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drm/amdgpu: stop all rings before doing gpu recover 

found recover_vram_from_shadow sometimes get executed
in paralle with SDMA scheduler, should stop all
schedulers before doing gpu reset/recover

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
hifive-unleashed-5.1
Monk Liu 2017-12-25 15:14:58 +08:00 committed by Alex Deucher
parent d869ae092e
commit 711826656b
1 changed files with 15 additions and 25 deletions
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40
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@ -2648,22 +2648,23 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
/* block TTM */
resched = ttm_bo_lock_delayed_workqueue(&adev->mman.bdev);
/* store modesetting */
if (amdgpu_device_has_dc_support(adev))
state = drm_atomic_helper_suspend(adev->ddev);
/* block scheduler */
/* block all schedulers and reset given job's ring */
for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
struct amdgpu_ring *ring = adev->rings[i];
if (!ring || !ring->sched.thread)
continue;
/* only focus on the ring hit timeout if &job not NULL */
kthread_park(ring->sched.thread);
if (job && job->ring->idx != i)
continue;
kthread_park(ring->sched.thread);
drm_sched_hw_job_reset(&ring->sched, &job->base);
/* after all hw jobs are reset, hw fence is meaningless, so force_completion */
@ -2706,33 +2707,22 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
}
dma_fence_put(fence);
}
}
for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
struct amdgpu_ring *ring = adev->rings[i];
for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
struct amdgpu_ring *ring = adev->rings[i];
if (!ring || !ring->sched.thread)
continue;
/* only focus on the ring hit timeout if &job not NULL */
if (job && job->ring->idx != i)
continue;
if (!ring || !ring->sched.thread)
continue;
/* only need recovery sched of the given job's ring
* or all rings (in the case @job is NULL)
* after above amdgpu_reset accomplished
*/
if ((!job || job->ring->idx == i) && !r)
drm_sched_job_recovery(&ring->sched);
kthread_unpark(ring->sched.thread);
}
} else {
for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
struct amdgpu_ring *ring = adev->rings[i];
if (!ring || !ring->sched.thread)
continue;
/* only focus on the ring hit timeout if &job not NULL */
if (job && job->ring->idx != i)
continue;
kthread_unpark(adev->rings[i]->sched.thread);
}
kthread_unpark(ring->sched.thread);
}
if (amdgpu_device_has_dc_support(adev)) {