On Thu, Jan 05, 2012 at 02:16:23PM -0200, przanoni at gmail.com wrote: > From: Paulo Zanoni <paulo.r.zanoni at intel.com> > > This ioctl is used to signal the drivers that the screen is rotated, > not to make the drivers rotate the screen. > - add a driver-specific "rotation_set" function > - implement Intel's rotation_set by setting the right values to the > PIPECONF registers. > > The idea is that when user-space does rotation, it can call this ioctl > to inform the Kernel that we have a rotation. This feature is needed > by the KVMr feature of VPro. > > Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com> Quick comments before I dig into this: - Please post at least a link to the userspace patches, so that it's possible to check how this all fits together - Please separate the generic infrastructre in drm from the changes to support this in i915. I know, this is a rather small feature, but still. Cheers, Daniel -- Daniel Vetter Mail: daniel at ffwll.ch Mobile: +41 (0)79 365 57 48