On Thu, 29 Sep 2011 09:43:12 -0700 Eric Anholt eric@anholt.net wrote:
On Thu, 29 Sep 2011 16:26:32 +0100, Dave Airlie airlied@gmail.com wrote:
From: Dave Airlie airlied@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