mirror of https://github.com/acidanthera/audk.git
578 lines
21 KiB
C
578 lines
21 KiB
C
/** @file
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The PCI Root Bridge header file.
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Copyright (c) 1999 - 2018, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this 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_ROOT_BRIDGE_H_
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#define _PCI_ROOT_BRIDGE_H_
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#include <PiDxe.h>
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#include <IndustryStandard/Acpi.h>
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#include <IndustryStandard/Pci.h>
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//
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// Driver Consumed Protocol Prototypes
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//
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#include <Protocol/CpuIo2.h>
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#include <Protocol/DevicePath.h>
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#include <Protocol/PciRootBridgeIo.h>
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#include <Library/DebugLib.h>
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#include <Library/DevicePathLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DxeServicesTableLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/BaseLib.h>
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#include <Library/PciSegmentLib.h>
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#include <Library/UefiLib.h>
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#include <Library/TimerLib.h>
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#include "PciHostResource.h"
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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 MAP_INFO_SIGNATURE SIGNATURE_32 ('_', 'm', 'a', 'p')
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typedef struct {
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UINT32 Signature;
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LIST_ENTRY Link;
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EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_OPERATION Operation;
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UINTN NumberOfBytes;
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UINTN NumberOfPages;
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EFI_PHYSICAL_ADDRESS HostAddress;
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EFI_PHYSICAL_ADDRESS MappedHostAddress;
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} MAP_INFO;
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#define MAP_INFO_FROM_LINK(a) CR (a, MAP_INFO, Link, MAP_INFO_SIGNATURE)
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#define PCI_ROOT_BRIDGE_SIGNATURE SIGNATURE_32 ('_', 'p', 'r', 'b')
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typedef struct {
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UINT32 Signature;
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LIST_ENTRY Link;
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EFI_HANDLE Handle;
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UINT64 AllocationAttributes;
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UINT64 Attributes;
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UINT64 Supports;
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PCI_RES_NODE ResAllocNode[TypeMax];
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PCI_ROOT_BRIDGE_APERTURE Bus;
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PCI_ROOT_BRIDGE_APERTURE Io;
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PCI_ROOT_BRIDGE_APERTURE Mem;
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PCI_ROOT_BRIDGE_APERTURE PMem;
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PCI_ROOT_BRIDGE_APERTURE MemAbove4G;
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PCI_ROOT_BRIDGE_APERTURE PMemAbove4G;
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BOOLEAN DmaAbove4G;
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BOOLEAN NoExtendedConfigSpace;
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VOID *ConfigBuffer;
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EFI_DEVICE_PATH_PROTOCOL *DevicePath;
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CHAR16 *DevicePathStr;
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EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL RootBridgeIo;
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BOOLEAN ResourceSubmitted;
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LIST_ENTRY Maps;
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} PCI_ROOT_BRIDGE_INSTANCE;
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#define ROOT_BRIDGE_FROM_THIS(a) CR (a, PCI_ROOT_BRIDGE_INSTANCE, RootBridgeIo, PCI_ROOT_BRIDGE_SIGNATURE)
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#define ROOT_BRIDGE_FROM_LINK(a) CR (a, PCI_ROOT_BRIDGE_INSTANCE, Link, PCI_ROOT_BRIDGE_SIGNATURE)
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/**
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Construct the Pci Root Bridge instance.
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@param Bridge The root bridge instance.
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@return The pointer to PCI_ROOT_BRIDGE_INSTANCE just created
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or NULL if creation fails.
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**/
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PCI_ROOT_BRIDGE_INSTANCE *
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CreateRootBridge (
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IN PCI_ROOT_BRIDGE *Bridge
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);
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//
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// Protocol Member Function Prototypes
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//
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/**
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Poll an address in memory mapped space until an exit condition is met
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or a timeout occurs.
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@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
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@param Width - Width of the memory operation.
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@param Address - The base address of the memory operation.
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@param Mask - Mask used for polling criteria.
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@param Value - Comparison value used for polling exit criteria.
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@param Delay - Number of 100ns units to poll.
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@param Result - Pointer to the last value read from memory location.
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@retval EFI_SUCCESS - Success.
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@retval EFI_INVALID_PARAMETER - Invalid parameter found.
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@retval EFI_TIMEOUT - Delay expired before a match occurred.
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@retval EFI_OUT_OF_RESOURCES - Fail due to lack of resources.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoPollMem (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
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IN UINT64 Address,
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IN UINT64 Mask,
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IN UINT64 Value,
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IN UINT64 Delay,
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OUT UINT64 *Result
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)
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;
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/**
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Poll an address in I/O space until an exit condition is met
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or a timeout occurs.
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@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
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@param Width - Width of I/O operation.
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@param Address - The base address of the I/O operation.
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@param Mask - Mask used for polling criteria.
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@param Value - Comparison value used for polling exit criteria.
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@param Delay - Number of 100ns units to poll.
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@param Result - Pointer to the last value read from memory location.
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@retval EFI_SUCCESS - Success.
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@retval EFI_INVALID_PARAMETER - Invalid parameter found.
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@retval EFI_TIMEOUT - Delay expired before a match occurred.
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@retval EFI_OUT_OF_RESOURCES - Fail due to lack of resources.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoPollIo (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
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IN UINT64 Address,
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IN UINT64 Mask,
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IN UINT64 Value,
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IN UINT64 Delay,
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OUT UINT64 *Result
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)
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;
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/**
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Allow read from memory mapped I/O space.
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@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
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@param Width - The width of memory operation.
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@param Address - Base address of the memory operation.
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@param Count - Number of memory opeartion to perform.
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@param Buffer - The destination buffer to store data.
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@retval EFI_SUCCESS - Success.
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@retval EFI_INVALID_PARAMETER - Invalid parameter found.
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@retval EFI_OUT_OF_RESOURCES - Fail due to lack of resources.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoMemRead (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
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IN UINT64 Address,
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IN UINTN Count,
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IN OUT VOID *Buffer
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)
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;
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/**
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Allow write to memory mapped I/O space.
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@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
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@param Width - The width of memory operation.
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@param Address - Base address of the memory operation.
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@param Count - Number of memory opeartion to perform.
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@param Buffer - The source buffer to write data from.
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@retval EFI_SUCCESS - Success.
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@retval EFI_INVALID_PARAMETER - Invalid parameter found.
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@retval EFI_OUT_OF_RESOURCES - Fail due to lack of resources.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoMemWrite (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
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IN UINT64 Address,
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IN UINTN Count,
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IN OUT VOID *Buffer
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)
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;
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/**
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Enable a PCI driver to read PCI controller registers in the
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PCI root bridge I/O space.
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@param This - A pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
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@param Width - Signifies the width of the memory operation.
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@param UserAddress - The base address of the I/O operation.
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@param Count - The number of I/O operations to perform.
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@param UserBuffer - The destination buffer to store the results.
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@retval EFI_SUCCESS - The data was read from the PCI root bridge.
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@retval EFI_INVALID_PARAMETER - Invalid parameters found.
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@retval EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of
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@retval resources.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoIoRead (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
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IN UINT64 UserAddress,
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IN UINTN Count,
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IN OUT VOID *UserBuffer
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)
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;
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/**
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Enable a PCI driver to write to PCI controller registers in the
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PCI root bridge I/O space.
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@param This - A pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
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@param Width - Signifies the width of the memory operation.
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@param UserAddress - The base address of the I/O operation.
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@param Count - The number of I/O operations to perform.
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@param UserBuffer - The source buffer to write data from.
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@retval EFI_SUCCESS - The data was written to the PCI root bridge.
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@retval EFI_INVALID_PARAMETER - Invalid parameters found.
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@retval EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of
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@retval resources.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoIoWrite (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
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IN UINT64 UserAddress,
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IN UINTN Count,
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IN OUT VOID *UserBuffer
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)
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;
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/**
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Copy one region of PCI root bridge memory space to be copied to
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another region of PCI root bridge memory space.
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@param This - A pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
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@param Width - Signifies the width of the memory operation.
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@param DestAddress - Destination address of the memory operation.
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@param SrcAddress - Source address of the memory operation.
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@param Count - Number of memory operations to perform.
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@retval EFI_SUCCESS - The data was copied successfully.
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@retval EFI_INVALID_PARAMETER - Invalid parameters found.
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@retval EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of
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@retval resources.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoCopyMem (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
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IN UINT64 DestAddress,
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IN UINT64 SrcAddress,
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IN UINTN Count
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)
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;
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/**
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Allows read from PCI configuration space.
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@param This - A pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
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@param Width - Signifies the width of the memory operation.
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@param Address - The address within the PCI configuration space
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for the PCI controller.
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@param Count - The number of PCI configuration operations
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to perform.
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@param Buffer - The destination buffer to store the results.
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@retval EFI_SUCCESS - The data was read from the PCI root bridge.
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@retval EFI_INVALID_PARAMETER - Invalid parameters found.
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@retval EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of
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@retval resources.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoPciRead (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
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IN UINT64 Address,
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IN UINTN Count,
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IN OUT VOID *Buffer
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)
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;
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/**
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Allows write to PCI configuration space.
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@param This - A pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
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@param Width - Signifies the width of the memory operation.
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@param Address - The address within the PCI configuration space
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for the PCI controller.
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@param Count - The number of PCI configuration operations
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to perform.
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@param Buffer - The source buffer to get the results.
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@retval EFI_SUCCESS - The data was written to the PCI root bridge.
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@retval EFI_INVALID_PARAMETER - Invalid parameters found.
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@retval EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of
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@retval resources.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoPciWrite (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
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IN UINT64 Address,
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IN UINTN Count,
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IN OUT VOID *Buffer
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)
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;
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/**
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Provides the PCI controller-specific address needed to access
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system memory for DMA.
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@param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
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@param Operation Indicate if the bus master is going to read or write
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to system memory.
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@param HostAddress The system memory address to map on the PCI controller.
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@param NumberOfBytes On input the number of bytes to map.
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On output the number of bytes that were mapped.
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@param DeviceAddress The resulting map address for the bus master PCI
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controller to use to access the system memory's HostAddress.
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@param Mapping The value to pass to Unmap() when the bus master DMA
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operation is complete.
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@retval EFI_SUCCESS Success.
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@retval EFI_INVALID_PARAMETER Invalid parameters found.
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@retval EFI_UNSUPPORTED The HostAddress cannot be mapped as a common buffer.
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@retval EFI_DEVICE_ERROR The System hardware could not map the requested address.
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@retval EFI_OUT_OF_RESOURCES The request could not be completed due to lack of resources.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoMap (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_OPERATION Operation,
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IN VOID *HostAddress,
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IN OUT UINTN *NumberOfBytes,
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OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
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OUT VOID **Mapping
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)
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;
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/**
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Completes the Map() operation and releases any corresponding resources.
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The Unmap() function completes the Map() operation and releases any
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corresponding resources.
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If the operation was an EfiPciOperationBusMasterWrite or
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EfiPciOperationBusMasterWrite64, the data is committed to the target system
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memory.
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Any resources used for the mapping are freed.
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@param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
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@param[in] Mapping The mapping value returned from Map().
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@retval EFI_SUCCESS The range was unmapped.
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@retval EFI_INVALID_PARAMETER Mapping is not a value that was returned by Map().
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@retval EFI_DEVICE_ERROR The data was not committed to the target system memory.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoUnmap (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN VOID *Mapping
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)
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;
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/**
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Allocates pages that are suitable for an EfiPciOperationBusMasterCommonBuffer
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or EfiPciOperationBusMasterCommonBuffer64 mapping.
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@param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
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@param Type This parameter is not used and must be ignored.
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@param MemoryType The type of memory to allocate, EfiBootServicesData or
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EfiRuntimeServicesData.
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@param Pages The number of pages to allocate.
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@param HostAddress A pointer to store the base system memory address of the
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allocated range.
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@param Attributes The requested bit mask of attributes for the allocated
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range. Only the attributes
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EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE,
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EFI_PCI_ATTRIBUTE_MEMORY_CACHED, and
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EFI_PCI_ATTRIBUTE_DUAL_ADDRESS_CYCLE may be used with this
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function.
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@retval EFI_SUCCESS The requested memory pages were allocated.
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@retval EFI_INVALID_PARAMETER MemoryType is invalid.
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@retval EFI_INVALID_PARAMETER HostAddress is NULL.
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@retval EFI_UNSUPPORTED Attributes is unsupported. The only legal
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attribute bits are MEMORY_WRITE_COMBINE,
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MEMORY_CACHED, and DUAL_ADDRESS_CYCLE.
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@retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoAllocateBuffer (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN EFI_ALLOCATE_TYPE Type,
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IN EFI_MEMORY_TYPE MemoryType,
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IN UINTN Pages,
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OUT VOID **HostAddress,
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IN UINT64 Attributes
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)
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;
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/**
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Free memory allocated in AllocateBuffer.
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@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
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instance.
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@param Pages - Number of pages to free.
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@param HostAddress - The base system memory address of the
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allocated range.
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@retval EFI_SUCCESS - Requested memory pages were freed.
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@retval EFI_INVALID_PARAMETER - Invalid parameter found.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoFreeBuffer (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
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IN UINTN Pages,
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OUT VOID *HostAddress
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)
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;
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/**
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Flushes all PCI posted write transactions from a PCI host
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bridge to system memory.
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@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
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@retval EFI_SUCCESS - PCI posted write transactions were flushed
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@retval from PCI host bridge to system memory.
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@retval EFI_DEVICE_ERROR - Fail due to hardware error.
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**/
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EFI_STATUS
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EFIAPI
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RootBridgeIoFlush (
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IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This
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)
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;
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/**
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Gets the attributes that a PCI root bridge supports setting with
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SetAttributes(), and the attributes that a PCI root bridge is currently
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using.
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The GetAttributes() function returns the mask of attributes that this PCI
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root bridge supports and the mask of attributes that the PCI root bridge is
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currently using.
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@param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
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@param Supported A pointer to the mask of attributes that this PCI root
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bridge supports setting with SetAttributes().
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@param Attributes A pointer to the mask of attributes that this PCI root
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|
bridge is currently using.
|
|
|
|
@retval EFI_SUCCESS If Supports is not NULL, then the attributes
|
|
that the PCI root bridge supports is returned
|
|
in Supports. If Attributes is not NULL, then
|
|
the attributes that the PCI root bridge is
|
|
currently using is returned in Attributes.
|
|
@retval EFI_INVALID_PARAMETER Both Supports and Attributes are NULL.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoGetAttributes (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
OUT UINT64 *Supported,
|
|
OUT UINT64 *Attributes
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Sets the attributes for a resource range on a PCI root bridge.
|
|
|
|
@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
|
|
@param Attributes - The mask of attributes to set.
|
|
@param ResourceBase - Pointer to the base address of the resource range
|
|
to be modified by the attributes specified by Attributes.
|
|
@param ResourceLength - Pointer to the length of the resource range to be modified.
|
|
|
|
@retval EFI_SUCCESS - Success.
|
|
@retval EFI_INVALID_PARAMETER - Invalid parameter found.
|
|
@retval EFI_OUT_OF_RESOURCES - Not enough resources to set the attributes upon.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoSetAttributes (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN UINT64 Attributes,
|
|
IN OUT UINT64 *ResourceBase,
|
|
IN OUT UINT64 *ResourceLength
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Retrieves the current resource settings of this PCI root bridge
|
|
in the form of a set of ACPI resource descriptor.
|
|
|
|
@param This - Pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
|
|
@param Resources - Pointer to the resource descriptor that
|
|
describe the current configuration of this PCI root
|
|
bridge.
|
|
|
|
@retval EFI_SUCCESS - Success.
|
|
@retval EFI_UNSUPPORTED - Current configuration of the PCI root bridge
|
|
@retval could not be retrieved.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoConfiguration (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
OUT VOID **Resources
|
|
)
|
|
;
|
|
|
|
extern EFI_CPU_IO2_PROTOCOL *mCpuIo;
|
|
#endif
|