On 04/18/2012 05:46 PM, Daniel Vetter wrote:
On Wed, Apr 18, 2012 at 01:31:59PM +0900, Joonyoung Shim wrote:
DRM_MODE_PLANE_EVENT is similar to DRM_MODE_PAGE_FLIP_EVENT but it is for a plane. The setplane ioctl (DRM_IOCTL_MODE_SETPLANE) needs to provide the event such as DRM_MODE_PAGE_FLIP_EVENT. The setplane ioctl can change the framebuffer of plane but user can't know completion of changing the framebuffer of plane via event. If DRM_MODE_PLANE_EVENT is added, we can also do pageflip of a plane.
Signed-off-by: Joonyoung Shimjy0922.shim@samsung.com Signed-off-by: Kyungmin Parkkyungmin.park@samsung.com
If I understand the current kms api correctly, set_plane is akin to set_base and should not generate an asynchronous flip completion event. To do that we need a new pageflip ioctl which changes a complete set of fb + planes + any crtc attributes that might be in an atomic fashion. At which point we can just reuse the existing page flip event mechanism.
It seems better way to add new pageflip ioctl for plane. I will try it.
Thanks for review.