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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 162A4C3DA64 for ; Tue, 23 Jul 2024 06:43:05 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=RJhNstXj; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4WSndz5GpJz3cW8 for ; Tue, 23 Jul 2024 16:43:03 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=RJhNstXj; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=139.178.84.217; helo=dfw.source.kernel.org; envelope-from=rppt@kernel.org; receiver=lists.ozlabs.org) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4WSnd76tPvz30T8 for ; Tue, 23 Jul 2024 16:42:19 +1000 (AEST) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 65E8760B89; Tue, 23 Jul 2024 06:42:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 06589C4AF0B; Tue, 23 Jul 2024 06:42:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1721716937; bh=kClsaodBCvsJ+OpWo0SvlYVKVW681tzmFQcaGnY0oe0=; h=From:To:Cc:Subject:Date:From; b=RJhNstXjyeErh8almzQWDcVec+nPCxdrDaPLjMXrZ1wfgN+p+xMkq+Z2flxT67llB uc/c4HxmWMPBHNUO+6ahMcmt5W+n0WlsVglZcY5IvNNFQu7ypuakv8uc8IriFywgdg x1RhMP169bh8Gqo+f5hFY41at8mycpcf9CWJnwEedQYl2fIFUMkcSXigbqKWlgNPYL gyRbdB+et87yqzHXzKC+HNgsHBV5tTxpNd9VwiyB7Nl5BwzeH5pVg+5xNzV+HjZi5D +iZFJrwpyLXCzg+mlZUEGgRf2J6fe2GSQ6lnI0upcC/Nk3wKusFqJ0/RM0Y0GUsbXY 5JwJi+f3DixvA== From: Mike Rapoport To: linux-kernel@vger.kernel.org Subject: [PATCH v2 00/25] mm: introduce numa_memblks Date: Tue, 23 Jul 2024 09:41:31 +0300 Message-ID: <20240723064156.4009477-1-rppt@kernel.org> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: nvdimm@lists.linux.dev, x86@kernel.org, Andreas Larsson , Catalin Marinas , Dave Hansen , David Hildenbrand , Jiaxun Yang , linux-mm@kvack.org, sparclinux@vger.kernel.org, Alexander Gordeev , Will Deacon , Thomas Gleixner , linux-arch@vger.kernel.org, Rob Herring , Davidlohr Bueso , Vasily Gorbik , Jonathan Corbet , linux-sh@vger.kernel.org, Huacai Chen , Christophe Leroy , linux-acpi@vger.kernel.org, Ingo Molnar , Zi Yan , devicetree@vger.kernel.org, Arnd Bergmann , linux-s390@vger.kernel.org, Heiko Carstens , Borislav Petkov , linux-cxl@vger.kernel.org, loongarch@lists.linux.dev, John Paul Adrian Glaubitz , Dan Williams , linux-arm-kernel@lists.infradead.org, Thomas Bogendoerfer , Greg Kroah-Hartman , linux-doc@vger.kernel.org, linux-mips@vger.kernel.org, Samuel Holland , linux-riscv@lists.infradead.org, Palmer Dabbelt , Jonathan Cameron , "Rafael J. Wysocki" , Andrew Morton , linuxppc-dev@lists.ozlabs.org, "David S. Miller" , Mike Rapoport Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: "Mike Rapoport (Microsoft)" Hi, Following the discussion about handling of CXL fixed memory windows on arm64 [1] I decided to bite the bullet and move numa_memblks from x86 to the generic code so they will be available on arm64/riscv and maybe on loongarch sometime later. While it could be possible to use memblock to describe CXL memory windows, it currently lacks notion of unpopulated memory ranges and numa_memblks does implement this. Another reason to make numa_memblks generic is that both arch_numa (arm64 and riscv) and loongarch use trimmed copy of x86 code although there is no fundamental reason why the same code cannot be used on all these platforms. Having numa_memblks in mm/ will make it's interaction with ACPI and FDT more consistent and I believe will reduce maintenance burden. And with generic numa_memblks it is (almost) straightforward to enable NUMA emulation on arm64 and riscv. The first 9 commits in this series are cleanups that are not strictly related to numa_memblks. Commits 10-16 slightly reorder code in x86 to allow extracting numa_memblks and NUMA emulation to the generic code. Commits 17-19 actually move the code from arch/x86/ to mm/ and commits 20-22 does some aftermath cleanups. Commit 23 switches arch_numa to numa_memblks. Commit 24 enables usage of phys_to_target_node() and memory_add_physaddr_to_nid() with numa_memblks. Commit 25 moves the description for numa=fake from x86 to admin-guide [1] https://lore.kernel.org/all/20240529171236.32002-1-Jonathan.Cameron@huawei.com/ v1: https://lore.kernel.org/all/20240716111346.3676969-1-rppt@kernel.org * add cleanup for arch_alloc_nodedata and HAVE_ARCH_NODEDATA_EXTENSION * add patch that moves description of numa=fake kernel parameter from x86 to admin-guide * reduce rounding up of node_data allocations from PAGE_SIZE to SMP_CACHE_BYTES * restore single allocation attempt of numa_distance * fix several comments * added review tags Mike Rapoport (Microsoft) (25): mm: move kernel/numa.c to mm/ MIPS: sgi-ip27: make NODE_DATA() the same as on all other architectures MIPS: sgi-ip27: ensure node_possible_map only contains valid nodes MIPS: sgi-ip27: drop HAVE_ARCH_NODEDATA_EXTENSION MIPS: loongson64: rename __node_data to node_data MIPS: loongson64: drop HAVE_ARCH_NODEDATA_EXTENSION mm: drop CONFIG_HAVE_ARCH_NODEDATA_EXTENSION arch, mm: move definition of node_data to generic code arch, mm: pull out allocation of NODE_DATA to generic code x86/numa: simplify numa_distance allocation x86/numa: use get_pfn_range_for_nid to verify that node spans memory x86/numa: move FAKE_NODE_* defines to numa_emu x86/numa_emu: simplify allocation of phys_dist x86/numa_emu: split __apicid_to_node update to a helper function x86/numa_emu: use a helper function to get MAX_DMA32_PFN x86/numa: numa_{add,remove}_cpu: make cpu parameter unsigned mm: introduce numa_memblks mm: move numa_distance and related code from x86 to numa_memblks mm: introduce numa_emulation mm: numa_memblks: introduce numa_memblks_init mm: numa_memblks: make several functions and variables static mm: numa_memblks: use memblock_{start,end}_of_DRAM() when sanitizing meminfo arch_numa: switch over to numa_memblks mm: make range-to-target_node lookup facility a part of numa_memblks docs: move numa=fake description to kernel-parameters.txt .../admin-guide/kernel-parameters.txt | 15 + .../arch/x86/x86_64/boot-options.rst | 12 - arch/arm64/include/asm/Kbuild | 1 + arch/arm64/include/asm/mmzone.h | 13 - arch/arm64/include/asm/topology.h | 1 + arch/loongarch/include/asm/Kbuild | 1 + arch/loongarch/include/asm/mmzone.h | 16 - arch/loongarch/include/asm/topology.h | 1 + arch/loongarch/kernel/numa.c | 21 - arch/mips/Kconfig | 5 - arch/mips/include/asm/mach-ip27/mmzone.h | 1 - .../mips/include/asm/mach-loongson64/mmzone.h | 4 - arch/mips/loongson64/numa.c | 28 +- arch/mips/sgi-ip27/ip27-memory.c | 12 +- arch/mips/sgi-ip27/ip27-smp.c | 2 + arch/powerpc/include/asm/mmzone.h | 6 - arch/powerpc/mm/numa.c | 26 +- arch/riscv/include/asm/Kbuild | 1 + arch/riscv/include/asm/mmzone.h | 13 - arch/riscv/include/asm/topology.h | 4 + arch/s390/include/asm/Kbuild | 1 + arch/s390/include/asm/mmzone.h | 17 - arch/s390/kernel/numa.c | 3 - arch/sh/include/asm/mmzone.h | 3 - arch/sh/mm/init.c | 7 +- arch/sh/mm/numa.c | 3 - arch/sparc/include/asm/mmzone.h | 4 - arch/sparc/mm/init_64.c | 11 +- arch/x86/Kconfig | 9 +- arch/x86/include/asm/Kbuild | 1 + arch/x86/include/asm/mmzone.h | 6 - arch/x86/include/asm/mmzone_32.h | 17 - arch/x86/include/asm/mmzone_64.h | 18 - arch/x86/include/asm/numa.h | 26 +- arch/x86/include/asm/sparsemem.h | 9 - arch/x86/mm/Makefile | 1 - arch/x86/mm/amdtopology.c | 1 + arch/x86/mm/numa.c | 618 +----------------- arch/x86/mm/numa_internal.h | 24 - drivers/acpi/numa/srat.c | 1 + drivers/base/Kconfig | 1 + drivers/base/arch_numa.c | 223 ++----- drivers/cxl/Kconfig | 2 +- drivers/dax/Kconfig | 2 +- drivers/of/of_numa.c | 1 + include/asm-generic/mmzone.h | 5 + include/asm-generic/numa.h | 6 +- include/linux/memory_hotplug.h | 48 -- include/linux/numa.h | 5 + include/linux/numa_memblks.h | 58 ++ kernel/Makefile | 1 - kernel/numa.c | 26 - mm/Kconfig | 11 + mm/Makefile | 3 + mm/mm_init.c | 3 +- mm/numa.c | 57 ++ {arch/x86/mm => mm}/numa_emulation.c | 42 +- mm/numa_memblks.c | 568 ++++++++++++++++ 58 files changed, 867 insertions(+), 1158 deletions(-) delete mode 100644 arch/arm64/include/asm/mmzone.h delete mode 100644 arch/loongarch/include/asm/mmzone.h delete mode 100644 arch/riscv/include/asm/mmzone.h delete mode 100644 arch/s390/include/asm/mmzone.h delete mode 100644 arch/x86/include/asm/mmzone.h delete mode 100644 arch/x86/include/asm/mmzone_32.h delete mode 100644 arch/x86/include/asm/mmzone_64.h create mode 100644 include/asm-generic/mmzone.h create mode 100644 include/linux/numa_memblks.h delete mode 100644 kernel/numa.c create mode 100644 mm/numa.c rename {arch/x86/mm => mm}/numa_emulation.c (94%) create mode 100644 mm/numa_memblks.c base-commit: 22a40d14b572deb80c0648557f4bd502d7e83826 -- 2.43.0