From mboxrd@z Thu Jan 1 00:00:00 1970 From: deepak.s@linux.intel.com Subject: [PATCH 1/7] drm/i915: Read guaranteed freq for valleyview Date: Thu, 10 Jul 2014 13:16:21 +0530 Message-ID: <1404978387-28180-2-git-send-email-deepak.s@linux.intel.com> References: <1404978387-28180-1-git-send-email-deepak.s@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id 62F976E65B for ; Wed, 9 Jul 2014 00:51:48 -0700 (PDT) In-Reply-To: <1404978387-28180-1-git-send-email-deepak.s@linux.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org From: Deepak S Reading RP1 for valleyview to help us enable "pm_rps" i-g-t testcase execution. Signed-off-by: Deepak S --- drivers/gpu/drm/i915/intel_pm.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index d1af641..b8e7afc 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3816,6 +3816,17 @@ int cherryview_rps_min_freq(struct drm_i915_private *dev_priv) return rpn; } +int valleyview_rps_guar_freq(struct drm_i915_private *dev_priv) +{ + u32 val, rp1; + + val = vlv_nc_read(dev_priv, IOSF_NC_FB_GFX_FREQ_FUSE); + + rp1 = (val & FB_GFX_FGUARANTEED_FREQ_FUSE_MASK) >> FB_GFX_FGUARANTEED_FREQ_FUSE_SHIFT; + + return rp1; +} + int valleyview_rps_max_freq(struct drm_i915_private *dev_priv) { u32 val, rp0; @@ -3958,6 +3969,11 @@ static void valleyview_init_gt_powersave(struct drm_device *dev) vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq), dev_priv->rps.efficient_freq); + dev_priv->rps.rp1_freq = valleyview_rps_guar_freq(dev_priv); + DRM_DEBUG_DRIVER("RP1(Guar Freq) GPU freq: %d MHz (%u)\n", + vlv_gpu_freq(dev_priv, dev_priv->rps.rp1_freq), + dev_priv->rps.rp1_freq); + dev_priv->rps.min_freq = valleyview_rps_min_freq(dev_priv); DRM_DEBUG_DRIVER("min GPU freq: %d MHz (%u)\n", vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq), -- 1.9.1