From mboxrd@z Thu Jan 1 00:00:00 1970 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 2F788C4338F for ; Wed, 28 Jul 2021 16:34:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 175F46101C for ; Wed, 28 Jul 2021 16:34:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229806AbhG1QeS (ORCPT ); Wed, 28 Jul 2021 12:34:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:37600 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229797AbhG1QeO (ORCPT ); Wed, 28 Jul 2021 12:34:14 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id E5BFA60F9B; Wed, 28 Jul 2021 16:34:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1627490052; bh=R0X/PIkba67SuYhiFH1mZDCaVfSVQGrDfuGGj27KXBk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=I49G2+ItDNCkfyRqD9DYs5pZuruYq/Nc2HJq+U9Y2ZHE+zESWn2j8Ys14OWKb9mw6 wXCvBeYKZzS0hClvI5UuFCzNoKdlo6IxXxkTxf1RGQbvl4+EE79+Bhaha83Mk1eDMq kq9kJIOy8cEb7bcEtWyFP4kwPoVIFIxn84I+zZn0V7EjXNJCsh/ldS49mZGy+lc4T6 C9rNbgmVrvIaERMVglWklxAtRaDLLUQDlwuFwfe9d90NP1Tyfji/KQzKTkZVeoDKSS b2a0HQL56Xlcp75/oTp9CTmWJHDOpl7u+MzqFpLir5ofkixkstt2PA6mc1hTX1K58J f0nWWxTgyGjOQ== 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 v2 2/4] kselftest/arm64: Validate vector lengths are set in sve-probe-vls Date: Wed, 28 Jul 2021 17:33:16 +0100 Message-Id: <20210728163318.51492-3-broonie@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210728163318.51492-1-broonie@kernel.org> References: <20210728163318.51492-1-broonie@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1685; h=from:subject; bh=R0X/PIkba67SuYhiFH1mZDCaVfSVQGrDfuGGj27KXBk=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBhAYbJ1000oTPFcE2/jiud0uwYD+HZwSrRozpN9ybC UULtZ56JATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCYQGGyQAKCRAk1otyXVSH0HABB/ 4wRecWQSAHkkRzw8y9ZX5HROcXHxWySc4zYjLUN9sZ3LlxLyZDOAiDvP/pUNd+zg+5PqYKv46q77nv 9nKir3jA0mvpmWs5bG0ZRc9TMkRcnsS/gvM8Zwhq0EgzAioC23dcxADGIWcAglanjp0wRIXz3V0r2f gYxjGeAlNbcDGzMWjaO1Xxg5einaZcjIy13HfanGKMwveDos0tE7eGwiEsUT9u8ULSsl5+FoDToncc Wb0iGnMs3TGGrTHKHOe9JbOW/3rk0fIXW3PK69f1dvzrZ6eFh6l8YtAtBFNA9MgukxCsNYhlOruHK4 Bova0U1lCgLvux6DiYRFGaFqnG8B/v X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB Content-Transfer-Encoding: 8bit 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 --- 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); -- 2.20.1