xref: /openbmc/linux/arch/s390/include/asm/sclp.h (revision 8cf57d72)
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 
24 struct 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 
32 struct sclp_ipl_info {
33 	int is_valid;
34 	int has_dump;
35 	char loadparm[LOADPARM_LEN];
36 };
37 
38 struct 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 
60 struct 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 
67 struct 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_diag320 : 1;
90 	unsigned char has_sipl : 1;
91 	unsigned char has_sipl_eckd : 1;
92 	unsigned char has_dirq : 1;
93 	unsigned char has_iplcc : 1;
94 	unsigned char has_zpci_lsi : 1;
95 	unsigned char has_aisii : 1;
96 	unsigned char has_aeni : 1;
97 	unsigned char has_aisi : 1;
98 	unsigned int ibc;
99 	unsigned int mtid;
100 	unsigned int mtid_cp;
101 	unsigned int mtid_prev;
102 	unsigned long rzm;
103 	unsigned long rnmax;
104 	unsigned long hamax;
105 	unsigned int max_cores;
106 	unsigned long hsa_size;
107 	unsigned long facilities;
108 	unsigned int hmfai;
109 };
110 extern struct sclp_info sclp;
111 
112 struct zpci_report_error_header {
113 	u8 version;	/* Interface version byte */
114 	u8 action;	/* Action qualifier byte
115 			 * 0: Adapter Reset Request
116 			 * 1: Deconfigure and repair action requested
117 			 *	(OpenCrypto Problem Call Home)
118 			 * 2: Informational Report
119 			 *	(OpenCrypto Successful Diagnostics Execution)
120 			 */
121 	u16 length;	/* Length of Subsequent Data (up to 4K – SCLP header */
122 	u8 data[];	/* Subsequent Data passed verbatim to SCLP ET 24 */
123 } __packed;
124 
125 extern char *sclp_early_sccb;
126 
127 void sclp_early_adjust_va(void);
128 void sclp_early_set_buffer(void *sccb);
129 int sclp_early_read_info(void);
130 int sclp_early_read_storage_info(void);
131 int sclp_early_get_core_info(struct sclp_core_info *info);
132 void sclp_early_get_ipl_info(struct sclp_ipl_info *info);
133 void sclp_early_detect(void);
134 void sclp_early_printk(const char *s);
135 void __sclp_early_printk(const char *s, unsigned int len);
136 void sclp_emergency_printk(const char *s);
137 
138 int sclp_early_get_memsize(unsigned long *mem);
139 int sclp_early_get_hsa_size(unsigned long *hsa_size);
140 int _sclp_get_core_info(struct sclp_core_info *info);
141 int sclp_core_configure(u8 core);
142 int sclp_core_deconfigure(u8 core);
143 int sclp_sdias_blk_count(void);
144 int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
145 int sclp_chp_configure(struct chp_id chpid);
146 int sclp_chp_deconfigure(struct chp_id chpid);
147 int sclp_chp_read_info(struct sclp_chp_info *info);
148 int sclp_pci_configure(u32 fid);
149 int sclp_pci_deconfigure(u32 fid);
150 int sclp_ap_configure(u32 apid);
151 int sclp_ap_deconfigure(u32 apid);
152 int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid);
153 size_t memcpy_hsa_iter(struct iov_iter *iter, unsigned long src, size_t count);
154 void sclp_ocf_cpc_name_copy(char *dst);
155 
sclp_get_core_info(struct sclp_core_info * info,int early)156 static inline int sclp_get_core_info(struct sclp_core_info *info, int early)
157 {
158 	if (early)
159 		return sclp_early_get_core_info(info);
160 	return _sclp_get_core_info(info);
161 }
162 
163 #endif /* __ASSEMBLY__ */
164 #endif /* _ASM_S390_SCLP_H */
165