From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DF453C433E1 for ; Mon, 15 Jun 2020 13:15:33 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id ABF782071A for ; Mon, 15 Jun 2020 13:15:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ABF782071A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 2B5596B0008; Mon, 15 Jun 2020 09:15:33 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 294016B000A; Mon, 15 Jun 2020 09:15:33 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1C75D6B000E; Mon, 15 Jun 2020 09:15:33 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0181.hostedemail.com [216.40.44.181]) by kanga.kvack.org (Postfix) with ESMTP id 01E786B0008 for ; Mon, 15 Jun 2020 09:15:32 -0400 (EDT) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 8536C3C4BC for ; Mon, 15 Jun 2020 13:15:32 +0000 (UTC) X-FDA: 76931492904.02.point54_4804e2526df6 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin02.hostedemail.com (Postfix) with ESMTP id 17C54231B9 for ; Mon, 15 Jun 2020 13:15:32 +0000 (UTC) X-HE-Tag: point54_4804e2526df6 X-Filterd-Recvd-Size: 2331 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf16.hostedemail.com (Postfix) with ESMTP for ; Mon, 15 Jun 2020 13:15:31 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 8E09B31B; Mon, 15 Jun 2020 06:15:30 -0700 (PDT) Received: from p8cg001049571a15.arm.com (unknown [10.163.79.186]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id F22E73F6CF; Mon, 15 Jun 2020 06:15:26 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org Cc: catalin.marinas@arm.com, will@kernel.org, mark.rutland@arm.com, ziy@nvidia.com, Anshuman Khandual , Marc Zyngier , Suzuki Poulose , linux-kernel@vger.kernel.org Subject: [RFC V2 0/2] arm64/mm: Enable THP migration Date: Mon, 15 Jun 2020 18:45:16 +0530 Message-Id: <1592226918-26378-1-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 X-Rspamd-Queue-Id: 17C54231B9 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This series enables THP migration on arm64 via ARCH_ENABLE_THP_MIGRATION. But first this modifies all existing THP helpers like pmd_present() and pmd_trans_huge() etc per expected generic memory semantics as concluded from a previous discussion here. https://lkml.org/lkml/2018/10/9/220 This series is based on v5.8-rc1. Changes in RFC V2: - Used PMD_TABLE_BIT to represent splitting PMD state per Catalin Changes in RFC V1: (https://patchwork.kernel.org/project/linux-mm/list/?series=138797) Cc: Catalin Marinas Cc: Will Deacon Cc: Mark Rutland Cc: Marc Zyngier Cc: Suzuki Poulose Cc: Zi Yan Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Anshuman Khandual (2): arm64/mm: Change THP helpers per generic memory semantics arm64/mm: Enable THP migration arch/arm64/Kconfig | 4 ++ arch/arm64/include/asm/pgtable.h | 102 +++++++++++++++++++++++++++---- arch/arm64/mm/hugetlbpage.c | 2 +- arch/arm64/mm/mmu.c | 20 ++++++ 4 files changed, 116 insertions(+), 12 deletions(-) -- 2.20.1