1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Author: Jianmin Lv <lvjianmin@loongson.cn>
4 * Huacai Chen <chenhuacai@loongson.cn>
6 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
9 #ifndef _ASM_LOONGARCH_NUMA_H
10 #define _ASM_LOONGARCH_NUMA_H
12 #include <linux/nodemask.h>
14 #define NODE_ADDRSPACE_SHIFT 44
16 #define pa_to_nid(addr) (((addr) & 0xf00000000000) >> NODE_ADDRSPACE_SHIFT)
17 #define nid_to_addrbase(nid) (_ULCAST_(nid) << NODE_ADDRSPACE_SHIFT)
22 extern s16 __cpuid_to_node[CONFIG_NR_CPUS];
23 extern nodemask_t numa_nodes_parsed __initdata;
31 #define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
34 struct numa_memblk blk[NR_NODE_MEMBLKS];
37 extern int __init numa_add_memblk(int nodeid, u64 start, u64 end);
39 extern void __init early_numa_add_cpu(int cpuid, s16 node);
40 extern void numa_add_cpu(unsigned int cpu);
41 extern void numa_remove_cpu(unsigned int cpu);
43 static inline void numa_clear_node(int cpu)
47 static inline void set_cpuid_to_node(int cpuid, s16 node)
49 __cpuid_to_node[cpuid] = node;
52 extern int early_cpu_to_node(int cpu);
56 static inline void early_numa_add_cpu(int cpuid, s16 node) { }
57 static inline void numa_add_cpu(unsigned int cpu) { }
58 static inline void numa_remove_cpu(unsigned int cpu) { }
60 static inline int early_cpu_to_node(int cpu)
65 #endif /* CONFIG_NUMA */
67 #endif /* _ASM_LOONGARCH_NUMA_H */