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 5CF6AC43334 for ; Sat, 2 Jul 2022 00:07:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230406AbiGBAHZ (ORCPT ); Fri, 1 Jul 2022 20:07:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33020 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231283AbiGBAHV (ORCPT ); Fri, 1 Jul 2022 20:07:21 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1FA9F4474F for ; Fri, 1 Jul 2022 17:07:19 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 878BCCE350F for ; Sat, 2 Jul 2022 00:07:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 943E1C341CB; Sat, 2 Jul 2022 00:07:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1656720435; bh=vYtZm7K8dsfVyzO20T3G3a3xCE5oqqP5C2ao6dxYZnA=; h=Date:To:From:Subject:From; b=JG2qlb142liP/RVvDu1R7r66zIsrdQyDq2JB5298GSI8m2hbDUA/eix/4PPmM4/bJ 3qfcEPA271GJ11j1mcC7hOp2oDbMtobiE8ikZy4uoB36CIcB78lHfc5YpfO0s7Mi0y m81nu+h8oIs1fSCcEa3ki3/0NGomCSIx4hzOflyQ= Date: Fri, 01 Jul 2022 17:07:15 -0700 To: mm-commits@vger.kernel.org, monstr@monstr.eu, anshuman.khandual@arm.com, akpm@linux-foundation.org From: Andrew Morton Subject: + microblaze-mm-enable-arch_has_vm_get_page_prot.patch added to mm-unstable branch Message-Id: <20220702000715.943E1C341CB@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: microblaze/mm: enable ARCH_HAS_VM_GET_PAGE_PROT has been added to the -mm mm-unstable branch. Its filename is microblaze-mm-enable-arch_has_vm_get_page_prot.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/microblaze-mm-enable-arch_has_vm_get_page_prot.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Anshuman Khandual Subject: microblaze/mm: enable ARCH_HAS_VM_GET_PAGE_PROT Date: Thu, 30 Jun 2022 10:46:12 +0530 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. Link: https://lkml.kernel.org/r/20220630051630.1718927-9-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Cc: Michal Simek Signed-off-by: Andrew Morton --- arch/microblaze/Kconfig | 1 + arch/microblaze/include/asm/pgtable.h | 17 ----------------- arch/microblaze/mm/init.c | 20 ++++++++++++++++++++ 3 files changed, 21 insertions(+), 17 deletions(-) --- a/arch/microblaze/include/asm/pgtable.h~microblaze-mm-enable-arch_has_vm_get_page_prot +++ a/arch/microblaze/include/asm/pgtable.h @@ -204,23 +204,6 @@ extern pte_t *va_to_pte(unsigned long ad * We consider execute permission the same as read. * Also, write permissions imply read permissions. */ -#define __P000 PAGE_NONE -#define __P001 PAGE_READONLY_X -#define __P010 PAGE_COPY -#define __P011 PAGE_COPY_X -#define __P100 PAGE_READONLY -#define __P101 PAGE_READONLY_X -#define __P110 PAGE_COPY -#define __P111 PAGE_COPY_X - -#define __S000 PAGE_NONE -#define __S001 PAGE_READONLY_X -#define __S010 PAGE_SHARED -#define __S011 PAGE_SHARED_X -#define __S100 PAGE_READONLY -#define __S101 PAGE_READONLY_X -#define __S110 PAGE_SHARED -#define __S111 PAGE_SHARED_X #ifndef __ASSEMBLY__ /* --- a/arch/microblaze/Kconfig~microblaze-mm-enable-arch_has_vm_get_page_prot +++ a/arch/microblaze/Kconfig @@ -7,6 +7,7 @@ config MICROBLAZE select ARCH_HAS_GCOV_PROFILE_ALL select ARCH_HAS_SYNC_DMA_FOR_CPU select ARCH_HAS_SYNC_DMA_FOR_DEVICE + select ARCH_HAS_VM_GET_PAGE_PROT select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_WANT_IPC_PARSE_VERSION select BUILDTIME_TABLE_SORT --- a/arch/microblaze/mm/init.c~microblaze-mm-enable-arch_has_vm_get_page_prot +++ a/arch/microblaze/mm/init.c @@ -285,3 +285,23 @@ void * __ref zalloc_maybe_bootmem(size_t return p; } + +static const pgprot_t protection_map[16] = { + [VM_NONE] = PAGE_NONE, + [VM_READ] = PAGE_READONLY_X, + [VM_WRITE] = PAGE_COPY, + [VM_WRITE | VM_READ] = PAGE_COPY_X, + [VM_EXEC] = PAGE_READONLY, + [VM_EXEC | VM_READ] = PAGE_READONLY_X, + [VM_EXEC | VM_WRITE] = PAGE_COPY, + [VM_EXEC | VM_WRITE | VM_READ] = PAGE_COPY_X, + [VM_SHARED] = PAGE_NONE, + [VM_SHARED | VM_READ] = PAGE_READONLY_X, + [VM_SHARED | VM_WRITE] = PAGE_SHARED, + [VM_SHARED | VM_WRITE | VM_READ] = PAGE_SHARED_X, + [VM_SHARED | VM_EXEC] = PAGE_READONLY, + [VM_SHARED | VM_EXEC | VM_READ] = PAGE_READONLY_X, + [VM_SHARED | VM_EXEC | VM_WRITE] = PAGE_SHARED, + [VM_SHARED | VM_EXEC | VM_WRITE | VM_READ] = PAGE_SHARED_X +}; +DECLARE_VM_GET_PAGE_PROT _ Patches currently in -mm which might be from anshuman.khandual@arm.com are mm-mmap-build-protect-protection_map-with-__p000.patch mm-mmap-define-declare_vm_get_page_prot.patch powerpc-mm-move-protection_map-inside-the-platform.patch sparc-mm-move-protection_map-inside-the-platform.patch arm64-mm-move-protection_map-inside-the-platform.patch x86-mm-move-protection_map-inside-the-platform.patch mm-mmap-build-protect-protection_map-with-arch_has_vm_get_page_prot.patch microblaze-mm-enable-arch_has_vm_get_page_prot.patch loongarch-mm-enable-arch_has_vm_get_page_prot.patch openrisc-mm-enable-arch_has_vm_get_page_prot.patch xtensa-mm-enable-arch_has_vm_get_page_prot.patch hexagon-mm-enable-arch_has_vm_get_page_prot.patch parisc-mm-enable-arch_has_vm_get_page_prot.patch alpha-mm-enable-arch_has_vm_get_page_prot.patch nios2-mm-enable-arch_has_vm_get_page_prot.patch riscv-mm-enable-arch_has_vm_get_page_prot.patch csky-mm-enable-arch_has_vm_get_page_prot.patch s390-mm-enable-arch_has_vm_get_page_prot.patch ia64-mm-enable-arch_has_vm_get_page_prot.patch mips-mm-enable-arch_has_vm_get_page_prot.patch m68k-mm-enable-arch_has_vm_get_page_prot.patch arc-mm-enable-arch_has_vm_get_page_prot.patch arm-mm-enable-arch_has_vm_get_page_prot.patch um-mm-enable-arch_has_vm_get_page_prot.patch sh-mm-enable-arch_has_vm_get_page_prot.patch mm-mmap-drop-arch_has_vm_get_page_prot.patch