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=-6.8 required=3.0 tests=BAYES_00, 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 5F8B7C433E1 for ; Mon, 17 Aug 2020 09:20:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 37D382072D for ; Mon, 17 Aug 2020 09:20:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728964AbgHQJUf (ORCPT ); Mon, 17 Aug 2020 05:20:35 -0400 Received: from foss.arm.com ([217.140.110.172]:51626 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728139AbgHQJUb (ORCPT ); Mon, 17 Aug 2020 05:20:31 -0400 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 C522E31B; Mon, 17 Aug 2020 02:20:30 -0700 (PDT) Received: from p8cg001049571a15.arm.com (unknown [10.163.65.199]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 88B433F6CF; Mon, 17 Aug 2020 02:20:27 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org Cc: catalin.marinas@arm.com, will@kernel.org, akpm@linux-foundation.org, Anshuman Khandual , Mark Rutland , Marc Zyngier , Suzuki Poulose , Zi Yan , linux-kernel@vger.kernel.org Subject: [PATCH 0/2] arm64/mm: Enable THP migration Date: Mon, 17 Aug 2020 14:49:42 +0530 Message-Id: <1597655984-15428-1-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 v5.9-rc1. Changes in V1: - Used new PMD_PRESENT_INVALID (bit 59) to represent invalidated PMD state per Catalin Changes in RFC V2: (https://patchwork.kernel.org/project/linux-mm/list/?series=302965) - 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 to comply with generic MM semantics arm64/mm: Enable THP migration arch/arm64/Kconfig | 4 +++ arch/arm64/include/asm/pgtable-prot.h | 7 +++++ arch/arm64/include/asm/pgtable.h | 39 ++++++++++++++++++++++++--- 3 files changed, 47 insertions(+), 3 deletions(-) -- 2.20.1