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| author | Nicolas Pitre <nico@cam.org> | 2005-10-28 15:26:40 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-10-28 15:26:40 +0100 |
| commit | c09f98271f685af349d3f0199360f1c0e85550e0 (patch) | |
| tree | 2e8a393d76e386ff64af2a786cf5baf370f3823b /arch/arm/lib/Makefile | |
| parent | 0b7cd62ecdc1f09b7df4608a3fee644b1c27985b (diff) | |
| download | lwn-c09f98271f685af349d3f0199360f1c0e85550e0.tar.gz lwn-c09f98271f685af349d3f0199360f1c0e85550e0.zip | |
[ARM] 2930/1: optimized sha1 implementation for ARM
Patch from Nicolas Pitre
Here's an ARM assembly SHA1 implementation to replace the default C
version. It is approximately 50% faster than the generic C version. On
an XScale processor running at 400MHz:
generic C version: 9.8 MB/s
my version: 14.5 MB/s
This code is useful to quite a few callers in the tree:
crypto/sha1.c: sha_transform(sctx->state, sctx->buffer, temp);
crypto/sha1.c: sha_transform(sctx->state, &data[i], temp);
drivers/char/random.c: sha_transform(buf, (__u8 *)r->pool+i, buf + 5);
drivers/char/random.c: sha_transform(buf, (__u8 *)data, buf + 5);
net/ipv4/syncookies.c: sha_transform(tmp + 16, (__u8 *)tmp, tmp + 16 + 5);
Signed-off-by: Nicolas Pitre <nico@cam.org>
Seems to work fine on big-endian as well.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/lib/Makefile')
| -rw-r--r-- | arch/arm/lib/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile index 8725d63e4219..71e5b99e519e 100644 --- a/arch/arm/lib/Makefile +++ b/arch/arm/lib/Makefile @@ -11,7 +11,7 @@ lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \ strnlen_user.o strchr.o strrchr.o testchangebit.o \ testclearbit.o testsetbit.o uaccess.o getuser.o \ putuser.o ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \ - ucmpdi2.o lib1funcs.o div64.o \ + ucmpdi2.o lib1funcs.o div64.o sha1.o \ io-readsb.o io-writesb.o io-readsl.o io-writesl.o ifeq ($(CONFIG_CPU_32v3),y) |