On 19/03/2015 12:31, john.c.harri...@intel.com wrote:
From: John Harrison <john.c.harri...@intel.com>

As there is no OLR to check, the check_olr() function is now a no-op and can be
removed.

For: VIZ-5115
Signed-off-by: John Harrison <john.c.harri...@intel.com>
---
  drivers/gpu/drm/i915/i915_drv.h |    1 -
  drivers/gpu/drm/i915/i915_gem.c |   28 ----------------------------
  2 files changed, 29 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 764ee4f..0a68dbc 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2713,7 +2713,6 @@ bool i915_gem_retire_requests(struct drm_device *dev);
  void i915_gem_retire_requests_ring(struct intel_engine_cs *ring);
  int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
                                      bool interruptible);
-int __must_check i915_gem_check_olr(struct drm_i915_gem_request *req);

  static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
  {
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index ecdae34..acb824c 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1153,17 +1153,6 @@ i915_gem_check_wedge(struct i915_gpu_error *error,
        return 0;
  }

-/*
- * Compare arbitrary request against outstanding lazy request. Emit on match.
- */
-int
-i915_gem_check_olr(struct drm_i915_gem_request *req)
-{
-       WARN_ON(!mutex_is_locked(&req->ring->dev->struct_mutex));
-
-       return 0;
-}
-
  static void fake_irq(unsigned long data)
  {
        wake_up_process((struct task_struct *)data);
@@ -1338,10 +1327,6 @@ i915_wait_request(struct drm_i915_gem_request *req)
        if (ret)
                return ret;

-       ret = i915_gem_check_olr(req);
-       if (ret)
-               return ret;
-
        reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
        i915_gem_request_reference(req);
        ret = __i915_wait_request(req, reset_counter,
@@ -1415,10 +1400,6 @@ i915_gem_object_wait_rendering__nonblocking(struct 
drm_i915_gem_object *obj,
        if (ret)
                return ret;

-       ret = i915_gem_check_olr(req);
-       if (ret)
-               return ret;
-
        reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
        i915_gem_request_reference(req);
        mutex_unlock(&dev->struct_mutex);
@@ -2852,15 +2833,10 @@ static int
  i915_gem_object_flush_active(struct drm_i915_gem_object *obj)
  {
        struct intel_engine_cs *ring;
-       int ret;

        if (obj->active) {
                ring = i915_gem_request_get_ring(obj->last_read_req);

-               ret = i915_gem_check_olr(obj->last_read_req);
-               if (ret)
-                       return ret;
-
                i915_gem_retire_requests_ring(ring);
        }

@@ -2997,10 +2973,6 @@ i915_gem_object_sync(struct drm_i915_gem_object *obj,
                        return ret;
        }

-       ret = i915_gem_check_olr(obj->last_read_req);
-       if (ret)
-               return ret;
-
        trace_i915_gem_ring_sync_to(*to_req, from, obj->last_read_req);
        ret = to->semaphore.sync_to(*to_req, from, seqno);
        if (!ret)


Reviewed-by: Tomas Elf <tomas....@intel.com>

Thanks,
Tomas
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