1/*
2 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
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. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 *		Header files for the Low Memory Globals (lg)
30 */
31#ifndef	_LOW_MEMORY_GLOBALS_H_
32#define	_LOW_MEMORY_GLOBALS_H_
33
34#include <mach/mach_types.h>
35#include <mach/vm_types.h>
36#include <mach/machine/vm_types.h>
37#include <mach/vm_prot.h>
38#include <ppc/proc_reg.h>
39#include <ppc/savearea.h>
40#include <ppc/low_trace.h>
41#include <ppc/Diagnostics.h>
42#include <ppc/mappings.h>
43
44/*
45 * Don't change these structures unless you change the corresponding assembly code
46 * which is in lowmem_vectors.s
47 */
48
49/*
50 *	This is where we put constants, pointers, and data areas that must be accessed
51 *	quickly through assembler.  They are designed to be accessed directly with
52 *	absolute addresses, not via a base register.  This is a global area, and not
53 *	per processor.
54 */
55
56#pragma pack(4)								/* Make sure the structure stays as we defined it */
57typedef struct lowglo {
58
59	unsigned long	lgForceAddr[5*1024];	/* 0000 Force to page 5 */
60	unsigned char	lgVerCode[8];			/* 5000 System verification code */
61	unsigned long long lgZero;				/* 5008 Double constant 0 */
62	unsigned int	lgPPStart;				/* 5010 Start of per_proc blocks */
63	unsigned int    lgCHUDXNUfnStart;		/* 5014 CHUD XNU function glue table */
64	unsigned int	lgMckFlags;				/* 5018 Machine check flags */
65	unsigned int    lgVersion;				/* 501C Pointer to kernel version string */
66	uint64_t		lgPMWvaddr;				/* 5020 physical memory window virtual address */
67	uint64_t		lgUMWvaddr;				/* 5028 user memory window virtual address */
68	unsigned int	lgVMMforcedFeats;		/* 5030 VMM boot-args forced feature flags */
69	unsigned int	lgMaxDec;				/* 5034 Maximum decrementer we can set */
70	unsigned int	lgPmsCtlp;				/* 5038 Pointer to power management stepper control */
71	unsigned int	lgRsv03C[17];			/* 503C reserved */
72	traceWork		lgTrcWork;				/* 5080 Tracing control block - trcWork */
73	unsigned int	lgRsv0A0[24];			/* 50A0 reserved */
74	struct Saveanchor	lgSaveanchor;		/* 5100 Savearea anchor - saveanchor */
75	unsigned int	lgRsv140[16];			/* 5140 reserved */
76	unsigned int	lgTlbieLck;				/* 5180 TLBIE lock */
77	unsigned int	lgRsv184[31];			/* 5184 reserved - push to next line */
78	struct diagWork	lgdgWork;				/* 5200 Start of diagnostic work area */
79	unsigned int	lglcksWork;				/* 5220 lcks option */
80	unsigned int	lgRsv224[23];			/* 5224 reserved */
81	pcfg 			lgpPcfg[8];				/* 5280 Page configurations */
82	unsigned int	lgRst2A0[24];			/* 52A0 reserved */
83	unsigned int	lgKillResv;				/* 5300 line used to kill reservations */
84	unsigned int	lgKillResvpad[31];		/* 5304 pad reservation kill line */
85
86	unsigned int	lgRsv380[32];			/* 5380 - 5400 reserved  */
87
88	unsigned int	lgRsv400[32];			/* 5400 - 5480 reserved  */
89	uint32_t		lgKmodptr;		/* 0x5480 Pointer to kmod, debugging aid */
90	uint32_t		lgTransOff;		/* 0x5484 Pointer to kdp_trans_off, debugging aid */
91	uint32_t		lgReadIO;		/* 0x5488 Pointer to kdp_read_io, debugging aid */
92	uint32_t		lgDevSlot1;		/* 0x548C For developer use */
93	uint32_t		lgDevSlot2;		/* 0x5490 For developer use */
94	uint32_t		lgOSVersion;		/* 0x5494 Pointer to OS version string */
95	uint32_t		lgRebootFlag;		/* 0x5498 Pointer to debugger reboot trigger */
96	uint32_t		lgRsv49C[729];		/* 0x549C Reserved - push to 1 page */
97} lowglo;
98
99extern lowglo lowGlo;
100
101#endif /* _LOW_MEMORY_GLOBALS_H_ */
102