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/* $NetBSD: sysarch.h,v 1.5 2003/09/11 09:40:12 kleink Exp $ */
/*-
* Copyright (c) 1996-1997 Mark Brinicombe.
* All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Mark Brinicombe.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR ``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 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.
*/
/* $FreeBSD: release/9.1.0/sys/arm/include/sysarch.h 237491 2012-06-23 18:39:35Z marius $ */
#ifndef _ARM_SYSARCH_H_
#define _ARM_SYSARCH_H_
#include <machine/armreg.h>
/*
* The ARM_TP_ADDRESS points to a special purpose page, which is used as local
* store for the ARM per-thread data and Restartable Atomic Sequences support.
* Put it just above the "high" vectors' page.
* The cpu_switch() code assumes ARM_RAS_START is ARM_TP_ADDRESS + 4, and
* ARM_RAS_END is ARM_TP_ADDRESS + 8, so if that ever changes, be sure to
* update the cpu_switch() (and cpu_throw()) code as well.
* In addition, code in arm/include/atomic.h and arm/include/asmacros.h
* assumes that ARM_RAS_END is at ARM_RAS_START+4, so be sure to update those
* if ARM_RAS_END moves in relation to ARM_RAS_START (look for occurrances
* of ldr/str rm,[rn, #4]).
*/
#define ARM_TP_ADDRESS (ARM_VECTORS_HIGH + 0x1000)
#define ARM_RAS_START (ARM_TP_ADDRESS + 4)
#define ARM_RAS_END (ARM_TP_ADDRESS + 8)
#ifndef LOCORE
#ifndef __ASSEMBLER__
#include <sys/cdefs.h>
/*
* Pickup definition of uintptr_t
*/
#include <sys/stdint.h>
/*
* Architecture specific syscalls (arm)
*/
#define ARM_SYNC_ICACHE 0
#define ARM_DRAIN_WRITEBUF 1
#define ARM_SET_TP 2
#define ARM_GET_TP 3
struct arm_sync_icache_args {
uintptr_t addr; /* Virtual start address */
size_t len; /* Region size */
};
#ifndef _KERNEL
__BEGIN_DECLS
int arm_sync_icache (u_int addr, int len);
int arm_drain_writebuf (void);
int sysarch(int, void *);
__END_DECLS
#endif
#endif /* __ASSEMBLER__ */
#endif /* LOCORE */
#endif /* !_ARM_SYSARCH_H_ */