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authorStephane Eranian <eranian@google.com>2012-02-09 23:21:05 +0100
committerIngo Molnar <mingo@elte.hu>2012-03-09 08:26:05 +0100
commitcb5d76999029ae7a517cb07dfa732c1b5a934fc2 (patch)
tree70a2853f05ba9fab833fd00b7d7f5b6fabfddbbe
parentb50311dc2ac1c04ad19163c2359910b25e16caf6 (diff)
downloadop-kernel-dev-cb5d76999029ae7a517cb07dfa732c1b5a934fc2.zip
op-kernel-dev-cb5d76999029ae7a517cb07dfa732c1b5a934fc2.tar.gz
perf: Add ABI reference sizes
This patch adds reference sizes for revision 1 and 2 of the perf_event ABI, i.e., the size of the perf_event_attr struct. With Rev1: config2 was added = +8 bytes With Rev2: branch_sample_type was added = +8 bytes Adds the definition for Rev1, Rev2. This is useful for tools trying to decode the revision numbers based on the size of the struct. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: peterz@infradead.org Cc: acme@redhat.com Cc: robert.richter@amd.com Cc: ming.m.lin@intel.com Cc: andi@firstfloor.org Cc: asharma@fb.com Cc: ravitillo@lbl.gov Cc: vweaver1@eecs.utk.edu Cc: khandual@linux.vnet.ibm.com Cc: dsahern@gmail.com Link: http://lkml.kernel.org/r/1328826068-11713-16-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--include/linux/perf_event.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index fbbf5e5..bd9f55a 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -192,6 +192,8 @@ enum perf_event_read_format {
};
#define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */
+#define PERF_ATTR_SIZE_VER1 72 /* add: config2 */
+#define PERF_ATTR_SIZE_VER2 80 /* add: branch_sample_type */
/*
* Hardware event_id to monitor via a performance monitoring event:
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