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Diffstat (limited to 'Silicon/Intel/PurleyRcPkg/Library/MmPciBaseLib/MmPciBaseLib.c')
-rw-r--r-- | Silicon/Intel/PurleyRcPkg/Library/MmPciBaseLib/MmPciBaseLib.c | 75 |
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)); +} |