On Thu, 05 Jan 2012 19:10:43 -0800 Eric Anholt <eric@xxxxxxxxxx> wrote: > On Thu, 5 Jan 2012 14:16:23 -0200, przanoni@xxxxxxxxx wrote: > > From: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> > > > > 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. > > So am I following this right, that these register bits are used to > communicate from one piece of software to another piece of software, > across the virtualization boundary? Right, but not for virtualization; these bits are read by the AMT engine for its built-in KVM functionality. -- Jesse Barnes, Intel Open Source Technology Center _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
