int); 978 int arg; 979} opcode_table[ATOM_OP_CNT] = { 980 { 981 NULL, 0}, { 982 atom_op_move, ATOM_ARG_REG}, { 983 atom_op_move, ATOM_ARG_PS}, { 984 atom_op_move, ATOM_ARG_WS}, { 985 atom_op_move, ATOM_ARG_FB}, { 986 atom_op_move, ATOM_ARG_PLL}, { 987 atom_op_move, ATOM_ARG_MC}, { 988 atom_op_and, ATOM_ARG_REG}, { 989 atom_op_and, ATOM_ARG_PS}, { 990 atom_op_and, ATOM_ARG_WS}, { 991 atom_op_and, ATOM_ARG_FB}, { 992 atom_op_and, ATOM_ARG_PLL}, { 993 atom_op_and, ATOM_ARG_MC}, { 994 atom_op_or, ATOM_ARG_REG}, { 995 atom_op_or, ATOM_ARG_PS}, { 996 atom_op_or, ATOM_ARG_WS}, { 997 atom_op_or, ATOM_ARG_FB}, { 998 atom_op_or, ATOM_ARG_PLL}, { 999 atom_op_or, ATOM_ARG_MC}, { 1000 atom_op_shift_left, ATOM_ARG_REG}, { 1001 atom_op_shift_left, ATOM_ARG_PS}, { 1002 atom_op_shift_left, ATOM_ARG_WS}, { 1003 atom_op_shift_left, ATOM_ARG_FB}, { 1004 atom_op_shift_left, ATOM_ARG_PLL}, { 1005 atom_op_shift_left, ATOM_ARG_MC}, { 1006 atom_op_shift_right, ATOM_ARG_REG}, { 1007 atom_op_shift_right, ATOM_ARG_PS}, { 1008 atom_op_shift_right, ATOM_ARG_WS}, { 1009 atom_op_shift_right, ATOM_ARG_FB}, { 1010 atom_op_shift_right, ATOM_ARG_PLL}, { 1011 atom_op_shift_right, ATOM_ARG_MC}, { 1012 atom_op_mul, ATOM_ARG_REG}, { 1013 atom_op_mul, ATOM_ARG_PS}, { 1014 atom_op_mul, ATOM_ARG_WS}, { 1015 atom_op_mul, ATOM_ARG_FB}, { 1016 atom_op_mul, ATOM_ARG_PLL}, { 1017 atom_op_mul, ATOM_ARG_MC}, { 1018 atom_op_div, ATOM_ARG_REG}, { 1019 atom_op_div, ATOM_ARG_PS}, { 1020 atom_op_div, ATOM_ARG_WS}, { 1021 atom_op_div, ATOM_ARG_FB}, { 1022 atom_op_div, ATOM_ARG_PLL}, { 1023 atom_op_div, ATOM_ARG_MC}, { 1024 atom_op_add, ATOM_ARG_REG}, { 1025 atom_op_add, ATOM_ARG_PS}, { 1026 atom_op_add, ATOM_ARG_WS}, { 1027 atom_op_add, ATOM_ARG_FB}, { 1028 atom_op_add, ATOM_ARG_PLL}, { 1029 atom_op_add, ATOM_ARG_MC}, { 1030 atom_op_sub, ATOM_ARG_REG}, { 1031 atom_op_sub, ATOM_ARG_PS}, { 1032 atom_op_sub, ATOM_ARG_WS}, { 1033 atom_op_sub, ATOM_ARG_FB}, { 1034 atom_op_sub, ATOM_ARG_PLL}, { 1035 atom_op_sub, ATOM_ARG_MC}, { 1036 atom_op_setport, ATOM_PORT_ATI}, { 1037 atom_op_setport, ATOM_PORT_PCI}, { 1038 atom_op_setport, ATOM_PORT_SYSIO}, { 1039 atom_op_setregblock, 0}, { 1040 atom_op_setfbbase, 0}, { 1041 atom_op_compare, ATOM_ARG_REG}, { 1042 atom_op_compare, ATOM_ARG_PS}, { 1043 atom_op_compare, ATOM_ARG_WS}, { 1044 atom_op_compare, ATOM_ARG_FB}, { 1045 atom_op_compare, ATOM_ARG_PLL}, { 1046 atom_op_compare, ATOM_ARG_MC}, { 1047 atom_op_switch, 0}, { 1048 atom_op_jump, ATOM_COND_ALWAYS}, { 1049 atom_op_jump, ATOM_COND_EQUAL}, { 1050 atom_op_jump, ATOM_COND_BELOW}, { 1051 atom_op_jump, ATOM_COND_ABOVE}, { 1052 atom_op_jump, ATOM_COND_BELOWOREQUAL}, { 1053 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, { 1054 atom_op_jump, ATOM_COND_NOTEQUAL}, { 1055 atom_op_test, ATOM_ARG_REG}, { 1056 atom_op_test, ATOM_ARG_PS}, { 1057 atom_op_test, ATOM_ARG_WS}, { 1058 atom_op_test, ATOM_ARG_FB}, { 1059 atom_op_test, ATOM_ARG_PLL}, { 1060 atom_op_test, ATOM_ARG_MC}, { 1061 atom_op_delay, ATOM_UNIT_MILLISEC}, { 1062 atom_op_delay, ATOM_UNIT_MICROSEC}, { 1063 atom_op_calltable, 0}, { 1064 atom_op_repeat, 0}, { 1065 atom_op_clear, ATOM_ARG_REG}, { 1066 atom_op_clear, ATOM_ARG_PS}, { 1067 atom_op_clear, ATOM_ARG_WS}, { 1068 atom_op_clear, ATOM_ARG_FB}, { 1069 atom_op_clear, ATOM_ARG_PLL}, { 1070 atom_op_clear, ATOM_ARG_MC}, { 1071 atom_op_nop, 0}, { 1072 atom_op_eot, 0}, { 1073 atom_op_mask, ATOM_ARG_REG}, { 1074 atom_op_mask, ATOM_ARG_PS}, { 1075 atom_op_mask, ATOM_ARG_WS}, { 1076 atom_op_mask, ATOM_ARG_FB}, { 1077 atom_op_mask, ATOM_ARG_PLL}, { 1078 atom_op_mask, ATOM_ARG_MC}, { 1079 atom_op_postcard, 0}, { 1080 atom_op_beep, 0}, { 1081 atom_op_savereg, 0}, { 1082 atom_op_restorereg, 0}, { 1083 atom_op_setdatablock, 0}, { 1084 atom_op_xor, ATOM_ARG_REG}, { 1085 atom_op_xor, ATOM_ARG_PS}, { 1086 atom_op_xor, ATOM_ARG_WS}, { 1087 atom_op_xor, ATOM_ARG_FB}, { 1088 atom_op_xor, ATOM_ARG_PLL}, { 1089 atom_op_xor, ATOM_ARG_MC}, { 1090 atom_op_shl, ATOM_ARG_REG}, { 1091 atom_op_shl, ATOM_ARG_PS}, { 1092 atom_op_shl, ATOM_ARG_WS}, { 1093 atom_op_shl, ATOM_ARG_FB}, { 1094 atom_op_shl, ATOM_ARG_PLL}, { 1095 atom_op_shl, ATOM_ARG_MC}, { 1096 atom_op_shr, ATOM_ARG_REG}, { 1097 atom_op_shr, ATOM_ARG_PS}, { 1098 atom_op_shr, ATOM_ARG_WS}, { 1099 atom_op_shr, ATOM_ARG_FB}, { 1100 atom_op_shr, ATOM_ARG_PLL}, { 1101 atom_op_shr, ATOM_ARG_MC}, { 1102atom_op_debug, 0},}; 1103 1104static void atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params) 1105{ 1106 int base = CU16(ctx->cmd_table + 4 + 2 * index); 1107 int len, ws, ps, ptr; 1108 unsigned char op; 1109 atom_exec_context ectx; 1110 1111 if (!base) 1112 return; 1113 1114 len = CU16(base + ATOM_CT_SIZE_PTR); 1115 ws = CU8(base + ATOM_CT_WS_PTR); 1116 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK; 1117 ptr = base + ATOM_CT_CODE_PTR; 1118 1119 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps); 1120 1121 ectx.ctx = ctx; 1122 ectx.ps_shift = ps / 4; 1123 ectx.start = base; 1124 ectx.ps = params; 1125 if (ws) 1126 ectx.ws = kzalloc(4 * ws, GFP_KERNEL); 1127 else 1128 ectx.ws = NULL; 1129 1130 debug_depth++; 1131 while (1) { 1132 op = CU8(ptr++); 1133 if (op < ATOM_OP_NAMES_CNT) 1134 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1); 1135 else 1136 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1); 1137 1138 if (op < ATOM_OP_CNT && op > 0) 1139 opcode_table[op].func(&ectx, &ptr, 1140 opcode_table[op].arg); 1141 else 1142 break; 1143 1144 if (op == ATOM_OP_EOT) 1145 break; 1146 } 1147 debug_depth--; 1148 SDEBUG("<<\n"); 1149 1150 if (ws) 1151 kfree(ectx.ws); 1152} 1153 1154void atom_execute_table(struct atom_context *ctx, int index, uint32_t * params) 1155{ 1156 mutex_lock(&ctx->mutex); 1157 /* reset reg block */ 1158 ctx->reg_block = 0; 1159 /* reset fb window */ 1160 ctx->fb_base = 0; 1161 /* reset io mode */ 1162 ctx->io_mode = ATOM_IO_MM; 1163 atom_execute_table_locked(ctx, index, params); 1164 mutex_unlock(&ctx->mutex); 1165} 1166 1167static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 }; 1168 1169static void atom_index_iio(struct atom_context *ctx, int base) 1170{ 1171 ctx->iio = kzalloc(2 * 256, GFP_KERNEL); 1172 while (CU8(base) == ATOM_IIO_START) { 1173 ctx->iio[CU8(base + 1)] = base + 2; 1174 base += 2; 1175 while (CU8(base) != ATOM_IIO_END) 1176 base += atom_iio_len[CU8(base)]; 1177 base += 3; 1178 } 1179} 1180 1181struct atom_context *atom_parse(struct card_info *card, void *bios) 1182{ 1183 int base; 1184 struct atom_context *ctx = 1185 kzalloc(sizeof(struct atom_context), GFP_KERNEL); 1186 char *str; 1187 char name[512]; 1188 int i; 1189 1190 ctx->card = card; 1191 ctx->bios = bios; 1192 1193 if (CU16(0) != ATOM_BIOS_MAGIC) { 1194 printk(KERN_INFO "Invalid BIOS magic.\n"); 1195 kfree(ctx); 1196 return NULL; 1197 } 1198 if (strncmp 1199 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC, 1200 strlen(ATOM_ATI_MAGIC))) { 1201 printk(KERN_INFO "Invalid ATI magic.\n"); 1202 kfree(ctx); 1203 return NULL; 1204 } 1205 1206 base = CU16(ATOM_ROM_TABLE_PTR); 1207 if (strncmp 1208 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC, 1209 strlen(ATOM_ROM_MAGIC))) { 1210 printk(KERN_INFO "Invalid ATOM magic.\n"); 1211 kfree(ctx); 1212 return NULL; 1213 } 1214 1215 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR); 1216 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR); 1217 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4); 1218 1219 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR)); 1220 while (*str && ((*str == '\n') || (*str == '\r'))) 1221 str++; 1222 /* name string isn't always 0 terminated */ 1223 for (i = 0; i < 511; i++) { 1224 name[i] = str[i]; 1225 if (name[i] < '.' || name[i] > 'z') { 1226 name[i] = 0; 1227 break; 1228 } 1229 } 1230 printk(KERN_INFO "ATOM BIOS: %s\n", name); 1231 1232 return ctx; 1233} 1234 1235int atom_asic_init(struct atom_context *ctx) 1236{ 1237 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR); 1238 uint32_t ps[16]; 1239 memset(ps, 0, 64); 1240 1241 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR)); 1242 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR)); 1243 if (!ps[0] || !ps[1]) 1244 return 1; 1245 1246 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT)) 1247 return 1; 1248 atom_execute_table(ctx, ATOM_CMD_INIT, ps); 1249 1250 return 0; 1251} 1252 1253void atom_destroy(struct atom_context *ctx) 1254{ 1255 if (ctx->iio) 1256 kfree(ctx->iio); 1257 kfree(ctx); 1258} 1259 1260void atom_parse_data_header(struct atom_context *ctx, int index, 1261 uint16_t * size, uint8_t * frev, uint8_t * crev, 1262 uint16_t * data_start) 1263{ 1264 int offset = index * 2 + 4; 1265 int idx = CU16(ctx->data_table + offset); 1266 1267 if (size) 1268 *size = CU16(idx); 1269 if (frev) 1270 *frev = CU8(idx + 2); 1271 if (crev) 1272 *crev = CU8(idx + 3); 1273 *data_start = idx; 1274 return; 1275} 1276 1277void atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev, 1278 uint8_t * crev) 1279{ 1280 int offset = index * 2 + 4; 1281 int idx = CU16(ctx->cmd_table + offset); 1282 1283 if (frev) 1284 *frev = CU8(idx + 2); 1285 if (crev) 1286 *crev = CU8(idx + 3); 1287 return; 1288} 1289 1290int atom_allocate_fb_scratch(struct atom_context *ctx) 1291{ 1292 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware); 1293 uint16_t data_offset; 1294 int usage_bytes; 1295 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage; 1296 1297 atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset); 1298 1299 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset); 1300 1301 DRM_DEBUG("atom firmware requested %08x %dkb\n", 1302 firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware, 1303 firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb); 1304 1305 usage_bytes = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb * 1024; 1306 if (usage_bytes == 0) 1307 usage_bytes = 20 * 1024; 1308 /* allocate some scratch memory */ 1309 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL); 1310 if (!ctx->scratch) 1311 return -ENOMEM; 1312 return 0; 1313} 1314