[ros-diffs] [ros-arm-bringup] 41527: - Initialize the ARM pool (MiInitializeArmPool): - Do some additional accounting to keep track of initial nonpaged pool range and size. - Create and initialize the free page lists, and free page entries. - Validate that the initial nonpaged pool address space was properly mapped. - Validate that the expansion nonpaged pool address space is unmapped, and prepare to map it.
ros-arm-bringup at svn.reactos.org
ros-arm-bringup at svn.reactos.org
Mon Jun 22 10:22:42 CEST 2009
Author: ros-arm-bringup
Date: Mon Jun 22 12:22:41 2009
New Revision: 41527
URL: http://svn.reactos.org/svn/reactos?rev=41527&view=rev
Log:
- Initialize the ARM pool (MiInitializeArmPool):
- Do some additional accounting to keep track of initial nonpaged pool range and size.
- Create and initialize the free page lists, and free page entries.
- Validate that the initial nonpaged pool address space was properly mapped.
- Validate that the expansion nonpaged pool address space is unmapped, and prepare to map it.
Added:
trunk/reactos/ntoskrnl/mm/ARM3/pool.c (with props)
Modified:
trunk/reactos/ntoskrnl/mm/ARM3/init.c
trunk/reactos/ntoskrnl/mm/ARM3/miarm.h
trunk/reactos/ntoskrnl/ntoskrnl-generic.rbuild
Modified: trunk/reactos/ntoskrnl/mm/ARM3/init.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/init.c?rev=41527&r1=41526&r2=41527&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/init.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/init.c [iso-8859-1] Mon Jun 22 12:22:41 2009
@@ -362,6 +362,11 @@
0,
BoundaryAddressMultiple);
ASSERT(Status == STATUS_SUCCESS);
+
+ //
+ // Now go ahead and initialize the ARM pool
+ //
+ MiInitializeArmPool();
}
//
Modified: trunk/reactos/ntoskrnl/mm/ARM3/miarm.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/miarm.h?rev=41527&r1=41526&r2=41527&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/miarm.h [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/miarm.h [iso-8859-1] Mon Jun 22 12:22:41 2009
@@ -9,7 +9,19 @@
#define MI_MIN_PAGES_FOR_NONPAGED_POOL_TUNING ((255*1024*1024) >> PAGE_SHIFT)
#define MI_MAX_INIT_NONPAGED_POOL_SIZE (128 * 1024 * 1024)
#define MI_MAX_NONPAGED_POOL_SIZE (128 * 1024 * 1024)
+#define MI_MAX_FREE_PAGE_LISTS 4
extern MMPTE HyperTemplatePte;
+extern ULONG MmSizeOfNonPagedPoolInBytes;
+extern ULONG MmMaximumNonPagedPoolInBytes;
+extern PVOID MmNonPagedPoolStart;
+extern PVOID MmNonPagedPoolExpansionStart;
+
+VOID
+NTAPI
+MiInitializeArmPool(
+ VOID
+);
+
/* EOF */
Added: trunk/reactos/ntoskrnl/mm/ARM3/pool.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/pool.c?rev=41527&view=auto
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/pool.c (added)
+++ trunk/reactos/ntoskrnl/mm/ARM3/pool.c [iso-8859-1] Mon Jun 22 12:22:41 2009
@@ -1,0 +1,125 @@
+/*
+ * PROJECT: ReactOS Kernel
+ * LICENSE: BSD - See COPYING.ARM in the top level directory
+ * FILE: ntoskrnl/mm/ARM3/pool.c
+ * PURPOSE: ARM Memory Manager Pool Allocator
+ * PROGRAMMERS: ReactOS Portable Systems Group
+ */
+
+/* INCLUDES *******************************************************************/
+
+#include <ntoskrnl.h>
+#define NDEBUG
+#include <debug.h>
+
+#line 15 "ARM³::POOL"
+#define MODULE_INVOLVED_IN_ARM3
+#include "../ARM3/miarm.h"
+
+/* GLOBALS ********************************************************************/
+
+LIST_ENTRY MmNonPagedPoolFreeListHead[MI_MAX_FREE_PAGE_LISTS];
+PFN_NUMBER MmNumberOfFreeNonPagedPool, MiExpansionPoolPagesInitialCharge;
+PVOID MmNonPagedPoolEnd0;
+PFN_NUMBER MiStartOfInitialPoolFrame, MiEndOfInitialPoolFrame;
+
+/* PRIVATE FUNCTIONS **********************************************************/
+
+VOID
+NTAPI
+MiInitializeArmPool(VOID)
+{
+ ULONG i;
+ PFN_NUMBER PoolPages;
+ PMMFREE_POOL_ENTRY FreeEntry, FirstEntry;
+ PMMPTE PointerPte;
+ PAGED_CODE();
+
+ //
+ // We keep 4 lists of free pages (4 lists help avoid contention)
+ //
+ for (i = 0; i < MI_MAX_FREE_PAGE_LISTS; i++)
+ {
+ //
+ // Initialize each of them
+ //
+ InitializeListHead(&MmNonPagedPoolFreeListHead[i]);
+ }
+
+ //
+ // Calculate how many pages the initial nonpaged pool has
+ //
+ PoolPages = BYTES_TO_PAGES(MmSizeOfNonPagedPoolInBytes);
+ MmNumberOfFreeNonPagedPool = PoolPages;
+
+ //
+ // Initialize the first free entry
+ //
+ FreeEntry = MmNonPagedPoolStart;
+ FirstEntry = FreeEntry;
+ FreeEntry->Size = PoolPages;
+ FreeEntry->Owner = FirstEntry;
+
+ //
+ // Insert it into the last list
+ //
+ InsertHeadList(&MmNonPagedPoolFreeListHead[MI_MAX_FREE_PAGE_LISTS - 1],
+ &FreeEntry->List);
+
+ //
+ // Now create free entries for every single other page
+ //
+ while (PoolPages-- > 1)
+ {
+ //
+ // Link them all back to the original entry
+ //
+ FreeEntry = (PMMFREE_POOL_ENTRY)((ULONG_PTR)FreeEntry + PAGE_SIZE);
+ FreeEntry->Owner = FirstEntry;
+ }
+
+ //
+ // Validate and remember first allocated pool page
+ //
+ PointerPte = MiAddressToPte(MmNonPagedPoolStart);
+ ASSERT(PointerPte->u.Hard.Valid == 1);
+ MiStartOfInitialPoolFrame = PFN_FROM_PTE(PointerPte);
+
+ //
+ // Keep track of where initial nonpaged pool ends
+ //
+ MmNonPagedPoolEnd0 = (PVOID)((ULONG_PTR)MmNonPagedPoolStart +
+ MmSizeOfNonPagedPoolInBytes);
+
+ //
+ // Validate and remember last allocated pool page
+ //
+ PointerPte = MiAddressToPte((PVOID)((ULONG_PTR)MmNonPagedPoolEnd0 - 1));
+ ASSERT(PointerPte->u.Hard.Valid == 1);
+ MiEndOfInitialPoolFrame = PFN_FROM_PTE(PointerPte);
+
+ //
+ // Validate the first nonpaged pool expansion page (which is a guard page)
+ //
+ PointerPte = MiAddressToPte(MmNonPagedPoolExpansionStart);
+ ASSERT(PointerPte->u.Hard.Valid == 0);
+
+ //
+ // Calculate the size of the expansion region alone
+ //
+ MiExpansionPoolPagesInitialCharge =
+ BYTES_TO_PAGES(MmMaximumNonPagedPoolInBytes - MmSizeOfNonPagedPoolInBytes);
+
+ //
+ // Remove 2 pages, since there's a guard page on top and on the bottom
+ //
+ MiExpansionPoolPagesInitialCharge -= 2;
+
+ //
+ // Now initialize the nonpaged pool expansion PTE space. Remember there's a
+ // guard page on top so make sure to skip it. The bottom guard page will be
+ // guaranteed by the fact our size is off by one.
+ //
+}
+
+/* EOF */
Propchange: trunk/reactos/ntoskrnl/mm/ARM3/pool.c
------------------------------------------------------------------------------
svn:eol-style = native
Propchange: trunk/reactos/ntoskrnl/mm/ARM3/pool.c
------------------------------------------------------------------------------
svn:mime-type = text/plain
Modified: trunk/reactos/ntoskrnl/ntoskrnl-generic.rbuild
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ntoskrnl-generic.rbuild?rev=41527&r1=41526&r2=41527&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/ntoskrnl-generic.rbuild [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ntoskrnl-generic.rbuild [iso-8859-1] Mon Jun 22 12:22:41 2009
@@ -361,6 +361,7 @@
</if>
<directory name="ARM3">
<file>init.c</file>
+ <file>pool.c</file>
</directory>
<file>anonmem.c</file>
<file>balance.c</file>
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