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authorRob Herring <robh@kernel.org>2023-01-09 13:26:23 -0600
committerWill Deacon <will@kernel.org>2023-02-07 11:52:00 +0000
commit09519ec3b19e4144b5f6e269c54fbb9c294a9fcb (patch)
tree3139f2c6c779ba4f0752c7395e64cc2983fd2d0b
parent7f49b037397631dc5ec8f6eed67d218edf094fa2 (diff)
downloadlwn-09519ec3b19e4144b5f6e269c54fbb9c294a9fcb.tar.gz
lwn-09519ec3b19e4144b5f6e269c54fbb9c294a9fcb.zip
perf: Add perf_event_attr::config3
Arm SPEv1.2 adds another 64-bits of event filtering control. As the existing perf_event_attr::configN fields are all used up for SPE PMU, an additional field is needed. Add a new 'config3' field. Tested-by: James Clark <james.clark@arm.com> Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20220825-arm-spe-v8-7-v4-7-327f860daf28@kernel.org Signed-off-by: Will Deacon <will@kernel.org>
-rw-r--r--include/uapi/linux/perf_event.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index ccb7f5dad59b..37675437b768 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -374,6 +374,7 @@ enum perf_event_read_format {
#define PERF_ATTR_SIZE_VER5 112 /* add: aux_watermark */
#define PERF_ATTR_SIZE_VER6 120 /* add: aux_sample_size */
#define PERF_ATTR_SIZE_VER7 128 /* add: sig_data */
+#define PERF_ATTR_SIZE_VER8 136 /* add: config3 */
/*
* Hardware event_id to monitor via a performance monitoring event:
@@ -515,6 +516,8 @@ struct perf_event_attr {
* truncated accordingly on 32 bit architectures.
*/
__u64 sig_data;
+
+ __u64 config3; /* extension of config2 */
};
/*