processor_perf.h

xen虚拟机源代码安装包

#ifndef __XEN_PROCESSOR_PM_H__
#define __XEN_PROCESSOR_PM_H__

#include <public/platform.h>
#include <public/sysctl.h>

#define XEN_PX_INIT 0x80000000

int get_cpu_id(u8);
int acpi_cpufreq_init(void);
int powernow_cpufreq_init(void);

void px_statistic_update(cpumask_t, uint8_t, uint8_t);
int  px_statistic_init(int);
void px_statistic_reset(int);
void px_statistic_suspend(void);
void px_statistic_resume(void);

void cpufreq_dom_exit(void);
int  cpufreq_dom_init(void);
int  cpufreq_dom_dbs(unsigned int);
void cpufreq_suspend(void);
int  cpufreq_resume(void);

uint64_t get_cpu_idle_time(unsigned int);

struct processor_performance {
    uint32_t state;
    uint32_t ppc;
    struct xen_pct_register control_register;
    struct xen_pct_register status_register;
    uint32_t state_count;
    struct xen_processor_px *states;
    struct xen_psd_package domain_info;
    cpumask_t shared_cpu_map;
    uint32_t shared_type;

    uint32_t init;
};

struct processor_pminfo {
    uint32_t acpi_id;
    uint32_t id;
    struct processor_performance    perf;
};

extern struct processor_pminfo processor_pminfo[NR_CPUS];

struct px_stat {
    uint8_t total;        /* total Px states */
    uint8_t usable;       /* usable Px states */
    uint8_t last;         /* last Px state */
    uint8_t cur;          /* current Px state */
    uint64_t *trans_pt;   /* Px transition table */
    pm_px_val_t *pt;
};

struct pm_px {
    struct px_stat u;
    uint64_t prev_state_wall;
    uint64_t prev_idle_wall;
};

extern struct pm_px px_statistic_data[NR_CPUS];

#endif /* __XEN_PROCESSOR_PM_H__ */