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authorIngo Molnar <mingo@elte.hu>2008-06-16 11:20:28 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-16 11:20:28 +0200
commitfaeca31d068090285b77c39574d2bda14b079c50 (patch)
tree789841a7f0d336b24a74f2191542a2eb8177c8fa /arch/x86/kernel/cpu/cpufreq/powernow-k8.c
parent499f8f84b8324ba27d756e03f373fa16eeed9ccc (diff)
parent066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff)
Merge branch 'linus' into x86/pattip-x86-pat-2008-06-16_09.20_Mon
Diffstat (limited to 'arch/x86/kernel/cpu/cpufreq/powernow-k8.c')
-rw-r--r--arch/x86/kernel/cpu/cpufreq/powernow-k8.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 46d4034d9f37..206791eb46e3 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -1127,12 +1127,23 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
* an UP version, and is deprecated by AMD.
*/
if (num_online_cpus() != 1) {
- printk(KERN_ERR PFX "MP systems not supported by PSB BIOS structure\n");
+#ifndef CONFIG_ACPI_PROCESSOR
+ printk(KERN_ERR PFX "ACPI Processor support is required "
+ "for SMP systems but is absent. Please load the "
+ "ACPI Processor module before starting this "
+ "driver.\n");
+#else
+ printk(KERN_ERR PFX "Your BIOS does not provide ACPI "
+ "_PSS objects in a way that Linux understands. "
+ "Please report this to the Linux ACPI maintainers"
+ " and complain to your BIOS vendor.\n");
+#endif
kfree(data);
return -ENODEV;
}
if (pol->cpu != 0) {
- printk(KERN_ERR PFX "No _PSS objects for CPU other than CPU0\n");
+ printk(KERN_ERR PFX "No ACPI _PSS objects for CPU other than "
+ "CPU0. Complain to your BIOS vendor.\n");
kfree(data);
return -ENODEV;
}