[parisc-linux] flush_tlb_all_local:

[Grant Grundler]

On Sun, Oct 12, 2003 at 04:07:50PM +0000, Joel Soete wrote:
>         ldo     R%REAL_MODE_PSW(%r1), %r1
>         mtctl   %r1, %cr22
>         mtctl   %r0, %cr17
>         mtctl   %r0, %cr17
> [...]
> 
> Why twice 'mtctl   %r0, %cr17'?

Good question. No clue. Looks like a brain fart since clearing it
 once should work unless there's a weird bug. I'll remove it.

> and also:
> [...]
> fitmanymiddle:                                  /* Loop if LOOP >= 2 */
>         ADDIB>          -1,%r31,fitmanymiddle   /* Adjusted inner loop 
> decr */
>         pitlbe          0(%sr1,%r28)
>         pitlbe,m        %arg1(%sr1,%r28)        /* Last pitlbe and addr 
> adjust */
> 
> Typicaly the function name is flush_..., so why do we 'purge' here?

AFAICT, because purge is sufficient.
It doesn't look like parisc even provides a FITBLE instruction.

thanks,
grant