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 E0B4DC433F5 for ; Wed, 13 Apr 2022 06:22:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232322AbiDMGY3 (ORCPT ); Wed, 13 Apr 2022 02:24:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60314 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231881AbiDMGY0 (ORCPT ); Wed, 13 Apr 2022 02:24:26 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 5E6714BFD1; Tue, 12 Apr 2022 23:22:06 -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 1BB61150C; Tue, 12 Apr 2022 23:22:06 -0700 (PDT) Received: from [10.163.39.141] (unknown [10.163.39.141]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A73273F70D; Tue, 12 Apr 2022 23:22:00 -0700 (PDT) Message-ID: Date: Wed, 13 Apr 2022 11:52:36 +0530 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH V6 4/7] sparc/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT Content-Language: en-US To: Christophe Leroy , "linux-mm@kvack.org" , "akpm@linux-foundation.org" , khalid.aziz@oracle.com Cc: "catalin.marinas@arm.com" , Christoph Hellwig , "linuxppc-dev@lists.ozlabs.org" , "linux-arm-kernel@lists.infradead.org" , "sparclinux@vger.kernel.org" , "linux-arch@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "David S. Miller" , Khalid Aziz References: <20220413055840.392628-1-anshuman.khandual@arm.com> <20220413055840.392628-5-anshuman.khandual@arm.com> From: Anshuman Khandual In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/13/22 11:43, Christophe Leroy wrote: > > > Le 13/04/2022 à 07:58, Anshuman Khandual a écrit : >> 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(). >> >> Cc: "David S. Miller" >> Cc: Khalid Aziz >> Cc: sparclinux@vger.kernel.org >> Cc: linux-kernel@vger.kernel.org >> Reviewed-by: Khalid Aziz >> Signed-off-by: Anshuman Khandual >> --- >> 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(-) >> >> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig >> index 9200bc04701c..85b573643af6 100644 >> --- a/arch/sparc/Kconfig >> +++ b/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 >> diff --git a/arch/sparc/include/asm/mman.h b/arch/sparc/include/asm/mman.h >> index 274217e7ed70..af9c10c83dc5 100644 >> --- a/arch/sparc/include/asm/mman.h >> +++ b/arch/sparc/include/asm/mman.h >> @@ -46,12 +46,6 @@ static inline unsigned long sparc_calc_vm_prot_bits(unsigned long prot) >> } >> } >> >> -#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) >> { >> diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c >> index 8b1911591581..dcb17763c1f2 100644 >> --- a/arch/sparc/mm/init_64.c >> +++ b/arch/sparc/mm/init_64.c >> @@ -3184,3 +3184,16 @@ void copy_highpage(struct page *to, struct page *from) >> } >> } >> 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); > > > sparc is now the only one with two functions. You can most likely do > like you did for ARM and POWERPC: merge into a single function: I was almost about to do this one as well but as this patch has already been reviewed with a tag, just skipped it. I will respin the series once more :) Khalid, Could I keep your review tag after the following change ? > > 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); - Anshuman 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 2CE76C433F5 for ; Wed, 13 Apr 2022 06:23:04 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4KdXZt494Xz3bZY for ; Wed, 13 Apr 2022 16:23:02 +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 4KdXZQ5lBPz2x9T for ; Wed, 13 Apr 2022 16:22:37 +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 1BB61150C; Tue, 12 Apr 2022 23:22:06 -0700 (PDT) Received: from [10.163.39.141] (unknown [10.163.39.141]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A73273F70D; Tue, 12 Apr 2022 23:22:00 -0700 (PDT) Message-ID: Date: Wed, 13 Apr 2022 11:52:36 +0530 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH V6 4/7] sparc/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT Content-Language: en-US To: Christophe Leroy , "linux-mm@kvack.org" , "akpm@linux-foundation.org" , khalid.aziz@oracle.com References: <20220413055840.392628-1-anshuman.khandual@arm.com> <20220413055840.392628-5-anshuman.khandual@arm.com> From: Anshuman Khandual In-Reply-To: Content-Type: text/plain; charset=UTF-8 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-arch@vger.kernel.org" , "catalin.marinas@arm.com" , "linux-kernel@vger.kernel.org" , Christoph Hellwig , Khalid Aziz , "sparclinux@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , "David S. Miller" , "linux-arm-kernel@lists.infradead.org" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 4/13/22 11:43, Christophe Leroy wrote: > > > Le 13/04/2022 à 07:58, Anshuman Khandual a écrit : >> 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(). >> >> Cc: "David S. Miller" >> Cc: Khalid Aziz >> Cc: sparclinux@vger.kernel.org >> Cc: linux-kernel@vger.kernel.org >> Reviewed-by: Khalid Aziz >> Signed-off-by: Anshuman Khandual >> --- >> 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(-) >> >> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig >> index 9200bc04701c..85b573643af6 100644 >> --- a/arch/sparc/Kconfig >> +++ b/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 >> diff --git a/arch/sparc/include/asm/mman.h b/arch/sparc/include/asm/mman.h >> index 274217e7ed70..af9c10c83dc5 100644 >> --- a/arch/sparc/include/asm/mman.h >> +++ b/arch/sparc/include/asm/mman.h >> @@ -46,12 +46,6 @@ static inline unsigned long sparc_calc_vm_prot_bits(unsigned long prot) >> } >> } >> >> -#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) >> { >> diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c >> index 8b1911591581..dcb17763c1f2 100644 >> --- a/arch/sparc/mm/init_64.c >> +++ b/arch/sparc/mm/init_64.c >> @@ -3184,3 +3184,16 @@ void copy_highpage(struct page *to, struct page *from) >> } >> } >> 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); > > > sparc is now the only one with two functions. You can most likely do > like you did for ARM and POWERPC: merge into a single function: I was almost about to do this one as well but as this patch has already been reviewed with a tag, just skipped it. I will respin the series once more :) Khalid, Could I keep your review tag after the following change ? > > 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); - Anshuman 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 B7FE6C433F5 for ; Wed, 13 Apr 2022 06:33:22 +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:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=whufrgHX9/pLw7LeubDQvy1/dx9KqTCloBX4EEeoOjs=; b=IHwd/TTfuDtJ9t obCdGRHFqSIbptoKFvFBmwumsmLR55sJzT98HyVSLkTsnmMTQgaZtoJePjNri3PLlib3BwLedImcy ooBSNJKJmW7HvGiW5Eu4Dl1HZ16Mf0z1PpYZZgbrS0Gtu/9g1dANuxkb//C3Pcw6gMwZm8Qh2CDcf 4u1t80KKIzt808BhAfPJo243stJrvq4jb+KUD444hdZgdXIjpyF8luo8JTBslgAzt/wFvnqEFNJDX OBmigutodVATZy5SUfFHvoEk2M4Idx4c8WnIf2uT6VbBuzhb9JCE40QfbKDY2AWu1mQrs2ba3W/IA ZHGhJ8diAKv8fW/njs2g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1neWXi-00HAIR-96; Wed, 13 Apr 2022 06:31:54 +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 1neWOF-00H6nv-Sj for linux-arm-kernel@lists.infradead.org; Wed, 13 Apr 2022 06:22:11 +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 1BB61150C; Tue, 12 Apr 2022 23:22:06 -0700 (PDT) Received: from [10.163.39.141] (unknown [10.163.39.141]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A73273F70D; Tue, 12 Apr 2022 23:22:00 -0700 (PDT) Message-ID: Date: Wed, 13 Apr 2022 11:52:36 +0530 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH V6 4/7] sparc/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT Content-Language: en-US To: Christophe Leroy , "linux-mm@kvack.org" , "akpm@linux-foundation.org" , khalid.aziz@oracle.com Cc: "catalin.marinas@arm.com" , Christoph Hellwig , "linuxppc-dev@lists.ozlabs.org" , "linux-arm-kernel@lists.infradead.org" , "sparclinux@vger.kernel.org" , "linux-arch@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "David S. Miller" , Khalid Aziz References: <20220413055840.392628-1-anshuman.khandual@arm.com> <20220413055840.392628-5-anshuman.khandual@arm.com> From: Anshuman Khandual In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220412_232208_086104_1EF2ACEC X-CRM114-Status: GOOD ( 17.20 ) 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="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org CgpPbiA0LzEzLzIyIDExOjQzLCBDaHJpc3RvcGhlIExlcm95IHdyb3RlOgo+IAo+IAo+IExlIDEz LzA0LzIwMjIgw6AgMDc6NTgsIEFuc2h1bWFuIEtoYW5kdWFsIGEgw6ljcml0wqA6Cj4+IFRoaXMg ZGVmaW5lcyBhbmQgZXhwb3J0cyBhIHBsYXRmb3JtIHNwZWNpZmljIGN1c3RvbSB2bV9nZXRfcGFn 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