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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)

/*	$OpenBSD: profile.h,v 1.6 2003/06/03 01:35:30 drahn Exp $ */

/*
 * Copyright (c) 1998 Dale Rahn.
 * All rights reserved.
 *
 *   
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */  
#define	MCOUNT \
	__asm__(" \
		.section \".text\" \n\
		.align 2 \n\
		.globl _mcount \n\
		.type	_mcount,@function \n\
	_mcount: \n\
		lwz	11, 4(1) \n\
		mflr	0 \n\
		stw	0, 4(1) \n\
		stwu	1, -48(1) \n\
		stw	3, 8(1) \n\
		stw	4, 12(1) \n\
		stw	5, 16(1) \n\
		stw	6, 20(1) \n\
		stw	7, 24(1) \n\
		stw	8, 28(1) \n\
		stw	9, 32(1) \n\
		stw	10,36(1) \n\
		stw	11,40(1) \n\
		mr	4, 0 \n\
		mr 	3, 11 \n\
		bl __mcount \n\
		lwz	3, 8(1) \n\
		lwz	4, 12(1) \n\
		lwz	5, 16(1) \n\
		lwz	6, 20(1) \n\
		lwz	7, 24(1) \n\
		lwz	8, 28(1) \n\
		lwz	9, 32(1) \n\
		lwz	10,36(1) \n\
		lwz	11,40(1) \n\
		addi	1, 1, 48 \n\
		lwz	0, 4(1) \n\
		mtlr	11 \n\
		stw	11, 4(1) \n\
		mtctr	0 \n\
		bctr \n\
	.Lfe2: \n\
		.size _mcount, .Lfe2-_mcount \n\
	");
#define _MCOUNT_DECL static void __mcount
#ifdef _KERNEL
#define MCOUNT_ENTER						\
	__asm volatile("mfmsr %0" : "=r"(s));			\
	if ((s & (PSL_IR | PSL_DR)) != (PSL_IR | PSL_DR))	\
		return;	/* prof not possible in real mode */	\
	s &= ~PSL_POW;						\
	__asm volatile("mtmsr %0" :: "r"(s & ~PSL_EE))

#define	MCOUNT_EXIT						\
	__asm volatile("mtmsr %0" :: "r"(s))
#endif /* _KERNEL */