diff options
Diffstat (limited to 'arch/s390/kernel/process.c')
| -rw-r--r-- | arch/s390/kernel/process.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index c5dbb335716d..7ed0d4e2a435 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -139,7 +139,7 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp, if (unlikely(p->flags & PF_KTHREAD)) { /* kernel thread */ memset(&frame->childregs, 0, sizeof(struct pt_regs)); - frame->childregs.psw.mask = psw_kernel_bits | PSW_MASK_DAT | + frame->childregs.psw.mask = PSW_KERNEL_BITS | PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK; frame->childregs.psw.addr = PSW_ADDR_AMODE | (unsigned long) kernel_thread_starter; @@ -165,7 +165,8 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp, * save fprs to current->thread.fp_regs to merge them with * the emulated registers and then copy the result to the child. */ - save_fp_regs(¤t->thread.fp_regs); + save_fp_ctl(¤t->thread.fp_regs.fpc); + save_fp_regs(current->thread.fp_regs.fprs); memcpy(&p->thread.fp_regs, ¤t->thread.fp_regs, sizeof(s390_fp_regs)); /* Set a new TLS ? */ @@ -173,7 +174,9 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp, p->thread.acrs[0] = frame->childregs.gprs[6]; #else /* CONFIG_64BIT */ /* Save the fpu registers to new thread structure. */ - save_fp_regs(&p->thread.fp_regs); + save_fp_ctl(&p->thread.fp_regs.fpc); + save_fp_regs(p->thread.fp_regs.fprs); + p->thread.fp_regs.pad = 0; /* Set a new TLS ? */ if (clone_flags & CLONE_SETTLS) { unsigned long tls = frame->childregs.gprs[6]; @@ -205,10 +208,12 @@ int dump_fpu (struct pt_regs * regs, s390_fp_regs *fpregs) * save fprs to current->thread.fp_regs to merge them with * the emulated registers and then copy the result to the dump. */ - save_fp_regs(¤t->thread.fp_regs); + save_fp_ctl(¤t->thread.fp_regs.fpc); + save_fp_regs(current->thread.fp_regs.fprs); memcpy(fpregs, ¤t->thread.fp_regs, sizeof(s390_fp_regs)); #else /* CONFIG_64BIT */ - save_fp_regs(fpregs); + save_fp_ctl(&fpregs->fpc); + save_fp_regs(fpregs->fprs); #endif /* CONFIG_64BIT */ return 1; } |