* Copyright 2010, Ingo Weinhold, ingo_weinhold@gmx.de.
* Distributed under the terms of the MIT License.
*/
#ifndef KERNEL_ARCH_M68K_M68K_VM_TRANSLATION_MAP_H
#define KERNEL_ARCH_M68K_M68K_VM_TRANSLATION_MAP_H
#include <vm/VMTranslationMap.h>
#define PAGE_INVALIDATE_CACHE_SIZE 64
struct M68KPagingStructures;
class TranslationMapPhysicalPageMapper;
struct M68KVMTranslationMap : VMTranslationMap {
M68KVMTranslationMap();
virtual ~M68KVMTranslationMap();
status_t Init(bool kernel);
virtual bool Lock();
virtual void Unlock();
virtual addr_t MappedSize() const;
virtual void Flush();
virtual M68KPagingStructures* PagingStructures() const = 0;
inline void InvalidatePage(addr_t address);
protected:
TranslationMapPhysicalPageMapper* fPageMapper;
int fInvalidPagesCount;
addr_t fInvalidPages[PAGE_INVALIDATE_CACHE_SIZE];
bool fIsKernelMap;
};
void
M68KVMTranslationMap::InvalidatePage(addr_t address)
{
if (fInvalidPagesCount < PAGE_INVALIDATE_CACHE_SIZE)
fInvalidPages[fInvalidPagesCount] = address;
fInvalidPagesCount++;
}
#endif
