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-rw-r--r--arch/arm/crypto/sha1-armv4-large.S497
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diff --git a/arch/arm/crypto/sha1-armv4-large.S b/arch/arm/crypto/sha1-armv4-large.S
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+++ b/arch/arm/crypto/sha1-armv4-large.S
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+#define __ARM_ARCH__ __LINUX_ARM_ARCH__
+@ ====================================================================
+@ Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
+@ project. The module is, however, dual licensed under OpenSSL and
+@ CRYPTOGAMS licenses depending on where you obtain it. For further
+@ details see http://www.openssl.org/~appro/cryptogams/.
+@ ====================================================================
+
+@ sha1_block procedure for ARMv4.
+@
+@ January 2007.
+
+@ Size/performance trade-off
+@ ====================================================================
+@ impl size in bytes comp cycles[*] measured performance
+@ ====================================================================
+@ thumb 304 3212 4420
+@ armv4-small 392/+29% 1958/+64% 2250/+96%
+@ armv4-compact 740/+89% 1552/+26% 1840/+22%
+@ armv4-large 1420/+92% 1307/+19% 1370/+34%[***]
+@ full unroll ~5100/+260% ~1260/+4% ~1300/+5%
+@ ====================================================================
+@ thumb = same as 'small' but in Thumb instructions[**] and
+@ with recurring code in two private functions;
+@ small = detached Xload/update, loops are folded;
+@ compact = detached Xload/update, 5x unroll;
+@ large = interleaved Xload/update, 5x unroll;
+@ full unroll = interleaved Xload/update, full unroll, estimated[!];
+@
+@ [*] Manually counted instructions in "grand" loop body. Measured
+@ performance is affected by prologue and epilogue overhead,
+@ i-cache availability, branch penalties, etc.
+@ [**] While each Thumb instruction is twice smaller, they are not as
+@ diverse as ARM ones: e.g., there are only two arithmetic
+@ instructions with 3 arguments, no [fixed] rotate, addressing
+@ modes are limited. As result it takes more instructions to do
+@ the same job in Thumb, therefore the code is never twice as
+@ small and always slower.
+@ [***] which is also ~35% better than compiler generated code. Dual-
+@ issue Cortex A8 core was measured to process input block in
+@ ~990 cycles.
+
+@ August 2010.
+@
+@ Rescheduling for dual-issue pipeline resulted in 13% improvement on
+@ Cortex A8 core and in absolute terms ~870 cycles per input block
+@ [or 13.6 cycles per byte].
+
+@ February 2011.
+@
+@ Profiler-assisted and platform-specific optimization resulted in 10%
+@ improvement on Cortex A8 core and 12.2 cycles per byte.
+
+#include <linux/linkage.h>
+
+.text
+
+.align 2
+ENTRY(sha1_block_data_order)
+ stmdb sp!,{r4-r12,lr}
+ add r2,r1,r2,lsl#6 @ r2 to point at the end of r1
+ ldmia r0,{r3,r4,r5,r6,r7}
+.Lloop:
+ ldr r8,.LK_00_19
+ mov r14,sp
+ sub sp,sp,#15*4
+ mov r5,r5,ror#30
+ mov r6,r6,ror#30
+ mov r7,r7,ror#30 @ [6]
+.L_00_15:
+#if __ARM_ARCH__<7
+ ldrb r10,[r1,#2]
+ ldrb r9,[r1,#3]
+ ldrb r11,[r1,#1]
+ add r7,r8,r7,ror#2 @ E+=K_00_19
+ ldrb r12,[r1],#4
+ orr r9,r9,r10,lsl#8
+ eor r10,r5,r6 @ F_xx_xx
+ orr r9,r9,r11,lsl#16
+ add r7,r7,r3,ror#27 @ E+=ROR(A,27)
+ orr r9,r9,r12,lsl#24
+#else
+ ldr r9,[r1],#4 @ handles unaligned
+ add r7,r8,r7,ror#2 @ E+=K_00_19
+ eor r10,r5,r6 @ F_xx_xx
+ add r7,r7,r3,ror#27 @ E+=ROR(A,27)
+#ifdef __ARMEL__
+ rev r9,r9 @ byte swap
+#endif
+#endif
+ and r10,r4,r10,ror#2
+ add r7,r7,r9 @ E+=X[i]
+ eor r10,r10,r6,ror#2 @ F_00_19(B,C,D)
+ str r9,[r14,#-4]!
+ add r7,r7,r10 @ E+=F_00_19(B,C,D)
+#if __ARM_ARCH__<7
+ ldrb r10,[r1,#2]
+ ldrb r9,[r1,#3]
+ ldrb r11,[r1,#1]
+ add r6,r8,r6,ror#2 @ E+=K_00_19
+ ldrb r12,[r1],#4
+ orr r9,r9,r10,lsl#8
+ eor r10,r4,r5 @ F_xx_xx
+ orr r9,r9,r11,lsl#16
+ add r6,r6,r7,ror#27 @ E+=ROR(A,27)
+ orr r9,r9,r12,lsl#24
+#else
+ ldr r9,[r1],#4 @ handles unaligned
+ add r6,r8,r6,ror#2 @ E+=K_00_19
+ eor r10,r4,r5 @ F_xx_xx
+ add r6,r6,r7,ror#27 @ E+=ROR(A,27)
+#ifdef __ARMEL__
+ rev r9,r9 @ byte swap
+#endif
+#endif
+ and r10,r3,r10,ror#2
+ add r6,r6,r9 @ E+=X[i]
+ eor r10,r10,r5,ror#2 @ F_00_19(B,C,D)
+ str r9,[r14,#-4]!
+ add r6,r6,r10 @ E+=F_00_19(B,C,D)
+#if __ARM_ARCH__<7
+ ldrb r10,[r1,#2]
+ ldrb r9,[r1,#3]
+ ldrb r11,[r1,#1]
+ add r5,r8,r5,ror#2 @ E+=K_00_19
+ ldrb r12,[r1],#4
+ orr r9,r9,r10,lsl#8
+ eor r10,r3,r4 @ F_xx_xx
+ orr r9,r9,r11,lsl#16
+ add r5,r5,r6,ror#27 @ E+=ROR(A,27)
+ orr r9,r9,r12,lsl#24
+#else
+ ldr r9,[r1],#4 @ handles unaligned
+ add r5,r8,r5,ror#2 @ E+=K_00_19
+ eor r10,r3,r4 @ F_xx_xx
+ add r5,r5,r6,ror#27 @ E+=ROR(A,27)
+#ifdef __ARMEL__
+ rev r9,r9 @ byte swap
+#endif
+#endif
+ and r10,r7,r10,ror#2
+ add r5,r5,r9 @ E+=X[i]
+ eor r10,r10,r4,ror#2 @ F_00_19(B,C,D)
+ str r9,[r14,#-4]!
+ add r5,r5,r10 @ E+=F_00_19(B,C,D)
+#if __ARM_ARCH__<7
+ ldrb r10,[r1,#2]
+ ldrb r9,[r1,#3]
+ ldrb r11,[r1,#1]
+ add r4,r8,r4,ror#2 @ E+=K_00_19
+ ldrb r12,[r1],#4
+ orr r9,r9,r10,lsl#8
+ eor r10,r7,r3 @ F_xx_xx
+ orr r9,r9,r11,lsl#16
+ add r4,r4,r5,ror#27 @ E+=ROR(A,27)
+ orr r9,r9,r12,lsl#24
+#else
+ ldr r9,[r1],#4 @ handles unaligned
+ add r4,r8,r4,ror#2 @ E+=K_00_19
+ eor r10,r7,r3 @ F_xx_xx
+ add r4,r4,r5,ror#27 @ E+=ROR(A,27)
+#ifdef __ARMEL__
+ rev r9,r9 @ byte swap
+#endif
+#endif
+ and r10,r6,r10,ror#2
+ add r4,r4,r9 @ E+=X[i]
+ eor r10,r10,r3,ror#2 @ F_00_19(B,C,D)
+ str r9,[r14,#-4]!
+ add r4,r4,r10 @ E+=F_00_19(B,C,D)
+#if __ARM_ARCH__<7
+ ldrb r10,[r1,#2]
+ ldrb r9,[r1,#3]
+ ldrb r11,[r1,#1]
+ add r3,r8,r3,ror#2 @ E+=K_00_19
+ ldrb r12,[r1],#4
+ orr r9,r9,r10,lsl#8
+ eor r10,r6,r7 @ F_xx_xx
+ orr r9,r9,r11,lsl#16
+ add r3,r3,r4,ror#27 @ E+=ROR(A,27)
+ orr r9,r9,r12,lsl#24
+#else
+ ldr r9,[r1],#4 @ handles unaligned
+ add r3,r8,r3,ror#2 @ E+=K_00_19
+ eor r10,r6,r7 @ F_xx_xx
+ add r3,r3,r4,ror#27 @ E+=ROR(A,27)
+#ifdef __ARMEL__
+ rev r9,r9 @ byte swap
+#endif
+#endif
+ and r10,r5,r10,ror#2
+ add r3,r3,r9 @ E+=X[i]
+ eor r10,r10,r7,ror#2 @ F_00_19(B,C,D)
+ str r9,[r14,#-4]!
+ add r3,r3,r10 @ E+=F_00_19(B,C,D)
+ cmp r14,sp
+ bne .L_00_15 @ [((11+4)*5+2)*3]
+ sub sp,sp,#25*4
+#if __ARM_ARCH__<7
+ ldrb r10,[r1,#2]
+ ldrb r9,[r1,#3]
+ ldrb r11,[r1,#1]
+ add r7,r8,r7,ror#2 @ E+=K_00_19
+ ldrb r12,[r1],#4
+ orr r9,r9,r10,lsl#8
+ eor r10,r5,r6 @ F_xx_xx
+ orr r9,r9,r11,lsl#16
+ add r7,r7,r3,ror#27 @ E+=ROR(A,27)
+ orr r9,r9,r12,lsl#24
+#else
+ ldr r9,[r1],#4 @ handles unaligned
+ add r7,r8,r7,ror#2 @ E+=K_00_19
+ eor r10,r5,r6 @ F_xx_xx
+ add r7,r7,r3,ror#27 @ E+=ROR(A,27)
+#ifdef __ARMEL__
+ rev r9,r9 @ byte swap
+#endif
+#endif
+ and r10,r4,r10,ror#2
+ add r7,r7,r9 @ E+=X[i]
+ eor r10,r10,r6,ror#2 @ F_00_19(B,C,D)
+ str r9,[r14,#-4]!
+ add r7,r7,r10 @ E+=F_00_19(B,C,D)
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r6,r8,r6,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r4,r5 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r6,r6,r7,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ and r10,r3,r10,ror#2 @ F_xx_xx
+ @ F_xx_xx
+ add r6,r6,r9 @ E+=X[i]
+ eor r10,r10,r5,ror#2 @ F_00_19(B,C,D)
+ add r6,r6,r10 @ E+=F_00_19(B,C,D)
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r5,r8,r5,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r3,r4 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r5,r5,r6,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ and r10,r7,r10,ror#2 @ F_xx_xx
+ @ F_xx_xx
+ add r5,r5,r9 @ E+=X[i]
+ eor r10,r10,r4,ror#2 @ F_00_19(B,C,D)
+ add r5,r5,r10 @ E+=F_00_19(B,C,D)
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r4,r8,r4,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r7,r3 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r4,r4,r5,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ and r10,r6,r10,ror#2 @ F_xx_xx
+ @ F_xx_xx
+ add r4,r4,r9 @ E+=X[i]
+ eor r10,r10,r3,ror#2 @ F_00_19(B,C,D)
+ add r4,r4,r10 @ E+=F_00_19(B,C,D)
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r3,r8,r3,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r6,r7 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r3,r3,r4,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ and r10,r5,r10,ror#2 @ F_xx_xx
+ @ F_xx_xx
+ add r3,r3,r9 @ E+=X[i]
+ eor r10,r10,r7,ror#2 @ F_00_19(B,C,D)
+ add r3,r3,r10 @ E+=F_00_19(B,C,D)
+
+ ldr r8,.LK_20_39 @ [+15+16*4]
+ cmn sp,#0 @ [+3], clear carry to denote 20_39
+.L_20_39_or_60_79:
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r7,r8,r7,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r5,r6 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r7,r7,r3,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ eor r10,r4,r10,ror#2 @ F_xx_xx
+ @ F_xx_xx
+ add r7,r7,r9 @ E+=X[i]
+ add r7,r7,r10 @ E+=F_20_39(B,C,D)
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r6,r8,r6,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r4,r5 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r6,r6,r7,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ eor r10,r3,r10,ror#2 @ F_xx_xx
+ @ F_xx_xx
+ add r6,r6,r9 @ E+=X[i]
+ add r6,r6,r10 @ E+=F_20_39(B,C,D)
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r5,r8,r5,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r3,r4 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r5,r5,r6,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ eor r10,r7,r10,ror#2 @ F_xx_xx
+ @ F_xx_xx
+ add r5,r5,r9 @ E+=X[i]
+ add r5,r5,r10 @ E+=F_20_39(B,C,D)
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r4,r8,r4,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r7,r3 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r4,r4,r5,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ eor r10,r6,r10,ror#2 @ F_xx_xx
+ @ F_xx_xx
+ add r4,r4,r9 @ E+=X[i]
+ add r4,r4,r10 @ E+=F_20_39(B,C,D)
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r3,r8,r3,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r6,r7 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r3,r3,r4,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ eor r10,r5,r10,ror#2 @ F_xx_xx
+ @ F_xx_xx
+ add r3,r3,r9 @ E+=X[i]
+ add r3,r3,r10 @ E+=F_20_39(B,C,D)
+ ARM( teq r14,sp ) @ preserve carry
+ THUMB( mov r11,sp )
+ THUMB( teq r14,r11 ) @ preserve carry
+ bne .L_20_39_or_60_79 @ [+((12+3)*5+2)*4]
+ bcs .L_done @ [+((12+3)*5+2)*4], spare 300 bytes
+
+ ldr r8,.LK_40_59
+ sub sp,sp,#20*4 @ [+2]
+.L_40_59:
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r7,r8,r7,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r5,r6 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r7,r7,r3,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ and r10,r4,r10,ror#2 @ F_xx_xx
+ and r11,r5,r6 @ F_xx_xx
+ add r7,r7,r9 @ E+=X[i]
+ add r7,r7,r10 @ E+=F_40_59(B,C,D)
+ add r7,r7,r11,ror#2
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r6,r8,r6,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r4,r5 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r6,r6,r7,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ and r10,r3,r10,ror#2 @ F_xx_xx
+ and r11,r4,r5 @ F_xx_xx
+ add r6,r6,r9 @ E+=X[i]
+ add r6,r6,r10 @ E+=F_40_59(B,C,D)
+ add r6,r6,r11,ror#2
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r5,r8,r5,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r3,r4 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r5,r5,r6,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ and r10,r7,r10,ror#2 @ F_xx_xx
+ and r11,r3,r4 @ F_xx_xx
+ add r5,r5,r9 @ E+=X[i]
+ add r5,r5,r10 @ E+=F_40_59(B,C,D)
+ add r5,r5,r11,ror#2
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r4,r8,r4,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r7,r3 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r4,r4,r5,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ and r10,r6,r10,ror#2 @ F_xx_xx
+ and r11,r7,r3 @ F_xx_xx
+ add r4,r4,r9 @ E+=X[i]
+ add r4,r4,r10 @ E+=F_40_59(B,C,D)
+ add r4,r4,r11,ror#2
+ ldr r9,[r14,#15*4]
+ ldr r10,[r14,#13*4]
+ ldr r11,[r14,#7*4]
+ add r3,r8,r3,ror#2 @ E+=K_xx_xx
+ ldr r12,[r14,#2*4]
+ eor r9,r9,r10
+ eor r11,r11,r12 @ 1 cycle stall
+ eor r10,r6,r7 @ F_xx_xx
+ mov r9,r9,ror#31
+ add r3,r3,r4,ror#27 @ E+=ROR(A,27)
+ eor r9,r9,r11,ror#31
+ str r9,[r14,#-4]!
+ and r10,r5,r10,ror#2 @ F_xx_xx
+ and r11,r6,r7 @ F_xx_xx
+ add r3,r3,r9 @ E+=X[i]
+ add r3,r3,r10 @ E+=F_40_59(B,C,D)
+ add r3,r3,r11,ror#2
+ cmp r14,sp
+ bne .L_40_59 @ [+((12+5)*5+2)*4]
+
+ ldr r8,.LK_60_79
+ sub sp,sp,#20*4
+ cmp sp,#0 @ set carry to denote 60_79
+ b .L_20_39_or_60_79 @ [+4], spare 300 bytes
+.L_done:
+ add sp,sp,#80*4 @ "deallocate" stack frame
+ ldmia r0,{r8,r9,r10,r11,r12}
+ add r3,r8,r3
+ add r4,r9,r4
+ add r5,r10,r5,ror#2
+ add r6,r11,r6,ror#2
+ add r7,r12,r7,ror#2
+ stmia r0,{r3,r4,r5,r6,r7}
+ teq r1,r2
+ bne .Lloop @ [+18], total 1307
+
+ ldmia sp!,{r4-r12,pc}
+.align 2
+.LK_00_19: .word 0x5a827999
+.LK_20_39: .word 0x6ed9eba1
+.LK_40_59: .word 0x8f1bbcdc
+.LK_60_79: .word 0xca62c1d6
+ENDPROC(sha1_block_data_order)
+.asciz "SHA1 block transform for ARMv4, CRYPTOGAMS by <appro@openssl.org>"
+.align 2
generated by cgit v1.1 at 2024-04-27 06:08:54 +0000