Am 20.10.2017 um 05:33 schrieb Monk Liu:
> merge the setting guilty on context into this function
> to avoid implement extra routine.
>
> Change-Id: I7a0063464fdc85d5ac9080046380e745565ff540
> Signed-off-by: Monk Liu <Monk.Liu at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 ++--
> drivers/gpu/drm/amd/scheduler/gpu_scheduler.c | 13 ++++++++++++-
> drivers/gpu/drm/amd/scheduler/gpu_scheduler.h | 2 +-
> 3 files changed, 15 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index dae1e5b..a07544d 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -2868,7 +2868,7 @@ int amdgpu_sriov_gpu_reset(struct amdgpu_device *adev, struct amdgpu_job *job)
> amd_sched_job_kickout(&job->base);
>
> /* only do job_reset on the hang ring if @job not NULL */
> - amd_sched_hw_job_reset(&ring->sched);
> + amd_sched_hw_job_reset(&ring->sched, NULL);
>
> /* after all hw jobs are reset, hw fence is meaningless, so force_completion */
> amdgpu_fence_driver_force_completion(ring);
> @@ -2989,7 +2989,7 @@ int amdgpu_gpu_reset(struct amdgpu_device *adev)
> if (!ring || !ring->sched.thread)
> continue;
> kthread_park(ring->sched.thread);
> - amd_sched_hw_job_reset(&ring->sched);
> + amd_sched_hw_job_reset(&ring->sched, NULL);
> /* after all hw jobs are reset, hw fence is meaningless, so force_completion */
> amdgpu_fence_driver_force_completion(ring);
> }
> diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
> index e4d3b4e..322b6c1 100644
> --- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
> +++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
> @@ -442,7 +442,14 @@ static void amd_sched_job_timedout(struct work_struct *work)
> job->sched->ops->timedout_job(job);
> }
>
> -void amd_sched_hw_job_reset(struct amd_gpu_scheduler *sched)
> +static void amd_sched_set_guilty(struct amd_sched_job *s_job)
> +{
> + if (atomic_inc_return(&s_job->karma) > s_job->sched->hang_limit)
> + if (s_job->s_entity->guilty)
> + atomic_set(s_job->s_entity->guilty, 1);
The entity might be long freed at this point.
You need to walk the list of entities (with lock held) and check if
entity->fence_context == job->s_fence->scheduled.context and only if you
found the right one set the guilty flag there.
Christian.
> +}
> +
> +void amd_sched_hw_job_reset(struct amd_gpu_scheduler *sched, struct amd_sched_job *bad)
> {
> struct amd_sched_job *s_job;
>
> @@ -455,6 +462,10 @@ void amd_sched_hw_job_reset(struct amd_gpu_scheduler *sched)
> s_job->s_fence->parent = NULL;
> atomic_dec(&sched->hw_rq_count);
> }
> +
> + if (bad && bad == s_job) {
> + amd_sched_set_guilty(s_job);
> + }
> }
> spin_unlock(&sched->job_list_lock);
> }
> diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
> index 2d59fc5..fff7cc7 100644
> --- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
> +++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
> @@ -172,7 +172,7 @@ int amd_sched_job_init(struct amd_sched_job *job,
> struct amd_gpu_scheduler *sched,
> struct amd_sched_entity *entity,
> void *owner);
> -void amd_sched_hw_job_reset(struct amd_gpu_scheduler *sched);
> +void amd_sched_hw_job_reset(struct amd_gpu_scheduler *sched, struct amd_sched_job *job);
> void amd_sched_job_recovery(struct amd_gpu_scheduler *sched);
> bool amd_sched_dependency_optimized(struct dma_fence* fence,
> struct amd_sched_entity *entity);
