From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 29 Dec 2006 02:30:37 +0900 From: Paul Mundt Subject: Re: [PATCH] introduce config option to disable DMA zone on i386 Message-ID: <20061228173037.GA22099@linux-sh.org> References: <20061228170302.GA4335@dmt> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20061228170302.GA4335@dmt> Sender: owner-linux-mm@kvack.org Return-Path: To: Marcelo Tosatti Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, olpc-devel@laptop.org List-ID: On Thu, Dec 28, 2006 at 03:03:02PM -0200, Marcelo Tosatti wrote: > The following patch adds a config option to get rid of the DMA zone on i386. > > Architectures with devices that have no addressing limitations (eg. PPC) > already work this way. > > This is useful for custom kernel builds where the developer is certain that > there are no address limitations. > Don't know if you're aware or not, but there's already a CONFIG_ZONE_DMA in -mm that accomplishes this, which goes a bit further in that it rips out all of the generic ZONE_DMA references. Quite a few architectures that have no interest in the zone are using this already. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org