Kanigeri, Hari had written, on 04/16/2010 06:46 AM, the following:
> Ivan,
> 
>> In the commit 702b94bff3c50542a6e4ab9a4f4cef093262fe65 (2.6.34) the
>> functions
>> dmac_inv_range and dmac_clean_range were removed.
>>
>> I'm wondering how to fix this in order to rebase to 2.6.34.
>>
>> Thanks
> 
Sharing with a wider audience my experiments:

> 2 options:
> 
> 1. Replace dmac_inv_range and dmac_clean_range functions with the new dma map 
 >and unmap functions. These are supposed to be the new functions to do 
the same
 > functionality, but in our limited testing some time ago, the 
dma_unmap function
 > wasn't invalidating the cache. You can check this at your end.

I tried doing this with pm-wip-opp(.34-rc4) branch in kevin's tree with 
the attached patch on SDP3430.

result log.txt - test results using just the userspace from
http://dev.omapzoom.org/?p=tidspbridge/userspace-dspbridge.git;a=summary
short story:
ping - pass
dmmcopy - fail - this is inline with what Hari mentioned - in short, 
using map/unmap as a direct replacement is a no-go,

> 
> 2. Revert the patch that deprecated these APIs to unblock you temporarily.
git revert 702b94bff3c50542a6e4ab9a4f4cef093262fe65 works.. but ofcourse 
would be a temporary hack for those interested in moving on..

Will leave Hari/Omar to summarize some of the ideas they have.

-- 
Regards,
Nishanth Menon