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Diffstat (limited to 'include/linux/perf_event.h')
-rw-r--r--include/linux/perf_event.h83
1 files changed, 35 insertions, 48 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index e0786e35f247..245bafdafd5e 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -61,7 +61,7 @@ enum perf_hw_id {
/*
* Generalized hardware cache events:
*
- * { L1-D, L1-I, LLC, ITLB, DTLB, BPU } x
+ * { L1-D, L1-I, LLC, ITLB, DTLB, BPU, NODE } x
* { read, write, prefetch } x
* { accesses, misses }
*/
@@ -72,6 +72,7 @@ enum perf_hw_cache_id {
PERF_COUNT_HW_CACHE_DTLB = 3,
PERF_COUNT_HW_CACHE_ITLB = 4,
PERF_COUNT_HW_CACHE_BPU = 5,
+ PERF_COUNT_HW_CACHE_NODE = 6,
PERF_COUNT_HW_CACHE_MAX, /* non-ABI */
};
@@ -508,7 +509,7 @@ struct perf_guest_info_callbacks {
#include <linux/cpu.h>
#include <linux/irq_work.h>
#include <linux/jump_label.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/local.h>
#define PERF_MAX_STACK_DEPTH 255
@@ -536,6 +537,16 @@ struct perf_branch_stack {
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 hw_perf_event - performance event hardware details:
*/
@@ -549,9 +560,7 @@ struct hw_perf_event {
unsigned long event_base;
int idx;
int last_cpu;
- unsigned int extra_reg;
- u64 extra_config;
- int extra_alloc;
+ struct hw_perf_event_extra extra_reg;
};
struct { /* software */
struct hrtimer hrtimer;
@@ -680,36 +689,9 @@ enum perf_event_active_state {
};
struct file;
-
-#define PERF_BUFFER_WRITABLE 0x01
-
-struct perf_buffer {
- atomic_t refcount;
- struct rcu_head rcu_head;
-#ifdef CONFIG_PERF_USE_VMALLOC
- struct work_struct work;
- int page_order; /* allocation order */
-#endif
- int nr_pages; /* nr of data pages */
- int writable; /* are we writable */
-
- atomic_t poll; /* POLL_ for wakeups */
-
- local_t head; /* write position */
- local_t nest; /* nested writers */
- local_t events; /* event limit */
- local_t wakeup; /* wakeup stamp */
- local_t lost; /* nr records lost */
-
- long watermark; /* wakeup watermark */
-
- struct perf_event_mmap_page *user_page;
- void *data_pages[0];
-};
-
struct perf_sample_data;
-typedef void (*perf_overflow_handler_t)(struct perf_event *, int,
+typedef void (*perf_overflow_handler_t)(struct perf_event *,
struct perf_sample_data *,
struct pt_regs *regs);
@@ -745,6 +727,8 @@ struct perf_cgroup {
};
#endif
+struct ring_buffer;
+
/**
* struct perf_event - performance event kernel representation:
*/
@@ -834,7 +818,7 @@ struct perf_event {
atomic_t mmap_count;
int mmap_locked;
struct user_struct *mmap_user;
- struct perf_buffer *buffer;
+ struct ring_buffer *rb;
/* poll related */
wait_queue_head_t waitq;
@@ -855,6 +839,7 @@ struct perf_event {
u64 id;
perf_overflow_handler_t overflow_handler;
+ void *overflow_handler_context;
#ifdef CONFIG_EVENT_TRACING
struct ftrace_event_call *tp_event;
@@ -919,8 +904,8 @@ struct perf_event_context {
u64 parent_gen;
u64 generation;
int pin_count;
- struct rcu_head rcu_head;
int nr_cgroups; /* cgroup events present */
+ struct rcu_head rcu_head;
};
/*
@@ -945,13 +930,11 @@ struct perf_cpu_context {
struct perf_output_handle {
struct perf_event *event;
- struct perf_buffer *buffer;
+ struct ring_buffer *rb;
unsigned long wakeup;
unsigned long size;
void *addr;
int page;
- int nmi;
- int sample;
};
#ifdef CONFIG_PERF_EVENTS
@@ -972,13 +955,15 @@ 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);
+ perf_overflow_handler_t callback,
+ void *context);
extern u64 perf_event_read_value(struct perf_event *event,
u64 *enabled, u64 *running);
@@ -1018,7 +1003,7 @@ extern void perf_prepare_sample(struct perf_event_header *header,
struct perf_event *event,
struct pt_regs *regs);
-extern int perf_event_overflow(struct perf_event *event, int nmi,
+extern int perf_event_overflow(struct perf_event *event,
struct perf_sample_data *data,
struct pt_regs *regs);
@@ -1037,7 +1022,7 @@ static inline int is_software_event(struct perf_event *event)
extern struct jump_label_key perf_swevent_enabled[PERF_COUNT_SW_MAX];
-extern void __perf_sw_event(u32, u64, int, struct pt_regs *, u64);
+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) { }
@@ -1059,7 +1044,7 @@ static inline void perf_fetch_caller_regs(struct pt_regs *regs)
}
static __always_inline void
-perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
+perf_sw_event(u32 event_id, u64 nr, struct pt_regs *regs, u64 addr)
{
struct pt_regs hot_regs;
@@ -1068,7 +1053,7 @@ perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
perf_fetch_caller_regs(&hot_regs);
regs = &hot_regs;
}
- __perf_sw_event(event_id, nr, nmi, regs, addr);
+ __perf_sw_event(event_id, nr, regs, addr);
}
}
@@ -1082,7 +1067,7 @@ static inline void perf_event_task_sched_in(struct task_struct *task)
static inline void perf_event_task_sched_out(struct task_struct *task, struct task_struct *next)
{
- perf_sw_event(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, 1, NULL, 0);
+ perf_sw_event(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, NULL, 0);
__perf_event_task_sched_out(task, next);
}
@@ -1143,8 +1128,7 @@ extern void perf_bp_event(struct perf_event *event, void *data);
#endif
extern int perf_output_begin(struct perf_output_handle *handle,
- struct perf_event *event, unsigned int size,
- int nmi, int sample);
+ struct perf_event *event, unsigned int size);
extern void perf_output_end(struct perf_output_handle *handle);
extern void perf_output_copy(struct perf_output_handle *handle,
const void *buf, unsigned int len);
@@ -1166,10 +1150,13 @@ 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, int nmi,
- struct pt_regs *regs, u64 addr) { }
+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) { }
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