diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f15/Proc/Mem/Main/mu.asm')
-rw-r--r-- | src/vendorcode/amd/agesa/f15/Proc/Mem/Main/mu.asm | 497 |
1 files changed, 497 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f15/Proc/Mem/Main/mu.asm b/src/vendorcode/amd/agesa/f15/Proc/Mem/Main/mu.asm new file mode 100644 index 0000000000..61656df3e7 --- /dev/null +++ b/src/vendorcode/amd/agesa/f15/Proc/Mem/Main/mu.asm @@ -0,0 +1,497 @@ +;***************************************************************************** +; AMD Generic Encapsulated Software Architecture +; +; $Workfile:: mu.asm $ $Revision:: 443#$ $Date: 2010-12-22 02:16:51 -0700 (Wed, 22 Dec 2010) $ +; Description: Main memory controller system configuration for AGESA +; +; +;***************************************************************************** +; +; Copyright (C) 2012 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 + .LIST + + .686p + .MODEL FLAT + .CODE + ASSUME FS: NOTHING + +; Define the calling convention used for the C library modules +;@attention - This should be in a central include file +CALLCONV EQU NEAR C + + +;=============================================================================== +;memUOutPort: +; +; Do a 32 Bit IO Out operation using edx. +; NOTE: This function will be obsolete in the future. +; +; In: Port - port number +; Value - value to be written +; +; Out: +; +; All registers preserved. +;=============================================================================== +MemUOutPort PROC CALLCONV PUBLIC Port:DWORD, Value:DWORD + pushad + mov edx,Port + mov eax,Value + out dx,al + popad + ret +MemUOutPort ENDP + + +;---------------------------------------------------------------------------- +; _SFENCE(); +; +_SFENCE macro + db 0Fh,0AEh,0F8h + endm + +;---------------------------------------------------------------------------- +; _MFENCE(); +; +_MFENCE macro + db 0Fh,0AEh,0F0h + endm + +;---------------------------------------------------------------------------- +; _EXECFENCE(); +; +_EXECFENCE macro + out 0EDh,al ;prevent speculative execution of following instructions + endm + +;=============================================================================== +;MemUWriteCachelines: +; Write a test pattern to DRAM +; +; In: Pattern - pointer to the write pattern +; Address - Physical address to be read +; ClCount - number of cachelines to be read +; Out: +; +;All registers preserved. +;=============================================================================== +MemUWriteCachelines PROC CALLCONV PUBLIC Address:DWORD, Pattern:NEAR PTR DWORD, ClCount:WORD + pushad + push ds + + mov eax,Address + push ss + pop ds + xor edx,edx + mov edx, DWORD PTR Pattern + mov esi,edx + mov edx,16 + _EXECFENCE + xor ecx, ecx + mov cx,ClCount + shl ecx,2 + @@: + db 66h, 0Fh,6Fh,06 ;MOVDQA xmm0,[esi] + db 64h, 66h, 0Fh,0E7h,00 ;MOVNTDQ fs:[eax],xmm0 (xmm0 is 128 bits) + add eax,edx + add esi,edx + loop @B + + pop ds + popad + ret +MemUWriteCachelines ENDP + +;=============================================================================== +;MemUReadCachelines: +; +; Read a pattern of 72 bit times (per DQ), to test dram functionality. The +;pattern is a stress pattern which exercises both ISI and crosstalk. The number +;of cache lines to fill is dependent on DCT width mode and burstlength. +; +; In: Buffer - pointer to a buffer where read data will be stored +; Address - Physical address to be read +; ClCount - number of cachelines to be read +; Out: +; +;All registers preserved. +;=============================================================================== +MemUReadCachelines PROC CALLCONV PUBLIC Buffer:NEAR PTR DWORD, Address:DWORD, ClCount:WORD +LOCAL Count:BYTE + pushad + ; First, issue continuous dummy reads to fill up the cache + mov eax,Address + .if (ClCount > 18) + mov cx,ClCount + shr cx,4 + mov Count,cl + .while (Count != 0) + push eax + mov edi,eax + add edi,128 ;bias value (to account for signed displacement) + ;clflush opcode=0F AE /7 + mov esi,edi + mov ebx,esi + mov ecx,esi + mov edx,esi + add edi,4*64 ;TestAddr+4 cache lines + add ebx,8*64 ;TestAddr+8 cache lines + add ecx,12*64 ;TestAddr+12 cache lines + add edx,16*64 ;TestAddr+16 cache lines + sub edx,128 + _EXECFENCE + mov eax,fs:[esi-128] ;TestAddr + _MFENCE + mov eax,fs:[esi-64] ;TestAddr+1 cache line + _MFENCE + mov eax,fs:[esi] ;TestAddr+2 cache lines + _MFENCE + mov eax,fs:[esi+64] ;TestAddr+3 cache lines + _MFENCE + mov eax,fs:[edi-128] ;TestAddr+4 cache lines + _MFENCE + mov eax,fs:[edi-64] ;TestAddr+5 cache lines + _MFENCE + mov eax,fs:[edi] ;TestAddr+6 cache lines + _MFENCE + mov eax,fs:[edi+64] ;TestAddr+7 cache lines + _MFENCE + mov eax,fs:[ebx-128] ;TestAddr+8 cache lines + _MFENCE + mov eax,fs:[ebx-64] ;TestAddr+9 cache lines + _MFENCE + mov eax,fs:[ebx] ;TestAddr+10 cache lines + _MFENCE + mov eax,fs:[ebx+64] ;TestAddr+11 cache lines + _MFENCE + mov eax,fs:[ecx-128] ;TestAddr+12 cache lines + _MFENCE + mov eax,fs:[ecx-64] ;TestAddr+13 cache lines + _MFENCE + mov eax,fs:[ecx] ;TestAddr+14 cache lines + _MFENCE + mov eax,fs:[ecx+64] ;TestAddr+15 cache lines + _MFENCE + pop eax + add eax,(16*64) ;Next 16CL + dec Count + .endw + .else + mov edi,eax + add edi,128 ;bias value (to account for signed displacement) + ;clflush opcode=0F AE /7 + mov esi,edi + mov ebx,esi + mov ecx,esi + mov edx,esi + add edi,4*64 ;TestAddr+4 cache lines + add ebx,8*64 ;TestAddr+8 cache lines + add ecx,12*64 ;TestAddr+12 cache lines + add edx,16*64 ;TestAddr+16 cache lines + sub edx,128 + .if(ClCount == 1) + _MFENCE + mov eax,fs:[esi-128] ;TestAddr + _MFENCE + .elseif(ClCount == 3) + _EXECFENCE + mov eax,fs:[esi-128] ;TestAddr + _MFENCE + mov eax,fs:[esi-64] ;TestAddr+1 cache line + _MFENCE + mov eax,fs:[esi] ;TestAddr+2 cache lines + _MFENCE + .elseif(ClCount == 6) + _EXECFENCE + mov eax,fs:[esi-128] ;TestAddr + _MFENCE + mov eax,fs:[esi-64] ;TestAddr+1 cache line + _MFENCE + mov eax,fs:[esi] ;TestAddr+2 cache lines + _MFENCE + mov eax,fs:[esi+64] ;TestAddr+3 cache lines + _MFENCE + mov eax,fs:[edi-128] ;TestAddr+4 cache lines + _MFENCE + mov eax,fs:[edi-64] ;TestAddr+5 cache lines + _MFENCE + .elseif(ClCount == 9) + _EXECFENCE + mov eax,fs:[esi-128] ;TestAddr + _MFENCE + mov eax,fs:[esi-64] ;TestAddr+1 cache line + _MFENCE + mov eax,fs:[esi] ;TestAddr+2 cache lines + _MFENCE + mov eax,fs:[esi+64] ;TestAddr+3 cache lines + _MFENCE + mov eax,fs:[edi-128] ;TestAddr+4 cache lines + _MFENCE + mov eax,fs:[edi-64] ;TestAddr+5 cache lines + _MFENCE + mov eax,fs:[edi] ;TestAddr+6 cache lines + _MFENCE + mov eax,fs:[edi+64] ;TestAddr+7 cache lines + _MFENCE + mov eax,fs:[ebx-128] ;TestAddr+8 cache lines + _MFENCE + .elseif(ClCount == 18) + _EXECFENCE + mov eax,fs:[esi-128] ;TestAddr + _MFENCE + mov eax,fs:[esi-64] ;TestAddr+1 cache line + _MFENCE + mov eax,fs:[esi] ;TestAddr+2 cache lines + _MFENCE + mov eax,fs:[esi+64] ;TestAddr+3 cache lines + _MFENCE + mov eax,fs:[edi-128] ;TestAddr+4 cache lines + _MFENCE + mov eax,fs:[edi-64] ;TestAddr+5 cache lines + _MFENCE + mov eax,fs:[edi] ;TestAddr+6 cache lines + _MFENCE + mov eax,fs:[edi+64] ;TestAddr+7 cache lines + _MFENCE + mov eax,fs:[ebx-128] ;TestAddr+8 cache lines + _MFENCE + mov eax,fs:[ebx-64] ;TestAddr+9 cache lines + _MFENCE + mov eax,fs:[ebx] ;TestAddr+10 cache lines + _MFENCE + mov eax,fs:[ebx+64] ;TestAddr+11 cache lines + _MFENCE + mov eax,fs:[ecx-128] ;TestAddr+12 cache lines + _MFENCE + mov eax,fs:[ecx-64] ;TestAddr+13 cache lines + _MFENCE + mov eax,fs:[ecx] ;TestAddr+14 cache lines + _MFENCE + mov eax,fs:[ecx+64] ;TestAddr+15 cache lines + _MFENCE + mov eax,fs:[edx] ;TestAddr+16 cache lines + _MFENCE + mov eax,fs:[edx+64] ;TestAddr+17 cache lines + _MFENCE + .endif + .endif + _MFENCE + + ; Then, copy data to buffer + mov esi,Address + xor edx,edx + mov edx,DWORD PTR Buffer + mov edi,edx + xor ecx, ecx + mov cx,ClCount + shl ecx,6 + @@: + mov al,fs:[esi] + mov ss:[edi],al + inc esi + inc edi + loop @B + + popad + ret +MemUReadCachelines ENDP + +;=============================================================================== +;MemUDummyCLRead: +; +; Perform a single cache line read from a given physical address. +; +; In: Address - Physical address to be read +; ClCount - number of cachelines to be read +; Out: +; +;All registers preserved. +;=============================================================================== +MemUDummyCLRead PROC CALLCONV PUBLIC Address:DWORD + _SFENCE + pushad + mov eax,Address + mov dl,fs:[eax] + popad + ret +MemUDummyCLRead ENDP + +;=============================================================================== +;MemUFlushPattern: +; +; Flush a pattern of 72 bit times (per DQ) from cache. This procedure is used +;to ensure cache miss on the next read training. +; +; In: Address - Physical address to be flushed +; ClCount - number of cachelines to be flushed +; Out: +; +;All registers preserved. +;=============================================================================== +MemUFlushPattern PROC CALLCONV PUBLIC Address:DWORD, ClCount:WORD + pushad + mov edi,Address + movzx ecx,ClCount + @@: + _MFENCE ; Force strong ordering of clflush + db 64h,0Fh,0AEh,3Fh ; MemUClFlush fs:[edi] + _MFENCE + add edi,64 + loop @B + popad + ret +MemUFlushPattern ENDP + + +;=============================================================================== +;MemUGetWrLvNblErr: +; Read ClCount number of cachelines then return the bitmap that indicates +; the write leveling result of each byte lane. +; +; IN: ErrBitmap - pointer to a DWORD that will be assigned with WL result +; Address - Physical address to be sampled +; ClCount - number of cachelines to be read +; +; OUT: ErrBitmap - WL result +; +;All registers preserved +;=============================================================================== +MemUGetWrLvNblErr PROC CALLCONV PUBLIC ErrBitmap:NEAR PTR DWORD, Address:DWORD, ClCount:WORD +LOCAL ZeroCount[32]:WORD + + pushad + mov esi,Address + _EXECFENCE + ;Cache fill + movzx ecx,ClCount + @@: + mov eax,fs:[esi] + add esi,64 + loop @B + _MFENCE + + ; Then, count the number of 0's + ;push es + ;push ss + ;pop es + lea edi,ZeroCount + mov cx,SIZEOF ZeroCount + mov al,0 + rep stosb + ;pop es + + mov esi,Address + lea edi,ZeroCount + mov cx,ClCount + shl cx,6 + .while(cx > 0) + mov al,fs:[esi] + test al,00Fh ;check lower nibble + .if(ZERO?) + inc WORD PTR [edi] + .endif + add edi,2 + test al,0F0h ;check upper nibble + .if(ZERO?) + inc WORD PTR [edi] + .endif + add edi,2 + inc esi + dec cx + test cx,07h + .if(ZERO?) + sub edi,(16*2) + sub cx,8 + add esi,8 + .endif + .endw + + ; Then, average and compress data to error bits + lea esi,ZeroCount + mov dx,ClCount + shl dx,1 + xor eax,eax + xor ecx,ecx + mov cl,0 + .while(cl<16) + .if(WORD PTR [esi] < dx) + bts eax,ecx + .endif + add esi,2 + inc cl + .endw + xor edx,edx + mov dx,WORD PTR ErrBitmap + mov [edx], ax + + popad + ret +MemUGetWrLvNblErr ENDP + +;=============================================================================== +;AlignPointerTo16Byte: +; Modifies BufferPtr to be 16 byte aligned +; +; In: BufferPtrPtr - Pointer to buffer pointer +; Out: BufferPtrPtr - Pointer to buffer pointer that has been 16 byte aligned +; +;All registers preserved. +;=============================================================================== +AlignPointerTo16Byte PROC CALLCONV PUBLIC BufferPtrPtr:NEAR PTR DWORD + push edx + push eax + mov edx, BufferPtrPtr + mov eax, [edx] + add eax, 16 + and ax, 0FFF0h + mov [edx], eax + pop eax + pop edx + ret +AlignPointerTo16Byte ENDP + +;=============================================================================== +;MemUMFenceInstr: +; Serialize instruction +; +; In: +; Out: +; +;All registers preserved. +;=============================================================================== +MemUMFenceInstr PROC CALLCONV PUBLIC + _MFENCE + ret +MemUMFenceInstr ENDP + + END + |