From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wilson Subject: Re: [PATCH] Dont use hardware acceleration on Sandybridge rev 07 hardware or earlier. Date: Fri, 19 Nov 2010 21:47:48 +0000 Message-ID: References: <1290137397-10786-1-git-send-email-mhopf@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id 717D79E93C for ; Fri, 19 Nov 2010 13:47:51 -0800 (PST) In-Reply-To: <1290137397-10786-1-git-send-email-mhopf@suse.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Matthias Hopf , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Fri, 19 Nov 2010 04:29:57 +0100, Matthias Hopf wrote: > This is known to lock up the GPU even with the workaround in place. Before applying this patch, I'd like to know the results of using the FORCE_WAKE write before reading the ring buffer registers. Also as we are accumulating workarounds for SNB faster than is healthy, we should be careful about which one we mean at the time of the comment. -Chris -- Chris Wilson, Intel Open Source Technology Centre