1 files changed, 92 insertions, 0 deletions
diff --git a/Silicon/Intel/PurleyRcPkg/Library/DxeMmPciBaseLib/SmmMmPciBaseLib.c b/Silicon/Intel/PurleyRcPkg/Library/DxeMmPciBaseLib/SmmMmPciBaseLib.c
new file mode 100644
index 0000000000..913e90809f
--- /dev/null
+++ b/Silicon/Intel/PurleyRcPkg/Library/DxeMmPciBaseLib/SmmMmPciBaseLib.c
@@ -0,0 +1,92 @@
+/** @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 <PiDxe.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/SmmServicesTableLib.h>
+#include <Protocol/SiliconRegAccess.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiLib.h>
+
+USRA_PROTOCOL     *mPciUsra   = NULL;
+
+/**
+  The constructor function initialize UsraProtocol.
+  @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+SmmMmPciLibConstructor (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  EFI_STATUS  Status;
+
+  if (mPciUsra == NULL) 
+  {
+    //
+    // USRA protocol need to be installed before the module access USRA.
+    // 
+    Status = gSmst->SmmLocateProtocol (&gUsraProtocolGuid, NULL, &mPciUsra);
+    ASSERT_EFI_ERROR (Status);
+    ASSERT (mPciUsra != NULL);
+  }
+  return EFI_SUCCESS;
+}
+
+/**
+  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);
+  return mPciUsra->GetRegAddr (&Address);
+}
+
+/**
+  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);
+  return mPciUsra->GetRegAddr (&Address);
+}