aboutsummaryrefslogtreecommitdiffstats
path: root/arch/s390/include/asm/setup.h
blob: 2bd9faeb3919a0a3b7fae325769c3042db144d44 (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
/*
 *  include/asm-s390/setup.h
 *
 *  S390 version
 *    Copyright IBM Corp. 1999,2006
 */

#ifndef _ASM_S390_SETUP_H
#define _ASM_S390_SETUP_H

#define COMMAND_LINE_SIZE	1024

#define ARCH_COMMAND_LINE_SIZE	896

#ifdef __KERNEL__

#include <asm/types.h>

#define PARMAREA		0x10400
#define MEMORY_CHUNKS		256

#ifndef __ASSEMBLY__

#ifndef __s390x__
#define IPL_DEVICE        (*(unsigned long *)  (0x10404))
#define INITRD_START      (*(unsigned long *)  (0x1040C))
#define INITRD_SIZE       (*(unsigned long *)  (0x10414))
#else /* __s390x__ */
#define IPL_DEVICE        (*(unsigned long *)  (0x10400))
#define INITRD_START      (*(unsigned long *)  (0x10408))
#define INITRD_SIZE       (*(unsigned long *)  (0x10410))
#endif /* __s390x__ */
#define COMMAND_LINE      ((char *)            (0x10480))

#define CHUNK_READ_WRITE 0
#define CHUNK_READ_ONLY  1

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

extern struct mem_chunk memory_chunk[];
extern unsigned long real_memory_size;

void detect_memory_layout(struct mem_chunk chunk[]);

#ifdef CONFIG_S390_SWITCH_AMODE
extern unsigned int switch_amode;
#else
#define switch_amode	(0)
#endif

#ifdef CONFIG_S390_EXEC_PROTECT
extern unsigned int s390_noexec;
#else
#define s390_noexec	(0)
#endif

/*
 * Machine features detected in head.S
 */
extern unsigned long machine_flags;

#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_IS_VM		(machine_flags & MACHINE_FLAG_VM)
#define MACHINE_IS_KVM		(machine_flags & MACHINE_FLAG_KVM)
#define MACHINE_HAS_DIAG9C	(machine_flags & MACHINE_FLAG_DIAG9C)

#ifndef __s390x__
#define MACHINE_HAS_IEEE	(machine_flags & MACHINE_FLAG_IEEE)
#define MACHINE_HAS_CSP		(machine_flags & MACHINE_FLAG_CSP)
#define MACHINE_HAS_IDTE	(0)
#define MACHINE_HAS_DIAG44	(1)
#define MACHINE_HAS_MVPG	(machine_flags & MACHINE_FLAG_MVPG)
#define MACHINE_HAS_MVCOS	(0)
#define MACHINE_HAS_HPAGE	(0)
#define MACHINE_HAS_PFMF	(0)
#else /* __s390x__ */
#define MACHINE_HAS_IEEE	(1)
#define MACHINE_HAS_CSP		(1)
#define MACHINE_HAS_IDTE	(machine_flags & MACHINE_FLAG_IDTE)
#define MACHINE_HAS_DIAG44	(machine_flags & MACHINE_FLAG_DIAG44)
#define MACHINE_HAS_MVPG	(1)
#define MACHINE_HAS_MVCOS	(machine_flags & MACHINE_FLAG_MVCOS)
#define MACHINE_HAS_HPAGE	(machine_flags & MACHINE_FLAG_HPAGE)
#define MACHINE_HAS_PFMF	(machine_flags & MACHINE_FLAG_PFMF)
#endif /* __s390x__ */

#define ZFCPDUMP_HSA_SIZE	(32UL<<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[];

#else /* __ASSEMBLY__ */

#ifndef __s390x__
#define IPL_DEVICE        0x10404
#define INITRD_START      0x1040C
#define INITRD_SIZE       0x10414
#else /* __s390x__ */
#define IPL_DEVICE        0x10400
#define INITRD_START      0x10408
#define INITRD_SIZE       0x10410
#endif /* __s390x__ */
#define COMMAND_LINE      0x10480

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

Privacy Policy