linux-kernel - [PATCH] perf: cs-etm: Update decoder code for OpenCSD version 1.4

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Message-Id: <20230120153706.20388-1-mike.leach@linaro.org>
Date:   Fri, 20 Jan 2023 15:37:06 +0000
From:   Mike Leach <mike.leach@...aro.org>
To:     linux-perf-users@...r.kernel.org
Cc:     acme@...nel.org, linux-arm-kernel@...ts.infradead.org,
        coresight@...ts.linaro.org, leo.yan@...aro.org,
        mathieu.poirier@...aro.org, suzuki.poulose@....com,
        linux-kernel@...r.kernel.org, peterz@...radead.org,
        mingo@...hat.com, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        namhyung@...nel.org, Mike Leach <mike.leach@...aro.org>
Subject: [PATCH] perf: cs-etm: Update decoder code for OpenCSD version 1.4

OpenCSD version 1.4 is released with support for FEAT_ITE.
This adds a new packet type, with associated output element ID in
the packet type enum - OCSD_GEN_TRC_ELEM_INSTRUMENTATION.

As we just ignore this packet in perf, add to the switch statement
to avoid the "enum not handled in switch error", but conditionally
so as not to break the perf build for older OpenCSD installations.

Signed-off-by: Mike Leach <mike.leach@...aro.org>
---
 tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
index fa3aa9c0fb2e..48e7121880a9 100644
--- a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
+++ b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
@@ -604,6 +604,9 @@ static ocsd_datapath_resp_t cs_etm_decoder__gen_trace_elem_printer(
 	case OCSD_GEN_TRC_ELEM_CUSTOM:
 	case OCSD_GEN_TRC_ELEM_SYNC_MARKER:
 	case OCSD_GEN_TRC_ELEM_MEMTRANS:
+#if (OCSD_VER_NUM >= 0x010400)
+	case OCSD_GEN_TRC_ELEM_INSTRUMENTATION:
+#endif
 	default:
 		break;
 	}
-- 
2.17.1