diff --git a/bin/hipify-perl b/bin/hipify-perl
index 8496c4d9..9c30c55f 100755
--- a/bin/hipify-perl
+++ b/bin/hipify-perl
@@ -1690,6 +1690,7 @@ sub rocSubstitutions {
     subst("cusparseCgebsr2gebsr", "rocsparse_cgebsr2gebsr", "library");
     subst("cusparseCgebsr2gebsr_bufferSize", "rocsparse_cgebsr2gebsr_buffer_size", "library");
     subst("cusparseCgpsvInterleavedBatch", "rocsparse_cgpsv_interleaved_batch", "library");
+    subst("cusparseCgpsvInterleavedBatch_bufferSizeExt", "rocsparse_cgpsv_interleaved_batch_buffer_size", "library");
     subst("cusparseCnnz", "rocsparse_cnnz", "library");
     subst("cusparseCnnz_compress", "rocsparse_cnnz_compress", "library");
     subst("cusparseCooAoSGet", "rocsparse_coo_aos_get", "library");
@@ -1739,6 +1740,7 @@ sub rocSubstitutions {
     subst("cusparseDgebsr2gebsr", "rocsparse_dgebsr2gebsr", "library");
     subst("cusparseDgebsr2gebsr_bufferSize", "rocsparse_dgebsr2gebsr_buffer_size", "library");
     subst("cusparseDgpsvInterleavedBatch", "rocsparse_dgpsv_interleaved_batch", "library");
+    subst("cusparseDgpsvInterleavedBatch_bufferSizeExt", "rocsparse_dgpsv_interleaved_batch_buffer_size", "library");
     subst("cusparseDnMatGet", "rocsparse_dnmat_get", "library");
     subst("cusparseDnMatGetStridedBatch", "rocsparse_dnmat_get_strided_batch", "library");
     subst("cusparseDnMatGetValues", "rocsparse_dnmat_get_values", "library");
@@ -1797,6 +1799,7 @@ sub rocSubstitutions {
     subst("cusparseSgebsr2gebsr", "rocsparse_sgebsr2gebsr", "library");
     subst("cusparseSgebsr2gebsr_bufferSize", "rocsparse_sgebsr2gebsr_buffer_size", "library");
     subst("cusparseSgpsvInterleavedBatch", "rocsparse_sgpsv_interleaved_batch", "library");
+    subst("cusparseSgpsvInterleavedBatch_bufferSizeExt", "rocsparse_sgpsv_interleaved_batch_buffer_size", "library");
     subst("cusparseSnnz", "rocsparse_snnz", "library");
     subst("cusparseSnnz_compress", "rocsparse_snnz_compress", "library");
     subst("cusparseSpMV", "rocsparse_spmv", "library");
@@ -1854,6 +1857,7 @@ sub rocSubstitutions {
     subst("cusparseZgebsr2gebsr", "rocsparse_zgebsr2gebsr", "library");
     subst("cusparseZgebsr2gebsr_bufferSize", "rocsparse_zgebsr2gebsr_buffer_size", "library");
     subst("cusparseZgpsvInterleavedBatch", "rocsparse_zgpsv_interleaved_batch", "library");
+    subst("cusparseZgpsvInterleavedBatch_bufferSizeExt", "rocsparse_zgpsv_interleaved_batch_buffer_size", "library");
     subst("cusparseZnnz", "rocsparse_znnz", "library");
     subst("cusparseZnnz_compress", "rocsparse_znnz_compress", "library");
     subst("cublas.h", "rocblas.h", "include_cuda_main_header");
diff --git a/docs/tables/CUSPARSE_API_supported_by_HIP_and_ROC.md b/docs/tables/CUSPARSE_API_supported_by_HIP_and_ROC.md
index ae8014bc..82fee252 100644
--- a/docs/tables/CUSPARSE_API_supported_by_HIP_and_ROC.md
+++ b/docs/tables/CUSPARSE_API_supported_by_HIP_and_ROC.md
@@ -490,7 +490,7 @@
 |`cusparseCcsrilu02_bufferSizeExt`| |12.2| |`hipsparseCcsrilu02_bufferSizeExt`|3.1.0| | | | | | | | |
 |`cusparseCcsrilu02_numericBoost`| |12.2| |`hipsparseCcsrilu02_numericBoost`|3.10.0| | | | | | | | |
 |`cusparseCgpsvInterleavedBatch`|9.2| | |`hipsparseCgpsvInterleavedBatch`|5.1.0| | | |`rocsparse_cgpsv_interleaved_batch`|5.1.0| | | |
-|`cusparseCgpsvInterleavedBatch_bufferSizeExt`|9.2| | |`hipsparseCgpsvInterleavedBatch_bufferSizeExt`|5.1.0| | | | | | | | |
+|`cusparseCgpsvInterleavedBatch_bufferSizeExt`|9.2| | |`hipsparseCgpsvInterleavedBatch_bufferSizeExt`|5.1.0| | | |`rocsparse_cgpsv_interleaved_batch_buffer_size`|5.1.0| | | |
 |`cusparseCgtsv`| |10.2|11.0| | | | | | | | | | |
 |`cusparseCgtsv2`|9.0| | |`hipsparseCgtsv2`|4.3.0| | | | | | | | |
 |`cusparseCgtsv2StridedBatch`| | | |`hipsparseCgtsv2StridedBatch`|4.5.0| | | | | | | | |
@@ -524,7 +524,7 @@
 |`cusparseDcsrilu02_bufferSizeExt`| |12.2| |`hipsparseDcsrilu02_bufferSizeExt`|1.9.2| | | | | | | | |
 |`cusparseDcsrilu02_numericBoost`| |12.2| |`hipsparseDcsrilu02_numericBoost`|3.10.0| | | | | | | | |
 |`cusparseDgpsvInterleavedBatch`|9.2| | |`hipsparseDgpsvInterleavedBatch`|5.1.0| | | |`rocsparse_dgpsv_interleaved_batch`|5.1.0| | | |
-|`cusparseDgpsvInterleavedBatch_bufferSizeExt`|9.2| | |`hipsparseDgpsvInterleavedBatch_bufferSizeExt`|5.1.0| | | | | | | | |
+|`cusparseDgpsvInterleavedBatch_bufferSizeExt`|9.2| | |`hipsparseDgpsvInterleavedBatch_bufferSizeExt`|5.1.0| | | |`rocsparse_dgpsv_interleaved_batch_buffer_size`|5.1.0| | | |
 |`cusparseDgtsv`| |10.2|11.0| | | | | | | | | | |
 |`cusparseDgtsv2`|9.0| | |`hipsparseDgtsv2`|4.3.0| | | | | | | | |
 |`cusparseDgtsv2StridedBatch`| | | |`hipsparseDgtsv2StridedBatch`|4.5.0| | | | | | | | |
@@ -557,7 +557,7 @@
 |`cusparseScsrilu02_bufferSizeExt`| |12.2| |`hipsparseScsrilu02_bufferSizeExt`|1.9.2| | | | | | | | |
 |`cusparseScsrilu02_numericBoost`| |12.2| |`hipsparseScsrilu02_numericBoost`|3.10.0| | | | | | | | |
 |`cusparseSgpsvInterleavedBatch`|9.2| | |`hipsparseSgpsvInterleavedBatch`|5.1.0| | | |`rocsparse_sgpsv_interleaved_batch`|5.1.0| | | |
-|`cusparseSgpsvInterleavedBatch_bufferSizeExt`|9.2| | |`hipsparseSgpsvInterleavedBatch_bufferSizeExt`|5.1.0| | | | | | | | |
+|`cusparseSgpsvInterleavedBatch_bufferSizeExt`|9.2| | |`hipsparseSgpsvInterleavedBatch_bufferSizeExt`|5.1.0| | | |`rocsparse_sgpsv_interleaved_batch_buffer_size`|5.1.0| | | |
 |`cusparseSgtsv`| |10.2|11.0| | | | | | | | | | |
 |`cusparseSgtsv2`|9.0| | |`hipsparseSgtsv2`|4.3.0| | | | | | | | |
 |`cusparseSgtsv2StridedBatch`|9.0| | |`hipsparseSgtsv2StridedBatch`|4.5.0| | | | | | | | |
@@ -594,7 +594,7 @@
 |`cusparseZcsrilu02_bufferSizeExt`| |12.2| |`hipsparseZcsrilu02_bufferSizeExt`|3.1.0| | | | | | | | |
 |`cusparseZcsrilu02_numericBoost`| |12.2| |`hipsparseZcsrilu02_numericBoost`|3.10.0| | | | | | | | |
 |`cusparseZgpsvInterleavedBatch`|9.2| | |`hipsparseZgpsvInterleavedBatch`|5.1.0| | | |`rocsparse_zgpsv_interleaved_batch`|5.1.0| | | |
-|`cusparseZgpsvInterleavedBatch_bufferSizeExt`|9.2| | |`hipsparseZgpsvInterleavedBatch_bufferSizeExt`|5.1.0| | | | | | | | |
+|`cusparseZgpsvInterleavedBatch_bufferSizeExt`|9.2| | |`hipsparseZgpsvInterleavedBatch_bufferSizeExt`|5.1.0| | | |`rocsparse_zgpsv_interleaved_batch_buffer_size`|5.1.0| | | |
 |`cusparseZgtsv`| |10.2|11.0| | | | | | | | | | |
 |`cusparseZgtsv2`|9.0| | |`hipsparseZgtsv2`|4.3.0| | | | | | | | |
 |`cusparseZgtsv2StridedBatch`| | | |`hipsparseZgtsv2StridedBatch`|4.5.0| | | | | | | | |
diff --git a/docs/tables/CUSPARSE_API_supported_by_ROC.md b/docs/tables/CUSPARSE_API_supported_by_ROC.md
index 2941477d..3011ccd5 100644
--- a/docs/tables/CUSPARSE_API_supported_by_ROC.md
+++ b/docs/tables/CUSPARSE_API_supported_by_ROC.md
@@ -490,7 +490,7 @@
 |`cusparseCcsrilu02_bufferSizeExt`| |12.2| | | | | | |
 |`cusparseCcsrilu02_numericBoost`| |12.2| | | | | | |
 |`cusparseCgpsvInterleavedBatch`|9.2| | |`rocsparse_cgpsv_interleaved_batch`|5.1.0| | | |
-|`cusparseCgpsvInterleavedBatch_bufferSizeExt`|9.2| | | | | | | |
+|`cusparseCgpsvInterleavedBatch_bufferSizeExt`|9.2| | |`rocsparse_cgpsv_interleaved_batch_buffer_size`|5.1.0| | | |
 |`cusparseCgtsv`| |10.2|11.0| | | | | |
 |`cusparseCgtsv2`|9.0| | | | | | | |
 |`cusparseCgtsv2StridedBatch`| | | | | | | | |
@@ -524,7 +524,7 @@
 |`cusparseDcsrilu02_bufferSizeExt`| |12.2| | | | | | |
 |`cusparseDcsrilu02_numericBoost`| |12.2| | | | | | |
 |`cusparseDgpsvInterleavedBatch`|9.2| | |`rocsparse_dgpsv_interleaved_batch`|5.1.0| | | |
-|`cusparseDgpsvInterleavedBatch_bufferSizeExt`|9.2| | | | | | | |
+|`cusparseDgpsvInterleavedBatch_bufferSizeExt`|9.2| | |`rocsparse_dgpsv_interleaved_batch_buffer_size`|5.1.0| | | |
 |`cusparseDgtsv`| |10.2|11.0| | | | | |
 |`cusparseDgtsv2`|9.0| | | | | | | |
 |`cusparseDgtsv2StridedBatch`| | | | | | | | |
@@ -557,7 +557,7 @@
 |`cusparseScsrilu02_bufferSizeExt`| |12.2| | | | | | |
 |`cusparseScsrilu02_numericBoost`| |12.2| | | | | | |
 |`cusparseSgpsvInterleavedBatch`|9.2| | |`rocsparse_sgpsv_interleaved_batch`|5.1.0| | | |
-|`cusparseSgpsvInterleavedBatch_bufferSizeExt`|9.2| | | | | | | |
+|`cusparseSgpsvInterleavedBatch_bufferSizeExt`|9.2| | |`rocsparse_sgpsv_interleaved_batch_buffer_size`|5.1.0| | | |
 |`cusparseSgtsv`| |10.2|11.0| | | | | |
 |`cusparseSgtsv2`|9.0| | | | | | | |
 |`cusparseSgtsv2StridedBatch`|9.0| | | | | | | |
@@ -594,7 +594,7 @@
 |`cusparseZcsrilu02_bufferSizeExt`| |12.2| | | | | | |
 |`cusparseZcsrilu02_numericBoost`| |12.2| | | | | | |
 |`cusparseZgpsvInterleavedBatch`|9.2| | |`rocsparse_zgpsv_interleaved_batch`|5.1.0| | | |
-|`cusparseZgpsvInterleavedBatch_bufferSizeExt`|9.2| | | | | | | |
+|`cusparseZgpsvInterleavedBatch_bufferSizeExt`|9.2| | |`rocsparse_zgpsv_interleaved_batch_buffer_size`|5.1.0| | | |
 |`cusparseZgtsv`| |10.2|11.0| | | | | |
 |`cusparseZgtsv2`|9.0| | | | | | | |
 |`cusparseZgtsv2StridedBatch`| | | | | | | | |
diff --git a/src/CUDA2HIP_SPARSE_API_functions.cpp b/src/CUDA2HIP_SPARSE_API_functions.cpp
index 19b5ec1e..eb356568 100644
--- a/src/CUDA2HIP_SPARSE_API_functions.cpp
+++ b/src/CUDA2HIP_SPARSE_API_functions.cpp
@@ -482,10 +482,10 @@ const std::map<llvm::StringRef, hipCounter> CUDA_SPARSE_FUNCTION_MAP {
   {"cusparseZgtsvInterleavedBatch",                     {"hipsparseZgtsvInterleavedBatch",                     "",                                                                 CONV_LIB_FUNC, API_SPARSE, 12, ROC_UNSUPPORTED}},
 
   // 12.5. Batched Pentadiagonal Solve
-  {"cusparseSgpsvInterleavedBatch_bufferSizeExt",       {"hipsparseSgpsvInterleavedBatch_bufferSizeExt",       "",                                                                 CONV_LIB_FUNC, API_SPARSE, 12, ROC_UNSUPPORTED}},
-  {"cusparseDgpsvInterleavedBatch_bufferSizeExt",       {"hipsparseDgpsvInterleavedBatch_bufferSizeExt",       "",                                                                 CONV_LIB_FUNC, API_SPARSE, 12, ROC_UNSUPPORTED}},
-  {"cusparseCgpsvInterleavedBatch_bufferSizeExt",       {"hipsparseCgpsvInterleavedBatch_bufferSizeExt",       "",                                                                 CONV_LIB_FUNC, API_SPARSE, 12, ROC_UNSUPPORTED}},
-  {"cusparseZgpsvInterleavedBatch_bufferSizeExt",       {"hipsparseZgpsvInterleavedBatch_bufferSizeExt",       "",                                                                 CONV_LIB_FUNC, API_SPARSE, 12, ROC_UNSUPPORTED}},
+  {"cusparseSgpsvInterleavedBatch_bufferSizeExt",       {"hipsparseSgpsvInterleavedBatch_bufferSizeExt",       "rocsparse_sgpsv_interleaved_batch_buffer_size",                    CONV_LIB_FUNC, API_SPARSE, 12}},
+  {"cusparseDgpsvInterleavedBatch_bufferSizeExt",       {"hipsparseDgpsvInterleavedBatch_bufferSizeExt",       "rocsparse_dgpsv_interleaved_batch_buffer_size",                    CONV_LIB_FUNC, API_SPARSE, 12}},
+  {"cusparseCgpsvInterleavedBatch_bufferSizeExt",       {"hipsparseCgpsvInterleavedBatch_bufferSizeExt",       "rocsparse_cgpsv_interleaved_batch_buffer_size",                    CONV_LIB_FUNC, API_SPARSE, 12}},
+  {"cusparseZgpsvInterleavedBatch_bufferSizeExt",       {"hipsparseZgpsvInterleavedBatch_bufferSizeExt",       "rocsparse_zgpsv_interleaved_batch_buffer_size",                    CONV_LIB_FUNC, API_SPARSE, 12}},
 
   {"cusparseSgpsvInterleavedBatch",                     {"hipsparseSgpsvInterleavedBatch",                     "rocsparse_sgpsv_interleaved_batch",                                CONV_LIB_FUNC, API_SPARSE, 12}},
   {"cusparseDgpsvInterleavedBatch",                     {"hipsparseDgpsvInterleavedBatch",                     "rocsparse_dgpsv_interleaved_batch",                                CONV_LIB_FUNC, API_SPARSE, 12}},
@@ -2139,6 +2139,10 @@ const std::map<llvm::StringRef, hipAPIversions> HIP_SPARSE_FUNCTION_VER_MAP {
   {"rocsparse_cgpsv_interleaved_batch",                  {HIP_5010, HIP_0,    HIP_0   }},
   {"rocsparse_dgpsv_interleaved_batch",                  {HIP_5010, HIP_0,    HIP_0   }},
   {"rocsparse_sgpsv_interleaved_batch",                  {HIP_5010, HIP_0,    HIP_0   }},
+  {"rocsparse_zgpsv_interleaved_batch_buffer_size",      {HIP_5010, HIP_0,    HIP_0   }},
+  {"rocsparse_cgpsv_interleaved_batch_buffer_size",      {HIP_5010, HIP_0,    HIP_0   }},
+  {"rocsparse_dgpsv_interleaved_batch_buffer_size",      {HIP_5010, HIP_0,    HIP_0   }},
+  {"rocsparse_sgpsv_interleaved_batch_buffer_size",      {HIP_5010, HIP_0,    HIP_0   }},
 };
 
 const std::map<unsigned int, llvm::StringRef> CUDA_SPARSE_API_SECTION_MAP {
diff --git a/src/HipifyAction.cpp b/src/HipifyAction.cpp
index 6485eb04..ed9ae291 100644
--- a/src/HipifyAction.cpp
+++ b/src/HipifyAction.cpp
@@ -86,6 +86,10 @@ const std::string sCusparseZgpsvInterleavedBatch = "cusparseZgpsvInterleavedBatc
 const std::string sCusparseCgpsvInterleavedBatch = "cusparseCgpsvInterleavedBatch";
 const std::string sCusparseDgpsvInterleavedBatch = "cusparseDgpsvInterleavedBatch";
 const std::string sCusparseSgpsvInterleavedBatch = "cusparseSgpsvInterleavedBatch";
+const std::string sCusparseZgpsvInterleavedBatch_bufferSizeExt = "cusparseZgpsvInterleavedBatch_bufferSizeExt";
+const std::string sCusparseCgpsvInterleavedBatch_bufferSizeExt = "cusparseCgpsvInterleavedBatch_bufferSizeExt";
+const std::string sCusparseDgpsvInterleavedBatch_bufferSizeExt = "cusparseDgpsvInterleavedBatch_bufferSizeExt";
+const std::string sCusparseSgpsvInterleavedBatch_bufferSizeExt = "cusparseSgpsvInterleavedBatch_bufferSizeExt";
 // CUDA_OVERLOADED
 const std::string sCudaEventCreate = "cudaEventCreate";
 const std::string sCudaGraphInstantiate = "cudaGraphInstantiate";
@@ -422,6 +426,42 @@ std::map<std::string, ArgCastStruct> FuncArgCasts {
       false
     }
   },
+  {sCusparseZgpsvInterleavedBatch_bufferSizeExt,
+    {
+      {
+        {9, {e_add_var_argument, cw_None, "", 10}}
+      },
+      true,
+      false
+    }
+  },
+  {sCusparseCgpsvInterleavedBatch_bufferSizeExt,
+    {
+      {
+        {9, {e_add_var_argument, cw_None, "", 10}}
+      },
+      true,
+      false
+    }
+  },
+  {sCusparseDgpsvInterleavedBatch_bufferSizeExt,
+    {
+      {
+        {9, {e_add_var_argument, cw_None, "", 10}}
+      },
+      true,
+      false
+    }
+  },
+  {sCusparseSgpsvInterleavedBatch_bufferSizeExt,
+    {
+      {
+        {9, {e_add_var_argument, cw_None, "", 10}}
+      },
+      true,
+      false
+    }
+  },
 };
 
 void HipifyAction::RewriteString(StringRef s, clang::SourceLocation start) {
@@ -1127,7 +1167,11 @@ std::unique_ptr<clang::ASTConsumer> HipifyAction::CreateASTConsumer(clang::Compi
             sCusparseZgpsvInterleavedBatch,
             sCusparseCgpsvInterleavedBatch,
             sCusparseDgpsvInterleavedBatch,
-            sCusparseSgpsvInterleavedBatch
+            sCusparseSgpsvInterleavedBatch,
+            sCusparseZgpsvInterleavedBatch_bufferSizeExt,
+            sCusparseCgpsvInterleavedBatch_bufferSizeExt,
+            sCusparseDgpsvInterleavedBatch_bufferSizeExt,
+            sCusparseSgpsvInterleavedBatch_bufferSizeExt
           )
         )
       )
diff --git a/tests/unit_tests/synthetic/libraries/cusparse2hipsparse.cu b/tests/unit_tests/synthetic/libraries/cusparse2hipsparse.cu
index 9097f41e..6d69407e 100644
--- a/tests/unit_tests/synthetic/libraries/cusparse2hipsparse.cu
+++ b/tests/unit_tests/synthetic/libraries/cusparse2hipsparse.cu
@@ -830,6 +830,26 @@ int main() {
   // HIP: HIPSPARSE_EXPORT hipsparseStatus_t hipsparseSgpsvInterleavedBatch(hipsparseHandle_t handle, int algo, int m, float* ds, float* dl, float* d, float* du, float* dw, float* x, int batchCount, void* pBuffer);
   // CHECK: status_t = hipsparseSgpsvInterleavedBatch(handle_t, algo, m, &fds, &fdl, &fd, &fdu, &fdw, &fx, batchCount, pBuffer);
   status_t = cusparseSgpsvInterleavedBatch(handle_t, algo, m, &fds, &fdl, &fd, &fdu, &fdw, &fx, batchCount, pBuffer);
+
+  // CUDA: cusparseStatus_t CUSPARSEAPI cusparseZgpsvInterleavedBatch_bufferSizeExt(cusparseHandle_t handle, int algo, int m, const cuDoubleComplex* ds, const cuDoubleComplex* dl, const cuDoubleComplex* d, const cuDoubleComplex* du, const cuDoubleComplex* dw, const cuDoubleComplex* x, int batchCount, size_t* pBufferSizeInBytes);
+  // HIP: HIPSPARSE_EXPORT hipsparseStatus_t hipsparseZgpsvInterleavedBatch_bufferSizeExt(hipsparseHandle_t handle, int algo, int m, const hipDoubleComplex* ds, const hipDoubleComplex* dl, const hipDoubleComplex* d, const hipDoubleComplex* du, const hipDoubleComplex* dw, const hipDoubleComplex* x, int batchCount, size_t* pBufferSizeInBytes);
+  // CHECK: status_t = hipsparseZgpsvInterleavedBatch_bufferSizeExt(handle_t, algo, m, &dcomplexds, &dcomplexdl, &dcomplexd, &dcomplexdu, &dcomplexdw, &dcomplexx, batchCount, &bufferSize);
+  status_t = cusparseZgpsvInterleavedBatch_bufferSizeExt(handle_t, algo, m, &dcomplexds, &dcomplexdl, &dcomplexd, &dcomplexdu, &dcomplexdw, &dcomplexx, batchCount, &bufferSize);
+
+  // CUDA: cusparseStatus_t CUSPARSEAPI cusparseCgpsvInterleavedBatch_bufferSizeExt(cusparseHandle_t handle, int algo, int m, const cuComplex* ds, const cuComplex* dl, const cuComplex* d, const cuComplex* du, const cuComplex* dw, const cuComplex* x, int batchCount, size_t* pBufferSizeInBytes);
+  // HIP: HIPSPARSE_EXPORT hipsparseStatus_t hipsparseCgpsvInterleavedBatch_bufferSizeExt(hipsparseHandle_t handle, int algo, int m, const hipComplex* ds, const hipComplex* dl, const hipComplex* d, const hipComplex* du, const hipComplex* dw, const hipComplex* x, int batchCount, size_t* pBufferSizeInBytes);
+  // CHECK: status_t = hipsparseCgpsvInterleavedBatch_bufferSizeExt(handle_t, algo, m, &complexds, &complexdl, &complexd, &complexdu, &complexdw, &complexx, batchCount, &bufferSize);
+  status_t = cusparseCgpsvInterleavedBatch_bufferSizeExt(handle_t, algo, m, &complexds, &complexdl, &complexd, &complexdu, &complexdw, &complexx, batchCount, &bufferSize);
+
+  // CUDA: cusparseStatus_t CUSPARSEAPI cusparseDgpsvInterleavedBatch_bufferSizeExt(cusparseHandle_t handle, int algo, int m, const double* ds, const double* dl, const double* d, const double* du, const double* dw, const double* x, int batchCount, size_t* pBufferSizeInBytes);
+  // HIP: HIPSPARSE_EXPORT hipsparseStatus_t hipsparseDgpsvInterleavedBatch_bufferSizeExt(hipsparseHandle_t handle, int algo, int m, const double* ds, const double* dl, const double* d, const double* du, const double* dw, const double* x, int batchCount, size_t* pBufferSizeInBytes);
+  // CHECK: status_t = hipsparseDgpsvInterleavedBatch_bufferSizeExt(handle_t, algo, m, &dds, &ddl, &dd, &ddu, &ddw, &dx, batchCount, &bufferSize);
+  status_t = cusparseDgpsvInterleavedBatch_bufferSizeExt(handle_t, algo, m, &dds, &ddl, &dd, &ddu, &ddw, &dx, batchCount, &bufferSize);
+
+  // CUDA: cusparseStatus_t CUSPARSEAPI cusparseSgpsvInterleavedBatch_bufferSizeExt(cusparseHandle_t handle, int algo, int m, const float* ds, const float* dl, const float* d, const float* du, const float* dw, const float* x, int batchCount, size_t* pBufferSizeInBytes);
+  // HIP: HIPSPARSE_EXPORT hipsparseStatus_t hipsparseSgpsvInterleavedBatch_bufferSizeExt(hipsparseHandle_t handle, int algo, int m, const float* ds, const float* dl, const float* d, const float* du, const float* dw, const float* x, int batchCount, size_t* pBufferSizeInBytes);
+  // CHECK: status_t = hipsparseSgpsvInterleavedBatch_bufferSizeExt(handle_t, algo, m, &fds, &fdl, &fd, &fdu, &fdw, &fx, batchCount, &bufferSize);
+  status_t = cusparseSgpsvInterleavedBatch_bufferSizeExt(handle_t, algo, m, &fds, &fdl, &fd, &fdu, &fdw, &fx, batchCount, &bufferSize);
 #endif
 
 #if CUDA_VERSION >= 10010
diff --git a/tests/unit_tests/synthetic/libraries/cusparse2rocsparse.cu b/tests/unit_tests/synthetic/libraries/cusparse2rocsparse.cu
index e2080f33..6515fa7f 100644
--- a/tests/unit_tests/synthetic/libraries/cusparse2rocsparse.cu
+++ b/tests/unit_tests/synthetic/libraries/cusparse2rocsparse.cu
@@ -841,6 +841,30 @@ int main() {
   // ROC: ROCSPARSE_EXPORT rocsparse_status rocsparse_sgpsv_interleaved_batch(rocsparse_handle handle, rocsparse_gpsv_interleaved_alg alg, rocsparse_int m, float* ds, float* dl, float* d, float* du, float* dw, float* x, rocsparse_int batch_count, rocsparse_int batch_stride, void* temp_buffer);
   // CHECK: status_t = rocsparse_sgpsv_interleaved_batch(handle_t, algo, m, &fds, &fdl, &fd, &fdu, &fdw, &fx, batchCount, batchCount, pBuffer);
   status_t = cusparseSgpsvInterleavedBatch(handle_t, algo, m, &fds, &fdl, &fd, &fdu, &fdw, &fx, batchCount, pBuffer);
+
+  // NOTE: An additional argument rocsparse_int batch_stride is added for the rocsparse_zgpsv_interleaved_batch_buffer_size function call: the argument is copied from the previous one: rocsparse_int batch_count. It is how hipsparseSgpsvInterleavedBatch calls rocsparse_zgpsv_interleaved_batch_buffer_size in its implementation.
+  // CUDA: cusparseStatus_t CUSPARSEAPI cusparseZgpsvInterleavedBatch_bufferSizeExt(cusparseHandle_t handle, int algo, int m, const cuDoubleComplex* ds, const cuDoubleComplex* dl, const cuDoubleComplex* d, const cuDoubleComplex* du, const cuDoubleComplex* dw, const cuDoubleComplex* x, int batchCount, size_t* pBufferSizeInBytes);
+  // ROC: ROCSPARSE_EXPORT rocsparse_status rocsparse_zgpsv_interleaved_batch_buffer_size(rocsparse_handle handle, rocsparse_gpsv_interleaved_alg alg, rocsparse_int m, const rocsparse_double_complex* ds, const rocsparse_double_complex* dl, const rocsparse_double_complex* d, const rocsparse_double_complex* du, const rocsparse_double_complex* dw, const rocsparse_double_complex* x, rocsparse_int batch_count, rocsparse_int batch_stride, size_t* buffer_size);
+  // CHECK: status_t = rocsparse_zgpsv_interleaved_batch_buffer_size(handle_t, algo, m, &dcomplexds, &dcomplexdl, &dcomplexd, &dcomplexdu, &dcomplexdw, &dcomplexx, batchCount, batchCount, &bufferSize);
+  status_t = cusparseZgpsvInterleavedBatch_bufferSizeExt(handle_t, algo, m, &dcomplexds, &dcomplexdl, &dcomplexd, &dcomplexdu, &dcomplexdw, &dcomplexx, batchCount, &bufferSize);
+
+  // NOTE: An additional argument rocsparse_int batch_stride is added for the rocsparse_cgpsv_interleaved_batch_buffer_size function call: the argument is copied from the previous one: rocsparse_int batch_count. It is how hipsparseCgpsvInterleavedBatch_bufferSizeExt calls rocsparse_cgpsv_interleaved_batch_buffer_size in its implementation.
+  // CUDA: cusparseStatus_t CUSPARSEAPI cusparseCgpsvInterleavedBatch_bufferSizeExt(cusparseHandle_t handle, int algo, int m, const cuComplex* ds, const cuComplex* dl, const cuComplex* d, const cuComplex* du, const cuComplex* dw, const cuComplex* x, int batchCount, size_t* pBufferSizeInBytes);
+  // ROC: ROCSPARSE_EXPORT rocsparse_status rocsparse_cgpsv_interleaved_batch_buffer_size(rocsparse_handle handle, rocsparse_gpsv_interleaved_alg alg, rocsparse_int m, const rocsparse_float_complex* ds, const rocsparse_float_complex* dl, const rocsparse_float_complex* d, const rocsparse_float_complex* du, const rocsparse_float_complex* dw, const rocsparse_float_complex* x, rocsparse_int batch_count, rocsparse_int batch_stride, size_t* buffer_size);
+  // CHECK: status_t = rocsparse_cgpsv_interleaved_batch_buffer_size(handle_t, algo, m, &complexds, &complexdl, &complexd, &complexdu, &complexdw, &complexx, batchCount, batchCount, &bufferSize);
+  status_t = cusparseCgpsvInterleavedBatch_bufferSizeExt(handle_t, algo, m, &complexds, &complexdl, &complexd, &complexdu, &complexdw, &complexx, batchCount, &bufferSize);
+
+  // NOTE: An additional argument rocsparse_int batch_stride is added for the rocsparse_dgpsv_interleaved_batch_buffer_size function call: the argument is copied from the previous one: rocsparse_int batch_count. It is how hipsparseDgpsvInterleavedBatch_bufferSizeExt calls rocsparse_dgpsv_interleaved_batch_buffer_size in its implementation.
+  // CUDA: cusparseStatus_t CUSPARSEAPI cusparseDgpsvInterleavedBatch_bufferSizeExt(cusparseHandle_t handle, int algo, int m, const double* ds, const double* dl, const double* d, const double* du, const double* dw, const double* x, int batchCount, size_t* pBufferSizeInBytes);
+  // ROC: ROCSPARSE_EXPORT rocsparse_status rocsparse_dgpsv_interleaved_batch_buffer_size(rocsparse_handle handle, rocsparse_gpsv_interleaved_alg alg, rocsparse_int m, const double* ds, const double* dl, const double* d, const double* du, const double* dw, const double* x, rocsparse_int batch_count, rocsparse_int batch_stride, size_t* buffer_size);
+  // CHECK: status_t = rocsparse_dgpsv_interleaved_batch_buffer_size(handle_t, algo, m, &dds, &ddl, &dd, &ddu, &ddw, &dx, batchCount, batchCount, &bufferSize);
+  status_t = cusparseDgpsvInterleavedBatch_bufferSizeExt(handle_t, algo, m, &dds, &ddl, &dd, &ddu, &ddw, &dx, batchCount, &bufferSize);
+
+  // NOTE: An additional argument rocsparse_int batch_stride is added for the rocsparse_dgpsv_interleaved_batch_buffer_size function call: the argument is copied from the previous one: rocsparse_int batch_count. It is how hipsparseSgpsvInterleavedBatch_bufferSizeExt calls rocsparse_dgpsv_interleaved_batch_buffer_size in its implementation.
+  // CUDA: cusparseStatus_t CUSPARSEAPI cusparseSgpsvInterleavedBatch_bufferSizeExt(cusparseHandle_t handle, int algo, int m, const float* ds, const float* dl, const float* d, const float* du, const float* dw, const float* x, int batchCount, size_t* pBufferSizeInBytes);
+  // ROC: ROCSPARSE_EXPORT rocsparse_status rocsparse_sgpsv_interleaved_batch_buffer_size(rocsparse_handle handle, rocsparse_gpsv_interleaved_alg alg, rocsparse_int m, const float* ds, const float* dl, const float* d, const float* du, const float* dw, const float* x, rocsparse_int batch_count, rocsparse_int batch_stride, size_t* buffer_size);
+  // CHECK: status_t = rocsparse_sgpsv_interleaved_batch_buffer_size(handle_t, algo, m, &fds, &fdl, &fd, &fdu, &fdw, &fx, batchCount, batchCount, &bufferSize);
+  status_t = cusparseSgpsvInterleavedBatch_bufferSizeExt(handle_t, algo, m, &fds, &fdl, &fd, &fdu, &fdw, &fx, batchCount, &bufferSize);
 #endif
 
 #if (CUDA_VERSION >= 10010 && CUDA_VERSION < 11000 && !defined(_WIN32)) || CUDA_VERSION >= 11000