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Initial implementaions of MmAllocateContiguousMemorySpecifyCache() and MmFreeContiguousMemorySpecifyCache()

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svn path=/trunk/; revision=7360
This commit is contained in:
Jason Filby
2003-12-31 05:33:04 +00:00
parent 6ba4d142ab
commit 633f796e40
20 changed files with 278 additions and 58 deletions
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reactos/hal/halx86/adapter.c
+21 -3
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@@ -1,4 +1,4 @@
/* $Id: adapter.c,v 1.9 2003/12/28 22:38:09 fireball Exp $
/* $Id: adapter.c,v 1.10 2003/12/31 05:33:03 jfilby Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@@ -49,7 +49,9 @@ HalAllocateAdapterChannel(
* - there are many unhandled cases
*/
{
LARGE_INTEGER MinAddress;
LARGE_INTEGER MaxAddress;
LARGE_INTEGER BoundryAddressMultiple;
IO_ALLOCATION_ACTION Retval;
assert(KeGetCurrentIrql() == DISPATCH_LEVEL);
@@ -68,7 +70,9 @@ HalAllocateAdapterChannel(
return STATUS_SUCCESS;
/* 24-bit max address due to 16-bit dma controllers */
MinAddress.QuadPart = 0x0000000;
MaxAddress.QuadPart = 0x1000000;
BoundryAddressMultiple.QuadPart = 0;
/* why 64K alignment? */
/*
@@ -77,7 +81,12 @@ HalAllocateAdapterChannel(
* that. This can be optimized.
*/
AdapterObject->MapRegisterBase = MmAllocateContiguousAlignedMemory(
NumberOfMapRegisters * PAGE_SIZE, MaxAddress, 0x10000 );
NumberOfMapRegisters * PAGE_SIZE,
MinAddress,
MaxAddress,
BoundryAddressMultiple,
MmCached,
0x10000 );
if(!AdapterObject->MapRegisterBase)
return STATUS_INSUFFICIENT_RESOURCES;
@@ -188,6 +197,8 @@ IoFreeAdapterChannel (PADAPTER_OBJECT AdapterObject)
*/
{
LARGE_INTEGER MaxAddress;
LARGE_INTEGER MinAddress;
LARGE_INTEGER BoundryAddressMultiple;
PWAIT_CONTEXT_BLOCK WaitContextBlock;
IO_ALLOCATION_ACTION Retval;
@@ -206,10 +217,17 @@ IoFreeAdapterChannel (PADAPTER_OBJECT AdapterObject)
*/
/* 24-bit max address due to 16-bit dma controllers */
MinAddress.QuadPart = 0x0000000;
MaxAddress.QuadPart = 0x1000000;
BoundryAddressMultiple.QuadPart = 0;
AdapterObject->MapRegisterBase = MmAllocateContiguousAlignedMemory(
WaitContextBlock->NumberOfMapRegisters * PAGE_SIZE, MaxAddress, 0x10000 );
WaitContextBlock->NumberOfMapRegisters * PAGE_SIZE,
MinAddress,
MaxAddress,
BoundryAddressMultiple,
MmCached,
0x10000 );
if(!AdapterObject->MapRegisterBase)
return;