arch/s390/include/asm/diag.h

   1 /*
   2  * s390 diagnose functions
   3  *
   4  * Copyright IBM Corp. 2007
   5  * Author(s): Michael Holzheu <holzheu@de.ibm.com>
   6  */
   7
   8 #ifndef _ASM_S390_DIAG_H
   9 #define _ASM_S390_DIAG_H
  10
  11 #include <linux/percpu.h>
  12
  13 enum diag_stat_enum {
  14         DIAG_STAT_X008,
  15         DIAG_STAT_X00C,
  16         DIAG_STAT_X010,
  17         DIAG_STAT_X014,
  18         DIAG_STAT_X044,
  19         DIAG_STAT_X064,
  20         DIAG_STAT_X09C,
  21         DIAG_STAT_X0DC,
  22         DIAG_STAT_X204,
  23         DIAG_STAT_X210,
  24         DIAG_STAT_X224,
  25         DIAG_STAT_X250,
  26         DIAG_STAT_X258,
  27         DIAG_STAT_X288,
  28         DIAG_STAT_X2C4,
  29         DIAG_STAT_X2FC,
  30         DIAG_STAT_X304,
  31         DIAG_STAT_X308,
  32         DIAG_STAT_X500,
  33         NR_DIAG_STAT
  34 };
  35
  36 void diag_stat_inc(enum diag_stat_enum nr);
  37 void diag_stat_inc_norecursion(enum diag_stat_enum nr);
  38
  39 /*
  40  * Diagnose 10: Release page range
  41  */
  42 static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
  43 {
  44         unsigned long start_addr, end_addr;
  45
  46         start_addr = start_pfn << PAGE_SHIFT;
  47         end_addr = (start_pfn + num_pfn - 1) << PAGE_SHIFT;
  48
  49         diag_stat_inc(DIAG_STAT_X010);
  50         asm volatile(
  51                 "0:     diag    %0,%1,0x10\n"
  52                 "1:     nopr    %%r7\n"
  53                 EX_TABLE(0b, 1b)
  54                 EX_TABLE(1b, 1b)
  55                 : : "a" (start_addr), "a" (end_addr));
  56 }
  57
  58 /*
  59  * Diagnose 14: Input spool file manipulation
  60  */
  61 extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);
  62
  63 /*
  64  * Diagnose 210: Get information about a virtual device
  65  */
  66 struct diag210 {
  67         u16 vrdcdvno;   /* device number (input) */
  68         u16 vrdclen;    /* data block length (input) */
  69         u8 vrdcvcla;    /* virtual device class (output) */
  70         u8 vrdcvtyp;    /* virtual device type (output) */
  71         u8 vrdcvsta;    /* virtual device status (output) */
  72         u8 vrdcvfla;    /* virtual device flags (output) */
  73         u8 vrdcrccl;    /* real device class (output) */
  74         u8 vrdccrty;    /* real device type (output) */
  75         u8 vrdccrmd;    /* real device model (output) */
  76         u8 vrdccrft;    /* real device feature (output) */
  77 } __attribute__((packed, aligned(4)));
  78
  79 extern int diag210(struct diag210 *addr);
  80
  81 /* bit is set in flags, when physical cpu info is included in diag 204 data */
  82 #define DIAG204_LPAR_PHYS_FLG 0x80
  83 #define DIAG204_LPAR_NAME_LEN 8         /* lpar name len in diag 204 data */
  84 #define DIAG204_CPU_NAME_LEN 16         /* type name len of cpus in diag224 name table */
  85
  86 /* diag 204 subcodes */
  87 enum diag204_sc {
  88         DIAG204_SUBC_STIB4 = 4,
  89         DIAG204_SUBC_RSI = 5,
  90         DIAG204_SUBC_STIB6 = 6,
  91         DIAG204_SUBC_STIB7 = 7
  92 };
  93
  94 /* The two available diag 204 data formats */
  95 enum diag204_format {
  96         DIAG204_INFO_SIMPLE = 0,
  97         DIAG204_INFO_EXT = 0x00010000
  98 };
  99
 100 enum diag204_cpu_flags {
 101         DIAG204_CPU_ONLINE = 0x20,
 102         DIAG204_CPU_CAPPED = 0x40,
 103 };
 104
 105 struct diag204_info_blk_hdr {
 106         __u8  npar;
 107         __u8  flags;
 108         __u16 tslice;
 109         __u16 phys_cpus;
 110         __u16 this_part;
 111         __u64 curtod;
 112 } __packed;
 113
 114 struct diag204_x_info_blk_hdr {
 115         __u8  npar;
 116         __u8  flags;
 117         __u16 tslice;
 118         __u16 phys_cpus;
 119         __u16 this_part;
 120         __u64 curtod1;
 121         __u64 curtod2;
 122         char reserved[40];
 123 } __packed;
 124
 125 struct diag204_part_hdr {
 126         __u8 pn;
 127         __u8 cpus;
 128         char reserved[6];
 129         char part_name[DIAG204_LPAR_NAME_LEN];
 130 } __packed;
 131
 132 struct diag204_x_part_hdr {
 133         __u8  pn;
 134         __u8  cpus;
 135         __u8  rcpus;
 136         __u8  pflag;
 137         __u32 mlu;
 138         char  part_name[DIAG204_LPAR_NAME_LEN];
 139         char  lpc_name[8];
 140         char  os_name[8];
 141         __u64 online_cs;
 142         __u64 online_es;
 143         __u8  upid;
 144         __u8  reserved:3;
 145         __u8  mtid:5;
 146         char  reserved1[2];
 147         __u32 group_mlu;
 148         char  group_name[8];
 149         char  hardware_group_name[8];
 150         char  reserved2[24];
 151 } __packed;
 152
 153 struct diag204_cpu_info {
 154         __u16 cpu_addr;
 155         char  reserved1[2];
 156         __u8  ctidx;
 157         __u8  cflag;
 158         __u16 weight;
 159         __u64 acc_time;
 160         __u64 lp_time;
 161 } __packed;
 162
 163 struct diag204_x_cpu_info {
 164         __u16 cpu_addr;
 165         char  reserved1[2];
 166         __u8  ctidx;
 167         __u8  cflag;
 168         __u16 weight;
 169         __u64 acc_time;
 170         __u64 lp_time;
 171         __u16 min_weight;
 172         __u16 cur_weight;
 173         __u16 max_weight;
 174         char  reseved2[2];
 175         __u64 online_time;
 176         __u64 wait_time;
 177         __u32 pma_weight;
 178         __u32 polar_weight;
 179         __u32 cpu_type_cap;
 180         __u32 group_cpu_type_cap;
 181         char  reserved3[32];
 182 } __packed;
 183
 184 struct diag204_phys_hdr {
 185         char reserved1[1];
 186         __u8 cpus;
 187         char reserved2[6];
 188         char mgm_name[8];
 189 } __packed;
 190
 191 struct diag204_x_phys_hdr {
 192         char reserved1[1];
 193         __u8 cpus;
 194         char reserved2[6];
 195         char mgm_name[8];
 196         char reserved3[80];
 197 } __packed;
 198
 199 struct diag204_phys_cpu {
 200         __u16 cpu_addr;
 201         char  reserved1[2];
 202         __u8  ctidx;
 203         char  reserved2[3];
 204         __u64 mgm_time;
 205         char  reserved3[8];
 206 } __packed;
 207
 208 struct diag204_x_phys_cpu {
 209         __u16 cpu_addr;
 210         char  reserved1[2];
 211         __u8  ctidx;
 212         char  reserved2[1];
 213         __u16 weight;
 214         __u64 mgm_time;
 215         char  reserved3[80];
 216 } __packed;
 217
 218 struct diag204_x_part_block {
 219         struct diag204_x_part_hdr hdr;
 220         struct diag204_x_cpu_info cpus[];
 221 } __packed;
 222
 223 struct diag204_x_phys_block {
 224         struct diag204_x_phys_hdr hdr;
 225         struct diag204_x_phys_cpu cpus[];
 226 } __packed;
 227
 228 int diag204(unsigned long subcode, unsigned long size, void *addr);
 229 int diag224(void *ptr);
 230 #endif /* _ASM_S390_DIAG_H */