From: James Clark <james.clark@arm.com>
To: acme@kernel.org, namhyung@kernel.org
Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
will@kernel.org, James Clark <james.clark@arm.com>,
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@kernel.org>,
bpf@vger.kernel.org
Subject: [RFC PATCH 4/4] perf test arm64: Add attr tests for new VG register
Date: Tue, 27 Sep 2022 16:41:04 +0100 [thread overview]
Message-ID: <20220927154104.869029-5-james.clark@arm.com> (raw)
In-Reply-To: <20220927154104.869029-1-james.clark@arm.com>
Ensure that the availability of the VG register behaves as expected
depending on the kernel version and SVE support.
Signed-off-by: James Clark <james.clark@arm.com>
---
.../attr/test-record-user-regs-no-sve-aarch64 | 9 +++++++++
.../attr/test-record-user-regs-old-sve-aarch64 | 10 ++++++++++
.../tests/attr/test-record-user-regs-sve-aarch64 | 14 ++++++++++++++
3 files changed, 33 insertions(+)
create mode 100644 tools/perf/tests/attr/test-record-user-regs-no-sve-aarch64
create mode 100644 tools/perf/tests/attr/test-record-user-regs-old-sve-aarch64
create mode 100644 tools/perf/tests/attr/test-record-user-regs-sve-aarch64
diff --git a/tools/perf/tests/attr/test-record-user-regs-no-sve-aarch64 b/tools/perf/tests/attr/test-record-user-regs-no-sve-aarch64
new file mode 100644
index 000000000000..fbb065842880
--- /dev/null
+++ b/tools/perf/tests/attr/test-record-user-regs-no-sve-aarch64
@@ -0,0 +1,9 @@
+# Test that asking for VG fails if the system doesn't support SVE. This
+# applies both before and after the feature was added in 6.1
+[config]
+command = record
+args = --no-bpf-event --user-regs=vg kill >/dev/null 2>&1
+ret = 129
+test_ret = true
+arch = aarch64
+auxv = auxv["AT_HWCAP"] & 0x200000 == 0
diff --git a/tools/perf/tests/attr/test-record-user-regs-old-sve-aarch64 b/tools/perf/tests/attr/test-record-user-regs-old-sve-aarch64
new file mode 100644
index 000000000000..15ebfc3418e3
--- /dev/null
+++ b/tools/perf/tests/attr/test-record-user-regs-old-sve-aarch64
@@ -0,0 +1,10 @@
+# Test that asking for VG always fails on old kernels because it was
+# added in 6.1. This applies to systems that either support or don't
+# support SVE.
+[config]
+command = record
+args = --no-bpf-event --user-regs=vg kill >/dev/null 2>&1
+ret = 129
+test_ret = true
+arch = aarch64
+kernel_until = 6.1
diff --git a/tools/perf/tests/attr/test-record-user-regs-sve-aarch64 b/tools/perf/tests/attr/test-record-user-regs-sve-aarch64
new file mode 100644
index 000000000000..c598c803221d
--- /dev/null
+++ b/tools/perf/tests/attr/test-record-user-regs-sve-aarch64
@@ -0,0 +1,14 @@
+# Test that asking for VG works if the system has SVE and after the
+# feature was added in 6.1
+[config]
+command = record
+args = --no-bpf-event --user-regs=vg kill >/dev/null 2>&1
+ret = 1
+test_ret = true
+arch = aarch64
+auxv = auxv["AT_HWCAP"] & 0x200000 == 0x200000
+kernel_since = 6.1
+
+[event:base-record]
+sample_type=4359
+sample_regs_user=70368744177664
--
2.28.0
prev parent reply other threads:[~2022-09-27 15:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-27 15:41 [RFC PATCH 0/4] Add VG register attr test with kernel version and feature detection James Clark
2022-09-27 15:41 ` [RFC PATCH 1/4] perf test: Add ability to test exit code for attr tests James Clark
2022-09-27 15:41 ` [RFC PATCH 2/4] perf test: Add mechanism for skipping attr tests on auxiliary vector values James Clark
2022-09-27 15:41 ` [RFC PATCH 3/4] perf test: Add mechanism for skipping attr tests on kernel versions James Clark
2022-09-27 15:41 ` James Clark [this message]
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