1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __ASM_TOPOLOGY_H 3 #define __ASM_TOPOLOGY_H 4 5 #include <linux/cpumask.h> 6 7 struct 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_siblings; 15 }; 16 17 extern 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 24 void init_cpu_topology(void); 25 void store_cpu_topology(unsigned int cpuid); 26 const struct cpumask *cpu_coregroup_mask(int cpu); 27 28 #ifdef CONFIG_NUMA 29 30 struct pci_bus; 31 int pcibus_to_node(struct pci_bus *bus); 32 #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ 33 cpu_all_mask : \ 34 cpumask_of_node(pcibus_to_node(bus))) 35 36 #endif /* CONFIG_NUMA */ 37 38 #include <linux/arch_topology.h> 39 40 /* Replace task scheduler's default frequency-invariant accounting */ 41 #define arch_scale_freq_capacity topology_get_freq_scale 42 43 /* Replace task scheduler's default cpu-invariant accounting */ 44 #define arch_scale_cpu_capacity topology_get_cpu_scale 45 46 #include <asm-generic/topology.h> 47 48 #endif /* _ASM_ARM_TOPOLOGY_H */ 49