From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ot1-f71.google.com (mail-ot1-f71.google.com [209.85.210.71]) by kanga.kvack.org (Postfix) with ESMTP id 64CDE6B0266 for ; Fri, 12 Oct 2018 00:00:43 -0400 (EDT) Received: by mail-ot1-f71.google.com with SMTP id m91so2716409otc.17 for ; Thu, 11 Oct 2018 21:00:43 -0700 (PDT) Received: from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com. [217.140.101.70]) by mx.google.com with ESMTP id g60si6041631otg.312.2018.10.11.21.00.42 for ; Thu, 11 Oct 2018 21:00:42 -0700 (PDT) From: Anshuman Khandual Subject: [PATCH V2 4/5] arm64/mm: Enable HugeTLB migration Date: Fri, 12 Oct 2018 09:29:58 +0530 Message-Id: <1539316799-6064-5-git-send-email-anshuman.khandual@arm.com> In-Reply-To: <1539316799-6064-1-git-send-email-anshuman.khandual@arm.com> References: <1539316799-6064-1-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, punit.agrawal@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 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 1b1a0e9..e54350f 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1305,6 +1305,10 @@ 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