2 * include/asm-s390/setup.h
5 * Copyright IBM Corp. 1999,2006
8 #ifndef _ASM_S390_SETUP_H
9 #define _ASM_S390_SETUP_H
11 #define COMMAND_LINE_SIZE 4096
13 #define ARCH_COMMAND_LINE_SIZE 896
17 #define PARMAREA 0x10400
18 #define MEMORY_CHUNKS 256
22 #include <asm/lowcore.h>
23 #include <asm/types.h>
26 #define IPL_DEVICE (*(unsigned long *) (0x10404))
27 #define INITRD_START (*(unsigned long *) (0x1040C))
28 #define INITRD_SIZE (*(unsigned long *) (0x10414))
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))
36 #define CHUNK_READ_WRITE 0
37 #define CHUNK_READ_ONLY 1
45 extern struct mem_chunk memory_chunk[];
46 extern unsigned long real_memory_size;
47 extern int memory_end_set;
48 extern unsigned long memory_end;
50 void detect_memory_layout(struct mem_chunk chunk[]);
52 #define PRIMARY_SPACE_MODE 0
53 #define ACCESS_REGISTER_MODE 1
54 #define SECONDARY_SPACE_MODE 2
55 #define HOME_SPACE_MODE 3
57 extern unsigned int user_mode;
60 * Machine features detected in head.S
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)
76 #define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
77 #define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
78 #define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
80 #define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
83 #define MACHINE_HAS_IEEE (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE)
84 #define MACHINE_HAS_CSP (S390_lowcore.machine_flags & MACHINE_FLAG_CSP)
85 #define MACHINE_HAS_IDTE (0)
86 #define MACHINE_HAS_DIAG44 (1)
87 #define MACHINE_HAS_MVPG (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG)
88 #define MACHINE_HAS_MVCOS (0)
89 #define MACHINE_HAS_HPAGE (0)
90 #define MACHINE_HAS_PFMF (0)
92 #define MACHINE_HAS_IEEE (1)
93 #define MACHINE_HAS_CSP (1)
94 #define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
95 #define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
96 #define MACHINE_HAS_MVPG (1)
97 #define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
98 #define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE)
99 #define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
100 #endif /* __s390x__ */
102 #define ZFCPDUMP_HSA_SIZE (32UL<<20)
105 * Console mode. Override with conmode=
107 extern unsigned int console_mode;
108 extern unsigned int console_devno;
109 extern unsigned int console_irq;
111 extern char vmhalt_cmd[];
112 extern char vmpoff_cmd[];
114 #define CONSOLE_IS_UNDEFINED (console_mode == 0)
115 #define CONSOLE_IS_SCLP (console_mode == 1)
116 #define CONSOLE_IS_3215 (console_mode == 2)
117 #define CONSOLE_IS_3270 (console_mode == 3)
118 #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
119 #define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
120 #define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
122 #define NSS_NAME_SIZE 8
123 extern char kernel_nss_name[];
125 #else /* __ASSEMBLY__ */
128 #define IPL_DEVICE 0x10404
129 #define INITRD_START 0x1040C
130 #define INITRD_SIZE 0x10414
131 #else /* __s390x__ */
132 #define IPL_DEVICE 0x10400
133 #define INITRD_START 0x10408
134 #define INITRD_SIZE 0x10410
135 #endif /* __s390x__ */
136 #define COMMAND_LINE 0x10480
138 #endif /* __ASSEMBLY__ */
139 #endif /* __KERNEL__ */
140 #endif /* _ASM_S390_SETUP_H */