[ACPI] enable C2 and C3 idle power states on SMP
http://bugzilla.kernel.org/show_bug.cgi?id=4401
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 2f50a5b..50cfea4 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -4,6 +4,8 @@
#include <linux/kernel.h>
#include <linux/config.h>
+#include <asm/acpi.h>
+
#define ACPI_PROCESSOR_BUSY_METRIC 10
#define ACPI_PROCESSOR_MAX_POWER 8
@@ -14,6 +16,8 @@
#define ACPI_PROCESSOR_MAX_THROTTLE 250 /* 25% */
#define ACPI_PROCESSOR_MAX_DUTY_WIDTH 4
+#define ACPI_PDC_REVISION_ID 0x1
+
/* Power Management */
struct acpi_processor_cx;
@@ -59,6 +63,9 @@
u32 bm_activity;
int count;
struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
+
+ /* the _PDC objects passed by the driver, if any */
+ struct acpi_object_list *pdc;
};
/* Performance Management */
@@ -82,8 +89,6 @@
acpi_integer status; /* success indicator */
};
-#define ACPI_PDC_REVISION_ID 0x1
-
struct acpi_processor_performance {
unsigned int state;
unsigned int platform_limit;
@@ -179,7 +184,32 @@
extern struct acpi_processor *processors[NR_CPUS];
extern struct acpi_processor_errata errata;
+int acpi_processor_set_pdc(struct acpi_processor *pr,
+ struct acpi_object_list *pdc_in);
+
+#ifdef ARCH_HAS_POWER_PDC_INIT
+void acpi_processor_power_init_pdc(struct acpi_processor_power *pow,
+ unsigned int cpu);
+void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
+ unsigned int cpu);
+#else
+static inline void acpi_processor_power_init_pdc(
+ struct acpi_processor_power *pow, unsigned int cpu)
+{
+ pow->pdc = NULL;
+ return;
+}
+
+static inline void acpi_processor_power_init_bm_check(
+ struct acpi_processor_flags *flags, unsigned int cpu)
+{
+ flags->bm_check = 1;
+ return;
+}
+#endif
+
/* in processor_perflib.c */
+
#ifdef CONFIG_CPU_FREQ
void acpi_processor_ppc_init(void);
void acpi_processor_ppc_exit(void);