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Subject[PATCH v3 10/20] perf arm-spe: Refactor context packet handling
Date
Minor refactoring to use macro for index mask.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
---
tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c | 2 +-
tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h | 3 +++
2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
index 156f98d6b8b2..1fc07c693640 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.c
@@ -136,7 +136,7 @@ static int arm_spe_get_context(const unsigned char *buf, size_t len,
struct arm_spe_pkt *packet)
{
packet->type = ARM_SPE_CONTEXT;
- packet->index = buf[0] & 0x3;
+ packet->index = SPE_CTX_PKT_HDR_INDEX(buf[0]);
return arm_spe_get_payload(buf, len, 0, packet);
}

diff --git a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
index 4111550d2bde..8808f2d0b6e4 100644
--- a/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
+++ b/tools/perf/util/arm-spe-decoder/arm-spe-pkt-decoder.h
@@ -81,6 +81,9 @@ struct arm_spe_pkt {
#define SPE_ADDR_PKT_EL2 2
#define SPE_ADDR_PKT_EL3 3

+/* Context packet header */
+#define SPE_CTX_PKT_HDR_INDEX(h) ((h) & GENMASK_ULL(1, 0))
+
const char *arm_spe_pkt_name(enum arm_spe_pkt_type);

int arm_spe_get_packet(const unsigned char *buf, size_t len,
--
2.17.1
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