d07160f401
than the first one on a controller, and work for secondary controllers. Due to the prom not having nodes for each disk, but a catch-all one, we have to iterate over each device, trying to open it to determine whether it is actually present. Since probing this way takese some time (and spews some spurious warnings), it should maybe be short-circuited if we use the device we were booted from. Implement lazy device probing, and correct slice/partiniton handling in the ofwd_open() code. With this, I can now actually boot a kernel from disk, and the loader does not create unnecessary delays. Submitted by: tmm
109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
/*
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* Copyright (C) 2000 Benno Rice.
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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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*
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* THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "openfirm.h"
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/* Note: Must match the 'struct devdesc' in bootstrap.h */
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struct ofw_devdesc {
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struct devsw *d_dev;
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int d_type;
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union {
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struct {
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phandle_t handle; /* OFW handle */
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unsigned long partoff; /* sector offset */
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int unit; /* disk number */
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char path[64]; /* OFW path */
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int slice; /* slice# */
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int partition; /* partition in slice */
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int bsize; /* block size */
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} ofwdisk;
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struct {
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int unit;
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char path[64];
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void *dmabuf;
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} netif;
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} d_kind;
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/*
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* Keeping this around so I know what came from the NetBSD stuff.
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* I've made a wild guess as to what goes where, but I have no idea if it's
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* right.
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*
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* void *dmabuf;
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*/
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};
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#define MAXDEV 31 /* Maximum number of devices. */
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/* Known types. Use the same as alpha for consistancy. */
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#define DEVT_NONE 0
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#define DEVT_DISK 1
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#define DEVT_NET 2
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extern int ofw_getdev(void **vdev, const char *devspec, const char **path);
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extern char *ofw_fmtdev(void *vdev);
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extern int ofw_parseofwdev(struct ofw_devdesc *, const char *devspec);
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extern int ofw_setcurrdev(struct env_var *ev, int flags, void *value);
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extern struct devsw ofwdisk;
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extern struct netif_driver ofwnet;
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void ofwd_enter_dev(const char *);
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int ofwn_getunit(const char *);
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ssize_t ofw_copyin(const void *src, vm_offset_t dest, const size_t len);
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ssize_t ofw_copyout(const vm_offset_t src, void *dest, const size_t len);
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ssize_t ofw_readin(const int fd, vm_offset_t dest, const size_t len);
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void ofw_devsearch_init(void);
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int ofw_devsearch(const char *, char *);
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int ofw_devicetype(char *);
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extern int ofw_boot(void);
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extern int ofw_autoload(void);
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void ofw_memmap(void);
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void *ofw_alloc_heap(unsigned int);
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void ofw_release_heap(void);
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struct preloaded_file;
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struct file_format;
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int ofw_elf_loadfile(char *, vm_offset_t, struct preloaded_file **);
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int ofw_elf_exec(struct preloaded_file *);
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extern struct file_format ofw_elf;
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extern void reboot(void);
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extern int main(int (*openfirm)(void *));
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struct ofw_reg
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{
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cell_t base;
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cell_t size;
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};
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