[GitHub/mt8127/android_kernel_alcatel_ttab.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 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_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_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 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 LB	61	u32 latency;
	62	u32 latency_ticks;
	63	u32 power;
	64	u32 usage;
a3c6598f	65	u64 time;
718be4aa	66	u8 bm_sts_skip;
4fcb2fcd	67	char desc[ACPI_CX_DESC_LEN];
1da177e4 LT	68	};
	69
	70	struct acpi_processor_power {
4f86d3a8	71	struct cpuidle_device dev;
1da177e4	72	struct acpi_processor_cx *state;
4be44fcd LB	73	unsigned long bm_check_timestamp;
4be44fcd LB	74	u32 default_state;
4be44fcd	75	int count;
1da177e4	76	struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
169a0abb	77	int timer_broadcast_on_state;
1da177e4 LT	78	};
	79
	80	/* Performance Management */
	81
3b2d9942	82	struct acpi_psd_package {
439913ff LM	83	u64 num_entries;
	84	u64 revision;
	85	u64 domain;
	86	u64 coord_type;
	87	u64 num_processors;
3b2d9942 VP	88	} __attribute__ ((packed));
3b2d9942 VP	89
1da177e4	90	struct acpi_pct_register {
4be44fcd LB	91	u8 descriptor;
	92	u16 length;
	93	u8 space_id;
	94	u8 bit_width;
	95	u8 bit_offset;
	96	u8 reserved;
	97	u64 address;
1da177e4 LT	98	} __attribute__ ((packed));
	99
	100	struct acpi_processor_px {
439913ff LM	101	u64 core_frequency; /* megahertz */
	102	u64 power; /* milliWatts */
	103	u64 transition_latency; /* microseconds */
	104	u64 bus_master_latency; /* microseconds */
	105	u64 control; /* control value */
	106	u64 status; /* success indicator */
1da177e4 LT	107	};
1da177e4 LT	108
1da177e4	109	struct acpi_processor_performance {
4be44fcd LB	110	unsigned int state;
4be44fcd LB	111	unsigned int platform_limit;
1da177e4 LT	112	struct acpi_pct_register control_register;
1da177e4 LT	113	struct acpi_pct_register status_register;
4be44fcd	114	unsigned int state_count;
1da177e4	115	struct acpi_processor_px *states;
3b2d9942	116	struct acpi_psd_package domain_info;
2fdf66b4	117	cpumask_var_t shared_cpu_map;
3b2d9942	118	unsigned int shared_type;
1da177e4 LT	119	};
1da177e4 LT	120
1da177e4 LT	121	/* Throttling Control */
1da177e4 LT	122
01854e69	123	struct acpi_tsd_package {
439913ff LM	124	u64 num_entries;
	125	u64 revision;
	126	u64 domain;
	127	u64 coord_type;
	128	u64 num_processors;
01854e69 LY	129	} __attribute__ ((packed));
	130
	131	struct acpi_ptc_register {
	132	u8 descriptor;
	133	u16 length;
	134	u8 space_id;
	135	u8 bit_width;
	136	u8 bit_offset;
	137	u8 reserved;
	138	u64 address;
	139	} __attribute__ ((packed));
	140
	141	struct acpi_processor_tx_tss {
439913ff LM	142	u64 freqpercentage; /* */
	143	u64 power; /* milliWatts */
	144	u64 transition_latency; /* microseconds */
	145	u64 control; /* control value */
	146	u64 status; /* success indicator */
01854e69	147	};
1da177e4	148	struct acpi_processor_tx {
4be44fcd LB	149	u16 power;
4be44fcd LB	150	u16 performance;
1da177e4 LT	151	};
1da177e4 LT	152
01854e69	153	struct acpi_processor;
1da177e4	154	struct acpi_processor_throttling {
01854e69 LY	155	unsigned int state;
	156	unsigned int platform_limit;
	157	struct acpi_pct_register control_register;
	158	struct acpi_pct_register status_register;
	159	unsigned int state_count;
	160	struct acpi_processor_tx_tss *states_tss;
	161	struct acpi_tsd_package domain_info;
2fdf66b4	162	cpumask_var_t shared_cpu_map;
ff55a9ce LB	163	int (acpi_processor_get_throttling) (struct acpi_processor pr);
ff55a9ce LB	164	int (acpi_processor_set_throttling) (struct acpi_processor pr,
2a908002	165	int state, bool force);
01854e69	166
4be44fcd LB	167	u32 address;
	168	u8 duty_offset;
	169	u8 duty_width;
1180509f ZY	170	u8 tsd_valid_flag;
1180509f ZY	171	unsigned int shared_type;
1da177e4 LT	172	struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
	173	};
	174
	175	/* Limit Interface */
	176
	177	struct acpi_processor_lx {
aee07ba6	178	int px; /* performance state */
4be44fcd	179	int tx; /* throttle level */
1da177e4 LT	180	};
	181
	182	struct acpi_processor_limit {
4be44fcd	183	struct acpi_processor_lx state; /* current limit */
1da177e4	184	struct acpi_processor_lx thermal; /* thermal limit */
4be44fcd	185	struct acpi_processor_lx user; /* user limit */
1da177e4 LT	186	};
1da177e4 LT	187
1da177e4	188	struct acpi_processor_flags {
4be44fcd LB	189	u8 power:1;
	190	u8 performance:1;
	191	u8 throttling:1;
	192	u8 limit:1;
	193	u8 bm_control:1;
	194	u8 bm_check:1;
	195	u8 has_cst:1;
	196	u8 power_setup_done:1;
4f86d3a8	197	u8 bm_rld_set:1;
1da177e4 LT	198	};
	199
	200	struct acpi_processor {
4be44fcd LB	201	acpi_handle handle;
	202	u32 acpi_id;
	203	u32 id;
	204	u32 pblk;
	205	int performance_platform_limit;
01854e69	206	int throttling_platform_limit;
ff55a9ce	207	/* 0 - states 0..n-th state available */
01854e69	208
1da177e4 LT	209	struct acpi_processor_flags flags;
	210	struct acpi_processor_power power;
	211	struct acpi_processor_performance *performance;
	212	struct acpi_processor_throttling throttling;
	213	struct acpi_processor_limit limit;
d9460fd2	214	struct thermal_cooling_device *cdev;
1da177e4 LT	215	};
	216
	217	struct acpi_processor_errata {
4be44fcd	218	u8 smp;
1da177e4	219	struct {
4be44fcd LB	220	u8 throttle:1;
	221	u8 fdma:1;
	222	u8 reserved:6;
	223	u32 bmisx;
	224	} piix4;
1da177e4 LT	225	};
1da177e4 LT	226
fd350943 LB	227	extern int acpi_processor_preregister_performance(struct
fd350943 LB	228	acpi_processor_performance
a29d8b8e	229	__percpu *performance);
3b2d9942	230
4be44fcd LB	231	extern int acpi_processor_register_performance(struct acpi_processor_performance
	232	*performance, unsigned int cpu);
	233	extern void acpi_processor_unregister_performance(struct
	234	acpi_processor_performance
	235	*performance,
	236	unsigned int cpu);
1da177e4 LT	237
	238	/* note: this locks both the calling module and the processor module
	239	if a _PPC object exists, rmmod is disallowed then */
	240	int acpi_processor_notify_smm(struct module *calling_module);
	241
1da177e4	242	/* for communication between multiple parts of the processor kernel module */
706546d0	243	DECLARE_PER_CPU(struct acpi_processor *, processors);
1da177e4 LT	244	extern struct acpi_processor_errata errata;
1da177e4 LT	245
05131ecc	246	#ifdef ARCH_HAS_POWER_INIT
02df8b93	247	void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
4be44fcd	248	unsigned int cpu);
991528d7	249	int acpi_processor_ffh_cstate_probe(unsigned int cpu,
fd350943 LB	250	struct acpi_processor_cx *cx,
fd350943 LB	251	struct acpi_power_register *reg);
991528d7	252	void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cstate);
02df8b93	253	#else
4be44fcd LB	254	static inline void acpi_processor_power_init_bm_check(struct
	255	acpi_processor_flags
	256	*flags, unsigned int cpu)
02df8b93 VP	257	{
	258	flags->bm_check = 1;
	259	return;
	260	}
991528d7	261	static inline int acpi_processor_ffh_cstate_probe(unsigned int cpu,
fd350943 LB	262	struct acpi_processor_cx *cx,
	263	struct acpi_power_register
	264	*reg)
991528d7 VP	265	{
	266	return -1;
	267	}
fd350943 LB	268	static inline void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx
fd350943 LB	269	*cstate)
991528d7 VP	270	{
	271	return;
	272	}
02df8b93 VP	273	#endif
02df8b93 VP	274
1da177e4	275	/* in processor_perflib.c */
02df8b93	276
1da177e4 LT	277	#ifdef CONFIG_CPU_FREQ
	278	void acpi_processor_ppc_init(void);
	279	void acpi_processor_ppc_exit(void);
d81c45e1	280	int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag);
e2f74f35	281	extern int acpi_processor_get_bios_limit(int cpu, unsigned int *limit);
1da177e4	282	#else
4be44fcd LB	283	static inline void acpi_processor_ppc_init(void)
	284	{
	285	return;
	286	}
	287	static inline void acpi_processor_ppc_exit(void)
	288	{
	289	return;
	290	}
d81c45e1 ZY	291	static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr,
d81c45e1 ZY	292	int event_flag)
4be44fcd	293	{
1da177e4 LT	294	static unsigned int printout = 1;
1da177e4 LT	295	if (printout) {
4be44fcd LB	296	printk(KERN_WARNING
	297	"Warning: Processor Platform Limit event detected, but not handled.\n");
	298	printk(KERN_WARNING
	299	"Consider compiling CPUfreq support into your kernel.\n");
1da177e4 LT	300	printout = 0;
	301	}
	302	return 0;
	303	}
e2f74f35 TR	304	static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
	305	{
	306	return -ENODEV;
	307	}
	308
4be44fcd	309	#endif /* CONFIG_CPU_FREQ */
1da177e4	310
4d5d4cd8	311	/* in processor_core.c */
43bab25c	312	void acpi_processor_set_pdc(acpi_handle handle);
2e9d5e4e	313	int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
78f16996	314
1da177e4	315	/* in processor_throttling.c */
a66b34b2	316	int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
4be44fcd	317	int acpi_processor_get_throttling_info(struct acpi_processor *pr);
2a908002 FP	318	extern int acpi_processor_set_throttling(struct acpi_processor *pr,
2a908002 FP	319	int state, bool force);
5a344a50 ZY	320	/*
	321	* Reevaluate whether the T-state is invalid after one cpu is
	322	* onlined/offlined. In such case the flags.throttling will be updated.
	323	*/
	324	extern void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,
	325	unsigned long action);
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);
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