diff options
Diffstat (limited to 'arch/s390/kernel/traps.c')
| -rw-r--r-- | arch/s390/kernel/traps.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 7b09224c05a3..76f76932ccb9 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -151,7 +151,7 @@ DO_ERROR_INFO(special_op_exception, SIGILL, ILL_ILLOPN, DO_ERROR_INFO(transaction_exception, SIGILL, ILL_ILLOPN, "transaction constraint exception") -static inline void do_fp_trap(struct pt_regs *regs, int fpc) +static inline void do_fp_trap(struct pt_regs *regs, __u32 fpc) { int si_code = 0; /* FPC[2] is Data Exception Code */ @@ -236,17 +236,13 @@ int alloc_vector_registers(struct task_struct *tsk) return -ENOMEM; preempt_disable(); if (tsk == current) - save_fp_regs(tsk->thread.fpu.fprs); + save_fpu_regs(&tsk->thread.fpu); /* Copy the 16 floating point registers */ convert_fp_to_vx(vxrs, tsk->thread.fpu.fprs); fprs = tsk->thread.fpu.fprs; tsk->thread.fpu.vxrs = vxrs; tsk->thread.fpu.flags |= FPU_USE_VX; kfree(fprs); - if (tsk == current) { - __ctl_set_bit(0, 17); - restore_vx_regs(vxrs); - } preempt_enable(); return 0; } @@ -261,7 +257,7 @@ void vector_exception(struct pt_regs *regs) } /* get vector interrupt code from fpc */ - asm volatile("stfpc %0" : "=Q" (current->thread.fpu.fpc)); + save_fpu_regs(¤t->thread.fpu); vic = (current->thread.fpu.fpc & 0xf00) >> 8; switch (vic) { case 1: /* invalid vector operation */ @@ -299,7 +295,7 @@ void data_exception(struct pt_regs *regs) location = get_trap_ip(regs); - asm volatile("stfpc %0" : "=Q" (current->thread.fpu.fpc)); + save_fpu_regs(¤t->thread.fpu); /* Check for vector register enablement */ if (MACHINE_HAS_VX && !is_vx_task(current) && (current->thread.fpu.fpc & FPC_DXC_MASK) == 0xfe00) { |