From: Andrea Arcangeli <andrea@suse.de>
To: "David S. Miller" <davem@redhat.com>
Cc: Andrew Morton <andrewm@uow.edu.au>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Richard Henderson <rth@twiddle.net>,
linux-kernel@vger.kernel.org
Subject: Re: alpha iommu fixes
Date: Mon, 21 May 2001 13:00:34 +0200 [thread overview]
Message-ID: <20010521130034.L30738@athlon.random> (raw)
In-Reply-To: <3B07CF20.2ABB5468@uow.edu.au> <20010520163323.G18119@athlon.random> <15112.26868.5999.368209@pizda.ninka.net> <20010521034726.G30738@athlon.random> <15112.48708.639090.348990@pizda.ninka.net> <20010521105944.H30738@athlon.random> <15112.55709.565823.676709@pizda.ninka.net> <20010521115631.I30738@athlon.random> <15112.59880.127047.315855@pizda.ninka.net> <15112.60362.447922.780857@pizda.ninka.net>
In-Reply-To: <15112.60362.447922.780857@pizda.ninka.net>; from davem@redhat.com on Mon, May 21, 2001 at 03:19:54AM -0700
On Mon, May 21, 2001 at 03:19:54AM -0700, David S. Miller wrote:
> max bytes per bttv: max_gbuffers * max_gbufsize
> 64 * 0x208000 == 133.12MB
>
> 133.12MB * 8 PCI slots == ~1.06 GB
>
> Which is still only half of the total IOMMU space available per
> controller.
and it is the double of the iommu space that I am going to reserve for
pci dynamic mappings on the tsunami (right now it is 128Mbyte... and I'll
change to 512mbyte) also bttv is not doing that a large dma and by
default it only uses 2 buffers in the ring. bttv is not a good example
of what can really overflow the pci virtual address space in real life
(when I mentioned it it was only to point out it still uses
virt_to_bus), filling a pci bus with bttv cards sounds quite silly
anyways ;)
Andrea
next prev parent reply other threads:[~2001-05-21 11:03 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-18 17:46 alpha iommu fixes Ivan Kokshaysky
2001-05-19 2:34 ` Tom Vier
2001-05-19 10:48 ` Ivan Kokshaysky
2001-05-19 20:58 ` Tom Vier
2001-05-19 13:55 ` Andrea Arcangeli
2001-05-19 19:11 ` Ivan Kokshaysky
2001-05-20 2:40 ` Andrea Arcangeli
2001-05-20 12:12 ` Ivan Kokshaysky
2001-05-20 13:40 ` Andrea Arcangeli
2001-05-20 14:23 ` Gérard Roudier
[not found] ` <3B07AF49.5A85205F@uow.edu.au>
2001-05-20 13:49 ` Andrea Arcangeli
2001-05-20 14:05 ` Andrew Morton
2001-05-20 14:33 ` Andrea Arcangeli
2001-05-21 1:01 ` David S. Miller
2001-05-21 1:47 ` Andrea Arcangeli
2001-05-21 7:05 ` David S. Miller
2001-05-21 8:59 ` Andrea Arcangeli
2001-05-21 9:02 ` David S. Miller
2001-05-21 9:23 ` Andi Kleen
2001-05-21 9:30 ` David S. Miller
2001-05-21 9:42 ` Andi Kleen
2001-05-21 10:00 ` David S. Miller
2001-05-21 10:27 ` Andi Kleen
2001-05-21 10:34 ` David S. Miller
2001-05-21 10:42 ` Andi Kleen
2001-05-21 10:55 ` David S. Miller
2001-05-21 11:08 ` Andi Kleen
2001-05-21 11:36 ` David S. Miller
2001-05-21 11:41 ` Andi Kleen
2001-05-21 22:22 ` Jens Axboe
2001-05-21 10:02 ` Andrea Arcangeli
2001-05-21 10:17 ` Alan Cox
2001-05-21 9:56 ` Andrea Arcangeli
2001-05-21 10:11 ` David S. Miller
2001-05-21 10:19 ` David S. Miller
2001-05-21 11:00 ` Andrea Arcangeli [this message]
2001-05-21 11:04 ` David S. Miller
2001-05-21 11:27 ` Andrea Arcangeli
2001-05-21 12:16 ` Peter Rival
2001-05-21 13:55 ` Jonathan Lundell
2001-05-21 14:17 ` Ivan Kokshaysky
2001-05-21 15:47 ` Jonathan Lundell
2001-05-22 11:12 ` Chris Wedgwood
2001-05-22 17:51 ` Jonathan Lundell
2001-05-21 10:50 ` Andrea Arcangeli
2001-05-21 10:59 ` David S. Miller
2001-05-21 11:19 ` Andrea Arcangeli
2001-05-21 11:51 ` Ivan Kokshaysky
2001-05-21 17:53 ` Richard Henderson
2001-05-22 0:56 ` Andrea Arcangeli
2001-05-22 14:29 ` Andrea Arcangeli
2001-05-22 14:44 ` Ivan Kokshaysky
2001-05-22 15:00 ` Andrea Arcangeli
2001-05-22 20:28 ` Richard Henderson
2001-05-22 20:40 ` Jeff Garzik
2001-05-22 20:52 ` Andrea Arcangeli
2001-05-22 20:57 ` Richard Henderson
2001-05-22 21:09 ` Alan Cox
2001-05-22 20:48 ` Jonathan Lundell
2001-05-22 21:02 ` Richard Henderson
2001-05-22 21:10 ` Alan Cox
2001-05-22 21:17 ` Jonathan Lundell
2001-05-22 21:24 ` Alan Cox
2001-05-22 21:34 ` Jonathan Lundell
2001-05-22 21:08 ` Alan Cox
2001-05-22 15:18 ` Andrea Arcangeli
2001-05-22 15:55 ` Ivan Kokshaysky
2001-05-22 16:06 ` Andrea Arcangeli
2001-05-22 13:22 ` Andrea Arcangeli
2001-05-21 9:50 ` Gerd Knorr
2001-05-21 1:00 ` David S. Miller
2001-05-21 7:47 ` Alan Cox
2001-05-21 7:53 ` David S. Miller
2001-05-21 8:03 ` Alan Cox
2001-05-21 8:11 ` David S. Miller
2001-05-20 16:18 ` Andrea Arcangeli
2001-05-20 16:21 ` Andrew Morton
2001-05-20 16:44 ` Andrea Arcangeli
2001-05-20 16:54 ` Andrew Morton
2001-05-20 17:12 ` Andrea Arcangeli
2001-05-21 1:07 ` David S. Miller
2001-05-21 1:37 ` Andrea Arcangeli
2001-05-21 6:53 ` David S. Miller
2001-05-21 7:59 ` Alan Cox
2001-05-21 8:09 ` David S. Miller
2001-05-21 8:09 ` Alan Cox
2001-05-21 8:06 ` Chris Wedgwood
2001-05-23 0:05 ` Albert D. Cahalan
2001-05-22 13:11 ` Pavel Machek
2001-05-22 23:02 ` David S. Miller
2001-05-20 17:16 ` Jeff Garzik
2001-05-20 17:37 ` Andrea Arcangeli
2001-05-21 1:03 ` David S. Miller
2001-05-21 1:58 ` Richard Henderson
2001-05-20 1:11 ` Richard Henderson
2001-05-20 12:05 ` Ivan Kokshaysky
2001-05-21 0:37 ` Richard Henderson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20010521130034.L30738@athlon.random \
--to=andrea@suse.de \
--cc=andrewm@uow.edu.au \
--cc=davem@redhat.com \
--cc=ink@jurassic.park.msu.ru \
--cc=linux-kernel@vger.kernel.org \
--cc=rth@twiddle.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.