perf evsel: Introduce perf_evsel__is_group_event() helper

[karo-tx-linux.git] / tools / perf / util / evsel.h

diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index c68d1b82e843a88cc33e82a508b05bd021996eeb..bf758e53c9292fe6eeddb64074836007f55b5752 100644 (file)
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -9,6 +9,7 @@
 #include "xyarray.h"
 #include "cgroup.h"
 #include "hist.h"
+#include "symbol.h"
  
 struct perf_counts_values {
        union {
@@ -53,6 +54,7 @@ struct perf_evsel {
        struct xyarray          *sample_id;
        u64                     *id;
        struct perf_counts      *counts;
+       struct perf_counts      *prev_raw_counts;
        int                     idx;
        u32                     ids;
        struct hists            hists;
@@ -73,10 +75,13 @@ struct perf_evsel {
        bool                    needs_swap;
        /* parse modifier helper */
        int                     exclude_GH;
+       int                     nr_members;
        struct perf_evsel       *leader;
        char                    *group_name;
 };
 
+#define hists_to_evsel(h) container_of(h, struct perf_evsel, hists)
+
 struct cpu_map;
 struct thread_map;
 struct perf_evlist;
@@ -110,12 +115,15 @@ extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
 int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
                                            char *bf, size_t size);
 const char *perf_evsel__name(struct perf_evsel *evsel);
+const char *perf_evsel__group_name(struct perf_evsel *evsel);
+int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
 
 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
 void perf_evsel__free_fd(struct perf_evsel *evsel);
 void perf_evsel__free_id(struct perf_evsel *evsel);
+void perf_evsel__free_counts(struct perf_evsel *evsel);
 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
 
 void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
@@ -239,14 +247,38 @@ static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
        return list_entry(evsel->node.next, struct perf_evsel, node);
 }
 
+/**
+ * perf_evsel__is_group_leader - Return whether given evsel is a leader event
+ *
+ * @evsel - evsel selector to be tested
+ *
+ * Return %true if @evsel is a group leader or a stand-alone event
+ */
 static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel)
 {
        return evsel->leader == evsel;
 }
 
+/**
+ * perf_evsel__is_group_event - Return whether given evsel is a group event
+ *
+ * @evsel - evsel selector to be tested
+ *
+ * Return %true iff event group view is enabled and @evsel is a actual group
+ * leader which has other members in the group
+ */
+static inline bool perf_evsel__is_group_event(struct perf_evsel *evsel)
+{
+       if (!symbol_conf.event_group)
+               return false;
+
+       return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1;
+}
+
 struct perf_attr_details {
        bool freq;
        bool verbose;
+       bool event_group;
 };
 
 int perf_evsel__fprintf(struct perf_evsel *evsel,
@@ -257,4 +289,15 @@ bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
 int perf_evsel__open_strerror(struct perf_evsel *evsel,
                              struct perf_target *target,
                              int err, char *msg, size_t size);
+
+static inline int perf_evsel__group_idx(struct perf_evsel *evsel)
+{
+       return evsel->idx - evsel->leader->idx;
+}
+
+#define for_each_group_member(_evsel, _leader)                                         \
+for ((_evsel) = list_entry((_leader)->node.next, struct perf_evsel, node);     \
+     (_evsel) && (_evsel)->leader == (_leader);                                        \
+     (_evsel) = list_entry((_evsel)->node.next, struct perf_evsel, node))
+
 #endif /* __PERF_EVSEL_H */