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

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The 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, QUIET ENJOYMENT 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	*
ff6e181a A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. Please obtain a copy of the License at
	10	* http://www.opensource.apple.com/apsl/ and read it before using this
	11	* file.
1c79356b	12	*
ff6e181a A	13	* The Original Code and all software distributed under the License are
ff6e181a A	14	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	15	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	16	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
ff6e181a A	17	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	18	* Please see the License for the specific language governing rights and
	19	* limitations under the License.
1c79356b A	20	*
	21	* @APPLE_LICENSE_HEADER_END@
	22	*/
	23	/*
	24	* Copyright (C) 1990, NeXT, Inc.
	25	*
	26	* File: next/kern_machdep.c
	27	* Author: John Seamons
	28	*
	29	* Machine-specific kernel routines.
1c79356b A	30	*/
	31
	32	#include <sys/types.h>
	33	#include <mach/machine.h>
	34	#include <kern/cpu_number.h>
	35
91447636	36	extern int grade_binary(cpu_type_t exectype, cpu_subtype_t execsubtype);
1c79356b A	37
1c79356b A	38	/**********************************************************************
91447636	39	* Routine: grade_binary()
1c79356b	40	*
91447636 A	41	* Function: Return a relative preference for exectypes and
	42	* execsubtypes in fat executable files. The higher the
	43	* grade, the higher the preference. A grade of 0 means
	44	* not acceptable.
1c79356b	45	**********************************************************************/
91447636 A	46	int
91447636 A	47	grade_binary(__unused cpu_type_t exectype, cpu_subtype_t execsubtype)
1c79356b	48	{
91447636	49	int cpusubtype = cpu_subtype();
1c79356b	50
91447636	51	switch (cpusubtype) {
1c79356b	52	case CPU_SUBTYPE_386:
91447636	53	switch (execsubtype) {
1c79356b A	54	case CPU_SUBTYPE_386:
	55	return 1;
	56	default:
	57	return 0;
	58	}
	59
	60	case CPU_SUBTYPE_486:
91447636	61	switch (execsubtype) {
1c79356b A	62	case CPU_SUBTYPE_386:
	63	return 1;
	64
	65	case CPU_SUBTYPE_486SX:
	66	return 2;
	67
	68	case CPU_SUBTYPE_486:
	69	return 3;
	70
	71	default:
	72	return 0;
	73	}
	74
	75	case CPU_SUBTYPE_486SX:
91447636	76	switch (execsubtype) {
1c79356b A	77	case CPU_SUBTYPE_386:
	78	return 1;
	79
	80	case CPU_SUBTYPE_486:
	81	return 2;
	82
	83	case CPU_SUBTYPE_486SX:
	84	return 3;
	85
	86	default:
	87	return 0;
	88	}
	89
	90	case CPU_SUBTYPE_586:
91447636	91	switch (execsubtype) {
1c79356b A	92	case CPU_SUBTYPE_386:
	93	return 1;
	94
	95	case CPU_SUBTYPE_486SX:
	96	return 2;
	97
	98	case CPU_SUBTYPE_486:
	99	return 3;
	100
	101	case CPU_SUBTYPE_586:
	102	return 4;
	103
	104	default:
	105	return 0;
	106	}
	107
	108	default:
91447636	109	if ( CPU_SUBTYPE_INTEL_MODEL(execsubtype) ==
1c79356b	110	CPU_SUBTYPE_INTEL_MODEL_ALL) {
91447636 A	111	if ( CPU_SUBTYPE_INTEL_FAMILY(cpusubtype) >=
91447636 A	112	CPU_SUBTYPE_INTEL_FAMILY(execsubtype))
1c79356b	113	return CPU_SUBTYPE_INTEL_FAMILY_MAX -
91447636 A	114	CPU_SUBTYPE_INTEL_FAMILY(cpusubtype) -
91447636 A	115	CPU_SUBTYPE_INTEL_FAMILY(execsubtype);
1c79356b A	116	}
1c79356b A	117	else {
91447636	118	if ( cpusubtype == execsubtype)
1c79356b A	119	return CPU_SUBTYPE_INTEL_FAMILY_MAX + 1;
	120	}
	121	return 0;
	122	}
	123	}
91447636 A	124
	125	extern void md_prepare_for_shutdown(int, int, char *);
	126
	127	void
	128	md_prepare_for_shutdown(
	129	__unused int paniced,
	130	__unused int howto,
	131	__unused char * command)
	132	{
	133	}