From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Mon, 19 Mar 2007 15:33:22 +0000 (GMT) Received: from h155.mvista.com ([63.81.120.155]:9152 "EHLO imap.sh.mvista.com") by ftp.linux-mips.org with ESMTP id S20021893AbXCSPdR (ORCPT ); Mon, 19 Mar 2007 15:33:17 +0000 Received: from [192.168.1.248] (unknown [10.150.0.9]) by imap.sh.mvista.com (Postfix) with ESMTP id 391173ED1; Mon, 19 Mar 2007 08:32:42 -0700 (PDT) Message-ID: <45FEAD11.7070503@ru.mvista.com> Date: Mon, 19 Mar 2007 18:32:33 +0300 From: Sergei Shtylyov Organization: MontaVista Software Inc. User-Agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.2) Gecko/20040803 X-Accept-Language: ru, en-us, en-gb MIME-Version: 1.0 To: Atsushi Nemoto Cc: linux-mips@linux-mips.org Subject: Re: ZONE_DMA on MIPS References: <20070320.000947.88474417.anemo@mba.ocn.ne.jp> In-Reply-To: <20070320.000947.88474417.anemo@mba.ocn.ne.jp> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 14559 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: sshtylyov@ru.mvista.com Precedence: bulk X-list: linux-mips Hello. Atsushi Nemoto wrote: > Some ZONE_DMA patches were merged in 2.6.21. On most MIPS, ZONE_DMA > is not needed, isn't it? > > Currently JAZZ, MALTA, QEMU, IP22, SNI_RM, RBTX4938 defines > GENERIC_ISA_DMA so they may need ZONE_DMA (though I wonder QEMU or > RBTX4938 really need it...) Erm, concertning the latter -- probably not, as I'm not seeing other FPCIB0 backplane support in the source. > Are there any other platforms requires special DMA zone? Erm, RBHMA4[24]00 have 8259 on the backplane... And the NEC boards with the Rockhopper backplane as well... > --- > Atsushi Nemoto WBR, Sergei