Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752843AbaEACe2 (ORCPT ); Wed, 30 Apr 2014 22:34:28 -0400 Received: from mailout2.samsung.com ([203.254.224.25]:26357 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752461AbaEACeW (ORCPT ); Wed, 30 Apr 2014 22:34:22 -0400 X-AuditID: cbfee68d-b7f4e6d000004845-79-5361b2a58740 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 v5 4/6] arm64: Add 4 levels of page tables definition with 4KB pages Date: Thu, 01 May 2014 11:34:12 +0900 Message-id: <000401cf64e5$d6c18990$84449cb0$@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: Ac9k4hhznX/GBvnpSzeaJXTQqhk8KA== Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrDIsWRmVeSWpSXmKPExsVy+t8zY92lmxKDDb69EbD4O+kYu8X7ZT2M Fi9e/2O0OPpvIaNF74KrbBYfTx1nt9j0+BqrxeVdc9gsZpzfx2Tx984/NosV85axWXyYsZLR gcdjzbw1jB6/f01i9LhzbQ+bx/lNa5g9Ni+p9+jbsorR4/MmuQD2KC6blNSczLLUIn27BK6M zv2zWQs2qFacWHmbpYHxm1wXIyeHhICJxLa7ExghbDGJC/fWs3UxcnEICSxjlLj6vpMdpmjF jNXsEInpjBKP365mAUkICfxhlPh02Q3EZhPQlHh0twesSERgB6PE5LWLWEEcZoGHjBI/3+5n 7mLk4BAWCJO41FgF0sAioCqxbPtPsA28ApYSa9r/MkLYghI/Jt8DW8AsoCWxfudxJghbXmLz mrfMEBcpSOw4+5oRZKSIgJ7E8ee6ECUiEvtevGMEWSsh0Msh8e7pKlaIXQIS3yYfYgGplxCQ ldh0AGqMpMTBFTdYJjCKzUKyeRaSzbOQbJ6FZMUCRpZVjKKpBckFxUnpRYZ6xYm5xaV56XrJ +bmbGCEx3buD8fYB60OMyUDrJzJLiSbnA1NCXkm8obGZkYWpiamxkbmlGWnCSuK8SQ+TgoQE 0hNLUrNTUwtSi+KLSnNSiw8xMnFwSjUwWmS0uBYElitPf9Mk/v4e//YtD/v7b079Md/ETOdB jXPInad5X9Pemm9KXCeYadOeXbH5OsdF8d71x+Tcklx+v92mPaXptVSj5HOtu34V1nv+RDZ6 XX7p8ep98HTdzsiFz0J3LHlZpjdpTpbbijO8k2RrXniEvHhxfn/QzwQ1f+kr/ulLjSefVWIp zkg01GIuKk4EAD9QaZr/AgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrJKsWRmVeSWpSXmKPExsVy+t9jQd2lmxKDDfa18Vj8nXSM3eL9sh5G ixev/zFaHP23kNGid8FVNouPp46zW2x6fI3V4vKuOWwWM87vY7L4e+cfm8WKecvYLD7MWMno wOOxZt4aRo/fvyYxety5tofN4/ymNcwem5fUe/RtWcXo8XmTXAB7VAOjTUZqYkpqkUJqXnJ+ SmZeuq2Sd3C8c7ypmYGhrqGlhbmSQl5ibqqtkotPgK5bZg7QpUoKZYk5pUChgMTiYiV9O0wT QkPcdC1gGiN0fUOC4HqMDNBAwjrGjM79s1kLNqhWnFh5m6WB8ZtcFyMnh4SAicSKGavZIWwx iQv31rN1MXJxCAlMZ5R4/HY1C0hCSOAPo8Sny24gNpuApsSjuz3sIEUiAjsYJSavXcQK4jAL PGSU+Pl2P3MXIweHsECYxKXGKpAGFgFViWXbf4Jt4BWwlFjT/pcRwhaU+DH5HtgCZgEtifU7 jzNB2PISm9e8ZYa4SEFix9nXjCAjRQT0JI4/14UoEZHY9+Id4wRGgVlIJs1CMmkWkkmzkLQs YGRZxSiaWpBcUJyUnmuoV5yYW1yal66XnJ+7iRGcMJ5J7WBc2WBxiFGAg1GJh3cCW2KwEGti WXFl7iFGCQ5mJRHe4DVAId6UxMqq1KL8+KLSnNTiQ4zJQI9OZJYSTc4HJrO8knhDYxMzI0sj MwsjE3Nz0oSVxHkPtFoHCgmkJ5akZqemFqQWwWxh4uCUamBUnJSYHz5vp0jFxl/iBqdSBYTi OCXNju1wuhzD/PpY1WLeprjW4i3F97KkvzZvOcr+3/6PVdrkpeYtFlKJHxRuM87Jr9/58eLb 9n9xQc5uvFeOdE07rNe0wt9h59rQt+9cJruvCrbX0KnUNGxkfDrz8+mfT/YoZOWl1K08e2bu jsp3Jez7kvqVWIozEg21mIuKEwFNp7ppXAMAAA== 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 --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/