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tracing: Have max_latency be defined for HWLAT_TRACER as well
[deliverable/linux.git] / drivers / gpu / drm / radeon / radeon_uvd.c
1 /*
2 * Copyright 2011 Advanced Micro Devices, Inc.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
16 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
17 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
18 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
19 * USE OR OTHER DEALINGS IN THE SOFTWARE.
20 *
21 * The above copyright notice and this permission notice (including the
22 * next paragraph) shall be included in all copies or substantial portions
23 * of the Software.
24 *
25 */
26 /*
27 * Authors:
28 * Christian König <deathsimple@vodafone.de>
29 */
30
31 #include <linux/firmware.h>
32 #include <linux/module.h>
33 #include <drm/drmP.h>
34 #include <drm/drm.h>
35
36 #include "radeon.h"
37 #include "radeon_ucode.h"
38 #include "r600d.h"
39
40 /* 1 second timeout */
41 #define UVD_IDLE_TIMEOUT_MS 1000
42
43 /* Firmware Names */
44 #define FIRMWARE_R600 "radeon/R600_uvd.bin"
45 #define FIRMWARE_RS780 "radeon/RS780_uvd.bin"
46 #define FIRMWARE_RV770 "radeon/RV770_uvd.bin"
47 #define FIRMWARE_RV710 "radeon/RV710_uvd.bin"
48 #define FIRMWARE_CYPRESS "radeon/CYPRESS_uvd.bin"
49 #define FIRMWARE_SUMO "radeon/SUMO_uvd.bin"
50 #define FIRMWARE_TAHITI "radeon/TAHITI_uvd.bin"
51 #define FIRMWARE_BONAIRE_LEGACY "radeon/BONAIRE_uvd.bin"
52 #define FIRMWARE_BONAIRE "radeon/bonaire_uvd.bin"
53
54 MODULE_FIRMWARE(FIRMWARE_R600);
55 MODULE_FIRMWARE(FIRMWARE_RS780);
56 MODULE_FIRMWARE(FIRMWARE_RV770);
57 MODULE_FIRMWARE(FIRMWARE_RV710);
58 MODULE_FIRMWARE(FIRMWARE_CYPRESS);
59 MODULE_FIRMWARE(FIRMWARE_SUMO);
60 MODULE_FIRMWARE(FIRMWARE_TAHITI);
61 MODULE_FIRMWARE(FIRMWARE_BONAIRE_LEGACY);
62 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
63
64 static void radeon_uvd_idle_work_handler(struct work_struct *work);
65
66 int radeon_uvd_init(struct radeon_device *rdev)
67 {
68 unsigned long bo_size;
69 const char *fw_name = NULL, *legacy_fw_name = NULL;
70 int i, r;
71
72 INIT_DELAYED_WORK(&rdev->uvd.idle_work, radeon_uvd_idle_work_handler);
73
74 switch (rdev->family) {
75 case CHIP_RV610:
76 case CHIP_RV630:
77 case CHIP_RV670:
78 case CHIP_RV620:
79 case CHIP_RV635:
80 legacy_fw_name = FIRMWARE_R600;
81 break;
82
83 case CHIP_RS780:
84 case CHIP_RS880:
85 legacy_fw_name = FIRMWARE_RS780;
86 break;
87
88 case CHIP_RV770:
89 legacy_fw_name = FIRMWARE_RV770;
90 break;
91
92 case CHIP_RV710:
93 case CHIP_RV730:
94 case CHIP_RV740:
95 legacy_fw_name = FIRMWARE_RV710;
96 break;
97
98 case CHIP_CYPRESS:
99 case CHIP_HEMLOCK:
100 case CHIP_JUNIPER:
101 case CHIP_REDWOOD:
102 case CHIP_CEDAR:
103 legacy_fw_name = FIRMWARE_CYPRESS;
104 break;
105
106 case CHIP_SUMO:
107 case CHIP_SUMO2:
108 case CHIP_PALM:
109 case CHIP_CAYMAN:
110 case CHIP_BARTS:
111 case CHIP_TURKS:
112 case CHIP_CAICOS:
113 legacy_fw_name = FIRMWARE_SUMO;
114 break;
115
116 case CHIP_TAHITI:
117 case CHIP_VERDE:
118 case CHIP_PITCAIRN:
119 case CHIP_ARUBA:
120 case CHIP_OLAND:
121 legacy_fw_name = FIRMWARE_TAHITI;
122 break;
123
124 case CHIP_BONAIRE:
125 case CHIP_KABINI:
126 case CHIP_KAVERI:
127 case CHIP_HAWAII:
128 case CHIP_MULLINS:
129 legacy_fw_name = FIRMWARE_BONAIRE_LEGACY;
130 fw_name = FIRMWARE_BONAIRE;
131 break;
132
133 default:
134 return -EINVAL;
135 }
136
137 rdev->uvd.fw_header_present = false;
138 rdev->uvd.max_handles = RADEON_DEFAULT_UVD_HANDLES;
139 if (fw_name) {
140 /* Let's try to load the newer firmware first */
141 r = request_firmware(&rdev->uvd_fw, fw_name, rdev->dev);
142 if (r) {
143 dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
144 fw_name);
145 } else {
146 struct common_firmware_header *hdr = (void *)rdev->uvd_fw->data;
147 unsigned version_major, version_minor, family_id;
148
149 r = radeon_ucode_validate(rdev->uvd_fw);
150 if (r)
151 return r;
152
153 rdev->uvd.fw_header_present = true;
154
155 family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
156 version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
157 version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
158 DRM_INFO("Found UVD firmware Version: %hu.%hu Family ID: %hu\n",
159 version_major, version_minor, family_id);
160
161 /*
162 * Limit the number of UVD handles depending on
163 * microcode major and minor versions.
164 */
165 if ((version_major >= 0x01) && (version_minor >= 0x37))
166 rdev->uvd.max_handles = RADEON_MAX_UVD_HANDLES;
167 }
168 }
169
170 /*
171 * In case there is only legacy firmware, or we encounter an error
172 * while loading the new firmware, we fall back to loading the legacy
173 * firmware now.
174 */
175 if (!fw_name || r) {
176 r = request_firmware(&rdev->uvd_fw, legacy_fw_name, rdev->dev);
177 if (r) {
178 dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
179 legacy_fw_name);
180 return r;
181 }
182 }
183
184 bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 8) +
185 RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE +
186 RADEON_UVD_SESSION_SIZE * rdev->uvd.max_handles;
187 r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true,
188 RADEON_GEM_DOMAIN_VRAM, 0, NULL,
189 NULL, &rdev->uvd.vcpu_bo);
190 if (r) {
191 dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r);
192 return r;
193 }
194
195 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
196 if (r) {
197 radeon_bo_unref(&rdev->uvd.vcpu_bo);
198 dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r);
199 return r;
200 }
201
202 r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
203 &rdev->uvd.gpu_addr);
204 if (r) {
205 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
206 radeon_bo_unref(&rdev->uvd.vcpu_bo);
207 dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r);
208 return r;
209 }
210
211 r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
212 if (r) {
213 dev_err(rdev->dev, "(%d) UVD map failed\n", r);
214 return r;
215 }
216
217 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
218
219 for (i = 0; i < rdev->uvd.max_handles; ++i) {
220 atomic_set(&rdev->uvd.handles[i], 0);
221 rdev->uvd.filp[i] = NULL;
222 rdev->uvd.img_size[i] = 0;
223 }
224
225 return 0;
226 }
227
228 void radeon_uvd_fini(struct radeon_device *rdev)
229 {
230 int r;
231
232 if (rdev->uvd.vcpu_bo == NULL)
233 return;
234
235 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
236 if (!r) {
237 radeon_bo_kunmap(rdev->uvd.vcpu_bo);
238 radeon_bo_unpin(rdev->uvd.vcpu_bo);
239 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
240 }
241
242 radeon_bo_unref(&rdev->uvd.vcpu_bo);
243
244 radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX]);
245
246 release_firmware(rdev->uvd_fw);
247 }
248
249 int radeon_uvd_suspend(struct radeon_device *rdev)
250 {
251 int i, r;
252
253 if (rdev->uvd.vcpu_bo == NULL)
254 return 0;
255
256 for (i = 0; i < rdev->uvd.max_handles; ++i) {
257 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
258 if (handle != 0) {
259 struct radeon_fence *fence;
260
261 radeon_uvd_note_usage(rdev);
262
263 r = radeon_uvd_get_destroy_msg(rdev,
264 R600_RING_TYPE_UVD_INDEX, handle, &fence);
265 if (r) {
266 DRM_ERROR("Error destroying UVD (%d)!\n", r);
267 continue;
268 }
269
270 radeon_fence_wait(fence, false);
271 radeon_fence_unref(&fence);
272
273 rdev->uvd.filp[i] = NULL;
274 atomic_set(&rdev->uvd.handles[i], 0);
275 }
276 }
277
278 return 0;
279 }
280
281 int radeon_uvd_resume(struct radeon_device *rdev)
282 {
283 unsigned size;
284 void *ptr;
285
286 if (rdev->uvd.vcpu_bo == NULL)
287 return -EINVAL;
288
289 memcpy(rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->size);
290
291 size = radeon_bo_size(rdev->uvd.vcpu_bo);
292 size -= rdev->uvd_fw->size;
293
294 ptr = rdev->uvd.cpu_addr;
295 ptr += rdev->uvd_fw->size;
296
297 memset(ptr, 0, size);
298
299 return 0;
300 }
301
302 void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo,
303 uint32_t allowed_domains)
304 {
305 int i;
306
307 for (i = 0; i < rbo->placement.num_placement; ++i) {
308 rbo->placements[i].fpfn = 0 >> PAGE_SHIFT;
309 rbo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
310 }
311
312 /* If it must be in VRAM it must be in the first segment as well */
313 if (allowed_domains == RADEON_GEM_DOMAIN_VRAM)
314 return;
315
316 /* abort if we already have more than one placement */
317 if (rbo->placement.num_placement > 1)
318 return;
319
320 /* add another 256MB segment */
321 rbo->placements[1] = rbo->placements[0];
322 rbo->placements[1].fpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
323 rbo->placements[1].lpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
324 rbo->placement.num_placement++;
325 rbo->placement.num_busy_placement++;
326 }
327
328 void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
329 {
330 int i, r;
331 for (i = 0; i < rdev->uvd.max_handles; ++i) {
332 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
333 if (handle != 0 && rdev->uvd.filp[i] == filp) {
334 struct radeon_fence *fence;
335
336 radeon_uvd_note_usage(rdev);
337
338 r = radeon_uvd_get_destroy_msg(rdev,
339 R600_RING_TYPE_UVD_INDEX, handle, &fence);
340 if (r) {
341 DRM_ERROR("Error destroying UVD (%d)!\n", r);
342 continue;
343 }
344
345 radeon_fence_wait(fence, false);
346 radeon_fence_unref(&fence);
347
348 rdev->uvd.filp[i] = NULL;
349 atomic_set(&rdev->uvd.handles[i], 0);
350 }
351 }
352 }
353
354 static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
355 {
356 unsigned stream_type = msg[4];
357 unsigned width = msg[6];
358 unsigned height = msg[7];
359 unsigned dpb_size = msg[9];
360 unsigned pitch = msg[28];
361
362 unsigned width_in_mb = width / 16;
363 unsigned height_in_mb = ALIGN(height / 16, 2);
364
365 unsigned image_size, tmp, min_dpb_size;
366
367 image_size = width * height;
368 image_size += image_size / 2;
369 image_size = ALIGN(image_size, 1024);
370
371 switch (stream_type) {
372 case 0: /* H264 */
373
374 /* reference picture buffer */
375 min_dpb_size = image_size * 17;
376
377 /* macroblock context buffer */
378 min_dpb_size += width_in_mb * height_in_mb * 17 * 192;
379
380 /* IT surface buffer */
381 min_dpb_size += width_in_mb * height_in_mb * 32;
382 break;
383
384 case 1: /* VC1 */
385
386 /* reference picture buffer */
387 min_dpb_size = image_size * 3;
388
389 /* CONTEXT_BUFFER */
390 min_dpb_size += width_in_mb * height_in_mb * 128;
391
392 /* IT surface buffer */
393 min_dpb_size += width_in_mb * 64;
394
395 /* DB surface buffer */
396 min_dpb_size += width_in_mb * 128;
397
398 /* BP */
399 tmp = max(width_in_mb, height_in_mb);
400 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
401 break;
402
403 case 3: /* MPEG2 */
404
405 /* reference picture buffer */
406 min_dpb_size = image_size * 3;
407 break;
408
409 case 4: /* MPEG4 */
410
411 /* reference picture buffer */
412 min_dpb_size = image_size * 3;
413
414 /* CM */
415 min_dpb_size += width_in_mb * height_in_mb * 64;
416
417 /* IT surface buffer */
418 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
419 break;
420
421 default:
422 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
423 return -EINVAL;
424 }
425
426 if (width > pitch) {
427 DRM_ERROR("Invalid UVD decoding target pitch!\n");
428 return -EINVAL;
429 }
430
431 if (dpb_size < min_dpb_size) {
432 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
433 dpb_size, min_dpb_size);
434 return -EINVAL;
435 }
436
437 buf_sizes[0x1] = dpb_size;
438 buf_sizes[0x2] = image_size;
439 return 0;
440 }
441
442 static int radeon_uvd_validate_codec(struct radeon_cs_parser *p,
443 unsigned stream_type)
444 {
445 switch (stream_type) {
446 case 0: /* H264 */
447 case 1: /* VC1 */
448 /* always supported */
449 return 0;
450
451 case 3: /* MPEG2 */
452 case 4: /* MPEG4 */
453 /* only since UVD 3 */
454 if (p->rdev->family >= CHIP_PALM)
455 return 0;
456
457 /* fall through */
458 default:
459 DRM_ERROR("UVD codec not supported by hardware %d!\n",
460 stream_type);
461 return -EINVAL;
462 }
463 }
464
465 static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
466 unsigned offset, unsigned buf_sizes[])
467 {
468 int32_t *msg, msg_type, handle;
469 unsigned img_size = 0;
470 struct fence *f;
471 void *ptr;
472
473 int i, r;
474
475 if (offset & 0x3F) {
476 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
477 return -EINVAL;
478 }
479
480 f = reservation_object_get_excl(bo->tbo.resv);
481 if (f) {
482 r = radeon_fence_wait((struct radeon_fence *)f, false);
483 if (r) {
484 DRM_ERROR("Failed waiting for UVD message (%d)!\n", r);
485 return r;
486 }
487 }
488
489 r = radeon_bo_kmap(bo, &ptr);
490 if (r) {
491 DRM_ERROR("Failed mapping the UVD message (%d)!\n", r);
492 return r;
493 }
494
495 msg = ptr + offset;
496
497 msg_type = msg[1];
498 handle = msg[2];
499
500 if (handle == 0) {
501 DRM_ERROR("Invalid UVD handle!\n");
502 return -EINVAL;
503 }
504
505 switch (msg_type) {
506 case 0:
507 /* it's a create msg, calc image size (width * height) */
508 img_size = msg[7] * msg[8];
509
510 r = radeon_uvd_validate_codec(p, msg[4]);
511 radeon_bo_kunmap(bo);
512 if (r)
513 return r;
514
515 /* try to alloc a new handle */
516 for (i = 0; i < p->rdev->uvd.max_handles; ++i) {
517 if (atomic_read(&p->rdev->uvd.handles[i]) == handle) {
518 DRM_ERROR("Handle 0x%x already in use!\n", handle);
519 return -EINVAL;
520 }
521
522 if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
523 p->rdev->uvd.filp[i] = p->filp;
524 p->rdev->uvd.img_size[i] = img_size;
525 return 0;
526 }
527 }
528
529 DRM_ERROR("No more free UVD handles!\n");
530 return -EINVAL;
531
532 case 1:
533 /* it's a decode msg, validate codec and calc buffer sizes */
534 r = radeon_uvd_validate_codec(p, msg[4]);
535 if (!r)
536 r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
537 radeon_bo_kunmap(bo);
538 if (r)
539 return r;
540
541 /* validate the handle */
542 for (i = 0; i < p->rdev->uvd.max_handles; ++i) {
543 if (atomic_read(&p->rdev->uvd.handles[i]) == handle) {
544 if (p->rdev->uvd.filp[i] != p->filp) {
545 DRM_ERROR("UVD handle collision detected!\n");
546 return -EINVAL;
547 }
548 return 0;
549 }
550 }
551
552 DRM_ERROR("Invalid UVD handle 0x%x!\n", handle);
553 return -ENOENT;
554
555 case 2:
556 /* it's a destroy msg, free the handle */
557 for (i = 0; i < p->rdev->uvd.max_handles; ++i)
558 atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0);
559 radeon_bo_kunmap(bo);
560 return 0;
561
562 default:
563
564 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
565 return -EINVAL;
566 }
567
568 BUG();
569 return -EINVAL;
570 }
571
572 static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
573 int data0, int data1,
574 unsigned buf_sizes[], bool *has_msg_cmd)
575 {
576 struct radeon_cs_chunk *relocs_chunk;
577 struct radeon_bo_list *reloc;
578 unsigned idx, cmd, offset;
579 uint64_t start, end;
580 int r;
581
582 relocs_chunk = p->chunk_relocs;
583 offset = radeon_get_ib_value(p, data0);
584 idx = radeon_get_ib_value(p, data1);
585 if (idx >= relocs_chunk->length_dw) {
586 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
587 idx, relocs_chunk->length_dw);
588 return -EINVAL;
589 }
590
591 reloc = &p->relocs[(idx / 4)];
592 start = reloc->gpu_offset;
593 end = start + radeon_bo_size(reloc->robj);
594 start += offset;
595
596 p->ib.ptr[data0] = start & 0xFFFFFFFF;
597 p->ib.ptr[data1] = start >> 32;
598
599 cmd = radeon_get_ib_value(p, p->idx) >> 1;
600
601 if (cmd < 0x4) {
602 if (end <= start) {
603 DRM_ERROR("invalid reloc offset %X!\n", offset);
604 return -EINVAL;
605 }
606 if ((end - start) < buf_sizes[cmd]) {
607 DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
608 (unsigned)(end - start), buf_sizes[cmd]);
609 return -EINVAL;
610 }
611
612 } else if (cmd != 0x100) {
613 DRM_ERROR("invalid UVD command %X!\n", cmd);
614 return -EINVAL;
615 }
616
617 if ((start >> 28) != ((end - 1) >> 28)) {
618 DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
619 start, end);
620 return -EINVAL;
621 }
622
623 /* TODO: is this still necessary on NI+ ? */
624 if ((cmd == 0 || cmd == 0x3) &&
625 (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
626 DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
627 start, end);
628 return -EINVAL;
629 }
630
631 if (cmd == 0) {
632 if (*has_msg_cmd) {
633 DRM_ERROR("More than one message in a UVD-IB!\n");
634 return -EINVAL;
635 }
636 *has_msg_cmd = true;
637 r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
638 if (r)
639 return r;
640 } else if (!*has_msg_cmd) {
641 DRM_ERROR("Message needed before other commands are send!\n");
642 return -EINVAL;
643 }
644
645 return 0;
646 }
647
648 static int radeon_uvd_cs_reg(struct radeon_cs_parser *p,
649 struct radeon_cs_packet *pkt,
650 int *data0, int *data1,
651 unsigned buf_sizes[],
652 bool *has_msg_cmd)
653 {
654 int i, r;
655
656 p->idx++;
657 for (i = 0; i <= pkt->count; ++i) {
658 switch (pkt->reg + i*4) {
659 case UVD_GPCOM_VCPU_DATA0:
660 *data0 = p->idx;
661 break;
662 case UVD_GPCOM_VCPU_DATA1:
663 *data1 = p->idx;
664 break;
665 case UVD_GPCOM_VCPU_CMD:
666 r = radeon_uvd_cs_reloc(p, *data0, *data1,
667 buf_sizes, has_msg_cmd);
668 if (r)
669 return r;
670 break;
671 case UVD_ENGINE_CNTL:
672 break;
673 default:
674 DRM_ERROR("Invalid reg 0x%X!\n",
675 pkt->reg + i*4);
676 return -EINVAL;
677 }
678 p->idx++;
679 }
680 return 0;
681 }
682
683 int radeon_uvd_cs_parse(struct radeon_cs_parser *p)
684 {
685 struct radeon_cs_packet pkt;
686 int r, data0 = 0, data1 = 0;
687
688 /* does the IB has a msg command */
689 bool has_msg_cmd = false;
690
691 /* minimum buffer sizes */
692 unsigned buf_sizes[] = {
693 [0x00000000] = 2048,
694 [0x00000001] = 32 * 1024 * 1024,
695 [0x00000002] = 2048 * 1152 * 3,
696 [0x00000003] = 2048,
697 };
698
699 if (p->chunk_ib->length_dw % 16) {
700 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
701 p->chunk_ib->length_dw);
702 return -EINVAL;
703 }
704
705 if (p->chunk_relocs == NULL) {
706 DRM_ERROR("No relocation chunk !\n");
707 return -EINVAL;
708 }
709
710
711 do {
712 r = radeon_cs_packet_parse(p, &pkt, p->idx);
713 if (r)
714 return r;
715 switch (pkt.type) {
716 case RADEON_PACKET_TYPE0:
717 r = radeon_uvd_cs_reg(p, &pkt, &data0, &data1,
718 buf_sizes, &has_msg_cmd);
719 if (r)
720 return r;
721 break;
722 case RADEON_PACKET_TYPE2:
723 p->idx += pkt.count + 2;
724 break;
725 default:
726 DRM_ERROR("Unknown packet type %d !\n", pkt.type);
727 return -EINVAL;
728 }
729 } while (p->idx < p->chunk_ib->length_dw);
730
731 if (!has_msg_cmd) {
732 DRM_ERROR("UVD-IBs need a msg command!\n");
733 return -EINVAL;
734 }
735
736 return 0;
737 }
738
739 static int radeon_uvd_send_msg(struct radeon_device *rdev,
740 int ring, uint64_t addr,
741 struct radeon_fence **fence)
742 {
743 struct radeon_ib ib;
744 int i, r;
745
746 r = radeon_ib_get(rdev, ring, &ib, NULL, 64);
747 if (r)
748 return r;
749
750 ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0);
751 ib.ptr[1] = addr;
752 ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0);
753 ib.ptr[3] = addr >> 32;
754 ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0);
755 ib.ptr[5] = 0;
756 for (i = 6; i < 16; ++i)
757 ib.ptr[i] = PACKET2(0);
758 ib.length_dw = 16;
759
760 r = radeon_ib_schedule(rdev, &ib, NULL, false);
761
762 if (fence)
763 *fence = radeon_fence_ref(ib.fence);
764
765 radeon_ib_free(rdev, &ib);
766 return r;
767 }
768
769 /*
770 * multiple fence commands without any stream commands in between can
771 * crash the vcpu so just try to emmit a dummy create/destroy msg to
772 * avoid this
773 */
774 int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
775 uint32_t handle, struct radeon_fence **fence)
776 {
777 /* we use the last page of the vcpu bo for the UVD message */
778 uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) -
779 RADEON_GPU_PAGE_SIZE;
780
781 uint32_t *msg = rdev->uvd.cpu_addr + offs;
782 uint64_t addr = rdev->uvd.gpu_addr + offs;
783
784 int r, i;
785
786 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true);
787 if (r)
788 return r;
789
790 /* stitch together an UVD create msg */
791 msg[0] = cpu_to_le32(0x00000de4);
792 msg[1] = cpu_to_le32(0x00000000);
793 msg[2] = cpu_to_le32(handle);
794 msg[3] = cpu_to_le32(0x00000000);
795 msg[4] = cpu_to_le32(0x00000000);
796 msg[5] = cpu_to_le32(0x00000000);
797 msg[6] = cpu_to_le32(0x00000000);
798 msg[7] = cpu_to_le32(0x00000780);
799 msg[8] = cpu_to_le32(0x00000440);
800 msg[9] = cpu_to_le32(0x00000000);
801 msg[10] = cpu_to_le32(0x01b37000);
802 for (i = 11; i < 1024; ++i)
803 msg[i] = cpu_to_le32(0x0);
804
805 r = radeon_uvd_send_msg(rdev, ring, addr, fence);
806 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
807 return r;
808 }
809
810 int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
811 uint32_t handle, struct radeon_fence **fence)
812 {
813 /* we use the last page of the vcpu bo for the UVD message */
814 uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) -
815 RADEON_GPU_PAGE_SIZE;
816
817 uint32_t *msg = rdev->uvd.cpu_addr + offs;
818 uint64_t addr = rdev->uvd.gpu_addr + offs;
819
820 int r, i;
821
822 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true);
823 if (r)
824 return r;
825
826 /* stitch together an UVD destroy msg */
827 msg[0] = cpu_to_le32(0x00000de4);
828 msg[1] = cpu_to_le32(0x00000002);
829 msg[2] = cpu_to_le32(handle);
830 msg[3] = cpu_to_le32(0x00000000);
831 for (i = 4; i < 1024; ++i)
832 msg[i] = cpu_to_le32(0x0);
833
834 r = radeon_uvd_send_msg(rdev, ring, addr, fence);
835 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
836 return r;
837 }
838
839 /**
840 * radeon_uvd_count_handles - count number of open streams
841 *
842 * @rdev: radeon_device pointer
843 * @sd: number of SD streams
844 * @hd: number of HD streams
845 *
846 * Count the number of open SD/HD streams as a hint for power mangement
847 */
848 static void radeon_uvd_count_handles(struct radeon_device *rdev,
849 unsigned *sd, unsigned *hd)
850 {
851 unsigned i;
852
853 *sd = 0;
854 *hd = 0;
855
856 for (i = 0; i < rdev->uvd.max_handles; ++i) {
857 if (!atomic_read(&rdev->uvd.handles[i]))
858 continue;
859
860 if (rdev->uvd.img_size[i] >= 720*576)
861 ++(*hd);
862 else
863 ++(*sd);
864 }
865 }
866
867 static void radeon_uvd_idle_work_handler(struct work_struct *work)
868 {
869 struct radeon_device *rdev =
870 container_of(work, struct radeon_device, uvd.idle_work.work);
871
872 if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) {
873 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
874 radeon_uvd_count_handles(rdev, &rdev->pm.dpm.sd,
875 &rdev->pm.dpm.hd);
876 radeon_dpm_enable_uvd(rdev, false);
877 } else {
878 radeon_set_uvd_clocks(rdev, 0, 0);
879 }
880 } else {
881 schedule_delayed_work(&rdev->uvd.idle_work,
882 msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
883 }
884 }
885
886 void radeon_uvd_note_usage(struct radeon_device *rdev)
887 {
888 bool streams_changed = false;
889 bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work);
890 set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work,
891 msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
892
893 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
894 unsigned hd = 0, sd = 0;
895 radeon_uvd_count_handles(rdev, &sd, &hd);
896 if ((rdev->pm.dpm.sd != sd) ||
897 (rdev->pm.dpm.hd != hd)) {
898 rdev->pm.dpm.sd = sd;
899 rdev->pm.dpm.hd = hd;
900 /* disable this for now */
901 /*streams_changed = true;*/
902 }
903 }
904
905 if (set_clocks || streams_changed) {
906 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
907 radeon_dpm_enable_uvd(rdev, true);
908 } else {
909 radeon_set_uvd_clocks(rdev, 53300, 40000);
910 }
911 }
912 }
913
914 static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq,
915 unsigned target_freq,
916 unsigned pd_min,
917 unsigned pd_even)
918 {
919 unsigned post_div = vco_freq / target_freq;
920
921 /* adjust to post divider minimum value */
922 if (post_div < pd_min)
923 post_div = pd_min;
924
925 /* we alway need a frequency less than or equal the target */
926 if ((vco_freq / post_div) > target_freq)
927 post_div += 1;
928
929 /* post dividers above a certain value must be even */
930 if (post_div > pd_even && post_div % 2)
931 post_div += 1;
932
933 return post_div;
934 }
935
936 /**
937 * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers
938 *
939 * @rdev: radeon_device pointer
940 * @vclk: wanted VCLK
941 * @dclk: wanted DCLK
942 * @vco_min: minimum VCO frequency
943 * @vco_max: maximum VCO frequency
944 * @fb_factor: factor to multiply vco freq with
945 * @fb_mask: limit and bitmask for feedback divider
946 * @pd_min: post divider minimum
947 * @pd_max: post divider maximum
948 * @pd_even: post divider must be even above this value
949 * @optimal_fb_div: resulting feedback divider
950 * @optimal_vclk_div: resulting vclk post divider
951 * @optimal_dclk_div: resulting dclk post divider
952 *
953 * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
954 * Returns zero on success -EINVAL on error.
955 */
956 int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev,
957 unsigned vclk, unsigned dclk,
958 unsigned vco_min, unsigned vco_max,
959 unsigned fb_factor, unsigned fb_mask,
960 unsigned pd_min, unsigned pd_max,
961 unsigned pd_even,
962 unsigned *optimal_fb_div,
963 unsigned *optimal_vclk_div,
964 unsigned *optimal_dclk_div)
965 {
966 unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq;
967
968 /* start off with something large */
969 unsigned optimal_score = ~0;
970
971 /* loop through vco from low to high */
972 vco_min = max(max(vco_min, vclk), dclk);
973 for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
974
975 uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
976 unsigned vclk_div, dclk_div, score;
977
978 do_div(fb_div, ref_freq);
979
980 /* fb div out of range ? */
981 if (fb_div > fb_mask)
982 break; /* it can oly get worse */
983
984 fb_div &= fb_mask;
985
986 /* calc vclk divider with current vco freq */
987 vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk,
988 pd_min, pd_even);
989 if (vclk_div > pd_max)
990 break; /* vco is too big, it has to stop */
991
992 /* calc dclk divider with current vco freq */
993 dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk,
994 pd_min, pd_even);
995 if (vclk_div > pd_max)
996 break; /* vco is too big, it has to stop */
997
998 /* calc score with current vco freq */
999 score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
1000
1001 /* determine if this vco setting is better than current optimal settings */
1002 if (score < optimal_score) {
1003 *optimal_fb_div = fb_div;
1004 *optimal_vclk_div = vclk_div;
1005 *optimal_dclk_div = dclk_div;
1006 optimal_score = score;
1007 if (optimal_score == 0)
1008 break; /* it can't get better than this */
1009 }
1010 }
1011
1012 /* did we found a valid setup ? */
1013 if (optimal_score == ~0)
1014 return -EINVAL;
1015
1016 return 0;
1017 }
1018
1019 int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
1020 unsigned cg_upll_func_cntl)
1021 {
1022 unsigned i;
1023
1024 /* make sure UPLL_CTLREQ is deasserted */
1025 WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
1026
1027 mdelay(10);
1028
1029 /* assert UPLL_CTLREQ */
1030 WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
1031
1032 /* wait for CTLACK and CTLACK2 to get asserted */
1033 for (i = 0; i < 100; ++i) {
1034 uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
1035 if ((RREG32(cg_upll_func_cntl) & mask) == mask)
1036 break;
1037 mdelay(10);
1038 }
1039
1040 /* deassert UPLL_CTLREQ */
1041 WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
1042
1043 if (i == 100) {
1044 DRM_ERROR("Timeout setting UVD clocks!\n");
1045 return -ETIMEDOUT;
1046 }
1047
1048 return 0;
1049 }
Linux kernel - Deliverables
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