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Commit a73108d5 authored by Dirk Brandewie's avatar Dirk Brandewie Committed by Rafael J. Wysocki
Browse files

cpufreq / intel_pstate: Remove idle mode PID 



Remove dead code from the driver.

Signed-off-by: default avatarDirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent ca182aee

drivers/cpufreq/intel_pstate.c

+0 −49
Original line number Diff line number Diff line
@@ -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);