74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
#ifndef _ASM_ARM_TOPOLOGY_H
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#define _ASM_ARM_TOPOLOGY_H
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#ifdef CONFIG_ARM_CPU_TOPOLOGY
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#include <linux/cpumask.h>
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struct cputopo_arm {
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int thread_id;
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int core_id;
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int socket_id;
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cpumask_t thread_sibling;
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cpumask_t core_sibling;
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};
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extern struct cputopo_arm cpu_topology[NR_CPUS];
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#define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id)
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#define topology_core_id(cpu) (cpu_topology[cpu].core_id)
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#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling)
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#define topology_thread_cpumask(cpu) (&cpu_topology[cpu].thread_sibling)
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#define mc_capable() (cpu_topology[0].socket_id != -1)
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#define smt_capable() (cpu_topology[0].thread_id != -1)
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void init_cpu_topology(void);
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void store_cpu_topology(unsigned int cpuid);
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const struct cpumask *cpu_coregroup_mask(int cpu);
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int cluster_to_logical_mask(unsigned int socket_id, cpumask_t *cluster_mask);
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#ifdef CONFIG_DISABLE_CPU_SCHED_DOMAIN_BALANCE
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/* Common values for CPUs */
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#ifndef SD_CPU_INIT
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#define SD_CPU_INIT (struct sched_domain) { \
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.min_interval = 1, \
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.max_interval = 4, \
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.busy_factor = 64, \
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.imbalance_pct = 125, \
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.cache_nice_tries = 1, \
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.busy_idx = 2, \
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.idle_idx = 1, \
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.newidle_idx = 0, \
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.wake_idx = 0, \
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.forkexec_idx = 0, \
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\
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.flags = 0*SD_LOAD_BALANCE \
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| 1*SD_BALANCE_NEWIDLE \
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| 1*SD_BALANCE_EXEC \
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| 1*SD_BALANCE_FORK \
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| 0*SD_BALANCE_WAKE \
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| 1*SD_WAKE_AFFINE \
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| 0*SD_SHARE_CPUPOWER \
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| 0*SD_SHARE_PKG_RESOURCES \
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| 0*SD_SERIALIZE \
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, \
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.last_balance = jiffies, \
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.balance_interval = 1, \
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}
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#endif
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#endif /* CONFIG_DISABLE_CPU_SCHED_DOMAIN_BALANCE */
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#else
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static inline void init_cpu_topology(void) { }
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static inline void store_cpu_topology(unsigned int cpuid) { }
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static inline int cluster_to_logical_mask(unsigned int socket_id,
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cpumask_t *cluster_mask) { return -EINVAL; }
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#endif
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#include <asm-generic/topology.h>
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#endif /* _ASM_ARM_TOPOLOGY_H */
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