Intel clc dependency

[Brian Paul]

On 4/10/24 13:53, Timo Aaltonen wrote:
> Brian Paul kirjoitti 6.4.2024 klo 1.05:
>> I'm trying to build the Intel Vulkan driver.  First time in a few 
>> months.  I'm having build problems related to clc.  I'm on Ubuntu 22.04
>>
>>
>> [...]
>> [1347/3181] Generating src/intel/vulkan/...om command (wrapped by 
>> meson to set env)
>> FAILED: 
>> src/intel/vulkan/grl/gfx125_bvh_build_BFS_BFS_pass1_indexed_batchable.h
>> env MESA_SHADER_CACHE_DISABLE=true MESA_SPIRV_LOG_LEVEL=error 
>> /home/brianp/build3/mesa/build/src/intel/compiler/intel_clc -p dg2 
>> --prefix gfx125_bvh_build_BFS_BFS_pass1_indexed_batchable -e 
>> BFS_pass1_indexed_batchable --in 
>> ../src/intel/vulkan/grl/gpu/bvh_build_BFS.cl --in 
>> /home/brianp/build3/mesa/src/intel/vulkan/grl/gpu/libs/lsc_intrinsics_fallback.cl -o src/intel/vulkan/grl/gfx125_bvh_build_BFS_BFS_pass1_indexed_batchable.h -- -cl-std=cl2.0 -D__OPENCL_VERSION__=200 -DMAX_HW_SIMD_WIDTH=16 -DMAX_WORKGROUP_SIZE=16 -I/home/brianp/build3/mesa/src/intel/vulkan/grl/gpu -I/home/brianp/build3/mesa/src/intel/vulkan/grl/include
>> ERROR: libclc shader missing. Consider installing the libclc package
>> Aborted (core dumped)
>>
>> I've installed every clc-related package I could find.  I've tried 
>> several options for the 'intel-clc' option without luck.
>>
>> BTW, the description of intel-clc in meson_options.txt looks suspect:
>>
>> option(
>>    'intel-clc',
>>    type : 'combo',
>>    deprecated: {'true': 'enabled', 'false': 'disabled'},
>>    value : 'disabled',
>>    choices : [
>>      'enabled', 'disabled', 'system',
>>    ],
>>    description : 'Build the intel-clc compiler (enables Vulkan Intel ' +
>>                  'Ray Tracing on supported hardware).'
>> )
>>
>> The default is 'disabled' but that's deprecated?  Choices include 
>> 'enabled' but that's deprecated too?
>>
>> Any tips for building the ToT Intel Vulkan driver?
>>
>> -Brian
>>
> 
> You need to have libclc-NN-dev installed matching with the llvm version, 
> which on stock 22.04 would be libclc-13-dev.

I'm using llvm 15 and have libclc-15-dev installed.  I get the "ERROR: 
libclc shader missing. Consider installing the libclc package" issue I 
quoted above.

I have llvm 15 installed because I also want to build the radv Vulkan 
driver.

-Brian


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