Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * S390 version
4 * Copyright IBM Corp. 1999, 2010
5 */
6#ifndef _ASM_S390_SETUP_H
7#define _ASM_S390_SETUP_H
8
9#include <linux/const.h>
10#include <uapi/asm/setup.h>
11
12
13#define PARMAREA 0x10400
14
15/*
16 * Machine features detected in early.c
17 */
18
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_LPP _BITUL(9)
29#define MACHINE_FLAG_TOPOLOGY _BITUL(10)
30#define MACHINE_FLAG_TE _BITUL(11)
31#define MACHINE_FLAG_TLB_LC _BITUL(12)
32#define MACHINE_FLAG_VX _BITUL(13)
33#define MACHINE_FLAG_TLB_GUEST _BITUL(14)
34#define MACHINE_FLAG_NX _BITUL(15)
35#define MACHINE_FLAG_GS _BITUL(16)
36#define MACHINE_FLAG_SCC _BITUL(17)
37
38#define LPP_MAGIC _BITUL(31)
39#define LPP_PID_MASK _AC(0xffffffff, UL)
40
41#ifndef __ASSEMBLY__
42
43#include <asm/lowcore.h>
44#include <asm/types.h>
45
46#define IPL_DEVICE (*(unsigned long *) (0x10400))
47#define INITRD_START (*(unsigned long *) (0x10408))
48#define INITRD_SIZE (*(unsigned long *) (0x10410))
49#define OLDMEM_BASE (*(unsigned long *) (0x10418))
50#define OLDMEM_SIZE (*(unsigned long *) (0x10420))
51#define COMMAND_LINE ((char *) (0x10480))
52
53extern int memory_end_set;
54extern unsigned long memory_end;
55extern unsigned long max_physmem_end;
56
57extern void detect_memory_memblock(void);
58
59#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
60#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
61#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
62
63#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
64#define MACHINE_HAS_ESOP (S390_lowcore.machine_flags & MACHINE_FLAG_ESOP)
65#define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
66#define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
67#define MACHINE_HAS_EDAT1 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1)
68#define MACHINE_HAS_EDAT2 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2)
69#define MACHINE_HAS_LPP (S390_lowcore.machine_flags & MACHINE_FLAG_LPP)
70#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
71#define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE)
72#define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC)
73#define MACHINE_HAS_VX (S390_lowcore.machine_flags & MACHINE_FLAG_VX)
74#define MACHINE_HAS_TLB_GUEST (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_GUEST)
75#define MACHINE_HAS_NX (S390_lowcore.machine_flags & MACHINE_FLAG_NX)
76#define MACHINE_HAS_GS (S390_lowcore.machine_flags & MACHINE_FLAG_GS)
77#define MACHINE_HAS_SCC (S390_lowcore.machine_flags & MACHINE_FLAG_SCC)
78
79/*
80 * Console mode. Override with conmode=
81 */
82extern unsigned int console_mode;
83extern unsigned int console_devno;
84extern unsigned int console_irq;
85
86extern char vmhalt_cmd[];
87extern char vmpoff_cmd[];
88
89#define CONSOLE_IS_UNDEFINED (console_mode == 0)
90#define CONSOLE_IS_SCLP (console_mode == 1)
91#define CONSOLE_IS_3215 (console_mode == 2)
92#define CONSOLE_IS_3270 (console_mode == 3)
93#define CONSOLE_IS_VT220 (console_mode == 4)
94#define CONSOLE_IS_HVC (console_mode == 5)
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)
98#define SET_CONSOLE_VT220 do { console_mode = 4; } while (0)
99#define SET_CONSOLE_HVC do { console_mode = 5; } while (0)
100
101#ifdef CONFIG_PFAULT
102extern int pfault_init(void);
103extern void pfault_fini(void);
104#else /* CONFIG_PFAULT */
105#define pfault_init() ({-1;})
106#define pfault_fini() do { } while (0)
107#endif /* CONFIG_PFAULT */
108
109#ifdef CONFIG_VMCP
110void vmcp_cma_reserve(void);
111#else
112static inline void vmcp_cma_reserve(void) { }
113#endif
114
115void report_user_fault(struct pt_regs *regs, long signr, int is_mm_fault);
116
117void cmma_init(void);
118void cmma_init_nodat(void);
119
120extern void (*_machine_restart)(char *command);
121extern void (*_machine_halt)(void);
122extern void (*_machine_power_off)(void);
123
124#else /* __ASSEMBLY__ */
125
126#define IPL_DEVICE 0x10400
127#define INITRD_START 0x10408
128#define INITRD_SIZE 0x10410
129#define OLDMEM_BASE 0x10418
130#define OLDMEM_SIZE 0x10420
131#define COMMAND_LINE 0x10480
132
133#endif /* __ASSEMBLY__ */
134#endif /* _ASM_S390_SETUP_H */