update directory for cutlass w8a8

Signed-off-by: yewentao256 <zhyanwentao@126.com>

csrc/quantization/w8a8/cutlass/scaled_mm_c3x_sm100.cu

@@ -0,0 +1,22 @@
+#include "c3x/scaled_mm_helper.hpp"
+#include "c3x/scaled_mm_kernels.hpp"
+
+/*
+   This file defines quantized GEMM operations using the CUTLASS 3.x API, for
+   NVIDIA GPUs with sm100 (Blackwell).
+*/
+
+#if defined ENABLE_SCALED_MM_SM100 && ENABLE_SCALED_MM_SM100
+
+void cutlass_scaled_mm_sm100(torch::Tensor& c, torch::Tensor const& a,
+                             torch::Tensor const& b,
+                             torch::Tensor const& a_scales,
+                             torch::Tensor const& b_scales,
+                             std::optional<torch::Tensor> const& bias) {
+  dispatch_scaled_mm(c, a, b, a_scales, b_scales, bias,
+                     vllm::cutlass_scaled_mm_sm100_fp8,
+                     nullptr,  // int8 not supported on SM100
+                     vllm::cutlass_scaled_mm_blockwise_sm100_fp8);
+}
+
+#endif