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| author | Georgi Djakov <georgi.djakov@linaro.org> | 2019-10-31 12:27:19 +0200 |
|---|---|---|
| committer | Georgi Djakov <georgi.djakov@linaro.org> | 2019-11-18 17:35:48 +0200 |
| commit | c329035b069fe872da3c94b6f9f287aef3c394c3 (patch) | |
| tree | 2e76737e55120ecb2e1934a3c57544138234d1f3 | |
| parent | ed0a34732cff3ca9f86629726b2363a051d8ffe5 (diff) | |
interconnect: Add tracepoint in the beginning of icc_set_bw()
This would be helpful when we do profiling and optimizations.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
| -rw-r--r-- | drivers/interconnect/core.c | 2 | ||||
| -rw-r--r-- | include/trace/events/interconnect.h | 21 |
2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index ad9a3a8bef0f..acc90c74668d 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -424,6 +424,8 @@ int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw) if (!path || !path->num_nodes) return 0; + trace_icc_set_bw_begin(path); + mutex_lock(&icc_lock); old_avg = path->reqs[0].avg_bw; diff --git a/include/trace/events/interconnect.h b/include/trace/events/interconnect.h index 64b646aa7bd3..16321921101c 100644 --- a/include/trace/events/interconnect.h +++ b/include/trace/events/interconnect.h @@ -51,6 +51,27 @@ TRACE_EVENT(icc_set_bw, __entry->node_peak_bw) ); +TRACE_EVENT(icc_set_bw_begin, + + TP_PROTO(struct icc_path *p), + + TP_ARGS(p), + + TP_STRUCT__entry( + __string(path_name, p->name) + __string(dev, dev_name(p->reqs[0].dev)) + ), + + TP_fast_assign( + __assign_str(path_name, p->name); + __assign_str(dev, dev_name(p->reqs[0].dev)); + ), + + TP_printk("path=%s dev=%s", + __get_str(path_name), + __get_str(dev)) +); + TRACE_EVENT(icc_set_bw_end, TP_PROTO(struct icc_path *p, int ret), |