[PATCH v8 13/22] perf arm-spe: Add new function arm_spe_pkt_desc_counter()

From: Leo Yan
Date: Wed Nov 11 2020 - 02:21:46 EST


This patch moves out the counter packet parsing code from
arm_spe_pkt_desc() to the new function arm_spe_pkt_desc_counter().

Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx>
Reviewed-by: Andre Przywara <andre.przywara@xxxxxxx>
---
.../arm-spe-decoder/arm-spe-pkt-decoder.c | 43 ++++++++++++-------
1 file changed, 28 insertions(+), 15 deletions(-)

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 7b0f654e5cd6..e8c9da1d4280 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
@@ -322,6 +322,33 @@ static int arm_spe_pkt_desc_addr(const struct arm_spe_pkt *packet,
return err;
}

+static int arm_spe_pkt_desc_counter(const struct arm_spe_pkt *packet,
+ char *buf, size_t buf_len)
+{
+ u64 payload = packet->payload;
+ const char *name = arm_spe_pkt_name(packet->type);
+ int err = 0;
+
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, "%s %d ", name,
+ (unsigned short)payload);
+
+ switch (packet->index) {
+ case 0:
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, "TOT");
+ break;
+ case 1:
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, "ISSUE");
+ break;
+ case 2:
+ arm_spe_pkt_snprintf(&err, &buf, &buf_len, "XLAT");
+ break;
+ default:
+ break;
+ }
+
+ return err;
+}
+
int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf,
size_t buf_len)
{
@@ -414,21 +441,7 @@ int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf,
name, (unsigned long)payload, idx + 1);
break;
case ARM_SPE_COUNTER:
- arm_spe_pkt_snprintf(&err, &buf, &blen, "%s %d ", name,
- (unsigned short)payload);
- switch (idx) {
- case 0:
- arm_spe_pkt_snprintf(&err, &buf, &blen, "TOT");
- break;
- case 1:
- arm_spe_pkt_snprintf(&err, &buf, &blen, "ISSUE");
- break;
- case 2:
- arm_spe_pkt_snprintf(&err, &buf, &blen, "XLAT");
- break;
- default:
- break;
- }
+ err = arm_spe_pkt_desc_counter(packet, buf, buf_len);
break;
default:
/* Unknown index */
--
2.17.1