1 // SPDX-License-Identifier: LGPL-2.1+
4 #include <linux/cpu.h>
11 #include <kunit/test.h>
44 static int irq_test_setup_fake_irq(struct kunit *test, struct irq_affinity_desc *affd)  in irq_test_setup_fake_irq()  argument
49 	virq = irq_domain_alloc_descs(-1, 1, 0, NUMA_NO_NODE, affd);  in irq_test_setup_fake_irq()
50 	KUNIT_ASSERT_GE(test, virq, 0);  in irq_test_setup_fake_irq()
55 	KUNIT_ASSERT_PTR_NE(test, desc, NULL);  in irq_test_setup_fake_irq()
63 static void irq_disable_depth_test(struct kunit *test)  in irq_disable_depth_test()  argument
68 	virq = irq_test_setup_fake_irq(test, NULL);  in irq_disable_depth_test()
71 	KUNIT_ASSERT_PTR_NE(test, desc, NULL);  in irq_disable_depth_test()
74 	KUNIT_ASSERT_EQ(test, ret, 0);  in irq_disable_depth_test()
76 	KUNIT_EXPECT_EQ(test, desc->depth, 0);  in irq_disable_depth_test()
79 	KUNIT_EXPECT_EQ(test, desc->depth, 1);  in irq_disable_depth_test()
82 	KUNIT_EXPECT_EQ(test, desc->depth, 0);  in irq_disable_depth_test()
87 static void irq_free_disabled_test(struct kunit *test)  in irq_free_disabled_test()  argument
92 	virq = irq_test_setup_fake_irq(test, NULL);  in irq_free_disabled_test()
95 	KUNIT_ASSERT_PTR_NE(test, desc, NULL);  in irq_free_disabled_test()
98 	KUNIT_ASSERT_EQ(test, ret, 0);  in irq_free_disabled_test()
100 	KUNIT_EXPECT_EQ(test, desc->depth, 0);  in irq_free_disabled_test()
103 	KUNIT_EXPECT_EQ(test, desc->depth, 1);  in irq_free_disabled_test()
106 	KUNIT_EXPECT_GE(test, desc->depth, 1);  in irq_free_disabled_test()
109 	KUNIT_ASSERT_EQ(test, ret, 0);  in irq_free_disabled_test()
110 	KUNIT_EXPECT_EQ(test, desc->depth, 0);  in irq_free_disabled_test()
115 static void irq_shutdown_depth_test(struct kunit *test)  in irq_shutdown_depth_test()  argument
126 		kunit_skip(test, "requires CONFIG_SMP for managed shutdown");  in irq_shutdown_depth_test()
128 	virq = irq_test_setup_fake_irq(test, &affinity);  in irq_shutdown_depth_test()
131 	KUNIT_ASSERT_PTR_NE(test, desc, NULL);  in irq_shutdown_depth_test()
134 	KUNIT_ASSERT_PTR_NE(test, data, NULL);  in irq_shutdown_depth_test()
137 	KUNIT_ASSERT_EQ(test, ret, 0);  in irq_shutdown_depth_test()
139 	KUNIT_EXPECT_TRUE(test, irqd_is_activated(data));  in irq_shutdown_depth_test()
140 	KUNIT_EXPECT_TRUE(test, irqd_is_started(data));  in irq_shutdown_depth_test()
141 	KUNIT_EXPECT_TRUE(test, irqd_affinity_is_managed(data));  in irq_shutdown_depth_test()
143 	KUNIT_EXPECT_EQ(test, desc->depth, 0);  in irq_shutdown_depth_test()
146 	KUNIT_EXPECT_EQ(test, desc->depth, 1);  in irq_shutdown_depth_test()
148 	scoped_guard(raw_spinlock_irqsave, &desc->lock)  in irq_shutdown_depth_test()
151 	KUNIT_EXPECT_FALSE(test, irqd_is_activated(data));  in irq_shutdown_depth_test()
152 	KUNIT_EXPECT_FALSE(test, irqd_is_started(data));  in irq_shutdown_depth_test()
154 	KUNIT_EXPECT_EQ(test, irq_activate(desc), 0);  in irq_shutdown_depth_test()
159 	KUNIT_EXPECT_EQ(test, desc->depth, 1);  in irq_shutdown_depth_test()
162 	KUNIT_EXPECT_EQ(test, desc->depth, 0);  in irq_shutdown_depth_test()
167 static void irq_cpuhotplug_test(struct kunit *test)  in irq_cpuhotplug_test()  argument
177 		kunit_skip(test, "requires CONFIG_SMP for CPU hotplug");  in irq_cpuhotplug_test()
179 		kunit_skip(test, "requires more than 1 CPU for CPU hotplug");  in irq_cpuhotplug_test()
181 		kunit_skip(test, "CPU 1 must be hotpluggable");  in irq_cpuhotplug_test()
183 		kunit_skip(test, "CPU 1 must be online");  in irq_cpuhotplug_test()
187 	virq = irq_test_setup_fake_irq(test, &affinity);  in irq_cpuhotplug_test()
190 	KUNIT_ASSERT_PTR_NE(test, desc, NULL);  in irq_cpuhotplug_test()
193 	KUNIT_ASSERT_PTR_NE(test, data, NULL);  in irq_cpuhotplug_test()
196 	KUNIT_ASSERT_EQ(test, ret, 0);  in irq_cpuhotplug_test()
198 	KUNIT_EXPECT_TRUE(test, irqd_is_activated(data));  in irq_cpuhotplug_test()
199 	KUNIT_EXPECT_TRUE(test, irqd_is_started(data));  in irq_cpuhotplug_test()
200 	KUNIT_EXPECT_TRUE(test, irqd_affinity_is_managed(data));  in irq_cpuhotplug_test()
202 	KUNIT_EXPECT_EQ(test, desc->depth, 0);  in irq_cpuhotplug_test()
205 	KUNIT_EXPECT_EQ(test, desc->depth, 1);  in irq_cpuhotplug_test()
207 	KUNIT_EXPECT_EQ(test, remove_cpu(1), 0);  in irq_cpuhotplug_test()
208 	KUNIT_EXPECT_GE(test, desc->depth, 1);  in irq_cpuhotplug_test()
209 	KUNIT_EXPECT_EQ(test, add_cpu(1), 0);  in irq_cpuhotplug_test()
211 	KUNIT_EXPECT_EQ(test, desc->depth, 1);  in irq_cpuhotplug_test()
214 	KUNIT_EXPECT_TRUE(test, irqd_is_activated(data));  in irq_cpuhotplug_test()
215 	KUNIT_EXPECT_TRUE(test, irqd_is_started(data));  in irq_cpuhotplug_test()
216 	KUNIT_EXPECT_EQ(test, desc->depth, 0);  in irq_cpuhotplug_test()
235 MODULE_DESCRIPTION("IRQ unit test suite");