From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi1-f200.google.com (mail-oi1-f200.google.com [209.85.167.200]) by kanga.kvack.org (Postfix) with ESMTP id 4BE818E0001 for ; Tue, 18 Dec 2018 03:24:22 -0500 (EST) Received: by mail-oi1-f200.google.com with SMTP id w128so932163oie.20 for ; Tue, 18 Dec 2018 00:24:22 -0800 (PST) Received: from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com. [217.140.101.70]) by mx.google.com with ESMTP id h1si6875386oti.258.2018.12.18.00.24.21 for ; Tue, 18 Dec 2018 00:24:21 -0800 (PST) From: Anshuman Khandual Subject: [RESEND PATCH V3 4/5] arm64/mm: Enable HugeTLB migration Date: Tue, 18 Dec 2018 13:54:09 +0530 Message-Id: <1545121450-1663-5-git-send-email-anshuman.khandual@arm.com> In-Reply-To: <1545121450-1663-1-git-send-email-anshuman.khandual@arm.com> References: <1545121450-1663-1-git-send-email-anshuman.khandual@arm.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: suzuki.poulose@arm.com, will.deacon@arm.com, Steven.Price@arm.com, steve.capper@arm.com, catalin.marinas@arm.com, mhocko@kernel.org, akpm@linux-foundation.org, mike.kravetz@oracle.com, n-horiguchi@ah.jp.nec.com Let arm64 subscribe to generic HugeTLB page migration framework. Right now this only works on the following PMD and PUD level HugeTLB page sizes with various kernel base page size combinations. CONT PTE PMD CONT PMD PUD -------- --- -------- --- 4K: NA 2M NA 1G 16K: NA 32M NA 64K: NA 512M NA Reviewed-by: Naoya Horiguchi Reviewed-by: Steve Capper Acked-by: Catalin Marinas Signed-off-by: Anshuman Khandual --- arch/arm64/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index ea2ab03..57d0c4bf 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1359,6 +1359,10 @@ config SYSVIPC_COMPAT def_bool y depends on COMPAT && SYSVIPC +config ARCH_ENABLE_HUGEPAGE_MIGRATION + def_bool y + depends on HUGETLB_PAGE && MIGRATION + menu "Power management options" source "kernel/power/Kconfig" -- 2.7.4