From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760508AbXE3WIA (ORCPT ); Wed, 30 May 2007 18:08:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756620AbXE3WHw (ORCPT ); Wed, 30 May 2007 18:07:52 -0400 Received: from an-out-0708.google.com ([209.85.132.244]:28643 "EHLO an-out-0708.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756382AbXE3WHv (ORCPT ); Wed, 30 May 2007 18:07:51 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Qlqer54c/PRQH7flVFPKVSbS2aLc9Dge3YZq2mMLZcqGvNwtpxNclYbpRAGED1WLSkdla5lbVuXH8/O0VrYQ9SAfvQFZMd9lHLbWDNn34UTGLmg3ASGaBOaOAOCAaSQYe9Z+5TpnHRebuFcTtUTTKVAE7HcuboOEkyCKjyikt3o= Message-ID: <21d7e9970705301507o2a89e824xdc6a980e8dbedaaf@mail.gmail.com> Date: Thu, 31 May 2007 08:07:45 +1000 From: "Dave Airlie" To: "H. Peter Anvin" Subject: Re: GFP_DMA32 and PAE x86 machines Cc: "Linus Torvalds" , "Andi Kleen" , "Linux Kernel Mailing List" In-Reply-To: <465DECD7.8030104@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <21d7e9970705301410m16ded9esdf7a49371c60a155@mail.gmail.com> <465DECD7.8030104@zytor.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Depending on split all lowmem is below 1GB which isn't exactly optimal, I'd llike all 4GB for DMA. Dave. On 5/31/07, H. Peter Anvin wrote: > Dave Airlie wrote: > > Just a question, > > > > So we have GFP_DMA32 on x86-64 to gives us memory below 4G? so we not > > have the same on PAE based x86 machines so I can use a consistent API > > from the drm? > > > > Otherwise it'll be stick some ifdefs in the drm to deal with it.. > > > > Well, all lowmem is below 4 GB on i386... > > -hpa >