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path: root/drivers/cpuidle/sysfs.c
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Diffstat (limited to 'drivers/cpuidle/sysfs.c')
-rw-r--r--drivers/cpuidle/sysfs.c71
1 files changed, 47 insertions, 24 deletions
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 2bb2683b493c..38ef770be90d 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -255,25 +255,6 @@ static ssize_t show_state_##_name(struct cpuidle_state *state, \
return sprintf(buf, "%u\n", state->_name);\
}
-#define define_store_state_ull_function(_name) \
-static ssize_t store_state_##_name(struct cpuidle_state *state, \
- struct cpuidle_state_usage *state_usage, \
- const char *buf, size_t size) \
-{ \
- unsigned long long value; \
- int err; \
- if (!capable(CAP_SYS_ADMIN)) \
- return -EPERM; \
- err = kstrtoull(buf, 0, &value); \
- if (err) \
- return err; \
- if (value) \
- state_usage->_name = 1; \
- else \
- state_usage->_name = 0; \
- return size; \
-}
-
#define define_show_state_ull_function(_name) \
static ssize_t show_state_##_name(struct cpuidle_state *state, \
struct cpuidle_state_usage *state_usage, \
@@ -292,18 +273,60 @@ static ssize_t show_state_##_name(struct cpuidle_state *state, \
return sprintf(buf, "%s\n", state->_name);\
}
-define_show_state_function(exit_latency)
-define_show_state_function(target_residency)
+#define define_show_state_time_function(_name) \
+static ssize_t show_state_##_name(struct cpuidle_state *state, \
+ struct cpuidle_state_usage *state_usage, \
+ char *buf) \
+{ \
+ return sprintf(buf, "%llu\n", ktime_to_us(state->_name##_ns)); \
+}
+
+define_show_state_time_function(exit_latency)
+define_show_state_time_function(target_residency)
define_show_state_function(power_usage)
define_show_state_ull_function(usage)
-define_show_state_ull_function(time)
define_show_state_str_function(name)
define_show_state_str_function(desc)
-define_show_state_ull_function(disable)
-define_store_state_ull_function(disable)
define_show_state_ull_function(above)
define_show_state_ull_function(below)
+static ssize_t show_state_time(struct cpuidle_state *state,
+ struct cpuidle_state_usage *state_usage,
+ char *buf)
+{
+ return sprintf(buf, "%llu\n", ktime_to_us(state_usage->time_ns));
+}
+
+static ssize_t show_state_disable(struct cpuidle_state *state,
+ struct cpuidle_state_usage *state_usage,
+ char *buf)
+{
+ return sprintf(buf, "%llu\n",
+ state_usage->disable & CPUIDLE_STATE_DISABLED_BY_USER);
+}
+
+static ssize_t store_state_disable(struct cpuidle_state *state,
+ struct cpuidle_state_usage *state_usage,
+ const char *buf, size_t size)
+{
+ unsigned int value;
+ int err;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ err = kstrtouint(buf, 0, &value);
+ if (err)
+ return err;
+
+ if (value)
+ state_usage->disable |= CPUIDLE_STATE_DISABLED_BY_USER;
+ else
+ state_usage->disable &= ~CPUIDLE_STATE_DISABLED_BY_USER;
+
+ return size;
+}
+
define_one_state_ro(name, show_state_name);
define_one_state_ro(desc, show_state_desc);
define_one_state_ro(latency, show_state_exit_latency);