56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
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*
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* PowerPC64 port:
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* Copyright (C) 2002 Anton Blanchard, IBM Corp.
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*/
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#ifndef _ASM_MMZONE_H_
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#define _ASM_MMZONE_H_
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#ifdef __KERNEL__
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#include <linux/cpumask.h>
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/*
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* generic non-linear memory support:
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*
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* 1) we will not split memory into more chunks than will fit into the
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* flags field of the struct page
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*/
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#ifdef CONFIG_NUMA
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extern struct pglist_data *node_data[];
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/*
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* Return a pointer to the node data for node n.
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*/
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#define NODE_DATA(nid) (node_data[nid])
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/*
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* Following are specific to this numa platform.
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*/
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extern int numa_cpu_lookup_table[];
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extern cpumask_var_t node_to_cpumask_map[];
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#ifdef CONFIG_MEMORY_HOTPLUG
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extern unsigned long max_pfn;
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u64 memory_hotplug_max(void);
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#else
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#define memory_hotplug_max() memblock_end_of_DRAM()
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#endif
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#else
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#define memory_hotplug_max() memblock_end_of_DRAM()
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#endif /* CONFIG_NUMA */
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#ifdef CONFIG_FA_DUMP
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#define __HAVE_ARCH_RESERVED_KERNEL_PAGES
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#endif
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#ifdef CONFIG_MEMORY_HOTPLUG
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extern int create_section_mapping(unsigned long start, unsigned long end,
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int nid, pgprot_t prot);
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#endif
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#endif /* __KERNEL__ */
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#endif /* _ASM_MMZONE_H_ */
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