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 #define mc_capable() (cpu_topology[0].cluster_id != -1) 24 #define smt_capable() (cpu_topology[0].thread_id != -1) 25 26 void init_cpu_topology(void); 27 void store_cpu_topology(unsigned int cpuid); 28 const struct cpumask *cpu_coregroup_mask(int cpu); 29 30 #else 31 32 static inline void init_cpu_topology(void) { } 33 static inline void store_cpu_topology(unsigned int cpuid) { } 34 35 #endif 36 37 #include <asm-generic/topology.h> 38 39 #endif /* _ASM_ARM_TOPOLOGY_H */ 40