[Linux-ATM-General] Re: ATM driver for 8260 (linux 2.4.x)

[Wolfgang Denk]

In message <20020129142321.38639.qmail at web9706.mail.yahoo.com> you wrote:
>
> For some reason the interrupt handler reads old
> values, although the CPM puts new data. (I checked it

Sounds like a cache problem...

> using JTAG). It seems
> like the old data are kept on buffers and are not
> refreshed. Unfortunetely i did what Hofrat saied,
> but it doesn't work. Is there a function for forcing
> refresh? flush_tlb or flush_dcache perhaps?

flush_dcache_range().

> > > Also, in the original driver Alex used the
> > > mm_alloc_uncached_pages function, but i have
> > replased
> > > it with kmalloc(size, GFP_KERNEL). Is it correct?

Hint! Hint!

Hope this helps,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
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