[Intel-gfx] [PATCH 1/7] drm/i915: Move RPS evaluation interval counters to i915->rps

[Chris Wilson]

Place the RPS counters inside the RPS struct.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_drv.h | 18 +++++++-----------
 drivers/gpu/drm/i915/i915_irq.c | 32 ++++++++++++++++----------------
 2 files changed, 23 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index fed405d1a7eb..daee71ef201d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -907,10 +907,10 @@ struct vlv_s0ix_state {
 	u32 clock_gate_dis2;
 };
 
-struct intel_rps_ei_calc {
-	u32 cz_ts_ei;
-	u32 render_ei_c0;
-	u32 media_ei_c0;
+struct intel_rps_ei {
+	u32 cz_clock;
+	u32 render_c0;
+	u32 media_c0;
 };
 
 struct intel_gen6_power_mgmt {
@@ -946,6 +946,9 @@ struct intel_gen6_power_mgmt {
 	struct delayed_work delayed_resume_work;
 	struct work_struct boost_work;
 
+	/* manual wa residency calculations */
+	struct intel_rps_ei up_ei, down_ei;
+
 	/*
 	 * Protects RPS/RC6 register access and PCU communication.
 	 * Must be taken after struct_mutex if nested.
@@ -1548,13 +1551,6 @@ struct drm_i915_private {
 	/* gen6+ rps state */
 	struct intel_gen6_power_mgmt rps;
 
-	/* rps wa up ei calculation */
-	struct intel_rps_ei_calc rps_up_ei;
-
-	/* rps wa down ei calculation */
-	struct intel_rps_ei_calc rps_down_ei;
-
-
 	/* ilk-only ips/rps state. Everything in here is protected by the global
 	 * mchdev_lock in intel_pm.c */
 	struct intel_ilk_power_mgmt ips;
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index a2d50980b827..8e19d031c05d 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1283,7 +1283,7 @@ static void notify_ring(struct drm_device *dev,
 }
 
 static u32 vlv_c0_residency(struct drm_i915_private *dev_priv,
-				struct  intel_rps_ei_calc *rps_ei)
+			    struct intel_rps_ei *rps_ei)
 {
 	u32 cz_ts, cz_freq_khz;
 	u32 render_count, media_count;
@@ -1296,22 +1296,22 @@ static u32 vlv_c0_residency(struct drm_i915_private *dev_priv,
 	render_count = I915_READ(VLV_RENDER_C0_COUNT_REG);
 	media_count = I915_READ(VLV_MEDIA_C0_COUNT_REG);
 
-	if (rps_ei->cz_ts_ei == 0) {
-		rps_ei->cz_ts_ei = cz_ts;
-		rps_ei->render_ei_c0 = render_count;
-		rps_ei->media_ei_c0 = media_count;
+	if (rps_ei->cz_clock == 0) {
+		rps_ei->cz_clock = cz_ts;
+		rps_ei->render_c0 = render_count;
+		rps_ei->media_c0 = media_count;
 
 		return dev_priv->rps.cur_freq;
 	}
 
-	elapsed_time = cz_ts - rps_ei->cz_ts_ei;
-	rps_ei->cz_ts_ei = cz_ts;
+	elapsed_time = cz_ts - rps_ei->cz_clock;
+	rps_ei->cz_clock = cz_ts;
 
-	elapsed_render = render_count - rps_ei->render_ei_c0;
-	rps_ei->render_ei_c0 = render_count;
+	elapsed_render = render_count - rps_ei->render_c0;
+	rps_ei->render_c0 = render_count;
 
-	elapsed_media = media_count - rps_ei->media_ei_c0;
-	rps_ei->media_ei_c0 = media_count;
+	elapsed_media = media_count - rps_ei->media_c0;
+	rps_ei->media_c0 = media_count;
 
 	/* Convert all the counters into common unit of milli sec */
 	elapsed_time /= VLV_CZ_CLOCK_TO_MILLI_SEC;
@@ -1347,9 +1347,9 @@ static u32 vlv_calc_delay_from_C0_counters(struct drm_i915_private *dev_priv)
 	WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));
 
 
-	if (dev_priv->rps_up_ei.cz_ts_ei == 0) {
-		vlv_c0_residency(dev_priv, &dev_priv->rps_up_ei);
-		vlv_c0_residency(dev_priv, &dev_priv->rps_down_ei);
+	if (dev_priv->rps.up_ei.cz_clock == 0) {
+		vlv_c0_residency(dev_priv, &dev_priv->rps.up_ei);
+		vlv_c0_residency(dev_priv, &dev_priv->rps.down_ei);
 		return dev_priv->rps.cur_freq;
 	}
 
@@ -1364,10 +1364,10 @@ static u32 vlv_calc_delay_from_C0_counters(struct drm_i915_private *dev_priv)
 		dev_priv->rps.ei_interrupt_count = 0;
 
 		residency_C0_down = vlv_c0_residency(dev_priv,
-						&dev_priv->rps_down_ei);
+						     &dev_priv->rps.down_ei);
 	} else {
 		residency_C0_up = vlv_c0_residency(dev_priv,
-						&dev_priv->rps_up_ei);
+						   &dev_priv->rps.up_ei);
 	}
 
 	new_delay = dev_priv->rps.cur_freq;
-- 
2.0.1