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/divdi3.S b/arch/sparc/lib/divdi3.S
index d74bc09..9614b48 100644
--- a/arch/sparc/lib/divdi3.S
+++ b/arch/sparc/lib/divdi3.S
@@ -19,7 +19,6 @@
.text
.align 4
- .global .udiv
.globl __divdi3
__divdi3:
save %sp,-104,%sp
@@ -83,8 +82,9 @@
bne .LL85
mov %i0,%o2
mov 1,%o0
- call .udiv,0
mov 0,%o1
+ wr %g0, 0, %y
+ udiv %o0, %o1, %o0
mov %o0,%o4
mov %i0,%o2
.LL85:
