1 files changed, 55 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/arm_gemm/misc-sve.cpp b/src/core/NEON/kernels/arm_gemm/misc-sve.cpp
new file mode 100644
index 0000000000..ffe098109f
--- /dev/null
+++ b/src/core/NEON/kernels/arm_gemm/misc-sve.cpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2022 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+namespace arm_gemm {
+
+namespace utils {
+
+#ifdef ARM_COMPUTE_ENABLE_SME
+namespace sme {
+
+unsigned long raw_vector_length() {
+    static unsigned long res=0;
+
+    if (!res) {
+        __asm __volatile(
+            ".inst 0xd503477f  // SMSTART ZA\n"
+            "cntb     %0\n"
+            ".inst 0xd503467f  // SMSTOP\n"
+            : "=r" (res)
+            :
+            : "z0", "z1", "z2", "z3", "z4", "z5", "z6", "z7", "z8", "z9", "z10", "z11", "z12", "z13", "z14", "z15",
+              "z16", "z17", "z18", "z19", "z20", "z21", "z22", "z23", "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31"
+        );
+    }
+
+    return res;
+}
+
+} // namespace sme
+#endif // ARM_COMPUTE_ENABLE_SME
+
+} // namespace utils
+
+} // namespace arm_gemm