Commit 129657c8 authored Mar 04, 2020 by Felix Kuehling Committed by Alex Deucher Mar 06, 2020

drm/amdkfd: Signal eviction fence on process destruction (v2)



Otherwise BOs may wait for the fence indefinitely and never be destroyed.

v2: Signal the fence right after destroying queues to avoid unnecessary
    delaye-delete in kfd_process_wq_release

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: xinhui pan <xinhui.pan@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent cc9f2fba

drivers/gpu/drm/amd/amdkfd/kfd_process.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -641,6 +641,11 @@ static void kfd_process_notifier_release(struct mmu_notifier *mn,

		/* Indicate to other users that MM is no longer valid */
		p->mm = NULL;
		/* Signal the eviction fence after user mode queues are
		* destroyed. This allows any BOs to be freed without
		* triggering pointless evictions or waiting for fences.
		*/
		dma_fence_signal(p->ef);

		mutex_unlock(&p->mutex);

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