Re: __ioremap_at() in 2.4.0-test9-pre2

Hi,

OK.  On the 8xx, I currently rely on the effect that ioremap will
map virt->phys 1:1 before the kernel VM is initialized.

I'm curious, what needs ioremap before the VM is ready?

Mapping through BATs usually covers most of this, but more processors
arriving (the IBM 4xx) don't have BATs either so we rely on page
tables of some sort.

Shouldn't it be possible, to add such stuff directly to the hash table
and add the official mapping later?
BTW the whole mm stuff really needs a big cleanup, but I don't really want
to touch it, as I could only test this on my APUS machine, which has only
the CPU in common with the other machines.

bye, Roman


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