From: Emily Deng Emily.Deng@amd.com
[ Upstream commit bb0cd09be45ea457f25fdcbcb3d6cf2230f26c46 ]
When unloading driver after killing some applications, it will hit sdma flush tlb job timeout which is called by ttm_bo_delay_delete. So to avoid the job submit after fence driver fini, call ttm_bo_lock_delayed_workqueue before fence driver fini. And also put drm_sched_fini before waiting fence.
Signed-off-by: Emily Deng Emily.Deng@amd.com Reviewed-by: Christian König christian.koenig@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 5 +++-- 2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 8a5a8ff5d362..5eee251e3335 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3613,6 +3613,7 @@ void amdgpu_device_fini(struct amdgpu_device *adev) { dev_info(adev->dev, "amdgpu: finishing device.\n"); flush_delayed_work(&adev->delayed_init_work); + ttm_bo_lock_delayed_workqueue(&adev->mman.bdev); adev->shutdown = true;
kfree(adev->pci_state); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c index d56f4023ebb3..7e8e46c39dbd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c @@ -533,6 +533,8 @@ void amdgpu_fence_driver_fini(struct amdgpu_device *adev)
if (!ring || !ring->fence_drv.initialized) continue; + if (!ring->no_scheduler) + drm_sched_fini(&ring->sched); r = amdgpu_fence_wait_empty(ring); if (r) { /* no need to trigger GPU reset as we are unloading */ @@ -541,8 +543,7 @@ void amdgpu_fence_driver_fini(struct amdgpu_device *adev) if (ring->fence_drv.irq_src) amdgpu_irq_put(adev, ring->fence_drv.irq_src, ring->fence_drv.irq_type); - if (!ring->no_scheduler) - drm_sched_fini(&ring->sched); + del_timer_sync(&ring->fence_drv.fallback_timer); for (j = 0; j <= ring->fence_drv.num_fences_mask; ++j) dma_fence_put(ring->fence_drv.fences[j]);