From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 7 Jun 2011 20:22:16 +0000 (+0200)
Subject: i915g: implement fence signalling
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=219150433a305b0e0b6093647758eed3a7650bc4;p=mesa.git

i915g: implement fence signalling

v2: Incorporated feedback from Jakob Bornecrantz.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/src/gallium/winsys/i915/drm/i915_drm_fence.c b/src/gallium/winsys/i915/drm/i915_drm_fence.c
index 30ebf4835ea..650ccfcd876 100644
--- a/src/gallium/winsys/i915/drm/i915_drm_fence.c
+++ b/src/gallium/winsys/i915/drm/i915_drm_fence.c
@@ -52,9 +52,13 @@ static int
 i915_drm_fence_signalled(struct i915_winsys *iws,
                           struct pipe_fence_handle *fence)
 {
-   assert(0);
+   struct i915_drm_fence *f = (struct i915_drm_fence *)fence;
 
-   return 0;
+   /* fence already expired */
+   if (!f->bo)
+	   return 1;
+
+   return !drm_intel_bo_busy(f->bo);
 }
 
 static int