Re: [Intel-gfx] [PATCH 5/7] drm/i915: Make sprite updates atomic

2013-12-12 Thread Jesse Barnes
On Thu, 17 Oct 2013 22:53:17 +0300 ville.syrj...@linux.intel.com wrote: > From: Ville Syrjälä > > 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 writ

Re: [Intel-gfx] [PATCH 5/7] drm/i915: Make sprite updates atomic

2013-12-12 Thread Jesse Barnes
On Thu, 17 Oct 2013 22:53:17 +0300 ville.syrj...@linux.intel.com wrote: > From: Ville Syrjälä > > 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 writ

[Intel-gfx] [PATCH 5/7] drm/i915: Make sprite updates atomic

2013-10-17 Thread ville . syrjala
From: Ville Syrjälä 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. We do the vblank evade by che