Loading...
1/*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Author: Stanislaw Skowronek
23 */
24
25#include <linux/module.h>
26#include <linux/sched.h>
27#include <linux/slab.h>
28#include <linux/string_helpers.h>
29
30#include <asm/unaligned.h>
31
32#include <drm/drm_util.h>
33
34#define ATOM_DEBUG
35
36#include "atomfirmware.h"
37#include "atom.h"
38#include "atom-names.h"
39#include "atom-bits.h"
40#include "amdgpu.h"
41
42#define ATOM_COND_ABOVE 0
43#define ATOM_COND_ABOVEOREQUAL 1
44#define ATOM_COND_ALWAYS 2
45#define ATOM_COND_BELOW 3
46#define ATOM_COND_BELOWOREQUAL 4
47#define ATOM_COND_EQUAL 5
48#define ATOM_COND_NOTEQUAL 6
49
50#define ATOM_PORT_ATI 0
51#define ATOM_PORT_PCI 1
52#define ATOM_PORT_SYSIO 2
53
54#define ATOM_UNIT_MICROSEC 0
55#define ATOM_UNIT_MILLISEC 1
56
57#define PLL_INDEX 2
58#define PLL_DATA 3
59
60#define ATOM_CMD_TIMEOUT_SEC 20
61
62typedef struct {
63 struct atom_context *ctx;
64 uint32_t *ps, *ws;
65 int ps_size, ws_size;
66 int ps_shift;
67 uint16_t start;
68 unsigned last_jump;
69 unsigned long last_jump_jiffies;
70 bool abort;
71} atom_exec_context;
72
73int amdgpu_atom_debug;
74static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t *params, int params_size);
75int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t *params, int params_size);
76
77static uint32_t atom_arg_mask[8] =
78 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
79 0xFF000000 };
80static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
81
82static int atom_dst_to_src[8][4] = {
83 /* translate destination alignment field to the source alignment encoding */
84 {0, 0, 0, 0},
85 {1, 2, 3, 0},
86 {1, 2, 3, 0},
87 {1, 2, 3, 0},
88 {4, 5, 6, 7},
89 {4, 5, 6, 7},
90 {4, 5, 6, 7},
91 {4, 5, 6, 7},
92};
93static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
94
95static int debug_depth;
96#ifdef ATOM_DEBUG
97static void debug_print_spaces(int n)
98{
99 while (n--)
100 printk(" ");
101}
102
103#define DEBUG(...) do if (amdgpu_atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
104#define SDEBUG(...) do if (amdgpu_atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
105#else
106#define DEBUG(...) do { } while (0)
107#define SDEBUG(...) do { } while (0)
108#endif
109
110static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
111 uint32_t index, uint32_t data)
112{
113 uint32_t temp = 0xCDCDCDCD;
114
115 while (1)
116 switch (CU8(base)) {
117 case ATOM_IIO_NOP:
118 base++;
119 break;
120 case ATOM_IIO_READ:
121 temp = ctx->card->reg_read(ctx->card, CU16(base + 1));
122 base += 3;
123 break;
124 case ATOM_IIO_WRITE:
125 ctx->card->reg_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
182static 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 if (idx < ctx->ps_size)
228 val = get_unaligned_le32((u32 *)&ctx->ps[idx]);
229 else
230 pr_info("PS index out of range: %i > %i\n", idx, ctx->ps_size);
231 if (print)
232 DEBUG("PS[0x%02X,0x%04X]", idx, val);
233 break;
234 case ATOM_ARG_WS:
235 idx = U8(*ptr);
236 (*ptr)++;
237 if (print)
238 DEBUG("WS[0x%02X]", idx);
239 switch (idx) {
240 case ATOM_WS_QUOTIENT:
241 val = gctx->divmul[0];
242 break;
243 case ATOM_WS_REMAINDER:
244 val = gctx->divmul[1];
245 break;
246 case ATOM_WS_DATAPTR:
247 val = gctx->data_block;
248 break;
249 case ATOM_WS_SHIFT:
250 val = gctx->shift;
251 break;
252 case ATOM_WS_OR_MASK:
253 val = 1 << gctx->shift;
254 break;
255 case ATOM_WS_AND_MASK:
256 val = ~(1 << gctx->shift);
257 break;
258 case ATOM_WS_FB_WINDOW:
259 val = gctx->fb_base;
260 break;
261 case ATOM_WS_ATTRIBUTES:
262 val = gctx->io_attr;
263 break;
264 case ATOM_WS_REGPTR:
265 val = gctx->reg_block;
266 break;
267 default:
268 if (idx < ctx->ws_size)
269 val = ctx->ws[idx];
270 else
271 pr_info("WS index out of range: %i > %i\n", idx, ctx->ws_size);
272 }
273 break;
274 case ATOM_ARG_ID:
275 idx = U16(*ptr);
276 (*ptr) += 2;
277 if (print) {
278 if (gctx->data_block)
279 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
280 else
281 DEBUG("ID[0x%04X]", idx);
282 }
283 val = U32(idx + gctx->data_block);
284 break;
285 case ATOM_ARG_FB:
286 idx = U8(*ptr);
287 (*ptr)++;
288 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
289 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n",
290 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
291 val = 0;
292 } else
293 val = gctx->scratch[(gctx->fb_base / 4) + idx];
294 if (print)
295 DEBUG("FB[0x%02X]", idx);
296 break;
297 case ATOM_ARG_IMM:
298 switch (align) {
299 case ATOM_SRC_DWORD:
300 val = U32(*ptr);
301 (*ptr) += 4;
302 if (print)
303 DEBUG("IMM 0x%08X\n", val);
304 return val;
305 case ATOM_SRC_WORD0:
306 case ATOM_SRC_WORD8:
307 case ATOM_SRC_WORD16:
308 val = U16(*ptr);
309 (*ptr) += 2;
310 if (print)
311 DEBUG("IMM 0x%04X\n", val);
312 return val;
313 case ATOM_SRC_BYTE0:
314 case ATOM_SRC_BYTE8:
315 case ATOM_SRC_BYTE16:
316 case ATOM_SRC_BYTE24:
317 val = U8(*ptr);
318 (*ptr)++;
319 if (print)
320 DEBUG("IMM 0x%02X\n", val);
321 return val;
322 }
323 break;
324 case ATOM_ARG_PLL:
325 idx = U8(*ptr);
326 (*ptr)++;
327 if (print)
328 DEBUG("PLL[0x%02X]", idx);
329 val = gctx->card->pll_read(gctx->card, idx);
330 break;
331 case ATOM_ARG_MC:
332 idx = U8(*ptr);
333 (*ptr)++;
334 if (print)
335 DEBUG("MC[0x%02X]", idx);
336 val = gctx->card->mc_read(gctx->card, idx);
337 break;
338 }
339 if (saved)
340 *saved = val;
341 val &= atom_arg_mask[align];
342 val >>= atom_arg_shift[align];
343 if (print)
344 switch (align) {
345 case ATOM_SRC_DWORD:
346 DEBUG(".[31:0] -> 0x%08X\n", val);
347 break;
348 case ATOM_SRC_WORD0:
349 DEBUG(".[15:0] -> 0x%04X\n", val);
350 break;
351 case ATOM_SRC_WORD8:
352 DEBUG(".[23:8] -> 0x%04X\n", val);
353 break;
354 case ATOM_SRC_WORD16:
355 DEBUG(".[31:16] -> 0x%04X\n", val);
356 break;
357 case ATOM_SRC_BYTE0:
358 DEBUG(".[7:0] -> 0x%02X\n", val);
359 break;
360 case ATOM_SRC_BYTE8:
361 DEBUG(".[15:8] -> 0x%02X\n", val);
362 break;
363 case ATOM_SRC_BYTE16:
364 DEBUG(".[23:16] -> 0x%02X\n", val);
365 break;
366 case ATOM_SRC_BYTE24:
367 DEBUG(".[31:24] -> 0x%02X\n", val);
368 break;
369 }
370 return val;
371}
372
373static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
374{
375 uint32_t align = (attr >> 3) & 7, arg = attr & 7;
376 switch (arg) {
377 case ATOM_ARG_REG:
378 case ATOM_ARG_ID:
379 (*ptr) += 2;
380 break;
381 case ATOM_ARG_PLL:
382 case ATOM_ARG_MC:
383 case ATOM_ARG_PS:
384 case ATOM_ARG_WS:
385 case ATOM_ARG_FB:
386 (*ptr)++;
387 break;
388 case ATOM_ARG_IMM:
389 switch (align) {
390 case ATOM_SRC_DWORD:
391 (*ptr) += 4;
392 return;
393 case ATOM_SRC_WORD0:
394 case ATOM_SRC_WORD8:
395 case ATOM_SRC_WORD16:
396 (*ptr) += 2;
397 return;
398 case ATOM_SRC_BYTE0:
399 case ATOM_SRC_BYTE8:
400 case ATOM_SRC_BYTE16:
401 case ATOM_SRC_BYTE24:
402 (*ptr)++;
403 return;
404 }
405 }
406}
407
408static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
409{
410 return atom_get_src_int(ctx, attr, ptr, NULL, 1);
411}
412
413static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
414{
415 uint32_t val = 0xCDCDCDCD;
416
417 switch (align) {
418 case ATOM_SRC_DWORD:
419 val = U32(*ptr);
420 (*ptr) += 4;
421 break;
422 case ATOM_SRC_WORD0:
423 case ATOM_SRC_WORD8:
424 case ATOM_SRC_WORD16:
425 val = U16(*ptr);
426 (*ptr) += 2;
427 break;
428 case ATOM_SRC_BYTE0:
429 case ATOM_SRC_BYTE8:
430 case ATOM_SRC_BYTE16:
431 case ATOM_SRC_BYTE24:
432 val = U8(*ptr);
433 (*ptr)++;
434 break;
435 }
436 return val;
437}
438
439static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
440 int *ptr, uint32_t *saved, int print)
441{
442 return atom_get_src_int(ctx,
443 arg | atom_dst_to_src[(attr >> 3) &
444 7][(attr >> 6) & 3] << 3,
445 ptr, saved, print);
446}
447
448static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
449{
450 atom_skip_src_int(ctx,
451 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
452 3] << 3, ptr);
453}
454
455static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
456 int *ptr, uint32_t val, uint32_t saved)
457{
458 uint32_t align =
459 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
460 val, idx;
461 struct atom_context *gctx = ctx->ctx;
462 old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
463 val <<= atom_arg_shift[align];
464 val &= atom_arg_mask[align];
465 saved &= ~atom_arg_mask[align];
466 val |= saved;
467 switch (arg) {
468 case ATOM_ARG_REG:
469 idx = U16(*ptr);
470 (*ptr) += 2;
471 DEBUG("REG[0x%04X]", idx);
472 idx += gctx->reg_block;
473 switch (gctx->io_mode) {
474 case ATOM_IO_MM:
475 if (idx == 0)
476 gctx->card->reg_write(gctx->card, idx,
477 val << 2);
478 else
479 gctx->card->reg_write(gctx->card, idx, val);
480 break;
481 case ATOM_IO_PCI:
482 pr_info("PCI registers are not implemented\n");
483 return;
484 case ATOM_IO_SYSIO:
485 pr_info("SYSIO registers are not implemented\n");
486 return;
487 default:
488 if (!(gctx->io_mode & 0x80)) {
489 pr_info("Bad IO mode\n");
490 return;
491 }
492 if (!gctx->iio[gctx->io_mode & 0xFF]) {
493 pr_info("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 if (idx >= ctx->ps_size) {
506 pr_info("PS index out of range: %i > %i\n", idx, ctx->ps_size);
507 return;
508 }
509 ctx->ps[idx] = cpu_to_le32(val);
510 break;
511 case ATOM_ARG_WS:
512 idx = U8(*ptr);
513 (*ptr)++;
514 DEBUG("WS[0x%02X]", idx);
515 switch (idx) {
516 case ATOM_WS_QUOTIENT:
517 gctx->divmul[0] = val;
518 break;
519 case ATOM_WS_REMAINDER:
520 gctx->divmul[1] = val;
521 break;
522 case ATOM_WS_DATAPTR:
523 gctx->data_block = val;
524 break;
525 case ATOM_WS_SHIFT:
526 gctx->shift = val;
527 break;
528 case ATOM_WS_OR_MASK:
529 case ATOM_WS_AND_MASK:
530 break;
531 case ATOM_WS_FB_WINDOW:
532 gctx->fb_base = val;
533 break;
534 case ATOM_WS_ATTRIBUTES:
535 gctx->io_attr = val;
536 break;
537 case ATOM_WS_REGPTR:
538 gctx->reg_block = val;
539 break;
540 default:
541 if (idx >= ctx->ws_size) {
542 pr_info("WS index out of range: %i > %i\n", idx, ctx->ws_size);
543 return;
544 }
545 ctx->ws[idx] = val;
546 }
547 break;
548 case ATOM_ARG_FB:
549 idx = U8(*ptr);
550 (*ptr)++;
551 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
552 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n",
553 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
554 } else
555 gctx->scratch[(gctx->fb_base / 4) + idx] = val;
556 DEBUG("FB[0x%02X]", idx);
557 break;
558 case ATOM_ARG_PLL:
559 idx = U8(*ptr);
560 (*ptr)++;
561 DEBUG("PLL[0x%02X]", idx);
562 gctx->card->pll_write(gctx->card, idx, val);
563 break;
564 case ATOM_ARG_MC:
565 idx = U8(*ptr);
566 (*ptr)++;
567 DEBUG("MC[0x%02X]", idx);
568 gctx->card->mc_write(gctx->card, idx, val);
569 return;
570 }
571 switch (align) {
572 case ATOM_SRC_DWORD:
573 DEBUG(".[31:0] <- 0x%08X\n", old_val);
574 break;
575 case ATOM_SRC_WORD0:
576 DEBUG(".[15:0] <- 0x%04X\n", old_val);
577 break;
578 case ATOM_SRC_WORD8:
579 DEBUG(".[23:8] <- 0x%04X\n", old_val);
580 break;
581 case ATOM_SRC_WORD16:
582 DEBUG(".[31:16] <- 0x%04X\n", old_val);
583 break;
584 case ATOM_SRC_BYTE0:
585 DEBUG(".[7:0] <- 0x%02X\n", old_val);
586 break;
587 case ATOM_SRC_BYTE8:
588 DEBUG(".[15:8] <- 0x%02X\n", old_val);
589 break;
590 case ATOM_SRC_BYTE16:
591 DEBUG(".[23:16] <- 0x%02X\n", old_val);
592 break;
593 case ATOM_SRC_BYTE24:
594 DEBUG(".[31:24] <- 0x%02X\n", old_val);
595 break;
596 }
597}
598
599static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
600{
601 uint8_t attr = U8((*ptr)++);
602 uint32_t dst, src, saved;
603 int dptr = *ptr;
604 SDEBUG(" dst: ");
605 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
606 SDEBUG(" src: ");
607 src = atom_get_src(ctx, attr, ptr);
608 dst += src;
609 SDEBUG(" dst: ");
610 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
611}
612
613static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
614{
615 uint8_t attr = U8((*ptr)++);
616 uint32_t dst, src, saved;
617 int dptr = *ptr;
618 SDEBUG(" dst: ");
619 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
620 SDEBUG(" src: ");
621 src = atom_get_src(ctx, attr, ptr);
622 dst &= src;
623 SDEBUG(" dst: ");
624 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
625}
626
627static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
628{
629 printk("ATOM BIOS beeped!\n");
630}
631
632static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
633{
634 int idx = U8((*ptr)++);
635 int r = 0;
636
637 if (idx < ATOM_TABLE_NAMES_CNT)
638 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]);
639 else
640 SDEBUG(" table: %d\n", idx);
641 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
642 r = amdgpu_atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift, ctx->ps_size - ctx->ps_shift);
643 if (r) {
644 ctx->abort = true;
645 }
646}
647
648static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
649{
650 uint8_t attr = U8((*ptr)++);
651 uint32_t saved;
652 int dptr = *ptr;
653 attr &= 0x38;
654 attr |= atom_def_dst[attr >> 3] << 6;
655 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
656 SDEBUG(" dst: ");
657 atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
658}
659
660static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
661{
662 uint8_t attr = U8((*ptr)++);
663 uint32_t dst, src;
664 SDEBUG(" src1: ");
665 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
666 SDEBUG(" src2: ");
667 src = atom_get_src(ctx, attr, ptr);
668 ctx->ctx->cs_equal = (dst == src);
669 ctx->ctx->cs_above = (dst > src);
670 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
671 ctx->ctx->cs_above ? "GT" : "LE");
672}
673
674static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
675{
676 unsigned count = U8((*ptr)++);
677 SDEBUG(" count: %d\n", count);
678 if (arg == ATOM_UNIT_MICROSEC)
679 udelay(count);
680 else if (!drm_can_sleep())
681 mdelay(count);
682 else
683 msleep(count);
684}
685
686static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
687{
688 uint8_t attr = U8((*ptr)++);
689 uint32_t dst, src;
690 SDEBUG(" src1: ");
691 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
692 SDEBUG(" src2: ");
693 src = atom_get_src(ctx, attr, ptr);
694 if (src != 0) {
695 ctx->ctx->divmul[0] = dst / src;
696 ctx->ctx->divmul[1] = dst % src;
697 } else {
698 ctx->ctx->divmul[0] = 0;
699 ctx->ctx->divmul[1] = 0;
700 }
701}
702
703static void atom_op_div32(atom_exec_context *ctx, int *ptr, int arg)
704{
705 uint64_t val64;
706 uint8_t attr = U8((*ptr)++);
707 uint32_t dst, src;
708 SDEBUG(" src1: ");
709 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
710 SDEBUG(" src2: ");
711 src = atom_get_src(ctx, attr, ptr);
712 if (src != 0) {
713 val64 = dst;
714 val64 |= ((uint64_t)ctx->ctx->divmul[1]) << 32;
715 do_div(val64, src);
716 ctx->ctx->divmul[0] = lower_32_bits(val64);
717 ctx->ctx->divmul[1] = upper_32_bits(val64);
718 } else {
719 ctx->ctx->divmul[0] = 0;
720 ctx->ctx->divmul[1] = 0;
721 }
722}
723
724static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
725{
726 /* functionally, a nop */
727}
728
729static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
730{
731 int execute = 0, target = U16(*ptr);
732 unsigned long cjiffies;
733
734 (*ptr) += 2;
735 switch (arg) {
736 case ATOM_COND_ABOVE:
737 execute = ctx->ctx->cs_above;
738 break;
739 case ATOM_COND_ABOVEOREQUAL:
740 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
741 break;
742 case ATOM_COND_ALWAYS:
743 execute = 1;
744 break;
745 case ATOM_COND_BELOW:
746 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
747 break;
748 case ATOM_COND_BELOWOREQUAL:
749 execute = !ctx->ctx->cs_above;
750 break;
751 case ATOM_COND_EQUAL:
752 execute = ctx->ctx->cs_equal;
753 break;
754 case ATOM_COND_NOTEQUAL:
755 execute = !ctx->ctx->cs_equal;
756 break;
757 }
758 if (arg != ATOM_COND_ALWAYS)
759 SDEBUG(" taken: %s\n", str_yes_no(execute));
760 SDEBUG(" target: 0x%04X\n", target);
761 if (execute) {
762 if (ctx->last_jump == (ctx->start + target)) {
763 cjiffies = jiffies;
764 if (time_after(cjiffies, ctx->last_jump_jiffies)) {
765 cjiffies -= ctx->last_jump_jiffies;
766 if ((jiffies_to_msecs(cjiffies) > ATOM_CMD_TIMEOUT_SEC*1000)) {
767 DRM_ERROR("atombios stuck in loop for more than %dsecs aborting\n",
768 ATOM_CMD_TIMEOUT_SEC);
769 ctx->abort = true;
770 }
771 } else {
772 /* jiffies wrap around we will just wait a little longer */
773 ctx->last_jump_jiffies = jiffies;
774 }
775 } else {
776 ctx->last_jump = ctx->start + target;
777 ctx->last_jump_jiffies = jiffies;
778 }
779 *ptr = ctx->start + target;
780 }
781}
782
783static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
784{
785 uint8_t attr = U8((*ptr)++);
786 uint32_t dst, mask, src, saved;
787 int dptr = *ptr;
788 SDEBUG(" dst: ");
789 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
790 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
791 SDEBUG(" mask: 0x%08x", mask);
792 SDEBUG(" src: ");
793 src = atom_get_src(ctx, attr, ptr);
794 dst &= mask;
795 dst |= src;
796 SDEBUG(" dst: ");
797 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
798}
799
800static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
801{
802 uint8_t attr = U8((*ptr)++);
803 uint32_t src, saved;
804 int dptr = *ptr;
805 if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
806 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
807 else {
808 atom_skip_dst(ctx, arg, attr, ptr);
809 saved = 0xCDCDCDCD;
810 }
811 SDEBUG(" src: ");
812 src = atom_get_src(ctx, attr, ptr);
813 SDEBUG(" dst: ");
814 atom_put_dst(ctx, arg, attr, &dptr, src, saved);
815}
816
817static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
818{
819 uint8_t attr = U8((*ptr)++);
820 uint32_t dst, src;
821 SDEBUG(" src1: ");
822 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
823 SDEBUG(" src2: ");
824 src = atom_get_src(ctx, attr, ptr);
825 ctx->ctx->divmul[0] = dst * src;
826}
827
828static void atom_op_mul32(atom_exec_context *ctx, int *ptr, int arg)
829{
830 uint64_t val64;
831 uint8_t attr = U8((*ptr)++);
832 uint32_t dst, src;
833 SDEBUG(" src1: ");
834 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
835 SDEBUG(" src2: ");
836 src = atom_get_src(ctx, attr, ptr);
837 val64 = (uint64_t)dst * (uint64_t)src;
838 ctx->ctx->divmul[0] = lower_32_bits(val64);
839 ctx->ctx->divmul[1] = upper_32_bits(val64);
840}
841
842static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
843{
844 /* nothing */
845}
846
847static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
848{
849 uint8_t attr = U8((*ptr)++);
850 uint32_t dst, src, saved;
851 int dptr = *ptr;
852 SDEBUG(" dst: ");
853 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
854 SDEBUG(" src: ");
855 src = atom_get_src(ctx, attr, ptr);
856 dst |= src;
857 SDEBUG(" dst: ");
858 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
859}
860
861static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
862{
863 uint8_t val = U8((*ptr)++);
864 SDEBUG("POST card output: 0x%02X\n", val);
865}
866
867static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
868{
869 pr_info("unimplemented!\n");
870}
871
872static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
873{
874 pr_info("unimplemented!\n");
875}
876
877static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
878{
879 pr_info("unimplemented!\n");
880}
881
882static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
883{
884 int idx = U8(*ptr);
885 (*ptr)++;
886 SDEBUG(" block: %d\n", idx);
887 if (!idx)
888 ctx->ctx->data_block = 0;
889 else if (idx == 255)
890 ctx->ctx->data_block = ctx->start;
891 else
892 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
893 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block);
894}
895
896static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
897{
898 uint8_t attr = U8((*ptr)++);
899 SDEBUG(" fb_base: ");
900 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
901}
902
903static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
904{
905 int port;
906 switch (arg) {
907 case ATOM_PORT_ATI:
908 port = U16(*ptr);
909 if (port < ATOM_IO_NAMES_CNT)
910 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]);
911 else
912 SDEBUG(" port: %d\n", port);
913 if (!port)
914 ctx->ctx->io_mode = ATOM_IO_MM;
915 else
916 ctx->ctx->io_mode = ATOM_IO_IIO | port;
917 (*ptr) += 2;
918 break;
919 case ATOM_PORT_PCI:
920 ctx->ctx->io_mode = ATOM_IO_PCI;
921 (*ptr)++;
922 break;
923 case ATOM_PORT_SYSIO:
924 ctx->ctx->io_mode = ATOM_IO_SYSIO;
925 (*ptr)++;
926 break;
927 }
928}
929
930static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
931{
932 ctx->ctx->reg_block = U16(*ptr);
933 (*ptr) += 2;
934 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block);
935}
936
937static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
938{
939 uint8_t attr = U8((*ptr)++), shift;
940 uint32_t saved, dst;
941 int dptr = *ptr;
942 attr &= 0x38;
943 attr |= atom_def_dst[attr >> 3] << 6;
944 SDEBUG(" dst: ");
945 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
946 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
947 SDEBUG(" shift: %d\n", shift);
948 dst <<= shift;
949 SDEBUG(" dst: ");
950 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
951}
952
953static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
954{
955 uint8_t attr = U8((*ptr)++), shift;
956 uint32_t saved, dst;
957 int dptr = *ptr;
958 attr &= 0x38;
959 attr |= atom_def_dst[attr >> 3] << 6;
960 SDEBUG(" dst: ");
961 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
962 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
963 SDEBUG(" shift: %d\n", shift);
964 dst >>= shift;
965 SDEBUG(" dst: ");
966 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
967}
968
969static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
970{
971 uint8_t attr = U8((*ptr)++), shift;
972 uint32_t saved, dst;
973 int dptr = *ptr;
974 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
975 SDEBUG(" dst: ");
976 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
977 /* op needs to full dst value */
978 dst = saved;
979 shift = atom_get_src(ctx, attr, ptr);
980 SDEBUG(" shift: %d\n", shift);
981 dst <<= shift;
982 dst &= atom_arg_mask[dst_align];
983 dst >>= atom_arg_shift[dst_align];
984 SDEBUG(" dst: ");
985 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
986}
987
988static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
989{
990 uint8_t attr = U8((*ptr)++), shift;
991 uint32_t saved, dst;
992 int dptr = *ptr;
993 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
994 SDEBUG(" dst: ");
995 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
996 /* op needs to full dst value */
997 dst = saved;
998 shift = atom_get_src(ctx, attr, ptr);
999 SDEBUG(" shift: %d\n", shift);
1000 dst >>= shift;
1001 dst &= atom_arg_mask[dst_align];
1002 dst >>= atom_arg_shift[dst_align];
1003 SDEBUG(" dst: ");
1004 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1005}
1006
1007static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
1008{
1009 uint8_t attr = U8((*ptr)++);
1010 uint32_t dst, src, saved;
1011 int dptr = *ptr;
1012 SDEBUG(" dst: ");
1013 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1014 SDEBUG(" src: ");
1015 src = atom_get_src(ctx, attr, ptr);
1016 dst -= src;
1017 SDEBUG(" dst: ");
1018 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1019}
1020
1021static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
1022{
1023 uint8_t attr = U8((*ptr)++);
1024 uint32_t src, val, target;
1025 SDEBUG(" switch: ");
1026 src = atom_get_src(ctx, attr, ptr);
1027 while (U16(*ptr) != ATOM_CASE_END)
1028 if (U8(*ptr) == ATOM_CASE_MAGIC) {
1029 (*ptr)++;
1030 SDEBUG(" case: ");
1031 val =
1032 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
1033 ptr);
1034 target = U16(*ptr);
1035 if (val == src) {
1036 SDEBUG(" target: %04X\n", target);
1037 *ptr = ctx->start + target;
1038 return;
1039 }
1040 (*ptr) += 2;
1041 } else {
1042 pr_info("Bad case\n");
1043 return;
1044 }
1045 (*ptr) += 2;
1046}
1047
1048static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
1049{
1050 uint8_t attr = U8((*ptr)++);
1051 uint32_t dst, src;
1052 SDEBUG(" src1: ");
1053 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
1054 SDEBUG(" src2: ");
1055 src = atom_get_src(ctx, attr, ptr);
1056 ctx->ctx->cs_equal = ((dst & src) == 0);
1057 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
1058}
1059
1060static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
1061{
1062 uint8_t attr = U8((*ptr)++);
1063 uint32_t dst, src, saved;
1064 int dptr = *ptr;
1065 SDEBUG(" dst: ");
1066 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1067 SDEBUG(" src: ");
1068 src = atom_get_src(ctx, attr, ptr);
1069 dst ^= src;
1070 SDEBUG(" dst: ");
1071 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1072}
1073
1074static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1075{
1076 uint8_t val = U8((*ptr)++);
1077 SDEBUG("DEBUG output: 0x%02X\n", val);
1078}
1079
1080static void atom_op_processds(atom_exec_context *ctx, int *ptr, int arg)
1081{
1082 uint16_t val = U16(*ptr);
1083 (*ptr) += val + 2;
1084 SDEBUG("PROCESSDS output: 0x%02X\n", val);
1085}
1086
1087static struct {
1088 void (*func) (atom_exec_context *, int *, int);
1089 int arg;
1090} opcode_table[ATOM_OP_CNT] = {
1091 {
1092 NULL, 0}, {
1093 atom_op_move, ATOM_ARG_REG}, {
1094 atom_op_move, ATOM_ARG_PS}, {
1095 atom_op_move, ATOM_ARG_WS}, {
1096 atom_op_move, ATOM_ARG_FB}, {
1097 atom_op_move, ATOM_ARG_PLL}, {
1098 atom_op_move, ATOM_ARG_MC}, {
1099 atom_op_and, ATOM_ARG_REG}, {
1100 atom_op_and, ATOM_ARG_PS}, {
1101 atom_op_and, ATOM_ARG_WS}, {
1102 atom_op_and, ATOM_ARG_FB}, {
1103 atom_op_and, ATOM_ARG_PLL}, {
1104 atom_op_and, ATOM_ARG_MC}, {
1105 atom_op_or, ATOM_ARG_REG}, {
1106 atom_op_or, ATOM_ARG_PS}, {
1107 atom_op_or, ATOM_ARG_WS}, {
1108 atom_op_or, ATOM_ARG_FB}, {
1109 atom_op_or, ATOM_ARG_PLL}, {
1110 atom_op_or, ATOM_ARG_MC}, {
1111 atom_op_shift_left, ATOM_ARG_REG}, {
1112 atom_op_shift_left, ATOM_ARG_PS}, {
1113 atom_op_shift_left, ATOM_ARG_WS}, {
1114 atom_op_shift_left, ATOM_ARG_FB}, {
1115 atom_op_shift_left, ATOM_ARG_PLL}, {
1116 atom_op_shift_left, ATOM_ARG_MC}, {
1117 atom_op_shift_right, ATOM_ARG_REG}, {
1118 atom_op_shift_right, ATOM_ARG_PS}, {
1119 atom_op_shift_right, ATOM_ARG_WS}, {
1120 atom_op_shift_right, ATOM_ARG_FB}, {
1121 atom_op_shift_right, ATOM_ARG_PLL}, {
1122 atom_op_shift_right, ATOM_ARG_MC}, {
1123 atom_op_mul, ATOM_ARG_REG}, {
1124 atom_op_mul, ATOM_ARG_PS}, {
1125 atom_op_mul, ATOM_ARG_WS}, {
1126 atom_op_mul, ATOM_ARG_FB}, {
1127 atom_op_mul, ATOM_ARG_PLL}, {
1128 atom_op_mul, ATOM_ARG_MC}, {
1129 atom_op_div, ATOM_ARG_REG}, {
1130 atom_op_div, ATOM_ARG_PS}, {
1131 atom_op_div, ATOM_ARG_WS}, {
1132 atom_op_div, ATOM_ARG_FB}, {
1133 atom_op_div, ATOM_ARG_PLL}, {
1134 atom_op_div, ATOM_ARG_MC}, {
1135 atom_op_add, ATOM_ARG_REG}, {
1136 atom_op_add, ATOM_ARG_PS}, {
1137 atom_op_add, ATOM_ARG_WS}, {
1138 atom_op_add, ATOM_ARG_FB}, {
1139 atom_op_add, ATOM_ARG_PLL}, {
1140 atom_op_add, ATOM_ARG_MC}, {
1141 atom_op_sub, ATOM_ARG_REG}, {
1142 atom_op_sub, ATOM_ARG_PS}, {
1143 atom_op_sub, ATOM_ARG_WS}, {
1144 atom_op_sub, ATOM_ARG_FB}, {
1145 atom_op_sub, ATOM_ARG_PLL}, {
1146 atom_op_sub, ATOM_ARG_MC}, {
1147 atom_op_setport, ATOM_PORT_ATI}, {
1148 atom_op_setport, ATOM_PORT_PCI}, {
1149 atom_op_setport, ATOM_PORT_SYSIO}, {
1150 atom_op_setregblock, 0}, {
1151 atom_op_setfbbase, 0}, {
1152 atom_op_compare, ATOM_ARG_REG}, {
1153 atom_op_compare, ATOM_ARG_PS}, {
1154 atom_op_compare, ATOM_ARG_WS}, {
1155 atom_op_compare, ATOM_ARG_FB}, {
1156 atom_op_compare, ATOM_ARG_PLL}, {
1157 atom_op_compare, ATOM_ARG_MC}, {
1158 atom_op_switch, 0}, {
1159 atom_op_jump, ATOM_COND_ALWAYS}, {
1160 atom_op_jump, ATOM_COND_EQUAL}, {
1161 atom_op_jump, ATOM_COND_BELOW}, {
1162 atom_op_jump, ATOM_COND_ABOVE}, {
1163 atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1164 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1165 atom_op_jump, ATOM_COND_NOTEQUAL}, {
1166 atom_op_test, ATOM_ARG_REG}, {
1167 atom_op_test, ATOM_ARG_PS}, {
1168 atom_op_test, ATOM_ARG_WS}, {
1169 atom_op_test, ATOM_ARG_FB}, {
1170 atom_op_test, ATOM_ARG_PLL}, {
1171 atom_op_test, ATOM_ARG_MC}, {
1172 atom_op_delay, ATOM_UNIT_MILLISEC}, {
1173 atom_op_delay, ATOM_UNIT_MICROSEC}, {
1174 atom_op_calltable, 0}, {
1175 atom_op_repeat, 0}, {
1176 atom_op_clear, ATOM_ARG_REG}, {
1177 atom_op_clear, ATOM_ARG_PS}, {
1178 atom_op_clear, ATOM_ARG_WS}, {
1179 atom_op_clear, ATOM_ARG_FB}, {
1180 atom_op_clear, ATOM_ARG_PLL}, {
1181 atom_op_clear, ATOM_ARG_MC}, {
1182 atom_op_nop, 0}, {
1183 atom_op_eot, 0}, {
1184 atom_op_mask, ATOM_ARG_REG}, {
1185 atom_op_mask, ATOM_ARG_PS}, {
1186 atom_op_mask, ATOM_ARG_WS}, {
1187 atom_op_mask, ATOM_ARG_FB}, {
1188 atom_op_mask, ATOM_ARG_PLL}, {
1189 atom_op_mask, ATOM_ARG_MC}, {
1190 atom_op_postcard, 0}, {
1191 atom_op_beep, 0}, {
1192 atom_op_savereg, 0}, {
1193 atom_op_restorereg, 0}, {
1194 atom_op_setdatablock, 0}, {
1195 atom_op_xor, ATOM_ARG_REG}, {
1196 atom_op_xor, ATOM_ARG_PS}, {
1197 atom_op_xor, ATOM_ARG_WS}, {
1198 atom_op_xor, ATOM_ARG_FB}, {
1199 atom_op_xor, ATOM_ARG_PLL}, {
1200 atom_op_xor, ATOM_ARG_MC}, {
1201 atom_op_shl, ATOM_ARG_REG}, {
1202 atom_op_shl, ATOM_ARG_PS}, {
1203 atom_op_shl, ATOM_ARG_WS}, {
1204 atom_op_shl, ATOM_ARG_FB}, {
1205 atom_op_shl, ATOM_ARG_PLL}, {
1206 atom_op_shl, ATOM_ARG_MC}, {
1207 atom_op_shr, ATOM_ARG_REG}, {
1208 atom_op_shr, ATOM_ARG_PS}, {
1209 atom_op_shr, ATOM_ARG_WS}, {
1210 atom_op_shr, ATOM_ARG_FB}, {
1211 atom_op_shr, ATOM_ARG_PLL}, {
1212 atom_op_shr, ATOM_ARG_MC}, {
1213 atom_op_debug, 0}, {
1214 atom_op_processds, 0}, {
1215 atom_op_mul32, ATOM_ARG_PS}, {
1216 atom_op_mul32, ATOM_ARG_WS}, {
1217 atom_op_div32, ATOM_ARG_PS}, {
1218 atom_op_div32, ATOM_ARG_WS},
1219};
1220
1221static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t *params, int params_size)
1222{
1223 int base = CU16(ctx->cmd_table + 4 + 2 * index);
1224 int len, ws, ps, ptr;
1225 unsigned char op;
1226 atom_exec_context ectx;
1227 int ret = 0;
1228
1229 if (!base)
1230 return -EINVAL;
1231
1232 len = CU16(base + ATOM_CT_SIZE_PTR);
1233 ws = CU8(base + ATOM_CT_WS_PTR);
1234 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1235 ptr = base + ATOM_CT_CODE_PTR;
1236
1237 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1238
1239 ectx.ctx = ctx;
1240 ectx.ps_shift = ps / 4;
1241 ectx.start = base;
1242 ectx.ps = params;
1243 ectx.ps_size = params_size;
1244 ectx.abort = false;
1245 ectx.last_jump = 0;
1246 if (ws) {
1247 ectx.ws = kcalloc(4, ws, GFP_KERNEL);
1248 ectx.ws_size = ws;
1249 } else {
1250 ectx.ws = NULL;
1251 ectx.ws_size = 0;
1252 }
1253
1254 debug_depth++;
1255 while (1) {
1256 op = CU8(ptr++);
1257 if (op < ATOM_OP_NAMES_CNT)
1258 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1259 else
1260 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
1261 if (ectx.abort) {
1262 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1263 base, len, ws, ps, ptr - 1);
1264 ret = -EINVAL;
1265 goto free;
1266 }
1267
1268 if (op < ATOM_OP_CNT && op > 0)
1269 opcode_table[op].func(&ectx, &ptr,
1270 opcode_table[op].arg);
1271 else
1272 break;
1273
1274 if (op == ATOM_OP_EOT)
1275 break;
1276 }
1277 debug_depth--;
1278 SDEBUG("<<\n");
1279
1280free:
1281 if (ws)
1282 kfree(ectx.ws);
1283 return ret;
1284}
1285
1286int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t *params, int params_size)
1287{
1288 int r;
1289
1290 mutex_lock(&ctx->mutex);
1291 /* reset data block */
1292 ctx->data_block = 0;
1293 /* reset reg block */
1294 ctx->reg_block = 0;
1295 /* reset fb window */
1296 ctx->fb_base = 0;
1297 /* reset io mode */
1298 ctx->io_mode = ATOM_IO_MM;
1299 /* reset divmul */
1300 ctx->divmul[0] = 0;
1301 ctx->divmul[1] = 0;
1302 r = amdgpu_atom_execute_table_locked(ctx, index, params, params_size);
1303 mutex_unlock(&ctx->mutex);
1304 return r;
1305}
1306
1307static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1308
1309static void atom_index_iio(struct atom_context *ctx, int base)
1310{
1311 ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1312 if (!ctx->iio)
1313 return;
1314 while (CU8(base) == ATOM_IIO_START) {
1315 ctx->iio[CU8(base + 1)] = base + 2;
1316 base += 2;
1317 while (CU8(base) != ATOM_IIO_END)
1318 base += atom_iio_len[CU8(base)];
1319 base += 3;
1320 }
1321}
1322
1323static void atom_get_vbios_name(struct atom_context *ctx)
1324{
1325 unsigned char *p_rom;
1326 unsigned char str_num;
1327 unsigned short off_to_vbios_str;
1328 unsigned char *c_ptr;
1329 int name_size;
1330 int i;
1331
1332 const char *na = "--N/A--";
1333 char *back;
1334
1335 p_rom = ctx->bios;
1336
1337 str_num = *(p_rom + OFFSET_TO_GET_ATOMBIOS_NUMBER_OF_STRINGS);
1338 if (str_num != 0) {
1339 off_to_vbios_str =
1340 *(unsigned short *)(p_rom + OFFSET_TO_GET_ATOMBIOS_STRING_START);
1341
1342 c_ptr = (unsigned char *)(p_rom + off_to_vbios_str);
1343 } else {
1344 /* do not know where to find name */
1345 memcpy(ctx->name, na, 7);
1346 ctx->name[7] = 0;
1347 return;
1348 }
1349
1350 /*
1351 * skip the atombios strings, usually 4
1352 * 1st is P/N, 2nd is ASIC, 3rd is PCI type, 4th is Memory type
1353 */
1354 for (i = 0; i < str_num; i++) {
1355 while (*c_ptr != 0)
1356 c_ptr++;
1357 c_ptr++;
1358 }
1359
1360 /* skip the following 2 chars: 0x0D 0x0A */
1361 c_ptr += 2;
1362
1363 name_size = strnlen(c_ptr, STRLEN_LONG - 1);
1364 memcpy(ctx->name, c_ptr, name_size);
1365 back = ctx->name + name_size;
1366 while ((*--back) == ' ')
1367 ;
1368 *(back + 1) = '\0';
1369}
1370
1371static void atom_get_vbios_date(struct atom_context *ctx)
1372{
1373 unsigned char *p_rom;
1374 unsigned char *date_in_rom;
1375
1376 p_rom = ctx->bios;
1377
1378 date_in_rom = p_rom + OFFSET_TO_VBIOS_DATE;
1379
1380 ctx->date[0] = '2';
1381 ctx->date[1] = '0';
1382 ctx->date[2] = date_in_rom[6];
1383 ctx->date[3] = date_in_rom[7];
1384 ctx->date[4] = '/';
1385 ctx->date[5] = date_in_rom[0];
1386 ctx->date[6] = date_in_rom[1];
1387 ctx->date[7] = '/';
1388 ctx->date[8] = date_in_rom[3];
1389 ctx->date[9] = date_in_rom[4];
1390 ctx->date[10] = ' ';
1391 ctx->date[11] = date_in_rom[9];
1392 ctx->date[12] = date_in_rom[10];
1393 ctx->date[13] = date_in_rom[11];
1394 ctx->date[14] = date_in_rom[12];
1395 ctx->date[15] = date_in_rom[13];
1396 ctx->date[16] = '\0';
1397}
1398
1399static unsigned char *atom_find_str_in_rom(struct atom_context *ctx, char *str, int start,
1400 int end, int maxlen)
1401{
1402 unsigned long str_off;
1403 unsigned char *p_rom;
1404 unsigned short str_len;
1405
1406 str_off = 0;
1407 str_len = strnlen(str, maxlen);
1408 p_rom = ctx->bios;
1409
1410 for (; start <= end; ++start) {
1411 for (str_off = 0; str_off < str_len; ++str_off) {
1412 if (str[str_off] != *(p_rom + start + str_off))
1413 break;
1414 }
1415
1416 if (str_off == str_len || str[str_off] == 0)
1417 return p_rom + start;
1418 }
1419 return NULL;
1420}
1421
1422static void atom_get_vbios_pn(struct atom_context *ctx)
1423{
1424 unsigned char *p_rom;
1425 unsigned short off_to_vbios_str;
1426 unsigned char *vbios_str;
1427 int count;
1428
1429 off_to_vbios_str = 0;
1430 p_rom = ctx->bios;
1431
1432 if (*(p_rom + OFFSET_TO_GET_ATOMBIOS_NUMBER_OF_STRINGS) != 0) {
1433 off_to_vbios_str =
1434 *(unsigned short *)(p_rom + OFFSET_TO_GET_ATOMBIOS_STRING_START);
1435
1436 vbios_str = (unsigned char *)(p_rom + off_to_vbios_str);
1437 } else {
1438 vbios_str = p_rom + OFFSET_TO_VBIOS_PART_NUMBER;
1439 }
1440
1441 if (*vbios_str == 0) {
1442 vbios_str = atom_find_str_in_rom(ctx, BIOS_ATOM_PREFIX, 3, 1024, 64);
1443 if (vbios_str == NULL)
1444 vbios_str += sizeof(BIOS_ATOM_PREFIX) - 1;
1445 }
1446 if (vbios_str != NULL && *vbios_str == 0)
1447 vbios_str++;
1448
1449 if (vbios_str != NULL) {
1450 count = 0;
1451 while ((count < BIOS_STRING_LENGTH) && vbios_str[count] >= ' ' &&
1452 vbios_str[count] <= 'z') {
1453 ctx->vbios_pn[count] = vbios_str[count];
1454 count++;
1455 }
1456
1457 ctx->vbios_pn[count] = 0;
1458 }
1459
1460 pr_info("ATOM BIOS: %s\n", ctx->vbios_pn);
1461}
1462
1463static void atom_get_vbios_version(struct atom_context *ctx)
1464{
1465 unsigned short start = 3, end;
1466 unsigned char *vbios_ver;
1467 unsigned char *p_rom;
1468
1469 p_rom = ctx->bios;
1470 /* Search from strings offset if it's present */
1471 start = *(unsigned short *)(p_rom +
1472 OFFSET_TO_GET_ATOMBIOS_STRING_START);
1473
1474 /* Search till atom rom header start point */
1475 end = *(unsigned short *)(p_rom + OFFSET_TO_ATOM_ROM_HEADER_POINTER);
1476
1477 /* Use hardcoded offsets, if the offsets are not populated */
1478 if (end <= start) {
1479 start = 3;
1480 end = 1024;
1481 }
1482
1483 /* find anchor ATOMBIOSBK-AMD */
1484 vbios_ver =
1485 atom_find_str_in_rom(ctx, BIOS_VERSION_PREFIX, start, end, 64);
1486 if (vbios_ver != NULL) {
1487 /* skip ATOMBIOSBK-AMD VER */
1488 vbios_ver += 18;
1489 memcpy(ctx->vbios_ver_str, vbios_ver, STRLEN_NORMAL);
1490 } else {
1491 ctx->vbios_ver_str[0] = '\0';
1492 }
1493}
1494
1495struct atom_context *amdgpu_atom_parse(struct card_info *card, void *bios)
1496{
1497 int base;
1498 struct atom_context *ctx =
1499 kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1500 struct _ATOM_ROM_HEADER *atom_rom_header;
1501 struct _ATOM_MASTER_DATA_TABLE *master_table;
1502 struct _ATOM_FIRMWARE_INFO *atom_fw_info;
1503
1504 if (!ctx)
1505 return NULL;
1506
1507 ctx->card = card;
1508 ctx->bios = bios;
1509
1510 if (CU16(0) != ATOM_BIOS_MAGIC) {
1511 pr_info("Invalid BIOS magic\n");
1512 kfree(ctx);
1513 return NULL;
1514 }
1515 if (strncmp
1516 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1517 strlen(ATOM_ATI_MAGIC))) {
1518 pr_info("Invalid ATI magic\n");
1519 kfree(ctx);
1520 return NULL;
1521 }
1522
1523 base = CU16(ATOM_ROM_TABLE_PTR);
1524 if (strncmp
1525 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1526 strlen(ATOM_ROM_MAGIC))) {
1527 pr_info("Invalid ATOM magic\n");
1528 kfree(ctx);
1529 return NULL;
1530 }
1531
1532 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1533 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1534 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1535 if (!ctx->iio) {
1536 amdgpu_atom_destroy(ctx);
1537 return NULL;
1538 }
1539
1540 atom_rom_header = (struct _ATOM_ROM_HEADER *)CSTR(base);
1541 if (atom_rom_header->usMasterDataTableOffset != 0) {
1542 master_table = (struct _ATOM_MASTER_DATA_TABLE *)
1543 CSTR(atom_rom_header->usMasterDataTableOffset);
1544 if (master_table->ListOfDataTables.FirmwareInfo != 0) {
1545 atom_fw_info = (struct _ATOM_FIRMWARE_INFO *)
1546 CSTR(master_table->ListOfDataTables.FirmwareInfo);
1547 ctx->version = atom_fw_info->ulFirmwareRevision;
1548 }
1549 }
1550
1551 atom_get_vbios_name(ctx);
1552 atom_get_vbios_pn(ctx);
1553 atom_get_vbios_date(ctx);
1554 atom_get_vbios_version(ctx);
1555
1556 return ctx;
1557}
1558
1559int amdgpu_atom_asic_init(struct atom_context *ctx)
1560{
1561 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1562 uint32_t ps[16];
1563 int ret;
1564
1565 memset(ps, 0, 64);
1566
1567 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1568 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1569 if (!ps[0] || !ps[1])
1570 return 1;
1571
1572 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1573 return 1;
1574 ret = amdgpu_atom_execute_table(ctx, ATOM_CMD_INIT, ps, 16);
1575 if (ret)
1576 return ret;
1577
1578 memset(ps, 0, 64);
1579
1580 return ret;
1581}
1582
1583void amdgpu_atom_destroy(struct atom_context *ctx)
1584{
1585 kfree(ctx->iio);
1586 kfree(ctx);
1587}
1588
1589bool amdgpu_atom_parse_data_header(struct atom_context *ctx, int index,
1590 uint16_t *size, uint8_t *frev, uint8_t *crev,
1591 uint16_t *data_start)
1592{
1593 int offset = index * 2 + 4;
1594 int idx = CU16(ctx->data_table + offset);
1595 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1596
1597 if (!mdt[index])
1598 return false;
1599
1600 if (size)
1601 *size = CU16(idx);
1602 if (frev)
1603 *frev = CU8(idx + 2);
1604 if (crev)
1605 *crev = CU8(idx + 3);
1606 *data_start = idx;
1607 return true;
1608}
1609
1610bool amdgpu_atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t *frev,
1611 uint8_t *crev)
1612{
1613 int offset = index * 2 + 4;
1614 int idx = CU16(ctx->cmd_table + offset);
1615 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1616
1617 if (!mct[index])
1618 return false;
1619
1620 if (frev)
1621 *frev = CU8(idx + 2);
1622 if (crev)
1623 *crev = CU8(idx + 3);
1624 return true;
1625}
1626
1/*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Author: Stanislaw Skowronek
23 */
24
25#include <linux/module.h>
26#include <linux/sched.h>
27#include <linux/slab.h>
28#include <linux/string_helpers.h>
29
30#include <asm/unaligned.h>
31
32#include <drm/drm_util.h>
33
34#define ATOM_DEBUG
35
36#include "atomfirmware.h"
37#include "atom.h"
38#include "atom-names.h"
39#include "atom-bits.h"
40#include "amdgpu.h"
41
42#define ATOM_COND_ABOVE 0
43#define ATOM_COND_ABOVEOREQUAL 1
44#define ATOM_COND_ALWAYS 2
45#define ATOM_COND_BELOW 3
46#define ATOM_COND_BELOWOREQUAL 4
47#define ATOM_COND_EQUAL 5
48#define ATOM_COND_NOTEQUAL 6
49
50#define ATOM_PORT_ATI 0
51#define ATOM_PORT_PCI 1
52#define ATOM_PORT_SYSIO 2
53
54#define ATOM_UNIT_MICROSEC 0
55#define ATOM_UNIT_MILLISEC 1
56
57#define PLL_INDEX 2
58#define PLL_DATA 3
59
60#define ATOM_CMD_TIMEOUT_SEC 20
61
62typedef struct {
63 struct atom_context *ctx;
64 uint32_t *ps, *ws;
65 int ps_shift;
66 uint16_t start;
67 unsigned last_jump;
68 unsigned long last_jump_jiffies;
69 bool abort;
70} atom_exec_context;
71
72int amdgpu_atom_debug;
73static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t *params);
74int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t *params);
75
76static uint32_t atom_arg_mask[8] =
77 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
78 0xFF000000 };
79static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
80
81static int atom_dst_to_src[8][4] = {
82 /* translate destination alignment field to the source alignment encoding */
83 {0, 0, 0, 0},
84 {1, 2, 3, 0},
85 {1, 2, 3, 0},
86 {1, 2, 3, 0},
87 {4, 5, 6, 7},
88 {4, 5, 6, 7},
89 {4, 5, 6, 7},
90 {4, 5, 6, 7},
91};
92static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
93
94static int debug_depth;
95#ifdef ATOM_DEBUG
96static 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
109static 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->reg_read(ctx->card, CU16(base + 1));
121 base += 3;
122 break;
123 case ATOM_IIO_WRITE:
124 ctx->card->reg_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 pr_info("Unknown IIO opcode\n");
177 return 0;
178 }
179}
180
181static 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 pr_info("PCI registers are not implemented\n");
201 return 0;
202 case ATOM_IO_SYSIO:
203 pr_info("SYSIO registers are not implemented\n");
204 return 0;
205 default:
206 if (!(gctx->io_mode & 0x80)) {
207 pr_info("Bad IO mode\n");
208 return 0;
209 }
210 if (!gctx->iio[gctx->io_mode & 0x7F]) {
211 pr_info("Undefined indirect IO read method %d\n",
212 gctx->io_mode & 0x7F);
213 return 0;
214 }
215 val =
216 atom_iio_execute(gctx,
217 gctx->iio[gctx->io_mode & 0x7F],
218 idx, 0);
219 }
220 break;
221 case ATOM_ARG_PS:
222 idx = U8(*ptr);
223 (*ptr)++;
224 /* get_unaligned_le32 avoids unaligned accesses from atombios
225 * tables, noticed on a DEC Alpha. */
226 val = get_unaligned_le32((u32 *)&ctx->ps[idx]);
227 if (print)
228 DEBUG("PS[0x%02X,0x%04X]", idx, val);
229 break;
230 case ATOM_ARG_WS:
231 idx = U8(*ptr);
232 (*ptr)++;
233 if (print)
234 DEBUG("WS[0x%02X]", idx);
235 switch (idx) {
236 case ATOM_WS_QUOTIENT:
237 val = gctx->divmul[0];
238 break;
239 case ATOM_WS_REMAINDER:
240 val = gctx->divmul[1];
241 break;
242 case ATOM_WS_DATAPTR:
243 val = gctx->data_block;
244 break;
245 case ATOM_WS_SHIFT:
246 val = gctx->shift;
247 break;
248 case ATOM_WS_OR_MASK:
249 val = 1 << gctx->shift;
250 break;
251 case ATOM_WS_AND_MASK:
252 val = ~(1 << gctx->shift);
253 break;
254 case ATOM_WS_FB_WINDOW:
255 val = gctx->fb_base;
256 break;
257 case ATOM_WS_ATTRIBUTES:
258 val = gctx->io_attr;
259 break;
260 case ATOM_WS_REGPTR:
261 val = gctx->reg_block;
262 break;
263 default:
264 val = ctx->ws[idx];
265 }
266 break;
267 case ATOM_ARG_ID:
268 idx = U16(*ptr);
269 (*ptr) += 2;
270 if (print) {
271 if (gctx->data_block)
272 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
273 else
274 DEBUG("ID[0x%04X]", idx);
275 }
276 val = U32(idx + gctx->data_block);
277 break;
278 case ATOM_ARG_FB:
279 idx = U8(*ptr);
280 (*ptr)++;
281 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
282 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n",
283 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
284 val = 0;
285 } else
286 val = gctx->scratch[(gctx->fb_base / 4) + idx];
287 if (print)
288 DEBUG("FB[0x%02X]", idx);
289 break;
290 case ATOM_ARG_IMM:
291 switch (align) {
292 case ATOM_SRC_DWORD:
293 val = U32(*ptr);
294 (*ptr) += 4;
295 if (print)
296 DEBUG("IMM 0x%08X\n", val);
297 return val;
298 case ATOM_SRC_WORD0:
299 case ATOM_SRC_WORD8:
300 case ATOM_SRC_WORD16:
301 val = U16(*ptr);
302 (*ptr) += 2;
303 if (print)
304 DEBUG("IMM 0x%04X\n", val);
305 return val;
306 case ATOM_SRC_BYTE0:
307 case ATOM_SRC_BYTE8:
308 case ATOM_SRC_BYTE16:
309 case ATOM_SRC_BYTE24:
310 val = U8(*ptr);
311 (*ptr)++;
312 if (print)
313 DEBUG("IMM 0x%02X\n", val);
314 return val;
315 }
316 return 0;
317 case ATOM_ARG_PLL:
318 idx = U8(*ptr);
319 (*ptr)++;
320 if (print)
321 DEBUG("PLL[0x%02X]", idx);
322 val = gctx->card->pll_read(gctx->card, idx);
323 break;
324 case ATOM_ARG_MC:
325 idx = U8(*ptr);
326 (*ptr)++;
327 if (print)
328 DEBUG("MC[0x%02X]", idx);
329 val = gctx->card->mc_read(gctx->card, idx);
330 break;
331 }
332 if (saved)
333 *saved = val;
334 val &= atom_arg_mask[align];
335 val >>= atom_arg_shift[align];
336 if (print)
337 switch (align) {
338 case ATOM_SRC_DWORD:
339 DEBUG(".[31:0] -> 0x%08X\n", val);
340 break;
341 case ATOM_SRC_WORD0:
342 DEBUG(".[15:0] -> 0x%04X\n", val);
343 break;
344 case ATOM_SRC_WORD8:
345 DEBUG(".[23:8] -> 0x%04X\n", val);
346 break;
347 case ATOM_SRC_WORD16:
348 DEBUG(".[31:16] -> 0x%04X\n", val);
349 break;
350 case ATOM_SRC_BYTE0:
351 DEBUG(".[7:0] -> 0x%02X\n", val);
352 break;
353 case ATOM_SRC_BYTE8:
354 DEBUG(".[15:8] -> 0x%02X\n", val);
355 break;
356 case ATOM_SRC_BYTE16:
357 DEBUG(".[23:16] -> 0x%02X\n", val);
358 break;
359 case ATOM_SRC_BYTE24:
360 DEBUG(".[31:24] -> 0x%02X\n", val);
361 break;
362 }
363 return val;
364}
365
366static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
367{
368 uint32_t align = (attr >> 3) & 7, arg = attr & 7;
369 switch (arg) {
370 case ATOM_ARG_REG:
371 case ATOM_ARG_ID:
372 (*ptr) += 2;
373 break;
374 case ATOM_ARG_PLL:
375 case ATOM_ARG_MC:
376 case ATOM_ARG_PS:
377 case ATOM_ARG_WS:
378 case ATOM_ARG_FB:
379 (*ptr)++;
380 break;
381 case ATOM_ARG_IMM:
382 switch (align) {
383 case ATOM_SRC_DWORD:
384 (*ptr) += 4;
385 return;
386 case ATOM_SRC_WORD0:
387 case ATOM_SRC_WORD8:
388 case ATOM_SRC_WORD16:
389 (*ptr) += 2;
390 return;
391 case ATOM_SRC_BYTE0:
392 case ATOM_SRC_BYTE8:
393 case ATOM_SRC_BYTE16:
394 case ATOM_SRC_BYTE24:
395 (*ptr)++;
396 return;
397 }
398 return;
399 }
400}
401
402static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
403{
404 return atom_get_src_int(ctx, attr, ptr, NULL, 1);
405}
406
407static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
408{
409 uint32_t val = 0xCDCDCDCD;
410
411 switch (align) {
412 case ATOM_SRC_DWORD:
413 val = U32(*ptr);
414 (*ptr) += 4;
415 break;
416 case ATOM_SRC_WORD0:
417 case ATOM_SRC_WORD8:
418 case ATOM_SRC_WORD16:
419 val = U16(*ptr);
420 (*ptr) += 2;
421 break;
422 case ATOM_SRC_BYTE0:
423 case ATOM_SRC_BYTE8:
424 case ATOM_SRC_BYTE16:
425 case ATOM_SRC_BYTE24:
426 val = U8(*ptr);
427 (*ptr)++;
428 break;
429 }
430 return val;
431}
432
433static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
434 int *ptr, uint32_t *saved, int print)
435{
436 return atom_get_src_int(ctx,
437 arg | atom_dst_to_src[(attr >> 3) &
438 7][(attr >> 6) & 3] << 3,
439 ptr, saved, print);
440}
441
442static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
443{
444 atom_skip_src_int(ctx,
445 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
446 3] << 3, ptr);
447}
448
449static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
450 int *ptr, uint32_t val, uint32_t saved)
451{
452 uint32_t align =
453 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
454 val, idx;
455 struct atom_context *gctx = ctx->ctx;
456 old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
457 val <<= atom_arg_shift[align];
458 val &= atom_arg_mask[align];
459 saved &= ~atom_arg_mask[align];
460 val |= saved;
461 switch (arg) {
462 case ATOM_ARG_REG:
463 idx = U16(*ptr);
464 (*ptr) += 2;
465 DEBUG("REG[0x%04X]", idx);
466 idx += gctx->reg_block;
467 switch (gctx->io_mode) {
468 case ATOM_IO_MM:
469 if (idx == 0)
470 gctx->card->reg_write(gctx->card, idx,
471 val << 2);
472 else
473 gctx->card->reg_write(gctx->card, idx, val);
474 break;
475 case ATOM_IO_PCI:
476 pr_info("PCI registers are not implemented\n");
477 return;
478 case ATOM_IO_SYSIO:
479 pr_info("SYSIO registers are not implemented\n");
480 return;
481 default:
482 if (!(gctx->io_mode & 0x80)) {
483 pr_info("Bad IO mode\n");
484 return;
485 }
486 if (!gctx->iio[gctx->io_mode & 0xFF]) {
487 pr_info("Undefined indirect IO write method %d\n",
488 gctx->io_mode & 0x7F);
489 return;
490 }
491 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
492 idx, val);
493 }
494 break;
495 case ATOM_ARG_PS:
496 idx = U8(*ptr);
497 (*ptr)++;
498 DEBUG("PS[0x%02X]", idx);
499 ctx->ps[idx] = cpu_to_le32(val);
500 break;
501 case ATOM_ARG_WS:
502 idx = U8(*ptr);
503 (*ptr)++;
504 DEBUG("WS[0x%02X]", idx);
505 switch (idx) {
506 case ATOM_WS_QUOTIENT:
507 gctx->divmul[0] = val;
508 break;
509 case ATOM_WS_REMAINDER:
510 gctx->divmul[1] = val;
511 break;
512 case ATOM_WS_DATAPTR:
513 gctx->data_block = val;
514 break;
515 case ATOM_WS_SHIFT:
516 gctx->shift = val;
517 break;
518 case ATOM_WS_OR_MASK:
519 case ATOM_WS_AND_MASK:
520 break;
521 case ATOM_WS_FB_WINDOW:
522 gctx->fb_base = val;
523 break;
524 case ATOM_WS_ATTRIBUTES:
525 gctx->io_attr = val;
526 break;
527 case ATOM_WS_REGPTR:
528 gctx->reg_block = val;
529 break;
530 default:
531 ctx->ws[idx] = val;
532 }
533 break;
534 case ATOM_ARG_FB:
535 idx = U8(*ptr);
536 (*ptr)++;
537 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
538 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n",
539 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
540 } else
541 gctx->scratch[(gctx->fb_base / 4) + idx] = val;
542 DEBUG("FB[0x%02X]", idx);
543 break;
544 case ATOM_ARG_PLL:
545 idx = U8(*ptr);
546 (*ptr)++;
547 DEBUG("PLL[0x%02X]", idx);
548 gctx->card->pll_write(gctx->card, idx, val);
549 break;
550 case ATOM_ARG_MC:
551 idx = U8(*ptr);
552 (*ptr)++;
553 DEBUG("MC[0x%02X]", idx);
554 gctx->card->mc_write(gctx->card, idx, val);
555 return;
556 }
557 switch (align) {
558 case ATOM_SRC_DWORD:
559 DEBUG(".[31:0] <- 0x%08X\n", old_val);
560 break;
561 case ATOM_SRC_WORD0:
562 DEBUG(".[15:0] <- 0x%04X\n", old_val);
563 break;
564 case ATOM_SRC_WORD8:
565 DEBUG(".[23:8] <- 0x%04X\n", old_val);
566 break;
567 case ATOM_SRC_WORD16:
568 DEBUG(".[31:16] <- 0x%04X\n", old_val);
569 break;
570 case ATOM_SRC_BYTE0:
571 DEBUG(".[7:0] <- 0x%02X\n", old_val);
572 break;
573 case ATOM_SRC_BYTE8:
574 DEBUG(".[15:8] <- 0x%02X\n", old_val);
575 break;
576 case ATOM_SRC_BYTE16:
577 DEBUG(".[23:16] <- 0x%02X\n", old_val);
578 break;
579 case ATOM_SRC_BYTE24:
580 DEBUG(".[31:24] <- 0x%02X\n", old_val);
581 break;
582 }
583}
584
585static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
586{
587 uint8_t attr = U8((*ptr)++);
588 uint32_t dst, src, saved;
589 int dptr = *ptr;
590 SDEBUG(" dst: ");
591 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
592 SDEBUG(" src: ");
593 src = atom_get_src(ctx, attr, ptr);
594 dst += src;
595 SDEBUG(" dst: ");
596 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
597}
598
599static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
600{
601 uint8_t attr = U8((*ptr)++);
602 uint32_t dst, src, saved;
603 int dptr = *ptr;
604 SDEBUG(" dst: ");
605 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
606 SDEBUG(" src: ");
607 src = atom_get_src(ctx, attr, ptr);
608 dst &= src;
609 SDEBUG(" dst: ");
610 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
611}
612
613static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
614{
615 printk("ATOM BIOS beeped!\n");
616}
617
618static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
619{
620 int idx = U8((*ptr)++);
621 int r = 0;
622
623 if (idx < ATOM_TABLE_NAMES_CNT)
624 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]);
625 else
626 SDEBUG(" table: %d\n", idx);
627 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
628 r = amdgpu_atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift);
629 if (r) {
630 ctx->abort = true;
631 }
632}
633
634static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
635{
636 uint8_t attr = U8((*ptr)++);
637 uint32_t saved;
638 int dptr = *ptr;
639 attr &= 0x38;
640 attr |= atom_def_dst[attr >> 3] << 6;
641 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
642 SDEBUG(" dst: ");
643 atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
644}
645
646static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
647{
648 uint8_t attr = U8((*ptr)++);
649 uint32_t dst, src;
650 SDEBUG(" src1: ");
651 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
652 SDEBUG(" src2: ");
653 src = atom_get_src(ctx, attr, ptr);
654 ctx->ctx->cs_equal = (dst == src);
655 ctx->ctx->cs_above = (dst > src);
656 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
657 ctx->ctx->cs_above ? "GT" : "LE");
658}
659
660static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
661{
662 unsigned count = U8((*ptr)++);
663 SDEBUG(" count: %d\n", count);
664 if (arg == ATOM_UNIT_MICROSEC)
665 udelay(count);
666 else if (!drm_can_sleep())
667 mdelay(count);
668 else
669 msleep(count);
670}
671
672static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
673{
674 uint8_t attr = U8((*ptr)++);
675 uint32_t dst, src;
676 SDEBUG(" src1: ");
677 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
678 SDEBUG(" src2: ");
679 src = atom_get_src(ctx, attr, ptr);
680 if (src != 0) {
681 ctx->ctx->divmul[0] = dst / src;
682 ctx->ctx->divmul[1] = dst % src;
683 } else {
684 ctx->ctx->divmul[0] = 0;
685 ctx->ctx->divmul[1] = 0;
686 }
687}
688
689static void atom_op_div32(atom_exec_context *ctx, int *ptr, int arg)
690{
691 uint64_t val64;
692 uint8_t attr = U8((*ptr)++);
693 uint32_t dst, src;
694 SDEBUG(" src1: ");
695 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
696 SDEBUG(" src2: ");
697 src = atom_get_src(ctx, attr, ptr);
698 if (src != 0) {
699 val64 = dst;
700 val64 |= ((uint64_t)ctx->ctx->divmul[1]) << 32;
701 do_div(val64, src);
702 ctx->ctx->divmul[0] = lower_32_bits(val64);
703 ctx->ctx->divmul[1] = upper_32_bits(val64);
704 } else {
705 ctx->ctx->divmul[0] = 0;
706 ctx->ctx->divmul[1] = 0;
707 }
708}
709
710static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
711{
712 /* functionally, a nop */
713}
714
715static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
716{
717 int execute = 0, target = U16(*ptr);
718 unsigned long cjiffies;
719
720 (*ptr) += 2;
721 switch (arg) {
722 case ATOM_COND_ABOVE:
723 execute = ctx->ctx->cs_above;
724 break;
725 case ATOM_COND_ABOVEOREQUAL:
726 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
727 break;
728 case ATOM_COND_ALWAYS:
729 execute = 1;
730 break;
731 case ATOM_COND_BELOW:
732 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
733 break;
734 case ATOM_COND_BELOWOREQUAL:
735 execute = !ctx->ctx->cs_above;
736 break;
737 case ATOM_COND_EQUAL:
738 execute = ctx->ctx->cs_equal;
739 break;
740 case ATOM_COND_NOTEQUAL:
741 execute = !ctx->ctx->cs_equal;
742 break;
743 }
744 if (arg != ATOM_COND_ALWAYS)
745 SDEBUG(" taken: %s\n", str_yes_no(execute));
746 SDEBUG(" target: 0x%04X\n", target);
747 if (execute) {
748 if (ctx->last_jump == (ctx->start + target)) {
749 cjiffies = jiffies;
750 if (time_after(cjiffies, ctx->last_jump_jiffies)) {
751 cjiffies -= ctx->last_jump_jiffies;
752 if ((jiffies_to_msecs(cjiffies) > ATOM_CMD_TIMEOUT_SEC*1000)) {
753 DRM_ERROR("atombios stuck in loop for more than %dsecs aborting\n",
754 ATOM_CMD_TIMEOUT_SEC);
755 ctx->abort = true;
756 }
757 } else {
758 /* jiffies wrap around we will just wait a little longer */
759 ctx->last_jump_jiffies = jiffies;
760 }
761 } else {
762 ctx->last_jump = ctx->start + target;
763 ctx->last_jump_jiffies = jiffies;
764 }
765 *ptr = ctx->start + target;
766 }
767}
768
769static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
770{
771 uint8_t attr = U8((*ptr)++);
772 uint32_t dst, mask, src, saved;
773 int dptr = *ptr;
774 SDEBUG(" dst: ");
775 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
776 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
777 SDEBUG(" mask: 0x%08x", mask);
778 SDEBUG(" src: ");
779 src = atom_get_src(ctx, attr, ptr);
780 dst &= mask;
781 dst |= src;
782 SDEBUG(" dst: ");
783 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
784}
785
786static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
787{
788 uint8_t attr = U8((*ptr)++);
789 uint32_t src, saved;
790 int dptr = *ptr;
791 if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
792 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
793 else {
794 atom_skip_dst(ctx, arg, attr, ptr);
795 saved = 0xCDCDCDCD;
796 }
797 SDEBUG(" src: ");
798 src = atom_get_src(ctx, attr, ptr);
799 SDEBUG(" dst: ");
800 atom_put_dst(ctx, arg, attr, &dptr, src, saved);
801}
802
803static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
804{
805 uint8_t attr = U8((*ptr)++);
806 uint32_t dst, src;
807 SDEBUG(" src1: ");
808 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
809 SDEBUG(" src2: ");
810 src = atom_get_src(ctx, attr, ptr);
811 ctx->ctx->divmul[0] = dst * src;
812}
813
814static void atom_op_mul32(atom_exec_context *ctx, int *ptr, int arg)
815{
816 uint64_t val64;
817 uint8_t attr = U8((*ptr)++);
818 uint32_t dst, src;
819 SDEBUG(" src1: ");
820 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
821 SDEBUG(" src2: ");
822 src = atom_get_src(ctx, attr, ptr);
823 val64 = (uint64_t)dst * (uint64_t)src;
824 ctx->ctx->divmul[0] = lower_32_bits(val64);
825 ctx->ctx->divmul[1] = upper_32_bits(val64);
826}
827
828static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
829{
830 /* nothing */
831}
832
833static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
834{
835 uint8_t attr = U8((*ptr)++);
836 uint32_t dst, src, saved;
837 int dptr = *ptr;
838 SDEBUG(" dst: ");
839 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
840 SDEBUG(" src: ");
841 src = atom_get_src(ctx, attr, ptr);
842 dst |= src;
843 SDEBUG(" dst: ");
844 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
845}
846
847static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
848{
849 uint8_t val = U8((*ptr)++);
850 SDEBUG("POST card output: 0x%02X\n", val);
851}
852
853static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
854{
855 pr_info("unimplemented!\n");
856}
857
858static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
859{
860 pr_info("unimplemented!\n");
861}
862
863static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
864{
865 pr_info("unimplemented!\n");
866}
867
868static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
869{
870 int idx = U8(*ptr);
871 (*ptr)++;
872 SDEBUG(" block: %d\n", idx);
873 if (!idx)
874 ctx->ctx->data_block = 0;
875 else if (idx == 255)
876 ctx->ctx->data_block = ctx->start;
877 else
878 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
879 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block);
880}
881
882static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
883{
884 uint8_t attr = U8((*ptr)++);
885 SDEBUG(" fb_base: ");
886 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
887}
888
889static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
890{
891 int port;
892 switch (arg) {
893 case ATOM_PORT_ATI:
894 port = U16(*ptr);
895 if (port < ATOM_IO_NAMES_CNT)
896 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]);
897 else
898 SDEBUG(" port: %d\n", port);
899 if (!port)
900 ctx->ctx->io_mode = ATOM_IO_MM;
901 else
902 ctx->ctx->io_mode = ATOM_IO_IIO | port;
903 (*ptr) += 2;
904 break;
905 case ATOM_PORT_PCI:
906 ctx->ctx->io_mode = ATOM_IO_PCI;
907 (*ptr)++;
908 break;
909 case ATOM_PORT_SYSIO:
910 ctx->ctx->io_mode = ATOM_IO_SYSIO;
911 (*ptr)++;
912 break;
913 }
914}
915
916static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
917{
918 ctx->ctx->reg_block = U16(*ptr);
919 (*ptr) += 2;
920 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block);
921}
922
923static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
924{
925 uint8_t attr = U8((*ptr)++), shift;
926 uint32_t saved, dst;
927 int dptr = *ptr;
928 attr &= 0x38;
929 attr |= atom_def_dst[attr >> 3] << 6;
930 SDEBUG(" dst: ");
931 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
932 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
933 SDEBUG(" shift: %d\n", shift);
934 dst <<= shift;
935 SDEBUG(" dst: ");
936 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
937}
938
939static void atom_op_shift_right(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 attr &= 0x38;
945 attr |= atom_def_dst[attr >> 3] << 6;
946 SDEBUG(" dst: ");
947 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
948 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
949 SDEBUG(" shift: %d\n", shift);
950 dst >>= shift;
951 SDEBUG(" dst: ");
952 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
953}
954
955static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
956{
957 uint8_t attr = U8((*ptr)++), shift;
958 uint32_t saved, dst;
959 int dptr = *ptr;
960 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
961 SDEBUG(" dst: ");
962 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
963 /* op needs to full dst value */
964 dst = saved;
965 shift = atom_get_src(ctx, attr, ptr);
966 SDEBUG(" shift: %d\n", shift);
967 dst <<= shift;
968 dst &= atom_arg_mask[dst_align];
969 dst >>= atom_arg_shift[dst_align];
970 SDEBUG(" dst: ");
971 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
972}
973
974static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
975{
976 uint8_t attr = U8((*ptr)++), shift;
977 uint32_t saved, dst;
978 int dptr = *ptr;
979 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
980 SDEBUG(" dst: ");
981 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
982 /* op needs to full dst value */
983 dst = saved;
984 shift = atom_get_src(ctx, attr, ptr);
985 SDEBUG(" shift: %d\n", shift);
986 dst >>= shift;
987 dst &= atom_arg_mask[dst_align];
988 dst >>= atom_arg_shift[dst_align];
989 SDEBUG(" dst: ");
990 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
991}
992
993static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
994{
995 uint8_t attr = U8((*ptr)++);
996 uint32_t dst, src, saved;
997 int dptr = *ptr;
998 SDEBUG(" dst: ");
999 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1000 SDEBUG(" src: ");
1001 src = atom_get_src(ctx, attr, ptr);
1002 dst -= src;
1003 SDEBUG(" dst: ");
1004 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1005}
1006
1007static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
1008{
1009 uint8_t attr = U8((*ptr)++);
1010 uint32_t src, val, target;
1011 SDEBUG(" switch: ");
1012 src = atom_get_src(ctx, attr, ptr);
1013 while (U16(*ptr) != ATOM_CASE_END)
1014 if (U8(*ptr) == ATOM_CASE_MAGIC) {
1015 (*ptr)++;
1016 SDEBUG(" case: ");
1017 val =
1018 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
1019 ptr);
1020 target = U16(*ptr);
1021 if (val == src) {
1022 SDEBUG(" target: %04X\n", target);
1023 *ptr = ctx->start + target;
1024 return;
1025 }
1026 (*ptr) += 2;
1027 } else {
1028 pr_info("Bad case\n");
1029 return;
1030 }
1031 (*ptr) += 2;
1032}
1033
1034static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
1035{
1036 uint8_t attr = U8((*ptr)++);
1037 uint32_t dst, src;
1038 SDEBUG(" src1: ");
1039 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
1040 SDEBUG(" src2: ");
1041 src = atom_get_src(ctx, attr, ptr);
1042 ctx->ctx->cs_equal = ((dst & src) == 0);
1043 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
1044}
1045
1046static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
1047{
1048 uint8_t attr = U8((*ptr)++);
1049 uint32_t dst, src, saved;
1050 int dptr = *ptr;
1051 SDEBUG(" dst: ");
1052 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1053 SDEBUG(" src: ");
1054 src = atom_get_src(ctx, attr, ptr);
1055 dst ^= src;
1056 SDEBUG(" dst: ");
1057 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1058}
1059
1060static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1061{
1062 uint8_t val = U8((*ptr)++);
1063 SDEBUG("DEBUG output: 0x%02X\n", val);
1064}
1065
1066static void atom_op_processds(atom_exec_context *ctx, int *ptr, int arg)
1067{
1068 uint16_t val = U16(*ptr);
1069 (*ptr) += val + 2;
1070 SDEBUG("PROCESSDS output: 0x%02X\n", val);
1071}
1072
1073static struct {
1074 void (*func) (atom_exec_context *, int *, int);
1075 int arg;
1076} opcode_table[ATOM_OP_CNT] = {
1077 {
1078 NULL, 0}, {
1079 atom_op_move, ATOM_ARG_REG}, {
1080 atom_op_move, ATOM_ARG_PS}, {
1081 atom_op_move, ATOM_ARG_WS}, {
1082 atom_op_move, ATOM_ARG_FB}, {
1083 atom_op_move, ATOM_ARG_PLL}, {
1084 atom_op_move, ATOM_ARG_MC}, {
1085 atom_op_and, ATOM_ARG_REG}, {
1086 atom_op_and, ATOM_ARG_PS}, {
1087 atom_op_and, ATOM_ARG_WS}, {
1088 atom_op_and, ATOM_ARG_FB}, {
1089 atom_op_and, ATOM_ARG_PLL}, {
1090 atom_op_and, ATOM_ARG_MC}, {
1091 atom_op_or, ATOM_ARG_REG}, {
1092 atom_op_or, ATOM_ARG_PS}, {
1093 atom_op_or, ATOM_ARG_WS}, {
1094 atom_op_or, ATOM_ARG_FB}, {
1095 atom_op_or, ATOM_ARG_PLL}, {
1096 atom_op_or, ATOM_ARG_MC}, {
1097 atom_op_shift_left, ATOM_ARG_REG}, {
1098 atom_op_shift_left, ATOM_ARG_PS}, {
1099 atom_op_shift_left, ATOM_ARG_WS}, {
1100 atom_op_shift_left, ATOM_ARG_FB}, {
1101 atom_op_shift_left, ATOM_ARG_PLL}, {
1102 atom_op_shift_left, ATOM_ARG_MC}, {
1103 atom_op_shift_right, ATOM_ARG_REG}, {
1104 atom_op_shift_right, ATOM_ARG_PS}, {
1105 atom_op_shift_right, ATOM_ARG_WS}, {
1106 atom_op_shift_right, ATOM_ARG_FB}, {
1107 atom_op_shift_right, ATOM_ARG_PLL}, {
1108 atom_op_shift_right, ATOM_ARG_MC}, {
1109 atom_op_mul, ATOM_ARG_REG}, {
1110 atom_op_mul, ATOM_ARG_PS}, {
1111 atom_op_mul, ATOM_ARG_WS}, {
1112 atom_op_mul, ATOM_ARG_FB}, {
1113 atom_op_mul, ATOM_ARG_PLL}, {
1114 atom_op_mul, ATOM_ARG_MC}, {
1115 atom_op_div, ATOM_ARG_REG}, {
1116 atom_op_div, ATOM_ARG_PS}, {
1117 atom_op_div, ATOM_ARG_WS}, {
1118 atom_op_div, ATOM_ARG_FB}, {
1119 atom_op_div, ATOM_ARG_PLL}, {
1120 atom_op_div, ATOM_ARG_MC}, {
1121 atom_op_add, ATOM_ARG_REG}, {
1122 atom_op_add, ATOM_ARG_PS}, {
1123 atom_op_add, ATOM_ARG_WS}, {
1124 atom_op_add, ATOM_ARG_FB}, {
1125 atom_op_add, ATOM_ARG_PLL}, {
1126 atom_op_add, ATOM_ARG_MC}, {
1127 atom_op_sub, ATOM_ARG_REG}, {
1128 atom_op_sub, ATOM_ARG_PS}, {
1129 atom_op_sub, ATOM_ARG_WS}, {
1130 atom_op_sub, ATOM_ARG_FB}, {
1131 atom_op_sub, ATOM_ARG_PLL}, {
1132 atom_op_sub, ATOM_ARG_MC}, {
1133 atom_op_setport, ATOM_PORT_ATI}, {
1134 atom_op_setport, ATOM_PORT_PCI}, {
1135 atom_op_setport, ATOM_PORT_SYSIO}, {
1136 atom_op_setregblock, 0}, {
1137 atom_op_setfbbase, 0}, {
1138 atom_op_compare, ATOM_ARG_REG}, {
1139 atom_op_compare, ATOM_ARG_PS}, {
1140 atom_op_compare, ATOM_ARG_WS}, {
1141 atom_op_compare, ATOM_ARG_FB}, {
1142 atom_op_compare, ATOM_ARG_PLL}, {
1143 atom_op_compare, ATOM_ARG_MC}, {
1144 atom_op_switch, 0}, {
1145 atom_op_jump, ATOM_COND_ALWAYS}, {
1146 atom_op_jump, ATOM_COND_EQUAL}, {
1147 atom_op_jump, ATOM_COND_BELOW}, {
1148 atom_op_jump, ATOM_COND_ABOVE}, {
1149 atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1150 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1151 atom_op_jump, ATOM_COND_NOTEQUAL}, {
1152 atom_op_test, ATOM_ARG_REG}, {
1153 atom_op_test, ATOM_ARG_PS}, {
1154 atom_op_test, ATOM_ARG_WS}, {
1155 atom_op_test, ATOM_ARG_FB}, {
1156 atom_op_test, ATOM_ARG_PLL}, {
1157 atom_op_test, ATOM_ARG_MC}, {
1158 atom_op_delay, ATOM_UNIT_MILLISEC}, {
1159 atom_op_delay, ATOM_UNIT_MICROSEC}, {
1160 atom_op_calltable, 0}, {
1161 atom_op_repeat, 0}, {
1162 atom_op_clear, ATOM_ARG_REG}, {
1163 atom_op_clear, ATOM_ARG_PS}, {
1164 atom_op_clear, ATOM_ARG_WS}, {
1165 atom_op_clear, ATOM_ARG_FB}, {
1166 atom_op_clear, ATOM_ARG_PLL}, {
1167 atom_op_clear, ATOM_ARG_MC}, {
1168 atom_op_nop, 0}, {
1169 atom_op_eot, 0}, {
1170 atom_op_mask, ATOM_ARG_REG}, {
1171 atom_op_mask, ATOM_ARG_PS}, {
1172 atom_op_mask, ATOM_ARG_WS}, {
1173 atom_op_mask, ATOM_ARG_FB}, {
1174 atom_op_mask, ATOM_ARG_PLL}, {
1175 atom_op_mask, ATOM_ARG_MC}, {
1176 atom_op_postcard, 0}, {
1177 atom_op_beep, 0}, {
1178 atom_op_savereg, 0}, {
1179 atom_op_restorereg, 0}, {
1180 atom_op_setdatablock, 0}, {
1181 atom_op_xor, ATOM_ARG_REG}, {
1182 atom_op_xor, ATOM_ARG_PS}, {
1183 atom_op_xor, ATOM_ARG_WS}, {
1184 atom_op_xor, ATOM_ARG_FB}, {
1185 atom_op_xor, ATOM_ARG_PLL}, {
1186 atom_op_xor, ATOM_ARG_MC}, {
1187 atom_op_shl, ATOM_ARG_REG}, {
1188 atom_op_shl, ATOM_ARG_PS}, {
1189 atom_op_shl, ATOM_ARG_WS}, {
1190 atom_op_shl, ATOM_ARG_FB}, {
1191 atom_op_shl, ATOM_ARG_PLL}, {
1192 atom_op_shl, ATOM_ARG_MC}, {
1193 atom_op_shr, ATOM_ARG_REG}, {
1194 atom_op_shr, ATOM_ARG_PS}, {
1195 atom_op_shr, ATOM_ARG_WS}, {
1196 atom_op_shr, ATOM_ARG_FB}, {
1197 atom_op_shr, ATOM_ARG_PLL}, {
1198 atom_op_shr, ATOM_ARG_MC}, {
1199 atom_op_debug, 0}, {
1200 atom_op_processds, 0}, {
1201 atom_op_mul32, ATOM_ARG_PS}, {
1202 atom_op_mul32, ATOM_ARG_WS}, {
1203 atom_op_div32, ATOM_ARG_PS}, {
1204 atom_op_div32, ATOM_ARG_WS},
1205};
1206
1207static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t *params)
1208{
1209 int base = CU16(ctx->cmd_table + 4 + 2 * index);
1210 int len, ws, ps, ptr;
1211 unsigned char op;
1212 atom_exec_context ectx;
1213 int ret = 0;
1214
1215 if (!base)
1216 return -EINVAL;
1217
1218 len = CU16(base + ATOM_CT_SIZE_PTR);
1219 ws = CU8(base + ATOM_CT_WS_PTR);
1220 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1221 ptr = base + ATOM_CT_CODE_PTR;
1222
1223 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1224
1225 ectx.ctx = ctx;
1226 ectx.ps_shift = ps / 4;
1227 ectx.start = base;
1228 ectx.ps = params;
1229 ectx.abort = false;
1230 ectx.last_jump = 0;
1231 if (ws)
1232 ectx.ws = kcalloc(4, ws, GFP_KERNEL);
1233 else
1234 ectx.ws = NULL;
1235
1236 debug_depth++;
1237 while (1) {
1238 op = CU8(ptr++);
1239 if (op < ATOM_OP_NAMES_CNT)
1240 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1241 else
1242 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
1243 if (ectx.abort) {
1244 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1245 base, len, ws, ps, ptr - 1);
1246 ret = -EINVAL;
1247 goto free;
1248 }
1249
1250 if (op < ATOM_OP_CNT && op > 0)
1251 opcode_table[op].func(&ectx, &ptr,
1252 opcode_table[op].arg);
1253 else
1254 break;
1255
1256 if (op == ATOM_OP_EOT)
1257 break;
1258 }
1259 debug_depth--;
1260 SDEBUG("<<\n");
1261
1262free:
1263 if (ws)
1264 kfree(ectx.ws);
1265 return ret;
1266}
1267
1268int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t *params)
1269{
1270 int r;
1271
1272 mutex_lock(&ctx->mutex);
1273 /* reset data block */
1274 ctx->data_block = 0;
1275 /* reset reg block */
1276 ctx->reg_block = 0;
1277 /* reset fb window */
1278 ctx->fb_base = 0;
1279 /* reset io mode */
1280 ctx->io_mode = ATOM_IO_MM;
1281 /* reset divmul */
1282 ctx->divmul[0] = 0;
1283 ctx->divmul[1] = 0;
1284 r = amdgpu_atom_execute_table_locked(ctx, index, params);
1285 mutex_unlock(&ctx->mutex);
1286 return r;
1287}
1288
1289static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1290
1291static void atom_index_iio(struct atom_context *ctx, int base)
1292{
1293 ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1294 if (!ctx->iio)
1295 return;
1296 while (CU8(base) == ATOM_IIO_START) {
1297 ctx->iio[CU8(base + 1)] = base + 2;
1298 base += 2;
1299 while (CU8(base) != ATOM_IIO_END)
1300 base += atom_iio_len[CU8(base)];
1301 base += 3;
1302 }
1303}
1304
1305static void atom_get_vbios_name(struct atom_context *ctx)
1306{
1307 unsigned char *p_rom;
1308 unsigned char str_num;
1309 unsigned short off_to_vbios_str;
1310 unsigned char *c_ptr;
1311 int name_size;
1312 int i;
1313
1314 const char *na = "--N/A--";
1315 char *back;
1316
1317 p_rom = ctx->bios;
1318
1319 str_num = *(p_rom + OFFSET_TO_GET_ATOMBIOS_NUMBER_OF_STRINGS);
1320 if (str_num != 0) {
1321 off_to_vbios_str =
1322 *(unsigned short *)(p_rom + OFFSET_TO_GET_ATOMBIOS_STRING_START);
1323
1324 c_ptr = (unsigned char *)(p_rom + off_to_vbios_str);
1325 } else {
1326 /* do not know where to find name */
1327 memcpy(ctx->name, na, 7);
1328 ctx->name[7] = 0;
1329 return;
1330 }
1331
1332 /*
1333 * skip the atombios strings, usually 4
1334 * 1st is P/N, 2nd is ASIC, 3rd is PCI type, 4th is Memory type
1335 */
1336 for (i = 0; i < str_num; i++) {
1337 while (*c_ptr != 0)
1338 c_ptr++;
1339 c_ptr++;
1340 }
1341
1342 /* skip the following 2 chars: 0x0D 0x0A */
1343 c_ptr += 2;
1344
1345 name_size = strnlen(c_ptr, STRLEN_LONG - 1);
1346 memcpy(ctx->name, c_ptr, name_size);
1347 back = ctx->name + name_size;
1348 while ((*--back) == ' ')
1349 ;
1350 *(back + 1) = '\0';
1351}
1352
1353static void atom_get_vbios_date(struct atom_context *ctx)
1354{
1355 unsigned char *p_rom;
1356 unsigned char *date_in_rom;
1357
1358 p_rom = ctx->bios;
1359
1360 date_in_rom = p_rom + OFFSET_TO_VBIOS_DATE;
1361
1362 ctx->date[0] = '2';
1363 ctx->date[1] = '0';
1364 ctx->date[2] = date_in_rom[6];
1365 ctx->date[3] = date_in_rom[7];
1366 ctx->date[4] = '/';
1367 ctx->date[5] = date_in_rom[0];
1368 ctx->date[6] = date_in_rom[1];
1369 ctx->date[7] = '/';
1370 ctx->date[8] = date_in_rom[3];
1371 ctx->date[9] = date_in_rom[4];
1372 ctx->date[10] = ' ';
1373 ctx->date[11] = date_in_rom[9];
1374 ctx->date[12] = date_in_rom[10];
1375 ctx->date[13] = date_in_rom[11];
1376 ctx->date[14] = date_in_rom[12];
1377 ctx->date[15] = date_in_rom[13];
1378 ctx->date[16] = '\0';
1379}
1380
1381static unsigned char *atom_find_str_in_rom(struct atom_context *ctx, char *str, int start,
1382 int end, int maxlen)
1383{
1384 unsigned long str_off;
1385 unsigned char *p_rom;
1386 unsigned short str_len;
1387
1388 str_off = 0;
1389 str_len = strnlen(str, maxlen);
1390 p_rom = ctx->bios;
1391
1392 for (; start <= end; ++start) {
1393 for (str_off = 0; str_off < str_len; ++str_off) {
1394 if (str[str_off] != *(p_rom + start + str_off))
1395 break;
1396 }
1397
1398 if (str_off == str_len || str[str_off] == 0)
1399 return p_rom + start;
1400 }
1401 return NULL;
1402}
1403
1404static void atom_get_vbios_pn(struct atom_context *ctx)
1405{
1406 unsigned char *p_rom;
1407 unsigned short off_to_vbios_str;
1408 unsigned char *vbios_str;
1409 int count;
1410
1411 off_to_vbios_str = 0;
1412 p_rom = ctx->bios;
1413
1414 if (*(p_rom + OFFSET_TO_GET_ATOMBIOS_NUMBER_OF_STRINGS) != 0) {
1415 off_to_vbios_str =
1416 *(unsigned short *)(p_rom + OFFSET_TO_GET_ATOMBIOS_STRING_START);
1417
1418 vbios_str = (unsigned char *)(p_rom + off_to_vbios_str);
1419 } else {
1420 vbios_str = p_rom + OFFSET_TO_VBIOS_PART_NUMBER;
1421 }
1422
1423 if (*vbios_str == 0) {
1424 vbios_str = atom_find_str_in_rom(ctx, BIOS_ATOM_PREFIX, 3, 1024, 64);
1425 if (vbios_str == NULL)
1426 vbios_str += sizeof(BIOS_ATOM_PREFIX) - 1;
1427 }
1428 if (vbios_str != NULL && *vbios_str == 0)
1429 vbios_str++;
1430
1431 if (vbios_str != NULL) {
1432 count = 0;
1433 while ((count < BIOS_STRING_LENGTH) && vbios_str[count] >= ' ' &&
1434 vbios_str[count] <= 'z') {
1435 ctx->vbios_pn[count] = vbios_str[count];
1436 count++;
1437 }
1438
1439 ctx->vbios_pn[count] = 0;
1440 }
1441}
1442
1443static void atom_get_vbios_version(struct atom_context *ctx)
1444{
1445 unsigned char *vbios_ver;
1446
1447 /* find anchor ATOMBIOSBK-AMD */
1448 vbios_ver = atom_find_str_in_rom(ctx, BIOS_VERSION_PREFIX, 3, 1024, 64);
1449 if (vbios_ver != NULL) {
1450 /* skip ATOMBIOSBK-AMD VER */
1451 vbios_ver += 18;
1452 memcpy(ctx->vbios_ver_str, vbios_ver, STRLEN_NORMAL);
1453 } else {
1454 ctx->vbios_ver_str[0] = '\0';
1455 }
1456}
1457
1458struct atom_context *amdgpu_atom_parse(struct card_info *card, void *bios)
1459{
1460 int base;
1461 struct atom_context *ctx =
1462 kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1463 char *str;
1464 struct _ATOM_ROM_HEADER *atom_rom_header;
1465 struct _ATOM_MASTER_DATA_TABLE *master_table;
1466 struct _ATOM_FIRMWARE_INFO *atom_fw_info;
1467 u16 idx;
1468
1469 if (!ctx)
1470 return NULL;
1471
1472 ctx->card = card;
1473 ctx->bios = bios;
1474
1475 if (CU16(0) != ATOM_BIOS_MAGIC) {
1476 pr_info("Invalid BIOS magic\n");
1477 kfree(ctx);
1478 return NULL;
1479 }
1480 if (strncmp
1481 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1482 strlen(ATOM_ATI_MAGIC))) {
1483 pr_info("Invalid ATI magic\n");
1484 kfree(ctx);
1485 return NULL;
1486 }
1487
1488 base = CU16(ATOM_ROM_TABLE_PTR);
1489 if (strncmp
1490 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1491 strlen(ATOM_ROM_MAGIC))) {
1492 pr_info("Invalid ATOM magic\n");
1493 kfree(ctx);
1494 return NULL;
1495 }
1496
1497 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1498 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1499 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1500 if (!ctx->iio) {
1501 amdgpu_atom_destroy(ctx);
1502 return NULL;
1503 }
1504
1505 idx = CU16(ATOM_ROM_PART_NUMBER_PTR);
1506 if (idx == 0)
1507 idx = 0x80;
1508
1509 str = CSTR(idx);
1510 if (*str != '\0') {
1511 pr_info("ATOM BIOS: %s\n", str);
1512 strlcpy(ctx->vbios_version, str, sizeof(ctx->vbios_version));
1513 }
1514
1515 atom_rom_header = (struct _ATOM_ROM_HEADER *)CSTR(base);
1516 if (atom_rom_header->usMasterDataTableOffset != 0) {
1517 master_table = (struct _ATOM_MASTER_DATA_TABLE *)
1518 CSTR(atom_rom_header->usMasterDataTableOffset);
1519 if (master_table->ListOfDataTables.FirmwareInfo != 0) {
1520 atom_fw_info = (struct _ATOM_FIRMWARE_INFO *)
1521 CSTR(master_table->ListOfDataTables.FirmwareInfo);
1522 ctx->version = atom_fw_info->ulFirmwareRevision;
1523 }
1524 }
1525
1526 atom_get_vbios_name(ctx);
1527 atom_get_vbios_pn(ctx);
1528 atom_get_vbios_date(ctx);
1529 atom_get_vbios_version(ctx);
1530
1531 return ctx;
1532}
1533
1534int amdgpu_atom_asic_init(struct atom_context *ctx)
1535{
1536 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1537 uint32_t ps[16];
1538 int ret;
1539
1540 memset(ps, 0, 64);
1541
1542 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1543 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1544 if (!ps[0] || !ps[1])
1545 return 1;
1546
1547 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1548 return 1;
1549 ret = amdgpu_atom_execute_table(ctx, ATOM_CMD_INIT, ps);
1550 if (ret)
1551 return ret;
1552
1553 memset(ps, 0, 64);
1554
1555 return ret;
1556}
1557
1558void amdgpu_atom_destroy(struct atom_context *ctx)
1559{
1560 kfree(ctx->iio);
1561 kfree(ctx);
1562}
1563
1564bool amdgpu_atom_parse_data_header(struct atom_context *ctx, int index,
1565 uint16_t *size, uint8_t *frev, uint8_t *crev,
1566 uint16_t *data_start)
1567{
1568 int offset = index * 2 + 4;
1569 int idx = CU16(ctx->data_table + offset);
1570 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1571
1572 if (!mdt[index])
1573 return false;
1574
1575 if (size)
1576 *size = CU16(idx);
1577 if (frev)
1578 *frev = CU8(idx + 2);
1579 if (crev)
1580 *crev = CU8(idx + 3);
1581 *data_start = idx;
1582 return true;
1583}
1584
1585bool amdgpu_atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t *frev,
1586 uint8_t *crev)
1587{
1588 int offset = index * 2 + 4;
1589 int idx = CU16(ctx->cmd_table + offset);
1590 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1591
1592 if (!mct[index])
1593 return false;
1594
1595 if (frev)
1596 *frev = CU8(idx + 2);
1597 if (crev)
1598 *crev = CU8(idx + 3);
1599 return true;
1600}
1601