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authorZhao Yakui <yakui.zhao@intel.com>2009-10-16 09:20:41 +0800
committerLen Brown <len.brown@intel.com>2009-11-06 01:58:07 -0500
commitd81c45e1c9369855901420f79114852eba2ea16a (patch)
tree910e9b4044bee76568c9eaeff70aac2fbc2385ab /include/acpi/processor.h
parentb419148e567728f6af0c3b01965c1cc141e3e13a (diff)
downloadblackbird-op-linux-d81c45e1c9369855901420f79114852eba2ea16a.tar.gz
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ACPI: Notify the _PPC evaluation status to the platform
According to the ACPI spec(section 8.4.4.3) OSPM should convey the _PPC evaluations status to the platform if there exists the _OST object. The _OST contains two arguments: The first is the PERFORMANCE notificatin event. The second is the status of _PPC object. OSPM will convey the _PPC evaluation status to the platform. Of course when the module parameter of "ignore_ppc" is added, OSPM won't evaluate the _PPC object. But it will call the _OST object. At the same time the _OST object will be evaluated only when the PERFORMANCE notification event is received. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/acpi/processor.h')
-rw-r--r--include/acpi/processor.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 740ac3ad8fd0..a920237f7c62 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -294,7 +294,7 @@ static inline void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx
#ifdef CONFIG_CPU_FREQ
void acpi_processor_ppc_init(void);
void acpi_processor_ppc_exit(void);
-int acpi_processor_ppc_has_changed(struct acpi_processor *pr);
+int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag);
#else
static inline void acpi_processor_ppc_init(void)
{
@@ -304,7 +304,8 @@ static inline void acpi_processor_ppc_exit(void)
{
return;
}
-static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr)
+static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr,
+ int event_flag)
{
static unsigned int printout = 1;
if (printout) {
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