mali/linux/mali_memory_cow.h

/*
 * Copyright (C) 2013-2016 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 __MALI_MEMORY_COW_H__
#define __MALI_MEMORY_COW_H__

#include "mali_osk.h"
#include "mali_session.h"
#include "mali_memory_types.h"

int mali_mem_cow_cpu_map(mali_mem_backend *mem_bkend, struct vm_area_struct *vma);
_mali_osk_errcode_t mali_mem_cow_cpu_map_pages_locked(mali_mem_backend *mem_bkend,
		struct vm_area_struct *vma,
		unsigned long vaddr,
		int num);

_mali_osk_errcode_t mali_memory_do_cow(mali_mem_backend *target_bk,
				       u32 target_offset,
				       u32 target_size,
				       mali_mem_backend *backend,
				       u32 range_start,
				       u32 range_size);

_mali_osk_errcode_t mali_memory_cow_modify_range(mali_mem_backend *backend,
		u32 range_start,
		u32 range_size);

_mali_osk_errcode_t mali_memory_cow_os_memory(mali_mem_backend *target_bk,
		u32 target_offset,
		u32 target_size,
		mali_mem_backend *backend,
		u32 range_start,
		u32 range_size);

void _mali_mem_cow_copy_page(mali_page_node *src_node, mali_page_node *dst_node);

int mali_mem_cow_mali_map(mali_mem_backend *mem_bkend, u32 range_start, u32 range_size);
u32 mali_mem_cow_release(mali_mem_backend *mem_bkend, mali_bool is_mali_mapped);
_mali_osk_errcode_t mali_mem_cow_allocate_on_demand(mali_mem_backend *mem_bkend, u32 offset_page);
#endif