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authorThomas Renninger <trenn@suse.de>2007-10-31 15:41:42 +0100
committerLen Brown <len.brown@intel.com>2008-02-07 14:47:40 -0500
commit919158d17b42683a5c7368e1e77661c65a20a48a (patch)
tree06633fa7d84b42980b272fcecc94c34d4831b934 /drivers/acpi/processor_perflib.c
parentb0b23e0ade6aa265d7278e06d50bc10ec81dd174 (diff)
ACPI: cpufreq: Print _PPC changes via cpufreq debug layer
enabled with CPU_FREQ_DEBUG Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/processor_perflib.c')
-rw-r--r--drivers/acpi/processor_perflib.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index f32010bee4d..b477a4be8a6 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -50,6 +50,10 @@ ACPI_MODULE_NAME("processor_perflib");
static DEFINE_MUTEX(performance_mutex);
+/* Use cpufreq debug layer for _PPC changes. */
+#define cpufreq_printk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_CORE, \
+ "cpufreq-core", msg)
+
/*
* _PPC support is implemented as a CPUfreq policy notifier:
* This means each time a CPUfreq driver registered also with
@@ -131,6 +135,9 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
return -ENODEV;
}
+ cpufreq_printk("CPU %d: _PPC is %d - frequency %s limited\n", pr->id,
+ (int)ppc, ppc ? "" : "not");
+
pr->performance_platform_limit = (int)ppc;
return 0;