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: 13346078 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5FCD6C04A6A for ; Tue, 8 Aug 2023 13:44:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=YgyQfE0twQRVEBRWu5e/qQGejsJIyFG2QLejhManELA=; b=j82LTmpH1JfXAt xEnsNMzBDjMCh4oDPiui0vNkaFLymTs07KlOY9a5BAXCcLHWyJPc7Pu9dqYOTHArEhA9Mz2AI+7gD /k0IHcfSxLxuP0YLIWADdQl/QEW/Zy9LIdoqDbml9k0mccjLQXATcyW6HiLqzydoC1L6V8/9c2iMJ /oxDbEJgAtZKb36OZTuLU9KbHliSFyNDwdKmUW2fAJ2wFz0bqr3Ve0qI8kW9LcrcK0egWggALEUTt XCWGJ3eGbAgXIYDshHPZKJ3Tb285GUv8Ahcyrf+Yuhl5an40IgTxOn2zkdodaxU2BYWWQNmWiUH3o RATj2vXDcYcu1H3eTD5g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qTN04-002gCd-0f; Tue, 08 Aug 2023 13:43:52 +0000 Received: from szxga02-in.huawei.com ([45.249.212.188]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qTMzt-002g8X-2l for linux-arm-kernel@lists.infradead.org; Tue, 08 Aug 2023 13:43:44 +0000 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230808_064342_085544_44EEF557 X-CRM114-Status: UNSURE ( 9.43 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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,