[PATCH v1 09/11] perf arm-spe: Store operation types in packet

[Leo Yan <leo.yan@linaro.org>]

This patch is to store operation types into packet structure, this can
be used by frontend to generate memory accessing info for samples.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
 tools/perf/util/arm-spe-decoder/arm-spe-decoder.c | 11 +++++++++++
 tools/perf/util/arm-spe-decoder/arm-spe-decoder.h |  6 ++++++
 2 files changed, 17 insertions(+)

diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
index 373dc2d1cf06..cba394784b0d 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
@@ -172,6 +172,17 @@ static int arm_spe_read_record(struct arm_spe_decoder *decoder)
 		case ARM_SPE_CONTEXT:
 			break;
 		case ARM_SPE_OP_TYPE:
+			/*
+			 * When operation type packet header's class equals 1,
+			 * the payload's least significant bit (LSB) indicates
+			 * the operation type: load/swap or store.
+			 */
+			if (idx == 1) {
+				if (payload & 0x1)
+					decoder->record.op = ARM_SPE_ST;
+				else
+					decoder->record.op = ARM_SPE_LD;
+			}
 			break;
 		case ARM_SPE_EVENTS:
 			if (payload & BIT(EV_L1D_REFILL))
diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
index 5acddfcffbd1..f23188282ef0 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
@@ -41,9 +41,15 @@ enum arm_spe_sample_type {
 	ARM_SPE_REMOTE_ACCESS	= 1 << 7,
 };
 
+enum arm_spe_op_type {
+	ARM_SPE_LD		= 1 << 0,
+	ARM_SPE_ST		= 1 << 1,
+};
+
 struct arm_spe_record {
 	enum arm_spe_sample_type type;
 	int err;
+	u32 op;
 	u64 from_ip;
 	u64 to_ip;
 	u64 timestamp;
-- 
2.17.1