Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760907AbXLUMnn (ORCPT ); Fri, 21 Dec 2007 07:43:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750876AbXLUMng (ORCPT ); Fri, 21 Dec 2007 07:43:36 -0500 Received: from sovereign.computergmbh.de ([85.214.69.204]:35285 "EHLO sovereign.computergmbh.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750723AbXLUMnf (ORCPT ); Fri, 21 Dec 2007 07:43:35 -0500 Date: Fri, 21 Dec 2007 13:43:34 +0100 (CET) From: Jan Engelhardt To: James Courtier-Dutton cc: =?ISO-8859-1?Q?=22J=2EA=2E_Magall=F3n=22?= , "linux-os (Dick Johnson)" , Linux kernel Subject: Re: Trying to convert old modules to newer kernels In-Reply-To: <476BACD6.5060900@superbug.co.uk> Message-ID: References: <20071219202323.GH2310@csclub.uwaterloo.ca> <20071220150255.GE2308@csclub.uwaterloo.ca> <20071220182815.GA5438@uranus.ravnborg.org> <20071220220547.GA5641@uranus.ravnborg.org> <20071221005303.771032f3@werewolf> <476BACD6.5060900@superbug.co.uk> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 747 Lines: 18 On Dec 21 2007 12:08, James Courtier-Dutton wrote: > That being said, I don't think sse and mmx are available in kernel > space, so I would have suggested doing all the grunt work in > userspace would be better for this persons application so that he > could use sse and mmx etc. > They are available, you just need to pay attention not to trash a process's context. IIRC this has been done for 387 FPUting. (The 'trigger' thing in save_i387() in arch/x86/i387_32.c probably.) Probably not for SSE. -- 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/