- Allocate a separate memory area for the kmap area.

- Changed the free block list for the non paged pool from a double linked list
  to an avl tree which is sorted by sizes.

svn path=/trunk/; revision=5002

reactos/ntoskrnl/include/internal/mm.h

@@ -198,7 +198,7 @@ NTSTATUS MmCreateMemoryArea(struct _EPROCESS* Process,
 MEMORY_AREA* MmOpenMemoryAreaByAddress(PMADDRESS_SPACE AddressSpace, 
 				       PVOID Address);
 NTSTATUS MmInitMemoryAreas(VOID);
-VOID ExInitNonPagedPool(ULONG BaseAddress);
+VOID MiInitializeNonPagedPool(VOID);
 NTSTATUS MmFreeMemoryArea(PMADDRESS_SPACE AddressSpace,
 			  PVOID BaseAddress,
 			  ULONG Length,
@@ -333,7 +333,7 @@ VOID MmInit2(VOID);
 VOID MmInit3(VOID);
 NTSTATUS MmInitPagerThread(VOID);
 
-VOID MmInitKernelMap(PVOID BaseAddress);
+VOID MiInitKernelMap(VOID);
 NTSTATUS MmCreatePageTable(PVOID PAddress);
 
 typedef struct

reactos/ntoskrnl/include/internal/pool.h

@@ -19,10 +19,12 @@ extern PVOID MmPagedPoolBase;
 extern ULONG MmPagedPoolSize;
 
 #define MM_PAGED_POOL_SIZE	(100*1024*1024)
+#define MM_NONPAGED_POOL_SIZE   (100*1024*1024)
 
 /*
  * Maximum size of the kmalloc area (this is totally arbitary)
  */
-#define NONPAGED_POOL_SIZE   (100*1024*1024)
+#define MM_KERNEL_MAP_SIZE	(16*1024*1024)
+
 
 #endif /* __INTERNAL_POOL_H */

reactos/ntoskrnl/mm/kmap.c

@@ -1,4 +1,4 @@
-/* $Id: kmap.c,v 1.24 2003/06/19 19:01:01 gvg Exp $
+/* $Id: kmap.c,v 1.25 2003/07/05 18:10:50 hbirr Exp $
  *
  * COPYRIGHT:    See COPYING in the top level directory
  * PROJECT:      ReactOS kernel
@@ -20,18 +20,19 @@
 
 /* GLOBALS *****************************************************************/
 
-#define ALLOC_MAP_SIZE (NONPAGED_POOL_SIZE / PAGE_SIZE)
+#define ALLOC_MAP_SIZE (MM_KERNEL_MAP_SIZE / PAGE_SIZE)
 
 /*
  * One bit for each page in the kmalloc region
  *      If set then the page is used by a kmalloc block
  */
-static UCHAR AllocMapBuffer[ROUND_UP(ALLOC_MAP_SIZE, 8) / 8];
+static UCHAR AllocMapBuffer[ROUND_UP(ALLOC_MAP_SIZE, 32) / 8];
 static RTL_BITMAP AllocMap;
 static KSPIN_LOCK AllocMapLock;
 static ULONG AllocMapHint = 0;
 
-static PVOID NonPagedPoolBase;
+extern PVOID MiKernelMapStart;
+extern ULONG MiKernelMapLength;
 
 /* FUNCTIONS ***************************************************************/
 
@@ -39,7 +40,7 @@ VOID
 ExUnmapPage(PVOID Addr)
 {
    KIRQL oldIrql;
-   ULONG Base = (Addr - NonPagedPoolBase) / PAGE_SIZE;
+   ULONG Base = (Addr - MiKernelMapStart) / PAGE_SIZE;
    
    DPRINT("ExUnmapPage(Addr %x)\n",Addr);
    
@@ -109,12 +110,12 @@ ExAllocatePageWithPhysPage(PHYSICAL_ADDRESS PhysPage)
    {
       AllocMapHint = Base + 1;
       KeReleaseSpinLock(&AllocMapLock, oldlvl);
-      Addr = NonPagedPoolBase + Base * PAGE_SIZE;
+      Addr = MiKernelMapStart + Base * PAGE_SIZE;
       Status = MmCreateVirtualMapping(NULL, 
 	                              Addr, 
 				      PAGE_READWRITE | PAGE_SYSTEM, 
 				      PhysPage,
-				      FALSE);
+				      TRUE);
       if (!NT_SUCCESS(Status))
       {
           DbgPrint("Unable to create virtual mapping\n");
@@ -127,19 +128,18 @@ ExAllocatePageWithPhysPage(PHYSICAL_ADDRESS PhysPage)
 }
 
 VOID 
-MmInitKernelMap(PVOID BaseAddress)
+MiInitKernelMap(VOID)
 {
-   NonPagedPoolBase = BaseAddress;
    KeInitializeSpinLock(&AllocMapLock);
    RtlInitializeBitMap(&AllocMap, (PVOID)&AllocMapBuffer, ALLOC_MAP_SIZE);
    RtlClearAllBits(&AllocMap);
 }
-
+#if 0
 VOID
 MiFreeNonPagedPoolRegion(PVOID Addr, ULONG Count, BOOLEAN Free)
 {
   ULONG i;
-  ULONG Base = (Addr - NonPagedPoolBase) / PAGE_SIZE;
+  ULONG Base = (Addr - MiKernelMapStart) / PAGE_SIZE;
   KIRQL oldlvl;
   
   for (i = 0; i < Count; i++)
@@ -178,5 +178,7 @@ MiAllocNonPagedPoolRegion(ULONG nr_pages)
    }
    KeReleaseSpinLock(&AllocMapLock, oldlvl);
    DPRINT("returning %x\n",NonPagedPoolBase + Base * PAGE_SIZE);
-   return NonPagedPoolBase + Base * PAGE_SIZE;
+   return MiKernelMapStart + Base * PAGE_SIZE;
 }
+#endif
+

reactos/ntoskrnl/mm/mminit.c

@@ -1,4 +1,4 @@
-/* $Id: mminit.c,v 1.49 2003/06/19 19:01:01 gvg Exp $
+/* $Id: mminit.c,v 1.50 2003/07/05 18:10:50 hbirr Exp $
  *
  * COPYRIGHT:   See COPYING in the top directory
  * PROJECT:     ReactOS kernel 
@@ -42,14 +42,21 @@ static MM_SYSTEM_SIZE MmSystemSize = MmSmallSystem;
 extern unsigned int _bss_end__;
 
 static MEMORY_AREA* kernel_text_desc = NULL;
+static MEMORY_AREA* kernel_map_desc = NULL;
 static MEMORY_AREA* kernel_data_desc = NULL;
 static MEMORY_AREA* kernel_param_desc = NULL;
 static MEMORY_AREA* kernel_pool_desc = NULL;
 static MEMORY_AREA* kernel_shared_data_desc = NULL;
+static MEMORY_AREA* MiKernelMapDescriptor = NULL;
 static MEMORY_AREA* MiPagedPoolDescriptor = NULL;
 
 PHYSICAL_ADDRESS MmSharedDataPagePhysicalAddress;
 
+PVOID MiNonPagedPoolStart;
+ULONG MiNonPagedPoolLength;
+PVOID MiKernelMapStart;
+ULONG MiKernelMapLength;
+
 /* FUNCTIONS ****************************************************************/
 
 BOOLEAN STDCALL MmIsThisAnNtAsSystem(VOID)
@@ -86,11 +93,35 @@ VOID MmInitVirtualMemory(ULONG LastKernelAddress,
    LastKernelAddress = PAGE_ROUND_UP(LastKernelAddress);
 
    MmInitMemoryAreas();
-   ExInitNonPagedPool(LastKernelAddress + PAGE_SIZE);
+
+   /* Don't change the start of kernel map. Pte's must always exist for this region. */
+   MiKernelMapStart = (PVOID)LastKernelAddress + PAGE_SIZE;
+   MiKernelMapLength = MM_KERNEL_MAP_SIZE;
+
+   MiNonPagedPoolStart = MiKernelMapStart + MiKernelMapLength + PAGE_SIZE;
+   MiNonPagedPoolLength = MM_NONPAGED_POOL_SIZE;
+
+   MmPagedPoolBase = MiNonPagedPoolStart + MiNonPagedPoolLength + PAGE_SIZE;
+   MmPagedPoolSize = MM_PAGED_POOL_SIZE;
+
+
+   MiInitKernelMap();
+   MiInitializeNonPagedPool();
 
    /*
     * Setup the system area descriptor list
     */
+   BaseAddress = (PVOID)0xf0000000;
+   MmCreateMemoryArea(NULL,
+		      MmGetKernelAddressSpace(),
+		      MEMORY_AREA_SYSTEM,
+		      &BaseAddress,
+		      0x400000,
+		      0,
+		      &kernel_map_desc,
+		      FALSE,
+		      FALSE);
+
    BaseAddress = (PVOID)KERNEL_BASE;
    Length = PAGE_ROUND_UP(((ULONG)&_text_end__)) - KERNEL_BASE;
    ParamLength = ParamLength - Length;
@@ -108,7 +139,6 @@ VOID MmInitVirtualMemory(ULONG LastKernelAddress,
 		      &kernel_text_desc,
 		      FALSE,
 		      FALSE);
-
    Length = PAGE_ROUND_UP(((ULONG)&_bss_end__)) - 
             PAGE_ROUND_UP(((ULONG)&_text_end__));
    ParamLength = ParamLength - Length;
@@ -131,7 +161,6 @@ VOID MmInitVirtualMemory(ULONG LastKernelAddress,
 		      FALSE);
 
    BaseAddress = (PVOID)PAGE_ROUND_UP(((ULONG)&_bss_end__));
-//   Length = ParamLength;
    Length = LastKernelAddress - (ULONG)BaseAddress;
    MmCreateMemoryArea(NULL,
 		      MmGetKernelAddressSpace(),
@@ -143,32 +172,39 @@ VOID MmInitVirtualMemory(ULONG LastKernelAddress,
 		      FALSE,
 		      FALSE);
    
-   BaseAddress = (PVOID)(LastKernelAddress + PAGE_SIZE);
-   Length = NONPAGED_POOL_SIZE;
+   BaseAddress = MiNonPagedPoolStart;
    MmCreateMemoryArea(NULL,
 		      MmGetKernelAddressSpace(),
 		      MEMORY_AREA_SYSTEM,
 		      &BaseAddress,
-		      Length,
+		      MiNonPagedPoolLength,
 		      0,
 		      &kernel_pool_desc,
 		      FALSE,
 		      FALSE);
 
-   MmPagedPoolSize = MM_PAGED_POOL_SIZE;
-   BaseAddress = (PVOID)(LastKernelAddress + PAGE_SIZE + NONPAGED_POOL_SIZE +
-			 PAGE_SIZE);
-   MmPagedPoolBase = BaseAddress;
-   Length = MM_PAGED_POOL_SIZE;
-   MmCreateMemoryArea(NULL,
+   BaseAddress = MiKernelMapStart;
+   Status = MmCreateMemoryArea(NULL,
+		      MmGetKernelAddressSpace(),
+		      MEMORY_AREA_SYSTEM,
+		      &BaseAddress,
+		      MiKernelMapLength,
+		      0,
+		      &MiKernelMapDescriptor,
+		      FALSE,
+		      FALSE);
+   
+   BaseAddress = MmPagedPoolBase;
+   Status = MmCreateMemoryArea(NULL,
 		      MmGetKernelAddressSpace(),
 		      MEMORY_AREA_PAGED_POOL,
 		      &BaseAddress,
-		      Length,
+		      MmPagedPoolSize,
 		      0,
 		      &MiPagedPoolDescriptor,
 		      FALSE,
 		      FALSE);
+
    MmInitializePagedPool();
 
    /*