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=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,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 5CA23C43381 for ; Wed, 27 Feb 2019 17:24:02 +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 2BDAD20643 for ; Wed, 27 Feb 2019 17:24:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Yfl/2WHY"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="PxzhgVxh" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2BDAD20643 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=bftuxv8aTx923nQthCuMqaYr5FIpZDyZow7CPgRKUUk=; b=Yfl/2WHY/R0pLi BRyXZejVJbbsH4KjHd7bzTlGbz2VW6nKwPUcOSCLkYyl4iuv0SbLCmfI8kyRIbLO13pi90iv5erS0 vvEnq7UxtmYHbFNG7L1b3zzvbK2AjIPByF+FRQNfJEHm3IvbwPxHXZiQ+GykNDoKto3s8js/i8w8n E8/XeRp3iQkshtQHkN10/DgrXqXrc/ekEnZIegtaUXuw9dvnUQq7q4eYAAjPAIkyNygrcruvbFVQH RFa5bHtiVu9GkVzbS9pAgo1S/XJADqhh2j/a2LYqIXwimaMxiHM7PK5SAaHmLKNioOrJuBVl3lDzA OXUhCRXqD56Ntch8E8mQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gz2w2-0003GB-Jx; Wed, 27 Feb 2019 17:23:58 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gz2vt-0002mD-5h for linux-arm-kernel@bombadil.infradead.org; Wed, 27 Feb 2019 17:23:49 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=J3FIuviiMVREZMZELIXYHVD1g1qTn0XuyTtmAQTk6Hc=; b=PxzhgVxh243Yc5z07v0AhuJNoS xRV+aeori1rU00sId2ayfrTJUuLwlKAKZa7SH5/LuqPXhiW4BzNLTUlZ7xtJWgzi9IRgD1OqgS2XD RX5lLfdwy8iWynmft3bZ1YjQnLcMqvoL3J/jQUehQ2HBd4sdJU9eIjkXYDUFkon+JRQtK9WEIwFzL piIVyjQ7hqGAsJOI8pqwmRbrt6Dd/u1e7UqD4VY4xEwuCTM9/EOd1Xezr4GpAPpdHlCY4/yV4CpWX 0ja9wZaegUn7JOO2+QgwSpNg5IjBWDd79kY5BZljQniIIR1ebrATUf/0YpDyDgLLAqxCDtj5BV8T+ 2Kexl9hQ==; Received: from foss.arm.com ([217.140.101.70]) by casper.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gz2gE-0000Vh-DV for linux-arm-kernel@lists.infradead.org; Wed, 27 Feb 2019 17:07:40 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id AE15D1684; Wed, 27 Feb 2019 09:07:37 -0800 (PST) Received: from e112269-lin.arm.com (e112269-lin.cambridge.arm.com [10.1.196.69]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 056103F738; Wed, 27 Feb 2019 09:07:33 -0800 (PST) From: Steven Price To: linux-mm@kvack.org Subject: [PATCH v3 18/34] s390: mm: Add p?d_large() definitions Date: Wed, 27 Feb 2019 17:05:52 +0000 Message-Id: <20190227170608.27963-19-steven.price@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190227170608.27963-1-steven.price@arm.com> References: <20190227170608.27963-1-steven.price@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190227_170738_655903_E0ACE6B0 X-CRM114-Status: GOOD ( 11.21 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Peter Zijlstra , Catalin Marinas , Dave Hansen , Will Deacon , "H. Peter Anvin" , "Liang, Kan" , linux-s390@vger.kernel.org, x86@kernel.org, Steven Price , Ingo Molnar , Arnd Bergmann , Heiko Carstens , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , Borislav Petkov , Andy Lutomirski , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Ard Biesheuvel , linux-kernel@vger.kernel.org, James Morse , Martin Schwidefsky 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_large() functions/macros. For s390, we don't support large pages, so add a stub returning 0. CC: Martin Schwidefsky CC: Heiko Carstens CC: linux-s390@vger.kernel.org Signed-off-by: Steven Price --- arch/s390/include/asm/pgtable.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 063732414dfb..9617f1fb69b4 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -605,6 +605,11 @@ static inline int pgd_present(pgd_t pgd) return (pgd_val(pgd) & _REGION_ENTRY_ORIGIN) != 0UL; } +static inline int pgd_large(pgd_t pgd) +{ + return 0; +} + static inline int pgd_none(pgd_t pgd) { if (pgd_folded(pgd)) @@ -645,6 +650,11 @@ static inline int p4d_present(p4d_t p4d) return (p4d_val(p4d) & _REGION_ENTRY_ORIGIN) != 0UL; } +static inline int p4d_large(p4d_t p4d) +{ + return 0; +} + static inline int p4d_none(p4d_t p4d) { if (p4d_folded(p4d)) -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel