[PATCH v3 3/4] drm/virtio: fix mmap page attributes

[Gerd Hoffmann]

virtio-gpu uses cached mappings, set virtio_gpu_gem_funcs.pgprot
accordingly.

Reported-by: Gurchetan Singh <gurchetansingh at chromium.org>
Signed-off-by: Gerd Hoffmann <kraxel at redhat.com>
---
 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..0b754c5bbcce 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -87,6 +87,7 @@ static const struct drm_gem_object_funcs virtio_gpu_gem_funcs = {
 	.vmap = drm_gem_shmem_vmap,
 	.vunmap = drm_gem_shmem_vunmap,
 	.mmap = &drm_gem_shmem_mmap,
+	.pgprot = &drm_gem_pgprot_cached,
 };
 
 struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev,
-- 
2.18.1