117 lines
3.0 KiB
C
117 lines
3.0 KiB
C
/**
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* PROJECT: ExectOS
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* COPYRIGHT: See COPYING.md in the top level directory
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* FILE: sdk/xtdk/mmtypes.h
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* DESCRIPTION: Memory management data structures
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* DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org>
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* Aiken Harris <harraiken91@gmail.com>
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*/
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#ifndef __XTDK_MMTYPES_H
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#define __XTDK_MMTYPES_H
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#include <xtbase.h>
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#include ARCH_HEADER(xtstruct.h)
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/* Number of hyper space pages */
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#define MM_HYPERSPACE_PAGE_COUNT 255
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/* Number of paging colors */
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#define MM_PAGING_COLORS 64
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/* PTE frame mask definition */
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#define MM_PFN_PTE_FRAME (((ULONG_PTR)1 << MM_PTE_FRAME_BITS) - 1)
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/* Number of reserved zeroed PTEs */
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#define MM_RESERVED_ZERO_PTES 32
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/* Memory manager page lists */
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typedef enum _MMPAGELISTS
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{
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ZeroedPageList = 0,
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FreePageList = 1,
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StandbyPageList = 2,
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ModifiedPageList = 3,
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ModifiedNoWritePageList = 4,
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BadPageList = 5,
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ActiveAndValid = 6,
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TransitionPage = 7
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} MMPAGELISTS, *PMMPAGELISTS;
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/* Page cache attributes */
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typedef enum _MMPFN_CACHE_ATTRIBUTE
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{
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PfnNonCached,
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PfnCached,
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PfnWriteCombined,
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PfnNotMapped
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} MMPFN_CACHE_ATTRIBUTE, *PMMPFN_CACHE_ATTRIBUTE;
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/* Page table pool types */
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typedef enum _MMSYSTEM_PTE_POOL_TYPE
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{
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SystemPteSpace,
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NonPagedPoolExpansion,
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MaximumPtePoolTypes
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} MMSYSTEM_PTE_POOL_TYPE, *PMMSYSTEM_PTE_POOL_TYPE;
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/* Page map routines structure definition */
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typedef CONST STRUCT _CMMPAGEMAP_ROUTINES
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{
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VOID (XTAPI *ClearPte)(PHARDWARE_PTE PtePointer);
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BOOLEAN (XTAPI *PteValid)(PHARDWARE_PTE PtePointer);
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VOID (XTAPI *SetPteCaching)(PHARDWARE_PTE PtePointer, BOOLEAN CacheDisable, BOOLEAN WriteThrough);
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VOID (XTAPI *SetPte)(PHARDWARE_PTE PtePointer, PFN_NUMBER PageFrameNumber, BOOLEAN Writable);
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} CMMPAGEMAP_ROUTINES, *PCMMPAGEMAP_ROUTINES;
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/* Color tables structure definition */
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typedef struct _MMCOLOR_TABLES
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{
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ULONG_PTR Flink;
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PVOID Blink;
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ULONG_PTR Count;
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} MMCOLOR_TABLES, *PMMCOLOR_TABLES;
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/* Memory layout structure definition */
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typedef struct _MMMEMORY_LAYOUT
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{
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PMMPFN PfnDatabaseAddress;
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PVOID SelfMapAddress;
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PVOID HyperSpaceStart;
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PVOID HyperSpaceEnd;
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PVOID NonPagedPoolStart;
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PVOID NonPagedPoolEnd;
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PVOID PagedPoolStart;
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PVOID PagedPoolEnd;
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PVOID SystemSpaceStart;
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PVOID SystemSpaceEnd;
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PVOID UserSpaceEnd;
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} MMMEMORY_LAYOUT, *PMMMEMORY_LAYOUT;
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/* Page Frame Entry structure definition */
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typedef struct _MMPFNENTRY
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{
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USHORT Modified:1;
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USHORT ReadInProgress:1;
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USHORT WriteInProgress:1;
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USHORT PrototypePte:1;
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USHORT PageColor:4;
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USHORT PageLocation:3;
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USHORT RemovalRequested:1;
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USHORT CacheAttribute:2;
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USHORT Rom:1;
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USHORT ParityError:1;
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} MMPFNENTRY, *PMMPFNENTRY;
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/* Page Frame List structure definition */
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typedef struct _MMPFNLIST
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{
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PFN_NUMBER Total;
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MMPAGELISTS ListName;
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PFN_NUMBER Flink;
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PFN_NUMBER Blink;
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} MMPFNLIST, *PMMPFNLIST;
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#endif /* __XTDK_MMTYPES_H */
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