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 43 static inline void numa_emulation(struct numa_meminfo *numa_meminfo, 44 int numa_dist_cnt) 45 { } 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