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Every architecture that supports NUMA defines node_data in the same way: struct pglist_data *node_data[MAX_NUMNODES]; No reason to keep multiple copies of this definition and its forward declarations, especially when such forward declaration is the only thing in include/asm/mmzone.h for many architectures. Add definition and declaration of node_data to generic code and drop architecture-specific versions. Link: https://lkml.kernel.org/r/20240807064110.1003856-8-rppt@kernel.org Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Acked-by: David Hildenbrand <david@redhat.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Davidlohr Bueso <dave@stgolabs.net> Tested-by: Zi Yan <ziy@nvidia.com> # for x86_64 and arm64 Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [arm64 + CXL via QEMU] Acked-by: Dan Williams <dan.j.williams@intel.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Andreas Larsson <andreas@gaisler.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Rob Herring (Arm) <robh@kernel.org> Cc: Samuel Holland <samuel.holland@sifive.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/*
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* arch/sh/mm/numa.c - Multiple node support for SH machines
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*
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* Copyright (C) 2007 Paul Mundt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/module.h>
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#include <linux/memblock.h>
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#include <linux/mm.h>
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#include <linux/numa.h>
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#include <linux/pfn.h>
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#include <asm/sections.h>
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/*
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* On SH machines the conventional approach is to stash system RAM
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* in node 0, and other memory blocks in to node 1 and up, ordered by
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* latency. Each node's pgdat is node-local at the beginning of the node,
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* immediately followed by the node mem map.
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*/
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void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
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{
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unsigned long start_pfn, end_pfn;
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/* Don't allow bogus node assignment */
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BUG_ON(nid >= MAX_NUMNODES || nid <= 0);
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start_pfn = PFN_DOWN(start);
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end_pfn = PFN_DOWN(end);
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pmb_bolt_mapping((unsigned long)__va(start), start, end - start,
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PAGE_KERNEL);
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memblock_add(start, end - start);
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__add_active_range(nid, start_pfn, end_pfn);
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/* Node-local pgdat */
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NODE_DATA(nid) = memblock_alloc_node(sizeof(struct pglist_data),
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SMP_CACHE_BYTES, nid);
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if (!NODE_DATA(nid))
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panic("%s: Failed to allocate %zu bytes align=0x%x nid=%d\n",
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__func__, sizeof(struct pglist_data), SMP_CACHE_BYTES,
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nid);
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NODE_DATA(nid)->node_start_pfn = start_pfn;
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NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;
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/* It's up */
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node_set_online(nid);
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}
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