2 * Copyright 2013 Advanced Micro Devices, Inc.
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:
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.
21 * The above copyright notice and this permission notice (including the
22 * next paragraph) shall be included in all copies or substantial portions
25 * Authors: Christian König <christian.koenig@amd.com>
28 #include <linux/firmware.h>
29 #include <linux/module.h>
34 #include "radeon_asic.h"
37 /* 1 second timeout */
38 #define VCE_IDLE_TIMEOUT_MS 1000
41 #define FIRMWARE_BONAIRE "radeon/BONAIRE_vce.bin"
43 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
45 static void radeon_vce_idle_work_handler(struct work_struct *work);
48 * radeon_vce_init - allocate memory, load vce firmware
50 * @rdev: radeon_device pointer
52 * First step to get VCE online, allocate memory and load the firmware
54 int radeon_vce_init(struct radeon_device *rdev)
56 static const char *fw_version = "[ATI LIB=VCEFW,";
57 static const char *fb_version = "[ATI LIB=VCEFWSTATS,";
59 const char *fw_name, *c;
60 uint8_t start, mid, end;
63 INIT_DELAYED_WORK(&rdev->vce.idle_work, radeon_vce_idle_work_handler);
65 switch (rdev->family) {
71 fw_name = FIRMWARE_BONAIRE;
78 r = request_firmware(&rdev->vce_fw, fw_name, rdev->dev);
80 dev_err(rdev->dev, "radeon_vce: Can't load firmware \"%s\"\n",
85 /* search for firmware version */
87 size = rdev->vce_fw->size - strlen(fw_version) - 9;
88 c = rdev->vce_fw->data;
89 for (;size > 0; --size, ++c)
90 if (strncmp(c, fw_version, strlen(fw_version)) == 0)
96 c += strlen(fw_version);
97 if (sscanf(c, "%2hhd.%2hhd.%2hhd]", &start, &mid, &end) != 3)
100 /* search for feedback version */
102 size = rdev->vce_fw->size - strlen(fb_version) - 3;
103 c = rdev->vce_fw->data;
104 for (;size > 0; --size, ++c)
105 if (strncmp(c, fb_version, strlen(fb_version)) == 0)
111 c += strlen(fb_version);
112 if (sscanf(c, "%2u]", &rdev->vce.fb_version) != 1)
115 DRM_INFO("Found VCE firmware/feedback version %hhd.%hhd.%hhd / %d!\n",
116 start, mid, end, rdev->vce.fb_version);
118 rdev->vce.fw_version = (start << 24) | (mid << 16) | (end << 8);
120 /* we can only work with this fw version for now */
121 if (rdev->vce.fw_version != ((40 << 24) | (2 << 16) | (2 << 8)))
124 /* allocate firmware, stack and heap BO */
126 size = RADEON_GPU_PAGE_ALIGN(rdev->vce_fw->size) +
127 RADEON_VCE_STACK_SIZE + RADEON_VCE_HEAP_SIZE;
128 r = radeon_bo_create(rdev, size, PAGE_SIZE, true,
129 RADEON_GEM_DOMAIN_VRAM, 0, NULL, NULL,
132 dev_err(rdev->dev, "(%d) failed to allocate VCE bo\n", r);
136 r = radeon_bo_reserve(rdev->vce.vcpu_bo, false);
138 radeon_bo_unref(&rdev->vce.vcpu_bo);
139 dev_err(rdev->dev, "(%d) failed to reserve VCE bo\n", r);
143 r = radeon_bo_pin(rdev->vce.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
144 &rdev->vce.gpu_addr);
145 radeon_bo_unreserve(rdev->vce.vcpu_bo);
147 radeon_bo_unref(&rdev->vce.vcpu_bo);
148 dev_err(rdev->dev, "(%d) VCE bo pin failed\n", r);
152 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
153 atomic_set(&rdev->vce.handles[i], 0);
154 rdev->vce.filp[i] = NULL;
161 * radeon_vce_fini - free memory
163 * @rdev: radeon_device pointer
165 * Last step on VCE teardown, free firmware memory
167 void radeon_vce_fini(struct radeon_device *rdev)
169 if (rdev->vce.vcpu_bo == NULL)
172 radeon_bo_unref(&rdev->vce.vcpu_bo);
174 release_firmware(rdev->vce_fw);
178 * radeon_vce_suspend - unpin VCE fw memory
180 * @rdev: radeon_device pointer
183 int radeon_vce_suspend(struct radeon_device *rdev)
187 if (rdev->vce.vcpu_bo == NULL)
190 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i)
191 if (atomic_read(&rdev->vce.handles[i]))
194 if (i == RADEON_MAX_VCE_HANDLES)
197 /* TODO: suspending running encoding sessions isn't supported */
202 * radeon_vce_resume - pin VCE fw memory
204 * @rdev: radeon_device pointer
207 int radeon_vce_resume(struct radeon_device *rdev)
212 if (rdev->vce.vcpu_bo == NULL)
215 r = radeon_bo_reserve(rdev->vce.vcpu_bo, false);
217 dev_err(rdev->dev, "(%d) failed to reserve VCE bo\n", r);
221 r = radeon_bo_kmap(rdev->vce.vcpu_bo, &cpu_addr);
223 radeon_bo_unreserve(rdev->vce.vcpu_bo);
224 dev_err(rdev->dev, "(%d) VCE map failed\n", r);
228 memcpy(cpu_addr, rdev->vce_fw->data, rdev->vce_fw->size);
230 radeon_bo_kunmap(rdev->vce.vcpu_bo);
232 radeon_bo_unreserve(rdev->vce.vcpu_bo);
238 * radeon_vce_idle_work_handler - power off VCE
240 * @work: pointer to work structure
242 * power of VCE when it's not used any more
244 static void radeon_vce_idle_work_handler(struct work_struct *work)
246 struct radeon_device *rdev =
247 container_of(work, struct radeon_device, vce.idle_work.work);
249 if ((radeon_fence_count_emitted(rdev, TN_RING_TYPE_VCE1_INDEX) == 0) &&
250 (radeon_fence_count_emitted(rdev, TN_RING_TYPE_VCE2_INDEX) == 0)) {
251 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
252 radeon_dpm_enable_vce(rdev, false);
254 radeon_set_vce_clocks(rdev, 0, 0);
257 schedule_delayed_work(&rdev->vce.idle_work,
258 msecs_to_jiffies(VCE_IDLE_TIMEOUT_MS));
263 * radeon_vce_note_usage - power up VCE
265 * @rdev: radeon_device pointer
267 * Make sure VCE is powerd up when we want to use it
269 void radeon_vce_note_usage(struct radeon_device *rdev)
271 bool streams_changed = false;
272 bool set_clocks = !cancel_delayed_work_sync(&rdev->vce.idle_work);
273 set_clocks &= schedule_delayed_work(&rdev->vce.idle_work,
274 msecs_to_jiffies(VCE_IDLE_TIMEOUT_MS));
276 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
277 /* XXX figure out if the streams changed */
278 streams_changed = false;
281 if (set_clocks || streams_changed) {
282 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
283 radeon_dpm_enable_vce(rdev, true);
285 radeon_set_vce_clocks(rdev, 53300, 40000);
291 * radeon_vce_free_handles - free still open VCE handles
293 * @rdev: radeon_device pointer
294 * @filp: drm file pointer
296 * Close all VCE handles still open by this file pointer
298 void radeon_vce_free_handles(struct radeon_device *rdev, struct drm_file *filp)
301 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
302 uint32_t handle = atomic_read(&rdev->vce.handles[i]);
303 if (!handle || rdev->vce.filp[i] != filp)
306 radeon_vce_note_usage(rdev);
308 r = radeon_vce_get_destroy_msg(rdev, TN_RING_TYPE_VCE1_INDEX,
311 DRM_ERROR("Error destroying VCE handle (%d)!\n", r);
313 rdev->vce.filp[i] = NULL;
314 atomic_set(&rdev->vce.handles[i], 0);
319 * radeon_vce_get_create_msg - generate a VCE create msg
321 * @rdev: radeon_device pointer
322 * @ring: ring we should submit the msg to
323 * @handle: VCE session handle to use
324 * @fence: optional fence to return
326 * Open up a stream for HW test
328 int radeon_vce_get_create_msg(struct radeon_device *rdev, int ring,
329 uint32_t handle, struct radeon_fence **fence)
331 const unsigned ib_size_dw = 1024;
336 r = radeon_ib_get(rdev, ring, &ib, NULL, ib_size_dw * 4);
338 DRM_ERROR("radeon: failed to get ib (%d).\n", r);
342 dummy = ib.gpu_addr + 1024;
344 /* stitch together an VCE create msg */
346 ib.ptr[ib.length_dw++] = 0x0000000c; /* len */
347 ib.ptr[ib.length_dw++] = 0x00000001; /* session cmd */
348 ib.ptr[ib.length_dw++] = handle;
350 ib.ptr[ib.length_dw++] = 0x00000030; /* len */
351 ib.ptr[ib.length_dw++] = 0x01000001; /* create cmd */
352 ib.ptr[ib.length_dw++] = 0x00000000;
353 ib.ptr[ib.length_dw++] = 0x00000042;
354 ib.ptr[ib.length_dw++] = 0x0000000a;
355 ib.ptr[ib.length_dw++] = 0x00000001;
356 ib.ptr[ib.length_dw++] = 0x00000080;
357 ib.ptr[ib.length_dw++] = 0x00000060;
358 ib.ptr[ib.length_dw++] = 0x00000100;
359 ib.ptr[ib.length_dw++] = 0x00000100;
360 ib.ptr[ib.length_dw++] = 0x0000000c;
361 ib.ptr[ib.length_dw++] = 0x00000000;
363 ib.ptr[ib.length_dw++] = 0x00000014; /* len */
364 ib.ptr[ib.length_dw++] = 0x05000005; /* feedback buffer */
365 ib.ptr[ib.length_dw++] = upper_32_bits(dummy);
366 ib.ptr[ib.length_dw++] = dummy;
367 ib.ptr[ib.length_dw++] = 0x00000001;
369 for (i = ib.length_dw; i < ib_size_dw; ++i)
372 r = radeon_ib_schedule(rdev, &ib, NULL, false);
374 DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
378 *fence = radeon_fence_ref(ib.fence);
380 radeon_ib_free(rdev, &ib);
386 * radeon_vce_get_destroy_msg - generate a VCE destroy msg
388 * @rdev: radeon_device pointer
389 * @ring: ring we should submit the msg to
390 * @handle: VCE session handle to use
391 * @fence: optional fence to return
393 * Close up a stream for HW test or if userspace failed to do so
395 int radeon_vce_get_destroy_msg(struct radeon_device *rdev, int ring,
396 uint32_t handle, struct radeon_fence **fence)
398 const unsigned ib_size_dw = 1024;
403 r = radeon_ib_get(rdev, ring, &ib, NULL, ib_size_dw * 4);
405 DRM_ERROR("radeon: failed to get ib (%d).\n", r);
409 dummy = ib.gpu_addr + 1024;
411 /* stitch together an VCE destroy msg */
413 ib.ptr[ib.length_dw++] = 0x0000000c; /* len */
414 ib.ptr[ib.length_dw++] = 0x00000001; /* session cmd */
415 ib.ptr[ib.length_dw++] = handle;
417 ib.ptr[ib.length_dw++] = 0x00000014; /* len */
418 ib.ptr[ib.length_dw++] = 0x05000005; /* feedback buffer */
419 ib.ptr[ib.length_dw++] = upper_32_bits(dummy);
420 ib.ptr[ib.length_dw++] = dummy;
421 ib.ptr[ib.length_dw++] = 0x00000001;
423 ib.ptr[ib.length_dw++] = 0x00000008; /* len */
424 ib.ptr[ib.length_dw++] = 0x02000001; /* destroy cmd */
426 for (i = ib.length_dw; i < ib_size_dw; ++i)
429 r = radeon_ib_schedule(rdev, &ib, NULL, false);
431 DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
435 *fence = radeon_fence_ref(ib.fence);
437 radeon_ib_free(rdev, &ib);
443 * radeon_vce_cs_reloc - command submission relocation
446 * @lo: address of lower dword
447 * @hi: address of higher dword
448 * @size: size of checker for relocation buffer
450 * Patch relocation inside command stream with real buffer address
452 int radeon_vce_cs_reloc(struct radeon_cs_parser *p, int lo, int hi,
455 struct radeon_cs_chunk *relocs_chunk;
456 struct radeon_bo_list *reloc;
457 uint64_t start, end, offset;
460 relocs_chunk = p->chunk_relocs;
461 offset = radeon_get_ib_value(p, lo);
462 idx = radeon_get_ib_value(p, hi);
464 if (idx >= relocs_chunk->length_dw) {
465 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
466 idx, relocs_chunk->length_dw);
470 reloc = &p->relocs[(idx / 4)];
471 start = reloc->gpu_offset;
472 end = start + radeon_bo_size(reloc->robj);
475 p->ib.ptr[lo] = start & 0xFFFFFFFF;
476 p->ib.ptr[hi] = start >> 32;
479 DRM_ERROR("invalid reloc offset %llX!\n", offset);
482 if ((end - start) < size) {
483 DRM_ERROR("buffer to small (%d / %d)!\n",
484 (unsigned)(end - start), size);
492 * radeon_vce_validate_handle - validate stream handle
495 * @handle: handle to validate
497 * Validates the handle and return the found session index or -EINVAL
498 * we we don't have another free session index.
500 int radeon_vce_validate_handle(struct radeon_cs_parser *p, uint32_t handle)
504 /* validate the handle */
505 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
506 if (atomic_read(&p->rdev->vce.handles[i]) == handle)
510 /* handle not found try to alloc a new one */
511 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
512 if (!atomic_cmpxchg(&p->rdev->vce.handles[i], 0, handle)) {
513 p->rdev->vce.filp[i] = p->filp;
514 p->rdev->vce.img_size[i] = 0;
519 DRM_ERROR("No more free VCE handles!\n");
524 * radeon_vce_cs_parse - parse and validate the command stream
529 int radeon_vce_cs_parse(struct radeon_cs_parser *p)
531 int session_idx = -1;
532 bool destroyed = false;
533 uint32_t tmp, handle = 0;
534 uint32_t *size = &tmp;
537 while (p->idx < p->chunk_ib->length_dw) {
538 uint32_t len = radeon_get_ib_value(p, p->idx);
539 uint32_t cmd = radeon_get_ib_value(p, p->idx + 1);
541 if ((len < 8) || (len & 3)) {
542 DRM_ERROR("invalid VCE command length (%d)!\n", len);
547 DRM_ERROR("No other command allowed after destroy!\n");
552 case 0x00000001: // session
553 handle = radeon_get_ib_value(p, p->idx + 2);
554 session_idx = radeon_vce_validate_handle(p, handle);
557 size = &p->rdev->vce.img_size[session_idx];
560 case 0x00000002: // task info
563 case 0x01000001: // create
564 *size = radeon_get_ib_value(p, p->idx + 8) *
565 radeon_get_ib_value(p, p->idx + 10) *
569 case 0x04000001: // config extension
570 case 0x04000002: // pic control
571 case 0x04000005: // rate control
572 case 0x04000007: // motion estimation
573 case 0x04000008: // rdo
576 case 0x03000001: // encode
577 r = radeon_vce_cs_reloc(p, p->idx + 10, p->idx + 9,
582 r = radeon_vce_cs_reloc(p, p->idx + 12, p->idx + 11,
588 case 0x02000001: // destroy
592 case 0x05000001: // context buffer
593 r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
599 case 0x05000004: // video bitstream buffer
600 tmp = radeon_get_ib_value(p, p->idx + 4);
601 r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
607 case 0x05000005: // feedback buffer
608 r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
615 DRM_ERROR("invalid VCE command (0x%x)!\n", cmd);
619 if (session_idx == -1) {
620 DRM_ERROR("no session command at start of IB\n");
628 /* IB contains a destroy msg, free the handle */
629 for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i)
630 atomic_cmpxchg(&p->rdev->vce.handles[i], handle, 0);
637 * radeon_vce_semaphore_emit - emit a semaphore command
639 * @rdev: radeon_device pointer
640 * @ring: engine to use
641 * @semaphore: address of semaphore
642 * @emit_wait: true=emit wait, false=emit signal
645 bool radeon_vce_semaphore_emit(struct radeon_device *rdev,
646 struct radeon_ring *ring,
647 struct radeon_semaphore *semaphore,
650 uint64_t addr = semaphore->gpu_addr;
652 radeon_ring_write(ring, VCE_CMD_SEMAPHORE);
653 radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF);
654 radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF);
655 radeon_ring_write(ring, 0x01003000 | (emit_wait ? 1 : 0));
657 radeon_ring_write(ring, VCE_CMD_END);
663 * radeon_vce_ib_execute - execute indirect buffer
665 * @rdev: radeon_device pointer
666 * @ib: the IB to execute
669 void radeon_vce_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
671 struct radeon_ring *ring = &rdev->ring[ib->ring];
672 radeon_ring_write(ring, VCE_CMD_IB);
673 radeon_ring_write(ring, ib->gpu_addr);
674 radeon_ring_write(ring, upper_32_bits(ib->gpu_addr));
675 radeon_ring_write(ring, ib->length_dw);
679 * radeon_vce_fence_emit - add a fence command to the ring
681 * @rdev: radeon_device pointer
685 void radeon_vce_fence_emit(struct radeon_device *rdev,
686 struct radeon_fence *fence)
688 struct radeon_ring *ring = &rdev->ring[fence->ring];
689 uint64_t addr = rdev->fence_drv[fence->ring].gpu_addr;
691 radeon_ring_write(ring, VCE_CMD_FENCE);
692 radeon_ring_write(ring, addr);
693 radeon_ring_write(ring, upper_32_bits(addr));
694 radeon_ring_write(ring, fence->seq);
695 radeon_ring_write(ring, VCE_CMD_TRAP);
696 radeon_ring_write(ring, VCE_CMD_END);
700 * radeon_vce_ring_test - test if VCE ring is working
702 * @rdev: radeon_device pointer
703 * @ring: the engine to test on
706 int radeon_vce_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
708 uint32_t rptr = vce_v1_0_get_rptr(rdev, ring);
712 r = radeon_ring_lock(rdev, ring, 16);
714 DRM_ERROR("radeon: vce failed to lock ring %d (%d).\n",
718 radeon_ring_write(ring, VCE_CMD_END);
719 radeon_ring_unlock_commit(rdev, ring, false);
721 for (i = 0; i < rdev->usec_timeout; i++) {
722 if (vce_v1_0_get_rptr(rdev, ring) != rptr)
727 if (i < rdev->usec_timeout) {
728 DRM_INFO("ring test on %d succeeded in %d usecs\n",
731 DRM_ERROR("radeon: ring %d test failed\n",
740 * radeon_vce_ib_test - test if VCE IBs are working
742 * @rdev: radeon_device pointer
743 * @ring: the engine to test on
746 int radeon_vce_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
748 struct radeon_fence *fence = NULL;
751 r = radeon_vce_get_create_msg(rdev, ring->idx, 1, NULL);
753 DRM_ERROR("radeon: failed to get create msg (%d).\n", r);
757 r = radeon_vce_get_destroy_msg(rdev, ring->idx, 1, &fence);
759 DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r);
763 r = radeon_fence_wait(fence, false);
765 DRM_ERROR("radeon: fence wait failed (%d).\n", r);
767 DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
770 radeon_fence_unref(&fence);