Warning: This file is not a C or C++ file. It does not have highlighting.
| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | /* |
| 3 | * Author: Jianmin Lv <lvjianmin@loongson.cn> |
| 4 | * Huacai Chen <chenhuacai@loongson.cn> |
| 5 | * |
| 6 | * Copyright (C) 2020-2022 Loongson Technology Corporation Limited |
| 7 | */ |
| 8 | |
| 9 | #ifndef _ASM_LOONGARCH_NUMA_H |
| 10 | #define _ASM_LOONGARCH_NUMA_H |
| 11 | |
| 12 | #include <linux/nodemask.h> |
| 13 | |
| 14 | #define NODE_ADDRSPACE_SHIFT 44 |
| 15 | |
| 16 | #define pa_to_nid(addr) (((addr) & 0xf00000000000) >> NODE_ADDRSPACE_SHIFT) |
| 17 | #define nid_to_addrbase(nid) (_ULCAST_(nid) << NODE_ADDRSPACE_SHIFT) |
| 18 | |
| 19 | #ifdef CONFIG_NUMA |
| 20 | |
| 21 | extern int numa_off; |
| 22 | extern s16 __cpuid_to_node[CONFIG_NR_CPUS]; |
| 23 | extern nodemask_t numa_nodes_parsed __initdata; |
| 24 | |
| 25 | extern void __init early_numa_add_cpu(int cpuid, s16 node); |
| 26 | extern void numa_add_cpu(unsigned int cpu); |
| 27 | extern void numa_remove_cpu(unsigned int cpu); |
| 28 | |
| 29 | static inline void numa_clear_node(int cpu) |
| 30 | { |
| 31 | } |
| 32 | |
| 33 | static inline void set_cpuid_to_node(int cpuid, s16 node) |
| 34 | { |
| 35 | __cpuid_to_node[cpuid] = node; |
| 36 | } |
| 37 | |
| 38 | extern int early_cpu_to_node(int cpu); |
| 39 | |
| 40 | #else |
| 41 | |
| 42 | static inline void early_numa_add_cpu(int cpuid, s16 node) { } |
| 43 | static inline void numa_add_cpu(unsigned int cpu) { } |
| 44 | static inline void numa_remove_cpu(unsigned int cpu) { } |
| 45 | static inline void set_cpuid_to_node(int cpuid, s16 node) { } |
| 46 | |
| 47 | static inline int early_cpu_to_node(int cpu) |
| 48 | { |
| 49 | return 0; |
| 50 | } |
| 51 | |
| 52 | #endif /* CONFIG_NUMA */ |
| 53 | |
| 54 | #endif /* _ASM_LOONGARCH_NUMA_H */ |
| 55 |
Warning: This file is not a C or C++ file. It does not have highlighting.