74 lines
2.9 KiB
C
74 lines
2.9 KiB
C
/* $NetBSD: cpufunc.h,v 1.13 2002/02/22 19:44:02 uch Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SH3_CPUFUNC_H_
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#define _SH3_CPUFUNC_H_
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#ifdef _KERNEL
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#ifndef _LOCORE
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/*
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* Memory-mapped register access method.
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*/
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#define _reg_read_1(a) (*(__volatile__ u_int8_t *)((vaddr_t)(a)))
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#define _reg_read_2(a) (*(__volatile__ u_int16_t *)((vaddr_t)(a)))
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#define _reg_read_4(a) (*(__volatile__ u_int32_t *)((vaddr_t)(a)))
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#define _reg_write_1(a, v) \
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(*(__volatile__ u_int8_t *)(a) = (u_int8_t)(v))
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#define _reg_write_2(a, v) \
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(*(__volatile__ u_int16_t *)(a) = (u_int16_t)(v))
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#define _reg_write_4(a, v) \
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(*(__volatile__ u_int32_t *)(a) = (u_int32_t)(v))
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/*
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* CPU exception/interrupt ops. (locore_subr.S)
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*/
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/* suspend/resume external interrupt (SR.IMASK) */
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u_int32_t _cpu_intr_suspend(void);
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void _cpu_intr_resume(u_int32_t);
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/* suspend/resume exception (SR.BL) */
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u_int32_t _cpu_exception_suspend(void);
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void _cpu_exception_resume(u_int32_t);
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/* for delay loop. */
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void _cpu_spin(u_int32_t);
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/* Soft reset */
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void cpu_reset(void);
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#endif /* !_LOCORE */
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#endif /* _KERNEL */
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#endif /* !_SH3_CPUFUNC_H_ */
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