[apple/xnu.git] / bsd / dev / i386 / kern_machdep.c

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 *	Copyright (C) 1990,  NeXT, Inc.
 *
 *	File:	next/kern_machdep.c
 *	Author:	John Seamons
 *
 *	Machine-specific kernel routines.
 */

#include	<sys/types.h>
#include	<mach/machine.h>
#include	<kern/cpu_number.h>

extern int grade_binary(cpu_type_t exectype, cpu_subtype_t execsubtype);

/**********************************************************************
 * Routine:	grade_binary()
 *
 * Function:	Return a relative preference for exectypes and
 *		execsubtypes in fat executable files.  The higher the
 *		grade, the higher the preference.  A grade of 0 means
 *		not acceptable.
 **********************************************************************/
int
grade_binary(__unused cpu_type_t exectype, cpu_subtype_t execsubtype)
{
	int		cpusubtype = cpu_subtype();

	switch (cpusubtype) {
	    case CPU_SUBTYPE_386:
		switch (execsubtype) {
		    case CPU_SUBTYPE_386:
			return 1;
		    default:
			return 0;
		}

	    case CPU_SUBTYPE_486:
		switch (execsubtype) {
		    case CPU_SUBTYPE_386:
			return 1;

		    case CPU_SUBTYPE_486SX:
			return 2;

		    case CPU_SUBTYPE_486:
			return 3;

		    default:
			return 0;
		}

	    case CPU_SUBTYPE_486SX:
		switch (execsubtype) {
		    case CPU_SUBTYPE_386:
			return 1;

		    case CPU_SUBTYPE_486:
			return 2;

		    case CPU_SUBTYPE_486SX:
			return 3;

		    default:
			return 0;
		}

	    case CPU_SUBTYPE_586:
		switch (execsubtype) {
		    case CPU_SUBTYPE_386:
			return 1;

		    case CPU_SUBTYPE_486SX:
			return 2;

		    case CPU_SUBTYPE_486:
			return 3;

		    case CPU_SUBTYPE_586:
			return 4;

		    default:
			return 0;
		}

	    default:
		if (	CPU_SUBTYPE_INTEL_MODEL(execsubtype) ==
		    	CPU_SUBTYPE_INTEL_MODEL_ALL) {
		    if (	CPU_SUBTYPE_INTEL_FAMILY(cpusubtype) >=
				CPU_SUBTYPE_INTEL_FAMILY(execsubtype))
			return CPU_SUBTYPE_INTEL_FAMILY_MAX - 
			    CPU_SUBTYPE_INTEL_FAMILY(cpusubtype) -
			    CPU_SUBTYPE_INTEL_FAMILY(execsubtype);
		}
		else {
		    if (	cpusubtype == execsubtype)
			return CPU_SUBTYPE_INTEL_FAMILY_MAX + 1;
		}
		return 0;
	}
}

extern void md_prepare_for_shutdown(int, int, char *);

void
md_prepare_for_shutdown(
	__unused int paniced,
	__unused int howto,
	__unused char * command)
{
}
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
e5568f75 A	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.
1c79356b	11	*
e5568f75 A	12	* This Original Code and all software distributed under the License are
e5568f75 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
e5568f75 A	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.
1c79356b A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* Copyright (C) 1990, NeXT, Inc.
	24	*
	25	* File: next/kern_machdep.c
	26	* Author: John Seamons
	27	*
	28	* Machine-specific kernel routines.
1c79356b A	29	*/
	30
	31	#include <sys/types.h>
	32	#include <mach/machine.h>
	33	#include <kern/cpu_number.h>
	34
91447636	35	extern int grade_binary(cpu_type_t exectype, cpu_subtype_t execsubtype);
1c79356b A	36
1c79356b A	37	/**********************************************************************
91447636	38	* Routine: grade_binary()
1c79356b	39	*
91447636 A	40	* Function: Return a relative preference for exectypes and
	41	* execsubtypes in fat executable files. The higher the
	42	* grade, the higher the preference. A grade of 0 means
	43	* not acceptable.
1c79356b	44	**********************************************************************/
91447636 A	45	int
91447636 A	46	grade_binary(__unused cpu_type_t exectype, cpu_subtype_t execsubtype)
1c79356b	47	{
91447636	48	int cpusubtype = cpu_subtype();
1c79356b	49
91447636	50	switch (cpusubtype) {
1c79356b	51	case CPU_SUBTYPE_386:
91447636	52	switch (execsubtype) {
1c79356b A	53	case CPU_SUBTYPE_386:
	54	return 1;
	55	default:
	56	return 0;
	57	}
	58
	59	case CPU_SUBTYPE_486:
91447636	60	switch (execsubtype) {
1c79356b A	61	case CPU_SUBTYPE_386:
	62	return 1;
	63
	64	case CPU_SUBTYPE_486SX:
	65	return 2;
	66
	67	case CPU_SUBTYPE_486:
	68	return 3;
	69
	70	default:
	71	return 0;
	72	}
	73
	74	case CPU_SUBTYPE_486SX:
91447636	75	switch (execsubtype) {
1c79356b A	76	case CPU_SUBTYPE_386:
	77	return 1;
	78
	79	case CPU_SUBTYPE_486:
	80	return 2;
	81
	82	case CPU_SUBTYPE_486SX:
	83	return 3;
	84
	85	default:
	86	return 0;
	87	}
	88
	89	case CPU_SUBTYPE_586:
91447636	90	switch (execsubtype) {
1c79356b A	91	case CPU_SUBTYPE_386:
	92	return 1;
	93
	94	case CPU_SUBTYPE_486SX:
	95	return 2;
	96
	97	case CPU_SUBTYPE_486:
	98	return 3;
	99
	100	case CPU_SUBTYPE_586:
	101	return 4;
	102
	103	default:
	104	return 0;
	105	}
	106
	107	default:
91447636	108	if ( CPU_SUBTYPE_INTEL_MODEL(execsubtype) ==
1c79356b	109	CPU_SUBTYPE_INTEL_MODEL_ALL) {
91447636 A	110	if ( CPU_SUBTYPE_INTEL_FAMILY(cpusubtype) >=
91447636 A	111	CPU_SUBTYPE_INTEL_FAMILY(execsubtype))
1c79356b	112	return CPU_SUBTYPE_INTEL_FAMILY_MAX -
91447636 A	113	CPU_SUBTYPE_INTEL_FAMILY(cpusubtype) -
91447636 A	114	CPU_SUBTYPE_INTEL_FAMILY(execsubtype);
1c79356b A	115	}
1c79356b A	116	else {
91447636	117	if ( cpusubtype == execsubtype)
1c79356b A	118	return CPU_SUBTYPE_INTEL_FAMILY_MAX + 1;
	119	}
	120	return 0;
	121	}
	122	}
91447636 A	123
	124	extern void md_prepare_for_shutdown(int, int, char *);
	125
	126	void
	127	md_prepare_for_shutdown(
	128	__unused int paniced,
	129	__unused int howto,
	130	__unused char * command)
	131	{
	132	}