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
17 struct 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
25 struct sclp_ipl_info {
26 int is_valid;
27 int has_dump;
28 char loadparm[LOADPARM_LEN];
29 };
30
31 struct 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
53 struct 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
60 struct 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_dirq : 1;
84 unsigned int ibc;
85 unsigned int mtid;
86 unsigned int mtid_cp;
87 unsigned int mtid_prev;
88 unsigned long rzm;
89 unsigned long rnmax;
90 unsigned long hamax;
91 unsigned int max_cores;
92 unsigned long hsa_size;
93 unsigned long facilities;
94 unsigned int hmfai;
95 };
96 extern struct sclp_info sclp;
97
98 struct zpci_report_error_header {
99 u8 version; /* Interface version byte */
100 u8 action; /* Action qualifier byte
101 * 0: Adapter Reset Request
102 * 1: Deconfigure and repair action requested
103 * (OpenCrypto Problem Call Home)
104 * 2: Informational Report
105 * (OpenCrypto Successful Diagnostics Execution)
106 */
107 u16 length; /* Length of Subsequent Data (up to 4K – SCLP header */
108 u8 data[0]; /* Subsequent Data passed verbatim to SCLP ET 24 */
109 } __packed;
110
111 int sclp_early_read_info(void);
112 int sclp_early_read_storage_info(void);
113 int sclp_early_get_core_info(struct sclp_core_info *info);
114 void sclp_early_get_ipl_info(struct sclp_ipl_info *info);
115 void sclp_early_detect(void);
116 void sclp_early_printk(const char *s);
117 void __sclp_early_printk(const char *s, unsigned int len);
118
119 int sclp_early_get_memsize(unsigned long *mem);
120 int sclp_early_get_hsa_size(unsigned long *hsa_size);
121 int _sclp_get_core_info(struct sclp_core_info *info);
122 int sclp_core_configure(u8 core);
123 int sclp_core_deconfigure(u8 core);
124 int sclp_sdias_blk_count(void);
125 int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
126 int sclp_chp_configure(struct chp_id chpid);
127 int sclp_chp_deconfigure(struct chp_id chpid);
128 int sclp_chp_read_info(struct sclp_chp_info *info);
129 int sclp_pci_configure(u32 fid);
130 int sclp_pci_deconfigure(u32 fid);
131 int sclp_ap_configure(u32 apid);
132 int sclp_ap_deconfigure(u32 apid);
133 int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid);
134 int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count);
135 int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count);
136 void sclp_ocf_cpc_name_copy(char *dst);
137
sclp_get_core_info(struct sclp_core_info * info,int early)138 static 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 */
146