/* 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> /* 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) #endif /* _ASM_S390_PERF_EVENT_H */ |