On Mon, May 19, 2014 at 4:19 PM, Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> wrote: > On Mon, May 19, 2014 at 04:08:09PM +0530, Arun Murthy wrote: >> > Add a mechanism by which we can evade the leading edge of vblank. This >> > guarantees that no two sprite register writes will straddle on either >> > side of the vblank start, and that means all the writes will be latched >> > together in one atomic operation. >> >> >> Here only one sprite update followed by the primary enable/disable can be >> achieved atomically. But I feel update of all planes are to be considered, i.e >> update of planes per pipe basis to achieve atomicity. > > That's the final goal. This patch introduces the mechanism by which > we can eventually implement the full atomic update. > Instead of tweaking with the existing functions pointers or IOCTL's can adding a new function pointer in drm_crtc_funcs with element set_display. This function in turn can set plane, do a page flip and also set few parameters per pipe basis. Thereby achieving atomicity. Can this approach work better? Thanks and Regards, Arun R Murthy ------------------ _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
