Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261791AbVAHFXQ (ORCPT ); Sat, 8 Jan 2005 00:23:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261787AbVAHFXO (ORCPT ); Sat, 8 Jan 2005 00:23:14 -0500 Received: from rproxy.gmail.com ([64.233.170.207]:60287 "EHLO rproxy.gmail.com") by vger.kernel.org with ESMTP id S261790AbVAHFW6 (ORCPT ); Sat, 8 Jan 2005 00:22:58 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=aiYqrPIpynsM/7LYFmobXk8wou1b+HGFRhyeG5wnVtsvNrWjCkJHvON0rPfWngc2dOkj0ItA99Jj3I2XOGA1IaBvkGLOvCuSnQ7EcuJNHW/az8J+LavEfBg6OVNcarsI00RGlJ2t6zhJh44Ax/3N/B/j+CeC/9KT7X8CU4q/QYk= Message-ID: <9e47339105010721225c0cfb32@mail.gmail.com> Date: Sat, 8 Jan 2005 00:22:53 -0500 From: Jon Smirl Reply-To: Jon Smirl To: Dave Jones , Andi Kleen , linux-kernel@vger.kernel.org, DRI Devel Subject: Re: chasing the four level page table In-Reply-To: <20050106214159.GG16373@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit References: <9e47339105010609175dabc381@mail.gmail.com> <9e47339105010610362fd7fffe@mail.gmail.com> <20050106193826.GC47320@muc.de> <9e4733910501061205354c9508@mail.gmail.com> <20050106214159.GG16373@redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 826 Lines: 20 On Thu, 6 Jan 2005 16:41:59 -0500, Dave Jones wrote: > No other device driver is also doing such lowlevel stuff with > page tables directly afaics. drivers/char/drm seem to be the only drivers > using [pgd|pmd|pte]_offset() routines. On 6 Jan 2005 20:38:27 +0100, Andi Kleen wrote: > Perhaps we should add a get_user_phys() or somesuch for this. I think this is a case where the memory manager is missing a function that DRM needs. If there was a get_user_phys() function DRM wouldn't need to walk the page tables. -- Jon Smirl jonsmirl@gmail.com - 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/