[Mesa-dev] GalliumCompute / OpenCL on Radeon HD7790

[Aaron Watry]

I'm not sure about debian's upstream packages, but at least Ubuntu's
xorg-edgers PPA has llvm-3.4 packages available and I suspect that a
variant of those will end up in the 14.04 LTS release. I've
successfully built libclc and Mesa w/ OpenCL support against those
packages after some massaging (need to create a few symlinks which are
missing because the packages don't install /usr/bin/llvm-config, but
instead installs llvm-config-3.4). But as I said, I haven't used
Debian's packages directly (and I usually build most things directly
from source).

--Aaron


On Mon, Jan 20, 2014 at 2:13 PM, Tom Stellard <tom at stellard.net> wrote:
> On Mon, Jan 20, 2014 at 11:14:18AM -0800, ian_bruce at fastmail.net wrote:
>> On Mon, 20 Jan 2014 08:00:39 -0800
>> Tom Stellard <tom at stellard.net> wrote:
>>
>> >> http://dri.freedesktop.org/wiki/GalliumCompute/
>>
>> >> Could anybody clarify whether the information on the wiki page should
>> >> apply to a Radeon HD7790 card? Could the wiki be updated to be more
>> >> specific about which GPUs it is relevant to?
>> >
>> > Sea Islands GPUs are supported. I've added this to the wiki page.
>>
>> Thanks.
>>
>> Let me then ask another question: since the new Radeon R9-280X, R9-270X,
>> and R7-260X cards are supposed to be based on "Southern/Sea Islands"
>> GPUs, would it be safe to assume that they would also be supported?
>>
>
> Yes, they should all be work too, but Southern/Sea Islands OpenCL support
> is still in the early stages, so you will have to test it out to see what
> works for you.
>
>> http://www.anandtech.com/show/7400/the-radeon-r9-280x-review-feat-asus-xfx
>>
>> The "engineering vs marketing names" link on the wiki page should be
>> updated:
>>
>> http://www.x.org/wiki/RadeonFeature/#index5h2
>>
>> And perhaps that table should itself be updated to include the new
>> Rx-2yy GPUs, especially if those <= 280 can be considered equivalent to
>> the HD7000 series.
>>
>> >> Also, could the build instructions comment on whether packages from
>> >> the Linux distribution (Debian?) might do as well? Or would those not
>> >> have been built with options like
>> >> "--enable-experimental-targets=R600", "--with-gallium-drivers=r600",
>> >> and "--enable-opencl"?
>> >
>> > If you are using Gentoo, then it is possible to enable opencl support
>> > when installing the -9999 package of mesa. I'm not sure if any other
>> > distros provide packages with OpenCL enabled.
>>
>>
>> On Mon, 20 Jan 2014 11:49:40 +0900
>> Michel Dänzer <michel at daenzer.net> wrote:
>>
>> > The Debian Mesa packages aren't built with --enable-opencl yet, there
>> > are Debian bug reports requesting that.
>>
>> Is Mesa the only issue? Is it likely that distribution packages for
>> LLVM, Clang, and libclc would be sufficient, or would they require
>> custom builds as well?
>>
>
> Especially for newer hardware, you would need to custom build the latest
> code of these packages for best results.  The packages provided by
> distributions are probably too old to do anything useful with OpenCL.
>
> -Tom
>
>> Again, please CC me on any replies.
>>
>>
>> -- Ian Bruce
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