102 lines
3.2 KiB
C
102 lines
3.2 KiB
C
/* $NetBSD: ras.h,v 1.5 2004/07/19 03:12:31 chs Exp $ */
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/*-
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* Copyright (c) 2002, 2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Gregory McGarry.
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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 _SYS_RAS_H_
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#define _SYS_RAS_H_
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#include <sys/types.h>
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#include <sys/queue.h>
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struct ras {
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LIST_ENTRY(ras) ras_list;
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caddr_t ras_startaddr;
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caddr_t ras_endaddr;
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int ras_hits;
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};
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#define RAS_INSTALL 0
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#define RAS_PURGE 1
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#define RAS_PURGE_ALL 2
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#ifdef _KERNEL
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struct pool;
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struct proc;
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caddr_t ras_lookup(struct proc *, caddr_t);
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int ras_fork(struct proc *, struct proc *);
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int ras_purgeall(struct proc *);
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extern struct pool ras_pool;
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#else
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#ifndef RAS_DECL
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#define RAS_DECL(name) \
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extern void __CONCAT(name,_ras_start(void)), __CONCAT(name,_ras_end(void))
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#endif /* RAS_DECL */
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/*
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* RAS_START and RAS_END contain implicit instruction reordering
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* barriers. See __insn_barrier() in <sys/cdefs.h>.
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*/
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#define RAS_START(name) \
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__asm __volatile(".globl " ___STRING(name) "_ras_start\n" \
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___STRING(name) "_ras_start:" \
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::: "memory")
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#define RAS_END(name) \
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__asm __volatile(".globl " ___STRING(name) "_ras_end\n" \
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___STRING(name) "_ras_end:" \
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::: "memory")
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#define RAS_ADDR(name) (void *) __CONCAT(name,_ras_start)
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#define RAS_SIZE(name) ((size_t)((uintptr_t) __CONCAT(name,_ras_end) - \
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(uintptr_t) __CONCAT(name,_ras_start)))
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__BEGIN_DECLS
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int rasctl(caddr_t, size_t, int);
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__END_DECLS
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#endif /* _KERNEL */
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#endif /* !_SYS_RAS_H_ */
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