67 lines
1.4 KiB
C++
67 lines
1.4 KiB
C++
/*
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* \brief Core-local mapping
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* \author Norman Feske
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* \date 2010-02-15
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*/
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/*
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* Copyright (C) 2010-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _CORE__INCLUDE__MAP_LOCAL_H_
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#define _CORE__INCLUDE__MAP_LOCAL_H_
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/* Genode includes */
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#include <base/printf.h>
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/* core includes */
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#include <util.h>
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namespace Genode {
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/**
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* Map physical pages to core-local virtual address range
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*
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* On Codezero, mappings originate from the physical address space.
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*
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* \param from_phys physical source address
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* \param to_virt core-local destination address
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* \param num_pages number of pages to map
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*
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* \return true on success
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*/
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inline bool map_local(addr_t from_phys, addr_t to_virt, size_t num_pages)
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{
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using namespace Codezero;
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int res = l4_map((void *)from_phys, (void *)to_virt,
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num_pages, MAP_USR_RW, thread_myself());
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if (res < 0) {
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PERR("l4_map phys 0x%lx -> 0x%lx returned %d", from_phys, to_virt, res);
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return false;
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}
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return true;
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}
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inline bool unmap_local(addr_t virt_addr, size_t num_pages)
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{
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using namespace Codezero;
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int res = l4_unmap((void *)virt_addr, num_pages, thread_myself());
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if (res < 0) {
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PERR("l4_unmap returned %d", res);
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return false;
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}
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return true;
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}
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}
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#endif /* _CORE__INCLUDE__MAP_LOCAL_H_ */
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