drm/i915: Add intel implementation of the pageflip ioctl

Acked-by: Jakob Bornecrantz <jakob@vmware.com>
Acked-by: Thomas Hellström <thomas@shipmail.org>
Review-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jesse "Orange Smoothie" Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Eric Anholt <eric@anholt.net>

1 files changed, 15 insertions, 4 deletions

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 77bc1d28f744..e2d01b3fa171 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -43,10 +43,13 @@
  * we leave them always unmasked in IMR and then control enabling them through
  * PIPESTAT alone.
  */
-#define I915_INTERRUPT_ENABLE_FIX (I915_ASLE_INTERRUPT |                 \
-                                   I915_DISPLAY_PIPE_A_EVENT_INTERRUPT | \
-                                   I915_DISPLAY_PIPE_B_EVENT_INTERRUPT | \
-                                   I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT)
+#define I915_INTERRUPT_ENABLE_FIX                       \
+        (I915_ASLE_INTERRUPT |                          \
+         I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |          \
+         I915_DISPLAY_PIPE_B_EVENT_INTERRUPT |          \
+         I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |  \
+         I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT |  \
+         I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT)
 
 /** Interrupts that we mask and unmask at runtime. */
 #define I915_INTERRUPT_ENABLE_VAR (I915_USER_INTERRUPT)
@@ -643,14 +646,22 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
                         mod_timer(&dev_priv->hangcheck_timer, jiffies + DRM_I915_HANGCHECK_PERIOD);
                 }
 
+                if (iir & I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT)
+                        intel_prepare_page_flip(dev, 0);
+
+                if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT)
+                        intel_prepare_page_flip(dev, 1);
+
                 if (pipea_stats & vblank_status) {
                         vblank++;
                         drm_handle_vblank(dev, 0);
+                        intel_finish_page_flip(dev, 0);
                 }
 
                 if (pipeb_stats & vblank_status) {
                         vblank++;
                         drm_handle_vblank(dev, 1);
+                        intel_finish_page_flip(dev, 1);
                 }
 
                 if ((pipeb_stats & I915_LEGACY_BLC_EVENT_STATUS) ||