[Beignet] Haswell-ULT Support?

[Zhigang Gong]

Then this may be caused by another issue also documented in the README.md if
you are using Linux kernel 3.15 or 3.16.
If you also tried this, please let us know. Thanks.
"
* Almost all unit tests fail on Linux kernel 3.15/3.16.
  There is a known issue in some versions of linux kernel which enable
register whitelist feature
  but miss some necessary registers which are required for beignet. The
problematic version are
  around 3.15 and 3.16 which have commit f0a346b... but haven't commit
c9224f... If it is the case,
  you can apply c9224f... manually and rebuild the kernel or just disable
the parse command by
  invoke the following command (use Ubuntu as an example):
  `# echo 0 > /sys/module/i915/parameters/enable_cmd_parser`
"
> -----Original Message-----
> From: Beignet [mailto:beignet-bounces at lists.freedesktop.org] On Behalf Of
> Julian Simioni
> Sent: Tuesday, April 7, 2015 8:30 PM
> To: Rebecca N. Palmer
> Cc: beignet at lists.freedesktop.org
> Subject: Re: [Beignet] Haswell-ULT Support?
> 
> On 04/07, Rebecca N. Palmer wrote:
> > > https://01.org/zh/beignet/downloads/linux-kernel-patch-hsw-support
> > He's already said he has that applied, and is reporting a lot more
> > than
> > 30 test failures.
> >
> > _______________________________________________
> > Beignet mailing list
> > Beignet at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/beignet
> 
> That's correct. I've definitely applied that patch, and the symptoms seem
much
> more severe than what that patch would have fixed.
> 
> To illustrate, I've created about the simplest possible OpenCL program[1].
It
> simply sets a single float value to 1.0. On the host, the float is
initialized to 0.0.
> Running the code with beignet on the GPU device does not change the float
> value from 0, whereas running it with the intel-ocl-sdk on the CPU does
> correctly change it to 1.0. Let me know if there are any possible errors
in that
> program, or if you need more information, and I'll be happy to provide it.
> 
> Thanks,
> Julian
> 
> [1]https://github.com/orangejulius/opencl_simple/blob/master/simple.c