diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c
index 7fb55dafb639..17cafa1a7f18 100644
--- a/drivers/hwtracing/coresight/coresight-etm-perf.c
+++ b/drivers/hwtracing/coresight/coresight-etm-perf.c
@@ -232,15 +232,14 @@ static void free_event_data(struct work_struct *work)
 		if (!(IS_ERR_OR_NULL(*ppath))) {
 			struct coresight_device *sink = coresight_get_sink(*ppath);
 
-			coresight_trace_id_put_cpu_id_map(cpu, &sink->perf_sink_id_map);
+			/* mark perf event as done for trace id allocator */
+			coresight_trace_id_perf_stop(&sink->perf_sink_id_map);
+
 			coresight_release_path(*ppath);
 		}
 		*ppath = NULL;
 	}
 
-	/* mark perf event as done for trace id allocator */
-	coresight_trace_id_perf_stop();
-
 	free_percpu(event_data->path);
 	kfree(event_data);
 }
@@ -328,9 +327,6 @@ static void *etm_setup_aux(struct perf_event *event, void **pages,
 		sink = user_sink = coresight_get_sink_by_id(id);
 	}
 
-	/* tell the trace ID allocator that a perf event is starting up */
-	coresight_trace_id_perf_start();
-
 	/* check if user wants a coresight configuration selected */
 	cfg_hash = (u32)((event->attr.config2 & GENMASK_ULL(63, 32)) >> 32);
 	if (cfg_hash) {
@@ -404,6 +400,7 @@ static void *etm_setup_aux(struct perf_event *event, void **pages,
 		}
 
 		/* ensure we can allocate a trace ID for this CPU */
+		coresight_trace_id_perf_start(&sink->perf_sink_id_map);
 		trace_id = coresight_trace_id_get_cpu_id_map(cpu, &sink->perf_sink_id_map);
 		if (!IS_VALID_CS_TRACE_ID(trace_id)) {
 			cpumask_clear_cpu(cpu, mask);
diff --git a/drivers/hwtracing/coresight/coresight-trace-id.c b/drivers/hwtracing/coresight/coresight-trace-id.c
index 8a777c0af6ea..acb99ccf96b5 100644
--- a/drivers/hwtracing/coresight/coresight-trace-id.c
+++ b/drivers/hwtracing/coresight/coresight-trace-id.c
@@ -18,12 +18,6 @@ static struct coresight_trace_id_map id_map_default = {
 	.cpu_map = &id_map_default_cpu_ids
 };
 
-/* maintain a record of the pending releases per cpu */
-static cpumask_t cpu_id_release_pending;
-
-/* perf session active counter */
-static atomic_t perf_cs_etm_session_active = ATOMIC_INIT(0);
-
 /* lock to protect id_map and cpu data  */
 static DEFINE_SPINLOCK(id_map_lock);
 
@@ -122,34 +116,18 @@ static void coresight_trace_id_free(int id, struct coresight_trace_id_map *id_ma
 	clear_bit(id, id_map->used_ids);
 }
 
-static void coresight_trace_id_set_pend_rel(int id, struct coresight_trace_id_map *id_map)
-{
-	if (WARN(!IS_VALID_CS_TRACE_ID(id), "Invalid Trace ID %d\n", id))
-		return;
-	set_bit(id, id_map->pend_rel_ids);
-}
-
 /*
- * release all pending IDs for all current maps & clear CPU associations
- *
- * This currently operates on the default id map, but may be extended to
- * operate on all registered id maps if per sink id maps are used.
+ * release all IDs and clear CPU associations
  */
-static void coresight_trace_id_release_all_pending(void)
+static void coresight_trace_id_release_all(struct coresight_trace_id_map *id_map)
 {
-	struct coresight_trace_id_map *id_map = &id_map_default;
 	unsigned long flags;
-	int cpu, bit;
+	int cpu;
 
 	spin_lock_irqsave(&id_map_lock, flags);
-	for_each_set_bit(bit, id_map->pend_rel_ids, CORESIGHT_TRACE_ID_RES_TOP) {
-		clear_bit(bit, id_map->used_ids);
-		clear_bit(bit, id_map->pend_rel_ids);
-	}
-	for_each_cpu(cpu, &cpu_id_release_pending) {
-		atomic_set(per_cpu_ptr(id_map_default.cpu_map, cpu), 0);
-		cpumask_clear_cpu(cpu, &cpu_id_release_pending);
-	}
+	bitmap_zero(id_map->used_ids, CORESIGHT_TRACE_IDS_MAX);
+	for_each_possible_cpu(cpu)
+		atomic_set(per_cpu_ptr(id_map->cpu_map, cpu), 0);
 	spin_unlock_irqrestore(&id_map_lock, flags);
 	DUMP_ID_MAP(id_map);
 }
@@ -164,7 +142,7 @@ static int _coresight_trace_id_get_cpu_id(int cpu, struct coresight_trace_id_map
 	/* check for existing allocation for this CPU */
 	id = _coresight_trace_id_read_cpu_id(cpu, id_map);
 	if (id)
-		goto get_cpu_id_clr_pend;
+		goto get_cpu_id_out_unlock;
 
 	/*
 	 * Find a new ID.
@@ -185,11 +163,6 @@ static int _coresight_trace_id_get_cpu_id(int cpu, struct coresight_trace_id_map
 	/* allocate the new id to the cpu */
 	atomic_set(per_cpu_ptr(id_map->cpu_map, cpu), id);
 
-get_cpu_id_clr_pend:
-	/* we are (re)using this ID - so ensure it is not marked for release */
-	cpumask_clear_cpu(cpu, &cpu_id_release_pending);
-	clear_bit(id, id_map->pend_rel_ids);
-
 get_cpu_id_out_unlock:
 	spin_unlock_irqrestore(&id_map_lock, flags);
 
@@ -210,15 +183,8 @@ static void _coresight_trace_id_put_cpu_id(int cpu, struct coresight_trace_id_ma
 
 	spin_lock_irqsave(&id_map_lock, flags);
 
-	if (atomic_read(&perf_cs_etm_session_active)) {
-		/* set release at pending if perf still active */
-		coresight_trace_id_set_pend_rel(id, id_map);
-		cpumask_set_cpu(cpu, &cpu_id_release_pending);
-	} else {
-		/* otherwise clear id */
-		coresight_trace_id_free(id, id_map);
-		atomic_set(per_cpu_ptr(id_map->cpu_map, cpu), 0);
-	}
+	coresight_trace_id_free(id, id_map);
+	atomic_set(per_cpu_ptr(id_map->cpu_map, cpu), 0);
 
 	spin_unlock_irqrestore(&id_map_lock, flags);
 	DUMP_ID_CPU(cpu, id);
@@ -302,17 +268,17 @@ void coresight_trace_id_put_system_id(int id)
 }
 EXPORT_SYMBOL_GPL(coresight_trace_id_put_system_id);
 
-void coresight_trace_id_perf_start(void)
+void coresight_trace_id_perf_start(struct coresight_trace_id_map *id_map)
 {
-	atomic_inc(&perf_cs_etm_session_active);
+	atomic_inc(&id_map->perf_cs_etm_session_active);
 	PERF_SESSION(atomic_read(&perf_cs_etm_session_active));
 }
 EXPORT_SYMBOL_GPL(coresight_trace_id_perf_start);
 
-void coresight_trace_id_perf_stop(void)
+void coresight_trace_id_perf_stop(struct coresight_trace_id_map *id_map)
 {
-	if (!atomic_dec_return(&perf_cs_etm_session_active))
-		coresight_trace_id_release_all_pending();
+	if (!atomic_dec_return(&id_map->perf_cs_etm_session_active))
+		coresight_trace_id_release_all(id_map);
 	PERF_SESSION(atomic_read(&perf_cs_etm_session_active));
 }
 EXPORT_SYMBOL_GPL(coresight_trace_id_perf_stop);
diff --git a/drivers/hwtracing/coresight/coresight-trace-id.h b/drivers/hwtracing/coresight/coresight-trace-id.h
index 840babdd0794..9aae50a553ca 100644
--- a/drivers/hwtracing/coresight/coresight-trace-id.h
+++ b/drivers/hwtracing/coresight/coresight-trace-id.h
@@ -17,9 +17,10 @@
  * released when done.
  *
  * In order to ensure that a consistent cpu / ID matching is maintained
- * throughout a perf cs_etm event session - a session in progress flag will
- * be maintained, and released IDs not cleared until the perf session is
- * complete. This allows the same CPU to be re-allocated its prior ID.
+ * throughout a perf cs_etm event session - a session in progress flag will be
+ * maintained for each sink, and IDs are cleared when all the perf sessions
+ * complete. This allows the same CPU to be re-allocated its prior ID when
+ * events are scheduled in and out.
  *
  *
  * Trace ID maps will be created and initialised to prevent architecturally
@@ -66,11 +67,7 @@ int coresight_trace_id_get_cpu_id_map(int cpu, struct coresight_trace_id_map *id
 /**
  * Release an allocated trace ID associated with the CPU.
  *
- * This will release the CoreSight trace ID associated with the CPU,
- * unless a perf session is in operation.
- *
- * If a perf session is in operation then the ID will be marked as pending
- * release.
+ * This will release the CoreSight trace ID associated with the CPU.
  *
  * @cpu: The CPU index to release the associated trace ID.
  */
@@ -133,21 +130,21 @@ void coresight_trace_id_put_system_id(int id);
 /**
  * Notify the Trace ID allocator that a perf session is starting.
  *
- * Increase the perf session reference count - called by perf when setting up
- * a trace event.
+ * Increase the perf session reference count - called by perf when setting up a
+ * trace event.
  *
- * This reference count is used by the ID allocator to ensure that trace IDs
- * associated with a CPU cannot change or be released during a perf session.
+ * Perf sessions never free trace IDs to ensure that the ID associated with a
+ * CPU cannot change during their and other's concurrent sessions. Instead,
+ * this refcount is used so that the last event to finish always frees all IDs.
  */
-void coresight_trace_id_perf_start(void);
+void coresight_trace_id_perf_start(struct coresight_trace_id_map *id_map);
 
 /**
  * Notify the ID allocator that a perf session is stopping.
  *
- * Decrease the perf session reference count.
- * if this causes the count to go to zero, then all Trace IDs marked as pending
- * release, will be released.
+ * Decrease the perf session reference count. If this causes the count to go to
+ * zero, then all Trace IDs will be released.
  */
-void coresight_trace_id_perf_stop(void);
+void coresight_trace_id_perf_stop(struct coresight_trace_id_map *id_map);
 
 #endif /* _CORESIGHT_TRACE_ID_H */
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index 9c3067e2e38b..197949fd2c35 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -227,14 +227,12 @@ struct coresight_sysfs_link {
  * @used_ids:	Bitmap to register available (bit = 0) and in use (bit = 1) IDs.
  *		Initialised so that the reserved IDs are permanently marked as
  *		in use.
- * @pend_rel_ids: CPU IDs that have been released by the trace source but not
- *		  yet marked as available, to allow re-allocation to the same
- *		  CPU during a perf session.
+ * @perf_cs_etm_session_active: Number of Perf sessions using this ID map.
  */
 struct coresight_trace_id_map {
 	DECLARE_BITMAP(used_ids, CORESIGHT_TRACE_IDS_MAX);
-	DECLARE_BITMAP(pend_rel_ids, CORESIGHT_TRACE_IDS_MAX);
 	atomic_t __percpu *cpu_map;
+	atomic_t perf_cs_etm_session_active;
 };
 
 /**
