From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH 03/12] gma500: introduce the GTT and MMU handling logic Date: Thu, 3 Nov 2011 23:32:05 +0100 Message-ID: <20111103223205.GI2970@phenom.ffwll.local> References: <20111103182046.29503.60288.stgit@bob.linux.org.uk> <20111103182109.29503.89649.stgit@bob.linux.org.uk> <20111103201234.GF2970@phenom.ffwll.local> <20111103222518.3d9d6068@lxorguk.ukuu.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-fx0-f49.google.com (mail-fx0-f49.google.com [209.85.161.49]) by gabe.freedesktop.org (Postfix) with ESMTP id CA7159F5A8 for ; Thu, 3 Nov 2011 15:31:06 -0700 (PDT) Received: by faaq17 with SMTP id q17so2690822faa.36 for ; Thu, 03 Nov 2011 15:31:06 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20111103222518.3d9d6068@lxorguk.ukuu.org.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: Alan Cox Cc: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org On Thu, Nov 03, 2011 at 10:25:18PM +0000, Alan Cox wrote: > The ioremap for stolen RAM is about 8MB - we do actually need that mapped > for the console framebuffer. The GTT tables are pretty small (64K or so) > and the rest of the GTT space if ever used doesn't get an ioremap. > > It's a bit different to the i915 world because the CPU cannot indirect > via the GTT but must go directly. Ok, that makes sense. Fyi I'll try to go through the other patches in the coming days, but might take a while. -Daniel -- Daniel Vetter Mail: daniel@ffwll.ch Mobile: +41 (0)79 365 57 48