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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 169EFC433E0 for ; Mon, 6 Jul 2020 02:58:33 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D5D7920737 for ; Mon, 6 Jul 2020 02:58:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="uINLcS+j" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D5D7920737 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Owner; bh=hKTE+vUFlVPMHt0L3++B6ws9nEYLuq1XdOlYKv+/YCA=; b=uINLcS+jXzgLOIKAbmpCv1VkHu SlNoZJAg1YTyMlYcbtiBANJDGECFldnZi++US+RFCDhuBoZXK9CSoQg3dIZi38osV81RRu0Xvxgsk 1LUmvk+urIST9bD3JVO/EtvZSuwCeaalC7wIF4R8G6r3QH63o+dRxlSqRbGgWEEmTta0m+GjJ6YUT BObIcs258ftVfl2dQLePg+c3jcnil/O+T6ThrRnEn0z5ACdJkoPrVOz2bAomeHNMHM+gU/HcJXRKf xdVhIDS61jJ7qyqv4J1OgMTitqH2nKkKVrXjttpPi013VFjiXAij+dIQ68l+xZE9k52xREGKaU4I/ soTtWQ8w==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jsHJV-0008Cf-Qt; Mon, 06 Jul 2020 02:57:01 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jsHJR-0008Bm-Pe; Mon, 06 Jul 2020 02:56:59 +0000 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 20CF130E; Sun, 5 Jul 2020 19:56:51 -0700 (PDT) Received: from p8cg001049571a15.arm.com (unknown [10.163.84.195]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id EF89F3F71E; Sun, 5 Jul 2020 19:56:41 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org Subject: [PATCH V4 0/3] arm64: Enable vmemmap mapping from device memory Date: Mon, 6 Jul 2020 08:26:15 +0530 Message-Id: <1594004178-8861-1-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200705_225657_947638_DCD4393C X-CRM114-Status: GOOD ( 14.30 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Michal Hocko , linux-ia64@vger.kernel.org, David Hildenbrand , Peter Zijlstra , catalin.marinas@arm.com, Dave Hansen , Paul Mackerras , linux-riscv@lists.infradead.org, Will Deacon , Thomas Gleixner , justin.he@arm.com, Michael Ellerman , x86@kernel.org, "Matthew Wilcox \(Oracle\)" , Mike Rapoport , Ingo Molnar , Benjamin Herrenschmidt , Fenghua Yu , Pavel Tatashin , Anshuman Khandual , Andy Lutomirski , Paul Walmsley , Dan Williams , linux-arm-kernel@lists.infradead.org, Tony Luck , linux-kernel@vger.kernel.org, Palmer Dabbelt , akpm@linux-foundation.org, linuxppc-dev@lists.ozlabs.org, "Kirill A. Shutemov" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This series enables vmemmap backing memory allocation from device memory ranges on arm64. But before that, it enables vmemmap_populate_basepages() and vmemmap_alloc_block_buf() to accommodate struct vmem_altmap based alocation requests. This series applies on 5.8-rc4. Changes in V4: - Dropped 'fallback' from vmemmap_alloc_block_buf() per Catalin Changes in V3: (https://patchwork.kernel.org/project/linux-mm/list/?series=304707) - Dropped comment from free_hotplug_page_range() per Robin - Modified comment in unmap_hotplug_range() per Robin - Enabled altmap support in vmemmap_alloc_block_buf() per Robin Changes in V2: (https://lkml.org/lkml/2020/3/4/475) - Rebased on latest hot-remove series (v14) adding P4D page table support Changes in V1: (https://lkml.org/lkml/2020/1/23/12) - Added an WARN_ON() in unmap_hotplug_range() when altmap is provided without the page table backing memory being freed Changes in RFC V2: (https://lkml.org/lkml/2019/10/21/11) - 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: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: linux-arm-kernel@lists.infradead.org Cc: linux-ia64@vger.kernel.org Cc: linux-riscv@lists.infradead.org Cc: x86@kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org Anshuman Khandual (3): mm/sparsemem: Enable vmem_altmap support in vmemmap_populate_basepages() mm/sparsemem: Enable vmem_altmap support in vmemmap_alloc_block_buf() arm64/mm: Enable vmem_altmap support for vmemmap mappings Documentation/vm/memory-model.rst | 2 +- arch/arm64/mm/mmu.c | 58 ++++++++++++++++++++----------- arch/ia64/mm/discontig.c | 2 +- arch/powerpc/mm/init_64.c | 4 +-- arch/riscv/mm/init.c | 2 +- arch/x86/mm/init_64.c | 11 +++--- include/linux/mm.h | 9 ++--- mm/sparse-vmemmap.c | 36 ++++++++++--------- 8 files changed, 72 insertions(+), 52 deletions(-) -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel