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,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 DE095C43381 for ; Wed, 27 Feb 2019 17:07:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B7E5020C01 for ; Wed, 27 Feb 2019 17:07:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730339AbfB0RH1 (ORCPT ); Wed, 27 Feb 2019 12:07:27 -0500 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:36252 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730296AbfB0RH0 (ORCPT ); Wed, 27 Feb 2019 12:07:26 -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 8FFCD1688; Wed, 27 Feb 2019 09:07:25 -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 DEAE63F738; Wed, 27 Feb 2019 09:07:21 -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" , "James E.J. Bottomley" , Helge Deller , linux-parisc@vger.kernel.org Subject: [PATCH v3 15/34] parisc: mm: Add p?d_large() definitions Date: Wed, 27 Feb 2019 17:05:49 +0000 Message-Id: <20190227170608.27963-16-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 is provided by the p?d_large() functions/macros. For parisc, we don't support large pages, so add stubs returning 0. CC: "James E.J. Bottomley" CC: Helge Deller CC: linux-parisc@vger.kernel.org Signed-off-by: Steven Price --- arch/parisc/include/asm/pgtable.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index c7bb74e22436..1f38c85a9530 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -302,6 +302,7 @@ extern unsigned long *empty_zero_page; #endif #define pmd_bad(x) (!(pmd_flag(x) & PxD_FLAG_VALID)) #define pmd_present(x) (pmd_flag(x) & PxD_FLAG_PRESENT) +#define pmd_large(x) (0) static inline void pmd_clear(pmd_t *pmd) { #if CONFIG_PGTABLE_LEVELS == 3 if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED) @@ -324,6 +325,7 @@ static inline void pmd_clear(pmd_t *pmd) { #define pgd_none(x) (!pgd_val(x)) #define pgd_bad(x) (!(pgd_flag(x) & PxD_FLAG_VALID)) #define pgd_present(x) (pgd_flag(x) & PxD_FLAG_PRESENT) +#define pgd_large(x) (0) static inline void pgd_clear(pgd_t *pgd) { #if CONFIG_PGTABLE_LEVELS == 3 if(pgd_flag(*pgd) & PxD_FLAG_ATTACHED) @@ -342,6 +344,7 @@ static inline void pgd_clear(pgd_t *pgd) { static inline int pgd_none(pgd_t pgd) { return 0; } static inline int pgd_bad(pgd_t pgd) { return 0; } static inline int pgd_present(pgd_t pgd) { return 1; } +static inline int pgd_large(pgd_t pgd) { return 0; } static inline void pgd_clear(pgd_t * pgdp) { } #endif -- 2.20.1