[PATCH 05/50] drm/i915: Extract ringbuffer destroy, make destroy & alloc outside accesible

[oscar.mateo@xxxxxxxxx]

From: Oscar Mateo <oscar.mateo@xxxxxxxxx>

No functional changes.

Signed-off-by: Oscar Mateo <oscar.mateo@xxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 21 ++++++++++++++-------
 drivers/gpu/drm/i915/intel_ringbuffer.h |  3 +++
 2 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index fc737c8..5d61923 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1368,7 +1368,18 @@ static int init_phys_status_page(struct intel_ring_buffer *ring)
 	return 0;
 }
 
-static int allocate_ring_buffer(struct intel_ring_buffer *ring)
+void intel_destroy_ring_buffer(struct intel_ring_buffer *ring)
+{
+	if (!ring->obj)
+		return;
+
+	iounmap(ring->virtual_start);
+	i915_gem_object_ggtt_unpin(ring->obj);
+	drm_gem_object_unreference(&ring->obj->base);
+	ring->obj = NULL;
+}
+
+int intel_allocate_ring_buffer(struct intel_ring_buffer *ring)
 {
 	struct drm_device *dev = ring->dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
@@ -1435,7 +1446,7 @@ static int intel_init_ring_buffer(struct drm_device *dev,
 			return ret;
 	}
 
-	ret = allocate_ring_buffer(ring);
+	ret = intel_allocate_ring_buffer(ring);
 	if (ret) {
 		DRM_ERROR("Failed to allocate ringbuffer %s: %d\n", ring->name, ret);
 		return ret;
@@ -1464,11 +1475,7 @@ void intel_cleanup_ring_buffer(struct intel_ring_buffer *ring)
 	intel_stop_ring_buffer(ring);
 	WARN_ON((I915_READ_MODE(ring) & MODE_IDLE) == 0);
 
-	iounmap(ring->virtual_start);
-
-	i915_gem_object_ggtt_unpin(ring->obj);
-	drm_gem_object_unreference(&ring->obj->base);
-	ring->obj = NULL;
+	intel_destroy_ring_buffer(ring);
 	ring->preallocated_lazy_request = NULL;
 	ring->outstanding_lazy_seqno = 0;
 
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index b1bf767..680e451 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -307,6 +307,9 @@ int intel_init_vebox_ring_buffer(struct drm_device *dev);
 u64 intel_ring_get_active_head(struct intel_ring_buffer *ring);
 void intel_ring_setup_status_page(struct intel_ring_buffer *ring);
 
+void intel_destroy_ring_buffer(struct intel_ring_buffer *ring);
+int intel_allocate_ring_buffer(struct intel_ring_buffer *ring);
+
 static inline u32 intel_ring_get_tail(struct intel_ring_buffer *ring)
 {
 	return ring->tail;
-- 
1.9.0

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