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 SCLP_MAX_CORES 256 16 17 struct sclp_chp_info { 18 u8 recognized[SCLP_CHP_INFO_MASK_SIZE]; 19 u8 standby[SCLP_CHP_INFO_MASK_SIZE]; 20 u8 configured[SCLP_CHP_INFO_MASK_SIZE]; 21 }; 22 23 #define LOADPARM_LEN 8 24 25 struct sclp_ipl_info { 26 int is_valid; 27 int has_dump; 28 char loadparm[LOADPARM_LEN]; 29 }; 30 31 struct sclp_core_entry { 32 u8 core_id; 33 u8 reserved0; 34 u8 : 4; 35 u8 sief2 : 1; 36 u8 skey : 1; 37 u8 : 2; 38 u8 : 2; 39 u8 gpere : 1; 40 u8 siif : 1; 41 u8 sigpif : 1; 42 u8 : 3; 43 u8 reserved2[3]; 44 u8 : 2; 45 u8 ib : 1; 46 u8 cei : 1; 47 u8 : 4; 48 u8 reserved3[6]; 49 u8 type; 50 u8 reserved1; 51 } __attribute__((packed)); 52 53 struct sclp_core_info { 54 unsigned int configured; 55 unsigned int standby; 56 unsigned int combined; 57 struct sclp_core_entry core[SCLP_MAX_CORES]; 58 }; 59 60 struct sclp_info { 61 unsigned char has_linemode : 1; 62 unsigned char has_vt220 : 1; 63 unsigned char has_siif : 1; 64 unsigned char has_sigpif : 1; 65 unsigned char has_core_type : 1; 66 unsigned char has_sprp : 1; 67 unsigned char has_hvs : 1; 68 unsigned char has_esca : 1; 69 unsigned char has_sief2 : 1; 70 unsigned char has_64bscao : 1; 71 unsigned char has_gpere : 1; 72 unsigned char has_cmma : 1; 73 unsigned char has_gsls : 1; 74 unsigned char has_ib : 1; 75 unsigned char has_cei : 1; 76 unsigned char has_pfmfi : 1; 77 unsigned char has_ibs : 1; 78 unsigned char has_skey : 1; 79 unsigned char has_kss : 1; 80 unsigned char has_gisaf : 1; 81 unsigned char has_diag318 : 1; 82 unsigned char has_sipl : 1; 83 unsigned char has_dirq : 1; 84 unsigned int ibc; 85 unsigned int mtid; 86 unsigned int mtid_cp; 87 unsigned int mtid_prev; 88 unsigned long rzm; 89 unsigned long rnmax; 90 unsigned long hamax; 91 unsigned int max_cores; 92 unsigned long hsa_size; 93 unsigned long facilities; 94 unsigned int hmfai; 95 }; 96 extern struct sclp_info sclp; 97 98 struct zpci_report_error_header { 99 u8 version; /* Interface version byte */ 100 u8 action; /* Action qualifier byte 101 * 0: Adapter Reset Request 102 * 1: Deconfigure and repair action requested 103 * (OpenCrypto Problem Call Home) 104 * 2: Informational Report 105 * (OpenCrypto Successful Diagnostics Execution) 106 */ 107 u16 length; /* Length of Subsequent Data (up to 4K – SCLP header */ 108 u8 data[0]; /* Subsequent Data passed verbatim to SCLP ET 24 */ 109 } __packed; 110 111 int sclp_early_read_info(void); 112 int sclp_early_read_storage_info(void); 113 int sclp_early_get_core_info(struct sclp_core_info *info); 114 void sclp_early_get_ipl_info(struct sclp_ipl_info *info); 115 void sclp_early_detect(void); 116 void sclp_early_printk(const char *s); 117 void __sclp_early_printk(const char *s, unsigned int len); 118 119 int sclp_early_get_memsize(unsigned long *mem); 120 int sclp_early_get_hsa_size(unsigned long *hsa_size); 121 int _sclp_get_core_info(struct sclp_core_info *info); 122 int sclp_core_configure(u8 core); 123 int sclp_core_deconfigure(u8 core); 124 int sclp_sdias_blk_count(void); 125 int sclp_sdias_copy(void *dest, int blk_num, int nr_blks); 126 int sclp_chp_configure(struct chp_id chpid); 127 int sclp_chp_deconfigure(struct chp_id chpid); 128 int sclp_chp_read_info(struct sclp_chp_info *info); 129 int sclp_pci_configure(u32 fid); 130 int sclp_pci_deconfigure(u32 fid); 131 int sclp_ap_configure(u32 apid); 132 int sclp_ap_deconfigure(u32 apid); 133 int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid); 134 int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count); 135 int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count); 136 void sclp_ocf_cpc_name_copy(char *dst); 137 138 static inline int sclp_get_core_info(struct sclp_core_info *info, int early) 139 { 140 if (early) 141 return sclp_early_get_core_info(info); 142 return _sclp_get_core_info(info); 143 } 144 145 #endif /* _ASM_S390_SCLP_H */ 146