On Thu, 29 Sep 2011 09:43:12 -0700 Eric Anholt <eric at anholt.net> wrote:
> On Thu, 29 Sep 2011 16:26:32 +0100, Dave Airlie <airlied at gmail.com> wrote: > > From: Dave Airlie <airlied at redhat.com> > > > > For the simple KMS driver case we need some more info about argb cursor > > limits and a preferred depth and if shadowed framebuffer access is > > preferred. > > > > I've only added this for intel/radeon which support the dumb ioctls so far. > > > > I really don't want to expose a truck load of info, just enough for X to > > start without configuration with a hw cursor. > > > > If you need something really fancy you should be writing a real X.org > > driver. > > Would prefer_shadow ever be 0? Devices which are fully cache coherent with the CPU are probably a good example. No point running back buffers then. Also any device with a generally slow CPU/GPU interface rather than one where write is fast but read is not. Alan
