PM / QoS: Add pm_qos_request tracepoints (ae8822b8) · Commits · 戴 / test

include/trace/events/power.h

+71 −0

Original line number	Original line	Diff line number	Diff line
	@@ -182,6 +182,77 @@ DEFINE_EVENT(power_domain, power_domain_target,
	/*		/*
	* The pm qos events are used for pm qos update		* The pm qos events are used for pm qos update
	*/		*/
			DECLARE_EVENT_CLASS(pm_qos_request,

			TP_PROTO(int pm_qos_class, s32 value),

			TP_ARGS(pm_qos_class, value),

			TP_STRUCT__entry(
			__field( int, pm_qos_class )
			__field( s32, value )
			),

			TP_fast_assign(
			__entry->pm_qos_class = pm_qos_class;
			__entry->value = value;
			),

			TP_printk("pm_qos_class=%s value=%d",
			__print_symbolic(__entry->pm_qos_class,
			{ PM_QOS_CPU_DMA_LATENCY, "CPU_DMA_LATENCY" },
			{ PM_QOS_NETWORK_LATENCY, "NETWORK_LATENCY" },
			{ PM_QOS_NETWORK_THROUGHPUT, "NETWORK_THROUGHPUT" }),
			__entry->value)
			);

			DEFINE_EVENT(pm_qos_request, pm_qos_add_request,

			TP_PROTO(int pm_qos_class, s32 value),

			TP_ARGS(pm_qos_class, value)
			);

			DEFINE_EVENT(pm_qos_request, pm_qos_update_request,

			TP_PROTO(int pm_qos_class, s32 value),

			TP_ARGS(pm_qos_class, value)
			);

			DEFINE_EVENT(pm_qos_request, pm_qos_remove_request,

			TP_PROTO(int pm_qos_class, s32 value),

			TP_ARGS(pm_qos_class, value)
			);

			TRACE_EVENT(pm_qos_update_request_timeout,

			TP_PROTO(int pm_qos_class, s32 value, unsigned long timeout_us),

			TP_ARGS(pm_qos_class, value, timeout_us),

			TP_STRUCT__entry(
			__field( int, pm_qos_class )
			__field( s32, value )
			__field( unsigned long, timeout_us )
			),

			TP_fast_assign(
			__entry->pm_qos_class = pm_qos_class;
			__entry->value = value;
			__entry->timeout_us = timeout_us;
			),

			TP_printk("pm_qos_class=%s value=%d, timeout_us=%ld",
			__print_symbolic(__entry->pm_qos_class,
			{ PM_QOS_CPU_DMA_LATENCY, "CPU_DMA_LATENCY" },
			{ PM_QOS_NETWORK_LATENCY, "NETWORK_LATENCY" },
			{ PM_QOS_NETWORK_THROUGHPUT, "NETWORK_THROUGHPUT" }),
			__entry->value, __entry->timeout_us)
			);

	DECLARE_EVENT_CLASS(pm_qos_update,		DECLARE_EVENT_CLASS(pm_qos_update,

	TP_PROTO(enum pm_qos_req_action action, int prev_value, int curr_value),		TP_PROTO(enum pm_qos_req_action action, int prev_value, int curr_value),

kernel/power/qos.c

+5 −0

Original line number	Original line	Diff line number	Diff line
	@@ -336,6 +336,7 @@ void pm_qos_add_request(struct pm_qos_request *req,
	}		}
	req->pm_qos_class = pm_qos_class;		req->pm_qos_class = pm_qos_class;
	INIT_DELAYED_WORK(&req->work, pm_qos_work_fn);		INIT_DELAYED_WORK(&req->work, pm_qos_work_fn);
			trace_pm_qos_add_request(pm_qos_class, value);
	pm_qos_update_target(pm_qos_array[pm_qos_class]->constraints,		pm_qos_update_target(pm_qos_array[pm_qos_class]->constraints,
	&req->node, PM_QOS_ADD_REQ, value);		&req->node, PM_QOS_ADD_REQ, value);
	}		}
	@@ -364,6 +365,7 @@ void pm_qos_update_request(struct pm_qos_request *req,

	cancel_delayed_work_sync(&req->work);		cancel_delayed_work_sync(&req->work);

			trace_pm_qos_update_request(req->pm_qos_class, new_value);
	if (new_value != req->node.prio)		if (new_value != req->node.prio)
	pm_qos_update_target(		pm_qos_update_target(
	pm_qos_array[req->pm_qos_class]->constraints,		pm_qos_array[req->pm_qos_class]->constraints,
	@@ -390,6 +392,8 @@ void pm_qos_update_request_timeout(struct pm_qos_request *req, s32 new_value,

	cancel_delayed_work_sync(&req->work);		cancel_delayed_work_sync(&req->work);

			trace_pm_qos_update_request_timeout(req->pm_qos_class,
			new_value, timeout_us);
	if (new_value != req->node.prio)		if (new_value != req->node.prio)
	pm_qos_update_target(		pm_qos_update_target(
	pm_qos_array[req->pm_qos_class]->constraints,		pm_qos_array[req->pm_qos_class]->constraints,
	@@ -419,6 +423,7 @@ void pm_qos_remove_request(struct pm_qos_request *req)

	cancel_delayed_work_sync(&req->work);		cancel_delayed_work_sync(&req->work);

			trace_pm_qos_remove_request(req->pm_qos_class, PM_QOS_DEFAULT_VALUE);
	pm_qos_update_target(pm_qos_array[req->pm_qos_class]->constraints,		pm_qos_update_target(pm_qos_array[req->pm_qos_class]->constraints,
	&req->node, PM_QOS_REMOVE_REQ,		&req->node, PM_QOS_REMOVE_REQ,
	PM_QOS_DEFAULT_VALUE);		PM_QOS_DEFAULT_VALUE);

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