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authorshin, jacob <jacob.shin@amd.com>2006-03-27 09:57:20 -0600
committerDave Jones <davej@redhat.com>2006-03-27 15:01:28 -0500
commiteef5167e5045fa8265b3e72cac9dbc4bc7dd82a6 (patch)
treedafb8c4001ba4a8c5f15eedd81568799df8cb03f /arch/i386/kernel/cpu
parent0bb065f29bffc7895f0dbac1fc7d74b3a8d357a9 (diff)
[CPUFREQ] hotplug cpu fix for powernow-k8
Andi's previous fix to initialise powernow_data on all siblings will not work properly with CPU Hotplug. Signed-off-by: Jacob Shin <jacob.shin@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'arch/i386/kernel/cpu')
-rw-r--r--arch/i386/kernel/cpu/cpufreq/powernow-k8.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index 1e70823e1cb..712a26bd445 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
@@ -1095,10 +1095,15 @@ static int __devexit powernowk8_cpu_exit (struct cpufreq_policy *pol)
static unsigned int powernowk8_get (unsigned int cpu)
{
- struct powernow_k8_data *data = powernow_data[cpu];
+ struct powernow_k8_data *data;
cpumask_t oldmask = current->cpus_allowed;
unsigned int khz = 0;
+ data = powernow_data[first_cpu(cpu_core_map[cpu])];
+
+ if (!data)
+ return -EINVAL;
+
set_cpus_allowed(current, cpumask_of_cpu(cpu));
if (smp_processor_id() != cpu) {
printk(KERN_ERR PFX "limiting to CPU %d failed in powernowk8_get\n", cpu);