Commit 91a4cd4f authored Dec 17, 2013 by Dirk Brandewie Committed by Rafael J. Wysocki Dec 22, 2013

intel_pstate: Remove periodic P state boost

Remove the periodic P state boost. This code required for some corner
case benchmark tests. The calculation of the required P state was
incorrect/inaccurate and would not allow P state increase.

This was fixed by a combination of commits:
2134ed4d cpufreq / intel_pstate: Change to scale off of max P-state
d253d2a5 intel_pstate: Improve accuracy by not truncating until final result

References: https://bugzilla.kernel.org/show_bug.cgi?id=64271

Reported-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 007bea09

drivers/cpufreq/intel_pstate.c

+0 −11

Original line number	Diff line number	Diff line
		@@ -92,8 +92,6 @@ struct cpudata {
		struct vid_data vid;
		struct _pid pid;

		int min_pstate_count;

		u64 prev_aperf;
		u64 prev_mperf;
		int sample_ptr;
		@@ -617,15 +615,6 @@ static void intel_pstate_timer_func(unsigned long __data)

		intel_pstate_sample(cpu);
		intel_pstate_adjust_busy_pstate(cpu);

		if (cpu->pstate.current_pstate == cpu->pstate.min_pstate) {
		cpu->min_pstate_count++;
		if (!(cpu->min_pstate_count % 5)) {
		intel_pstate_set_pstate(cpu, cpu->pstate.max_pstate);
		}
		} else
		cpu->min_pstate_count = 0;

		intel_pstate_set_sample_time(cpu);
		}