sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

MdeModulePkg/SdBlockIoPei: Support IoMmu

Browse Source 
Update the SdBlockIoPei driver to consume IOMMU_PPI to allocate DMA
buffer.

If no IOMMU_PPI exists, this driver still calls PEI service
to allocate DMA buffer, with assumption that DRAM==DMA.

This is a compatible change.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
(cherry picked from commit 77af86688c)
This commit is contained in:
Hao Wu
2017-10-30 13:49:31 +08:00
committed by Star Zeng
parent b16a16d30c
commit e4961ec4a2
7 changed files with 483 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
MdeModulePkg/Bus/Sd/SdBlockIoPei/SdBlockIoPei.c
View File

@@ -1,6 +1,6 @@
/** @file
Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2015 - 2017, 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
@@ -64,6 +64,11 @@ SD_PEIM_HC_PRIVATE_DATA gSdHcPrivateTemplate = {
&gEfiPeiVirtualBlockIo2PpiGuid,
NULL
},
{
(EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiEndOfPeiSignalPpiGuid,
SdBlockIoPeimEndOfPei
},
{ // Slot
{
0,
@@ -465,6 +470,36 @@ SdBlockIoPeimReadBlocks2 (
return Status;
}
/**
One notified function to cleanup the allocated DMA buffers at the end of PEI.
@param[in] PeiServices Pointer to PEI Services Table.
@param[in] NotifyDescriptor Pointer to the descriptor for the Notification
event that caused this function to execute.
@param[in] Ppi Pointer to the PPI data associated with this function.
@retval EFI_SUCCESS The function completes successfully
**/
EFI_STATUS
EFIAPI
SdBlockIoPeimEndOfPei (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
IN VOID *Ppi
)
{
SD_PEIM_HC_PRIVATE_DATA *Private;
Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS_NOTIFY (NotifyDescriptor);
if ((Private->Pool != NULL) && (Private->Pool->Head != NULL)) {
SdPeimFreeMemPool (Private->Pool);
}
return EFI_SUCCESS;
}
/**
The user code starts with this function.
@@ -519,6 +554,8 @@ InitializeSdBlockIoPeim (
return EFI_DEVICE_ERROR;
}
IoMmuInit ();
Controller = 0;
MmioBase = NULL;
while (TRUE) {
@@ -610,6 +647,11 @@ InitializeSdBlockIoPeim (
Controller++;
if (!EFI_ERROR (Status)) {
PeiServicesInstallPpi (&Private->BlkIoPpiList);
PeiServicesNotifyPpi (&Private->EndOfPeiNotifyList);
} else {
if (Private->Pool->Head != NULL) {
SdPeimFreeMemPool (Private->Pool);
}
}
}