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sparc64: Unroll CTR crypt loops in AES driver. 

Before:

testing speed of ctr(aes) encryption
test 0 (128 bit key, 16 byte blocks): 1 operation in 206 cycles (16 bytes)
test 1 (128 bit key, 64 byte blocks): 1 operation in 244 cycles (64 bytes)
test 2 (128 bit key, 256 byte blocks): 1 operation in 360 cycles (256 bytes)
test 3 (128 bit key, 1024 byte blocks): 1 operation in 814 cycles (1024 bytes)
test 4 (128 bit key, 8192 byte blocks): 1 operation in 5021 cycles (8192 bytes)
test 5 (192 bit key, 16 byte blocks): 1 operation in 206 cycles (16 bytes)
test 6 (192 bit key, 64 byte blocks): 1 operation in 240 cycles (64 bytes)
test 7 (192 bit key, 256 byte blocks): 1 operation in 378 cycles (256 bytes)
test 8 (192 bit key, 1024 byte blocks): 1 operation in 939 cycles (1024 bytes)
test 9 (192 bit key, 8192 byte blocks): 1 operation in 6395 cycles (8192 bytes)
test 10 (256 bit key, 16 byte blocks): 1 operation in 209 cycles (16 bytes)
test 11 (256 bit key, 64 byte blocks): 1 operation in 249 cycles (64 bytes)
test 12 (256 bit key, 256 byte blocks): 1 operation in 414 cycles (256 bytes)
test 13 (256 bit key, 1024 byte blocks): 1 operation in 1073 cycles (1024 bytes)
test 14 (256 bit key, 8192 byte blocks): 1 operation in 7110 cycles (8192 bytes)

testing speed of ctr(aes) decryption
test 0 (128 bit key, 16 byte blocks): 1 operation in 225 cycles (16 bytes)
test 1 (128 bit key, 64 byte blocks): 1 operation in 233 cycles (64 bytes)
test 2 (128 bit key, 256 byte blocks): 1 operation in 344 cycles (256 bytes)
test 3 (128 bit key, 1024 byte blocks): 1 operation in 810 cycles (1024 bytes)
test 4 (128 bit key, 8192 byte blocks): 1 operation in 5021 cycles (8192 bytes)
test 5 (192 bit key, 16 byte blocks): 1 operation in 206 cycles (16 bytes)
test 6 (192 bit key, 64 byte blocks): 1 operation in 240 cycles (64 bytes)
test 7 (192 bit key, 256 byte blocks): 1 operation in 376 cycles (256 bytes)
test 8 (192 bit key, 1024 byte blocks): 1 operation in 938 cycles (1024 bytes)
test 9 (192 bit key, 8192 byte blocks): 1 operation in 6380 cycles (8192 bytes)
test 10 (256 bit key, 16 byte blocks): 1 operation in 214 cycles (16 bytes)
test 11 (256 bit key, 64 byte blocks): 1 operation in 251 cycles (64 bytes)
test 12 (256 bit key, 256 byte blocks): 1 operation in 411 cycles (256 bytes)
test 13 (256 bit key, 1024 byte blocks): 1 operation in 1070 cycles (1024 bytes)
test 14 (256 bit key, 8192 byte blocks): 1 operation in 7114 cycles (8192 bytes)

After:

testing speed of ctr(aes) encryption
test 0 (128 bit key, 16 byte blocks): 1 operation in 211 cycles (16 bytes)
test 1 (128 bit key, 64 byte blocks): 1 operation in 246 cycles (64 bytes)
test 2 (128 bit key, 256 byte blocks): 1 operation in 344 cycles (256 bytes)
test 3 (128 bit key, 1024 byte blocks): 1 operation in 799 cycles (1024 bytes)
test 4 (128 bit key, 8192 byte blocks): 1 operation in 4975 cycles (8192 bytes)
test 5 (192 bit key, 16 byte blocks): 1 operation in 210 cycles (16 bytes)
test 6 (192 bit key, 64 byte blocks): 1 operation in 236 cycles (64 bytes)
test 7 (192 bit key, 256 byte blocks): 1 operation in 365 cycles (256 bytes)
test 8 (192 bit key, 1024 byte blocks): 1 operation in 888 cycles (1024 bytes)
test 9 (192 bit key, 8192 byte blocks): 1 operation in 6055 cycles (8192 bytes)
test 10 (256 bit key, 16 byte blocks): 1 operation in 209 cycles (16 bytes)
test 11 (256 bit key, 64 byte blocks): 1 operation in 255 cycles (64 bytes)
test 12 (256 bit key, 256 byte blocks): 1 operation in 404 cycles (256 bytes)
test 13 (256 bit key, 1024 byte blocks): 1 operation in 1010 cycles (1024 bytes)
test 14 (256 bit key, 8192 byte blocks): 1 operation in 6669 cycles (8192 bytes)

testing speed of ctr(aes) decryption
test 0 (128 bit key, 16 byte blocks): 1 operation in 210 cycles (16 bytes)
test 1 (128 bit key, 64 byte blocks): 1 operation in 233 cycles (64 bytes)
test 2 (128 bit key, 256 byte blocks): 1 operation in 340 cycles (256 bytes)
test 3 (128 bit key, 1024 byte blocks): 1 operation in 818 cycles (1024 bytes)
test 4 (128 bit key, 8192 byte blocks): 1 operation in 4956 cycles (8192 bytes)
test 5 (192 bit key, 16 byte blocks): 1 operation in 206 cycles (16 bytes)
test 6 (192 bit key, 64 byte blocks): 1 operation in 239 cycles (64 bytes)
test 7 (192 bit key, 256 byte blocks): 1 operation in 361 cycles (256 bytes)
test 8 (192 bit key, 1024 byte blocks): 1 operation in 888 cycles (1024 bytes)
test 9 (192 bit key, 8192 byte blocks): 1 operation in 5996 cycles (8192 bytes)
test 10 (256 bit key, 16 byte blocks): 1 operation in 214 cycles (16 bytes)
test 11 (256 bit key, 64 byte blocks): 1 operation in 248 cycles (64 bytes)
test 12 (256 bit key, 256 byte blocks): 1 operation in 395 cycles (256 bytes)
test 13 (256 bit key, 1024 byte blocks): 1 operation in 1010 cycles (1024 bytes)
test 14 (256 bit key, 8192 byte blocks): 1 operation in 6664 cycles (8192 bytes)

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2012-08-30 08:40:44 -07:00
parent 301013159e
commit 4e71bb49f2
1 changed files with 118 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

142
arch/sparc/crypto/aes_asm.S
View File

@ -48,6 +48,10 @@
.word 0x81b0230d;
#define MOVXTOD_O5_F2 \
.word 0x85b0230d;
#define MOVXTOD_O5_F4 \
.word 0x89b0230d;
#define MOVXTOD_O5_F6 \
.word 0x8db0230d;
#define MOVXTOD_G3_F60 \
.word 0xbbb02303;
#define MOVXTOD_G7_F62 \
@ -1400,9 +1404,44 @@ ENTRY(aes_sparc64_ctr_crypt_128)
/* %o0=key, %o1=input, %o2=output, %o3=len, %o4=IV */
ldx [%o4 + 0x00], %g3
ldx [%o4 + 0x08], %g7
subcc %o3, 0x10, %o3
ldx [%o0 + 0x00], %g1
ldx [%o0 + 0x08], %g2
be 10f
ldx [%o0 + 0x08], %g2
1: xor %g1, %g3, %o5
MOVXTOD_O5_F0
xor %g2, %g7, %o5
MOVXTOD_O5_F2
add %g7, 1, %g7
add %g3, 1, %o5
movrz %g7, %o5, %g3
xor %g1, %g3, %o5
MOVXTOD_O5_F4
xor %g2, %g7, %o5
MOVXTOD_O5_F6
add %g7, 1, %g7
add %g3, 1, %o5
movrz %g7, %o5, %g3
ENCRYPT_128_2(8, 0, 2, 4, 6, 56, 58, 60, 62)
ldd [%o1 + 0x00], %f56
ldd [%o1 + 0x08], %f58
ldd [%o1 + 0x10], %f60
ldd [%o1 + 0x18], %f62
fxor %f56, %f0, %f56
fxor %f58, %f2, %f58
fxor %f60, %f4, %f60
fxor %f62, %f6, %f62
std %f56, [%o2 + 0x00]
std %f58, [%o2 + 0x08]
std %f60, [%o2 + 0x10]
std %f62, [%o2 + 0x18]
subcc %o3, 0x20, %o3
add %o1, 0x20, %o1
brgz %o3, 1b
add %o2, 0x20, %o2
brlz,pt %o3, 11f
nop
10: xor %g1, %g3, %o5
MOVXTOD_O5_F0
xor %g2, %g7, %o5
MOVXTOD_O5_F2
@ -1416,14 +1455,9 @@ ENTRY(aes_sparc64_ctr_crypt_128)
fxor %f6, %f2, %f6
std %f4, [%o2 + 0x00]
std %f6, [%o2 + 0x08]
subcc %o3, 0x10, %o3
add %o1, 0x10, %o1
bne,pt %xcc, 1b
add %o2, 0x10, %o2
stx %g3, [%o4 + 0x00]
stx %g7, [%o4 + 0x08]
11: stx %g3, [%o4 + 0x00]
retl
nop
stx %g7, [%o4 + 0x08]
ENDPROC(aes_sparc64_ctr_crypt_128)
.align 32
@ -1431,9 +1465,44 @@ ENTRY(aes_sparc64_ctr_crypt_192)
/* %o0=key, %o1=input, %o2=output, %o3=len, %o4=IV */
ldx [%o4 + 0x00], %g3
ldx [%o4 + 0x08], %g7
subcc %o3, 0x10, %o3
ldx [%o0 + 0x00], %g1
ldx [%o0 + 0x08], %g2
be 10f
ldx [%o0 + 0x08], %g2
1: xor %g1, %g3, %o5
MOVXTOD_O5_F0
xor %g2, %g7, %o5
MOVXTOD_O5_F2
add %g7, 1, %g7
add %g3, 1, %o5
movrz %g7, %o5, %g3
xor %g1, %g3, %o5
MOVXTOD_O5_F4
xor %g2, %g7, %o5
MOVXTOD_O5_F6
add %g7, 1, %g7
add %g3, 1, %o5
movrz %g7, %o5, %g3
ENCRYPT_192_2(8, 0, 2, 4, 6, 56, 58, 60, 62)
ldd [%o1 + 0x00], %f56
ldd [%o1 + 0x08], %f58
ldd [%o1 + 0x10], %f60
ldd [%o1 + 0x18], %f62
fxor %f56, %f0, %f56
fxor %f58, %f2, %f58
fxor %f60, %f4, %f60
fxor %f62, %f6, %f62
std %f56, [%o2 + 0x00]
std %f58, [%o2 + 0x08]
std %f60, [%o2 + 0x10]
std %f62, [%o2 + 0x18]
subcc %o3, 0x20, %o3
add %o1, 0x20, %o1
brgz %o3, 1b
add %o2, 0x20, %o2
brlz,pt %o3, 11f
nop
10: xor %g1, %g3, %o5
MOVXTOD_O5_F0
xor %g2, %g7, %o5
MOVXTOD_O5_F2
@ -1447,14 +1516,9 @@ ENTRY(aes_sparc64_ctr_crypt_192)
fxor %f6, %f2, %f6
std %f4, [%o2 + 0x00]
std %f6, [%o2 + 0x08]
subcc %o3, 0x10, %o3
add %o1, 0x10, %o1
bne,pt %xcc, 1b
add %o2, 0x10, %o2
stx %g3, [%o4 + 0x00]
stx %g7, [%o4 + 0x08]
11: stx %g3, [%o4 + 0x00]
retl
nop
stx %g7, [%o4 + 0x08]
ENDPROC(aes_sparc64_ctr_crypt_192)
.align 32
@ -1462,9 +1526,44 @@ ENTRY(aes_sparc64_ctr_crypt_256)
/* %o0=key, %o1=input, %o2=output, %o3=len, %o4=IV */
ldx [%o4 + 0x00], %g3
ldx [%o4 + 0x08], %g7
subcc %o3, 0x10, %o3
ldx [%o0 + 0x00], %g1
ldx [%o0 + 0x08], %g2
be 10f
ldx [%o0 + 0x08], %g2
1: xor %g1, %g3, %o5
MOVXTOD_O5_F0
xor %g2, %g7, %o5
MOVXTOD_O5_F2
add %g7, 1, %g7
add %g3, 1, %o5
movrz %g7, %o5, %g3
xor %g1, %g3, %o5
MOVXTOD_O5_F4
xor %g2, %g7, %o5
MOVXTOD_O5_F6
add %g7, 1, %g7
add %g3, 1, %o5
movrz %g7, %o5, %g3
ENCRYPT_256_2(8, 0, 2, 4, 6)
ldd [%o1 + 0x00], %f56
ldd [%o1 + 0x08], %f58
ldd [%o1 + 0x10], %f60
ldd [%o1 + 0x18], %f62
fxor %f56, %f0, %f56
fxor %f58, %f2, %f58
fxor %f60, %f4, %f60
fxor %f62, %f6, %f62
std %f56, [%o2 + 0x00]
std %f58, [%o2 + 0x08]
std %f60, [%o2 + 0x10]
std %f62, [%o2 + 0x18]
subcc %o3, 0x20, %o3
add %o1, 0x20, %o1
brgz %o3, 1b
add %o2, 0x20, %o2
brlz,pt %o3, 11f
nop
10: xor %g1, %g3, %o5
MOVXTOD_O5_F0
xor %g2, %g7, %o5
MOVXTOD_O5_F2
@ -1478,12 +1577,7 @@ ENTRY(aes_sparc64_ctr_crypt_256)
fxor %f6, %f2, %f6
std %f4, [%o2 + 0x00]
std %f6, [%o2 + 0x08]
subcc %o3, 0x10, %o3
add %o1, 0x10, %o1
bne,pt %xcc, 1b
add %o2, 0x10, %o2
stx %g3, [%o4 + 0x00]
stx %g7, [%o4 + 0x08]
11: stx %g3, [%o4 + 0x00]
retl
nop
stx %g7, [%o4 + 0x08]
ENDPROC(aes_sparc64_ctr_crypt_256)