#include <linux/kernel.h>
#include <linux/config.h>
+#include <asm/acpi.h>
+
#define ACPI_PROCESSOR_BUSY_METRIC 10
#define ACPI_PROCESSOR_MAX_POWER 8
#define ACPI_PROCESSOR_MAX_THROTTLE 250 /* 25% */
#define ACPI_PROCESSOR_MAX_DUTY_WIDTH 4
+#define ACPI_PDC_REVISION_ID 0x1
+
/* 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;
+ 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;
+ u32 count;
struct acpi_processor_cx *state;
struct {
- u32 time;
- u32 ticks;
- u32 count;
- u32 bm;
- } threshold;
+ u32 time;
+ u32 ticks;
+ u32 count;
+ u32 bm;
+ } threshold;
};
struct acpi_processor_cx {
- u8 valid;
- u8 type;
- u32 address;
- u32 latency;
- u32 latency_ticks;
- u32 power;
- u32 usage;
+ u8 valid;
+ u8 type;
+ u32 address;
+ u32 latency;
+ u32 latency_ticks;
+ u32 power;
+ u32 usage;
struct acpi_processor_cx_policy promotion;
struct acpi_processor_cx_policy demotion;
};
struct acpi_processor_power {
struct acpi_processor_cx *state;
- unsigned long bm_check_timestamp;
- u32 default_state;
- u32 bm_activity;
- int count;
+ unsigned long bm_check_timestamp;
+ u32 default_state;
+ u32 bm_activity;
+ int count;
struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
};
/* Performance Management */
struct acpi_pct_register {
- u8 descriptor;
- u16 length;
- u8 space_id;
- u8 bit_width;
- u8 bit_offset;
- u8 reserved;
- u64 address;
+ 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 */
+ 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 */
};
-#define ACPI_PDC_REVISION_ID 0x1
-
struct acpi_processor_performance {
- unsigned int state;
- unsigned int platform_limit;
+ unsigned int state;
+ unsigned int platform_limit;
struct acpi_pct_register control_register;
struct acpi_pct_register status_register;
- unsigned int state_count;
+ unsigned int state_count;
struct acpi_processor_px *states;
- /* the _PDC objects passed by the driver, if any */
- struct acpi_object_list *pdc;
};
-
-
/* Throttling Control */
struct acpi_processor_tx {
- u16 power;
- u16 performance;
+ u16 power;
+ u16 performance;
};
struct acpi_processor_throttling {
- int state;
- u32 address;
- u8 duty_offset;
- u8 duty_width;
- int state_count;
+ int state;
+ u32 address;
+ u8 duty_offset;
+ u8 duty_width;
+ int state_count;
struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
};
/* Limit Interface */
struct acpi_processor_lx {
- int px; /* performace state */
- int tx; /* throttle level */
+ int px; /* performace state */
+ int tx; /* throttle level */
};
struct acpi_processor_limit {
- struct acpi_processor_lx state; /* current 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_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 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;
};
struct acpi_processor {
- acpi_handle handle;
- u32 acpi_id;
- u32 id;
- u32 pblk;
- int performance_platform_limit;
+ acpi_handle handle;
+ u32 acpi_id;
+ u32 id;
+ u32 pblk;
+ int performance_platform_limit;
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;
+
+ /* the _PDC objects for this processor, if any */
+ struct acpi_object_list *pdc;
};
struct acpi_processor_errata {
- u8 smp;
+ u8 smp;
struct {
- u8 throttle:1;
- u8 fdma:1;
- u8 reserved:6;
- u32 bmisx;
- } piix4;
+ u8 throttle:1;
+ u8 fdma:1;
+ u8 reserved:6;
+ u32 bmisx;
+ } piix4;
};
-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);
+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 */
-extern struct acpi_processor *processors[NR_CPUS];
+extern struct acpi_processor *processors[NR_CPUS];
extern struct acpi_processor_errata errata;
+void arch_acpi_processor_init_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);
+#else
+static inline void acpi_processor_power_init_bm_check(struct
+ acpi_processor_flags
+ *flags, unsigned int cpu)
+{
+ flags->bm_check = 1;
+ 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);
#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) {
+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)
+{
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");
+ 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;
}
-#endif /* CONFIG_CPU_FREQ */
+#endif /* CONFIG_CPU_FREQ */
/* in processor_throttling.c */
-int acpi_processor_get_throttling_info (struct acpi_processor *pr);
-int acpi_processor_set_throttling (struct acpi_processor *pr, int state);
-ssize_t acpi_processor_write_throttling (
- struct file *file,
- const char __user *buffer,
- size_t count,
- loff_t *data);
+int acpi_processor_get_throttling_info(struct acpi_processor *pr);
+int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
extern struct file_operations acpi_processor_throttling_fops;
/* 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_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);
/* in processor_thermal.c */
-int acpi_processor_get_limit_info (struct acpi_processor *pr);
-ssize_t acpi_processor_write_limit (
- struct file *file,
- const char __user *buffer,
- size_t count,
- loff_t *data);
+int acpi_processor_get_limit_info(struct acpi_processor *pr);
extern struct file_operations acpi_processor_limit_fops;
#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; }
+static inline void acpi_thermal_cpufreq_init(void)
+{
+ return;
+}
+static inline void acpi_thermal_cpufreq_exit(void)
+{
+ return;
+}
#endif
-
#endif
git://git.onelab.eu / linux-2.6.git / blobdiff