From nobody Thu Sep 11 21:22:24 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3D9CDC41513 for ; Wed, 16 Aug 2023 11:52:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244794AbjHPLvk (ORCPT ); Wed, 16 Aug 2023 07:51:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48414 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244802AbjHPLvI (ORCPT ); Wed, 16 Aug 2023 07:51:08 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 378C32121; Wed, 16 Aug 2023 04:50:57 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1E6411063; Wed, 16 Aug 2023 04:51:38 -0700 (PDT) Received: from e127643.arm.com (unknown [10.57.4.137]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 7E76C3F64C; Wed, 16 Aug 2023 04:50:53 -0700 (PDT) From: James Clark To: linux-perf-users@vger.kernel.org, irogers@google.com, john.g.garry@oracle.com, renyu.zj@linux.alibaba.com, acme@kernel.org Cc: James Clark , Will Deacon , Mike Leach , Leo Yan , Peter Zijlstra , Ingo Molnar , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Adrian Hunter , Kan Liang , Haixin Yu , Nick Forrington , Kajol Jain , Eduard Zingerman , Sohom Datta , Rob Herring , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v6 2/6] perf test: Add a test for the new Arm CPU ID comparison behavior Date: Wed, 16 Aug 2023 12:47:44 +0100 Message-Id: <20230816114841.1679234-3-james.clark@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230816114841.1679234-1-james.clark@arm.com> References: <20230816114841.1679234-1-james.clark@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" 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. Reviewed-by: John Garry Signed-off-by: James Clark --- 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/a= rm64/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 =20 +struct test_suite; + +int test__cpuid_match(struct test_suite *test, int subtest); extern struct test_suite *arch_tests[]; =20 #endif diff --git a/tools/perf/arch/arm64/tests/Build b/tools/perf/arch/arm64/test= s/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 +=3D regs_load.o perf-$(CONFIG_DWARF_UNWIND) +=3D dwarf-unwind.o =20 perf-y +=3D arch-tests.o +perf-y +=3D cpuid-match.o diff --git a/tools/perf/arch/arm64/tests/arch-tests.c b/tools/perf/arch/arm= 64/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" =20 + +DEFINE_SUITE("arm64 CPUID matching", cpuid_match); + struct test_suite *arch_tests[] =3D { #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/ar= m64/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 + +#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 =3D 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; +} + --=20 2.34.1