diff options
| -rw-r--r-- | MdePkg/Library/DxePciLibPciRootBridgeIo/DxePciLibPciRootBridgeIo.inf | 55 | ||||
| -rw-r--r-- | MdePkg/Library/DxePciLibPciRootBridgeIo/PciLib.c | 1390 | ||||
| -rw-r--r-- | MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/DxePciSegmentLibPciRootBridgeIo.inf | 58 | ||||
| -rw-r--r-- | MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/PciSegmentLib.c | 1469 | ||||
| -rw-r--r-- | MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/PciSegmentLib.h | 59 | ||||
| -rw-r--r-- | MdePkg/Library/PeiPciLibPciCfg2/PciLib.c | 1372 | ||||
| -rw-r--r-- | MdePkg/Library/PeiPciLibPciCfg2/PeiPciLibPciCfg2.inf | 55 | ||||
| -rw-r--r-- | MdePkg/Library/PeiPciSegmentLibPciCfg2/PciSegmentLib.c | 1387 | ||||
| -rw-r--r-- | MdePkg/Library/PeiPciSegmentLibPciCfg2/PeiPciSegmentLibPciCfg2.inf | 52 | ||||
| -rw-r--r-- | MdePkg/Library/UefiPalLib/UefiPalLib.c | 126 | ||||
| -rw-r--r-- | MdePkg/Library/UefiPalLib/UefiPalLib.inf | 47 | ||||
| -rw-r--r-- | MdePkg/Library/UefiSalLib/UefiSalLib.c | 138 | ||||
| -rw-r--r-- | MdePkg/Library/UefiSalLib/UefiSalLib.inf | 45 | ||||
| -rw-r--r-- | MdePkg/MdePkg.dsc | 7 |
14 files changed, 6259 insertions, 1 deletions
diff --git a/MdePkg/Library/DxePciLibPciRootBridgeIo/DxePciLibPciRootBridgeIo.inf b/MdePkg/Library/DxePciLibPciRootBridgeIo/DxePciLibPciRootBridgeIo.inf new file mode 100644 index 0000000000..31df9a80f9 --- /dev/null +++ b/MdePkg/Library/DxePciLibPciRootBridgeIo/DxePciLibPciRootBridgeIo.inf @@ -0,0 +1,55 @@ +# @file
+# Component description file for PCI Lib using PCI Root Bridge I/O Protocol
+#
+# This library produces the APIs from the PCI Library and implements these APIs
+# by calling into the PCI Root Bridge I/O Protocol. The PCI Root Bridge I/O Protocol is
+# typically produced by a chipset specific DXE driver.
+# This library binds to the first PCI Root Bridge I/O Protocol in the platform. As a result,
+# it should only be used on platforms that contain a single PCI root bridge.
+#
+# Copyright (c) 2007, Intel Corporation.
+#
+# 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.
+#
+#
+#
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = DxePciLibPciRootBridgeIo
+ FILE_GUID = 90EC42CB-B780-4eb8-8E99-C8E3E5F37530
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PciLib|DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER DXE_SAL_DRIVER UEFI_DRIVER UEFI_APPLICATION
+ EDK_RELEASE_VERSION = 0x00020000
+ EFI_SPECIFICATION_VERSION = 0x00020000
+
+ CONSTRUCTOR = PciLibConstructor
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC
+#
+
+[Sources.common]
+ PciLib.c
+
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+
+[LibraryClasses]
+ BaseLib
+ UefiBootServicesTableLib
+ DebugLib
+
+[Protocols]
+ gEfiPciRootBridgeIoProtocolGuid # PROTOCOL ALWAYS_CONSUMED
+
diff --git a/MdePkg/Library/DxePciLibPciRootBridgeIo/PciLib.c b/MdePkg/Library/DxePciLibPciRootBridgeIo/PciLib.c new file mode 100644 index 0000000000..3c690aa70a --- /dev/null +++ b/MdePkg/Library/DxePciLibPciRootBridgeIo/PciLib.c @@ -0,0 +1,1390 @@ +/** @file
+ PCI Library using PCI Root Bridge I/O Protocol.
+
+ Copyright (c) 2007 - 2008, Intel Corporation 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 <PiDxe.h>
+
+#include <Protocol/PciRootBridgeIo.h>
+
+#include <Library/PciLib.h>
+#include <Library/BaseLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/DebugLib.h>
+
+/**
+ Assert the validity of a PCI address. A valid PCI address should contain 1's
+ only in the low 28 bits.
+
+ @param A The address to validate.
+ @param M Additional bits to assert to be zero.
+
+**/
+#define ASSERT_INVALID_PCI_ADDRESS(A,M) \
+ ASSERT (((A) & (~0xfffffff | (M))) == 0)
+
+/**
+ Translate PCI Lib address into format of PCI CFG2 PPI.
+
+ @param A Address that encodes the PCI Bus, Device, Function and
+ Register.
+
+**/
+#define PCI_TO_PCICFG2_ADDRESS(A) \
+ (((A) << 4) & 0xff000000) | (((A) >> 4) & 0x00000700) | (((A) << 1) & 0x001f0000) | ((UINT64)((A) & 0xFFF) << 32)
+
+//
+// Global varible to cache pointer to PCI Root Bridge I/O protocol.
+//
+EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *mPciRootBridgeIo = NULL;
+
+/**
+ The constructor function caches the pointer to PCI Root Bridge I/O protocol.
+
+ The constructor function locates PCI Root Bridge I/O protocol from protocol database.
+ It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.
+
+ @param ImageHandle The firmware allocated handle for the EFI image.
+ @param SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+PciLibConstructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ Status = gBS->LocateProtocol (&gEfiPciRootBridgeIoProtocolGuid, NULL, (VOID**) &mPciRootBridgeIo);
+ ASSERT_EFI_ERROR (Status);
+ ASSERT (mPciRootBridgeIo != NULL);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Internal worker function to read a PCI configuration register.
+
+ This function wraps EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Pci.Read() service.
+ It reads and returns the PCI configuration register specified by Address,
+ the width of data is specified by Width.
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Width Width of data to read
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT32
+DxePciLibPciRootBridgeIoReadWorker (
+ IN UINTN Address,
+ IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width
+ )
+{
+ UINT32 Data;
+
+ mPciRootBridgeIo->Pci.Read (
+ mPciRootBridgeIo,
+ Width,
+ PCI_TO_PCICFG2_ADDRESS (Address),
+ 1,
+ &Data
+ );
+
+ return Data;
+}
+
+/**
+ Internal worker function to writes a PCI configuration register.
+
+ This function wraps EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Pci.Write() service.
+ It writes the PCI configuration register specified by Address with the
+ value specified by Data. The width of data is specifed by Width.
+ Data is returned.
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Width Width of data to write
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT32
+DxePciLibPciRootBridgeIoWriteWorker (
+ IN UINTN Address,
+ IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
+ IN UINT32 Data
+ )
+{
+ mPciRootBridgeIo->Pci.Write (
+ mPciRootBridgeIo,
+ Width,
+ PCI_TO_PCICFG2_ADDRESS (Address),
+ 1,
+ &Data
+ );
+ return Data;
+}
+
+/**
+ Reads an 8-bit PCI configuration register.
+
+ Reads and returns the 8-bit PCI configuration register specified by Address.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciRead8 (
+ IN UINTN Address
+ )
+{
+ ASSERT_INVALID_PCI_ADDRESS (Address, 0);
+
+ return (UINT8) DxePciLibPciRootBridgeIoReadWorker (Address, EfiPciWidthUint8);
+}
+
+/**
+ Writes an 8-bit PCI configuration register.
+
+ Writes the 8-bit PCI configuration register specified by Address with the
+ value specified by Value. Value is returned. This function must guarantee
+ that all PCI read and write operations are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciWrite8 (
+ IN UINTN Address,
+ IN UINT8 Data
+ )
+{
+ ASSERT_INVALID_PCI_ADDRESS (Address, 0);
+
+ return (UINT8) DxePciLibPciRootBridgeIoWriteWorker (Address, EfiPciWidthUint8, Data);
+}
+
+/**
+ Performs a bitwise inclusive OR of an 8-bit PCI configuration register with
+ an 8-bit value.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 8-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciOr8 (
+ IN UINTN Address,
+ IN UINT8 OrData
+ )
+{
+ return PciWrite8 (Address, (UINT8) (PciRead8 (Address) | OrData));
+}
+
+/**
+ Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit
+ value.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 8-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciAnd8 (
+ IN UINTN Address,
+ IN UINT8 AndData
+ )
+{
+ return PciWrite8 (Address, (UINT8) (PciRead8 (Address) & AndData));
+}
+
+/**
+ Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit
+ value, followed a bitwise inclusive OR with another 8-bit value.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData,
+ performs a bitwise inclusive OR between the result of the AND operation and
+ the value specified by OrData, and writes the result to the 8-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciAndThenOr8 (
+ IN UINTN Address,
+ IN UINT8 AndData,
+ IN UINT8 OrData
+ )
+{
+ return PciWrite8 (Address, (UINT8) ((PciRead8 (Address) & AndData) | OrData));
+}
+
+/**
+ Reads a bit field of a PCI configuration register.
+
+ Reads the bit field in an 8-bit PCI configuration register. The bit field is
+ specified by the StartBit and the EndBit. The value of the bit field is
+ returned.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+
+ @return The value of the bit field read from the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciBitFieldRead8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead8 (PciRead8 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a PCI configuration register.
+
+ Writes Value to the bit field of the PCI configuration register. The bit
+ field is specified by the StartBit and the EndBit. All other bits in the
+ destination PCI configuration register are preserved. The new value of the
+ 8-bit register is returned.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param Value New value of the bit field.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciBitFieldWrite8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 Value
+ )
+{
+ return PciWrite8 (
+ Address,
+ BitFieldWrite8 (PciRead8 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit PCI configuration, performs a bitwise OR, and
+ writes the result back to the bit field in the 8-bit port.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 8-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized. Extra left bits in OrData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciBitFieldOr8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 OrData
+ )
+{
+ return PciWrite8 (
+ Address,
+ BitFieldOr8 (PciRead8 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit PCI configuration register, performs a bitwise
+ AND, and writes the result back to the bit field in the 8-bit register.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 8-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized. Extra left bits in AndData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciBitFieldAnd8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 AndData
+ )
+{
+ return PciWrite8 (
+ Address,
+ BitFieldAnd8 (PciRead8 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit port, performs a bitwise AND followed by a
+ bitwise inclusive OR, and writes the result back to the bit field in the
+ 8-bit port.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND followed by a bitwise inclusive OR between the read result and
+ the value specified by AndData, and writes the result to the 8-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized. Extra left bits in both AndData and
+ OrData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciBitFieldAndThenOr8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 AndData,
+ IN UINT8 OrData
+ )
+{
+ return PciWrite8 (
+ Address,
+ BitFieldAndThenOr8 (PciRead8 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 16-bit PCI configuration register.
+
+ Reads and returns the 16-bit PCI configuration register specified by Address.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciRead16 (
+ IN UINTN Address
+ )
+{
+ ASSERT_INVALID_PCI_ADDRESS (Address, 1);
+
+ return (UINT16) DxePciLibPciRootBridgeIoReadWorker (Address, EfiPciWidthUint16);
+}
+
+/**
+ Writes a 16-bit PCI configuration register.
+
+ Writes the 16-bit PCI configuration register specified by Address with the
+ value specified by Value. Value is returned. This function must guarantee
+ that all PCI read and write operations are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciWrite16 (
+ IN UINTN Address,
+ IN UINT16 Data
+ )
+{
+ ASSERT_INVALID_PCI_ADDRESS (Address, 1);
+
+ return (UINT16) DxePciLibPciRootBridgeIoWriteWorker (Address, EfiPciWidthUint16, Data);
+}
+
+/**
+ Performs a bitwise inclusive OR of a 16-bit PCI configuration register with
+ a 16-bit value.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 16-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciOr16 (
+ IN UINTN Address,
+ IN UINT16 OrData
+ )
+{
+ return PciWrite16 (Address, (UINT16) (PciRead16 (Address) | OrData));
+}
+
+/**
+ Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit
+ value.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 16-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciAnd16 (
+ IN UINTN Address,
+ IN UINT16 AndData
+ )
+{
+ return PciWrite16 (Address, (UINT16) (PciRead16 (Address) & AndData));
+}
+
+/**
+ Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit
+ value, followed a bitwise inclusive OR with another 16-bit value.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData,
+ performs a bitwise inclusive OR between the result of the AND operation and
+ the value specified by OrData, and writes the result to the 16-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciAndThenOr16 (
+ IN UINTN Address,
+ IN UINT16 AndData,
+ IN UINT16 OrData
+ )
+{
+ return PciWrite16 (Address, (UINT16) ((PciRead16 (Address) & AndData) | OrData));
+}
+
+/**
+ Reads a bit field of a PCI configuration register.
+
+ Reads the bit field in a 16-bit PCI configuration register. The bit field is
+ specified by the StartBit and the EndBit. The value of the bit field is
+ returned.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+
+ @return The value of the bit field read from the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciBitFieldRead16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead16 (PciRead16 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a PCI configuration register.
+
+ Writes Value to the bit field of the PCI configuration register. The bit
+ field is specified by the StartBit and the EndBit. All other bits in the
+ destination PCI configuration register are preserved. The new value of the
+ 16-bit register is returned.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param Value New value of the bit field.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciBitFieldWrite16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 Value
+ )
+{
+ return PciWrite16 (
+ Address,
+ BitFieldWrite16 (PciRead16 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit PCI configuration, performs a bitwise OR, and
+ writes the result back to the bit field in the 16-bit port.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 16-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized. Extra left bits in OrData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciBitFieldOr16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 OrData
+ )
+{
+ return PciWrite16 (
+ Address,
+ BitFieldOr16 (PciRead16 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit PCI configuration register, performs a bitwise
+ AND, and writes the result back to the bit field in the 16-bit register.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 16-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized. Extra left bits in AndData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciBitFieldAnd16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 AndData
+ )
+{
+ return PciWrite16 (
+ Address,
+ BitFieldAnd16 (PciRead16 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit port, performs a bitwise AND followed by a
+ bitwise inclusive OR, and writes the result back to the bit field in the
+ 16-bit port.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND followed by a bitwise inclusive OR between the read result and
+ the value specified by AndData, and writes the result to the 16-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized. Extra left bits in both AndData and
+ OrData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciBitFieldAndThenOr16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 AndData,
+ IN UINT16 OrData
+ )
+{
+ return PciWrite16 (
+ Address,
+ BitFieldAndThenOr16 (PciRead16 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 32-bit PCI configuration register.
+
+ Reads and returns the 32-bit PCI configuration register specified by Address.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciRead32 (
+ IN UINTN Address
+ )
+{
+ ASSERT_INVALID_PCI_ADDRESS (Address, 3);
+
+ return DxePciLibPciRootBridgeIoReadWorker (Address, EfiPciWidthUint32);
+}
+
+/**
+ Writes a 32-bit PCI configuration register.
+
+ Writes the 32-bit PCI configuration register specified by Address with the
+ value specified by Value. Value is returned. This function must guarantee
+ that all PCI read and write operations are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciWrite32 (
+ IN UINTN Address,
+ IN UINT32 Data
+ )
+{
+ ASSERT_INVALID_PCI_ADDRESS (Address, 3);
+
+ return DxePciLibPciRootBridgeIoWriteWorker (Address, EfiPciWidthUint32, Data);
+}
+
+/**
+ Performs a bitwise inclusive OR of a 32-bit PCI configuration register with
+ a 32-bit value.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 32-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciOr32 (
+ IN UINTN Address,
+ IN UINT32 OrData
+ )
+{
+ return PciWrite32 (Address, PciRead32 (Address) | OrData);
+}
+
+/**
+ Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit
+ value.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 32-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciAnd32 (
+ IN UINTN Address,
+ IN UINT32 AndData
+ )
+{
+ return PciWrite32 (Address, PciRead32 (Address) & AndData);
+}
+
+/**
+ Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit
+ value, followed a bitwise inclusive OR with another 32-bit value.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData,
+ performs a bitwise inclusive OR between the result of the AND operation and
+ the value specified by OrData, and writes the result to the 32-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciAndThenOr32 (
+ IN UINTN Address,
+ IN UINT32 AndData,
+ IN UINT32 OrData
+ )
+{
+ return PciWrite32 (Address, (PciRead32 (Address) & AndData) | OrData);
+}
+
+/**
+ Reads a bit field of a PCI configuration register.
+
+ Reads the bit field in a 32-bit PCI configuration register. The bit field is
+ specified by the StartBit and the EndBit. The value of the bit field is
+ returned.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+
+ @return The value of the bit field read from the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciBitFieldRead32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead32 (PciRead32 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a PCI configuration register.
+
+ Writes Value to the bit field of the PCI configuration register. The bit
+ field is specified by the StartBit and the EndBit. All other bits in the
+ destination PCI configuration register are preserved. The new value of the
+ 32-bit register is returned.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param Value New value of the bit field.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciBitFieldWrite32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 Value
+ )
+{
+ return PciWrite32 (
+ Address,
+ BitFieldWrite32 (PciRead32 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit PCI configuration, performs a bitwise OR, and
+ writes the result back to the bit field in the 32-bit port.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 32-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized. Extra left bits in OrData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciBitFieldOr32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 OrData
+ )
+{
+ return PciWrite32 (
+ Address,
+ BitFieldOr32 (PciRead32 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit PCI configuration register, performs a bitwise
+ AND, and writes the result back to the bit field in the 32-bit register.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 32-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized. Extra left bits in AndData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciBitFieldAnd32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 AndData
+ )
+{
+ return PciWrite32 (
+ Address,
+ BitFieldAnd32 (PciRead32 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit port, performs a bitwise AND followed by a
+ bitwise inclusive OR, and writes the result back to the bit field in the
+ 32-bit port.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND followed by a bitwise inclusive OR between the read result and
+ the value specified by AndData, and writes the result to the 32-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized. Extra left bits in both AndData and
+ OrData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciBitFieldAndThenOr32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 AndData,
+ IN UINT32 OrData
+ )
+{
+ return PciWrite32 (
+ Address,
+ BitFieldAndThenOr32 (PciRead32 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a range of PCI configuration registers into a caller supplied buffer.
+
+ Reads the range of PCI configuration registers specified by StartAddress and
+ Size into the buffer specified by Buffer. This function only allows the PCI
+ configuration registers from a single PCI function to be read. Size is
+ returned. When possible 32-bit PCI configuration read cycles are used to read
+ from StartAdress to StartAddress + Size. Due to alignment restrictions, 8-bit
+ and 16-bit PCI configuration read cycles may be used at the beginning and the
+ end of the range.
+
+ If StartAddress > 0x0FFFFFFF, then ASSERT().
+ If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().
+ If Size > 0 and Buffer is NULL, then ASSERT().
+
+ @param StartAddress Starting address that encodes the PCI Bus, Device,
+ Function and Register.
+ @param Size Size in bytes of the transfer.
+ @param Buffer Pointer to a buffer receiving the data read.
+
+ @return Size
+
+**/
+UINTN
+EFIAPI
+PciReadBuffer (
+ IN UINTN StartAddress,
+ IN UINTN Size,
+ OUT VOID *Buffer
+ )
+{
+ UINTN ReturnValue;
+
+ ASSERT_INVALID_PCI_ADDRESS (StartAddress, 0);
+ ASSERT (((StartAddress & 0xFFF) + Size) <= 0x100);
+
+ if (Size == 0) {
+ return Size;
+ }
+
+ ASSERT (Buffer != NULL);
+
+ //
+ // Save Size for return
+ //
+ ReturnValue = Size;
+
+ if ((StartAddress & 1) != 0) {
+ //
+ // Read a byte if StartAddress is byte aligned
+ //
+ *(volatile UINT8 *)Buffer = PciRead8 (StartAddress);
+ StartAddress += sizeof (UINT8);
+ Size -= sizeof (UINT8);
+ Buffer = (UINT8*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16) && (StartAddress & 2) != 0) {
+ //
+ // Read a word if StartAddress is word aligned
+ //
+ *(volatile UINT16 *)Buffer = PciRead16 (StartAddress);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ while (Size >= sizeof (UINT32)) {
+ //
+ // Read as many double words as possible
+ //
+ *(volatile UINT32 *)Buffer = PciRead32 (StartAddress);
+ StartAddress += sizeof (UINT32);
+ Size -= sizeof (UINT32);
+ Buffer = (UINT32*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16)) {
+ //
+ // Read the last remaining word if exist
+ //
+ *(volatile UINT16 *)Buffer = PciRead16 (StartAddress);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT8)) {
+ //
+ // Read the last remaining byte if exist
+ //
+ *(volatile UINT8 *)Buffer = PciRead8 (StartAddress);
+ }
+
+ return ReturnValue;
+}
+
+/**
+ Copies the data in a caller supplied buffer to a specified range of PCI
+ configuration space.
+
+ Writes the range of PCI configuration registers specified by StartAddress and
+ Size from the buffer specified by Buffer. This function only allows the PCI
+ configuration registers from a single PCI function to be written. Size is
+ returned. When possible 32-bit PCI configuration write cycles are used to
+ write from StartAdress to StartAddress + Size. Due to alignment restrictions,
+ 8-bit and 16-bit PCI configuration write cycles may be used at the beginning
+ and the end of the range.
+
+ If StartAddress > 0x0FFFFFFF, then ASSERT().
+ If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().
+ If Size > 0 and Buffer is NULL, then ASSERT().
+
+ @param StartAddress Starting address that encodes the PCI Bus, Device,
+ Function and Register.
+ @param Size Size in bytes of the transfer.
+ @param Buffer Pointer to a buffer containing the data to write.
+
+ @return Size
+
+**/
+UINTN
+EFIAPI
+PciWriteBuffer (
+ IN UINTN StartAddress,
+ IN UINTN Size,
+ IN VOID *Buffer
+ )
+{
+ UINTN ReturnValue;
+
+ ASSERT_INVALID_PCI_ADDRESS (StartAddress, 0);
+ ASSERT (((StartAddress & 0xFFF) + Size) <= 0x100);
+
+ if (Size == 0) {
+ return 0;
+ }
+
+ ASSERT (Buffer != NULL);
+
+ //
+ // Save Size for return
+ //
+ ReturnValue = Size;
+
+ if ((StartAddress & 1) != 0) {
+ //
+ // Write a byte if StartAddress is byte aligned
+ //
+ PciWrite8 (StartAddress, *(UINT8*)Buffer);
+ StartAddress += sizeof (UINT8);
+ Size -= sizeof (UINT8);
+ Buffer = (UINT8*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16) && (StartAddress & 2) != 0) {
+ //
+ // Write a word if StartAddress is word aligned
+ //
+ PciWrite16 (StartAddress, *(UINT16*)Buffer);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ while (Size >= sizeof (UINT32)) {
+ //
+ // Write as many double words as possible
+ //
+ PciWrite32 (StartAddress, *(UINT32*)Buffer);
+ StartAddress += sizeof (UINT32);
+ Size -= sizeof (UINT32);
+ Buffer = (UINT32*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16)) {
+ //
+ // Write the last remaining word if exist
+ //
+ PciWrite16 (StartAddress, *(UINT16*)Buffer);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT8)) {
+ //
+ // Write the last remaining byte if exist
+ //
+ PciWrite8 (StartAddress, *(UINT8*)Buffer);
+ }
+
+ return ReturnValue;
+}
diff --git a/MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/DxePciSegmentLibPciRootBridgeIo.inf b/MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/DxePciSegmentLibPciRootBridgeIo.inf new file mode 100644 index 0000000000..f30247b38d --- /dev/null +++ b/MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/DxePciSegmentLibPciRootBridgeIo.inf @@ -0,0 +1,58 @@ +# @file
+# Component description file for PCI Segment Lib using PCI Root Bridge I/O Protocol
+#
+# This library produces the APIs from the PCI Library and implements these APIs
+# by calling into the PCI Root Bridge I/O Protocols that are present in the platform.
+# The PCI Root Bridge I/O Protocols are typically produced by a chipset specific DXE driver.
+# This library binds to all of the PCI Root Bridge I/O Protocols in the platform and handles
+# the translation from a PCI segment number into a specific PCI Root Bridge I/O Protocol.
+#
+# Copyright (c) 2007, Intel Corporation.
+#
+# 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.
+#
+#
+#
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = DxePciSegmentLibPciRootBridgeIo
+ FILE_GUID = C6068612-B6E0-48a3-BB92-60E4A4F89EDF
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PciSegmentLib|DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER DXE_SAL_DRIVER UEFI_DRIVER UEFI_APPLICATION
+ EDK_RELEASE_VERSION = 0x00020000
+ EFI_SPECIFICATION_VERSION = 0x00020000
+
+ CONSTRUCTOR = PciSegmentLibConstructor
+ DESTRUCTOR = PciSegmentLibDestructor
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC
+#
+
+[Sources.common]
+ PciSegmentLib.h
+ PciSegmentLib.c
+
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+
+[LibraryClasses]
+ MemoryAllocationLib
+ BaseLib
+ UefiBootServicesTableLib
+ DebugLib
+
+[Protocols]
+ gEfiPciRootBridgeIoProtocolGuid # PROTOCOL ALWAYS_CONSUMED
+
diff --git a/MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/PciSegmentLib.c b/MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/PciSegmentLib.c new file mode 100644 index 0000000000..705ec526bd --- /dev/null +++ b/MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/PciSegmentLib.c @@ -0,0 +1,1469 @@ +/** @file
+ Functions accessing PCI configuration registers on any supported PCI segment
+
+ Copyright (c) 2007 - 2008, Intel Corporation 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 "PciSegmentLib.h"
+
+//
+// Global varible to record data of PCI Root Bridge I/O Protcol instances
+//
+PCI_ROOT_BRIDGE_DATA *mPciRootBridgeData = NULL;
+UINTN mNumberOfPciRootBridges = 0;
+
+/**
+ The constructor function caches data of PCI Root Bridge I/O Protcol instances.
+
+ The constructor function locates PCI Root Bridge I/O protocol instances,
+ and caches the protocol instances, together with their segment numbers and bus ranges.
+ It will ASSERT() if that related operation fails and it will always return EFI_SUCCESS.
+
+ @param ImageHandle The firmware allocated handle for the EFI image.
+ @param SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+PciSegmentLibConstructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ UINTN Index;
+ UINTN HandleCount;
+ EFI_HANDLE *HandleBuffer;
+ EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
+ EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptors;
+
+ HandleCount = 0;
+ HandleBuffer = NULL;
+ PciRootBridgeIo = NULL;
+ Descriptors = NULL;
+
+ Status = gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiPciRootBridgeIoProtocolGuid,
+ NULL,
+ &HandleCount,
+ &HandleBuffer
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ mNumberOfPciRootBridges = HandleCount;
+
+ mPciRootBridgeData = AllocatePool (HandleCount * sizeof (PCI_ROOT_BRIDGE_DATA));
+ ASSERT (mPciRootBridgeData != NULL);
+
+ //
+ // Traverse all PCI Root Bridge I/O Protocol instances, and record the protocol
+ // instances, together with their segment numbers and bus ranges.
+ //
+ for (Index = 0; Index < HandleCount; Index++) {
+ Status = gBS->HandleProtocol (
+ HandleBuffer[Index],
+ &gEfiPciRootBridgeIoProtocolGuid,
+ (VOID **) &PciRootBridgeIo
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ mPciRootBridgeData[Index].PciRootBridgeIo = PciRootBridgeIo;
+ mPciRootBridgeData[Index].SegmentNumber = PciRootBridgeIo->SegmentNumber;
+
+ Status = PciRootBridgeIo->Configuration (PciRootBridgeIo, (VOID **) &Descriptors);
+ ASSERT_EFI_ERROR (Status);
+
+ while (Descriptors->Desc != ACPI_END_TAG_DESCRIPTOR) {
+ if (Descriptors->ResType == ACPI_ADDRESS_SPACE_TYPE_BUS) {
+ mPciRootBridgeData[Index].MinBusNumber = Descriptors->AddrRangeMin;
+ mPciRootBridgeData[Index].MaxBusNumber = Descriptors->AddrRangeMax;
+ break;
+ }
+ Descriptors++;
+ }
+ ASSERT (Descriptors->Desc != ACPI_END_TAG_DESCRIPTOR);
+ }
+
+ Status = gBS->FreePool(HandleBuffer);
+ ASSERT_EFI_ERROR (Status);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ The destructor function frees memory allocated by constructor.
+
+ The destructor function frees memory for data of protocol instances allocated by constructor.
+ It will ASSERT() if that related operation fails and it will always return EFI_SUCCESS.
+
+ @param ImageHandle The firmware allocated handle for the EFI image.
+ @param SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+PciSegmentLibDestructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ FreePool (mPciRootBridgeData);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ According to address, search for the corresponding PCI Root Bridge I/O Protocol instance.
+
+ This internal function extracts segment number and bus number data from address, and
+ retrieves the corresponding PCI Root Bridge I/O Protocol instance.
+
+ @param Address Address that encodes the Segment, PCI Bus, Device, Function and
+ Register.
+
+ @return The address for PCI Root Bridge I/O Protocol.
+
+**/
+EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *
+PciSegmentLibSearchForRootBridge (
+ IN UINT64 Address
+ )
+{
+ UINTN Index;
+ UINT64 SegmentNumber;
+ UINT64 BusNumber;
+
+ for (Index = 0; Index < mNumberOfPciRootBridges; Index++) {
+ //
+ // Matches segment number of address with the segment number of protocol instance.
+ //
+ SegmentNumber = BitFieldRead64 (Address, 32, 63);
+ if (SegmentNumber == mPciRootBridgeData[Index].SegmentNumber) {
+ //
+ // Matches the bus number of address with bus number range of protocol instance.
+ //
+ BusNumber = BitFieldRead64 (Address, 20, 27);
+ if (BusNumber >= mPciRootBridgeData[Index].MinBusNumber && BusNumber <= mPciRootBridgeData[Index].MaxBusNumber) {
+ return mPciRootBridgeData[Index].PciRootBridgeIo;
+ }
+ }
+ }
+ return NULL;
+}
+
+/**
+ Internal worker function to read a PCI configuration register.
+
+ This function wraps EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Pci.Read() service.
+ It reads and returns the PCI configuration register specified by Address,
+ the width of data is specified by Width.
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Width Width of data to read
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT32
+DxePciSegmentLibPciRootBridgeIoReadWorker (
+ IN UINT64 Address,
+ IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width
+ )
+{
+ UINT32 Data;
+ EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
+
+ PciRootBridgeIo = PciSegmentLibSearchForRootBridge (Address);
+ ASSERT (PciRootBridgeIo != NULL);
+
+ PciRootBridgeIo->Pci.Read (
+ PciRootBridgeIo,
+ Width,
+ PCI_TO_PCICFG2_ADDRESS (Address),
+ 1,
+ &Data
+ );
+
+ return Data;
+}
+
+/**
+ Internal worker function to writes a PCI configuration register.
+
+ This function wraps EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Pci.Write() service.
+ It writes the PCI configuration register specified by Address with the
+ value specified by Data. The width of data is specifed by Width.
+ Data is returned.
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Width Width of data to write
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT32
+DxePciSegmentLibPciRootBridgeIoWriteWorker (
+ IN UINT64 Address,
+ IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
+ IN UINT32 Data
+ )
+{
+ EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
+
+ PciRootBridgeIo = PciSegmentLibSearchForRootBridge (Address);
+ ASSERT (PciRootBridgeIo != NULL);
+
+ PciRootBridgeIo->Pci.Write (
+ PciRootBridgeIo,
+ Width,
+ PCI_TO_PCICFG2_ADDRESS (Address),
+ 1,
+ &Data
+ );
+
+ return Data;
+}
+
+/**
+ Reads an 8-bit PCI configuration register.
+
+ Reads and returns the 8-bit PCI configuration register specified by Address.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentRead8 (
+ IN UINT64 Address
+ )
+{
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (Address, 0);
+
+ return (UINT8) DxePciSegmentLibPciRootBridgeIoReadWorker (Address, EfiPciWidthUint8);
+}
+
+/**
+ Writes an 8-bit PCI configuration register.
+
+ Writes the 8-bit PCI configuration register specified by Address with the
+ value specified by Value. Value is returned. This function must guarantee
+ that all PCI read and write operations are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentWrite8 (
+ IN UINT64 Address,
+ IN UINT8 Data
+ )
+{
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (Address, 0);
+
+ return (UINT8) DxePciSegmentLibPciRootBridgeIoWriteWorker (Address, EfiPciWidthUint8, Data);
+}
+
+/**
+ Performs a bitwise inclusive OR of an 8-bit PCI configuration register with
+ an 8-bit value.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 8-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentOr8 (
+ IN UINT64 Address,
+ IN UINT8 OrData
+ )
+{
+ return PciSegmentWrite8 (Address, (UINT8) (PciSegmentRead8 (Address) | OrData));
+}
+
+/**
+ Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit
+ value.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 8-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentAnd8 (
+ IN UINT64 Address,
+ IN UINT8 AndData
+ )
+{
+ return PciSegmentWrite8 (Address, (UINT8) (PciSegmentRead8 (Address) & AndData));
+}
+
+/**
+ Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit
+ value, followed a bitwise inclusive OR with another 8-bit value.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData,
+ performs a bitwise inclusive OR between the result of the AND operation and
+ the value specified by OrData, and writes the result to the 8-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentAndThenOr8 (
+ IN UINT64 Address,
+ IN UINT8 AndData,
+ IN UINT8 OrData
+ )
+{
+ return PciSegmentWrite8 (Address, (UINT8) ((PciSegmentRead8 (Address) & AndData) | OrData));
+}
+
+/**
+ Reads a bit field of a PCI configuration register.
+
+ Reads the bit field in an 8-bit PCI configuration register. The bit field is
+ specified by the StartBit and the EndBit. The value of the bit field is
+ returned.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+
+ @return The value of the bit field read from the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentBitFieldRead8 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead8 (PciSegmentRead8 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a PCI configuration register.
+
+ Writes Value to the bit field of the PCI configuration register. The bit
+ field is specified by the StartBit and the EndBit. All other bits in the
+ destination PCI configuration register are preserved. The new value of the
+ 8-bit register is returned.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param Value New value of the bit field.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentBitFieldWrite8 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 Value
+ )
+{
+ return PciSegmentWrite8 (
+ Address,
+ BitFieldWrite8 (PciSegmentRead8 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit PCI configuration, performs a bitwise OR, and
+ writes the result back to the bit field in the 8-bit port.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 8-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized. Extra left bits in OrData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentBitFieldOr8 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 OrData
+ )
+{
+ return PciSegmentWrite8 (
+ Address,
+ BitFieldOr8 (PciSegmentRead8 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit PCI configuration register, performs a bitwise
+ AND, and writes the result back to the bit field in the 8-bit register.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 8-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized. Extra left bits in AndData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentBitFieldAnd8 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 AndData
+ )
+{
+ return PciSegmentWrite8 (
+ Address,
+ BitFieldAnd8 (PciSegmentRead8 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit port, performs a bitwise AND followed by a
+ bitwise inclusive OR, and writes the result back to the bit field in the
+ 8-bit port.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND followed by a bitwise inclusive OR between the read result and
+ the value specified by AndData, and writes the result to the 8-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized. Extra left bits in both AndData and
+ OrData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentBitFieldAndThenOr8 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 AndData,
+ IN UINT8 OrData
+ )
+{
+ return PciSegmentWrite8 (
+ Address,
+ BitFieldAndThenOr8 (PciSegmentRead8 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 16-bit PCI configuration register.
+
+ Reads and returns the 16-bit PCI configuration register specified by Address.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentRead16 (
+ IN UINT64 Address
+ )
+{
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (Address, 1);
+
+ return (UINT16) DxePciSegmentLibPciRootBridgeIoReadWorker (Address, EfiPciWidthUint16);
+}
+
+/**
+ Writes a 16-bit PCI configuration register.
+
+ Writes the 16-bit PCI configuration register specified by Address with the
+ value specified by Value. Value is returned. This function must guarantee
+ that all PCI read and write operations are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentWrite16 (
+ IN UINT64 Address,
+ IN UINT16 Data
+ )
+{
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (Address, 1);
+
+ return (UINT16) DxePciSegmentLibPciRootBridgeIoWriteWorker (Address, EfiPciWidthUint16, Data);
+}
+
+/**
+ Performs a bitwise inclusive OR of a 16-bit PCI configuration register with
+ a 16-bit value.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 16-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentOr16 (
+ IN UINT64 Address,
+ IN UINT16 OrData
+ )
+{
+ return PciSegmentWrite16 (Address, (UINT16) (PciSegmentRead16 (Address) | OrData));
+}
+
+/**
+ Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit
+ value.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 16-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentAnd16 (
+ IN UINT64 Address,
+ IN UINT16 AndData
+ )
+{
+ return PciSegmentWrite16 (Address, (UINT16) (PciSegmentRead16 (Address) & AndData));
+}
+
+/**
+ Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit
+ value, followed a bitwise inclusive OR with another 16-bit value.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData,
+ performs a bitwise inclusive OR between the result of the AND operation and
+ the value specified by OrData, and writes the result to the 16-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentAndThenOr16 (
+ IN UINT64 Address,
+ IN UINT16 AndData,
+ IN UINT16 OrData
+ )
+{
+ return PciSegmentWrite16 (Address, (UINT16) ((PciSegmentRead16 (Address) & AndData) | OrData));
+}
+
+/**
+ Reads a bit field of a PCI configuration register.
+
+ Reads the bit field in a 16-bit PCI configuration register. The bit field is
+ specified by the StartBit and the EndBit. The value of the bit field is
+ returned.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+
+ @return The value of the bit field read from the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentBitFieldRead16 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead16 (PciSegmentRead16 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a PCI configuration register.
+
+ Writes Value to the bit field of the PCI configuration register. The bit
+ field is specified by the StartBit and the EndBit. All other bits in the
+ destination PCI configuration register are preserved. The new value of the
+ 16-bit register is returned.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param Value New value of the bit field.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentBitFieldWrite16 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 Value
+ )
+{
+ return PciSegmentWrite16 (
+ Address,
+ BitFieldWrite16 (PciSegmentRead16 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit PCI configuration, performs a bitwise OR, and
+ writes the result back to the bit field in the 16-bit port.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 16-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized. Extra left bits in OrData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentBitFieldOr16 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 OrData
+ )
+{
+ return PciSegmentWrite16 (
+ Address,
+ BitFieldOr16 (PciSegmentRead16 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit PCI configuration register, performs a bitwise
+ AND, and writes the result back to the bit field in the 16-bit register.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 16-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized. Extra left bits in AndData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentBitFieldAnd16 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 AndData
+ )
+{
+ return PciSegmentWrite16 (
+ Address,
+ BitFieldAnd16 (PciSegmentRead16 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit port, performs a bitwise AND followed by a
+ bitwise inclusive OR, and writes the result back to the bit field in the
+ 16-bit port.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND followed by a bitwise inclusive OR between the read result and
+ the value specified by AndData, and writes the result to the 16-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized. Extra left bits in both AndData and
+ OrData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentBitFieldAndThenOr16 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 AndData,
+ IN UINT16 OrData
+ )
+{
+ return PciSegmentWrite16 (
+ Address,
+ BitFieldAndThenOr16 (PciSegmentRead16 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 32-bit PCI configuration register.
+
+ Reads and returns the 32-bit PCI configuration register specified by Address.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentRead32 (
+ IN UINT64 Address
+ )
+{
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (Address, 3);
+
+ return DxePciSegmentLibPciRootBridgeIoReadWorker (Address, EfiPciWidthUint32);
+}
+
+/**
+ Writes a 32-bit PCI configuration register.
+
+ Writes the 32-bit PCI configuration register specified by Address with the
+ value specified by Value. Value is returned. This function must guarantee
+ that all PCI read and write operations are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentWrite32 (
+ IN UINT64 Address,
+ IN UINT32 Data
+ )
+{
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (Address, 3);
+
+ return DxePciSegmentLibPciRootBridgeIoWriteWorker (Address, EfiPciWidthUint32, Data);
+}
+
+/**
+ Performs a bitwise inclusive OR of a 32-bit PCI configuration register with
+ a 32-bit value.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 32-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentOr32 (
+ IN UINT64 Address,
+ IN UINT32 OrData
+ )
+{
+ return PciSegmentWrite32 (Address, PciSegmentRead32 (Address) | OrData);
+}
+
+/**
+ Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit
+ value.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 32-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentAnd32 (
+ IN UINT64 Address,
+ IN UINT32 AndData
+ )
+{
+ return PciSegmentWrite32 (Address, PciSegmentRead32 (Address) & AndData);
+}
+
+/**
+ Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit
+ value, followed a bitwise inclusive OR with another 32-bit value.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData,
+ performs a bitwise inclusive OR between the result of the AND operation and
+ the value specified by OrData, and writes the result to the 32-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentAndThenOr32 (
+ IN UINT64 Address,
+ IN UINT32 AndData,
+ IN UINT32 OrData
+ )
+{
+ return PciSegmentWrite32 (Address, (PciSegmentRead32 (Address) & AndData) | OrData);
+}
+
+/**
+ Reads a bit field of a PCI configuration register.
+
+ Reads the bit field in a 32-bit PCI configuration register. The bit field is
+ specified by the StartBit and the EndBit. The value of the bit field is
+ returned.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+
+ @return The value of the bit field read from the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentBitFieldRead32 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead32 (PciSegmentRead32 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a PCI configuration register.
+
+ Writes Value to the bit field of the PCI configuration register. The bit
+ field is specified by the StartBit and the EndBit. All other bits in the
+ destination PCI configuration register are preserved. The new value of the
+ 32-bit register is returned.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param Value New value of the bit field.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentBitFieldWrite32 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 Value
+ )
+{
+ return PciSegmentWrite32 (
+ Address,
+ BitFieldWrite32 (PciSegmentRead32 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit PCI configuration, performs a bitwise OR, and
+ writes the result back to the bit field in the 32-bit port.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 32-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized. Extra left bits in OrData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentBitFieldOr32 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 OrData
+ )
+{
+ return PciSegmentWrite32 (
+ Address,
+ BitFieldOr32 (PciSegmentRead32 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit PCI configuration register, performs a bitwise
+ AND, and writes the result back to the bit field in the 32-bit register.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 32-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized. Extra left bits in AndData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentBitFieldAnd32 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 AndData
+ )
+{
+ return PciSegmentWrite32 (
+ Address,
+ BitFieldAnd32 (PciSegmentRead32 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit port, performs a bitwise AND followed by a
+ bitwise inclusive OR, and writes the result back to the bit field in the
+ 32-bit port.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND followed by a bitwise inclusive OR between the read result and
+ the value specified by AndData, and writes the result to the 32-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized. Extra left bits in both AndData and
+ OrData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentBitFieldAndThenOr32 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 AndData,
+ IN UINT32 OrData
+ )
+{
+ return PciSegmentWrite32 (
+ Address,
+ BitFieldAndThenOr32 (PciSegmentRead32 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a range of PCI configuration registers into a caller supplied buffer.
+
+ Reads the range of PCI configuration registers specified by StartAddress and
+ Size into the buffer specified by Buffer. This function only allows the PCI
+ configuration registers from a single PCI function to be read. Size is
+ returned. When possible 32-bit PCI configuration read cycles are used to read
+ from StartAdress to StartAddress + Size. Due to alignment restrictions, 8-bit
+ and 16-bit PCI configuration read cycles may be used at the beginning and the
+ end of the range.
+
+ If StartAddress > 0x0FFFFFFF, then ASSERT().
+ If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().
+ If Size > 0 and Buffer is NULL, then ASSERT().
+
+ @param StartAddress Starting Address that encodes the PCI Segment, Bus, Device,
+ Function and Register.
+ @param Size Size in bytes of the transfer.
+ @param Buffer Pointer to a buffer receiving the data read.
+
+ @return Size
+
+**/
+UINTN
+EFIAPI
+PciSegmentReadBuffer (
+ IN UINT64 StartAddress,
+ IN UINTN Size,
+ OUT VOID *Buffer
+ )
+{
+ UINTN ReturnValue;
+
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (StartAddress, 0);
+ ASSERT (((StartAddress & 0xFFF) + Size) <= 0x1000);
+
+ if (Size == 0) {
+ return Size;
+ }
+
+ ASSERT (Buffer != NULL);
+
+ //
+ // Save Size for return
+ //
+ ReturnValue = Size;
+
+ if ((StartAddress & 1) != 0) {
+ //
+ // Read a byte if StartAddress is byte aligned
+ //
+ *(volatile UINT8 *)Buffer = PciSegmentRead8 (StartAddress);
+ StartAddress += sizeof (UINT8);
+ Size -= sizeof (UINT8);
+ Buffer = (UINT8*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16) && (StartAddress & 2) != 0) {
+ //
+ // Read a word if StartAddress is word aligned
+ //
+ *(volatile UINT16 *)Buffer = PciSegmentRead16 (StartAddress);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ while (Size >= sizeof (UINT32)) {
+ //
+ // Read as many double words as possible
+ //
+ *(volatile UINT32 *)Buffer = PciSegmentRead32 (StartAddress);
+ StartAddress += sizeof (UINT32);
+ Size -= sizeof (UINT32);
+ Buffer = (UINT32*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16)) {
+ //
+ // Read the last remaining word if exist
+ //
+ *(volatile UINT16 *)Buffer = PciSegmentRead16 (StartAddress);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT8)) {
+ //
+ // Read the last remaining byte if exist
+ //
+ *(volatile UINT8 *)Buffer = PciSegmentRead8 (StartAddress);
+ }
+
+ return ReturnValue;
+}
+
+/**
+ Copies the data in a caller supplied buffer to a specified range of PCI
+ configuration space.
+
+ Writes the range of PCI configuration registers specified by StartAddress and
+ Size from the buffer specified by Buffer. This function only allows the PCI
+ configuration registers from a single PCI function to be written. Size is
+ returned. When possible 32-bit PCI configuration write cycles are used to
+ write from StartAdress to StartAddress + Size. Due to alignment restrictions,
+ 8-bit and 16-bit PCI configuration write cycles may be used at the beginning
+ and the end of the range.
+
+ If StartAddress > 0x0FFFFFFF, then ASSERT().
+ If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().
+ If Size > 0 and Buffer is NULL, then ASSERT().
+
+ @param StartAddress Starting Address that encodes the PCI Segment, Bus, Device,
+ Function and Register.
+ @param Size Size in bytes of the transfer.
+ @param Buffer Pointer to a buffer containing the data to write.
+
+ @return Size
+
+**/
+UINTN
+EFIAPI
+PciSegmentWriteBuffer (
+ IN UINT64 StartAddress,
+ IN UINTN Size,
+ IN VOID *Buffer
+ )
+{
+ UINTN ReturnValue;
+
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (StartAddress, 0);
+ ASSERT (((StartAddress & 0xFFF) + Size) <= 0x1000);
+
+ if (Size == 0) {
+ return 0;
+ }
+
+ ASSERT (Buffer != NULL);
+
+ //
+ // Save Size for return
+ //
+ ReturnValue = Size;
+
+ if ((StartAddress & 1) != 0) {
+ //
+ // Write a byte if StartAddress is byte aligned
+ //
+ PciSegmentWrite8 (StartAddress, *(UINT8*)Buffer);
+ StartAddress += sizeof (UINT8);
+ Size -= sizeof (UINT8);
+ Buffer = (UINT8*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16) && (StartAddress & 2) != 0) {
+ //
+ // Write a word if StartAddress is word aligned
+ //
+ PciSegmentWrite16 (StartAddress, *(UINT16*)Buffer);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ while (Size >= sizeof (UINT32)) {
+ //
+ // Write as many double words as possible
+ //
+ PciSegmentWrite32 (StartAddress, *(UINT32*)Buffer);
+ StartAddress += sizeof (UINT32);
+ Size -= sizeof (UINT32);
+ Buffer = (UINT32*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16)) {
+ //
+ // Write the last remaining word if exist
+ //
+ PciSegmentWrite16 (StartAddress, *(UINT16*)Buffer);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT8)) {
+ //
+ // Write the last remaining byte if exist
+ //
+ PciSegmentWrite8 (StartAddress, *(UINT8*)Buffer);
+ }
+
+ return ReturnValue;
+}
diff --git a/MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/PciSegmentLib.h b/MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/PciSegmentLib.h new file mode 100644 index 0000000000..2ed7dfe0a8 --- /dev/null +++ b/MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/PciSegmentLib.h @@ -0,0 +1,59 @@ +/** @file
+ Include file of PciSegmentPciRootBridgeIo Library.
+
+ Copyright (c) 2007 - 2008, Intel Corporation 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.
+
+**/
+
+#ifndef __DXE_PCI_SEGMENT_LIB__
+#define __DXE_PCI_SEGMENT_LIB__
+
+#include <PiDxe.h>
+
+#include <Protocol/PciRootBridgeIo.h>
+
+#include <Library/PciSegmentLib.h>
+#include <Library/BaseLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/DebugLib.h>
+
+#include <IndustryStandard/Acpi.h>
+
+typedef struct {
+ EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
+ UINT32 SegmentNumber;
+ UINT64 MinBusNumber;
+ UINT64 MaxBusNumber;
+} PCI_ROOT_BRIDGE_DATA;
+
+/**
+ Assert the validity of a PCI Segment address.
+ A valid PCI address should not contain 1's in bits 31:28
+
+ @param A The address to validate.
+ @param M Additional bits to assert to be zero.
+
+**/
+#define ASSERT_INVALID_PCI_SEGMENT_ADDRESS(A,M) \
+ ASSERT (((A) & (0xf0000000 | (M))) == 0)
+
+/**
+ Translate PCI Lib address into format of PCI CFG2 PPI.
+
+ @param A Address that encodes the PCI Bus, Device, Function and
+ Register.
+
+**/
+#define PCI_TO_PCICFG2_ADDRESS(A) \
+ (((A) << 4) & 0xff000000) | (((A) >> 4) & 0x00000700) | (((A) << 1) & 0x001f0000) | ((UINT64)((A) & 0xFFF) << 32)
+
+#endif
diff --git a/MdePkg/Library/PeiPciLibPciCfg2/PciLib.c b/MdePkg/Library/PeiPciLibPciCfg2/PciLib.c new file mode 100644 index 0000000000..d3d96790c5 --- /dev/null +++ b/MdePkg/Library/PeiPciLibPciCfg2/PciLib.c @@ -0,0 +1,1372 @@ +/** @file
+ PCI Library using PCI CFG2 PPI.
+
+ Copyright (c) 2007 - 2008, Intel Corporation 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 <PiPei.h>
+
+#include <Ppi/PciCfg2.h>
+
+#include <Library/PciLib.h>
+#include <Library/BaseLib.h>
+#include <Library/PeiServicesTablePointerLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PeiServicesLib.h>
+
+/**
+ Assert the validity of a PCI address. A valid PCI address should contain 1's
+ only in the low 28 bits.
+
+ @param A The address to validate.
+ @param M Additional bits to assert to be zero.
+
+**/
+#define ASSERT_INVALID_PCI_ADDRESS(A,M) \
+ ASSERT (((A) & (~0xfffffff | (M))) == 0)
+
+/**
+ Translate PCI Lib address into format of PCI CFG2 PPI.
+
+ @param A Address that encodes the PCI Bus, Device, Function and
+ Register.
+
+**/
+#define PCI_TO_PCICFG2_ADDRESS(A) \
+ (((A) << 4) & 0xff000000) | (((A) >> 4) & 0x00000700) | (((A) << 1) & 0x001f0000) | ((UINT64)((A) & 0xFFF) << 32)
+
+/**
+ Internal worker function to read a PCI configuration register.
+
+ This function wraps EFI_PEI_PCI_CFG2_PPI.Read() service.
+ It reads and returns the PCI configuration register specified by Address,
+ the width of data is specified by Width.
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Width Width of data to read
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT32
+PeiPciLibPciCfg2ReadWorker (
+ IN UINTN Address,
+ IN EFI_PEI_PCI_CFG_PPI_WIDTH Width
+ )
+{
+ EFI_STATUS Status;
+ UINT32 Data;
+ CONST EFI_PEI_PCI_CFG2_PPI *PciCfg2Ppi;
+
+ Status = PeiServicesLocatePpi (&gEfiPciCfg2PpiGuid, 0, NULL, (VOID **) &PciCfg2Ppi);
+ ASSERT_EFI_ERROR (Status);
+ ASSERT (PciCfg2Ppi != NULL);
+
+ PciCfg2Ppi->Read (
+ GetPeiServicesTablePointer (),
+ PciCfg2Ppi,
+ Width,
+ PCI_TO_PCICFG2_ADDRESS (Address),
+ &Data
+ );
+
+ return Data;
+}
+
+/**
+ Internal worker function to writes a PCI configuration register.
+
+ This function wraps EFI_PEI_PCI_CFG2_PPI.Write() service.
+ It writes the PCI configuration register specified by Address with the
+ value specified by Data. The width of data is specifed by Width.
+ Data is returned.
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Width Width of data to write
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT32
+PeiPciLibPciCfg2WriteWorker (
+ IN UINTN Address,
+ IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
+ IN UINT32 Data
+ )
+{
+ EFI_STATUS Status;
+ CONST EFI_PEI_PCI_CFG2_PPI *PciCfg2Ppi;
+
+ Status = PeiServicesLocatePpi (&gEfiPciCfg2PpiGuid, 0, NULL, (VOID **) &PciCfg2Ppi);
+ ASSERT_EFI_ERROR (Status);
+ ASSERT (PciCfg2Ppi != NULL);
+
+ PciCfg2Ppi->Write (
+ GetPeiServicesTablePointer (),
+ PciCfg2Ppi,
+ Width,
+ PCI_TO_PCICFG2_ADDRESS (Address),
+ &Data
+ );
+
+ return Data;
+}
+
+/**
+ Reads an 8-bit PCI configuration register.
+
+ Reads and returns the 8-bit PCI configuration register specified by Address.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciRead8 (
+ IN UINTN Address
+ )
+{
+ ASSERT_INVALID_PCI_ADDRESS (Address, 0);
+
+ return (UINT8) PeiPciLibPciCfg2ReadWorker (Address, EfiPeiPciCfgWidthUint8);
+}
+
+/**
+ Writes an 8-bit PCI configuration register.
+
+ Writes the 8-bit PCI configuration register specified by Address with the
+ value specified by Value. Value is returned. This function must guarantee
+ that all PCI read and write operations are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciWrite8 (
+ IN UINTN Address,
+ IN UINT8 Data
+ )
+{
+ ASSERT_INVALID_PCI_ADDRESS (Address, 0);
+
+ return (UINT8) PeiPciLibPciCfg2WriteWorker (Address, EfiPeiPciCfgWidthUint8, Data);
+}
+
+/**
+ Performs a bitwise inclusive OR of an 8-bit PCI configuration register with
+ an 8-bit value.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 8-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciOr8 (
+ IN UINTN Address,
+ IN UINT8 OrData
+ )
+{
+ return PciWrite8 (Address, (UINT8) (PciRead8 (Address) | OrData));
+}
+
+/**
+ Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit
+ value.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 8-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciAnd8 (
+ IN UINTN Address,
+ IN UINT8 AndData
+ )
+{
+ return PciWrite8 (Address, (UINT8) (PciRead8 (Address) & AndData));
+}
+
+/**
+ Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit
+ value, followed a bitwise inclusive OR with another 8-bit value.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData,
+ performs a bitwise inclusive OR between the result of the AND operation and
+ the value specified by OrData, and writes the result to the 8-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciAndThenOr8 (
+ IN UINTN Address,
+ IN UINT8 AndData,
+ IN UINT8 OrData
+ )
+{
+ return PciWrite8 (Address, (UINT8) ((PciRead8 (Address) & AndData) | OrData));
+}
+
+/**
+ Reads a bit field of a PCI configuration register.
+
+ Reads the bit field in an 8-bit PCI configuration register. The bit field is
+ specified by the StartBit and the EndBit. The value of the bit field is
+ returned.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+
+ @return The value of the bit field read from the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciBitFieldRead8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead8 (PciRead8 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a PCI configuration register.
+
+ Writes Value to the bit field of the PCI configuration register. The bit
+ field is specified by the StartBit and the EndBit. All other bits in the
+ destination PCI configuration register are preserved. The new value of the
+ 8-bit register is returned.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param Value New value of the bit field.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciBitFieldWrite8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 Value
+ )
+{
+ return PciWrite8 (
+ Address,
+ BitFieldWrite8 (PciRead8 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit PCI configuration, performs a bitwise OR, and
+ writes the result back to the bit field in the 8-bit port.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 8-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized. Extra left bits in OrData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciBitFieldOr8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 OrData
+ )
+{
+ return PciWrite8 (
+ Address,
+ BitFieldOr8 (PciRead8 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit PCI configuration register, performs a bitwise
+ AND, and writes the result back to the bit field in the 8-bit register.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 8-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized. Extra left bits in AndData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciBitFieldAnd8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 AndData
+ )
+{
+ return PciWrite8 (
+ Address,
+ BitFieldAnd8 (PciRead8 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit port, performs a bitwise AND followed by a
+ bitwise inclusive OR, and writes the result back to the bit field in the
+ 8-bit port.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND followed by a bitwise inclusive OR between the read result and
+ the value specified by AndData, and writes the result to the 8-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized. Extra left bits in both AndData and
+ OrData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciBitFieldAndThenOr8 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 AndData,
+ IN UINT8 OrData
+ )
+{
+ return PciWrite8 (
+ Address,
+ BitFieldAndThenOr8 (PciRead8 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 16-bit PCI configuration register.
+
+ Reads and returns the 16-bit PCI configuration register specified by Address.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciRead16 (
+ IN UINTN Address
+ )
+{
+ ASSERT_INVALID_PCI_ADDRESS (Address, 1);
+
+ return (UINT16) PeiPciLibPciCfg2ReadWorker (Address, EfiPeiPciCfgWidthUint16);
+}
+
+/**
+ Writes a 16-bit PCI configuration register.
+
+ Writes the 16-bit PCI configuration register specified by Address with the
+ value specified by Value. Value is returned. This function must guarantee
+ that all PCI read and write operations are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciWrite16 (
+ IN UINTN Address,
+ IN UINT16 Data
+ )
+{
+ ASSERT_INVALID_PCI_ADDRESS (Address, 1);
+
+ return (UINT16) PeiPciLibPciCfg2WriteWorker (Address, EfiPeiPciCfgWidthUint16, Data);
+}
+
+/**
+ Performs a bitwise inclusive OR of a 16-bit PCI configuration register with
+ a 16-bit value.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 16-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciOr16 (
+ IN UINTN Address,
+ IN UINT16 OrData
+ )
+{
+ return PciWrite16 (Address, (UINT16) (PciRead16 (Address) | OrData));
+}
+
+/**
+ Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit
+ value.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 16-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciAnd16 (
+ IN UINTN Address,
+ IN UINT16 AndData
+ )
+{
+ return PciWrite16 (Address, (UINT16) (PciRead16 (Address) & AndData));
+}
+
+/**
+ Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit
+ value, followed a bitwise inclusive OR with another 16-bit value.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData,
+ performs a bitwise inclusive OR between the result of the AND operation and
+ the value specified by OrData, and writes the result to the 16-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciAndThenOr16 (
+ IN UINTN Address,
+ IN UINT16 AndData,
+ IN UINT16 OrData
+ )
+{
+ return PciWrite16 (Address, (UINT16) ((PciRead16 (Address) & AndData) | OrData));
+}
+
+/**
+ Reads a bit field of a PCI configuration register.
+
+ Reads the bit field in a 16-bit PCI configuration register. The bit field is
+ specified by the StartBit and the EndBit. The value of the bit field is
+ returned.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+
+ @return The value of the bit field read from the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciBitFieldRead16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead16 (PciRead16 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a PCI configuration register.
+
+ Writes Value to the bit field of the PCI configuration register. The bit
+ field is specified by the StartBit and the EndBit. All other bits in the
+ destination PCI configuration register are preserved. The new value of the
+ 16-bit register is returned.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param Value New value of the bit field.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciBitFieldWrite16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 Value
+ )
+{
+ return PciWrite16 (
+ Address,
+ BitFieldWrite16 (PciRead16 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit PCI configuration, performs a bitwise OR, and
+ writes the result back to the bit field in the 16-bit port.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 16-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized. Extra left bits in OrData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciBitFieldOr16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 OrData
+ )
+{
+ return PciWrite16 (
+ Address,
+ BitFieldOr16 (PciRead16 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit PCI configuration register, performs a bitwise
+ AND, and writes the result back to the bit field in the 16-bit register.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 16-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized. Extra left bits in AndData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciBitFieldAnd16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 AndData
+ )
+{
+ return PciWrite16 (
+ Address,
+ BitFieldAnd16 (PciRead16 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit port, performs a bitwise AND followed by a
+ bitwise inclusive OR, and writes the result back to the bit field in the
+ 16-bit port.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND followed by a bitwise inclusive OR between the read result and
+ the value specified by AndData, and writes the result to the 16-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized. Extra left bits in both AndData and
+ OrData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 16-bit boundary, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciBitFieldAndThenOr16 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 AndData,
+ IN UINT16 OrData
+ )
+{
+ return PciWrite16 (
+ Address,
+ BitFieldAndThenOr16 (PciRead16 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 32-bit PCI configuration register.
+
+ Reads and returns the 32-bit PCI configuration register specified by Address.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciRead32 (
+ IN UINTN Address
+ )
+{
+ ASSERT_INVALID_PCI_ADDRESS (Address, 3);
+
+ return PeiPciLibPciCfg2ReadWorker (Address, EfiPeiPciCfgWidthUint32);
+}
+
+/**
+ Writes a 32-bit PCI configuration register.
+
+ Writes the 32-bit PCI configuration register specified by Address with the
+ value specified by Value. Value is returned. This function must guarantee
+ that all PCI read and write operations are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciWrite32 (
+ IN UINTN Address,
+ IN UINT32 Data
+ )
+{
+ ASSERT_INVALID_PCI_ADDRESS (Address, 3);
+
+ return PeiPciLibPciCfg2WriteWorker (Address, EfiPeiPciCfgWidthUint32, Data);
+}
+
+/**
+ Performs a bitwise inclusive OR of a 32-bit PCI configuration register with
+ a 32-bit value.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 32-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciOr32 (
+ IN UINTN Address,
+ IN UINT32 OrData
+ )
+{
+ return PciWrite32 (Address, PciRead32 (Address) | OrData);
+}
+
+/**
+ Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit
+ value.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 32-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciAnd32 (
+ IN UINTN Address,
+ IN UINT32 AndData
+ )
+{
+ return PciWrite32 (Address, PciRead32 (Address) & AndData);
+}
+
+/**
+ Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit
+ value, followed a bitwise inclusive OR with another 32-bit value.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData,
+ performs a bitwise inclusive OR between the result of the AND operation and
+ the value specified by OrData, and writes the result to the 32-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciAndThenOr32 (
+ IN UINTN Address,
+ IN UINT32 AndData,
+ IN UINT32 OrData
+ )
+{
+ return PciWrite32 (Address, (PciRead32 (Address) & AndData) | OrData);
+}
+
+/**
+ Reads a bit field of a PCI configuration register.
+
+ Reads the bit field in a 32-bit PCI configuration register. The bit field is
+ specified by the StartBit and the EndBit. The value of the bit field is
+ returned.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+
+ @return The value of the bit field read from the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciBitFieldRead32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead32 (PciRead32 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a PCI configuration register.
+
+ Writes Value to the bit field of the PCI configuration register. The bit
+ field is specified by the StartBit and the EndBit. All other bits in the
+ destination PCI configuration register are preserved. The new value of the
+ 32-bit register is returned.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param Value New value of the bit field.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciBitFieldWrite32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 Value
+ )
+{
+ return PciWrite32 (
+ Address,
+ BitFieldWrite32 (PciRead32 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit PCI configuration, performs a bitwise OR, and
+ writes the result back to the bit field in the 32-bit port.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 32-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized. Extra left bits in OrData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciBitFieldOr32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 OrData
+ )
+{
+ return PciWrite32 (
+ Address,
+ BitFieldOr32 (PciRead32 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit PCI configuration register, performs a bitwise
+ AND, and writes the result back to the bit field in the 32-bit register.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 32-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized. Extra left bits in AndData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciBitFieldAnd32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 AndData
+ )
+{
+ return PciWrite32 (
+ Address,
+ BitFieldAnd32 (PciRead32 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit port, performs a bitwise AND followed by a
+ bitwise inclusive OR, and writes the result back to the bit field in the
+ 32-bit port.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND followed by a bitwise inclusive OR between the read result and
+ the value specified by AndData, and writes the result to the 32-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized. Extra left bits in both AndData and
+ OrData are stripped.
+
+ If Address > 0x0FFFFFFF, then ASSERT().
+ If Address is not aligned on a 32-bit boundary, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciBitFieldAndThenOr32 (
+ IN UINTN Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 AndData,
+ IN UINT32 OrData
+ )
+{
+ return PciWrite32 (
+ Address,
+ BitFieldAndThenOr32 (PciRead32 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a range of PCI configuration registers into a caller supplied buffer.
+
+ Reads the range of PCI configuration registers specified by StartAddress and
+ Size into the buffer specified by Buffer. This function only allows the PCI
+ configuration registers from a single PCI function to be read. Size is
+ returned. When possible 32-bit PCI configuration read cycles are used to read
+ from StartAdress to StartAddress + Size. Due to alignment restrictions, 8-bit
+ and 16-bit PCI configuration read cycles may be used at the beginning and the
+ end of the range.
+
+ If StartAddress > 0x0FFFFFFF, then ASSERT().
+ If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().
+ If Size > 0 and Buffer is NULL, then ASSERT().
+
+ @param StartAddress Starting address that encodes the PCI Bus, Device,
+ Function and Register.
+ @param Size Size in bytes of the transfer.
+ @param Buffer Pointer to a buffer receiving the data read.
+
+ @return Size
+
+**/
+UINTN
+EFIAPI
+PciReadBuffer (
+ IN UINTN StartAddress,
+ IN UINTN Size,
+ OUT VOID *Buffer
+ )
+{
+ UINTN ReturnValue;
+
+ ASSERT_INVALID_PCI_ADDRESS (StartAddress, 0);
+ ASSERT (((StartAddress & 0xFFF) + Size) <= 0x100);
+
+ if (Size == 0) {
+ return Size;
+ }
+
+ ASSERT (Buffer != NULL);
+
+ //
+ // Save Size for return
+ //
+ ReturnValue = Size;
+
+ if ((StartAddress & 1) != 0) {
+ //
+ // Read a byte if StartAddress is byte aligned
+ //
+ *(volatile UINT8 *)Buffer = PciRead8 (StartAddress);
+ StartAddress += sizeof (UINT8);
+ Size -= sizeof (UINT8);
+ Buffer = (UINT8*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16) && (StartAddress & 2) != 0) {
+ //
+ // Read a word if StartAddress is word aligned
+ //
+ *(volatile UINT16 *)Buffer = PciRead16 (StartAddress);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ while (Size >= sizeof (UINT32)) {
+ //
+ // Read as many double words as possible
+ //
+ *(volatile UINT32 *)Buffer = PciRead32 (StartAddress);
+ StartAddress += sizeof (UINT32);
+ Size -= sizeof (UINT32);
+ Buffer = (UINT32*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16)) {
+ //
+ // Read the last remaining word if exist
+ //
+ *(volatile UINT16 *)Buffer = PciRead16 (StartAddress);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT8)) {
+ //
+ // Read the last remaining byte if exist
+ //
+ *(volatile UINT8 *)Buffer = PciRead8 (StartAddress);
+ }
+
+ return ReturnValue;
+}
+
+/**
+ Copies the data in a caller supplied buffer to a specified range of PCI
+ configuration space.
+
+ Writes the range of PCI configuration registers specified by StartAddress and
+ Size from the buffer specified by Buffer. This function only allows the PCI
+ configuration registers from a single PCI function to be written. Size is
+ returned. When possible 32-bit PCI configuration write cycles are used to
+ write from StartAdress to StartAddress + Size. Due to alignment restrictions,
+ 8-bit and 16-bit PCI configuration write cycles may be used at the beginning
+ and the end of the range.
+
+ If StartAddress > 0x0FFFFFFF, then ASSERT().
+ If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().
+ If Size > 0 and Buffer is NULL, then ASSERT().
+
+ @param StartAddress Starting address that encodes the PCI Bus, Device,
+ Function and Register.
+ @param Size Size in bytes of the transfer.
+ @param Buffer Pointer to a buffer containing the data to write.
+
+ @return Size
+
+**/
+UINTN
+EFIAPI
+PciWriteBuffer (
+ IN UINTN StartAddress,
+ IN UINTN Size,
+ IN VOID *Buffer
+ )
+{
+ UINTN ReturnValue;
+
+ ASSERT_INVALID_PCI_ADDRESS (StartAddress, 0);
+ ASSERT (((StartAddress & 0xFFF) + Size) <= 0x100);
+
+ if (Size == 0) {
+ return 0;
+ }
+
+ ASSERT (Buffer != NULL);
+
+ //
+ // Save Size for return
+ //
+ ReturnValue = Size;
+
+ if ((StartAddress & 1) != 0) {
+ //
+ // Write a byte if StartAddress is byte aligned
+ //
+ PciWrite8 (StartAddress, *(UINT8*)Buffer);
+ StartAddress += sizeof (UINT8);
+ Size -= sizeof (UINT8);
+ Buffer = (UINT8*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16) && (StartAddress & 2) != 0) {
+ //
+ // Write a word if StartAddress is word aligned
+ //
+ PciWrite16 (StartAddress, *(UINT16*)Buffer);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ while (Size >= sizeof (UINT32)) {
+ //
+ // Write as many double words as possible
+ //
+ PciWrite32 (StartAddress, *(UINT32*)Buffer);
+ StartAddress += sizeof (UINT32);
+ Size -= sizeof (UINT32);
+ Buffer = (UINT32*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16)) {
+ //
+ // Write the last remaining word if exist
+ //
+ PciWrite16 (StartAddress, *(UINT16*)Buffer);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT8)) {
+ //
+ // Write the last remaining byte if exist
+ //
+ PciWrite8 (StartAddress, *(UINT8*)Buffer);
+ }
+
+ return ReturnValue;
+}
diff --git a/MdePkg/Library/PeiPciLibPciCfg2/PeiPciLibPciCfg2.inf b/MdePkg/Library/PeiPciLibPciCfg2/PeiPciLibPciCfg2.inf new file mode 100644 index 0000000000..3fce912cf7 --- /dev/null +++ b/MdePkg/Library/PeiPciLibPciCfg2/PeiPciLibPciCfg2.inf @@ -0,0 +1,55 @@ +# @file
+# Component description file for PCI Lib using PCI CFG2 PPI
+#
+# This library produces the APIs from the PCI Library and implements
+# these APIs by calling into the EFI_PEI_PCI CFG2 PPI. One or more EFI_PEI_PCI CFG2
+# PPIs are typically produced by a chipset specific PEIM. This library only uses
+# the first PPI found, so this library instance should only be used platforms
+# with a single PCI segment.
+#
+# Copyright (c) 2007, Intel Corporation.
+#
+# 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.
+#
+#
+#
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = PeiPciLibPciCfg2
+ FILE_GUID = FA3AD693-D58A-4619-960B-8EE85C914870
+ MODULE_TYPE = PEIM
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PciLib|PEIM
+ EDK_RELEASE_VERSION = 0x00020000
+ EFI_SPECIFICATION_VERSION = 0x00020000
+
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC
+#
+
+[Sources.common]
+ PciLib.c
+
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+
+[LibraryClasses]
+ PeiServicesTablePointerLib
+ BaseLib
+ DebugLib
+ PeiServicesLib
+
+[Ppis]
+ gEfiPciCfg2PpiGuid # PPI ALWAYS_CONSUMED
+
diff --git a/MdePkg/Library/PeiPciSegmentLibPciCfg2/PciSegmentLib.c b/MdePkg/Library/PeiPciSegmentLibPciCfg2/PciSegmentLib.c new file mode 100644 index 0000000000..92f0846e29 --- /dev/null +++ b/MdePkg/Library/PeiPciSegmentLibPciCfg2/PciSegmentLib.c @@ -0,0 +1,1387 @@ +/** @file
+ PCI Segment Library implementation using PCI CFG2 PPI.
+
+ Copyright (c) 2007 - 2008, Intel Corporation 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 <PiPei.h>
+
+#include <Ppi/PciCfg2.h>
+
+#include <Library/PciSegmentLib.h>
+#include <Library/BaseLib.h>
+#include <Library/PeiServicesTablePointerLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PeiServicesLib.h>
+
+/**
+ Assert the validity of a PCI Segment address.
+ A valid PCI Segment address should not contain 1's in bits 31:28
+
+ @param A The address to validate.
+ @param M Additional bits to assert to be zero.
+
+**/
+#define ASSERT_INVALID_PCI_SEGMENT_ADDRESS(A,M) \
+ ASSERT (((A) & (0xf0000000 | (M))) == 0)
+
+/**
+ Translate PCI Lib address into format of PCI CFG2 PPI.
+
+ @param A Address that encodes the PCI Bus, Device, Function and
+ Register.
+
+**/
+#define PCI_TO_PCICFG2_ADDRESS(A) \
+ (((A) << 4) & 0xff000000) | (((A) >> 4) & 0x00000700) | (((A) << 1) & 0x001f0000) | ((UINT64)((A) & 0xFFF) << 32)
+
+/**
+ Gets PCI CFG2 PPI.
+
+ This internal function retrieves PCI CFG2 PPI from PPI database.
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and Register.
+
+ @return The pointer to PCI CFG2 PPI.
+
+**/
+EFI_PEI_PCI_CFG2_PPI *
+InternalGetPciCfg2Ppi (
+ IN UINT64 Address
+ )
+{
+ EFI_STATUS Status;
+ UINTN Instance;
+ EFI_PEI_PCI_CFG2_PPI *PciCfg2Ppi;
+ UINT64 SegmentNumber;
+
+ Instance = 0;
+ PciCfg2Ppi = NULL;
+ SegmentNumber = BitFieldRead64 (Address, 32, 63);
+
+ //
+ // Loop through all instances of the PPI and match segment number
+ //
+ do {
+ Status = PeiServicesLocatePpi(
+ &gEfiPciCfg2PpiGuid,
+ Instance,
+ NULL,
+ (VOID**) &PciCfg2Ppi
+ );
+ ASSERT_EFI_ERROR (Status);
+ Instance++;
+ } while (PciCfg2Ppi->Segment != SegmentNumber);
+
+ return PciCfg2Ppi;
+}
+
+/**
+ Internal worker function to read a PCI configuration register.
+
+ This function wraps EFI_PEI_PCI_CFG2_PPI.Read() service.
+ It reads and returns the PCI configuration register specified by Address,
+ the width of data is specified by Width.
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Width Width of data to read
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT32
+PeiPciSegmentLibPciCfg2ReadWorker (
+ IN UINT64 Address,
+ IN EFI_PEI_PCI_CFG_PPI_WIDTH Width
+ )
+{
+ UINT32 Data;
+ CONST EFI_PEI_PCI_CFG2_PPI *PciCfg2Ppi;
+
+ PciCfg2Ppi = InternalGetPciCfg2Ppi (Address);
+
+ PciCfg2Ppi->Read (
+ GetPeiServicesTablePointer (),
+ PciCfg2Ppi,
+ Width,
+ PCI_TO_PCICFG2_ADDRESS (Address),
+ &Data
+ );
+
+ return Data;
+}
+
+/**
+ Internal worker function to writes a PCI configuration register.
+
+ This function wraps EFI_PEI_PCI_CFG2_PPI.Write() service.
+ It writes the PCI configuration register specified by Address with the
+ value specified by Data. The width of data is specifed by Width.
+ Data is returned.
+
+ @param Address Address that encodes the PCI Bus, Device, Function and
+ Register.
+ @param Width Width of data to write
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT32
+PeiPciSegmentLibPciCfg2WriteWorker (
+ IN UINT64 Address,
+ IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,
+ IN UINT32 Data
+ )
+{
+ CONST EFI_PEI_PCI_CFG2_PPI *PciCfg2Ppi;
+
+ PciCfg2Ppi = InternalGetPciCfg2Ppi (Address);
+
+ PciCfg2Ppi->Write (
+ GetPeiServicesTablePointer (),
+ PciCfg2Ppi,
+ Width,
+ PCI_TO_PCICFG2_ADDRESS (Address),
+ &Data
+ );
+
+ return Data;
+}
+
+/**
+ Reads an 8-bit PCI configuration register.
+
+ Reads and returns the 8-bit PCI configuration register specified by Address.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentRead8 (
+ IN UINT64 Address
+ )
+{
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (Address, 0);
+
+ return (UINT8) PeiPciSegmentLibPciCfg2ReadWorker (Address, EfiPeiPciCfgWidthUint8);
+}
+
+/**
+ Writes an 8-bit PCI configuration register.
+
+ Writes the 8-bit PCI configuration register specified by Address with the
+ value specified by Value. Value is returned. This function must guarantee
+ that all PCI read and write operations are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentWrite8 (
+ IN UINT64 Address,
+ IN UINT8 Data
+ )
+{
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (Address, 0);
+
+ return (UINT8) PeiPciSegmentLibPciCfg2WriteWorker (Address, EfiPeiPciCfgWidthUint8, Data);
+}
+
+/**
+ Performs a bitwise inclusive OR of an 8-bit PCI configuration register with
+ an 8-bit value.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 8-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentOr8 (
+ IN UINT64 Address,
+ IN UINT8 OrData
+ )
+{
+ return PciSegmentWrite8 (Address, (UINT8) (PciSegmentRead8 (Address) | OrData));
+}
+
+/**
+ Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit
+ value.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 8-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentAnd8 (
+ IN UINT64 Address,
+ IN UINT8 AndData
+ )
+{
+ return PciSegmentWrite8 (Address, (UINT8) (PciSegmentRead8 (Address) & AndData));
+}
+
+/**
+ Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit
+ value, followed a bitwise inclusive OR with another 8-bit value.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData,
+ performs a bitwise inclusive OR between the result of the AND operation and
+ the value specified by OrData, and writes the result to the 8-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentAndThenOr8 (
+ IN UINT64 Address,
+ IN UINT8 AndData,
+ IN UINT8 OrData
+ )
+{
+ return PciSegmentWrite8 (Address, (UINT8) ((PciSegmentRead8 (Address) & AndData) | OrData));
+}
+
+/**
+ Reads a bit field of a PCI configuration register.
+
+ Reads the bit field in an 8-bit PCI configuration register. The bit field is
+ specified by the StartBit and the EndBit. The value of the bit field is
+ returned.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+
+ @return The value of the bit field read from the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentBitFieldRead8 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead8 (PciSegmentRead8 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a PCI configuration register.
+
+ Writes Value to the bit field of the PCI configuration register. The bit
+ field is specified by the StartBit and the EndBit. All other bits in the
+ destination PCI configuration register are preserved. The new value of the
+ 8-bit register is returned.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param Value New value of the bit field.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentBitFieldWrite8 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 Value
+ )
+{
+ return PciSegmentWrite8 (
+ Address,
+ BitFieldWrite8 (PciSegmentRead8 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit PCI configuration, performs a bitwise OR, and
+ writes the result back to the bit field in the 8-bit port.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 8-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized. Extra left bits in OrData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentBitFieldOr8 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 OrData
+ )
+{
+ return PciSegmentWrite8 (
+ Address,
+ BitFieldOr8 (PciSegmentRead8 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit PCI configuration register, performs a bitwise
+ AND, and writes the result back to the bit field in the 8-bit register.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 8-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized. Extra left bits in AndData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentBitFieldAnd8 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 AndData
+ )
+{
+ return PciSegmentWrite8 (
+ Address,
+ BitFieldAnd8 (PciSegmentRead8 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in an 8-bit port, performs a bitwise AND followed by a
+ bitwise inclusive OR, and writes the result back to the bit field in the
+ 8-bit port.
+
+ Reads the 8-bit PCI configuration register specified by Address, performs a
+ bitwise AND followed by a bitwise inclusive OR between the read result and
+ the value specified by AndData, and writes the result to the 8-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized. Extra left bits in both AndData and
+ OrData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 7, then ASSERT().
+ If EndBit is greater than 7, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..7.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..7.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT8
+EFIAPI
+PciSegmentBitFieldAndThenOr8 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT8 AndData,
+ IN UINT8 OrData
+ )
+{
+ return PciSegmentWrite8 (
+ Address,
+ BitFieldAndThenOr8 (PciSegmentRead8 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 16-bit PCI configuration register.
+
+ Reads and returns the 16-bit PCI configuration register specified by Address.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentRead16 (
+ IN UINT64 Address
+ )
+{
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (Address, 1);
+
+ return (UINT16) PeiPciSegmentLibPciCfg2ReadWorker (Address, EfiPeiPciCfgWidthUint16);
+}
+
+/**
+ Writes a 16-bit PCI configuration register.
+
+ Writes the 16-bit PCI configuration register specified by Address with the
+ value specified by Value. Value is returned. This function must guarantee
+ that all PCI read and write operations are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentWrite16 (
+ IN UINT64 Address,
+ IN UINT16 Data
+ )
+{
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (Address, 1);
+
+ return (UINT16) PeiPciSegmentLibPciCfg2WriteWorker (Address, EfiPeiPciCfgWidthUint16, Data);
+}
+
+/**
+ Performs a bitwise inclusive OR of a 16-bit PCI configuration register with
+ a 16-bit value.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 16-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentOr16 (
+ IN UINT64 Address,
+ IN UINT16 OrData
+ )
+{
+ return PciSegmentWrite16 (Address, (UINT16) (PciSegmentRead16 (Address) | OrData));
+}
+
+/**
+ Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit
+ value.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 16-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentAnd16 (
+ IN UINT64 Address,
+ IN UINT16 AndData
+ )
+{
+ return PciSegmentWrite16 (Address, (UINT16) (PciSegmentRead16 (Address) & AndData));
+}
+
+/**
+ Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit
+ value, followed a bitwise inclusive OR with another 16-bit value.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData,
+ performs a bitwise inclusive OR between the result of the AND operation and
+ the value specified by OrData, and writes the result to the 16-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentAndThenOr16 (
+ IN UINT64 Address,
+ IN UINT16 AndData,
+ IN UINT16 OrData
+ )
+{
+ return PciSegmentWrite16 (Address, (UINT16) ((PciSegmentRead16 (Address) & AndData) | OrData));
+}
+
+/**
+ Reads a bit field of a PCI configuration register.
+
+ Reads the bit field in a 16-bit PCI configuration register. The bit field is
+ specified by the StartBit and the EndBit. The value of the bit field is
+ returned.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+
+ @return The value of the bit field read from the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentBitFieldRead16 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead16 (PciSegmentRead16 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a PCI configuration register.
+
+ Writes Value to the bit field of the PCI configuration register. The bit
+ field is specified by the StartBit and the EndBit. All other bits in the
+ destination PCI configuration register are preserved. The new value of the
+ 16-bit register is returned.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param Value New value of the bit field.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentBitFieldWrite16 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 Value
+ )
+{
+ return PciSegmentWrite16 (
+ Address,
+ BitFieldWrite16 (PciSegmentRead16 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit PCI configuration, performs a bitwise OR, and
+ writes the result back to the bit field in the 16-bit port.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 16-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized. Extra left bits in OrData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentBitFieldOr16 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 OrData
+ )
+{
+ return PciSegmentWrite16 (
+ Address,
+ BitFieldOr16 (PciSegmentRead16 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit PCI configuration register, performs a bitwise
+ AND, and writes the result back to the bit field in the 16-bit register.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 16-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized. Extra left bits in AndData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentBitFieldAnd16 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 AndData
+ )
+{
+ return PciSegmentWrite16 (
+ Address,
+ BitFieldAnd16 (PciSegmentRead16 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 16-bit port, performs a bitwise AND followed by a
+ bitwise inclusive OR, and writes the result back to the bit field in the
+ 16-bit port.
+
+ Reads the 16-bit PCI configuration register specified by Address, performs a
+ bitwise AND followed by a bitwise inclusive OR between the read result and
+ the value specified by AndData, and writes the result to the 16-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized. Extra left bits in both AndData and
+ OrData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 15, then ASSERT().
+ If EndBit is greater than 15, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..15.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..15.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT16
+EFIAPI
+PciSegmentBitFieldAndThenOr16 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT16 AndData,
+ IN UINT16 OrData
+ )
+{
+ return PciSegmentWrite16 (
+ Address,
+ BitFieldAndThenOr16 (PciSegmentRead16 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a 32-bit PCI configuration register.
+
+ Reads and returns the 32-bit PCI configuration register specified by Address.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+
+ @return The value read from the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentRead32 (
+ IN UINT64 Address
+ )
+{
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (Address, 3);
+
+ return PeiPciSegmentLibPciCfg2ReadWorker (Address, EfiPeiPciCfgWidthUint32);
+}
+
+/**
+ Writes a 32-bit PCI configuration register.
+
+ Writes the 32-bit PCI configuration register specified by Address with the
+ value specified by Value. Value is returned. This function must guarantee
+ that all PCI read and write operations are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param Data The value to write.
+
+ @return The value written to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentWrite32 (
+ IN UINT64 Address,
+ IN UINT32 Data
+ )
+{
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (Address, 3);
+
+ return PeiPciSegmentLibPciCfg2WriteWorker (Address, EfiPeiPciCfgWidthUint32, Data);
+}
+
+/**
+ Performs a bitwise inclusive OR of a 32-bit PCI configuration register with
+ a 32-bit value.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 32-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentOr32 (
+ IN UINT64 Address,
+ IN UINT32 OrData
+ )
+{
+ return PciSegmentWrite32 (Address, PciSegmentRead32 (Address) | OrData);
+}
+
+/**
+ Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit
+ value.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 32-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentAnd32 (
+ IN UINT64 Address,
+ IN UINT32 AndData
+ )
+{
+ return PciSegmentWrite32 (Address, PciSegmentRead32 (Address) & AndData);
+}
+
+/**
+ Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit
+ value, followed a bitwise inclusive OR with another 32-bit value.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData,
+ performs a bitwise inclusive OR between the result of the AND operation and
+ the value specified by OrData, and writes the result to the 32-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized.
+
+ If any reserved bits in Address are set, then ASSERT().
+
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function and
+ Register.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentAndThenOr32 (
+ IN UINT64 Address,
+ IN UINT32 AndData,
+ IN UINT32 OrData
+ )
+{
+ return PciSegmentWrite32 (Address, (PciSegmentRead32 (Address) & AndData) | OrData);
+}
+
+/**
+ Reads a bit field of a PCI configuration register.
+
+ Reads the bit field in a 32-bit PCI configuration register. The bit field is
+ specified by the StartBit and the EndBit. The value of the bit field is
+ returned.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to read.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+
+ @return The value of the bit field read from the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentBitFieldRead32 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit
+ )
+{
+ return BitFieldRead32 (PciSegmentRead32 (Address), StartBit, EndBit);
+}
+
+/**
+ Writes a bit field to a PCI configuration register.
+
+ Writes Value to the bit field of the PCI configuration register. The bit
+ field is specified by the StartBit and the EndBit. All other bits in the
+ destination PCI configuration register are preserved. The new value of the
+ 32-bit register is returned.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param Value New value of the bit field.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentBitFieldWrite32 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 Value
+ )
+{
+ return PciSegmentWrite32 (
+ Address,
+ BitFieldWrite32 (PciSegmentRead32 (Address), StartBit, EndBit, Value)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit PCI configuration, performs a bitwise OR, and
+ writes the result back to the bit field in the 32-bit port.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise inclusive OR between the read result and the value specified by
+ OrData, and writes the result to the 32-bit PCI configuration register
+ specified by Address. The value written to the PCI configuration register is
+ returned. This function must guarantee that all PCI read and write operations
+ are serialized. Extra left bits in OrData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param OrData The value to OR with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentBitFieldOr32 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 OrData
+ )
+{
+ return PciSegmentWrite32 (
+ Address,
+ BitFieldOr32 (PciSegmentRead32 (Address), StartBit, EndBit, OrData)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit PCI configuration register, performs a bitwise
+ AND, and writes the result back to the bit field in the 32-bit register.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND between the read result and the value specified by AndData, and
+ writes the result to the 32-bit PCI configuration register specified by
+ Address. The value written to the PCI configuration register is returned.
+ This function must guarantee that all PCI read and write operations are
+ serialized. Extra left bits in AndData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param AndData The value to AND with the PCI configuration register.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentBitFieldAnd32 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 AndData
+ )
+{
+ return PciSegmentWrite32 (
+ Address,
+ BitFieldAnd32 (PciSegmentRead32 (Address), StartBit, EndBit, AndData)
+ );
+}
+
+/**
+ Reads a bit field in a 32-bit port, performs a bitwise AND followed by a
+ bitwise inclusive OR, and writes the result back to the bit field in the
+ 32-bit port.
+
+ Reads the 32-bit PCI configuration register specified by Address, performs a
+ bitwise AND followed by a bitwise inclusive OR between the read result and
+ the value specified by AndData, and writes the result to the 32-bit PCI
+ configuration register specified by Address. The value written to the PCI
+ configuration register is returned. This function must guarantee that all PCI
+ read and write operations are serialized. Extra left bits in both AndData and
+ OrData are stripped.
+
+ If any reserved bits in Address are set, then ASSERT().
+ If StartBit is greater than 31, then ASSERT().
+ If EndBit is greater than 31, then ASSERT().
+ If EndBit is less than StartBit, then ASSERT().
+
+ @param Address PCI configuration register to write.
+ @param StartBit The ordinal of the least significant bit in the bit field.
+ Range 0..31.
+ @param EndBit The ordinal of the most significant bit in the bit field.
+ Range 0..31.
+ @param AndData The value to AND with the PCI configuration register.
+ @param OrData The value to OR with the result of the AND operation.
+
+ @return The value written back to the PCI configuration register.
+
+**/
+UINT32
+EFIAPI
+PciSegmentBitFieldAndThenOr32 (
+ IN UINT64 Address,
+ IN UINTN StartBit,
+ IN UINTN EndBit,
+ IN UINT32 AndData,
+ IN UINT32 OrData
+ )
+{
+ return PciSegmentWrite32 (
+ Address,
+ BitFieldAndThenOr32 (PciSegmentRead32 (Address), StartBit, EndBit, AndData, OrData)
+ );
+}
+
+/**
+ Reads a range of PCI configuration registers into a caller supplied buffer.
+
+ Reads the range of PCI configuration registers specified by StartAddress and
+ Size into the buffer specified by Buffer. This function only allows the PCI
+ configuration registers from a single PCI function to be read. Size is
+ returned. When possible 32-bit PCI configuration read cycles are used to read
+ from StartAdress to StartAddress + Size. Due to alignment restrictions, 8-bit
+ and 16-bit PCI configuration read cycles may be used at the beginning and the
+ end of the range.
+
+ If StartAddress > 0x0FFFFFFF, then ASSERT().
+ If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().
+ If Size > 0 and Buffer is NULL, then ASSERT().
+
+ @param StartAddress Starting Address that encodes the PCI Segment, Bus, Device,
+ Function and Register.
+ @param Size Size in bytes of the transfer.
+ @param Buffer Pointer to a buffer receiving the data read.
+
+ @return Size
+
+**/
+UINTN
+EFIAPI
+PciSegmentReadBuffer (
+ IN UINT64 StartAddress,
+ IN UINTN Size,
+ OUT VOID *Buffer
+ )
+{
+ UINTN ReturnValue;
+
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (StartAddress, 0);
+ ASSERT (((StartAddress & 0xFFF) + Size) <= 0x1000);
+
+ if (Size == 0) {
+ return Size;
+ }
+
+ ASSERT (Buffer != NULL);
+
+ //
+ // Save Size for return
+ //
+ ReturnValue = Size;
+
+ if ((StartAddress & 1) != 0) {
+ //
+ // Read a byte if StartAddress is byte aligned
+ //
+ *(volatile UINT8 *)Buffer = PciSegmentRead8 (StartAddress);
+ StartAddress += sizeof (UINT8);
+ Size -= sizeof (UINT8);
+ Buffer = (UINT8*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16) && (StartAddress & 2) != 0) {
+ //
+ // Read a word if StartAddress is word aligned
+ //
+ *(volatile UINT16 *)Buffer = PciSegmentRead16 (StartAddress);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ while (Size >= sizeof (UINT32)) {
+ //
+ // Read as many double words as possible
+ //
+ *(volatile UINT32 *)Buffer = PciSegmentRead32 (StartAddress);
+ StartAddress += sizeof (UINT32);
+ Size -= sizeof (UINT32);
+ Buffer = (UINT32*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16)) {
+ //
+ // Read the last remaining word if exist
+ //
+ *(volatile UINT16 *)Buffer = PciSegmentRead16 (StartAddress);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT8)) {
+ //
+ // Read the last remaining byte if exist
+ //
+ *(volatile UINT8 *)Buffer = PciSegmentRead8 (StartAddress);
+ }
+
+ return ReturnValue;
+}
+
+/**
+ Copies the data in a caller supplied buffer to a specified range of PCI
+ configuration space.
+
+ Writes the range of PCI configuration registers specified by StartAddress and
+ Size from the buffer specified by Buffer. This function only allows the PCI
+ configuration registers from a single PCI function to be written. Size is
+ returned. When possible 32-bit PCI configuration write cycles are used to
+ write from StartAdress to StartAddress + Size. Due to alignment restrictions,
+ 8-bit and 16-bit PCI configuration write cycles may be used at the beginning
+ and the end of the range.
+
+ If StartAddress > 0x0FFFFFFF, then ASSERT().
+ If ((StartAddress & 0xFFF) + Size) > 0x1000, then ASSERT().
+ If Size > 0 and Buffer is NULL, then ASSERT().
+
+ @param StartAddress Starting Address that encodes the PCI Segment, Bus, Device,
+ Function and Register.
+ @param Size Size in bytes of the transfer.
+ @param Buffer Pointer to a buffer containing the data to write.
+
+ @return Size
+
+**/
+UINTN
+EFIAPI
+PciSegmentWriteBuffer (
+ IN UINT64 StartAddress,
+ IN UINTN Size,
+ IN VOID *Buffer
+ )
+{
+ UINTN ReturnValue;
+
+ ASSERT_INVALID_PCI_SEGMENT_ADDRESS (StartAddress, 0);
+ ASSERT (((StartAddress & 0xFFF) + Size) <= 0x1000);
+
+ if (Size == 0) {
+ return 0;
+ }
+
+ ASSERT (Buffer != NULL);
+
+ //
+ // Save Size for return
+ //
+ ReturnValue = Size;
+
+ if ((StartAddress & 1) != 0) {
+ //
+ // Write a byte if StartAddress is byte aligned
+ //
+ PciSegmentWrite8 (StartAddress, *(UINT8*)Buffer);
+ StartAddress += sizeof (UINT8);
+ Size -= sizeof (UINT8);
+ Buffer = (UINT8*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16) && (StartAddress & 2) != 0) {
+ //
+ // Write a word if StartAddress is word aligned
+ //
+ PciSegmentWrite16 (StartAddress, *(UINT16*)Buffer);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ while (Size >= sizeof (UINT32)) {
+ //
+ // Write as many double words as possible
+ //
+ PciSegmentWrite32 (StartAddress, *(UINT32*)Buffer);
+ StartAddress += sizeof (UINT32);
+ Size -= sizeof (UINT32);
+ Buffer = (UINT32*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT16)) {
+ //
+ // Write the last remaining word if exist
+ //
+ PciSegmentWrite16 (StartAddress, *(UINT16*)Buffer);
+ StartAddress += sizeof (UINT16);
+ Size -= sizeof (UINT16);
+ Buffer = (UINT16*)Buffer + 1;
+ }
+
+ if (Size >= sizeof (UINT8)) {
+ //
+ // Write the last remaining byte if exist
+ //
+ PciSegmentWrite8 (StartAddress, *(UINT8*)Buffer);
+ }
+
+ return ReturnValue;
+}
diff --git a/MdePkg/Library/PeiPciSegmentLibPciCfg2/PeiPciSegmentLibPciCfg2.inf b/MdePkg/Library/PeiPciSegmentLibPciCfg2/PeiPciSegmentLibPciCfg2.inf new file mode 100644 index 0000000000..85a1231511 --- /dev/null +++ b/MdePkg/Library/PeiPciSegmentLibPciCfg2/PeiPciSegmentLibPciCfg2.inf @@ -0,0 +1,52 @@ +# @file
+# This driver implements PCI Segment Lib using PCI CFG2 PPI.
+#
+# This library produces the APIs from the PCI Segment Library and
+# implements these APIs by calling into the EFI_PEI_PCI CFG2 PPI. One or more
+# EFI_PEI_PCI CFG2 PPIs are typically produced by a chipset specific PEIM.
+# This library instance should only be used platforms with multiple PCI segments.
+#
+# Copyright (c) 2007 - 2008, Intel Corporation.
+#
+# 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.
+#
+#
+#
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = PeiPciSegmentLibPciCfg2
+ FILE_GUID = 254901AD-7DB7-45f8-93C8-93D579398D9F
+ MODULE_TYPE = PEIM
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PciSegmentLib|PEIM
+ EDK_RELEASE_VERSION = 0x00020000
+ EFI_SPECIFICATION_VERSION = 0x00020000
+
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF
+#
+
+[Sources.common]
+ PciSegmentLib.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ PeiServicesTablePointerLib
+ BaseLib
+ DebugLib
+ PeiServicesLib
+
+[Ppis]
+ gEfiPciCfg2PpiGuid # PPI ALWAYS_CONSUMED
+
diff --git a/MdePkg/Library/UefiPalLib/UefiPalLib.c b/MdePkg/Library/UefiPalLib/UefiPalLib.c new file mode 100644 index 0000000000..e2550387ba --- /dev/null +++ b/MdePkg/Library/UefiPalLib/UefiPalLib.c @@ -0,0 +1,126 @@ +/** @file
+ PAL Library implementation built upon UEFI.
+
+ Copyright (c) 2007 - 2008, Intel Corporation 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 <PiDxe.h>
+
+#include <IndustryStandard/Sal.h>
+#include <Library/UefiLib.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+
+#include <Guid/SalSystemTable.h>
+
+UINT64 mPalProcEntry;
+
+/**
+ Makes a PAL procedure call.
+
+ This is a wrapper function to make a PAL procedure call. Based on the Index value,
+ this API will make static or stacked PAL call. Architected procedures may be designated
+ as required or optional. If a PAL procedure is specified as optional, a unique return
+ code of 0xFFFFFFFFFFFFFFFF is returned in the Status field of the PAL_CALL_RETURN structure.
+ This indicates that the procedure is not present in this PAL implementation. It is the
+ caller's responsibility to check for this return code after calling any optional PAL
+ procedure. No parameter checking is performed on the 4 input parameters, but there are
+ some common rules that the caller should follow when making a PAL call. Any address
+ passed to PAL as buffers for return parameters must be 8-byte aligned. Unaligned addresses
+ may cause undefined results. For those parameters defined as reserved or some fields
+ defined as reserved must be zero filled or the invalid argument return value may be
+ returned or undefined result may occur during the execution of the procedure.
+ This function is only available on IPF.
+
+ @param Index - The PAL procedure Index number.
+ @param Arg2 - The 2nd parameter for PAL procedure calls.
+ @param Arg3 - The 3rd parameter for PAL procedure calls.
+ @param Arg4 - The 4th parameter for PAL procedure calls.
+
+ @return structure returned from the PAL Call procedure, including the status and return value.
+
+**/
+PAL_CALL_RETURN
+EFIAPI
+PalCall (
+ IN UINT64 Index,
+ IN UINT64 Arg2,
+ IN UINT64 Arg3,
+ IN UINT64 Arg4
+ )
+{
+ //
+ // mPalProcEntry is initialized in library constructor as PAL entry.
+ //
+ return AsmPalCall (
+ mPalProcEntry,
+ Index,
+ Arg2,
+ Arg3,
+ Arg4
+ );
+
+}
+
+/**
+ The constructor function of UEFI Pal Lib.
+
+ The constructor function looks up the SAL System Table in the EFI System Configuration
+ Table. Once the SAL System Table is found, the PAL Entry Point in the SAL System Table
+ will be derived and stored inot a global variable for library usage.
+ It will ASSERT() if the SAL System Table cannot be found or the data in the SAL System
+ Table is not the valid data.
+
+ @param ImageHandle The firmware allocated handle for the EFI image.
+ @param SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+UefiPalLibConstructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ SAL_ST_ENTRY_POINT_DESCRIPTOR *SalStEntryDes;
+ SAL_SYSTEM_TABLE_HEADER *SalSystemTable;
+
+ Status = EfiGetSystemConfigurationTable (
+ &gEfiSalSystemTableGuid,
+ (VOID **) &SalSystemTable
+ );
+
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Move the SAL System Table point to the first Entry
+ // Due to the SAL Entry is in ascending order with the Entry type,
+ // the type 0 Entry should be the first if exist.
+ //
+ SalStEntryDes = (SAL_ST_ENTRY_POINT_DESCRIPTOR *)(SalSystemTable + 1);
+
+ //
+ // Assure the SAL ENTRY Type is 0
+ //
+ ASSERT (SalStEntryDes->Type == EFI_SAL_ST_ENTRY_POINT);
+
+ mPalProcEntry = SalStEntryDes->PalProcEntry;
+ //
+ // Make sure the PalCallAddress has the valid value
+ //
+ ASSERT (mPalProcEntry != 0);
+
+ return EFI_SUCCESS;
+}
diff --git a/MdePkg/Library/UefiPalLib/UefiPalLib.inf b/MdePkg/Library/UefiPalLib/UefiPalLib.inf new file mode 100644 index 0000000000..ae2a564472 --- /dev/null +++ b/MdePkg/Library/UefiPalLib/UefiPalLib.inf @@ -0,0 +1,47 @@ +# @file
+# Uefi Instance of PAL Library Class
+#
+# This library implements the PAL Library Class by getting the PAL entry from SAL System
+# Table, and use AsmPalCall to produce the Pal Call.
+#
+# Copyright (c) 2007, Intel Corporation.
+#
+# 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.
+#
+#
+#
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = UefiPalLib
+ FILE_GUID = B7F30170-9E5F-482a-B553-A145A5787003
+ MODULE_TYPE = UEFI_DRIVER
+ VERSION_STRING = 1.04
+ LIBRARY_CLASS = PalLib|UEFI_DRIVER UEFI_APPLICATION
+ EDK_RELEASE_VERSION = 0x00020000
+ EFI_SPECIFICATION_VERSION = 0x00020000
+
+ CONSTRUCTOR = UefiPalLibConstructor
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IPF
+#
+
+[Sources.IPF]
+ UefiPalLib.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ UefiLib
+ BaseLib
+ DebugLib
+
diff --git a/MdePkg/Library/UefiSalLib/UefiSalLib.c b/MdePkg/Library/UefiSalLib/UefiSalLib.c new file mode 100644 index 0000000000..e41cc0d980 --- /dev/null +++ b/MdePkg/Library/UefiSalLib/UefiSalLib.c @@ -0,0 +1,138 @@ +/** @file
+ SAL Library implementation built upon UEFI.
+
+ Copyright (c) 2007 - 2008, Intel Corporation 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 <PiDxe.h>
+#include <IndustryStandard/Sal.h>
+
+#include <Library/SalLib.h>
+#include <Library/UefiLib.h>
+#include <Library/DebugLib.h>
+
+#include <Guid/SalSystemTable.h>
+
+EFI_PLABEL mPlabel;
+SAL_PROC mSalProcEntry;
+
+/**
+ Makes a SAL procedure call.
+
+ This is a wrapper function to make a SAL procedure call.
+ No parameter checking is performed on the 8 input parameters,
+ but there are some common rules that the caller should follow
+ when making a SAL call. Any address passed to SAL as buffers
+ for return parameters must be 8-byte aligned. Unaligned
+ addresses may cause undefined results. For those parameters
+ defined as reserved or some fields defined as reserved must be
+ zero filled or the invalid argument return value may be returned
+ or undefined result may occur during the execution of the procedure.
+ This function is only available on IPF.
+
+ @param Index The SAL procedure Index number
+ @param Arg2 The 2nd parameter for SAL procedure calls
+ @param Arg3 The 3rd parameter for SAL procedure calls
+ @param Arg4 The 4th parameter for SAL procedure calls
+ @param Arg5 The 5th parameter for SAL procedure calls
+ @param Arg6 The 6th parameter for SAL procedure calls
+ @param Arg7 The 7th parameter for SAL procedure calls
+ @param Arg8 The 8th parameter for SAL procedure calls
+
+ @return SAL returned registers.
+
+**/
+SAL_RETURN_REGS
+EFIAPI
+SalCall (
+ IN UINT64 Index,
+ IN UINT64 Arg2,
+ IN UINT64 Arg3,
+ IN UINT64 Arg4,
+ IN UINT64 Arg5,
+ IN UINT64 Arg6,
+ IN UINT64 Arg7,
+ IN UINT64 Arg8
+ )
+{
+ //
+ // mSalProcEntry is initialized in library constructor as SAL entry.
+ //
+ return mSalProcEntry(
+ Index,
+ Arg2,
+ Arg3,
+ Arg4,
+ Arg5,
+ Arg6,
+ Arg7,
+ Arg8
+ );
+
+}
+
+/**
+ The constructor function of UEFI SAL Lib.
+
+ The constructor function looks up the SAL System Table in the EFI System Configuration
+ Table. Once the SAL System Table is found, the SAL Entry Point in the SAL System Table
+ will be derived and stored inot a global variable for library usage.
+ It will ASSERT() if the SAL System Table cannot be found or the data in the SAL System
+ Table is not the valid data.
+
+ @param ImageHandle The firmware allocated handle for the EFI image.
+ @param SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+UefiSalLibConstructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ SAL_ST_ENTRY_POINT_DESCRIPTOR *SalStEntryDes;
+ SAL_SYSTEM_TABLE_HEADER *SalSystemTable;
+
+ Status = EfiGetSystemConfigurationTable (
+ &gEfiSalSystemTableGuid,
+ (VOID **) &SalSystemTable
+ );
+
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Move the SAL System Table point to the first Entry
+ // Due to the SAL Entry is in ascending order with the Entry type,
+ // the type 0 Entry should be the first if exist.
+ //
+ SalStEntryDes = (SAL_ST_ENTRY_POINT_DESCRIPTOR *)(SalSystemTable + 1);
+
+ //
+ // Assure the SAL ENTRY Type is 0
+ //
+ ASSERT (SalStEntryDes->Type == EFI_SAL_ST_ENTRY_POINT);
+
+ mPlabel.EntryPoint = SalStEntryDes->SalProcEntry;
+ mPlabel.GP = SalStEntryDes->SalGlobalDataPointer;
+ //
+ // Make sure the EntryPoint has the real value
+ //
+ ASSERT ((mPlabel.EntryPoint != 0) && (mPlabel.GP != 0));
+
+ mSalProcEntry = (SAL_PROC)((UINT64)&(mPlabel.EntryPoint));
+
+ return EFI_SUCCESS;
+}
diff --git a/MdePkg/Library/UefiSalLib/UefiSalLib.inf b/MdePkg/Library/UefiSalLib/UefiSalLib.inf new file mode 100644 index 0000000000..60fe4eae00 --- /dev/null +++ b/MdePkg/Library/UefiSalLib/UefiSalLib.inf @@ -0,0 +1,45 @@ +# @file
+# The library implements the UEFI SAL Library Class.
+#
+# The library implements the UEFI SAL Library Class.
+# This library is for boot service only modules.
+#
+# Copyright (c) 2007, Intel Corporation.
+#
+# 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.
+#
+#
+#
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = UefiSalLib
+ FILE_GUID = 4ABCFD77-4A33-4089-B003-5F09BCA940A2
+ MODULE_TYPE = UEFI_DRIVER
+ VERSION_STRING = 1.04
+ LIBRARY_CLASS = SalLib|UEFI_DRIVER UEFI_APPLICATION
+ EDK_RELEASE_VERSION = 0x00020000
+ EFI_SPECIFICATION_VERSION = 0x00020000
+
+ CONSTRUCTOR = UefiSalLibConstructor
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IPF
+#
+
+[Sources.IPF]
+ UefiSalLib.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ UefiLib
+ BaseLib
+ DebugLib
diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index cd5f3974f1..2c3d1ae1f2 100644 --- a/MdePkg/MdePkg.dsc +++ b/MdePkg/MdePkg.dsc @@ -78,7 +78,8 @@ MdePkg/Library/DxePiLib/DxePiLib.inf
MdePkg/Library/DxeServicesTableLib/DxeServicesTableLib.inf
MdePkg/Library/DxeSmbusLib/DxeSmbusLib.inf
-
+ MdePkg/Library/DxePciLibPciRootBridgeIo/DxePciLibPciRootBridgeIo.inf
+ MdePkg/Library/DxePciSegmentLibPciRootBridgeIo/DxePciSegmentLibPciRootBridgeIo.inf
MdePkg/Library/PeiCoreEntryPoint/PeiCoreEntryPoint.inf
MdePkg/Library/PeiDxePostCodeLibReportStatusCode/PeiDxePostCodeLibReportStatusCode.inf
@@ -94,6 +95,8 @@ MdePkg/Library/PeiServicesLib/PeiServicesLib.inf
MdePkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointerLib.inf
MdePkg/Library/PeiSmbusLibSmbus2Ppi/PeiSmbusLibSmbus2Ppi.inf
+ MdePkg/Library/PeiPciLibPciCfg2/PeiPciLibPciCfg2.inf
+ MdePkg/Library/PeiPciSegmentLibPciCfg2/PeiPciSegmentLibPciCfg2.inf
MdePkg/Library/UefiApplicationEntryPoint/UefiApplicationEntryPoint.inf
MdePkg/Library/UefiBootServicesTableLib/UefiBootServicesTableLib.inf
@@ -129,6 +132,8 @@ MdePkg/Library/PeiPalLib/PeiPalLib.inf
MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointerLibKr7.inf
MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
+ MdePkg/Library/UefiPalLib/UefiPalLib.inf
+ MdePkg/Library/UefiSalLib/UefiSalLib.inf
[Components.EBC]
|