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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>
This commit is contained in:
Dirk Brandewie 2013-05-07 08:20:28 -07:00 committed by Rafael J. Wysocki
parent ca182aee38
commit a73108d578
1 changed files with 0 additions and 49 deletions
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49
drivers/cpufreq/intel_pstate.c
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@ -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);