summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/kernel/vector.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kernel/vector.S')
-rw-r--r--arch/powerpc/kernel/vector.S24
1 files changed, 4 insertions, 20 deletions
diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S
index 038cff8cf5f2..51b0c175ea8c 100644
--- a/arch/powerpc/kernel/vector.S
+++ b/arch/powerpc/kernel/vector.S
@@ -106,36 +106,20 @@ _GLOBAL(load_up_altivec)
blr
/*
- * __giveup_altivec(tsk)
- * Disable VMX for the task given as the argument,
- * and save the vector registers in its thread_struct.
+ * save_altivec(tsk)
+ * Save the vector registers to its thread_struct
*/
-_GLOBAL(__giveup_altivec)
+_GLOBAL(save_altivec)
addi r3,r3,THREAD /* want THREAD of task */
PPC_LL r7,THREAD_VRSAVEAREA(r3)
PPC_LL r5,PT_REGS(r3)
PPC_LCMPI 0,r7,0
bne 2f
addi r7,r3,THREAD_VRSTATE
-2: PPC_LCMPI 0,r5,0
- SAVE_32VRS(0,r4,r7)
+2: SAVE_32VRS(0,r4,r7)
mfvscr v0
li r4,VRSTATE_VSCR
stvx v0,r4,r7
- beq 1f
- PPC_LL r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-#ifdef CONFIG_VSX
-BEGIN_FTR_SECTION
- lis r3,(MSR_VEC|MSR_VSX)@h
-FTR_SECTION_ELSE
- lis r3,MSR_VEC@h
-ALT_FTR_SECTION_END_IFSET(CPU_FTR_VSX)
-#else
- lis r3,MSR_VEC@h
-#endif
- andc r4,r4,r3 /* disable FP for previous task */
- PPC_STL r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-1:
blr
#ifdef CONFIG_VSX