2 * Copyright 2011 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
28 * Christian König <deathsimple@vodafone.de>
31 #include <linux/firmware.h>
32 #include <linux/module.h>
39 /* 1 second timeout */
40 #define UVD_IDLE_TIMEOUT_MS 1000
43 #define FIRMWARE_RV710 "radeon/RV710_uvd.bin"
44 #define FIRMWARE_CYPRESS "radeon/CYPRESS_uvd.bin"
45 #define FIRMWARE_SUMO "radeon/SUMO_uvd.bin"
46 #define FIRMWARE_TAHITI "radeon/TAHITI_uvd.bin"
47 #define FIRMWARE_BONAIRE "radeon/BONAIRE_uvd.bin"
49 MODULE_FIRMWARE(FIRMWARE_RV710);
50 MODULE_FIRMWARE(FIRMWARE_CYPRESS);
51 MODULE_FIRMWARE(FIRMWARE_SUMO);
52 MODULE_FIRMWARE(FIRMWARE_TAHITI);
53 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
55 static void radeon_uvd_idle_work_handler(struct work_struct *work);
57 int radeon_uvd_init(struct radeon_device *rdev)
59 unsigned long bo_size;
63 INIT_DELAYED_WORK(&rdev->uvd.idle_work, radeon_uvd_idle_work_handler);
65 switch (rdev->family) {
69 fw_name = FIRMWARE_RV710;
77 fw_name = FIRMWARE_CYPRESS;
87 fw_name = FIRMWARE_SUMO;
94 fw_name = FIRMWARE_TAHITI;
100 fw_name = FIRMWARE_BONAIRE;
107 r = request_firmware(&rdev->uvd_fw, fw_name, rdev->dev);
109 dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
114 bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 8) +
115 RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE;
116 r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true,
117 RADEON_GEM_DOMAIN_VRAM, NULL, &rdev->uvd.vcpu_bo);
119 dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r);
123 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
125 radeon_bo_unref(&rdev->uvd.vcpu_bo);
126 dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r);
130 r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
131 &rdev->uvd.gpu_addr);
133 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
134 radeon_bo_unref(&rdev->uvd.vcpu_bo);
135 dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r);
139 r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
141 dev_err(rdev->dev, "(%d) UVD map failed\n", r);
145 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
147 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
148 atomic_set(&rdev->uvd.handles[i], 0);
149 rdev->uvd.filp[i] = NULL;
155 void radeon_uvd_fini(struct radeon_device *rdev)
159 if (rdev->uvd.vcpu_bo == NULL)
162 r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
164 radeon_bo_kunmap(rdev->uvd.vcpu_bo);
165 radeon_bo_unpin(rdev->uvd.vcpu_bo);
166 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
169 radeon_bo_unref(&rdev->uvd.vcpu_bo);
171 release_firmware(rdev->uvd_fw);
174 int radeon_uvd_suspend(struct radeon_device *rdev)
180 if (rdev->uvd.vcpu_bo == NULL)
183 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
184 if (atomic_read(&rdev->uvd.handles[i]))
187 if (i == RADEON_MAX_UVD_HANDLES)
190 size = radeon_bo_size(rdev->uvd.vcpu_bo);
191 size -= rdev->uvd_fw->size;
193 ptr = rdev->uvd.cpu_addr;
194 ptr += rdev->uvd_fw->size;
196 rdev->uvd.saved_bo = kmalloc(size, GFP_KERNEL);
197 memcpy(rdev->uvd.saved_bo, ptr, size);
202 int radeon_uvd_resume(struct radeon_device *rdev)
207 if (rdev->uvd.vcpu_bo == NULL)
210 memcpy(rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->size);
212 size = radeon_bo_size(rdev->uvd.vcpu_bo);
213 size -= rdev->uvd_fw->size;
215 ptr = rdev->uvd.cpu_addr;
216 ptr += rdev->uvd_fw->size;
218 if (rdev->uvd.saved_bo != NULL) {
219 memcpy(ptr, rdev->uvd.saved_bo, size);
220 kfree(rdev->uvd.saved_bo);
221 rdev->uvd.saved_bo = NULL;
223 memset(ptr, 0, size);
228 void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo)
230 rbo->placement.fpfn = 0 >> PAGE_SHIFT;
231 rbo->placement.lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
234 void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
237 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
238 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
239 if (handle != 0 && rdev->uvd.filp[i] == filp) {
240 struct radeon_fence *fence;
242 r = radeon_uvd_get_destroy_msg(rdev,
243 R600_RING_TYPE_UVD_INDEX, handle, &fence);
245 DRM_ERROR("Error destroying UVD (%d)!\n", r);
249 radeon_fence_wait(fence, false);
250 radeon_fence_unref(&fence);
252 rdev->uvd.filp[i] = NULL;
253 atomic_set(&rdev->uvd.handles[i], 0);
258 static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
260 unsigned stream_type = msg[4];
261 unsigned width = msg[6];
262 unsigned height = msg[7];
263 unsigned dpb_size = msg[9];
264 unsigned pitch = msg[28];
266 unsigned width_in_mb = width / 16;
267 unsigned height_in_mb = ALIGN(height / 16, 2);
269 unsigned image_size, tmp, min_dpb_size;
271 image_size = width * height;
272 image_size += image_size / 2;
273 image_size = ALIGN(image_size, 1024);
275 switch (stream_type) {
278 /* reference picture buffer */
279 min_dpb_size = image_size * 17;
281 /* macroblock context buffer */
282 min_dpb_size += width_in_mb * height_in_mb * 17 * 192;
284 /* IT surface buffer */
285 min_dpb_size += width_in_mb * height_in_mb * 32;
290 /* reference picture buffer */
291 min_dpb_size = image_size * 3;
294 min_dpb_size += width_in_mb * height_in_mb * 128;
296 /* IT surface buffer */
297 min_dpb_size += width_in_mb * 64;
299 /* DB surface buffer */
300 min_dpb_size += width_in_mb * 128;
303 tmp = max(width_in_mb, height_in_mb);
304 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
309 /* reference picture buffer */
310 min_dpb_size = image_size * 3;
315 /* reference picture buffer */
316 min_dpb_size = image_size * 3;
319 min_dpb_size += width_in_mb * height_in_mb * 64;
321 /* IT surface buffer */
322 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
326 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
331 DRM_ERROR("Invalid UVD decoding target pitch!\n");
335 if (dpb_size < min_dpb_size) {
336 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
337 dpb_size, min_dpb_size);
341 buf_sizes[0x1] = dpb_size;
342 buf_sizes[0x2] = image_size;
346 static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
347 unsigned offset, unsigned buf_sizes[])
349 int32_t *msg, msg_type, handle;
355 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
359 r = radeon_bo_kmap(bo, &ptr);
361 DRM_ERROR("Failed mapping the UVD message (%d)!\n", r);
371 DRM_ERROR("Invalid UVD handle!\n");
376 /* it's a decode msg, calc buffer sizes */
377 r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
378 radeon_bo_kunmap(bo);
382 } else if (msg_type == 2) {
383 /* it's a destroy msg, free the handle */
384 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
385 atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0);
386 radeon_bo_kunmap(bo);
389 radeon_bo_kunmap(bo);
392 DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
396 /* it's a create msg, no special handling needed */
399 /* create or decode, validate the handle */
400 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
401 if (atomic_read(&p->rdev->uvd.handles[i]) == handle)
405 /* handle not found try to alloc a new one */
406 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
407 if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
408 p->rdev->uvd.filp[i] = p->filp;
413 DRM_ERROR("No more free UVD handles!\n");
417 static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
418 int data0, int data1,
419 unsigned buf_sizes[], bool *has_msg_cmd)
421 struct radeon_cs_chunk *relocs_chunk;
422 struct radeon_cs_reloc *reloc;
423 unsigned idx, cmd, offset;
427 relocs_chunk = &p->chunks[p->chunk_relocs_idx];
428 offset = radeon_get_ib_value(p, data0);
429 idx = radeon_get_ib_value(p, data1);
430 if (idx >= relocs_chunk->length_dw) {
431 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
432 idx, relocs_chunk->length_dw);
436 reloc = p->relocs_ptr[(idx / 4)];
437 start = reloc->lobj.gpu_offset;
438 end = start + radeon_bo_size(reloc->robj);
441 p->ib.ptr[data0] = start & 0xFFFFFFFF;
442 p->ib.ptr[data1] = start >> 32;
444 cmd = radeon_get_ib_value(p, p->idx) >> 1;
447 if ((end - start) < buf_sizes[cmd]) {
448 DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
449 (unsigned)(end - start), buf_sizes[cmd]);
453 } else if (cmd != 0x100) {
454 DRM_ERROR("invalid UVD command %X!\n", cmd);
458 if ((start >> 28) != (end >> 28)) {
459 DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
464 /* TODO: is this still necessary on NI+ ? */
465 if ((cmd == 0 || cmd == 0x3) &&
466 (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
467 DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
474 DRM_ERROR("More than one message in a UVD-IB!\n");
478 r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
481 } else if (!*has_msg_cmd) {
482 DRM_ERROR("Message needed before other commands are send!\n");
489 static int radeon_uvd_cs_reg(struct radeon_cs_parser *p,
490 struct radeon_cs_packet *pkt,
491 int *data0, int *data1,
492 unsigned buf_sizes[],
498 for (i = 0; i <= pkt->count; ++i) {
499 switch (pkt->reg + i*4) {
500 case UVD_GPCOM_VCPU_DATA0:
503 case UVD_GPCOM_VCPU_DATA1:
506 case UVD_GPCOM_VCPU_CMD:
507 r = radeon_uvd_cs_reloc(p, *data0, *data1,
508 buf_sizes, has_msg_cmd);
512 case UVD_ENGINE_CNTL:
515 DRM_ERROR("Invalid reg 0x%X!\n",
524 int radeon_uvd_cs_parse(struct radeon_cs_parser *p)
526 struct radeon_cs_packet pkt;
527 int r, data0 = 0, data1 = 0;
529 /* does the IB has a msg command */
530 bool has_msg_cmd = false;
532 /* minimum buffer sizes */
533 unsigned buf_sizes[] = {
535 [0x00000001] = 32 * 1024 * 1024,
536 [0x00000002] = 2048 * 1152 * 3,
540 if (p->chunks[p->chunk_ib_idx].length_dw % 16) {
541 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
542 p->chunks[p->chunk_ib_idx].length_dw);
546 if (p->chunk_relocs_idx == -1) {
547 DRM_ERROR("No relocation chunk !\n");
553 r = radeon_cs_packet_parse(p, &pkt, p->idx);
557 case RADEON_PACKET_TYPE0:
558 r = radeon_uvd_cs_reg(p, &pkt, &data0, &data1,
559 buf_sizes, &has_msg_cmd);
563 case RADEON_PACKET_TYPE2:
564 p->idx += pkt.count + 2;
567 DRM_ERROR("Unknown packet type %d !\n", pkt.type);
570 } while (p->idx < p->chunks[p->chunk_ib_idx].length_dw);
573 DRM_ERROR("UVD-IBs need a msg command!\n");
580 static int radeon_uvd_send_msg(struct radeon_device *rdev,
581 int ring, struct radeon_bo *bo,
582 struct radeon_fence **fence)
584 struct ttm_validate_buffer tv;
585 struct ww_acquire_ctx ticket;
586 struct list_head head;
591 memset(&tv, 0, sizeof(tv));
594 INIT_LIST_HEAD(&head);
595 list_add(&tv.head, &head);
597 r = ttm_eu_reserve_buffers(&ticket, &head);
601 radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_VRAM);
602 radeon_uvd_force_into_uvd_segment(bo);
604 r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
608 r = radeon_ib_get(rdev, ring, &ib, NULL, 16);
612 addr = radeon_bo_gpu_offset(bo);
613 ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0);
615 ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0);
616 ib.ptr[3] = addr >> 32;
617 ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0);
619 for (i = 6; i < 16; ++i)
620 ib.ptr[i] = PACKET2(0);
623 r = radeon_ib_schedule(rdev, &ib, NULL);
626 ttm_eu_fence_buffer_objects(&ticket, &head, ib.fence);
629 *fence = radeon_fence_ref(ib.fence);
631 radeon_ib_free(rdev, &ib);
632 radeon_bo_unref(&bo);
636 ttm_eu_backoff_reservation(&ticket, &head);
640 /* multiple fence commands without any stream commands in between can
641 crash the vcpu so just try to emmit a dummy create/destroy msg to
643 int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
644 uint32_t handle, struct radeon_fence **fence)
646 struct radeon_bo *bo;
650 r = radeon_bo_create(rdev, 1024, PAGE_SIZE, true,
651 RADEON_GEM_DOMAIN_VRAM, NULL, &bo);
655 r = radeon_bo_reserve(bo, false);
657 radeon_bo_unref(&bo);
661 r = radeon_bo_kmap(bo, (void **)&msg);
663 radeon_bo_unreserve(bo);
664 radeon_bo_unref(&bo);
668 /* stitch together an UVD create msg */
669 msg[0] = cpu_to_le32(0x00000de4);
670 msg[1] = cpu_to_le32(0x00000000);
671 msg[2] = cpu_to_le32(handle);
672 msg[3] = cpu_to_le32(0x00000000);
673 msg[4] = cpu_to_le32(0x00000000);
674 msg[5] = cpu_to_le32(0x00000000);
675 msg[6] = cpu_to_le32(0x00000000);
676 msg[7] = cpu_to_le32(0x00000780);
677 msg[8] = cpu_to_le32(0x00000440);
678 msg[9] = cpu_to_le32(0x00000000);
679 msg[10] = cpu_to_le32(0x01b37000);
680 for (i = 11; i < 1024; ++i)
681 msg[i] = cpu_to_le32(0x0);
683 radeon_bo_kunmap(bo);
684 radeon_bo_unreserve(bo);
686 return radeon_uvd_send_msg(rdev, ring, bo, fence);
689 int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
690 uint32_t handle, struct radeon_fence **fence)
692 struct radeon_bo *bo;
696 r = radeon_bo_create(rdev, 1024, PAGE_SIZE, true,
697 RADEON_GEM_DOMAIN_VRAM, NULL, &bo);
701 r = radeon_bo_reserve(bo, false);
703 radeon_bo_unref(&bo);
707 r = radeon_bo_kmap(bo, (void **)&msg);
709 radeon_bo_unreserve(bo);
710 radeon_bo_unref(&bo);
714 /* stitch together an UVD destroy msg */
715 msg[0] = cpu_to_le32(0x00000de4);
716 msg[1] = cpu_to_le32(0x00000002);
717 msg[2] = cpu_to_le32(handle);
718 msg[3] = cpu_to_le32(0x00000000);
719 for (i = 4; i < 1024; ++i)
720 msg[i] = cpu_to_le32(0x0);
722 radeon_bo_kunmap(bo);
723 radeon_bo_unreserve(bo);
725 return radeon_uvd_send_msg(rdev, ring, bo, fence);
728 static void radeon_uvd_idle_work_handler(struct work_struct *work)
730 struct radeon_device *rdev =
731 container_of(work, struct radeon_device, uvd.idle_work.work);
733 if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) {
734 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
735 mutex_lock(&rdev->pm.mutex);
736 rdev->pm.dpm.uvd_active = false;
737 mutex_unlock(&rdev->pm.mutex);
738 radeon_pm_compute_clocks(rdev);
740 radeon_set_uvd_clocks(rdev, 0, 0);
743 schedule_delayed_work(&rdev->uvd.idle_work,
744 msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
748 void radeon_uvd_note_usage(struct radeon_device *rdev)
750 bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work);
751 set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work,
752 msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
754 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
755 /* XXX pick SD/HD/MVC */
756 radeon_dpm_enable_power_state(rdev, POWER_STATE_TYPE_INTERNAL_UVD);
758 radeon_set_uvd_clocks(rdev, 53300, 40000);
763 static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq,
764 unsigned target_freq,
768 unsigned post_div = vco_freq / target_freq;
770 /* adjust to post divider minimum value */
771 if (post_div < pd_min)
774 /* we alway need a frequency less than or equal the target */
775 if ((vco_freq / post_div) > target_freq)
778 /* post dividers above a certain value must be even */
779 if (post_div > pd_even && post_div % 2)
786 * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers
788 * @rdev: radeon_device pointer
791 * @vco_min: minimum VCO frequency
792 * @vco_max: maximum VCO frequency
793 * @fb_factor: factor to multiply vco freq with
794 * @fb_mask: limit and bitmask for feedback divider
795 * @pd_min: post divider minimum
796 * @pd_max: post divider maximum
797 * @pd_even: post divider must be even above this value
798 * @optimal_fb_div: resulting feedback divider
799 * @optimal_vclk_div: resulting vclk post divider
800 * @optimal_dclk_div: resulting dclk post divider
802 * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
803 * Returns zero on success -EINVAL on error.
805 int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev,
806 unsigned vclk, unsigned dclk,
807 unsigned vco_min, unsigned vco_max,
808 unsigned fb_factor, unsigned fb_mask,
809 unsigned pd_min, unsigned pd_max,
811 unsigned *optimal_fb_div,
812 unsigned *optimal_vclk_div,
813 unsigned *optimal_dclk_div)
815 unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq;
817 /* start off with something large */
818 unsigned optimal_score = ~0;
820 /* loop through vco from low to high */
821 vco_min = max(max(vco_min, vclk), dclk);
822 for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
824 uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
825 unsigned vclk_div, dclk_div, score;
827 do_div(fb_div, ref_freq);
829 /* fb div out of range ? */
830 if (fb_div > fb_mask)
831 break; /* it can oly get worse */
835 /* calc vclk divider with current vco freq */
836 vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk,
838 if (vclk_div > pd_max)
839 break; /* vco is too big, it has to stop */
841 /* calc dclk divider with current vco freq */
842 dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk,
844 if (vclk_div > pd_max)
845 break; /* vco is too big, it has to stop */
847 /* calc score with current vco freq */
848 score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
850 /* determine if this vco setting is better than current optimal settings */
851 if (score < optimal_score) {
852 *optimal_fb_div = fb_div;
853 *optimal_vclk_div = vclk_div;
854 *optimal_dclk_div = dclk_div;
855 optimal_score = score;
856 if (optimal_score == 0)
857 break; /* it can't get better than this */
861 /* did we found a valid setup ? */
862 if (optimal_score == ~0)
868 int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
869 unsigned cg_upll_func_cntl)
873 /* make sure UPLL_CTLREQ is deasserted */
874 WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
878 /* assert UPLL_CTLREQ */
879 WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
881 /* wait for CTLACK and CTLACK2 to get asserted */
882 for (i = 0; i < 100; ++i) {
883 uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
884 if ((RREG32(cg_upll_func_cntl) & mask) == mask)
889 /* deassert UPLL_CTLREQ */
890 WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
893 DRM_ERROR("Timeout setting UVD clocks!\n");