aboutsummaryrefslogtreecommitdiff
path: root/arch/s390/include/asm/setup.h
blob: 40eb2ff88e9e59766cc7e1ba931e65a303e06a16 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
/*
 *  include/asm-s390/setup.h
 *
 *  S390 version
 *    Copyright IBM Corp. 1999,2010
 */

#ifndef _ASM_S390_SETUP_H
#define _ASM_S390_SETUP_H

#define COMMAND_LINE_SIZE	4096

#define ARCH_COMMAND_LINE_SIZE	896

#ifdef __KERNEL__

#define PARMAREA		0x10400
#define MEMORY_CHUNKS		256

#ifndef __ASSEMBLY__

#include <asm/lowcore.h>
#include <asm/types.h>

#ifndef CONFIG_64BIT
#define IPL_DEVICE        (*(unsigned long *)  (0x10404))
#define INITRD_START      (*(unsigned long *)  (0x1040C))
#define INITRD_SIZE       (*(unsigned long *)  (0x10414))
#define OLDMEM_BASE	  (*(unsigned long *)  (0x1041C))
#define OLDMEM_SIZE	  (*(unsigned long *)  (0x10424))
#else /* CONFIG_64BIT */
#define IPL_DEVICE        (*(unsigned long *)  (0x10400))
#define INITRD_START      (*(unsigned long *)  (0x10408))
#define INITRD_SIZE       (*(unsigned long *)  (0x10410))
#define OLDMEM_BASE	  (*(unsigned long *)  (0x10418))
#define OLDMEM_SIZE	  (*(unsigned long *)  (0x10420))
#endif /* CONFIG_64BIT */
#define COMMAND_LINE      ((char *)            (0x10480))

#define CHUNK_READ_WRITE 0
#define CHUNK_READ_ONLY  1
#define CHUNK_OLDMEM	 4
#define CHUNK_CRASHK	 5

struct mem_chunk {
	unsigned long addr;
	unsigned long size;
	int type;
};

extern struct mem_chunk memory_chunk[];
extern unsigned long real_memory_size;
extern int memory_end_set;
extern unsigned long memory_end;

void detect_memory_layout(struct mem_chunk chunk[]);
void create_mem_hole(struct mem_chunk memory_chunk[], unsigned long addr,
		     unsigned long size, int type);

#define PRIMARY_SPACE_MODE	0
#define ACCESS_REGISTER_MODE	1
#define SECONDARY_SPACE_MODE	2
#define HOME_SPACE_MODE		3

extern unsigned int user_mode;

/*
 * Machine features detected in head.S
 */

#define MACHINE_FLAG_VM		(1UL << 0)
#define MACHINE_FLAG_IEEE	(1UL << 1)
#define MACHINE_FLAG_CSP	(1UL << 3)
#define MACHINE_FLAG_MVPG	(1UL << 4)
#define MACHINE_FLAG_DIAG44	(1UL << 5)
#define MACHINE_FLAG_IDTE	(1UL << 6)
#define MACHINE_FLAG_DIAG9C	(1UL << 7)
#define MACHINE_FLAG_MVCOS	(1UL << 8)
#define MACHINE_FLAG_KVM	(1UL << 9)
#define MACHINE_FLAG_HPAGE	(1UL << 10)
#define MACHINE_FLAG_PFMF	(1UL << 11)
#define MACHINE_FLAG_LPAR	(1UL << 12)
#define MACHINE_FLAG_SPP	(1UL << 13)
#define MACHINE_FLAG_TOPOLOGY	(1UL << 14)

#define MACHINE_IS_VM		(S390_lowcore.machine_flags & MACHINE_FLAG_VM)
#define MACHINE_IS_KVM		(S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
#define MACHINE_IS_LPAR		(S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)

#define MACHINE_HAS_DIAG9C	(S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)

#ifndef CONFIG_64BIT
#define MACHINE_HAS_IEEE	(S390_lowcore.machine_flags & MACHINE_FLAG_IEEE)
#define MACHINE_HAS_CSP		(S390_lowcore.machine_flags & MACHINE_FLAG_CSP)
#define MACHINE_HAS_IDTE	(0)
#define MACHINE_HAS_DIAG44	(1)
#define MACHINE_HAS_MVPG	(S390_lowcore.machine_flags & MACHINE_FLAG_MVPG)
#define MACHINE_HAS_MVCOS	(0)
#define MACHINE_HAS_HPAGE	(0)
#define MACHINE_HAS_PFMF	(0)
#define MACHINE_HAS_SPP		(0)
#define MACHINE_HAS_TOPOLOGY	(0)
#else /* CONFIG_64BIT */
#define MACHINE_HAS_IEEE	(1)
#define MACHINE_HAS_CSP		(1)
#define MACHINE_HAS_IDTE	(S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
#define MACHINE_HAS_DIAG44	(S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
#define MACHINE_HAS_MVPG	(1)
#define MACHINE_HAS_MVCOS	(S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
#define MACHINE_HAS_HPAGE	(S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE)
#define MACHINE_HAS_PFMF	(S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
#define MACHINE_HAS_SPP		(S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
#define MACHINE_HAS_TOPOLOGY	(S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
#endif /* CONFIG_64BIT */

#define ZFCPDUMP_HSA_SIZE	(32UL<<20)
#define ZFCPDUMP_HSA_SIZE_MAX	(64UL<<20)

/*
 * Console mode. Override with conmode=
 */
extern unsigned int console_mode;
extern unsigned int console_devno;
extern unsigned int console_irq;

extern char vmhalt_cmd[];
extern char vmpoff_cmd[];

#define CONSOLE_IS_UNDEFINED	(console_mode == 0)
#define CONSOLE_IS_SCLP		(console_mode == 1)
#define CONSOLE_IS_3215		(console_mode == 2)
#define CONSOLE_IS_3270		(console_mode == 3)
#define SET_CONSOLE_SCLP	do { console_mode = 1; } while (0)
#define SET_CONSOLE_3215	do { console_mode = 2; } while (0)
#define SET_CONSOLE_3270	do { console_mode = 3; } while (0)

#define NSS_NAME_SIZE	8
extern char kernel_nss_name[];

#ifdef CONFIG_PFAULT
extern int pfault_init(void);
extern void pfault_fini(void);
#else /* CONFIG_PFAULT */
#define pfault_init()		({-1;})
#define pfault_fini()		do { } while (0)
#endif /* CONFIG_PFAULT */

extern void cmma_init(void);

extern void (*_machine_restart)(char *command);
extern void (*_machine_halt)(void);
extern void (*_machine_power_off)(void);

#else /* __ASSEMBLY__ */

#ifndef CONFIG_64BIT
#define IPL_DEVICE        0x10404
#define INITRD_START      0x1040C
#define INITRD_SIZE       0x10414
#define OLDMEM_BASE	  0x1041C
#define OLDMEM_SIZE	  0x10424
#else /* CONFIG_64BIT */
#define IPL_DEVICE        0x10400
#define INITRD_START      0x10408
#define INITRD_SIZE       0x10410
#define OLDMEM_BASE	  0x10418
#define OLDMEM_SIZE	  0x10420
#endif /* CONFIG_64BIT */
#define COMMAND_LINE      0x10480

#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_S390_SETUP_H */