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Date: Tue, 13 Apr 2010 22:23:11 +0200
From: Robert Richter <robert.richter@....com>
To: Peter Zijlstra <a.p.zijlstra@...llo.nl>
CC: Ingo Molnar <mingo@...e.hu>, Stephane Eranian <eranian@...gle.com>,
LKML <linux-kernel@...r.kernel.org>,
Robert Richter <robert.richter@....com>
Subject: [PATCH 02/12] perf, x86: moving x86_setup_perfctr()
Moving x86_setup_perfctr(), no other changes made.
Signed-off-by: Robert Richter <robert.richter@....com>
---
arch/x86/kernel/cpu/perf_event.c | 120 +++++++++++++++++++-------------------
1 files changed, 59 insertions(+), 61 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index d275277..84b6107 100644
--- 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);
--
1.7.0.3
--
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