projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| cdd6c482 IM |
1 | /* |
| 2 | * Performance event support - s390 specific definitions. | |
| 3 | * | |
| c7168325 | 4 | * Copyright IBM Corp. 2009, 2013 |
| 212188a5 HB |
5 | * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> |
| 6 | * Hendrik Brueckner <brueckner@linux.vnet.ibm.com> | |
| cdd6c482 IM |
7 | */ |
| 8 | ||
| c7168325 HB |
9 | #ifndef _ASM_S390_PERF_EVENT_H |
| 10 | #define _ASM_S390_PERF_EVENT_H | |
| 11 | ||
| c7168325 HB |
12 | #include <linux/perf_event.h> |
| 13 | #include <linux/device.h> | |
| 212188a5 | 14 | #include <asm/cpu_mf.h> |
| cdd6c482 | 15 | |
| 212188a5 HB |
16 | /* Per-CPU flags for PMU states */ |
| 17 | #define PMU_F_RESERVED 0x1000 | |
| 18 | #define PMU_F_ENABLED 0x2000 | |
| 8c069ff4 HB |
19 | #define PMU_F_IN_USE 0x4000 |
| 20 | #define PMU_F_ERR_IBE 0x0100 | |
| 21 | #define PMU_F_ERR_LSDA 0x0200 | |
| 22 | #define PMU_F_ERR_MASK (PMU_F_ERR_IBE|PMU_F_ERR_LSDA) | |
| b764bb1c | 23 | |
| c7168325 HB |
24 | /* Perf defintions for PMU event attributes in sysfs */ |
| 25 | extern __init const struct attribute_group **cpumf_cf_event_group(void); | |
| 26 | extern ssize_t cpumf_events_sysfs_show(struct device *dev, | |
| 27 | struct device_attribute *attr, | |
| 28 | char *page); | |
| 29 | #define EVENT_VAR(_cat, _name) event_attr_##_cat##_##_name | |
| 30 | #define EVENT_PTR(_cat, _name) (&EVENT_VAR(_cat, _name).attr.attr) | |
| 31 | ||
| 32 | #define CPUMF_EVENT_ATTR(cat, name, id) \ | |
| 33 | PMU_EVENT_ATTR(name, EVENT_VAR(cat, name), id, cpumf_events_sysfs_show) | |
| 34 | #define CPUMF_EVENT_PTR(cat, name) EVENT_PTR(cat, name) | |
| 35 | ||
| b764bb1c HG |
36 | |
| 37 | /* Perf callbacks */ | |
| 38 | struct pt_regs; | |
| 39 | extern unsigned long perf_instruction_pointer(struct pt_regs *regs); | |
| 40 | extern unsigned long perf_misc_flags(struct pt_regs *regs); | |
| 41 | #define perf_misc_flags(regs) perf_misc_flags(regs) | |
| 42 | ||
| 443e802b HB |
43 | /* Perf pt_regs extension for sample-data-entry indicators */ |
| 44 | struct perf_sf_sde_regs { | |
| 45 | unsigned char in_guest:1; /* guest sample */ | |
| 46 | unsigned long reserved:63; /* reserved */ | |
| 47 | }; | |
| 48 | ||
| 8c069ff4 HB |
49 | /* Perf PMU definitions for the counter facility */ |
| 50 | #define PERF_CPUM_CF_MAX_CTR 256 | |
| 51 | ||
| 52 | /* Perf PMU definitions for the sampling facility */ | |
| 7e75fc3f HB |
53 | #define PERF_CPUM_SF_MAX_CTR 2 |
| 54 | #define PERF_EVENT_CPUM_SF 0xB0000UL /* Event: Basic-sampling */ | |
| 55 | #define PERF_EVENT_CPUM_SF_DIAG 0xBD000UL /* Event: Combined-sampling */ | |
| 56 | #define PERF_CPUM_SF_BASIC_MODE 0x0001 /* Basic-sampling flag */ | |
| 57 | #define PERF_CPUM_SF_DIAG_MODE 0x0002 /* Diagnostic-sampling flag */ | |
| 58 | #define PERF_CPUM_SF_MODE_MASK (PERF_CPUM_SF_BASIC_MODE| \ | |
| 59 | PERF_CPUM_SF_DIAG_MODE) | |
| d7528862 | 60 | #define PERF_CPUM_SF_FULL_BLOCKS 0x0004 /* Process full SDBs only */ |
| 8c069ff4 | 61 | |
| 69f239ed HB |
62 | #define REG_NONE 0 |
| 63 | #define REG_OVERFLOW 1 | |
| 64 | #define OVERFLOW_REG(hwc) ((hwc)->extra_reg.config) | |
| 65 | #define SFB_ALLOC_REG(hwc) ((hwc)->extra_reg.alloc) | |
| 7e75fc3f | 66 | #define RAWSAMPLE_REG(hwc) ((hwc)->config) |
| 8c069ff4 HB |
67 | #define TEAR_REG(hwc) ((hwc)->last_tag) |
| 68 | #define SAMPL_RATE(hwc) ((hwc)->event_base) | |
| 7e75fc3f HB |
69 | #define SAMPL_FLAGS(hwc) ((hwc)->config_base) |
| 70 | #define SAMPL_DIAG_MODE(hwc) (SAMPL_FLAGS(hwc) & PERF_CPUM_SF_DIAG_MODE) | |
| d7528862 | 71 | #define SDB_FULL_BLOCKS(hwc) (SAMPL_FLAGS(hwc) & PERF_CPUM_SF_FULL_BLOCKS) |
| 7e75fc3f HB |
72 | |
| 73 | /* Structure for sampling data entries to be passed as perf raw sample data | |
| 74 | * to user space. Note that raw sample data must be aligned and, thus, might | |
| 75 | * be padded with zeros. | |
| 76 | */ | |
| 77 | struct sf_raw_sample { | |
| 78 | #define SF_RAW_SAMPLE_BASIC PERF_CPUM_SF_BASIC_MODE | |
| 79 | #define SF_RAW_SAMPLE_DIAG PERF_CPUM_SF_DIAG_MODE | |
| 80 | u64 format; | |
| 81 | u32 size; /* Size of sf_raw_sample */ | |
| 82 | u16 bsdes; /* Basic-sampling data entry size */ | |
| 83 | u16 dsdes; /* Diagnostic-sampling data entry size */ | |
| 84 | struct hws_basic_entry basic; /* Basic-sampling data entry */ | |
| 85 | struct hws_diag_entry diag; /* Diagnostic-sampling data entry */ | |
| 86 | u8 padding[]; /* Padding to next multiple of 8 */ | |
| 87 | } __packed; | |
| 8c069ff4 | 88 | |
| e28bb79d | 89 | /* Perf hardware reserve and release functions */ |
| a215c8fb | 90 | #ifdef CONFIG_PERF_EVENTS |
| e28bb79d HB |
91 | int perf_reserve_sampling(void); |
| 92 | void perf_release_sampling(void); | |
| a215c8fb SO |
93 | #else /* CONFIG_PERF_EVENTS */ |
| 94 | static inline int perf_reserve_sampling(void) | |
| 95 | { | |
| 96 | return 0; | |
| 97 | } | |
| 98 | static inline void perf_release_sampling(void) {} | |
| 99 | #endif /* CONFIG_PERF_EVENTS */ | |
| e28bb79d | 100 | |
| c7168325 | 101 | #endif /* _ASM_S390_PERF_EVENT_H */ |