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| author | Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> | 2005-12-14 15:05:00 -0500 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2006-02-09 03:21:48 -0500 |
| commit | 3b2d99429e3386b6e2ac949fc72486509c8bbe36 (patch) | |
| tree | b2162152b2c7fa56b13f74a0b166b978dd3ee548 /include | |
| parent | 0bdd340c092b0936f78a54bdbd3927463ed4fca3 (diff) | |
| download | kernel_samsung_tuna-3b2d99429e3386b6e2ac949fc72486509c8bbe36.zip kernel_samsung_tuna-3b2d99429e3386b6e2ac949fc72486509c8bbe36.tar.gz kernel_samsung_tuna-3b2d99429e3386b6e2ac949fc72486509c8bbe36.tar.bz2 | |
P-state software coordination for ACPI core
http://bugzilla.kernel.org/show_bug.cgi?id=5737
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/acpi/processor.h | 27 | ||||
| -rw-r--r-- | include/linux/cpufreq.h | 4 |
2 files changed, 30 insertions, 1 deletions
diff --git a/include/acpi/processor.h b/include/acpi/processor.h index badf027..0c46d1b 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -3,6 +3,7 @@ #include <linux/kernel.h> #include <linux/config.h> +#include <linux/cpu.h> #include <asm/acpi.h> @@ -18,6 +19,17 @@ #define ACPI_PDC_REVISION_ID 0x1 +#define ACPI_PSD_REV0_REVISION 0 /* Support for _PSD as in ACPI 3.0 */ +#define ACPI_PSD_REV0_ENTRIES 5 + +/* + * Types of coordination defined in ACPI 3.0. Same macros can be used across + * P, C and T states + */ +#define DOMAIN_COORD_TYPE_SW_ALL 0xfc +#define DOMAIN_COORD_TYPE_SW_ANY 0xfd +#define DOMAIN_COORD_TYPE_HW_ALL 0xfe + /* Power Management */ struct acpi_processor_cx; @@ -66,6 +78,14 @@ struct acpi_processor_power { /* Performance Management */ +struct acpi_psd_package { + acpi_integer num_entries; + acpi_integer revision; + acpi_integer domain; + acpi_integer coord_type; + acpi_integer num_processors; +} __attribute__ ((packed)); + struct acpi_pct_register { u8 descriptor; u16 length; @@ -92,7 +112,9 @@ struct acpi_processor_performance { struct acpi_pct_register status_register; unsigned int state_count; struct acpi_processor_px *states; - + struct acpi_psd_package domain_info; + cpumask_t shared_cpu_map; + unsigned int shared_type; }; /* Throttling Control */ @@ -161,6 +183,9 @@ struct acpi_processor_errata { } piix4; }; +extern int acpi_processor_preregister_performance( + struct acpi_processor_performance **performance); + extern int acpi_processor_register_performance(struct acpi_processor_performance *performance, unsigned int cpu); extern void acpi_processor_unregister_performance(struct diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 17866d7..f7d9883 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -73,6 +73,8 @@ struct cpufreq_real_policy { struct cpufreq_policy { cpumask_t cpus; /* affected CPUs */ + unsigned int shared_type; /* ANY or ALL affected CPUs + should set cpufreq */ unsigned int cpu; /* cpu nr of registered CPU */ struct cpufreq_cpuinfo cpuinfo;/* see above */ @@ -99,6 +101,8 @@ struct cpufreq_policy { #define CPUFREQ_INCOMPATIBLE (1) #define CPUFREQ_NOTIFY (2) +#define CPUFREQ_SHARED_TYPE_ALL (0) /* All dependent CPUs should set freq */ +#define CPUFREQ_SHARED_TYPE_ANY (1) /* Freq can be set from any dependent CPU */ /******************** cpufreq transition notifiers *******************/ |