Merge branch 'stable-3.2' into pandora-3.2

[pandora-kernel.git] / arch / arm / kernel / perf_event_xscale.c

diff --git a/arch/arm/kernel/perf_event_xscale.c b/arch/arm/kernel/perf_event_xscale.c
index e0cca10..9fc2c95 100644 (file)
--- a/arch/arm/kernel/perf_event_xscale.c
+++ b/arch/arm/kernel/perf_event_xscale.c
@@ -253,11 +253,14 @@ xscale1pmu_handle_irq(int irq_num, void *dev)
                struct perf_event *event = cpuc->events[idx];
                struct hw_perf_event *hwc;
 
+               if (!event)
+                       continue;
+
                if (!xscale1_pmnc_counter_has_overflowed(pmnc, idx))
                        continue;
 
                hwc = &event->hw;
-               armpmu_event_update(event, hwc, idx, 1);
+               armpmu_event_update(event, hwc, idx);
                data.period = event->hw.last_period;
                if (!armpmu_event_set_period(event, hwc, idx))
                        continue;
@@ -590,11 +593,14 @@ xscale2pmu_handle_irq(int irq_num, void *dev)
                struct perf_event *event = cpuc->events[idx];
                struct hw_perf_event *hwc;
 
-               if (!xscale2_pmnc_counter_has_overflowed(pmnc, idx))
+               if (!event)
+                       continue;
+
+               if (!xscale2_pmnc_counter_has_overflowed(of_flags, idx))
                        continue;
 
                hwc = &event->hw;
-               armpmu_event_update(event, hwc, idx, 1);
+               armpmu_event_update(event, hwc, idx);
                data.period = event->hw.last_period;
                if (!armpmu_event_set_period(event, hwc, idx))
                        continue;
@@ -661,7 +667,7 @@ xscale2pmu_enable_event(struct hw_perf_event *hwc, int idx)
 static void
 xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
 {
-       unsigned long flags, ien, evtsel;
+       unsigned long flags, ien, evtsel, of_flags;
        struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
        ien = xscale2pmu_read_int_enable();
@@ -670,26 +676,31 @@ xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
        switch (idx) {
        case XSCALE_CYCLE_COUNTER:
                ien &= ~XSCALE2_CCOUNT_INT_EN;
+               of_flags = XSCALE2_CCOUNT_OVERFLOW;
                break;
        case XSCALE_COUNTER0:
                ien &= ~XSCALE2_COUNT0_INT_EN;
                evtsel &= ~XSCALE2_COUNT0_EVT_MASK;
                evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT0_EVT_SHFT;
+               of_flags = XSCALE2_COUNT0_OVERFLOW;
                break;
        case XSCALE_COUNTER1:
                ien &= ~XSCALE2_COUNT1_INT_EN;
                evtsel &= ~XSCALE2_COUNT1_EVT_MASK;
                evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT1_EVT_SHFT;
+               of_flags = XSCALE2_COUNT1_OVERFLOW;
                break;
        case XSCALE_COUNTER2:
                ien &= ~XSCALE2_COUNT2_INT_EN;
                evtsel &= ~XSCALE2_COUNT2_EVT_MASK;
                evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT2_EVT_SHFT;
+               of_flags = XSCALE2_COUNT2_OVERFLOW;
                break;
        case XSCALE_COUNTER3:
                ien &= ~XSCALE2_COUNT3_INT_EN;
                evtsel &= ~XSCALE2_COUNT3_EVT_MASK;
                evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT3_EVT_SHFT;
+               of_flags = XSCALE2_COUNT3_OVERFLOW;
                break;
        default:
                WARN_ONCE(1, "invalid counter number (%d)\n", idx);
@@ -699,6 +710,7 @@ xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
        raw_spin_lock_irqsave(&events->pmu_lock, flags);
        xscale2pmu_write_event_select(evtsel);
        xscale2pmu_write_int_enable(ien);
+       xscale2pmu_write_overflow_flags(of_flags);
        raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }