Merge branch 'perf/hw-branch-sampling' into perf/core

Merge reason: The 'perf record -b' hardware branch sampling feature is ready for upstream.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 18 insertions, 0 deletions

diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index f0227e93665d..eec392e48067 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -179,6 +179,23 @@ struct ip_callchain {
 	u64 ips[0];
 };
 
+struct branch_flags {
+	u64 mispred:1;
+	u64 predicted:1;
+	u64 reserved:62;
+};
+
+struct branch_entry {
+	u64				from;
+	u64				to;
+	struct branch_flags flags;
+};
+
+struct branch_stack {
+	u64				nr;
+	struct branch_entry	entries[0];
+};
+
 extern bool perf_host, perf_guest;
 extern const char perf_version_string[];
 
@@ -205,6 +222,7 @@ struct perf_record_opts {
 	unsigned int freq;
 	unsigned int mmap_pages;
 	unsigned int user_freq;
+	int	     branch_stack;
 	u64	     default_interval;
 	u64	     user_interval;
 	const char   *cpu_list;