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
10 void __init numa_set_distance(int from, int to, int distance);
11 void __init numa_reset_distance(void);
12
13 struct numa_memblk {
14 u64 start;
15 u64 end;
16 int nid;
17 };
18
19 struct numa_meminfo {
20 int nr_blks;
21 struct numa_memblk blk[NR_NODE_MEMBLKS];
22 };
23
24 int __init numa_add_memblk(int nodeid, u64 start, u64 end);
25 void __init numa_remove_memblk_from(int idx, struct numa_meminfo *mi);
26
27 int __init numa_cleanup_meminfo(struct numa_meminfo *mi);
28
29 int __init numa_memblks_init(int (*init_func)(void),
30 bool memblock_force_top_down);
31
32 extern int numa_distance_cnt;
33
34 #ifdef CONFIG_NUMA_EMU
35 extern int emu_nid_to_phys[MAX_NUMNODES];
36 int numa_emu_cmdline(char *str);
37 void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys,
38 unsigned int nr_emu_nids);
39 u64 __init numa_emu_dma_end(void);
40 void __init numa_emulation(struct numa_meminfo *numa_meminfo,
41 int numa_dist_cnt);
42 #else
numa_emulation(struct numa_meminfo * numa_meminfo,int numa_dist_cnt)43 static inline void numa_emulation(struct numa_meminfo *numa_meminfo,
44 int numa_dist_cnt)
45 { }
numa_emu_cmdline(char * str)46 static inline int numa_emu_cmdline(char *str)
47 {
48 return -EINVAL;
49 }
50 #endif /* CONFIG_NUMA_EMU */
51
52 #ifdef CONFIG_NUMA_KEEP_MEMINFO
53 extern int phys_to_target_node(u64 start);
54 #define phys_to_target_node phys_to_target_node
55 extern int memory_add_physaddr_to_nid(u64 start);
56 #define memory_add_physaddr_to_nid memory_add_physaddr_to_nid
57 #endif /* CONFIG_NUMA_KEEP_MEMINFO */
58
59 #endif /* CONFIG_NUMA_MEMBLKS */
60
61 #endif /* __NUMA_MEMBLKS_H */
62