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| author | David S. Miller <davem@davemloft.net> | 2012-08-20 04:51:26 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-08-20 22:08:50 (GMT) |
| commit | fa4dfedcc23a589f953750de54eebf986336fa70 (patch) | |
| tree | ccc5e857beeed7624bd8929bb9e51a1c37b54853 /arch/sparc/crypto/md5_asm.S | |
| parent | 775e0c69987a76d08900edbca857425f952c60fb (diff) | |
| download | linux-fa4dfedcc23a589f953750de54eebf986336fa70.tar.xz | |
sparc64: Add MD5 driver making use of the 'md5' instruction.
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/sparc/crypto/md5_asm.S')
| -rw-r--r-- | arch/sparc/crypto/md5_asm.S | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/sparc/crypto/md5_asm.S b/arch/sparc/crypto/md5_asm.S new file mode 100644 index 0000000..220b73b --- /dev/null +++ b/arch/sparc/crypto/md5_asm.S @@ -0,0 +1,70 @@ +#include <linux/linkage.h> +#include <asm/visasm.h> + +ENTRY(md5_sparc64_transform) + /* %o0 = digest, %o1 = data, %o2 = rounds */ + VISEntryHalf + ld [%o0 + 0x00], %f0 + ld [%o0 + 0x04], %f1 + andcc %o1, 0x7, %g0 + ld [%o0 + 0x08], %f2 + bne,pn %xcc, 10f + ld [%o0 + 0x0c], %f3 + +1: + ldd [%o1 + 0x00], %f8 + ldd [%o1 + 0x08], %f10 + ldd [%o1 + 0x10], %f12 + ldd [%o1 + 0x18], %f14 + ldd [%o1 + 0x20], %f16 + ldd [%o1 + 0x28], %f18 + ldd [%o1 + 0x30], %f20 + ldd [%o1 + 0x38], %f22 + + /* md5 */ + .word 0x81b02800 + + subcc %o2, 1, %o2 + bne,pt %xcc, 1b + add %o1, 0x40, %o1 + +5: + st %f0, [%o0 + 0x00] + st %f1, [%o0 + 0x04] + st %f2, [%o0 + 0x08] + st %f3, [%o0 + 0x0c] + retl + VISExitHalf +10: + alignaddr %o1, %g0, %o1 + + ldd [%o1 + 0x00], %f10 +1: + ldd [%o1 + 0x08], %f12 + ldd [%o1 + 0x10], %f14 + ldd [%o1 + 0x18], %f16 + ldd [%o1 + 0x20], %f18 + ldd [%o1 + 0x28], %f20 + ldd [%o1 + 0x30], %f22 + ldd [%o1 + 0x38], %f24 + ldd [%o1 + 0x40], %f26 + + faligndata %f10, %f12, %f8 + faligndata %f12, %f14, %f10 + faligndata %f14, %f16, %f12 + faligndata %f16, %f18, %f14 + faligndata %f18, %f20, %f16 + faligndata %f20, %f22, %f18 + faligndata %f22, %f24, %f20 + faligndata %f24, %f26, %f22 + + /* md5 */ + .word 0x81b02800 + + subcc %o2, 1, %o2 + fsrc1 %f26, %f10 + bne,pt %xcc, 1b + add %o1, 0x40, %o1 + + ba,a,pt %xcc, 5b +ENDPROC(md5_sparc64_transform) |