[NTOS]: Implement new and correct MiAddressToPte, ToPde, ToPdeOffset, and MiPdeToAddres and MiAddressToPte on ARM. Remove deprecated ARM page definitions.

[NTOS]: Move HYPER_SPACE to 0xC0500000 since it must be on its own PDE. We need to revisit some FreeLDR Mm decisions later.
[NTOS]: Move certain arch-specific definitions from mm.h to the arch-specific mm.h
[NTOS]: Fix certain parts of ARM3 which made the assumption that a PDE shares the same structure as a PTE. This is true on all architectures except ARM. We now define a new MMPDE type specifically for PDEs. On x86 it is defined to MMPTE with no changes.

svn path=/trunk/; revision=45542

Author: Sir Richard

reactos/ntoskrnl/include/internal/arm/mm.h

@@ -25,7 +25,7 @@
 #define PTE_BASE    0xC0000000
 #define PTE_TOP     0xC03FFFFF
 #define PDE_BASE    0xC0400000
-#define HYPER_SPACE 0xC0404000
+#define HYPER_SPACE 0xC0500000
 
 #if 0
 typedef struct _HARDWARE_PDE_ARMV6
@@ -123,167 +123,39 @@ PULONG MmGetPageDirectory(VOID);
 /* Easy accessing PFN in PTE */
 #define PFN_FROM_PTE(v) ((v)->u.Hard.PageFrameNumber)
 
-
-#if 1
-
-//
-// FIXFIX: This is all wrong now!!!
-//
-
-//
-// Take 0x80812345 and extract:
-// PTE_BASE[0x808][0x12]
-//
-#define MiGetPteAddress(x)         \
-    (PMMPTE)(PTE_BASE + \
-             (((ULONG)(x) >> 20) << 12) + \
-             ((((ULONG)(x) >> 12) & 0xFF) << 2))
-
-#define MiGetPdeAddress(x)         \
-    (PMMPDE_HARDWARE)(PDE_BASE + \
-             (((ULONG)(x) >> 20) << 2))
-
-#define MiGetPdeOffset(x) (((ULONG)(x)) >> 22)
-
-//
-// FIXME: THESE ARE WRONG ATM.
-//
-#define MiAddressToPde(x) \
-((PMMPTE)(((((ULONG)(x)) >> 22) << 2) + PDE_BASE))
-#define MiAddressToPte(x) \
-((PMMPTE)(((((ULONG)(x)) >> 12) << 2) + PTE_BASE))
-#define MiAddressToPteOffset(x) \
-((((ULONG)(x)) << 10) >> 22)
-
-
-//
-// Convert a PTE into a corresponding address
-//
-#define MiPteToAddress(PTE) ((PVOID)((ULONG)(PTE) << 10))
-
-#define ADDR_TO_PAGE_TABLE(v) (((ULONG)(v)) / (1024 * PAGE_SIZE))
-#define ADDR_TO_PDE_OFFSET(v) ((((ULONG)(v)) / (1024 * PAGE_SIZE)))
-#define ADDR_TO_PTE_OFFSET(v)  ((((ULONG)(v)) % (1024 * PAGE_SIZE)) / PAGE_SIZE)
-
-//
-// FIXFIX: This is all wrong now!!!
-//
-typedef union _ARM_PTE
-{
-    union
-    {
-        struct
-        {
-            ULONG Type:2;
-            ULONG Unused:30;
-        } Fault;
-        struct
-        {
-            ULONG Type:2;
-            ULONG Ignored:2;
-            ULONG Reserved:1;
-            ULONG Domain:4;
-            ULONG Ignored1:1;
-            ULONG BaseAddress:22;
-        } Coarse;
-        struct
-        {
-            ULONG Type:2;
-            ULONG Buffered:1;
-            ULONG Cached:1;
-            ULONG Reserved:1;
-            ULONG Domain:4;
-            ULONG Ignored:1;
-            ULONG Access:2;
-            ULONG Ignored1:8;
-            ULONG BaseAddress:12;
-        } Section;
-        struct
-        {
-            ULONG Type:2;
-            ULONG Reserved:3;
-            ULONG Domain:4;
-            ULONG Ignored:3;
-            ULONG BaseAddress:20;
-        } Fine;
-    } L1;
-    union
-    {
-        struct
-        {
-            ULONG Type:2;
-            ULONG Unused:30;
-        } Fault;
-        struct
-        {
-            ULONG Type:2;
-            ULONG Buffered:1;
-            ULONG Cached:1;
-            ULONG Access0:2;
-            ULONG Access1:2;
-            ULONG Access2:2;
-            ULONG Access3:2;
-            ULONG Ignored:4;
-            ULONG BaseAddress:16;
-        } Large;
-        struct
-        {
-            ULONG Type:2;
-            ULONG Buffered:1;
-            ULONG Cached:1;
-            ULONG Access0:2;
-            ULONG Access1:2;
-            ULONG Access2:2;
-            ULONG Access3:2;
-            ULONG BaseAddress:20;
-        } Small;
-        struct
-        {
-            ULONG Type:2;
-            ULONG Buffered:1;
-            ULONG Cached:1;
-            ULONG Access0:2;
-            ULONG Ignored:4;
-            ULONG BaseAddress:22;
-        } Tiny; 
-    } L2;
-    ULONG AsUlong;
-} ARM_PTE, *PARM_PTE;
-
-typedef struct _ARM_TRANSLATION_TABLE
-{
-    ARM_PTE Pte[4096];
-} ARM_TRANSLATION_TABLE, *PARM_TRANSLATION_TABLE;
-
-typedef struct _ARM_COARSE_PAGE_TABLE
-{
-    ARM_PTE Pte[256];
-    ULONG Padding[768];
-} ARM_COARSE_PAGE_TABLE, *PARM_COARSE_PAGE_TABLE;
-
-typedef enum _ARM_L1_PTE_TYPE
-{
-    FaultPte,
-    CoarsePte,
-    SectionPte,
-    FinePte
-} ARM_L1_PTE_TYPE;
-
-typedef enum _ARM_L2_PTE_TYPE
-{
-    LargePte = 1,
-    SmallPte,
-    TinyPte
-} ARM_L2_PTE_TYPE;
-
-typedef enum _ARM_PTE_ACCESS
-{
-    FaultAccess,
-    SupervisorAccess,
-    SharedAccess,
-    UserAccess
-} ARM_PTE_ACCESS;
-
-#endif
+#define NR_SECTION_PAGE_TABLES              1024
+#define NR_SECTION_PAGE_ENTRIES             256
+
+/* See PDR definition */
+#define MI_HYPERSPACE_PTES                  (256 - 1)
+#define MI_ZERO_PTES                        (32)
+#define MI_MAPPING_RANGE_START              ((ULONG)HYPER_SPACE)
+#define MI_MAPPING_RANGE_END                (MI_MAPPING_RANGE_START + \
+                                             MI_HYPERSPACE_PTES * PAGE_SIZE)
+#define MI_ZERO_PTE                         (PMMPTE)(MI_MAPPING_RANGE_END + \
+                                             PAGE_SIZE)
+
+/* Retrives the PDE entry for the given VA */
+#define MiGetPdeAddress(x) ((PMMPDE)(PDE_BASE + (((ULONG)(x) >> 20) << 2)))
+#define MiAddressToPde(x)  MiGetPdeAddress(x)
+    
+/* Retrieves the PTE entry for the given VA */
+#define MiGetPteAddress(x) ((PMMPTE)(PTE_BASE + (((ULONG)(x) >> 12) << 2)))
+#define MiAddressToPte(x)  MiGetPteAddress(x)
+
+/* Retrives the PDE offset for the given VA */
+#define MiGetPdeOffset(x) (((ULONG)(x)) >> 20)
+
+/* Convert a PTE into a corresponding address */
+#define MiPteToAddress(x) ((PVOID)((ULONG)(x) << 10))
+#define MiPdeToAddress(x) ((PVOID)((ULONG)(x) << 18))
+
+#define PAGE_TO_SECTION_PAGE_DIRECTORY_OFFSET(x) \
+    ((x) / (4*1024*1024))
+
+#define PAGE_TO_SECTION_PAGE_TABLE_OFFSET(x) \
+    ((((x)) % (4*1024*1024)) / (4*1024))
+    
+#define MM_CACHE_LINE_SIZE 64
 
 #endif

reactos/ntoskrnl/include/internal/i386/mm.h

@@ -59,4 +59,32 @@ PULONG MmGetPageDirectory(VOID);
 #define MI_MAKE_WRITE_PAGE(x)      ((x)->u.Hard.Writable = 1)
 #endif
 
+#define PAGE_TO_SECTION_PAGE_DIRECTORY_OFFSET(x) \
+    ((x) / (4*1024*1024))
+
+#define PAGE_TO_SECTION_PAGE_TABLE_OFFSET(x) \
+    ((((x)) % (4*1024*1024)) / (4*1024))
+
+#define NR_SECTION_PAGE_TABLES              1024
+#define NR_SECTION_PAGE_ENTRIES             1024
+
+#define TEB_BASE                            0x7FFDE000
+
+#define MI_HYPERSPACE_PTES                  (256 - 1)
+#define MI_ZERO_PTES                        (32)
+#define MI_MAPPING_RANGE_START              (ULONG)HYPER_SPACE
+#define MI_MAPPING_RANGE_END                (MI_MAPPING_RANGE_START + \
+                                             MI_HYPERSPACE_PTES * PAGE_SIZE)
+#define MI_ZERO_PTE                         (PMMPTE)(MI_MAPPING_RANGE_END + \
+                                             PAGE_SIZE)
+
+/* On x86, these two are the same */
+#define MMPDE MMPTE
+#define PMMPDE PMMPTE
+
+/*
+* FIXME - different architectures have different cache line sizes...
+*/
+#define MM_CACHE_LINE_SIZE                  32
+
 #endif /* __NTOSKRNL_INCLUDE_INTERNAL_I386_MM_H */

reactos/ntoskrnl/include/internal/mm.h

@@ -108,28 +108,10 @@ typedef ULONG PFN_TYPE, *PPFN_TYPE;
 /* Number of list heads to use */
 #define MI_FREE_POOL_LISTS 4
 
-#define MI_HYPERSPACE_PTES                  (256 - 1)
-#define MI_ZERO_PTES                        (32)
-#define MI_MAPPING_RANGE_START              (ULONG)HYPER_SPACE
-#define MI_MAPPING_RANGE_END                (MI_MAPPING_RANGE_START + \
-                                             MI_HYPERSPACE_PTES * PAGE_SIZE)
-#define MI_ZERO_PTE                         (PMMPTE)(MI_MAPPING_RANGE_END + \
-                                             PAGE_SIZE)
 
 /* Signature of free pool blocks */
 #define MM_FREE_POOL_TAG    'lprF'
 
-#define PAGE_TO_SECTION_PAGE_DIRECTORY_OFFSET(x) \
-    ((x) / (4*1024*1024))
-
-#define PAGE_TO_SECTION_PAGE_TABLE_OFFSET(x) \
-    ((((x)) % (4*1024*1024)) / (4*1024))
-
-#define NR_SECTION_PAGE_TABLES              1024
-#define NR_SECTION_PAGE_ENTRIES             1024
-
-#define TEB_BASE                            0x7FFDE000
-
 /* Although Microsoft says this isn't hardcoded anymore,
    they won't be able to change it. Stuff depends on it */
 #define MM_VIRTMEM_GRANULARITY              (64 * 1024)
@@ -169,17 +151,6 @@ typedef ULONG PFN_TYPE, *PPFN_TYPE;
  */
 #define MM_POOL_ALIGNMENT                   8
 
-/*
- * Maximum size of the kmalloc area (this is totally arbitary)
- */
-#define MM_KERNEL_MAP_SIZE                  (16*1024*1024)
-#define MM_KERNEL_MAP_BASE                  (0xf0c00000)
-
-/*
- * FIXME - different architectures have different cache line sizes...
- */
-#define MM_CACHE_LINE_SIZE                  32
-
 #define MM_ROUND_UP(x,s)                    \
     ((PVOID)(((ULONG_PTR)(x)+(s)-1) & ~((ULONG_PTR)(s)-1)))
 

reactos/ntoskrnl/mm/ARM3/mdlsup.c

@@ -579,7 +579,8 @@ MmProbeAndLockPages(IN PMDL Mdl,
     PETHREAD Thread;
     PMMSUPPORT AddressSpace;
     NTSTATUS ProbeStatus;
-    PMMPTE PointerPte, PointerPde, LastPte;
+    PMMPTE PointerPte, LastPte;
+    PMMPDE PointerPde;
     PFN_NUMBER PageFrameIndex;
     PMMPFN Pfn1;
     BOOLEAN UsePfnLock;

reactos/ntoskrnl/mm/ARM3/pagfault.c

@@ -24,7 +24,7 @@ NTSTATUS
 FASTCALL
 MiCheckPdeForPagedPool(IN PVOID Address)
 {
-    PMMPTE PointerPde;
+    PMMPDE PointerPde;
     NTSTATUS Status = STATUS_SUCCESS;
 
     //
@@ -37,7 +37,7 @@ MiCheckPdeForPagedPool(IN PVOID Address)
         // Send a hint to the page fault handler that this is only a valid fault
         // if we already detected this was access within the page table range
         //
-        PointerPde = MiAddressToPte(Address);
+        PointerPde = (PMMPDE)MiAddressToPte(Address);
         Status = STATUS_WAIT_1;
     }
     else if (Address < MmSystemRangeStart)
@@ -200,7 +200,8 @@ MmArmAccessFault(IN BOOLEAN StoreInstruction,
                  IN PVOID TrapInformation)
 {
     KIRQL OldIrql = KeGetCurrentIrql(), LockIrql;
-    PMMPTE PointerPde, PointerPte;
+    PMMPTE PointerPte;
+    PMMPDE PointerPde;
     MMPTE TempPte;
     PETHREAD CurrentThread;
     NTSTATUS Status;