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,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 D898BC43381 for ; Wed, 27 Feb 2019 17:06:56 +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 A670620842 for ; Wed, 27 Feb 2019 17:06:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="NZKxZMhj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A670620842 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=ZZyUg/BW2vTZwRdjjL3JIWQ09FRnCZx7W+j78YXJ73Y=; b=NZKxZMhjCqDE09 H6jEHKOz/P0P0hJVJU/WTScCuNTq9yHy58CJ4hgD15TycEOq3AcKE9E9545H3ikzdhpnbB+ON7IWq /zZbFCLnSz33VA5KM9yQvddIz5likUaYSxaf2+/EjoTiLRRAJOkr+09ImGpVTwCLoBlE5bBlbdoFC YMh+M/GNhksVP7cKvz2XPXgKpMmfaNowoMMX1bbbVvGIYMgVb/InOtOE9kqjB+1d4CMrSMLCR90Uk Yni5W+ld3iBXfuSQy0syWETnzYOtUxdv16tuZxjSqsP8YqQDHlBnTYDVoFJE5XiQyA7dqnBY1OCuK 5g9gC2q9VRj/Y2Re4E1w==; 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 1gz2fW-0007wO-5M; Wed, 27 Feb 2019 17:06:54 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gz2fA-0007X0-GK for linux-arm-kernel@lists.infradead.org; Wed, 27 Feb 2019 17:06:36 +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 2E2BD1684; Wed, 27 Feb 2019 09:06:32 -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 5A1D23F738; Wed, 27 Feb 2019 09:06:28 -0800 (PST) From: Steven Price To: linux-mm@kvack.org Subject: [PATCH v3 01/34] alpha: mm: Add p?d_large() definitions Date: Wed, 27 Feb 2019 17:05:35 +0000 Message-Id: <20190227170608.27963-2-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_090632_682659_0C781D10 X-CRM114-Status: GOOD ( 12.19 ) 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" , x86@kernel.org, Steven Price , Ingo Molnar , Matt Turner , Arnd Bergmann , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , Ivan Kokshaysky , Andy Lutomirski , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Richard Henderson , Ard Biesheuvel , linux-kernel@vger.kernel.org, James Morse , linux-alpha@vger.kernel.org, Borislav Petkov 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 will be provided by the p?d_large() functions/macros. For alpha, we don't support huge pages, so add stubs returning 0. CC: linux-alpha@vger.kernel.org CC: Richard Henderson CC: Ivan Kokshaysky CC: Matt Turner Signed-off-by: Steven Price --- arch/alpha/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h index 89c2032f9960..e5726d3a3200 100644 --- a/arch/alpha/include/asm/pgtable.h +++ b/arch/alpha/include/asm/pgtable.h @@ -254,11 +254,13 @@ extern inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *pt extern inline int pmd_none(pmd_t pmd) { return !pmd_val(pmd); } extern inline int pmd_bad(pmd_t pmd) { return (pmd_val(pmd) & ~_PFN_MASK) != _PAGE_TABLE; } extern inline int pmd_present(pmd_t pmd) { return pmd_val(pmd) & _PAGE_VALID; } +extern inline int pmd_large(pmd_t pmd) { return 0; } extern inline void pmd_clear(pmd_t * pmdp) { pmd_val(*pmdp) = 0; } extern inline int pgd_none(pgd_t pgd) { return !pgd_val(pgd); } extern inline int pgd_bad(pgd_t pgd) { return (pgd_val(pgd) & ~_PFN_MASK) != _PAGE_TABLE; } extern inline int pgd_present(pgd_t pgd) { return pgd_val(pgd) & _PAGE_VALID; } +extern inline int pgd_large(pgd_t pgd) { return 0; } extern inline void pgd_clear(pgd_t * pgdp) { pgd_val(*pgdp) = 0; } /* -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel