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From: rajesh on 6 May 2008 06:39
On May 6, 3:31 pm, Vladimir Vassilevsky <antispam_bo...(a)hotmail.com>
wrote:
> rajesh wrote:
> > "BlackFin doesn't have any means for providing cache and DMA
> > coherency.
> > Hence you generally can't DMA to the memory areas which are covered by
> > cache. "
>
> > who said this?
>
> Hint: cache snooping
>
> Go learn hardware, bad pupil.
>
> VLV

refer

http://docs.blackfin.uclinux.org/doku.php?id=2d-dma
From: Vladimir Vassilevsky on 6 May 2008 06:51


rajesh wrote:


> refer
>
> http://docs.blackfin.uclinux.org/doku.php?id=2d-dma

Nothing to look at. Linuxopathological gibberish.

VLV


From: rajesh on 6 May 2008 06:55
On May 6, 3:51 pm, Vladimir Vassilevsky <antispam_bo...(a)hotmail.com>
wrote:
> rajesh wrote:
> > refer
>
> >http://docs.blackfin.uclinux.org/doku.php?id=2d-dma
>
> Nothing to look at. Linuxopathological gibberish.
>
> VLV

Ok let me make it clear.

there is 64 K sram for data and 64k sram

64k sram is divided into two banks A and B of 32k each.

I have configured 16k from each bank as cache.
the remaining 16 k from each bank, i am using for my dma.

the was the case in which the above experiment was conducted.
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