/* $OpenBSD: sys_machdep.c,v 1.19 2005/12/17 07:31:26 miod Exp $ */
/*
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)sys_machdep.c 8.2 (Berkeley) 1/13/94
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <sys/time.h>
#include <sys/proc.h>
#include <sys/signalvar.h>
#include <sys/uio.h>
#include <sys/kernel.h>
#include <sys/mtio.h>
#include <sys/buf.h>
#include <sys/mount.h>
#include <sys/syscallargs.h>
#include <uvm/uvm_extern.h>
#include <machine/cpu.h>
/*
* DMA cache control
*/
/*ARGSUSED1*/
void
dma_cachectl(addr, len)
caddr_t addr;
int len;
{
#if defined(M68040) || defined(M68060)
if (mmutype <= MMU_68040) {
register int inc = 0;
int pa = 0;
caddr_t end;
end = addr + len;
if (len <= 1024 || mmutype == MMU_68060) { /* always line push line for 060 */
addr = (caddr_t)((int)addr & ~0xF);
inc = 16;
} else {
addr = (caddr_t)((int)addr & ~PGOFSET);
inc = NBPG;
}
do {
/*
* Convert to physical address.
*/
if (pa == 0 || ((int)addr & PGOFSET) == 0) {
pa = kvtop((vaddr_t)addr);
}
if (inc == 16) {
DCFL(pa);
ICPL(pa);
} else {
DCFP(pa);
ICPP(pa);
}
pa += inc;
addr += inc;
} while (addr < end);
}
#endif /* M68040 */
}
int
sys_sysarch(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
#if 0
struct sys_sysarch_args /* {
syscallarg(int) op;
syscallarg(char *) parms;
} */ *uap = v;
#endif
return ENOSYS;
}