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Diffstat (limited to 'src/vendorcode/amd/agesa/f14/Proc/CPU/cahalt.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f14/Proc/CPU/cahalt.c | 317 |
1 files changed, 317 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f14/Proc/CPU/cahalt.c b/src/vendorcode/amd/agesa/f14/Proc/CPU/cahalt.c new file mode 100644 index 0000000000..c4c3892e5a --- /dev/null +++ b/src/vendorcode/amd/agesa/f14/Proc/CPU/cahalt.c @@ -0,0 +1,317 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * HyperTransport features and sequence implementation. + * + * Implements the external AmdHtInitialize entry point. + * Contains routines for directing the sequence of available features. + * Mostly, but not exclusively, AGESA_TESTPOINT invocations should be + * contained in this file, and not in the feature code. + * + * From a build option perspective, it may be that a few lines could be removed + * from compilation in this file for certain options. It is considered that + * the code savings from this are too small to be of concern and this file + * should not have any explicit build option implementation. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: HyperTransport + * @e \$Revision: 35978 $ @e \$Date: 2010-08-07 02:18:50 +0800 (Sat, 07 Aug 2010) $ + * + */ +/* + ***************************************************************************** + * + * Copyright (c) 2011, Advanced Micro Devices, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Advanced Micro Devices, Inc. nor the names of + * its contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * *************************************************************************** + * + */ + +#include "AGESA.h" +#include "cpuRegisters.h" +#include "Filecode.h" + + /*---------------------------------------------------------------------------------------- + * D E F I N I T I O N S A N D M A C R O S + *---------------------------------------------------------------------------------------- + */ + +/*---------------------------------------------------------------------------------------- + * T Y P E D E F S A N D S T R U C T U R E S + *---------------------------------------------------------------------------------------- + */ + +// typedef unsigned int uintptr_t; + +/*---------------------------------------------------------------------------------------- + * 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 + *---------------------------------------------------------------------------------------- + */ + +VOID +ExecuteFinalHltInstruction ( + IN UINT32 SharedCore, + IN AP_MTRR_SETTINGS *ApMtrrSettingsList, + IN AMD_CONFIG_PARAMS *StdHeader + ); + +VOID +SetIdtr ( + IN IDT_BASE_LIMIT *IdtInfo, + IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr + ); + +VOID +GetCsSelector ( + IN UINT16 *Selector, + IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr + ); + +VOID +NmiHandler ( + IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr + ); + +VOID +ExecuteHltInstruction ( + IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr + ); + +VOID +ExecuteWbinvdInstruction ( + IN AMD_CONFIG_PARAMS *StdHeader + ); + + /*---------------------------------------------------------------------------------------- + * E X P O R T E D F U N C T I O N S + *---------------------------------------------------------------------------------------- + */ + + +//---------------------------------------------------------------------------- + +STATIC +VOID +PrimaryCoreFunctions (AP_MTRR_SETTINGS *ApMtrrSettingsList) + { + UINT64 data; + UINT32 msrno; + // Configure the MTRRs on the AP so + // when it runs remote code it will execute + // out of RAM instead of ROM. + // Disable MTRRs and turn on modification enable bit + + data = __readmsr (0xC0010010); // MTRR_SYS_CFG + data &= ~(1 << 18); // MtrrFixDramEn + data &= ~(1 << 20); // MtrrVarDramEn + data |= (1 << 19); // MtrrFixDramModEn + data |= (1 << 17); // SysUcLockEn + + + __writemsr (0xC0010010, data); + + // Set 7FFFh-00000h and 9FFFFh-80000h as WB DRAM + __writemsr (0x250, 0x1E1E1E1E1E1E1E1E); // AMD_MTRR_FIX64k_00000 + __writemsr (0x258, 0x1E1E1E1E1E1E1E1E); // AMD_MTRR_FIX16k_80000 + + // Set BFFFFh-A0000h, DFFFFh-C0000h as Uncacheable Memory-mapped IO + __writemsr (0x259, 0); // AMD_AP_MTRR_FIX16k_A0000 + __writemsr (0x268, 0); // AMD_MTRR_FIX4k_C0000 + __writemsr (0x269, 0); // AMD_MTRR_FIX4k_C8000 + __writemsr (0x26A, 0); // AMD_MTRR_FIX4k_D0000 + __writemsr (0x26B, 0); // AMD_MTRR_FIX4k_D8000 + + // Set FFFFFh-E0000h as Uncacheable Memory + for (msrno = 0x26C; msrno <= 0x26F; msrno++) + __writemsr (msrno, 0x1818181818181818); + + // If IBV provided settings for Fixed-Sized MTRRs, + // overwrite the default settings. + if ((uintptr_t) ApMtrrSettingsList != 0 && (uintptr_t) ApMtrrSettingsList != 0xFFFFFFFF) + { + int index; + for (index = 0; ApMtrrSettingsList [index].MsrAddr != CPU_LIST_TERMINAL; index++) + __writemsr (ApMtrrSettingsList [index].MsrAddr, ApMtrrSettingsList [index].MsrData); + } + + // restore variable MTTR6 and MTTR7 to default states + for (msrno = 0x20F; msrno <= 0x20C; msrno--) // decrement so that the pair is disable before the base is cleared + __writemsr (msrno, 0); + + // Enable fixed-range and variable-range MTRRs + // Set Fixed-Range Enable (FE) and MTRR Enable (E) bits + __writemsr (0x2FF, __readmsr (0x2FF) | 0xC00); + + // Enable Top-of-Memory setting + // Enable use of RdMem/WrMem bits attributes + data = __readmsr (0xC0010010); // MTRR_SYS_CFG + data |= (1 << 18); // MtrrFixDramEn + data |= (1 << 20); // MtrrVarDramEn + data &= ~(1 << 19); // MtrrFixDramModEn + __writemsr (0xC0010010, data); + } + +//---------------------------------------------------------------------------- + +VOID +ExecuteFinalHltInstruction ( + IN UINT32 SharedCore, + IN AP_MTRR_SETTINGS *ApMtrrSettingsList, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + int abcdRegs [4]; + UINT32 cr0val; + UINT64 data; + + cr0val = __readcr0 (); + if (SharedCore & 2) + { + // set CombineCr0Cd and enable cache in CR0 + __writemsr (MSR_CU_CFG3, __readmsr (MSR_CU_CFG3) | 1ULL << 49); + __writecr0 (cr0val & ~0x60000000); + } + else + __writecr0 (cr0val | 0x60000000); + + if (SharedCore & 1) PrimaryCoreFunctions (ApMtrrSettingsList); + + // Make sure not to touch any Shared MSR from this point on + + // Restore settings that were temporarily overridden for the cache as ram phase + data = __readmsr (0xC0011022); // MSR_DC_CFG + data &= ~(1 << 4); // DC_DIS_SPEC_TLB_RLD + data &= ~(1 << 8); // DIS_CLR_WBTOL2_SMC_HIT + data &= ~(1 << 13); // DIS_HW_PF + __writemsr (0xC0011022, data); + + data = __readmsr (0xC0011021); // MSR_IC_CFG - C001_1021 + data &= ~(1 << 9); // IC_DIS_SPEC_TLB_RLD + __writemsr (0xC0011021, data); + + // AMD_DISABLE_STACK_FAMILY_HOOK + __cpuid (abcdRegs, 1); + if ((abcdRegs [0] >> 20) == 1) //-----family 10h (Hydra) only----- + { + data = __readmsr (0xC0011022); + data &= ~(1 << 4); + data &= ~(1 << 8); + data &= ~(1 << 13); + __writemsr (0xC0011022, data); + + data = __readmsr (0xC0011021); + data &= ~(1 << 14); + data &= ~(1 << 9); + __writemsr (0xC0011021, data); + + data = __readmsr (0xC001102A); + data &= ~(1 << 15); + data &= ~(1ull << 35); + __writemsr (0xC001102A, data); + } + else if ((abcdRegs [0] >> 20) == 6) //-----family 15h (Orochi) only----- + { + data = __readmsr (0xC0011020); + data &= ~(1 << 28); + __writemsr (0xC0011020, data); + + data = __readmsr (0xC0011021); + data &= ~(1 << 9); + __writemsr (0xC0011021, data); + + data = __readmsr (0xC0011022); + data &= ~(1 << 4); + data &= ~(1l << 13); + __writemsr (0xC0011022, data); + } + + for (;;) + { + _disable (); + __halt (); + } + } + +//---------------------------------------------------------------------------- + +/// Structure needed to load the IDTR using the lidt instruction + +VOID +SetIdtr ( + IN IDT_BASE_LIMIT *IdtInfo, + IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr + ) +{ + __lidt (IdtInfo); +} + +//---------------------------------------------------------------------------- + +VOID +GetCsSelector ( + IN UINT16 *Selector, + IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr + ) +{ + static const UINT8 opcode [] = {0x8C, 0xC8, 0xC3}; // mov eax, cs; ret + *Selector = ((UINT16 (*)(void)) (size_t) opcode) (); +} + +//---------------------------------------------------------------------------- + +VOID +NmiHandler ( + IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr + ) +{ + static const UINT8 opcode [] = {0xCF}; // iret + ((void (*)(void)) (size_t) opcode) (); +} + +//---------------------------------------------------------------------------- + +VOID +ExecuteHltInstruction ( + IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr + ) +{ + _disable (); + __halt (); +} + +//--------------------------------------------------------------------------- + +VOID +ExecuteWbinvdInstruction ( + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + __wbinvd (); +} + +//---------------------------------------------------------------------------- |