src/system/kernel/arch/m68k/paging/M68KPagingMethod.h

   1 /*
   2  * Copyright 2010, Ingo Weinhold, ingo_weinhold@gmx.de.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef KERNEL_ARCH_M68K_PAGING_M68K_PAGING_METHOD_H
   6 #define KERNEL_ARCH_M68K_PAGING_M68K_PAGING_METHOD_H
   7
   8
   9 #include <SupportDefs.h>
  10
  11
  12 struct kernel_args;
  13 struct VMPhysicalPageMapper;
  14 struct VMTranslationMap;
  15
  16
  17 class M68KPagingMethod {
  18 public:
  19         virtual                                         ~M68KPagingMethod();
  20
  21         virtual status_t                        Init(kernel_args* args,
  22                                                                         VMPhysicalPageMapper** _physicalPageMapper)
  23                                                                                 = 0;
  24         virtual status_t                        InitPostArea(kernel_args* args) = 0;
  25
  26         virtual status_t                        CreateTranslationMap(bool kernel,
  27                                                                         VMTranslationMap** _map) = 0;
  28
  29         virtual status_t                        MapEarly(kernel_args* args,
  30                                                                         addr_t virtualAddress,
  31                                                                         phys_addr_t physicalAddress,
  32                                                                         uint8 attributes,
  33                                                                         phys_addr_t (*get_free_page)(kernel_args*))
  34                                                                                 = 0;
  35
  36         virtual bool                            IsKernelPageAccessible(addr_t virtualAddress,
  37                                                                         uint32 protection) = 0;
  38
  39         virtual void                            SetPageRoot(uint32 pageRoot) = 0;
  40 };
  41
  42
  43 extern M68KPagingMethod* gM68KPagingMethod;
  44
  45
  46 #endif  // KERNEL_ARCH_M68K_PAGING_M68K_PAGING_METHOD_H