From patchwork Wed Oct 16 22:58:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Judith Mendez X-Patchwork-Id: 50796 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8D7DD2F7D7 for ; Wed, 16 Oct 2024 22:58:40 +0000 (UTC) Received: from lelv0143.ext.ti.com (lelv0143.ext.ti.com [198.47.23.248]) by mx.groups.io with SMTP id smtpd.web10.36520.1729119511922494970 for ; Wed, 16 Oct 2024 15:58:32 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=B94az+G6; spf=pass (domain: ti.com, ip: 198.47.23.248, mailfrom: jm@ti.com) Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 49GMwUpC047227; Wed, 16 Oct 2024 17:58:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1729119510; bh=lYciV0wK0Bh7HNzX3RPzq0/j2fAwISTayUF2A5W+QmA=; h=From:To:CC:Subject:Date; b=B94az+G62Np0Fccr5OEnsMNDug09n3070oa7FkRj8ajeVpepTDu55ny1eNW3LEngZ TB+YXLQYqEABB9uZnPGL707wA9cY7gA2eTCQscH3gXpHofGavoBIN08AFv3+O1Y+t5 63bv/fjxOoeLz6O+SW58W/aLVavB3iD6EPor1ASQ= Received: from DFLE114.ent.ti.com (dfle114.ent.ti.com [10.64.6.35]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 49GMwU4E023723 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 16 Oct 2024 17:58:30 -0500 Received: from DFLE104.ent.ti.com (10.64.6.25) by DFLE114.ent.ti.com (10.64.6.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Wed, 16 Oct 2024 17:58:30 -0500 Received: from lelvsmtp5.itg.ti.com (10.180.75.250) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Wed, 16 Oct 2024 17:58:30 -0500 Received: from judy-hp.dhcp.ti.com (judy-hp.dhcp.ti.com [128.247.81.105]) by lelvsmtp5.itg.ti.com (8.15.2/8.15.2) with ESMTP id 49GMwUXD036592; Wed, 16 Oct 2024 17:58:30 -0500 From: Judith Mendez To: Ryan Eatmon CC: , Denys Dmytriyenko , Randolph Sapp , Praneeth Bajjuri , Judith Mendez Subject: [meta-ti][kirkstone/scarthgap][RFC PATCH] ti-test: Add hwspinlocktest Date: Wed, 16 Oct 2024 17:58:29 -0500 Message-ID: <20241016225830.3178108-1-jm@ti.com> X-Mailer: git-send-email 2.47.0 MIME-Version: 1.0 X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Oct 2024 22:58:40 -0000 X-Groupsio-URL: https://lists.yoctoproject.org/g/meta-arago/message/15577 Add hwspinlock recipe to build out of tree module hwspinlock test. Signed-off-by: Judith Mendez --- .../recipes-core/packagegroups/ti-test.bb | 1 + .../hwspinlocktest/files/LICENSE | 29 ++ .../hwspinlocktest/files/Makefile | 19 ++ .../files/omap_hwspinlock_test.c | 251 ++++++++++++++++++ .../hwspinlocktest/hwspinlocktest_0.1.bb | 18 ++ 5 files changed, 318 insertions(+) create mode 100644 meta-arago-test/recipes-kernel/hwspinlocktest/files/LICENSE create mode 100644 meta-arago-test/recipes-kernel/hwspinlocktest/files/Makefile create mode 100644 meta-arago-test/recipes-kernel/hwspinlocktest/files/omap_hwspinlock_test.c create mode 100644 meta-arago-test/recipes-kernel/hwspinlocktest/hwspinlocktest_0.1.bb diff --git a/meta-arago-test/recipes-core/packagegroups/ti-test.bb b/meta-arago-test/recipes-core/packagegroups/ti-test.bb index 695bed5c..91ebec44 100644 --- a/meta-arago-test/recipes-core/packagegroups/ti-test.bb +++ b/meta-arago-test/recipes-core/packagegroups/ti-test.bb @@ -17,6 +17,7 @@ TI_TEST_BASE = "\ evtest \ fio \ git \ + hwspinlocktest \ hdparm \ i2c-tools \ iozone3 \ diff --git a/meta-arago-test/recipes-kernel/hwspinlocktest/files/LICENSE b/meta-arago-test/recipes-kernel/hwspinlocktest/files/LICENSE new file mode 100644 index 00000000..f5351a25 --- /dev/null +++ b/meta-arago-test/recipes-kernel/hwspinlocktest/files/LICENSE @@ -0,0 +1,29 @@ +BSD 3-Clause License + +Copyright (c) 2019, Suman Anna +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +3. Neither the name of the copyright holder nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/meta-arago-test/recipes-kernel/hwspinlocktest/files/Makefile b/meta-arago-test/recipes-kernel/hwspinlocktest/files/Makefile new file mode 100644 index 00000000..d8fe76dc --- /dev/null +++ b/meta-arago-test/recipes-kernel/hwspinlocktest/files/Makefile @@ -0,0 +1,19 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +# +# TI OMAP HwSpinlock Unit Test +# + +obj-m := omap_hwspinlock_test.o + +SRC := $(shell pwd) + +all: + $(MAKE) -C $(KERNEL_SRC) M=$(SRC) + +modules_install: + $(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules_install + +clean: + rm -f *.o *~ core .depend .*.cmd *.ko *.mod.c + rm -f Module.markers Module.symvers modules.order + rm -rf .tmp_versions Modules.symvers diff --git a/meta-arago-test/recipes-kernel/hwspinlocktest/files/omap_hwspinlock_test.c b/meta-arago-test/recipes-kernel/hwspinlocktest/files/omap_hwspinlock_test.c new file mode 100644 index 00000000..b1801389 --- /dev/null +++ b/meta-arago-test/recipes-kernel/hwspinlocktest/files/omap_hwspinlock_test.c @@ -0,0 +1,251 @@ +// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +/* + * OMAP hardware spinlock test driver + * + * Copyright (C) 2014-2021 Texas Instruments Incorporated - https://www.ti.com + * Suman Anna + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +/* load-time options */ +static int count = 2; +module_param(count, int, 0444); + +struct hwspinlock_data { + const char *compatible; + const unsigned int max_locks; +}; + +static int hwspin_lock_test(struct hwspinlock *hwlock) +{ + int i; + int ret; + + pr_err("\nTesting lock %d\n", hwspin_lock_get_id(hwlock)); + for (i = 0; i < count; i++) { + ret = hwspin_trylock(hwlock); + if (ret) { + pr_err("%s: Initial lock failed\n", __func__); + return -EFAULT; + } + pr_err("trylock #1 status[%d] = %d\n", i, ret); + + /* Verify lock actually works - re-acquiring it should fail */ + ret = hwspin_trylock(hwlock); + pr_err("trylock #2 status[%d] = %d\n", i, ret); + if (!ret) { + /* Keep locks balanced even in failure cases */ + hwspin_unlock(hwlock); + hwspin_unlock(hwlock); + pr_err("%s: Recursive lock succeeded unexpectedly\n", + __func__); + return -EFAULT; + } + + /* Verify unlock by re-acquiring the lock after releasing it */ + hwspin_unlock(hwlock); + ret = hwspin_trylock(hwlock); + pr_err("trylock after unlock status[%d] = %d\n", i, ret); + if (ret) { + pr_err("%s: Unlock failed\n", __func__); + return -EINVAL; + } + + hwspin_unlock(hwlock); + } + + return 0; +} + +static int hwspin_lock_test_all_locks(unsigned int max_locks) +{ + int i; + int ret = 0, ret1 = 0; + struct hwspinlock *hwlock = NULL; + + pr_err("Testing %d locks\n", max_locks); + for (i = 0; i < max_locks; i++) { + hwlock = hwspin_lock_request_specific(i); + if (!hwlock) { + pr_err("request lock %d failed\n", i); + ret = -EIO; + continue; + } + + ret1 = hwspin_lock_test(hwlock); + if (ret1) { + pr_err("hwspinlock tests failed on lock %d\n", i); + ret = ret1; + goto free_lock; + } + +free_lock: + ret1 = hwspin_lock_free(hwlock); + if (ret1) { + pr_err("hwspin_lock_free failed on lock %d\n", i); + ret = ret1; + } + } + + return ret; +} + +static const struct of_device_id omap_hwspinlock_test_of_match[] = { + { .compatible = "ti,omap-hwspinlock-test", }, + { .compatible = "ti,omap4-hwspinlock-test", }, + { .compatible = "ti,omap5-hwspinlock-test", }, + { .compatible = "ti,dra7-hwspinlock-test", }, + { .compatible = "ti,am33xx-hwspinlock-test", }, + { .compatible = "ti,am43xx-hwspinlock-test", }, + { .compatible = "ti,am654-hwspinlock-test", }, + { /* end */ }, +}; + +static int hwspin_lock_test_all_phandle_locks(unsigned int max_locks) +{ + struct device_node *np = NULL; + struct hwspinlock *hwlock = NULL; + int ret = 0, ret1 = 0; + unsigned int i; + int num_locks; + int hwlock_id; + + np = of_find_matching_node_and_match(NULL, + omap_hwspinlock_test_of_match, + NULL); + if (!np) { + pr_err("\nNo test node provided\n"); + return 0; + } + + num_locks = of_count_phandle_with_args(np, "hwlocks", "#hwlock-cells"); + pr_err("Number of phandles = %d max_locks = %d\n", + num_locks, max_locks); + + for (i = 0; i < num_locks; i++) { + hwlock_id = of_hwspin_lock_get_id(np, i); + if (hwlock_id < 0) { + pr_err("unable to get hwlock_id : %d\n", hwlock_id); + ret = -EINVAL; + continue; + }; + + hwlock = hwspin_lock_request_specific(hwlock_id); + if (!hwlock) { + pr_err("unable to get hwlock\n"); + ret = -EINVAL; + continue; + } + + ret1 = hwspin_lock_test(hwlock); + if (ret1) { + pr_err("hwspinlock test failed on DT lock %d, ret = %d\n", + hwspin_lock_get_id(hwlock), ret1); + ret = ret1; + } + + ret1 = hwspin_lock_free(hwlock); + if (ret1) { + pr_err("hwspin_lock_free failed on lock %d\n", + hwspin_lock_get_id(hwlock)); + ret = ret1; + } + } + + return ret; +} + +static +unsigned int omap_hwspinlock_get_locks(const struct hwspinlock_data *data) +{ + unsigned int locks = 0; + + while (data->compatible) { + if (of_machine_is_compatible(data->compatible)) { + locks = data->max_locks; + break; + } + data++; + } + + return locks; +} + +static const struct of_device_id omap_hwspinlock_of_match[] = { + { .compatible = "ti,omap4-hwspinlock", }, + { .compatible = "ti,am654-hwspinlock", }, + { .compatible = "ti,am64-hwspinlock", }, + { /* end */ }, +}; + +static const struct hwspinlock_data soc_data[] = { + { "ti,omap4", 32, }, + { "ti,omap5", 32, }, + { "ti,dra7", 256, }, + { "ti,am33xx", 128, }, + { "ti,am43", 128, }, + { "ti,am654", 256, }, + { "ti,j721e", 256, }, + { "ti,j7200", 256, }, + { "ti,am642", 256, }, + { "ti,j721s2", 256, }, + { /* sentinel */ }, +}; + +static int omap_hwspinlock_test_init(void) +{ + struct device_node *np; + unsigned int max_locks; + int ret; + + pr_err("\n** HwSpinLock Unit Test Module initiated **\n"); + + max_locks = omap_hwspinlock_get_locks(soc_data); + if (!max_locks) { + pr_err("\nNot a compatible platform\n"); + return -ENODEV; + } + + np = of_find_matching_node_and_match(NULL, omap_hwspinlock_of_match, + NULL); + if (!np || !of_device_is_available(np)) { + pr_err("\nNo HwSpinlock node provided/enabled\n"); + return -ENODEV; + } + + pr_err("\n***** Begin - Test All Locks ****\n"); + ret = hwspin_lock_test_all_locks(max_locks); + if (ret) + pr_err("hwspin_lock_test_all_locks failed, ret = %d\n", ret); + pr_err("\n***** End - Test All Locks ****\n"); + + pr_err("\n***** Begin - Test All pHandle Locks ****\n"); + ret = hwspin_lock_test_all_phandle_locks(max_locks); + if (ret) + pr_err("hwspin_lock_test_all_locks failed, ret = %d\n", ret); + pr_err("\n***** End - Test All pHandle Locks ****\n"); + + return 0; +} + +static void omap_hwspinlock_test_exit(void) +{ + pr_err("\n** HwSpinLock Unit Test Module finished **\n"); +} + +module_init(omap_hwspinlock_test_init); +module_exit(omap_hwspinlock_test_exit); + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_DESCRIPTION("Hardware spinlock Test driver for TI SoCs"); +MODULE_AUTHOR("Suman Anna "); diff --git a/meta-arago-test/recipes-kernel/hwspinlocktest/hwspinlocktest_0.1.bb b/meta-arago-test/recipes-kernel/hwspinlocktest/hwspinlocktest_0.1.bb new file mode 100644 index 00000000..2edd93f6 --- /dev/null +++ b/meta-arago-test/recipes-kernel/hwspinlocktest/hwspinlocktest_0.1.bb @@ -0,0 +1,18 @@ +SUMMARY = "Build hwspinlock test as an external Linux kernel module" +DESCRIPTION = "${SUMMARY}" +LICENSE = "GPL-2.0-only | BSD-3-Clause" +LIC_FILES_CHKSUM = "file://LICENSE;md5=bfa02c83df161e37647ee23a2c7eacd4" + +inherit module + +SRC_URI = "file://Makefile \ + file://omap_hwspinlock_test.c \ + file://LICENSE \ + " + +S = "${WORKDIR}" + +# The inherit of module.bbclass will automatically name module packages with +# "kernel-module-" prefix as required by the oe-core build environment. + +RPROVIDES:${PN} += "kernel-module-hwspinlocktest"