From: Andi Kleen <ak@suse.de>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Andrew Morton <akpm@osdl.org>,
Ravikiran G Thirumalai <kiran@scalex86.org>,
linux-kernel@vger.kernel.org, discuss@x86-64.org,
tglx@linutronix.de, shai@scalex86.org
Subject: Re: x86_64: 2.6.14-rc4 swiotlb broken
Date: Mon, 17 Oct 2005 18:26:40 +0200 [thread overview]
Message-ID: <200510171826.40711.ak@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0510170901460.23590@g5.osdl.org>
On Monday 17 October 2005 18:02, Linus Torvalds wrote:
> On Mon, 17 Oct 2005, Andi Kleen wrote:
> > On Monday 17 October 2005 17:27, Linus Torvalds wrote:
> > > On Mon, 17 Oct 2005, Andi Kleen wrote:
> > > > The patch is actually not quite correct - in theory node 0 could be
> > > > too small to contain the full swiotlb bounce buffers.
> > >
> > > Is node 0 guaranteed to be all low-memory? What if it allocates stuff
> > > at the end of memory on NODE(0)?
> >
> > This is 64bit ... only low memory.
>
> Ehh.. No there isn't.
>
> PCI DMA isn't magically 64-bit, even on your Opteron.
>
> So low memory in this case is anything < 32 bits. How many bits the CPU
> has is immaterial.
That's completely new terminology. We always called all of ZONE_NORMAL low
memory.
The 32bit DMA zone had no special name before the ZONE_DMA32 patches.
With that they are called dma32 zone.
-Andi
next prev parent reply other threads:[~2005-10-17 16:26 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-17 9:36 x86_64: 2.6.14-rc4 swiotlb broken Ravikiran G Thirumalai
2005-10-17 9:50 ` Andrew Morton
2005-10-17 9:53 ` Andi Kleen
2005-10-17 10:54 ` Yasunori Goto
2005-10-17 15:27 ` Linus Torvalds
2005-10-17 15:37 ` Ravikiran G Thirumalai
2005-10-17 15:40 ` Andi Kleen
2005-10-17 15:56 ` Muli Ben-Yehuda
2005-10-17 16:02 ` Andi Kleen
2005-10-17 18:53 ` [discuss] " Russell King
2005-10-17 16:02 ` Linus Torvalds
2005-10-17 16:26 ` Andi Kleen [this message]
2005-10-17 16:42 ` Linus Torvalds
2005-10-17 17:09 ` Andi Kleen
2005-10-17 17:52 ` Ravikiran G Thirumalai
2005-10-17 18:08 ` [discuss] " Andi Kleen
2005-10-17 18:27 ` Muli Ben-Yehuda
2005-10-17 18:32 ` Andi Kleen
2005-10-17 18:45 ` Muli Ben-Yehuda
2005-10-17 19:04 ` Linus Torvalds
2005-10-17 19:09 ` Andi Kleen
2005-10-17 19:15 ` Arjan van de Ven
2005-10-17 19:47 ` Ravikiran G Thirumalai
2005-10-17 23:50 ` David Lang
2005-10-18 2:29 ` Yasunori Goto
2005-10-18 3:20 ` Ravikiran G Thirumalai
2005-10-18 4:28 ` Yasunori Goto
2005-10-18 6:13 ` Ravikiran G Thirumalai
2005-10-18 10:09 ` Yasunori Goto
2005-10-18 18:51 ` Ravikiran G Thirumalai
2005-10-19 17:18 ` Jon Mason
2005-10-20 7:27 ` Andi Kleen
2005-10-17 18:38 ` Ravikiran G Thirumalai
2005-10-17 18:20 ` Christoph Lameter
2005-10-17 19:04 ` Alex Williamson
2005-10-17 19:26 ` Ravikiran G Thirumalai
2005-10-17 19:52 ` Alex Williamson
2005-10-17 15:30 ` Ravikiran G Thirumalai
2005-10-17 15:43 ` Andi Kleen
2005-10-17 20:44 ` Andrew Morton
2005-10-17 21:11 ` Linus Torvalds
2005-10-18 0:16 ` Ravikiran G Thirumalai
2005-10-18 8:23 ` Andi Kleen
2005-10-18 19:07 ` [discuss] " Ravikiran G Thirumalai
2005-10-18 15:48 ` Linus Torvalds
2005-10-18 15:50 ` Linus Torvalds
2005-10-18 19:54 ` [discuss] " Ravikiran G Thirumalai
2005-10-18 21:28 ` Alex Williamson
2005-10-18 21:53 ` Ravikiran G Thirumalai
2005-10-18 22:04 ` Alex Williamson
2005-10-18 22:37 ` Alex Williamson
2005-10-18 23:22 ` Ravikiran G Thirumalai
2005-10-19 1:22 ` Alex Williamson
2005-10-19 2:02 ` Alex Williamson
2005-10-19 12:47 ` Yasunori Goto
2005-10-19 14:19 ` Alex Williamson
2005-10-19 18:07 ` Ravikiran G Thirumalai
2005-10-19 20:45 ` Linus Torvalds
2005-10-19 22:52 ` Ravikiran G Thirumalai
2005-10-20 0:51 ` Yasunori Goto
2005-10-20 7:45 ` Andi Kleen
2005-10-18 22:47 ` Ravikiran G Thirumalai
2005-10-17 10:02 ` Muli Ben-Yehuda
2005-10-17 19:07 ` Tony Luck
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=200510171826.40711.ak@suse.de \
--to=ak@suse.de \
--cc=akpm@osdl.org \
--cc=discuss@x86-64.org \
--cc=kiran@scalex86.org \
--cc=linux-kernel@vger.kernel.org \
--cc=shai@scalex86.org \
--cc=tglx@linutronix.de \
--cc=torvalds@osdl.org \
/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.