diff options
Diffstat (limited to 'arch/s390/oprofile/hwsampler.h')
| -rw-r--r-- | arch/s390/oprofile/hwsampler.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/arch/s390/oprofile/hwsampler.h b/arch/s390/oprofile/hwsampler.h new file mode 100644 index 00000000000..8c72b59316b --- /dev/null +++ b/arch/s390/oprofile/hwsampler.h @@ -0,0 +1,113 @@ +/* + * CPUMF HW sampler functions and internal structures + * + * Copyright IBM Corp. 2010 + * Author(s): Heinz Graalfs <graalfs@de.ibm.com> + */ + +#ifndef HWSAMPLER_H_ +#define HWSAMPLER_H_ + +#include <linux/workqueue.h> + +struct hws_qsi_info_block /* QUERY SAMPLING information block */ +{ /* Bit(s) */ + unsigned int b0_13:14; /* 0-13: zeros */ + unsigned int as:1; /* 14: sampling authorisation control*/ + unsigned int b15_21:7; /* 15-21: zeros */ + unsigned int es:1; /* 22: sampling enable control */ + unsigned int b23_29:7; /* 23-29: zeros */ + unsigned int cs:1; /* 30: sampling activation control */ + unsigned int:1; /* 31: reserved */ + unsigned int bsdes:16; /* 4-5: size of sampling entry */ + unsigned int:16; /* 6-7: reserved */ + unsigned long min_sampl_rate; /* 8-15: minimum sampling interval */ + unsigned long max_sampl_rate; /* 16-23: maximum sampling interval*/ + unsigned long tear; /* 24-31: TEAR contents */ + unsigned long dear; /* 32-39: DEAR contents */ + unsigned int rsvrd0; /* 40-43: reserved */ + unsigned int cpu_speed; /* 44-47: CPU speed */ + unsigned long long rsvrd1; /* 48-55: reserved */ + unsigned long long rsvrd2; /* 56-63: reserved */ +}; + +struct hws_ssctl_request_block /* SET SAMPLING CONTROLS req block */ +{ /* bytes 0 - 7 Bit(s) */ + unsigned int s:1; /* 0: maximum buffer indicator */ + unsigned int h:1; /* 1: part. level reserved for VM use*/ + unsigned long b2_53:52; /* 2-53: zeros */ + unsigned int es:1; /* 54: sampling enable control */ + unsigned int b55_61:7; /* 55-61: - zeros */ + unsigned int cs:1; /* 62: sampling activation control */ + unsigned int b63:1; /* 63: zero */ + unsigned long interval; /* 8-15: sampling interval */ + unsigned long tear; /* 16-23: TEAR contents */ + unsigned long dear; /* 24-31: DEAR contents */ + /* 32-63: */ + unsigned long rsvrd1; /* reserved */ + unsigned long rsvrd2; /* reserved */ + unsigned long rsvrd3; /* reserved */ + unsigned long rsvrd4; /* reserved */ +}; + +struct hws_cpu_buffer { + unsigned long first_sdbt; /* @ of 1st SDB-Table for this CP*/ + unsigned long worker_entry; + unsigned long sample_overflow; /* taken from SDB ... */ + struct hws_qsi_info_block qsi; + struct hws_ssctl_request_block ssctl; + struct work_struct worker; + atomic_t ext_params; + unsigned long req_alert; + unsigned long loss_of_sample_data; + unsigned long invalid_entry_address; + unsigned long incorrect_sdbt_entry; + unsigned long sample_auth_change_alert; + unsigned int finish:1; + unsigned int oom:1; + unsigned int stop_mode:1; +}; + +struct hws_data_entry { + unsigned int def:16; /* 0-15 Data Entry Format */ + unsigned int R:4; /* 16-19 reserved */ + unsigned int U:4; /* 20-23 Number of unique instruct. */ + unsigned int z:2; /* zeros */ + unsigned int T:1; /* 26 PSW DAT mode */ + unsigned int W:1; /* 27 PSW wait state */ + unsigned int P:1; /* 28 PSW Problem state */ + unsigned int AS:2; /* 29-30 PSW address-space control */ + unsigned int I:1; /* 31 entry valid or invalid */ + unsigned int:16; + unsigned int prim_asn:16; /* primary ASN */ + unsigned long long ia; /* Instruction Address */ + unsigned long long lpp; /* Logical-Partition Program Param. */ + unsigned long long vpp; /* Virtual-Machine Program Param. */ +}; + +struct hws_trailer_entry { + unsigned int f:1; /* 0 - Block Full Indicator */ + unsigned int a:1; /* 1 - Alert request control */ + unsigned long:62; /* 2 - 63: Reserved */ + unsigned long overflow; /* 64 - sample Overflow count */ + unsigned long timestamp; /* 16 - time-stamp */ + unsigned long timestamp1; /* */ + unsigned long reserved1; /* 32 -Reserved */ + unsigned long reserved2; /* */ + unsigned long progusage1; /* 48 - reserved for programming use */ + unsigned long progusage2; /* */ +}; + +int hwsampler_setup(void); +int hwsampler_shutdown(void); +int hwsampler_allocate(unsigned long sdbt, unsigned long sdb); +int hwsampler_deallocate(void); +long hwsampler_query_min_interval(void); +long hwsampler_query_max_interval(void); +int hwsampler_start_all(unsigned long interval); +int hwsampler_stop_all(void); +int hwsampler_deactivate(unsigned int cpu); +int hwsampler_activate(unsigned int cpu); +unsigned long hwsampler_get_sample_overflow_count(unsigned int cpu); + +#endif /*HWSAMPLER_H_*/ |