diff options
| author | Hendrik Brueckner <brueckner@linux.vnet.ibm.com> | 2013-12-11 12:44:40 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-12-16 14:37:50 +0100 |
| commit | c716832513f30430179b60ac5ffd203c53f7eb40 (patch) | |
| tree | c9b29a4b189b928661cca6751c72db5b29d07573 /arch/s390/include | |
| parent | cf48ad83278aad39d4a0158cd085b6038b2941e6 (diff) | |
s390/cpum_cf: Export event names in sysfs
Provide PMU event attributes for supported counters and export their symbolic
names to the sysfs "events" directory.
See the /sys/devices/cpum_cf/events/ directory for a list of available counters.
Note that you might require counter set authorizations for the LPAR to use them.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/perf_event.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h index 1141fb3e7b21..34185020ae0a 100644 --- a/arch/s390/include/asm/perf_event.h +++ b/arch/s390/include/asm/perf_event.h @@ -1,11 +1,18 @@ /* * Performance event support - s390 specific definitions. * - * Copyright IBM Corp. 2009, 2012 + * Copyright IBM Corp. 2009, 2013 * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> * Hendrik Brueckner <brueckner@linux.vnet.ibm.com> */ +#ifndef _ASM_S390_PERF_EVENT_H +#define _ASM_S390_PERF_EVENT_H + +#ifdef CONFIG_64BIT + +#include <linux/perf_event.h> +#include <linux/device.h> #include <asm/cpu_mf.h> /* CPU-measurement counter facility */ @@ -15,7 +22,18 @@ #define PMU_F_RESERVED 0x1000 #define PMU_F_ENABLED 0x2000 -#ifdef CONFIG_64BIT +/* Perf defintions for PMU event attributes in sysfs */ +extern __init const struct attribute_group **cpumf_cf_event_group(void); +extern ssize_t cpumf_events_sysfs_show(struct device *dev, + struct device_attribute *attr, + char *page); +#define EVENT_VAR(_cat, _name) event_attr_##_cat##_##_name +#define EVENT_PTR(_cat, _name) (&EVENT_VAR(_cat, _name).attr.attr) + +#define CPUMF_EVENT_ATTR(cat, name, id) \ + PMU_EVENT_ATTR(name, EVENT_VAR(cat, name), id, cpumf_events_sysfs_show) +#define CPUMF_EVENT_PTR(cat, name) EVENT_PTR(cat, name) + /* Perf callbacks */ struct pt_regs; @@ -24,3 +42,4 @@ extern unsigned long perf_misc_flags(struct pt_regs *regs); #define perf_misc_flags(regs) perf_misc_flags(regs) #endif /* CONFIG_64BIT */ +#endif /* _ASM_S390_PERF_EVENT_H */ |