From: Dan Malek <dan@mvista•com>
To: paulus@linuxcare•com.au
Cc: Gabriel Paubert <paubert@iram•es>,
tom_gall@vnet•ibm.com, Tom Gall <tgall@rochcivictheatre•org>,
Troy Benjegerdes <hozer@drgw•net>,
linuxppc-commit@hq•fsmlabs.com,
linuxppc-dev <linuxppc-dev@lists•linuxppc.org>
Subject: Re: context overflow
Date: Tue, 06 Feb 2001 17:29:30 -0500 [thread overview]
Message-ID: <3A807ACA.E23A7B47@mvista.com> (raw)
In-Reply-To: 14976.29084.376745.660244@tango.linuxcare.com.au
Paul Mackerras wrote:
> > That's not what MMU context means, well at least the way I have
> > learned to use it in the past. An MMU context is supposed to represent
> > the virtual mapping of memory objects. Linux has memory objects
>
> No, an MMU context represents an address space, or more precisely the
> set of virtual to physical mappings in an address space,...
Isn't that what I just said above :-)? Your original message said
you want to map some context to just a few of the VSIDs, that is what
I said isn't correct.
> On machines like the x86 where the MMU doesn't know about MMU contexts
> you have to basically context-switch the whole MMU including the TLB.
> Fortunately we don't have to do that. :)
Well, an MMU doesn't have to know about contexts (or have something
called a 'context register') for you to implement MMU context management.
-- Dan
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2001-02-06 22:29 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-20 2:27 context overflow Dan Malek
2001-01-22 4:28 ` Troy Benjegerdes
2001-01-22 4:39 ` Tom Gall
2001-01-22 18:10 ` Dan Malek
2001-01-22 18:55 ` tom_gall
2001-01-22 19:59 ` Dan Malek
2001-01-22 22:08 ` tom_gall
2001-01-23 0:10 ` Dan Malek
2001-01-23 10:00 ` Gabriel Paubert
2001-01-23 18:21 ` Dan Malek
2001-02-06 10:55 ` Paul Mackerras
2001-02-06 21:11 ` Dan Malek
2001-02-06 21:50 ` Paul Mackerras
2001-02-06 22:29 ` Dan Malek [this message]
2001-02-06 22:45 ` Paul Mackerras
2001-02-06 10:50 ` Paul Mackerras
2001-02-06 21:32 ` Dan Malek
2001-02-06 22:08 ` Paul Mackerras
2001-02-06 23:14 ` Dan Malek
2001-02-07 0:23 ` Paul Mackerras
2001-02-07 18:02 ` Dan Malek
2001-02-08 0:48 ` Paul Mackerras
2001-02-08 1:39 ` Frank Rowand
2001-02-08 19:00 ` David Edelsohn
2001-02-08 20:53 ` Roman Zippel
2001-02-08 21:14 ` David Edelsohn
2001-02-08 23:23 ` Roman Zippel
2001-02-08 23:48 ` Cort Dougan
2001-02-08 21:28 ` Cort Dougan
2001-02-08 22:08 ` David Edelsohn
2001-02-08 22:26 ` Cort Dougan
2001-02-08 23:17 ` David Edelsohn
2001-02-08 23:27 ` Cort Dougan
2001-02-08 23:28 ` Gabriel Paubert
2001-02-09 9:58 ` Paul Mackerras
2001-02-09 10:57 ` Gabriel Paubert
2001-02-09 11:26 ` Paul Mackerras
2001-02-09 10:49 ` Paul Mackerras
2001-02-07 9:18 ` Roman Zippel
2001-02-07 17:46 ` Dan Malek
2001-02-07 18:39 ` Roman Zippel
2001-02-07 21:16 ` Gabriel Paubert
2001-02-08 0:34 ` Paul Mackerras
2001-01-22 4:55 ` Larry McVoy
2001-01-22 6:15 ` Troy Benjegerdes
2001-01-23 1:12 ` Frank Rowand
2001-01-23 1:20 ` Dan Malek
2001-01-23 2:12 ` Frank Rowand
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