[RFC v2 08/20] drm/mm: remove unused API

[David Herrmann <dh.herrmann@gmail.com>]

These calls are no longer used. Remove them.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
---
 drivers/gpu/drm/drm_mm.c | 116 ++++++++---------------------------------------
 include/drm/drm_mm.h     |  74 ------------------------------
 2 files changed, 19 insertions(+), 171 deletions(-)

diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index 068abf4..fd3e9f9 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -49,6 +49,19 @@
 
 #define MM_UNUSED_TARGET 4
 
+static struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
+						      unsigned long size,
+						      unsigned alignment,
+						      unsigned long color,
+						      bool best_match);
+static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_mm *mm,
+							unsigned long size,
+							unsigned alignment,
+							unsigned long color,
+							unsigned long start,
+							unsigned long end,
+							bool best_match);
+
 static struct drm_mm_node *drm_mm_kmalloc(struct drm_mm *mm, int atomic)
 {
 	struct drm_mm_node *child;
@@ -74,34 +87,6 @@ static struct drm_mm_node *drm_mm_kmalloc(struct drm_mm *mm, int atomic)
 	return child;
 }
 
-/* drm_mm_pre_get() - pre allocate drm_mm_node structure
- * drm_mm:	memory manager struct we are pre-allocating for
- *
- * Returns 0 on success or -ENOMEM if allocation fails.
- */
-int drm_mm_pre_get(struct drm_mm *mm)
-{
-	struct drm_mm_node *node;
-
-	spin_lock(&mm->unused_lock);
-	while (mm->num_unused < MM_UNUSED_TARGET) {
-		spin_unlock(&mm->unused_lock);
-		node = kzalloc(sizeof(*node), GFP_KERNEL);
-		spin_lock(&mm->unused_lock);
-
-		if (unlikely(node == NULL)) {
-			int ret = (mm->num_unused < 2) ? -ENOMEM : 0;
-			spin_unlock(&mm->unused_lock);
-			return ret;
-		}
-		++mm->num_unused;
-		list_add_tail(&node->node_list, &mm->unused_nodes);
-	}
-	spin_unlock(&mm->unused_lock);
-	return 0;
-}
-EXPORT_SYMBOL(drm_mm_pre_get);
-
 static void drm_mm_insert_helper(struct drm_mm_node *hole_node,
 				 struct drm_mm_node *node,
 				 unsigned long size, unsigned alignment,
@@ -192,24 +177,6 @@ struct drm_mm_node *drm_mm_create_block(struct drm_mm *mm,
 }
 EXPORT_SYMBOL(drm_mm_create_block);
 
-struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *hole_node,
-					     unsigned long size,
-					     unsigned alignment,
-					     unsigned long color,
-					     int atomic)
-{
-	struct drm_mm_node *node;
-
-	node = drm_mm_kmalloc(hole_node->mm, atomic);
-	if (unlikely(node == NULL))
-		return NULL;
-
-	drm_mm_insert_helper(hole_node, node, size, alignment, color);
-
-	return node;
-}
-EXPORT_SYMBOL(drm_mm_get_block_generic);
-
 /**
  * Search for free space and insert a preallocated memory node. Returns
  * -ENOSPC if no suitable free area is available. The preallocated memory node
@@ -283,27 +250,6 @@ static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node,
 	}
 }
 
-struct drm_mm_node *drm_mm_get_block_range_generic(struct drm_mm_node *hole_node,
-						unsigned long size,
-						unsigned alignment,
-						unsigned long color,
-						unsigned long start,
-						unsigned long end,
-						int atomic)
-{
-	struct drm_mm_node *node;
-
-	node = drm_mm_kmalloc(hole_node->mm, atomic);
-	if (unlikely(node == NULL))
-		return NULL;
-
-	drm_mm_insert_helper_range(hole_node, node, size, alignment, color,
-				   start, end);
-
-	return node;
-}
-EXPORT_SYMBOL(drm_mm_get_block_range_generic);
-
 /**
  * Search for free space and insert a preallocated memory node. Returns
  * -ENOSPC if no suitable free area is available. This is for range
@@ -362,28 +308,6 @@ void drm_mm_remove_node(struct drm_mm_node *node)
 }
 EXPORT_SYMBOL(drm_mm_remove_node);
 
-/*
- * Remove a memory node from the allocator and free the allocated struct
- * drm_mm_node. Only to be used on a struct drm_mm_node obtained by one of the
- * drm_mm_get_block functions.
- */
-void drm_mm_put_block(struct drm_mm_node *node)
-{
-
-	struct drm_mm *mm = node->mm;
-
-	drm_mm_remove_node(node);
-
-	spin_lock(&mm->unused_lock);
-	if (mm->num_unused < MM_UNUSED_TARGET) {
-		list_add(&node->node_list, &mm->unused_nodes);
-		++mm->num_unused;
-	} else
-		kfree(node);
-	spin_unlock(&mm->unused_lock);
-}
-EXPORT_SYMBOL(drm_mm_put_block);
-
 static int check_free_hole(unsigned long start, unsigned long end,
 			   unsigned long size, unsigned alignment)
 {
@@ -399,11 +323,11 @@ static int check_free_hole(unsigned long start, unsigned long end,
 	return end >= start + size;
 }
 
-struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
-					       unsigned long size,
-					       unsigned alignment,
-					       unsigned long color,
-					       bool best_match)
+static struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
+						      unsigned long size,
+						      unsigned alignment,
+						      unsigned long color,
+						      bool best_match)
 {
 	struct drm_mm_node *entry;
 	struct drm_mm_node *best;
@@ -437,9 +361,8 @@ struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
 
 	return best;
 }
-EXPORT_SYMBOL(drm_mm_search_free_generic);
 
-struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_mm *mm,
+static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_mm *mm,
 							unsigned long size,
 							unsigned alignment,
 							unsigned long color,
@@ -484,7 +407,6 @@ struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_mm *mm,
 
 	return best;
 }
-EXPORT_SYMBOL(drm_mm_search_free_in_range_generic);
 
 /**
  * Moves an allocation. To be used with embedded struct drm_mm_node.
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index adae5db..b96c58d 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -147,46 +147,6 @@ extern struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node,
 						    unsigned alignment,
 						    unsigned long color,
 						    int atomic);
-extern struct drm_mm_node *drm_mm_get_block_range_generic(
-						struct drm_mm_node *node,
-						unsigned long size,
-						unsigned alignment,
-						unsigned long color,
-						unsigned long start,
-						unsigned long end,
-						int atomic);
-static inline struct drm_mm_node *drm_mm_get_block(struct drm_mm_node *parent,
-						   unsigned long size,
-						   unsigned alignment)
-{
-	return drm_mm_get_block_generic(parent, size, alignment, 0, 0);
-}
-static inline struct drm_mm_node *drm_mm_get_block_atomic(struct drm_mm_node *parent,
-							  unsigned long size,
-							  unsigned alignment)
-{
-	return drm_mm_get_block_generic(parent, size, alignment, 0, 1);
-}
-static inline struct drm_mm_node *drm_mm_get_block_range(
-						struct drm_mm_node *parent,
-						unsigned long size,
-						unsigned alignment,
-						unsigned long start,
-						unsigned long end)
-{
-	return drm_mm_get_block_range_generic(parent, size, alignment, 0,
-					      start, end, 0);
-}
-static inline struct drm_mm_node *drm_mm_get_block_atomic_range(
-						struct drm_mm_node *parent,
-						unsigned long size,
-						unsigned alignment,
-						unsigned long start,
-						unsigned long end)
-{
-	return drm_mm_get_block_range_generic(parent, size, alignment, 0,
-						start, end, 1);
-}
 
 extern int drm_mm_insert_node_generic(struct drm_mm *mm,
 				      struct drm_mm_node *node,
@@ -224,47 +184,13 @@ static inline int drm_mm_insert_node_in_range(struct drm_mm *mm,
 						   0, start, end, best_match);
 }
 
-extern void drm_mm_put_block(struct drm_mm_node *cur);
 extern void drm_mm_remove_node(struct drm_mm_node *node);
 extern void drm_mm_replace_node(struct drm_mm_node *old, struct drm_mm_node *new);
-extern struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm,
-						      unsigned long size,
-						      unsigned alignment,
-						      unsigned long color,
-						      bool best_match);
-extern struct drm_mm_node *drm_mm_search_free_in_range_generic(
-						const struct drm_mm *mm,
-						unsigned long size,
-						unsigned alignment,
-						unsigned long color,
-						unsigned long start,
-						unsigned long end,
-						bool best_match);
-static inline struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm,
-						     unsigned long size,
-						     unsigned alignment,
-						     bool best_match)
-{
-	return drm_mm_search_free_generic(mm,size, alignment, 0, best_match);
-}
-static inline  struct drm_mm_node *drm_mm_search_free_in_range(
-						const struct drm_mm *mm,
-						unsigned long size,
-						unsigned alignment,
-						unsigned long start,
-						unsigned long end,
-						bool best_match)
-{
-	return drm_mm_search_free_in_range_generic(mm, size, alignment, 0,
-						   start, end, best_match);
-}
-
 extern void drm_mm_init(struct drm_mm *mm,
 			unsigned long start,
 			unsigned long size);
 extern void drm_mm_takedown(struct drm_mm *mm);
 extern int drm_mm_clean(struct drm_mm *mm);
-extern int drm_mm_pre_get(struct drm_mm *mm);
 
 static inline struct drm_mm *drm_get_mm(struct drm_mm_node *block)
 {
-- 
1.8.3.2