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-rw-r--r--include/acpi/processor.h148
1 files changed, 80 insertions, 68 deletions
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 06480bcabfd..9b9b6f29bbf 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -3,10 +3,13 @@
#include <linux/kernel.h>
#include <linux/cpu.h>
-#include <linux/cpuidle.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
@@ -48,20 +51,9 @@ struct acpi_power_register {
u8 space_id;
u8 bit_width;
u8 bit_offset;
- u8 reserved;
+ u8 access_size;
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;
-};
+} __packed;
struct acpi_processor_cx {
u8 valid;
@@ -70,21 +62,14 @@ struct acpi_processor_cx {
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;
+ u8 bm_sts_skip;
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;
struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
int timer_broadcast_on_state;
@@ -93,12 +78,12 @@ struct acpi_processor_power {
/* 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));
+ u64 num_entries;
+ u64 revision;
+ u64 domain;
+ u64 coord_type;
+ u64 num_processors;
+} __packed;
struct acpi_pct_register {
u8 descriptor;
@@ -108,15 +93,15 @@ struct acpi_pct_register {
u8 bit_offset;
u8 reserved;
u64 address;
-} __attribute__ ((packed));
+} __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 */
+ 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 {
@@ -127,19 +112,19 @@ struct acpi_processor_performance {
unsigned int state_count;
struct acpi_processor_px *states;
struct acpi_psd_package domain_info;
- cpumask_t shared_cpu_map;
+ 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));
+ u64 num_entries;
+ u64 revision;
+ u64 domain;
+ u64 coord_type;
+ u64 num_processors;
+} __packed;
struct acpi_ptc_register {
u8 descriptor;
@@ -149,14 +134,14 @@ struct acpi_ptc_register {
u8 bit_offset;
u8 reserved;
u64 address;
-} __attribute__ ((packed));
+} __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 */
+ u64 freqpercentage; /* */
+ u64 power; /* milliWatts */
+ u64 transition_latency; /* microseconds */
+ u64 control; /* control value */
+ u64 status; /* success indicator */
};
struct acpi_processor_tx {
u16 power;
@@ -172,10 +157,10 @@ struct acpi_processor_throttling {
unsigned int state_count;
struct acpi_processor_tx_tss *states_tss;
struct acpi_tsd_package domain_info;
- cpumask_t shared_cpu_map;
+ 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);
+ int state, bool force);
u32 address;
u8 duty_offset;
@@ -208,11 +193,13 @@ struct acpi_processor_flags {
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;
+ u32 apic_id;
u32 id;
u32 pblk;
int performance_platform_limit;
@@ -225,8 +212,7 @@ struct acpi_processor {
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 device *dev; /* Processor device. */
};
struct acpi_processor_errata {
@@ -241,7 +227,7 @@ struct acpi_processor_errata {
extern int acpi_processor_preregister_performance(struct
acpi_processor_performance
- *performance);
+ __percpu *performance);
extern int acpi_processor_register_performance(struct acpi_processor_performance
*performance, unsigned int cpu);
@@ -254,12 +240,13 @@ extern void acpi_processor_unregister_performance(struct
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 */
-extern struct acpi_processor *processors[NR_CPUS];
+DECLARE_PER_CPU(struct acpi_processor *, processors);
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);
@@ -294,7 +281,8 @@ static inline void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx
#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 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)
{
@@ -304,7 +292,8 @@ static inline void acpi_processor_ppc_exit(void)
{
return;
}
-static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr)
+static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr,
+ int event_flag)
{
static unsigned int printout = 1;
if (printout) {
@@ -316,27 +305,50 @@ static inline int acpi_processor_ppc_has_changed(struct acpi_processor *pr)
}
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 */
+void acpi_processor_set_pdc(acpi_handle handle);
+int acpi_get_apicid(acpi_handle, int type, u32 acpi_id);
+int acpi_map_cpuid(int apic_id, u32 acpi_id);
+int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
+
/* 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);
-extern struct file_operations acpi_processor_throttling_fops;
+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);
/* in processor_idle.c */
-int acpi_processor_power_init(struct acpi_processor *pr,
- struct acpi_device *device);
+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_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);
+int acpi_processor_hotplug(struct acpi_processor *pr);
extern struct cpuidle_driver acpi_idle_driver;
+#ifdef CONFIG_PM_SLEEP
+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 struct file_operations acpi_processor_limit_fops;
-extern struct thermal_cooling_device_ops processor_cooling_ops;
+extern const struct thermal_cooling_device_ops processor_cooling_ops;
#ifdef CONFIG_CPU_FREQ
void acpi_thermal_cpufreq_init(void);
void acpi_thermal_cpufreq_exit(void);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 06:44:48 +0000