From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sylvain BERTRAND Subject: Re: SI display gap for more than 2 displays Date: Thu, 4 Sep 2014 16:56:18 +0200 Message-ID: <20140904145618.GB231@freedom> References: <20140904135123.GA231@freedom> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from smtpauth-vit.online.net (smtpauth-vit.online.net [88.190.253.76]) by gabe.freedesktop.org (Postfix) with ESMTP id 1F1F66E735 for ; Thu, 4 Sep 2014 07:56:21 -0700 (PDT) Received: from [88.188.175.165] (helo=localhost) by smtpauth-vit.online.net with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1XPYSR-00051F-1F for dri-devel@lists.freedesktop.org; Thu, 04 Sep 2014 16:56:19 +0200 Content-Disposition: inline In-Reply-To: <20140904135123.GA231@freedom> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org On Thu, Sep 04, 2014 at 03:52:20PM +0200, Sylvain BERTRAND wrote: > Hi, > > In si_program_display_gap we have DISP1_GAP and DISP2_GAP. > > Where are DISP3_GAP to DISP6_GAP? What does expect this hardware > block when more than 2 displays are connected? Is DISP2_GAP > actually stand for DISP[3-6]_GAP? > > Still in the same function, what happened to the pipes for > DCCG_DISP[2-6]_SLOW_SELECT? I noticed something else: in si_enable_display_gap, the DISP1_GAP_MCHG and DISP2_GAP_MCHG fields from CG_DISPLAY_GAP_CNTL get inited with DISP1 only to vblank, and never reprogrammed with new displays like DISP[12]_GAP. It seems not consistant, expected? regards, -- Sylvain BERTRAND