Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756731Ab1DZOaE (ORCPT ); Tue, 26 Apr 2011 10:30:04 -0400 Received: from moutng.kundenserver.de ([212.227.126.171]:52481 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756464Ab1DZOaC (ORCPT ); Tue, 26 Apr 2011 10:30:02 -0400 From: Arnd Bergmann To: KyongHo Cho Subject: Re: [Linaro-mm-sig] [RFC] ARM DMA mapping TODO, v1 Date: Tue, 26 Apr 2011 16:29:51 +0200 User-Agent: KMail/1.12.2 (Linux/2.6.37; KDE/4.3.2; x86_64; ; ) Cc: Zach Pfeffer , Jesse Barnes , linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Ilho Lee , sanghyun75.lee@samsung.com References: <201104212129.17013.arnd@arndb.de> In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201104261629.51765.arnd@arndb.de> X-Provags-ID: V02:K0:puaLHh/UejS+A79OzcNRWLztlL7u0BJQbn3F9WyiFkJ xEJFyuPcAJiuXVD6eCJZGbO9e5zNLLYPN+v9BXE1Opm3VNLY4h S3+2TW3V8nZX40Z0kpjlpjMsI/LKuWvHpGsJrp+RdRuHcDLN6W lbLMseb5AB+gR2jV72f33KvRaVmdcjVJ6XH1O8/xkfCXwGzUmu TzGGJJ4SLVMJJ0KMb15Jw== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 538 Lines: 14 On Friday 22 April 2011, KyongHo Cho wrote: > IOMMU api does not provide virtual memory management. > DMA api is not flexible for all our use-cases. We can fix either problem by changing the existing interfaces, which is much more maintainable in the long run than adding a third one. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/