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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham 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 0B454C433F5 for ; Mon, 3 Sep 2018 12:51:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AA1EA20862 for ; Mon, 3 Sep 2018 12:51:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AA1EA20862 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727100AbeICRLy (ORCPT ); Mon, 3 Sep 2018 13:11:54 -0400 Received: from foss.arm.com ([217.140.101.70]:55122 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725866AbeICRLy (ORCPT ); Mon, 3 Sep 2018 13:11:54 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E32EE18A; Mon, 3 Sep 2018 05:51:52 -0700 (PDT) Received: from edgewater-inn.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id B3F3A3F5BC; Mon, 3 Sep 2018 05:51:52 -0700 (PDT) Received: by edgewater-inn.cambridge.arm.com (Postfix, from userid 1000) id 647BD1AE3030; Mon, 3 Sep 2018 13:52:06 +0100 (BST) Date: Mon, 3 Sep 2018 13:52:06 +0100 From: Will Deacon To: Nicholas Piggin Cc: Peter Zijlstra , Linus Torvalds , Linux Kernel Mailing List , Benjamin Herrenschmidt , Catalin Marinas , linux-arm-kernel , "Aneesh Kumar K.V" Subject: Re: [PATCH 00/12] Avoid synchronous TLB invalidation for intermediate page-table entries on arm64 Message-ID: <20180903125205.GA12642@arm.com> References: <1535645747-9823-1-git-send-email-will.deacon@arm.com> <20180831110054.475a3534@roar.ozlabs.ibm.com> <20180831095417.GF13166@arm.com> <20180831101014.GG24124@hirez.programming.kicks-ass.net> <20180831203234.7b8f4d13@roar.ozlabs.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180831203234.7b8f4d13@roar.ozlabs.ibm.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 31, 2018 at 08:32:34PM +1000, Nicholas Piggin wrote: > On Fri, 31 Aug 2018 12:10:14 +0200 > Peter Zijlstra wrote: > > > On Fri, Aug 31, 2018 at 10:54:18AM +0100, Will Deacon wrote: > > > > > Proposal below (omitted Linus because that seems to be the pattern elsewhere > > > in the file and he's not going to shout at himself when things break :) > > > Anybody I've missed? > > > > > > Will > > > > > > --->8 > > > > > > diff --git a/MAINTAINERS b/MAINTAINERS > > > index a5b256b25905..7224b5618883 100644 > > > --- a/MAINTAINERS > > > +++ b/MAINTAINERS > > > @@ -9681,6 +9681,15 @@ S: Maintained > > > F: arch/arm/boot/dts/mmp* > > > F: arch/arm/mach-mmp/ > > > > > > +MMU GATHER AND TLB INVALIDATION > > > +M: Will Deacon > > > +M: Nick Piggin > > Oh gee, I suppose. powerpc hash is kind of interesting because it's > crazy, Aneesh knows that code a lot better than I do. radix modulo > some minor details of exact instructions is fairly like x86 (he > wrote a lot of that code too AFAIK). Sure, as long as we have Power represented here. Would you rather add Aneesh instead of yourself, or shall we just add you both? > > > > +M: Peter Zijlstra > > > +L: linux-arch@vger.kernel.org > > Maybe put linux-mm as well? Or should there just be one list? If we do the landgrab on mmu_gather (which I think makes sense), then adding both lists makes sense to me. I'll spin this as a proper patch, along with Peter's code move. > > > +S: Maintained > > > +F: include/asm-generic/tlb.h > > > +F: arch/*/include/asm/tlb.h > > > + > > > MN88472 MEDIA DRIVER > > > M: Antti Palosaari > > > L: linux-media@vger.kernel.org > > > > If we're going to do that (and I'm not opposed); it might make sense to > > do something like the below and add: > > > > F: mm/mmu_gather.c > > I think that is a good idea regardless. How do feel about calling it > tlb.c? Easier to type and autocompletes sooner. No strong opinion on name, but I slightly prefer mmu_gather.c so that it avoids any remote possibility of confusion with tlb.c vs hugetlb.c Will