diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0822-drm-amdgpu-disallow-foreign-BOs-in-the-display-path.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0822-drm-amdgpu-disallow-foreign-BOs-in-the-display-path.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0822-drm-amdgpu-disallow-foreign-BOs-in-the-display-path.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0822-drm-amdgpu-disallow-foreign-BOs-in-the-display-path.patch new file mode 100644 index 00000000..6757f601 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0822-drm-amdgpu-disallow-foreign-BOs-in-the-display-path.patch @@ -0,0 +1,36 @@ +From e3976d1e541b68fb73584a289acfa9e0f6d4f7d7 Mon Sep 17 00:00:00 2001 +From: Christian Koenig <christian.koenig@amd.com> +Date: Wed, 2 Dec 2015 15:48:11 +0100 +Subject: [PATCH 0822/4131] drm/amdgpu: disallow foreign BOs in the display + path +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Pinning them in other devices VRAM would obviously not work. + +Signed-off-by: Christian König <christian.koenig@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c +index 6744e0c..06a1b82 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c +@@ -181,6 +181,12 @@ int amdgpu_crtc_page_flip_target(struct drm_crtc *crtc, + obj = new_amdgpu_fb->obj; + new_abo = gem_to_amdgpu_bo(obj); + ++ if (new_rbo->adev != adev) { ++ DRM_ERROR("Foreign BOs not allowed in the display engine\n"); ++ r = -EINVAL; ++ goto cleanup; ++ } ++ + /* pin the new buffer */ + r = amdgpu_bo_reserve(new_abo, false); + if (unlikely(r != 0)) { +-- +2.7.4 + |