1/*
2 * Macros for accessing system registers with older binutils.
3 *
4 * Copyright (C) 2014 ARM Ltd.
5 * Author: Catalin Marinas <catalin.marinas@arm.com>
6 *
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#ifndef __ASM_SYSREG_H
21#define __ASM_SYSREG_H
22
23#define sys_reg(op0, op1, crn, crm, op2) \
24	((((op0)-2)<<19)|((op1)<<16)|((crn)<<12)|((crm)<<8)|((op2)<<5))
25
26#ifdef __ASSEMBLY__
27
28	.irp	num,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30
29	.equ	__reg_num_x\num, \num
30	.endr
31	.equ	__reg_num_xzr, 31
32
33	.macro	mrs_s, rt, sreg
34	.inst	0xd5300000|(\sreg)|(__reg_num_\rt)
35	.endm
36
37	.macro	msr_s, sreg, rt
38	.inst	0xd5100000|(\sreg)|(__reg_num_\rt)
39	.endm
40
41#else
42
43asm(
44"	.irp	num,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30\n"
45"	.equ	__reg_num_x\\num, \\num\n"
46"	.endr\n"
47"	.equ	__reg_num_xzr, 31\n"
48"\n"
49"	.macro	mrs_s, rt, sreg\n"
50"	.inst	0xd5300000|(\\sreg)|(__reg_num_\\rt)\n"
51"	.endm\n"
52"\n"
53"	.macro	msr_s, sreg, rt\n"
54"	.inst	0xd5100000|(\\sreg)|(__reg_num_\\rt)\n"
55"	.endm\n"
56);
57
58#endif
59
60#endif	/* __ASM_SYSREG_H */
61