#ifndef __ACPI_PROCESSOR_H#define __ACPI_PROCESSOR_H #include <linux/kernel.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 /* 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;	u32 latency;	u32 latency_ticks;	u32 power;	u32 usage;	struct acpi_processor_cx_policy promotion;	struct acpi_processor_cx_policy demotion;}; struct acpi_processor_power {	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];}; /* Performance Management */ 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; }; /* Throttling Control */ struct acpi_processor_tx {	u16 power;	u16 performance;}; struct acpi_processor_throttling {	int state;	u32 address;	u8 duty_offset;	u8 duty_width;	int state_count;	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;}; struct acpi_processor {	acpi_handle handle;	u32 acpi_id;	u32 id;	u32 pblk;	int performance_platform_limit;	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_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_INITvoid acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,					unsigned int cpu);#elsestatic inline void acpi_processor_power_init_bm_check(struct						      acpi_processor_flags						      *flags, unsigned int cpu){	flags->bm_check = 1;	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);#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){	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);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); /* 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_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