[parisc-linux] [patch 2/2] backport of sba sg list management to ccio-dma

Joel Soete soete.joel at scarlet.be
Sat Dec 8 11:45:01 MST 2007


Grant,

Just a small update:

Grant Grundler wrote:
> On Tue, Nov 27, 2007 at 01:48:32PM +0100, Joel Soete wrote:
[snip]
>> That said I discover a difference between my d380 and c110 config:
>> for c110 no CONFIG_EISA support,
>> for d380 CONFIG_EISA yes
> 
> EISA introduces a different IOMMU that we haven't written any code for.
> We need the "WAX ERS" IIRC.
> parisc-linux currently does not support DMA by EISA devices.
> 
> ...
>> So make a difference in HINT_STOP_MOST value.
>> Anyway, may be could it help to delay also a bit issue on c110 as on d380 (may
>> be enough to re-install the system?)
> 
> You can try it and see if it helps.

I done this test but it doesn't help,
so imho, some operation occure more frequently in ccio-dma on system with small memory but what??? (not kernel trace tool on 
p-l ;-( )

[snip]

Cheers,
	J.


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