From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 18 Sep 2006 10:33:00 -0700 (PDT) From: Christoph Lameter Subject: Re: [PATCH 2/6] Introduce CONFIG_ZONE_DMA In-Reply-To: <20060918152243.GA4320@localhost.na.rta> Message-ID: References: <20060911222729.4849.69497.sendpatchset@schroedinger.engr.sgi.com> <20060911222739.4849.79915.sendpatchset@schroedinger.engr.sgi.com> <20060918135559.GB15096@infradead.org> <20060918152243.GA4320@localhost.na.rta> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Paul Mundt Cc: Christoph Hellwig , linux-mm@kvack.org, Nick Piggin , linux-ia64@vger.kernel.org, Marcelo Tosatti , Arjan van de Ven , Martin Bligh , KAMEZAWA Hiroyuki , Andi Kleen , linux-arch@vger.kernel.org List-ID: On Tue, 19 Sep 2006, Paul Mundt wrote: > sh and sh64 have no use for ZONE_DMA, it's effectively ZONE_DMA == > ZONE_NORMAL anyways, so it can be safely switched off (though > arch/sh/mm/init.c should then be changed to use ZONE_NORMAL if ZONE_DMA > goes away, as we currently place all lowmem in ZONE_DMA, likewise for > sh64). None of our DMA controllers have any particular limitations where > ZONE_DMA would be useful at least. Ok. I dropped the CONFIG_ZONE_DMA for sh so you will no longer have a DMA zone when this patch goes in. sh64 has the same strange code as parisc: config GENERIC_ISA_DMA bool You do not have ISA_DMA so I should drop these lines? -- 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