1 files changed, 0 insertions, 426 deletions

diff --git a/ANDROID_3.4.5/drivers/cpufreq/cpufreq_stats.c b/ANDROID_3.4.5/drivers/cpufreq/cpufreq_stats.c
deleted file mode 100644
index 72f0093a..00000000
--- a/ANDROID_3.4.5/drivers/cpufreq/cpufreq_stats.c
+++ /dev/null
@@ -1,426 +0,0 @@
-/*
- *  drivers/cpufreq/cpufreq_stats.c
- *
- *  Copyright (C) 2003-2004 Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>.
- *  (C) 2004 Zou Nan hai <nanhai.zou@intel.com>.
- *
- * 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.
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/cpu.h>
-#include <linux/sysfs.h>
-#include <linux/cpufreq.h>
-#include <linux/module.h>
-#include <linux/jiffies.h>
-#include <linux/percpu.h>
-#include <linux/kobject.h>
-#include <linux/spinlock.h>
-#include <linux/notifier.h>
-#include <asm/cputime.h>
-
-static spinlock_t cpufreq_stats_lock;
-
-#define CPUFREQ_STATDEVICE_ATTR(_name, _mode, _show) \
-static struct freq_attr _attr_##_name = {\
-	.attr = {.name = __stringify(_name), .mode = _mode, }, \
-	.show = _show,\
-};
-
-struct cpufreq_stats {
-	unsigned int cpu;
-	unsigned int total_trans;
-	unsigned long long  last_time;
-	unsigned int max_state;
-	unsigned int state_num;
-	unsigned int last_index;
-	cputime64_t *time_in_state;
-	unsigned int *freq_table;
-#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
-	unsigned int *trans_table;
-#endif
-};
-
-static DEFINE_PER_CPU(struct cpufreq_stats *, cpufreq_stats_table);
-
-struct cpufreq_stats_attribute {
-	struct attribute attr;
-	ssize_t(*show) (struct cpufreq_stats *, char *);
-};
-
-static int cpufreq_stats_update(unsigned int cpu)
-{
-	struct cpufreq_stats *stat;
-	unsigned long long cur_time;
-
-	cur_time = get_jiffies_64();
-	spin_lock(&cpufreq_stats_lock);
-	stat = per_cpu(cpufreq_stats_table, cpu);
-	if (stat->time_in_state)
-		stat->time_in_state[stat->last_index] +=
-			cur_time - stat->last_time;
-	stat->last_time = cur_time;
-	spin_unlock(&cpufreq_stats_lock);
-	return 0;
-}
-
-static ssize_t show_total_trans(struct cpufreq_policy *policy, char *buf)
-{
-	struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu);
-	if (!stat)
-		return 0;
-	return sprintf(buf, "%d\n",
-			per_cpu(cpufreq_stats_table, stat->cpu)->total_trans);
-}
-
-static ssize_t show_time_in_state(struct cpufreq_policy *policy, char *buf)
-{
-	ssize_t len = 0;
-	int i;
-	struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu);
-	if (!stat)
-		return 0;
-	cpufreq_stats_update(stat->cpu);
-	for (i = 0; i < stat->state_num; i++) {
-		len += sprintf(buf + len, "%u %llu\n", stat->freq_table[i],
-			(unsigned long long)
-			cputime64_to_clock_t(stat->time_in_state[i]));
-	}
-	return len;
-}
-
-#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
-static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf)
-{
-	ssize_t len = 0;
-	int i, j;
-
-	struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu);
-	if (!stat)
-		return 0;
-	cpufreq_stats_update(stat->cpu);
-	len += snprintf(buf + len, PAGE_SIZE - len, "   From  :    To\n");
-	len += snprintf(buf + len, PAGE_SIZE - len, "         : ");
-	for (i = 0; i < stat->state_num; i++) {
-		if (len >= PAGE_SIZE)
-			break;
-		len += snprintf(buf + len, PAGE_SIZE - len, "%9u ",
-				stat->freq_table[i]);
-	}
-	if (len >= PAGE_SIZE)
-		return PAGE_SIZE;
-
-	len += snprintf(buf + len, PAGE_SIZE - len, "\n");
-
-	for (i = 0; i < stat->state_num; i++) {
-		if (len >= PAGE_SIZE)
-			break;
-
-		len += snprintf(buf + len, PAGE_SIZE - len, "%9u: ",
-				stat->freq_table[i]);
-
-		for (j = 0; j < stat->state_num; j++)   {
-			if (len >= PAGE_SIZE)
-				break;
-			len += snprintf(buf + len, PAGE_SIZE - len, "%9u ",
-					stat->trans_table[i*stat->max_state+j]);
-		}
-		if (len >= PAGE_SIZE)
-			break;
-		len += snprintf(buf + len, PAGE_SIZE - len, "\n");
-	}
-	if (len >= PAGE_SIZE)
-		return PAGE_SIZE;
-	return len;
-}
-CPUFREQ_STATDEVICE_ATTR(trans_table, 0444, show_trans_table);
-#endif
-
-CPUFREQ_STATDEVICE_ATTR(total_trans, 0444, show_total_trans);
-CPUFREQ_STATDEVICE_ATTR(time_in_state, 0444, show_time_in_state);
-
-static struct attribute *default_attrs[] = {
-	&_attr_total_trans.attr,
-	&_attr_time_in_state.attr,
-#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
-	&_attr_trans_table.attr,
-#endif
-	NULL
-};
-static struct attribute_group stats_attr_group = {
-	.attrs = default_attrs,
-	.name = "stats"
-};
-
-static int freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq)
-{
-	int index;
-	for (index = 0; index < stat->max_state; index++)
-		if (stat->freq_table[index] == freq)
-			return index;
-	return -1;
-}
-
-/* should be called late in the CPU removal sequence so that the stats
- * memory is still available in case someone tries to use it.
- */
-static void cpufreq_stats_free_table(unsigned int cpu)
-{
-	struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, cpu);
-	if (stat) {
-		kfree(stat->time_in_state);
-		kfree(stat);
-	}
-	per_cpu(cpufreq_stats_table, cpu) = NULL;
-}
-
-/* must be called early in the CPU removal sequence (before
- * cpufreq_remove_dev) so that policy is still valid.
- */
-static void cpufreq_stats_free_sysfs(unsigned int cpu)
-{
-	struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
-	if (policy && policy->cpu == cpu)
-		sysfs_remove_group(&policy->kobj, &stats_attr_group);
-	if (policy)
-		cpufreq_cpu_put(policy);
-}
-
-static int cpufreq_stats_create_table(struct cpufreq_policy *policy,
-		struct cpufreq_frequency_table *table)
-{
-	unsigned int i, j, count = 0, ret = 0;
-	struct cpufreq_stats *stat;
-	struct cpufreq_policy *data;
-	unsigned int alloc_size;
-	unsigned int cpu = policy->cpu;
-	if (per_cpu(cpufreq_stats_table, cpu))
-		return -EBUSY;
-	stat = kzalloc(sizeof(struct cpufreq_stats), GFP_KERNEL);
-	if ((stat) == NULL)
-		return -ENOMEM;
-
-	data = cpufreq_cpu_get(cpu);
-	if (data == NULL) {
-		ret = -EINVAL;
-		goto error_get_fail;
-	}
-
-	ret = sysfs_create_group(&data->kobj, &stats_attr_group);
-	if (ret)
-		goto error_out;
-
-	stat->cpu = cpu;
-	per_cpu(cpufreq_stats_table, cpu) = stat;
-
-	for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
-		unsigned int freq = table[i].frequency;
-		if (freq == CPUFREQ_ENTRY_INVALID)
-			continue;
-		count++;
-	}
-
-	alloc_size = count * sizeof(int) + count * sizeof(cputime64_t);
-
-#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
-	alloc_size += count * count * sizeof(int);
-#endif
-	stat->max_state = count;
-	stat->time_in_state = kzalloc(alloc_size, GFP_KERNEL);
-	if (!stat->time_in_state) {
-		ret = -ENOMEM;
-		goto error_out;
-	}
-	stat->freq_table = (unsigned int *)(stat->time_in_state + count);
-
-#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
-	stat->trans_table = stat->freq_table + count;
-#endif
-	j = 0;
-	for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
-		unsigned int freq = table[i].frequency;
-		if (freq == CPUFREQ_ENTRY_INVALID)
-			continue;
-		if (freq_table_get_index(stat, freq) == -1)
-			stat->freq_table[j++] = freq;
-	}
-	stat->state_num = j;
-	spin_lock(&cpufreq_stats_lock);
-	stat->last_time = get_jiffies_64();
-	stat->last_index = freq_table_get_index(stat, policy->cur);
-	spin_unlock(&cpufreq_stats_lock);
-	cpufreq_cpu_put(data);
-	return 0;
-error_out:
-	cpufreq_cpu_put(data);
-error_get_fail:
-	kfree(stat);
-	per_cpu(cpufreq_stats_table, cpu) = NULL;
-	return ret;
-}
-
-static int cpufreq_stat_notifier_policy(struct notifier_block *nb,
-		unsigned long val, void *data)
-{
-	int ret;
-	struct cpufreq_policy *policy = data;
-	struct cpufreq_frequency_table *table;
-	unsigned int cpu = policy->cpu;
-	if (val != CPUFREQ_NOTIFY)
-		return 0;
-	table = cpufreq_frequency_get_table(cpu);
-	if (!table)
-		return 0;
-	ret = cpufreq_stats_create_table(policy, table);
-	if (ret)
-		return ret;
-	return 0;
-}
-
-static int cpufreq_stat_notifier_trans(struct notifier_block *nb,
-		unsigned long val, void *data)
-{
-	struct cpufreq_freqs *freq = data;
-	struct cpufreq_stats *stat;
-	int old_index, new_index;
-
-	if (val != CPUFREQ_POSTCHANGE)
-		return 0;
-
-	stat = per_cpu(cpufreq_stats_table, freq->cpu);
-	if (!stat)
-		return 0;
-
-	old_index = stat->last_index;
-	new_index = freq_table_get_index(stat, freq->new);
-
-	/* We can't do stat->time_in_state[-1]= .. */
-	if (old_index == -1 || new_index == -1)
-		return 0;
-
-	cpufreq_stats_update(freq->cpu);
-
-	if (old_index == new_index)
-		return 0;
-
-	spin_lock(&cpufreq_stats_lock);
-	stat->last_index = new_index;
-#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
-	stat->trans_table[old_index * stat->max_state + new_index]++;
-#endif
-	stat->total_trans++;
-	spin_unlock(&cpufreq_stats_lock);
-	return 0;
-}
-
-static int cpufreq_stats_create_table_cpu(unsigned int cpu)
-{
-	struct cpufreq_policy *policy;
-	struct cpufreq_frequency_table *table;
-	int ret = -ENODEV;
-
-	policy = cpufreq_cpu_get(cpu);
-	if (!policy)
-		return -ENODEV;
-
-	table = cpufreq_frequency_get_table(cpu);
-	if (!table)
-		goto out;
-
-	ret = cpufreq_stats_create_table(policy, table);
-
-out:
-	cpufreq_cpu_put(policy);
-	return ret;
-}
-
-static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb,
-					       unsigned long action,
-					       void *hcpu)
-{
-	unsigned int cpu = (unsigned long)hcpu;
-
-	switch (action) {
-	case CPU_ONLINE:
-	case CPU_ONLINE_FROZEN:
-		cpufreq_update_policy(cpu);
-		break;
-	case CPU_DOWN_PREPARE:
-		cpufreq_stats_free_sysfs(cpu);
-		break;
-	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
-		cpufreq_stats_free_table(cpu);
-		break;
-	case CPU_DOWN_FAILED:
-	case CPU_DOWN_FAILED_FROZEN:
-		cpufreq_stats_create_table_cpu(cpu);
-		break;
-	}
-	return NOTIFY_OK;
-}
-
-/* priority=1 so this will get called before cpufreq_remove_dev */
-static struct notifier_block cpufreq_stat_cpu_notifier __refdata = {
-	.notifier_call = cpufreq_stat_cpu_callback,
-	.priority = 1,
-};
-
-static struct notifier_block notifier_policy_block = {
-	.notifier_call = cpufreq_stat_notifier_policy
-};
-
-static struct notifier_block notifier_trans_block = {
-	.notifier_call = cpufreq_stat_notifier_trans
-};
-
-static int __init cpufreq_stats_init(void)
-{
-	int ret;
-	unsigned int cpu;
-
-	spin_lock_init(&cpufreq_stats_lock);
-	ret = cpufreq_register_notifier(&notifier_policy_block,
-				CPUFREQ_POLICY_NOTIFIER);
-	if (ret)
-		return ret;
-
-	ret = cpufreq_register_notifier(&notifier_trans_block,
-				CPUFREQ_TRANSITION_NOTIFIER);
-	if (ret) {
-		cpufreq_unregister_notifier(&notifier_policy_block,
-				CPUFREQ_POLICY_NOTIFIER);
-		return ret;
-	}
-
-	register_hotcpu_notifier(&cpufreq_stat_cpu_notifier);
-	for_each_online_cpu(cpu) {
-		cpufreq_update_policy(cpu);
-	}
-	return 0;
-}
-static void __exit cpufreq_stats_exit(void)
-{
-	unsigned int cpu;
-
-	cpufreq_unregister_notifier(&notifier_policy_block,
-			CPUFREQ_POLICY_NOTIFIER);
-	cpufreq_unregister_notifier(&notifier_trans_block,
-			CPUFREQ_TRANSITION_NOTIFIER);
-	unregister_hotcpu_notifier(&cpufreq_stat_cpu_notifier);
-	for_each_online_cpu(cpu) {
-		cpufreq_stats_free_table(cpu);
-		cpufreq_stats_free_sysfs(cpu);
-	}
-}
-
-MODULE_AUTHOR("Zou Nan hai <nanhai.zou@intel.com>");
-MODULE_DESCRIPTION("'cpufreq_stats' - A driver to export cpufreq stats "
-				"through sysfs filesystem");
-MODULE_LICENSE("GPL");
-
-module_init(cpufreq_stats_init);
-module_exit(cpufreq_stats_exit);