1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright IBM Corp. 2007
4 * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
7 #ifndef _ASM_S390_SCLP_H
8 #define _ASM_S390_SCLP_H
10 #include <linux/types.h>
11 #include <asm/chpid.h>
14 #define SCLP_CHP_INFO_MASK_SIZE 32
15 #define EARLY_SCCB_SIZE PAGE_SIZE
16 #define SCLP_MAX_CORES 512
17 /* 144 + 16 * SCLP_MAX_CORES + 2 * (SCLP_MAX_CORES - 1) */
18 #define EXT_SCCB_READ_SCP (3 * PAGE_SIZE)
19 /* 24 + 16 * SCLP_MAX_CORES */
20 #define EXT_SCCB_READ_CPU (3 * PAGE_SIZE)
22 struct sclp_chp_info
{
23 u8 recognized
[SCLP_CHP_INFO_MASK_SIZE
];
24 u8 standby
[SCLP_CHP_INFO_MASK_SIZE
];
25 u8 configured
[SCLP_CHP_INFO_MASK_SIZE
];
28 #define LOADPARM_LEN 8
30 struct sclp_ipl_info
{
33 char loadparm
[LOADPARM_LEN
];
36 struct sclp_core_entry
{
56 } __attribute__((packed
));
58 struct sclp_core_info
{
59 unsigned int configured
;
61 unsigned int combined
;
62 struct sclp_core_entry core
[SCLP_MAX_CORES
];
66 unsigned char has_linemode
: 1;
67 unsigned char has_vt220
: 1;
68 unsigned char has_siif
: 1;
69 unsigned char has_sigpif
: 1;
70 unsigned char has_core_type
: 1;
71 unsigned char has_sprp
: 1;
72 unsigned char has_hvs
: 1;
73 unsigned char has_esca
: 1;
74 unsigned char has_sief2
: 1;
75 unsigned char has_64bscao
: 1;
76 unsigned char has_gpere
: 1;
77 unsigned char has_cmma
: 1;
78 unsigned char has_gsls
: 1;
79 unsigned char has_ib
: 1;
80 unsigned char has_cei
: 1;
81 unsigned char has_pfmfi
: 1;
82 unsigned char has_ibs
: 1;
83 unsigned char has_skey
: 1;
84 unsigned char has_kss
: 1;
85 unsigned char has_gisaf
: 1;
86 unsigned char has_diag318
: 1;
87 unsigned char has_sipl
: 1;
88 unsigned char has_dirq
: 1;
92 unsigned int mtid_prev
;
96 unsigned int max_cores
;
97 unsigned long hsa_size
;
98 unsigned long facilities
;
101 extern struct sclp_info sclp
;
103 struct zpci_report_error_header
{
104 u8 version
; /* Interface version byte */
105 u8 action
; /* Action qualifier byte
106 * 0: Adapter Reset Request
107 * 1: Deconfigure and repair action requested
108 * (OpenCrypto Problem Call Home)
109 * 2: Informational Report
110 * (OpenCrypto Successful Diagnostics Execution)
112 u16 length
; /* Length of Subsequent Data (up to 4K – SCLP header */
113 u8 data
[0]; /* Subsequent Data passed verbatim to SCLP ET 24 */
116 int sclp_early_read_info(void);
117 int sclp_early_read_storage_info(void);
118 int sclp_early_get_core_info(struct sclp_core_info
*info
);
119 void sclp_early_get_ipl_info(struct sclp_ipl_info
*info
);
120 void sclp_early_detect(void);
121 void sclp_early_printk(const char *s
);
122 void __sclp_early_printk(const char *s
, unsigned int len
);
124 int sclp_early_get_memsize(unsigned long *mem
);
125 int sclp_early_get_hsa_size(unsigned long *hsa_size
);
126 int _sclp_get_core_info(struct sclp_core_info
*info
);
127 int sclp_core_configure(u8 core
);
128 int sclp_core_deconfigure(u8 core
);
129 int sclp_sdias_blk_count(void);
130 int sclp_sdias_copy(void *dest
, int blk_num
, int nr_blks
);
131 int sclp_chp_configure(struct chp_id chpid
);
132 int sclp_chp_deconfigure(struct chp_id chpid
);
133 int sclp_chp_read_info(struct sclp_chp_info
*info
);
134 int sclp_pci_configure(u32 fid
);
135 int sclp_pci_deconfigure(u32 fid
);
136 int sclp_ap_configure(u32 apid
);
137 int sclp_ap_deconfigure(u32 apid
);
138 int sclp_pci_report(struct zpci_report_error_header
*report
, u32 fh
, u32 fid
);
139 int memcpy_hsa_kernel(void *dest
, unsigned long src
, size_t count
);
140 int memcpy_hsa_user(void __user
*dest
, unsigned long src
, size_t count
);
141 void sclp_ocf_cpc_name_copy(char *dst
);
143 static inline int sclp_get_core_info(struct sclp_core_info
*info
, int early
)
146 return sclp_early_get_core_info(info
);
147 return _sclp_get_core_info(info
);
150 #endif /* _ASM_S390_SCLP_H */