From patchwork Sun Oct 7 06:18:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jerin Jacob X-Patchwork-Id: 46195 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 6E99F2C38; Sun, 7 Oct 2018 08:20:04 +0200 (CEST) Received: from NAM02-SN1-obe.outbound.protection.outlook.com (mail-sn1nam02on0073.outbound.protection.outlook.com [104.47.36.73]) by dpdk.org (Postfix) with ESMTP id 4F64D2C28 for ; Sun, 7 Oct 2018 08:20:03 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=CAVIUMNETWORKS.onmicrosoft.com; s=selector1-cavium-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=SnN7IB8+0dzr1k4HKg1MeZ0eQm0Jtq9kJneCXWMLJaM=; b=fqdMVkSbUoeWG1BLGFLsPVbjknc7dqMy4GDqrU8/XHTRwqjZDj1fkdcqbJ61yHvGrpQFJFMxZ9OpmkDMqDYqy8cjiwM1LkLpapZ2lHtUX1hnNNZLb85NFu/1sNRHfroaNo4Qk9H5PRoLyCpCFyoW2PFGVLQAeOSJ3zNmbz13J4k= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Jerin.JacobKollanukkaran@cavium.com; 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Signed-off-by: Jerin Jacob Acked-by: Chao Zhu --- The reference implementation for Linux's cpu_relax() for ppc64 is at https://elixir.bootlin.com/linux/latest/source/arch/powerpc/include/asm/processor.h#L440 --- lib/librte_eal/common/include/arch/ppc_64/rte_pause.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/lib/librte_eal/common/include/arch/ppc_64/rte_pause.h b/lib/librte_eal/common/include/arch/ppc_64/rte_pause.h index 8bd835764..16e47ce22 100644 --- a/lib/librte_eal/common/include/arch/ppc_64/rte_pause.h +++ b/lib/librte_eal/common/include/arch/ppc_64/rte_pause.h @@ -9,10 +9,17 @@ extern "C" { #endif +#include "rte_atomic.h" + #include "generic/rte_pause.h" static inline void rte_pause(void) { + /* Set hardware multi-threading low priority */ + asm volatile("or 1,1,1"); + /* Set hardware multi-threading medium priority */ + asm volatile("or 2,2,2"); + rte_compiler_barrier(); } #ifdef __cplusplus