From patchwork Mon Oct 18 19:08:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 12567811 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C1ED3C433FE for ; Mon, 18 Oct 2021 19:11:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AA54361355 for ; Mon, 18 Oct 2021 19:11:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233165AbhJRTNx (ORCPT ); Mon, 18 Oct 2021 15:13:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:39022 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232813AbhJRTNw (ORCPT ); Mon, 18 Oct 2021 15:13:52 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9AA4B6128B; Mon, 18 Oct 2021 19:11:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1634584301; bh=P2l5Y5PDPDJcPc6k74icHUD6sRurj6ctKkCgiE7n3uE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Mx1xiFyRQc9juJ3sYKtVjZy6Fx+vBrBLen3J8zk8Z44HhHD0CINoj4LwpnOnaOfyi q4oYlDFTYEdTVqkR2olfBC7kThYbOZls3S64b9S7WNpMj/P5aezsS54XjW9944Njny u5Hc+XEL6pv9ens4Y8ECduaX9zh46BDRpdlgtaSrHmaT80xoaJy9y+2ihOmHS7euFA l+YsyO/nwU17O36djwXDCD/Sk125Whyj1ZHN16V9WMsLJW1HxiRAwFpOxJchOx9+o6 GuYKWvGOtzgJBoPMi2gYFkdFoYAhEOrhlmZvolPzc4LPs6VgygJzWV19MN48WXf7/G UOk/ngQmzUIKA== From: Mark Brown To: Catalin Marinas , Will Deacon , Shuah Khan , Shuah Khan Cc: Alan Hayward , Luis Machado , Salil Akerkar , Basant Kumar Dwivedi , Szabolcs Nagy , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, Mark Brown Subject: [PATCH v2 35/42] kselftest/arm64: sme: Add streaming SME support to vlset Date: Mon, 18 Oct 2021 20:08:51 +0100 Message-Id: <20211018190858.2119209-36-broonie@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211018190858.2119209-1-broonie@kernel.org> References: <20211018190858.2119209-1-broonie@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1924; h=from:subject; bh=P2l5Y5PDPDJcPc6k74icHUD6sRurj6ctKkCgiE7n3uE=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBhbcZCOiCWCuqdEhEwDeB0fuhFIzO/DqyGIULZWFjy SmyMmrCJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCYW3GQgAKCRAk1otyXVSH0Ek6B/ 4j09hDwjQpLv0be/vtzRDNBH3YOGDen207SJTrLLgJcBAD1HuAeXZ9TW3ZG6eCTQraDXeSyU/Qk9TJ OIK1HdouBx278JtdIYMvzhWdtrogLFsvNiEh5OWEPRIaIG5OVAidaApPe5IFHqS727hRPZ3Sn4mWzr nBLZdLgfOQbiYbAyZ2hES4zVOnBizBXgbErYtSHXb3yxKRJH8tjfo8fwFZqJyd0Nm3OicmQjO0ASqf HrhNhsouEFHLpmgwfOWt0ixnVCfuzuxZO2CWm/dRGbE5ownZL5qLJCo94EjO3ry4Yu0MzyVrkCUQwY NzcnrpE232+l8nwFtaIeBVHCNbBUHm X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org The Scalable Matrix Extenions (SME) introduces additional register state with configurable vector lengths, similar to SVE but configured separately. Extend vlset to support configuring this state with a --sme or -s command line option. Signed-off-by: Mark Brown --- tools/testing/selftests/arm64/fp/vlset.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/arm64/fp/vlset.c b/tools/testing/selftests/arm64/fp/vlset.c index 308d27a68226..76912a581a95 100644 --- a/tools/testing/selftests/arm64/fp/vlset.c +++ b/tools/testing/selftests/arm64/fp/vlset.c @@ -22,12 +22,15 @@ static int inherit = 0; static int no_inherit = 0; static int force = 0; static unsigned long vl; +static int set_ctl = PR_SVE_SET_VL; +static int get_ctl = PR_SVE_GET_VL; static const struct option options[] = { { "force", no_argument, NULL, 'f' }, { "inherit", no_argument, NULL, 'i' }, { "max", no_argument, NULL, 'M' }, { "no-inherit", no_argument, &no_inherit, 1 }, + { "sme", no_argument, NULL, 's' }, { "help", no_argument, NULL, '?' }, {} }; @@ -50,6 +53,9 @@ static int parse_options(int argc, char **argv) case 'M': vl = SVE_VL_MAX; break; case 'f': force = 1; break; case 'i': inherit = 1; break; + case 's': set_ctl = PR_SME_SET_VL; + get_ctl = PR_SME_GET_VL; + break; case 0: break; default: goto error; } @@ -125,14 +131,14 @@ int main(int argc, char **argv) if (inherit) flags |= PR_SVE_VL_INHERIT; - t = prctl(PR_SVE_SET_VL, vl | flags); + t = prctl(set_ctl, vl | flags); if (t < 0) { fprintf(stderr, "%s: PR_SVE_SET_VL: %s\n", program_name, strerror(errno)); goto error; } - t = prctl(PR_SVE_GET_VL); + t = prctl(get_ctl); if (t == -1) { fprintf(stderr, "%s: PR_SVE_GET_VL: %s\n", program_name, strerror(errno));