From patchwork Tue Aug 3 14:04:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 12416437 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC27EC4338F for ; Tue, 3 Aug 2021 14:07:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AE26560FA0 for ; Tue, 3 Aug 2021 14:07:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236421AbhHCOHS (ORCPT ); Tue, 3 Aug 2021 10:07:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:45982 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236045AbhHCOHR (ORCPT ); Tue, 3 Aug 2021 10:07:17 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5938660EE7; Tue, 3 Aug 2021 14:07:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1627999626; bh=EKvkyVbCFIkHGIl1Aft6XfS6vxY/FRzv+NjTpqSFwTM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ooq1d1wq9OpuQC5QvktC8CdDA8/IqoX2jf25b4/phsUanbnSW4cgv115hVzMqlnOG 4T167GiFTkYtgJwn6OWIEGnSnO4RfRIm1NDiuUQ7if9SqwNUyJw0XLRJo3tXr2kuyv NiA5bY/zi8ZVMRuo1vewlp+4Yz6xZLbmUBXmnQcuCbKSpRJJstdAzKr407xx7wfRAN EMntfHkAFII2dvssLPImOCmaWCaWithAu2bJiClxwpCzi1sKvbk1StiG9YleNouL4J dLr32Eglhbhjb4B9No6/ySU8BqoBQ1XkMZTKqFWRcVySFcmO/AG/Y5Da1ShqsT1Lsg LlNnSqiA2dgYA== From: Mark Brown To: Catalin Marinas , Will Deacon , Shuah Khan Cc: Dave Martin , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, Mark Brown Subject: [PATCH v5 2/4] kselftest/arm64: Validate vector lengths are set in sve-probe-vls Date: Tue, 3 Aug 2021 15:04:48 +0100 Message-Id: <20210803140450.46624-3-broonie@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210803140450.46624-1-broonie@kernel.org> References: <20210803140450.46624-1-broonie@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1733; h=from:subject; bh=EKvkyVbCFIkHGIl1Aft6XfS6vxY/FRzv+NjTpqSFwTM=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBhCUz+yb4Ch9ouisizN+OUT44lVwHjZYwPWcERArhr KSPtigSJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCYQlM/gAKCRAk1otyXVSH0LJZB/ 9Z5f4wgiwSMPzOIt5LyYqJU+yMz7rCb0HOEABAfK/dBg8ouHLEBXTg4pWpsHqCZCxQwYYI0IQe6o16 BpA5VpOiGKsHC0/Bbu+pEFbf5W7aTCGHr2aHtuWFBRrPvgx/5gNSHIUkLwNwvNWky9avYVXeeYRqwy UcUcOsQUK7l4vIQ/e+rVPYqfG2cgnb041Y5GWo38+hSa7wY4K+EdghNze5598ZH7FS2kL+GFxo3yTn neRAT7Bn2GAgAyxSfi3s/3DNea6VnFPrX2Fj0ieePKfUFS3livhrSPQe+i/4W0n4Www/0Fnt8tLn6I prTA+iao5xdsPtO5wO7MUEWYhSlTKF X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Currently sve-probe-vls does not verify that the vector lengths reported by the prctl() interface are actually what is reported by the architecture, use the rdvl_sve() helper to validate this. Signed-off-by: Mark Brown Reviewed-by: Dave Martin --- tools/testing/selftests/arm64/fp/Makefile | 2 +- tools/testing/selftests/arm64/fp/sve-probe-vls.c | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/arm64/fp/Makefile b/tools/testing/selftests/arm64/fp/Makefile index ed62e7003b96..fa3a0167db2d 100644 --- a/tools/testing/selftests/arm64/fp/Makefile +++ b/tools/testing/selftests/arm64/fp/Makefile @@ -13,7 +13,7 @@ fpsimd-test: fpsimd-test.o $(CC) -nostdlib $^ -o $@ rdvl-sve: rdvl-sve.o rdvl.o sve-ptrace: sve-ptrace.o sve-ptrace-asm.o -sve-probe-vls: sve-probe-vls.o +sve-probe-vls: sve-probe-vls.o rdvl.o sve-test: sve-test.o $(CC) -nostdlib $^ -o $@ vlset: vlset.o diff --git a/tools/testing/selftests/arm64/fp/sve-probe-vls.c b/tools/testing/selftests/arm64/fp/sve-probe-vls.c index 76e138525d55..a24eca7a4ecb 100644 --- a/tools/testing/selftests/arm64/fp/sve-probe-vls.c +++ b/tools/testing/selftests/arm64/fp/sve-probe-vls.c @@ -13,6 +13,7 @@ #include #include "../../kselftest.h" +#include "rdvl.h" int main(int argc, char **argv) { @@ -38,6 +39,10 @@ int main(int argc, char **argv) vl &= PR_SVE_VL_LEN_MASK; + if (rdvl_sve() != vl) + ksft_exit_fail_msg("PR_SVE_SET_VL reports %d, RDVL %d\n", + vl, rdvl_sve()); + if (!sve_vl_valid(vl)) ksft_exit_fail_msg("VL %d invalid\n", vl); vq = sve_vq_from_vl(vl);