From: "Gleb O. Raiko" <raiko@niisi.msk.ru>
To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Cc: Keith Owens <kaos@ocs.com.au>,
"'linux-mips@oss.sgi.com'" <linux-mips@oss.sgi.com>
Subject: Re: DBE table ordering
Date: Fri, 19 Apr 2002 12:28:08 +0400 [thread overview]
Message-ID: <3CBFD518.C413C72A@niisi.msk.ru> (raw)
In-Reply-To: Pine.GSO.3.96.1020418195601.5266A-100000@delta.ds2.pg.gda.pl
Maciej,
"Maciej W. Rozycki" wrote:
>
> On Thu, 18 Apr 2002, Gleb O. Raiko wrote:
>
> > I dont't know about other tables and other arches. Perhaps, they need
> > sorting of some tables. But, definetely, sorting isn't required for mips
> > dbe/unaligned access tables.
>
> Still it can be done for consistency. It won't hurt, will it?
>
Sure, it won't hurt performance. Just looks stupid in this place.
Even if we'll add something like dbe_memcpy, which will require a lot of
addresses in the table in order ot get adequate performance, it'll be
still stupid. And answer your next question, dbe_memcpy is needed for
accesses to busses like VME where Bus{Abort,Error,Fail} are quite legal
and traditionally all of them are traslated to DBE.
Regards,
Gleb.
next prev parent reply other threads:[~2002-04-19 8:28 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-17 22:21 DBE table ordering Mark Huang
2002-04-18 3:55 ` Keith Owens
2002-04-18 6:39 ` Mark Huang
2002-04-18 6:39 ` Mark Huang
2002-04-18 6:51 ` Keith Owens
2002-04-18 6:51 ` Keith Owens
2002-04-18 9:37 ` Gleb O. Raiko
2002-04-18 9:49 ` Keith Owens
2002-04-18 12:03 ` Gleb O. Raiko
2002-04-18 17:59 ` Maciej W. Rozycki
2002-04-19 8:28 ` Gleb O. Raiko [this message]
2002-04-19 12:19 ` Maciej W. Rozycki
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