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
load_runtime_instr_cb(struct runtime_instr_cb * cb)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
store_runtime_instr_cb(struct runtime_instr_cb * cb)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
save_ri_cb(struct runtime_instr_cb * cb_prev)73 static 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
restore_ri_cb(struct runtime_instr_cb * cb_next,struct runtime_instr_cb * cb_prev)79 static 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
88 struct task_struct;
89
90 void runtime_instr_release(struct task_struct *tsk);
91
92 #endif /* _RUNTIME_INSTR_H */
93