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-rw-r--r--src/include/linux/perf_event.h868
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diff --git a/src/include/linux/perf_event.h b/src/include/linux/perf_event.h
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--- a/src/include/linux/perf_event.h
+++ /dev/null
@@ -1,868 +0,0 @@
-/*
- * Performance events:
- *
- * Copyright (C) 2008-2009, Thomas Gleixner <tglx@linutronix.de>
- * Copyright (C) 2008-2011, Red Hat, Inc., Ingo Molnar
- * Copyright (C) 2008-2011, Red Hat, Inc., Peter Zijlstra
- *
- * Data type definitions, declarations, prototypes.
- *
- * Started by: Thomas Gleixner and Ingo Molnar
- *
- * For licencing details see kernel-base/COPYING
- */
-#ifndef _LINUX_PERF_EVENT_H
-#define _LINUX_PERF_EVENT_H
-
-#include <uapi/linux/perf_event.h>
-
-/*
- * Kernel-internal data types and definitions:
- */
-
-#ifdef CONFIG_PERF_EVENTS
-# include <asm/perf_event.h>
-# include <asm/local64.h>
-#endif
-
-struct perf_guest_info_callbacks {
- int (*is_in_guest)(void);
- int (*is_user_mode)(void);
- unsigned long (*get_guest_ip)(void);
-};
-
-#ifdef CONFIG_HAVE_HW_BREAKPOINT
-#include <asm/hw_breakpoint.h>
-#endif
-
-#include <linux/list.h>
-#include <linux/mutex.h>
-#include <linux/rculist.h>
-#include <linux/rcupdate.h>
-#include <linux/spinlock.h>
-#include <linux/hrtimer.h>
-#include <linux/fs.h>
-#include <linux/pid_namespace.h>
-#include <linux/workqueue.h>
-#include <linux/ftrace.h>
-#include <linux/cpu.h>
-#include <linux/irq_work.h>
-#include <linux/static_key.h>
-#include <linux/jump_label_ratelimit.h>
-#include <linux/atomic.h>
-#include <linux/sysfs.h>
-#include <linux/perf_regs.h>
-#include <asm/local.h>
-
-struct perf_callchain_entry {
- __u64 nr;
- __u64 ip[PERF_MAX_STACK_DEPTH];
-};
-
-struct perf_raw_record {
- u32 size;
- void *data;
-};
-
-/*
- * branch stack layout:
- * nr: number of taken branches stored in entries[]
- *
- * Note that nr can vary from sample to sample
- * branches (to, from) are stored from most recent
- * to least recent, i.e., entries[0] contains the most
- * recent branch.
- */
-struct perf_branch_stack {
- __u64 nr;
- struct perf_branch_entry entries[0];
-};
-
-struct perf_regs_user {
- __u64 abi;
- struct pt_regs *regs;
-};
-
-struct task_struct;
-
-/*
- * extra PMU register associated with an event
- */
-struct hw_perf_event_extra {
- u64 config; /* register value */
- unsigned int reg; /* register address or index */
- int alloc; /* extra register already allocated */
- int idx; /* index in shared_regs->regs[] */
-};
-
-struct event_constraint;
-
-/**
- * struct hw_perf_event - performance event hardware details:
- */
-struct hw_perf_event {
-#ifdef CONFIG_PERF_EVENTS
- union {
- struct { /* hardware */
- u64 config;
- u64 last_tag;
- unsigned long config_base;
- unsigned long event_base;
- int event_base_rdpmc;
- int idx;
- int last_cpu;
- int flags;
-
- struct hw_perf_event_extra extra_reg;
- struct hw_perf_event_extra branch_reg;
-
- struct event_constraint *constraint;
- };
- struct { /* software */
- struct hrtimer hrtimer;
- };
- struct { /* tracepoint */
- struct task_struct *tp_target;
- /* for tp_event->class */
- struct list_head tp_list;
- };
-#ifdef CONFIG_HAVE_HW_BREAKPOINT
- struct { /* breakpoint */
- /*
- * Crufty hack to avoid the chicken and egg
- * problem hw_breakpoint has with context
- * creation and event initalization.
- */
- struct task_struct *bp_target;
- struct arch_hw_breakpoint info;
- struct list_head bp_list;
- };
-#endif
- };
- int state;
- local64_t prev_count;
- u64 sample_period;
- u64 last_period;
- local64_t period_left;
- u64 interrupts_seq;
- u64 interrupts;
-
- u64 freq_time_stamp;
- u64 freq_count_stamp;
-#endif
-};
-
-/*
- * hw_perf_event::state flags
- */
-#define PERF_HES_STOPPED 0x01 /* the counter is stopped */
-#define PERF_HES_UPTODATE 0x02 /* event->count up-to-date */
-#define PERF_HES_ARCH 0x04
-
-struct perf_event;
-
-/*
- * Common implementation detail of pmu::{start,commit,cancel}_txn
- */
-#define PERF_EVENT_TXN 0x1
-
-/**
- * struct pmu - generic performance monitoring unit
- */
-struct pmu {
- struct list_head entry;
-
- struct device *dev;
- const struct attribute_group **attr_groups;
- const char *name;
- int type;
-
- int * __percpu pmu_disable_count;
- struct perf_cpu_context * __percpu pmu_cpu_context;
- int task_ctx_nr;
- int hrtimer_interval_ms;
-
- /*
- * Fully disable/enable this PMU, can be used to protect from the PMI
- * as well as for lazy/batch writing of the MSRs.
- */
- void (*pmu_enable) (struct pmu *pmu); /* optional */
- void (*pmu_disable) (struct pmu *pmu); /* optional */
-
- /*
- * Try and initialize the event for this PMU.
- * Should return -ENOENT when the @event doesn't match this PMU.
- */
- int (*event_init) (struct perf_event *event);
-
-#define PERF_EF_START 0x01 /* start the counter when adding */
-#define PERF_EF_RELOAD 0x02 /* reload the counter when starting */
-#define PERF_EF_UPDATE 0x04 /* update the counter when stopping */
-
- /*
- * Adds/Removes a counter to/from the PMU, can be done inside
- * a transaction, see the ->*_txn() methods.
- */
- int (*add) (struct perf_event *event, int flags);
- void (*del) (struct perf_event *event, int flags);
-
- /*
- * Starts/Stops a counter present on the PMU. The PMI handler
- * should stop the counter when perf_event_overflow() returns
- * !0. ->start() will be used to continue.
- */
- void (*start) (struct perf_event *event, int flags);
- void (*stop) (struct perf_event *event, int flags);
-
- /*
- * Updates the counter value of the event.
- */
- void (*read) (struct perf_event *event);
-
- /*
- * Group events scheduling is treated as a transaction, add
- * group events as a whole and perform one schedulability test.
- * If the test fails, roll back the whole group
- *
- * Start the transaction, after this ->add() doesn't need to
- * do schedulability tests.
- */
- void (*start_txn) (struct pmu *pmu); /* optional */
- /*
- * If ->start_txn() disabled the ->add() schedulability test
- * then ->commit_txn() is required to perform one. On success
- * the transaction is closed. On error the transaction is kept
- * open until ->cancel_txn() is called.
- */
- int (*commit_txn) (struct pmu *pmu); /* optional */
- /*
- * Will cancel the transaction, assumes ->del() is called
- * for each successful ->add() during the transaction.
- */
- void (*cancel_txn) (struct pmu *pmu); /* optional */
-
- /*
- * Will return the value for perf_event_mmap_page::index for this event,
- * if no implementation is provided it will default to: event->hw.idx + 1.
- */
- int (*event_idx) (struct perf_event *event); /*optional */
-
- /*
- * flush branch stack on context-switches (needed in cpu-wide mode)
- */
- void (*flush_branch_stack) (void);
-};
-
-/**
- * enum perf_event_active_state - the states of a event
- */
-enum perf_event_active_state {
- PERF_EVENT_STATE_ERROR = -2,
- PERF_EVENT_STATE_OFF = -1,
- PERF_EVENT_STATE_INACTIVE = 0,
- PERF_EVENT_STATE_ACTIVE = 1,
-};
-
-struct file;
-struct perf_sample_data;
-
-typedef void (*perf_overflow_handler_t)(struct perf_event *,
- struct perf_sample_data *,
- struct pt_regs *regs);
-
-enum perf_group_flag {
- PERF_GROUP_SOFTWARE = 0x1,
-};
-
-#define SWEVENT_HLIST_BITS 8
-#define SWEVENT_HLIST_SIZE (1 << SWEVENT_HLIST_BITS)
-
-struct swevent_hlist {
- struct hlist_head heads[SWEVENT_HLIST_SIZE];
- struct rcu_head rcu_head;
-};
-
-#define PERF_ATTACH_CONTEXT 0x01
-#define PERF_ATTACH_GROUP 0x02
-#define PERF_ATTACH_TASK 0x04
-
-struct perf_cgroup;
-struct ring_buffer;
-
-/**
- * struct perf_event - performance event kernel representation:
- */
-struct perf_event {
-#ifdef CONFIG_PERF_EVENTS
- /*
- * entry onto perf_event_context::event_list;
- * modifications require ctx->lock
- * RCU safe iterations.
- */
- struct list_head event_entry;
-
- /*
- * XXX: group_entry and sibling_list should be mutually exclusive;
- * either you're a sibling on a group, or you're the group leader.
- * Rework the code to always use the same list element.
- *
- * Locked for modification by both ctx->mutex and ctx->lock; holding
- * either sufficies for read.
- */
- struct list_head group_entry;
- struct list_head sibling_list;
-
- /*
- * We need storage to track the entries in perf_pmu_migrate_context; we
- * cannot use the event_entry because of RCU and we want to keep the
- * group in tact which avoids us using the other two entries.
- */
- struct list_head migrate_entry;
-
- struct hlist_node hlist_entry;
- int nr_siblings;
- int group_flags;
- struct perf_event *group_leader;
- struct pmu *pmu;
-
- enum perf_event_active_state state;
- unsigned int attach_state;
- local64_t count;
- atomic64_t child_count;
-
- /*
- * These are the total time in nanoseconds that the event
- * has been enabled (i.e. eligible to run, and the task has
- * been scheduled in, if this is a per-task event)
- * and running (scheduled onto the CPU), respectively.
- *
- * They are computed from tstamp_enabled, tstamp_running and
- * tstamp_stopped when the event is in INACTIVE or ACTIVE state.
- */
- u64 total_time_enabled;
- u64 total_time_running;
-
- /*
- * These are timestamps used for computing total_time_enabled
- * and total_time_running when the event is in INACTIVE or
- * ACTIVE state, measured in nanoseconds from an arbitrary point
- * in time.
- * tstamp_enabled: the notional time when the event was enabled
- * tstamp_running: the notional time when the event was scheduled on
- * tstamp_stopped: in INACTIVE state, the notional time when the
- * event was scheduled off.
- */
- u64 tstamp_enabled;
- u64 tstamp_running;
- u64 tstamp_stopped;
-
- /*
- * timestamp shadows the actual context timing but it can
- * be safely used in NMI interrupt context. It reflects the
- * context time as it was when the event was last scheduled in.
- *
- * ctx_time already accounts for ctx->timestamp. Therefore to
- * compute ctx_time for a sample, simply add perf_clock().
- */
- u64 shadow_ctx_time;
-
- struct perf_event_attr attr;
- u16 header_size;
- u16 id_header_size;
- u16 read_size;
- struct hw_perf_event hw;
-
- struct perf_event_context *ctx;
- atomic_long_t refcount;
-
- /*
- * These accumulate total time (in nanoseconds) that children
- * events have been enabled and running, respectively.
- */
- atomic64_t child_total_time_enabled;
- atomic64_t child_total_time_running;
-
- /*
- * Protect attach/detach and child_list:
- */
- struct mutex child_mutex;
- struct list_head child_list;
- struct perf_event *parent;
-
- int oncpu;
- int cpu;
-
- struct list_head owner_entry;
- struct task_struct *owner;
-
- /* mmap bits */
- struct mutex mmap_mutex;
- atomic_t mmap_count;
-
- struct ring_buffer *rb;
- struct list_head rb_entry;
-
- /* poll related */
- wait_queue_head_t waitq;
- struct fasync_struct *fasync;
-
- /* delayed work for NMIs and such */
- int pending_wakeup;
- int pending_kill;
- int pending_disable;
- struct irq_work pending;
-
- atomic_t event_limit;
-
- void (*destroy)(struct perf_event *);
- struct rcu_head rcu_head;
-
- struct pid_namespace *ns;
- u64 id;
-
- perf_overflow_handler_t overflow_handler;
- void *overflow_handler_context;
-
-#ifdef CONFIG_EVENT_TRACING
- struct ftrace_event_call *tp_event;
- struct event_filter *filter;
-#ifdef CONFIG_FUNCTION_TRACER
- struct ftrace_ops ftrace_ops;
-#endif
-#endif
-
-#ifdef CONFIG_CGROUP_PERF
- struct perf_cgroup *cgrp; /* cgroup event is attach to */
- int cgrp_defer_enabled;
-#endif
-
-#endif /* CONFIG_PERF_EVENTS */
-};
-
-enum perf_event_context_type {
- task_context,
- cpu_context,
-};
-
-/**
- * struct perf_event_context - event context structure
- *
- * Used as a container for task events and CPU events as well:
- */
-struct perf_event_context {
- struct pmu *pmu;
- enum perf_event_context_type type;
- /*
- * Protect the states of the events in the list,
- * nr_active, and the list:
- */
- raw_spinlock_t lock;
- /*
- * Protect the list of events. Locking either mutex or lock
- * is sufficient to ensure the list doesn't change; to change
- * the list you need to lock both the mutex and the spinlock.
- */
- struct mutex mutex;
-
- struct list_head pinned_groups;
- struct list_head flexible_groups;
- struct list_head event_list;
- int nr_events;
- int nr_active;
- int is_active;
- int nr_stat;
- int nr_freq;
- int rotate_disable;
- atomic_t refcount;
- struct task_struct *task;
-
- /*
- * Context clock, runs when context enabled.
- */
- u64 time;
- u64 timestamp;
-
- /*
- * These fields let us detect when two contexts have both
- * been cloned (inherited) from a common ancestor.
- */
- struct perf_event_context *parent_ctx;
- u64 parent_gen;
- u64 generation;
- int pin_count;
- int nr_cgroups; /* cgroup evts */
- int nr_branch_stack; /* branch_stack evt */
- struct rcu_head rcu_head;
-};
-
-/*
- * Number of contexts where an event can trigger:
- * task, softirq, hardirq, nmi.
- */
-#define PERF_NR_CONTEXTS 4
-
-/**
- * struct perf_event_cpu_context - per cpu event context structure
- */
-struct perf_cpu_context {
- struct perf_event_context ctx;
- struct perf_event_context *task_ctx;
- int active_oncpu;
- int exclusive;
- struct hrtimer hrtimer;
- ktime_t hrtimer_interval;
- struct list_head rotation_list;
- struct pmu *unique_pmu;
- struct perf_cgroup *cgrp;
-};
-
-struct perf_output_handle {
- struct perf_event *event;
- struct ring_buffer *rb;
- unsigned long wakeup;
- unsigned long size;
- void *addr;
- int page;
-};
-
-#ifdef CONFIG_PERF_EVENTS
-
-extern int perf_pmu_register(struct pmu *pmu, const char *name, int type);
-extern void perf_pmu_unregister(struct pmu *pmu);
-
-extern int perf_num_counters(void);
-extern const char *perf_pmu_name(void);
-extern void __perf_event_task_sched_in(struct task_struct *prev,
- struct task_struct *task);
-extern void __perf_event_task_sched_out(struct task_struct *prev,
- struct task_struct *next);
-extern int perf_event_init_task(struct task_struct *child);
-extern void perf_event_exit_task(struct task_struct *child);
-extern void perf_event_free_task(struct task_struct *task);
-extern void perf_event_delayed_put(struct task_struct *task);
-extern void perf_event_print_debug(void);
-extern void perf_pmu_disable(struct pmu *pmu);
-extern void perf_pmu_enable(struct pmu *pmu);
-extern int perf_event_task_disable(void);
-extern int perf_event_task_enable(void);
-extern int perf_event_refresh(struct perf_event *event, int refresh);
-extern void perf_event_update_userpage(struct perf_event *event);
-extern int perf_event_release_kernel(struct perf_event *event);
-extern struct perf_event *
-perf_event_create_kernel_counter(struct perf_event_attr *attr,
- int cpu,
- struct task_struct *task,
- perf_overflow_handler_t callback,
- void *context);
-extern void perf_pmu_migrate_context(struct pmu *pmu,
- int src_cpu, int dst_cpu);
-extern u64 perf_event_read_value(struct perf_event *event,
- u64 *enabled, u64 *running);
-
-
-struct perf_sample_data {
- u64 type;
-
- u64 ip;
- struct {
- u32 pid;
- u32 tid;
- } tid_entry;
- u64 time;
- u64 addr;
- u64 id;
- u64 stream_id;
- struct {
- u32 cpu;
- u32 reserved;
- } cpu_entry;
- u64 period;
- union perf_mem_data_src data_src;
- struct perf_callchain_entry *callchain;
- struct perf_raw_record *raw;
- struct perf_branch_stack *br_stack;
- struct perf_regs_user regs_user;
- u64 stack_user_size;
- u64 weight;
-};
-
-static inline void perf_sample_data_init(struct perf_sample_data *data,
- u64 addr, u64 period)
-{
- /* remaining struct members initialized in perf_prepare_sample() */
- data->addr = addr;
- data->raw = NULL;
- data->br_stack = NULL;
- data->period = period;
- data->regs_user.abi = PERF_SAMPLE_REGS_ABI_NONE;
- data->regs_user.regs = NULL;
- data->stack_user_size = 0;
- data->weight = 0;
- data->data_src.val = 0;
-}
-
-extern void perf_output_sample(struct perf_output_handle *handle,
- struct perf_event_header *header,
- struct perf_sample_data *data,
- struct perf_event *event);
-extern void perf_prepare_sample(struct perf_event_header *header,
- struct perf_sample_data *data,
- struct perf_event *event,
- struct pt_regs *regs);
-
-extern int perf_event_overflow(struct perf_event *event,
- struct perf_sample_data *data,
- struct pt_regs *regs);
-
-static inline bool is_sampling_event(struct perf_event *event)
-{
- return event->attr.sample_period != 0;
-}
-
-/*
- * Return 1 for a software event, 0 for a hardware event
- */
-static inline int is_software_event(struct perf_event *event)
-{
- return event->pmu->task_ctx_nr == perf_sw_context;
-}
-
-extern struct static_key perf_swevent_enabled[PERF_COUNT_SW_MAX];
-
-extern void __perf_sw_event(u32, u64, struct pt_regs *, u64);
-
-#ifndef perf_arch_fetch_caller_regs
-static inline void perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip) { }
-#endif
-
-/*
- * Take a snapshot of the regs. Skip ip and frame pointer to
- * the nth caller. We only need a few of the regs:
- * - ip for PERF_SAMPLE_IP
- * - cs for user_mode() tests
- * - bp for callchains
- * - eflags, for future purposes, just in case
- */
-static inline void perf_fetch_caller_regs(struct pt_regs *regs)
-{
- memset(regs, 0, sizeof(*regs));
-
- perf_arch_fetch_caller_regs(regs, CALLER_ADDR0);
-}
-
-static __always_inline void
-perf_sw_event(u32 event_id, u64 nr, struct pt_regs *regs, u64 addr)
-{
- struct pt_regs hot_regs;
-
- if (static_key_false(&perf_swevent_enabled[event_id])) {
- if (!regs) {
- perf_fetch_caller_regs(&hot_regs);
- regs = &hot_regs;
- }
- __perf_sw_event(event_id, nr, regs, addr);
- }
-}
-
-extern struct static_key_deferred perf_sched_events;
-
-static inline void perf_event_task_sched_in(struct task_struct *prev,
- struct task_struct *task)
-{
- if (static_key_false(&perf_sched_events.key))
- __perf_event_task_sched_in(prev, task);
-}
-
-static inline void perf_event_task_sched_out(struct task_struct *prev,
- struct task_struct *next)
-{
- perf_sw_event(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, NULL, 0);
-
- if (static_key_false(&perf_sched_events.key))
- __perf_event_task_sched_out(prev, next);
-}
-
-extern void perf_event_mmap(struct vm_area_struct *vma);
-extern struct perf_guest_info_callbacks *perf_guest_cbs;
-extern int perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks);
-extern int perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks);
-
-extern void perf_event_comm(struct task_struct *tsk);
-extern void perf_event_fork(struct task_struct *tsk);
-
-/* Callchains */
-DECLARE_PER_CPU(struct perf_callchain_entry, perf_callchain_entry);
-
-extern void perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs);
-extern void perf_callchain_kernel(struct perf_callchain_entry *entry, struct pt_regs *regs);
-
-static inline void perf_callchain_store(struct perf_callchain_entry *entry, u64 ip)
-{
- if (entry->nr < PERF_MAX_STACK_DEPTH)
- entry->ip[entry->nr++] = ip;
-}
-
-extern int sysctl_perf_event_paranoid;
-extern int sysctl_perf_event_mlock;
-extern int sysctl_perf_event_sample_rate;
-extern int sysctl_perf_cpu_time_max_percent;
-
-extern void perf_sample_event_took(u64 sample_len_ns);
-
-extern int perf_proc_update_handler(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp,
- loff_t *ppos);
-extern int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp,
- loff_t *ppos);
-
-
-static inline bool perf_paranoid_tracepoint_raw(void)
-{
- return sysctl_perf_event_paranoid > -1;
-}
-
-static inline bool perf_paranoid_cpu(void)
-{
- return sysctl_perf_event_paranoid > 0;
-}
-
-static inline bool perf_paranoid_kernel(void)
-{
- return sysctl_perf_event_paranoid > 1;
-}
-
-extern void perf_event_init(void);
-extern void perf_tp_event(u64 addr, u64 count, void *record,
- int entry_size, struct pt_regs *regs,
- struct hlist_head *head, int rctx,
- struct task_struct *task);
-extern void perf_bp_event(struct perf_event *event, void *data);
-
-#ifndef perf_misc_flags
-# define perf_misc_flags(regs) \
- (user_mode(regs) ? PERF_RECORD_MISC_USER : PERF_RECORD_MISC_KERNEL)
-# define perf_instruction_pointer(regs) instruction_pointer(regs)
-#endif
-
-static inline bool has_branch_stack(struct perf_event *event)
-{
- return event->attr.sample_type & PERF_SAMPLE_BRANCH_STACK;
-}
-
-extern int perf_output_begin(struct perf_output_handle *handle,
- struct perf_event *event, unsigned int size);
-extern void perf_output_end(struct perf_output_handle *handle);
-extern unsigned int perf_output_copy(struct perf_output_handle *handle,
- const void *buf, unsigned int len);
-extern unsigned int perf_output_skip(struct perf_output_handle *handle,
- unsigned int len);
-extern int perf_swevent_get_recursion_context(void);
-extern void perf_swevent_put_recursion_context(int rctx);
-extern u64 perf_swevent_set_period(struct perf_event *event);
-extern void perf_event_enable(struct perf_event *event);
-extern void perf_event_disable(struct perf_event *event);
-extern int __perf_event_disable(void *info);
-extern void perf_event_task_tick(void);
-#else
-static inline void
-perf_event_task_sched_in(struct task_struct *prev,
- struct task_struct *task) { }
-static inline void
-perf_event_task_sched_out(struct task_struct *prev,
- struct task_struct *next) { }
-static inline int perf_event_init_task(struct task_struct *child) { return 0; }
-static inline void perf_event_exit_task(struct task_struct *child) { }
-static inline void perf_event_free_task(struct task_struct *task) { }
-static inline void perf_event_delayed_put(struct task_struct *task) { }
-static inline void perf_event_print_debug(void) { }
-static inline int perf_event_task_disable(void) { return -EINVAL; }
-static inline int perf_event_task_enable(void) { return -EINVAL; }
-static inline int perf_event_refresh(struct perf_event *event, int refresh)
-{
- return -EINVAL;
-}
-
-static inline void
-perf_sw_event(u32 event_id, u64 nr, struct pt_regs *regs, u64 addr) { }
-static inline void
-perf_bp_event(struct perf_event *event, void *data) { }
-
-static inline int perf_register_guest_info_callbacks
-(struct perf_guest_info_callbacks *callbacks) { return 0; }
-static inline int perf_unregister_guest_info_callbacks
-(struct perf_guest_info_callbacks *callbacks) { return 0; }
-
-static inline void perf_event_mmap(struct vm_area_struct *vma) { }
-static inline void perf_event_comm(struct task_struct *tsk) { }
-static inline void perf_event_fork(struct task_struct *tsk) { }
-static inline void perf_event_init(void) { }
-static inline int perf_swevent_get_recursion_context(void) { return -1; }
-static inline void perf_swevent_put_recursion_context(int rctx) { }
-static inline u64 perf_swevent_set_period(struct perf_event *event) { return 0; }
-static inline void perf_event_enable(struct perf_event *event) { }
-static inline void perf_event_disable(struct perf_event *event) { }
-static inline int __perf_event_disable(void *info) { return -1; }
-static inline void perf_event_task_tick(void) { }
-#endif
-
-#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_NO_HZ_FULL)
-extern bool perf_event_can_stop_tick(void);
-#else
-static inline bool perf_event_can_stop_tick(void) { return true; }
-#endif
-
-#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_INTEL)
-extern void perf_restore_debug_store(void);
-#else
-static inline void perf_restore_debug_store(void) { }
-#endif
-
-#define perf_output_put(handle, x) perf_output_copy((handle), &(x), sizeof(x))
-
-/*
- * This has to have a higher priority than migration_notifier in sched/core.c.
- */
-#define perf_cpu_notifier(fn) \
-do { \
- static struct notifier_block fn##_nb = \
- { .notifier_call = fn, .priority = CPU_PRI_PERF }; \
- unsigned long cpu = smp_processor_id(); \
- unsigned long flags; \
- fn(&fn##_nb, (unsigned long)CPU_UP_PREPARE, \
- (void *)(unsigned long)cpu); \
- local_irq_save(flags); \
- fn(&fn##_nb, (unsigned long)CPU_STARTING, \
- (void *)(unsigned long)cpu); \
- local_irq_restore(flags); \
- fn(&fn##_nb, (unsigned long)CPU_ONLINE, \
- (void *)(unsigned long)cpu); \
- register_cpu_notifier(&fn##_nb); \
-} while (0)
-
-
-struct perf_pmu_events_attr {
- struct device_attribute attr;
- u64 id;
- const char *event_str;
-};
-
-#define PMU_EVENT_ATTR(_name, _var, _id, _show) \
-static struct perf_pmu_events_attr _var = { \
- .attr = __ATTR(_name, 0444, _show, NULL), \
- .id = _id, \
-};
-
-#define PMU_FORMAT_ATTR(_name, _format) \
-static ssize_t \
-_name##_show(struct device *dev, \
- struct device_attribute *attr, \
- char *page) \
-{ \
- BUILD_BUG_ON(sizeof(_format) >= PAGE_SIZE); \
- return sprintf(page, _format "\n"); \
-} \
- \
-static struct device_attribute format_attr_##_name = __ATTR_RO(_name)
-
-#endif /* _LINUX_PERF_EVENT_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-20 13:59:50 +0000