diff options
| author | Ruiyu Ni <ruiyu.ni@intel.com> | 2016-03-18 14:29:42 +0800 |
|---|---|---|
| committer | Ruiyu Ni <ruiyu.ni@intel.com> | 2016-03-29 11:22:07 +0800 |
| commit | 111d79db47a728a9bb6446d70b841ee8ec79deab (patch) | |
| tree | 763cf8974d99a5b90e7f9ad56e9c97a591230009 /PcAtChipsetPkg | |
| parent | 3751a092b67f2d3481fa2295cb45a0afda6a9118 (diff) | |
| download | edk2-111d79db47a728a9bb6446d70b841ee8ec79deab.tar.gz edk2-111d79db47a728a9bb6446d70b841ee8ec79deab.tar.bz2 edk2-111d79db47a728a9bb6446d70b841ee8ec79deab.zip | |
PcAtChipsetPkg/PciHostBridge: Remove PciHostBridge driver
MdeModulePkg contains a new PciHostBridgeDxe driver which is a
super set of PcAtChipsetPkg/PciHostBridgeDxe.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'PcAtChipsetPkg')
| -rw-r--r-- | PcAtChipsetPkg/PcAtChipsetPkg.dsc | 1 | ||||
| -rw-r--r-- | PcAtChipsetPkg/PciHostBridgeDxe/Ia32/IoFifo.S | 134 | ||||
| -rw-r--r-- | PcAtChipsetPkg/PciHostBridgeDxe/Ia32/IoFifo.asm | 140 | ||||
| -rw-r--r-- | PcAtChipsetPkg/PciHostBridgeDxe/IoFifo.h | 176 | ||||
| -rw-r--r-- | PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.c | 1396 | ||||
| -rw-r--r-- | PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.h | 649 | ||||
| -rw-r--r-- | PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.uni | 22 | ||||
| -rw-r--r-- | PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridgeDxe.inf | 68 | ||||
| -rw-r--r-- | PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridgeExtra.uni | 20 | ||||
| -rw-r--r-- | PcAtChipsetPkg/PciHostBridgeDxe/PciRootBridgeIo.c | 2626 | ||||
| -rw-r--r-- | PcAtChipsetPkg/PciHostBridgeDxe/X64/IoFifo.S | 122 | ||||
| -rw-r--r-- | PcAtChipsetPkg/PciHostBridgeDxe/X64/IoFifo.asm | 126 |
12 files changed, 0 insertions, 5480 deletions
diff --git a/PcAtChipsetPkg/PcAtChipsetPkg.dsc b/PcAtChipsetPkg/PcAtChipsetPkg.dsc index 71b3a6e107..0321bb2bbc 100644 --- a/PcAtChipsetPkg/PcAtChipsetPkg.dsc +++ b/PcAtChipsetPkg/PcAtChipsetPkg.dsc @@ -59,4 +59,3 @@ PcAtChipsetPkg/Library/AcpiTimerLib/BaseAcpiTimerLib.inf
PcAtChipsetPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.inf
PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf
- PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridgeDxe.inf
diff --git a/PcAtChipsetPkg/PciHostBridgeDxe/Ia32/IoFifo.S b/PcAtChipsetPkg/PciHostBridgeDxe/Ia32/IoFifo.S deleted file mode 100644 index 03a014de0c..0000000000 --- a/PcAtChipsetPkg/PciHostBridgeDxe/Ia32/IoFifo.S +++ /dev/null @@ -1,134 +0,0 @@ -#------------------------------------------------------------------------------
-#
-# Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
-#
-# This program and the accompanying materials are licensed and made available
-# under the terms and conditions of the BSD License which accompanies this
-# distribution. The full text of the license may be found at
-# 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.
-#
-#------------------------------------------------------------------------------
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# IoReadFifo8 (
-# IN UINTN Port,
-# IN UINTN Count,
-# IN VOID *Buffer
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(IoReadFifo8)
-ASM_PFX(IoReadFifo8):
- push %edi
- cld
- movw 8(%esp), %dx
- mov 12(%esp), %ecx
- mov 16(%esp), %edi
-rep insb
- pop %edi
- ret
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# IoReadFifo16 (
-# IN UINTN Port,
-# IN UINTN Count,
-# IN VOID *Buffer
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(IoReadFifo16)
-ASM_PFX(IoReadFifo16):
- push %edi
- cld
- movw 8(%esp), %dx
- mov 12(%esp), %ecx
- mov 16(%esp), %edi
-rep insw
- pop %edi
- ret
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# IoReadFifo32 (
-# IN UINTN Port,
-# IN UINTN Count,
-# IN VOID *Buffer
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(IoReadFifo32)
-ASM_PFX(IoReadFifo32):
- push %edi
- cld
- movw 8(%esp), %dx
- mov 12(%esp), %ecx
- mov 16(%esp), %edi
-rep insl
- pop %edi
- ret
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# IoWriteFifo8 (
-# IN UINTN Port,
-# IN UINTN Count,
-# IN VOID *Buffer
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(IoWriteFifo8)
-ASM_PFX(IoWriteFifo8):
- push %esi
- cld
- movw 8(%esp), %dx
- mov 12(%esp), %ecx
- mov 16(%esp), %esi
-rep outsb
- pop %esi
- ret
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# IoWriteFifo16 (
-# IN UINTN Port,
-# IN UINTN Count,
-# IN VOID *Buffer
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(IoWriteFifo16)
-ASM_PFX(IoWriteFifo16):
- push %esi
- cld
- movw 8(%esp), %dx
- mov 12(%esp), %ecx
- mov 16(%esp), %esi
-rep outsw
- pop %esi
- ret
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# IoWriteFifo32 (
-# IN UINTN Port,
-# IN UINTN Count,
-# IN VOID *Buffer
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(IoWriteFifo32)
-ASM_PFX(IoWriteFifo32):
- push %esi
- cld
- movw 8(%esp), %dx
- mov 12(%esp), %ecx
- mov 16(%esp), %esi
-rep outsl
- pop %esi
- ret
-
diff --git a/PcAtChipsetPkg/PciHostBridgeDxe/Ia32/IoFifo.asm b/PcAtChipsetPkg/PciHostBridgeDxe/Ia32/IoFifo.asm deleted file mode 100644 index b1cc25eeb6..0000000000 --- a/PcAtChipsetPkg/PciHostBridgeDxe/Ia32/IoFifo.asm +++ /dev/null @@ -1,140 +0,0 @@ -;------------------------------------------------------------------------------
-;
-; Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
-;
-; This program and the accompanying materials are licensed and made available
-; under the terms and conditions of the BSD License which accompanies this
-; distribution. The full text of the license may be found at
-; 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.
-;
-;------------------------------------------------------------------------------
-
- .586P
- .model flat,C
- .code
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; IoReadFifo8 (
-; IN UINTN Port,
-; IN UINTN Size,
-; IN VOID *Buffer
-; );
-;------------------------------------------------------------------------------
-IoReadFifo8 PROC
- push edi
- cld
- mov dx, [esp + 8]
- mov ecx, [esp + 12]
- mov edi, [esp + 16]
-rep insb
- pop edi
- ret
-IoReadFifo8 ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; IoReadFifo16 (
-; IN UINTN Port,
-; IN UINTN Size,
-; IN VOID *Buffer
-; );
-;------------------------------------------------------------------------------
-IoReadFifo16 PROC
- push edi
- cld
- mov dx, [esp + 8]
- mov ecx, [esp + 12]
- mov edi, [esp + 16]
-rep insw
- pop edi
- ret
-IoReadFifo16 ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; IoReadFifo32 (
-; IN UINTN Port,
-; IN UINTN Size,
-; IN VOID *Buffer
-; );
-;------------------------------------------------------------------------------
-IoReadFifo32 PROC
- push edi
- cld
- mov dx, [esp + 8]
- mov ecx, [esp + 12]
- mov edi, [esp + 16]
-rep insd
- pop edi
- ret
-IoReadFifo32 ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; IoWriteFifo8 (
-; IN UINTN Port,
-; IN UINTN Size,
-; IN VOID *Buffer
-; );
-;------------------------------------------------------------------------------
-IoWriteFifo8 PROC
- push esi
- cld
- mov dx, [esp + 8]
- mov ecx, [esp + 12]
- mov esi, [esp + 16]
-rep outsb
- pop esi
- ret
-IoWriteFifo8 ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; IoWriteFifo16 (
-; IN UINTN Port,
-; IN UINTN Size,
-; IN VOID *Buffer
-; );
-;------------------------------------------------------------------------------
-IoWriteFifo16 PROC
- push esi
- cld
- mov dx, [esp + 8]
- mov ecx, [esp + 12]
- mov esi, [esp + 16]
-rep outsw
- pop esi
- ret
-IoWriteFifo16 ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; IoWriteFifo32 (
-; IN UINTN Port,
-; IN UINTN Size,
-; IN VOID *Buffer
-; );
-;------------------------------------------------------------------------------
-IoWriteFifo32 PROC
- push esi
- cld
- mov dx, [esp + 8]
- mov ecx, [esp + 12]
- mov esi, [esp + 16]
-rep outsd
- pop esi
- ret
-IoWriteFifo32 ENDP
-
- END
-
diff --git a/PcAtChipsetPkg/PciHostBridgeDxe/IoFifo.h b/PcAtChipsetPkg/PciHostBridgeDxe/IoFifo.h deleted file mode 100644 index 9978f8bfc3..0000000000 --- a/PcAtChipsetPkg/PciHostBridgeDxe/IoFifo.h +++ /dev/null @@ -1,176 +0,0 @@ -/** @file
- I/O FIFO routines
-
- Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
-
- This program and the accompanying materials are licensed and made available
- under the terms and conditions of the BSD License which accompanies this
- distribution. The full text of the license may be found at
- 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 _IO_FIFO_H_INCLUDED_
-#define _IO_FIFO_H_INCLUDED_
-
-/**
- Reads an 8-bit I/O port fifo into a block of memory.
-
- Reads the 8-bit I/O fifo port specified by Port.
-
- The port is read Count times, and the read data is
- stored in the provided Buffer.
-
- This function must guarantee that all I/O read and write operations are
- serialized.
-
- If 8-bit I/O port operations are not supported, then ASSERT().
-
- @param Port The I/O port to read.
- @param Count The number of times to read I/O port.
- @param Buffer The buffer to store the read data into.
-
-**/
-VOID
-EFIAPI
-IoReadFifo8 (
- IN UINTN Port,
- IN UINTN Count,
- OUT VOID *Buffer
- );
-
-/**
- Reads a 16-bit I/O port fifo into a block of memory.
-
- Reads the 16-bit I/O fifo port specified by Port.
-
- The port is read Count times, and the read data is
- stored in the provided Buffer.
-
- This function must guarantee that all I/O read and write operations are
- serialized.
-
- If 16-bit I/O port operations are not supported, then ASSERT().
-
- @param Port The I/O port to read.
- @param Count The number of times to read I/O port.
- @param Buffer The buffer to store the read data into.
-
-**/
-VOID
-EFIAPI
-IoReadFifo16 (
- IN UINTN Port,
- IN UINTN Count,
- OUT VOID *Buffer
- );
-
-/**
- Reads a 32-bit I/O port fifo into a block of memory.
-
- Reads the 32-bit I/O fifo port specified by Port.
-
- The port is read Count times, and the read data is
- stored in the provided Buffer.
-
- This function must guarantee that all I/O read and write operations are
- serialized.
-
- If 32-bit I/O port operations are not supported, then ASSERT().
-
- @param Port The I/O port to read.
- @param Count The number of times to read I/O port.
- @param Buffer The buffer to store the read data into.
-
-**/
-VOID
-EFIAPI
-IoReadFifo32 (
- IN UINTN Port,
- IN UINTN Count,
- OUT VOID *Buffer
- );
-
-/**
- Writes a block of memory into an 8-bit I/O port fifo.
-
- Writes the 8-bit I/O fifo port specified by Port.
-
- The port is written Count times, and the write data is
- retrieved from the provided Buffer.
-
- This function must guarantee that all I/O write and write operations are
- serialized.
-
- If 8-bit I/O port operations are not supported, then ASSERT().
-
- @param Port The I/O port to write.
- @param Count The number of times to write I/O port.
- @param Buffer The buffer to store the write data into.
-
-**/
-VOID
-EFIAPI
-IoWriteFifo8 (
- IN UINTN Port,
- IN UINTN Count,
- OUT VOID *Buffer
- );
-
-/**
- Writes a block of memory into a 16-bit I/O port fifo.
-
- Writes the 16-bit I/O fifo port specified by Port.
-
- The port is written Count times, and the write data is
- retrieved from the provided Buffer.
-
- This function must guarantee that all I/O write and write operations are
- serialized.
-
- If 16-bit I/O port operations are not supported, then ASSERT().
-
- @param Port The I/O port to write.
- @param Count The number of times to write I/O port.
- @param Buffer The buffer to store the write data into.
-
-**/
-VOID
-EFIAPI
-IoWriteFifo16 (
- IN UINTN Port,
- IN UINTN Count,
- OUT VOID *Buffer
- );
-
-/**
- Writes a block of memory into a 32-bit I/O port fifo.
-
- Writes the 32-bit I/O fifo port specified by Port.
-
- The port is written Count times, and the write data is
- retrieved from the provided Buffer.
-
- This function must guarantee that all I/O write and write operations are
- serialized.
-
- If 32-bit I/O port operations are not supported, then ASSERT().
-
- @param Port The I/O port to write.
- @param Count The number of times to write I/O port.
- @param Buffer The buffer to store the write data into.
-
-**/
-VOID
-EFIAPI
-IoWriteFifo32 (
- IN UINTN Port,
- IN UINTN Count,
- OUT VOID *Buffer
- );
-
-#endif
-
diff --git a/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.c b/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.c deleted file mode 100644 index aa02641d8a..0000000000 --- a/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.c +++ /dev/null @@ -1,1396 +0,0 @@ -/** @file
- Provides the basic interfaces to abstract a PCI Host Bridge Resource
- Allocation
-
- Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
-
- This program and the accompanying materials are licensed and made available
- under the terms and conditions of the BSD License which accompanies this
- distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "PciHostBridge.h"
-
-//
-// Hard code: Root Bridge Number within the host bridge
-// Root Bridge's attribute
-// Root Bridge's device path
-// Root Bridge's resource aperture
-//
-UINTN RootBridgeNumber[1] = { 1 };
-
-UINT64 RootBridgeAttribute[1][1] = {
- { EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM }
-};
-
-EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mEfiPciRootBridgeDevicePath[1][1] = {
- {
- {
- {
- {
- ACPI_DEVICE_PATH,
- ACPI_DP,
- {
- (UINT8) (sizeof(ACPI_HID_DEVICE_PATH)),
- (UINT8) ((sizeof(ACPI_HID_DEVICE_PATH)) >> 8)
- }
- },
- EISA_PNP_ID(0x0A03),
- 0
- },
-
- {
- END_DEVICE_PATH_TYPE,
- END_ENTIRE_DEVICE_PATH_SUBTYPE,
- {
- END_DEVICE_PATH_LENGTH,
- 0
- }
- }
- }
- }
-};
-
-PCI_ROOT_BRIDGE_RESOURCE_APERTURE mResAperture[1][1] = {
- {{0, 0xff, 0x80000000, 0xffffffff, 0, 0xffff}}
-};
-
-EFI_HANDLE mDriverImageHandle;
-
-PCI_HOST_BRIDGE_INSTANCE mPciHostBridgeInstanceTemplate = {
- PCI_HOST_BRIDGE_SIGNATURE, // Signature
- NULL, // HostBridgeHandle
- 0, // RootBridgeNumber
- {NULL, NULL}, // Head
- FALSE, // ResourceSubiteed
- TRUE, // CanRestarted
- {
- NotifyPhase,
- GetNextRootBridge,
- GetAttributes,
- StartBusEnumeration,
- SetBusNumbers,
- SubmitResources,
- GetProposedResources,
- PreprocessController
- }
-};
-
-//
-// Implementation
-//
-
-/**
- Entry point of this driver
-
- @param ImageHandle Handle of driver image
- @param SystemTable Point to EFI_SYSTEM_TABLE
-
- @retval EFI_OUT_OF_RESOURCES Can not allocate memory resource
- @retval EFI_DEVICE_ERROR Can not install the protocol instance
- @retval EFI_SUCCESS Success to initialize the Pci host bridge.
-**/
-EFI_STATUS
-EFIAPI
-InitializePciHostBridge (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
- UINTN Loop1;
- UINTN Loop2;
- PCI_HOST_BRIDGE_INSTANCE *HostBridge;
- PCI_ROOT_BRIDGE_INSTANCE *PrivateData;
-
- mDriverImageHandle = ImageHandle;
-
- //
- // Create Host Bridge Device Handle
- //
- for (Loop1 = 0; Loop1 < HOST_BRIDGE_NUMBER; Loop1++) {
- HostBridge = AllocateCopyPool (sizeof(PCI_HOST_BRIDGE_INSTANCE),
- &mPciHostBridgeInstanceTemplate);
- if (HostBridge == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- HostBridge->RootBridgeNumber = RootBridgeNumber[Loop1];
- InitializeListHead (&HostBridge->Head);
-
- Status = gBS->InstallMultipleProtocolInterfaces (
- &HostBridge->HostBridgeHandle,
- &gEfiPciHostBridgeResourceAllocationProtocolGuid,
- &HostBridge->ResAlloc,
- NULL
- );
- if (EFI_ERROR (Status)) {
- FreePool (HostBridge);
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Create Root Bridge Device Handle in this Host Bridge
- //
-
- for (Loop2 = 0; Loop2 < HostBridge->RootBridgeNumber; Loop2++) {
- PrivateData = AllocateZeroPool (sizeof(PCI_ROOT_BRIDGE_INSTANCE));
- if (PrivateData == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- PrivateData->Signature = PCI_ROOT_BRIDGE_SIGNATURE;
- PrivateData->DevicePath =
- (EFI_DEVICE_PATH_PROTOCOL *)&mEfiPciRootBridgeDevicePath[Loop1][Loop2];
-
- RootBridgeConstructor (
- &PrivateData->Io,
- HostBridge->HostBridgeHandle,
- RootBridgeAttribute[Loop1][Loop2],
- &mResAperture[Loop1][Loop2]
- );
-
- Status = gBS->InstallMultipleProtocolInterfaces(
- &PrivateData->Handle,
- &gEfiDevicePathProtocolGuid,
- PrivateData->DevicePath,
- &gEfiPciRootBridgeIoProtocolGuid,
- &PrivateData->Io,
- NULL
- );
- if (EFI_ERROR (Status)) {
- FreePool(PrivateData);
- return EFI_DEVICE_ERROR;
- }
-
- InsertTailList (&HostBridge->Head, &PrivateData->Link);
- }
- }
-
- return EFI_SUCCESS;
-}
-
-
-/**
- These are the notifications from the PCI bus driver that it is about to enter
- a certain phase of the PCI enumeration process.
-
- This member function can be used to notify the host bridge driver to perform
- specific actions, including any chipset-specific initialization, so that the
- chipset is ready to enter the next phase. Eight notification points are
- defined at this time. See belows:
-
- EfiPciHostBridgeBeginEnumeration Resets the host bridge PCI apertures
- and internal data structures. The PCI
- enumerator should issue this
- notification before starting a fresh
- enumeration process. Enumeration
- cannot be restarted after sending any
- other notification such as
- EfiPciHostBridgeBeginBusAllocation.
-
- EfiPciHostBridgeBeginBusAllocation The bus allocation phase is about to
- begin. No specific action is required
- here. This notification can be used to
- perform any chipset-specific
- programming.
-
- EfiPciHostBridgeEndBusAllocation The bus allocation and bus programming
- phase is complete. No specific action
- is required here. This notification
- can be used to perform any
- chipset-specific programming.
-
- EfiPciHostBridgeBeginResourceAllocation
- The resource allocation phase is about
- to begin. No specific action is
- required here. This notification can
- be used to perform any
- chipset-specific programming.
-
- EfiPciHostBridgeAllocateResources Allocates resources per previously
- submitted requests for all the PCI
- root bridges. These resource settings
- are returned on the next call to
- GetProposedResources(). Before calling
- NotifyPhase() with a Phase of
- EfiPciHostBridgeAllocateResource, the
- PCI bus enumerator is responsible for
- gathering I/O and memory requests for
- all the PCI root bridges and
- submitting these requests using
- SubmitResources(). This function pads
- the resource amount to suit the root
- bridge hardware, takes care of
- dependencies between the PCI root
- bridges, and calls the Global
- Coherency Domain (GCD) with the
- allocation request. In the case of
- padding, the allocated range could be
- bigger than what was requested.
-
- EfiPciHostBridgeSetResources Programs the host bridge hardware to
- decode previously allocated resources
- (proposed resources) for all the PCI
- root bridges. After the hardware is
- programmed, reassigning resources will
- not be supported. The bus settings are
- not affected.
-
- EfiPciHostBridgeFreeResources Deallocates resources that were
- previously allocated for all the PCI
- root bridges and resets the I/O and
- memory apertures to their initial
- state. The bus settings are not
- affected. If the request to allocate
- resources fails, the PCI enumerator
- can use this notification to
- deallocate previous resources, adjust
- the requests, and retry allocation.
-
- EfiPciHostBridgeEndResourceAllocation The resource allocation phase is
- completed. No specific action is
- required here. This notification can
- be used to perform any chipsetspecific
- programming.
-
- @param[in] This The instance pointer of
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
-
- @param[in] Phase The phase during enumeration
-
- @retval EFI_NOT_READY This phase cannot be entered at this time. For
- example, this error is valid for a Phase of
- EfiPciHostBridgeAllocateResources if
- SubmitResources() has not been called for one
- or more PCI root bridges before this call
-
- @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.
- This error is valid for a Phase of
- EfiPciHostBridgeSetResources.
-
- @retval EFI_INVALID_PARAMETER Invalid phase parameter
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources. This error is valid for a
- Phase of EfiPciHostBridgeAllocateResources if
- the previously submitted resource requests
- cannot be fulfilled or were only partially
- fulfilled.
-
- @retval EFI_SUCCESS The notification was accepted without any
- errors.
-**/
-EFI_STATUS
-EFIAPI
-NotifyPhase(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE Phase
- )
-{
- PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
- PCI_RESOURCE_TYPE Index;
- LIST_ENTRY *List;
- EFI_PHYSICAL_ADDRESS BaseAddress;
- UINT64 AddrLen;
- UINTN BitsOfAlignment;
- EFI_STATUS Status;
- EFI_STATUS ReturnStatus;
-
- HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);
-
- switch (Phase) {
-
- case EfiPciHostBridgeBeginEnumeration:
- if (HostBridgeInstance->CanRestarted) {
- //
- // Reset the Each Root Bridge
- //
- List = HostBridgeInstance->Head.ForwardLink;
-
- while (List != &HostBridgeInstance->Head) {
- RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
- for (Index = TypeIo; Index < TypeMax; Index++) {
- RootBridgeInstance->ResAllocNode[Index].Type = Index;
- RootBridgeInstance->ResAllocNode[Index].Base = 0;
- RootBridgeInstance->ResAllocNode[Index].Length = 0;
- RootBridgeInstance->ResAllocNode[Index].Status = ResNone;
- }
-
- List = List->ForwardLink;
- }
-
- HostBridgeInstance->ResourceSubmited = FALSE;
- HostBridgeInstance->CanRestarted = TRUE;
- } else {
- //
- // Can not restart
- //
- return EFI_NOT_READY;
- }
- break;
-
- case EfiPciHostBridgeEndEnumeration:
- break;
-
- case EfiPciHostBridgeBeginBusAllocation:
- //
- // No specific action is required here, can perform any chipset specific
- // programing
- //
- HostBridgeInstance->CanRestarted = FALSE;
- break;
-
- case EfiPciHostBridgeEndBusAllocation:
- //
- // No specific action is required here, can perform any chipset specific
- // programing
- //
- //HostBridgeInstance->CanRestarted = FALSE;
- break;
-
- case EfiPciHostBridgeBeginResourceAllocation:
- //
- // No specific action is required here, can perform any chipset specific
- // programing
- //
- //HostBridgeInstance->CanRestarted = FALSE;
- break;
-
- case EfiPciHostBridgeAllocateResources:
- ReturnStatus = EFI_SUCCESS;
- if (HostBridgeInstance->ResourceSubmited) {
- //
- // Take care of the resource dependencies between the root bridges
- //
- List = HostBridgeInstance->Head.ForwardLink;
-
- while (List != &HostBridgeInstance->Head) {
- RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
- for (Index = TypeIo; Index < TypeBus; Index++) {
- if (RootBridgeInstance->ResAllocNode[Index].Status != ResNone) {
-
- AddrLen = RootBridgeInstance->ResAllocNode[Index].Length;
-
- //
- // Get the number of '1' in Alignment.
- //
- BitsOfAlignment =
- (UINTN)(HighBitSet64 (
- RootBridgeInstance->ResAllocNode[Index].Alignment
- ) + 1);
-
- switch (Index) {
-
- case TypeIo:
- //
- // It is impossible for this chipset to align 0xFFFF for IO16
- // So clear it
- //
- if (BitsOfAlignment >= 16) {
- BitsOfAlignment = 0;
- }
-
- Status = gDS->AllocateIoSpace (
- EfiGcdAllocateAnySearchBottomUp,
- EfiGcdIoTypeIo,
- BitsOfAlignment,
- AddrLen,
- &BaseAddress,
- mDriverImageHandle,
- NULL
- );
-
- if (!EFI_ERROR (Status)) {
- RootBridgeInstance->ResAllocNode[Index].Base =
- (UINTN)BaseAddress;
- RootBridgeInstance->ResAllocNode[Index].Status =
- ResAllocated;
- } else {
- ReturnStatus = Status;
- if (Status != EFI_OUT_OF_RESOURCES) {
- RootBridgeInstance->ResAllocNode[Index].Length = 0;
- }
- }
-
- break;
-
-
- case TypeMem32:
- //
- // It is impossible for this chipset to align 0xFFFFFFFF for
- // Mem32
- // So clear it
- //
-
- if (BitsOfAlignment >= 32) {
- BitsOfAlignment = 0;
- }
-
- Status = gDS->AllocateMemorySpace (
- EfiGcdAllocateAnySearchBottomUp,
- EfiGcdMemoryTypeMemoryMappedIo,
- BitsOfAlignment,
- AddrLen,
- &BaseAddress,
- mDriverImageHandle,
- NULL
- );
-
- if (!EFI_ERROR (Status)) {
- // We were able to allocate the PCI memory
- RootBridgeInstance->ResAllocNode[Index].Base =
- (UINTN)BaseAddress;
- RootBridgeInstance->ResAllocNode[Index].Status =
- ResAllocated;
-
- } else {
- // Not able to allocate enough PCI memory
- ReturnStatus = Status;
-
- if (Status != EFI_OUT_OF_RESOURCES) {
- RootBridgeInstance->ResAllocNode[Index].Length = 0;
- }
- ASSERT (FALSE);
- }
- break;
-
- case TypePMem32:
- case TypeMem64:
- case TypePMem64:
- ReturnStatus = EFI_ABORTED;
- break;
- default:
- ASSERT (FALSE);
- break;
- }; //end switch
- }
- }
-
- List = List->ForwardLink;
- }
-
- return ReturnStatus;
-
- } else {
- return EFI_NOT_READY;
- }
- break;
-
- case EfiPciHostBridgeSetResources:
- break;
-
- case EfiPciHostBridgeFreeResources:
- ReturnStatus = EFI_SUCCESS;
- List = HostBridgeInstance->Head.ForwardLink;
- while (List != &HostBridgeInstance->Head) {
- RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
- for (Index = TypeIo; Index < TypeBus; Index++) {
- if (RootBridgeInstance->ResAllocNode[Index].Status == ResAllocated) {
- AddrLen = RootBridgeInstance->ResAllocNode[Index].Length;
- BaseAddress = RootBridgeInstance->ResAllocNode[Index].Base;
- switch (Index) {
-
- case TypeIo:
- Status = gDS->FreeIoSpace (BaseAddress, AddrLen);
- if (EFI_ERROR (Status)) {
- ReturnStatus = Status;
- }
- break;
-
- case TypeMem32:
- Status = gDS->FreeMemorySpace (BaseAddress, AddrLen);
- if (EFI_ERROR (Status)) {
- ReturnStatus = Status;
- }
- break;
-
- case TypePMem32:
- break;
-
- case TypeMem64:
- break;
-
- case TypePMem64:
- break;
-
- default:
- ASSERT (FALSE);
- break;
-
- }; //end switch
- RootBridgeInstance->ResAllocNode[Index].Type = Index;
- RootBridgeInstance->ResAllocNode[Index].Base = 0;
- RootBridgeInstance->ResAllocNode[Index].Length = 0;
- RootBridgeInstance->ResAllocNode[Index].Status = ResNone;
- }
- }
-
- List = List->ForwardLink;
- }
-
- HostBridgeInstance->ResourceSubmited = FALSE;
- HostBridgeInstance->CanRestarted = TRUE;
- return ReturnStatus;
-
- case EfiPciHostBridgeEndResourceAllocation:
- HostBridgeInstance->CanRestarted = FALSE;
- break;
-
- default:
- return EFI_INVALID_PARAMETER;
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Return the device handle of the next PCI root bridge that is associated with
- this Host Bridge.
-
- This function is called multiple times to retrieve the device handles of all
- the PCI root bridges that are associated with this PCI host bridge. Each PCI
- host bridge is associated with one or more PCI root bridges. On each call,
- the handle that was returned by the previous call is passed into the
- interface, and on output the interface returns the device handle of the next
- PCI root bridge. The caller can use the handle to obtain the instance of the
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL for that root bridge. When there are no more
- PCI root bridges to report, the interface returns EFI_NOT_FOUND. A PCI
- enumerator must enumerate the PCI root bridges in the order that they are
- returned by this function.
-
- For D945 implementation, there is only one root bridge in PCI host bridge.
-
- @param[in] This The instance pointer of
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
-
- @param[in, out] RootBridgeHandle Returns the device handle of the next PCI
- root bridge.
-
- @retval EFI_SUCCESS If parameter RootBridgeHandle = NULL, then
- return the first Rootbridge handle of the
- specific Host bridge and return EFI_SUCCESS.
-
- @retval EFI_NOT_FOUND Can not find the any more root bridge in
- specific host bridge.
-
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is not an EFI_HANDLE that was
- returned on a previous call to
- GetNextRootBridge().
-**/
-EFI_STATUS
-EFIAPI
-GetNextRootBridge(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN OUT EFI_HANDLE *RootBridgeHandle
- )
-{
- BOOLEAN NoRootBridge;
- LIST_ENTRY *List;
- PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
-
- NoRootBridge = TRUE;
- HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);
- List = HostBridgeInstance->Head.ForwardLink;
-
-
- while (List != &HostBridgeInstance->Head) {
- NoRootBridge = FALSE;
- RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
- if (*RootBridgeHandle == NULL) {
- //
- // Return the first Root Bridge Handle of the Host Bridge
- //
- *RootBridgeHandle = RootBridgeInstance->Handle;
- return EFI_SUCCESS;
- } else {
- if (*RootBridgeHandle == RootBridgeInstance->Handle) {
- //
- // Get next if have
- //
- List = List->ForwardLink;
- if (List!=&HostBridgeInstance->Head) {
- RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
- *RootBridgeHandle = RootBridgeInstance->Handle;
- return EFI_SUCCESS;
- } else {
- return EFI_NOT_FOUND;
- }
- }
- }
-
- List = List->ForwardLink;
- } //end while
-
- if (NoRootBridge) {
- return EFI_NOT_FOUND;
- } else {
- return EFI_INVALID_PARAMETER;
- }
-}
-
-/**
- Returns the allocation attributes of a PCI root bridge.
-
- The function returns the allocation attributes of a specific PCI root bridge.
- The attributes can vary from one PCI root bridge to another. These attributes
- are different from the decode-related attributes that are returned by the
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.GetAttributes() member function. The
- RootBridgeHandle parameter is used to specify the instance of the PCI root
- bridge. The device handles of all the root bridges that are associated with
- this host bridge must be obtained by calling GetNextRootBridge(). The
- attributes are static in the sense that they do not change during or after
- the enumeration process. The hardware may provide mechanisms to change the
- attributes on the fly, but such changes must be completed before
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL is installed. The permitted
- values of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ATTRIBUTES are defined in
- "Related Definitions" below. The caller uses these attributes to combine
- multiple resource requests.
-
- For example, if the flag EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM is set, the PCI
- bus enumerator needs to include requests for the prefetchable memory in the
- nonprefetchable memory pool and not request any prefetchable memory.
-
- Attribute Description
- ------------------------------------ ---------------------------------------
- EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM If this bit is set, then the PCI root
- bridge does not support separate
- windows for nonprefetchable and
- prefetchable memory. A PCI bus driver
- needs to include requests for
- prefetchable memory in the
- nonprefetchable memory pool.
-
- EFI_PCI_HOST_BRIDGE_MEM64_DECODE If this bit is set, then the PCI root
- bridge supports 64-bit memory windows.
- If this bit is not set, the PCI bus
- driver needs to include requests for a
- 64-bit memory address in the
- corresponding 32-bit memory pool.
-
- @param[in] This The instance pointer of
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
-
- @param[in] RootBridgeHandle The device handle of the PCI root bridge in
- which the caller is interested. Type
- EFI_HANDLE is defined in
- InstallProtocolInterface() in the UEFI 2.0
- Specification.
-
- @param[out] Attributes The pointer to attribte of root bridge, it is
- output parameter
-
- @retval EFI_INVALID_PARAMETER Attribute pointer is NULL
-
- @retval EFI_INVALID_PARAMETER RootBridgehandle is invalid.
-
- @retval EFI_SUCCESS Success to get attribute of interested root
- bridge.
-**/
-EFI_STATUS
-EFIAPI
-GetAttributes(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_HANDLE RootBridgeHandle,
- OUT UINT64 *Attributes
- )
-{
- LIST_ENTRY *List;
- PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
-
- if (Attributes == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);
- List = HostBridgeInstance->Head.ForwardLink;
-
- while (List != &HostBridgeInstance->Head) {
- RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
- if (RootBridgeHandle == RootBridgeInstance->Handle) {
- *Attributes = RootBridgeInstance->RootBridgeAttrib;
- return EFI_SUCCESS;
- }
- List = List->ForwardLink;
- }
-
- //
- // RootBridgeHandle is not an EFI_HANDLE
- // that was returned on a previous call to GetNextRootBridge()
- //
- return EFI_INVALID_PARAMETER;
-}
-
-/**
- Sets up the specified PCI root bridge for the bus enumeration process.
-
- This member function sets up the root bridge for bus enumeration and returns
- the PCI bus range over which the search should be performed in ACPI 2.0
- resource descriptor format.
-
- @param[in] This The
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
- instance.
-
- @param[in] RootBridgeHandle The PCI Root Bridge to be set up.
-
- @param[out] Configuration Pointer to the pointer to the PCI bus resource
- descriptor.
-
- @retval EFI_INVALID_PARAMETER Invalid Root bridge's handle
-
- @retval EFI_OUT_OF_RESOURCES Fail to allocate ACPI resource descriptor tag.
-
- @retval EFI_SUCCESS Sucess to allocate ACPI resource descriptor.
-**/
-EFI_STATUS
-EFIAPI
-StartBusEnumeration(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_HANDLE RootBridgeHandle,
- OUT VOID **Configuration
- )
-{
- LIST_ENTRY *List;
- PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
- VOID *Buffer;
- UINT8 *Temp;
- UINT64 BusStart;
- UINT64 BusEnd;
-
- HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);
- List = HostBridgeInstance->Head.ForwardLink;
-
- while (List != &HostBridgeInstance->Head) {
- RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
- if (RootBridgeHandle == RootBridgeInstance->Handle) {
- //
- // Set up the Root Bridge for Bus Enumeration
- //
- BusStart = RootBridgeInstance->BusBase;
- BusEnd = RootBridgeInstance->BusLimit;
- //
- // Program the Hardware(if needed) if error return EFI_DEVICE_ERROR
- //
-
- Buffer = AllocatePool (
- sizeof(EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) +
- sizeof(EFI_ACPI_END_TAG_DESCRIPTOR)
- );
- if (Buffer == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- Temp = (UINT8 *)Buffer;
-
- ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->Desc = 0x8A;
- ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->Len = 0x2B;
- ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->ResType = 2;
- ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->GenFlag = 0;
- ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->SpecificFlag = 0;
- ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->AddrSpaceGranularity = 0;
- ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->AddrRangeMin = BusStart;
- ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->AddrRangeMax = 0;
- ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->AddrTranslationOffset = 0;
- ((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Temp)->AddrLen =
- BusEnd - BusStart + 1;
-
- Temp = Temp + sizeof(EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR);
- ((EFI_ACPI_END_TAG_DESCRIPTOR *)Temp)->Desc = 0x79;
- ((EFI_ACPI_END_TAG_DESCRIPTOR *)Temp)->Checksum = 0x0;
-
- *Configuration = Buffer;
- return EFI_SUCCESS;
- }
- List = List->ForwardLink;
- }
-
- return EFI_INVALID_PARAMETER;
-}
-
-/**
- Programs the PCI root bridge hardware so that it decodes the specified PCI
- bus range.
-
- This member function programs the specified PCI root bridge to decode the bus
- range that is specified by the input parameter Configuration.
- The bus range information is specified in terms of the ACPI 2.0 resource
- descriptor format.
-
- @param[in] This The
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
- instance
-
- @param[in] RootBridgeHandle The PCI Root Bridge whose bus range is to be
- programmed
-
- @param[in] Configuration The pointer to the PCI bus resource descriptor
-
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge
- handle.
-
- @retval EFI_INVALID_PARAMETER Configuration is NULL.
-
- @retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI
- 2.0 resource descriptor.
-
- @retval EFI_INVALID_PARAMETER Configuration does not include a valid ACPI
- 2.0 bus resource descriptor.
-
- @retval EFI_INVALID_PARAMETER Configuration includes valid ACPI 2.0 resource
- descriptors other than bus descriptors.
-
- @retval EFI_INVALID_PARAMETER Configuration contains one or more invalid
- ACPI resource descriptors.
-
- @retval EFI_INVALID_PARAMETER "Address Range Minimum" is invalid for this
- root bridge.
-
- @retval EFI_INVALID_PARAMETER "Address Range Length" is invalid for this
- root bridge.
-
- @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.
-
- @retval EFI_SUCCESS The bus range for the PCI root bridge was
- programmed.
-**/
-EFI_STATUS
-EFIAPI
-SetBusNumbers(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_HANDLE RootBridgeHandle,
- IN VOID *Configuration
- )
-{
- LIST_ENTRY *List;
- PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
- UINT8 *Ptr;
- UINTN BusStart;
- UINTN BusEnd;
- UINTN BusLen;
-
- if (Configuration == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- Ptr = Configuration;
-
- //
- // Check the Configuration is valid
- //
- if(*Ptr != ACPI_ADDRESS_SPACE_DESCRIPTOR) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (((EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Ptr)->ResType != 2) {
- return EFI_INVALID_PARAMETER;
- }
-
- Ptr += sizeof(EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR);
- if (*Ptr != ACPI_END_TAG_DESCRIPTOR) {
- return EFI_INVALID_PARAMETER;
- }
-
- HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);
- List = HostBridgeInstance->Head.ForwardLink;
-
- Ptr = Configuration;
-
- while (List != &HostBridgeInstance->Head) {
- RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
- if (RootBridgeHandle == RootBridgeInstance->Handle) {
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Desc;
-
- Desc = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)Ptr;
- BusStart = (UINTN)Desc->AddrRangeMin;
- BusLen = (UINTN)Desc->AddrLen;
- BusEnd = BusStart + BusLen - 1;
-
- if (BusStart > BusEnd) {
- return EFI_INVALID_PARAMETER;
- }
-
- if ((BusStart < RootBridgeInstance->BusBase) ||
- (BusEnd > RootBridgeInstance->BusLimit)) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Update the Bus Range
- //
- RootBridgeInstance->ResAllocNode[TypeBus].Base = BusStart;
- RootBridgeInstance->ResAllocNode[TypeBus].Length = BusLen;
- RootBridgeInstance->ResAllocNode[TypeBus].Status = ResAllocated;
-
- //
- // Program the Root Bridge Hardware
- //
-
- return EFI_SUCCESS;
- }
-
- List = List->ForwardLink;
- }
-
- return EFI_INVALID_PARAMETER;
-}
-
-
-/**
- Submits the I/O and memory resource requirements for the specified PCI root
- bridge.
-
- This function is used to submit all the I/O and memory resources that are
- required by the specified PCI root bridge. The input parameter Configuration
- is used to specify the following:
- - The various types of resources that are required
- - The associated lengths in terms of ACPI 2.0 resource descriptor format
-
- @param[in] This Pointer to the
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
- instance.
-
- @param[in] RootBridgeHandle The PCI root bridge whose I/O and memory
- resource requirements are being submitted.
-
- @param[in] Configuration The pointer to the PCI I/O and PCI memory
- resource descriptor.
-
- @retval EFI_SUCCESS The I/O and memory resource requests for a PCI
- root bridge were accepted.
-
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge
- handle.
-
- @retval EFI_INVALID_PARAMETER Configuration is NULL.
-
- @retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI
- 2.0 resource descriptor.
-
- @retval EFI_INVALID_PARAMETER Configuration includes requests for one or
- more resource types that are not supported by
- this PCI root bridge. This error will happen
- if the caller did not combine resources
- according to Attributes that were returned by
- GetAllocAttributes().
-
- @retval EFI_INVALID_PARAMETER Address Range Maximum" is invalid.
-
- @retval EFI_INVALID_PARAMETER "Address Range Length" is invalid for this PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER "Address Space Granularity" is invalid for
- this PCI root bridge.
-**/
-EFI_STATUS
-EFIAPI
-SubmitResources(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_HANDLE RootBridgeHandle,
- IN VOID *Configuration
- )
-{
- LIST_ENTRY *List;
- PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
- UINT8 *Temp;
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Ptr;
- UINT64 AddrLen;
- UINT64 Alignment;
-
- //
- // Check the input parameter: Configuration
- //
- if (Configuration == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);
- List = HostBridgeInstance->Head.ForwardLink;
-
- Temp = (UINT8 *)Configuration;
- while ( *Temp == 0x8A) {
- Temp += sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) ;
- }
- if (*Temp != 0x79) {
- return EFI_INVALID_PARAMETER;
- }
-
- Temp = (UINT8 *)Configuration;
- while (List != &HostBridgeInstance->Head) {
- RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
- if (RootBridgeHandle == RootBridgeInstance->Handle) {
- while ( *Temp == 0x8A) {
- Ptr = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Temp ;
-
- //
- // Check Address Length
- //
- if (Ptr->AddrLen > 0xffffffff) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Check address range alignment
- //
- if (Ptr->AddrRangeMax >= 0xffffffff ||
- Ptr->AddrRangeMax != (GetPowerOfTwo64 (
- Ptr->AddrRangeMax + 1) - 1)) {
- return EFI_INVALID_PARAMETER;
- }
-
- switch (Ptr->ResType) {
-
- case 0:
-
- //
- // Check invalid Address Sapce Granularity
- //
- if (Ptr->AddrSpaceGranularity != 32) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // check the memory resource request is supported by PCI root bridge
- //
- if (RootBridgeInstance->RootBridgeAttrib ==
- EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM &&
- Ptr->SpecificFlag == 0x06) {
- return EFI_INVALID_PARAMETER;
- }
-
- AddrLen = Ptr->AddrLen;
- Alignment = Ptr->AddrRangeMax;
- if (Ptr->AddrSpaceGranularity == 32) {
- if (Ptr->SpecificFlag == 0x06) {
- //
- // Apply from GCD
- //
- RootBridgeInstance->ResAllocNode[TypePMem32].Status =
- ResSubmitted;
- } else {
- RootBridgeInstance->ResAllocNode[TypeMem32].Length = AddrLen;
- RootBridgeInstance->ResAllocNode[TypeMem32].Alignment =
- Alignment;
- RootBridgeInstance->ResAllocNode[TypeMem32].Status =
- ResRequested;
- HostBridgeInstance->ResourceSubmited = TRUE;
- }
- }
-
- if (Ptr->AddrSpaceGranularity == 64) {
- if (Ptr->SpecificFlag == 0x06) {
- RootBridgeInstance->ResAllocNode[TypePMem64].Status =
- ResSubmitted;
- } else {
- RootBridgeInstance->ResAllocNode[TypeMem64].Status =
- ResSubmitted;
- }
- }
- break;
-
- case 1:
- AddrLen = (UINTN) Ptr->AddrLen;
- Alignment = (UINTN) Ptr->AddrRangeMax;
- RootBridgeInstance->ResAllocNode[TypeIo].Length = AddrLen;
- RootBridgeInstance->ResAllocNode[TypeIo].Alignment = Alignment;
- RootBridgeInstance->ResAllocNode[TypeIo].Status = ResRequested;
- HostBridgeInstance->ResourceSubmited = TRUE;
- break;
-
- default:
- break;
- };
-
- Temp += sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) ;
- }
-
- return EFI_SUCCESS;
- }
-
- List = List->ForwardLink;
- }
-
- return EFI_INVALID_PARAMETER;
-}
-
-/**
- Returns the proposed resource settings for the specified PCI root bridge.
-
- This member function returns the proposed resource settings for the
- specified PCI root bridge. The proposed resource settings are prepared when
- NotifyPhase() is called with a Phase of EfiPciHostBridgeAllocateResources.
- The output parameter Configuration specifies the following:
- - The various types of resources, excluding bus resources, that are
- allocated
- - The associated lengths in terms of ACPI 2.0 resource descriptor format
-
- @param[in] This Pointer to the
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
- instance.
-
- @param[in] RootBridgeHandle The PCI root bridge handle. Type EFI_HANDLE is
- defined in InstallProtocolInterface() in the
- UEFI 2.0 Specification.
-
- @param[out] Configuration The pointer to the pointer to the PCI I/O and
- memory resource descriptor.
-
- @retval EFI_SUCCESS The requested parameters were returned.
-
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge
- handle.
-
- @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-GetProposedResources(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_HANDLE RootBridgeHandle,
- OUT VOID **Configuration
- )
-{
- LIST_ENTRY *List;
- PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
- UINTN Index;
- UINTN Number;
- VOID *Buffer;
- UINT8 *Temp;
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Ptr;
- UINT64 ResStatus;
-
- Buffer = NULL;
- Number = 0;
- //
- // Get the Host Bridge Instance from the resource allocation protocol
- //
- HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);
- List = HostBridgeInstance->Head.ForwardLink;
-
- //
- // Enumerate the root bridges in this host bridge
- //
- while (List != &HostBridgeInstance->Head) {
- RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
- if (RootBridgeHandle == RootBridgeInstance->Handle) {
- for (Index = 0; Index < TypeBus; Index ++) {
- if (RootBridgeInstance->ResAllocNode[Index].Status != ResNone) {
- Number ++;
- }
- }
-
- if (Number == 0) {
- return EFI_INVALID_PARAMETER;
- }
-
- Buffer = AllocateZeroPool (
- Number * sizeof(EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR) +
- sizeof(EFI_ACPI_END_TAG_DESCRIPTOR)
- );
- if (Buffer == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- Temp = Buffer;
- for (Index = 0; Index < TypeBus; Index ++) {
- if (RootBridgeInstance->ResAllocNode[Index].Status != ResNone) {
- Ptr = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Temp ;
- ResStatus = RootBridgeInstance->ResAllocNode[Index].Status;
-
- switch (Index) {
-
- case TypeIo:
- //
- // Io
- //
- Ptr->Desc = 0x8A;
- Ptr->Len = 0x2B;
- Ptr->ResType = 1;
- Ptr->GenFlag = 0;
- Ptr->SpecificFlag = 0;
- Ptr->AddrRangeMin = RootBridgeInstance->ResAllocNode[Index].Base;
- Ptr->AddrRangeMax = 0;
- Ptr->AddrTranslationOffset = (ResStatus == ResAllocated) ?
- EFI_RESOURCE_SATISFIED :
- EFI_RESOURCE_LESS;
- Ptr->AddrLen = RootBridgeInstance->ResAllocNode[Index].Length;
- break;
-
- case TypeMem32:
- //
- // Memory 32
- //
- Ptr->Desc = 0x8A;
- Ptr->Len = 0x2B;
- Ptr->ResType = 0;
- Ptr->GenFlag = 0;
- Ptr->SpecificFlag = 0;
- Ptr->AddrSpaceGranularity = 32;
- Ptr->AddrRangeMin = RootBridgeInstance->ResAllocNode[Index].Base;
- Ptr->AddrRangeMax = 0;
- Ptr->AddrTranslationOffset = (ResStatus == ResAllocated) ?
- EFI_RESOURCE_SATISFIED :
- EFI_RESOURCE_LESS;
- Ptr->AddrLen = RootBridgeInstance->ResAllocNode[Index].Length;
- break;
-
- case TypePMem32:
- //
- // Prefetch memory 32
- //
- Ptr->Desc = 0x8A;
- Ptr->Len = 0x2B;
- Ptr->ResType = 0;
- Ptr->GenFlag = 0;
- Ptr->SpecificFlag = 6;
- Ptr->AddrSpaceGranularity = 32;
- Ptr->AddrRangeMin = 0;
- Ptr->AddrRangeMax = 0;
- Ptr->AddrTranslationOffset = EFI_RESOURCE_NONEXISTENT;
- Ptr->AddrLen = 0;
- break;
-
- case TypeMem64:
- //
- // Memory 64
- //
- Ptr->Desc = 0x8A;
- Ptr->Len = 0x2B;
- Ptr->ResType = 0;
- Ptr->GenFlag = 0;
- Ptr->SpecificFlag = 0;
- Ptr->AddrSpaceGranularity = 64;
- Ptr->AddrRangeMin = 0;
- Ptr->AddrRangeMax = 0;
- Ptr->AddrTranslationOffset = EFI_RESOURCE_NONEXISTENT;
- Ptr->AddrLen = 0;
- break;
-
- case TypePMem64:
- //
- // Prefetch memory 64
- //
- Ptr->Desc = 0x8A;
- Ptr->Len = 0x2B;
- Ptr->ResType = 0;
- Ptr->GenFlag = 0;
- Ptr->SpecificFlag = 6;
- Ptr->AddrSpaceGranularity = 64;
- Ptr->AddrRangeMin = 0;
- Ptr->AddrRangeMax = 0;
- Ptr->AddrTranslationOffset = EFI_RESOURCE_NONEXISTENT;
- Ptr->AddrLen = 0;
- break;
- };
-
- Temp += sizeof (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR);
- }
- }
-
- ((EFI_ACPI_END_TAG_DESCRIPTOR *)Temp)->Desc = 0x79;
- ((EFI_ACPI_END_TAG_DESCRIPTOR *)Temp)->Checksum = 0x0;
-
- *Configuration = Buffer;
-
- return EFI_SUCCESS;
- }
-
- List = List->ForwardLink;
- }
-
- return EFI_INVALID_PARAMETER;
-}
-
-/**
- Provides the hooks from the PCI bus driver to every PCI controller
- (device/function) at various stages of the PCI enumeration process that allow
- the host bridge driver to preinitialize individual PCI controllers before
- enumeration.
-
- This function is called during the PCI enumeration process. No specific
- action is expected from this member function. It allows the host bridge
- driver to preinitialize individual PCI controllers before enumeration.
-
- @param This Pointer to the
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
- instance.
-
- @param RootBridgeHandle The associated PCI root bridge handle. Type
- EFI_HANDLE is defined in InstallProtocolInterface()
- in the UEFI 2.0 Specification.
-
- @param PciAddress The address of the PCI device on the PCI bus. This
- address can be passed to the
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL member functions to
- access the PCI configuration space of the device.
- See Table 12-1 in the UEFI 2.0 Specification for the
- definition of
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS.
-
- @param Phase The phase of the PCI device enumeration.
-
- @retval EFI_SUCCESS The requested parameters were returned.
-
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge
- handle.
-
- @retval EFI_INVALID_PARAMETER Phase is not a valid phase that is defined
- in
- EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE.
-
- @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.
- The PCI enumerator should not enumerate this
- device, including its child devices if it is
- a PCI-to-PCI bridge.
-**/
-EFI_STATUS
-EFIAPI
-PreprocessController (
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_HANDLE RootBridgeHandle,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS PciAddress,
- IN EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE Phase
- )
-{
- PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;
- PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
- LIST_ENTRY *List;
-
- HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);
- List = HostBridgeInstance->Head.ForwardLink;
-
- //
- // Enumerate the root bridges in this host bridge
- //
- while (List != &HostBridgeInstance->Head) {
- RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
- if (RootBridgeHandle == RootBridgeInstance->Handle) {
- break;
- }
- List = List->ForwardLink;
- }
- if (List == &HostBridgeInstance->Head) {
- return EFI_INVALID_PARAMETER;
- }
-
- if ((UINT32)Phase > EfiPciBeforeResourceCollection) {
- return EFI_INVALID_PARAMETER;
- }
-
- return EFI_SUCCESS;
-}
diff --git a/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.h b/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.h deleted file mode 100644 index f475eb7e23..0000000000 --- a/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.h +++ /dev/null @@ -1,649 +0,0 @@ -/** @file
- The Header file of the Pci Host Bridge Driver
-
- Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.<BR>
-
- This program and the accompanying materials are licensed and made available
- under the terms and conditions of the BSD License which accompanies this
- distribution. The full text of the license may be found at
- 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 _PCI_HOST_BRIDGE_H_
-#define _PCI_HOST_BRIDGE_H_
-
-#include <PiDxe.h>
-
-#include <IndustryStandard/Pci.h>
-#include <IndustryStandard/Acpi.h>
-
-#include <Protocol/PciHostBridgeResourceAllocation.h>
-#include <Protocol/PciRootBridgeIo.h>
-#include <Protocol/Metronome.h>
-#include <Protocol/DevicePath.h>
-
-
-#include <Library/BaseLib.h>
-#include <Library/DebugLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/UefiLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/DxeServicesTableLib.h>
-#include <Library/DevicePathLib.h>
-#include <Library/IoLib.h>
-#include <Library/PciLib.h>
-
-//
-// Hard code the host bridge number in the platform.
-// In this chipset, there is only one host bridge.
-//
-#define HOST_BRIDGE_NUMBER 1
-
-#define MAX_PCI_DEVICE_NUMBER 31
-#define MAX_PCI_FUNCTION_NUMBER 7
-#define MAX_PCI_REG_ADDRESS 0xFF
-
-typedef enum {
- IoOperation,
- MemOperation,
- PciOperation
-} OPERATION_TYPE;
-
-#define PCI_HOST_BRIDGE_SIGNATURE SIGNATURE_32('e', 'h', 's', 't')
-typedef struct {
- UINTN Signature;
- EFI_HANDLE HostBridgeHandle;
- UINTN RootBridgeNumber;
- LIST_ENTRY Head;
- BOOLEAN ResourceSubmited;
- BOOLEAN CanRestarted;
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL ResAlloc;
-} PCI_HOST_BRIDGE_INSTANCE;
-
-#define INSTANCE_FROM_RESOURCE_ALLOCATION_THIS(a) \
- CR(a, PCI_HOST_BRIDGE_INSTANCE, ResAlloc, PCI_HOST_BRIDGE_SIGNATURE)
-
-//
-// HostBridge Resource Allocation interface
-//
-
-/**
- These are the notifications from the PCI bus driver that it is about to enter
- a certain phase of the PCI enumeration process.
-
- This member function can be used to notify the host bridge driver to perform
- specific actions, including any chipset-specific initialization, so that the
- chipset is ready to enter the next phase. Eight notification points are
- defined at this time. See belows:
-
- EfiPciHostBridgeBeginEnumeration Resets the host bridge PCI apertures
- and internal data structures. The PCI
- enumerator should issue this
- notification before starting a fresh
- enumeration process. Enumeration
- cannot be restarted after sending any
- other notification such as
- EfiPciHostBridgeBeginBusAllocation.
-
- EfiPciHostBridgeBeginBusAllocation The bus allocation phase is about to
- begin. No specific action is required
- here. This notification can be used to
- perform any chipset-specific
- programming.
-
- EfiPciHostBridgeEndBusAllocation The bus allocation and bus programming
- phase is complete. No specific action
- is required here. This notification
- can be used to perform any
- chipset-specific programming.
-
- EfiPciHostBridgeBeginResourceAllocation
- The resource allocation phase is about
- to begin. No specific action is
- required here. This notification can
- be used to perform any
- chipset-specific programming.
-
- EfiPciHostBridgeAllocateResources Allocates resources per previously
- submitted requests for all the PCI
- root bridges. These resource settings
- are returned on the next call to
- GetProposedResources(). Before calling
- NotifyPhase() with a Phase of
- EfiPciHostBridgeAllocateResource, the
- PCI bus enumerator is responsible for
- gathering I/O and memory requests for
- all the PCI root bridges and
- submitting these requests using
- SubmitResources(). This function pads
- the resource amount to suit the root
- bridge hardware, takes care of
- dependencies between the PCI root
- bridges, and calls the Global
- Coherency Domain (GCD) with the
- allocation request. In the case of
- padding, the allocated range could be
- bigger than what was requested.
-
- EfiPciHostBridgeSetResources Programs the host bridge hardware to
- decode previously allocated resources
- (proposed resources) for all the PCI
- root bridges. After the hardware is
- programmed, reassigning resources will
- not be supported. The bus settings are
- not affected.
-
- EfiPciHostBridgeFreeResources Deallocates resources that were
- previously allocated for all the PCI
- root bridges and resets the I/O and
- memory apertures to their initial
- state. The bus settings are not
- affected. If the request to allocate
- resources fails, the PCI enumerator
- can use this notification to
- deallocate previous resources, adjust
- the requests, and retry allocation.
-
- EfiPciHostBridgeEndResourceAllocation The resource allocation phase is
- completed. No specific action is
- required here. This notification can
- be used to perform any chipsetspecific
- programming.
-
- @param[in] This The instance pointer of
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
-
- @param[in] Phase The phase during enumeration
-
- @retval EFI_NOT_READY This phase cannot be entered at this time. For
- example, this error is valid for a Phase of
- EfiPciHostBridgeAllocateResources if
- SubmitResources() has not been called for one
- or more PCI root bridges before this call
-
- @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.
- This error is valid for a Phase of
- EfiPciHostBridgeSetResources.
-
- @retval EFI_INVALID_PARAMETER Invalid phase parameter
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources. This error is valid for a
- Phase of EfiPciHostBridgeAllocateResources if
- the previously submitted resource requests
- cannot be fulfilled or were only partially
- fulfilled.
-
- @retval EFI_SUCCESS The notification was accepted without any
- errors.
-**/
-EFI_STATUS
-EFIAPI
-NotifyPhase(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE Phase
- );
-
-/**
- Return the device handle of the next PCI root bridge that is associated with
- this Host Bridge.
-
- This function is called multiple times to retrieve the device handles of all
- the PCI root bridges that are associated with this PCI host bridge. Each PCI
- host bridge is associated with one or more PCI root bridges. On each call,
- the handle that was returned by the previous call is passed into the
- interface, and on output the interface returns the device handle of the next
- PCI root bridge. The caller can use the handle to obtain the instance of the
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL for that root bridge. When there are no more
- PCI root bridges to report, the interface returns EFI_NOT_FOUND. A PCI
- enumerator must enumerate the PCI root bridges in the order that they are
- returned by this function.
-
- For D945 implementation, there is only one root bridge in PCI host bridge.
-
- @param[in] This The instance pointer of
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
-
- @param[in, out] RootBridgeHandle Returns the device handle of the next PCI
- root bridge.
-
- @retval EFI_SUCCESS If parameter RootBridgeHandle = NULL, then
- return the first Rootbridge handle of the
- specific Host bridge and return EFI_SUCCESS.
-
- @retval EFI_NOT_FOUND Can not find the any more root bridge in
- specific host bridge.
-
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is not an EFI_HANDLE that was
- returned on a previous call to
- GetNextRootBridge().
-**/
-EFI_STATUS
-EFIAPI
-GetNextRootBridge(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN OUT EFI_HANDLE *RootBridgeHandle
- );
-
-/**
- Returns the allocation attributes of a PCI root bridge.
-
- The function returns the allocation attributes of a specific PCI root bridge.
- The attributes can vary from one PCI root bridge to another. These attributes
- are different from the decode-related attributes that are returned by the
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.GetAttributes() member function. The
- RootBridgeHandle parameter is used to specify the instance of the PCI root
- bridge. The device handles of all the root bridges that are associated with
- this host bridge must be obtained by calling GetNextRootBridge(). The
- attributes are static in the sense that they do not change during or after
- the enumeration process. The hardware may provide mechanisms to change the
- attributes on the fly, but such changes must be completed before
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL is installed. The permitted
- values of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ATTRIBUTES are defined in
- "Related Definitions" below. The caller uses these attributes to combine
- multiple resource requests.
-
- For example, if the flag EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM is set, the PCI
- bus enumerator needs to include requests for the prefetchable memory in the
- nonprefetchable memory pool and not request any prefetchable memory.
-
- Attribute Description
- ------------------------------------ ---------------------------------------
- EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM If this bit is set, then the PCI root
- bridge does not support separate
- windows for nonprefetchable and
- prefetchable memory. A PCI bus driver
- needs to include requests for
- prefetchable memory in the
- nonprefetchable memory pool.
-
- EFI_PCI_HOST_BRIDGE_MEM64_DECODE If this bit is set, then the PCI root
- bridge supports 64-bit memory windows.
- If this bit is not set, the PCI bus
- driver needs to include requests for a
- 64-bit memory address in the
- corresponding 32-bit memory pool.
-
- @param[in] This The instance pointer of
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
-
- @param[in] RootBridgeHandle The device handle of the PCI root bridge in
- which the caller is interested. Type
- EFI_HANDLE is defined in
- InstallProtocolInterface() in the UEFI 2.0
- Specification.
-
- @param[out] Attributes The pointer to attribte of root bridge, it is
- output parameter
-
- @retval EFI_INVALID_PARAMETER Attribute pointer is NULL
-
- @retval EFI_INVALID_PARAMETER RootBridgehandle is invalid.
-
- @retval EFI_SUCCESS Success to get attribute of interested root
- bridge.
-**/
-EFI_STATUS
-EFIAPI
-GetAttributes(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_HANDLE RootBridgeHandle,
- OUT UINT64 *Attributes
- );
-
-/**
- Sets up the specified PCI root bridge for the bus enumeration process.
-
- This member function sets up the root bridge for bus enumeration and returns
- the PCI bus range over which the search should be performed in ACPI 2.0
- resource descriptor format.
-
- @param[in] This The
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
- instance.
-
- @param[in] RootBridgeHandle The PCI Root Bridge to be set up.
-
- @param[out] Configuration Pointer to the pointer to the PCI bus resource
- descriptor.
-
- @retval EFI_INVALID_PARAMETER Invalid Root bridge's handle
-
- @retval EFI_OUT_OF_RESOURCES Fail to allocate ACPI resource descriptor tag.
-
- @retval EFI_SUCCESS Sucess to allocate ACPI resource descriptor.
-**/
-EFI_STATUS
-EFIAPI
-StartBusEnumeration(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_HANDLE RootBridgeHandle,
- OUT VOID **Configuration
- );
-
-/**
- Programs the PCI root bridge hardware so that it decodes the specified PCI
- bus range.
-
- This member function programs the specified PCI root bridge to decode the bus
- range that is specified by the input parameter Configuration.
- The bus range information is specified in terms of the ACPI 2.0 resource
- descriptor format.
-
- @param[in] This The
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
- instance
-
- @param[in] RootBridgeHandle The PCI Root Bridge whose bus range is to be
- programmed
-
- @param[in] Configuration The pointer to the PCI bus resource descriptor
-
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge
- handle.
-
- @retval EFI_INVALID_PARAMETER Configuration is NULL.
-
- @retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI
- 2.0 resource descriptor.
-
- @retval EFI_INVALID_PARAMETER Configuration does not include a valid ACPI
- 2.0 bus resource descriptor.
-
- @retval EFI_INVALID_PARAMETER Configuration includes valid ACPI 2.0 resource
- descriptors other than bus descriptors.
-
- @retval EFI_INVALID_PARAMETER Configuration contains one or more invalid
- ACPI resource descriptors.
-
- @retval EFI_INVALID_PARAMETER "Address Range Minimum" is invalid for this
- root bridge.
-
- @retval EFI_INVALID_PARAMETER "Address Range Length" is invalid for this
- root bridge.
-
- @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.
-
- @retval EFI_SUCCESS The bus range for the PCI root bridge was
- programmed.
-**/
-EFI_STATUS
-EFIAPI
-SetBusNumbers(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_HANDLE RootBridgeHandle,
- IN VOID *Configuration
- );
-
-/**
- Submits the I/O and memory resource requirements for the specified PCI root
- bridge.
-
- This function is used to submit all the I/O and memory resources that are
- required by the specified PCI root bridge. The input parameter Configuration
- is used to specify the following:
- - The various types of resources that are required
- - The associated lengths in terms of ACPI 2.0 resource descriptor format
-
- @param[in] This Pointer to the
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
- instance.
-
- @param[in] RootBridgeHandle The PCI root bridge whose I/O and memory
- resource requirements are being submitted.
-
- @param[in] Configuration The pointer to the PCI I/O and PCI memory
- resource descriptor.
-
- @retval EFI_SUCCESS The I/O and memory resource requests for a PCI
- root bridge were accepted.
-
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge
- handle.
-
- @retval EFI_INVALID_PARAMETER Configuration is NULL.
-
- @retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI
- 2.0 resource descriptor.
-
- @retval EFI_INVALID_PARAMETER Configuration includes requests for one or
- more resource types that are not supported by
- this PCI root bridge. This error will happen
- if the caller did not combine resources
- according to Attributes that were returned by
- GetAllocAttributes().
-
- @retval EFI_INVALID_PARAMETER Address Range Maximum" is invalid.
-
- @retval EFI_INVALID_PARAMETER "Address Range Length" is invalid for this PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER "Address Space Granularity" is invalid for
- this PCI root bridge.
-**/
-EFI_STATUS
-EFIAPI
-SubmitResources(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_HANDLE RootBridgeHandle,
- IN VOID *Configuration
- );
-
-/**
- Returns the proposed resource settings for the specified PCI root bridge.
-
- This member function returns the proposed resource settings for the
- specified PCI root bridge. The proposed resource settings are prepared when
- NotifyPhase() is called with a Phase of EfiPciHostBridgeAllocateResources.
- The output parameter Configuration specifies the following:
- - The various types of resources, excluding bus resources, that are
- allocated
- - The associated lengths in terms of ACPI 2.0 resource descriptor format
-
- @param[in] This Pointer to the
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
- instance.
-
- @param[in] RootBridgeHandle The PCI root bridge handle. Type EFI_HANDLE is
- defined in InstallProtocolInterface() in the
- UEFI 2.0 Specification.
-
- @param[out] Configuration The pointer to the pointer to the PCI I/O and
- memory resource descriptor.
-
- @retval EFI_SUCCESS The requested parameters were returned.
-
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge
- handle.
-
- @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-GetProposedResources(
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_HANDLE RootBridgeHandle,
- OUT VOID **Configuration
- );
-
-/**
- Provides the hooks from the PCI bus driver to every PCI controller
- (device/function) at various stages of the PCI enumeration process that allow
- the host bridge driver to preinitialize individual PCI controllers before
- enumeration.
-
- This function is called during the PCI enumeration process. No specific
- action is expected from this member function. It allows the host bridge
- driver to preinitialize individual PCI controllers before enumeration.
-
- @param This Pointer to the
- EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
- instance.
-
- @param RootBridgeHandle The associated PCI root bridge handle. Type
- EFI_HANDLE is defined in InstallProtocolInterface()
- in the UEFI 2.0 Specification.
-
- @param PciAddress The address of the PCI device on the PCI bus. This
- address can be passed to the
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL member functions to
- access the PCI configuration space of the device.
- See Table 12-1 in the UEFI 2.0 Specification for the
- definition of
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS.
-
- @param Phase The phase of the PCI device enumeration.
-
- @retval EFI_SUCCESS The requested parameters were returned.
-
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge
- handle.
-
- @retval EFI_INVALID_PARAMETER Phase is not a valid phase that is defined
- in
- EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE.
-
- @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.
- The PCI enumerator should not enumerate this
- device, including its child devices if it is
- a PCI-to-PCI bridge.
-**/
-EFI_STATUS
-EFIAPI
-PreprocessController (
- IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
- IN EFI_HANDLE RootBridgeHandle,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS PciAddress,
- IN EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE Phase
- );
-
-
-//
-// Define resource status constant
-//
-#define EFI_RESOURCE_NONEXISTENT 0xFFFFFFFFFFFFFFFFULL
-#define EFI_RESOURCE_LESS 0xFFFFFFFFFFFFFFFEULL
-
-
-//
-// Driver Instance Data Prototypes
-//
-
-typedef struct {
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_OPERATION Operation;
- UINTN NumberOfBytes;
- UINTN NumberOfPages;
- EFI_PHYSICAL_ADDRESS HostAddress;
- EFI_PHYSICAL_ADDRESS MappedHostAddress;
-} MAP_INFO;
-
-typedef struct {
- ACPI_HID_DEVICE_PATH AcpiDevicePath;
- EFI_DEVICE_PATH_PROTOCOL EndDevicePath;
-} EFI_PCI_ROOT_BRIDGE_DEVICE_PATH;
-
-typedef struct {
- UINT64 BusBase;
- UINT64 BusLimit;
-
- UINT64 MemBase;
- UINT64 MemLimit;
-
- UINT64 IoBase;
- UINT64 IoLimit;
-} PCI_ROOT_BRIDGE_RESOURCE_APERTURE;
-
-typedef enum {
- TypeIo = 0,
- TypeMem32,
- TypePMem32,
- TypeMem64,
- TypePMem64,
- TypeBus,
- TypeMax
-} PCI_RESOURCE_TYPE;
-
-typedef enum {
- ResNone = 0,
- ResSubmitted,
- ResRequested,
- ResAllocated,
- ResStatusMax
-} RES_STATUS;
-
-typedef struct {
- PCI_RESOURCE_TYPE Type;
- UINT64 Base;
- UINT64 Length;
- UINT64 Alignment;
- RES_STATUS Status;
-} PCI_RES_NODE;
-
-#define PCI_ROOT_BRIDGE_SIGNATURE SIGNATURE_32('e', '2', 'p', 'b')
-
-typedef struct {
- UINT32 Signature;
- LIST_ENTRY Link;
- EFI_HANDLE Handle;
- UINT64 RootBridgeAttrib;
- UINT64 Attributes;
- UINT64 Supports;
-
- //
- // Specific for this memory controller: Bus, I/O, Mem
- //
- PCI_RES_NODE ResAllocNode[6];
-
- //
- // Addressing for Memory and I/O and Bus arrange
- //
- UINT64 BusBase;
- UINT64 MemBase;
- UINT64 IoBase;
- UINT64 BusLimit;
- UINT64 MemLimit;
- UINT64 IoLimit;
-
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL Io;
-
-} PCI_ROOT_BRIDGE_INSTANCE;
-
-
-//
-// Driver Instance Data Macros
-//
-#define DRIVER_INSTANCE_FROM_PCI_ROOT_BRIDGE_IO_THIS(a) \
- CR(a, PCI_ROOT_BRIDGE_INSTANCE, Io, PCI_ROOT_BRIDGE_SIGNATURE)
-
-
-#define DRIVER_INSTANCE_FROM_LIST_ENTRY(a) \
- CR(a, PCI_ROOT_BRIDGE_INSTANCE, Link, PCI_ROOT_BRIDGE_SIGNATURE)
-
-/**
-
- Construct the Pci Root Bridge Io protocol
-
- @param Protocol Point to protocol instance
- @param HostBridgeHandle Handle of host bridge
- @param Attri Attribute of host bridge
- @param ResAperture ResourceAperture for host bridge
-
- @retval EFI_SUCCESS Success to initialize the Pci Root Bridge.
-**/
-EFI_STATUS
-RootBridgeConstructor (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *Protocol,
- IN EFI_HANDLE HostBridgeHandle,
- IN UINT64 Attri,
- IN PCI_ROOT_BRIDGE_RESOURCE_APERTURE *ResAperture
- );
-
-#endif
diff --git a/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.uni b/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.uni deleted file mode 100644 index 7b22b20eea..0000000000 --- a/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.uni +++ /dev/null @@ -1,22 +0,0 @@ -// /** @file
-// The basic interfaces implementation to a single segment PCI Host Bridge driver.
-//
-// The basic interfaces implementation to a single segment PCI Host Bridge driver.
-//
-// Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.<BR>
-//
-// This program and the accompanying materials
-// are licensed and made available under the terms and conditions of the BSD License
-// which accompanies this distribution. The full text of the license may be found at
-// 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.
-//
-// **/
-
-
-#string STR_MODULE_ABSTRACT #language en-US "The basic interfaces implementation to a single segment PCI Host Bridge driver"
-
-#string STR_MODULE_DESCRIPTION #language en-US "The basic interfaces implementation to a single segment PCI Host Bridge driver."
-
diff --git a/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridgeDxe.inf b/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridgeDxe.inf deleted file mode 100644 index be3622ba95..0000000000 --- a/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridgeDxe.inf +++ /dev/null @@ -1,68 +0,0 @@ -## @file
-# The basic interfaces implementation to a single segment PCI Host Bridge
-# driver.
-#
-# Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.<BR>
-#
-# This program and the accompanying materials are licensed and made available
-# under the terms and conditions of the BSD License which accompanies this
-# distribution. The full text of the license may be found at
-# 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 = PciHostBridge
- MODULE_UNI_FILE = PciHostBridge.uni
- FILE_GUID = 2383608E-C6D0-4e3e-858D-45DFAC3543D5
- MODULE_TYPE = DXE_DRIVER
- VERSION_STRING = 1.0
-
- ENTRY_POINT = InitializePciHostBridge
-
-[Packages]
- MdePkg/MdePkg.dec
-
-[LibraryClasses]
- UefiDriverEntryPoint
- UefiBootServicesTableLib
- DxeServicesTableLib
- UefiLib
- MemoryAllocationLib
- BaseMemoryLib
- BaseLib
- DebugLib
- DevicePathLib
- IoLib
- PciLib
-
-[Sources]
- PciHostBridge.c
- PciRootBridgeIo.c
- PciHostBridge.h
- IoFifo.h
-
-[Sources.IA32]
- Ia32/IoFifo.asm
- Ia32/IoFifo.S
-
-[Sources.X64]
- X64/IoFifo.asm
- X64/IoFifo.S
-
-[Protocols]
- gEfiPciHostBridgeResourceAllocationProtocolGuid ## PRODUCES
- gEfiPciRootBridgeIoProtocolGuid ## PRODUCES
- gEfiMetronomeArchProtocolGuid ## CONSUMES
- gEfiDevicePathProtocolGuid ## PRODUCES
-
-[depex]
- gEfiMetronomeArchProtocolGuid
-
-[UserExtensions.TianoCore."ExtraFiles"]
- PciHostBridgeExtra.uni
diff --git a/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridgeExtra.uni b/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridgeExtra.uni deleted file mode 100644 index 0f40c4bd46..0000000000 --- a/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridgeExtra.uni +++ /dev/null @@ -1,20 +0,0 @@ -// /** @file
-// PciHostBridge Localized Strings and Content
-//
-// Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>
-//
-// This program and the accompanying materials
-// are licensed and made available under the terms and conditions of the BSD License
-// which accompanies this distribution. The full text of the license may be found at
-// 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.
-//
-// **/
-
-#string STR_PROPERTIES_MODULE_NAME
-#language en-US
-"PCI Host Bridge DXE Driver"
-
-
diff --git a/PcAtChipsetPkg/PciHostBridgeDxe/PciRootBridgeIo.c b/PcAtChipsetPkg/PciHostBridgeDxe/PciRootBridgeIo.c deleted file mode 100644 index 5de28b18eb..0000000000 --- a/PcAtChipsetPkg/PciHostBridgeDxe/PciRootBridgeIo.c +++ /dev/null @@ -1,2626 +0,0 @@ -/** @file
- PCI Root Bridge Io Protocol implementation
-
- Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
-
- This program and the accompanying materials are licensed and made available
- under the terms and conditions of the BSD License which accompanies this
- distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
- WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-**/
-
-#include "PciHostBridge.h"
-#include "IoFifo.h"
-
-typedef struct {
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR SpaceDesp[TypeMax];
- EFI_ACPI_END_TAG_DESCRIPTOR EndDesp;
-} RESOURCE_CONFIGURATION;
-
-RESOURCE_CONFIGURATION Configuration = {
- {{0x8A, 0x2B, 1, 0, 0, 0, 0, 0, 0, 0},
- {0x8A, 0x2B, 0, 0, 0, 32, 0, 0, 0, 0},
- {0x8A, 0x2B, 0, 0, 6, 32, 0, 0, 0, 0},
- {0x8A, 0x2B, 0, 0, 0, 64, 0, 0, 0, 0},
- {0x8A, 0x2B, 0, 0, 6, 64, 0, 0, 0, 0},
- {0x8A, 0x2B, 2, 0, 0, 0, 0, 0, 0, 0}},
- {0x79, 0}
-};
-
-//
-// Protocol Member Function Prototypes
-//
-
-/**
- Polls an address in memory mapped I/O space until an exit condition is met,
- or a timeout occurs.
-
- This function provides a standard way to poll a PCI memory location. A PCI
- memory read operation is performed at the PCI memory address specified by
- Address for the width specified by Width. The result of this PCI memory read
- operation is stored in Result. This PCI memory read operation is repeated
- until either a timeout of Delay 100 ns units has expired, or (Result & Mask)
- is equal to Value.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] Address The base address of the memory operations. The caller
- is responsible for aligning Address if required.
-
- @param[in] Mask Mask used for the polling criteria. Bytes above Width
- in Mask are ignored. The bits in the bytes below Width
- which are zero in Mask are ignored when polling the
- memory address.
-
- @param[in] Value The comparison value used for the polling exit
- criteria.
-
- @param[in] Delay The number of 100 ns units to poll. Note that timer
- available may be of poorer granularity.
-
- @param[out] Result Pointer to the last value read from the memory
- location.
-
- @retval EFI_SUCCESS The last data returned from the access matched
- the poll exit criteria.
-
- @retval EFI_INVALID_PARAMETER Width is invalid.
-
- @retval EFI_INVALID_PARAMETER Result is NULL.
-
- @retval EFI_TIMEOUT Delay expired before a match occurred.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoPollMem (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINT64 Mask,
- IN UINT64 Value,
- IN UINT64 Delay,
- OUT UINT64 *Result
- );
-
-/**
- Reads from the I/O space of a PCI Root Bridge. Returns when either the
- polling exit criteria is satisfied or after a defined duration.
-
- This function provides a standard way to poll a PCI I/O location. A PCI I/O
- read operation is performed at the PCI I/O address specified by Address for
- the width specified by Width. The result of this PCI I/O read operation is
- stored in Result. This PCI I/O read operation is repeated until either a
- timeout of Delay 100 ns units has expired, or (Result & Mask) is equal to
- Value.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the I/O operations.
-
- @param[in] Address The base address of the I/O operations. The caller is
- responsible for aligning Address if required.
-
- @param[in] Mask Mask used for the polling criteria. Bytes above Width in
- Mask are ignored. The bits in the bytes below Width
- which are zero in Mask are ignored when polling the I/O
- address.
-
- @param[in] Value The comparison value used for the polling exit criteria.
-
-
- @param[in] Delay The number of 100 ns units to poll. Note that timer
- available may be of poorer granularity.
-
- @param[out] Result Pointer to the last value read from the memory location.
-
- @retval EFI_SUCCESS The last data returned from the access matched
- the poll exit criteria.
-
- @retval EFI_INVALID_PARAMETER Width is invalid.
-
- @retval EFI_INVALID_PARAMETER Result is NULL.
-
- @retval EFI_TIMEOUT Delay expired before a match occurred.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoPollIo (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINT64 Mask,
- IN UINT64 Value,
- IN UINT64 Delay,
- OUT UINT64 *Result
- );
-
-/**
- Enables a PCI driver to access PCI controller registers in the PCI root
- bridge memory space.
-
- The Mem.Read(), and Mem.Write() functions enable a driver to access PCI
- controller registers in the PCI root bridge memory space.
- The memory operations are carried out exactly as requested. The caller is
- responsible for satisfying any alignment and memory width restrictions that a
- PCI Root Bridge on a platform might require.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operation.
-
- @param[in] Address The base address of the memory operation. The caller
- is responsible for aligning the Address if required.
-
- @param[in] Count The number of memory operations to perform. Bytes
- moved is Width size * Count, starting at Address.
-
- @param[out] Buffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- to write data from.
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoMemRead (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- OUT VOID *Buffer
- );
-
-/**
- Enables a PCI driver to access PCI controller registers in the PCI root
- bridge memory space.
-
- The Mem.Read(), and Mem.Write() functions enable a driver to access PCI
- controller registers in the PCI root bridge memory space.
- The memory operations are carried out exactly as requested. The caller is
- responsible for satisfying any alignment and memory width restrictions that a
- PCI Root Bridge on a platform might require.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operation.
-
- @param[in] Address The base address of the memory operation. The caller
- is responsible for aligning the Address if required.
-
- @param[in] Count The number of memory operations to perform. Bytes
- moved is Width size * Count, starting at Address.
-
- @param[in] Buffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- to write data from.
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoMemWrite (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN VOID *Buffer
- );
-
-/**
- Enables a PCI driver to access PCI controller registers in the PCI root
- bridge I/O space.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] UserAddress The base address of the I/O operation. The caller is
- responsible for aligning the Address if required.
-
- @param[in] Count The number of I/O operations to perform. Bytes moved
- is Width size * Count, starting at Address.
-
- @param[out] UserBuffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- to write data from.
-
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoIoRead (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 UserAddress,
- IN UINTN Count,
- OUT VOID *UserBuffer
- );
-
-/**
- Enables a PCI driver to access PCI controller registers in the PCI root
- bridge I/O space.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] UserAddress The base address of the I/O operation. The caller is
- responsible for aligning the Address if required.
-
- @param[in] Count The number of I/O operations to perform. Bytes moved
- is Width size * Count, starting at Address.
-
- @param[in] UserBuffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- to write data from.
-
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoIoWrite (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 UserAddress,
- IN UINTN Count,
- IN VOID *UserBuffer
- );
-
-/**
- Enables a PCI driver to copy one region of PCI root bridge memory space to
- another region of PCI root bridge memory space.
-
- The CopyMem() function enables a PCI driver to copy one region of PCI root
- bridge memory space to another region of PCI root bridge memory space. This
- is especially useful for video scroll operation on a memory mapped video
- buffer.
- The memory operations are carried out exactly as requested. The caller is
- responsible for satisfying any alignment and memory width restrictions that a
- PCI root bridge on a platform might require.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
- instance.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] DestAddress The destination address of the memory operation. The
- caller is responsible for aligning the DestAddress if
- required.
-
- @param[in] SrcAddress The source address of the memory operation. The caller
- is responsible for aligning the SrcAddress if
- required.
-
- @param[in] Count The number of memory operations to perform. Bytes
- moved is Width size * Count, starting at DestAddress
- and SrcAddress.
-
-
- @retval EFI_SUCCESS The data was copied from one memory region
- to another memory region.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoCopyMem (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 DestAddress,
- IN UINT64 SrcAddress,
- IN UINTN Count
- );
-
-/**
- Enables a PCI driver to access PCI controller registers in a PCI root
- bridge's configuration space.
-
- The Pci.Read() and Pci.Write() functions enable a driver to access PCI
- configuration registers for a PCI controller.
- The PCI Configuration operations are carried out exactly as requested. The
- caller is responsible for any alignment and PCI configuration width issues
- that a PCI Root Bridge on a platform might require.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] Address The address within the PCI configuration space for the
- PCI controller.
-
- @param[in] Count The number of PCI configuration operations to perform.
- Bytes moved is Width size * Count, starting at
- Address.
-
- @param[out] Buffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- to write data from.
-
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoPciRead (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- OUT VOID *Buffer
- );
-
-/**
- Enables a PCI driver to access PCI controller registers in a PCI root
- bridge's configuration space.
-
- The Pci.Read() and Pci.Write() functions enable a driver to access PCI
- configuration registers for a PCI controller.
- The PCI Configuration operations are carried out exactly as requested. The
- caller is responsible for any alignment and PCI configuration width issues
- that a PCI Root Bridge on a platform might require.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] Address The address within the PCI configuration space for the
- PCI controller.
-
- @param[in] Count The number of PCI configuration operations to perform.
- Bytes moved is Width size * Count, starting at
- Address.
-
- @param[in] Buffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- to write data from.
-
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoPciWrite (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN VOID *Buffer
- );
-
-/**
- Provides the PCI controller-specific addresses required to access system
- memory from a DMA bus master.
-
- The Map() function provides the PCI controller specific addresses needed to
- access system memory. This function is used to map system memory for PCI bus
- master DMA accesses.
-
- @param[in] This A pointer to the
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Operation Indicates if the bus master is going to read
- or write to system memory.
-
- @param[in] HostAddress The system memory address to map to the PCI
- controller.
-
- @param[in, out] NumberOfBytes On input the number of bytes to map. On
- output the number of bytes that were mapped.
-
- @param[out] DeviceAddress The resulting map address for the bus master
- PCI controller to use to access the system
- memory's HostAddress.
-
- @param[out] Mapping The value to pass to Unmap() when the bus
- master DMA operation is complete.
-
- @retval EFI_SUCCESS The range was mapped for the returned
- NumberOfBytes.
-
- @retval EFI_INVALID_PARAMETER Operation is invalid.
-
- @retval EFI_INVALID_PARAMETER HostAddress is NULL.
-
- @retval EFI_INVALID_PARAMETER NumberOfBytes is NULL.
-
- @retval EFI_INVALID_PARAMETER DeviceAddress is NULL.
-
- @retval EFI_INVALID_PARAMETER Mapping is NULL.
-
- @retval EFI_UNSUPPORTED The HostAddress cannot be mapped as a common
- buffer.
-
- @retval EFI_DEVICE_ERROR The system hardware could not map the
- requested address.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoMap (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_OPERATION Operation,
- IN VOID *HostAddress,
- IN OUT UINTN *NumberOfBytes,
- OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
- OUT VOID **Mapping
- );
-
-/**
- Completes the Map() operation and releases any corresponding resources.
-
- The Unmap() function completes the Map() operation and releases any
- corresponding resources.
- If the operation was an EfiPciOperationBusMasterWrite or
- EfiPciOperationBusMasterWrite64, the data is committed to the target system
- memory.
- Any resources used for the mapping are freed.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Mapping The mapping value returned from Map().
-
- @retval EFI_SUCCESS The range was unmapped.
-
- @retval EFI_INVALID_PARAMETER Mapping is not a value that was returned by
- Map().
-
- @retval EFI_DEVICE_ERROR The data was not committed to the target
- system memory.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoUnmap (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN VOID *Mapping
- );
-
-/**
- Allocates pages that are suitable for an EfiPciOperationBusMasterCommonBuffer
- or EfiPciOperationBusMasterCommonBuffer64 mapping.
-
- @param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param Type This parameter is not used and must be ignored.
-
- @param MemoryType The type of memory to allocate, EfiBootServicesData or
- EfiRuntimeServicesData.
-
- @param Pages The number of pages to allocate.
-
- @param HostAddress A pointer to store the base system memory address of the
- allocated range.
-
- @param Attributes The requested bit mask of attributes for the allocated
- range. Only the attributes
- EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE,
- EFI_PCI_ATTRIBUTE_MEMORY_CACHED, and
- EFI_PCI_ATTRIBUTE_DUAL_ADDRESS_CYCLE may be used with this
- function.
-
- @retval EFI_SUCCESS The requested memory pages were allocated.
-
- @retval EFI_INVALID_PARAMETER MemoryType is invalid.
-
- @retval EFI_INVALID_PARAMETER HostAddress is NULL.
-
- @retval EFI_UNSUPPORTED Attributes is unsupported. The only legal
- attribute bits are MEMORY_WRITE_COMBINE,
- MEMORY_CACHED, and DUAL_ADDRESS_CYCLE.
-
- @retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoAllocateBuffer (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_ALLOCATE_TYPE Type,
- IN EFI_MEMORY_TYPE MemoryType,
- IN UINTN Pages,
- OUT VOID **HostAddress,
- IN UINT64 Attributes
- );
-
-/**
- Frees memory that was allocated with AllocateBuffer().
-
- The FreeBuffer() function frees memory that was allocated with
- AllocateBuffer().
-
- @param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param Pages The number of pages to free.
-
- @param HostAddress The base system memory address of the allocated range.
-
- @retval EFI_SUCCESS The requested memory pages were freed.
-
- @retval EFI_INVALID_PARAMETER The memory range specified by HostAddress and
- Pages was not allocated with AllocateBuffer().
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoFreeBuffer (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN UINTN Pages,
- OUT VOID *HostAddress
- );
-
-/**
- Flushes all PCI posted write transactions from a PCI host bridge to system
- memory.
-
- The Flush() function flushes any PCI posted write transactions from a PCI
- host bridge to system memory. Posted write transactions are generated by PCI
- bus masters when they perform write transactions to target addresses in
- system memory.
- This function does not flush posted write transactions from any PCI bridges.
- A PCI controller specific action must be taken to guarantee that the posted
- write transactions have been flushed from the PCI controller and from all the
- PCI bridges into the PCI host bridge. This is typically done with a PCI read
- transaction from the PCI controller prior to calling Flush().
-
- @param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @retval EFI_SUCCESS The PCI posted write transactions were flushed
- from the PCI host bridge to system memory.
-
- @retval EFI_DEVICE_ERROR The PCI posted write transactions were not flushed
- from the PCI host bridge due to a hardware error.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoFlush (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This
- );
-
-/**
- Gets the attributes that a PCI root bridge supports setting with
- SetAttributes(), and the attributes that a PCI root bridge is currently
- using.
-
- The GetAttributes() function returns the mask of attributes that this PCI
- root bridge supports and the mask of attributes that the PCI root bridge is
- currently using.
-
- @param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param Supported A pointer to the mask of attributes that this PCI root
- bridge supports setting with SetAttributes().
-
- @param Attributes A pointer to the mask of attributes that this PCI root
- bridge is currently using.
-
-
- @retval EFI_SUCCESS If Supports is not NULL, then the attributes
- that the PCI root bridge supports is returned
- in Supports. If Attributes is not NULL, then
- the attributes that the PCI root bridge is
- currently using is returned in Attributes.
-
- @retval EFI_INVALID_PARAMETER Both Supports and Attributes are NULL.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoGetAttributes (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- OUT UINT64 *Supported,
- OUT UINT64 *Attributes
- );
-
-/**
- Sets attributes for a resource range on a PCI root bridge.
-
- The SetAttributes() function sets the attributes specified in Attributes for
- the PCI root bridge on the resource range specified by ResourceBase and
- ResourceLength. Since the granularity of setting these attributes may vary
- from resource type to resource type, and from platform to platform, the
- actual resource range and the one passed in by the caller may differ. As a
- result, this function may set the attributes specified by Attributes on a
- larger resource range than the caller requested. The actual range is returned
- in ResourceBase and ResourceLength. The caller is responsible for verifying
- that the actual range for which the attributes were set is acceptable.
-
- @param[in] This A pointer to the
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Attributes The mask of attributes to set. If the
- attribute bit MEMORY_WRITE_COMBINE,
- MEMORY_CACHED, or MEMORY_DISABLE is set,
- then the resource range is specified by
- ResourceBase and ResourceLength. If
- MEMORY_WRITE_COMBINE, MEMORY_CACHED, and
- MEMORY_DISABLE are not set, then
- ResourceBase and ResourceLength are ignored,
- and may be NULL.
-
- @param[in, out] ResourceBase A pointer to the base address of the
- resource range to be modified by the
- attributes specified by Attributes.
-
- @param[in, out] ResourceLength A pointer to the length of the resource
- range to be modified by the attributes
- specified by Attributes.
-
- @retval EFI_SUCCESS The current configuration of this PCI root bridge
- was returned in Resources.
-
- @retval EFI_UNSUPPORTED The current configuration of this PCI root bridge
- could not be retrieved.
-
- @retval EFI_INVALID_PARAMETER Invalid pointer of
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
-
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoSetAttributes (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN UINT64 Attributes,
- IN OUT UINT64 *ResourceBase,
- IN OUT UINT64 *ResourceLength
- );
-
-/**
- Retrieves the current resource settings of this PCI root bridge in the form
- of a set of ACPI 2.0 resource descriptors.
-
- There are only two resource descriptor types from the ACPI Specification that
- may be used to describe the current resources allocated to a PCI root bridge.
- These are the QWORD Address Space Descriptor (ACPI 2.0 Section 6.4.3.5.1),
- and the End Tag (ACPI 2.0 Section 6.4.2.8). The QWORD Address Space
- Descriptor can describe memory, I/O, and bus number ranges for dynamic or
- fixed resources. The configuration of a PCI root bridge is described with one
- or more QWORD Address Space Descriptors followed by an End Tag.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[out] Resources A pointer to the ACPI 2.0 resource descriptors that
- describe the current configuration of this PCI root
- bridge. The storage for the ACPI 2.0 resource
- descriptors is allocated by this function. The
- caller must treat the return buffer as read-only
- data, and the buffer must not be freed by the
- caller.
-
- @retval EFI_SUCCESS The current configuration of this PCI root bridge
- was returned in Resources.
-
- @retval EFI_UNSUPPORTED The current configuration of this PCI root bridge
- could not be retrieved.
-
- @retval EFI_INVALID_PARAMETER Invalid pointer of
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoConfiguration (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- OUT VOID **Resources
- );
-
-//
-// Memory Controller Pci Root Bridge Io Module Variables
-//
-EFI_METRONOME_ARCH_PROTOCOL *mMetronome;
-
-//
-// Lookup table for increment values based on transfer widths
-//
-UINT8 mInStride[] = {
- 1, // EfiPciWidthUint8
- 2, // EfiPciWidthUint16
- 4, // EfiPciWidthUint32
- 8, // EfiPciWidthUint64
- 0, // EfiPciWidthFifoUint8
- 0, // EfiPciWidthFifoUint16
- 0, // EfiPciWidthFifoUint32
- 0, // EfiPciWidthFifoUint64
- 1, // EfiPciWidthFillUint8
- 2, // EfiPciWidthFillUint16
- 4, // EfiPciWidthFillUint32
- 8 // EfiPciWidthFillUint64
-};
-
-//
-// Lookup table for increment values based on transfer widths
-//
-UINT8 mOutStride[] = {
- 1, // EfiPciWidthUint8
- 2, // EfiPciWidthUint16
- 4, // EfiPciWidthUint32
- 8, // EfiPciWidthUint64
- 1, // EfiPciWidthFifoUint8
- 2, // EfiPciWidthFifoUint16
- 4, // EfiPciWidthFifoUint32
- 8, // EfiPciWidthFifoUint64
- 0, // EfiPciWidthFillUint8
- 0, // EfiPciWidthFillUint16
- 0, // EfiPciWidthFillUint32
- 0 // EfiPciWidthFillUint64
-};
-
-/**
- Construct the Pci Root Bridge Io protocol
-
- @param Protocol Point to protocol instance
-
- @param HostBridgeHandle Handle of host bridge
-
- @param Attri Attribute of host bridge
-
- @param ResAperture ResourceAperture for host bridge
-
- @retval EFI_SUCCESS Success to initialize the Pci Root Bridge.
-**/
-EFI_STATUS
-RootBridgeConstructor (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *Protocol,
- IN EFI_HANDLE HostBridgeHandle,
- IN UINT64 Attri,
- IN PCI_ROOT_BRIDGE_RESOURCE_APERTURE *ResAperture
- )
-{
- EFI_STATUS Status;
- PCI_ROOT_BRIDGE_INSTANCE *PrivateData;
- PCI_RESOURCE_TYPE Index;
-
- PrivateData = DRIVER_INSTANCE_FROM_PCI_ROOT_BRIDGE_IO_THIS (Protocol);
-
- //
- // The host to pci bridge, the host memory and io addresses are
- // direct mapped to pci addresses, so no need translate, set bases to 0.
- //
- PrivateData->MemBase = ResAperture->MemBase;
- PrivateData->IoBase = ResAperture->IoBase;
-
- //
- // The host bridge only supports 32bit addressing for memory
- // and standard IA32 16bit io
- //
- PrivateData->MemLimit = ResAperture->MemLimit;
- PrivateData->IoLimit = ResAperture->IoLimit;
-
- //
- // Bus Aperture for this Root Bridge (Possible Range)
- //
- PrivateData->BusBase = ResAperture->BusBase;
- PrivateData->BusLimit = ResAperture->BusLimit;
-
- //
- // Specific for this chipset
- //
- for (Index = TypeIo; Index < TypeMax; Index++) {
- PrivateData->ResAllocNode[Index].Type = Index;
- PrivateData->ResAllocNode[Index].Base = 0;
- PrivateData->ResAllocNode[Index].Length = 0;
- PrivateData->ResAllocNode[Index].Status = ResNone;
- }
-
- PrivateData->RootBridgeAttrib = Attri;
-
- PrivateData->Supports = EFI_PCI_ATTRIBUTE_IDE_PRIMARY_IO |
- EFI_PCI_ATTRIBUTE_IDE_SECONDARY_IO |
- EFI_PCI_ATTRIBUTE_ISA_IO_16 |
- EFI_PCI_ATTRIBUTE_ISA_MOTHERBOARD_IO |
- EFI_PCI_ATTRIBUTE_VGA_MEMORY |
- EFI_PCI_ATTRIBUTE_VGA_IO_16 |
- EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO_16;
- PrivateData->Attributes = PrivateData->Supports;
-
- Protocol->ParentHandle = HostBridgeHandle;
-
- Protocol->PollMem = RootBridgeIoPollMem;
- Protocol->PollIo = RootBridgeIoPollIo;
-
- Protocol->Mem.Read = RootBridgeIoMemRead;
- Protocol->Mem.Write = RootBridgeIoMemWrite;
-
- Protocol->Io.Read = RootBridgeIoIoRead;
- Protocol->Io.Write = RootBridgeIoIoWrite;
-
- Protocol->CopyMem = RootBridgeIoCopyMem;
-
- Protocol->Pci.Read = RootBridgeIoPciRead;
- Protocol->Pci.Write = RootBridgeIoPciWrite;
-
- Protocol->Map = RootBridgeIoMap;
- Protocol->Unmap = RootBridgeIoUnmap;
-
- Protocol->AllocateBuffer = RootBridgeIoAllocateBuffer;
- Protocol->FreeBuffer = RootBridgeIoFreeBuffer;
-
- Protocol->Flush = RootBridgeIoFlush;
-
- Protocol->GetAttributes = RootBridgeIoGetAttributes;
- Protocol->SetAttributes = RootBridgeIoSetAttributes;
-
- Protocol->Configuration = RootBridgeIoConfiguration;
-
- Protocol->SegmentNumber = 0;
-
- Status = gBS->LocateProtocol (&gEfiMetronomeArchProtocolGuid, NULL,
- (VOID **)&mMetronome);
- ASSERT_EFI_ERROR (Status);
-
- return EFI_SUCCESS;
-}
-
-/**
- Check parameters for IO,MMIO,PCI read/write services of PCI Root Bridge IO.
-
- The I/O operations are carried out exactly as requested. The caller is
- responsible for satisfying any alignment and I/O width restrictions that a PI
- System on a platform might require. For example on some platforms, width
- requests of EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other
- hand, will be handled by the driver.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] OperationType I/O operation type: IO/MMIO/PCI.
-
- @param[in] Width Signifies the width of the I/O or Memory operation.
-
- @param[in] Address The base address of the I/O operation.
-
- @param[in] Count The number of I/O operations to perform. The number
- of bytes moved is Width size * Count, starting at
- Address.
-
- @param[in] Buffer For read operations, the destination buffer to
- store the results. For write operations, the source
- buffer from which to write data.
-
- @retval EFI_SUCCESS The parameters for this request pass the
- checks.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PI system.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
-
- @retval EFI_UNSUPPORTED The address range specified by Address, Width,
- and Count is not valid for this PI system.
-**/
-EFI_STATUS
-RootBridgeIoCheckParameter (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN OPERATION_TYPE OperationType,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN VOID *Buffer
- )
-{
- PCI_ROOT_BRIDGE_INSTANCE *PrivateData;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS *PciRbAddr;
- UINT64 MaxCount;
- UINT64 Base;
- UINT64 Limit;
-
- //
- // Check to see if Buffer is NULL
- //
- if (Buffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Check to see if Width is in the valid range
- //
- if ((UINT32)Width >= EfiPciWidthMaximum) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // For FIFO type, the target address won't increase during the access,
- // so treat Count as 1
- //
- if (Width >= EfiPciWidthFifoUint8 && Width <= EfiPciWidthFifoUint64) {
- Count = 1;
- }
-
- //
- // Check to see if Width is in the valid range for I/O Port operations
- //
- Width = (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) (Width & 0x03);
- if ((OperationType != MemOperation) && (Width == EfiPciWidthUint64)) {
- ASSERT (FALSE);
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Check to see if Address is aligned
- //
- if ((Address & (UINT64)(mInStride[Width] - 1)) != 0) {
- return EFI_UNSUPPORTED;
- }
-
- PrivateData = DRIVER_INSTANCE_FROM_PCI_ROOT_BRIDGE_IO_THIS (This);
-
- //
- // Check to see if any address associated with this transfer exceeds the
- // maximum allowed address. The maximum address implied by the parameters
- // passed in is Address + Size * Count. If the following condition is met,
- // then the transfer is not supported.
- //
- // Address + Size * Count > Limit + 1
- //
- // Since Limit can be the maximum integer value supported by the CPU and
- // Count can also be the maximum integer value supported by the CPU, this
- // range check must be adjusted to avoid all oveflow conditions.
- //
- // The following form of the range check is equivalent but assumes that
- // Limit is of the form (2^n - 1).
- //
- if (OperationType == IoOperation) {
- Base = PrivateData->IoBase;
- Limit = PrivateData->IoLimit;
- } else if (OperationType == MemOperation) {
- Base = PrivateData->MemBase;
- Limit = PrivateData->MemLimit;
- } else {
- PciRbAddr = (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS*) &Address;
- if (PciRbAddr->Bus < PrivateData->BusBase ||
- PciRbAddr->Bus > PrivateData->BusLimit) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (PciRbAddr->Device > MAX_PCI_DEVICE_NUMBER ||
- PciRbAddr->Function > MAX_PCI_FUNCTION_NUMBER) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (PciRbAddr->ExtendedRegister != 0) {
- Address = PciRbAddr->ExtendedRegister;
- } else {
- Address = PciRbAddr->Register;
- }
- Base = 0;
- Limit = MAX_PCI_REG_ADDRESS;
- }
-
- if (Address < Base) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (Count == 0) {
- if (Address > Limit) {
- return EFI_UNSUPPORTED;
- }
- } else {
- MaxCount = RShiftU64 (Limit, Width);
- if (MaxCount < (Count - 1)) {
- return EFI_UNSUPPORTED;
- }
- if (Address > LShiftU64 (MaxCount - Count + 1, Width)) {
- return EFI_UNSUPPORTED;
- }
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Internal help function for read and write memory space.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Write Switch value for Read or Write.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] UserAddress The address within the PCI configuration space for
- the PCI controller.
-
- @param[in] Count The number of PCI configuration operations to
- perform. Bytes moved is Width size * Count,
- starting at Address.
-
- @param[in, out] UserBuffer For read operations, the destination buffer to
- store the results. For write operations, the
- source buffer to write data from.
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-RootBridgeIoMemRW (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN BOOLEAN Write,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN OUT VOID *Buffer
- )
-{
- EFI_STATUS Status;
- UINT8 InStride;
- UINT8 OutStride;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH OperationWidth;
- UINT8 *Uint8Buffer;
-
- Status = RootBridgeIoCheckParameter (This, MemOperation, Width, Address,
- Count, Buffer);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- InStride = mInStride[Width];
- OutStride = mOutStride[Width];
- OperationWidth = (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) (Width & 0x03);
- for (Uint8Buffer = Buffer;
- Count > 0;
- Address += InStride, Uint8Buffer += OutStride, Count--) {
- if (Write) {
- switch (OperationWidth) {
- case EfiPciWidthUint8:
- MmioWrite8 ((UINTN)Address, *Uint8Buffer);
- break;
- case EfiPciWidthUint16:
- MmioWrite16 ((UINTN)Address, *((UINT16 *)Uint8Buffer));
- break;
- case EfiPciWidthUint32:
- MmioWrite32 ((UINTN)Address, *((UINT32 *)Uint8Buffer));
- break;
- case EfiPciWidthUint64:
- MmioWrite64 ((UINTN)Address, *((UINT64 *)Uint8Buffer));
- break;
- default:
- //
- // The RootBridgeIoCheckParameter call above will ensure that this
- // path is not taken.
- //
- ASSERT (FALSE);
- break;
- }
- } else {
- switch (OperationWidth) {
- case EfiPciWidthUint8:
- *Uint8Buffer = MmioRead8 ((UINTN)Address);
- break;
- case EfiPciWidthUint16:
- *((UINT16 *)Uint8Buffer) = MmioRead16 ((UINTN)Address);
- break;
- case EfiPciWidthUint32:
- *((UINT32 *)Uint8Buffer) = MmioRead32 ((UINTN)Address);
- break;
- case EfiPciWidthUint64:
- *((UINT64 *)Uint8Buffer) = MmioRead64 ((UINTN)Address);
- break;
- default:
- //
- // The RootBridgeIoCheckParameter call above will ensure that this
- // path is not taken.
- //
- ASSERT (FALSE);
- break;
- }
- }
- }
- return EFI_SUCCESS;
-}
-
-/**
- Internal help function for read and write IO space.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Write Switch value for Read or Write.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] UserAddress The address within the PCI configuration space for
- the PCI controller.
-
- @param[in] Count The number of PCI configuration operations to
- perform. Bytes moved is Width size * Count,
- starting at Address.
-
- @param[in, out] UserBuffer For read operations, the destination buffer to
- store the results. For write operations, the
- source buffer to write data from.
-
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-RootBridgeIoIoRW (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN BOOLEAN Write,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN OUT VOID *Buffer
- )
-{
- EFI_STATUS Status;
- UINT8 InStride;
- UINT8 OutStride;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH OperationWidth;
- UINT8 *Uint8Buffer;
-
- Status = RootBridgeIoCheckParameter (This, IoOperation, Width, Address,
- Count, Buffer);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- InStride = mInStride[Width];
- OutStride = mOutStride[Width];
- OperationWidth = (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) (Width & 0x03);
-
-#if defined (MDE_CPU_IA32) || defined (MDE_CPU_X64)
- if (InStride == 0) {
- if (Write) {
- switch (OperationWidth) {
- case EfiPciWidthUint8:
- IoWriteFifo8 ((UINTN) Address, Count, Buffer);
- return EFI_SUCCESS;
- case EfiPciWidthUint16:
- IoWriteFifo16 ((UINTN) Address, Count, Buffer);
- return EFI_SUCCESS;
- case EfiPciWidthUint32:
- IoWriteFifo32 ((UINTN) Address, Count, Buffer);
- return EFI_SUCCESS;
- default:
- //
- // The RootBridgeIoCheckParameter call above will ensure that this
- // path is not taken.
- //
- ASSERT (FALSE);
- break;
- }
- } else {
- switch (OperationWidth) {
- case EfiPciWidthUint8:
- IoReadFifo8 ((UINTN) Address, Count, Buffer);
- return EFI_SUCCESS;
- case EfiPciWidthUint16:
- IoReadFifo16 ((UINTN) Address, Count, Buffer);
- return EFI_SUCCESS;
- case EfiPciWidthUint32:
- IoReadFifo32 ((UINTN) Address, Count, Buffer);
- return EFI_SUCCESS;
- default:
- //
- // The RootBridgeIoCheckParameter call above will ensure that this
- // path is not taken.
- //
- ASSERT (FALSE);
- break;
- }
- }
- }
-#endif
-
- for (Uint8Buffer = Buffer;
- Count > 0;
- Address += InStride, Uint8Buffer += OutStride, Count--) {
- if (Write) {
- switch (OperationWidth) {
- case EfiPciWidthUint8:
- IoWrite8 ((UINTN)Address, *Uint8Buffer);
- break;
- case EfiPciWidthUint16:
- IoWrite16 ((UINTN)Address, *((UINT16 *)Uint8Buffer));
- break;
- case EfiPciWidthUint32:
- IoWrite32 ((UINTN)Address, *((UINT32 *)Uint8Buffer));
- break;
- default:
- //
- // The RootBridgeIoCheckParameter call above will ensure that this
- // path is not taken.
- //
- ASSERT (FALSE);
- break;
- }
- } else {
- switch (OperationWidth) {
- case EfiPciWidthUint8:
- *Uint8Buffer = IoRead8 ((UINTN)Address);
- break;
- case EfiPciWidthUint16:
- *((UINT16 *)Uint8Buffer) = IoRead16 ((UINTN)Address);
- break;
- case EfiPciWidthUint32:
- *((UINT32 *)Uint8Buffer) = IoRead32 ((UINTN)Address);
- break;
- default:
- //
- // The RootBridgeIoCheckParameter call above will ensure that this
- // path is not taken.
- //
- ASSERT (FALSE);
- break;
- }
- }
- }
- return EFI_SUCCESS;
-}
-
-/**
- Internal help function for read and write PCI configuration space.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Write Switch value for Read or Write.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] UserAddress The address within the PCI configuration space for
- the PCI controller.
-
- @param[in] Count The number of PCI configuration operations to
- perform. Bytes moved is Width size * Count,
- starting at Address.
-
- @param[in, out] UserBuffer For read operations, the destination buffer to
- store the results. For write operations, the
- source buffer to write data from.
-
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-RootBridgeIoPciRW (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN BOOLEAN Write,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN OUT VOID *Buffer
- )
-{
- EFI_STATUS Status;
- UINT8 InStride;
- UINT8 OutStride;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH OperationWidth;
- UINT8 *Uint8Buffer;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS *PciRbAddr;
- UINTN PcieRegAddr;
-
- Status = RootBridgeIoCheckParameter (This, PciOperation, Width, Address,
- Count, Buffer);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- PciRbAddr = (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS*) &Address;
-
- PcieRegAddr = (UINTN) PCI_LIB_ADDRESS (
- PciRbAddr->Bus,
- PciRbAddr->Device,
- PciRbAddr->Function,
- (PciRbAddr->ExtendedRegister != 0) ? \
- PciRbAddr->ExtendedRegister :
- PciRbAddr->Register
- );
-
- InStride = mInStride[Width];
- OutStride = mOutStride[Width];
- OperationWidth = (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) (Width & 0x03);
- for (Uint8Buffer = Buffer;
- Count > 0;
- PcieRegAddr += InStride, Uint8Buffer += OutStride, Count--) {
- if (Write) {
- switch (OperationWidth) {
- case EfiPciWidthUint8:
- PciWrite8 (PcieRegAddr, *Uint8Buffer);
- break;
- case EfiPciWidthUint16:
- PciWrite16 (PcieRegAddr, *((UINT16 *)Uint8Buffer));
- break;
- case EfiPciWidthUint32:
- PciWrite32 (PcieRegAddr, *((UINT32 *)Uint8Buffer));
- break;
- default:
- //
- // The RootBridgeIoCheckParameter call above will ensure that this
- // path is not taken.
- //
- ASSERT (FALSE);
- break;
- }
- } else {
- switch (OperationWidth) {
- case EfiPciWidthUint8:
- *Uint8Buffer = PciRead8 (PcieRegAddr);
- break;
- case EfiPciWidthUint16:
- *((UINT16 *)Uint8Buffer) = PciRead16 (PcieRegAddr);
- break;
- case EfiPciWidthUint32:
- *((UINT32 *)Uint8Buffer) = PciRead32 (PcieRegAddr);
- break;
- default:
- //
- // The RootBridgeIoCheckParameter call above will ensure that this
- // path is not taken.
- //
- ASSERT (FALSE);
- break;
- }
- }
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Polls an address in memory mapped I/O space until an exit condition is met,
- or a timeout occurs.
-
- This function provides a standard way to poll a PCI memory location. A PCI
- memory read operation is performed at the PCI memory address specified by
- Address for the width specified by Width. The result of this PCI memory read
- operation is stored in Result. This PCI memory read operation is repeated
- until either a timeout of Delay 100 ns units has expired, or (Result & Mask)
- is equal to Value.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] Address The base address of the memory operations. The caller
- is responsible for aligning Address if required.
-
- @param[in] Mask Mask used for the polling criteria. Bytes above Width
- in Mask are ignored. The bits in the bytes below Width
- which are zero in Mask are ignored when polling the
- memory address.
-
- @param[in] Value The comparison value used for the polling exit
- criteria.
-
- @param[in] Delay The number of 100 ns units to poll. Note that timer
- available may be of poorer granularity.
-
- @param[out] Result Pointer to the last value read from the memory
- location.
-
- @retval EFI_SUCCESS The last data returned from the access matched
- the poll exit criteria.
-
- @retval EFI_INVALID_PARAMETER Width is invalid.
-
- @retval EFI_INVALID_PARAMETER Result is NULL.
-
- @retval EFI_TIMEOUT Delay expired before a match occurred.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoPollMem (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINT64 Mask,
- IN UINT64 Value,
- IN UINT64 Delay,
- OUT UINT64 *Result
- )
-{
- EFI_STATUS Status;
- UINT64 NumberOfTicks;
- UINT32 Remainder;
-
- if (Result == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if ((UINT32)Width > EfiPciWidthUint64) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // No matter what, always do a single poll.
- //
- Status = This->Mem.Read (This, Width, Address, 1, Result);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if ((*Result & Mask) == Value) {
- return EFI_SUCCESS;
- }
-
- if (Delay == 0) {
- return EFI_SUCCESS;
-
- } else {
-
- //
- // Determine the proper # of metronome ticks to wait for polling the
- // location. The nuber of ticks is Roundup (Delay /
- // mMetronome->TickPeriod)+1
- // The "+1" to account for the possibility of the first tick being short
- // because we started in the middle of a tick.
- //
- // BugBug: overriding mMetronome->TickPeriod with UINT32 until Metronome
- // protocol definition is updated.
- //
- NumberOfTicks = DivU64x32Remainder (Delay, (UINT32) mMetronome->TickPeriod,
- &Remainder);
- if (Remainder != 0) {
- NumberOfTicks += 1;
- }
- NumberOfTicks += 1;
-
- while (NumberOfTicks != 0) {
-
- mMetronome->WaitForTick (mMetronome, 1);
-
- Status = This->Mem.Read (This, Width, Address, 1, Result);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- if ((*Result & Mask) == Value) {
- return EFI_SUCCESS;
- }
-
- NumberOfTicks -= 1;
- }
- }
- return EFI_TIMEOUT;
-}
-
-/**
- Reads from the I/O space of a PCI Root Bridge. Returns when either the
- polling exit criteria is satisfied or after a defined duration.
-
- This function provides a standard way to poll a PCI I/O location. A PCI I/O
- read operation is performed at the PCI I/O address specified by Address for
- the width specified by Width.
- The result of this PCI I/O read operation is stored in Result. This PCI I/O
- read operation is repeated until either a timeout of Delay 100 ns units has
- expired, or (Result & Mask) is equal to Value.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the I/O operations.
-
- @param[in] Address The base address of the I/O operations. The caller is
- responsible for aligning Address if required.
-
- @param[in] Mask Mask used for the polling criteria. Bytes above Width in
- Mask are ignored. The bits in the bytes below Width
- which are zero in Mask are ignored when polling the I/O
- address.
-
- @param[in] Value The comparison value used for the polling exit criteria.
-
- @param[in] Delay The number of 100 ns units to poll. Note that timer
- available may be of poorer granularity.
-
- @param[out] Result Pointer to the last value read from the memory location.
-
- @retval EFI_SUCCESS The last data returned from the access matched
- the poll exit criteria.
-
- @retval EFI_INVALID_PARAMETER Width is invalid.
-
- @retval EFI_INVALID_PARAMETER Result is NULL.
-
- @retval EFI_TIMEOUT Delay expired before a match occurred.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoPollIo (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINT64 Mask,
- IN UINT64 Value,
- IN UINT64 Delay,
- OUT UINT64 *Result
- )
-{
- EFI_STATUS Status;
- UINT64 NumberOfTicks;
- UINT32 Remainder;
-
- //
- // No matter what, always do a single poll.
- //
-
- if (Result == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if ((UINT32)Width > EfiPciWidthUint64) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = This->Io.Read (This, Width, Address, 1, Result);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if ((*Result & Mask) == Value) {
- return EFI_SUCCESS;
- }
-
- if (Delay == 0) {
- return EFI_SUCCESS;
-
- } else {
-
- //
- // Determine the proper # of metronome ticks to wait for polling the
- // location. The number of ticks is Roundup (Delay /
- // mMetronome->TickPeriod)+1
- // The "+1" to account for the possibility of the first tick being short
- // because we started in the middle of a tick.
- //
- NumberOfTicks = DivU64x32Remainder (Delay, (UINT32)mMetronome->TickPeriod,
- &Remainder);
- if (Remainder != 0) {
- NumberOfTicks += 1;
- }
- NumberOfTicks += 1;
-
- while (NumberOfTicks != 0) {
-
- mMetronome->WaitForTick (mMetronome, 1);
-
- Status = This->Io.Read (This, Width, Address, 1, Result);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- if ((*Result & Mask) == Value) {
- return EFI_SUCCESS;
- }
-
- NumberOfTicks -= 1;
- }
- }
- return EFI_TIMEOUT;
-}
-
-/**
- Enables a PCI driver to access PCI controller registers in the PCI root
- bridge memory space.
-
- The Mem.Read(), and Mem.Write() functions enable a driver to access PCI
- controller registers in the PCI root bridge memory space.
- The memory operations are carried out exactly as requested. The caller is
- responsible for satisfying any alignment and memory width restrictions that a
- PCI Root Bridge on a platform might require.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operation.
-
- @param[in] Address The base address of the memory operation. The caller
- is responsible for aligning the Address if required.
-
- @param[in] Count The number of memory operations to perform. Bytes
- moved is Width size * Count, starting at Address.
-
- @param[out] Buffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- to write data from.
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoMemRead (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- OUT VOID *Buffer
- )
-{
- return RootBridgeIoMemRW (This, FALSE, Width, Address, Count, Buffer);
-}
-
-/**
- Enables a PCI driver to access PCI controller registers in the PCI root
- bridge memory space.
-
- The Mem.Read(), and Mem.Write() functions enable a driver to access PCI
- controller registers in the PCI root bridge memory space.
- The memory operations are carried out exactly as requested. The caller is
- responsible for satisfying any alignment and memory width restrictions that a
- PCI Root Bridge on a platform might require.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operation.
-
- @param[in] Address The base address of the memory operation. The caller
- is responsible for aligning the Address if required.
-
- @param[in] Count The number of memory operations to perform. Bytes
- moved is Width size * Count, starting at Address.
-
- @param[in] Buffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- to write data from.
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoMemWrite (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN VOID *Buffer
- )
-{
- return RootBridgeIoMemRW (This, TRUE, Width, Address, Count, Buffer);
-}
-
-/**
- Enables a PCI driver to access PCI controller registers in the PCI root
- bridge I/O space.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] Address The base address of the I/O operation. The caller is
- responsible for aligning the Address if required.
-
- @param[in] Count The number of I/O operations to perform. Bytes moved
- is Width size * Count, starting at Address.
-
- @param[out] Buffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- to write data from.
-
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoIoRead (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- OUT VOID *Buffer
- )
-{
- return RootBridgeIoIoRW (This, FALSE, Width, Address, Count, Buffer);
-}
-
-/**
- Enables a PCI driver to access PCI controller registers in the PCI root
- bridge I/O space.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] Address The base address of the I/O operation. The caller is
- responsible for aligning the Address if required.
-
- @param[in] Count The number of I/O operations to perform. Bytes moved
- is Width size * Count, starting at Address.
-
- @param[in] Buffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- to write data from.
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoIoWrite (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN VOID *Buffer
- )
-{
- return RootBridgeIoIoRW (This, TRUE, Width, Address, Count, Buffer);
-}
-
-/**
- Enables a PCI driver to copy one region of PCI root bridge memory space to
- another region of PCI root bridge memory space.
-
- The CopyMem() function enables a PCI driver to copy one region of PCI root
- bridge memory space to another region of PCI root bridge memory space. This
- is especially useful for video scroll operation on a memory mapped video
- buffer.
- The memory operations are carried out exactly as requested. The caller is
- responsible for satisfying any alignment and memory width restrictions that a
- PCI root bridge on a platform might require.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
- instance.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] DestAddress The destination address of the memory operation. The
- caller is responsible for aligning the DestAddress if
- required.
-
- @param[in] SrcAddress The source address of the memory operation. The caller
- is responsible for aligning the SrcAddress if
- required.
-
- @param[in] Count The number of memory operations to perform. Bytes
- moved is Width size * Count, starting at DestAddress
- and SrcAddress.
-
- @retval EFI_SUCCESS The data was copied from one memory region
- to another memory region.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoCopyMem (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 DestAddress,
- IN UINT64 SrcAddress,
- IN UINTN Count
- )
-{
- EFI_STATUS Status;
- BOOLEAN Direction;
- UINTN Stride;
- UINTN Index;
- UINT64 Result;
-
- if ((UINT32)Width > EfiPciWidthUint64) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (DestAddress == SrcAddress) {
- return EFI_SUCCESS;
- }
-
- Stride = (UINTN)(1 << Width);
-
- Direction = TRUE;
- if ((DestAddress > SrcAddress) &&
- (DestAddress < (SrcAddress + Count * Stride))) {
- Direction = FALSE;
- SrcAddress = SrcAddress + (Count-1) * Stride;
- DestAddress = DestAddress + (Count-1) * Stride;
- }
-
- for (Index = 0;Index < Count;Index++) {
- Status = RootBridgeIoMemRead (
- This,
- Width,
- SrcAddress,
- 1,
- &Result
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- Status = RootBridgeIoMemWrite (
- This,
- Width,
- DestAddress,
- 1,
- &Result
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if (Direction) {
- SrcAddress += Stride;
- DestAddress += Stride;
- } else {
- SrcAddress -= Stride;
- DestAddress -= Stride;
- }
- }
- return EFI_SUCCESS;
-}
-
-/**
- Enables a PCI driver to access PCI controller registers in a PCI root
- bridge's configuration space.
-
- The Pci.Read() and Pci.Write() functions enable a driver to access PCI
- configuration registers for a PCI controller.
- The PCI Configuration operations are carried out exactly as requested. The
- caller is responsible for any alignment and PCI configuration width issues
- that a PCI Root Bridge on a platform might require.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] Address The address within the PCI configuration space for the
- PCI controller.
-
- @param[in] Count The number of PCI configuration operations to perform.
- Bytes moved is Width size * Count, starting at
- Address.
-
- @param[out] Buffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- to write data from.
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoPciRead (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- OUT VOID *Buffer
- )
-{
- return RootBridgeIoPciRW (This, FALSE, Width, Address, Count, Buffer);
-}
-
-/**
- Enables a PCI driver to access PCI controller registers in a PCI root
- bridge's configuration space.
-
- The Pci.Read() and Pci.Write() functions enable a driver to access PCI
- configuration registers for a PCI controller.
- The PCI Configuration operations are carried out exactly as requested. The
- caller is responsible for any alignment and PCI configuration width issues
- that a PCI Root Bridge on a platform might require.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Width Signifies the width of the memory operations.
-
- @param[in] Address The address within the PCI configuration space for the
- PCI controller.
-
- @param[in] Count The number of PCI configuration operations to perform.
- Bytes moved is Width size * Count, starting at
- Address.
-
- @param[in] Buffer For read operations, the destination buffer to store
- the results. For write operations, the source buffer
- to write data from.
-
- @retval EFI_SUCCESS The data was read from or written to the PCI
- root bridge.
-
- @retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.
-
- @retval EFI_INVALID_PARAMETER Buffer is NULL.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoPciWrite (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
- IN UINT64 Address,
- IN UINTN Count,
- IN VOID *Buffer
- )
-{
- return RootBridgeIoPciRW (This, TRUE, Width, Address, Count, Buffer);
-}
-
-/**
- Provides the PCI controller-specific addresses required to access system
- memory from a DMA bus master.
-
- The Map() function provides the PCI controller specific addresses needed to
- access system memory. This function is used to map system memory for PCI bus
- master DMA accesses.
-
- @param[in] This A pointer to the
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Operation Indicates if the bus master is going to read
- or write to system memory.
-
- @param[in] HostAddress The system memory address to map to the PCI
- controller.
-
- @param[in, out] NumberOfBytes On input the number of bytes to map. On
- output the number of bytes that were mapped.
-
- @param[out] DeviceAddress The resulting map address for the bus master
- PCI controller to use to access the system
- memory's HostAddress.
-
- @param[out] Mapping The value to pass to Unmap() when the bus
- master DMA operation is complete.
-
- @retval EFI_SUCCESS The range was mapped for the returned
- NumberOfBytes.
-
- @retval EFI_INVALID_PARAMETER Operation is invalid.
-
- @retval EFI_INVALID_PARAMETER HostAddress is NULL.
-
- @retval EFI_INVALID_PARAMETER NumberOfBytes is NULL.
-
- @retval EFI_INVALID_PARAMETER DeviceAddress is NULL.
-
- @retval EFI_INVALID_PARAMETER Mapping is NULL.
-
- @retval EFI_UNSUPPORTED The HostAddress cannot be mapped as a common
- buffer.
-
- @retval EFI_DEVICE_ERROR The system hardware could not map the
- requested address.
-
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
- lack of resources.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoMap (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_OPERATION Operation,
- IN VOID *HostAddress,
- IN OUT UINTN *NumberOfBytes,
- OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
- OUT VOID **Mapping
- )
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS PhysicalAddress;
- MAP_INFO *MapInfo;
-
- if (HostAddress == NULL || NumberOfBytes == NULL || DeviceAddress == NULL ||
- Mapping == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Initialize the return values to their defaults
- //
- *Mapping = NULL;
-
- //
- // Make sure that Operation is valid
- //
- if ((UINT32)Operation >= EfiPciOperationMaximum) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Most PCAT like chipsets can not handle performing DMA above 4GB.
- // If any part of the DMA transfer being mapped is above 4GB, then
- // map the DMA transfer to a buffer below 4GB.
- //
- PhysicalAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) HostAddress;
- if ((PhysicalAddress + *NumberOfBytes) > 0x100000000ULL) {
-
- //
- // Common Buffer operations can not be remapped. If the common buffer
- // if above 4GB, then it is not possible to generate a mapping, so return
- // an error.
- //
- if (Operation == EfiPciOperationBusMasterCommonBuffer ||
- Operation == EfiPciOperationBusMasterCommonBuffer64) {
- return EFI_UNSUPPORTED;
- }
-
- //
- // Allocate a MAP_INFO structure to remember the mapping when Unmap() is
- // called later.
- //
- Status = gBS->AllocatePool (
- EfiBootServicesData,
- sizeof(MAP_INFO),
- (VOID **)&MapInfo
- );
- if (EFI_ERROR (Status)) {
- *NumberOfBytes = 0;
- return Status;
- }
-
- //
- // Return a pointer to the MAP_INFO structure in Mapping
- //
- *Mapping = MapInfo;
-
- //
- // Initialize the MAP_INFO structure
- //
- MapInfo->Operation = Operation;
- MapInfo->NumberOfBytes = *NumberOfBytes;
- MapInfo->NumberOfPages = EFI_SIZE_TO_PAGES(*NumberOfBytes);
- MapInfo->HostAddress = PhysicalAddress;
- MapInfo->MappedHostAddress = 0x00000000ffffffff;
-
- //
- // Allocate a buffer below 4GB to map the transfer to.
- //
- Status = gBS->AllocatePages (
- AllocateMaxAddress,
- EfiBootServicesData,
- MapInfo->NumberOfPages,
- &MapInfo->MappedHostAddress
- );
- if (EFI_ERROR (Status)) {
- gBS->FreePool (MapInfo);
- *NumberOfBytes = 0;
- return Status;
- }
-
- //
- // If this is a read operation from the Bus Master's point of view,
- // then copy the contents of the real buffer into the mapped buffer
- // so the Bus Master can read the contents of the real buffer.
- //
- if (Operation == EfiPciOperationBusMasterRead ||
- Operation == EfiPciOperationBusMasterRead64) {
- CopyMem (
- (VOID *)(UINTN)MapInfo->MappedHostAddress,
- (VOID *)(UINTN)MapInfo->HostAddress,
- MapInfo->NumberOfBytes
- );
- }
-
- //
- // The DeviceAddress is the address of the maped buffer below 4GB
- //
- *DeviceAddress = MapInfo->MappedHostAddress;
- } else {
- //
- // The transfer is below 4GB, so the DeviceAddress is simply the
- // HostAddress
- //
- *DeviceAddress = PhysicalAddress;
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Completes the Map() operation and releases any corresponding resources.
-
- The Unmap() function completes the Map() operation and releases any
- corresponding resources.
- If the operation was an EfiPciOperationBusMasterWrite or
- EfiPciOperationBusMasterWrite64, the data is committed to the target system
- memory.
- Any resources used for the mapping are freed.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Mapping The mapping value returned from Map().
-
- @retval EFI_SUCCESS The range was unmapped.
-
- @retval EFI_INVALID_PARAMETER Mapping is not a value that was returned by
- Map().
-
- @retval EFI_DEVICE_ERROR The data was not committed to the target
- system memory.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoUnmap (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN VOID *Mapping
- )
-{
- MAP_INFO *MapInfo;
-
- //
- // See if the Map() operation associated with this Unmap() required a mapping
- // buffer. If a mapping buffer was not required, then this function simply
- // returns EFI_SUCCESS.
- //
- if (Mapping != NULL) {
- //
- // Get the MAP_INFO structure from Mapping
- //
- MapInfo = (MAP_INFO *)Mapping;
-
- //
- // If this is a write operation from the Bus Master's point of view,
- // then copy the contents of the mapped buffer into the real buffer
- // so the processor can read the contents of the real buffer.
- //
- if (MapInfo->Operation == EfiPciOperationBusMasterWrite ||
- MapInfo->Operation == EfiPciOperationBusMasterWrite64) {
- CopyMem (
- (VOID *)(UINTN)MapInfo->HostAddress,
- (VOID *)(UINTN)MapInfo->MappedHostAddress,
- MapInfo->NumberOfBytes
- );
- }
-
- //
- // Free the mapped buffer and the MAP_INFO structure.
- //
- gBS->FreePages (MapInfo->MappedHostAddress, MapInfo->NumberOfPages);
- gBS->FreePool (Mapping);
- }
- return EFI_SUCCESS;
-}
-
-/**
- Allocates pages that are suitable for an EfiPciOperationBusMasterCommonBuffer
- or EfiPciOperationBusMasterCommonBuffer64 mapping.
-
- @param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param Type This parameter is not used and must be ignored.
-
- @param MemoryType The type of memory to allocate, EfiBootServicesData or
- EfiRuntimeServicesData.
-
- @param Pages The number of pages to allocate.
-
- @param HostAddress A pointer to store the base system memory address of the
- allocated range.
-
- @param Attributes The requested bit mask of attributes for the allocated
- range. Only the attributes
- EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE,
- EFI_PCI_ATTRIBUTE_MEMORY_CACHED, and
- EFI_PCI_ATTRIBUTE_DUAL_ADDRESS_CYCLE may be used with this
- function.
-
- @retval EFI_SUCCESS The requested memory pages were allocated.
-
- @retval EFI_INVALID_PARAMETER MemoryType is invalid.
-
- @retval EFI_INVALID_PARAMETER HostAddress is NULL.
-
- @retval EFI_UNSUPPORTED Attributes is unsupported. The only legal
- attribute bits are MEMORY_WRITE_COMBINE,
- MEMORY_CACHED, and DUAL_ADDRESS_CYCLE.
-
- @retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoAllocateBuffer (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN EFI_ALLOCATE_TYPE Type,
- IN EFI_MEMORY_TYPE MemoryType,
- IN UINTN Pages,
- OUT VOID **HostAddress,
- IN UINT64 Attributes
- )
-{
- EFI_STATUS Status;
- EFI_PHYSICAL_ADDRESS PhysicalAddress;
-
- //
- // Validate Attributes
- //
- if ((Attributes & EFI_PCI_ATTRIBUTE_INVALID_FOR_ALLOCATE_BUFFER) != 0) {
- return EFI_UNSUPPORTED;
- }
-
- //
- // Check for invalid inputs
- //
- if (HostAddress == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // The only valid memory types are EfiBootServicesData and
- // EfiRuntimeServicesData
- //
- if (MemoryType != EfiBootServicesData &&
- MemoryType != EfiRuntimeServicesData) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Limit allocations to memory below 4GB
- //
- PhysicalAddress = (EFI_PHYSICAL_ADDRESS)(0xffffffff);
-
- Status = gBS->AllocatePages (AllocateMaxAddress, MemoryType, Pages,
- &PhysicalAddress);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- *HostAddress = (VOID *)(UINTN)PhysicalAddress;
-
- return EFI_SUCCESS;
-}
-
-/**
- Frees memory that was allocated with AllocateBuffer().
-
- The FreeBuffer() function frees memory that was allocated with
- AllocateBuffer().
-
- @param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param Pages The number of pages to free.
-
- @param HostAddress The base system memory address of the allocated range.
-
- @retval EFI_SUCCESS The requested memory pages were freed.
-
- @retval EFI_INVALID_PARAMETER The memory range specified by HostAddress and
- Pages was not allocated with AllocateBuffer().
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoFreeBuffer (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN UINTN Pages,
- OUT VOID *HostAddress
- )
-{
- return gBS->FreePages ((EFI_PHYSICAL_ADDRESS) (UINTN) HostAddress, Pages);
-}
-
-/**
- Flushes all PCI posted write transactions from a PCI host bridge to system
- memory.
-
- The Flush() function flushes any PCI posted write transactions from a PCI
- host bridge to system memory. Posted write transactions are generated by PCI
- bus masters when they perform write transactions to target addresses in
- system memory.
- This function does not flush posted write transactions from any PCI bridges.
- A PCI controller specific action must be taken to guarantee that the posted
- write transactions have been flushed from the PCI controller and from all the
- PCI bridges into the PCI host bridge. This is typically done with a PCI read
- transaction from the PCI controller prior to calling Flush().
-
- @param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @retval EFI_SUCCESS The PCI posted write transactions were flushed
- from the PCI host bridge to system memory.
-
- @retval EFI_DEVICE_ERROR The PCI posted write transactions were not flushed
- from the PCI host bridge due to a hardware error.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoFlush (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This
- )
-{
- //
- // not supported yet
- //
- return EFI_SUCCESS;
-}
-
-/**
- Gets the attributes that a PCI root bridge supports setting with
- SetAttributes(), and the attributes that a PCI root bridge is currently
- using.
-
- The GetAttributes() function returns the mask of attributes that this PCI
- root bridge supports and the mask of attributes that the PCI root bridge is
- currently using.
-
- @param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param Supported A pointer to the mask of attributes that this PCI root
- bridge supports setting with SetAttributes().
-
- @param Attributes A pointer to the mask of attributes that this PCI root
- bridge is currently using.
-
- @retval EFI_SUCCESS If Supports is not NULL, then the attributes
- that the PCI root bridge supports is returned
- in Supports. If Attributes is not NULL, then
- the attributes that the PCI root bridge is
- currently using is returned in Attributes.
-
- @retval EFI_INVALID_PARAMETER Both Supports and Attributes are NULL.
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoGetAttributes (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- OUT UINT64 *Supported,
- OUT UINT64 *Attributes
- )
-{
- PCI_ROOT_BRIDGE_INSTANCE *PrivateData;
-
- PrivateData = DRIVER_INSTANCE_FROM_PCI_ROOT_BRIDGE_IO_THIS(This);
-
- if (Attributes == NULL && Supported == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Set the return value for Supported and Attributes
- //
- if (Supported != NULL) {
- *Supported = PrivateData->Supports;
- }
-
- if (Attributes != NULL) {
- *Attributes = PrivateData->Attributes;
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Sets attributes for a resource range on a PCI root bridge.
-
- The SetAttributes() function sets the attributes specified in Attributes for
- the PCI root bridge on the resource range specified by ResourceBase and
- ResourceLength. Since the granularity of setting these attributes may vary
- from resource type to resource type, and from platform to platform, the
- actual resource range and the one passed in by the caller may differ. As a
- result, this function may set the attributes specified by Attributes on a
- larger resource range than the caller requested. The actual range is returned
- in ResourceBase and ResourceLength. The caller is responsible for verifying
- that the actual range for which the attributes were set is acceptable.
-
- @param[in] This A pointer to the
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[in] Attributes The mask of attributes to set. If the
- attribute bit MEMORY_WRITE_COMBINE,
- MEMORY_CACHED, or MEMORY_DISABLE is set,
- then the resource range is specified by
- ResourceBase and ResourceLength. If
- MEMORY_WRITE_COMBINE, MEMORY_CACHED, and
- MEMORY_DISABLE are not set, then
- ResourceBase and ResourceLength are ignored,
- and may be NULL.
-
- @param[in, out] ResourceBase A pointer to the base address of the
- resource range to be modified by the
- attributes specified by Attributes.
-
- @param[in, out] ResourceLength A pointer to the length of the resource
- range to be modified by the attributes
- specified by Attributes.
-
- @retval EFI_SUCCESS The current configuration of this PCI root bridge
- was returned in Resources.
-
- @retval EFI_UNSUPPORTED The current configuration of this PCI root bridge
- could not be retrieved.
-
- @retval EFI_INVALID_PARAMETER Invalid pointer of
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoSetAttributes (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- IN UINT64 Attributes,
- IN OUT UINT64 *ResourceBase,
- IN OUT UINT64 *ResourceLength
- )
-{
- PCI_ROOT_BRIDGE_INSTANCE *PrivateData;
-
- PrivateData = DRIVER_INSTANCE_FROM_PCI_ROOT_BRIDGE_IO_THIS(This);
-
- if (Attributes != 0) {
- if ((Attributes & (~(PrivateData->Supports))) != 0) {
- return EFI_UNSUPPORTED;
- }
- }
-
- //
- // This is a generic driver for a PC-AT class system. It does not have any
- // chipset specific knowlegde, so none of the attributes can be set or
- // cleared. Any attempt to set attribute that are already set will succeed,
- // and any attempt to set an attribute that is not supported will fail.
- //
- if (Attributes & (~PrivateData->Attributes)) {
- return EFI_UNSUPPORTED;
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Retrieves the current resource settings of this PCI root bridge in the form
- of a set of ACPI 2.0 resource descriptors.
-
- There are only two resource descriptor types from the ACPI Specification that
- may be used to describe the current resources allocated to a PCI root bridge.
- These are the QWORD Address Space Descriptor (ACPI 2.0 Section 6.4.3.5.1),
- and the End Tag (ACPI 2.0 Section 6.4.2.8). The QWORD Address Space
- Descriptor can describe memory, I/O, and bus number ranges for dynamic or
- fixed resources. The configuration of a PCI root bridge is described with one
- or more QWORD Address Space Descriptors followed by an End Tag.
-
- @param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
-
- @param[out] Resources A pointer to the ACPI 2.0 resource descriptors that
- describe the current configuration of this PCI root
- bridge. The storage for the ACPI 2.0 resource
- descriptors is allocated by this function. The
- caller must treat the return buffer as read-only
- data, and the buffer must not be freed by the
- caller.
-
- @retval EFI_SUCCESS The current configuration of this PCI root bridge
- was returned in Resources.
-
- @retval EFI_UNSUPPORTED The current configuration of this PCI root bridge
- could not be retrieved.
-
- @retval EFI_INVALID_PARAMETER Invalid pointer of
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
-**/
-EFI_STATUS
-EFIAPI
-RootBridgeIoConfiguration (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
- OUT VOID **Resources
- )
-{
- PCI_ROOT_BRIDGE_INSTANCE *PrivateData;
- UINTN Index;
-
- PrivateData = DRIVER_INSTANCE_FROM_PCI_ROOT_BRIDGE_IO_THIS (This);
-
- for (Index = 0; Index < TypeMax; Index++) {
- if (PrivateData->ResAllocNode[Index].Status == ResAllocated) {
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Desc;
-
- Desc = &Configuration.SpaceDesp[Index];
- Desc->AddrRangeMin = PrivateData->ResAllocNode[Index].Base;
- Desc->AddrRangeMax = PrivateData->ResAllocNode[Index].Base +
- PrivateData->ResAllocNode[Index].Length - 1;
- Desc->AddrLen = PrivateData->ResAllocNode[Index].Length;
- }
- }
-
- *Resources = &Configuration;
- return EFI_SUCCESS;
-}
-
diff --git a/PcAtChipsetPkg/PciHostBridgeDxe/X64/IoFifo.S b/PcAtChipsetPkg/PciHostBridgeDxe/X64/IoFifo.S deleted file mode 100644 index decb382028..0000000000 --- a/PcAtChipsetPkg/PciHostBridgeDxe/X64/IoFifo.S +++ /dev/null @@ -1,122 +0,0 @@ -#------------------------------------------------------------------------------
-#
-# Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
-#
-# This program and the accompanying materials are licensed and made available
-# under the terms and conditions of the BSD License which accompanies this
-# distribution. The full text of the license may be found at
-# 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.
-#
-#------------------------------------------------------------------------------
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# IoReadFifo8 (
-# IN UINTN Port, // rcx
-# IN UINTN Count, // rdx
-# IN VOID *Buffer // r8
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(IoReadFifo8)
-ASM_PFX(IoReadFifo8):
- cld
- xchg %rcx, %rdx
- xchg %r8, %rdi # rdi: buffer address; r8: save register
-rep insb
- mov %r8, %rdi # restore rdi
- ret
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# IoReadFifo16 (
-# IN UINTN Port, // rcx
-# IN UINTN Count, // rdx
-# IN VOID *Buffer // r8
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(IoReadFifo16)
-ASM_PFX(IoReadFifo16):
- cld
- xchg %rcx, %rdx
- xchg %r8, %rdi # rdi: buffer address; r8: save register
-rep insw
- mov %r8, %rdi # restore rdi
- ret
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# IoReadFifo32 (
-# IN UINTN Port, // rcx
-# IN UINTN Count, // rdx
-# IN VOID *Buffer // r8
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(IoReadFifo32)
-ASM_PFX(IoReadFifo32):
- cld
- xchg %rcx, %rdx
- xchg %r8, %rdi # rdi: buffer address; r8: save register
-rep insl
- mov %r8, %rdi # restore rdi
- ret
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# IoWriteFifo8 (
-# IN UINTN Port, // rcx
-# IN UINTN Count, // rdx
-# IN VOID *Buffer // r8
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(IoWriteFifo8)
-ASM_PFX(IoWriteFifo8):
- cld
- xchg %rcx, %rdx
- xchg %r8, %rsi # rsi: buffer address; r8: save register
-rep outsb
- mov %r8, %rsi # restore rsi
- ret
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# IoWriteFifo16 (
-# IN UINTN Port, // rcx
-# IN UINTN Count, // rdx
-# IN VOID *Buffer // r8
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(IoWriteFifo16)
-ASM_PFX(IoWriteFifo16):
- cld
- xchg %rcx, %rdx
- xchg %r8, %rsi # rsi: buffer address; r8: save register
-rep outsw
- mov %r8, %rsi # restore rsi
- ret
-
-#------------------------------------------------------------------------------
-# VOID
-# EFIAPI
-# IoWriteFifo32 (
-# IN UINTN Port, // rcx
-# IN UINTN Count, // rdx
-# IN VOID *Buffer // r8
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(IoWriteFifo32)
-ASM_PFX(IoWriteFifo32):
- cld
- xchg %rcx, %rdx
- xchg %r8, %rsi # rsi: buffer address; r8: save register
-rep outsl
- mov %r8, %rsi # restore rsi
- ret
-
diff --git a/PcAtChipsetPkg/PciHostBridgeDxe/X64/IoFifo.asm b/PcAtChipsetPkg/PciHostBridgeDxe/X64/IoFifo.asm deleted file mode 100644 index 1a3f0ef2ca..0000000000 --- a/PcAtChipsetPkg/PciHostBridgeDxe/X64/IoFifo.asm +++ /dev/null @@ -1,126 +0,0 @@ -;------------------------------------------------------------------------------
-;
-; Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
-;
-; This program and the accompanying materials are licensed and made available
-; under the terms and conditions of the BSD License which accompanies this
-; distribution. The full text of the license may be found at
-; 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.
-;
-;------------------------------------------------------------------------------
-
- .code
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; IoReadFifo8 (
-; IN UINTN Port, // rcx
-; IN UINTN Size, // rdx
-; IN VOID *Buffer // r8
-; );
-;------------------------------------------------------------------------------
-IoReadFifo8 PROC
- cld
- xchg rcx, rdx
- xchg rdi, r8 ; rdi: buffer address; r8: save rdi
-rep insb
- mov rdi, r8 ; restore rdi
- ret
-IoReadFifo8 ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; IoReadFifo16 (
-; IN UINTN Port, // rcx
-; IN UINTN Size, // rdx
-; IN VOID *Buffer // r8
-; );
-;------------------------------------------------------------------------------
-IoReadFifo16 PROC
- cld
- xchg rcx, rdx
- xchg rdi, r8 ; rdi: buffer address; r8: save rdi
-rep insw
- mov rdi, r8 ; restore rdi
- ret
-IoReadFifo16 ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; IoReadFifo32 (
-; IN UINTN Port, // rcx
-; IN UINTN Size, // rdx
-; IN VOID *Buffer // r8
-; );
-;------------------------------------------------------------------------------
-IoReadFifo32 PROC
- cld
- xchg rcx, rdx
- xchg rdi, r8 ; rdi: buffer address; r8: save rdi
-rep insd
- mov rdi, r8 ; restore rdi
- ret
-IoReadFifo32 ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; IoWriteFifo8 (
-; IN UINTN Port, // rcx
-; IN UINTN Size, // rdx
-; IN VOID *Buffer // r8
-; );
-;------------------------------------------------------------------------------
-IoWriteFifo8 PROC
- cld
- xchg rcx, rdx
- xchg rsi, r8 ; rsi: buffer address; r8: save rsi
-rep outsb
- mov rsi, r8 ; restore rsi
- ret
-IoWriteFifo8 ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; IoWriteFifo16 (
-; IN UINTN Port, // rcx
-; IN UINTN Size, // rdx
-; IN VOID *Buffer // r8
-; );
-;------------------------------------------------------------------------------
-IoWriteFifo16 PROC
- cld
- xchg rcx, rdx
- xchg rsi, r8 ; rsi: buffer address; r8: save rsi
-rep outsw
- mov rsi, r8 ; restore rsi
- ret
-IoWriteFifo16 ENDP
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; IoWriteFifo32 (
-; IN UINTN Port, // rcx
-; IN UINTN Size, // rdx
-; IN VOID *Buffer // r8
-; );
-;------------------------------------------------------------------------------
-IoWriteFifo32 PROC
- cld
- xchg rcx, rdx
- xchg rsi, r8 ; rsi: buffer address; r8: save rsi
-rep outsd
- mov rsi, r8 ; restore rsi
- ret
-IoWriteFifo32 ENDP
-
- END
-
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