diff options
Diffstat (limited to 'arch/s390/kernel/nmi.c')
| -rw-r--r-- | arch/s390/kernel/nmi.c | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c index ac151399ef3..210e1285f75 100644 --- a/arch/s390/kernel/nmi.c +++ b/arch/s390/kernel/nmi.c @@ -1,13 +1,14 @@ /* * Machine check handler * - * Copyright IBM Corp. 2000,2009 + * Copyright IBM Corp. 2000, 2009 * Author(s): Ingo Adlung <adlung@de.ibm.com>, * Martin Schwidefsky <schwidefsky@de.ibm.com>, * Cornelia Huck <cornelia.huck@de.ibm.com>, * Heiko Carstens <heiko.carstens@de.ibm.com>, */ +#include <linux/kernel_stat.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/hardirq.h> @@ -29,7 +30,7 @@ struct mcck_struct { static DEFINE_PER_CPU(struct mcck_struct, cpu_mcck); -static NORET_TYPE void s390_handle_damage(char *msg) +static void s390_handle_damage(char *msg) { smp_send_stop(); disabled_wait((unsigned long) __builtin_return_address(0)); @@ -54,7 +55,7 @@ void s390_handle_mcck(void) local_mcck_disable(); mcck = __get_cpu_var(cpu_mcck); memset(&__get_cpu_var(cpu_mcck), 0, sizeof(struct mcck_struct)); - clear_thread_flag(TIF_MCCK_PENDING); + clear_cpu_flag(CIF_MCCK_PENDING); local_mcck_enable(); local_irq_restore(flags); @@ -95,7 +96,6 @@ EXPORT_SYMBOL_GPL(s390_handle_mcck); static int notrace s390_revalidate_registers(struct mci *mci) { int kill_task; - u64 tmpclock; u64 zero; void *fpt_save_area, *fpt_creg_save_area; @@ -214,11 +214,7 @@ static int notrace s390_revalidate_registers(struct mci *mci) : "0", "cc"); #endif /* Revalidate clock comparator register */ - asm volatile( - " stck 0(%1)\n" - " sckc 0(%1)" - : "=m" (tmpclock) : "a" (&(tmpclock)) : "cc", "memory"); - + set_clock_comparator(S390_lowcore.clock_comparator); /* Check if old PSW is valid */ if (!mci->wp) /* @@ -255,9 +251,7 @@ void notrace s390_do_machine_check(struct pt_regs *regs) int umode; nmi_enter(); - s390_idle_check(regs, S390_lowcore.mcck_clock, - S390_lowcore.mcck_enter_timer); - + inc_irq_stat(NMI_NMI); mci = (struct mci *) &S390_lowcore.mcck_interruption_code; mcck = &__get_cpu_var(cpu_mcck); umode = user_mode(regs); @@ -296,7 +290,7 @@ void notrace s390_do_machine_check(struct pt_regs *regs) * retry this instruction. */ spin_lock(&ipd_lock); - tmp = get_clock(); + tmp = get_tod_clock(); if (((tmp - last_ipd) >> 12) < MAX_IPD_TIME) ipd_count++; else @@ -319,7 +313,7 @@ void notrace s390_do_machine_check(struct pt_regs *regs) */ mcck->kill_task = 1; mcck->mcck_code = *(unsigned long long *) mci; - set_thread_flag(TIF_MCCK_PENDING); + set_cpu_flag(CIF_MCCK_PENDING); } else { /* * Couldn't restore all register contents while in @@ -358,12 +352,12 @@ void notrace s390_do_machine_check(struct pt_regs *regs) if (mci->cp) { /* Channel report word pending */ mcck->channel_report = 1; - set_thread_flag(TIF_MCCK_PENDING); + set_cpu_flag(CIF_MCCK_PENDING); } if (mci->w) { /* Warning pending */ mcck->warning = 1; - set_thread_flag(TIF_MCCK_PENDING); + set_cpu_flag(CIF_MCCK_PENDING); } nmi_exit(); } |