1 files changed, 54 insertions, 0 deletions
diff --git a/tools/power/cpupower/lib/powercap.h b/tools/power/cpupower/lib/powercap.h
new file mode 100644
index 000000000000..c049c109f22f
--- /dev/null
+++ b/tools/power/cpupower/lib/powercap.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  (C) 2016 SUSE Software Solutions GmbH
+ *           Thomas Renninger <trenn@suse.de>
+ */
+
+#ifndef __CPUPOWER_RAPL_H__
+#define __CPUPOWER_RAPL_H__
+
+#define PATH_TO_POWERCAP "/sys/devices/virtual/powercap"
+#define PATH_TO_RAPL "/sys/devices/virtual/powercap/intel-rapl"
+#define PATH_TO_RAPL_CLASS "/sys/devices/virtual/powercap/intel-rapl"
+
+#define POWERCAP_MAX_CHILD_ZONES 10
+#define POWERCAP_MAX_TREE_DEPTH 10
+
+#define MAX_LINE_LEN 4096
+#define SYSFS_PATH_MAX 255
+
+#include <stdint.h>
+
+struct powercap_zone {
+	char name[MAX_LINE_LEN];
+	/*
+	 * sys_name relative to PATH_TO_POWERCAP,
+	 * do not forget the / in between
+	 */
+	char sys_name[SYSFS_PATH_MAX];
+	int tree_depth;
+	struct powercap_zone *parent;
+	struct powercap_zone *children[POWERCAP_MAX_CHILD_ZONES];
+	/* More possible caps or attributes to be added? */
+	uint32_t has_power_uw:1,
+		 has_energy_uj:1;
+
+};
+
+int powercap_walk_zones(struct powercap_zone *zone,
+			int (*f)(struct powercap_zone *zone));
+
+struct powercap_zone *powercap_init_zones(void);
+int powercap_get_enabled(int *mode);
+int powercap_set_enabled(int mode);
+int powercap_get_driver(char *driver, int buflen);
+
+int powercap_get_max_energy_range_uj(struct powercap_zone *zone, uint64_t *val);
+int powercap_get_energy_uj(struct powercap_zone *zone, uint64_t *val);
+int powercap_get_max_power_range_uw(struct powercap_zone *zone, uint64_t *val);
+int powercap_get_power_uw(struct powercap_zone *zone, uint64_t *val);
+int powercap_zone_get_enabled(struct powercap_zone *zone, int *mode);
+int powercap_zone_set_enabled(struct powercap_zone *zone, int mode);
+
+
+#endif /* __CPUPOWER_RAPL_H__ */