From patchwork Wed Jan 26 15:27:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 12725321 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 B0786C2BA4C for ; Wed, 26 Jan 2022 15:32:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242860AbiAZPcY (ORCPT ); Wed, 26 Jan 2022 10:32:24 -0500 Received: from dfw.source.kernel.org ([139.178.84.217]:51512 "EHLO dfw.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235837AbiAZPcX (ORCPT ); Wed, 26 Jan 2022 10:32:23 -0500 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 9758D618E2 for ; Wed, 26 Jan 2022 15:32:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A6BE0C340E9; Wed, 26 Jan 2022 15:32:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1643211143; bh=3il89y80lqKSeBlP8c8K13FChN+0Rfp1qjkKOqCKgPI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=U0VDcd2LXh9I7ONbFZiinsosF+IHw+ygjG5bM29ymGzfqURhZkN9S8gVTLaVRfe9P IOdIj6DH6q4tlTo4mYFM3oz+k6BbyYqRl0c6LZAqiV8/+ZA/qcvznrXxzLGfbi/l42 MX0uW1jGWbButC7+sXn0ALgO6nlTX7sgNzwGhJDgF4gAoGiliKuXhl4PJqHGvjnITz jhPhzilxzHDAIu+4h4YbC4UDqPZpsogzrT75a4D7RSujZ4NLXDLzvZ21NTbyaDcgpx /Btdl3WMOjguy8e2C4+AhFIj1u2g+/n0tbTEQ4Y2CLMyTsam3rteDaA3T2ABHZQ3vY lo8tnJkrBS5KA== 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 v10 31/39] kselftest/arm64: Extend vector configuration API tests to cover SME Date: Wed, 26 Jan 2022 15:27:41 +0000 Message-Id: <20220126152749.233712-32-broonie@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220126152749.233712-1-broonie@kernel.org> References: <20220126152749.233712-1-broonie@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3696; h=from:subject; bh=3il89y80lqKSeBlP8c8K13FChN+0Rfp1qjkKOqCKgPI=; b=owGbwMvMwMWocq27KDak/QLjabUkhsSPGbnm7YHvWwy+bD4wdVubLDN38qUJ8U90fGrV414pJQXt 1DzYyWjMwsDIxSArpsiy9lnGqvRwia3zH81/BTOIlQlkCgMXpwBMpGQD+/+s9F+WIedWstw+IGe/v7 ZF492FKIlXuidYdaSV/Iq6vdhn8QZsPyGk9kV5Ver7Pz5XnNakSm5w0VYvitxneMFlb7rts8P2y/a7 TGhhsJkuWHUjJftJTZKB9bc3jjKWIYs9ayfbuBsq2u6LP8TSKZ3Z/bOZ80b00qPTZF7VXMxXr9sQ/m exuvaett/7vPs0I/lqXhwJ4jv0aHeMmKruvKdvBc8xmPwKsPz14oWuV5ZUCKP7Y+s9y0TaOps9xMRZ lVZ/asgPPt6eXLK5epHbcoO3RutMLv+eyuwQledsrttlfFl5ynYR6/Np3LMsLnkoPLgZ5Hj+4MWj7b k3T568K+r6Z5HU1hLlOK9kkUhmAA== 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)