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
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
radeon_uvd_init(struct radeon_device * rdev)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 = (__force u32)(hdr->ucode_version) & 0xff;
156 version_major = (le32_to_cpu((__force __le32)(hdr->ucode_version))
157 >> 24) & 0xff;
158 version_minor = (le32_to_cpu((__force __le32)(hdr->ucode_version))
159 >> 8) & 0xff;
160 DRM_INFO("Found UVD firmware Version: %u.%u Family ID: %u\n",
161 version_major, version_minor, family_id);
162
163 /*
164 * Limit the number of UVD handles depending on
165 * microcode major and minor versions.
166 */
167 if ((version_major >= 0x01) && (version_minor >= 0x37))
168 rdev->uvd.max_handles = RADEON_MAX_UVD_HANDLES;
169 }
170 }
171
172 /*
173 * In case there is only legacy firmware, or we encounter an error
174 * while loading the new firmware, we fall back to loading the legacy
175 * firmware now.
176 */
177 if (!fw_name || r) {
178 r = request_firmware(&rdev->uvd_fw, legacy_fw_name, rdev->dev);
179 if (r) {
180 dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
181 legacy_fw_name);
182 return r;
183 }
184 }
185
186 bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 8) +
187 RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE +
188 RADEON_UVD_SESSION_SIZE * rdev->uvd.max_handles;
189 r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true,
190 RADEON_GEM_DOMAIN_VRAM, 0, NULL,
191 NULL, &rdev->uvd.vcpu_bo);
192 if (r) {
193 dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r);
194 return r;
195 }
196
197 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
198 if (r) {
199 radeon_bo_unref(&rdev->uvd.vcpu_bo);
200 dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r);
201 return r;
202 }
203
204 r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
205 &rdev->uvd.gpu_addr);
206 if (r) {
207 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
208 radeon_bo_unref(&rdev->uvd.vcpu_bo);
209 dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r);
210 return r;
211 }
212
213 r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
214 if (r) {
215 dev_err(rdev->dev, "(%d) UVD map failed\n", r);
216 return r;
217 }
218
219 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
220
221 for (i = 0; i < rdev->uvd.max_handles; ++i) {
222 atomic_set(&rdev->uvd.handles[i], 0);
223 rdev->uvd.filp[i] = NULL;
224 rdev->uvd.img_size[i] = 0;
225 }
226
227 return 0;
228 }
229
radeon_uvd_fini(struct radeon_device * rdev)230 void radeon_uvd_fini(struct radeon_device *rdev)
231 {
232 int r;
233
234 if (rdev->uvd.vcpu_bo == NULL)
235 return;
236
237 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
238 if (!r) {
239 radeon_bo_kunmap(rdev->uvd.vcpu_bo);
240 radeon_bo_unpin(rdev->uvd.vcpu_bo);
241 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
242 }
243
244 radeon_bo_unref(&rdev->uvd.vcpu_bo);
245
246 radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX]);
247
248 release_firmware(rdev->uvd_fw);
249 }
250
radeon_uvd_suspend(struct radeon_device * rdev)251 int radeon_uvd_suspend(struct radeon_device *rdev)
252 {
253 int i, r;
254
255 if (rdev->uvd.vcpu_bo == NULL)
256 return 0;
257
258 for (i = 0; i < rdev->uvd.max_handles; ++i) {
259 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
260 if (handle != 0) {
261 struct radeon_fence *fence;
262
263 radeon_uvd_note_usage(rdev);
264
265 r = radeon_uvd_get_destroy_msg(rdev,
266 R600_RING_TYPE_UVD_INDEX, handle, &fence);
267 if (r) {
268 DRM_ERROR("Error destroying UVD (%d)!\n", r);
269 continue;
270 }
271
272 radeon_fence_wait(fence, false);
273 radeon_fence_unref(&fence);
274
275 rdev->uvd.filp[i] = NULL;
276 atomic_set(&rdev->uvd.handles[i], 0);
277 }
278 }
279
280 return 0;
281 }
282
radeon_uvd_resume(struct radeon_device * rdev)283 int radeon_uvd_resume(struct radeon_device *rdev)
284 {
285 unsigned size;
286 void *ptr;
287
288 if (rdev->uvd.vcpu_bo == NULL)
289 return -EINVAL;
290
291 memcpy_toio((void __iomem *)rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->size);
292
293 size = radeon_bo_size(rdev->uvd.vcpu_bo);
294 size -= rdev->uvd_fw->size;
295
296 ptr = rdev->uvd.cpu_addr;
297 ptr += rdev->uvd_fw->size;
298
299 memset_io((void __iomem *)ptr, 0, size);
300
301 return 0;
302 }
303
radeon_uvd_force_into_uvd_segment(struct radeon_bo * rbo,uint32_t allowed_domains)304 void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo,
305 uint32_t allowed_domains)
306 {
307 int i;
308
309 for (i = 0; i < rbo->placement.num_placement; ++i) {
310 rbo->placements[i].fpfn = 0 >> PAGE_SHIFT;
311 rbo->placements[i].lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
312 }
313
314 /* If it must be in VRAM it must be in the first segment as well */
315 if (allowed_domains == RADEON_GEM_DOMAIN_VRAM)
316 return;
317
318 /* abort if we already have more than one placement */
319 if (rbo->placement.num_placement > 1)
320 return;
321
322 /* add another 256MB segment */
323 rbo->placements[1] = rbo->placements[0];
324 rbo->placements[1].fpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
325 rbo->placements[1].lpfn += (256 * 1024 * 1024) >> PAGE_SHIFT;
326 rbo->placement.num_placement++;
327 rbo->placement.num_busy_placement++;
328 }
329
radeon_uvd_free_handles(struct radeon_device * rdev,struct drm_file * filp)330 void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
331 {
332 int i, r;
333 for (i = 0; i < rdev->uvd.max_handles; ++i) {
334 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
335 if (handle != 0 && rdev->uvd.filp[i] == filp) {
336 struct radeon_fence *fence;
337
338 radeon_uvd_note_usage(rdev);
339
340 r = radeon_uvd_get_destroy_msg(rdev,
341 R600_RING_TYPE_UVD_INDEX, handle, &fence);
342 if (r) {
343 DRM_ERROR("Error destroying UVD (%d)!\n", r);
344 continue;
345 }
346
347 radeon_fence_wait(fence, false);
348 radeon_fence_unref(&fence);
349
350 rdev->uvd.filp[i] = NULL;
351 atomic_set(&rdev->uvd.handles[i], 0);
352 }
353 }
354 }
355
radeon_uvd_cs_msg_decode(uint32_t * msg,unsigned buf_sizes[])356 static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
357 {
358 unsigned stream_type = msg[4];
359 unsigned width = msg[6];
360 unsigned height = msg[7];
361 unsigned dpb_size = msg[9];
362 unsigned pitch = msg[28];
363
364 unsigned width_in_mb = width / 16;
365 unsigned height_in_mb = ALIGN(height / 16, 2);
366
367 unsigned image_size, tmp, min_dpb_size;
368
369 image_size = width * height;
370 image_size += image_size / 2;
371 image_size = ALIGN(image_size, 1024);
372
373 switch (stream_type) {
374 case 0: /* H264 */
375
376 /* reference picture buffer */
377 min_dpb_size = image_size * 17;
378
379 /* macroblock context buffer */
380 min_dpb_size += width_in_mb * height_in_mb * 17 * 192;
381
382 /* IT surface buffer */
383 min_dpb_size += width_in_mb * height_in_mb * 32;
384 break;
385
386 case 1: /* VC1 */
387
388 /* reference picture buffer */
389 min_dpb_size = image_size * 3;
390
391 /* CONTEXT_BUFFER */
392 min_dpb_size += width_in_mb * height_in_mb * 128;
393
394 /* IT surface buffer */
395 min_dpb_size += width_in_mb * 64;
396
397 /* DB surface buffer */
398 min_dpb_size += width_in_mb * 128;
399
400 /* BP */
401 tmp = max(width_in_mb, height_in_mb);
402 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
403 break;
404
405 case 3: /* MPEG2 */
406
407 /* reference picture buffer */
408 min_dpb_size = image_size * 3;
409 break;
410
411 case 4: /* MPEG4 */
412
413 /* reference picture buffer */
414 min_dpb_size = image_size * 3;
415
416 /* CM */
417 min_dpb_size += width_in_mb * height_in_mb * 64;
418
419 /* IT surface buffer */
420 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
421 break;
422
423 default:
424 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
425 return -EINVAL;
426 }
427
428 if (width > pitch) {
429 DRM_ERROR("Invalid UVD decoding target pitch!\n");
430 return -EINVAL;
431 }
432
433 if (dpb_size < min_dpb_size) {
434 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
435 dpb_size, min_dpb_size);
436 return -EINVAL;
437 }
438
439 buf_sizes[0x1] = dpb_size;
440 buf_sizes[0x2] = image_size;
441 return 0;
442 }
443
radeon_uvd_validate_codec(struct radeon_cs_parser * p,unsigned stream_type)444 static int radeon_uvd_validate_codec(struct radeon_cs_parser *p,
445 unsigned stream_type)
446 {
447 switch (stream_type) {
448 case 0: /* H264 */
449 case 1: /* VC1 */
450 /* always supported */
451 return 0;
452
453 case 3: /* MPEG2 */
454 case 4: /* MPEG4 */
455 /* only since UVD 3 */
456 if (p->rdev->family >= CHIP_PALM)
457 return 0;
458
459 fallthrough;
460 default:
461 DRM_ERROR("UVD codec not supported by hardware %d!\n",
462 stream_type);
463 return -EINVAL;
464 }
465 }
466
radeon_uvd_cs_msg(struct radeon_cs_parser * p,struct radeon_bo * bo,unsigned offset,unsigned buf_sizes[])467 static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
468 unsigned offset, unsigned buf_sizes[])
469 {
470 int32_t *msg, msg_type, handle;
471 unsigned img_size = 0;
472 struct dma_fence *f;
473 void *ptr;
474
475 int i, r;
476
477 if (offset & 0x3F) {
478 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
479 return -EINVAL;
480 }
481
482 f = dma_resv_excl_fence(bo->tbo.base.resv);
483 if (f) {
484 r = radeon_fence_wait((struct radeon_fence *)f, false);
485 if (r) {
486 DRM_ERROR("Failed waiting for UVD message (%d)!\n", r);
487 return r;
488 }
489 }
490
491 r = radeon_bo_kmap(bo, &ptr);
492 if (r) {
493 DRM_ERROR("Failed mapping the UVD message (%d)!\n", r);
494 return r;
495 }
496
497 msg = ptr + offset;
498
499 msg_type = msg[1];
500 handle = msg[2];
501
502 if (handle == 0) {
503 DRM_ERROR("Invalid UVD handle!\n");
504 return -EINVAL;
505 }
506
507 switch (msg_type) {
508 case 0:
509 /* it's a create msg, calc image size (width * height) */
510 img_size = msg[7] * msg[8];
511
512 r = radeon_uvd_validate_codec(p, msg[4]);
513 radeon_bo_kunmap(bo);
514 if (r)
515 return r;
516
517 /* try to alloc a new handle */
518 for (i = 0; i < p->rdev->uvd.max_handles; ++i) {
519 if (atomic_read(&p->rdev->uvd.handles[i]) == handle) {
520 DRM_ERROR("Handle 0x%x already in use!\n", handle);
521 return -EINVAL;
522 }
523
524 if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
525 p->rdev->uvd.filp[i] = p->filp;
526 p->rdev->uvd.img_size[i] = img_size;
527 return 0;
528 }
529 }
530
531 DRM_ERROR("No more free UVD handles!\n");
532 return -EINVAL;
533
534 case 1:
535 /* it's a decode msg, validate codec and calc buffer sizes */
536 r = radeon_uvd_validate_codec(p, msg[4]);
537 if (!r)
538 r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
539 radeon_bo_kunmap(bo);
540 if (r)
541 return r;
542
543 /* validate the handle */
544 for (i = 0; i < p->rdev->uvd.max_handles; ++i) {
545 if (atomic_read(&p->rdev->uvd.handles[i]) == handle) {
546 if (p->rdev->uvd.filp[i] != p->filp) {
547 DRM_ERROR("UVD handle collision detected!\n");
548 return -EINVAL;
549 }
550 return 0;
551 }
552 }
553
554 DRM_ERROR("Invalid UVD handle 0x%x!\n", handle);
555 return -ENOENT;
556
557 case 2:
558 /* it's a destroy msg, free the handle */
559 for (i = 0; i < p->rdev->uvd.max_handles; ++i)
560 atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0);
561 radeon_bo_kunmap(bo);
562 return 0;
563
564 default:
565
566 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
567 return -EINVAL;
568 }
569
570 BUG();
571 return -EINVAL;
572 }
573
radeon_uvd_cs_reloc(struct radeon_cs_parser * p,int data0,int data1,unsigned buf_sizes[],bool * has_msg_cmd)574 static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
575 int data0, int data1,
576 unsigned buf_sizes[], bool *has_msg_cmd)
577 {
578 struct radeon_cs_chunk *relocs_chunk;
579 struct radeon_bo_list *reloc;
580 unsigned idx, cmd, offset;
581 uint64_t start, end;
582 int r;
583
584 relocs_chunk = p->chunk_relocs;
585 offset = radeon_get_ib_value(p, data0);
586 idx = radeon_get_ib_value(p, data1);
587 if (idx >= relocs_chunk->length_dw) {
588 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
589 idx, relocs_chunk->length_dw);
590 return -EINVAL;
591 }
592
593 reloc = &p->relocs[(idx / 4)];
594 start = reloc->gpu_offset;
595 end = start + radeon_bo_size(reloc->robj);
596 start += offset;
597
598 p->ib.ptr[data0] = start & 0xFFFFFFFF;
599 p->ib.ptr[data1] = start >> 32;
600
601 cmd = radeon_get_ib_value(p, p->idx) >> 1;
602
603 if (cmd < 0x4) {
604 if (end <= start) {
605 DRM_ERROR("invalid reloc offset %X!\n", offset);
606 return -EINVAL;
607 }
608 if ((end - start) < buf_sizes[cmd]) {
609 DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
610 (unsigned)(end - start), buf_sizes[cmd]);
611 return -EINVAL;
612 }
613
614 } else if (cmd != 0x100) {
615 DRM_ERROR("invalid UVD command %X!\n", cmd);
616 return -EINVAL;
617 }
618
619 if ((start >> 28) != ((end - 1) >> 28)) {
620 DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
621 start, end);
622 return -EINVAL;
623 }
624
625 /* TODO: is this still necessary on NI+ ? */
626 if ((cmd == 0 || cmd == 0x3) &&
627 (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
628 DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
629 start, end);
630 return -EINVAL;
631 }
632
633 if (cmd == 0) {
634 if (*has_msg_cmd) {
635 DRM_ERROR("More than one message in a UVD-IB!\n");
636 return -EINVAL;
637 }
638 *has_msg_cmd = true;
639 r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
640 if (r)
641 return r;
642 } else if (!*has_msg_cmd) {
643 DRM_ERROR("Message needed before other commands are send!\n");
644 return -EINVAL;
645 }
646
647 return 0;
648 }
649
radeon_uvd_cs_reg(struct radeon_cs_parser * p,struct radeon_cs_packet * pkt,int * data0,int * data1,unsigned buf_sizes[],bool * has_msg_cmd)650 static int radeon_uvd_cs_reg(struct radeon_cs_parser *p,
651 struct radeon_cs_packet *pkt,
652 int *data0, int *data1,
653 unsigned buf_sizes[],
654 bool *has_msg_cmd)
655 {
656 int i, r;
657
658 p->idx++;
659 for (i = 0; i <= pkt->count; ++i) {
660 switch (pkt->reg + i*4) {
661 case UVD_GPCOM_VCPU_DATA0:
662 *data0 = p->idx;
663 break;
664 case UVD_GPCOM_VCPU_DATA1:
665 *data1 = p->idx;
666 break;
667 case UVD_GPCOM_VCPU_CMD:
668 r = radeon_uvd_cs_reloc(p, *data0, *data1,
669 buf_sizes, has_msg_cmd);
670 if (r)
671 return r;
672 break;
673 case UVD_ENGINE_CNTL:
674 case UVD_NO_OP:
675 break;
676 default:
677 DRM_ERROR("Invalid reg 0x%X!\n",
678 pkt->reg + i*4);
679 return -EINVAL;
680 }
681 p->idx++;
682 }
683 return 0;
684 }
685
radeon_uvd_cs_parse(struct radeon_cs_parser * p)686 int radeon_uvd_cs_parse(struct radeon_cs_parser *p)
687 {
688 struct radeon_cs_packet pkt;
689 int r, data0 = 0, data1 = 0;
690
691 /* does the IB has a msg command */
692 bool has_msg_cmd = false;
693
694 /* minimum buffer sizes */
695 unsigned buf_sizes[] = {
696 [0x00000000] = 2048,
697 [0x00000001] = 32 * 1024 * 1024,
698 [0x00000002] = 2048 * 1152 * 3,
699 [0x00000003] = 2048,
700 };
701
702 if (p->chunk_ib->length_dw % 16) {
703 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
704 p->chunk_ib->length_dw);
705 return -EINVAL;
706 }
707
708 if (p->chunk_relocs == NULL) {
709 DRM_ERROR("No relocation chunk !\n");
710 return -EINVAL;
711 }
712
713
714 do {
715 r = radeon_cs_packet_parse(p, &pkt, p->idx);
716 if (r)
717 return r;
718 switch (pkt.type) {
719 case RADEON_PACKET_TYPE0:
720 r = radeon_uvd_cs_reg(p, &pkt, &data0, &data1,
721 buf_sizes, &has_msg_cmd);
722 if (r)
723 return r;
724 break;
725 case RADEON_PACKET_TYPE2:
726 p->idx += pkt.count + 2;
727 break;
728 default:
729 DRM_ERROR("Unknown packet type %d !\n", pkt.type);
730 return -EINVAL;
731 }
732 } while (p->idx < p->chunk_ib->length_dw);
733
734 if (!has_msg_cmd) {
735 DRM_ERROR("UVD-IBs need a msg command!\n");
736 return -EINVAL;
737 }
738
739 return 0;
740 }
741
radeon_uvd_send_msg(struct radeon_device * rdev,int ring,uint64_t addr,struct radeon_fence ** fence)742 static int radeon_uvd_send_msg(struct radeon_device *rdev,
743 int ring, uint64_t addr,
744 struct radeon_fence **fence)
745 {
746 struct radeon_ib ib;
747 int i, r;
748
749 r = radeon_ib_get(rdev, ring, &ib, NULL, 64);
750 if (r)
751 return r;
752
753 ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0);
754 ib.ptr[1] = addr;
755 ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0);
756 ib.ptr[3] = addr >> 32;
757 ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0);
758 ib.ptr[5] = 0;
759 for (i = 6; i < 16; i += 2) {
760 ib.ptr[i] = PACKET0(UVD_NO_OP, 0);
761 ib.ptr[i+1] = 0;
762 }
763 ib.length_dw = 16;
764
765 r = radeon_ib_schedule(rdev, &ib, NULL, false);
766
767 if (fence)
768 *fence = radeon_fence_ref(ib.fence);
769
770 radeon_ib_free(rdev, &ib);
771 return r;
772 }
773
774 /*
775 * multiple fence commands without any stream commands in between can
776 * crash the vcpu so just try to emmit a dummy create/destroy msg to
777 * avoid this
778 */
radeon_uvd_get_create_msg(struct radeon_device * rdev,int ring,uint32_t handle,struct radeon_fence ** fence)779 int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
780 uint32_t handle, struct radeon_fence **fence)
781 {
782 /* we use the last page of the vcpu bo for the UVD message */
783 uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) -
784 RADEON_GPU_PAGE_SIZE;
785
786 uint32_t __iomem *msg = (void __iomem *)(rdev->uvd.cpu_addr + offs);
787 uint64_t addr = rdev->uvd.gpu_addr + offs;
788
789 int r, i;
790
791 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true);
792 if (r)
793 return r;
794
795 /* stitch together an UVD create msg */
796 writel((__force u32)cpu_to_le32(0x00000de4), &msg[0]);
797 writel(0x0, (void __iomem *)&msg[1]);
798 writel((__force u32)cpu_to_le32(handle), &msg[2]);
799 writel(0x0, &msg[3]);
800 writel(0x0, &msg[4]);
801 writel(0x0, &msg[5]);
802 writel(0x0, &msg[6]);
803 writel((__force u32)cpu_to_le32(0x00000780), &msg[7]);
804 writel((__force u32)cpu_to_le32(0x00000440), &msg[8]);
805 writel(0x0, &msg[9]);
806 writel((__force u32)cpu_to_le32(0x01b37000), &msg[10]);
807 for (i = 11; i < 1024; ++i)
808 writel(0x0, &msg[i]);
809
810 r = radeon_uvd_send_msg(rdev, ring, addr, fence);
811 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
812 return r;
813 }
814
radeon_uvd_get_destroy_msg(struct radeon_device * rdev,int ring,uint32_t handle,struct radeon_fence ** fence)815 int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
816 uint32_t handle, struct radeon_fence **fence)
817 {
818 /* we use the last page of the vcpu bo for the UVD message */
819 uint64_t offs = radeon_bo_size(rdev->uvd.vcpu_bo) -
820 RADEON_GPU_PAGE_SIZE;
821
822 uint32_t __iomem *msg = (void __iomem *)(rdev->uvd.cpu_addr + offs);
823 uint64_t addr = rdev->uvd.gpu_addr + offs;
824
825 int r, i;
826
827 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, true);
828 if (r)
829 return r;
830
831 /* stitch together an UVD destroy msg */
832 writel((__force u32)cpu_to_le32(0x00000de4), &msg[0]);
833 writel((__force u32)cpu_to_le32(0x00000002), &msg[1]);
834 writel((__force u32)cpu_to_le32(handle), &msg[2]);
835 writel(0x0, &msg[3]);
836 for (i = 4; i < 1024; ++i)
837 writel(0x0, &msg[i]);
838
839 r = radeon_uvd_send_msg(rdev, ring, addr, fence);
840 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
841 return r;
842 }
843
844 /**
845 * radeon_uvd_count_handles - count number of open streams
846 *
847 * @rdev: radeon_device pointer
848 * @sd: number of SD streams
849 * @hd: number of HD streams
850 *
851 * Count the number of open SD/HD streams as a hint for power mangement
852 */
radeon_uvd_count_handles(struct radeon_device * rdev,unsigned * sd,unsigned * hd)853 static void radeon_uvd_count_handles(struct radeon_device *rdev,
854 unsigned *sd, unsigned *hd)
855 {
856 unsigned i;
857
858 *sd = 0;
859 *hd = 0;
860
861 for (i = 0; i < rdev->uvd.max_handles; ++i) {
862 if (!atomic_read(&rdev->uvd.handles[i]))
863 continue;
864
865 if (rdev->uvd.img_size[i] >= 720*576)
866 ++(*hd);
867 else
868 ++(*sd);
869 }
870 }
871
radeon_uvd_idle_work_handler(struct work_struct * work)872 static void radeon_uvd_idle_work_handler(struct work_struct *work)
873 {
874 struct radeon_device *rdev =
875 container_of(work, struct radeon_device, uvd.idle_work.work);
876
877 if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) {
878 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
879 radeon_uvd_count_handles(rdev, &rdev->pm.dpm.sd,
880 &rdev->pm.dpm.hd);
881 radeon_dpm_enable_uvd(rdev, false);
882 } else {
883 radeon_set_uvd_clocks(rdev, 0, 0);
884 }
885 } else {
886 schedule_delayed_work(&rdev->uvd.idle_work,
887 msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
888 }
889 }
890
radeon_uvd_note_usage(struct radeon_device * rdev)891 void radeon_uvd_note_usage(struct radeon_device *rdev)
892 {
893 bool streams_changed = false;
894 bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work);
895 set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work,
896 msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
897
898 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
899 unsigned hd = 0, sd = 0;
900 radeon_uvd_count_handles(rdev, &sd, &hd);
901 if ((rdev->pm.dpm.sd != sd) ||
902 (rdev->pm.dpm.hd != hd)) {
903 rdev->pm.dpm.sd = sd;
904 rdev->pm.dpm.hd = hd;
905 /* disable this for now */
906 /*streams_changed = true;*/
907 }
908 }
909
910 if (set_clocks || streams_changed) {
911 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
912 radeon_dpm_enable_uvd(rdev, true);
913 } else {
914 radeon_set_uvd_clocks(rdev, 53300, 40000);
915 }
916 }
917 }
918
radeon_uvd_calc_upll_post_div(unsigned vco_freq,unsigned target_freq,unsigned pd_min,unsigned pd_even)919 static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq,
920 unsigned target_freq,
921 unsigned pd_min,
922 unsigned pd_even)
923 {
924 unsigned post_div = vco_freq / target_freq;
925
926 /* adjust to post divider minimum value */
927 if (post_div < pd_min)
928 post_div = pd_min;
929
930 /* we alway need a frequency less than or equal the target */
931 if ((vco_freq / post_div) > target_freq)
932 post_div += 1;
933
934 /* post dividers above a certain value must be even */
935 if (post_div > pd_even && post_div % 2)
936 post_div += 1;
937
938 return post_div;
939 }
940
941 /**
942 * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers
943 *
944 * @rdev: radeon_device pointer
945 * @vclk: wanted VCLK
946 * @dclk: wanted DCLK
947 * @vco_min: minimum VCO frequency
948 * @vco_max: maximum VCO frequency
949 * @fb_factor: factor to multiply vco freq with
950 * @fb_mask: limit and bitmask for feedback divider
951 * @pd_min: post divider minimum
952 * @pd_max: post divider maximum
953 * @pd_even: post divider must be even above this value
954 * @optimal_fb_div: resulting feedback divider
955 * @optimal_vclk_div: resulting vclk post divider
956 * @optimal_dclk_div: resulting dclk post divider
957 *
958 * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
959 * Returns zero on success -EINVAL on error.
960 */
radeon_uvd_calc_upll_dividers(struct radeon_device * rdev,unsigned vclk,unsigned dclk,unsigned vco_min,unsigned vco_max,unsigned fb_factor,unsigned fb_mask,unsigned pd_min,unsigned pd_max,unsigned pd_even,unsigned * optimal_fb_div,unsigned * optimal_vclk_div,unsigned * optimal_dclk_div)961 int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev,
962 unsigned vclk, unsigned dclk,
963 unsigned vco_min, unsigned vco_max,
964 unsigned fb_factor, unsigned fb_mask,
965 unsigned pd_min, unsigned pd_max,
966 unsigned pd_even,
967 unsigned *optimal_fb_div,
968 unsigned *optimal_vclk_div,
969 unsigned *optimal_dclk_div)
970 {
971 unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq;
972
973 /* start off with something large */
974 unsigned optimal_score = ~0;
975
976 /* loop through vco from low to high */
977 vco_min = max(max(vco_min, vclk), dclk);
978 for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
979
980 uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
981 unsigned vclk_div, dclk_div, score;
982
983 do_div(fb_div, ref_freq);
984
985 /* fb div out of range ? */
986 if (fb_div > fb_mask)
987 break; /* it can oly get worse */
988
989 fb_div &= fb_mask;
990
991 /* calc vclk divider with current vco freq */
992 vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk,
993 pd_min, pd_even);
994 if (vclk_div > pd_max)
995 break; /* vco is too big, it has to stop */
996
997 /* calc dclk divider with current vco freq */
998 dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk,
999 pd_min, pd_even);
1000 if (dclk_div > pd_max)
1001 break; /* vco is too big, it has to stop */
1002
1003 /* calc score with current vco freq */
1004 score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
1005
1006 /* determine if this vco setting is better than current optimal settings */
1007 if (score < optimal_score) {
1008 *optimal_fb_div = fb_div;
1009 *optimal_vclk_div = vclk_div;
1010 *optimal_dclk_div = dclk_div;
1011 optimal_score = score;
1012 if (optimal_score == 0)
1013 break; /* it can't get better than this */
1014 }
1015 }
1016
1017 /* did we found a valid setup ? */
1018 if (optimal_score == ~0)
1019 return -EINVAL;
1020
1021 return 0;
1022 }
1023
radeon_uvd_send_upll_ctlreq(struct radeon_device * rdev,unsigned cg_upll_func_cntl)1024 int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
1025 unsigned cg_upll_func_cntl)
1026 {
1027 unsigned i;
1028
1029 /* make sure UPLL_CTLREQ is deasserted */
1030 WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
1031
1032 mdelay(10);
1033
1034 /* assert UPLL_CTLREQ */
1035 WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
1036
1037 /* wait for CTLACK and CTLACK2 to get asserted */
1038 for (i = 0; i < 100; ++i) {
1039 uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
1040 if ((RREG32(cg_upll_func_cntl) & mask) == mask)
1041 break;
1042 mdelay(10);
1043 }
1044
1045 /* deassert UPLL_CTLREQ */
1046 WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
1047
1048 if (i == 100) {
1049 DRM_ERROR("Timeout setting UVD clocks!\n");
1050 return -ETIMEDOUT;
1051 }
1052
1053 return 0;
1054 }
1055