1 /* SPDX-License-Identifier: GPL-2.0 */
4 * Copyright IBM Corp. 1999, 2010
6 #ifndef _ASM_S390_SETUP_H
7 #define _ASM_S390_SETUP_H
9 #include <linux/const.h>
10 #include <uapi/asm/setup.h>
13 #define PARMAREA 0x10400
16 * Machine features detected in early.c
19 #define MACHINE_FLAG_VM _BITUL(0)
20 #define MACHINE_FLAG_KVM _BITUL(1)
21 #define MACHINE_FLAG_LPAR _BITUL(2)
22 #define MACHINE_FLAG_DIAG9C _BITUL(3)
23 #define MACHINE_FLAG_ESOP _BITUL(4)
24 #define MACHINE_FLAG_IDTE _BITUL(5)
25 #define MACHINE_FLAG_DIAG44 _BITUL(6)
26 #define MACHINE_FLAG_EDAT1 _BITUL(7)
27 #define MACHINE_FLAG_EDAT2 _BITUL(8)
28 #define MACHINE_FLAG_TOPOLOGY _BITUL(10)
29 #define MACHINE_FLAG_TE _BITUL(11)
30 #define MACHINE_FLAG_TLB_LC _BITUL(12)
31 #define MACHINE_FLAG_VX _BITUL(13)
32 #define MACHINE_FLAG_TLB_GUEST _BITUL(14)
33 #define MACHINE_FLAG_NX _BITUL(15)
34 #define MACHINE_FLAG_GS _BITUL(16)
35 #define MACHINE_FLAG_SCC _BITUL(17)
37 #define LPP_MAGIC _BITUL(31)
38 #define LPP_PID_MASK _AC(0xffffffff, UL)
42 #include <asm/lowcore.h>
43 #include <asm/types.h>
45 #define IPL_DEVICE (*(unsigned long *) (0x10400))
46 #define INITRD_START (*(unsigned long *) (0x10408))
47 #define INITRD_SIZE (*(unsigned long *) (0x10410))
48 #define OLDMEM_BASE (*(unsigned long *) (0x10418))
49 #define OLDMEM_SIZE (*(unsigned long *) (0x10420))
50 #define COMMAND_LINE ((char *) (0x10480))
52 extern int memory_end_set;
53 extern unsigned long memory_end;
54 extern unsigned long max_physmem_end;
56 extern void detect_memory_memblock(void);
58 #define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
59 #define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
60 #define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
62 #define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
63 #define MACHINE_HAS_ESOP (S390_lowcore.machine_flags & MACHINE_FLAG_ESOP)
64 #define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
65 #define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
66 #define MACHINE_HAS_EDAT1 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1)
67 #define MACHINE_HAS_EDAT2 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2)
68 #define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
69 #define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE)
70 #define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC)
71 #define MACHINE_HAS_VX (S390_lowcore.machine_flags & MACHINE_FLAG_VX)
72 #define MACHINE_HAS_TLB_GUEST (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_GUEST)
73 #define MACHINE_HAS_NX (S390_lowcore.machine_flags & MACHINE_FLAG_NX)
74 #define MACHINE_HAS_GS (S390_lowcore.machine_flags & MACHINE_FLAG_GS)
75 #define MACHINE_HAS_SCC (S390_lowcore.machine_flags & MACHINE_FLAG_SCC)
78 * Console mode. Override with conmode=
80 extern unsigned int console_mode;
81 extern unsigned int console_devno;
82 extern unsigned int console_irq;
84 extern char vmhalt_cmd[];
85 extern char vmpoff_cmd[];
87 #define CONSOLE_IS_UNDEFINED (console_mode == 0)
88 #define CONSOLE_IS_SCLP (console_mode == 1)
89 #define CONSOLE_IS_3215 (console_mode == 2)
90 #define CONSOLE_IS_3270 (console_mode == 3)
91 #define CONSOLE_IS_VT220 (console_mode == 4)
92 #define CONSOLE_IS_HVC (console_mode == 5)
93 #define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
94 #define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
95 #define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
96 #define SET_CONSOLE_VT220 do { console_mode = 4; } while (0)
97 #define SET_CONSOLE_HVC do { console_mode = 5; } while (0)
100 extern int pfault_init(void);
101 extern void pfault_fini(void);
102 #else /* CONFIG_PFAULT */
103 #define pfault_init() ({-1;})
104 #define pfault_fini() do { } while (0)
105 #endif /* CONFIG_PFAULT */
108 void vmcp_cma_reserve(void);
110 static inline void vmcp_cma_reserve(void) { }
113 void report_user_fault(struct pt_regs *regs, long signr, int is_mm_fault);
115 void cmma_init(void);
116 void cmma_init_nodat(void);
118 extern void (*_machine_restart)(char *command);
119 extern void (*_machine_halt)(void);
120 extern void (*_machine_power_off)(void);
122 #else /* __ASSEMBLY__ */
124 #define IPL_DEVICE 0x10400
125 #define INITRD_START 0x10408
126 #define INITRD_SIZE 0x10410
127 #define OLDMEM_BASE 0x10418
128 #define OLDMEM_SIZE 0x10420
129 #define COMMAND_LINE 0x10480
131 #endif /* __ASSEMBLY__ */
132 #endif /* _ASM_S390_SETUP_H */