2 * include/asm-s390/setup.h
5 * Copyright IBM Corp. 1999,2006
8 #ifndef _ASM_S390_SETUP_H
9 #define _ASM_S390_SETUP_H
13 #include <asm/types.h>
15 #define PARMAREA 0x10400
16 #define COMMAND_LINE_SIZE 896
17 #define MEMORY_CHUNKS 16 /* max 0x7fff */
18 #define IPL_PARMBLOCK_ORIGIN 0x2000
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[];
45 * Machine features detected in head.S
47 extern unsigned long machine_flags;
49 #define MACHINE_IS_VM (machine_flags & 1)
50 #define MACHINE_IS_P390 (machine_flags & 4)
51 #define MACHINE_HAS_MVPG (machine_flags & 16)
52 #define MACHINE_HAS_IDTE (machine_flags & 128)
53 #define MACHINE_HAS_DIAG9C (machine_flags & 256)
56 #define MACHINE_HAS_IEEE (machine_flags & 2)
57 #define MACHINE_HAS_CSP (machine_flags & 8)
58 #define MACHINE_HAS_DIAG44 (1)
59 #define MACHINE_HAS_MVCOS (0)
61 #define MACHINE_HAS_IEEE (1)
62 #define MACHINE_HAS_CSP (1)
63 #define MACHINE_HAS_DIAG44 (machine_flags & 32)
64 #define MACHINE_HAS_MVCOS (machine_flags & 512)
65 #endif /* __s390x__ */
67 #define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
70 * Console mode. Override with conmode=
72 extern unsigned int console_mode;
73 extern unsigned int console_devno;
74 extern unsigned int console_irq;
76 #define CONSOLE_IS_UNDEFINED (console_mode == 0)
77 #define CONSOLE_IS_SCLP (console_mode == 1)
78 #define CONSOLE_IS_3215 (console_mode == 2)
79 #define CONSOLE_IS_3270 (console_mode == 3)
80 #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
81 #define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
82 #define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
92 } __attribute__((packed));
94 struct ipl_block_fcp {
109 } __attribute__((packed));
111 struct ipl_block_ccw {
119 } __attribute__((packed));
121 struct ipl_parameter_block {
122 struct ipl_list_hdr hdr;
124 struct ipl_block_fcp fcp;
125 struct ipl_block_ccw ccw;
127 } __attribute__((packed));
129 #define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \
130 sizeof(struct ipl_block_fcp))
132 #define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \
133 sizeof(struct ipl_block_ccw))
135 #define IPL_MAX_SUPPORTED_VERSION (0)
138 * IPL validity flags and parameters as detected in head.S
140 extern u32 ipl_flags;
141 extern u16 ipl_devno;
147 IPL_PARMBLOCK_VALID = 2,
150 #define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \
151 IPL_PARMBLOCK_ORIGIN)
152 #define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len)
154 #else /* __ASSEMBLY__ */
157 #define IPL_DEVICE 0x10404
158 #define INITRD_START 0x1040C
159 #define INITRD_SIZE 0x10414
160 #else /* __s390x__ */
161 #define IPL_DEVICE 0x10400
162 #define INITRD_START 0x10408
163 #define INITRD_SIZE 0x10410
164 #endif /* __s390x__ */
165 #define COMMAND_LINE 0x10480
167 #endif /* __ASSEMBLY__ */
168 #endif /* __KERNEL__ */
169 #endif /* _ASM_S390_SETUP_H */