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From: Ville Syrjala <ville.syrjala@linux.intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH 1/6] drm/i915: Check crtc_state->wm.need_postvbl_update before grabbing wm.mutex
Date: Mon,  1 Jul 2019 19:05:45 +0300	[thread overview]
Message-ID: <20190701160550.24205-1-ville.syrjala@linux.intel.com> (raw)

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

wm.mutex does not protect the crtc state so no point in grabbing it
to check crtc_state->wm.need_postvbl_update.

Also do a bit of s/intel_crtc/crtc/ while at it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index d10c62d3f10c..807a078690d5 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1566,13 +1566,13 @@ static void g4x_optimize_watermarks(struct intel_atomic_state *state,
 				    struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
 
 	if (!crtc_state->wm.need_postvbl_update)
 		return;
 
 	mutex_lock(&dev_priv->wm.wm_mutex);
-	intel_crtc->wm.active.g4x = crtc_state->wm.g4x.optimal;
+	crtc->wm.active.g4x = crtc_state->wm.g4x.optimal;
 	g4x_program_watermarks(dev_priv);
 	mutex_unlock(&dev_priv->wm.wm_mutex);
 }
@@ -2185,13 +2185,13 @@ static void vlv_optimize_watermarks(struct intel_atomic_state *state,
 				    struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
 
 	if (!crtc_state->wm.need_postvbl_update)
 		return;
 
 	mutex_lock(&dev_priv->wm.wm_mutex);
-	intel_crtc->wm.active.vlv = crtc_state->wm.vlv.optimal;
+	crtc->wm.active.vlv = crtc_state->wm.vlv.optimal;
 	vlv_program_watermarks(dev_priv);
 	mutex_unlock(&dev_priv->wm.wm_mutex);
 }
@@ -5723,10 +5723,10 @@ static void ilk_initial_watermarks(struct intel_atomic_state *state,
 				   struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
 
 	mutex_lock(&dev_priv->wm.wm_mutex);
-	intel_crtc->wm.active.ilk = crtc_state->wm.ilk.intermediate;
+	crtc->wm.active.ilk = crtc_state->wm.ilk.intermediate;
 	ilk_program_watermarks(dev_priv);
 	mutex_unlock(&dev_priv->wm.wm_mutex);
 }
@@ -5735,13 +5735,14 @@ static void ilk_optimize_watermarks(struct intel_atomic_state *state,
 				    struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
+
+	if (!crtc_state->wm.need_postvbl_update)
+		return;
 
 	mutex_lock(&dev_priv->wm.wm_mutex);
-	if (crtc_state->wm.need_postvbl_update) {
-		intel_crtc->wm.active.ilk = crtc_state->wm.ilk.optimal;
-		ilk_program_watermarks(dev_priv);
-	}
+	crtc->wm.active.ilk = crtc_state->wm.ilk.optimal;
+	ilk_program_watermarks(dev_priv);
 	mutex_unlock(&dev_priv->wm.wm_mutex);
 }
 
-- 
2.21.0

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             reply	other threads:[~2019-07-01 16:05 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-01 16:05 Ville Syrjala [this message]
2019-07-01 16:05 ` [PATCH 2/6] drm/i915: Simplify modeset_get_crtc_power_domains() arguments Ville Syrjala
2019-07-01 16:05 ` [PATCH 3/6] drm/i915: Polish intel_shared_dpll_swap_state() Ville Syrjala
2019-07-01 16:05 ` [PATCH 4/6] drm/i915: Polish intel_atomic_track_fbs() Ville Syrjala
2019-07-01 16:05 ` [PATCH 5/6] drm/i915: Use intel_ types in intel_{lock, modeset}_all_pipes() Ville Syrjala
2019-07-01 16:05 ` [PATCH 6/6] drm/i915: Use intel_ types in intel_atomic_commit() Ville Syrjala
2019-07-01 17:46 ` ✓ Fi.CI.BAT: success for series starting with [1/6] drm/i915: Check crtc_state->wm.need_postvbl_update before grabbing wm.mutex Patchwork
2019-07-02 21:36 ` ✓ Fi.CI.IGT: " Patchwork
2019-07-11 16:13 ` [PATCH 1/6] " Imre Deak

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