From: John Harrison <john.c.harri...@intel.com>

There is no longer any need to retrieve a seqno value from an i915_add_request()
call. The calling code already knows which request structure is being processed
(it can only be ring->OLR). And as the request itself is now used in preference
to the basic seqno value, the latter is now redundant in this situation.

For: VIZ-4377
Signed-off-by: John Harrison <john.c.harri...@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h              |    7 +++----
 drivers/gpu/drm/i915/i915_gem.c              |    7 ++-----
 drivers/gpu/drm/i915/i915_gem_execbuffer.c   |    2 +-
 drivers/gpu/drm/i915/i915_gem_render_state.c |    2 +-
 drivers/gpu/drm/i915/intel_lrc.c             |    2 +-
 drivers/gpu/drm/i915/intel_overlay.c         |    4 ++--
 drivers/gpu/drm/i915/intel_ringbuffer.c      |    2 +-
 7 files changed, 11 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index fded90b..3e745bb 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2639,10 +2639,9 @@ int __must_check i915_gpu_idle(struct drm_device *dev);
 int __must_check i915_gem_suspend(struct drm_device *dev);
 int __i915_add_request(struct intel_engine_cs *ring,
                       struct drm_file *file,
-                      struct drm_i915_gem_object *batch_obj,
-                      u32 *seqno);
-#define i915_add_request(ring, seqno) \
-       __i915_add_request(ring, NULL, NULL, seqno)
+                      struct drm_i915_gem_object *batch_obj);
+#define i915_add_request(ring) \
+       __i915_add_request(ring, NULL, NULL)
 int __i915_wait_request(struct drm_i915_gem_request *req,
                        unsigned reset_counter,
                        bool interruptible,
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 53ea0e1..490b664 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1189,7 +1189,7 @@ i915_gem_check_olr(struct drm_i915_gem_request *req)
 
        ret = 0;
        if (req == req->ring->outstanding_lazy_request)
-               ret = i915_add_request(req->ring, NULL);
+               ret = i915_add_request(req->ring);
 
        return ret;
 }
@@ -2414,8 +2414,7 @@ i915_gem_get_seqno(struct drm_device *dev, u32 *seqno)
 
 int __i915_add_request(struct intel_engine_cs *ring,
                       struct drm_file *file,
-                      struct drm_i915_gem_object *obj,
-                      u32 *out_seqno)
+                      struct drm_i915_gem_object *obj)
 {
        struct drm_i915_private *dev_priv = ring->dev->dev_private;
        struct drm_i915_gem_request *request;
@@ -2516,8 +2515,6 @@ int __i915_add_request(struct intel_engine_cs *ring,
                intel_mark_busy(dev_priv->dev);
        }
 
-       if (out_seqno)
-               *out_seqno = request->seqno;
        return 0;
 }
 
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c 
b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 8123cb5..233fff1 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -990,7 +990,7 @@ i915_gem_execbuffer_retire_commands(struct drm_device *dev,
        ring->gpu_caches_dirty = true;
 
        /* Add a breadcrumb for the completion of the batch buffer */
-       (void)__i915_add_request(ring, file, obj, NULL);
+       (void)__i915_add_request(ring, file, obj);
 }
 
 static int
diff --git a/drivers/gpu/drm/i915/i915_gem_render_state.c 
b/drivers/gpu/drm/i915/i915_gem_render_state.c
index 98dcd94..521548a 100644
--- a/drivers/gpu/drm/i915/i915_gem_render_state.c
+++ b/drivers/gpu/drm/i915/i915_gem_render_state.c
@@ -173,7 +173,7 @@ int i915_gem_render_state_init(struct intel_engine_cs *ring)
 
        i915_vma_move_to_active(i915_gem_obj_to_ggtt(so.obj), ring);
 
-       ret = __i915_add_request(ring, NULL, so.obj, NULL);
+       ret = __i915_add_request(ring, NULL, so.obj);
        /* __i915_add_request moves object to inactive if it fails */
 out:
        i915_gem_render_state_fini(&so);
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index db8efaa..b2ec8ab 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1526,7 +1526,7 @@ int intel_lr_context_render_state_init(struct 
intel_engine_cs *ring,
 
        i915_vma_move_to_active(i915_gem_obj_to_ggtt(so.obj), ring);
 
-       ret = __i915_add_request(ring, file, so.obj, NULL);
+       ret = __i915_add_request(ring, file, so.obj);
        /* intel_logical_ring_add_request moves object to inactive if it
         * fails */
 out:
diff --git a/drivers/gpu/drm/i915/intel_overlay.c 
b/drivers/gpu/drm/i915/intel_overlay.c
index 6c530e2..c1abf49 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -219,7 +219,7 @@ static int intel_overlay_do_wait_request(struct 
intel_overlay *overlay,
        BUG_ON(overlay->last_flip_req);
        i915_gem_request_assign(&overlay->last_flip_req,
                                             ring->outstanding_lazy_request);
-       ret = i915_add_request(ring, NULL);
+       ret = i915_add_request(ring);
        if (ret)
                return ret;
 
@@ -291,7 +291,7 @@ static int intel_overlay_continue(struct intel_overlay 
*overlay,
        WARN_ON(overlay->last_flip_req);
        i915_gem_request_assign(&overlay->last_flip_req,
                                             ring->outstanding_lazy_request);
-       return i915_add_request(ring, NULL);
+       return i915_add_request(ring);
 }
 
 static void intel_overlay_release_old_vid_tail(struct intel_overlay *overlay)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c 
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 4338132..f86275d 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -2012,7 +2012,7 @@ int intel_ring_idle(struct intel_engine_cs *ring)
 
        /* We need to add any requests required to flush the objects and ring */
        if (ring->outstanding_lazy_request) {
-               ret = i915_add_request(ring, NULL);
+               ret = i915_add_request(ring);
                if (ret)
                        return ret;
        }
-- 
1.7.9.5

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