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Merge branch 'drm-next-4.19' of git://people.freedesktop.org/~agd5f/linux into drm...
[thirdparty/kernel/stable.git] / drivers / gpu / drm / amd / amdgpu / atom.c
1 /*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Author: Stanislaw Skowronek
23 */
24
25 #include <linux/module.h>
26 #include <linux/sched.h>
27 #include <linux/slab.h>
28 #include <asm/unaligned.h>
29
30 #define ATOM_DEBUG
31
32 #include "atom.h"
33 #include "atom-names.h"
34 #include "atom-bits.h"
35 #include "amdgpu.h"
36
37 #define ATOM_COND_ABOVE 0
38 #define ATOM_COND_ABOVEOREQUAL 1
39 #define ATOM_COND_ALWAYS 2
40 #define ATOM_COND_BELOW 3
41 #define ATOM_COND_BELOWOREQUAL 4
42 #define ATOM_COND_EQUAL 5
43 #define ATOM_COND_NOTEQUAL 6
44
45 #define ATOM_PORT_ATI 0
46 #define ATOM_PORT_PCI 1
47 #define ATOM_PORT_SYSIO 2
48
49 #define ATOM_UNIT_MICROSEC 0
50 #define ATOM_UNIT_MILLISEC 1
51
52 #define PLL_INDEX 2
53 #define PLL_DATA 3
54
55 typedef struct {
56 struct atom_context *ctx;
57 uint32_t *ps, *ws;
58 int ps_shift;
59 uint16_t start;
60 unsigned last_jump;
61 unsigned long last_jump_jiffies;
62 bool abort;
63 } atom_exec_context;
64
65 int amdgpu_atom_debug = 0;
66 static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params);
67 int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t * params);
68
69 static uint32_t atom_arg_mask[8] =
70 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
71 0xFF000000 };
72 static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
73
74 static int atom_dst_to_src[8][4] = {
75 /* translate destination alignment field to the source alignment encoding */
76 {0, 0, 0, 0},
77 {1, 2, 3, 0},
78 {1, 2, 3, 0},
79 {1, 2, 3, 0},
80 {4, 5, 6, 7},
81 {4, 5, 6, 7},
82 {4, 5, 6, 7},
83 {4, 5, 6, 7},
84 };
85 static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
86
87 static int debug_depth = 0;
88 #ifdef ATOM_DEBUG
89 static void debug_print_spaces(int n)
90 {
91 while (n--)
92 printk(" ");
93 }
94
95 #define DEBUG(...) do if (amdgpu_atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
96 #define SDEBUG(...) do if (amdgpu_atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
97 #else
98 #define DEBUG(...) do { } while (0)
99 #define SDEBUG(...) do { } while (0)
100 #endif
101
102 static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
103 uint32_t index, uint32_t data)
104 {
105 uint32_t temp = 0xCDCDCDCD;
106
107 while (1)
108 switch (CU8(base)) {
109 case ATOM_IIO_NOP:
110 base++;
111 break;
112 case ATOM_IIO_READ:
113 temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1));
114 base += 3;
115 break;
116 case ATOM_IIO_WRITE:
117 ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp);
118 base += 3;
119 break;
120 case ATOM_IIO_CLEAR:
121 temp &=
122 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
123 CU8(base + 2));
124 base += 3;
125 break;
126 case ATOM_IIO_SET:
127 temp |=
128 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base +
129 2);
130 base += 3;
131 break;
132 case ATOM_IIO_MOVE_INDEX:
133 temp &=
134 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
135 CU8(base + 3));
136 temp |=
137 ((index >> CU8(base + 2)) &
138 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
139 3);
140 base += 4;
141 break;
142 case ATOM_IIO_MOVE_DATA:
143 temp &=
144 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
145 CU8(base + 3));
146 temp |=
147 ((data >> CU8(base + 2)) &
148 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
149 3);
150 base += 4;
151 break;
152 case ATOM_IIO_MOVE_ATTR:
153 temp &=
154 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
155 CU8(base + 3));
156 temp |=
157 ((ctx->
158 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 -
159 CU8
160 (base
161 +
162 1))))
163 << CU8(base + 3);
164 base += 4;
165 break;
166 case ATOM_IIO_END:
167 return temp;
168 default:
169 pr_info("Unknown IIO opcode\n");
170 return 0;
171 }
172 }
173
174 static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
175 int *ptr, uint32_t *saved, int print)
176 {
177 uint32_t idx, val = 0xCDCDCDCD, align, arg;
178 struct atom_context *gctx = ctx->ctx;
179 arg = attr & 7;
180 align = (attr >> 3) & 7;
181 switch (arg) {
182 case ATOM_ARG_REG:
183 idx = U16(*ptr);
184 (*ptr) += 2;
185 if (print)
186 DEBUG("REG[0x%04X]", idx);
187 idx += gctx->reg_block;
188 switch (gctx->io_mode) {
189 case ATOM_IO_MM:
190 val = gctx->card->reg_read(gctx->card, idx);
191 break;
192 case ATOM_IO_PCI:
193 pr_info("PCI registers are not implemented\n");
194 return 0;
195 case ATOM_IO_SYSIO:
196 pr_info("SYSIO registers are not implemented\n");
197 return 0;
198 default:
199 if (!(gctx->io_mode & 0x80)) {
200 pr_info("Bad IO mode\n");
201 return 0;
202 }
203 if (!gctx->iio[gctx->io_mode & 0x7F]) {
204 pr_info("Undefined indirect IO read method %d\n",
205 gctx->io_mode & 0x7F);
206 return 0;
207 }
208 val =
209 atom_iio_execute(gctx,
210 gctx->iio[gctx->io_mode & 0x7F],
211 idx, 0);
212 }
213 break;
214 case ATOM_ARG_PS:
215 idx = U8(*ptr);
216 (*ptr)++;
217 /* get_unaligned_le32 avoids unaligned accesses from atombios
218 * tables, noticed on a DEC Alpha. */
219 val = get_unaligned_le32((u32 *)&ctx->ps[idx]);
220 if (print)
221 DEBUG("PS[0x%02X,0x%04X]", idx, val);
222 break;
223 case ATOM_ARG_WS:
224 idx = U8(*ptr);
225 (*ptr)++;
226 if (print)
227 DEBUG("WS[0x%02X]", idx);
228 switch (idx) {
229 case ATOM_WS_QUOTIENT:
230 val = gctx->divmul[0];
231 break;
232 case ATOM_WS_REMAINDER:
233 val = gctx->divmul[1];
234 break;
235 case ATOM_WS_DATAPTR:
236 val = gctx->data_block;
237 break;
238 case ATOM_WS_SHIFT:
239 val = gctx->shift;
240 break;
241 case ATOM_WS_OR_MASK:
242 val = 1 << gctx->shift;
243 break;
244 case ATOM_WS_AND_MASK:
245 val = ~(1 << gctx->shift);
246 break;
247 case ATOM_WS_FB_WINDOW:
248 val = gctx->fb_base;
249 break;
250 case ATOM_WS_ATTRIBUTES:
251 val = gctx->io_attr;
252 break;
253 case ATOM_WS_REGPTR:
254 val = gctx->reg_block;
255 break;
256 default:
257 val = ctx->ws[idx];
258 }
259 break;
260 case ATOM_ARG_ID:
261 idx = U16(*ptr);
262 (*ptr) += 2;
263 if (print) {
264 if (gctx->data_block)
265 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
266 else
267 DEBUG("ID[0x%04X]", idx);
268 }
269 val = U32(idx + gctx->data_block);
270 break;
271 case ATOM_ARG_FB:
272 idx = U8(*ptr);
273 (*ptr)++;
274 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
275 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n",
276 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
277 val = 0;
278 } else
279 val = gctx->scratch[(gctx->fb_base / 4) + idx];
280 if (print)
281 DEBUG("FB[0x%02X]", idx);
282 break;
283 case ATOM_ARG_IMM:
284 switch (align) {
285 case ATOM_SRC_DWORD:
286 val = U32(*ptr);
287 (*ptr) += 4;
288 if (print)
289 DEBUG("IMM 0x%08X\n", val);
290 return val;
291 case ATOM_SRC_WORD0:
292 case ATOM_SRC_WORD8:
293 case ATOM_SRC_WORD16:
294 val = U16(*ptr);
295 (*ptr) += 2;
296 if (print)
297 DEBUG("IMM 0x%04X\n", val);
298 return val;
299 case ATOM_SRC_BYTE0:
300 case ATOM_SRC_BYTE8:
301 case ATOM_SRC_BYTE16:
302 case ATOM_SRC_BYTE24:
303 val = U8(*ptr);
304 (*ptr)++;
305 if (print)
306 DEBUG("IMM 0x%02X\n", val);
307 return val;
308 }
309 return 0;
310 case ATOM_ARG_PLL:
311 idx = U8(*ptr);
312 (*ptr)++;
313 if (print)
314 DEBUG("PLL[0x%02X]", idx);
315 val = gctx->card->pll_read(gctx->card, idx);
316 break;
317 case ATOM_ARG_MC:
318 idx = U8(*ptr);
319 (*ptr)++;
320 if (print)
321 DEBUG("MC[0x%02X]", idx);
322 val = gctx->card->mc_read(gctx->card, idx);
323 break;
324 }
325 if (saved)
326 *saved = val;
327 val &= atom_arg_mask[align];
328 val >>= atom_arg_shift[align];
329 if (print)
330 switch (align) {
331 case ATOM_SRC_DWORD:
332 DEBUG(".[31:0] -> 0x%08X\n", val);
333 break;
334 case ATOM_SRC_WORD0:
335 DEBUG(".[15:0] -> 0x%04X\n", val);
336 break;
337 case ATOM_SRC_WORD8:
338 DEBUG(".[23:8] -> 0x%04X\n", val);
339 break;
340 case ATOM_SRC_WORD16:
341 DEBUG(".[31:16] -> 0x%04X\n", val);
342 break;
343 case ATOM_SRC_BYTE0:
344 DEBUG(".[7:0] -> 0x%02X\n", val);
345 break;
346 case ATOM_SRC_BYTE8:
347 DEBUG(".[15:8] -> 0x%02X\n", val);
348 break;
349 case ATOM_SRC_BYTE16:
350 DEBUG(".[23:16] -> 0x%02X\n", val);
351 break;
352 case ATOM_SRC_BYTE24:
353 DEBUG(".[31:24] -> 0x%02X\n", val);
354 break;
355 }
356 return val;
357 }
358
359 static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
360 {
361 uint32_t align = (attr >> 3) & 7, arg = attr & 7;
362 switch (arg) {
363 case ATOM_ARG_REG:
364 case ATOM_ARG_ID:
365 (*ptr) += 2;
366 break;
367 case ATOM_ARG_PLL:
368 case ATOM_ARG_MC:
369 case ATOM_ARG_PS:
370 case ATOM_ARG_WS:
371 case ATOM_ARG_FB:
372 (*ptr)++;
373 break;
374 case ATOM_ARG_IMM:
375 switch (align) {
376 case ATOM_SRC_DWORD:
377 (*ptr) += 4;
378 return;
379 case ATOM_SRC_WORD0:
380 case ATOM_SRC_WORD8:
381 case ATOM_SRC_WORD16:
382 (*ptr) += 2;
383 return;
384 case ATOM_SRC_BYTE0:
385 case ATOM_SRC_BYTE8:
386 case ATOM_SRC_BYTE16:
387 case ATOM_SRC_BYTE24:
388 (*ptr)++;
389 return;
390 }
391 return;
392 }
393 }
394
395 static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
396 {
397 return atom_get_src_int(ctx, attr, ptr, NULL, 1);
398 }
399
400 static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
401 {
402 uint32_t val = 0xCDCDCDCD;
403
404 switch (align) {
405 case ATOM_SRC_DWORD:
406 val = U32(*ptr);
407 (*ptr) += 4;
408 break;
409 case ATOM_SRC_WORD0:
410 case ATOM_SRC_WORD8:
411 case ATOM_SRC_WORD16:
412 val = U16(*ptr);
413 (*ptr) += 2;
414 break;
415 case ATOM_SRC_BYTE0:
416 case ATOM_SRC_BYTE8:
417 case ATOM_SRC_BYTE16:
418 case ATOM_SRC_BYTE24:
419 val = U8(*ptr);
420 (*ptr)++;
421 break;
422 }
423 return val;
424 }
425
426 static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
427 int *ptr, uint32_t *saved, int print)
428 {
429 return atom_get_src_int(ctx,
430 arg | atom_dst_to_src[(attr >> 3) &
431 7][(attr >> 6) & 3] << 3,
432 ptr, saved, print);
433 }
434
435 static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
436 {
437 atom_skip_src_int(ctx,
438 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
439 3] << 3, ptr);
440 }
441
442 static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
443 int *ptr, uint32_t val, uint32_t saved)
444 {
445 uint32_t align =
446 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
447 val, idx;
448 struct atom_context *gctx = ctx->ctx;
449 old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
450 val <<= atom_arg_shift[align];
451 val &= atom_arg_mask[align];
452 saved &= ~atom_arg_mask[align];
453 val |= saved;
454 switch (arg) {
455 case ATOM_ARG_REG:
456 idx = U16(*ptr);
457 (*ptr) += 2;
458 DEBUG("REG[0x%04X]", idx);
459 idx += gctx->reg_block;
460 switch (gctx->io_mode) {
461 case ATOM_IO_MM:
462 if (idx == 0)
463 gctx->card->reg_write(gctx->card, idx,
464 val << 2);
465 else
466 gctx->card->reg_write(gctx->card, idx, val);
467 break;
468 case ATOM_IO_PCI:
469 pr_info("PCI registers are not implemented\n");
470 return;
471 case ATOM_IO_SYSIO:
472 pr_info("SYSIO registers are not implemented\n");
473 return;
474 default:
475 if (!(gctx->io_mode & 0x80)) {
476 pr_info("Bad IO mode\n");
477 return;
478 }
479 if (!gctx->iio[gctx->io_mode & 0xFF]) {
480 pr_info("Undefined indirect IO write method %d\n",
481 gctx->io_mode & 0x7F);
482 return;
483 }
484 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
485 idx, val);
486 }
487 break;
488 case ATOM_ARG_PS:
489 idx = U8(*ptr);
490 (*ptr)++;
491 DEBUG("PS[0x%02X]", idx);
492 ctx->ps[idx] = cpu_to_le32(val);
493 break;
494 case ATOM_ARG_WS:
495 idx = U8(*ptr);
496 (*ptr)++;
497 DEBUG("WS[0x%02X]", idx);
498 switch (idx) {
499 case ATOM_WS_QUOTIENT:
500 gctx->divmul[0] = val;
501 break;
502 case ATOM_WS_REMAINDER:
503 gctx->divmul[1] = val;
504 break;
505 case ATOM_WS_DATAPTR:
506 gctx->data_block = val;
507 break;
508 case ATOM_WS_SHIFT:
509 gctx->shift = val;
510 break;
511 case ATOM_WS_OR_MASK:
512 case ATOM_WS_AND_MASK:
513 break;
514 case ATOM_WS_FB_WINDOW:
515 gctx->fb_base = val;
516 break;
517 case ATOM_WS_ATTRIBUTES:
518 gctx->io_attr = val;
519 break;
520 case ATOM_WS_REGPTR:
521 gctx->reg_block = val;
522 break;
523 default:
524 ctx->ws[idx] = val;
525 }
526 break;
527 case ATOM_ARG_FB:
528 idx = U8(*ptr);
529 (*ptr)++;
530 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
531 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n",
532 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
533 } else
534 gctx->scratch[(gctx->fb_base / 4) + idx] = val;
535 DEBUG("FB[0x%02X]", idx);
536 break;
537 case ATOM_ARG_PLL:
538 idx = U8(*ptr);
539 (*ptr)++;
540 DEBUG("PLL[0x%02X]", idx);
541 gctx->card->pll_write(gctx->card, idx, val);
542 break;
543 case ATOM_ARG_MC:
544 idx = U8(*ptr);
545 (*ptr)++;
546 DEBUG("MC[0x%02X]", idx);
547 gctx->card->mc_write(gctx->card, idx, val);
548 return;
549 }
550 switch (align) {
551 case ATOM_SRC_DWORD:
552 DEBUG(".[31:0] <- 0x%08X\n", old_val);
553 break;
554 case ATOM_SRC_WORD0:
555 DEBUG(".[15:0] <- 0x%04X\n", old_val);
556 break;
557 case ATOM_SRC_WORD8:
558 DEBUG(".[23:8] <- 0x%04X\n", old_val);
559 break;
560 case ATOM_SRC_WORD16:
561 DEBUG(".[31:16] <- 0x%04X\n", old_val);
562 break;
563 case ATOM_SRC_BYTE0:
564 DEBUG(".[7:0] <- 0x%02X\n", old_val);
565 break;
566 case ATOM_SRC_BYTE8:
567 DEBUG(".[15:8] <- 0x%02X\n", old_val);
568 break;
569 case ATOM_SRC_BYTE16:
570 DEBUG(".[23:16] <- 0x%02X\n", old_val);
571 break;
572 case ATOM_SRC_BYTE24:
573 DEBUG(".[31:24] <- 0x%02X\n", old_val);
574 break;
575 }
576 }
577
578 static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
579 {
580 uint8_t attr = U8((*ptr)++);
581 uint32_t dst, src, saved;
582 int dptr = *ptr;
583 SDEBUG(" dst: ");
584 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
585 SDEBUG(" src: ");
586 src = atom_get_src(ctx, attr, ptr);
587 dst += src;
588 SDEBUG(" dst: ");
589 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
590 }
591
592 static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
593 {
594 uint8_t attr = U8((*ptr)++);
595 uint32_t dst, src, saved;
596 int dptr = *ptr;
597 SDEBUG(" dst: ");
598 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
599 SDEBUG(" src: ");
600 src = atom_get_src(ctx, attr, ptr);
601 dst &= src;
602 SDEBUG(" dst: ");
603 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
604 }
605
606 static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
607 {
608 printk("ATOM BIOS beeped!\n");
609 }
610
611 static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
612 {
613 int idx = U8((*ptr)++);
614 int r = 0;
615
616 if (idx < ATOM_TABLE_NAMES_CNT)
617 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]);
618 else
619 SDEBUG(" table: %d\n", idx);
620 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
621 r = amdgpu_atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift);
622 if (r) {
623 ctx->abort = true;
624 }
625 }
626
627 static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
628 {
629 uint8_t attr = U8((*ptr)++);
630 uint32_t saved;
631 int dptr = *ptr;
632 attr &= 0x38;
633 attr |= atom_def_dst[attr >> 3] << 6;
634 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
635 SDEBUG(" dst: ");
636 atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
637 }
638
639 static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
640 {
641 uint8_t attr = U8((*ptr)++);
642 uint32_t dst, src;
643 SDEBUG(" src1: ");
644 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
645 SDEBUG(" src2: ");
646 src = atom_get_src(ctx, attr, ptr);
647 ctx->ctx->cs_equal = (dst == src);
648 ctx->ctx->cs_above = (dst > src);
649 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
650 ctx->ctx->cs_above ? "GT" : "LE");
651 }
652
653 static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
654 {
655 unsigned count = U8((*ptr)++);
656 SDEBUG(" count: %d\n", count);
657 if (arg == ATOM_UNIT_MICROSEC)
658 udelay(count);
659 else if (!drm_can_sleep())
660 mdelay(count);
661 else
662 msleep(count);
663 }
664
665 static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
666 {
667 uint8_t attr = U8((*ptr)++);
668 uint32_t dst, src;
669 SDEBUG(" src1: ");
670 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
671 SDEBUG(" src2: ");
672 src = atom_get_src(ctx, attr, ptr);
673 if (src != 0) {
674 ctx->ctx->divmul[0] = dst / src;
675 ctx->ctx->divmul[1] = dst % src;
676 } else {
677 ctx->ctx->divmul[0] = 0;
678 ctx->ctx->divmul[1] = 0;
679 }
680 }
681
682 static void atom_op_div32(atom_exec_context *ctx, int *ptr, int arg)
683 {
684 uint64_t val64;
685 uint8_t attr = U8((*ptr)++);
686 uint32_t dst, src;
687 SDEBUG(" src1: ");
688 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
689 SDEBUG(" src2: ");
690 src = atom_get_src(ctx, attr, ptr);
691 if (src != 0) {
692 val64 = dst;
693 val64 |= ((uint64_t)ctx->ctx->divmul[1]) << 32;
694 do_div(val64, src);
695 ctx->ctx->divmul[0] = lower_32_bits(val64);
696 ctx->ctx->divmul[1] = upper_32_bits(val64);
697 } else {
698 ctx->ctx->divmul[0] = 0;
699 ctx->ctx->divmul[1] = 0;
700 }
701 }
702
703 static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
704 {
705 /* functionally, a nop */
706 }
707
708 static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
709 {
710 int execute = 0, target = U16(*ptr);
711 unsigned long cjiffies;
712
713 (*ptr) += 2;
714 switch (arg) {
715 case ATOM_COND_ABOVE:
716 execute = ctx->ctx->cs_above;
717 break;
718 case ATOM_COND_ABOVEOREQUAL:
719 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
720 break;
721 case ATOM_COND_ALWAYS:
722 execute = 1;
723 break;
724 case ATOM_COND_BELOW:
725 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
726 break;
727 case ATOM_COND_BELOWOREQUAL:
728 execute = !ctx->ctx->cs_above;
729 break;
730 case ATOM_COND_EQUAL:
731 execute = ctx->ctx->cs_equal;
732 break;
733 case ATOM_COND_NOTEQUAL:
734 execute = !ctx->ctx->cs_equal;
735 break;
736 }
737 if (arg != ATOM_COND_ALWAYS)
738 SDEBUG(" taken: %s\n", execute ? "yes" : "no");
739 SDEBUG(" target: 0x%04X\n", target);
740 if (execute) {
741 if (ctx->last_jump == (ctx->start + target)) {
742 cjiffies = jiffies;
743 if (time_after(cjiffies, ctx->last_jump_jiffies)) {
744 cjiffies -= ctx->last_jump_jiffies;
745 if ((jiffies_to_msecs(cjiffies) > 5000)) {
746 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n");
747 ctx->abort = true;
748 }
749 } else {
750 /* jiffies wrap around we will just wait a little longer */
751 ctx->last_jump_jiffies = jiffies;
752 }
753 } else {
754 ctx->last_jump = ctx->start + target;
755 ctx->last_jump_jiffies = jiffies;
756 }
757 *ptr = ctx->start + target;
758 }
759 }
760
761 static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
762 {
763 uint8_t attr = U8((*ptr)++);
764 uint32_t dst, mask, src, saved;
765 int dptr = *ptr;
766 SDEBUG(" dst: ");
767 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
768 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
769 SDEBUG(" mask: 0x%08x", mask);
770 SDEBUG(" src: ");
771 src = atom_get_src(ctx, attr, ptr);
772 dst &= mask;
773 dst |= src;
774 SDEBUG(" dst: ");
775 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
776 }
777
778 static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
779 {
780 uint8_t attr = U8((*ptr)++);
781 uint32_t src, saved;
782 int dptr = *ptr;
783 if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
784 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
785 else {
786 atom_skip_dst(ctx, arg, attr, ptr);
787 saved = 0xCDCDCDCD;
788 }
789 SDEBUG(" src: ");
790 src = atom_get_src(ctx, attr, ptr);
791 SDEBUG(" dst: ");
792 atom_put_dst(ctx, arg, attr, &dptr, src, saved);
793 }
794
795 static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
796 {
797 uint8_t attr = U8((*ptr)++);
798 uint32_t dst, src;
799 SDEBUG(" src1: ");
800 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
801 SDEBUG(" src2: ");
802 src = atom_get_src(ctx, attr, ptr);
803 ctx->ctx->divmul[0] = dst * src;
804 }
805
806 static void atom_op_mul32(atom_exec_context *ctx, int *ptr, int arg)
807 {
808 uint64_t val64;
809 uint8_t attr = U8((*ptr)++);
810 uint32_t dst, src;
811 SDEBUG(" src1: ");
812 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
813 SDEBUG(" src2: ");
814 src = atom_get_src(ctx, attr, ptr);
815 val64 = (uint64_t)dst * (uint64_t)src;
816 ctx->ctx->divmul[0] = lower_32_bits(val64);
817 ctx->ctx->divmul[1] = upper_32_bits(val64);
818 }
819
820 static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
821 {
822 /* nothing */
823 }
824
825 static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
826 {
827 uint8_t attr = U8((*ptr)++);
828 uint32_t dst, src, saved;
829 int dptr = *ptr;
830 SDEBUG(" dst: ");
831 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
832 SDEBUG(" src: ");
833 src = atom_get_src(ctx, attr, ptr);
834 dst |= src;
835 SDEBUG(" dst: ");
836 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
837 }
838
839 static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
840 {
841 uint8_t val = U8((*ptr)++);
842 SDEBUG("POST card output: 0x%02X\n", val);
843 }
844
845 static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
846 {
847 pr_info("unimplemented!\n");
848 }
849
850 static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
851 {
852 pr_info("unimplemented!\n");
853 }
854
855 static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
856 {
857 pr_info("unimplemented!\n");
858 }
859
860 static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
861 {
862 int idx = U8(*ptr);
863 (*ptr)++;
864 SDEBUG(" block: %d\n", idx);
865 if (!idx)
866 ctx->ctx->data_block = 0;
867 else if (idx == 255)
868 ctx->ctx->data_block = ctx->start;
869 else
870 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
871 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block);
872 }
873
874 static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
875 {
876 uint8_t attr = U8((*ptr)++);
877 SDEBUG(" fb_base: ");
878 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
879 }
880
881 static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
882 {
883 int port;
884 switch (arg) {
885 case ATOM_PORT_ATI:
886 port = U16(*ptr);
887 if (port < ATOM_IO_NAMES_CNT)
888 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]);
889 else
890 SDEBUG(" port: %d\n", port);
891 if (!port)
892 ctx->ctx->io_mode = ATOM_IO_MM;
893 else
894 ctx->ctx->io_mode = ATOM_IO_IIO | port;
895 (*ptr) += 2;
896 break;
897 case ATOM_PORT_PCI:
898 ctx->ctx->io_mode = ATOM_IO_PCI;
899 (*ptr)++;
900 break;
901 case ATOM_PORT_SYSIO:
902 ctx->ctx->io_mode = ATOM_IO_SYSIO;
903 (*ptr)++;
904 break;
905 }
906 }
907
908 static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
909 {
910 ctx->ctx->reg_block = U16(*ptr);
911 (*ptr) += 2;
912 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block);
913 }
914
915 static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
916 {
917 uint8_t attr = U8((*ptr)++), shift;
918 uint32_t saved, dst;
919 int dptr = *ptr;
920 attr &= 0x38;
921 attr |= atom_def_dst[attr >> 3] << 6;
922 SDEBUG(" dst: ");
923 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
924 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
925 SDEBUG(" shift: %d\n", shift);
926 dst <<= shift;
927 SDEBUG(" dst: ");
928 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
929 }
930
931 static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
932 {
933 uint8_t attr = U8((*ptr)++), shift;
934 uint32_t saved, dst;
935 int dptr = *ptr;
936 attr &= 0x38;
937 attr |= atom_def_dst[attr >> 3] << 6;
938 SDEBUG(" dst: ");
939 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
940 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
941 SDEBUG(" shift: %d\n", shift);
942 dst >>= shift;
943 SDEBUG(" dst: ");
944 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
945 }
946
947 static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
948 {
949 uint8_t attr = U8((*ptr)++), shift;
950 uint32_t saved, dst;
951 int dptr = *ptr;
952 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
953 SDEBUG(" dst: ");
954 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
955 /* op needs to full dst value */
956 dst = saved;
957 shift = atom_get_src(ctx, attr, ptr);
958 SDEBUG(" shift: %d\n", shift);
959 dst <<= shift;
960 dst &= atom_arg_mask[dst_align];
961 dst >>= atom_arg_shift[dst_align];
962 SDEBUG(" dst: ");
963 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
964 }
965
966 static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
967 {
968 uint8_t attr = U8((*ptr)++), shift;
969 uint32_t saved, dst;
970 int dptr = *ptr;
971 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
972 SDEBUG(" dst: ");
973 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
974 /* op needs to full dst value */
975 dst = saved;
976 shift = atom_get_src(ctx, attr, ptr);
977 SDEBUG(" shift: %d\n", shift);
978 dst >>= shift;
979 dst &= atom_arg_mask[dst_align];
980 dst >>= atom_arg_shift[dst_align];
981 SDEBUG(" dst: ");
982 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
983 }
984
985 static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
986 {
987 uint8_t attr = U8((*ptr)++);
988 uint32_t dst, src, saved;
989 int dptr = *ptr;
990 SDEBUG(" dst: ");
991 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
992 SDEBUG(" src: ");
993 src = atom_get_src(ctx, attr, ptr);
994 dst -= src;
995 SDEBUG(" dst: ");
996 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
997 }
998
999 static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
1000 {
1001 uint8_t attr = U8((*ptr)++);
1002 uint32_t src, val, target;
1003 SDEBUG(" switch: ");
1004 src = atom_get_src(ctx, attr, ptr);
1005 while (U16(*ptr) != ATOM_CASE_END)
1006 if (U8(*ptr) == ATOM_CASE_MAGIC) {
1007 (*ptr)++;
1008 SDEBUG(" case: ");
1009 val =
1010 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
1011 ptr);
1012 target = U16(*ptr);
1013 if (val == src) {
1014 SDEBUG(" target: %04X\n", target);
1015 *ptr = ctx->start + target;
1016 return;
1017 }
1018 (*ptr) += 2;
1019 } else {
1020 pr_info("Bad case\n");
1021 return;
1022 }
1023 (*ptr) += 2;
1024 }
1025
1026 static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
1027 {
1028 uint8_t attr = U8((*ptr)++);
1029 uint32_t dst, src;
1030 SDEBUG(" src1: ");
1031 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
1032 SDEBUG(" src2: ");
1033 src = atom_get_src(ctx, attr, ptr);
1034 ctx->ctx->cs_equal = ((dst & src) == 0);
1035 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
1036 }
1037
1038 static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
1039 {
1040 uint8_t attr = U8((*ptr)++);
1041 uint32_t dst, src, saved;
1042 int dptr = *ptr;
1043 SDEBUG(" dst: ");
1044 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1045 SDEBUG(" src: ");
1046 src = atom_get_src(ctx, attr, ptr);
1047 dst ^= src;
1048 SDEBUG(" dst: ");
1049 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1050 }
1051
1052 static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1053 {
1054 uint8_t val = U8((*ptr)++);
1055 SDEBUG("DEBUG output: 0x%02X\n", val);
1056 }
1057
1058 static void atom_op_processds(atom_exec_context *ctx, int *ptr, int arg)
1059 {
1060 uint16_t val = U16(*ptr);
1061 (*ptr) += val + 2;
1062 SDEBUG("PROCESSDS output: 0x%02X\n", val);
1063 }
1064
1065 static struct {
1066 void (*func) (atom_exec_context *, int *, int);
1067 int arg;
1068 } opcode_table[ATOM_OP_CNT] = {
1069 {
1070 NULL, 0}, {
1071 atom_op_move, ATOM_ARG_REG}, {
1072 atom_op_move, ATOM_ARG_PS}, {
1073 atom_op_move, ATOM_ARG_WS}, {
1074 atom_op_move, ATOM_ARG_FB}, {
1075 atom_op_move, ATOM_ARG_PLL}, {
1076 atom_op_move, ATOM_ARG_MC}, {
1077 atom_op_and, ATOM_ARG_REG}, {
1078 atom_op_and, ATOM_ARG_PS}, {
1079 atom_op_and, ATOM_ARG_WS}, {
1080 atom_op_and, ATOM_ARG_FB}, {
1081 atom_op_and, ATOM_ARG_PLL}, {
1082 atom_op_and, ATOM_ARG_MC}, {
1083 atom_op_or, ATOM_ARG_REG}, {
1084 atom_op_or, ATOM_ARG_PS}, {
1085 atom_op_or, ATOM_ARG_WS}, {
1086 atom_op_or, ATOM_ARG_FB}, {
1087 atom_op_or, ATOM_ARG_PLL}, {
1088 atom_op_or, ATOM_ARG_MC}, {
1089 atom_op_shift_left, ATOM_ARG_REG}, {
1090 atom_op_shift_left, ATOM_ARG_PS}, {
1091 atom_op_shift_left, ATOM_ARG_WS}, {
1092 atom_op_shift_left, ATOM_ARG_FB}, {
1093 atom_op_shift_left, ATOM_ARG_PLL}, {
1094 atom_op_shift_left, ATOM_ARG_MC}, {
1095 atom_op_shift_right, ATOM_ARG_REG}, {
1096 atom_op_shift_right, ATOM_ARG_PS}, {
1097 atom_op_shift_right, ATOM_ARG_WS}, {
1098 atom_op_shift_right, ATOM_ARG_FB}, {
1099 atom_op_shift_right, ATOM_ARG_PLL}, {
1100 atom_op_shift_right, ATOM_ARG_MC}, {
1101 atom_op_mul, ATOM_ARG_REG}, {
1102 atom_op_mul, ATOM_ARG_PS}, {
1103 atom_op_mul, ATOM_ARG_WS}, {
1104 atom_op_mul, ATOM_ARG_FB}, {
1105 atom_op_mul, ATOM_ARG_PLL}, {
1106 atom_op_mul, ATOM_ARG_MC}, {
1107 atom_op_div, ATOM_ARG_REG}, {
1108 atom_op_div, ATOM_ARG_PS}, {
1109 atom_op_div, ATOM_ARG_WS}, {
1110 atom_op_div, ATOM_ARG_FB}, {
1111 atom_op_div, ATOM_ARG_PLL}, {
1112 atom_op_div, ATOM_ARG_MC}, {
1113 atom_op_add, ATOM_ARG_REG}, {
1114 atom_op_add, ATOM_ARG_PS}, {
1115 atom_op_add, ATOM_ARG_WS}, {
1116 atom_op_add, ATOM_ARG_FB}, {
1117 atom_op_add, ATOM_ARG_PLL}, {
1118 atom_op_add, ATOM_ARG_MC}, {
1119 atom_op_sub, ATOM_ARG_REG}, {
1120 atom_op_sub, ATOM_ARG_PS}, {
1121 atom_op_sub, ATOM_ARG_WS}, {
1122 atom_op_sub, ATOM_ARG_FB}, {
1123 atom_op_sub, ATOM_ARG_PLL}, {
1124 atom_op_sub, ATOM_ARG_MC}, {
1125 atom_op_setport, ATOM_PORT_ATI}, {
1126 atom_op_setport, ATOM_PORT_PCI}, {
1127 atom_op_setport, ATOM_PORT_SYSIO}, {
1128 atom_op_setregblock, 0}, {
1129 atom_op_setfbbase, 0}, {
1130 atom_op_compare, ATOM_ARG_REG}, {
1131 atom_op_compare, ATOM_ARG_PS}, {
1132 atom_op_compare, ATOM_ARG_WS}, {
1133 atom_op_compare, ATOM_ARG_FB}, {
1134 atom_op_compare, ATOM_ARG_PLL}, {
1135 atom_op_compare, ATOM_ARG_MC}, {
1136 atom_op_switch, 0}, {
1137 atom_op_jump, ATOM_COND_ALWAYS}, {
1138 atom_op_jump, ATOM_COND_EQUAL}, {
1139 atom_op_jump, ATOM_COND_BELOW}, {
1140 atom_op_jump, ATOM_COND_ABOVE}, {
1141 atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1142 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1143 atom_op_jump, ATOM_COND_NOTEQUAL}, {
1144 atom_op_test, ATOM_ARG_REG}, {
1145 atom_op_test, ATOM_ARG_PS}, {
1146 atom_op_test, ATOM_ARG_WS}, {
1147 atom_op_test, ATOM_ARG_FB}, {
1148 atom_op_test, ATOM_ARG_PLL}, {
1149 atom_op_test, ATOM_ARG_MC}, {
1150 atom_op_delay, ATOM_UNIT_MILLISEC}, {
1151 atom_op_delay, ATOM_UNIT_MICROSEC}, {
1152 atom_op_calltable, 0}, {
1153 atom_op_repeat, 0}, {
1154 atom_op_clear, ATOM_ARG_REG}, {
1155 atom_op_clear, ATOM_ARG_PS}, {
1156 atom_op_clear, ATOM_ARG_WS}, {
1157 atom_op_clear, ATOM_ARG_FB}, {
1158 atom_op_clear, ATOM_ARG_PLL}, {
1159 atom_op_clear, ATOM_ARG_MC}, {
1160 atom_op_nop, 0}, {
1161 atom_op_eot, 0}, {
1162 atom_op_mask, ATOM_ARG_REG}, {
1163 atom_op_mask, ATOM_ARG_PS}, {
1164 atom_op_mask, ATOM_ARG_WS}, {
1165 atom_op_mask, ATOM_ARG_FB}, {
1166 atom_op_mask, ATOM_ARG_PLL}, {
1167 atom_op_mask, ATOM_ARG_MC}, {
1168 atom_op_postcard, 0}, {
1169 atom_op_beep, 0}, {
1170 atom_op_savereg, 0}, {
1171 atom_op_restorereg, 0}, {
1172 atom_op_setdatablock, 0}, {
1173 atom_op_xor, ATOM_ARG_REG}, {
1174 atom_op_xor, ATOM_ARG_PS}, {
1175 atom_op_xor, ATOM_ARG_WS}, {
1176 atom_op_xor, ATOM_ARG_FB}, {
1177 atom_op_xor, ATOM_ARG_PLL}, {
1178 atom_op_xor, ATOM_ARG_MC}, {
1179 atom_op_shl, ATOM_ARG_REG}, {
1180 atom_op_shl, ATOM_ARG_PS}, {
1181 atom_op_shl, ATOM_ARG_WS}, {
1182 atom_op_shl, ATOM_ARG_FB}, {
1183 atom_op_shl, ATOM_ARG_PLL}, {
1184 atom_op_shl, ATOM_ARG_MC}, {
1185 atom_op_shr, ATOM_ARG_REG}, {
1186 atom_op_shr, ATOM_ARG_PS}, {
1187 atom_op_shr, ATOM_ARG_WS}, {
1188 atom_op_shr, ATOM_ARG_FB}, {
1189 atom_op_shr, ATOM_ARG_PLL}, {
1190 atom_op_shr, ATOM_ARG_MC}, {
1191 atom_op_debug, 0}, {
1192 atom_op_processds, 0}, {
1193 atom_op_mul32, ATOM_ARG_PS}, {
1194 atom_op_mul32, ATOM_ARG_WS}, {
1195 atom_op_div32, ATOM_ARG_PS}, {
1196 atom_op_div32, ATOM_ARG_WS},
1197 };
1198
1199 static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params)
1200 {
1201 int base = CU16(ctx->cmd_table + 4 + 2 * index);
1202 int len, ws, ps, ptr;
1203 unsigned char op;
1204 atom_exec_context ectx;
1205 int ret = 0;
1206
1207 if (!base)
1208 return -EINVAL;
1209
1210 len = CU16(base + ATOM_CT_SIZE_PTR);
1211 ws = CU8(base + ATOM_CT_WS_PTR);
1212 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1213 ptr = base + ATOM_CT_CODE_PTR;
1214
1215 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1216
1217 ectx.ctx = ctx;
1218 ectx.ps_shift = ps / 4;
1219 ectx.start = base;
1220 ectx.ps = params;
1221 ectx.abort = false;
1222 ectx.last_jump = 0;
1223 if (ws)
1224 ectx.ws = kcalloc(4, ws, GFP_ATOMIC);
1225 else
1226 ectx.ws = NULL;
1227
1228 debug_depth++;
1229 while (1) {
1230 op = CU8(ptr++);
1231 if (op < ATOM_OP_NAMES_CNT)
1232 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1233 else
1234 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
1235 if (ectx.abort) {
1236 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1237 base, len, ws, ps, ptr - 1);
1238 ret = -EINVAL;
1239 goto free;
1240 }
1241
1242 if (op < ATOM_OP_CNT && op > 0)
1243 opcode_table[op].func(&ectx, &ptr,
1244 opcode_table[op].arg);
1245 else
1246 break;
1247
1248 if (op == ATOM_OP_EOT)
1249 break;
1250 }
1251 debug_depth--;
1252 SDEBUG("<<\n");
1253
1254 free:
1255 if (ws)
1256 kfree(ectx.ws);
1257 return ret;
1258 }
1259
1260 int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
1261 {
1262 int r;
1263
1264 mutex_lock(&ctx->mutex);
1265 /* reset data block */
1266 ctx->data_block = 0;
1267 /* reset reg block */
1268 ctx->reg_block = 0;
1269 /* reset fb window */
1270 ctx->fb_base = 0;
1271 /* reset io mode */
1272 ctx->io_mode = ATOM_IO_MM;
1273 /* reset divmul */
1274 ctx->divmul[0] = 0;
1275 ctx->divmul[1] = 0;
1276 r = amdgpu_atom_execute_table_locked(ctx, index, params);
1277 mutex_unlock(&ctx->mutex);
1278 return r;
1279 }
1280
1281 static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1282
1283 static void atom_index_iio(struct atom_context *ctx, int base)
1284 {
1285 ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1286 if (!ctx->iio)
1287 return;
1288 while (CU8(base) == ATOM_IIO_START) {
1289 ctx->iio[CU8(base + 1)] = base + 2;
1290 base += 2;
1291 while (CU8(base) != ATOM_IIO_END)
1292 base += atom_iio_len[CU8(base)];
1293 base += 3;
1294 }
1295 }
1296
1297 struct atom_context *amdgpu_atom_parse(struct card_info *card, void *bios)
1298 {
1299 int base;
1300 struct atom_context *ctx =
1301 kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1302 char *str;
1303 u16 idx;
1304
1305 if (!ctx)
1306 return NULL;
1307
1308 ctx->card = card;
1309 ctx->bios = bios;
1310
1311 if (CU16(0) != ATOM_BIOS_MAGIC) {
1312 pr_info("Invalid BIOS magic\n");
1313 kfree(ctx);
1314 return NULL;
1315 }
1316 if (strncmp
1317 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1318 strlen(ATOM_ATI_MAGIC))) {
1319 pr_info("Invalid ATI magic\n");
1320 kfree(ctx);
1321 return NULL;
1322 }
1323
1324 base = CU16(ATOM_ROM_TABLE_PTR);
1325 if (strncmp
1326 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1327 strlen(ATOM_ROM_MAGIC))) {
1328 pr_info("Invalid ATOM magic\n");
1329 kfree(ctx);
1330 return NULL;
1331 }
1332
1333 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1334 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1335 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1336 if (!ctx->iio) {
1337 amdgpu_atom_destroy(ctx);
1338 return NULL;
1339 }
1340
1341 idx = CU16(ATOM_ROM_PART_NUMBER_PTR);
1342 if (idx == 0)
1343 idx = 0x80;
1344
1345 str = CSTR(idx);
1346 if (*str != '\0') {
1347 pr_info("ATOM BIOS: %s\n", str);
1348 strlcpy(ctx->vbios_version, str, sizeof(ctx->vbios_version));
1349 }
1350
1351
1352 return ctx;
1353 }
1354
1355 int amdgpu_atom_asic_init(struct atom_context *ctx)
1356 {
1357 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1358 uint32_t ps[16];
1359 int ret;
1360
1361 memset(ps, 0, 64);
1362
1363 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1364 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1365 if (!ps[0] || !ps[1])
1366 return 1;
1367
1368 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1369 return 1;
1370 ret = amdgpu_atom_execute_table(ctx, ATOM_CMD_INIT, ps);
1371 if (ret)
1372 return ret;
1373
1374 memset(ps, 0, 64);
1375
1376 return ret;
1377 }
1378
1379 void amdgpu_atom_destroy(struct atom_context *ctx)
1380 {
1381 kfree(ctx->iio);
1382 kfree(ctx);
1383 }
1384
1385 bool amdgpu_atom_parse_data_header(struct atom_context *ctx, int index,
1386 uint16_t * size, uint8_t * frev, uint8_t * crev,
1387 uint16_t * data_start)
1388 {
1389 int offset = index * 2 + 4;
1390 int idx = CU16(ctx->data_table + offset);
1391 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1392
1393 if (!mdt[index])
1394 return false;
1395
1396 if (size)
1397 *size = CU16(idx);
1398 if (frev)
1399 *frev = CU8(idx + 2);
1400 if (crev)
1401 *crev = CU8(idx + 3);
1402 *data_start = idx;
1403 return true;
1404 }
1405
1406 bool amdgpu_atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev,
1407 uint8_t * crev)
1408 {
1409 int offset = index * 2 + 4;
1410 int idx = CU16(ctx->cmd_table + offset);
1411 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1412
1413 if (!mct[index])
1414 return false;
1415
1416 if (frev)
1417 *frev = CU8(idx + 2);
1418 if (crev)
1419 *crev = CU8(idx + 3);
1420 return true;
1421 }
1422
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git