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path: root/drivers/acpi/processor_perflib.c
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Diffstat (limited to 'drivers/acpi/processor_perflib.c')
-rw-r--r--drivers/acpi/processor_perflib.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 8ba0ed0b9ddb..01e366d2b6fb 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -167,6 +167,19 @@ int acpi_processor_ppc_has_changed(struct acpi_processor *pr)
return cpufreq_update_policy(pr->id);
}
+int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
+{
+ struct acpi_processor *pr;
+
+ pr = per_cpu(processors, cpu);
+ if (!pr || !pr->performance || !pr->performance->state_count)
+ return -ENODEV;
+ *limit = pr->performance->states[pr->performance_platform_limit].
+ core_frequency * 1000;
+ return 0;
+}
+EXPORT_SYMBOL(acpi_processor_get_bios_limit);
+
void acpi_processor_ppc_init(void)
{
if (!cpufreq_register_notifier