[dpdk-dev,v4,4/9] examples/vm_power_mgr: add scale to medium freq fn
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Commit Message
Signed-off-by: Nemanja Marjanovic <nemanja.marjanovic@intel.com>
Signed-off-by: Rory Sexton <rory.sexton@intel.com>
Signed-off-by: David Hunt <david.hunt@intel.com>
---
examples/vm_power_manager/power_manager.c | 15 +++++++++++++++
examples/vm_power_manager/power_manager.h | 13 +++++++++++++
2 files changed, 28 insertions(+)
@@ -286,3 +286,18 @@ power_manager_disable_turbo_core(unsigned int core_num)
POWER_SCALE_CORE(disable_turbo, core_num, ret);
return ret;
}
+
+int
+power_manager_scale_core_med(unsigned int core_num)
+{
+ int ret = 0;
+
+ if (core_num >= POWER_MGR_MAX_CPUS)
+ return -1;
+ if (!(global_enabled_cpus & (1ULL << core_num)))
+ return -1;
+ rte_spinlock_lock(&global_core_freq_info[core_num].power_sl);
+ ret = rte_power_set_freq(core_num, 5);
+ rte_spinlock_unlock(&global_core_freq_info[core_num].power_sl);
+ return ret;
+}
@@ -231,6 +231,19 @@ int power_manager_disable_turbo_core(unsigned int core_num);
*/
uint32_t power_manager_get_current_frequency(unsigned core_num);
+/**
+ * Scale to medium frequency for the core specified by core_num.
+ * It is thread-safe.
+ *
+ * @param core_num
+ * The core number to change frequency
+ *
+ * @return
+ * - 1 on success.
+ * - 0 if frequency not changed.
+ * - Negative on error.
+ */
+int power_manager_scale_core_med(unsigned int core_num);
#ifdef __cplusplus
}