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Commit 28964cf2 authored by Lionel Landwerlin's avatar Lionel Landwerlin
Browse files

drm/i915/perf: disable NOA logic when not used 



We already do it on Haswell and the documentation says it saves power.

Signed-off-by: default avatarLionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: default avatarMatthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170803165812.2373-5-lionel.g.landwerlin@intel.com
parent 3802c5cb

drivers/gpu/drm/i915/i915_perf.c

+4 −0
Original line number Diff line number Diff line
@@ -1827,6 +1827,10 @@ static void gen8_disable_metric_set(struct drm_i915_private *dev_priv) 
{

	/* Reset all contexts' slices/subslices configurations. */

	gen8_configure_all_contexts(dev_priv, NULL, false);



	I915_WRITE(GDT_CHICKEN_BITS, (I915_READ(GDT_CHICKEN_BITS) &

				      ~GT_NOA_ENABLE));



}



static void gen7_oa_enable(struct drm_i915_private *dev_priv)