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/* rapl_interface.h: rapl interface for power top
*
* Copyright (C) 2012 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*
* Author Name <Srinivas.Pandruvada@linux.intel.com>
*
*/
#ifndef RAPL_INTERFACE_H
#define RAPL_INTERFACE_H
class c_rapl_interface
{
private:
static const int def_sampling_interval = 1; //In seconds
bool powercap_sysfs_present;
string powercap_core_path;
string powercap_uncore_path;
string powercap_dram_path;
unsigned char rapl_domains;
int first_cpu;
double power_units;
double energy_status_units;
double time_units;
int read_msr(int cpu, unsigned int idx, uint64_t *val);
int write_msr(int cpu, unsigned int idx, uint64_t val);
protected:
int measurment_interval;
double last_pkg_energy_status;
double last_dram_energy_status;
double last_pp0_energy_status;
double last_pp1_energy_status;
public:
c_rapl_interface(const char *dev_name = "package-0", int cpu = 0);
int get_rapl_power_unit(uint64_t *value);
double get_power_unit();
double get_energy_status_unit();
double get_time_unit();
int get_pkg_energy_status(double *status);
int get_pkg_power_info(double *thermal_spec_power,
double *max_power, double *min_power, double *max_time_window);
int get_pkg_power_limit(uint64_t *value);
int set_pkg_power_limit(uint64_t value);
int get_dram_energy_status(double *status);
int get_dram_power_info(double *thermal_spec_power,
double *max_power, double *min_power, double *max_time_window);
int get_dram_power_limit(uint64_t *value);
int set_dram_power_limit(uint64_t value);
int get_pp0_energy_status(double *status);
int get_pp0_power_limit(uint64_t *value);
int set_pp0_power_limit(uint64_t value);
int get_pp0_power_policy(unsigned int *pp0_power_policy);
int get_pp1_energy_status(double *status);
int get_pp1_power_limit(uint64_t *value);
int set_pp1_power_limit(uint64_t value);
int get_pp1_power_policy(unsigned int *pp1_power_policy);
bool pkg_domain_present();
bool dram_domain_present();
bool pp0_domain_present();
bool pp1_domain_present();
void rapl_measure_energy();
};
#endif
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