/*
 * Copyright (C) 2010-2014, 2016 ARM Limited. All rights reserved.
 * 
 * This program is free software and is provided to you under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
 * 
 * A copy of the licence is included with the program, and can also be obtained from Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#ifndef __UMP_KERNEL_TYPES_H__
#define __UMP_KERNEL_TYPES_H__

#include "ump_kernel_interface.h"
#include "mali_osk.h"

#include <linux/rbtree.h>
#ifdef CONFIG_DMA_SHARED_BUFFER
#include <linux/dma-buf.h>
#endif

typedef enum {
	UMP_USED_BY_CPU = 0,
	UMP_USED_BY_MALI = 1,
	UMP_USED_BY_UNKNOWN_DEVICE = 100,
} ump_hw_usage;

typedef enum {
	UMP_NOT_LOCKED = 0,
	UMP_READ = 1,
	UMP_READ_WRITE = 3,
} ump_lock_usage;

/*
 * This struct is what is "behind" a ump_dd_handle
 */
typedef struct ump_dd_mem {
	struct rb_node node;
	ump_secure_id secure_id;
	_mali_osk_atomic_t ref_count;
	unsigned long size_bytes;
	unsigned long nr_blocks;
	ump_dd_physical_block *block_array;
	void (*release_func)(void *ctx, struct ump_dd_mem *descriptor);
	void *ctx;
	void *backend_info;
	int is_cached;
	ump_hw_usage hw_device;
	ump_lock_usage lock_usage;
#ifdef CONFIG_DMA_SHARED_BUFFER
	struct dma_buf_attachment *import_attach;
	struct sg_table *sgt;
#endif
} ump_dd_mem;



#endif /* __UMP_KERNEL_TYPES_H__ */
