drm/i915: Change IVB WIZ hashing mode to 16x4
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Tue, 4 Feb 2014 19:59:19 +0000 (21:59 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 4 Mar 2014 14:39:05 +0000 (15:39 +0100)
commita607c1a41d7dae073d6b79460b26e818c772984e
tree817bb60d977096ebb5e216b77e87442819bd6a9c
parent743b57d830b8834026508050bd138c1247fccd4a
drm/i915: Change IVB WIZ hashing mode to 16x4

BSpec recommends using 8x4 hashing mode when MSAA is used. But in
practice 16x4 seems to have a slight edge in performance (on IVB and
HSW at least). So just use 16x4.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Antti Koskipää <antti.koskipaa@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_pm.c