1 files changed, 115 insertions, 6 deletions

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 2b621982938d..61992cf2e977 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -53,6 +53,7 @@ struct perf_guest_info_callbacks {
 #include <linux/sysfs.h>
 #include <linux/perf_regs.h>
 #include <linux/workqueue.h>
+#include <linux/cgroup.h>
 #include <asm/local.h>
 
 struct perf_callchain_entry {
@@ -118,10 +119,19 @@ struct hw_perf_event {
                         struct hrtimer  hrtimer;
                 };
                 struct { /* tracepoint */
-                        struct task_struct      *tp_target;
                         /* for tp_event->class */
                         struct list_head        tp_list;
                 };
+                struct { /* intel_cqm */
+                        int                     cqm_state;
+                        int                     cqm_rmid;
+                        struct list_head        cqm_events_entry;
+                        struct list_head        cqm_groups_entry;
+                        struct list_head        cqm_group_entry;
+                };
+                struct { /* itrace */
+                        int                     itrace_started;
+                };
 #ifdef CONFIG_HAVE_HW_BREAKPOINT
                 struct { /* breakpoint */
                         /*
@@ -129,12 +139,12 @@ struct hw_perf_event {
                          * 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
         };
+        struct task_struct              *target;
         int                             state;
         local64_t                       prev_count;
         u64                             sample_period;
@@ -166,6 +176,11 @@ struct perf_event;
  * pmu::capabilities flags
  */
 #define PERF_PMU_CAP_NO_INTERRUPT               0x01
+#define PERF_PMU_CAP_NO_NMI                     0x02
+#define PERF_PMU_CAP_AUX_NO_SG                  0x04
+#define PERF_PMU_CAP_AUX_SW_DOUBLEBUF           0x08
+#define PERF_PMU_CAP_EXCLUSIVE                  0x10
+#define PERF_PMU_CAP_ITRACE                     0x20
 
 /**
  * struct pmu - generic performance monitoring unit
@@ -186,6 +201,7 @@ struct pmu {
 
         int * __percpu                  pmu_disable_count;
         struct perf_cpu_context * __percpu pmu_cpu_context;
+        atomic_t                        exclusive_cnt; /* < 0: cpu; > 0: tsk */
         int                             task_ctx_nr;
         int                             hrtimer_interval_ms;
 
@@ -262,9 +278,32 @@ struct pmu {
         int (*event_idx)                (struct perf_event *event); /*optional */
 
         /*
-         * flush branch stack on context-switches (needed in cpu-wide mode)
+         * context-switches callback
+         */
+        void (*sched_task)              (struct perf_event_context *ctx,
+                                        bool sched_in);
+        /*
+         * PMU specific data size
+         */
+        size_t                          task_ctx_size;
+
+
+        /*
+         * Return the count value for a counter.
+         */
+        u64 (*count)                    (struct perf_event *event); /*optional*/
+
+        /*
+         * Set up pmu-private data structures for an AUX area
          */
-        void (*flush_branch_stack)      (void);
+        void *(*setup_aux)              (int cpu, void **pages,
+                                         int nr_pages, bool overwrite);
+                                        /* optional */
+
+        /*
+         * Free pmu-private AUX data structures
+         */
+        void (*free_aux)                (void *aux); /* optional */
 };
 
 /**
@@ -300,6 +339,7 @@ struct swevent_hlist {
 #define PERF_ATTACH_CONTEXT     0x01
 #define PERF_ATTACH_GROUP       0x02
 #define PERF_ATTACH_TASK        0x04
+#define PERF_ATTACH_TASK_DATA   0x08
 
 struct perf_cgroup;
 struct ring_buffer;
@@ -438,6 +478,7 @@ struct perf_event {
         struct pid_namespace            *ns;
         u64                             id;
 
+        u64                             (*clock)(void);
         perf_overflow_handler_t         overflow_handler;
         void                            *overflow_handler_context;
 
@@ -504,7 +545,7 @@ struct perf_event_context {
         u64                             generation;
         int                             pin_count;
         int                             nr_cgroups;      /* cgroup evts */
-        int                             nr_branch_stack; /* branch_stack evt */
+        void                            *task_ctx_data; /* pmu specific data */
         struct rcu_head                 rcu_head;
 
         struct delayed_work             orphans_remove;
@@ -536,12 +577,52 @@ struct perf_output_handle {
         struct ring_buffer              *rb;
         unsigned long                   wakeup;
         unsigned long                   size;
-        void                            *addr;
+        union {
+                void                    *addr;
+                unsigned long           head;
+        };
         int                             page;
 };
 
+#ifdef CONFIG_CGROUP_PERF
+
+/*
+ * perf_cgroup_info keeps track of time_enabled for a cgroup.
+ * This is a per-cpu dynamically allocated data structure.
+ */
+struct perf_cgroup_info {
+        u64                             time;
+        u64                             timestamp;
+};
+
+struct perf_cgroup {
+        struct cgroup_subsys_state      css;
+        struct perf_cgroup_info __percpu *info;
+};
+
+/*
+ * Must ensure cgroup is pinned (css_get) before calling
+ * this function. In other words, we cannot call this function
+ * if there is no cgroup event for the current CPU context.
+ */
+static inline struct perf_cgroup *
+perf_cgroup_from_task(struct task_struct *task)
+{
+        return container_of(task_css(task, perf_event_cgrp_id),
+                            struct perf_cgroup, css);
+}
+#endif /* CONFIG_CGROUP_PERF */
+
 #ifdef CONFIG_PERF_EVENTS
 
+extern void *perf_aux_output_begin(struct perf_output_handle *handle,
+                                   struct perf_event *event);
+extern void perf_aux_output_end(struct perf_output_handle *handle,
+                                unsigned long size, bool truncated);
+extern int perf_aux_output_skip(struct perf_output_handle *handle,
+                                unsigned long size);
+extern void *perf_get_aux(struct perf_output_handle *handle);
+
 extern int perf_pmu_register(struct pmu *pmu, const char *name, int type);
 extern void perf_pmu_unregister(struct pmu *pmu);