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authorFelix Kuehling <Felix.Kuehling@amd.com>2020-03-04 15:57:23 -0500
committerAlex Deucher <alexander.deucher@amd.com>2020-03-06 14:40:30 -0500
commit129657c86f859e37cdfe48e97b00af89584aa62a (patch)
tree2e73e3060a207991b2946c9e7ca1c402525890a6 /drivers/gpu/drm/amd/amdkfd
parentcc9f2fba37e5f64b84fe0bf49f7988124cf38d76 (diff)
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 K├Ânig <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd')
-rw-r--r--drivers/gpu/drm/amd/amdkfd/kfd_process.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index 22abdbc6dfd7..c92285fbba8a 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -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/* Indicate to other users that MM is no longer valid */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);