[Intel-gfx] [RFC] drm: implement DRM_IOCTL_MODE_SETROTATION
daniel at ffwll.ch
Thu Jan 5 17:27:07 CET 2012
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.
Mail: daniel at ffwll.ch
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