diff options
Diffstat (limited to 'MdeModulePkg/Bus/Ata/AhciPei/DmaMem.c')
| -rw-r--r-- | MdeModulePkg/Bus/Ata/AhciPei/DmaMem.c | 118 |
1 files changed, 63 insertions, 55 deletions
diff --git a/MdeModulePkg/Bus/Ata/AhciPei/DmaMem.c b/MdeModulePkg/Bus/Ata/AhciPei/DmaMem.c index 3a506d8c2c..c4c08988d5 100644 --- a/MdeModulePkg/Bus/Ata/AhciPei/DmaMem.c +++ b/MdeModulePkg/Bus/Ata/AhciPei/DmaMem.c @@ -20,15 +20,15 @@ GetIoMmu ( VOID
)
{
- EFI_STATUS Status;
- EDKII_IOMMU_PPI *IoMmu;
+ EFI_STATUS Status;
+ EDKII_IOMMU_PPI *IoMmu;
IoMmu = NULL;
Status = PeiServicesLocatePpi (
&gEdkiiIoMmuPpiGuid,
0,
NULL,
- (VOID **) &IoMmu
+ (VOID **)&IoMmu
);
if (!EFI_ERROR (Status) && (IoMmu != NULL)) {
return IoMmu;
@@ -58,48 +58,50 @@ GetIoMmu ( **/
EFI_STATUS
IoMmuMap (
- IN EDKII_IOMMU_OPERATION Operation,
- IN VOID *HostAddress,
- IN OUT UINTN *NumberOfBytes,
- OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
- OUT VOID **Mapping
+ IN EDKII_IOMMU_OPERATION Operation,
+ IN VOID *HostAddress,
+ IN OUT UINTN *NumberOfBytes,
+ OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
+ OUT VOID **Mapping
)
{
- EFI_STATUS Status;
- UINT64 Attribute;
- EDKII_IOMMU_PPI *IoMmu;
+ EFI_STATUS Status;
+ UINT64 Attribute;
+ EDKII_IOMMU_PPI *IoMmu;
IoMmu = GetIoMmu ();
if (IoMmu != NULL) {
Status = IoMmu->Map (
- IoMmu,
- Operation,
- HostAddress,
- NumberOfBytes,
- DeviceAddress,
- Mapping
- );
+ IoMmu,
+ Operation,
+ HostAddress,
+ NumberOfBytes,
+ DeviceAddress,
+ Mapping
+ );
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
+
switch (Operation) {
- case EdkiiIoMmuOperationBusMasterRead:
- case EdkiiIoMmuOperationBusMasterRead64:
- Attribute = EDKII_IOMMU_ACCESS_READ;
- break;
- case EdkiiIoMmuOperationBusMasterWrite:
- case EdkiiIoMmuOperationBusMasterWrite64:
- Attribute = EDKII_IOMMU_ACCESS_WRITE;
- break;
- case EdkiiIoMmuOperationBusMasterCommonBuffer:
- case EdkiiIoMmuOperationBusMasterCommonBuffer64:
- Attribute = EDKII_IOMMU_ACCESS_READ | EDKII_IOMMU_ACCESS_WRITE;
- break;
- default:
- ASSERT(FALSE);
- return EFI_INVALID_PARAMETER;
+ case EdkiiIoMmuOperationBusMasterRead:
+ case EdkiiIoMmuOperationBusMasterRead64:
+ Attribute = EDKII_IOMMU_ACCESS_READ;
+ break;
+ case EdkiiIoMmuOperationBusMasterWrite:
+ case EdkiiIoMmuOperationBusMasterWrite64:
+ Attribute = EDKII_IOMMU_ACCESS_WRITE;
+ break;
+ case EdkiiIoMmuOperationBusMasterCommonBuffer:
+ case EdkiiIoMmuOperationBusMasterCommonBuffer64:
+ Attribute = EDKII_IOMMU_ACCESS_READ | EDKII_IOMMU_ACCESS_WRITE;
+ break;
+ default:
+ ASSERT (FALSE);
+ return EFI_INVALID_PARAMETER;
}
+
Status = IoMmu->SetAttribute (
IoMmu,
*Mapping,
@@ -110,9 +112,10 @@ IoMmuMap ( }
} else {
*DeviceAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)HostAddress;
- *Mapping = NULL;
- Status = EFI_SUCCESS;
+ *Mapping = NULL;
+ Status = EFI_SUCCESS;
}
+
return Status;
}
@@ -127,11 +130,11 @@ IoMmuMap ( **/
EFI_STATUS
IoMmuUnmap (
- IN VOID *Mapping
+ IN VOID *Mapping
)
{
- EFI_STATUS Status;
- EDKII_IOMMU_PPI *IoMmu;
+ EFI_STATUS Status;
+ EDKII_IOMMU_PPI *IoMmu;
IoMmu = GetIoMmu ();
@@ -141,6 +144,7 @@ IoMmuUnmap ( } else {
Status = EFI_SUCCESS;
}
+
return Status;
}
@@ -175,7 +179,7 @@ IoMmuAllocateBuffer ( EFI_PHYSICAL_ADDRESS HostPhyAddress;
EDKII_IOMMU_PPI *IoMmu;
- *HostAddress = NULL;
+ *HostAddress = NULL;
*DeviceAddress = 0;
IoMmu = GetIoMmu ();
@@ -192,18 +196,19 @@ IoMmuAllocateBuffer ( return EFI_OUT_OF_RESOURCES;
}
- NumberOfBytes = EFI_PAGES_TO_SIZE(Pages);
- Status = IoMmu->Map (
- IoMmu,
- EdkiiIoMmuOperationBusMasterCommonBuffer,
- *HostAddress,
- &NumberOfBytes,
- DeviceAddress,
- Mapping
- );
+ NumberOfBytes = EFI_PAGES_TO_SIZE (Pages);
+ Status = IoMmu->Map (
+ IoMmu,
+ EdkiiIoMmuOperationBusMasterCommonBuffer,
+ *HostAddress,
+ &NumberOfBytes,
+ DeviceAddress,
+ Mapping
+ );
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
+
Status = IoMmu->SetAttribute (
IoMmu,
*Mapping,
@@ -221,10 +226,12 @@ IoMmuAllocateBuffer ( if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
- *HostAddress = (VOID *)(UINTN)HostPhyAddress;
+
+ *HostAddress = (VOID *)(UINTN)HostPhyAddress;
*DeviceAddress = HostPhyAddress;
- *Mapping = NULL;
+ *Mapping = NULL;
}
+
return Status;
}
@@ -242,13 +249,13 @@ IoMmuAllocateBuffer ( **/
EFI_STATUS
IoMmuFreeBuffer (
- IN UINTN Pages,
- IN VOID *HostAddress,
- IN VOID *Mapping
+ IN UINTN Pages,
+ IN VOID *HostAddress,
+ IN VOID *Mapping
)
{
- EFI_STATUS Status;
- EDKII_IOMMU_PPI *IoMmu;
+ EFI_STATUS Status;
+ EDKII_IOMMU_PPI *IoMmu;
IoMmu = GetIoMmu ();
@@ -259,5 +266,6 @@ IoMmuFreeBuffer ( } else {
Status = EFI_SUCCESS;
}
+
return Status;
}
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