diff options
Diffstat (limited to 'arch/s390/include/asm/switch_to.h')
| -rw-r--r-- | arch/s390/include/asm/switch_to.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h index 0e0109578021..2542a7e4c8b4 100644 --- a/arch/s390/include/asm/switch_to.h +++ b/arch/s390/include/asm/switch_to.h @@ -114,6 +114,19 @@ static inline void save_vx_regs(__vector128 *vxrs) : "=Q" (*(addrtype *) vxrs) : : "1"); } +static inline void save_vx_regs_safe(__vector128 *vxrs) +{ + unsigned long cr0, flags; + + flags = arch_local_irq_save(); + __ctl_store(cr0, 0, 0); + __ctl_set_bit(0, 17); + __ctl_set_bit(0, 18); + save_vx_regs(vxrs); + __ctl_load(cr0, 0, 0); + arch_local_irq_restore(flags); +} + static inline void restore_vx_regs(__vector128 *vxrs) { typedef struct { __vector128 _[__NUM_VXRS]; } addrtype; |