[PATCH v4 2/3] drm/virtio: fix mmap page attributes

From: Gerd Hoffmann
Date: Wed Dec 18 2019 - 07:56:58 EST


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

Reported-by: Gurchetan Singh <gurchetansingh@xxxxxxxxxxxx>
Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>

virtio fixup
---
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..7f991e03ea2c 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -99,6 +99,7 @@ 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;
}

--
2.18.1