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 #include <asm/numa.h> 12 13 extern cpumask_t cpus_on_node[]; 14 15 #define cpumask_of_node(node) (&cpus_on_node[node]) 16 17 struct pci_bus; 18 extern int pcibus_to_node(struct pci_bus *); 19 20 #define cpumask_of_pcibus(bus) (cpu_online_mask) 21 22 int __node_distance(int from, int to); 23 #define node_distance(from, to) __node_distance(from, to) 24 25 #else 26 #define pcibus_to_node(bus) 0 27 #endif 28 29 #ifdef CONFIG_SMP 30 /* 31 * Return cpus that shares the last level cache. 32 */ 33 static inline const struct cpumask *cpu_coregroup_mask(int cpu) 34 { 35 return &cpu_llc_shared_map[cpu]; 36 } 37 38 #define topology_physical_package_id(cpu) (cpu_data[cpu].package) 39 #define topology_core_id(cpu) (cpu_data[cpu].core) 40 #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) 41 #define topology_sibling_cpumask(cpu) (&cpu_sibling_map[cpu]) 42 #endif 43 44 #include <asm-generic/topology.h> 45 46 static inline void arch_fix_phys_package_id(int num, u32 slot) { } 47 #endif /* __ASM_TOPOLOGY_H */ 48