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/*
* idlestat.h
*
* Copyright (C) 2014, Linaro Limited.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Contributors:
* Daniel Lezcano <daniel.lezcano@linaro.org>
* Zoran Markovic <zoran.markovic@linaro.org>
* Tuukka Tikkanen <tuukka.tikkanen@linaro.org>
*
*/
#ifndef __IDLESTAT_H
#define __IDLESTAT_H
#define BUFSIZE 256
#define NAMELEN 16
#define MAXCSTATE 16
#define MAXPSTATE 16
#define MAX(A, B) (A > B ? A : B)
#define MIN(A, B) (A < B ? A : B)
#define AVG(A, B, I) ((A) + ((B - A) / (I)))
#define IRQ_WAKEUP_UNIT_NAME "cpu"
#define CPUIDLE_STATE_TARGETRESIDENCY_PATH_FORMAT \
"/sys/devices/system/cpu/cpu%d/cpuidle/state%d/residency"
#define CPUFREQ_AVFREQ_PATH_FORMAT \
"/sys/devices/system/cpu/cpu%d/cpufreq/scaling_available_frequencies"
#define CPUIDLE_STATENAME_PATH_FORMAT \
"/sys/devices/system/cpu/cpu%d/cpuidle/state%d/name"
#define CPUFREQ_CURFREQ_PATH_FORMAT \
"/sys/devices/system/cpu/cpu%d/cpufreq/cpuinfo_cur_freq"
struct cpuidle_data {
double begin;
double end;
double duration;
};
struct cpuidle_cstate {
char *name;
struct cpuidle_data *data;
int nrdata;
int early_wakings;
int late_wakings;
double avg_time;
double max_time;
double min_time;
double duration;
int target_residency; /* -1 if not available */
};
struct wakeup_irq {
int id;
char name[NAMELEN+1];
int count;
int early_triggers;
int late_triggers;
};
struct wakeup_info {
struct wakeup_irq *irqinfo;
int nrdata;
};
struct cpuidle_cstates {
struct cpuidle_cstate cstate[MAXCSTATE];
struct wakeup_info wakeinfo;
int current_cstate;
int cstate_max;
struct wakeup_irq *wakeirq;
enum {as_expected, too_long, too_short} actual_residency;
};
extern void release_cstate_info(struct cpuidle_cstates *cstates, int nrcpus);
struct cpufreq_pstate {
int id;
unsigned int freq;
int count;
double min_time;
double max_time;
double avg_time;
double duration;
};
struct cpufreq_pstates {
struct cpufreq_pstate *pstate;
int current;
int idle;
double time_enter;
double time_exit;
int max;
};
struct cpu_topology;
struct cpuidle_datas {
struct cpuidle_cstates *cstates;
struct cpufreq_pstates *pstates;
struct cpu_topology *topo;
struct cpuidle_datas *baseline;
int nrcpus;
};
enum modes {
TRACE = 0,
IMPORT
};
struct trace_buffer_settings {
unsigned int percpu_buffer_size;
unsigned int poll_interval;
};
struct program_options {
int mode;
int display;
unsigned int duration;
struct trace_buffer_settings tbs;
char *filename;
char *baseline_filename;
char *outfilename;
int verbose;
char *energy_model_filename;
char *report_type_name;
};
#define IDLE_DISPLAY 0x1
#define FREQUENCY_DISPLAY 0x2
#define WAKEUP_DISPLAY 0x4
struct cpuidle_datas *idlestat_load(const char *);
struct pstate_energy_info {
unsigned int speed;
unsigned int cluster_power;
unsigned int core_power;
double max_core_duration;
};
struct cstate_energy_info {
char cstate_name[NAMELEN];
unsigned int cluster_idle_power;
unsigned int core_idle_power;
double cluster_duration;
};
struct wakeup_energy_info {
unsigned int cluster_wakeup_energy;
unsigned int core_wakeup_energy;
};
enum energy_file_parse_state {
uninitialized = 0,
parsed_cluster_info,
parsing_cap_states,
parsing_c_states
};
struct cluster_energy_info {
unsigned int number_cap_states;
unsigned int number_c_states;
struct pstate_energy_info *p_energy;
struct cstate_energy_info *c_energy;
struct wakeup_energy_info wakeup_energy;
enum energy_file_parse_state state;
};
struct init_pstates {
int nrcpus;
unsigned int *freqs;
};
extern int store_data(double time, int state, int cpu, struct cpuidle_datas *datas);
extern struct cpuidle_cstates *build_cstate_info(int nrcpus);
extern struct cpufreq_pstates *build_pstate_info(int nrcpus);
extern int cpu_change_pstate(struct cpuidle_datas *datas, int cpu, unsigned int freq, double time);
extern int get_wakeup_irq(struct cpuidle_datas *datas, char *buffer);
#endif
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