[PATCH v5 2/3] drm/virtio: fix mmap page attributes

[Gerd Hoffmann]

virtio-gpu uses cached mappings, set
drm_gem_shmem_object.map_cached accordingly.

Cc: stable@xxxxxxxxxxxxxxx
Fixes: c66df701e783 ("drm/virtio: switch from ttm to gem shmem helpers")
Reported-by: Gurchetan Singh <gurchetansingh@xxxxxxxxxxxx>
Reported-by: Guillaume Gardet <Guillaume.Gardet@xxxxxxx>
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 3d2a6d489bfc..59319435218f 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -119,6 +119,7 @@ struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev,
 		return NULL;
 
 	bo->base.base.funcs = &virtio_gpu_gem_funcs;
+	bo->base.map_cached = true;
 	return &bo->base.base;
 }
 
-- 
2.18.2