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