Linux kernel mirror (for testing)
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linux
1/*
2 * S390 version
3 * Copyright IBM Corp. 1999, 2010
4 */
5
6#ifndef _ASM_S390_SETUP_H
7#define _ASM_S390_SETUP_H
8
9#define COMMAND_LINE_SIZE 4096
10
11#define ARCH_COMMAND_LINE_SIZE 896
12
13#ifdef __KERNEL__
14
15#define PARMAREA 0x10400
16#define MEMORY_CHUNKS 256
17
18#ifndef __ASSEMBLY__
19
20#include <asm/lowcore.h>
21#include <asm/types.h>
22
23#ifndef CONFIG_64BIT
24#define IPL_DEVICE (*(unsigned long *) (0x10404))
25#define INITRD_START (*(unsigned long *) (0x1040C))
26#define INITRD_SIZE (*(unsigned long *) (0x10414))
27#define OLDMEM_BASE (*(unsigned long *) (0x1041C))
28#define OLDMEM_SIZE (*(unsigned long *) (0x10424))
29#else /* CONFIG_64BIT */
30#define IPL_DEVICE (*(unsigned long *) (0x10400))
31#define INITRD_START (*(unsigned long *) (0x10408))
32#define INITRD_SIZE (*(unsigned long *) (0x10410))
33#define OLDMEM_BASE (*(unsigned long *) (0x10418))
34#define OLDMEM_SIZE (*(unsigned long *) (0x10420))
35#endif /* CONFIG_64BIT */
36#define COMMAND_LINE ((char *) (0x10480))
37
38#define CHUNK_READ_WRITE 0
39#define CHUNK_READ_ONLY 1
40#define CHUNK_OLDMEM 4
41#define CHUNK_CRASHK 5
42
43struct mem_chunk {
44 unsigned long addr;
45 unsigned long size;
46 int type;
47};
48
49extern struct mem_chunk memory_chunk[];
50extern unsigned long real_memory_size;
51extern int memory_end_set;
52extern unsigned long memory_end;
53
54void detect_memory_layout(struct mem_chunk chunk[]);
55void create_mem_hole(struct mem_chunk memory_chunk[], unsigned long addr,
56 unsigned long size, int type);
57
58#define PRIMARY_SPACE_MODE 0
59#define ACCESS_REGISTER_MODE 1
60#define SECONDARY_SPACE_MODE 2
61#define HOME_SPACE_MODE 3
62
63extern unsigned int addressing_mode;
64
65/*
66 * Machine features detected in head.S
67 */
68
69#define MACHINE_FLAG_VM (1UL << 0)
70#define MACHINE_FLAG_IEEE (1UL << 1)
71#define MACHINE_FLAG_CSP (1UL << 3)
72#define MACHINE_FLAG_MVPG (1UL << 4)
73#define MACHINE_FLAG_DIAG44 (1UL << 5)
74#define MACHINE_FLAG_IDTE (1UL << 6)
75#define MACHINE_FLAG_DIAG9C (1UL << 7)
76#define MACHINE_FLAG_MVCOS (1UL << 8)
77#define MACHINE_FLAG_KVM (1UL << 9)
78#define MACHINE_FLAG_HPAGE (1UL << 10)
79#define MACHINE_FLAG_PFMF (1UL << 11)
80#define MACHINE_FLAG_LPAR (1UL << 12)
81#define MACHINE_FLAG_SPP (1UL << 13)
82#define MACHINE_FLAG_TOPOLOGY (1UL << 14)
83
84#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
85#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
86#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
87
88#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
89
90#ifndef CONFIG_64BIT
91#define MACHINE_HAS_IEEE (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE)
92#define MACHINE_HAS_CSP (S390_lowcore.machine_flags & MACHINE_FLAG_CSP)
93#define MACHINE_HAS_IDTE (0)
94#define MACHINE_HAS_DIAG44 (1)
95#define MACHINE_HAS_MVPG (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG)
96#define MACHINE_HAS_MVCOS (0)
97#define MACHINE_HAS_HPAGE (0)
98#define MACHINE_HAS_PFMF (0)
99#define MACHINE_HAS_SPP (0)
100#define MACHINE_HAS_TOPOLOGY (0)
101#else /* CONFIG_64BIT */
102#define MACHINE_HAS_IEEE (1)
103#define MACHINE_HAS_CSP (1)
104#define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
105#define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
106#define MACHINE_HAS_MVPG (1)
107#define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
108#define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE)
109#define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
110#define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
111#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
112#endif /* CONFIG_64BIT */
113
114#define ZFCPDUMP_HSA_SIZE (32UL<<20)
115#define ZFCPDUMP_HSA_SIZE_MAX (64UL<<20)
116
117/*
118 * Console mode. Override with conmode=
119 */
120extern unsigned int console_mode;
121extern unsigned int console_devno;
122extern unsigned int console_irq;
123
124extern char vmhalt_cmd[];
125extern char vmpoff_cmd[];
126
127#define CONSOLE_IS_UNDEFINED (console_mode == 0)
128#define CONSOLE_IS_SCLP (console_mode == 1)
129#define CONSOLE_IS_3215 (console_mode == 2)
130#define CONSOLE_IS_3270 (console_mode == 3)
131#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
132#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
133#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
134
135#define NSS_NAME_SIZE 8
136extern char kernel_nss_name[];
137
138#ifdef CONFIG_PFAULT
139extern int pfault_init(void);
140extern void pfault_fini(void);
141#else /* CONFIG_PFAULT */
142#define pfault_init() ({-1;})
143#define pfault_fini() do { } while (0)
144#endif /* CONFIG_PFAULT */
145
146extern void cmma_init(void);
147
148extern void (*_machine_restart)(char *command);
149extern void (*_machine_halt)(void);
150extern void (*_machine_power_off)(void);
151
152#else /* __ASSEMBLY__ */
153
154#ifndef CONFIG_64BIT
155#define IPL_DEVICE 0x10404
156#define INITRD_START 0x1040C
157#define INITRD_SIZE 0x10414
158#define OLDMEM_BASE 0x1041C
159#define OLDMEM_SIZE 0x10424
160#else /* CONFIG_64BIT */
161#define IPL_DEVICE 0x10400
162#define INITRD_START 0x10408
163#define INITRD_SIZE 0x10410
164#define OLDMEM_BASE 0x10418
165#define OLDMEM_SIZE 0x10420
166#endif /* CONFIG_64BIT */
167#define COMMAND_LINE 0x10480
168
169#endif /* __ASSEMBLY__ */
170#endif /* __KERNEL__ */
171#endif /* _ASM_S390_SETUP_H */