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drm/radeon: fix write back suspend regression with uvd v2
[linux-2.6-block.git] / drivers / gpu / drm / radeon / radeon_uvd.c
CommitLineData
f2ba57b5
CK		 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 "r600d.h"
38
55b51c88
CK		 39/* 1 second timeout */
40#define UVD_IDLE_TIMEOUT_MS 1000
41
f2ba57b5
CK		 42/* Firmware Names */
43#define FIRMWARE_RV710 "radeon/RV710_uvd.bin"
44#define FIRMWARE_CYPRESS "radeon/CYPRESS_uvd.bin"
45#define FIRMWARE_SUMO "radeon/SUMO_uvd.bin"
46#define FIRMWARE_TAHITI "radeon/TAHITI_uvd.bin"
47
48MODULE_FIRMWARE(FIRMWARE_RV710);
49MODULE_FIRMWARE(FIRMWARE_CYPRESS);
50MODULE_FIRMWARE(FIRMWARE_SUMO);
51MODULE_FIRMWARE(FIRMWARE_TAHITI);
52
55b51c88
CK		 53static void radeon_uvd_idle_work_handler(struct work_struct *work);
54
f2ba57b5
CK		 55int radeon_uvd_init(struct radeon_device *rdev)
56{
57 struct platform_device *pdev;
58 unsigned long bo_size;
59 const char *fw_name;
60 int i, r;
61
55b51c88
CK		 62 INIT_DELAYED_WORK(&rdev->uvd.idle_work, radeon_uvd_idle_work_handler);
63
f2ba57b5
CK		 64 pdev = platform_device_register_simple("radeon_uvd", 0, NULL, 0);
65 r = IS_ERR(pdev);
66 if (r) {
67 dev_err(rdev->dev, "radeon_uvd: Failed to register firmware\n");
68 return -EINVAL;
69 }
70
71 switch (rdev->family) {
72 case CHIP_RV710:
73 case CHIP_RV730:
74 case CHIP_RV740:
75 fw_name = FIRMWARE_RV710;
76 break;
77
78 case CHIP_CYPRESS:
79 case CHIP_HEMLOCK:
80 case CHIP_JUNIPER:
81 case CHIP_REDWOOD:
82 case CHIP_CEDAR:
83 fw_name = FIRMWARE_CYPRESS;
84 break;
85
86 case CHIP_SUMO:
87 case CHIP_SUMO2:
88 case CHIP_PALM:
89 case CHIP_CAYMAN:
90 case CHIP_BARTS:
91 case CHIP_TURKS:
92 case CHIP_CAICOS:
93 fw_name = FIRMWARE_SUMO;
94 break;
95
96 case CHIP_TAHITI:
97 case CHIP_VERDE:
98 case CHIP_PITCAIRN:
99 case CHIP_ARUBA:
100 fw_name = FIRMWARE_TAHITI;
101 break;
102
103 default:
104 return -EINVAL;
105 }
106
107 r = request_firmware(&rdev->uvd_fw, fw_name, &pdev->dev);
108 if (r) {
109 dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
110 fw_name);
111 platform_device_unregister(pdev);
112 return r;
113 }
114
115 platform_device_unregister(pdev);
116
d7c605a2 117 bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 8) +
f2ba57b5
CK		 118 RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE;
119 r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true,
120 RADEON_GEM_DOMAIN_VRAM, NULL, &rdev->uvd.vcpu_bo);
121 if (r) {
122 dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r);
123 return r;
124 }
125
126 r = radeon_uvd_resume(rdev);
127 if (r)
128 return r;
129
130 memset(rdev->uvd.cpu_addr, 0, bo_size);
131 memcpy(rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->size);
132
133 r = radeon_uvd_suspend(rdev);
134 if (r)
135 return r;
136
137 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
138 atomic_set(&rdev->uvd.handles[i], 0);
139 rdev->uvd.filp[i] = NULL;
140 }
141
142 return 0;
143}
144
145void radeon_uvd_fini(struct radeon_device *rdev)
146{
147 radeon_uvd_suspend(rdev);
148 radeon_bo_unref(&rdev->uvd.vcpu_bo);
149}
150
151int radeon_uvd_suspend(struct radeon_device *rdev)
152{
153 int r;
154
155 if (rdev->uvd.vcpu_bo == NULL)
156 return 0;
157
158 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
159 if (!r) {
160 radeon_bo_kunmap(rdev->uvd.vcpu_bo);
161 radeon_bo_unpin(rdev->uvd.vcpu_bo);
089920f2
JG		 162 rdev->uvd.cpu_addr = NULL;
163 if (!radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_CPU, NULL)) {
164 radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
165 }
f2ba57b5 166 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
089920f2
JG		 167
168 if (rdev->uvd.cpu_addr) {
169 radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_UVD_INDEX);
170 } else {
171 rdev->fence_drv[R600_RING_TYPE_UVD_INDEX].cpu_addr = NULL;
172 }
f2ba57b5
CK		 173 }
174 return r;
175}
176
177int radeon_uvd_resume(struct radeon_device *rdev)
178{
179 int r;
180
181 if (rdev->uvd.vcpu_bo == NULL)
182 return -EINVAL;
183
184 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
185 if (r) {
186 radeon_bo_unref(&rdev->uvd.vcpu_bo);
187 dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r);
188 return r;
189 }
190
089920f2
JG		 191 /* Have been pin in cpu unmap unpin */
192 radeon_bo_kunmap(rdev->uvd.vcpu_bo);
193 radeon_bo_unpin(rdev->uvd.vcpu_bo);
194
f2ba57b5
CK		 195 r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
196 &rdev->uvd.gpu_addr);
197 if (r) {
198 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
199 radeon_bo_unref(&rdev->uvd.vcpu_bo);
200 dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r);
201 return r;
202 }
203
204 r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
205 if (r) {
206 dev_err(rdev->dev, "(%d) UVD map failed\n", r);
207 return r;
208 }
209
210 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
211
212 return 0;
213}
214
215void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo)
216{
217 rbo->placement.fpfn = 0 >> PAGE_SHIFT;
218 rbo->placement.lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
219}
220
221void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
222{
223 int i, r;
224 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
225 if (rdev->uvd.filp[i] == filp) {
226 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
227 struct radeon_fence *fence;
228
229 r = radeon_uvd_get_destroy_msg(rdev,
230 R600_RING_TYPE_UVD_INDEX, handle, &fence);
231 if (r) {
232 DRM_ERROR("Error destroying UVD (%d)!\n", r);
233 continue;
234 }
235
236 radeon_fence_wait(fence, false);
237 radeon_fence_unref(&fence);
238
239 rdev->uvd.filp[i] = NULL;
240 atomic_set(&rdev->uvd.handles[i], 0);
241 }
242 }
243}
244
245static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
246{
247 unsigned stream_type = msg[4];
248 unsigned width = msg[6];
249 unsigned height = msg[7];
250 unsigned dpb_size = msg[9];
251 unsigned pitch = msg[28];
252
253 unsigned width_in_mb = width / 16;
254 unsigned height_in_mb = ALIGN(height / 16, 2);
255
256 unsigned image_size, tmp, min_dpb_size;
257
258 image_size = width * height;
259 image_size += image_size / 2;
260 image_size = ALIGN(image_size, 1024);
261
262 switch (stream_type) {
263 case 0: /* H264 */
264
265 /* reference picture buffer */
266 min_dpb_size = image_size * 17;
267
268 /* macroblock context buffer */
269 min_dpb_size += width_in_mb * height_in_mb * 17 * 192;
270
271 /* IT surface buffer */
272 min_dpb_size += width_in_mb * height_in_mb * 32;
273 break;
274
275 case 1: /* VC1 */
276
277 /* reference picture buffer */
278 min_dpb_size = image_size * 3;
279
280 /* CONTEXT_BUFFER */
281 min_dpb_size += width_in_mb * height_in_mb * 128;
282
283 /* IT surface buffer */
284 min_dpb_size += width_in_mb * 64;
285
286 /* DB surface buffer */
287 min_dpb_size += width_in_mb * 128;
288
289 /* BP */
290 tmp = max(width_in_mb, height_in_mb);
291 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
292 break;
293
294 case 3: /* MPEG2 */
295
296 /* reference picture buffer */
297 min_dpb_size = image_size * 3;
298 break;
299
300 case 4: /* MPEG4 */
301
302 /* reference picture buffer */
303 min_dpb_size = image_size * 3;
304
305 /* CM */
306 min_dpb_size += width_in_mb * height_in_mb * 64;
307
308 /* IT surface buffer */
309 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
310 break;
311
312 default:
313 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
314 return -EINVAL;
315 }
316
317 if (width > pitch) {
318 DRM_ERROR("Invalid UVD decoding target pitch!\n");
319 return -EINVAL;
320 }
321
322 if (dpb_size < min_dpb_size) {
323 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
324 dpb_size, min_dpb_size);
325 return -EINVAL;
326 }
327
328 buf_sizes[0x1] = dpb_size;
329 buf_sizes[0x2] = image_size;
330 return 0;
331}
332
333static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
334 unsigned offset, unsigned buf_sizes[])
335{
336 int32_t *msg, msg_type, handle;
337 void *ptr;
338
339 int i, r;
340
341 if (offset & 0x3F) {
342 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
343 return -EINVAL;
344 }
345
346 r = radeon_bo_kmap(bo, &ptr);
347 if (r)
348 return r;
349
350 msg = ptr + offset;
351
352 msg_type = msg[1];
353 handle = msg[2];
354
355 if (handle == 0) {
356 DRM_ERROR("Invalid UVD handle!\n");
357 return -EINVAL;
358 }
359
360 if (msg_type == 1) {
361 /* it's a decode msg, calc buffer sizes */
362 r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
363 radeon_bo_kunmap(bo);
364 if (r)
365 return r;
366
367 } else if (msg_type == 2) {
368 /* it's a destroy msg, free the handle */
369 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
370 atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0);
371 radeon_bo_kunmap(bo);
372 return 0;
373 } else {
374 /* it's a create msg, no special handling needed */
375 radeon_bo_kunmap(bo);
376 }
377
378 /* create or decode, validate the handle */
379 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
380 if (atomic_read(&p->rdev->uvd.handles[i]) == handle)
381 return 0;
382 }
383
384 /* handle not found try to alloc a new one */
385 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
386 if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
387 p->rdev->uvd.filp[i] = p->filp;
388 return 0;
389 }
390 }
391
392 DRM_ERROR("No more free UVD handles!\n");
393 return -EINVAL;
394}
395
396static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
397 int data0, int data1,
398 unsigned buf_sizes[])
399{
400 struct radeon_cs_chunk *relocs_chunk;
401 struct radeon_cs_reloc *reloc;
402 unsigned idx, cmd, offset;
403 uint64_t start, end;
404 int r;
405
406 relocs_chunk = &p->chunks[p->chunk_relocs_idx];
407 offset = radeon_get_ib_value(p, data0);
408 idx = radeon_get_ib_value(p, data1);
409 if (idx >= relocs_chunk->length_dw) {
410 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
411 idx, relocs_chunk->length_dw);
412 return -EINVAL;
413 }
414
415 reloc = p->relocs_ptr[(idx / 4)];
416 start = reloc->lobj.gpu_offset;
417 end = start + radeon_bo_size(reloc->robj);
418 start += offset;
419
420 p->ib.ptr[data0] = start & 0xFFFFFFFF;
421 p->ib.ptr[data1] = start >> 32;
422
423 cmd = radeon_get_ib_value(p, p->idx) >> 1;
424
425 if (cmd < 0x4) {
426 if ((end - start) < buf_sizes[cmd]) {
427 DRM_ERROR("buffer to small (%d / %d)!\n",
428 (unsigned)(end - start), buf_sizes[cmd]);
429 return -EINVAL;
430 }
431
432 } else if (cmd != 0x100) {
433 DRM_ERROR("invalid UVD command %X!\n", cmd);
434 return -EINVAL;
435 }
436
a92c7d55
CK		 437 if ((start >> 28) != (end >> 28)) {
438 DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
439 start, end);
440 return -EINVAL;
f2ba57b5
CK		 441 }
442
a92c7d55
CK		 443 /* TODO: is this still necessary on NI+ ? */
444 if ((cmd == 0 || cmd == 0x3) &&
445 (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
446 DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
f2ba57b5
CK		 447 start, end);
448 return -EINVAL;
449 }
450
a92c7d55
CK		 451 if (cmd == 0) {
452 r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
453 if (r)
454 return r;
455 }
456
f2ba57b5
CK		 457 return 0;
458}
459
460static int radeon_uvd_cs_reg(struct radeon_cs_parser *p,
461 struct radeon_cs_packet *pkt,
462 int *data0, int *data1,
463 unsigned buf_sizes[])
464{
465 int i, r;
466
467 p->idx++;
468 for (i = 0; i <= pkt->count; ++i) {
469 switch (pkt->reg + i*4) {
470 case UVD_GPCOM_VCPU_DATA0:
471 *data0 = p->idx;
472 break;
473 case UVD_GPCOM_VCPU_DATA1:
474 *data1 = p->idx;
475 break;
476 case UVD_GPCOM_VCPU_CMD:
477 r = radeon_uvd_cs_reloc(p, *data0, *data1, buf_sizes);
478 if (r)
479 return r;
480 break;
481 case UVD_ENGINE_CNTL:
482 break;
483 default:
484 DRM_ERROR("Invalid reg 0x%X!\n",
485 pkt->reg + i*4);
486 return -EINVAL;
487 }
488 p->idx++;
489 }
490 return 0;
491}
492
493int radeon_uvd_cs_parse(struct radeon_cs_parser *p)
494{
495 struct radeon_cs_packet pkt;
496 int r, data0 = 0, data1 = 0;
497
498 /* minimum buffer sizes */
499 unsigned buf_sizes[] = {
500 [0x00000000] = 2048,
501 [0x00000001] = 32 * 1024 * 1024,
502 [0x00000002] = 2048 * 1152 * 3,
503 [0x00000003] = 2048,
504 };
505
506 if (p->chunks[p->chunk_ib_idx].length_dw % 16) {
507 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
508 p->chunks[p->chunk_ib_idx].length_dw);
509 return -EINVAL;
510 }
511
512 if (p->chunk_relocs_idx == -1) {
513 DRM_ERROR("No relocation chunk !\n");
514 return -EINVAL;
515 }
516
517
518 do {
519 r = radeon_cs_packet_parse(p, &pkt, p->idx);
520 if (r)
521 return r;
522 switch (pkt.type) {
523 case RADEON_PACKET_TYPE0:
524 r = radeon_uvd_cs_reg(p, &pkt, &data0,
525 &data1, buf_sizes);
526 if (r)
527 return r;
528 break;
529 case RADEON_PACKET_TYPE2:
530 p->idx += pkt.count + 2;
531 break;
532 default:
533 DRM_ERROR("Unknown packet type %d !\n", pkt.type);
534 return -EINVAL;
535 }
536 } while (p->idx < p->chunks[p->chunk_ib_idx].length_dw);
537 return 0;
538}
539
540static int radeon_uvd_send_msg(struct radeon_device *rdev,
541 int ring, struct radeon_bo *bo,
542 struct radeon_fence **fence)
543{
544 struct ttm_validate_buffer tv;
545 struct list_head head;
546 struct radeon_ib ib;
547 uint64_t addr;
548 int i, r;
549
550 memset(&tv, 0, sizeof(tv));
551 tv.bo = &bo->tbo;
552
553 INIT_LIST_HEAD(&head);
554 list_add(&tv.head, &head);
555
556 r = ttm_eu_reserve_buffers(&head);
557 if (r)
558 return r;
559
560 radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_VRAM);
561 radeon_uvd_force_into_uvd_segment(bo);
562
563 r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
564 if (r) {
565 ttm_eu_backoff_reservation(&head);
566 return r;
567 }
568
569 r = radeon_ib_get(rdev, ring, &ib, NULL, 16);
570 if (r) {
571 ttm_eu_backoff_reservation(&head);
572 return r;
573 }
574
575 addr = radeon_bo_gpu_offset(bo);
576 ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0);
577 ib.ptr[1] = addr;
578 ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0);
579 ib.ptr[3] = addr >> 32;
580 ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0);
581 ib.ptr[5] = 0;
582 for (i = 6; i < 16; ++i)
583 ib.ptr[i] = PACKET2(0);
584 ib.length_dw = 16;
585
586 r = radeon_ib_schedule(rdev, &ib, NULL);
587 if (r) {
588 ttm_eu_backoff_reservation(&head);
589 return r;
590 }
591 ttm_eu_fence_buffer_objects(&head, ib.fence);
592
593 if (fence)
594 *fence = radeon_fence_ref(ib.fence);
595
596 radeon_ib_free(rdev, &ib);
597 radeon_bo_unref(&bo);
598 return 0;
599}
600
601/* multiple fence commands without any stream commands in between can
602 crash the vcpu so just try to emmit a dummy create/destroy msg to
603 avoid this */
604int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
605 uint32_t handle, struct radeon_fence **fence)
606{
607 struct radeon_bo *bo;
608 uint32_t *msg;
609 int r, i;
610
611 r = radeon_bo_create(rdev, 1024, PAGE_SIZE, true,
612 RADEON_GEM_DOMAIN_VRAM, NULL, &bo);
613 if (r)
614 return r;
615
616 r = radeon_bo_reserve(bo, false);
617 if (r) {
618 radeon_bo_unref(&bo);
619 return r;
620 }
621
622 r = radeon_bo_kmap(bo, (void **)&msg);
623 if (r) {
624 radeon_bo_unreserve(bo);
625 radeon_bo_unref(&bo);
626 return r;
627 }
628
629 /* stitch together an UVD create msg */
630 msg[0] = 0x00000de4;
631 msg[1] = 0x00000000;
632 msg[2] = handle;
633 msg[3] = 0x00000000;
634 msg[4] = 0x00000000;
635 msg[5] = 0x00000000;
636 msg[6] = 0x00000000;
637 msg[7] = 0x00000780;
638 msg[8] = 0x00000440;
639 msg[9] = 0x00000000;
640 msg[10] = 0x01b37000;
641 for (i = 11; i < 1024; ++i)
642 msg[i] = 0x0;
643
644 radeon_bo_kunmap(bo);
645 radeon_bo_unreserve(bo);
646
647 return radeon_uvd_send_msg(rdev, ring, bo, fence);
648}
649
650int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
651 uint32_t handle, struct radeon_fence **fence)
652{
653 struct radeon_bo *bo;
654 uint32_t *msg;
655 int r, i;
656
657 r = radeon_bo_create(rdev, 1024, PAGE_SIZE, true,
658 RADEON_GEM_DOMAIN_VRAM, NULL, &bo);
659 if (r)
660 return r;
661
662 r = radeon_bo_reserve(bo, false);
663 if (r) {
664 radeon_bo_unref(&bo);
665 return r;
666 }
667
668 r = radeon_bo_kmap(bo, (void **)&msg);
669 if (r) {
670 radeon_bo_unreserve(bo);
671 radeon_bo_unref(&bo);
672 return r;
673 }
674
675 /* stitch together an UVD destroy msg */
676 msg[0] = 0x00000de4;
677 msg[1] = 0x00000002;
678 msg[2] = handle;
679 msg[3] = 0x00000000;
680 for (i = 4; i < 1024; ++i)
681 msg[i] = 0x0;
682
683 radeon_bo_kunmap(bo);
684 radeon_bo_unreserve(bo);
685
686 return radeon_uvd_send_msg(rdev, ring, bo, fence);
687}
55b51c88
CK		 688
689static void radeon_uvd_idle_work_handler(struct work_struct *work)
690{
691 struct radeon_device *rdev =
692 container_of(work, struct radeon_device, uvd.idle_work.work);
693
694 if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0)
695 radeon_set_uvd_clocks(rdev, 0, 0);
696 else
697 schedule_delayed_work(&rdev->uvd.idle_work,
698 msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
699}
700
701void radeon_uvd_note_usage(struct radeon_device *rdev)
702{
703 bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work);
704 set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work,
705 msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
706 if (set_clocks)
707 radeon_set_uvd_clocks(rdev, 53300, 40000);
708}
facd112d
CK		 709
710static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq,
711 unsigned target_freq,
712 unsigned pd_min,
713 unsigned pd_even)
714{
715 unsigned post_div = vco_freq / target_freq;
716
717 /* adjust to post divider minimum value */
718 if (post_div < pd_min)
719 post_div = pd_min;
720
721 /* we alway need a frequency less than or equal the target */
722 if ((vco_freq / post_div) > target_freq)
723 post_div += 1;
724
725 /* post dividers above a certain value must be even */
726 if (post_div > pd_even && post_div % 2)
727 post_div += 1;
728
729 return post_div;
730}
731
732/**
733 * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers
734 *
735 * @rdev: radeon_device pointer
736 * @vclk: wanted VCLK
737 * @dclk: wanted DCLK
738 * @vco_min: minimum VCO frequency
739 * @vco_max: maximum VCO frequency
740 * @fb_factor: factor to multiply vco freq with
741 * @fb_mask: limit and bitmask for feedback divider
742 * @pd_min: post divider minimum
743 * @pd_max: post divider maximum
744 * @pd_even: post divider must be even above this value
745 * @optimal_fb_div: resulting feedback divider
746 * @optimal_vclk_div: resulting vclk post divider
747 * @optimal_dclk_div: resulting dclk post divider
748 *
749 * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
750 * Returns zero on success -EINVAL on error.
751 */
752int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev,
753 unsigned vclk, unsigned dclk,
754 unsigned vco_min, unsigned vco_max,
755 unsigned fb_factor, unsigned fb_mask,
756 unsigned pd_min, unsigned pd_max,
757 unsigned pd_even,
758 unsigned *optimal_fb_div,
759 unsigned *optimal_vclk_div,
760 unsigned *optimal_dclk_div)
761{
762 unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq;
763
764 /* start off with something large */
765 unsigned optimal_score = ~0;
766
767 /* loop through vco from low to high */
768 vco_min = max(max(vco_min, vclk), dclk);
769 for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
770
771 uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
772 unsigned vclk_div, dclk_div, score;
773
774 do_div(fb_div, ref_freq);
775
776 /* fb div out of range ? */
777 if (fb_div > fb_mask)
778 break; /* it can oly get worse */
779
780 fb_div &= fb_mask;
781
782 /* calc vclk divider with current vco freq */
783 vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk,
784 pd_min, pd_even);
785 if (vclk_div > pd_max)
786 break; /* vco is too big, it has to stop */
787
788 /* calc dclk divider with current vco freq */
789 dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk,
790 pd_min, pd_even);
791 if (vclk_div > pd_max)
792 break; /* vco is too big, it has to stop */
793
794 /* calc score with current vco freq */
795 score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
796
797 /* determine if this vco setting is better than current optimal settings */
798 if (score < optimal_score) {
799 *optimal_fb_div = fb_div;
800 *optimal_vclk_div = vclk_div;
801 *optimal_dclk_div = dclk_div;
802 optimal_score = score;
803 if (optimal_score == 0)
804 break; /* it can't get better than this */
805 }
806 }
807
808 /* did we found a valid setup ? */
809 if (optimal_score == ~0)
810 return -EINVAL;
811
812 return 0;
813}
814
815int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
816 unsigned cg_upll_func_cntl)
817{
818 unsigned i;
819
820 /* make sure UPLL_CTLREQ is deasserted */
821 WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
822
823 mdelay(10);
824
825 /* assert UPLL_CTLREQ */
826 WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
827
828 /* wait for CTLACK and CTLACK2 to get asserted */
829 for (i = 0; i < 100; ++i) {
830 uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
831 if ((RREG32(cg_upll_func_cntl) & mask) == mask)
832 break;
833 mdelay(10);
834 }
835
836 /* deassert UPLL_CTLREQ */
837 WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
838
839 if (i == 100) {
840 DRM_ERROR("Timeout setting UVD clocks!\n");
841 return -ETIMEDOUT;
842 }
843
844 return 0;
845}
Linux 6.x block layer and io_uring tree(s)