From patchwork Sat Oct 31 01:19:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Timothy McDaniel X-Patchwork-Id: 83095 Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 0BECCA04E6; Sat, 31 Oct 2020 02:18:53 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 93F74C8F6; Sat, 31 Oct 2020 02:18:00 +0100 (CET) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id 80BD1C86E for ; Sat, 31 Oct 2020 02:17:54 +0100 (CET) IronPort-SDR: RFRcO1VY/o5QIZNL783eTqN9maqzwJ/skFVaHso7fNDtVCOG+CXvtjhyV02BA1K0pBzipnyvKz ASP2F2p1I81w== X-IronPort-AV: E=McAfee;i="6000,8403,9790"; a="148542957" X-IronPort-AV: E=Sophos;i="5.77,435,1596524400"; d="scan'208";a="148542957" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Oct 2020 18:17:53 -0700 IronPort-SDR: jhLXhTWNy8Ujhwxs6GbLiEMYrGTYQG5AjlYdOdYgiBG68XetSSivQDk2RaJdznU32XuvOGRJsZ gG8qhfChyTsA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,435,1596524400"; d="scan'208";a="527300677" Received: from txasoft-yocto.an.intel.com ([10.123.72.192]) by fmsmga005.fm.intel.com with ESMTP; 30 Oct 2020 18:17:53 -0700 From: Timothy McDaniel To: Cc: dev@dpdk.org, erik.g.carrillo@intel.com, gage.eads@intel.com, harry.van.haaren@intel.com, jerinj@marvell.com, thomas@monjalon.net Date: Fri, 30 Oct 2020 20:19:17 -0500 Message-Id: <1604107175-25423-6-git-send-email-timothy.mcdaniel@intel.com> X-Mailer: git-send-email 1.7.10 In-Reply-To: <1604107175-25423-1-git-send-email-timothy.mcdaniel@intel.com> References: <20200612212434.6852-2-timothy.mcdaniel@intel.com> <1604107175-25423-1-git-send-email-timothy.mcdaniel@intel.com> Subject: [dpdk-dev] [PATCH v12 05/23] event/dlb: add inline functions 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" Add miscellaneous inline functions that may be called from multiple files. These functions include inline assembly of new x86 instructions, such as movdir64b, since they are not available as builtin functions in the minimum supported GCC version. Signed-off-by: Timothy McDaniel Reviewed-by: Gage Eads --- drivers/event/dlb/dlb_inline_fns.h | 59 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 drivers/event/dlb/dlb_inline_fns.h diff --git a/drivers/event/dlb/dlb_inline_fns.h b/drivers/event/dlb/dlb_inline_fns.h new file mode 100644 index 0000000..82edbb2 --- /dev/null +++ b/drivers/event/dlb/dlb_inline_fns.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2016-2020 Intel Corporation + */ + +#include "rte_memcpy.h" +#include "rte_io.h" + +/* Inline functions required in more than one source file. */ + +static inline struct dlb_eventdev * +dlb_pmd_priv(const struct rte_eventdev *eventdev) +{ + return eventdev->data->dev_private; +} + +static inline void +dlb_umonitor(volatile void *addr) +{ + asm volatile(".byte 0xf3, 0x0f, 0xae, 0xf7\t\n" + : + : "D" (addr)); +} + +static inline void +dlb_umwait(int state, uint64_t timeout) +{ + uint32_t eax = timeout & UINT32_MAX; + uint32_t edx = timeout >> 32; + + asm volatile(".byte 0xf2, 0x0f, 0xae, 0xf7\t\n" + : + : "D" (state), "a" (eax), "d" (edx)); +} + +static inline void +dlb_movntdq_single(void *dest, void *src) +{ + long long *_src = (long long *)src; + __m128i src_data0 = (__m128i){_src[0], _src[1]}; + + _mm_stream_si128(dest, src_data0); +} + +static inline void +dlb_cldemote(void *addr) +{ + /* Load addr into RSI, then demote the cache line of the address + * contained in that register. + */ + asm volatile(".byte 0x0f, 0x1c, 0x06" :: "S" (addr)); +} + +static inline void +dlb_movdir64b(void *dest, void *src) +{ + asm volatile(".byte 0x66, 0x0f, 0x38, 0xf8, 0x02" + : + : "a" (dest), "d" (src)); +}