1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) 2015 Regents of the University of California 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #ifndef _ASM_RISCV_ASM_H 7*4882a593Smuzhiyun #define _ASM_RISCV_ASM_H 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #ifdef __ASSEMBLY__ 10*4882a593Smuzhiyun #define __ASM_STR(x) x 11*4882a593Smuzhiyun #else 12*4882a593Smuzhiyun #define __ASM_STR(x) #x 13*4882a593Smuzhiyun #endif 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun #if __riscv_xlen == 64 16*4882a593Smuzhiyun #define __REG_SEL(a, b) __ASM_STR(a) 17*4882a593Smuzhiyun #elif __riscv_xlen == 32 18*4882a593Smuzhiyun #define __REG_SEL(a, b) __ASM_STR(b) 19*4882a593Smuzhiyun #else 20*4882a593Smuzhiyun #error "Unexpected __riscv_xlen" 21*4882a593Smuzhiyun #endif 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun #define REG_L __REG_SEL(ld, lw) 24*4882a593Smuzhiyun #define REG_S __REG_SEL(sd, sw) 25*4882a593Smuzhiyun #define REG_SC __REG_SEL(sc.d, sc.w) 26*4882a593Smuzhiyun #define SZREG __REG_SEL(8, 4) 27*4882a593Smuzhiyun #define LGREG __REG_SEL(3, 2) 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun #if __SIZEOF_POINTER__ == 8 30*4882a593Smuzhiyun #ifdef __ASSEMBLY__ 31*4882a593Smuzhiyun #define RISCV_PTR .dword 32*4882a593Smuzhiyun #define RISCV_SZPTR 8 33*4882a593Smuzhiyun #define RISCV_LGPTR 3 34*4882a593Smuzhiyun #else 35*4882a593Smuzhiyun #define RISCV_PTR ".dword" 36*4882a593Smuzhiyun #define RISCV_SZPTR "8" 37*4882a593Smuzhiyun #define RISCV_LGPTR "3" 38*4882a593Smuzhiyun #endif 39*4882a593Smuzhiyun #elif __SIZEOF_POINTER__ == 4 40*4882a593Smuzhiyun #ifdef __ASSEMBLY__ 41*4882a593Smuzhiyun #define RISCV_PTR .word 42*4882a593Smuzhiyun #define RISCV_SZPTR 4 43*4882a593Smuzhiyun #define RISCV_LGPTR 2 44*4882a593Smuzhiyun #else 45*4882a593Smuzhiyun #define RISCV_PTR ".word" 46*4882a593Smuzhiyun #define RISCV_SZPTR "4" 47*4882a593Smuzhiyun #define RISCV_LGPTR "2" 48*4882a593Smuzhiyun #endif 49*4882a593Smuzhiyun #else 50*4882a593Smuzhiyun #error "Unexpected __SIZEOF_POINTER__" 51*4882a593Smuzhiyun #endif 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun #if (__SIZEOF_INT__ == 4) 54*4882a593Smuzhiyun #define RISCV_INT __ASM_STR(.word) 55*4882a593Smuzhiyun #define RISCV_SZINT __ASM_STR(4) 56*4882a593Smuzhiyun #define RISCV_LGINT __ASM_STR(2) 57*4882a593Smuzhiyun #else 58*4882a593Smuzhiyun #error "Unexpected __SIZEOF_INT__" 59*4882a593Smuzhiyun #endif 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun #if (__SIZEOF_SHORT__ == 2) 62*4882a593Smuzhiyun #define RISCV_SHORT __ASM_STR(.half) 63*4882a593Smuzhiyun #define RISCV_SZSHORT __ASM_STR(2) 64*4882a593Smuzhiyun #define RISCV_LGSHORT __ASM_STR(1) 65*4882a593Smuzhiyun #else 66*4882a593Smuzhiyun #error "Unexpected __SIZEOF_SHORT__" 67*4882a593Smuzhiyun #endif 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun #endif /* _ASM_RISCV_ASM_H */ 70