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50acfb2b | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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2 | /* |
3 | * Copyright (C) 2015 Regents of the University of California | |
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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) | |
18856604 | 25 | #define REG_SC __REG_SEL(sc.d, sc.w) |
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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) | |
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54 | #define RISCV_INT __ASM_STR(.word) |
55 | #define RISCV_SZINT __ASM_STR(4) | |
56 | #define RISCV_LGINT __ASM_STR(2) | |
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57 | #else |
58 | #error "Unexpected __SIZEOF_INT__" | |
59 | #endif | |
60 | ||
61 | #if (__SIZEOF_SHORT__ == 2) | |
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62 | #define RISCV_SHORT __ASM_STR(.half) |
63 | #define RISCV_SZSHORT __ASM_STR(2) | |
64 | #define RISCV_LGSHORT __ASM_STR(1) | |
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65 | #else |
66 | #error "Unexpected __SIZEOF_SHORT__" | |
67 | #endif | |
68 | ||
69 | #endif /* _ASM_RISCV_ASM_H */ |