From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> Various definitions for assembly code, taken as-is from Linux. Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> --- arch/riscv/include/asm/asm.h | 69 ++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 arch/riscv/include/asm/asm.h diff --git a/arch/riscv/include/asm/asm.h b/arch/riscv/include/asm/asm.h new file mode 100644 index 000000000000..9c992a88d858 --- /dev/null +++ b/arch/riscv/include/asm/asm.h @@ -0,0 +1,69 @@ +/* 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 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 + +#endif /* _ASM_RISCV_ASM_H */ -- 2.29.2 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
