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