1 /*
2 * Copyright 2013 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 * Authors: Christian König <christian.koenig@amd.com>
26 */
27
28 #include <linux/firmware.h>
29 #include <linux/module.h>
30
31 #include <drm/drm.h>
32
33 #include "radeon.h"
34 #include "radeon_asic.h"
35 #include "sid.h"
36
37 /* 1 second timeout */
38 #define VCE_IDLE_TIMEOUT_MS 1000
39
40 /* Firmware Names */
41 #define FIRMWARE_TAHITI "radeon/TAHITI_vce.bin"
42 #define FIRMWARE_BONAIRE "radeon/BONAIRE_vce.bin"
43
44 MODULE_FIRMWARE(FIRMWARE_TAHITI);
45 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
46
47 static void radeon_vce_idle_work_handler(struct work_struct *work);
48
49 /**
50 * radeon_vce_init - allocate memory, load vce firmware
51 *
52 * @rdev: radeon_device pointer
53 *
54 * First step to get VCE online, allocate memory and load the firmware
55 */
radeon_vce_init(struct radeon_device * rdev)56 int radeon_vce_init(struct radeon_device *rdev)
57 {
58 static const char *fw_version = "[ATI LIB=VCEFW,";
59 static const char *fb_version = "[ATI LIB=VCEFWSTATS,";
60 unsigned long size;
61 const char *fw_name, *c;
62 uint8_t start, mid, end;
63 int i, r;
64
65 INIT_DELAYED_WORK(&rdev->vce.idle_work, radeon_vce_idle_work_handler);
66
67 switch (rdev->family) {
68 case CHIP_TAHITI:
69 case CHIP_PITCAIRN:
70 case CHIP_VERDE:
71 case CHIP_OLAND:
72 case CHIP_ARUBA:
73 fw_name = FIRMWARE_TAHITI;
74 break;
75
76 case CHIP_BONAIRE:
77 case CHIP_KAVERI:
78 case CHIP_KABINI:
79 case CHIP_HAWAII:
80 case CHIP_MULLINS:
81 fw_name = FIRMWARE_BONAIRE;
82 break;
83
84 default:
85 return -EINVAL;
86 }
87
88 r = request_firmware(&rdev->vce_fw, fw_name, rdev->dev);
89 if (r) {
90 dev_err(rdev->dev, "radeon_vce: Can't load firmware \"%s\"\n",
91 fw_name);
92 return r;
93 }
94
95 /* search for firmware version */
96
97 size = rdev->vce_fw->size - strlen(fw_version) - 9;
98 c = rdev->vce_fw->data;
99 for (;size > 0; --size, ++c)
100 if (strncmp(c, fw_version, strlen(fw_version)) == 0)
101 break;
102
103 if (size == 0)
104 return -EINVAL;
105
106 c += strlen(fw_version);
107 if (sscanf(c, "%2hhd.%2hhd.%2hhd]", &start, &mid, &end) != 3)
108 return -EINVAL;
109
110 /* search for feedback version */
111
112 size = rdev->vce_fw->size - strlen(fb_version) - 3;
113 c = rdev->vce_fw->data;
114 for (;size > 0; --size, ++c)
115 if (strncmp(c, fb_version, strlen(fb_version)) == 0)
116 break;
117
118 if (size == 0)
119 return -EINVAL;
120
121 c += strlen(fb_version);
122 if (sscanf(c, "%2u]", &rdev->vce.fb_version) != 1)
123 return -EINVAL;
124
125 DRM_INFO("Found VCE firmware/feedback version %hhd.%hhd.%hhd / %d!\n",
126 start, mid, end, rdev->vce.fb_version);
127
128 rdev->vce.fw_version = (start << 24) | (mid << 16) | (end << 8);
129
130 /* we can only work with this fw version for now */
131 if ((rdev->vce.fw_version != ((40 << 24) | (2 << 16) | (2 << 8))) &&
132 (rdev->vce.fw_version != ((50 << 24) | (0 << 16) | (1 << 8))) &&
133 (rdev->vce.fw_version != ((50 << 24) | (1 << 16) | (2 << 8))))
134 return -EINVAL;
135
136 /* allocate firmware, stack and heap BO */
137
138 if (rdev->family < CHIP_BONAIRE)
139 size = vce_v1_0_bo_size(rdev);
140 else
141 size = vce_v2_0_bo_size(rdev);
142 r = radeon_bo_create(rdev, size, PAGE_SIZE, true,
143 RADEON_GEM_DOMAIN_VRAM, 0, NULL, NULL,
144 &rdev->vce.vcpu_bo);
145 if (r) {
146 dev_err(rdev->dev, "(%d) failed to allocate VCE bo\n", r);
147 return r;
148 }
149
150 r = radeon_bo_reserve(rdev->vce.vcpu_bo, false);
151 if (r) {
152 radeon_bo_unref(&rdev->vce.vcpu_bo);
153 dev_err(rdev->dev, "(%d) failed to reserve VCE bo\n", r);
154 return r;
155 }
156
157 r = radeon_bo_pin(rdev->vce.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
158 &rdev->vce.gpu_addr);
159 radeon_bo_unreserve(rdev->vce.vcpu_bo);
160 if (r) {
161 radeon_bo_unref(&rdev->vce.vcpu_bo);
162 dev_err(rdev->dev, "(%d) VCE bo pin failed\n", r);
163 return r;
164 }
165
166 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
167 atomic_set(&rdev->vce.handles[i], 0);
168 rdev->vce.filp[i] = NULL;
169 }
170
171 return 0;
172 }
173
174 /**
175 * radeon_vce_fini - free memory
176 *
177 * @rdev: radeon_device pointer
178 *
179 * Last step on VCE teardown, free firmware memory
180 */
radeon_vce_fini(struct radeon_device * rdev)181 void radeon_vce_fini(struct radeon_device *rdev)
182 {
183 if (rdev->vce.vcpu_bo == NULL)
184 return;
185
186 radeon_bo_unref(&rdev->vce.vcpu_bo);
187
188 release_firmware(rdev->vce_fw);
189 }
190
191 /**
192 * radeon_vce_suspend - unpin VCE fw memory
193 *
194 * @rdev: radeon_device pointer
195 *
196 */
radeon_vce_suspend(struct radeon_device * rdev)197 int radeon_vce_suspend(struct radeon_device *rdev)
198 {
199 int i;
200
201 if (rdev->vce.vcpu_bo == NULL)
202 return 0;
203
204 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i)
205 if (atomic_read(&rdev->vce.handles[i]))
206 break;
207
208 if (i == RADEON_MAX_VCE_HANDLES)
209 return 0;
210
211 /* TODO: suspending running encoding sessions isn't supported */
212 return -EINVAL;
213 }
214
215 /**
216 * radeon_vce_resume - pin VCE fw memory
217 *
218 * @rdev: radeon_device pointer
219 *
220 */
radeon_vce_resume(struct radeon_device * rdev)221 int radeon_vce_resume(struct radeon_device *rdev)
222 {
223 void *cpu_addr;
224 int r;
225
226 if (rdev->vce.vcpu_bo == NULL)
227 return -EINVAL;
228
229 r = radeon_bo_reserve(rdev->vce.vcpu_bo, false);
230 if (r) {
231 dev_err(rdev->dev, "(%d) failed to reserve VCE bo\n", r);
232 return r;
233 }
234
235 r = radeon_bo_kmap(rdev->vce.vcpu_bo, &cpu_addr);
236 if (r) {
237 radeon_bo_unreserve(rdev->vce.vcpu_bo);
238 dev_err(rdev->dev, "(%d) VCE map failed\n", r);
239 return r;
240 }
241
242 memset(cpu_addr, 0, radeon_bo_size(rdev->vce.vcpu_bo));
243 if (rdev->family < CHIP_BONAIRE)
244 r = vce_v1_0_load_fw(rdev, cpu_addr);
245 else
246 memcpy(cpu_addr, rdev->vce_fw->data, rdev->vce_fw->size);
247
248 radeon_bo_kunmap(rdev->vce.vcpu_bo);
249
250 radeon_bo_unreserve(rdev->vce.vcpu_bo);
251
252 return r;
253 }
254
255 /**
256 * radeon_vce_idle_work_handler - power off VCE
257 *
258 * @work: pointer to work structure
259 *
260 * power of VCE when it's not used any more
261 */
radeon_vce_idle_work_handler(struct work_struct * work)262 static void radeon_vce_idle_work_handler(struct work_struct *work)
263 {
264 struct radeon_device *rdev =
265 container_of(work, struct radeon_device, vce.idle_work.work);
266
267 if ((radeon_fence_count_emitted(rdev, TN_RING_TYPE_VCE1_INDEX) == 0) &&
268 (radeon_fence_count_emitted(rdev, TN_RING_TYPE_VCE2_INDEX) == 0)) {
269 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
270 radeon_dpm_enable_vce(rdev, false);
271 } else {
272 radeon_set_vce_clocks(rdev, 0, 0);
273 }
274 } else {
275 schedule_delayed_work(&rdev->vce.idle_work,
276 msecs_to_jiffies(VCE_IDLE_TIMEOUT_MS));
277 }
278 }
279
280 /**
281 * radeon_vce_note_usage - power up VCE
282 *
283 * @rdev: radeon_device pointer
284 *
285 * Make sure VCE is powerd up when we want to use it
286 */
radeon_vce_note_usage(struct radeon_device * rdev)287 void radeon_vce_note_usage(struct radeon_device *rdev)
288 {
289 bool streams_changed = false;
290 bool set_clocks = !cancel_delayed_work_sync(&rdev->vce.idle_work);
291 set_clocks &= schedule_delayed_work(&rdev->vce.idle_work,
292 msecs_to_jiffies(VCE_IDLE_TIMEOUT_MS));
293
294 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
295 /* XXX figure out if the streams changed */
296 streams_changed = false;
297 }
298
299 if (set_clocks || streams_changed) {
300 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
301 radeon_dpm_enable_vce(rdev, true);
302 } else {
303 radeon_set_vce_clocks(rdev, 53300, 40000);
304 }
305 }
306 }
307
308 /**
309 * radeon_vce_free_handles - free still open VCE handles
310 *
311 * @rdev: radeon_device pointer
312 * @filp: drm file pointer
313 *
314 * Close all VCE handles still open by this file pointer
315 */
radeon_vce_free_handles(struct radeon_device * rdev,struct drm_file * filp)316 void radeon_vce_free_handles(struct radeon_device *rdev, struct drm_file *filp)
317 {
318 int i, r;
319 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
320 uint32_t handle = atomic_read(&rdev->vce.handles[i]);
321 if (!handle || rdev->vce.filp[i] != filp)
322 continue;
323
324 radeon_vce_note_usage(rdev);
325
326 r = radeon_vce_get_destroy_msg(rdev, TN_RING_TYPE_VCE1_INDEX,
327 handle, NULL);
328 if (r)
329 DRM_ERROR("Error destroying VCE handle (%d)!\n", r);
330
331 rdev->vce.filp[i] = NULL;
332 atomic_set(&rdev->vce.handles[i], 0);
333 }
334 }
335
336 /**
337 * radeon_vce_get_create_msg - generate a VCE create msg
338 *
339 * @rdev: radeon_device pointer
340 * @ring: ring we should submit the msg to
341 * @handle: VCE session handle to use
342 * @fence: optional fence to return
343 *
344 * Open up a stream for HW test
345 */
radeon_vce_get_create_msg(struct radeon_device * rdev,int ring,uint32_t handle,struct radeon_fence ** fence)346 int radeon_vce_get_create_msg(struct radeon_device *rdev, int ring,
347 uint32_t handle, struct radeon_fence **fence)
348 {
349 const unsigned ib_size_dw = 1024;
350 struct radeon_ib ib;
351 uint64_t dummy;
352 int i, r;
353
354 r = radeon_ib_get(rdev, ring, &ib, NULL, ib_size_dw * 4);
355 if (r) {
356 DRM_ERROR("radeon: failed to get ib (%d).\n", r);
357 return r;
358 }
359
360 dummy = ib.gpu_addr + 1024;
361
362 /* stitch together an VCE create msg */
363 ib.length_dw = 0;
364 ib.ptr[ib.length_dw++] = cpu_to_le32(0x0000000c); /* len */
365 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001); /* session cmd */
366 ib.ptr[ib.length_dw++] = cpu_to_le32(handle);
367
368 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000030); /* len */
369 ib.ptr[ib.length_dw++] = cpu_to_le32(0x01000001); /* create cmd */
370 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000000);
371 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000042);
372 ib.ptr[ib.length_dw++] = cpu_to_le32(0x0000000a);
373 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001);
374 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000080);
375 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000060);
376 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000100);
377 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000100);
378 ib.ptr[ib.length_dw++] = cpu_to_le32(0x0000000c);
379 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000000);
380
381 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000014); /* len */
382 ib.ptr[ib.length_dw++] = cpu_to_le32(0x05000005); /* feedback buffer */
383 ib.ptr[ib.length_dw++] = cpu_to_le32(upper_32_bits(dummy));
384 ib.ptr[ib.length_dw++] = cpu_to_le32(dummy);
385 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001);
386
387 for (i = ib.length_dw; i < ib_size_dw; ++i)
388 ib.ptr[i] = cpu_to_le32(0x0);
389
390 r = radeon_ib_schedule(rdev, &ib, NULL, false);
391 if (r)
392 DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
393
394
395 if (fence)
396 *fence = radeon_fence_ref(ib.fence);
397
398 radeon_ib_free(rdev, &ib);
399
400 return r;
401 }
402
403 /**
404 * radeon_vce_get_destroy_msg - generate a VCE destroy msg
405 *
406 * @rdev: radeon_device pointer
407 * @ring: ring we should submit the msg to
408 * @handle: VCE session handle to use
409 * @fence: optional fence to return
410 *
411 * Close up a stream for HW test or if userspace failed to do so
412 */
radeon_vce_get_destroy_msg(struct radeon_device * rdev,int ring,uint32_t handle,struct radeon_fence ** fence)413 int radeon_vce_get_destroy_msg(struct radeon_device *rdev, int ring,
414 uint32_t handle, struct radeon_fence **fence)
415 {
416 const unsigned ib_size_dw = 1024;
417 struct radeon_ib ib;
418 uint64_t dummy;
419 int i, r;
420
421 r = radeon_ib_get(rdev, ring, &ib, NULL, ib_size_dw * 4);
422 if (r) {
423 DRM_ERROR("radeon: failed to get ib (%d).\n", r);
424 return r;
425 }
426
427 dummy = ib.gpu_addr + 1024;
428
429 /* stitch together an VCE destroy msg */
430 ib.length_dw = 0;
431 ib.ptr[ib.length_dw++] = cpu_to_le32(0x0000000c); /* len */
432 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001); /* session cmd */
433 ib.ptr[ib.length_dw++] = cpu_to_le32(handle);
434
435 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000014); /* len */
436 ib.ptr[ib.length_dw++] = cpu_to_le32(0x05000005); /* feedback buffer */
437 ib.ptr[ib.length_dw++] = cpu_to_le32(upper_32_bits(dummy));
438 ib.ptr[ib.length_dw++] = cpu_to_le32(dummy);
439 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001);
440
441 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000008); /* len */
442 ib.ptr[ib.length_dw++] = cpu_to_le32(0x02000001); /* destroy cmd */
443
444 for (i = ib.length_dw; i < ib_size_dw; ++i)
445 ib.ptr[i] = cpu_to_le32(0x0);
446
447 r = radeon_ib_schedule(rdev, &ib, NULL, false);
448 if (r) {
449 DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
450 }
451
452 if (fence)
453 *fence = radeon_fence_ref(ib.fence);
454
455 radeon_ib_free(rdev, &ib);
456
457 return r;
458 }
459
460 /**
461 * radeon_vce_cs_reloc - command submission relocation
462 *
463 * @p: parser context
464 * @lo: address of lower dword
465 * @hi: address of higher dword
466 * @size: size of checker for relocation buffer
467 *
468 * Patch relocation inside command stream with real buffer address
469 */
radeon_vce_cs_reloc(struct radeon_cs_parser * p,int lo,int hi,unsigned size)470 int radeon_vce_cs_reloc(struct radeon_cs_parser *p, int lo, int hi,
471 unsigned size)
472 {
473 struct radeon_cs_chunk *relocs_chunk;
474 struct radeon_bo_list *reloc;
475 uint64_t start, end, offset;
476 unsigned idx;
477
478 relocs_chunk = p->chunk_relocs;
479 offset = radeon_get_ib_value(p, lo);
480 idx = radeon_get_ib_value(p, hi);
481
482 if (idx >= relocs_chunk->length_dw) {
483 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
484 idx, relocs_chunk->length_dw);
485 return -EINVAL;
486 }
487
488 reloc = &p->relocs[(idx / 4)];
489 start = reloc->gpu_offset;
490 end = start + radeon_bo_size(reloc->robj);
491 start += offset;
492
493 p->ib.ptr[lo] = start & 0xFFFFFFFF;
494 p->ib.ptr[hi] = start >> 32;
495
496 if (end <= start) {
497 DRM_ERROR("invalid reloc offset %llX!\n", offset);
498 return -EINVAL;
499 }
500 if ((end - start) < size) {
501 DRM_ERROR("buffer to small (%d / %d)!\n",
502 (unsigned)(end - start), size);
503 return -EINVAL;
504 }
505
506 return 0;
507 }
508
509 /**
510 * radeon_vce_validate_handle - validate stream handle
511 *
512 * @p: parser context
513 * @handle: handle to validate
514 * @allocated: allocated a new handle?
515 *
516 * Validates the handle and return the found session index or -EINVAL
517 * we we don't have another free session index.
518 */
radeon_vce_validate_handle(struct radeon_cs_parser * p,uint32_t handle,bool * allocated)519 static int radeon_vce_validate_handle(struct radeon_cs_parser *p,
520 uint32_t handle, bool *allocated)
521 {
522 unsigned i;
523
524 *allocated = false;
525
526 /* validate the handle */
527 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
528 if (atomic_read(&p->rdev->vce.handles[i]) == handle) {
529 if (p->rdev->vce.filp[i] != p->filp) {
530 DRM_ERROR("VCE handle collision detected!\n");
531 return -EINVAL;
532 }
533 return i;
534 }
535 }
536
537 /* handle not found try to alloc a new one */
538 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
539 if (!atomic_cmpxchg(&p->rdev->vce.handles[i], 0, handle)) {
540 p->rdev->vce.filp[i] = p->filp;
541 p->rdev->vce.img_size[i] = 0;
542 *allocated = true;
543 return i;
544 }
545 }
546
547 DRM_ERROR("No more free VCE handles!\n");
548 return -EINVAL;
549 }
550
551 /**
552 * radeon_vce_cs_parse - parse and validate the command stream
553 *
554 * @p: parser context
555 *
556 */
radeon_vce_cs_parse(struct radeon_cs_parser * p)557 int radeon_vce_cs_parse(struct radeon_cs_parser *p)
558 {
559 int session_idx = -1;
560 bool destroyed = false, created = false, allocated = false;
561 uint32_t tmp, handle = 0;
562 uint32_t *size = &tmp;
563 int i, r = 0;
564
565 while (p->idx < p->chunk_ib->length_dw) {
566 uint32_t len = radeon_get_ib_value(p, p->idx);
567 uint32_t cmd = radeon_get_ib_value(p, p->idx + 1);
568
569 if ((len < 8) || (len & 3)) {
570 DRM_ERROR("invalid VCE command length (%d)!\n", len);
571 r = -EINVAL;
572 goto out;
573 }
574
575 if (destroyed) {
576 DRM_ERROR("No other command allowed after destroy!\n");
577 r = -EINVAL;
578 goto out;
579 }
580
581 switch (cmd) {
582 case 0x00000001: // session
583 handle = radeon_get_ib_value(p, p->idx + 2);
584 session_idx = radeon_vce_validate_handle(p, handle,
585 &allocated);
586 if (session_idx < 0)
587 return session_idx;
588 size = &p->rdev->vce.img_size[session_idx];
589 break;
590
591 case 0x00000002: // task info
592 break;
593
594 case 0x01000001: // create
595 created = true;
596 if (!allocated) {
597 DRM_ERROR("Handle already in use!\n");
598 r = -EINVAL;
599 goto out;
600 }
601
602 *size = radeon_get_ib_value(p, p->idx + 8) *
603 radeon_get_ib_value(p, p->idx + 10) *
604 8 * 3 / 2;
605 break;
606
607 case 0x04000001: // config extension
608 case 0x04000002: // pic control
609 case 0x04000005: // rate control
610 case 0x04000007: // motion estimation
611 case 0x04000008: // rdo
612 case 0x04000009: // vui
613 break;
614
615 case 0x03000001: // encode
616 r = radeon_vce_cs_reloc(p, p->idx + 10, p->idx + 9,
617 *size);
618 if (r)
619 goto out;
620
621 r = radeon_vce_cs_reloc(p, p->idx + 12, p->idx + 11,
622 *size / 3);
623 if (r)
624 goto out;
625 break;
626
627 case 0x02000001: // destroy
628 destroyed = true;
629 break;
630
631 case 0x05000001: // context buffer
632 r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
633 *size * 2);
634 if (r)
635 goto out;
636 break;
637
638 case 0x05000004: // video bitstream buffer
639 tmp = radeon_get_ib_value(p, p->idx + 4);
640 r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
641 tmp);
642 if (r)
643 goto out;
644 break;
645
646 case 0x05000005: // feedback buffer
647 r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
648 4096);
649 if (r)
650 goto out;
651 break;
652
653 default:
654 DRM_ERROR("invalid VCE command (0x%x)!\n", cmd);
655 r = -EINVAL;
656 goto out;
657 }
658
659 if (session_idx == -1) {
660 DRM_ERROR("no session command at start of IB\n");
661 r = -EINVAL;
662 goto out;
663 }
664
665 p->idx += len / 4;
666 }
667
668 if (allocated && !created) {
669 DRM_ERROR("New session without create command!\n");
670 r = -ENOENT;
671 }
672
673 out:
674 if ((!r && destroyed) || (r && allocated)) {
675 /*
676 * IB contains a destroy msg or we have allocated an
677 * handle and got an error, anyway free the handle
678 */
679 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i)
680 atomic_cmpxchg(&p->rdev->vce.handles[i], handle, 0);
681 }
682
683 return r;
684 }
685
686 /**
687 * radeon_vce_semaphore_emit - emit a semaphore command
688 *
689 * @rdev: radeon_device pointer
690 * @ring: engine to use
691 * @semaphore: address of semaphore
692 * @emit_wait: true=emit wait, false=emit signal
693 *
694 */
radeon_vce_semaphore_emit(struct radeon_device * rdev,struct radeon_ring * ring,struct radeon_semaphore * semaphore,bool emit_wait)695 bool radeon_vce_semaphore_emit(struct radeon_device *rdev,
696 struct radeon_ring *ring,
697 struct radeon_semaphore *semaphore,
698 bool emit_wait)
699 {
700 uint64_t addr = semaphore->gpu_addr;
701
702 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_SEMAPHORE));
703 radeon_ring_write(ring, cpu_to_le32((addr >> 3) & 0x000FFFFF));
704 radeon_ring_write(ring, cpu_to_le32((addr >> 23) & 0x000FFFFF));
705 radeon_ring_write(ring, cpu_to_le32(0x01003000 | (emit_wait ? 1 : 0)));
706 if (!emit_wait)
707 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_END));
708
709 return true;
710 }
711
712 /**
713 * radeon_vce_ib_execute - execute indirect buffer
714 *
715 * @rdev: radeon_device pointer
716 * @ib: the IB to execute
717 *
718 */
radeon_vce_ib_execute(struct radeon_device * rdev,struct radeon_ib * ib)719 void radeon_vce_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
720 {
721 struct radeon_ring *ring = &rdev->ring[ib->ring];
722 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_IB));
723 radeon_ring_write(ring, cpu_to_le32(ib->gpu_addr));
724 radeon_ring_write(ring, cpu_to_le32(upper_32_bits(ib->gpu_addr)));
725 radeon_ring_write(ring, cpu_to_le32(ib->length_dw));
726 }
727
728 /**
729 * radeon_vce_fence_emit - add a fence command to the ring
730 *
731 * @rdev: radeon_device pointer
732 * @fence: the fence
733 *
734 */
radeon_vce_fence_emit(struct radeon_device * rdev,struct radeon_fence * fence)735 void radeon_vce_fence_emit(struct radeon_device *rdev,
736 struct radeon_fence *fence)
737 {
738 struct radeon_ring *ring = &rdev->ring[fence->ring];
739 uint64_t addr = rdev->fence_drv[fence->ring].gpu_addr;
740
741 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_FENCE));
742 radeon_ring_write(ring, cpu_to_le32(addr));
743 radeon_ring_write(ring, cpu_to_le32(upper_32_bits(addr)));
744 radeon_ring_write(ring, cpu_to_le32(fence->seq));
745 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_TRAP));
746 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_END));
747 }
748
749 /**
750 * radeon_vce_ring_test - test if VCE ring is working
751 *
752 * @rdev: radeon_device pointer
753 * @ring: the engine to test on
754 *
755 */
radeon_vce_ring_test(struct radeon_device * rdev,struct radeon_ring * ring)756 int radeon_vce_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
757 {
758 uint32_t rptr = vce_v1_0_get_rptr(rdev, ring);
759 unsigned i;
760 int r;
761
762 r = radeon_ring_lock(rdev, ring, 16);
763 if (r) {
764 DRM_ERROR("radeon: vce failed to lock ring %d (%d).\n",
765 ring->idx, r);
766 return r;
767 }
768 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_END));
769 radeon_ring_unlock_commit(rdev, ring, false);
770
771 for (i = 0; i < rdev->usec_timeout; i++) {
772 if (vce_v1_0_get_rptr(rdev, ring) != rptr)
773 break;
774 udelay(1);
775 }
776
777 if (i < rdev->usec_timeout) {
778 DRM_INFO("ring test on %d succeeded in %d usecs\n",
779 ring->idx, i);
780 } else {
781 DRM_ERROR("radeon: ring %d test failed\n",
782 ring->idx);
783 r = -ETIMEDOUT;
784 }
785
786 return r;
787 }
788
789 /**
790 * radeon_vce_ib_test - test if VCE IBs are working
791 *
792 * @rdev: radeon_device pointer
793 * @ring: the engine to test on
794 *
795 */
radeon_vce_ib_test(struct radeon_device * rdev,struct radeon_ring * ring)796 int radeon_vce_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
797 {
798 struct radeon_fence *fence = NULL;
799 int r;
800
801 r = radeon_vce_get_create_msg(rdev, ring->idx, 1, NULL);
802 if (r) {
803 DRM_ERROR("radeon: failed to get create msg (%d).\n", r);
804 goto error;
805 }
806
807 r = radeon_vce_get_destroy_msg(rdev, ring->idx, 1, &fence);
808 if (r) {
809 DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r);
810 goto error;
811 }
812
813 r = radeon_fence_wait_timeout(fence, false, usecs_to_jiffies(
814 RADEON_USEC_IB_TEST_TIMEOUT));
815 if (r < 0) {
816 DRM_ERROR("radeon: fence wait failed (%d).\n", r);
817 } else if (r == 0) {
818 DRM_ERROR("radeon: fence wait timed out.\n");
819 r = -ETIMEDOUT;
820 } else {
821 DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
822 r = 0;
823 }
824 error:
825 radeon_fence_unref(&fence);
826 return r;
827 }
828