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 E5A67C433EF for ; Thu, 14 Apr 2022 21:10:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346852AbiDNVMz (ORCPT ); Thu, 14 Apr 2022 17:12:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36376 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346828AbiDNVMk (ORCPT ); Thu, 14 Apr 2022 17:12:40 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7EAC0CEE26 for ; Thu, 14 Apr 2022 14:10:13 -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 ams.source.kernel.org (Postfix) with ESMTPS id 325B8B82762 for ; Thu, 14 Apr 2022 21:10:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DA29DC385A1; Thu, 14 Apr 2022 21:10:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1649970611; bh=dctO9w7og//waRphxrnDJpwgU/rxMTtwVsH17TuPTt8=; h=Date:To:From:Subject:From; b=Gd7ju2YCWnzbAzObdeNftNkmyysSMx7vB7w/KpcVYJ9XqYfSPmsl83waK0QoF2iOM rknQK+m7wsBWWYxsUAeZKm30azVINNifo0YoDr0+dGmjD6VgYCS12wXQwV2KMA5ADP wheRu3+hoJdj3MKTtikG4D7rPH2Omp6HZzrjscX8= Date: Thu, 14 Apr 2022 14:10:10 -0700 To: mm-commits@vger.kernel.org, will@kernel.org, tglx@linutronix.de, paulus@samba.org, mpe@ellerman.id.au, mingo@redhat.com, khalid.aziz@oracle.com, hch@infradead.org, davem@davemloft.net, christophe.leroy@csgroup.eu, catalin.marinas@arm.com, anshuman.khandual@arm.com, akpm@linux-foundation.org From: Andrew Morton Subject: + sparc-mm-enable-arch_has_vm_get_page_prot.patch added to -mm tree Message-Id: <20220414211010.DA29DC385A1@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: sparc/mm: enable ARCH_HAS_VM_GET_PAGE_PROT has been added to the -mm tree. Its filename is sparc-mm-enable-arch_has_vm_get_page_prot.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/sparc-mm-enable-arch_has_vm_get_page_prot.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/sparc-mm-enable-arch_has_vm_get_page_prot.patch 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 and is updated there every 3-4 working days ------------------------------------------------------ From: Anshuman Khandual Subject: sparc/mm: enable ARCH_HAS_VM_GET_PAGE_PROT This defines and exports a platform specific custom vm_get_page_prot() via subscribing ARCH_HAS_VM_GET_PAGE_PROT. It localizes arch_vm_get_page_prot() as sparc_vm_get_page_prot() and moves near vm_get_page_prot(). Link: https://lkml.kernel.org/r/20220414062125.609297-5-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Acked-by: David S. Miller Reviewed-by: Khalid Aziz Reviewed-by: Christophe Leroy Cc: Khalid Aziz Cc: Catalin Marinas Cc: Christoph Hellwig Cc: Ingo Molnar Cc: Michael Ellerman Cc: Paul Mackerras Cc: Thomas Gleixner Cc: Will Deacon Signed-off-by: Andrew Morton --- --- a/arch/sparc/include/asm/mman.h~sparc-mm-enable-arch_has_vm_get_page_prot +++ a/arch/sparc/include/asm/mman.h @@ -46,12 +46,6 @@ static inline unsigned long sparc_calc_v } } -#define arch_vm_get_page_prot(vm_flags) sparc_vm_get_page_prot(vm_flags) -static inline pgprot_t sparc_vm_get_page_prot(unsigned long vm_flags) -{ - return (vm_flags & VM_SPARC_ADI) ? __pgprot(_PAGE_MCD_4V) : __pgprot(0); -} - #define arch_validate_prot(prot, addr) sparc_validate_prot(prot, addr) static inline int sparc_validate_prot(unsigned long prot, unsigned long addr) { --- a/arch/sparc/Kconfig~sparc-mm-enable-arch_has_vm_get_page_prot +++ a/arch/sparc/Kconfig @@ -84,6 +84,7 @@ config SPARC64 select PERF_USE_VMALLOC select ARCH_HAVE_NMI_SAFE_CMPXCHG select HAVE_C_RECORDMCOUNT + select ARCH_HAS_VM_GET_PAGE_PROT select HAVE_ARCH_AUDITSYSCALL select ARCH_SUPPORTS_ATOMIC_RMW select ARCH_SUPPORTS_DEBUG_PAGEALLOC --- a/arch/sparc/mm/init_64.c~sparc-mm-enable-arch_has_vm_get_page_prot +++ a/arch/sparc/mm/init_64.c @@ -3184,3 +3184,15 @@ void copy_highpage(struct page *to, stru } } EXPORT_SYMBOL(copy_highpage); + +pgprot_t vm_get_page_prot(unsigned long vm_flags) +{ + unsigned long prot = pgprot_val(protection_map[vm_flags & + (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]); + + if (vm_flags & VM_SPARC_ADI) + prot |= _PAGE_MCD_4V; + + return __pgprot(prot); +} +EXPORT_SYMBOL(vm_get_page_prot); _ Patches currently in -mm which might be from anshuman.khandual@arm.com are mm-debug_vm_pgtable-drop-protection_map-usage.patch mm-mmap-clarify-protection_map-indices.patch mm-mmap-add-new-config-arch_has_vm_get_page_prot.patch powerpc-mm-enable-arch_has_vm_get_page_prot.patch arm64-mm-enable-arch_has_vm_get_page_prot.patch sparc-mm-enable-arch_has_vm_get_page_prot.patch mm-mmap-drop-arch_filter_pgprot.patch mm-mmap-drop-arch_vm_get_page_pgprot.patch