/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */


#ifndef _UAPI_LINUX_ION_H
#define _UAPI_LINUX_ION_H

#include <linux/ioctl.h>
#include <linux/types.h>


enum ion_heap_type {
	ION_HEAP_TYPE_SYSTEM = 0,
	ION_HEAP_TYPE_DMA = 2,
	
	ION_HEAP_TYPE_CUSTOM = 16,
	ION_HEAP_TYPE_MAX = 31,
};


enum ion_heap_id {
	ION_HEAP_SYSTEM = (1 << ION_HEAP_TYPE_SYSTEM),
	ION_HEAP_DMA_START = (ION_HEAP_SYSTEM << 1),
	ION_HEAP_DMA_END = (ION_HEAP_DMA_START << 7),
	ION_HEAP_CUSTOM_START = (ION_HEAP_DMA_END << 1),
	ION_HEAP_CUSTOM_END = (ION_HEAP_CUSTOM_START << 22),
};

#define ION_NUM_MAX_HEAPS	(32)




#define ION_FLAG_CACHED		1




struct ion_allocation_data {
	__u64 len;
	__u32 heap_id_mask;
	__u32 flags;
	__u32 fd;
	__u32 unused;
};

#define MAX_HEAP_NAME			32


struct ion_heap_data {
	char name[MAX_HEAP_NAME];
	__u32 type;
	__u32 heap_id;
	__u32 reserved0;
	__u32 reserved1;
	__u32 reserved2;
};


struct ion_heap_query {
	__u32 cnt; 
	__u32 reserved0; 
	__u64 heaps; 
	__u32 reserved1;
	__u32 reserved2;
};

#define ION_IOC_MAGIC		'I'


#define ION_IOC_ALLOC		_IOWR(ION_IOC_MAGIC, 0, \
				      struct ion_allocation_data)


#define ION_IOC_HEAP_QUERY     _IOWR(ION_IOC_MAGIC, 8, \
					struct ion_heap_query)


#define ION_IOC_ABI_VERSION    _IOR(ION_IOC_MAGIC, 9, \
					__u32)
#endif 
