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-rw-r--r--include/linux/perf_counter.h441
-rw-r--r--include/linux/perf_event.h98
2 files changed, 490 insertions, 49 deletions
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
new file mode 100644
index 000000000000..368bd70f1d2d
--- /dev/null
+++ b/include/linux/perf_counter.h
@@ -0,0 +1,441 @@
+/*
+ * NOTE: this file will be removed in a future kernel release, it is
+ * provided as a courtesy copy of user-space code that relies on the
+ * old (pre-rename) symbols and constants.
+ *
+ * Performance events:
+ *
+ * Copyright (C) 2008-2009, Thomas Gleixner <tglx@linutronix.de>
+ * Copyright (C) 2008-2009, Red Hat, Inc., Ingo Molnar
+ * Copyright (C) 2008-2009, 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_COUNTER_H
+#define _LINUX_PERF_COUNTER_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#include <asm/byteorder.h>
+
+/*
+ * User-space ABI bits:
+ */
+
+/*
+ * attr.type
+ */
+enum perf_type_id {
+ PERF_TYPE_HARDWARE = 0,
+ PERF_TYPE_SOFTWARE = 1,
+ PERF_TYPE_TRACEPOINT = 2,
+ PERF_TYPE_HW_CACHE = 3,
+ PERF_TYPE_RAW = 4,
+
+ PERF_TYPE_MAX, /* non-ABI */
+};
+
+/*
+ * Generalized performance counter event types, used by the
+ * attr.event_id parameter of the sys_perf_counter_open()
+ * syscall:
+ */
+enum perf_hw_id {
+ /*
+ * Common hardware events, generalized by the kernel:
+ */
+ PERF_COUNT_HW_CPU_CYCLES = 0,
+ PERF_COUNT_HW_INSTRUCTIONS = 1,
+ PERF_COUNT_HW_CACHE_REFERENCES = 2,
+ PERF_COUNT_HW_CACHE_MISSES = 3,
+ PERF_COUNT_HW_BRANCH_INSTRUCTIONS = 4,
+ PERF_COUNT_HW_BRANCH_MISSES = 5,
+ PERF_COUNT_HW_BUS_CYCLES = 6,
+
+ PERF_COUNT_HW_MAX, /* non-ABI */
+};
+
+/*
+ * Generalized hardware cache counters:
+ *
+ * { L1-D, L1-I, LLC, ITLB, DTLB, BPU } x
+ * { read, write, prefetch } x
+ * { accesses, misses }
+ */
+enum perf_hw_cache_id {
+ PERF_COUNT_HW_CACHE_L1D = 0,
+ PERF_COUNT_HW_CACHE_L1I = 1,
+ PERF_COUNT_HW_CACHE_LL = 2,
+ PERF_COUNT_HW_CACHE_DTLB = 3,
+ PERF_COUNT_HW_CACHE_ITLB = 4,
+ PERF_COUNT_HW_CACHE_BPU = 5,
+
+ PERF_COUNT_HW_CACHE_MAX, /* non-ABI */
+};
+
+enum perf_hw_cache_op_id {
+ PERF_COUNT_HW_CACHE_OP_READ = 0,
+ PERF_COUNT_HW_CACHE_OP_WRITE = 1,
+ PERF_COUNT_HW_CACHE_OP_PREFETCH = 2,
+
+ PERF_COUNT_HW_CACHE_OP_MAX, /* non-ABI */
+};
+
+enum perf_hw_cache_op_result_id {
+ PERF_COUNT_HW_CACHE_RESULT_ACCESS = 0,
+ PERF_COUNT_HW_CACHE_RESULT_MISS = 1,
+
+ PERF_COUNT_HW_CACHE_RESULT_MAX, /* non-ABI */
+};
+
+/*
+ * Special "software" counters provided by the kernel, even if the hardware
+ * does not support performance counters. These counters measure various
+ * physical and sw events of the kernel (and allow the profiling of them as
+ * well):
+ */
+enum perf_sw_ids {
+ PERF_COUNT_SW_CPU_CLOCK = 0,
+ PERF_COUNT_SW_TASK_CLOCK = 1,
+ PERF_COUNT_SW_PAGE_FAULTS = 2,
+ PERF_COUNT_SW_CONTEXT_SWITCHES = 3,
+ PERF_COUNT_SW_CPU_MIGRATIONS = 4,
+ PERF_COUNT_SW_PAGE_FAULTS_MIN = 5,
+ PERF_COUNT_SW_PAGE_FAULTS_MAJ = 6,
+
+ PERF_COUNT_SW_MAX, /* non-ABI */
+};
+
+/*
+ * Bits that can be set in attr.sample_type to request information
+ * in the overflow packets.
+ */
+enum perf_counter_sample_format {
+ PERF_SAMPLE_IP = 1U << 0,
+ PERF_SAMPLE_TID = 1U << 1,
+ PERF_SAMPLE_TIME = 1U << 2,
+ PERF_SAMPLE_ADDR = 1U << 3,
+ PERF_SAMPLE_READ = 1U << 4,
+ PERF_SAMPLE_CALLCHAIN = 1U << 5,
+ PERF_SAMPLE_ID = 1U << 6,
+ PERF_SAMPLE_CPU = 1U << 7,
+ PERF_SAMPLE_PERIOD = 1U << 8,
+ PERF_SAMPLE_STREAM_ID = 1U << 9,
+ PERF_SAMPLE_RAW = 1U << 10,
+
+ PERF_SAMPLE_MAX = 1U << 11, /* non-ABI */
+};
+
+/*
+ * The format of the data returned by read() on a perf counter fd,
+ * as specified by attr.read_format:
+ *
+ * struct read_format {
+ * { u64 value;
+ * { u64 time_enabled; } && PERF_FORMAT_ENABLED
+ * { u64 time_running; } && PERF_FORMAT_RUNNING
+ * { u64 id; } && PERF_FORMAT_ID
+ * } && !PERF_FORMAT_GROUP
+ *
+ * { u64 nr;
+ * { u64 time_enabled; } && PERF_FORMAT_ENABLED
+ * { u64 time_running; } && PERF_FORMAT_RUNNING
+ * { u64 value;
+ * { u64 id; } && PERF_FORMAT_ID
+ * } cntr[nr];
+ * } && PERF_FORMAT_GROUP
+ * };
+ */
+enum perf_counter_read_format {
+ PERF_FORMAT_TOTAL_TIME_ENABLED = 1U << 0,
+ PERF_FORMAT_TOTAL_TIME_RUNNING = 1U << 1,
+ PERF_FORMAT_ID = 1U << 2,
+ PERF_FORMAT_GROUP = 1U << 3,
+
+ PERF_FORMAT_MAX = 1U << 4, /* non-ABI */
+};
+
+#define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */
+
+/*
+ * Hardware event to monitor via a performance monitoring counter:
+ */
+struct perf_counter_attr {
+
+ /*
+ * Major type: hardware/software/tracepoint/etc.
+ */
+ __u32 type;
+
+ /*
+ * Size of the attr structure, for fwd/bwd compat.
+ */
+ __u32 size;
+
+ /*
+ * Type specific configuration information.
+ */
+ __u64 config;
+
+ union {
+ __u64 sample_period;
+ __u64 sample_freq;
+ };
+
+ __u64 sample_type;
+ __u64 read_format;
+
+ __u64 disabled : 1, /* off by default */
+ inherit : 1, /* children inherit it */
+ pinned : 1, /* must always be on PMU */
+ exclusive : 1, /* only group on PMU */
+ exclude_user : 1, /* don't count user */
+ exclude_kernel : 1, /* ditto kernel */
+ exclude_hv : 1, /* ditto hypervisor */
+ exclude_idle : 1, /* don't count when idle */
+ mmap : 1, /* include mmap data */
+ comm : 1, /* include comm data */
+ freq : 1, /* use freq, not period */
+ inherit_stat : 1, /* per task counts */
+ enable_on_exec : 1, /* next exec enables */
+ task : 1, /* trace fork/exit */
+ watermark : 1, /* wakeup_watermark */
+
+ __reserved_1 : 49;
+
+ union {
+ __u32 wakeup_events; /* wakeup every n events */
+ __u32 wakeup_watermark; /* bytes before wakeup */
+ };
+ __u32 __reserved_2;
+
+ __u64 __reserved_3;
+};
+
+/*
+ * Ioctls that can be done on a perf counter fd:
+ */
+#define PERF_COUNTER_IOC_ENABLE _IO ('$', 0)
+#define PERF_COUNTER_IOC_DISABLE _IO ('$', 1)
+#define PERF_COUNTER_IOC_REFRESH _IO ('$', 2)
+#define PERF_COUNTER_IOC_RESET _IO ('$', 3)
+#define PERF_COUNTER_IOC_PERIOD _IOW('$', 4, u64)
+#define PERF_COUNTER_IOC_SET_OUTPUT _IO ('$', 5)
+
+enum perf_counter_ioc_flags {
+ PERF_IOC_FLAG_GROUP = 1U << 0,
+};
+
+/*
+ * Structure of the page that can be mapped via mmap
+ */
+struct perf_counter_mmap_page {
+ __u32 version; /* version number of this structure */
+ __u32 compat_version; /* lowest version this is compat with */
+
+ /*
+ * Bits needed to read the hw counters in user-space.
+ *
+ * u32 seq;
+ * s64 count;
+ *
+ * do {
+ * seq = pc->lock;
+ *
+ * barrier()
+ * if (pc->index) {
+ * count = pmc_read(pc->index - 1);
+ * count += pc->offset;
+ * } else
+ * goto regular_read;
+ *
+ * barrier();
+ * } while (pc->lock != seq);
+ *
+ * NOTE: for obvious reason this only works on self-monitoring
+ * processes.
+ */
+ __u32 lock; /* seqlock for synchronization */
+ __u32 index; /* hardware counter identifier */
+ __s64 offset; /* add to hardware counter value */
+ __u64 time_enabled; /* time counter active */
+ __u64 time_running; /* time counter on cpu */
+
+ /*
+ * Hole for extension of the self monitor capabilities
+ */
+
+ __u64 __reserved[123]; /* align to 1k */
+
+ /*
+ * Control data for the mmap() data buffer.
+ *
+ * User-space reading the @data_head value should issue an rmb(), on
+ * SMP capable platforms, after reading this value -- see
+ * perf_counter_wakeup().
+ *
+ * When the mapping is PROT_WRITE the @data_tail value should be
+ * written by userspace to reflect the last read data. In this case
+ * the kernel will not over-write unread data.
+ */
+ __u64 data_head; /* head in the data section */
+ __u64 data_tail; /* user-space written tail */
+};
+
+#define PERF_EVENT_MISC_CPUMODE_MASK (3 << 0)
+#define PERF_EVENT_MISC_CPUMODE_UNKNOWN (0 << 0)
+#define PERF_EVENT_MISC_KERNEL (1 << 0)
+#define PERF_EVENT_MISC_USER (2 << 0)
+#define PERF_EVENT_MISC_HYPERVISOR (3 << 0)
+
+struct perf_event_header {
+ __u32 type;
+ __u16 misc;
+ __u16 size;
+};
+
+enum perf_event_type {
+
+ /*
+ * The MMAP events record the PROT_EXEC mappings so that we can
+ * correlate userspace IPs to code. They have the following structure:
+ *
+ * struct {
+ * struct perf_event_header header;
+ *
+ * u32 pid, tid;
+ * u64 addr;
+ * u64 len;
+ * u64 pgoff;
+ * char filename[];
+ * };
+ */
+ PERF_EVENT_MMAP = 1,
+
+ /*
+ * struct {
+ * struct perf_event_header header;
+ * u64 id;
+ * u64 lost;
+ * };
+ */
+ PERF_EVENT_LOST = 2,
+
+ /*
+ * struct {
+ * struct perf_event_header header;
+ *
+ * u32 pid, tid;
+ * char comm[];
+ * };
+ */
+ PERF_EVENT_COMM = 3,
+
+ /*
+ * struct {
+ * struct perf_event_header header;
+ * u32 pid, ppid;
+ * u32 tid, ptid;
+ * u64 time;
+ * };
+ */
+ PERF_EVENT_EXIT = 4,
+
+ /*
+ * struct {
+ * struct perf_event_header header;
+ * u64 time;
+ * u64 id;
+ * u64 stream_id;
+ * };
+ */
+ PERF_EVENT_THROTTLE = 5,
+ PERF_EVENT_UNTHROTTLE = 6,
+
+ /*
+ * struct {
+ * struct perf_event_header header;
+ * u32 pid, ppid;
+ * u32 tid, ptid;
+ * { u64 time; } && PERF_SAMPLE_TIME
+ * };
+ */
+ PERF_EVENT_FORK = 7,
+
+ /*
+ * struct {
+ * struct perf_event_header header;
+ * u32 pid, tid;
+ *
+ * struct read_format values;
+ * };
+ */
+ PERF_EVENT_READ = 8,
+
+ /*
+ * struct {
+ * struct perf_event_header header;
+ *
+ * { u64 ip; } && PERF_SAMPLE_IP
+ * { u32 pid, tid; } && PERF_SAMPLE_TID
+ * { u64 time; } && PERF_SAMPLE_TIME
+ * { u64 addr; } && PERF_SAMPLE_ADDR
+ * { u64 id; } && PERF_SAMPLE_ID
+ * { u64 stream_id;} && PERF_SAMPLE_STREAM_ID
+ * { u32 cpu, res; } && PERF_SAMPLE_CPU
+ * { u64 period; } && PERF_SAMPLE_PERIOD
+ *
+ * { struct read_format values; } && PERF_SAMPLE_READ
+ *
+ * { u64 nr,
+ * u64 ips[nr]; } && PERF_SAMPLE_CALLCHAIN
+ *
+ * #
+ * # The RAW record below is opaque data wrt the ABI
+ * #
+ * # That is, the ABI doesn't make any promises wrt to
+ * # the stability of its content, it may vary depending
+ * # on event, hardware, kernel version and phase of
+ * # the moon.
+ * #
+ * # In other words, PERF_SAMPLE_RAW contents are not an ABI.
+ * #
+ *
+ * { u32 size;
+ * char data[size];}&& PERF_SAMPLE_RAW
+ * };
+ */
+ PERF_EVENT_SAMPLE = 9,
+
+ PERF_EVENT_MAX, /* non-ABI */
+};
+
+enum perf_callchain_context {
+ PERF_CONTEXT_HV = (__u64)-32,
+ PERF_CONTEXT_KERNEL = (__u64)-128,
+ PERF_CONTEXT_USER = (__u64)-512,
+
+ PERF_CONTEXT_GUEST = (__u64)-2048,
+ PERF_CONTEXT_GUEST_KERNEL = (__u64)-2176,
+ PERF_CONTEXT_GUEST_USER = (__u64)-2560,
+
+ PERF_CONTEXT_MAX = (__u64)-4095,
+};
+
+#define PERF_FLAG_FD_NO_GROUP (1U << 0)
+#define PERF_FLAG_FD_OUTPUT (1U << 1)
+
+/*
+ * In case some app still references the old symbols:
+ */
+
+#define __NR_perf_counter_open __NR_perf_event_open
+
+#define PR_TASK_PERF_COUNTERS_DISABLE PR_TASK_PERF_EVENTS_DISABLE
+#define PR_TASK_PERF_COUNTERS_ENABLE PR_TASK_PERF_EVENTS_ENABLE
+
+#endif /* _LINUX_PERF_COUNTER_H */
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index ae9d9ed6df2a..acefaf71e6dd 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1,15 +1,15 @@
/*
- * Performance events:
+ * Performance events:
*
* Copyright (C) 2008-2009, Thomas Gleixner <tglx@linutronix.de>
* Copyright (C) 2008-2009, Red Hat, Inc., Ingo Molnar
* Copyright (C) 2008-2009, Red Hat, Inc., Peter Zijlstra
*
- * Data type definitions, declarations, prototypes.
+ * Data type definitions, declarations, prototypes.
*
* Started by: Thomas Gleixner and Ingo Molnar
*
- * For licencing details see kernel-base/COPYING
+ * For licencing details see kernel-base/COPYING
*/
#ifndef _LINUX_PERF_EVENT_H
#define _LINUX_PERF_EVENT_H
@@ -131,19 +131,19 @@ enum perf_event_sample_format {
* as specified by attr.read_format:
*
* struct read_format {
- * { u64 value;
- * { u64 time_enabled; } && PERF_FORMAT_ENABLED
- * { u64 time_running; } && PERF_FORMAT_RUNNING
- * { u64 id; } && PERF_FORMAT_ID
- * } && !PERF_FORMAT_GROUP
+ * { u64 value;
+ * { u64 time_enabled; } && PERF_FORMAT_ENABLED
+ * { u64 time_running; } && PERF_FORMAT_RUNNING
+ * { u64 id; } && PERF_FORMAT_ID
+ * } && !PERF_FORMAT_GROUP
*
- * { u64 nr;
- * { u64 time_enabled; } && PERF_FORMAT_ENABLED
- * { u64 time_running; } && PERF_FORMAT_RUNNING
- * { u64 value;
- * { u64 id; } && PERF_FORMAT_ID
- * } cntr[nr];
- * } && PERF_FORMAT_GROUP
+ * { u64 nr;
+ * { u64 time_enabled; } && PERF_FORMAT_ENABLED
+ * { u64 time_running; } && PERF_FORMAT_RUNNING
+ * { u64 value;
+ * { u64 id; } && PERF_FORMAT_ID
+ * } cntr[nr];
+ * } && PERF_FORMAT_GROUP
* };
*/
enum perf_event_read_format {
@@ -152,7 +152,7 @@ enum perf_event_read_format {
PERF_FORMAT_ID = 1U << 2,
PERF_FORMAT_GROUP = 1U << 3,
- PERF_FORMAT_MAX = 1U << 4, /* non-ABI */
+ PERF_FORMAT_MAX = 1U << 4, /* non-ABI */
};
#define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */
@@ -216,8 +216,8 @@ struct perf_event_attr {
* Ioctls that can be done on a perf event fd:
*/
#define PERF_EVENT_IOC_ENABLE _IO ('$', 0)
-#define PERF_EVENT_IOC_DISABLE _IO ('$', 1)
-#define PERF_EVENT_IOC_REFRESH _IO ('$', 2)
+#define PERF_EVENT_IOC_DISABLE _IO ('$', 1)
+#define PERF_EVENT_IOC_REFRESH _IO ('$', 2)
#define PERF_EVENT_IOC_RESET _IO ('$', 3)
#define PERF_EVENT_IOC_PERIOD _IOW('$', 4, u64)
#define PERF_EVENT_IOC_SET_OUTPUT _IO ('$', 5)
@@ -314,9 +314,9 @@ enum perf_event_type {
/*
* struct {
- * struct perf_event_header header;
- * u64 id;
- * u64 lost;
+ * struct perf_event_header header;
+ * u64 id;
+ * u64 lost;
* };
*/
PERF_RECORD_LOST = 2,
@@ -383,23 +383,23 @@ enum perf_event_type {
* { u64 id; } && PERF_SAMPLE_ID
* { u64 stream_id;} && PERF_SAMPLE_STREAM_ID
* { u32 cpu, res; } && PERF_SAMPLE_CPU
- * { u64 period; } && PERF_SAMPLE_PERIOD
+ * { u64 period; } && PERF_SAMPLE_PERIOD
*
* { struct read_format values; } && PERF_SAMPLE_READ
*
* { u64 nr,
* u64 ips[nr]; } && PERF_SAMPLE_CALLCHAIN
*
- * #
- * # The RAW record below is opaque data wrt the ABI
- * #
- * # That is, the ABI doesn't make any promises wrt to
- * # the stability of its content, it may vary depending
- * # on event_id, hardware, kernel version and phase of
- * # the moon.
- * #
- * # In other words, PERF_SAMPLE_RAW contents are not an ABI.
- * #
+ * #
+ * # The RAW record below is opaque data wrt the ABI
+ * #
+ * # That is, the ABI doesn't make any promises wrt to
+ * # the stability of its content, it may vary depending
+ * # on event, hardware, kernel version and phase of
+ * # the moon.
+ * #
+ * # In other words, PERF_SAMPLE_RAW contents are not an ABI.
+ * #
*
* { u32 size;
* char data[size];}&& PERF_SAMPLE_RAW
@@ -503,10 +503,10 @@ struct pmu {
* enum perf_event_active_state - the states of a event
*/
enum perf_event_active_state {
- PERF_EVENT_STATE_ERROR = -2,
+ PERF_EVENT_STATE_ERROR = -2,
PERF_EVENT_STATE_OFF = -1,
PERF_EVENT_STATE_INACTIVE = 0,
- PERF_EVENT_STATE_ACTIVE = 1,
+ PERF_EVENT_STATE_ACTIVE = 1,
};
struct file;
@@ -529,7 +529,7 @@ struct perf_mmap_data {
long watermark; /* wakeup watermark */
- struct perf_event_mmap_page *user_page;
+ struct perf_event_mmap_page *user_page;
void *data_pages[0];
};
@@ -694,14 +694,14 @@ struct perf_cpu_context {
};
struct perf_output_handle {
- struct perf_event *event;
- struct perf_mmap_data *data;
- unsigned long head;
- unsigned long offset;
- int nmi;
- int sample;
- int locked;
- unsigned long flags;
+ struct perf_event *event;
+ struct perf_mmap_data *data;
+ unsigned long head;
+ unsigned long offset;
+ int nmi;
+ int sample;
+ int locked;
+ unsigned long flags;
};
#ifdef CONFIG_PERF_EVENTS
@@ -829,22 +829,22 @@ static inline void
perf_event_task_sched_out(struct task_struct *task,
struct task_struct *next, int cpu) { }
static inline void
-perf_event_task_tick(struct task_struct *task, int cpu) { }
+perf_event_task_tick(struct task_struct *task, int cpu) { }
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_do_pending(void) { }
-static inline void perf_event_print_debug(void) { }
+static inline void perf_event_do_pending(void) { }
+static inline void perf_event_print_debug(void) { }
static inline void perf_disable(void) { }
static inline void perf_enable(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_task_disable(void) { return -EINVAL; }
+static inline int perf_event_task_enable(void) { return -EINVAL; }
static inline void
perf_sw_event(u32 event_id, u64 nr, int nmi,
struct pt_regs *regs, u64 addr) { }
-static inline void perf_event_mmap(struct vm_area_struct *vma) { }
+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) { }
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-19 19:28:29 +0000