From patchwork Mon Apr 19 10:47:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 12211411 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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 D0F55C43462 for ; Mon, 19 Apr 2021 10:47:30 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3EA7061166 for ; Mon, 19 Apr 2021 10:47:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3EA7061166 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 854A36B006E; Mon, 19 Apr 2021 06:47:28 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 72E1C6B0072; Mon, 19 Apr 2021 06:47:28 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 532896B0070; Mon, 19 Apr 2021 06:47:28 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0088.hostedemail.com [216.40.44.88]) by kanga.kvack.org (Postfix) with ESMTP id 25FD66B0036 for ; Mon, 19 Apr 2021 06:47:28 -0400 (EDT) Received: from smtpin37.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id C339C181AEF3E for ; Mon, 19 Apr 2021 10:47:27 +0000 (UTC) X-FDA: 78048790134.37.CF1E976 Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) by imf01.hostedemail.com (Postfix) with ESMTP id 20C7F5001528 for ; Mon, 19 Apr 2021 10:47:25 +0000 (UTC) Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4FP3RX3d3FzB09b1; Mon, 19 Apr 2021 12:47:20 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id PNvDtWqSfhJq; Mon, 19 Apr 2021 12:47:20 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4FP3RX2Dw7zB09Zy; Mon, 19 Apr 2021 12:47:20 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 2023B8B7BB; Mon, 19 Apr 2021 12:47:25 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id vL0j2I5OqooE; Mon, 19 Apr 2021 12:47:25 +0200 (CEST) Received: from po16121vm.idsi0.si.c-s.fr (po15451.idsi0.si.c-s.fr [172.25.230.103]) by messagerie.si.c-s.fr (Postfix) with ESMTP id D2F1A8B7B4; Mon, 19 Apr 2021 12:47:24 +0200 (CEST) Received: by po16121vm.idsi0.si.c-s.fr (Postfix, from userid 0) id B2CDC679FC; Mon, 19 Apr 2021 10:47:24 +0000 (UTC) Message-Id: From: Christophe Leroy Subject: [PATCH v2 0/4] Convert powerpc to GENERIC_PTDUMP To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Steven Price , akpm@linux-foundation.org, dja@axtens.net Cc: Oliver O'Halloran , linux-arch@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Date: Mon, 19 Apr 2021 10:47:24 +0000 (UTC) X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 20C7F5001528 X-Stat-Signature: nhquancimwesg7e7x9remf8xidoh5bu4 Received-SPF: none (csgroup.eu>: No applicable sender policy available) receiver=imf01; identity=mailfrom; envelope-from=""; helo=pegase1.c-s.fr; client-ip=93.17.236.30 X-HE-DKIM-Result: none/none X-HE-Tag: 1618829245-692239 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This series converts powerpc to generic PTDUMP. For that, we first need to add missing hugepd support to pagewalk and ptdump. v2: - Reworked the pagewalk modification to add locking and check ops->pte_entry - Modified powerpc early IO mapping to have gaps between mappings - Removed the logic that checked for contiguous physical memory - Removed the articial level calculation in ptdump_pte_entry(), level 4 is ok for all. - Removed page_size argument to note_page() Christophe Leroy (4): mm: pagewalk: Fix walk for hugepage tables powerpc/mm: Leave a gap between early allocated IO areas powerpc/mm: Properly coalesce pages in ptdump powerpc/mm: Convert powerpc to GENERIC_PTDUMP arch/powerpc/Kconfig | 2 + arch/powerpc/Kconfig.debug | 30 ----- arch/powerpc/mm/Makefile | 2 +- arch/powerpc/mm/ioremap_32.c | 4 +- arch/powerpc/mm/ioremap_64.c | 2 +- arch/powerpc/mm/mmu_decl.h | 2 +- arch/powerpc/mm/ptdump/8xx.c | 6 +- arch/powerpc/mm/ptdump/Makefile | 9 +- arch/powerpc/mm/ptdump/book3s64.c | 6 +- arch/powerpc/mm/ptdump/ptdump.c | 187 ++++++++---------------------- arch/powerpc/mm/ptdump/shared.c | 6 +- mm/pagewalk.c | 58 ++++++++- 12 files changed, 127 insertions(+), 187 deletions(-)