diff options
| author | Anton Blanchard <anton@samba.org> | 2015-10-29 01:44:00 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-12-01 03:52:25 +0100 |
| commit | b51b1153d0e78a70767441273331d2de066bb929 (patch) | |
| tree | 1b41562f57798ca87aa5f363c66cb3c8530e6ebf /arch/powerpc/kernel/vector.S | |
| parent | powerpc: Create mtmsrd_isync() (diff) | |
| download | linux-b51b1153d0e78a70767441273331d2de066bb929.tar.xz linux-b51b1153d0e78a70767441273331d2de066bb929.zip | |
powerpc: Remove NULL task struct pointer checks in FP and vector code
We used to allow giveup_*() to be called with a NULL task struct
pointer. Now those cases are handled in the caller we can remove
the checks. We can also remove giveup_altivec_notask() which is also
unused.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/vector.S')
| -rw-r--r-- | arch/powerpc/kernel/vector.S | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S index 1757c0c936c1..b31528c30253 100644 --- a/arch/powerpc/kernel/vector.S +++ b/arch/powerpc/kernel/vector.S @@ -111,16 +111,6 @@ _GLOBAL(load_up_altivec) /* restore registers and return */ blr -_GLOBAL(giveup_altivec_notask) - mfmsr r3 - andis. r4,r3,MSR_VEC@h - bnelr /* Already enabled? */ - oris r3,r3,MSR_VEC@h - SYNC - MTMSRD(r3) /* enable use of VMX now */ - isync - blr - /* * giveup_altivec(tsk) * Disable VMX for the task given as the argument, @@ -133,8 +123,6 @@ _GLOBAL(giveup_altivec) SYNC MTMSRD(r5) /* enable use of VMX now */ isync - PPC_LCMPI 0,r3,0 - beqlr /* if no previous owner, done */ addi r3,r3,THREAD /* want THREAD of task */ PPC_LL r7,THREAD_VRSAVEAREA(r3) PPC_LL r5,PT_REGS(r3) @@ -203,8 +191,6 @@ _GLOBAL(__giveup_vsx) mtmsrd r5 /* enable use of VSX now */ isync - cmpdi 0,r3,0 - beqlr- /* if no previous owner, done */ addi r3,r3,THREAD /* want THREAD of task */ ld r5,PT_REGS(r3) cmpdi 0,r5,0 |