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[];
44 #ifdef CONFIG_S390_SWITCH_AMODE
45 extern unsigned int switch_amode;
47 #define switch_amode (0)
50 #ifdef CONFIG_S390_EXEC_PROTECT
51 extern unsigned int s390_noexec;
53 #define s390_noexec (0)
57 * Machine features detected in head.S
59 extern unsigned long machine_flags;
61 #define MACHINE_IS_VM (machine_flags & 1)
62 #define MACHINE_IS_P390 (machine_flags & 4)
63 #define MACHINE_HAS_MVPG (machine_flags & 16)
64 #define MACHINE_HAS_IDTE (machine_flags & 128)
65 #define MACHINE_HAS_DIAG9C (machine_flags & 256)
68 #define MACHINE_HAS_IEEE (machine_flags & 2)
69 #define MACHINE_HAS_CSP (machine_flags & 8)
70 #define MACHINE_HAS_DIAG44 (1)
71 #define MACHINE_HAS_MVCOS (0)
73 #define MACHINE_HAS_IEEE (1)
74 #define MACHINE_HAS_CSP (1)
75 #define MACHINE_HAS_DIAG44 (machine_flags & 32)
76 #define MACHINE_HAS_MVCOS (machine_flags & 512)
77 #endif /* __s390x__ */
79 #define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
82 * Console mode. Override with conmode=
84 extern unsigned int console_mode;
85 extern unsigned int console_devno;
86 extern unsigned int console_irq;
88 extern char vmhalt_cmd[];
89 extern char vmpoff_cmd[];
91 #define CONSOLE_IS_UNDEFINED (console_mode == 0)
92 #define CONSOLE_IS_SCLP (console_mode == 1)
93 #define CONSOLE_IS_3215 (console_mode == 2)
94 #define CONSOLE_IS_3270 (console_mode == 3)
95 #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
96 #define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
97 #define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
99 #define NSS_NAME_SIZE 8
100 extern char kernel_nss_name[];
102 #else /* __ASSEMBLY__ */
105 #define IPL_DEVICE 0x10404
106 #define INITRD_START 0x1040C
107 #define INITRD_SIZE 0x10414
108 #else /* __s390x__ */
109 #define IPL_DEVICE 0x10400
110 #define INITRD_START 0x10408
111 #define INITRD_SIZE 0x10410
112 #endif /* __s390x__ */
113 #define COMMAND_LINE 0x10480
115 #endif /* __ASSEMBLY__ */
116 #endif /* __KERNEL__ */
117 #endif /* _ASM_S390_SETUP_H */