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Message-Id: <20230811144017.491628-4-james.clark@arm.com>
Date: Fri, 11 Aug 2023 15:39:20 +0100
From: James Clark <james.clark@....com>
To: linux-perf-users@...r.kernel.org, irogers@...gle.com,
john.g.garry@...cle.com, renyu.zj@...ux.alibaba.com
Cc: James Clark <james.clark@....com>, Will Deacon <will@...nel.org>,
Mike Leach <mike.leach@...aro.org>,
Leo Yan <leo.yan@...aro.org>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>,
Suzuki K Poulose <suzuki.poulose@....com>,
Kajol Jain <kjain@...ux.ibm.com>,
Nick Forrington <nick.forrington@....com>,
Kan Liang <kan.liang@...ux.intel.com>,
Eduard Zingerman <eddyz87@...il.com>,
Sohom Datta <sohomdatta1@...il.com>,
Rob Herring <robh@...nel.org>, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, coresight@...ts.linaro.org
Subject: [PATCH v5 3/6] perf test: Add a test for the new Arm CPU ID comparison behavior
Now that variant and revision fields are taken into account the behavior
is slightly more complicated so add a test to ensure that this behaves
as expected.
Signed-off-by: James Clark <james.clark@....com>
---
tools/perf/arch/arm64/include/arch-tests.h | 3 ++
tools/perf/arch/arm64/tests/Build | 1 +
tools/perf/arch/arm64/tests/arch-tests.c | 4 +++
tools/perf/arch/arm64/tests/cpuid-match.c | 38 ++++++++++++++++++++++
4 files changed, 46 insertions(+)
create mode 100644 tools/perf/arch/arm64/tests/cpuid-match.c
diff --git a/tools/perf/arch/arm64/include/arch-tests.h b/tools/perf/arch/arm64/include/arch-tests.h
index 452b3d904521..474d7cf5afbd 100644
--- a/tools/perf/arch/arm64/include/arch-tests.h
+++ b/tools/perf/arch/arm64/include/arch-tests.h
@@ -2,6 +2,9 @@
#ifndef ARCH_TESTS_H
#define ARCH_TESTS_H
+struct test_suite;
+
+int test__cpuid_match(struct test_suite *test, int subtest);
extern struct test_suite *arch_tests[];
#endif
diff --git a/tools/perf/arch/arm64/tests/Build b/tools/perf/arch/arm64/tests/Build
index a61c06bdb757..e337c09e7f56 100644
--- a/tools/perf/arch/arm64/tests/Build
+++ b/tools/perf/arch/arm64/tests/Build
@@ -2,3 +2,4 @@ perf-y += regs_load.o
perf-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
perf-y += arch-tests.o
+perf-y += cpuid-match.o
diff --git a/tools/perf/arch/arm64/tests/arch-tests.c b/tools/perf/arch/arm64/tests/arch-tests.c
index ad16b4f8f63e..74932e72c727 100644
--- a/tools/perf/arch/arm64/tests/arch-tests.c
+++ b/tools/perf/arch/arm64/tests/arch-tests.c
@@ -3,9 +3,13 @@
#include "tests/tests.h"
#include "arch-tests.h"
+
+DEFINE_SUITE("arm64 CPUID matching", cpuid_match);
+
struct test_suite *arch_tests[] = {
#ifdef HAVE_DWARF_UNWIND_SUPPORT
&suite__dwarf_unwind,
#endif
+ &suite__cpuid_match,
NULL,
};
diff --git a/tools/perf/arch/arm64/tests/cpuid-match.c b/tools/perf/arch/arm64/tests/cpuid-match.c
new file mode 100644
index 000000000000..af0871b54ae7
--- /dev/null
+++ b/tools/perf/arch/arm64/tests/cpuid-match.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.h>
+
+#include "arch-tests.h"
+#include "tests/tests.h"
+#include "util/header.h"
+
+int test__cpuid_match(struct test_suite *test __maybe_unused,
+ int subtest __maybe_unused)
+{
+ /* midr with no leading zeros matches */
+ if (strcmp_cpuid_str("0x410fd0c0", "0x00000000410fd0c0"))
+ return -1;
+ /* Upper case matches */
+ if (strcmp_cpuid_str("0x410fd0c0", "0x00000000410FD0C0"))
+ return -1;
+ /* r0p0 = r0p0 matches */
+ if (strcmp_cpuid_str("0x00000000410fd480", "0x00000000410fd480"))
+ return -1;
+ /* r0p1 > r0p0 matches */
+ if (strcmp_cpuid_str("0x00000000410fd480", "0x00000000410fd481"))
+ return -1;
+ /* r1p0 > r0p0 matches*/
+ if (strcmp_cpuid_str("0x00000000410fd480", "0x00000000411fd480"))
+ return -1;
+ /* r0p0 < r0p1 doesn't match */
+ if (!strcmp_cpuid_str("0x00000000410fd481", "0x00000000410fd480"))
+ return -1;
+ /* r0p0 < r1p0 doesn't match */
+ if (!strcmp_cpuid_str("0x00000000411fd480", "0x00000000410fd480"))
+ return -1;
+ /* Different CPU doesn't match */
+ if (!strcmp_cpuid_str("0x00000000410fd4c0", "0x00000000430f0af0"))
+ return -1;
+
+ return 0;
+}
+
--
2.34.1
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