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Message-Id: <20201106014136.14103-22-leo.yan@linaro.org>
Date: Fri, 6 Nov 2020 09:41:35 +0800
From: Leo Yan <leo.yan@...aro.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>,
Andre Przywara <andre.przywara@....com>,
Dave Martin <Dave.Martin@....com>,
James Clark <james.clark@....com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...hat.com>,
Namhyung Kim <namhyung@...nel.org>,
Al Grant <Al.Grant@....com>, Wei Li <liwei391@...wei.com>,
linux-kernel@...r.kernel.org
Cc: Leo Yan <leo.yan@...aro.org>
Subject: [PATCH v7 21/22] perf arm_spe: Decode memory tagging properties
From: Andre Przywara <andre.przywara@....com>
When SPE records a physical address, it can additionally tag the event
with information from the Memory Tagging architecture extension.
Decode the two additional fields in the SPE event payload.
[leoy: Refined patch to use predefined macros]
Signed-off-by: Andre Przywara <andre.przywara@....com>
Signed-off-by: Leo Yan <leo.yan@...aro.org>
Reviewed-by: Dave Martin <Dave.Martin@....com>
---
tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c | 6 +++++-
tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h | 2 ++
2 files changed, 7 insertions(+), 1 deletion(-)
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 ec962a9bff78..4744048478ca 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
@@ -385,6 +385,7 @@ static int arm_spe_pkt_desc_addr(const struct arm_spe_pkt *packet,
char *buf, size_t buf_len)
{
int ns, el, idx = packet->index;
+ int ch, pat;
u64 payload = packet->payload;
int err = 0;
@@ -404,9 +405,12 @@ static int arm_spe_pkt_desc_addr(const struct arm_spe_pkt *packet,
break;
case SPE_ADDR_PKT_HDR_INDEX_DATA_PHYS:
ns = !!SPE_ADDR_PKT_GET_NS(payload);
+ ch = !!SPE_ADDR_PKT_GET_CH(payload);
+ pat = SPE_ADDR_PKT_GET_PAT(payload);
payload = SPE_ADDR_PKT_ADDR_GET_BYTES_0_6(payload);
arm_spe_pkt_snprintf(&err, &buf, &buf_len,
- "PA 0x%llx ns=%d", payload, ns);
+ "PA 0x%llx ns=%d ch=%d pat=%x",
+ payload, ns, ch, pat);
break;
default:
/* Unknown index */
diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
index 7032fc141ad4..1ad14885c2a1 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
@@ -73,6 +73,8 @@ struct arm_spe_pkt {
#define SPE_ADDR_PKT_GET_NS(v) (((v) & BIT_ULL(63)) >> 63)
#define SPE_ADDR_PKT_GET_EL(v) (((v) & GENMASK_ULL(62, 61)) >> 61)
+#define SPE_ADDR_PKT_GET_CH(v) (((v) & BIT_ULL(62)) >> 62)
+#define SPE_ADDR_PKT_GET_PAT(v) (((v) & GENMASK_ULL(59, 56)) >> 56)
#define SPE_ADDR_PKT_EL0 0
#define SPE_ADDR_PKT_EL1 1
--
2.17.1
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