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 int __init numa_add_reserved_memblk(int nid, u64 start, u64 end);
26 void __init numa_remove_memblk_from(int idx, struct numa_meminfo *mi);
27
28 int __init numa_cleanup_meminfo(struct numa_meminfo *mi);
29
30 int __init numa_memblks_init(int (*init_func)(void),
31 bool memblock_force_top_down);
32
33 extern int numa_distance_cnt;
34
35 #ifdef CONFIG_NUMA_EMU
36 extern int emu_nid_to_phys[MAX_NUMNODES];
37 int numa_emu_cmdline(char *str);
38 void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys,
39 unsigned int nr_emu_nids);
40 u64 __init numa_emu_dma_end(void);
41 void __init numa_emulation(struct numa_meminfo *numa_meminfo,
42 int numa_dist_cnt);
43 #else
numa_emulation(struct numa_meminfo * numa_meminfo,int numa_dist_cnt)44 static inline void numa_emulation(struct numa_meminfo *numa_meminfo,
45 int numa_dist_cnt)
46 { }
numa_emu_cmdline(char * str)47 static inline int numa_emu_cmdline(char *str)
48 {
49 return -EINVAL;
50 }
51 #endif /* CONFIG_NUMA_EMU */
52
53 #ifdef CONFIG_NUMA_KEEP_MEMINFO
54 extern int phys_to_target_node(u64 start);
55 #define phys_to_target_node phys_to_target_node
56 extern int memory_add_physaddr_to_nid(u64 start);
57 #define memory_add_physaddr_to_nid memory_add_physaddr_to_nid
58 #endif /* CONFIG_NUMA_KEEP_MEMINFO */
59
60 #endif /* CONFIG_NUMA_MEMBLKS */
61
62 #endif /* __NUMA_MEMBLKS_H */
63