/*
   RISC-V machine interrupts.
   SPDX-License-Identifier: Unlicense

   https://five-embeddev.com/

*/

#ifndef RISCV_TRAPS_H
#define RISCV_TRAPS_H

enum
{
    RISCV_INT_MSI = 3,
    RISCV_INT_MTI = 7,
    RISCV_INT_MEI = 11,
    RISCV_INT_SSI = 1,
    RISCV_INT_STI = 5,
    RISCV_INT_SEI = 9,
    RISCV_INT_USI = 0,
    RISCV_INT_UTI = 4,
    RISCV_INT_UEI = 8,
};

enum
{
    RISCV_INT_POS_MSI = 3,
    RISCV_INT_POS_MTI = 7,
    RISCV_INT_POS_MEI = 11,
    RISCV_INT_POS_SSI = 1,
    RISCV_INT_POS_STI = 5,
    RISCV_INT_POS_SEI = 9,
    RISCV_INT_POS_USI = 0,
    RISCV_INT_POS_UTI = 4,
    RISCV_INT_POS_UEI = 8,
};

enum
{
    RISCV_INT_MASK_MSI = (1UL << RISCV_INT_POS_MSI),
    RISCV_INT_MASK_MTI = (1UL << RISCV_INT_POS_MTI),
    RISCV_INT_MASK_MEI = (1UL << RISCV_INT_POS_MEI),
    RISCV_INT_MASK_SSI = (1UL << RISCV_INT_POS_SSI),
    RISCV_INT_MASK_STI = (1UL << RISCV_INT_POS_STI),
    RISCV_INT_MASK_SEI = (1UL << RISCV_INT_POS_SEI),
    RISCV_INT_MASK_USI = (1UL << RISCV_INT_POS_USI),
    RISCV_INT_MASK_UTI = (1UL << RISCV_INT_POS_UTI),
    RISCV_INT_MASK_UEI = (1UL << RISCV_INT_POS_UEI),
};

enum
{
    RISCV_EXCP_INSTRUCTION_ADDRESS_MISALIGNED = 0,  /* Instruction address misaligned */
    RISCV_EXCP_INSTRUCTION_ACCESS_FAULT       = 1,  /* Instruction access fault	*/
    RISCV_EXCP_ILLEGAL_INSTRUCTION            = 2,  /* Illegal instruction */
    RISCV_EXCP_BREAKPOINT                     = 3,  /* Breakpoint */
    RISCV_EXCP_LOAD_ADDRESS_MISALIGNED        = 4,  /* Load address misaligned */
    RISCV_EXCP_LOAD_ACCESS_FAULT              = 5,  /* Load access fault */
    RISCV_EXCP_STORE_AMO_ADDRESS_MISALIGNED   = 6,  /* Store/AMO address misaligned	 */
    RISCV_EXCP_STORE_AMO_ACCESS_FAULT         = 7,  /* Store/AMO access fault */
    RISCV_EXCP_ENVIRONMENT_CALL_FROM_U_MODE   = 8,  /* Environment call from U-mode	*/
    RISCV_EXCP_ENVIRONMENT_CALL_FROM_S_MODE   = 9,  /* Environment call from S-mode	*/
    RISCV_EXCP_RESERVED10                     = 10, /* Reserved	*/
    RISCV_EXCP_ENVIRONMENT_CALL_FROM_M_MODE   = 11, /* Environment call from M-mode	*/
    RISCV_EXCP_INSTRUCTION_PAGE_FAULT         = 12, /* Instruction page fault */
    RISCV_EXCP_LOAD_PAGE_FAULT                = 13, /* Load page fault */
    RISCV_EXCP_RESERVED14                     = 14, /* Reserved	*/
    RISCV_EXCP_STORE_AMO_PAGE_FAULT           = 15, /* Store/AMO page fault */
};

#endif /* RISCV_TRAPS_H */