perf: add arch-dependent counter_mask_check function

A later version would probably want to check some mask for arm64...

Change-Id: I67e13a852c3ed406fbf8ae1688539b9e069c0e81
Fujitsu: POSTK_DEBUG_ARCH_DEP_87

arch/arm64/kernel/perfctr.c

@@ -184,6 +184,11 @@ int ihk_mc_perfctr_fixed_init(int counter, int mode)
 	return -1;
 }
 
+int ihk_mc_perf_counter_mask_check(unsigned long counter_mask)
+{
+	return 1;
+}
+
 int ihk_mc_perf_get_num_counters(void)
 {
 	return cpu_pmu.per_cpu[ihk_mc_get_processor_id()].num_events;

arch/x86_64/kernel/perfctr.c

@@ -499,6 +499,15 @@ int ihk_mc_perfctr_alloc_counter(unsigned int *type, unsigned long *config, unsi
 	return ret;
 }
 
+int ihk_mc_perf_counter_mask_check(unsigned long counter_mask)
+{
+	if ((counter_mask & PERF_COUNTERS_MASK) |
+	    (counter_mask & FIXED_PERF_COUNTERS_MASK)) {
+		return 1;
+	}
+	return 0;
+}
+
 int ihk_mc_perf_get_num_counters(void)
 {
 	return NUM_PERF_COUNTERS;