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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h |
Initial import
Diffstat (limited to 'tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h')
-rw-r--r-- | tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h new file mode 100644 index 000000000..9e43f3371 --- /dev/null +++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h @@ -0,0 +1,85 @@ +/* + * (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 +#define CSTATE_NAME_LEN 5 +#define CSTATE_DESC_LEN 60 + +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__ */ |