From patchwork Wed Oct 7 17:00:21 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeremy Linton X-Patchwork-Id: 7346711 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D3D7FBEEA4 for ; Wed, 7 Oct 2015 17:04:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D645C20741 for ; Wed, 7 Oct 2015 17:04:29 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B7D0E20654 for ; Wed, 7 Oct 2015 17:04:28 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zjs5s-0006KB-4V; Wed, 07 Oct 2015 17:01:32 +0000 Received: from eu-smtp-delivery-143.mimecast.com ([146.101.78.143]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zjs5T-00061x-RU for linux-arm-kernel@lists.infradead.org; Wed, 07 Oct 2015 17:01:09 +0000 Received: from cam-owa2.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.140]) by eu-smtp-1.mimecast.com with ESMTP id uk-mta-9-fJwqUl2CTymuNjevWx9Omg-1; Wed, 07 Oct 2015 18:00:48 +0100 Received: from mammon-v1.localdomain.localdomain ([10.1.2.79]) by cam-owa2.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 7 Oct 2015 18:00:48 +0100 From: Jeremy Linton To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 3/7] arm64: Macros to check/set/unset the contiguous bit Date: Wed, 7 Oct 2015 12:00:21 -0500 Message-Id: <1444237225-13802-4-git-send-email-jeremy.linton@arm.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1444237225-13802-1-git-send-email-jeremy.linton@arm.com> References: <1444237225-13802-1-git-send-email-jeremy.linton@arm.com> X-OriginalArrivalTime: 07 Oct 2015 17:00:48.0505 (UTC) FILETIME=[B6EDEE90:01D10121] X-MC-Unique: fJwqUl2CTymuNjevWx9Omg-1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151007_100108_260655_8B1B448A X-CRM114-Status: UNSURE ( 7.90 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -5.2 (-----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: steve.capper@linaro.org, catalin.marinas@arm.com, will.deacon@arm.com, Jeremy Linton , dwoods@ezchip.com, shijie.huang@arm.com, dennis.chen@arm.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_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 the supporting macros to check if the contiguous bit is set, set the bit, or clear it in a PTE entry. Signed-off-by: Jeremy Linton --- arch/arm64/include/asm/pgtable.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 26b0666..cc19ec1 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -140,6 +140,7 @@ extern struct page *empty_zero_page; #define pte_special(pte) (!!(pte_val(pte) & PTE_SPECIAL)) #define pte_write(pte) (!!(pte_val(pte) & PTE_WRITE)) #define pte_exec(pte) (!(pte_val(pte) & PTE_UXN)) +#define pte_cont(pte) (!!(pte_val(pte) & PTE_CONT)) #ifdef CONFIG_ARM64_HW_AFDBM #define pte_hw_dirty(pte) (pte_write(pte) && !(pte_val(pte) & PTE_RDONLY)) @@ -202,6 +203,16 @@ static inline pte_t pte_mkspecial(pte_t pte) return set_pte_bit(pte, __pgprot(PTE_SPECIAL)); } +static inline pte_t pte_mkcont(pte_t pte) +{ + return set_pte_bit(pte, __pgprot(PTE_CONT)); +} + +static inline pte_t pte_mknoncont(pte_t pte) +{ + return clear_pte_bit(pte, __pgprot(PTE_CONT)); +} + static inline void set_pte(pte_t *ptep, pte_t pte) { *ptep = pte;