On 19/02/2015 17:17, john.c.harri...@intel.com wrote:
From: John Harrison <john.c.harri...@intel.com>

For some reason, the i915_add_request() call in
i915_gem_execbuffer_retire_commands() was explicitly having its return code
ignored. The _retire_commands() function itself was 'void'. Given that
_add_request() can fail without dispatching the batch buffer, this seems odd.

Also shrunk the parameter list to a single structure as everything it requires
is available in the execbuff_params object.

For: VIZ-5115
Signed-off-by: John Harrison <john.c.harri...@intel.com>
---
  drivers/gpu/drm/i915/i915_drv.h            |    5 +----
  drivers/gpu/drm/i915/i915_gem_execbuffer.c |   16 +++++++---------
  drivers/gpu/drm/i915/intel_lrc.c           |    3 +--
  3 files changed, 9 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index fdd63ab..b350910 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2640,10 +2640,7 @@ int i915_gem_sw_finish_ioctl(struct drm_device *dev, 
void *data,
                             struct drm_file *file_priv);
  void i915_gem_execbuffer_move_to_active(struct list_head *vmas,
                                        struct intel_engine_cs *ring);
-void i915_gem_execbuffer_retire_commands(struct drm_device *dev,
-                                        struct drm_file *file,
-                                        struct intel_engine_cs *ring,
-                                        struct drm_i915_gem_object *obj);
+int i915_gem_execbuffer_retire_commands(struct i915_execbuffer_params *params);
  int i915_gem_ringbuffer_submission(struct i915_execbuffer_params *params,
                                   struct drm_i915_gem_execbuffer2 *args,
                                   struct list_head *vmas);
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c 
b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 93b0ef0..ca85803 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -989,17 +989,15 @@ i915_gem_execbuffer_move_to_active(struct list_head *vmas,
        }
  }

-void
-i915_gem_execbuffer_retire_commands(struct drm_device *dev,
-                                   struct drm_file *file,
-                                   struct intel_engine_cs *ring,
-                                   struct drm_i915_gem_object *obj)
+int
+i915_gem_execbuffer_retire_commands(struct i915_execbuffer_params *params)
  {
        /* Unconditionally force add_request to emit a full flush. */
-       ring->gpu_caches_dirty = true;
+       params->ring->gpu_caches_dirty = true;

        /* Add a breadcrumb for the completion of the batch buffer */
-       (void)__i915_add_request(ring, file, obj);
+       return __i915_add_request(params->ring, params->file,
+                                 params->batch_obj);
  }

  static int
@@ -1282,8 +1280,8 @@ i915_gem_ringbuffer_submission(struct 
i915_execbuffer_params *params,
        trace_i915_gem_ring_dispatch(intel_ring_get_request(ring), 
params->dispatch_flags);

        i915_gem_execbuffer_move_to_active(vmas, ring);
-       i915_gem_execbuffer_retire_commands(params->dev, params->file, ring,
-                                           params->batch_obj);
+
+       ret = i915_gem_execbuffer_retire_commands(params);

  error:
        kfree(cliprects);
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index f6a24e8a2..dc474b4 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -715,9 +715,8 @@ int intel_execlists_submission(struct 
i915_execbuffer_params *params,
        trace_i915_gem_ring_dispatch(intel_ring_get_request(ring), 
params->dispatch_flags);

        i915_gem_execbuffer_move_to_active(vmas, ring);
-       i915_gem_execbuffer_retire_commands(params->dev, params->file, ring, 
params->batch_obj);

-       return 0;
+       return i915_gem_execbuffer_retire_commands(params);
  }

  void intel_execlists_retire_requests(struct intel_engine_cs *ring)


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

Thanks,
Tomas

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