From 113e58add269ef19e9994544a85bc4b34e809410 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Tue, 29 Aug 2017 16:07:31 +0200 Subject: [PATCH 0867/4131] drm/amdgpu: restrict userptr even more MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Don't allow them to be GEM imported into another process. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Acked-by: Chunming Zhou --- 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 00bc506..768de03 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -155,7 +155,13 @@ 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