| /* |
| * Copyright (c) 2016 Jean-Paul Etienne <fractalclone@gmail.com> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/kernel.h> |
| #include <kernel_internal.h> |
| #include <zephyr/logging/log.h> |
| #include <zephyr/arch/riscv/csr.h> |
| #include <zephyr/irq_multilevel.h> |
| |
| #ifdef CONFIG_RISCV_HAS_PLIC |
| #include <zephyr/drivers/interrupt_controller/riscv_plic.h> |
| #endif |
| |
| LOG_MODULE_DECLARE(os, CONFIG_KERNEL_LOG_LEVEL); |
| |
| FUNC_NORETURN void z_irq_spurious(const void *unused) |
| { |
| unsigned long mcause; |
| |
| ARG_UNUSED(unused); |
| |
| mcause = csr_read(mcause); |
| |
| mcause &= CONFIG_RISCV_MCAUSE_EXCEPTION_MASK; |
| |
| LOG_ERR("Spurious interrupt detected! IRQ: %ld", mcause); |
| #if defined(CONFIG_RISCV_HAS_PLIC) |
| if (mcause == RISCV_IRQ_MEXT) { |
| unsigned int save_irq = riscv_plic_get_irq(); |
| const struct device *save_dev = riscv_plic_get_dev(); |
| |
| LOG_ERR("PLIC interrupt line causing the IRQ: %d (%p)", save_irq, save_dev); |
| } |
| #endif |
| z_riscv_fatal_error(K_ERR_SPURIOUS_IRQ, NULL); |
| } |
| |
| #ifdef CONFIG_DYNAMIC_INTERRUPTS |
| int arch_irq_connect_dynamic(unsigned int irq, unsigned int priority, |
| void (*routine)(const void *parameter), |
| const void *parameter, uint32_t flags) |
| { |
| z_isr_install(irq, routine, parameter); |
| |
| #if defined(CONFIG_RISCV_HAS_PLIC) || defined(CONFIG_RISCV_HAS_CLIC) |
| z_riscv_irq_priority_set(irq, priority, flags); |
| #else |
| ARG_UNUSED(flags); |
| ARG_UNUSED(priority); |
| #endif |
| return irq; |
| } |
| #endif /* CONFIG_DYNAMIC_INTERRUPTS */ |