[REFACTOR][Target] Move ConfigSchema into target headers

Place ConfigSchema with its TargetKind consumer and align its namespace with the public target API. Update includes and type references while preserving schema behavior.

Author: tqchen

include/tvm/ir/config_schema.h include/tvm/target/config_schema.hinclude/tvm/ir/config_schema.h renamed to include/tvm/target/config_schema.h

@@ -18,14 +18,14 @@
  */
 
 /*!
- * \file tvm/ir/config_schema.h
+ * \file tvm/target/config_schema.h
  * \brief Minimal schema for dynamic config canonicalization and validation.
  *
  * This utility is intended for dynamic map-like configs (e.g. Target options),
  * where we still want type checking, optional defaulting, and canonicalization.
  */
-#ifndef TVM_IR_CONFIG_SCHEMA_H_
-#define TVM_IR_CONFIG_SCHEMA_H_
+#ifndef TVM_TARGET_CONFIG_SCHEMA_H_
+#define TVM_TARGET_CONFIG_SCHEMA_H_
 
 #include <tvm/ffi/container/map.h>
 #include <tvm/ffi/function.h>
@@ -39,7 +39,6 @@
 #include <vector>
 
 namespace tvm {
-namespace ir {
 
 /*!
  * \brief Dynamic config schema for map-like options.
@@ -236,7 +235,6 @@ class ConfigSchema {
   bool error_on_unknown_ = true;
 };
 
-}  // namespace ir
 }  // namespace tvm
 
-#endif  // TVM_IR_CONFIG_SCHEMA_H_
+#endif  // TVM_TARGET_CONFIG_SCHEMA_H_

include/tvm/target/target_kind.h

@@ -27,8 +27,8 @@
 #include <tvm/ffi/container/map.h>
 #include <tvm/ffi/function.h>
 #include <tvm/ffi/reflection/registry.h>
-#include <tvm/ir/config_schema.h>
 #include <tvm/runtime/base.h>
+#include <tvm/target/config_schema.h>
 
 #include <utility>
 #include <vector>
@@ -75,7 +75,7 @@ class TargetKindNode : public ffi::Object {
 
  private:
   /*! \brief ConfigSchema for validating and resolving target attributes */
-  ir::ConfigSchema schema_;
+  ConfigSchema schema_;
   friend class TargetKindRegistry;
   friend class TargetKindDef;
   friend class TargetInternal;

src/target/target_kind.cc

@@ -189,7 +189,7 @@ TVM_FFI_STATIC_INIT_BLOCK() {
       .set_default_device_type(kDLCPU)  // line break
       .def_option<ffi::Array<Target>>(
           "devices",
-          ir::ConfigSchema::AttrValidator(ffi::TypedFunction<ffi::Any(ffi::Any)>(  //
+          ConfigSchema::AttrValidator(ffi::TypedFunction<ffi::Any(ffi::Any)>(  //
               [](ffi::Any val) -> ffi::Any {
                 // Allow elements to be strings or dicts, converting them to Target objects.
                 if (val.try_cast<ffi::Array<Target>>().has_value()) return val;

tests/cpp/config_schema_test.cc

@@ -21,10 +21,9 @@
 #include <tvm/ffi/container/array.h>
 #include <tvm/ffi/container/map.h>
 #include <tvm/ffi/string.h>
-#include <tvm/ir/config_schema.h>
+#include <tvm/target/config_schema.h>
 
 using namespace tvm;
-using namespace tvm::ir;
 namespace refl = tvm::ffi::reflection;
 
 // Basic int/bool/string option resolution