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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33122CCA486 for ; Mon, 27 Jun 2022 05:00:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229985AbiF0FAu (ORCPT ); Mon, 27 Jun 2022 01:00:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39706 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232277AbiF0FAd (ORCPT ); Mon, 27 Jun 2022 01:00:33 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 389832BF1; Sun, 26 Jun 2022 22:00:30 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 305591650; Sun, 26 Jun 2022 22:00:30 -0700 (PDT) Received: from a077893.blr.arm.com (unknown [10.162.42.6]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 5C9AF3F5A1; Sun, 26 Jun 2022 22:00:22 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org Cc: hch@infradead.org, christophe.leroy@csgroup.eu, Anshuman Khandual , Andrew Morton , linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, x86@kernel.org, openrisc@lists.librecores.org, linux-xtensa@linux-xtensa.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-parisc@vger.kernel.org, linux-alpha@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-um@lists.infradead.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, Brian Cain Subject: [PATCH V5 12/26] hexagon/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT Date: Mon, 27 Jun 2022 10:28:19 +0530 Message-Id: <20220627045833.1590055-13-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220627045833.1590055-1-anshuman.khandual@arm.com> References: <20220627045833.1590055-1-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org This enables ARCH_HAS_VM_GET_PAGE_PROT on the platform and exports standard vm_get_page_prot() implementation via DECLARE_VM_GET_PAGE_PROT, which looks up a private and static protection_map[] array. Subsequently all __SXXX and __PXXX macros can be dropped which are no longer needed. Cc: Brian Cain Cc: linux-hexagon@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/hexagon/Kconfig | 1 + arch/hexagon/include/asm/pgtable.h | 27 ------------------- arch/hexagon/mm/init.c | 42 ++++++++++++++++++++++++++++++ 3 files changed, 43 insertions(+), 27 deletions(-) diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 54eadf265178..bc4ceecd0588 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -6,6 +6,7 @@ config HEXAGON def_bool y select ARCH_32BIT_OFF_T select ARCH_HAS_SYNC_DMA_FOR_DEVICE + select ARCH_HAS_VM_GET_PAGE_PROT select ARCH_NO_PREEMPT select DMA_GLOBAL_POOL # Other pending projects/to-do items. diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h index 0610724d6a28..f7048c18b6f9 100644 --- a/arch/hexagon/include/asm/pgtable.h +++ b/arch/hexagon/include/asm/pgtable.h @@ -126,33 +126,6 @@ extern unsigned long _dflt_cache_att; */ #define CACHEDEF (CACHE_DEFAULT << 6) -/* Private (copy-on-write) page protections. */ -#define __P000 __pgprot(_PAGE_PRESENT | _PAGE_USER | CACHEDEF) -#define __P001 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | CACHEDEF) -#define __P010 __P000 /* Write-only copy-on-write */ -#define __P011 __P001 /* Read/Write copy-on-write */ -#define __P100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __P101 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_EXECUTE | \ - _PAGE_READ | CACHEDEF) -#define __P110 __P100 /* Write/execute copy-on-write */ -#define __P111 __P101 /* Read/Write/Execute, copy-on-write */ - -/* Shared page protections. */ -#define __S000 __P000 -#define __S001 __P001 -#define __S010 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_WRITE | CACHEDEF) -#define __S011 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_WRITE | CACHEDEF) -#define __S100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __S101 __P101 -#define __S110 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) -#define __S111 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) - extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* located in head.S */ /* HUGETLB not working currently */ diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c index 3167a3b5c97b..146115c9de61 100644 --- a/arch/hexagon/mm/init.c +++ b/arch/hexagon/mm/init.c @@ -234,3 +234,45 @@ void __init setup_arch_memory(void) * which is called by start_kernel() later on in the process */ } + +static const pgprot_t protection_map[16] = { + [VM_NONE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_SHARED | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_SHARED | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_WRITE | CACHEDEF), + [VM_SHARED | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_SHARED | VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_EXECUTE | + _PAGE_WRITE | CACHEDEF) +}; +DECLARE_VM_GET_PAGE_PROT -- 2.25.1 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 Received: from mail.librecores.org (lists.librecores.org [88.198.125.70]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75453C433EF for ; Mon, 27 Jun 2022 05:00:33 +0000 (UTC) Received: from [172.31.1.100] (localhost.localdomain [127.0.0.1]) by mail.librecores.org (Postfix) with ESMTP id 98AC7249D7; Mon, 27 Jun 2022 07:00:32 +0200 (CEST) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mail.librecores.org (Postfix) with ESMTP id 9E307249D7 for ; Mon, 27 Jun 2022 07:00:30 +0200 (CEST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 305591650; Sun, 26 Jun 2022 22:00:30 -0700 (PDT) Received: from a077893.blr.arm.com (unknown [10.162.42.6]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 5C9AF3F5A1; Sun, 26 Jun 2022 22:00:22 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org Subject: [PATCH V5 12/26] hexagon/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT Date: Mon, 27 Jun 2022 10:28:19 +0530 Message-Id: <20220627045833.1590055-13-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220627045833.1590055-1-anshuman.khandual@arm.com> References: <20220627045833.1590055-1-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: openrisc@lists.librecores.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Discussion around the OpenRISC processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, Brian Cain , linux-hexagon@vger.kernel.org, x86@kernel.org, christophe.leroy@csgroup.eu, hch@infradead.org, linux-snps-arc@lists.infradead.org, linux-xtensa@linux-xtensa.org, Anshuman Khandual , linux-um@lists.infradead.org, linux-m68k@lists.linux-m68k.org, openrisc@lists.librecores.org, linux-arm-kernel@lists.infradead.org, linux-parisc@vger.kernel.org, linux-mips@vger.kernel.org, linux-alpha@vger.kernel.org, Andrew Morton , linuxppc-dev@lists.ozlabs.org Errors-To: openrisc-bounces@lists.librecores.org Sender: "OpenRISC" This enables ARCH_HAS_VM_GET_PAGE_PROT on the platform and exports standard vm_get_page_prot() implementation via DECLARE_VM_GET_PAGE_PROT, which looks up a private and static protection_map[] array. Subsequently all __SXXX and __PXXX macros can be dropped which are no longer needed. Cc: Brian Cain Cc: linux-hexagon@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/hexagon/Kconfig | 1 + arch/hexagon/include/asm/pgtable.h | 27 ------------------- arch/hexagon/mm/init.c | 42 ++++++++++++++++++++++++++++++ 3 files changed, 43 insertions(+), 27 deletions(-) diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 54eadf265178..bc4ceecd0588 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -6,6 +6,7 @@ config HEXAGON def_bool y select ARCH_32BIT_OFF_T select ARCH_HAS_SYNC_DMA_FOR_DEVICE + select ARCH_HAS_VM_GET_PAGE_PROT select ARCH_NO_PREEMPT select DMA_GLOBAL_POOL # Other pending projects/to-do items. diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h index 0610724d6a28..f7048c18b6f9 100644 --- a/arch/hexagon/include/asm/pgtable.h +++ b/arch/hexagon/include/asm/pgtable.h @@ -126,33 +126,6 @@ extern unsigned long _dflt_cache_att; */ #define CACHEDEF (CACHE_DEFAULT << 6) -/* Private (copy-on-write) page protections. */ -#define __P000 __pgprot(_PAGE_PRESENT | _PAGE_USER | CACHEDEF) -#define __P001 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | CACHEDEF) -#define __P010 __P000 /* Write-only copy-on-write */ -#define __P011 __P001 /* Read/Write copy-on-write */ -#define __P100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __P101 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_EXECUTE | \ - _PAGE_READ | CACHEDEF) -#define __P110 __P100 /* Write/execute copy-on-write */ -#define __P111 __P101 /* Read/Write/Execute, copy-on-write */ - -/* Shared page protections. */ -#define __S000 __P000 -#define __S001 __P001 -#define __S010 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_WRITE | CACHEDEF) -#define __S011 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_WRITE | CACHEDEF) -#define __S100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __S101 __P101 -#define __S110 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) -#define __S111 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) - extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* located in head.S */ /* HUGETLB not working currently */ diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c index 3167a3b5c97b..146115c9de61 100644 --- a/arch/hexagon/mm/init.c +++ b/arch/hexagon/mm/init.c @@ -234,3 +234,45 @@ void __init setup_arch_memory(void) * which is called by start_kernel() later on in the process */ } + +static const pgprot_t protection_map[16] = { + [VM_NONE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_SHARED | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_SHARED | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_WRITE | CACHEDEF), + [VM_SHARED | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_SHARED | VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_EXECUTE | + _PAGE_WRITE | CACHEDEF) +}; +DECLARE_VM_GET_PAGE_PROT -- 2.25.1 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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0CEF8CCA483 for ; Mon, 27 Jun 2022 05:05:04 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4LWbJG4YrZz3g3p for ; Mon, 27 Jun 2022 15:05:02 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=arm.com (client-ip=217.140.110.172; helo=foss.arm.com; envelope-from=anshuman.khandual@arm.com; receiver=) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lists.ozlabs.org (Postfix) with ESMTP id 4LWbCd3RR2z3dpk for ; Mon, 27 Jun 2022 15:01:00 +1000 (AEST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 305591650; Sun, 26 Jun 2022 22:00:30 -0700 (PDT) Received: from a077893.blr.arm.com (unknown [10.162.42.6]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 5C9AF3F5A1; Sun, 26 Jun 2022 22:00:22 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org Subject: [PATCH V5 12/26] hexagon/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT Date: Mon, 27 Jun 2022 10:28:19 +0530 Message-Id: <20220627045833.1590055-13-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220627045833.1590055-1-anshuman.khandual@arm.com> References: <20220627045833.1590055-1-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, Brian Cain , linux-hexagon@vger.kernel.org, x86@kernel.org, hch@infradead.org, linux-snps-arc@lists.infradead.org, linux-xtensa@linux-xtensa.org, Anshuman Khandual , linux-um@lists.infradead.org, linux-m68k@lists.linux-m68k.org, openrisc@lists.librecores.org, linux-arm-kernel@lists.infradead.org, linux-parisc@vger.kernel.org, linux-mips@vger.kernel.org, linux-alpha@vger.kernel.org, Andrew Morton , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" This enables ARCH_HAS_VM_GET_PAGE_PROT on the platform and exports standard vm_get_page_prot() implementation via DECLARE_VM_GET_PAGE_PROT, which looks up a private and static protection_map[] array. Subsequently all __SXXX and __PXXX macros can be dropped which are no longer needed. Cc: Brian Cain Cc: linux-hexagon@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/hexagon/Kconfig | 1 + arch/hexagon/include/asm/pgtable.h | 27 ------------------- arch/hexagon/mm/init.c | 42 ++++++++++++++++++++++++++++++ 3 files changed, 43 insertions(+), 27 deletions(-) diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 54eadf265178..bc4ceecd0588 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -6,6 +6,7 @@ config HEXAGON def_bool y select ARCH_32BIT_OFF_T select ARCH_HAS_SYNC_DMA_FOR_DEVICE + select ARCH_HAS_VM_GET_PAGE_PROT select ARCH_NO_PREEMPT select DMA_GLOBAL_POOL # Other pending projects/to-do items. diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h index 0610724d6a28..f7048c18b6f9 100644 --- a/arch/hexagon/include/asm/pgtable.h +++ b/arch/hexagon/include/asm/pgtable.h @@ -126,33 +126,6 @@ extern unsigned long _dflt_cache_att; */ #define CACHEDEF (CACHE_DEFAULT << 6) -/* Private (copy-on-write) page protections. */ -#define __P000 __pgprot(_PAGE_PRESENT | _PAGE_USER | CACHEDEF) -#define __P001 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | CACHEDEF) -#define __P010 __P000 /* Write-only copy-on-write */ -#define __P011 __P001 /* Read/Write copy-on-write */ -#define __P100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __P101 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_EXECUTE | \ - _PAGE_READ | CACHEDEF) -#define __P110 __P100 /* Write/execute copy-on-write */ -#define __P111 __P101 /* Read/Write/Execute, copy-on-write */ - -/* Shared page protections. */ -#define __S000 __P000 -#define __S001 __P001 -#define __S010 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_WRITE | CACHEDEF) -#define __S011 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_WRITE | CACHEDEF) -#define __S100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __S101 __P101 -#define __S110 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) -#define __S111 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) - extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* located in head.S */ /* HUGETLB not working currently */ diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c index 3167a3b5c97b..146115c9de61 100644 --- a/arch/hexagon/mm/init.c +++ b/arch/hexagon/mm/init.c @@ -234,3 +234,45 @@ void __init setup_arch_memory(void) * which is called by start_kernel() later on in the process */ } + +static const pgprot_t protection_map[16] = { + [VM_NONE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_SHARED | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_SHARED | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_WRITE | CACHEDEF), + [VM_SHARED | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_SHARED | VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_EXECUTE | + _PAGE_WRITE | CACHEDEF) +}; +DECLARE_VM_GET_PAGE_PROT -- 2.25.1 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9C272C43334 for ; Mon, 27 Jun 2022 05:08:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=2ymJyycbD5bY77U97l9mBhGLE+vJhca0c6UPPMcuxzs=; b=Rn/XA5T41YL6/R bkYiGtL1d7gIgjUgP4lMVvQjyoyoSgBUILg0MdXyj5fJ7dbSH9WvS3P6V3bFQExKG6J9Nn7itkvIk ALbfsKtCfLrTz25IuBgWYYUJy1dT+crcFKOETPUvBLTDQ4FexCgXokSL07ld/PvblDgEf6LEZR+W/ cmpCMCpb2nZVir0vZMdzDSBGjx44cYtNGKLGMq3FlgLAj1oSetchWylEAfqs9FmlwP0NiXohtipxS cjVGZ0NQ+EBy8GMGTbi0i5nShQT0o3IVup8HwPjIjNKhtkAKYNHs63OMJoPnUDghzTLA1F3oAYrDE BUByrtHCS5WAjeryzxVQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o5gye-00FZEX-0M; Mon, 27 Jun 2022 05:08:00 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o5grP-00FTwb-6w; Mon, 27 Jun 2022 05:00:33 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 305591650; Sun, 26 Jun 2022 22:00:30 -0700 (PDT) Received: from a077893.blr.arm.com (unknown [10.162.42.6]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 5C9AF3F5A1; Sun, 26 Jun 2022 22:00:22 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org Cc: hch@infradead.org, christophe.leroy@csgroup.eu, Anshuman Khandual , Andrew Morton , linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, x86@kernel.org, openrisc@lists.librecores.org, linux-xtensa@linux-xtensa.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-parisc@vger.kernel.org, linux-alpha@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-um@lists.infradead.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, Brian Cain Subject: [PATCH V5 12/26] hexagon/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT Date: Mon, 27 Jun 2022 10:28:19 +0530 Message-Id: <20220627045833.1590055-13-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220627045833.1590055-1-anshuman.khandual@arm.com> References: <20220627045833.1590055-1-anshuman.khandual@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220626_220031_458200_B8693609 X-CRM114-Status: UNSURE ( 9.94 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org This enables ARCH_HAS_VM_GET_PAGE_PROT on the platform and exports standard vm_get_page_prot() implementation via DECLARE_VM_GET_PAGE_PROT, which looks up a private and static protection_map[] array. Subsequently all __SXXX and __PXXX macros can be dropped which are no longer needed. Cc: Brian Cain Cc: linux-hexagon@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/hexagon/Kconfig | 1 + arch/hexagon/include/asm/pgtable.h | 27 ------------------- arch/hexagon/mm/init.c | 42 ++++++++++++++++++++++++++++++ 3 files changed, 43 insertions(+), 27 deletions(-) diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 54eadf265178..bc4ceecd0588 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -6,6 +6,7 @@ config HEXAGON def_bool y select ARCH_32BIT_OFF_T select ARCH_HAS_SYNC_DMA_FOR_DEVICE + select ARCH_HAS_VM_GET_PAGE_PROT select ARCH_NO_PREEMPT select DMA_GLOBAL_POOL # Other pending projects/to-do items. diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h index 0610724d6a28..f7048c18b6f9 100644 --- a/arch/hexagon/include/asm/pgtable.h +++ b/arch/hexagon/include/asm/pgtable.h @@ -126,33 +126,6 @@ extern unsigned long _dflt_cache_att; */ #define CACHEDEF (CACHE_DEFAULT << 6) -/* Private (copy-on-write) page protections. */ -#define __P000 __pgprot(_PAGE_PRESENT | _PAGE_USER | CACHEDEF) -#define __P001 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | CACHEDEF) -#define __P010 __P000 /* Write-only copy-on-write */ -#define __P011 __P001 /* Read/Write copy-on-write */ -#define __P100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __P101 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_EXECUTE | \ - _PAGE_READ | CACHEDEF) -#define __P110 __P100 /* Write/execute copy-on-write */ -#define __P111 __P101 /* Read/Write/Execute, copy-on-write */ - -/* Shared page protections. */ -#define __S000 __P000 -#define __S001 __P001 -#define __S010 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_WRITE | CACHEDEF) -#define __S011 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_WRITE | CACHEDEF) -#define __S100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __S101 __P101 -#define __S110 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) -#define __S111 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) - extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* located in head.S */ /* HUGETLB not working currently */ diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c index 3167a3b5c97b..146115c9de61 100644 --- a/arch/hexagon/mm/init.c +++ b/arch/hexagon/mm/init.c @@ -234,3 +234,45 @@ void __init setup_arch_memory(void) * which is called by start_kernel() later on in the process */ } + +static const pgprot_t protection_map[16] = { + [VM_NONE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_SHARED | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_SHARED | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_WRITE | CACHEDEF), + [VM_SHARED | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_SHARED | VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_EXECUTE | + _PAGE_WRITE | CACHEDEF) +}; +DECLARE_VM_GET_PAGE_PROT -- 2.25.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 70C57C433EF for ; Mon, 27 Jun 2022 05:08:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Sun, 26 Jun 2022 22:00:22 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org Cc: hch@infradead.org, christophe.leroy@csgroup.eu, Anshuman Khandual , Andrew Morton , linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, x86@kernel.org, openrisc@lists.librecores.org, linux-xtensa@linux-xtensa.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-parisc@vger.kernel.org, linux-alpha@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-um@lists.infradead.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, Brian Cain Subject: [PATCH V5 12/26] hexagon/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT Date: Mon, 27 Jun 2022 10:28:19 +0530 Message-Id: <20220627045833.1590055-13-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220627045833.1590055-1-anshuman.khandual@arm.com> References: <20220627045833.1590055-1-anshuman.khandual@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220626_220031_458200_B8693609 X-CRM114-Status: UNSURE ( 9.94 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org This enables ARCH_HAS_VM_GET_PAGE_PROT on the platform and exports standard vm_get_page_prot() implementation via DECLARE_VM_GET_PAGE_PROT, which looks up a private and static protection_map[] array. Subsequently all __SXXX and __PXXX macros can be dropped which are no longer needed. Cc: Brian Cain Cc: linux-hexagon@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/hexagon/Kconfig | 1 + arch/hexagon/include/asm/pgtable.h | 27 ------------------- arch/hexagon/mm/init.c | 42 ++++++++++++++++++++++++++++++ 3 files changed, 43 insertions(+), 27 deletions(-) diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 54eadf265178..bc4ceecd0588 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -6,6 +6,7 @@ config HEXAGON def_bool y select ARCH_32BIT_OFF_T select ARCH_HAS_SYNC_DMA_FOR_DEVICE + select ARCH_HAS_VM_GET_PAGE_PROT select ARCH_NO_PREEMPT select DMA_GLOBAL_POOL # Other pending projects/to-do items. diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h index 0610724d6a28..f7048c18b6f9 100644 --- a/arch/hexagon/include/asm/pgtable.h +++ b/arch/hexagon/include/asm/pgtable.h @@ -126,33 +126,6 @@ extern unsigned long _dflt_cache_att; */ #define CACHEDEF (CACHE_DEFAULT << 6) -/* Private (copy-on-write) page protections. */ -#define __P000 __pgprot(_PAGE_PRESENT | _PAGE_USER | CACHEDEF) -#define __P001 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | CACHEDEF) -#define __P010 __P000 /* Write-only copy-on-write */ -#define __P011 __P001 /* Read/Write copy-on-write */ -#define __P100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __P101 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_EXECUTE | \ - _PAGE_READ | CACHEDEF) -#define __P110 __P100 /* Write/execute copy-on-write */ -#define __P111 __P101 /* Read/Write/Execute, copy-on-write */ - -/* Shared page protections. */ -#define __S000 __P000 -#define __S001 __P001 -#define __S010 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_WRITE | CACHEDEF) -#define __S011 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_WRITE | CACHEDEF) -#define __S100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __S101 __P101 -#define __S110 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) -#define __S111 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) - extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* located in head.S */ /* HUGETLB not working currently */ diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c index 3167a3b5c97b..146115c9de61 100644 --- a/arch/hexagon/mm/init.c +++ b/arch/hexagon/mm/init.c @@ -234,3 +234,45 @@ void __init setup_arch_memory(void) * which is called by start_kernel() later on in the process */ } + +static const pgprot_t protection_map[16] = { + [VM_NONE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_SHARED | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_SHARED | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_WRITE | CACHEDEF), + [VM_SHARED | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_SHARED | VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_EXECUTE | + _PAGE_WRITE | CACHEDEF) +}; +DECLARE_VM_GET_PAGE_PROT -- 2.25.1 _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 995DDC43334 for ; Mon, 27 Jun 2022 05:08:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Sun, 26 Jun 2022 22:00:22 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org Cc: hch@infradead.org, christophe.leroy@csgroup.eu, Anshuman Khandual , Andrew Morton , linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, x86@kernel.org, openrisc@lists.librecores.org, linux-xtensa@linux-xtensa.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-parisc@vger.kernel.org, linux-alpha@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-um@lists.infradead.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, Brian Cain Subject: [PATCH V5 12/26] hexagon/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT Date: Mon, 27 Jun 2022 10:28:19 +0530 Message-Id: <20220627045833.1590055-13-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220627045833.1590055-1-anshuman.khandual@arm.com> References: <20220627045833.1590055-1-anshuman.khandual@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220626_220031_458200_B8693609 X-CRM114-Status: UNSURE ( 9.94 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This enables ARCH_HAS_VM_GET_PAGE_PROT on the platform and exports standard vm_get_page_prot() implementation via DECLARE_VM_GET_PAGE_PROT, which looks up a private and static protection_map[] array. Subsequently all __SXXX and __PXXX macros can be dropped which are no longer needed. Cc: Brian Cain Cc: linux-hexagon@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/hexagon/Kconfig | 1 + arch/hexagon/include/asm/pgtable.h | 27 ------------------- arch/hexagon/mm/init.c | 42 ++++++++++++++++++++++++++++++ 3 files changed, 43 insertions(+), 27 deletions(-) diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 54eadf265178..bc4ceecd0588 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -6,6 +6,7 @@ config HEXAGON def_bool y select ARCH_32BIT_OFF_T select ARCH_HAS_SYNC_DMA_FOR_DEVICE + select ARCH_HAS_VM_GET_PAGE_PROT select ARCH_NO_PREEMPT select DMA_GLOBAL_POOL # Other pending projects/to-do items. diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h index 0610724d6a28..f7048c18b6f9 100644 --- a/arch/hexagon/include/asm/pgtable.h +++ b/arch/hexagon/include/asm/pgtable.h @@ -126,33 +126,6 @@ extern unsigned long _dflt_cache_att; */ #define CACHEDEF (CACHE_DEFAULT << 6) -/* Private (copy-on-write) page protections. */ -#define __P000 __pgprot(_PAGE_PRESENT | _PAGE_USER | CACHEDEF) -#define __P001 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | CACHEDEF) -#define __P010 __P000 /* Write-only copy-on-write */ -#define __P011 __P001 /* Read/Write copy-on-write */ -#define __P100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __P101 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_EXECUTE | \ - _PAGE_READ | CACHEDEF) -#define __P110 __P100 /* Write/execute copy-on-write */ -#define __P111 __P101 /* Read/Write/Execute, copy-on-write */ - -/* Shared page protections. */ -#define __S000 __P000 -#define __S001 __P001 -#define __S010 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_WRITE | CACHEDEF) -#define __S011 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_WRITE | CACHEDEF) -#define __S100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __S101 __P101 -#define __S110 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) -#define __S111 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) - extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* located in head.S */ /* HUGETLB not working currently */ diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c index 3167a3b5c97b..146115c9de61 100644 --- a/arch/hexagon/mm/init.c +++ b/arch/hexagon/mm/init.c @@ -234,3 +234,45 @@ void __init setup_arch_memory(void) * which is called by start_kernel() later on in the process */ } + +static const pgprot_t protection_map[16] = { + [VM_NONE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_SHARED | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_SHARED | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_WRITE | CACHEDEF), + [VM_SHARED | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_SHARED | VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_EXECUTE | + _PAGE_WRITE | CACHEDEF) +}; +DECLARE_VM_GET_PAGE_PROT -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anshuman Khandual Date: Mon, 27 Jun 2022 04:59:43 +0000 Subject: [PATCH V5 12/26] hexagon/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT Message-Id: <20220627045833.1590055-13-anshuman.khandual@arm.com> List-Id: References: <20220627045833.1590055-1-anshuman.khandual@arm.com> In-Reply-To: <20220627045833.1590055-1-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-mm@kvack.org Cc: hch@infradead.org, christophe.leroy@csgroup.eu, Anshuman Khandual , Andrew Morton , linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, x86@kernel.org, openrisc@lists.librecores.org, linux-xtensa@linux-xtensa.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-parisc@vger.kernel.org, linux-alpha@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-um@lists.infradead.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, Brian Cain This enables ARCH_HAS_VM_GET_PAGE_PROT on the platform and exports standard vm_get_page_prot() implementation via DECLARE_VM_GET_PAGE_PROT, which looks up a private and static protection_map[] array. Subsequently all __SXXX and __PXXX macros can be dropped which are no longer needed. Cc: Brian Cain Cc: linux-hexagon@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/hexagon/Kconfig | 1 + arch/hexagon/include/asm/pgtable.h | 27 ------------------- arch/hexagon/mm/init.c | 42 ++++++++++++++++++++++++++++++ 3 files changed, 43 insertions(+), 27 deletions(-) diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 54eadf265178..bc4ceecd0588 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -6,6 +6,7 @@ config HEXAGON def_bool y select ARCH_32BIT_OFF_T select ARCH_HAS_SYNC_DMA_FOR_DEVICE + select ARCH_HAS_VM_GET_PAGE_PROT select ARCH_NO_PREEMPT select DMA_GLOBAL_POOL # Other pending projects/to-do items. diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h index 0610724d6a28..f7048c18b6f9 100644 --- a/arch/hexagon/include/asm/pgtable.h +++ b/arch/hexagon/include/asm/pgtable.h @@ -126,33 +126,6 @@ extern unsigned long _dflt_cache_att; */ #define CACHEDEF (CACHE_DEFAULT << 6) -/* Private (copy-on-write) page protections. */ -#define __P000 __pgprot(_PAGE_PRESENT | _PAGE_USER | CACHEDEF) -#define __P001 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | CACHEDEF) -#define __P010 __P000 /* Write-only copy-on-write */ -#define __P011 __P001 /* Read/Write copy-on-write */ -#define __P100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __P101 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_EXECUTE | \ - _PAGE_READ | CACHEDEF) -#define __P110 __P100 /* Write/execute copy-on-write */ -#define __P111 __P101 /* Read/Write/Execute, copy-on-write */ - -/* Shared page protections. */ -#define __S000 __P000 -#define __S001 __P001 -#define __S010 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_WRITE | CACHEDEF) -#define __S011 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_WRITE | CACHEDEF) -#define __S100 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | CACHEDEF) -#define __S101 __P101 -#define __S110 __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) -#define __S111 __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | \ - _PAGE_EXECUTE | _PAGE_WRITE | CACHEDEF) - extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* located in head.S */ /* HUGETLB not working currently */ diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c index 3167a3b5c97b..146115c9de61 100644 --- a/arch/hexagon/mm/init.c +++ b/arch/hexagon/mm/init.c @@ -234,3 +234,45 @@ void __init setup_arch_memory(void) * which is called by start_kernel() later on in the process */ } + +static const pgprot_t protection_map[16] = { + [VM_NONE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + CACHEDEF), + [VM_SHARED | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | CACHEDEF), + [VM_SHARED | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_WRITE | CACHEDEF), + [VM_SHARED | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | CACHEDEF), + [VM_SHARED | VM_EXEC | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_READ | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_EXECUTE | _PAGE_WRITE | + CACHEDEF), + [VM_SHARED | VM_EXEC | VM_WRITE | VM_READ] = __pgprot(_PAGE_PRESENT | _PAGE_USER | + _PAGE_READ | _PAGE_EXECUTE | + _PAGE_WRITE | CACHEDEF) +}; +DECLARE_VM_GET_PAGE_PROT -- 2.25.1