hosted/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_HOSTED_PROCESSORINFORMATION_H
#define KERNEL_PROCESSOR_HOSTED_PROCESSORINFORMATION_H
#include <config.h>
 
#define _PROCESSOR_INFORMATION_ONLY_WANT_PROCESSORID
#include "pedigree/kernel/processor/ProcessorInformation.h"
#undef _PROCESSOR_INFORMATION_ONLY_WANT_PROCESSORID
 
#include "pedigree/kernel/compiler.h"
#include "pedigree/kernel/process/RcuReadState.h"
#include "pedigree/kernel/processor/types.h"
 
class Thread;
class VirtualAddressSpace;
class PerProcessorScheduler;
class DeviceHardIrqContext;
class SuspendDeviceHardIrqContext;
 
class HostedProcessorInformation {
  friend class ProcessorBase;
  friend class Multiprocessor;
 
 public:
  EXPORTED_PUBLIC VirtualAddressSpace& getVirtualAddressSpace() const;
  void setVirtualAddressSpace(VirtualAddressSpace& virtualAddressSpace);
 
  uintptr_t getKernelStack() const;
  void setKernelStack(uintptr_t stack);
  EXPORTED_PUBLIC Thread* getCurrentThread() const;
  void setCurrentThread(Thread* pThread);
  PerProcessorScheduler& getScheduler();
 
  RcuReadState& rcuState() {
    return m_RcuState;
  }
 
  ProcessorId processorId() const {
    return m_ProcessorId;
  }
 
 protected:
  HostedProcessorInformation(ProcessorId processorId, uint8_t apicId = 0);
  virtual ~HostedProcessorInformation();
 
 private:
  friend class DeviceHardIrqContext;
  friend class SuspendDeviceHardIrqContext;
 
  HostedProcessorInformation();
  HostedProcessorInformation(const HostedProcessorInformation&);
  HostedProcessorInformation& operator=(const HostedProcessorInformation&);
 
  ProcessorId m_ProcessorId;
  VirtualAddressSpace* m_VirtualAddressSpace;
  Thread* m_pCurrentThread;
  PerProcessorScheduler* m_Scheduler;
  uintptr_t m_KernelStack;
  uintptr_t m_HostedExecutionThreadId;
  size_t m_DeviceHardIrqDepth;
  size_t m_HostedSignalFrameDepth;
  RcuReadState m_RcuState;
};
 
#endif