blob: 74471f5e58c8f9be630ebe30749f94dfe0483466 [file] [log] [blame]
From 9d42c74ecac4cca476f9bcf160f40275ffe7ffc2 Mon Sep 17 00:00:00 2001
From: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Tue, 6 Aug 2013 18:57:12 -0300
Subject: drm/i915: wrap GTIMR changes
Just like the functions that touch DEIMR and SDEIMR, but for GTIMR.
The new functions contain a POSTING_READ(GTIMR) which was not present
at the 2 callers inside i915_irq.c.
The implementation is based on ibx_display_interrupt_update.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit 43eaea131823c5ca13d03364e61bd15f0b22a0f7)
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
---
drivers/gpu/drm/i915/i915_irq.c | 34 ++++++++++++++++++++++++++++----
drivers/gpu/drm/i915/intel_drv.h | 3 ++
drivers/gpu/drm/i915/intel_ringbuffer.c | 22 +++++---------------
3 files changed, 39 insertions(+), 20 deletions(-)
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -104,6 +104,34 @@ ironlake_disable_display_irq(drm_i915_pr
}
}
+/**
+ * ilk_update_gt_irq - update GTIMR
+ * @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_gt_irq(struct drm_i915_private *dev_priv,
+ uint32_t interrupt_mask,
+ uint32_t enabled_irq_mask)
+{
+ assert_spin_locked(&dev_priv->irq_lock);
+
+ dev_priv->gt_irq_mask &= ~interrupt_mask;
+ dev_priv->gt_irq_mask |= (~enabled_irq_mask & interrupt_mask);
+ I915_WRITE(GTIMR, dev_priv->gt_irq_mask);
+ POSTING_READ(GTIMR);
+}
+
+void ilk_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask)
+{
+ ilk_update_gt_irq(dev_priv, mask, mask);
+}
+
+void ilk_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask)
+{
+ ilk_update_gt_irq(dev_priv, mask, 0);
+}
+
static bool ivb_can_enable_err_int(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -806,8 +834,7 @@ static void ivybridge_parity_work(struct
I915_WRITE(GEN7_MISCCPCTL, misccpctl);
spin_lock_irqsave(&dev_priv->irq_lock, flags);
- dev_priv->gt_irq_mask &= ~GT_RENDER_L3_PARITY_ERROR_INTERRUPT;
- I915_WRITE(GTIMR, dev_priv->gt_irq_mask);
+ ilk_enable_gt_irq(dev_priv, GT_RENDER_L3_PARITY_ERROR_INTERRUPT);
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
mutex_unlock(&dev_priv->dev->struct_mutex);
@@ -837,8 +864,7 @@ static void ivybridge_parity_error_irq_h
return;
spin_lock(&dev_priv->irq_lock);
- dev_priv->gt_irq_mask |= GT_RENDER_L3_PARITY_ERROR_INTERRUPT;
- I915_WRITE(GTIMR, dev_priv->gt_irq_mask);
+ ilk_disable_gt_irq(dev_priv, GT_RENDER_L3_PARITY_ERROR_INTERRUPT);
spin_unlock(&dev_priv->irq_lock);
queue_work(dev_priv->wq, &dev_priv->l3_parity.error_work);
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -778,5 +778,8 @@ extern void intel_edp_psr_update(struct
extern void hsw_disable_lcpll(struct drm_i915_private *dev_priv,
bool switch_to_fclk, bool allow_power_down);
extern void hsw_restore_lcpll(struct drm_i915_private *dev_priv);
+extern void ilk_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
+extern void ilk_disable_gt_irq(struct drm_i915_private *dev_priv,
+ uint32_t mask);
#endif /* __INTEL_DRV_H__ */
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -842,11 +842,8 @@ gen5_ring_get_irq(struct intel_ring_buff
return false;
spin_lock_irqsave(&dev_priv->irq_lock, flags);
- if (ring->irq_refcount++ == 0) {
- dev_priv->gt_irq_mask &= ~ring->irq_enable_mask;
- I915_WRITE(GTIMR, dev_priv->gt_irq_mask);
- POSTING_READ(GTIMR);
- }
+ if (ring->irq_refcount++ == 0)
+ ilk_enable_gt_irq(dev_priv, ring->irq_enable_mask);
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
return true;
@@ -860,11 +857,8 @@ gen5_ring_put_irq(struct intel_ring_buff
unsigned long flags;
spin_lock_irqsave(&dev_priv->irq_lock, flags);
- if (--ring->irq_refcount == 0) {
- dev_priv->gt_irq_mask |= ring->irq_enable_mask;
- I915_WRITE(GTIMR, dev_priv->gt_irq_mask);
- POSTING_READ(GTIMR);
- }
+ if (--ring->irq_refcount == 0)
+ ilk_disable_gt_irq(dev_priv, ring->irq_enable_mask);
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
}
@@ -1046,9 +1040,7 @@ gen6_ring_get_irq(struct intel_ring_buff
GT_RENDER_L3_PARITY_ERROR_INTERRUPT));
else
I915_WRITE_IMR(ring, ~ring->irq_enable_mask);
- dev_priv->gt_irq_mask &= ~ring->irq_enable_mask;
- I915_WRITE(GTIMR, dev_priv->gt_irq_mask);
- POSTING_READ(GTIMR);
+ ilk_enable_gt_irq(dev_priv, ring->irq_enable_mask);
}
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
@@ -1069,9 +1061,7 @@ gen6_ring_put_irq(struct intel_ring_buff
~GT_RENDER_L3_PARITY_ERROR_INTERRUPT);
else
I915_WRITE_IMR(ring, ~0);
- dev_priv->gt_irq_mask |= ring->irq_enable_mask;
- I915_WRITE(GTIMR, dev_priv->gt_irq_mask);
- POSTING_READ(GTIMR);
+ ilk_disable_gt_irq(dev_priv, ring->irq_enable_mask);
}
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);