1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
5 #include <rte_spinlock.h>
8 #include "power_acpi_cpufreq.h"
9 #include "power_kvm_vm.h"
10 #include "power_common.h"
12 enum power_management_env global_default_env = PM_ENV_NOT_SET;
14 static rte_spinlock_t global_env_cfg_lock = RTE_SPINLOCK_INITIALIZER;
16 /* function pointers */
17 rte_power_freqs_t rte_power_freqs = NULL;
18 rte_power_get_freq_t rte_power_get_freq = NULL;
19 rte_power_set_freq_t rte_power_set_freq = NULL;
20 rte_power_freq_change_t rte_power_freq_up = NULL;
21 rte_power_freq_change_t rte_power_freq_down = NULL;
22 rte_power_freq_change_t rte_power_freq_max = NULL;
23 rte_power_freq_change_t rte_power_freq_min = NULL;
24 rte_power_freq_change_t rte_power_turbo_status;
25 rte_power_freq_change_t rte_power_freq_enable_turbo;
26 rte_power_freq_change_t rte_power_freq_disable_turbo;
27 rte_power_get_capabilities_t rte_power_get_capabilities;
30 rte_power_set_env(enum power_management_env env)
32 rte_spinlock_lock(&global_env_cfg_lock);
34 if (global_default_env != PM_ENV_NOT_SET) {
35 rte_spinlock_unlock(&global_env_cfg_lock);
41 if (env == PM_ENV_ACPI_CPUFREQ) {
42 rte_power_freqs = power_acpi_cpufreq_freqs;
43 rte_power_get_freq = power_acpi_cpufreq_get_freq;
44 rte_power_set_freq = power_acpi_cpufreq_set_freq;
45 rte_power_freq_up = power_acpi_cpufreq_freq_up;
46 rte_power_freq_down = power_acpi_cpufreq_freq_down;
47 rte_power_freq_min = power_acpi_cpufreq_freq_min;
48 rte_power_freq_max = power_acpi_cpufreq_freq_max;
49 rte_power_turbo_status = power_acpi_turbo_status;
50 rte_power_freq_enable_turbo = power_acpi_enable_turbo;
51 rte_power_freq_disable_turbo = power_acpi_disable_turbo;
52 rte_power_get_capabilities = power_acpi_get_capabilities;
53 } else if (env == PM_ENV_KVM_VM) {
54 rte_power_freqs = power_kvm_vm_freqs;
55 rte_power_get_freq = power_kvm_vm_get_freq;
56 rte_power_set_freq = power_kvm_vm_set_freq;
57 rte_power_freq_up = power_kvm_vm_freq_up;
58 rte_power_freq_down = power_kvm_vm_freq_down;
59 rte_power_freq_min = power_kvm_vm_freq_min;
60 rte_power_freq_max = power_kvm_vm_freq_max;
61 rte_power_turbo_status = power_kvm_vm_turbo_status;
62 rte_power_freq_enable_turbo = power_kvm_vm_enable_turbo;
63 rte_power_freq_disable_turbo = power_kvm_vm_disable_turbo;
64 rte_power_get_capabilities = power_kvm_vm_get_capabilities;
66 RTE_LOG(ERR, POWER, "Invalid Power Management Environment(%d) set\n",
72 global_default_env = env;
74 global_default_env = PM_ENV_NOT_SET;
76 rte_spinlock_unlock(&global_env_cfg_lock);
82 rte_power_unset_env(void)
84 rte_spinlock_lock(&global_env_cfg_lock);
85 global_default_env = PM_ENV_NOT_SET;
86 rte_spinlock_unlock(&global_env_cfg_lock);
89 enum power_management_env
90 rte_power_get_env(void) {
91 return global_default_env;
95 rte_power_init(unsigned int lcore_id)
99 if (global_default_env == PM_ENV_ACPI_CPUFREQ) {
100 return power_acpi_cpufreq_init(lcore_id);
102 if (global_default_env == PM_ENV_KVM_VM) {
103 return power_kvm_vm_init(lcore_id);
105 /* Auto detect Environment */
106 RTE_LOG(INFO, POWER, "Attempting to initialise ACPI cpufreq power "
108 ret = power_acpi_cpufreq_init(lcore_id);
110 rte_power_set_env(PM_ENV_ACPI_CPUFREQ);
114 RTE_LOG(INFO, POWER, "Attempting to initialise VM power management...\n");
115 ret = power_kvm_vm_init(lcore_id);
117 rte_power_set_env(PM_ENV_KVM_VM);
120 RTE_LOG(ERR, POWER, "Unable to set Power Management Environment for lcore "
127 rte_power_exit(unsigned int lcore_id)
129 if (global_default_env == PM_ENV_ACPI_CPUFREQ)
130 return power_acpi_cpufreq_exit(lcore_id);
131 if (global_default_env == PM_ENV_KVM_VM)
132 return power_kvm_vm_exit(lcore_id);
134 RTE_LOG(ERR, POWER, "Environment has not been set, unable to exit "