[parisc-linux] [PATCH] fix SMP TLB optimisations

[James Bottomley]

On Sun, 2007-02-25 at 19:33 -0500, John David Anglin wrote:
> This one is less stable your previous change + reversion of tausq's
> SMP TLB opimization patch.  GCC build doesn't get far before wierdness
> occurs (strange characters being read from files):
> 
> gcc -c -g -fkeep-inline-functions      -gnatpg -gnata -I- -I. -Iada -I../../gcc/
> gcc/ada ../../gcc/gcc/ada/exp_ch6.adb -o ada/exp_ch6.o
> /tmp/ccaWBgD1.s: Assembler messages:
> /tmp/ccaWBgD1.s:2436: Error: Undefined register: '%s'.
> /tmp/ccaWBgD1.s:2436: Error: Field out of range [0..31] (-1).
> /tmp/ccaWBgD1.s:2436: Error: Undefined register: '%s'.
> /tmp/ccaWBgD1.s:2436: Error: Undefined register: '%s'.
> /tmp/ccaWBgD1.s:2436: Error: Field out of range [0..31] (-1).
> ...

Hmm ... perhaps there's a reason every other architecture's SMP
flush_tlb_mm() implementation is much more complicated than ours ...

James