[mirror_ubuntu-zesty-kernel.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_CONTAINER_HID	"ACPI0010"

#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);

#ifdef CONFIG_ACPI_CPPC_LIB
extern int acpi_cppc_processor_probe(struct acpi_processor *pr);
extern void acpi_cppc_processor_exit(struct acpi_processor *pr);
#else
static inline int acpi_cppc_processor_probe(struct acpi_processor *pr)
{
	return 0;
}
static inline void acpi_cppc_processor_exit(struct acpi_processor *pr)
{
	return;
}
#endif	/* CONFIG_ACPI_CPPC_LIB */

/* 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"
db62fda3	12	#define ACPI_PROCESSOR_CONTAINER_HID "ACPI0010"
ac212b69	13
1da177e4 LT	14	#define ACPI_PROCESSOR_BUSY_METRIC 10
	15
	16	#define ACPI_PROCESSOR_MAX_POWER 8
	17	#define ACPI_PROCESSOR_MAX_C2_LATENCY 100
	18	#define ACPI_PROCESSOR_MAX_C3_LATENCY 1000
	19
	20	#define ACPI_PROCESSOR_MAX_THROTTLING 16
	21	#define ACPI_PROCESSOR_MAX_THROTTLE 250 /* 25% */
	22	#define ACPI_PROCESSOR_MAX_DUTY_WIDTH 4
	23
02df8b93 VP	24	#define ACPI_PDC_REVISION_ID 0x1
02df8b93 VP	25
fd350943	26	#define ACPI_PSD_REV0_REVISION 0 /* Support for _PSD as in ACPI 3.0 */
3b2d9942 VP	27	#define ACPI_PSD_REV0_ENTRIES 5
3b2d9942 VP	28
01854e69 LY	29	#define ACPI_TSD_REV0_REVISION 0 /* Support for _PSD as in ACPI 3.0 */
01854e69 LY	30	#define ACPI_TSD_REV0_ENTRIES 5
3b2d9942 VP	31	/*
	32	* Types of coordination defined in ACPI 3.0. Same macros can be used across
	33	* P, C and T states
	34	*/
	35	#define DOMAIN_COORD_TYPE_SW_ALL 0xfc
	36	#define DOMAIN_COORD_TYPE_SW_ANY 0xfd
	37	#define DOMAIN_COORD_TYPE_HW_ALL 0xfe
	38
4fcb2fcd VP	39	#define ACPI_CSTATE_SYSTEMIO 0
	40	#define ACPI_CSTATE_FFH 1
	41	#define ACPI_CSTATE_HALT 2
	42
	43	#define ACPI_CX_DESC_LEN 32
991528d7	44
1da177e4 LT	45	/* Power Management */
	46
	47	struct acpi_processor_cx;
	48
	49	struct acpi_power_register {
4be44fcd LB	50	u8 descriptor;
	51	u16 length;
	52	u8 space_id;
	53	u8 bit_width;
	54	u8 bit_offset;
718be4aa	55	u8 access_size;
4be44fcd	56	u64 address;
92c4d2ad	57	} __packed;
1da177e4	58
1da177e4	59	struct acpi_processor_cx {
4be44fcd LB	60	u8 valid;
	61	u8 type;
	62	u32 address;
bc71bec9	63	u8 entry_method;
991528d7	64	u8 index;
4be44fcd	65	u32 latency;
718be4aa	66	u8 bm_sts_skip;
4fcb2fcd	67	char desc[ACPI_CX_DESC_LEN];
1da177e4 LT	68	};
	69
	70	struct acpi_processor_power {
4be44fcd	71	int count;
1da177e4	72	struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
169a0abb	73	int timer_broadcast_on_state;
1da177e4 LT	74	};
	75
	76	/* Performance Management */
	77
3b2d9942	78	struct acpi_psd_package {
439913ff LM	79	u64 num_entries;
	80	u64 revision;
	81	u64 domain;
	82	u64 coord_type;
	83	u64 num_processors;
92c4d2ad	84	} __packed;
3b2d9942	85
1da177e4	86	struct acpi_pct_register {
4be44fcd LB	87	u8 descriptor;
	88	u16 length;
	89	u8 space_id;
	90	u8 bit_width;
	91	u8 bit_offset;
	92	u8 reserved;
	93	u64 address;
92c4d2ad	94	} __packed;
1da177e4 LT	95
1da177e4 LT	96	struct acpi_processor_px {
439913ff LM	97	u64 core_frequency; /* megahertz */
	98	u64 power; /* milliWatts */
	99	u64 transition_latency; /* microseconds */
	100	u64 bus_master_latency; /* microseconds */
	101	u64 control; /* control value */
	102	u64 status; /* success indicator */
1da177e4 LT	103	};
1da177e4 LT	104
1da177e4	105	struct acpi_processor_performance {
4be44fcd LB	106	unsigned int state;
4be44fcd LB	107	unsigned int platform_limit;
1da177e4 LT	108	struct acpi_pct_register control_register;
1da177e4 LT	109	struct acpi_pct_register status_register;
4be44fcd	110	unsigned int state_count;
1da177e4	111	struct acpi_processor_px *states;
3b2d9942	112	struct acpi_psd_package domain_info;
2fdf66b4	113	cpumask_var_t shared_cpu_map;
3b2d9942	114	unsigned int shared_type;
1da177e4 LT	115	};
1da177e4 LT	116
1da177e4 LT	117	/* Throttling Control */
1da177e4 LT	118
01854e69	119	struct acpi_tsd_package {
439913ff LM	120	u64 num_entries;
	121	u64 revision;
	122	u64 domain;
	123	u64 coord_type;
	124	u64 num_processors;
92c4d2ad	125	} __packed;
01854e69 LY	126
	127	struct acpi_ptc_register {
	128	u8 descriptor;
	129	u16 length;
	130	u8 space_id;
	131	u8 bit_width;
	132	u8 bit_offset;
	133	u8 reserved;
	134	u64 address;
92c4d2ad	135	} __packed;
01854e69 LY	136
01854e69 LY	137	struct acpi_processor_tx_tss {
439913ff LM	138	u64 freqpercentage; /* */
	139	u64 power; /* milliWatts */
	140	u64 transition_latency; /* microseconds */
	141	u64 control; /* control value */
	142	u64 status; /* success indicator */
01854e69	143	};
1da177e4	144	struct acpi_processor_tx {
4be44fcd LB	145	u16 power;
4be44fcd LB	146	u16 performance;
1da177e4 LT	147	};
1da177e4 LT	148
01854e69	149	struct acpi_processor;
1da177e4	150	struct acpi_processor_throttling {
01854e69 LY	151	unsigned int state;
	152	unsigned int platform_limit;
	153	struct acpi_pct_register control_register;
	154	struct acpi_pct_register status_register;
	155	unsigned int state_count;
	156	struct acpi_processor_tx_tss *states_tss;
	157	struct acpi_tsd_package domain_info;
2fdf66b4	158	cpumask_var_t shared_cpu_map;
ff55a9ce LB	159	int (acpi_processor_get_throttling) (struct acpi_processor pr);
ff55a9ce LB	160	int (acpi_processor_set_throttling) (struct acpi_processor pr,
2a908002	161	int state, bool force);
01854e69	162
4be44fcd LB	163	u32 address;
	164	u8 duty_offset;
	165	u8 duty_width;
1180509f ZY	166	u8 tsd_valid_flag;
1180509f ZY	167	unsigned int shared_type;
1da177e4 LT	168	struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
	169	};
	170
	171	/* Limit Interface */
	172
	173	struct acpi_processor_lx {
aee07ba6	174	int px; /* performance state */
4be44fcd	175	int tx; /* throttle level */
1da177e4 LT	176	};
	177
	178	struct acpi_processor_limit {
4be44fcd	179	struct acpi_processor_lx state; /* current limit */
1da177e4	180	struct acpi_processor_lx thermal; /* thermal limit */
4be44fcd	181	struct acpi_processor_lx user; /* user limit */
1da177e4 LT	182	};
1da177e4 LT	183
1da177e4	184	struct acpi_processor_flags {
4be44fcd LB	185	u8 power:1;
	186	u8 performance:1;
	187	u8 throttling:1;
	188	u8 limit:1;
	189	u8 bm_control:1;
	190	u8 bm_check:1;
	191	u8 has_cst:1;
	192	u8 power_setup_done:1;
4f86d3a8	193	u8 bm_rld_set:1;
99b72508	194	u8 need_hotplug_init:1;
1da177e4 LT	195	};
	196
	197	struct acpi_processor {
4be44fcd LB	198	acpi_handle handle;
4be44fcd LB	199	u32 acpi_id;
828aef37	200	phys_cpuid_t phys_id; /* CPU hardware ID such as APIC ID for x86 */
af8f3f51	201	u32 id; /* CPU logical ID allocated by OS */
4be44fcd LB	202	u32 pblk;
4be44fcd LB	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;
ac212b69	213	struct device dev; / Processor device. */
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
4be44fcd LB	231	*performance, unsigned int cpu);
b2f8dc4c	232	extern void acpi_processor_unregister_performance(unsigned int cpu);
1da177e4 LT	233
	234	/* note: this locks both the calling module and the processor module
	235	if a _PPC object exists, rmmod is disallowed then */
	236	int acpi_processor_notify_smm(struct module *calling_module);
	237
c705c78c KRW	238	/* parsing the _P* objects. */
	239	extern int acpi_processor_get_performance_info(struct acpi_processor *pr);
	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 */
828aef37 CM	311	phys_cpuid_t acpi_get_phys_id(acpi_handle, int type, u32 acpi_id);
828aef37 CM	312	int acpi_map_cpuid(phys_cpuid_t phys_id, u32 acpi_id);
2e9d5e4e	313	int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
78f16996	314
4f2f7573 AC	315	#ifdef CONFIG_ACPI_CPPC_LIB
	316	extern int acpi_cppc_processor_probe(struct acpi_processor *pr);
	317	extern void acpi_cppc_processor_exit(struct acpi_processor *pr);
	318	#else
	319	static inline int acpi_cppc_processor_probe(struct acpi_processor *pr)
	320	{
	321	return 0;
	322	}
	323	static inline void acpi_cppc_processor_exit(struct acpi_processor *pr)
	324	{
	325	return;
	326	}
	327	#endif /* CONFIG_ACPI_CPPC_LIB */
	328
24119a88 HG	329	/* in processor_pdc.c */
	330	void acpi_processor_set_pdc(acpi_handle handle);
	331
1da177e4	332	/* in processor_throttling.c */
239708a3	333	#ifdef CONFIG_ACPI_CPU_FREQ_PSS
a66b34b2	334	int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
4be44fcd	335	int acpi_processor_get_throttling_info(struct acpi_processor *pr);
2a908002 FP	336	extern int acpi_processor_set_throttling(struct acpi_processor *pr,
2a908002 FP	337	int state, bool force);
5a344a50 ZY	338	/*
	339	* Reevaluate whether the T-state is invalid after one cpu is
	340	* onlined/offlined. In such case the flags.throttling will be updated.
	341	*/
	342	extern void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,
	343	unsigned long action);
070d8eb1	344	extern const struct file_operations acpi_processor_throttling_fops;
1180509f	345	extern void acpi_processor_throttling_init(void);
239708a3 AC	346	#else
	347	static inline int acpi_processor_tstate_has_changed(struct acpi_processor *pr)
	348	{
	349	return 0;
	350	}
	351
	352	static inline int acpi_processor_get_throttling_info(struct acpi_processor *pr)
	353	{
	354	return -ENODEV;
	355	}
	356
	357	static inline int acpi_processor_set_throttling(struct acpi_processor *pr,
	358	int state, bool force)
	359	{
	360	return -ENODEV;
	361	}
	362
	363	static inline void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,
	364	unsigned long action) {}
	365
	366	static inline void acpi_processor_throttling_init(void) {}
	367	#endif /* CONFIG_ACPI_CPU_FREQ_PSS */
	368
1da177e4	369	/* in processor_idle.c */
5f05586c AC	370	extern struct cpuidle_driver acpi_idle_driver;
5f05586c AC	371	#ifdef CONFIG_ACPI_PROCESSOR_IDLE
38a991b6 DL	372	int acpi_processor_power_init(struct acpi_processor *pr);
38a991b6 DL	373	int acpi_processor_power_exit(struct acpi_processor *pr);
4be44fcd	374	int acpi_processor_cst_has_changed(struct acpi_processor *pr);
46bcfad7	375	int acpi_processor_hotplug(struct acpi_processor *pr);
5f05586c AC	376	#else
	377	static inline int acpi_processor_power_init(struct acpi_processor *pr)
	378	{
	379	return -ENODEV;
	380	}
	381
	382	static inline int acpi_processor_power_exit(struct acpi_processor *pr)
	383	{
	384	return -ENODEV;
	385	}
	386
	387	static inline int acpi_processor_cst_has_changed(struct acpi_processor *pr)
	388	{
	389	return -ENODEV;
	390	}
	391
	392	static inline int acpi_processor_hotplug(struct acpi_processor *pr)
	393	{
	394	return -ENODEV;
	395	}
	396	#endif /* CONFIG_ACPI_PROCESSOR_IDLE */
1da177e4	397
5f05586c	398	#if defined(CONFIG_PM_SLEEP) & defined(CONFIG_ACPI_PROCESSOR_IDLE)
0a3b15ac RW	399	void acpi_processor_syscore_init(void);
	400	void acpi_processor_syscore_exit(void);
	401	#else
	402	static inline void acpi_processor_syscore_init(void) {}
	403	static inline void acpi_processor_syscore_exit(void) {}
	404	#endif
	405
1da177e4	406	/* in processor_thermal.c */
4be44fcd	407	int acpi_processor_get_limit_info(struct acpi_processor *pr);
9c8b04be	408	extern const struct thermal_cooling_device_ops processor_cooling_ops;
239708a3	409	#if defined(CONFIG_ACPI_CPU_FREQ_PSS) & defined(CONFIG_CPU_FREQ)
1da177e4 LT	410	void acpi_thermal_cpufreq_init(void);
	411	void acpi_thermal_cpufreq_exit(void);
	412	#else
4be44fcd LB	413	static inline void acpi_thermal_cpufreq_init(void)
	414	{
	415	return;
	416	}
	417	static inline void acpi_thermal_cpufreq_exit(void)
	418	{
	419	return;
	420	}
239708a3	421	#endif /* CONFIG_ACPI_CPU_FREQ_PSS */
1da177e4	422
1da177e4	423	#endif