Initial Contribution

msm-2.6.38: tag AU_LINUX_ANDROID_GINGERBREAD.02.03.04.00.142

Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>

include/linux/memory_alloc.h

@@ -0,0 +1,53 @@
+/* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _LINUX_MEMALLOC_H
+#define	_LINUX_MEMALLOC_H
+
+#include <linux/mutex.h>
+#include <linux/genalloc.h>
+#include <linux/rbtree.h>
+
+struct mem_pool {
+	struct mutex pool_mutex;
+	struct gen_pool *gpool;
+	unsigned long paddr;
+	unsigned long size;
+	unsigned long free;
+};
+
+struct alloc {
+	struct rb_node rb_node;
+	void *vaddr;
+	unsigned long paddr;
+	struct mem_pool *mpool;
+	unsigned long len;
+};
+
+struct mem_pool *initialize_memory_pool(unsigned long start,
+	unsigned long size, int mem_type);
+
+void *allocate_contiguous_memory(unsigned long size,
+	int mem_type, unsigned long align, int cached);
+
+unsigned long allocate_contiguous_memory_nomap(unsigned long size,
+	int mem_type, unsigned long align);
+
+void free_contiguous_memory(void *addr);
+void free_contiguous_memory_by_paddr(unsigned long paddr);
+
+unsigned long memory_pool_node_paddr(void *vaddr);
+
+unsigned long memory_pool_node_len(void *vaddr);
+
+int memory_pool_init(void);
+#endif	/* _LINUX_MEMALLOC_H */