[PATCH] ARM: fix highmem with VIPT cache and DMA

[Nicolas Pitre]

On Sun, 25 Apr 2010, Allen Pais wrote:

> > >   But currently we are facing issues with test cases such
> > > as AV Playback, mp3 play, image capture, camera 
> > > capture+mpeg4 encode. 
> > > 
> > >   Am not sure what's causing this break, any pointer would be
> > > helpful.
> 
> > To be clear, are you saying that those test cases are failing with 
> > highmem only?
> 
> Yes, when Highmem is enabled, these(testcases) failures
> are what we are observing.

Let's take a simple one: mp3 playback.  What exactly is happening when 
highmem is enabled?


Nicolas