aboutsummaryrefslogtreecommitdiffstats
path: root/arch/s390/include/asm/sclp.h
blob: 5763769a39b65fddbd25af5d8ad5a9af00f2f2f7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
/* SPDX-License-Identifier: GPL-2.0 */
/*
 *    Copyright IBM Corp. 2007
 *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
 */

#ifndef _ASM_S390_SCLP_H
#define _ASM_S390_SCLP_H

#include <linux/types.h>
#include <asm/chpid.h>
#include <asm/cpu.h>

#define SCLP_CHP_INFO_MASK_SIZE		32
#define EARLY_SCCB_SIZE		PAGE_SIZE
#define SCLP_MAX_CORES		512
/* 144 + 16 * SCLP_MAX_CORES + 2 * (SCLP_MAX_CORES - 1) */
#define EXT_SCCB_READ_SCP	(3 * PAGE_SIZE)
/* 24 + 16 * SCLP_MAX_CORES */
#define EXT_SCCB_READ_CPU	(3 * PAGE_SIZE)

struct sclp_chp_info {
	u8 recognized[SCLP_CHP_INFO_MASK_SIZE];
	u8 standby[SCLP_CHP_INFO_MASK_SIZE];
	u8 configured[SCLP_CHP_INFO_MASK_SIZE];
};

#define LOADPARM_LEN 8

struct sclp_ipl_info {
	int is_valid;
	int has_dump;
	char loadparm[LOADPARM_LEN];
};

struct sclp_core_entry {
	u8 core_id;
	u8 reserved0;
	u8 : 4;
	u8 sief2 : 1;
	u8 skey : 1;
	u8 : 2;
	u8 : 2;
	u8 gpere : 1;
	u8 siif : 1;
	u8 sigpif : 1;
	u8 : 3;
	u8 reserved2[3];
	u8 : 2;
	u8 ib : 1;
	u8 cei : 1;
	u8 : 4;
	u8 reserved3[6];
	u8 type;
	u8 reserved1;
} __attribute__((packed));

struct sclp_core_info {
	unsigned int configured;
	unsigned int standby;
	unsigned int combined;
	struct sclp_core_entry core[SCLP_MAX_CORES];
};

struct sclp_info {
	unsigned char has_linemode : 1;
	unsigned char has_vt220 : 1;
	unsigned char has_siif : 1;
	unsigned char has_sigpif : 1;
	unsigned char has_core_type : 1;
	unsigned char has_sprp : 1;
	unsigned char has_hvs : 1;
	unsigned char has_esca : 1;
	unsigned char has_sief2 : 1;
	unsigned char has_64bscao : 1;
	unsigned char has_gpere : 1;
	unsigned char has_cmma : 1;
	unsigned char has_gsls : 1;
	unsigned char has_ib : 1;
	unsigned char has_cei : 1;
	unsigned char has_pfmfi : 1;
	unsigned char has_ibs : 1;
	unsigned char has_skey : 1;
	unsigned char has_kss : 1;
	unsigned char has_gisaf : 1;
	unsigned char has_diag318 : 1;
	unsigned char has_sipl : 1;
	unsigned char has_dirq : 1;
	unsigned int ibc;
	unsigned int mtid;
	unsigned int mtid_cp;
	unsigned int mtid_prev;
	unsigned long rzm;
	unsigned long rnmax;
	unsigned long hamax;
	unsigned int max_cores;
	unsigned long hsa_size;
	unsigned long facilities;
	unsigned int hmfai;
};
extern struct sclp_info sclp;

struct zpci_report_error_header {
	u8 version;	/* Interface version byte */
	u8 action;	/* Action qualifier byte
			 * 0: Adapter Reset Request
			 * 1: Deconfigure and repair action requested
			 *	(OpenCrypto Problem Call Home)
			 * 2: Informational Report
			 *	(OpenCrypto Successful Diagnostics Execution)
			 */
	u16 length;	/* Length of Subsequent Data (up to 4K – SCLP header */
	u8 data[0];	/* Subsequent Data passed verbatim to SCLP ET 24 */
} __packed;

int sclp_early_read_info(void);
int sclp_early_read_storage_info(void);
int sclp_early_get_core_info(struct sclp_core_info *info);
void sclp_early_get_ipl_info(struct sclp_ipl_info *info);
void sclp_early_detect(void);
void sclp_early_printk(const char *s);
void __sclp_early_printk(const char *s, unsigned int len);

int sclp_early_get_memsize(unsigned long *mem);
int sclp_early_get_hsa_size(unsigned long *hsa_size);
int _sclp_get_core_info(struct sclp_core_info *info);
int sclp_core_configure(u8 core);
int sclp_core_deconfigure(u8 core);
int sclp_sdias_blk_count(void);
int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
int sclp_chp_configure(struct chp_id chpid);
int sclp_chp_deconfigure(struct chp_id chpid);
int sclp_chp_read_info(struct sclp_chp_info *info);
int sclp_pci_configure(u32 fid);
int sclp_pci_deconfigure(u32 fid);
int sclp_ap_configure(u32 apid);
int sclp_ap_deconfigure(u32 apid);
int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid);
int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count);
int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count);
void sclp_ocf_cpc_name_copy(char *dst);

static inline int sclp_get_core_info(struct sclp_core_info *info, int early)
{
	if (early)
		return sclp_early_get_core_info(info);
	return _sclp_get_core_info(info);
}

#endif /* _ASM_S390_SCLP_H */

Privacy Policy