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

[Leo Yan]

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....@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