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Merged
merged 4 commits into from
Aug 2, 2025
Merged

Updates to Xtensa makefiles #3154

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562fb19
Updates to Xtensa makefiles
ddavis-2015 Jul 21, 2025
ad64f56
Fix incorrect include path.
ddavis-2015 Jul 21, 2025
6622a28
fix copyright
ddavis-2015 Jul 21, 2025
b9f6c1c
Merge branch 'main' into xtensa-makefile-changes
ddavis-2015 Aug 2, 2025
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0 ...ernels/xtensa/hifimini/fixedpoint_utils.h → ...ernels/xtensa/fixedpoint_utils_hifimini.h
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6 changes: 3 additions & 3 deletions ...ernels/xtensa/hifimini/fully_connected.cc → ...ernels/xtensa/fully_connected_hifimini.cc
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
/* Copyright 2023 The TensorFlow Authors. All Rights Reserved.
/* Copyright 2025 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
Expand All @@ -14,7 +14,6 @@ limitations under the License.
==============================================================================*/

#if defined(HIFIMINI)
#include "tensorflow/lite/micro/kernels/fully_connected.h"

#include "tensorflow/lite/c/builtin_op_data.h"
#include "tensorflow/lite/c/common.h"
Expand All @@ -24,8 +23,9 @@ limitations under the License.
#include "tensorflow/lite/kernels/internal/reference/integer_ops/fully_connected.h"
#include "tensorflow/lite/kernels/internal/tensor_ctypes.h"
#include "tensorflow/lite/kernels/kernel_util.h"
#include "tensorflow/lite/micro/kernels/fully_connected.h"
#include "tensorflow/lite/micro/kernels/kernel_util.h"
#include "tensorflow/lite/micro/kernels/xtensa/hifimini/fixedpoint_utils.h"
#include "tensorflow/lite/micro/kernels/xtensa/fixedpoint_utils_hifimini.h"
#include "tensorflow/lite/micro/kernels/xtensa/xtensa.h"

namespace tflite {
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6 changes: 3 additions & 3 deletions ...ite/micro/kernels/xtensa/hifimini/svdf.cc → ...ite/micro/kernels/xtensa/svdf_hifimini.cc
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
/* Copyright 2023 The TensorFlow Authors. All Rights Reserved.
/* Copyright 2025 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
Expand All @@ -14,7 +14,6 @@ limitations under the License.
==============================================================================*/

#if defined(HIFIMINI)
#include "tensorflow/lite/micro/kernels/svdf.h"

#include <cmath>

Expand All @@ -27,7 +26,8 @@ limitations under the License.
#include "tensorflow/lite/kernels/op_macros.h"
#include "tensorflow/lite/micro/kernels/activation_utils.h"
#include "tensorflow/lite/micro/kernels/kernel_util.h"
#include "tensorflow/lite/micro/kernels/xtensa/hifimini/fixedpoint_utils.h"
#include "tensorflow/lite/micro/kernels/svdf.h"
#include "tensorflow/lite/micro/kernels/xtensa/fixedpoint_utils_hifimini.h"
#include "tensorflow/lite/micro/kernels/xtensa/xtensa.h"
#include "tensorflow/lite/micro/kernels/xtensa/xtensa_svdf.h"

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4 changes: 2 additions & 2 deletions tensorflow/lite/micro/kernels/xtensa/xtensa.h
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@@ -1,4 +1,4 @@
/* Copyright 2020 The TensorFlow Authors. All Rights Reserved.
/* Copyright 2025 The TensorFlow Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
Expand All @@ -19,7 +19,7 @@ limitations under the License.
#if defined(HIFIMINI)
#include <xtensa/tie/xt_hifi2.h>

#include "tensorflow/lite/micro/kernels/xtensa/hifimini/fixedpoint_utils.h"
#include "tensorflow/lite/micro/kernels/xtensa/fixedpoint_utils_hifimini.h"
#endif // defined(HIFMINI)

#if defined(HIFI3) || defined(HIFI4) || defined(HIFI5)
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28 changes: 0 additions & 28 deletions tensorflow/lite/micro/tools/make/ext_libs/xtensa.inc
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@@ -1,33 +1,5 @@

# Explicitly add kernel sources specific to the Xtensa optimized
# implementations.
MICROLITE_CC_KERNEL_SRCS += \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/add_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/conv_common_xtensa.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/conv_hifi.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/conv_int16_reference.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/conv_int8_int16.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/conv_int8_reference.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/conv_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/depthwise_conv_hifi.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/depthwise_conv_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/fully_connected_common_xtensa.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/fully_connected_int8.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/fully_connected_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/pad_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/pooling_int8.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/pooling_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/reduce_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/reshape_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/softmax_int8_int16.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/softmax_vision.cc

ifeq ($(TARGET_ARCH), hifimini)
# hifimini optimizations are implemented in the TFLM repository itself.
THIRD_PARTY_KERNEL_CC_SRCS += \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/hifimini/svdf.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/hifimini/fully_connected.cc

FFT_PATH := $(MAKEFILE_DIR)/downloads/hifi_fft
INCLUDES += -I$(FFT_PATH)/

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47 changes: 35 additions & 12 deletions tensorflow/lite/micro/tools/make/targets/xtensa_makefile.inc
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Original file line number Diff line number Diff line change
Expand Up @@ -91,20 +91,43 @@ EXCLUDED_EXAMPLE_TESTS := \
MICRO_LITE_EXAMPLE_TESTS := $(filter-out $(EXCLUDED_EXAMPLE_TESTS), $(MICRO_LITE_EXAMPLE_TESTS))
MICRO_LITE_EXAMPLE_TESTS += $(shell find $(TENSORFLOW_ROOT)third_party/xtensa/examples/ -name Makefile.inc)

# Needed for LSTM support.
MICROLITE_CC_KERNEL_SRCS := $(MICROLITE_CC_KERNEL_SRCS) \
$(TENSORFLOW_ROOT)tensorflow/lite/kernels/internal/reference/portable_tensor_utils.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/kernels/kernel_util.cc

ifeq ($(OPTIMIZED_KERNEL_DIR), xtensa)
MICROLITE_CC_KERNEL_SRCS := $(MICROLITE_CC_KERNEL_SRCS) \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/lstm_eval.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/lstm_eval_hifi.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/unidirectional_sequence_lstm.cc
# Explicitly add kernel sources specific to the Xtensa optimized
# implementations.
#
# Do not include overlays for reference kernel files.
MICROLITE_CC_KERNEL_SRCS += \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/add_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/conv_common_xtensa.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/conv_hifi.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/conv_int16_reference.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/conv_int8_int16.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/conv_int8_reference.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/conv_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/depthwise_conv_hifi.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/depthwise_conv_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/fully_connected_common_xtensa.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/fully_connected_hifimini.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/fully_connected_int8.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/fully_connected_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/lstm_eval_hifi.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/pad_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/pooling_int8.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/pooling_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/reduce_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/reshape_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/softmax_int8_int16.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/softmax_vision.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/svdf_hifimini.cc

# Needed for LSTM support.
MICROLITE_CC_KERNEL_SRCS += \
$(TENSORFLOW_ROOT)tensorflow/lite/kernels/internal/reference/portable_tensor_utils.cc \
$(TENSORFLOW_ROOT)tensorflow/lite/kernels/kernel_util.cc
endif

# override KERNEL_OPTIMIZATION_LEVEL to enable higher performance
# Xtensa intrinsics.
# override KERNEL_OPTIMIZATION_LEVEL to enable higher performance
# Xtensa intrinsics.
$(KERNEL_OBJDIR)$(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/decompress.o: $(TENSORFLOW_ROOT)tensorflow/lite/micro/kernels/xtensa/decompress.cc
@mkdir -p $(dir $@)
$(CXX) $(CXXFLAGS) -O3 -LNO:simd $(INCLUDES) -c $< -o $@
endif
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