[Intel-gfx] [RFC 1/2] drm/i915/pmu: reorder function to suite next patch

[Dmitry Rogozhkin]

This patch is doing nover except reordering functions to highlight
changes in the next patch.

Change-Id: I0cd298780503ae8f6f8035b86c59fc8b5191356b
Signed-off-by: Dmitry Rogozhkin <dmitry.v.rogozhkin at intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Cc: Peter Zijlstra <peterz at infradead.org>
---
 drivers/gpu/drm/i915/i915_pmu.c | 180 ++++++++++++++++++++--------------------
 1 file changed, 90 insertions(+), 90 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_pmu.c b/drivers/gpu/drm/i915/i915_pmu.c
index 3272ec0..bcdf2bc 100644
--- a/drivers/gpu/drm/i915/i915_pmu.c
+++ b/drivers/gpu/drm/i915/i915_pmu.c
@@ -363,6 +363,88 @@ static bool engine_needs_busy_stats(struct intel_engine_cs *engine)
 	       (engine->pmu.enable & BIT(I915_SAMPLE_BUSY));
 }
 
+static u64 count_interrupts(struct drm_i915_private *i915)
+{
+	/* open-coded kstat_irqs() */
+	struct irq_desc *desc = irq_to_desc(i915->drm.pdev->irq);
+	u64 sum = 0;
+	int cpu;
+
+	if (!desc || !desc->kstat_irqs)
+		return 0;
+
+	for_each_possible_cpu(cpu)
+		sum += *per_cpu_ptr(desc->kstat_irqs, cpu);
+
+	return sum;
+}
+
+static void i915_pmu_event_read(struct perf_event *event)
+{
+	struct drm_i915_private *i915 =
+		container_of(event->pmu, typeof(*i915), pmu.base);
+	u64 val = 0;
+
+	if (is_engine_event(event)) {
+		u8 sample = engine_event_sample(event);
+		struct intel_engine_cs *engine;
+
+		engine = intel_engine_lookup_user(i915,
+						  engine_event_class(event),
+						  engine_event_instance(event));
+
+		if (WARN_ON_ONCE(!engine)) {
+			/* Do nothing */
+		} else if (sample == I915_SAMPLE_BUSY &&
+			   engine->pmu.busy_stats) {
+			val = ktime_to_ns(intel_engine_get_busy_time(engine));
+		} else {
+			val = engine->pmu.sample[sample];
+		}
+	} else switch (event->attr.config) {
+	case I915_PMU_ACTUAL_FREQUENCY:
+		val = i915->pmu.sample[__I915_SAMPLE_FREQ_ACT];
+		break;
+	case I915_PMU_REQUESTED_FREQUENCY:
+		val = i915->pmu.sample[__I915_SAMPLE_FREQ_REQ];
+		break;
+	case I915_PMU_ENERGY:
+		val = intel_energy_uJ(i915);
+		break;
+	case I915_PMU_INTERRUPTS:
+		val = count_interrupts(i915);
+		break;
+
+	case I915_PMU_RC6_RESIDENCY:
+		if (!i915->gt.awake)
+			return;
+
+		val = intel_rc6_residency_ns(i915,
+					     IS_VALLEYVIEW(i915) ?
+					     VLV_GT_RENDER_RC6 :
+					     GEN6_GT_GFX_RC6);
+		break;
+
+	case I915_PMU_RC6p_RESIDENCY:
+		if (!i915->gt.awake)
+			return;
+
+		if (!IS_VALLEYVIEW(i915))
+			val = intel_rc6_residency_ns(i915, GEN6_GT_GFX_RC6p);
+		break;
+
+	case I915_PMU_RC6pp_RESIDENCY:
+		if (!i915->gt.awake)
+			return;
+
+		if (!IS_VALLEYVIEW(i915))
+			val = intel_rc6_residency_ns(i915, GEN6_GT_GFX_RC6pp);
+		break;
+	}
+
+	local64_set(&event->count, val);
+}
+
 static void i915_pmu_enable(struct perf_event *event)
 {
 	struct drm_i915_private *i915 =
@@ -440,23 +522,6 @@ static void i915_pmu_disable(struct perf_event *event)
 	i915_pmu_timer_cancel(event);
 }
 
-static int i915_pmu_event_add(struct perf_event *event, int flags)
-{
-	struct hw_perf_event *hwc = &event->hw;
-
-	if (flags & PERF_EF_START)
-		i915_pmu_enable(event);
-
-	hwc->state = !(flags & PERF_EF_START);
-
-	return 0;
-}
-
-static void i915_pmu_event_del(struct perf_event *event, int flags)
-{
-	i915_pmu_disable(event);
-}
-
 static void i915_pmu_event_start(struct perf_event *event, int flags)
 {
 	i915_pmu_enable(event);
@@ -467,86 +532,21 @@ static void i915_pmu_event_stop(struct perf_event *event, int flags)
 	i915_pmu_disable(event);
 }
 
-static u64 count_interrupts(struct drm_i915_private *i915)
+static int i915_pmu_event_add(struct perf_event *event, int flags)
 {
-	/* open-coded kstat_irqs() */
-	struct irq_desc *desc = irq_to_desc(i915->drm.pdev->irq);
-	u64 sum = 0;
-	int cpu;
+	struct hw_perf_event *hwc = &event->hw;
 
-	if (!desc || !desc->kstat_irqs)
-		return 0;
+	if (flags & PERF_EF_START)
+		i915_pmu_enable(event);
 
-	for_each_possible_cpu(cpu)
-		sum += *per_cpu_ptr(desc->kstat_irqs, cpu);
+	hwc->state = !(flags & PERF_EF_START);
 
-	return sum;
+	return 0;
 }
 
-static void i915_pmu_event_read(struct perf_event *event)
+static void i915_pmu_event_del(struct perf_event *event, int flags)
 {
-	struct drm_i915_private *i915 =
-		container_of(event->pmu, typeof(*i915), pmu.base);
-	u64 val = 0;
-
-	if (is_engine_event(event)) {
-		u8 sample = engine_event_sample(event);
-		struct intel_engine_cs *engine;
-
-		engine = intel_engine_lookup_user(i915,
-						  engine_event_class(event),
-						  engine_event_instance(event));
-
-		if (WARN_ON_ONCE(!engine)) {
-			/* Do nothing */
-		} else if (sample == I915_SAMPLE_BUSY &&
-			   engine->pmu.busy_stats) {
-			val = ktime_to_ns(intel_engine_get_busy_time(engine));
-		} else {
-			val = engine->pmu.sample[sample];
-		}
-	} else switch (event->attr.config) {
-	case I915_PMU_ACTUAL_FREQUENCY:
-		val = i915->pmu.sample[__I915_SAMPLE_FREQ_ACT];
-		break;
-	case I915_PMU_REQUESTED_FREQUENCY:
-		val = i915->pmu.sample[__I915_SAMPLE_FREQ_REQ];
-		break;
-	case I915_PMU_ENERGY:
-		val = intel_energy_uJ(i915);
-		break;
-	case I915_PMU_INTERRUPTS:
-		val = count_interrupts(i915);
-		break;
-
-	case I915_PMU_RC6_RESIDENCY:
-		if (!i915->gt.awake)
-			return;
-
-		val = intel_rc6_residency_ns(i915,
-					     IS_VALLEYVIEW(i915) ?
-					     VLV_GT_RENDER_RC6 :
-					     GEN6_GT_GFX_RC6);
-		break;
-
-	case I915_PMU_RC6p_RESIDENCY:
-		if (!i915->gt.awake)
-			return;
-
-		if (!IS_VALLEYVIEW(i915))
-			val = intel_rc6_residency_ns(i915, GEN6_GT_GFX_RC6p);
-		break;
-
-	case I915_PMU_RC6pp_RESIDENCY:
-		if (!i915->gt.awake)
-			return;
-
-		if (!IS_VALLEYVIEW(i915))
-			val = intel_rc6_residency_ns(i915, GEN6_GT_GFX_RC6pp);
-		break;
-	}
-
-	local64_set(&event->count, val);
+	i915_pmu_disable(event);
 }
 
 static int i915_pmu_event_event_idx(struct perf_event *event)
-- 
1.8.3.1