1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright IBM Corp. 2007 4 * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com> 5 */ 6 7 #ifndef _ASM_S390_SCLP_H 8 #define _ASM_S390_SCLP_H 9 10 #include <linux/types.h> 11 #include <asm/chpid.h> 12 #include <asm/cpu.h> 13 14 #define SCLP_CHP_INFO_MASK_SIZE 32 15 #define EARLY_SCCB_SIZE PAGE_SIZE 16 #define SCLP_MAX_CORES 512 17 /* 144 + 16 * SCLP_MAX_CORES + 2 * (SCLP_MAX_CORES - 1) */ 18 #define EXT_SCCB_READ_SCP (3 * PAGE_SIZE) 19 /* 24 + 16 * SCLP_MAX_CORES */ 20 #define EXT_SCCB_READ_CPU (3 * PAGE_SIZE) 21 22 struct sclp_chp_info { 23 u8 recognized[SCLP_CHP_INFO_MASK_SIZE]; 24 u8 standby[SCLP_CHP_INFO_MASK_SIZE]; 25 u8 configured[SCLP_CHP_INFO_MASK_SIZE]; 26 }; 27 28 #define LOADPARM_LEN 8 29 30 struct sclp_ipl_info { 31 int is_valid; 32 int has_dump; 33 char loadparm[LOADPARM_LEN]; 34 }; 35 36 struct sclp_core_entry { 37 u8 core_id; 38 u8 reserved0; 39 u8 : 4; 40 u8 sief2 : 1; 41 u8 skey : 1; 42 u8 : 2; 43 u8 : 2; 44 u8 gpere : 1; 45 u8 siif : 1; 46 u8 sigpif : 1; 47 u8 : 3; 48 u8 reserved2[3]; 49 u8 : 2; 50 u8 ib : 1; 51 u8 cei : 1; 52 u8 : 4; 53 u8 reserved3[6]; 54 u8 type; 55 u8 reserved1; 56 } __attribute__((packed)); 57 58 struct sclp_core_info { 59 unsigned int configured; 60 unsigned int standby; 61 unsigned int combined; 62 struct sclp_core_entry core[SCLP_MAX_CORES]; 63 }; 64 65 struct sclp_info { 66 unsigned char has_linemode : 1; 67 unsigned char has_vt220 : 1; 68 unsigned char has_siif : 1; 69 unsigned char has_sigpif : 1; 70 unsigned char has_core_type : 1; 71 unsigned char has_sprp : 1; 72 unsigned char has_hvs : 1; 73 unsigned char has_esca : 1; 74 unsigned char has_sief2 : 1; 75 unsigned char has_64bscao : 1; 76 unsigned char has_gpere : 1; 77 unsigned char has_cmma : 1; 78 unsigned char has_gsls : 1; 79 unsigned char has_ib : 1; 80 unsigned char has_cei : 1; 81 unsigned char has_pfmfi : 1; 82 unsigned char has_ibs : 1; 83 unsigned char has_skey : 1; 84 unsigned char has_kss : 1; 85 unsigned char has_gisaf : 1; 86 unsigned char has_diag318 : 1; 87 unsigned char has_sipl : 1; 88 unsigned char has_dirq : 1; 89 unsigned int ibc; 90 unsigned int mtid; 91 unsigned int mtid_cp; 92 unsigned int mtid_prev; 93 unsigned long rzm; 94 unsigned long rnmax; 95 unsigned long hamax; 96 unsigned int max_cores; 97 unsigned long hsa_size; 98 unsigned long facilities; 99 unsigned int hmfai; 100 }; 101 extern struct sclp_info sclp; 102 103 struct zpci_report_error_header { 104 u8 version; /* Interface version byte */ 105 u8 action; /* Action qualifier byte 106 * 0: Adapter Reset Request 107 * 1: Deconfigure and repair action requested 108 * (OpenCrypto Problem Call Home) 109 * 2: Informational Report 110 * (OpenCrypto Successful Diagnostics Execution) 111 */ 112 u16 length; /* Length of Subsequent Data (up to 4K – SCLP header */ 113 u8 data[0]; /* Subsequent Data passed verbatim to SCLP ET 24 */ 114 } __packed; 115 116 int sclp_early_read_info(void); 117 int sclp_early_read_storage_info(void); 118 int sclp_early_get_core_info(struct sclp_core_info *info); 119 void sclp_early_get_ipl_info(struct sclp_ipl_info *info); 120 void sclp_early_detect(void); 121 void sclp_early_printk(const char *s); 122 void __sclp_early_printk(const char *s, unsigned int len); 123 124 int sclp_early_get_memsize(unsigned long *mem); 125 int sclp_early_get_hsa_size(unsigned long *hsa_size); 126 int _sclp_get_core_info(struct sclp_core_info *info); 127 int sclp_core_configure(u8 core); 128 int sclp_core_deconfigure(u8 core); 129 int sclp_sdias_blk_count(void); 130 int sclp_sdias_copy(void *dest, int blk_num, int nr_blks); 131 int sclp_chp_configure(struct chp_id chpid); 132 int sclp_chp_deconfigure(struct chp_id chpid); 133 int sclp_chp_read_info(struct sclp_chp_info *info); 134 int sclp_pci_configure(u32 fid); 135 int sclp_pci_deconfigure(u32 fid); 136 int sclp_ap_configure(u32 apid); 137 int sclp_ap_deconfigure(u32 apid); 138 int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid); 139 int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count); 140 int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count); 141 void sclp_ocf_cpc_name_copy(char *dst); 142 143 static inline int sclp_get_core_info(struct sclp_core_info *info, int early) 144 { 145 if (early) 146 return sclp_early_get_core_info(info); 147 return _sclp_get_core_info(info); 148 } 149 150 #endif /* _ASM_S390_SCLP_H */ 151