1/* 2 * Copyright 2008 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Author: Stanislaw Skowronek 23 */ 24 25#include <linux/module.h> 26#include <linux/sched.h> 27#include <linux/slab.h> 28#include <asm/unaligned.h> 29 30#define ATOM_DEBUG 31 32#include "atom.h" 33#include "atom-names.h" 34#include "atom-bits.h" 35#include "radeon.h" 36 37#define ATOM_COND_ABOVE 0 38#define ATOM_COND_ABOVEOREQUAL 1 39#define ATOM_COND_ALWAYS 2 40#define ATOM_COND_BELOW 3 41#define ATOM_COND_BELOWOREQUAL 4 42#define ATOM_COND_EQUAL 5 43#define ATOM_COND_NOTEQUAL 6 44 45#define ATOM_PORT_ATI 0 46#define ATOM_PORT_PCI 1 47#define ATOM_PORT_SYSIO 2 48 49#define ATOM_UNIT_MICROSEC 0 50#define ATOM_UNIT_MILLISEC 1 51 52#define PLL_INDEX 2 53#define PLL_DATA 3 54 55typedef struct { 56 struct atom_context *ctx; 57 uint32_t *ps, *ws; 58 int ps_shift; 59 uint16_t start; 60 unsigned last_jump; 61 unsigned long last_jump_jiffies; 62 bool abort; 63} atom_exec_context; 64 65int atom_debug = 0; 66static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params); 67int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params); 68 69static uint32_t atom_arg_mask[8] = 70 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000, 710xFF000000 }; 72static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 }; 73 74static int atom_dst_to_src[8][4] = { 75 /* translate destination alignment field to the source alignment encoding */ 76 {0, 0, 0, 0}, 77 {1, 2, 3, 0}, 78 {1, 2, 3, 0}, 79 {1, 2, 3, 0}, 80 {4, 5, 6, 7}, 81 {4, 5, 6, 7}, 82 {4, 5, 6, 7}, 83 {4, 5, 6, 7}, 84}; 85static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 }; 86 87static int debug_depth = 0; 88#ifdef ATOM_DEBUG 89static void debug_print_spaces(int n) 90{ 91 while (n--) 92 printk(" "); 93} 94 95#define DEBUG(...) do if (atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0) 96#define SDEBUG(...) do if (atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0) 97#else 98#define DEBUG(...) do { } while (0) 99#define SDEBUG(...) do { } while (0) 100#endif 101 102static uint32_t atom_iio_execute(struct atom_context *ctx, int base, 103 uint32_t index, uint32_t data) 104{ 105 struct radeon_device *rdev = ctx->card->dev->dev_private; 106 uint32_t temp = 0xCDCDCDCD; 107 108 while (1) 109 switch (CU8(base)) { 110 case ATOM_IIO_NOP: 111 base++; 112 break; 113 case ATOM_IIO_READ: 114 temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1)); 115 base += 3; 116 break; 117 case ATOM_IIO_WRITE: 118 if (rdev->family == CHIP_RV515) 119 (void)ctx->card->ioreg_read(ctx->card, CU16(base + 1)); 120 ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp); 121 base += 3; 122 break; 123 case ATOM_IIO_CLEAR: 124 temp &= 125 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 126 CU8(base + 2)); 127 base += 3; 128 break; 129 case ATOM_IIO_SET: 130 temp |= 131 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base + 132 2); 133 base += 3; 134 break; 135 case ATOM_IIO_MOVE_INDEX: 136 temp &= 137 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 138 CU8(base + 3)); 139 temp |= 140 ((index >> CU8(base + 2)) & 141 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 142 3); 143 base += 4; 144 break; 145 case ATOM_IIO_MOVE_DATA: 146 temp &= 147 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 148 CU8(base + 3)); 149 temp |= 150 ((data >> CU8(base + 2)) & 151 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 152 3); 153 base += 4; 154 break; 155 case ATOM_IIO_MOVE_ATTR: 156 temp &= 157 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 158 CU8(base + 3)); 159 temp |= 160 ((ctx-> 161 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 - 162 CU8 163 (base 164 + 165 1)))) 166 << CU8(base + 3); 167 base += 4; 168 break; 169 case ATOM_IIO_END: 170 return temp; 171 default: 172 printk(KERN_INFO "Unknown IIO opcode.\n"); 173 return 0; 174 } 175} 176 177static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr, 178 int *ptr, uint32_t *saved, int print) 179{ 180 uint32_t idx, val = 0xCDCDCDCD, align, arg; 181 struct atom_context *gctx = ctx->ctx; 182 arg = attr & 7; 183 align = (attr >> 3) & 7; 184 switch (arg) { 185 case ATOM_ARG_REG: 186 idx = U16(*ptr); 187 (*ptr) += 2; 188 if (print) 189 DEBUG("REG[0x%04X]", idx); 190 idx += gctx->reg_block; 191 switch (gctx->io_mode) { 192 case ATOM_IO_MM: 193 val = gctx->card->reg_read(gctx->card, idx); 194 break; 195 case ATOM_IO_PCI: 196 printk(KERN_INFO 197 "PCI registers are not implemented.\n"); 198 return 0; 199 case ATOM_IO_SYSIO: 200 printk(KERN_INFO 201 "SYSIO registers are not implemented.\n"); 202 return 0; 203 default: 204 if (!(gctx->io_mode & 0x80)) { 205 printk(KERN_INFO "Bad IO mode.\n"); 206 return 0; 207 } 208 if (!gctx->iio[gctx->io_mode & 0x7F]) { 209 printk(KERN_INFO 210 "Undefined indirect IO read method %d.\n", 211 gctx->io_mode & 0x7F); 212 return 0; 213 } 214 val = 215 atom_iio_execute(gctx, 216 gctx->iio[gctx->io_mode & 0x7F], 217 idx, 0); 218 } 219 break; 220 case ATOM_ARG_PS: 221 idx = U8(*ptr); 222 (*ptr)++; 223 /* get_unaligned_le32 avoids unaligned accesses from atombios 224 * tables, noticed on a DEC Alpha. */ 225 val = get_unaligned_le32((u32 *)&ctx->ps[idx]); 226 if (print) 227 DEBUG("PS[0x%02X,0x%04X]", idx, val); 228 break; 229 case ATOM_ARG_WS: 230 idx = U8(*ptr); 231 (*ptr)++; 232 if (print) 233 DEBUG("WS[0x%02X]", idx); 234 switch (idx) { 235 case ATOM_WS_QUOTIENT: 236 val = gctx->divmul[0]; 237 break; 238 case ATOM_WS_REMAINDER: 239 val = gctx->divmul[1]; 240 break; 241 case ATOM_WS_DATAPTR: 242 val = gctx->data_block; 243 break; 244 case ATOM_WS_SHIFT: 245 val = gctx->shift; 246 break; 247 case ATOM_WS_OR_MASK: 248 val = 1 << gctx->shift; 249 break; 250 case ATOM_WS_AND_MASK: 251 val = ~(1 << gctx->shift); 252 break; 253 case ATOM_WS_FB_WINDOW: 254 val = gctx->fb_base; 255 break; 256 case ATOM_WS_ATTRIBUTES: 257 val = gctx->io_attr; 258 break; 259 case ATOM_WS_REGPTR: 260 val = gctx->reg_block; 261 break; 262 default: 263 val = ctx->ws[idx]; 264 } 265 break; 266 case ATOM_ARG_ID: 267 idx = U16(*ptr); 268 (*ptr) += 2; 269 if (print) { 270 if (gctx->data_block) 271 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block); 272 else 273 DEBUG("ID[0x%04X]", idx); 274 } 275 val = U32(idx + gctx->data_block); 276 break; 277 case ATOM_ARG_FB: 278 idx = U8(*ptr); 279 (*ptr)++; 280 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) { 281 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n", 282 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes); 283 val = 0; 284 } else 285 val = gctx->scratch[(gctx->fb_base / 4) + idx]; 286 if (print) 287 DEBUG("FB[0x%02X]", idx); 288 break; 289 case ATOM_ARG_IMM: 290 switch (align) { 291 case ATOM_SRC_DWORD: 292 val = U32(*ptr); 293 (*ptr) += 4; 294 if (print) 295 DEBUG("IMM 0x%08X\n", val); 296 return val; 297 case ATOM_SRC_WORD0: 298 case ATOM_SRC_WORD8: 299 case ATOM_SRC_WORD16: 300 val = U16(*ptr); 301 (*ptr) += 2; 302 if (print) 303 DEBUG("IMM 0x%04X\n", val); 304 return val; 305 case ATOM_SRC_BYTE0: 306 case ATOM_SRC_BYTE8: 307 case ATOM_SRC_BYTE16: 308 case ATOM_SRC_BYTE24: 309 val = U8(*ptr); 310 (*ptr)++; 311 if (print) 312 DEBUG("IMM 0x%02X\n", val); 313 return val; 314 } 315 return 0; 316 case ATOM_ARG_PLL: 317 idx = U8(*ptr); 318 (*ptr)++; 319 if (print) 320 DEBUG("PLL[0x%02X]", idx); 321 val = gctx->card->pll_read(gctx->card, idx); 322 break; 323 case ATOM_ARG_MC: 324 idx = U8(*ptr); 325 (*ptr)++; 326 if (print) 327 DEBUG("MC[0x%02X]", idx); 328 val = gctx->card->mc_read(gctx->card, idx); 329 break; 330 } 331 if (saved) 332 *saved = val; 333 val &= atom_arg_mask[align]; 334 val >>= atom_arg_shift[align]; 335 if (print) 336 switch (align) { 337 case ATOM_SRC_DWORD: 338 DEBUG(".[31:0] -> 0x%08X\n", val); 339 break; 340 case ATOM_SRC_WORD0: 341 DEBUG(".[15:0] -> 0x%04X\n", val); 342 break; 343 case ATOM_SRC_WORD8: 344 DEBUG(".[23:8] -> 0x%04X\n", val); 345 break; 346 case ATOM_SRC_WORD16: 347 DEBUG(".[31:16] -> 0x%04X\n", val); 348 break; 349 case ATOM_SRC_BYTE0: 350 DEBUG(".[7:0] -> 0x%02X\n", val); 351 break; 352 case ATOM_SRC_BYTE8: 353 DEBUG(".[15:8] -> 0x%02X\n", val); 354 break; 355 case ATOM_SRC_BYTE16: 356 DEBUG(".[23:16] -> 0x%02X\n", val); 357 break; 358 case ATOM_SRC_BYTE24: 359 DEBUG(".[31:24] -> 0x%02X\n", val); 360 break; 361 } 362 return val; 363} 364 365static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr) 366{ 367 uint32_t align = (attr >> 3) & 7, arg = attr & 7; 368 switch (arg) { 369 case ATOM_ARG_REG: 370 case ATOM_ARG_ID: 371 (*ptr) += 2; 372 break; 373 case ATOM_ARG_PLL: 374 case ATOM_ARG_MC: 375 case ATOM_ARG_PS: 376 case ATOM_ARG_WS: 377 case ATOM_ARG_FB: 378 (*ptr)++; 379 break; 380 case ATOM_ARG_IMM: 381 switch (align) { 382 case ATOM_SRC_DWORD: 383 (*ptr) += 4; 384 return; 385 case ATOM_SRC_WORD0: 386 case ATOM_SRC_WORD8: 387 case ATOM_SRC_WORD16: 388 (*ptr) += 2; 389 return; 390 case ATOM_SRC_BYTE0: 391 case ATOM_SRC_BYTE8: 392 case ATOM_SRC_BYTE16: 393 case ATOM_SRC_BYTE24: 394 (*ptr)++; 395 return; 396 } 397 return; 398 } 399} 400 401static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr) 402{ 403 return atom_get_src_int(ctx, attr, ptr, NULL, 1); 404} 405 406static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr) 407{ 408 uint32_t val = 0xCDCDCDCD; 409 410 switch (align) { 411 case ATOM_SRC_DWORD: 412 val = U32(*ptr); 413 (*ptr) += 4; 414 break; 415 case ATOM_SRC_WORD0: 416 case ATOM_SRC_WORD8: 417 case ATOM_SRC_WORD16: 418 val = U16(*ptr); 419 (*ptr) += 2; 420 break; 421 case ATOM_SRC_BYTE0: 422 case ATOM_SRC_BYTE8: 423 case ATOM_SRC_BYTE16: 424 case ATOM_SRC_BYTE24: 425 val = U8(*ptr); 426 (*ptr)++; 427 break; 428 } 429 return val; 430} 431 432static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr, 433 int *ptr, uint32_t *saved, int print) 434{ 435 return atom_get_src_int(ctx, 436 arg | atom_dst_to_src[(attr >> 3) & 437 7][(attr >> 6) & 3] << 3, 438 ptr, saved, print); 439} 440 441static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr) 442{ 443 atom_skip_src_int(ctx, 444 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 445 3] << 3, ptr); 446} 447 448static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr, 449 int *ptr, uint32_t val, uint32_t saved) 450{ 451 uint32_t align = 452 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val = 453 val, idx; 454 struct atom_context *gctx = ctx->ctx; 455 old_val &= atom_arg_mask[align] >> atom_arg_shift[align]; 456 val <<= atom_arg_shift[align]; 457 val &= atom_arg_mask[align]; 458 saved &= ~atom_arg_mask[align]; 459 val |= saved; 460 switch (arg) { 461 case ATOM_ARG_REG: 462 idx = U16(*ptr); 463 (*ptr) += 2; 464 DEBUG("REG[0x%04X]", idx); 465 idx += gctx->reg_block; 466 switch (gctx->io_mode) { 467 case ATOM_IO_MM: 468 if (idx == 0) 469 gctx->card->reg_write(gctx->card, idx, 470 val << 2); 471 else 472 gctx->card->reg_write(gctx->card, idx, val); 473 break; 474 case ATOM_IO_PCI: 475 printk(KERN_INFO 476 "PCI registers are not implemented.\n"); 477 return; 478 case ATOM_IO_SYSIO: 479 printk(KERN_INFO 480 "SYSIO registers are not implemented.\n"); 481 return; 482 default: 483 if (!(gctx->io_mode & 0x80)) { 484 printk(KERN_INFO "Bad IO mode.\n"); 485 return; 486 } 487 if (!gctx->iio[gctx->io_mode & 0xFF]) { 488 printk(KERN_INFO 489 "Undefined indirect IO write method %d.\n", 490 gctx->io_mode & 0x7F); 491 return; 492 } 493 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF], 494 idx, val); 495 } 496 break; 497 case ATOM_ARG_PS: 498 idx = U8(*ptr); 499 (*ptr)++; 500 DEBUG("PS[0x%02X]", idx); 501 ctx->ps[idx] = cpu_to_le32(val); 502 break; 503 case ATOM_ARG_WS: 504 idx = U8(*ptr); 505 (*ptr)++; 506 DEBUG("WS[0x%02X]", idx); 507 switch (idx) { 508 case ATOM_WS_QUOTIENT: 509 gctx->divmul[0] = val; 510 break; 511 case ATOM_WS_REMAINDER: 512 gctx->divmul[1] = val; 513 break; 514 case ATOM_WS_DATAPTR: 515 gctx->data_block = val; 516 break; 517 case ATOM_WS_SHIFT: 518 gctx->shift = val; 519 break; 520 case ATOM_WS_OR_MASK: 521 case ATOM_WS_AND_MASK: 522 break; 523 case ATOM_WS_FB_WINDOW: 524 gctx->fb_base = val; 525 break; 526 case ATOM_WS_ATTRIBUTES: 527 gctx->io_attr = val; 528 break; 529 case ATOM_WS_REGPTR: 530 gctx->reg_block = val; 531 break; 532 default: 533 ctx->ws[idx] = val; 534 } 535 break; 536 case ATOM_ARG_FB: 537 idx = U8(*ptr); 538 (*ptr)++; 539 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) { 540 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n", 541 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes); 542 } else 543 gctx->scratch[(gctx->fb_base / 4) + idx] = val; 544 DEBUG("FB[0x%02X]", idx); 545 break; 546 case ATOM_ARG_PLL: 547 idx = U8(*ptr); 548 (*ptr)++; 549 DEBUG("PLL[0x%02X]", idx); 550 gctx->card->pll_write(gctx->card, idx, val); 551 break; 552 case ATOM_ARG_MC: 553 idx = U8(*ptr); 554 (*ptr)++; 555 DEBUG("MC[0x%02X]", idx); 556 gctx->card->mc_write(gctx->card, idx, val); 557 return; 558 } 559 switch (align) { 560 case ATOM_SRC_DWORD: 561 DEBUG(".[31:0] <- 0x%08X\n", old_val); 562 break; 563 case ATOM_SRC_WORD0: 564 DEBUG(".[15:0] <- 0x%04X\n", old_val); 565 break; 566 case ATOM_SRC_WORD8: 567 DEBUG(".[23:8] <- 0x%04X\n", old_val); 568 break; 569 case ATOM_SRC_WORD16: 570 DEBUG(".[31:16] <- 0x%04X\n", old_val); 571 break; 572 case ATOM_SRC_BYTE0: 573 DEBUG(".[7:0] <- 0x%02X\n", old_val); 574 break; 575 case ATOM_SRC_BYTE8: 576 DEBUG(".[15:8] <- 0x%02X\n", old_val); 577 break; 578 case ATOM_SRC_BYTE16: 579 DEBUG(".[23:16] <- 0x%02X\n", old_val); 580 break; 581 case ATOM_SRC_BYTE24: 582 DEBUG(".[31:24] <- 0x%02X\n", old_val); 583 break; 584 } 585} 586 587static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg) 588{ 589 uint8_t attr = U8((*ptr)++); 590 uint32_t dst, src, saved; 591 int dptr = *ptr; 592 SDEBUG(" dst: "); 593 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 594 SDEBUG(" src: "); 595 src = atom_get_src(ctx, attr, ptr); 596 dst += src; 597 SDEBUG(" dst: "); 598 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 599} 600 601static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg) 602{ 603 uint8_t attr = U8((*ptr)++); 604 uint32_t dst, src, saved; 605 int dptr = *ptr; 606 SDEBUG(" dst: "); 607 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 608 SDEBUG(" src: "); 609 src = atom_get_src(ctx, attr, ptr); 610 dst &= src; 611 SDEBUG(" dst: "); 612 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 613} 614 615static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg) 616{ 617 printk("ATOM BIOS beeped!\n"); 618} 619 620static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg) 621{ 622 int idx = U8((*ptr)++); 623 int r = 0; 624 625 if (idx < ATOM_TABLE_NAMES_CNT) 626 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]); 627 else 628 SDEBUG(" table: %d\n", idx); 629 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx)) 630 r = atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift); 631 if (r) { 632 ctx->abort = true; 633 } 634} 635 636static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg) 637{ 638 uint8_t attr = U8((*ptr)++); 639 uint32_t saved; 640 int dptr = *ptr; 641 attr &= 0x38; 642 attr |= atom_def_dst[attr >> 3] << 6; 643 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 644 SDEBUG(" dst: "); 645 atom_put_dst(ctx, arg, attr, &dptr, 0, saved); 646} 647 648static void atom_op_compare(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 ctx->ctx->cs_equal = (dst == src); 657 ctx->ctx->cs_above = (dst > src); 658 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE", 659 ctx->ctx->cs_above ? "GT" : "LE"); 660} 661 662static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg) 663{ 664 unsigned count = U8((*ptr)++); 665 SDEBUG(" count: %d\n", count); 666 if (arg == ATOM_UNIT_MICROSEC) 667 udelay(count); 668 else if (!drm_can_sleep()) 669 mdelay(count); 670 else 671 msleep(count); 672} 673 674static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg) 675{ 676 uint8_t attr = U8((*ptr)++); 677 uint32_t dst, src; 678 SDEBUG(" src1: "); 679 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 680 SDEBUG(" src2: "); 681 src = atom_get_src(ctx, attr, ptr); 682 if (src != 0) { 683 ctx->ctx->divmul[0] = dst / src; 684 ctx->ctx->divmul[1] = dst % src; 685 } else { 686 ctx->ctx->divmul[0] = 0; 687 ctx->ctx->divmul[1] = 0; 688 } 689} 690 691static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg) 692{ 693 /* functionally, a nop */ 694} 695 696static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg) 697{ 698 int execute = 0, target = U16(*ptr); 699 unsigned long cjiffies; 700 701 (*ptr) += 2; 702 switch (arg) { 703 case ATOM_COND_ABOVE: 704 execute = ctx->ctx->cs_above; 705 break; 706 case ATOM_COND_ABOVEOREQUAL: 707 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal; 708 break; 709 case ATOM_COND_ALWAYS: 710 execute = 1; 711 break; 712 case ATOM_COND_BELOW: 713 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal); 714 break; 715 case ATOM_COND_BELOWOREQUAL: 716 execute = !ctx->ctx->cs_above; 717 break; 718 case ATOM_COND_EQUAL: 719 execute = ctx->ctx->cs_equal; 720 break; 721 case ATOM_COND_NOTEQUAL: 722 execute = !ctx->ctx->cs_equal; 723 break; 724 } 725 if (arg != ATOM_COND_ALWAYS) 726 SDEBUG(" taken: %s\n", execute ? "yes" : "no"); 727 SDEBUG(" target: 0x%04X\n", target); 728 if (execute) { 729 if (ctx->last_jump == (ctx->start + target)) { 730 cjiffies = jiffies; 731 if (time_after(cjiffies, ctx->last_jump_jiffies)) { 732 cjiffies -= ctx->last_jump_jiffies; 733 if ((jiffies_to_msecs(cjiffies) > 5000)) { 734 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n"); 735 ctx->abort = true; 736 } 737 } else { 738 /* jiffies wrap around we will just wait a little longer */ 739 ctx->last_jump_jiffies = jiffies; 740 } 741 } else { 742 ctx->last_jump = ctx->start + target; 743 ctx->last_jump_jiffies = jiffies; 744 } 745 *ptr = ctx->start + target; 746 } 747} 748 749static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg) 750{ 751 uint8_t attr = U8((*ptr)++); 752 uint32_t dst, mask, src, saved; 753 int dptr = *ptr; 754 SDEBUG(" dst: "); 755 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 756 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr); 757 SDEBUG(" mask: 0x%08x", mask); 758 SDEBUG(" src: "); 759 src = atom_get_src(ctx, attr, ptr); 760 dst &= mask; 761 dst |= src; 762 SDEBUG(" dst: "); 763 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 764} 765 766static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg) 767{ 768 uint8_t attr = U8((*ptr)++); 769 uint32_t src, saved; 770 int dptr = *ptr; 771 if (((attr >> 3) & 7) != ATOM_SRC_DWORD) 772 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 773 else { 774 atom_skip_dst(ctx, arg, attr, ptr); 775 saved = 0xCDCDCDCD; 776 } 777 SDEBUG(" src: "); 778 src = atom_get_src(ctx, attr, ptr); 779 SDEBUG(" dst: "); 780 atom_put_dst(ctx, arg, attr, &dptr, src, saved); 781} 782 783static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg) 784{ 785 uint8_t attr = U8((*ptr)++); 786 uint32_t dst, src; 787 SDEBUG(" src1: "); 788 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 789 SDEBUG(" src2: "); 790 src = atom_get_src(ctx, attr, ptr); 791 ctx->ctx->divmul[0] = dst * src; 792} 793 794static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg) 795{ 796 /* nothing */ 797} 798 799static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg) 800{ 801 uint8_t attr = U8((*ptr)++); 802 uint32_t dst, src, saved; 803 int dptr = *ptr; 804 SDEBUG(" dst: "); 805 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 806 SDEBUG(" src: "); 807 src = atom_get_src(ctx, attr, ptr); 808 dst |= src; 809 SDEBUG(" dst: "); 810 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 811} 812 813static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg) 814{ 815 uint8_t val = U8((*ptr)++); 816 SDEBUG("POST card output: 0x%02X\n", val); 817} 818 819static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg) 820{ 821 printk(KERN_INFO "unimplemented!\n"); 822} 823 824static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg) 825{ 826 printk(KERN_INFO "unimplemented!\n"); 827} 828 829static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg) 830{ 831 printk(KERN_INFO "unimplemented!\n"); 832} 833 834static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg) 835{ 836 int idx = U8(*ptr); 837 (*ptr)++; 838 SDEBUG(" block: %d\n", idx); 839 if (!idx) 840 ctx->ctx->data_block = 0; 841 else if (idx == 255) 842 ctx->ctx->data_block = ctx->start; 843 else 844 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx); 845 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block); 846} 847 848static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg) 849{ 850 uint8_t attr = U8((*ptr)++); 851 SDEBUG(" fb_base: "); 852 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr); 853} 854 855static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg) 856{ 857 int port; 858 switch (arg) { 859 case ATOM_PORT_ATI: 860 port = U16(*ptr); 861 if (port < ATOM_IO_NAMES_CNT) 862 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]); 863 else 864 SDEBUG(" port: %d\n", port); 865 if (!port) 866 ctx->ctx->io_mode = ATOM_IO_MM; 867 else 868 ctx->ctx->io_mode = ATOM_IO_IIO | port; 869 (*ptr) += 2; 870 break; 871 case ATOM_PORT_PCI: 872 ctx->ctx->io_mode = ATOM_IO_PCI; 873 (*ptr)++; 874 break; 875 case ATOM_PORT_SYSIO: 876 ctx->ctx->io_mode = ATOM_IO_SYSIO; 877 (*ptr)++; 878 break; 879 } 880} 881 882static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg) 883{ 884 ctx->ctx->reg_block = U16(*ptr); 885 (*ptr) += 2; 886 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block); 887} 888 889static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg) 890{ 891 uint8_t attr = U8((*ptr)++), shift; 892 uint32_t saved, dst; 893 int dptr = *ptr; 894 attr &= 0x38; 895 attr |= atom_def_dst[attr >> 3] << 6; 896 SDEBUG(" dst: "); 897 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 898 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr); 899 SDEBUG(" shift: %d\n", shift); 900 dst <<= shift; 901 SDEBUG(" dst: "); 902 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 903} 904 905static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg) 906{ 907 uint8_t attr = U8((*ptr)++), shift; 908 uint32_t saved, dst; 909 int dptr = *ptr; 910 attr &= 0x38; 911 attr |= atom_def_dst[attr >> 3] << 6; 912 SDEBUG(" dst: "); 913 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 914 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr); 915 SDEBUG(" shift: %d\n", shift); 916 dst >>= shift; 917 SDEBUG(" dst: "); 918 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 919} 920 921static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg) 922{ 923 uint8_t attr = U8((*ptr)++), shift; 924 uint32_t saved, dst; 925 int dptr = *ptr; 926 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3]; 927 SDEBUG(" dst: "); 928 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 929 /* op needs to full dst value */ 930 dst = saved; 931 shift = atom_get_src(ctx, attr, ptr); 932 SDEBUG(" shift: %d\n", shift); 933 dst <<= shift; 934 dst &= atom_arg_mask[dst_align]; 935 dst >>= atom_arg_shift[dst_align]; 936 SDEBUG(" dst: "); 937 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 938} 939 940static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg) 941{ 942 uint8_t attr = U8((*ptr)++), shift; 943 uint32_t saved, dst; 944 int dptr = *ptr; 945 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3]; 946 SDEBUG(" dst: "); 947 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 948 /* op needs to full dst value */ 949 dst = saved; 950 shift = atom_get_src(ctx, attr, ptr); 951 SDEBUG(" shift: %d\n", shift); 952 dst >>= shift; 953 dst &= atom_arg_mask[dst_align]; 954 dst >>= atom_arg_shift[dst_align]; 955 SDEBUG(" dst: "); 956 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 957} 958 959static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg) 960{ 961 uint8_t attr = U8((*ptr)++); 962 uint32_t dst, src, saved; 963 int dptr = *ptr; 964 SDEBUG(" dst: "); 965 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 966 SDEBUG(" src: "); 967 src = atom_get_src(ctx, attr, ptr); 968 dst -= src; 969 SDEBUG(" dst: "); 970 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 971} 972 973static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg) 974{ 975 uint8_t attr = U8((*ptr)++); 976 uint32_t src, val, target; 977 SDEBUG(" switch: "); 978 src = atom_get_src(ctx, attr, ptr); 979 while (U16(*ptr) != ATOM_CASE_END) 980 if (U8(*ptr) == ATOM_CASE_MAGIC) { 981 (*ptr)++; 982 SDEBUG(" case: "); 983 val = 984 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM, 985 ptr); 986 target = U16(*ptr); 987 if (val == src) { 988 SDEBUG(" target: %04X\n", target); 989 *ptr = ctx->start + target; 990 return; 991 } 992 (*ptr) += 2; 993 } else { 994 printk(KERN_INFO "Bad case.\n"); 995 return; 996 } 997 (*ptr) += 2; 998} 999 1000static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg) 1001{ 1002 uint8_t attr = U8((*ptr)++); 1003 uint32_t dst, src; 1004 SDEBUG(" src1: "); 1005 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 1006 SDEBUG(" src2: "); 1007 src = atom_get_src(ctx, attr, ptr); 1008 ctx->ctx->cs_equal = ((dst & src) == 0); 1009 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE"); 1010} 1011 1012static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg) 1013{ 1014 uint8_t attr = U8((*ptr)++); 1015 uint32_t dst, src, saved; 1016 int dptr = *ptr; 1017 SDEBUG(" dst: "); 1018 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 1019 SDEBUG(" src: "); 1020 src = atom_get_src(ctx, attr, ptr); 1021 dst ^= src; 1022 SDEBUG(" dst: "); 1023 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 1024} 1025 1026static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg) 1027{ 1028 printk(KERN_INFO "unimplemented!\n"); 1029} 1030 1031static struct { 1032 void (*func) (atom_exec_context *, int *, int); 1033 int arg; 1034} opcode_table[ATOM_OP_CNT] = { 1035 { 1036 NULL, 0}, { 1037 atom_op_move, ATOM_ARG_REG}, { 1038 atom_op_move, ATOM_ARG_PS}, { 1039 atom_op_move, ATOM_ARG_WS}, { 1040 atom_op_move, ATOM_ARG_FB}, { 1041 atom_op_move, ATOM_ARG_PLL}, { 1042 atom_op_move, ATOM_ARG_MC}, { 1043 atom_op_and, ATOM_ARG_REG}, { 1044 atom_op_and, ATOM_ARG_PS}, { 1045 atom_op_and, ATOM_ARG_WS}, { 1046 atom_op_and, ATOM_ARG_FB}, { 1047 atom_op_and, ATOM_ARG_PLL}, { 1048 atom_op_and, ATOM_ARG_MC}, { 1049 atom_op_or, ATOM_ARG_REG}, { 1050 atom_op_or, ATOM_ARG_PS}, { 1051 atom_op_or, ATOM_ARG_WS}, { 1052 atom_op_or, ATOM_ARG_FB}, { 1053 atom_op_or, ATOM_ARG_PLL}, { 1054 atom_op_or, ATOM_ARG_MC}, { 1055 atom_op_shift_left, ATOM_ARG_REG}, { 1056 atom_op_shift_left, ATOM_ARG_PS}, { 1057 atom_op_shift_left, ATOM_ARG_WS}, { 1058 atom_op_shift_left, ATOM_ARG_FB}, { 1059 atom_op_shift_left, ATOM_ARG_PLL}, { 1060 atom_op_shift_left, ATOM_ARG_MC}, { 1061 atom_op_shift_right, ATOM_ARG_REG}, { 1062 atom_op_shift_right, ATOM_ARG_PS}, { 1063 atom_op_shift_right, ATOM_ARG_WS}, { 1064 atom_op_shift_right, ATOM_ARG_FB}, { 1065 atom_op_shift_right, ATOM_ARG_PLL}, { 1066 atom_op_shift_right, ATOM_ARG_MC}, { 1067 atom_op_mul, ATOM_ARG_REG}, { 1068 atom_op_mul, ATOM_ARG_PS}, { 1069 atom_op_mul, ATOM_ARG_WS}, { 1070 atom_op_mul, ATOM_ARG_FB}, { 1071 atom_op_mul, ATOM_ARG_PLL}, { 1072 atom_op_mul, ATOM_ARG_MC}, { 1073 atom_op_div, ATOM_ARG_REG}, { 1074 atom_op_div, ATOM_ARG_PS}, { 1075 atom_op_div, ATOM_ARG_WS}, { 1076 atom_op_div, ATOM_ARG_FB}, { 1077 atom_op_div, ATOM_ARG_PLL}, { 1078 atom_op_div, ATOM_ARG_MC}, { 1079 atom_op_add, ATOM_ARG_REG}, { 1080 atom_op_add, ATOM_ARG_PS}, { 1081 atom_op_add, ATOM_ARG_WS}, { 1082 atom_op_add, ATOM_ARG_FB}, { 1083 atom_op_add, ATOM_ARG_PLL}, { 1084 atom_op_add, ATOM_ARG_MC}, { 1085 atom_op_sub, ATOM_ARG_REG}, { 1086 atom_op_sub, ATOM_ARG_PS}, { 1087 atom_op_sub, ATOM_ARG_WS}, { 1088 atom_op_sub, ATOM_ARG_FB}, { 1089 atom_op_sub, ATOM_ARG_PLL}, { 1090 atom_op_sub, ATOM_ARG_MC}, { 1091 atom_op_setport, ATOM_PORT_ATI}, { 1092 atom_op_setport, ATOM_PORT_PCI}, { 1093 atom_op_setport, ATOM_PORT_SYSIO}, { 1094 atom_op_setregblock, 0}, { 1095 atom_op_setfbbase, 0}, { 1096 atom_op_compare, ATOM_ARG_REG}, { 1097 atom_op_compare, ATOM_ARG_PS}, { 1098 atom_op_compare, ATOM_ARG_WS}, { 1099 atom_op_compare, ATOM_ARG_FB}, { 1100 atom_op_compare, ATOM_ARG_PLL}, { 1101 atom_op_compare, ATOM_ARG_MC}, { 1102 atom_op_switch, 0}, { 1103 atom_op_jump, ATOM_COND_ALWAYS}, { 1104 atom_op_jump, ATOM_COND_EQUAL}, { 1105 atom_op_jump, ATOM_COND_BELOW}, { 1106 atom_op_jump, ATOM_COND_ABOVE}, { 1107 atom_op_jump, ATOM_COND_BELOWOREQUAL}, { 1108 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, { 1109 atom_op_jump, ATOM_COND_NOTEQUAL}, { 1110 atom_op_test, ATOM_ARG_REG}, { 1111 atom_op_test, ATOM_ARG_PS}, { 1112 atom_op_test, ATOM_ARG_WS}, { 1113 atom_op_test, ATOM_ARG_FB}, { 1114 atom_op_test, ATOM_ARG_PLL}, { 1115 atom_op_test, ATOM_ARG_MC}, { 1116 atom_op_delay, ATOM_UNIT_MILLISEC}, { 1117 atom_op_delay, ATOM_UNIT_MICROSEC}, { 1118 atom_op_calltable, 0}, { 1119 atom_op_repeat, 0}, { 1120 atom_op_clear, ATOM_ARG_REG}, { 1121 atom_op_clear, ATOM_ARG_PS}, { 1122 atom_op_clear, ATOM_ARG_WS}, { 1123 atom_op_clear, ATOM_ARG_FB}, { 1124 atom_op_clear, ATOM_ARG_PLL}, { 1125 atom_op_clear, ATOM_ARG_MC}, { 1126 atom_op_nop, 0}, { 1127 atom_op_eot, 0}, { 1128 atom_op_mask, ATOM_ARG_REG}, { 1129 atom_op_mask, ATOM_ARG_PS}, { 1130 atom_op_mask, ATOM_ARG_WS}, { 1131 atom_op_mask, ATOM_ARG_FB}, { 1132 atom_op_mask, ATOM_ARG_PLL}, { 1133 atom_op_mask, ATOM_ARG_MC}, { 1134 atom_op_postcard, 0}, { 1135 atom_op_beep, 0}, { 1136 atom_op_savereg, 0}, { 1137 atom_op_restorereg, 0}, { 1138 atom_op_setdatablock, 0}, { 1139 atom_op_xor, ATOM_ARG_REG}, { 1140 atom_op_xor, ATOM_ARG_PS}, { 1141 atom_op_xor, ATOM_ARG_WS}, { 1142 atom_op_xor, ATOM_ARG_FB}, { 1143 atom_op_xor, ATOM_ARG_PLL}, { 1144 atom_op_xor, ATOM_ARG_MC}, { 1145 atom_op_shl, ATOM_ARG_REG}, { 1146 atom_op_shl, ATOM_ARG_PS}, { 1147 atom_op_shl, ATOM_ARG_WS}, { 1148 atom_op_shl, ATOM_ARG_FB}, { 1149 atom_op_shl, ATOM_ARG_PLL}, { 1150 atom_op_shl, ATOM_ARG_MC}, { 1151 atom_op_shr, ATOM_ARG_REG}, { 1152 atom_op_shr, ATOM_ARG_PS}, { 1153 atom_op_shr, ATOM_ARG_WS}, { 1154 atom_op_shr, ATOM_ARG_FB}, { 1155 atom_op_shr, ATOM_ARG_PLL}, { 1156 atom_op_shr, ATOM_ARG_MC}, { 1157atom_op_debug, 0},}; 1158 1159static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params) 1160{ 1161 int base = CU16(ctx->cmd_table + 4 + 2 * index); 1162 int len, ws, ps, ptr; 1163 unsigned char op; 1164 atom_exec_context ectx; 1165 int ret = 0; 1166 1167 if (!base) 1168 return -EINVAL; 1169 1170 len = CU16(base + ATOM_CT_SIZE_PTR); 1171 ws = CU8(base + ATOM_CT_WS_PTR); 1172 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK; 1173 ptr = base + ATOM_CT_CODE_PTR; 1174 1175 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps); 1176 1177 ectx.ctx = ctx; 1178 ectx.ps_shift = ps / 4; 1179 ectx.start = base; 1180 ectx.ps = params; 1181 ectx.abort = false; 1182 ectx.last_jump = 0; 1183 if (ws) 1184 ectx.ws = kzalloc(4 * ws, GFP_KERNEL); 1185 else 1186 ectx.ws = NULL; 1187 1188 debug_depth++; 1189 while (1) { 1190 op = CU8(ptr++); 1191 if (op < ATOM_OP_NAMES_CNT) 1192 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1); 1193 else 1194 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1); 1195 if (ectx.abort) { 1196 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n", 1197 base, len, ws, ps, ptr - 1); 1198 ret = -EINVAL; 1199 goto free; 1200 } 1201 1202 if (op < ATOM_OP_CNT && op > 0) 1203 opcode_table[op].func(&ectx, &ptr, 1204 opcode_table[op].arg); 1205 else 1206 break; 1207 1208 if (op == ATOM_OP_EOT) 1209 break; 1210 } 1211 debug_depth--; 1212 SDEBUG("<<\n"); 1213 1214free: 1215 if (ws) 1216 kfree(ectx.ws); 1217 return ret; 1218} 1219 1220int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params) 1221{ 1222 int r; 1223 1224 mutex_lock(&ctx->mutex); 1225 /* reset reg block */ 1226 ctx->reg_block = 0; 1227 /* reset fb window */ 1228 ctx->fb_base = 0; 1229 /* reset io mode */ 1230 ctx->io_mode = ATOM_IO_MM; 1231 r = atom_execute_table_locked(ctx, index, params); 1232 mutex_unlock(&ctx->mutex); 1233 return r; 1234} 1235 1236static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 }; 1237 1238static void atom_index_iio(struct atom_context *ctx, int base) 1239{ 1240 ctx->iio = kzalloc(2 * 256, GFP_KERNEL); 1241 while (CU8(base) == ATOM_IIO_START) { 1242 ctx->iio[CU8(base + 1)] = base + 2; 1243 base += 2; 1244 while (CU8(base) != ATOM_IIO_END) 1245 base += atom_iio_len[CU8(base)]; 1246 base += 3; 1247 } 1248} 1249 1250struct atom_context *atom_parse(struct card_info *card, void *bios) 1251{ 1252 int base; 1253 struct atom_context *ctx = 1254 kzalloc(sizeof(struct atom_context), GFP_KERNEL); 1255 char *str; 1256 char name[512]; 1257 int i; 1258 1259 if (!ctx) 1260 return NULL; 1261 1262 ctx->card = card; 1263 ctx->bios = bios; 1264 1265 if (CU16(0) != ATOM_BIOS_MAGIC) { 1266 printk(KERN_INFO "Invalid BIOS magic.\n"); 1267 kfree(ctx); 1268 return NULL; 1269 } 1270 if (strncmp 1271 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC, 1272 strlen(ATOM_ATI_MAGIC))) { 1273 printk(KERN_INFO "Invalid ATI magic.\n"); 1274 kfree(ctx); 1275 return NULL; 1276 } 1277 1278 base = CU16(ATOM_ROM_TABLE_PTR); 1279 if (strncmp 1280 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC, 1281 strlen(ATOM_ROM_MAGIC))) { 1282 printk(KERN_INFO "Invalid ATOM magic.\n"); 1283 kfree(ctx); 1284 return NULL; 1285 } 1286 1287 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR); 1288 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR); 1289 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4); 1290 1291 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR)); 1292 while (*str && ((*str == '\n') || (*str == '\r'))) 1293 str++; 1294 /* name string isn't always 0 terminated */ 1295 for (i = 0; i < 511; i++) { 1296 name[i] = str[i]; 1297 if (name[i] < '.' || name[i] > 'z') { 1298 name[i] = 0; 1299 break; 1300 } 1301 } 1302 printk(KERN_INFO "ATOM BIOS: %s\n", name); 1303 1304 return ctx; 1305} 1306 1307int atom_asic_init(struct atom_context *ctx) 1308{ 1309 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR); 1310 uint32_t ps[16]; 1311 memset(ps, 0, 64); 1312 1313 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR)); 1314 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR)); 1315 if (!ps[0] || !ps[1]) 1316 return 1; 1317 1318 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT)) 1319 return 1; 1320 return atom_execute_table(ctx, ATOM_CMD_INIT, ps); 1321} 1322 1323void atom_destroy(struct atom_context *ctx) 1324{ 1325 if (ctx->iio) 1326 kfree(ctx->iio); 1327 kfree(ctx); 1328} 1329 1330bool atom_parse_data_header(struct atom_context *ctx, int index, 1331 uint16_t * size, uint8_t * frev, uint8_t * crev, 1332 uint16_t * data_start) 1333{ 1334 int offset = index * 2 + 4; 1335 int idx = CU16(ctx->data_table + offset); 1336 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4); 1337 1338 if (!mdt[index]) 1339 return false; 1340 1341 if (size) 1342 *size = CU16(idx); 1343 if (frev) 1344 *frev = CU8(idx + 2); 1345 if (crev) 1346 *crev = CU8(idx + 3); 1347 *data_start = idx; 1348 return true; 1349} 1350 1351bool atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev, 1352 uint8_t * crev) 1353{ 1354 int offset = index * 2 + 4; 1355 int idx = CU16(ctx->cmd_table + offset); 1356 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4); 1357 1358 if (!mct[index]) 1359 return false; 1360 1361 if (frev) 1362 *frev = CU8(idx + 2); 1363 if (crev) 1364 *crev = CU8(idx + 3); 1365 return true; 1366} 1367 1368int atom_allocate_fb_scratch(struct atom_context *ctx) 1369{ 1370 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware); 1371 uint16_t data_offset; 1372 int usage_bytes = 0; 1373 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage; 1374 1375 if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) { 1376 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset); 1377 1378 DRM_DEBUG("atom firmware requested %08x %dkb\n", 1379 firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware, 1380 firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb); 1381 1382 usage_bytes = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb * 1024; 1383 } 1384 ctx->scratch_size_bytes = 0; 1385 if (usage_bytes == 0) 1386 usage_bytes = 20 * 1024; 1387 /* allocate some scratch memory */ 1388 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL); 1389 if (!ctx->scratch) 1390 return -ENOMEM; 1391 ctx->scratch_size_bytes = usage_bytes; 1392 return 0; 1393} 1394