diff options
Diffstat (limited to 'ArmPlatformPkg/ArmJunoPkg/Drivers/PciHostBridgeDxe/PciRootBridge.c')
| -rw-r--r-- | ArmPlatformPkg/ArmJunoPkg/Drivers/PciHostBridgeDxe/PciRootBridge.c | 745 |
1 files changed, 0 insertions, 745 deletions
diff --git a/ArmPlatformPkg/ArmJunoPkg/Drivers/PciHostBridgeDxe/PciRootBridge.c b/ArmPlatformPkg/ArmJunoPkg/Drivers/PciHostBridgeDxe/PciRootBridge.c deleted file mode 100644 index 10a4575c16..0000000000 --- a/ArmPlatformPkg/ArmJunoPkg/Drivers/PciHostBridgeDxe/PciRootBridge.c +++ /dev/null @@ -1,745 +0,0 @@ -/** @file
-* Implementation of the PCI Root Bridge Protocol for XPress-RICH3 PCIe Root Complex
-*
-* Copyright (c) 2011-2015, ARM Ltd. All rights reserved.
-*
-* 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
-* http://opensource.org/licenses/bsd-license.php
-*
-* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-*
-**/
-
-#include "PciHostBridge.h"
-
-#include <Library/DevicePathLib.h>
-#include <Library/DmaLib.h>
-
-#define CPUIO_FROM_ROOT_BRIDGE_INSTANCE(Instance) (Instance->HostBridge->CpuIo)
-#define METRONOME_FROM_ROOT_BRIDGE_INSTANCE(Instance) (Instance->HostBridge->Metronome)
-
-/**
- * PCI Root Bridge Instance Templates
- */
-STATIC CONST EFI_PCI_ROOT_BRIDGE_DEVICE_PATH gDevicePathTemplate = {
- {
- { ACPI_DEVICE_PATH,
- ACPI_DP,
- { (UINT8) (sizeof (ACPI_HID_DEVICE_PATH)),
- (UINT8) ((sizeof (ACPI_HID_DEVICE_PATH)) >> 8) }
- },
- EISA_PNP_ID (0x0A03),
- 0
- },
- {
- END_DEVICE_PATH_TYPE,
- END_ENTIRE_DEVICE_PATH_SUBTYPE,
- { END_DEVICE_PATH_LENGTH, 0 }
- }
-};
-
-STATIC CONST EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL gIoTemplate = {
- 0,
- PciRbPollMem,
- PciRbPollIo,
- {
- PciRbMemRead,
- PciRbMemWrite
- },
- {
- PciRbIoRead,
- PciRbIoWrite
- },
- {
- PciRbPciRead,
- PciRbPciWrite
- },
- PciRbCopyMem,
- PciRbMap,
- PciRbUnMap,
- PciRbAllocateBuffer,
- PciRbFreeBuffer,
- PciRbFlush,
- PciRbGetAttributes,
- PciRbSetAttributes,
- PciRbConfiguration,
- 0
- };
-
-typedef struct {
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR SpaceDesp[ResTypeMax+1];
- EFI_ACPI_END_TAG_DESCRIPTOR EndDesp;
-} RESOURCE_CONFIGURATION;
-
-
-RESOURCE_CONFIGURATION Configuration = {
- {{ACPI_ADDRESS_SPACE_DESCRIPTOR, 0x2B, ACPI_ADDRESS_SPACE_TYPE_IO , 0, 0, 0, 0, 0, 0, 0},
- {ACPI_ADDRESS_SPACE_DESCRIPTOR, 0x2B, ACPI_ADDRESS_SPACE_TYPE_MEM, 0, 0, 32, 0, 0, 0, 0},
- {ACPI_ADDRESS_SPACE_DESCRIPTOR, 0x2B, ACPI_ADDRESS_SPACE_TYPE_MEM, 0, 6, 32, 0, 0, 0, 0},
- {ACPI_ADDRESS_SPACE_DESCRIPTOR, 0x2B, ACPI_ADDRESS_SPACE_TYPE_MEM, 0, 0, 64, 0, 0, 0, 0},
- {ACPI_ADDRESS_SPACE_DESCRIPTOR, 0x2B, ACPI_ADDRESS_SPACE_TYPE_MEM, 0, 6, 64, 0, 0, 0, 0},
- {ACPI_ADDRESS_SPACE_DESCRIPTOR, 0x2B, ACPI_ADDRESS_SPACE_TYPE_BUS, 0, 0, 0, 0, 255, 0, 255}},
- {ACPI_END_TAG_DESCRIPTOR, 0}
-};
-
-
-EFI_STATUS
-PciRbPollMem (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINT64 Mask,
- IN UINT64 Value,
- IN UINT64 Delay,
- OUT UINT64 *Result
- )
-{
- EFI_STATUS Status;
- UINT64 NumberOfTicks;
- UINT32 Remainder;
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
- EFI_METRONOME_ARCH_PROTOCOL *Metronome;
-
- PCI_TRACE ("PciRbPollMem()");
-
- RootBridgeInstance = INSTANCE_FROM_ROOT_BRIDGE_IO_THIS (This);
- Metronome = METRONOME_FROM_ROOT_BRIDGE_INSTANCE (RootBridgeInstance);
-
- if (Result == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Width > EfiPciWidthUint64) {
- return EFI_INVALID_PARAMETER;
- }
-
- // No matter what, always do a single poll.
- Status = This->Mem.Read (This, Width, Address, 1, Result);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if ((*Result & Mask) == Value) {
- return EFI_SUCCESS;
- }
-
- if (Delay == 0) {
- return EFI_SUCCESS;
- }
-
- NumberOfTicks = DivU64x32Remainder (Delay, (UINT32) Metronome->TickPeriod, &Remainder);
- if (Remainder != 0) {
- NumberOfTicks += 1;
- }
- NumberOfTicks += 1;
-
- while (NumberOfTicks) {
- Metronome->WaitForTick (Metronome, 1);
-
- Status = This->Mem.Read (This, Width, Address, 1, Result);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- if ((*Result & Mask) == Value) {
- return EFI_SUCCESS;
- }
-
- NumberOfTicks -= 1;
- }
-
- return EFI_TIMEOUT;
-}
-
-EFI_STATUS
-PciRbPollIo (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINT64 Mask,
- IN UINT64 Value,
- IN UINT64 Delay,
- OUT UINT64 *Result
- )
-{
- EFI_STATUS Status;
- UINT64 NumberOfTicks;
- UINT32 Remainder;
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
- EFI_METRONOME_ARCH_PROTOCOL *Metronome;
-
- PCI_TRACE ("PciRbPollIo()");
-
- RootBridgeInstance = INSTANCE_FROM_ROOT_BRIDGE_IO_THIS (This);
- Metronome = METRONOME_FROM_ROOT_BRIDGE_INSTANCE (RootBridgeInstance);
-
- if (Result == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Width > EfiPciWidthUint64) {
- return EFI_INVALID_PARAMETER;
- }
-
- // No matter what, always do a single poll.
- Status = This->Io.Read (This, Width, Address, 1, Result);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if ((*Result & Mask) == Value) {
- return EFI_SUCCESS;
- }
-
- if (Delay == 0) {
- return EFI_SUCCESS;
- }
-
- NumberOfTicks = DivU64x32Remainder (Delay, (UINT32) Metronome->TickPeriod, &Remainder);
- if (Remainder != 0) {
- NumberOfTicks += 1;
- }
- NumberOfTicks += 1;
-
- while (NumberOfTicks) {
- Metronome->WaitForTick (Metronome, 1);
-
- Status = This->Io.Read (This, Width, Address, 1, Result);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- if ((*Result & Mask) == Value) {
- return EFI_SUCCESS;
- }
-
- NumberOfTicks -= 1;
- }
-
- return EFI_TIMEOUT;
-}
-
-EFI_STATUS
-PciRbMemRead (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN OUT VOID *Buffer
- )
-{
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
- EFI_CPU_IO2_PROTOCOL *CpuIo;
-
- PCI_TRACE ("PciRbMemRead()");
-
- RootBridgeInstance = INSTANCE_FROM_ROOT_BRIDGE_IO_THIS (This);
- CpuIo = CPUIO_FROM_ROOT_BRIDGE_INSTANCE (RootBridgeInstance);
-
- if (Buffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Width >= EfiPciWidthMaximum) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (((Address < PCI_MEM32_BASE) || (Address > (PCI_MEM32_BASE + PCI_MEM32_SIZE))) &&
- ((Address < PCI_MEM64_BASE) || (Address > (PCI_MEM64_BASE + PCI_MEM64_SIZE)))) {
- return EFI_INVALID_PARAMETER;
- }
-
- return CpuIo->Mem.Read (CpuIo, (EFI_CPU_IO_PROTOCOL_WIDTH)Width, Address, Count, Buffer);
-}
-
-EFI_STATUS
-PciRbMemWrite (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN OUT VOID *Buffer
- )
-{
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
- EFI_CPU_IO2_PROTOCOL *CpuIo;
-
- PCI_TRACE ("PciRbMemWrite()");
-
- RootBridgeInstance = INSTANCE_FROM_ROOT_BRIDGE_IO_THIS (This);
- CpuIo = CPUIO_FROM_ROOT_BRIDGE_INSTANCE (RootBridgeInstance);
-
- if (Buffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Width >= EfiPciWidthMaximum) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (((Address < PCI_MEM32_BASE) || (Address > (PCI_MEM32_BASE + PCI_MEM32_SIZE))) &&
- ((Address < PCI_MEM64_BASE) || (Address > (PCI_MEM64_BASE + PCI_MEM64_SIZE)))) {
- return EFI_INVALID_PARAMETER;
- }
-
- return CpuIo->Mem.Write (CpuIo, (EFI_CPU_IO_PROTOCOL_WIDTH)Width, Address, Count, Buffer);
-}
-
-EFI_STATUS
-PciRbIoRead (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN OUT VOID *Buffer
- )
-{
- PCI_TRACE ("PciRbIoRead()");
-
- if (Buffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Width >= EfiPciWidthMaximum) {
- return EFI_INVALID_PARAMETER;
- }
-
- // IO currently unsupported
- return EFI_INVALID_PARAMETER;
-}
-
-EFI_STATUS
-PciRbIoWrite (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN OUT VOID *Buffer
- )
-{
- PCI_TRACE ("PciRbIoWrite()");
-
- if (Buffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Width >= EfiPciWidthMaximum) {
- return EFI_INVALID_PARAMETER;
- }
-
- // IO currently unsupported
- return EFI_INVALID_PARAMETER;
-}
-
-EFI_STATUS
-PciRbPciRead (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 EfiAddress,
- IN UINTN Count,
- IN OUT VOID *Buffer
- )
-{
- UINT32 Offset;
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
- EFI_CPU_IO2_PROTOCOL *CpuIo;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS *EfiPciAddress;
- UINT64 Address;
-
- EfiPciAddress = (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS *)&EfiAddress;
- RootBridgeInstance = INSTANCE_FROM_ROOT_BRIDGE_IO_THIS (This);
- CpuIo = CPUIO_FROM_ROOT_BRIDGE_INSTANCE (RootBridgeInstance);
-
- if (Buffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Width >= EfiPciWidthMaximum) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (EfiPciAddress->ExtendedRegister) {
- Offset = EfiPciAddress->ExtendedRegister;
- } else {
- Offset = EfiPciAddress->Register;
- }
-
- // The UEFI PCI enumerator scans for devices at all possible addresses,
- // and ignores some PCI rules - this results in some hardware being
- // detected multiple times. We work around this by faking absent
- // devices
- if ((EfiPciAddress->Bus == 0) && ((EfiPciAddress->Device != 0) || (EfiPciAddress->Function != 0))) {
- *((UINT32 *)Buffer) = 0xffffffff;
- return EFI_SUCCESS;
- }
- if ((EfiPciAddress->Bus == 1) && ((EfiPciAddress->Device != 0) || (EfiPciAddress->Function != 0))) {
- *((UINT32 *)Buffer) = 0xffffffff;
- return EFI_SUCCESS;
- }
-
- // Work around incorrect class ID in the root bridge
- if ((EfiPciAddress->Bus == 0) && (EfiPciAddress->Device == 0) && (EfiPciAddress->Function == 0) && (Offset == 8)) {
- *((UINT32 *)Buffer) = 0x06040001;
- return EFI_SUCCESS;
- }
-
- Address = PCI_ECAM_BASE + ((EfiPciAddress->Bus << 20) |
- (EfiPciAddress->Device << 15) |
- (EfiPciAddress->Function << 12) | Offset);
-
- if ((Address < PCI_ECAM_BASE) || (Address > PCI_ECAM_BASE + PCI_ECAM_SIZE)) {
- return EFI_INVALID_PARAMETER;
- }
-
- return CpuIo->Mem.Read (CpuIo, (EFI_CPU_IO_PROTOCOL_WIDTH)Width, Address, Count, Buffer);
-}
-
-EFI_STATUS
-PciRbPciWrite (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 EfiAddress,
- IN UINTN Count,
- IN OUT VOID *Buffer
- )
-{
- UINT32 Offset;
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
- EFI_CPU_IO2_PROTOCOL *CpuIo;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS *EfiPciAddress;
- UINT64 Address;
-
- EfiPciAddress = (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS *)&EfiAddress;
- RootBridgeInstance = INSTANCE_FROM_ROOT_BRIDGE_IO_THIS (This);
- CpuIo = CPUIO_FROM_ROOT_BRIDGE_INSTANCE (RootBridgeInstance);
-
- if (Buffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Width >= EfiPciWidthMaximum) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (EfiPciAddress->ExtendedRegister)
- Offset = EfiPciAddress->ExtendedRegister;
- else
- Offset = EfiPciAddress->Register;
-
- Address = PCI_ECAM_BASE + ((EfiPciAddress->Bus << 20) |
- (EfiPciAddress->Device << 15) |
- (EfiPciAddress->Function << 12) | Offset);
-
- if (Address < PCI_ECAM_BASE || Address > PCI_ECAM_BASE + PCI_ECAM_SIZE) {
- return EFI_INVALID_PARAMETER;
- }
-
- return CpuIo->Mem.Write (CpuIo, (EFI_CPU_IO_PROTOCOL_WIDTH)Width, Address, Count, Buffer);
-}
-
-EFI_STATUS
-PciRbCopyMem (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 DestAddress,
- IN UINT64 SrcAddress,
- IN UINTN Count
- )
-{
- EFI_STATUS Status;
- BOOLEAN Direction;
- UINTN Stride;
- UINTN Index;
- UINT64 Result;
-
- PCI_TRACE ("PciRbCopyMem()");
-
- if (Width > EfiPciWidthUint64) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (DestAddress == SrcAddress) {
- return EFI_SUCCESS;
- }
-
- Stride = (UINTN)(1 << Width);
-
- Direction = TRUE;
- if ((DestAddress > SrcAddress) && (DestAddress < (SrcAddress + Count * Stride))) {
- Direction = FALSE;
- SrcAddress = SrcAddress + (Count-1) * Stride;
- DestAddress = DestAddress + (Count-1) * Stride;
- }
-
- for (Index = 0; Index < Count; Index++) {
- Status = PciRbMemRead (
- This,
- Width,
- SrcAddress,
- 1,
- &Result
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- Status = PciRbMemWrite (
- This,
- Width,
- DestAddress,
- 1,
- &Result
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if (Direction) {
- SrcAddress += Stride;
- DestAddress += Stride;
- } else {
- SrcAddress -= Stride;
- DestAddress -= Stride;
- }
- }
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-PciRbMap (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_OPERATION Operation,
- IN VOID *HostAddress,
- IN OUT UINTN *NumberOfBytes,
- OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
- OUT VOID **Mapping
- )
-{
- DMA_MAP_OPERATION DmaOperation;
-
- PCI_TRACE ("PciRbMap()");
-
- if (Operation == EfiPciOperationBusMasterRead) {
- DmaOperation = MapOperationBusMasterRead;
- } else if (Operation == EfiPciOperationBusMasterWrite) {
- DmaOperation = MapOperationBusMasterWrite;
- } else if (Operation == EfiPciOperationBusMasterCommonBuffer) {
- DmaOperation = MapOperationBusMasterCommonBuffer;
- } else {
- return EFI_INVALID_PARAMETER;
- }
- return DmaMap (DmaOperation, HostAddress, NumberOfBytes, DeviceAddress, Mapping);
-}
-
-EFI_STATUS
-PciRbUnMap (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN VOID *Mapping
- )
-{
- PCI_TRACE ("PciRbUnMap()");
- return DmaUnmap (Mapping);
-}
-
-EFI_STATUS
-PciRbAllocateBuffer (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_ALLOCATE_TYPE Type,
- IN EFI_MEMORY_TYPE MemoryType,
- IN UINTN Pages,
- IN OUT VOID **HostAddress,
- IN UINT64 Attributes
- )
-{
- PCI_TRACE ("PciRbAllocateBuffer()");
-
- if (Attributes & EFI_PCI_ATTRIBUTE_INVALID_FOR_ALLOCATE_BUFFER) {
- return EFI_UNSUPPORTED;
- }
-
- return DmaAllocateBuffer (MemoryType, Pages, HostAddress);
-}
-
-EFI_STATUS
-PciRbFreeBuffer (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN UINTN Pages,
- IN VOID *HostAddress
- )
-{
- PCI_TRACE ("PciRbFreeBuffer()");
- return DmaFreeBuffer (Pages, HostAddress);
-}
-
-EFI_STATUS
-PciRbFlush (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This
- )
-{
- PCI_TRACE ("PciRbFlush()");
-
- //TODO: Not supported yet
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-PciRbSetAttributes (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN UINT64 Attributes,
- IN OUT UINT64 *ResourceBase,
- IN OUT UINT64 *ResourceLength
- )
-{
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
-
- PCI_TRACE ("PciRbSetAttributes()");
-
- RootBridgeInstance = INSTANCE_FROM_ROOT_BRIDGE_IO_THIS (This);
-
- if (Attributes) {
- if ((Attributes & (~(RootBridgeInstance->Supports))) != 0) {
- return EFI_UNSUPPORTED;
- }
- }
-
- //TODO: Cannot allowed to change attributes
- if (Attributes & ~RootBridgeInstance->Attributes) {
- return EFI_UNSUPPORTED;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-PciRbGetAttributes (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- OUT UINT64 *Supported,
- OUT UINT64 *Attributes
- )
-{
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
-
- PCI_TRACE ("PciRbGetAttributes()");
-
- RootBridgeInstance = INSTANCE_FROM_ROOT_BRIDGE_IO_THIS (This);
-
- if (Attributes == NULL && Supported == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- // Set the return value for Supported and Attributes
- if (Supported) {
- *Supported = RootBridgeInstance->Supports;
- }
-
- if (Attributes) {
- *Attributes = RootBridgeInstance->Attributes;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-PciRbConfiguration (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- OUT VOID **Resources
- )
-{
- PCI_ROOT_BRIDGE_INSTANCE *RootBridge;
- UINTN Index;
-
- PCI_TRACE ("PciRbConfiguration()");
-
- RootBridge = INSTANCE_FROM_ROOT_BRIDGE_IO_THIS (This);
-
- for (Index = 0; Index < ResTypeMax; Index++) {
- //if (ResAlloc[Index].Length != 0) => Resource allocated
- if (RootBridge->ResAlloc[Index].Length != 0) {
- Configuration.SpaceDesp[Index].AddrRangeMin = RootBridge->ResAlloc[Index].Base;
- Configuration.SpaceDesp[Index].AddrRangeMax = RootBridge->ResAlloc[Index].Base + RootBridge->ResAlloc[Index].Length - 1;
- Configuration.SpaceDesp[Index].AddrLen = RootBridge->ResAlloc[Index].Length;
- }
- }
-
- // Set up Configuration for the bus
- Configuration.SpaceDesp[Index].AddrRangeMin = RootBridge->BusStart;
- Configuration.SpaceDesp[Index].AddrLen = RootBridge->BusLength;
-
- *Resources = &Configuration;
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-PciRbConstructor (
- IN PCI_HOST_BRIDGE_INSTANCE *HostBridge,
- IN UINT32 PciAcpiUid,
- IN UINT64 MemAllocAttributes
- )
-{
- PCI_ROOT_BRIDGE_INSTANCE* RootBridge;
- EFI_STATUS Status;
-
- PCI_TRACE ("PciRbConstructor()");
-
- // Allocate Memory for the Instance from a Template
- RootBridge = AllocateZeroPool (sizeof (PCI_ROOT_BRIDGE_INSTANCE));
- if (RootBridge == NULL) {
- PCI_TRACE ("PciRbConstructor(): ERROR: Out of Resources");
- return EFI_OUT_OF_RESOURCES;
- }
- RootBridge->Signature = PCI_ROOT_BRIDGE_SIGNATURE;
- CopyMem (&(RootBridge->DevicePath), &gDevicePathTemplate, sizeof (EFI_PCI_ROOT_BRIDGE_DEVICE_PATH));
- CopyMem (&(RootBridge->Io), &gIoTemplate, sizeof (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL));
-
- // Set Parent Handle
- RootBridge->Io.ParentHandle = HostBridge->Handle;
-
- // Attach the Root Bridge to the PCI Host Bridge Instance
- RootBridge->HostBridge = HostBridge;
-
- // Set Device Path for this Root Bridge
- RootBridge->DevicePath.Acpi.UID = PciAcpiUid;
-
- RootBridge->BusStart = FixedPcdGet32 (PcdPciBusMin);
- RootBridge->BusLength = FixedPcdGet32 (PcdPciBusMax) - FixedPcdGet32 (PcdPciBusMin) + 1;
-
- // PCI Attributes
- RootBridge->Supports = 0;
- RootBridge->Attributes = 0;
-
- // Install Protocol Instances. It will also generate a device handle for the PCI Root Bridge
- Status = gBS->InstallMultipleProtocolInterfaces (
- &RootBridge->Handle,
- &gEfiDevicePathProtocolGuid, &RootBridge->DevicePath,
- &gEfiPciRootBridgeIoProtocolGuid, &RootBridge->Io,
- NULL
- );
- ASSERT (RootBridge->Signature == PCI_ROOT_BRIDGE_SIGNATURE);
- if (EFI_ERROR (Status)) {
- PCI_TRACE ("PciRbConstructor(): ERROR: Fail to install Protocol Interfaces");
- FreePool (RootBridge);
- return EFI_DEVICE_ERROR;
- }
-
- HostBridge->RootBridge = RootBridge;
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-PciRbDestructor (
- IN PCI_ROOT_BRIDGE_INSTANCE* RootBridge
- )
-{
- EFI_STATUS Status;
-
- Status = gBS->UninstallMultipleProtocolInterfaces (
- RootBridge->Handle,
- &gEfiDevicePathProtocolGuid, &RootBridge->DevicePath,
- &gEfiPciRootBridgeIoProtocolGuid, &RootBridge->Io,
- NULL
- );
-
- FreePool (RootBridge);
-
- return Status;
-}
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