perf, x86: Move x86_setup_perfctr()

Move x86_setup_perfctr(), no other changes made.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1271190201-25705-3-git-send-email-robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 801441a5424521a66f05ea8744102784c5e01888..3d3bceb9e830efd3b9b8962915d19e5539a21cf5 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -426,7 +426,65 @@ set_ext_hw_attr(struct hw_perf_event *hwc, struct perf_event_attr *attr)
        return 0;
 }
 
-static int x86_setup_perfctr(struct perf_event *event);
+static int x86_setup_perfctr(struct perf_event *event)
+{
+       struct perf_event_attr *attr = &event->attr;
+       struct hw_perf_event *hwc = &event->hw;
+       u64 config;
+
+       if (!hwc->sample_period) {
+               hwc->sample_period = x86_pmu.max_period;
+               hwc->last_period = hwc->sample_period;
+               atomic64_set(&hwc->period_left, hwc->sample_period);
+       } else {
+               /*
+                * If we have a PMU initialized but no APIC
+                * interrupts, we cannot sample hardware
+                * events (user-space has to fall back and
+                * sample via a hrtimer based software event):
+                */
+               if (!x86_pmu.apic)
+                       return -EOPNOTSUPP;
+       }
+
+       if (attr->type == PERF_TYPE_RAW)
+               return 0;
+
+       if (attr->type == PERF_TYPE_HW_CACHE)
+               return set_ext_hw_attr(hwc, attr);
+
+       if (attr->config >= x86_pmu.max_events)
+               return -EINVAL;
+
+       /*
+        * The generic map:
+        */
+       config = x86_pmu.event_map(attr->config);
+
+       if (config == 0)
+               return -ENOENT;
+
+       if (config == -1LL)
+               return -EINVAL;
+
+       /*
+        * Branch tracing:
+        */
+       if ((attr->config == PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
+           (hwc->sample_period == 1)) {
+               /* BTS is not supported by this architecture. */
+               if (!x86_pmu.bts)
+                       return -EOPNOTSUPP;
+
+               /* BTS is currently only allowed for user-mode. */
+               if (!attr->exclude_kernel)
+                       return -EOPNOTSUPP;
+       }
+
+       hwc->config |= config;
+
+       return 0;
+}
 
 static int x86_pmu_hw_config(struct perf_event *event)
 {
@@ -493,66 +551,6 @@ static int __hw_perf_event_init(struct perf_event *event)
        return x86_setup_perfctr(event);
 }
 
-static int x86_setup_perfctr(struct perf_event *event)
-{
-       struct perf_event_attr *attr = &event->attr;
-       struct hw_perf_event *hwc = &event->hw;
-       u64 config;
-
-       if (!hwc->sample_period) {
-               hwc->sample_period = x86_pmu.max_period;
-               hwc->last_period = hwc->sample_period;
-               atomic64_set(&hwc->period_left, hwc->sample_period);
-       } else {
-               /*
-                * If we have a PMU initialized but no APIC
-                * interrupts, we cannot sample hardware
-                * events (user-space has to fall back and
-                * sample via a hrtimer based software event):
-                */
-               if (!x86_pmu.apic)
-                       return -EOPNOTSUPP;
-       }
-
-       if (attr->type == PERF_TYPE_RAW)
-               return 0;
-
-       if (attr->type == PERF_TYPE_HW_CACHE)
-               return set_ext_hw_attr(hwc, attr);
-
-       if (attr->config >= x86_pmu.max_events)
-               return -EINVAL;
-
-       /*
-        * The generic map:
-        */
-       config = x86_pmu.event_map(attr->config);
-
-       if (config == 0)
-               return -ENOENT;
-
-       if (config == -1LL)
-               return -EINVAL;
-
-       /*
-        * Branch tracing:
-        */
-       if ((attr->config == PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
-           (hwc->sample_period == 1)) {
-               /* BTS is not supported by this architecture. */
-               if (!x86_pmu.bts)
-                       return -EOPNOTSUPP;
-
-               /* BTS is currently only allowed for user-mode. */
-               if (!attr->exclude_kernel)
-                       return -EOPNOTSUPP;
-       }
-
-       hwc->config |= config;
-
-       return 0;
-}
-
 static void x86_pmu_disable_all(void)
 {
        struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);