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Message-Id: <1683304a60f5188dc7f94e1a7797f12a4d1b47ab.1370581794.git.viresh.kumar@linaro.org>
Date: Fri, 7 Jun 2013 10:42:57 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: rjw@...k.pl
Cc: linaro-kernel@...ts.linaro.org, patches@...aro.org,
cpufreq@...r.kernel.org, linux-pm@...r.kernel.org,
linux-kernel@...r.kernel.org, robin.randhawa@....com,
Steve.Bannister@....com, Liviu.Dudau@....com,
charles.garcia-tobin@....com, arvind.chauhan@....com,
cw00.choi@...sung.com, Viresh Kumar <viresh.kumar@...aro.org>
Subject: [PATCH] cpufreq: stats: Remove CONFIG_CPU_FREQ_STAT_DETAILS
Current cpufreq stats has got three parts: time_in_state, total_trans and
trans_table.
trans_table was present under a separate macro's from others:
CONFIG_CPU_FREQ_STAT_DETAILS
The reason quoted for that was:
- trans_table goes against the traditional /sysfs rule of one value per
interface. It provides a whole bunch of value in a 2 dimensional matrix form.
I don't understand how necessary it is to keep trans_table inside a separate
macro. These are all cpufreq sysfs stats, probably it doesn't matter if its one
dimensional or two.
Lets remove CONFIG_CPU_FREQ_STAT_DETAILS and use CONFIG_CPU_FREQ_STAT only to
make code more cleaner (i.e. remove unnecessary macros).
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
Documentation/cpu-freq/cpufreq-stats.txt | 18 ++++--------------
arch/mips/configs/lemote2f_defconfig | 1 -
arch/powerpc/configs/ppc6xx_defconfig | 1 -
arch/sh/configs/sh7785lcr_32bit_defconfig | 1 -
drivers/cpufreq/Kconfig | 9 ---------
drivers/cpufreq/cpufreq_stats.c | 12 ------------
6 files changed, 4 insertions(+), 38 deletions(-)
diff --git a/Documentation/cpu-freq/cpufreq-stats.txt b/Documentation/cpu-freq/cpufreq-stats.txt
index fc64749..838f990 100644
--- a/Documentation/cpu-freq/cpufreq-stats.txt
+++ b/Documentation/cpu-freq/cpufreq-stats.txt
@@ -111,18 +111,8 @@ Config Main Menu
cpufreq-stats.
"CPU frequency translation statistics" (CONFIG_CPU_FREQ_STAT) provides the
-basic statistics which includes time_in_state and total_trans.
-
-"CPU frequency translation statistics details" (CONFIG_CPU_FREQ_STAT_DETAILS)
-provides fine grained cpufreq stats by trans_table. The reason for having a
-separate config option for trans_table is:
-- trans_table goes against the traditional /sysfs rule of one value per
- interface. It provides a whole bunch of value in a 2 dimensional matrix
- form.
-
-Once these two options are enabled and your CPU supports cpufrequency, you
-will be able to see the CPU frequency statistics in /sysfs.
-
-
-
+statistics which includes time_in_state, total_trans and fine grained cpufreq
+stats by trans_table.
+Once this option is enabled and your CPU supports cpufrequency, you will be able
+to see the CPU frequency statistics in /sysfs.
diff --git a/arch/mips/configs/lemote2f_defconfig b/arch/mips/configs/lemote2f_defconfig
index 343bebc..f9229e9 100644
--- a/arch/mips/configs/lemote2f_defconfig
+++ b/arch/mips/configs/lemote2f_defconfig
@@ -41,7 +41,6 @@ CONFIG_PM_RUNTIME=y
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_DEBUG=y
CONFIG_CPU_FREQ_STAT=m
-CONFIG_CPU_FREQ_STAT_DETAILS=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=m
diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig
index be1cb6e..bb7664c 100644
--- a/arch/powerpc/configs/ppc6xx_defconfig
+++ b/arch/powerpc/configs/ppc6xx_defconfig
@@ -58,7 +58,6 @@ CONFIG_GEF_SBC610=y
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_DEBUG=y
CONFIG_CPU_FREQ_STAT=m
-CONFIG_CPU_FREQ_STAT_DETAILS=y
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
diff --git a/arch/sh/configs/sh7785lcr_32bit_defconfig b/arch/sh/configs/sh7785lcr_32bit_defconfig
index 9bdcf72..7ce136d 100644
--- a/arch/sh/configs/sh7785lcr_32bit_defconfig
+++ b/arch/sh/configs/sh7785lcr_32bit_defconfig
@@ -25,7 +25,6 @@ CONFIG_SH_SH7785LCR=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_CPU_FREQ=y
-CONFIG_CPU_FREQ_STAT_DETAILS=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_SH_CPU_FREQ=y
CONFIG_HEARTBEAT=y
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index 534fcb8..f64ed8a 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -36,15 +36,6 @@ config CPU_FREQ_STAT
If in doubt, say N.
-config CPU_FREQ_STAT_DETAILS
- bool "CPU frequency translation statistics details"
- depends on CPU_FREQ_STAT
- help
- This will show detail CPU frequency translation table in sysfs file
- system.
-
- If in doubt, say N.
-
choice
prompt "Default CPUFreq governor"
default CPU_FREQ_DEFAULT_GOV_USERSPACE if ARM_SA1100_CPUFREQ || ARM_SA1110_CPUFREQ
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index fb65dec..c774005 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -33,9 +33,7 @@ struct cpufreq_stats {
unsigned int last_index;
u64 *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);
@@ -86,7 +84,6 @@ static ssize_t show_time_in_state(struct cpufreq_policy *policy, char *buf)
return len;
}
-#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf)
{
ssize_t len = 0;
@@ -131,7 +128,6 @@ static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf)
return len;
}
cpufreq_freq_attr_ro(trans_table);
-#endif
cpufreq_freq_attr_ro(total_trans);
cpufreq_freq_attr_ro(time_in_state);
@@ -139,9 +135,7 @@ cpufreq_freq_attr_ro(time_in_state);
static struct attribute *default_attrs[] = {
&total_trans.attr,
&time_in_state.attr,
-#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
&trans_table.attr,
-#endif
NULL
};
static struct attribute_group stats_attr_group = {
@@ -231,9 +225,7 @@ static int cpufreq_stats_create_table(struct cpufreq_policy *policy,
alloc_size = count * sizeof(int) + count * sizeof(u64);
-#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) {
@@ -242,9 +234,7 @@ static int cpufreq_stats_create_table(struct cpufreq_policy *policy,
}
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;
@@ -333,9 +323,7 @@ static int cpufreq_stat_notifier_trans(struct notifier_block *nb,
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;
--
1.7.12.rc2.18.g61b472e
--
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