From: Christian König <christian.koe...@amd.com>
Don't allow them to be GEM imported into another process.
Signed-off-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index d028806..e32a2b5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -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;
--
2.7.4
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