#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 access_size;	u64 address;} __attribute__ ((packed)); 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;	u8 bm_sts_skip;	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;	int count;	struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];	int timer_broadcast_on_state;}; /* Performance Management */ struct acpi_psd_package {	u64 num_entries;	u64 revision;	u64 domain;	u64 coord_type;	u64 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 {	u64 core_frequency;	/* megahertz */	u64 power;	/* milliWatts */	u64 transition_latency;	/* microseconds */	u64 bus_master_latency;	/* microseconds */	u64 control;	/* control value */	u64 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_var_t shared_cpu_map;	unsigned int shared_type;}; /* Throttling Control */ struct acpi_tsd_package {	u64 num_entries;	u64 revision;	u64 domain;	u64 coord_type;	u64 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 {	u64 freqpercentage;	/* */	u64 power;	/* milliWatts */	u64 transition_latency;	/* microseconds */	u64 control;	/* control value */	u64 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_var_t shared_cpu_map;	int (*acpi_processor_get_throttling) (struct acpi_processor * pr);	int (*acpi_processor_set_throttling) (struct acpi_processor * pr,					      int state, bool force); 	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;}; 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						  __percpu *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; #ifdef ARCH_HAS_POWER_INITvoid 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);#elsestatic 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_FREQvoid acpi_processor_ppc_init(void);void acpi_processor_ppc_exit(void);int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag);extern int acpi_processor_get_bios_limit(int cpu, unsigned int *limit);#elsestatic 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,								int event_flag){	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;}static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit){	return -ENODEV;} #endif				/* CONFIG_CPU_FREQ */ /* in processor_core.c */void acpi_processor_set_pdc(acpi_handle handle);int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id); /* 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, bool force);/* * Reevaluate whether the T-state is invalid after one cpu is * onlined/offlined. In such case the flags.throttling will be updated. */extern void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,			unsigned long action);extern const 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 thermal_cooling_device_ops processor_cooling_ops;#ifdef CONFIG_CPU_FREQvoid acpi_thermal_cpufreq_init(void);void acpi_thermal_cpufreq_exit(void);#elsestatic inline void acpi_thermal_cpufreq_init(void){	return;}static inline void acpi_thermal_cpufreq_exit(void){	return;}#endif #endif