[Intel-gfx] [RFC] drm: implement DRM_IOCTL_MODE_SETROTATION
eric at anholt.net
Fri Jan 6 04:10:43 CET 2012
On Thu, 5 Jan 2012 14:16:23 -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.
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?
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Size: 197 bytes
Desc: not available
More information about the Intel-gfx