From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755790AbaELJlP (ORCPT ); Mon, 12 May 2014 05:41:15 -0400 Received: from mailout1.samsung.com ([203.254.224.24]:26449 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755155AbaELJk5 (ORCPT ); Mon, 12 May 2014 05:40:57 -0400 X-AuditID: cbfee691-b7f3e6d000002ce8-cd-5370971fedfd From: Jungseok Lee To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, Catalin.Marinas@arm.com, Marc Zyngier , Christoffer Dall Cc: linux-kernel@vger.kernel.org, linux-samsung-soc , steve.capper@linaro.org, sungjinn.chung@samsung.com, Arnd Bergmann , kgene.kim@samsung.com, ilho215.lee@samsung.com Subject: [PATCH v6 4/7] arm64: Add 4 levels of page tables definition with 4KB pages Date: Mon, 12 May 2014 18:40:47 +0900 Message-id: <000301cf6dc6$40bec4f0$c23c4ed0$@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: Ac9tw0Dvsu2TL3m8REun/RFVIdJ16A== Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrDIsWRmVeSWpSXmKPExsVy+t8zI1356QXBBg+6FCz+TjrGbvF+WQ+j xYvX/xgtjv5byGjRu+Aqm8XHU8fZLTY9vsZqcXnXHDaLGef3MVn8vfOPzWLFvGVsFh9mrGR0 4PFYM28No8fvX5MYPe5c28PmcX7TGmaPzUvqPfq2rGL0+LxJLoA9issmJTUnsyy1SN8ugStj 85k5zAWz1Sr2NSxjbmC8Lt/FyMkhIWAisa7hLDOELSZx4d56NhBbSGAZo8Sx+/UwNW3Hl7B0 MXIBxRcxSuxaOYcNwvnDKNF/YQ8LSBWbgKbEo7s97CAJEYEdjBKT1y5iBXGYBR4ySvx8ux9o BzuHsECYxI1wkHoWAVWJ07dXgW3jFbCUaFzXDGULSvyYfA9sJrOAlsT6nceZIGx5ic1r3kJd qiCx4+xrRhBbREBP4snf84wQNSIS+168YwRZKyHQySHRv+MJG8QyAYlvkw8BDeUASshKbDoA NUdS4uCKGywTGMVmIVk9C8nqWUhWz0KyYgEjyypG0dSC5ILipPQiU73ixNzi0rx0veT83E2M kJieuIPx/gHrQ4zJQOsnMkuJJucDU0JeSbyhsZmRhamJqbGRuaUZacJK4rzpj5KChATSE0tS s1NTC1KL4otKc1KLDzEycXBKNTDuX2LCrXrr9ZFWx2iDb7st1mzKk9m2pfNCgvOWi5Y8gsHK 6TNNb37V8zguleM481DIooX1vKLnr32+GH7ZwVu0tS/splt07VqzWXlP9349uTDt7LGmDLfP 1zzWx/3+V12ax39T71lWxcTTMoz33b3tZ/38n3f39ou3RwJeivW06CkbXA1cwbBTiaU4I9FQ i7moOBEAO2JIdP8CAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrFKsWRmVeSWpSXmKPExsVy+t9jAV356QXBBquXSFv8nXSM3eL9sh5G ixev/zFaHP23kNGid8FVNouPp46zW2x6fI3V4vKuOWwWM87vY7L4e+cfm8WKecvYLD7MWMno wOOxZt4aRo/fvyYxety5tofN4/ymNcwem5fUe/RtWcXo8XmTXAB7VAOjTUZqYkpqkUJqXnJ+ SmZeuq2Sd3C8c7ypmYGhrqGlhbmSQl5ibqqtkotPgK5bZg7QpUoKZYk5pUChgMTiYiV9O0wT QkPcdC1gGiN0fUOC4HqMDNBAwjrGjM1n5jAXzFar2NewjLmB8bp8FyMnh4SAiUTb8SUsELaY xIV769m6GLk4hAQWMUrsWjkHyvnDKNF/YQ9YFZuApsSjuz3sIAkRgR2MEpPXLmIFcZgFHjJK /Hy7n7mLkZ1DWCBM4kY4SD2LgKrE6dur2EBsXgFLicZ1zVC2oMSPyffAZjILaEms33mcCcKW l9i85i0zxEUKEjvOvmYEsUUE9CSe/D3PCFEjIrHvxTvGCYwCs5CMmoVk1Cwko2YhaVnAyLKK UTS1ILmgOCk911CvODG3uDQvXS85P3cTIzhlPJPawbiyweIQowAHoxIP7weGgmAh1sSy4src Q4wSHMxKIrwinUAh3pTEyqrUovz4otKc1OJDjMlAn05klhJNzgems7ySeENjEzMjSyMzCyMT c3PShJXEeQ+0WgcKCaQnlqRmp6YWpBbBbGHi4JRqYKyYtf7VLcfziRdU7ENm98TGfpx0warD +oSrj9w6aeMPBed3XMn17vf8F35mQmtEhaHeWpWKCOafpTufvLApO8kiKv5X4kTh6W18Jz3s 9114mPaoXj595bIVBc56S/f+4Q/eE7K8g7nx3AubpiuRzNM9joe+zfKUC+hb/iH2ascrN56F 0/RedyqxFGckGmoxFxUnAgDSZrQjXQMAAA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds hardware definition and types for 4 levels of translation tables with 4KB pages. Cc: Catalin Marinas Cc: Steve Capper Signed-off-by: Jungseok Lee Reviewed-by: Sungjinn Chung Acked-by: Kukjin Kim Reviewed-by: Christoffer Dall --- arch/arm64/include/asm/pgtable-4level-hwdef.h | 50 +++++++++++++++++ arch/arm64/include/asm/pgtable-4level-types.h | 71 +++++++++++++++++++++++++ 2 files changed, 121 insertions(+) create mode 100644 arch/arm64/include/asm/pgtable-4level-hwdef.h create mode 100644 arch/arm64/include/asm/pgtable-4level-types.h diff --git a/arch/arm64/include/asm/pgtable-4level-hwdef.h b/arch/arm64/include/asm/pgtable-4level-hwdef.h new file mode 100644 index 0000000..0ec84e2 --- /dev/null +++ b/arch/arm64/include/asm/pgtable-4level-hwdef.h @@ -0,0 +1,50 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +#ifndef __ASM_PGTABLE_4LEVEL_HWDEF_H +#define __ASM_PGTABLE_4LEVEL_HWDEF_H + +#define PTRS_PER_PTE 512 +#define PTRS_PER_PMD 512 +#define PTRS_PER_PUD 512 +#define PTRS_PER_PGD 512 + +/* + * PGDIR_SHIFT determines the size a top-level page table entry can map. + */ +#define PGDIR_SHIFT 39 +#define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT) +#define PGDIR_MASK (~(PGDIR_SIZE-1)) + +/* + * PUD_SHIFT determines the size the second level page table entry can map. + */ +#define PUD_SHIFT 30 +#define PUD_SIZE (_AC(1, UL) << PUD_SHIFT) +#define PUD_MASK (~(PUD_SIZE-1)) + +/* + * PMD_SHIFT determines the size the third level page table entry can map. + */ +#define PMD_SHIFT 21 +#define PMD_SIZE (_AC(1, UL) << PMD_SHIFT) +#define PMD_MASK (~(PMD_SIZE-1)) + +/* + * section address mask and size definitions. + */ +#define SECTION_SHIFT 21 +#define SECTION_SIZE (_AC(1, UL) << SECTION_SHIFT) +#define SECTION_MASK (~(SECTION_SIZE-1)) + +#endif diff --git a/arch/arm64/include/asm/pgtable-4level-types.h b/arch/arm64/include/asm/pgtable-4level-types.h new file mode 100644 index 0000000..7ad8dd2 --- /dev/null +++ b/arch/arm64/include/asm/pgtable-4level-types.h @@ -0,0 +1,71 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +#ifndef __ASM_PGTABLE_4LEVEL_TYPES_H +#define __ASM_PGTABLE_4LEVEL_TYPES_H + +#include + +typedef u64 pteval_t; +typedef u64 pmdval_t; +typedef u64 pudval_t; +typedef u64 pgdval_t; + +#undef STRICT_MM_TYPECHECKS + +#ifdef STRICT_MM_TYPECHECKS + +/* + * These are used to make use of C type-checking.. + */ +typedef struct { pteval_t pte; } pte_t; +typedef struct { pmdval_t pmd; } pmd_t; +typedef struct { pudval_t pud; } pud_t; +typedef struct { pgdval_t pgd; } pgd_t; +typedef struct { pteval_t pgprot; } pgprot_t; + +#define pte_val(x) ((x).pte) +#define pmd_val(x) ((x).pmd) +#define pud_val(x) ((x).pud) +#define pgd_val(x) ((x).pgd) +#define pgprot_val(x) ((x).pgprot) + +#define __pte(x) ((pte_t) { (x) } ) +#define __pmd(x) ((pmd_t) { (x) } ) +#define __pud(x) ((pud_t) { (x) } ) +#define __pgd(x) ((pgd_t) { (x) } ) +#define __pgprot(x) ((pgprot_t) { (x) } ) + +#else /* !STRICT_MM_TYPECHECKS */ + +typedef pteval_t pte_t; +typedef pmdval_t pmd_t; +typedef pudval_t pud_t; +typedef pgdval_t pgd_t; +typedef pteval_t pgprot_t; + +#define pte_val(x) (x) +#define pmd_val(x) (x) +#define pud_val(x) (x) +#define pgd_val(x) (x) +#define pgprot_val(x) (x) + +#define __pte(x) (x) +#define __pmd(x) (x) +#define __pud(x) (x) +#define __pgd(x) (x) +#define __pgprot(x) (x) + +#endif /* STRICT_MM_TYPECHECKS */ + +#endif /* __ASM_PGTABLE_4LEVEL_TYPES_H */ -- 1.7.10.4