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drm/amdgpu: fix userptr lockup

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Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
This commit is contained in:
Christian König
2015-05-04 13:20:36 +02:00
committed by Alex Deucher
parent dd08fae1e9
commit a961ea7349
1 changed files with 3 additions and 0 deletions
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drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
+3
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@@ -142,6 +142,9 @@ static void amdgpu_mn_invalidate_range_start(struct mmu_notifier *mn,
list_for_each_entry(bo, &node->bos, mn_list) { list_for_each_entry(bo, &node->bos, mn_list) {
if (!bo->tbo.ttm || bo->tbo.ttm->state != tt_bound)
continue;
r = amdgpu_bo_reserve(bo, true); r = amdgpu_bo_reserve(bo, true);
if (r) { if (r) {
DRM_ERROR("(%ld) failed to reserve user bo\n", r); DRM_ERROR("(%ld) failed to reserve user bo\n", r);