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 <asm/chpid.h> 21 #include <asm/cpu.h> 22 23 struct sclp_chp_info { 24 u8 recognized[SCLP_CHP_INFO_MASK_SIZE]; 25 u8 standby[SCLP_CHP_INFO_MASK_SIZE]; 26 u8 configured[SCLP_CHP_INFO_MASK_SIZE]; 27 }; 28 29 #define LOADPARM_LEN 8 30 31 struct sclp_ipl_info { 32 int is_valid; 33 int has_dump; 34 char loadparm[LOADPARM_LEN]; 35 }; 36 37 struct sclp_core_entry { 38 u8 core_id; 39 u8 reserved0; 40 u8 : 4; 41 u8 sief2 : 1; 42 u8 skey : 1; 43 u8 : 2; 44 u8 : 2; 45 u8 gpere : 1; 46 u8 siif : 1; 47 u8 sigpif : 1; 48 u8 : 3; 49 u8 reserved2[3]; 50 u8 : 2; 51 u8 ib : 1; 52 u8 cei : 1; 53 u8 : 4; 54 u8 reserved3[6]; 55 u8 type; 56 u8 reserved1; 57 } __attribute__((packed)); 58 59 struct sclp_core_info { 60 unsigned int configured; 61 unsigned int standby; 62 unsigned int combined; 63 struct sclp_core_entry core[SCLP_MAX_CORES]; 64 }; 65 66 struct sclp_info { 67 unsigned char has_linemode : 1; 68 unsigned char has_vt220 : 1; 69 unsigned char has_siif : 1; 70 unsigned char has_sigpif : 1; 71 unsigned char has_core_type : 1; 72 unsigned char has_sprp : 1; 73 unsigned char has_hvs : 1; 74 unsigned char has_esca : 1; 75 unsigned char has_sief2 : 1; 76 unsigned char has_64bscao : 1; 77 unsigned char has_gpere : 1; 78 unsigned char has_cmma : 1; 79 unsigned char has_gsls : 1; 80 unsigned char has_ib : 1; 81 unsigned char has_cei : 1; 82 unsigned char has_pfmfi : 1; 83 unsigned char has_ibs : 1; 84 unsigned char has_skey : 1; 85 unsigned char has_kss : 1; 86 unsigned char has_gisaf : 1; 87 unsigned char has_diag318 : 1; 88 unsigned char has_sipl : 1; 89 unsigned char has_dirq : 1; 90 unsigned int ibc; 91 unsigned int mtid; 92 unsigned int mtid_cp; 93 unsigned int mtid_prev; 94 unsigned long rzm; 95 unsigned long rnmax; 96 unsigned long hamax; 97 unsigned int max_cores; 98 unsigned long hsa_size; 99 unsigned long facilities; 100 unsigned int hmfai; 101 }; 102 extern struct sclp_info sclp; 103 104 struct zpci_report_error_header { 105 u8 version; /* Interface version byte */ 106 u8 action; /* Action qualifier byte 107 * 0: Adapter Reset Request 108 * 1: Deconfigure and repair action requested 109 * (OpenCrypto Problem Call Home) 110 * 2: Informational Report 111 * (OpenCrypto Successful Diagnostics Execution) 112 */ 113 u16 length; /* Length of Subsequent Data (up to 4K – SCLP header */ 114 u8 data[]; /* Subsequent Data passed verbatim to SCLP ET 24 */ 115 } __packed; 116 117 extern char *sclp_early_sccb; 118 119 void sclp_early_adjust_va(void); 120 void sclp_early_set_buffer(void *sccb); 121 int sclp_early_read_info(void); 122 int sclp_early_read_storage_info(void); 123 int sclp_early_get_core_info(struct sclp_core_info *info); 124 void sclp_early_get_ipl_info(struct sclp_ipl_info *info); 125 void sclp_early_detect(void); 126 void sclp_early_printk(const char *s); 127 void __sclp_early_printk(const char *s, unsigned int len); 128 129 int sclp_early_get_memsize(unsigned long *mem); 130 int sclp_early_get_hsa_size(unsigned long *hsa_size); 131 int _sclp_get_core_info(struct sclp_core_info *info); 132 int sclp_core_configure(u8 core); 133 int sclp_core_deconfigure(u8 core); 134 int sclp_sdias_blk_count(void); 135 int sclp_sdias_copy(void *dest, int blk_num, int nr_blks); 136 int sclp_chp_configure(struct chp_id chpid); 137 int sclp_chp_deconfigure(struct chp_id chpid); 138 int sclp_chp_read_info(struct sclp_chp_info *info); 139 int sclp_pci_configure(u32 fid); 140 int sclp_pci_deconfigure(u32 fid); 141 int sclp_ap_configure(u32 apid); 142 int sclp_ap_deconfigure(u32 apid); 143 int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid); 144 int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count); 145 int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count); 146 void sclp_ocf_cpc_name_copy(char *dst); 147 148 static inline int sclp_get_core_info(struct sclp_core_info *info, int early) 149 { 150 if (early) 151 return sclp_early_get_core_info(info); 152 return _sclp_get_core_info(info); 153 } 154 155 #endif /* __ASSEMBLY__ */ 156 #endif /* _ASM_S390_SCLP_H */ 157