Break out common code from gen8_gt_irq_handler and put it in to an always inlined function. gcc optimises out the shift at compile time. (Thomas Daniel/Daniel Vetter/Chris Wilson)
Issue: VIZ-4277 Signed-off-by: Nick Hoath <[email protected]> Cc: Thomas Daniel <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Chris Wilson <[email protected]> --- drivers/gpu/drm/i915/i915_irq.c | 40 ++++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index fbf9153..7837f5e 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1290,6 +1290,16 @@ static void snb_gt_irq_handler(struct drm_device *dev, ivybridge_parity_error_irq_handler(dev, gt_iir); } +static __always_inline void + gen8_cs_irq_handler(struct intel_engine_cs *ring, u32 iir, + int test_shift) +{ + if (iir & (GT_RENDER_USER_INTERRUPT << test_shift)) + notify_ring(ring); + if (iir & (GT_CONTEXT_SWITCH_INTERRUPT << test_shift)) + intel_lrc_irq_handler(ring); +} + static irqreturn_t gen8_gt_irq_handler(struct drm_i915_private *dev_priv, u32 master_ctl) { @@ -1301,15 +1311,11 @@ static irqreturn_t gen8_gt_irq_handler(struct drm_i915_private *dev_priv, I915_WRITE_FW(GEN8_GT_IIR(0), iir); ret = IRQ_HANDLED; - if (iir & (GT_CONTEXT_SWITCH_INTERRUPT << GEN8_RCS_IRQ_SHIFT)) - intel_lrc_irq_handler(&dev_priv->ring[RCS]); - if (iir & (GT_RENDER_USER_INTERRUPT << GEN8_RCS_IRQ_SHIFT)) - notify_ring(&dev_priv->ring[RCS]); + gen8_cs_irq_handler(&dev_priv->ring[RCS], + iir, GEN8_RCS_IRQ_SHIFT); - if (iir & (GT_CONTEXT_SWITCH_INTERRUPT << GEN8_BCS_IRQ_SHIFT)) - intel_lrc_irq_handler(&dev_priv->ring[BCS]); - if (iir & (GT_RENDER_USER_INTERRUPT << GEN8_BCS_IRQ_SHIFT)) - notify_ring(&dev_priv->ring[BCS]); + gen8_cs_irq_handler(&dev_priv->ring[BCS], + iir, GEN8_BCS_IRQ_SHIFT); } else DRM_ERROR("The master control interrupt lied (GT0)!\n"); } @@ -1320,15 +1326,11 @@ static irqreturn_t gen8_gt_irq_handler(struct drm_i915_private *dev_priv, I915_WRITE_FW(GEN8_GT_IIR(1), iir); ret = IRQ_HANDLED; - if (iir & (GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VCS1_IRQ_SHIFT)) - intel_lrc_irq_handler(&dev_priv->ring[VCS]); - if (iir & (GT_RENDER_USER_INTERRUPT << GEN8_VCS1_IRQ_SHIFT)) - notify_ring(&dev_priv->ring[VCS]); + gen8_cs_irq_handler(&dev_priv->ring[VCS], + iir, GEN8_VCS1_IRQ_SHIFT); - if (iir & (GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VCS2_IRQ_SHIFT)) - intel_lrc_irq_handler(&dev_priv->ring[VCS2]); - if (iir & (GT_RENDER_USER_INTERRUPT << GEN8_VCS2_IRQ_SHIFT)) - notify_ring(&dev_priv->ring[VCS2]); + gen8_cs_irq_handler(&dev_priv->ring[VCS2], + iir, GEN8_VCS2_IRQ_SHIFT); } else DRM_ERROR("The master control interrupt lied (GT1)!\n"); } @@ -1339,10 +1341,8 @@ static irqreturn_t gen8_gt_irq_handler(struct drm_i915_private *dev_priv, I915_WRITE_FW(GEN8_GT_IIR(3), iir); ret = IRQ_HANDLED; - if (iir & (GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VECS_IRQ_SHIFT)) - intel_lrc_irq_handler(&dev_priv->ring[VECS]); - if (iir & (GT_RENDER_USER_INTERRUPT << GEN8_VECS_IRQ_SHIFT)) - notify_ring(&dev_priv->ring[VECS]); + gen8_cs_irq_handler(&dev_priv->ring[VECS], + iir, GEN8_VECS_IRQ_SHIFT); } else DRM_ERROR("The master control interrupt lied (GT3)!\n"); } -- 1.9.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
