From patchwork Mon Jan 16 16:04:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 643277 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 00A76C46467 for ; Mon, 16 Jan 2023 16:12:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232762AbjAPQMN (ORCPT ); Mon, 16 Jan 2023 11:12:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232300AbjAPQLv (ORCPT ); Mon, 16 Jan 2023 11:11:51 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 147E82A99A; Mon, 16 Jan 2023 08:07:24 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 7BDFD61042; Mon, 16 Jan 2023 16:07:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3BF73C433F1; Mon, 16 Jan 2023 16:07:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1673885243; bh=xpcRdOSI+pWh8Dd/1fKmTFXFGXs6RJ+tO7G27BvpNB4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=m+yVHILyiM2wWlouFfPoPMMp09Rmsal++vlVj8jq/39tXuM/U8ti8zdRICC6P0w6Y 7HN0f2ZjtEN2u6roR4oE1GJx/y28h9zvEjVYshxjrHDKbyTPA6xEEsakS+auGNLZj2 mv/qFsGJiMUjgvSjlTnDAV1Vx2ULyNCUBpmw96TB9c1lqwFS+4dGKZIYThvWGhPos+ mU6DuoyEI9+j4g6r7zNJNXtuYMTsHIfbZMUBE/3fphT8lUJRy4L4zPS92W9TdqOr0M kKonQ6o2WmpHpFdrdVORtnKyLER+riqIStV3CkC2uVdSXMETfTSjhaE9qJwHzcs2nh hj59WMTKBvogQ== From: Mark Brown Date: Mon, 16 Jan 2023 16:04:50 +0000 Subject: [PATCH v4 15/21] kselftest/arm64: Cover ZT in the FP stress test MIME-Version: 1.0 Message-Id: <20221208-arm64-sme2-v4-15-f2fa0aef982f@kernel.org> References: <20221208-arm64-sme2-v4-0-f2fa0aef982f@kernel.org> In-Reply-To: <20221208-arm64-sme2-v4-0-f2fa0aef982f@kernel.org> To: Catalin Marinas , Will Deacon , Oleg Nesterov , Marc Zyngier , James Morse , Alexandru Elisei , Suzuki K Poulose , Oliver Upton , Shuah Khan Cc: Alan Hayward , Luis Machado , Szabolcs Nagy , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev, linux-kselftest@vger.kernel.org, Mark Brown X-Mailer: b4 0.12-dev-77e06 X-Developer-Signature: v=1; a=openpgp-sha256; l=2378; i=broonie@kernel.org; h=from:subject:message-id; bh=xpcRdOSI+pWh8Dd/1fKmTFXFGXs6RJ+tO7G27BvpNB4=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBjxXWtbVjxf1gZ0eV1w6e0S9q/gTJan4sO2TTdJpgr Zw6BZiKJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCY8V1rQAKCRAk1otyXVSH0LnzB/ 4tcQS5JmXayBZpensegs1akP8qRB8v29rUjWRoflzE33IGuPIeuQdlYl3H/LssIkEZgxub0kbPMAnb CgaqYDLQl8Ra2TOUeK4lIBGssfB1BS1oVaJBtYFQbLc0+x7ZpUOAn3susvIucSgbS1MurdQRs/kHDV N0xWLsRTyW7GEso4zn+FibOps6HwbVS1UoYs30gZF+dqHwQ1B23VpvObb4eBnmSBwi9ax0BRItJWAP D849ePFXgyHC8pwCrBAwr0ZFdaViDtudbKeCc5UZXtFQR4iskt1SEfbY1ZJZl7o4h6Xy0BJT9Rolp4 n26MJgEFNz9szmZp+RdxqQ/AOaqlSa X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Hook up the newly added zt-test program in the FPSIMD stress tests, start a copy per CPU when SME2 is supported. Signed-off-by: Mark Brown --- tools/testing/selftests/arm64/fp/fp-stress.c | 29 ++++++++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/arm64/fp/fp-stress.c b/tools/testing/selftests/arm64/fp/fp-stress.c index f8b2f41aac36..520385fcfede 100644 --- a/tools/testing/selftests/arm64/fp/fp-stress.c +++ b/tools/testing/selftests/arm64/fp/fp-stress.c @@ -370,6 +370,19 @@ static void start_za(struct child_data *child, int vl, int cpu) ksft_print_msg("Started %s\n", child->name); } +static void start_zt(struct child_data *child, int cpu) +{ + int ret; + + ret = asprintf(&child->name, "ZT-%d", cpu); + if (ret == -1) + ksft_exit_fail_msg("asprintf() failed\n"); + + child_start(child, "./zt-test"); + + ksft_print_msg("Started %s\n", child->name); +} + static void probe_vls(int vls[], int *vl_count, int set_vl) { unsigned int vq; @@ -426,6 +439,7 @@ int main(int argc, char **argv) bool all_children_started = false; int seen_children; int sve_vls[MAX_VLS], sme_vls[MAX_VLS]; + bool have_sme2; struct sigaction sa; while ((c = getopt_long(argc, argv, "t:", options, NULL)) != -1) { @@ -458,6 +472,13 @@ int main(int argc, char **argv) sme_vl_count = 0; } + if (getauxval(AT_HWCAP2) & HWCAP2_SME2) { + tests += cpus; + have_sme2 = true; + } else { + have_sme2 = false; + } + /* Force context switching if we only have FPSIMD */ if (!sve_vl_count && !sme_vl_count) fpsimd_per_cpu = 2; @@ -468,8 +489,9 @@ int main(int argc, char **argv) ksft_print_header(); ksft_set_plan(tests); - ksft_print_msg("%d CPUs, %d SVE VLs, %d SME VLs\n", - cpus, sve_vl_count, sme_vl_count); + ksft_print_msg("%d CPUs, %d SVE VLs, %d SME VLs, SME2 %s\n", + cpus, sve_vl_count, sme_vl_count, + have_sme2 ? "present" : "absent"); if (timeout > 0) ksft_print_msg("Will run for %ds\n", timeout); @@ -527,6 +549,9 @@ int main(int argc, char **argv) start_ssve(&children[num_children++], sme_vls[j], i); start_za(&children[num_children++], sme_vls[j], i); } + + if (have_sme2) + start_zt(&children[num_children++], i); } /*