Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755873AbYFZGAj (ORCPT ); Thu, 26 Jun 2008 02:00:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754841AbYFZGAF (ORCPT ); Thu, 26 Jun 2008 02:00:05 -0400 Received: from gw.goop.org ([64.81.55.164]:56880 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752575AbYFZGAE (ORCPT ); Thu, 26 Jun 2008 02:00:04 -0400 Message-ID: <48633057.1040106@goop.org> Date: Wed, 25 Jun 2008 22:59:51 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Keith Packard CC: Arjan van de Ven , Dave Airlie , Dave Airlie , linux-kernel Subject: Re: kmap_atomic_pfn for PCI BAR access? References: <1214242487.11887.35.camel@koto.keithp.com> <4862EE4C.4060009@goop.org> <21d7e9970806251823q3405e192q13d4944bd0cc3291@mail.gmail.com> <20080625213603.0e82805b@infradead.org> <1214458589.1044.45.camel@koto.keithp.com> In-Reply-To: <1214458589.1044.45.camel@koto.keithp.com> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 530 Lines: 19 Keith Packard wrote: > On Wed, 2008-06-25 at 21:36 -0700, Arjan van de Ven wrote: > > >> well kmap does a tlb flush as well... >> > > kmap_atomic > Anything that does any kind of pagetable manipulation needs to do tlb flushes. kunmap_atomic handles the flushing. J -- 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/