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-rw-r--r--tools/perf/util/mmap.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h
new file mode 100644
index 000000000..9d5f589f0
--- /dev/null
+++ b/tools/perf/util/mmap.h
@@ -0,0 +1,66 @@
+#ifndef __PERF_MMAP_H
+#define __PERF_MMAP_H 1
+
+#include <internal/mmap.h>
+#include <linux/compiler.h>
+#include <linux/refcount.h>
+#include <linux/types.h>
+#include <linux/ring_buffer.h>
+#include <stdbool.h>
+#include <pthread.h> // for cpu_set_t
+#ifdef HAVE_AIO_SUPPORT
+#include <aio.h>
+#endif
+#include "auxtrace.h"
+#include "event.h"
+
+struct aiocb;
+
+struct mmap_cpu_mask {
+ unsigned long *bits;
+ size_t nbits;
+};
+
+#define MMAP_CPU_MASK_BYTES(m) \
+ (BITS_TO_LONGS(((struct mmap_cpu_mask *)m)->nbits) * sizeof(unsigned long))
+
+/**
+ * struct mmap - perf's ring buffer mmap details
+ *
+ * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
+ */
+struct mmap {
+ struct perf_mmap core;
+ struct auxtrace_mmap auxtrace_mmap;
+#ifdef HAVE_AIO_SUPPORT
+ struct {
+ void **data;
+ struct aiocb *cblocks;
+ struct aiocb **aiocb;
+ int nr_cblocks;
+ } aio;
+#endif
+ struct mmap_cpu_mask affinity_mask;
+ void *data;
+ int comp_level;
+};
+
+struct mmap_params {
+ struct perf_mmap_param core;
+ int nr_cblocks, affinity, flush, comp_level;
+ struct auxtrace_mmap_params auxtrace_mp;
+};
+
+int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu);
+void mmap__munmap(struct mmap *map);
+
+union perf_event *perf_mmap__read_forward(struct mmap *map);
+
+int perf_mmap__push(struct mmap *md, void *to,
+ int push(struct mmap *map, void *to, void *buf, size_t size));
+
+size_t mmap__mmap_len(struct mmap *map);
+
+void mmap_cpu_mask__scnprintf(struct mmap_cpu_mask *mask, const char *tag);
+
+#endif /*__PERF_MMAP_H */