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=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 4C4C8C00319 for ; Wed, 27 Feb 2019 17:06:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2663C20C01 for ; Wed, 27 Feb 2019 17:06:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729364AbfB0RGd (ORCPT ); Wed, 27 Feb 2019 12:06:33 -0500 Received: from foss.arm.com ([217.140.101.70]:35762 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725854AbfB0RGc (ORCPT ); Wed, 27 Feb 2019 12:06:32 -0500 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 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" , linux-alpha@vger.kernel.org, Richard Henderson , Ivan Kokshaysky , Matt Turner 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 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.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