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Date: Thu, 03 Jul 2003 16:49:03 -0500
From: "Alan L. Cox" <alc@imimic.com>
Organization: iMimic Networking, Inc.
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To: Marcel Moolenaar <marcel@xcllnt.net>
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cc: Alan Cox <alc@FreeBSD.org>
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Subject: Re: cvs commit: src/sys/alpha/alpha pmap.c src/sys/amd64/amd64pmap.c 
 src/sys/i386/i386 pmap.c src/sys/ia64/ia64 pmap.c 
 src/sys/powerpc/powerpc pmap.c src/sys/sparc64/sparc64 pmap.c src/sys/vm 
 pmap.h vm_map.c
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Marcel Moolenaar wrote:
> 
> On Thu, Jul 03, 2003 at 01:18:02PM -0700, Alan Cox wrote:
> > alc         2003/07/03 13:18:02 PDT
> >
> >   This commit moves the vnode-backed case into the (relatively) new
> >   function vm_map_pmap_enter().  On amd64 and i386, this commit only
> >   amounts to code rearrangement.  On alpha and ia64, the new machine
> >   independent (MI) implementation of the vnode case is smaller and more
> >   efficient than their pmap-based implementations.
> 
> Top!
> 
> (dutch slang: means great or excellent :-)
> 

Thanks, there is one piece of code that I actually intend to push down
into the MD code: the sfbufs allocator that is used to provide a kernel
virtual address for sendfile() and the zero-copy sockets code.  This
will benefit the 64-bit architectures in that they can then use their
direct virtual-to-physical mappings, avoiding page-by-page mapping and
TLB shootdown overheads.

Regards,
Alan