1 /* 2 * SCLP definitions 3 * 4 * Based on the file pc-bios/s390-ccw/sclp.h from QEMU 5 * Copyright (c) 2013 Alexander Graf <agraf@suse.de> 6 * 7 * and based on the file include/hw/s390x/sclp.h from QEMU 8 * Copyright IBM, Corp. 2012 9 * Author: Christian Borntraeger <borntraeger@de.ibm.com> 10 * 11 * This work is licensed under the terms of the GNU GPL, version 2 or (at 12 * your option) any later version. See the COPYING file in the top-level 13 * directory. 14 */ 15 16 #ifndef SCLP_H 17 #define SCLP_H 18 19 #define SCLP_CMD_CODE_MASK 0xffff00ff 20 21 /* SCLP command codes */ 22 #define SCLP_CMDW_READ_SCP_INFO 0x00020001 23 #define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001 24 #define SCLP_READ_STORAGE_ELEMENT_INFO 0x00040001 25 #define SCLP_ATTACH_STORAGE_ELEMENT 0x00080001 26 #define SCLP_ASSIGN_STORAGE 0x000D0001 27 #define SCLP_CMD_READ_EVENT_DATA 0x00770005 28 #define SCLP_CMD_WRITE_EVENT_DATA 0x00760005 29 #define SCLP_CMD_READ_EVENT_DATA 0x00770005 30 #define SCLP_CMD_WRITE_EVENT_DATA 0x00760005 31 #define SCLP_CMD_WRITE_EVENT_MASK 0x00780005 32 33 /* SCLP Memory hotplug codes */ 34 #define SCLP_FC_ASSIGN_ATTACH_READ_STOR 0xE00000000000ULL 35 #define SCLP_STARTING_SUBINCREMENT_ID 0x10001 36 #define SCLP_INCREMENT_UNIT 0x10000 37 #define MAX_AVAIL_SLOTS 32 38 #define MAX_STORAGE_INCREMENTS 1020 39 40 /* CPU hotplug SCLP codes */ 41 #define SCLP_HAS_CPU_INFO 0x0C00000000000000ULL 42 #define SCLP_CMDW_READ_CPU_INFO 0x00010001 43 #define SCLP_CMDW_CONFIGURE_CPU 0x00110001 44 #define SCLP_CMDW_DECONFIGURE_CPU 0x00100001 45 46 /* SCLP PCI codes */ 47 #define SCLP_HAS_IOA_RECONFIG 0x0000000040000000ULL 48 #define SCLP_CMDW_CONFIGURE_IOA 0x001a0001 49 #define SCLP_CMDW_DECONFIGURE_IOA 0x001b0001 50 #define SCLP_RECONFIG_PCI_ATYPE 2 51 52 /* SCLP response codes */ 53 #define SCLP_RC_NORMAL_READ_COMPLETION 0x0010 54 #define SCLP_RC_NORMAL_COMPLETION 0x0020 55 #define SCLP_RC_SCCB_BOUNDARY_VIOLATION 0x0100 56 #define SCLP_RC_NO_ACTION_REQUIRED 0x0120 57 #define SCLP_RC_INVALID_SCLP_COMMAND 0x01f0 58 #define SCLP_RC_CONTAINED_EQUIPMENT_CHECK 0x0340 59 #define SCLP_RC_INSUFFICIENT_SCCB_LENGTH 0x0300 60 #define SCLP_RC_STANDBY_READ_COMPLETION 0x0410 61 #define SCLP_RC_ADAPTER_IN_RESERVED_STATE 0x05f0 62 #define SCLP_RC_ADAPTER_TYPE_NOT_RECOGNIZED 0x06f0 63 #define SCLP_RC_ADAPTER_ID_NOT_RECOGNIZED 0x09f0 64 #define SCLP_RC_INVALID_FUNCTION 0x40f0 65 #define SCLP_RC_NO_EVENT_BUFFERS_STORED 0x60f0 66 #define SCLP_RC_INVALID_SELECTION_MASK 0x70f0 67 #define SCLP_RC_INCONSISTENT_LENGTHS 0x72f0 68 #define SCLP_RC_EVENT_BUFFER_SYNTAX_ERROR 0x73f0 69 #define SCLP_RC_INVALID_MASK_LENGTH 0x74f0 70 71 /* SCLP control mask bits */ 72 #define SCLP_CM2_VARIABLE_LENGTH_RESPONSE 0x80 73 74 /* SCLP function codes */ 75 #define SCLP_FC_NORMAL_WRITE 0 76 #define SCLP_FC_SINGLE_INCREMENT_ASSIGN 0x40 77 #define SCLP_FC_DUMP_INDICATOR 0x80 78 79 /* SCLP event buffer flags */ 80 #define SCLP_EVENT_BUFFER_ACCEPTED 0x80 81 82 /* Service Call Control Block (SCCB) and its elements */ 83 #define SCCB_SIZE 4096 84 85 typedef struct SCCBHeader { 86 uint16_t length; 87 uint8_t function_code; 88 uint8_t control_mask[3]; 89 uint16_t response_code; 90 } __attribute__((packed)) SCCBHeader; 91 92 #define SCCB_DATA_LEN (SCCB_SIZE - sizeof(SCCBHeader)) 93 #define SCCB_CPU_FEATURE_LEN 6 94 95 /* CPU information */ 96 typedef struct CPUEntry { 97 uint8_t address; 98 uint8_t reserved0; 99 uint8_t features[SCCB_CPU_FEATURE_LEN]; 100 uint8_t reserved2[6]; 101 uint8_t type; 102 uint8_t reserved1; 103 } __attribute__((packed)) CPUEntry; 104 105 typedef struct ReadInfo { 106 SCCBHeader h; 107 uint16_t rnmax; 108 uint8_t rnsize; 109 uint8_t _reserved1[16 - 11]; /* 11-15 */ 110 uint16_t entries_cpu; /* 16-17 */ 111 uint16_t offset_cpu; /* 18-19 */ 112 uint8_t _reserved2[24 - 20]; /* 20-23 */ 113 uint8_t loadparm[8]; /* 24-31 */ 114 uint8_t _reserved3[48 - 32]; /* 32-47 */ 115 uint64_t facilities; /* 48-55 */ 116 uint8_t _reserved0[76 - 56]; /* 56-75 */ 117 uint32_t ibc_val; 118 uint8_t conf_char[99 - 80]; /* 80-98 */ 119 uint8_t mha_pow; 120 uint32_t rnsize2; 121 uint64_t rnmax2; 122 uint8_t _reserved6[116 - 112]; /* 112-115 */ 123 uint8_t conf_char_ext[120 - 116]; /* 116-119 */ 124 uint16_t highest_cpu; 125 uint8_t _reserved5[124 - 122]; /* 122-123 */ 126 uint32_t hmfai; 127 struct CPUEntry entries[0]; 128 } __attribute__((packed)) ReadInfo; 129 130 typedef struct ReadCpuInfo { 131 SCCBHeader h; 132 uint16_t nr_configured; /* 8-9 */ 133 uint16_t offset_configured; /* 10-11 */ 134 uint16_t nr_standby; /* 12-13 */ 135 uint16_t offset_standby; /* 14-15 */ 136 uint8_t reserved0[24-16]; /* 16-23 */ 137 struct CPUEntry entries[0]; 138 } __attribute__((packed)) ReadCpuInfo; 139 140 typedef struct ReadStorageElementInfo { 141 SCCBHeader h; 142 uint16_t max_id; 143 uint16_t assigned; 144 uint16_t standby; 145 uint8_t _reserved0[16 - 14]; /* 14-15 */ 146 uint32_t entries[0]; 147 } __attribute__((packed)) ReadStorageElementInfo; 148 149 typedef struct AttachStorageElement { 150 SCCBHeader h; 151 uint8_t _reserved0[10 - 8]; /* 8-9 */ 152 uint16_t assigned; 153 uint8_t _reserved1[16 - 12]; /* 12-15 */ 154 uint32_t entries[0]; 155 } __attribute__((packed)) AttachStorageElement; 156 157 typedef struct AssignStorage { 158 SCCBHeader h; 159 uint16_t rn; 160 } __attribute__((packed)) AssignStorage; 161 162 typedef struct IoaCfgSccb { 163 SCCBHeader header; 164 uint8_t atype; 165 uint8_t reserved1; 166 uint16_t reserved2; 167 uint32_t aid; 168 } __attribute__((packed)) IoaCfgSccb; 169 170 typedef struct SCCB { 171 SCCBHeader h; 172 char data[SCCB_DATA_LEN]; 173 } __attribute__((packed)) SCCB; 174 175 /* SCLP event types */ 176 #define SCLP_EVENT_ASCII_CONSOLE_DATA 0x1a 177 #define SCLP_EVENT_SIGNAL_QUIESCE 0x1d 178 179 /* SCLP event masks */ 180 #define SCLP_EVENT_MASK_SIGNAL_QUIESCE 0x00000008 181 #define SCLP_EVENT_MASK_MSG_ASCII 0x00000040 182 183 #define SCLP_UNCONDITIONAL_READ 0x00 184 #define SCLP_SELECTIVE_READ 0x01 185 186 typedef struct WriteEventMask { 187 SCCBHeader h; 188 uint16_t _reserved; 189 uint16_t mask_length; 190 uint32_t cp_receive_mask; 191 uint32_t cp_send_mask; 192 uint32_t send_mask; 193 uint32_t receive_mask; 194 } __attribute__((packed)) WriteEventMask; 195 196 typedef struct EventBufferHeader { 197 uint16_t length; 198 uint8_t type; 199 uint8_t flags; 200 uint16_t _reserved; 201 } __attribute__((packed)) EventBufferHeader; 202 203 typedef struct WriteEventData { 204 SCCBHeader h; 205 EventBufferHeader ebh; 206 char data[0]; 207 } __attribute__((packed)) WriteEventData; 208 209 typedef struct ReadEventData { 210 SCCBHeader h; 211 EventBufferHeader ebh; 212 uint32_t mask; 213 } __attribute__((packed)) ReadEventData; 214 215 extern char _sccb[]; 216 void sclp_console_setup(void); 217 void sclp_print(const char *str); 218 int sclp_service_call(unsigned int command, void *sccb); 219 void sclp_memory_setup(void); 220 221 #endif /* SCLP_H */ 222