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// SPDX-License-Identifier: GPL-2.0-only
#include <kunit/test.h>
#include <linux/pgtable.h>
MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");
static void expect_not_active(struct kunit *test)
{
KUNIT_EXPECT_FALSE(test, is_lazy_mmu_mode_active());
}
static void expect_active(struct kunit *test)
{
KUNIT_EXPECT_TRUE(test, is_lazy_mmu_mode_active());
}
static void lazy_mmu_mode_active(struct kunit *test)
{
expect_not_active(test);
lazy_mmu_mode_enable();
expect_active(test);
{
/* Nested section */
lazy_mmu_mode_enable();
expect_active(test);
lazy_mmu_mode_disable();
expect_active(test);
}
{
/* Paused section */
lazy_mmu_mode_pause();
expect_not_active(test);
{
/* No effect (paused) */
lazy_mmu_mode_enable();
expect_not_active(test);
lazy_mmu_mode_disable();
expect_not_active(test);
lazy_mmu_mode_pause();
expect_not_active(test);
lazy_mmu_mode_resume();
expect_not_active(test);
}
lazy_mmu_mode_resume();
expect_active(test);
}
lazy_mmu_mode_disable();
expect_not_active(test);
}
static struct kunit_case lazy_mmu_mode_test_cases[] = {
KUNIT_CASE(lazy_mmu_mode_active),
{}
};
static struct kunit_suite lazy_mmu_mode_test_suite = {
.name = "lazy_mmu_mode",
.test_cases = lazy_mmu_mode_test_cases,
};
kunit_test_suite(lazy_mmu_mode_test_suite);
MODULE_DESCRIPTION("Tests for the lazy MMU mode");
MODULE_LICENSE("GPL");
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