diff options
| author | Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> | 2005-04-15 15:07:10 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2005-07-12 00:14:36 -0400 |
| commit | 02df8b9385c21fdba165bd380f60eca1d3b0578b (patch) | |
| tree | 988ad0e0ca73a40993fb1458d5cd19f90f922b31 /include/acpi | |
| parent | 17e9c78a75ce9eacd61200f9e1f1924012e28846 (diff) | |
| download | linux-stable-02df8b9385c21fdba165bd380f60eca1d3b0578b.tar.gz linux-stable-02df8b9385c21fdba165bd380f60eca1d3b0578b.tar.bz2 linux-stable-02df8b9385c21fdba165bd380f60eca1d3b0578b.zip | |
[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>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/pdc_intel.h | 29 | ||||
| -rw-r--r-- | include/acpi/processor.h | 34 |
2 files changed, 61 insertions, 2 deletions
diff --git a/include/acpi/pdc_intel.h b/include/acpi/pdc_intel.h new file mode 100644 index 000000000000..fd6730e4e567 --- /dev/null +++ b/include/acpi/pdc_intel.h @@ -0,0 +1,29 @@ + +/* _PDC bit definition for Intel processors */ + +#ifndef __PDC_INTEL_H__ +#define __PDC_INTEL_H__ + +#define ACPI_PDC_P_FFH (0x0001) +#define ACPI_PDC_C_C1_HALT (0x0002) +#define ACPI_PDC_T_FFH (0x0004) +#define ACPI_PDC_SMP_C1PT (0x0008) +#define ACPI_PDC_SMP_C2C3 (0x0010) +#define ACPI_PDC_SMP_P_SWCOORD (0x0020) +#define ACPI_PDC_SMP_C_SWCOORD (0x0040) +#define ACPI_PDC_SMP_T_SWCOORD (0x0080) +#define ACPI_PDC_C_C1_FFH (0x0100) + + +#define ACPI_PDC_EST_CAPABILITY_SMP (ACPI_PDC_SMP_C1PT | \ + ACPI_PDC_C_C1_HALT) + +#define ACPI_PDC_EST_CAPABILITY_SMP_MSR (ACPI_PDC_EST_CAPABILITY_SMP | \ + ACPI_PDC_P_FFH) + +#define ACPI_PDC_C_CAPABILITY_SMP (ACPI_PDC_SMP_C2C3 | \ + ACPI_PDC_SMP_C1PT | \ + ACPI_PDC_C_C1_HALT) + +#endif /* __PDC_INTEL_H__ */ + diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 2f50a5bb0c78..50cfea4ff6ca 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 @@ struct acpi_processor_power { 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 @@ struct acpi_processor_px { 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 @@ int acpi_processor_notify_smm(struct module *calling_module); 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); |