diff options
| author | Ville Syrjälä <[email protected]> | 2015-08-27 23:55:58 +0300 |
|---|---|---|
| committer | Daniel Vetter <[email protected]> | 2015-09-02 16:51:08 +0200 |
| commit | d9dc34f1a1e9649f6e1e3709f6177f7883ce75ce (patch) | |
| tree | 3ef2452d776bc7f759bcded1820b836c1cdde5bc | |
| parent | 87a0210665eeca7c5fa237592da025650b216831 (diff) | |
drm/i915: Factor out ilk_update_display_irq()
Extract the core of ironlake_{enable,disable}_display_irq() into a new
function. We'll have further use for it later.
v2: Warn about invalid mask vs. enable bits (Paulo)
Reviewed-by: Paulo Zanoni <[email protected]>
Signed-off-by: Ville Syrjälä <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 41 |
1 files changed, 26 insertions, 15 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index de0edbdb05ed..baff96333498 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -154,35 +154,46 @@ static const u32 hpd_bxt[HPD_NUM_PINS] = { static void gen6_rps_irq_handler(struct drm_i915_private *dev_priv, u32 pm_iir); -/* For display hotplug interrupt */ -void -ironlake_enable_display_irq(struct drm_i915_private *dev_priv, u32 mask) +/** + * ilk_update_display_irq - update DEIMR + * @dev_priv: driver private + * @interrupt_mask: mask of interrupt bits to update + * @enabled_irq_mask: mask of interrupt bits to enable + */ +static void ilk_update_display_irq(struct drm_i915_private *dev_priv, + uint32_t interrupt_mask, + uint32_t enabled_irq_mask) { + uint32_t new_val; + assert_spin_locked(&dev_priv->irq_lock); + WARN_ON(enabled_irq_mask & ~interrupt_mask); + if (WARN_ON(!intel_irqs_enabled(dev_priv))) return; - if ((dev_priv->irq_mask & mask) != 0) { - dev_priv->irq_mask &= ~mask; + new_val = dev_priv->irq_mask; + new_val &= ~interrupt_mask; + new_val |= (~enabled_irq_mask & interrupt_mask); + + if (new_val != dev_priv->irq_mask) { + dev_priv->irq_mask = new_val; I915_WRITE(DEIMR, dev_priv->irq_mask); POSTING_READ(DEIMR); } } void -ironlake_disable_display_irq(struct drm_i915_private *dev_priv, u32 mask) +ironlake_enable_display_irq(struct drm_i915_private *dev_priv, u32 mask) { - assert_spin_locked(&dev_priv->irq_lock); - - if (WARN_ON(!intel_irqs_enabled(dev_priv))) - return; + ilk_update_display_irq(dev_priv, mask, mask); +} - if ((dev_priv->irq_mask & mask) != mask) { - dev_priv->irq_mask |= mask; - I915_WRITE(DEIMR, dev_priv->irq_mask); - POSTING_READ(DEIMR); - } +void +ironlake_disable_display_irq(struct drm_i915_private *dev_priv, u32 mask) +{ + ilk_update_display_irq(dev_priv, mask, 0); } /** |