1 #ifndef __ASM_TOPOLOGY_H 2 #define __ASM_TOPOLOGY_H 3 4 #include <linux/cpumask.h> 5 6 struct cpu_topology { 7 int thread_id; 8 int core_id; 9 int cluster_id; 10 cpumask_t thread_sibling; 11 cpumask_t core_sibling; 12 }; 13 14 extern struct cpu_topology cpu_topology[NR_CPUS]; 15 16 #define topology_physical_package_id(cpu) (cpu_topology[cpu].cluster_id) 17 #define topology_core_id(cpu) (cpu_topology[cpu].core_id) 18 #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling) 19 #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling) 20 21 void init_cpu_topology(void); 22 void store_cpu_topology(unsigned int cpuid); 23 const struct cpumask *cpu_coregroup_mask(int cpu); 24 25 #ifdef CONFIG_NUMA 26 27 struct pci_bus; 28 int pcibus_to_node(struct pci_bus *bus); 29 #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ 30 cpu_all_mask : \ 31 cpumask_of_node(pcibus_to_node(bus))) 32 33 #endif /* CONFIG_NUMA */ 34 35 #include <asm-generic/topology.h> 36 37 #endif /* _ASM_ARM_TOPOLOGY_H */ 38