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/*
* 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 gpp; /* Guest Program Parameter */
unsigned long long hpp; /* Host Program Parameter */
};
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);
unsigned long hwsampler_query_min_interval(void);
unsigned 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_*/
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