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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))
Michael Holzheu60a0c682011-10-30 15:16:40 +010029#define OLDMEM_BASE (*(unsigned long *) (0x1041C))
30#define OLDMEM_SIZE (*(unsigned long *) (0x10424))
Linus Torvalds1da177e2005-04-16 15:20:36 -070031#else /* __s390x__ */
32#define IPL_DEVICE (*(unsigned long *) (0x10400))
33#define INITRD_START (*(unsigned long *) (0x10408))
34#define INITRD_SIZE (*(unsigned long *) (0x10410))
Michael Holzheu60a0c682011-10-30 15:16:40 +010035#define OLDMEM_BASE (*(unsigned long *) (0x10418))
36#define OLDMEM_SIZE (*(unsigned long *) (0x10420))
Linus Torvalds1da177e2005-04-16 15:20:36 -070037#endif /* __s390x__ */
38#define COMMAND_LINE ((char *) (0x10480))
39
Heiko Carstens36a2bd42006-12-04 15:40:38 +010040#define CHUNK_READ_WRITE 0
41#define CHUNK_READ_ONLY 1
Michael Holzheu60a0c682011-10-30 15:16:40 +010042#define CHUNK_OLDMEM 4
43#define CHUNK_CRASHK 5
Heiko Carstens36a2bd42006-12-04 15:40:38 +010044
45struct mem_chunk {
46 unsigned long addr;
47 unsigned long size;
Heiko Carstens23d17422008-07-14 09:59:21 +020048 int type;
Heiko Carstens36a2bd42006-12-04 15:40:38 +010049};
50
51extern struct mem_chunk memory_chunk[];
Michael Holzheu411ed322007-04-27 16:01:49 +020052extern unsigned long real_memory_size;
Heiko Carstens23d75d92009-02-19 15:19:01 +010053extern int memory_end_set;
54extern unsigned long memory_end;
Heiko Carstens36a2bd42006-12-04 15:40:38 +010055
Heiko Carstens23d17422008-07-14 09:59:21 +020056void detect_memory_layout(struct mem_chunk chunk[]);
Michael Holzheu60a0c682011-10-30 15:16:40 +010057void create_mem_hole(struct mem_chunk memory_chunk[], unsigned long addr,
58 unsigned long size, int type);
Heiko Carstens23d17422008-07-14 09:59:21 +020059
Martin Schwidefskyb11b5332009-12-07 12:51:43 +010060#define PRIMARY_SPACE_MODE 0
61#define ACCESS_REGISTER_MODE 1
62#define SECONDARY_SPACE_MODE 2
63#define HOME_SPACE_MODE 3
Gerald Schaeferc1821c22007-02-05 21:18:17 +010064
Martin Schwidefskyb11b5332009-12-07 12:51:43 +010065extern unsigned int user_mode;
Gerald Schaeferc1821c22007-02-05 21:18:17 +010066
Linus Torvalds1da177e2005-04-16 15:20:36 -070067/*
68 * Machine features detected in head.S
69 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070070
Heiko Carstens2e5061e2008-04-30 13:38:45 +020071#define MACHINE_FLAG_VM (1UL << 0)
72#define MACHINE_FLAG_IEEE (1UL << 1)
Heiko Carstens2e5061e2008-04-30 13:38:45 +020073#define MACHINE_FLAG_CSP (1UL << 3)
74#define MACHINE_FLAG_MVPG (1UL << 4)
75#define MACHINE_FLAG_DIAG44 (1UL << 5)
76#define MACHINE_FLAG_IDTE (1UL << 6)
77#define MACHINE_FLAG_DIAG9C (1UL << 7)
78#define MACHINE_FLAG_MVCOS (1UL << 8)
79#define MACHINE_FLAG_KVM (1UL << 9)
Gerald Schaefer53492b12008-04-30 13:38:46 +020080#define MACHINE_FLAG_HPAGE (1UL << 10)
81#define MACHINE_FLAG_PFMF (1UL << 11)
Martin Schwidefsky27d71602010-02-26 22:37:38 +010082#define MACHINE_FLAG_LPAR (1UL << 12)
Carsten Ottecd3b70f2010-05-17 10:00:04 +020083#define MACHINE_FLAG_SPP (1UL << 13)
Heiko Carstens9186d7a2010-10-25 16:10:52 +020084#define MACHINE_FLAG_TOPOLOGY (1UL << 14)
Heiko Carstens2e5061e2008-04-30 13:38:45 +020085
Christian Ehrhardt25097bf2009-04-14 15:36:16 +020086#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
87#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
Martin Schwidefsky27d71602010-02-26 22:37:38 +010088#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
89
Christian Ehrhardt25097bf2009-04-14 15:36:16 +020090#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
Linus Torvalds1da177e2005-04-16 15:20:36 -070091
92#ifndef __s390x__
Christian Ehrhardt25097bf2009-04-14 15:36:16 +020093#define MACHINE_HAS_IEEE (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE)
94#define MACHINE_HAS_CSP (S390_lowcore.machine_flags & MACHINE_FLAG_CSP)
Heiko Carstens2e5061e2008-04-30 13:38:45 +020095#define MACHINE_HAS_IDTE (0)
Heiko Carstensabdba612006-07-12 16:39:58 +020096#define MACHINE_HAS_DIAG44 (1)
Christian Ehrhardt25097bf2009-04-14 15:36:16 +020097#define MACHINE_HAS_MVPG (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG)
Gerald Schaefer6c2a9e62006-09-20 15:59:44 +020098#define MACHINE_HAS_MVCOS (0)
Gerald Schaefer53492b12008-04-30 13:38:46 +020099#define MACHINE_HAS_HPAGE (0)
100#define MACHINE_HAS_PFMF (0)
Carsten Ottecd3b70f2010-05-17 10:00:04 +0200101#define MACHINE_HAS_SPP (0)
Heiko Carstens9186d7a2010-10-25 16:10:52 +0200102#define MACHINE_HAS_TOPOLOGY (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103#else /* __s390x__ */
104#define MACHINE_HAS_IEEE (1)
105#define MACHINE_HAS_CSP (1)
Christian Ehrhardt25097bf2009-04-14 15:36:16 +0200106#define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
107#define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
Heiko Carstens2e5061e2008-04-30 13:38:45 +0200108#define MACHINE_HAS_MVPG (1)
Christian Ehrhardt25097bf2009-04-14 15:36:16 +0200109#define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
110#define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE)
111#define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
Carsten Ottecd3b70f2010-05-17 10:00:04 +0200112#define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
Heiko Carstens9186d7a2010-10-25 16:10:52 +0200113#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114#endif /* __s390x__ */
115
Michael Holzheu411ed322007-04-27 16:01:49 +0200116#define ZFCPDUMP_HSA_SIZE (32UL<<20)
Michael Holzheu60a0c682011-10-30 15:16:40 +0100117#define ZFCPDUMP_HSA_SIZE_MAX (64UL<<20)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118
119/*
120 * Console mode. Override with conmode=
121 */
122extern unsigned int console_mode;
123extern unsigned int console_devno;
124extern unsigned int console_irq;
125
Heiko Carstens2b67fc42007-02-05 21:16:47 +0100126extern char vmhalt_cmd[];
127extern char vmpoff_cmd[];
128
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129#define CONSOLE_IS_UNDEFINED (console_mode == 0)
130#define CONSOLE_IS_SCLP (console_mode == 1)
131#define CONSOLE_IS_3215 (console_mode == 2)
132#define CONSOLE_IS_3270 (console_mode == 3)
133#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
134#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
135#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
136
Hongjie Yangfe355b72007-02-05 21:18:24 +0100137#define NSS_NAME_SIZE 8
Hongjie Yangfe355b72007-02-05 21:18:24 +0100138extern char kernel_nss_name[];
139
Heiko Carstens0defa3c2006-02-11 17:56:03 -0800140#else /* __ASSEMBLY__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141
142#ifndef __s390x__
143#define IPL_DEVICE 0x10404
144#define INITRD_START 0x1040C
145#define INITRD_SIZE 0x10414
Michael Holzheu60a0c682011-10-30 15:16:40 +0100146#define OLDMEM_BASE 0x1041C
147#define OLDMEM_SIZE 0x10424
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148#else /* __s390x__ */
149#define IPL_DEVICE 0x10400
150#define INITRD_START 0x10408
151#define INITRD_SIZE 0x10410
Michael Holzheu60a0c682011-10-30 15:16:40 +0100152#define OLDMEM_BASE 0x10418
153#define OLDMEM_SIZE 0x10420
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154#endif /* __s390x__ */
155#define COMMAND_LINE 0x10480
156
Heiko Carstens0defa3c2006-02-11 17:56:03 -0800157#endif /* __ASSEMBLY__ */
158#endif /* __KERNEL__ */
159#endif /* _ASM_S390_SETUP_H */