fe907a688c
Currently we define a device path for each root bridge statically (for all one of them). Since we'll want to create a dynamic number of root bridges, replace the static device paths with a common template, embed the actual device path into the private root bridge structure, and distinguish the device paths from each other in the UID field (as required by ACPI). This patch is best viewed with "git show -b". Cc: Jordan Justen <jordan.l.justen@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Regression-tested-by: Gabriel Somlo <somlo@cmu.edu> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17957 6f19259b-4bc3-4df7-8a09-765794883524
1387 lines
50 KiB
C
1387 lines
50 KiB
C
/** @file
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Provides the basic interfaces to abstract a PCI Host Bridge Resource
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Allocation
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Copyright (C) 2015, Red Hat, Inc.
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Copyright (c) 2008 - 2013, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available
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under the terms and conditions of the BSD License which accompanies this
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distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "PciHostBridge.h"
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STATIC
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CONST
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EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mRootBridgeDevicePathTemplate = {
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{
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{
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ACPI_DEVICE_PATH,
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ACPI_DP,
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{
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(UINT8) (sizeof(ACPI_HID_DEVICE_PATH)),
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(UINT8) ((sizeof(ACPI_HID_DEVICE_PATH)) >> 8)
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}
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},
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EISA_PNP_ID(0x0A03), // HID
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0 // UID
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},
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{
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END_DEVICE_PATH_TYPE,
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END_ENTIRE_DEVICE_PATH_SUBTYPE,
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{
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END_DEVICE_PATH_LENGTH,
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0
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}
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}
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};
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//
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// Hard code: Root Bridge's resource aperture
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//
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PCI_ROOT_BRIDGE_RESOURCE_APERTURE mResAperture[1] = {
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{0, 0xff, 0x80000000, 0xffffffff, 0, 0xffff}
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};
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EFI_HANDLE mDriverImageHandle;
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PCI_HOST_BRIDGE_INSTANCE mPciHostBridgeInstanceTemplate = {
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PCI_HOST_BRIDGE_SIGNATURE, // Signature
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NULL, // HostBridgeHandle
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0, // RootBridgeNumber
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{NULL, NULL}, // Head
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FALSE, // ResourceSubiteed
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TRUE, // CanRestarted
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{
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NotifyPhase,
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GetNextRootBridge,
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GetAttributes,
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StartBusEnumeration,
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SetBusNumbers,
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SubmitResources,
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GetProposedResources,
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PreprocessController
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}
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};
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//
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// Implementation
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//
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/**
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Entry point of this driver
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@param ImageHandle Handle of driver image
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@param SystemTable Point to EFI_SYSTEM_TABLE
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@retval EFI_OUT_OF_RESOURCES Can not allocate memory resource
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@retval EFI_DEVICE_ERROR Can not install the protocol instance
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@retval EFI_SUCCESS Success to initialize the Pci host bridge.
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**/
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EFI_STATUS
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EFIAPI
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InitializePciHostBridge (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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UINTN Loop2;
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PCI_HOST_BRIDGE_INSTANCE *HostBridge;
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PCI_ROOT_BRIDGE_INSTANCE *PrivateData;
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mDriverImageHandle = ImageHandle;
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//
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// Create Host Bridge Device Handle
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//
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HostBridge = AllocateCopyPool (sizeof(PCI_HOST_BRIDGE_INSTANCE),
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&mPciHostBridgeInstanceTemplate);
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if (HostBridge == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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HostBridge->RootBridgeNumber = 1;
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InitializeListHead (&HostBridge->Head);
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Status = gBS->InstallMultipleProtocolInterfaces (
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&HostBridge->HostBridgeHandle,
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&gEfiPciHostBridgeResourceAllocationProtocolGuid,
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&HostBridge->ResAlloc,
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NULL
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);
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if (EFI_ERROR (Status)) {
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FreePool (HostBridge);
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return EFI_DEVICE_ERROR;
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}
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//
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// Create Root Bridge Device Handle in this Host Bridge
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//
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for (Loop2 = 0; Loop2 < HostBridge->RootBridgeNumber; Loop2++) {
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PrivateData = AllocateZeroPool (sizeof(PCI_ROOT_BRIDGE_INSTANCE));
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if (PrivateData == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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PrivateData->Signature = PCI_ROOT_BRIDGE_SIGNATURE;
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CopyMem (&PrivateData->DevicePath, &mRootBridgeDevicePathTemplate,
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sizeof mRootBridgeDevicePathTemplate);
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PrivateData->DevicePath.AcpiDevicePath.UID = Loop2;
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RootBridgeConstructor (
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&PrivateData->Io,
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HostBridge->HostBridgeHandle,
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EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM,
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&mResAperture[Loop2]
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);
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Status = gBS->InstallMultipleProtocolInterfaces(
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&PrivateData->Handle,
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&gEfiDevicePathProtocolGuid,
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&PrivateData->DevicePath,
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&gEfiPciRootBridgeIoProtocolGuid,
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&PrivateData->Io,
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NULL
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);
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if (EFI_ERROR (Status)) {
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FreePool(PrivateData);
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return EFI_DEVICE_ERROR;
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}
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InsertTailList (&HostBridge->Head, &PrivateData->Link);
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}
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return EFI_SUCCESS;
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}
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/**
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These are the notifications from the PCI bus driver that it is about to enter
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a certain phase of the PCI enumeration process.
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This member function can be used to notify the host bridge driver to perform
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specific actions, including any chipset-specific initialization, so that the
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chipset is ready to enter the next phase. Eight notification points are
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defined at this time. See belows:
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EfiPciHostBridgeBeginEnumeration Resets the host bridge PCI apertures
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and internal data structures. The PCI
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enumerator should issue this
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notification before starting a fresh
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enumeration process. Enumeration
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cannot be restarted after sending any
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other notification such as
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EfiPciHostBridgeBeginBusAllocation.
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EfiPciHostBridgeBeginBusAllocation The bus allocation phase is about to
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begin. No specific action is required
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here. This notification can be used to
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perform any chipset-specific
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programming.
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EfiPciHostBridgeEndBusAllocation The bus allocation and bus programming
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phase is complete. No specific action
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is required here. This notification
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can be used to perform any
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chipset-specific programming.
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EfiPciHostBridgeBeginResourceAllocation
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The resource allocation phase is about
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to begin. No specific action is
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required here. This notification can
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be used to perform any
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chipset-specific programming.
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EfiPciHostBridgeAllocateResources Allocates resources per previously
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submitted requests for all the PCI
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root bridges. These resource settings
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are returned on the next call to
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GetProposedResources(). Before calling
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NotifyPhase() with a Phase of
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EfiPciHostBridgeAllocateResource, the
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PCI bus enumerator is responsible for
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gathering I/O and memory requests for
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all the PCI root bridges and
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submitting these requests using
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SubmitResources(). This function pads
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the resource amount to suit the root
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bridge hardware, takes care of
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dependencies between the PCI root
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bridges, and calls the Global
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Coherency Domain (GCD) with the
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allocation request. In the case of
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padding, the allocated range could be
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bigger than what was requested.
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EfiPciHostBridgeSetResources Programs the host bridge hardware to
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decode previously allocated resources
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(proposed resources) for all the PCI
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root bridges. After the hardware is
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programmed, reassigning resources will
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not be supported. The bus settings are
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not affected.
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EfiPciHostBridgeFreeResources Deallocates resources that were
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previously allocated for all the PCI
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root bridges and resets the I/O and
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memory apertures to their initial
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state. The bus settings are not
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affected. If the request to allocate
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resources fails, the PCI enumerator
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can use this notification to
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deallocate previous resources, adjust
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the requests, and retry allocation.
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EfiPciHostBridgeEndResourceAllocation The resource allocation phase is
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completed. No specific action is
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required here. This notification can
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be used to perform any chipsetspecific
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programming.
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@param[in] This The instance pointer of
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EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
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@param[in] Phase The phase during enumeration
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@retval EFI_NOT_READY This phase cannot be entered at this time. For
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example, this error is valid for a Phase of
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EfiPciHostBridgeAllocateResources if
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SubmitResources() has not been called for one
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or more PCI root bridges before this call
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@retval EFI_DEVICE_ERROR Programming failed due to a hardware error.
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This error is valid for a Phase of
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EfiPciHostBridgeSetResources.
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@retval EFI_INVALID_PARAMETER Invalid phase parameter
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@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a
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lack of resources. This error is valid for a
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Phase of EfiPciHostBridgeAllocateResources if
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the previously submitted resource requests
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cannot be fulfilled or were only partially
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fulfilled.
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@retval EFI_SUCCESS The notification was accepted without any
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errors.
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**/
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EFI_STATUS
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EFIAPI
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NotifyPhase(
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IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
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IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE Phase
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)
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{
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PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;
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PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
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PCI_RESOURCE_TYPE Index;
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LIST_ENTRY *List;
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EFI_PHYSICAL_ADDRESS BaseAddress;
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UINT64 AddrLen;
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UINTN BitsOfAlignment;
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EFI_STATUS Status;
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EFI_STATUS ReturnStatus;
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HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);
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switch (Phase) {
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case EfiPciHostBridgeBeginEnumeration:
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if (HostBridgeInstance->CanRestarted) {
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//
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// Reset the Each Root Bridge
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//
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List = HostBridgeInstance->Head.ForwardLink;
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while (List != &HostBridgeInstance->Head) {
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RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
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for (Index = TypeIo; Index < TypeMax; Index++) {
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RootBridgeInstance->ResAllocNode[Index].Type = Index;
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RootBridgeInstance->ResAllocNode[Index].Base = 0;
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RootBridgeInstance->ResAllocNode[Index].Length = 0;
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RootBridgeInstance->ResAllocNode[Index].Status = ResNone;
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}
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List = List->ForwardLink;
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}
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HostBridgeInstance->ResourceSubmited = FALSE;
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HostBridgeInstance->CanRestarted = TRUE;
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} else {
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//
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// Can not restart
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//
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return EFI_NOT_READY;
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}
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break;
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case EfiPciHostBridgeEndEnumeration:
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break;
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case EfiPciHostBridgeBeginBusAllocation:
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//
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// No specific action is required here, can perform any chipset specific
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// programing
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//
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HostBridgeInstance->CanRestarted = FALSE;
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break;
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case EfiPciHostBridgeEndBusAllocation:
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//
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// No specific action is required here, can perform any chipset specific
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// programing
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//
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//HostBridgeInstance->CanRestarted = FALSE;
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break;
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case EfiPciHostBridgeBeginResourceAllocation:
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//
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// No specific action is required here, can perform any chipset specific
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// programing
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//
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//HostBridgeInstance->CanRestarted = FALSE;
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break;
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case EfiPciHostBridgeAllocateResources:
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ReturnStatus = EFI_SUCCESS;
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if (HostBridgeInstance->ResourceSubmited) {
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//
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// Take care of the resource dependencies between the root bridges
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//
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List = HostBridgeInstance->Head.ForwardLink;
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while (List != &HostBridgeInstance->Head) {
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RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
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for (Index = TypeIo; Index < TypeBus; Index++) {
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if (RootBridgeInstance->ResAllocNode[Index].Status != ResNone) {
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AddrLen = RootBridgeInstance->ResAllocNode[Index].Length;
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//
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// Get the number of '1' in Alignment.
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//
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BitsOfAlignment =
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(UINTN)(HighBitSet64 (
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RootBridgeInstance->ResAllocNode[Index].Alignment
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) + 1);
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switch (Index) {
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case TypeIo:
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//
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// It is impossible for this chipset to align 0xFFFF for IO16
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// So clear it
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//
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if (BitsOfAlignment >= 16) {
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BitsOfAlignment = 0;
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}
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Status = gDS->AllocateIoSpace (
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EfiGcdAllocateAnySearchBottomUp,
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EfiGcdIoTypeIo,
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BitsOfAlignment,
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AddrLen,
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&BaseAddress,
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mDriverImageHandle,
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NULL
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);
|
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|
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if (!EFI_ERROR (Status)) {
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RootBridgeInstance->ResAllocNode[Index].Base =
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(UINTN)BaseAddress;
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RootBridgeInstance->ResAllocNode[Index].Status =
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ResAllocated;
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} else {
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ReturnStatus = Status;
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if (Status != EFI_OUT_OF_RESOURCES) {
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RootBridgeInstance->ResAllocNode[Index].Length = 0;
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}
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}
|
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break;
|
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|
|
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case TypeMem32:
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//
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// It is impossible for this chipset to align 0xFFFFFFFF for
|
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// Mem32
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// So clear it
|
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//
|
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if (BitsOfAlignment >= 32) {
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BitsOfAlignment = 0;
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}
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Status = gDS->AllocateMemorySpace (
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EfiGcdAllocateAnySearchBottomUp,
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EfiGcdMemoryTypeMemoryMappedIo,
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BitsOfAlignment,
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AddrLen,
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&BaseAddress,
|
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mDriverImageHandle,
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NULL
|
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);
|
|
|
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if (!EFI_ERROR (Status)) {
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// We were able to allocate the PCI memory
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RootBridgeInstance->ResAllocNode[Index].Base =
|
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(UINTN)BaseAddress;
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RootBridgeInstance->ResAllocNode[Index].Status =
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ResAllocated;
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} else {
|
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// Not able to allocate enough PCI memory
|
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ReturnStatus = Status;
|
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|
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if (Status != EFI_OUT_OF_RESOURCES) {
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RootBridgeInstance->ResAllocNode[Index].Length = 0;
|
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}
|
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ASSERT (FALSE);
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}
|
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break;
|
|
|
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case TypePMem32:
|
|
case TypeMem64:
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case TypePMem64:
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ReturnStatus = EFI_ABORTED;
|
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break;
|
|
default:
|
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ASSERT (FALSE);
|
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break;
|
|
}; //end switch
|
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}
|
|
}
|
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List = List->ForwardLink;
|
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}
|
|
|
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return ReturnStatus;
|
|
|
|
} else {
|
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return EFI_NOT_READY;
|
|
}
|
|
break;
|
|
|
|
case EfiPciHostBridgeSetResources:
|
|
break;
|
|
|
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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++) {
|
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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;
|
|
}
|