From patchwork Mon Apr 4 16:26:04 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suzuki K Poulose X-Patchwork-Id: 8742671 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 4808F9F39A for ; Mon, 4 Apr 2016 16:31:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 401432028D for ; Mon, 4 Apr 2016 16:31:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6B0262027D for ; Mon, 4 Apr 2016 16:31:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755895AbcDDQ0y (ORCPT ); Mon, 4 Apr 2016 12:26:54 -0400 Received: from foss.arm.com ([217.140.101.70]:46417 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932482AbcDDQ0w (ORCPT ); Mon, 4 Apr 2016 12:26:52 -0400 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 CC9FA494; Mon, 4 Apr 2016 09:25:41 -0700 (PDT) Received: from e106634-lin.cambridge.arm.com (e106634-lin.cambridge.arm.com [10.1.209.136]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 0825B3F459; Mon, 4 Apr 2016 09:26:49 -0700 (PDT) From: Suzuki K Poulose To: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, marc.zyngier@arm.com, christoffer.dall@linaro.org, mark.rutland@arm.com, will.deacon@arm.com, catalin.marinas@arm.com, Suzuki K Poulose , Steve Capper Subject: [PATCH 04/17] arm64: Introduce pmd_thp_or_huge Date: Mon, 4 Apr 2016 17:26:04 +0100 Message-Id: <1459787177-12767-5-git-send-email-suzuki.poulose@arm.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1459787177-12767-1-git-send-email-suzuki.poulose@arm.com> References: <1459787177-12767-1-git-send-email-suzuki.poulose@arm.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add a helper to determine if a given pmd represents a huge page either by hugetlb or thp, as we have for arm. This will be used by KVM MMU code. Suggested-by: Mark Rutland Cc: Catalin Marinas Cc: Steve Capper Cc: Will Deacon Signed-off-by: Suzuki K Poulose Acked-by: Christoffer Dall --- arch/arm64/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 989fef1..dda4aa9 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -290,6 +290,8 @@ static inline pgprot_t mk_sect_prot(pgprot_t prot) #define pmd_mkyoung(pmd) pte_pmd(pte_mkyoung(pmd_pte(pmd))) #define pmd_mknotpresent(pmd) (__pmd(pmd_val(pmd) & ~PMD_TYPE_MASK)) +#define pmd_thp_or_huge(pmd) (pmd_huge(pmd) || pmd_trans_huge(pmd)) + #define __HAVE_ARCH_PMD_WRITE #define pmd_write(pmd) pte_write(pmd_pte(pmd))