Commit 4f5839c5 authored by Christian König's avatar Christian König Committed by Alex Deucher
Browse files

drm/amdgpu: restrict userptr even more 



Don't allow them to be GEM imported into another process.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Acked-by: default avatarChunming Zhou <david1.zhou@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 0f2fc435

drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c

+6 −0
Original line number Diff line number Diff line
@@ -112,7 +112,13 @@ int amdgpu_gem_object_open(struct drm_gem_object *obj, 
	struct amdgpu_fpriv *fpriv = file_priv->driver_priv;

	struct amdgpu_vm *vm = &fpriv->vm;

	struct amdgpu_bo_va *bo_va;

	struct mm_struct *mm;

	int r;



	mm = amdgpu_ttm_tt_get_usermm(abo->tbo.ttm);

	if (mm && mm != current->mm)

		return -EPERM;



	r = amdgpu_bo_reserve(abo, false);

	if (r)

		return r;

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