drm/amdgpu: Remove call to reservation_object_test_signaled_rcu before wait

Since fence_wait_timeout_reservation_object_wait_timeout_rcu() with a
timeout of 0 becomes reservation_object_test_signaled_rcu(), we do not
need to handle such conversion in the caller. The only challenge are
those callers that wish to differentiate the error code between the
nonblocking busy check and potentially blocking wait.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20160829070834.22296-1-chris@chris-wilson.co.uk

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index a7ea9a3b454e..e0171c75b60c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -407,10 +407,8 @@ int amdgpu_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
                 return -ENOENT;
         }
         robj = gem_to_amdgpu_bo(gobj);
-        if (timeout == 0)
-                ret = reservation_object_test_signaled_rcu(robj->tbo.resv, true);
-        else
-                ret = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true, timeout);
+        ret = reservation_object_wait_timeout_rcu(robj->tbo.resv, true, true,
+                                                  timeout);
 
         /* ret == 0 means not signaled,
          * ret > 0 means signaled