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1b5695b024
The x86 implementation of range-to-target_node lookup (i.e. phys_to_target_node() and memory_add_physaddr_to_nid()) relies on numa_memblks. Since numa_memblks are now part of the generic code, move these functions from x86 to mm/numa_memblks.c and select CONFIG_NUMA_KEEP_MEMINFO when CONFIG_NUMA_MEMBLKS=y for dax and cxl. [rppt@kernel.org: fix build] Link: https://lkml.kernel.org/r/ZtVfSt_zloPdDqVB@kernel.org Link: https://lkml.kernel.org/r/20240807064110.1003856-26-rppt@kernel.org Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Tested-by: Zi Yan <ziy@nvidia.com> # for x86_64 and arm64 Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [arm64 + CXL via QEMU] Reviewed-by: Dan Williams <dan.j.williams@intel.com> Acked-by: David Hildenbrand <david@redhat.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: Davidlohr Bueso <dave@stgolabs.net> 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>
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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#include <linux/memblock.h>
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#include <linux/printk.h>
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#include <linux/numa.h>
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#include <linux/numa_memblks.h>
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struct pglist_data *node_data[MAX_NUMNODES];
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EXPORT_SYMBOL(node_data);
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/* Allocate NODE_DATA for a node on the local memory */
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void __init alloc_node_data(int nid)
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{
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const size_t nd_size = roundup(sizeof(pg_data_t), SMP_CACHE_BYTES);
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u64 nd_pa;
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void *nd;
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int tnid;
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/* Allocate node data. Try node-local memory and then any node. */
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nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);
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if (!nd_pa)
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panic("Cannot allocate %zu bytes for node %d data\n",
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nd_size, nid);
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nd = __va(nd_pa);
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/* report and initialize */
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pr_info("NODE_DATA(%d) allocated [mem %#010Lx-%#010Lx]\n", nid,
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nd_pa, nd_pa + nd_size - 1);
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tnid = early_pfn_to_nid(nd_pa >> PAGE_SHIFT);
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if (tnid != nid)
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pr_info(" NODE_DATA(%d) on node %d\n", nid, tnid);
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node_data[nid] = nd;
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memset(NODE_DATA(nid), 0, sizeof(pg_data_t));
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}
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void __init alloc_offline_node_data(int nid)
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{
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pg_data_t *pgdat;
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pgdat = memblock_alloc(sizeof(*pgdat), SMP_CACHE_BYTES);
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if (!pgdat)
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panic("Cannot allocate %zuB for node %d.\n",
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sizeof(*pgdat), nid);
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node_data[nid] = pgdat;
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}
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/* Stub functions: */
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#ifndef memory_add_physaddr_to_nid
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int memory_add_physaddr_to_nid(u64 start)
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{
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pr_info_once("Unknown online node for memory at 0x%llx, assuming node 0\n",
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start);
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return 0;
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}
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EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
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#endif
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#ifndef phys_to_target_node
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int phys_to_target_node(u64 start)
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{
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pr_info_once("Unknown target node for memory at 0x%llx, assuming node 0\n",
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start);
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return 0;
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}
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EXPORT_SYMBOL_GPL(phys_to_target_node);
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#endif
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