arch/s390/include/asm/runtime_instr.h

   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
   7 struct 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
  59 extern struct runtime_instr_cb runtime_instr_empty_cb;
  60
  61 static 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
  67 static 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
  73 static inline void save_ri_cb(struct runtime_instr_cb *cb_prev)
  74 {
  75 #ifdef CONFIG_64BIT
  76         if (cb_prev)
  77                 store_runtime_instr_cb(cb_prev);
  78 #endif
  79 }
  80
  81 static inline void restore_ri_cb(struct runtime_instr_cb *cb_next,
  82                                  struct runtime_instr_cb *cb_prev)
  83 {
  84 #ifdef CONFIG_64BIT
  85         if (cb_next)
  86                 load_runtime_instr_cb(cb_next);
  87         else if (cb_prev)
  88                 load_runtime_instr_cb(&runtime_instr_empty_cb);
  89 #endif
  90 }
  91
  92 #ifdef CONFIG_64BIT
  93 extern void exit_thread_runtime_instr(void);
  94 #else
  95 static inline void exit_thread_runtime_instr(void) { }
  96 #endif
  97
  98 #endif /* _RUNTIME_INSTR_H */