/* SPDX-License-Identifier: GPL-2.0 */ /* * Author: Jianmin Lv <lvjianmin@loongson.cn> * Huacai Chen <chenhuacai@loongson.cn> * * Copyright (C) 2020-2022 Loongson Technology Corporation Limited */ #ifndef _ASM_LOONGARCH_NUMA_H #define _ASM_LOONGARCH_NUMA_H #include <linux/nodemask.h> #define NODE_ADDRSPACE_SHIFT 44 #define pa_to_nid(addr) (((addr) & 0xf00000000000) >> NODE_ADDRSPACE_SHIFT) #define nid_to_addrbase(nid) (_ULCAST_(nid) << NODE_ADDRSPACE_SHIFT) #ifdef CONFIG_NUMA extern int numa_off; extern s16 __cpuid_to_node[CONFIG_NR_CPUS]; extern nodemask_t numa_nodes_parsed __initdata; extern void __init early_numa_add_cpu(int cpuid, s16 node); extern void numa_add_cpu(unsigned int cpu); extern void numa_remove_cpu(unsigned int cpu); static inline void numa_clear_node(int cpu) { } static inline void set_cpuid_to_node(int cpuid, s16 node) { __cpuid_to_node[cpuid] = node; } extern int early_cpu_to_node(int cpu); #else static inline void early_numa_add_cpu(int cpuid, s16 node) { } static inline void numa_add_cpu(unsigned int cpu) { } static inline void numa_remove_cpu(unsigned int cpu) { } static inline void set_cpuid_to_node(int cpuid, s16 node) { } static inline int early_cpu_to_node(int cpu) { return 0; } #endif /* CONFIG_NUMA */ #endif /* _ASM_LOONGARCH_NUMA_H */