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perf arm-spe: Only warn once for each unsupported address packet

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Unknown address packet indexes are not an error as the Arm architecture
can (and has with SPEv1.2) define new ones and implementation defined
ones are also allowed. The error message for every occurrence of the
packet is needlessly noisy as well. Change the message to print just
once for each unknown index.

Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20230127205546.667740-1-robh@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Rob Herring 2023-01-27 14:55:46 -06:00 committed by Arnaldo Carvalho de Melo
parent 1c24956542
commit 2889959489
1 changed files with 5 additions and 1 deletions
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6
tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
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@ -68,7 +68,11 @@ static u64 arm_spe_calc_ip(int index, u64 payload)
/* Clean highest byte */
payload = SPE_ADDR_PKT_ADDR_GET_BYTES_0_6(payload);
} else {
pr_err("unsupported address packet index: 0x%x\n", index);
static u32 seen_idx = 0;
if (!(seen_idx & BIT(index))) {
seen_idx |= BIT(index);
pr_warning("ignoring unsupported address packet index: 0x%x\n", index);
}
}
return payload;