1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited 4 */ 5 #ifndef __ASM_TOPOLOGY_H 6 #define __ASM_TOPOLOGY_H 7 8 #include <linux/smp.h> 9 10 #ifdef CONFIG_NUMA 11 12 extern cpumask_t cpus_on_node[]; 13 14 #define cpumask_of_node(node) (&cpus_on_node[node]) 15 16 struct pci_bus; 17 extern int pcibus_to_node(struct pci_bus *); 18 19 #define cpumask_of_pcibus(bus) (cpu_online_mask) 20 21 extern unsigned char node_distances[MAX_NUMNODES][MAX_NUMNODES]; 22 23 void numa_set_distance(int from, int to, int distance); 24 25 #define node_distance(from, to) (node_distances[(from)][(to)]) 26 27 #else 28 #define pcibus_to_node(bus) 0 29 #endif 30 31 #ifdef CONFIG_SMP 32 #define topology_physical_package_id(cpu) (cpu_data[cpu].package) 33 #define topology_core_id(cpu) (cpu_data[cpu].core) 34 #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) 35 #define topology_sibling_cpumask(cpu) (&cpu_sibling_map[cpu]) 36 #endif 37 38 #include <asm-generic/topology.h> 39 40 static inline void arch_fix_phys_package_id(int num, u32 slot) { } 41 #endif /* __ASM_TOPOLOGY_H */ 42