[apple/xnu.git] / osfmk / ppc / aligned_data.s

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * 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@
 */
/*
 *		This module only exists because I don't know how to get the silly C compiler
 *		and/or linker to generate data areas that are aligned on a particular boundary.
 *		And, this stuff is in the V=R mapped area.
 *
 *		Do the following for each:
 *
 *				.size	name,size-in-bytes
 *				.type	area-name,@object
 *				.globl	area-name
 *				.align 	power-of-two
 *		area-name:
 *				.set	.,.+size-in-bytes
 *
 *		So long as I'm being pedantic, always make sure that the most aligned,
 *		i.e., the largest power-of-twos, are first and then descend to the smallest.
 *		If you don't, and you are not careful and hand calculate, you'll end up
 *		with holes and waste storage.  I hate C.
 *
 *		Define the sizes in genassym.c
 */
 
		
#include <debug.h>
#include <cpus.h>
#include <ppc/asm.h>
#include <ppc/proc_reg.h>
#include <ppc/spec_reg.h>
#include <mach/ppc/vm_param.h>
#include <assym.s>

;
;		NOTE: We need this only if PREEMPTSTACK is set to non-zero in hw_lock.
;		Make sure they are set to the same thing
;
#define PREEMPTSTACK 0

			.data

/*		4096-byte aligned areas */

		.globl	EXT(per_proc_info)
		.align	12
EXT(per_proc_info):									; Per processor data area
		.space	(ppSize*NCPUS),0				; (filled with 0s)

/*		512-byte aligned areas */

		.globl	EXT(kernel_pmap_store)				; This is the kernel_pmap
		.align	8
EXT(kernel_pmap_store):
		.set	.,.+pmapSize


/*		256-byte aligned areas */

		.globl	EXT(GratefulDebWork)
		.align	8
EXT(GratefulDebWork):								; Enough for 2 rows of 8 chars of 16-pixel wide 32-bit pixels and a 256 byte work area
		.set	.,.+2560

		.globl	debstash
		.align	8
debstash:
		.set	.,.+256

#if PREEMPTSTACK

;
;		NOTE: We need this only if PREEMPTSTACK is set to non-zero in hw_lock.
;

		.globl	EXT(DBGpreempt)						; preemption debug stack
		.align	8
EXT(DBGpreempt):
		.set	.,.+(NCPUS*PREEMPTSTACK*16)
#endif


/*		128-byte aligned areas */

		.globl	EXT(mapCtl)
		.align	7
EXT(mapCtl):
		.set	.,.+mapcsize

		.globl	fwdisplock
		.align	7
fwdisplock:
		.set	.,.+128

		.globl	EXT(free_mappings)
		.align	7
	
EXT(free_mappings):
		.long	0

		.globl	EXT(syncClkSpot)
		.align	7
EXT(syncClkSpot):
		.long	0
		.long	0
		.long	0
		.long	0
		.long	0
		.long	0
		.long	0
		.long	0
	
		.globl	EXT(NMIss)
		.align	7
EXT(NMIss):
		.long	0
		.long	0
		.long	0
		.long	0
		.long	0
		.long	0
		.long	0
		.long	0

/*		32-byte aligned areas */

		.globl	EXT(dbvecs)
		.align	5
EXT(dbvecs):
		.set	.,.+(33*16)

		.globl	hexfont
		.align	5
#include <ppc/hexfont.h>

    	.globl  EXT(QNaNbarbarian)
		.align	5

EXT(QNaNbarbarian):
		.long	0x7FFFDEAD							/* This is a quiet not-a-number which is a "known" debug value */
		.long	0x7FFFDEAD							/* This is a quiet not-a-number which is a "known" debug value */
		.long	0x7FFFDEAD							/* This is a quiet not-a-number which is a "known" debug value */
		.long	0x7FFFDEAD							/* This is a quiet not-a-number which is a "known" debug value */
	
		.long	0x7FFFDEAD							/* This is a quiet not-a-number which is a "known" debug value */
		.long	0x7FFFDEAD							/* This is a quiet not-a-number which is a "known" debug value */
		.long	0x7FFFDEAD							/* This is a quiet not-a-number which is a "known" debug value */
		.long	0x7FFFDEAD							/* This is a quiet not-a-number which is a "known" debug value */

/*		8-byte aligned areas */

    	.globl  EXT(FloatInit)
		.align	3

EXT(FloatInit):
		.long	0xC24BC195							/* Initial value */
		.long	0x87859393							/* of floating point registers */
		.long	0xE681A2C8							/* and others */
		.long	0x8599855A

		.globl  EXT(DebugWork)
		.align	3

EXT(DebugWork):
		.long	0
		.long	0
		.long	0
		.long	0

    	.globl  EXT(dbfloats)
		.align	3
EXT(dbfloats):
		.set	.,.+(33*8)

		.globl  EXT(dbspecrs)
		.align	3
EXT(dbspecrs):
		.set	.,.+(80*4)

/*
 *		Interrupt and debug stacks go here
 */
 	
		.align  PPC_PGSHIFT
     	.globl  EXT(FixedStackStart)
EXT(FixedStackStart):
     
	 	.globl  EXT(intstack)
EXT(intstack):
		.set	.,.+INTSTACK_SIZE*NCPUS
	
/* Debugger stack - used by the debugger if present */
/* NOTE!!! Keep the debugger stack right after the interrupt stack */

    	.globl  EXT(debstack)
EXT(debstack):
		.set	., .+KERNEL_STACK_SIZE*NCPUS
     
		 .globl  EXT(FixedStackEnd)
EXT(FixedStackEnd):

		.align	ALIGN
   		.globl  EXT(intstack_top_ss)
EXT(intstack_top_ss):
		.long	EXT(intstack)+INTSTACK_SIZE-FM_SIZE			/* intstack_top_ss points to the top of interrupt stack */

		.align	ALIGN
   	 	.globl  EXT(debstack_top_ss)	
EXT(debstack_top_ss):

		.long	EXT(debstack)+KERNEL_STACK_SIZE-FM_SIZE		/* debstack_top_ss points to the top of debug stack */

    	.globl  EXT(debstackptr)
EXT(debstackptr):	
		.long	EXT(debstack)+KERNEL_STACK_SIZE-FM_SIZE
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
43866e37	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
1c79356b	7	*
43866e37 A	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
43866e37 A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
1c79356b A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
	25	/*
	26	* This module only exists because I don't know how to get the silly C compiler
	27	* and/or linker to generate data areas that are aligned on a particular boundary.
	28	* And, this stuff is in the V=R mapped area.
	29	*
	30	* Do the following for each:
	31	*
	32	* .size name,size-in-bytes
	33	* .type area-name,@object
	34	* .globl area-name
	35	* .align power-of-two
	36	* area-name:
	37	* .set .,.+size-in-bytes
	38	*
	39	* So long as I'm being pedantic, always make sure that the most aligned,
	40	* i.e., the largest power-of-twos, are first and then descend to the smallest.
	41	* If you don't, and you are not careful and hand calculate, you'll end up
	42	* with holes and waste storage. I hate C.
	43	*
	44	* Define the sizes in genassym.c
	45	*/
	46
	47
	48	#include <debug.h>
	49	#include <cpus.h>
	50	#include <ppc/asm.h>
	51	#include <ppc/proc_reg.h>
55e303ae A	52	#include <ppc/spec_reg.h>
55e303ae A	53	#include <mach/ppc/vm_param.h>
1c79356b A	54	#include <assym.s>
	55
	56	;
	57	; NOTE: We need this only if PREEMPTSTACK is set to non-zero in hw_lock.
	58	; Make sure they are set to the same thing
	59	;
	60	#define PREEMPTSTACK 0
	61
	62	.data
	63
55e303ae	64	/* 4096-byte aligned areas */
1c79356b A	65
1c79356b A	66	.globl EXT(per_proc_info)
55e303ae	67	.align 12
1c79356b	68	EXT(per_proc_info): ; Per processor data area
55e303ae	69	.space (ppSize*NCPUS),0 ; (filled with 0s)
1c79356b A	70
	71	/* 512-byte aligned areas */
	72
	73	.globl EXT(kernel_pmap_store) ; This is the kernel_pmap
	74	.align 8
	75	EXT(kernel_pmap_store):
55e303ae	76	.set .,.+pmapSize
1c79356b A	77
	78
	79	/* 256-byte aligned areas */
	80
	81	.globl EXT(GratefulDebWork)
	82	.align 8
	83	EXT(GratefulDebWork): ; Enough for 2 rows of 8 chars of 16-pixel wide 32-bit pixels and a 256 byte work area
	84	.set .,.+2560
	85
	86	.globl debstash
	87	.align 8
	88	debstash:
	89	.set .,.+256
	90
1c79356b A	91	#if PREEMPTSTACK
	92
	93	;
	94	; NOTE: We need this only if PREEMPTSTACK is set to non-zero in hw_lock.
	95	;
	96
	97	.globl EXT(DBGpreempt) ; preemption debug stack
	98	.align 8
	99	EXT(DBGpreempt):
	100	.set .,.+(NCPUSPREEMPTSTACK16)
	101	#endif
	102
	103
9bccf70c	104	/* 128-byte aligned areas */
1c79356b	105
1c79356b	106	.globl EXT(mapCtl)
9bccf70c	107	.align 7
1c79356b A	108	EXT(mapCtl):
	109	.set .,.+mapcsize
	110
1c79356b	111	.globl fwdisplock
9bccf70c	112	.align 7
1c79356b	113	fwdisplock:
9bccf70c A	114	.set .,.+128
	115
	116	.globl EXT(free_mappings)
	117	.align 7
	118
	119	EXT(free_mappings):
	120	.long 0
	121
	122	.globl EXT(syncClkSpot)
	123	.align 7
	124	EXT(syncClkSpot):
	125	.long 0
	126	.long 0
	127	.long 0
	128	.long 0
	129	.long 0
	130	.long 0
	131	.long 0
	132	.long 0
	133
	134	.globl EXT(NMIss)
	135	.align 7
	136	EXT(NMIss):
	137	.long 0
	138	.long 0
	139	.long 0
	140	.long 0
	141	.long 0
	142	.long 0
	143	.long 0
	144	.long 0
	145
	146	/* 32-byte aligned areas */
	147
	148	.globl EXT(dbvecs)
	149	.align 5
	150	EXT(dbvecs):
	151	.set .,.+(33*16)
1c79356b A	152
	153	.globl hexfont
	154	.align 5
	155	#include <ppc/hexfont.h>
	156
9bccf70c A	157	.globl EXT(QNaNbarbarian)
9bccf70c A	158	.align 5
1c79356b A	159
1c79356b A	160	EXT(QNaNbarbarian):
9bccf70c A	161	.long 0x7FFFDEAD /* This is a quiet not-a-number which is a "known" debug value */
	162	.long 0x7FFFDEAD /* This is a quiet not-a-number which is a "known" debug value */
	163	.long 0x7FFFDEAD /* This is a quiet not-a-number which is a "known" debug value */
	164	.long 0x7FFFDEAD /* This is a quiet not-a-number which is a "known" debug value */
1c79356b	165
9bccf70c A	166	.long 0x7FFFDEAD /* This is a quiet not-a-number which is a "known" debug value */
	167	.long 0x7FFFDEAD /* This is a quiet not-a-number which is a "known" debug value */
	168	.long 0x7FFFDEAD /* This is a quiet not-a-number which is a "known" debug value */
	169	.long 0x7FFFDEAD /* This is a quiet not-a-number which is a "known" debug value */
1c79356b	170
1c79356b A	171	/* 8-byte aligned areas */
1c79356b A	172
9bccf70c A	173	.globl EXT(FloatInit)
9bccf70c A	174	.align 3
1c79356b A	175
1c79356b A	176	EXT(FloatInit):
9bccf70c A	177	.long 0xC24BC195 /* Initial value */
	178	.long 0x87859393 /* of floating point registers */
	179	.long 0xE681A2C8 /* and others */
	180	.long 0x8599855A
1c79356b	181
9bccf70c A	182	.globl EXT(DebugWork)
9bccf70c A	183	.align 3
1c79356b A	184
1c79356b A	185	EXT(DebugWork):
9bccf70c A	186	.long 0
	187	.long 0
	188	.long 0
	189	.long 0
1c79356b	190
9bccf70c A	191	.globl EXT(dbfloats)
9bccf70c A	192	.align 3
1c79356b A	193	EXT(dbfloats):
	194	.set .,.+(33*8)
	195
9bccf70c A	196	.globl EXT(dbspecrs)
9bccf70c A	197	.align 3
1c79356b A	198	EXT(dbspecrs):
1c79356b A	199	.set .,.+(80*4)
55e303ae A	200
	201	/*
	202	* Interrupt and debug stacks go here
	203	*/
	204
	205	.align PPC_PGSHIFT
	206	.globl EXT(FixedStackStart)
	207	EXT(FixedStackStart):
	208
	209	.globl EXT(intstack)
	210	EXT(intstack):
	211	.set .,.+INTSTACK_SIZE*NCPUS
	212
	213	/* Debugger stack - used by the debugger if present */
	214	/* NOTE!!! Keep the debugger stack right after the interrupt stack */
	215
	216	.globl EXT(debstack)
	217	EXT(debstack):
	218	.set ., .+KERNEL_STACK_SIZE*NCPUS
	219
	220	.globl EXT(FixedStackEnd)
	221	EXT(FixedStackEnd):
	222
	223	.align ALIGN
	224	.globl EXT(intstack_top_ss)
	225	EXT(intstack_top_ss):
	226	.long EXT(intstack)+INTSTACK_SIZE-FM_SIZE /* intstack_top_ss points to the top of interrupt stack */
	227
	228	.align ALIGN
	229	.globl EXT(debstack_top_ss)
	230	EXT(debstack_top_ss):
	231
	232	.long EXT(debstack)+KERNEL_STACK_SIZE-FM_SIZE /* debstack_top_ss points to the top of debug stack */
	233
	234	.globl EXT(debstackptr)
	235	EXT(debstackptr):
	236	.long EXT(debstack)+KERNEL_STACK_SIZE-FM_SIZE
	237