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=-6.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 AC466C433E2 for ; Wed, 9 Sep 2020 04:53:47 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 37FAF21D40 for ; Wed, 9 Sep 2020 04:53:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 37FAF21D40 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 757806B0071; Wed, 9 Sep 2020 00:53:46 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6E0356B0073; Wed, 9 Sep 2020 00:53:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5CE4F6B0074; Wed, 9 Sep 2020 00:53:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0095.hostedemail.com [216.40.44.95]) by kanga.kvack.org (Postfix) with ESMTP id 3617B6B0071 for ; Wed, 9 Sep 2020 00:53:46 -0400 (EDT) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id F29D31EE6 for ; Wed, 9 Sep 2020 04:53:45 +0000 (UTC) X-FDA: 77242305210.18.bikes85_620c890270da Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin18.hostedemail.com (Postfix) with ESMTP id C2F61100EC66B for ; Wed, 9 Sep 2020 04:53:45 +0000 (UTC) X-HE-Tag: bikes85_620c890270da X-Filterd-Recvd-Size: 2918 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf33.hostedemail.com (Postfix) with ESMTP for ; Wed, 9 Sep 2020 04:53:45 +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 3F38531B; Tue, 8 Sep 2020 21:53:44 -0700 (PDT) Received: from p8cg001049571a15.arm.com (unknown [10.163.71.250]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 599613F68F; Tue, 8 Sep 2020 21:53:40 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org Cc: will@kernel.org, catalin.marinas@arm.com, akpm@linux-foundation.org, rcampbell@nvidia.com, ziy@nvidia.com, Jonathan.Cameron@Huawei.com, Anshuman Khandual , Mark Rutland , Marc Zyngier , Suzuki Poulose , linux-kernel@vger.kernel.org Subject: [PATCH V2 0/2] arm64/mm: Enable THP migration Date: Wed, 9 Sep 2020 10:23:01 +0530 Message-Id: <1599627183-14453-1-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 X-Rspamd-Queue-Id: C2F61100EC66B 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 v5.9-rc4. Changes in V2: - Renamed clr_pmd_bit() as clear_pmd_bit() per Catalin - Updated in-code documentation per Catalin and Ralph - Updated commit message in the first patch per Catalin - Updated commit message in the second patch per Catalin - Added tags from Catalin Changes in V1: (https://patchwork.kernel.org/project/linux-mm/list/?series=333627) - 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