REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1274
In current code, EhcMonitorAsyncRequests (timer handler) will do
unmap and map operations for AsyncIntTransfers to "Flush data from
PCI controller specific address to mapped system memory address".
EhcMonitorAsyncRequests
EhcFlushAsyncIntMap
PciIo->Unmap
IoMmu->SetAttribute
PciIo->Map
IoMmu->SetAttribute
This may impact the boot performance.
Since the data buffer for EhcMonitorAsyncRequests 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...@intel.com>
Cc: Hao Wu <hao.a...@intel.com>
Cc: Jian J Wang <jian.j.w...@intel.com>
Cc: Jiewen Yao <jiewen....@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.z...@intel.com>
---
MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c | 3 ++
MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.c | 77 +-------------------------------
MdeModulePkg/Bus/Pci/EhciDxe/EhciUrb.c | 38 ++++++++++++++--
MdeModulePkg/Bus/Pci/EhciDxe/EhciUrb.h | 33 +++++++-------
4 files changed, 57 insertions(+), 94 deletions(-)
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c
b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c
index 5569f4f9618b..764eeda58ba1 100644
--- a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c
+++ b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c
@@ -763,6 +763,7 @@ EhcControlTransfer (
Translator,
EHC_CTRL_TRANSFER,
Request,
+ FALSE,
Data,
*DataLength,
NULL,
@@ -906,6 +907,7 @@ EhcBulkTransfer (
Translator,
EHC_BULK_TRANSFER,
NULL,
+ FALSE,
Data[0],
*DataLength,
NULL,
@@ -1163,6 +1165,7 @@ EhcSyncInterruptTransfer (
Translator,
EHC_INT_TRANSFER_SYNC,
NULL,
+ FALSE,
Data,
*DataLength,
NULL,
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.c
b/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.c
index d38340e49c8d..f1edcf20e342 100644
--- a/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.c
+++ b/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.c
@@ -778,7 +778,6 @@ EhciDelAsyncIntTransfer (
EhcUnlinkQhFromPeriod (Ehc, Urb->Qh);
RemoveEntryList (&Urb->UrbList);
- gBS->FreePool (Urb->Data);
EhcFreeUrb (Ehc, Urb);
return EFI_SUCCESS;
}
@@ -809,7 +808,6 @@ EhciDelAllAsyncIntTransfers (
EhcUnlinkQhFromPeriod (Ehc, Urb->Qh);
RemoveEntryList (&Urb->UrbList);
- gBS->FreePool (Urb->Data);
EhcFreeUrb (Ehc, Urb);
}
}
@@ -849,16 +847,8 @@ EhciInsertAsyncIntTransfer (
IN UINTN Interval
)
{
- VOID *Data;
URB *Urb;
- Data = AllocatePool (DataLen);
-
- if (Data == NULL) {
- DEBUG ((DEBUG_ERROR, "%a: failed to allocate buffer\n", __FUNCTION__));
- return NULL;
- }
-
Urb = EhcCreateUrb (
Ehc,
DevAddr,
@@ -869,7 +859,8 @@ EhciInsertAsyncIntTransfer (
Hub,
EHC_INT_TRANSFER_ASYNC,
NULL,
- Data,
+ TRUE,
+ NULL,
DataLen,
Callback,
Context,
@@ -892,60 +883,6 @@ EhciInsertAsyncIntTransfer (
}
/**
- Flush data from PCI controller specific address to mapped system
- memory address.
-
- @param Ehc The EHCI device.
- @param Urb The URB to unmap.
-
- @retval EFI_SUCCESS Success to flush data to mapped system memory.
- @retval EFI_DEVICE_ERROR Fail to flush data to mapped system memory.
-
-**/
-EFI_STATUS
-EhcFlushAsyncIntMap (
- IN USB2_HC_DEV *Ehc,
- IN URB *Urb
- )
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS PhyAddr;
- EFI_PCI_IO_PROTOCOL_OPERATION MapOp;
- EFI_PCI_IO_PROTOCOL *PciIo;
- UINTN Len;
- VOID *Map;
-
- PciIo = Ehc->PciIo;
- Len = Urb->DataLen;
-
- if (Urb->Ep.Direction == EfiUsbDataIn) {
- MapOp = EfiPciIoOperationBusMasterWrite;
- } else {
- MapOp = EfiPciIoOperationBusMasterRead;
- }
-
- Status = PciIo->Unmap (PciIo, Urb->DataMap);
- if (EFI_ERROR (Status)) {
- goto ON_ERROR;
- }
-
- Urb->DataMap = NULL;
-
- Status = PciIo->Map (PciIo, MapOp, Urb->Data, &Len, &PhyAddr, &Map);
- if (EFI_ERROR (Status) || (Len != Urb->DataLen)) {
- goto ON_ERROR;
- }
-
- Urb->DataPhy = (VOID *) ((UINTN) PhyAddr);
- Urb->DataMap = Map;
- return EFI_SUCCESS;
-
-ON_ERROR:
- return EFI_DEVICE_ERROR;
-}
-
-
-/**
Update the queue head for next round of asynchronous transfer.
@param Ehc The EHCI device.
@@ -1050,7 +987,6 @@ EhcMonitorAsyncRequests (
BOOLEAN Finished;
UINT8 *ProcBuf;
URB *Urb;
- EFI_STATUS Status;
OldTpl = gBS->RaiseTPL (EHC_TPL);
Ehc = (USB2_HC_DEV *) Context;
@@ -1069,15 +1005,6 @@ EhcMonitorAsyncRequests (
}
//
- // Flush any PCI posted write transactions from a PCI host
- // bridge to system memory.
- //
- Status = EhcFlushAsyncIntMap (Ehc, Urb);
- if (EFI_ERROR (Status)) {
- DEBUG ((EFI_D_ERROR, "EhcMonitorAsyncRequests: Fail to Flush AsyncInt
Mapped Memeory\n"));
- }
-
- //
// Allocate a buffer then copy the transferred data for user.
// If failed to allocate the buffer, update the URB for next
// round of transfer. Ignore the data of this round.
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/EhciUrb.c
b/MdeModulePkg/Bus/Pci/EhciDxe/EhciUrb.c
index 6afb327df165..09c12776ecdb 100644
--- a/MdeModulePkg/Bus/Pci/EhciDxe/EhciUrb.c
+++ b/MdeModulePkg/Bus/Pci/EhciDxe/EhciUrb.c
@@ -339,6 +339,14 @@ EhcFreeUrb (
PciIo->Unmap (PciIo, Urb->DataMap);
}
+ if (Urb->AllocateCommonBuffer) {
+ PciIo->FreeBuffer (
+ PciIo,
+ EFI_SIZE_TO_PAGES (Urb->DataLen),
+ Urb->Data
+ );
+ }
+
if (Urb->Qh != NULL) {
//
// Ensure that this queue head has been unlinked from the
@@ -529,7 +537,8 @@ ON_ERROR:
@param Hub The transaction translator to use.
@param Type The transaction type.
@param Request The standard USB request for control transfer.
- @param Data The user data to 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.
@@ -549,6 +558,7 @@ EhcCreateUrb (
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Hub,
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,
@@ -596,8 +606,24 @@ EhcCreateUrb (
Ep->PollRate = EhcConvertPollRate (Interval);
Urb->Request = Request;
+ if (AllocateCommonBuffer) {
+ ASSERT (Data == NULL);
+ Status = Ehc->PciIo->AllocateBuffer (
+ Ehc->PciIo,
+ AllocateAnyPages,
+ EfiBootServicesData,
+ EFI_SIZE_TO_PAGES (DataLen),
+ &Data,
+ 0
+ );
+ if (EFI_ERROR (Status) || (Data == NULL)) {
+ FreePool (Urb);
+ return NULL;
+ }
+ }
Urb->Data = Data;
Urb->DataLen = DataLen;
+ Urb->AllocateCommonBuffer = AllocateCommonBuffer;
Urb->Callback = Callback;
Urb->Context = Context;
@@ -627,10 +653,14 @@ EhcCreateUrb (
if (Data != NULL) {
Len = DataLen;
- if (Ep->Direction == EfiUsbDataIn) {
- MapOp = EfiPciIoOperationBusMasterWrite;
+ if (Urb->AllocateCommonBuffer) {
+ MapOp = EfiPciIoOperationBusMasterCommonBuffer;
} else {
- MapOp = EfiPciIoOperationBusMasterRead;
+ if (Ep->Direction == EfiUsbDataIn) {
+ MapOp = EfiPciIoOperationBusMasterWrite;
+ } else {
+ MapOp = EfiPciIoOperationBusMasterRead;
+ }
}
Status = PciIo->Map (PciIo, MapOp, Data, &Len, &PhyAddr, &Map);
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/EhciUrb.h
b/MdeModulePkg/Bus/Pci/EhciDxe/EhciUrb.h
index 02e9af81be39..cb3599f9d361 100644
--- a/MdeModulePkg/Bus/Pci/EhciDxe/EhciUrb.h
+++ b/MdeModulePkg/Bus/Pci/EhciDxe/EhciUrb.h
@@ -3,7 +3,7 @@
This file contains URB request, each request is warpped in a
URB (Usb Request Block).
-Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -216,6 +216,7 @@ struct _URB {
EFI_USB_DEVICE_REQUEST *Request; // Control transfer only
VOID *RequestPhy; // Address of the mapped
request
VOID *RequestMap;
+ BOOLEAN AllocateCommonBuffer;
VOID *Data;
UINTN DataLen;
VOID *DataPhy; // Address of the mapped user
data
@@ -298,20 +299,21 @@ EhcFreeUrb (
/**
Create a new URB and its associated QTD.
- @param Ehc The EHCI device.
- @param DevAddr The device address.
- @param EpAddr Endpoint addrress & its direction.
- @param DevSpeed The device speed.
- @param Toggle Initial data toggle to use.
- @param MaxPacket The max packet length of the endpoint.
- @param Hub The transaction translator to use.
- @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 Interval The interval for interrupt transfer.
+ @param Ehc The EHCI device.
+ @param DevAddr The device address.
+ @param EpAddr Endpoint addrress & its direction.
+ @param DevSpeed The device speed.
+ @param Toggle Initial data toggle to use.
+ @param MaxPacket The max packet length of the endpoint.
+ @param Hub The transaction translator to use.
+ @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.
+ @param Interval The interval for interrupt transfer.
@return Created URB or NULL.
@@ -327,6 +329,7 @@ EhcCreateUrb (
IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Hub,
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,
--
2.7.0.windows.1
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