[PATCH 6/6] drm/i915: Split i915_gem_flush_ring() into seperate invalidate/flush funcs

[Chris Wilson <chris@chris-wilson.co.uk>]

By moving the function to intel_ringbuffer and currying the appropriate
parameter, hopefully we make the callsites easier to read and
understand.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_drv.h            |    3 ---
 drivers/gpu/drm/i915/i915_gem.c            |   21 +--------------------
 drivers/gpu/drm/i915/i915_gem_execbuffer.c |    2 +-
 drivers/gpu/drm/i915/intel_ringbuffer.c    |   14 ++++++++++++++
 drivers/gpu/drm/i915/intel_ringbuffer.h    |    2 ++
 5 files changed, 18 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 7871760..ee037e2 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1261,9 +1261,6 @@ int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
 			struct drm_file *file_priv);
 void i915_gem_load(struct drm_device *dev);
 int i915_gem_init_object(struct drm_gem_object *obj);
-int __must_check i915_gem_flush_ring(struct intel_ring_buffer *ring,
-				     uint32_t invalidate_domains,
-				     uint32_t flush_domains);
 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
 						  size_t size);
 void i915_gem_free_object(struct drm_gem_object *obj);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index b22bfc8..05635ed 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1549,7 +1549,7 @@ i915_add_request(struct intel_ring_buffer *ring,
 	 * what.
 	 */
 	if (ring->gpu_caches_dirty) {
-		ret = i915_gem_flush_ring(ring, 0, I915_GEM_GPU_DOMAINS);
+		ret = intel_ring_flush_all_caches(ring);
 		if (ret)
 			return ret;
 
@@ -2236,25 +2236,6 @@ i915_gem_object_unbind(struct drm_i915_gem_object *obj)
 	return ret;
 }
 
-int
-i915_gem_flush_ring(struct intel_ring_buffer *ring,
-		    uint32_t invalidate_domains,
-		    uint32_t flush_domains)
-{
-	int ret;
-
-	if (((invalidate_domains | flush_domains) & I915_GEM_GPU_DOMAINS) == 0)
-		return 0;
-
-	trace_i915_gem_ring_flush(ring, invalidate_domains, flush_domains);
-
-	ret = ring->flush(ring, invalidate_domains, flush_domains);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
 static int i915_ring_idle(struct intel_ring_buffer *ring)
 {
 	if (list_empty(&ring->active_list))
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index ca48978..101abc7 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -886,7 +886,7 @@ i915_gem_execbuffer_move_to_gpu(struct intel_ring_buffer *ring,
 	}
 
 	/* Unconditionally invalidate gpu caches. */
-	ret = i915_gem_flush_ring(ring, I915_GEM_GPU_DOMAINS, 0);
+	ret = intel_ring_invalidate_all_caches(ring);
 	if (ret)
 		return ret;
 
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 7c166ff..ec57ee2 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1563,3 +1563,17 @@ int intel_init_blt_ring_buffer(struct drm_device *dev)
 
 	return intel_init_ring_buffer(dev, ring);
 }
+
+int
+intel_ring_flush_all_caches(struct intel_ring_buffer *ring)
+{
+	trace_i915_gem_ring_flush(ring, 0, I915_GEM_GPU_DOMAINS);
+	return ring->flush(ring, 0, I915_GEM_GPU_DOMAINS);
+}
+
+int
+intel_ring_invalidate_all_caches(struct intel_ring_buffer *ring)
+{
+	trace_i915_gem_ring_flush(ring, I915_GEM_GPU_DOMAINS, 0);
+	return ring->flush(ring, I915_GEM_GPU_DOMAINS, 0);
+}
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 7986f30..8b2b92e 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -195,6 +195,8 @@ static inline void intel_ring_emit(struct intel_ring_buffer *ring,
 void intel_ring_advance(struct intel_ring_buffer *ring);
 
 u32 intel_ring_get_seqno(struct intel_ring_buffer *ring);
+int intel_ring_flush_all_caches(struct intel_ring_buffer *ring);
+int intel_ring_invalidate_all_caches(struct intel_ring_buffer *ring);
 
 int intel_init_render_ring_buffer(struct drm_device *dev);
 int intel_init_bsd_ring_buffer(struct drm_device *dev);
-- 
1.7.10.4