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authorDirk Brandewie <dirk.j.brandewie@intel.com>2013-05-07 19:20:28 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-05-12 16:04:17 +0400
commita73108d578559c83e35fa386a4058142a019b8d4 (patch)
tree170097454bf55c6b85a33580913354a8db2f2c81 /drivers/cpufreq
parentca182aee389f8026401510f4c63841cb02c820e8 (diff)
downloadlinux-a73108d578559c83e35fa386a4058142a019b8d4.tar.xz
cpufreq / intel_pstate: Remove idle mode PID
Remove dead code from the driver. Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/intel_pstate.c49
1 files changed, 0 insertions, 49 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index a7f1946b3452..b93e3851b5d3 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -81,10 +81,8 @@ struct cpudata {
struct pstate_adjust_policy *pstate_policy;
struct pstate_data pstate;
struct _pid pid;
- struct _pid idle_pid;
int min_pstate_count;
- int idle_mode;
u64 prev_aperf;
u64 prev_mperf;
@@ -199,19 +197,6 @@ static inline void intel_pstate_busy_pid_reset(struct cpudata *cpu)
0);
}
-static inline void intel_pstate_idle_pid_reset(struct cpudata *cpu)
-{
- pid_p_gain_set(&cpu->idle_pid, cpu->pstate_policy->p_gain_pct);
- pid_d_gain_set(&cpu->idle_pid, cpu->pstate_policy->d_gain_pct);
- pid_i_gain_set(&cpu->idle_pid, cpu->pstate_policy->i_gain_pct);
-
- pid_reset(&cpu->idle_pid,
- 75,
- 50,
- cpu->pstate_policy->deadband,
- 0);
-}
-
static inline void intel_pstate_reset_all_pid(void)
{
unsigned int cpu;
@@ -481,16 +466,6 @@ static inline void intel_pstate_set_sample_time(struct cpudata *cpu)
mod_timer_pinned(&cpu->timer, jiffies + delay);
}
-static inline void intel_pstate_idle_mode(struct cpudata *cpu)
-{
- cpu->idle_mode = 1;
-}
-
-static inline void intel_pstate_normal_mode(struct cpudata *cpu)
-{
- cpu->idle_mode = 0;
-}
-
static inline int intel_pstate_get_scaled_busy(struct cpudata *cpu)
{
int32_t busy_scaled;
@@ -523,29 +498,6 @@ static inline void intel_pstate_adjust_busy_pstate(struct cpudata *cpu)
intel_pstate_pstate_decrease(cpu, steps);
}
-static inline void intel_pstate_adjust_idle_pstate(struct cpudata *cpu)
-{
- int busy_scaled;
- struct _pid *pid;
- int ctl = 0;
- int steps;
-
- pid = &cpu->idle_pid;
-
- busy_scaled = intel_pstate_get_scaled_busy(cpu);
-
- ctl = pid_calc(pid, 100 - busy_scaled);
-
- steps = abs(ctl);
- if (ctl < 0)
- intel_pstate_pstate_decrease(cpu, steps);
- else
- intel_pstate_pstate_increase(cpu, steps);
-
- if (cpu->pstate.current_pstate == cpu->pstate.min_pstate)
- intel_pstate_normal_mode(cpu);
-}
-
static void intel_pstate_timer_func(unsigned long __data)
{
struct cpudata *cpu = (struct cpudata *) __data;
@@ -601,7 +553,6 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
(unsigned long)cpu;
cpu->timer.expires = jiffies + HZ/100;
intel_pstate_busy_pid_reset(cpu);
- intel_pstate_idle_pid_reset(cpu);
intel_pstate_sample(cpu);
intel_pstate_set_pstate(cpu, cpu->pstate.max_pstate);