diff options
Diffstat (limited to 'drivers/interconnect')
| -rw-r--r-- | drivers/interconnect/Makefile | 1 | ||||
| -rw-r--r-- | drivers/interconnect/core.c | 7 | ||||
| -rw-r--r-- | drivers/interconnect/trace.h | 88 |
3 files changed, 96 insertions, 0 deletions
diff --git a/drivers/interconnect/Makefile b/drivers/interconnect/Makefile index 28f2ab0824d5..725029ae7a2c 100644 --- a/drivers/interconnect/Makefile +++ b/drivers/interconnect/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 +CFLAGS_core.o := -I$(src) icc-core-objs := core.o obj-$(CONFIG_INTERCONNECT) += icc-core.o diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index 4f9bdb7f9165..fbec2e4fdfeb 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -21,6 +21,9 @@ #include "internal.h" +#define CREATE_TRACE_POINTS +#include "trace.h" + static DEFINE_IDR(icc_idr); static LIST_HEAD(icc_providers); static DEFINE_MUTEX(icc_lock); @@ -435,6 +438,8 @@ int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw) /* aggregate requests for this node */ aggregate_requests(node); + + trace_icc_set_bw(path, node, i, avg_bw, peak_bw); } ret = apply_constraints(path); @@ -453,6 +458,8 @@ int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw) mutex_unlock(&icc_lock); + trace_icc_set_bw_end(path, ret); + return ret; } EXPORT_SYMBOL_GPL(icc_set_bw); diff --git a/drivers/interconnect/trace.h b/drivers/interconnect/trace.h new file mode 100644 index 000000000000..3d668ff566bf --- /dev/null +++ b/drivers/interconnect/trace.h @@ -0,0 +1,88 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Interconnect framework tracepoints + * Copyright (c) 2019, Linaro Ltd. + * Author: Georgi Djakov <georgi.djakov@linaro.org> + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM interconnect + +#if !defined(_TRACE_INTERCONNECT_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_INTERCONNECT_H + +#include <linux/interconnect.h> +#include <linux/tracepoint.h> + +TRACE_EVENT(icc_set_bw, + + TP_PROTO(struct icc_path *p, struct icc_node *n, int i, + u32 avg_bw, u32 peak_bw), + + TP_ARGS(p, n, i, avg_bw, peak_bw), + + TP_STRUCT__entry( + __string(path_name, p->name) + __string(dev, dev_name(p->reqs[i].dev)) + __string(node_name, n->name) + __field(u32, avg_bw) + __field(u32, peak_bw) + __field(u32, node_avg_bw) + __field(u32, node_peak_bw) + ), + + TP_fast_assign( + __assign_str(path_name, p->name); + __assign_str(dev, dev_name(p->reqs[i].dev)); + __assign_str(node_name, n->name); + __entry->avg_bw = avg_bw; + __entry->peak_bw = peak_bw; + __entry->node_avg_bw = n->avg_bw; + __entry->node_peak_bw = n->peak_bw; + ), + + TP_printk("path=%s dev=%s node=%s avg_bw=%u peak_bw=%u agg_avg=%u agg_peak=%u", + __get_str(path_name), + __get_str(dev), + __get_str(node_name), + __entry->avg_bw, + __entry->peak_bw, + __entry->node_avg_bw, + __entry->node_peak_bw) +); + +TRACE_EVENT(icc_set_bw_end, + + TP_PROTO(struct icc_path *p, int ret), + + TP_ARGS(p, ret), + + TP_STRUCT__entry( + __string(path_name, p->name) + __string(dev, dev_name(p->reqs[0].dev)) + __field(int, ret) + ), + + TP_fast_assign( + __assign_str(path_name, p->name); + __assign_str(dev, dev_name(p->reqs[0].dev)); + __entry->ret = ret; + ), + + TP_printk("path=%s dev=%s ret=%d", + __get_str(path_name), + __get_str(dev), + __entry->ret) +); + +#endif /* _TRACE_INTERCONNECT_H */ + +/* This part must be outside protection */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . + +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE trace + +#include <trace/define_trace.h> |