drm/i915/irq: move locking inside vlv_display_irq_postinstall()

All users of vlv_display_irq_postinstall() outside of
intel_display_irq.c have a lock/unlock pair. Move the locking inside the
function. Add an unlocked variant for internal use, similar to the
_vlv_display_irq_reset() and vlv_display_irq_reset() functions.

Reviewed-by: Gustavo Sousa <[email protected]>
Link: https://lore.kernel.org/r/93ea785d2d9bdb4e18328aa42a00a492d9d783c0.1746536745.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <[email protected]>

Author: jnikula

drivers/gpu/drm/i915/display/intel_display_irq.c

@@ -1908,16 +1908,13 @@ static u32 vlv_error_mask(void)
 	return VLV_ERROR_PAGE_TABLE;
 }
 
-void vlv_display_irq_postinstall(struct intel_display *display)
+static void _vlv_display_irq_postinstall(struct intel_display *display)
 {
 	struct drm_i915_private *dev_priv = to_i915(display->drm);
 	u32 pipestat_mask;
 	u32 enable_mask;
 	enum pipe pipe;
 
-	if (!display->irq.vlv_display_irqs_enabled)
-		return;
-
 	if (display->platform.cherryview)
 		intel_de_write(display, DPINVGTT,
 			       DPINVGTT_STATUS_MASK_CHV |
@@ -1954,6 +1951,16 @@ void vlv_display_irq_postinstall(struct intel_display *display)
 	intel_display_irq_regs_init(display, VLV_IRQ_REGS, dev_priv->irq_mask, enable_mask);
 }
 
+void vlv_display_irq_postinstall(struct intel_display *display)
+{
+	struct drm_i915_private *dev_priv = to_i915(display->drm);
+
+	spin_lock_irq(&dev_priv->irq_lock);
+	if (display->irq.vlv_display_irqs_enabled)
+		_vlv_display_irq_postinstall(display);
+	spin_unlock_irq(&dev_priv->irq_lock);
+}
+
 void ibx_display_irq_reset(struct intel_display *display)
 {
 	struct drm_i915_private *i915 = to_i915(display->drm);
@@ -2126,7 +2133,7 @@ void valleyview_enable_display_irqs(struct intel_display *display)
 
 	if (intel_irqs_enabled(dev_priv)) {
 		_vlv_display_irq_reset(display);
-		vlv_display_irq_postinstall(display);
+		_vlv_display_irq_postinstall(display);
 	}
 
 out:

drivers/gpu/drm/i915/i915_irq.c

@@ -768,9 +768,7 @@ static void valleyview_irq_postinstall(struct drm_i915_private *dev_priv)
 
 	gen5_gt_irq_postinstall(to_gt(dev_priv));
 
-	spin_lock_irq(&dev_priv->irq_lock);
 	vlv_display_irq_postinstall(display);
-	spin_unlock_irq(&dev_priv->irq_lock);
 
 	intel_uncore_write(&dev_priv->uncore, VLV_MASTER_IER, MASTER_INTERRUPT_ENABLE);
 	intel_uncore_posting_read(&dev_priv->uncore, VLV_MASTER_IER);
@@ -827,9 +825,7 @@ static void cherryview_irq_postinstall(struct drm_i915_private *dev_priv)
 
 	gen8_gt_irq_postinstall(to_gt(dev_priv));
 
-	spin_lock_irq(&dev_priv->irq_lock);
 	vlv_display_irq_postinstall(display);
-	spin_unlock_irq(&dev_priv->irq_lock);
 
 	intel_uncore_write(&dev_priv->uncore, GEN8_MASTER_IRQ, GEN8_MASTER_IRQ_CONTROL);
 	intel_uncore_posting_read(&dev_priv->uncore, GEN8_MASTER_IRQ);