From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vandana Kannan Subject: Re: [PATCH 4/5] drm/i915: Idleness detection for DRRS Date: Wed, 18 Dec 2013 13:48:12 +0530 Message-ID: <52B15A44.9030104@intel.com> References: <1387258107-19232-1-git-send-email-vandana.kannan@intel.com> <1387258107-19232-5-git-send-email-vandana.kannan@intel.com> <20131217122928.GI22448@nuc-i3427.alporthouse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id B453311DB53 for ; Wed, 18 Dec 2013 00:18:15 -0800 (PST) In-Reply-To: <20131217122928.GI22448@nuc-i3427.alporthouse.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org To: Chris Wilson Cc: "intel-gfx@lists.freedesktop.org" List-Id: intel-gfx@lists.freedesktop.org On Dec-17-2013 5:59 PM, Chris Wilson wrote: > On Tue, Dec 17, 2013 at 10:58:26AM +0530, Vandana Kannan wrote: >> Adding support to detect display idleness by tracking page flip from >> user space. Switch to low refresh rate is triggered after 2 seconds of >> idleness. The delay is configurable. If there is a page flip or call to >> update the plane, then high refresh rate is applied. >> The feature is not used in dual-display mode. > > Looks very inconsistent next to intel_fbc_disable/intel_fbc_update. > -Chris > We have implemented this in a way that it is similar to fbc implementation. Could you explain some more about your review comment?