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50acfb2b | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
5d8544e2 PD |
2 | /* |
3 | * Copyright (C) 2015 Regents of the University of California | |
5d8544e2 PD |
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 SZREG __REG_SEL(8, 4) | |
26 | #define LGREG __REG_SEL(3, 2) | |
27 | ||
28 | #if __SIZEOF_POINTER__ == 8 | |
29 | #ifdef __ASSEMBLY__ | |
30 | #define RISCV_PTR .dword | |
31 | #define RISCV_SZPTR 8 | |
32 | #define RISCV_LGPTR 3 | |
33 | #else | |
34 | #define RISCV_PTR ".dword" | |
35 | #define RISCV_SZPTR "8" | |
36 | #define RISCV_LGPTR "3" | |
37 | #endif | |
38 | #elif __SIZEOF_POINTER__ == 4 | |
39 | #ifdef __ASSEMBLY__ | |
40 | #define RISCV_PTR .word | |
41 | #define RISCV_SZPTR 4 | |
42 | #define RISCV_LGPTR 2 | |
43 | #else | |
44 | #define RISCV_PTR ".word" | |
45 | #define RISCV_SZPTR "4" | |
46 | #define RISCV_LGPTR "2" | |
47 | #endif | |
48 | #else | |
49 | #error "Unexpected __SIZEOF_POINTER__" | |
50 | #endif | |
51 | ||
52 | #if (__SIZEOF_INT__ == 4) | |
5e6f82b0 OJ |
53 | #define RISCV_INT __ASM_STR(.word) |
54 | #define RISCV_SZINT __ASM_STR(4) | |
55 | #define RISCV_LGINT __ASM_STR(2) | |
5d8544e2 PD |
56 | #else |
57 | #error "Unexpected __SIZEOF_INT__" | |
58 | #endif | |
59 | ||
60 | #if (__SIZEOF_SHORT__ == 2) | |
5e6f82b0 OJ |
61 | #define RISCV_SHORT __ASM_STR(.half) |
62 | #define RISCV_SZSHORT __ASM_STR(2) | |
63 | #define RISCV_LGSHORT __ASM_STR(1) | |
5d8544e2 PD |
64 | #else |
65 | #error "Unexpected __SIZEOF_SHORT__" | |
66 | #endif | |
67 | ||
68 | #endif /* _ASM_RISCV_ASM_H */ |