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