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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5D74ACA9EA1 for ; Fri, 18 Oct 2019 10:16:02 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 292732064B for ; Fri, 18 Oct 2019 10:16:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="TLW2/mo4" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 292732064B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=OkuZic3oH+RQXx7zPDnIe1+xHY7acWmu0a0Q5eTEEEg=; b=TLW2/mo4KbPUby y9vhIZxmu1wOnuJNGpYgphm7xNtKp48fiGhqDBu9Mm1Og0Rw8YssZTABqO/3R6BxOghjAM+1KyjiF 0pHbL0PfNqMX/fecvnrxfBepOnX8R+qSgKdCjBVUxT/juOOrUaaoFuDH1Mp2Sh5Nc7XXK04NzbhO/ 7D6T0DVTDZ272HM7ijqPhe/5+ynl8pRzAvf/SZe6spSZvTtcNgkP2hHKCJjG63JZTbJBVzVd+vXPB hOfwVm709GlIoDbdTo8rRcVyUxmFbGW0DVbNS960SBdzEgvNLOzf1O8XxFEoG1YCZ5zD3Sz6A2HXr yeyxh2q6Ia9xHOmfBHPw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iLPIV-0003NS-Vy; Fri, 18 Oct 2019 10:15:51 +0000 Received: from [217.140.110.172] (helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iLPFx-0000Cw-Ck for linux-arm-kernel@lists.infradead.org; Fri, 18 Oct 2019 10:13:14 +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 9932A4AC; Fri, 18 Oct 2019 03:13:09 -0700 (PDT) Received: from e112269-lin.cambridge.arm.com (e112269-lin.cambridge.arm.com [10.1.194.43]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E4B3C3F6C4; Fri, 18 Oct 2019 03:13:06 -0700 (PDT) From: Steven Price To: linux-mm@kvack.org Subject: [PATCH v12 03/22] arm: mm: Add p?d_leaf() definitions Date: Fri, 18 Oct 2019 11:12:29 +0100 Message-Id: <20191018101248.33727-4-steven.price@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191018101248.33727-1-steven.price@arm.com> References: <20191018101248.33727-1-steven.price@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191018_031313_473461_0A6FA8A5 X-CRM114-Status: GOOD ( 11.87 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Russell King , x86@kernel.org, Arnd Bergmann , Ard Biesheuvel , Peter Zijlstra , Catalin Marinas , Dave Hansen , linux-kernel@vger.kernel.org, Steven Price , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , Ingo Molnar , Borislav Petkov , Andy Lutomirski , "H. Peter Anvin" , James Morse , Thomas Gleixner , Will Deacon , Andrew Morton , linux-arm-kernel@lists.infradead.org, "Liang, Kan" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org walk_page_range() is going to be allowed to walk page tables other than those of user space. For this it needs to know when it has reached a 'leaf' entry in the page tables. This information is provided by the p?d_leaf() functions/macros. For arm pmd_large() already exists and does what we want. So simply provide the generic pmd_leaf() name. CC: Russell King CC: linux-arm-kernel@lists.infradead.org Signed-off-by: Steven Price --- arch/arm/include/asm/pgtable-2level.h | 1 + arch/arm/include/asm/pgtable-3level.h | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h index 51beec41d48c..0d3ea35c97fe 100644 --- a/arch/arm/include/asm/pgtable-2level.h +++ b/arch/arm/include/asm/pgtable-2level.h @@ -189,6 +189,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr) } #define pmd_large(pmd) (pmd_val(pmd) & 2) +#define pmd_leaf(pmd) (pmd_val(pmd) & 2) #define pmd_bad(pmd) (pmd_val(pmd) & 2) #define pmd_present(pmd) (pmd_val(pmd)) diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h index 5b18295021a0..ad55ab068dbf 100644 --- a/arch/arm/include/asm/pgtable-3level.h +++ b/arch/arm/include/asm/pgtable-3level.h @@ -134,6 +134,7 @@ #define pmd_sect(pmd) ((pmd_val(pmd) & PMD_TYPE_MASK) == \ PMD_TYPE_SECT) #define pmd_large(pmd) pmd_sect(pmd) +#define pmd_leaf(pmd) pmd_sect(pmd) #define pud_clear(pudp) \ do { \ -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel