From: Matti Aarnio <matti.aarnio@zmailer.org>
To: Hua Ji <hji@netscreen.com>
Cc: Christoph Hellwig <hch@caldera.de>, David Pinedo <dp@fc.hp.com>,
linux-mm@kvack.org
Subject: Re: Running out of vmalloc space
Date: Fri, 18 May 2001 11:21:03 +0300 [thread overview]
Message-ID: <20010518112103.M5947@mea-ext.zmailer.org> (raw)
In-Reply-To: <A33AEFDC2EC0D411851900D0B73EBEF766DC8B@NAPA>; from hji@netscreen.com on Thu, May 17, 2001 at 02:58:29PM -0700
On Thu, May 17, 2001 at 02:58:29PM -0700, Hua Ji wrote:
> FYI:
> http://www.linux-mm.org/more_than_1GB.shtml
> The above url gives a good introduction for what we are discussing.
No. That is repeating Kanoj's patch logic. What got into 2.4 kernel
is slightly different.
But like Stephen wondered, is there truly need to map the cards entirely
into KERNEL space at all ? It is fairly trivial to create mmap() driver
function to map them to user-space process.
In display drivers I can understand a need to map parts (control registers,
including command pipeline insert points) of the cards to kernel, but not
all of the buffer spaces -- at least not all the time.
/Matti Aarnio
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next prev parent reply other threads:[~2001-05-18 8:21 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-17 21:58 Hua Ji
2001-05-18 8:21 ` Matti Aarnio [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-05-17 18:51 Hua Ji
2001-05-17 20:17 ` Andi Kleen
2001-05-17 17:13 David Pinedo
2001-05-17 17:39 ` Stephen C. Tweedie
2001-05-17 22:48 ` David Pinedo
2001-05-18 11:24 ` Andi Kleen
2001-05-18 11:53 ` Stephen C. Tweedie
2001-05-18 16:44 ` Christoph Hellwig
2001-05-22 23:15 ` David Pinedo
2001-05-23 9:35 ` Stephen C. Tweedie
2001-05-23 16:14 ` David Pinedo
2001-05-23 16:45 ` Stephen C. Tweedie
2001-05-26 5:13 ` Andrew Morton
2001-05-17 19:16 ` Matti Aarnio
2001-05-17 19:23 ` Christoph Hellwig
2001-05-17 20:10 ` Matti Aarnio
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