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1/*2 * Copyright 2013 Advanced Micro Devices, Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * 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 command31 *32 * @rdev: radeon_device pointer33 * @ring: radeon_ring pointer34 * @semaphore: semaphore to emit commands for35 * @emit_wait: true if we should emit a wait command36 *37 * Emit a semaphore command (either wait or signal) to the UVD ring.38 */39bool 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, (addr >> 3) & 0x000FFFFF);48 49 radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0));50 radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF);51 52 radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0));53 radeon_ring_write(ring, 0x80 | (emit_wait ? 1 : 0));54 55 return true;56}57