diff --git a/kernel/x86_64/KERNEL.SKYLAKEX b/kernel/x86_64/KERNEL.SKYLAKEX
index 5e0d9e5b4..264e3a9f4 100644
--- a/kernel/x86_64/KERNEL.SKYLAKEX
+++ b/kernel/x86_64/KERNEL.SKYLAKEX
@@ -10,6 +10,7 @@ STRSMKERNEL_LN =  ../generic/trsm_kernel_LN.c
 STRSMKERNEL_LT =  ../generic/trsm_kernel_LT.c
 STRSMKERNEL_RN =  ../generic/trsm_kernel_RN.c
 STRSMKERNEL_RT =  ../generic/trsm_kernel_RT.c
+SGEMM_SMALL_M_PERMIT = sgemm_small_kernel_permit_skylakex.c
 SGEMM_SMALL_K_NN = sgemm_small_kernel_nn_skylakex.c
 SGEMM_SMALL_K_B0_NN = sgemm_small_kernel_b0_nn_skylakex.c
 SGEMM_SMALL_K_NT = sgemm_small_kernel_nt_skylakex.c
diff --git a/kernel/x86_64/sgemm_small_kernel_permit_skylakex.c b/kernel/x86_64/sgemm_small_kernel_permit_skylakex.c
new file mode 100644
index 000000000..159ae10b5
--- /dev/null
+++ b/kernel/x86_64/sgemm_small_kernel_permit_skylakex.c
@@ -0,0 +1,50 @@
+/***************************************************************************
+Copyright (c) 2021, The OpenBLAS Project
+All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+1. Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in
+the documentation and/or other materials provided with the
+distribution.
+3. Neither the name of the OpenBLAS project nor the names of
+its contributors may be used to endorse or promote products
+derived from this software without specific prior written permission.
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*****************************************************************************/
+
+#include "common.h"
+
+int CNAME(int transa, int transb, BLASLONG M, BLASLONG N, BLASLONG K, FLOAT alpha, FLOAT beta)
+{
+	double MNK = (double) M * (double) N * (double) K;
+	if (MNK > 100.0*100.0*100.0)  // disable for big size matrix
+		return 0;
+	// tuning for A transpose
+	if (transa) {
+		if (transb) {
+			return 0;  // TT kernel not support yet
+		} else {  // TN kernel
+			/* TN kernel perform not good when:
+			 * 1. C matrix is too big
+			 * 2. K is too small
+			 */
+			if (M * N > 1200 || K < 32)
+				return 0;
+		}
+	}
+
+	return 1;
+}