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1/*
2 * include/asm-s390/setup.h
3 *
4 * S390 version
5 * Copyright IBM Corp. 1999,2010
6 */
7
8#ifndef _ASM_S390_SETUP_H
9#define _ASM_S390_SETUP_H
10
11#define COMMAND_LINE_SIZE 4096
12
13#define ARCH_COMMAND_LINE_SIZE 896
14
15#ifdef __KERNEL__
16
17#define PARMAREA 0x10400
18#define MEMORY_CHUNKS 256
19
20#ifndef __ASSEMBLY__
21
22#include <asm/lowcore.h>
23#include <asm/types.h>
24
25#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
36#define CHUNK_READ_WRITE 0
37#define CHUNK_READ_ONLY 1
38
39struct mem_chunk {
40 unsigned long addr;
41 unsigned long size;
42 int type;
43};
44
45extern struct mem_chunk memory_chunk[];
46extern unsigned long real_memory_size;
47extern int memory_end_set;
48extern unsigned long memory_end;
49
50void detect_memory_layout(struct mem_chunk chunk[]);
51
52#define PRIMARY_SPACE_MODE 0
53#define ACCESS_REGISTER_MODE 1
54#define SECONDARY_SPACE_MODE 2
55#define HOME_SPACE_MODE 3
56
57extern unsigned int user_mode;
58
59/*
60 * Machine features detected in head.S
61 */
62
63#define MACHINE_FLAG_VM (1UL << 0)
64#define MACHINE_FLAG_IEEE (1UL << 1)
65#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)
72#define MACHINE_FLAG_HPAGE (1UL << 10)
73#define MACHINE_FLAG_PFMF (1UL << 11)
74#define MACHINE_FLAG_LPAR (1UL << 12)
75#define MACHINE_FLAG_SPP (1UL << 13)
76#define MACHINE_FLAG_TOPOLOGY (1UL << 14)
77
78#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
79#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
80#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
81
82#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
83
84#ifndef __s390x__
85#define MACHINE_HAS_IEEE (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE)
86#define MACHINE_HAS_CSP (S390_lowcore.machine_flags & MACHINE_FLAG_CSP)
87#define MACHINE_HAS_IDTE (0)
88#define MACHINE_HAS_DIAG44 (1)
89#define MACHINE_HAS_MVPG (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG)
90#define MACHINE_HAS_MVCOS (0)
91#define MACHINE_HAS_HPAGE (0)
92#define MACHINE_HAS_PFMF (0)
93#define MACHINE_HAS_SPP (0)
94#define MACHINE_HAS_TOPOLOGY (0)
95#else /* __s390x__ */
96#define MACHINE_HAS_IEEE (1)
97#define MACHINE_HAS_CSP (1)
98#define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
99#define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
100#define MACHINE_HAS_MVPG (1)
101#define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
102#define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE)
103#define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
104#define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
105#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
106#endif /* __s390x__ */
107
108#define ZFCPDUMP_HSA_SIZE (32UL<<20)
109
110/*
111 * Console mode. Override with conmode=
112 */
113extern unsigned int console_mode;
114extern unsigned int console_devno;
115extern unsigned int console_irq;
116
117extern char vmhalt_cmd[];
118extern char vmpoff_cmd[];
119
120#define CONSOLE_IS_UNDEFINED (console_mode == 0)
121#define CONSOLE_IS_SCLP (console_mode == 1)
122#define CONSOLE_IS_3215 (console_mode == 2)
123#define CONSOLE_IS_3270 (console_mode == 3)
124#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
125#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
126#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
127
128#define NSS_NAME_SIZE 8
129extern char kernel_nss_name[];
130
131#else /* __ASSEMBLY__ */
132
133#ifndef __s390x__
134#define IPL_DEVICE 0x10404
135#define INITRD_START 0x1040C
136#define INITRD_SIZE 0x10414
137#else /* __s390x__ */
138#define IPL_DEVICE 0x10400
139#define INITRD_START 0x10408
140#define INITRD_SIZE 0x10410
141#endif /* __s390x__ */
142#define COMMAND_LINE 0x10480
143
144#endif /* __ASSEMBLY__ */
145#endif /* __KERNEL__ */
146#endif /* _ASM_S390_SETUP_H */