84 lines
3.1 KiB
C
84 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Performance event support - s390 specific definitions.
|
|
*
|
|
* Copyright IBM Corp. 2009, 2017
|
|
* 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
|
|
|
|
#include <linux/perf_event.h>
|
|
#include <linux/device.h>
|
|
#include <asm/stacktrace.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 definitions 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)
|
|
#define perf_arch_bpf_user_pt_regs(regs) ®s->user_regs
|
|
|
|
/* Perf pt_regs extension for sample-data-entry indicators */
|
|
struct perf_sf_sde_regs {
|
|
unsigned char in_guest:1; /* guest sample */
|
|
unsigned long reserved:63; /* reserved */
|
|
};
|
|
|
|
/* Perf PMU definitions for the counter facility */
|
|
#define PERF_CPUM_CF_MAX_CTR 0xffffUL /* Max ctr for ECCTR */
|
|
|
|
/* Perf PMU definitions for the sampling facility */
|
|
#define PERF_CPUM_SF_MAX_CTR 2
|
|
#define PERF_EVENT_CPUM_SF 0xB0000UL /* Event: Basic-sampling */
|
|
#define PERF_EVENT_CPUM_SF_DIAG 0xBD000UL /* Event: Combined-sampling */
|
|
#define PERF_EVENT_CPUM_CF_DIAG 0xBC000UL /* Event: Counter sets */
|
|
#define PERF_CPUM_SF_BASIC_MODE 0x0001 /* Basic-sampling flag */
|
|
#define PERF_CPUM_SF_DIAG_MODE 0x0002 /* Diagnostic-sampling flag */
|
|
#define PERF_CPUM_SF_MODE_MASK (PERF_CPUM_SF_BASIC_MODE| \
|
|
PERF_CPUM_SF_DIAG_MODE)
|
|
#define PERF_CPUM_SF_FULL_BLOCKS 0x0004 /* Process full SDBs only */
|
|
#define PERF_CPUM_SF_FREQ_MODE 0x0008 /* Sampling with frequency */
|
|
|
|
#define REG_NONE 0
|
|
#define REG_OVERFLOW 1
|
|
#define OVERFLOW_REG(hwc) ((hwc)->extra_reg.config)
|
|
#define SFB_ALLOC_REG(hwc) ((hwc)->extra_reg.alloc)
|
|
#define TEAR_REG(hwc) ((hwc)->last_tag)
|
|
#define SAMPL_RATE(hwc) ((hwc)->event_base)
|
|
#define SAMPL_FLAGS(hwc) ((hwc)->config_base)
|
|
#define SAMPL_DIAG_MODE(hwc) (SAMPL_FLAGS(hwc) & PERF_CPUM_SF_DIAG_MODE)
|
|
#define SDB_FULL_BLOCKS(hwc) (SAMPL_FLAGS(hwc) & PERF_CPUM_SF_FULL_BLOCKS)
|
|
#define SAMPLE_FREQ_MODE(hwc) (SAMPL_FLAGS(hwc) & PERF_CPUM_SF_FREQ_MODE)
|
|
|
|
#define perf_arch_fetch_caller_regs(regs, __ip) do { \
|
|
(regs)->psw.addr = (__ip); \
|
|
(regs)->gprs[15] = (unsigned long)__builtin_frame_address(0) - \
|
|
offsetof(struct stack_frame, back_chain); \
|
|
} while (0)
|
|
|
|
#endif /* _ASM_S390_PERF_EVENT_H */
|