mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-11 14:28:08 +01:00
7c0aa811ec
Signed-off-by: Sergey Isakov <isakov-sl@bk.ru>
572 lines
21 KiB
C
572 lines
21 KiB
C
/** @file
|
|
|
|
The PCI Root Bridge header file.
|
|
|
|
Copyright (c) 1999 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#ifndef _PCI_ROOT_BRIDGE_H_
|
|
#define _PCI_ROOT_BRIDGE_H_
|
|
|
|
#include <PiDxe.h>
|
|
#include <IndustryStandard/Acpi.h>
|
|
#include <IndustryStandard/Pci.h>
|
|
|
|
//
|
|
// Driver Consumed Protocol Prototypes
|
|
//
|
|
#include <Protocol/CpuIo2.h>
|
|
#include <Protocol/DevicePath.h>
|
|
#include <Protocol/PciRootBridgeIo.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/DevicePathLib.h>
|
|
#include <Library/BaseMemoryLib.h>
|
|
#include <Library/DxeServicesTableLib.h>
|
|
#include <Library/UefiBootServicesTableLib.h>
|
|
#include <Library/BaseLib.h>
|
|
#include <Library/PciSegmentLib.h>
|
|
#include <Library/UefiLib.h>
|
|
#include <Library/TimerLib.h>
|
|
#include "PciHostResource.h"
|
|
|
|
|
|
typedef enum {
|
|
IoOperation,
|
|
MemOperation,
|
|
PciOperation
|
|
} OPERATION_TYPE;
|
|
|
|
#define MAP_INFO_SIGNATURE SIGNATURE_32 ('_', 'm', 'a', 'p')
|
|
typedef struct {
|
|
UINT32 Signature;
|
|
LIST_ENTRY Link;
|
|
EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_OPERATION Operation;
|
|
UINTN NumberOfBytes;
|
|
UINTN NumberOfPages;
|
|
EFI_PHYSICAL_ADDRESS HostAddress;
|
|
EFI_PHYSICAL_ADDRESS MappedHostAddress;
|
|
} MAP_INFO;
|
|
#define MAP_INFO_FROM_LINK(a) CR (a, MAP_INFO, Link, MAP_INFO_SIGNATURE)
|
|
|
|
#define PCI_ROOT_BRIDGE_SIGNATURE SIGNATURE_32 ('_', 'p', 'r', 'b')
|
|
|
|
typedef struct {
|
|
UINT32 Signature;
|
|
LIST_ENTRY Link;
|
|
EFI_HANDLE Handle;
|
|
UINT64 AllocationAttributes;
|
|
UINT64 Attributes;
|
|
UINT64 Supports;
|
|
PCI_RES_NODE ResAllocNode[TypeMax];
|
|
PCI_ROOT_BRIDGE_APERTURE Bus;
|
|
PCI_ROOT_BRIDGE_APERTURE Io;
|
|
PCI_ROOT_BRIDGE_APERTURE Mem;
|
|
PCI_ROOT_BRIDGE_APERTURE PMem;
|
|
PCI_ROOT_BRIDGE_APERTURE MemAbove4G;
|
|
PCI_ROOT_BRIDGE_APERTURE PMemAbove4G;
|
|
BOOLEAN DmaAbove4G;
|
|
BOOLEAN NoExtendedConfigSpace;
|
|
VOID *ConfigBuffer;
|
|
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
|
|
CHAR16 *DevicePathStr;
|
|
EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL RootBridgeIo;
|
|
|
|
BOOLEAN ResourceSubmitted;
|
|
LIST_ENTRY Maps;
|
|
} PCI_ROOT_BRIDGE_INSTANCE;
|
|
|
|
#define ROOT_BRIDGE_FROM_THIS(a) CR (a, PCI_ROOT_BRIDGE_INSTANCE, RootBridgeIo, PCI_ROOT_BRIDGE_SIGNATURE)
|
|
|
|
#define ROOT_BRIDGE_FROM_LINK(a) CR (a, PCI_ROOT_BRIDGE_INSTANCE, Link, PCI_ROOT_BRIDGE_SIGNATURE)
|
|
|
|
/**
|
|
Construct the Pci Root Bridge instance.
|
|
|
|
@param Bridge The root bridge instance.
|
|
|
|
@return The pointer to PCI_ROOT_BRIDGE_INSTANCE just created
|
|
or NULL if creation fails.
|
|
**/
|
|
PCI_ROOT_BRIDGE_INSTANCE *
|
|
CreateRootBridge (
|
|
IN PCI_ROOT_BRIDGE *Bridge
|
|
);
|
|
|
|
//
|
|
// Protocol Member Function Prototypes
|
|
//
|
|
/**
|
|
|
|
Poll an address in memory mapped space until an exit condition is met
|
|
or a timeout occurs.
|
|
|
|
@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
|
|
@param Width - Width of the memory operation.
|
|
@param Address - The base address of the memory operation.
|
|
@param Mask - Mask used for polling criteria.
|
|
@param Value - Comparison value used for polling exit criteria.
|
|
@param Delay - Number of 100ns units to poll.
|
|
@param Result - Pointer to the last value read from memory location.
|
|
|
|
@retval EFI_SUCCESS - Success.
|
|
@retval EFI_INVALID_PARAMETER - Invalid parameter found.
|
|
@retval EFI_TIMEOUT - Delay expired before a match occurred.
|
|
@retval EFI_OUT_OF_RESOURCES - Fail due to lack of resources.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoPollMem (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 Address,
|
|
IN UINT64 Mask,
|
|
IN UINT64 Value,
|
|
IN UINT64 Delay,
|
|
OUT UINT64 *Result
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Poll an address in I/O space until an exit condition is met
|
|
or a timeout occurs.
|
|
|
|
@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
|
|
@param Width - Width of I/O operation.
|
|
@param Address - The base address of the I/O operation.
|
|
@param Mask - Mask used for polling criteria.
|
|
@param Value - Comparison value used for polling exit criteria.
|
|
@param Delay - Number of 100ns units to poll.
|
|
@param Result - Pointer to the last value read from memory location.
|
|
|
|
@retval EFI_SUCCESS - Success.
|
|
@retval EFI_INVALID_PARAMETER - Invalid parameter found.
|
|
@retval EFI_TIMEOUT - Delay expired before a match occurred.
|
|
@retval EFI_OUT_OF_RESOURCES - Fail due to lack of resources.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoPollIo (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 Address,
|
|
IN UINT64 Mask,
|
|
IN UINT64 Value,
|
|
IN UINT64 Delay,
|
|
OUT UINT64 *Result
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Allow read from memory mapped I/O space.
|
|
|
|
@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
|
|
@param Width - The width of memory operation.
|
|
@param Address - Base address of the memory operation.
|
|
@param Count - Number of memory opeartion to perform.
|
|
@param Buffer - The destination buffer to store data.
|
|
|
|
@retval EFI_SUCCESS - Success.
|
|
@retval EFI_INVALID_PARAMETER - Invalid parameter found.
|
|
@retval EFI_OUT_OF_RESOURCES - Fail due to lack of resources.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoMemRead (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 Address,
|
|
IN UINTN Count,
|
|
IN OUT VOID *Buffer
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Allow write to memory mapped I/O space.
|
|
|
|
@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
|
|
@param Width - The width of memory operation.
|
|
@param Address - Base address of the memory operation.
|
|
@param Count - Number of memory opeartion to perform.
|
|
@param Buffer - The source buffer to write data from.
|
|
|
|
@retval EFI_SUCCESS - Success.
|
|
@retval EFI_INVALID_PARAMETER - Invalid parameter found.
|
|
@retval EFI_OUT_OF_RESOURCES - Fail due to lack of resources.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoMemWrite (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 Address,
|
|
IN UINTN Count,
|
|
IN OUT VOID *Buffer
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Enable a PCI driver to read PCI controller registers in the
|
|
PCI root bridge I/O space.
|
|
|
|
@param This - A pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
|
|
@param Width - Signifies the width of the memory operation.
|
|
@param UserAddress - The base address of the I/O operation.
|
|
@param Count - The number of I/O operations to perform.
|
|
@param UserBuffer - The destination buffer to store the results.
|
|
|
|
@retval EFI_SUCCESS - The data was read from the PCI root bridge.
|
|
@retval EFI_INVALID_PARAMETER - Invalid parameters found.
|
|
@retval EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of
|
|
@retval resources.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoIoRead (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 UserAddress,
|
|
IN UINTN Count,
|
|
IN OUT VOID *UserBuffer
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Enable a PCI driver to write to PCI controller registers in the
|
|
PCI root bridge I/O space.
|
|
|
|
@param This - A pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
|
|
@param Width - Signifies the width of the memory operation.
|
|
@param UserAddress - The base address of the I/O operation.
|
|
@param Count - The number of I/O operations to perform.
|
|
@param UserBuffer - The source buffer to write data from.
|
|
|
|
@retval EFI_SUCCESS - The data was written to the PCI root bridge.
|
|
@retval EFI_INVALID_PARAMETER - Invalid parameters found.
|
|
@retval EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of
|
|
@retval resources.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoIoWrite (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 UserAddress,
|
|
IN UINTN Count,
|
|
IN OUT VOID *UserBuffer
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Copy one region of PCI root bridge memory space to be copied to
|
|
another region of PCI root bridge memory space.
|
|
|
|
@param This - A pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
|
|
@param Width - Signifies the width of the memory operation.
|
|
@param DestAddress - Destination address of the memory operation.
|
|
@param SrcAddress - Source address of the memory operation.
|
|
@param Count - Number of memory operations to perform.
|
|
|
|
@retval EFI_SUCCESS - The data was copied successfully.
|
|
@retval EFI_INVALID_PARAMETER - Invalid parameters found.
|
|
@retval EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of
|
|
@retval resources.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoCopyMem (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 DestAddress,
|
|
IN UINT64 SrcAddress,
|
|
IN UINTN Count
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Allows read from PCI configuration space.
|
|
|
|
@param This - A pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
|
|
@param Width - Signifies the width of the memory operation.
|
|
@param Address - The address within the PCI configuration space
|
|
for the PCI controller.
|
|
@param Count - The number of PCI configuration operations
|
|
to perform.
|
|
@param Buffer - The destination buffer to store the results.
|
|
|
|
@retval EFI_SUCCESS - The data was read from the PCI root bridge.
|
|
@retval EFI_INVALID_PARAMETER - Invalid parameters found.
|
|
@retval EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of
|
|
@retval resources.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoPciRead (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 Address,
|
|
IN UINTN Count,
|
|
IN OUT VOID *Buffer
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Allows write to PCI configuration space.
|
|
|
|
@param This - A pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
|
|
@param Width - Signifies the width of the memory operation.
|
|
@param Address - The address within the PCI configuration space
|
|
for the PCI controller.
|
|
@param Count - The number of PCI configuration operations
|
|
to perform.
|
|
@param Buffer - The source buffer to get the results.
|
|
|
|
@retval EFI_SUCCESS - The data was written to the PCI root bridge.
|
|
@retval EFI_INVALID_PARAMETER - Invalid parameters found.
|
|
@retval EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of
|
|
@retval resources.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoPciWrite (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 Address,
|
|
IN UINTN Count,
|
|
IN OUT VOID *Buffer
|
|
)
|
|
;
|
|
|
|
/**
|
|
Provides the PCI controller-specific address needed to access
|
|
system memory for DMA.
|
|
|
|
@param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
|
|
@param Operation Indicate if the bus master is going to read or write
|
|
to system memory.
|
|
@param HostAddress The system memory address to map on the PCI controller.
|
|
@param NumberOfBytes On input the number of bytes to map.
|
|
On output the number of bytes that were mapped.
|
|
@param DeviceAddress The resulting map address for the bus master PCI
|
|
controller to use to access the system memory's HostAddress.
|
|
@param Mapping The value to pass to Unmap() when the bus master DMA
|
|
operation is complete.
|
|
|
|
@retval EFI_SUCCESS Success.
|
|
@retval EFI_INVALID_PARAMETER Invalid parameters found.
|
|
@retval EFI_UNSUPPORTED The HostAddress cannot be mapped as a common buffer.
|
|
@retval EFI_DEVICE_ERROR The System hardware could not map the requested address.
|
|
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to lack of resources.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoMap (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_OPERATION Operation,
|
|
IN VOID *HostAddress,
|
|
IN OUT UINTN *NumberOfBytes,
|
|
OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
|
|
OUT VOID **Mapping
|
|
)
|
|
;
|
|
|
|
/**
|
|
Completes the Map() operation and releases any corresponding resources.
|
|
|
|
The Unmap() function completes the Map() operation and releases any
|
|
corresponding resources.
|
|
If the operation was an EfiPciOperationBusMasterWrite or
|
|
EfiPciOperationBusMasterWrite64, the data is committed to the target system
|
|
memory.
|
|
Any resources used for the mapping are freed.
|
|
|
|
@param[in] This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
|
|
@param[in] Mapping The mapping value returned from Map().
|
|
|
|
@retval EFI_SUCCESS The range was unmapped.
|
|
@retval EFI_INVALID_PARAMETER Mapping is not a value that was returned by Map().
|
|
@retval EFI_DEVICE_ERROR The data was not committed to the target system memory.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoUnmap (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN VOID *Mapping
|
|
)
|
|
;
|
|
|
|
/**
|
|
Allocates pages that are suitable for an EfiPciOperationBusMasterCommonBuffer
|
|
or EfiPciOperationBusMasterCommonBuffer64 mapping.
|
|
|
|
@param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
|
|
@param Type This parameter is not used and must be ignored.
|
|
@param MemoryType The type of memory to allocate, EfiBootServicesData or
|
|
EfiRuntimeServicesData.
|
|
@param Pages The number of pages to allocate.
|
|
@param HostAddress A pointer to store the base system memory address of the
|
|
allocated range.
|
|
@param Attributes The requested bit mask of attributes for the allocated
|
|
range. Only the attributes
|
|
EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE,
|
|
EFI_PCI_ATTRIBUTE_MEMORY_CACHED, and
|
|
EFI_PCI_ATTRIBUTE_DUAL_ADDRESS_CYCLE may be used with this
|
|
function.
|
|
|
|
@retval EFI_SUCCESS The requested memory pages were allocated.
|
|
@retval EFI_INVALID_PARAMETER MemoryType is invalid.
|
|
@retval EFI_INVALID_PARAMETER HostAddress is NULL.
|
|
@retval EFI_UNSUPPORTED Attributes is unsupported. The only legal
|
|
attribute bits are MEMORY_WRITE_COMBINE,
|
|
MEMORY_CACHED, and DUAL_ADDRESS_CYCLE.
|
|
@retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoAllocateBuffer (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN EFI_ALLOCATE_TYPE Type,
|
|
IN EFI_MEMORY_TYPE MemoryType,
|
|
IN UINTN Pages,
|
|
OUT VOID **HostAddress,
|
|
IN UINT64 Attributes
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Free memory allocated in AllocateBuffer.
|
|
|
|
@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
|
|
instance.
|
|
@param Pages - Number of pages to free.
|
|
@param HostAddress - The base system memory address of the
|
|
allocated range.
|
|
|
|
@retval EFI_SUCCESS - Requested memory pages were freed.
|
|
@retval EFI_INVALID_PARAMETER - Invalid parameter found.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoFreeBuffer (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
IN UINTN Pages,
|
|
OUT VOID *HostAddress
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Flushes all PCI posted write transactions from a PCI host
|
|
bridge to system memory.
|
|
|
|
@param This - Pointer to EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL instance.
|
|
|
|
@retval EFI_SUCCESS - PCI posted write transactions were flushed
|
|
@retval from PCI host bridge to system memory.
|
|
@retval EFI_DEVICE_ERROR - Fail due to hardware error.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoFlush (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This
|
|
)
|
|
;
|
|
|
|
/**
|
|
Gets the attributes that a PCI root bridge supports setting with
|
|
SetAttributes(), and the attributes that a PCI root bridge is currently
|
|
using.
|
|
|
|
The GetAttributes() function returns the mask of attributes that this PCI
|
|
root bridge supports and the mask of attributes that the PCI root bridge is
|
|
currently using.
|
|
|
|
@param This A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.
|
|
@param Supported A pointer to the mask of attributes that this PCI root
|
|
bridge supports setting with SetAttributes().
|
|
@param Attributes A pointer to the mask of attributes that this PCI root
|
|
bridge is currently using.
|
|
|
|
@retval EFI_SUCCESS If Supports is not NULL, then the attributes
|
|
that the PCI root bridge supports is returned
|
|
in Supports. If Attributes is not NULL, then
|
|
the attributes that the PCI root bridge is
|
|
currently using is returned in Attributes.
|
|
@retval EFI_INVALID_PARAMETER Both Supports and Attributes are NULL.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RootBridgeIoGetAttributes (
|
|
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *This,
|
|
OUT UINT64 *Supported,
|
|
OUT UINT64 *Attributes
|
|
)
|
|
;
|
|
|
|
/**
|
|
|
|
Sets 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
|