zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/include/drm/drm_mm.h b/ap/os/linux/linux-3.4.x/include/drm/drm_mm.h
new file mode 100644
index 0000000..564b14a
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/include/drm/drm_mm.h
@@ -0,0 +1,188 @@
+/**************************************************************************
+ *
+ * Copyright 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX. USA.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ **************************************************************************/
+/*
+ * Authors:
+ * Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
+ */
+
+#ifndef _DRM_MM_H_
+#define _DRM_MM_H_
+
+/*
+ * Generic range manager structs
+ */
+#include <linux/list.h>
+#ifdef CONFIG_DEBUG_FS
+#include <linux/seq_file.h>
+#endif
+
+struct drm_mm_node {
+ struct list_head node_list;
+ struct list_head hole_stack;
+ unsigned hole_follows : 1;
+ unsigned scanned_block : 1;
+ unsigned scanned_prev_free : 1;
+ unsigned scanned_next_free : 1;
+ unsigned scanned_preceeds_hole : 1;
+ unsigned allocated : 1;
+ unsigned long start;
+ unsigned long size;
+ struct drm_mm *mm;
+};
+
+struct drm_mm {
+ /* List of all memory nodes that immediately precede a free hole. */
+ struct list_head hole_stack;
+ /* head_node.node_list is the list of all memory nodes, ordered
+ * according to the (increasing) start address of the memory node. */
+ struct drm_mm_node head_node;
+ struct list_head unused_nodes;
+ int num_unused;
+ spinlock_t unused_lock;
+ unsigned int scan_check_range : 1;
+ unsigned scan_alignment;
+ unsigned long scan_size;
+ unsigned long scan_hit_start;
+ unsigned scan_hit_size;
+ unsigned scanned_blocks;
+ unsigned long scan_start;
+ unsigned long scan_end;
+ struct drm_mm_node *prev_scanned_node;
+};
+
+static inline bool drm_mm_node_allocated(struct drm_mm_node *node)
+{
+ return node->allocated;
+}
+
+static inline bool drm_mm_initialized(struct drm_mm *mm)
+{
+ return mm->hole_stack.next;
+}
+#define drm_mm_for_each_node(entry, mm) list_for_each_entry(entry, \
+ &(mm)->head_node.node_list, \
+ node_list)
+#define drm_mm_for_each_scanned_node_reverse(entry, n, mm) \
+ for (entry = (mm)->prev_scanned_node, \
+ next = entry ? list_entry(entry->node_list.next, \
+ struct drm_mm_node, node_list) : NULL; \
+ entry != NULL; entry = next, \
+ next = entry ? list_entry(entry->node_list.next, \
+ struct drm_mm_node, node_list) : NULL) \
+/*
+ * Basic range manager support (drm_mm.c)
+ */
+extern struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node,
+ unsigned long size,
+ unsigned alignment,
+ 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 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);
+}
+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, 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,
+ 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,
+ start, end, 1);
+}
+extern int drm_mm_insert_node(struct drm_mm *mm, struct drm_mm_node *node,
+ unsigned long size, unsigned alignment);
+extern int drm_mm_insert_node_in_range(struct drm_mm *mm,
+ struct drm_mm_node *node,
+ unsigned long size, unsigned alignment,
+ unsigned long start, unsigned long end);
+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(const struct drm_mm *mm,
+ unsigned long size,
+ unsigned alignment,
+ int best_match);
+extern 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,
+ int best_match);
+extern int 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)
+{
+ return block->mm;
+}
+
+void drm_mm_init_scan(struct drm_mm *mm, unsigned long size,
+ unsigned alignment);
+void drm_mm_init_scan_with_range(struct drm_mm *mm, unsigned long size,
+ unsigned alignment,
+ unsigned long start,
+ unsigned long end);
+int drm_mm_scan_add_block(struct drm_mm_node *node);
+int drm_mm_scan_remove_block(struct drm_mm_node *node);
+
+extern void drm_mm_debug_table(struct drm_mm *mm, const char *prefix);
+#ifdef CONFIG_DEBUG_FS
+int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm);
+#endif
+
+#endif