[Beignet] few questions on Beignet-OpenCL-ICD v1.2.0 regarding X11 and kernel patches

[Yang, Rong R]

There is only beignet-opencl-icd's output, can't find the error message from beignet, can you try beignet's utest directly?
To run utest, you need "make utest", then run ". ./utests/setenv.sh" and at last " ./utests/utest_run".

It seems open device failed, can you also list the device under /dev/dri?

> -----Original Message-----
> From: Beignet [mailto:beignet-bounces at lists.freedesktop.org] On Behalf Of
> Seva Gluschenko
> Sent: Thursday, September 22, 2016 16:36
> To: beignet at lists.freedesktop.org
> Subject: Re: [Beignet] few questions on Beignet-OpenCL-ICD v1.2.0
> regarding X11 and kernel patches
> 	
> Hello Rebecca,
> 
> Please accept my apologies for being not very informative. I'm running
> Ubuntu 16.04.1LTS x86_64 on Intel Core i7-6700, and I had the patched Linux
> kernel 4.4.21-intel.r16.5 and Intel's
> opencl_runtime_16.1.1_x64_ubuntu_6.4.0.25 installed in parallel with
> Beignet. After erasing all that stuff and switching back to the standard kernel
> (4.4.0-38-generic, in fact 4.4.17 with patches, according to ChangeLog), with
> Beignet as the only ICD provider, clinfo no longer fails without X.
> Unfortunately, it does not find any GPU either:
> 
> # clinfo
> Number of platforms                               1
>   Platform Name                                   Intel Gen OCL Driver
>   Platform Vendor                                 Intel
>   Platform Version                                OpenCL 1.2 beignet 1.2
>   Platform Profile                                FULL_PROFILE
>   Platform Extensions                             cl_khr_global_int32_base_atomics
> cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics
> cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store
> cl_khr_3d_image_writes cl_khr_image2d_from_buffer cl_khr_spir
> cl_khr_icd cl_intel_accelerator cl_intel_motion_estimation
> cl_intel_subgroups
>   Platform Extensions function suffix             Intel
> beignet-opencl-icd: no supported GPU found, this is probably the wrong
> opencl-icd package for this hardware (If you have multiple ICDs installed and
> OpenCL works, you can ignore this message)
> 
>   Platform Name                                   Intel Gen OCL Driver
> Number of devices                                 0
> 
> NULL platform behavior
>   clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...)  Intel Gen OCL Driver
> beignet-opencl-icd: no supported GPU found, this is probably the wrong
> opencl-icd package for this hardware (If you have multiple ICDs installed and
> OpenCL works, you can ignore this message)
>   clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...)   Intel Gen OCL Driver
>   clCreateContext(NULL, ...) [default]            No devices found in platform
>   clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU)  No devices found
> in platform
> beignet-opencl-icd: no supported GPU found, this is probably the wrong
> opencl-icd package for this hardware (If you have multiple ICDs installed and
> OpenCL works, you can ignore this message)
>   clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU)  No devices found
> in platform
>   clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR)  No
> devices found in platform
>   clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM)  No devices
> found in platform
> beignet-opencl-icd: no supported GPU found, this is probably the wrong
> opencl-icd package for this hardware (If you have multiple ICDs installed and
> OpenCL works, you can ignore this message)
>   clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL)  No devices found
> in platform
> 
> ICD loader properties
>   ICD loader Name                                 OpenCL ICD Loader
>   ICD loader Vendor                               OCL Icd free software
>   ICD loader Version                              2.2.9
>   ICD loader Profile                              OpenCL 2.1
> 
> The GPU itself is found by the system:
> 
> # lspci -nn |grep VGA
> 00:02.0 VGA compatible controller [0300]: Intel Corporation Sky Lake
> Integrated Graphics [8086:1912] (rev 06)
> 
> Could you please drop me some hints on where to dig further? I feel like I'm
> stuck.
> 
> BTW, thank you very much for the debian package that I found in Debian sid,
> I took its controls and used them to build a package for Ubuntu, with some
> modifications (e.g. killed X dependency).
> 
> 
> 21.09.2016, 22:38, "Rebecca N. Palmer" <rebecca_palmer at zoho.com>:
> >  I just built beignet in a chroot with no X11 installed; it didn't
> > have
> >  that string, and worked (when run as root - for ordinary users, it
> >  failed with "/dev/dri/card0 not authenticated", but this is expected).
> >
> >  Debian's (with-X) beignet has that string and a few more (__cxx11,
> >  x11_display, x11_screen, x11_dpy).
> >
> >  Did you do the no-X compile by an explicit option, or by not
> > installing
> >  the X headers (libx11-dev, libxext-dev, libxfixes-dev)?
> >
> >  Which clinfo is this (there are at least 3 implementations), and can
> > you
> >  get a backtrace of the error (gdb clinfo)?
> >
> >  beignet doesn't need any kernel patches on recent kernels (>=4.2;
> > check
> >  with uname -r), and in the known cases where it does, the error is
> >  "Beignet: self-test failed" not yours.
> 
> 
> 
> --
> Best Regards,
> 
> Seva Gluschenko
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