| #ifndef __ASM_TOPOLOGY_H |
| #define __ASM_TOPOLOGY_H |
| |
| #ifdef CONFIG_SMP |
| |
| #include <linux/cpumask.h> |
| |
| struct cpu_topology { |
| int thread_id; |
| int core_id; |
| int cluster_id; |
| cpumask_t thread_sibling; |
| cpumask_t core_sibling; |
| }; |
| |
| extern struct cpu_topology cpu_topology[NR_CPUS]; |
| |
| #define topology_physical_package_id(cpu) (cpu_topology[cpu].cluster_id) |
| #define topology_core_id(cpu) (cpu_topology[cpu].core_id) |
| #define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling) |
| #define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling) |
| |
| void init_cpu_topology(void); |
| void store_cpu_topology(unsigned int cpuid); |
| const struct cpumask *cpu_coregroup_mask(int cpu); |
| |
| #else |
| |
| static inline void init_cpu_topology(void) { } |
| static inline void store_cpu_topology(unsigned int cpuid) { } |
| |
| #endif |
| |
| #include <asm-generic/topology.h> |
| |
| #endif /* _ASM_ARM_TOPOLOGY_H */ |