6.14-stable review patch. If anyone has any objections, please let me know.
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From: Christian König christian.koenig@amd.com
[ Upstream commit 447fab30955cf7dba7dd563f42b67c02284860c8 ]
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 8b2ae7d492675e8af8902f103364bef59382b935) Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c index c1f35ded684e8..506786784e32d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c @@ -1411,9 +1411,11 @@ 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 */ @@ -1424,9 +1426,15 @@ 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;