From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id AA305A0542; Mon, 6 Jun 2022 15:18:22 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 103A8427F3; Mon, 6 Jun 2022 15:18:15 +0200 (CEST) Received: from loongson.cn (mail.loongson.cn [114.242.206.163]) by mails.dpdk.org (Postfix) with ESMTP id E1EA140A81 for ; Mon, 6 Jun 2022 15:18:11 +0200 (CEST) Received: from localhost.localdomain (unknown [10.2.5.185]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9BxieTe_J1imxwXAA--.64917S6; Mon, 06 Jun 2022 21:10:59 +0800 (CST) From: Min Zhou To: thomas@monjalon.net, david.marchand@redhat.com, bruce.richardson@intel.com, anatoly.burakov@intel.com, qiming.yang@intel.com, Yuying.Zhang@intel.com, jgrajcia@cisco.com, konstantin.v.ananyev@yandex.ru Cc: dev@dpdk.org, maobibo@loongson.cn Subject: [v3 04/24] eal/loongarch: add prefetch operations for LoongArch Date: Mon, 6 Jun 2022 21:10:34 +0800 Message-Id: <20220606131054.2097526-5-zhoumin@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220606131054.2097526-1-zhoumin@loongson.cn> References: <20220606131054.2097526-1-zhoumin@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: AQAAf9BxieTe_J1imxwXAA--.64917S6 X-Coremail-Antispam: 1UD129KBjvJXoW7Ar4kAry8WF4rurWxuw4xXrb_yoW8WFyDpF WDCr45Wa17Gry2ka9xJr4Fgw13Jwna9a42qrZ7Gw18JFnFq34xtrn7Kr9FyFW3G348GryY 9rsxua95WF1Uu3DanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnUUvcSsGvfC2KfnxnUUI43ZEXa7xR_UUUUUUUUU== X-CM-SenderInfo: 52kr3ztlq6z05rqj20fqof0/ X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org This patch adds architecture specific prefetch operations for LoongArch architecture. Signed-off-by: Min Zhou --- lib/eal/loongarch/include/rte_prefetch.h | 47 ++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 lib/eal/loongarch/include/rte_prefetch.h diff --git a/lib/eal/loongarch/include/rte_prefetch.h b/lib/eal/loongarch/include/rte_prefetch.h new file mode 100644 index 0000000000..0fd9262ea8 --- /dev/null +++ b/lib/eal/loongarch/include/rte_prefetch.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2022 Loongson Technology Corporation Limited + */ + +#ifndef _RTE_PREFETCH_LOONGARCH_H_ +#define _RTE_PREFETCH_LOONGARCH_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include +#include "generic/rte_prefetch.h" + +static inline void rte_prefetch0(const volatile void *p) +{ + __builtin_prefetch((const void *)(uintptr_t)p, 0, 3); +} + +static inline void rte_prefetch1(const volatile void *p) +{ + __builtin_prefetch((const void *)(uintptr_t)p, 0, 2); +} + +static inline void rte_prefetch2(const volatile void *p) +{ + __builtin_prefetch((const void *)(uintptr_t)p, 0, 1); +} + +static inline void rte_prefetch_non_temporal(const volatile void *p) +{ + /* non-temporal version not available, fallback to rte_prefetch0 */ + rte_prefetch0(p); +} + +__rte_experimental +static inline void +rte_cldemote(const volatile void *p) +{ + RTE_SET_USED(p); +} + +#ifdef __cplusplus +} +#endif + +#endif /* _RTE_PREFETCH_LOONGARCH_H_ */ -- 2.31.1