sbgemm: spr: tuning for blocking params

param.h

@@ -1771,6 +1771,20 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #endif
 #define USE_SGEMM_KERNEL_DIRECT 1
 
+#undef SBGEMM_DEFAULT_UNROLL_N
+#undef SBGEMM_DEFAULT_UNROLL_M
+#undef SBGEMM_DEFAULT_P
+#undef SBGEMM_DEFAULT_R
+#undef SBGEMM_DEFAULT_Q
+// FIXME: actually UNROLL_M = UNROLL_N = 16
+// If M and N is equal, OpenBLAS will reuse OCOPY as ICOPY.
+// But for AMX, they are not the same, set UNROLL_M = 32 to workaround
+#define SBGEMM_DEFAULT_UNROLL_N 16
+#define SBGEMM_DEFAULT_UNROLL_M 32
+#define SBGEMM_DEFAULT_P 192
+#define SBGEMM_DEFAULT_Q 1024
+#define SBGEMM_DEFAULT_R sbgemm_r
+
 #ifdef ARCH_X86
 
 #define SGEMM_DEFAULT_UNROLL_M 4