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| author | David S. Miller <davem@davemloft.net> | 2012-08-19 15:41:53 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-08-20 15:08:49 -0700 |
| commit | 4ff28d4ca93b182b8e181b1e1b1d03fd09fdaeb4 (patch) | |
| tree | 8835512dee7ae0e845b8ee2c1f42894b2d5f9a79 /arch/sparc/crypto/sha1_asm.S | |
| parent | bab96bda4431602213deb53723d13f73f5308a20 (diff) | |
sparc64: Add SHA1 driver making use of the 'sha1' 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/sha1_asm.S')
| -rw-r--r-- | arch/sparc/crypto/sha1_asm.S | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/sparc/crypto/sha1_asm.S b/arch/sparc/crypto/sha1_asm.S new file mode 100644 index 00000000000..d2147eb054c --- /dev/null +++ b/arch/sparc/crypto/sha1_asm.S @@ -0,0 +1,72 @@ +#include <linux/linkage.h> +#include <asm/visasm.h> + +ENTRY(sha1_sparc64_transform) + /* %o0 = digest, %o1 = data, %o2 = rounds */ + VISEntryHalf + ld [%o0 + 0x00], %f0 + ld [%o0 + 0x04], %f1 + ld [%o0 + 0x08], %f2 + andcc %o1, 0x7, %g0 + ld [%o0 + 0x0c], %f3 + bne,pn %xcc, 10f + ld [%o0 + 0x10], %f4 + +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 + + /* sha1 */ + .word 0x81b02820 + + 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] + st %f4, [%o0 + 0x10] + 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 + + /* sha1 */ + .word 0x81b02820 + + subcc %o2, 1, %o2 + fsrc1 %f26, %f10 + bne,pt %xcc, 1b + add %o1, 0x40, %o1 + + ba,a,pt %xcc, 5b +ENDPROC(sha1_sparc64_transform) |