87 lines
1.7 KiB
C
87 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (C) 2015 Regents of the University of California
|
|
*/
|
|
|
|
#ifndef _ASM_RISCV_ASM_H
|
|
#define _ASM_RISCV_ASM_H
|
|
|
|
#ifdef __ASSEMBLY__
|
|
#define __ASM_STR(x) x
|
|
#else
|
|
#define __ASM_STR(x) #x
|
|
#endif
|
|
|
|
#if __riscv_xlen == 64
|
|
#define __REG_SEL(a, b) __ASM_STR(a)
|
|
#elif __riscv_xlen == 32
|
|
#define __REG_SEL(a, b) __ASM_STR(b)
|
|
#else
|
|
#error "Unexpected __riscv_xlen"
|
|
#endif
|
|
|
|
#define REG_L __REG_SEL(ld, lw)
|
|
#define REG_S __REG_SEL(sd, sw)
|
|
#define REG_SC __REG_SEL(sc.d, sc.w)
|
|
#define REG_AMOSWAP_AQ __REG_SEL(amoswap.d.aq, amoswap.w.aq)
|
|
#define REG_ASM __REG_SEL(.dword, .word)
|
|
#define SZREG __REG_SEL(8, 4)
|
|
#define LGREG __REG_SEL(3, 2)
|
|
|
|
#if __SIZEOF_POINTER__ == 8
|
|
#ifdef __ASSEMBLY__
|
|
#define RISCV_PTR .dword
|
|
#define RISCV_SZPTR 8
|
|
#define RISCV_LGPTR 3
|
|
#else
|
|
#define RISCV_PTR ".dword"
|
|
#define RISCV_SZPTR "8"
|
|
#define RISCV_LGPTR "3"
|
|
#endif
|
|
#elif __SIZEOF_POINTER__ == 4
|
|
#ifdef __ASSEMBLY__
|
|
#define RISCV_PTR .word
|
|
#define RISCV_SZPTR 4
|
|
#define RISCV_LGPTR 2
|
|
#else
|
|
#define RISCV_PTR ".word"
|
|
#define RISCV_SZPTR "4"
|
|
#define RISCV_LGPTR "2"
|
|
#endif
|
|
#else
|
|
#error "Unexpected __SIZEOF_POINTER__"
|
|
#endif
|
|
|
|
#if (__SIZEOF_INT__ == 4)
|
|
#define RISCV_INT __ASM_STR(.word)
|
|
#define RISCV_SZINT __ASM_STR(4)
|
|
#define RISCV_LGINT __ASM_STR(2)
|
|
#else
|
|
#error "Unexpected __SIZEOF_INT__"
|
|
#endif
|
|
|
|
#if (__SIZEOF_SHORT__ == 2)
|
|
#define RISCV_SHORT __ASM_STR(.half)
|
|
#define RISCV_SZSHORT __ASM_STR(2)
|
|
#define RISCV_LGSHORT __ASM_STR(1)
|
|
#else
|
|
#error "Unexpected __SIZEOF_SHORT__"
|
|
#endif
|
|
|
|
#ifdef __ASSEMBLY__
|
|
|
|
/* Common assembly source macros */
|
|
|
|
/*
|
|
* NOP sequence
|
|
*/
|
|
.macro nops, num
|
|
.rept \num
|
|
nop
|
|
.endr
|
|
.endm
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* _ASM_RISCV_ASM_H */
|