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MdeModulePkg XhciDxe: Use common buffer for AsyncInterruptTransfer

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V3:
Call XhcFreeUrb after XhcCreateTransferTrb fails in XhcCreateTrb.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1274

In current code, XhcMonitorAsyncRequests (timer handler) will do
unmap and map operations for AsyncIntTransfers to "Flush data from
PCI controller specific address to mapped system memory address".
XhcMonitorAsyncRequests
  XhcFlushAsyncIntMap
    PciIo->Unmap
      IoMmu->SetAttribute
    PciIo->Map
      IoMmu->SetAttribute

This may impact the boot performance.

Since the data buffer for XhcMonitorAsyncRequests is internal
buffer, we can allocate common buffer by PciIo->AllocateBuffer
and map the buffer with EfiPciIoOperationBusMasterCommonBuffer,
then the unmap and map operations can be removed.

///
/// Provides both read and write access to system memory by
/// both the processor and a bus master. The buffer is coherent
/// from both the processor's and the bus master's point of view.
///
EfiPciIoOperationBusMasterCommonBuffer,

Test done:
USB KB works normally.
USB disk read/write works normally.

Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
This commit is contained in:
Star Zeng
2018-10-25 16:20:27 +08:00
parent 4f792685e4
commit 7779209971
3 changed files with 63 additions and 103 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.h
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@@ -172,6 +172,7 @@ typedef struct _URB {
//
USB_ENDPOINT Ep;
EFI_USB_DEVICE_REQUEST *Request;
BOOLEAN AllocateCommonBuffer;
VOID *Data;
UINTN DataLen;
VOID *DataPhy;
@@ -1432,17 +1433,18 @@ XhcSetTrDequeuePointer (
/**
Create a new URB for a new transaction.
@param Xhc The XHCI Instance
@param DevAddr The device address
@param EpAddr Endpoint addrress
@param DevSpeed The device speed
@param MaxPacket The max packet length of the endpoint
@param Type The transaction type
@param Request The standard USB request for control transfer
@param Data The user data to transfer
@param DataLen The length of data buffer
@param Callback The function to call when data is transferred
@param Context The context to the callback
@param Xhc The XHCI Instance
@param BusAddr The logical device address assigned by UsbBus driver
@param EpAddr Endpoint addrress
@param DevSpeed The device speed
@param MaxPacket The max packet length of the endpoint
@param Type The transaction type
@param Request The standard USB request for control transfer
@param AllocateCommonBuffer Indicate whether need to allocate common buffer for data transfer
@param Data The user data to transfer, NULL if AllocateCommonBuffer is TRUE
@param DataLen The length of data buffer
@param Callback The function to call when data is transferred
@param Context The context to the callback
@return Created URB or NULL
@@ -1450,12 +1452,13 @@ XhcSetTrDequeuePointer (
URB*
XhcCreateUrb (
IN USB_XHCI_INSTANCE *Xhc,
IN UINT8 DevAddr,
IN UINT8 BusAddr,
IN UINT8 EpAddr,
IN UINT8 DevSpeed,
IN UINTN MaxPacket,
IN UINTN Type,
IN EFI_USB_DEVICE_REQUEST *Request,
IN BOOLEAN AllocateCommonBuffer,
IN VOID *Data,
IN UINTN DataLen,
IN EFI_ASYNC_USB_TRANSFER_CALLBACK Callback,