From: "David S. Miller" <davem@redhat.com>
To: davidm@hpl.hp.com, davidm@napali.hpl.hp.com
Cc: phillips@arcor.de, 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 14:28:21 -0700 (PDT) [thread overview]
Message-ID: <20020923.142821.50184745.davem@redhat.com> (raw)
In-Reply-To: <15759.35002.179075.973994@napali.hpl.hp.com>
From: David Mosberger <davidm@napali.hpl.hp.com>
Date: Mon, 23 Sep 2002 14:33:46 -0700
>>>>> On Mon, 23 Sep 2002 23:31:13 +0200, Daniel Phillips <phillips@arcor.de> said:
Daniel> Why attempt to write 8 bytes on ia32 when only 4 are needed?
Even on ia32 you'll need 8 bytes if the controller is operated in DAC
mode (which is what you want for a machine with >4GB of memory), no?
Right. But if we know the top 32-bits will always be zero (f.e. if
CONFIG_HIGHMEM is disabled on x86) one might want to optimize this
to avoid the first 32-bit store.
next prev parent reply other threads:[~2002-09-23 21:34 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-23 19:04 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
2002-09-23 21:33 ` David Mosberger
2002-09-23 21:28 ` David S. Miller [this message]
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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