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From: Lee Revell <rlrevell@joe-job.com>
To: William Park <opengeometry@yahoo.ca>
Cc: linux-kernel@vger.kernel.org
Subject: Re: DMA in PCI chipset -- module vs. compiled-in
Date: Sun, 05 Feb 2006 23:32:51 -0500	[thread overview]
Message-ID: <1139200372.2791.208.camel@mindpipe> (raw)
In-Reply-To: <20060206034312.GA2962@node1.opengeometry.net>

On Sun, 2006-02-05 at 22:43 -0500, William Park wrote:
> But, for experiment, I tried compiling in only the "generic" options,
> and moved all specific PCI chipsets as modules.  Hotplug loads the
> modules, but with all 'hdparm' options turned off.  When I tried turning
> on DMA, 

Generic and chipset specific support are not complementary, they are
mutually exclusive.  Having generic PCI IDE support enabled will prevent
the chipset specific support from working properly.

This is actually a problem in several areas of the kernel (it's the same
for "Generic RTC" vs. the normal RTC) - I don't think the name "Generic"
properly reflects that it will prevent more specific device support from
working.

Lee


  reply	other threads:[~2006-02-06  4:32 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-06  3:43 DMA in PCI chipset -- module vs. compiled-in William Park
2006-02-06  4:32 ` Lee Revell [this message]
2006-02-06 19:31   ` Ingo Oeser
2006-02-06 20:26     ` Lee Revell
2006-02-06 19:49   ` Alan Cox
2006-02-06 20:25     ` Lee Revell
2006-02-07  8:14       ` Bartlomiej Zolnierkiewicz
2006-02-07 11:07         ` Alan Cox
2006-02-07 11:14           ` Bartlomiej Zolnierkiewicz
2006-02-08  4:37             ` William Park
2006-02-07  2:04     ` William Park

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