diff --git a/kernel/power/KERNEL.PPCG4 b/kernel/power/KERNEL.PPCG4
index c73601cee3..0297df5973 100644
--- a/kernel/power/KERNEL.PPCG4
+++ b/kernel/power/KERNEL.PPCG4
@@ -70,13 +70,13 @@ DSCALKERNEL	=  scal_ppc440.S
 CSCALKERNEL	= zscal_ppc440.S
 ZSCALKERNEL	= zscal_ppc440.S
 
-SGEMMKERNEL    =  gemm_kernel_altivec_g4.S
-SGEMMINCOPY    =  ../generic/gemm_ncopy_16.c
-SGEMMITCOPY    =  ../generic/gemm_tcopy_16.c
+SGEMMKERNEL    =  gemm_kernel_g4.S
+SGEMMINCOPY    = 
+SGEMMITCOPY    = 
 SGEMMONCOPY    =  gemm_ncopy_4.S
 SGEMMOTCOPY    =  gemm_tcopy_4.S
-SGEMMINCOPYOBJ =  sgemm_incopy$(TSUFFIX).$(SUFFIX)
-SGEMMITCOPYOBJ =  sgemm_itcopy$(TSUFFIX).$(SUFFIX)
+SGEMMINCOPYOBJ = 
+SGEMMITCOPYOBJ = 
 SGEMMONCOPYOBJ =  sgemm_oncopy$(TSUFFIX).$(SUFFIX)
 SGEMMOTCOPYOBJ =  sgemm_otcopy$(TSUFFIX).$(SUFFIX)
 DGEMMKERNEL    =  gemm_kernel_g4.S
diff --git a/param.h b/param.h
index 66eedc7980..259592cdfe 100644
--- a/param.h
+++ b/param.h
@@ -2243,7 +2243,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define GEMM_DEFAULT_OFFSET_B 1024
 #define GEMM_DEFAULT_ALIGN 0x0ffffUL
 
-#define SGEMM_DEFAULT_UNROLL_M 16
+#define SGEMM_DEFAULT_UNROLL_M 4
 #define SGEMM_DEFAULT_UNROLL_N 4
 #define DGEMM_DEFAULT_UNROLL_M 4
 #define DGEMM_DEFAULT_UNROLL_N 4