45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
|
|
* Copyright 2018 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.
|
|
*
|
|
*/
|
|
#include <drm/drmP.h>
|
|
#include "amdgpu.h"
|
|
#include "amdgpu_sdma.h"
|
|
|
|
/*
|
|
* GPU SDMA IP block helpers function.
|
|
*/
|
|
|
|
struct amdgpu_sdma_instance * amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
|
|
{
|
|
struct amdgpu_device *adev = ring->adev;
|
|
int i;
|
|
|
|
for (i = 0; i < adev->sdma.num_instances; i++)
|
|
if (&adev->sdma.instance[i].ring == ring)
|
|
break;
|
|
|
|
if (i < AMDGPU_MAX_SDMA_INSTANCES)
|
|
return &adev->sdma.instance[i];
|
|
else
|
|
return NULL;
|
|
}
|