WebSVN - shark - Blame - Rev 434 - /shark/trunk/drivers/linuxc26/include/acpi/processor.h

Rev	Author	Line No.	Line
434	giacomo	1	#ifndef __ACPI_PROCESSOR_H
		2	#define __ACPI_PROCESSOR_H
		3
		4	#include <linux/kernel.h>
		5
		6	#define ACPI_PROCESSOR_BUSY_METRIC 10
		7
		8	#define ACPI_PROCESSOR_MAX_POWER ACPI_C_STATE_COUNT
		9	#define ACPI_PROCESSOR_MAX_C2_LATENCY 100
		10	#define ACPI_PROCESSOR_MAX_C3_LATENCY 1000
		11
		12	#define ACPI_PROCESSOR_MAX_PERFORMANCE 8
		13
		14	#define ACPI_PROCESSOR_MAX_THROTTLING 16
		15	#define ACPI_PROCESSOR_MAX_THROTTLE 250 /* 25% */
		16	#define ACPI_PROCESSOR_MAX_DUTY_WIDTH 4
		17
		18	/* Power Management */
		19
		20	struct acpi_processor_cx_policy {
		21	u32 count;
		22	int state;
		23	struct {
		24	u32 time;
		25	u32 ticks;
		26	u32 count;
		27	u32 bm;
		28	} threshold;
		29	};
		30
		31	struct acpi_processor_cx {
		32	u8 valid;
		33	u32 address;
		34	u32 latency;
		35	u32 latency_ticks;
		36	u32 power;
		37	u32 usage;
		38	struct acpi_processor_cx_policy promotion;
		39	struct acpi_processor_cx_policy demotion;
		40	};
		41
		42	struct acpi_processor_power {
		43	int state;
		44	int default_state;
		45	u32 bm_activity;
		46	struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
		47	};
		48
		49	/* Performance Management */
		50
		51	struct acpi_pct_register {
		52	u8 descriptor;
		53	u16 length;
		54	u8 space_id;
		55	u8 bit_width;
		56	u8 bit_offset;
		57	u8 reserved;
		58	u64 address;
		59	} __attribute__ ((packed));
		60
		61	struct acpi_processor_px {
		62	acpi_integer core_frequency; /* megahertz */
		63	acpi_integer power; /* milliWatts */
		64	acpi_integer transition_latency; /* microseconds */
		65	acpi_integer bus_master_latency; /* microseconds */
		66	acpi_integer control; /* control value */
		67	acpi_integer status; /* success indicator */
		68	};
		69
		70	struct acpi_processor_performance {
		71	int state;
		72	int platform_limit;
		73	u16 control_register;
		74	u16 status_register;
		75	int state_count;
		76	struct acpi_processor_px states[ACPI_PROCESSOR_MAX_PERFORMANCE];
		77	struct cpufreq_frequency_table freq_table[ACPI_PROCESSOR_MAX_PERFORMANCE];
		78	struct acpi_processor *pr;
		79	};
		80
		81
		82	/* Throttling Control */
		83
		84	struct acpi_processor_tx {
		85	u16 power;
		86	u16 performance;
		87	};
		88
		89	struct acpi_processor_throttling {
		90	int state;
		91	u32 address;
		92	u8 duty_offset;
		93	u8 duty_width;
		94	int state_count;
		95	struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
		96	};
		97
		98	/* Limit Interface */
		99
		100	struct acpi_processor_lx {
		101	int px; /* performace state */
		102	int tx; /* throttle level */
		103	};
		104
		105	struct acpi_processor_limit {
		106	struct acpi_processor_lx state; /* current limit */
		107	struct acpi_processor_lx thermal; /* thermal limit */
		108	struct acpi_processor_lx user; /* user limit */
		109	};
		110
		111
		112	struct acpi_processor_flags {
		113	u8 power:1;
		114	u8 performance:1;
		115	u8 throttling:1;
		116	u8 limit:1;
		117	u8 bm_control:1;
		118	u8 bm_check:1;
		119	u8 reserved:2;
		120	};
		121
		122	struct acpi_processor {
		123	acpi_handle handle;
		124	u32 acpi_id;
		125	u32 id;
		126	int performance_platform_limit;
		127	struct acpi_processor_flags flags;
		128	struct acpi_processor_power power;
		129	struct acpi_processor_performance *performance;
		130	struct acpi_processor_throttling throttling;
		131	struct acpi_processor_limit limit;
		132	};
		133
		134	extern int acpi_processor_get_platform_limit (
		135	struct acpi_processor* pr);
		136	extern int acpi_processor_register_performance (
		137	struct acpi_processor_performance * performance,
		138	struct acpi_processor ** pr,
		139	unsigned int cpu);
		140
		141	#endif

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