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Commit	Line	Data
	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* Copyright (c) 1992,7 NeXT Computer, Inc.
	24	*
	25	* Unix data structure initialization.
	26	*/
	27
	28	#include <mach/mach_types.h>
	29
	30	#include <vm/vm_kern.h>
	31	#include <mach/vm_prot.h>
	32
	33	#include <sys/param.h>
	34	#include <sys/buf.h>
	35	#include <sys/clist.h>
	36	#include <sys/mbuf.h>
	37	#include <sys/systm.h>
	38	#include <sys/tty.h>
	39	#include <dev/ppc/cons.h>
	40
	41	extern vm_map_t mb_map;
	42
	43	/*
	44	* Declare these as initialized data so we can patch them.
	45	*/
	46
	47	#ifdef NBUF
	48	int nbuf = NBUF;
	49	int niobuf = NBUF/2;
	50	#else
	51	int nbuf = 0;
	52	int niobuf = 0;
	53	#endif
	54
	55	int srv = 0; /* Flag indicates a server boot when set */
	56	int ncl = 0;
	57
	58	vm_map_t bufferhdr_map;
	59
	60	void
	61	bsd_startupearly()
	62	{
	63	vm_offset_t firstaddr;
	64	vm_size_t size;
	65	kern_return_t ret;
	66
	67	if (nbuf == 0)
	68	nbuf = atop_64(sane_size / 100); /* Get 1% of ram, but no more than we can map */
	69	if (nbuf > 8192)
	70	nbuf = 8192;
	71	if (nbuf < 256)
	72	nbuf = 256;
	73
	74	if (niobuf == 0)
	75	niobuf = nbuf;
	76	if (niobuf > 4096)
	77	niobuf = 4096;
	78	if (niobuf < 128)
	79	niobuf = 128;
	80
	81	size = (nbuf + niobuf) * sizeof (struct buf);
	82	size = round_page_32(size);
	83
	84	ret = kmem_suballoc(kernel_map,
	85	&firstaddr,
	86	size,
	87	FALSE,
	88	TRUE,
	89	&bufferhdr_map);
	90
	91	if (ret != KERN_SUCCESS)
	92	panic("Failed to create bufferhdr_map");
	93
	94	ret = kernel_memory_allocate(bufferhdr_map,
	95	&firstaddr,
	96	size,
	97	0,
	98	KMA_HERE \| KMA_KOBJECT);
	99
	100	if (ret != KERN_SUCCESS)
	101	panic("Failed to allocate bufferhdr_map");
	102
	103	buf = (struct buf * )firstaddr;
	104	bzero(buf,size);
	105
	106	if ((sane_size > (64 * 1024 * 1024)) \|\| ncl) {
	107	int scale;
	108	extern u_long tcp_sendspace;
	109	extern u_long tcp_recvspace;
	110
	111	if ((nmbclusters = ncl) == 0) {
	112	if ((nmbclusters = ((sane_size / 16) / MCLBYTES)) > 16384)
	113	nmbclusters = 16384;
	114	}
	115	if ((scale = nmbclusters / NMBCLUSTERS) > 1) {
	116	tcp_sendspace *= scale;
	117	tcp_recvspace *= scale;
	118
	119	if (tcp_sendspace > (32 * 1024))
	120	tcp_sendspace = 32 * 1024;
	121	if (tcp_recvspace > (32 * 1024))
	122	tcp_recvspace = 32 * 1024;
	123	}
	124	}
	125	}
	126
	127	void
	128	bsd_bufferinit()
	129	{
	130	kern_return_t ret;
	131
	132	cons.t_dev = makedev(12, 0);
	133
	134	bsd_startupearly();
	135
	136	ret = kmem_suballoc(kernel_map,
	137	(vm_offset_t *) &mbutl,
	138	(vm_size_t) (nmbclusters * MCLBYTES),
	139	FALSE,
	140	TRUE,
	141	&mb_map);
	142
	143	if (ret != KERN_SUCCESS)
	144	panic("Failed to allocate mb_map\n");
	145
	146	/*
	147	* Set up buffers, so they can be used to read disk labels.
	148	*/
	149	bufinit();
	150	}
	151
	152	void
	153	md_prepare_for_shutdown(int paniced, int howto, char * command)
	154	{
	155	extern void IOSystemShutdownNotification();
	156
	157	/*
	158	* Temporary hack to notify the power management root domain
	159	* that the system will shut down.
	160	*/
	161	IOSystemShutdownNotification();
	162	}