From patchwork Wed Jan 26 15:11:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 12725217 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 9D69DC2BA4C for ; Wed, 26 Jan 2022 15:13:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235868AbiAZPNo (ORCPT ); Wed, 26 Jan 2022 10:13:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41156 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233709AbiAZPNn (ORCPT ); Wed, 26 Jan 2022 10:13:43 -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 7038FC06161C for ; Wed, 26 Jan 2022 07:13:43 -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 00B6C61463 for ; Wed, 26 Jan 2022 15:13:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3505AC340E8; Wed, 26 Jan 2022 15:13:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1643210022; bh=3il89y80lqKSeBlP8c8K13FChN+0Rfp1qjkKOqCKgPI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FWEnz3EIiHlmvbB7rQeaTws4pfN8vyb893hZehdNgL0TiAEWo2Mj99nefj7g/4FjL qjHEIFce8Rmkg2U/LjdEYkyuYygobDXqKiPmMdW8jGZpQp+eQqvEDGecYSMqv0SzcN 9tua8FDIbyh2B3pvkpCQxfZir8AW1Or/C/axfcuvvHIHOUWhQwedPgDfKvZErgksUy gEpTVxBME6urtRSDBO5dMwfZTmgHfMGWJ1tpDPc4eKnvPFiqDHPG9UIdy4m3O4xPlQ c5TZ+WHGBts5m/KracU2ruCizN5pwcwTd8HbMDAwRwY/b0XeZsC/ZpiQnRu9726nLX 9nLPQTMQTn+7Q== From: Mark Brown To: Catalin Marinas , Will Deacon , Marc Zyngier , Shuah Khan , Shuah Khan Cc: Alan Hayward , Luis Machado , Salil Akerkar , Basant Kumar Dwivedi , Szabolcs Nagy , James Morse , Alexandru Elisei , Suzuki K Poulose , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, kvmarm@lists.cs.columbia.edu, Mark Brown Subject: [PATCH v9 31/40] kselftest/arm64: Extend vector configuration API tests to cover SME Date: Wed, 26 Jan 2022 15:11:11 +0000 Message-Id: <20220126151120.3811248-32-broonie@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220126151120.3811248-1-broonie@kernel.org> References: <20220126151120.3811248-1-broonie@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3696; h=from:subject; bh=3il89y80lqKSeBlP8c8K13FChN+0Rfp1qjkKOqCKgPI=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBh8WSPN4dR74Qw9LPAlbaGHQMLY9KQX+QsTH0nXuoi YlK5KcGJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCYfFkjwAKCRAk1otyXVSH0Mz4B/ 9tDFztfdOBzS3ehx8vyMgbf30A/qNcQPmY/ZdZ472gE9Li/AzhSNI8RQUW6X66icjk4x+6P3ypR4SQ e4TFRyI94rAQsmexQYEZSZNsbNaESW2rukTItfJKm2vJLjEJel0jFXmlaizAU8NqwBHpPizR+Ky96l P4tuu2nsCiFsVBnrdzE+YBlsIp/e+B1zU/FyYH0H5o9LbnaqqXHu7c5UlCV5Yl9zHM0uBSoaGvobEB EM9vdcAOrhrtdHMY+V4fnllyjgWvFeqZsoikKrSaPxZqvv3COi8CgVjvNX7IyttRDN0kKjvLlt2FnI VI6IS86/KKuq1BesENOYTLImnYhrUo X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Provide RDVL helpers for SME and extend the main vector configuration tests to cover SME. Signed-off-by: Mark Brown --- tools/testing/selftests/arm64/fp/.gitignore | 1 + tools/testing/selftests/arm64/fp/Makefile | 3 ++- tools/testing/selftests/arm64/fp/rdvl-sme.c | 14 ++++++++++++++ tools/testing/selftests/arm64/fp/rdvl.S | 8 ++++++++ tools/testing/selftests/arm64/fp/rdvl.h | 1 + tools/testing/selftests/arm64/fp/vec-syscfg.c | 10 ++++++++++ 6 files changed, 36 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/arm64/fp/rdvl-sme.c diff --git a/tools/testing/selftests/arm64/fp/.gitignore b/tools/testing/selftests/arm64/fp/.gitignore index c50d86331ed2..6e9a610c5e5d 100644 --- a/tools/testing/selftests/arm64/fp/.gitignore +++ b/tools/testing/selftests/arm64/fp/.gitignore @@ -1,5 +1,6 @@ fp-pidbench fpsimd-test +rdvl-sme rdvl-sve sve-probe-vls sve-ptrace diff --git a/tools/testing/selftests/arm64/fp/Makefile b/tools/testing/selftests/arm64/fp/Makefile index 95f0b877a060..a224fff8082b 100644 --- a/tools/testing/selftests/arm64/fp/Makefile +++ b/tools/testing/selftests/arm64/fp/Makefile @@ -3,7 +3,7 @@ CFLAGS += -I../../../../../usr/include/ TEST_GEN_PROGS := sve-ptrace sve-probe-vls vec-syscfg TEST_PROGS_EXTENDED := fp-pidbench fpsimd-test fpsimd-stress \ - rdvl-sve \ + rdvl-sme rdvl-sve \ sve-test sve-stress \ vlset @@ -13,6 +13,7 @@ fp-pidbench: fp-pidbench.S asm-utils.o $(CC) -nostdlib $^ -o $@ fpsimd-test: fpsimd-test.o asm-utils.o $(CC) -nostdlib $^ -o $@ +rdvl-sme: rdvl-sme.o rdvl.o rdvl-sve: rdvl-sve.o rdvl.o sve-ptrace: sve-ptrace.o sve-probe-vls: sve-probe-vls.o rdvl.o diff --git a/tools/testing/selftests/arm64/fp/rdvl-sme.c b/tools/testing/selftests/arm64/fp/rdvl-sme.c new file mode 100644 index 000000000000..49b0b2e08bac --- /dev/null +++ b/tools/testing/selftests/arm64/fp/rdvl-sme.c @@ -0,0 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include + +#include "rdvl.h" + +int main(void) +{ + int vl = rdvl_sme(); + + printf("%d\n", vl); + + return 0; +} diff --git a/tools/testing/selftests/arm64/fp/rdvl.S b/tools/testing/selftests/arm64/fp/rdvl.S index c916c1c9defd..1a2ebf07a20c 100644 --- a/tools/testing/selftests/arm64/fp/rdvl.S +++ b/tools/testing/selftests/arm64/fp/rdvl.S @@ -8,3 +8,11 @@ rdvl_sve: hint 34 // BTI C rdvl x0, #1 ret + +.globl rdvl_sme +rdvl_sme: + hint 34 // BTI C + + .inst 0x4bf5820 // RDSVL x0, #1 + + ret diff --git a/tools/testing/selftests/arm64/fp/rdvl.h b/tools/testing/selftests/arm64/fp/rdvl.h index 7c9d953fc9e7..5d323679fbc9 100644 --- a/tools/testing/selftests/arm64/fp/rdvl.h +++ b/tools/testing/selftests/arm64/fp/rdvl.h @@ -3,6 +3,7 @@ #ifndef RDVL_H #define RDVL_H +int rdvl_sme(void); int rdvl_sve(void); #endif diff --git a/tools/testing/selftests/arm64/fp/vec-syscfg.c b/tools/testing/selftests/arm64/fp/vec-syscfg.c index c90658811a83..9bcfcdc34ee9 100644 --- a/tools/testing/selftests/arm64/fp/vec-syscfg.c +++ b/tools/testing/selftests/arm64/fp/vec-syscfg.c @@ -51,6 +51,16 @@ static struct vec_data vec_data[] = { .prctl_set = PR_SVE_SET_VL, .default_vl_file = "/proc/sys/abi/sve_default_vector_length", }, + { + .name = "SME", + .hwcap_type = AT_HWCAP2, + .hwcap = HWCAP2_SME, + .rdvl = rdvl_sme, + .rdvl_binary = "./rdvl-sme", + .prctl_get = PR_SME_GET_VL, + .prctl_set = PR_SME_SET_VL, + .default_vl_file = "/proc/sys/abi/sme_default_vector_length", + }, }; static int stdio_read_integer(FILE *f, const char *what, int *val)