[sir_richard] 48925: [NTOS]: Write missing color code in certain PFN functions, and fix existing code where needed. Add some debugging. For now, turned off until testing succeeds. [NTOS]: Redocumen...
28 Sep
2010
28 Sep
'10
10:41 p.m.
Author: sir_richard
Date: Tue Sep 28 22:41:46 2010
New Revision: 48925
URL: http://svn.reactos.org/svn/reactos?rev=48925&view=rev
Log:
[NTOS]: Write missing color code in certain PFN functions, and fix existing code where
needed. Add some debugging. For now, turned off until testing succeeds.
[NTOS]: Redocument which MMPFN fields are violated by ReactOS-internal values. This has
gotten much better than before.
Modified:
trunk/reactos/ntoskrnl/include/internal/mm.h
trunk/reactos/ntoskrnl/mm/ARM3/miarm.h
trunk/reactos/ntoskrnl/mm/ARM3/pfnlist.c
Modified: trunk/reactos/ntoskrnl/include/internal/mm.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/mm.h [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/include/internal/mm.h [iso-8859-1] Tue Sep 28 22:41:46 2010
@@ -306,30 +306,30 @@
USHORT Modified:1;
USHORT ReadInProgress:1; // StartOfAllocation
USHORT WriteInProgress:1; // EndOfAllocation
- USHORT PrototypePte:1; // Zero
- USHORT PageColor:4; // LockCount
- USHORT PageLocation:3; // Consumer
+ USHORT PrototypePte:1;
+ USHORT PageColor:4;
+ USHORT PageLocation:3;
USHORT RemovalRequested:1;
- USHORT CacheAttribute:2; // Type
+ USHORT CacheAttribute:2;
USHORT Rom:1;
- USHORT ParityError:1;
+ USHORT ParityError:1; // HasRmap
} MMPFNENTRY;
typedef struct _MMPFN
{
union
{
- PFN_NUMBER Flink; // ListEntry.Flink
- ULONG WsIndex;
+ PFN_NUMBER Flink;
+ ULONG WsIndex; // SavedSwapEntry
PKEVENT Event;
NTSTATUS ReadStatus;
SINGLE_LIST_ENTRY NextStackPfn;
} u1;
- PMMPTE PteAddress; // ListEntry.Blink
+ PMMPTE PteAddress;
union
{
PFN_NUMBER Blink;
- ULONG_PTR ShareCount; // MapCount
+ ULONG_PTR ShareCount;
} u2;
union
{
@@ -351,7 +351,7 @@
};
union
{
- ULONG_PTR EntireFrame; // SavedSwapEntry
+ ULONG_PTR EntireFrame;
struct
{
ULONG_PTR PteFrame:25;
Modified: trunk/reactos/ntoskrnl/mm/ARM3/miarm.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/miarm.h?r…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/miarm.h [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/miarm.h [iso-8859-1] Tue Sep 28 22:41:46 2010
@@ -933,12 +933,6 @@
IN PMMPFN Entry
);
-PMMPFN
-NTAPI
-MiRemoveHeadList(
- IN PMMPFNLIST ListHead
-);
-
PFN_NUMBER
NTAPI
MiAllocatePfn(
Modified: trunk/reactos/ntoskrnl/mm/ARM3/pfnlist.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/pfnlist.c…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/pfnlist.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/pfnlist.c [iso-8859-1] Tue Sep 28 22:41:46 2010
@@ -78,6 +78,11 @@
PFN_NUMBER OldFlink, OldBlink;
PMMPFNLIST ListHead;
MMLISTS ListName;
+#ifdef ARM3_COLORS
+ ULONG Color;
+ PMMCOLOR_TABLES ColorTable;
+ PMMPFN Pfn1;
+#endif
/* Make sure the PFN lock is held */
ASSERT(KeGetCurrentIrql() == DISPATCH_LEVEL);
@@ -124,13 +129,64 @@
/* Set the list head's backlink instead */
ListHead->Flink = OldFlink;
}
-
+#ifdef ARM3_COLORS
+ /* Get the page color */
+ OldBlink = MiGetPfnEntryIndex(Entry);
+ Color = OldBlink & MmSecondaryColorMask;
+ DPRINT1("Color: %lx\n", Color);
+
+ /* Get the first page on the color list */
+ ColorTable = &MmFreePagesByColor[ListName][Color];
+ DPRINT1("Color table: %p %lx\n", ColorTable, ColorTable->Flink);
+
+ /* Check if this was was actually the head */
+ OldFlink = ColorTable->Flink;
+ if (OldFlink == OldBlink)
+ {
+ /* Make the table point to the next page this page was linking to */
+ ColorTable->Flink = Entry->OriginalPte.u.Long;
+ if (ColorTable->Flink != LIST_HEAD)
+ {
+ /* And make the previous link point to the head now */
+ MiGetPfnEntry(ColorTable->Flink)->u4.PteFrame = -1;
+ }
+ else
+ {
+ /* And if that page was the head, loop the list back around */
+ ColorTable->Blink = (PVOID)LIST_HEAD;
+ }
+ }
+ else
+ {
+ /* This page shouldn't be pointing back to the head */
+ ASSERT(Entry->u4.PteFrame != -1);
+
+ /* Make the back link point to whoever the next page is */
+ Pfn1 = MiGetPfnEntry(Entry->u4.PteFrame);
+ Pfn1->OriginalPte.u.Long = Entry->OriginalPte.u.Long;
+
+ /* Check if this page was pointing to the head */
+ if (Entry->OriginalPte.u.Long != LIST_HEAD)
+ {
+ /* Make the back link point to the head */
+ Pfn1 = MiGetPfnEntry(Entry->OriginalPte.u.Long);
+ Pfn1->u4.PteFrame = -1;
+ }
+ else
+ {
+ /* Then the table is directly back pointing to this page now */
+ ColorTable->Blink = Pfn1;
+ }
+ }
+
+ /* One less colored page */
+ ASSERT(ColorTable->Count >= 1);
+ ColorTable->Count--;
+#endif
/* We are not on a list anymore */
Entry->u1.Flink = Entry->u2.Blink = 0;
ASSERT_LIST_INVARIANT(ListHead);
- /* FIXME: Deal with color list */
-
/* See if we hit any thresholds */
if (MmAvailablePages == MmHighMemoryThreshold)
{
@@ -160,9 +216,9 @@
MMLISTS ListName;
PFN_NUMBER OldFlink, OldBlink;
ULONG OldColor, OldCache;
-#if 0
+#ifdef ARM3_COLORS
PMMCOLOR_TABLES ColorTable;
-#endif
+#endif
/* Make sure PFN lock is held */
ASSERT(KeGetCurrentIrql() == DISPATCH_LEVEL);
ASSERT(Color < MmSecondaryColors);
@@ -221,18 +277,22 @@
Pfn1->u3.e2.ShortFlags = 0;
Pfn1->u3.e1.PageColor = OldColor;
Pfn1->u3.e1.CacheAttribute = OldCache;
-
-#if 0 // When switching to ARM3
+#ifdef ARM3_COLORS
/* Get the first page on the color list */
+ ASSERT(Color < MmSecondaryColors);
ColorTable = &MmFreePagesByColor[ListName][Color];
ASSERT(ColorTable->Count >= 1);
/* Set the forward link to whoever we were pointing to */
+ DPRINT1("Has RMAP: %lx (link: %lx)\n", Pfn1->u3.e1.ParityError,
Pfn1->OriginalPte.u.Long);
+ DPRINT1("Color table: %p %lx\n", ColorTable, ColorTable->Flink);
ColorTable->Flink = Pfn1->OriginalPte.u.Long;
+
+ /* Get the first page on the color list */
if (ColorTable->Flink == LIST_HEAD)
{
/* This is the beginning of the list, so set the sentinel value */
- ColorTable->Blink = LIST_HEAD;
+ ColorTable->Blink = (PVOID)LIST_HEAD;
}
else
{
@@ -240,8 +300,8 @@
MiGetPfnEntry(ColorTable->Flink)->u4.PteFrame = -1;
}
- /* One more page */
- ColorTable->Total++;
+ /* One less page */
+ ColorTable->Count--;
#endif
/* See if we hit any thresholds */
if (MmAvailablePages == MmHighMemoryThreshold)
@@ -404,7 +464,7 @@
PMMPFNLIST ListHead;
PFN_NUMBER LastPage;
PMMPFN Pfn1;
-#if 0
+#ifdef ARM3_COLORS
ULONG Color;
PMMPFN Blink;
PMMCOLOR_TABLES ColorTable;
@@ -473,13 +533,15 @@
/* Otherwise check if we reached the high threshold and signal the event */
KeSetEvent(MiHighMemoryEvent, 0, FALSE);
}
-
-#if 0 // When using ARM3 PFN
+#ifdef ARM3_COLORS
/* Get the page color */
Color = PageFrameIndex & MmSecondaryColorMask;
+ DPRINT1("Color: %lx\n", Color);
/* Get the first page on the color list */
ColorTable = &MmFreePagesByColor[FreePageList][Color];
+ DPRINT1("Color table: %p %lx\n", ColorTable, ColorTable->Flink);
+ DPRINT1("Has RMAP: %lx (link: %lx)\n", Pfn1->u3.e1.ParityError,
Pfn1->OriginalPte.u.Long);
if (ColorTable->Flink == LIST_HEAD)
{
/* The list is empty, so we are the first page */
@@ -492,18 +554,24 @@
Blink = (PMMPFN)ColorTable->Blink;
/* Make it link to us */
- Pfn1->u4.PteFrame = MI_PFNENTRY_TO_PFN(Blink);
+ Pfn1->u4.PteFrame = MiGetPfnEntryIndex(Blink);
+
+ /* If there is an original pte, it should be an old link, NOT a ReactOS RMAP */
+ DPRINT1("Has RMAP: %lx (link: %lx)\n", Blink->u3.e1.ParityError,
Blink->OriginalPte.u.Long);
+ ASSERT(Blink->u3.e1.ParityError == FALSE);
Blink->OriginalPte.u.Long = PageFrameIndex;
}
/* Now initialize our own list pointers */
ColorTable->Blink = Pfn1;
+
+ /* If there is an original pte, it should be an old link, NOT a ReactOS RMAP */
+ ASSERT(Pfn1->u3.e1.ParityError == FALSE);
Pfn1->OriginalPte.u.Long = LIST_HEAD;
/* And increase the count in the colored list */
ColorTable->Count++;
#endif
-
/* Notify zero page thread if enough pages are on the free list now */
if ((ListHead->Total >= 8) && !(MmZeroingPageThreadActive))
{
@@ -522,7 +590,10 @@
PFN_NUMBER Flink;
PMMPFN Pfn1, Pfn2;
MMLISTS ListName;
-
+#ifdef ARM3_COLORS
+ PMMCOLOR_TABLES ColorHead;
+ ULONG Color;
+#endif
/* For free pages, use MiInsertPageInFreeList */
ASSERT(ListHead != &MmFreePageListHead);
@@ -585,8 +656,47 @@
/* Otherwise check if we reached the high threshold and signal the event */
KeSetEvent(MiHighMemoryEvent, 0, FALSE);
}
-
- /* FIXME: Color code handling */
+
+#ifdef ARM3_COLORS
+ ASSERT(ListName == ZeroedPageList);
+ ASSERT(Pfn1->u4.InPageError == 0);
+
+ /* Get the page color */
+ Color = PageFrameIndex & MmSecondaryColorMask;
+ DPRINT1("Color: %lx\n", Color);
+
+ /* Get the list for this color */
+ ColorHead = &MmFreePagesByColor[ZeroedPageList][Color];
+
+ /* Get the old head */
+ Flink = ColorHead->Flink;
+
+ /* If there is an original pte, it should be an old link, NOT a ReactOS RMAP */
+ ASSERT(Pfn1->u3.e1.ParityError == FALSE);
+
+ /* Make this page point back to the list, and point forwards to the old head */
+ Pfn1->OriginalPte.u.Long = Flink;
+ Pfn1->u4.PteFrame = -1;
+
+ /* Set the new head */
+ ColorHead->Flink = PageFrameIndex;
+
+ /* Was the head empty? */
+ if (Flink != LIST_HEAD)
+ {
+ /* No, so make the old head point to this page */
+ Pfn2 = MiGetPfnEntry(Flink);
+ Pfn2->u4.PteFrame = PageFrameIndex;
+ }
+ else
+ {
+ /* Yes, make it loop back to this page */
+ ColorHead->Blink = (PVOID)Pfn1;
+ }
+
+ /* One more paged on the colored list */
+ ColorHead->Count++;
+#endif
}
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