diff options
| author | Imre Deak <imre.deak@intel.com> | 2017-09-28 13:06:24 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2017-10-02 12:09:11 +0300 |
| commit | 9dfe2e3ad375a9ba32a13888873ec4586be01ff7 (patch) | |
| tree | 02e65e5010f99234570b61f07e3ad2a3092f5e5a /drivers/gpu/drm/i915/i915_irq.c | |
| parent | dd9f31c7a3887950cbd0d49eb9d43f7a1518a356 (diff) | |
drm/i915/gen8+: Init/reset display interrupts only if i915 IRQs are enabled
Only init / reset the display interrupts during power well enabling /
disabling if the i915 interrupts are enabled. So far we did the
init / reset during driver loading / resuming too, where
initialization / enabling of the i915 interrupts happens only at a later
point. This didn't cause a problem due to GEN8_MASTER_IRQ_CONTROL being
cleared, but triggered gen3_assert_iir_is_zero() in GEN8_IRQ_INIT_NDX().
References: https://bugs.freedesktop.org/show_bug.cgi?id=102988
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20170928100624.15533-1-imre.deak@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index efd7827ff181..e5997e818673 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -3163,10 +3163,17 @@ void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv, enum pipe pipe; spin_lock_irq(&dev_priv->irq_lock); + + if (!intel_irqs_enabled(dev_priv)) { + spin_unlock_irq(&dev_priv->irq_lock); + return; + } + for_each_pipe_masked(dev_priv, pipe, pipe_mask) GEN8_IRQ_INIT_NDX(DE_PIPE, pipe, dev_priv->de_irq_mask[pipe], ~dev_priv->de_irq_mask[pipe] | extra_ier); + spin_unlock_irq(&dev_priv->irq_lock); } @@ -3176,8 +3183,15 @@ void gen8_irq_power_well_pre_disable(struct drm_i915_private *dev_priv, enum pipe pipe; spin_lock_irq(&dev_priv->irq_lock); + + if (!intel_irqs_enabled(dev_priv)) { + spin_unlock_irq(&dev_priv->irq_lock); + return; + } + for_each_pipe_masked(dev_priv, pipe, pipe_mask) GEN8_IRQ_RESET_NDX(DE_PIPE, pipe); + spin_unlock_irq(&dev_priv->irq_lock); /* make sure we're done processing display irqs */ |