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
54MODULE_FIRMWARE(FIRMWARE_R600);
55MODULE_FIRMWARE(FIRMWARE_RS780);
56MODULE_FIRMWARE(FIRMWARE_RV770);
57MODULE_FIRMWARE(FIRMWARE_RV710);
58MODULE_FIRMWARE(FIRMWARE_CYPRESS);
59MODULE_FIRMWARE(FIRMWARE_SUMO);
60MODULE_FIRMWARE(FIRMWARE_TAHITI);
61MODULE_FIRMWARE(FIRMWARE_BONAIRE_LEGACY);
62MODULE_FIRMWARE(FIRMWARE_BONAIRE);
63
64static void radeon_uvd_idle_work_handler(struct work_struct *work);
65
66int 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(fw: &rdev->uvd_fw, name: fw_name, device: 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(fw: 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(fw: &rdev->uvd_fw, name: legacy_fw_name, device: 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, size: bo_size, PAGE_SIZE, kernel: true,
190 RADEON_GEM_DOMAIN_VRAM, flags: 0, NULL,
191 NULL, bo_ptr: &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(bo: rdev->uvd.vcpu_bo, no_intr: false);
198 if (r) {
199 radeon_bo_unref(bo: &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(bo: rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
205 gpu_addr: &rdev->uvd.gpu_addr);
206 if (r) {
207 radeon_bo_unreserve(bo: rdev->uvd.vcpu_bo);
208 radeon_bo_unref(bo: &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(bo: rdev->uvd.vcpu_bo, ptr: &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(bo: rdev->uvd.vcpu_bo);
220
221 for (i = 0; i < rdev->uvd.max_handles; ++i) {
222 atomic_set(v: &rdev->uvd.handles[i], i: 0);
223 rdev->uvd.filp[i] = NULL;
224 rdev->uvd.img_size[i] = 0;
225 }
226
227 return 0;
228}
229
230void 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(bo: rdev->uvd.vcpu_bo, no_intr: false);
238 if (!r) {
239 radeon_bo_kunmap(bo: rdev->uvd.vcpu_bo);
240 radeon_bo_unpin(bo: rdev->uvd.vcpu_bo);
241 radeon_bo_unreserve(bo: rdev->uvd.vcpu_bo);
242 }
243
244 radeon_bo_unref(bo: &rdev->uvd.vcpu_bo);
245
246 radeon_ring_fini(rdev, cp: &rdev->ring[R600_RING_TYPE_UVD_INDEX]);
247
248 release_firmware(fw: rdev->uvd_fw);
249}
250
251int 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(v: &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: &fence);
267 if (r) {
268 DRM_ERROR("Error destroying UVD (%d)!\n", r);
269 continue;
270 }
271
272 radeon_fence_wait(fence, interruptible: false);
273 radeon_fence_unref(fence: &fence);
274
275 rdev->uvd.filp[i] = NULL;
276 atomic_set(v: &rdev->uvd.handles[i], i: 0);
277 }
278 }
279
280 return 0;
281}
282
283int 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(bo: 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
304void 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}
328
329void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
330{
331 int i, r;
332 for (i = 0; i < rdev->uvd.max_handles; ++i) {
333 uint32_t handle = atomic_read(v: &rdev->uvd.handles[i]);
334 if (handle != 0 && rdev->uvd.filp[i] == filp) {
335 struct radeon_fence *fence;
336
337 radeon_uvd_note_usage(rdev);
338
339 r = radeon_uvd_get_destroy_msg(rdev,
340 R600_RING_TYPE_UVD_INDEX, handle, fence: &fence);
341 if (r) {
342 DRM_ERROR("Error destroying UVD (%d)!\n", r);
343 continue;
344 }
345
346 radeon_fence_wait(fence, interruptible: false);
347 radeon_fence_unref(fence: &fence);
348
349 rdev->uvd.filp[i] = NULL;
350 atomic_set(v: &rdev->uvd.handles[i], i: 0);
351 }
352 }
353}
354
355static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
356{
357 unsigned stream_type = msg[4];
358 unsigned width = msg[6];
359 unsigned height = msg[7];
360 unsigned dpb_size = msg[9];
361 unsigned pitch = msg[28];
362
363 unsigned width_in_mb = width / 16;
364 unsigned height_in_mb = ALIGN(height / 16, 2);
365
366 unsigned image_size, tmp, min_dpb_size;
367
368 image_size = width * height;
369 image_size += image_size / 2;
370 image_size = ALIGN(image_size, 1024);
371
372 switch (stream_type) {
373 case 0: /* H264 */
374
375 /* reference picture buffer */
376 min_dpb_size = image_size * 17;
377
378 /* macroblock context buffer */
379 min_dpb_size += width_in_mb * height_in_mb * 17 * 192;
380
381 /* IT surface buffer */
382 min_dpb_size += width_in_mb * height_in_mb * 32;
383 break;
384
385 case 1: /* VC1 */
386
387 /* reference picture buffer */
388 min_dpb_size = image_size * 3;
389
390 /* CONTEXT_BUFFER */
391 min_dpb_size += width_in_mb * height_in_mb * 128;
392
393 /* IT surface buffer */
394 min_dpb_size += width_in_mb * 64;
395
396 /* DB surface buffer */
397 min_dpb_size += width_in_mb * 128;
398
399 /* BP */
400 tmp = max(width_in_mb, height_in_mb);
401 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
402 break;
403
404 case 3: /* MPEG2 */
405
406 /* reference picture buffer */
407 min_dpb_size = image_size * 3;
408 break;
409
410 case 4: /* MPEG4 */
411
412 /* reference picture buffer */
413 min_dpb_size = image_size * 3;
414
415 /* CM */
416 min_dpb_size += width_in_mb * height_in_mb * 64;
417
418 /* IT surface buffer */
419 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
420 break;
421
422 default:
423 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
424 return -EINVAL;
425 }
426
427 if (width > pitch) {
428 DRM_ERROR("Invalid UVD decoding target pitch!\n");
429 return -EINVAL;
430 }
431
432 if (dpb_size < min_dpb_size) {
433 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
434 dpb_size, min_dpb_size);
435 return -EINVAL;
436 }
437
438 buf_sizes[0x1] = dpb_size;
439 buf_sizes[0x2] = image_size;
440 return 0;
441}
442
443static int radeon_uvd_validate_codec(struct radeon_cs_parser *p,
444 unsigned stream_type)
445{
446 switch (stream_type) {
447 case 0: /* H264 */
448 case 1: /* VC1 */
449 /* always supported */
450 return 0;
451
452 case 3: /* MPEG2 */
453 case 4: /* MPEG4 */
454 /* only since UVD 3 */
455 if (p->rdev->family >= CHIP_PALM)
456 return 0;
457
458 fallthrough;
459 default:
460 DRM_ERROR("UVD codec not supported by hardware %d!\n",
461 stream_type);
462 return -EINVAL;
463 }
464}
465
466static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
467 unsigned offset, unsigned buf_sizes[])
468{
469 int32_t *msg, msg_type, handle;
470 unsigned img_size = 0;
471 void *ptr;
472 int i, r;
473
474 if (offset & 0x3F) {
475 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
476 return -EINVAL;
477 }
478
479 r = radeon_bo_kmap(bo, ptr: &ptr);
480 if (r) {
481 DRM_ERROR("Failed mapping the UVD message (%d)!\n", r);
482 return r;
483 }
484
485 msg = ptr + offset;
486
487 msg_type = msg[1];
488 handle = msg[2];
489
490 if (handle == 0) {
491 radeon_bo_kunmap(bo);
492 DRM_ERROR("Invalid UVD handle!\n");
493 return -EINVAL;
494 }
495
496 switch (msg_type) {
497 case 0:
498 /* it's a create msg, calc image size (width * height) */
499 img_size = msg[7] * msg[8];
500
501 r = radeon_uvd_validate_codec(p, stream_type: msg[4]);
502 radeon_bo_kunmap(bo);
503 if (r)
504 return r;
505
506 /* try to alloc a new handle */
507 for (i = 0; i < p->rdev->uvd.max_handles; ++i) {
508 if (atomic_read(v: &p->rdev->uvd.handles[i]) == handle) {
509 DRM_ERROR("Handle 0x%x already in use!\n", handle);
510 return -EINVAL;
511 }
512
513 if (!atomic_cmpxchg(v: &p->rdev->uvd.handles[i], old: 0, new: handle)) {
514 p->rdev->uvd.filp[i] = p->filp;
515 p->rdev->uvd.img_size[i] = img_size;
516 return 0;
517 }
518 }
519
520 DRM_ERROR("No more free UVD handles!\n");
521 return -EINVAL;
522
523 case 1:
524 /* it's a decode msg, validate codec and calc buffer sizes */
525 r = radeon_uvd_validate_codec(p, stream_type: msg[4]);
526 if (!r)
527 r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
528 radeon_bo_kunmap(bo);
529 if (r)
530 return r;
531
532 /* validate the handle */
533 for (i = 0; i < p->rdev->uvd.max_handles; ++i) {
534 if (atomic_read(v: &p->rdev->uvd.handles[i]) == handle) {
535 if (p->rdev->uvd.filp[i] != p->filp) {
536 DRM_ERROR("UVD handle collision detected!\n");
537 return -EINVAL;
538 }
539 return 0;
540 }
541 }
542
543 DRM_ERROR("Invalid UVD handle 0x%x!\n", handle);
544 return -ENOENT;
545
546 case 2:
547 /* it's a destroy msg, free the handle */
548 for (i = 0; i < p->rdev->uvd.max_handles; ++i)
549 atomic_cmpxchg(v: &p->rdev->uvd.handles[i], old: handle, new: 0);
550 radeon_bo_kunmap(bo);
551 return 0;
552
553 default:
554 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
555 }
556
557 radeon_bo_kunmap(bo);
558 return -EINVAL;
559}
560
561static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
562 int data0, int data1,
563 unsigned buf_sizes[], bool *has_msg_cmd)
564{
565 struct radeon_cs_chunk *relocs_chunk;
566 struct radeon_bo_list *reloc;
567 unsigned idx, cmd, offset;
568 uint64_t start, end;
569 int r;
570
571 relocs_chunk = p->chunk_relocs;
572 offset = radeon_get_ib_value(p, idx: data0);
573 idx = radeon_get_ib_value(p, idx: data1);
574 if (idx >= relocs_chunk->length_dw) {
575 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
576 idx, relocs_chunk->length_dw);
577 return -EINVAL;
578 }
579
580 reloc = &p->relocs[(idx / 4)];
581 start = reloc->gpu_offset;
582 end = start + radeon_bo_size(bo: reloc->robj);
583 start += offset;
584
585 p->ib.ptr[data0] = start & 0xFFFFFFFF;
586 p->ib.ptr[data1] = start >> 32;
587
588 cmd = radeon_get_ib_value(p, idx: p->idx) >> 1;
589
590 if (cmd < 0x4) {
591 if (end <= start) {
592 DRM_ERROR("invalid reloc offset %X!\n", offset);
593 return -EINVAL;
594 }
595 if ((end - start) < buf_sizes[cmd]) {
596 DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
597 (unsigned)(end - start), buf_sizes[cmd]);
598 return -EINVAL;
599 }
600
601 } else if (cmd != 0x100) {
602 DRM_ERROR("invalid UVD command %X!\n", cmd);
603 return -EINVAL;
604 }
605
606 if ((start >> 28) != ((end - 1) >> 28)) {
607 DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
608 start, end);
609 return -EINVAL;
610 }
611
612 /* TODO: is this still necessary on NI+ ? */
613 if ((cmd == 0 || cmd == 0x3) &&
614 (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
615 DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
616 start, end);
617 return -EINVAL;
618 }
619
620 if (cmd == 0) {
621 if (*has_msg_cmd) {
622 DRM_ERROR("More than one message in a UVD-IB!\n");
623 return -EINVAL;
624 }
625 *has_msg_cmd = true;
626 r = radeon_uvd_cs_msg(p, bo: reloc->robj, offset, buf_sizes);
627 if (r)
628 return r;
629 } else if (!*has_msg_cmd) {
630 DRM_ERROR("Message needed before other commands are send!\n");
631 return -EINVAL;
632 }
633
634 return 0;
635}
636
637static int radeon_uvd_cs_reg(struct radeon_cs_parser *p,
638 struct radeon_cs_packet *pkt,
639 int *data0, int *data1,
640 unsigned buf_sizes[],
641 bool *has_msg_cmd)
642{
643 int i, r;
644
645 p->idx++;
646 for (i = 0; i <= pkt->count; ++i) {
647 switch (pkt->reg + i*4) {
648 case UVD_GPCOM_VCPU_DATA0:
649 *data0 = p->idx;
650 break;
651 case UVD_GPCOM_VCPU_DATA1:
652 *data1 = p->idx;
653 break;
654 case UVD_GPCOM_VCPU_CMD:
655 r = radeon_uvd_cs_reloc(p, data0: *data0, data1: *data1,
656 buf_sizes, has_msg_cmd);
657 if (r)
658 return r;
659 break;
660 case UVD_ENGINE_CNTL:
661 case UVD_NO_OP:
662 break;
663 default:
664 DRM_ERROR("Invalid reg 0x%X!\n",
665 pkt->reg + i*4);
666 return -EINVAL;
667 }
668 p->idx++;
669 }
670 return 0;
671}
672
673int radeon_uvd_cs_parse(struct radeon_cs_parser *p)
674{
675 struct radeon_cs_packet pkt;
676 int r, data0 = 0, data1 = 0;
677
678 /* does the IB has a msg command */
679 bool has_msg_cmd = false;
680
681 /* minimum buffer sizes */
682 unsigned buf_sizes[] = {
683 [0x00000000] = 2048,
684 [0x00000001] = 32 * 1024 * 1024,
685 [0x00000002] = 2048 * 1152 * 3,
686 [0x00000003] = 2048,
687 };
688
689 if (p->chunk_ib->length_dw % 16) {
690 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
691 p->chunk_ib->length_dw);
692 return -EINVAL;
693 }
694
695 if (p->chunk_relocs == NULL) {
696 DRM_ERROR("No relocation chunk !\n");
697 return -EINVAL;
698 }
699
700
701 do {
702 r = radeon_cs_packet_parse(p, pkt: &pkt, idx: p->idx);
703 if (r)
704 return r;
705 switch (pkt.type) {
706 case RADEON_PACKET_TYPE0:
707 r = radeon_uvd_cs_reg(p, pkt: &pkt, data0: &data0, data1: &data1,
708 buf_sizes, has_msg_cmd: &has_msg_cmd);
709 if (r)
710 return r;
711 break;
712 case RADEON_PACKET_TYPE2:
713 p->idx += pkt.count + 2;
714 break;
715 default:
716 DRM_ERROR("Unknown packet type %d !\n", pkt.type);
717 return -EINVAL;
718 }
719 } while (p->idx < p->chunk_ib->length_dw);
720
721 if (!has_msg_cmd) {
722 DRM_ERROR("UVD-IBs need a msg command!\n");
723 return -EINVAL;
724 }
725
726 return 0;
727}
728
729static int radeon_uvd_send_msg(struct radeon_device *rdev,
730 int ring, uint64_t addr,
731 struct radeon_fence **fence)
732{
733 struct radeon_ib ib;
734 int i, r;
735
736 r = radeon_ib_get(rdev, ring, ib: &ib, NULL, size: 64);
737 if (r)
738 return r;
739
740 ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0);
741 ib.ptr[1] = addr;
742 ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0);
743 ib.ptr[3] = addr >> 32;
744 ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0);
745 ib.ptr[5] = 0;
746 for (i = 6; i < 16; i += 2) {
747 ib.ptr[i] = PACKET0(UVD_NO_OP, 0);
748 ib.ptr[i+1] = 0;
749 }
750 ib.length_dw = 16;
751
752 r = radeon_ib_schedule(rdev, ib: &ib, NULL, hdp_flush: false);
753
754 if (fence)
755 *fence = radeon_fence_ref(fence: ib.fence);
756
757 radeon_ib_free(rdev, ib: &ib);
758 return r;
759}
760
761/*
762 * multiple fence commands without any stream commands in between can
763 * crash the vcpu so just try to emmit a dummy create/destroy msg to
764 * avoid this
765 */
766int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
767 uint32_t handle, struct radeon_fence **fence)
768{
769 /* we use the last page of the vcpu bo for the UVD message */
770 uint64_t offs = radeon_bo_size(bo: rdev->uvd.vcpu_bo) -
771 RADEON_GPU_PAGE_SIZE;
772
773 uint32_t __iomem *msg = (void __iomem *)(rdev->uvd.cpu_addr + offs);
774 uint64_t addr = rdev->uvd.gpu_addr + offs;
775
776 int r, i;
777
778 r = radeon_bo_reserve(bo: rdev->uvd.vcpu_bo, no_intr: true);
779 if (r)
780 return r;
781
782 /* stitch together an UVD create msg */
783 writel(val: (__force u32)cpu_to_le32(0x00000de4), addr: &msg[0]);
784 writel(val: 0x0, addr: (void __iomem *)&msg[1]);
785 writel(val: (__force u32)cpu_to_le32(handle), addr: &msg[2]);
786 writel(val: 0x0, addr: &msg[3]);
787 writel(val: 0x0, addr: &msg[4]);
788 writel(val: 0x0, addr: &msg[5]);
789 writel(val: 0x0, addr: &msg[6]);
790 writel(val: (__force u32)cpu_to_le32(0x00000780), addr: &msg[7]);
791 writel(val: (__force u32)cpu_to_le32(0x00000440), addr: &msg[8]);
792 writel(val: 0x0, addr: &msg[9]);
793 writel(val: (__force u32)cpu_to_le32(0x01b37000), addr: &msg[10]);
794 for (i = 11; i < 1024; ++i)
795 writel(val: 0x0, addr: &msg[i]);
796
797 r = radeon_uvd_send_msg(rdev, ring, addr, fence);
798 radeon_bo_unreserve(bo: rdev->uvd.vcpu_bo);
799 return r;
800}
801
802int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
803 uint32_t handle, struct radeon_fence **fence)
804{
805 /* we use the last page of the vcpu bo for the UVD message */
806 uint64_t offs = radeon_bo_size(bo: rdev->uvd.vcpu_bo) -
807 RADEON_GPU_PAGE_SIZE;
808
809 uint32_t __iomem *msg = (void __iomem *)(rdev->uvd.cpu_addr + offs);
810 uint64_t addr = rdev->uvd.gpu_addr + offs;
811
812 int r, i;
813
814 r = radeon_bo_reserve(bo: rdev->uvd.vcpu_bo, no_intr: true);
815 if (r)
816 return r;
817
818 /* stitch together an UVD destroy msg */
819 writel(val: (__force u32)cpu_to_le32(0x00000de4), addr: &msg[0]);
820 writel(val: (__force u32)cpu_to_le32(0x00000002), addr: &msg[1]);
821 writel(val: (__force u32)cpu_to_le32(handle), addr: &msg[2]);
822 writel(val: 0x0, addr: &msg[3]);
823 for (i = 4; i < 1024; ++i)
824 writel(val: 0x0, addr: &msg[i]);
825
826 r = radeon_uvd_send_msg(rdev, ring, addr, fence);
827 radeon_bo_unreserve(bo: rdev->uvd.vcpu_bo);
828 return r;
829}
830
831/**
832 * radeon_uvd_count_handles - count number of open streams
833 *
834 * @rdev: radeon_device pointer
835 * @sd: number of SD streams
836 * @hd: number of HD streams
837 *
838 * Count the number of open SD/HD streams as a hint for power mangement
839 */
840static void radeon_uvd_count_handles(struct radeon_device *rdev,
841 unsigned *sd, unsigned *hd)
842{
843 unsigned i;
844
845 *sd = 0;
846 *hd = 0;
847
848 for (i = 0; i < rdev->uvd.max_handles; ++i) {
849 if (!atomic_read(v: &rdev->uvd.handles[i]))
850 continue;
851
852 if (rdev->uvd.img_size[i] >= 720*576)
853 ++(*hd);
854 else
855 ++(*sd);
856 }
857}
858
859static void radeon_uvd_idle_work_handler(struct work_struct *work)
860{
861 struct radeon_device *rdev =
862 container_of(work, struct radeon_device, uvd.idle_work.work);
863
864 if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) {
865 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
866 radeon_uvd_count_handles(rdev, sd: &rdev->pm.dpm.sd,
867 hd: &rdev->pm.dpm.hd);
868 radeon_dpm_enable_uvd(rdev, enable: false);
869 } else {
870 radeon_set_uvd_clocks(rdev, 0, 0);
871 }
872 } else {
873 schedule_delayed_work(dwork: &rdev->uvd.idle_work,
874 delay: msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
875 }
876}
877
878void radeon_uvd_note_usage(struct radeon_device *rdev)
879{
880 bool streams_changed = false;
881 bool set_clocks = !cancel_delayed_work_sync(dwork: &rdev->uvd.idle_work);
882 set_clocks &= schedule_delayed_work(dwork: &rdev->uvd.idle_work,
883 delay: msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
884
885 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
886 unsigned hd = 0, sd = 0;
887 radeon_uvd_count_handles(rdev, sd: &sd, hd: &hd);
888 if ((rdev->pm.dpm.sd != sd) ||
889 (rdev->pm.dpm.hd != hd)) {
890 rdev->pm.dpm.sd = sd;
891 rdev->pm.dpm.hd = hd;
892 /* disable this for now */
893 /*streams_changed = true;*/
894 }
895 }
896
897 if (set_clocks || streams_changed) {
898 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
899 radeon_dpm_enable_uvd(rdev, enable: true);
900 } else {
901 radeon_set_uvd_clocks(rdev, 53300, 40000);
902 }
903 }
904}
905
906static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq,
907 unsigned target_freq,
908 unsigned pd_min,
909 unsigned pd_even)
910{
911 unsigned post_div = vco_freq / target_freq;
912
913 /* adjust to post divider minimum value */
914 if (post_div < pd_min)
915 post_div = pd_min;
916
917 /* we alway need a frequency less than or equal the target */
918 if ((vco_freq / post_div) > target_freq)
919 post_div += 1;
920
921 /* post dividers above a certain value must be even */
922 if (post_div > pd_even && post_div % 2)
923 post_div += 1;
924
925 return post_div;
926}
927
928/**
929 * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers
930 *
931 * @rdev: radeon_device pointer
932 * @vclk: wanted VCLK
933 * @dclk: wanted DCLK
934 * @vco_min: minimum VCO frequency
935 * @vco_max: maximum VCO frequency
936 * @fb_factor: factor to multiply vco freq with
937 * @fb_mask: limit and bitmask for feedback divider
938 * @pd_min: post divider minimum
939 * @pd_max: post divider maximum
940 * @pd_even: post divider must be even above this value
941 * @optimal_fb_div: resulting feedback divider
942 * @optimal_vclk_div: resulting vclk post divider
943 * @optimal_dclk_div: resulting dclk post divider
944 *
945 * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
946 * Returns zero on success -EINVAL on error.
947 */
948int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev,
949 unsigned vclk, unsigned dclk,
950 unsigned vco_min, unsigned vco_max,
951 unsigned fb_factor, unsigned fb_mask,
952 unsigned pd_min, unsigned pd_max,
953 unsigned pd_even,
954 unsigned *optimal_fb_div,
955 unsigned *optimal_vclk_div,
956 unsigned *optimal_dclk_div)
957{
958 unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq;
959
960 /* start off with something large */
961 unsigned optimal_score = ~0;
962
963 /* loop through vco from low to high */
964 vco_min = max(max(vco_min, vclk), dclk);
965 for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
966
967 uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
968 unsigned vclk_div, dclk_div, score;
969
970 do_div(fb_div, ref_freq);
971
972 /* fb div out of range ? */
973 if (fb_div > fb_mask)
974 break; /* it can oly get worse */
975
976 fb_div &= fb_mask;
977
978 /* calc vclk divider with current vco freq */
979 vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, target_freq: vclk,
980 pd_min, pd_even);
981 if (vclk_div > pd_max)
982 break; /* vco is too big, it has to stop */
983
984 /* calc dclk divider with current vco freq */
985 dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, target_freq: dclk,
986 pd_min, pd_even);
987 if (dclk_div > pd_max)
988 break; /* vco is too big, it has to stop */
989
990 /* calc score with current vco freq */
991 score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
992
993 /* determine if this vco setting is better than current optimal settings */
994 if (score < optimal_score) {
995 *optimal_fb_div = fb_div;
996 *optimal_vclk_div = vclk_div;
997 *optimal_dclk_div = dclk_div;
998 optimal_score = score;
999 if (optimal_score == 0)
1000 break; /* it can't get better than this */
1001 }
1002 }
1003
1004 /* did we found a valid setup ? */
1005 if (optimal_score == ~0)
1006 return -EINVAL;
1007
1008 return 0;
1009}
1010
1011int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
1012 unsigned cg_upll_func_cntl)
1013{
1014 unsigned i;
1015
1016 /* make sure UPLL_CTLREQ is deasserted */
1017 WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
1018
1019 mdelay(10);
1020
1021 /* assert UPLL_CTLREQ */
1022 WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
1023
1024 /* wait for CTLACK and CTLACK2 to get asserted */
1025 for (i = 0; i < 100; ++i) {
1026 uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
1027 if ((RREG32(cg_upll_func_cntl) & mask) == mask)
1028 break;
1029 mdelay(10);
1030 }
1031
1032 /* deassert UPLL_CTLREQ */
1033 WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
1034
1035 if (i == 100) {
1036 DRM_ERROR("Timeout setting UVD clocks!\n");
1037 return -ETIMEDOUT;
1038 }
1039
1040 return 0;
1041}
1042

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source code of linux/drivers/gpu/drm/radeon/radeon_uvd.c