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