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 B11C0C4332F for ; Thu, 7 Apr 2022 23:27:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231331AbiDGX3F (ORCPT ); Thu, 7 Apr 2022 19:29:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58854 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231713AbiDGX24 (ORCPT ); Thu, 7 Apr 2022 19:28:56 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55EC9264C1A for ; Thu, 7 Apr 2022 16:26:52 -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 dfw.source.kernel.org (Postfix) with ESMTPS id DC15661365 for ; Thu, 7 Apr 2022 23:26:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 399E9C385A0; Thu, 7 Apr 2022 23:26:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1649374011; bh=fI0cPw4VNzwCZ70qSRBnuM+dsu5pBHtP2oR8T41Lxeg=; h=Date:To:From:Subject:From; b=1NIOU4/T7F6Fyr6d7YUkZk+3xMZLPiHP6TNuknAvSDcj8CxDL7aSqohiNzdUNPmdz Yzye5BCk8WQRWTxD8xYxbLII7TcVgslKI0c1BdTWZzxML37I2X35sEDmkvVLuh9id4 X/AeIBcTZJvATRCkz3IzUwon2AwTey5Uu3AB+kKw= Date: Thu, 07 Apr 2022 16:26:50 -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, 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: <20220407232651.399E9C385A0@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/20220407103251.1209606-5-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Reviewed-by: Khalid Aziz Cc: "David S. Miller" 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 --- arch/sparc/Kconfig | 1 + arch/sparc/include/asm/mman.h | 6 ------ arch/sparc/mm/init_64.c | 13 +++++++++++++ 3 files changed, 14 insertions(+), 6 deletions(-) --- 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 +3184,16 @@ void copy_highpage(struct page *to, stru } } EXPORT_SYMBOL(copy_highpage); + +static pgprot_t sparc_vm_get_page_prot(unsigned long vm_flags) +{ + return (vm_flags & VM_SPARC_ADI) ? __pgprot(_PAGE_MCD_4V) : __pgprot(0); +} + +pgprot_t vm_get_page_prot(unsigned long vm_flags) +{ + return __pgprot(pgprot_val(protection_map[vm_flags & + (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) | + pgprot_val(sparc_vm_get_page_prot(vm_flags))); +} +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