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Subject[PATCH 2/5] perf: arm_spe: Add new event packet bits
Date
The ARMv8.3-SPE extension adds some new bits to the event packet
fields.

Handle bits 11 (alignment), 17 and 18 (SVE predication) when decoding
the SPE buffer content.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
.../util/arm-spe-decoder/arm-spe-pkt-decoder.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)

diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
index b94001b756c7..e633bb5b8e65 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
@@ -346,6 +346,23 @@ int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf,
buf += ret;
blen -= ret;
}
+ if (payload & BIT(11)) {
+ ret = snprintf(buf, buf_len, " ALIGNMENT");
+ buf += ret;
+ blen -= ret;
+ }
+ }
+ if (idx > 2) {
+ if (payload & BIT(17)) {
+ ret = snprintf(buf, buf_len, " SVE-PARTIAL-PRED");
+ buf += ret;
+ blen -= ret;
+ }
+ if (payload & BIT(18)) {
+ ret = snprintf(buf, buf_len, " SVE-EMPTY-PRED");
+ buf += ret;
+ blen -= ret;
+ }
}
if (ret < 0)
return ret;
--
2.17.1
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