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authorefdesign98 <efdesign98@gmail.com>2011-07-13 16:43:39 -0700
committerPatrick Georgi <patrick@georgi-clan.de>2011-07-15 14:17:00 +0200
commit229f7cb6d660ad4063c9f65e3fabfff80583f281 (patch)
treeeaa627ceb717250c38f1bc6ca79868b331d12e23 /src/vendorcode/amd/agesa/f10/Proc/CPU/cahalt.asm
parent25f23f17bcb2bac9fb5af0f5d6d1d8c1c9ea16ff (diff)
Add the AMD Family10 Agesa code
This change officially adds the Agesa code for the AMD Family 10 cpus. This code supports the G34 and C32 sockets. Change-Id: Idae50417e530ad40a29fb6fff5b427f6b138126c Signed-off-by: Frank Vibrans <frank.vibrans@amd.com> Signed-off-by: efdesign98 <efdesign98@gmail.com> Reviewed-on: http://review.coreboot.org/95 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/vendorcode/amd/agesa/f10/Proc/CPU/cahalt.asm')
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diff --git a/src/vendorcode/amd/agesa/f10/Proc/CPU/cahalt.asm b/src/vendorcode/amd/agesa/f10/Proc/CPU/cahalt.asm
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@@ -0,0 +1,319 @@
+;/**
+; * @file
+; *
+; * Agesa pre-memory miscellaneous support, including ap halt loop.
+; *
+; * @xrefitem bom "File Content Label" "Release Content"
+; * @e project: AGESA
+; * @e sub-project: CPU
+; * @e \$Revision: 44323 $ @e \$Date: 2010-12-22 01:24:58 -0700 (Wed, 22 Dec 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.
+;
+;*****************************************************************************
+
+ .XLIST
+ INCLUDE agesa.inc
+ INCLUDE cpcarmac.inc
+ .LIST
+
+ .586P
+
+;===============================================
+;===============================================
+;==
+;== M E M O R Y A B S E N T S E G M E N T
+;==
+;===============================================
+;===============================================
+ .MODEL flat
+ .CODE
+;======================================================================
+; ExecuteFinalHltInstruction: Disables the stack and performs
+; a hlt instruction on an AP.
+;
+; In:
+; None
+;
+; Out:
+; None
+;
+; Destroyed:
+; eax, ebx, ecx, edx, esp
+;
+;======================================================================
+ExecuteFinalHltInstruction PROC NEAR C PUBLIC
+
+ pop esi ; StdHeader
+ pop esi ; pointer to ApMtrrSettingsList, set through build configuration
+
+ mov eax, CR0 ; Make sure cache is disabled for all APs
+ or eax, CR0_CD OR CR0_NW ; Disable cache
+ mov cr0, eax ; Write back to CR0
+
+ ; 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
+ mov ecx, MTRR_SYS_CFG
+ _RDMSR
+ btr eax, MtrrVarDramEn ; Disable
+ bts eax, MtrrFixDramModEn ; Enable
+ btr eax, MtrrFixDramEn ; Disable
+ bts eax, SysUcLockEn
+ _WRMSR
+
+ ; Setup default values for Fixed-Sized MTRRs
+ ; Set 7FFFh-00000h as WB
+ mov ecx, AMD_AP_MTRR_FIX64k_00000
+ mov eax, 1E1E1E1Eh
+ mov edx, eax
+ _WRMSR
+
+ ; Set 9FFFFh-80000h also as WB
+ mov ecx, AMD_AP_MTRR_FIX16k_80000
+ _WRMSR
+
+ ; Set BFFFFh-A0000h as Uncacheable Memory-mapped IO
+ mov ecx, AMD_AP_MTRR_FIX16k_A0000
+ xor eax, eax
+ xor edx, edx
+ _WRMSR
+
+ ; Set DFFFFh-C0000h as Uncacheable Memory-mapped IO
+ xor eax, eax
+ xor edx, edx
+ mov ecx, AMD_AP_MTRR_FIX4k_C0000
+
+CDLoop:
+ _WRMSR
+ inc ecx
+ cmp ecx, AMD_AP_MTRR_FIX4k_D8000
+ jbe CDLoop
+
+ ; Set FFFFFh-E0000h as Uncacheable Memory
+ mov eax, 18181818h
+ mov edx, eax
+
+ mov ecx, AMD_AP_MTRR_FIX4k_E0000
+
+EFLoop:
+ _WRMSR
+ inc ecx
+ cmp ecx, AMD_AP_MTRR_FIX4k_F8000
+ jbe EFLoop
+
+ ; If IBV provided settings for Fixed-Sized MTRRs,
+ ; overwrite the default settings.
+ .if (esi != 0)
+ mov ecx, (AP_MTRR_SETTINGS ptr [esi]).MsrAddr
+ ; While we are not at the end of the list
+ .while (ecx != CPU_LIST_TERMINAL)
+ ; Ensure that the MSR address is valid for Fixed-Sized MTRRs
+ .if ( ((ecx >= AMD_AP_MTRR_FIX4k_C0000) && (ecx <= AMD_AP_MTRR_FIX4k_F8000)) || \
+ (ecx == AMD_AP_MTRR_FIX64k_00000) || (ecx == AMD_AP_MTRR_FIX16k_80000 ) || (ecx == AMD_AP_MTRR_FIX16k_A0000))
+ mov eax, dword ptr (AP_MTRR_SETTINGS ptr [esi]).MsrData
+ mov edx, dword ptr (AP_MTRR_SETTINGS ptr [esi+4]).MsrData
+ _WRMSR
+ .endif
+ add esi, sizeof (AP_MTRR_SETTINGS)
+ mov ecx, (AP_MTRR_SETTINGS ptr [esi]).MsrAddr
+ .endw
+ .endif
+
+ ; restore variable MTTR6 and MTTR7 to default states
+ mov ecx, AMD_MTRR_VARIABLE_BASE6 ; clear MTRRPhysBase6 MTRRPhysMask6
+ xor eax, eax ; and MTRRPhysBase7 MTRRPhysMask7
+ xor edx, edx
+ .while (cl < 010h)
+ _WRMSR
+ inc cl
+ .endw
+
+ ; Enable fixed-range and variable-range MTRRs
+ mov ecx, AMD_MTRR_DEFTYPE
+ _RDMSR
+ or ax, 0C00h ; Set Fixed-Range Enable (FE) and MTRR Enable (E) bits
+ _WRMSR
+
+ ; Enable Top-of-Memory setting
+ ; Enable use of RdMem/WrMem bits attributes
+ mov ecx, MTRR_SYS_CFG
+ _RDMSR
+ bts eax, MtrrVarDramEn ; Enable
+ btr eax, MtrrFixDramModEn ; Disable
+ bts eax, MtrrFixDramEn ; Enable
+ _WRMSR
+
+ ; Enable the self modifying code check buffer and Enable hardware prefetches
+ mov ecx, 0C0011022h
+ _RDMSR
+ btr eax, DC_DIS_SPEC_TLB_RLD ; Disable speculative TLB reloads bit
+ btr eax, DIS_CLR_WBTOL2_SMC_HIT ; Disable the self modifying code check buffer bit
+ btr eax, DIS_HW_PF ; Disable hardware prefetches bit
+ _WRMSR
+
+ dec cx ; MSRC001_1021 Instruction Cache Configuration Register (IC_CFG)
+ _RDMSR
+ btr eax, IC_DIS_SPEC_TLB_RLD ; turn on Disable speculative TLB reloads bit
+ _WRMSR
+
+ AMD_DISABLE_STACK_FAMILY_HOOK ; Re-Enable L3 cache to accept clear lines
+
+ xor eax, eax
+
+@@:
+ cli
+ hlt
+ jmp @B ;ExecuteHltInstruction
+ExecuteFinalHltInstruction ENDP
+
+;======================================================================
+; ExecuteHltInstruction: Performs a hlt instruction.
+;
+; In:
+; None
+;
+; Out:
+; None
+;
+; Destroyed:
+; eax, ebx, ecx, edx, esp
+;
+;======================================================================
+ExecuteHltInstruction PROC NEAR C PUBLIC
+ cli
+ hlt
+ ret
+ExecuteHltInstruction ENDP
+
+;======================================================================
+; NmiHandler: Simply performs an IRET.
+;
+; In:
+; None
+;
+; Out:
+; None
+;
+; Destroyed:
+; None
+;
+;======================================================================
+NmiHandler PROC NEAR C PUBLIC
+ iretd
+NmiHandler ENDP
+
+;======================================================================
+; GetCsSelector: Returns the current protected mode CS selector.
+;
+; In:
+; None
+;
+; Out:
+; None
+;
+; Destroyed:
+; None
+;
+;======================================================================
+GetCsSelector PROC NEAR C PUBLIC, CsSelector:PTR
+ push ax
+ push ebx
+
+ call FarCallGetCs
+ mov ebx, CsSelector
+ mov [ebx], ax
+ pop ebx
+ pop ax
+ ret
+GetCsSelector ENDP
+
+;======================================================================
+; FarCallGetCs:
+;
+; In:
+; None
+;
+; Out:
+; None
+;
+; Destroyed:
+; none
+;
+; WARNING: This routine has a mirror routine in the PREMEM segment.
+; These two routines MUST be sync'd for content.
+;======================================================================
+FarCallGetCs PROC FAR PRIVATE
+
+ mov ax, ss:[esp + 4]
+ retf
+
+FarCallGetCs ENDP
+
+;======================================================================
+; SetIdtr:
+;
+; In:
+; None
+;
+; Out:
+; None
+;
+; Destroyed:
+; none
+;
+; WARNING: This routine has a mirror routine in the PREMEM segment.
+; These two routines MUST be sync'd for content.
+;======================================================================
+SetIdtr PROC NEAR C PUBLIC USES EBX, IdtPtr:PTR
+ mov ebx, IdtPtr
+ lidt fword ptr ss:[ebx]
+ ret
+SetIdtr ENDP
+
+;======================================================================
+; ExecuteWbinvdInstruction: Performs a wbinvd instruction.
+;
+; In:
+; None
+;
+; Out:
+; None
+;
+; Destroyed:
+; None
+;
+;======================================================================
+ExecuteWbinvdInstruction PROC NEAR C PUBLIC
+ wbinvd ; Write back the cache tag RAMs
+ ret
+ExecuteWbinvdInstruction ENDP
+
+END