From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753195AbbIPTD4 (ORCPT ); Wed, 16 Sep 2015 15:03:56 -0400 Received: from eu-smtp-delivery-143.mimecast.com ([146.101.78.143]:41371 "EHLO eu-smtp-delivery-143.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752809AbbIPTDr (ORCPT ); Wed, 16 Sep 2015 15:03:47 -0400 From: Jeremy Linton To: linux-arm-kernel@lists.infradead.org Cc: catalin.marinas@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, dwoods@ezcip.com, steve.capper@arm.com, shijie.huang@arm.com, Jeremy Linton Subject: [PATCH 4/7] arm64: Macros to check/set/unset the contiguous bit Date: Wed, 16 Sep 2015 14:03:03 -0500 Message-Id: <1442430186-9083-5-git-send-email-jeremy.linton@arm.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1442430186-9083-1-git-send-email-jeremy.linton@arm.com> References: <1442430186-9083-1-git-send-email-jeremy.linton@arm.com> X-OriginalArrivalTime: 16 Sep 2015 19:03:43.0790 (UTC) FILETIME=[68445CE0:01D0F0B2] X-MC-Unique: Cp6jyyRuQzqFequ8LkMydA-5 Content-Type: text/plain; charset=WINDOWS-1252 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by mail.home.local id t8GJ4Xer004295 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 6900b2d9..d43e1d1 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -144,6 +144,7 @@ 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_val(pte) & PTE_RDONLY)) @@ -206,6 +207,16 @@ 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; -- 2.4.3