MemoryRegion.cc

/*
 * 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.
 */
 
#include "pedigree/kernel/processor/MemoryRegion.h"
#include "pedigree/kernel/processor/PhysicalMemoryManager.h"
 
MemoryRegion::MemoryRegion(const char* pName)
    : m_VirtualAddress(0),
      m_PhysicalAddress(0),
      m_Size(0),
      m_pName(pName),
      m_bNonRamMemory(false),
      m_bForced(false),
      m_bPageBacked(false),
      m_bAnonymous(false) {}
 
MemoryRegion::~MemoryRegion() {
  PhysicalMemoryManager::instance().unmapRegion(this);
}
 
void MemoryRegion::free() {
  PhysicalMemoryManager::instance().unmapRegion(this);
}
 
void* MemoryRegion::virtualAddress() const {
  return m_VirtualAddress;
}
 
physical_uintptr_t MemoryRegion::physicalAddress() const {
  return m_PhysicalAddress;
}
 
size_t MemoryRegion::size() const {
  return m_Size;
}
 
const char* MemoryRegion::name() const {
  return m_pName;
}
 
MemoryRegion::operator bool() const {
  return (m_Size != 0);
}
 
bool MemoryRegion::physicalBoundsCheck(physical_uintptr_t address) {
  if (address >= m_PhysicalAddress && address < (m_PhysicalAddress + m_Size))
    return true;
  return false;
}
 
void MemoryRegion::setNonRamMemory(bool b) {
  m_bNonRamMemory = b;
}
 
bool MemoryRegion::getNonRamMemory() {
  return m_bNonRamMemory;
}
 
void MemoryRegion::setForced(bool b) {
  m_bForced = b;
}
 
bool MemoryRegion::getForced() {
  return m_bForced;
}
 
void MemoryRegion::setAnonymous(bool b) {
  m_bAnonymous = b;
}
 
bool MemoryRegion::getAnonymous() const {
  return m_bAnonymous;
}