[Linux-ia64] Re: Write Combining (Write Coalescing) on memory mapped I/O on IA64.

Steffen Persvold
2001-08-30T06:39:06Z

David Mosberger wrote:
>
> >>>>> On Sat, 25 Aug 2001 16:40:24 +0200, Steffen Persvold <sp@scali.no> said:
>
> Steffen> Just a repost since I didn't get any feedback. I've also
> Steffen> copied some auhtors I found in asm/io.h. I appologize for
> Steffen> any inconvenience, but this issue is quite important to us.
>
> I didn't see anything fundamentally wrong with what you're trying to
> do, but I haven't looked at the code. Some debugging may be called
> for.
>

Do you think it's easier to set up a region which is mapped all the time, so
that ioremap_nocache() uses the already defined region 6 for uncached accesses
and ioremap() uses this new region with "Write Coalescing" enabled ? How should
I proceed to introduce such a region ?

Regards,
--
Steffen Persvold | Scali Computer AS | Try out the world's best
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