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,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 3BCC4CA9EB7 for ; Mon, 21 Oct 2019 05:10:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1C74B20700 for ; Mon, 21 Oct 2019 05:10:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726991AbfJUFKd (ORCPT ); Mon, 21 Oct 2019 01:10:33 -0400 Received: from [217.140.110.172] ([217.140.110.172]:42022 "EHLO foss.arm.com" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1725897AbfJUFKd (ORCPT ); Mon, 21 Oct 2019 01:10:33 -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 C779936D; Sun, 20 Oct 2019 22:09:59 -0700 (PDT) Received: from p8cg001049571a15.arm.com (unknown [10.163.1.2]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id AA6ED3F71F; Sun, 20 Oct 2019 22:12:38 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org Cc: Anshuman Khandual , Catalin Marinas , Will Deacon , Mark Rutland , Paul Walmsley , Palmer Dabbelt , Tony Luck , Fenghua Yu , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , David Hildenbrand , Mike Rapoport , Michal Hocko , "Matthew Wilcox (Oracle)" , "Kirill A. Shutemov" , Andrew Morton , Dan Williams , Pavel Tatashin , linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-riscv@lists.infradead.org, x86@kernel.org, linux-kernel@vger.kernel.org Subject: [RFC V2 0/2] arm64: Enable vmemmap mapping from device memory Date: Mon, 21 Oct 2019 10:40:14 +0530 Message-Id: <1571634616-28863-1-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 vmemmap backing memory allocation from device memory ranges on arm64. But before that, it enables vmemmap_populate_basepages() to accommodate struct vmem_altmap based requests. This applies alongside arm64 memory hot remove (v10) on next-20191018. https://lkml.org/lkml/2019/10/11/232 Changes in RFC V2: - Changed the commit message on 1/2 patch per Will - Changed the commit message on 2/2 patch as well - Rebased on arm64 memory hot remove series (v10) RFC V1: (https://lkml.org/lkml/2019/6/28/32) Cc: Catalin Marinas Cc: Will Deacon Cc: Mark Rutland Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Tony Luck Cc: Fenghua Yu Cc: Dave Hansen Cc: Andy Lutomirski Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: David Hildenbrand Cc: Mike Rapoport Cc: Michal Hocko Cc: "Matthew Wilcox (Oracle)" Cc: "Kirill A. Shutemov" Cc: Andrew Morton Cc: Dan Williams Cc: Pavel Tatashin Cc: linux-arm-kernel@lists.infradead.org Cc: linux-ia64@vger.kernel.org Cc: linux-riscv@lists.infradead.org Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org Anshuman Khandual (2): mm/sparsemem: Enable vmem_altmap support in vmemmap_populate_basepages() arm64/mm: Enable vmem_altmap support for vmemmap mappings arch/arm64/mm/mmu.c | 58 +++++++++++++++++++++++++++------------- arch/ia64/mm/discontig.c | 2 +- arch/riscv/mm/init.c | 2 +- arch/x86/mm/init_64.c | 6 ++--- include/linux/mm.h | 5 ++-- mm/sparse-vmemmap.c | 16 +++++++---- 6 files changed, 59 insertions(+), 30 deletions(-) -- 2.20.1