On Sat, 12 Feb 2000, Richard Henderson wrote:
>
> This only helps block devices though. And they are the ones
> I would think you'd be least concerned about. This is basically
> just SCSI and IDE and floppy. We'll have converted all of the
> SCSI controlers that commonly appear on Alpha, and IDE and floppy
> are already done.
The block devices are the only ones that matter.
With the highmem approach, no other devices will ever see the
non-PCI-DMA'able pages, which is EXACTLY what we want.
That's the whole point of using the high-mem approach: the high pages are
still used, but they are used only for a controlled subset of the problems
space.
Linus
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This archive was generated by hypermail 2b29 : Tue Feb 15 2000 - 21:00:23 EST