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[STORPORT] Implement parts of StorPortGetPhysicalAddress() that handle the uncached extension.

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CORE-13866
This commit is contained in:
Eric Kohl 2017-10-21 21:55:42 +02:00
parent ec4fe62118
commit f9f21574ba
2 changed files with 40 additions and 12 deletions
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4
drivers/storage/port/storport/precomp.h
View file

@ -97,8 +97,8 @@ typedef struct _FDO_DEVICE_EXTENSION
BUS_INTERFACE_STANDARD BusInterface;
BOOLEAN BusInitialized;
PMAPPED_ADDRESS MappedAddressList;
PVOID UncachedExtensionBase;
PVOID UncachedExtensionVirtualBase;
PHYSICAL_ADDRESS UncachedExtensionPhysicalBase;
ULONG UncachedExtensionSize;
} FDO_DEVICE_EXTENSION, *PFDO_DEVICE_EXTENSION;

48
drivers/storage/port/storport/storport.c
View file

@ -683,7 +683,7 @@ StorPortGetLogicalUnit(
/*
* @unimplemented
* @implemented
*/
STORPORT_API
STOR_PHYSICAL_ADDRESS
@ -694,10 +694,37 @@ StorPortGetPhysicalAddress(
_In_ PVOID VirtualAddress,
_Out_ ULONG *Length)
{
PMINIPORT_DEVICE_EXTENSION MiniportExtension;
PFDO_DEVICE_EXTENSION DeviceExtension;
STOR_PHYSICAL_ADDRESS PhysicalAddress;
ULONG_PTR Offset;
DPRINT1("StorPortGetPhysicalAddress(%p %p %p %p)\n",
HwDeviceExtension, Srb, VirtualAddress, Length);
/* Get the miniport extension */
MiniportExtension = CONTAINING_RECORD(HwDeviceExtension,
MINIPORT_DEVICE_EXTENSION,
HwDeviceExtension);
DPRINT1("HwDeviceExtension %p MiniportExtension %p\n",
HwDeviceExtension, MiniportExtension);
DeviceExtension = MiniportExtension->Miniport->DeviceExtension;
/* Inside of the uncached extension? */
if (((ULONG_PTR)VirtualAddress >= (ULONG_PTR)DeviceExtension->UncachedExtensionVirtualBase) &&
((ULONG_PTR)VirtualAddress <= (ULONG_PTR)DeviceExtension->UncachedExtensionVirtualBase + DeviceExtension->UncachedExtensionSize))
{
Offset = (ULONG_PTR)VirtualAddress - (ULONG_PTR)DeviceExtension->UncachedExtensionVirtualBase;
PhysicalAddress.QuadPart = DeviceExtension->UncachedExtensionPhysicalBase.QuadPart + Offset;
*Length = DeviceExtension->UncachedExtensionSize - Offset;
return PhysicalAddress;
}
// FIXME
UNIMPLEMENTED;
*Length = 0;
@ -769,8 +796,8 @@ StorPortGetUncachedExtension(
DeviceExtension = MiniportExtension->Miniport->DeviceExtension;
/* Return the uncached extension base address if we already have one */
if (DeviceExtension->UncachedExtensionBase != NULL)
return DeviceExtension->UncachedExtensionBase;
if (DeviceExtension->UncachedExtensionVirtualBase != NULL)
return DeviceExtension->UncachedExtensionVirtualBase;
// FIXME: Set DMA stuff here?
@ -778,17 +805,18 @@ StorPortGetUncachedExtension(
Alignment.QuadPart = 0;
LowestAddress.QuadPart = 0;
HighestAddress.QuadPart = 0x00000000FFFFFFFF;
DeviceExtension->UncachedExtensionBase = MmAllocateContiguousMemorySpecifyCache(NumberOfBytes,
LowestAddress,
HighestAddress,
Alignment,
MmCached);
if (DeviceExtension->UncachedExtensionBase == NULL)
DeviceExtension->UncachedExtensionVirtualBase = MmAllocateContiguousMemorySpecifyCache(NumberOfBytes,
LowestAddress,
HighestAddress,
Alignment,
MmCached);
if (DeviceExtension->UncachedExtensionVirtualBase == NULL)
return NULL;
DeviceExtension->UncachedExtensionPhysicalBase = MmGetPhysicalAddress(DeviceExtension->UncachedExtensionVirtualBase);
DeviceExtension->UncachedExtensionSize = NumberOfBytes;
return DeviceExtension->UncachedExtensionBase;
return DeviceExtension->UncachedExtensionVirtualBase;
}