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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __NUMA_MEMBLKS_H
3#define __NUMA_MEMBLKS_H
4
5#ifdef CONFIG_NUMA_MEMBLKS
6#include <linux/types.h>
7
8#define NR_NODE_MEMBLKS (MAX_NUMNODES * 2)
9
10void __init numa_set_distance(int from, int to, int distance);
11void __init numa_reset_distance(void);
12
13struct numa_memblk {
14 u64 start;
15 u64 end;
16 int nid;
17};
18
19struct numa_meminfo {
20 int nr_blks;
21 struct numa_memblk blk[NR_NODE_MEMBLKS];
22};
23
24int __init numa_add_memblk(int nodeid, u64 start, u64 end);
25void __init numa_remove_memblk_from(int idx, struct numa_meminfo *mi);
26
27int __init numa_cleanup_meminfo(struct numa_meminfo *mi);
28
29int __init numa_memblks_init(int (*init_func)(void),
30 bool memblock_force_top_down);
31
32#ifdef CONFIG_NUMA_EMU
33int numa_emu_cmdline(char *str);
34void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys,
35 unsigned int nr_emu_nids);
36u64 __init numa_emu_dma_end(void);
37void __init numa_emulation(struct numa_meminfo *numa_meminfo,
38 int numa_dist_cnt);
39#else
40static inline void numa_emulation(struct numa_meminfo *numa_meminfo,
41 int numa_dist_cnt)
42{ }
43static inline int numa_emu_cmdline(char *str)
44{
45 return -EINVAL;
46}
47#endif /* CONFIG_NUMA_EMU */
48
49#ifdef CONFIG_NUMA_KEEP_MEMINFO
50extern int phys_to_target_node(u64 start);
51#define phys_to_target_node phys_to_target_node
52extern int memory_add_physaddr_to_nid(u64 start);
53#define memory_add_physaddr_to_nid memory_add_physaddr_to_nid
54#endif /* CONFIG_NUMA_KEEP_MEMINFO */
55
56#endif /* CONFIG_NUMA_MEMBLKS */
57
58#endif /* __NUMA_MEMBLKS_H */