[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 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;
	u8 entry_method;
	u8 index;
	u32 latency;
	u32 latency_ticks;
	u32 power;
	u32 usage;
	u64 time;
	struct acpi_processor_cx_policy promotion;
	struct acpi_processor_cx_policy demotion;
	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 {
	acpi_integer num_entries;
	acpi_integer revision;
	acpi_integer domain;
	acpi_integer coord_type;
	acpi_integer 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 {
	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;
	struct acpi_psd_package domain_info;
	cpumask_var_t shared_cpu_map;
	unsigned int shared_type;
};

/* Throttling Control */

struct acpi_tsd_package {
	acpi_integer num_entries;
	acpi_integer revision;
	acpi_integer domain;
	acpi_integer coord_type;
	acpi_integer 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 {
	acpi_integer freqpercentage;	/* */
	acpi_integer power;	/* milliWatts */
	acpi_integer transition_latency;	/* microseconds */
	acpi_integer control;	/* control value */
	acpi_integer 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;
	/* 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_preregister_performance(struct
						  acpi_processor_performance
						  *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;

void arch_acpi_processor_init_pdc(struct acpi_processor *pr);
void arch_acpi_processor_cleanup_pdc(struct acpi_processor *pr);

#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_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_policy {
4be44fcd	56	u32 count;
1da177e4 LT	57	struct acpi_processor_cx *state;
1da177e4 LT	58	struct {
4be44fcd LB	59	u32 time;
	60	u32 ticks;
	61	u32 count;
	62	u32 bm;
	63	} threshold;
1da177e4 LT	64	};
	65
	66	struct acpi_processor_cx {
4be44fcd LB	67	u8 valid;
	68	u8 type;
	69	u32 address;
bc71bec9	70	u8 entry_method;
991528d7	71	u8 index;
4be44fcd LB	72	u32 latency;
	73	u32 latency_ticks;
	74	u32 power;
	75	u32 usage;
a3c6598f	76	u64 time;
1da177e4 LT	77	struct acpi_processor_cx_policy promotion;
1da177e4 LT	78	struct acpi_processor_cx_policy demotion;
4fcb2fcd	79	char desc[ACPI_CX_DESC_LEN];
1da177e4 LT	80	};
	81
	82	struct acpi_processor_power {
4f86d3a8	83	struct cpuidle_device dev;
1da177e4	84	struct acpi_processor_cx *state;
4be44fcd LB	85	unsigned long bm_check_timestamp;
4be44fcd LB	86	u32 default_state;
4be44fcd	87	int count;
1da177e4	88	struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
169a0abb	89	int timer_broadcast_on_state;
1da177e4 LT	90	};
	91
	92	/* Performance Management */
	93
3b2d9942 VP	94	struct acpi_psd_package {
	95	acpi_integer num_entries;
	96	acpi_integer revision;
	97	acpi_integer domain;
	98	acpi_integer coord_type;
	99	acpi_integer num_processors;
	100	} __attribute__ ((packed));
	101
1da177e4	102	struct acpi_pct_register {
4be44fcd LB	103	u8 descriptor;
	104	u16 length;
	105	u8 space_id;
	106	u8 bit_width;
	107	u8 bit_offset;
	108	u8 reserved;
	109	u64 address;
1da177e4 LT	110	} __attribute__ ((packed));
	111
	112	struct acpi_processor_px {
4be44fcd LB	113	acpi_integer core_frequency; /* megahertz */
	114	acpi_integer power; /* milliWatts */
	115	acpi_integer transition_latency; /* microseconds */
	116	acpi_integer bus_master_latency; /* microseconds */
	117	acpi_integer control; /* control value */
	118	acpi_integer status; /* success indicator */
1da177e4 LT	119	};
1da177e4 LT	120
1da177e4	121	struct acpi_processor_performance {
4be44fcd LB	122	unsigned int state;
4be44fcd LB	123	unsigned int platform_limit;
1da177e4 LT	124	struct acpi_pct_register control_register;
1da177e4 LT	125	struct acpi_pct_register status_register;
4be44fcd	126	unsigned int state_count;
1da177e4	127	struct acpi_processor_px *states;
3b2d9942	128	struct acpi_psd_package domain_info;
2fdf66b4	129	cpumask_var_t shared_cpu_map;
3b2d9942	130	unsigned int shared_type;
1da177e4 LT	131	};
1da177e4 LT	132
1da177e4 LT	133	/* Throttling Control */
1da177e4 LT	134
01854e69 LY	135	struct acpi_tsd_package {
	136	acpi_integer num_entries;
	137	acpi_integer revision;
	138	acpi_integer domain;
	139	acpi_integer coord_type;
	140	acpi_integer num_processors;
	141	} __attribute__ ((packed));
	142
	143	struct acpi_ptc_register {
	144	u8 descriptor;
	145	u16 length;
	146	u8 space_id;
	147	u8 bit_width;
	148	u8 bit_offset;
	149	u8 reserved;
	150	u64 address;
	151	} __attribute__ ((packed));
	152
	153	struct acpi_processor_tx_tss {
	154	acpi_integer freqpercentage; /* */
	155	acpi_integer power; /* milliWatts */
	156	acpi_integer transition_latency; /* microseconds */
	157	acpi_integer control; /* control value */
	158	acpi_integer status; /* success indicator */
	159	};
1da177e4	160	struct acpi_processor_tx {
4be44fcd LB	161	u16 power;
4be44fcd LB	162	u16 performance;
1da177e4 LT	163	};
1da177e4 LT	164
01854e69	165	struct acpi_processor;
1da177e4	166	struct acpi_processor_throttling {
01854e69 LY	167	unsigned int state;
	168	unsigned int platform_limit;
	169	struct acpi_pct_register control_register;
	170	struct acpi_pct_register status_register;
	171	unsigned int state_count;
	172	struct acpi_processor_tx_tss *states_tss;
	173	struct acpi_tsd_package domain_info;
2fdf66b4	174	cpumask_var_t shared_cpu_map;
ff55a9ce LB	175	int (acpi_processor_get_throttling) (struct acpi_processor pr);
ff55a9ce LB	176	int (acpi_processor_set_throttling) (struct acpi_processor pr,
2a908002	177	int state, bool force);
01854e69	178
4be44fcd LB	179	u32 address;
	180	u8 duty_offset;
	181	u8 duty_width;
1180509f ZY	182	u8 tsd_valid_flag;
1180509f ZY	183	unsigned int shared_type;
1da177e4 LT	184	struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
	185	};
	186
	187	/* Limit Interface */
	188
	189	struct acpi_processor_lx {
aee07ba6	190	int px; /* performance state */
4be44fcd	191	int tx; /* throttle level */
1da177e4 LT	192	};
	193
	194	struct acpi_processor_limit {
4be44fcd	195	struct acpi_processor_lx state; /* current limit */
1da177e4	196	struct acpi_processor_lx thermal; /* thermal limit */
4be44fcd	197	struct acpi_processor_lx user; /* user limit */
1da177e4 LT	198	};
1da177e4 LT	199
1da177e4	200	struct acpi_processor_flags {
4be44fcd LB	201	u8 power:1;
	202	u8 performance:1;
	203	u8 throttling:1;
	204	u8 limit:1;
	205	u8 bm_control:1;
	206	u8 bm_check:1;
	207	u8 has_cst:1;
	208	u8 power_setup_done:1;
4f86d3a8	209	u8 bm_rld_set:1;
1da177e4 LT	210	};
	211
	212	struct acpi_processor {
4be44fcd LB	213	acpi_handle handle;
	214	u32 acpi_id;
	215	u32 id;
	216	u32 pblk;
	217	int performance_platform_limit;
01854e69	218	int throttling_platform_limit;
ff55a9ce	219	/* 0 - states 0..n-th state available */
01854e69	220
1da177e4 LT	221	struct acpi_processor_flags flags;
	222	struct acpi_processor_power power;
	223	struct acpi_processor_performance *performance;
	224	struct acpi_processor_throttling throttling;
	225	struct acpi_processor_limit limit;
d9460fd2	226	struct thermal_cooling_device *cdev;
05131ecc VP	227	/* the _PDC objects for this processor, if any */
05131ecc VP	228	struct acpi_object_list *pdc;
1da177e4 LT	229	};
	230
	231	struct acpi_processor_errata {
4be44fcd	232	u8 smp;
1da177e4	233	struct {
4be44fcd LB	234	u8 throttle:1;
	235	u8 fdma:1;
	236	u8 reserved:6;
	237	u32 bmisx;
	238	} piix4;
1da177e4 LT	239	};
1da177e4 LT	240
fd350943 LB	241	extern int acpi_processor_preregister_performance(struct
fd350943 LB	242	acpi_processor_performance
50109292	243	*performance);
3b2d9942	244
4be44fcd LB	245	extern int acpi_processor_register_performance(struct acpi_processor_performance
	246	*performance, unsigned int cpu);
	247	extern void acpi_processor_unregister_performance(struct
	248	acpi_processor_performance
	249	*performance,
	250	unsigned int cpu);
1da177e4 LT	251
	252	/* note: this locks both the calling module and the processor module
	253	if a _PPC object exists, rmmod is disallowed then */
	254	int acpi_processor_notify_smm(struct module *calling_module);
	255
1da177e4	256	/* for communication between multiple parts of the processor kernel module */
706546d0	257	DECLARE_PER_CPU(struct acpi_processor *, processors);
1da177e4 LT	258	extern struct acpi_processor_errata errata;
1da177e4 LT	259
05131ecc	260	void arch_acpi_processor_init_pdc(struct acpi_processor *pr);
7b768f07	261	void arch_acpi_processor_cleanup_pdc(struct acpi_processor *pr);
02df8b93	262
05131ecc	263	#ifdef ARCH_HAS_POWER_INIT
02df8b93	264	void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
4be44fcd	265	unsigned int cpu);
991528d7	266	int acpi_processor_ffh_cstate_probe(unsigned int cpu,
fd350943 LB	267	struct acpi_processor_cx *cx,
fd350943 LB	268	struct acpi_power_register *reg);
991528d7	269	void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cstate);
02df8b93	270	#else
4be44fcd LB	271	static inline void acpi_processor_power_init_bm_check(struct
	272	acpi_processor_flags
	273	*flags, unsigned int cpu)
02df8b93 VP	274	{
	275	flags->bm_check = 1;
	276	return;
	277	}
991528d7	278	static inline int acpi_processor_ffh_cstate_probe(unsigned int cpu,
fd350943 LB	279	struct acpi_processor_cx *cx,
	280	struct acpi_power_register
	281	*reg)
991528d7 VP	282	{
	283	return -1;
	284	}
fd350943 LB	285	static inline void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx
fd350943 LB	286	*cstate)
991528d7 VP	287	{
	288	return;
	289	}
02df8b93 VP	290	#endif
02df8b93 VP	291
1da177e4	292	/* in processor_perflib.c */
02df8b93	293
1da177e4 LT	294	#ifdef CONFIG_CPU_FREQ
	295	void acpi_processor_ppc_init(void);
	296	void acpi_processor_ppc_exit(void);
d81c45e1	297	int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag);
e2f74f35	298	extern int acpi_processor_get_bios_limit(int cpu, unsigned int *limit);
1da177e4	299	#else
4be44fcd LB	300	static inline void acpi_processor_ppc_init(void)
	301	{
	302	return;
	303	}
	304	static inline void acpi_processor_ppc_exit(void)
	305	{
	306	return;
	307	}
d81c45e1 ZY	308	static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr,
d81c45e1 ZY	309	int event_flag)
4be44fcd	310	{
1da177e4 LT	311	static unsigned int printout = 1;
1da177e4 LT	312	if (printout) {
4be44fcd LB	313	printk(KERN_WARNING
	314	"Warning: Processor Platform Limit event detected, but not handled.\n");
	315	printk(KERN_WARNING
	316	"Consider compiling CPUfreq support into your kernel.\n");
1da177e4 LT	317	printout = 0;
	318	}
	319	return 0;
	320	}
e2f74f35 TR	321	static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
	322	{
	323	return -ENODEV;
	324	}
	325
4be44fcd	326	#endif /* CONFIG_CPU_FREQ */
1da177e4 LT	327
1da177e4 LT	328	/* in processor_throttling.c */
a66b34b2	329	int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
4be44fcd	330	int acpi_processor_get_throttling_info(struct acpi_processor *pr);
2a908002 FP	331	extern int acpi_processor_set_throttling(struct acpi_processor *pr,
2a908002 FP	332	int state, bool force);
070d8eb1	333	extern const struct file_operations acpi_processor_throttling_fops;
1180509f	334	extern void acpi_processor_throttling_init(void);
1da177e4	335	/* in processor_idle.c */
4be44fcd LB	336	int acpi_processor_power_init(struct acpi_processor *pr,
	337	struct acpi_device *device);
	338	int acpi_processor_cst_has_changed(struct acpi_processor *pr);
	339	int acpi_processor_power_exit(struct acpi_processor *pr,
	340	struct acpi_device *device);
b04e7bdb TG	341	int acpi_processor_suspend(struct acpi_device * device, pm_message_t state);
b04e7bdb TG	342	int acpi_processor_resume(struct acpi_device * device);
4f86d3a8	343	extern struct cpuidle_driver acpi_idle_driver;
1da177e4 LT	344
1da177e4 LT	345	/* in processor_thermal.c */
4be44fcd	346	int acpi_processor_get_limit_info(struct acpi_processor *pr);
070d8eb1	347	extern const struct file_operations acpi_processor_limit_fops;
d9460fd2	348	extern struct thermal_cooling_device_ops processor_cooling_ops;
1da177e4 LT	349	#ifdef CONFIG_CPU_FREQ
	350	void acpi_thermal_cpufreq_init(void);
	351	void acpi_thermal_cpufreq_exit(void);
	352	#else
4be44fcd LB	353	static inline void acpi_thermal_cpufreq_init(void)
	354	{
	355	return;
	356	}
	357	static inline void acpi_thermal_cpufreq_exit(void)
	358	{
	359	return;
	360	}
1da177e4 LT	361	#endif
1da177e4 LT	362
1da177e4	363	#endif