Re: [Intel-gfx] [PATCH] drm/i915: Preload LUTs if the hw isn't currently using them

2019-11-05 Thread Hans de Goede
Hi, On 30-10-2019 20:08, Ville Syrjala wrote: From: Ville Syrjälä The LUTs are single buffered so in order to program them without tearing we'd have to do it during vblank (actually to be 100% effective it has to happen between start of vblank and frame start). We have no proper mechanism for

[Intel-gfx] [PATCH] drm/i915: Preload LUTs if the hw isn't currently using them

2019-10-30 Thread Ville Syrjala
From: Ville Syrjälä The LUTs are single buffered so in order to program them without tearing we'd have to do it during vblank (actually to be 100% effective it has to happen between start of vblank and frame start). We have no proper mechanism for that at the moment so we just defer loading them