From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Barnes Subject: Re: [PATCH v4] drm/i915: Force GPU Freq to lowest while suspending. Date: Mon, 14 Jul 2014 08:17:30 -0700 Message-ID: <20140714081730.157d59a4@jbarnes-desktop> References: <1403274782-8437-1-git-send-email-deepak.s@linux.intel.com> <53C4D9D4.2050808@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pa0-f46.google.com (mail-pa0-f46.google.com [209.85.220.46]) by gabe.freedesktop.org (Postfix) with ESMTP id 577076E3FD for ; Mon, 14 Jul 2014 08:16:28 -0700 (PDT) Received: by mail-pa0-f46.google.com with SMTP id eu11so5564419pac.33 for ; Mon, 14 Jul 2014 08:16:28 -0700 (PDT) In-Reply-To: <53C4D9D4.2050808@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: Deepak S Cc: intel-gfx List-Id: intel-gfx@lists.freedesktop.org On Tue, 15 Jul 2014 13:05:48 +0530 Deepak S wrote: > > On Friday 20 June 2014 08:03 PM, deepak.s@linux.intel.com wrote: > > 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) > > Hi Jesse, > > Please review the patch Reviewed-by: Jesse Barnes -- Jesse Barnes, Intel Open Source Technology Center