1 files changed, 56 insertions, 3 deletions

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 9e7012689a84..43adbd7f0010 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -18,6 +18,10 @@
 #include <linux/ioctl.h>
 #include <asm/byteorder.h>
 
+#ifdef CONFIG_HAVE_HW_BREAKPOINT
+#include <asm/hw_breakpoint.h>
+#endif
+
 /*
  * User-space ABI bits:
  */
@@ -31,6 +35,7 @@ enum perf_type_id {
         PERF_TYPE_TRACEPOINT                    = 2,
         PERF_TYPE_HW_CACHE                      = 3,
         PERF_TYPE_RAW                           = 4,
+        PERF_TYPE_BREAKPOINT                    = 5,
 
         PERF_TYPE_MAX,                          /* non-ABI */
 };
@@ -102,6 +107,8 @@ enum perf_sw_ids {
         PERF_COUNT_SW_CPU_MIGRATIONS            = 4,
         PERF_COUNT_SW_PAGE_FAULTS_MIN           = 5,
         PERF_COUNT_SW_PAGE_FAULTS_MAJ           = 6,
+        PERF_COUNT_SW_ALIGNMENT_FAULTS          = 7,
+        PERF_COUNT_SW_EMULATION_FAULTS          = 8,
 
         PERF_COUNT_SW_MAX,                      /* non-ABI */
 };
@@ -207,6 +214,15 @@ struct perf_event_attr {
                 __u32           wakeup_events;    /* wakeup every n events */
                 __u32           wakeup_watermark; /* bytes before wakeup   */
         };
+
+        union {
+                struct { /* Hardware breakpoint info */
+                        __u64           bp_addr;
+                        __u32           bp_type;
+                        __u32           bp_len;
+                };
+        };
+
         __u32                   __reserved_2;
 
         __u64                   __reserved_3;
@@ -219,8 +235,9 @@ struct perf_event_attr {
 #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_PERIOD           _IOW('$', 4, __u64)
 #define PERF_EVENT_IOC_SET_OUTPUT       _IO ('$', 5)
+#define PERF_EVENT_IOC_SET_FILTER       _IOW('$', 6, char *)
 
 enum perf_event_ioc_flags {
         PERF_IOC_FLAG_GROUP             = 1U << 0,
@@ -475,6 +492,11 @@ struct hw_perf_event {
                         s64             remaining;
                         struct hrtimer  hrtimer;
                 };
+#ifdef CONFIG_HAVE_HW_BREAKPOINT
+                union { /* breakpoint */
+                        struct arch_hw_breakpoint       info;
+                };
+#endif
         };
         atomic64_t                      prev_count;
         u64                             sample_period;
@@ -543,6 +565,10 @@ struct perf_pending_entry {
         void (*func)(struct perf_pending_entry *);
 };
 
+typedef void (*perf_callback_t)(struct perf_event *, void *);
+
+struct perf_sample_data;
+
 /**
  * struct perf_event - performance event kernel representation:
  */
@@ -585,7 +611,7 @@ struct perf_event {
         u64                             tstamp_running;
         u64                             tstamp_stopped;
 
-        struct perf_event_attr  attr;
+        struct perf_event_attr          attr;
         struct hw_perf_event            hw;
 
         struct perf_event_context       *ctx;
@@ -633,7 +659,20 @@ struct perf_event {
 
         struct pid_namespace            *ns;
         u64                             id;
+
+        void (*overflow_handler)(struct perf_event *event,
+                        int nmi, struct perf_sample_data *data,
+                        struct pt_regs *regs);
+
+#ifdef CONFIG_EVENT_PROFILE
+        struct event_filter             *filter;
 #endif
+
+        perf_callback_t                 callback;
+
+        perf_callback_t                 event_callback;
+
+#endif /* CONFIG_PERF_EVENTS */
 };
 
 /**
@@ -706,7 +745,6 @@ struct perf_output_handle {
         int                             nmi;
         int                             sample;
         int                             locked;
-        unsigned long                   flags;
 };
 
 #ifdef CONFIG_PERF_EVENTS
@@ -738,6 +776,14 @@ extern int hw_perf_group_sched_in(struct perf_event *group_leader,
                struct perf_cpu_context *cpuctx,
                struct perf_event_context *ctx, int cpu);
 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,
+                                pid_t pid,
+                                perf_callback_t callback);
+extern u64 perf_event_read_value(struct perf_event *event,
+                                 u64 *enabled, u64 *running);
 
 struct perf_sample_data {
         u64                             type;
@@ -814,6 +860,7 @@ extern int sysctl_perf_event_sample_rate;
 extern void perf_event_init(void);
 extern void perf_tp_event(int event_id, u64 addr, u64 count,
                                  void *record, int entry_size);
+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 : \
@@ -827,6 +874,8 @@ extern int perf_output_begin(struct perf_output_handle *handle,
 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);
+extern int perf_swevent_get_recursion_context(void);
+extern void perf_swevent_put_recursion_context(int rctx);
 #else
 static inline void
 perf_event_task_sched_in(struct task_struct *task, int cpu)             { }
@@ -848,11 +897,15 @@ 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_bp_event(struct perf_event *event, void *data)             { }
 
 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)         { }
 
 #endif