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230 lines
4.6 KiB
C
230 lines
4.6 KiB
C
/*++ NDK Version: 0095
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Copyright (c) Alex Ionescu. All rights reserved.
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Header Name:
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mmtypes.h (ARM)
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Abstract:
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ARM Type definitions for the Memory Manager
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Author:
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Alex Ionescu (alex.ionescu@reactos.com) 06-Oct-2004
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--*/
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#ifndef _ARM_MMTYPES_H
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#define _ARM_MMTYPES_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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//
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// Dependencies
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//
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//
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// Page-related Macros
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//
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#ifndef PAGE_SIZE
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#define PAGE_SIZE 0x1000
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#endif
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#define PAGE_SHIFT 12L
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#define MM_ALLOCATION_GRANULARITY 0x10000
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#define MM_ALLOCATION_GRANULARITY_SHIFT 16L
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#define MM_PAGE_FRAME_NUMBER_SIZE 20
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//
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// User space range limit
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//
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#define MI_HIGHEST_USER_ADDRESS (PVOID)0x7FFEFFFF
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//
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// Address of the shared user page
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//
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#define MM_SHARED_USER_DATA_VA 0x7FFE0000
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//
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// Sanity checks for Paging Macros
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//
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#ifdef C_ASSERT
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C_ASSERT(PAGE_SIZE == (1 << PAGE_SHIFT));
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C_ASSERT(MM_ALLOCATION_GRANULARITY == (1 << MM_ALLOCATION_GRANULARITY_SHIFT));
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C_ASSERT(MM_ALLOCATION_GRANULARITY &&
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!(MM_ALLOCATION_GRANULARITY & (MM_ALLOCATION_GRANULARITY - 1)));
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C_ASSERT(MM_ALLOCATION_GRANULARITY >= PAGE_SIZE);
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#endif
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//
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// Page Table Entry Definitions
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//
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typedef struct _HARDWARE_PDE_ARMV6
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{
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ULONG Valid:1; // Only for small pages
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ULONG LargePage:1; // Note, if large then Valid = 0
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG NoExecute:1;
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ULONG Domain:4;
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ULONG Ecc:1;
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ULONG PageFrameNumber:22;
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} HARDWARE_PDE_ARMV6, *PHARDWARE_PDE_ARMV6;
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typedef struct _HARDWARE_LARGE_PTE_ARMV6
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{
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ULONG Valid:1; // Only for small pages
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ULONG LargePage:1; // Note, if large then Valid = 0
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG NoExecute:1;
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ULONG Domain:4;
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ULONG Ecc:1;
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ULONG Sbo:1; // ULONG Accessed:1;?
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ULONG Owner:1;
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ULONG CacheAttributes:3;
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ULONG ReadOnly:1;
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ULONG Shared:1;
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ULONG NonGlobal:1;
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ULONG SuperLagePage:1;
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ULONG Reserved:1;
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ULONG PageFrameNumber:12;
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} HARDWARE_LARGE_PTE_ARMV6, *PHARDWARE_LARGE_PTE_ARMV6;
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typedef struct _HARDWARE_PTE_ARMV6
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{
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ULONG NoExecute:1;
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ULONG Valid:1;
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG Sbo:1; // ULONG Accessed:1;?
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ULONG Owner:1;
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ULONG CacheAttributes:3;
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ULONG ReadOnly:1;
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ULONG Shared:1;
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ULONG NonGlobal:1;
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ULONG PageFrameNumber:20;
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} HARDWARE_PTE_ARMV6, *PHARDWARE_PTE_ARMV6;
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C_ASSERT(sizeof(HARDWARE_PDE_ARMV6) == sizeof(ULONG));
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C_ASSERT(sizeof(HARDWARE_LARGE_PTE_ARMV6) == sizeof(ULONG));
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C_ASSERT(sizeof(HARDWARE_PTE_ARMV6) == sizeof(ULONG));
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typedef struct _MMPTE_SOFTWARE
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{
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ULONG Valid:2;
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ULONG PageFileLow:4;
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ULONG Protection:4;
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ULONG Prototype:1;
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ULONG Transition:1;
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ULONG PageFileHigh:20;
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} MMPTE_SOFTWARE;
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typedef struct _MMPTE_TRANSITION
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{
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ULONG Valid:2;
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG Owner:1;
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ULONG Protection:4;
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ULONG ReadOnly:1;
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ULONG Prototype:1;
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ULONG Transition:1;
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ULONG PageFrameNumber:20;
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} MMPTE_TRANSITION;
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typedef struct _MMPTE_PROTOTYPE
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{
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ULONG Valid:2;
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ULONG ProtoAddressLow:7;
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ULONG ReadOnly:1;
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ULONG Prototype:1;
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ULONG ProtoAddressHigh:21;
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} MMPTE_PROTOTYPE;
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typedef struct _MMPTE_SUBSECTION
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{
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ULONG Valid:2;
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ULONG SubsectionAddressLow:4;
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ULONG Protection:4;
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ULONG Prototype:1;
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ULONG SubsectionAddressHigh:20;
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ULONG WhichPool:1;
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} MMPTE_SUBSECTION;
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typedef struct _MMPTE_LIST
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{
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ULONG Valid:2;
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ULONG OneEntry:1;
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ULONG filler0:8;
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ULONG NextEntry:20;
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ULONG Prototype:1;
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} MMPTE_LIST;
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typedef struct _MMPTE_HARDWARE
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{
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ULONG NoExecute:1;
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ULONG Valid:1;
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG Sbo:1;
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ULONG Owner:1;
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ULONG CacheAttributes:3;
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ULONG ReadOnly:1;
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ULONG Prototype:1;
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ULONG NonGlobal:1;
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ULONG PageFrameNumber:20;
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} MMPTE_HARDWARE, *PMMPTE_HARDWARE;
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//
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// Use the right PTE structure
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//
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#define HARDWARE_PTE HARDWARE_PTE_ARMV6
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#define PHARDWARE_PTE PHARDWARE_PTE_ARMV6
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typedef struct _MMPTE
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{
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union
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{
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ULONG_PTR Long;
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HARDWARE_PTE Flush;
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MMPTE_HARDWARE Hard;
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MMPTE_PROTOTYPE Proto;
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MMPTE_SOFTWARE Soft;
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MMPTE_TRANSITION Trans;
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MMPTE_SUBSECTION Subsect;
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MMPTE_LIST List;
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} u;
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} MMPTE, *PMMPTE;
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typedef union _MMPDE_HARDWARE
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{
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ULONG Valid:1;
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ULONG LargePage:1;
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG NoExecute:1;
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ULONG Domain:4;
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ULONG Ecc:1;
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ULONG PageFrameNumber:22;
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} MMPDE_HARDWARE, *PMMPDE_HARDWARE;
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typedef struct _MMPDE
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{
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union
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{
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MMPDE_HARDWARE Hard;
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ULONG Long;
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} u;
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} MMPDE, *PMMPDE;
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#ifdef __cplusplus
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}; // extern "C"
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#endif
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#endif
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