Re: [PATCH v4 7/8] 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 <redacted>
Signed-off-by: Rob Herring <robh@kernel.org>
---
There's still an unresolved discussion about validating 'config3' with
the options laid out here[1].

v4:
 - Rebase on v6.2-rc1
v3:
 - No change
v2:
 - Drop tools/ side update

[1] https://lore.kernel.org/all/Y49ttrv6W5k3ZNYw@FVFF77S0Q05N.cambridge.arm.com/ (local)
---
 include/uapi/linux/perf_event.h | 3 +++
 1 file changed, 3 insertions(+)

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 */
 };