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#ifdef CONFIG_64BIT
76	if (cb_prev)
77		store_runtime_instr_cb(cb_prev);
78#endif
79}
80
81static 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
93extern void exit_thread_runtime_instr(void);
94#else
95static inline void exit_thread_runtime_instr(void) { }
96#endif
97
98#endif /* _RUNTIME_INSTR_H */