From patchwork Wed Jan 31 08:56:39 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shunyong Yang X-Patchwork-Id: 10193559 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 54AD4603EE for ; Wed, 31 Jan 2018 08:58:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4BFB828474 for ; Wed, 31 Jan 2018 08:58:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 405CF284BD; Wed, 31 Jan 2018 08:58:32 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1593F28474 for ; Wed, 31 Jan 2018 08:58:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752360AbeAaI6a (ORCPT ); Wed, 31 Jan 2018 03:58:30 -0500 Received: from mx01.hxt-semitech.com.96.203.223.in-addr.arpa ([223.203.96.7]:40714 "EHLO barracuda.hxt-semitech.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751728AbeAaI63 (ORCPT ); Wed, 31 Jan 2018 03:58:29 -0500 X-ASG-Debug-ID: 1517389106-093b7e06e818930001-v0qrrX Received: from HXTBJIDCEMVIW01.hxtcorp.net (localhost [10.128.0.14]) by barracuda.hxt-semitech.com with ESMTP id wf1hCyazpOOTxUNT (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 31 Jan 2018 16:58:26 +0800 (CST) X-Barracuda-Envelope-From: shunyong.yang@hxt-semitech.com Received: from y.localdomain (10.5.21.109) by HXTBJIDCEMVIW01.hxtcorp.net (10.128.0.14) with Microsoft SMTP Server (TLS) id 15.0.847.32; Wed, 31 Jan 2018 16:58:35 +0800 From: Yang Shunyong To: CC: , , , Yang Shunyong , Joey Zheng Subject: [PATCH v2] dmaengine: dmatest: add norandom option Date: Wed, 31 Jan 2018 16:56:39 +0800 X-ASG-Orig-Subj: [PATCH v2] dmaengine: dmatest: add norandom option Message-ID: <1517388999-15399-1-git-send-email-shunyong.yang@hxt-semitech.com> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 X-Originating-IP: [10.5.21.109] X-ClientProxiedBy: HXTBJIDCEMVIW02.hxtcorp.net (10.128.0.15) To HXTBJIDCEMVIW01.hxtcorp.net (10.128.0.14) X-Barracuda-Connect: localhost[10.128.0.14] X-Barracuda-Start-Time: 1517389106 X-Barracuda-Encrypted: ECDHE-RSA-AES256-SHA X-Barracuda-URL: https://192.168.50.101:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at hxt-semitech.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Bayes: INNOCENT GLOBAL 0.4753 1.0000 0.0000 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=9.0 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.47444 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Existing option noverify disables both random src/dst address offset setup and data verification. Sometimes, we need to control random src/dst address setup and verification separately, such as disabling random to make sure that test covers addresses in all interleaving banks, but data verification is still performed. This patch adds option norandom to disable random offset setup. Option noverify has been changed to disable data verification only. Cc: Joey Zheng Signed-off-by: Yang Shunyong --- v2: change to symbolic permissions. --- drivers/dma/dmatest.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index 80cc2be6483c..e5e39f8131ab 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -74,7 +74,11 @@ static bool noverify; module_param(noverify, bool, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(noverify, "Disable random data setup and verification"); +MODULE_PARM_DESC(noverify, "Disable data verification (default: verify)"); + +static bool norandom; +module_param(norandom, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(norandom, "Disable random offset setup (default: random)"); static bool verbose; module_param(verbose, bool, S_IRUGO | S_IWUSR); @@ -103,6 +107,7 @@ struct dmatest_params { unsigned int pq_sources; int timeout; bool noverify; + bool norandom; }; /** @@ -575,7 +580,7 @@ static int dmatest_func(void *data) break; } - if (params->noverify) + if (params->norandom) len = params->buf_size; else len = dmatest_random() % params->buf_size + 1; @@ -586,17 +591,19 @@ static int dmatest_func(void *data) total_len += len; - if (params->noverify) { + if (params->norandom) { src_off = 0; dst_off = 0; } else { - start = ktime_get(); src_off = dmatest_random() % (params->buf_size - len + 1); dst_off = dmatest_random() % (params->buf_size - len + 1); src_off = (src_off >> align) << align; dst_off = (dst_off >> align) << align; + } + if (!params->noverify) { + start = ktime_get(); dmatest_init_srcs(thread->srcs, src_off, len, params->buf_size, is_memset); dmatest_init_dsts(thread->dsts, dst_off, len, @@ -975,6 +982,7 @@ static void run_threaded_test(struct dmatest_info *info) params->pq_sources = pq_sources; params->timeout = timeout; params->noverify = noverify; + params->norandom = norandom; request_channels(info, DMA_MEMCPY); request_channels(info, DMA_MEMSET);