diff options
Diffstat (limited to 'kernel/trace/trace_output.c')
| -rw-r--r-- | kernel/trace/trace_output.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index 0bb9cf2d53e6..d67a562df259 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -1098,6 +1098,57 @@ static struct trace_event trace_user_stack_event = { .funcs = &trace_user_stack_funcs, }; +/* TRACE_HWLAT */ +static enum print_line_t +trace_hwlat_print(struct trace_iterator *iter, int flags, + struct trace_event *event) +{ + struct trace_entry *entry = iter->ent; + struct trace_seq *s = &iter->seq; + struct hwlat_entry *field; + + trace_assign_type(field, entry); + + trace_seq_printf(s, "#%-5u inner/outer(us): %4llu/%-5llu ts:%ld.%09ld\n", + field->seqnum, + field->duration, + field->outer_duration, + field->timestamp.tv_sec, + field->timestamp.tv_nsec); + + return trace_handle_return(s); +} + + +static enum print_line_t +trace_hwlat_raw(struct trace_iterator *iter, int flags, + struct trace_event *event) +{ + struct hwlat_entry *field; + struct trace_seq *s = &iter->seq; + + trace_assign_type(field, iter->ent); + + trace_seq_printf(s, "%llu %lld %ld %09ld %u\n", + field->duration, + field->outer_duration, + field->timestamp.tv_sec, + field->timestamp.tv_nsec, + field->seqnum); + + return trace_handle_return(s); +} + +static struct trace_event_functions trace_hwlat_funcs = { + .trace = trace_hwlat_print, + .raw = trace_hwlat_raw, +}; + +static struct trace_event trace_hwlat_event = { + .type = TRACE_HWLAT, + .funcs = &trace_hwlat_funcs, +}; + /* TRACE_BPUTS */ static enum print_line_t trace_bputs_print(struct trace_iterator *iter, int flags, @@ -1233,6 +1284,7 @@ static struct trace_event *events[] __initdata = { &trace_bputs_event, &trace_bprint_event, &trace_print_event, + &trace_hwlat_event, NULL }; |