diff options
Diffstat (limited to 'sys/arm64/include/_armreg.h')
| -rw-r--r-- | sys/arm64/include/_armreg.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sys/arm64/include/_armreg.h b/sys/arm64/include/_armreg.h new file mode 100644 index 000000000000..0f5134e5a978 --- /dev/null +++ b/sys/arm64/include/_armreg.h @@ -0,0 +1,57 @@ +/*- + * Copyright (c) 2013, 2014 Andrew Turner + * Copyright (c) 2015,2021 The FreeBSD Foundation + * + * Portions of this software were developed by Andrew Turner + * under sponsorship from the FreeBSD Foundation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if !defined(_MACHINE_ARMREG_H_) && \ + !defined(_MACHINE_CPU_H_) && \ + !defined(_MACHINE_HYPERVISOR_H_) +#error Do not include this file directly +#endif + +#ifndef _MACHINE__ARMREG_H_ +#define _MACHINE__ARMREG_H_ + +#define __MRS_REG_ALT_NAME(op0, op1, crn, crm, op2) \ + S##op0##_##op1##_C##crn##_C##crm##_##op2 +#define _MRS_REG_ALT_NAME(op0, op1, crn, crm, op2) \ + __MRS_REG_ALT_NAME(op0, op1, crn, crm, op2) +#define MRS_REG_ALT_NAME(reg) \ + _MRS_REG_ALT_NAME(reg##_op0, reg##_op1, reg##_CRn, reg##_CRm, reg##_op2) + + +#define READ_SPECIALREG(reg) \ +({ uint64_t _val; \ + __asm __volatile("mrs %0, " __STRING(reg) : "=&r" (_val)); \ + _val; \ +}) +#define WRITE_SPECIALREG(reg, _val) \ + __asm __volatile("msr " __STRING(reg) ", %0" : : "r"((uint64_t)_val)) + +#define UL(x) UINT64_C(x) + +#endif /* !_MACHINE__ARMREG_H_ */ |