From: Ilia Mirkin <imirkin@alum.mit.edu>
Date: Thu, 10 Jul 2014 03:20:43 +0000 (-0400)
Subject: nouveau: check if a fence has already been signalled
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bbc4a7bd31e604ee94b9285ec3e6c8bee0cb9502;p=mesa.git

nouveau: check if a fence has already been signalled

nouveau_fence_update does real work unconditionally. Avoid doing that if
the fence we're checking on has already been signalled.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
---

diff --git a/src/gallium/drivers/nouveau/nouveau_fence.c b/src/gallium/drivers/nouveau/nouveau_fence.c
index c6867104adb..a9448a4c721 100644
--- a/src/gallium/drivers/nouveau/nouveau_fence.c
+++ b/src/gallium/drivers/nouveau/nouveau_fence.c
@@ -174,6 +174,9 @@ nouveau_fence_signalled(struct nouveau_fence *fence)
 {
    struct nouveau_screen *screen = fence->screen;
 
+   if (fence->state == NOUVEAU_FENCE_STATE_SIGNALLED)
+      return TRUE;
+
    if (fence->state >= NOUVEAU_FENCE_STATE_EMITTED)
       nouveau_fence_update(screen, FALSE);