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