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| author | David S. Miller <davem@davemloft.net> | 2012-05-15 20:23:01 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-05-15 20:23:47 +0200 |
| commit | 1b35a57b1c1781f0fc8fc554f732b3a5408c5244 (patch) | |
| tree | 80e5616798e0dc5ec138f020e6aa9ae482378462 /arch/sparc/lib/udivdi3.S | |
| parent | sparc32: Build kernel with -mcpu=v8 (diff) | |
| download | linux-1b35a57b1c1781f0fc8fc554f732b3a5408c5244.tar.xz linux-1b35a57b1c1781f0fc8fc554f732b3a5408c5244.zip | |
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>
Diffstat (limited to 'arch/sparc/lib/udivdi3.S')
| -rw-r--r-- | arch/sparc/lib/udivdi3.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/sparc/lib/udivdi3.S b/arch/sparc/lib/udivdi3.S index b430f1f0ef62..24e0a355e2e8 100644 --- a/arch/sparc/lib/udivdi3.S +++ b/arch/sparc/lib/udivdi3.S @@ -60,8 +60,9 @@ __udivdi3: 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: |