Merge remote-tracking branches 'regulator/topic/rk808', 'regulator/topic/rpm', 'regul...

[cascardo/linux.git] / arch / x86 / kernel / cpu / perf_event_intel_uncore.c

diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index 08f3fed..c635b8b 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -276,6 +276,17 @@ static struct intel_uncore_box *uncore_alloc_box(struct intel_uncore_type *type,
        return box;
 }
 
+/*
+ * Using uncore_pmu_event_init pmu event_init callback
+ * as a detection point for uncore events.
+ */
+static int uncore_pmu_event_init(struct perf_event *event);
+
+static bool is_uncore_event(struct perf_event *event)
+{
+       return event->pmu->event_init == uncore_pmu_event_init;
+}
+
 static int
 uncore_collect_events(struct intel_uncore_box *box, struct perf_event *leader, bool dogrp)
 {
@@ -290,13 +301,18 @@ uncore_collect_events(struct intel_uncore_box *box, struct perf_event *leader, b
                return -EINVAL;
 
        n = box->n_events;
-       box->event_list[n] = leader;
-       n++;
+
+       if (is_uncore_event(leader)) {
+               box->event_list[n] = leader;
+               n++;
+       }
+
        if (!dogrp)
                return n;
 
        list_for_each_entry(event, &leader->sibling_list, group_entry) {
-               if (event->state <= PERF_EVENT_STATE_OFF)
+               if (!is_uncore_event(event) ||
+                   event->state <= PERF_EVENT_STATE_OFF)
                        continue;
 
                if (n >= max_count)
@@ -824,7 +840,6 @@ static int uncore_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id
        box->phys_id = phys_id;
        box->pci_dev = pdev;
        box->pmu = pmu;
-       uncore_box_init(box);
        pci_set_drvdata(pdev, box);
 
        raw_spin_lock(&uncore_box_lock);
@@ -988,10 +1003,8 @@ static int uncore_cpu_starting(int cpu)
                        pmu = &type->pmus[j];
                        box = *per_cpu_ptr(pmu->box, cpu);
                        /* called by uncore_cpu_init? */
-                       if (box && box->phys_id >= 0) {
-                               uncore_box_init(box);
+                       if (box && box->phys_id >= 0)
                                continue;
-                       }
 
                        for_each_online_cpu(k) {
                                exist = *per_cpu_ptr(pmu->box, k);
@@ -1007,10 +1020,8 @@ static int uncore_cpu_starting(int cpu)
                                }
                        }
 
-                       if (box) {
+                       if (box)
                                box->phys_id = phys_id;
-                               uncore_box_init(box);
-                       }
                }
        }
        return 0;