commit 45dfe237a865368929534ec75fe5f26c151c88d9
author David S. Miller <davem@davemloft.net> Tue Aug 28 20:55:19 2012 -0700
committer David S. Miller <davem@davemloft.net> Tue Aug 28 20:55:19 2012 -0700
tree fc79f99fad778fbec978932f9bf7d08e9410102d
parent 81658ad0d92306ceb271994b90cd49ffde10eeda

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>

arch/sparc/crypto/sha256_asm.S

diff --git a/arch/sparc/crypto/sha256_asm.S b/arch/sparc/crypto/sha256_asm.S
index 771ce26..9da84f5 100644
--- a/arch/sparc/crypto/sha256_asm.S
+++ b/arch/sparc/crypto/sha256_asm.S
@@ -70,7 +70,7 @@
 	.word	0x81b02840
 
 	subcc	%o2, 1, %o2
-	fsrc1	%f26, %f10
+	fsrc2	%f26, %f10
 	bne,pt	%xcc, 1b
 	 add	%o1, 0x40, %o1