From: Lionel Landwerlin Date: Thu, 3 Aug 2017 16:58:10 +0000 (+0100) Subject: drm/i915/perf: disable NOA logic when not used X-Git-Tag: MMI-PSA29.97-13-9~4697^2~20^2~71 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=28964cf25ee67e1128f7fbb7da3a792471adf47e;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git 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: Lionel Landwerlin Reviewed-by: Matthew Auld Link: https://patchwork.freedesktop.org/patch/msgid/20170803165812.2373-5-lionel.g.landwerlin@intel.com --- diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index f1993bbfd4fa..06a5e1e83e6c 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -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)