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Commit 36e8abf3 authored by Dave Jones's avatar Dave Jones
Browse files

[CPUFREQ] Prevent p4-clockmod from auto-binding to the ondemand governor. 



The latency of p4-clockmod sucks so hard that scaling on a regular
basis with ondemand is a really bad idea.

Signed-off-by: default avatarMatthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: default avatarDave Jones <davej@redhat.com>
parent eb3092ce

arch/x86/kernel/cpu/cpufreq/p4-clockmod.c

+4 −1
Original line number Diff line number Diff line
@@ -246,7 +246,10 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) 
	cpufreq_frequency_table_get_attr(p4clockmod_table, policy->cpu);



	/* cpuinfo and default policy values */

	policy->cpuinfo.transition_latency = 1000000; /* assumed */



	/* the transition latency is set to be 1 higher than the maximum

	 * transition latency of the ondemand governor */

	policy->cpuinfo.transition_latency = 10000001;

	policy->cur = stock_freq;



	return cpufreq_frequency_table_cpuinfo(policy, &p4clockmod_table[0]);