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powerpc: Remove static branch hint in giveup_altivec 

A static branch hint will override dynamic branch prediction on
recent POWER CPUs. Since we are about to use more altivec in the
kernel remove the static hint in giveup_altivec that assumes
a userspace task is using altivec.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard 2011-05-08 21:20:19 +00:00 committed by Benjamin Herrenschmidt
parent d988f0e3f8
commit ba00ce1d6e
1 changed files with 1 additions and 1 deletions
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arch/powerpc/kernel/vector.S
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@ -102,7 +102,7 @@ _GLOBAL(giveup_altivec)
MTMSRD(r5) /* enable use of VMX now */
isync
PPC_LCMPI 0,r3,0
beqlr- /* if no previous owner, done */
beqlr /* if no previous owner, done */
addi r3,r3,THREAD /* want THREAD of task */
PPC_LL r5,PT_REGS(r3)
PPC_LCMPI 0,r5,0