From patchwork Fri Oct 23 14:17:08 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Hunt, David" X-Patchwork-Id: 7944 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 8DE758D8C; Fri, 23 Oct 2015 16:17:43 +0200 (CEST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id 99FB35A65 for ; Fri, 23 Oct 2015 16:17:40 +0200 (CEST) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 23 Oct 2015 07:17:41 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,186,1444719600"; d="scan'208";a="833886521" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by fmsmga002.fm.intel.com with ESMTP; 23 Oct 2015 07:17:38 -0700 Received: from sivswdev02.ir.intel.com (sivswdev02.ir.intel.com [10.237.217.46]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id t9NEHcKw002489; Fri, 23 Oct 2015 15:17:38 +0100 Received: from sivswdev02.ir.intel.com (localhost [127.0.0.1]) by sivswdev02.ir.intel.com with ESMTP id t9NEHcE3017741; Fri, 23 Oct 2015 15:17:38 +0100 Received: (from dhunt5@localhost) by sivswdev02.ir.intel.com with id t9NEHcJ0017737; Fri, 23 Oct 2015 15:17:38 +0100 From: David Hunt To: dev@dpdk.org Date: Fri, 23 Oct 2015 15:17:08 +0100 Message-Id: <1445609833-17649-7-git-send-email-david.hunt@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1445609833-17649-1-git-send-email-david.hunt@intel.com> References: <1445609833-17649-1-git-send-email-david.hunt@intel.com> Cc: Benjamin Boren Subject: [dpdk-dev] [PATCH 06/11] lib: add armv8 rte_prefetch.h X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Benjamin Boren Signed-off-by: Benjamin Boren Signed-off-by: David Hunt --- .../common/include/arch/arm64/rte_prefetch.h | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 lib/librte_eal/common/include/arch/arm64/rte_prefetch.h diff --git a/lib/librte_eal/common/include/arch/arm64/rte_prefetch.h b/lib/librte_eal/common/include/arch/arm64/rte_prefetch.h new file mode 100644 index 0000000..b0d9170 --- /dev/null +++ b/lib/librte_eal/common/include/arch/arm64/rte_prefetch.h @@ -0,0 +1,61 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2015 Intel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _RTE_PREFETCH_ARM_64_H_ +#define _RTE_PREFETCH_ARM_64_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "generic/rte_prefetch.h" +/* May want to add PSTL1KEEP instructions for prefetch for ownership. */ +static inline void rte_prefetch0(const volatile void *p) +{ + asm volatile ("PRFM PLDL1KEEP, [%0]" : : "r" (p)); +} + +static inline void rte_prefetch1(const volatile void *p) +{ + asm volatile ("PRFM PLDL2KEEP, [%0]" : : "r" (p)); +} + +static inline void rte_prefetch2(const volatile void *p) +{ + asm volatile ("PRFM PLDL3KEEP, [%0]" : : "r" (p)); +} + +#ifdef __cplusplus +} +#endif + +#endif /* _RTE_PREFETCH_ARM_64_H_ */