#define __ACPI_PROCESSOR_H
#include <linux/kernel.h>
-#include <linux/config.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_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;
+ 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;
+ 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;
- u32 bm_activity;
- int count;
+ unsigned long bm_check_timestamp;
+ u32 default_state;
+ int count;
struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
-
- /* the _PDC objects passed by the driver, if any */
- struct acpi_object_list *pdc;
+ 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;
+ 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 */
};
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;
+ 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));
-/* Throttling Control */
+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;
+ u16 power;
+ u16 performance;
};
+struct acpi_processor;
struct acpi_processor_throttling {
- int state;
- u32 address;
- u8 duty_offset;
- u8 duty_width;
- int state_count;
+ 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; /* performace state */
- int tx; /* throttle level */
+ int px; /* performance 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;
+ u8 bm_rld_set: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;
+ 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;
+ 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_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 */
-extern struct acpi_processor *processors[NR_CPUS];
+DECLARE_PER_CPU(struct acpi_processor *, processors);
extern struct acpi_processor_errata errata;
-int acpi_processor_set_pdc(struct acpi_processor *pr,
- struct acpi_object_list *pdc_in);
+void arch_acpi_processor_init_pdc(struct acpi_processor *pr);
+void arch_acpi_processor_cleanup_pdc(struct acpi_processor *pr);
-#ifdef ARCH_HAS_POWER_PDC_INIT
-void acpi_processor_power_init_pdc(struct acpi_processor_power *pow,
- unsigned int cpu);
+#ifdef ARCH_HAS_POWER_INIT
void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
- unsigned int cpu);
+ 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_pdc(
- struct acpi_processor_power *pow, unsigned int cpu)
+static inline void acpi_processor_power_init_bm_check(struct
+ acpi_processor_flags
+ *flags, unsigned int cpu)
{
- pow->pdc = NULL;
+ flags->bm_check = 1;
return;
}
-
-static inline void acpi_processor_power_init_bm_check(
- struct acpi_processor_flags *flags, unsigned int cpu)
+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)
{
- flags->bm_check = 1;
return;
}
#endif
void acpi_processor_ppc_init(void);
void acpi_processor_ppc_exit(void);
int acpi_processor_ppc_has_changed(struct acpi_processor *pr);
+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) {
+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 */
+static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
+{
+ return -ENODEV;
+}
-/* 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);
-extern struct file_operations acpi_processor_throttling_fops;
+#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_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);
-ssize_t acpi_processor_write_limit (
- struct file *file,
- const char __user *buffer,
- size_t count,
- loff_t *data);
-extern struct file_operations acpi_processor_limit_fops;
-
+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; }
+static inline void acpi_thermal_cpufreq_init(void)
+{
+ return;
+}
+static inline void acpi_thermal_cpufreq_exit(void)
+{
+ return;
+}
#endif
-
#endif