/*
* 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 K ö nig < christian . koenig @ amd . com >
*/
#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 ) & 0 x000FFFFF);
radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0 ));
radeon_ring_write(ring, (addr >> 23 ) & 0 x000FFFFF);
radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0 ));
radeon_ring_write(ring, 0 x80 | (emit_wait ? 1 : 0 ));
return true ;
}
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