On Tuesday 24 April 2007 08:03:06 Ashok Raj wrote:
> Floppy disk drivers dont work well with DMA remapping.
What is the problem? You can't allocate mappings <16MB?
> Its possible to
> extend the current use for x86_64, but the gain is very little. If someone
> feels compelled to clean this up, its up for grabs. Since these use 16M, we
> just provide a unity map for the ISA bridge device.
>
While it's probably not worth for the floppy there are other devices
with similar weird addressing limitations. Some generic handling of it
would be nice.
-Andi
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