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authorMichael Ellerman <michael@ellerman.id.au>2012-09-13 23:00:49 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-01-10 14:43:45 +1100
commit323a6bf1d6f4ec7907d9d8aacb4ae9590f755dda (patch)
tree90b75e02d5d9eb74b424155ae726eef5e7f16ff3 /crypto
parent5c49985c21bba4d2f899e3a97121868a5c58a876 (diff)
downloadlinux-323a6bf1d6f4ec7907d9d8aacb4ae9590f755dda.tar.gz
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>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 4641d95651d3..8e6ae5ed8379 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -479,6 +479,13 @@ config CRYPTO_SHA1_ARM
 	  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