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- Replaced MP with CONFIG_SMP.

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- Used interlocked function for accessing the page directories/tables.

svn path=/trunk/; revision=12834
This commit is contained in:
Hartmut Birr 2005-01-05 19:27:58 +00:00
parent b0c84d931e
commit 6801048d57
1 changed files with 13 additions and 11 deletions
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24
reactos/ntoskrnl/mm/i386/page.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software * along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/ */
/* $Id: page.c,v 1.80 2004/12/30 08:05:11 hyperion Exp $ /* $Id$
* *
* PROJECT: ReactOS kernel * PROJECT: ReactOS kernel
* FILE: ntoskrnl/mm/i386/page.c * FILE: ntoskrnl/mm/i386/page.c
@ -106,7 +106,7 @@ MiFlushTlbIpiRoutine(PVOID Address)
VOID VOID
MiFlushTlb(PULONG Pt, PVOID Address) MiFlushTlb(PULONG Pt, PVOID Address)
{ {
#ifdef MP #ifdef CONFIG_SMP
if (Pt) if (Pt)
{ {
MmUnmapPageTable(Pt); MmUnmapPageTable(Pt);
@ -635,7 +635,7 @@ MmGetPageTableForProcess(PEPROCESS Process, PVOID Address, BOOLEAN Create)
{ {
KEBUGCHECK(0); KEBUGCHECK(0);
} }
if (PageDir[PdeOffset] == 0) if (0 == InterlockedCompareExchangeUL(&PageDir[PdeOffset], 0, 0))
{ {
if (Create == FALSE) if (Create == FALSE)
{ {
@ -667,11 +667,11 @@ MmGetPageTableForProcess(PEPROCESS Process, PVOID Address, BOOLEAN Create)
return Pt + ADDR_TO_PTE_OFFSET(Address); return Pt + ADDR_TO_PTE_OFFSET(Address);
} }
PageDir = ADDR_TO_PDE(Address); PageDir = ADDR_TO_PDE(Address);
if (*PageDir == 0) if (0 == InterlockedCompareExchangeUL(PageDir, 0, 0))
{ {
if (Address >= (PVOID)KERNEL_BASE) if (Address >= (PVOID)KERNEL_BASE)
{ {
if (MmGlobalKernelPageDirectory[PdeOffset] == 0) if (0 == InterlockedCompareExchangeUL(&MmGlobalKernelPageDirectory[PdeOffset], 0, 0))
{ {
if (Create == FALSE) if (Create == FALSE)
{ {
@ -692,7 +692,7 @@ MmGetPageTableForProcess(PEPROCESS Process, PVOID Address, BOOLEAN Create)
MmReleasePageMemoryConsumer(MC_NPPOOL, Pfn); MmReleasePageMemoryConsumer(MC_NPPOOL, Pfn);
} }
} }
*PageDir =MmGlobalKernelPageDirectory[PdeOffset]; InterlockedExchangeUL(PageDir, MmGlobalKernelPageDirectory[PdeOffset]);
} }
else else
{ {
@ -907,7 +907,7 @@ MmRawDeleteVirtualMapping(PVOID Address)
/* /*
* Set the entry to zero * Set the entry to zero
*/ */
*Pt = 0; InterlockedExchangeUL(Pt, 0);
MiFlushTlb(Pt, Address); MiFlushTlb(Pt, Address);
} }
} }
@ -1596,7 +1596,7 @@ MmCreateVirtualMappingForKernel(PVOID Address,
{ {
KEBUGCHECK(0); KEBUGCHECK(0);
} }
*Pt = PFN_TO_PTE(Pages[i]) | Attributes; InterlockedExchangeUL(Pt, PFN_TO_PTE(Pages[i]) | Attributes);
} }
} }
@ -1665,7 +1665,7 @@ MmCreatePageFileMapping(PEPROCESS Process,
{ {
MmMarkPageUnmapped(PTE_TO_PFN((Pte))); MmMarkPageUnmapped(PTE_TO_PFN((Pte)));
} }
*Pt = SwapEntry << 1; InterlockedExchangeUL(Pt, SwapEntry << 1);
if (Pte != 0) if (Pte != 0)
{ {
MiFlushTlb(Pt, Address); MiFlushTlb(Pt, Address);
@ -1866,7 +1866,7 @@ MmCreateVirtualMappingUnsafe(PEPROCESS Process,
{ {
MmMarkPageUnmapped(PTE_TO_PFN((Pte))); MmMarkPageUnmapped(PTE_TO_PFN((Pte)));
} }
*Pt = PFN_TO_PTE(Pages[i]) | Attributes; InterlockedExchangeUL(Pt, PFN_TO_PTE(Pages[i]) | Attributes);
if (Address < (PVOID)KERNEL_BASE && if (Address < (PVOID)KERNEL_BASE &&
Process->AddressSpace.PageTableRefCountTable != NULL && Process->AddressSpace.PageTableRefCountTable != NULL &&
Attributes & PA_PRESENT) Attributes & PA_PRESENT)
@ -2027,7 +2027,7 @@ MmSetPageProtect(PEPROCESS Process, PVOID Address, ULONG flProtect)
{ {
KEBUGCHECK(0); KEBUGCHECK(0);
} }
*Pt = PAGE_MASK(*Pt) | Attributes | (*Pt & (PA_ACCESSED|PA_DIRTY)); InterlockedExchange(Pt, PAGE_MASK(*Pt) | Attributes | (*Pt & (PA_ACCESSED|PA_DIRTY)));
MiFlushTlb(Pt, Address); MiFlushTlb(Pt, Address);
} }
} }
@ -2174,6 +2174,7 @@ MmInitGlobalKernelPageDirectory(VOID)
if (Ke386GlobalPagesEnabled) if (Ke386GlobalPagesEnabled)
{ {
MmGlobalKernelPageDirectoryForPAE[i] |= PA_GLOBAL; MmGlobalKernelPageDirectoryForPAE[i] |= PA_GLOBAL;
CurrentPageDirectory[i] |= PA_GLOBAL;
} }
} }
} }
@ -2190,6 +2191,7 @@ MmInitGlobalKernelPageDirectory(VOID)
if (Ke386GlobalPagesEnabled) if (Ke386GlobalPagesEnabled)
{ {
MmGlobalKernelPageDirectory[i] |= PA_GLOBAL; MmGlobalKernelPageDirectory[i] |= PA_GLOBAL;
CurrentPageDirectory[i] |= PA_GLOBAL;
} }
} }
} }