Index: projects/nfs-over-tls/sys/crypto/skein/amd64/skein_block_asm.s =================================================================== --- projects/nfs-over-tls/sys/crypto/skein/amd64/skein_block_asm.s (revision 362498) +++ projects/nfs-over-tls/sys/crypto/skein/amd64/skein_block_asm.s (nonexistent) @@ -1,1331 +0,0 @@ -# -#---------------------------------------------------------------- -# 64-bit x86 assembler code (gnu as) for Skein block functions -# -# Author: Doug Whiting, Hifn/Exar -# -# This code is released to the public domain. -#---------------------------------------------------------------- -# $FreeBSD$ -# - .text - .altmacro - .psize 0,128 #list file has no page boundaries -# -_MASK_ALL_ = (256+512+1024) #all three algorithm bits -_MAX_FRAME_ = 240 -# -################# -.ifndef SKEIN_USE_ASM -_USE_ASM_ = _MASK_ALL_ -.else -_USE_ASM_ = SKEIN_USE_ASM -.endif -################# -.ifndef SKEIN_LOOP #configure loop unrolling -_SKEIN_LOOP = 2 #default is fully unrolled for 256/512, twice for 1024 -.else -_SKEIN_LOOP = SKEIN_LOOP - .irp _NN_,%_SKEIN_LOOP #only display loop unrolling if default changed on command line -#.print "+++ SKEIN_LOOP = \_NN_" - .endr -.endif -# the unroll counts (0 --> fully unrolled) -SKEIN_UNROLL_256 = (_SKEIN_LOOP / 100) % 10 -SKEIN_UNROLL_512 = (_SKEIN_LOOP / 10) % 10 -SKEIN_UNROLL_1024 = (_SKEIN_LOOP ) % 10 -# -SKEIN_ASM_UNROLL = 0 - .irp _NN_,256,512,1024 - .if (SKEIN_UNROLL_\_NN_) == 0 -SKEIN_ASM_UNROLL = SKEIN_ASM_UNROLL + \_NN_ - .endif - .endr -################# -# -.ifndef SKEIN_ROUNDS -ROUNDS_256 = 72 -ROUNDS_512 = 72 -ROUNDS_1024 = 80 -.else -ROUNDS_256 = 8*((((SKEIN_ROUNDS / 100) + 5) % 10) + 5) -ROUNDS_512 = 8*((((SKEIN_ROUNDS / 10) + 5) % 10) + 5) -ROUNDS_1024 = 8*((((SKEIN_ROUNDS ) + 5) % 10) + 5) -# only display rounds if default size is changed on command line -.irp _NN_,256,512,1024 - .if _USE_ASM_ && \_NN_ - .irp _RR_,%(ROUNDS_\_NN_) - .if _NN_ < 1024 -.print "+++ SKEIN_ROUNDS_\_NN_ = \_RR_" - .else -.print "+++ SKEIN_ROUNDS_\_NN_ = \_RR_" - .endif - .endr - .endif -.endr -.endif -################# -# -.ifdef SKEIN_CODE_SIZE -_SKEIN_CODE_SIZE = (1) -.else -.ifdef SKEIN_PERF #use code size if SKEIN_PERF is defined -_SKEIN_CODE_SIZE = (1) -.else -_SKEIN_CODE_SIZE = (0) -.endif -.endif -# -################# -# -.ifndef SKEIN_DEBUG -_SKEIN_DEBUG = 0 -.else -_SKEIN_DEBUG = 1 -.endif -################# -# -# define offsets of fields in hash context structure -# -HASH_BITS = 0 #bits of hash output -BCNT = 8 + HASH_BITS #number of bytes in BUFFER[] -TWEAK = 8 + BCNT #tweak values[0..1] -X_VARS = 16 + TWEAK #chaining vars -# -#(Note: buffer[] in context structure is NOT needed here :-) -# -KW_PARITY = 0x1BD11BDAA9FC1A22 #overall parity of key schedule words -FIRST_MASK = ~ (1 << 6) -FIRST_MASK64= ~ (1 << 62) -# -# rotation constants for Skein -# -RC_256_0_0 = 14 -RC_256_0_1 = 16 - -RC_256_1_0 = 52 -RC_256_1_1 = 57 - -RC_256_2_0 = 23 -RC_256_2_1 = 40 - -RC_256_3_0 = 5 -RC_256_3_1 = 37 - -RC_256_4_0 = 25 -RC_256_4_1 = 33 - -RC_256_5_0 = 46 -RC_256_5_1 = 12 - -RC_256_6_0 = 58 -RC_256_6_1 = 22 - -RC_256_7_0 = 32 -RC_256_7_1 = 32 - -RC_512_0_0 = 46 -RC_512_0_1 = 36 -RC_512_0_2 = 19 -RC_512_0_3 = 37 - -RC_512_1_0 = 33 -RC_512_1_1 = 27 -RC_512_1_2 = 14 -RC_512_1_3 = 42 - -RC_512_2_0 = 17 -RC_512_2_1 = 49 -RC_512_2_2 = 36 -RC_512_2_3 = 39 - -RC_512_3_0 = 44 -RC_512_3_1 = 9 -RC_512_3_2 = 54 -RC_512_3_3 = 56 - -RC_512_4_0 = 39 -RC_512_4_1 = 30 -RC_512_4_2 = 34 -RC_512_4_3 = 24 - -RC_512_5_0 = 13 -RC_512_5_1 = 50 -RC_512_5_2 = 10 -RC_512_5_3 = 17 - -RC_512_6_0 = 25 -RC_512_6_1 = 29 -RC_512_6_2 = 39 -RC_512_6_3 = 43 - -RC_512_7_0 = 8 -RC_512_7_1 = 35 -RC_512_7_2 = 56 -RC_512_7_3 = 22 - -RC_1024_0_0 = 24 -RC_1024_0_1 = 13 -RC_1024_0_2 = 8 -RC_1024_0_3 = 47 -RC_1024_0_4 = 8 -RC_1024_0_5 = 17 -RC_1024_0_6 = 22 -RC_1024_0_7 = 37 - -RC_1024_1_0 = 38 -RC_1024_1_1 = 19 -RC_1024_1_2 = 10 -RC_1024_1_3 = 55 -RC_1024_1_4 = 49 -RC_1024_1_5 = 18 -RC_1024_1_6 = 23 -RC_1024_1_7 = 52 - -RC_1024_2_0 = 33 -RC_1024_2_1 = 4 -RC_1024_2_2 = 51 -RC_1024_2_3 = 13 -RC_1024_2_4 = 34 -RC_1024_2_5 = 41 -RC_1024_2_6 = 59 -RC_1024_2_7 = 17 - -RC_1024_3_0 = 5 -RC_1024_3_1 = 20 -RC_1024_3_2 = 48 -RC_1024_3_3 = 41 -RC_1024_3_4 = 47 -RC_1024_3_5 = 28 -RC_1024_3_6 = 16 -RC_1024_3_7 = 25 - -RC_1024_4_0 = 41 -RC_1024_4_1 = 9 -RC_1024_4_2 = 37 -RC_1024_4_3 = 31 -RC_1024_4_4 = 12 -RC_1024_4_5 = 47 -RC_1024_4_6 = 44 -RC_1024_4_7 = 30 - -RC_1024_5_0 = 16 -RC_1024_5_1 = 34 -RC_1024_5_2 = 56 -RC_1024_5_3 = 51 -RC_1024_5_4 = 4 -RC_1024_5_5 = 53 -RC_1024_5_6 = 42 -RC_1024_5_7 = 41 - -RC_1024_6_0 = 31 -RC_1024_6_1 = 44 -RC_1024_6_2 = 47 -RC_1024_6_3 = 46 -RC_1024_6_4 = 19 -RC_1024_6_5 = 42 -RC_1024_6_6 = 44 -RC_1024_6_7 = 25 - -RC_1024_7_0 = 9 -RC_1024_7_1 = 48 -RC_1024_7_2 = 35 -RC_1024_7_3 = 52 -RC_1024_7_4 = 23 -RC_1024_7_5 = 31 -RC_1024_7_6 = 37 -RC_1024_7_7 = 20 -# -# Input: reg -# Output: <<< RC_BlkSize_roundNum_mixNum, BlkSize=256/512/1024 -# -.macro RotL64 reg,BLK_SIZE,ROUND_NUM,MIX_NUM -_RCNT_ = RC_\BLK_SIZE&_\ROUND_NUM&_\MIX_NUM - .if _RCNT_ #is there anything to do? - rolq $_RCNT_,%\reg - .endif -.endm -# -#---------------------------------------------------------------- -# -# MACROS: define local vars and configure stack -# -#---------------------------------------------------------------- -# declare allocated space on the stack -.macro StackVar localName,localSize -\localName = _STK_OFFS_ -_STK_OFFS_ = _STK_OFFS_+(\localSize) -.endm #StackVar -# -#---------------------------------------------------------------- -# -# MACRO: Configure stack frame, allocate local vars -# -.macro Setup_Stack BLK_BITS,KS_CNT,debugCnt - WCNT = (\BLK_BITS)/64 -# -_PushCnt_ = 0 #save nonvolatile regs on stack - .irp _reg_,rbp,rbx,r12,r13,r14,r15 - pushq %\_reg_ -_PushCnt_ = _PushCnt_ + 1 #track count to keep alignment - .endr -# -_STK_OFFS_ = 0 #starting offset from rsp - #---- local variables #<-- rsp - StackVar X_stk ,8*(WCNT) #local context vars - StackVar ksTwk ,8*3 #key schedule: tweak words - StackVar ksKey ,8*(WCNT)+8 #key schedule: key words - .if (SKEIN_ASM_UNROLL && (\BLK_BITS)) == 0 - StackVar ksRot ,16*(\KS_CNT) #leave space for "rotation" to happen - .endif - StackVar Wcopy ,8*(WCNT) #copy of input block - .if _SKEIN_DEBUG - .if \debugCnt + 0 #temp location for debug X[] info - StackVar xDebug_\BLK_BITS ,8*(\debugCnt) - .endif - .endif - .if ((8*_PushCnt_ + _STK_OFFS_) % 8) == 0 - StackVar align16,8 #keep 16-byte aligned (adjust for retAddr?) -tmpStk_\BLK_BITS = align16 #use this - .endif - #---- saved caller parameters (from regs rdi, rsi, rdx, rcx) - StackVar ctxPtr ,8 #context ptr - StackVar blkPtr ,8 #pointer to block data - StackVar blkCnt ,8 #number of full blocks to process - StackVar bitAdd ,8 #bit count to add to tweak -LOCAL_SIZE = _STK_OFFS_ #size of "local" vars - #---- - StackVar savRegs,8*_PushCnt_ #saved registers - StackVar retAddr,8 #return address - #---- caller's stack frame (aligned mod 16) -# -# set up the stack frame pointer (rbp) -# -FRAME_OFFS = ksTwk + 128 #allow short (negative) offset to ksTwk, kwKey - .if FRAME_OFFS > _STK_OFFS_ #keep rbp in the "locals" range -FRAME_OFFS = _STK_OFFS_ - .endif -F_O = -FRAME_OFFS -# - #put some useful defines in the .lst file (for grep) -__STK_LCL_SIZE_\BLK_BITS = LOCAL_SIZE -__STK_TOT_SIZE_\BLK_BITS = _STK_OFFS_ -__STK_FRM_OFFS_\BLK_BITS = FRAME_OFFS -# -# Notes on stack frame setup: -# * the most frequently used variable is X_stk[], based at [rsp+0] -# * the next most used is the key schedule arrays, ksKey and ksTwk -# so rbp is "centered" there, allowing short offsets to the key -# schedule even in 1024-bit Skein case -# * the Wcopy variables are infrequently accessed, but they have long -# offsets from both rsp and rbp only in the 1024-bit case. -# * all other local vars and calling parameters can be accessed -# with short offsets, except in the 1024-bit case -# - subq $LOCAL_SIZE,%rsp #make room for the locals - leaq FRAME_OFFS(%rsp),%rbp #maximize use of short offsets - movq %rdi, ctxPtr+F_O(%rbp) #save caller's parameters on the stack - movq %rsi, blkPtr+F_O(%rbp) - movq %rdx, blkCnt+F_O(%rbp) - movq %rcx, bitAdd+F_O(%rbp) -# -.endm #Setup_Stack -# -#---------------------------------------------------------------- -# -.macro Reset_Stack - addq $LOCAL_SIZE,%rsp #get rid of locals (wipe??) - .irp _reg_,r15,r14,r13,r12,rbx,rbp - popq %\_reg_ #restore caller's regs -_PushCnt_ = _PushCnt_ - 1 - .endr - .if _PushCnt_ - .error "Mismatched push/pops?" - .endif -.endm # Reset_Stack -# -#---------------------------------------------------------------- -# macros to help debug internals -# -.if _SKEIN_DEBUG - .extern Skein_Show_Block #calls to C routines - .extern Skein_Show_Round -# -SKEIN_RND_SPECIAL = 1000 -SKEIN_RND_KEY_INITIAL = SKEIN_RND_SPECIAL+0 -SKEIN_RND_KEY_INJECT = SKEIN_RND_SPECIAL+1 -SKEIN_RND_FEED_FWD = SKEIN_RND_SPECIAL+2 -# -.macro Skein_Debug_Block BLK_BITS -# -#void Skein_Show_Block(uint_t bits,const Skein_Ctxt_Hdr_t *h,const u64b_t *X, -# const u08b_t *blkPtr, const u64b_t *wPtr, -# const u64b_t *ksPtr,const u64b_t *tsPtr) -# -_NN_ = 0 - .irp _reg_,rax,rcx,rdx,rsi,rdi,r8,r9,r10,r11 - pushq %\_reg_ #save all volatile regs on tack before the call -_NN_ = _NN_ + 1 - .endr - # get and push call parameters - movq $\BLK_BITS ,%rdi #bits - movq ctxPtr+F_O(%rbp),%rsi #h (pointer) - leaq X_VARS (%rsi),%rdx #X (pointer) - movq blkPtr+F_O(%rbp),%rcx #blkPtr - leaq Wcopy +F_O(%rbp),%r8 #wPtr - leaq ksKey +F_O(%rbp),%r9 #key pointer - leaq ksTwk +F_O(%rbp),%rax #tweak pointer - pushq %rax # (pass on the stack) - call Skein_Show_Block #call external debug handler - addq $8*1,%rsp #discard parameters on stack - .if (_NN_ % 2 ) == 0 #check stack alignment - .error "Stack misalignment problem in Skein_Debug_Block_\_BLK_BITS" - .endif - .irp _reg_,r11,r10,r9,r8,rdi,rsi,rdx,rcx,rax - popq %\_reg_ #restore regs -_NN_ = _NN_ - 1 - .endr - .if _NN_ - .error "Push/pop mismatch problem in Skein_Debug_Block_\_BLK_BITS" - .endif -.endm # Skein_Debug_Block -# -# the macro to "call" to debug a round -# -.macro Skein_Debug_Round BLK_BITS,R,RDI_OFFS,afterOp - # call the appropriate (local) debug "function" - pushq %rdx #save rdx, so we can use it for round "number" - .if (SKEIN_ASM_UNROLL && \BLK_BITS) || (\R >= SKEIN_RND_SPECIAL) - movq $\R,%rdx - .else #compute round number using edi -_rOffs_ = \RDI_OFFS + 0 - .if \BLK_BITS == 1024 - movq rIdx_offs+8(%rsp),%rdx #get rIdx off the stack (adjust for pushq rdx above) - leaq 1+(((\R)-1) && 3)+_rOffs_(,%rdx,4),%rdx - .else - leaq 1+(((\R)-1) && 3)+_rOffs_(,%rdi,4),%rdx - .endif - .endif - call Skein_Debug_Round_\BLK_BITS - popq %rdx #restore origianl rdx value -# - afterOp -.endm # Skein_Debug_Round -.else #------- _SKEIN_DEBUG (dummy macros if debug not enabled) -.macro Skein_Debug_Block BLK_BITS -.endm -# -.macro Skein_Debug_Round BLK_BITS,R,RDI_OFFS,afterOp -.endm -# -.endif # _SKEIN_DEBUG -# -#---------------------------------------------------------------- -# -.macro addReg dstReg,srcReg_A,srcReg_B,useAddOp,immOffs - .if \immOffs + 0 - leaq \immOffs(%\srcReg_A\srcReg_B,%\dstReg),%\dstReg - .elseif ((\useAddOp + 0) == 0) - .ifndef ASM_NO_LEA #lea seems to be faster on Core 2 Duo CPUs! - leaq (%\srcReg_A\srcReg_B,%\dstReg),%\dstReg - .else - addq %\srcReg_A\srcReg_B,%\dstReg - .endif - .else - addq %\srcReg_A\srcReg_B,%\dstReg - .endif -.endm - -# keep Intel-style ordering here, to match addReg -.macro xorReg dstReg,srcReg_A,srcReg_B - xorq %\srcReg_A\srcReg_B,%\dstReg -.endm -# -#---------------------------------------------------------------- -# -.macro C_label lName - \lName: #use both "genders" to work across linkage conventions -_\lName: - .global \lName - .global _\lName -.endm -# -#=================================== Skein_256 ============================================= -# -.if _USE_ASM_ & 256 -# -# void Skein_256_Process_Block(Skein_256_Ctxt_t *ctx,const u08b_t *blkPtr,size_t blkCnt,size_t bitcntAdd)# -# -################# -# -# code -# -C_label Skein_256_Process_Block - Setup_Stack 256,((ROUNDS_256/8)+1) - movq TWEAK+8(%rdi),%r14 - jmp Skein_256_block_loop - .p2align 4 - # main hash loop for Skein_256 -Skein_256_block_loop: - # - # general register usage: - # RAX..RDX = X0..X3 - # R08..R12 = ks[0..4] - # R13..R15 = ts[0..2] - # RSP, RBP = stack/frame pointers - # RDI = round counter or context pointer - # RSI = temp - # - movq TWEAK+0(%rdi) ,%r13 - addq bitAdd+F_O(%rbp) ,%r13 #computed updated tweak value T0 - movq %r14 ,%r15 - xorq %r13 ,%r15 #now %r13.%r15 is set as the tweak - - movq $KW_PARITY ,%r12 - movq X_VARS+ 0(%rdi),%r8 - movq X_VARS+ 8(%rdi),%r9 - movq X_VARS+16(%rdi),%r10 - movq X_VARS+24(%rdi),%r11 - movq %r13,TWEAK+0(%rdi) #save updated tweak value ctx->h.T[0] - xorq %r8 ,%r12 #start accumulating overall parity - - movq blkPtr +F_O(%rbp) ,%rsi #esi --> input block - xorq %r9 ,%r12 - movq 0(%rsi) ,%rax #get X[0..3] - xorq %r10 ,%r12 - movq 8(%rsi) ,%rbx - xorq %r11 ,%r12 - movq 16(%rsi) ,%rcx - movq 24(%rsi) ,%rdx - - movq %rax,Wcopy+ 0+F_O(%rbp) #save copy of input block - movq %rbx,Wcopy+ 8+F_O(%rbp) - movq %rcx,Wcopy+16+F_O(%rbp) - movq %rdx,Wcopy+24+F_O(%rbp) - - addq %r8 ,%rax #initial key injection - addq %r9 ,%rbx - addq %r10,%rcx - addq %r11,%rdx - addq %r13,%rbx - addq %r14,%rcx - -.if _SKEIN_DEBUG - movq %r14,TWEAK+ 8(%rdi) #save updated tweak T[1] (start bit cleared?) - movq %r8 ,ksKey+ 0+F_O(%rbp) #save key schedule on stack for Skein_Debug_Block - movq %r9 ,ksKey+ 8+F_O(%rbp) - movq %r10,ksKey+16+F_O(%rbp) - movq %r11,ksKey+24+F_O(%rbp) - movq %r12,ksKey+32+F_O(%rbp) - - movq %r13,ksTwk+ 0+F_O(%rbp) - movq %r14,ksTwk+ 8+F_O(%rbp) - movq %r15,ksTwk+16+F_O(%rbp) - - movq %rax,X_stk + 0(%rsp) #save X[] on stack for Skein_Debug_Block - movq %rbx,X_stk + 8(%rsp) - movq %rcx,X_stk +16(%rsp) - movq %rdx,X_stk +24(%rsp) - - Skein_Debug_Block 256 #debug dump - Skein_Debug_Round 256,SKEIN_RND_KEY_INITIAL -.endif -# -.if ((SKEIN_ASM_UNROLL & 256) == 0) - movq %r8 ,ksKey+40+F_O(%rbp) #save key schedule on stack for looping code - movq %r9 ,ksKey+ 8+F_O(%rbp) - movq %r10,ksKey+16+F_O(%rbp) - movq %r11,ksKey+24+F_O(%rbp) - movq %r12,ksKey+32+F_O(%rbp) - - movq %r13,ksTwk+24+F_O(%rbp) - movq %r14,ksTwk+ 8+F_O(%rbp) - movq %r15,ksTwk+16+F_O(%rbp) -.endif - addq $WCNT*8,%rsi #skip the block - movq %rsi,blkPtr +F_O(%rbp) #update block pointer - # - # now the key schedule is computed. Start the rounds - # -.if SKEIN_ASM_UNROLL & 256 -_UNROLL_CNT = ROUNDS_256/8 -.else -_UNROLL_CNT = SKEIN_UNROLL_256 - .if ((ROUNDS_256/8) % _UNROLL_CNT) - .error "Invalid SKEIN_UNROLL_256" - .endif - xorq %rdi,%rdi #rdi = iteration count -Skein_256_round_loop: -.endif -_Rbase_ = 0 -.rept _UNROLL_CNT*2 - # all X and ks vars in regs # (ops to "rotate" ks vars, via mem, if not unrolled) - # round 4*_RBase_ + 0 - addReg rax, rbx - RotL64 rbx, 256,%((4*_Rbase_+0) % 8),0 - addReg rcx, rdx - .if (SKEIN_ASM_UNROLL & 256) == 0 - movq ksKey+8*1+F_O(%rbp,%rdi,8),%r8 - .endif - xorReg rbx, rax - RotL64 rdx, 256,%((4*_Rbase_+0) % 8),1 - xorReg rdx, rcx - .if SKEIN_ASM_UNROLL & 256 - .irp _r0_,%( 8+(_Rbase_+3) % 5) - .irp _r1_,%(13+(_Rbase_+2) % 3) - leaq (%r\_r0_,%r\_r1_),%rdi #precompute key injection value for %rcx - .endr - .endr - .endif - .if (SKEIN_ASM_UNROLL & 256) == 0 - movq ksTwk+8*1+F_O(%rbp,%rdi,8),%r13 - .endif - Skein_Debug_Round 256,%(4*_Rbase_+1) - - # round 4*_Rbase_ + 1 - addReg rax, rdx - RotL64 rdx, 256,%((4*_Rbase_+1) % 8),0 - xorReg rdx, rax - .if (SKEIN_ASM_UNROLL & 256) == 0 - movq ksKey+8*2+F_O(%rbp,%rdi,8),%r9 - .endif - addReg rcx, rbx - RotL64 rbx, 256,%((4*_Rbase_+1) % 8),1 - xorReg rbx, rcx - .if (SKEIN_ASM_UNROLL & 256) == 0 - movq ksKey+8*4+F_O(%rbp,%rdi,8),%r11 - .endif - Skein_Debug_Round 256,%(4*_Rbase_+2) - .if SKEIN_ASM_UNROLL & 256 - .irp _r0_,%( 8+(_Rbase_+2) % 5) - .irp _r1_,%(13+(_Rbase_+1) % 3) - leaq (%r\_r0_,%r\_r1_),%rsi #precompute key injection value for %rbx - .endr - .endr - .endif - # round 4*_Rbase_ + 2 - addReg rax, rbx - RotL64 rbx, 256,%((4*_Rbase_+2) % 8),0 - addReg rcx, rdx - .if (SKEIN_ASM_UNROLL & 256) == 0 - movq ksKey+8*3+F_O(%rbp,%rdi,8),%r10 - .endif - xorReg rbx, rax - RotL64 rdx, 256,%((4*_Rbase_+2) % 8),1 - xorReg rdx, rcx - .if (SKEIN_ASM_UNROLL & 256) == 0 - movq %r8,ksKey+8*6+F_O(%rbp,%rdi,8) #"rotate" the key - leaq 1(%r11,%rdi),%r11 #precompute key + tweak - .endif - Skein_Debug_Round 256,%(4*_Rbase_+3) - # round 4*_Rbase_ + 3 - addReg rax, rdx - RotL64 rdx, 256,%((4*_Rbase_+3) % 8),0 - addReg rcx, rbx - .if (SKEIN_ASM_UNROLL & 256) == 0 - addq ksTwk+8*2+F_O(%rbp,%rdi,8),%r10 #precompute key + tweak - movq %r13,ksTwk+8*4+F_O(%rbp,%rdi,8) #"rotate" the tweak - .endif - xorReg rdx, rax - RotL64 rbx, 256,%((4*_Rbase_+3) % 8),1 - xorReg rbx, rcx - Skein_Debug_Round 256,%(4*_Rbase_+4) - .if (SKEIN_ASM_UNROLL & 256) == 0 - addReg r9 ,r13 #precompute key+tweak - .endif - #inject key schedule words -_Rbase_ = _Rbase_+1 - .if SKEIN_ASM_UNROLL & 256 - addReg rax,r,%(8+((_Rbase_+0) % 5)) - addReg rbx,rsi - addReg rcx,rdi - addReg rdx,r,%(8+((_Rbase_+3) % 5)),,_Rbase_ - .else - incq %rdi - addReg rax,r8 - addReg rcx,r10 - addReg rbx,r9 - addReg rdx,r11 - .endif - Skein_Debug_Round 256,SKEIN_RND_KEY_INJECT -.endr #rept _UNROLL_CNT -# -.if (SKEIN_ASM_UNROLL & 256) == 0 - cmpq $2*(ROUNDS_256/8),%rdi - jb Skein_256_round_loop -.endif # (SKEIN_ASM_UNROLL & 256) == 0 - movq ctxPtr +F_O(%rbp),%rdi #restore rdi --> context - - #---------------------------- - # feedforward: ctx->X[i] = X[i] ^ w[i], {i=0..3} - movq $FIRST_MASK64 ,%r14 - xorq Wcopy + 0+F_O (%rbp),%rax - xorq Wcopy + 8+F_O (%rbp),%rbx - xorq Wcopy +16+F_O (%rbp),%rcx - xorq Wcopy +24+F_O (%rbp),%rdx - andq TWEAK + 8 (%rdi),%r14 - movq %rax,X_VARS+ 0(%rdi) #store final result - movq %rbx,X_VARS+ 8(%rdi) - movq %rcx,X_VARS+16(%rdi) - movq %rdx,X_VARS+24(%rdi) - - Skein_Debug_Round 256,SKEIN_RND_FEED_FWD - - # go back for more blocks, if needed - decq blkCnt+F_O(%rbp) - jnz Skein_256_block_loop - movq %r14,TWEAK + 8(%rdi) - Reset_Stack - ret -Skein_256_Process_Block_End: - - .if _SKEIN_DEBUG -Skein_Debug_Round_256: #here with rdx == round "number" from macro - pushq %rsi #save two regs for BLK_BITS-specific parms - pushq %rdi - movq 24(%rsp),%rdi #get back original rdx (pushed on stack in macro call) to rdi - movq %rax,X_stk+ 0+F_O(%rbp) #save X[] state on stack so debug routines can access it - movq %rbx,X_stk+ 8+F_O(%rbp) #(use FP_ since rsp has changed!) - movq %rcx,X_stk+16+F_O(%rbp) - movq %rdi,X_stk+24+F_O(%rbp) - - movq ctxPtr+F_O(%rbp),%rsi #ctx_hdr_ptr - movq $256,%rdi #now are set for the call - jmp Skein_Debug_Round_Common - .endif -# -.if _SKEIN_CODE_SIZE -C_label Skein_256_Process_Block_CodeSize - movq $(Skein_256_Process_Block_End-Skein_256_Process_Block),%rax - ret -# -C_label Skein_256_Unroll_Cnt - .if _UNROLL_CNT <> ROUNDS_256/8 - movq $_UNROLL_CNT,%rax - .else - xorq %rax,%rax - .endif - ret -.endif -# -.endif #_USE_ASM_ & 256 -# -#=================================== Skein_512 ============================================= -# -.if _USE_ASM_ & 512 -# -# void Skein_512_Process_Block(Skein_512_Ctxt_t *ctx,const u08b_t *blkPtr,size_t blkCnt,size_t bitcntAdd) -# -# X[i] == %r[8+i] #register assignments for X[] values during rounds (i=0..7) -# -################# -# MACRO: one round for 512-bit blocks -# -.macro R_512_OneRound rn0,rn1,rn2,rn3,rn4,rn5,rn6,rn7,_Rn_,op1,op2,op3,op4 -# - addReg r\rn0, r\rn1 - RotL64 r\rn1, 512,%((_Rn_) % 8),0 - xorReg r\rn1, r\rn0 - op1 - addReg r\rn2, r\rn3 - RotL64 r\rn3, 512,%((_Rn_) % 8),1 - xorReg r\rn3, r\rn2 - op2 - addReg r\rn4, r\rn5 - RotL64 r\rn5, 512,%((_Rn_) % 8),2 - xorReg r\rn5, r\rn4 - op3 - addReg r\rn6, r\rn7 - RotL64 r\rn7, 512,%((_Rn_) % 8),3 - xorReg r\rn7, r\rn6 - op4 - Skein_Debug_Round 512,%(_Rn_+1),-4 -# -.endm #R_512_OneRound -# -################# -# MACRO: eight rounds for 512-bit blocks -# -.macro R_512_FourRounds _RR_ #RR = base round number (0 % 8) - .if (SKEIN_ASM_UNROLL && 512) - # here for fully unrolled case. - _II_ = ((_RR_)/4) + 1 #key injection counter - R_512_OneRound 8, 9,10,11,12,13,14,15,%((_RR_)+0),,, - R_512_OneRound 10, 9,12,15,14,13, 8,11,%((_RR_)+1),,, - R_512_OneRound 12, 9,14,11, 8,13,10,15,%((_RR_)+2),,, - R_512_OneRound 14, 9, 8,15,10,13,12,11,%((_RR_)+3),, - # inject the key schedule - addq ksKey+8*(((_II_)+0)%9)+F_O(%rbp),%r8 - addReg r11, rax - addq ksKey+8*(((_II_)+1)%9)+F_O(%rbp),%r9 - addReg r12, rbx - addq ksKey+8*(((_II_)+2)%9)+F_O(%rbp),%r10 - addReg r13, rcx - addReg r14, rdx - addReg r15, rsi,,,(_II_) - .else - # here for looping case #"rotate" key/tweak schedule (move up on stack) - incq %rdi #bump key injection counter - R_512_OneRound 8, 9,10,11,12,13,14,15,%((_RR_)+0),,, - R_512_OneRound 10, 9,12,15,14,13, 8,11,%((_RR_)+1),,, - R_512_OneRound 12, 9,14,11, 8,13,10,15,%((_RR_)+2),,, - R_512_OneRound 14, 9, 8,15,10,13,12,11,%((_RR_)+3),, - # inject the key schedule - addq ksKey+8*0+F_O(%rbp,%rdi,8),%r8 - addReg r11, rax - addReg r12, rbx - addq ksKey+8*1+F_O(%rbp,%rdi,8),%r9 - addReg r13, rcx - addReg r14, rdx - addq ksKey+8*2+F_O(%rbp,%rdi,8),%r10 - addReg r15, rsi - addReg r15, rdi #inject the round number - .endif - - #show the result of the key injection - Skein_Debug_Round 512,SKEIN_RND_KEY_INJECT -.endm #R_512_EightRounds -# -################# -# instantiated code -# -C_label Skein_512_Process_Block - Setup_Stack 512,ROUNDS_512/8 - movq TWEAK+ 8(%rdi),%rbx - jmp Skein_512_block_loop - .p2align 4 - # main hash loop for Skein_512 -Skein_512_block_loop: - # general register usage: - # RAX..RDX = temps for key schedule pre-loads - # R8 ..R15 = X0..X7 - # RSP, RBP = stack/frame pointers - # RDI = round counter or context pointer - # RSI = temp - # - movq TWEAK + 0(%rdi),%rax - addq bitAdd+F_O(%rbp),%rax #computed updated tweak value T0 - movq %rbx,%rcx - xorq %rax,%rcx #%rax/%rbx/%rcx = tweak schedule - movq %rax,TWEAK+ 0 (%rdi) #save updated tweak value ctx->h.T[0] - movq %rax,ksTwk+ 0+F_O(%rbp) - movq $KW_PARITY,%rdx - movq blkPtr +F_O(%rbp),%rsi #%rsi --> input block - movq %rbx,ksTwk+ 8+F_O(%rbp) - movq %rcx,ksTwk+16+F_O(%rbp) - .irp _Rn_,8,9,10,11,12,13,14,15 - movq X_VARS+8*(_Rn_-8)(%rdi),%r\_Rn_ - xorq %r\_Rn_,%rdx #compute overall parity - movq %r\_Rn_,ksKey+8*(_Rn_-8)+F_O(%rbp) - .endr #load state into %r8 ..%r15, compute parity - movq %rdx,ksKey+8*(8)+F_O(%rbp)#save key schedule parity - - addReg r13,rax #precompute key injection for tweak - addReg r14, rbx -.if _SKEIN_DEBUG - movq %rbx,TWEAK+ 8(%rdi) #save updated tweak value ctx->h.T[1] for Skein_Debug_Block below -.endif - movq 0(%rsi),%rax #load input block - movq 8(%rsi),%rbx - movq 16(%rsi),%rcx - movq 24(%rsi),%rdx - addReg r8 , rax #do initial key injection - addReg r9 , rbx - movq %rax,Wcopy+ 0+F_O(%rbp) #keep local copy for feedforward - movq %rbx,Wcopy+ 8+F_O(%rbp) - addReg r10, rcx - addReg r11, rdx - movq %rcx,Wcopy+16+F_O(%rbp) - movq %rdx,Wcopy+24+F_O(%rbp) - - movq 32(%rsi),%rax - movq 40(%rsi),%rbx - movq 48(%rsi),%rcx - movq 56(%rsi),%rdx - addReg r12, rax - addReg r13, rbx - addReg r14, rcx - addReg r15, rdx - movq %rax,Wcopy+32+F_O(%rbp) - movq %rbx,Wcopy+40+F_O(%rbp) - movq %rcx,Wcopy+48+F_O(%rbp) - movq %rdx,Wcopy+56+F_O(%rbp) - -.if _SKEIN_DEBUG - .irp _Rn_,8,9,10,11,12,13,14,15 #save values on stack for debug output - movq %r\_Rn_,X_stk+8*(_Rn_-8)(%rsp) - .endr - - Skein_Debug_Block 512 #debug dump - Skein_Debug_Round 512,SKEIN_RND_KEY_INITIAL -.endif - addq $8*WCNT,%rsi #skip the block - movq %rsi,blkPtr+F_O(%rbp) #update block pointer - # - ################# - # now the key schedule is computed. Start the rounds - # -.if SKEIN_ASM_UNROLL & 512 -_UNROLL_CNT = ROUNDS_512/8 -.else -_UNROLL_CNT = SKEIN_UNROLL_512 - .if ((ROUNDS_512/8) % _UNROLL_CNT) - .error "Invalid SKEIN_UNROLL_512" - .endif - xorq %rdi,%rdi #rdi = round counter -Skein_512_round_loop: -.endif -# -_Rbase_ = 0 -.rept _UNROLL_CNT*2 - R_512_FourRounds %(4*_Rbase_+00) -_Rbase_ = _Rbase_+1 -.endr #rept _UNROLL_CNT -# -.if (SKEIN_ASM_UNROLL & 512) == 0 - cmpq $2*(ROUNDS_512/8),%rdi - jb Skein_512_round_loop - movq ctxPtr +F_O(%rbp),%rdi #restore rdi --> context -.endif - # end of rounds - ################# - # feedforward: ctx->X[i] = X[i] ^ w[i], {i=0..7} - .irp _Rn_,8,9,10,11,12,13,14,15 - .if (_Rn_ == 8) - movq $FIRST_MASK64,%rbx - .endif - xorq Wcopy+8*(_Rn_-8)+F_O(%rbp),%r\_Rn_ #feedforward XOR - movq %r\_Rn_,X_VARS+8*(_Rn_-8)(%rdi) #and store result - .if (_Rn_ == 14) - andq TWEAK+ 8(%rdi),%rbx - .endif - .endr - Skein_Debug_Round 512,SKEIN_RND_FEED_FWD - - # go back for more blocks, if needed - decq blkCnt+F_O(%rbp) - jnz Skein_512_block_loop - movq %rbx,TWEAK + 8(%rdi) - - Reset_Stack - ret -Skein_512_Process_Block_End: -# - .if _SKEIN_DEBUG -# call here with rdx = "round number" -Skein_Debug_Round_512: - pushq %rsi #save two regs for BLK_BITS-specific parms - pushq %rdi - .irp _Rn_,8,9,10,11,12,13,14,15 #save X[] state on stack so debug routines can access it - movq %r\_Rn_,X_stk+8*(_Rn_-8)+F_O(%rbp) - .endr - movq ctxPtr+F_O(%rbp),%rsi #ctx_hdr_ptr - movq $512,%rdi #now are set for the call - jmp Skein_Debug_Round_Common - .endif -# -.if _SKEIN_CODE_SIZE -C_label Skein_512_Process_Block_CodeSize - movq $(Skein_512_Process_Block_End-Skein_512_Process_Block),%rax - ret -# -C_label Skein_512_Unroll_Cnt - .if _UNROLL_CNT <> (ROUNDS_512/8) - movq $_UNROLL_CNT,%rax - .else - xorq %rax,%rax - .endif - ret -.endif -# -.endif # _USE_ASM_ & 512 -# -#=================================== Skein1024 ============================================= -.if _USE_ASM_ & 1024 -# -# void Skein1024_Process_Block(Skein_1024_Ctxt_t *ctx,const u08b_t *blkPtr,size_t blkCnt,size_t bitcntAdd)# -# -################# -# use details of permutation to make register assignments -# -o1K_rdi = 0 #offsets in X[] associated with each register -o1K_rsi = 1 -o1K_rbp = 2 -o1K_rax = 3 -o1K_rcx = 4 #rcx is "shared" with X6, since X4/X6 alternate -o1K_rbx = 5 -o1K_rdx = 7 -o1K_r8 = 8 -o1K_r9 = 9 -o1K_r10 = 10 -o1K_r11 = 11 -o1K_r12 = 12 -o1K_r13 = 13 -o1K_r14 = 14 -o1K_r15 = 15 -# -rIdx_offs = tmpStk_1024 -# -.macro r1024_Mix w0,w1,reg0,reg1,_RN0_,_Rn1_,op1 - addReg \reg0 , \reg1 #perform the MIX - RotL64 \reg1 , 1024,%((_RN0_) % 8),_Rn1_ - xorReg \reg1 , \reg0 -.if ((_RN0_) && 3) == 3 #time to do key injection? - .if _SKEIN_DEBUG - movq %\reg0 , xDebug_1024+8*w0(%rsp) #save intermediate values for Debug_Round - movq %\reg1 , xDebug_1024+8*w1(%rsp) # (before inline key injection) - .endif -_II_ = ((_RN0_)/4)+1 #injection count - .if SKEIN_ASM_UNROLL && 1024 #here to do fully unrolled key injection - addq ksKey+ 8*((_II_+w0) % 17)(%rsp),%\reg0 - addq ksKey+ 8*((_II_+w1) % 17)(%rsp),%\reg1 - .if w1 == 13 #tweak injection - addq ksTwk+ 8*((_II_+ 0) % 3)(%rsp),%\reg1 - .elseif w0 == 14 - addq ksTwk+ 8*((_II_+ 1) % 3)(%rsp),%\reg0 - .elseif w1 == 15 - addq $_II_, %\reg1 #(injection counter) - .endif - .else #here to do looping key injection - .if (w0 == 0) - movq %rdi, X_stk+8*w0(%rsp) #if so, store N0 so we can use reg as index - movq rIdx_offs(%rsp),%rdi #get the injection counter index into rdi - .else - addq ksKey+8+8*w0(%rsp,%rdi,8),%\reg0 #even key injection - .endif - .if w1 == 13 #tweak injection - addq ksTwk+8+8* 0(%rsp,%rdi,8),%\reg1 - .elseif w0 == 14 - addq ksTwk+8+8* 1(%rsp,%rdi,8),%\reg0 - .elseif w1 == 15 - addReg \reg1,rdi,,,1 #(injection counter) - .endif - addq ksKey+8+8*w1(%rsp,%rdi,8),%\reg1 #odd key injection - .endif -.endif - # insert the op provided, .if any - op1 -.endm -################# -# MACRO: four rounds for 1024-bit blocks -# -.macro r1024_FourRounds _RR_ #RR = base round number (0 mod 4) - # should be here with X4 set properly, X6 stored on stack -_Rn_ = (_RR_) + 0 - r1024_Mix 0, 1,rdi,rsi,_Rn_,0 - r1024_Mix 2, 3,rbp,rax,_Rn_,1 - r1024_Mix 4, 5,rcx,rbx,_Rn_,2, #save X4 on stack (x4/x6 alternate) - r1024_Mix 8, 9,r8 ,r9 ,_Rn_,4, #load X6 from stack - r1024_Mix 10,11,r10,r11,_Rn_,5 - r1024_Mix 12,13,r12,r13,_Rn_,6 - r1024_Mix 6, 7,rcx,rdx,_Rn_,3 - r1024_Mix 14,15,r14,r15,_Rn_,7 - .if _SKEIN_DEBUG - Skein_Debug_Round 1024,%(_Rn_+1) - .endif -_Rn_ = (_RR_) + 1 - r1024_Mix 0, 9,rdi,r9 ,_Rn_,0 - r1024_Mix 2,13,rbp,r13,_Rn_,1 - r1024_Mix 6,11,rcx,r11,_Rn_,2, #save X6 on stack (x4/x6 alternate) - r1024_Mix 10, 7,r10,rdx,_Rn_,4, #load X4 from stack - r1024_Mix 12, 3,r12,rax,_Rn_,5 - r1024_Mix 14, 5,r14,rbx,_Rn_,6 - r1024_Mix 4,15,rcx,r15,_Rn_,3 - r1024_Mix 8, 1,r8 ,rsi,_Rn_,7 - .if _SKEIN_DEBUG - Skein_Debug_Round 1024,%(_Rn_+1) - .endif -_Rn_ = (_RR_) + 2 - r1024_Mix 0, 7,rdi,rdx,_Rn_,0 - r1024_Mix 2, 5,rbp,rbx,_Rn_,1 - r1024_Mix 4, 3,rcx,rax,_Rn_,2, #save X4 on stack (x4/x6 alternate) - r1024_Mix 12,15,r12,r15,_Rn_,4, #load X6 from stack - r1024_Mix 14,13,r14,r13,_Rn_,5 - r1024_Mix 8,11,r8 ,r11,_Rn_,6 - r1024_Mix 6, 1,rcx,rsi,_Rn_,3 - r1024_Mix 10, 9,r10,r9 ,_Rn_,7 - .if _SKEIN_DEBUG - Skein_Debug_Round 1024,%(_Rn_+1) - .endif -_Rn_ = (_RR_) + 3 - r1024_Mix 0,15,rdi,r15,_Rn_,0 - r1024_Mix 2,11,rbp,r11,_Rn_,1 - r1024_Mix 6,13,rcx,r13,_Rn_,2, #save X6 on stack (x4/x6 alternate) - r1024_Mix 14, 1,r14,rsi,_Rn_,4, #load X4 from stack - r1024_Mix 8, 5,r8 ,rbx,_Rn_,5 - r1024_Mix 10, 3,r10,rax,_Rn_,6 - r1024_Mix 4, 9,rcx,r9 ,_Rn_,3 - r1024_Mix 12, 7,r12,rdx,_Rn_,7 - .if _SKEIN_DEBUG - Skein_Debug_Round 1024,%(_Rn_+1) - .endif - - .if (SKEIN_ASM_UNROLL && 1024) == 0 #here with rdi == rIdx, X0 on stack - #"rotate" the key schedule on the stack -i8 = o1K_r8 -i0 = o1K_rdi - movq %r8 , X_stk+8*i8(%rsp) #free up a register (save it on the stack) - movq ksKey+8* 0(%rsp,%rdi,8),%r8 #get key word - movq %r8 , ksKey+8*17(%rsp,%rdi,8) #rotate key (must do key first or tweak clobbers it!) - movq ksTwk+8* 0(%rsp,%rdi,8),%r8 #get tweak word - movq %r8 , ksTwk+8* 3(%rsp,%rdi,8) #rotate tweak (onto the stack) - movq X_stk+8*i8(%rsp) ,%r8 #get the reg back - incq %rdi #bump the index - movq %rdi, rIdx_offs (%rsp) #save rdi again - movq ksKey+8*i0(%rsp,%rdi,8),%rdi #get the key schedule word for X0 back - addq X_stk+8*i0(%rsp) ,%rdi #perform the X0 key injection - .endif - #show the result of the key injection - Skein_Debug_Round 1024,SKEIN_RND_KEY_INJECT -.endm #r1024_FourRounds -# -################ -# code -# -C_label Skein1024_Process_Block -# - Setup_Stack 1024,ROUNDS_1024/8,WCNT - movq TWEAK+ 8(%rdi),%r9 - jmp Skein1024_block_loop - # main hash loop for Skein1024 - .p2align 4 -Skein1024_block_loop: - # general register usage: - # RSP = stack pointer - # RAX..RDX,RSI,RDI = X1, X3..X7 (state words) - # R8 ..R15 = X8..X15 (state words) - # RBP = temp (used for X0 and X2) - # - .if (SKEIN_ASM_UNROLL & 1024) == 0 - xorq %rax,%rax #init loop index on the stack - movq %rax,rIdx_offs(%rsp) - .endif - movq TWEAK+ 0(%rdi),%r8 - addq bitAdd+ F_O(%rbp),%r8 #computed updated tweak value T0 - movq %r9 ,%r10 - xorq %r8 ,%r10 #%rax/%rbx/%rcx = tweak schedule - movq %r8 ,TWEAK+ 0(%rdi) #save updated tweak value ctx->h.T[0] - movq %r8 ,ksTwk+ 0+F_O(%rbp) - movq %r9 ,ksTwk+ 8+F_O(%rbp) #keep values in %r8 ,%r9 for initial tweak injection below - movq %r10,ksTwk+16+F_O(%rbp) - .if _SKEIN_DEBUG - movq %r9 ,TWEAK+ 8(%rdi) #save updated tweak value ctx->h.T[1] for Skein_Debug_Block - .endif - movq blkPtr +F_O(%rbp),%rsi # rsi --> input block - movq $KW_PARITY ,%rax #overall key schedule parity - - # the logic here assumes the set {rdi,rsi,rbp,rax} = X[0,1,2,3] - .irp _rN_,0,1,2,3,4,6 #process the "initial" words, using r14/r15 as temps - movq X_VARS+8*_rN_(%rdi),%r14 #get state word - movq 8*_rN_(%rsi),%r15 #get msg word - xorq %r14,%rax #update key schedule overall parity - movq %r14,ksKey +8*_rN_+F_O(%rbp) #save key schedule word on stack - movq %r15,Wcopy +8*_rN_+F_O(%rbp) #save local msg Wcopy - addq %r15,%r14 #do the initial key injection - movq %r14,X_stk +8*_rN_ (%rsp) #save initial state var on stack - .endr - # now process the rest, using the "real" registers - # (MUST do it in reverse order to inject tweaks r8/r9 first) - .irp _rr_,r15,r14,r13,r12,r11,r10,r9,r8,rdx,rbx -_oo_ = o1K_\_rr_ #offset assocated with the register - movq X_VARS+8*_oo_(%rdi),%\_rr_ #get key schedule word from context - movq 8*_oo_(%rsi),%rcx #get next input msg word - movq %\_rr_, ksKey +8*_oo_(%rsp) #save key schedule on stack - xorq %\_rr_, %rax #accumulate key schedule parity - movq %rcx,Wcopy+8*_oo_+F_O(%rbp) #save copy of msg word for feedforward - addq %rcx,%\_rr_ #do the initial key injection - .if _oo_ == 13 #do the initial tweak injection - addReg _rr_,r8 # (only in words 13/14) - .elseif _oo_ == 14 - addReg _rr_,r9 - .endif - .endr - movq %rax,ksKey+8*WCNT+F_O(%rbp) #save key schedule parity -.if _SKEIN_DEBUG - Skein_Debug_Block 1024 #initial debug dump -.endif - addq $8*WCNT,%rsi #bump the msg ptr - movq %rsi,blkPtr+F_O(%rbp) #save bumped msg ptr - # re-load words 0..4 from stack, enter the main loop - .irp _rr_,rdi,rsi,rbp,rax,rcx #(no need to re-load x6, already on stack) - movq X_stk+8*o1K_\_rr_(%rsp),%\_rr_ #re-load state and get ready to go! - .endr -.if _SKEIN_DEBUG - Skein_Debug_Round 1024,SKEIN_RND_KEY_INITIAL #show state after initial key injection -.endif - # - ################# - # now the key schedule is computed. Start the rounds - # -.if SKEIN_ASM_UNROLL & 1024 -_UNROLL_CNT = ROUNDS_1024/8 -.else -_UNROLL_CNT = SKEIN_UNROLL_1024 - .if ((ROUNDS_1024/8) % _UNROLL_CNT) - .error "Invalid SKEIN_UNROLL_1024" - .endif -Skein1024_round_loop: -.endif -# -_Rbase_ = 0 -.rept _UNROLL_CNT*2 #implement the rounds, 4 at a time - r1024_FourRounds %(4*_Rbase_+00) -_Rbase_ = _Rbase_+1 -.endr #rept _UNROLL_CNT -# -.if (SKEIN_ASM_UNROLL & 1024) == 0 - cmpq $2*(ROUNDS_1024/8),tmpStk_1024(%rsp) #see .if we are done - jb Skein1024_round_loop -.endif - # end of rounds - ################# - # - # feedforward: ctx->X[i] = X[i] ^ w[i], {i=0..15} - movq %rdx,X_stk+8*o1K_rdx(%rsp) #we need a register. x6 already on stack - movq ctxPtr(%rsp),%rdx - - .irp _rr_,rdi,rsi,rbp,rax,rcx,rbx,r8,r9,r10,r11,r12,r13,r14,r15 #do all but x6,x7 -_oo_ = o1K_\_rr_ - xorq Wcopy +8*_oo_(%rsp),%\_rr_ #feedforward XOR - movq %\_rr_,X_VARS+8*_oo_(%rdx) #save result into context - .if (_oo_ == 9) - movq $FIRST_MASK64 ,%r9 - .endif - .if (_oo_ == 14) - andq TWEAK+ 8(%rdx),%r9 - .endif - .endr - # - movq X_stk +8*6(%rsp),%rax #now process x6,x7 (skipped in .irp above) - movq X_stk +8*7(%rsp),%rbx - xorq Wcopy +8*6(%rsp),%rax - xorq Wcopy +8*7(%rsp),%rbx - movq %rax,X_VARS+8*6(%rdx) - decq blkCnt(%rsp) #set zero flag iff done - movq %rbx,X_VARS+8*7(%rdx) - - Skein_Debug_Round 1024,SKEIN_RND_FEED_FWD,, - # go back for more blocks, if needed - movq ctxPtr(%rsp),%rdi #don't muck with the flags here! - lea FRAME_OFFS(%rsp),%rbp - jnz Skein1024_block_loop - movq %r9 ,TWEAK+ 8(%rdx) - Reset_Stack - ret -# -Skein1024_Process_Block_End: -# -.if _SKEIN_DEBUG -Skein_Debug_Round_1024: - # call here with rdx = "round number", -_SP_OFFS_ = 8*2 #stack "offset" here: rdx, return addr - # - #save rest of X[] state on stack so debug routines can access it - .irp _rr_,rsi,rbp,rax,rbx,r8,r9,r10,r11,r12,r13,r14,r15 - movq %\_rr_,X_stk+8*o1K_\_rr_+_SP_OFFS_(%rsp) - .endr - # Figure out what to do with x0 (rdi). When rdx == 0 mod 4, it's already on stack - cmpq $SKEIN_RND_SPECIAL,%rdx #special rounds always save - jae save_x0 - testq $3,%rdx #otherwise only if rdx != 0 mod 4 - jz save_x0_not -save_x0: - movq %rdi,X_stk+8*o1K_rdi+_SP_OFFS_(%rsp) -save_x0_not: - #figure out the x4/x6 swapping state and save the correct one! - cmpq $SKEIN_RND_SPECIAL,%rdx #special rounds always do x4 - jae save_x4 - testq $1,%rdx #and even ones have r4 as well - jz save_x4 - movq %rcx,X_stk+8*6+_SP_OFFS_(%rsp) - jmp debug_1024_go -save_x4: - movq %rcx,X_stk+8*4+_SP_OFFS_(%rsp) -debug_1024_go: - #now all is saved in Xstk[] except for rdx - push %rsi #save two regs for BLK_BITS-specific parms - push %rdi -_SP_OFFS_ = _SP_OFFS_ + 16 #adjust stack offset accordingly (now 32) - - movq _SP_OFFS_-8(%rsp),%rsi #get back original %rdx (pushed on stack in macro call) - movq %rsi,X_stk+8*o1K_rdx+_SP_OFFS_(%rsp) #and save it in its rightful place in X_stk[] - - movq ctxPtr+_SP_OFFS_(%rsp),%rsi #rsi = ctx_hdr_ptr - movq $1024,%rdi #rdi = block size - jmp Skein_Debug_Round_Common -.endif -# -.if _SKEIN_CODE_SIZE -C_label Skein1024_Process_Block_CodeSize - movq $(Skein1024_Process_Block_End-Skein1024_Process_Block),%rax - ret -# -C_label Skein1024_Unroll_Cnt - .if _UNROLL_CNT <> (ROUNDS_1024/8) - movq $_UNROLL_CNT,%rax - .else - xorq %rax,%rax - .endif - ret -.endif -# -.endif # _USE_ASM_ and 1024 -# -.if _SKEIN_DEBUG -#---------------------------------------------------------------- -#local debug routine to set up for calls to: -# void Skein_Show_Round(uint_t bits,const Skein_Ctxt_Hdr_t *h,int r,const u64b_t *X) -# [ rdi rsi rdx rcx] -# -# here with %rdx = round number -# %rsi = ctx_hdr_ptr -# %rdi = block size (256/512/1024) -# on stack: saved rdi, saved rsi, retAddr, saved rdx -# -Skein_Debug_Round_Common: -_SP_OFFS_ = 32 #account for four words on stack already - .irp _rr_,rax,rbx,rcx,rbp,r8,r9,r10,r11,r12,r13,r14,r15 #save the rest of the regs - pushq %\_rr_ -_SP_OFFS_ = _SP_OFFS_+8 - .endr - .if (_SP_OFFS_ % 16) # make sure stack is still 16-byte aligned here - .error "Debug_Round_Common: stack alignment" - .endif - # compute %rcx = ptr to the X[] array on the stack (final parameter to call) - leaq X_stk+_SP_OFFS_(%rsp),%rcx #adjust for reg pushes, return address - cmpq $SKEIN_RND_FEED_FWD,%rdx #special handling for feedforward "round"? - jnz _got_rcxA - leaq X_VARS(%rsi),%rcx -_got_rcxA: - .if _USE_ASM_ & 1024 - # special handling for 1024-bit case - # (for rounds right before with key injection: - # use xDebug_1024[] instead of X_stk[]) - cmpq $SKEIN_RND_SPECIAL,%rdx - jae _got_rcxB #must be a normal round - orq %rdx,%rdx - jz _got_rcxB #just before key injection - test $3,%rdx - jne _got_rcxB - cmp $1024,%rdi #only 1024-bit(s) for now - jne _got_rcxB - leaq xDebug_1024+_SP_OFFS_(%rsp),%rcx -_got_rcxB: - .endif - call Skein_Show_Round #call external debug handler - - .irp _rr_,r15,r14,r13,r12,r11,r10,r9,r8,rbp,rcx,rbx,rax #restore regs - popq %\_rr_ -_SP_OFFS_ = _SP_OFFS_-8 - .endr - .if _SP_OFFS_ - 32 - .error "Debug_Round_Common: push/pop misalignment!" - .endif - popq %rdi - popq %rsi - ret -.endif -#---------------------------------------------------------------- - .section .note.GNU-stack,"",@progbits - - .end Property changes on: projects/nfs-over-tls/sys/crypto/skein/amd64/skein_block_asm.s ___________________________________________________________________ Deleted: svn:eol-style ## -1 +0,0 ## -native \ No newline at end of property Deleted: svn:keywords ## -1 +0,0 ## -FreeBSD=%H \ No newline at end of property Deleted: svn:mime-type ## -1 +0,0 ## -text/plain \ No newline at end of property Index: projects/nfs-over-tls/sys/crypto/skein/amd64/skein_block_asm.S =================================================================== --- projects/nfs-over-tls/sys/crypto/skein/amd64/skein_block_asm.S (nonexistent) +++ projects/nfs-over-tls/sys/crypto/skein/amd64/skein_block_asm.S (revision 362499) @@ -0,0 +1,1331 @@ +# +#---------------------------------------------------------------- +# 64-bit x86 assembler code (gnu as) for Skein block functions +# +# Author: Doug Whiting, Hifn/Exar +# +# This code is released to the public domain. +#---------------------------------------------------------------- +# $FreeBSD$ +# + .text + .altmacro + .psize 0,128 #list file has no page boundaries +# +_MASK_ALL_ = (256+512+1024) #all three algorithm bits +_MAX_FRAME_ = 240 +# +################# +.ifndef SKEIN_USE_ASM +_USE_ASM_ = _MASK_ALL_ +.else +_USE_ASM_ = SKEIN_USE_ASM +.endif +################# +.ifndef SKEIN_LOOP #configure loop unrolling +_SKEIN_LOOP = 2 #default is fully unrolled for 256/512, twice for 1024 +.else +_SKEIN_LOOP = SKEIN_LOOP + .irp _NN_,%_SKEIN_LOOP #only display loop unrolling if default changed on command line +#.print "+++ SKEIN_LOOP = \_NN_" + .endr +.endif +# the unroll counts (0 --> fully unrolled) +SKEIN_UNROLL_256 = (_SKEIN_LOOP / 100) % 10 +SKEIN_UNROLL_512 = (_SKEIN_LOOP / 10) % 10 +SKEIN_UNROLL_1024 = (_SKEIN_LOOP ) % 10 +# +SKEIN_ASM_UNROLL = 0 + .irp _NN_,256,512,1024 + .if (SKEIN_UNROLL_\_NN_) == 0 +SKEIN_ASM_UNROLL = SKEIN_ASM_UNROLL + \_NN_ + .endif + .endr +################# +# +.ifndef SKEIN_ROUNDS +ROUNDS_256 = 72 +ROUNDS_512 = 72 +ROUNDS_1024 = 80 +.else +ROUNDS_256 = 8*((((SKEIN_ROUNDS / 100) + 5) % 10) + 5) +ROUNDS_512 = 8*((((SKEIN_ROUNDS / 10) + 5) % 10) + 5) +ROUNDS_1024 = 8*((((SKEIN_ROUNDS ) + 5) % 10) + 5) +# only display rounds if default size is changed on command line +.irp _NN_,256,512,1024 + .if _USE_ASM_ && \_NN_ + .irp _RR_,%(ROUNDS_\_NN_) + .if _NN_ < 1024 +.print "+++ SKEIN_ROUNDS_\_NN_ = \_RR_" + .else +.print "+++ SKEIN_ROUNDS_\_NN_ = \_RR_" + .endif + .endr + .endif +.endr +.endif +################# +# +.ifdef SKEIN_CODE_SIZE +_SKEIN_CODE_SIZE = (1) +.else +.ifdef SKEIN_PERF #use code size if SKEIN_PERF is defined +_SKEIN_CODE_SIZE = (1) +.else +_SKEIN_CODE_SIZE = (0) +.endif +.endif +# +################# +# +.ifndef SKEIN_DEBUG +_SKEIN_DEBUG = 0 +.else +_SKEIN_DEBUG = 1 +.endif +################# +# +# define offsets of fields in hash context structure +# +HASH_BITS = 0 #bits of hash output +BCNT = 8 + HASH_BITS #number of bytes in BUFFER[] +TWEAK = 8 + BCNT #tweak values[0..1] +X_VARS = 16 + TWEAK #chaining vars +# +#(Note: buffer[] in context structure is NOT needed here :-) +# +KW_PARITY = 0x1BD11BDAA9FC1A22 #overall parity of key schedule words +FIRST_MASK = ~ (1 << 6) +FIRST_MASK64= ~ (1 << 62) +# +# rotation constants for Skein +# +RC_256_0_0 = 14 +RC_256_0_1 = 16 + +RC_256_1_0 = 52 +RC_256_1_1 = 57 + +RC_256_2_0 = 23 +RC_256_2_1 = 40 + +RC_256_3_0 = 5 +RC_256_3_1 = 37 + +RC_256_4_0 = 25 +RC_256_4_1 = 33 + +RC_256_5_0 = 46 +RC_256_5_1 = 12 + +RC_256_6_0 = 58 +RC_256_6_1 = 22 + +RC_256_7_0 = 32 +RC_256_7_1 = 32 + +RC_512_0_0 = 46 +RC_512_0_1 = 36 +RC_512_0_2 = 19 +RC_512_0_3 = 37 + +RC_512_1_0 = 33 +RC_512_1_1 = 27 +RC_512_1_2 = 14 +RC_512_1_3 = 42 + +RC_512_2_0 = 17 +RC_512_2_1 = 49 +RC_512_2_2 = 36 +RC_512_2_3 = 39 + +RC_512_3_0 = 44 +RC_512_3_1 = 9 +RC_512_3_2 = 54 +RC_512_3_3 = 56 + +RC_512_4_0 = 39 +RC_512_4_1 = 30 +RC_512_4_2 = 34 +RC_512_4_3 = 24 + +RC_512_5_0 = 13 +RC_512_5_1 = 50 +RC_512_5_2 = 10 +RC_512_5_3 = 17 + +RC_512_6_0 = 25 +RC_512_6_1 = 29 +RC_512_6_2 = 39 +RC_512_6_3 = 43 + +RC_512_7_0 = 8 +RC_512_7_1 = 35 +RC_512_7_2 = 56 +RC_512_7_3 = 22 + +RC_1024_0_0 = 24 +RC_1024_0_1 = 13 +RC_1024_0_2 = 8 +RC_1024_0_3 = 47 +RC_1024_0_4 = 8 +RC_1024_0_5 = 17 +RC_1024_0_6 = 22 +RC_1024_0_7 = 37 + +RC_1024_1_0 = 38 +RC_1024_1_1 = 19 +RC_1024_1_2 = 10 +RC_1024_1_3 = 55 +RC_1024_1_4 = 49 +RC_1024_1_5 = 18 +RC_1024_1_6 = 23 +RC_1024_1_7 = 52 + +RC_1024_2_0 = 33 +RC_1024_2_1 = 4 +RC_1024_2_2 = 51 +RC_1024_2_3 = 13 +RC_1024_2_4 = 34 +RC_1024_2_5 = 41 +RC_1024_2_6 = 59 +RC_1024_2_7 = 17 + +RC_1024_3_0 = 5 +RC_1024_3_1 = 20 +RC_1024_3_2 = 48 +RC_1024_3_3 = 41 +RC_1024_3_4 = 47 +RC_1024_3_5 = 28 +RC_1024_3_6 = 16 +RC_1024_3_7 = 25 + +RC_1024_4_0 = 41 +RC_1024_4_1 = 9 +RC_1024_4_2 = 37 +RC_1024_4_3 = 31 +RC_1024_4_4 = 12 +RC_1024_4_5 = 47 +RC_1024_4_6 = 44 +RC_1024_4_7 = 30 + +RC_1024_5_0 = 16 +RC_1024_5_1 = 34 +RC_1024_5_2 = 56 +RC_1024_5_3 = 51 +RC_1024_5_4 = 4 +RC_1024_5_5 = 53 +RC_1024_5_6 = 42 +RC_1024_5_7 = 41 + +RC_1024_6_0 = 31 +RC_1024_6_1 = 44 +RC_1024_6_2 = 47 +RC_1024_6_3 = 46 +RC_1024_6_4 = 19 +RC_1024_6_5 = 42 +RC_1024_6_6 = 44 +RC_1024_6_7 = 25 + +RC_1024_7_0 = 9 +RC_1024_7_1 = 48 +RC_1024_7_2 = 35 +RC_1024_7_3 = 52 +RC_1024_7_4 = 23 +RC_1024_7_5 = 31 +RC_1024_7_6 = 37 +RC_1024_7_7 = 20 +# +# Input: reg +# Output: <<< RC_BlkSize_roundNum_mixNum, BlkSize=256/512/1024 +# +.macro RotL64 reg,BLK_SIZE,ROUND_NUM,MIX_NUM +_RCNT_ = RC_\BLK_SIZE&_\ROUND_NUM&_\MIX_NUM + .if _RCNT_ #is there anything to do? + rolq $_RCNT_,%\reg + .endif +.endm +# +#---------------------------------------------------------------- +# +# MACROS: define local vars and configure stack +# +#---------------------------------------------------------------- +# declare allocated space on the stack +.macro StackVar localName,localSize +\localName = _STK_OFFS_ +_STK_OFFS_ = _STK_OFFS_+(\localSize) +.endm #StackVar +# +#---------------------------------------------------------------- +# +# MACRO: Configure stack frame, allocate local vars +# +.macro Setup_Stack BLK_BITS,KS_CNT,debugCnt + WCNT = (\BLK_BITS)/64 +# +_PushCnt_ = 0 #save nonvolatile regs on stack + .irp _reg_,rbp,rbx,r12,r13,r14,r15 + pushq %\_reg_ +_PushCnt_ = _PushCnt_ + 1 #track count to keep alignment + .endr +# +_STK_OFFS_ = 0 #starting offset from rsp + #---- local variables #<-- rsp + StackVar X_stk ,8*(WCNT) #local context vars + StackVar ksTwk ,8*3 #key schedule: tweak words + StackVar ksKey ,8*(WCNT)+8 #key schedule: key words + .if (SKEIN_ASM_UNROLL && (\BLK_BITS)) == 0 + StackVar ksRot ,16*(\KS_CNT) #leave space for "rotation" to happen + .endif + StackVar Wcopy ,8*(WCNT) #copy of input block + .if _SKEIN_DEBUG + .if \debugCnt + 0 #temp location for debug X[] info + StackVar xDebug_\BLK_BITS ,8*(\debugCnt) + .endif + .endif + .if ((8*_PushCnt_ + _STK_OFFS_) % 8) == 0 + StackVar align16,8 #keep 16-byte aligned (adjust for retAddr?) +tmpStk_\BLK_BITS = align16 #use this + .endif + #---- saved caller parameters (from regs rdi, rsi, rdx, rcx) + StackVar ctxPtr ,8 #context ptr + StackVar blkPtr ,8 #pointer to block data + StackVar blkCnt ,8 #number of full blocks to process + StackVar bitAdd ,8 #bit count to add to tweak +LOCAL_SIZE = _STK_OFFS_ #size of "local" vars + #---- + StackVar savRegs,8*_PushCnt_ #saved registers + StackVar retAddr,8 #return address + #---- caller's stack frame (aligned mod 16) +# +# set up the stack frame pointer (rbp) +# +FRAME_OFFS = ksTwk + 128 #allow short (negative) offset to ksTwk, kwKey + .if FRAME_OFFS > _STK_OFFS_ #keep rbp in the "locals" range +FRAME_OFFS = _STK_OFFS_ + .endif +F_O = -FRAME_OFFS +# + #put some useful defines in the .lst file (for grep) +__STK_LCL_SIZE_\BLK_BITS = LOCAL_SIZE +__STK_TOT_SIZE_\BLK_BITS = _STK_OFFS_ +__STK_FRM_OFFS_\BLK_BITS = FRAME_OFFS +# +# Notes on stack frame setup: +# * the most frequently used variable is X_stk[], based at [rsp+0] +# * the next most used is the key schedule arrays, ksKey and ksTwk +# so rbp is "centered" there, allowing short offsets to the key +# schedule even in 1024-bit Skein case +# * the Wcopy variables are infrequently accessed, but they have long +# offsets from both rsp and rbp only in the 1024-bit case. +# * all other local vars and calling parameters can be accessed +# with short offsets, except in the 1024-bit case +# + subq $LOCAL_SIZE,%rsp #make room for the locals + leaq FRAME_OFFS(%rsp),%rbp #maximize use of short offsets + movq %rdi, ctxPtr+F_O(%rbp) #save caller's parameters on the stack + movq %rsi, blkPtr+F_O(%rbp) + movq %rdx, blkCnt+F_O(%rbp) + movq %rcx, bitAdd+F_O(%rbp) +# +.endm #Setup_Stack +# +#---------------------------------------------------------------- +# +.macro Reset_Stack + addq $LOCAL_SIZE,%rsp #get rid of locals (wipe??) + .irp _reg_,r15,r14,r13,r12,rbx,rbp + popq %\_reg_ #restore caller's regs +_PushCnt_ = _PushCnt_ - 1 + .endr + .if _PushCnt_ + .error "Mismatched push/pops?" + .endif +.endm # Reset_Stack +# +#---------------------------------------------------------------- +# macros to help debug internals +# +.if _SKEIN_DEBUG + .extern Skein_Show_Block #calls to C routines + .extern Skein_Show_Round +# +SKEIN_RND_SPECIAL = 1000 +SKEIN_RND_KEY_INITIAL = SKEIN_RND_SPECIAL+0 +SKEIN_RND_KEY_INJECT = SKEIN_RND_SPECIAL+1 +SKEIN_RND_FEED_FWD = SKEIN_RND_SPECIAL+2 +# +.macro Skein_Debug_Block BLK_BITS +# +#void Skein_Show_Block(uint_t bits,const Skein_Ctxt_Hdr_t *h,const u64b_t *X, +# const u08b_t *blkPtr, const u64b_t *wPtr, +# const u64b_t *ksPtr,const u64b_t *tsPtr) +# +_NN_ = 0 + .irp _reg_,rax,rcx,rdx,rsi,rdi,r8,r9,r10,r11 + pushq %\_reg_ #save all volatile regs on tack before the call +_NN_ = _NN_ + 1 + .endr + # get and push call parameters + movq $\BLK_BITS ,%rdi #bits + movq ctxPtr+F_O(%rbp),%rsi #h (pointer) + leaq X_VARS (%rsi),%rdx #X (pointer) + movq blkPtr+F_O(%rbp),%rcx #blkPtr + leaq Wcopy +F_O(%rbp),%r8 #wPtr + leaq ksKey +F_O(%rbp),%r9 #key pointer + leaq ksTwk +F_O(%rbp),%rax #tweak pointer + pushq %rax # (pass on the stack) + call Skein_Show_Block #call external debug handler + addq $8*1,%rsp #discard parameters on stack + .if (_NN_ % 2 ) == 0 #check stack alignment + .error "Stack misalignment problem in Skein_Debug_Block_\_BLK_BITS" + .endif + .irp _reg_,r11,r10,r9,r8,rdi,rsi,rdx,rcx,rax + popq %\_reg_ #restore regs +_NN_ = _NN_ - 1 + .endr + .if _NN_ + .error "Push/pop mismatch problem in Skein_Debug_Block_\_BLK_BITS" + .endif +.endm # Skein_Debug_Block +# +# the macro to "call" to debug a round +# +.macro Skein_Debug_Round BLK_BITS,R,RDI_OFFS,afterOp + # call the appropriate (local) debug "function" + pushq %rdx #save rdx, so we can use it for round "number" + .if (SKEIN_ASM_UNROLL && \BLK_BITS) || (\R >= SKEIN_RND_SPECIAL) + movq $\R,%rdx + .else #compute round number using edi +_rOffs_ = \RDI_OFFS + 0 + .if \BLK_BITS == 1024 + movq rIdx_offs+8(%rsp),%rdx #get rIdx off the stack (adjust for pushq rdx above) + leaq 1+(((\R)-1) && 3)+_rOffs_(,%rdx,4),%rdx + .else + leaq 1+(((\R)-1) && 3)+_rOffs_(,%rdi,4),%rdx + .endif + .endif + call Skein_Debug_Round_\BLK_BITS + popq %rdx #restore origianl rdx value +# + afterOp +.endm # Skein_Debug_Round +.else #------- _SKEIN_DEBUG (dummy macros if debug not enabled) +.macro Skein_Debug_Block BLK_BITS +.endm +# +.macro Skein_Debug_Round BLK_BITS,R,RDI_OFFS,afterOp +.endm +# +.endif # _SKEIN_DEBUG +# +#---------------------------------------------------------------- +# +.macro addReg dstReg,srcReg_A,srcReg_B,useAddOp,immOffs + .if \immOffs + 0 + leaq \immOffs(%\srcReg_A\srcReg_B,%\dstReg),%\dstReg + .elseif ((\useAddOp + 0) == 0) + .ifndef ASM_NO_LEA #lea seems to be faster on Core 2 Duo CPUs! + leaq (%\srcReg_A\srcReg_B,%\dstReg),%\dstReg + .else + addq %\srcReg_A\srcReg_B,%\dstReg + .endif + .else + addq %\srcReg_A\srcReg_B,%\dstReg + .endif +.endm + +# keep Intel-style ordering here, to match addReg +.macro xorReg dstReg,srcReg_A,srcReg_B + xorq %\srcReg_A\srcReg_B,%\dstReg +.endm +# +#---------------------------------------------------------------- +# +.macro C_label lName + \lName: #use both "genders" to work across linkage conventions +_\lName: + .global \lName + .global _\lName +.endm +# +#=================================== Skein_256 ============================================= +# +.if _USE_ASM_ & 256 +# +# void Skein_256_Process_Block(Skein_256_Ctxt_t *ctx,const u08b_t *blkPtr,size_t blkCnt,size_t bitcntAdd)# +# +################# +# +# code +# +C_label Skein_256_Process_Block + Setup_Stack 256,((ROUNDS_256/8)+1) + movq TWEAK+8(%rdi),%r14 + jmp Skein_256_block_loop + .p2align 4 + # main hash loop for Skein_256 +Skein_256_block_loop: + # + # general register usage: + # RAX..RDX = X0..X3 + # R08..R12 = ks[0..4] + # R13..R15 = ts[0..2] + # RSP, RBP = stack/frame pointers + # RDI = round counter or context pointer + # RSI = temp + # + movq TWEAK+0(%rdi) ,%r13 + addq bitAdd+F_O(%rbp) ,%r13 #computed updated tweak value T0 + movq %r14 ,%r15 + xorq %r13 ,%r15 #now %r13.%r15 is set as the tweak + + movq $KW_PARITY ,%r12 + movq X_VARS+ 0(%rdi),%r8 + movq X_VARS+ 8(%rdi),%r9 + movq X_VARS+16(%rdi),%r10 + movq X_VARS+24(%rdi),%r11 + movq %r13,TWEAK+0(%rdi) #save updated tweak value ctx->h.T[0] + xorq %r8 ,%r12 #start accumulating overall parity + + movq blkPtr +F_O(%rbp) ,%rsi #esi --> input block + xorq %r9 ,%r12 + movq 0(%rsi) ,%rax #get X[0..3] + xorq %r10 ,%r12 + movq 8(%rsi) ,%rbx + xorq %r11 ,%r12 + movq 16(%rsi) ,%rcx + movq 24(%rsi) ,%rdx + + movq %rax,Wcopy+ 0+F_O(%rbp) #save copy of input block + movq %rbx,Wcopy+ 8+F_O(%rbp) + movq %rcx,Wcopy+16+F_O(%rbp) + movq %rdx,Wcopy+24+F_O(%rbp) + + addq %r8 ,%rax #initial key injection + addq %r9 ,%rbx + addq %r10,%rcx + addq %r11,%rdx + addq %r13,%rbx + addq %r14,%rcx + +.if _SKEIN_DEBUG + movq %r14,TWEAK+ 8(%rdi) #save updated tweak T[1] (start bit cleared?) + movq %r8 ,ksKey+ 0+F_O(%rbp) #save key schedule on stack for Skein_Debug_Block + movq %r9 ,ksKey+ 8+F_O(%rbp) + movq %r10,ksKey+16+F_O(%rbp) + movq %r11,ksKey+24+F_O(%rbp) + movq %r12,ksKey+32+F_O(%rbp) + + movq %r13,ksTwk+ 0+F_O(%rbp) + movq %r14,ksTwk+ 8+F_O(%rbp) + movq %r15,ksTwk+16+F_O(%rbp) + + movq %rax,X_stk + 0(%rsp) #save X[] on stack for Skein_Debug_Block + movq %rbx,X_stk + 8(%rsp) + movq %rcx,X_stk +16(%rsp) + movq %rdx,X_stk +24(%rsp) + + Skein_Debug_Block 256 #debug dump + Skein_Debug_Round 256,SKEIN_RND_KEY_INITIAL +.endif +# +.if ((SKEIN_ASM_UNROLL & 256) == 0) + movq %r8 ,ksKey+40+F_O(%rbp) #save key schedule on stack for looping code + movq %r9 ,ksKey+ 8+F_O(%rbp) + movq %r10,ksKey+16+F_O(%rbp) + movq %r11,ksKey+24+F_O(%rbp) + movq %r12,ksKey+32+F_O(%rbp) + + movq %r13,ksTwk+24+F_O(%rbp) + movq %r14,ksTwk+ 8+F_O(%rbp) + movq %r15,ksTwk+16+F_O(%rbp) +.endif + addq $WCNT*8,%rsi #skip the block + movq %rsi,blkPtr +F_O(%rbp) #update block pointer + # + # now the key schedule is computed. Start the rounds + # +.if SKEIN_ASM_UNROLL & 256 +_UNROLL_CNT = ROUNDS_256/8 +.else +_UNROLL_CNT = SKEIN_UNROLL_256 + .if ((ROUNDS_256/8) % _UNROLL_CNT) + .error "Invalid SKEIN_UNROLL_256" + .endif + xorq %rdi,%rdi #rdi = iteration count +Skein_256_round_loop: +.endif +_Rbase_ = 0 +.rept _UNROLL_CNT*2 + # all X and ks vars in regs # (ops to "rotate" ks vars, via mem, if not unrolled) + # round 4*_RBase_ + 0 + addReg rax, rbx + RotL64 rbx, 256,%((4*_Rbase_+0) % 8),0 + addReg rcx, rdx + .if (SKEIN_ASM_UNROLL & 256) == 0 + movq ksKey+8*1+F_O(%rbp,%rdi,8),%r8 + .endif + xorReg rbx, rax + RotL64 rdx, 256,%((4*_Rbase_+0) % 8),1 + xorReg rdx, rcx + .if SKEIN_ASM_UNROLL & 256 + .irp _r0_,%( 8+(_Rbase_+3) % 5) + .irp _r1_,%(13+(_Rbase_+2) % 3) + leaq (%r\_r0_,%r\_r1_),%rdi #precompute key injection value for %rcx + .endr + .endr + .endif + .if (SKEIN_ASM_UNROLL & 256) == 0 + movq ksTwk+8*1+F_O(%rbp,%rdi,8),%r13 + .endif + Skein_Debug_Round 256,%(4*_Rbase_+1) + + # round 4*_Rbase_ + 1 + addReg rax, rdx + RotL64 rdx, 256,%((4*_Rbase_+1) % 8),0 + xorReg rdx, rax + .if (SKEIN_ASM_UNROLL & 256) == 0 + movq ksKey+8*2+F_O(%rbp,%rdi,8),%r9 + .endif + addReg rcx, rbx + RotL64 rbx, 256,%((4*_Rbase_+1) % 8),1 + xorReg rbx, rcx + .if (SKEIN_ASM_UNROLL & 256) == 0 + movq ksKey+8*4+F_O(%rbp,%rdi,8),%r11 + .endif + Skein_Debug_Round 256,%(4*_Rbase_+2) + .if SKEIN_ASM_UNROLL & 256 + .irp _r0_,%( 8+(_Rbase_+2) % 5) + .irp _r1_,%(13+(_Rbase_+1) % 3) + leaq (%r\_r0_,%r\_r1_),%rsi #precompute key injection value for %rbx + .endr + .endr + .endif + # round 4*_Rbase_ + 2 + addReg rax, rbx + RotL64 rbx, 256,%((4*_Rbase_+2) % 8),0 + addReg rcx, rdx + .if (SKEIN_ASM_UNROLL & 256) == 0 + movq ksKey+8*3+F_O(%rbp,%rdi,8),%r10 + .endif + xorReg rbx, rax + RotL64 rdx, 256,%((4*_Rbase_+2) % 8),1 + xorReg rdx, rcx + .if (SKEIN_ASM_UNROLL & 256) == 0 + movq %r8,ksKey+8*6+F_O(%rbp,%rdi,8) #"rotate" the key + leaq 1(%r11,%rdi),%r11 #precompute key + tweak + .endif + Skein_Debug_Round 256,%(4*_Rbase_+3) + # round 4*_Rbase_ + 3 + addReg rax, rdx + RotL64 rdx, 256,%((4*_Rbase_+3) % 8),0 + addReg rcx, rbx + .if (SKEIN_ASM_UNROLL & 256) == 0 + addq ksTwk+8*2+F_O(%rbp,%rdi,8),%r10 #precompute key + tweak + movq %r13,ksTwk+8*4+F_O(%rbp,%rdi,8) #"rotate" the tweak + .endif + xorReg rdx, rax + RotL64 rbx, 256,%((4*_Rbase_+3) % 8),1 + xorReg rbx, rcx + Skein_Debug_Round 256,%(4*_Rbase_+4) + .if (SKEIN_ASM_UNROLL & 256) == 0 + addReg r9 ,r13 #precompute key+tweak + .endif + #inject key schedule words +_Rbase_ = _Rbase_+1 + .if SKEIN_ASM_UNROLL & 256 + addReg rax,r,%(8+((_Rbase_+0) % 5)) + addReg rbx,rsi + addReg rcx,rdi + addReg rdx,r,%(8+((_Rbase_+3) % 5)),,_Rbase_ + .else + incq %rdi + addReg rax,r8 + addReg rcx,r10 + addReg rbx,r9 + addReg rdx,r11 + .endif + Skein_Debug_Round 256,SKEIN_RND_KEY_INJECT +.endr #rept _UNROLL_CNT +# +.if (SKEIN_ASM_UNROLL & 256) == 0 + cmpq $2*(ROUNDS_256/8),%rdi + jb Skein_256_round_loop +.endif # (SKEIN_ASM_UNROLL & 256) == 0 + movq ctxPtr +F_O(%rbp),%rdi #restore rdi --> context + + #---------------------------- + # feedforward: ctx->X[i] = X[i] ^ w[i], {i=0..3} + movq $FIRST_MASK64 ,%r14 + xorq Wcopy + 0+F_O (%rbp),%rax + xorq Wcopy + 8+F_O (%rbp),%rbx + xorq Wcopy +16+F_O (%rbp),%rcx + xorq Wcopy +24+F_O (%rbp),%rdx + andq TWEAK + 8 (%rdi),%r14 + movq %rax,X_VARS+ 0(%rdi) #store final result + movq %rbx,X_VARS+ 8(%rdi) + movq %rcx,X_VARS+16(%rdi) + movq %rdx,X_VARS+24(%rdi) + + Skein_Debug_Round 256,SKEIN_RND_FEED_FWD + + # go back for more blocks, if needed + decq blkCnt+F_O(%rbp) + jnz Skein_256_block_loop + movq %r14,TWEAK + 8(%rdi) + Reset_Stack + ret +Skein_256_Process_Block_End: + + .if _SKEIN_DEBUG +Skein_Debug_Round_256: #here with rdx == round "number" from macro + pushq %rsi #save two regs for BLK_BITS-specific parms + pushq %rdi + movq 24(%rsp),%rdi #get back original rdx (pushed on stack in macro call) to rdi + movq %rax,X_stk+ 0+F_O(%rbp) #save X[] state on stack so debug routines can access it + movq %rbx,X_stk+ 8+F_O(%rbp) #(use FP_ since rsp has changed!) + movq %rcx,X_stk+16+F_O(%rbp) + movq %rdi,X_stk+24+F_O(%rbp) + + movq ctxPtr+F_O(%rbp),%rsi #ctx_hdr_ptr + movq $256,%rdi #now are set for the call + jmp Skein_Debug_Round_Common + .endif +# +.if _SKEIN_CODE_SIZE +C_label Skein_256_Process_Block_CodeSize + movq $(Skein_256_Process_Block_End-Skein_256_Process_Block),%rax + ret +# +C_label Skein_256_Unroll_Cnt + .if _UNROLL_CNT <> ROUNDS_256/8 + movq $_UNROLL_CNT,%rax + .else + xorq %rax,%rax + .endif + ret +.endif +# +.endif #_USE_ASM_ & 256 +# +#=================================== Skein_512 ============================================= +# +.if _USE_ASM_ & 512 +# +# void Skein_512_Process_Block(Skein_512_Ctxt_t *ctx,const u08b_t *blkPtr,size_t blkCnt,size_t bitcntAdd) +# +# X[i] == %r[8+i] #register assignments for X[] values during rounds (i=0..7) +# +################# +# MACRO: one round for 512-bit blocks +# +.macro R_512_OneRound rn0,rn1,rn2,rn3,rn4,rn5,rn6,rn7,_Rn_,op1,op2,op3,op4 +# + addReg r\rn0, r\rn1 + RotL64 r\rn1, 512,%((_Rn_) % 8),0 + xorReg r\rn1, r\rn0 + op1 + addReg r\rn2, r\rn3 + RotL64 r\rn3, 512,%((_Rn_) % 8),1 + xorReg r\rn3, r\rn2 + op2 + addReg r\rn4, r\rn5 + RotL64 r\rn5, 512,%((_Rn_) % 8),2 + xorReg r\rn5, r\rn4 + op3 + addReg r\rn6, r\rn7 + RotL64 r\rn7, 512,%((_Rn_) % 8),3 + xorReg r\rn7, r\rn6 + op4 + Skein_Debug_Round 512,%(_Rn_+1),-4 +# +.endm #R_512_OneRound +# +################# +# MACRO: eight rounds for 512-bit blocks +# +.macro R_512_FourRounds _RR_ #RR = base round number (0 % 8) + .if (SKEIN_ASM_UNROLL && 512) + # here for fully unrolled case. + _II_ = ((_RR_)/4) + 1 #key injection counter + R_512_OneRound 8, 9,10,11,12,13,14,15,%((_RR_)+0),,, + R_512_OneRound 10, 9,12,15,14,13, 8,11,%((_RR_)+1),,, + R_512_OneRound 12, 9,14,11, 8,13,10,15,%((_RR_)+2),,, + R_512_OneRound 14, 9, 8,15,10,13,12,11,%((_RR_)+3),, + # inject the key schedule + addq ksKey+8*(((_II_)+0)%9)+F_O(%rbp),%r8 + addReg r11, rax + addq ksKey+8*(((_II_)+1)%9)+F_O(%rbp),%r9 + addReg r12, rbx + addq ksKey+8*(((_II_)+2)%9)+F_O(%rbp),%r10 + addReg r13, rcx + addReg r14, rdx + addReg r15, rsi,,,(_II_) + .else + # here for looping case #"rotate" key/tweak schedule (move up on stack) + incq %rdi #bump key injection counter + R_512_OneRound 8, 9,10,11,12,13,14,15,%((_RR_)+0),,, + R_512_OneRound 10, 9,12,15,14,13, 8,11,%((_RR_)+1),,, + R_512_OneRound 12, 9,14,11, 8,13,10,15,%((_RR_)+2),,, + R_512_OneRound 14, 9, 8,15,10,13,12,11,%((_RR_)+3),, + # inject the key schedule + addq ksKey+8*0+F_O(%rbp,%rdi,8),%r8 + addReg r11, rax + addReg r12, rbx + addq ksKey+8*1+F_O(%rbp,%rdi,8),%r9 + addReg r13, rcx + addReg r14, rdx + addq ksKey+8*2+F_O(%rbp,%rdi,8),%r10 + addReg r15, rsi + addReg r15, rdi #inject the round number + .endif + + #show the result of the key injection + Skein_Debug_Round 512,SKEIN_RND_KEY_INJECT +.endm #R_512_EightRounds +# +################# +# instantiated code +# +C_label Skein_512_Process_Block + Setup_Stack 512,ROUNDS_512/8 + movq TWEAK+ 8(%rdi),%rbx + jmp Skein_512_block_loop + .p2align 4 + # main hash loop for Skein_512 +Skein_512_block_loop: + # general register usage: + # RAX..RDX = temps for key schedule pre-loads + # R8 ..R15 = X0..X7 + # RSP, RBP = stack/frame pointers + # RDI = round counter or context pointer + # RSI = temp + # + movq TWEAK + 0(%rdi),%rax + addq bitAdd+F_O(%rbp),%rax #computed updated tweak value T0 + movq %rbx,%rcx + xorq %rax,%rcx #%rax/%rbx/%rcx = tweak schedule + movq %rax,TWEAK+ 0 (%rdi) #save updated tweak value ctx->h.T[0] + movq %rax,ksTwk+ 0+F_O(%rbp) + movq $KW_PARITY,%rdx + movq blkPtr +F_O(%rbp),%rsi #%rsi --> input block + movq %rbx,ksTwk+ 8+F_O(%rbp) + movq %rcx,ksTwk+16+F_O(%rbp) + .irp _Rn_,8,9,10,11,12,13,14,15 + movq X_VARS+8*(_Rn_-8)(%rdi),%r\_Rn_ + xorq %r\_Rn_,%rdx #compute overall parity + movq %r\_Rn_,ksKey+8*(_Rn_-8)+F_O(%rbp) + .endr #load state into %r8 ..%r15, compute parity + movq %rdx,ksKey+8*(8)+F_O(%rbp)#save key schedule parity + + addReg r13,rax #precompute key injection for tweak + addReg r14, rbx +.if _SKEIN_DEBUG + movq %rbx,TWEAK+ 8(%rdi) #save updated tweak value ctx->h.T[1] for Skein_Debug_Block below +.endif + movq 0(%rsi),%rax #load input block + movq 8(%rsi),%rbx + movq 16(%rsi),%rcx + movq 24(%rsi),%rdx + addReg r8 , rax #do initial key injection + addReg r9 , rbx + movq %rax,Wcopy+ 0+F_O(%rbp) #keep local copy for feedforward + movq %rbx,Wcopy+ 8+F_O(%rbp) + addReg r10, rcx + addReg r11, rdx + movq %rcx,Wcopy+16+F_O(%rbp) + movq %rdx,Wcopy+24+F_O(%rbp) + + movq 32(%rsi),%rax + movq 40(%rsi),%rbx + movq 48(%rsi),%rcx + movq 56(%rsi),%rdx + addReg r12, rax + addReg r13, rbx + addReg r14, rcx + addReg r15, rdx + movq %rax,Wcopy+32+F_O(%rbp) + movq %rbx,Wcopy+40+F_O(%rbp) + movq %rcx,Wcopy+48+F_O(%rbp) + movq %rdx,Wcopy+56+F_O(%rbp) + +.if _SKEIN_DEBUG + .irp _Rn_,8,9,10,11,12,13,14,15 #save values on stack for debug output + movq %r\_Rn_,X_stk+8*(_Rn_-8)(%rsp) + .endr + + Skein_Debug_Block 512 #debug dump + Skein_Debug_Round 512,SKEIN_RND_KEY_INITIAL +.endif + addq $8*WCNT,%rsi #skip the block + movq %rsi,blkPtr+F_O(%rbp) #update block pointer + # + ################# + # now the key schedule is computed. Start the rounds + # +.if SKEIN_ASM_UNROLL & 512 +_UNROLL_CNT = ROUNDS_512/8 +.else +_UNROLL_CNT = SKEIN_UNROLL_512 + .if ((ROUNDS_512/8) % _UNROLL_CNT) + .error "Invalid SKEIN_UNROLL_512" + .endif + xorq %rdi,%rdi #rdi = round counter +Skein_512_round_loop: +.endif +# +_Rbase_ = 0 +.rept _UNROLL_CNT*2 + R_512_FourRounds %(4*_Rbase_+00) +_Rbase_ = _Rbase_+1 +.endr #rept _UNROLL_CNT +# +.if (SKEIN_ASM_UNROLL & 512) == 0 + cmpq $2*(ROUNDS_512/8),%rdi + jb Skein_512_round_loop + movq ctxPtr +F_O(%rbp),%rdi #restore rdi --> context +.endif + # end of rounds + ################# + # feedforward: ctx->X[i] = X[i] ^ w[i], {i=0..7} + .irp _Rn_,8,9,10,11,12,13,14,15 + .if (_Rn_ == 8) + movq $FIRST_MASK64,%rbx + .endif + xorq Wcopy+8*(_Rn_-8)+F_O(%rbp),%r\_Rn_ #feedforward XOR + movq %r\_Rn_,X_VARS+8*(_Rn_-8)(%rdi) #and store result + .if (_Rn_ == 14) + andq TWEAK+ 8(%rdi),%rbx + .endif + .endr + Skein_Debug_Round 512,SKEIN_RND_FEED_FWD + + # go back for more blocks, if needed + decq blkCnt+F_O(%rbp) + jnz Skein_512_block_loop + movq %rbx,TWEAK + 8(%rdi) + + Reset_Stack + ret +Skein_512_Process_Block_End: +# + .if _SKEIN_DEBUG +# call here with rdx = "round number" +Skein_Debug_Round_512: + pushq %rsi #save two regs for BLK_BITS-specific parms + pushq %rdi + .irp _Rn_,8,9,10,11,12,13,14,15 #save X[] state on stack so debug routines can access it + movq %r\_Rn_,X_stk+8*(_Rn_-8)+F_O(%rbp) + .endr + movq ctxPtr+F_O(%rbp),%rsi #ctx_hdr_ptr + movq $512,%rdi #now are set for the call + jmp Skein_Debug_Round_Common + .endif +# +.if _SKEIN_CODE_SIZE +C_label Skein_512_Process_Block_CodeSize + movq $(Skein_512_Process_Block_End-Skein_512_Process_Block),%rax + ret +# +C_label Skein_512_Unroll_Cnt + .if _UNROLL_CNT <> (ROUNDS_512/8) + movq $_UNROLL_CNT,%rax + .else + xorq %rax,%rax + .endif + ret +.endif +# +.endif # _USE_ASM_ & 512 +# +#=================================== Skein1024 ============================================= +.if _USE_ASM_ & 1024 +# +# void Skein1024_Process_Block(Skein_1024_Ctxt_t *ctx,const u08b_t *blkPtr,size_t blkCnt,size_t bitcntAdd)# +# +################# +# use details of permutation to make register assignments +# +o1K_rdi = 0 #offsets in X[] associated with each register +o1K_rsi = 1 +o1K_rbp = 2 +o1K_rax = 3 +o1K_rcx = 4 #rcx is "shared" with X6, since X4/X6 alternate +o1K_rbx = 5 +o1K_rdx = 7 +o1K_r8 = 8 +o1K_r9 = 9 +o1K_r10 = 10 +o1K_r11 = 11 +o1K_r12 = 12 +o1K_r13 = 13 +o1K_r14 = 14 +o1K_r15 = 15 +# +rIdx_offs = tmpStk_1024 +# +.macro r1024_Mix w0,w1,reg0,reg1,_RN0_,_Rn1_,op1 + addReg \reg0 , \reg1 #perform the MIX + RotL64 \reg1 , 1024,%((_RN0_) % 8),_Rn1_ + xorReg \reg1 , \reg0 +.if ((_RN0_) && 3) == 3 #time to do key injection? + .if _SKEIN_DEBUG + movq %\reg0 , xDebug_1024+8*w0(%rsp) #save intermediate values for Debug_Round + movq %\reg1 , xDebug_1024+8*w1(%rsp) # (before inline key injection) + .endif +_II_ = ((_RN0_)/4)+1 #injection count + .if SKEIN_ASM_UNROLL && 1024 #here to do fully unrolled key injection + addq ksKey+ 8*((_II_+w0) % 17)(%rsp),%\reg0 + addq ksKey+ 8*((_II_+w1) % 17)(%rsp),%\reg1 + .if w1 == 13 #tweak injection + addq ksTwk+ 8*((_II_+ 0) % 3)(%rsp),%\reg1 + .elseif w0 == 14 + addq ksTwk+ 8*((_II_+ 1) % 3)(%rsp),%\reg0 + .elseif w1 == 15 + addq $_II_, %\reg1 #(injection counter) + .endif + .else #here to do looping key injection + .if (w0 == 0) + movq %rdi, X_stk+8*w0(%rsp) #if so, store N0 so we can use reg as index + movq rIdx_offs(%rsp),%rdi #get the injection counter index into rdi + .else + addq ksKey+8+8*w0(%rsp,%rdi,8),%\reg0 #even key injection + .endif + .if w1 == 13 #tweak injection + addq ksTwk+8+8* 0(%rsp,%rdi,8),%\reg1 + .elseif w0 == 14 + addq ksTwk+8+8* 1(%rsp,%rdi,8),%\reg0 + .elseif w1 == 15 + addReg \reg1,rdi,,,1 #(injection counter) + .endif + addq ksKey+8+8*w1(%rsp,%rdi,8),%\reg1 #odd key injection + .endif +.endif + # insert the op provided, .if any + op1 +.endm +################# +# MACRO: four rounds for 1024-bit blocks +# +.macro r1024_FourRounds _RR_ #RR = base round number (0 mod 4) + # should be here with X4 set properly, X6 stored on stack +_Rn_ = (_RR_) + 0 + r1024_Mix 0, 1,rdi,rsi,_Rn_,0 + r1024_Mix 2, 3,rbp,rax,_Rn_,1 + r1024_Mix 4, 5,rcx,rbx,_Rn_,2, #save X4 on stack (x4/x6 alternate) + r1024_Mix 8, 9,r8 ,r9 ,_Rn_,4, #load X6 from stack + r1024_Mix 10,11,r10,r11,_Rn_,5 + r1024_Mix 12,13,r12,r13,_Rn_,6 + r1024_Mix 6, 7,rcx,rdx,_Rn_,3 + r1024_Mix 14,15,r14,r15,_Rn_,7 + .if _SKEIN_DEBUG + Skein_Debug_Round 1024,%(_Rn_+1) + .endif +_Rn_ = (_RR_) + 1 + r1024_Mix 0, 9,rdi,r9 ,_Rn_,0 + r1024_Mix 2,13,rbp,r13,_Rn_,1 + r1024_Mix 6,11,rcx,r11,_Rn_,2, #save X6 on stack (x4/x6 alternate) + r1024_Mix 10, 7,r10,rdx,_Rn_,4, #load X4 from stack + r1024_Mix 12, 3,r12,rax,_Rn_,5 + r1024_Mix 14, 5,r14,rbx,_Rn_,6 + r1024_Mix 4,15,rcx,r15,_Rn_,3 + r1024_Mix 8, 1,r8 ,rsi,_Rn_,7 + .if _SKEIN_DEBUG + Skein_Debug_Round 1024,%(_Rn_+1) + .endif +_Rn_ = (_RR_) + 2 + r1024_Mix 0, 7,rdi,rdx,_Rn_,0 + r1024_Mix 2, 5,rbp,rbx,_Rn_,1 + r1024_Mix 4, 3,rcx,rax,_Rn_,2, #save X4 on stack (x4/x6 alternate) + r1024_Mix 12,15,r12,r15,_Rn_,4, #load X6 from stack + r1024_Mix 14,13,r14,r13,_Rn_,5 + r1024_Mix 8,11,r8 ,r11,_Rn_,6 + r1024_Mix 6, 1,rcx,rsi,_Rn_,3 + r1024_Mix 10, 9,r10,r9 ,_Rn_,7 + .if _SKEIN_DEBUG + Skein_Debug_Round 1024,%(_Rn_+1) + .endif +_Rn_ = (_RR_) + 3 + r1024_Mix 0,15,rdi,r15,_Rn_,0 + r1024_Mix 2,11,rbp,r11,_Rn_,1 + r1024_Mix 6,13,rcx,r13,_Rn_,2, #save X6 on stack (x4/x6 alternate) + r1024_Mix 14, 1,r14,rsi,_Rn_,4, #load X4 from stack + r1024_Mix 8, 5,r8 ,rbx,_Rn_,5 + r1024_Mix 10, 3,r10,rax,_Rn_,6 + r1024_Mix 4, 9,rcx,r9 ,_Rn_,3 + r1024_Mix 12, 7,r12,rdx,_Rn_,7 + .if _SKEIN_DEBUG + Skein_Debug_Round 1024,%(_Rn_+1) + .endif + + .if (SKEIN_ASM_UNROLL && 1024) == 0 #here with rdi == rIdx, X0 on stack + #"rotate" the key schedule on the stack +i8 = o1K_r8 +i0 = o1K_rdi + movq %r8 , X_stk+8*i8(%rsp) #free up a register (save it on the stack) + movq ksKey+8* 0(%rsp,%rdi,8),%r8 #get key word + movq %r8 , ksKey+8*17(%rsp,%rdi,8) #rotate key (must do key first or tweak clobbers it!) + movq ksTwk+8* 0(%rsp,%rdi,8),%r8 #get tweak word + movq %r8 , ksTwk+8* 3(%rsp,%rdi,8) #rotate tweak (onto the stack) + movq X_stk+8*i8(%rsp) ,%r8 #get the reg back + incq %rdi #bump the index + movq %rdi, rIdx_offs (%rsp) #save rdi again + movq ksKey+8*i0(%rsp,%rdi,8),%rdi #get the key schedule word for X0 back + addq X_stk+8*i0(%rsp) ,%rdi #perform the X0 key injection + .endif + #show the result of the key injection + Skein_Debug_Round 1024,SKEIN_RND_KEY_INJECT +.endm #r1024_FourRounds +# +################ +# code +# +C_label Skein1024_Process_Block +# + Setup_Stack 1024,ROUNDS_1024/8,WCNT + movq TWEAK+ 8(%rdi),%r9 + jmp Skein1024_block_loop + # main hash loop for Skein1024 + .p2align 4 +Skein1024_block_loop: + # general register usage: + # RSP = stack pointer + # RAX..RDX,RSI,RDI = X1, X3..X7 (state words) + # R8 ..R15 = X8..X15 (state words) + # RBP = temp (used for X0 and X2) + # + .if (SKEIN_ASM_UNROLL & 1024) == 0 + xorq %rax,%rax #init loop index on the stack + movq %rax,rIdx_offs(%rsp) + .endif + movq TWEAK+ 0(%rdi),%r8 + addq bitAdd+ F_O(%rbp),%r8 #computed updated tweak value T0 + movq %r9 ,%r10 + xorq %r8 ,%r10 #%rax/%rbx/%rcx = tweak schedule + movq %r8 ,TWEAK+ 0(%rdi) #save updated tweak value ctx->h.T[0] + movq %r8 ,ksTwk+ 0+F_O(%rbp) + movq %r9 ,ksTwk+ 8+F_O(%rbp) #keep values in %r8 ,%r9 for initial tweak injection below + movq %r10,ksTwk+16+F_O(%rbp) + .if _SKEIN_DEBUG + movq %r9 ,TWEAK+ 8(%rdi) #save updated tweak value ctx->h.T[1] for Skein_Debug_Block + .endif + movq blkPtr +F_O(%rbp),%rsi # rsi --> input block + movq $KW_PARITY ,%rax #overall key schedule parity + + # the logic here assumes the set {rdi,rsi,rbp,rax} = X[0,1,2,3] + .irp _rN_,0,1,2,3,4,6 #process the "initial" words, using r14/r15 as temps + movq X_VARS+8*_rN_(%rdi),%r14 #get state word + movq 8*_rN_(%rsi),%r15 #get msg word + xorq %r14,%rax #update key schedule overall parity + movq %r14,ksKey +8*_rN_+F_O(%rbp) #save key schedule word on stack + movq %r15,Wcopy +8*_rN_+F_O(%rbp) #save local msg Wcopy + addq %r15,%r14 #do the initial key injection + movq %r14,X_stk +8*_rN_ (%rsp) #save initial state var on stack + .endr + # now process the rest, using the "real" registers + # (MUST do it in reverse order to inject tweaks r8/r9 first) + .irp _rr_,r15,r14,r13,r12,r11,r10,r9,r8,rdx,rbx +_oo_ = o1K_\_rr_ #offset assocated with the register + movq X_VARS+8*_oo_(%rdi),%\_rr_ #get key schedule word from context + movq 8*_oo_(%rsi),%rcx #get next input msg word + movq %\_rr_, ksKey +8*_oo_(%rsp) #save key schedule on stack + xorq %\_rr_, %rax #accumulate key schedule parity + movq %rcx,Wcopy+8*_oo_+F_O(%rbp) #save copy of msg word for feedforward + addq %rcx,%\_rr_ #do the initial key injection + .if _oo_ == 13 #do the initial tweak injection + addReg _rr_,r8 # (only in words 13/14) + .elseif _oo_ == 14 + addReg _rr_,r9 + .endif + .endr + movq %rax,ksKey+8*WCNT+F_O(%rbp) #save key schedule parity +.if _SKEIN_DEBUG + Skein_Debug_Block 1024 #initial debug dump +.endif + addq $8*WCNT,%rsi #bump the msg ptr + movq %rsi,blkPtr+F_O(%rbp) #save bumped msg ptr + # re-load words 0..4 from stack, enter the main loop + .irp _rr_,rdi,rsi,rbp,rax,rcx #(no need to re-load x6, already on stack) + movq X_stk+8*o1K_\_rr_(%rsp),%\_rr_ #re-load state and get ready to go! + .endr +.if _SKEIN_DEBUG + Skein_Debug_Round 1024,SKEIN_RND_KEY_INITIAL #show state after initial key injection +.endif + # + ################# + # now the key schedule is computed. Start the rounds + # +.if SKEIN_ASM_UNROLL & 1024 +_UNROLL_CNT = ROUNDS_1024/8 +.else +_UNROLL_CNT = SKEIN_UNROLL_1024 + .if ((ROUNDS_1024/8) % _UNROLL_CNT) + .error "Invalid SKEIN_UNROLL_1024" + .endif +Skein1024_round_loop: +.endif +# +_Rbase_ = 0 +.rept _UNROLL_CNT*2 #implement the rounds, 4 at a time + r1024_FourRounds %(4*_Rbase_+00) +_Rbase_ = _Rbase_+1 +.endr #rept _UNROLL_CNT +# +.if (SKEIN_ASM_UNROLL & 1024) == 0 + cmpq $2*(ROUNDS_1024/8),tmpStk_1024(%rsp) #see .if we are done + jb Skein1024_round_loop +.endif + # end of rounds + ################# + # + # feedforward: ctx->X[i] = X[i] ^ w[i], {i=0..15} + movq %rdx,X_stk+8*o1K_rdx(%rsp) #we need a register. x6 already on stack + movq ctxPtr(%rsp),%rdx + + .irp _rr_,rdi,rsi,rbp,rax,rcx,rbx,r8,r9,r10,r11,r12,r13,r14,r15 #do all but x6,x7 +_oo_ = o1K_\_rr_ + xorq Wcopy +8*_oo_(%rsp),%\_rr_ #feedforward XOR + movq %\_rr_,X_VARS+8*_oo_(%rdx) #save result into context + .if (_oo_ == 9) + movq $FIRST_MASK64 ,%r9 + .endif + .if (_oo_ == 14) + andq TWEAK+ 8(%rdx),%r9 + .endif + .endr + # + movq X_stk +8*6(%rsp),%rax #now process x6,x7 (skipped in .irp above) + movq X_stk +8*7(%rsp),%rbx + xorq Wcopy +8*6(%rsp),%rax + xorq Wcopy +8*7(%rsp),%rbx + movq %rax,X_VARS+8*6(%rdx) + decq blkCnt(%rsp) #set zero flag iff done + movq %rbx,X_VARS+8*7(%rdx) + + Skein_Debug_Round 1024,SKEIN_RND_FEED_FWD,, + # go back for more blocks, if needed + movq ctxPtr(%rsp),%rdi #don't muck with the flags here! + lea FRAME_OFFS(%rsp),%rbp + jnz Skein1024_block_loop + movq %r9 ,TWEAK+ 8(%rdx) + Reset_Stack + ret +# +Skein1024_Process_Block_End: +# +.if _SKEIN_DEBUG +Skein_Debug_Round_1024: + # call here with rdx = "round number", +_SP_OFFS_ = 8*2 #stack "offset" here: rdx, return addr + # + #save rest of X[] state on stack so debug routines can access it + .irp _rr_,rsi,rbp,rax,rbx,r8,r9,r10,r11,r12,r13,r14,r15 + movq %\_rr_,X_stk+8*o1K_\_rr_+_SP_OFFS_(%rsp) + .endr + # Figure out what to do with x0 (rdi). When rdx == 0 mod 4, it's already on stack + cmpq $SKEIN_RND_SPECIAL,%rdx #special rounds always save + jae save_x0 + testq $3,%rdx #otherwise only if rdx != 0 mod 4 + jz save_x0_not +save_x0: + movq %rdi,X_stk+8*o1K_rdi+_SP_OFFS_(%rsp) +save_x0_not: + #figure out the x4/x6 swapping state and save the correct one! + cmpq $SKEIN_RND_SPECIAL,%rdx #special rounds always do x4 + jae save_x4 + testq $1,%rdx #and even ones have r4 as well + jz save_x4 + movq %rcx,X_stk+8*6+_SP_OFFS_(%rsp) + jmp debug_1024_go +save_x4: + movq %rcx,X_stk+8*4+_SP_OFFS_(%rsp) +debug_1024_go: + #now all is saved in Xstk[] except for rdx + push %rsi #save two regs for BLK_BITS-specific parms + push %rdi +_SP_OFFS_ = _SP_OFFS_ + 16 #adjust stack offset accordingly (now 32) + + movq _SP_OFFS_-8(%rsp),%rsi #get back original %rdx (pushed on stack in macro call) + movq %rsi,X_stk+8*o1K_rdx+_SP_OFFS_(%rsp) #and save it in its rightful place in X_stk[] + + movq ctxPtr+_SP_OFFS_(%rsp),%rsi #rsi = ctx_hdr_ptr + movq $1024,%rdi #rdi = block size + jmp Skein_Debug_Round_Common +.endif +# +.if _SKEIN_CODE_SIZE +C_label Skein1024_Process_Block_CodeSize + movq $(Skein1024_Process_Block_End-Skein1024_Process_Block),%rax + ret +# +C_label Skein1024_Unroll_Cnt + .if _UNROLL_CNT <> (ROUNDS_1024/8) + movq $_UNROLL_CNT,%rax + .else + xorq %rax,%rax + .endif + ret +.endif +# +.endif # _USE_ASM_ and 1024 +# +.if _SKEIN_DEBUG +#---------------------------------------------------------------- +#local debug routine to set up for calls to: +# void Skein_Show_Round(uint_t bits,const Skein_Ctxt_Hdr_t *h,int r,const u64b_t *X) +# [ rdi rsi rdx rcx] +# +# here with %rdx = round number +# %rsi = ctx_hdr_ptr +# %rdi = block size (256/512/1024) +# on stack: saved rdi, saved rsi, retAddr, saved rdx +# +Skein_Debug_Round_Common: +_SP_OFFS_ = 32 #account for four words on stack already + .irp _rr_,rax,rbx,rcx,rbp,r8,r9,r10,r11,r12,r13,r14,r15 #save the rest of the regs + pushq %\_rr_ +_SP_OFFS_ = _SP_OFFS_+8 + .endr + .if (_SP_OFFS_ % 16) # make sure stack is still 16-byte aligned here + .error "Debug_Round_Common: stack alignment" + .endif + # compute %rcx = ptr to the X[] array on the stack (final parameter to call) + leaq X_stk+_SP_OFFS_(%rsp),%rcx #adjust for reg pushes, return address + cmpq $SKEIN_RND_FEED_FWD,%rdx #special handling for feedforward "round"? + jnz _got_rcxA + leaq X_VARS(%rsi),%rcx +_got_rcxA: + .if _USE_ASM_ & 1024 + # special handling for 1024-bit case + # (for rounds right before with key injection: + # use xDebug_1024[] instead of X_stk[]) + cmpq $SKEIN_RND_SPECIAL,%rdx + jae _got_rcxB #must be a normal round + orq %rdx,%rdx + jz _got_rcxB #just before key injection + test $3,%rdx + jne _got_rcxB + cmp $1024,%rdi #only 1024-bit(s) for now + jne _got_rcxB + leaq xDebug_1024+_SP_OFFS_(%rsp),%rcx +_got_rcxB: + .endif + call Skein_Show_Round #call external debug handler + + .irp _rr_,r15,r14,r13,r12,r11,r10,r9,r8,rbp,rcx,rbx,rax #restore regs + popq %\_rr_ +_SP_OFFS_ = _SP_OFFS_-8 + .endr + .if _SP_OFFS_ - 32 + .error "Debug_Round_Common: push/pop misalignment!" + .endif + popq %rdi + popq %rsi + ret +.endif +#---------------------------------------------------------------- + .section .note.GNU-stack,"",@progbits + + .end Property changes on: projects/nfs-over-tls/sys/crypto/skein/amd64/skein_block_asm.S ___________________________________________________________________ Added: svn:eol-style ## -0,0 +1 ## +native \ No newline at end of property Added: svn:keywords ## -0,0 +1 ## +FreeBSD=%H \ No newline at end of property Added: svn:mime-type ## -0,0 +1 ## +text/plain \ No newline at end of property