From mboxrd@z Thu Jan 1 00:00:00 1970 From: deepak.s@intel.com Subject: [PATCH 2/4] drm/i915: set min delay to rpe delay (Efficient frequency) for better performace. Date: Sun, 8 Dec 2013 14:16:44 +0530 Message-ID: <1386492406-24716-3-git-send-email-deepak.s@intel.com> References: <1386492406-24716-1-git-send-email-deepak.s@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 33278FAC0D for ; Sun, 8 Dec 2013 00:46:04 -0800 (PST) In-Reply-To: <1386492406-24716-1-git-send-email-deepak.s@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: intel-gfx@lists.freedesktop.org Cc: Deepak S List-Id: intel-gfx@lists.freedesktop.org From: Deepak S We use RPe here since it should match the Vmin we were shooting for. That should give us better perf than if we used the min freq available. System thermal can take the system to lowest possible freq (RP1). We are making sure, we calmp the freq to min_delay (RPe). Signed-off-by: Deepak S --- drivers/gpu/drm/i915/intel_pm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 7f6c747..716ca24 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4177,7 +4177,7 @@ static void valleyview_enable_rps(struct drm_device *dev) vlv_gpu_freq(dev_priv, dev_priv->rps.rpe_delay), dev_priv->rps.rpe_delay); - dev_priv->rps.min_delay = valleyview_rps_min_freq(dev_priv); + dev_priv->rps.min_delay = dev_priv->rps.rpe_delay; DRM_DEBUG_DRIVER("min GPU freq: %d MHz (%u)\n", vlv_gpu_freq(dev_priv, dev_priv->rps.min_delay), dev_priv->rps.min_delay); -- 1.8.4.2