arch/s390/include/asm/diag.h

   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
  15 enum diag_stat_enum {
  16         DIAG_STAT_X008,
  17         DIAG_STAT_X00C,
  18         DIAG_STAT_X010,
  19         DIAG_STAT_X014,
  20         DIAG_STAT_X044,
  21         DIAG_STAT_X064,
  22         DIAG_STAT_X09C,
  23         DIAG_STAT_X0DC,
  24         DIAG_STAT_X204,
  25         DIAG_STAT_X210,
  26         DIAG_STAT_X224,
  27         DIAG_STAT_X250,
  28         DIAG_STAT_X258,
  29         DIAG_STAT_X26C,
  30         DIAG_STAT_X288,
  31         DIAG_STAT_X2C4,
  32         DIAG_STAT_X2FC,
  33         DIAG_STAT_X304,
  34         DIAG_STAT_X308,
  35         DIAG_STAT_X500,
  36         NR_DIAG_STAT
  37 };
  38
  39 void diag_stat_inc(enum diag_stat_enum nr);
  40 void diag_stat_inc_norecursion(enum diag_stat_enum nr);
  41
  42 /*
  43  * Diagnose 10: Release page range
  44  */
  45 static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
  46 {
  47         unsigned long start_addr, end_addr;
  48
  49         start_addr = start_pfn << PAGE_SHIFT;
  50         end_addr = (start_pfn + num_pfn - 1) << PAGE_SHIFT;
  51
  52         diag_stat_inc(DIAG_STAT_X010);
  53         asm volatile(
  54                 "0:     diag    %0,%1,0x10\n"
  55                 "1:     nopr    %%r7\n"
  56                 EX_TABLE(0b, 1b)
  57                 EX_TABLE(1b, 1b)
  58                 : : "a" (start_addr), "a" (end_addr));
  59 }
  60
  61 /*
  62  * Diagnose 14: Input spool file manipulation
  63  */
  64 extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);
  65
  66 /*
  67  * Diagnose 210: Get information about a virtual device
  68  */
  69 struct diag210 {
  70         u16 vrdcdvno;   /* device number (input) */
  71         u16 vrdclen;    /* data block length (input) */
  72         u8 vrdcvcla;    /* virtual device class (output) */
  73         u8 vrdcvtyp;    /* virtual device type (output) */
  74         u8 vrdcvsta;    /* virtual device status (output) */
  75         u8 vrdcvfla;    /* virtual device flags (output) */
  76         u8 vrdcrccl;    /* real device class (output) */
  77         u8 vrdccrty;    /* real device type (output) */
  78         u8 vrdccrmd;    /* real device model (output) */
  79         u8 vrdccrft;    /* real device feature (output) */
  80 } __attribute__((packed, aligned(4)));
  81
  82 extern int diag210(struct diag210 *addr);
  83
  84 /* bit is set in flags, when physical cpu info is included in diag 204 data */
  85 #define DIAG204_LPAR_PHYS_FLG 0x80
  86 #define DIAG204_LPAR_NAME_LEN 8         /* lpar name len in diag 204 data */
  87 #define DIAG204_CPU_NAME_LEN 16         /* type name len of cpus in diag224 name table */
  88
  89 /* diag 204 subcodes */
  90 enum diag204_sc {
  91         DIAG204_SUBC_STIB4 = 4,
  92         DIAG204_SUBC_RSI = 5,
  93         DIAG204_SUBC_STIB6 = 6,
  94         DIAG204_SUBC_STIB7 = 7
  95 };
  96
  97 /* The two available diag 204 data formats */
  98 enum diag204_format {
  99         DIAG204_INFO_SIMPLE = 0,
 100         DIAG204_INFO_EXT = 0x00010000
 101 };
 102
 103 enum diag204_cpu_flags {
 104         DIAG204_CPU_ONLINE = 0x20,
 105         DIAG204_CPU_CAPPED = 0x40,
 106 };
 107
 108 struct diag204_info_blk_hdr {
 109         __u8  npar;
 110         __u8  flags;
 111         __u16 tslice;
 112         __u16 phys_cpus;
 113         __u16 this_part;
 114         __u64 curtod;
 115 } __packed;
 116
 117 struct diag204_x_info_blk_hdr {
 118         __u8  npar;
 119         __u8  flags;
 120         __u16 tslice;
 121         __u16 phys_cpus;
 122         __u16 this_part;
 123         __u64 curtod1;
 124         __u64 curtod2;
 125         char reserved[40];
 126 } __packed;
 127
 128 struct diag204_part_hdr {
 129         __u8 pn;
 130         __u8 cpus;
 131         char reserved[6];
 132         char part_name[DIAG204_LPAR_NAME_LEN];
 133 } __packed;
 134
 135 struct diag204_x_part_hdr {
 136         __u8  pn;
 137         __u8  cpus;
 138         __u8  rcpus;
 139         __u8  pflag;
 140         __u32 mlu;
 141         char  part_name[DIAG204_LPAR_NAME_LEN];
 142         char  lpc_name[8];
 143         char  os_name[8];
 144         __u64 online_cs;
 145         __u64 online_es;
 146         __u8  upid;
 147         __u8  reserved:3;
 148         __u8  mtid:5;
 149         char  reserved1[2];
 150         __u32 group_mlu;
 151         char  group_name[8];
 152         char  hardware_group_name[8];
 153         char  reserved2[24];
 154 } __packed;
 155
 156 struct diag204_cpu_info {
 157         __u16 cpu_addr;
 158         char  reserved1[2];
 159         __u8  ctidx;
 160         __u8  cflag;
 161         __u16 weight;
 162         __u64 acc_time;
 163         __u64 lp_time;
 164 } __packed;
 165
 166 struct diag204_x_cpu_info {
 167         __u16 cpu_addr;
 168         char  reserved1[2];
 169         __u8  ctidx;
 170         __u8  cflag;
 171         __u16 weight;
 172         __u64 acc_time;
 173         __u64 lp_time;
 174         __u16 min_weight;
 175         __u16 cur_weight;
 176         __u16 max_weight;
 177         char  reseved2[2];
 178         __u64 online_time;
 179         __u64 wait_time;
 180         __u32 pma_weight;
 181         __u32 polar_weight;
 182         __u32 cpu_type_cap;
 183         __u32 group_cpu_type_cap;
 184         char  reserved3[32];
 185 } __packed;
 186
 187 struct diag204_phys_hdr {
 188         char reserved1[1];
 189         __u8 cpus;
 190         char reserved2[6];
 191         char mgm_name[8];
 192 } __packed;
 193
 194 struct diag204_x_phys_hdr {
 195         char reserved1[1];
 196         __u8 cpus;
 197         char reserved2[6];
 198         char mgm_name[8];
 199         char reserved3[80];
 200 } __packed;
 201
 202 struct diag204_phys_cpu {
 203         __u16 cpu_addr;
 204         char  reserved1[2];
 205         __u8  ctidx;
 206         char  reserved2[3];
 207         __u64 mgm_time;
 208         char  reserved3[8];
 209 } __packed;
 210
 211 struct diag204_x_phys_cpu {
 212         __u16 cpu_addr;
 213         char  reserved1[2];
 214         __u8  ctidx;
 215         char  reserved2[1];
 216         __u16 weight;
 217         __u64 mgm_time;
 218         char  reserved3[80];
 219 } __packed;
 220
 221 struct diag204_x_part_block {
 222         struct diag204_x_part_hdr hdr;
 223         struct diag204_x_cpu_info cpus[];
 224 } __packed;
 225
 226 struct diag204_x_phys_block {
 227         struct diag204_x_phys_hdr hdr;
 228         struct diag204_x_phys_cpu cpus[];
 229 } __packed;
 230
 231 enum diag26c_sc {
 232         DIAG26C_MAC_SERVICES = 0x00000030
 233 };
 234
 235 enum diag26c_version {
 236         DIAG26C_VERSION2 = 0x00000002   /* z/VM 5.4.0 */
 237 };
 238
 239 #define DIAG26C_GET_MAC 0x0000
 240 struct diag26c_mac_req {
 241         u32     resp_buf_len;
 242         u32     resp_version;
 243         u16     op_code;
 244         u16     devno;
 245         u8      res[4];
 246 };
 247
 248 struct diag26c_mac_resp {
 249         u32     version;
 250         u8      mac[ETH_ALEN];
 251         u8      res[2];
 252 } __aligned(8);
 253
 254 int diag204(unsigned long subcode, unsigned long size, void *addr);
 255 int diag224(void *ptr);
 256 int diag26c(void *req, void *resp, enum diag26c_sc subcode);
 257 #endif /* _ASM_S390_DIAG_H */