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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _RUNTIME_INSTR_H
   3#define _RUNTIME_INSTR_H
   4
   5#define S390_RUNTIME_INSTR_START        0x1
   6#define S390_RUNTIME_INSTR_STOP         0x2
   7
   8struct runtime_instr_cb {
   9        __u64 buf_current;
  10        __u64 buf_origin;
  11        __u64 buf_limit;
  12
  13        __u32 valid             : 1;
  14        __u32 pstate            : 1;
  15        __u32 pstate_set_buf    : 1;
  16        __u32 home_space        : 1;
  17        __u32 altered           : 1;
  18        __u32                   : 3;
  19        __u32 pstate_sample     : 1;
  20        __u32 sstate_sample     : 1;
  21        __u32 pstate_collect    : 1;
  22        __u32 sstate_collect    : 1;
  23        __u32                   : 1;
  24        __u32 halted_int        : 1;
  25        __u32 int_requested     : 1;
  26        __u32 buffer_full_int   : 1;
  27        __u32 key               : 4;
  28        __u32                   : 9;
  29        __u32 rgs               : 3;
  30
  31        __u32 mode              : 4;
  32        __u32 next              : 1;
  33        __u32 mae               : 1;
  34        __u32                   : 2;
  35        __u32 call_type_br      : 1;
  36        __u32 return_type_br    : 1;
  37        __u32 other_type_br     : 1;
  38        __u32 bc_other_type     : 1;
  39        __u32 emit              : 1;
  40        __u32 tx_abort          : 1;
  41        __u32                   : 2;
  42        __u32 bp_xn             : 1;
  43        __u32 bp_xt             : 1;
  44        __u32 bp_ti             : 1;
  45        __u32 bp_ni             : 1;
  46        __u32 suppr_y           : 1;
  47        __u32 suppr_z           : 1;
  48
  49        __u32 dc_miss_extra     : 1;
  50        __u32 lat_lev_ignore    : 1;
  51        __u32 ic_lat_lev        : 4;
  52        __u32 dc_lat_lev        : 4;
  53
  54        __u64 reserved1;
  55        __u64 scaling_factor;
  56        __u64 rsic;
  57        __u64 reserved2;
  58} __packed __aligned(8);
  59
  60extern struct runtime_instr_cb runtime_instr_empty_cb;
  61
  62static inline void load_runtime_instr_cb(struct runtime_instr_cb *cb)
  63{
  64        asm volatile(".insn     rsy,0xeb0000000060,0,0,%0"      /* LRIC */
  65                : : "Q" (*cb));
  66}
  67
  68static inline void store_runtime_instr_cb(struct runtime_instr_cb *cb)
  69{
  70        asm volatile(".insn     rsy,0xeb0000000061,0,0,%0"      /* STRIC */
  71                : "=Q" (*cb) : : "cc");
  72}
  73
  74static inline void save_ri_cb(struct runtime_instr_cb *cb_prev)
  75{
  76        if (cb_prev)
  77                store_runtime_instr_cb(cb_prev);
  78}
  79
  80static inline void restore_ri_cb(struct runtime_instr_cb *cb_next,
  81                                 struct runtime_instr_cb *cb_prev)
  82{
  83        if (cb_next)
  84                load_runtime_instr_cb(cb_next);
  85        else if (cb_prev)
  86                load_runtime_instr_cb(&runtime_instr_empty_cb);
  87}
  88
  89void exit_thread_runtime_instr(void);
  90
  91#endif /* _RUNTIME_INSTR_H */
  92