From mboxrd@z Thu Jan 1 00:00:00 1970 From: Deepak S Subject: Re: [PATCH v4] drm/i915: Force GPU Freq to lowest while suspending. Date: Wed, 16 Jul 2014 08:51:47 +0530 Message-ID: <53C5EFCB.3030306@linux.intel.com> References: <1403274782-8437-1-git-send-email-deepak.s@linux.intel.com> <53C4D9D4.2050808@linux.intel.com> <20140714081730.157d59a4@jbarnes-desktop> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" 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 9CDBB6E4D1 for ; Mon, 14 Jul 2014 20:27:01 -0700 (PDT) In-Reply-To: <20140714081730.157d59a4@jbarnes-desktop> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Jesse Barnes Cc: intel-gfx List-Id: intel-gfx@lists.freedesktop.org On Monday 14 July 2014 08:47 PM, Jesse Barnes wrote: > 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 > Thanks for reviewing