128 lines
3.3 KiB
C
128 lines
3.3 KiB
C
/*-
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* Copyright (c) 1990 The Regents of the University of California.
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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 University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)sys_machdep.c 5.5 (Berkeley) 1/19/91
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/sysproto.h>
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#include <sys/syscall.h>
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#include <sys/sysent.h>
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#include <machine/sysarch.h>
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#ifndef _SYS_SYSPROTO_H_
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struct sysarch_args {
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int op;
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char *parms;
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};
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#endif
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/* Prototypes */
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static int arm32_sync_icache (struct thread *, void *);
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static int arm32_drain_writebuf(struct thread *, void *);
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static int
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arm32_sync_icache(struct thread *td, void *args)
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{
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struct arm_sync_icache_args ua;
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int error;
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if ((error = copyin(args, &ua, sizeof(ua))) != 0)
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return (error);
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cpu_icache_sync_range(ua.addr, ua.len);
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td->td_retval[0] = 0;
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return(0);
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}
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static int
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arm32_drain_writebuf(struct thread *td, void *args)
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{
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/* No args. */
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td->td_retval[0] = 0;
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cpu_drain_writebuf();
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return(0);
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}
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static int
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arm32_set_tp(struct thread *td, void *args)
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{
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td->td_md.md_tp = args;
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return (0);
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}
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static int
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arm32_get_tp(struct thread *td, void *args)
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{
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td->td_retval[0] = (uint32_t)td->td_md.md_tp;
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return (0);
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}
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int
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sysarch(td, uap)
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struct thread *td;
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register struct sysarch_args *uap;
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{
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int error;
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switch (uap->op) {
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case ARM_SYNC_ICACHE :
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error = arm32_sync_icache(td, uap->parms);
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break;
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case ARM_DRAIN_WRITEBUF :
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error = arm32_drain_writebuf(td, uap->parms);
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break;
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case ARM_SET_TP:
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error = arm32_set_tp(td, uap->parms);
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break;
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case ARM_GET_TP:
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error = arm32_get_tp(td, uap->parms);
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break;
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default:
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error = EINVAL;
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break;
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}
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return (error);
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}
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