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