Buckify backends/arm for meta internal use.

backends/arm/TARGETS

@@ -0,0 +1,83 @@
+load("@fbcode_macros//build_defs:python_library.bzl", "python_library")
+
+python_library(
+    name = "arm_partitioner",
+    srcs = [
+        "arm_partitioner.py",
+    ],
+    typing = True,
+    deps = [
+        ":arm_backend",
+        "//executorch/backends/arm/passes:passes",
+        "//executorch/exir:lib",
+    ],
+)
+
+python_library(
+    name = "arm_backend",
+    srcs = [
+        "arm_backend.py",
+    ],
+    typing = True,
+    deps = [
+        "fbsource//third-party/pypi/flatbuffers:flatbuffers",
+        "fbsource//third-party/pypi/ml-dtypes:ml-dtypes",
+        "fbsource//third-party/serialization_lib/python/serializer:serializer",
+        "fbsource//third-party/serialization_lib/python/tosa:tosa",
+        ":arm_vela",
+        "//executorch/backends/arm/operators:lib",
+        "//executorch/backends/arm/operators:node_visitor",
+        "//executorch/backends/arm/passes:passes",
+    ],
+)
+
+python_library(
+    name = "arm_vela",
+    srcs = [
+        "arm_vela.py",
+    ],
+    typing = True,
+    deps = [
+        "fbsource//third-party/pypi/ethos-u-vela:ethos-u-vela",
+    ],
+)
+
+python_library(
+    name = "tosa_mapping",
+    srcs = [
+        "tosa_mapping.py",
+    ],
+    typing = True,
+    deps = [
+        "fbsource//third-party/serialization_lib/python/serializer:serializer",
+        "//caffe2:torch",
+    ],
+)
+
+python_library(
+    name = "tosa_quant_utils",
+    srcs = [
+        "tosa_quant_utils.py",
+    ],
+    typing = True,
+    deps = [
+        "fbsource//third-party/pypi/numpy:numpy",
+        "fbsource//third-party/serialization_lib/python/serializer:serializer",
+        "fbsource//third-party/serialization_lib/python/tosa:tosa",
+        ":tosa_mapping",
+        "//executorch/exir/dialects:lib",
+    ],
+)
+
+python_library(
+    name = "tosa_utils",
+    srcs = [
+        "tosa_utils.py",
+    ],
+    typing = True,
+    deps = [
+        "fbsource//third-party/serialization_lib/python/serializer:serializer",
+        ":tosa_quant_utils",
+        "//executorch/backends/arm/operators:node_visitor",
+    ],
+)

backends/arm/arm_backend.py

@@ -159,7 +159,7 @@ def is_tosa(compile_spec: List[CompileSpec]) -> bool:
     return False
 
 
-def get_intermediate_path(compile_spec: List[CompileSpec]) -> str:
+def get_intermediate_path(compile_spec: List[CompileSpec]) -> Optional[str]:
     for spec in compile_spec:
         if spec.key == "debug_artifact_path":
             return spec.value.decode()

backends/arm/arm_vela.py

@@ -5,12 +5,12 @@
 
 import os
 import struct
-import subprocess
 import tempfile
 
 from typing import List
 
 import numpy as np
+from ethosu.vela import vela
 
 
 # Pack either input or output tensor block, compose the related arrays into
@@ -38,21 +38,17 @@ def vela_compile(tosa_graph, args: List[str]):
     with tempfile.TemporaryDirectory() as tmpdir:
         tosaname = "out.tosa"
         flatbuffer = tosa_graph.serialize()
-        with open(os.path.join(tmpdir, tosaname), "wb") as f:
+        tosa_path = os.path.join(tmpdir, tosaname)
+        with open(tosa_path, "wb") as f:
             f.write(flatbuffer)
 
         # invoke vela
-        vela_command = f"cd {tmpdir}; vela {' '.join(args)} {tosaname}"
-        try:
-            subprocess.run([vela_command], shell=True, check=True, capture_output=True)
-        except subprocess.CalledProcessError as process_error:
-            raise RuntimeError(
-                f"Vela compiler ('{vela_command}') failed with error:\n \
-                                     {process_error.stderr.decode()}\n \
-                                      Stdout:\n{process_error.stdout.decode()}"
-            )
-
-        np_path = os.path.join(tmpdir, "output", "out_sg0_vela.npz")
+        output_dir = os.path.join(tmpdir, "output")
+        args.append(f"--output-dir={output_dir}")
+        args.append(tosa_path)
+        vela.main(" ".join(args).split(" "))
+
+        np_path = os.path.join(output_dir, "out_sg0_vela.npz")
         blocks = b""
 
         with np.load(np_path, allow_pickle=False) as data:

backends/arm/operators/TARGETS

@@ -0,0 +1,34 @@
+load("@fbcode_macros//build_defs:python_library.bzl", "python_library")
+
+python_library(
+    name = "node_visitor",
+    srcs = ["node_visitor.py"],
+    typing = True,
+    deps = [
+        "//executorch/backends/arm:tosa_mapping",
+    ],
+)
+
+python_library(
+    name = "ops",
+    srcs = glob(["op_*.py"]),
+    typing = True,
+    deps = [
+        "fbsource//third-party/serialization_lib/python/tosa:tosa",
+        ":node_visitor",
+        "//executorch/backends/arm:tosa_mapping",
+        "//executorch/backends/arm:tosa_quant_utils",
+        "//executorch/backends/arm:tosa_utils",
+        "//executorch/exir:lib",
+    ],
+)
+
+python_library(
+    name = "lib",
+    srcs = ["__init__.py"],
+    typing = True,
+    deps = [
+        ":node_visitor",
+        ":ops",
+    ],
+)

backends/arm/operators/op_bmm.py

@@ -72,6 +72,7 @@ def define_node(
             build_rescale(
                 tosa_fb=tosa_graph,
                 scale=final_output_scale,
+                # pyre-ignore[61]: Uninitialized local [61]: Local variable `bmm_result` is undefined, or not always defined.
                 input_node=bmm_result,
                 output_name=output.name,
                 output_type=ts.DType.INT8,

backends/arm/operators/op_conv2d.py

@@ -2,7 +2,7 @@
 #
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
-from typing import List
+from typing import cast, List
 
 import serializer.tosa_serializer as ts
 import torch
@@ -156,11 +156,12 @@ def define_node(
         # integer value domain of the next op. Otherwise return float32 output.
         if is_quant_node:
             # Get scale_factor from input, weight, and output.
-            _, input_scale, _, _, _, _ = getNodeArgs(node.args[0])
-            _, weight_scale, _, _, _, _ = getNodeArgs(node.args[1])
+            _, input_scale, _, _, _, _ = getNodeArgs(cast(torch.fx.Node, node.args[0]))
+            _, weight_scale, _, _, _, _ = getNodeArgs(cast(torch.fx.Node, node.args[1]))
             _, output_scale, output_zp, _, _, _ = getNodeArgs(list(node.users)[0])
             build_rescale_conv_output(
                 tosa_graph,
+                # pyre-fixme[61]: Uninitialized local [61]: Local variable `conv2d_res` is undefined, or not always defined.
                 conv2d_res,
                 output.name,
                 actual_out_type,

backends/arm/operators/op_mm.py

@@ -96,6 +96,7 @@ def define_node(
             build_rescale(
                 tosa_fb=tosa_graph,
                 scale=final_output_scale,
+                # pyre-ignore[61]: Uninitialized local [61]: Local variable `reshape_intermediate` is undefined, or not always defined.
                 input_node=reshape_intermediate,
                 output_name=output.name,
                 output_type=ts.DType.INT8,

backends/arm/operators/op_mul.py

@@ -3,7 +3,7 @@
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
 
-from typing import List
+from typing import cast, List
 
 import executorch.backends.arm.tosa_quant_utils as tqutils
 import executorch.backends.arm.tosa_utils as tutils
@@ -35,8 +35,12 @@ def define_node(
         if is_quant_node:
             input_A = inputs[0]
             input_B = inputs[1]
-            input_A_qargs = tqutils.get_quant_node_args(node.args[0])
-            input_B_qargs = tqutils.get_quant_node_args(node.args[1])
+            input_A_qargs = tqutils.get_quant_node_args(
+                cast(torch.fx.Node, node.args[0])
+            )
+            input_B_qargs = tqutils.get_quant_node_args(
+                cast(torch.fx.Node, node.args[1])
+            )
 
             input_A.shape = tutils.tosa_shape(input_A.shape, input_A.dim_order)
             input_B.shape = tutils.tosa_shape(input_B.shape, input_B.dim_order)

backends/arm/operators/op_output.py

@@ -3,6 +3,8 @@
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
 
+from typing import cast
+
 import serializer.tosa_serializer as ts
 import torch
 
@@ -11,7 +13,7 @@ def process_output(
     node: torch.fx.Node,
     tosa_graph: ts.TosaSerializer,
 ):
-    for output in node.args[0]:
+    for output in cast(tuple[torch.fx.Node, ...], node.args[0]):
         tosa_graph.addOutputTensor(
             tosa_graph.currRegion.currBasicBlock.tensors[output.name]
         )

backends/arm/operators/op_view.py

@@ -6,14 +6,14 @@
 
 import serializer.tosa_serializer as ts
 import torch
+import tosa.Op as TosaOp
 
 from executorch.backends.arm.operators.node_visitor import (
     NodeVisitor,
     register_node_visitor,
 )
 from executorch.backends.arm.tosa_mapping import TosaArg
 from executorch.backends.arm.tosa_utils import tosa_shape
-from serializer.tosa_serializer import TosaOp
 
 
 @register_node_visitor

backends/arm/passes/TARGETS

@@ -0,0 +1,12 @@
+load("@fbcode_macros//build_defs:python_library.bzl", "python_library")
+
+python_library(
+    name = "passes",
+    srcs = glob(["*.py"]),
+    typing = True,
+    deps = [
+        "//executorch/backends/arm:tosa_quant_utils",
+        "//executorch/backends/arm:tosa_utils",
+        "//executorch/exir:lib",
+    ],
+)

backends/arm/passes/annotate_channels_last_dim_order_pass.py

@@ -4,6 +4,8 @@
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
 
+from typing import cast
+
 import torch
 from executorch.backends.arm.tosa_quant_utils import dq_op
 from executorch.backends.arm.tosa_utils import is_consumer_node_depthwise_conv2d
@@ -28,7 +30,7 @@ def is_weight_node_for_depthwise_conv2d(self, node: torch.fx.Node):
             if node.target != dq_op:
                 return False
             prev_node = node.args[0]
-            if prev_node.op != "placeholder":
+            if cast(torch.fx.Node, prev_node).op != "placeholder":
                 return False
             return is_consumer_node_depthwise_conv2d(node)
         elif node.op == "placeholder":

backends/arm/passes/arm_pass_manager.py

@@ -23,11 +23,11 @@
 
 class ArmPassManager(PassManager):
 
-    def _transform(self, graph_module: torch.fx.Graph):
+    def _transform(self, graph_module: torch.fx.GraphModule):
         return self(graph_module).graph_module
 
     def transform_to_backend_pipeline(
-        self, graph_module: torch.fx.Graph, compile_spec: CompileSpec
+        self, graph_module: torch.fx.GraphModule, compile_spec: list[CompileSpec]
     ):
         """Apply passes before transforming program to backend"""
         self.add_pass(SizeAdjustConv2DPass())

backends/arm/passes/convert_expand_copy_to_repeat.py

@@ -4,6 +4,8 @@
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
 
+from typing import cast
+
 import torch.fx
 from executorch.backends.arm.tosa_mapping import extract_tensor_meta
 from executorch.exir.dialects._ops import ops as exir_ops
@@ -31,7 +33,7 @@ def call(self, graph_module: torch.fx.GraphModule):
 
                 expand_node = src_partition.nodes[0]
                 _, shape, _ = extract_tensor_meta(expand_node.all_input_nodes[0].meta)
-                multiples = expand_node.args[1]
+                multiples = cast(tuple[int], expand_node.args[1])
                 expanded_rank = len(multiples)
 
                 # Expanded shape is 'shape' front-padded with ones.

backends/arm/passes/size_adjust_conv2d_pass.py

@@ -85,8 +85,8 @@ def call(self, graph_module: torch.fx.GraphModule):
             input_node, weight, _, stride_hw, pad_hw, dilation_hw, _, _, _ = (
                 conv_node.args
             )
-            weight_shape = weight.meta["val"].shape
-            input_shape = input_node.meta["val"].shape
+            weight_shape = cast(torch.fx.Node, weight).meta["val"].shape
+            input_shape = cast(torch.fx.Node, input_node).meta["val"].shape
 
             slice_args = []
             for stride, pad, dilation, dim in zip(
@@ -119,7 +119,7 @@ def call(self, graph_module: torch.fx.GraphModule):
                         last_node = dq_node
                     else:
                         last_node = slice_node
-                conv_node.replace_input_with(input_node, last_node)
+                conv_node.replace_input_with(cast(torch.fx.Node, input_node), last_node)
                 modified_graph = True
 
         if modified_graph:

backends/arm/quantizer/TARGETS

@@ -0,0 +1,31 @@
+load("@fbcode_macros//build_defs:python_library.bzl", "python_library")
+
+python_library(
+    name = "arm_quantizer",
+    srcs = ["arm_quantizer.py"],
+    typing = True,
+    deps = [
+        ":arm_quantizer_utils",
+        "//caffe2:torch",
+        "//executorch/backends/arm/quantizer/quantization_annotation:quantization_annotation",
+        "//executorch/exir:lib",
+    ],
+)
+
+python_library(
+    name = "quantization_config",
+    srcs = ["quantization_config.py"],
+    typing = True,
+    deps = [
+        "//caffe2:torch",
+    ],
+)
+
+python_library(
+    name = "arm_quantizer_utils",
+    srcs = ["arm_quantizer_utils.py"],
+    typing = True,
+    deps = [
+        ":quantization_config",
+    ],
+)