From: Leo Yan <leo.yan@linaro.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Andre Przywara <andre.przywara@arm.com>,
Dave Martin <Dave.Martin@arm.com>, Wei Li <liwei391@huawei.com>,
James Clark <james.clark@arm.com>, Al Grant <Al.Grant@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Subject: [PATCH v5 17/21] perf arm-spe: Add new function arm_spe_pkt_desc_op_type()
Date: Thu, 29 Oct 2020 15:19:23 +0800 [thread overview]
Message-ID: <20201029071927.9308-18-leo.yan@linaro.org> (raw)
In-Reply-To: <20201029071927.9308-1-leo.yan@linaro.org>
The operation type packet is complex and contains subclass; the parsing
flow causes deep indentation; for more readable, this patch introduces
a new function arm_spe_pkt_desc_op_type() which is used for operation
type parsing.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
---
.../arm-spe-decoder/arm-spe-pkt-decoder.c | 78 +++++++++++--------
1 file changed, 44 insertions(+), 34 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 b42ba64274c1..e51b103d9973 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
@@ -304,6 +304,49 @@ static int arm_spe_pkt_desc_event(const struct arm_spe_pkt *packet,
return err ?: (int)(buf_len - blen);
}
+static int arm_spe_pkt_desc_op_type(const struct arm_spe_pkt *packet,
+ char *buf, size_t buf_len)
+{
+ u64 payload = packet->payload;
+ size_t blen = buf_len;
+ int err = 0;
+
+ switch (packet->index) {
+ case 0:
+ return arm_spe_pkt_snprintf(&err, &buf, &blen,
+ payload & 0x1 ? "COND-SELECT" : "INSN-OTHER");
+ case 1:
+ arm_spe_pkt_snprintf(&err, &buf, &blen,
+ payload & 0x1 ? "ST" : "LD");
+
+ if (payload & 0x2) {
+ if (payload & 0x4)
+ arm_spe_pkt_snprintf(&err, &buf, &blen, " AT");
+ if (payload & 0x8)
+ arm_spe_pkt_snprintf(&err, &buf, &blen, " EXCL");
+ if (payload & 0x10)
+ arm_spe_pkt_snprintf(&err, &buf, &blen, " AR");
+ } else if (payload & 0x4) {
+ arm_spe_pkt_snprintf(&err, &buf, &blen, " SIMD-FP");
+ }
+
+ return err ?: (int)(buf_len - blen);
+
+ case 2:
+ arm_spe_pkt_snprintf(&err, &buf, &blen, "B");
+
+ if (payload & 0x1)
+ arm_spe_pkt_snprintf(&err, &buf, &blen, " COND");
+ if (payload & 0x2)
+ arm_spe_pkt_snprintf(&err, &buf, &blen, " IND");
+
+ return err ?: (int)(buf_len - blen);
+
+ default:
+ return 0;
+ }
+}
+
static int arm_spe_pkt_desc_addr(const struct arm_spe_pkt *packet,
char *buf, size_t buf_len)
{
@@ -378,40 +421,7 @@ int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf,
case ARM_SPE_EVENTS:
return arm_spe_pkt_desc_event(packet, buf, buf_len);
case ARM_SPE_OP_TYPE:
- switch (idx) {
- case 0:
- return arm_spe_pkt_snprintf(&err, &buf, &blen,
- payload & 0x1 ? "COND-SELECT" : "INSN-OTHER");
- case 1:
- arm_spe_pkt_snprintf(&err, &buf, &blen,
- payload & 0x1 ? "ST" : "LD");
-
- if (payload & 0x2) {
- if (payload & 0x4)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " AT");
- if (payload & 0x8)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " EXCL");
- if (payload & 0x10)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " AR");
- } else if (payload & 0x4) {
- arm_spe_pkt_snprintf(&err, &buf, &blen, " SIMD-FP");
- }
-
- return err ?: (int)(buf_len - blen);
-
- case 2:
- arm_spe_pkt_snprintf(&err, &buf, &blen, "B");
-
- if (payload & 0x1)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " COND");
- if (payload & 0x2)
- arm_spe_pkt_snprintf(&err, &buf, &blen, " IND");
-
- return err ?: (int)(buf_len - blen);
-
- default:
- return 0;
- }
+ return arm_spe_pkt_desc_op_type(packet, buf, buf_len);
case ARM_SPE_DATA_SOURCE:
case ARM_SPE_TIMESTAMP:
return arm_spe_pkt_snprintf(&err, &buf, &blen, "%s %lld", name, payload);
--
2.17.1
next prev parent reply other threads:[~2020-10-29 7:21 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-29 7:19 [PATCH v5 00/21] perf arm-spe: Refactor decoding & dumping flow Leo Yan
2020-10-29 7:19 ` [PATCH v5 01/21] perf arm-spe: Include bitops.h for BIT() macro Leo Yan
2020-10-29 7:19 ` [PATCH v5 02/21] perf arm-spe: Fix a typo in comment Leo Yan
2020-10-29 7:19 ` [PATCH v5 03/21] perf arm-spe: Refactor payload size calculation Leo Yan
2020-10-29 7:19 ` [PATCH v5 04/21] perf arm-spe: Refactor arm_spe_get_events() Leo Yan
2020-10-29 7:19 ` [PATCH v5 05/21] perf arm-spe: Fix packet length handling Leo Yan
2020-10-29 7:19 ` [PATCH v5 06/21] perf arm-spe: Refactor printing string to buffer Leo Yan
2020-10-29 10:23 ` André Przywara
2020-10-29 10:51 ` Leo Yan
2020-10-29 10:54 ` André Przywara
2020-10-29 11:06 ` Leo Yan
2020-10-29 7:19 ` [PATCH v5 07/21] perf arm-spe: Refactor packet header parsing Leo Yan
2020-10-29 7:19 ` [PATCH v5 08/21] perf arm-spe: Add new function arm_spe_pkt_desc_addr() Leo Yan
2020-10-29 7:19 ` [PATCH v5 09/21] perf arm-spe: Refactor address packet handling Leo Yan
2020-10-29 7:19 ` [PATCH v5 10/21] perf arm_spe: Fixup top byte for data virtual address Leo Yan
2020-10-29 12:01 ` Andre Przywara
2020-10-29 7:19 ` [PATCH v5 11/21] perf arm-spe: Refactor context packet handling Leo Yan
2020-10-29 7:19 ` [PATCH v5 12/21] perf arm-spe: Add new function arm_spe_pkt_desc_counter() Leo Yan
2020-10-29 7:19 ` [PATCH v5 13/21] perf arm-spe: Refactor counter packet handling Leo Yan
2020-10-29 7:19 ` [PATCH v5 14/21] perf arm-spe: Add new function arm_spe_pkt_desc_event() Leo Yan
2020-10-29 7:19 ` [PATCH v5 15/21] perf arm-spe: Refactor event type handling Leo Yan
2020-10-29 7:19 ` [PATCH v5 16/21] perf arm-spe: Remove size condition checking for events Leo Yan
2020-10-29 7:19 ` Leo Yan [this message]
2020-10-29 7:19 ` [PATCH v5 18/21] perf arm-spe: Refactor operation packet handling Leo Yan
2020-10-29 7:19 ` [PATCH v5 19/21] perf arm-spe: Add more sub classes for operation packet Leo Yan
2020-10-29 7:19 ` [PATCH v5 20/21] perf arm_spe: Decode memory tagging properties Leo Yan
2020-10-29 7:19 ` [PATCH v5 21/21] perf arm-spe: Add support for ARMv8.3-SPE Leo Yan
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