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git01.mediatek.com / filogic / uboot / cb167e81c327345e05ae5d9ced956ccd9f384575 / . / arch / arm / include / asm / unified.h
blob: 2fae54ebd89b9f4a3777af21fbbb261cc39b27ca [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -0400[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0 */
Marek Vasutd0869182016-05-26 18:01:37 +0200[diff] [blame]2/*
3 * include/asm-arm/unified.h - Unified Assembler Syntax helper macros
4 *
5 * Copyright (C) 2008 ARM Limited
Marek Vasutd0869182016-05-26 18:01:37 +0200[diff] [blame]6 */
7
8#ifndef __ASM_UNIFIED_H
9#define __ASM_UNIFIED_H
10
11#if defined(__ASSEMBLY__) && defined(CONFIG_ARM_ASM_UNIFIED)
12 .syntax unified
13#endif
14
15#ifdef CONFIG_CPU_V7M
16#define AR_CLASS(x...)
17#define M_CLASS(x...) x
18#else
19#define AR_CLASS(x...) x
20#define M_CLASS(x...)
21#endif
22
23#ifdef CONFIG_THUMB2_KERNEL
24
25#if __GNUC__ < 4
26#error Thumb-2 kernel requires gcc >= 4
27#endif
28
29/* The CPSR bit describing the instruction set (Thumb) */
30#define PSR_ISETSTATE PSR_T_BIT
31
32#define ARM(x...)
33#define THUMB(x...) x
34#ifdef __ASSEMBLY__
35#define W(instr) instr.w
36#else
37#define WASM(instr) #instr ".w"
38#endif
39
40#else /* !CONFIG_THUMB2_KERNEL */
41
42/* The CPSR bit describing the instruction set (ARM) */
43#define PSR_ISETSTATE 0
44
45#define ARM(x...) x
46#define THUMB(x...)
47#ifdef __ASSEMBLY__
48#define W(instr) instr
49#else
50#define WASM(instr) #instr
51#endif
52
53#endif /* CONFIG_THUMB2_KERNEL */
54
55#ifndef CONFIG_ARM_ASM_UNIFIED
56
57/*
58 * If the unified assembly syntax isn't used (in ARM mode), these
59 * macros expand to an empty string
60 */
61#ifdef __ASSEMBLY__
62 .macro it, cond
63 .endm
64 .macro itt, cond
65 .endm
66 .macro ite, cond
67 .endm
68 .macro ittt, cond
69 .endm
70 .macro itte, cond
71 .endm
72 .macro itet, cond
73 .endm
74 .macro itee, cond
75 .endm
76 .macro itttt, cond
77 .endm
78 .macro ittte, cond
79 .endm
80 .macro ittet, cond
81 .endm
82 .macro ittee, cond
83 .endm
84 .macro itett, cond
85 .endm
86 .macro itete, cond
87 .endm
88 .macro iteet, cond
89 .endm
90 .macro iteee, cond
91 .endm
92#else /* !__ASSEMBLY__ */
93__asm__(
94" .macro it, cond\n"
95" .endm\n"
96" .macro itt, cond\n"
97" .endm\n"
98" .macro ite, cond\n"
99" .endm\n"
100" .macro ittt, cond\n"
101" .endm\n"
102" .macro itte, cond\n"
103" .endm\n"
104" .macro itet, cond\n"
105" .endm\n"
106" .macro itee, cond\n"
107" .endm\n"
108" .macro itttt, cond\n"
109" .endm\n"
110" .macro ittte, cond\n"
111" .endm\n"
112" .macro ittet, cond\n"
113" .endm\n"
114" .macro ittee, cond\n"
115" .endm\n"
116" .macro itett, cond\n"
117" .endm\n"
118" .macro itete, cond\n"
119" .endm\n"
120" .macro iteet, cond\n"
121" .endm\n"
122" .macro iteee, cond\n"
123" .endm\n");
124#endif /* __ASSEMBLY__ */
125
126#endif /* CONFIG_ARM_ASM_UNIFIED */
127
128#endif /* !__ASM_UNIFIED_H */