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=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 38984CA9ED1 for ; Fri, 1 Nov 2019 14:10:20 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 0A1F121D56 for ; Fri, 1 Nov 2019 14:10:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0A1F121D56 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id B0D446B0269; Fri, 1 Nov 2019 10:10:19 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id AE3CB6B026A; Fri, 1 Nov 2019 10:10:19 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9F9B16B026B; Fri, 1 Nov 2019 10:10:19 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0190.hostedemail.com [216.40.44.190]) by kanga.kvack.org (Postfix) with ESMTP id 8108E6B0269 for ; Fri, 1 Nov 2019 10:10:19 -0400 (EDT) Received: from smtpin26.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with SMTP id 17E52181AC1E9 for ; Fri, 1 Nov 2019 14:10:19 +0000 (UTC) X-FDA: 76107893358.26.chin67_3ceb48015d400 X-HE-Tag: chin67_3ceb48015d400 X-Filterd-Recvd-Size: 3396 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf39.hostedemail.com (Postfix) with ESMTP for ; Fri, 1 Nov 2019 14:10:18 +0000 (UTC) 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 C49D24F2; Fri, 1 Nov 2019 07:10:17 -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 C09BC3F718; Fri, 1 Nov 2019 07:10:14 -0700 (PDT) From: Steven Price To: Andrew Morton , linux-mm@kvack.org Cc: Steven Price , Andy Lutomirski , Ard Biesheuvel , Arnd Bergmann , Borislav Petkov , Catalin Marinas , Dave Hansen , Ingo Molnar , James Morse , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , Peter Zijlstra , Thomas Gleixner , Will Deacon , x86@kernel.org, "H. Peter Anvin" , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Mark Rutland , "Liang, Kan" , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , linux-s390@vger.kernel.org Subject: [PATCH v15 08/23] s390: mm: Add p?d_leaf() definitions Date: Fri, 1 Nov 2019 14:09:27 +0000 Message-Id: <20191101140942.51554-9-steven.price@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191101140942.51554-1-steven.price@arm.com> References: <20191101140942.51554-1-steven.price@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 s390, pud_large() and pmd_large() are already implemented as static inline functions. Add a macro to provide the p?d_leaf names for the generic code to use. CC: Heiko Carstens CC: Vasily Gorbik CC: Christian Borntraeger CC: linux-s390@vger.kernel.org Signed-off-by: Steven Price --- arch/s390/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgta= ble.h index 36c578c0ff96..acab5a455490 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -675,6 +675,7 @@ static inline int pud_none(pud_t pud) return pud_val(pud) =3D=3D _REGION3_ENTRY_EMPTY; } =20 +#define pud_leaf pud_large static inline int pud_large(pud_t pud) { if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) !=3D _REGION_ENTRY_TYPE_R3= ) @@ -692,6 +693,7 @@ static inline unsigned long pud_pfn(pud_t pud) return (pud_val(pud) & origin_mask) >> PAGE_SHIFT; } =20 +#define pmd_leaf pmd_large static inline int pmd_large(pmd_t pmd) { return (pmd_val(pmd) & _SEGMENT_ENTRY_LARGE) !=3D 0; --=20 2.20.1