From: Daniel Phillips <phillips@arcor.de>
To: davidm@hpl.hp.com, David Mosberger <davidm@napali.hpl.hp.com>,
"David S. Miller" <davem@redhat.com>
Cc: davidm@hpl.hp.com, davidm@napali.hpl.hp.com, dmo@osdl.org,
axboe@suse.de, _deepfire@mail.ru, linux-kernel@vger.kernel.org
Subject: Re: DAC960 in 2.5.38, with new changes
Date: Mon, 23 Sep 2002 23:31:13 +0200 [thread overview]
Message-ID: <E17tanS-0003cl-00@starship> (raw)
In-Reply-To: <15759.34428.608321.969391@napali.hpl.hp.com>
On Monday 23 September 2002 23:24, David Mosberger wrote:
> >>>>> On Mon, 23 Sep 2002 13:57:08 -0700 (PDT), "David S. Miller" <davem@redhat.com> said:
>
> >> On many platforms, two consequetive __raw_writel()'s might even
> >> combine to an atomic 64-bit store to PCI space. :-)
>
> Yes, but that's no guarantee.
>
> >> I don't think the proposed 32-bit behavior is off the mark, and
> >> anyways x86 can actually make the 64-bit store I believe if it
> >> wants at least on more recent processors.
>
> Surely we wouldn't want to define a new API that can't be supported on
> all 32-bit platforms, no? Perhaps writeq_nonatomic()?
Why attempt to write 8 bytes on ia32 when only 4 are needed?
--
Daniel
next prev parent reply other threads:[~2002-09-23 21:31 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-23 19:04 DAC960 in 2.5.38, with new changes Dave Olien
2002-09-23 19:19 ` David Mosberger
2002-09-23 20:40 ` David S. Miller
2002-09-23 20:53 ` David Mosberger
2002-09-23 20:57 ` David S. Miller
2002-09-23 21:24 ` David Mosberger
2002-09-23 21:17 ` David S. Miller
2002-09-23 21:32 ` David Mosberger
2002-09-23 21:28 ` David S. Miller
2002-09-23 21:31 ` Daniel Phillips [this message]
2002-09-23 21:33 ` David Mosberger
2002-09-23 21:28 ` David S. Miller
2002-09-23 21:40 ` Daniel Phillips
2002-09-23 21:45 ` David Mosberger
2002-09-23 20:44 ` Daniel Phillips
2002-09-23 20:54 ` David S. Miller
2002-09-24 16:54 ` Dave Olien
2002-09-24 17:11 ` David Mosberger
2002-09-24 17:28 ` Dave Olien
2002-09-24 18:21 ` David Mosberger
2002-09-24 18:25 ` Dave Olien
2002-09-24 19:12 ` David Mosberger
2002-09-24 18:45 ` Dave Olien
2002-09-24 17:50 ` Daniel Phillips
2002-09-24 18:27 ` David Mosberger
2002-09-24 17:39 ` Daniel Phillips
2002-09-25 22:20 ` DAC960, documentation links Daniel Phillips
2002-09-25 22:23 ` Daniel Phillips
2002-09-26 0:02 ` Mr. James W. Laferriere
2002-09-26 16:13 ` DAC960 in 2.5.38, with new changes Alan Cox
2002-09-24 17:45 ` Daniel Phillips
2002-09-25 21:42 ` davide.rossetti
2002-09-23 20:39 ` Daniel Phillips
2002-09-23 21:41 ` Dave Olien
2002-09-23 21:53 ` Daniel Phillips
2002-09-23 22:03 ` Dave Olien
2002-09-23 22:22 ` Daniel Phillips
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