From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH] drm/i915: Access to snooped system memory through the GTT is incoherent Date: Mon, 17 Dec 2012 12:26:49 +0100 Message-ID: <20121217112649.GI5737@phenom.ffwll.local> References: <1355661816-20509-1-git-send-email-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wi0-f173.google.com (mail-wi0-f173.google.com [209.85.212.173]) by gabe.freedesktop.org (Postfix) with ESMTP id 288B8E5C1A for ; Mon, 17 Dec 2012 03:25:18 -0800 (PST) Received: by mail-wi0-f173.google.com with SMTP id hn17so1809147wib.12 for ; Mon, 17 Dec 2012 03:25:17 -0800 (PST) Content-Disposition: inline In-Reply-To: <1355661816-20509-1-git-send-email-chris@chris-wilson.co.uk> 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: Chris Wilson Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Sun, Dec 16, 2012 at 12:43:36PM +0000, Chris Wilson wrote: > We ignore all the user requests to handle flushing to the GTT domain if > the user requests such on a snoopable bo, and as such access through the > GTT to such pages remains incoherent. The specs even warn that such > behaviour is undefined - a strong reason never to do so. > > Signed-off-by: Chris Wilson Queued for -next, thanks for the patch. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch