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278 lines
6.3 KiB
C
278 lines
6.3 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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//
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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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#define PAGE_SIZE 0x1000
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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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//
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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_PTE_ARM
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{
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union
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{
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union
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{
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struct
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{
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ULONG Type:2;
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ULONG Unused:30;
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} Fault;
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struct
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{
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ULONG Type:2;
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ULONG Ignored:2;
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ULONG Reserved:1;
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ULONG Domain:4;
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ULONG Ignored1:1;
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ULONG BaseAddress:22;
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} Coarse;
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struct
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{
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ULONG Type:2;
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG Reserved:1;
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ULONG Domain:4;
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ULONG Ignored:1;
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ULONG Access:2;
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ULONG Ignored1:8;
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ULONG BaseAddress:12;
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} Section;
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struct
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{
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ULONG Type:2;
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ULONG Reserved:3;
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ULONG Domain:4;
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ULONG Ignored:3;
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ULONG BaseAddress:20;
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} Fine;
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} L1;
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union
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{
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struct
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{
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ULONG Type:2;
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ULONG Unused:30;
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} Fault;
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struct
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{
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ULONG Type:2;
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG Access0:2;
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ULONG Access1:2;
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ULONG Access2:2;
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ULONG Access3:2;
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ULONG Ignored:4;
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ULONG BaseAddress:16;
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} Large;
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struct
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{
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ULONG Type:2;
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG Access0:2;
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ULONG Access1:2;
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ULONG Access2:2;
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ULONG Access3:2;
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ULONG BaseAddress:20;
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} Small;
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struct
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{
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ULONG Type:2;
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG Access0:2;
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ULONG Ignored:4;
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ULONG BaseAddress:22;
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} Tiny;
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} L2;
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ULONG AsUlong;
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};
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} HARDWARE_PTE_ARM, *PHARDWARE_PTE_ARM;
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typedef struct _MMPTE_SOFTWARE
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{
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ULONG Valid:1;
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ULONG PageFileLow:4;
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ULONG Protection:5;
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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:1;
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ULONG Write:1;
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ULONG Owner:1;
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ULONG WriteThrough:1;
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ULONG CacheDisable:1;
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ULONG Protection:5;
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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:1;
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ULONG ProtoAddressLow:7;
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ULONG ReadOnly:1;
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ULONG WhichPool: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:1;
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ULONG SubsectionAddressLow:4;
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ULONG Protection:5;
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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:1;
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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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ULONG filler1:1;
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} MMPTE_LIST;
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typedef struct _MMPTE_HARDWARE
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{
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union
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{
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union
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{
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struct
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{
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ULONG Type:2;
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ULONG Unused:30;
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} Fault;
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struct
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{
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ULONG Type:2;
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ULONG Ignored:2;
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ULONG Reserved:1;
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ULONG Domain:4;
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ULONG Ignored1:1;
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ULONG BaseAddress:22;
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} Coarse;
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struct
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{
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ULONG Type:2;
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG Reserved:1;
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ULONG Domain:4;
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ULONG Ignored:1;
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ULONG Access:2;
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ULONG Ignored1:8;
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ULONG BaseAddress:12;
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} Section;
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struct
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{
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ULONG Type:2;
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ULONG Reserved:3;
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ULONG Domain:4;
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ULONG Ignored:3;
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ULONG BaseAddress:20;
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} Fine;
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} L1;
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union
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{
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struct
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{
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ULONG Type:2;
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ULONG Unused:30;
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} Fault;
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struct
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{
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ULONG Type:2;
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG Access0:2;
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ULONG Access1:2;
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ULONG Access2:2;
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ULONG Access3:2;
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ULONG Ignored:4;
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ULONG BaseAddress:16;
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} Large;
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struct
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{
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ULONG Type:2;
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG Access0:2;
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ULONG Access1:2;
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ULONG Access2:2;
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ULONG Access3:2;
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ULONG BaseAddress:20;
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} Small;
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struct
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{
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ULONG Type:2;
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ULONG Buffered:1;
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ULONG Cached:1;
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ULONG Access0:2;
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ULONG Ignored:4;
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ULONG BaseAddress:22;
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} Tiny;
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} L2;
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ULONG AsUlong;
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};
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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_ARM
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#define PHARDWARE_PTE PHARDWARE_PTE_ARM
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#endif
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