Michel> There are a couple more, like pte_offset_kernel(),
Michel> pte_pfn(), pfn_to_page() and
Michel> flush_tlb_kernel_range(). Getting this working with 2.4
Michel> seems like a lot of work and/or ugly. :\
Just goes to show how quickly one gets used to 2.5... ;-)
Let me take a look at these.
>> (apart from PAGE_AGP, which is taken care of by the latest
>> patch).
Michel> Not quite, PAGE_KERNEL_NOCACHE isn't defined on all
Michel> architectures either.
OK, I believe the only other architecture that sets
"cant_use_aperture" is Alpha. I asked some Alpha folks several months
ago about my patch, but never got a conclusive answer. IIRC, on Alpha
the physical address itself determines cacheablity. If so, we can use
PAGE_KERNEL (which is universal) instead of PAGE_KERNEL_NOCACHE.
Clearly the patch needs to be tested on Alpha. The upside is that it
should let the Alpha folks get rid of a lot of ugliness in the
ioremap() code.
--david
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This archive was generated by hypermail 2b29 : Thu May 15 2003 - 22:00:42 EST