From 1180509f6b3ec3ac2505375a78ccd72d270f2169 Mon Sep 17 00:00:00 2001 From: Zhao Yakui Date: Mon, 28 Jan 2008 13:53:42 +0800 Subject: ACPI : Update T-state coordination after getting _TSD info Accordint to ACPI spec, the _TSD object provides T-state control cross logical processor dependency information to OSPM. After the _TSD data for all cpus are obtained, OSPM will set up the T-state coordination between CPUs. Of course if the _TSD doesn't exist or _TSD data is incorrect , it is assumed that there is no T-state coordination and T-state is changed independently. Now there is no proper solution to update T-state coordination after one cpu is hotplugged. So this patch won't support hotplugged cpu very well. Signed-off-by: Zhao Yakui Signed-off-by: Len Brown --- include/acpi/processor.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/acpi/processor.h') diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 76411b1fc4f..d90ad0d63c2 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -176,6 +176,8 @@ struct acpi_processor_throttling { u32 address; u8 duty_offset; u8 duty_width; + u8 tsd_valid_flag; + unsigned int shared_type; struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING]; }; @@ -316,7 +318,7 @@ static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr) int acpi_processor_get_throttling_info(struct acpi_processor *pr); extern int acpi_processor_set_throttling(struct acpi_processor *pr, int state); extern struct file_operations acpi_processor_throttling_fops; - +extern void acpi_processor_throttling_init(void); /* in processor_idle.c */ int acpi_processor_power_init(struct acpi_processor *pr, struct acpi_device *device); -- cgit v1.2.3