From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Barnes Subject: Re: Request for unicore32 architecture codes to merge into linux-next Date: Thu, 20 Jan 2011 11:42:16 -0800 Message-ID: <20110120114216.4b23182a@jbarnes-desktop> References: <004901cbb4d5$b9bb1370$2d313a50$@mprc.pku.edu.cn> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from cpoproxy3-pub.bluehost.com ([67.222.54.6]:60804 "HELO cpoproxy3-pub.bluehost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1750894Ab1ATTtA (ORCPT ); Thu, 20 Jan 2011 14:49:00 -0500 In-Reply-To: <004901cbb4d5$b9bb1370$2d313a50$@mprc.pku.edu.cn> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Guan Xuetao Cc: sfr@canb.auug.org.au, Arnd Bergmann , gregkh@suse.de, dmitry.torokhov@gmail.com, dtor@mail.ru, rubini@cvml.unipv.it, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-next@vger.kernel.org On Sun, 16 Jan 2011 01:00:31 +0800 "Guan Xuetao" wrote: > Hi, > > I want to merge unicore32 repo into linux-next tree, the position is (unicore32 branch): > git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32.git > > Signed-off-by: Guan Xuetao > --- Took a quick look at the PCI parts, looks like you have a pretty big DMA restriction. You could provide your own dma map ops and make the allocator a bit smarter about where it gets memory (preferentially allocating from the DMA'able region, which you could hide). Or do you find that swiotlb does ok in general? Other than that you had pretty tiny bits of enabling code, I assume they work on your platform (config space access & setup, etc.). -- Jesse Barnes, Intel Open Source Technology Center