[VTA] Fix vta rpc server, refactor launch cond to not depend on sys.argv

vta/python/vta/__init__.py

@@ -21,6 +21,7 @@
 configure the hardware environment and access remote device through RPC.
 """
 import sys
+import tvm._ffi.base
 
 from .autotvm import module_loader
 from .bitstream import get_bitstream_path, download_bitstream
@@ -29,8 +30,9 @@
 
 __version__ = "0.1.0"
 
+
 # do not from tvm import topi when running vta.exec.rpc_server
-# to maintain minimum dependency on the board
-if sys.argv[0] not in ("-c", "-m"):
+# in lib tvm runtime only mode
+if not tvm._ffi.base._RUNTIME_ONLY:
     from . import top
     from .build_module import build_config, lower, build

vta/python/vta/build_module.py

@@ -17,8 +17,9 @@
 # pylint: disable=unused-argument, invalid-name
 """VTA specific buildin for runtime."""
 import tvm
+from tvm.ir import register_intrin_lowering
 from . import transform
-from .environment import get_env
+from .environment import get_env, Environment
 
 
 def EarlyRewrite():
@@ -134,3 +135,65 @@ def build(*args, **kwargs):
 
 tvm.ir.register_op_attr("tir.vta.command_handle", "TGlobalSymbol", "VTATLSCommandHandle")
 tvm.ir.register_op_attr("tir.vta.command_handle", "TCallEffectKind", tvm.tir.CallEffectKind.Opaque)
+
+# The memory information for the compiler
+@tvm.register_func("tvm.info.mem.%s" % Environment.inp_scope)
+def mem_info_inp_buffer():
+    spec = get_env()
+    return tvm.ir.make_node(
+        "MemoryInfo",
+        unit_bits=spec.INP_ELEM_BITS,
+        max_simd_bits=spec.INP_ELEM_BITS,
+        max_num_bits=spec.INP_BUFF_SIZE * 8,
+        head_address=None,
+    )
+
+
+@tvm.register_func("tvm.info.mem.%s" % Environment.wgt_scope)
+def mem_info_wgt_buffer():
+    spec = get_env()
+    return tvm.ir.make_node(
+        "MemoryInfo",
+        unit_bits=spec.WGT_ELEM_BITS,
+        max_simd_bits=spec.WGT_ELEM_BITS,
+        max_num_bits=spec.WGT_BUFF_SIZE * 8,
+        head_address=None,
+    )
+
+
+@tvm.register_func("tvm.info.mem.%s" % Environment.acc_scope)
+def mem_info_acc_buffer():
+    spec = get_env()
+    return tvm.ir.make_node(
+        "MemoryInfo",
+        unit_bits=spec.ACC_ELEM_BITS,
+        max_simd_bits=spec.ACC_ELEM_BITS,
+        max_num_bits=spec.ACC_BUFF_SIZE * 8,
+        head_address=None,
+    )
+
+
+# TVM Op related registration
+@register_intrin_lowering("tir.vta.coproc_sync", "default")
+def coproc_sync(op):
+    _ = op
+    return tvm.tir.call_extern(
+        "int32",
+        "VTASynchronize",
+        get_env().dev.command_handle,
+        tvm.runtime.const(1 << 31, dtype="uint32"),
+    )
+
+
+@register_intrin_lowering("tir.vta.coproc_dep_push", "default")
+def coproc_dep_push(op):
+    return tvm.tir.call_extern(
+        "int32", "VTADepPush", get_env().dev.command_handle, op.args[0], op.args[1]
+    )
+
+
+@register_intrin_lowering("tir.vta.coproc_dep_pop", "default")
+def coproc_dep_pop(op):
+    return tvm.tir.call_extern(
+        "int32", "VTADepPop", get_env().dev.command_handle, op.args[0], op.args[1]
+    )

vta/python/vta/environment.py

@@ -23,7 +23,6 @@
 import copy
 import tvm
 from tvm import te
-from tvm.ir import register_intrin_lowering
 from . import intrin
 
 
@@ -255,69 +254,6 @@ def get_env():
     return Environment.current
 
 
-# The memory information for the compiler
-@tvm.register_func("tvm.info.mem.%s" % Environment.inp_scope)
-def mem_info_inp_buffer():
-    spec = get_env()
-    return tvm.ir.make_node(
-        "MemoryInfo",
-        unit_bits=spec.INP_ELEM_BITS,
-        max_simd_bits=spec.INP_ELEM_BITS,
-        max_num_bits=spec.INP_BUFF_SIZE * 8,
-        head_address=None,
-    )
-
-
-@tvm.register_func("tvm.info.mem.%s" % Environment.wgt_scope)
-def mem_info_wgt_buffer():
-    spec = get_env()
-    return tvm.ir.make_node(
-        "MemoryInfo",
-        unit_bits=spec.WGT_ELEM_BITS,
-        max_simd_bits=spec.WGT_ELEM_BITS,
-        max_num_bits=spec.WGT_BUFF_SIZE * 8,
-        head_address=None,
-    )
-
-
-@tvm.register_func("tvm.info.mem.%s" % Environment.acc_scope)
-def mem_info_acc_buffer():
-    spec = get_env()
-    return tvm.ir.make_node(
-        "MemoryInfo",
-        unit_bits=spec.ACC_ELEM_BITS,
-        max_simd_bits=spec.ACC_ELEM_BITS,
-        max_num_bits=spec.ACC_BUFF_SIZE * 8,
-        head_address=None,
-    )
-
-
-# TVM Op related registration
-@register_intrin_lowering("tir.vta.coproc_sync", "default")
-def coproc_sync(op):
-    _ = op
-    return tvm.tir.call_extern(
-        "int32",
-        "VTASynchronize",
-        get_env().dev.command_handle,
-        tvm.runtime.const(1 << 31, dtype="uint32"),
-    )
-
-
-@register_intrin_lowering("tir.vta.coproc_dep_push", "default")
-def coproc_dep_push(op):
-    return tvm.tir.call_extern(
-        "int32", "VTADepPush", get_env().dev.command_handle, op.args[0], op.args[1]
-    )
-
-
-@register_intrin_lowering("tir.vta.coproc_dep_pop", "default")
-def coproc_dep_pop(op):
-    return tvm.tir.call_extern(
-        "int32", "VTADepPop", get_env().dev.command_handle, op.args[0], op.args[1]
-    )
-
-
 def _init_env():
     """Initialize the default global env"""
     config_path = os.path.join(get_vta_hw_path(), "config/vta_config.json")