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Merge branch 'master' of /repos/git/net-next-2.6
[net-next-2.6.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"
35
36#define ATOM_COND_ABOVE 0
37#define ATOM_COND_ABOVEOREQUAL 1
38#define ATOM_COND_ALWAYS 2
39#define ATOM_COND_BELOW 3
40#define ATOM_COND_BELOWOREQUAL 4
41#define ATOM_COND_EQUAL 5
42#define ATOM_COND_NOTEQUAL 6
43
44#define ATOM_PORT_ATI 0
45#define ATOM_PORT_PCI 1
46#define ATOM_PORT_SYSIO 2
47
48#define ATOM_UNIT_MICROSEC 0
49#define ATOM_UNIT_MILLISEC 1
50
51#define PLL_INDEX 2
52#define PLL_DATA 3
53
54typedef struct {
55 struct atom_context *ctx;
771fe6b9
JG		 56 uint32_t *ps, *ws;
57 int ps_shift;
58 uint16_t start;
c21b0fe6
JG		 59 unsigned last_jump;
60 unsigned long last_jump_jiffies;
61 bool abort;
771fe6b9
JG		 62} atom_exec_context;
63
64int atom_debug = 0;
c21b0fe6
JG		 65static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params);
66int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params);
771fe6b9
JG		 67
68static uint32_t atom_arg_mask[8] =
69 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
700xFF000000 };
71static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
72
73static int atom_dst_to_src[8][4] = {
74 /* translate destination alignment field to the source alignment encoding */
75 {0, 0, 0, 0},
76 {1, 2, 3, 0},
77 {1, 2, 3, 0},
78 {1, 2, 3, 0},
79 {4, 5, 6, 7},
80 {4, 5, 6, 7},
81 {4, 5, 6, 7},
82 {4, 5, 6, 7},
83};
84static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
85
86static int debug_depth = 0;
87#ifdef ATOM_DEBUG
88static void debug_print_spaces(int n)
89{
90 while (n--)
91 printk(" ");
92}
93
94#define DEBUG(...) do if (atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
95#define SDEBUG(...) do if (atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
96#else
97#define DEBUG(...) do { } while (0)
98#define SDEBUG(...) do { } while (0)
99#endif
100
101static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
102 uint32_t index, uint32_t data)
103{
104 uint32_t temp = 0xCDCDCDCD;
105 while (1)
106 switch (CU8(base)) {
107 case ATOM_IIO_NOP:
108 base++;
109 break;
110 case ATOM_IIO_READ:
111 temp = ctx->card->reg_read(ctx->card, CU16(base + 1));
112 base += 3;
113 break;
114 case ATOM_IIO_WRITE:
23115b05 115 (void)ctx->card->reg_read(ctx->card, CU16(base + 1));
771fe6b9
JG		 116 ctx->card->reg_write(ctx->card, CU16(base + 1), temp);
117 base += 3;
118 break;
119 case ATOM_IIO_CLEAR:
120 temp &=
121 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
122 CU8(base + 2));
123 base += 3;
124 break;
125 case ATOM_IIO_SET:
126 temp |=
127 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base +
128 2);
129 base += 3;
130 break;
131 case ATOM_IIO_MOVE_INDEX:
132 temp &=
133 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
134 CU8(base + 2));
135 temp |=
136 ((index >> CU8(base + 2)) &
137 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
138 3);
139 base += 4;
140 break;
141 case ATOM_IIO_MOVE_DATA:
142 temp &=
143 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
144 CU8(base + 2));
145 temp |=
146 ((data >> CU8(base + 2)) &
147 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
148 3);
149 base += 4;
150 break;
151 case ATOM_IIO_MOVE_ATTR:
152 temp &=
153 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
154 CU8(base + 2));
155 temp |=
156 ((ctx->
157 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 -
158 CU8
159 (base
160 +
161 1))))
162 << CU8(base + 3);
163 base += 4;
164 break;
165 case ATOM_IIO_END:
166 return temp;
167 default:
168 printk(KERN_INFO "Unknown IIO opcode.\n");
169 return 0;
170 }
171}
172
173static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
174 int *ptr, uint32_t *saved, int print)
175{
176 uint32_t idx, val = 0xCDCDCDCD, align, arg;
177 struct atom_context *gctx = ctx->ctx;
178 arg = attr & 7;
179 align = (attr >> 3) & 7;
180 switch (arg) {
181 case ATOM_ARG_REG:
182 idx = U16(*ptr);
183 (*ptr) += 2;
184 if (print)
185 DEBUG("REG[0x%04X]", idx);
186 idx += gctx->reg_block;
187 switch (gctx->io_mode) {
188 case ATOM_IO_MM:
189 val = gctx->card->reg_read(gctx->card, idx);
190 break;
191 case ATOM_IO_PCI:
192 printk(KERN_INFO
193 "PCI registers are not implemented.\n");
194 return 0;
195 case ATOM_IO_SYSIO:
196 printk(KERN_INFO
197 "SYSIO registers are not implemented.\n");
198 return 0;
199 default:
200 if (!(gctx->io_mode & 0x80)) {
201 printk(KERN_INFO "Bad IO mode.\n");
202 return 0;
203 }
204 if (!gctx->iio[gctx->io_mode & 0x7F]) {
205 printk(KERN_INFO
206 "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)++;
ce36f00d
MT		 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]);
771fe6b9
JG		 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;
e2f8e870
AD		 255 case ATOM_WS_REGPTR:
256 val = gctx->reg_block;
257 break;
771fe6b9
JG		 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)++;
d904ef9b 276 val = gctx->scratch[((gctx->fb_base + idx) / 4)];
771fe6b9
JG		 277 if (print)
278 DEBUG("FB[0x%02X]", idx);
d904ef9b 279 break;
771fe6b9
JG		 280 case ATOM_ARG_IMM:
281 switch (align) {
282 case ATOM_SRC_DWORD:
283 val = U32(*ptr);
284 (*ptr) += 4;
285 if (print)
286 DEBUG("IMM 0x%08X\n", val);
287 return val;
288 case ATOM_SRC_WORD0:
289 case ATOM_SRC_WORD8:
290 case ATOM_SRC_WORD16:
291 val = U16(*ptr);
292 (*ptr) += 2;
293 if (print)
294 DEBUG("IMM 0x%04X\n", val);
295 return val;
296 case ATOM_SRC_BYTE0:
297 case ATOM_SRC_BYTE8:
298 case ATOM_SRC_BYTE16:
299 case ATOM_SRC_BYTE24:
300 val = U8(*ptr);
301 (*ptr)++;
302 if (print)
303 DEBUG("IMM 0x%02X\n", val);
304 return val;
305 }
306 return 0;
307 case ATOM_ARG_PLL:
308 idx = U8(*ptr);
309 (*ptr)++;
310 if (print)
311 DEBUG("PLL[0x%02X]", idx);
312 val = gctx->card->pll_read(gctx->card, idx);
313 break;
314 case ATOM_ARG_MC:
315 idx = U8(*ptr);
316 (*ptr)++;
317 if (print)
318 DEBUG("MC[0x%02X]", idx);
319 val = gctx->card->mc_read(gctx->card, idx);
320 break;
321 }
322 if (saved)
323 *saved = val;
324 val &= atom_arg_mask[align];
325 val >>= atom_arg_shift[align];
326 if (print)
327 switch (align) {
328 case ATOM_SRC_DWORD:
329 DEBUG(".[31:0] -> 0x%08X\n", val);
330 break;
331 case ATOM_SRC_WORD0:
332 DEBUG(".[15:0] -> 0x%04X\n", val);
333 break;
334 case ATOM_SRC_WORD8:
335 DEBUG(".[23:8] -> 0x%04X\n", val);
336 break;
337 case ATOM_SRC_WORD16:
338 DEBUG(".[31:16] -> 0x%04X\n", val);
339 break;
340 case ATOM_SRC_BYTE0:
341 DEBUG(".[7:0] -> 0x%02X\n", val);
342 break;
343 case ATOM_SRC_BYTE8:
344 DEBUG(".[15:8] -> 0x%02X\n", val);
345 break;
346 case ATOM_SRC_BYTE16:
347 DEBUG(".[23:16] -> 0x%02X\n", val);
348 break;
349 case ATOM_SRC_BYTE24:
350 DEBUG(".[31:24] -> 0x%02X\n", val);
351 break;
352 }
353 return val;
354}
355
356static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
357{
358 uint32_t align = (attr >> 3) & 7, arg = attr & 7;
359 switch (arg) {
360 case ATOM_ARG_REG:
361 case ATOM_ARG_ID:
362 (*ptr) += 2;
363 break;
364 case ATOM_ARG_PLL:
365 case ATOM_ARG_MC:
366 case ATOM_ARG_PS:
367 case ATOM_ARG_WS:
368 case ATOM_ARG_FB:
369 (*ptr)++;
370 break;
371 case ATOM_ARG_IMM:
372 switch (align) {
373 case ATOM_SRC_DWORD:
374 (*ptr) += 4;
375 return;
376 case ATOM_SRC_WORD0:
377 case ATOM_SRC_WORD8:
378 case ATOM_SRC_WORD16:
379 (*ptr) += 2;
380 return;
381 case ATOM_SRC_BYTE0:
382 case ATOM_SRC_BYTE8:
383 case ATOM_SRC_BYTE16:
384 case ATOM_SRC_BYTE24:
385 (*ptr)++;
386 return;
387 }
388 return;
389 }
390}
391
392static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
393{
394 return atom_get_src_int(ctx, attr, ptr, NULL, 1);
395}
396
9f53e793
AD		 397static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
398{
399 uint32_t val = 0xCDCDCDCD;
400
401 switch (align) {
402 case ATOM_SRC_DWORD:
403 val = U32(*ptr);
404 (*ptr) += 4;
405 break;
406 case ATOM_SRC_WORD0:
407 case ATOM_SRC_WORD8:
408 case ATOM_SRC_WORD16:
409 val = U16(*ptr);
410 (*ptr) += 2;
411 break;
412 case ATOM_SRC_BYTE0:
413 case ATOM_SRC_BYTE8:
414 case ATOM_SRC_BYTE16:
415 case ATOM_SRC_BYTE24:
416 val = U8(*ptr);
417 (*ptr)++;
418 break;
419 }
420 return val;
421}
422
771fe6b9
JG		 423static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
424 int *ptr, uint32_t *saved, int print)
425{
426 return atom_get_src_int(ctx,
427 arg | atom_dst_to_src[(attr >> 3) &
428 7][(attr >> 6) & 3] << 3,
429 ptr, saved, print);
430}
431
432static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
433{
434 atom_skip_src_int(ctx,
435 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
436 3] << 3, ptr);
437}
438
439static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
440 int *ptr, uint32_t val, uint32_t saved)
441{
442 uint32_t align =
443 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
444 val, idx;
445 struct atom_context *gctx = ctx->ctx;
446 old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
447 val <<= atom_arg_shift[align];
448 val &= atom_arg_mask[align];
449 saved &= ~atom_arg_mask[align];
450 val |= saved;
451 switch (arg) {
452 case ATOM_ARG_REG:
453 idx = U16(*ptr);
454 (*ptr) += 2;
455 DEBUG("REG[0x%04X]", idx);
456 idx += gctx->reg_block;
457 switch (gctx->io_mode) {
458 case ATOM_IO_MM:
459 if (idx == 0)
460 gctx->card->reg_write(gctx->card, idx,
461 val << 2);
462 else
463 gctx->card->reg_write(gctx->card, idx, val);
464 break;
465 case ATOM_IO_PCI:
466 printk(KERN_INFO
467 "PCI registers are not implemented.\n");
468 return;
469 case ATOM_IO_SYSIO:
470 printk(KERN_INFO
471 "SYSIO registers are not implemented.\n");
472 return;
473 default:
474 if (!(gctx->io_mode & 0x80)) {
475 printk(KERN_INFO "Bad IO mode.\n");
476 return;
477 }
478 if (!gctx->iio[gctx->io_mode & 0xFF]) {
479 printk(KERN_INFO
480 "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;
e2f8e870
AD		 520 case ATOM_WS_REGPTR:
521 gctx->reg_block = val;
522 break;
771fe6b9
JG		 523 default:
524 ctx->ws[idx] = val;
525 }
526 break;
527 case ATOM_ARG_FB:
528 idx = U8(*ptr);
529 (*ptr)++;
d904ef9b 530 gctx->scratch[((gctx->fb_base + idx) / 4)] = val;
771fe6b9 531 DEBUG("FB[0x%02X]", idx);
d904ef9b 532 break;
771fe6b9
JG		 533 case ATOM_ARG_PLL:
534 idx = U8(*ptr);
535 (*ptr)++;
536 DEBUG("PLL[0x%02X]", idx);
537 gctx->card->pll_write(gctx->card, idx, val);
538 break;
539 case ATOM_ARG_MC:
540 idx = U8(*ptr);
541 (*ptr)++;
542 DEBUG("MC[0x%02X]", idx);
543 gctx->card->mc_write(gctx->card, idx, val);
544 return;
545 }
546 switch (align) {
547 case ATOM_SRC_DWORD:
548 DEBUG(".[31:0] <- 0x%08X\n", old_val);
549 break;
550 case ATOM_SRC_WORD0:
551 DEBUG(".[15:0] <- 0x%04X\n", old_val);
552 break;
553 case ATOM_SRC_WORD8:
554 DEBUG(".[23:8] <- 0x%04X\n", old_val);
555 break;
556 case ATOM_SRC_WORD16:
557 DEBUG(".[31:16] <- 0x%04X\n", old_val);
558 break;
559 case ATOM_SRC_BYTE0:
560 DEBUG(".[7:0] <- 0x%02X\n", old_val);
561 break;
562 case ATOM_SRC_BYTE8:
563 DEBUG(".[15:8] <- 0x%02X\n", old_val);
564 break;
565 case ATOM_SRC_BYTE16:
566 DEBUG(".[23:16] <- 0x%02X\n", old_val);
567 break;
568 case ATOM_SRC_BYTE24:
569 DEBUG(".[31:24] <- 0x%02X\n", old_val);
570 break;
571 }
572}
573
574static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
575{
576 uint8_t attr = U8((*ptr)++);
577 uint32_t dst, src, saved;
578 int dptr = *ptr;
579 SDEBUG(" dst: ");
580 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
581 SDEBUG(" src: ");
582 src = atom_get_src(ctx, attr, ptr);
583 dst += src;
584 SDEBUG(" dst: ");
585 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
586}
587
588static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
589{
590 uint8_t attr = U8((*ptr)++);
591 uint32_t dst, src, saved;
592 int dptr = *ptr;
593 SDEBUG(" dst: ");
594 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
595 SDEBUG(" src: ");
596 src = atom_get_src(ctx, attr, ptr);
597 dst &= src;
598 SDEBUG(" dst: ");
599 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
600}
601
602static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
603{
604 printk("ATOM BIOS beeped!\n");
605}
606
607static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
608{
609 int idx = U8((*ptr)++);
c21b0fe6
JG		 610 int r = 0;
611
771fe6b9
JG		 612 if (idx < ATOM_TABLE_NAMES_CNT)
613 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]);
614 else
615 SDEBUG(" table: %d\n", idx);
616 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
c21b0fe6
JG		 617 r = atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift);
618 if (r) {
619 ctx->abort = true;
620 }
771fe6b9
JG		 621}
622
623static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
624{
625 uint8_t attr = U8((*ptr)++);
626 uint32_t saved;
627 int dptr = *ptr;
628 attr &= 0x38;
629 attr |= atom_def_dst[attr >> 3] << 6;
630 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
631 SDEBUG(" dst: ");
632 atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
633}
634
635static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
636{
637 uint8_t attr = U8((*ptr)++);
638 uint32_t dst, src;
639 SDEBUG(" src1: ");
640 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
641 SDEBUG(" src2: ");
642 src = atom_get_src(ctx, attr, ptr);
643 ctx->ctx->cs_equal = (dst == src);
644 ctx->ctx->cs_above = (dst > src);
645 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
646 ctx->ctx->cs_above ? "GT" : "LE");
647}
648
649static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
650{
651 uint8_t count = U8((*ptr)++);
652 SDEBUG(" count: %d\n", count);
653 if (arg == ATOM_UNIT_MICROSEC)
01d45039 654 udelay(count);
771fe6b9
JG		 655 else
656 schedule_timeout_uninterruptible(msecs_to_jiffies(count));
657}
658
659static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
660{
661 uint8_t attr = U8((*ptr)++);
662 uint32_t dst, src;
663 SDEBUG(" src1: ");
664 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
665 SDEBUG(" src2: ");
666 src = atom_get_src(ctx, attr, ptr);
667 if (src != 0) {
668 ctx->ctx->divmul[0] = dst / src;
669 ctx->ctx->divmul[1] = dst % src;
670 } else {
671 ctx->ctx->divmul[0] = 0;
672 ctx->ctx->divmul[1] = 0;
673 }
674}
675
676static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
677{
678 /* functionally, a nop */
679}
680
681static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
682{
683 int execute = 0, target = U16(*ptr);
c21b0fe6
JG		 684 unsigned long cjiffies;
685
771fe6b9
JG		 686 (*ptr) += 2;
687 switch (arg) {
688 case ATOM_COND_ABOVE:
689 execute = ctx->ctx->cs_above;
690 break;
691 case ATOM_COND_ABOVEOREQUAL:
692 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
693 break;
694 case ATOM_COND_ALWAYS:
695 execute = 1;
696 break;
697 case ATOM_COND_BELOW:
698 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
699 break;
700 case ATOM_COND_BELOWOREQUAL:
701 execute = !ctx->ctx->cs_above;
702 break;
703 case ATOM_COND_EQUAL:
704 execute = ctx->ctx->cs_equal;
705 break;
706 case ATOM_COND_NOTEQUAL:
707 execute = !ctx->ctx->cs_equal;
708 break;
709 }
710 if (arg != ATOM_COND_ALWAYS)
711 SDEBUG(" taken: %s\n", execute ? "yes" : "no");
712 SDEBUG(" target: 0x%04X\n", target);
c21b0fe6
JG		 713 if (execute) {
714 if (ctx->last_jump == (ctx->start + target)) {
715 cjiffies = jiffies;
716 if (time_after(cjiffies, ctx->last_jump_jiffies)) {
717 cjiffies -= ctx->last_jump_jiffies;
718 if ((jiffies_to_msecs(cjiffies) > 1000)) {
719 DRM_ERROR("atombios stuck in loop for more than 1sec aborting\n");
720 ctx->abort = true;
721 }
722 } else {
723 /* jiffies wrap around we will just wait a little longer */
724 ctx->last_jump_jiffies = jiffies;
725 }
726 } else {
727 ctx->last_jump = ctx->start + target;
728 ctx->last_jump_jiffies = jiffies;
729 }
771fe6b9 730 *ptr = ctx->start + target;
c21b0fe6 731 }
771fe6b9
JG		 732}
733
734static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
735{
736 uint8_t attr = U8((*ptr)++);
737 uint32_t dst, src1, src2, saved;
738 int dptr = *ptr;
739 SDEBUG(" dst: ");
740 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
741 SDEBUG(" src1: ");
9f53e793 742 src1 = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
771fe6b9 743 SDEBUG(" src2: ");
e2f8e870 744 src2 = atom_get_src(ctx, attr, ptr);
771fe6b9
JG		 745 dst &= src1;
746 dst |= src2;
747 SDEBUG(" dst: ");
748 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
749}
750
751static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
752{
753 uint8_t attr = U8((*ptr)++);
754 uint32_t src, saved;
755 int dptr = *ptr;
756 if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
757 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
758 else {
759 atom_skip_dst(ctx, arg, attr, ptr);
760 saved = 0xCDCDCDCD;
761 }
762 SDEBUG(" src: ");
763 src = atom_get_src(ctx, attr, ptr);
764 SDEBUG(" dst: ");
765 atom_put_dst(ctx, arg, attr, &dptr, src, saved);
766}
767
768static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
769{
770 uint8_t attr = U8((*ptr)++);
771 uint32_t dst, src;
772 SDEBUG(" src1: ");
773 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
774 SDEBUG(" src2: ");
775 src = atom_get_src(ctx, attr, ptr);
776 ctx->ctx->divmul[0] = dst * src;
777}
778
779static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
780{
781 /* nothing */
782}
783
784static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
785{
786 uint8_t attr = U8((*ptr)++);
787 uint32_t dst, src, saved;
788 int dptr = *ptr;
789 SDEBUG(" dst: ");
790 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
791 SDEBUG(" src: ");
792 src = atom_get_src(ctx, attr, ptr);
793 dst |= src;
794 SDEBUG(" dst: ");
795 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
796}
797
798static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
799{
800 uint8_t val = U8((*ptr)++);
801 SDEBUG("POST card output: 0x%02X\n", val);
802}
803
804static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
805{
806 printk(KERN_INFO "unimplemented!\n");
807}
808
809static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
810{
811 printk(KERN_INFO "unimplemented!\n");
812}
813
814static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
815{
816 printk(KERN_INFO "unimplemented!\n");
817}
818
819static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
820{
821 int idx = U8(*ptr);
822 (*ptr)++;
823 SDEBUG(" block: %d\n", idx);
824 if (!idx)
825 ctx->ctx->data_block = 0;
826 else if (idx == 255)
827 ctx->ctx->data_block = ctx->start;
828 else
829 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
830 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block);
831}
832
833static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
834{
835 uint8_t attr = U8((*ptr)++);
836 SDEBUG(" fb_base: ");
837 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
838}
839
840static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
841{
842 int port;
843 switch (arg) {
844 case ATOM_PORT_ATI:
845 port = U16(*ptr);
846 if (port < ATOM_IO_NAMES_CNT)
847 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]);
848 else
849 SDEBUG(" port: %d\n", port);
850 if (!port)
851 ctx->ctx->io_mode = ATOM_IO_MM;
852 else
853 ctx->ctx->io_mode = ATOM_IO_IIO | port;
854 (*ptr) += 2;
855 break;
856 case ATOM_PORT_PCI:
857 ctx->ctx->io_mode = ATOM_IO_PCI;
858 (*ptr)++;
859 break;
860 case ATOM_PORT_SYSIO:
861 ctx->ctx->io_mode = ATOM_IO_SYSIO;
862 (*ptr)++;
863 break;
864 }
865}
866
867static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
868{
869 ctx->ctx->reg_block = U16(*ptr);
870 (*ptr) += 2;
871 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block);
872}
873
9f53e793
AD		 874static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
875{
876 uint8_t attr = U8((*ptr)++), shift;
877 uint32_t saved, dst;
878 int dptr = *ptr;
879 attr &= 0x38;
880 attr |= atom_def_dst[attr >> 3] << 6;
881 SDEBUG(" dst: ");
882 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
883 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
884 SDEBUG(" shift: %d\n", shift);
885 dst <<= shift;
886 SDEBUG(" dst: ");
887 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
888}
889
890static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
891{
892 uint8_t attr = U8((*ptr)++), shift;
893 uint32_t saved, dst;
894 int dptr = *ptr;
895 attr &= 0x38;
896 attr |= atom_def_dst[attr >> 3] << 6;
897 SDEBUG(" dst: ");
898 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
899 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
900 SDEBUG(" shift: %d\n", shift);
901 dst >>= shift;
902 SDEBUG(" dst: ");
903 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
904}
905
771fe6b9
JG		 906static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
907{
908 uint8_t attr = U8((*ptr)++), shift;
909 uint32_t saved, dst;
910 int dptr = *ptr;
65384a1d 911 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
771fe6b9
JG		 912 SDEBUG(" dst: ");
913 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
65384a1d
AD		 914 /* op needs to full dst value */
915 dst = saved;
9f53e793 916 shift = atom_get_src(ctx, attr, ptr);
771fe6b9
JG		 917 SDEBUG(" shift: %d\n", shift);
918 dst <<= shift;
65384a1d
AD		 919 dst &= atom_arg_mask[dst_align];
920 dst >>= atom_arg_shift[dst_align];
771fe6b9
JG		 921 SDEBUG(" dst: ");
922 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
923}
924
925static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
926{
927 uint8_t attr = U8((*ptr)++), shift;
928 uint32_t saved, dst;
929 int dptr = *ptr;
65384a1d 930 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
771fe6b9
JG		 931 SDEBUG(" dst: ");
932 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
65384a1d
AD		 933 /* op needs to full dst value */
934 dst = saved;
9f53e793 935 shift = atom_get_src(ctx, attr, ptr);
771fe6b9
JG		 936 SDEBUG(" shift: %d\n", shift);
937 dst >>= shift;
65384a1d
AD		 938 dst &= atom_arg_mask[dst_align];
939 dst >>= atom_arg_shift[dst_align];
771fe6b9
JG		 940 SDEBUG(" dst: ");
941 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
942}
943
944static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
945{
946 uint8_t attr = U8((*ptr)++);
947 uint32_t dst, src, saved;
948 int dptr = *ptr;
949 SDEBUG(" dst: ");
950 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
951 SDEBUG(" src: ");
952 src = atom_get_src(ctx, attr, ptr);
953 dst -= src;
954 SDEBUG(" dst: ");
955 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
956}
957
958static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
959{
960 uint8_t attr = U8((*ptr)++);
961 uint32_t src, val, target;
962 SDEBUG(" switch: ");
963 src = atom_get_src(ctx, attr, ptr);
964 while (U16(*ptr) != ATOM_CASE_END)
965 if (U8(*ptr) == ATOM_CASE_MAGIC) {
966 (*ptr)++;
967 SDEBUG(" case: ");
968 val =
969 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
970 ptr);
971 target = U16(*ptr);
972 if (val == src) {
973 SDEBUG(" target: %04X\n", target);
974 *ptr = ctx->start + target;
975 return;
976 }
977 (*ptr) += 2;
978 } else {
979 printk(KERN_INFO "Bad case.\n");
980 return;
981 }
982 (*ptr) += 2;
983}
984
985static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
986{
987 uint8_t attr = U8((*ptr)++);
988 uint32_t dst, src;
989 SDEBUG(" src1: ");
990 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
991 SDEBUG(" src2: ");
992 src = atom_get_src(ctx, attr, ptr);
993 ctx->ctx->cs_equal = ((dst & src) == 0);
994 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
995}
996
997static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
998{
999 uint8_t attr = U8((*ptr)++);
1000 uint32_t dst, src, saved;
1001 int dptr = *ptr;
1002 SDEBUG(" dst: ");
1003 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1004 SDEBUG(" src: ");
1005 src = atom_get_src(ctx, attr, ptr);
1006 dst ^= src;
1007 SDEBUG(" dst: ");
1008 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1009}
1010
1011static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1012{
1013 printk(KERN_INFO "unimplemented!\n");
1014}
1015
1016static struct {
1017 void (*func) (atom_exec_context *, int *, int);
1018 int arg;
1019} opcode_table[ATOM_OP_CNT] = {
1020 {
1021 NULL, 0}, {
1022 atom_op_move, ATOM_ARG_REG}, {
1023 atom_op_move, ATOM_ARG_PS}, {
1024 atom_op_move, ATOM_ARG_WS}, {
1025 atom_op_move, ATOM_ARG_FB}, {
1026 atom_op_move, ATOM_ARG_PLL}, {
1027 atom_op_move, ATOM_ARG_MC}, {
1028 atom_op_and, ATOM_ARG_REG}, {
1029 atom_op_and, ATOM_ARG_PS}, {
1030 atom_op_and, ATOM_ARG_WS}, {
1031 atom_op_and, ATOM_ARG_FB}, {
1032 atom_op_and, ATOM_ARG_PLL}, {
1033 atom_op_and, ATOM_ARG_MC}, {
1034 atom_op_or, ATOM_ARG_REG}, {
1035 atom_op_or, ATOM_ARG_PS}, {
1036 atom_op_or, ATOM_ARG_WS}, {
1037 atom_op_or, ATOM_ARG_FB}, {
1038 atom_op_or, ATOM_ARG_PLL}, {
1039 atom_op_or, ATOM_ARG_MC}, {
9f53e793
AD		 1040 atom_op_shift_left, ATOM_ARG_REG}, {
1041 atom_op_shift_left, ATOM_ARG_PS}, {
1042 atom_op_shift_left, ATOM_ARG_WS}, {
1043 atom_op_shift_left, ATOM_ARG_FB}, {
1044 atom_op_shift_left, ATOM_ARG_PLL}, {
1045 atom_op_shift_left, ATOM_ARG_MC}, {
1046 atom_op_shift_right, ATOM_ARG_REG}, {
1047 atom_op_shift_right, ATOM_ARG_PS}, {
1048 atom_op_shift_right, ATOM_ARG_WS}, {
1049 atom_op_shift_right, ATOM_ARG_FB}, {
1050 atom_op_shift_right, ATOM_ARG_PLL}, {
1051 atom_op_shift_right, ATOM_ARG_MC}, {
771fe6b9
JG		 1052 atom_op_mul, ATOM_ARG_REG}, {
1053 atom_op_mul, ATOM_ARG_PS}, {
1054 atom_op_mul, ATOM_ARG_WS}, {
1055 atom_op_mul, ATOM_ARG_FB}, {
1056 atom_op_mul, ATOM_ARG_PLL}, {
1057 atom_op_mul, ATOM_ARG_MC}, {
1058 atom_op_div, ATOM_ARG_REG}, {
1059 atom_op_div, ATOM_ARG_PS}, {
1060 atom_op_div, ATOM_ARG_WS}, {
1061 atom_op_div, ATOM_ARG_FB}, {
1062 atom_op_div, ATOM_ARG_PLL}, {
1063 atom_op_div, ATOM_ARG_MC}, {
1064 atom_op_add, ATOM_ARG_REG}, {
1065 atom_op_add, ATOM_ARG_PS}, {
1066 atom_op_add, ATOM_ARG_WS}, {
1067 atom_op_add, ATOM_ARG_FB}, {
1068 atom_op_add, ATOM_ARG_PLL}, {
1069 atom_op_add, ATOM_ARG_MC}, {
1070 atom_op_sub, ATOM_ARG_REG}, {
1071 atom_op_sub, ATOM_ARG_PS}, {
1072 atom_op_sub, ATOM_ARG_WS}, {
1073 atom_op_sub, ATOM_ARG_FB}, {
1074 atom_op_sub, ATOM_ARG_PLL}, {
1075 atom_op_sub, ATOM_ARG_MC}, {
1076 atom_op_setport, ATOM_PORT_ATI}, {
1077 atom_op_setport, ATOM_PORT_PCI}, {
1078 atom_op_setport, ATOM_PORT_SYSIO}, {
1079 atom_op_setregblock, 0}, {
1080 atom_op_setfbbase, 0}, {
1081 atom_op_compare, ATOM_ARG_REG}, {
1082 atom_op_compare, ATOM_ARG_PS}, {
1083 atom_op_compare, ATOM_ARG_WS}, {
1084 atom_op_compare, ATOM_ARG_FB}, {
1085 atom_op_compare, ATOM_ARG_PLL}, {
1086 atom_op_compare, ATOM_ARG_MC}, {
1087 atom_op_switch, 0}, {
1088 atom_op_jump, ATOM_COND_ALWAYS}, {
1089 atom_op_jump, ATOM_COND_EQUAL}, {
1090 atom_op_jump, ATOM_COND_BELOW}, {
1091 atom_op_jump, ATOM_COND_ABOVE}, {
1092 atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1093 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1094 atom_op_jump, ATOM_COND_NOTEQUAL}, {
1095 atom_op_test, ATOM_ARG_REG}, {
1096 atom_op_test, ATOM_ARG_PS}, {
1097 atom_op_test, ATOM_ARG_WS}, {
1098 atom_op_test, ATOM_ARG_FB}, {
1099 atom_op_test, ATOM_ARG_PLL}, {
1100 atom_op_test, ATOM_ARG_MC}, {
1101 atom_op_delay, ATOM_UNIT_MILLISEC}, {
1102 atom_op_delay, ATOM_UNIT_MICROSEC}, {
1103 atom_op_calltable, 0}, {
1104 atom_op_repeat, 0}, {
1105 atom_op_clear, ATOM_ARG_REG}, {
1106 atom_op_clear, ATOM_ARG_PS}, {
1107 atom_op_clear, ATOM_ARG_WS}, {
1108 atom_op_clear, ATOM_ARG_FB}, {
1109 atom_op_clear, ATOM_ARG_PLL}, {
1110 atom_op_clear, ATOM_ARG_MC}, {
1111 atom_op_nop, 0}, {
1112 atom_op_eot, 0}, {
1113 atom_op_mask, ATOM_ARG_REG}, {
1114 atom_op_mask, ATOM_ARG_PS}, {
1115 atom_op_mask, ATOM_ARG_WS}, {
1116 atom_op_mask, ATOM_ARG_FB}, {
1117 atom_op_mask, ATOM_ARG_PLL}, {
1118 atom_op_mask, ATOM_ARG_MC}, {
1119 atom_op_postcard, 0}, {
1120 atom_op_beep, 0}, {
1121 atom_op_savereg, 0}, {
1122 atom_op_restorereg, 0}, {
1123 atom_op_setdatablock, 0}, {
1124 atom_op_xor, ATOM_ARG_REG}, {
1125 atom_op_xor, ATOM_ARG_PS}, {
1126 atom_op_xor, ATOM_ARG_WS}, {
1127 atom_op_xor, ATOM_ARG_FB}, {
1128 atom_op_xor, ATOM_ARG_PLL}, {
1129 atom_op_xor, ATOM_ARG_MC}, {
1130 atom_op_shl, ATOM_ARG_REG}, {
1131 atom_op_shl, ATOM_ARG_PS}, {
1132 atom_op_shl, ATOM_ARG_WS}, {
1133 atom_op_shl, ATOM_ARG_FB}, {
1134 atom_op_shl, ATOM_ARG_PLL}, {
1135 atom_op_shl, ATOM_ARG_MC}, {
1136 atom_op_shr, ATOM_ARG_REG}, {
1137 atom_op_shr, ATOM_ARG_PS}, {
1138 atom_op_shr, ATOM_ARG_WS}, {
1139 atom_op_shr, ATOM_ARG_FB}, {
1140 atom_op_shr, ATOM_ARG_PLL}, {
1141 atom_op_shr, ATOM_ARG_MC}, {
1142atom_op_debug, 0},};
1143
c21b0fe6 1144static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params)
771fe6b9
JG		 1145{
1146 int base = CU16(ctx->cmd_table + 4 + 2 * index);
1147 int len, ws, ps, ptr;
1148 unsigned char op;
1149 atom_exec_context ectx;
01a356fd 1150 int ret = 0;
771fe6b9
JG		 1151
1152 if (!base)
c21b0fe6 1153 return -EINVAL;
771fe6b9
JG		 1154
1155 len = CU16(base + ATOM_CT_SIZE_PTR);
1156 ws = CU8(base + ATOM_CT_WS_PTR);
1157 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1158 ptr = base + ATOM_CT_CODE_PTR;
1159
1160 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1161
771fe6b9
JG		 1162 ectx.ctx = ctx;
1163 ectx.ps_shift = ps / 4;
1164 ectx.start = base;
1165 ectx.ps = params;
c21b0fe6
JG		 1166 ectx.abort = false;
1167 ectx.last_jump = 0;
771fe6b9
JG		 1168 if (ws)
1169 ectx.ws = kzalloc(4 * ws, GFP_KERNEL);
1170 else
1171 ectx.ws = NULL;
1172
1173 debug_depth++;
1174 while (1) {
1175 op = CU8(ptr++);
1176 if (op < ATOM_OP_NAMES_CNT)
1177 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1178 else
1179 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
c21b0fe6
JG		 1180 if (ectx.abort) {
1181 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1182 base, len, ws, ps, ptr - 1);
01a356fd
DC		 1183 ret = -EINVAL;
1184 goto free;
c21b0fe6 1185 }
771fe6b9
JG		 1186
1187 if (op < ATOM_OP_CNT && op > 0)
1188 opcode_table[op].func(&ectx, &ptr,
1189 opcode_table[op].arg);
1190 else
1191 break;
1192
1193 if (op == ATOM_OP_EOT)
1194 break;
1195 }
1196 debug_depth--;
1197 SDEBUG("<<\n");
1198
01a356fd 1199free:
771fe6b9
JG		 1200 if (ws)
1201 kfree(ectx.ws);
01a356fd 1202 return ret;
771fe6b9
JG		 1203}
1204
c21b0fe6 1205int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
c31ad97f 1206{
c21b0fe6
JG		 1207 int r;
1208
c31ad97f 1209 mutex_lock(&ctx->mutex);
947bfc83
AD		 1210 /* reset reg block */
1211 ctx->reg_block = 0;
1212 /* reset fb window */
1213 ctx->fb_base = 0;
1214 /* reset io mode */
1215 ctx->io_mode = ATOM_IO_MM;
c21b0fe6 1216 r = atom_execute_table_locked(ctx, index, params);
c31ad97f 1217 mutex_unlock(&ctx->mutex);
c21b0fe6 1218 return r;
c31ad97f
RM		 1219}
1220
771fe6b9
JG		 1221static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1222
1223static void atom_index_iio(struct atom_context *ctx, int base)
1224{
1225 ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1226 while (CU8(base) == ATOM_IIO_START) {
1227 ctx->iio[CU8(base + 1)] = base + 2;
1228 base += 2;
1229 while (CU8(base) != ATOM_IIO_END)
1230 base += atom_iio_len[CU8(base)];
1231 base += 3;
1232 }
1233}
1234
1235struct atom_context *atom_parse(struct card_info *card, void *bios)
1236{
1237 int base;
1238 struct atom_context *ctx =
1239 kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1240 char *str;
1241 char name[512];
1242 int i;
1243
1244 ctx->card = card;
1245 ctx->bios = bios;
1246
1247 if (CU16(0) != ATOM_BIOS_MAGIC) {
1248 printk(KERN_INFO "Invalid BIOS magic.\n");
1249 kfree(ctx);
1250 return NULL;
1251 }
1252 if (strncmp
1253 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1254 strlen(ATOM_ATI_MAGIC))) {
1255 printk(KERN_INFO "Invalid ATI magic.\n");
1256 kfree(ctx);
1257 return NULL;
1258 }
1259
1260 base = CU16(ATOM_ROM_TABLE_PTR);
1261 if (strncmp
1262 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1263 strlen(ATOM_ROM_MAGIC))) {
1264 printk(KERN_INFO "Invalid ATOM magic.\n");
1265 kfree(ctx);
1266 return NULL;
1267 }
1268
1269 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1270 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1271 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1272
1273 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR));
1274 while (*str && ((*str == '\n') || (*str == '\r')))
1275 str++;
1276 /* name string isn't always 0 terminated */
1277 for (i = 0; i < 511; i++) {
1278 name[i] = str[i];
1279 if (name[i] < '.' || name[i] > 'z') {
1280 name[i] = 0;
1281 break;
1282 }
1283 }
1284 printk(KERN_INFO "ATOM BIOS: %s\n", name);
1285
1286 return ctx;
1287}
1288
1289int atom_asic_init(struct atom_context *ctx)
1290{
1291 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1292 uint32_t ps[16];
1293 memset(ps, 0, 64);
1294
1295 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1296 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1297 if (!ps[0] || !ps[1])
1298 return 1;
1299
1300 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1301 return 1;
c21b0fe6 1302 return atom_execute_table(ctx, ATOM_CMD_INIT, ps);
771fe6b9
JG		 1303}
1304
1305void atom_destroy(struct atom_context *ctx)
1306{
1307 if (ctx->iio)
1308 kfree(ctx->iio);
1309 kfree(ctx);
1310}
1311
a084e6ee 1312bool atom_parse_data_header(struct atom_context *ctx, int index,
771fe6b9
JG		 1313 uint16_t * size, uint8_t * frev, uint8_t * crev,
1314 uint16_t * data_start)
1315{
1316 int offset = index * 2 + 4;
1317 int idx = CU16(ctx->data_table + offset);
a084e6ee
AD		 1318 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1319
1320 if (!mdt[index])
1321 return false;
771fe6b9
JG		 1322
1323 if (size)
1324 *size = CU16(idx);
1325 if (frev)
1326 *frev = CU8(idx + 2);
1327 if (crev)
1328 *crev = CU8(idx + 3);
1329 *data_start = idx;
a084e6ee 1330 return true;
771fe6b9
JG		 1331}
1332
a084e6ee 1333bool atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev,
771fe6b9
JG		 1334 uint8_t * crev)
1335{
1336 int offset = index * 2 + 4;
1337 int idx = CU16(ctx->cmd_table + offset);
a084e6ee
AD		 1338 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1339
1340 if (!mct[index])
1341 return false;
771fe6b9
JG		 1342
1343 if (frev)
1344 *frev = CU8(idx + 2);
1345 if (crev)
1346 *crev = CU8(idx + 3);
a084e6ee 1347 return true;
771fe6b9 1348}
5801ead6
AD		 1349
1350int atom_allocate_fb_scratch(struct atom_context *ctx)
1351{
1352 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
1353 uint16_t data_offset;
a084e6ee 1354 int usage_bytes = 0;
5801ead6
AD		 1355 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1356
a084e6ee
AD		 1357 if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
1358 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
5801ead6 1359
a084e6ee
AD		 1360 DRM_DEBUG("atom firmware requested %08x %dkb\n",
1361 firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware,
1362 firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb);
5801ead6 1363
a084e6ee
AD		 1364 usage_bytes = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb * 1024;
1365 }
5801ead6
AD		 1366 if (usage_bytes == 0)
1367 usage_bytes = 20 * 1024;
1368 /* allocate some scratch memory */
1369 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
1370 if (!ctx->scratch)
1371 return -ENOMEM;
1372 return 0;
1373}
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