linux-kernel - [PATCH v2 1/2] perf arm-spe: Prepare for adding data source packet implementations for other cores

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Message-ID: <20241031213533.11148-2-ilkka@os.amperecomputing.com>
Date: Thu, 31 Oct 2024 21:35:32 +0000
From: Ilkka Koskinen <ilkka@...amperecomputing.com>
To: John Garry <john.g.garry@...cle.com>,
	Will Deacon <will@...nel.org>,
	James Clark <james.clark@...aro.org>,
	Mike Leach <mike.leach@...aro.org>,
	Leo Yan <leo.yan@...ux.dev>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	"Liang, Kan" <kan.liang@...ux.intel.com>,
	Graham Woodward <graham.woodward@....com>
Cc: Ilkka Koskinen <ilkka@...amperecomputing.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] perf arm-spe: Prepare for adding data source packet implementations for other cores

Split Data Source Packet handling to prepare adding support for
other implementations.

Signed-off-by: Ilkka Koskinen <ilkka@...amperecomputing.com>
---
 tools/perf/util/arm-spe.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index dbf13f47879c..9586416be30a 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c
@@ -555,7 +555,8 @@ static void arm_spe__synth_memory_level(const struct arm_spe_record *record,
 		data_src->mem_lvl |= PERF_MEM_LVL_REM_CCE1;
 }
 
-static bool arm_spe__is_common_ds_encoding(struct arm_spe_queue *speq)
+static bool arm_spe__is_ds_encoding_supported(struct arm_spe_queue *speq,
+					      const struct midr_range *cpus)
 {
 	struct arm_spe *spe = speq->spe;
 	bool is_in_cpu_list;
@@ -592,7 +593,7 @@ static bool arm_spe__is_common_ds_encoding(struct arm_spe_queue *speq)
 		midr = metadata[ARM_SPE_CPU_MIDR];
 	}
 
-	is_in_cpu_list = is_midr_in_range_list(midr, common_ds_encoding_cpus);
+	is_in_cpu_list = is_midr_in_range_list(midr, cpus);
 	if (is_in_cpu_list)
 		return true;
 	else
@@ -603,7 +604,8 @@ static u64 arm_spe__synth_data_source(struct arm_spe_queue *speq,
 				      const struct arm_spe_record *record)
 {
 	union perf_mem_data_src	data_src = { .mem_op = PERF_MEM_OP_NA };
-	bool is_common = arm_spe__is_common_ds_encoding(speq);
+	bool is_common = arm_spe__is_ds_encoding_supported(speq,
+						common_ds_encoding_cpus);
 
 	if (record->op & ARM_SPE_OP_LD)
 		data_src.mem_op = PERF_MEM_OP_LOAD;
-- 
2.47.0