clarifying the state of drm-next-3.9 and next steps

[Matthew Macy]

 ---- On Thu, 14 Apr 2016 13:30:16 -0700 Arto Pekkanen <isoa at kapsi.fi> wrote ---- 
 > Can't promise anything for certain. I don't have a Radeon chip or a
 > spare rig right now, but I might get one later. If not, I might be able
 > to fix a cheap, older laptop with a Radeon GPU.
 > 
 > I've no experience systems level programming or anything like that. I
 > was thinking more about *coin mining or SETI at Home, you know, the kinda
 > entry level, brick layer stuff wannabe hackers run on their petty home
 > servers. I could try enabling AMD GPGPU option in some *coin miner in
 > the ports tree, or if there is no such miner app available try to port
 > one for FreeBSD, provided that the required libraries are made available
 > at the time.
 
The HSA/HCC code that I'm looking at only supports Fiji chips. An older Radeon won't buy you anything unless you can piece together the OpenCL bits.

-M

 
 > On 14.04.2016 22:08, Matthew Macy wrote:
 > > 
 > > 
 > >     Thanks for the heads up :)
 > > 
 > >     I am especially interested in the GPGPU support for AMDs, since this
 > >     would actually make FreeBSD x86 rigs very useful for power efficient
 > >     cluster computing. Thus far cheapest alternatives (on x86 hardware) have
 > >     been based on Windows or Linux.
 > > 
 > > 
 > >     Can I count you as a volunteer to help jmd with user level runtime
 > >     support? :D
 > > 
 > > 
 > >     -M
 > > 
 > > 
 > > 
 > >     On 12.04.2016 22:57, Matthew Macy wrote:
 > >     > There seems to be some confusion about the state of drm-next-3.9.
 > >     All the work is currently going on in jmd's fork of
 > >     freebsd-base-graphics:
 > >     >
 > >     > https://github.com/iotamudelta/freebsd-base-graphics
 > >     >
 > >     > The emphasis has been on bringing i915 and the drm code in
 > >     dev/drm2 closer to upstream as opposed to a simple driver refresh.
 > >     I'm currently implementing missing linuxkpi bits and hope to
 > >     actually be testing in the next week or so.
 > >     >
 > >     > As of this moment there is nothing available for general
 > >     consumption. I very much hope to have this phase done before code
 > >     freeze. I will update the list as soon as there is anything to test.
 > >     Until then, hold your horses.
 > >     >
 > >     > The next phase will be more interesting to anyone who isn't simply
 > >     waiting on bug fixes for Haswell support. My plan is to update DRM
 > >     to 4.6 and import amdgpu and amdkfd support. I would like to be able
 > >     to do GPGPU work using HIP/HSA on my AMD cards. An ETA on 4.6/amdgpu
 > >     support is difficult to come up with. But certainly it will _not_ be
 > >     any earlier than end of May.
 > >     >
 > >     > -M
 > >     >
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 > > 
 > 
 >