54 lines
1.8 KiB
C
Executable File
54 lines
1.8 KiB
C
Executable File
/*
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* Copyright (C) 2012-2017, Samsung Electronics Co., Ltd.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __TZ_MEM_H__
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#define __TZ_MEM_H__
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#include <linux/mm.h>
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#include <linux/pid.h>
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#include <tz_cred.h>
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typedef void (*tzdev_mem_free_func_t)(void *);
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struct tzdev_mem_reg {
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struct pid *pid;
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unsigned long nr_pages;
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struct page **pages;
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tzdev_mem_free_func_t free_func;
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void *free_data;
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unsigned int in_release;
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struct tz_cred cred;
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};
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int tzdev_mem_init(void);
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void tzdev_mem_fini(void);
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int tzdev_mem_register_user(void *ptr, unsigned long size, unsigned int write);
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int tzdev_mem_release_user(unsigned int id);
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int tzdev_mem_register(void *ptr, unsigned long size, unsigned int write,
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tzdev_mem_free_func_t free_func, void *free_data);
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int tzdev_mem_release(unsigned int id);
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int tzdev_get_user_pages(struct task_struct *task, struct mm_struct *mm,
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unsigned long start, unsigned long nr_pages, int write,
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int force, struct page **pages, struct vm_area_struct **vmas);
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int tzdev_migrate_pages(struct task_struct *task, struct mm_struct *mm,
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unsigned long start, unsigned long nr_pages, int write,
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int force, struct page **pages);
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void tzdev_put_user_pages(struct page **pages, unsigned long nr_pages);
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void tzdev_decrease_pinned_vm(struct mm_struct *mm, unsigned long nr_pages);
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void tzdev_mem_release_panic_handler(void);
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#endif /* __TZ_MEM_H__ */
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