1/*
2 * include/asm-arm/unified.h - Unified Assembler Syntax helper macros
3 *
4 * Copyright (C) 2008 ARM Limited
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20#ifndef __ASM_UNIFIED_H
21#define __ASM_UNIFIED_H
22
23#if defined(__ASSEMBLY__) && defined(CONFIG_ARM_ASM_UNIFIED)
24	.syntax unified
25#endif
26
27#ifdef CONFIG_CPU_V7M
28#define AR_CLASS(x...)
29#define M_CLASS(x...)	x
30#else
31#define AR_CLASS(x...)	x
32#define M_CLASS(x...)
33#endif
34
35#ifdef CONFIG_THUMB2_KERNEL
36
37#if __GNUC__ < 4
38#error Thumb-2 kernel requires gcc >= 4
39#endif
40
41/* The CPSR bit describing the instruction set (Thumb) */
42#define PSR_ISETSTATE	PSR_T_BIT
43
44#define ARM(x...)
45#define THUMB(x...)	x
46#ifdef __ASSEMBLY__
47#define W(instr)	instr.w
48#else
49#define WASM(instr)	#instr ".w"
50#endif
51
52#else	/* !CONFIG_THUMB2_KERNEL */
53
54/* The CPSR bit describing the instruction set (ARM) */
55#define PSR_ISETSTATE	0
56
57#define ARM(x...)	x
58#define THUMB(x...)
59#ifdef __ASSEMBLY__
60#define W(instr)	instr
61#else
62#define WASM(instr)	#instr
63#endif
64
65#endif	/* CONFIG_THUMB2_KERNEL */
66
67#ifndef CONFIG_ARM_ASM_UNIFIED
68
69/*
70 * If the unified assembly syntax isn't used (in ARM mode), these
71 * macros expand to an empty string
72 */
73#ifdef __ASSEMBLY__
74	.macro	it, cond
75	.endm
76	.macro	itt, cond
77	.endm
78	.macro	ite, cond
79	.endm
80	.macro	ittt, cond
81	.endm
82	.macro	itte, cond
83	.endm
84	.macro	itet, cond
85	.endm
86	.macro	itee, cond
87	.endm
88	.macro	itttt, cond
89	.endm
90	.macro	ittte, cond
91	.endm
92	.macro	ittet, cond
93	.endm
94	.macro	ittee, cond
95	.endm
96	.macro	itett, cond
97	.endm
98	.macro	itete, cond
99	.endm
100	.macro	iteet, cond
101	.endm
102	.macro	iteee, cond
103	.endm
104#else	/* !__ASSEMBLY__ */
105__asm__(
106"	.macro	it, cond\n"
107"	.endm\n"
108"	.macro	itt, cond\n"
109"	.endm\n"
110"	.macro	ite, cond\n"
111"	.endm\n"
112"	.macro	ittt, cond\n"
113"	.endm\n"
114"	.macro	itte, cond\n"
115"	.endm\n"
116"	.macro	itet, cond\n"
117"	.endm\n"
118"	.macro	itee, cond\n"
119"	.endm\n"
120"	.macro	itttt, cond\n"
121"	.endm\n"
122"	.macro	ittte, cond\n"
123"	.endm\n"
124"	.macro	ittet, cond\n"
125"	.endm\n"
126"	.macro	ittee, cond\n"
127"	.endm\n"
128"	.macro	itett, cond\n"
129"	.endm\n"
130"	.macro	itete, cond\n"
131"	.endm\n"
132"	.macro	iteet, cond\n"
133"	.endm\n"
134"	.macro	iteee, cond\n"
135"	.endm\n");
136#endif	/* __ASSEMBLY__ */
137
138#endif	/* CONFIG_ARM_ASM_UNIFIED */
139
140#endif	/* !__ASM_UNIFIED_H */
141