/* * Copyright 2013 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: Christian König <christian.koenig@amd.com> */ #include <drm/drmP.h> #include "radeon.h" #include "radeon_asic.h" #include "nid.h" /** * uvd_v3_1_semaphore_emit - emit semaphore command * * @rdev: radeon_device pointer * @ring: radeon_ring pointer * @semaphore: semaphore to emit commands for * @emit_wait: true if we should emit a wait command * * Emit a semaphore command (either wait or signal) to the UVD ring. */ bool uvd_v3_1_semaphore_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait) { uint64_t addr = semaphore->gpu_addr; radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_LOW, 0)); radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF); radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0)); radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF); radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0)); radeon_ring_write(ring, 0x80 | (emit_wait ? 1 : 0)); return true; }