diff options
| author | Andrey Grodzovsky <andrey.grodzovsky@amd.com> | 2022-07-13 19:57:50 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-07-18 23:37:25 +0300 |
| commit | f6a3f66063ca39e7ee5fcee59e889c5ec4de9dc0 (patch) | |
| tree | 44ed08ac19a98d2e15a02520e5ff3665a8a99273 /drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | |
| parent | 0b15205c7325dc20b7da0068307670d222d66949 (diff) | |
| download | linux-f6a3f66063ca39e7ee5fcee59e889c5ec4de9dc0.tar.xz | |
drm/amdgpu: Get rid of amdgpu_job->external_hw_fence
This is a follow-up cleanup to [1]. See bellow refcount balancing
for calling amdgpu_job_submit_direct after this cleanup as far
as I calculated.
amdgpu_fence_emit
dma_fence_init 1
dma_fence_get(fence) 2
rcu_assign_pointer(*ptr, dma_fence_get(fence) 3
---> amdgpu_job_submit_direct completes before fence signaled
amdgpu_sa_bo_free
(*sa_bo)->fence = dma_fence_get(fence) 4
amdgpu_job_free
dma_fence_put 3
amdgpu_vcn_enc_get_destroy_msg
*fence = dma_fence_get(f) 4
dma_fence_put(f); 3
amdgpu_vcn_enc_ring_test_ib
dma_fence_put(fence) 2
amdgpu_fence_process
dma_fence_put 1
amdgpu_sa_bo_remove_locked
dma_fence_put 0
---> amdgpu_job_submit_direct completes after fence signaled
amdgpu_fence_process
dma_fence_put 2
amdgpu_job_free
dma_fence_put 1
amdgpu_vcn_enc_get_destroy_msg
*fence = dma_fence_get(f) 2
dma_fence_put(f); 1
amdgpu_vcn_enc_ring_test_ib
dma_fence_put(fence) 0
[1] - https://patchwork.kernel.org/project/dri-devel/cover/20220624180955.485440-1-andrey.grodzovsky@amd.com/
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_job.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 27 |
1 files changed, 5 insertions, 22 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c index 36c1be77bf8f..5071b96be982 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c @@ -133,16 +133,10 @@ void amdgpu_job_free_resources(struct amdgpu_job *job) { struct amdgpu_ring *ring = to_amdgpu_ring(job->base.sched); struct dma_fence *f; - struct dma_fence *hw_fence; unsigned i; - if (job->hw_fence.ops == NULL) - hw_fence = job->external_hw_fence; - else - hw_fence = &job->hw_fence; - /* use sched fence if available */ - f = job->base.s_fence ? &job->base.s_fence->finished : hw_fence; + f = job->base.s_fence ? &job->base.s_fence->finished : &job->hw_fence; for (i = 0; i < job->num_ibs; ++i) amdgpu_ib_free(ring->adev, &job->ibs[i], f); } @@ -156,11 +150,7 @@ static void amdgpu_job_free_cb(struct drm_sched_job *s_job) amdgpu_sync_free(&job->sync); amdgpu_sync_free(&job->sched_sync); - /* only put the hw fence if has embedded fence */ - if (job->hw_fence.ops != NULL) - dma_fence_put(&job->hw_fence); - else - kfree(job); + dma_fence_put(&job->hw_fence); } void amdgpu_job_free(struct amdgpu_job *job) @@ -169,11 +159,7 @@ void amdgpu_job_free(struct amdgpu_job *job) amdgpu_sync_free(&job->sync); amdgpu_sync_free(&job->sched_sync); - /* only put the hw fence if has embedded fence */ - if (job->hw_fence.ops != NULL) - dma_fence_put(&job->hw_fence); - else - kfree(job); + dma_fence_put(&job->hw_fence); } int amdgpu_job_submit(struct amdgpu_job *job, struct drm_sched_entity *entity, @@ -203,15 +189,12 @@ int amdgpu_job_submit_direct(struct amdgpu_job *job, struct amdgpu_ring *ring, int r; job->base.sched = &ring->sched; - r = amdgpu_ib_schedule(ring, job->num_ibs, job->ibs, NULL, fence); - /* record external_hw_fence for direct submit */ - job->external_hw_fence = dma_fence_get(*fence); + r = amdgpu_ib_schedule(ring, job->num_ibs, job->ibs, job, fence); + if (r) return r; amdgpu_job_free(job); - dma_fence_put(*fence); - return 0; } |