1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2013 Advanced Micro Devices, Inc.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Permission is hereby granted, free of charge, to any person obtaining a
5*4882a593Smuzhiyun * copy of this software and associated documentation files (the "Software"),
6*4882a593Smuzhiyun * to deal in the Software without restriction, including without limitation
7*4882a593Smuzhiyun * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8*4882a593Smuzhiyun * and/or sell copies of the Software, and to permit persons to whom the
9*4882a593Smuzhiyun * Software is furnished to do so, subject to the following conditions:
10*4882a593Smuzhiyun *
11*4882a593Smuzhiyun * The above copyright notice and this permission notice shall be included in
12*4882a593Smuzhiyun * all copies or substantial portions of the Software.
13*4882a593Smuzhiyun *
14*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15*4882a593Smuzhiyun * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16*4882a593Smuzhiyun * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17*4882a593Smuzhiyun * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18*4882a593Smuzhiyun * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19*4882a593Smuzhiyun * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20*4882a593Smuzhiyun * OTHER DEALINGS IN THE SOFTWARE.
21*4882a593Smuzhiyun *
22*4882a593Smuzhiyun * Authors: Christian König <christian.koenig@amd.com>
23*4882a593Smuzhiyun */
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun #include "radeon.h"
26*4882a593Smuzhiyun #include "radeon_asic.h"
27*4882a593Smuzhiyun #include "nid.h"
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun /**
30*4882a593Smuzhiyun * uvd_v3_1_semaphore_emit - emit semaphore command
31*4882a593Smuzhiyun *
32*4882a593Smuzhiyun * @rdev: radeon_device pointer
33*4882a593Smuzhiyun * @ring: radeon_ring pointer
34*4882a593Smuzhiyun * @semaphore: semaphore to emit commands for
35*4882a593Smuzhiyun * @emit_wait: true if we should emit a wait command
36*4882a593Smuzhiyun *
37*4882a593Smuzhiyun * Emit a semaphore command (either wait or signal) to the UVD ring.
38*4882a593Smuzhiyun */
uvd_v3_1_semaphore_emit(struct radeon_device * rdev,struct radeon_ring * ring,struct radeon_semaphore * semaphore,bool emit_wait)39*4882a593Smuzhiyun bool uvd_v3_1_semaphore_emit(struct radeon_device *rdev,
40*4882a593Smuzhiyun struct radeon_ring *ring,
41*4882a593Smuzhiyun struct radeon_semaphore *semaphore,
42*4882a593Smuzhiyun bool emit_wait)
43*4882a593Smuzhiyun {
44*4882a593Smuzhiyun uint64_t addr = semaphore->gpu_addr;
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_LOW, 0));
47*4882a593Smuzhiyun radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF);
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0));
50*4882a593Smuzhiyun radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF);
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0));
53*4882a593Smuzhiyun radeon_ring_write(ring, 0x80 | (emit_wait ? 1 : 0));
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun return true;
56*4882a593Smuzhiyun }
57