1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __ASM_TOPOLOGY_H 3#define __ASM_TOPOLOGY_H 4 5#include <linux/cpumask.h> 6 7struct cpu_topology { 8 int thread_id; 9 int core_id; 10 int package_id; 11 int llc_id; 12 cpumask_t thread_sibling; 13 cpumask_t core_sibling; 14 cpumask_t llc_sibling; 15}; 16 17extern struct cpu_topology cpu_topology[NR_CPUS]; 18 19#define topology_physical_package_id(cpu) (cpu_topology[cpu].package_id) 20#define topology_core_id(cpu) (cpu_topology[cpu].core_id) 21#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling) 22#define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling) 23#define topology_llc_cpumask(cpu) (&cpu_topology[cpu].llc_sibling) 24 25void init_cpu_topology(void); 26void store_cpu_topology(unsigned int cpuid); 27void remove_cpu_topology(unsigned int cpuid); 28const struct cpumask *cpu_coregroup_mask(int cpu); 29 30#ifdef CONFIG_NUMA 31 32struct pci_bus; 33int pcibus_to_node(struct pci_bus *bus); 34#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ 35 cpu_all_mask : \ 36 cpumask_of_node(pcibus_to_node(bus))) 37 38#endif /* CONFIG_NUMA */ 39 40#include <linux/arch_topology.h> 41 42/* Replace task scheduler's default frequency-invariant accounting */ 43#define arch_scale_freq_capacity topology_get_freq_scale 44 45/* Replace task scheduler's default cpu-invariant accounting */ 46#define arch_scale_cpu_capacity topology_get_cpu_scale 47 48/* Enable topology flag updates */ 49#define arch_update_cpu_topology topology_update_cpu_topology 50 51#include <asm-generic/topology.h> 52 53#endif /* _ASM_ARM_TOPOLOGY_H */ 54