amdgpu_atom.c revision 1.2
1 /* $NetBSD: amdgpu_atom.c,v 1.2 2020/02/14 04:30:04 riastradh Exp $ */ 2 3 /* 4 * Copyright 2008 Advanced Micro Devices, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Author: Stanislaw Skowronek 25 */ 26 27 #include <sys/cdefs.h> 28 __KERNEL_RCSID(0, "$NetBSD: amdgpu_atom.c,v 1.2 2020/02/14 04:30:04 riastradh Exp $"); 29 30 #include <linux/module.h> 31 #include <linux/sched.h> 32 #include <linux/slab.h> 33 #include <asm/unaligned.h> 34 #include <asm/byteorder.h> 35 36 #define ATOM_DEBUG 37 38 #include "atom.h" 39 #include "atom-names.h" 40 #include "atom-bits.h" 41 #include "amdgpu.h" 42 43 #define ATOM_COND_ABOVE 0 44 #define ATOM_COND_ABOVEOREQUAL 1 45 #define ATOM_COND_ALWAYS 2 46 #define ATOM_COND_BELOW 3 47 #define ATOM_COND_BELOWOREQUAL 4 48 #define ATOM_COND_EQUAL 5 49 #define ATOM_COND_NOTEQUAL 6 50 51 #define ATOM_PORT_ATI 0 52 #define ATOM_PORT_PCI 1 53 #define ATOM_PORT_SYSIO 2 54 55 #define ATOM_UNIT_MICROSEC 0 56 #define ATOM_UNIT_MILLISEC 1 57 58 #define PLL_INDEX 2 59 #define PLL_DATA 3 60 61 typedef struct { 62 struct atom_context *ctx; 63 uint32_t *ps, *ws; 64 int ps_shift; 65 uint16_t start; 66 unsigned last_jump; 67 unsigned long last_jump_jiffies; 68 bool abort; 69 } atom_exec_context; 70 71 int amdgpu_atom_debug = 0; 72 static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params); 73 int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t * params); 74 75 static uint32_t atom_arg_mask[8] = 76 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000, 77 0xFF000000 }; 78 static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 }; 79 80 static int atom_dst_to_src[8][4] = { 81 /* translate destination alignment field to the source alignment encoding */ 82 {0, 0, 0, 0}, 83 {1, 2, 3, 0}, 84 {1, 2, 3, 0}, 85 {1, 2, 3, 0}, 86 {4, 5, 6, 7}, 87 {4, 5, 6, 7}, 88 {4, 5, 6, 7}, 89 {4, 5, 6, 7}, 90 }; 91 static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 }; 92 93 static int debug_depth = 0; 94 #undef DEBUG /* XXX NetBSD kludge */ 95 #ifdef ATOM_DEBUG 96 static void debug_print_spaces(int n) 97 { 98 while (n--) 99 printk(" "); 100 } 101 102 #define DEBUG(...) do if (amdgpu_atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0) 103 #define SDEBUG(...) do if (amdgpu_atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0) 104 #else 105 #define DEBUG(...) do { } while (0) 106 #define SDEBUG(...) do { } while (0) 107 #endif 108 109 static uint32_t atom_iio_execute(struct atom_context *ctx, int base, 110 uint32_t index, uint32_t data) 111 { 112 uint32_t temp = 0xCDCDCDCD; 113 114 while (1) 115 switch (CU8(base)) { 116 case ATOM_IIO_NOP: 117 base++; 118 break; 119 case ATOM_IIO_READ: 120 temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1)); 121 base += 3; 122 break; 123 case ATOM_IIO_WRITE: 124 ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp); 125 base += 3; 126 break; 127 case ATOM_IIO_CLEAR: 128 temp &= 129 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 130 CU8(base + 2)); 131 base += 3; 132 break; 133 case ATOM_IIO_SET: 134 temp |= 135 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base + 136 2); 137 base += 3; 138 break; 139 case ATOM_IIO_MOVE_INDEX: 140 temp &= 141 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 142 CU8(base + 3)); 143 temp |= 144 ((index >> CU8(base + 2)) & 145 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 146 3); 147 base += 4; 148 break; 149 case ATOM_IIO_MOVE_DATA: 150 temp &= 151 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 152 CU8(base + 3)); 153 temp |= 154 ((data >> CU8(base + 2)) & 155 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base + 156 3); 157 base += 4; 158 break; 159 case ATOM_IIO_MOVE_ATTR: 160 temp &= 161 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) << 162 CU8(base + 3)); 163 temp |= 164 ((ctx-> 165 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 - 166 CU8 167 (base 168 + 169 1)))) 170 << CU8(base + 3); 171 base += 4; 172 break; 173 case ATOM_IIO_END: 174 return temp; 175 default: 176 printk(KERN_INFO "Unknown IIO opcode.\n"); 177 return 0; 178 } 179 } 180 181 static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr, 182 int *ptr, uint32_t *saved, int print) 183 { 184 uint32_t idx, val = 0xCDCDCDCD, align, arg; 185 struct atom_context *gctx = ctx->ctx; 186 arg = attr & 7; 187 align = (attr >> 3) & 7; 188 switch (arg) { 189 case ATOM_ARG_REG: 190 idx = U16(*ptr); 191 (*ptr) += 2; 192 if (print) 193 DEBUG("REG[0x%04X]", idx); 194 idx += gctx->reg_block; 195 switch (gctx->io_mode) { 196 case ATOM_IO_MM: 197 val = gctx->card->reg_read(gctx->card, idx); 198 break; 199 case ATOM_IO_PCI: 200 printk(KERN_INFO 201 "PCI registers are not implemented.\n"); 202 return 0; 203 case ATOM_IO_SYSIO: 204 printk(KERN_INFO 205 "SYSIO registers are not implemented.\n"); 206 return 0; 207 default: 208 if (!(gctx->io_mode & 0x80)) { 209 printk(KERN_INFO "Bad IO mode.\n"); 210 return 0; 211 } 212 if (!gctx->iio[gctx->io_mode & 0x7F]) { 213 printk(KERN_INFO 214 "Undefined indirect IO read method %d.\n", 215 gctx->io_mode & 0x7F); 216 return 0; 217 } 218 val = 219 atom_iio_execute(gctx, 220 gctx->iio[gctx->io_mode & 0x7F], 221 idx, 0); 222 } 223 break; 224 case ATOM_ARG_PS: 225 idx = U8(*ptr); 226 (*ptr)++; 227 /* get_unaligned_le32 avoids unaligned accesses from atombios 228 * tables, noticed on a DEC Alpha. */ 229 val = get_unaligned_le32((u32 *)&ctx->ps[idx]); 230 if (print) 231 DEBUG("PS[0x%02X,0x%04X]", idx, val); 232 break; 233 case ATOM_ARG_WS: 234 idx = U8(*ptr); 235 (*ptr)++; 236 if (print) 237 DEBUG("WS[0x%02X]", idx); 238 switch (idx) { 239 case ATOM_WS_QUOTIENT: 240 val = gctx->divmul[0]; 241 break; 242 case ATOM_WS_REMAINDER: 243 val = gctx->divmul[1]; 244 break; 245 case ATOM_WS_DATAPTR: 246 val = gctx->data_block; 247 break; 248 case ATOM_WS_SHIFT: 249 val = gctx->shift; 250 break; 251 case ATOM_WS_OR_MASK: 252 val = 1 << gctx->shift; 253 break; 254 case ATOM_WS_AND_MASK: 255 val = ~(1 << gctx->shift); 256 break; 257 case ATOM_WS_FB_WINDOW: 258 val = gctx->fb_base; 259 break; 260 case ATOM_WS_ATTRIBUTES: 261 val = gctx->io_attr; 262 break; 263 case ATOM_WS_REGPTR: 264 val = gctx->reg_block; 265 break; 266 default: 267 val = ctx->ws[idx]; 268 } 269 break; 270 case ATOM_ARG_ID: 271 idx = U16(*ptr); 272 (*ptr) += 2; 273 if (print) { 274 if (gctx->data_block) 275 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block); 276 else 277 DEBUG("ID[0x%04X]", idx); 278 } 279 val = U32(idx + gctx->data_block); 280 break; 281 case ATOM_ARG_FB: 282 idx = U8(*ptr); 283 (*ptr)++; 284 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) { 285 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n", 286 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes); 287 val = 0; 288 } else 289 val = gctx->scratch[(gctx->fb_base / 4) + idx]; 290 if (print) 291 DEBUG("FB[0x%02X]", idx); 292 break; 293 case ATOM_ARG_IMM: 294 switch (align) { 295 case ATOM_SRC_DWORD: 296 val = U32(*ptr); 297 (*ptr) += 4; 298 if (print) 299 DEBUG("IMM 0x%08X\n", val); 300 return val; 301 case ATOM_SRC_WORD0: 302 case ATOM_SRC_WORD8: 303 case ATOM_SRC_WORD16: 304 val = U16(*ptr); 305 (*ptr) += 2; 306 if (print) 307 DEBUG("IMM 0x%04X\n", val); 308 return val; 309 case ATOM_SRC_BYTE0: 310 case ATOM_SRC_BYTE8: 311 case ATOM_SRC_BYTE16: 312 case ATOM_SRC_BYTE24: 313 val = U8(*ptr); 314 (*ptr)++; 315 if (print) 316 DEBUG("IMM 0x%02X\n", val); 317 return val; 318 } 319 return 0; 320 case ATOM_ARG_PLL: 321 idx = U8(*ptr); 322 (*ptr)++; 323 if (print) 324 DEBUG("PLL[0x%02X]", idx); 325 val = gctx->card->pll_read(gctx->card, idx); 326 break; 327 case ATOM_ARG_MC: 328 idx = U8(*ptr); 329 (*ptr)++; 330 if (print) 331 DEBUG("MC[0x%02X]", idx); 332 val = gctx->card->mc_read(gctx->card, idx); 333 break; 334 } 335 if (saved) 336 *saved = val; 337 val &= atom_arg_mask[align]; 338 val >>= atom_arg_shift[align]; 339 if (print) 340 switch (align) { 341 case ATOM_SRC_DWORD: 342 DEBUG(".[31:0] -> 0x%08X\n", val); 343 break; 344 case ATOM_SRC_WORD0: 345 DEBUG(".[15:0] -> 0x%04X\n", val); 346 break; 347 case ATOM_SRC_WORD8: 348 DEBUG(".[23:8] -> 0x%04X\n", val); 349 break; 350 case ATOM_SRC_WORD16: 351 DEBUG(".[31:16] -> 0x%04X\n", val); 352 break; 353 case ATOM_SRC_BYTE0: 354 DEBUG(".[7:0] -> 0x%02X\n", val); 355 break; 356 case ATOM_SRC_BYTE8: 357 DEBUG(".[15:8] -> 0x%02X\n", val); 358 break; 359 case ATOM_SRC_BYTE16: 360 DEBUG(".[23:16] -> 0x%02X\n", val); 361 break; 362 case ATOM_SRC_BYTE24: 363 DEBUG(".[31:24] -> 0x%02X\n", val); 364 break; 365 } 366 return val; 367 } 368 369 static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr) 370 { 371 uint32_t align = (attr >> 3) & 7, arg = attr & 7; 372 switch (arg) { 373 case ATOM_ARG_REG: 374 case ATOM_ARG_ID: 375 (*ptr) += 2; 376 break; 377 case ATOM_ARG_PLL: 378 case ATOM_ARG_MC: 379 case ATOM_ARG_PS: 380 case ATOM_ARG_WS: 381 case ATOM_ARG_FB: 382 (*ptr)++; 383 break; 384 case ATOM_ARG_IMM: 385 switch (align) { 386 case ATOM_SRC_DWORD: 387 (*ptr) += 4; 388 return; 389 case ATOM_SRC_WORD0: 390 case ATOM_SRC_WORD8: 391 case ATOM_SRC_WORD16: 392 (*ptr) += 2; 393 return; 394 case ATOM_SRC_BYTE0: 395 case ATOM_SRC_BYTE8: 396 case ATOM_SRC_BYTE16: 397 case ATOM_SRC_BYTE24: 398 (*ptr)++; 399 return; 400 } 401 return; 402 } 403 } 404 405 static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr) 406 { 407 return atom_get_src_int(ctx, attr, ptr, NULL, 1); 408 } 409 410 static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr) 411 { 412 uint32_t val = 0xCDCDCDCD; 413 414 switch (align) { 415 case ATOM_SRC_DWORD: 416 val = U32(*ptr); 417 (*ptr) += 4; 418 break; 419 case ATOM_SRC_WORD0: 420 case ATOM_SRC_WORD8: 421 case ATOM_SRC_WORD16: 422 val = U16(*ptr); 423 (*ptr) += 2; 424 break; 425 case ATOM_SRC_BYTE0: 426 case ATOM_SRC_BYTE8: 427 case ATOM_SRC_BYTE16: 428 case ATOM_SRC_BYTE24: 429 val = U8(*ptr); 430 (*ptr)++; 431 break; 432 } 433 return val; 434 } 435 436 static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr, 437 int *ptr, uint32_t *saved, int print) 438 { 439 return atom_get_src_int(ctx, 440 arg | atom_dst_to_src[(attr >> 3) & 441 7][(attr >> 6) & 3] << 3, 442 ptr, saved, print); 443 } 444 445 static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr) 446 { 447 atom_skip_src_int(ctx, 448 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 449 3] << 3, ptr); 450 } 451 452 static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr, 453 int *ptr, uint32_t val, uint32_t saved) 454 { 455 uint32_t align = 456 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val = 457 val, idx; 458 struct atom_context *gctx = ctx->ctx; 459 old_val &= atom_arg_mask[align] >> atom_arg_shift[align]; 460 val <<= atom_arg_shift[align]; 461 val &= atom_arg_mask[align]; 462 saved &= ~atom_arg_mask[align]; 463 val |= saved; 464 switch (arg) { 465 case ATOM_ARG_REG: 466 idx = U16(*ptr); 467 (*ptr) += 2; 468 DEBUG("REG[0x%04X]", idx); 469 idx += gctx->reg_block; 470 switch (gctx->io_mode) { 471 case ATOM_IO_MM: 472 if (idx == 0) 473 gctx->card->reg_write(gctx->card, idx, 474 val << 2); 475 else 476 gctx->card->reg_write(gctx->card, idx, val); 477 break; 478 case ATOM_IO_PCI: 479 printk(KERN_INFO 480 "PCI registers are not implemented.\n"); 481 return; 482 case ATOM_IO_SYSIO: 483 printk(KERN_INFO 484 "SYSIO registers are not implemented.\n"); 485 return; 486 default: 487 if (!(gctx->io_mode & 0x80)) { 488 printk(KERN_INFO "Bad IO mode.\n"); 489 return; 490 } 491 if (!gctx->iio[gctx->io_mode & 0xFF]) { 492 printk(KERN_INFO 493 "Undefined indirect IO write method %d.\n", 494 gctx->io_mode & 0x7F); 495 return; 496 } 497 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF], 498 idx, val); 499 } 500 break; 501 case ATOM_ARG_PS: 502 idx = U8(*ptr); 503 (*ptr)++; 504 DEBUG("PS[0x%02X]", idx); 505 ctx->ps[idx] = cpu_to_le32(val); 506 break; 507 case ATOM_ARG_WS: 508 idx = U8(*ptr); 509 (*ptr)++; 510 DEBUG("WS[0x%02X]", idx); 511 switch (idx) { 512 case ATOM_WS_QUOTIENT: 513 gctx->divmul[0] = val; 514 break; 515 case ATOM_WS_REMAINDER: 516 gctx->divmul[1] = val; 517 break; 518 case ATOM_WS_DATAPTR: 519 gctx->data_block = val; 520 break; 521 case ATOM_WS_SHIFT: 522 gctx->shift = val; 523 break; 524 case ATOM_WS_OR_MASK: 525 case ATOM_WS_AND_MASK: 526 break; 527 case ATOM_WS_FB_WINDOW: 528 gctx->fb_base = val; 529 break; 530 case ATOM_WS_ATTRIBUTES: 531 gctx->io_attr = val; 532 break; 533 case ATOM_WS_REGPTR: 534 gctx->reg_block = val; 535 break; 536 default: 537 ctx->ws[idx] = val; 538 } 539 break; 540 case ATOM_ARG_FB: 541 idx = U8(*ptr); 542 (*ptr)++; 543 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) { 544 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n", 545 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes); 546 } else 547 gctx->scratch[(gctx->fb_base / 4) + idx] = val; 548 DEBUG("FB[0x%02X]", idx); 549 break; 550 case ATOM_ARG_PLL: 551 idx = U8(*ptr); 552 (*ptr)++; 553 DEBUG("PLL[0x%02X]", idx); 554 gctx->card->pll_write(gctx->card, idx, val); 555 break; 556 case ATOM_ARG_MC: 557 idx = U8(*ptr); 558 (*ptr)++; 559 DEBUG("MC[0x%02X]", idx); 560 gctx->card->mc_write(gctx->card, idx, val); 561 return; 562 } 563 switch (align) { 564 case ATOM_SRC_DWORD: 565 DEBUG(".[31:0] <- 0x%08X\n", old_val); 566 break; 567 case ATOM_SRC_WORD0: 568 DEBUG(".[15:0] <- 0x%04X\n", old_val); 569 break; 570 case ATOM_SRC_WORD8: 571 DEBUG(".[23:8] <- 0x%04X\n", old_val); 572 break; 573 case ATOM_SRC_WORD16: 574 DEBUG(".[31:16] <- 0x%04X\n", old_val); 575 break; 576 case ATOM_SRC_BYTE0: 577 DEBUG(".[7:0] <- 0x%02X\n", old_val); 578 break; 579 case ATOM_SRC_BYTE8: 580 DEBUG(".[15:8] <- 0x%02X\n", old_val); 581 break; 582 case ATOM_SRC_BYTE16: 583 DEBUG(".[23:16] <- 0x%02X\n", old_val); 584 break; 585 case ATOM_SRC_BYTE24: 586 DEBUG(".[31:24] <- 0x%02X\n", old_val); 587 break; 588 } 589 } 590 591 static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg) 592 { 593 uint8_t attr = U8((*ptr)++); 594 uint32_t dst, src, saved; 595 int dptr = *ptr; 596 SDEBUG(" dst: "); 597 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 598 SDEBUG(" src: "); 599 src = atom_get_src(ctx, attr, ptr); 600 dst += src; 601 SDEBUG(" dst: "); 602 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 603 } 604 605 static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg) 606 { 607 uint8_t attr = U8((*ptr)++); 608 uint32_t dst, src, saved; 609 int dptr = *ptr; 610 SDEBUG(" dst: "); 611 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 612 SDEBUG(" src: "); 613 src = atom_get_src(ctx, attr, ptr); 614 dst &= src; 615 SDEBUG(" dst: "); 616 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 617 } 618 619 static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg) 620 { 621 printk("ATOM BIOS beeped!\n"); 622 } 623 624 static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg) 625 { 626 int idx = U8((*ptr)++); 627 int r = 0; 628 629 if (idx < ATOM_TABLE_NAMES_CNT) 630 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]); 631 else 632 SDEBUG(" table: %d\n", idx); 633 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx)) 634 r = amdgpu_atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift); 635 if (r) { 636 ctx->abort = true; 637 } 638 } 639 640 static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg) 641 { 642 uint8_t attr = U8((*ptr)++); 643 uint32_t saved; 644 int dptr = *ptr; 645 attr &= 0x38; 646 attr |= atom_def_dst[attr >> 3] << 6; 647 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 648 SDEBUG(" dst: "); 649 atom_put_dst(ctx, arg, attr, &dptr, 0, saved); 650 } 651 652 static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg) 653 { 654 uint8_t attr = U8((*ptr)++); 655 uint32_t dst, src; 656 SDEBUG(" src1: "); 657 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 658 SDEBUG(" src2: "); 659 src = atom_get_src(ctx, attr, ptr); 660 ctx->ctx->cs_equal = (dst == src); 661 ctx->ctx->cs_above = (dst > src); 662 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE", 663 ctx->ctx->cs_above ? "GT" : "LE"); 664 } 665 666 static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg) 667 { 668 unsigned count = U8((*ptr)++); 669 SDEBUG(" count: %d\n", count); 670 if (arg == ATOM_UNIT_MICROSEC) 671 udelay(count); 672 else if (!drm_can_sleep()) 673 mdelay(count); 674 else 675 msleep(count); 676 } 677 678 static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg) 679 { 680 uint8_t attr = U8((*ptr)++); 681 uint32_t dst, src; 682 SDEBUG(" src1: "); 683 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 684 SDEBUG(" src2: "); 685 src = atom_get_src(ctx, attr, ptr); 686 if (src != 0) { 687 ctx->ctx->divmul[0] = dst / src; 688 ctx->ctx->divmul[1] = dst % src; 689 } else { 690 ctx->ctx->divmul[0] = 0; 691 ctx->ctx->divmul[1] = 0; 692 } 693 } 694 695 static void atom_op_div32(atom_exec_context *ctx, int *ptr, int arg) 696 { 697 uint64_t val64; 698 uint8_t attr = U8((*ptr)++); 699 uint32_t dst, src; 700 SDEBUG(" src1: "); 701 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 702 SDEBUG(" src2: "); 703 src = atom_get_src(ctx, attr, ptr); 704 if (src != 0) { 705 val64 = dst; 706 val64 |= ((uint64_t)ctx->ctx->divmul[1]) << 32; 707 do_div(val64, src); 708 ctx->ctx->divmul[0] = lower_32_bits(val64); 709 ctx->ctx->divmul[1] = upper_32_bits(val64); 710 } else { 711 ctx->ctx->divmul[0] = 0; 712 ctx->ctx->divmul[1] = 0; 713 } 714 } 715 716 static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg) 717 { 718 /* functionally, a nop */ 719 } 720 721 static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg) 722 { 723 int execute = 0, target = U16(*ptr); 724 unsigned long cjiffies; 725 726 (*ptr) += 2; 727 switch (arg) { 728 case ATOM_COND_ABOVE: 729 execute = ctx->ctx->cs_above; 730 break; 731 case ATOM_COND_ABOVEOREQUAL: 732 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal; 733 break; 734 case ATOM_COND_ALWAYS: 735 execute = 1; 736 break; 737 case ATOM_COND_BELOW: 738 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal); 739 break; 740 case ATOM_COND_BELOWOREQUAL: 741 execute = !ctx->ctx->cs_above; 742 break; 743 case ATOM_COND_EQUAL: 744 execute = ctx->ctx->cs_equal; 745 break; 746 case ATOM_COND_NOTEQUAL: 747 execute = !ctx->ctx->cs_equal; 748 break; 749 } 750 if (arg != ATOM_COND_ALWAYS) 751 SDEBUG(" taken: %s\n", execute ? "yes" : "no"); 752 SDEBUG(" target: 0x%04X\n", target); 753 if (execute) { 754 if (ctx->last_jump == (ctx->start + target)) { 755 cjiffies = jiffies; 756 if (time_after(cjiffies, ctx->last_jump_jiffies)) { 757 cjiffies -= ctx->last_jump_jiffies; 758 if ((jiffies_to_msecs(cjiffies) > 5000)) { 759 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n"); 760 ctx->abort = true; 761 } 762 } else { 763 /* jiffies wrap around we will just wait a little longer */ 764 ctx->last_jump_jiffies = jiffies; 765 } 766 } else { 767 ctx->last_jump = ctx->start + target; 768 ctx->last_jump_jiffies = jiffies; 769 } 770 *ptr = ctx->start + target; 771 } 772 } 773 774 static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg) 775 { 776 uint8_t attr = U8((*ptr)++); 777 uint32_t dst, mask, src, saved; 778 int dptr = *ptr; 779 SDEBUG(" dst: "); 780 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 781 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr); 782 SDEBUG(" mask: 0x%08x", mask); 783 SDEBUG(" src: "); 784 src = atom_get_src(ctx, attr, ptr); 785 dst &= mask; 786 dst |= src; 787 SDEBUG(" dst: "); 788 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 789 } 790 791 static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg) 792 { 793 uint8_t attr = U8((*ptr)++); 794 uint32_t src, saved; 795 int dptr = *ptr; 796 if (((attr >> 3) & 7) != ATOM_SRC_DWORD) 797 atom_get_dst(ctx, arg, attr, ptr, &saved, 0); 798 else { 799 atom_skip_dst(ctx, arg, attr, ptr); 800 saved = 0xCDCDCDCD; 801 } 802 SDEBUG(" src: "); 803 src = atom_get_src(ctx, attr, ptr); 804 SDEBUG(" dst: "); 805 atom_put_dst(ctx, arg, attr, &dptr, src, saved); 806 } 807 808 static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg) 809 { 810 uint8_t attr = U8((*ptr)++); 811 uint32_t dst, src; 812 SDEBUG(" src1: "); 813 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 814 SDEBUG(" src2: "); 815 src = atom_get_src(ctx, attr, ptr); 816 ctx->ctx->divmul[0] = dst * src; 817 } 818 819 static void atom_op_mul32(atom_exec_context *ctx, int *ptr, int arg) 820 { 821 uint64_t val64; 822 uint8_t attr = U8((*ptr)++); 823 uint32_t dst, src; 824 SDEBUG(" src1: "); 825 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 826 SDEBUG(" src2: "); 827 src = atom_get_src(ctx, attr, ptr); 828 val64 = (uint64_t)dst * (uint64_t)src; 829 ctx->ctx->divmul[0] = lower_32_bits(val64); 830 ctx->ctx->divmul[1] = upper_32_bits(val64); 831 } 832 833 static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg) 834 { 835 /* nothing */ 836 } 837 838 static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg) 839 { 840 uint8_t attr = U8((*ptr)++); 841 uint32_t dst, src, saved; 842 int dptr = *ptr; 843 SDEBUG(" dst: "); 844 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 845 SDEBUG(" src: "); 846 src = atom_get_src(ctx, attr, ptr); 847 dst |= src; 848 SDEBUG(" dst: "); 849 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 850 } 851 852 static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg) 853 { 854 uint8_t val = U8((*ptr)++); 855 SDEBUG("POST card output: 0x%02X\n", val); 856 } 857 858 static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg) 859 { 860 printk(KERN_INFO "unimplemented!\n"); 861 } 862 863 static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg) 864 { 865 printk(KERN_INFO "unimplemented!\n"); 866 } 867 868 static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg) 869 { 870 printk(KERN_INFO "unimplemented!\n"); 871 } 872 873 static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg) 874 { 875 int idx = U8(*ptr); 876 (*ptr)++; 877 SDEBUG(" block: %d\n", idx); 878 if (!idx) 879 ctx->ctx->data_block = 0; 880 else if (idx == 255) 881 ctx->ctx->data_block = ctx->start; 882 else 883 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx); 884 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block); 885 } 886 887 static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg) 888 { 889 uint8_t attr = U8((*ptr)++); 890 SDEBUG(" fb_base: "); 891 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr); 892 } 893 894 static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg) 895 { 896 int port; 897 switch (arg) { 898 case ATOM_PORT_ATI: 899 port = U16(*ptr); 900 if (port < ATOM_IO_NAMES_CNT) 901 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]); 902 else 903 SDEBUG(" port: %d\n", port); 904 if (!port) 905 ctx->ctx->io_mode = ATOM_IO_MM; 906 else 907 ctx->ctx->io_mode = ATOM_IO_IIO | port; 908 (*ptr) += 2; 909 break; 910 case ATOM_PORT_PCI: 911 ctx->ctx->io_mode = ATOM_IO_PCI; 912 (*ptr)++; 913 break; 914 case ATOM_PORT_SYSIO: 915 ctx->ctx->io_mode = ATOM_IO_SYSIO; 916 (*ptr)++; 917 break; 918 } 919 } 920 921 static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg) 922 { 923 ctx->ctx->reg_block = U16(*ptr); 924 (*ptr) += 2; 925 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block); 926 } 927 928 static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg) 929 { 930 uint8_t attr = U8((*ptr)++), shift; 931 uint32_t saved, dst; 932 int dptr = *ptr; 933 attr &= 0x38; 934 attr |= atom_def_dst[attr >> 3] << 6; 935 SDEBUG(" dst: "); 936 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 937 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr); 938 SDEBUG(" shift: %d\n", shift); 939 dst <<= shift; 940 SDEBUG(" dst: "); 941 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 942 } 943 944 static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg) 945 { 946 uint8_t attr = U8((*ptr)++), shift; 947 uint32_t saved, dst; 948 int dptr = *ptr; 949 attr &= 0x38; 950 attr |= atom_def_dst[attr >> 3] << 6; 951 SDEBUG(" dst: "); 952 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 953 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr); 954 SDEBUG(" shift: %d\n", shift); 955 dst >>= shift; 956 SDEBUG(" dst: "); 957 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 958 } 959 960 static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg) 961 { 962 uint8_t attr = U8((*ptr)++), shift; 963 uint32_t saved, dst; 964 int dptr = *ptr; 965 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3]; 966 SDEBUG(" dst: "); 967 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 968 /* op needs to full dst value */ 969 dst = saved; 970 shift = atom_get_src(ctx, attr, ptr); 971 SDEBUG(" shift: %d\n", shift); 972 dst <<= shift; 973 dst &= atom_arg_mask[dst_align]; 974 dst >>= atom_arg_shift[dst_align]; 975 SDEBUG(" dst: "); 976 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 977 } 978 979 static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg) 980 { 981 uint8_t attr = U8((*ptr)++), shift; 982 uint32_t saved, dst; 983 int dptr = *ptr; 984 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3]; 985 SDEBUG(" dst: "); 986 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 987 /* op needs to full dst value */ 988 dst = saved; 989 shift = atom_get_src(ctx, attr, ptr); 990 SDEBUG(" shift: %d\n", shift); 991 dst >>= shift; 992 dst &= atom_arg_mask[dst_align]; 993 dst >>= atom_arg_shift[dst_align]; 994 SDEBUG(" dst: "); 995 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 996 } 997 998 static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg) 999 { 1000 uint8_t attr = U8((*ptr)++); 1001 uint32_t dst, src, saved; 1002 int dptr = *ptr; 1003 SDEBUG(" dst: "); 1004 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 1005 SDEBUG(" src: "); 1006 src = atom_get_src(ctx, attr, ptr); 1007 dst -= src; 1008 SDEBUG(" dst: "); 1009 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 1010 } 1011 1012 static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg) 1013 { 1014 uint8_t attr = U8((*ptr)++); 1015 uint32_t src, val, target; 1016 SDEBUG(" switch: "); 1017 src = atom_get_src(ctx, attr, ptr); 1018 while (U16(*ptr) != ATOM_CASE_END) 1019 if (U8(*ptr) == ATOM_CASE_MAGIC) { 1020 (*ptr)++; 1021 SDEBUG(" case: "); 1022 val = 1023 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM, 1024 ptr); 1025 target = U16(*ptr); 1026 if (val == src) { 1027 SDEBUG(" target: %04X\n", target); 1028 *ptr = ctx->start + target; 1029 return; 1030 } 1031 (*ptr) += 2; 1032 } else { 1033 printk(KERN_INFO "Bad case.\n"); 1034 return; 1035 } 1036 (*ptr) += 2; 1037 } 1038 1039 static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg) 1040 { 1041 uint8_t attr = U8((*ptr)++); 1042 uint32_t dst, src; 1043 SDEBUG(" src1: "); 1044 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1); 1045 SDEBUG(" src2: "); 1046 src = atom_get_src(ctx, attr, ptr); 1047 ctx->ctx->cs_equal = ((dst & src) == 0); 1048 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE"); 1049 } 1050 1051 static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg) 1052 { 1053 uint8_t attr = U8((*ptr)++); 1054 uint32_t dst, src, saved; 1055 int dptr = *ptr; 1056 SDEBUG(" dst: "); 1057 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1); 1058 SDEBUG(" src: "); 1059 src = atom_get_src(ctx, attr, ptr); 1060 dst ^= src; 1061 SDEBUG(" dst: "); 1062 atom_put_dst(ctx, arg, attr, &dptr, dst, saved); 1063 } 1064 1065 static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg) 1066 { 1067 uint8_t val = U8((*ptr)++); 1068 SDEBUG("DEBUG output: 0x%02X\n", val); 1069 } 1070 1071 static void atom_op_processds(atom_exec_context *ctx, int *ptr, int arg) 1072 { 1073 uint16_t val = U16(*ptr); 1074 (*ptr) += val + 2; 1075 SDEBUG("PROCESSDS output: 0x%02X\n", val); 1076 } 1077 1078 static struct { 1079 void (*func) (atom_exec_context *, int *, int); 1080 int arg; 1081 } opcode_table[ATOM_OP_CNT] = { 1082 { 1083 NULL, 0}, { 1084 atom_op_move, ATOM_ARG_REG}, { 1085 atom_op_move, ATOM_ARG_PS}, { 1086 atom_op_move, ATOM_ARG_WS}, { 1087 atom_op_move, ATOM_ARG_FB}, { 1088 atom_op_move, ATOM_ARG_PLL}, { 1089 atom_op_move, ATOM_ARG_MC}, { 1090 atom_op_and, ATOM_ARG_REG}, { 1091 atom_op_and, ATOM_ARG_PS}, { 1092 atom_op_and, ATOM_ARG_WS}, { 1093 atom_op_and, ATOM_ARG_FB}, { 1094 atom_op_and, ATOM_ARG_PLL}, { 1095 atom_op_and, ATOM_ARG_MC}, { 1096 atom_op_or, ATOM_ARG_REG}, { 1097 atom_op_or, ATOM_ARG_PS}, { 1098 atom_op_or, ATOM_ARG_WS}, { 1099 atom_op_or, ATOM_ARG_FB}, { 1100 atom_op_or, ATOM_ARG_PLL}, { 1101 atom_op_or, ATOM_ARG_MC}, { 1102 atom_op_shift_left, ATOM_ARG_REG}, { 1103 atom_op_shift_left, ATOM_ARG_PS}, { 1104 atom_op_shift_left, ATOM_ARG_WS}, { 1105 atom_op_shift_left, ATOM_ARG_FB}, { 1106 atom_op_shift_left, ATOM_ARG_PLL}, { 1107 atom_op_shift_left, ATOM_ARG_MC}, { 1108 atom_op_shift_right, ATOM_ARG_REG}, { 1109 atom_op_shift_right, ATOM_ARG_PS}, { 1110 atom_op_shift_right, ATOM_ARG_WS}, { 1111 atom_op_shift_right, ATOM_ARG_FB}, { 1112 atom_op_shift_right, ATOM_ARG_PLL}, { 1113 atom_op_shift_right, ATOM_ARG_MC}, { 1114 atom_op_mul, ATOM_ARG_REG}, { 1115 atom_op_mul, ATOM_ARG_PS}, { 1116 atom_op_mul, ATOM_ARG_WS}, { 1117 atom_op_mul, ATOM_ARG_FB}, { 1118 atom_op_mul, ATOM_ARG_PLL}, { 1119 atom_op_mul, ATOM_ARG_MC}, { 1120 atom_op_div, ATOM_ARG_REG}, { 1121 atom_op_div, ATOM_ARG_PS}, { 1122 atom_op_div, ATOM_ARG_WS}, { 1123 atom_op_div, ATOM_ARG_FB}, { 1124 atom_op_div, ATOM_ARG_PLL}, { 1125 atom_op_div, ATOM_ARG_MC}, { 1126 atom_op_add, ATOM_ARG_REG}, { 1127 atom_op_add, ATOM_ARG_PS}, { 1128 atom_op_add, ATOM_ARG_WS}, { 1129 atom_op_add, ATOM_ARG_FB}, { 1130 atom_op_add, ATOM_ARG_PLL}, { 1131 atom_op_add, ATOM_ARG_MC}, { 1132 atom_op_sub, ATOM_ARG_REG}, { 1133 atom_op_sub, ATOM_ARG_PS}, { 1134 atom_op_sub, ATOM_ARG_WS}, { 1135 atom_op_sub, ATOM_ARG_FB}, { 1136 atom_op_sub, ATOM_ARG_PLL}, { 1137 atom_op_sub, ATOM_ARG_MC}, { 1138 atom_op_setport, ATOM_PORT_ATI}, { 1139 atom_op_setport, ATOM_PORT_PCI}, { 1140 atom_op_setport, ATOM_PORT_SYSIO}, { 1141 atom_op_setregblock, 0}, { 1142 atom_op_setfbbase, 0}, { 1143 atom_op_compare, ATOM_ARG_REG}, { 1144 atom_op_compare, ATOM_ARG_PS}, { 1145 atom_op_compare, ATOM_ARG_WS}, { 1146 atom_op_compare, ATOM_ARG_FB}, { 1147 atom_op_compare, ATOM_ARG_PLL}, { 1148 atom_op_compare, ATOM_ARG_MC}, { 1149 atom_op_switch, 0}, { 1150 atom_op_jump, ATOM_COND_ALWAYS}, { 1151 atom_op_jump, ATOM_COND_EQUAL}, { 1152 atom_op_jump, ATOM_COND_BELOW}, { 1153 atom_op_jump, ATOM_COND_ABOVE}, { 1154 atom_op_jump, ATOM_COND_BELOWOREQUAL}, { 1155 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, { 1156 atom_op_jump, ATOM_COND_NOTEQUAL}, { 1157 atom_op_test, ATOM_ARG_REG}, { 1158 atom_op_test, ATOM_ARG_PS}, { 1159 atom_op_test, ATOM_ARG_WS}, { 1160 atom_op_test, ATOM_ARG_FB}, { 1161 atom_op_test, ATOM_ARG_PLL}, { 1162 atom_op_test, ATOM_ARG_MC}, { 1163 atom_op_delay, ATOM_UNIT_MILLISEC}, { 1164 atom_op_delay, ATOM_UNIT_MICROSEC}, { 1165 atom_op_calltable, 0}, { 1166 atom_op_repeat, 0}, { 1167 atom_op_clear, ATOM_ARG_REG}, { 1168 atom_op_clear, ATOM_ARG_PS}, { 1169 atom_op_clear, ATOM_ARG_WS}, { 1170 atom_op_clear, ATOM_ARG_FB}, { 1171 atom_op_clear, ATOM_ARG_PLL}, { 1172 atom_op_clear, ATOM_ARG_MC}, { 1173 atom_op_nop, 0}, { 1174 atom_op_eot, 0}, { 1175 atom_op_mask, ATOM_ARG_REG}, { 1176 atom_op_mask, ATOM_ARG_PS}, { 1177 atom_op_mask, ATOM_ARG_WS}, { 1178 atom_op_mask, ATOM_ARG_FB}, { 1179 atom_op_mask, ATOM_ARG_PLL}, { 1180 atom_op_mask, ATOM_ARG_MC}, { 1181 atom_op_postcard, 0}, { 1182 atom_op_beep, 0}, { 1183 atom_op_savereg, 0}, { 1184 atom_op_restorereg, 0}, { 1185 atom_op_setdatablock, 0}, { 1186 atom_op_xor, ATOM_ARG_REG}, { 1187 atom_op_xor, ATOM_ARG_PS}, { 1188 atom_op_xor, ATOM_ARG_WS}, { 1189 atom_op_xor, ATOM_ARG_FB}, { 1190 atom_op_xor, ATOM_ARG_PLL}, { 1191 atom_op_xor, ATOM_ARG_MC}, { 1192 atom_op_shl, ATOM_ARG_REG}, { 1193 atom_op_shl, ATOM_ARG_PS}, { 1194 atom_op_shl, ATOM_ARG_WS}, { 1195 atom_op_shl, ATOM_ARG_FB}, { 1196 atom_op_shl, ATOM_ARG_PLL}, { 1197 atom_op_shl, ATOM_ARG_MC}, { 1198 atom_op_shr, ATOM_ARG_REG}, { 1199 atom_op_shr, ATOM_ARG_PS}, { 1200 atom_op_shr, ATOM_ARG_WS}, { 1201 atom_op_shr, ATOM_ARG_FB}, { 1202 atom_op_shr, ATOM_ARG_PLL}, { 1203 atom_op_shr, ATOM_ARG_MC}, { 1204 atom_op_debug, 0}, { 1205 atom_op_processds, 0}, { 1206 atom_op_mul32, ATOM_ARG_PS}, { 1207 atom_op_mul32, ATOM_ARG_WS}, { 1208 atom_op_div32, ATOM_ARG_PS}, { 1209 atom_op_div32, ATOM_ARG_WS}, 1210 }; 1211 1212 static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params) 1213 { 1214 int base = CU16(ctx->cmd_table + 4 + 2 * index); 1215 int len, ws, ps, ptr; 1216 unsigned char op; 1217 atom_exec_context ectx; 1218 int ret = 0; 1219 1220 if (!base) 1221 return -EINVAL; 1222 1223 len = CU16(base + ATOM_CT_SIZE_PTR); 1224 ws = CU8(base + ATOM_CT_WS_PTR); 1225 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK; 1226 ptr = base + ATOM_CT_CODE_PTR; 1227 1228 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps); 1229 1230 ectx.ctx = ctx; 1231 ectx.ps_shift = ps / 4; 1232 ectx.start = base; 1233 ectx.ps = params; 1234 ectx.abort = false; 1235 ectx.last_jump = 0; 1236 if (ws) 1237 ectx.ws = kzalloc(4 * ws, GFP_KERNEL); 1238 else 1239 ectx.ws = NULL; 1240 1241 debug_depth++; 1242 while (1) { 1243 op = CU8(ptr++); 1244 if (op < ATOM_OP_NAMES_CNT) 1245 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1); 1246 else 1247 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1); 1248 if (ectx.abort) { 1249 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n", 1250 base, len, ws, ps, ptr - 1); 1251 ret = -EINVAL; 1252 goto free; 1253 } 1254 1255 if (op < ATOM_OP_CNT && op > 0) 1256 opcode_table[op].func(&ectx, &ptr, 1257 opcode_table[op].arg); 1258 else 1259 break; 1260 1261 if (op == ATOM_OP_EOT) 1262 break; 1263 } 1264 debug_depth--; 1265 SDEBUG("<<\n"); 1266 1267 free: 1268 if (ws) 1269 kfree(ectx.ws); 1270 return ret; 1271 } 1272 1273 int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t * params) 1274 { 1275 int r; 1276 1277 mutex_lock(&ctx->mutex); 1278 /* reset data block */ 1279 ctx->data_block = 0; 1280 /* reset reg block */ 1281 ctx->reg_block = 0; 1282 /* reset fb window */ 1283 ctx->fb_base = 0; 1284 /* reset io mode */ 1285 ctx->io_mode = ATOM_IO_MM; 1286 /* reset divmul */ 1287 ctx->divmul[0] = 0; 1288 ctx->divmul[1] = 0; 1289 r = amdgpu_atom_execute_table_locked(ctx, index, params); 1290 mutex_unlock(&ctx->mutex); 1291 return r; 1292 } 1293 1294 static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 }; 1295 1296 static void atom_index_iio(struct atom_context *ctx, int base) 1297 { 1298 ctx->iio = kzalloc(2 * 256, GFP_KERNEL); 1299 if (!ctx->iio) 1300 return; 1301 while (CU8(base) == ATOM_IIO_START) { 1302 ctx->iio[CU8(base + 1)] = base + 2; 1303 base += 2; 1304 while (CU8(base) != ATOM_IIO_END) 1305 base += atom_iio_len[CU8(base)]; 1306 base += 3; 1307 } 1308 } 1309 1310 struct atom_context *amdgpu_atom_parse(struct card_info *card, void *bios) 1311 { 1312 int base; 1313 struct atom_context *ctx = 1314 kzalloc(sizeof(struct atom_context), GFP_KERNEL); 1315 char *str; 1316 char name[512]; 1317 int i; 1318 1319 if (!ctx) 1320 return NULL; 1321 1322 ctx->card = card; 1323 ctx->bios = bios; 1324 1325 if (CU16(0) != ATOM_BIOS_MAGIC) { 1326 printk(KERN_INFO "Invalid BIOS magic.\n"); 1327 kfree(ctx); 1328 return NULL; 1329 } 1330 if (strncmp 1331 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC, 1332 strlen(ATOM_ATI_MAGIC))) { 1333 printk(KERN_INFO "Invalid ATI magic.\n"); 1334 kfree(ctx); 1335 return NULL; 1336 } 1337 1338 base = CU16(ATOM_ROM_TABLE_PTR); 1339 if (strncmp 1340 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC, 1341 strlen(ATOM_ROM_MAGIC))) { 1342 printk(KERN_INFO "Invalid ATOM magic.\n"); 1343 kfree(ctx); 1344 return NULL; 1345 } 1346 1347 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR); 1348 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR); 1349 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4); 1350 if (!ctx->iio) { 1351 amdgpu_atom_destroy(ctx); 1352 return NULL; 1353 } 1354 1355 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR)); 1356 while (*str && ((*str == '\n') || (*str == '\r'))) 1357 str++; 1358 /* name string isn't always 0 terminated */ 1359 for (i = 0; i < 511; i++) { 1360 name[i] = str[i]; 1361 if (name[i] < '.' || name[i] > 'z') { 1362 name[i] = 0; 1363 break; 1364 } 1365 } 1366 printk(KERN_INFO "ATOM BIOS: %s\n", name); 1367 1368 return ctx; 1369 } 1370 1371 int amdgpu_atom_asic_init(struct atom_context *ctx) 1372 { 1373 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR); 1374 uint32_t ps[16]; 1375 int ret; 1376 1377 memset(ps, 0, 64); 1378 1379 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR)); 1380 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR)); 1381 if (!ps[0] || !ps[1]) 1382 return 1; 1383 1384 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT)) 1385 return 1; 1386 ret = amdgpu_atom_execute_table(ctx, ATOM_CMD_INIT, ps); 1387 if (ret) 1388 return ret; 1389 1390 memset(ps, 0, 64); 1391 1392 return ret; 1393 } 1394 1395 void amdgpu_atom_destroy(struct atom_context *ctx) 1396 { 1397 kfree(ctx->iio); 1398 kfree(ctx); 1399 } 1400 1401 bool amdgpu_atom_parse_data_header(struct atom_context *ctx, int index, 1402 uint16_t * size, uint8_t * frev, uint8_t * crev, 1403 uint16_t * data_start) 1404 { 1405 int offset = index * 2 + 4; 1406 int idx = CU16(ctx->data_table + offset); 1407 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4); 1408 1409 if (!mdt[index]) 1410 return false; 1411 1412 if (size) 1413 *size = CU16(idx); 1414 if (frev) 1415 *frev = CU8(idx + 2); 1416 if (crev) 1417 *crev = CU8(idx + 3); 1418 *data_start = idx; 1419 return true; 1420 } 1421 1422 bool amdgpu_atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev, 1423 uint8_t * crev) 1424 { 1425 int offset = index * 2 + 4; 1426 int idx = CU16(ctx->cmd_table + offset); 1427 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4); 1428 1429 if (!mct[index]) 1430 return false; 1431 1432 if (frev) 1433 *frev = CU8(idx + 2); 1434 if (crev) 1435 *crev = CU8(idx + 3); 1436 return true; 1437 } 1438 1439 int amdgpu_atom_allocate_fb_scratch(struct atom_context *ctx) 1440 { 1441 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware); 1442 uint16_t data_offset; 1443 int usage_bytes = 0; 1444 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage; 1445 1446 if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) { 1447 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset); 1448 1449 DRM_DEBUG("atom firmware requested %08x %dkb\n", 1450 le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware), 1451 le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb)); 1452 1453 usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024; 1454 } 1455 ctx->scratch_size_bytes = 0; 1456 if (usage_bytes == 0) 1457 usage_bytes = 20 * 1024; 1458 /* allocate some scratch memory */ 1459 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL); 1460 if (!ctx->scratch) 1461 return -ENOMEM; 1462 ctx->scratch_size_bytes = usage_bytes; 1463 return 0; 1464 } 1465
Indexes created Fri Sep 26 08:10:20 GMT 2025