Merge remote-tracking branch 'regulator/fix/qcom-spmi' into regulator-linus
[sfrench/cifs-2.6.git] / include / trace / perf.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2
3 #undef TRACE_SYSTEM_VAR
4
5 #ifdef CONFIG_PERF_EVENTS
6
7 #undef __entry
8 #define __entry entry
9
10 #undef __get_dynamic_array
11 #define __get_dynamic_array(field)      \
12                 ((void *)__entry + (__entry->__data_loc_##field & 0xffff))
13
14 #undef __get_dynamic_array_len
15 #define __get_dynamic_array_len(field)  \
16                 ((__entry->__data_loc_##field >> 16) & 0xffff)
17
18 #undef __get_str
19 #define __get_str(field) ((char *)__get_dynamic_array(field))
20
21 #undef __get_bitmask
22 #define __get_bitmask(field) (char *)__get_dynamic_array(field)
23
24 #undef __perf_count
25 #define __perf_count(c) (__count = (c))
26
27 #undef __perf_task
28 #define __perf_task(t)  (__task = (t))
29
30 #undef DECLARE_EVENT_CLASS
31 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)  \
32 static notrace void                                                     \
33 perf_trace_##call(void *__data, proto)                                  \
34 {                                                                       \
35         struct trace_event_call *event_call = __data;                   \
36         struct trace_event_data_offsets_##call __maybe_unused __data_offsets;\
37         struct trace_event_raw_##call *entry;                           \
38         struct bpf_prog *prog = event_call->prog;                       \
39         struct pt_regs *__regs;                                         \
40         u64 __count = 1;                                                \
41         struct task_struct *__task = NULL;                              \
42         struct hlist_head *head;                                        \
43         int __entry_size;                                               \
44         int __data_size;                                                \
45         int rctx;                                                       \
46                                                                         \
47         __data_size = trace_event_get_offsets_##call(&__data_offsets, args); \
48                                                                         \
49         head = this_cpu_ptr(event_call->perf_events);                   \
50         if (!prog && __builtin_constant_p(!__task) && !__task &&        \
51                                 hlist_empty(head))                      \
52                 return;                                                 \
53                                                                         \
54         __entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),\
55                              sizeof(u64));                              \
56         __entry_size -= sizeof(u32);                                    \
57                                                                         \
58         entry = perf_trace_buf_alloc(__entry_size, &__regs, &rctx);     \
59         if (!entry)                                                     \
60                 return;                                                 \
61                                                                         \
62         perf_fetch_caller_regs(__regs);                                 \
63                                                                         \
64         tstruct                                                         \
65                                                                         \
66         { assign; }                                                     \
67                                                                         \
68         perf_trace_run_bpf_submit(entry, __entry_size, rctx,            \
69                                   event_call, __count, __regs,          \
70                                   head, __task);                        \
71 }
72
73 /*
74  * This part is compiled out, it is only here as a build time check
75  * to make sure that if the tracepoint handling changes, the
76  * perf probe will fail to compile unless it too is updated.
77  */
78 #undef DEFINE_EVENT
79 #define DEFINE_EVENT(template, call, proto, args)                       \
80 static inline void perf_test_probe_##call(void)                         \
81 {                                                                       \
82         check_trace_callback_type_##call(perf_trace_##template);        \
83 }
84
85
86 #undef DEFINE_EVENT_PRINT
87 #define DEFINE_EVENT_PRINT(template, name, proto, args, print)  \
88         DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
89
90 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
91 #endif /* CONFIG_PERF_EVENTS */