Re: [PATCH] drm/amdgpu: fix amdgpu_job_free_resources

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The patch solves the UVD issue.

By the way, I had to change one of the "->"'s to a "." to compile:

drivers/gpu/drm/amd/amdgpu/amdgpu_job.c: In function ‘amdgpu_job_free_resources’:
drivers/gpu/drm/amd/amdgpu/amdgpu_job.c:159:61: error: invalid type argument of ‘->’ (have ‘struct dma_fence’)
  159 |         if (job->base.s_fence && job->base.s_fence->finished->ops)
      |                                                             ^~

Thanks,

Thong Thai

On 2023-01-12 09:05, Alex Deucher wrote:
On Thu, Jan 12, 2023 at 8:48 AM Christian König
<ckoenig.leichtzumerken@xxxxxxxxx> wrote:
It can be that neither fence were initialized when we run out of UVD
streams for example.

Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2324

Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>


---
 drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
index 9e549923622b..28929c6219a7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
@@ -161,8 +161,14 @@ void amdgpu_job_free_resources(struct amdgpu_job *job)
        struct dma_fence *f;
        unsigned i;

-       /* use sched fence if available */
-       f = job->base.s_fence ? &job->base.s_fence->finished :  &job->hw_fence;
+       /* Check if any fences where initialized */
+       if (job->base.s_fence && job->base.s_fence->finished->ops)
+               f = &job->base.s_fence->finished;
+       else if (job->hw_fence.ops)
+               f = &job->hw_fence;
+       else
+               f = NULL;
+
        for (i = 0; i < job->num_ibs; ++i)
                amdgpu_ib_free(ring->adev, &job->ibs[i], f);
 }
--
2.25.1


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