rt-thread-official/libcpu/risc-v/virt64/interrupt.h

/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2021-05-20     bigmagic      The first version
 */

#ifndef INTERRUPT_H__
#define INTERRUPT_H__

#define MAX_HANDLERS 128

#include <rthw.h>
#include "stack.h"

enum
{
    EP_INSTRUCTION_ADDRESS_MISALIGNED = 0,
    EP_INSTRUCTION_ACCESS_FAULT,
    EP_ILLEGAL_INSTRUCTION,
    EP_BREAKPOINT,
    EP_LOAD_ADDRESS_MISALIGNED,
    EP_LOAD_ACCESS_FAULT,
    EP_STORE_ADDRESS_MISALIGNED,
    EP_STORE_ACCESS_FAULT,
    EP_ENVIRONMENT_CALL_U_MODE,
    EP_ENVIRONMENT_CALL_S_MODE,
    EP_RESERVED10,
    EP_ENVIRONMENT_CALL_M_MODE,
    EP_INSTRUCTION_PAGE_FAULT, /* page attr */
    EP_LOAD_PAGE_FAULT,        /* read data */
    EP_RESERVED14,
    EP_STORE_PAGE_FAULT, /* write data */
};

int rt_hw_plic_irq_enable(int irq_number);
int rt_hw_plic_irq_disable(int irq_number);
void rt_hw_interrupt_init(void);
void rt_hw_interrupt_mask(int vector);
rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler, void *param, const char *name);
void handle_trap(rt_size_t xcause, rt_size_t xtval, rt_size_t xepc, struct rt_hw_stack_frame *sp);

#endif