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Revert "i915: restore only the mode of this driver on lastclose"
[deliverable/linux.git] / drivers / gpu / drm / radeon / atom.c
CommitLineData
771fe6b9
JG		 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>
5a0e3ad6 27#include <linux/slab.h>
ce36f00d 28#include <asm/unaligned.h>
771fe6b9
JG		 29
30#define ATOM_DEBUG
31
32#include "atom.h"
33#include "atom-names.h"
34#include "atom-bits.h"
71e16bfb 35#include "radeon.h"
771fe6b9
JG		 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
55typedef struct {
56 struct atom_context *ctx;
771fe6b9
JG		 57 uint32_t *ps, *ws;
58 int ps_shift;
59 uint16_t start;
c21b0fe6
JG		 60 unsigned last_jump;
61 unsigned long last_jump_jiffies;
62 bool abort;
771fe6b9
JG		 63} atom_exec_context;
64
65int atom_debug = 0;
c21b0fe6
JG		 66static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params);
67int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params);
771fe6b9
JG		 68
69static uint32_t atom_arg_mask[8] =
70 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
710xFF000000 };
72static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
73
74static 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};
85static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
86
87static int debug_depth = 0;
88#ifdef ATOM_DEBUG
89static void debug_print_spaces(int n)
90{
91 while (n--)
92 printk(" ");
93}
94
95#define DEBUG(...) do if (atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
96#define SDEBUG(...) do if (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
102static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
103 uint32_t index, uint32_t data)
104{
71e16bfb 105 struct radeon_device *rdev = ctx->card->dev->dev_private;
771fe6b9 106 uint32_t temp = 0xCDCDCDCD;
71e16bfb 107
771fe6b9
JG		 108 while (1)
109 switch (CU8(base)) {
110 case ATOM_IIO_NOP:
111 base++;
112 break;
113 case ATOM_IIO_READ:
351a52a2 114 temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1));
771fe6b9
JG		 115 base += 3;
116 break;
117 case ATOM_IIO_WRITE:
71e16bfb
AD		 118 if (rdev->family == CHIP_RV515)
119 (void)ctx->card->ioreg_read(ctx->card, CU16(base + 1));
351a52a2 120 ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp);
771fe6b9
JG		 121 base += 3;
122 break;
123 case ATOM_IIO_CLEAR:
124 temp &=
125 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
126 CU8(base + 2));
127 base += 3;
128 break;
129 case ATOM_IIO_SET:
130 temp |=
131 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base +
132 2);
133 base += 3;
134 break;
135 case ATOM_IIO_MOVE_INDEX:
136 temp &=
137 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
138 CU8(base + 2));
139 temp |=
140 ((index >> CU8(base + 2)) &
141 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
142 3);
143 base += 4;
144 break;
145 case ATOM_IIO_MOVE_DATA:
146 temp &=
147 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
148 CU8(base + 2));
149 temp |=
150 ((data >> CU8(base + 2)) &
151 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
152 3);
153 base += 4;
154 break;
155 case ATOM_IIO_MOVE_ATTR:
156 temp &=
157 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
158 CU8(base + 2));
159 temp |=
160 ((ctx->
161 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 -
162 CU8
163 (base
164 +
165 1))))
166 << CU8(base + 3);
167 base += 4;
168 break;
169 case ATOM_IIO_END:
170 return temp;
171 default:
172 printk(KERN_INFO "Unknown IIO opcode.\n");
173 return 0;
174 }
175}
176
177static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
178 int *ptr, uint32_t *saved, int print)
179{
180 uint32_t idx, val = 0xCDCDCDCD, align, arg;
181 struct atom_context *gctx = ctx->ctx;
182 arg = attr & 7;
183 align = (attr >> 3) & 7;
184 switch (arg) {
185 case ATOM_ARG_REG:
186 idx = U16(*ptr);
187 (*ptr) += 2;
188 if (print)
189 DEBUG("REG[0x%04X]", idx);
190 idx += gctx->reg_block;
191 switch (gctx->io_mode) {
192 case ATOM_IO_MM:
193 val = gctx->card->reg_read(gctx->card, idx);
194 break;
195 case ATOM_IO_PCI:
196 printk(KERN_INFO
197 "PCI registers are not implemented.\n");
198 return 0;
199 case ATOM_IO_SYSIO:
200 printk(KERN_INFO
201 "SYSIO registers are not implemented.\n");
202 return 0;
203 default:
204 if (!(gctx->io_mode & 0x80)) {
205 printk(KERN_INFO "Bad IO mode.\n");
206 return 0;
207 }
208 if (!gctx->iio[gctx->io_mode & 0x7F]) {
209 printk(KERN_INFO
210 "Undefined indirect IO read method %d.\n",
211 gctx->io_mode & 0x7F);
212 return 0;
213 }
214 val =
215 atom_iio_execute(gctx,
216 gctx->iio[gctx->io_mode & 0x7F],
217 idx, 0);
218 }
219 break;
220 case ATOM_ARG_PS:
221 idx = U8(*ptr);
222 (*ptr)++;
ce36f00d
MT		 223 /* get_unaligned_le32 avoids unaligned accesses from atombios
224 * tables, noticed on a DEC Alpha. */
225 val = get_unaligned_le32((u32 *)&ctx->ps[idx]);
771fe6b9
JG		 226 if (print)
227 DEBUG("PS[0x%02X,0x%04X]", idx, val);
228 break;
229 case ATOM_ARG_WS:
230 idx = U8(*ptr);
231 (*ptr)++;
232 if (print)
233 DEBUG("WS[0x%02X]", idx);
234 switch (idx) {
235 case ATOM_WS_QUOTIENT:
236 val = gctx->divmul[0];
237 break;
238 case ATOM_WS_REMAINDER:
239 val = gctx->divmul[1];
240 break;
241 case ATOM_WS_DATAPTR:
242 val = gctx->data_block;
243 break;
244 case ATOM_WS_SHIFT:
245 val = gctx->shift;
246 break;
247 case ATOM_WS_OR_MASK:
248 val = 1 << gctx->shift;
249 break;
250 case ATOM_WS_AND_MASK:
251 val = ~(1 << gctx->shift);
252 break;
253 case ATOM_WS_FB_WINDOW:
254 val = gctx->fb_base;
255 break;
256 case ATOM_WS_ATTRIBUTES:
257 val = gctx->io_attr;
258 break;
e2f8e870
AD		 259 case ATOM_WS_REGPTR:
260 val = gctx->reg_block;
261 break;
771fe6b9
JG		 262 default:
263 val = ctx->ws[idx];
264 }
265 break;
266 case ATOM_ARG_ID:
267 idx = U16(*ptr);
268 (*ptr) += 2;
269 if (print) {
270 if (gctx->data_block)
271 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
272 else
273 DEBUG("ID[0x%04X]", idx);
274 }
275 val = U32(idx + gctx->data_block);
276 break;
277 case ATOM_ARG_FB:
278 idx = U8(*ptr);
279 (*ptr)++;
d904ef9b 280 val = gctx->scratch[((gctx->fb_base + idx) / 4)];
771fe6b9
JG		 281 if (print)
282 DEBUG("FB[0x%02X]", idx);
d904ef9b 283 break;
771fe6b9
JG		 284 case ATOM_ARG_IMM:
285 switch (align) {
286 case ATOM_SRC_DWORD:
287 val = U32(*ptr);
288 (*ptr) += 4;
289 if (print)
290 DEBUG("IMM 0x%08X\n", val);
291 return val;
292 case ATOM_SRC_WORD0:
293 case ATOM_SRC_WORD8:
294 case ATOM_SRC_WORD16:
295 val = U16(*ptr);
296 (*ptr) += 2;
297 if (print)
298 DEBUG("IMM 0x%04X\n", val);
299 return val;
300 case ATOM_SRC_BYTE0:
301 case ATOM_SRC_BYTE8:
302 case ATOM_SRC_BYTE16:
303 case ATOM_SRC_BYTE24:
304 val = U8(*ptr);
305 (*ptr)++;
306 if (print)
307 DEBUG("IMM 0x%02X\n", val);
308 return val;
309 }
310 return 0;
311 case ATOM_ARG_PLL:
312 idx = U8(*ptr);
313 (*ptr)++;
314 if (print)
315 DEBUG("PLL[0x%02X]", idx);
316 val = gctx->card->pll_read(gctx->card, idx);
317 break;
318 case ATOM_ARG_MC:
319 idx = U8(*ptr);
320 (*ptr)++;
321 if (print)
322 DEBUG("MC[0x%02X]", idx);
323 val = gctx->card->mc_read(gctx->card, idx);
324 break;
325 }
326 if (saved)
327 *saved = val;
328 val &= atom_arg_mask[align];
329 val >>= atom_arg_shift[align];
330 if (print)
331 switch (align) {
332 case ATOM_SRC_DWORD:
333 DEBUG(".[31:0] -> 0x%08X\n", val);
334 break;
335 case ATOM_SRC_WORD0:
336 DEBUG(".[15:0] -> 0x%04X\n", val);
337 break;
338 case ATOM_SRC_WORD8:
339 DEBUG(".[23:8] -> 0x%04X\n", val);
340 break;
341 case ATOM_SRC_WORD16:
342 DEBUG(".[31:16] -> 0x%04X\n", val);
343 break;
344 case ATOM_SRC_BYTE0:
345 DEBUG(".[7:0] -> 0x%02X\n", val);
346 break;
347 case ATOM_SRC_BYTE8:
348 DEBUG(".[15:8] -> 0x%02X\n", val);
349 break;
350 case ATOM_SRC_BYTE16:
351 DEBUG(".[23:16] -> 0x%02X\n", val);
352 break;
353 case ATOM_SRC_BYTE24:
354 DEBUG(".[31:24] -> 0x%02X\n", val);
355 break;
356 }
357 return val;
358}
359
360static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
361{
362 uint32_t align = (attr >> 3) & 7, arg = attr & 7;
363 switch (arg) {
364 case ATOM_ARG_REG:
365 case ATOM_ARG_ID:
366 (*ptr) += 2;
367 break;
368 case ATOM_ARG_PLL:
369 case ATOM_ARG_MC:
370 case ATOM_ARG_PS:
371 case ATOM_ARG_WS:
372 case ATOM_ARG_FB:
373 (*ptr)++;
374 break;
375 case ATOM_ARG_IMM:
376 switch (align) {
377 case ATOM_SRC_DWORD:
378 (*ptr) += 4;
379 return;
380 case ATOM_SRC_WORD0:
381 case ATOM_SRC_WORD8:
382 case ATOM_SRC_WORD16:
383 (*ptr) += 2;
384 return;
385 case ATOM_SRC_BYTE0:
386 case ATOM_SRC_BYTE8:
387 case ATOM_SRC_BYTE16:
388 case ATOM_SRC_BYTE24:
389 (*ptr)++;
390 return;
391 }
392 return;
393 }
394}
395
396static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
397{
398 return atom_get_src_int(ctx, attr, ptr, NULL, 1);
399}
400
9f53e793
AD		 401static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
402{
403 uint32_t val = 0xCDCDCDCD;
404
405 switch (align) {
406 case ATOM_SRC_DWORD:
407 val = U32(*ptr);
408 (*ptr) += 4;
409 break;
410 case ATOM_SRC_WORD0:
411 case ATOM_SRC_WORD8:
412 case ATOM_SRC_WORD16:
413 val = U16(*ptr);
414 (*ptr) += 2;
415 break;
416 case ATOM_SRC_BYTE0:
417 case ATOM_SRC_BYTE8:
418 case ATOM_SRC_BYTE16:
419 case ATOM_SRC_BYTE24:
420 val = U8(*ptr);
421 (*ptr)++;
422 break;
423 }
424 return val;
425}
426
771fe6b9
JG		 427static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
428 int *ptr, uint32_t *saved, int print)
429{
430 return atom_get_src_int(ctx,
431 arg | atom_dst_to_src[(attr >> 3) &
432 7][(attr >> 6) & 3] << 3,
433 ptr, saved, print);
434}
435
436static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
437{
438 atom_skip_src_int(ctx,
439 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
440 3] << 3, ptr);
441}
442
443static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
444 int *ptr, uint32_t val, uint32_t saved)
445{
446 uint32_t align =
447 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
448 val, idx;
449 struct atom_context *gctx = ctx->ctx;
450 old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
451 val <<= atom_arg_shift[align];
452 val &= atom_arg_mask[align];
453 saved &= ~atom_arg_mask[align];
454 val |= saved;
455 switch (arg) {
456 case ATOM_ARG_REG:
457 idx = U16(*ptr);
458 (*ptr) += 2;
459 DEBUG("REG[0x%04X]", idx);
460 idx += gctx->reg_block;
461 switch (gctx->io_mode) {
462 case ATOM_IO_MM:
463 if (idx == 0)
464 gctx->card->reg_write(gctx->card, idx,
465 val << 2);
466 else
467 gctx->card->reg_write(gctx->card, idx, val);
468 break;
469 case ATOM_IO_PCI:
470 printk(KERN_INFO
471 "PCI registers are not implemented.\n");
472 return;
473 case ATOM_IO_SYSIO:
474 printk(KERN_INFO
475 "SYSIO registers are not implemented.\n");
476 return;
477 default:
478 if (!(gctx->io_mode & 0x80)) {
479 printk(KERN_INFO "Bad IO mode.\n");
480 return;
481 }
482 if (!gctx->iio[gctx->io_mode & 0xFF]) {
483 printk(KERN_INFO
484 "Undefined indirect IO write method %d.\n",
485 gctx->io_mode & 0x7F);
486 return;
487 }
488 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
489 idx, val);
490 }
491 break;
492 case ATOM_ARG_PS:
493 idx = U8(*ptr);
494 (*ptr)++;
495 DEBUG("PS[0x%02X]", idx);
496 ctx->ps[idx] = cpu_to_le32(val);
497 break;
498 case ATOM_ARG_WS:
499 idx = U8(*ptr);
500 (*ptr)++;
501 DEBUG("WS[0x%02X]", idx);
502 switch (idx) {
503 case ATOM_WS_QUOTIENT:
504 gctx->divmul[0] = val;
505 break;
506 case ATOM_WS_REMAINDER:
507 gctx->divmul[1] = val;
508 break;
509 case ATOM_WS_DATAPTR:
510 gctx->data_block = val;
511 break;
512 case ATOM_WS_SHIFT:
513 gctx->shift = val;
514 break;
515 case ATOM_WS_OR_MASK:
516 case ATOM_WS_AND_MASK:
517 break;
518 case ATOM_WS_FB_WINDOW:
519 gctx->fb_base = val;
520 break;
521 case ATOM_WS_ATTRIBUTES:
522 gctx->io_attr = val;
523 break;
e2f8e870
AD		 524 case ATOM_WS_REGPTR:
525 gctx->reg_block = val;
526 break;
771fe6b9
JG		 527 default:
528 ctx->ws[idx] = val;
529 }
530 break;
531 case ATOM_ARG_FB:
532 idx = U8(*ptr);
533 (*ptr)++;
d904ef9b 534 gctx->scratch[((gctx->fb_base + idx) / 4)] = val;
771fe6b9 535 DEBUG("FB[0x%02X]", idx);
d904ef9b 536 break;
771fe6b9
JG		 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
578static 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
592static 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
606static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
607{
608 printk("ATOM BIOS beeped!\n");
609}
610
611static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
612{
613 int idx = U8((*ptr)++);
c21b0fe6
JG		 614 int r = 0;
615
771fe6b9
JG		 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))
c21b0fe6
JG		 621 r = atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift);
622 if (r) {
623 ctx->abort = true;
624 }
771fe6b9
JG		 625}
626
627static 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
639static 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
653static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
654{
655 uint8_t count = U8((*ptr)++);
656 SDEBUG(" count: %d\n", count);
657 if (arg == ATOM_UNIT_MICROSEC)
01d45039 658 udelay(count);
771fe6b9
JG		 659 else
660 schedule_timeout_uninterruptible(msecs_to_jiffies(count));
661}
662
663static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
664{
665 uint8_t attr = U8((*ptr)++);
666 uint32_t dst, src;
667 SDEBUG(" src1: ");
668 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
669 SDEBUG(" src2: ");
670 src = atom_get_src(ctx, attr, ptr);
671 if (src != 0) {
672 ctx->ctx->divmul[0] = dst / src;
673 ctx->ctx->divmul[1] = dst % src;
674 } else {
675 ctx->ctx->divmul[0] = 0;
676 ctx->ctx->divmul[1] = 0;
677 }
678}
679
680static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
681{
682 /* functionally, a nop */
683}
684
685static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
686{
687 int execute = 0, target = U16(*ptr);
c21b0fe6
JG		 688 unsigned long cjiffies;
689
771fe6b9
JG		 690 (*ptr) += 2;
691 switch (arg) {
692 case ATOM_COND_ABOVE:
693 execute = ctx->ctx->cs_above;
694 break;
695 case ATOM_COND_ABOVEOREQUAL:
696 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
697 break;
698 case ATOM_COND_ALWAYS:
699 execute = 1;
700 break;
701 case ATOM_COND_BELOW:
702 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
703 break;
704 case ATOM_COND_BELOWOREQUAL:
705 execute = !ctx->ctx->cs_above;
706 break;
707 case ATOM_COND_EQUAL:
708 execute = ctx->ctx->cs_equal;
709 break;
710 case ATOM_COND_NOTEQUAL:
711 execute = !ctx->ctx->cs_equal;
712 break;
713 }
714 if (arg != ATOM_COND_ALWAYS)
715 SDEBUG(" taken: %s\n", execute ? "yes" : "no");
716 SDEBUG(" target: 0x%04X\n", target);
c21b0fe6
JG		 717 if (execute) {
718 if (ctx->last_jump == (ctx->start + target)) {
719 cjiffies = jiffies;
720 if (time_after(cjiffies, ctx->last_jump_jiffies)) {
721 cjiffies -= ctx->last_jump_jiffies;
9bd7ef5f
AD		 722 if ((jiffies_to_msecs(cjiffies) > 5000)) {
723 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n");
c21b0fe6
JG		 724 ctx->abort = true;
725 }
726 } else {
727 /* jiffies wrap around we will just wait a little longer */
728 ctx->last_jump_jiffies = jiffies;
729 }
730 } else {
731 ctx->last_jump = ctx->start + target;
732 ctx->last_jump_jiffies = jiffies;
733 }
771fe6b9 734 *ptr = ctx->start + target;
c21b0fe6 735 }
771fe6b9
JG		 736}
737
738static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
739{
740 uint8_t attr = U8((*ptr)++);
7d6aa80c 741 uint32_t dst, mask, src, saved;
771fe6b9
JG		 742 int dptr = *ptr;
743 SDEBUG(" dst: ");
744 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
7d6aa80c
AD		 745 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
746 SDEBUG(" mask: 0x%08x", mask);
747 SDEBUG(" src: ");
748 src = atom_get_src(ctx, attr, ptr);
749 dst &= mask;
750 dst |= src;
771fe6b9
JG		 751 SDEBUG(" dst: ");
752 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
753}
754
755static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
756{
757 uint8_t attr = U8((*ptr)++);
758 uint32_t src, saved;
759 int dptr = *ptr;
760 if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
761 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
762 else {
763 atom_skip_dst(ctx, arg, attr, ptr);
764 saved = 0xCDCDCDCD;
765 }
766 SDEBUG(" src: ");
767 src = atom_get_src(ctx, attr, ptr);
768 SDEBUG(" dst: ");
769 atom_put_dst(ctx, arg, attr, &dptr, src, saved);
770}
771
772static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
773{
774 uint8_t attr = U8((*ptr)++);
775 uint32_t dst, src;
776 SDEBUG(" src1: ");
777 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
778 SDEBUG(" src2: ");
779 src = atom_get_src(ctx, attr, ptr);
780 ctx->ctx->divmul[0] = dst * src;
781}
782
783static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
784{
785 /* nothing */
786}
787
788static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
789{
790 uint8_t attr = U8((*ptr)++);
791 uint32_t dst, src, saved;
792 int dptr = *ptr;
793 SDEBUG(" dst: ");
794 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
795 SDEBUG(" src: ");
796 src = atom_get_src(ctx, attr, ptr);
797 dst |= src;
798 SDEBUG(" dst: ");
799 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
800}
801
802static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
803{
804 uint8_t val = U8((*ptr)++);
805 SDEBUG("POST card output: 0x%02X\n", val);
806}
807
808static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
809{
810 printk(KERN_INFO "unimplemented!\n");
811}
812
813static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
814{
815 printk(KERN_INFO "unimplemented!\n");
816}
817
818static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
819{
820 printk(KERN_INFO "unimplemented!\n");
821}
822
823static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
824{
825 int idx = U8(*ptr);
826 (*ptr)++;
827 SDEBUG(" block: %d\n", idx);
828 if (!idx)
829 ctx->ctx->data_block = 0;
830 else if (idx == 255)
831 ctx->ctx->data_block = ctx->start;
832 else
833 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
834 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block);
835}
836
837static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
838{
839 uint8_t attr = U8((*ptr)++);
840 SDEBUG(" fb_base: ");
841 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
842}
843
844static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
845{
846 int port;
847 switch (arg) {
848 case ATOM_PORT_ATI:
849 port = U16(*ptr);
850 if (port < ATOM_IO_NAMES_CNT)
851 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]);
852 else
853 SDEBUG(" port: %d\n", port);
854 if (!port)
855 ctx->ctx->io_mode = ATOM_IO_MM;
856 else
857 ctx->ctx->io_mode = ATOM_IO_IIO | port;
858 (*ptr) += 2;
859 break;
860 case ATOM_PORT_PCI:
861 ctx->ctx->io_mode = ATOM_IO_PCI;
862 (*ptr)++;
863 break;
864 case ATOM_PORT_SYSIO:
865 ctx->ctx->io_mode = ATOM_IO_SYSIO;
866 (*ptr)++;
867 break;
868 }
869}
870
871static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
872{
873 ctx->ctx->reg_block = U16(*ptr);
874 (*ptr) += 2;
875 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block);
876}
877
9f53e793
AD		 878static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
879{
880 uint8_t attr = U8((*ptr)++), shift;
881 uint32_t saved, dst;
882 int dptr = *ptr;
883 attr &= 0x38;
884 attr |= atom_def_dst[attr >> 3] << 6;
885 SDEBUG(" dst: ");
886 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
887 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
888 SDEBUG(" shift: %d\n", shift);
889 dst <<= shift;
890 SDEBUG(" dst: ");
891 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
892}
893
894static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
895{
896 uint8_t attr = U8((*ptr)++), shift;
897 uint32_t saved, dst;
898 int dptr = *ptr;
899 attr &= 0x38;
900 attr |= atom_def_dst[attr >> 3] << 6;
901 SDEBUG(" dst: ");
902 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
903 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
904 SDEBUG(" shift: %d\n", shift);
905 dst >>= shift;
906 SDEBUG(" dst: ");
907 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
908}
909
771fe6b9
JG		 910static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
911{
912 uint8_t attr = U8((*ptr)++), shift;
913 uint32_t saved, dst;
914 int dptr = *ptr;
65384a1d 915 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
771fe6b9
JG		 916 SDEBUG(" dst: ");
917 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
65384a1d
AD		 918 /* op needs to full dst value */
919 dst = saved;
9f53e793 920 shift = atom_get_src(ctx, attr, ptr);
771fe6b9
JG		 921 SDEBUG(" shift: %d\n", shift);
922 dst <<= shift;
65384a1d
AD		 923 dst &= atom_arg_mask[dst_align];
924 dst >>= atom_arg_shift[dst_align];
771fe6b9
JG		 925 SDEBUG(" dst: ");
926 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
927}
928
929static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
930{
931 uint8_t attr = U8((*ptr)++), shift;
932 uint32_t saved, dst;
933 int dptr = *ptr;
65384a1d 934 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
771fe6b9
JG		 935 SDEBUG(" dst: ");
936 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
65384a1d
AD		 937 /* op needs to full dst value */
938 dst = saved;
9f53e793 939 shift = atom_get_src(ctx, attr, ptr);
771fe6b9
JG		 940 SDEBUG(" shift: %d\n", shift);
941 dst >>= shift;
65384a1d
AD		 942 dst &= atom_arg_mask[dst_align];
943 dst >>= atom_arg_shift[dst_align];
771fe6b9
JG		 944 SDEBUG(" dst: ");
945 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
946}
947
948static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
949{
950 uint8_t attr = U8((*ptr)++);
951 uint32_t dst, src, saved;
952 int dptr = *ptr;
953 SDEBUG(" dst: ");
954 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
955 SDEBUG(" src: ");
956 src = atom_get_src(ctx, attr, ptr);
957 dst -= src;
958 SDEBUG(" dst: ");
959 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
960}
961
962static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
963{
964 uint8_t attr = U8((*ptr)++);
965 uint32_t src, val, target;
966 SDEBUG(" switch: ");
967 src = atom_get_src(ctx, attr, ptr);
968 while (U16(*ptr) != ATOM_CASE_END)
969 if (U8(*ptr) == ATOM_CASE_MAGIC) {
970 (*ptr)++;
971 SDEBUG(" case: ");
972 val =
973 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
974 ptr);
975 target = U16(*ptr);
976 if (val == src) {
977 SDEBUG(" target: %04X\n", target);
978 *ptr = ctx->start + target;
979 return;
980 }
981 (*ptr) += 2;
982 } else {
983 printk(KERN_INFO "Bad case.\n");
984 return;
985 }
986 (*ptr) += 2;
987}
988
989static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
990{
991 uint8_t attr = U8((*ptr)++);
992 uint32_t dst, src;
993 SDEBUG(" src1: ");
994 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
995 SDEBUG(" src2: ");
996 src = atom_get_src(ctx, attr, ptr);
997 ctx->ctx->cs_equal = ((dst & src) == 0);
998 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
999}
1000
1001static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
1002{
1003 uint8_t attr = U8((*ptr)++);
1004 uint32_t dst, src, saved;
1005 int dptr = *ptr;
1006 SDEBUG(" dst: ");
1007 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1008 SDEBUG(" src: ");
1009 src = atom_get_src(ctx, attr, ptr);
1010 dst ^= src;
1011 SDEBUG(" dst: ");
1012 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1013}
1014
1015static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1016{
1017 printk(KERN_INFO "unimplemented!\n");
1018}
1019
1020static struct {
1021 void (*func) (atom_exec_context *, int *, int);
1022 int arg;
1023} opcode_table[ATOM_OP_CNT] = {
1024 {
1025 NULL, 0}, {
1026 atom_op_move, ATOM_ARG_REG}, {
1027 atom_op_move, ATOM_ARG_PS}, {
1028 atom_op_move, ATOM_ARG_WS}, {
1029 atom_op_move, ATOM_ARG_FB}, {
1030 atom_op_move, ATOM_ARG_PLL}, {
1031 atom_op_move, ATOM_ARG_MC}, {
1032 atom_op_and, ATOM_ARG_REG}, {
1033 atom_op_and, ATOM_ARG_PS}, {
1034 atom_op_and, ATOM_ARG_WS}, {
1035 atom_op_and, ATOM_ARG_FB}, {
1036 atom_op_and, ATOM_ARG_PLL}, {
1037 atom_op_and, ATOM_ARG_MC}, {
1038 atom_op_or, ATOM_ARG_REG}, {
1039 atom_op_or, ATOM_ARG_PS}, {
1040 atom_op_or, ATOM_ARG_WS}, {
1041 atom_op_or, ATOM_ARG_FB}, {
1042 atom_op_or, ATOM_ARG_PLL}, {
1043 atom_op_or, ATOM_ARG_MC}, {
9f53e793
AD		 1044 atom_op_shift_left, ATOM_ARG_REG}, {
1045 atom_op_shift_left, ATOM_ARG_PS}, {
1046 atom_op_shift_left, ATOM_ARG_WS}, {
1047 atom_op_shift_left, ATOM_ARG_FB}, {
1048 atom_op_shift_left, ATOM_ARG_PLL}, {
1049 atom_op_shift_left, ATOM_ARG_MC}, {
1050 atom_op_shift_right, ATOM_ARG_REG}, {
1051 atom_op_shift_right, ATOM_ARG_PS}, {
1052 atom_op_shift_right, ATOM_ARG_WS}, {
1053 atom_op_shift_right, ATOM_ARG_FB}, {
1054 atom_op_shift_right, ATOM_ARG_PLL}, {
1055 atom_op_shift_right, ATOM_ARG_MC}, {
771fe6b9
JG		 1056 atom_op_mul, ATOM_ARG_REG}, {
1057 atom_op_mul, ATOM_ARG_PS}, {
1058 atom_op_mul, ATOM_ARG_WS}, {
1059 atom_op_mul, ATOM_ARG_FB}, {
1060 atom_op_mul, ATOM_ARG_PLL}, {
1061 atom_op_mul, ATOM_ARG_MC}, {
1062 atom_op_div, ATOM_ARG_REG}, {
1063 atom_op_div, ATOM_ARG_PS}, {
1064 atom_op_div, ATOM_ARG_WS}, {
1065 atom_op_div, ATOM_ARG_FB}, {
1066 atom_op_div, ATOM_ARG_PLL}, {
1067 atom_op_div, ATOM_ARG_MC}, {
1068 atom_op_add, ATOM_ARG_REG}, {
1069 atom_op_add, ATOM_ARG_PS}, {
1070 atom_op_add, ATOM_ARG_WS}, {
1071 atom_op_add, ATOM_ARG_FB}, {
1072 atom_op_add, ATOM_ARG_PLL}, {
1073 atom_op_add, ATOM_ARG_MC}, {
1074 atom_op_sub, ATOM_ARG_REG}, {
1075 atom_op_sub, ATOM_ARG_PS}, {
1076 atom_op_sub, ATOM_ARG_WS}, {
1077 atom_op_sub, ATOM_ARG_FB}, {
1078 atom_op_sub, ATOM_ARG_PLL}, {
1079 atom_op_sub, ATOM_ARG_MC}, {
1080 atom_op_setport, ATOM_PORT_ATI}, {
1081 atom_op_setport, ATOM_PORT_PCI}, {
1082 atom_op_setport, ATOM_PORT_SYSIO}, {
1083 atom_op_setregblock, 0}, {
1084 atom_op_setfbbase, 0}, {
1085 atom_op_compare, ATOM_ARG_REG}, {
1086 atom_op_compare, ATOM_ARG_PS}, {
1087 atom_op_compare, ATOM_ARG_WS}, {
1088 atom_op_compare, ATOM_ARG_FB}, {
1089 atom_op_compare, ATOM_ARG_PLL}, {
1090 atom_op_compare, ATOM_ARG_MC}, {
1091 atom_op_switch, 0}, {
1092 atom_op_jump, ATOM_COND_ALWAYS}, {
1093 atom_op_jump, ATOM_COND_EQUAL}, {
1094 atom_op_jump, ATOM_COND_BELOW}, {
1095 atom_op_jump, ATOM_COND_ABOVE}, {
1096 atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1097 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1098 atom_op_jump, ATOM_COND_NOTEQUAL}, {
1099 atom_op_test, ATOM_ARG_REG}, {
1100 atom_op_test, ATOM_ARG_PS}, {
1101 atom_op_test, ATOM_ARG_WS}, {
1102 atom_op_test, ATOM_ARG_FB}, {
1103 atom_op_test, ATOM_ARG_PLL}, {
1104 atom_op_test, ATOM_ARG_MC}, {
1105 atom_op_delay, ATOM_UNIT_MILLISEC}, {
1106 atom_op_delay, ATOM_UNIT_MICROSEC}, {
1107 atom_op_calltable, 0}, {
1108 atom_op_repeat, 0}, {
1109 atom_op_clear, ATOM_ARG_REG}, {
1110 atom_op_clear, ATOM_ARG_PS}, {
1111 atom_op_clear, ATOM_ARG_WS}, {
1112 atom_op_clear, ATOM_ARG_FB}, {
1113 atom_op_clear, ATOM_ARG_PLL}, {
1114 atom_op_clear, ATOM_ARG_MC}, {
1115 atom_op_nop, 0}, {
1116 atom_op_eot, 0}, {
1117 atom_op_mask, ATOM_ARG_REG}, {
1118 atom_op_mask, ATOM_ARG_PS}, {
1119 atom_op_mask, ATOM_ARG_WS}, {
1120 atom_op_mask, ATOM_ARG_FB}, {
1121 atom_op_mask, ATOM_ARG_PLL}, {
1122 atom_op_mask, ATOM_ARG_MC}, {
1123 atom_op_postcard, 0}, {
1124 atom_op_beep, 0}, {
1125 atom_op_savereg, 0}, {
1126 atom_op_restorereg, 0}, {
1127 atom_op_setdatablock, 0}, {
1128 atom_op_xor, ATOM_ARG_REG}, {
1129 atom_op_xor, ATOM_ARG_PS}, {
1130 atom_op_xor, ATOM_ARG_WS}, {
1131 atom_op_xor, ATOM_ARG_FB}, {
1132 atom_op_xor, ATOM_ARG_PLL}, {
1133 atom_op_xor, ATOM_ARG_MC}, {
1134 atom_op_shl, ATOM_ARG_REG}, {
1135 atom_op_shl, ATOM_ARG_PS}, {
1136 atom_op_shl, ATOM_ARG_WS}, {
1137 atom_op_shl, ATOM_ARG_FB}, {
1138 atom_op_shl, ATOM_ARG_PLL}, {
1139 atom_op_shl, ATOM_ARG_MC}, {
1140 atom_op_shr, ATOM_ARG_REG}, {
1141 atom_op_shr, ATOM_ARG_PS}, {
1142 atom_op_shr, ATOM_ARG_WS}, {
1143 atom_op_shr, ATOM_ARG_FB}, {
1144 atom_op_shr, ATOM_ARG_PLL}, {
1145 atom_op_shr, ATOM_ARG_MC}, {
1146atom_op_debug, 0},};
1147
c21b0fe6 1148static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params)
771fe6b9
JG		 1149{
1150 int base = CU16(ctx->cmd_table + 4 + 2 * index);
1151 int len, ws, ps, ptr;
1152 unsigned char op;
1153 atom_exec_context ectx;
01a356fd 1154 int ret = 0;
771fe6b9
JG		 1155
1156 if (!base)
c21b0fe6 1157 return -EINVAL;
771fe6b9
JG		 1158
1159 len = CU16(base + ATOM_CT_SIZE_PTR);
1160 ws = CU8(base + ATOM_CT_WS_PTR);
1161 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1162 ptr = base + ATOM_CT_CODE_PTR;
1163
1164 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1165
771fe6b9
JG		 1166 ectx.ctx = ctx;
1167 ectx.ps_shift = ps / 4;
1168 ectx.start = base;
1169 ectx.ps = params;
c21b0fe6
JG		 1170 ectx.abort = false;
1171 ectx.last_jump = 0;
771fe6b9
JG		 1172 if (ws)
1173 ectx.ws = kzalloc(4 * ws, GFP_KERNEL);
1174 else
1175 ectx.ws = NULL;
1176
1177 debug_depth++;
1178 while (1) {
1179 op = CU8(ptr++);
1180 if (op < ATOM_OP_NAMES_CNT)
1181 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1182 else
1183 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
c21b0fe6
JG		 1184 if (ectx.abort) {
1185 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1186 base, len, ws, ps, ptr - 1);
01a356fd
DC		 1187 ret = -EINVAL;
1188 goto free;
c21b0fe6 1189 }
771fe6b9
JG		 1190
1191 if (op < ATOM_OP_CNT && op > 0)
1192 opcode_table[op].func(&ectx, &ptr,
1193 opcode_table[op].arg);
1194 else
1195 break;
1196
1197 if (op == ATOM_OP_EOT)
1198 break;
1199 }
1200 debug_depth--;
1201 SDEBUG("<<\n");
1202
01a356fd 1203free:
771fe6b9
JG		 1204 if (ws)
1205 kfree(ectx.ws);
01a356fd 1206 return ret;
771fe6b9
JG		 1207}
1208
c21b0fe6 1209int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
c31ad97f 1210{
c21b0fe6
JG		 1211 int r;
1212
c31ad97f 1213 mutex_lock(&ctx->mutex);
947bfc83
AD		 1214 /* reset reg block */
1215 ctx->reg_block = 0;
1216 /* reset fb window */
1217 ctx->fb_base = 0;
1218 /* reset io mode */
1219 ctx->io_mode = ATOM_IO_MM;
c21b0fe6 1220 r = atom_execute_table_locked(ctx, index, params);
c31ad97f 1221 mutex_unlock(&ctx->mutex);
c21b0fe6 1222 return r;
c31ad97f
RM		 1223}
1224
771fe6b9
JG		 1225static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1226
1227static void atom_index_iio(struct atom_context *ctx, int base)
1228{
1229 ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1230 while (CU8(base) == ATOM_IIO_START) {
1231 ctx->iio[CU8(base + 1)] = base + 2;
1232 base += 2;
1233 while (CU8(base) != ATOM_IIO_END)
1234 base += atom_iio_len[CU8(base)];
1235 base += 3;
1236 }
1237}
1238
1239struct atom_context *atom_parse(struct card_info *card, void *bios)
1240{
1241 int base;
1242 struct atom_context *ctx =
1243 kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1244 char *str;
1245 char name[512];
1246 int i;
1247
1248 ctx->card = card;
1249 ctx->bios = bios;
1250
1251 if (CU16(0) != ATOM_BIOS_MAGIC) {
1252 printk(KERN_INFO "Invalid BIOS magic.\n");
1253 kfree(ctx);
1254 return NULL;
1255 }
1256 if (strncmp
1257 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1258 strlen(ATOM_ATI_MAGIC))) {
1259 printk(KERN_INFO "Invalid ATI magic.\n");
1260 kfree(ctx);
1261 return NULL;
1262 }
1263
1264 base = CU16(ATOM_ROM_TABLE_PTR);
1265 if (strncmp
1266 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1267 strlen(ATOM_ROM_MAGIC))) {
1268 printk(KERN_INFO "Invalid ATOM magic.\n");
1269 kfree(ctx);
1270 return NULL;
1271 }
1272
1273 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1274 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1275 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1276
1277 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR));
1278 while (*str && ((*str == '\n') || (*str == '\r')))
1279 str++;
1280 /* name string isn't always 0 terminated */
1281 for (i = 0; i < 511; i++) {
1282 name[i] = str[i];
1283 if (name[i] < '.' || name[i] > 'z') {
1284 name[i] = 0;
1285 break;
1286 }
1287 }
1288 printk(KERN_INFO "ATOM BIOS: %s\n", name);
1289
1290 return ctx;
1291}
1292
1293int atom_asic_init(struct atom_context *ctx)
1294{
1295 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1296 uint32_t ps[16];
1297 memset(ps, 0, 64);
1298
1299 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1300 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1301 if (!ps[0] || !ps[1])
1302 return 1;
1303
1304 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1305 return 1;
c21b0fe6 1306 return atom_execute_table(ctx, ATOM_CMD_INIT, ps);
771fe6b9
JG		 1307}
1308
1309void atom_destroy(struct atom_context *ctx)
1310{
1311 if (ctx->iio)
1312 kfree(ctx->iio);
1313 kfree(ctx);
1314}
1315
a084e6ee 1316bool atom_parse_data_header(struct atom_context *ctx, int index,
771fe6b9
JG		 1317 uint16_t * size, uint8_t * frev, uint8_t * crev,
1318 uint16_t * data_start)
1319{
1320 int offset = index * 2 + 4;
1321 int idx = CU16(ctx->data_table + offset);
a084e6ee
AD		 1322 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1323
1324 if (!mdt[index])
1325 return false;
771fe6b9
JG		 1326
1327 if (size)
1328 *size = CU16(idx);
1329 if (frev)
1330 *frev = CU8(idx + 2);
1331 if (crev)
1332 *crev = CU8(idx + 3);
1333 *data_start = idx;
a084e6ee 1334 return true;
771fe6b9
JG		 1335}
1336
a084e6ee 1337bool atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev,
771fe6b9
JG		 1338 uint8_t * crev)
1339{
1340 int offset = index * 2 + 4;
1341 int idx = CU16(ctx->cmd_table + offset);
a084e6ee
AD		 1342 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1343
1344 if (!mct[index])
1345 return false;
771fe6b9
JG		 1346
1347 if (frev)
1348 *frev = CU8(idx + 2);
1349 if (crev)
1350 *crev = CU8(idx + 3);
a084e6ee 1351 return true;
771fe6b9 1352}
5801ead6
AD		 1353
1354int atom_allocate_fb_scratch(struct atom_context *ctx)
1355{
1356 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
1357 uint16_t data_offset;
a084e6ee 1358 int usage_bytes = 0;
5801ead6
AD		 1359 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1360
a084e6ee
AD		 1361 if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
1362 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
5801ead6 1363
a084e6ee
AD		 1364 DRM_DEBUG("atom firmware requested %08x %dkb\n",
1365 firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware,
1366 firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb);
5801ead6 1367
a084e6ee
AD		 1368 usage_bytes = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb * 1024;
1369 }
5801ead6
AD		 1370 if (usage_bytes == 0)
1371 usage_bytes = 20 * 1024;
1372 /* allocate some scratch memory */
1373 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
1374 if (!ctx->scratch)
1375 return -ENOMEM;
1376 return 0;
1377}
Linux kernel - Deliverables
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