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127 lines
2.9 KiB
C
127 lines
2.9 KiB
C
/*
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* PROJECT: ReactOS Kernel
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* LICENSE: BSD - See COPYING.ARM in the top level directory
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* FILE: ntoskrnl/mm/ARM3/dynamic.c
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* PURPOSE: ARM Memory Manager Dynamic Physical Memory Support
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* PROGRAMMERS: ReactOS Portable Systems Group
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*/
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/* INCLUDES *******************************************************************/
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#include <ntoskrnl.h>
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#define NDEBUG
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#include <debug.h>
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#line 15 "ARM³::DYNAMIC"
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#define MODULE_INVOLVED_IN_ARM3
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#include "../ARM3/miarm.h"
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/* FUNCTIONS *****************************************************************/
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/*
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* @unimplemented
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*/
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NTSTATUS
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NTAPI
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MmAddPhysicalMemory (IN PPHYSICAL_ADDRESS StartAddress,
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IN OUT PLARGE_INTEGER NumberOfBytes)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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}
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/*
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* @unimplemented
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*/
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NTSTATUS
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NTAPI
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MmMarkPhysicalMemoryAsBad(IN PPHYSICAL_ADDRESS StartAddress,
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IN OUT PLARGE_INTEGER NumberOfBytes)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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}
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/*
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* @unimplemented
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*/
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NTSTATUS
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NTAPI
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MmMarkPhysicalMemoryAsGood(IN PPHYSICAL_ADDRESS StartAddress,
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IN OUT PLARGE_INTEGER NumberOfBytes)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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}
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/*
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* @unimplemented
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*/
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NTSTATUS
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NTAPI
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MmRemovePhysicalMemory(IN PPHYSICAL_ADDRESS StartAddress,
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IN OUT PLARGE_INTEGER NumberOfBytes)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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}
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/*
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* @implemented
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*/
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PPHYSICAL_MEMORY_RANGE
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NTAPI
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MmGetPhysicalMemoryRanges(VOID)
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{
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ULONG Size, i;
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PPHYSICAL_MEMORY_RANGE Entry, Buffer;
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KIRQL OldIrql;
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ASSERT(KeGetCurrentIrql() == PASSIVE_LEVEL);
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//
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// Calculate how much memory we'll need
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//
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Size = sizeof(PHYSICAL_MEMORY_RANGE) * (MmPhysicalMemoryBlock->NumberOfRuns + 1);
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//
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// Allocate a copy
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//
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Entry = Buffer = ExAllocatePoolWithTag(NonPagedPool, Size, 'hPmM');
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if (!Buffer) return NULL;
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//
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// Lock the PFN database
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//
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OldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock);
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//
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// Make sure it hasn't changed before we had acquired the lock
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//
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ASSERT(Size == (sizeof(PHYSICAL_MEMORY_RANGE) *
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(MmPhysicalMemoryBlock->NumberOfRuns + 1)));
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//
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// Now loop our block
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//
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for (i = 0; i < MmPhysicalMemoryBlock->NumberOfRuns; i++)
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{
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//
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// Copy the data, but format it into bytes
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//
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Entry->BaseAddress.QuadPart = MmPhysicalMemoryBlock->Run[i].BasePage << PAGE_SHIFT;
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Entry->NumberOfBytes.QuadPart = MmPhysicalMemoryBlock->Run[i].PageCount << PAGE_SHIFT;
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Entry++;
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}
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//
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// Last entry is empty
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//
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Entry->BaseAddress.QuadPart = 0;
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Entry->NumberOfBytes.QuadPart = 0;
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//
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// Release the lock and return
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//
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KeReleaseQueuedSpinLock(LockQueuePfnLock, OldIrql);
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return Buffer;
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}
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