diff options
Diffstat (limited to 'Platform/Intel/KabylakeOpenBoardPkg/Features/Tbt/Library/PeiDxeSmmTbtCommonLib/TbtCommonLib.c')
| -rw-r--r-- | Platform/Intel/KabylakeOpenBoardPkg/Features/Tbt/Library/PeiDxeSmmTbtCommonLib/TbtCommonLib.c | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/Platform/Intel/KabylakeOpenBoardPkg/Features/Tbt/Library/PeiDxeSmmTbtCommonLib/TbtCommonLib.c b/Platform/Intel/KabylakeOpenBoardPkg/Features/Tbt/Library/PeiDxeSmmTbtCommonLib/TbtCommonLib.c new file mode 100644 index 0000000000..4f2690ca56 --- /dev/null +++ b/Platform/Intel/KabylakeOpenBoardPkg/Features/Tbt/Library/PeiDxeSmmTbtCommonLib/TbtCommonLib.c @@ -0,0 +1,321 @@ +/** @file
+ PeiTbtInit library implementition with empty functions.
+
+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/DebugLib.h>
+#include <Uefi/UefiBaseType.h>
+#include <Library/PchPcieRpLib.h>
+#include <Library/TbtCommonLib.h>
+#include <Library/PciSegmentLib.h>
+#include <Library/TimerLib.h>
+#include <Library/BaseLib.h>
+#include <Library/GpioLib.h>
+
+
+/**
+ Selects the proper TBT Root port to assign resources
+ based on the user input value
+
+ @param[in] SetupData Pointer to Setup data
+
+ @retval TbtSelectorChosen Rootport number.
+**/
+VOID
+GetRootporttoSetResourcesforTbt (
+ IN UINTN RpIndex,
+ OUT UINT8 *RsvdExtraBusNum,
+ OUT UINT16 *RsvdPcieMegaMem,
+ OUT UINT8 *PcieMemAddrRngMax,
+ OUT UINT16 *RsvdPciePMegaMem,
+ OUT UINT8 *PciePMemAddrRngMax,
+ OUT BOOLEAN *SetResourceforTbt
+ )
+{
+ UINTN TbtRpNumber;
+ TbtRpNumber = (UINTN) PcdGet8 (PcdDTbtPcieRpNumber);
+
+ if (RpIndex == (TbtRpNumber - 1)) {
+ *RsvdExtraBusNum = PcdGet8 (PcdDTbtPcieExtraBusRsvd);
+ *RsvdPcieMegaMem = PcdGet16 (PcdDTbtPcieMemRsvd);
+ *PcieMemAddrRngMax = PcdGet8 (PcdDTbtPcieMemAddrRngMax);
+ *RsvdPciePMegaMem = PcdGet16 (PcdDTbtPciePMemRsvd);
+ *PciePMemAddrRngMax = PcdGet8 (PcdDTbtPciePMemAddrRngMax);
+ *SetResourceforTbt = TRUE;
+ }
+ else {
+ *SetResourceforTbt = FALSE;
+ }
+ }
+
+/**
+ Internal function to Wait for Tbt2PcieDone Bit.to Set or clear
+ @param[in] CommandOffsetAddress Tbt2Pcie Register Address
+ @param[in] TimeOut Time out with 100 ms garnularity
+ @param[in] Tbt2PcieDone Wait condition (wait for Bit to Clear/Set)
+ @param[out] *Tbt2PcieValue Function Register value
+**/
+BOOLEAN
+InternalWaitforCommandCompletion(
+ IN UINT64 CommandOffsetAddress,
+ IN UINT32 TimeOut,
+ IN BOOLEAN Tbt2PcieDone,
+ OUT UINT32 *Tbt2PcieValue
+ )
+{
+ BOOLEAN ReturnFlag;
+ UINT32 Tbt2PcieCheck;
+
+ ReturnFlag = FALSE;
+ while (TimeOut-- > 0) {
+ *Tbt2PcieValue = PciSegmentRead32 (CommandOffsetAddress);
+
+ if (0xFFFFFFFF == *Tbt2PcieValue ) {
+ //
+ // Device is not here return now
+ //
+ ReturnFlag = FALSE;
+ break;
+ }
+
+ if(Tbt2PcieDone) {
+ Tbt2PcieCheck = *Tbt2PcieValue & TBT2PCIE_DON_R;
+ } else {
+ Tbt2PcieCheck = !(*Tbt2PcieValue & TBT2PCIE_DON_R);
+ }
+
+ if (Tbt2PcieCheck) {
+ ReturnFlag = TRUE;
+ break;
+ }
+
+ MicroSecondDelay(TBT_MAIL_BOX_DELAY);
+ }
+ return ReturnFlag;
+}
+/**
+ Get Security Level.
+ @param[in] Bus Bus number Host Router (DTBT)
+ @param[in] Device Device number for Host Router (DTBT)
+ @param[in] Function Function number for Host Router (DTBT)
+ @param[in] Command Command for Host Router (DTBT)
+ @param[in] Timeout Time out with 100 ms garnularity
+**/
+UINT8
+GetSecLevel (
+ IN UINT8 Bus,
+ IN UINT8 Device,
+ IN UINT8 Function,
+ IN UINT8 Command,
+ IN UINT32 Timeout
+ )
+{
+ UINT64 Pcie2Tbt;
+ UINT64 Tbt2Pcie;
+ UINT32 RegisterValue;
+ UINT8 ReturnFlag;
+
+ ReturnFlag = 0xFF;
+
+ DEBUG ((DEBUG_INFO, "GetSecLevel() \n"));
+
+ GET_TBT2PCIE_REGISTER_ADDRESS(0, Bus, Device, Function, Tbt2Pcie)
+ GET_PCIE2TBT_REGISTER_ADDRESS(0, Bus, Device, Function, Pcie2Tbt)
+
+ PciSegmentWrite32 (Pcie2Tbt, Command | PCIE2TBT_VLD_B);
+
+ if(InternalWaitforCommandCompletion(Tbt2Pcie, Timeout, TRUE, &RegisterValue)) {
+ ReturnFlag = (UINT8) (0xFF & (RegisterValue >> 8));
+ }
+
+ PciSegmentWrite32 (Pcie2Tbt, 0);
+
+ InternalWaitforCommandCompletion(Tbt2Pcie, Timeout, FALSE, &RegisterValue);
+ DEBUG ((DEBUG_INFO, "Security Level configured to %x \n", ReturnFlag));
+
+ return ReturnFlag;
+}
+
+/**
+ Set Security Level.
+ @param[in] Data Security State
+ @param[in] Bus Bus number for Host Router (DTBT)
+ @param[in] Device Device number for Host Router (DTBT)
+ @param[in] Function Function number for Host Router (DTBT)
+ @param[in] Command Command for Host Router (DTBT)
+ @param[in] Timeout Time out with 100 ms garnularity
+**/
+BOOLEAN
+SetSecLevel (
+ IN UINT8 Data,
+ IN UINT8 Bus,
+ IN UINT8 Device,
+ IN UINT8 Function,
+ IN UINT8 Command,
+ IN UINT32 Timeout
+ )
+{
+ UINT64 Pcie2Tbt;
+ UINT64 Tbt2Pcie;
+ UINT32 RegisterValue;
+ BOOLEAN ReturnFlag;
+
+ ReturnFlag = FALSE;
+
+ DEBUG ((DEBUG_INFO, "SetSecLevel() \n"));
+
+ GET_TBT2PCIE_REGISTER_ADDRESS(0, Bus, Device, Function, Tbt2Pcie)
+ GET_PCIE2TBT_REGISTER_ADDRESS(0, Bus, Device, Function, Pcie2Tbt)
+
+ PciSegmentWrite32 (Pcie2Tbt, (Data << 8) | Command | PCIE2TBT_VLD_B);
+
+ ReturnFlag = InternalWaitforCommandCompletion(Tbt2Pcie, Timeout, TRUE, &RegisterValue);
+ DEBUG ((DEBUG_INFO, "RegisterValue %x \n", RegisterValue));
+ PciSegmentWrite32 (Pcie2Tbt, 0);
+
+ InternalWaitforCommandCompletion(Tbt2Pcie, Timeout, FALSE, &RegisterValue);
+ DEBUG ((DEBUG_INFO, "Return value %x \n", ReturnFlag));
+ return ReturnFlag;
+}
+
+/**
+Based on the Security Mode Selection, BIOS drives FORCE_PWR.
+
+@param[in] GpioNumber
+@param[in] Value
+**/
+VOID
+ForceDtbtPower(
+ IN UINT8 GpioAccessType,
+ IN UINT8 Expander,
+ IN UINT32 GpioNumber,
+ IN BOOLEAN Value
+)
+{
+ if (GpioAccessType == 0x01) {
+ // PCH
+ GpioSetOutputValue (GpioNumber, (UINT32)Value);
+ } else if (GpioAccessType == 0x02) {
+ // IoExpander {TCA6424A}
+ GpioExpSetOutput (Expander, (UINT8)GpioNumber, (UINT8)Value);
+ }
+}
+
+/**
+Execute TBT Mail Box Command
+
+@param[in] Command TBT Command
+@param[in] Bus Bus number for Host Router (DTBT)
+@param[in] Device Device number for Host Router (DTBT)
+@param[in] Function Function number for Host Router (DTBT)
+@param[in] Timeout Time out with 100 ms garnularity
+@Retval true if command executes succesfully
+**/
+BOOLEAN
+TbtSetPcie2TbtCommand(
+ IN UINT8 Command,
+ IN UINT8 Bus,
+ IN UINT8 Device,
+ IN UINT8 Function,
+ IN UINT32 Timeout
+)
+{
+ UINT64 Pcie2Tbt;
+ UINT64 Tbt2Pcie;
+ UINT32 RegisterValue;
+ BOOLEAN ReturnFlag;
+
+ GET_TBT2PCIE_REGISTER_ADDRESS(0, Bus, Device, Function, Tbt2Pcie)
+ GET_PCIE2TBT_REGISTER_ADDRESS(0, Bus, Device, Function, Pcie2Tbt)
+
+ PciSegmentWrite32 (Pcie2Tbt, Command | PCIE2TBT_VLD_B);
+
+ ReturnFlag = InternalWaitforCommandCompletion(Tbt2Pcie, Timeout, TRUE, &RegisterValue);
+
+ PciSegmentWrite32(Pcie2Tbt, 0);
+
+ return ReturnFlag;
+}
+/**
+ Get Pch/Peg Pcie Root Port Device and Function Number for TBT by Root Port physical Number
+
+ @param[in] RpNumber Root port physical number. (0-based)
+ @param[out] RpDev Return corresponding root port device number.
+ @param[out] RpFun Return corresponding root port function number.
+
+ @retval EFI_SUCCESS Root port device and function is retrieved
+ @retval EFI_INVALID_PARAMETER If Invalid Root Port Number or TYPE is Passed
+**/
+EFI_STATUS
+EFIAPI
+GetDTbtRpDevFun (
+ IN BOOLEAN Type,
+ IN UINTN RpNumber,
+ OUT UINTN *RpDev,
+ OUT UINTN *RpFunc
+ )
+{
+ EFI_STATUS Status;
+ UINTN TbtRpDev;
+ UINTN TbtRpFunc;
+
+ Status = EFI_INVALID_PARAMETER; // Update the Status to EFI_SUCCESS if valid input found.
+ //
+ // CNL PCH-H can support up to 24 root ports. PEG0,PEG1 and PEG2 will be
+ // with device number 0x1 and Function number 0,1 and 2 respectively.
+ //
+ if (Type == DTBT_TYPE_PEG)
+ {
+ //
+ // PEG Rootport
+ //
+ if (RpNumber <= 2) {
+ *RpDev = 0x01;
+ *RpFunc = RpNumber;
+ Status = EFI_SUCCESS;
+ }
+ }
+ if (Type == DTBT_TYPE_PCH)
+ {
+ //
+ // PCH Rootport
+ //
+ if (RpNumber <= 23) {
+ Status = GetPchPcieRpDevFun (RpNumber, &TbtRpDev, &TbtRpFunc);
+ *RpDev = TbtRpDev;
+ *RpFunc = TbtRpFunc;
+ }
+ }
+
+ ASSERT_EFI_ERROR (Status);
+ return Status;
+}
+
+BOOLEAN
+IsTbtHostRouter (
+ IN UINT16 DeviceID
+ )
+{
+ switch (DeviceID) {
+ case AR_HR_2C:
+ case AR_HR_4C:
+ case AR_HR_LP:
+ case AR_HR_C0_2C:
+ case AR_HR_C0_4C:
+ case TR_HR_2C:
+ case TR_HR_4C:
+ return TRUE;
+ }
+
+ return FALSE;
+} // IsTbtHostRouter
+
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