123 lines
3.9 KiB
C
123 lines
3.9 KiB
C
/****************************************************************************
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* arch/risc-v/include/arch.h
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*
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* Copyright (C) 2016 Ken Pettit. All rights reserved.
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* Author: Ken Pettit <pettitkd@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/* This file should never be included directly but, rather,
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* only indirectly through nuttx/arch.h
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*/
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#ifndef __ARCH_RISCV_INCLUDE_ARCH_H
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#define __ARCH_RISCV_INCLUDE_ARCH_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifndef __ASSEMBLY__
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# include <stdint.h>
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#endif
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#include <arch/csr.h>
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#ifdef CONFIG_ARCH_RV32IM
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# include <arch/rv32im/arch.h>
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#endif
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#ifdef CONFIG_ARCH_RV64GC
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# include <arch/rv64gc/arch.h>
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Macros to get the core and vendor ID, HART, arch and ISA codes, etc.
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*/
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#ifdef CONFIG_RV32IM_SYSTEM_CSRRS_SUPPORT
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uint32_t up_getmisa(void);
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uint32_t up_getarchid(void);
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uint32_t up_getimpid(void);
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uint32_t up_getvendorid(void);
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uint32_t up_gethartid(void);
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#else
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#define up_getmisa() 0
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#define up_getarchid() 0
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#define up_getimpid() 0
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#define up_getvendorid() 0
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#define up_gethartid() 0
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#endif
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/****************************************************************************
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* Inline functions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef CONFIG_RV32IM_HW_MULDIV
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uint32_t up_hard_mul(uint32_t a, uint32_t b);
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uint32_t up_hard_mulh(uint32_t a, uint32_t b);
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uint32_t up_hard_mulhsu(uint32_t a, uint32_t b);
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uint32_t up_hard_mulhu(uint32_t a, uint32_t b);
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uint32_t up_hard_div(uint32_t a, uint32_t b);
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uint32_t up_hard_rem(uint32_t a, uint32_t b);
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uint32_t up_hard_divu(uint32_t a, uint32_t b);
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uint32_t up_hard_remu(uint32_t a, uint32_t b);
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uint32_t time_hard_mul(uint32_t a, uint32_t b, uint32_t *t);
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#endif
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ARCH_RISCV_INCLUDE_ARCH_H */
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