topology.h (1036B)
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 12extern cpumask_t cpus_on_node[]; 13 14#define cpumask_of_node(node) (&cpus_on_node[node]) 15 16struct pci_bus; 17extern int pcibus_to_node(struct pci_bus *); 18 19#define cpumask_of_pcibus(bus) (cpu_online_mask) 20 21extern unsigned char node_distances[MAX_NUMNODES][MAX_NUMNODES]; 22 23void 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 40static inline void arch_fix_phys_package_id(int num, u32 slot) { } 41#endif /* __ASM_TOPOLOGY_H */