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,URIBL_BLOCKED, 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 8A3B7ECDFB1 for ; Tue, 17 Jul 2018 09:56:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3CAEA20C0E for ; Tue, 17 Jul 2018 09:56:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="e7Lsl9aO" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3CAEA20C0E 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 S1730638AbeGQK2O (ORCPT ); Tue, 17 Jul 2018 06:28:14 -0400 Received: from mail-pl0-f67.google.com ([209.85.160.67]:34172 "EHLO mail-pl0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730209AbeGQK2M (ORCPT ); Tue, 17 Jul 2018 06:28:12 -0400 Received: by mail-pl0-f67.google.com with SMTP id f6-v6so253535plo.1 for ; Tue, 17 Jul 2018 02:56:24 -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=OP9d8s3+jqqX8NpZ8EoaEbYX0CdFVbr8J+seeihCynU=; b=e7Lsl9aO+i1IRwaIRT8vQAUEKEhsUdBBUZ2gT9a7iBVFjYD9HhSk/J2yWDGnNEHFIl y2jCvDcLwFNLC4erdD6tPs9JFPHBPQ5U1FVop7dQ4loYt4JOoGe2TMCzWkT/ouAGUnrj t0VEXWJqQQyAJiT72swrus94bR4rhkJjs7caRknwP2Vc/elL3cQeoY/Pqj8ZkiwRZUTe tzD2tn/mFR2jx9lfimfPN6v2FiNHUxtqKM8K7ljaDaeLmcXAUe4cKDyjDVmZJtZz2ak3 oadkc96eEuLe7xU7wqgYr8eqb0l9LPCpUd3O8otHuJgdhUyo0J4osQwM8Zt4qp/hTrql cRgQ== 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=OP9d8s3+jqqX8NpZ8EoaEbYX0CdFVbr8J+seeihCynU=; b=CifnYp0palc0OhShDwRyCYEDTv78Gp15cK4R+0r6kj+3o/ix+cc9kycCpknehd6/RF sqVd9PVmb6HibiTo8a8kBGB7Z8dt76qU3vUGj6afKdHksq4+sUI8hm6MqXol4NVWQjz3 mxGsNuIqD9eajAgUfnKu1QYNHvIObnXhMPUDf58IpJD0zds8fkeQpWiRcCOXuPM6mgrB IoXJQQC+ujPTzF+uRh3R8dGOefYi0cuLfVxoU9jv6HKARDVOXUVnSGOZRohsb48Lur0T gugVVnGQbCBdgFMH2NHDjZXhJsm/C1CiTu521B6U2ap00JRcKZRT4n1EVpwP/q28s3J3 zIqA== X-Gm-Message-State: AOUpUlEErd8Egq14OeKWgzelrTo/a42swBb0p4RkuLL3cxGuNYg/DBwE Pl+wf5GdNvVfWglv9YpZs14= X-Google-Smtp-Source: AAOMgpeFWy8NzJtPcpicWcbBfzfvz6ICiKhnH1Nyskbs62T0BjeF/Oc3myv7HQWUVlMsoT42xG4Z2w== X-Received: by 2002:a17:902:8482:: with SMTP id c2-v6mr968334plo.45.1531821384634; Tue, 17 Jul 2018 02:56:24 -0700 (PDT) Received: from toy.corp.qihoo.net ([104.192.108.9]) by smtp.gmail.com with ESMTPSA id u2-v6sm1232542pfn.59.2018.07.17.02.56.22 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 17 Jul 2018 02:56:24 -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, linux-kernel@vger.kernel.org Subject: [PATCH v4 0/6] arm64/mm: Move {idmap_pg_dir,swapper_pg_dir} to Date: Tue, 17 Jul 2018 17:56:02 +0800 Message-Id: <20180717095608.11008-1-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 4 changes: 1. Rename INIT_DIR to INIT_PG_TABLES and move it outside the '.init.data' section[1]. 2. Move the 'count' calculation to clear_pages()[1]. 3. Rearrange register in __enable_mmu() and pass ttbr1 through the x1 register[2]. 4. Add commit message to explain why we can make swapper_pg_dir smaller[3]. 5. Rewrite in_swapper_pgdir() and use pgd_set_fixmap() to populate swapper_pg_dir. At the same time, add a spin lock to avoid race conditions[4]. 6. Move {idmap_pg_dir,tramp_pg_dir,reserved_ttbr0,swapper_pg_dir} to the KERNEL_PG_TABLES macro. And put this macro after NOTES[4]. v3: https://www.spinics.net/lists/arm-kernel/msg662537.html v2: https://patchwork.kernel.org/patch/10485641/ v1: https://patchwork.kernel.org/patch/10476595/ [1] https://lkml.org/lkml/2018/7/6/238 [2] https://lkml.org/lkml/2018/7/6/239 [3] https://lkml.org/lkml/2018/7/6/243 [4] https://lkml.org/lkml/2018/7/11/782 Jun Yao (6): 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: Populate swapper_pg_dir by fixmap arm64/mm: Move {idmap_pg_dir, swapper_pg_dir} to .rodata section arch/arm64/include/asm/assembler.h | 29 +++++++++++++ arch/arm64/include/asm/pgtable.h | 66 ++++++++++++++++++++++++++---- arch/arm64/kernel/head.S | 45 ++++++++++++-------- arch/arm64/kernel/setup.c | 1 + arch/arm64/kernel/sleep.S | 1 + arch/arm64/kernel/vmlinux.lds.S | 47 ++++++++++++++------- arch/arm64/mm/mmu.c | 34 +++------------ 7 files changed, 154 insertions(+), 69 deletions(-) -- 2.17.1