From 6d4664a7dc63276c95400bf8fdd41ea337310d82 Mon Sep 17 00:00:00 2001
From: Le-soleile <3516093767@qq.com>
Date: Wed, 1 Oct 2025 08:33:15 +0000
Subject: [PATCH] Add gpu/yolo_box_post_kernel.h

---
 .../phi/kernels/gpu/yolo_box_post_kernel.cu   |  1 +
 paddle/phi/kernels/gpu/yolo_box_post_kernel.h | 68 +++++++++++++++++++
 2 files changed, 69 insertions(+)
 create mode 100644 paddle/phi/kernels/gpu/yolo_box_post_kernel.h

diff --git a/paddle/phi/kernels/gpu/yolo_box_post_kernel.cu b/paddle/phi/kernels/gpu/yolo_box_post_kernel.cu
index d5a74bed0e1a08..1e2613c5cab773 100644
--- a/paddle/phi/kernels/gpu/yolo_box_post_kernel.cu
+++ b/paddle/phi/kernels/gpu/yolo_box_post_kernel.cu
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#include "paddle/phi/kernels/gpu/yolo_box_post_kernel.h"
 #include "paddle/phi/backends/gpu/gpu_context.h"
 #include "paddle/phi/backends/gpu/gpu_launch_config.h"
 #include "paddle/phi/common/memory_utils.h"
diff --git a/paddle/phi/kernels/gpu/yolo_box_post_kernel.h b/paddle/phi/kernels/gpu/yolo_box_post_kernel.h
new file mode 100644
index 00000000000000..63cca0e5d2a9ac
--- /dev/null
+++ b/paddle/phi/kernels/gpu/yolo_box_post_kernel.h
@@ -0,0 +1,68 @@
+// Copyright (c) 2024 PaddlePaddle 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.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include "paddle/phi/core/dense_tensor.h"
+#include "paddle/phi/core/device_context.h"
+#include "paddle/phi/core/enforce.h"
+#include "paddle/phi/core/kernel_registry.h"
+#include "paddle/phi/kernels/funcs/math_function.h"
+
+namespace phi {
+
+struct Box {
+  float x, y, w, h;
+};
+
+struct Detection {
+  Box bbox;
+  int classes;
+  float* prob;
+  float* mask;
+  float objectness;
+  int sort_class;
+  int max_prob_class_index;
+};
+
+struct TensorInfo {
+  int bbox_count_host;  // record bbox numbers
+  int bbox_count_max_alloc{50};
+  float* bboxes_dev_ptr;
+  float* bboxes_host_ptr;
+  int* bbox_count_device_ptr;  // Box counter in gpu memory, used by atomicAdd
+};
+
+template <typename T, typename Context>
+void YoloBoxPostKernel(const Context& dev_ctx,
+                       const DenseTensor& boxes0,
+                       const DenseTensor& boxes1,
+                       const DenseTensor& boxes2,
+                       const DenseTensor& image_shape,
+                       const DenseTensor& image_scale,
+                       const std::vector<int>& anchors0,
+                       const std::vector<int>& anchors1,
+                       const std::vector<int>& anchors2,
+                       int class_num,
+                       float conf_thresh,
+                       int downsample_ratio0,
+                       int downsample_ratio1,
+                       int downsample_ratio2,
+                       bool clip_bbox,
+                       float scale_x_y,
+                       float nms_threshold,
+                       DenseTensor* out,
+                       DenseTensor* nms_rois_num);
+
+}  // namespace phi