/** @file Header file for PCH Init SMM Handler Copyright (c) 2019 - 2020 Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent **/ #ifndef _PCH_INIT_SMM_H_ #define _PCH_INIT_SMM_H_ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include extern EFI_SMM_IO_TRAP_DISPATCH2_PROTOCOL *mPchIoTrap; extern EFI_SMM_SX_DISPATCH2_PROTOCOL *mSxDispatch; extern PCH_NVS_AREA *mPchNvsArea; extern UINT16 mAcpiBaseAddr; extern EFI_PHYSICAL_ADDRESS mResvMmioBaseAddr; extern UINTN mResvMmioSize; // // NOTE: The module variables of policy here are only valid in post time, but not runtime time. // extern PCH_CONFIG_HOB *mPchConfigHob; extern SI_CONFIG_HOB_DATA *mSiConfigHobData; /** Register PCIE Hotplug SMI dispatch function to handle Hotplug enabling @param[in] ImageHandle The image handle of this module @param[in] SystemTable The EFI System Table @retval EFI_SUCCESS The function completes successfully **/ EFI_STATUS EFIAPI InitializePchPcieSmm ( IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable ); /** PCIE Hotplug SMI call back function for each Root port @param[in] DispatchHandle Handle of this dispatch function @param[in] RpContext Rootport context, which contains RootPort Index, and RootPort PCI BDF. **/ VOID EFIAPI PchPcieSmiRpHandlerFunction ( IN EFI_HANDLE DispatchHandle, IN PCH_PCIE_SMI_RP_CONTEXT *RpContext ); /** PCIE Link Active State Change Hotplug SMI call back function for all Root ports @param[in] DispatchHandle Handle of this dispatch function @param[in] RpContext Rootport context, which contains RootPort Index, and RootPort PCI BDF. **/ VOID EFIAPI PchPcieLinkActiveStateChange ( IN EFI_HANDLE DispatchHandle, IN PCH_PCIE_SMI_RP_CONTEXT *RpContext ); /** PCIE Link Equalization Request SMI call back function for all Root ports @param[in] DispatchHandle Handle of this dispatch function @param[in] RpContext Rootport context, which contains RootPort Index, and RootPort PCI BDF. **/ VOID EFIAPI PchPcieLinkEqHandlerFunction ( IN EFI_HANDLE DispatchHandle, IN PCH_PCIE_SMI_RP_CONTEXT *RpContext ); /** An IoTrap callback to config PCIE power management settings @param[in] DispatchHandle - The handle of this callback, obtained when registering @param[in] DispatchContext - Pointer to the EFI_SMM_IO_TRAP_DISPATCH_CALLBACK_CONTEXT **/ VOID EFIAPI PchPcieIoTrapSmiCallback ( IN EFI_HANDLE DispatchHandle, IN EFI_SMM_IO_TRAP_CONTEXT *CallbackContext, IN OUT VOID *CommBuffer, IN OUT UINTN *CommBufferSize ); /** Initializes the PCH SMM handler for PCH save and restore @param[in] ImageHandle - Handle for the image of this driver @param[in] SystemTable - Pointer to the EFI System Table @retval EFI_SUCCESS - PCH SMM handler was installed **/ EFI_STATUS EFIAPI PchInitLateSmm ( IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable ); /** Register dispatch function to handle GPIO pads Sx isolation **/ VOID InitializeGpioSxIsolationSmm ( VOID ); /** Entry point for Pch Bios Write Protect driver. @param[in] ImageHandle Image handle of this driver. @param[in] SystemTable Global system service table. @retval EFI_SUCCESS Initialization complete. **/ EFI_STATUS EFIAPI InstallPchBiosWriteProtect ( IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable ); /** This fuction install SPI ASYNC SMI handler. @retval EFI_SUCCESS Initialization complete. **/ EFI_STATUS EFIAPI InstallPchSpiAsyncSmiHandler ( VOID ); #endif