Update Mesa to 21.1.6 and enable OpenCL #2173
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Unfortunately, SPIRV-Tools fails to built
Yepp, that's what I've discovered too. Also builds seem to diverge if
the OpenCL headers are installed in the system or not (usr/include/CL).
This was my experience when trying on the libOpenCL package.
I propose to lay a bit of a foundation by installing CL headers in
mariux prior to the builds of mesa OpenCL support, since we are in a way
'bootstrapping' OpenCL (sigh... :)
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[Description][1]:
> libclc is an open source, BSD/MIT dual licensed implementation of the
> library requirements of the OpenCL C programming language, as specified
> by the OpenCL 1.1 Specification.
Building Mesa 3D with OpenCL support (`-Dgallium-opencl="icd"`) requires
LLVM’s libclc.
Run-time dependency libclc found: NO (tried pkgconfig and cmake)
../source/meson.build:849:2: ERROR: Dependency "libclc" not found, tried pkgconfig and cmake
[1]: https://libclc.llvm.org/
Building all targets fails due to the check below:
if( "spirv-mesa3d-" IN_LIST LIBCLC_TARGETS_TO_BUILD OR "spirv64-mesa3d-" IN_LIST LIBCLC_TARGETS_TO_BUILD )
if( NOT LLVM_SPIRV )
message( FATAL_ERROR "SPIR-V targets requested, but spirv-tools is not installed" )
endif()
endif()
The failure is:
LLVM cxx flags:
-I/usr/include;-std=c++14;;;-fno-exceptions;-D_GNU_SOURCE;-D__STDC_CONSTANT_MACROS;-D__STDC_FORMAT_MACROS;-D__STDC_LIMIT_MACROS;-fno-rtti;-fno-exceptions
clang: /usr/bin/clang
llvm-as: /usr/bin/llvm-as
llvm-link: /usr/bin/llvm-link
opt: /usr/bin/opt
llvm-spirv: LLVM_SPIRV-NOTFOUND
CMake Error at CMakeLists.txt:115 (message):
SPIR-V targets requested, but spirv-tools is not installed
-- Configuring incomplete, errors occurred!
See also "/dev/shm/bee-pmenzel/libclc/libclc-12.0.1-0/build/CMakeFiles/CMakeOutput.log".
List of all targets:
* amdgcn--
* amdgcn--amdhsa
* r600--
* nvptx--
* nvptx64--
* nvptx--nvidiacl
* nvptx64--nvidiacl
* spirv-mesa3d-
* spirv64-mesa3d-
As LLVM_SPIRV/llvm_spirv is not shipped in MarIuX, and it’s unclear how
to package it (maybe [LLVM-SPIRV-Backend][1]), do it [as Debian does
it][2], and disable the SPIRV targets, by only building the non-SPIRV
targets.
[1]: https://github.com/KhronosGroup/LLVM-SPIRV-Backend
[2]: https://salsa.debian.org/pkg-llvm-team/llvm-toolchain/-/blob/a5528e133ea546feaa48f13f734b94e5744960bc/debian/rules#L544
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I disabled the SPIRV-Mesa-targets in libclc, and Mesa could be built with OpenCL support. No idea what SPIRV is, and if we need it. I didn’t do any OpenCL testing. It’d be great, if somebody knowledgeable could do that. |
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Built without libclc’s SPIRV-Mesa-targets as it’s unclear how to get
LLVM_SPIRV/llvm_spirv.Install with
sudo bee update libclc mesalib.Tested on maleficent (
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon Pro WX 5100] [1002:67c7]).