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Diffstat (limited to 'arch/powerpc/lib/copyuser_power7.S')
-rw-r--r--arch/powerpc/lib/copyuser_power7.S21
1 files changed, 11 insertions, 10 deletions
diff --git a/arch/powerpc/lib/copyuser_power7.S b/arch/powerpc/lib/copyuser_power7.S
index 215e4760c09f..1a1fe180af62 100644
--- a/arch/powerpc/lib/copyuser_power7.S
+++ b/arch/powerpc/lib/copyuser_power7.S
@@ -19,6 +19,11 @@
*/
#include <asm/ppc_asm.h>
+#ifndef SELFTEST_CASE
+/* 0 == don't use VMX, 1 == use VMX */
+#define SELFTEST_CASE 0
+#endif
+
#ifdef __BIG_ENDIAN__
#define LVS(VRT,RA,RB) lvsl VRT,RA,RB
#define VPERM(VRT,VRA,VRB,VRC) vperm VRT,VRA,VRB,VRC
@@ -80,7 +85,6 @@
_GLOBAL(__copy_tofrom_user_power7)
-#ifdef CONFIG_ALTIVEC
cmpldi r5,16
cmpldi cr1,r5,3328
@@ -89,15 +93,12 @@ _GLOBAL(__copy_tofrom_user_power7)
std r5,-STACKFRAMESIZE+STK_REG(R29)(r1)
blt .Lshort_copy
- bge cr1,.Lvmx_copy
-#else
- cmpldi r5,16
- std r3,-STACKFRAMESIZE+STK_REG(R31)(r1)
- std r4,-STACKFRAMESIZE+STK_REG(R30)(r1)
- std r5,-STACKFRAMESIZE+STK_REG(R29)(r1)
-
- blt .Lshort_copy
+#ifdef CONFIG_ALTIVEC
+test_feature = SELFTEST_CASE
+BEGIN_FTR_SECTION
+ bgt cr1,.Lvmx_copy
+END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
#endif
.Lnonvmx_copy:
@@ -278,8 +279,8 @@ err1; stb r0,0(r3)
addi r1,r1,STACKFRAMESIZE
b .Lnonvmx_copy
-#ifdef CONFIG_ALTIVEC
.Lvmx_copy:
+#ifdef CONFIG_ALTIVEC
mflr r0
std r0,16(r1)
stdu r1,-STACKFRAMESIZE(r1)