sparc32: Kill off software 32-bit multiply/divide routines.
For the explicit calls to .udiv/.umul in assembler, I made a
mechanical (read as: safe) transformation. I didn't attempt
to make any simplifications.
In particular, __ndelay and __udelay can be simplified significantly.
Some of the %y reads are unnecessary and these routines have no need
any longer for allocating a register window, they can be leaf
functions.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/lib/udivdi3.S b/arch/sparc/lib/udivdi3.S
index b430f1f..24e0a35 100644
--- a/arch/sparc/lib/udivdi3.S
+++ b/arch/sparc/lib/udivdi3.S
@@ -60,8 +60,9 @@
bne .LL77
mov %i0,%o2
mov 1,%o0
- call .udiv,0
mov 0,%o1
+ wr %g0, 0, %y
+ udiv %o0, %o1, %o0
mov %o0,%o3
mov %i0,%o2
.LL77: