hwsampler.h
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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>
#include <asm/cpu_mf.h>
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;
};
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_*/