/* * This file is part of the coreboot project. * * Copyright (C) 2012 Advanced Micro Devices, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ /*---------------------------------------------------------------------------------------- * M O D U L E S U S E D *---------------------------------------------------------------------------------------- */ #include #include #include "agesawrapper.h" #include "BiosCallOuts.h" #include "cpuRegisters.h" #include "cpuCacheInit.h" #include "cpuApicUtilities.h" #include "cpuEarlyInit.h" #include "cpuLateInit.h" #include "Dispatcher.h" #include "cpuCacheInit.h" #include "amdlib.h" #include "heapManager.h" #include "Filecode.h" #include #define FILECODE UNASSIGNED_FILE_FILECODE /*---------------------------------------------------------------------------------------- * D E F I N I T I O N S A N D M A C R O S *---------------------------------------------------------------------------------------- */ /* ACPI table pointers returned by AmdInitLate */ VOID *DmiTable = NULL; VOID *AcpiPstate = NULL; VOID *AcpiSrat = NULL; VOID *AcpiSlit = NULL; VOID *AcpiWheaMce = NULL; VOID *AcpiWheaCmc = NULL; VOID *AcpiAlib = NULL; /*---------------------------------------------------------------------------------------- * T Y P E D E F S A N D S T R U C T U R E S *---------------------------------------------------------------------------------------- */ /*---------------------------------------------------------------------------------------- * P R O T O T Y P E S O F L O C A L F U N C T I O N S *---------------------------------------------------------------------------------------- */ /*---------------------------------------------------------------------------------------- * E X P O R T E D F U N C T I O N S *---------------------------------------------------------------------------------------- */ /*--------------------------------------------------------------------------------------- * L O C A L F U N C T I O N S *--------------------------------------------------------------------------------------- */ /*Get the Bus Number from CONFIG_MMCONF_BUS_NUMBER, Please reference AMD BIOS BKDG docuemt about it*/ /* BusRange: bus range identifier. Read-write. Reset: X. This specifies the number of buses in the MMIO configuration space range. The size of the MMIO configuration space range varies with this field as follows: the size is 1 Mbyte times the number of buses. This field is encoded as follows: Bits Buses Bits Buses 0h 1 5h 32 1h 2 6h 64 2h 4 7h 128 3h 8 8h 256 4h 16 Fh-9h Reserved */ UINT8 GetEndBusNum ( VOID ) { UINT64 BusNum; UINT8 Index; for (Index = 1; Index <= 8; Index ++ ) { BusNum = CONFIG_MMCONF_BUS_NUMBER >> Index; if (BusNum == 1 ) { break; } } return Index; } static UINT32 amdinitcpuio(VOID) { AGESA_STATUS Status; UINT64 MsrReg; UINT32 PciData; PCI_ADDR PciAddress; AMD_CONFIG_PARAMS StdHeader; UINT32 TopMem; UINT32 NodeCnt; UINT32 Node; UINT32 SbLink; UINT32 Index; /* get the number of coherent nodes in the system */ PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18, 0, 0x60); LibAmdPciRead(AccessWidth32, PciAddress, &PciData, &StdHeader); NodeCnt = ((PciData >> 4) & 7) + 1; //NodeCnt[6:4] /* Find out the Link ID of Node0 that connects to the * Southbridge (system IO hub). e.g. family10 MCM Processor, * SbLink is Processor0 Link2, internal Node0 Link3 */ PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18, 0, 0x64); LibAmdPciRead(AccessWidth32, PciAddress, &PciData, &StdHeader); SbLink = (PciData >> 8) & 3; //assume ganged /* Enable MMIO on AMD CPU Address Map Controller for all nodes */ for (Node = 0; Node < NodeCnt; Node ++) { /* clear all MMIO Mapped Base/Limit Registers */ for (Index = 0; Index < 8; Index ++) { PciData = 0x00000000; PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18 + Node, 1, 0x80 + Index * 8); LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18 + Node, 1, 0x84 + Index * 8); LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); } /* clear all IO Space Base/Limit Registers */ for (Index = 0; Index < 4; Index ++) { PciData = 0x00000000; PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18 + Node, 1, 0xC0 + Index * 8); LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18 + Node, 1, 0xC4 + Index * 8); LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); } /* Enable MMIO on AMD CPU Address Map Controller */ /* Set VGA Ram MMIO 0000A0000-0000BFFFF to Node0 sbLink */ PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18 + Node, 1, 0x80); PciData = (0xA0000 >> 8) |3; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18 + Node, 1, 0x84); PciData = 0xB0000 >> 8; PciData &= (~0xFF); PciData |= SbLink << 4; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); /* Set UMA MMIO. */ PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18 + Node, 1, 0x88); LibAmdMsrRead (0xC001001A, &MsrReg, &StdHeader); TopMem = (UINT32)MsrReg; MsrReg = (MsrReg >> 8) | 3; PciData = (UINT32)MsrReg; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18 + Node, 1, 0x8c); if (TopMem <= CONFIG_MMCONF_BASE_ADDRESS) { PciData = (CONFIG_MMCONF_BASE_ADDRESS - 1) >> 8; } else { PciData = (0x100000000ull - 1) >> 8; } PciData &= (~0xFF); PciData |= SbLink << 4; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); /* Set PCIE MMIO. */ PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18 + Node, 1, 0x90); PciData = (CONFIG_MMCONF_BASE_ADDRESS >> 8) |3; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18 + Node, 1, 0x94); PciData = (( CONFIG_MMCONF_BASE_ADDRESS + CONFIG_MMCONF_BUS_NUMBER * 4096 *256 - 1) >> 8) & (~0xFF); PciData &= (~0xFF); PciData |= MMIO_NP_BIT; PciData |= SbLink << 4; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); /* Set XAPIC MMIO. 24K */ PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18 + Node, 1, 0x98); PciData = (0xFEC00000 >> 8) |3; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18 + Node, 1, 0x9c); PciData = ((0xFEC00000 + 6 * 4096 - 1) >> 8); PciData &= (~0xFF); PciData |= MMIO_NP_BIT; PciData |= SbLink << 4; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); /* Set Local APIC MMIO. 4K*4= 16K, Llano CPU are 4 cores */ PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18 + Node, 1, 0xA0); PciData = (0xFEE00000 >> 8) |3; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18 + Node, 1, 0xA8); PciData = (0xFEE00000 + 4 * 4096 - 1) >> 8; PciData &= (~0xFF); PciData |= MMIO_NP_BIT; PciData |= SbLink << 4; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); /* Set PCIO: 0x0 - 0xFFF000 and enabled VGA IO*/ PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18 + Node, 1, 0xC0); PciData = 0x13; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18 + Node, 1, 0xC4); PciData = 0x00FFF000; PciData &= (~0x7F); PciData |= SbLink << 4; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); } Status = AGESA_SUCCESS; return (UINT32)Status; } UINT32 agesawrapper_amdinitmmio ( VOID ) { AGESA_STATUS Status; UINT64 MsrReg; UINT32 PciData; PCI_ADDR PciAddress; AMD_CONFIG_PARAMS StdHeader; /* Set the MMIO Configuration Base Address and Bus Range onto MMIO configuration base Address MSR register. */ MsrReg = CONFIG_MMCONF_BASE_ADDRESS | (GetEndBusNum () << 2) | 1; LibAmdMsrWrite (0xC0010058, &MsrReg, &StdHeader); /* Set the NB_CFG MSR register. Enable CF8 extended configuration cycles. */ LibAmdMsrRead (0xC001001F, &MsrReg, &StdHeader); MsrReg = MsrReg | BIT46; LibAmdMsrWrite (0xC001001F, &MsrReg, &StdHeader); /* Set PCIE MMIO. */ PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18, 1, 0x90); PciData = (CONFIG_MMCONF_BASE_ADDRESS >> 8) |3; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0x18, 1, 0x94); PciData = (( CONFIG_MMCONF_BASE_ADDRESS + CONFIG_MMCONF_BUS_NUMBER * 4096 *256 - 1) >> 8) | MMIO_NP_BIT; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); /* Enable memory access */ PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0, 0, 0x04); LibAmdPciRead(AccessWidth8, PciAddress, &PciData, &StdHeader); PciData |= BIT1; PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0, 0, 0x04); LibAmdPciWrite(AccessWidth8, PciAddress, &PciData, &StdHeader); /* Set ROM cache onto WP to decrease post time */ MsrReg = (0x0100000000 - CONFIG_ROM_SIZE) | 5; LibAmdMsrWrite (0x20E, &MsrReg, &StdHeader); MsrReg = ((1ULL << CONFIG_CPU_ADDR_BITS) - CONFIG_ROM_SIZE) | 0x800ull; LibAmdMsrWrite (0x20F, &MsrReg, &StdHeader); Status = AGESA_SUCCESS; return (UINT32)Status; } UINT32 agesawrapper_amdinitreset ( VOID ) { AGESA_STATUS status; AMD_INTERFACE_PARAMS AmdParamStruct; AMD_RESET_PARAMS AmdResetParams; LibAmdMemFill (&AmdParamStruct, 0, sizeof (AMD_INTERFACE_PARAMS), &(AmdParamStruct.StdHeader)); LibAmdMemFill (&AmdResetParams, 0, sizeof (AMD_RESET_PARAMS), &(AmdResetParams.StdHeader)); AmdParamStruct.AgesaFunctionName = AMD_INIT_RESET; AmdParamStruct.AllocationMethod = ByHost; AmdParamStruct.NewStructSize = sizeof(AMD_RESET_PARAMS); AmdParamStruct.NewStructPtr = &AmdResetParams; AmdParamStruct.StdHeader.AltImageBasePtr = 0; AmdParamStruct.StdHeader.CalloutPtr = NULL; AmdParamStruct.StdHeader.Func = 0; AmdParamStruct.StdHeader.ImageBasePtr = 0; AmdCreateStruct (&AmdParamStruct); AmdResetParams.HtConfig.Depth = 0; #if (defined AGESA_ENTRY_INIT_RESET) && (AGESA_ENTRY_INIT_RESET == TRUE) status = AmdInitReset ((AMD_RESET_PARAMS *)AmdParamStruct.NewStructPtr); #endif if (status != AGESA_SUCCESS) agesawrapper_amdreadeventlog(); AmdReleaseStruct (&AmdParamStruct); return (UINT32)status; } UINT32 agesawrapper_amdinitearly ( VOID ) { AGESA_STATUS status; AMD_INTERFACE_PARAMS AmdParamStruct; AMD_EARLY_PARAMS *AmdEarlyParamsPtr; LibAmdMemFill (&AmdParamStruct, 0, sizeof (AMD_INTERFACE_PARAMS), &(AmdParamStruct.StdHeader)); AmdParamStruct.AgesaFunctionName = AMD_INIT_EARLY; AmdParamStruct.AllocationMethod = PreMemHeap; AmdParamStruct.StdHeader.AltImageBasePtr = 0; AmdParamStruct.StdHeader.CalloutPtr = (CALLOUT_ENTRY) &GetBiosCallout; AmdParamStruct.StdHeader.Func = 0; AmdParamStruct.StdHeader.ImageBasePtr = 0; AmdCreateStruct (&AmdParamStruct); AmdEarlyParamsPtr = (AMD_EARLY_PARAMS *)AmdParamStruct.NewStructPtr; OemCustomizeInitEarly (AmdEarlyParamsPtr); status = AmdInitEarly ((AMD_EARLY_PARAMS *)AmdParamStruct.NewStructPtr); if (status != AGESA_SUCCESS) agesawrapper_amdreadeventlog(); AmdReleaseStruct (&AmdParamStruct); return (UINT32)status; } /*---------------------------------------------------------------------------------------*/ /** * OemCustomizeInitEarly * * Description: * This is the stub function will call the host environment through the binary block * interface (call-out port) to provide a user hook opportunity * * Parameters: * @param[in] **PeiServices * @param[in] *InitEarly * * @retval VOID * **/ /*---------------------------------------------------------------------------------------*/ VOID OemCustomizeInitEarly(IN OUT AMD_EARLY_PARAMS *InitEarly) { //InitEarly->PlatformConfig.CoreLevelingMode = CORE_LEVEL_TWO; } VOID OemCustomizeInitPost ( IN AMD_POST_PARAMS *InitPost ) { InitPost->MemConfig.UmaMode = UMA_AUTO; InitPost->MemConfig.BottomIo = 0xE0; InitPost->MemConfig.UmaSize = 0xE0-0xC0; } UINT32 agesawrapper_amdinitpost ( VOID ) { AGESA_STATUS status; UINT16 i; UINT32 *HeadPtr; AMD_INTERFACE_PARAMS AmdParamStruct; BIOS_HEAP_MANAGER *BiosManagerPtr; LibAmdMemFill (&AmdParamStruct, 0, sizeof (AMD_INTERFACE_PARAMS), &(AmdParamStruct.StdHeader)); AmdParamStruct.AgesaFunctionName = AMD_INIT_POST; AmdParamStruct.AllocationMethod = PreMemHeap; AmdParamStruct.StdHeader.AltImageBasePtr = 0; AmdParamStruct.StdHeader.CalloutPtr = (CALLOUT_ENTRY) &GetBiosCallout; AmdParamStruct.StdHeader.Func = 0; AmdParamStruct.StdHeader.ImageBasePtr = 0; AmdCreateStruct (&AmdParamStruct); /* OEM Should Customize the defaults through this hook */ OemCustomizeInitPost ((AMD_POST_PARAMS *)AmdParamStruct.NewStructPtr); status = AmdInitPost ((AMD_POST_PARAMS *)AmdParamStruct.NewStructPtr); if (status != AGESA_SUCCESS) agesawrapper_amdreadeventlog(); AmdReleaseStruct (&AmdParamStruct); /* Initialize heap space */ BiosManagerPtr = (BIOS_HEAP_MANAGER *)BIOS_HEAP_START_ADDRESS; HeadPtr = (UINT32 *) ((UINT8 *) BiosManagerPtr + sizeof (BIOS_HEAP_MANAGER)); for (i = 0; i < ((BIOS_HEAP_SIZE/4) - (sizeof (BIOS_HEAP_MANAGER)/4)); i++) { *HeadPtr = 0x00000000; HeadPtr++; } BiosManagerPtr->StartOfAllocatedNodes = 0; BiosManagerPtr->StartOfFreedNodes = 0; return (UINT32)status; } UINT32 agesawrapper_amdinitenv ( VOID ) { AGESA_STATUS status; AMD_INTERFACE_PARAMS AmdParamStruct; PCI_ADDR PciAddress; UINT32 PciValue; LibAmdMemFill (&AmdParamStruct, 0, sizeof (AMD_INTERFACE_PARAMS), &(AmdParamStruct.StdHeader)); AmdParamStruct.AgesaFunctionName = AMD_INIT_ENV; AmdParamStruct.AllocationMethod = PostMemDram; AmdParamStruct.StdHeader.AltImageBasePtr = 0; AmdParamStruct.StdHeader.CalloutPtr = (CALLOUT_ENTRY) &GetBiosCallout; AmdParamStruct.StdHeader.Func = 0; AmdParamStruct.StdHeader.ImageBasePtr = 0; AmdCreateStruct (&AmdParamStruct); status = AmdInitEnv ((AMD_ENV_PARAMS *)AmdParamStruct.NewStructPtr); if (status != AGESA_SUCCESS) agesawrapper_amdreadeventlog(); AmdReleaseStruct (&AmdParamStruct); return (UINT32)status; } VOID * agesawrapper_getlateinitptr ( int pick ) { switch (pick) { case PICK_DMI: return DmiTable; case PICK_PSTATE: return AcpiPstate; case PICK_SRAT: return AcpiSrat; case PICK_SLIT: return AcpiSlit; case PICK_WHEA_MCE: return AcpiWheaMce; case PICK_WHEA_CMC: return AcpiWheaCmc; case PICK_ALIB: return AcpiAlib; default: return NULL; } } UINT32 agesawrapper_amdinitmid ( VOID ) { AGESA_STATUS status; AMD_INTERFACE_PARAMS AmdParamStruct; printk(BIOS_DEBUG, "file '%s',line %d, %s()\n", __FILE__, __LINE__, __func__); /* Enable MMIO on AMD CPU Address Map Controller */ amdinitcpuio (); LibAmdMemFill (&AmdParamStruct, 0, sizeof (AMD_INTERFACE_PARAMS), &(AmdParamStruct.StdHeader)); AmdParamStruct.AgesaFunctionName = AMD_INIT_MID; AmdParamStruct.AllocationMethod = PostMemDram; AmdParamStruct.StdHeader.AltImageBasePtr = 0; AmdParamStruct.StdHeader.CalloutPtr = (CALLOUT_ENTRY) &GetBiosCallout; AmdParamStruct.StdHeader.Func = 0; AmdParamStruct.StdHeader.ImageBasePtr = 0; AmdCreateStruct (&AmdParamStruct); status = AmdInitMid ((AMD_MID_PARAMS *)AmdParamStruct.NewStructPtr); if (status != AGESA_SUCCESS) agesawrapper_amdreadeventlog(); AmdReleaseStruct (&AmdParamStruct); return (UINT32)status; } UINT32 agesawrapper_amdinitlate(VOID) { AGESA_STATUS Status; AMD_INTERFACE_PARAMS AmdParamStruct; AMD_LATE_PARAMS *AmdLateParamsPtr; LibAmdMemFill(&AmdParamStruct, 0, sizeof (AMD_INTERFACE_PARAMS), &(AmdParamStruct.StdHeader)); AmdParamStruct.AgesaFunctionName = AMD_INIT_LATE; AmdParamStruct.AllocationMethod = PostMemDram; AmdParamStruct.StdHeader.AltImageBasePtr = 0; AmdParamStruct.StdHeader.CalloutPtr = (CALLOUT_ENTRY) &GetBiosCallout; AmdParamStruct.StdHeader.Func = 0; AmdParamStruct.StdHeader.ImageBasePtr = 0; AmdParamStruct.StdHeader.HeapStatus = HEAP_SYSTEM_MEM; AmdCreateStruct (&AmdParamStruct); AmdLateParamsPtr = (AMD_LATE_PARAMS *) AmdParamStruct.NewStructPtr; printk(BIOS_DEBUG, "agesawrapper_amdinitlate: AmdLateParamsPtr = %X\n", (u32)AmdLateParamsPtr); Status = AmdInitLate(AmdLateParamsPtr); if (Status != AGESA_SUCCESS) { //agesawrapper_amdreadeventlog(AmdLateParamsPtr->StdHeader.HeapStatus); agesawrapper_amdreadeventlog(); ASSERT(Status == AGESA_SUCCESS); } DmiTable = AmdLateParamsPtr->DmiTable; AcpiPstate = AmdLateParamsPtr->AcpiPState; AcpiSrat = AmdLateParamsPtr->AcpiSrat; AcpiSlit = AmdLateParamsPtr->AcpiSlit; AcpiWheaMce = AmdLateParamsPtr->AcpiWheaMce; AcpiWheaCmc = AmdLateParamsPtr->AcpiWheaCmc; AcpiAlib = AmdLateParamsPtr->AcpiAlib; printk(BIOS_DEBUG, "In %s, AGESA generated ACPI tables:\n" " DmiTable:%p\n AcpiPstate: %p\n AcpiSrat:%p\n AcpiSlit:%p\n" " Mce:%p\n Cmc:%p\n Alib:%p\n", __func__, DmiTable, AcpiPstate, AcpiSrat, AcpiSlit, AcpiWheaMce, AcpiWheaCmc, AcpiAlib); /* Don't release the structure until coreboot has copied the ACPI tables. * AmdReleaseStruct (&AmdLateParams); */ return (UINT32)Status; } UINT32 agesawrapper_amdlaterunaptask ( UINT32 Data, VOID *ConfigPtr ) { AGESA_STATUS Status; AMD_LATE_PARAMS AmdLateParams; LibAmdMemFill (&AmdLateParams, 0, sizeof (AMD_LATE_PARAMS), &(AmdLateParams.StdHeader)); AmdLateParams.StdHeader.AltImageBasePtr = 0; AmdLateParams.StdHeader.CalloutPtr = (CALLOUT_ENTRY) &GetBiosCallout; AmdLateParams.StdHeader.Func = 0; AmdLateParams.StdHeader.ImageBasePtr = 0; Status = AmdLateRunApTask (&AmdLateParams); if (Status != AGESA_SUCCESS) { agesawrapper_amdreadeventlog(); ASSERT(Status == AGESA_SUCCESS); } return (UINT32)Status; } UINT32 agesawrapper_amdreadeventlog ( VOID ) { AGESA_STATUS Status; EVENT_PARAMS AmdEventParams; LibAmdMemFill (&AmdEventParams, 0, sizeof (EVENT_PARAMS), &(AmdEventParams.StdHeader)); AmdEventParams.StdHeader.AltImageBasePtr = 0; AmdEventParams.StdHeader.CalloutPtr = NULL; AmdEventParams.StdHeader.Func = 0; AmdEventParams.StdHeader.ImageBasePtr = 0; Status = AmdReadEventLog (&AmdEventParams); while (AmdEventParams.EventClass != 0) { printk(BIOS_DEBUG,"\nEventLog: EventClass = %x, EventInfo = %x.\n",AmdEventParams.EventClass,AmdEventParams.EventInfo); printk(BIOS_DEBUG," Param1 = %x, Param2 = %x.\n",AmdEventParams.DataParam1,AmdEventParams.DataParam2); printk(BIOS_DEBUG," Param3 = %x, Param4 = %x.\n",AmdEventParams.DataParam3,AmdEventParams.DataParam4); Status = AmdReadEventLog (&AmdEventParams); } return (UINT32)Status; }