53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/*
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* Copyright (c) 2016 Jean-Paul Etienne <fractalclone@gmail.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <kernel_internal.h>
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#include <zephyr/logging/log.h>
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LOG_MODULE_DECLARE(os, CONFIG_KERNEL_LOG_LEVEL);
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FUNC_NORETURN void z_irq_spurious(const void *unused)
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{
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unsigned long mcause;
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ARG_UNUSED(unused);
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__asm__ volatile("csrr %0, mcause" : "=r" (mcause));
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mcause &= SOC_MCAUSE_EXP_MASK;
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LOG_ERR("Spurious interrupt detected! IRQ: %ld", mcause);
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#if defined(CONFIG_RISCV_HAS_PLIC)
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if (mcause == RISCV_MACHINE_EXT_IRQ) {
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LOG_ERR("PLIC interrupt line causing the IRQ: %d",
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riscv_plic_get_irq());
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}
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#endif
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z_riscv_fatal_error(K_ERR_SPURIOUS_IRQ, NULL);
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}
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#ifdef CONFIG_DYNAMIC_INTERRUPTS
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int arch_irq_connect_dynamic(unsigned int irq, unsigned int priority,
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void (*routine)(const void *parameter),
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const void *parameter, uint32_t flags)
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{
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ARG_UNUSED(flags);
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z_isr_install(irq, routine, parameter);
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#if defined(CONFIG_RISCV_HAS_PLIC)
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if (irq_get_level(irq) == 2) {
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irq = irq_from_level_2(irq);
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riscv_plic_set_priority(irq, priority);
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}
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#else
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ARG_UNUSED(priority);
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#endif
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return irq;
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}
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#endif /* CONFIG_DYNAMIC_INTERRUPTS */
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