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drm/amdgpu: use a dummy owner for sysfs triggered cleaner shaders v4

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Otherwise triggering sysfs multiple times without other submissions in
between only runs the shader once.

v2: add some comment
v3: re-add missing cast
v4: squash in semicolon fix

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 8b2ae7d492)
This commit is contained in:
Christian König 2025-03-28 18:58:17 +01:00 committed by Alex Deucher
parent 8ffd015db8
commit 447fab3095
1 changed files with 11 additions and 3 deletions
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14
drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
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@ -1438,9 +1438,11 @@ static int amdgpu_gfx_run_cleaner_shader_job(struct amdgpu_ring *ring)
struct amdgpu_device *adev = ring->adev;
struct drm_gpu_scheduler *sched = &ring->sched;
struct drm_sched_entity entity;
static atomic_t counter;
struct dma_fence *f;
struct amdgpu_job *job;
struct amdgpu_ib *ib;
void *owner;
int i, r;
/* Initialize the scheduler entity */
@ -1451,9 +1453,15 @@ static int amdgpu_gfx_run_cleaner_shader_job(struct amdgpu_ring *ring)
goto err;
}
r = amdgpu_job_alloc_with_ib(ring->adev, &entity, NULL,
64, 0,
&job);
/*
* Use some unique dummy value as the owner to make sure we execute
* the cleaner shader on each submission. The value just need to change
* for each submission and is otherwise meaningless.
*/
owner = (void *)(unsigned long)atomic_inc_return(&counter);
r = amdgpu_job_alloc_with_ib(ring->adev, &entity, owner,
64, 0, &job);
if (r)
goto err;