2 files changed, 5 insertions, 4 deletions

diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h
index d99f9b37cd15..82588f3ba77f 100644
--- a/arch/arc/include/asm/processor.h
+++ b/arch/arc/include/asm/processor.h
@@ -62,6 +62,8 @@ unsigned long thread_saved_pc(struct task_struct *t);
 #define cpu_relax()     do { } while (0)
 #endif
 
+#define cpu_relax_lowlatency() cpu_relax()
+
 #define copy_segments(tsk, mm)      do { } while (0)
 #define release_segments(mm)        do { } while (0)
 
diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c
index 63177e4cb66d..b9a5685a990e 100644
--- a/arch/arc/kernel/perf_event.c
+++ b/arch/arc/kernel/perf_event.c
@@ -99,10 +99,6 @@ static int arc_pmu_event_init(struct perf_event *event)
         struct hw_perf_event *hwc = &event->hw;
         int ret;
 
-        /* ARC 700 PMU does not support sampling events */
-        if (is_sampling_event(event))
-                return -ENOENT;
-
         switch (event->attr.type) {
         case PERF_TYPE_HARDWARE:
                 if (event->attr.config >= PERF_COUNT_HW_MAX)
@@ -298,6 +294,9 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
                 .read           = arc_pmu_read,
         };
 
+        /* ARC 700 PMU does not support sampling events */
+        arc_pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT;
+
         ret = perf_pmu_register(&arc_pmu->pmu, pdev->name, PERF_TYPE_RAW);
 
         return ret;