From patchwork Tue Aug 8 13:40:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zeng Heng X-Patchwork-Id: 712124 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 45C08C41513 for ; Tue, 8 Aug 2023 18:15:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235372AbjHHSPj (ORCPT ); Tue, 8 Aug 2023 14:15:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59864 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235393AbjHHSPK (ORCPT ); Tue, 8 Aug 2023 14:15:10 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2829472AA for ; Tue, 8 Aug 2023 10:21:26 -0700 (PDT) Received: from kwepemi500024.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RKvSn2M5KzNn1q; Tue, 8 Aug 2023 21:40:09 +0800 (CST) Received: from huawei.com (10.175.103.91) by kwepemi500024.china.huawei.com (7.221.188.100) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Tue, 8 Aug 2023 21:43:36 +0800 From: Zeng Heng To: , , , , CC: , , , Subject: [PATCH v2 2/5] kselftest/arm64: add crc32 feature to hwcap test Date: Tue, 8 Aug 2023 21:40:33 +0800 Message-ID: <20230808134036.668954-3-zengheng4@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230808134036.668954-1-zengheng4@huawei.com> References: <20230808134036.668954-1-zengheng4@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemi500024.china.huawei.com (7.221.188.100) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Add the CRC32 feature check in the set of hwcap tests. Signed-off-by: Zeng Heng --- tools/testing/selftests/arm64/abi/hwcap.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) -- 2.25.1 diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c index ec247587f2bf..70850bdb0e35 100644 --- a/tools/testing/selftests/arm64/abi/hwcap.c +++ b/tools/testing/selftests/arm64/abi/hwcap.c @@ -33,6 +33,11 @@ */ typedef void (*sigill_fn)(void); +static void crc32_sigill(void) +{ + asm volatile("crc32w w0, w0, w1"); +} + static void cssc_sigill(void) { /* CNT x0, x0 */ @@ -233,6 +238,13 @@ static const struct hwcap_data { sigill_fn sigill_fn; bool sigill_reliable; } hwcaps[] = { + { + .name = "CRC32", + .at_hwcap = AT_HWCAP, + .hwcap_bit = HWCAP_CRC32, + .cpuinfo = "crc32", + .sigill_fn = crc32_sigill, + }, { .name = "CSSC", .at_hwcap = AT_HWCAP2,