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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT 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 35698C3279B for ; Mon, 2 Jul 2018 11:17:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E10422550D for ; Mon, 2 Jul 2018 11:17:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="TnIKokjx" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E10422550D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.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 S1753770AbeGBLRW (ORCPT ); Mon, 2 Jul 2018 07:17:22 -0400 Received: from mail-pl0-f68.google.com ([209.85.160.68]:45512 "EHLO mail-pl0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753155AbeGBLRU (ORCPT ); Mon, 2 Jul 2018 07:17:20 -0400 Received: by mail-pl0-f68.google.com with SMTP id bi1-v6so7801837plb.12 for ; Mon, 02 Jul 2018 04:17:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=5PpOo5CURtD1XpIQGYYJWhuyFZ9iY+u7nTdh2Dnh+u4=; b=TnIKokjxTkfOteatzA0qHiXIvsvfvH3CUgha+dY5mKFBtkE66/X5EdFNZtvBXvVbXg FrT9yCRJylXUfal71VfYsTRxNQySBCl0wZwG7menNQa7jS944oqbgD6iMemLrNh9XexI 0pNOAM6T93RFeKQCb23HUxzrokD9tO3x8BcqIG9e9ehhmRp9FaUf24MosrIWJw240v78 kIseFdCgoeF1fiwTT6iuveClLeXQgG+fR5bAyqXgL7ryAny5gSWwGnvpOkK64YVyEhf2 TakJLkzYD98qKuKeIPBoQfKF4UPceRxWBOzCC5HaSmFYya90QSQQ5TR+7+pDyds1f/nn zmJw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=5PpOo5CURtD1XpIQGYYJWhuyFZ9iY+u7nTdh2Dnh+u4=; b=LYABGvsE+fRBXvCVt3wl6ergIAN2L9W5kAP75zL0rSypjwPJVNlmJkTH9U8sqrTG+e 8oN1F36pwASQY7a0hutXI7BumWGbXXL94b6noPB0F7a8WI17TWhQI/tO1drF/x08Zg0N VtI3OSKyCu+Sk4SK7NNEamFHOs0iTY1THmG2ZHGG2qD8bqJ3vJZH2ZGmWbQ5IxTFhO5L JmSs3SsvhnCQxX7TxVV5XjAFp9MIb+5j3tBWHZdpi/BeoS3plYYgATBTfpWkTBpcOLA1 vUPV5H0+1KnU75F7rL+9pHIjksOCR8+SpKyr8PN0Y5+gzKeOasCIIYV3jr6MtXdtkA8r yfZQ== X-Gm-Message-State: APt69E0guOKEntoCL67AWjScQH3gSrJz7Q+jsjYEzFfHQIkVKkv/RKN2 SF26JLOMbFV/v7rok0RKAGM= X-Google-Smtp-Source: ADUXVKKWusifURQMZTwGwtMG88PvX/Ce7oNRuz4Ee484FNBY8iS8EKluTReElHpSKK+A75yhu41RFA== X-Received: by 2002:a17:902:2884:: with SMTP id f4-v6mr25467381plb.204.1530530240427; Mon, 02 Jul 2018 04:17:20 -0700 (PDT) Received: from toy.corp.qihoo.net ([104.192.108.9]) by smtp.gmail.com with ESMTPSA id s2-v6sm11262150pfh.186.2018.07.02.04.17.15 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 02 Jul 2018 04:17:19 -0700 (PDT) From: Jun Yao To: linux-arm-kernel@lists.infradead.org Cc: catalin.marinas@arm.com, will.deacon@arm.com, james.morse@arm.com, suzuki.poulose@arm.com, linux-kernel@vger.kernel.org Subject: [PATCH v3 0/5] Move {idmap_pg_dir,swapper_pg_dir} to .rodata Date: Mon, 2 Jul 2018 19:16:54 +0800 Message-Id: <20180702111659.25570-1-yaojun8558363@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Version 3 changes: As James Morse suggested[1], we split the old patch into 5 patches: 1. Introduce init_pg_dir. 2. Make __enable_mmu() take the ttbr1 page as an argument. 3. Create initial page tables in init_pg_dir and then create final page tables in swapper_pg_dir directly. 4. Make swapper_pg_dir smaller. 5. Move {idmap_pg_dir, swapper_pg_dir} to .rodata section. At the same time, fix bugs mentioned in [1] and [2]. Special thanks to James Morse and Suzuki K Poulose. Without their help, I couldn't write these patches. v2: https://patchwork.kernel.org/patch/10485641/ v1: https://patchwork.kernel.org/patch/10476595/ [1] https://patchwork.kernel.org/patch/10485641/ [2] https://patchwork.kernel.org/patch/10485643/ Jun Yao (5): arm64/mm: Introduce init_pg_dir arm64/mm: Make __enable_mmu() take the ttbr1 page as an argument arm64/mm: Create initial page tables in init_pg_dir arm64/mm: Make swapper_pg_dir smaller arm64/mm: Move {idmap_pg_dir, swapper_pg_dir} to .rodata section arch/arm64/include/asm/assembler.h | 23 ++++++++++++++ arch/arm64/include/asm/pgalloc.h | 48 ++++++++++++++++++++++++++++++ arch/arm64/include/asm/pgtable.h | 17 ++++++----- arch/arm64/kernel/head.S | 31 ++++++++++++++----- arch/arm64/kernel/setup.c | 1 + arch/arm64/kernel/sleep.S | 1 + arch/arm64/kernel/vmlinux.lds.S | 29 ++++++++++++------ arch/arm64/mm/mmu.c | 32 +++----------------- 8 files changed, 129 insertions(+), 53 deletions(-) -- 2.17.1