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 43 asm( 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