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=unavailable 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 D090EC4360F for ; Wed, 27 Feb 2019 17:07:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A921B20C01 for ; Wed, 27 Feb 2019 17:07:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730317AbfB0RHX (ORCPT ); Wed, 27 Feb 2019 12:07:23 -0500 Received: from foss.arm.com ([217.140.101.70]:36216 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730296AbfB0RHW (ORCPT ); Wed, 27 Feb 2019 12:07:22 -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 9F2011684; Wed, 27 Feb 2019 09:07:21 -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 CAC793F738; Wed, 27 Feb 2019 09:07:17 -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" , Jonas Bonn , Stefan Kristiansson , Stafford Horne , openrisc@lists.librecores.org Subject: [PATCH v3 14/34] openrisc: mm: Add p?d_large() definitions Date: Wed, 27 Feb 2019 17:05:48 +0000 Message-Id: <20190227170608.27963-15-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 openrisc, we don't support large pages, so add a stub returning 0. CC: Jonas Bonn CC: Stefan Kristiansson CC: Stafford Horne CC: openrisc@lists.librecores.org Signed-off-by: Steven Price --- arch/openrisc/include/asm/pgtable.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/openrisc/include/asm/pgtable.h b/arch/openrisc/include/asm/pgtable.h index 21c71303012f..5a375104ef71 100644 --- a/arch/openrisc/include/asm/pgtable.h +++ b/arch/openrisc/include/asm/pgtable.h @@ -228,6 +228,7 @@ extern unsigned long empty_zero_page[2048]; #define pmd_none(x) (!pmd_val(x)) #define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK)) != _KERNPG_TABLE) #define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT) +#define pmd_large(x) (0) #define pmd_clear(xp) do { pmd_val(*(xp)) = 0; } while (0) /* -- 2.20.1