59 lines
1.1 KiB
C++
59 lines
1.1 KiB
C++
/*
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* \brief Software TLB controls specific for the i.MX31
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* \author Norman Feske
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* \date 2012-08-30
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*/
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/*
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* Copyright (C) 2012 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 _SRC__CORE__IMX31__TLB_H_
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#define _SRC__CORE__IMX31__TLB_H_
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/* Genode includes */
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#include <arm/v6/section_table.h>
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#include <drivers/board.h>
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/**
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* Software TLB-controls
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*/
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class Tlb : public Arm_v6::Section_table
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{
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public:
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/**
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* Placement new
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*/
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void * operator new (Genode::size_t, void * p) { return p; }
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};
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/**
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* Board specific mapping attributes
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*/
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struct Page_flags : Arm::Page_flags { };
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typedef Arm::page_flags_t page_flags_t;
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/**
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* TLB of core
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*
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* Must ensure that core never gets a pagefault.
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*/
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class Core_tlb : public Tlb
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{
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public:
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Core_tlb()
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{
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map_core_area(Genode::Board::RAM_0_BASE, Genode::Board::RAM_0_SIZE, 0);
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map_core_area(Genode::Board::MMIO_0_BASE, Genode::Board::MMIO_0_SIZE, 1);
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}
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};
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#endif /* _SRC__CORE__IMX31__TLB_H_ */
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