From patchwork Fri Sep 22 08:25:33 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gowrishankar X-Patchwork-Id: 29086 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 D24431B160; Fri, 22 Sep 2017 10:25:54 +0200 (CEST) Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by dpdk.org (Postfix) with ESMTP id 3B702199A9 for ; Fri, 22 Sep 2017 10:25:53 +0200 (CEST) Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v8M8O0kO004519 for ; Fri, 22 Sep 2017 04:25:52 -0400 Received: from e23smtp08.au.ibm.com (e23smtp08.au.ibm.com [202.81.31.141]) by mx0b-001b2d01.pphosted.com with ESMTP id 2d4pnhs0a1-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Fri, 22 Sep 2017 04:25:52 -0400 Received: from localhost by e23smtp08.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 22 Sep 2017 18:25:47 +1000 Received: from d23relay06.au.ibm.com (202.81.31.225) by e23smtp08.au.ibm.com (202.81.31.205) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Fri, 22 Sep 2017 18:25:45 +1000 Received: from d23av03.au.ibm.com (d23av03.au.ibm.com [9.190.234.97]) by d23relay06.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v8M8Pi8N32309448 for ; Fri, 22 Sep 2017 18:25:44 +1000 Received: from d23av03.au.ibm.com (localhost [127.0.0.1]) by d23av03.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v8M8Pb6D009588 for ; Fri, 22 Sep 2017 18:25:37 +1000 Received: from chozha.in.ibm.com ([9.109.223.99]) by d23av03.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id v8M8PUBu009424; Fri, 22 Sep 2017 18:25:34 +1000 From: Gowrishankar To: dev@dpdk.org Cc: Chao Zhu , Bruce Richardson , Konstantin Ananyev , Jerin Jacob , viktorin@rehivetech.com, jianbo.liu@linaro.org Date: Fri, 22 Sep 2017 13:55:33 +0530 X-Mailer: git-send-email 1.9.1 In-Reply-To: References: In-Reply-To: References: X-TM-AS-MML: disable x-cbid: 17092208-0048-0000-0000-0000025D9F06 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17092208-0049-0000-0000-000048147CC1 Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-09-22_02:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000 definitions=main-1709220117 Subject: [dpdk-dev] [PATCH v2 1/5] eal/x86: define architecture specific rdtsc hz 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" From: Jerin Jacob CC: Bruce Richardson CC: Konstantin Ananyev Signed-off-by: Jerin Jacob Acked-by: Anatoly Burakov --- lib/librte_eal/common/include/arch/x86/rte_cycles.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/lib/librte_eal/common/include/arch/x86/rte_cycles.h b/lib/librte_eal/common/include/arch/x86/rte_cycles.h index 1bb3e1d..e2661e2 100644 --- a/lib/librte_eal/common/include/arch/x86/rte_cycles.h +++ b/lib/librte_eal/common/include/arch/x86/rte_cycles.h @@ -77,6 +77,19 @@ return tsc.tsc_64; } +/** + * Get the number of rdtsc cycles in one second if the architecture supports. + * + * @return + * The number of rdtsc cycles in one second. Return zero if the architecture + * support is not available. + */ +static inline uint64_t +rte_rdtsc_arch_hz(void) +{ + return 0; +} + static inline uint64_t rte_rdtsc_precise(void) {