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drm/amdgpu: block ttm first before parking scheduler

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Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2016-06-30 16:44:41 +08:00 committed by Alex Deucher
parent e686e75dac
commit a3c47d6bdc
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@ -1936,6 +1936,9 @@ int amdgpu_gpu_reset(struct amdgpu_device *adev)
atomic_inc(&adev->gpu_reset_counter);
/* block TTM */
resched = ttm_bo_lock_delayed_workqueue(&adev->mman.bdev);
/* block scheduler */
for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
struct amdgpu_ring *ring = adev->rings[i];
@ -1945,8 +1948,6 @@ int amdgpu_gpu_reset(struct amdgpu_device *adev)
kthread_park(ring->sched.thread);
}
/* block TTM */
resched = ttm_bo_lock_delayed_workqueue(&adev->mman.bdev);
/* save scratch */
amdgpu_atombios_scratch_regs_save(adev);