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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * S390 version
4 * Copyright IBM Corp. 1999, 2017
5 */
6#ifndef _ASM_S390_SETUP_H
7#define _ASM_S390_SETUP_H
8
9#include <linux/bits.h>
10#include <uapi/asm/setup.h>
11#include <linux/build_bug.h>
12
13#define PARMAREA 0x10400
14
15#define COMMAND_LINE_SIZE CONFIG_COMMAND_LINE_SIZE
16/*
17 * Machine features detected in early.c
18 */
19
20#define MACHINE_FLAG_VM BIT(0)
21#define MACHINE_FLAG_KVM BIT(1)
22#define MACHINE_FLAG_LPAR BIT(2)
23#define MACHINE_FLAG_DIAG9C BIT(3)
24#define MACHINE_FLAG_ESOP BIT(4)
25#define MACHINE_FLAG_IDTE BIT(5)
26#define MACHINE_FLAG_EDAT1 BIT(7)
27#define MACHINE_FLAG_EDAT2 BIT(8)
28#define MACHINE_FLAG_TOPOLOGY BIT(10)
29#define MACHINE_FLAG_TE BIT(11)
30#define MACHINE_FLAG_TLB_LC BIT(12)
31#define MACHINE_FLAG_VX BIT(13)
32#define MACHINE_FLAG_TLB_GUEST BIT(14)
33#define MACHINE_FLAG_NX BIT(15)
34#define MACHINE_FLAG_GS BIT(16)
35#define MACHINE_FLAG_SCC BIT(17)
36#define MACHINE_FLAG_PCI_MIO BIT(18)
37
38#define LPP_MAGIC BIT(31)
39#define LPP_PID_MASK _AC(0xffffffff, UL)
40
41/* Offsets to entry points in kernel/head.S */
42
43#define STARTUP_NORMAL_OFFSET 0x10000
44#define STARTUP_KDUMP_OFFSET 0x10010
45
46#define LEGACY_COMMAND_LINE_SIZE 896
47
48#ifndef __ASSEMBLY__
49
50#include <asm/lowcore.h>
51#include <asm/types.h>
52
53struct parmarea {
54 unsigned long ipl_device; /* 0x10400 */
55 unsigned long initrd_start; /* 0x10408 */
56 unsigned long initrd_size; /* 0x10410 */
57 unsigned long oldmem_base; /* 0x10418 */
58 unsigned long oldmem_size; /* 0x10420 */
59 unsigned long kernel_version; /* 0x10428 */
60 unsigned long max_command_line_size; /* 0x10430 */
61 char pad1[0x10480-0x10438]; /* 0x10438 - 0x10480 */
62 char command_line[COMMAND_LINE_SIZE]; /* 0x10480 */
63};
64
65extern struct parmarea parmarea;
66
67extern unsigned int zlib_dfltcc_support;
68#define ZLIB_DFLTCC_DISABLED 0
69#define ZLIB_DFLTCC_FULL 1
70#define ZLIB_DFLTCC_DEFLATE_ONLY 2
71#define ZLIB_DFLTCC_INFLATE_ONLY 3
72#define ZLIB_DFLTCC_FULL_DEBUG 4
73
74extern int noexec_disabled;
75extern unsigned long ident_map_size;
76
77/* The Write Back bit position in the physaddr is given by the SLPC PCI */
78extern unsigned long mio_wb_bit_mask;
79
80#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
81#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
82#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
83
84#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
85#define MACHINE_HAS_ESOP (S390_lowcore.machine_flags & MACHINE_FLAG_ESOP)
86#define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
87#define MACHINE_HAS_EDAT1 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1)
88#define MACHINE_HAS_EDAT2 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2)
89#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
90#define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE)
91#define MACHINE_HAS_TLB_LC (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_LC)
92#define MACHINE_HAS_VX (S390_lowcore.machine_flags & MACHINE_FLAG_VX)
93#define MACHINE_HAS_TLB_GUEST (S390_lowcore.machine_flags & MACHINE_FLAG_TLB_GUEST)
94#define MACHINE_HAS_NX (S390_lowcore.machine_flags & MACHINE_FLAG_NX)
95#define MACHINE_HAS_GS (S390_lowcore.machine_flags & MACHINE_FLAG_GS)
96#define MACHINE_HAS_SCC (S390_lowcore.machine_flags & MACHINE_FLAG_SCC)
97#define MACHINE_HAS_PCI_MIO (S390_lowcore.machine_flags & MACHINE_FLAG_PCI_MIO)
98
99/*
100 * Console mode. Override with conmode=
101 */
102extern unsigned int console_mode;
103extern unsigned int console_devno;
104extern unsigned int console_irq;
105
106#define CONSOLE_IS_UNDEFINED (console_mode == 0)
107#define CONSOLE_IS_SCLP (console_mode == 1)
108#define CONSOLE_IS_3215 (console_mode == 2)
109#define CONSOLE_IS_3270 (console_mode == 3)
110#define CONSOLE_IS_VT220 (console_mode == 4)
111#define CONSOLE_IS_HVC (console_mode == 5)
112#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
113#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
114#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
115#define SET_CONSOLE_VT220 do { console_mode = 4; } while (0)
116#define SET_CONSOLE_HVC do { console_mode = 5; } while (0)
117
118#ifdef CONFIG_PFAULT
119extern int pfault_init(void);
120extern void pfault_fini(void);
121#else /* CONFIG_PFAULT */
122#define pfault_init() ({-1;})
123#define pfault_fini() do { } while (0)
124#endif /* CONFIG_PFAULT */
125
126#ifdef CONFIG_VMCP
127void vmcp_cma_reserve(void);
128#else
129static inline void vmcp_cma_reserve(void) { }
130#endif
131
132void report_user_fault(struct pt_regs *regs, long signr, int is_mm_fault);
133
134void cmma_init(void);
135void cmma_init_nodat(void);
136
137extern void (*_machine_restart)(char *command);
138extern void (*_machine_halt)(void);
139extern void (*_machine_power_off)(void);
140
141extern unsigned long __kaslr_offset;
142static inline unsigned long kaslr_offset(void)
143{
144 return __kaslr_offset;
145}
146
147extern int is_full_image;
148
149struct initrd_data {
150 unsigned long start;
151 unsigned long size;
152};
153extern struct initrd_data initrd_data;
154
155struct oldmem_data {
156 unsigned long start;
157 unsigned long size;
158};
159extern struct oldmem_data oldmem_data;
160
161static inline u32 gen_lpswe(unsigned long addr)
162{
163 BUILD_BUG_ON(addr > 0xfff);
164 return 0xb2b20000 | addr;
165}
166#endif /* __ASSEMBLY__ */
167#endif /* _ASM_S390_SETUP_H */
1/*
2 * include/asm-s390/setup.h
3 *
4 * S390 version
5 * Copyright IBM Corp. 1999,2010
6 */
7
8#ifndef _ASM_S390_SETUP_H
9#define _ASM_S390_SETUP_H
10
11#define COMMAND_LINE_SIZE 4096
12
13#define ARCH_COMMAND_LINE_SIZE 896
14
15#ifdef __KERNEL__
16
17#define PARMAREA 0x10400
18#define MEMORY_CHUNKS 256
19
20#ifndef __ASSEMBLY__
21
22#include <asm/lowcore.h>
23#include <asm/types.h>
24
25#ifndef __s390x__
26#define IPL_DEVICE (*(unsigned long *) (0x10404))
27#define INITRD_START (*(unsigned long *) (0x1040C))
28#define INITRD_SIZE (*(unsigned long *) (0x10414))
29#else /* __s390x__ */
30#define IPL_DEVICE (*(unsigned long *) (0x10400))
31#define INITRD_START (*(unsigned long *) (0x10408))
32#define INITRD_SIZE (*(unsigned long *) (0x10410))
33#endif /* __s390x__ */
34#define COMMAND_LINE ((char *) (0x10480))
35
36#define CHUNK_READ_WRITE 0
37#define CHUNK_READ_ONLY 1
38
39struct mem_chunk {
40 unsigned long addr;
41 unsigned long size;
42 int type;
43};
44
45extern struct mem_chunk memory_chunk[];
46extern unsigned long real_memory_size;
47extern int memory_end_set;
48extern unsigned long memory_end;
49
50void detect_memory_layout(struct mem_chunk chunk[]);
51
52#define PRIMARY_SPACE_MODE 0
53#define ACCESS_REGISTER_MODE 1
54#define SECONDARY_SPACE_MODE 2
55#define HOME_SPACE_MODE 3
56
57extern unsigned int user_mode;
58
59/*
60 * Machine features detected in head.S
61 */
62
63#define MACHINE_FLAG_VM (1UL << 0)
64#define MACHINE_FLAG_IEEE (1UL << 1)
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)
72#define MACHINE_FLAG_HPAGE (1UL << 10)
73#define MACHINE_FLAG_PFMF (1UL << 11)
74#define MACHINE_FLAG_LPAR (1UL << 12)
75#define MACHINE_FLAG_SPP (1UL << 13)
76#define MACHINE_FLAG_TOPOLOGY (1UL << 14)
77
78#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
79#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
80#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
81
82#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
83
84#ifndef __s390x__
85#define MACHINE_HAS_IEEE (S390_lowcore.machine_flags & MACHINE_FLAG_IEEE)
86#define MACHINE_HAS_CSP (S390_lowcore.machine_flags & MACHINE_FLAG_CSP)
87#define MACHINE_HAS_IDTE (0)
88#define MACHINE_HAS_DIAG44 (1)
89#define MACHINE_HAS_MVPG (S390_lowcore.machine_flags & MACHINE_FLAG_MVPG)
90#define MACHINE_HAS_MVCOS (0)
91#define MACHINE_HAS_HPAGE (0)
92#define MACHINE_HAS_PFMF (0)
93#define MACHINE_HAS_SPP (0)
94#define MACHINE_HAS_TOPOLOGY (0)
95#else /* __s390x__ */
96#define MACHINE_HAS_IEEE (1)
97#define MACHINE_HAS_CSP (1)
98#define MACHINE_HAS_IDTE (S390_lowcore.machine_flags & MACHINE_FLAG_IDTE)
99#define MACHINE_HAS_DIAG44 (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG44)
100#define MACHINE_HAS_MVPG (1)
101#define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
102#define MACHINE_HAS_HPAGE (S390_lowcore.machine_flags & MACHINE_FLAG_HPAGE)
103#define MACHINE_HAS_PFMF (S390_lowcore.machine_flags & MACHINE_FLAG_PFMF)
104#define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
105#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
106#endif /* __s390x__ */
107
108#define ZFCPDUMP_HSA_SIZE (32UL<<20)
109
110/*
111 * Console mode. Override with conmode=
112 */
113extern unsigned int console_mode;
114extern unsigned int console_devno;
115extern unsigned int console_irq;
116
117extern char vmhalt_cmd[];
118extern char vmpoff_cmd[];
119
120#define CONSOLE_IS_UNDEFINED (console_mode == 0)
121#define CONSOLE_IS_SCLP (console_mode == 1)
122#define CONSOLE_IS_3215 (console_mode == 2)
123#define CONSOLE_IS_3270 (console_mode == 3)
124#define SET_CONSOLE_SCLP do { console_mode = 1; } while (0)
125#define SET_CONSOLE_3215 do { console_mode = 2; } while (0)
126#define SET_CONSOLE_3270 do { console_mode = 3; } while (0)
127
128#define NSS_NAME_SIZE 8
129extern char kernel_nss_name[];
130
131#else /* __ASSEMBLY__ */
132
133#ifndef __s390x__
134#define IPL_DEVICE 0x10404
135#define INITRD_START 0x1040C
136#define INITRD_SIZE 0x10414
137#else /* __s390x__ */
138#define IPL_DEVICE 0x10400
139#define INITRD_START 0x10408
140#define INITRD_SIZE 0x10410
141#endif /* __s390x__ */
142#define COMMAND_LINE 0x10480
143
144#endif /* __ASSEMBLY__ */
145#endif /* __KERNEL__ */
146#endif /* _ASM_S390_SETUP_H */