genode/os/include/dde_kit/pgtab.h
2013-01-10 21:44:47 +01:00

73 lines
1.7 KiB
C

/*
* \brief Virtual page-table facility
* \author Christian Helmuth
* \date 2008-08-15
*/
/*
* Copyright (C) 2008-2013 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _INCLUDE__DDE_KIT__PGTAB_H_
#define _INCLUDE__DDE_KIT__PGTAB_H_
#include <dde_kit/types.h>
/**
* Set virtual->physical mapping for VM pages
*
* \param virt virtual start address for region
* \param phys physical start address for region
* \param pages number of pages in region
*/
void dde_kit_pgtab_set_region(void *virt, dde_kit_addr_t phys, unsigned pages);
/**
* Set virtual->physical mapping for VM region
*
* \param virt virtual start address for region
* \param phys physical start address for region
* \param size number of bytes in region
*/
void dde_kit_pgtab_set_region_with_size(void *virt, dde_kit_addr_t phys,
dde_kit_size_t size);
/**
* Clear virtual->physical mapping for VM region
*
* \param virt virtual start address for region
*/
void dde_kit_pgtab_clear_region(void *virt);
/**
* Get physical address for virtual address
*
* \param virt virtual address
*
* \return physical address
*/
dde_kit_addr_t dde_kit_pgtab_get_physaddr(void *virt);
/**
* Get virtual address for physical address
*
* \param phys physical address
*
* \return virtual address
*/
dde_kit_addr_t dde_kit_pgtab_get_virtaddr(dde_kit_addr_t phys);
/**
* Get size of VM region.
*
* \param virt virtual address
*
* \return VM region size (in bytes)
*/
dde_kit_size_t dde_kit_pgtab_get_size(void *virt);
#endif /* _INCLUDE__DDE_KIT__PGTAB_H_ */