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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: asm.h,v 1.1 2005/04/01 10:40:48 mickey Exp $	*/

/* 
 * Copyright (c) 1990,1991,1994 The University of Utah and
 * the Computer Systems Laboratory (CSL).  All rights reserved.
 *
 * Permission to use, copy, modify and distribute this software is hereby
 * granted provided that (1) source code retains these copyright, permission,
 * and disclaimer notices, and (2) redistributions including binaries
 * reproduce the notices in supporting documentation, and (3) all advertising
 * materials mentioning features or use of this software display the following
 * acknowledgement: ``This product includes software developed by the
 * Computer Systems Laboratory at the University of Utah.''
 *
 * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
 * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
 * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * CSL requests users of this software to return to csl-dist@cs.utah.edu any
 * improvements that they make and grant CSL redistribution rights.
 *
 *	Utah $Hdr: asm.h 1.8 94/12/14$
 */

#ifndef _MACHINE_ASM_H_
#define _MACHINE_ASM_H_

/*
 *	hppa assembler definitions
 */

arg7	.reg	%r19
arg6	.reg	%r20
arg5	.reg	%r21
arg4	.reg	%r22
ap	.reg	%r29

#ifdef __STDC__
#define	__CONCAT(a,b)	a ## b
#else
#define	__CONCAT(a,b)	a/**/b
#endif

#ifdef PROF
#define	_PROF_PROLOGUE				\
	stw	%rp, HPPA_FRAME_CRP(%sr0,%sp)	!\
	ldil	L%_mcount,%r1			!\
	ble	R%_mcount(%sr0,%r1)		!\
	ldo	HPPA_FRAME_SIZE(%sp),%sp	!\
	ldw 	PPA_FRAME_CRP(%sr0,%sp),%rp
#else
#define	_PROF_PROLOGUE
#endif

#define	LEAF_ENTRY(x) ! .text ! .align	4	!\
	.export	x, entry ! .label x ! .proc	!\
	.callinfo frame=0,no_calls,save_rp	!\
	.entry ! _PROF_PROLOGUE

#define	ENTRY(x,n) ! .text ! .align 4			!\
	.export	x, entry ! .label x ! .proc		!\
	.callinfo frame=n,calls, save_rp, save_sp	!\
	.entry ! _PROF_PROLOGUE

#define ALTENTRY(x) ! .export x, entry ! .label  x
#define EXIT(x) ! .exit ! .procend ! .size   x, .-x

#define	BSS(n,s)	! .data ! .label n ! .comm s

#endif /* _MACHINE_ASM_H_ */