diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/include/asm/irq.h | 23 | ||||
| -rw-r--r-- | arch/s390/kernel/irq.c | 30 | ||||
| -rw-r--r-- | arch/s390/kernel/nmi.c | 3 | ||||
| -rw-r--r-- | arch/s390/kernel/smp.c | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/time.c | 3 | ||||
| -rw-r--r-- | arch/s390/kernel/vtime.c | 1 | ||||
| -rw-r--r-- | arch/s390/mm/fault.c | 2 |
7 files changed, 44 insertions, 19 deletions
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index 7da991a..f65faf6 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -1,23 +1,22 @@ #ifndef _ASM_IRQ_H #define _ASM_IRQ_H -#ifdef __KERNEL__ #include <linux/hardirq.h> -/* - * the definition of irqs has changed in 2.5.46: - * NR_IRQS is no longer the number of i/o - * interrupts (65536), but rather the number - * of interrupt classes (2). - * Only external and i/o interrupts make much sense here (CH). - */ - enum interruption_class { EXTERNAL_INTERRUPT, IO_INTERRUPT, - + EXTINT_CLK, + EXTINT_IPI, + EXTINT_TMR, + EXTINT_TLA, + EXTINT_PFL, + EXTINT_DSD, + EXTINT_VRT, + EXTINT_SCP, + EXTINT_IUC, + NMI_NMI, NR_IRQS, }; -#endif /* __KERNEL__ */ -#endif +#endif /* _ASM_IRQ_H */ diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 026a37a..9bd049b 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -1,7 +1,5 @@ /* - * arch/s390/kernel/irq.c - * - * Copyright IBM Corp. 2004,2007 + * Copyright IBM Corp. 2004,2010 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com), * Thomas Spatzier (tspat@de.ibm.com) * @@ -17,12 +15,31 @@ #include <linux/proc_fs.h> #include <linux/profile.h> +struct irq_class { + char *name; + char *desc; +}; + +static const struct irq_class intrclass_names[] = { + {.name = "EXT" }, + {.name = "I/O" }, + {.name = "CLK", .desc = "[EXT] Clock Comparator" }, + {.name = "IPI", .desc = "[EXT] Signal Processor" }, + {.name = "TMR", .desc = "[EXT] CPU Timer" }, + {.name = "TAL", .desc = "[EXT] Timing Alert" }, + {.name = "PFL", .desc = "[EXT] Pseudo Page Fault" }, + {.name = "DSD", .desc = "[EXT] DASD Diag" }, + {.name = "VRT", .desc = "[EXT] Virtio" }, + {.name = "SCP", .desc = "[EXT] Service Call" }, + {.name = "IUC", .desc = "[EXT] IUCV" }, + {.name = "NMI", .desc = "[NMI] Machine Check" }, +}; + /* * show_interrupts is needed by /proc/interrupts. */ int show_interrupts(struct seq_file *p, void *v) { - static const char *intrclass_names[] = { "EXT", "I/O", }; int i = *(loff_t *) v, j; get_online_cpus(); @@ -34,15 +51,16 @@ int show_interrupts(struct seq_file *p, void *v) } if (i < NR_IRQS) { - seq_printf(p, "%s: ", intrclass_names[i]); + seq_printf(p, "%s: ", intrclass_names[i].name); #ifndef CONFIG_SMP seq_printf(p, "%10u ", kstat_irqs(i)); #else for_each_online_cpu(j) seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]); #endif + if (intrclass_names[i].desc) + seq_printf(p, " %s", intrclass_names[i].desc); seq_putc(p, '\n'); - } put_online_cpus(); return 0; diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c index 1995c17..fab8843 100644 --- a/arch/s390/kernel/nmi.c +++ b/arch/s390/kernel/nmi.c @@ -8,6 +8,7 @@ * Heiko Carstens <heiko.carstens@de.ibm.com>, */ +#include <linux/kernel_stat.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/hardirq.h> @@ -255,7 +256,7 @@ void notrace s390_do_machine_check(struct pt_regs *regs) nmi_enter(); s390_idle_check(regs, S390_lowcore.mcck_clock, S390_lowcore.mcck_enter_timer); - + kstat_cpu(smp_processor_id()).irqs[NMI_NMI]++; mci = (struct mci *) &S390_lowcore.mcck_interruption_code; mcck = &__get_cpu_var(cpu_mcck); umode = user_mode(regs); diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 94cf510..a9702df 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -161,6 +161,7 @@ static void do_ext_call_interrupt(unsigned int ext_int_code, { unsigned long bits; + kstat_cpu(smp_processor_id()).irqs[EXTINT_IPI]++; /* * handle bit signal external calls * diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 4c9d72d..9e7b039 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -15,6 +15,7 @@ #define KMSG_COMPONENT "time" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt +#include <linux/kernel_stat.h> #include <linux/errno.h> #include <linux/module.h> #include <linux/sched.h> @@ -160,6 +161,7 @@ static void clock_comparator_interrupt(unsigned int ext_int_code, unsigned int param32, unsigned long param64) { + kstat_cpu(smp_processor_id()).irqs[EXTINT_CLK]++; if (S390_lowcore.clock_comparator == -1ULL) set_clock_comparator(S390_lowcore.clock_comparator); } @@ -170,6 +172,7 @@ static void stp_timing_alert(struct stp_irq_parm *); static void timing_alert_interrupt(unsigned int ext_int_code, unsigned int param32, unsigned long param64) { + kstat_cpu(smp_processor_id()).irqs[EXTINT_TLA]++; if (param32 & 0x00c40000) etr_timing_alert((struct etr_irq_parm *) ¶m32); if (param32 & 0x00038000) diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c index 8636dd0..1ccdf4d 100644 --- a/arch/s390/kernel/vtime.c +++ b/arch/s390/kernel/vtime.c @@ -324,6 +324,7 @@ static void do_cpu_timer_interrupt(unsigned int ext_int_code, struct list_head cb_list; /* the callback queue */ __u64 elapsed, next; + kstat_cpu(smp_processor_id()).irqs[EXTINT_TMR]++; INIT_LIST_HEAD(&cb_list); vq = &__get_cpu_var(virt_cpu_timer); diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index fe5701e..839b16d 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -10,6 +10,7 @@ * Copyright (C) 1995 Linus Torvalds */ +#include <linux/kernel_stat.h> #include <linux/perf_event.h> #include <linux/signal.h> #include <linux/sched.h> @@ -543,6 +544,7 @@ static void pfault_interrupt(unsigned int ext_int_code, struct task_struct *tsk; __u16 subcode; + kstat_cpu(smp_processor_id()).irqs[EXTINT_PFL]++; /* * Get the external interruption subcode & pfault * initial/completion signal bit. VM stores this |