linux-kernel - [PATCH] perf test: update arm64 perf_event

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Message-Id: <20220125104435.2737-1-german.gomez@arm.com>
Date:   Tue, 25 Jan 2022 10:44:34 +0000
From:   German Gomez <german.gomez@....com>
To:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        acme@...nel.org
Cc:     irogers@...gle.com, German Gomez <german.gomez@....com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        James Clark <james.clark@....com>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Alexandre Truong <alexandre.truong@....com>,
        netdev@...r.kernel.org, bpf@...r.kernel.org
Subject: [PATCH] perf test: update arm64 perf_event_attr tests for --call-graph

The struct perf_event_attr is initialised differently in Arm64 when
recording in call-graph fp mode, so update the relevant tests, and add
two extra arm64-only tests.

Fixes: 7248e308a575 ("perf tools: Record ARM64 LR register automatically")
Signed-off-by: German Gomez <german.gomez@....com>
---
 tools/perf/tests/attr/README                            | 2 ++
 tools/perf/tests/attr/test-record-graph-default         | 2 ++
 tools/perf/tests/attr/test-record-graph-default-aarch64 | 9 +++++++++
 tools/perf/tests/attr/test-record-graph-fp              | 2 ++
 tools/perf/tests/attr/test-record-graph-fp-aarch64      | 9 +++++++++
 5 files changed, 24 insertions(+)
 create mode 100644 tools/perf/tests/attr/test-record-graph-default-aarch64
 create mode 100644 tools/perf/tests/attr/test-record-graph-fp-aarch64

diff --git a/tools/perf/tests/attr/README b/tools/perf/tests/attr/README
index a36f49fb4dbe..1116fc6bf2ac 100644
--- a/tools/perf/tests/attr/README
+++ b/tools/perf/tests/attr/README
@@ -45,8 +45,10 @@ Following tests are defined (with perf commands):
   perf record -d kill                           (test-record-data)
   perf record -F 100 kill                       (test-record-freq)
   perf record -g kill                           (test-record-graph-default)
+  perf record -g kill                           (test-record-graph-default-aarch64)
   perf record --call-graph dwarf kill		(test-record-graph-dwarf)
   perf record --call-graph fp kill              (test-record-graph-fp)
+  perf record --call-graph fp kill              (test-record-graph-fp-aarch64)
   perf record --group -e cycles,instructions kill (test-record-group)
   perf record -e '{cycles,instructions}' kill   (test-record-group1)
   perf record -e '{cycles/period=1/,instructions/period=2/}:S' kill (test-record-group2)
diff --git a/tools/perf/tests/attr/test-record-graph-default b/tools/perf/tests/attr/test-record-graph-default
index 5d8234d50845..f0a18b4ea4f5 100644
--- a/tools/perf/tests/attr/test-record-graph-default
+++ b/tools/perf/tests/attr/test-record-graph-default
@@ -2,6 +2,8 @@
 command = record
 args    = --no-bpf-event -g kill >/dev/null 2>&1
 ret     = 1
+# arm64 enables registers in the default mode (fp)
+arch    = !aarch64
 
 [event:base-record]
 sample_type=295
diff --git a/tools/perf/tests/attr/test-record-graph-default-aarch64 b/tools/perf/tests/attr/test-record-graph-default-aarch64
new file mode 100644
index 000000000000..e98d62efb6f7
--- /dev/null
+++ b/tools/perf/tests/attr/test-record-graph-default-aarch64
@@ -0,0 +1,9 @@
+[config]
+command = record
+args    = --no-bpf-event -g kill >/dev/null 2>&1
+ret     = 1
+arch    = aarch64
+
+[event:base-record]
+sample_type=4391
+sample_regs_user=1073741824
diff --git a/tools/perf/tests/attr/test-record-graph-fp b/tools/perf/tests/attr/test-record-graph-fp
index 5630521c0b0f..a6e60e839205 100644
--- a/tools/perf/tests/attr/test-record-graph-fp
+++ b/tools/perf/tests/attr/test-record-graph-fp
@@ -2,6 +2,8 @@
 command = record
 args    = --no-bpf-event --call-graph fp kill >/dev/null 2>&1
 ret     = 1
+# arm64 enables registers in fp mode
+arch    = !aarch64
 
 [event:base-record]
 sample_type=295
diff --git a/tools/perf/tests/attr/test-record-graph-fp-aarch64 b/tools/perf/tests/attr/test-record-graph-fp-aarch64
new file mode 100644
index 000000000000..cbeea9971285
--- /dev/null
+++ b/tools/perf/tests/attr/test-record-graph-fp-aarch64
@@ -0,0 +1,9 @@
+[config]
+command = record
+args    = --no-bpf-event --call-graph fp kill >/dev/null 2>&1
+ret     = 1
+arch    = aarch64
+
+[event:base-record]
+sample_type=4391
+sample_regs_user=1073741824
-- 
2.25.1