/*
|
* (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc.
|
*
|
* Licensed under the terms of the GNU GPL License version 2.
|
*
|
*/
|
|
#ifndef __CPUIDLE_INFO_HW__
|
#define __CPUIDLE_INFO_HW__
|
|
#include <stdarg.h>
|
#include <time.h>
|
|
#include "idle_monitor/idle_monitors.h"
|
|
#define MONITORS_MAX 20
|
#define MONITOR_NAME_LEN 20
|
|
/* CSTATE_NAME_LEN is limited by header field width defined
|
* in cpupower-monitor.c. Header field width is defined to be
|
* sum of percent width and two spaces for padding.
|
*/
|
#ifdef __powerpc__
|
#define CSTATE_NAME_LEN 7
|
#else
|
#define CSTATE_NAME_LEN 5
|
#endif
|
#define CSTATE_DESC_LEN 60
|
|
extern int cpu_count;
|
|
/* Hard to define the right names ...: */
|
enum power_range_e {
|
RANGE_THREAD, /* Lowest in topology hierarcy, AMD: core, Intel: thread
|
kernel sysfs: cpu */
|
RANGE_CORE, /* AMD: unit, Intel: core, kernel_sysfs: core_id */
|
RANGE_PACKAGE, /* Package, processor socket */
|
RANGE_MACHINE, /* Machine, platform wide */
|
RANGE_MAX };
|
|
typedef struct cstate {
|
int id;
|
enum power_range_e range;
|
char name[CSTATE_NAME_LEN];
|
char desc[CSTATE_DESC_LEN];
|
|
/* either provide a percentage or a general count */
|
int (*get_count_percent)(unsigned int self_id, double *percent,
|
unsigned int cpu);
|
int (*get_count)(unsigned int self_id, unsigned long long *count,
|
unsigned int cpu);
|
} cstate_t;
|
|
struct cpuidle_monitor {
|
/* Name must not contain whitespaces */
|
char name[MONITOR_NAME_LEN];
|
int name_len;
|
int hw_states_num;
|
cstate_t *hw_states;
|
int (*start) (void);
|
int (*stop) (void);
|
struct cpuidle_monitor* (*do_register) (void);
|
void (*unregister)(void);
|
unsigned int overflow_s;
|
int needs_root;
|
};
|
|
extern long long timespec_diff_us(struct timespec start, struct timespec end);
|
|
#define print_overflow_err(mes, ov) \
|
{ \
|
fprintf(stderr, gettext("Measure took %u seconds, but registers could " \
|
"overflow at %u seconds, results " \
|
"could be inaccurate\n"), mes, ov); \
|
}
|
|
|
/* Taken over from x86info project sources -> return 0 on success */
|
#include <sched.h>
|
#include <sys/types.h>
|
#include <unistd.h>
|
static inline int bind_cpu(int cpu)
|
{
|
cpu_set_t set;
|
|
if (sched_getaffinity(getpid(), sizeof(set), &set) == 0) {
|
CPU_ZERO(&set);
|
CPU_SET(cpu, &set);
|
return sched_setaffinity(getpid(), sizeof(set), &set);
|
}
|
return 1;
|
}
|
|
#endif /* __CPUIDLE_INFO_HW__ */
|
