diff options
Diffstat (limited to 'arch/powerpc/kernel/vdso32/getcpu.S')
| -rw-r--r-- | arch/powerpc/kernel/vdso32/getcpu.S | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/vdso32/getcpu.S b/arch/powerpc/kernel/vdso32/getcpu.S index 63e914539e1a..ff5e214fec41 100644 --- a/arch/powerpc/kernel/vdso32/getcpu.S +++ b/arch/powerpc/kernel/vdso32/getcpu.S @@ -15,6 +15,7 @@ * int __kernel_getcpu(unsigned *cpu, unsigned *node); * */ +#if defined(CONFIG_PPC64) V_FUNCTION_BEGIN(__kernel_getcpu) .cfi_startproc mfspr r5,SPRN_SPRG_VDSO_READ @@ -24,10 +25,26 @@ V_FUNCTION_BEGIN(__kernel_getcpu) rlwinm r7,r5,16,31-15,31-0 beq cr0,1f stw r6,0(r3) -1: beq cr1,2f - stw r7,0(r4) -2: crclr cr0*4+so +1: crclr cr0*4+so li r3,0 /* always success */ + beqlr cr1 + stw r7,0(r4) + blr + .cfi_endproc +V_FUNCTION_END(__kernel_getcpu) +#elif !defined(CONFIG_SMP) +V_FUNCTION_BEGIN(__kernel_getcpu) + .cfi_startproc + cmpwi cr0, r3, 0 + cmpwi cr1, r4, 0 + li r5, 0 + beq cr0, 1f + stw r5, 0(r3) +1: li r3, 0 /* always success */ + crclr cr0*4+so + beqlr cr1 + stw r5, 0(r4) blr .cfi_endproc V_FUNCTION_END(__kernel_getcpu) +#endif |