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e409b128 CK |
1 | /* |
2 | * Copyright 2013 Advanced Micro Devices, Inc. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | * Authors: Christian König <christian.koenig@amd.com> | |
23 | */ | |
24 | ||
25 | #include <drm/drmP.h> | |
26 | #include "radeon.h" | |
27 | #include "radeon_asic.h" | |
28 | #include "nid.h" | |
29 | ||
30 | /** | |
31 | * uvd_v3_1_semaphore_emit - emit semaphore command | |
32 | * | |
33 | * @rdev: radeon_device pointer | |
34 | * @ring: radeon_ring pointer | |
35 | * @semaphore: semaphore to emit commands for | |
36 | * @emit_wait: true if we should emit a wait command | |
37 | * | |
38 | * Emit a semaphore command (either wait or signal) to the UVD ring. | |
39 | */ | |
1654b817 | 40 | bool uvd_v3_1_semaphore_emit(struct radeon_device *rdev, |
e409b128 CK |
41 | struct radeon_ring *ring, |
42 | struct radeon_semaphore *semaphore, | |
43 | bool emit_wait) | |
44 | { | |
45 | uint64_t addr = semaphore->gpu_addr; | |
46 | ||
47 | radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_LOW, 0)); | |
48 | radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF); | |
49 | ||
50 | radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0)); | |
51 | radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF); | |
52 | ||
53 | radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0)); | |
54 | radeon_ring_write(ring, 0x80 | (emit_wait ? 1 : 0)); | |
1654b817 CK |
55 | |
56 | return true; | |
e409b128 | 57 | } |