From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=0.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,URIBL_DBL_ABUSE_MALW,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA168C2D0DB for ; Wed, 29 Jan 2020 19:31:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BDBF020663 for ; Wed, 29 Jan 2020 19:31:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="NvpFi2pN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727112AbgA2TbU (ORCPT ); Wed, 29 Jan 2020 14:31:20 -0500 Received: from merlin.infradead.org ([205.233.59.134]:52300 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726203AbgA2TbU (ORCPT ); Wed, 29 Jan 2020 14:31:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=mPKhSGzCXQSe05xs1pmWo6QlfzIgdBymEOx6dbVc6AY=; b=NvpFi2pNiSM8B9O2oBcNQYYoO ifYEMAzEST4o10GmLrqVPJu7C+7sJqDPKepPXwdv2Kkx7W7egizawuK78Kz31imUiOodzSv8IO8+n 1DjDMJ5iUas9rmz2SjBfsM/4/ccdl+Uz+IgUKQG+WY+uF7HT92GIt1ACiKRGY9JpInpjDJf2t64Fw F2esNU97u3UZ1xf8JhNOulYXpbYONuhIxLBu5GFPW72L0qTtdRRfphOoWfO4s+f8is0yQGCtNCSOH Ul0uhQXO097XAG5UECRzjX8EHJOPdbUfOibWnf1+2bmSYl1/fcb9LQ9D6JK3mK8c8UbGOquc+G5SF 78jHLdeGw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1iwt3P-0006bK-7o; Wed, 29 Jan 2020 19:31:11 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 2EF79300606; Wed, 29 Jan 2020 20:29:26 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 16F582B7337B9; Wed, 29 Jan 2020 20:31:09 +0100 (CET) Date: Wed, 29 Jan 2020 20:31:09 +0100 From: Peter Zijlstra To: Michael Schmitz Cc: John Paul Adrian Glaubitz , Geert Uytterhoeven , Linux/m68k , Linux Kernel Development , Will Deacon Subject: Re: [PATCH 0/5] Rewrite Motorola MMU page-table layout Message-ID: <20200129193109.GS14914@hirez.programming.kicks-ass.net> References: <20200129103941.304769381@infradead.org> <20200129115412.GN14914@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-m68k-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-m68k@vger.kernel.org On Thu, Jan 30, 2020 at 07:52:11AM +1300, Michael Schmitz wrote: > Peter, > > On Thu, Jan 30, 2020 at 12:54 AM Peter Zijlstra wrote: > > > > On Wed, Jan 29, 2020 at 11:49:13AM +0100, John Paul Adrian Glaubitz wrote: > > > > > > [1] https://wiki.debian.org/M68k/QemuSystemM68k > > > > Now, if only debian would actually ship that :/ > > > > AFAICT that emulates a q800 which is another 68040 and should thus not > > differ from ARAnyM. > > > > I'm fairly confident in the 040 bits, it's the 020/030 things that need > > coverage. > > I'll take a look - unless this eats up way more kernel memory for page > tables, it should still boot on my Falcon. It should actually be better in most cases I think, since we no longer require all 16 pte-tables to map consecutive (virtual) memory.