> -----Original Message-----
> From: Gerd Hoffmann <kraxel@xxxxxxxxxx>
> Sent: 26 February 2020 16:48
> To: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Cc: tzimmermann@xxxxxxx; gurchetansingh@xxxxxxxxxxxx; olvaffe@xxxxxxxxx;
> Guillaume Gardet <Guillaume.Gardet@xxxxxxx>; Gerd Hoffmann
> <kraxel@xxxxxxxxxx>; stable@xxxxxxxxxxxxxxx; David Airlie <airlied@xxxxxxxx>;
> Daniel Vetter <daniel.vetter@xxxxxxxx>; open list:VIRTIO GPU DRIVER
> <virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx>; open list <linux-
> kernel@xxxxxxxxxxxxxxx>
> Subject: [PATCH v5 2/3] drm/virtio: fix mmap page attributes
>
> 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>
Tested-by: Guillaume Gardet <Guillaume.Gardet@xxxxxxx>
> ---
> 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
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