diff --git a/python/tvm/tl/language.py b/python/tvm/tl/language.py
index 6e3e78686cff..2ec9da78b8cd 100644
--- a/python/tvm/tl/language.py
+++ b/python/tvm/tl/language.py
@@ -136,13 +136,13 @@ def Kernel(*blocks: List[tir.PrimExpr], threads: Union[int, List[int], Tuple] =
     return _ffi_api.KernelLaunch(blocks, threads, attrs)
 
 
-def use_swizzle(panel_size: int, order: str = "row"):
+def use_swizzle(panel_size: int, order: str = "row", enable: bool = True):
     device_func = (
         "rasterization2DRow" if order == "row" else "rasterization2DColumn"
     )
     return T.attr(
         None, "threadblock_swizzle_pattern", f"tl::{device_func}<{panel_size}>"
-    )
+    ) if enable else None
 
 
 def alloc_shared(shape, dtype, scope="shared.dyn"):
diff --git a/src/tl/tl_templates/threadblock_swizzle.h b/src/tl/tl_templates/threadblock_swizzle.h
index ed8b3935eb8f..4b08c2ebd65d 100644
--- a/src/tl/tl_templates/threadblock_swizzle.h
+++ b/src/tl/tl_templates/threadblock_swizzle.h
@@ -6,33 +6,33 @@ namespace tl {
 
 template <int panel_width>
 TL_DEVICE dim3 rasterization2DRow() {
-  const int block_idx = blockIdx.x + blockIdx.y * gridDim.x;
-  const int grid_size = gridDim.x * gridDim.y;
-  const int panel_size = panel_width * gridDim.x;
-  const int panel_offset = block_idx % panel_size;
-  const int panel_idx = block_idx / panel_size;
-  const int total_panel = cutlass::ceil_div(grid_size, panel_size);
-  const int stride =
+  const unsigned int block_idx = blockIdx.x + blockIdx.y * gridDim.x;
+  const unsigned int grid_size = gridDim.x * gridDim.y;
+  const unsigned int panel_size = panel_width * gridDim.x;
+  const unsigned int panel_offset = block_idx % panel_size;
+  const unsigned int panel_idx = block_idx / panel_size;
+  const unsigned int total_panel = cutlass::ceil_div(grid_size, panel_size);
+  const unsigned int stride =
       panel_idx + 1 < total_panel ? panel_width : (grid_size - panel_idx * panel_size) / gridDim.x;
-  const int col_idx =
+  const unsigned int col_idx =
       (panel_idx & 1) ? gridDim.x - 1 - panel_offset / stride : panel_offset / stride;
-  const int row_idx = panel_offset % stride + panel_idx * panel_width;
+  const unsigned int row_idx = panel_offset % stride + panel_idx * panel_width;
   return {col_idx, row_idx, blockIdx.z};
 }
 
 template <int panel_width>
 TL_DEVICE dim3 rasterization2DColumn() {
-  const int block_idx = blockIdx.x + blockIdx.y * gridDim.x;
-  const int grid_size = gridDim.x * gridDim.y;
-  const int panel_size = panel_width * gridDim.y;
-  const int panel_offset = block_idx % panel_size;
-  const int panel_idx = block_idx / panel_size;
-  const int total_panel = cutlass::ceil_div(grid_size, panel_size);
-  const int stride =
+  const unsigned int block_idx = blockIdx.x + blockIdx.y * gridDim.x;
+  const unsigned int grid_size = gridDim.x * gridDim.y;
+  const unsigned int panel_size = panel_width * gridDim.y;
+  const unsigned int panel_offset = block_idx % panel_size;
+  const unsigned int panel_idx = block_idx / panel_size;
+  const unsigned int total_panel = cutlass::ceil_div(grid_size, panel_size);
+  const unsigned int stride =
       panel_idx + 1 < total_panel ? panel_width : (grid_size - panel_idx * panel_size) / gridDim.y;
-  const int row_idx =
+  const unsigned int row_idx =
       (panel_idx & 1) ? gridDim.y - 1 - panel_offset / stride : panel_offset / stride;
-  const int col_idx = panel_offset % stride + panel_idx * panel_width;
+  const unsigned int col_idx = panel_offset % stride + panel_idx * panel_width;
   return {col_idx, row_idx, blockIdx.z};
 }