perf test: Add perf_event_attr tests for the arm_spe event

Adds a couple of perf_event_attr tests for the fix introduced in [1].
The tests check that the correct sample_period value is set in the
struct perf_event_attr of the arm_spe events.

[1]: https://lore.kernel.org/all/20220118144054.2541-1-german.gomez@arm.com/

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: German Gomez <german.gomez@arm.com>
Tested-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220126160710.32983-1-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/tests/attr/README

@@ -58,6 +58,8 @@ Following tests are defined (with perf commands):
   perf record -c 100 -P kill                    (test-record-period)
   perf record -c 1 --pfm-events=cycles:period=2 (test-record-pfm-period)
   perf record -R kill                           (test-record-raw)
+  perf record -c 2 -e arm_spe_0// -- kill       (test-record-spe-period)
+  perf record -e arm_spe_0/period=3/ -- kill    (test-record-spe-period-term)
   perf stat -e cycles kill                      (test-stat-basic)
   perf stat kill                                (test-stat-default)
   perf stat -d kill                             (test-stat-detailed-1)

tools/perf/tests/attr/base-record-spe

@@ -0,0 +1,40 @@
+[event]
+fd=*
+group_fd=-1
+flags=*
+cpu=*
+type=*
+size=*
+config=*
+sample_period=*
+sample_type=*
+read_format=*
+disabled=*
+inherit=*
+pinned=*
+exclusive=*
+exclude_user=*
+exclude_kernel=*
+exclude_hv=*
+exclude_idle=*
+mmap=*
+comm=*
+freq=*
+inherit_stat=*
+enable_on_exec=*
+task=*
+watermark=*
+precise_ip=*
+mmap_data=*
+sample_id_all=*
+exclude_host=*
+exclude_guest=*
+exclude_callchain_kernel=*
+exclude_callchain_user=*
+wakeup_events=*
+bp_type=*
+config1=*
+config2=*
+branch_sample_type=*
+sample_regs_user=*
+sample_stack_user=*

tools/perf/tests/attr/test-record-spe-period

@@ -0,0 +1,12 @@
+[config]
+command = record
+args    = --no-bpf-event -c 2 -e arm_spe_0// -- kill >/dev/null 2>&1
+ret     = 1
+arch    = aarch64
+
+[event-10:base-record-spe]
+sample_period=2
+freq=0
+
+# dummy event
+[event-1:base-record-spe]

tools/perf/tests/attr/test-record-spe-period-term

@@ -0,0 +1,12 @@
+[config]
+command = record
+args    = --no-bpf-event -e arm_spe_0/period=3/ -- kill >/dev/null 2>&1
+ret     = 1
+arch    = aarch64
+
+[event-10:base-record-spe]
+sample_period=3
+freq=0
+
+# dummy event
+[event-1:base-record-spe]