LXR linux/arch/s390/include/asm/runtime

   1#ifndef _RUNTIME_INSTR_H
   2#define _RUNTIME_INSTR_H
   3
   4#define S390_RUNTIME_INSTR_START        0x1
   5#define S390_RUNTIME_INSTR_STOP         0x2
   6
   7struct runtime_instr_cb {
   8        __u64 buf_current;
   9        __u64 buf_origin;
  10        __u64 buf_limit;
  11
  12        __u32 valid             : 1;
  13        __u32 pstate            : 1;
  14        __u32 pstate_set_buf    : 1;
  15        __u32 home_space        : 1;
  16        __u32 altered           : 1;
  17        __u32                   : 3;
  18        __u32 pstate_sample     : 1;
  19        __u32 sstate_sample     : 1;
  20        __u32 pstate_collect    : 1;
  21        __u32 sstate_collect    : 1;
  22        __u32                   : 1;
  23        __u32 halted_int        : 1;
  24        __u32 int_requested     : 1;
  25        __u32 buffer_full_int   : 1;
  26        __u32 key               : 4;
  27        __u32                   : 9;
  28        __u32 rgs               : 3;
  29
  30        __u32 mode              : 4;
  31        __u32 next              : 1;
  32        __u32 mae               : 1;
  33        __u32                   : 2;
  34        __u32 call_type_br      : 1;
  35        __u32 return_type_br    : 1;
  36        __u32 other_type_br     : 1;
  37        __u32 bc_other_type     : 1;
  38        __u32 emit              : 1;
  39        __u32 tx_abort          : 1;
  40        __u32                   : 2;
  41        __u32 bp_xn             : 1;
  42        __u32 bp_xt             : 1;
  43        __u32 bp_ti             : 1;
  44        __u32 bp_ni             : 1;
  45        __u32 suppr_y           : 1;
  46        __u32 suppr_z           : 1;
  47
  48        __u32 dc_miss_extra     : 1;
  49        __u32 lat_lev_ignore    : 1;
  50        __u32 ic_lat_lev        : 4;
  51        __u32 dc_lat_lev        : 4;
  52
  53        __u64 reserved1;
  54        __u64 scaling_factor;
  55        __u64 rsic;
  56        __u64 reserved2;
  57} __packed __aligned(8);
  58
  59extern struct runtime_instr_cb runtime_instr_empty_cb;
  60
  61static inline void load_runtime_instr_cb(struct runtime_instr_cb *cb)
  62{
  63        asm volatile(".insn     rsy,0xeb0000000060,0,0,%0"      /* LRIC */
  64                : : "Q" (*cb));
  65}
  66
  67static inline void store_runtime_instr_cb(struct runtime_instr_cb *cb)
  68{
  69        asm volatile(".insn     rsy,0xeb0000000061,0,0,%0"      /* STRIC */
  70                : "=Q" (*cb) : : "cc");
  71}
  72
  73static inline void save_ri_cb(struct runtime_instr_cb *cb_prev)
  74{
  75        if (cb_prev)
  76                store_runtime_instr_cb(cb_prev);
  77}
  78
  79static inline void restore_ri_cb(struct runtime_instr_cb *cb_next,
  80                                 struct runtime_instr_cb *cb_prev)
  81{
  82        if (cb_next)
  83                load_runtime_instr_cb(cb_next);
  84        else if (cb_prev)
  85                load_runtime_instr_cb(&runtime_instr_empty_cb);
  86}
  87
  88void exit_thread_runtime_instr(void);
  89
  90#endif /* _RUNTIME_INSTR_H */
  91