From 5fd9f52384935dacfdc4adb5cc3531a40346d475 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 4 Mar 2016 21:43:03 +0200 Subject: [PATCH] drm/i915: Set GPU freq to idle_freq initially MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Currently we set the initial GPU frequency to min_freq_softlimit on gen9, and to efficient_freq on VLV/CHV. On all the other platforms we set it to idle_freq. Let's use idle_freq across the board to make sure we don't waste power. This is especially relevant for VLV since Vnn won't drop to minimum unless the GPU is at the minimum frequency. Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/1457120584-26080-3-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Imre Deak --- drivers/gpu/drm/i915/intel_pm.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 6420776e5e98..7fccf3b04e8e 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4808,7 +4808,7 @@ static void gen9_enable_rps(struct drm_device *dev) * Up/Down EI & threshold registers, as well as the RP_CONTROL, * RP_INTERRUPT_LIMITS & RPNSWREQ registers */ dev_priv->rps.power = HIGH_POWER; /* force a reset */ - gen6_set_rps(dev_priv->dev, dev_priv->rps.min_freq_softlimit); + gen6_set_rps(dev_priv->dev, dev_priv->rps.idle_freq); intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); } @@ -5595,10 +5595,10 @@ static void cherryview_enable_rps(struct drm_device *dev) dev_priv->rps.cur_freq); DRM_DEBUG_DRIVER("setting GPU freq to %d MHz (%u)\n", - intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq), - dev_priv->rps.efficient_freq); + intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq), + dev_priv->rps.idle_freq); - valleyview_set_rps(dev_priv->dev, dev_priv->rps.efficient_freq); + valleyview_set_rps(dev_priv->dev, dev_priv->rps.idle_freq); intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); } @@ -5684,10 +5684,10 @@ static void valleyview_enable_rps(struct drm_device *dev) dev_priv->rps.cur_freq); DRM_DEBUG_DRIVER("setting GPU freq to %d MHz (%u)\n", - intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq), - dev_priv->rps.efficient_freq); + intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq), + dev_priv->rps.idle_freq); - valleyview_set_rps(dev_priv->dev, dev_priv->rps.efficient_freq); + valleyview_set_rps(dev_priv->dev, dev_priv->rps.idle_freq); intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); } -- 2.30.2