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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /drivers/cpufreq/cpufreq_performance.c
Initial import
Diffstat (limited to 'drivers/cpufreq/cpufreq_performance.c')
-rw-r--r--drivers/cpufreq/cpufreq_performance.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq_performance.c b/drivers/cpufreq/cpufreq_performance.c
new file mode 100644
index 000000000..cf117deb3
--- /dev/null
+++ b/drivers/cpufreq/cpufreq_performance.c
@@ -0,0 +1,60 @@
+/*
+ * linux/drivers/cpufreq/cpufreq_performance.c
+ *
+ * Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
+ *
+ *
+ * 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.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/cpufreq.h>
+#include <linux/init.h>
+#include <linux/module.h>
+
+static int cpufreq_governor_performance(struct cpufreq_policy *policy,
+ unsigned int event)
+{
+ switch (event) {
+ case CPUFREQ_GOV_START:
+ case CPUFREQ_GOV_LIMITS:
+ pr_debug("setting to %u kHz because of event %u\n",
+ policy->max, event);
+ __cpufreq_driver_target(policy, policy->max,
+ CPUFREQ_RELATION_H);
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+#ifdef CONFIG_CPU_FREQ_GOV_PERFORMANCE_MODULE
+static
+#endif
+struct cpufreq_governor cpufreq_gov_performance = {
+ .name = "performance",
+ .governor = cpufreq_governor_performance,
+ .owner = THIS_MODULE,
+};
+
+static int __init cpufreq_gov_performance_init(void)
+{
+ return cpufreq_register_governor(&cpufreq_gov_performance);
+}
+
+static void __exit cpufreq_gov_performance_exit(void)
+{
+ cpufreq_unregister_governor(&cpufreq_gov_performance);
+}
+
+MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
+MODULE_DESCRIPTION("CPUfreq policy governor 'performance'");
+MODULE_LICENSE("GPL");
+
+fs_initcall(cpufreq_gov_performance_init);
+module_exit(cpufreq_gov_performance_exit);