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drm/linux: Improve request_firmware() compatibility
[dragonfly.git] / sys / dev / drm / radeon / radeon_uvd.c
blob096420f9d85a9465887d6e0bc0e6bc8b3876d6c4
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
35 #include "radeon.h"
36 #include "r600d.h"
37
38 /* 1 second timeout */
39 #define UVD_IDLE_TIMEOUT_MS 1000
40
41 /* Firmware Names */
42 #define FIRMWARE_R600 "radeonkmsfw_R600_uvd"
43 #define FIRMWARE_RS780 "radeonkmsfw_RS780_uvd"
44 #define FIRMWARE_RV770 "radeonkmsfw_RV770_uvd"
45 #define FIRMWARE_RV710 "radeonkmsfw_RV710_uvd"
46 #define FIRMWARE_CYPRESS "radeonkmsfw_CYPRESS_uvd"
47 #define FIRMWARE_SUMO "radeonkmsfw_SUMO_uvd"
48 #define FIRMWARE_TAHITI "radeonkmsfw_TAHITI_uvd"
49 #define FIRMWARE_BONAIRE "radeonkmsfw_BONAIRE_uvd"
50
51 MODULE_FIRMWARE(FIRMWARE_R600);
52 MODULE_FIRMWARE(FIRMWARE_RS780);
53 MODULE_FIRMWARE(FIRMWARE_RV770);
54 MODULE_FIRMWARE(FIRMWARE_RV710);
55 MODULE_FIRMWARE(FIRMWARE_CYPRESS);
56 MODULE_FIRMWARE(FIRMWARE_SUMO);
57 MODULE_FIRMWARE(FIRMWARE_TAHITI);
58 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
59
60 static void radeon_uvd_idle_work_handler(struct work_struct *work);
61
62 int radeon_uvd_init(struct radeon_device *rdev)
63 {
64 unsigned long bo_size;
65 const char *fw_name;
66 int i, r;
67
68 INIT_DELAYED_WORK(&rdev->uvd.idle_work, radeon_uvd_idle_work_handler);
69
70 switch (rdev->family) {
71 case CHIP_RV610:
72 case CHIP_RV630:
73 case CHIP_RV670:
74 case CHIP_RV620:
75 case CHIP_RV635:
76 fw_name = FIRMWARE_R600;
77 break;
78
79 case CHIP_RS780:
80 case CHIP_RS880:
81 fw_name = FIRMWARE_RS780;
82 break;
83
84 case CHIP_RV770:
85 fw_name = FIRMWARE_RV770;
86 break;
87
88 case CHIP_RV710:
89 case CHIP_RV730:
90 case CHIP_RV740:
91 fw_name = FIRMWARE_RV710;
92 break;
93
94 case CHIP_CYPRESS:
95 case CHIP_HEMLOCK:
96 case CHIP_JUNIPER:
97 case CHIP_REDWOOD:
98 case CHIP_CEDAR:
99 fw_name = FIRMWARE_CYPRESS;
100 break;
101
102 case CHIP_SUMO:
103 case CHIP_SUMO2:
104 case CHIP_PALM:
105 case CHIP_CAYMAN:
106 case CHIP_BARTS:
107 case CHIP_TURKS:
108 case CHIP_CAICOS:
109 fw_name = FIRMWARE_SUMO;
110 break;
111
112 case CHIP_TAHITI:
113 case CHIP_VERDE:
114 case CHIP_PITCAIRN:
115 case CHIP_ARUBA:
116 case CHIP_OLAND:
117 fw_name = FIRMWARE_TAHITI;
118 break;
119
120 case CHIP_BONAIRE:
121 case CHIP_KABINI:
122 case CHIP_KAVERI:
123 case CHIP_HAWAII:
124 case CHIP_MULLINS:
125 fw_name = FIRMWARE_BONAIRE;
126 break;
127
128 default:
129 return -EINVAL;
130 }
131
132 r = request_firmware(&rdev->uvd_fw, fw_name, rdev->dev);
133 if (r) {
134 dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
135 fw_name);
136 return r;
137 }
138
139 bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->datasize + 8) +
140 RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE +
141 RADEON_GPU_PAGE_SIZE;
142 r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true,
143 RADEON_GEM_DOMAIN_VRAM, 0, NULL, &rdev->uvd.vcpu_bo);
144 if (r) {
145 dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r);
146 return r;
147 }
148
149 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
150 if (r) {
151 radeon_bo_unref(&rdev->uvd.vcpu_bo);
152 dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r);
153 return r;
154 }
155
156 r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
157 &rdev->uvd.gpu_addr);
158 if (r) {
159 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
160 radeon_bo_unref(&rdev->uvd.vcpu_bo);
161 dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r);
162 return r;
163 }
164
165 r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
166 if (r) {
167 dev_err(rdev->dev, "(%d) UVD map failed\n", r);
168 return r;
169 }
170
171 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
172
173 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
174 atomic_set(&rdev->uvd.handles[i], 0);
175 rdev->uvd.filp[i] = NULL;
176 rdev->uvd.img_size[i] = 0;
177 }
178
179 return 0;
180 }
181
182 void radeon_uvd_fini(struct radeon_device *rdev)
183 {
184 int r;
185
186 if (rdev->uvd.vcpu_bo == NULL)
187 return;
188
189 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
190 if (!r) {
191 radeon_bo_kunmap(rdev->uvd.vcpu_bo);
192 radeon_bo_unpin(rdev->uvd.vcpu_bo);
193 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
194 }
195
196 radeon_bo_unref(&rdev->uvd.vcpu_bo);
197
198 radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX]);
199
200 release_firmware(rdev->uvd_fw);
201 }
202
203 int radeon_uvd_suspend(struct radeon_device *rdev)
204 {
205 unsigned size;
206 char *ptr;
207 int i;
208
209 if (rdev->uvd.vcpu_bo == NULL)
210 return 0;
211
212 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
213 if (atomic_read(&rdev->uvd.handles[i]))
214 break;
215
216 if (i == RADEON_MAX_UVD_HANDLES)
217 return 0;
218
219 size = radeon_bo_size(rdev->uvd.vcpu_bo);
220 size -= rdev->uvd_fw->datasize;
221
222 ptr = rdev->uvd.cpu_addr;
223 ptr += rdev->uvd_fw->datasize;
224
225 rdev->uvd.saved_bo = kmalloc(size, M_DRM, M_WAITOK);
226 memcpy(rdev->uvd.saved_bo, ptr, size);
227
228 return 0;
229 }
230
231 int radeon_uvd_resume(struct radeon_device *rdev)
232 {
233 unsigned size;
234 char *ptr;
235
236 if (rdev->uvd.vcpu_bo == NULL)
237 return -EINVAL;
238
239 memcpy(rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->datasize);
240
241 size = radeon_bo_size(rdev->uvd.vcpu_bo);
242 size -= rdev->uvd_fw->datasize;
243
244 ptr = rdev->uvd.cpu_addr;
245 ptr += rdev->uvd_fw->datasize;
246
247 if (rdev->uvd.saved_bo != NULL) {
248 memcpy(ptr, rdev->uvd.saved_bo, size);
249 kfree(rdev->uvd.saved_bo);
250 rdev->uvd.saved_bo = NULL;
251 } else
252 memset(ptr, 0, size);
253
254 return 0;
255 }
256
257 void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo,
258 uint32_t allowed_domains)
259 {
260 int i;
261
262 for (i = 0; i < rbo->placement.num_placement; ++i) {
263 rbo->placements[i].fpfn = 0 >> PAGE_SHIFT;
264 rbo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
265 }
266
267 /* If it must be in VRAM it must be in the first segment as well */
268 if (allowed_domains == RADEON_GEM_DOMAIN_VRAM)
269 return;
270
271 /* abort if we already have more than one placement */
272 if (rbo->placement.num_placement > 1)
273 return;
274
275 /* add another 256MB segment */
276 rbo->placements[1] = rbo->placements[0];
277 rbo->placements[1].fpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
278 rbo->placements[1].lpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
279 rbo->placement.num_placement++;
280 rbo->placement.num_busy_placement++;
281 }
282
283 void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
284 {
285 int i, r;
286 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
287 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
288 if (handle != 0 && rdev->uvd.filp[i] == filp) {
289 struct radeon_fence *fence;
290
291 radeon_uvd_note_usage(rdev);
292
293 r = radeon_uvd_get_destroy_msg(rdev,
294 R600_RING_TYPE_UVD_INDEX, handle, &fence);
295 if (r) {
296 DRM_ERROR("Error destroying UVD (%d)!\n", r);
297 continue;
298 }
299
300 radeon_fence_wait(fence, false);
301 radeon_fence_unref(&fence);
302
303 rdev->uvd.filp[i] = NULL;
304 atomic_set(&rdev->uvd.handles[i], 0);
305 }
306 }
307 }
308
309 static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
310 {
311 unsigned stream_type = msg[4];
312 unsigned width = msg[6];
313 unsigned height = msg[7];
314 unsigned dpb_size = msg[9];
315 unsigned pitch = msg[28];
316
317 unsigned width_in_mb = width / 16;
318 unsigned height_in_mb = ALIGN(height / 16, 2);
319
320 unsigned image_size, tmp, min_dpb_size;
321
322 image_size = width * height;
323 image_size += image_size / 2;
324 image_size = ALIGN(image_size, 1024);
325
326 switch (stream_type) {
327 case 0: /* H264 */
328
329 /* reference picture buffer */
330 min_dpb_size = image_size * 17;
331
332 /* macroblock context buffer */
333 min_dpb_size += width_in_mb * height_in_mb * 17 * 192;
334
335 /* IT surface buffer */
336 min_dpb_size += width_in_mb * height_in_mb * 32;
337 break;
338
339 case 1: /* VC1 */
340
341 /* reference picture buffer */
342 min_dpb_size = image_size * 3;
343
344 /* CONTEXT_BUFFER */
345 min_dpb_size += width_in_mb * height_in_mb * 128;
346
347 /* IT surface buffer */
348 min_dpb_size += width_in_mb * 64;
349
350 /* DB surface buffer */
351 min_dpb_size += width_in_mb * 128;
352
353 /* BP */
354 tmp = max(width_in_mb, height_in_mb);
355 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
356 break;
357
358 case 3: /* MPEG2 */
359
360 /* reference picture buffer */
361 min_dpb_size = image_size * 3;
362 break;
363
364 case 4: /* MPEG4 */
365
366 /* reference picture buffer */
367 min_dpb_size = image_size * 3;
368
369 /* CM */
370 min_dpb_size += width_in_mb * height_in_mb * 64;
371
372 /* IT surface buffer */
373 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
374 break;
375
376 default:
377 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
378 return -EINVAL;
379 }
380
381 if (width > pitch) {
382 DRM_ERROR("Invalid UVD decoding target pitch!\n");
383 return -EINVAL;
384 }
385
386 if (dpb_size < min_dpb_size) {
387 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
388 dpb_size, min_dpb_size);
389 return -EINVAL;
390 }
391
392 buf_sizes[0x1] = dpb_size;
393 buf_sizes[0x2] = image_size;
394 return 0;
395 }
396
397 static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
398 unsigned offset, unsigned buf_sizes[])
399 {
400 int32_t *msg, msg_type, handle;
401 unsigned img_size = 0;
402 void *ptr;
403
404 int i, r;
405
406 if (offset & 0x3F) {
407 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
408 return -EINVAL;
409 }
410
411 if (bo->tbo.sync_obj) {
412 r = radeon_fence_wait(bo->tbo.sync_obj, false);
413 if (r) {
414 DRM_ERROR("Failed waiting for UVD message (%d)!\n", r);
415 return r;
416 }
417 }
418
419 r = radeon_bo_kmap(bo, &ptr);
420 if (r) {
421 DRM_ERROR("Failed mapping the UVD message (%d)!\n", r);
422 return r;
423 }
424
425 msg = (uint32_t*)((uint8_t*)ptr + offset);
426
427 msg_type = msg[1];
428 handle = msg[2];
429
430 if (handle == 0) {
431 DRM_ERROR("Invalid UVD handle!\n");
432 return -EINVAL;
433 }
434
435 if (msg_type == 1) {
436 /* it's a decode msg, calc buffer sizes */
437 r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
438 /* calc image size (width * height) */
439 img_size = msg[6] * msg[7];
440 radeon_bo_kunmap(bo);
441 if (r)
442 return r;
443
444 } else if (msg_type == 2) {
445 /* it's a destroy msg, free the handle */
446 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
447 atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0);
448 radeon_bo_kunmap(bo);
449 return 0;
450 } else {
451 /* it's a create msg, calc image size (width * height) */
452 img_size = msg[7] * msg[8];
453 radeon_bo_kunmap(bo);
454
455 if (msg_type != 0) {
456 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
457 return -EINVAL;
458 }
459
460 /* it's a create msg, no special handling needed */
461 }
462
463 /* create or decode, validate the handle */
464 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
465 if (atomic_read(&p->rdev->uvd.handles[i]) == handle)
466 return 0;
467 }
468
469 /* handle not found try to alloc a new one */
470 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
471 if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
472 p->rdev->uvd.filp[i] = p->filp;
473 p->rdev->uvd.img_size[i] = img_size;
474 return 0;
475 }
476 }
477
478 DRM_ERROR("No more free UVD handles!\n");
479 return -EINVAL;
480 }
481
482 static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
483 int data0, int data1,
484 unsigned buf_sizes[], bool *has_msg_cmd)
485 {
486 struct radeon_cs_chunk *relocs_chunk;
487 struct radeon_cs_reloc *reloc;
488 unsigned idx, cmd, offset;
489 uint64_t start, end;
490 int r;
491
492 relocs_chunk = &p->chunks[p->chunk_relocs_idx];
493 offset = radeon_get_ib_value(p, data0);
494 idx = radeon_get_ib_value(p, data1);
495 if (idx >= relocs_chunk->length_dw) {
496 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
497 idx, relocs_chunk->length_dw);
498 return -EINVAL;
499 }
500
501 reloc = p->relocs_ptr[(idx / 4)];
502 start = reloc->gpu_offset;
503 end = start + radeon_bo_size(reloc->robj);
504 start += offset;
505
506 p->ib.ptr[data0] = start & 0xFFFFFFFF;
507 p->ib.ptr[data1] = start >> 32;
508
509 cmd = radeon_get_ib_value(p, p->idx) >> 1;
510
511 if (cmd < 0x4) {
512 if (end <= start) {
513 DRM_ERROR("invalid reloc offset %X!\n", offset);
514 return -EINVAL;
515 }
516 if ((end - start) < buf_sizes[cmd]) {
517 DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
518 (unsigned)(end - start), buf_sizes[cmd]);
519 return -EINVAL;
520 }
521
522 } else if (cmd != 0x100) {
523 DRM_ERROR("invalid UVD command %X!\n", cmd);
524 return -EINVAL;
525 }
526
527 if ((start >> 28) != ((end - 1) >> 28)) {
528 DRM_ERROR("reloc %lX-%lX crossing 256MB boundary!\n",
529 start, end);
530 return -EINVAL;
531 }
532
533 /* TODO: is this still necessary on NI+ ? */
534 if ((cmd == 0 || cmd == 0x3) &&
535 (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
536 DRM_ERROR("msg/fb buffer %lX-%lX out of 256MB segment!\n",
537 start, end);
538 return -EINVAL;
539 }
540
541 if (cmd == 0) {
542 if (*has_msg_cmd) {
543 DRM_ERROR("More than one message in a UVD-IB!\n");
544 return -EINVAL;
545 }
546 *has_msg_cmd = true;
547 r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
548 if (r)
549 return r;
550 } else if (!*has_msg_cmd) {
551 DRM_ERROR("Message needed before other commands are send!\n");
552 return -EINVAL;
553 }
554
555 return 0;
556 }
557
558 static int radeon_uvd_cs_reg(struct radeon_cs_parser *p,
559 struct radeon_cs_packet *pkt,
560 int *data0, int *data1,
561 unsigned buf_sizes[],
562 bool *has_msg_cmd)
563 {
564 int i, r;
565
566 p->idx++;
567 for (i = 0; i <= pkt->count; ++i) {
568 switch (pkt->reg + i*4) {
569 case UVD_GPCOM_VCPU_DATA0:
570 *data0 = p->idx;
571 break;
572 case UVD_GPCOM_VCPU_DATA1:
573 *data1 = p->idx;
574 break;
575 case UVD_GPCOM_VCPU_CMD:
576 r = radeon_uvd_cs_reloc(p, *data0, *data1,
577 buf_sizes, has_msg_cmd);
578 if (r)
579 return r;
580 break;
581 case UVD_ENGINE_CNTL:
582 break;
583 default:
584 DRM_ERROR("Invalid reg 0x%X!\n",
585 pkt->reg + i*4);
586 return -EINVAL;
587 }
588 p->idx++;
589 }
590 return 0;
591 }
592
593 int radeon_uvd_cs_parse(struct radeon_cs_parser *p)
594 {
595 struct radeon_cs_packet pkt;
596 int r, data0 = 0, data1 = 0;
597
598 /* does the IB has a msg command */
599 bool has_msg_cmd = false;
600
601 /* minimum buffer sizes */
602 unsigned buf_sizes[] = {
603 [0x00000000] = 2048,
604 [0x00000001] = 32 * 1024 * 1024,
605 [0x00000002] = 2048 * 1152 * 3,
606 [0x00000003] = 2048,
607 };
608
609 if (p->chunks[p->chunk_ib_idx].length_dw % 16) {
610 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
611 p->chunks[p->chunk_ib_idx].length_dw);
612 return -EINVAL;
613 }
614
615 if (p->chunk_relocs_idx == -1) {
616 DRM_ERROR("No relocation chunk !\n");
617 return -EINVAL;
618 }
619
620
621 do {
622 r = radeon_cs_packet_parse(p, &pkt, p->idx);
623 if (r)
624 return r;
625 switch (pkt.type) {
626 case RADEON_PACKET_TYPE0:
627 r = radeon_uvd_cs_reg(p, &pkt, &data0, &data1,
628 buf_sizes, &has_msg_cmd);
629 if (r)
630 return r;
631 break;
632 case RADEON_PACKET_TYPE2:
633 p->idx += pkt.count + 2;
634 break;
635 default:
636 DRM_ERROR("Unknown packet type %d !\n", pkt.type);
637 return -EINVAL;
638 }
639 } while (p->idx < p->chunks[p->chunk_ib_idx].length_dw);
640
641 if (!has_msg_cmd) {
642 DRM_ERROR("UVD-IBs need a msg command!\n");
643 return -EINVAL;
644 }
645
646 return 0;
647 }
648
649 static int radeon_uvd_send_msg(struct radeon_device *rdev,
650 int ring, uint64_t addr,
651 struct radeon_fence **fence)
652 {
653 struct radeon_ib ib;
654 int i, r;
655
656 r = radeon_ib_get(rdev, ring, &ib, NULL, 64);
657 if (r)
658 return r;
659
660 ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0);
661 ib.ptr[1] = addr;
662 ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0);
663 ib.ptr[3] = addr >> 32;
664 ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0);
665 ib.ptr[5] = 0;
666 for (i = 6; i < 16; ++i)
667 ib.ptr[i] = PACKET2(0);
668 ib.length_dw = 16;
669
670 r = radeon_ib_schedule(rdev, &ib, NULL, false);
671
672 if (fence)
673 *fence = radeon_fence_ref(ib.fence);
674
675 radeon_ib_free(rdev, &ib);
676 return r;
677 }
678
679 /* multiple fence commands without any stream commands in between can
680 crash the vcpu so just try to emmit a dummy create/destroy msg to
681 avoid this */
682 int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
683 uint32_t handle, struct radeon_fence **fence)
684 {
685 /* we use the last page of the vcpu bo for the UVD message */
686 uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) -
687 RADEON_GPU_PAGE_SIZE;
688
689 uint32_t *msg = (uint32_t*)((uint8_t*)rdev->uvd.cpu_addr + offs);
690 uint64_t addr = rdev->uvd.gpu_addr + offs;
691
692 int r, i;
693
694 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true);
695 if (r)
696 return r;
697
698 /* stitch together an UVD create msg */
699 msg[0] = cpu_to_le32(0x00000de4);
700 msg[1] = cpu_to_le32(0x00000000);
701 msg[2] = cpu_to_le32(handle);
702 msg[3] = cpu_to_le32(0x00000000);
703 msg[4] = cpu_to_le32(0x00000000);
704 msg[5] = cpu_to_le32(0x00000000);
705 msg[6] = cpu_to_le32(0x00000000);
706 msg[7] = cpu_to_le32(0x00000780);
707 msg[8] = cpu_to_le32(0x00000440);
708 msg[9] = cpu_to_le32(0x00000000);
709 msg[10] = cpu_to_le32(0x01b37000);
710 for (i = 11; i < 1024; ++i)
711 msg[i] = cpu_to_le32(0x0);
712
713 r = radeon_uvd_send_msg(rdev, ring, addr, fence);
714 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
715 return r;
716 }
717
718 int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
719 uint32_t handle, struct radeon_fence **fence)
720 {
721 /* we use the last page of the vcpu bo for the UVD message */
722 uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) -
723 RADEON_GPU_PAGE_SIZE;
724
725 uint32_t *msg = (uint32_t*)((uint8_t*)rdev->uvd.cpu_addr + offs);
726 uint64_t addr = rdev->uvd.gpu_addr + offs;
727
728 int r, i;
729
730 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true);
731 if (r)
732 return r;
733
734 /* stitch together an UVD destroy msg */
735 msg[0] = cpu_to_le32(0x00000de4);
736 msg[1] = cpu_to_le32(0x00000002);
737 msg[2] = cpu_to_le32(handle);
738 msg[3] = cpu_to_le32(0x00000000);
739 for (i = 4; i < 1024; ++i)
740 msg[i] = cpu_to_le32(0x0);
741
742 r = radeon_uvd_send_msg(rdev, ring, addr, fence);
743 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
744 return r;
745 }
746
747 /**
748 * radeon_uvd_count_handles - count number of open streams
749 *
750 * @rdev: radeon_device pointer
751 * @sd: number of SD streams
752 * @hd: number of HD streams
753 *
754 * Count the number of open SD/HD streams as a hint for power mangement
755 */
756 static void radeon_uvd_count_handles(struct radeon_device *rdev,
757 unsigned *sd, unsigned *hd)
758 {
759 unsigned i;
760
761 *sd = 0;
762 *hd = 0;
763
764 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
765 if (!atomic_read(&rdev->uvd.handles[i]))
766 continue;
767
768 if (rdev->uvd.img_size[i] >= 720*576)
769 ++(*hd);
770 else
771 ++(*sd);
772 }
773 }
774
775 static void radeon_uvd_idle_work_handler(struct work_struct *work)
776 {
777 struct radeon_device *rdev =
778 container_of(work, struct radeon_device, uvd.idle_work.work);
779
780 if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) {
781 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
782 radeon_uvd_count_handles(rdev, &rdev->pm.dpm.sd,
783 &rdev->pm.dpm.hd);
784 radeon_dpm_enable_uvd(rdev, false);
785 } else {
786 radeon_set_uvd_clocks(rdev, 0, 0);
787 }
788 } else {
789 schedule_delayed_work(&rdev->uvd.idle_work,
790 msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
791 }
792 }
793
794 void radeon_uvd_note_usage(struct radeon_device *rdev)
795 {
796 bool streams_changed = false;
797 bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work);
798 set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work,
799 msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
800
801 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
802 unsigned hd = 0, sd = 0;
803 radeon_uvd_count_handles(rdev, &sd, &hd);
804 if ((rdev->pm.dpm.sd != sd) ||
805 (rdev->pm.dpm.hd != hd)) {
806 rdev->pm.dpm.sd = sd;
807 rdev->pm.dpm.hd = hd;
808 /* disable this for now */
809 /*streams_changed = true;*/
810 }
811 }
812
813 if (set_clocks || streams_changed) {
814 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
815 radeon_dpm_enable_uvd(rdev, true);
816 } else {
817 radeon_set_uvd_clocks(rdev, 53300, 40000);
818 }
819 }
820 }
821
822 static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq,
823 unsigned target_freq,
824 unsigned pd_min,
825 unsigned pd_even)
826 {
827 unsigned post_div = vco_freq / target_freq;
828
829 /* adjust to post divider minimum value */
830 if (post_div < pd_min)
831 post_div = pd_min;
832
833 /* we alway need a frequency less than or equal the target */
834 if ((vco_freq / post_div) > target_freq)
835 post_div += 1;
836
837 /* post dividers above a certain value must be even */
838 if (post_div > pd_even && post_div % 2)
839 post_div += 1;
840
841 return post_div;
842 }
843
844 /**
845 * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers
846 *
847 * @rdev: radeon_device pointer
848 * @vclk: wanted VCLK
849 * @dclk: wanted DCLK
850 * @vco_min: minimum VCO frequency
851 * @vco_max: maximum VCO frequency
852 * @fb_factor: factor to multiply vco freq with
853 * @fb_mask: limit and bitmask for feedback divider
854 * @pd_min: post divider minimum
855 * @pd_max: post divider maximum
856 * @pd_even: post divider must be even above this value
857 * @optimal_fb_div: resulting feedback divider
858 * @optimal_vclk_div: resulting vclk post divider
859 * @optimal_dclk_div: resulting dclk post divider
860 *
861 * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
862 * Returns zero on success -EINVAL on error.
863 */
864 int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev,
865 unsigned vclk, unsigned dclk,
866 unsigned vco_min, unsigned vco_max,
867 unsigned fb_factor, unsigned fb_mask,
868 unsigned pd_min, unsigned pd_max,
869 unsigned pd_even,
870 unsigned *optimal_fb_div,
871 unsigned *optimal_vclk_div,
872 unsigned *optimal_dclk_div)
873 {
874 unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq;
875
876 /* start off with something large */
877 unsigned optimal_score = ~0;
878
879 /* loop through vco from low to high */
880 vco_min = max(max(vco_min, vclk), dclk);
881 for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
882
883 uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
884 unsigned vclk_div, dclk_div, score;
885
886 do_div(fb_div, ref_freq);
887
888 /* fb div out of range ? */
889 if (fb_div > fb_mask)
890 break; /* it can oly get worse */
891
892 fb_div &= fb_mask;
893
894 /* calc vclk divider with current vco freq */
895 vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk,
896 pd_min, pd_even);
897 if (vclk_div > pd_max)
898 break; /* vco is too big, it has to stop */
899
900 /* calc dclk divider with current vco freq */
901 dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk,
902 pd_min, pd_even);
903 if (vclk_div > pd_max)
904 break; /* vco is too big, it has to stop */
905
906 /* calc score with current vco freq */
907 score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
908
909 /* determine if this vco setting is better than current optimal settings */
910 if (score < optimal_score) {
911 *optimal_fb_div = fb_div;
912 *optimal_vclk_div = vclk_div;
913 *optimal_dclk_div = dclk_div;
914 optimal_score = score;
915 if (optimal_score == 0)
916 break; /* it can't get better than this */
917 }
918 }
919
920 /* did we found a valid setup ? */
921 if (optimal_score == ~0)
922 return -EINVAL;
923
924 return 0;
925 }
926
927 int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
928 unsigned cg_upll_func_cntl)
929 {
930 unsigned i;
931
932 /* make sure UPLL_CTLREQ is deasserted */
933 WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
934
935 mdelay(10);
936
937 /* assert UPLL_CTLREQ */
938 WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
939
940 /* wait for CTLACK and CTLACK2 to get asserted */
941 for (i = 0; i < 100; ++i) {
942 uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
943 if ((RREG32(cg_upll_func_cntl) & mask) == mask)
944 break;
945 mdelay(10);
946 }
947
948 /* deassert UPLL_CTLREQ */
949 WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
950
951 if (i == 100) {
952 DRM_ERROR("Timeout setting UVD clocks!\n");
953 return -ETIMEDOUT;
954 }
955
956 return 0;
957 }
DragonFly BSD