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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright IBM Corp. 2007
4 * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
5 */
6
7#ifndef _ASM_S390_SCLP_H
8#define _ASM_S390_SCLP_H
9
10#include <linux/types.h>
11#include <asm/chpid.h>
12#include <asm/cpu.h>
13
14#define SCLP_CHP_INFO_MASK_SIZE 32
15#define SCLP_MAX_CORES 256
16
17struct sclp_chp_info {
18 u8 recognized[SCLP_CHP_INFO_MASK_SIZE];
19 u8 standby[SCLP_CHP_INFO_MASK_SIZE];
20 u8 configured[SCLP_CHP_INFO_MASK_SIZE];
21};
22
23#define LOADPARM_LEN 8
24
25struct sclp_ipl_info {
26 int is_valid;
27 int has_dump;
28 char loadparm[LOADPARM_LEN];
29};
30
31struct sclp_core_entry {
32 u8 core_id;
33 u8 reserved0;
34 u8 : 4;
35 u8 sief2 : 1;
36 u8 skey : 1;
37 u8 : 2;
38 u8 : 2;
39 u8 gpere : 1;
40 u8 siif : 1;
41 u8 sigpif : 1;
42 u8 : 3;
43 u8 reserved2[3];
44 u8 : 2;
45 u8 ib : 1;
46 u8 cei : 1;
47 u8 : 4;
48 u8 reserved3[6];
49 u8 type;
50 u8 reserved1;
51} __attribute__((packed));
52
53struct sclp_core_info {
54 unsigned int configured;
55 unsigned int standby;
56 unsigned int combined;
57 struct sclp_core_entry core[SCLP_MAX_CORES];
58};
59
60struct sclp_info {
61 unsigned char has_linemode : 1;
62 unsigned char has_vt220 : 1;
63 unsigned char has_siif : 1;
64 unsigned char has_sigpif : 1;
65 unsigned char has_core_type : 1;
66 unsigned char has_sprp : 1;
67 unsigned char has_hvs : 1;
68 unsigned char has_esca : 1;
69 unsigned char has_sief2 : 1;
70 unsigned char has_64bscao : 1;
71 unsigned char has_gpere : 1;
72 unsigned char has_cmma : 1;
73 unsigned char has_gsls : 1;
74 unsigned char has_ib : 1;
75 unsigned char has_cei : 1;
76 unsigned char has_pfmfi : 1;
77 unsigned char has_ibs : 1;
78 unsigned char has_skey : 1;
79 unsigned char has_kss : 1;
80 unsigned char has_gisaf : 1;
81 unsigned char has_diag318 : 1;
82 unsigned char has_sipl : 1;
83 unsigned char has_sipl_g2 : 1;
84 unsigned char has_dirq : 1;
85 unsigned int ibc;
86 unsigned int mtid;
87 unsigned int mtid_cp;
88 unsigned int mtid_prev;
89 unsigned long rzm;
90 unsigned long rnmax;
91 unsigned long hamax;
92 unsigned int max_cores;
93 unsigned long hsa_size;
94 unsigned long facilities;
95 unsigned int hmfai;
96};
97extern struct sclp_info sclp;
98
99struct zpci_report_error_header {
100 u8 version; /* Interface version byte */
101 u8 action; /* Action qualifier byte
102 * 0: Adapter Reset Request
103 * 1: Deconfigure and repair action requested
104 * (OpenCrypto Problem Call Home)
105 * 2: Informational Report
106 * (OpenCrypto Successful Diagnostics Execution)
107 */
108 u16 length; /* Length of Subsequent Data (up to 4K – SCLP header */
109 u8 data[0]; /* Subsequent Data passed verbatim to SCLP ET 24 */
110} __packed;
111
112int sclp_early_read_info(void);
113int sclp_early_read_storage_info(void);
114int sclp_early_get_core_info(struct sclp_core_info *info);
115void sclp_early_get_ipl_info(struct sclp_ipl_info *info);
116void sclp_early_detect(void);
117void sclp_early_printk(const char *s);
118void sclp_early_printk_force(const char *s);
119void __sclp_early_printk(const char *s, unsigned int len, unsigned int force);
120
121int sclp_early_get_memsize(unsigned long *mem);
122int sclp_early_get_hsa_size(unsigned long *hsa_size);
123int _sclp_get_core_info(struct sclp_core_info *info);
124int sclp_core_configure(u8 core);
125int sclp_core_deconfigure(u8 core);
126int sclp_sdias_blk_count(void);
127int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
128int sclp_chp_configure(struct chp_id chpid);
129int sclp_chp_deconfigure(struct chp_id chpid);
130int sclp_chp_read_info(struct sclp_chp_info *info);
131int sclp_pci_configure(u32 fid);
132int sclp_pci_deconfigure(u32 fid);
133int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid);
134int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count);
135int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count);
136void sclp_ocf_cpc_name_copy(char *dst);
137
138static inline int sclp_get_core_info(struct sclp_core_info *info, int early)
139{
140 if (early)
141 return sclp_early_get_core_info(info);
142 return _sclp_get_core_info(info);
143}
144
145#endif /* _ASM_S390_SCLP_H */