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authorJohannes Berg <johannes@sipsolutions.net>2007-03-21 21:40:42 +1100
committerPaul Mackerras <paulus@samba.org>2007-05-02 20:04:28 +1000
commit8fce6dd29fa9d1ac880bf0cb4528e9bd5878cf68 (patch)
treef1032132dd48bde3c030a39a145d9bb992a75cfe
parentb302887854d6f0c6f9fc3f1080535e7c1bd53134 (diff)
[POWERPC] powermac: Fix G5-cpufreq for cpu on/offline
The original code here is wrong, it applies "previous" knowledge. The way the cpufreq core is designed is that the policy for the secondary CPU that comes online says that it must in fact not use this policy but use the same as the other CPUs that are listed, which in fact is CPU#0. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
-rw-r--r--arch/powerpc/platforms/powermac/cpufreq_64.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/powermac/cpufreq_64.c b/arch/powerpc/platforms/powermac/cpufreq_64.c
index 567d5523b69..00f50298c34 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_64.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_64.c
@@ -357,13 +357,13 @@ static unsigned int g5_cpufreq_get_speed(unsigned int cpu)
static int g5_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
- if (policy->cpu != 0)
- return -ENODEV;
-
policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
policy->cur = g5_cpu_freqs[g5_query_freq()].frequency;
- policy->cpus = cpu_possible_map;
+ /* secondary CPUs are tied to the primary one by the
+ * cpufreq core if in the secondary policy we tell it that
+ * it actually must be one policy together with all others. */
+ policy->cpus = cpu_online_map;
cpufreq_frequency_table_get_attr(g5_cpu_freqs, policy->cpu);
return cpufreq_frequency_table_cpuinfo(policy,