From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19159C4151A for ; Tue, 5 Feb 2019 14:20:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D8409217F9 for ; Tue, 5 Feb 2019 14:20:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=armh.onmicrosoft.com header.i=@armh.onmicrosoft.com header.b="NE1YuUJM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729075AbfBEOUL (ORCPT ); Tue, 5 Feb 2019 09:20:11 -0500 Received: from mail-eopbgr20075.outbound.protection.outlook.com ([40.107.2.75]:22565 "EHLO EUR02-VE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728856AbfBEOUJ (ORCPT ); Tue, 5 Feb 2019 09:20:09 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector1-arm-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=gIsb79aiv9IJt7DmEt9fTFmQAfmlJ/kKBQuI9E2Ewmk=; b=NE1YuUJMHGFghO9hki8RA5WitT10eoiYRWTs8Zyf1S/tt81QdrYn0v+BKW/EGq1+t43ccpIq6CZZyH6bBIzN8HhIkdxWUw0HpJnEcIvazQjusKMke0vrWN8NZuuOHDfRrIN3MkOVFVHc+6w4c9TLPOnPbT/HVWvMPfmEFhUmPUA= Received: from VI1PR0802MB2528.eurprd08.prod.outlook.com (10.175.20.142) by VI1PR0802MB2158.eurprd08.prod.outlook.com (10.172.12.15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1601.17; Tue, 5 Feb 2019 14:20:07 +0000 Received: from VI1PR0802MB2528.eurprd08.prod.outlook.com ([fe80::7446:fa53:3f15:c96c]) by VI1PR0802MB2528.eurprd08.prod.outlook.com ([fe80::7446:fa53:3f15:c96c%4]) with mapi id 15.20.1580.019; Tue, 5 Feb 2019 14:20:07 +0000 From: Dave Rodgman To: "linux-kernel@vger.kernel.org" , Matt Sealey , Dave Rodgman , "davem@davemloft.net" , "gregkh@linuxfoundation.org" , "herbert@gondor.apana.org.au" , "markus@oberhumer.com" , "minchan@kernel.org" , "nitingupta910@gmail.com" , "rpurdie@openedhand.com" , "sergey.senozhatsky.work@gmail.com" , "sonnyrao@google.com" , "akpm@linux-foundation.org" , "sfr@canb.auug.org.au" CC: nd Subject: [PATCH v5 2/3] lib/lzo: 64-bit CTZ on arm64 Thread-Topic: [PATCH v5 2/3] lib/lzo: 64-bit CTZ on arm64 Thread-Index: AQHUvV3k9gwJmF7oCEOTje49k0Z4Fg== Date: Tue, 5 Feb 2019 14:20:07 +0000 Message-ID: <20190205141950.9058-3-dave.rodgman@arm.com> References: <20190205141950.9058-1-dave.rodgman@arm.com> In-Reply-To: <20190205141950.9058-1-dave.rodgman@arm.com> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.17.1 x-originating-ip: [217.140.106.52] x-clientproxiedby: LNXP265CA0081.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:76::21) To VI1PR0802MB2528.eurprd08.prod.outlook.com (2603:10a6:800:b0::14) authentication-results: spf=none (sender IP is ) smtp.mailfrom=dave.rodgman@arm.com; x-ms-exchange-messagesentrepresentingtype: 1 x-arm-no-footer: FoSSMail x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;VI1PR0802MB2158;6:LzjxyxKW81HyEsWY3f0U+fXC7ozHt38V8ugwIQhTQJvIBYOklXHIZ5NaSCxCQBukabXY1c+kCEsrzI9Vz2te0yhdwhO9l7dyMpH90MkuIKzAjOtG73sSxndOgBh4Y6Cagd84eaZVEqIsT0GqhRUdNxefimUuRhhXjvl+KTlc6TOT6czjMTXEtolWsSFdqzlB5I18HISHmoidE3KrC/lw6CBssts1rPUh0P7ex4K1B1CxA/r2J2GzTSIbWYsCW8PT6OjCywwMNd8gQby63aAE74UsV+PuUMyYbFyqKRdwi3P24ALhfKeHpjBrrXdigilAzGTt9MGyeQgWKFzpGQN7m338/WhqlR61rBq0tYN+IKV2GEDVXBJHLuuZ6V+hER0BKji+S0mqu8NWltkeGxnUEuk9exSkB6XK9B1oqDfYr5SI0sloMlZtmJEEceruU0yM3ljK/J8KTkOVjMGR3qwKlg==;5:SjvjUetVQE7c3yTrIJD8oLVZxyQjWi+SENHPO8j2x3nf4XsuGtEbmk0mMhUSKGoECpe1fE5vPPT4niv58/evyZw9O20v48xRRpSDh33rkZcp+hR7xCnfubeimXNQKqRXXdpApWo50A5QfcpHJKoh3EGJsYUTkZnAo/v5b0wkLPIusSwh/cR48K8BbjZl3+TkupaoIZu3Dnmasa3IonA3/A==;7:iHLkSFxW17ytLZCHA1GZz4x2rXs4Vz4zChl0lwDqATz9mwqypYWm71IpZyzTQH0war1JGsUyQvCkf6uzEfGEEQjH+FlySE8HUiWcz0/J7RX4dT2kcQlVcmf7QV9GZq+S0/jBu+Mu9F2GjdLABAwskg== x-ms-office365-filtering-correlation-id: ce7fe8ac-92fc-4888-2413-08d68b750736 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600110)(711020)(4605077)(4618075)(2017052603328)(7153060)(7193020);SRVR:VI1PR0802MB2158; x-ms-traffictypediagnostic: VI1PR0802MB2158: nodisclaimer: True x-microsoft-antispam-prvs: x-forefront-prvs: 0939529DE2 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(366004)(396003)(136003)(346002)(376002)(39860400002)(189003)(199004)(476003)(486006)(8676002)(76176011)(2616005)(1076003)(25786009)(11346002)(446003)(68736007)(44832011)(71200400001)(53936002)(71190400001)(52116002)(316002)(2906002)(478600001)(26005)(6512007)(110136005)(102836004)(106356001)(4326008)(105586002)(86362001)(50226002)(36756003)(2201001)(6306002)(186003)(386003)(81156014)(81166006)(66066001)(7416002)(6506007)(14444005)(256004)(6116002)(3846002)(7736002)(966005)(14454004)(8936002)(2501003)(6486002)(99286004)(6436002)(305945005)(97736004)(921003)(1121003);DIR:OUT;SFP:1101;SCL:1;SRVR:VI1PR0802MB2158;H:VI1PR0802MB2528.eurprd08.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; received-spf: None (protection.outlook.com: arm.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: ULgzlbie8pbO43D2sFQl7TSOkr7OcBcGAaDUDF7d+HOBYsPEJOgZZTXTuQA8eVmFZTAZGwyHTkqtVT1a/WFw0HmHKVBhC1ZtVV4MnKg9JXo0YM6utn4K8cZcCBV3+ANcPv0b6TtsAF83kTiFHYx+jINAf8MvsuvJRYSpTXr52+WtJe6M9aRbHnH8+AfuL288E42E0ryMIJq7cjB1IOo2M5TXZkx7TOtjilThO1PKt4e8pAgrMf7tPhosVxu/4x4a4lzX+f3l1kNdyC2J8byON5tNTVMSXq9/qv/ekUYO4j1DqVV3k/hb49LW81qoWq1+khzqg6VywxFtZDt6bF+fuKDz3CnvrTL09XIdS1x5UrmhOfMWjzmevJJT/HzOihPh34p41CTJiUHfL09ssVo7p3RjoIyJivNhmklWxZJ06BM= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-Network-Message-Id: ce7fe8ac-92fc-4888-2413-08d68b750736 X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Feb 2019 14:20:06.3042 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0802MB2158 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Matt Sealey LZO leaves some performance on the table by not realising that arm64 can optimize count-trailing-zeros bit operations. Add CONFIG_ARM64 to the checked definitions alongside CONFIG_X86_64 to enable the use of rbit/clz instructions on full 64-bit quantities. Link: http://lkml.kernel.org/r/20181127161913.23863-5-dave.rodgman@arm.com Signed-off-by: Matt Sealey Signed-off-by: Dave Rodgman Cc: David S. Miller Cc: Greg Kroah-Hartman Cc: Herbert Xu Cc: Markus F.X.J. Oberhumer Cc: Minchan Kim Cc: Nitin Gupta Cc: Richard Purdie Cc: Sergey Senozhatsky Cc: Sonny Rao Signed-off-by: Andrew Morton Signed-off-by: Stephen Rothwell --- lib/lzo/lzodefs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/lzo/lzodefs.h b/lib/lzo/lzodefs.h index 497f9c9f03a8..00d1080155e4 100644 --- a/lib/lzo/lzodefs.h +++ b/lib/lzo/lzodefs.h @@ -25,7 +25,7 @@ =20 #if defined(__BIG_ENDIAN) && defined(__LITTLE_ENDIAN) #error "conflicting endian definitions" -#elif defined(CONFIG_X86_64) +#elif defined(CONFIG_X86_64) || defined(CONFIG_ARM64) #define LZO_USE_CTZ64 1 #define LZO_USE_CTZ32 1 #elif defined(CONFIG_X86) || defined(CONFIG_PPC) --=20 2.17.1