1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * s390 diagnose functions 4 * 5 * Copyright IBM Corp. 2007 6 * Author(s): Michael Holzheu <holzheu@de.ibm.com> 7 */ 8 9 #ifndef _ASM_S390_DIAG_H 10 #define _ASM_S390_DIAG_H 11 12 #include <linux/if_ether.h> 13 #include <linux/percpu.h> 14 #include <asm/asm-extable.h> 15 #include <asm/sclp.h> 16 #include <asm/cio.h> 17 18 enum diag_stat_enum { 19 DIAG_STAT_X008, 20 DIAG_STAT_X00C, 21 DIAG_STAT_X010, 22 DIAG_STAT_X014, 23 DIAG_STAT_X044, 24 DIAG_STAT_X064, 25 DIAG_STAT_X08C, 26 DIAG_STAT_X09C, 27 DIAG_STAT_X0DC, 28 DIAG_STAT_X204, 29 DIAG_STAT_X210, 30 DIAG_STAT_X224, 31 DIAG_STAT_X250, 32 DIAG_STAT_X258, 33 DIAG_STAT_X26C, 34 DIAG_STAT_X288, 35 DIAG_STAT_X2C4, 36 DIAG_STAT_X2FC, 37 DIAG_STAT_X304, 38 DIAG_STAT_X308, 39 DIAG_STAT_X318, 40 DIAG_STAT_X320, 41 DIAG_STAT_X49C, 42 DIAG_STAT_X500, 43 NR_DIAG_STAT 44 }; 45 46 void diag_stat_inc(enum diag_stat_enum nr); 47 void diag_stat_inc_norecursion(enum diag_stat_enum nr); 48 49 struct hypfs_diag0c_entry; 50 51 /* 52 * Diagnose 0c: Pseudo Timer 53 */ 54 void diag0c(struct hypfs_diag0c_entry *data); 55 56 /* 57 * Diagnose 10: Release page range 58 */ diag10_range(unsigned long start_pfn,unsigned long num_pfn)59 static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn) 60 { 61 unsigned long start_addr, end_addr; 62 63 start_addr = pfn_to_phys(start_pfn); 64 end_addr = pfn_to_phys(start_pfn + num_pfn - 1); 65 66 diag_stat_inc(DIAG_STAT_X010); 67 asm volatile( 68 "0: diag %0,%1,0x10\n" 69 "1: nopr %%r7\n" 70 EX_TABLE(0b, 1b) 71 EX_TABLE(1b, 1b) 72 : : "a" (start_addr), "a" (end_addr)); 73 } 74 75 /* 76 * Diagnose 14: Input spool file manipulation 77 */ 78 extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode); 79 80 /* 81 * Diagnose 210: Get information about a virtual device 82 */ 83 struct diag210 { 84 u16 vrdcdvno; /* device number (input) */ 85 u16 vrdclen; /* data block length (input) */ 86 u8 vrdcvcla; /* virtual device class (output) */ 87 u8 vrdcvtyp; /* virtual device type (output) */ 88 u8 vrdcvsta; /* virtual device status (output) */ 89 u8 vrdcvfla; /* virtual device flags (output) */ 90 u8 vrdcrccl; /* real device class (output) */ 91 u8 vrdccrty; /* real device type (output) */ 92 u8 vrdccrmd; /* real device model (output) */ 93 u8 vrdccrft; /* real device feature (output) */ 94 } __packed __aligned(4); 95 96 extern int diag210(struct diag210 *addr); 97 98 struct diag8c { 99 u8 flags; 100 u8 num_partitions; 101 u16 width; 102 u16 height; 103 u8 data[]; 104 } __packed __aligned(4); 105 106 extern int diag8c(struct diag8c *out, struct ccw_dev_id *devno); 107 108 /* bit is set in flags, when physical cpu info is included in diag 204 data */ 109 #define DIAG204_LPAR_PHYS_FLG 0x80 110 #define DIAG204_LPAR_NAME_LEN 8 /* lpar name len in diag 204 data */ 111 #define DIAG204_CPU_NAME_LEN 16 /* type name len of cpus in diag224 name table */ 112 113 /* diag 204 subcodes */ 114 enum diag204_sc { 115 DIAG204_SUBC_STIB4 = 4, 116 DIAG204_SUBC_RSI = 5, 117 DIAG204_SUBC_STIB6 = 6, 118 DIAG204_SUBC_STIB7 = 7 119 }; 120 121 #define DIAG204_SUBCODE_MASK 0xffff 122 #define DIAG204_BIF_BIT 0x80000000 123 #define DIAG204_BUSY_WAIT (HZ / 10) 124 125 /* The two available diag 204 data formats */ 126 enum diag204_format { 127 DIAG204_INFO_SIMPLE = 0, 128 DIAG204_INFO_EXT = 0x00010000 129 }; 130 131 enum diag204_cpu_flags { 132 DIAG204_CPU_ONLINE = 0x20, 133 DIAG204_CPU_CAPPED = 0x40, 134 }; 135 136 struct diag204_info_blk_hdr { 137 __u8 npar; 138 __u8 flags; 139 __u16 tslice; 140 __u16 phys_cpus; 141 __u16 this_part; 142 __u64 curtod; 143 } __packed; 144 145 struct diag204_x_info_blk_hdr { 146 __u8 npar; 147 __u8 flags; 148 __u16 tslice; 149 __u16 phys_cpus; 150 __u16 this_part; 151 __u64 curtod1; 152 __u64 curtod2; 153 char reserved[40]; 154 } __packed; 155 156 struct diag204_part_hdr { 157 __u8 pn; 158 __u8 cpus; 159 char reserved[6]; 160 char part_name[DIAG204_LPAR_NAME_LEN]; 161 } __packed; 162 163 struct diag204_x_part_hdr { 164 __u8 pn; 165 __u8 cpus; 166 __u8 rcpus; 167 __u8 pflag; 168 __u32 mlu; 169 char part_name[DIAG204_LPAR_NAME_LEN]; 170 char lpc_name[8]; 171 char os_name[8]; 172 __u64 online_cs; 173 __u64 online_es; 174 __u8 upid; 175 __u8 reserved:3; 176 __u8 mtid:5; 177 char reserved1[2]; 178 __u32 group_mlu; 179 char group_name[8]; 180 char hardware_group_name[8]; 181 char reserved2[24]; 182 } __packed; 183 184 struct diag204_cpu_info { 185 __u16 cpu_addr; 186 char reserved1[2]; 187 __u8 ctidx; 188 __u8 cflag; 189 __u16 weight; 190 __u64 acc_time; 191 __u64 lp_time; 192 } __packed; 193 194 struct diag204_x_cpu_info { 195 __u16 cpu_addr; 196 char reserved1[2]; 197 __u8 ctidx; 198 __u8 cflag; 199 __u16 weight; 200 __u64 acc_time; 201 __u64 lp_time; 202 __u16 min_weight; 203 __u16 cur_weight; 204 __u16 max_weight; 205 char reseved2[2]; 206 __u64 online_time; 207 __u64 wait_time; 208 __u32 pma_weight; 209 __u32 polar_weight; 210 __u32 cpu_type_cap; 211 __u32 group_cpu_type_cap; 212 char reserved3[32]; 213 } __packed; 214 215 struct diag204_phys_hdr { 216 char reserved1[1]; 217 __u8 cpus; 218 char reserved2[6]; 219 char mgm_name[8]; 220 } __packed; 221 222 struct diag204_x_phys_hdr { 223 char reserved1[1]; 224 __u8 cpus; 225 char reserved2[6]; 226 char mgm_name[8]; 227 char reserved3[80]; 228 } __packed; 229 230 struct diag204_phys_cpu { 231 __u16 cpu_addr; 232 char reserved1[2]; 233 __u8 ctidx; 234 char reserved2[3]; 235 __u64 mgm_time; 236 char reserved3[8]; 237 } __packed; 238 239 struct diag204_x_phys_cpu { 240 __u16 cpu_addr; 241 char reserved1[2]; 242 __u8 ctidx; 243 char reserved2[1]; 244 __u16 weight; 245 __u64 mgm_time; 246 char reserved3[80]; 247 } __packed; 248 249 struct diag204_x_part_block { 250 struct diag204_x_part_hdr hdr; 251 struct diag204_x_cpu_info cpus[]; 252 } __packed; 253 254 struct diag204_x_phys_block { 255 struct diag204_x_phys_hdr hdr; 256 struct diag204_x_phys_cpu cpus[]; 257 } __packed; 258 259 enum diag26c_sc { 260 DIAG26C_PORT_VNIC = 0x00000024, 261 DIAG26C_MAC_SERVICES = 0x00000030 262 }; 263 264 enum diag26c_version { 265 DIAG26C_VERSION2 = 0x00000002, /* z/VM 5.4.0 */ 266 DIAG26C_VERSION6_VM65918 = 0x00020006 /* z/VM 6.4.0 + VM65918 */ 267 }; 268 269 #define DIAG26C_VNIC_INFO 0x0002 270 struct diag26c_vnic_req { 271 u32 resp_buf_len; 272 u32 resp_version; 273 u16 req_format; 274 u16 vlan_id; 275 u64 sys_name; 276 u8 res[2]; 277 u16 devno; 278 } __packed __aligned(8); 279 280 #define VNIC_INFO_PROT_L3 1 281 #define VNIC_INFO_PROT_L2 2 282 /* Note: this is the bare minimum, use it for uninitialized VNICs only. */ 283 struct diag26c_vnic_resp { 284 u32 version; 285 u32 entry_cnt; 286 /* VNIC info: */ 287 u32 next_entry; 288 u64 owner; 289 u16 devno; 290 u8 status; 291 u8 type; 292 u64 lan_owner; 293 u64 lan_name; 294 u64 port_name; 295 u8 port_type; 296 u8 ext_status:6; 297 u8 protocol:2; 298 u16 base_devno; 299 u32 port_num; 300 u32 ifindex; 301 u32 maxinfo; 302 u32 dev_count; 303 /* 3x device info: */ 304 u8 dev_info1[28]; 305 u8 dev_info2[28]; 306 u8 dev_info3[28]; 307 } __packed __aligned(8); 308 309 #define DIAG26C_GET_MAC 0x0000 310 struct diag26c_mac_req { 311 u32 resp_buf_len; 312 u32 resp_version; 313 u16 op_code; 314 u16 devno; 315 u8 res[4]; 316 }; 317 318 struct diag26c_mac_resp { 319 u32 version; 320 u8 mac[ETH_ALEN]; 321 u8 res[2]; 322 } __aligned(8); 323 324 #define CPNC_LINUX 0x4 325 union diag318_info { 326 unsigned long val; 327 struct { 328 unsigned long cpnc : 8; 329 unsigned long cpvc : 56; 330 }; 331 }; 332 diag204_has_bif(void)333 static inline bool diag204_has_bif(void) 334 { 335 return sclp.has_diag204_bif; 336 } 337 338 int diag204(unsigned long subcode, unsigned long size, void *addr); 339 int diag224(void *ptr); 340 int diag26c(void *req, void *resp, enum diag26c_sc subcode); 341 342 struct hypfs_diag0c_entry; 343 344 /* 345 * This structure must contain only pointers/references into 346 * the AMODE31 text section. 347 */ 348 struct diag_ops { 349 int (*diag210)(struct diag210 *addr); 350 int (*diag26c)(unsigned long rx, unsigned long rx1, enum diag26c_sc subcode); 351 int (*diag14)(unsigned long rx, unsigned long ry1, unsigned long subcode); 352 int (*diag8c)(struct diag8c *addr, struct ccw_dev_id *devno, size_t len); 353 void (*diag0c)(unsigned long rx); 354 void (*diag308_reset)(void); 355 }; 356 357 extern struct diag_ops diag_amode31_ops; 358 extern struct diag210 *__diag210_tmp_amode31; 359 360 int _diag210_amode31(struct diag210 *addr); 361 int _diag26c_amode31(unsigned long rx, unsigned long rx1, enum diag26c_sc subcode); 362 int _diag14_amode31(unsigned long rx, unsigned long ry1, unsigned long subcode); 363 void _diag0c_amode31(unsigned long rx); 364 void _diag308_reset_amode31(void); 365 int _diag8c_amode31(struct diag8c *addr, struct ccw_dev_id *devno, size_t len); 366 367 /* diag 49c subcodes */ 368 enum diag49c_sc { 369 DIAG49C_SUBC_ACK = 0, 370 DIAG49C_SUBC_REG = 1 371 }; 372 373 int diag49c(unsigned long subcode); 374 375 #endif /* _ASM_S390_DIAG_H */ 376