From nobody Tue Nov 18 16:55:14 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1611257022; cv=none; d=zohomail.com; s=zohoarc; b=dF0UPcq9J4F4pQaDwsvi0F2z1lX4Q5ItJmyyYBdDDoFkhqapxxClR1UKzEx0fZWZQ0fGKM/JqMTccK6CAazXckJ7LyvIqie8Rjvf6AuWfJaqnkF09vviOmfgc4TKNDvHORi0poqs9vDhK5zILhTSqBElZworMPS/cA/nTw8oGAI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1611257022; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=TB7wjfajbIvKGvglJefMlToUTk7cmyyxw+srKxsN0iM=; b=GExT9lQENEbebtAjSWdhYtvrWMsnjL09413COKM61UqIqHIKCgEb581PXSQ5nVhlAfgY+YbqpUneC6A7k56CZCJ7B3KBRD7ghyQ+ax3YlaywUgXXeRCzsDjcl2gUlBY7COzO3Kls6BLVXx5c3hORhk0utVYsmcGBeNvfGYBjBwo= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1611257022136519.2664163756652; Thu, 21 Jan 2021 11:23:42 -0800 (PST) Received: from localhost ([::1]:33970 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l2fYT-0000Tv-3c for importer@patchew.org; Thu, 21 Jan 2021 14:23:41 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:55684) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l2fID-0002ID-0A for qemu-devel@nongnu.org; Thu, 21 Jan 2021 14:06:54 -0500 Received: from mail-wr1-x433.google.com ([2a00:1450:4864:20::433]:32897) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1l2fHu-0005ml-Fz for qemu-devel@nongnu.org; Thu, 21 Jan 2021 14:06:50 -0500 Received: by mail-wr1-x433.google.com with SMTP id 7so2830971wrz.0 for ; Thu, 21 Jan 2021 11:06:30 -0800 (PST) Received: from orth.archaic.org.uk (orth.archaic.org.uk. [81.2.115.148]) by smtp.gmail.com with ESMTPSA id m18sm9820686wrw.43.2021.01.21.11.06.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Jan 2021 11:06:28 -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=TB7wjfajbIvKGvglJefMlToUTk7cmyyxw+srKxsN0iM=; b=tG46E8L4NhWAz79VmzTFQli25+44SF+SEEPyDCObVfykbsivI3dQzc+yyaK5dkpgpX 1QiPeanvfPTyI1K0E5v57PSSIbxhvEwb09Z1aSTjnwIyhfhOYSCSb2QZDorfq3YsCjGw zojMo4+fQF88bx72fZMLfCJ+9OgGPBVJwjCT1jU9GOFum0yj0TNsz42oY7ghRM83+vvB yPpISmsPO2DF9aXpB4aUbOuIhvf6pH8m+UdtG2rSI+8uXeQs613FTTa0Xb96Unxnlm2o vOfr4yR3MNchPQiBeO8+tHil4nYEq4fjnCBIOCEL8ZzRW5agHddZ4UJBapIM0Jx0H5Xe UAyg== 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=TB7wjfajbIvKGvglJefMlToUTk7cmyyxw+srKxsN0iM=; b=p76KQxmzaD8uKLmnDD0vA9OfJ9oQnpOAxPynOhc1gIiq2k8DGERPr80szV9W4AUewB 7xK5f/z49P3eE383gdhCKEDCTV+4j/s6UkvIJjcwRXJKwVo3KWJM9gKJmWxDWovGqVf1 Dj+MC6PyT9nJrdRcPzir6gkHO5BSk+OkaIlOUEA+8Ms9z2wklOOlhnhaMJH8rkvu7SvG zSei/9pGRVSr1sIj4Axo1/ltcZi1yA7wlmSD8MApWWi80dVfNElVT2MzqZn6RNE5wM4N BudYOOTmuQfb5WLfIPZxpdrbYWbacWxeUNhAdsG6ED0DRe6DUJSn1x+kLm5lTkttPAF3 ThBg== X-Gm-Message-State: AOAM530HxLlttELkA9g58xf1krz5EKKUWXmDTqyK5l9w2KreFq/O3kMB bUFBkZaJ29nvGFwUlQk1TjFhGA== X-Google-Smtp-Source: ABdhPJw6OAW6z6R0PwKdv2TRpmORVWal62iEh4QvR5SvmUf9G/bzdjWpF7811EK/CKj595+XhtSX6w== X-Received: by 2002:adf:dc89:: with SMTP id r9mr932065wrj.52.1611255989324; Thu, 21 Jan 2021 11:06:29 -0800 (PST) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH 04/25] tests: Add a simple test of the CMSDK APB watchdog Date: Thu, 21 Jan 2021 19:06:01 +0000 Message-Id: <20210121190622.22000-5-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::433; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x433.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 watchdog, since we're about to do some refactoring of how it is clocked. Signed-off-by: Peter Maydell Reviewed-by: Luc Michel Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- tests/qtest/cmsdk-apb-watchdog-test.c | 80 +++++++++++++++++++++++++++ MAINTAINERS | 1 + tests/qtest/meson.build | 1 + 3 files changed, 82 insertions(+) create mode 100644 tests/qtest/cmsdk-apb-watchdog-test.c diff --git a/tests/qtest/cmsdk-apb-watchdog-test.c b/tests/qtest/cmsdk-apb-= watchdog-test.c new file mode 100644 index 00000000000..c6add1fee85 --- /dev/null +++ b/tests/qtest/cmsdk-apb-watchdog-test.c @@ -0,0 +1,80 @@ +/* + * QTest testcase for the CMSDK APB watchdog 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" + +/* + * lm3s811evb watchdog; at board startup this runs at 200MHz / 16 =3D=3D 1= 2.5MHz, + * which is 80ns per tick. + */ +#define WDOG_BASE 0x40000000 + +#define WDOGLOAD 0 +#define WDOGVALUE 4 +#define WDOGCONTROL 8 +#define WDOGINTCLR 0xc +#define WDOGRIS 0x10 +#define WDOGMIS 0x14 +#define WDOGLOCK 0xc00 + +static void test_watchdog(void) +{ + g_assert_cmpuint(readl(WDOG_BASE + WDOGRIS), =3D=3D, 0); + + writel(WDOG_BASE + WDOGCONTROL, 1); + writel(WDOG_BASE + WDOGLOAD, 1000); + + /* Step to just past the 500th tick */ + clock_step(500 * 80 + 1); + g_assert_cmpuint(readl(WDOG_BASE + WDOGRIS), =3D=3D, 0); + g_assert_cmpuint(readl(WDOG_BASE + WDOGVALUE), =3D=3D, 500); + + /* Just past the 1000th tick: timer should have fired */ + clock_step(500 * 80); + g_assert_cmpuint(readl(WDOG_BASE + WDOGRIS), =3D=3D, 1); + g_assert_cmpuint(readl(WDOG_BASE + WDOGVALUE), =3D=3D, 0); + + /* VALUE reloads at following tick */ + clock_step(80); + g_assert_cmpuint(readl(WDOG_BASE + WDOGVALUE), =3D=3D, 1000); + + /* Writing any value to WDOGINTCLR clears the interrupt and reloads */ + clock_step(500 * 80); + g_assert_cmpuint(readl(WDOG_BASE + WDOGVALUE), =3D=3D, 500); + g_assert_cmpuint(readl(WDOG_BASE + WDOGRIS), =3D=3D, 1); + writel(WDOG_BASE + WDOGINTCLR, 0); + g_assert_cmpuint(readl(WDOG_BASE + WDOGVALUE), =3D=3D, 1000); + g_assert_cmpuint(readl(WDOG_BASE + WDOGRIS), =3D=3D, 0); +} + +int main(int argc, char **argv) +{ + QTestState *s; + int r; + + g_test_init(&argc, &argv, NULL); + + s =3D qtest_start("-machine lm3s811evb"); + + qtest_add_func("/cmsdk-apb-watchdog/watchdog", test_watchdog); + + r =3D g_test_run(); + + qtest_end(); + + return r; +} diff --git a/MAINTAINERS b/MAINTAINERS index 010405b0884..58956497888 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -588,6 +588,7 @@ F: hw/char/cmsdk-apb-uart.c F: include/hw/char/cmsdk-apb-uart.h F: hw/watchdog/cmsdk-apb-watchdog.c F: include/hw/watchdog/cmsdk-apb-watchdog.h +F: tests/qtest/cmsdk-apb-watchdog-test.c F: hw/misc/tz-ppc.c F: include/hw/misc/tz-ppc.h F: hw/misc/tz-mpc.c diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index 74addd74868..9e2ebc47041 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -142,6 +142,7 @@ qtests_npcm7xx =3D \ 'npcm7xx_watchdog_timer-test'] qtests_arm =3D \ (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= '] : []) + \ (config_all_devices.has_key('CONFIG_NPCM7XX') ? qtests_npcm7xx : []) + \ ['arm-cpu-features', --=20 2.20.1