diff options
author | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2013-03-10 13:24:54 +0000 |
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committer | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2013-03-10 13:24:54 +0000 |
commit | 860ef19acc1346cdd789dd29f2cce56e941e04e2 (patch) | |
tree | 832ad3651543af8d8b389554718972f65d7202aa /target/linux/xburst/patches-3.3/0010-cpufreq_stats-Support-runtime-changes-to-frequency-t.patch | |
parent | af6a073d72b3616d4c1fff596454f202416bc3e0 (diff) |
xburst: remove 3.3 support
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35934 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/xburst/patches-3.3/0010-cpufreq_stats-Support-runtime-changes-to-frequency-t.patch')
-rw-r--r-- | target/linux/xburst/patches-3.3/0010-cpufreq_stats-Support-runtime-changes-to-frequency-t.patch | 301 |
1 files changed, 0 insertions, 301 deletions
diff --git a/target/linux/xburst/patches-3.3/0010-cpufreq_stats-Support-runtime-changes-to-frequency-t.patch b/target/linux/xburst/patches-3.3/0010-cpufreq_stats-Support-runtime-changes-to-frequency-t.patch deleted file mode 100644 index 95803e313..000000000 --- a/target/linux/xburst/patches-3.3/0010-cpufreq_stats-Support-runtime-changes-to-frequency-t.patch +++ /dev/null @@ -1,301 +0,0 @@ -From ca40c7542f0cd0e0dfa074bd4ccefc04b8561427 Mon Sep 17 00:00:00 2001 -From: Maarten ter Huurne <maarten@treewalker.org> -Date: Tue, 2 Aug 2011 10:26:09 +0200 -Subject: [PATCH 10/21] cpufreq_stats: Support runtime changes to frequency - table. - ---- - drivers/cpufreq/cpufreq_stats.c | 161 ++++++++++++++++++++------------------- - 1 files changed, 83 insertions(+), 78 deletions(-) - ---- a/drivers/cpufreq/cpufreq_stats.c -+++ b/drivers/cpufreq/cpufreq_stats.c -@@ -20,6 +20,7 @@ - #include <linux/kobject.h> - #include <linux/spinlock.h> - #include <linux/notifier.h> -+#include <linux/string.h> - #include <asm/cputime.h> - - static spinlock_t cpufreq_stats_lock; -@@ -36,7 +37,7 @@ struct cpufreq_stats { - unsigned long long last_time; - unsigned int max_state; - unsigned int state_num; -- unsigned int last_index; -+ int last_index; - cputime64_t *time_in_state; - unsigned int *freq_table; - #ifdef CONFIG_CPU_FREQ_STAT_DETAILS -@@ -59,7 +60,7 @@ static int cpufreq_stats_update(unsigned - cur_time = get_jiffies_64(); - spin_lock(&cpufreq_stats_lock); - stat = per_cpu(cpufreq_stats_table, cpu); -- if (stat->time_in_state) -+ if (stat->time_in_state && stat->last_index != -1) - stat->time_in_state[stat->last_index] += - cur_time - stat->last_time; - stat->last_time = cur_time; -@@ -81,7 +82,7 @@ static ssize_t show_time_in_state(struct - ssize_t len = 0; - int i; - struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu); -- if (!stat) -+ if (!stat || !stat->time_in_state) - return 0; - cpufreq_stats_update(stat->cpu); - for (i = 0; i < stat->state_num; i++) { -@@ -99,7 +100,7 @@ static ssize_t show_trans_table(struct c - int i, j; - - struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu); -- if (!stat) -+ if (!stat || !stat->trans_table) - return 0; - cpufreq_stats_update(stat->cpu); - len += snprintf(buf + len, PAGE_SIZE - len, " From : To\n"); -@@ -158,63 +159,35 @@ static struct attribute_group stats_attr - 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; -+ if (stat->freq_table) -+ 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); -+ struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); -+ if (policy && policy->cpu == cpu) -+ sysfs_remove_group(&policy->kobj, &stats_attr_group); - 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, -+static int cpufreq_stats_update_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 i, j, count = 0; - 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; -+ struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, cpu); - - for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) { - unsigned int freq = table[i].frequency; -@@ -223,40 +196,73 @@ static int cpufreq_stats_create_table(st - count++; - } - -+ if (stat->max_state != count) { -+ stat->max_state = count; -+ kfree(stat->time_in_state); -+ stat->time_in_state = NULL; -+ } - 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); -- -+ if (stat->time_in_state) { -+ memset(stat->time_in_state, 0, alloc_size); -+ } else { -+ stat->time_in_state = kzalloc(alloc_size, GFP_KERNEL); -+ if (!stat->time_in_state) -+ return -ENOMEM; -+ stat->freq_table = (unsigned int *)( -+ stat->time_in_state + count); - #ifdef CONFIG_CPU_FREQ_STAT_DETAILS -- stat->trans_table = stat->freq_table + count; -+ 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; -+ if (stat->freq_table) { -+ 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); -+ return 0; -+} -+ -+static int cpufreq_stats_create_table(struct cpufreq_policy *policy, -+ struct cpufreq_frequency_table *table) -+{ -+ unsigned int ret = 0; -+ struct cpufreq_stats *stat; -+ struct cpufreq_policy *data; -+ unsigned int cpu = policy->cpu; -+ -+ 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_out; -+ } -+ ret = sysfs_create_group(&data->kobj, &stats_attr_group); - cpufreq_cpu_put(data); -+ if (ret) -+ goto error_out; -+ -+ stat->cpu = cpu; -+ per_cpu(cpufreq_stats_table, cpu) = stat; -+ - return 0; - error_out: -- cpufreq_cpu_put(data); --error_get_fail: - kfree(stat); - per_cpu(cpufreq_stats_table, cpu) = NULL; - return ret; -@@ -274,10 +280,12 @@ static int cpufreq_stat_notifier_policy( - table = cpufreq_frequency_get_table(cpu); - if (!table) - return 0; -- ret = cpufreq_stats_create_table(policy, table); -- if (ret) -- return ret; -- return 0; -+ if (!per_cpu(cpufreq_stats_table, cpu)) { -+ ret = cpufreq_stats_create_table(policy, table); -+ if (ret) -+ return ret; -+ } -+ return cpufreq_stats_update_table(policy, table); - } - - static int cpufreq_stat_notifier_trans(struct notifier_block *nb, -@@ -297,21 +305,23 @@ static int cpufreq_stat_notifier_trans(s - 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; - -+ if (new_index == -1) -+ return 0; -+ - spin_lock(&cpufreq_stats_lock); - stat->last_index = new_index; -+ if (old_index != -1) { - #ifdef CONFIG_CPU_FREQ_STAT_DETAILS -- stat->trans_table[old_index * stat->max_state + new_index]++; -+ if (stat->trans_table) -+ stat->trans_table[old_index * stat->max_state + -+ new_index]++; - #endif -- stat->total_trans++; -+ stat->total_trans++; -+ } - spin_unlock(&cpufreq_stats_lock); - return 0; - } -@@ -327,9 +337,6 @@ static int __cpuinit cpufreq_stat_cpu_ca - 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); -@@ -338,10 +345,9 @@ static int __cpuinit cpufreq_stat_cpu_ca - return NOTIFY_OK; - } - --/* priority=1 so this will get called before cpufreq_remove_dev */ --static struct notifier_block cpufreq_stat_cpu_notifier __refdata = { -+static struct notifier_block cpufreq_stat_cpu_notifier __refdata = -+{ - .notifier_call = cpufreq_stat_cpu_callback, -- .priority = 1, - }; - - static struct notifier_block notifier_policy_block = { -@@ -388,7 +394,6 @@ static void __exit cpufreq_stats_exit(vo - unregister_hotcpu_notifier(&cpufreq_stat_cpu_notifier); - for_each_online_cpu(cpu) { - cpufreq_stats_free_table(cpu); -- cpufreq_stats_free_sysfs(cpu); - } - } - |