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From: Stephane Eranian <eranian@google.com>
To: linux-kernel@vger.kernel.org
Cc: peterz@infradead.org, mingo@elte.hu, acme@redhat.com,
	robert.richter@amd.com, ming.m.lin@intel.com,
	andi@firstfloor.org, asharma@fb.com, ravitillo@lbl.gov,
	vweaver1@eecs.utk.edu, khandual@linux.vnet.ibm.com,
	dsahern@gmail.com
Subject: [PATCH v4 15/18] perf: add ABI reference sizes
Date: Fri, 27 Jan 2012 21:56:15 +0100	[thread overview]
Message-ID: <1327697778-18515-16-git-send-email-eranian@google.com> (raw)
In-Reply-To: <1327697778-18515-1-git-send-email-eranian@google.com>

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>
---
 include/linux/perf_event.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 6d9d712..91452ed 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -195,6 +195,8 @@ 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:
-- 
1.7.1


  parent reply	other threads:[~2012-01-27 20:59 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-27 20:56 [PATCH v4 00/18] perf: add support for sampling taken branches Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 01/18] perf: add generic taken branch sampling support Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 02/18] perf: add Intel LBR MSR definitions Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 03/18] perf: add Intel X86 LBR sharing logic Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 04/18] perf: sync branch stack sampling with X86 precise_sampling Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 05/18] perf: add LBR mappings for PERF_SAMPLE_BRANCH filters Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 06/18] perf: disable LBR support for older Intel Atom processors Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 07/18] perf: implement PERF_SAMPLE_BRANCH for Intel X86 Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 08/18] perf: add LBR software filter support " Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 09/18] perf: disable PERF_SAMPLE_BRANCH_* when not supported Stephane Eranian
2012-01-30  3:57   ` Anshuman Khandual
2012-01-27 20:56 ` [PATCH v4 10/18] perf: add hook to flush branch_stack on context switch Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 11/18] perf: add code to support PERF_SAMPLE_BRANCH_STACK Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 12/18] perf: add support for sampling taken branch to perf record Stephane Eranian
2012-01-31  9:47   ` Anshuman Khandual
2012-01-31 10:31     ` Stephane Eranian
2012-01-31 15:44       ` Anshuman Khandual
2012-01-31 15:48         ` Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 13/18] perf: add support for taken branch sampling to perf report Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 14/18] perf: fix endianness detection in perf.data Stephane Eranian
2012-01-30  5:55   ` Anshuman Khandual
2012-01-27 20:56 ` Stephane Eranian [this message]
2012-01-27 20:56 ` [PATCH v4 16/18] perf: enable reading of perf.data files from different ABI rev Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 17/18] perf: fix bug print_event_desc() Stephane Eranian
2012-01-27 20:56 ` [PATCH v4 18/18] perf: make perf able to read file from older ABIs Stephane Eranian
2012-01-31  8:54   ` Anshuman Khandual
2012-01-30  4:16 ` [PATCH v4 00/18] perf: add support for sampling taken branches Anshuman Khandual
2012-01-30 10:15   ` Stephane Eranian
2012-02-01  8:41 ` Anshuman Khandual
2012-02-02 13:23   ` Stephane Eranian

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