From patchwork Tue Mar 23 07:34:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Yingliang X-Patchwork-Id: 12157071 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=-12.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 B3F53C433C1 for ; Tue, 23 Mar 2021 07:34:02 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 341BA60231 for ; Tue, 23 Mar 2021 07:34:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 341BA60231 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version: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:In-Reply-To:References:List-Owner; bh=nmRRFkL1PfjqSDUSJTnntJT6KzvKfLsZpHQ21AgF95M=; b=iMIBxGX7IrCBHGr4eneXU2b0eU RLnm/6UpC8zW+AKko/QJJ9w401EMts1DfK0xLtZ9e9USbkxulbky9Mz4ESHeakTactscFpE0ZSJ/q I0TXzo5JiYZNPQQzVgItAkE7L7jORTQMDAmPK5frSf9APcd0n5xFmaLiLscYXb+wujmKQqENsWkHV p6dJJzZao60e2QkENPPlKIBc0tsxNNGfiVzaCESumUw4JNKlwlgekWo7bWQHXcTxQckzAi9bS4RMH b91RldNE9Te7+H54QLhYJxSmet9pqAvmMlLiQLFcGOoUjjsJ6zYozDNSKmxbBQNCWtnJvb6Sp6Lam g8DLuVSA==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lObWQ-00E954-H3; Tue, 23 Mar 2021 07:32:14 +0000 Received: from szxga05-in.huawei.com ([45.249.212.191]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lObWA-00E90P-5Z for linux-arm-kernel@lists.infradead.org; Tue, 23 Mar 2021 07:32:01 +0000 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4F4NKW4nn0zNqWn; Tue, 23 Mar 2021 15:29:19 +0800 (CST) Received: from huawei.com (10.175.103.91) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.498.0; Tue, 23 Mar 2021 15:31:39 +0800 From: Yang Yingliang To: , CC: , , , Subject: [PATCH 0/3] arm64: lib: improve copy performance Date: Tue, 23 Mar 2021 15:34:29 +0800 Message-ID: <20210323073432.3422227-1-yangyingliang@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.103.91] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210323_073158_732200_590952A4 X-CRM114-Status: UNSURE ( 6.21 ) 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 This patchset reduce instructions in copy_template.S to improve the performance of copy memory, when size is ge 64 bytes. Yang Yingliang (3): arm64: lib: introduce ldp2/stp2 macro arm64: lib: improve copy performance when size is ge 128 bytes arm64: lib: improve copy performance when size is less than 128 and ge 64 bytes arch/arm64/include/asm/asm-uaccess.h | 16 +++++++++ arch/arm64/lib/copy_from_user.S | 8 +++++ arch/arm64/lib/copy_in_user.S | 8 +++++ arch/arm64/lib/copy_template.S | 54 +++++++++++++++------------- arch/arm64/lib/copy_to_user.S | 8 +++++ arch/arm64/lib/memcpy.S | 8 +++++ 6 files changed, 78 insertions(+), 24 deletions(-)