From: Christoph Lameter <clameter@sgi.com>
To: Paul Mundt <lethal@linux-sh.org>
Cc: Christoph Hellwig <hch@infradead.org>,
linux-mm@kvack.org, Nick Piggin <nickpiggin@yahoo.com.au>,
linux-ia64@vger.kernel.org, Marcelo Tosatti <marcelo@kvack.org>,
Arjan van de Ven <arjan@infradead.org>,
Martin Bligh <mbligh@google.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Andi Kleen <ak@suse.de>,
linux-arch@vger.kernel.org
Subject: Re: [PATCH 2/6] Introduce CONFIG_ZONE_DMA
Date: Mon, 18 Sep 2006 10:33:00 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0609181031420.19312@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20060918152243.GA4320@localhost.na.rta>
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?
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next prev parent reply other threads:[~2006-09-18 17:33 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-18 18:36 [PATCH 0/8] Optional ZONE_DMA V2 Christoph Lameter
2006-09-18 18:36 ` [PATCH 1/8] Deal with cases of ZONE_DMA meaning the first zone Christoph Lameter
2006-09-18 18:36 ` [PATCH 2/8] Introduce CONFIG_ZONE_DMA Christoph Lameter
2006-09-18 18:36 ` [PATCH 3/8] Optional ZONE_DMA in the VM Christoph Lameter
2006-09-18 18:36 ` [PATCH 4/8] Optional ZONE_DMA for i386 Christoph Lameter
2006-09-18 18:36 ` [PATCH 5/8] Optional ZONE_DMA for x86_64 Christoph Lameter
2006-09-18 18:36 ` [PATCH 6/8] Optional ZONE_DMA for ia64 Christoph Lameter
2006-09-18 18:36 ` [PATCH 7/8] Remove ZONE_DMA remains from parisc Christoph Lameter
2006-09-18 18:36 ` [PATCH 8/8] Remove ZONE_DMA remains from sh/sh64 Christoph Lameter
[not found] ` <20060911222729.4849.69497.sendpatchset@schroedinger.engr.sgi.com>
[not found] ` <20060911222744.4849.26386.sendpatchset@schroedinger.engr.sgi.com>
[not found] ` <450600C7.7090801@yahoo.com.au>
2006-09-12 1:40 ` [PATCH 3/6] Optional ZONE_DMA in the VM Christoph Lameter
[not found] ` <20060912133457.GC10689@sgi.com>
[not found] ` <Pine.LNX.4.64.0609121032310.11278@schroedinger.engr.sgi.com>
2006-09-12 17:47 ` [PATCH 0/8] Optional ZONE_DMA V1 Martin Bligh
2006-09-12 17:53 ` Christoph Lameter
[not found] ` <1158046205.2992.1.camel@laptopd505.fenrus.org>
[not found] ` <Pine.LNX.4.64.0609121024290.11188@schroedinger.engr.sgi.com>
[not found] ` <yq0d5a0fbcj.fsf@jaguar.mkp.net>
[not found] ` <Pine.LNX.4.64.0609130109030.15792@schroedinger.engr.sgi.com>
[not found] ` <4507D4EE.4060501@sgi.com>
2006-09-13 17:23 ` Christoph Lameter
2006-09-13 17:49 ` Jack Steiner
2006-09-13 18:00 ` Christoph Lameter
2006-09-14 8:52 ` Jes Sorensen
2006-09-14 16:55 ` Christoph Lameter
[not found] ` <20060911222739.4849.79915.sendpatchset@schroedinger.engr.sgi.com>
[not found] ` <20060918135559.GB15096@infradead.org>
[not found] ` <20060918152243.GA4320@localhost.na.rta>
2006-09-18 17:33 ` Christoph Lameter [this message]
2006-09-18 22:45 ` [PATCH 2/6] Introduce CONFIG_ZONE_DMA Paul Mundt
2006-09-18 22:58 ` Christoph Lameter
2006-09-18 23:25 ` Paul Mundt
-- strict thread matches above, loose matches on Subject: below --
2006-09-11 22:30 [PATCH 0/8] Optional ZONE_DMA V1 Christoph Lameter
2006-09-11 22:30 ` [PATCH 2/6] Introduce CONFIG_ZONE_DMA Christoph Lameter
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