/** @file
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Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Library/MmPciBaseLib.h>
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/**
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This procedure will get PCIE address
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@param[in] Bus Pci Bus Number
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@param[in] Device Pci Device Number
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@param[in] Function Pci Function Number
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@retval PCIE address
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**/
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UINTN
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MmPciBase (
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IN UINT32 Bus,
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IN UINT32 Device,
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IN UINT32 Function
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)
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{
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USRA_ADDRESS Address;
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USRA_PCIE_ADDRESS(Address, UsraWidth32, Bus, Device, Function, 0);
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if (!FeaturePcdGet (PcdSingleSegFixMmcfg))
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{
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return GetRegisterAddress(&Address);
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}
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//
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// If the PcdSingleSegFixMmcfg is true, do the following with static PcdPciExpressBaseAddress
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//
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return ((UINTN) (PcdGet64(PcdPciExpressBaseAddress)) + (UINTN) (Address.Attribute.RawData32[0] & 0x00ffffff));
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}
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/**
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This procedure will get PCIE address
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@param[in] Seg Pcie Segment Number
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@param[in] Bus Pcie Bus Number
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@param[in] Device Pcie Device Number
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@param[in] Function Pcie Function Number
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@retval PCIE address
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**/
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UINTN
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MmPciAddress(
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IN UINT32 Seg,
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IN UINT32 Bus,
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IN UINT32 Device,
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IN UINT32 Function,
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IN UINT32 Register
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)
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{
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USRA_ADDRESS Address;
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USRA_PCIE_SEG_ADDRESS(Address, UsraWidth32, Seg, Bus, Device, Function, Register);
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if (!FeaturePcdGet(PcdSingleSegFixMmcfg))
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{
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return GetRegisterAddress(&Address);
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}
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//
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// If the PcdSingleSegFixMmcfg is true, do the following with static PcdPciExpressBaseAddress
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//
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return ((UINTN)(PcdGet64(PcdPciExpressBaseAddress)) + (UINTN)(Address.Attribute.RawData32[0] & 0x00ffffff));
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}
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