How to install OpenCL 1.2

Hello, could you tell me how I can change the OpenCL version from 2 to 1.2.

Number of platforms:				 1
  Platform Profile:				 FULL_PROFILE
  Platform Version:				 OpenCL 2.1 AMD-APP (3513.0)
  Platform Name:				 AMD Accelerated Parallel Processing
  Platform Vendor:				 Advanced Micro Devices, Inc.
  Platform Extensions:				 cl_khr_icd cl_amd_event_callback 
  Platform Name:				 AMD Accelerated Parallel Processing
Number of devices:				 1
  Device Type:					 CL_DEVICE_TYPE_GPU
  Vendor ID:					 1002h
  Board name:					 AMD Radeon Graphics
  Device Topology:				 PCI[ B#3, D#0, F#0 ]
  Max compute units:				 7
  Max work items dimensions:			 3
    Max work items[0]:				 1024
    Max work items[1]:				 1024
    Max work items[2]:				 1024
  Max work group size:				 256
  Preferred vector width char:			 4
  Preferred vector width short:			 2
  Preferred vector width int:			 1
  Preferred vector width long:			 1
  Preferred vector width float:			 1
  Preferred vector width double:		 1
  Native vector width char:			 4
  Native vector width short:			 2
  Native vector width int:			 1
  Native vector width long:			 1
  Native vector width float:			 1
  Native vector width double:			 1
  Max clock frequency:				 1800Mhz
  Address bits:					 64
  Max memory allocation:			 456340272
  Image support:				 Yes
  Max number of images read arguments:		 128
  Max number of images write arguments:		 8
  Max image 2D width:				 16384
  Max image 2D height:				 16384
  Max image 3D width:				 16384
  Max image 3D height:				 16384
  Max image 3D depth:				 8192
  Max samplers within kernel:			 5708
  Max size of kernel argument:			 1024
  Alignment (bits) of base address:		 1024
  Minimum alignment (bytes) for any datatype:	 128
  Single precision floating point capability
    Denorms:					 Yes
    Quiet NaNs:					 Yes
    Round to nearest even:			 Yes
    Round to zero:				 Yes
    Round to +ve and infinity:			 Yes
    IEEE754-2008 fused multiply-add:		 Yes
  Cache type:					 Read/Write
  Cache line size:				 64
  Cache size:					 16384
  Global memory size:				 536870912
  Constant buffer size:				 456340272
  Max number of constant args:			 8
  Local memory type:				 Scratchpad
  Local memory size:				 65536
  Max pipe arguments:				 16
  Max pipe active reservations:			 16
  Max pipe packet size:				 456340272
  Max global variable size:			 456340272
  Max global variable preferred total size:	 536870912
  Max read/write image args:			 64
  Max on device events:				 1024
  Queue on device max size:			 8388608
  Max on device queues:				 1
  Queue on device preferred size:		 262144
  SVM capabilities:				 
    Coarse grain buffer:			 Yes
    Fine grain buffer:				 Yes
    Fine grain system:				 No
    Atomics:					 No
  Preferred platform atomic alignment:		 0
  Preferred global atomic alignment:		 0
  Preferred local atomic alignment:		 0
  Kernel Preferred work group size multiple:	 64
  Error correction support:			 0
  Unified memory for Host and Device:		 0
  Profiling timer resolution:			 1
  Device endianess:				 Little
  Available:					 Yes
  Compiler available:				 Yes
  Execution capabilities:				 
    Execute OpenCL kernels:			 Yes
    Execute native function:			 No
  Queue on Host properties:				 
    Out-of-Order:				 No
    Profiling :					 Yes
  Queue on Device properties:				 
    Out-of-Order:				 Yes
    Profiling :					 Yes
  Platform ID:					 0x7fad74358eb0
  Name:						 gfx90c:xnack+
  Vendor:					 Advanced Micro Devices, Inc.
  Device OpenCL C version:			 OpenCL C 2.0 
  Driver version:				 3513.0 (HSA1.1,LC)
  Profile:					 FULL_PROFILE
  Version:					 OpenCL 2.0 
  Extensions:					 cl_khr_fp64 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_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_fp16 cl_khr_gl_sharing cl_amd_device_attribute_query cl_amd_media_ops cl_amd_media_ops2 cl_khr_image2d_from_buffer cl_khr_subgroups cl_khr_depth_images cl_amd_copy_buffer_p2p cl_amd_assembly_program

XY Problem detected: You’re asking about your attempted solution rather than your actual problem. This leads to enormous amounts of wasted time and energy, both on the part of people asking for help, and on the part of those providing help.

Sorry for the possibly inaccurate wording.
I need OpenCL 1.2. The problem is that I can’t install it. As far as I know, there is only OpenCL 2.0 in aur. As a result, my question is — where can I, or how can I, install OpenCL 1.2.
I need OpenCL 1.2 for course work.

Right. You have a problem that you think you can solve with OpenCL 1.2. We still don’t know what the problem actually is or why you think you need OpenCL 1.2.

What package are you referring to?

That is the version your hardware supports.

My AMD system with opencl-mesa:

❯ clinfo | grep Version
  Platform Version                                OpenCL 1.1 Mesa 22.2.4
  Device Version                                  OpenCL 1.1 Mesa 22.2.4
  Device Numeric Version                          0x401000 (1.1.0)
  Driver Version                                  22.2.4
  Device OpenCL C Version                         OpenCL C 1.1 
  Device Extensions with Version                  cl_khr_byte_addressable_store                                    0x400000 (1.0.0)
  ICD loader Version                              2.3.1

My NVIDIA system with opencl-nvidia:

❯ clinfo | grep Version
  Platform Version                                OpenCL 3.0 CUDA 11.8.87
  Platform Extensions with Version                cl_khr_global_int32_base_atomics                                 0x400000 (1.0.0)
  Platform Numeric Version                        0xc00000 (3.0.0)
  Device Version                                  OpenCL 3.0 CUDA
  Device Numeric Version                          0xc00000 (3.0.0)
  Driver Version                                  520.56.06
  Device OpenCL C Version                         OpenCL C 1.2 
  Device Extensions with Version                  cl_khr_global_int32_base_atomics                                 0x400000 (1.0.0)
  ICD loader Version                              2.3.1