[deliverable/linux.git] / arch / arm64 / include / asm / topology.h

#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_thread_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 */
Commit	Line	Data
f6e763b9 MB	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
f6e763b9 MB	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 */