power: add p-state driver compatibility

[dpdk.git] / lib / librte_power / rte_power.c

diff --git a/lib/librte_power/rte_power.c b/lib/librte_power/rte_power.c
index 208b791..a05fbef 100644 (file)
--- a/lib/librte_power/rte_power.c
+++ b/lib/librte_power/rte_power.c
@@ -7,6 +7,7 @@
 #include "rte_power.h"
 #include "power_acpi_cpufreq.h"
 #include "power_kvm_vm.h"
+#include "power_pstate_cpufreq.h"
 #include "power_common.h"
 
 enum power_management_env global_default_env = PM_ENV_NOT_SET;
@@ -56,6 +57,19 @@ rte_power_set_env(enum power_management_env env)
                rte_power_freq_enable_turbo = power_kvm_vm_enable_turbo;
                rte_power_freq_disable_turbo = power_kvm_vm_disable_turbo;
                rte_power_get_capabilities = power_kvm_vm_get_capabilities;
+       } else if (env == PM_ENV_PSTATE_CPUFREQ) {
+               rte_power_freqs = power_pstate_cpufreq_freqs;
+               rte_power_get_freq = power_pstate_cpufreq_get_freq;
+               rte_power_set_freq = power_pstate_cpufreq_set_freq;
+               rte_power_freq_up = power_pstate_cpufreq_freq_up;
+               rte_power_freq_down = power_pstate_cpufreq_freq_down;
+               rte_power_freq_min = power_pstate_cpufreq_freq_min;
+               rte_power_freq_max = power_pstate_cpufreq_freq_max;
+               rte_power_turbo_status = power_pstate_turbo_status;
+               rte_power_freq_enable_turbo = power_pstate_enable_turbo;
+               rte_power_freq_disable_turbo = power_pstate_disable_turbo;
+               rte_power_get_capabilities = power_pstate_get_capabilities;
+
        } else {
                RTE_LOG(ERR, POWER, "Invalid Power Management Environment(%d) set\n",
                                env);
@@ -64,7 +78,6 @@ rte_power_set_env(enum power_management_env env)
        }
        global_default_env = env;
        return 0;
-
 }
 
 void
@@ -84,21 +97,32 @@ rte_power_init(unsigned int lcore_id)
 {
        int ret = -1;
 
-       if (global_default_env == PM_ENV_ACPI_CPUFREQ) {
+       switch (global_default_env) {
+       case PM_ENV_ACPI_CPUFREQ:
                return power_acpi_cpufreq_init(lcore_id);
-       }
-       if (global_default_env == PM_ENV_KVM_VM) {
+       case PM_ENV_KVM_VM:
                return power_kvm_vm_init(lcore_id);
+       case PM_ENV_PSTATE_CPUFREQ:
+               return power_pstate_cpufreq_init(lcore_id);
+       default:
+               RTE_LOG(INFO, POWER, "Env isn't set yet!\n");
        }
+
        /* Auto detect Environment */
-       RTE_LOG(INFO, POWER, "Attempting to initialise ACPI cpufreq power "
-                       "management...\n");
+       RTE_LOG(INFO, POWER, "Attempting to initialise ACPI cpufreq power management...\n");
        ret = power_acpi_cpufreq_init(lcore_id);
        if (ret == 0) {
                rte_power_set_env(PM_ENV_ACPI_CPUFREQ);
                goto out;
        }
 
+       RTE_LOG(INFO, POWER, "Attempting to initialise PSTAT power management...\n");
+       ret = power_pstate_cpufreq_init(lcore_id);
+       if (ret == 0) {
+               rte_power_set_env(PM_ENV_PSTATE_CPUFREQ);
+               goto out;
+       }
+
        RTE_LOG(INFO, POWER, "Attempting to initialise VM power management...\n");
        ret = power_kvm_vm_init(lcore_id);
        if (ret == 0) {
@@ -114,13 +138,17 @@ out:
 int
 rte_power_exit(unsigned int lcore_id)
 {
-       if (global_default_env == PM_ENV_ACPI_CPUFREQ)
+       switch (global_default_env) {
+       case PM_ENV_ACPI_CPUFREQ:
                return power_acpi_cpufreq_exit(lcore_id);
-       if (global_default_env == PM_ENV_KVM_VM)
+       case PM_ENV_KVM_VM:
                return power_kvm_vm_exit(lcore_id);
+       case PM_ENV_PSTATE_CPUFREQ:
+               return power_pstate_cpufreq_exit(lcore_id);
+       default:
+               RTE_LOG(ERR, POWER, "Environment has not been set, unable to exit gracefully\n");
 
-       RTE_LOG(ERR, POWER, "Environment has not been set, unable to exit "
-                               "gracefully\n");
+       }
        return -1;
 
 }