| 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 "radeon.h" |
|---|
| 26 | #include "radeon_asic.h" |
|---|
| 27 | #include "nid.h" |
|---|
| 28 | |
|---|
| 29 | /** |
|---|
| 30 | * uvd_v3_1_semaphore_emit - emit semaphore command |
|---|
| 31 | * |
|---|
| 32 | * @rdev: radeon_device pointer |
|---|
| 33 | * @ring: radeon_ring pointer |
|---|
| 34 | * @semaphore: semaphore to emit commands for |
|---|
| 35 | * @emit_wait: true if we should emit a wait command |
|---|
| 36 | * |
|---|
| 37 | * Emit a semaphore command (either wait or signal) to the UVD ring. |
|---|
| 38 | */ |
|---|
| 39 | bool uvd_v3_1_semaphore_emit(struct radeon_device *rdev, |
|---|
| 40 | struct radeon_ring *ring, |
|---|
| 41 | struct radeon_semaphore *semaphore, |
|---|
| 42 | bool emit_wait) |
|---|
| 43 | { |
|---|
| 44 | uint64_t addr = semaphore->gpu_addr; |
|---|
| 45 | |
|---|
| 46 | radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_LOW, 0)); |
|---|
| 47 | radeon_ring_write(ring, v: (addr >> 3) & 0x000FFFFF); |
|---|
| 48 | |
|---|
| 49 | radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0)); |
|---|
| 50 | radeon_ring_write(ring, v: (addr >> 23) & 0x000FFFFF); |
|---|
| 51 | |
|---|
| 52 | radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0)); |
|---|
| 53 | radeon_ring_write(ring, v: 0x80 | (emit_wait ? 1 : 0)); |
|---|
| 54 | |
|---|
| 55 | return true; |
|---|
| 56 | } |
|---|
| 57 | |
|---|
