diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0867-drm-amdgpu-restrict-userptr-even-more.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0867-drm-amdgpu-restrict-userptr-even-more.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0867-drm-amdgpu-restrict-userptr-even-more.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0867-drm-amdgpu-restrict-userptr-even-more.patch new file mode 100644 index 00000000..d7b4a90e --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0867-drm-amdgpu-restrict-userptr-even-more.patch @@ -0,0 +1,38 @@ +From 113e58add269ef19e9994544a85bc4b34e809410 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com> +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 <christian.koenig@amd.com> +Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> +Acked-by: Chunming Zhou <david1.zhou@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 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 + |