Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759808Ab3GZUpd (ORCPT ); Fri, 26 Jul 2013 16:45:33 -0400 Received: from mail-ob0-f174.google.com ([209.85.214.174]:45814 "EHLO mail-ob0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759734Ab3GZUpc (ORCPT ); Fri, 26 Jul 2013 16:45:32 -0400 MIME-Version: 1.0 X-Originating-IP: [178.83.130.250] In-Reply-To: <51F2DBDD.8020709@zytor.com> References: <51F1ED8F.40703@zytor.com> <20130726083314.4e2e333f@jbarnes-desktop> <20130726202418.GD21415@gmail.com> <51F2DBDD.8020709@zytor.com> Date: Fri, 26 Jul 2013 22:45:31 +0200 X-Google-Sender-Auth: 40qGWYpTwgoGfYMKUZBV87b4UNQ Message-ID: Subject: Re: [Intel-gfx] Ugly patches for stolen reservation From: Daniel Vetter To: "H. Peter Anvin" Cc: Ingo Molnar , intel-gfx , Linux Kernel Mailing List , Ingo Molnar , Linus Torvalds , Thomas Gleixner Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1164 Lines: 31 On Fri, Jul 26, 2013 at 10:28 PM, H. Peter Anvin wrote: > On 07/26/2013 01:24 PM, Ingo Molnar wrote: >> >> Am I being too pedantic in expecting that we still mark it >> e820-reserved? >> >> This area really isnt an ordinary PCI resource such as a >> BAR or an MMIO region. It's truly system RAM (which cannot >> be moved/reallocated), used by graphics hardware, and the >> firmware should have marked it reserved. >> >> (The end result should be the same in any case, so this is >> a detail.) >> > > I, too, would prefer to see it marked as reserved. Yeah, current patches mark it as reserved. But since we don't want to duplicate the detection code we want to switch to a more unique name when mapping the e820 region into a iomem reservation so that when i915.ko loads we can dig it out again. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch -- 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/