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 #define SCLP_ERRNOTIFY_AQ_RESET 0 20 #define SCLP_ERRNOTIFY_AQ_REPAIR 1 21 #define SCLP_ERRNOTIFY_AQ_INFO_LOG 2 22 #define SCLP_ERRNOTIFY_AQ_OPTICS_DATA 3 23 #define SCLP_ERRNOTIFY_AQ_NVME_SMART_LOG 4 24 #define SCLP_ERRNOTIFY_AQ_ADAPTER_INITIALIZED 5 25 #define SCLP_ERRNOTIFY_AQ_RECOVERABLE_ERROR 6 26 #define SCLP_ERRNOTIFY_AQ_TELEMETRY_DATA 7 27 28 #ifndef __ASSEMBLER__ 29 #include <linux/uio.h> 30 #include <asm/chpid.h> 31 #include <asm/cpu.h> 32 33 struct sclp_chp_info { 34 u8 recognized[SCLP_CHP_INFO_MASK_SIZE]; 35 u8 standby[SCLP_CHP_INFO_MASK_SIZE]; 36 u8 configured[SCLP_CHP_INFO_MASK_SIZE]; 37 }; 38 39 #define LOADPARM_LEN 8 40 41 struct sclp_ipl_info { 42 int is_valid; 43 int has_dump; 44 char loadparm[LOADPARM_LEN]; 45 }; 46 47 struct sclp_core_entry { 48 u8 core_id; 49 u8 reserved0; 50 u8 : 4; 51 u8 sief2 : 1; 52 u8 skey : 1; 53 u8 : 2; 54 u8 : 2; 55 u8 gpere : 1; 56 u8 siif : 1; 57 u8 sigpif : 1; 58 u8 : 3; 59 u8 reserved2[3]; 60 u8 : 2; 61 u8 ib : 1; 62 u8 cei : 1; 63 u8 : 4; 64 u8 reserved3[6]; 65 u8 type; 66 u8 reserved1; 67 } __attribute__((packed)); 68 69 struct sclp_core_info { 70 unsigned int configured; 71 unsigned int standby; 72 unsigned int combined; 73 struct sclp_core_entry core[SCLP_MAX_CORES]; 74 }; 75 76 struct sclp_info { 77 unsigned char has_linemode : 1; 78 unsigned char has_vt220 : 1; 79 unsigned char has_siif : 1; 80 unsigned char has_sigpif : 1; 81 unsigned char has_core_type : 1; 82 unsigned char has_sprp : 1; 83 unsigned char has_hvs : 1; 84 unsigned char has_wti : 1; 85 unsigned char has_esca : 1; 86 unsigned char has_sief2 : 1; 87 unsigned char has_64bscao : 1; 88 unsigned char has_gpere : 1; 89 unsigned char has_cmma : 1; 90 unsigned char has_gsls : 1; 91 unsigned char has_ib : 1; 92 unsigned char has_cei : 1; 93 unsigned char has_pfmfi : 1; 94 unsigned char has_ibs : 1; 95 unsigned char has_skey : 1; 96 unsigned char has_kss : 1; 97 unsigned char has_diag204_bif : 1; 98 unsigned char has_gisaf : 1; 99 unsigned char has_diag310 : 1; 100 unsigned char has_diag318 : 1; 101 unsigned char has_diag320 : 1; 102 unsigned char has_diag324 : 1; 103 unsigned char has_sipl : 1; 104 unsigned char has_sipl_eckd : 1; 105 unsigned char has_dirq : 1; 106 unsigned char has_iplcc : 1; 107 unsigned char has_zpci_lsi : 1; 108 unsigned char has_aisii : 1; 109 unsigned char has_aeni : 1; 110 unsigned char has_aisi : 1; 111 unsigned char has_astfleie2 : 1; 112 unsigned int ibc; 113 unsigned int mtid; 114 unsigned int mtid_cp; 115 unsigned int mtid_prev; 116 unsigned long rzm; 117 unsigned long rnmax; 118 unsigned long hamax; 119 unsigned int max_cores; 120 unsigned long hsa_size; 121 unsigned long facilities; 122 unsigned int hmfai; 123 }; 124 extern struct sclp_info sclp; 125 126 struct sccb_header { 127 u16 length; 128 u8 function_code; 129 u8 control_mask[3]; 130 u16 response_code; 131 } __packed; 132 133 struct evbuf_header { 134 u16 length; 135 u8 type; 136 u8 flags; 137 u16 _reserved; 138 } __packed; 139 140 struct err_notify_evbuf { 141 struct evbuf_header header; 142 u8 action; 143 u8 atype; 144 u32 fh; 145 u32 fid; 146 u8 data[]; 147 } __packed; 148 149 struct err_notify_sccb { 150 struct sccb_header header; 151 struct err_notify_evbuf evbuf; 152 } __packed; 153 154 struct zpci_report_error_header { 155 u8 version; /* Interface version byte */ 156 u8 action; /* Action qualifier byte 157 * 0: Adapter Reset Request 158 * 1: Deconfigure and repair action requested 159 * (OpenCrypto Problem Call Home) 160 * 2: Informational Report 161 * (OpenCrypto Successful Diagnostics Execution) 162 */ 163 u16 length; /* Length of Subsequent Data (up to 4K – SCLP header */ 164 u8 data[]; /* Subsequent Data passed verbatim to SCLP ET 24 */ 165 } __packed; 166 167 extern char *sclp_early_sccb; 168 169 void sclp_early_adjust_va(void); 170 void sclp_early_set_buffer(void *sccb); 171 int sclp_early_read_info(void); 172 int sclp_early_read_storage_info(void); 173 int sclp_early_get_core_info(struct sclp_core_info *info); 174 void sclp_early_get_ipl_info(struct sclp_ipl_info *info); 175 void sclp_early_detect(void); 176 void sclp_early_detect_machine_features(void); 177 void sclp_early_printk(const char *s); 178 void __sclp_early_printk(const char *s, unsigned int len); 179 void sclp_emergency_printk(const char *s); 180 181 int sclp_init(void); 182 int sclp_early_get_memsize(unsigned long *mem); 183 int sclp_early_get_hsa_size(unsigned long *hsa_size); 184 int _sclp_get_core_info(struct sclp_core_info *info); 185 int sclp_core_configure(u8 core); 186 int sclp_core_deconfigure(u8 core); 187 int sclp_sdias_blk_count(void); 188 int sclp_sdias_copy(void *dest, int blk_num, int nr_blks); 189 int sclp_chp_configure(struct chp_id chpid); 190 int sclp_chp_deconfigure(struct chp_id chpid); 191 int sclp_chp_read_info(struct sclp_chp_info *info); 192 int sclp_pci_configure(u32 fid); 193 int sclp_pci_deconfigure(u32 fid); 194 int sclp_ap_configure(u32 apid); 195 int sclp_ap_deconfigure(u32 apid); 196 int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid); 197 size_t memcpy_hsa_iter(struct iov_iter *iter, unsigned long src, size_t count); 198 void sclp_ocf_cpc_name_copy(char *dst); 199 200 static inline int sclp_get_core_info(struct sclp_core_info *info, int early) 201 { 202 if (early) 203 return sclp_early_get_core_info(info); 204 return _sclp_get_core_info(info); 205 } 206 207 #endif /* __ASSEMBLER__ */ 208 #endif /* _ASM_S390_SCLP_H */ 209