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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * include/asm-s390/setup.h
3 *
4 * S390 version
Carsten Ottecd3b70f2010-05-17 10:00:04 +02005 * Copyright IBM Corp. 1999,2010
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 */
7
8#ifndef _ASM_S390_SETUP_H
9#define _ASM_S390_SETUP_H
10
Hendrik Brueckner684d2fd2009-09-11 10:28:40 +020011#define COMMAND_LINE_SIZE 4096
Hendrik Bruecknera0443fb2008-07-14 09:59:09 +020012
13#define ARCH_COMMAND_LINE_SIZE 896
Adrian Bunk7d1362c2006-12-06 20:40:38 -080014
Heiko Carstens0defa3c2006-02-11 17:56:03 -080015#ifdef __KERNEL__
16
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#define PARMAREA 0x10400
Heiko Carstens23d17422008-07-14 09:59:21 +020018#define MEMORY_CHUNKS 256
Linus Torvalds1da177e2005-04-16 15:20:36 -070019
20#ifndef __ASSEMBLY__
21
Heiko Carstenscbb870c2010-02-26 22:37:43 +010022#include <asm/lowcore.h>
23#include <asm/types.h>
24
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#ifndef __s390x__
26#define IPL_DEVICE (*(unsigned long *) (0x10404))
27#define INITRD_START (*(unsigned long *) (0x1040C))
28#define INITRD_SIZE (*(unsigned long *) (0x10414))
29#else /* __s390x__ */
30#define IPL_DEVICE (*(unsigned long *) (0x10400))
31#define INITRD_START (*(unsigned long *) (0x10408))
32#define INITRD_SIZE (*(unsigned long *) (0x10410))
33#endif /* __s390x__ */
34#define COMMAND_LINE ((char *) (0x10480))
35
Heiko Carstens36a2bd42006-12-04 15:40:38 +010036#define CHUNK_READ_WRITE 0
37#define CHUNK_READ_ONLY 1
38
39struct mem_chunk {
40 unsigned long addr;
41 unsigned long size;
Heiko Carstens23d17422008-07-14 09:59:21 +020042 int type;
Heiko Carstens36a2bd42006-12-04 15:40:38 +010043};
44
45extern struct mem_chunk memory_chunk[];
Michael Holzheu411ed322007-04-27 16:01:49 +020046extern unsigned long real_memory_size;
Heiko Carstens23d75d92009-02-19 15:19:01 +010047extern int memory_end_set;
48extern unsigned long memory_end;
Heiko Carstens36a2bd42006-12-04 15:40:38 +010049
Heiko Carstens23d17422008-07-14 09:59:21 +020050void detect_memory_layout(struct mem_chunk chunk[]);
51
Martin Schwidefskyb11b5332009-12-07 12:51:43 +010052#define PRIMARY_SPACE_MODE 0
53#define ACCESS_REGISTER_MODE 1
54#define SECONDARY_SPACE_MODE 2
55#define HOME_SPACE_MODE 3
Gerald Schaeferc1821c22007-02-05 21:18:17 +010056
Martin Schwidefskyb11b5332009-12-07 12:51:43 +010057extern unsigned int user_mode;
Gerald Schaeferc1821c22007-02-05 21:18:17 +010058
Linus Torvalds1da177e2005-04-16 15:20:36 -070059/*
60 * Machine features detected in head.S
61 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
Heiko Carstens2e5061e2008-04-30 13:38:45 +020063#define MACHINE_FLAG_VM (1UL << 0)
64#define MACHINE_FLAG_IEEE (1UL << 1)
Heiko Carstens2e5061e2008-04-30 13:38:45 +020065#define MACHINE_FLAG_CSP (1UL << 3)
66#define MACHINE_FLAG_MVPG (1UL << 4)
67#define MACHINE_FLAG_DIAG44 (1UL << 5)
68#define MACHINE_FLAG_IDTE (1UL << 6)
69#define MACHINE_FLAG_DIAG9C (1UL << 7)
70#define MACHINE_FLAG_MVCOS (1UL << 8)
71#define MACHINE_FLAG_KVM (1UL << 9)
Gerald Schaefer53492b12008-04-30 13:38:46 +020072#define MACHINE_FLAG_HPAGE (1UL << 10)
73#define MACHINE_FLAG_PFMF (1UL << 11)
Martin Schwidefsky27d71602010-02-26 22:37:38 +010074#define MACHINE_FLAG_LPAR (1UL << 12)
Carsten Ottecd3b70f2010-05-17 10:00:04 +020075#define MACHINE_FLAG_SPP (1UL << 13)
Heiko Carstens2e5061e2008-04-30 13:38:45 +020076
Christian Ehrhardt25097bf2009-04-14 15:36:16 +020077#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
78#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
Martin Schwidefsky27d71602010-02-26 22:37:38 +010079#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
80
Christian Ehrhardt25097bf2009-04-14 15:36:16 +020081#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
Linus Torvalds1da177e2005-04-16 15:20:36 -070082
83#ifndef __s390x__
Christian Ehrhardt25097bf2009-04-14 15:36:16 +020084#define MACHINE_HAS_IEEE (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE)
85#define MACHINE_HAS_CSP (S390_lowcore.machine_flags & MACHINE_FLAG_CSP)
Heiko Carstens2e5061e2008-04-30 13:38:45 +020086#define MACHINE_HAS_IDTE (0)
Heiko Carstensabdba612006-07-12 16:39:58 +020087#define MACHINE_HAS_DIAG44 (1)
Christian Ehrhardt25097bf2009-04-14 15:36:16 +020088#define MACHINE_HAS_MVPG (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG)
Gerald Schaefer6c2a9e62006-09-20 15:59:44 +020089#define MACHINE_HAS_MVCOS (0)
Gerald Schaefer53492b12008-04-30 13:38:46 +020090#define MACHINE_HAS_HPAGE (0)
91#define MACHINE_HAS_PFMF (0)
Carsten Ottecd3b70f2010-05-17 10:00:04 +020092#define MACHINE_HAS_SPP (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -070093#else /* __s390x__ */
94#define MACHINE_HAS_IEEE (1)
95#define MACHINE_HAS_CSP (1)
Christian Ehrhardt25097bf2009-04-14 15:36:16 +020096#define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
97#define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
Heiko Carstens2e5061e2008-04-30 13:38:45 +020098#define MACHINE_HAS_MVPG (1)
Christian Ehrhardt25097bf2009-04-14 15:36:16 +020099#define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
100#define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE)
101#define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
Carsten Ottecd3b70f2010-05-17 10:00:04 +0200102#define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103#endif /* __s390x__ */
104
Michael Holzheu411ed322007-04-27 16:01:49 +0200105#define ZFCPDUMP_HSA_SIZE (32UL<<20)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106
107/*
108 * Console mode. Override with conmode=
109 */
110extern unsigned int console_mode;
111extern unsigned int console_devno;
112extern unsigned int console_irq;
113
Heiko Carstens2b67fc42007-02-05 21:16:47 +0100114extern char vmhalt_cmd[];
115extern char vmpoff_cmd[];
116
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117#define CONSOLE_IS_UNDEFINED (console_mode == 0)
118#define CONSOLE_IS_SCLP (console_mode == 1)
119#define CONSOLE_IS_3215 (console_mode == 2)
120#define CONSOLE_IS_3270 (console_mode == 3)
121#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
122#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
123#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
124
Hongjie Yangfe355b72007-02-05 21:18:24 +0100125#define NSS_NAME_SIZE 8
Hongjie Yangfe355b72007-02-05 21:18:24 +0100126extern char kernel_nss_name[];
127
Heiko Carstens0defa3c2006-02-11 17:56:03 -0800128#else /* __ASSEMBLY__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129
130#ifndef __s390x__
131#define IPL_DEVICE 0x10404
132#define INITRD_START 0x1040C
133#define INITRD_SIZE 0x10414
134#else /* __s390x__ */
135#define IPL_DEVICE 0x10400
136#define INITRD_START 0x10408
137#define INITRD_SIZE 0x10410
138#endif /* __s390x__ */
139#define COMMAND_LINE 0x10480
140
Heiko Carstens0defa3c2006-02-11 17:56:03 -0800141#endif /* __ASSEMBLY__ */
142#endif /* __KERNEL__ */
143#endif /* _ASM_S390_SETUP_H */