diff --git a/paddle/fluid/operators/fused/attn_bias_add.cu.h b/paddle/fluid/operators/fused/attn_bias_add.cu.h
index b44faf31501158f82ab7d3b283cbe8a08fb3b485..0c8618972e8ac56e9989edea50fb013678988db8 100644
--- a/paddle/fluid/operators/fused/attn_bias_add.cu.h
+++ b/paddle/fluid/operators/fused/attn_bias_add.cu.h
@@ -34,7 +34,7 @@ namespace cub = hipcub;
 #include "paddle/fluid/operators/elementwise/elementwise_op_broadcast.cu.h"
 #include "paddle/fluid/operators/kernel_primitives/kernel_primitives.h"
 #include "paddle/fluid/operators/reduce_ops/reduce_op.cu.h"
-#include "paddle/fluid/platform/fast_divmod.h"
+#include "paddle/phi/kernels/funcs/fast_divmod.h"
 
 namespace paddle {
 namespace operators {
diff --git a/paddle/fluid/operators/optimizers/lars_momentum_op.cu b/paddle/fluid/operators/optimizers/lars_momentum_op.cu
index 30f380042411864a8729d725e9895b9114be0f8c..43ac1532d4f2115efd560579c62ce142fb0c85f2 100644
--- a/paddle/fluid/operators/optimizers/lars_momentum_op.cu
+++ b/paddle/fluid/operators/optimizers/lars_momentum_op.cu
@@ -15,7 +15,7 @@ limitations under the License. */
 #include "paddle/fluid/operators/optimizers/lars_momentum_op.h"
 #include "paddle/fluid/framework/op_registry.h"
 #include "paddle/fluid/operators/amp/fp16_type_traits.h"
-#include "paddle/fluid/platform/fast_divmod.h"
+#include "paddle/phi/kernels/funcs/aligned_vector.h"
 #include "paddle/phi/kernels/funcs/math_cuda_utils.h"
 
 #if CUDA_VERSION >= 11000
diff --git a/paddle/fluid/platform/fast_divmod.h b/paddle/phi/kernels/funcs/fast_divmod.h
similarity index 95%
rename from paddle/fluid/platform/fast_divmod.h
rename to paddle/phi/kernels/funcs/fast_divmod.h
index 892c5b29aae332ec789d9b11cb3d0e352b76a593..cdd9524627b922a9458afc5f9dd8c8d02f7dc364 100644
--- a/paddle/fluid/platform/fast_divmod.h
+++ b/paddle/phi/kernels/funcs/fast_divmod.h
@@ -23,8 +23,8 @@ limitations under the License. */
 #define __forceinline__ __inline__
 #endif
 
-namespace paddle {
-namespace platform {
+namespace phi {
+namespace funcs {
 
 struct FastDivMod {
   // 1st value represents the result of input number divides by recorded divisor
@@ -64,5 +64,5 @@ struct FastDivMod {
   uint32_t multiplier;
 };
 
-}  // namespace platform
-}  // namespace paddle
+}  // namespace funcs
+}  // namespace phi