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| author | Zhao Yakui <yakui.zhao@intel.com> | 2008-01-28 13:53:42 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-02-02 02:30:11 -0500 |
| commit | 1180509f6b3ec3ac2505375a78ccd72d270f2169 (patch) | |
| tree | f26bcf07eedae91cb43a84fb617d62beb2a3d123 /include/acpi | |
| parent | 87654273ef63213f90c4243913987436495824f0 (diff) | |
| download | linux-1180509f6b3ec3ac2505375a78ccd72d270f2169.tar.gz linux-1180509f6b3ec3ac2505375a78ccd72d270f2169.tar.bz2 linux-1180509f6b3ec3ac2505375a78ccd72d270f2169.zip | |
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 <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/processor.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 76411b1fc4fd..d90ad0d63c24 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); |