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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright IBM Corp. 2007
4 */
5
6#ifndef _ASM_S390_SCLP_H
7#define _ASM_S390_SCLP_H
8
9#include <linux/types.h>
10
11#define SCLP_CHP_INFO_MASK_SIZE 32
12#define EARLY_SCCB_SIZE PAGE_SIZE
13#define SCLP_MAX_CORES 512
14/* 144 + 16 * SCLP_MAX_CORES + 2 * (SCLP_MAX_CORES - 1) */
15#define EXT_SCCB_READ_SCP (3 * PAGE_SIZE)
16/* 24 + 16 * SCLP_MAX_CORES */
17#define EXT_SCCB_READ_CPU (3 * PAGE_SIZE)
18
19#ifndef __ASSEMBLY__
20#include <linux/uio.h>
21#include <asm/chpid.h>
22#include <asm/cpu.h>
23
24struct sclp_chp_info {
25 u8 recognized[SCLP_CHP_INFO_MASK_SIZE];
26 u8 standby[SCLP_CHP_INFO_MASK_SIZE];
27 u8 configured[SCLP_CHP_INFO_MASK_SIZE];
28};
29
30#define LOADPARM_LEN 8
31
32struct sclp_ipl_info {
33 int is_valid;
34 int has_dump;
35 char loadparm[LOADPARM_LEN];
36};
37
38struct sclp_core_entry {
39 u8 core_id;
40 u8 reserved0;
41 u8 : 4;
42 u8 sief2 : 1;
43 u8 skey : 1;
44 u8 : 2;
45 u8 : 2;
46 u8 gpere : 1;
47 u8 siif : 1;
48 u8 sigpif : 1;
49 u8 : 3;
50 u8 reserved2[3];
51 u8 : 2;
52 u8 ib : 1;
53 u8 cei : 1;
54 u8 : 4;
55 u8 reserved3[6];
56 u8 type;
57 u8 reserved1;
58} __attribute__((packed));
59
60struct sclp_core_info {
61 unsigned int configured;
62 unsigned int standby;
63 unsigned int combined;
64 struct sclp_core_entry core[SCLP_MAX_CORES];
65};
66
67struct sclp_info {
68 unsigned char has_linemode : 1;
69 unsigned char has_vt220 : 1;
70 unsigned char has_siif : 1;
71 unsigned char has_sigpif : 1;
72 unsigned char has_core_type : 1;
73 unsigned char has_sprp : 1;
74 unsigned char has_hvs : 1;
75 unsigned char has_esca : 1;
76 unsigned char has_sief2 : 1;
77 unsigned char has_64bscao : 1;
78 unsigned char has_gpere : 1;
79 unsigned char has_cmma : 1;
80 unsigned char has_gsls : 1;
81 unsigned char has_ib : 1;
82 unsigned char has_cei : 1;
83 unsigned char has_pfmfi : 1;
84 unsigned char has_ibs : 1;
85 unsigned char has_skey : 1;
86 unsigned char has_kss : 1;
87 unsigned char has_gisaf : 1;
88 unsigned char has_diag318 : 1;
89 unsigned char has_sipl : 1;
90 unsigned char has_sipl_eckd : 1;
91 unsigned char has_dirq : 1;
92 unsigned char has_iplcc : 1;
93 unsigned char has_zpci_lsi : 1;
94 unsigned char has_aisii : 1;
95 unsigned char has_aeni : 1;
96 unsigned char has_aisi : 1;
97 unsigned int ibc;
98 unsigned int mtid;
99 unsigned int mtid_cp;
100 unsigned int mtid_prev;
101 unsigned long rzm;
102 unsigned long rnmax;
103 unsigned long hamax;
104 unsigned int max_cores;
105 unsigned long hsa_size;
106 unsigned long facilities;
107 unsigned int hmfai;
108};
109extern struct sclp_info sclp;
110
111struct zpci_report_error_header {
112 u8 version; /* Interface version byte */
113 u8 action; /* Action qualifier byte
114 * 0: Adapter Reset Request
115 * 1: Deconfigure and repair action requested
116 * (OpenCrypto Problem Call Home)
117 * 2: Informational Report
118 * (OpenCrypto Successful Diagnostics Execution)
119 */
120 u16 length; /* Length of Subsequent Data (up to 4K – SCLP header */
121 u8 data[]; /* Subsequent Data passed verbatim to SCLP ET 24 */
122} __packed;
123
124extern char *sclp_early_sccb;
125
126void sclp_early_adjust_va(void);
127void sclp_early_set_buffer(void *sccb);
128int sclp_early_read_info(void);
129int sclp_early_read_storage_info(void);
130int sclp_early_get_core_info(struct sclp_core_info *info);
131void sclp_early_get_ipl_info(struct sclp_ipl_info *info);
132void sclp_early_detect(void);
133void sclp_early_printk(const char *s);
134void __sclp_early_printk(const char *s, unsigned int len);
135void sclp_emergency_printk(const char *s);
136
137int sclp_early_get_memsize(unsigned long *mem);
138int sclp_early_get_hsa_size(unsigned long *hsa_size);
139int _sclp_get_core_info(struct sclp_core_info *info);
140int sclp_core_configure(u8 core);
141int sclp_core_deconfigure(u8 core);
142int sclp_sdias_blk_count(void);
143int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
144int sclp_chp_configure(struct chp_id chpid);
145int sclp_chp_deconfigure(struct chp_id chpid);
146int sclp_chp_read_info(struct sclp_chp_info *info);
147int sclp_pci_configure(u32 fid);
148int sclp_pci_deconfigure(u32 fid);
149int sclp_ap_configure(u32 apid);
150int sclp_ap_deconfigure(u32 apid);
151int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid);
152size_t memcpy_hsa_iter(struct iov_iter *iter, unsigned long src, size_t count);
153void sclp_ocf_cpc_name_copy(char *dst);
154
155static inline int sclp_get_core_info(struct sclp_core_info *info, int early)
156{
157 if (early)
158 return sclp_early_get_core_info(info);
159 return _sclp_get_core_info(info);
160}
161
162#endif /* __ASSEMBLY__ */
163#endif /* _ASM_S390_SCLP_H */