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drm/amdgpu: Follow up change to previous drm scheduler change.

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Align refcount behaviour for amdgpu_job embedded HW fence with
classic pointer style HW fences by increasing refcount each
time emit is called so amdgpu code doesn't need to make workarounds
using amdgpu_job.job_run_counter to keep the HW fence refcount balanced.

Also since in the previous patch we resumed setting s_fence->parent to NULL
in drm_sched_stop switch to directly checking if job->hw_fence is
signaled to short circuit reset if already signed.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Tested-by: Yiqing Yao <yiqing.yao@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Andrey Grodzovsky
2022-06-20 17:33:55 -04:00
committed by Alex Deucher
parent 45ecaea738
commit 9ae55f030d
4 changed files with 29 additions and 11 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
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@@ -684,6 +684,8 @@ int amdgpu_amdkfd_submit_ib(struct amdgpu_device *adev,
goto err_ib_sched;
}
/* Drop the initial kref_init count (see drm_sched_main as example) */
dma_fence_put(f);
ret = dma_fence_wait(f, false);
err_ib_sched: