[PATCH v2 2/2] drm/virtio: fix mmap page attributes

From: Gerd Hoffmann
Date: Wed Dec 11 2019 - 03:18:25 EST


virtio-gpu uses cached mappings, set shmem->caching accordingly.

Reported-by: Gurchetan Singh <gurchetansingh@xxxxxxxxxxxx>
Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
---
drivers/gpu/drm/virtio/virtgpu_object.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index 017a9e0fc3bb..a0b5e5195816 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -118,6 +118,7 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
shmem_obj = drm_gem_shmem_create(vgdev->ddev, params->size);
if (IS_ERR(shmem_obj))
return PTR_ERR(shmem_obj);
+ shmem_obj->caching = DRM_GEM_SHMEM_CACHED;
bo = gem_to_virtio_gpu_obj(&shmem_obj->base);

ret = virtio_gpu_resource_id_get(vgdev, &bo->hw_res_handle);
--
2.18.1