Return to sys_machdep.c CVS log

Up to [local] / sys / arch / arm / arm

Annotation of sys/arch/arm/arm/sys_machdep.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: sys_machdep.c,v 1.3 2004/05/19 03:17:07 drahn Exp $   */
                      2: /*     $NetBSD: sys_machdep.c,v 1.6 2003/07/15 00:24:42 lukem Exp $    */
                      3:
                      4: /*
                      5:  * Copyright (c) 1995-1997 Mark Brinicombe.
                      6:  * All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. All advertising materials mentioning features or use of this software
                     17:  *    must display the following acknowledgement:
                     18:  *     This product includes software developed by Mark Brinicombe
                     19:  * 4. The name of the company nor the name of the author may be used to
                     20:  *    endorse or promote products derived from this software without specific
                     21:  *    prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
                     24:  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
                     25:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     26:  * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
                     27:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
                     28:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
                     29:  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  *
                     35:  * RiscBSD kernel project
                     36:  *
                     37:  * sys_machdep.c
                     38:  *
                     39:  * Machine dependant syscalls
                     40:  *
                     41:  * Created      : 10/01/96
                     42:  */
                     43:
                     44: #include <sys/param.h>
                     45: #include <sys/systm.h>
                     46: #include <sys/proc.h>
                     47: #include <sys/mbuf.h>
                     48: #include <sys/mount.h>
                     49: #include <uvm/uvm_extern.h>
                     50: #include <sys/sysctl.h>
                     51: #include <sys/syscallargs.h>
                     52:
                     53: #include <machine/sysarch.h>
                     54:
                     55: /* Prototypes */
                     56: static int arm32_sync_icache (struct proc *, char *, register_t *);
                     57: static int arm32_drain_writebuf (struct proc *, char *, register_t *);
                     58:
                     59: static int
                     60: arm32_sync_icache(p, args, retval)
                     61:        struct proc *p;
                     62:        char *args;
                     63:        register_t *retval;
                     64: {
                     65:        struct arm_sync_icache_args ua;
                     66:        int error;
                     67:
                     68:        if ((error = copyin(args, &ua, sizeof(ua))) != 0)
                     69:                return (error);
                     70:
                     71:        cpu_icache_sync_range(ua.addr, ua.len);
                     72:
                     73:        *retval = 0;
                     74:        return(0);
                     75: }
                     76:
                     77: static int
                     78: arm32_drain_writebuf(p, args, retval)
                     79:        struct proc *p;
                     80:        char *args;
                     81:        register_t *retval;
                     82: {
                     83:        /* No args. */
                     84:
                     85:        cpu_drain_writebuf();
                     86:
                     87:        *retval = 0;
                     88:        return(0);
                     89: }
                     90:
                     91: int
                     92: sys_sysarch(p, v, retval)
                     93:        struct proc *p;
                     94:        void *v;
                     95:        register_t *retval;
                     96: {
                     97:        struct sys_sysarch_args /* {
                     98:                syscallarg(int) op;
                     99:                syscallarg(void *) parms;
                    100:        } */ *uap = v;
                    101:        int error = 0;
                    102:
                    103:        switch(SCARG(uap, op)) {
                    104:        case ARM_SYNC_ICACHE :
                    105:                error = arm32_sync_icache(p, SCARG(uap, parms), retval);
                    106:                break;
                    107:
                    108:        case ARM_DRAIN_WRITEBUF :
                    109:                error = arm32_drain_writebuf(p, SCARG(uap, parms), retval);
                    110:                break;
                    111:
                    112:        default:
                    113:                error = EINVAL;
                    114:                break;
                    115:        }
                    116:        return (error);
                    117: }
                    118:
                    119: /* End of sys_machdep.c */