Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263563AbUCTWpS (ORCPT ); Sat, 20 Mar 2004 17:45:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263564AbUCTWpS (ORCPT ); Sat, 20 Mar 2004 17:45:18 -0500 Received: from holomorphy.com ([207.189.100.168]:47497 "EHLO holomorphy.com") by vger.kernel.org with ESMTP id S263563AbUCTWpO (ORCPT ); Sat, 20 Mar 2004 17:45:14 -0500 Date: Sat, 20 Mar 2004 14:45:00 -0800 From: William Lee Irwin III To: rmk@arm.linux.org.uk, Andrew Morton , Andrea Arcangeli , linux-kernel@vger.kernel.org, torvalds@osdl.org Subject: Re: can device drivers return non-ram via vm_ops->nopage? Message-ID: <20040320224500.GP2045@holomorphy.com> Mail-Followup-To: William Lee Irwin III , rmk@arm.linux.org.uk, Andrew Morton , Andrea Arcangeli , linux-kernel@vger.kernel.org, torvalds@osdl.org References: <20040320133025.GH9009@dualathlon.random> <20040320144022.GC2045@holomorphy.com> <20040320150621.GO9009@dualathlon.random> <20040320121345.2a80e6a0.akpm@osdl.org> <20040320205053.GJ2045@holomorphy.com> <20040320222639.K6726@flint.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040320222639.K6726@flint.arm.linux.org.uk> User-Agent: Mutt/1.5.5.1+cvs20040105i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1473 Lines: 29 On Sat, Mar 20, 2004 at 12:50:53PM -0800, William Lee Irwin III wrote: >> There are other reasons for doing it, e.g. unusual TLB attributes >> and/or unusual pagetable structures backing the virtual region. I don't >> see anyone standing up and screaming for more functionality than cache >> coherency and/or disablement now, so as far as I'm concerned, >> remap_area_pages() (or rmk's stuff) kills the issue. On Sat, Mar 20, 2004 at 10:26:39PM +0000, Russell King wrote: > I'm no longer planning on this. In fact, I see a future where I tell > people who want to use sound on ARM to go screw themselves because > there doesn't seem to be an acceptable solution to this problem. > Of course, this will lead to dirty hacks by many people who *REQUIRE* > sound to work, but I guess we just don't care about that. > (Yes, I'm pissed off over this issue.) This is the exact opposite of what I'd hoped come of this discussion. ISTR something about remap_area_pages() missing several pieces, but I pretty much need some kind of clarification to know what. Well, that, and I presumed your fixups for ALSA were headed toward mainline regardless after coping with whatever issue dwmw2 had (e.g. returning pfn's or something). -- wli - 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/