[Refactor] Phase out microTVM

.github/CODEOWNERSHIP

@@ -132,13 +132,6 @@ src/runtime/**  @vinx13 @tqchen @FronzenGene @liangfu @areusch @tmoreau89 @ajtul
 include/tvm/runtime/**  @vinx13 @tqchen @FronzenGene @liangfu @areusch @tmoreau89 @ajtulloch @masahi @kazum @ZihengJiang  @junrushao1994
 python/tvm/runtime/**  @vinx13 @tqchen @FronzenGene @liangfu @areusch @tmoreau89 @ajtulloch @masahi @kazum @ZihengJiang  @junrushao1994
 
-# runtime/micro
-src/runtime/micro/** @areusch @liangfu @tmoreau89 @manupa-arm
-src/runtime/crt/** @areusch @liangfu @tmoreau89 @manupa-arm
-include/tvm/runtime/crt/** @areusch @liangfu @tmoreau89 @manupa-arm
-include/tvm/runtime/micro/** @areusch @liangfu @tmoreau89 @manupa-arm
-python/tvm/micro/** @areusch @liangfu @tmoreau89 @manupa-arm
-
 # relay
 src/relay/** @jroesch @slyubomirsky @icemelon @MarisaKirisame @ZihengJiang @yzhliu @vinx13 @mbrookhart @jwfromm @zhiics @anijain2305 @wweic @eqy @junrushao1994
 include/tvm/relay/** @jroesch @slyubomirsky @icemelon @MarisaKirisame @ZihengJiang @yzhliu @vinx13 @mbrookhart @jwfromm @zhiics @anijain2305 @wweic @eqy @junrushao1994

.gitignore

@@ -263,9 +263,6 @@ src/runtime/hexagon/rpc/hexagon_rpc_stub.c
 # Local tvm-site checkout
 tvm-site/
 
-# Generated docs files
-gallery/how_to/work_with_microtvm/micro_tvmc.py
-
 # Test sample data files
 !tests/python/ci/sample_prs/*.json
 

CMakeLists.txt

@@ -12,7 +12,6 @@ include(cmake/utils/FindVulkan.cmake)
 include(cmake/utils/FindLLVM.cmake)
 include(cmake/utils/FindROCM.cmake)
 include(cmake/utils/FindRCCL.cmake)
-include(cmake/utils/FindEthosN.cmake)
 include(cmake/utils/FindNVSHMEM.cmake)
 
 if(EXISTS ${CMAKE_BINARY_DIR}/config.cmake)
@@ -68,14 +67,11 @@ tvm_option(TVM_DEBUG_WITH_ABI_CHANGE "Enable debug code that may cause ABI chang
 tvm_option(TVM_LOG_BEFORE_THROW "Whether log before throw, for debugging purposes" OFF)
 tvm_option(USE_RTTI "Build with RTTI" ON)
 tvm_option(USE_MSVC_MT "Build with MT" OFF)
-tvm_option(USE_MICRO "Build with Micro TVM support" OFF)
 tvm_option(INSTALL_DEV "Install compiler infrastructure" OFF)
 tvm_option(HIDE_PRIVATE_SYMBOLS "Compile with -fvisibility=hidden." OFF)
 tvm_option(USE_TF_TVMDSOOP "Build with TensorFlow TVMDSOOp" OFF)
 tvm_option(USE_PT_TVMDSOOP "Build with PyTorch TVMDSOOp" OFF)
 tvm_option(USE_FALLBACK_STL_MAP "Use TVM's POD compatible Map" OFF)
-tvm_option(USE_ETHOSN "Build with Arm(R) Ethos(TM)-N" OFF)
-tvm_option(USE_CMSISNN "Build with Arm CMSIS-NN" OFF)
 tvm_option(INDEX_DEFAULT_I64 "Defaults the index datatype to int64" ON)
 tvm_option(USE_LIBBACKTRACE "Use libbacktrace to supply linenumbers on stack traces" AUTO)
 tvm_option(BACKTRACE_ON_SEGFAULT "Install a signal handler to print a backtrace on segfault" OFF)
@@ -113,7 +109,6 @@ tvm_option(USE_SORT "Build with sort support" ON)
 tvm_option(USE_NNPACK "Build with nnpack support" OFF)
 tvm_option(USE_LIBTORCH "Build with libtorch support" OFF)
 tvm_option(USE_RANDOM "Build with random support" ON)
-tvm_option(USE_MICRO_STANDALONE_RUNTIME "Build with micro.standalone_runtime support" OFF)
 tvm_option(USE_CPP_RPC "Build CPP RPC" OFF)
 tvm_option(USE_IOS_RPC "Build iOS RPC" OFF)
 tvm_option(USE_TFLITE "Build with tflite support" OFF)
@@ -569,7 +564,6 @@ else()
 endif()
 
 # Module rules
-include(cmake/modules/StandaloneCrt.cmake)
 include(cmake/modules/CUDA.cmake)
 include(cmake/modules/Hexagon.cmake) # This must come before logging.cmake
 include(cmake/modules/contrib/CLML.cmake) # Must be before OpenCL.cmake
@@ -579,10 +573,6 @@ include(cmake/modules/Vulkan.cmake)
 include(cmake/modules/Metal.cmake)
 include(cmake/modules/ROCM.cmake)
 include(cmake/modules/LLVM.cmake)
-include(cmake/modules/Micro.cmake)
-include(cmake/modules/contrib/EthosN.cmake)
-include(cmake/modules/contrib/CMSISNN.cmake)
-include(cmake/modules/contrib/EthosU.cmake)
 include(cmake/modules/contrib/BLAS.cmake)
 include(cmake/modules/contrib/CODEGENC.cmake)
 include(cmake/modules/contrib/DNNL.cmake)
@@ -591,7 +581,6 @@ include(cmake/modules/contrib/CUTLASS.cmake)
 include(cmake/modules/contrib/ExampleTargetHooks.cmake)
 include(cmake/modules/contrib/Random.cmake)
 include(cmake/modules/contrib/Posit.cmake)
-include(cmake/modules/contrib/MicroStandaloneRuntime.cmake)
 include(cmake/modules/contrib/MSCCLPP.cmake)
 include(cmake/modules/contrib/Sort.cmake)
 include(cmake/modules/contrib/NNPack.cmake)
@@ -682,15 +671,6 @@ include(cmake/modules/Logging.cmake)
 
 include(cmake/modules/contrib/PAPI.cmake)
 
-if(USE_MICRO)
-  # NOTE: cmake doesn't track dependencies at the file level across subdirectories. For the
-  # Unix Makefiles generator, need to add these explicit target-level dependency)
-  add_dependencies(tvm_runtime arduino)
-  add_dependencies(tvm_runtime crt)
-  add_dependencies(tvm_runtime host_standalone_crt)
-  add_dependencies(tvm_runtime zephyr)
-endif()
-
 if(USE_CPP_RPC)
   add_subdirectory("apps/cpp_rpc")
 endif()
@@ -817,9 +797,6 @@ if(GTEST_FOUND)
       target_link_libraries(cpptest PRIVATE ${LLVM_LIBS})
     endif()
   endif()
-  if(DEFINED ETHOSN_RUNTIME_LIBRARY)
-    target_link_libraries(cpptest PRIVATE ${ETHOSN_RUNTIME_LIBRARY})
-  endif()
   set_target_properties(cpptest PROPERTIES EXCLUDE_FROM_ALL 1)
   set_target_properties(cpptest PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD 1)
   if(USE_RELAY_DEBUG)

apps/cpp_rpc/CMakeLists.txt

@@ -61,14 +61,6 @@ if (BUILD_FOR_ANDROID AND USE_HEXAGON)
   list(APPEND TVM_RPC_LINKER_LIBS cdsprpc log)
 endif()
 
-if(USE_ETHOSN)
-  if (ETHOSN_RUNTIME_LIBRARY)
-    list(APPEND TVM_RPC_LINKER_LIBS ${ETHOSN_RUNTIME_LIBRARY})
-  else()
-    message(WARNING "Could not locate Arm(R) Ethos(TM)-N runtime library components")
-  endif()
-endif()
-
 if(BUILD_STATIC_RUNTIME)
   list(APPEND TVM_RPC_LINKER_LIBS -Wl,--whole-archive tvm_runtime -Wl,--no-whole-archive)
 else()

apps/cpp_rtvm/CMakeLists.txt

@@ -71,14 +71,6 @@ if (BUILD_FOR_ANDROID AND USE_HEXAGON)
   list(APPEND RTVM_LINKER_LIBS cdsprpc log)
 endif()
 
-if(USE_ETHOSN)
-  if (ETHOSN_RUNTIME_LIBRARY)
-    list(APPEND RTVM_LINKER_LIBS ${ETHOSN_RUNTIME_LIBRARY})
-  else()
-    message(WARNING "Could not locate Arm(R) Ethos(TM)-N runtime library components")
-  endif()
-endif()
-
 if(BUILD_STATIC_RUNTIME)
   list(APPEND RTVM_LINKER_LIBS -Wl,--whole-archive tvm_runtime -Wl,--no-whole-archive z)
 else()