Re: PCI timings in kernel???
Mark Lord (mlord@pobox.com)
Tue, 17 Nov 1998 03:55:58 +0000
> We really should NOT have PCI chipset-tuning code in the kernel
> UNLESS it is required to boot Linux (very unlikely).
..
> If it is about PCI latency timer settings, you must then implement
> some piece of code in the kernel such that you can guarentee all DMA
> activity to/from the controller has ceased around the user request to
> change the PCI latency timer value. At least last time I checked,
> this was necessary.
Not quite what I had in mind. But as it happens, exclusive access
to the IDE controller chip is indeed guaranteed for such updates.
The original posting had to due with an upcoming explosion
in kernel content..
--
mlord@pobox.com
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