File: [local] / sys / ufs / ufs / ufs_vfsops.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:16:20 2008 UTC (16 years, 3 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
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/* $OpenBSD: ufs_vfsops.c,v 1.15 2006/04/04 11:21:40 pedro Exp $ */
/* $NetBSD: ufs_vfsops.c,v 1.4 1996/02/09 22:36:12 christos Exp $ */
/*
* Copyright (c) 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
*
* 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.
*
* @(#)ufs_vfsops.c 8.4 (Berkeley) 4/16/94
*/
#include <sys/param.h>
#include <sys/mbuf.h>
#include <sys/mount.h>
#include <sys/proc.h>
#include <sys/buf.h>
#include <sys/vnode.h>
#include <sys/malloc.h>
#include <miscfs/specfs/specdev.h>
#include <ufs/ufs/quota.h>
#include <ufs/ufs/inode.h>
#include <ufs/ufs/ufsmount.h>
#include <ufs/ufs/ufs_extern.h>
#ifdef UFS_DIRHASH
#include <ufs/ufs/dir.h>
#include <ufs/ufs/dirhash.h>
#endif
/*
* Make a filesystem operational.
* Nothing to do at the moment.
*/
/* ARGSUSED */
int
ufs_start(struct mount *mp, int flags, struct proc *p)
{
return (0);
}
/*
* Return the root of a filesystem.
*/
int
ufs_root(struct mount *mp, struct vnode **vpp)
{
struct vnode *nvp;
int error;
if ((error = VFS_VGET(mp, (ino_t)ROOTINO, &nvp)) != 0)
return (error);
*vpp = nvp;
return (0);
}
/*
* Verify a remote client has export rights and return these rights via.
* exflagsp and credanonp.
*/
int
ufs_check_export(struct mount *mp, struct mbuf *nam, int *exflagsp,
struct ucred **credanonp)
{
struct netcred *np;
struct ufsmount *ump = VFSTOUFS(mp);
/*
* Get the export permission structure for this <mp, client> tuple.
*/
np = vfs_export_lookup(mp, &ump->um_export, nam);
if (np == NULL)
return (EACCES);
*exflagsp = np->netc_exflags;
*credanonp = &np->netc_anon;
return (0);
}
/*
* Initialize UFS file systems, done only once.
*/
int
ufs_init(struct vfsconf *vfsp)
{
static int done;
if (done)
return (0);
done = 1;
ufs_ihashinit();
ufs_quota_init();
#ifdef UFS_DIRHASH
ufsdirhash_init();
#endif
return (0);
}
/*
* This is the generic part of fhtovp called after the underlying
* filesystem has validated the file handle.
*/
int
ufs_fhtovp(struct mount *mp, struct ufid *ufhp, struct vnode **vpp)
{
struct inode *ip;
struct vnode *nvp;
int error;
if ((error = VFS_VGET(mp, ufhp->ufid_ino, &nvp)) != 0) {
*vpp = NULLVP;
return (error);
}
ip = VTOI(nvp);
if (DIP(ip, mode) == 0 || DIP(ip, gen) != ufhp->ufid_gen) {
vput(nvp);
*vpp = NULLVP;
return (ESTALE);
}
*vpp = nvp;
return (0);
}