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linux/arch/sparc/crypto/sha512_asm.S

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sparc64: Add SHA384/SHA512 driver making use of the 'sha512' instruction. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-08-19 17:37:56 -07:00
#include <linux/linkage.h>
#include <asm/visasm.h>
sparc64: Avoid code duplication in crypto assembler. Put the opcode macros in a common header Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-31 12:11:51 -07:00
#include "opcodes.h"
sparc64: Add SHA384/SHA512 driver making use of the 'sha512' instruction. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-08-19 17:37:56 -07:00
ENTRY(sha512_sparc64_transform)
/* %o0 = digest, %o1 = data, %o2 = rounds */
VISEntry
ldd [%o0 + 0x00], %f0
ldd [%o0 + 0x08], %f2
ldd [%o0 + 0x10], %f4
ldd [%o0 + 0x18], %f6
ldd [%o0 + 0x20], %f8
ldd [%o0 + 0x28], %f10
andcc %o1, 0x7, %g0
ldd [%o0 + 0x30], %f12
bne,pn %xcc, 10f
ldd [%o0 + 0x38], %f14
1:
ldd [%o1 + 0x00], %f16
ldd [%o1 + 0x08], %f18
ldd [%o1 + 0x10], %f20
ldd [%o1 + 0x18], %f22
ldd [%o1 + 0x20], %f24
ldd [%o1 + 0x28], %f26
ldd [%o1 + 0x30], %f28
ldd [%o1 + 0x38], %f30
ldd [%o1 + 0x40], %f32
ldd [%o1 + 0x48], %f34
ldd [%o1 + 0x50], %f36
ldd [%o1 + 0x58], %f38
ldd [%o1 + 0x60], %f40
ldd [%o1 + 0x68], %f42
ldd [%o1 + 0x70], %f44
ldd [%o1 + 0x78], %f46
sparc64: Avoid code duplication in crypto assembler. Put the opcode macros in a common header Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-31 12:11:51 -07:00
SHA512
sparc64: Add SHA384/SHA512 driver making use of the 'sha512' instruction. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-08-19 17:37:56 -07:00
subcc %o2, 1, %o2
bne,pt %xcc, 1b
add %o1, 0x80, %o1
5:
std %f0, [%o0 + 0x00]
std %f2, [%o0 + 0x08]
std %f4, [%o0 + 0x10]
std %f6, [%o0 + 0x18]
std %f8, [%o0 + 0x20]
std %f10, [%o0 + 0x28]
std %f12, [%o0 + 0x30]
std %f14, [%o0 + 0x38]
retl
VISExit
10:
alignaddr %o1, %g0, %o1
ldd [%o1 + 0x00], %f18
1:
ldd [%o1 + 0x08], %f20
ldd [%o1 + 0x10], %f22
ldd [%o1 + 0x18], %f24
ldd [%o1 + 0x20], %f26
ldd [%o1 + 0x28], %f28
ldd [%o1 + 0x30], %f30
ldd [%o1 + 0x38], %f32
ldd [%o1 + 0x40], %f34
ldd [%o1 + 0x48], %f36
ldd [%o1 + 0x50], %f38
ldd [%o1 + 0x58], %f40
ldd [%o1 + 0x60], %f42
ldd [%o1 + 0x68], %f44
ldd [%o1 + 0x70], %f46
ldd [%o1 + 0x78], %f48
ldd [%o1 + 0x80], %f50
faligndata %f18, %f20, %f16
faligndata %f20, %f22, %f18
faligndata %f22, %f24, %f20
faligndata %f24, %f26, %f22
faligndata %f26, %f28, %f24
faligndata %f28, %f30, %f26
faligndata %f30, %f32, %f28
faligndata %f32, %f34, %f30
faligndata %f34, %f36, %f32
faligndata %f36, %f38, %f34
faligndata %f38, %f40, %f36
faligndata %f40, %f42, %f38
faligndata %f42, %f44, %f40
faligndata %f44, %f46, %f42
faligndata %f46, %f48, %f44
faligndata %f48, %f50, %f46
sparc64: Avoid code duplication in crypto assembler. Put the opcode macros in a common header Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-31 12:11:51 -07:00
SHA512
sparc64: Add SHA384/SHA512 driver making use of the 'sha512' instruction. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-08-19 17:37:56 -07:00
subcc %o2, 1, %o2
sparc64: Use fsrc2 instead of fsrc1 in sparc64 hash crypto drivers. On SPARC-T4 fsrc2 has 1 cycle of latency, whereas fsrc1 has 11 cycles. True story. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-28 20:55:19 -07:00
fsrc2 %f50, %f18
sparc64: Add SHA384/SHA512 driver making use of the 'sha512' instruction. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-08-19 17:37:56 -07:00
bne,pt %xcc, 1b
add %o1, 0x80, %o1
ba,a,pt %xcc, 5b
ENDPROC(sha512_sparc64_transform)
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