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-rw-r--r--tools/perf/perf.h26
-rw-r--r--tools/perf/util/evlist.c4
-rw-r--r--tools/perf/util/evlist.h29
3 files changed, 30 insertions, 29 deletions
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 8f3bf388e414..c2206c87fc9f 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -103,32 +103,6 @@
#include "util/types.h"
#include <stdbool.h>
-struct perf_mmap {
- void *base;
- int mask;
- unsigned int prev;
-};
-
-static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm)
-{
- struct perf_event_mmap_page *pc = mm->base;
- int head = pc->data_head;
- rmb();
- return head;
-}
-
-static inline void perf_mmap__write_tail(struct perf_mmap *md,
- unsigned long tail)
-{
- struct perf_event_mmap_page *pc = md->base;
-
- /*
- * ensure all reads are done before we write the tail out.
- */
- /* mb(); */
- pc->data_tail = tail;
-}
-
/*
* prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all
* counters in the current task.
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index ecf123e080bb..bc4ad7977438 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -375,7 +375,7 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx)
if ((old & md->mask) + size != ((old + size) & md->mask)) {
unsigned int offset = old;
unsigned int len = min(sizeof(*event), size), cpy;
- void *dst = &evlist->event_copy;
+ void *dst = &md->event_copy;
do {
cpy = min(md->mask + 1 - (offset & md->mask), len);
@@ -385,7 +385,7 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx)
len -= cpy;
} while (len);
- event = &evlist->event_copy;
+ event = &md->event_copy;
}
old += size;
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 73579a25a93e..2dd07bd60b4f 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -17,6 +17,13 @@ struct perf_record_opts;
#define PERF_EVLIST__HLIST_BITS 8
#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
+struct perf_mmap {
+ void *base;
+ int mask;
+ unsigned int prev;
+ union perf_event event_copy;
+};
+
struct perf_evlist {
struct list_head entries;
struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
@@ -30,7 +37,6 @@ struct perf_evlist {
pid_t pid;
} workload;
bool overwrite;
- union perf_event event_copy;
struct perf_mmap *mmap;
struct pollfd *pollfd;
struct thread_map *threads;
@@ -136,4 +142,25 @@ static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
}
size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
+
+static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm)
+{
+ struct perf_event_mmap_page *pc = mm->base;
+ int head = pc->data_head;
+ rmb();
+ return head;
+}
+
+static inline void perf_mmap__write_tail(struct perf_mmap *md,
+ unsigned long tail)
+{
+ struct perf_event_mmap_page *pc = md->base;
+
+ /*
+ * ensure all reads are done before we write the tail out.
+ */
+ /* mb(); */
+ pc->data_tail = tail;
+}
+
#endif /* __PERF_EVLIST_H */