Re: [Intel-gfx] [PATCH 13/15] drm/i915: Eliminate rmw from .update_primary_plane()

2014-06-05 Thread Matt Roper
On Thu, Jun 05, 2014 at 07:16:02PM +0300, ville.syrj...@linux.intel.com wrote: > From: Ville Syrjälä > > Move the entire DSPCNTR register setup into the .update_primary_plane() > functions. That's where it belongs anyway and it'll also help 830M which > has the extra problem that plane registers

[Intel-gfx] [PATCH 13/15] drm/i915: Eliminate rmw from .update_primary_plane()

2014-06-05 Thread ville . syrjala
From: Ville Syrjälä Move the entire DSPCNTR register setup into the .update_primary_plane() functions. That's where it belongs anyway and it'll also help 830M which has the extra problem that plane registers reads will return the value latched at the last vblank, not the value that was last writt