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drm/amdgpu: use CPU to flush vmhub if sched stopped 

otherwse the flush_gpu_tlb will hang if we unload the
KMD becuase the schedulers already stopped

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Monk Liu 2019-11-26 19:40:08 +08:00 committed by Alex Deucher
parent c38402fe6c
commit e2195f7d0e
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
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@ -326,7 +326,8 @@ static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
if (!adev->mman.buffer_funcs_enabled ||
!adev->ib_pool_ready ||
adev->in_gpu_reset) {
adev->in_gpu_reset ||
ring->sched.ready == false) {
gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_GFXHUB_0, 0);
mutex_unlock(&adev->mman.gtt_window_lock);
return;