Linux kernel mirror (for testing)
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1/*
2 * include/asm-s390/setup.h
3 *
4 * S390 version
5 * Copyright IBM Corp. 1999,2006
6 */
7
8#ifndef _ASM_S390_SETUP_H
9#define _ASM_S390_SETUP_H
10
11#define COMMAND_LINE_SIZE 896
12
13#ifdef __KERNEL__
14
15#include <asm/types.h>
16
17#define PARMAREA 0x10400
18#define MEMORY_CHUNKS 16 /* max 0x7fff */
19
20#ifndef __ASSEMBLY__
21
22#ifndef __s390x__
23#define IPL_DEVICE (*(unsigned long *) (0x10404))
24#define INITRD_START (*(unsigned long *) (0x1040C))
25#define INITRD_SIZE (*(unsigned long *) (0x10414))
26#else /* __s390x__ */
27#define IPL_DEVICE (*(unsigned long *) (0x10400))
28#define INITRD_START (*(unsigned long *) (0x10408))
29#define INITRD_SIZE (*(unsigned long *) (0x10410))
30#endif /* __s390x__ */
31#define COMMAND_LINE ((char *) (0x10480))
32
33#define CHUNK_READ_WRITE 0
34#define CHUNK_READ_ONLY 1
35
36struct mem_chunk {
37 unsigned long addr;
38 unsigned long size;
39 unsigned long type;
40};
41
42extern struct mem_chunk memory_chunk[];
43
44#ifdef CONFIG_S390_SWITCH_AMODE
45extern unsigned int switch_amode;
46#else
47#define switch_amode (0)
48#endif
49
50#ifdef CONFIG_S390_EXEC_PROTECT
51extern unsigned int s390_noexec;
52#else
53#define s390_noexec (0)
54#endif
55
56/*
57 * Machine features detected in head.S
58 */
59extern unsigned long machine_flags;
60
61#define MACHINE_IS_VM (machine_flags & 1)
62#define MACHINE_IS_P390 (machine_flags & 4)
63#define MACHINE_HAS_MVPG (machine_flags & 16)
64#define MACHINE_HAS_IDTE (machine_flags & 128)
65#define MACHINE_HAS_DIAG9C (machine_flags & 256)
66
67#ifndef __s390x__
68#define MACHINE_HAS_IEEE (machine_flags & 2)
69#define MACHINE_HAS_CSP (machine_flags & 8)
70#define MACHINE_HAS_DIAG44 (1)
71#define MACHINE_HAS_MVCOS (0)
72#else /* __s390x__ */
73#define MACHINE_HAS_IEEE (1)
74#define MACHINE_HAS_CSP (1)
75#define MACHINE_HAS_DIAG44 (machine_flags & 32)
76#define MACHINE_HAS_MVCOS (machine_flags & 512)
77#endif /* __s390x__ */
78
79#define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
80
81/*
82 * Console mode. Override with conmode=
83 */
84extern unsigned int console_mode;
85extern unsigned int console_devno;
86extern unsigned int console_irq;
87
88extern char vmhalt_cmd[];
89extern char vmpoff_cmd[];
90
91#define CONSOLE_IS_UNDEFINED (console_mode == 0)
92#define CONSOLE_IS_SCLP (console_mode == 1)
93#define CONSOLE_IS_3215 (console_mode == 2)
94#define CONSOLE_IS_3270 (console_mode == 3)
95#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
96#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
97#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
98
99#define NSS_NAME_SIZE 8
100extern char kernel_nss_name[];
101
102#else /* __ASSEMBLY__ */
103
104#ifndef __s390x__
105#define IPL_DEVICE 0x10404
106#define INITRD_START 0x1040C
107#define INITRD_SIZE 0x10414
108#else /* __s390x__ */
109#define IPL_DEVICE 0x10400
110#define INITRD_START 0x10408
111#define INITRD_SIZE 0x10410
112#endif /* __s390x__ */
113#define COMMAND_LINE 0x10480
114
115#endif /* __ASSEMBLY__ */
116#endif /* __KERNEL__ */
117#endif /* _ASM_S390_SETUP_H */