From nobody Mon Dec 15 11:23:47 2025 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 A94C7EB64DD for ; Thu, 13 Jul 2023 09:20:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234198AbjGMJUX (ORCPT ); Thu, 13 Jul 2023 05:20:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47362 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232776AbjGMJUV (ORCPT ); Thu, 13 Jul 2023 05:20:21 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id F22E7B4 for ; Thu, 13 Jul 2023 02:20:19 -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 3F1851570; Thu, 13 Jul 2023 02:21:02 -0700 (PDT) Received: from a077893.arm.com (unknown [10.163.49.144]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 14E5E3F740; Thu, 13 Jul 2023 02:20:16 -0700 (PDT) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Cc: david@redhat.com, Anshuman Khandual , Catalin Marinas , Will Deacon , Mark Rutland , linux-kernel@vger.kernel.org Subject: [PATCH] arm64/mm: Add pte_rdonly() helper Date: Thu, 13 Jul 2023 14:50:04 +0530 Message-Id: <20230713092004.693749-1-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" This replaces open coding PTE_RDONLY check with a new helper pte_rdonly(). No functional change is intended here. Cc: Catalin Marinas Cc: Will Deacon Cc: Mark Rutland Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual Acked-by: Catalin Marinas Reviewed-by: David Hildenbrand --- This applies on v6.5-rc1 arch/arm64/include/asm/pgtable.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgta= ble.h index 171d6d7f8087..72c2e8431360 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -103,6 +103,7 @@ static inline pteval_t __phys_to_pte_val(phys_addr_t ph= ys) #define pte_young(pte) (!!(pte_val(pte) & PTE_AF)) #define pte_special(pte) (!!(pte_val(pte) & PTE_SPECIAL)) #define pte_write(pte) (!!(pte_val(pte) & PTE_WRITE)) +#define pte_rdonly(pte) (!!(pte_val(pte) & PTE_RDONLY)) #define pte_user(pte) (!!(pte_val(pte) & PTE_USER)) #define pte_user_exec(pte) (!(pte_val(pte) & PTE_UXN)) #define pte_cont(pte) (!!(pte_val(pte) & PTE_CONT)) @@ -120,7 +121,7 @@ static inline pteval_t __phys_to_pte_val(phys_addr_t ph= ys) (__boundary - 1 < (end) - 1) ? __boundary : (end); \ }) =20 -#define pte_hw_dirty(pte) (pte_write(pte) && !(pte_val(pte) & PTE_RDONLY)) +#define pte_hw_dirty(pte) (pte_write(pte) && !pte_rdonly(pte)) #define pte_sw_dirty(pte) (!!(pte_val(pte) & PTE_DIRTY)) #define pte_dirty(pte) (pte_sw_dirty(pte) || pte_hw_dirty(pte)) =20 --=20 2.30.2