From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jianbo Liu Subject: Re: [PATCH v2 3/6] eal/arm64: rte pause implementation for arm64 Date: Tue, 6 Jun 2017 09:36:23 +0800 Message-ID: References: <20170511101046.26456-1-jerin.jacob@caviumnetworks.com> <20170605085843.16696-1-jerin.jacob@caviumnetworks.com> <20170605085843.16696-3-jerin.jacob@caviumnetworks.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Cc: dev@dpdk.org, thomas@monjalon.net, Bruce Richardson To: Jerin Jacob Return-path: Received: from mail-yw0-f174.google.com (mail-yw0-f174.google.com [209.85.161.174]) by dpdk.org (Postfix) with ESMTP id 731DD7CB5 for ; Tue, 6 Jun 2017 03:36:24 +0200 (CEST) Received: by mail-yw0-f174.google.com with SMTP id 141so442356ywe.2 for ; Mon, 05 Jun 2017 18:36:24 -0700 (PDT) In-Reply-To: <20170605085843.16696-3-jerin.jacob@caviumnetworks.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 5 June 2017 at 16:58, Jerin Jacob wrote: > CC: Jianbo Liu > Signed-off-by: Jerin Jacob > --- > v2: > - Removed YEILD instruction comment, as it is an implementation specific(Jianbo) > --- > lib/librte_eal/common/include/arch/arm/rte_pause.h | 4 ++ > .../common/include/arch/arm/rte_pause_64.h | 52 ++++++++++++++++++++++ > 2 files changed, 56 insertions(+) > create mode 100644 lib/librte_eal/common/include/arch/arm/rte_pause_64.h > > diff --git a/lib/librte_eal/common/include/arch/arm/rte_pause.h b/lib/librte_eal/common/include/arch/arm/rte_pause.h > index 0fe88aba9..9b79405e6 100644 > --- a/lib/librte_eal/common/include/arch/arm/rte_pause.h > +++ b/lib/librte_eal/common/include/arch/arm/rte_pause.h > @@ -37,7 +37,11 @@ > extern "C" { > #endif > > +#ifdef RTE_ARCH_64 > +#include > +#else > #include > +#endif > > #ifdef __cplusplus > } > diff --git a/lib/librte_eal/common/include/arch/arm/rte_pause_64.h b/lib/librte_eal/common/include/arch/arm/rte_pause_64.h > new file mode 100644 > index 000000000..4101553e2 > --- /dev/null > +++ b/lib/librte_eal/common/include/arch/arm/rte_pause_64.h > @@ -0,0 +1,52 @@ > +/* > + * BSD LICENSE > + * > + * Copyright(c) 2017 Cavium. 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 Cavium 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_PAUSE_ARM64_H_ > +#define _RTE_PAUSE_ARM64_H_ > + > +#ifdef __cplusplus > +extern "C" { > +#endif > + > +#include > +#include "generic/rte_pause.h" > + > +static inline void rte_pause(void) > +{ > + asm volatile("yield" ::: "memory"); > +} > + > +#ifdef __cplusplus > +} > +#endif > + > +#endif /* _RTE_PAUSE_ARM64_H_ */ > -- > 2.13.0 > Acked-by: Jianbo Liu