[deliverable/linux.git] / include / acpi / processor.h

#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 {
	u8 valid;
	u8 type;
	u32 address;
	u8 entry_method;
	u8 index;
	u32 latency;
	u32 latency_ticks;
	u32 power;
	u32 usage;
	u64 time;
	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_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, int event_flag);
extern int acpi_processor_get_bios_limit(int cpu, unsigned int *limit);
#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,
								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);
#ifdef CONFIG_SMP
int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
#else
static inline int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id)
{
	return -1;
}
#endif

/* 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);
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 const 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
Commit	Line	Data
1da177e4 LT	1	#ifndef __ACPI_PROCESSOR_H
	2	#define __ACPI_PROCESSOR_H
	3
	4	#include <linux/kernel.h>
3b2d9942	5	#include <linux/cpu.h>
4f86d3a8	6	#include <linux/cpuidle.h>
d9460fd2	7	#include <linux/thermal.h>
02df8b93 VP	8	#include <asm/acpi.h>
02df8b93 VP	9
1da177e4 LT	10	#define ACPI_PROCESSOR_BUSY_METRIC 10
	11
	12	#define ACPI_PROCESSOR_MAX_POWER 8
	13	#define ACPI_PROCESSOR_MAX_C2_LATENCY 100
	14	#define ACPI_PROCESSOR_MAX_C3_LATENCY 1000
	15
	16	#define ACPI_PROCESSOR_MAX_THROTTLING 16
	17	#define ACPI_PROCESSOR_MAX_THROTTLE 250 /* 25% */
	18	#define ACPI_PROCESSOR_MAX_DUTY_WIDTH 4
	19
02df8b93 VP	20	#define ACPI_PDC_REVISION_ID 0x1
02df8b93 VP	21
fd350943	22	#define ACPI_PSD_REV0_REVISION 0 /* Support for _PSD as in ACPI 3.0 */
3b2d9942 VP	23	#define ACPI_PSD_REV0_ENTRIES 5
3b2d9942 VP	24
01854e69 LY	25	#define ACPI_TSD_REV0_REVISION 0 /* Support for _PSD as in ACPI 3.0 */
01854e69 LY	26	#define ACPI_TSD_REV0_ENTRIES 5
3b2d9942 VP	27	/*
	28	* Types of coordination defined in ACPI 3.0. Same macros can be used across
	29	* P, C and T states
	30	*/
	31	#define DOMAIN_COORD_TYPE_SW_ALL 0xfc
	32	#define DOMAIN_COORD_TYPE_SW_ANY 0xfd
	33	#define DOMAIN_COORD_TYPE_HW_ALL 0xfe
	34
4fcb2fcd VP	35	#define ACPI_CSTATE_SYSTEMIO 0
	36	#define ACPI_CSTATE_FFH 1
	37	#define ACPI_CSTATE_HALT 2
	38
	39	#define ACPI_CX_DESC_LEN 32
991528d7	40
1da177e4 LT	41	/* Power Management */
	42
	43	struct acpi_processor_cx;
	44
	45	struct acpi_power_register {
4be44fcd LB	46	u8 descriptor;
	47	u16 length;
	48	u8 space_id;
	49	u8 bit_width;
	50	u8 bit_offset;
	51	u8 reserved;
	52	u64 address;
1da177e4 LT	53	} __attribute__ ((packed));
1da177e4 LT	54
1da177e4	55	struct acpi_processor_cx {
4be44fcd LB	56	u8 valid;
	57	u8 type;
	58	u32 address;
bc71bec9	59	u8 entry_method;
991528d7	60	u8 index;
4be44fcd LB	61	u32 latency;
	62	u32 latency_ticks;
	63	u32 power;
	64	u32 usage;
a3c6598f	65	u64 time;
4fcb2fcd	66	char desc[ACPI_CX_DESC_LEN];
1da177e4 LT	67	};
	68
	69	struct acpi_processor_power {
4f86d3a8	70	struct cpuidle_device dev;
1da177e4	71	struct acpi_processor_cx *state;
4be44fcd LB	72	unsigned long bm_check_timestamp;
4be44fcd LB	73	u32 default_state;
4be44fcd	74	int count;
1da177e4	75	struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
169a0abb	76	int timer_broadcast_on_state;
1da177e4 LT	77	};
	78
	79	/* Performance Management */
	80
3b2d9942	81	struct acpi_psd_package {
439913ff LM	82	u64 num_entries;
	83	u64 revision;
	84	u64 domain;
	85	u64 coord_type;
	86	u64 num_processors;
3b2d9942 VP	87	} __attribute__ ((packed));
3b2d9942 VP	88
1da177e4	89	struct acpi_pct_register {
4be44fcd LB	90	u8 descriptor;
	91	u16 length;
	92	u8 space_id;
	93	u8 bit_width;
	94	u8 bit_offset;
	95	u8 reserved;
	96	u64 address;
1da177e4 LT	97	} __attribute__ ((packed));
	98
	99	struct acpi_processor_px {
439913ff LM	100	u64 core_frequency; /* megahertz */
	101	u64 power; /* milliWatts */
	102	u64 transition_latency; /* microseconds */
	103	u64 bus_master_latency; /* microseconds */
	104	u64 control; /* control value */
	105	u64 status; /* success indicator */
1da177e4 LT	106	};
1da177e4 LT	107
1da177e4	108	struct acpi_processor_performance {
4be44fcd LB	109	unsigned int state;
4be44fcd LB	110	unsigned int platform_limit;
1da177e4 LT	111	struct acpi_pct_register control_register;
1da177e4 LT	112	struct acpi_pct_register status_register;
4be44fcd	113	unsigned int state_count;
1da177e4	114	struct acpi_processor_px *states;
3b2d9942	115	struct acpi_psd_package domain_info;
2fdf66b4	116	cpumask_var_t shared_cpu_map;
3b2d9942	117	unsigned int shared_type;
1da177e4 LT	118	};
1da177e4 LT	119
1da177e4 LT	120	/* Throttling Control */
1da177e4 LT	121
01854e69	122	struct acpi_tsd_package {
439913ff LM	123	u64 num_entries;
	124	u64 revision;
	125	u64 domain;
	126	u64 coord_type;
	127	u64 num_processors;
01854e69 LY	128	} __attribute__ ((packed));
	129
	130	struct acpi_ptc_register {
	131	u8 descriptor;
	132	u16 length;
	133	u8 space_id;
	134	u8 bit_width;
	135	u8 bit_offset;
	136	u8 reserved;
	137	u64 address;
	138	} __attribute__ ((packed));
	139
	140	struct acpi_processor_tx_tss {
439913ff LM	141	u64 freqpercentage; /* */
	142	u64 power; /* milliWatts */
	143	u64 transition_latency; /* microseconds */
	144	u64 control; /* control value */
	145	u64 status; /* success indicator */
01854e69	146	};
1da177e4	147	struct acpi_processor_tx {
4be44fcd LB	148	u16 power;
4be44fcd LB	149	u16 performance;
1da177e4 LT	150	};
1da177e4 LT	151
01854e69	152	struct acpi_processor;
1da177e4	153	struct acpi_processor_throttling {
01854e69 LY	154	unsigned int state;
	155	unsigned int platform_limit;
	156	struct acpi_pct_register control_register;
	157	struct acpi_pct_register status_register;
	158	unsigned int state_count;
	159	struct acpi_processor_tx_tss *states_tss;
	160	struct acpi_tsd_package domain_info;
2fdf66b4	161	cpumask_var_t shared_cpu_map;
ff55a9ce LB	162	int (acpi_processor_get_throttling) (struct acpi_processor pr);
ff55a9ce LB	163	int (acpi_processor_set_throttling) (struct acpi_processor pr,
2a908002	164	int state, bool force);
01854e69	165
4be44fcd LB	166	u32 address;
	167	u8 duty_offset;
	168	u8 duty_width;
1180509f ZY	169	u8 tsd_valid_flag;
1180509f ZY	170	unsigned int shared_type;
1da177e4 LT	171	struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
	172	};
	173
	174	/* Limit Interface */
	175
	176	struct acpi_processor_lx {
aee07ba6	177	int px; /* performance state */
4be44fcd	178	int tx; /* throttle level */
1da177e4 LT	179	};
	180
	181	struct acpi_processor_limit {
4be44fcd	182	struct acpi_processor_lx state; /* current limit */
1da177e4	183	struct acpi_processor_lx thermal; /* thermal limit */
4be44fcd	184	struct acpi_processor_lx user; /* user limit */
1da177e4 LT	185	};
1da177e4 LT	186
1da177e4	187	struct acpi_processor_flags {
4be44fcd LB	188	u8 power:1;
	189	u8 performance:1;
	190	u8 throttling:1;
	191	u8 limit:1;
	192	u8 bm_control:1;
	193	u8 bm_check:1;
	194	u8 has_cst:1;
	195	u8 power_setup_done:1;
4f86d3a8	196	u8 bm_rld_set:1;
1da177e4 LT	197	};
	198
	199	struct acpi_processor {
4be44fcd LB	200	acpi_handle handle;
	201	u32 acpi_id;
	202	u32 id;
	203	u32 pblk;
	204	int performance_platform_limit;
01854e69	205	int throttling_platform_limit;
ff55a9ce	206	/* 0 - states 0..n-th state available */
01854e69	207
1da177e4 LT	208	struct acpi_processor_flags flags;
	209	struct acpi_processor_power power;
	210	struct acpi_processor_performance *performance;
	211	struct acpi_processor_throttling throttling;
	212	struct acpi_processor_limit limit;
d9460fd2	213	struct thermal_cooling_device *cdev;
1da177e4 LT	214	};
	215
	216	struct acpi_processor_errata {
4be44fcd	217	u8 smp;
1da177e4	218	struct {
4be44fcd LB	219	u8 throttle:1;
	220	u8 fdma:1;
	221	u8 reserved:6;
	222	u32 bmisx;
	223	} piix4;
1da177e4 LT	224	};
1da177e4 LT	225
fd350943 LB	226	extern int acpi_processor_preregister_performance(struct
fd350943 LB	227	acpi_processor_performance
a29d8b8e	228	__percpu *performance);
3b2d9942	229
4be44fcd LB	230	extern int acpi_processor_register_performance(struct acpi_processor_performance
	231	*performance, unsigned int cpu);
	232	extern void acpi_processor_unregister_performance(struct
	233	acpi_processor_performance
	234	*performance,
	235	unsigned int cpu);
1da177e4 LT	236
	237	/* note: this locks both the calling module and the processor module
	238	if a _PPC object exists, rmmod is disallowed then */
	239	int acpi_processor_notify_smm(struct module *calling_module);
	240
1da177e4	241	/* for communication between multiple parts of the processor kernel module */
706546d0	242	DECLARE_PER_CPU(struct acpi_processor *, processors);
1da177e4 LT	243	extern struct acpi_processor_errata errata;
1da177e4 LT	244
05131ecc	245	#ifdef ARCH_HAS_POWER_INIT
02df8b93	246	void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
4be44fcd	247	unsigned int cpu);
991528d7	248	int acpi_processor_ffh_cstate_probe(unsigned int cpu,
fd350943 LB	249	struct acpi_processor_cx *cx,
fd350943 LB	250	struct acpi_power_register *reg);
991528d7	251	void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cstate);
02df8b93	252	#else
4be44fcd LB	253	static inline void acpi_processor_power_init_bm_check(struct
	254	acpi_processor_flags
	255	*flags, unsigned int cpu)
02df8b93 VP	256	{
	257	flags->bm_check = 1;
	258	return;
	259	}
991528d7	260	static inline int acpi_processor_ffh_cstate_probe(unsigned int cpu,
fd350943 LB	261	struct acpi_processor_cx *cx,
	262	struct acpi_power_register
	263	*reg)
991528d7 VP	264	{
	265	return -1;
	266	}
fd350943 LB	267	static inline void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx
fd350943 LB	268	*cstate)
991528d7 VP	269	{
	270	return;
	271	}
02df8b93 VP	272	#endif
02df8b93 VP	273
1da177e4	274	/* in processor_perflib.c */
02df8b93	275
1da177e4 LT	276	#ifdef CONFIG_CPU_FREQ
	277	void acpi_processor_ppc_init(void);
	278	void acpi_processor_ppc_exit(void);
d81c45e1	279	int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag);
e2f74f35	280	extern int acpi_processor_get_bios_limit(int cpu, unsigned int *limit);
1da177e4	281	#else
4be44fcd LB	282	static inline void acpi_processor_ppc_init(void)
	283	{
	284	return;
	285	}
	286	static inline void acpi_processor_ppc_exit(void)
	287	{
	288	return;
	289	}
d81c45e1 ZY	290	static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr,
d81c45e1 ZY	291	int event_flag)
4be44fcd	292	{
1da177e4 LT	293	static unsigned int printout = 1;
1da177e4 LT	294	if (printout) {
4be44fcd LB	295	printk(KERN_WARNING
	296	"Warning: Processor Platform Limit event detected, but not handled.\n");
	297	printk(KERN_WARNING
	298	"Consider compiling CPUfreq support into your kernel.\n");
1da177e4 LT	299	printout = 0;
	300	}
	301	return 0;
	302	}
e2f74f35 TR	303	static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
	304	{
	305	return -ENODEV;
	306	}
	307
4be44fcd	308	#endif /* CONFIG_CPU_FREQ */
1da177e4	309
4d5d4cd8	310	/* in processor_core.c */
43bab25c	311	void acpi_processor_set_pdc(acpi_handle handle);
2e9d5e4e AC	312	#ifdef CONFIG_SMP
	313	int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
	314	#else
	315	static inline int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id)
	316	{
	317	return -1;
	318	}
	319	#endif
78f16996	320
1da177e4	321	/* in processor_throttling.c */
a66b34b2	322	int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
4be44fcd	323	int acpi_processor_get_throttling_info(struct acpi_processor *pr);
2a908002 FP	324	extern int acpi_processor_set_throttling(struct acpi_processor *pr,
2a908002 FP	325	int state, bool force);
070d8eb1	326	extern const struct file_operations acpi_processor_throttling_fops;
1180509f	327	extern void acpi_processor_throttling_init(void);
1da177e4	328	/* in processor_idle.c */
4be44fcd LB	329	int acpi_processor_power_init(struct acpi_processor *pr,
	330	struct acpi_device *device);
	331	int acpi_processor_cst_has_changed(struct acpi_processor *pr);
	332	int acpi_processor_power_exit(struct acpi_processor *pr,
	333	struct acpi_device *device);
b04e7bdb TG	334	int acpi_processor_suspend(struct acpi_device * device, pm_message_t state);
b04e7bdb TG	335	int acpi_processor_resume(struct acpi_device * device);
4f86d3a8	336	extern struct cpuidle_driver acpi_idle_driver;
1da177e4 LT	337
1da177e4 LT	338	/* in processor_thermal.c */
4be44fcd	339	int acpi_processor_get_limit_info(struct acpi_processor *pr);
070d8eb1	340	extern const struct file_operations acpi_processor_limit_fops;
d9460fd2	341	extern struct thermal_cooling_device_ops processor_cooling_ops;
1da177e4 LT	342	#ifdef CONFIG_CPU_FREQ
	343	void acpi_thermal_cpufreq_init(void);
	344	void acpi_thermal_cpufreq_exit(void);
	345	#else
4be44fcd LB	346	static inline void acpi_thermal_cpufreq_init(void)
	347	{
	348	return;
	349	}
	350	static inline void acpi_thermal_cpufreq_exit(void)
	351	{
	352	return;
	353	}
1da177e4 LT	354	#endif
1da177e4 LT	355
1da177e4	356	#endif