[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 access_size;
	u64 address;
} __attribute__ ((packed));

struct acpi_processor_cx {
	u8 valid;
	u8 type;
	u32 address;
	u8 entry_method;
	u8 index;
	u32 latency;
	u32 power;
	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;
	u8 need_hotplug_init: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 void acpi_processor_load_module(struct acpi_processor *pr);
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);
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_hotplug(struct acpi_processor *pr);
int acpi_processor_power_exit(struct acpi_processor *pr,
			      struct acpi_device *device);
int acpi_processor_suspend(struct device *dev);
int acpi_processor_resume(struct device *dev);
extern struct cpuidle_driver acpi_idle_driver;

/* in processor_thermal.c */
int acpi_processor_get_limit_info(struct acpi_processor *pr);
extern const 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;
718be4aa	51	u8 access_size;
4be44fcd	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	61	u32 latency;
4be44fcd	62	u32 power;
718be4aa	63	u8 bm_sts_skip;
4fcb2fcd	64	char desc[ACPI_CX_DESC_LEN];
1da177e4 LT	65	};
	66
	67	struct acpi_processor_power {
4f86d3a8	68	struct cpuidle_device dev;
1da177e4	69	struct acpi_processor_cx *state;
4be44fcd LB	70	unsigned long bm_check_timestamp;
4be44fcd LB	71	u32 default_state;
4be44fcd	72	int count;
1da177e4	73	struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
169a0abb	74	int timer_broadcast_on_state;
1da177e4 LT	75	};
	76
	77	/* Performance Management */
	78
3b2d9942	79	struct acpi_psd_package {
439913ff LM	80	u64 num_entries;
	81	u64 revision;
	82	u64 domain;
	83	u64 coord_type;
	84	u64 num_processors;
3b2d9942 VP	85	} __attribute__ ((packed));
3b2d9942 VP	86
1da177e4	87	struct acpi_pct_register {
4be44fcd LB	88	u8 descriptor;
	89	u16 length;
	90	u8 space_id;
	91	u8 bit_width;
	92	u8 bit_offset;
	93	u8 reserved;
	94	u64 address;
1da177e4 LT	95	} __attribute__ ((packed));
	96
	97	struct acpi_processor_px {
439913ff LM	98	u64 core_frequency; /* megahertz */
	99	u64 power; /* milliWatts */
	100	u64 transition_latency; /* microseconds */
	101	u64 bus_master_latency; /* microseconds */
	102	u64 control; /* control value */
	103	u64 status; /* success indicator */
1da177e4 LT	104	};
1da177e4 LT	105
1da177e4	106	struct acpi_processor_performance {
4be44fcd LB	107	unsigned int state;
4be44fcd LB	108	unsigned int platform_limit;
1da177e4 LT	109	struct acpi_pct_register control_register;
1da177e4 LT	110	struct acpi_pct_register status_register;
4be44fcd	111	unsigned int state_count;
1da177e4	112	struct acpi_processor_px *states;
3b2d9942	113	struct acpi_psd_package domain_info;
2fdf66b4	114	cpumask_var_t shared_cpu_map;
3b2d9942	115	unsigned int shared_type;
1da177e4 LT	116	};
1da177e4 LT	117
1da177e4 LT	118	/* Throttling Control */
1da177e4 LT	119
01854e69	120	struct acpi_tsd_package {
439913ff LM	121	u64 num_entries;
	122	u64 revision;
	123	u64 domain;
	124	u64 coord_type;
	125	u64 num_processors;
01854e69 LY	126	} __attribute__ ((packed));
	127
	128	struct acpi_ptc_register {
	129	u8 descriptor;
	130	u16 length;
	131	u8 space_id;
	132	u8 bit_width;
	133	u8 bit_offset;
	134	u8 reserved;
	135	u64 address;
	136	} __attribute__ ((packed));
	137
	138	struct acpi_processor_tx_tss {
439913ff LM	139	u64 freqpercentage; /* */
	140	u64 power; /* milliWatts */
	141	u64 transition_latency; /* microseconds */
	142	u64 control; /* control value */
	143	u64 status; /* success indicator */
01854e69	144	};
1da177e4	145	struct acpi_processor_tx {
4be44fcd LB	146	u16 power;
4be44fcd LB	147	u16 performance;
1da177e4 LT	148	};
1da177e4 LT	149
01854e69	150	struct acpi_processor;
1da177e4	151	struct acpi_processor_throttling {
01854e69 LY	152	unsigned int state;
	153	unsigned int platform_limit;
	154	struct acpi_pct_register control_register;
	155	struct acpi_pct_register status_register;
	156	unsigned int state_count;
	157	struct acpi_processor_tx_tss *states_tss;
	158	struct acpi_tsd_package domain_info;
2fdf66b4	159	cpumask_var_t shared_cpu_map;
ff55a9ce LB	160	int (acpi_processor_get_throttling) (struct acpi_processor pr);
ff55a9ce LB	161	int (acpi_processor_set_throttling) (struct acpi_processor pr,
2a908002	162	int state, bool force);
01854e69	163
4be44fcd LB	164	u32 address;
	165	u8 duty_offset;
	166	u8 duty_width;
1180509f ZY	167	u8 tsd_valid_flag;
1180509f ZY	168	unsigned int shared_type;
1da177e4 LT	169	struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
	170	};
	171
	172	/* Limit Interface */
	173
	174	struct acpi_processor_lx {
aee07ba6	175	int px; /* performance state */
4be44fcd	176	int tx; /* throttle level */
1da177e4 LT	177	};
	178
	179	struct acpi_processor_limit {
4be44fcd	180	struct acpi_processor_lx state; /* current limit */
1da177e4	181	struct acpi_processor_lx thermal; /* thermal limit */
4be44fcd	182	struct acpi_processor_lx user; /* user limit */
1da177e4 LT	183	};
1da177e4 LT	184
1da177e4	185	struct acpi_processor_flags {
4be44fcd LB	186	u8 power:1;
	187	u8 performance:1;
	188	u8 throttling:1;
	189	u8 limit:1;
	190	u8 bm_control:1;
	191	u8 bm_check:1;
	192	u8 has_cst:1;
	193	u8 power_setup_done:1;
4f86d3a8	194	u8 bm_rld_set:1;
99b72508	195	u8 need_hotplug_init:1;
1da177e4 LT	196	};
	197
	198	struct acpi_processor {
4be44fcd LB	199	acpi_handle handle;
	200	u32 acpi_id;
	201	u32 id;
	202	u32 pblk;
	203	int performance_platform_limit;
01854e69	204	int throttling_platform_limit;
ff55a9ce	205	/* 0 - states 0..n-th state available */
01854e69	206
1da177e4 LT	207	struct acpi_processor_flags flags;
	208	struct acpi_processor_power power;
	209	struct acpi_processor_performance *performance;
	210	struct acpi_processor_throttling throttling;
	211	struct acpi_processor_limit limit;
d9460fd2	212	struct thermal_cooling_device *cdev;
1da177e4 LT	213	};
	214
	215	struct acpi_processor_errata {
4be44fcd	216	u8 smp;
1da177e4	217	struct {
4be44fcd LB	218	u8 throttle:1;
	219	u8 fdma:1;
	220	u8 reserved:6;
	221	u32 bmisx;
	222	} piix4;
1da177e4 LT	223	};
1da177e4 LT	224
9061e0e1	225	extern void acpi_processor_load_module(struct acpi_processor *pr);
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	312	int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
78f16996	313
1da177e4	314	/* in processor_throttling.c */
a66b34b2	315	int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
4be44fcd	316	int acpi_processor_get_throttling_info(struct acpi_processor *pr);
2a908002 FP	317	extern int acpi_processor_set_throttling(struct acpi_processor *pr,
2a908002 FP	318	int state, bool force);
5a344a50 ZY	319	/*
	320	* Reevaluate whether the T-state is invalid after one cpu is
	321	* onlined/offlined. In such case the flags.throttling will be updated.
	322	*/
	323	extern void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,
	324	unsigned long action);
070d8eb1	325	extern const struct file_operations acpi_processor_throttling_fops;
1180509f	326	extern void acpi_processor_throttling_init(void);
1da177e4	327	/* in processor_idle.c */
4be44fcd LB	328	int acpi_processor_power_init(struct acpi_processor *pr,
	329	struct acpi_device *device);
	330	int acpi_processor_cst_has_changed(struct acpi_processor *pr);
46bcfad7	331	int acpi_processor_hotplug(struct acpi_processor *pr);
4be44fcd LB	332	int acpi_processor_power_exit(struct acpi_processor *pr,
4be44fcd LB	333	struct acpi_device *device);
e8110b64 RW	334	int acpi_processor_suspend(struct device *dev);
e8110b64 RW	335	int acpi_processor_resume(struct device *dev);
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);
9c8b04be	340	extern const struct thermal_cooling_device_ops processor_cooling_ops;
1da177e4 LT	341	#ifdef CONFIG_CPU_FREQ
	342	void acpi_thermal_cpufreq_init(void);
	343	void acpi_thermal_cpufreq_exit(void);
	344	#else
4be44fcd LB	345	static inline void acpi_thermal_cpufreq_init(void)
	346	{
	347	return;
	348	}
	349	static inline void acpi_thermal_cpufreq_exit(void)
	350	{
	351	return;
	352	}
1da177e4 LT	353	#endif
1da177e4 LT	354
1da177e4	355	#endif