[PATCH] drm: virtio: fix virtio_gpu_cursor_formats

Daniel Vetter daniel at ffwll.ch
Thu Apr 6 08:25:08 UTC 2017


On Wed, Apr 05, 2017 at 08:11:25PM +0300, Ville Syrjälä wrote:
> On Wed, Apr 05, 2017 at 10:09:15AM +0200, Laurent Vivier wrote:
> > When we use virtio-vga with a big-endian guest,
> > the mouse pointer disappears.
> > 
> > To fix that, on big-endian use DRM_FORMAT_BGRA8888
> > instead of DRM_FORMAT_ARGB8888.
> > 
> > Signed-off-by: Laurent Vivier <lvivier at redhat.com>
> > ---
> >  drivers/gpu/drm/virtio/virtgpu_plane.c | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
> > index 11288ff..3ed7174 100644
> > --- a/drivers/gpu/drm/virtio/virtgpu_plane.c
> > +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
> > @@ -39,7 +39,11 @@ static const uint32_t virtio_gpu_formats[] = {
> >  };
> >  
> >  static const uint32_t virtio_gpu_cursor_formats[] = {
> > +#ifdef __BIG_ENDIAN
> > +	DRM_FORMAT_BGRA8888,
> > +#else
> >  	DRM_FORMAT_ARGB8888,
> > +#endif
> 
> DRM formats are supposed to be little endian, so this isn't really
> correct.

Reality says they're native endian, and I asked Gerd Hoffman to do a
documentation update and get that reviewed by amd folks (the only other
ones who care).
-Daniel

> 
> >  };
> >  
> >  static void virtio_gpu_plane_destroy(struct drm_plane *plane)
> > -- 
> > 2.9.3
> > 
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
> 
> -- 
> Ville Syrjälä
> Intel OTC
> _______________________________________________
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch


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