Grab bag for all the special cases:
- i9xx_check_fifo_underruns is only called from crtc_enable hooks,
  i.e. process context.
- i915_enable_asle_pipestat is only called from interrupt postinstall
  hooks. So again process context.
- gen8_irq_power_well_post_enable is called from the runtime pm code,
  which again means process context.
- The open-coded hpd_irq_setup loop in _thaw is also running in process
  context.

So for all of them the plain _irq variant is sufficient.

Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/i915_drv.c |  5 ++---
 drivers/gpu/drm/i915/i915_irq.c | 16 ++++++----------
 2 files changed, 8 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index b8bd0080603e..8ce1b13ad97e 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -686,11 +686,10 @@ static int __i915_drm_thaw(struct drm_device *dev, bool 
restore_gtt_mappings)
                intel_modeset_init_hw(dev);

                {
-                       unsigned long irqflags;
-                       spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+                       spin_lock_irq(&dev_priv->irq_lock);
                        if (dev_priv->display.hpd_irq_setup)
                                dev_priv->display.hpd_irq_setup(dev);
-                       spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+                       spin_unlock_irq(&dev_priv->irq_lock);
                }

                intel_dp_mst_resume(dev);
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 6a4f389ff2f5..a08cdc62f841 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -310,9 +310,8 @@ void i9xx_check_fifo_underruns(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *crtc;
-       unsigned long flags;

-       spin_lock_irqsave(&dev_priv->irq_lock, flags);
+       spin_lock_irq(&dev_priv->irq_lock);

        for_each_intel_crtc(dev, crtc) {
                u32 reg = PIPESTAT(crtc->pipe);
@@ -331,7 +330,7 @@ void i9xx_check_fifo_underruns(struct drm_device *dev)
                DRM_ERROR("pipe %c underrun\n", pipe_name(crtc->pipe));
        }

-       spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
+       spin_unlock_irq(&dev_priv->irq_lock);
 }

 static void i9xx_set_fifo_underrun_reporting(struct drm_device *dev,
@@ -696,19 +695,18 @@ i915_disable_pipestat(struct drm_i915_private *dev_priv, 
enum pipe pipe,
 static void i915_enable_asle_pipestat(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
-       unsigned long irqflags;

        if (!dev_priv->opregion.asle || !IS_MOBILE(dev))
                return;

-       spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+       spin_lock_irq(&dev_priv->irq_lock);

        i915_enable_pipestat(dev_priv, PIPE_B, PIPE_LEGACY_BLC_EVENT_STATUS);
        if (INTEL_INFO(dev)->gen >= 4)
                i915_enable_pipestat(dev_priv, PIPE_A,
                                     PIPE_LEGACY_BLC_EVENT_STATUS);

-       spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+       spin_unlock_irq(&dev_priv->irq_lock);
 }

 /**
@@ -3477,14 +3475,12 @@ static void gen8_irq_reset(struct drm_device *dev)

 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv)
 {
-       unsigned long irqflags;
-
-       spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+       spin_lock_irq(&dev_priv->irq_lock);
        GEN8_IRQ_INIT_NDX(DE_PIPE, PIPE_B, dev_priv->de_irq_mask[PIPE_B],
                          ~dev_priv->de_irq_mask[PIPE_B]);
        GEN8_IRQ_INIT_NDX(DE_PIPE, PIPE_C, dev_priv->de_irq_mask[PIPE_C],
                          ~dev_priv->de_irq_mask[PIPE_C]);
-       spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+       spin_unlock_irq(&dev_priv->irq_lock);
 }

 static void cherryview_irq_preinstall(struct drm_device *dev)
-- 
1.9.3

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