Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu...@intel.com>
Cc: Feng Tian <feng.t...@intel.com>
Cc: Jeff Fan <jeff....@intel.com>
---
MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c | 70 ++++++++++++----------------------
1 file changed, 24 insertions(+), 46 deletions(-)
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c
b/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c
index 4160632..50ed866 100644
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c
@@ -1,7 +1,7 @@
/** @file
EFI PCI IO protocol functions implementation for PCI Bus module.
-Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2016, 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
@@ -1774,9 +1774,8 @@ PciIoGetBarAttributes (
OUT VOID **Resources OPTIONAL
)
{
- UINT8 *Configuration;
PCI_IO_DEVICE *PciIoDevice;
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *AddressSpace;
+ EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptor;
EFI_ACPI_END_TAG_DESCRIPTOR *End;
PciIoDevice = PCI_IO_DEVICE_FROM_PCI_IO_THIS (This);
@@ -1798,19 +1797,18 @@ PciIoGetBarAttributes (
}
if (Resources != NULL) {
- Configuration = AllocateZeroPool (sizeof
(EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) + sizeof (EFI_ACPI_END_TAG_DESCRIPTOR));
- if (Configuration == NULL) {
+ Descriptor = AllocateZeroPool (sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR)
+ sizeof (EFI_ACPI_END_TAG_DESCRIPTOR));
+ if (Descriptor == NULL) {
return EFI_OUT_OF_RESOURCES;
}
- AddressSpace = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Configuration;
+ *Resources = Descriptor;
- AddressSpace->Desc = ACPI_ADDRESS_SPACE_DESCRIPTOR;
- AddressSpace->Len = (UINT16) (sizeof
(EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) - 3);
-
- AddressSpace->AddrRangeMin = PciIoDevice->PciBar[BarIndex].BaseAddress;
- AddressSpace->AddrLen = PciIoDevice->PciBar[BarIndex].Length;
- AddressSpace->AddrRangeMax = PciIoDevice->PciBar[BarIndex].Alignment;
+ Descriptor->Desc = ACPI_ADDRESS_SPACE_DESCRIPTOR;
+ Descriptor->Len = (UINT16) (sizeof
(EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) - 3);
+ Descriptor->AddrRangeMin = PciIoDevice->PciBar[BarIndex].BaseAddress;
+ Descriptor->AddrLen = PciIoDevice->PciBar[BarIndex].Length;
+ Descriptor->AddrRangeMax = PciIoDevice->PciBar[BarIndex].Alignment;
switch (PciIoDevice->PciBar[BarIndex].BarType) {
case PciBarTypeIo16:
@@ -1818,59 +1816,41 @@ PciIoGetBarAttributes (
//
// Io
//
- AddressSpace->ResType = ACPI_ADDRESS_SPACE_TYPE_IO;
- break;
-
- case PciBarTypeMem32:
- //
- // Mem
- //
- AddressSpace->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;
- //
- // 32 bit
- //
- AddressSpace->AddrSpaceGranularity = 32;
+ Descriptor->ResType = ACPI_ADDRESS_SPACE_TYPE_IO;
break;
case PciBarTypePMem32:
//
- // Mem
- //
- AddressSpace->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;
- //
// prefechable
//
- AddressSpace->SpecificFlag = 0x6;
- //
- // 32 bit
- //
- AddressSpace->AddrSpaceGranularity = 32;
- break;
+ Descriptor->SpecificFlag =
EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE;
- case PciBarTypeMem64:
+ case PciBarTypeMem32:
//
// Mem
//
- AddressSpace->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;
+ Descriptor->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;
//
- // 64 bit
+ // 32 bit
//
- AddressSpace->AddrSpaceGranularity = 64;
+ Descriptor->AddrSpaceGranularity = 32;
break;
case PciBarTypePMem64:
//
- // Mem
+ // prefechable
//
- AddressSpace->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;
+ Descriptor->SpecificFlag =
EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE;
+
+ case PciBarTypeMem64:
//
- // prefechable
+ // Mem
//
- AddressSpace->SpecificFlag = 0x6;
+ Descriptor->ResType = ACPI_ADDRESS_SPACE_TYPE_MEM;
//
// 64 bit
//
- AddressSpace->AddrSpaceGranularity = 64;
+ Descriptor->AddrSpaceGranularity = 64;
break;
default:
@@ -1880,11 +1860,9 @@ PciIoGetBarAttributes (
//
// put the checksum
//
- End = (EFI_ACPI_END_TAG_DESCRIPTOR *) (AddressSpace + 1);
+ End = (EFI_ACPI_END_TAG_DESCRIPTOR *) (Descriptor + 1);
End->Desc = ACPI_END_TAG_DESCRIPTOR;
End->Checksum = 0;
-
- *Resources = Configuration;
}
return EFI_SUCCESS;
--
2.7.0.windows.1
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