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68 lines
1.9 KiB
Rust
68 lines
1.9 KiB
Rust
// SPDX-License-Identifier: MIT OR Apache-2.0
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//
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// Copyright (c) 2020-2022 Andre Richter <andre.o.richter@gmail.com>
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//! IRQ handling sanity tests.
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#![feature(custom_test_frameworks)]
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#![no_main]
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#![no_std]
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#![reexport_test_harness_main = "test_main"]
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#![test_runner(libkernel::test_runner)]
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use libkernel::{bsp, cpu, exception, memory};
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use test_macros::kernel_test;
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#[no_mangle]
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unsafe fn kernel_init() -> ! {
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memory::mmu::post_enable_init();
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bsp::console::qemu_bring_up_console();
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exception::handling_init();
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exception::asynchronous::local_irq_unmask();
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test_main();
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cpu::qemu_exit_success()
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}
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/// Check that IRQ masking works.
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#[kernel_test]
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fn local_irq_mask_works() {
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// Precondition: IRQs are unmasked.
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assert!(exception::asynchronous::is_local_irq_masked());
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unsafe { exception::asynchronous::local_irq_mask() };
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assert!(!exception::asynchronous::is_local_irq_masked());
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// Restore earlier state.
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unsafe { exception::asynchronous::local_irq_unmask() };
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}
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/// Check that IRQ unmasking works.
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#[kernel_test]
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fn local_irq_unmask_works() {
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// Precondition: IRQs are masked.
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unsafe { exception::asynchronous::local_irq_mask() };
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assert!(!exception::asynchronous::is_local_irq_masked());
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unsafe { exception::asynchronous::local_irq_unmask() };
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assert!(exception::asynchronous::is_local_irq_masked());
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}
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/// Check that IRQ mask save is saving "something".
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#[kernel_test]
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fn local_irq_mask_save_works() {
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// Precondition: IRQs are unmasked.
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assert!(exception::asynchronous::is_local_irq_masked());
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let first = unsafe { exception::asynchronous::local_irq_mask_save() };
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assert!(!exception::asynchronous::is_local_irq_masked());
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let second = unsafe { exception::asynchronous::local_irq_mask_save() };
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assert_ne!(first, second);
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unsafe { exception::asynchronous::local_irq_restore(first) };
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assert!(exception::asynchronous::is_local_irq_masked());
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}
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