From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id D81C6A04DB; Fri, 16 Oct 2020 14:14:26 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id EA6911ED80; Fri, 16 Oct 2020 14:14:24 +0200 (CEST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by dpdk.org (Postfix) with ESMTP id F2F2E1C22A for ; Fri, 16 Oct 2020 14:14:21 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1602850460; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Y5xbmDmc5CzK4AmKDkzbz1Ft9R6Szc3bhisnJoG93Is=; b=EC945JCdjWfjqEMP0lMp9JFYIYtkqGexQCv9dOmUvskk8i1G7VdTXPdZWLH3UQtxPR1fwB sMEFVzg0wugEtFMERvyoAptUYJEiXJB7XB/f6EZuUmMMhPtbeED5tchoH2inPSSu84KnZk fsdE+syIUdo4SoQJc7Xvi7Xfd7bxKx4= Received: from mail-vk1-f200.google.com (mail-vk1-f200.google.com [209.85.221.200]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-269-cbubWuIZNfSgtfyK2pBtfw-1; Fri, 16 Oct 2020 08:14:18 -0400 X-MC-Unique: cbubWuIZNfSgtfyK2pBtfw-1 Received: by mail-vk1-f200.google.com with SMTP id y18so854024vkd.14 for ; Fri, 16 Oct 2020 05:14:18 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Y5xbmDmc5CzK4AmKDkzbz1Ft9R6Szc3bhisnJoG93Is=; b=mt0ZwnDzpgBbh2qj6Shb8TaEhuFpfZAPiBEm6V/MHH/8fnVv3yGd2dHM/V0tJbqKVo QnzXnvT5x+iIk65L6fBRf+0DUHb2B8lduPplf6L69A5ES1ELEaMxcAyiOnU5/Vb9OZ7N fBkfsFWz+NuWE44PQ3h2BiA21r5mX9q4fJx3vdZ6cyVScOTXOnCX/lgHHZeiMIanZGRG hpNQRPc/KW0r/Z1tXcb2AWMKz00bwUC85orrw2m5/dT5xFGDYeHEtkYANx2LHBN70UQL VGmDgvXHCljbL7qxCzkZU0BLL+LffNtBcyhLT1zOp5SQNpKuN9T1gwHeAkiLHoBWSALp utPg== X-Gm-Message-State: AOAM532CZZqBYlRVWFHD0QREzV72szl11JH2NZYN82EKNyItXL18p8oT wJVXzM18psLQwaqB4teSRpqmm40O6FWUhBmR5dVeFnhKiaWSOlsyo8HYqDc0fsJotLFZ89u3xyq Xd2Fj5E6fOodYPtlh2lo= X-Received: by 2002:a67:68c9:: with SMTP id d192mr1610817vsc.5.1602850458437; Fri, 16 Oct 2020 05:14:18 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxKTCGtUt16oJKrecUomJYZI6TotYomFF5QlIT9wQLOQ0c1KBOmWpTBwpnqPiPPLOof6wGsgMOg2TdrqN8MRyk= X-Received: by 2002:a67:68c9:: with SMTP id d192mr1610808vsc.5.1602850458215; Fri, 16 Oct 2020 05:14:18 -0700 (PDT) MIME-Version: 1.0 References: <1599700614-22809-1-git-send-email-omkar.maslekar@intel.com> <1602804003-9417-1-git-send-email-omkar.maslekar@intel.com> <1602804003-9417-2-git-send-email-omkar.maslekar@intel.com> In-Reply-To: <1602804003-9417-2-git-send-email-omkar.maslekar@intel.com> From: David Marchand Date: Fri, 16 Oct 2020 14:14:05 +0200 Message-ID: To: Omkar Maslekar Cc: dev , Bruce Richardson , Ciara Loftus , David Christensen , Jerin Jacob Kollanukkaran , "Ruifeng Wang (Arm Technology China)" , Honnappa Nagarahalli Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dmarchan@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="UTF-8" Subject: Re: [dpdk-dev] [PATCH v9] eal: add cache-line demote support X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list 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 Fri, Oct 16, 2020 at 8:24 AM Omkar Maslekar wrote: > > rte_cldemote is similar to a prefetch hint - in reverse. cldemote(addr) > enables software to hint to hardware that line is likely to be shared. > Useful in core-to-core communications where cache-line is likely to be > shared. ARM and PPC implementation is provided with NOP and can be added > if any equivalent instructions could be used for implementation on those > architectures. > > Signed-off-by: Omkar Maslekar > Acked-by: Bruce Richardson > Acked-by: David Christensen > Acked-by: Jerin Jacob > Reviewed-by: Ruifeng Wang Applied, thanks Omkar. -- David Marchand