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 896
15 #include <asm/types.h>
17 #define PARMAREA 0x10400
18 #define MEMORY_CHUNKS 16 /* max 0x7fff */
23 #define IPL_DEVICE (*(unsigned long *) (0x10404))
24 #define INITRD_START (*(unsigned long *) (0x1040C))
25 #define INITRD_SIZE (*(unsigned long *) (0x10414))
27 #define IPL_DEVICE (*(unsigned long *) (0x10400))
28 #define INITRD_START (*(unsigned long *) (0x10408))
29 #define INITRD_SIZE (*(unsigned long *) (0x10410))
30 #endif /* __s390x__ */
31 #define COMMAND_LINE ((char *) (0x10480))
33 #define CHUNK_READ_WRITE 0
34 #define CHUNK_READ_ONLY 1
42 extern struct mem_chunk memory_chunk[];
43 extern unsigned long real_memory_size;
45 #ifdef CONFIG_S390_SWITCH_AMODE
46 extern unsigned int switch_amode;
48 #define switch_amode (0)
51 #ifdef CONFIG_S390_EXEC_PROTECT
52 extern unsigned int s390_noexec;
54 #define s390_noexec (0)
58 * Machine features detected in head.S
60 extern unsigned long machine_flags;
62 #define MACHINE_FLAG_VM (1UL << 0)
63 #define MACHINE_FLAG_IEEE (1UL << 1)
64 #define MACHINE_FLAG_P390 (1UL << 2)
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)
73 #define MACHINE_IS_VM (machine_flags & MACHINE_FLAG_VM)
74 #define MACHINE_IS_KVM (machine_flags & MACHINE_FLAG_KVM)
75 #define MACHINE_IS_P390 (machine_flags & MACHINE_FLAG_P390)
76 #define MACHINE_HAS_DIAG9C (machine_flags & MACHINE_FLAG_DIAG9C)
79 #define MACHINE_HAS_IEEE (machine_flags & MACHINE_FLAG_IEEE)
80 #define MACHINE_HAS_CSP (machine_flags & MACHINE_FLAG_CSP)
81 #define MACHINE_HAS_IDTE (0)
82 #define MACHINE_HAS_DIAG44 (1)
83 #define MACHINE_HAS_MVPG (machine_flags & MACHINE_FLAG_MVPG)
84 #define MACHINE_HAS_MVCOS (0)
86 #define MACHINE_HAS_IEEE (1)
87 #define MACHINE_HAS_CSP (1)
88 #define MACHINE_HAS_IDTE (machine_flags & MACHINE_FLAG_IDTE)
89 #define MACHINE_HAS_DIAG44 (machine_flags & MACHINE_FLAG_DIAG44)
90 #define MACHINE_HAS_MVPG (1)
91 #define MACHINE_HAS_MVCOS (machine_flags & MACHINE_FLAG_MVCOS)
92 #endif /* __s390x__ */
94 #define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
95 #define ZFCPDUMP_HSA_SIZE (32UL<<20)
98 * Console mode. Override with conmode=
100 extern unsigned int console_mode;
101 extern unsigned int console_devno;
102 extern unsigned int console_irq;
104 extern char vmhalt_cmd[];
105 extern char vmpoff_cmd[];
107 #define CONSOLE_IS_UNDEFINED (console_mode == 0)
108 #define CONSOLE_IS_SCLP (console_mode == 1)
109 #define CONSOLE_IS_3215 (console_mode == 2)
110 #define CONSOLE_IS_3270 (console_mode == 3)
111 #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
112 #define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
113 #define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
115 #define NSS_NAME_SIZE 8
116 extern char kernel_nss_name[];
118 #else /* __ASSEMBLY__ */
121 #define IPL_DEVICE 0x10404
122 #define INITRD_START 0x1040C
123 #define INITRD_SIZE 0x10414
124 #else /* __s390x__ */
125 #define IPL_DEVICE 0x10400
126 #define INITRD_START 0x10408
127 #define INITRD_SIZE 0x10410
128 #endif /* __s390x__ */
129 #define COMMAND_LINE 0x10480
131 #endif /* __ASSEMBLY__ */
132 #endif /* __KERNEL__ */
133 #endif /* _ASM_S390_SETUP_H */