mirror of https://github.com/acidanthera/audk.git
650 lines
27 KiB
C
650 lines
27 KiB
C
/** @file
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The Header file of the Pci Host Bridge Driver
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Copyright (c) 2008 - 2010, 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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#ifndef _PCI_HOST_BRIDGE_H_
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#define _PCI_HOST_BRIDGE_H_
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#include <PiDxe.h>
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#include <IndustryStandard/Pci.h>
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#include <IndustryStandard/Acpi.h>
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#include <Protocol/PciHostBridgeResourceAllocation.h>
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#include <Protocol/PciRootBridgeIo.h>
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#include <Protocol/Metronome.h>
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#include <Protocol/DevicePath.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/DxeServicesTableLib.h>
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#include <Library/DevicePathLib.h>
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#include <Library/IoLib.h>
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#include <Library/PciLib.h>
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//
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// Hard code the host bridge number in the platform.
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// In this chipset, there is only one host bridge.
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//
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#define HOST_BRIDGE_NUMBER 1
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#define MAX_PCI_DEVICE_NUMBER 31
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#define MAX_PCI_FUNCTION_NUMBER 7
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#define MAX_PCI_REG_ADDRESS 0xFF
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typedef enum {
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IoOperation,
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MemOperation,
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PciOperation
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} OPERATION_TYPE;
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#define PCI_HOST_BRIDGE_SIGNATURE SIGNATURE_32('e', 'h', 's', 't')
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typedef struct {
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UINTN Signature;
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EFI_HANDLE HostBridgeHandle;
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UINTN RootBridgeNumber;
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LIST_ENTRY Head;
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BOOLEAN ResourceSubmited;
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BOOLEAN CanRestarted;
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EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL ResAlloc;
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} PCI_HOST_BRIDGE_INSTANCE;
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#define INSTANCE_FROM_RESOURCE_ALLOCATION_THIS(a) \
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CR(a, PCI_HOST_BRIDGE_INSTANCE, ResAlloc, PCI_HOST_BRIDGE_SIGNATURE)
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//
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// HostBridge Resource Allocation interface
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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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Return the device handle of the next PCI root bridge that is associated with
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this Host Bridge.
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This function is called multiple times to retrieve the device handles of all
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the PCI root bridges that are associated with this PCI host bridge. Each PCI
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host bridge is associated with one or more PCI root bridges. On each call,
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the handle that was returned by the previous call is passed into the
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interface, and on output the interface returns the device handle of the next
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PCI root bridge. The caller can use the handle to obtain the instance of the
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EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL for that root bridge. When there are no more
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PCI root bridges to report, the interface returns EFI_NOT_FOUND. A PCI
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enumerator must enumerate the PCI root bridges in the order that they are
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returned by this function.
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For D945 implementation, there is only one root bridge in PCI host bridge.
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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, out] RootBridgeHandle Returns the device handle of the next PCI
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root bridge.
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@retval EFI_SUCCESS If parameter RootBridgeHandle = NULL, then
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return the first Rootbridge handle of the
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specific Host bridge and return EFI_SUCCESS.
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@retval EFI_NOT_FOUND Can not find the any more root bridge in
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specific host bridge.
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@retval EFI_INVALID_PARAMETER RootBridgeHandle is not an EFI_HANDLE that was
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returned on a previous call to
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GetNextRootBridge().
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**/
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EFI_STATUS
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EFIAPI
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GetNextRootBridge(
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IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
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IN OUT EFI_HANDLE *RootBridgeHandle
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);
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/**
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Returns the allocation attributes of a PCI root bridge.
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The function returns the allocation attributes of a specific PCI root bridge.
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The attributes can vary from one PCI root bridge to another. These attributes
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are different from the decode-related attributes that are returned by the
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EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.GetAttributes() member function. The
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RootBridgeHandle parameter is used to specify the instance of the PCI root
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bridge. The device handles of all the root bridges that are associated with
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this host bridge must be obtained by calling GetNextRootBridge(). The
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attributes are static in the sense that they do not change during or after
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the enumeration process. The hardware may provide mechanisms to change the
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attributes on the fly, but such changes must be completed before
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EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL is installed. The permitted
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values of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ATTRIBUTES are defined in
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"Related Definitions" below. The caller uses these attributes to combine
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multiple resource requests.
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For example, if the flag EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM is set, the PCI
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bus enumerator needs to include requests for the prefetchable memory in the
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nonprefetchable memory pool and not request any prefetchable memory.
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Attribute Description
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------------------------------------ ---------------------------------------
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EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM If this bit is set, then the PCI root
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bridge does not support separate
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windows for nonprefetchable and
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prefetchable memory. A PCI bus driver
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needs to include requests for
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prefetchable memory in the
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nonprefetchable memory pool.
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EFI_PCI_HOST_BRIDGE_MEM64_DECODE If this bit is set, then the PCI root
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bridge supports 64-bit memory windows.
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If this bit is not set, the PCI bus
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driver needs to include requests for a
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64-bit memory address in the
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corresponding 32-bit memory pool.
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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] RootBridgeHandle The device handle of the PCI root bridge in
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which the caller is interested. Type
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EFI_HANDLE is defined in
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InstallProtocolInterface() in the UEFI 2.0
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Specification.
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@param[out] Attributes The pointer to attribte of root bridge, it is
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output parameter
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@retval EFI_INVALID_PARAMETER Attribute pointer is NULL
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@retval EFI_INVALID_PARAMETER RootBridgehandle is invalid.
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@retval EFI_SUCCESS Success to get attribute of interested root
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bridge.
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**/
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EFI_STATUS
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EFIAPI
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GetAttributes(
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IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
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IN EFI_HANDLE RootBridgeHandle,
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OUT UINT64 *Attributes
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);
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/**
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Sets up the specified PCI root bridge for the bus enumeration process.
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This member function sets up the root bridge for bus enumeration and returns
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the PCI bus range over which the search should be performed in ACPI 2.0
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resource descriptor format.
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@param[in] This The
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EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
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instance.
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@param[in] RootBridgeHandle The PCI Root Bridge to be set up.
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@param[out] Configuration Pointer to the pointer to the PCI bus resource
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descriptor.
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@retval EFI_INVALID_PARAMETER Invalid Root bridge's handle
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@retval EFI_OUT_OF_RESOURCES Fail to allocate ACPI resource descriptor tag.
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@retval EFI_SUCCESS Sucess to allocate ACPI resource descriptor.
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**/
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EFI_STATUS
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EFIAPI
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StartBusEnumeration(
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IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
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IN EFI_HANDLE RootBridgeHandle,
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OUT VOID **Configuration
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);
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/**
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Programs the PCI root bridge hardware so that it decodes the specified PCI
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bus range.
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This member function programs the specified PCI root bridge to decode the bus
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range that is specified by the input parameter Configuration.
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The bus range information is specified in terms of the ACPI 2.0 resource
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descriptor format.
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@param[in] This The
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EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
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instance
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@param[in] RootBridgeHandle The PCI Root Bridge whose bus range is to be
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programmed
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@param[in] Configuration The pointer to the PCI bus resource descriptor
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@retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge
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handle.
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@retval EFI_INVALID_PARAMETER Configuration is NULL.
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@retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI
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2.0 resource descriptor.
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@retval EFI_INVALID_PARAMETER Configuration does not include a valid ACPI
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2.0 bus resource descriptor.
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@retval EFI_INVALID_PARAMETER Configuration includes valid ACPI 2.0 resource
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descriptors other than bus descriptors.
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@retval EFI_INVALID_PARAMETER Configuration contains one or more invalid
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ACPI resource descriptors.
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@retval EFI_INVALID_PARAMETER "Address Range Minimum" is invalid for this
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root bridge.
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@retval EFI_INVALID_PARAMETER "Address Range Length" is invalid for this
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root bridge.
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@retval EFI_DEVICE_ERROR Programming failed due to a hardware error.
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@retval EFI_SUCCESS The bus range for the PCI root bridge was
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programmed.
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**/
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EFI_STATUS
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EFIAPI
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SetBusNumbers(
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IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
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IN EFI_HANDLE RootBridgeHandle,
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IN VOID *Configuration
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);
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/**
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Submits the I/O and memory resource requirements for the specified PCI root
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bridge.
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This function is used to submit all the I/O and memory resources that are
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required by the specified PCI root bridge. The input parameter Configuration
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is used to specify the following:
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- The various types of resources that are required
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- The associated lengths in terms of ACPI 2.0 resource descriptor format
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@param[in] This Pointer to the
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EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
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instance.
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@param[in] RootBridgeHandle The PCI root bridge whose I/O and memory
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resource requirements are being submitted.
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@param[in] Configuration The pointer to the PCI I/O and PCI memory
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resource descriptor.
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@retval EFI_SUCCESS The I/O and memory resource requests for a PCI
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root bridge were accepted.
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@retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge
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handle.
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@retval EFI_INVALID_PARAMETER Configuration is NULL.
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@retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI
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2.0 resource descriptor.
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@retval EFI_INVALID_PARAMETER Configuration includes requests for one or
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more resource types that are not supported by
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this PCI root bridge. This error will happen
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if the caller did not combine resources
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according to Attributes that were returned by
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GetAllocAttributes().
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@retval EFI_INVALID_PARAMETER Address Range Maximum" is invalid.
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@retval EFI_INVALID_PARAMETER "Address Range Length" is invalid for this PCI
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root bridge.
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@retval EFI_INVALID_PARAMETER "Address Space Granularity" is invalid for
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this PCI root bridge.
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**/
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EFI_STATUS
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EFIAPI
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SubmitResources(
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IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
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IN EFI_HANDLE RootBridgeHandle,
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IN VOID *Configuration
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);
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/**
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Returns the proposed resource settings for the specified PCI root bridge.
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This member function returns the proposed resource settings for the
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specified PCI root bridge. The proposed resource settings are prepared when
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NotifyPhase() is called with a Phase of EfiPciHostBridgeAllocateResources.
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The output parameter Configuration specifies the following:
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- The various types of resources, excluding bus resources, that are
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allocated
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- The associated lengths in terms of ACPI 2.0 resource descriptor format
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@param[in] This Pointer to the
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EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
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instance.
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@param[in] RootBridgeHandle The PCI root bridge handle. Type EFI_HANDLE is
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defined in InstallProtocolInterface() in the
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UEFI 2.0 Specification.
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@param[out] Configuration The pointer to the pointer to the PCI I/O and
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memory resource descriptor.
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@retval EFI_SUCCESS The requested parameters were returned.
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@retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge
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handle.
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@retval EFI_DEVICE_ERROR Programming failed due to a hardware error.
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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.
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**/
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EFI_STATUS
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EFIAPI
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GetProposedResources(
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IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
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IN EFI_HANDLE RootBridgeHandle,
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OUT VOID **Configuration
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);
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/**
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Provides the hooks from the PCI bus driver to every PCI controller
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(device/function) at various stages of the PCI enumeration process that allow
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the host bridge driver to preinitialize individual PCI controllers before
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enumeration.
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This function is called during the PCI enumeration process. No specific
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action is expected from this member function. It allows the host bridge
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driver to preinitialize individual PCI controllers before enumeration.
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@param This Pointer to the
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EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
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instance.
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@param RootBridgeHandle The associated PCI root bridge handle. Type
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EFI_HANDLE is defined in InstallProtocolInterface()
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in the UEFI 2.0 Specification.
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@param PciAddress The address of the PCI device on the PCI bus. This
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address can be passed to the
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EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL member functions to
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access the PCI configuration space of the device.
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See Table 12-1 in the UEFI 2.0 Specification for the
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definition of
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EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS.
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@param Phase The phase of the PCI device enumeration.
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@retval EFI_SUCCESS The requested parameters were returned.
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@retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge
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handle.
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@retval EFI_INVALID_PARAMETER Phase is not a valid phase that is defined
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in
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EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE.
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@retval EFI_DEVICE_ERROR Programming failed due to a hardware error.
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The PCI enumerator should not enumerate this
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device, including its child devices if it is
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a PCI-to-PCI bridge.
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**/
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EFI_STATUS
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EFIAPI
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PreprocessController (
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IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,
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IN EFI_HANDLE RootBridgeHandle,
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS PciAddress,
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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
|