Let's continue the IRQ consolidation with display_irqs_enabled.

Another possibility was a full split on gt_irq vs de_irq,
but for now display_irqs_enabled is already protected
buy the same lock. So, at least for now, let's keep
them together.

Signed-off-by: Rodrigo Vivi <rodrigo.v...@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h      |  3 +--
 drivers/gpu/drm/i915/i915_irq.c      | 22 +++++++++++-----------
 drivers/gpu/drm/i915/intel_hotplug.c | 10 ++++++----
 3 files changed, 18 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 06617a67002c..874668b5da57 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -651,6 +651,7 @@ struct intel_irq {
        /* protects the irq masks */
        spinlock_t lock;
        bool rps_interrupts_enabled;
+       bool display_interrupts_enabled;
        u32 pm_iir;
 };
 
@@ -1554,8 +1555,6 @@ struct drm_i915_private {
 
        struct intel_irq irq;
 
-       bool display_irqs_enabled;
-
        /* To control wakeup latency, e.g. for irq-driven dp aux transfers. */
        struct pm_qos_request pm_qos;
 
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 487ea27ea152..019472c98aac 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1912,7 +1912,7 @@ static void i9xx_pipestat_irq_ack(struct drm_i915_private 
*dev_priv,
 
        spin_lock(&dev_priv->irq.lock);
 
-       if (!dev_priv->display_irqs_enabled) {
+       if (!dev_priv->irq.display_interrupts_enabled) {
                spin_unlock(&dev_priv->irq.lock);
                return;
        }
@@ -3488,7 +3488,7 @@ static void valleyview_irq_reset(struct drm_device *dev)
        gen5_gt_irq_reset(dev_priv);
 
        spin_lock_irq(&dev_priv->irq.lock);
-       if (dev_priv->display_irqs_enabled)
+       if (dev_priv->irq.display_interrupts_enabled)
                vlv_display_irq_reset(dev_priv);
        spin_unlock_irq(&dev_priv->irq.lock);
 }
@@ -3634,7 +3634,7 @@ static void cherryview_irq_reset(struct drm_device *dev)
        GEN3_IRQ_RESET(uncore, GEN8_PCU_);
 
        spin_lock_irq(&dev_priv->irq.lock);
-       if (dev_priv->display_irqs_enabled)
+       if (dev_priv->irq.display_interrupts_enabled)
                vlv_display_irq_reset(dev_priv);
        spin_unlock_irq(&dev_priv->irq.lock);
 }
@@ -4010,10 +4010,10 @@ void valleyview_enable_display_irqs(struct 
drm_i915_private *dev_priv)
 {
        lockdep_assert_held(&dev_priv->irq.lock);
 
-       if (dev_priv->display_irqs_enabled)
+       if (dev_priv->irq.display_interrupts_enabled)
                return;
 
-       dev_priv->display_irqs_enabled = true;
+       dev_priv->irq.display_interrupts_enabled = true;
 
        if (intel_irqs_enabled(dev_priv)) {
                vlv_display_irq_reset(dev_priv);
@@ -4025,10 +4025,10 @@ void valleyview_disable_display_irqs(struct 
drm_i915_private *dev_priv)
 {
        lockdep_assert_held(&dev_priv->irq.lock);
 
-       if (!dev_priv->display_irqs_enabled)
+       if (!dev_priv->irq.display_interrupts_enabled)
                return;
 
-       dev_priv->display_irqs_enabled = false;
+       dev_priv->irq.display_interrupts_enabled = false;
 
        if (intel_irqs_enabled(dev_priv))
                vlv_display_irq_reset(dev_priv);
@@ -4042,7 +4042,7 @@ static int valleyview_irq_postinstall(struct drm_device 
*dev)
        gen5_gt_irq_postinstall(dev);
 
        spin_lock_irq(&dev_priv->irq.lock);
-       if (dev_priv->display_irqs_enabled)
+       if (dev_priv->irq.display_interrupts_enabled)
                vlv_display_irq_postinstall(dev_priv);
        spin_unlock_irq(&dev_priv->irq.lock);
 
@@ -4245,7 +4245,7 @@ static int cherryview_irq_postinstall(struct drm_device 
*dev)
        gen8_gt_irq_postinstall(dev_priv);
 
        spin_lock_irq(&dev_priv->irq.lock);
-       if (dev_priv->display_irqs_enabled)
+       if (dev_priv->irq.display_interrupts_enabled)
                vlv_display_irq_postinstall(dev_priv);
        spin_unlock_irq(&dev_priv->irq.lock);
 
@@ -4749,9 +4749,9 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
         * outside of the power domain. We defer setting up the display irqs
         * in this case to the runtime pm.
         */
-       dev_priv->display_irqs_enabled = true;
+       dev_priv->irq.display_interrupts_enabled = true;
        if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-               dev_priv->display_irqs_enabled = false;
+               dev_priv->irq.display_interrupts_enabled = false;
 
        dev_priv->hotplug.hpd_storm_threshold = HPD_STORM_DEFAULT_THRESHOLD;
        /* If we have MST support, we want to avoid doing short HPD IRQ storm
diff --git a/drivers/gpu/drm/i915/intel_hotplug.c 
b/drivers/gpu/drm/i915/intel_hotplug.c
index 8260e81f88e7..89ee666eb78c 100644
--- a/drivers/gpu/drm/i915/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/intel_hotplug.c
@@ -258,7 +258,8 @@ static void intel_hpd_irq_storm_reenable_work(struct 
work_struct *work)
                }
                drm_connector_list_iter_end(&conn_iter);
        }
-       if (dev_priv->display_irqs_enabled && dev_priv->display.hpd_irq_setup)
+       if (dev_priv->irq.display_interrupts_enabled &&
+           dev_priv->display.hpd_irq_setup)
                dev_priv->display.hpd_irq_setup(dev_priv);
        spin_unlock_irq(&dev_priv->irq.lock);
 
@@ -502,7 +503,7 @@ void intel_hpd_irq_handler(struct drm_i915_private 
*dev_priv,
         * Disable any IRQs that storms were detected on. Polling enablement
         * happens later in our hotplug work.
         */
-       if (storm_detected && dev_priv->display_irqs_enabled)
+       if (storm_detected && dev_priv->irq.display_interrupts_enabled)
                dev_priv->display.hpd_irq_setup(dev_priv);
        spin_unlock(&dev_priv->irq.lock);
 
@@ -548,9 +549,10 @@ void intel_hpd_init(struct drm_i915_private *dev_priv)
         * Interrupt setup is already guaranteed to be single-threaded, this is
         * just to make the assert_spin_locked checks happy.
         */
-       if (dev_priv->display_irqs_enabled && dev_priv->display.hpd_irq_setup) {
+       if (dev_priv->irq.display_interrupts_enabled &&
+           dev_priv->display.hpd_irq_setup) {
                spin_lock_irq(&dev_priv->irq.lock);
-               if (dev_priv->display_irqs_enabled)
+               if (dev_priv->irq.display_interrupts_enabled)
                        dev_priv->display.hpd_irq_setup(dev_priv);
                spin_unlock_irq(&dev_priv->irq.lock);
        }
-- 
2.20.1

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