/* * This file is part of the coreboot project. * * Copyright (C) 2011 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 "agesawrapper.h" #include "BiosCallOuts.h" #include "PlatformGnbPcieComplex.h" #define __SIMPLE_DEVICE__ #include #include #include #include #include #include #include #include #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 *------------------------------------------------------------------------------ */ #define MMCONF_ENABLE 1 /* 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 *------------------------------------------------------------------------------ */ uint32_t agesawrapper_amdinitcpuio(void) { pci_devfn_t dev; msr_t msr; uint32_t reg32; dev = PCI_DEV(0, 0x18, 1); /* Enable legacy video routing: D18F1xF4 VGA Enable */ pci_io_write_config32(dev, 0xf4, 1); /* The platform BIOS needs to ensure the memory ranges of SB800 legacy * devices (TPM, HPET, BIOS RAM, Watchdog Timer, I/O APIC and ACPI) are * set to non-posted regions. * Last address before processor local APIC at FEE00000 */ pci_io_write_config32(dev, 0x84, 0x00fedf00 | (1 << 7)); /* Lowest NP address is HPET at FED00000 */ pci_io_write_config32(dev, 0x80, (0xfed00000 >> 8) | 3); /* Map the remaining PCI hole as posted MMIO */ pci_io_write_config32(dev, 0x8C, 0x00fecf00); msr = rdmsr(0xc001001a); reg32 = (msr.hi << 24) | (msr.lo >> 8) | 3; /* Equivalent to msr >> 8 */ pci_io_write_config32(dev, 0x88, reg32); /* Send all IO (0000-FFFF) to southbridge. */ pci_io_write_config32(dev, 0xc4, 0x0000f000); pci_io_write_config32(dev, 0xc0, 0x00000003); return AGESA_SUCCESS; } UINT32 agesawrapper_amdinitmmio ( VOID ) { AGESA_STATUS Status; UINT64 MsrReg; UINT32 PciData; PCI_ADDR PciAddress; AMD_CONFIG_PARAMS StdHeader; UINT8 BusRangeVal = 0; UINT8 BusNum; UINT8 Index; /* Set the MMIO Configuration Base Address and Bus Range onto MMIO configuration base Address MSR register. */ for (Index = 0; Index < 8; Index++) { BusNum = CONFIG_MMCONF_BUS_NUMBER >> Index; if (BusNum == 1) { BusRangeVal = Index; break; } } MsrReg = (CONFIG_MMCONF_BASE_ADDRESS | (UINT64)(BusRangeVal << 2) | MMCONF_ENABLE); LibAmdMsrWrite (0xC0010058, &MsrReg, &StdHeader); /* Set the NB_CFG MSR register. Enable CF8 extended configuration cycles. */ LibAmdMsrRead (0xC001001F, &MsrReg, &StdHeader); MsrReg = MsrReg | 0x0000400000000000ull; LibAmdMsrWrite (0xC001001F, &MsrReg, &StdHeader); /* Set Ontario Link Data */ PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0, 0, 0xE0); PciData = 0x01308002; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); PciAddress.AddressValue = MAKE_SBDFO (0, 0, 0, 0, 0xE4); PciData = (AMD_APU_SSID<<0x10)|AMD_APU_SVID; LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); Status = AGESA_SUCCESS; return (UINT32)Status; } UINT32 agesawrapper_amdinitreset ( VOID ) { AGESA_STATUS status; AMD_INTERFACE_PARAMS AmdParamStruct; AMD_RESET_PARAMS AmdResetParams; memset(&AmdParamStruct, 0, sizeof(AMD_INTERFACE_PARAMS)); memset(&AmdResetParams, 0, sizeof(AMD_RESET_PARAMS)); 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; status = AmdInitReset ((AMD_RESET_PARAMS *)AmdParamStruct.NewStructPtr); 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; memset(&AmdParamStruct, 0, sizeof(AMD_INTERFACE_PARAMS)); 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; } UINT32 GetHeapBase( AMD_CONFIG_PARAMS *StdHeader ) { UINT32 heap; #if CONFIG_HAVE_ACPI_RESUME /* Both romstage and ramstage has this S3 detect. */ if (acpi_get_sleep_type() == 3) heap = (UINT32)cbmem_find(CBMEM_ID_RESUME_SCRATCH) + (CONFIG_HIGH_SCRATCH_MEMORY_SIZE - BIOS_HEAP_SIZE); /* himem_heap_base + high_stack_size */ else #endif heap = BIOS_HEAP_START_ADDRESS; /* low mem */ return heap; } UINT32 agesawrapper_amdinitpost ( VOID ) { AGESA_STATUS status; UINT16 i; UINT32 *HeadPtr; AMD_INTERFACE_PARAMS AmdParamStruct; BIOS_HEAP_MANAGER *BiosManagerPtr; memset(&AmdParamStruct, 0, sizeof(AMD_INTERFACE_PARAMS)); 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); status = AmdInitPost ((AMD_POST_PARAMS *)AmdParamStruct.NewStructPtr); if (status != AGESA_SUCCESS) agesawrapper_amdreadeventlog(); AmdReleaseStruct (&AmdParamStruct); /* Initialize heap space */ BiosManagerPtr = (BIOS_HEAP_MANAGER *)GetHeapBase(&AmdParamStruct.StdHeader); 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; memset(&AmdParamStruct, 0, sizeof(AMD_INTERFACE_PARAMS)); 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(); /* Initialize Subordinate Bus Number and Secondary Bus Number * In platform BIOS this address is allocated by PCI enumeration code Modify D1F0x18 */ PciAddress.Address.Bus = 0; PciAddress.Address.Device = 1; PciAddress.Address.Function = 0; PciAddress.Address.Register = 0x18; /* Write to D1F0x18 */ LibAmdPciRead (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); PciValue |= 0x00010100; LibAmdPciWrite (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); /* Initialize GMM Base Address for Legacy Bridge Mode * Modify B1D5F0x18 */ PciAddress.Address.Bus = 1; PciAddress.Address.Device = 5; PciAddress.Address.Function = 0; PciAddress.Address.Register = 0x18; LibAmdPciRead (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); PciValue |= 0x96000000; LibAmdPciWrite (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); /* Initialize FB Base Address for Legacy Bridge Mode * Modify B1D5F0x10 */ PciAddress.Address.Register = 0x10; LibAmdPciRead (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); PciValue |= 0x80000000; LibAmdPciWrite (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); /* Initialize GMM Base Address for Pcie Mode * Modify B0D1F0x18 */ PciAddress.Address.Bus = 0; PciAddress.Address.Device = 1; PciAddress.Address.Function = 0; PciAddress.Address.Register = 0x18; LibAmdPciRead (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); PciValue |= 0x96000000; LibAmdPciWrite (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); /* Initialize FB Base Address for Pcie Mode * Modify B0D1F0x10 */ PciAddress.Address.Register = 0x10; LibAmdPciRead (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); PciValue |= 0x80000000; LibAmdPciWrite (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); /* Initialize MMIO Base and Limit Address * Modify B0D1F0x20 */ PciAddress.Address.Bus = 0; PciAddress.Address.Device = 1; PciAddress.Address.Function = 0; PciAddress.Address.Register = 0x20; LibAmdPciRead (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); PciValue |= 0x96009600; LibAmdPciWrite (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); /* Initialize MMIO Prefetchable Memory Limit and Base * Modify B0D1F0x24 */ PciAddress.Address.Register = 0x24; LibAmdPciRead (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); PciValue |= 0x8FF18001; LibAmdPciWrite (AccessWidth32, PciAddress, &PciValue, &AmdParamStruct.StdHeader); 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; /* Enable MMIO on AMD CPU Address Map Controller */ agesawrapper_amdinitcpuio (); memset(&AmdParamStruct, 0, sizeof(AMD_INTERFACE_PARAMS)); 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; memset(&AmdParamStruct, 0, sizeof(AMD_INTERFACE_PARAMS)); 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; 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(); 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; } #if CONFIG_HAVE_ACPI_RESUME UINT32 agesawrapper_amdinitresume ( VOID ) { AGESA_STATUS status; AMD_INTERFACE_PARAMS AmdParamStruct; AMD_RESUME_PARAMS *AmdResumeParamsPtr; S3_DATA_TYPE S3DataType; memset(&AmdParamStruct, 0, sizeof(AMD_INTERFACE_PARAMS)); AmdParamStruct.AgesaFunctionName = AMD_INIT_RESUME; AmdParamStruct.AllocationMethod = PreMemHeap; AmdParamStruct.StdHeader.AltImageBasePtr = 0; AmdParamStruct.StdHeader.CalloutPtr = (CALLOUT_ENTRY) &GetBiosCallout; AmdParamStruct.StdHeader.Func = 0; AmdParamStruct.StdHeader.ImageBasePtr = 0; AmdCreateStruct (&AmdParamStruct); AmdResumeParamsPtr = (AMD_RESUME_PARAMS *)AmdParamStruct.NewStructPtr; AmdResumeParamsPtr->S3DataBlock.NvStorageSize = 0; AmdResumeParamsPtr->S3DataBlock.VolatileStorageSize = 0; S3DataType = S3DataTypeNonVolatile; OemAgesaGetS3Info (S3DataType, (u32 *) &AmdResumeParamsPtr->S3DataBlock.NvStorageSize, (void **) &AmdResumeParamsPtr->S3DataBlock.NvStorage); status = AmdInitResume ((AMD_RESUME_PARAMS *)AmdParamStruct.NewStructPtr); if (status != AGESA_SUCCESS) agesawrapper_amdreadeventlog(); AmdReleaseStruct (&AmdParamStruct); return (UINT32)status; } UINT32 agesawrapper_amds3laterestore ( VOID ) { AGESA_STATUS Status; AMD_INTERFACE_PARAMS AmdInterfaceParams; AMD_S3LATE_PARAMS AmdS3LateParams; AMD_S3LATE_PARAMS *AmdS3LateParamsPtr; S3_DATA_TYPE S3DataType; memset(&AmdS3LateParams, 0, sizeof(AMD_S3LATE_PARAMS)); AmdInterfaceParams.StdHeader.ImageBasePtr = 0; AmdInterfaceParams.AllocationMethod = ByHost; AmdInterfaceParams.AgesaFunctionName = AMD_S3LATE_RESTORE; AmdInterfaceParams.NewStructPtr = &AmdS3LateParams; AmdInterfaceParams.StdHeader.CalloutPtr = (CALLOUT_ENTRY) &GetBiosCallout; AmdS3LateParamsPtr = &AmdS3LateParams; AmdInterfaceParams.NewStructSize = sizeof (AMD_S3LATE_PARAMS); AmdCreateStruct (&AmdInterfaceParams); AmdS3LateParamsPtr->S3DataBlock.VolatileStorageSize = 0; S3DataType = S3DataTypeVolatile; OemAgesaGetS3Info (S3DataType, (u32 *) &AmdS3LateParamsPtr->S3DataBlock.VolatileStorageSize, (void **) &AmdS3LateParamsPtr->S3DataBlock.VolatileStorage); Status = AmdS3LateRestore (AmdS3LateParamsPtr); if (Status != AGESA_SUCCESS) { agesawrapper_amdreadeventlog(); ASSERT(Status == AGESA_SUCCESS); } return (UINT32)Status; } #ifndef __PRE_RAM__ UINT32 agesawrapper_amdS3Save ( VOID ) { AGESA_STATUS Status; AMD_S3SAVE_PARAMS *AmdS3SaveParamsPtr; AMD_INTERFACE_PARAMS AmdInterfaceParams; S3_DATA_TYPE S3DataType; memset(&AmdInterfaceParams, 0, sizeof(AMD_INTERFACE_PARAMS)); AmdInterfaceParams.StdHeader.ImageBasePtr = 0; AmdInterfaceParams.StdHeader.HeapStatus = HEAP_SYSTEM_MEM; AmdInterfaceParams.StdHeader.CalloutPtr = (CALLOUT_ENTRY) &GetBiosCallout; AmdInterfaceParams.AllocationMethod = PostMemDram; AmdInterfaceParams.AgesaFunctionName = AMD_S3_SAVE; AmdInterfaceParams.StdHeader.AltImageBasePtr = 0; AmdInterfaceParams.StdHeader.Func = 0; AmdCreateStruct(&AmdInterfaceParams); AmdS3SaveParamsPtr = (AMD_S3SAVE_PARAMS *)AmdInterfaceParams.NewStructPtr; AmdS3SaveParamsPtr->StdHeader = AmdInterfaceParams.StdHeader; Status = AmdS3Save (AmdS3SaveParamsPtr); if (Status != AGESA_SUCCESS) { agesawrapper_amdreadeventlog(); ASSERT(Status == AGESA_SUCCESS); } S3DataType = S3DataTypeNonVolatile; Status = OemAgesaSaveS3Info ( S3DataType, AmdS3SaveParamsPtr->S3DataBlock.NvStorageSize, AmdS3SaveParamsPtr->S3DataBlock.NvStorage); if (AmdS3SaveParamsPtr->S3DataBlock.VolatileStorageSize != 0) { S3DataType = S3DataTypeVolatile; Status = OemAgesaSaveS3Info ( S3DataType, AmdS3SaveParamsPtr->S3DataBlock.VolatileStorageSize, AmdS3SaveParamsPtr->S3DataBlock.VolatileStorage ); } OemAgesaSaveMtrr(); AmdReleaseStruct (&AmdInterfaceParams); return (UINT32)Status; } #endif /* #ifndef __PRE_RAM__ */ #endif /* CONFIG_HAVE_ACPI_RESUME */ UINT32 agesawrapper_amdlaterunaptask ( UINT32 Func, UINT32 Data, VOID *ConfigPtr ) { AGESA_STATUS Status; AP_EXE_PARAMS ApExeParams; memset(&ApExeParams, 0, sizeof(AP_EXE_PARAMS)); ApExeParams.StdHeader.AltImageBasePtr = 0; ApExeParams.StdHeader.CalloutPtr = (CALLOUT_ENTRY) &GetBiosCallout; ApExeParams.StdHeader.Func = 0; ApExeParams.StdHeader.ImageBasePtr = 0; ApExeParams.FunctionNumber = Func; ApExeParams.RelatedDataBlock = ConfigPtr; Status = AmdLateRunApTask (&ApExeParams); if (Status != AGESA_SUCCESS) { agesawrapper_amdreadeventlog(); ASSERT(Status == AGESA_SUCCESS); } return (UINT32)Status; } UINT32 agesawrapper_amdreadeventlog ( VOID ) { AGESA_STATUS Status; EVENT_PARAMS AmdEventParams; memset(&AmdEventParams, 0, sizeof(EVENT_PARAMS)); 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 = %lx, EventInfo = %lx.\n",AmdEventParams.EventClass,AmdEventParams.EventInfo); printk(BIOS_DEBUG," Param1 = %lx, Param2 = %lx.\n",AmdEventParams.DataParam1,AmdEventParams.DataParam2); printk(BIOS_DEBUG," Param3 = %lx, Param4 = %lx.\n",AmdEventParams.DataParam3,AmdEventParams.DataParam4); Status = AmdReadEventLog (&AmdEventParams); } return (UINT32)Status; }