On Monday 25 June 2001  3:13 am, Jason R Thorpe wrote:
> On Mon, Jun 25, 2001 at 12:29:33AM +0100, Chris Gilbert wrote:
>  > Currently it actually looks like I should look into reducing the number
>  > of calls to splx, we call splvm a hell of a lot in the pmap, I might
>  > look at the locking down in the i386 version see if we can replace the
>  > splvm's with it. Another major gain would be to sort out pmap_release so
>  > it doesn't have to walk the whole of a the L1 table looking for items to
>  > free off (we should do that in pmap_remove)
>
> You should need almost no calls to splvm()/splx() in the pmap module,
> assuming you have a "real" pmap_kenter_pa()/pmap_kremove().

Currently we don't, they both call pmap_enter or pmap_remove.  Checking the 
pmap.c history we just had wrappers inserted at some point in the past so 
that the core kernel could do pmap_kenter and kremove with out checking for 
their existence.  I'll take a look at sorting that out (I think I've got them 
in a diff from richard).

Cheers,
Chris