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/*
* Performance event support - s390 specific definitions.
*
* 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>
/* Per-CPU flags for PMU states */
#define PMU_F_RESERVED 0x1000
#define PMU_F_ENABLED 0x2000
#define PMU_F_IN_USE 0x4000
#define PMU_F_ERR_IBE 0x0100
#define PMU_F_ERR_LSDA 0x0200
#define PMU_F_ERR_MASK (PMU_F_ERR_IBE|PMU_F_ERR_LSDA)
/* 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;
extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
extern unsigned long perf_misc_flags(struct pt_regs *regs);
#define perf_misc_flags(regs) perf_misc_flags(regs)
/* Perf PMU definitions for the counter facility */
#define PERF_CPUM_CF_MAX_CTR 256
/* Perf PMU definitions for the sampling facility */
#define PERF_CPUM_SF_MAX_CTR 1
#define PERF_EVENT_CPUM_SF 0xB0000UL /* Raw event ID */
#define TEAR_REG(hwc) ((hwc)->last_tag)
#define SAMPL_RATE(hwc) ((hwc)->event_base)
#endif /* CONFIG_64BIT */
#endif /* _ASM_S390_PERF_EVENT_H */
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