HardwareInfoPciHostBridgeLib.h

Go to the documentation of this file.

 
#ifndef __HARDWARE_INFO_PCI_HOST_BRIDGE_LIB_H__
#define __HARDWARE_INFO_PCI_HOST_BRIDGE_LIB_H__
 
#include <Uefi/UefiBaseType.h>
#include <Uefi/UefiSpec.h>
#include <Library/PciHostBridgeLib.h>
 
//
// Host Bridge resources information
//
#pragma pack(1)
typedef struct {
  //
  // Feature tracking, initially 0
  //
  UINT64    Version;
 
  //
  // Host bridge enabled attributes (EFI_PCI_ATTRIBUTE_*)
  //
  UINT64    Attributes;
 
  union {
    UINT32    Uint32;
    struct {
      UINT32    DmaAbove4G            : 1;
      UINT32    NoExtendedConfigSpace : 1;
      UINT32    CombineMemPMem        : 1;
      UINT32    Reserved              : 29;
    } Bits;
  } Flags;
 
  //
  // Bus number range
  //
  UINT8     BusNrStart;
  UINT8     BusNrLast;
 
  UINT8     Padding[2];
 
  //
  // IO aperture
  //
  UINT64    IoStart;
  UINT64    IoSize;
 
  //
  // 32-bit MMIO aperture
  //
  UINT64    MemStart;
  UINT64    MemSize;
 
  //
  // 32-bit prefetchable MMIO aperture
  //
  UINT64    PMemStart;
  UINT64    PMemSize;
 
  //
  // 64-bit MMIO aperture
  //
  UINT64    MemAbove4GStart;
  UINT64    MemAbove4GSize;
 
  //
  // 64-bit prefetchable MMIO aperture
  //
  UINT64    PMemAbove4GStart;
  UINT64    PMemAbove4GSize;
 
  //
  // MMIO accessible PCIe config space (ECAM)
  //
  UINT64    PcieConfigStart;
  UINT64    PcieConfigSize;
} HOST_BRIDGE_INFO;
#pragma pack()
 
EFI_STATUS
HardwareInfoPciHostBridgeLastMmioAddress (
  IN CONST  HOST_BRIDGE_INFO  *HostBridge,
  IN        UINTN             DataSize,
  IN        BOOLEAN           HighMem,
  OUT       UINT64            *LastMmioAddress
  );
 
EFI_STATUS
HardwareInfoPciHostBridgeGetBusNrRange (
  IN CONST  HOST_BRIDGE_INFO  *HostBridge,
  IN        UINTN             DataSize,
  OUT       UINTN             *BusNrStart,
  OUT       UINTN             *BusNrLast
  );
 
EFI_STATUS
HardwareInfoPciHostBridgeGetApertures (
  IN  CONST HOST_BRIDGE_INFO          *HostBridge,
  IN        UINTN                     DataSize,
  OUT       PCI_ROOT_BRIDGE_APERTURE  *Io,
  OUT       PCI_ROOT_BRIDGE_APERTURE  *Mem,
  OUT       PCI_ROOT_BRIDGE_APERTURE  *MemAbove4G,
  OUT       PCI_ROOT_BRIDGE_APERTURE  *PMem,
  OUT       PCI_ROOT_BRIDGE_APERTURE  *PMemAbove4G,
  OUT       PCI_ROOT_BRIDGE_APERTURE  *PcieConfig
  );
 
EFI_STATUS
HardwareInfoPciHostBridgeGetFlags (
  IN CONST  HOST_BRIDGE_INFO  *HostBridge,
  IN        UINTN             DataSize,
  OUT       UINT64            *Attributes               OPTIONAL,
  OUT       BOOLEAN           *DmaAbove4G               OPTIONAL,
  OUT       BOOLEAN           *NoExtendedConfigSpace    OPTIONAL,
  OUT       BOOLEAN           *CombineMemPMem           OPTIONAL
  );
 
EFI_STATUS
HardwareInfoPciHostBridgeGet (
  IN CONST  HOST_BRIDGE_INFO          *HostBridge,
  IN        UINTN                     DataSize,
  OUT       UINTN                     *BusNrStart,
  OUT       UINTN                     *BusNrLast,
  OUT       UINT64                    *Attributes               OPTIONAL,
  OUT       BOOLEAN                   *DmaAbove4G               OPTIONAL,
  OUT       BOOLEAN                   *NoExtendedConfigSpace    OPTIONAL,
  OUT       BOOLEAN                   *CombineMemPMem           OPTIONAL,
  OUT       PCI_ROOT_BRIDGE_APERTURE  *Io                       OPTIONAL,
  OUT       PCI_ROOT_BRIDGE_APERTURE  *Mem                      OPTIONAL,
  OUT       PCI_ROOT_BRIDGE_APERTURE  *MemAbove4G               OPTIONAL,
  OUT       PCI_ROOT_BRIDGE_APERTURE  *PMem                     OPTIONAL,
  OUT       PCI_ROOT_BRIDGE_APERTURE  *PMemAbove4G              OPTIONAL,
  OUT       PCI_ROOT_BRIDGE_APERTURE  *PcieConfig               OPTIONAL
  );
 
#endif // __HARDWARE_INFO_PCI_HOST_BRIDGE_LIB_H__