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