1 files changed, 75 insertions, 0 deletions
diff --git a/Silicon/Intel/PurleyRcPkg/Library/MmPciBaseLib/MmPciBaseLib.c b/Silicon/Intel/PurleyRcPkg/Library/MmPciBaseLib/MmPciBaseLib.c
new file mode 100644
index 0000000000..6381cb30eb
--- /dev/null
+++ b/Silicon/Intel/PurleyRcPkg/Library/MmPciBaseLib/MmPciBaseLib.c
@@ -0,0 +1,75 @@
+/** @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));
+}