[linux-2.6-block.git] / include / acpi / processor.h

#ifndef __ACPI_PROCESSOR_H
#define __ACPI_PROCESSOR_H

#include <linux/kernel.h>
#include <linux/cpu.h>
#include <linux/thermal.h>
#include <asm/acpi.h>

#define ACPI_PROCESSOR_CLASS		"processor"
#define ACPI_PROCESSOR_DEVICE_NAME	"Processor"
#define ACPI_PROCESSOR_DEVICE_HID	"ACPI0007"

#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;
} __packed;

struct acpi_processor_cx {
	u8 valid;
	u8 type;
	u32 address;
	u8 entry_method;
	u8 index;
	u32 latency;
	u8 bm_sts_skip;
	char desc[ACPI_CX_DESC_LEN];
};

struct acpi_processor_power {
	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;
} __packed;

struct acpi_pct_register {
	u8 descriptor;
	u16 length;
	u8 space_id;
	u8 bit_width;
	u8 bit_offset;
	u8 reserved;
	u64 address;
} __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;
} __packed;

struct acpi_ptc_register {
	u8 descriptor;
	u16 length;
	u8 space_id;
	u8 bit_width;
	u8 bit_offset;
	u8 reserved;
	u64 address;
} __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;
	phys_cpuid_t phys_id;	/* CPU hardware ID such as APIC ID for x86 */
	u32 id;		/* CPU logical ID allocated by OS */
	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 device *dev; /* Processor device. */
};

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(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);

/* parsing the _P* objects. */
extern int acpi_processor_get_performance_info(struct acpi_processor *pr);

/* 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 */
phys_cpuid_t acpi_get_phys_id(acpi_handle, int type, u32 acpi_id);
int acpi_map_cpuid(phys_cpuid_t phys_id, u32 acpi_id);
int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);

/* in processor_pdc.c */
void acpi_processor_set_pdc(acpi_handle handle);

/* in processor_throttling.c */
#ifdef CONFIG_ACPI_CPU_FREQ_PSS
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);
#else
static inline int acpi_processor_tstate_has_changed(struct acpi_processor *pr)
{
	return 0;
}

static inline int acpi_processor_get_throttling_info(struct acpi_processor *pr)
{
	return -ENODEV;
}

static inline int acpi_processor_set_throttling(struct acpi_processor *pr,
					 int state, bool force)
{
	return -ENODEV;
}

static inline void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,
			unsigned long action) {}

static inline void acpi_processor_throttling_init(void) {}
#endif	/* CONFIG_ACPI_CPU_FREQ_PSS */

/* in processor_idle.c */
extern struct cpuidle_driver acpi_idle_driver;
#ifdef CONFIG_ACPI_PROCESSOR_IDLE
int acpi_processor_power_init(struct acpi_processor *pr);
int acpi_processor_power_exit(struct acpi_processor *pr);
int acpi_processor_cst_has_changed(struct acpi_processor *pr);
int acpi_processor_hotplug(struct acpi_processor *pr);
#else
static inline int acpi_processor_power_init(struct acpi_processor *pr)
{
	return -ENODEV;
}

static inline int acpi_processor_power_exit(struct acpi_processor *pr)
{
	return -ENODEV;
}

static inline int acpi_processor_cst_has_changed(struct acpi_processor *pr)
{
	return -ENODEV;
}

static inline int acpi_processor_hotplug(struct acpi_processor *pr)
{
	return -ENODEV;
}
#endif /* CONFIG_ACPI_PROCESSOR_IDLE */

#if defined(CONFIG_PM_SLEEP) & defined(CONFIG_ACPI_PROCESSOR_IDLE)
void acpi_processor_syscore_init(void);
void acpi_processor_syscore_exit(void);
#else
static inline void acpi_processor_syscore_init(void) {}
static inline void acpi_processor_syscore_exit(void) {}
#endif

/* in processor_thermal.c */
int acpi_processor_get_limit_info(struct acpi_processor *pr);
extern const struct thermal_cooling_device_ops processor_cooling_ops;
#if defined(CONFIG_ACPI_CPU_FREQ_PSS) & defined(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	/* CONFIG_ACPI_CPU_FREQ_PSS */

#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>
d9460fd2	6	#include <linux/thermal.h>
02df8b93 VP	7	#include <asm/acpi.h>
02df8b93 VP	8
ac212b69 RW	9	#define ACPI_PROCESSOR_CLASS "processor"
	10	#define ACPI_PROCESSOR_DEVICE_NAME "Processor"
	11	#define ACPI_PROCESSOR_DEVICE_HID "ACPI0007"
	12
1da177e4 LT	13	#define ACPI_PROCESSOR_BUSY_METRIC 10
	14
	15	#define ACPI_PROCESSOR_MAX_POWER 8
	16	#define ACPI_PROCESSOR_MAX_C2_LATENCY 100
	17	#define ACPI_PROCESSOR_MAX_C3_LATENCY 1000
	18
	19	#define ACPI_PROCESSOR_MAX_THROTTLING 16
	20	#define ACPI_PROCESSOR_MAX_THROTTLE 250 /* 25% */
	21	#define ACPI_PROCESSOR_MAX_DUTY_WIDTH 4
	22
02df8b93 VP	23	#define ACPI_PDC_REVISION_ID 0x1
02df8b93 VP	24
fd350943	25	#define ACPI_PSD_REV0_REVISION 0 /* Support for _PSD as in ACPI 3.0 */
3b2d9942 VP	26	#define ACPI_PSD_REV0_ENTRIES 5
3b2d9942 VP	27
01854e69 LY	28	#define ACPI_TSD_REV0_REVISION 0 /* Support for _PSD as in ACPI 3.0 */
01854e69 LY	29	#define ACPI_TSD_REV0_ENTRIES 5
3b2d9942 VP	30	/*
	31	* Types of coordination defined in ACPI 3.0. Same macros can be used across
	32	* P, C and T states
	33	*/
	34	#define DOMAIN_COORD_TYPE_SW_ALL 0xfc
	35	#define DOMAIN_COORD_TYPE_SW_ANY 0xfd
	36	#define DOMAIN_COORD_TYPE_HW_ALL 0xfe
	37
4fcb2fcd VP	38	#define ACPI_CSTATE_SYSTEMIO 0
	39	#define ACPI_CSTATE_FFH 1
	40	#define ACPI_CSTATE_HALT 2
	41
	42	#define ACPI_CX_DESC_LEN 32
991528d7	43
1da177e4 LT	44	/* Power Management */
	45
	46	struct acpi_processor_cx;
	47
	48	struct acpi_power_register {
4be44fcd LB	49	u8 descriptor;
	50	u16 length;
	51	u8 space_id;
	52	u8 bit_width;
	53	u8 bit_offset;
718be4aa	54	u8 access_size;
4be44fcd	55	u64 address;
92c4d2ad	56	} __packed;
1da177e4	57
1da177e4	58	struct acpi_processor_cx {
4be44fcd LB	59	u8 valid;
	60	u8 type;
	61	u32 address;
bc71bec9	62	u8 entry_method;
991528d7	63	u8 index;
4be44fcd	64	u32 latency;
718be4aa	65	u8 bm_sts_skip;
4fcb2fcd	66	char desc[ACPI_CX_DESC_LEN];
1da177e4 LT	67	};
	68
	69	struct acpi_processor_power {
4be44fcd	70	int count;
1da177e4	71	struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
169a0abb	72	int timer_broadcast_on_state;
1da177e4 LT	73	};
	74
	75	/* Performance Management */
	76
3b2d9942	77	struct acpi_psd_package {
439913ff LM	78	u64 num_entries;
	79	u64 revision;
	80	u64 domain;
	81	u64 coord_type;
	82	u64 num_processors;
92c4d2ad	83	} __packed;
3b2d9942	84
1da177e4	85	struct acpi_pct_register {
4be44fcd LB	86	u8 descriptor;
	87	u16 length;
	88	u8 space_id;
	89	u8 bit_width;
	90	u8 bit_offset;
	91	u8 reserved;
	92	u64 address;
92c4d2ad	93	} __packed;
1da177e4 LT	94
1da177e4 LT	95	struct acpi_processor_px {
439913ff LM	96	u64 core_frequency; /* megahertz */
	97	u64 power; /* milliWatts */
	98	u64 transition_latency; /* microseconds */
	99	u64 bus_master_latency; /* microseconds */
	100	u64 control; /* control value */
	101	u64 status; /* success indicator */
1da177e4 LT	102	};
1da177e4 LT	103
1da177e4	104	struct acpi_processor_performance {
4be44fcd LB	105	unsigned int state;
4be44fcd LB	106	unsigned int platform_limit;
1da177e4 LT	107	struct acpi_pct_register control_register;
1da177e4 LT	108	struct acpi_pct_register status_register;
4be44fcd	109	unsigned int state_count;
1da177e4	110	struct acpi_processor_px *states;
3b2d9942	111	struct acpi_psd_package domain_info;
2fdf66b4	112	cpumask_var_t shared_cpu_map;
3b2d9942	113	unsigned int shared_type;
1da177e4 LT	114	};
1da177e4 LT	115
1da177e4 LT	116	/* Throttling Control */
1da177e4 LT	117
01854e69	118	struct acpi_tsd_package {
439913ff LM	119	u64 num_entries;
	120	u64 revision;
	121	u64 domain;
	122	u64 coord_type;
	123	u64 num_processors;
92c4d2ad	124	} __packed;
01854e69 LY	125
	126	struct acpi_ptc_register {
	127	u8 descriptor;
	128	u16 length;
	129	u8 space_id;
	130	u8 bit_width;
	131	u8 bit_offset;
	132	u8 reserved;
	133	u64 address;
92c4d2ad	134	} __packed;
01854e69 LY	135
01854e69 LY	136	struct acpi_processor_tx_tss {
439913ff LM	137	u64 freqpercentage; /* */
	138	u64 power; /* milliWatts */
	139	u64 transition_latency; /* microseconds */
	140	u64 control; /* control value */
	141	u64 status; /* success indicator */
01854e69	142	};
1da177e4	143	struct acpi_processor_tx {
4be44fcd LB	144	u16 power;
4be44fcd LB	145	u16 performance;
1da177e4 LT	146	};
1da177e4 LT	147
01854e69	148	struct acpi_processor;
1da177e4	149	struct acpi_processor_throttling {
01854e69 LY	150	unsigned int state;
	151	unsigned int platform_limit;
	152	struct acpi_pct_register control_register;
	153	struct acpi_pct_register status_register;
	154	unsigned int state_count;
	155	struct acpi_processor_tx_tss *states_tss;
	156	struct acpi_tsd_package domain_info;
2fdf66b4	157	cpumask_var_t shared_cpu_map;
ff55a9ce LB	158	int (acpi_processor_get_throttling) (struct acpi_processor pr);
ff55a9ce LB	159	int (acpi_processor_set_throttling) (struct acpi_processor pr,
2a908002	160	int state, bool force);
01854e69	161
4be44fcd LB	162	u32 address;
	163	u8 duty_offset;
	164	u8 duty_width;
1180509f ZY	165	u8 tsd_valid_flag;
1180509f ZY	166	unsigned int shared_type;
1da177e4 LT	167	struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
	168	};
	169
	170	/* Limit Interface */
	171
	172	struct acpi_processor_lx {
aee07ba6	173	int px; /* performance state */
4be44fcd	174	int tx; /* throttle level */
1da177e4 LT	175	};
	176
	177	struct acpi_processor_limit {
4be44fcd	178	struct acpi_processor_lx state; /* current limit */
1da177e4	179	struct acpi_processor_lx thermal; /* thermal limit */
4be44fcd	180	struct acpi_processor_lx user; /* user limit */
1da177e4 LT	181	};
1da177e4 LT	182
1da177e4	183	struct acpi_processor_flags {
4be44fcd LB	184	u8 power:1;
	185	u8 performance:1;
	186	u8 throttling:1;
	187	u8 limit:1;
	188	u8 bm_control:1;
	189	u8 bm_check:1;
	190	u8 has_cst:1;
	191	u8 power_setup_done:1;
4f86d3a8	192	u8 bm_rld_set:1;
99b72508	193	u8 need_hotplug_init:1;
1da177e4 LT	194	};
	195
	196	struct acpi_processor {
4be44fcd LB	197	acpi_handle handle;
4be44fcd LB	198	u32 acpi_id;
828aef37	199	phys_cpuid_t phys_id; /* CPU hardware ID such as APIC ID for x86 */
af8f3f51	200	u32 id; /* CPU logical ID allocated by OS */
4be44fcd LB	201	u32 pblk;
4be44fcd LB	202	int performance_platform_limit;
01854e69	203	int throttling_platform_limit;
ff55a9ce	204	/* 0 - states 0..n-th state available */
01854e69	205
1da177e4 LT	206	struct acpi_processor_flags flags;
	207	struct acpi_processor_power power;
	208	struct acpi_processor_performance *performance;
	209	struct acpi_processor_throttling throttling;
	210	struct acpi_processor_limit limit;
d9460fd2	211	struct thermal_cooling_device *cdev;
ac212b69	212	struct device dev; / Processor device. */
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
fd350943 LB	225	extern int acpi_processor_preregister_performance(struct
fd350943 LB	226	acpi_processor_performance
a29d8b8e	227	__percpu *performance);
3b2d9942	228
4be44fcd LB	229	extern int acpi_processor_register_performance(struct acpi_processor_performance
4be44fcd LB	230	*performance, unsigned int cpu);
b2f8dc4c	231	extern void acpi_processor_unregister_performance(unsigned int cpu);
1da177e4 LT	232
	233	/* note: this locks both the calling module and the processor module
	234	if a _PPC object exists, rmmod is disallowed then */
	235	int acpi_processor_notify_smm(struct module *calling_module);
	236
c705c78c KRW	237	/* parsing the _P* objects. */
	238	extern int acpi_processor_get_performance_info(struct acpi_processor *pr);
	239
1da177e4	240	/* for communication between multiple parts of the processor kernel module */
706546d0	241	DECLARE_PER_CPU(struct acpi_processor *, processors);
1da177e4 LT	242	extern struct acpi_processor_errata errata;
1da177e4 LT	243
05131ecc	244	#ifdef ARCH_HAS_POWER_INIT
02df8b93	245	void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
4be44fcd	246	unsigned int cpu);
991528d7	247	int acpi_processor_ffh_cstate_probe(unsigned int cpu,
fd350943 LB	248	struct acpi_processor_cx *cx,
fd350943 LB	249	struct acpi_power_register *reg);
991528d7	250	void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cstate);
02df8b93	251	#else
4be44fcd LB	252	static inline void acpi_processor_power_init_bm_check(struct
	253	acpi_processor_flags
	254	*flags, unsigned int cpu)
02df8b93 VP	255	{
	256	flags->bm_check = 1;
	257	return;
	258	}
991528d7	259	static inline int acpi_processor_ffh_cstate_probe(unsigned int cpu,
fd350943 LB	260	struct acpi_processor_cx *cx,
	261	struct acpi_power_register
	262	*reg)
991528d7 VP	263	{
	264	return -1;
	265	}
fd350943 LB	266	static inline void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx
fd350943 LB	267	*cstate)
991528d7 VP	268	{
	269	return;
	270	}
02df8b93 VP	271	#endif
02df8b93 VP	272
1da177e4	273	/* in processor_perflib.c */
02df8b93	274
1da177e4 LT	275	#ifdef CONFIG_CPU_FREQ
	276	void acpi_processor_ppc_init(void);
	277	void acpi_processor_ppc_exit(void);
d81c45e1	278	int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag);
e2f74f35	279	extern int acpi_processor_get_bios_limit(int cpu, unsigned int *limit);
1da177e4	280	#else
4be44fcd LB	281	static inline void acpi_processor_ppc_init(void)
	282	{
	283	return;
	284	}
	285	static inline void acpi_processor_ppc_exit(void)
	286	{
	287	return;
	288	}
d81c45e1 ZY	289	static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr,
d81c45e1 ZY	290	int event_flag)
4be44fcd	291	{
1da177e4 LT	292	static unsigned int printout = 1;
1da177e4 LT	293	if (printout) {
4be44fcd LB	294	printk(KERN_WARNING
	295	"Warning: Processor Platform Limit event detected, but not handled.\n");
	296	printk(KERN_WARNING
	297	"Consider compiling CPUfreq support into your kernel.\n");
1da177e4 LT	298	printout = 0;
	299	}
	300	return 0;
	301	}
e2f74f35 TR	302	static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
	303	{
	304	return -ENODEV;
	305	}
	306
4be44fcd	307	#endif /* CONFIG_CPU_FREQ */
1da177e4	308
4d5d4cd8	309	/* in processor_core.c */
828aef37 CM	310	phys_cpuid_t acpi_get_phys_id(acpi_handle, int type, u32 acpi_id);
828aef37 CM	311	int acpi_map_cpuid(phys_cpuid_t phys_id, u32 acpi_id);
2e9d5e4e	312	int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
78f16996	313
24119a88 HG	314	/* in processor_pdc.c */
	315	void acpi_processor_set_pdc(acpi_handle handle);
	316
1da177e4	317	/* in processor_throttling.c */
239708a3	318	#ifdef CONFIG_ACPI_CPU_FREQ_PSS
a66b34b2	319	int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
4be44fcd	320	int acpi_processor_get_throttling_info(struct acpi_processor *pr);
2a908002 FP	321	extern int acpi_processor_set_throttling(struct acpi_processor *pr,
2a908002 FP	322	int state, bool force);
5a344a50 ZY	323	/*
	324	* Reevaluate whether the T-state is invalid after one cpu is
	325	* onlined/offlined. In such case the flags.throttling will be updated.
	326	*/
	327	extern void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,
	328	unsigned long action);
070d8eb1	329	extern const struct file_operations acpi_processor_throttling_fops;
1180509f	330	extern void acpi_processor_throttling_init(void);
239708a3 AC	331	#else
	332	static inline int acpi_processor_tstate_has_changed(struct acpi_processor *pr)
	333	{
	334	return 0;
	335	}
	336
	337	static inline int acpi_processor_get_throttling_info(struct acpi_processor *pr)
	338	{
	339	return -ENODEV;
	340	}
	341
	342	static inline int acpi_processor_set_throttling(struct acpi_processor *pr,
	343	int state, bool force)
	344	{
	345	return -ENODEV;
	346	}
	347
	348	static inline void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,
	349	unsigned long action) {}
	350
	351	static inline void acpi_processor_throttling_init(void) {}
	352	#endif /* CONFIG_ACPI_CPU_FREQ_PSS */
	353
1da177e4	354	/* in processor_idle.c */
5f05586c AC	355	extern struct cpuidle_driver acpi_idle_driver;
5f05586c AC	356	#ifdef CONFIG_ACPI_PROCESSOR_IDLE
38a991b6 DL	357	int acpi_processor_power_init(struct acpi_processor *pr);
38a991b6 DL	358	int acpi_processor_power_exit(struct acpi_processor *pr);
4be44fcd	359	int acpi_processor_cst_has_changed(struct acpi_processor *pr);
46bcfad7	360	int acpi_processor_hotplug(struct acpi_processor *pr);
5f05586c AC	361	#else
	362	static inline int acpi_processor_power_init(struct acpi_processor *pr)
	363	{
	364	return -ENODEV;
	365	}
	366
	367	static inline int acpi_processor_power_exit(struct acpi_processor *pr)
	368	{
	369	return -ENODEV;
	370	}
	371
	372	static inline int acpi_processor_cst_has_changed(struct acpi_processor *pr)
	373	{
	374	return -ENODEV;
	375	}
	376
	377	static inline int acpi_processor_hotplug(struct acpi_processor *pr)
	378	{
	379	return -ENODEV;
	380	}
	381	#endif /* CONFIG_ACPI_PROCESSOR_IDLE */
1da177e4	382
5f05586c	383	#if defined(CONFIG_PM_SLEEP) & defined(CONFIG_ACPI_PROCESSOR_IDLE)
0a3b15ac RW	384	void acpi_processor_syscore_init(void);
	385	void acpi_processor_syscore_exit(void);
	386	#else
	387	static inline void acpi_processor_syscore_init(void) {}
	388	static inline void acpi_processor_syscore_exit(void) {}
	389	#endif
	390
1da177e4	391	/* in processor_thermal.c */
4be44fcd	392	int acpi_processor_get_limit_info(struct acpi_processor *pr);
9c8b04be	393	extern const struct thermal_cooling_device_ops processor_cooling_ops;
239708a3	394	#if defined(CONFIG_ACPI_CPU_FREQ_PSS) & defined(CONFIG_CPU_FREQ)
1da177e4 LT	395	void acpi_thermal_cpufreq_init(void);
	396	void acpi_thermal_cpufreq_exit(void);
	397	#else
4be44fcd LB	398	static inline void acpi_thermal_cpufreq_init(void)
	399	{
	400	return;
	401	}
	402	static inline void acpi_thermal_cpufreq_exit(void)
	403	{
	404	return;
	405	}
239708a3	406	#endif /* CONFIG_ACPI_CPU_FREQ_PSS */
1da177e4	407
1da177e4	408	#endif