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#ifndef __ACPI_PROCESSOR_H

#define __ACPI_PROCESSOR_H

#include <linux/kernel.h>

#include <linux/cpu.h>

#include <linux/cpuidle.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)

/* 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 space_id;

        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;

};

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;

        struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];

};

/* Limit Interface */

struct acpi_processor_lx {

        int px;                 /* performace 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;

        /* 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 */

extern struct acpi_processor *processors[NR_CPUS];

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_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;

/* 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;

#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