Re: CONFIG_BIGMEM and rawio

Andrea Arcangeli (andrea@suse.de)
Fri, 3 Sep 1999 14:20:55 +0200 (CEST)


On Fri, 3 Sep 1999, Alan Cox wrote:

>Raw I/O from PCI/ISA space to PCI/ISA space needs bounce buffers on plenty
>of chipsets too

If the bounce buffer means to pass through an additional piece of
regular-memory, then let the bounce buffer to be the page-cache and don't
use raw-io in first place.

Andrea

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