NetBSD/sys/arch/arm/arm32/sys_machdep.c

124 lines
3.3 KiB
C

/* $NetBSD: sys_machdep.c,v 1.6 2003/07/15 00:24:42 lukem Exp $ */
/*
* Copyright (c) 1995-1997 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 THE 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 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.
*
* RiscBSD kernel project
*
* sys_machdep.c
*
* Machine dependant syscalls
*
* Created : 10/01/96
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sys_machdep.c,v 1.6 2003/07/15 00:24:42 lukem Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/mbuf.h>
#include <sys/mount.h>
#include <uvm/uvm_extern.h>
#include <sys/sysctl.h>
#include <sys/sa.h>
#include <sys/syscallargs.h>
#include <machine/sysarch.h>
/* Prototypes */
static int arm32_sync_icache __P((struct proc *, char *, register_t *));
static int arm32_drain_writebuf __P((struct proc *, char *, register_t *));
static int
arm32_sync_icache(p, args, retval)
struct proc *p;
char *args;
register_t *retval;
{
struct arm_sync_icache_args ua;
int error;
if ((error = copyin(args, &ua, sizeof(ua))) != 0)
return (error);
cpu_icache_sync_range(ua.addr, ua.len);
*retval = 0;
return(0);
}
static int
arm32_drain_writebuf(p, args, retval)
struct proc *p;
char *args;
register_t *retval;
{
/* No args. */
cpu_drain_writebuf();
*retval = 0;
return(0);
}
int
sys_sysarch(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct sys_sysarch_args /* {
syscallarg(int) op;
syscallarg(void *) parms;
} */ *uap = v;
struct proc *p = l->l_proc;
int error = 0;
switch(SCARG(uap, op)) {
case ARM_SYNC_ICACHE :
error = arm32_sync_icache(p, SCARG(uap, parms), retval);
break;
case ARM_DRAIN_WRITEBUF :
error = arm32_drain_writebuf(p, SCARG(uap, parms), retval);
break;
default:
error = EINVAL;
break;
}
return (error);
}
/* End of sys_machdep.c */