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 "radeon.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 atom_debug = 0;
66 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params);
67 int 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
debug_print_spaces(int n)89 static 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
atom_iio_execute(struct atom_context * ctx,int base,uint32_t index,uint32_t data)102 static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
103 uint32_t index, uint32_t data)
104 {
105 struct radeon_device *rdev = ctx->card->dev->dev_private;
106 uint32_t temp = 0xCDCDCDCD;
107
108 while (1)
109 switch (CU8(base)) {
110 case ATOM_IIO_NOP:
111 base++;
112 break;
113 case ATOM_IIO_READ:
114 temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1));
115 base += 3;
116 break;
117 case ATOM_IIO_WRITE:
118 if (rdev->family == CHIP_RV515)
119 (void)ctx->card->ioreg_read(ctx->card, CU16(base + 1));
120 ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp);
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 + 3));
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 + 3));
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 + 3));
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
atom_get_src_int(atom_exec_context * ctx,uint8_t attr,int * ptr,uint32_t * saved,int print)177 static 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)++;
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]);
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;
259 case ATOM_WS_REGPTR:
260 val = gctx->reg_block;
261 break;
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)++;
280 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
281 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n",
282 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
283 val = 0;
284 } else
285 val = gctx->scratch[(gctx->fb_base / 4) + idx];
286 if (print)
287 DEBUG("FB[0x%02X]", idx);
288 break;
289 case ATOM_ARG_IMM:
290 switch (align) {
291 case ATOM_SRC_DWORD:
292 val = U32(*ptr);
293 (*ptr) += 4;
294 if (print)
295 DEBUG("IMM 0x%08X\n", val);
296 return val;
297 case ATOM_SRC_WORD0:
298 case ATOM_SRC_WORD8:
299 case ATOM_SRC_WORD16:
300 val = U16(*ptr);
301 (*ptr) += 2;
302 if (print)
303 DEBUG("IMM 0x%04X\n", val);
304 return val;
305 case ATOM_SRC_BYTE0:
306 case ATOM_SRC_BYTE8:
307 case ATOM_SRC_BYTE16:
308 case ATOM_SRC_BYTE24:
309 val = U8(*ptr);
310 (*ptr)++;
311 if (print)
312 DEBUG("IMM 0x%02X\n", val);
313 return val;
314 }
315 return 0;
316 case ATOM_ARG_PLL:
317 idx = U8(*ptr);
318 (*ptr)++;
319 if (print)
320 DEBUG("PLL[0x%02X]", idx);
321 val = gctx->card->pll_read(gctx->card, idx);
322 break;
323 case ATOM_ARG_MC:
324 idx = U8(*ptr);
325 (*ptr)++;
326 if (print)
327 DEBUG("MC[0x%02X]", idx);
328 val = gctx->card->mc_read(gctx->card, idx);
329 break;
330 }
331 if (saved)
332 *saved = val;
333 val &= atom_arg_mask[align];
334 val >>= atom_arg_shift[align];
335 if (print)
336 switch (align) {
337 case ATOM_SRC_DWORD:
338 DEBUG(".[31:0] -> 0x%08X\n", val);
339 break;
340 case ATOM_SRC_WORD0:
341 DEBUG(".[15:0] -> 0x%04X\n", val);
342 break;
343 case ATOM_SRC_WORD8:
344 DEBUG(".[23:8] -> 0x%04X\n", val);
345 break;
346 case ATOM_SRC_WORD16:
347 DEBUG(".[31:16] -> 0x%04X\n", val);
348 break;
349 case ATOM_SRC_BYTE0:
350 DEBUG(".[7:0] -> 0x%02X\n", val);
351 break;
352 case ATOM_SRC_BYTE8:
353 DEBUG(".[15:8] -> 0x%02X\n", val);
354 break;
355 case ATOM_SRC_BYTE16:
356 DEBUG(".[23:16] -> 0x%02X\n", val);
357 break;
358 case ATOM_SRC_BYTE24:
359 DEBUG(".[31:24] -> 0x%02X\n", val);
360 break;
361 }
362 return val;
363 }
364
atom_skip_src_int(atom_exec_context * ctx,uint8_t attr,int * ptr)365 static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
366 {
367 uint32_t align = (attr >> 3) & 7, arg = attr & 7;
368 switch (arg) {
369 case ATOM_ARG_REG:
370 case ATOM_ARG_ID:
371 (*ptr) += 2;
372 break;
373 case ATOM_ARG_PLL:
374 case ATOM_ARG_MC:
375 case ATOM_ARG_PS:
376 case ATOM_ARG_WS:
377 case ATOM_ARG_FB:
378 (*ptr)++;
379 break;
380 case ATOM_ARG_IMM:
381 switch (align) {
382 case ATOM_SRC_DWORD:
383 (*ptr) += 4;
384 return;
385 case ATOM_SRC_WORD0:
386 case ATOM_SRC_WORD8:
387 case ATOM_SRC_WORD16:
388 (*ptr) += 2;
389 return;
390 case ATOM_SRC_BYTE0:
391 case ATOM_SRC_BYTE8:
392 case ATOM_SRC_BYTE16:
393 case ATOM_SRC_BYTE24:
394 (*ptr)++;
395 return;
396 }
397 return;
398 }
399 }
400
atom_get_src(atom_exec_context * ctx,uint8_t attr,int * ptr)401 static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
402 {
403 return atom_get_src_int(ctx, attr, ptr, NULL, 1);
404 }
405
atom_get_src_direct(atom_exec_context * ctx,uint8_t align,int * ptr)406 static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
407 {
408 uint32_t val = 0xCDCDCDCD;
409
410 switch (align) {
411 case ATOM_SRC_DWORD:
412 val = U32(*ptr);
413 (*ptr) += 4;
414 break;
415 case ATOM_SRC_WORD0:
416 case ATOM_SRC_WORD8:
417 case ATOM_SRC_WORD16:
418 val = U16(*ptr);
419 (*ptr) += 2;
420 break;
421 case ATOM_SRC_BYTE0:
422 case ATOM_SRC_BYTE8:
423 case ATOM_SRC_BYTE16:
424 case ATOM_SRC_BYTE24:
425 val = U8(*ptr);
426 (*ptr)++;
427 break;
428 }
429 return val;
430 }
431
atom_get_dst(atom_exec_context * ctx,int arg,uint8_t attr,int * ptr,uint32_t * saved,int print)432 static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
433 int *ptr, uint32_t *saved, int print)
434 {
435 return atom_get_src_int(ctx,
436 arg | atom_dst_to_src[(attr >> 3) &
437 7][(attr >> 6) & 3] << 3,
438 ptr, saved, print);
439 }
440
atom_skip_dst(atom_exec_context * ctx,int arg,uint8_t attr,int * ptr)441 static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
442 {
443 atom_skip_src_int(ctx,
444 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
445 3] << 3, ptr);
446 }
447
atom_put_dst(atom_exec_context * ctx,int arg,uint8_t attr,int * ptr,uint32_t val,uint32_t saved)448 static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
449 int *ptr, uint32_t val, uint32_t saved)
450 {
451 uint32_t align =
452 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
453 val, idx;
454 struct atom_context *gctx = ctx->ctx;
455 old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
456 val <<= atom_arg_shift[align];
457 val &= atom_arg_mask[align];
458 saved &= ~atom_arg_mask[align];
459 val |= saved;
460 switch (arg) {
461 case ATOM_ARG_REG:
462 idx = U16(*ptr);
463 (*ptr) += 2;
464 DEBUG("REG[0x%04X]", idx);
465 idx += gctx->reg_block;
466 switch (gctx->io_mode) {
467 case ATOM_IO_MM:
468 if (idx == 0)
469 gctx->card->reg_write(gctx->card, idx,
470 val << 2);
471 else
472 gctx->card->reg_write(gctx->card, idx, val);
473 break;
474 case ATOM_IO_PCI:
475 printk(KERN_INFO
476 "PCI registers are not implemented.\n");
477 return;
478 case ATOM_IO_SYSIO:
479 printk(KERN_INFO
480 "SYSIO registers are not implemented.\n");
481 return;
482 default:
483 if (!(gctx->io_mode & 0x80)) {
484 printk(KERN_INFO "Bad IO mode.\n");
485 return;
486 }
487 if (!gctx->iio[gctx->io_mode & 0xFF]) {
488 printk(KERN_INFO
489 "Undefined indirect IO write method %d.\n",
490 gctx->io_mode & 0x7F);
491 return;
492 }
493 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
494 idx, val);
495 }
496 break;
497 case ATOM_ARG_PS:
498 idx = U8(*ptr);
499 (*ptr)++;
500 DEBUG("PS[0x%02X]", idx);
501 ctx->ps[idx] = cpu_to_le32(val);
502 break;
503 case ATOM_ARG_WS:
504 idx = U8(*ptr);
505 (*ptr)++;
506 DEBUG("WS[0x%02X]", idx);
507 switch (idx) {
508 case ATOM_WS_QUOTIENT:
509 gctx->divmul[0] = val;
510 break;
511 case ATOM_WS_REMAINDER:
512 gctx->divmul[1] = val;
513 break;
514 case ATOM_WS_DATAPTR:
515 gctx->data_block = val;
516 break;
517 case ATOM_WS_SHIFT:
518 gctx->shift = val;
519 break;
520 case ATOM_WS_OR_MASK:
521 case ATOM_WS_AND_MASK:
522 break;
523 case ATOM_WS_FB_WINDOW:
524 gctx->fb_base = val;
525 break;
526 case ATOM_WS_ATTRIBUTES:
527 gctx->io_attr = val;
528 break;
529 case ATOM_WS_REGPTR:
530 gctx->reg_block = val;
531 break;
532 default:
533 ctx->ws[idx] = val;
534 }
535 break;
536 case ATOM_ARG_FB:
537 idx = U8(*ptr);
538 (*ptr)++;
539 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
540 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n",
541 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
542 } else
543 gctx->scratch[(gctx->fb_base / 4) + idx] = val;
544 DEBUG("FB[0x%02X]", idx);
545 break;
546 case ATOM_ARG_PLL:
547 idx = U8(*ptr);
548 (*ptr)++;
549 DEBUG("PLL[0x%02X]", idx);
550 gctx->card->pll_write(gctx->card, idx, val);
551 break;
552 case ATOM_ARG_MC:
553 idx = U8(*ptr);
554 (*ptr)++;
555 DEBUG("MC[0x%02X]", idx);
556 gctx->card->mc_write(gctx->card, idx, val);
557 return;
558 }
559 switch (align) {
560 case ATOM_SRC_DWORD:
561 DEBUG(".[31:0] <- 0x%08X\n", old_val);
562 break;
563 case ATOM_SRC_WORD0:
564 DEBUG(".[15:0] <- 0x%04X\n", old_val);
565 break;
566 case ATOM_SRC_WORD8:
567 DEBUG(".[23:8] <- 0x%04X\n", old_val);
568 break;
569 case ATOM_SRC_WORD16:
570 DEBUG(".[31:16] <- 0x%04X\n", old_val);
571 break;
572 case ATOM_SRC_BYTE0:
573 DEBUG(".[7:0] <- 0x%02X\n", old_val);
574 break;
575 case ATOM_SRC_BYTE8:
576 DEBUG(".[15:8] <- 0x%02X\n", old_val);
577 break;
578 case ATOM_SRC_BYTE16:
579 DEBUG(".[23:16] <- 0x%02X\n", old_val);
580 break;
581 case ATOM_SRC_BYTE24:
582 DEBUG(".[31:24] <- 0x%02X\n", old_val);
583 break;
584 }
585 }
586
atom_op_add(atom_exec_context * ctx,int * ptr,int arg)587 static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
588 {
589 uint8_t attr = U8((*ptr)++);
590 uint32_t dst, src, saved;
591 int dptr = *ptr;
592 SDEBUG(" dst: ");
593 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
594 SDEBUG(" src: ");
595 src = atom_get_src(ctx, attr, ptr);
596 dst += src;
597 SDEBUG(" dst: ");
598 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
599 }
600
atom_op_and(atom_exec_context * ctx,int * ptr,int arg)601 static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
602 {
603 uint8_t attr = U8((*ptr)++);
604 uint32_t dst, src, saved;
605 int dptr = *ptr;
606 SDEBUG(" dst: ");
607 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
608 SDEBUG(" src: ");
609 src = atom_get_src(ctx, attr, ptr);
610 dst &= src;
611 SDEBUG(" dst: ");
612 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
613 }
614
atom_op_beep(atom_exec_context * ctx,int * ptr,int arg)615 static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
616 {
617 printk("ATOM BIOS beeped!\n");
618 }
619
atom_op_calltable(atom_exec_context * ctx,int * ptr,int arg)620 static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
621 {
622 int idx = U8((*ptr)++);
623 int r = 0;
624
625 if (idx < ATOM_TABLE_NAMES_CNT)
626 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]);
627 else
628 SDEBUG(" table: %d\n", idx);
629 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
630 r = atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift);
631 if (r) {
632 ctx->abort = true;
633 }
634 }
635
atom_op_clear(atom_exec_context * ctx,int * ptr,int arg)636 static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
637 {
638 uint8_t attr = U8((*ptr)++);
639 uint32_t saved;
640 int dptr = *ptr;
641 attr &= 0x38;
642 attr |= atom_def_dst[attr >> 3] << 6;
643 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
644 SDEBUG(" dst: ");
645 atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
646 }
647
atom_op_compare(atom_exec_context * ctx,int * ptr,int arg)648 static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
649 {
650 uint8_t attr = U8((*ptr)++);
651 uint32_t dst, src;
652 SDEBUG(" src1: ");
653 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
654 SDEBUG(" src2: ");
655 src = atom_get_src(ctx, attr, ptr);
656 ctx->ctx->cs_equal = (dst == src);
657 ctx->ctx->cs_above = (dst > src);
658 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
659 ctx->ctx->cs_above ? "GT" : "LE");
660 }
661
atom_op_delay(atom_exec_context * ctx,int * ptr,int arg)662 static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
663 {
664 unsigned count = U8((*ptr)++);
665 SDEBUG(" count: %d\n", count);
666 if (arg == ATOM_UNIT_MICROSEC)
667 udelay(count);
668 else if (!drm_can_sleep())
669 mdelay(count);
670 else
671 msleep(count);
672 }
673
atom_op_div(atom_exec_context * ctx,int * ptr,int arg)674 static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
675 {
676 uint8_t attr = U8((*ptr)++);
677 uint32_t dst, src;
678 SDEBUG(" src1: ");
679 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
680 SDEBUG(" src2: ");
681 src = atom_get_src(ctx, attr, ptr);
682 if (src != 0) {
683 ctx->ctx->divmul[0] = dst / src;
684 ctx->ctx->divmul[1] = dst % src;
685 } else {
686 ctx->ctx->divmul[0] = 0;
687 ctx->ctx->divmul[1] = 0;
688 }
689 }
690
atom_op_eot(atom_exec_context * ctx,int * ptr,int arg)691 static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
692 {
693 /* functionally, a nop */
694 }
695
atom_op_jump(atom_exec_context * ctx,int * ptr,int arg)696 static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
697 {
698 int execute = 0, target = U16(*ptr);
699 unsigned long cjiffies;
700
701 (*ptr) += 2;
702 switch (arg) {
703 case ATOM_COND_ABOVE:
704 execute = ctx->ctx->cs_above;
705 break;
706 case ATOM_COND_ABOVEOREQUAL:
707 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
708 break;
709 case ATOM_COND_ALWAYS:
710 execute = 1;
711 break;
712 case ATOM_COND_BELOW:
713 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
714 break;
715 case ATOM_COND_BELOWOREQUAL:
716 execute = !ctx->ctx->cs_above;
717 break;
718 case ATOM_COND_EQUAL:
719 execute = ctx->ctx->cs_equal;
720 break;
721 case ATOM_COND_NOTEQUAL:
722 execute = !ctx->ctx->cs_equal;
723 break;
724 }
725 if (arg != ATOM_COND_ALWAYS)
726 SDEBUG(" taken: %s\n", execute ? "yes" : "no");
727 SDEBUG(" target: 0x%04X\n", target);
728 if (execute) {
729 if (ctx->last_jump == (ctx->start + target)) {
730 cjiffies = jiffies;
731 if (time_after(cjiffies, ctx->last_jump_jiffies)) {
732 cjiffies -= ctx->last_jump_jiffies;
733 if ((jiffies_to_msecs(cjiffies) > 5000)) {
734 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n");
735 ctx->abort = true;
736 }
737 } else {
738 /* jiffies wrap around we will just wait a little longer */
739 ctx->last_jump_jiffies = jiffies;
740 }
741 } else {
742 ctx->last_jump = ctx->start + target;
743 ctx->last_jump_jiffies = jiffies;
744 }
745 *ptr = ctx->start + target;
746 }
747 }
748
atom_op_mask(atom_exec_context * ctx,int * ptr,int arg)749 static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
750 {
751 uint8_t attr = U8((*ptr)++);
752 uint32_t dst, mask, src, saved;
753 int dptr = *ptr;
754 SDEBUG(" dst: ");
755 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
756 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
757 SDEBUG(" mask: 0x%08x", mask);
758 SDEBUG(" src: ");
759 src = atom_get_src(ctx, attr, ptr);
760 dst &= mask;
761 dst |= src;
762 SDEBUG(" dst: ");
763 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
764 }
765
atom_op_move(atom_exec_context * ctx,int * ptr,int arg)766 static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
767 {
768 uint8_t attr = U8((*ptr)++);
769 uint32_t src, saved;
770 int dptr = *ptr;
771 if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
772 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
773 else {
774 atom_skip_dst(ctx, arg, attr, ptr);
775 saved = 0xCDCDCDCD;
776 }
777 SDEBUG(" src: ");
778 src = atom_get_src(ctx, attr, ptr);
779 SDEBUG(" dst: ");
780 atom_put_dst(ctx, arg, attr, &dptr, src, saved);
781 }
782
atom_op_mul(atom_exec_context * ctx,int * ptr,int arg)783 static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
784 {
785 uint8_t attr = U8((*ptr)++);
786 uint32_t dst, src;
787 SDEBUG(" src1: ");
788 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
789 SDEBUG(" src2: ");
790 src = atom_get_src(ctx, attr, ptr);
791 ctx->ctx->divmul[0] = dst * src;
792 }
793
atom_op_nop(atom_exec_context * ctx,int * ptr,int arg)794 static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
795 {
796 /* nothing */
797 }
798
atom_op_or(atom_exec_context * ctx,int * ptr,int arg)799 static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
800 {
801 uint8_t attr = U8((*ptr)++);
802 uint32_t dst, src, saved;
803 int dptr = *ptr;
804 SDEBUG(" dst: ");
805 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
806 SDEBUG(" src: ");
807 src = atom_get_src(ctx, attr, ptr);
808 dst |= src;
809 SDEBUG(" dst: ");
810 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
811 }
812
atom_op_postcard(atom_exec_context * ctx,int * ptr,int arg)813 static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
814 {
815 uint8_t val = U8((*ptr)++);
816 SDEBUG("POST card output: 0x%02X\n", val);
817 }
818
atom_op_repeat(atom_exec_context * ctx,int * ptr,int arg)819 static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
820 {
821 printk(KERN_INFO "unimplemented!\n");
822 }
823
atom_op_restorereg(atom_exec_context * ctx,int * ptr,int arg)824 static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
825 {
826 printk(KERN_INFO "unimplemented!\n");
827 }
828
atom_op_savereg(atom_exec_context * ctx,int * ptr,int arg)829 static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
830 {
831 printk(KERN_INFO "unimplemented!\n");
832 }
833
atom_op_setdatablock(atom_exec_context * ctx,int * ptr,int arg)834 static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
835 {
836 int idx = U8(*ptr);
837 (*ptr)++;
838 SDEBUG(" block: %d\n", idx);
839 if (!idx)
840 ctx->ctx->data_block = 0;
841 else if (idx == 255)
842 ctx->ctx->data_block = ctx->start;
843 else
844 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
845 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block);
846 }
847
atom_op_setfbbase(atom_exec_context * ctx,int * ptr,int arg)848 static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
849 {
850 uint8_t attr = U8((*ptr)++);
851 SDEBUG(" fb_base: ");
852 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
853 }
854
atom_op_setport(atom_exec_context * ctx,int * ptr,int arg)855 static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
856 {
857 int port;
858 switch (arg) {
859 case ATOM_PORT_ATI:
860 port = U16(*ptr);
861 if (port < ATOM_IO_NAMES_CNT)
862 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]);
863 else
864 SDEBUG(" port: %d\n", port);
865 if (!port)
866 ctx->ctx->io_mode = ATOM_IO_MM;
867 else
868 ctx->ctx->io_mode = ATOM_IO_IIO | port;
869 (*ptr) += 2;
870 break;
871 case ATOM_PORT_PCI:
872 ctx->ctx->io_mode = ATOM_IO_PCI;
873 (*ptr)++;
874 break;
875 case ATOM_PORT_SYSIO:
876 ctx->ctx->io_mode = ATOM_IO_SYSIO;
877 (*ptr)++;
878 break;
879 }
880 }
881
atom_op_setregblock(atom_exec_context * ctx,int * ptr,int arg)882 static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
883 {
884 ctx->ctx->reg_block = U16(*ptr);
885 (*ptr) += 2;
886 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block);
887 }
888
atom_op_shift_left(atom_exec_context * ctx,int * ptr,int arg)889 static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
890 {
891 uint8_t attr = U8((*ptr)++), shift;
892 uint32_t saved, dst;
893 int dptr = *ptr;
894 attr &= 0x38;
895 attr |= atom_def_dst[attr >> 3] << 6;
896 SDEBUG(" dst: ");
897 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
898 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
899 SDEBUG(" shift: %d\n", shift);
900 dst <<= shift;
901 SDEBUG(" dst: ");
902 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
903 }
904
atom_op_shift_right(atom_exec_context * ctx,int * ptr,int arg)905 static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
906 {
907 uint8_t attr = U8((*ptr)++), shift;
908 uint32_t saved, dst;
909 int dptr = *ptr;
910 attr &= 0x38;
911 attr |= atom_def_dst[attr >> 3] << 6;
912 SDEBUG(" dst: ");
913 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
914 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
915 SDEBUG(" shift: %d\n", shift);
916 dst >>= shift;
917 SDEBUG(" dst: ");
918 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
919 }
920
atom_op_shl(atom_exec_context * ctx,int * ptr,int arg)921 static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
922 {
923 uint8_t attr = U8((*ptr)++), shift;
924 uint32_t saved, dst;
925 int dptr = *ptr;
926 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
927 SDEBUG(" dst: ");
928 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
929 /* op needs to full dst value */
930 dst = saved;
931 shift = atom_get_src(ctx, attr, ptr);
932 SDEBUG(" shift: %d\n", shift);
933 dst <<= shift;
934 dst &= atom_arg_mask[dst_align];
935 dst >>= atom_arg_shift[dst_align];
936 SDEBUG(" dst: ");
937 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
938 }
939
atom_op_shr(atom_exec_context * ctx,int * ptr,int arg)940 static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
941 {
942 uint8_t attr = U8((*ptr)++), shift;
943 uint32_t saved, dst;
944 int dptr = *ptr;
945 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
946 SDEBUG(" dst: ");
947 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
948 /* op needs to full dst value */
949 dst = saved;
950 shift = atom_get_src(ctx, attr, ptr);
951 SDEBUG(" shift: %d\n", shift);
952 dst >>= shift;
953 dst &= atom_arg_mask[dst_align];
954 dst >>= atom_arg_shift[dst_align];
955 SDEBUG(" dst: ");
956 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
957 }
958
atom_op_sub(atom_exec_context * ctx,int * ptr,int arg)959 static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
960 {
961 uint8_t attr = U8((*ptr)++);
962 uint32_t dst, src, saved;
963 int dptr = *ptr;
964 SDEBUG(" dst: ");
965 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
966 SDEBUG(" src: ");
967 src = atom_get_src(ctx, attr, ptr);
968 dst -= src;
969 SDEBUG(" dst: ");
970 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
971 }
972
atom_op_switch(atom_exec_context * ctx,int * ptr,int arg)973 static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
974 {
975 uint8_t attr = U8((*ptr)++);
976 uint32_t src, val, target;
977 SDEBUG(" switch: ");
978 src = atom_get_src(ctx, attr, ptr);
979 while (U16(*ptr) != ATOM_CASE_END)
980 if (U8(*ptr) == ATOM_CASE_MAGIC) {
981 (*ptr)++;
982 SDEBUG(" case: ");
983 val =
984 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
985 ptr);
986 target = U16(*ptr);
987 if (val == src) {
988 SDEBUG(" target: %04X\n", target);
989 *ptr = ctx->start + target;
990 return;
991 }
992 (*ptr) += 2;
993 } else {
994 printk(KERN_INFO "Bad case.\n");
995 return;
996 }
997 (*ptr) += 2;
998 }
999
atom_op_test(atom_exec_context * ctx,int * ptr,int arg)1000 static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
1001 {
1002 uint8_t attr = U8((*ptr)++);
1003 uint32_t dst, src;
1004 SDEBUG(" src1: ");
1005 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
1006 SDEBUG(" src2: ");
1007 src = atom_get_src(ctx, attr, ptr);
1008 ctx->ctx->cs_equal = ((dst & src) == 0);
1009 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
1010 }
1011
atom_op_xor(atom_exec_context * ctx,int * ptr,int arg)1012 static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
1013 {
1014 uint8_t attr = U8((*ptr)++);
1015 uint32_t dst, src, saved;
1016 int dptr = *ptr;
1017 SDEBUG(" dst: ");
1018 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1019 SDEBUG(" src: ");
1020 src = atom_get_src(ctx, attr, ptr);
1021 dst ^= src;
1022 SDEBUG(" dst: ");
1023 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1024 }
1025
atom_op_debug(atom_exec_context * ctx,int * ptr,int arg)1026 static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1027 {
1028 printk(KERN_INFO "unimplemented!\n");
1029 }
1030
1031 static struct {
1032 void (*func) (atom_exec_context *, int *, int);
1033 int arg;
1034 } opcode_table[ATOM_OP_CNT] = {
1035 {
1036 NULL, 0}, {
1037 atom_op_move, ATOM_ARG_REG}, {
1038 atom_op_move, ATOM_ARG_PS}, {
1039 atom_op_move, ATOM_ARG_WS}, {
1040 atom_op_move, ATOM_ARG_FB}, {
1041 atom_op_move, ATOM_ARG_PLL}, {
1042 atom_op_move, ATOM_ARG_MC}, {
1043 atom_op_and, ATOM_ARG_REG}, {
1044 atom_op_and, ATOM_ARG_PS}, {
1045 atom_op_and, ATOM_ARG_WS}, {
1046 atom_op_and, ATOM_ARG_FB}, {
1047 atom_op_and, ATOM_ARG_PLL}, {
1048 atom_op_and, ATOM_ARG_MC}, {
1049 atom_op_or, ATOM_ARG_REG}, {
1050 atom_op_or, ATOM_ARG_PS}, {
1051 atom_op_or, ATOM_ARG_WS}, {
1052 atom_op_or, ATOM_ARG_FB}, {
1053 atom_op_or, ATOM_ARG_PLL}, {
1054 atom_op_or, ATOM_ARG_MC}, {
1055 atom_op_shift_left, ATOM_ARG_REG}, {
1056 atom_op_shift_left, ATOM_ARG_PS}, {
1057 atom_op_shift_left, ATOM_ARG_WS}, {
1058 atom_op_shift_left, ATOM_ARG_FB}, {
1059 atom_op_shift_left, ATOM_ARG_PLL}, {
1060 atom_op_shift_left, ATOM_ARG_MC}, {
1061 atom_op_shift_right, ATOM_ARG_REG}, {
1062 atom_op_shift_right, ATOM_ARG_PS}, {
1063 atom_op_shift_right, ATOM_ARG_WS}, {
1064 atom_op_shift_right, ATOM_ARG_FB}, {
1065 atom_op_shift_right, ATOM_ARG_PLL}, {
1066 atom_op_shift_right, ATOM_ARG_MC}, {
1067 atom_op_mul, ATOM_ARG_REG}, {
1068 atom_op_mul, ATOM_ARG_PS}, {
1069 atom_op_mul, ATOM_ARG_WS}, {
1070 atom_op_mul, ATOM_ARG_FB}, {
1071 atom_op_mul, ATOM_ARG_PLL}, {
1072 atom_op_mul, ATOM_ARG_MC}, {
1073 atom_op_div, ATOM_ARG_REG}, {
1074 atom_op_div, ATOM_ARG_PS}, {
1075 atom_op_div, ATOM_ARG_WS}, {
1076 atom_op_div, ATOM_ARG_FB}, {
1077 atom_op_div, ATOM_ARG_PLL}, {
1078 atom_op_div, ATOM_ARG_MC}, {
1079 atom_op_add, ATOM_ARG_REG}, {
1080 atom_op_add, ATOM_ARG_PS}, {
1081 atom_op_add, ATOM_ARG_WS}, {
1082 atom_op_add, ATOM_ARG_FB}, {
1083 atom_op_add, ATOM_ARG_PLL}, {
1084 atom_op_add, ATOM_ARG_MC}, {
1085 atom_op_sub, ATOM_ARG_REG}, {
1086 atom_op_sub, ATOM_ARG_PS}, {
1087 atom_op_sub, ATOM_ARG_WS}, {
1088 atom_op_sub, ATOM_ARG_FB}, {
1089 atom_op_sub, ATOM_ARG_PLL}, {
1090 atom_op_sub, ATOM_ARG_MC}, {
1091 atom_op_setport, ATOM_PORT_ATI}, {
1092 atom_op_setport, ATOM_PORT_PCI}, {
1093 atom_op_setport, ATOM_PORT_SYSIO}, {
1094 atom_op_setregblock, 0}, {
1095 atom_op_setfbbase, 0}, {
1096 atom_op_compare, ATOM_ARG_REG}, {
1097 atom_op_compare, ATOM_ARG_PS}, {
1098 atom_op_compare, ATOM_ARG_WS}, {
1099 atom_op_compare, ATOM_ARG_FB}, {
1100 atom_op_compare, ATOM_ARG_PLL}, {
1101 atom_op_compare, ATOM_ARG_MC}, {
1102 atom_op_switch, 0}, {
1103 atom_op_jump, ATOM_COND_ALWAYS}, {
1104 atom_op_jump, ATOM_COND_EQUAL}, {
1105 atom_op_jump, ATOM_COND_BELOW}, {
1106 atom_op_jump, ATOM_COND_ABOVE}, {
1107 atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1108 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1109 atom_op_jump, ATOM_COND_NOTEQUAL}, {
1110 atom_op_test, ATOM_ARG_REG}, {
1111 atom_op_test, ATOM_ARG_PS}, {
1112 atom_op_test, ATOM_ARG_WS}, {
1113 atom_op_test, ATOM_ARG_FB}, {
1114 atom_op_test, ATOM_ARG_PLL}, {
1115 atom_op_test, ATOM_ARG_MC}, {
1116 atom_op_delay, ATOM_UNIT_MILLISEC}, {
1117 atom_op_delay, ATOM_UNIT_MICROSEC}, {
1118 atom_op_calltable, 0}, {
1119 atom_op_repeat, 0}, {
1120 atom_op_clear, ATOM_ARG_REG}, {
1121 atom_op_clear, ATOM_ARG_PS}, {
1122 atom_op_clear, ATOM_ARG_WS}, {
1123 atom_op_clear, ATOM_ARG_FB}, {
1124 atom_op_clear, ATOM_ARG_PLL}, {
1125 atom_op_clear, ATOM_ARG_MC}, {
1126 atom_op_nop, 0}, {
1127 atom_op_eot, 0}, {
1128 atom_op_mask, ATOM_ARG_REG}, {
1129 atom_op_mask, ATOM_ARG_PS}, {
1130 atom_op_mask, ATOM_ARG_WS}, {
1131 atom_op_mask, ATOM_ARG_FB}, {
1132 atom_op_mask, ATOM_ARG_PLL}, {
1133 atom_op_mask, ATOM_ARG_MC}, {
1134 atom_op_postcard, 0}, {
1135 atom_op_beep, 0}, {
1136 atom_op_savereg, 0}, {
1137 atom_op_restorereg, 0}, {
1138 atom_op_setdatablock, 0}, {
1139 atom_op_xor, ATOM_ARG_REG}, {
1140 atom_op_xor, ATOM_ARG_PS}, {
1141 atom_op_xor, ATOM_ARG_WS}, {
1142 atom_op_xor, ATOM_ARG_FB}, {
1143 atom_op_xor, ATOM_ARG_PLL}, {
1144 atom_op_xor, ATOM_ARG_MC}, {
1145 atom_op_shl, ATOM_ARG_REG}, {
1146 atom_op_shl, ATOM_ARG_PS}, {
1147 atom_op_shl, ATOM_ARG_WS}, {
1148 atom_op_shl, ATOM_ARG_FB}, {
1149 atom_op_shl, ATOM_ARG_PLL}, {
1150 atom_op_shl, ATOM_ARG_MC}, {
1151 atom_op_shr, ATOM_ARG_REG}, {
1152 atom_op_shr, ATOM_ARG_PS}, {
1153 atom_op_shr, ATOM_ARG_WS}, {
1154 atom_op_shr, ATOM_ARG_FB}, {
1155 atom_op_shr, ATOM_ARG_PLL}, {
1156 atom_op_shr, ATOM_ARG_MC}, {
1157 atom_op_debug, 0},};
1158
atom_execute_table_locked(struct atom_context * ctx,int index,uint32_t * params)1159 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params)
1160 {
1161 int base = CU16(ctx->cmd_table + 4 + 2 * index);
1162 int len, ws, ps, ptr;
1163 unsigned char op;
1164 atom_exec_context ectx;
1165 int ret = 0;
1166
1167 if (!base)
1168 return -EINVAL;
1169
1170 len = CU16(base + ATOM_CT_SIZE_PTR);
1171 ws = CU8(base + ATOM_CT_WS_PTR);
1172 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1173 ptr = base + ATOM_CT_CODE_PTR;
1174
1175 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1176
1177 ectx.ctx = ctx;
1178 ectx.ps_shift = ps / 4;
1179 ectx.start = base;
1180 ectx.ps = params;
1181 ectx.abort = false;
1182 ectx.last_jump = 0;
1183 if (ws)
1184 ectx.ws = kzalloc(4 * ws, GFP_KERNEL);
1185 else
1186 ectx.ws = NULL;
1187
1188 debug_depth++;
1189 while (1) {
1190 op = CU8(ptr++);
1191 if (op < ATOM_OP_NAMES_CNT)
1192 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1193 else
1194 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
1195 if (ectx.abort) {
1196 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1197 base, len, ws, ps, ptr - 1);
1198 ret = -EINVAL;
1199 goto free;
1200 }
1201
1202 if (op < ATOM_OP_CNT && op > 0)
1203 opcode_table[op].func(&ectx, &ptr,
1204 opcode_table[op].arg);
1205 else
1206 break;
1207
1208 if (op == ATOM_OP_EOT)
1209 break;
1210 }
1211 debug_depth--;
1212 SDEBUG("<<\n");
1213
1214 free:
1215 if (ws)
1216 kfree(ectx.ws);
1217 return ret;
1218 }
1219
atom_execute_table(struct atom_context * ctx,int index,uint32_t * params)1220 int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
1221 {
1222 int r;
1223
1224 mutex_lock(&ctx->mutex);
1225 /* reset data block */
1226 ctx->data_block = 0;
1227 /* reset reg block */
1228 ctx->reg_block = 0;
1229 /* reset fb window */
1230 ctx->fb_base = 0;
1231 /* reset io mode */
1232 ctx->io_mode = ATOM_IO_MM;
1233 /* reset divmul */
1234 ctx->divmul[0] = 0;
1235 ctx->divmul[1] = 0;
1236 r = atom_execute_table_locked(ctx, index, params);
1237 mutex_unlock(&ctx->mutex);
1238 return r;
1239 }
1240
1241 static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1242
atom_index_iio(struct atom_context * ctx,int base)1243 static void atom_index_iio(struct atom_context *ctx, int base)
1244 {
1245 ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1246 while (CU8(base) == ATOM_IIO_START) {
1247 ctx->iio[CU8(base + 1)] = base + 2;
1248 base += 2;
1249 while (CU8(base) != ATOM_IIO_END)
1250 base += atom_iio_len[CU8(base)];
1251 base += 3;
1252 }
1253 }
1254
atom_parse(struct card_info * card,void * bios)1255 struct atom_context *atom_parse(struct card_info *card, void *bios)
1256 {
1257 int base;
1258 struct atom_context *ctx =
1259 kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1260 char *str;
1261 char name[512];
1262 int i;
1263
1264 if (!ctx)
1265 return NULL;
1266
1267 ctx->card = card;
1268 ctx->bios = bios;
1269
1270 if (CU16(0) != ATOM_BIOS_MAGIC) {
1271 printk(KERN_INFO "Invalid BIOS magic.\n");
1272 kfree(ctx);
1273 return NULL;
1274 }
1275 if (strncmp
1276 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1277 strlen(ATOM_ATI_MAGIC))) {
1278 printk(KERN_INFO "Invalid ATI magic.\n");
1279 kfree(ctx);
1280 return NULL;
1281 }
1282
1283 base = CU16(ATOM_ROM_TABLE_PTR);
1284 if (strncmp
1285 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1286 strlen(ATOM_ROM_MAGIC))) {
1287 printk(KERN_INFO "Invalid ATOM magic.\n");
1288 kfree(ctx);
1289 return NULL;
1290 }
1291
1292 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1293 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1294 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1295
1296 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR));
1297 while (*str && ((*str == '\n') || (*str == '\r')))
1298 str++;
1299 /* name string isn't always 0 terminated */
1300 for (i = 0; i < 511; i++) {
1301 name[i] = str[i];
1302 if (name[i] < '.' || name[i] > 'z') {
1303 name[i] = 0;
1304 break;
1305 }
1306 }
1307 printk(KERN_INFO "ATOM BIOS: %s\n", name);
1308
1309 return ctx;
1310 }
1311
atom_asic_init(struct atom_context * ctx)1312 int atom_asic_init(struct atom_context *ctx)
1313 {
1314 struct radeon_device *rdev = ctx->card->dev->dev_private;
1315 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1316 uint32_t ps[16];
1317 int ret;
1318
1319 memset(ps, 0, 64);
1320
1321 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1322 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1323 if (!ps[0] || !ps[1])
1324 return 1;
1325
1326 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1327 return 1;
1328 ret = atom_execute_table(ctx, ATOM_CMD_INIT, ps);
1329 if (ret)
1330 return ret;
1331
1332 memset(ps, 0, 64);
1333
1334 if (rdev->family < CHIP_R600) {
1335 if (CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_SPDFANCNTL))
1336 atom_execute_table(ctx, ATOM_CMD_SPDFANCNTL, ps);
1337 }
1338 return ret;
1339 }
1340
atom_destroy(struct atom_context * ctx)1341 void atom_destroy(struct atom_context *ctx)
1342 {
1343 if (ctx->iio)
1344 kfree(ctx->iio);
1345 kfree(ctx);
1346 }
1347
atom_parse_data_header(struct atom_context * ctx,int index,uint16_t * size,uint8_t * frev,uint8_t * crev,uint16_t * data_start)1348 bool atom_parse_data_header(struct atom_context *ctx, int index,
1349 uint16_t * size, uint8_t * frev, uint8_t * crev,
1350 uint16_t * data_start)
1351 {
1352 int offset = index * 2 + 4;
1353 int idx = CU16(ctx->data_table + offset);
1354 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1355
1356 if (!mdt[index])
1357 return false;
1358
1359 if (size)
1360 *size = CU16(idx);
1361 if (frev)
1362 *frev = CU8(idx + 2);
1363 if (crev)
1364 *crev = CU8(idx + 3);
1365 *data_start = idx;
1366 return true;
1367 }
1368
atom_parse_cmd_header(struct atom_context * ctx,int index,uint8_t * frev,uint8_t * crev)1369 bool atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev,
1370 uint8_t * crev)
1371 {
1372 int offset = index * 2 + 4;
1373 int idx = CU16(ctx->cmd_table + offset);
1374 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1375
1376 if (!mct[index])
1377 return false;
1378
1379 if (frev)
1380 *frev = CU8(idx + 2);
1381 if (crev)
1382 *crev = CU8(idx + 3);
1383 return true;
1384 }
1385
atom_allocate_fb_scratch(struct atom_context * ctx)1386 int atom_allocate_fb_scratch(struct atom_context *ctx)
1387 {
1388 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
1389 uint16_t data_offset;
1390 int usage_bytes = 0;
1391 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1392
1393 if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
1394 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
1395
1396 DRM_DEBUG("atom firmware requested %08x %dkb\n",
1397 le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
1398 le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));
1399
1400 usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
1401 }
1402 ctx->scratch_size_bytes = 0;
1403 if (usage_bytes == 0)
1404 usage_bytes = 20 * 1024;
1405 /* allocate some scratch memory */
1406 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
1407 if (!ctx->scratch)
1408 return -ENOMEM;
1409 ctx->scratch_size_bytes = usage_bytes;
1410 return 0;
1411 }
1412