kernel/core/processor/mips_common/PhysicalMemoryManager.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef KERNEL_PROCESSOR_MIPS_COMMON_PHYSICALMEMORYMANAGER_H
#define KERNEL_PROCESSOR_MIPS_COMMON_PHYSICALMEMORYMANAGER_H

#include "pedigree/kernel/processor/PhysicalMemoryManager.h"

class MipsCommonPhysicalMemoryManager : public PhysicalMemoryManager
{
  public:
    inline static MipsCommonPhysicalMemoryManager &instance()
    {
        return m_Instance;
    }

    //
    // PhysicalMemoryManager Interface
    //
    virtual physical_uintptr_t allocatePage();
    virtual void freePage(physical_uintptr_t page);
    virtual bool allocateRegion(
        MemoryRegion &Region, size_t cPages, size_t pageConstraints,
        size_t Flags, physical_uintptr_t start = -1);

  protected:
    MipsCommonPhysicalMemoryManager();
    virtual ~MipsCommonPhysicalMemoryManager();

  private:
    MipsCommonPhysicalMemoryManager(const MipsCommonPhysicalMemoryManager &);
    MipsCommonPhysicalMemoryManager &
    operator=(const MipsCommonPhysicalMemoryManager &);

    uintptr_t m_NextPage;

    static MipsCommonPhysicalMemoryManager m_Instance;
};

#endif