From patchwork Fri Feb 2 09:51:09 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shunyong Yang X-Patchwork-Id: 10196435 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 42A9860362 for ; Fri, 2 Feb 2018 09:51:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3269E28E02 for ; Fri, 2 Feb 2018 09:51:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 26F3328E2C; Fri, 2 Feb 2018 09:51:31 +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 15E2028E02 for ; Fri, 2 Feb 2018 09:51:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751530AbeBBJv3 (ORCPT ); Fri, 2 Feb 2018 04:51:29 -0500 Received: from mx01.hxt-semitech.com.96.203.223.in-addr.arpa ([223.203.96.7]:57975 "EHLO barracuda.hxt-semitech.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1750799AbeBBJv2 (ORCPT ); Fri, 2 Feb 2018 04:51:28 -0500 X-ASG-Debug-ID: 1517565084-093b7e4cf100210001-v0qrrX Received: from HXTBJIDCEMVIW01.hxtcorp.net (localhost [10.128.0.14]) by barracuda.hxt-semitech.com with ESMTP id Hhlr00jqOiXk0RF4 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 02 Feb 2018 17:51:24 +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; Fri, 2 Feb 2018 17:51:34 +0800 From: Yang Shunyong To: CC: , , , Yang Shunyong , Joey Zheng Subject: [PATCH v3] dmaengine: dmatest: add norandom option Date: Fri, 2 Feb 2018 17:51:09 +0800 X-ASG-Orig-Subj: [PATCH v3] dmaengine: dmatest: add norandom option Message-ID: <1517565069-19769-1-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: HXTBJIDCEMVIW01.hxtcorp.net (10.128.0.14) To HXTBJIDCEMVIW01.hxtcorp.net (10.128.0.14) X-Barracuda-Connect: localhost[10.128.0.14] X-Barracuda-Start-Time: 1517565084 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 0.5114 1.0000 0.7500 X-Barracuda-Spam-Score: 0.75 X-Barracuda-Spam-Status: No, SCORE=0.75 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 3.2.3.47508 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 --- v3: new patch should be octal permissions. 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..b9339524d5bd 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, 0644); +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);