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[];
43extern unsigned long real_memory_size;
44
45#ifdef CONFIG_S390_SWITCH_AMODE
46extern unsigned int switch_amode;
47#else
48#define switch_amode (0)
49#endif
50
51#ifdef CONFIG_S390_EXEC_PROTECT
52extern unsigned int s390_noexec;
53#else
54#define s390_noexec (0)
55#endif
56
57/*
58 * Machine features detected in head.S
59 */
60extern unsigned long machine_flags;
61
62#define MACHINE_IS_VM (machine_flags & 1)
63#define MACHINE_IS_P390 (machine_flags & 4)
64#define MACHINE_HAS_MVPG (machine_flags & 16)
65#define MACHINE_HAS_IDTE (machine_flags & 128)
66#define MACHINE_HAS_DIAG9C (machine_flags & 256)
67
68#ifndef __s390x__
69#define MACHINE_HAS_IEEE (machine_flags & 2)
70#define MACHINE_HAS_CSP (machine_flags & 8)
71#define MACHINE_HAS_DIAG44 (1)
72#define MACHINE_HAS_MVCOS (0)
73#else /* __s390x__ */
74#define MACHINE_HAS_IEEE (1)
75#define MACHINE_HAS_CSP (1)
76#define MACHINE_HAS_DIAG44 (machine_flags & 32)
77#define MACHINE_HAS_MVCOS (machine_flags & 512)
78#endif /* __s390x__ */
79
80#define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
81#define ZFCPDUMP_HSA_SIZE (32UL<<20)
82
83/*
84 * Console mode. Override with conmode=
85 */
86extern unsigned int console_mode;
87extern unsigned int console_devno;
88extern unsigned int console_irq;
89
90extern char vmhalt_cmd[];
91extern char vmpoff_cmd[];
92
93#define CONSOLE_IS_UNDEFINED (console_mode == 0)
94#define CONSOLE_IS_SCLP (console_mode == 1)
95#define CONSOLE_IS_3215 (console_mode == 2)
96#define CONSOLE_IS_3270 (console_mode == 3)
97#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
98#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
99#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
100
101#define NSS_NAME_SIZE 8
102extern char kernel_nss_name[];
103
104#else /* __ASSEMBLY__ */
105
106#ifndef __s390x__
107#define IPL_DEVICE 0x10404
108#define INITRD_START 0x1040C
109#define INITRD_SIZE 0x10414
110#else /* __s390x__ */
111#define IPL_DEVICE 0x10400
112#define INITRD_START 0x10408
113#define INITRD_SIZE 0x10410
114#endif /* __s390x__ */
115#define COMMAND_LINE 0x10480
116
117#endif /* __ASSEMBLY__ */
118#endif /* __KERNEL__ */
119#endif /* _ASM_S390_SETUP_H */