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/** @file
Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <Library/MmPciBaseLib.h>
/**
This procedure will get PCIE address
@param[in] Bus Pci Bus Number
@param[in] Device Pci Device Number
@param[in] Function Pci Function Number
@retval PCIE address
**/
UINTN
MmPciBase (
IN UINT32 Bus,
IN UINT32 Device,
IN UINT32 Function
)
{
USRA_ADDRESS Address;
USRA_PCIE_ADDRESS(Address, UsraWidth32, Bus, Device, Function, 0);
if (!FeaturePcdGet (PcdSingleSegFixMmcfg))
{
return GetRegisterAddress(&Address);
}
//
// If the PcdSingleSegFixMmcfg is true, do the following with static PcdPciExpressBaseAddress
//
return ((UINTN) (PcdGet64(PcdPciExpressBaseAddress)) + (UINTN) (Address.Attribute.RawData32[0] & 0x00ffffff));
}
/**
This procedure will get PCIE address
@param[in] Seg Pcie Segment Number
@param[in] Bus Pcie Bus Number
@param[in] Device Pcie Device Number
@param[in] Function Pcie Function Number
@retval PCIE address
**/
UINTN
MmPciAddress(
IN UINT32 Seg,
IN UINT32 Bus,
IN UINT32 Device,
IN UINT32 Function,
IN UINT32 Register
)
{
USRA_ADDRESS Address;
USRA_PCIE_SEG_ADDRESS(Address, UsraWidth32, Seg, Bus, Device, Function, Register);
if (!FeaturePcdGet(PcdSingleSegFixMmcfg))
{
return GetRegisterAddress(&Address);
}
//
// If the PcdSingleSegFixMmcfg is true, do the following with static PcdPciExpressBaseAddress
//
return ((UINTN)(PcdGet64(PcdPciExpressBaseAddress)) + (UINTN)(Address.Attribute.RawData32[0] & 0x00ffffff));
}
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