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MdeModulePkg/UfsBlockIoPei: Support IoMmu

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V2 changes:
Resource cleanup logic update in UfsEndOfPei().

V1 history:
Update the UfsBlockIoPei 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 44a0857ec6)
This commit is contained in:
Hao Wu
2017-10-18 13:37:56 +08:00
committed by Star Zeng
parent 776788926c
commit 702a585f6d
7 changed files with 535 additions and 38 deletions
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60
MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsBlockIoPei.c
View File

@@ -107,13 +107,20 @@ UFS_PEIM_HC_PRIVATE_DATA gUfsHcPeimTemplate = {
0
}
},
{ // EndOfPeiNotifyList
(EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiEndOfPeiSignalPpiGuid,
UfsEndOfPei
},
0, // UfsHcBase
0, // Capabilities
0, // TaskTag
0, // UtpTrlBase
0, // Nutrs
NULL, // TrlMapping
0, // UtpTmrlBase
0, // Nutmrs
NULL, // TmrlMapping
{ // Luns
{
UFS_LUN_0, // Ufs Common Lun 0
@@ -1061,6 +1068,54 @@ UfsBlockIoPeimReadBlocks2 (
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
UfsEndOfPei (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
IN VOID *Ppi
)
{
UFS_PEIM_HC_PRIVATE_DATA *Private;
Private = GET_UFS_PEIM_HC_PRIVATE_DATA_FROM_THIS_NOTIFY (NotifyDescriptor);
if ((Private->Pool != NULL) && (Private->Pool->Head != NULL)) {
UfsPeimFreeMemPool (Private->Pool);
}
if (Private->UtpTmrlBase != NULL) {
IoMmuFreeBuffer (
EFI_SIZE_TO_PAGES (Private->Nutmrs * sizeof (UTP_TMRD)),
Private->UtpTmrlBase,
Private->TmrlMapping
);
}
if (Private->UtpTrlBase != NULL) {
IoMmuFreeBuffer (
EFI_SIZE_TO_PAGES (Private->Nutrs * sizeof (UTP_TRD)),
Private->UtpTrlBase,
Private->TrlMapping
);
}
UfsControllerStop (Private);
return EFI_SUCCESS;
}
/**
The user code starts with this function.
@@ -1106,6 +1161,8 @@ InitializeUfsBlockIoPeim (
return EFI_DEVICE_ERROR;
}
IoMmuInit ();
Controller = 0;
MmioBase = 0;
while (TRUE) {
@@ -1185,7 +1242,8 @@ InitializeUfsBlockIoPeim (
}
}
Status = PeiServicesInstallPpi (&Private->BlkIoPpiList);
PeiServicesInstallPpi (&Private->BlkIoPpiList);
PeiServicesNotifyPpi (&Private->EndOfPeiNotifyList);
Controller++;
}