From: Ville Syrjälä <ville.syrj...@linux.intel.com>
Move i8xx_handle_vblank() and i915_handle_vblank() to an earlier
location so that we can later collect all the PIPESTAT irq handling
code next to the VLV/CHV PIPESTAT handling code.
While at it s/u32 iir/u16 iir/ for i8xx_handle_vblank() since the
IIR register is only 16 bits on gen2.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/i915_irq.c | 124 ++++++++++++++++++++--------------------
1 file changed, 62 insertions(+), 62 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 43eaacaa7d52..e18b66d01cad 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1772,6 +1772,68 @@ static void intel_pipe_handle_vblank(struct
drm_i915_private *dev_priv,
intel_check_page_flip(dev_priv, pipe);
}
+/*
+ * Returns true when a page flip has completed.
+ */
+static bool i8xx_handle_vblank(struct drm_i915_private *dev_priv,
+ int plane, int pipe, u16 iir)
+{
+ u16 flip_pending = DISPLAY_PLANE_FLIP_PENDING(plane);
+
+ if (!_intel_pipe_handle_vblank(dev_priv, pipe))
+ return false;
+
+ if ((iir & flip_pending) == 0)
+ goto check_page_flip;
+
+ /* We detect FlipDone by looking for the change in PendingFlip from '1'
+ * to '0' on the following vblank, i.e. IIR has the Pendingflip
+ * asserted following the MI_DISPLAY_FLIP, but ISR is deasserted, hence
+ * the flip is completed (no longer pending). Since this doesn't raise
+ * an interrupt per se, we watch for the change at vblank.
+ */
+ if (I915_READ16(ISR) & flip_pending)
+ goto check_page_flip;
+
+ intel_finish_page_flip_cs(dev_priv, pipe);
+ return true;
+
+check_page_flip:
+ intel_check_page_flip(dev_priv, pipe);
+ return false;
+}
+
+/*
+ * Returns true when a page flip has completed.
+ */
+static bool i915_handle_vblank(struct drm_i915_private *dev_priv,
+ int plane, int pipe, u32 iir)
+{
+ u32 flip_pending = DISPLAY_PLANE_FLIP_PENDING(plane);
+
+ if (!_intel_pipe_handle_vblank(dev_priv, pipe))
+ return false;
+
+ if ((iir & flip_pending) == 0)
+ goto check_page_flip;
+
+ /* We detect FlipDone by looking for the change in PendingFlip from '1'
+ * to '0' on the following vblank, i.e. IIR has the Pendingflip
+ * asserted following the MI_DISPLAY_FLIP, but ISR is deasserted, hence
+ * the flip is completed (no longer pending). Since this doesn't raise
+ * an interrupt per se, we watch for the change at vblank.
+ */
+ if (I915_READ(ISR) & flip_pending)
+ goto check_page_flip;
+
+ intel_finish_page_flip_cs(dev_priv, pipe);
+ return true;
+
+check_page_flip:
+ intel_check_page_flip(dev_priv, pipe);
+ return false;
+}
+
static void i9xx_pipestat_irq_reset(struct drm_i915_private *dev_priv)
{
enum pipe pipe;
@@ -3624,37 +3686,6 @@ static int i8xx_irq_postinstall(struct drm_device *dev)
return 0;
}
-/*
- * Returns true when a page flip has completed.
- */
-static bool i8xx_handle_vblank(struct drm_i915_private *dev_priv,
- int plane, int pipe, u32 iir)
-{
- u16 flip_pending = DISPLAY_PLANE_FLIP_PENDING(plane);
-
- if (!_intel_pipe_handle_vblank(dev_priv, pipe))
- return false;
-
- if ((iir & flip_pending) == 0)
- goto check_page_flip;
-
- /* We detect FlipDone by looking for the change in PendingFlip from '1'
- * to '0' on the following vblank, i.e. IIR has the Pendingflip
- * asserted following the MI_DISPLAY_FLIP, but ISR is deasserted, hence
- * the flip is completed (no longer pending). Since this doesn't raise
- * an interrupt per se, we watch for the change at vblank.
- */
- if (I915_READ16(ISR) & flip_pending)
- goto check_page_flip;
-
- intel_finish_page_flip_cs(dev_priv, pipe);
- return true;
-
-check_page_flip:
- intel_check_page_flip(dev_priv, pipe);
- return false;
-}
-
static irqreturn_t i8xx_irq_handler(int irq, void *arg)
{
struct drm_device *dev = arg;
@@ -3792,37 +3823,6 @@ static int i915_irq_postinstall(struct drm_device *dev)
return 0;
}
-/*
- * Returns true when a page flip has completed.
- */
-static bool i915_handle_vblank(struct drm_i915_private *dev_priv,
- int plane, int pipe, u32 iir)
-{
- u32 flip_pending = DISPLAY_PLANE_FLIP_PENDING(plane);
-
- if (!_intel_pipe_handle_vblank(dev_priv, pipe))
- return false;
-
- if ((iir & flip_pending) == 0)
- goto check_page_flip;
-
- /* We detect FlipDone by looking for the change in PendingFlip from '1'
- * to '0' on the following vblank, i.e. IIR has the Pendingflip
- * asserted following the MI_DISPLAY_FLIP, but ISR is deasserted, hence
- * the flip is completed (no longer pending). Since this doesn't raise
- * an interrupt per se, we watch for the change at vblank.
- */
- if (I915_READ(ISR) & flip_pending)
- goto check_page_flip;
-
- intel_finish_page_flip_cs(dev_priv, pipe);
- return true;
-
-check_page_flip:
- intel_check_page_flip(dev_priv, pipe);
- return false;
-}
-
static irqreturn_t i915_irq_handler(int irq, void *arg)
{
struct drm_device *dev = arg;
--
2.13.0
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