summaryrefslogtreecommitdiffstats
path: root/drivers/cpufreq
diff options
context:
space:
mode:
authorViresh Kumar <viresh.kumar@linaro.org>2014-03-10 14:53:33 +0530
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-03-12 01:06:00 +0100
commite0b3165ba521c6824b3e9f563f38a701dfa2d8e6 (patch)
treec933f6ecc241a38c2e56f1b166c8c66d1635540c /drivers/cpufreq
parente837f9b58b83a705c9c14b26c3ee29fd9870322e (diff)
downloadblackbird-op-linux-e0b3165ba521c6824b3e9f563f38a701dfa2d8e6.tar.gz
blackbird-op-linux-e0b3165ba521c6824b3e9f563f38a701dfa2d8e6.zip
cpufreq: add 'freq_table' in struct cpufreq_policy
freq table is not per CPU but per policy, so it makes more sense to keep it within struct cpufreq_policy instead of a per-cpu variable. This patch does it. Over that, there is no need to set policy->freq_table to NULL in ->exit(), as policy structure is going to be freed soon. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/acpi-cpufreq.c1
-rw-r--r--drivers/cpufreq/arm_big_little.c1
-rw-r--r--drivers/cpufreq/cpufreq.c7
-rw-r--r--drivers/cpufreq/e_powersaver.c1
-rw-r--r--drivers/cpufreq/freq_table.c46
-rw-r--r--drivers/cpufreq/ia64-acpi-cpufreq.c1
-rw-r--r--drivers/cpufreq/loongson2_cpufreq.c1
-rw-r--r--drivers/cpufreq/omap-cpufreq.c1
-rw-r--r--drivers/cpufreq/pasemi-cpufreq.c1
-rw-r--r--drivers/cpufreq/powernow-k6.c1
-rw-r--r--drivers/cpufreq/powernow-k7.c2
-rw-r--r--drivers/cpufreq/powernow-k8.c2
-rw-r--r--drivers/cpufreq/ppc-corenet-cpufreq.c1
-rw-r--r--drivers/cpufreq/sh-cpufreq.c1
-rw-r--r--drivers/cpufreq/sparc-us2e-cpufreq.c4
-rw-r--r--drivers/cpufreq/sparc-us3-cpufreq.c4
-rw-r--r--drivers/cpufreq/speedstep-centrino.c2
-rw-r--r--drivers/cpufreq/tegra-cpufreq.c1
18 files changed, 16 insertions, 62 deletions
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 18448a7e9f86..822ca03a87f7 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -855,7 +855,6 @@ static int acpi_cpufreq_cpu_exit(struct cpufreq_policy *policy)
pr_debug("acpi_cpufreq_cpu_exit\n");
if (data) {
- cpufreq_frequency_table_put_attr(policy->cpu);
per_cpu(acfreq_data, policy->cpu) = NULL;
acpi_processor_unregister_performance(data->acpi_data,
policy->cpu);
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 72f87e9317e3..3d8707848035 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -478,7 +478,6 @@ static int bL_cpufreq_exit(struct cpufreq_policy *policy)
return -ENODEV;
}
- cpufreq_frequency_table_put_attr(policy->cpu);
put_cluster_clk_and_freq_table(cpu_dev);
dev_dbg(cpu_dev, "%s: Exited, cpu: %d\n", __func__, policy->cpu);
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 746f70875078..dddbefb857c9 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -191,6 +191,12 @@ unsigned int cpufreq_generic_get(unsigned int cpu)
}
EXPORT_SYMBOL_GPL(cpufreq_generic_get);
+/* Only for cpufreq core internal use */
+struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu)
+{
+ return per_cpu(cpufreq_cpu_data, cpu);
+}
+
struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu)
{
struct cpufreq_policy *policy = NULL;
@@ -1031,7 +1037,6 @@ static void update_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu)
up_write(&policy->rwsem);
- cpufreq_frequency_table_update_policy_cpu(policy);
blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
CPUFREQ_UPDATE_POLICY_CPU, policy);
}
diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c
index 9012b8bb6b64..a0d2a423cea9 100644
--- a/drivers/cpufreq/e_powersaver.c
+++ b/drivers/cpufreq/e_powersaver.c
@@ -382,7 +382,6 @@ static int eps_cpu_exit(struct cpufreq_policy *policy)
unsigned int cpu = policy->cpu;
/* Bye */
- cpufreq_frequency_table_put_attr(policy->cpu);
kfree(eps_cpu[cpu]);
eps_cpu[cpu] = NULL;
return 0;
diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c
index 8e54f97899ba..65a477075b3f 100644
--- a/drivers/cpufreq/freq_table.c
+++ b/drivers/cpufreq/freq_table.c
@@ -91,8 +91,8 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
EXPORT_SYMBOL_GPL(cpufreq_frequency_table_verify);
/*
- * Generic routine to verify policy & frequency table, requires driver to call
- * cpufreq_frequency_table_get_attr() prior to it.
+ * Generic routine to verify policy & frequency table, requires driver to set
+ * policy->freq_table prior to it.
*/
int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy)
{
@@ -203,8 +203,6 @@ int cpufreq_frequency_table_get_index(struct cpufreq_policy *policy,
}
EXPORT_SYMBOL_GPL(cpufreq_frequency_table_get_index);
-static DEFINE_PER_CPU(struct cpufreq_frequency_table *, cpufreq_show_table);
-
/**
* show_available_freqs - show available frequencies for the specified CPU
*/
@@ -212,15 +210,12 @@ static ssize_t show_available_freqs(struct cpufreq_policy *policy, char *buf,
bool show_boost)
{
unsigned int i = 0;
- unsigned int cpu = policy->cpu;
ssize_t count = 0;
- struct cpufreq_frequency_table *table;
+ struct cpufreq_frequency_table *table = policy->freq_table;
- if (!per_cpu(cpufreq_show_table, cpu))
+ if (!table)
return -ENODEV;
- table = per_cpu(cpufreq_show_table, cpu);
-
for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
if (table[i].frequency == CPUFREQ_ENTRY_INVALID)
continue;
@@ -283,49 +278,24 @@ struct freq_attr *cpufreq_generic_attr[] = {
};
EXPORT_SYMBOL_GPL(cpufreq_generic_attr);
-/*
- * if you use these, you must assure that the frequency table is valid
- * all the time between get_attr and put_attr!
- */
-void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table,
- unsigned int cpu)
-{
- pr_debug("setting show_table for cpu %u to %p\n", cpu, table);
- per_cpu(cpufreq_show_table, cpu) = table;
-}
-EXPORT_SYMBOL_GPL(cpufreq_frequency_table_get_attr);
-
-void cpufreq_frequency_table_put_attr(unsigned int cpu)
-{
- pr_debug("clearing show_table for cpu %u\n", cpu);
- per_cpu(cpufreq_show_table, cpu) = NULL;
-}
-EXPORT_SYMBOL_GPL(cpufreq_frequency_table_put_attr);
-
int cpufreq_table_validate_and_show(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table)
{
int ret = cpufreq_frequency_table_cpuinfo(policy, table);
if (!ret)
- cpufreq_frequency_table_get_attr(table, policy->cpu);
+ policy->freq_table = table;
return ret;
}
EXPORT_SYMBOL_GPL(cpufreq_table_validate_and_show);
-void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy)
-{
- pr_debug("Updating show_table for new_cpu %u from last_cpu %u\n",
- policy->cpu, policy->last_cpu);
- per_cpu(cpufreq_show_table, policy->cpu) = per_cpu(cpufreq_show_table,
- policy->last_cpu);
- per_cpu(cpufreq_show_table, policy->last_cpu) = NULL;
-}
+struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu);
struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu)
{
- return per_cpu(cpufreq_show_table, cpu);
+ struct cpufreq_policy *policy = cpufreq_cpu_get_raw(cpu);
+ return policy ? policy->freq_table : NULL;
}
EXPORT_SYMBOL_GPL(cpufreq_frequency_get_table);
diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
index 53c6ac637e10..a22b5d182e0e 100644
--- a/drivers/cpufreq/ia64-acpi-cpufreq.c
+++ b/drivers/cpufreq/ia64-acpi-cpufreq.c
@@ -332,7 +332,6 @@ acpi_cpufreq_cpu_exit (
pr_debug("acpi_cpufreq_cpu_exit\n");
if (data) {
- cpufreq_frequency_table_put_attr(policy->cpu);
acpi_io_data[policy->cpu] = NULL;
acpi_processor_unregister_performance(&data->acpi_data,
policy->cpu);
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index b6581abc9207..a3588d61d933 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -104,7 +104,6 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy)
static int loongson2_cpufreq_exit(struct cpufreq_policy *policy)
{
- cpufreq_frequency_table_put_attr(policy->cpu);
clk_put(policy->clk);
return 0;
}
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index 590f5b66d181..5f69c9aa703c 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -143,7 +143,6 @@ fail:
static int omap_cpu_exit(struct cpufreq_policy *policy)
{
- cpufreq_frequency_table_put_attr(policy->cpu);
freq_table_free();
clk_put(policy->clk);
return 0;
diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index 0426008380d8..6a2b7d3e85a7 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -234,7 +234,6 @@ static int pas_cpufreq_cpu_exit(struct cpufreq_policy *policy)
if (sdcpwr_mapbase)
iounmap(sdcpwr_mapbase);
- cpufreq_frequency_table_put_attr(policy->cpu);
return 0;
}
diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c
index b9a444e358b5..ce27e6c26c94 100644
--- a/drivers/cpufreq/powernow-k6.c
+++ b/drivers/cpufreq/powernow-k6.c
@@ -231,7 +231,6 @@ static int powernow_k6_cpu_exit(struct cpufreq_policy *policy)
if (i == max_multiplier)
powernow_k6_target(policy, i);
}
- cpufreq_frequency_table_put_attr(policy->cpu);
return 0;
}
diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c
index 946708a1d745..0e68e0275621 100644
--- a/drivers/cpufreq/powernow-k7.c
+++ b/drivers/cpufreq/powernow-k7.c
@@ -664,8 +664,6 @@ static int powernow_cpu_init(struct cpufreq_policy *policy)
static int powernow_cpu_exit(struct cpufreq_policy *policy)
{
- cpufreq_frequency_table_put_attr(policy->cpu);
-
#ifdef CONFIG_X86_POWERNOW_K7_ACPI
if (acpi_processor_perf) {
acpi_processor_unregister_performance(acpi_processor_perf, 0);
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 6684e0342792..27eb2be44de5 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -1164,8 +1164,6 @@ static int powernowk8_cpu_exit(struct cpufreq_policy *pol)
powernow_k8_cpu_exit_acpi(data);
- cpufreq_frequency_table_put_attr(pol->cpu);
-
kfree(data->powernow_table);
kfree(data);
for_each_cpu(cpu, pol->cpus)
diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c
index 051000f44ca2..037949d575bd 100644
--- a/drivers/cpufreq/ppc-corenet-cpufreq.c
+++ b/drivers/cpufreq/ppc-corenet-cpufreq.c
@@ -228,7 +228,6 @@ static int __exit corenet_cpufreq_cpu_exit(struct cpufreq_policy *policy)
struct cpu_data *data = per_cpu(cpu_data, policy->cpu);
unsigned int cpu;
- cpufreq_frequency_table_put_attr(policy->cpu);
of_node_put(data->parent);
kfree(data->table);
kfree(data);
diff --git a/drivers/cpufreq/sh-cpufreq.c b/drivers/cpufreq/sh-cpufreq.c
index 387af12503a6..696170ebd3a3 100644
--- a/drivers/cpufreq/sh-cpufreq.c
+++ b/drivers/cpufreq/sh-cpufreq.c
@@ -143,7 +143,6 @@ static int sh_cpufreq_cpu_exit(struct cpufreq_policy *policy)
unsigned int cpu = policy->cpu;
struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu);
- cpufreq_frequency_table_put_attr(cpu);
clk_put(cpuclk);
return 0;
diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c
index 62aa23e219d4..b73feeb666f9 100644
--- a/drivers/cpufreq/sparc-us2e-cpufreq.c
+++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
@@ -301,10 +301,8 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
static int us2e_freq_cpu_exit(struct cpufreq_policy *policy)
{
- if (cpufreq_us2e_driver) {
- cpufreq_frequency_table_put_attr(policy->cpu);
+ if (cpufreq_us2e_driver)
us2e_freq_target(policy, 0);
- }
return 0;
}
diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
index 724ffbd7105d..9bb42ba50efa 100644
--- a/drivers/cpufreq/sparc-us3-cpufreq.c
+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
@@ -156,10 +156,8 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
{
- if (cpufreq_us3_driver) {
- cpufreq_frequency_table_put_attr(policy->cpu);
+ if (cpufreq_us3_driver)
us3_freq_target(policy, 0);
- }
return 0;
}
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index 4e1daca5ce3b..6723f0390f20 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -406,8 +406,6 @@ static int centrino_cpu_exit(struct cpufreq_policy *policy)
if (!per_cpu(centrino_model, cpu))
return -ENODEV;
- cpufreq_frequency_table_put_attr(cpu);
-
per_cpu(centrino_model, cpu) = NULL;
return 0;
diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index bcfed7761029..63f00598a251 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -136,7 +136,6 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
static int tegra_cpu_exit(struct cpufreq_policy *policy)
{
- cpufreq_frequency_table_put_attr(policy->cpu);
clk_disable_unprepare(cpu_clk);
clk_disable_unprepare(emc_clk);
return 0;
OpenPOWER on IntegriCloud