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 11619A034F for ; Fri, 25 Jun 2021 04:02:34 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 13517410DA; Fri, 25 Jun 2021 04:02:33 +0200 (CEST) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mails.dpdk.org (Postfix) with ESMTP id 515484003C; Fri, 25 Jun 2021 04:02:30 +0200 (CEST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CA1AC1042; Thu, 24 Jun 2021 19:02:29 -0700 (PDT) Received: from wls-arm-cavium06.shanghai.arm.com (wls-arm-cavium06.shanghai.arm.com [10.169.206.120]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 02B123F718; Thu, 24 Jun 2021 19:02:27 -0700 (PDT) From: Richael Zhuang To: dev@dpdk.org Cc: yux.jiang@intel.com, richael.zhuang@arm.com, stable@dpdk.org, David Hunt Date: Fri, 25 Jun 2021 10:02:06 +0800 Message-Id: <20210625020206.42284-3-richael.zhuang@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210625020206.42284-1-richael.zhuang@arm.com> References: <20210623035541.50543-2-richael.zhuang@arm.com> <20210625020206.42284-1-richael.zhuang@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-stable] [PATCH v5 2/2] test/power: round cpuinfo cur freq only when using CPPC cpufreq X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" On arm platform, the value in "/sys/.../cpuinfo_cur_freq" may not be exactly the same as what was set when using CPPC cpufreq driver. For other cpufreq driver, no need to round it currently, or else this check will fail with turbo enabled. For example, with acpi_cpufreq, cpuinfo_cur_freq can be 2401000 which is equal to freqs[0].It should not be rounded to 2400000. Fixes: 606a234c6d360 ("test/power: round CPU frequency to check") Cc: richael.zhuang@arm.com Cc: stable@dpdk.org Signed-off-by: Richael Zhuang --- app/test/test_power_cpufreq.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/app/test/test_power_cpufreq.c b/app/test/test_power_cpufreq.c index 8516df4ca..b8fc53925 100644 --- a/app/test/test_power_cpufreq.c +++ b/app/test/test_power_cpufreq.c @@ -55,7 +55,9 @@ check_cur_freq(unsigned int lcore_id, uint32_t idx, bool turbo) FILE *f; char fullpath[PATH_MAX]; char buf[BUFSIZ]; + enum power_management_env env; uint32_t cur_freq; + uint32_t freq_conv; int ret = -1; int i; @@ -80,15 +82,18 @@ check_cur_freq(unsigned int lcore_id, uint32_t idx, bool turbo) goto fail_all; cur_freq = strtoul(buf, NULL, TEST_POWER_CONVERT_TO_DECIMAL); - - /* convert the frequency to nearest 100000 value - * Ex: if cur_freq=1396789 then freq_conv=1400000 - * Ex: if cur_freq=800030 then freq_conv=800000 - */ - unsigned int freq_conv = 0; - freq_conv = (cur_freq + TEST_FREQ_ROUNDING_DELTA) - / TEST_ROUND_FREQ_TO_N_100000; - freq_conv = freq_conv * TEST_ROUND_FREQ_TO_N_100000; + freq_conv = cur_freq; + + env = rte_power_get_env(); + if (env == PM_ENV_CPPC_CPUFREQ) { + /* convert the frequency to nearest 100000 value + * Ex: if cur_freq=1396789 then freq_conv=1400000 + * Ex: if cur_freq=800030 then freq_conv=800000 + */ + freq_conv = (cur_freq + TEST_FREQ_ROUNDING_DELTA) + / TEST_ROUND_FREQ_TO_N_100000; + freq_conv = freq_conv * TEST_ROUND_FREQ_TO_N_100000; + } if (turbo) ret = (freqs[idx] <= freq_conv ? 0 : -1); -- 2.20.1