125 lines
2.5 KiB
C++
125 lines
2.5 KiB
C++
/*
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* \brief Generic platform
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* \author Norman Feske
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* \author Christian Helmuth
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* \date 2007-09-10
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*/
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/*
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* Copyright (C) 2007-2017 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 Affero General Public License version 3.
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*/
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#ifndef _CORE__INCLUDE__PLATFORM_GENERIC_H_
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#define _CORE__INCLUDE__PLATFORM_GENERIC_H_
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/* Genode includes */
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#include <base/allocator.h>
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#include <base/affinity.h>
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/* core includes */
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#include <rom_fs.h>
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namespace Genode {
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/**
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* Generic platform interface
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*/
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class Platform_generic
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{
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public:
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virtual ~Platform_generic() { }
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/**
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* Allocator of core-local mapped virtual memory
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*/
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virtual Range_allocator &core_mem_alloc() = 0;
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/**
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* Allocator of physical memory
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*/
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virtual Range_allocator &ram_alloc() = 0;
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/**
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* Allocator of free address ranges within core
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*/
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virtual Range_allocator ®ion_alloc() = 0;
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/**
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* I/O memory allocator
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*/
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virtual Range_allocator &io_mem_alloc() = 0;
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/**
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* I/O port allocator
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*/
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virtual Range_allocator &io_port_alloc() = 0;
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/**
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* IRQ allocator
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*/
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virtual Range_allocator &irq_alloc() = 0;
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/**
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* Virtual memory configuration accessors
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*/
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virtual addr_t vm_start() const = 0;
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virtual size_t vm_size() const = 0;
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/**
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* ROM modules
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*/
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virtual Rom_fs &rom_fs() = 0;
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/**
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* Wait for exit condition
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*/
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virtual void wait_for_exit() = 0;
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/**
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* Return true if platform supports direct unmap (no mapping db)
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*/
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virtual bool supports_direct_unmap() const { return false; }
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/**
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* Return number of physical CPUs present in the platform
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*
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* The default implementation returns a single CPU.
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*/
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virtual Affinity::Space affinity_space() const
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{
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return Affinity::Space(1);
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}
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/**
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* Return system-wide maximum number of capabilities
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*/
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virtual size_t max_caps() const = 0;
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/**
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* Return true if the core component relies on a 'Platform_pd' object
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*/
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virtual bool core_needs_platform_pd() const { return true; }
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};
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/**
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* Request pointer to static generic platform interface of core
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*/
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extern Platform_generic &platform();
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class Platform;
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/**
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* Access the platform-specific platform interface of core
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*
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* This function should only be called from platform-specific code.
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*/
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extern Platform &platform_specific();
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}
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#endif /* _CORE__INCLUDE__PLATFORM_GENERIC_H_ */
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