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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id m18sm9820686wrw.43.2021.01.21.11.06.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Jan 2021 11:06:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=MgUOZVXgTuq+ewB882N1Uysmr2goe72Go52/tWAmfH4=; b=Y11OzRdJGKxQNZokVvT7EEd/YMEtfNqxfPCkKaDdsIWPQYvm5tVmRbf3V5AJd9NcLh VqMhDz8M3SvuMP5Ts6uBvhVyniaJ6hKiLJTxf8b1VY3ci0KfLmNubK25xS0gzSoCzXJJ rKbha/8+Ev6QUeesyjzxx4M+X1TK4kHq1v0f9DltHYeh9dBZtZDPuTP2Dg1y99HiVyjh hnwEZSBznbftF79j8GHSjFrUhos02/5nOY/8zm+SrE8gSue5Htc4AFxqJB18Qo3H85eD mmcKWppHT3DLWQgYs507NZKql06enx5VDJUzhvUwPXb5WilI78j+6giAxCUQcJjJgVG+ 3N4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=MgUOZVXgTuq+ewB882N1Uysmr2goe72Go52/tWAmfH4=; b=o1pdf3LR4t5TqDF23s2IJv488RZf8Lnl+K5+G/Nen/7qDRAYdKcN1RzpBVA2A668lD zKVm3j02kc/cLXAb6TcLf5h5NHgNJf8SV4PbwjxSOC89x5XchyaaMwAtsLSC4tPgbe7k BZtptAO8YrDBho0fFUgrptL5AkheyKfJWmJ2IRZJbQuT+jO2dUvUk1DjaC0o0Q80N6GC X6204jCV9UBrXJ7XFxajPuUN66Wuij0ek9Rl1tu0iO9CGDKdWdz511RzjEwYXVDdPNyn wuaTMisjtG+yRfbx0zuKS99Y3QU2TqN78dzpSwVADlX4JMka4tS7Ct0IyxsyN1jV97dY BGqg== X-Gm-Message-State: AOAM533FX8uYGUrATIWa3d3YUg5+bN5o6/o7pJs6lWVNMvTUucqS3+9Q zNpHR7u76MXsJMmrXc+jm1rlUA== X-Google-Smtp-Source: ABdhPJyriSVaahPFM0phiZOSE7vZXJq2nUAapisczNOLJ/rLvuHgGK3g0woNMkJ8wI1evmR6JYpZNQ== X-Received: by 2002:a5d:6204:: with SMTP id y4mr940444wru.48.1611255990430; Thu, 21 Jan 2021 11:06:30 -0800 (PST) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH 05/25] tests: Add a simple test of the CMSDK APB dual timer Date: Thu, 21 Jan 2021 19:06:02 +0000 Message-Id: <20210121190622.22000-6-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210121190622.22000-1-peter.maydell@linaro.org> References: <20210121190622.22000-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::42e; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x42e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Damien Hedde , Luc Michel , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Add a simple test of the CMSDK dual timer, since we're about to do some refactoring of how it is clocked. Signed-off-by: Peter Maydell --- tests/qtest/cmsdk-apb-dualtimer-test.c | 131 +++++++++++++++++++++++++ MAINTAINERS | 1 + tests/qtest/meson.build | 1 + 3 files changed, 133 insertions(+) create mode 100644 tests/qtest/cmsdk-apb-dualtimer-test.c diff --git a/tests/qtest/cmsdk-apb-dualtimer-test.c b/tests/qtest/cmsdk-apb= -dualtimer-test.c new file mode 100644 index 00000000000..5a29d65fd6d --- /dev/null +++ b/tests/qtest/cmsdk-apb-dualtimer-test.c @@ -0,0 +1,131 @@ +/* + * QTest testcase for the CMSDK APB dualtimer device + * + * Copyright (c) 2021 Linaro Limited + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WIT= HOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "qemu/osdep.h" +#include "libqtest-single.h" + +/* IoTKit/ARMSSE dualtimer; driven at 25MHz in mps2-an385, so 40ns per tic= k */ +#define TIMER_BASE 0x40002000 + +#define TIMER1LOAD 0 +#define TIMER1VALUE 4 +#define TIMER1CONTROL 8 +#define TIMER1INTCLR 0xc +#define TIMER1RIS 0x10 +#define TIMER1MIS 0x14 +#define TIMER1BGLOAD 0x18 + +#define TIMER2LOAD 0x20 +#define TIMER2VALUE 0x24 +#define TIMER2CONTROL 0x28 +#define TIMER2INTCLR 0x2c +#define TIMER2RIS 0x30 +#define TIMER2MIS 0x34 +#define TIMER2BGLOAD 0x38 + +#define CTRL_ENABLE (1 << 7) +#define CTRL_PERIODIC (1 << 6) +#define CTRL_INTEN (1 << 5) +#define CTRL_PRESCALE_1 (0 << 2) +#define CTRL_PRESCALE_16 (1 << 2) +#define CTRL_PRESCALE_256 (2 << 2) +#define CTRL_32BIT (1 << 1) +#define CTRL_ONESHOT (1 << 0) + +static void test_dualtimer(void) +{ + g_assert_true(readl(TIMER_BASE + TIMER1RIS) =3D=3D 0); + + /* Start timer: will fire after 40000 ns */ + writel(TIMER_BASE + TIMER1LOAD, 1000); + /* enable in free-running, wrapping, interrupt mode */ + writel(TIMER_BASE + TIMER1CONTROL, CTRL_ENABLE | CTRL_INTEN); + + /* Step to just past the 500th tick and check VALUE */ + clock_step(20001); + g_assert_cmpuint(readl(TIMER_BASE + TIMER1RIS), =3D=3D, 0); + g_assert_cmpuint(readl(TIMER_BASE + TIMER1VALUE), =3D=3D, 500); + + /* Just past the 1000th tick: timer should have fired */ + clock_step(20000); + g_assert_cmpuint(readl(TIMER_BASE + TIMER1RIS), =3D=3D, 1); + g_assert_cmpuint(readl(TIMER_BASE + TIMER1VALUE), =3D=3D, 0); + + /* + * We are in free-running wrapping 16-bit mode, so on the following + * tick VALUE should have wrapped round to 0xffff. + */ + clock_step(40); + g_assert_cmpuint(readl(TIMER_BASE + TIMER1VALUE), =3D=3D, 0xffff); + + /* Check that any write to INTCLR clears interrupt */ + writel(TIMER_BASE + TIMER1INTCLR, 1); + g_assert_cmpuint(readl(TIMER_BASE + TIMER1RIS), =3D=3D, 0); + + /* Turn off the timer */ + writel(TIMER_BASE + TIMER1CONTROL, 0); +} + +static void test_prescale(void) +{ + g_assert_true(readl(TIMER_BASE + TIMER2RIS) =3D=3D 0); + + /* Start timer: will fire after 40 * 256 * 1000 =3D=3D 1024000 ns */ + writel(TIMER_BASE + TIMER2LOAD, 1000); + /* enable in periodic, wrapping, interrupt mode, prescale 256 */ + writel(TIMER_BASE + TIMER2CONTROL, + CTRL_ENABLE | CTRL_INTEN | CTRL_PERIODIC | CTRL_PRESCALE_256); + + /* Step to just past the 500th tick and check VALUE */ + clock_step(40 * 256 * 501); + g_assert_cmpuint(readl(TIMER_BASE + TIMER2RIS), =3D=3D, 0); + g_assert_cmpuint(readl(TIMER_BASE + TIMER2VALUE), =3D=3D, 500); + + /* Just past the 1000th tick: timer should have fired */ + clock_step(40 * 256 * 500); + g_assert_cmpuint(readl(TIMER_BASE + TIMER2RIS), =3D=3D, 1); + g_assert_cmpuint(readl(TIMER_BASE + TIMER2VALUE), =3D=3D, 0); + + /* In periodic mode the tick VALUE now reloads */ + clock_step(256); + g_assert_cmpuint(readl(TIMER_BASE + TIMER2VALUE), =3D=3D, 1000); + + /* Check that any write to INTCLR clears interrupt */ + writel(TIMER_BASE + TIMER2INTCLR, 1); + g_assert_cmpuint(readl(TIMER_BASE + TIMER2RIS), =3D=3D, 0); + + /* Turn off the timer */ + writel(TIMER_BASE + TIMER2CONTROL, 0); +} + +int main(int argc, char **argv) +{ + QTestState *s; + int r; + + g_test_init(&argc, &argv, NULL); + + s =3D qtest_start("-machine mps2-an385"); + + qtest_add_func("/cmsdk-apb-dualtimer/dualtimer", test_dualtimer); + qtest_add_func("/cmsdk-apb-dualtimer/prescale", test_prescale); + + r =3D g_test_run(); + + qtest_end(); + + return r; +} diff --git a/MAINTAINERS b/MAINTAINERS index 58956497888..118f70e47fb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -584,6 +584,7 @@ F: include/hw/timer/cmsdk-apb-timer.h F: tests/qtest/cmsdk-apb-timer-test.c F: hw/timer/cmsdk-apb-dualtimer.c F: include/hw/timer/cmsdk-apb-dualtimer.h +F: tests/qtest/cmsdk-apb-dualtimer-test.c F: hw/char/cmsdk-apb-uart.c F: include/hw/char/cmsdk-apb-uart.h F: hw/watchdog/cmsdk-apb-watchdog.c diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index 9e2ebc47041..69dd4a8547c 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -141,6 +141,7 @@ qtests_npcm7xx =3D \ 'npcm7xx_timer-test', 'npcm7xx_watchdog_timer-test'] qtests_arm =3D \ + (config_all_devices.has_key('CONFIG_CMSDK_APB_DUALTIMER') ? ['cmsdk-apb-= dualtimer-test'] : []) + \ (config_all_devices.has_key('CONFIG_CMSDK_APB_TIMER') ? ['cmsdk-apb-time= r-test'] : []) + \ (config_all_devices.has_key('CONFIG_CMSDK_APB_WATCHDOG') ? ['cmsdk-apb-w= atchdog-test'] : []) + \ (config_all_devices.has_key('CONFIG_PFLASH_CFI02') ? ['pflash-cfi02-test= '] : []) + \ --=20 2.20.1