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| author | Alex Elder <elder@linaro.org> | 2016-06-03 15:55:36 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2016-06-03 17:03:23 -0700 |
| commit | 4f9c5c0bbb9fb4715ca01cd28ba04a3117a9be6f (patch) | |
| tree | f17ad47a4c802f9aa0d56be4f4c5e372b5b561e3 /drivers/staging/greybus/greybus_trace.h | |
| parent | 6879dbf15e866565cde7591337c2fcca7440ab6f (diff) | |
| download | linux-4f9c5c0bbb9fb4715ca01cd28ba04a3117a9be6f.tar.bz2 | |
greybus: tracing: define bundle traces
Define a new gb_bundle trace point event class, used to trace events
associated with the bundle abstraction. Define four basic trace
points for this--creation time, drop of last reference, before
adding it to its interface and when removed when its interface
is destroyed.
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/staging/greybus/greybus_trace.h')
| -rw-r--r-- | drivers/staging/greybus/greybus_trace.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/staging/greybus/greybus_trace.h b/drivers/staging/greybus/greybus_trace.h index 80c428d9d1b1..a1dc07038f54 100644 --- a/drivers/staging/greybus/greybus_trace.h +++ b/drivers/staging/greybus/greybus_trace.h @@ -16,6 +16,7 @@ struct gb_message; struct gb_operation; +struct gb_bundle; struct gb_host_device; #define gb_bundle_name(message) \ @@ -161,6 +162,61 @@ DEFINE_OPERATION_EVENT(gb_operation_put_active); #undef DEFINE_OPERATION_EVENT +DECLARE_EVENT_CLASS(gb_bundle, + + TP_PROTO(struct gb_bundle *bundle), + + TP_ARGS(bundle), + + TP_STRUCT__entry( + __field(u8, intf_id) + __field(u8, id) + __field(u8, class) + __field(size_t, num_cports) + ), + + TP_fast_assign( + __entry->intf_id = bundle->intf->interface_id; + __entry->id = bundle->id; + __entry->class = bundle->class; + __entry->num_cports = bundle->num_cports; + ), + + TP_printk("intf_id=0x%02x id=%02x class=0x%02x num_cports=%zu", + __entry->intf_id, __entry->id, __entry->class, + __entry->num_cports) +); + +#define DEFINE_BUNDLE_EVENT(name) \ + DEFINE_EVENT(gb_bundle, name, \ + TP_PROTO(struct gb_bundle *bundle), \ + TP_ARGS(bundle)) + +/* + * Occurs after a new bundle is successfully created. + */ +DEFINE_BUNDLE_EVENT(gb_bundle_create); + +/* + * Occurs when the last reference to a bundle has been dropped, + * before its resources are freed. + */ +DEFINE_BUNDLE_EVENT(gb_bundle_release); + +/* + * Occurs when a bundle is added to an interface when the interface + * is enabled. + */ +DEFINE_BUNDLE_EVENT(gb_bundle_add); + +/* + * Occurs when a registered bundle gets destroyed, normally at the + * time an interface is disabled. + */ +DEFINE_BUNDLE_EVENT(gb_bundle_destroy); + +#undef DEFINE_BUNDLE_EVENT + DECLARE_EVENT_CLASS(gb_interface, TP_PROTO(struct gb_interface *intf), |