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Filename/usr/src/linux-headers-3.13.0-24/arch/arm/include/asm/topology.h
Size996
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Create time27-Apr-2025 09:50
Last modified20-Jan-2014 10:40
Last accessed07-Jul-2025 07:15
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#ifndef _ASM_ARM_TOPOLOGY_H
#define _ASM_ARM_TOPOLOGY_H

#ifdef CONFIG_ARM_CPU_TOPOLOGY

#include <linux/cpumask.h>

struct cputopo_arm {
int thread_id;
int core_id;
int socket_id;
cpumask_t thread_sibling;
cpumask_t core_sibling;
};

extern struct cputopo_arm cpu_topology[NR_CPUS];

#define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_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)

#define mc_capable() (cpu_topology[0].socket_id != -1)
#define smt_capable() (cpu_topology[0].thread_id != -1)

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 */