169 lines
4.2 KiB
C++
169 lines
4.2 KiB
C++
/*
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* \brief Fiasco.OC platform
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* \author Christian Helmuth
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* \author Norman Feske
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* \author Stefan Kalkowski
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* \date 2007-09-10
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*/
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/*
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* Copyright (C) 2007-2013 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__PLATFORM_H_
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#define _CORE__INCLUDE__PLATFORM_H_
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/* Genode includes */
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#include <base/sync_allocator.h>
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#include <base/allocator_avl.h>
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#include <base/pager.h>
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/* Core includes */
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#include <cap_id_alloc.h>
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#include <platform_generic.h>
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#include <platform_thread.h>
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#include <platform_pd.h>
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#include <multiboot.h>
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namespace Genode {
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class Platform : public Platform_generic
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{
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private:
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/**
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* Pager object representing the pager of core namely sigma0
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*/
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struct Sigma0 : public Pager_object
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{
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/**
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* Constructor
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*/
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Sigma0(Cap_index*);
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int pager(Ipc_pager &ps) { /* never called */ return -1; }
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};
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/*
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* Shortcut for the type of allocator instances for physical resources
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*/
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typedef Synchronized_range_allocator<Allocator_avl> Phys_allocator;
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Platform_pd *_core_pd; /* core protection domain object */
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Phys_allocator _ram_alloc; /* RAM allocator */
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Phys_allocator _io_mem_alloc; /* MMIO allocator */
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Phys_allocator _io_port_alloc; /* I/O port allocator */
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Phys_allocator _irq_alloc; /* IRQ allocator */
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Phys_allocator _region_alloc; /* virtual memory allocator for core */
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Cap_id_allocator _cap_id_alloc; /* capability id allocator */
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Multiboot_info _mb_info; /* multiboot information */
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Rom_fs _rom_fs; /* ROM file system */
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Rom_module _kip_rom; /* ROM module for Fiasco KIP */
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Sigma0 _sigma0;
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addr_t _vm_start; /* begin of virtual memory */
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size_t _vm_size; /* size of virtual memory */
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/*
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* We do not export any boot module loaded before FIRST_ROM.
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*/
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enum { FIRST_ROM = 3 };
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/**
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* Setup base resources
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*
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* - Map and provide KIP as ROM module
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* - Initializes region allocator
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* - Initializes multiboot info structure
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*/
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void _setup_basics();
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/**
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* Setup RAM, IO_MEM, and region allocators
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*/
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void _setup_mem_alloc();
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/**
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* Setup I/O port space allocator
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*/
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void _setup_io_port_alloc();
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/**
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* Setup IRQ allocator
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*/
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void _setup_irq_alloc();
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/**
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* Parse multi-boot information and update ROM database
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*/
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void _setup_rom();
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/**
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* Setup pager for core-internal threads
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*/
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void _setup_core_pager();
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public:
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/**
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* Core pager thread that handles core-internal page-faults
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*/
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struct Core_pager : public Platform_thread, public Pager_object
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{
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/**
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* Constructor
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*/
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Core_pager(Platform_pd *core_pd, Sigma0*);
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int pager(Ipc_pager &ps) { /* never called */ return -1; }
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};
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/**
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* Return singleton instance of core pager object
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*/
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Core_pager *core_pager();
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/**
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* Set interrupt trigger/polarity (e.g., level or edge, high or low)
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*/
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static void setup_irq_mode(unsigned irq_number, unsigned trigger,
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unsigned polarity);
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/**
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* Constructor
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*/
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Platform();
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/**
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* Accessor for core pd object
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*/
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Platform_pd *core_pd() { return _core_pd; }
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/********************************
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** Generic platform interface **
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********************************/
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Allocator *core_mem_alloc() { return &_ram_alloc; }
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Range_allocator *ram_alloc() { return &_ram_alloc; }
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Range_allocator *io_mem_alloc() { return &_io_mem_alloc; }
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Range_allocator *io_port_alloc() { return &_io_port_alloc; }
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Range_allocator *irq_alloc() { return &_irq_alloc; }
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Range_allocator *region_alloc() { return &_region_alloc; }
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Cap_id_allocator *cap_id_alloc() { return &_cap_id_alloc; }
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addr_t vm_start() const { return _vm_start; }
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size_t vm_size() const { return _vm_size; }
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Rom_fs *rom_fs() { return &_rom_fs; }
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Affinity::Space affinity_space() const;
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void wait_for_exit();
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};
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}
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#endif /* _CORE__INCLUDE__PLATFORM_H_ */
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