From mboxrd@z Thu Jan 1 00:00:00 1970 From: deepak.s@linux.intel.com Subject: [PATCH v4] drm/i915: Force GPU Freq to lowest while suspending. Date: Fri, 20 Jun 2014 20:03:02 +0530 Message-ID: <1403274782-8437-1-git-send-email-deepak.s@linux.intel.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTP id B82506E135 for ; Thu, 19 Jun 2014 07:38:11 -0700 (PDT) In-Reply-To: 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 We might be leaving the GPU Frequency (and thus vnn) high during the suspend. Force gt to move to lowest freq while suspending. v2: Fixed typo in commit message (Deepak) v3: Force gt to lowest freq in suspend_gt_powersave (Daniel) v4: Add GPU min freq set _after_ we've cancelled the rps works (Daniel) Signed-off-by: Deepak S --- drivers/gpu/drm/i915/intel_pm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 2043c4b..0543407 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4884,6 +4884,9 @@ void intel_suspend_gt_powersave(struct drm_device *dev) flush_delayed_work(&dev_priv->rps.delayed_resume_work); cancel_work_sync(&dev_priv->rps.work); + + /* Force GPU to min freq during suspend */ + gen6_rps_idle(dev_priv); } void intel_disable_gt_powersave(struct drm_device *dev) -- 1.9.1