[PATCH 0/1][-next] drm/radeon: Move over to the ttm execbuf utilities

Thomas Hellstrom thellstrom at vmware.com
Wed Nov 17 11:56:38 PST 2010

On 11/17/2010 08:11 PM, Jerome Glisse wrote:
> On Wed, Nov 17, 2010 at 7:38 AM, Thomas Hellstrom<thellstrom at vmware.com>  wrote:
>> The patch is compile-tested ony and not very intrusive. It should be applied
>> on top of the latest TTM patches.
>> Besides reduced CPU-usage on SMP kernels, there is the benefit of using
>> shared code. Will also ease implementation of concurrent CS due to the
>> deadlock prevention mechanisms.
>> If time allows, I'll write a patch to do the same on Novueau, although
>> Novueau does things a little differently than the other TTM-aware drivers.
> Test on on rs780 and it seems to work properly, but i haven't really
> stress test it beside few games. I see no perf or CPU use improvement
> but it could very well be hidden by others cost.

Probably. I would have expected that a CPU-bound app, for example ipers 
if running at 100% CPU (before the patch) would've seen some frame rate 

> Note that we can't really have concurrent cs due to the way checking
> work. Anyway you could add my reviewed by.

Thanks, Jerome.

> Reviewed-by: Jerome Glisse<jglisse at redhat.com>
> Tested-by: Jerome Glisse<jglisse at redhat.com>

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