enable_on_exec : 1, /* next exec enables */
task : 1, /* trace fork/exit */
watermark : 1, /* wakeup_watermark */
-
- __reserved_1 : 49;
+ /*
+ * precise_ip:
+ *
+ * 0 - SAMPLE_IP can have arbitrary skid
+ * 1 - SAMPLE_IP must have constant skid
+ * 2 - SAMPLE_IP requested to have 0 skid
+ * 3 - SAMPLE_IP must have 0 skid
+ *
+ * See also PERF_RECORD_MISC_EXACT_IP
+ */
+ precise_ip : 2, /* skid constraint */
+
+ __reserved_1 : 47;
union {
__u32 wakeup_events; /* wakeup every n events */
__u64 data_tail; /* user-space written tail */
};
-#define PERF_RECORD_MISC_CPUMODE_MASK (3 << 0)
+#define PERF_RECORD_MISC_CPUMODE_MASK (7 << 0)
#define PERF_RECORD_MISC_CPUMODE_UNKNOWN (0 << 0)
#define PERF_RECORD_MISC_KERNEL (1 << 0)
#define PERF_RECORD_MISC_USER (2 << 0)
#define PERF_RECORD_MISC_HYPERVISOR (3 << 0)
+#define PERF_RECORD_MISC_GUEST_KERNEL (4 << 0)
+#define PERF_RECORD_MISC_GUEST_USER (5 << 0)
+
+/*
+ * Indicates that the content of PERF_SAMPLE_IP points to
+ * the actual instruction that triggered the event. See also
+ * perf_event_attr::precise_ip.
+ */
+#define PERF_RECORD_MISC_EXACT_IP (1 << 14)
+/*
+ * Reserve the last bit to indicate some extended misc field
+ */
+#define PERF_RECORD_MISC_EXT_RESERVED (1 << 15)
struct perf_event_header {
__u32 type;
# include <asm/perf_event.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/ftrace.h>
#include <linux/cpu.h>
#include <asm/atomic.h>
+#include <asm/local.h>
#define PERF_MAX_STACK_DEPTH 255
void *data;
};
+struct perf_branch_entry {
+ __u64 from;
+ __u64 to;
+ __u64 flags;
+};
+
+struct perf_branch_stack {
+ __u64 nr;
+ struct perf_branch_entry entries[0];
+};
+
struct task_struct;
/**
struct perf_event;
+#define PERF_EVENT_TXN_STARTED 1
+
/**
* struct pmu - generic performance monitoring unit
*/
void (*stop) (struct perf_event *event);
void (*read) (struct perf_event *event);
void (*unthrottle) (struct perf_event *event);
+
+ /*
+ * group events scheduling is treated as a transaction,
+ * add group events as a whole and perform one schedulability test.
+ * If test fails, roll back the whole group
+ */
+
+ void (*start_txn) (const struct pmu *pmu);
+ void (*cancel_txn) (const struct pmu *pmu);
+ int (*commit_txn) (const struct pmu *pmu);
};
/**
#ifdef CONFIG_PERF_USE_VMALLOC
struct work_struct work;
#endif
- int data_order;
+ int data_order; /* allocation order */
int nr_pages; /* nr of data pages */
int writable; /* are we writable */
int nr_locked; /* nr pages mlocked */
atomic_t poll; /* POLL_ for wakeups */
- atomic_t events; /* event_id limit */
- atomic_long_t head; /* write position */
- atomic_long_t done_head; /* completed head */
-
- atomic_t lock; /* concurrent writes */
- atomic_t wakeup; /* needs a wakeup */
- atomic_t lost; /* nr records lost */
+ local_t head; /* write position */
+ local_t nest; /* nested writers */
+ local_t events; /* event limit */
+ local_t wakeup; /* needs a wakeup */
+ local_t lost; /* nr records lost */
long watermark; /* wakeup watermark */
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;
+};
+
/**
* struct perf_event - performance event kernel representation:
*/
struct list_head group_entry;
struct list_head event_entry;
struct list_head sibling_list;
+ struct hlist_node hlist_entry;
int nr_siblings;
int group_flags;
struct perf_event *group_leader;
perf_overflow_handler_t overflow_handler;
#ifdef CONFIG_EVENT_TRACING
+ struct ftrace_event_call *tp_event;
struct event_filter *filter;
#endif
int active_oncpu;
int max_pertask;
int exclusive;
+ struct swevent_hlist *swevent_hlist;
+ struct mutex hlist_mutex;
+ int hlist_refcount;
/*
* Recursion avoidance:
struct perf_mmap_data *data;
unsigned long head;
unsigned long offset;
+ unsigned long wakeup;
int nmi;
int sample;
- int locked;
};
#ifdef CONFIG_PERF_EVENTS
extern void perf_enable(void);
extern int perf_event_task_disable(void);
extern int perf_event_task_enable(void);
-extern int hw_perf_group_sched_in(struct perf_event *group_leader,
- struct perf_cpu_context *cpuctx,
- struct perf_event_context *ctx);
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_mmap(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);
}
extern void perf_event_init(void);
-extern void perf_tp_event(int event_id, u64 addr, u64 count, void *record,
- int entry_size, struct pt_regs *regs);
+extern void perf_tp_event(u64 addr, u64 count, void *record,
+ int entry_size, struct pt_regs *regs,
+ struct hlist_head *head);
extern void perf_bp_event(struct perf_event *event, void *data);
#ifndef perf_misc_flags
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) { }
git://bbs.cooldavid.org / net-next-2.6.git / blobdiff