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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * include/asm-s390/setup.h
3 *
4 * S390 version
Heiko Carstens36a2bd42006-12-04 15:40:38 +01005 * Copyright IBM Corp. 1999,2006
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 */
7
8#ifndef _ASM_S390_SETUP_H
9#define _ASM_S390_SETUP_H
10
Adrian Bunk7d1362c2006-12-06 20:40:38 -080011#define COMMAND_LINE_SIZE 896
12
Heiko Carstens0defa3c2006-02-11 17:56:03 -080013#ifdef __KERNEL__
14
Heiko Carstens1e8e3382005-10-30 15:00:11 -080015#include <asm/types.h>
16
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#define PARMAREA 0x10400
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#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
Heiko Carstens36a2bd42006-12-04 15:40:38 +010033#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[];
Michael Holzheu411ed322007-04-27 16:01:49 +020043extern unsigned long real_memory_size;
Heiko Carstens36a2bd42006-12-04 15:40:38 +010044
Gerald Schaeferc1821c22007-02-05 21:18:17 +010045#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
Linus Torvalds1da177e2005-04-16 15:20:36 -070057/*
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)
Carsten Ottefa587742008-03-25 18:47:44 +010065#define MACHINE_IS_KVM (machine_flags & 64)
Linus Torvalds1da177e2005-04-16 15:20:36 -070066#define MACHINE_HAS_IDTE (machine_flags & 128)
Martin Schwidefsky3c1fcfe2006-09-30 23:27:45 -070067#define MACHINE_HAS_DIAG9C (machine_flags & 256)
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
69#ifndef __s390x__
70#define MACHINE_HAS_IEEE (machine_flags & 2)
71#define MACHINE_HAS_CSP (machine_flags & 8)
Heiko Carstensabdba612006-07-12 16:39:58 +020072#define MACHINE_HAS_DIAG44 (1)
Gerald Schaefer6c2a9e62006-09-20 15:59:44 +020073#define MACHINE_HAS_MVCOS (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -070074#else /* __s390x__ */
75#define MACHINE_HAS_IEEE (1)
76#define MACHINE_HAS_CSP (1)
Heiko Carstensabdba612006-07-12 16:39:58 +020077#define MACHINE_HAS_DIAG44 (machine_flags & 32)
Gerald Schaefer6c2a9e62006-09-20 15:59:44 +020078#define MACHINE_HAS_MVCOS (machine_flags & 512)
Linus Torvalds1da177e2005-04-16 15:20:36 -070079#endif /* __s390x__ */
80
Linus Torvalds1da177e2005-04-16 15:20:36 -070081#define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
Michael Holzheu411ed322007-04-27 16:01:49 +020082#define ZFCPDUMP_HSA_SIZE (32UL<<20)
Linus Torvalds1da177e2005-04-16 15:20:36 -070083
84/*
85 * Console mode. Override with conmode=
86 */
87extern unsigned int console_mode;
88extern unsigned int console_devno;
89extern unsigned int console_irq;
90
Heiko Carstens2b67fc42007-02-05 21:16:47 +010091extern char vmhalt_cmd[];
92extern char vmpoff_cmd[];
93
Linus Torvalds1da177e2005-04-16 15:20:36 -070094#define CONSOLE_IS_UNDEFINED (console_mode == 0)
95#define CONSOLE_IS_SCLP (console_mode == 1)
96#define CONSOLE_IS_3215 (console_mode == 2)
97#define CONSOLE_IS_3270 (console_mode == 3)
98#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
99#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
100#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
101
Hongjie Yangfe355b72007-02-05 21:18:24 +0100102#define NSS_NAME_SIZE 8
Hongjie Yangfe355b72007-02-05 21:18:24 +0100103extern char kernel_nss_name[];
104
Heiko Carstens0defa3c2006-02-11 17:56:03 -0800105#else /* __ASSEMBLY__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106
107#ifndef __s390x__
108#define IPL_DEVICE 0x10404
109#define INITRD_START 0x1040C
110#define INITRD_SIZE 0x10414
111#else /* __s390x__ */
112#define IPL_DEVICE 0x10400
113#define INITRD_START 0x10408
114#define INITRD_SIZE 0x10410
115#endif /* __s390x__ */
116#define COMMAND_LINE 0x10480
117
Heiko Carstens0defa3c2006-02-11 17:56:03 -0800118#endif /* __ASSEMBLY__ */
119#endif /* __KERNEL__ */
120#endif /* _ASM_S390_SETUP_H */