ppc_common/ProcessorInformation.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_PROCESSORINFORMATION_H
#define KERNEL_PROCESSOR_MIPS_COMMON_PROCESSORINFORMATION_H

#include "pedigree/kernel/process/Thread.h"
#include "pedigree/kernel/processor/VirtualAddressSpace.h"
#include "pedigree/kernel/processor/types.h"

class PPCCommonProcessorInformation
{
    friend class Processor;

  public:
    inline VirtualAddressSpace &getVirtualAddressSpace() const
    {
        return *m_VirtualAddressSpace;
    }
    inline void setVirtualAddressSpace(VirtualAddressSpace &virtualAddressSpace)
    {
        m_VirtualAddressSpace = &virtualAddressSpace;
    }

    inline uintptr_t getKernelStack() const;
    inline void setKernelStack(uintptr_t stack);
    inline Thread *getCurrentThread() const
    {
        return m_pCurrentThread;
    }
    inline void setCurrentThread(Thread *pThread)
    {
        m_pCurrentThread = pThread;
    }

  protected:
    inline PPCCommonProcessorInformation(ProcessorId processorId)
        : m_ProcessorId(processorId),
          m_VirtualAddressSpace(&VirtualAddressSpace::getKernelAddressSpace()),
          m_pCurrentThread(0)
    {
    }
    inline virtual ~PPCCommonProcessorInformation()
    {
    }

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

    ProcessorId m_ProcessorId;
    VirtualAddressSpace *m_VirtualAddressSpace;
    Thread *m_pCurrentThread;
};

extern "C" uint32_t kernel_stack;
//
// Part of the implementation
//
uintptr_t PPCCommonProcessorInformation::getKernelStack() const
{
    return kernel_stack;
}
void PPCCommonProcessorInformation::setKernelStack(uintptr_t stack)
{
    kernel_stack = stack;
}

#endif