powerpc: Add a powerpc implementation of SHA-1
This patch adds a crypto driver which provides a powerpc accelerated
implementation of SHA-1, accelerated in that it is written in asm.
Original patch by Paul, minor fixups for upstream by moi.
Lightly tested on 64-bit with the test program here:
http://michael.ellerman.id.au/files/junkcode/sha1test.c
Seems to work, and is "not slower" than the generic version.
Needs testing on 32-bit.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 4641d95..8e6ae5e 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -479,6 +479,13 @@
SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
using optimized ARM assembler.
+config CRYPTO_SHA1_PPC
+ tristate "SHA1 digest algorithm (powerpc)"
+ depends on PPC
+ help
+ This is the powerpc hardware accelerated implementation of the
+ SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
+
config CRYPTO_SHA256
tristate "SHA224 and SHA256 digest algorithm"
select CRYPTO_HASH