root/drivers/gpu/drm/radeon/atom.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. debug_print_spaces
  2. atom_iio_execute
  3. atom_get_src_int
  4. atom_skip_src_int
  5. atom_get_src
  6. atom_get_src_direct
  7. atom_get_dst
  8. atom_skip_dst
  9. atom_put_dst
  10. atom_op_add
  11. atom_op_and
  12. atom_op_beep
  13. atom_op_calltable
  14. atom_op_clear
  15. atom_op_compare
  16. atom_op_delay
  17. atom_op_div
  18. atom_op_eot
  19. atom_op_jump
  20. atom_op_mask
  21. atom_op_move
  22. atom_op_mul
  23. atom_op_nop
  24. atom_op_or
  25. atom_op_postcard
  26. atom_op_repeat
  27. atom_op_restorereg
  28. atom_op_savereg
  29. atom_op_setdatablock
  30. atom_op_setfbbase
  31. atom_op_setport
  32. atom_op_setregblock
  33. atom_op_shift_left
  34. atom_op_shift_right
  35. atom_op_shl
  36. atom_op_shr
  37. atom_op_sub
  38. atom_op_switch
  39. atom_op_test
  40. atom_op_xor
  41. atom_op_debug
  42. atom_execute_table_locked
  43. atom_execute_table_scratch_unlocked
  44. atom_execute_table
  45. atom_index_iio
  46. atom_parse
  47. atom_asic_init
  48. atom_destroy
  49. atom_parse_data_header
  50. atom_parse_cmd_header
  51. atom_allocate_fb_scratch

   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 
  29 #include <asm/unaligned.h>
  30 
  31 #include <drm/drm_device.h>
  32 #include <drm/drm_util.h>
  33 
  34 #define ATOM_DEBUG
  35 
  36 #include "atom.h"
  37 #include "atom-names.h"
  38 #include "atom-bits.h"
  39 #include "radeon.h"
  40 
  41 #define ATOM_COND_ABOVE         0
  42 #define ATOM_COND_ABOVEOREQUAL  1
  43 #define ATOM_COND_ALWAYS        2
  44 #define ATOM_COND_BELOW         3
  45 #define ATOM_COND_BELOWOREQUAL  4
  46 #define ATOM_COND_EQUAL         5
  47 #define ATOM_COND_NOTEQUAL      6
  48 
  49 #define ATOM_PORT_ATI   0
  50 #define ATOM_PORT_PCI   1
  51 #define ATOM_PORT_SYSIO 2
  52 
  53 #define ATOM_UNIT_MICROSEC      0
  54 #define ATOM_UNIT_MILLISEC      1
  55 
  56 #define PLL_INDEX       2
  57 #define PLL_DATA        3
  58 
  59 typedef struct {
  60         struct atom_context *ctx;
  61         uint32_t *ps, *ws;
  62         int ps_shift;
  63         uint16_t start;
  64         unsigned last_jump;
  65         unsigned long last_jump_jiffies;
  66         bool abort;
  67 } atom_exec_context;
  68 
  69 int atom_debug = 0;
  70 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params);
  71 int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params);
  72 
  73 static uint32_t atom_arg_mask[8] = {
  74         0xFFFFFFFF, 0x0000FFFF, 0x00FFFF00, 0xFFFF0000,
  75         0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
  76 };
  77 static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
  78 
  79 static int atom_dst_to_src[8][4] = {
  80         /* translate destination alignment field to the source alignment encoding */
  81         {0, 0, 0, 0},
  82         {1, 2, 3, 0},
  83         {1, 2, 3, 0},
  84         {1, 2, 3, 0},
  85         {4, 5, 6, 7},
  86         {4, 5, 6, 7},
  87         {4, 5, 6, 7},
  88         {4, 5, 6, 7},
  89 };
  90 static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
  91 
  92 static int debug_depth = 0;
  93 #ifdef ATOM_DEBUG
  94 static void debug_print_spaces(int n)
  95 {
  96         while (n--)
  97                 printk("   ");
  98 }
  99 
 100 #define DEBUG(...) do if (atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
 101 #define SDEBUG(...) do if (atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
 102 #else
 103 #define DEBUG(...) do { } while (0)
 104 #define SDEBUG(...) do { } while (0)
 105 #endif
 106 
 107 static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
 108                                  uint32_t index, uint32_t data)
 109 {
 110         struct radeon_device *rdev = ctx->card->dev->dev_private;
 111         uint32_t temp = 0xCDCDCDCD;
 112 
 113         while (1)
 114                 switch (CU8(base)) {
 115                 case ATOM_IIO_NOP:
 116                         base++;
 117                         break;
 118                 case ATOM_IIO_READ:
 119                         temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1));
 120                         base += 3;
 121                         break;
 122                 case ATOM_IIO_WRITE:
 123                         if (rdev->family == CHIP_RV515)
 124                                 (void)ctx->card->ioreg_read(ctx->card, CU16(base + 1));
 125                         ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp);
 126                         base += 3;
 127                         break;
 128                 case ATOM_IIO_CLEAR:
 129                         temp &=
 130                             ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
 131                               CU8(base + 2));
 132                         base += 3;
 133                         break;
 134                 case ATOM_IIO_SET:
 135                         temp |=
 136                             (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base +
 137                                                                         2);
 138                         base += 3;
 139                         break;
 140                 case ATOM_IIO_MOVE_INDEX:
 141                         temp &=
 142                             ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
 143                               CU8(base + 3));
 144                         temp |=
 145                             ((index >> CU8(base + 2)) &
 146                              (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
 147                                                                           3);
 148                         base += 4;
 149                         break;
 150                 case ATOM_IIO_MOVE_DATA:
 151                         temp &=
 152                             ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
 153                               CU8(base + 3));
 154                         temp |=
 155                             ((data >> CU8(base + 2)) &
 156                              (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
 157                                                                           3);
 158                         base += 4;
 159                         break;
 160                 case ATOM_IIO_MOVE_ATTR:
 161                         temp &=
 162                             ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
 163                               CU8(base + 3));
 164                         temp |=
 165                             ((ctx->
 166                               io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 -
 167                                                                           CU8
 168                                                                           (base
 169                                                                            +
 170                                                                            1))))
 171                             << CU8(base + 3);
 172                         base += 4;
 173                         break;
 174                 case ATOM_IIO_END:
 175                         return temp;
 176                 default:
 177                         pr_info("Unknown IIO opcode\n");
 178                         return 0;
 179                 }
 180 }
 181 
 182 static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
 183                                  int *ptr, uint32_t *saved, int print)
 184 {
 185         uint32_t idx, val = 0xCDCDCDCD, align, arg;
 186         struct atom_context *gctx = ctx->ctx;
 187         arg = attr & 7;
 188         align = (attr >> 3) & 7;
 189         switch (arg) {
 190         case ATOM_ARG_REG:
 191                 idx = U16(*ptr);
 192                 (*ptr) += 2;
 193                 if (print)
 194                         DEBUG("REG[0x%04X]", idx);
 195                 idx += gctx->reg_block;
 196                 switch (gctx->io_mode) {
 197                 case ATOM_IO_MM:
 198                         val = gctx->card->reg_read(gctx->card, idx);
 199                         break;
 200                 case ATOM_IO_PCI:
 201                         pr_info("PCI registers are not implemented\n");
 202                         return 0;
 203                 case ATOM_IO_SYSIO:
 204                         pr_info("SYSIO registers are not implemented\n");
 205                         return 0;
 206                 default:
 207                         if (!(gctx->io_mode & 0x80)) {
 208                                 pr_info("Bad IO mode\n");
 209                                 return 0;
 210                         }
 211                         if (!gctx->iio[gctx->io_mode & 0x7F]) {
 212                                 pr_info("Undefined indirect IO read method %d\n",
 213                                         gctx->io_mode & 0x7F);
 214                                 return 0;
 215                         }
 216                         val =
 217                             atom_iio_execute(gctx,
 218                                              gctx->iio[gctx->io_mode & 0x7F],
 219                                              idx, 0);
 220                 }
 221                 break;
 222         case ATOM_ARG_PS:
 223                 idx = U8(*ptr);
 224                 (*ptr)++;
 225                 /* get_unaligned_le32 avoids unaligned accesses from atombios
 226                  * tables, noticed on a DEC Alpha. */
 227                 val = get_unaligned_le32((u32 *)&ctx->ps[idx]);
 228                 if (print)
 229                         DEBUG("PS[0x%02X,0x%04X]", idx, val);
 230                 break;
 231         case ATOM_ARG_WS:
 232                 idx = U8(*ptr);
 233                 (*ptr)++;
 234                 if (print)
 235                         DEBUG("WS[0x%02X]", idx);
 236                 switch (idx) {
 237                 case ATOM_WS_QUOTIENT:
 238                         val = gctx->divmul[0];
 239                         break;
 240                 case ATOM_WS_REMAINDER:
 241                         val = gctx->divmul[1];
 242                         break;
 243                 case ATOM_WS_DATAPTR:
 244                         val = gctx->data_block;
 245                         break;
 246                 case ATOM_WS_SHIFT:
 247                         val = gctx->shift;
 248                         break;
 249                 case ATOM_WS_OR_MASK:
 250                         val = 1 << gctx->shift;
 251                         break;
 252                 case ATOM_WS_AND_MASK:
 253                         val = ~(1 << gctx->shift);
 254                         break;
 255                 case ATOM_WS_FB_WINDOW:
 256                         val = gctx->fb_base;
 257                         break;
 258                 case ATOM_WS_ATTRIBUTES:
 259                         val = gctx->io_attr;
 260                         break;
 261                 case ATOM_WS_REGPTR:
 262                         val = gctx->reg_block;
 263                         break;
 264                 default:
 265                         val = ctx->ws[idx];
 266                 }
 267                 break;
 268         case ATOM_ARG_ID:
 269                 idx = U16(*ptr);
 270                 (*ptr) += 2;
 271                 if (print) {
 272                         if (gctx->data_block)
 273                                 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
 274                         else
 275                                 DEBUG("ID[0x%04X]", idx);
 276                 }
 277                 val = U32(idx + gctx->data_block);
 278                 break;
 279         case ATOM_ARG_FB:
 280                 idx = U8(*ptr);
 281                 (*ptr)++;
 282                 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
 283                         DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n",
 284                                   gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
 285                         val = 0;
 286                 } else
 287                         val = gctx->scratch[(gctx->fb_base / 4) + idx];
 288                 if (print)
 289                         DEBUG("FB[0x%02X]", idx);
 290                 break;
 291         case ATOM_ARG_IMM:
 292                 switch (align) {
 293                 case ATOM_SRC_DWORD:
 294                         val = U32(*ptr);
 295                         (*ptr) += 4;
 296                         if (print)
 297                                 DEBUG("IMM 0x%08X\n", val);
 298                         return val;
 299                 case ATOM_SRC_WORD0:
 300                 case ATOM_SRC_WORD8:
 301                 case ATOM_SRC_WORD16:
 302                         val = U16(*ptr);
 303                         (*ptr) += 2;
 304                         if (print)
 305                                 DEBUG("IMM 0x%04X\n", val);
 306                         return val;
 307                 case ATOM_SRC_BYTE0:
 308                 case ATOM_SRC_BYTE8:
 309                 case ATOM_SRC_BYTE16:
 310                 case ATOM_SRC_BYTE24:
 311                         val = U8(*ptr);
 312                         (*ptr)++;
 313                         if (print)
 314                                 DEBUG("IMM 0x%02X\n", val);
 315                         return val;
 316                 }
 317                 return 0;
 318         case ATOM_ARG_PLL:
 319                 idx = U8(*ptr);
 320                 (*ptr)++;
 321                 if (print)
 322                         DEBUG("PLL[0x%02X]", idx);
 323                 val = gctx->card->pll_read(gctx->card, idx);
 324                 break;
 325         case ATOM_ARG_MC:
 326                 idx = U8(*ptr);
 327                 (*ptr)++;
 328                 if (print)
 329                         DEBUG("MC[0x%02X]", idx);
 330                 val = gctx->card->mc_read(gctx->card, idx);
 331                 break;
 332         }
 333         if (saved)
 334                 *saved = val;
 335         val &= atom_arg_mask[align];
 336         val >>= atom_arg_shift[align];
 337         if (print)
 338                 switch (align) {
 339                 case ATOM_SRC_DWORD:
 340                         DEBUG(".[31:0] -> 0x%08X\n", val);
 341                         break;
 342                 case ATOM_SRC_WORD0:
 343                         DEBUG(".[15:0] -> 0x%04X\n", val);
 344                         break;
 345                 case ATOM_SRC_WORD8:
 346                         DEBUG(".[23:8] -> 0x%04X\n", val);
 347                         break;
 348                 case ATOM_SRC_WORD16:
 349                         DEBUG(".[31:16] -> 0x%04X\n", val);
 350                         break;
 351                 case ATOM_SRC_BYTE0:
 352                         DEBUG(".[7:0] -> 0x%02X\n", val);
 353                         break;
 354                 case ATOM_SRC_BYTE8:
 355                         DEBUG(".[15:8] -> 0x%02X\n", val);
 356                         break;
 357                 case ATOM_SRC_BYTE16:
 358                         DEBUG(".[23:16] -> 0x%02X\n", val);
 359                         break;
 360                 case ATOM_SRC_BYTE24:
 361                         DEBUG(".[31:24] -> 0x%02X\n", val);
 362                         break;
 363                 }
 364         return val;
 365 }
 366 
 367 static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
 368 {
 369         uint32_t align = (attr >> 3) & 7, arg = attr & 7;
 370         switch (arg) {
 371         case ATOM_ARG_REG:
 372         case ATOM_ARG_ID:
 373                 (*ptr) += 2;
 374                 break;
 375         case ATOM_ARG_PLL:
 376         case ATOM_ARG_MC:
 377         case ATOM_ARG_PS:
 378         case ATOM_ARG_WS:
 379         case ATOM_ARG_FB:
 380                 (*ptr)++;
 381                 break;
 382         case ATOM_ARG_IMM:
 383                 switch (align) {
 384                 case ATOM_SRC_DWORD:
 385                         (*ptr) += 4;
 386                         return;
 387                 case ATOM_SRC_WORD0:
 388                 case ATOM_SRC_WORD8:
 389                 case ATOM_SRC_WORD16:
 390                         (*ptr) += 2;
 391                         return;
 392                 case ATOM_SRC_BYTE0:
 393                 case ATOM_SRC_BYTE8:
 394                 case ATOM_SRC_BYTE16:
 395                 case ATOM_SRC_BYTE24:
 396                         (*ptr)++;
 397                         return;
 398                 }
 399                 return;
 400         }
 401 }
 402 
 403 static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
 404 {
 405         return atom_get_src_int(ctx, attr, ptr, NULL, 1);
 406 }
 407 
 408 static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
 409 {
 410         uint32_t val = 0xCDCDCDCD;
 411 
 412         switch (align) {
 413         case ATOM_SRC_DWORD:
 414                 val = U32(*ptr);
 415                 (*ptr) += 4;
 416                 break;
 417         case ATOM_SRC_WORD0:
 418         case ATOM_SRC_WORD8:
 419         case ATOM_SRC_WORD16:
 420                 val = U16(*ptr);
 421                 (*ptr) += 2;
 422                 break;
 423         case ATOM_SRC_BYTE0:
 424         case ATOM_SRC_BYTE8:
 425         case ATOM_SRC_BYTE16:
 426         case ATOM_SRC_BYTE24:
 427                 val = U8(*ptr);
 428                 (*ptr)++;
 429                 break;
 430         }
 431         return val;
 432 }
 433 
 434 static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
 435                              int *ptr, uint32_t *saved, int print)
 436 {
 437         return atom_get_src_int(ctx,
 438                                 arg | atom_dst_to_src[(attr >> 3) &
 439                                                       7][(attr >> 6) & 3] << 3,
 440                                 ptr, saved, print);
 441 }
 442 
 443 static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
 444 {
 445         atom_skip_src_int(ctx,
 446                           arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
 447                                                                  3] << 3, ptr);
 448 }
 449 
 450 static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
 451                          int *ptr, uint32_t val, uint32_t saved)
 452 {
 453         uint32_t align =
 454             atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
 455             val, idx;
 456         struct atom_context *gctx = ctx->ctx;
 457         old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
 458         val <<= atom_arg_shift[align];
 459         val &= atom_arg_mask[align];
 460         saved &= ~atom_arg_mask[align];
 461         val |= saved;
 462         switch (arg) {
 463         case ATOM_ARG_REG:
 464                 idx = U16(*ptr);
 465                 (*ptr) += 2;
 466                 DEBUG("REG[0x%04X]", idx);
 467                 idx += gctx->reg_block;
 468                 switch (gctx->io_mode) {
 469                 case ATOM_IO_MM:
 470                         if (idx == 0)
 471                                 gctx->card->reg_write(gctx->card, idx,
 472                                                       val << 2);
 473                         else
 474                                 gctx->card->reg_write(gctx->card, idx, val);
 475                         break;
 476                 case ATOM_IO_PCI:
 477                         pr_info("PCI registers are not implemented\n");
 478                         return;
 479                 case ATOM_IO_SYSIO:
 480                         pr_info("SYSIO registers are not implemented\n");
 481                         return;
 482                 default:
 483                         if (!(gctx->io_mode & 0x80)) {
 484                                 pr_info("Bad IO mode\n");
 485                                 return;
 486                         }
 487                         if (!gctx->iio[gctx->io_mode & 0xFF]) {
 488                                 pr_info("Undefined indirect IO write method %d\n",
 489                                         gctx->io_mode & 0x7F);
 490                                 return;
 491                         }
 492                         atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
 493                                          idx, val);
 494                 }
 495                 break;
 496         case ATOM_ARG_PS:
 497                 idx = U8(*ptr);
 498                 (*ptr)++;
 499                 DEBUG("PS[0x%02X]", idx);
 500                 ctx->ps[idx] = cpu_to_le32(val);
 501                 break;
 502         case ATOM_ARG_WS:
 503                 idx = U8(*ptr);
 504                 (*ptr)++;
 505                 DEBUG("WS[0x%02X]", idx);
 506                 switch (idx) {
 507                 case ATOM_WS_QUOTIENT:
 508                         gctx->divmul[0] = val;
 509                         break;
 510                 case ATOM_WS_REMAINDER:
 511                         gctx->divmul[1] = val;
 512                         break;
 513                 case ATOM_WS_DATAPTR:
 514                         gctx->data_block = val;
 515                         break;
 516                 case ATOM_WS_SHIFT:
 517                         gctx->shift = val;
 518                         break;
 519                 case ATOM_WS_OR_MASK:
 520                 case ATOM_WS_AND_MASK:
 521                         break;
 522                 case ATOM_WS_FB_WINDOW:
 523                         gctx->fb_base = val;
 524                         break;
 525                 case ATOM_WS_ATTRIBUTES:
 526                         gctx->io_attr = val;
 527                         break;
 528                 case ATOM_WS_REGPTR:
 529                         gctx->reg_block = val;
 530                         break;
 531                 default:
 532                         ctx->ws[idx] = val;
 533                 }
 534                 break;
 535         case ATOM_ARG_FB:
 536                 idx = U8(*ptr);
 537                 (*ptr)++;
 538                 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
 539                         DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n",
 540                                   gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
 541                 } else
 542                         gctx->scratch[(gctx->fb_base / 4) + idx] = val;
 543                 DEBUG("FB[0x%02X]", idx);
 544                 break;
 545         case ATOM_ARG_PLL:
 546                 idx = U8(*ptr);
 547                 (*ptr)++;
 548                 DEBUG("PLL[0x%02X]", idx);
 549                 gctx->card->pll_write(gctx->card, idx, val);
 550                 break;
 551         case ATOM_ARG_MC:
 552                 idx = U8(*ptr);
 553                 (*ptr)++;
 554                 DEBUG("MC[0x%02X]", idx);
 555                 gctx->card->mc_write(gctx->card, idx, val);
 556                 return;
 557         }
 558         switch (align) {
 559         case ATOM_SRC_DWORD:
 560                 DEBUG(".[31:0] <- 0x%08X\n", old_val);
 561                 break;
 562         case ATOM_SRC_WORD0:
 563                 DEBUG(".[15:0] <- 0x%04X\n", old_val);
 564                 break;
 565         case ATOM_SRC_WORD8:
 566                 DEBUG(".[23:8] <- 0x%04X\n", old_val);
 567                 break;
 568         case ATOM_SRC_WORD16:
 569                 DEBUG(".[31:16] <- 0x%04X\n", old_val);
 570                 break;
 571         case ATOM_SRC_BYTE0:
 572                 DEBUG(".[7:0] <- 0x%02X\n", old_val);
 573                 break;
 574         case ATOM_SRC_BYTE8:
 575                 DEBUG(".[15:8] <- 0x%02X\n", old_val);
 576                 break;
 577         case ATOM_SRC_BYTE16:
 578                 DEBUG(".[23:16] <- 0x%02X\n", old_val);
 579                 break;
 580         case ATOM_SRC_BYTE24:
 581                 DEBUG(".[31:24] <- 0x%02X\n", old_val);
 582                 break;
 583         }
 584 }
 585 
 586 static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
 587 {
 588         uint8_t attr = U8((*ptr)++);
 589         uint32_t dst, src, saved;
 590         int dptr = *ptr;
 591         SDEBUG("   dst: ");
 592         dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
 593         SDEBUG("   src: ");
 594         src = atom_get_src(ctx, attr, ptr);
 595         dst += src;
 596         SDEBUG("   dst: ");
 597         atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
 598 }
 599 
 600 static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
 601 {
 602         uint8_t attr = U8((*ptr)++);
 603         uint32_t dst, src, saved;
 604         int dptr = *ptr;
 605         SDEBUG("   dst: ");
 606         dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
 607         SDEBUG("   src: ");
 608         src = atom_get_src(ctx, attr, ptr);
 609         dst &= src;
 610         SDEBUG("   dst: ");
 611         atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
 612 }
 613 
 614 static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
 615 {
 616         printk("ATOM BIOS beeped!\n");
 617 }
 618 
 619 static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
 620 {
 621         int idx = U8((*ptr)++);
 622         int r = 0;
 623 
 624         if (idx < ATOM_TABLE_NAMES_CNT)
 625                 SDEBUG("   table: %d (%s)\n", idx, atom_table_names[idx]);
 626         else
 627                 SDEBUG("   table: %d\n", idx);
 628         if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
 629                 r = atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift);
 630         if (r) {
 631                 ctx->abort = true;
 632         }
 633 }
 634 
 635 static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
 636 {
 637         uint8_t attr = U8((*ptr)++);
 638         uint32_t saved;
 639         int dptr = *ptr;
 640         attr &= 0x38;
 641         attr |= atom_def_dst[attr >> 3] << 6;
 642         atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
 643         SDEBUG("   dst: ");
 644         atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
 645 }
 646 
 647 static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
 648 {
 649         uint8_t attr = U8((*ptr)++);
 650         uint32_t dst, src;
 651         SDEBUG("   src1: ");
 652         dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
 653         SDEBUG("   src2: ");
 654         src = atom_get_src(ctx, attr, ptr);
 655         ctx->ctx->cs_equal = (dst == src);
 656         ctx->ctx->cs_above = (dst > src);
 657         SDEBUG("   result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
 658                ctx->ctx->cs_above ? "GT" : "LE");
 659 }
 660 
 661 static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
 662 {
 663         unsigned count = U8((*ptr)++);
 664         SDEBUG("   count: %d\n", count);
 665         if (arg == ATOM_UNIT_MICROSEC)
 666                 udelay(count);
 667         else if (!drm_can_sleep())
 668                 mdelay(count);
 669         else
 670                 msleep(count);
 671 }
 672 
 673 static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
 674 {
 675         uint8_t attr = U8((*ptr)++);
 676         uint32_t dst, src;
 677         SDEBUG("   src1: ");
 678         dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
 679         SDEBUG("   src2: ");
 680         src = atom_get_src(ctx, attr, ptr);
 681         if (src != 0) {
 682                 ctx->ctx->divmul[0] = dst / src;
 683                 ctx->ctx->divmul[1] = dst % src;
 684         } else {
 685                 ctx->ctx->divmul[0] = 0;
 686                 ctx->ctx->divmul[1] = 0;
 687         }
 688 }
 689 
 690 static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
 691 {
 692         /* functionally, a nop */
 693 }
 694 
 695 static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
 696 {
 697         int execute = 0, target = U16(*ptr);
 698         unsigned long cjiffies;
 699 
 700         (*ptr) += 2;
 701         switch (arg) {
 702         case ATOM_COND_ABOVE:
 703                 execute = ctx->ctx->cs_above;
 704                 break;
 705         case ATOM_COND_ABOVEOREQUAL:
 706                 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
 707                 break;
 708         case ATOM_COND_ALWAYS:
 709                 execute = 1;
 710                 break;
 711         case ATOM_COND_BELOW:
 712                 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
 713                 break;
 714         case ATOM_COND_BELOWOREQUAL:
 715                 execute = !ctx->ctx->cs_above;
 716                 break;
 717         case ATOM_COND_EQUAL:
 718                 execute = ctx->ctx->cs_equal;
 719                 break;
 720         case ATOM_COND_NOTEQUAL:
 721                 execute = !ctx->ctx->cs_equal;
 722                 break;
 723         }
 724         if (arg != ATOM_COND_ALWAYS)
 725                 SDEBUG("   taken: %s\n", execute ? "yes" : "no");
 726         SDEBUG("   target: 0x%04X\n", target);
 727         if (execute) {
 728                 if (ctx->last_jump == (ctx->start + target)) {
 729                         cjiffies = jiffies;
 730                         if (time_after(cjiffies, ctx->last_jump_jiffies)) {
 731                                 cjiffies -= ctx->last_jump_jiffies;
 732                                 if ((jiffies_to_msecs(cjiffies) > 5000)) {
 733                                         DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n");
 734                                         ctx->abort = true;
 735                                 }
 736                         } else {
 737                                 /* jiffies wrap around we will just wait a little longer */
 738                                 ctx->last_jump_jiffies = jiffies;
 739                         }
 740                 } else {
 741                         ctx->last_jump = ctx->start + target;
 742                         ctx->last_jump_jiffies = jiffies;
 743                 }
 744                 *ptr = ctx->start + target;
 745         }
 746 }
 747 
 748 static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
 749 {
 750         uint8_t attr = U8((*ptr)++);
 751         uint32_t dst, mask, src, saved;
 752         int dptr = *ptr;
 753         SDEBUG("   dst: ");
 754         dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
 755         mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
 756         SDEBUG("   mask: 0x%08x", mask);
 757         SDEBUG("   src: ");
 758         src = atom_get_src(ctx, attr, ptr);
 759         dst &= mask;
 760         dst |= src;
 761         SDEBUG("   dst: ");
 762         atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
 763 }
 764 
 765 static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
 766 {
 767         uint8_t attr = U8((*ptr)++);
 768         uint32_t src, saved;
 769         int dptr = *ptr;
 770         if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
 771                 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
 772         else {
 773                 atom_skip_dst(ctx, arg, attr, ptr);
 774                 saved = 0xCDCDCDCD;
 775         }
 776         SDEBUG("   src: ");
 777         src = atom_get_src(ctx, attr, ptr);
 778         SDEBUG("   dst: ");
 779         atom_put_dst(ctx, arg, attr, &dptr, src, saved);
 780 }
 781 
 782 static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
 783 {
 784         uint8_t attr = U8((*ptr)++);
 785         uint32_t dst, src;
 786         SDEBUG("   src1: ");
 787         dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
 788         SDEBUG("   src2: ");
 789         src = atom_get_src(ctx, attr, ptr);
 790         ctx->ctx->divmul[0] = dst * src;
 791 }
 792 
 793 static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
 794 {
 795         /* nothing */
 796 }
 797 
 798 static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
 799 {
 800         uint8_t attr = U8((*ptr)++);
 801         uint32_t dst, src, saved;
 802         int dptr = *ptr;
 803         SDEBUG("   dst: ");
 804         dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
 805         SDEBUG("   src: ");
 806         src = atom_get_src(ctx, attr, ptr);
 807         dst |= src;
 808         SDEBUG("   dst: ");
 809         atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
 810 }
 811 
 812 static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
 813 {
 814         uint8_t val = U8((*ptr)++);
 815         SDEBUG("POST card output: 0x%02X\n", val);
 816 }
 817 
 818 static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
 819 {
 820         pr_info("unimplemented!\n");
 821 }
 822 
 823 static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
 824 {
 825         pr_info("unimplemented!\n");
 826 }
 827 
 828 static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
 829 {
 830         pr_info("unimplemented!\n");
 831 }
 832 
 833 static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
 834 {
 835         int idx = U8(*ptr);
 836         (*ptr)++;
 837         SDEBUG("   block: %d\n", idx);
 838         if (!idx)
 839                 ctx->ctx->data_block = 0;
 840         else if (idx == 255)
 841                 ctx->ctx->data_block = ctx->start;
 842         else
 843                 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
 844         SDEBUG("   base: 0x%04X\n", ctx->ctx->data_block);
 845 }
 846 
 847 static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
 848 {
 849         uint8_t attr = U8((*ptr)++);
 850         SDEBUG("   fb_base: ");
 851         ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
 852 }
 853 
 854 static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
 855 {
 856         int port;
 857         switch (arg) {
 858         case ATOM_PORT_ATI:
 859                 port = U16(*ptr);
 860                 if (port < ATOM_IO_NAMES_CNT)
 861                         SDEBUG("   port: %d (%s)\n", port, atom_io_names[port]);
 862                 else
 863                         SDEBUG("   port: %d\n", port);
 864                 if (!port)
 865                         ctx->ctx->io_mode = ATOM_IO_MM;
 866                 else
 867                         ctx->ctx->io_mode = ATOM_IO_IIO | port;
 868                 (*ptr) += 2;
 869                 break;
 870         case ATOM_PORT_PCI:
 871                 ctx->ctx->io_mode = ATOM_IO_PCI;
 872                 (*ptr)++;
 873                 break;
 874         case ATOM_PORT_SYSIO:
 875                 ctx->ctx->io_mode = ATOM_IO_SYSIO;
 876                 (*ptr)++;
 877                 break;
 878         }
 879 }
 880 
 881 static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
 882 {
 883         ctx->ctx->reg_block = U16(*ptr);
 884         (*ptr) += 2;
 885         SDEBUG("   base: 0x%04X\n", ctx->ctx->reg_block);
 886 }
 887 
 888 static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
 889 {
 890         uint8_t attr = U8((*ptr)++), shift;
 891         uint32_t saved, dst;
 892         int dptr = *ptr;
 893         attr &= 0x38;
 894         attr |= atom_def_dst[attr >> 3] << 6;
 895         SDEBUG("   dst: ");
 896         dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
 897         shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, 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 
 904 static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
 905 {
 906         uint8_t attr = U8((*ptr)++), shift;
 907         uint32_t saved, dst;
 908         int dptr = *ptr;
 909         attr &= 0x38;
 910         attr |= atom_def_dst[attr >> 3] << 6;
 911         SDEBUG("   dst: ");
 912         dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
 913         shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
 914         SDEBUG("   shift: %d\n", shift);
 915         dst >>= shift;
 916         SDEBUG("   dst: ");
 917         atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
 918 }
 919 
 920 static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
 921 {
 922         uint8_t attr = U8((*ptr)++), shift;
 923         uint32_t saved, dst;
 924         int dptr = *ptr;
 925         uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
 926         SDEBUG("   dst: ");
 927         dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
 928         /* op needs to full dst value */
 929         dst = saved;
 930         shift = atom_get_src(ctx, attr, ptr);
 931         SDEBUG("   shift: %d\n", shift);
 932         dst <<= shift;
 933         dst &= atom_arg_mask[dst_align];
 934         dst >>= atom_arg_shift[dst_align];
 935         SDEBUG("   dst: ");
 936         atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
 937 }
 938 
 939 static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
 940 {
 941         uint8_t attr = U8((*ptr)++), shift;
 942         uint32_t saved, dst;
 943         int dptr = *ptr;
 944         uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
 945         SDEBUG("   dst: ");
 946         dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
 947         /* op needs to full dst value */
 948         dst = saved;
 949         shift = atom_get_src(ctx, attr, ptr);
 950         SDEBUG("   shift: %d\n", shift);
 951         dst >>= shift;
 952         dst &= atom_arg_mask[dst_align];
 953         dst >>= atom_arg_shift[dst_align];
 954         SDEBUG("   dst: ");
 955         atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
 956 }
 957 
 958 static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
 959 {
 960         uint8_t attr = U8((*ptr)++);
 961         uint32_t dst, src, saved;
 962         int dptr = *ptr;
 963         SDEBUG("   dst: ");
 964         dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
 965         SDEBUG("   src: ");
 966         src = atom_get_src(ctx, attr, ptr);
 967         dst -= src;
 968         SDEBUG("   dst: ");
 969         atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
 970 }
 971 
 972 static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
 973 {
 974         uint8_t attr = U8((*ptr)++);
 975         uint32_t src, val, target;
 976         SDEBUG("   switch: ");
 977         src = atom_get_src(ctx, attr, ptr);
 978         while (U16(*ptr) != ATOM_CASE_END)
 979                 if (U8(*ptr) == ATOM_CASE_MAGIC) {
 980                         (*ptr)++;
 981                         SDEBUG("   case: ");
 982                         val =
 983                             atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
 984                                          ptr);
 985                         target = U16(*ptr);
 986                         if (val == src) {
 987                                 SDEBUG("   target: %04X\n", target);
 988                                 *ptr = ctx->start + target;
 989                                 return;
 990                         }
 991                         (*ptr) += 2;
 992                 } else {
 993                         pr_info("Bad case\n");
 994                         return;
 995                 }
 996         (*ptr) += 2;
 997 }
 998 
 999 static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
1000 {
1001         uint8_t attr = U8((*ptr)++);
1002         uint32_t dst, src;
1003         SDEBUG("   src1: ");
1004         dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
1005         SDEBUG("   src2: ");
1006         src = atom_get_src(ctx, attr, ptr);
1007         ctx->ctx->cs_equal = ((dst & src) == 0);
1008         SDEBUG("   result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
1009 }
1010 
1011 static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
1012 {
1013         uint8_t attr = U8((*ptr)++);
1014         uint32_t dst, src, saved;
1015         int dptr = *ptr;
1016         SDEBUG("   dst: ");
1017         dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1018         SDEBUG("   src: ");
1019         src = atom_get_src(ctx, attr, ptr);
1020         dst ^= src;
1021         SDEBUG("   dst: ");
1022         atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1023 }
1024 
1025 static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1026 {
1027         pr_info("unimplemented!\n");
1028 }
1029 
1030 static struct {
1031         void (*func) (atom_exec_context *, int *, int);
1032         int arg;
1033 } opcode_table[ATOM_OP_CNT] = {
1034         {
1035         NULL, 0}, {
1036         atom_op_move, ATOM_ARG_REG}, {
1037         atom_op_move, ATOM_ARG_PS}, {
1038         atom_op_move, ATOM_ARG_WS}, {
1039         atom_op_move, ATOM_ARG_FB}, {
1040         atom_op_move, ATOM_ARG_PLL}, {
1041         atom_op_move, ATOM_ARG_MC}, {
1042         atom_op_and, ATOM_ARG_REG}, {
1043         atom_op_and, ATOM_ARG_PS}, {
1044         atom_op_and, ATOM_ARG_WS}, {
1045         atom_op_and, ATOM_ARG_FB}, {
1046         atom_op_and, ATOM_ARG_PLL}, {
1047         atom_op_and, ATOM_ARG_MC}, {
1048         atom_op_or, ATOM_ARG_REG}, {
1049         atom_op_or, ATOM_ARG_PS}, {
1050         atom_op_or, ATOM_ARG_WS}, {
1051         atom_op_or, ATOM_ARG_FB}, {
1052         atom_op_or, ATOM_ARG_PLL}, {
1053         atom_op_or, ATOM_ARG_MC}, {
1054         atom_op_shift_left, ATOM_ARG_REG}, {
1055         atom_op_shift_left, ATOM_ARG_PS}, {
1056         atom_op_shift_left, ATOM_ARG_WS}, {
1057         atom_op_shift_left, ATOM_ARG_FB}, {
1058         atom_op_shift_left, ATOM_ARG_PLL}, {
1059         atom_op_shift_left, ATOM_ARG_MC}, {
1060         atom_op_shift_right, ATOM_ARG_REG}, {
1061         atom_op_shift_right, ATOM_ARG_PS}, {
1062         atom_op_shift_right, ATOM_ARG_WS}, {
1063         atom_op_shift_right, ATOM_ARG_FB}, {
1064         atom_op_shift_right, ATOM_ARG_PLL}, {
1065         atom_op_shift_right, ATOM_ARG_MC}, {
1066         atom_op_mul, ATOM_ARG_REG}, {
1067         atom_op_mul, ATOM_ARG_PS}, {
1068         atom_op_mul, ATOM_ARG_WS}, {
1069         atom_op_mul, ATOM_ARG_FB}, {
1070         atom_op_mul, ATOM_ARG_PLL}, {
1071         atom_op_mul, ATOM_ARG_MC}, {
1072         atom_op_div, ATOM_ARG_REG}, {
1073         atom_op_div, ATOM_ARG_PS}, {
1074         atom_op_div, ATOM_ARG_WS}, {
1075         atom_op_div, ATOM_ARG_FB}, {
1076         atom_op_div, ATOM_ARG_PLL}, {
1077         atom_op_div, ATOM_ARG_MC}, {
1078         atom_op_add, ATOM_ARG_REG}, {
1079         atom_op_add, ATOM_ARG_PS}, {
1080         atom_op_add, ATOM_ARG_WS}, {
1081         atom_op_add, ATOM_ARG_FB}, {
1082         atom_op_add, ATOM_ARG_PLL}, {
1083         atom_op_add, ATOM_ARG_MC}, {
1084         atom_op_sub, ATOM_ARG_REG}, {
1085         atom_op_sub, ATOM_ARG_PS}, {
1086         atom_op_sub, ATOM_ARG_WS}, {
1087         atom_op_sub, ATOM_ARG_FB}, {
1088         atom_op_sub, ATOM_ARG_PLL}, {
1089         atom_op_sub, ATOM_ARG_MC}, {
1090         atom_op_setport, ATOM_PORT_ATI}, {
1091         atom_op_setport, ATOM_PORT_PCI}, {
1092         atom_op_setport, ATOM_PORT_SYSIO}, {
1093         atom_op_setregblock, 0}, {
1094         atom_op_setfbbase, 0}, {
1095         atom_op_compare, ATOM_ARG_REG}, {
1096         atom_op_compare, ATOM_ARG_PS}, {
1097         atom_op_compare, ATOM_ARG_WS}, {
1098         atom_op_compare, ATOM_ARG_FB}, {
1099         atom_op_compare, ATOM_ARG_PLL}, {
1100         atom_op_compare, ATOM_ARG_MC}, {
1101         atom_op_switch, 0}, {
1102         atom_op_jump, ATOM_COND_ALWAYS}, {
1103         atom_op_jump, ATOM_COND_EQUAL}, {
1104         atom_op_jump, ATOM_COND_BELOW}, {
1105         atom_op_jump, ATOM_COND_ABOVE}, {
1106         atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1107         atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1108         atom_op_jump, ATOM_COND_NOTEQUAL}, {
1109         atom_op_test, ATOM_ARG_REG}, {
1110         atom_op_test, ATOM_ARG_PS}, {
1111         atom_op_test, ATOM_ARG_WS}, {
1112         atom_op_test, ATOM_ARG_FB}, {
1113         atom_op_test, ATOM_ARG_PLL}, {
1114         atom_op_test, ATOM_ARG_MC}, {
1115         atom_op_delay, ATOM_UNIT_MILLISEC}, {
1116         atom_op_delay, ATOM_UNIT_MICROSEC}, {
1117         atom_op_calltable, 0}, {
1118         atom_op_repeat, 0}, {
1119         atom_op_clear, ATOM_ARG_REG}, {
1120         atom_op_clear, ATOM_ARG_PS}, {
1121         atom_op_clear, ATOM_ARG_WS}, {
1122         atom_op_clear, ATOM_ARG_FB}, {
1123         atom_op_clear, ATOM_ARG_PLL}, {
1124         atom_op_clear, ATOM_ARG_MC}, {
1125         atom_op_nop, 0}, {
1126         atom_op_eot, 0}, {
1127         atom_op_mask, ATOM_ARG_REG}, {
1128         atom_op_mask, ATOM_ARG_PS}, {
1129         atom_op_mask, ATOM_ARG_WS}, {
1130         atom_op_mask, ATOM_ARG_FB}, {
1131         atom_op_mask, ATOM_ARG_PLL}, {
1132         atom_op_mask, ATOM_ARG_MC}, {
1133         atom_op_postcard, 0}, {
1134         atom_op_beep, 0}, {
1135         atom_op_savereg, 0}, {
1136         atom_op_restorereg, 0}, {
1137         atom_op_setdatablock, 0}, {
1138         atom_op_xor, ATOM_ARG_REG}, {
1139         atom_op_xor, ATOM_ARG_PS}, {
1140         atom_op_xor, ATOM_ARG_WS}, {
1141         atom_op_xor, ATOM_ARG_FB}, {
1142         atom_op_xor, ATOM_ARG_PLL}, {
1143         atom_op_xor, ATOM_ARG_MC}, {
1144         atom_op_shl, ATOM_ARG_REG}, {
1145         atom_op_shl, ATOM_ARG_PS}, {
1146         atom_op_shl, ATOM_ARG_WS}, {
1147         atom_op_shl, ATOM_ARG_FB}, {
1148         atom_op_shl, ATOM_ARG_PLL}, {
1149         atom_op_shl, ATOM_ARG_MC}, {
1150         atom_op_shr, ATOM_ARG_REG}, {
1151         atom_op_shr, ATOM_ARG_PS}, {
1152         atom_op_shr, ATOM_ARG_WS}, {
1153         atom_op_shr, ATOM_ARG_FB}, {
1154         atom_op_shr, ATOM_ARG_PLL}, {
1155         atom_op_shr, ATOM_ARG_MC}, {
1156 atom_op_debug, 0},};
1157 
1158 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params)
1159 {
1160         int base = CU16(ctx->cmd_table + 4 + 2 * index);
1161         int len, ws, ps, ptr;
1162         unsigned char op;
1163         atom_exec_context ectx;
1164         int ret = 0;
1165 
1166         if (!base)
1167                 return -EINVAL;
1168 
1169         len = CU16(base + ATOM_CT_SIZE_PTR);
1170         ws = CU8(base + ATOM_CT_WS_PTR);
1171         ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1172         ptr = base + ATOM_CT_CODE_PTR;
1173 
1174         SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1175 
1176         ectx.ctx = ctx;
1177         ectx.ps_shift = ps / 4;
1178         ectx.start = base;
1179         ectx.ps = params;
1180         ectx.abort = false;
1181         ectx.last_jump = 0;
1182         if (ws)
1183                 ectx.ws = kcalloc(4, ws, GFP_KERNEL);
1184         else
1185                 ectx.ws = NULL;
1186 
1187         debug_depth++;
1188         while (1) {
1189                 op = CU8(ptr++);
1190                 if (op < ATOM_OP_NAMES_CNT)
1191                         SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1192                 else
1193                         SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
1194                 if (ectx.abort) {
1195                         DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1196                                 base, len, ws, ps, ptr - 1);
1197                         ret = -EINVAL;
1198                         goto free;
1199                 }
1200 
1201                 if (op < ATOM_OP_CNT && op > 0)
1202                         opcode_table[op].func(&ectx, &ptr,
1203                                               opcode_table[op].arg);
1204                 else
1205                         break;
1206 
1207                 if (op == ATOM_OP_EOT)
1208                         break;
1209         }
1210         debug_depth--;
1211         SDEBUG("<<\n");
1212 
1213 free:
1214         if (ws)
1215                 kfree(ectx.ws);
1216         return ret;
1217 }
1218 
1219 int atom_execute_table_scratch_unlocked(struct atom_context *ctx, int index, uint32_t * params)
1220 {
1221         int r;
1222 
1223         mutex_lock(&ctx->mutex);
1224         /* reset data block */
1225         ctx->data_block = 0;
1226         /* reset reg block */
1227         ctx->reg_block = 0;
1228         /* reset fb window */
1229         ctx->fb_base = 0;
1230         /* reset io mode */
1231         ctx->io_mode = ATOM_IO_MM;
1232         /* reset divmul */
1233         ctx->divmul[0] = 0;
1234         ctx->divmul[1] = 0;
1235         r = atom_execute_table_locked(ctx, index, params);
1236         mutex_unlock(&ctx->mutex);
1237         return r;
1238 }
1239 
1240 int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
1241 {
1242         int r;
1243         mutex_lock(&ctx->scratch_mutex);
1244         r = atom_execute_table_scratch_unlocked(ctx, index, params);
1245         mutex_unlock(&ctx->scratch_mutex);
1246         return r;
1247 }
1248 
1249 static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1250 
1251 static void atom_index_iio(struct atom_context *ctx, int base)
1252 {
1253         ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1254         if (!ctx->iio)
1255                 return;
1256         while (CU8(base) == ATOM_IIO_START) {
1257                 ctx->iio[CU8(base + 1)] = base + 2;
1258                 base += 2;
1259                 while (CU8(base) != ATOM_IIO_END)
1260                         base += atom_iio_len[CU8(base)];
1261                 base += 3;
1262         }
1263 }
1264 
1265 struct atom_context *atom_parse(struct card_info *card, void *bios)
1266 {
1267         int base;
1268         struct atom_context *ctx =
1269             kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1270         char *str;
1271         char name[512];
1272         int i;
1273 
1274         if (!ctx)
1275                 return NULL;
1276 
1277         ctx->card = card;
1278         ctx->bios = bios;
1279 
1280         if (CU16(0) != ATOM_BIOS_MAGIC) {
1281                 pr_info("Invalid BIOS magic\n");
1282                 kfree(ctx);
1283                 return NULL;
1284         }
1285         if (strncmp
1286             (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1287              strlen(ATOM_ATI_MAGIC))) {
1288                 pr_info("Invalid ATI magic\n");
1289                 kfree(ctx);
1290                 return NULL;
1291         }
1292 
1293         base = CU16(ATOM_ROM_TABLE_PTR);
1294         if (strncmp
1295             (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1296              strlen(ATOM_ROM_MAGIC))) {
1297                 pr_info("Invalid ATOM magic\n");
1298                 kfree(ctx);
1299                 return NULL;
1300         }
1301 
1302         ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1303         ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1304         atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1305         if (!ctx->iio) {
1306                 atom_destroy(ctx);
1307                 return NULL;
1308         }
1309 
1310         str = CSTR(CU16(base + ATOM_ROM_MSG_PTR));
1311         while (*str && ((*str == '\n') || (*str == '\r')))
1312                 str++;
1313         /* name string isn't always 0 terminated */
1314         for (i = 0; i < 511; i++) {
1315                 name[i] = str[i];
1316                 if (name[i] < '.' || name[i] > 'z') {
1317                         name[i] = 0;
1318                         break;
1319                 }
1320         }
1321         pr_info("ATOM BIOS: %s\n", name);
1322 
1323         return ctx;
1324 }
1325 
1326 int atom_asic_init(struct atom_context *ctx)
1327 {
1328         struct radeon_device *rdev = ctx->card->dev->dev_private;
1329         int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1330         uint32_t ps[16];
1331         int ret;
1332 
1333         memset(ps, 0, 64);
1334 
1335         ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1336         ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1337         if (!ps[0] || !ps[1])
1338                 return 1;
1339 
1340         if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1341                 return 1;
1342         ret = atom_execute_table(ctx, ATOM_CMD_INIT, ps);
1343         if (ret)
1344                 return ret;
1345 
1346         memset(ps, 0, 64);
1347 
1348         if (rdev->family < CHIP_R600) {
1349                 if (CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_SPDFANCNTL))
1350                         atom_execute_table(ctx, ATOM_CMD_SPDFANCNTL, ps);
1351         }
1352         return ret;
1353 }
1354 
1355 void atom_destroy(struct atom_context *ctx)
1356 {
1357         kfree(ctx->iio);
1358         kfree(ctx);
1359 }
1360 
1361 bool atom_parse_data_header(struct atom_context *ctx, int index,
1362                             uint16_t * size, uint8_t * frev, uint8_t * crev,
1363                             uint16_t * data_start)
1364 {
1365         int offset = index * 2 + 4;
1366         int idx = CU16(ctx->data_table + offset);
1367         u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1368 
1369         if (!mdt[index])
1370                 return false;
1371 
1372         if (size)
1373                 *size = CU16(idx);
1374         if (frev)
1375                 *frev = CU8(idx + 2);
1376         if (crev)
1377                 *crev = CU8(idx + 3);
1378         *data_start = idx;
1379         return true;
1380 }
1381 
1382 bool atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev,
1383                            uint8_t * crev)
1384 {
1385         int offset = index * 2 + 4;
1386         int idx = CU16(ctx->cmd_table + offset);
1387         u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1388 
1389         if (!mct[index])
1390                 return false;
1391 
1392         if (frev)
1393                 *frev = CU8(idx + 2);
1394         if (crev)
1395                 *crev = CU8(idx + 3);
1396         return true;
1397 }
1398 
1399 int atom_allocate_fb_scratch(struct atom_context *ctx)
1400 {
1401         int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
1402         uint16_t data_offset;
1403         int usage_bytes = 0;
1404         struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1405 
1406         if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
1407                 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
1408 
1409                 DRM_DEBUG("atom firmware requested %08x %dkb\n",
1410                           le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
1411                           le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));
1412 
1413                 usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
1414         }
1415         ctx->scratch_size_bytes = 0;
1416         if (usage_bytes == 0)
1417                 usage_bytes = 20 * 1024;
1418         /* allocate some scratch memory */
1419         ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
1420         if (!ctx->scratch)
1421                 return -ENOMEM;
1422         ctx->scratch_size_bytes = usage_bytes;
1423         return 0;
1424 }

/* [<][>][^][v][top][bottom][index][help] */