#ifndef __ACPI_PROCESSOR_H

#define __ACPI_PROCESSOR_H

#include <linux/kernel.h>

#include <linux/cpu.h>

#include <linux/cpuidle.h>

#include <linux/thermal.h>

#include <asm/acpi.h>

#define ACPI_PROCESSOR_BUSY_METRIC	10

#define ACPI_PROCESSOR_MAX_POWER	8

#define ACPI_PROCESSOR_MAX_C2_LATENCY	100

#define ACPI_PROCESSOR_MAX_C3_LATENCY	1000

#define ACPI_PROCESSOR_MAX_THROTTLING	16

#define ACPI_PROCESSOR_MAX_THROTTLE	250	/* 25% */

#define ACPI_PROCESSOR_MAX_DUTY_WIDTH	4

#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

#define ACPI_TSD_REV0_REVISION		0	/* Support for _PSD as in ACPI 3.0 */

#define ACPI_TSD_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

#define ACPI_CSTATE_SYSTEMIO	0

#define ACPI_CSTATE_FFH		1

#define ACPI_CSTATE_HALT	2

#define ACPI_CX_DESC_LEN	32

/* Power Management */

struct acpi_processor_cx;

struct acpi_power_register {

	u8 descriptor;

	u16 length;

	u8 space_id;

	u8 bit_width;

	u8 bit_offset;

	u8 reserved;

	u64 address;

} __attribute__ ((packed));

struct acpi_processor_cx_policy {

	u32 count;

	struct acpi_processor_cx *state;

	struct {

		u32 time;

		u32 ticks;

		u32 count;

		u32 bm;

	} threshold;

};

struct acpi_processor_cx {

	u8 valid;

	u8 type;

	u32 address;

	u8 entry_method;

	u8 index;

	u32 latency;

	u32 latency_ticks;

	u32 power;

	u32 usage;

	u64 time;

	struct acpi_processor_cx_policy promotion;

	struct acpi_processor_cx_policy demotion;

	char desc[ACPI_CX_DESC_LEN];

};

struct acpi_processor_power {

	struct cpuidle_device dev;

	struct acpi_processor_cx *state;

	unsigned long bm_check_timestamp;

	u32 default_state;

	u32 bm_activity;

	int count;

	struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];

	int timer_broadcast_on_state;

};

/* 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;

	u8 space_id;

	u8 bit_width;

	u8 bit_offset;

	u8 reserved;

	u64 address;

} __attribute__ ((packed));

struct acpi_processor_px {

	acpi_integer core_frequency;	/* megahertz */

	acpi_integer power;	/* milliWatts */

	acpi_integer transition_latency;	/* microseconds */

	acpi_integer bus_master_latency;	/* microseconds */

	acpi_integer control;	/* control value */

	acpi_integer status;	/* success indicator */

};

struct acpi_processor_performance {

	unsigned int state;

	unsigned int platform_limit;

	struct acpi_pct_register control_register;

	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 */

struct acpi_tsd_package {

	acpi_integer num_entries;

	acpi_integer revision;

	acpi_integer domain;

	acpi_integer coord_type;

	acpi_integer num_processors;

} __attribute__ ((packed));

struct acpi_ptc_register {

	u8 descriptor;

	u16 length;

	u8 space_id;

	u8 bit_width;

	u8 bit_offset;

	u8 reserved;

	u64 address;

} __attribute__ ((packed));

struct acpi_processor_tx_tss {

	acpi_integer freqpercentage;	/* */

	acpi_integer power;	/* milliWatts */

	acpi_integer transition_latency;	/* microseconds */

	acpi_integer control;	/* control value */

	acpi_integer status;	/* success indicator */

};

struct acpi_processor_tx {

	u16 power;

	u16 performance;

};

struct acpi_processor;

struct acpi_processor_throttling {

	unsigned int state;

	unsigned int platform_limit;

	struct acpi_pct_register control_register;

	struct acpi_pct_register status_register;

	unsigned int state_count;

	struct acpi_processor_tx_tss *states_tss;

	struct acpi_tsd_package domain_info;

	cpumask_t shared_cpu_map;

	int (*acpi_processor_get_throttling) (struct acpi_processor * pr);

	int (*acpi_processor_set_throttling) (struct acpi_processor * pr,

					      int state);

	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];

};

/* Limit Interface */

struct acpi_processor_lx {

	int px;			/* performance state */

	int tx;			/* throttle level */

};

struct acpi_processor_limit {

	struct acpi_processor_lx state;	/* current limit */

	struct acpi_processor_lx thermal;	/* thermal limit */

	struct acpi_processor_lx user;	/* user limit */

};

struct acpi_processor_flags {

	u8 power:1;

	u8 performance:1;

	u8 throttling:1;

	u8 limit:1;

	u8 bm_control:1;

	u8 bm_check:1;

	u8 has_cst:1;

	u8 power_setup_done:1;

	u8 bm_rld_set:1;

};

struct acpi_processor {

	acpi_handle handle;

	u32 acpi_id;

	u32 id;

	u32 pblk;

	int performance_platform_limit;

	int throttling_platform_limit;

	/* 0 - states 0..n-th state available */

	struct acpi_processor_flags flags;

	struct acpi_processor_power power;

	struct acpi_processor_performance *performance;

	struct acpi_processor_throttling throttling;

	struct acpi_processor_limit limit;

	struct thermal_cooling_device *cdev;

	/* the _PDC objects for this processor, if any */

	struct acpi_object_list *pdc;

};

struct acpi_processor_errata {

	u8 smp;

	struct {

		u8 throttle:1;

		u8 fdma:1;

		u8 reserved:6;

		u32 bmisx;

	} 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

						  acpi_processor_performance

						  *performance,

						  unsigned int cpu);

/* note: this locks both the calling module and the processor module

         if a _PPC object exists, rmmod is disallowed then */

int acpi_processor_notify_smm(struct module *calling_module);

/* for communication between multiple parts of the processor kernel module */

DECLARE_PER_CPU(struct acpi_processor *, processors);

extern struct acpi_processor_errata errata;

void arch_acpi_processor_init_pdc(struct acpi_processor *pr);

#ifdef ARCH_HAS_POWER_INIT

void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,

					unsigned int cpu);

int acpi_processor_ffh_cstate_probe(unsigned int cpu,

				    struct acpi_processor_cx *cx,

				    struct acpi_power_register *reg);

void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cstate);

#else

static inline void acpi_processor_power_init_bm_check(struct

						      acpi_processor_flags

						      *flags, unsigned int cpu)

{

	flags->bm_check = 1;

	return;

}

static inline int acpi_processor_ffh_cstate_probe(unsigned int cpu,

						  struct acpi_processor_cx *cx,

						  struct acpi_power_register

						  *reg)

{

	return -1;

}

static inline void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx

						   *cstate)

{

	return;

}

#endif

/* in processor_perflib.c */

#ifdef CONFIG_CPU_FREQ

void acpi_processor_ppc_init(void);

void acpi_processor_ppc_exit(void);

int acpi_processor_ppc_has_changed(struct acpi_processor *pr);

#else

static inline void acpi_processor_ppc_init(void)

{

	return;

}

static inline void acpi_processor_ppc_exit(void)

{

	return;

}

static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr)

{

	static unsigned int printout = 1;

	if (printout) {

		printk(KERN_WARNING

		       "Warning: Processor Platform Limit event detected, but not handled.\n");

		printk(KERN_WARNING

		       "Consider compiling CPUfreq support into your kernel.\n");

		printout = 0;

	}

	return 0;

}

#endif				/* CONFIG_CPU_FREQ */

/* in processor_throttling.c */

int acpi_processor_tstate_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);

int acpi_processor_cst_has_changed(struct acpi_processor *pr);

int acpi_processor_power_exit(struct acpi_processor *pr,

			      struct acpi_device *device);

int acpi_processor_suspend(struct acpi_device * device, pm_message_t state);

int acpi_processor_resume(struct acpi_device * device);

extern struct cpuidle_driver acpi_idle_driver;

/* in processor_thermal.c */

int acpi_processor_get_limit_info(struct acpi_processor *pr);

extern struct file_operations acpi_processor_limit_fops;

extern struct thermal_cooling_device_ops processor_cooling_ops;

#ifdef CONFIG_CPU_FREQ

void acpi_thermal_cpufreq_init(void);

void acpi_thermal_cpufreq_exit(void);

#else

static inline void acpi_thermal_cpufreq_init(void)

{

	return;

}

static inline void acpi_thermal_cpufreq_exit(void)

{

	return;

}

#endif

#endif